projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| b90efa5b | 2 | Copyright (C) 1999-2015 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) */ |
| ad8e1ba5 | 176 | |
| 397998fc | 177 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
| a345bc8d AM |
178 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 179 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 180 | ||
| ee4bf8d2 | 181 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 182 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
183 | /* 0: */ |
| 184 | /* .quad plt0-1f */ | |
| 185 | /* __glink: */ | |
| 186 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 187 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 188 | /* 1: */ | |
| 189 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 190 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 191 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
192 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 193 | /* ld %12,0(%11) */ | |
| 194 | /* ld %2,8(%11) */ | |
| 195 | /* mtctr %12 */ | |
| 196 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 197 | /* bctr */ |
| b9e5796b AM |
198 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 199 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 200 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 201 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 202 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
203 | |
| 204 | /* Pad with this. */ | |
| 205 | #define NOP 0x60000000 | |
| 206 | ||
| 721956f4 AM |
207 | /* Some other nops. */ |
| 208 | #define CROR_151515 0x4def7b82 | |
| 209 | #define CROR_313131 0x4ffffb82 | |
| 210 | ||
| cedb70c5 | 211 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
212 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 213 | #define B_DOT 0x48000000 /* b . */ | |
| 214 | ||
| 215 | /* After that, we need two instructions to load the index, followed by | |
| 216 | a branch. */ | |
| 217 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 218 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 219 | |
| deb0e272 AM |
220 | /* Instructions used by the save and restore reg functions. */ |
| 221 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 222 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 223 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 224 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
225 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 226 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
227 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 228 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 229 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 230 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
231 | #define BLR 0x4e800020 /* blr */ |
| 232 | ||
| 41bd81ab AM |
233 | /* Since .opd is an array of descriptors and each entry will end up |
| 234 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 235 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 236 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
237 | #ifndef NO_OPD_RELOCS |
| 238 | #define NO_OPD_RELOCS 0 | |
| 239 | #endif | |
| 810d4e75 AM |
240 | |
| 241 | static inline int | |
| 242 | abiversion (bfd *abfd) | |
| 243 | { | |
| 244 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 245 | } | |
| 246 | ||
| 247 | static inline void | |
| 248 | set_abiversion (bfd *abfd, int ver) | |
| 249 | { | |
| 250 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 251 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 252 | } | |
| 5bd4f169 | 253 | \f |
| f5e87a1d | 254 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 255 | |
| 5bd4f169 | 256 | /* Relocation HOWTO's. */ |
| 04c9666a | 257 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
258 | |
| 259 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 260 | /* This reloc does nothing. */ | |
| 261 | HOWTO (R_PPC64_NONE, /* type */ | |
| 262 | 0, /* rightshift */ | |
| 6346d5ca AM |
263 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 264 | 0, /* bitsize */ | |
| b34976b6 | 265 | FALSE, /* pc_relative */ |
| 5bd4f169 | 266 | 0, /* bitpos */ |
| f5e87a1d | 267 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
268 | bfd_elf_generic_reloc, /* special_function */ |
| 269 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 270 | FALSE, /* partial_inplace */ |
| d006db6c | 271 | 0, /* src_mask */ |
| 5bd4f169 | 272 | 0, /* dst_mask */ |
| b34976b6 | 273 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
274 | |
| 275 | /* A standard 32 bit relocation. */ | |
| 276 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 277 | 0, /* rightshift */ | |
| 278 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 279 | 32, /* bitsize */ | |
| b34976b6 | 280 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
281 | 0, /* bitpos */ |
| 282 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 283 | bfd_elf_generic_reloc, /* special_function */ | |
| 284 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 285 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
286 | 0, /* src_mask */ |
| 287 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 288 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
289 | |
| 290 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 291 | FIXME: we don't check that, we just clear them. */ | |
| 292 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 293 | 0, /* rightshift */ | |
| 294 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 295 | 26, /* bitsize */ | |
| b34976b6 | 296 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
297 | 0, /* bitpos */ |
| 298 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 299 | bfd_elf_generic_reloc, /* special_function */ | |
| 300 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 301 | FALSE, /* partial_inplace */ |
| d006db6c | 302 | 0, /* src_mask */ |
| f5e87a1d | 303 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 304 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
305 | |
| 306 | /* A standard 16 bit relocation. */ | |
| 307 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 308 | 0, /* rightshift */ | |
| 309 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 310 | 16, /* bitsize */ | |
| b34976b6 | 311 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
312 | 0, /* bitpos */ |
| 313 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 314 | bfd_elf_generic_reloc, /* special_function */ | |
| 315 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 316 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
317 | 0, /* src_mask */ |
| 318 | 0xffff, /* dst_mask */ | |
| b34976b6 | 319 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
320 | |
| 321 | /* A 16 bit relocation without overflow. */ | |
| 322 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 323 | 0, /* rightshift */ | |
| 324 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 325 | 16, /* bitsize */ | |
| b34976b6 | 326 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
327 | 0, /* bitpos */ |
| 328 | complain_overflow_dont,/* complain_on_overflow */ | |
| 329 | bfd_elf_generic_reloc, /* special_function */ | |
| 330 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 331 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
332 | 0, /* src_mask */ |
| 333 | 0xffff, /* dst_mask */ | |
| b34976b6 | 334 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
335 | |
| 336 | /* Bits 16-31 of an address. */ | |
| 337 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 338 | 16, /* rightshift */ | |
| 339 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 340 | 16, /* bitsize */ | |
| b34976b6 | 341 | FALSE, /* pc_relative */ |
| 5bd4f169 | 342 | 0, /* bitpos */ |
| f9c6b907 | 343 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
344 | bfd_elf_generic_reloc, /* special_function */ |
| 345 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 346 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
347 | 0, /* src_mask */ |
| 348 | 0xffff, /* dst_mask */ | |
| b34976b6 | 349 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
350 | |
| 351 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 352 | bits, treated as a signed number, is negative. */ | |
| 353 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 354 | 16, /* rightshift */ | |
| 355 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 356 | 16, /* bitsize */ | |
| b34976b6 | 357 | FALSE, /* pc_relative */ |
| 5bd4f169 | 358 | 0, /* bitpos */ |
| f9c6b907 | 359 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 360 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 361 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 362 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
363 | 0, /* src_mask */ |
| 364 | 0xffff, /* dst_mask */ | |
| b34976b6 | 365 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
366 | |
| 367 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 368 | FIXME: we don't check that, we just clear them. */ | |
| 369 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 370 | 0, /* rightshift */ | |
| 371 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 372 | 16, /* bitsize */ | |
| b34976b6 | 373 | FALSE, /* pc_relative */ |
| 5bd4f169 | 374 | 0, /* bitpos */ |
| b80eed39 | 375 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 376 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 377 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 378 | FALSE, /* partial_inplace */ |
| d006db6c | 379 | 0, /* src_mask */ |
| f5e87a1d | 380 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 381 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
382 | |
| 383 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 384 | indicate that the branch is expected to be taken. The lower two | |
| 385 | bits must be zero. */ | |
| 386 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 387 | 0, /* rightshift */ | |
| 388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 389 | 16, /* bitsize */ | |
| b34976b6 | 390 | FALSE, /* pc_relative */ |
| 5bd4f169 | 391 | 0, /* bitpos */ |
| b80eed39 | 392 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 393 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 394 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 395 | FALSE, /* partial_inplace */ |
| d006db6c | 396 | 0, /* src_mask */ |
| f5e87a1d | 397 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 398 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
399 | |
| 400 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 401 | indicate that the branch is not expected to be taken. The lower | |
| 402 | two bits must be zero. */ | |
| 403 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 404 | 0, /* rightshift */ | |
| 405 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 406 | 16, /* bitsize */ | |
| b34976b6 | 407 | FALSE, /* pc_relative */ |
| 5bd4f169 | 408 | 0, /* bitpos */ |
| b80eed39 | 409 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 410 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 411 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 412 | FALSE, /* partial_inplace */ |
| d006db6c | 413 | 0, /* src_mask */ |
| f5e87a1d | 414 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 415 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
416 | |
| 417 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 418 | HOWTO (R_PPC64_REL24, /* type */ | |
| 419 | 0, /* rightshift */ | |
| 420 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 421 | 26, /* bitsize */ | |
| b34976b6 | 422 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
423 | 0, /* bitpos */ |
| 424 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 425 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 426 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 427 | FALSE, /* partial_inplace */ |
| d006db6c | 428 | 0, /* src_mask */ |
| f5e87a1d | 429 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 430 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
431 | |
| 432 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 433 | HOWTO (R_PPC64_REL14, /* type */ | |
| 434 | 0, /* rightshift */ | |
| 435 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 436 | 16, /* bitsize */ | |
| b34976b6 | 437 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
438 | 0, /* bitpos */ |
| 439 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 440 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 441 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 442 | FALSE, /* partial_inplace */ |
| d006db6c | 443 | 0, /* src_mask */ |
| f5e87a1d | 444 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 445 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
446 | |
| 447 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 448 | the branch is expected to be taken. The lower two bits must be | |
| 449 | zero. */ | |
| 450 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 451 | 0, /* rightshift */ | |
| 452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 453 | 16, /* bitsize */ | |
| b34976b6 | 454 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
455 | 0, /* bitpos */ |
| 456 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 457 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 458 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 459 | FALSE, /* partial_inplace */ |
| d006db6c | 460 | 0, /* src_mask */ |
| f5e87a1d | 461 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 462 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
463 | |
| 464 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 465 | the branch is not expected to be taken. The lower two bits must | |
| 466 | be zero. */ | |
| 467 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 468 | 0, /* rightshift */ | |
| 469 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 470 | 16, /* bitsize */ | |
| b34976b6 | 471 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
472 | 0, /* bitpos */ |
| 473 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 474 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 475 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 476 | FALSE, /* partial_inplace */ |
| d006db6c | 477 | 0, /* src_mask */ |
| f5e87a1d | 478 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 479 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
480 | |
| 481 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 482 | symbol. */ | |
| 483 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 484 | 0, /* rightshift */ | |
| 485 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 486 | 16, /* bitsize */ | |
| b34976b6 | 487 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
488 | 0, /* bitpos */ |
| 489 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 490 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 491 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 492 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
493 | 0, /* src_mask */ |
| 494 | 0xffff, /* dst_mask */ | |
| b34976b6 | 495 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
496 | |
| 497 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 498 | the symbol. */ | |
| 499 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 500 | 0, /* rightshift */ | |
| 501 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 502 | 16, /* bitsize */ | |
| b34976b6 | 503 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
504 | 0, /* bitpos */ |
| 505 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 506 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 507 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 508 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
509 | 0, /* src_mask */ |
| 510 | 0xffff, /* dst_mask */ | |
| b34976b6 | 511 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
512 | |
| 513 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 514 | the symbol. */ | |
| 515 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 516 | 16, /* rightshift */ | |
| 517 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 518 | 16, /* bitsize */ | |
| b34976b6 | 519 | FALSE, /* pc_relative */ |
| 5bd4f169 | 520 | 0, /* bitpos */ |
| f9c6b907 | 521 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 522 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 523 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 524 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
525 | 0, /* src_mask */ |
| 526 | 0xffff, /* dst_mask */ | |
| b34976b6 | 527 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
528 | |
| 529 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 530 | the symbol. */ | |
| 531 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 532 | 16, /* rightshift */ | |
| 533 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 534 | 16, /* bitsize */ | |
| b34976b6 | 535 | FALSE, /* pc_relative */ |
| 5bd4f169 | 536 | 0, /* bitpos */ |
| f9c6b907 | 537 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 538 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 539 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 540 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
541 | 0, /* src_mask */ |
| 542 | 0xffff, /* dst_mask */ | |
| b34976b6 | 543 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
544 | |
| 545 | /* This is used only by the dynamic linker. The symbol should exist | |
| 546 | both in the object being run and in some shared library. The | |
| 547 | dynamic linker copies the data addressed by the symbol from the | |
| 548 | shared library into the object, because the object being | |
| 549 | run has to have the data at some particular address. */ | |
| 550 | HOWTO (R_PPC64_COPY, /* type */ | |
| 551 | 0, /* rightshift */ | |
| f5e87a1d AM |
552 | 0, /* this one is variable size */ |
| 553 | 0, /* bitsize */ | |
| b34976b6 | 554 | FALSE, /* pc_relative */ |
| 5bd4f169 | 555 | 0, /* bitpos */ |
| f5e87a1d AM |
556 | complain_overflow_dont, /* complain_on_overflow */ |
| 557 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 558 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 559 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
560 | 0, /* src_mask */ |
| 561 | 0, /* dst_mask */ | |
| b34976b6 | 562 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
563 | |
| 564 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 565 | entries. */ | |
| 566 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 567 | 0, /* rightshift */ | |
| 568 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 569 | 64, /* bitsize */ | |
| b34976b6 | 570 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
571 | 0, /* bitpos */ |
| 572 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 573 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 574 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 575 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 576 | 0, /* src_mask */ |
| f5e87a1d | 577 | ONES (64), /* dst_mask */ |
| b34976b6 | 578 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
579 | |
| 580 | /* Created by the link editor. Marks a procedure linkage table | |
| 581 | entry for a symbol. */ | |
| 582 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 583 | 0, /* rightshift */ | |
| 584 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 585 | 0, /* bitsize */ | |
| b34976b6 | 586 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
587 | 0, /* bitpos */ |
| 588 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 589 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 590 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 591 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
592 | 0, /* src_mask */ |
| 593 | 0, /* dst_mask */ | |
| b34976b6 | 594 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
595 | |
| 596 | /* Used only by the dynamic linker. When the object is run, this | |
| 597 | doubleword64 is set to the load address of the object, plus the | |
| 598 | addend. */ | |
| 599 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 600 | 0, /* rightshift */ | |
| 601 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 602 | 64, /* bitsize */ | |
| b34976b6 | 603 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
604 | 0, /* bitpos */ |
| 605 | complain_overflow_dont, /* complain_on_overflow */ | |
| 606 | bfd_elf_generic_reloc, /* special_function */ | |
| 607 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 608 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 609 | 0, /* src_mask */ |
| f5e87a1d | 610 | ONES (64), /* dst_mask */ |
| b34976b6 | 611 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
612 | |
| 613 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 614 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 615 | 0, /* rightshift */ | |
| 616 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 617 | 32, /* bitsize */ | |
| b34976b6 | 618 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
619 | 0, /* bitpos */ |
| 620 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 621 | bfd_elf_generic_reloc, /* special_function */ | |
| 622 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 623 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
624 | 0, /* src_mask */ |
| 625 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 626 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
627 | |
| 628 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 629 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 630 | 0, /* rightshift */ | |
| 631 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 632 | 16, /* bitsize */ | |
| b34976b6 | 633 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
634 | 0, /* bitpos */ |
| 635 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 636 | bfd_elf_generic_reloc, /* special_function */ | |
| 637 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 638 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
639 | 0, /* src_mask */ |
| 640 | 0xffff, /* dst_mask */ | |
| b34976b6 | 641 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
642 | |
| 643 | /* 32-bit PC relative. */ | |
| 644 | HOWTO (R_PPC64_REL32, /* type */ | |
| 645 | 0, /* rightshift */ | |
| 646 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 647 | 32, /* bitsize */ | |
| b34976b6 | 648 | TRUE, /* pc_relative */ |
| 5bd4f169 | 649 | 0, /* bitpos */ |
| 5bd4f169 AM |
650 | complain_overflow_signed, /* complain_on_overflow */ |
| 651 | bfd_elf_generic_reloc, /* special_function */ | |
| 652 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 653 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
654 | 0, /* src_mask */ |
| 655 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 656 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 657 | |
| 10ed1bba | 658 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
659 | HOWTO (R_PPC64_PLT32, /* type */ |
| 660 | 0, /* rightshift */ | |
| 661 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 662 | 32, /* bitsize */ | |
| b34976b6 | 663 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
664 | 0, /* bitpos */ |
| 665 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 666 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 667 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 668 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 669 | 0, /* src_mask */ |
| f5e87a1d | 670 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 671 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
672 | |
| 673 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 674 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 675 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 676 | 0, /* rightshift */ | |
| 677 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 678 | 32, /* bitsize */ | |
| b34976b6 | 679 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
680 | 0, /* bitpos */ |
| 681 | complain_overflow_signed, /* complain_on_overflow */ | |
| 682 | bfd_elf_generic_reloc, /* special_function */ | |
| 683 | "R_PPC64_PLTREL32", /* name */ | |
| b34976b6 | 684 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 685 | 0, /* src_mask */ |
| f5e87a1d | 686 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 687 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
688 | |
| 689 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 690 | the symbol. */ | |
| 691 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 692 | 0, /* rightshift */ | |
| 693 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 694 | 16, /* bitsize */ | |
| b34976b6 | 695 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
696 | 0, /* bitpos */ |
| 697 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 698 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 699 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 700 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
701 | 0, /* src_mask */ |
| 702 | 0xffff, /* dst_mask */ | |
| b34976b6 | 703 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
704 | |
| 705 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 706 | the symbol. */ | |
| 707 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 708 | 16, /* rightshift */ | |
| 709 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 710 | 16, /* bitsize */ | |
| b34976b6 | 711 | FALSE, /* pc_relative */ |
| 5bd4f169 | 712 | 0, /* bitpos */ |
| f9c6b907 | 713 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 714 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 715 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 716 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
717 | 0, /* src_mask */ |
| 718 | 0xffff, /* dst_mask */ | |
| b34976b6 | 719 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
720 | |
| 721 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 722 | the symbol. */ | |
| 723 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 724 | 16, /* rightshift */ | |
| 725 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 726 | 16, /* bitsize */ | |
| b34976b6 | 727 | FALSE, /* pc_relative */ |
| 5bd4f169 | 728 | 0, /* bitpos */ |
| f9c6b907 | 729 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 730 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 731 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 732 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
733 | 0, /* src_mask */ |
| 734 | 0xffff, /* dst_mask */ | |
| b34976b6 | 735 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 736 | |
| c061c2d8 | 737 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
738 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 739 | 0, /* rightshift */ | |
| c061c2d8 AM |
740 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 741 | 16, /* bitsize */ | |
| b34976b6 | 742 | FALSE, /* pc_relative */ |
| 5bd4f169 | 743 | 0, /* bitpos */ |
| b80eed39 | 744 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 745 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 746 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 747 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 748 | 0, /* src_mask */ |
| c061c2d8 | 749 | 0xffff, /* dst_mask */ |
| b34976b6 | 750 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 751 | |
| c061c2d8 | 752 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
753 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 754 | 0, /* rightshift */ | |
| 755 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 756 | 16, /* bitsize */ | |
| b34976b6 | 757 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
758 | 0, /* bitpos */ |
| 759 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 760 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 761 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 762 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
763 | 0, /* src_mask */ |
| 764 | 0xffff, /* dst_mask */ | |
| b34976b6 | 765 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
766 | |
| 767 | /* 16-bit upper half section relative relocation. */ | |
| 768 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 769 | 16, /* rightshift */ | |
| 770 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 771 | 16, /* bitsize */ | |
| b34976b6 | 772 | FALSE, /* pc_relative */ |
| 5bd4f169 | 773 | 0, /* bitpos */ |
| f9c6b907 | 774 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 775 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 776 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 777 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
778 | 0, /* src_mask */ |
| 779 | 0xffff, /* dst_mask */ | |
| b34976b6 | 780 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
781 | |
| 782 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 783 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 784 | 16, /* rightshift */ | |
| 785 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 786 | 16, /* bitsize */ | |
| b34976b6 | 787 | FALSE, /* pc_relative */ |
| 5bd4f169 | 788 | 0, /* bitpos */ |
| f9c6b907 | 789 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 790 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 791 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 792 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
793 | 0, /* src_mask */ |
| 794 | 0xffff, /* dst_mask */ | |
| b34976b6 | 795 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 796 | |
| 04c9666a AM |
797 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 798 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
799 | 2, /* rightshift */ |
| 800 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 801 | 30, /* bitsize */ | |
| b34976b6 | 802 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
803 | 0, /* bitpos */ |
| 804 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 806 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 807 | FALSE, /* partial_inplace */ |
| d006db6c | 808 | 0, /* src_mask */ |
| 5bd4f169 | 809 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 810 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
811 | |
| 812 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 813 | ||
| 814 | /* A standard 64-bit relocation. */ | |
| 815 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 816 | 0, /* rightshift */ | |
| 817 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 818 | 64, /* bitsize */ | |
| b34976b6 | 819 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
820 | 0, /* bitpos */ |
| 821 | complain_overflow_dont, /* complain_on_overflow */ | |
| 822 | bfd_elf_generic_reloc, /* special_function */ | |
| 823 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 824 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 825 | 0, /* src_mask */ |
| f5e87a1d | 826 | ONES (64), /* dst_mask */ |
| b34976b6 | 827 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
828 | |
| 829 | /* The bits 32-47 of an address. */ | |
| 830 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 831 | 32, /* rightshift */ | |
| 832 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 833 | 16, /* bitsize */ | |
| b34976b6 | 834 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
835 | 0, /* bitpos */ |
| 836 | complain_overflow_dont, /* complain_on_overflow */ | |
| 837 | bfd_elf_generic_reloc, /* special_function */ | |
| 838 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 839 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
840 | 0, /* src_mask */ |
| 841 | 0xffff, /* dst_mask */ | |
| b34976b6 | 842 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
843 | |
| 844 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 845 | 16 bits, treated as a signed number, is negative. */ | |
| 846 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 847 | 32, /* rightshift */ | |
| 848 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 849 | 16, /* bitsize */ | |
| b34976b6 | 850 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
851 | 0, /* bitpos */ |
| 852 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 853 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 854 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 855 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
856 | 0, /* src_mask */ |
| 857 | 0xffff, /* dst_mask */ | |
| b34976b6 | 858 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
859 | |
| 860 | /* The bits 48-63 of an address. */ | |
| 861 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 862 | 48, /* rightshift */ | |
| 863 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 864 | 16, /* bitsize */ | |
| b34976b6 | 865 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
866 | 0, /* bitpos */ |
| 867 | complain_overflow_dont, /* complain_on_overflow */ | |
| 868 | bfd_elf_generic_reloc, /* special_function */ | |
| 869 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 870 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
871 | 0, /* src_mask */ |
| 872 | 0xffff, /* dst_mask */ | |
| b34976b6 | 873 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
874 | |
| 875 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 876 | 16 bits, treated as a signed number, is negative. */ | |
| 877 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 878 | 48, /* rightshift */ | |
| 879 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 880 | 16, /* bitsize */ | |
| b34976b6 | 881 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
882 | 0, /* bitpos */ |
| 883 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 884 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 885 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 886 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
887 | 0, /* src_mask */ |
| 888 | 0xffff, /* dst_mask */ | |
| b34976b6 | 889 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
890 | |
| 891 | /* Like ADDR64, but may be unaligned. */ | |
| 892 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 893 | 0, /* rightshift */ | |
| 894 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 895 | 64, /* bitsize */ | |
| b34976b6 | 896 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
897 | 0, /* bitpos */ |
| 898 | complain_overflow_dont, /* complain_on_overflow */ | |
| 899 | bfd_elf_generic_reloc, /* special_function */ | |
| 900 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 901 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 902 | 0, /* src_mask */ |
| f5e87a1d | 903 | ONES (64), /* dst_mask */ |
| b34976b6 | 904 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
905 | |
| 906 | /* 64-bit relative relocation. */ | |
| 907 | HOWTO (R_PPC64_REL64, /* type */ | |
| 908 | 0, /* rightshift */ | |
| 909 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 910 | 64, /* bitsize */ | |
| b34976b6 | 911 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
912 | 0, /* bitpos */ |
| 913 | complain_overflow_dont, /* complain_on_overflow */ | |
| 914 | bfd_elf_generic_reloc, /* special_function */ | |
| 915 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 916 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 917 | 0, /* src_mask */ |
| f5e87a1d | 918 | ONES (64), /* dst_mask */ |
| b34976b6 | 919 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 920 | |
| cedb70c5 | 921 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
922 | HOWTO (R_PPC64_PLT64, /* type */ |
| 923 | 0, /* rightshift */ | |
| 924 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 925 | 64, /* bitsize */ | |
| b34976b6 | 926 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
927 | 0, /* bitpos */ |
| 928 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 929 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 930 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 931 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 932 | 0, /* src_mask */ |
| f5e87a1d | 933 | ONES (64), /* dst_mask */ |
| b34976b6 | 934 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
935 | |
| 936 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 937 | table. */ | |
| 938 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 939 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 940 | 0, /* rightshift */ | |
| 941 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 942 | 64, /* bitsize */ | |
| b34976b6 | 943 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
944 | 0, /* bitpos */ |
| 945 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 946 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 947 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 948 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 949 | 0, /* src_mask */ |
| f5e87a1d | 950 | ONES (64), /* dst_mask */ |
| b34976b6 | 951 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
952 | |
| 953 | /* 16 bit TOC-relative relocation. */ | |
| 954 | ||
| 955 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 956 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 957 | 0, /* rightshift */ | |
| 958 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 959 | 16, /* bitsize */ | |
| b34976b6 | 960 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
961 | 0, /* bitpos */ |
| 962 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 963 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 964 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 965 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
966 | 0, /* src_mask */ |
| 967 | 0xffff, /* dst_mask */ | |
| b34976b6 | 968 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
969 | |
| 970 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 971 | ||
| 972 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 973 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 974 | 0, /* rightshift */ | |
| 975 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 976 | 16, /* bitsize */ | |
| b34976b6 | 977 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
978 | 0, /* bitpos */ |
| 979 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 980 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 981 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 982 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
983 | 0, /* src_mask */ |
| 984 | 0xffff, /* dst_mask */ | |
| b34976b6 | 985 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
986 | |
| 987 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 988 | ||
| 989 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 990 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 991 | 16, /* rightshift */ | |
| 992 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 993 | 16, /* bitsize */ | |
| b34976b6 | 994 | FALSE, /* pc_relative */ |
| 5bd4f169 | 995 | 0, /* bitpos */ |
| f9c6b907 | 996 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 997 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 998 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 999 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1000 | 0, /* src_mask */ |
| 1001 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1002 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1003 | |
| 1004 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1005 | contents of the low 16 bits, treated as a signed number, is | |
| 1006 | negative. */ | |
| 1007 | ||
| 1008 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1009 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1010 | 16, /* rightshift */ | |
| 1011 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1012 | 16, /* bitsize */ | |
| b34976b6 | 1013 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1014 | 0, /* bitpos */ |
| f9c6b907 | 1015 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1016 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1017 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1018 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1019 | 0, /* src_mask */ |
| 1020 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1021 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1022 | |
| 1023 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1024 | ||
| 1025 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1026 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1027 | 0, /* rightshift */ | |
| 1028 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1029 | 64, /* bitsize */ | |
| b34976b6 | 1030 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1031 | 0, /* bitpos */ |
| b80eed39 | 1032 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1033 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1034 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1035 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1036 | 0, /* src_mask */ |
| f5e87a1d | 1037 | ONES (64), /* dst_mask */ |
| b34976b6 | 1038 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1039 | |
| 1040 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1041 | value to relocate may (!) refer to a PLT entry which the link | |
| 1042 | editor (a) may replace with the symbol value. If the link editor | |
| 1043 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1044 | entry and store the address to the new PLT entry in the GOT. | |
| 1045 | This permits lazy resolution of function symbols at run time. | |
| 1046 | The link editor may also skip all of this and just (c) emit a | |
| 1047 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1048 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1049 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1050 | 0, /* rightshift */ | |
| 1051 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1052 | 16, /* bitsize */ | |
| b34976b6 | 1053 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1054 | 0, /* bitpos */ |
| 1055 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1056 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1057 | "R_PPC64_PLTGOT16", /* name */ |
| 1058 | FALSE, /* partial_inplace */ | |
| 1059 | 0, /* src_mask */ | |
| 1060 | 0xffff, /* dst_mask */ | |
| 1061 | FALSE), /* pcrel_offset */ | |
| 1062 | ||
| 1063 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1064 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1065 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1066 | 0, /* rightshift */ | |
| 1067 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1068 | 16, /* bitsize */ | |
| 1069 | FALSE, /* pc_relative */ | |
| 1070 | 0, /* bitpos */ | |
| 1071 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1072 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1073 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1074 | FALSE, /* partial_inplace */ | |
| 1075 | 0, /* src_mask */ | |
| 1076 | 0xffff, /* dst_mask */ | |
| 1077 | FALSE), /* pcrel_offset */ | |
| 1078 | ||
| 1079 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1080 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1081 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1082 | 16, /* rightshift */ | |
| 1083 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1084 | 16, /* bitsize */ | |
| 1085 | FALSE, /* pc_relative */ | |
| 1086 | 0, /* bitpos */ | |
| f9c6b907 | 1087 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1088 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1089 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1090 | FALSE, /* partial_inplace */ | |
| 1091 | 0, /* src_mask */ | |
| 1092 | 0xffff, /* dst_mask */ | |
| 1093 | FALSE), /* pcrel_offset */ | |
| 1094 | ||
| 1095 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1096 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1097 | is negative. */ | |
| 1098 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1099 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1100 | 16, /* rightshift */ | |
| 1101 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1102 | 16, /* bitsize */ | |
| 1103 | FALSE, /* pc_relative */ | |
| 1104 | 0, /* bitpos */ | |
| f9c6b907 | 1105 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1106 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1107 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1108 | FALSE, /* partial_inplace */ | |
| 1109 | 0, /* src_mask */ | |
| 1110 | 0xffff, /* dst_mask */ | |
| 1111 | FALSE), /* pcrel_offset */ | |
| 1112 | ||
| 1113 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1114 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1115 | 0, /* rightshift */ | |
| 1116 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1117 | 16, /* bitsize */ | |
| 1118 | FALSE, /* pc_relative */ | |
| 1119 | 0, /* bitpos */ | |
| b80eed39 | 1120 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1121 | bfd_elf_generic_reloc, /* special_function */ |
| 1122 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1123 | FALSE, /* partial_inplace */ | |
| 1124 | 0, /* src_mask */ | |
| 1125 | 0xfffc, /* dst_mask */ | |
| 1126 | FALSE), /* pcrel_offset */ | |
| 1127 | ||
| 1128 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1129 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1130 | 0, /* rightshift */ | |
| 1131 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1132 | 16, /* bitsize */ | |
| 1133 | FALSE, /* pc_relative */ | |
| 1134 | 0, /* bitpos */ | |
| 1135 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1136 | bfd_elf_generic_reloc, /* special_function */ | |
| 1137 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1138 | FALSE, /* partial_inplace */ | |
| 1139 | 0, /* src_mask */ | |
| 1140 | 0xfffc, /* dst_mask */ | |
| 1141 | FALSE), /* pcrel_offset */ | |
| 1142 | ||
| 1143 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1144 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1145 | 0, /* rightshift */ | |
| 1146 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1147 | 16, /* bitsize */ | |
| 1148 | FALSE, /* pc_relative */ | |
| 1149 | 0, /* bitpos */ | |
| 1150 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1151 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1152 | "R_PPC64_GOT16_DS", /* name */ | |
| 1153 | FALSE, /* partial_inplace */ | |
| 1154 | 0, /* src_mask */ | |
| 1155 | 0xfffc, /* dst_mask */ | |
| 1156 | FALSE), /* pcrel_offset */ | |
| 1157 | ||
| 1158 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1159 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1160 | 0, /* rightshift */ | |
| 1161 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1162 | 16, /* bitsize */ | |
| 1163 | FALSE, /* pc_relative */ | |
| 1164 | 0, /* bitpos */ | |
| 1165 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1166 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1167 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1168 | FALSE, /* partial_inplace */ | |
| 1169 | 0, /* src_mask */ | |
| 1170 | 0xfffc, /* dst_mask */ | |
| 1171 | FALSE), /* pcrel_offset */ | |
| 1172 | ||
| 1173 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1174 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1175 | 0, /* rightshift */ | |
| 1176 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1177 | 16, /* bitsize */ | |
| 1178 | FALSE, /* pc_relative */ | |
| 1179 | 0, /* bitpos */ | |
| 1180 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1181 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1182 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1183 | FALSE, /* partial_inplace */ | |
| 1184 | 0, /* src_mask */ | |
| 1185 | 0xfffc, /* dst_mask */ | |
| 1186 | FALSE), /* pcrel_offset */ | |
| 1187 | ||
| 1188 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1189 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1190 | 0, /* rightshift */ | |
| 1191 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1192 | 16, /* bitsize */ | |
| 1193 | FALSE, /* pc_relative */ | |
| 1194 | 0, /* bitpos */ | |
| b80eed39 | 1195 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1196 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1197 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1198 | FALSE, /* partial_inplace */ | |
| 1199 | 0, /* src_mask */ | |
| 1200 | 0xfffc, /* dst_mask */ | |
| 1201 | FALSE), /* pcrel_offset */ | |
| 1202 | ||
| 1203 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1204 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1205 | 0, /* rightshift */ | |
| 1206 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1207 | 16, /* bitsize */ | |
| 1208 | FALSE, /* pc_relative */ | |
| 1209 | 0, /* bitpos */ | |
| 1210 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1211 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1212 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1213 | FALSE, /* partial_inplace */ | |
| 1214 | 0, /* src_mask */ | |
| 1215 | 0xfffc, /* dst_mask */ | |
| 1216 | FALSE), /* pcrel_offset */ | |
| 1217 | ||
| 1218 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1219 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1220 | 0, /* rightshift */ | |
| 1221 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1222 | 16, /* bitsize */ | |
| 1223 | FALSE, /* pc_relative */ | |
| 1224 | 0, /* bitpos */ | |
| 1225 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1226 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1227 | "R_PPC64_TOC16_DS", /* name */ | |
| 1228 | FALSE, /* partial_inplace */ | |
| 1229 | 0, /* src_mask */ | |
| 1230 | 0xfffc, /* dst_mask */ | |
| 1231 | FALSE), /* pcrel_offset */ | |
| 1232 | ||
| 1233 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1234 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1235 | 0, /* rightshift */ | |
| 1236 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1237 | 16, /* bitsize */ | |
| 1238 | FALSE, /* pc_relative */ | |
| 1239 | 0, /* bitpos */ | |
| 1240 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1241 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1242 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1243 | FALSE, /* partial_inplace */ | |
| 1244 | 0, /* src_mask */ | |
| 1245 | 0xfffc, /* dst_mask */ | |
| 1246 | FALSE), /* pcrel_offset */ | |
| 1247 | ||
| 1248 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1249 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1250 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1251 | 0, /* rightshift */ |
| 1252 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1253 | 16, /* bitsize */ | |
| 1254 | FALSE, /* pc_relative */ | |
| 1255 | 0, /* bitpos */ | |
| 1256 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1257 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1258 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1259 | FALSE, /* partial_inplace */ | |
| 1260 | 0, /* src_mask */ | |
| 1261 | 0xfffc, /* dst_mask */ | |
| 1262 | FALSE), /* pcrel_offset */ | |
| 1263 | ||
| 1264 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1265 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1266 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1267 | 0, /* rightshift */ | |
| 1268 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1269 | 16, /* bitsize */ | |
| 1270 | FALSE, /* pc_relative */ | |
| 1271 | 0, /* bitpos */ | |
| 1272 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1273 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1274 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1275 | FALSE, /* partial_inplace */ | |
| 1276 | 0, /* src_mask */ | |
| 1277 | 0xfffc, /* dst_mask */ | |
| 1278 | FALSE), /* pcrel_offset */ | |
| 1279 | ||
| 727fc41e | 1280 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1281 | HOWTO (R_PPC64_TLS, |
| 1282 | 0, /* rightshift */ | |
| 1283 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1284 | 32, /* bitsize */ | |
| 1285 | FALSE, /* pc_relative */ | |
| 1286 | 0, /* bitpos */ | |
| 1287 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1288 | bfd_elf_generic_reloc, /* special_function */ | |
| 1289 | "R_PPC64_TLS", /* name */ | |
| 1290 | FALSE, /* partial_inplace */ | |
| 1291 | 0, /* src_mask */ | |
| 1292 | 0, /* dst_mask */ | |
| 1293 | FALSE), /* pcrel_offset */ | |
| 1294 | ||
| 727fc41e AM |
1295 | HOWTO (R_PPC64_TLSGD, |
| 1296 | 0, /* rightshift */ | |
| 1297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1298 | 32, /* bitsize */ | |
| 1299 | FALSE, /* pc_relative */ | |
| 1300 | 0, /* bitpos */ | |
| 1301 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1302 | bfd_elf_generic_reloc, /* special_function */ | |
| 1303 | "R_PPC64_TLSGD", /* name */ | |
| 1304 | FALSE, /* partial_inplace */ | |
| 1305 | 0, /* src_mask */ | |
| 1306 | 0, /* dst_mask */ | |
| 1307 | FALSE), /* pcrel_offset */ | |
| 1308 | ||
| 1309 | HOWTO (R_PPC64_TLSLD, | |
| 1310 | 0, /* rightshift */ | |
| 1311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1312 | 32, /* bitsize */ | |
| 1313 | FALSE, /* pc_relative */ | |
| 1314 | 0, /* bitpos */ | |
| 1315 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1316 | bfd_elf_generic_reloc, /* special_function */ | |
| 1317 | "R_PPC64_TLSLD", /* name */ | |
| 1318 | FALSE, /* partial_inplace */ | |
| 1319 | 0, /* src_mask */ | |
| 1320 | 0, /* dst_mask */ | |
| 1321 | FALSE), /* pcrel_offset */ | |
| 1322 | ||
| 3b421ab3 AM |
1323 | HOWTO (R_PPC64_TOCSAVE, |
| 1324 | 0, /* rightshift */ | |
| 1325 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1326 | 32, /* bitsize */ | |
| 1327 | FALSE, /* pc_relative */ | |
| 1328 | 0, /* bitpos */ | |
| 1329 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1330 | bfd_elf_generic_reloc, /* special_function */ | |
| 1331 | "R_PPC64_TOCSAVE", /* name */ | |
| 1332 | FALSE, /* partial_inplace */ | |
| 1333 | 0, /* src_mask */ | |
| 1334 | 0, /* dst_mask */ | |
| 1335 | FALSE), /* pcrel_offset */ | |
| 1336 | ||
| 411e1bfb AM |
1337 | /* Computes the load module index of the load module that contains the |
| 1338 | definition of its TLS sym. */ | |
| 1339 | HOWTO (R_PPC64_DTPMOD64, | |
| 1340 | 0, /* rightshift */ | |
| 1341 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1342 | 64, /* bitsize */ | |
| 1343 | FALSE, /* pc_relative */ | |
| 1344 | 0, /* bitpos */ | |
| 1345 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1346 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1347 | "R_PPC64_DTPMOD64", /* name */ | |
| 1348 | FALSE, /* partial_inplace */ | |
| 1349 | 0, /* src_mask */ | |
| 1350 | ONES (64), /* dst_mask */ | |
| 1351 | FALSE), /* pcrel_offset */ | |
| 1352 | ||
| 1353 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1354 | of sym+add and the base address of the thread-local storage block that | |
| 1355 | contains the definition of sym, minus 0x8000. */ | |
| 1356 | HOWTO (R_PPC64_DTPREL64, | |
| 1357 | 0, /* rightshift */ | |
| 1358 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1359 | 64, /* bitsize */ | |
| 1360 | FALSE, /* pc_relative */ | |
| 1361 | 0, /* bitpos */ | |
| 1362 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1363 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1364 | "R_PPC64_DTPREL64", /* name */ | |
| 1365 | FALSE, /* partial_inplace */ | |
| 1366 | 0, /* src_mask */ | |
| 1367 | ONES (64), /* dst_mask */ | |
| 1368 | FALSE), /* pcrel_offset */ | |
| 1369 | ||
| 1370 | /* A 16 bit dtprel reloc. */ | |
| 1371 | HOWTO (R_PPC64_DTPREL16, | |
| 1372 | 0, /* rightshift */ | |
| 1373 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1374 | 16, /* bitsize */ | |
| 1375 | FALSE, /* pc_relative */ | |
| 1376 | 0, /* bitpos */ | |
| 1377 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1378 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1379 | "R_PPC64_DTPREL16", /* name */ | |
| 1380 | FALSE, /* partial_inplace */ | |
| 1381 | 0, /* src_mask */ | |
| 1382 | 0xffff, /* dst_mask */ | |
| 1383 | FALSE), /* pcrel_offset */ | |
| 1384 | ||
| 1385 | /* Like DTPREL16, but no overflow. */ | |
| 1386 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1387 | 0, /* rightshift */ | |
| 1388 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1389 | 16, /* bitsize */ | |
| 1390 | FALSE, /* pc_relative */ | |
| 1391 | 0, /* bitpos */ | |
| 1392 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1393 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1394 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1395 | FALSE, /* partial_inplace */ | |
| 1396 | 0, /* src_mask */ | |
| 1397 | 0xffff, /* dst_mask */ | |
| 1398 | FALSE), /* pcrel_offset */ | |
| 1399 | ||
| 1400 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1401 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1402 | 16, /* rightshift */ | |
| 1403 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1404 | 16, /* bitsize */ | |
| 1405 | FALSE, /* pc_relative */ | |
| 1406 | 0, /* bitpos */ | |
| f9c6b907 | 1407 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1408 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1409 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1410 | FALSE, /* partial_inplace */ | |
| 1411 | 0, /* src_mask */ | |
| 1412 | 0xffff, /* dst_mask */ | |
| 1413 | FALSE), /* pcrel_offset */ | |
| 1414 | ||
| 1415 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1416 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1417 | 16, /* rightshift */ | |
| 1418 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1419 | 16, /* bitsize */ | |
| 1420 | FALSE, /* pc_relative */ | |
| 1421 | 0, /* bitpos */ | |
| f9c6b907 | 1422 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1423 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1424 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1425 | FALSE, /* partial_inplace */ | |
| 1426 | 0, /* src_mask */ | |
| 1427 | 0xffff, /* dst_mask */ | |
| 1428 | FALSE), /* pcrel_offset */ | |
| 1429 | ||
| 1430 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1431 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1432 | 32, /* rightshift */ | |
| 1433 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1434 | 16, /* bitsize */ | |
| 1435 | FALSE, /* pc_relative */ | |
| 1436 | 0, /* bitpos */ | |
| 1437 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1438 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1439 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1440 | FALSE, /* partial_inplace */ | |
| 1441 | 0, /* src_mask */ | |
| 1442 | 0xffff, /* dst_mask */ | |
| 1443 | FALSE), /* pcrel_offset */ | |
| 1444 | ||
| 1445 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1446 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1447 | 32, /* rightshift */ | |
| 1448 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1449 | 16, /* bitsize */ | |
| 1450 | FALSE, /* pc_relative */ | |
| 1451 | 0, /* bitpos */ | |
| 1452 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1453 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1454 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1455 | FALSE, /* partial_inplace */ | |
| 1456 | 0, /* src_mask */ | |
| 1457 | 0xffff, /* dst_mask */ | |
| 1458 | FALSE), /* pcrel_offset */ | |
| 1459 | ||
| 1460 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1461 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1462 | 48, /* rightshift */ | |
| 1463 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1464 | 16, /* bitsize */ | |
| 1465 | FALSE, /* pc_relative */ | |
| 1466 | 0, /* bitpos */ | |
| 1467 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1468 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1469 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1470 | FALSE, /* partial_inplace */ | |
| 1471 | 0, /* src_mask */ | |
| 1472 | 0xffff, /* dst_mask */ | |
| 1473 | FALSE), /* pcrel_offset */ | |
| 1474 | ||
| 1475 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1476 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1477 | 48, /* rightshift */ | |
| 1478 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1479 | 16, /* bitsize */ | |
| 1480 | FALSE, /* pc_relative */ | |
| 1481 | 0, /* bitpos */ | |
| 1482 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1483 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1484 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1485 | FALSE, /* partial_inplace */ | |
| 1486 | 0, /* src_mask */ | |
| 1487 | 0xffff, /* dst_mask */ | |
| 1488 | FALSE), /* pcrel_offset */ | |
| 1489 | ||
| 1490 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1491 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1492 | 0, /* rightshift */ | |
| 1493 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1494 | 16, /* bitsize */ | |
| 1495 | FALSE, /* pc_relative */ | |
| 1496 | 0, /* bitpos */ | |
| 1497 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1498 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1499 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1500 | FALSE, /* partial_inplace */ | |
| 1501 | 0, /* src_mask */ | |
| 1502 | 0xfffc, /* dst_mask */ | |
| 1503 | FALSE), /* pcrel_offset */ | |
| 1504 | ||
| 1505 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1506 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1507 | 0, /* rightshift */ | |
| 1508 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1509 | 16, /* bitsize */ | |
| 1510 | FALSE, /* pc_relative */ | |
| 1511 | 0, /* bitpos */ | |
| 1512 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1513 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1514 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1515 | FALSE, /* partial_inplace */ | |
| 1516 | 0, /* src_mask */ | |
| 1517 | 0xfffc, /* dst_mask */ | |
| 1518 | FALSE), /* pcrel_offset */ | |
| 1519 | ||
| 1520 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1521 | sym+add and the value of the thread pointer (r13). */ | |
| 1522 | HOWTO (R_PPC64_TPREL64, | |
| 1523 | 0, /* rightshift */ | |
| 1524 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1525 | 64, /* bitsize */ | |
| 1526 | FALSE, /* pc_relative */ | |
| 1527 | 0, /* bitpos */ | |
| 1528 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1529 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1530 | "R_PPC64_TPREL64", /* name */ | |
| 1531 | FALSE, /* partial_inplace */ | |
| 1532 | 0, /* src_mask */ | |
| 1533 | ONES (64), /* dst_mask */ | |
| 1534 | FALSE), /* pcrel_offset */ | |
| 1535 | ||
| 1536 | /* A 16 bit tprel reloc. */ | |
| 1537 | HOWTO (R_PPC64_TPREL16, | |
| 1538 | 0, /* rightshift */ | |
| 1539 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1540 | 16, /* bitsize */ | |
| 1541 | FALSE, /* pc_relative */ | |
| 1542 | 0, /* bitpos */ | |
| 1543 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1544 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1545 | "R_PPC64_TPREL16", /* name */ | |
| 1546 | FALSE, /* partial_inplace */ | |
| 1547 | 0, /* src_mask */ | |
| 1548 | 0xffff, /* dst_mask */ | |
| 1549 | FALSE), /* pcrel_offset */ | |
| 1550 | ||
| 1551 | /* Like TPREL16, but no overflow. */ | |
| 1552 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1553 | 0, /* rightshift */ | |
| 1554 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1555 | 16, /* bitsize */ | |
| 1556 | FALSE, /* pc_relative */ | |
| 1557 | 0, /* bitpos */ | |
| 1558 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1559 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1560 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1561 | FALSE, /* partial_inplace */ | |
| 1562 | 0, /* src_mask */ | |
| 1563 | 0xffff, /* dst_mask */ | |
| 1564 | FALSE), /* pcrel_offset */ | |
| 1565 | ||
| 1566 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1567 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1568 | 16, /* rightshift */ | |
| 1569 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1570 | 16, /* bitsize */ | |
| 1571 | FALSE, /* pc_relative */ | |
| 1572 | 0, /* bitpos */ | |
| f9c6b907 | 1573 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1574 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1575 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1576 | FALSE, /* partial_inplace */ | |
| 1577 | 0, /* src_mask */ | |
| 1578 | 0xffff, /* dst_mask */ | |
| 1579 | FALSE), /* pcrel_offset */ | |
| 1580 | ||
| 1581 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1582 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1583 | 16, /* rightshift */ | |
| 1584 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1585 | 16, /* bitsize */ | |
| 1586 | FALSE, /* pc_relative */ | |
| 1587 | 0, /* bitpos */ | |
| f9c6b907 | 1588 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1589 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1590 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1591 | FALSE, /* partial_inplace */ | |
| 1592 | 0, /* src_mask */ | |
| 1593 | 0xffff, /* dst_mask */ | |
| 1594 | FALSE), /* pcrel_offset */ | |
| 1595 | ||
| 1596 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1597 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1598 | 32, /* rightshift */ | |
| 1599 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1600 | 16, /* bitsize */ | |
| 1601 | FALSE, /* pc_relative */ | |
| 1602 | 0, /* bitpos */ | |
| 1603 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1604 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1605 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1606 | FALSE, /* partial_inplace */ | |
| 1607 | 0, /* src_mask */ | |
| 1608 | 0xffff, /* dst_mask */ | |
| 1609 | FALSE), /* pcrel_offset */ | |
| 1610 | ||
| 1611 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1612 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1613 | 32, /* rightshift */ | |
| 1614 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1615 | 16, /* bitsize */ | |
| 1616 | FALSE, /* pc_relative */ | |
| 1617 | 0, /* bitpos */ | |
| 1618 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1619 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1620 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1621 | FALSE, /* partial_inplace */ | |
| 1622 | 0, /* src_mask */ | |
| 1623 | 0xffff, /* dst_mask */ | |
| 1624 | FALSE), /* pcrel_offset */ | |
| 1625 | ||
| 1626 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1627 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1628 | 48, /* rightshift */ | |
| 1629 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1630 | 16, /* bitsize */ | |
| 1631 | FALSE, /* pc_relative */ | |
| 1632 | 0, /* bitpos */ | |
| 1633 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1634 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1635 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1636 | FALSE, /* partial_inplace */ | |
| 1637 | 0, /* src_mask */ | |
| 1638 | 0xffff, /* dst_mask */ | |
| 1639 | FALSE), /* pcrel_offset */ | |
| 1640 | ||
| 1641 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1642 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1643 | 48, /* rightshift */ | |
| 1644 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1645 | 16, /* bitsize */ | |
| 1646 | FALSE, /* pc_relative */ | |
| 1647 | 0, /* bitpos */ | |
| 1648 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1649 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1650 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1651 | FALSE, /* partial_inplace */ | |
| 1652 | 0, /* src_mask */ | |
| 1653 | 0xffff, /* dst_mask */ | |
| 1654 | FALSE), /* pcrel_offset */ | |
| 1655 | ||
| 1656 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1657 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1658 | 0, /* rightshift */ | |
| 1659 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1660 | 16, /* bitsize */ | |
| 1661 | FALSE, /* pc_relative */ | |
| 1662 | 0, /* bitpos */ | |
| 1663 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1664 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1665 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1666 | FALSE, /* partial_inplace */ | |
| 1667 | 0, /* src_mask */ | |
| 1668 | 0xfffc, /* dst_mask */ | |
| 1669 | FALSE), /* pcrel_offset */ | |
| 1670 | ||
| 1671 | /* Like TPREL16_DS, but no overflow. */ | |
| 1672 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1673 | 0, /* rightshift */ | |
| 1674 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1675 | 16, /* bitsize */ | |
| 1676 | FALSE, /* pc_relative */ | |
| 1677 | 0, /* bitpos */ | |
| 1678 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1679 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1680 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1681 | FALSE, /* partial_inplace */ | |
| 1682 | 0, /* src_mask */ | |
| 1683 | 0xfffc, /* dst_mask */ | |
| 1684 | FALSE), /* pcrel_offset */ | |
| 1685 | ||
| 1686 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1687 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1688 | to the first entry relative to the TOC base (r2). */ | |
| 1689 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1690 | 0, /* rightshift */ | |
| 1691 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1692 | 16, /* bitsize */ | |
| 1693 | FALSE, /* pc_relative */ | |
| 1694 | 0, /* bitpos */ | |
| 1695 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1696 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1697 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1698 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1699 | 0, /* src_mask */ |
| 1700 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1701 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1702 | |
| 411e1bfb AM |
1703 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1704 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1705 | 0, /* rightshift */ |
| 1706 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1707 | 16, /* bitsize */ | |
| b34976b6 | 1708 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1709 | 0, /* bitpos */ |
| 1710 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1711 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1712 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1713 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1714 | 0, /* src_mask */ |
| 1715 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1716 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1717 | |
| 411e1bfb AM |
1718 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1719 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1720 | 16, /* rightshift */ |
| 1721 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1722 | 16, /* bitsize */ | |
| b34976b6 | 1723 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1724 | 0, /* bitpos */ |
| f9c6b907 | 1725 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1726 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1727 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1728 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1729 | 0, /* src_mask */ |
| 1730 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1731 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1732 | |
| 411e1bfb AM |
1733 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1734 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1735 | 16, /* rightshift */ |
| 1736 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1737 | 16, /* bitsize */ | |
| b34976b6 | 1738 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1739 | 0, /* bitpos */ |
| f9c6b907 | 1740 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1741 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1742 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1743 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1744 | 0, /* src_mask */ |
| 1745 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1746 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1747 | |
| 411e1bfb AM |
1748 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1749 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1750 | first entry relative to the TOC base (r2). */ | |
| 1751 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1752 | 0, /* rightshift */ |
| 1753 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1754 | 16, /* bitsize */ | |
| b34976b6 | 1755 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1756 | 0, /* bitpos */ |
| 411e1bfb AM |
1757 | complain_overflow_signed, /* complain_on_overflow */ |
| 1758 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1759 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1760 | FALSE, /* partial_inplace */ |
| d006db6c | 1761 | 0, /* src_mask */ |
| 411e1bfb | 1762 | 0xffff, /* dst_mask */ |
| b34976b6 | 1763 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1764 | |
| 411e1bfb AM |
1765 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1766 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1767 | 0, /* rightshift */ |
| 1768 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1769 | 16, /* bitsize */ | |
| b34976b6 | 1770 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1771 | 0, /* bitpos */ |
| 411e1bfb AM |
1772 | complain_overflow_dont, /* complain_on_overflow */ |
| 1773 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1774 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1775 | FALSE, /* partial_inplace */ |
| d006db6c | 1776 | 0, /* src_mask */ |
| 411e1bfb | 1777 | 0xffff, /* dst_mask */ |
| b34976b6 | 1778 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1779 | |
| 411e1bfb AM |
1780 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1781 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1782 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1784 | 16, /* bitsize */ | |
| b34976b6 | 1785 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1786 | 0, /* bitpos */ |
| f9c6b907 | 1787 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1788 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1789 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1790 | FALSE, /* partial_inplace */ |
| d006db6c | 1791 | 0, /* src_mask */ |
| 411e1bfb | 1792 | 0xffff, /* dst_mask */ |
| b34976b6 | 1793 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1794 | |
| 411e1bfb AM |
1795 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1796 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1797 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1799 | 16, /* bitsize */ | |
| b34976b6 | 1800 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1801 | 0, /* bitpos */ |
| f9c6b907 | 1802 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1803 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1804 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1805 | FALSE, /* partial_inplace */ |
| d006db6c | 1806 | 0, /* src_mask */ |
| 411e1bfb | 1807 | 0xffff, /* dst_mask */ |
| b34976b6 | 1808 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1809 | |
| 411e1bfb AM |
1810 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1811 | the offset to the entry relative to the TOC base (r2). */ | |
| 1812 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1813 | 0, /* rightshift */ |
| 1814 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1815 | 16, /* bitsize */ | |
| b34976b6 | 1816 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1817 | 0, /* bitpos */ |
| 411e1bfb | 1818 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1819 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1820 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1821 | FALSE, /* partial_inplace */ |
| d006db6c | 1822 | 0, /* src_mask */ |
| 5bd4f169 | 1823 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1824 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1825 | |
| 411e1bfb AM |
1826 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1827 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1828 | 0, /* rightshift */ |
| c061c2d8 AM |
1829 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1830 | 16, /* bitsize */ | |
| b34976b6 | 1831 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1832 | 0, /* bitpos */ |
| 411e1bfb AM |
1833 | complain_overflow_dont, /* complain_on_overflow */ |
| 1834 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1835 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1836 | FALSE, /* partial_inplace */ |
| d006db6c | 1837 | 0, /* src_mask */ |
| c061c2d8 | 1838 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1839 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1840 | |
| 411e1bfb AM |
1841 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1842 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1843 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1844 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1845 | 16, /* bitsize */ | |
| b34976b6 | 1846 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1847 | 0, /* bitpos */ |
| f9c6b907 | 1848 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1849 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1850 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1851 | FALSE, /* partial_inplace */ |
| d006db6c | 1852 | 0, /* src_mask */ |
| 411e1bfb | 1853 | 0xffff, /* dst_mask */ |
| b34976b6 | 1854 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1855 | |
| 411e1bfb AM |
1856 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1857 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1858 | 16, /* rightshift */ | |
| 1859 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1860 | 16, /* bitsize */ | |
| 1861 | FALSE, /* pc_relative */ | |
| 1862 | 0, /* bitpos */ | |
| f9c6b907 | 1863 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1864 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1865 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1866 | FALSE, /* partial_inplace */ | |
| 1867 | 0, /* src_mask */ | |
| 1868 | 0xffff, /* dst_mask */ | |
| 1869 | FALSE), /* pcrel_offset */ | |
| 1870 | ||
| 1871 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1872 | offset to the entry relative to the TOC base (r2). */ | |
| 1873 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1874 | 0, /* rightshift */ |
| 1875 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1876 | 16, /* bitsize */ | |
| b34976b6 | 1877 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1878 | 0, /* bitpos */ |
| 1879 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1880 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1881 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1882 | FALSE, /* partial_inplace */ |
| d006db6c | 1883 | 0, /* src_mask */ |
| ad8e1ba5 | 1884 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1885 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1886 | |
| 411e1bfb AM |
1887 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1888 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1889 | 0, /* rightshift */ |
| 1890 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1891 | 16, /* bitsize */ | |
| b34976b6 | 1892 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1893 | 0, /* bitpos */ |
| 1894 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1895 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1896 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1897 | FALSE, /* partial_inplace */ |
| d006db6c | 1898 | 0, /* src_mask */ |
| ad8e1ba5 | 1899 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1900 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1901 | |
| 411e1bfb AM |
1902 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1903 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1904 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1905 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1906 | 16, /* bitsize */ | |
| b34976b6 | 1907 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1908 | 0, /* bitpos */ |
| f9c6b907 | 1909 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1910 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1911 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1912 | FALSE, /* partial_inplace */ |
| d006db6c | 1913 | 0, /* src_mask */ |
| 411e1bfb | 1914 | 0xffff, /* dst_mask */ |
| b34976b6 | 1915 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1916 | |
| 411e1bfb AM |
1917 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1918 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1919 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1920 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1921 | 16, /* bitsize */ | |
| b34976b6 | 1922 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1923 | 0, /* bitpos */ |
| f9c6b907 | 1924 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1925 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1926 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1927 | FALSE, /* partial_inplace */ |
| d006db6c | 1928 | 0, /* src_mask */ |
| 411e1bfb | 1929 | 0xffff, /* dst_mask */ |
| b34976b6 | 1930 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1931 | |
| 25f23106 AM |
1932 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1933 | 0, /* rightshift */ | |
| 1934 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1935 | 0, /* bitsize */ | |
| 1936 | FALSE, /* pc_relative */ | |
| 1937 | 0, /* bitpos */ | |
| 1938 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1939 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1940 | "R_PPC64_JMP_IREL", /* name */ | |
| 1941 | FALSE, /* partial_inplace */ | |
| 1942 | 0, /* src_mask */ | |
| 1943 | 0, /* dst_mask */ | |
| 1944 | FALSE), /* pcrel_offset */ | |
| 1945 | ||
| e054468f AM |
1946 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1947 | 0, /* rightshift */ | |
| 1948 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1949 | 64, /* bitsize */ | |
| 1950 | FALSE, /* pc_relative */ | |
| 1951 | 0, /* bitpos */ | |
| 1952 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1953 | bfd_elf_generic_reloc, /* special_function */ | |
| 1954 | "R_PPC64_IRELATIVE", /* name */ | |
| 1955 | FALSE, /* partial_inplace */ | |
| 1956 | 0, /* src_mask */ | |
| 1957 | ONES (64), /* dst_mask */ | |
| 1958 | FALSE), /* pcrel_offset */ | |
| 1959 | ||
| 25f23106 AM |
1960 | /* A 16 bit relative relocation. */ |
| 1961 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1962 | 0, /* rightshift */ | |
| 1963 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1964 | 16, /* bitsize */ | |
| 1965 | TRUE, /* pc_relative */ | |
| 1966 | 0, /* bitpos */ | |
| b80eed39 | 1967 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1968 | bfd_elf_generic_reloc, /* special_function */ |
| 1969 | "R_PPC64_REL16", /* name */ | |
| 1970 | FALSE, /* partial_inplace */ | |
| 1971 | 0, /* src_mask */ | |
| 1972 | 0xffff, /* dst_mask */ | |
| 1973 | TRUE), /* pcrel_offset */ | |
| 1974 | ||
| 1975 | /* A 16 bit relative relocation without overflow. */ | |
| 1976 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1977 | 0, /* rightshift */ | |
| 1978 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1979 | 16, /* bitsize */ | |
| 1980 | TRUE, /* pc_relative */ | |
| 1981 | 0, /* bitpos */ | |
| 1982 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1983 | bfd_elf_generic_reloc, /* special_function */ | |
| 1984 | "R_PPC64_REL16_LO", /* name */ | |
| 1985 | FALSE, /* partial_inplace */ | |
| 1986 | 0, /* src_mask */ | |
| 1987 | 0xffff, /* dst_mask */ | |
| 1988 | TRUE), /* pcrel_offset */ | |
| 1989 | ||
| 1990 | /* The high order 16 bits of a relative address. */ | |
| 1991 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 1992 | 16, /* rightshift */ | |
| 1993 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1994 | 16, /* bitsize */ | |
| 1995 | TRUE, /* pc_relative */ | |
| 1996 | 0, /* bitpos */ | |
| f9c6b907 | 1997 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1998 | bfd_elf_generic_reloc, /* special_function */ |
| 1999 | "R_PPC64_REL16_HI", /* name */ | |
| 2000 | FALSE, /* partial_inplace */ | |
| 2001 | 0, /* src_mask */ | |
| 2002 | 0xffff, /* dst_mask */ | |
| 2003 | TRUE), /* pcrel_offset */ | |
| 2004 | ||
| 2005 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2006 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2007 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2008 | 16, /* rightshift */ | |
| 2009 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2010 | 16, /* bitsize */ | |
| 2011 | TRUE, /* pc_relative */ | |
| 2012 | 0, /* bitpos */ | |
| f9c6b907 | 2013 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2014 | ppc64_elf_ha_reloc, /* special_function */ |
| 2015 | "R_PPC64_REL16_HA", /* name */ | |
| 2016 | FALSE, /* partial_inplace */ | |
| 2017 | 0, /* src_mask */ | |
| 2018 | 0xffff, /* dst_mask */ | |
| 2019 | TRUE), /* pcrel_offset */ | |
| 2020 | ||
| f9c6b907 AM |
2021 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2022 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2023 | 16, /* rightshift */ | |
| 2024 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2025 | 16, /* bitsize */ | |
| 2026 | FALSE, /* pc_relative */ | |
| 2027 | 0, /* bitpos */ | |
| 2028 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2029 | bfd_elf_generic_reloc, /* special_function */ | |
| 2030 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2031 | FALSE, /* partial_inplace */ | |
| 2032 | 0, /* src_mask */ | |
| 2033 | 0xffff, /* dst_mask */ | |
| 2034 | FALSE), /* pcrel_offset */ | |
| 2035 | ||
| 2036 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2037 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2038 | 16, /* rightshift */ | |
| 2039 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2040 | 16, /* bitsize */ | |
| 2041 | FALSE, /* pc_relative */ | |
| 2042 | 0, /* bitpos */ | |
| 2043 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2044 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2045 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2046 | FALSE, /* partial_inplace */ | |
| 2047 | 0, /* src_mask */ | |
| 2048 | 0xffff, /* dst_mask */ | |
| 2049 | FALSE), /* pcrel_offset */ | |
| 2050 | ||
| 2051 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2052 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2053 | 16, /* rightshift */ | |
| 2054 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2055 | 16, /* bitsize */ | |
| 2056 | FALSE, /* pc_relative */ | |
| 2057 | 0, /* bitpos */ | |
| 2058 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2059 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2060 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2061 | FALSE, /* partial_inplace */ | |
| 2062 | 0, /* src_mask */ | |
| 2063 | 0xffff, /* dst_mask */ | |
| 2064 | FALSE), /* pcrel_offset */ | |
| 2065 | ||
| 2066 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2067 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2068 | 16, /* rightshift */ | |
| 2069 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2070 | 16, /* bitsize */ | |
| 2071 | FALSE, /* pc_relative */ | |
| 2072 | 0, /* bitpos */ | |
| 2073 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2074 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2075 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2076 | FALSE, /* partial_inplace */ | |
| 2077 | 0, /* src_mask */ | |
| 2078 | 0xffff, /* dst_mask */ | |
| 2079 | FALSE), /* pcrel_offset */ | |
| 2080 | ||
| 2081 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2082 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2083 | 16, /* rightshift */ | |
| 2084 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2085 | 16, /* bitsize */ | |
| 2086 | FALSE, /* pc_relative */ | |
| 2087 | 0, /* bitpos */ | |
| 2088 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2089 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2090 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2091 | FALSE, /* partial_inplace */ | |
| 2092 | 0, /* src_mask */ | |
| 2093 | 0xffff, /* dst_mask */ | |
| 2094 | FALSE), /* pcrel_offset */ | |
| 2095 | ||
| 2096 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2097 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2098 | 16, /* rightshift */ | |
| 2099 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2100 | 16, /* bitsize */ | |
| 2101 | FALSE, /* pc_relative */ | |
| 2102 | 0, /* bitpos */ | |
| 2103 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2104 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2105 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2106 | FALSE, /* partial_inplace */ | |
| 2107 | 0, /* src_mask */ | |
| 2108 | 0xffff, /* dst_mask */ | |
| 2109 | FALSE), /* pcrel_offset */ | |
| 2110 | ||
| 45965137 AM |
2111 | /* Like ADDR64, but use local entry point of function. */ |
| 2112 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2113 | 0, /* rightshift */ | |
| 2114 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2115 | 64, /* bitsize */ | |
| 2116 | FALSE, /* pc_relative */ | |
| 2117 | 0, /* bitpos */ | |
| 2118 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2119 | bfd_elf_generic_reloc, /* special_function */ | |
| 2120 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2121 | FALSE, /* partial_inplace */ | |
| 2122 | 0, /* src_mask */ | |
| 2123 | ONES (64), /* dst_mask */ | |
| 2124 | FALSE), /* pcrel_offset */ | |
| 2125 | ||
| 5bd4f169 AM |
2126 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2127 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2128 | 0, /* rightshift */ | |
| 2129 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2130 | 0, /* bitsize */ | |
| b34976b6 | 2131 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2132 | 0, /* bitpos */ |
| 2133 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2134 | NULL, /* special_function */ | |
| 2135 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2136 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2137 | 0, /* src_mask */ |
| 2138 | 0, /* dst_mask */ | |
| b34976b6 | 2139 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2140 | |
| 2141 | /* GNU extension to record C++ vtable member usage. */ | |
| 2142 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2143 | 0, /* rightshift */ | |
| 2144 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2145 | 0, /* bitsize */ | |
| b34976b6 | 2146 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2147 | 0, /* bitpos */ |
| 2148 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2149 | NULL, /* special_function */ | |
| 2150 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2151 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2152 | 0, /* src_mask */ |
| 2153 | 0, /* dst_mask */ | |
| b34976b6 | 2154 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2155 | }; |
| 2156 | ||
| 2157 | \f | |
| 2158 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2159 | be done. */ | |
| 2160 | ||
| 2161 | static void | |
| 4ce794b7 | 2162 | ppc_howto_init (void) |
| 5bd4f169 AM |
2163 | { |
| 2164 | unsigned int i, type; | |
| 2165 | ||
| 2166 | for (i = 0; | |
| 2167 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
| 2168 | i++) | |
| 2169 | { | |
| 2170 | type = ppc64_elf_howto_raw[i].type; | |
| 2171 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
| 2172 | / sizeof (ppc64_elf_howto_table[0]))); | |
| 2173 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
| 2174 | } | |
| 2175 | } | |
| 2176 | ||
| 2177 | static reloc_howto_type * | |
| 4ce794b7 AM |
2178 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2179 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2180 | { |
| 411e1bfb | 2181 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2182 | |
| 2183 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2184 | /* Initialize howto table if needed. */ | |
| 2185 | ppc_howto_init (); | |
| 2186 | ||
| 4ce794b7 | 2187 | switch (code) |
| 5bd4f169 AM |
2188 | { |
| 2189 | default: | |
| 4ce794b7 | 2190 | return NULL; |
| 5bd4f169 | 2191 | |
| 411e1bfb AM |
2192 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2193 | break; | |
| 2194 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2195 | break; | |
| 2196 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2197 | break; | |
| 2198 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2199 | break; | |
| 2200 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2201 | break; | |
| 2202 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2203 | break; | |
| f9c6b907 AM |
2204 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2205 | break; | |
| 411e1bfb | 2206 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2207 | break; |
| f9c6b907 AM |
2208 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2209 | break; | |
| 411e1bfb | 2210 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2211 | break; |
| 411e1bfb | 2212 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2213 | break; |
| 411e1bfb | 2214 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2215 | break; |
| 411e1bfb | 2216 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2217 | break; |
| 411e1bfb | 2218 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2219 | break; |
| 411e1bfb | 2220 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2221 | break; |
| 411e1bfb | 2222 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2223 | break; |
| 411e1bfb | 2224 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2225 | break; |
| 411e1bfb | 2226 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2227 | break; |
| 411e1bfb | 2228 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2229 | break; |
| 411e1bfb | 2230 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2231 | break; |
| 411e1bfb | 2232 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2233 | break; |
| 411e1bfb | 2234 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2235 | break; |
| 411e1bfb | 2236 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2237 | break; |
| 411e1bfb | 2238 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2239 | break; |
| 411e1bfb | 2240 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2241 | break; |
| 411e1bfb | 2242 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2243 | break; |
| 411e1bfb | 2244 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2245 | break; |
| 411e1bfb | 2246 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2247 | break; |
| 411e1bfb | 2248 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2249 | break; |
| 411e1bfb | 2250 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2251 | break; |
| 411e1bfb | 2252 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2253 | break; |
| 411e1bfb | 2254 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2255 | break; |
| 411e1bfb | 2256 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2257 | break; |
| 411e1bfb | 2258 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2259 | break; |
| 411e1bfb | 2260 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2261 | break; |
| 411e1bfb | 2262 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2263 | break; |
| 411e1bfb | 2264 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2265 | break; |
| 411e1bfb | 2266 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2267 | break; |
| 411e1bfb | 2268 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2269 | break; |
| 411e1bfb | 2270 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2315 | break; |
| 727fc41e AM |
2316 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2317 | break; | |
| 2318 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2319 | break; | |
| 411e1bfb | 2320 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2327 | break; |
| f9c6b907 AM |
2328 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2329 | break; | |
| 411e1bfb | 2330 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2331 | break; |
| f9c6b907 AM |
2332 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2333 | break; | |
| 411e1bfb | 2334 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2335 | break; |
| 411e1bfb AM |
2336 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2337 | break; | |
| 2338 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2339 | break; | |
| 2340 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2341 | break; | |
| f9c6b907 AM |
2342 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2343 | break; | |
| 411e1bfb AM |
2344 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2345 | break; | |
| f9c6b907 AM |
2346 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2347 | break; | |
| 411e1bfb AM |
2348 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2349 | break; | |
| 2350 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2351 | break; | |
| 2352 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2353 | break; | |
| 2354 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2355 | break; | |
| 2356 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2357 | break; | |
| 2358 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2359 | break; | |
| 2360 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2361 | break; | |
| 2362 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2363 | break; | |
| 2364 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2365 | break; | |
| 2366 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2367 | break; | |
| 2368 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2369 | break; | |
| 2370 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2371 | break; | |
| 2372 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2373 | break; | |
| 2374 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2375 | break; | |
| 2376 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2377 | break; | |
| 2378 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2379 | break; | |
| 2380 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2381 | break; | |
| 2382 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2383 | break; | |
| 2384 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2385 | break; | |
| 2386 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2387 | break; | |
| 2388 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2389 | break; | |
| 2390 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2391 | break; | |
| 2392 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2393 | break; | |
| 2394 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2395 | break; | |
| 2396 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2397 | break; | |
| 2398 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2399 | break; | |
| 2400 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2401 | break; | |
| 2402 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2403 | break; | |
| 2404 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2405 | break; | |
| 25f23106 AM |
2406 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2407 | break; | |
| 2408 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2409 | break; | |
| 2410 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2413 | break; | |
| 45965137 AM |
2414 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2415 | break; | |
| 411e1bfb AM |
2416 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2417 | break; | |
| 2418 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2419 | break; |
| 2420 | } | |
| 2421 | ||
| 4ce794b7 | 2422 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2423 | }; |
| 2424 | ||
| 157090f7 AM |
2425 | static reloc_howto_type * |
| 2426 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2427 | const char *r_name) | |
| 2428 | { | |
| 2429 | unsigned int i; | |
| 2430 | ||
| 2431 | for (i = 0; | |
| 2432 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
| 2433 | i++) | |
| 2434 | if (ppc64_elf_howto_raw[i].name != NULL | |
| 2435 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2436 | return &ppc64_elf_howto_raw[i]; | |
| 2437 | ||
| 2438 | return NULL; | |
| 2439 | } | |
| 2440 | ||
| 5bd4f169 AM |
2441 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2442 | ||
| 2443 | static void | |
| 4ce794b7 AM |
2444 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2445 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2446 | { |
| 65f38f15 AM |
2447 | unsigned int type; |
| 2448 | ||
| ef60b7ff | 2449 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2450 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2451 | ppc_howto_init (); |
| 2452 | ||
| 65f38f15 | 2453 | type = ELF64_R_TYPE (dst->r_info); |
| d0fb9a8d JJ |
2454 | if (type >= (sizeof (ppc64_elf_howto_table) |
| 2455 | / sizeof (ppc64_elf_howto_table[0]))) | |
| 2456 | { | |
| 2457 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
| 3ec2b351 NC |
2458 | abfd, (int) type); |
| 2459 | type = R_PPC64_NONE; | |
| d0fb9a8d | 2460 | } |
| 65f38f15 | 2461 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2462 | } |
| 2463 | ||
| 04c9666a | 2464 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2465 | |
| 2466 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2467 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2468 | void *data, asection *input_section, | |
| 2469 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2470 | { |
| 805fc799 AM |
2471 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2472 | call the generic function. Any adjustment will be done at final | |
| 2473 | link time. */ | |
| 2474 | if (output_bfd != NULL) | |
| cedb70c5 | 2475 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2476 | input_section, output_bfd, error_message); |
| 2477 | ||
| 2478 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2479 | We won't actually be using the low 16 bits, so trashing them | |
| 2480 | doesn't matter. */ | |
| 2481 | reloc_entry->addend += 0x8000; | |
| 2482 | return bfd_reloc_continue; | |
| 2483 | } | |
| 5bd4f169 | 2484 | |
| 2441e016 AM |
2485 | static bfd_reloc_status_type |
| 2486 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2487 | void *data, asection *input_section, | |
| 2488 | bfd *output_bfd, char **error_message) | |
| 2489 | { | |
| 2490 | if (output_bfd != NULL) | |
| 2491 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2492 | input_section, output_bfd, error_message); | |
| 2493 | ||
| 699733f6 AM |
2494 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2495 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2496 | { |
| 2497 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2498 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2499 | NULL, NULL, FALSE); |
| 2441e016 AM |
2500 | if (dest != (bfd_vma) -1) |
| 2501 | reloc_entry->addend = dest - (symbol->value | |
| 2502 | + symbol->section->output_section->vma | |
| 2503 | + symbol->section->output_offset); | |
| 2504 | } | |
| 810d4e75 AM |
2505 | else |
| 2506 | { | |
| 2507 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2508 | ||
| 2509 | if (symbol->section->owner != abfd | |
| 2510 | && abiversion (symbol->section->owner) >= 2) | |
| 2511 | { | |
| 2512 | unsigned int i; | |
| 2513 | ||
| 2514 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2515 | { | |
| 2516 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2517 | ||
| 2518 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2519 | { | |
| 2520 | elfsym = (elf_symbol_type *) symdef; | |
| 2521 | break; | |
| 2522 | } | |
| 2523 | } | |
| 2524 | } | |
| 2525 | reloc_entry->addend | |
| 2526 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2527 | } | |
| 2441e016 AM |
2528 | return bfd_reloc_continue; |
| 2529 | } | |
| 2530 | ||
| 805fc799 | 2531 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2532 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2533 | void *data, asection *input_section, | |
| 2534 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2535 | { |
| 2536 | long insn; | |
| 04c9666a | 2537 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2538 | bfd_size_type octets; |
| 794e51c0 AM |
2539 | /* Assume 'at' branch hints. */ |
| 2540 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2541 | |
| 2542 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2543 | call the generic function. Any adjustment will be done at final | |
| 2544 | link time. */ | |
| 5bd4f169 | 2545 | if (output_bfd != NULL) |
| cedb70c5 | 2546 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2547 | input_section, output_bfd, error_message); |
| 2548 | ||
| 2549 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2550 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2551 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2552 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2553 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2554 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2555 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2556 | |
| 794e51c0 | 2557 | if (is_isa_v2) |
| 5bd4f169 | 2558 | { |
| 805fc799 AM |
2559 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2560 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2561 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2562 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2563 | insn |= 0x02 << 21; | |
| 2564 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2565 | insn |= 0x08 << 21; | |
| 2566 | else | |
| 2441e016 | 2567 | goto out; |
| 5bd4f169 | 2568 | } |
| 805fc799 AM |
2569 | else |
| 2570 | { | |
| 2571 | bfd_vma target = 0; | |
| 2572 | bfd_vma from; | |
| 5bd4f169 | 2573 | |
| 805fc799 AM |
2574 | if (!bfd_is_com_section (symbol->section)) |
| 2575 | target = symbol->value; | |
| 2576 | target += symbol->section->output_section->vma; | |
| 2577 | target += symbol->section->output_offset; | |
| 2578 | target += reloc_entry->addend; | |
| 5bd4f169 | 2579 | |
| 805fc799 AM |
2580 | from = (reloc_entry->address |
| 2581 | + input_section->output_offset | |
| 2582 | + input_section->output_section->vma); | |
| 5bd4f169 | 2583 | |
| 805fc799 AM |
2584 | /* Invert 'y' bit if not the default. */ |
| 2585 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2586 | insn ^= 0x01 << 21; | |
| 2587 | } | |
| 4ce794b7 | 2588 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2589 | out: |
| 2590 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2591 | input_section, output_bfd, error_message); | |
| 805fc799 | 2592 | } |
| 5bd4f169 | 2593 | |
| 805fc799 | 2594 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2595 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2596 | void *data, asection *input_section, | |
| 2597 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2598 | { |
| 2599 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2600 | call the generic function. Any adjustment will be done at final | |
| 2601 | link time. */ | |
| 2602 | if (output_bfd != NULL) | |
| cedb70c5 | 2603 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2604 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2605 | |
| 805fc799 AM |
2606 | /* Subtract the symbol section base address. */ |
| 2607 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2608 | return bfd_reloc_continue; |
| 2609 | } | |
| 2610 | ||
| 805fc799 | 2611 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2612 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2613 | void *data, asection *input_section, | |
| 2614 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2615 | { |
| 2616 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2617 | call the generic function. Any adjustment will be done at final | |
| 2618 | link time. */ | |
| 2619 | if (output_bfd != NULL) | |
| cedb70c5 | 2620 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2621 | input_section, output_bfd, error_message); |
| 2622 | ||
| 2623 | /* Subtract the symbol section base address. */ | |
| 2624 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2625 | ||
| 2626 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2627 | reloc_entry->addend += 0x8000; | |
| 2628 | return bfd_reloc_continue; | |
| 2629 | } | |
| 2630 | ||
| 2631 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2632 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2633 | void *data, asection *input_section, | |
| 2634 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2635 | { |
| 2636 | bfd_vma TOCstart; | |
| 2637 | ||
| 2638 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2639 | call the generic function. Any adjustment will be done at final | |
| 2640 | link time. */ | |
| 2641 | if (output_bfd != NULL) | |
| cedb70c5 | 2642 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2643 | input_section, output_bfd, error_message); |
| 2644 | ||
| 2645 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2646 | if (TOCstart == 0) | |
| 1c865ab2 | 2647 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2648 | |
| 2649 | /* Subtract the TOC base address. */ | |
| 2650 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2651 | return bfd_reloc_continue; | |
| 2652 | } | |
| 2653 | ||
| 2654 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2655 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2656 | void *data, asection *input_section, | |
| 2657 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2658 | { |
| 2659 | bfd_vma TOCstart; | |
| 2660 | ||
| 2661 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2662 | call the generic function. Any adjustment will be done at final | |
| 2663 | link time. */ | |
| 2664 | if (output_bfd != NULL) | |
| cedb70c5 | 2665 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2666 | input_section, output_bfd, error_message); |
| 2667 | ||
| 2668 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2669 | if (TOCstart == 0) | |
| 1c865ab2 | 2670 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2671 | |
| 2672 | /* Subtract the TOC base address. */ | |
| 2673 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2674 | ||
| 2675 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2676 | reloc_entry->addend += 0x8000; | |
| 2677 | return bfd_reloc_continue; | |
| 2678 | } | |
| 2679 | ||
| 2680 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2681 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2682 | void *data, asection *input_section, | |
| 2683 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2684 | { |
| 2685 | bfd_vma TOCstart; | |
| 2686 | bfd_size_type octets; | |
| 2687 | ||
| 2688 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2689 | call the generic function. Any adjustment will be done at final | |
| 2690 | link time. */ | |
| 2691 | if (output_bfd != NULL) | |
| cedb70c5 | 2692 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2693 | input_section, output_bfd, error_message); |
| 2694 | ||
| 2695 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2696 | if (TOCstart == 0) | |
| 1c865ab2 | 2697 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2698 | |
| 2699 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2700 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2701 | return bfd_reloc_ok; | |
| 2702 | } | |
| 2703 | ||
| 2704 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2705 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2706 | void *data, asection *input_section, | |
| 2707 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2708 | { |
| 2709 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2710 | call the generic function. Any adjustment will be done at final | |
| 2711 | link time. */ | |
| 2712 | if (output_bfd != NULL) | |
| cedb70c5 | 2713 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2714 | input_section, output_bfd, error_message); |
| 2715 | ||
| 2716 | if (error_message != NULL) | |
| 2717 | { | |
| 2718 | static char buf[60]; | |
| 2719 | sprintf (buf, "generic linker can't handle %s", | |
| 2720 | reloc_entry->howto->name); | |
| 2721 | *error_message = buf; | |
| 2722 | } | |
| 2723 | return bfd_reloc_dangerous; | |
| 2724 | } | |
| 2725 | ||
| 927be08e AM |
2726 | /* Track GOT entries needed for a given symbol. We might need more |
| 2727 | than one got entry per symbol. */ | |
| 2728 | struct got_entry | |
| 2729 | { | |
| 2730 | struct got_entry *next; | |
| 2731 | ||
| 2732 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2733 | bfd_vma addend; | |
| 2734 | ||
| 2735 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2736 | symbol referenced from different input files. This is to support | |
| 2737 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2738 | from one input file to another. After partitioning into TOC groups | |
| 2739 | we merge entries within the group. | |
| 2740 | ||
| 2741 | Point to the BFD owning this GOT entry. */ | |
| 2742 | bfd *owner; | |
| 2743 | ||
| 2744 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2745 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2746 | unsigned char tls_type; |
| 927be08e AM |
2747 | |
| 2748 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2749 | unsigned char is_indirect; |
| 927be08e AM |
2750 | |
| 2751 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2752 | union | |
| 2753 | { | |
| 2754 | bfd_signed_vma refcount; | |
| 2755 | bfd_vma offset; | |
| 2756 | struct got_entry *ent; | |
| 2757 | } got; | |
| 2758 | }; | |
| 2759 | ||
| 2760 | /* The same for PLT. */ | |
| 2761 | struct plt_entry | |
| 2762 | { | |
| 2763 | struct plt_entry *next; | |
| 2764 | ||
| 2765 | bfd_vma addend; | |
| 2766 | ||
| 2767 | union | |
| 2768 | { | |
| 2769 | bfd_signed_vma refcount; | |
| 2770 | bfd_vma offset; | |
| 2771 | } plt; | |
| 2772 | }; | |
| 2773 | ||
| e717da7e AM |
2774 | struct ppc64_elf_obj_tdata |
| 2775 | { | |
| 2776 | struct elf_obj_tdata elf; | |
| 2777 | ||
| 2778 | /* Shortcuts to dynamic linker sections. */ | |
| 2779 | asection *got; | |
| 2780 | asection *relgot; | |
| 2781 | ||
| b3fac117 AM |
2782 | /* Used during garbage collection. We attach global symbols defined |
| 2783 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2784 | asection *deleted_section; | |
| 81688140 | 2785 | |
| 927be08e | 2786 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2787 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2788 | struct got_entry tlsld_got; |
| 8860955f | 2789 | |
| 729eabd5 AM |
2790 | union { |
| 2791 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2792 | Elf_Internal_Rela *relocs; | |
| 2793 | ||
| 2794 | /* Section contents. */ | |
| 2795 | bfd_byte *contents; | |
| 2796 | } opd; | |
| d77c8a4b AM |
2797 | |
| 2798 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2799 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2800 | unsigned int has_small_toc_reloc : 1; |
| 2801 | ||
| 560c8763 AM |
2802 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2803 | instruction not one we handle. */ | |
| 2804 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2805 | }; |
| 2806 | ||
| 2807 | #define ppc64_elf_tdata(bfd) \ | |
| 2808 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2809 | ||
| 2810 | #define ppc64_tlsld_got(bfd) \ | |
| 2811 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2812 | ||
| 0c8d6e5c AM |
2813 | #define is_ppc64_elf(bfd) \ |
| 2814 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2815 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2816 | |
| e717da7e AM |
2817 | /* Override the generic function because we store some extras. */ |
| 2818 | ||
| 2819 | static bfd_boolean | |
| 2820 | ppc64_elf_mkobject (bfd *abfd) | |
| 2821 | { | |
| 0ffa91dd | 2822 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2823 | PPC64_ELF_DATA); |
| e717da7e AM |
2824 | } |
| 2825 | ||
| feee612b AM |
2826 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 2827 | default is 32 bit. */ | |
| 2828 | ||
| b34976b6 | 2829 | static bfd_boolean |
| 4ce794b7 | 2830 | ppc64_elf_object_p (bfd *abfd) |
| feee612b AM |
2831 | { |
| 2832 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
| 2833 | { | |
| 2834 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2835 | ||
| 2836 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2837 | { | |
| 2838 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2839 | abfd->arch_info = abfd->arch_info->next; | |
| 2840 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2841 | } | |
| 2842 | } | |
| b34976b6 | 2843 | return TRUE; |
| feee612b AM |
2844 | } |
| 2845 | ||
| d37c89e5 AM |
2846 | /* Support for core dump NOTE sections. */ |
| 2847 | ||
| 2848 | static bfd_boolean | |
| 2849 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2850 | { | |
| eea6121a | 2851 | size_t offset, size; |
| d37c89e5 AM |
2852 | |
| 2853 | if (note->descsz != 504) | |
| 2854 | return FALSE; | |
| 2855 | ||
| 2856 | /* pr_cursig */ | |
| 228e534f | 2857 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2858 | |
| 2859 | /* pr_pid */ | |
| 228e534f | 2860 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2861 | |
| 2862 | /* pr_reg */ | |
| 2863 | offset = 112; | |
| eea6121a | 2864 | size = 384; |
| d37c89e5 AM |
2865 | |
| 2866 | /* Make a ".reg/999" section. */ | |
| 2867 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2868 | size, note->descpos + offset); |
| d37c89e5 AM |
2869 | } |
| 2870 | ||
| 2871 | static bfd_boolean | |
| 2872 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2873 | { | |
| 2874 | if (note->descsz != 136) | |
| 2875 | return FALSE; | |
| 2876 | ||
| 228e534f | 2877 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2878 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2879 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2880 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2881 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2882 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2883 | ||
| 2884 | return TRUE; | |
| 2885 | } | |
| 2886 | ||
| 183e98be AM |
2887 | static char * |
| 2888 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2889 | ...) | |
| 2890 | { | |
| 2891 | switch (note_type) | |
| 2892 | { | |
| 2893 | default: | |
| 2894 | return NULL; | |
| 2895 | ||
| 2896 | case NT_PRPSINFO: | |
| 2897 | { | |
| 2898 | char data[136]; | |
| 2899 | va_list ap; | |
| 2900 | ||
| 2901 | va_start (ap, note_type); | |
| 75cd47ed | 2902 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2903 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2904 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2905 | va_end (ap); | |
| 2906 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2907 | "CORE", note_type, data, sizeof (data)); | |
| 2908 | } | |
| 2909 | ||
| 2910 | case NT_PRSTATUS: | |
| 2911 | { | |
| 2912 | char data[504]; | |
| 2913 | va_list ap; | |
| 2914 | long pid; | |
| 2915 | int cursig; | |
| 2916 | const void *greg; | |
| 2917 | ||
| 2918 | va_start (ap, note_type); | |
| 2919 | memset (data, 0, 112); | |
| 2920 | pid = va_arg (ap, long); | |
| 2921 | bfd_put_32 (abfd, pid, data + 32); | |
| 2922 | cursig = va_arg (ap, int); | |
| 2923 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2924 | greg = va_arg (ap, const void *); | |
| 2925 | memcpy (data + 112, greg, 384); | |
| 2926 | memset (data + 496, 0, 8); | |
| 2927 | va_end (ap); | |
| 2928 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2929 | "CORE", note_type, data, sizeof (data)); | |
| 2930 | } | |
| 2931 | } | |
| 2932 | } | |
| 2933 | ||
| 5d35169e AM |
2934 | /* Add extra PPC sections. */ |
| 2935 | ||
| b35d266b | 2936 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 2937 | { |
| 0112cd26 NC |
2938 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 2939 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2940 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2941 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2942 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2943 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2944 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
2945 | }; |
| 2946 | ||
| 7c8fe5c4 AM |
2947 | enum _ppc64_sec_type { |
| 2948 | sec_normal = 0, | |
| 2949 | sec_opd = 1, | |
| 2950 | sec_toc = 2 | |
| 2951 | }; | |
| 2952 | ||
| f0abc2a1 AM |
2953 | struct _ppc64_elf_section_data |
| 2954 | { | |
| 2955 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 2956 | |
| f0abc2a1 AM |
2957 | union |
| 2958 | { | |
| 51aecdc5 AM |
2959 | /* An array with one entry for each opd function descriptor, |
| 2960 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 2961 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
2962 | struct _opd_sec_data |
| 2963 | { | |
| 2964 | /* Points to the function code section for local opd entries. */ | |
| 2965 | asection **func_sec; | |
| 2966 | ||
| 2967 | /* After editing .opd, adjust references to opd local syms. */ | |
| 2968 | long *adjust; | |
| 2969 | } opd; | |
| 7c8fe5c4 | 2970 | |
| 3a71aa26 AM |
2971 | /* An array for toc sections, indexed by offset/8. */ |
| 2972 | struct _toc_sec_data | |
| 2973 | { | |
| 2974 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 2975 | unsigned *symndx; | |
| 2976 | ||
| 2977 | /* And the relocation addend. */ | |
| 2978 | bfd_vma *add; | |
| 2979 | } toc; | |
| 7c8fe5c4 AM |
2980 | } u; |
| 2981 | ||
| 2982 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 2983 | |
| 7c8fe5c4 AM |
2984 | /* Flag set when small branches are detected. Used to |
| 2985 | select suitable defaults for the stub group size. */ | |
| 2986 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
2987 | }; |
| 2988 | ||
| 2989 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 2990 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
2991 | |
| 2992 | static bfd_boolean | |
| 4ce794b7 | 2993 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 2994 | { |
| f592407e AM |
2995 | if (!sec->used_by_bfd) |
| 2996 | { | |
| 2997 | struct _ppc64_elf_section_data *sdata; | |
| 2998 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 2999 | |
| f592407e AM |
3000 | sdata = bfd_zalloc (abfd, amt); |
| 3001 | if (sdata == NULL) | |
| 3002 | return FALSE; | |
| 3003 | sec->used_by_bfd = sdata; | |
| 3004 | } | |
| f0abc2a1 AM |
3005 | |
| 3006 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3007 | } | |
| 4025353c | 3008 | |
| 74f0fb50 | 3009 | static struct _opd_sec_data * |
| 4025353c AM |
3010 | get_opd_info (asection * sec) |
| 3011 | { | |
| 3012 | if (sec != NULL | |
| 3013 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3014 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3015 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3016 | return NULL; |
| 3017 | } | |
| 90e3cdf2 JJ |
3018 | \f |
| 3019 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 JJ |
3020 | static bfd_boolean synthetic_relocatable; |
| 3021 | ||
| 699733f6 | 3022 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3023 | |
| 3024 | static int | |
| 3025 | compare_symbols (const void *ap, const void *bp) | |
| 3026 | { | |
| 3027 | const asymbol *a = * (const asymbol **) ap; | |
| 3028 | const asymbol *b = * (const asymbol **) bp; | |
| 3029 | ||
| 699733f6 AM |
3030 | /* Section symbols first. */ |
| 3031 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3032 | return -1; |
| 699733f6 | 3033 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3034 | return 1; |
| 3035 | ||
| 699733f6 | 3036 | /* then .opd symbols. */ |
| ffcfec52 AM |
3037 | if (strcmp (a->section->name, ".opd") == 0 |
| 3038 | && strcmp (b->section->name, ".opd") != 0) | |
| 90e3cdf2 | 3039 | return -1; |
| ffcfec52 AM |
3040 | if (strcmp (a->section->name, ".opd") != 0 |
| 3041 | && strcmp (b->section->name, ".opd") == 0) | |
| 90e3cdf2 JJ |
3042 | return 1; |
| 3043 | ||
| 699733f6 | 3044 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3045 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3046 | == (SEC_CODE | SEC_ALLOC) | |
| 3047 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3048 | != (SEC_CODE | SEC_ALLOC)) | |
| 3049 | return -1; | |
| 3050 | ||
| 3051 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3052 | != (SEC_CODE | SEC_ALLOC) | |
| 3053 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3054 | == (SEC_CODE | SEC_ALLOC)) | |
| 3055 | return 1; | |
| 3056 | ||
| 3057 | if (synthetic_relocatable) | |
| 3058 | { | |
| 3059 | if (a->section->id < b->section->id) | |
| 3060 | return -1; | |
| 3061 | ||
| 3062 | if (a->section->id > b->section->id) | |
| 3063 | return 1; | |
| 3064 | } | |
| 3065 | ||
| 3066 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3067 | return -1; | |
| 3068 | ||
| 3069 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3070 | return 1; | |
| 3071 | ||
| 4d35a0aa AM |
3072 | /* For syms with the same value, prefer strong dynamic global function |
| 3073 | syms over other syms. */ | |
| 3074 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3075 | return -1; | |
| 3076 | ||
| 3077 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3078 | return 1; | |
| 3079 | ||
| 3080 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3081 | return -1; | |
| 3082 | ||
| 3083 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3084 | return 1; | |
| 3085 | ||
| 3086 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3087 | return -1; | |
| 3088 | ||
| 3089 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3090 | return 1; | |
| 3091 | ||
| 3092 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3093 | return -1; | |
| 3094 | ||
| 3095 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3096 | return 1; | |
| 3097 | ||
| 90e3cdf2 JJ |
3098 | return 0; |
| 3099 | } | |
| 3100 | ||
| 699733f6 | 3101 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3102 | |
| 699733f6 AM |
3103 | static asymbol * |
| 3104 | sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value) | |
| 90e3cdf2 | 3105 | { |
| 699733f6 | 3106 | long mid; |
| 90e3cdf2 | 3107 | |
| 699733f6 AM |
3108 | if (id == -1) |
| 3109 | { | |
| 3110 | while (lo < hi) | |
| 3111 | { | |
| 3112 | mid = (lo + hi) >> 1; | |
| 3113 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3114 | lo = mid + 1; | |
| 3115 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3116 | hi = mid; | |
| 3117 | else | |
| 3118 | return syms[mid]; | |
| 3119 | } | |
| 3120 | } | |
| 3121 | else | |
| 3122 | { | |
| 3123 | while (lo < hi) | |
| 3124 | { | |
| 3125 | mid = (lo + hi) >> 1; | |
| 3126 | if (syms[mid]->section->id < id) | |
| 3127 | lo = mid + 1; | |
| 3128 | else if (syms[mid]->section->id > id) | |
| 3129 | hi = mid; | |
| 3130 | else if (syms[mid]->value < value) | |
| 3131 | lo = mid + 1; | |
| 3132 | else if (syms[mid]->value > value) | |
| 3133 | hi = mid; | |
| 3134 | else | |
| 3135 | return syms[mid]; | |
| 3136 | } | |
| 3137 | } | |
| 3138 | return NULL; | |
| 90e3cdf2 JJ |
3139 | } |
| 3140 | ||
| 468392fb AM |
3141 | static bfd_boolean |
| 3142 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3143 | { | |
| 3144 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3145 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3146 | && section->vma <= vma | |
| 3147 | && vma < section->vma + section->size); | |
| 3148 | } | |
| 3149 | ||
| 699733f6 | 3150 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3151 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3152 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3153 | |
| 3154 | static long | |
| a7535cf3 AM |
3155 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3156 | long static_count, asymbol **static_syms, | |
| 3157 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3158 | asymbol **ret) |
| 90e3cdf2 JJ |
3159 | { |
| 3160 | asymbol *s; | |
| 699733f6 AM |
3161 | long i; |
| 3162 | long count; | |
| 90e3cdf2 | 3163 | char *names; |
| a7535cf3 | 3164 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3165 | asection *opd = NULL; |
| 90e3cdf2 | 3166 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3167 | asymbol **syms; |
| ee67d69a | 3168 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3169 | |
| 3170 | *ret = NULL; | |
| 3171 | ||
| ee67d69a AM |
3172 | if (abi < 2) |
| 3173 | { | |
| 3174 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3175 | if (opd == NULL && abi == 1) | |
| 3176 | return 0; | |
| 3177 | } | |
| 90e3cdf2 | 3178 | |
| a7535cf3 | 3179 | symcount = static_count; |
| c9727e01 | 3180 | if (!relocatable) |
| a7535cf3 | 3181 | symcount += dyn_count; |
| 90e3cdf2 | 3182 | if (symcount == 0) |
| c9727e01 | 3183 | return 0; |
| 90e3cdf2 | 3184 | |
| a7535cf3 AM |
3185 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3186 | if (syms == NULL) | |
| 7356fed5 | 3187 | return -1; |
| a7535cf3 AM |
3188 | |
| 3189 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3190 | { | |
| 3191 | /* Use both symbol tables. */ | |
| 3192 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3193 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3194 | } | |
| 3195 | else if (!relocatable && static_count == 0) | |
| 3196 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3197 | else | |
| 3198 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3199 | ||
| 90e3cdf2 | 3200 | synthetic_relocatable = relocatable; |
| 595da8c5 | 3201 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3202 | |
| c9727e01 AM |
3203 | if (!relocatable && symcount > 1) |
| 3204 | { | |
| 3205 | long j; | |
| 3206 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3207 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3208 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3209 | for (i = 1, j = 1; i < symcount; ++i) |
| 3210 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3211 | != syms[i]->value + syms[i]->section->vma) | |
| 3212 | syms[j++] = syms[i]; | |
| 3213 | symcount = j; | |
| 3214 | } | |
| 3215 | ||
| 699733f6 | 3216 | i = 0; |
| ffcfec52 | 3217 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| 699733f6 AM |
3218 | ++i; |
| 3219 | codesecsym = i; | |
| 90e3cdf2 | 3220 | |
| 699733f6 AM |
3221 | for (; i < symcount; ++i) |
| 3222 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3223 | != (SEC_CODE | SEC_ALLOC)) | |
| 3224 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3225 | break; | |
| 3226 | codesecsymend = i; | |
| 90e3cdf2 | 3227 | |
| 699733f6 AM |
3228 | for (; i < symcount; ++i) |
| 3229 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3230 | break; | |
| 3231 | secsymend = i; | |
| 90e3cdf2 | 3232 | |
| 699733f6 | 3233 | for (; i < symcount; ++i) |
| ffcfec52 | 3234 | if (strcmp (syms[i]->section->name, ".opd") != 0) |
| 699733f6 AM |
3235 | break; |
| 3236 | opdsymend = i; | |
| 90e3cdf2 | 3237 | |
| 699733f6 AM |
3238 | for (; i < symcount; ++i) |
| 3239 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3240 | != (SEC_CODE | SEC_ALLOC)) | |
| 3241 | break; | |
| 3242 | symcount = i; | |
| 3243 | ||
| c9727e01 | 3244 | count = 0; |
| 90e3cdf2 | 3245 | |
| 699733f6 | 3246 | if (relocatable) |
| 90e3cdf2 | 3247 | { |
| 699733f6 AM |
3248 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3249 | arelent *r; | |
| 3250 | size_t size; | |
| 3251 | long relcount; | |
| 90e3cdf2 | 3252 | |
| 468392fb AM |
3253 | if (opdsymend == secsymend) |
| 3254 | goto done; | |
| 3255 | ||
| 699733f6 | 3256 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3257 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3258 | if (relcount == 0) |
| c9727e01 | 3259 | goto done; |
| 90e3cdf2 | 3260 | |
| 7356fed5 AM |
3261 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3262 | { | |
| 3263 | count = -1; | |
| 3264 | goto done; | |
| 3265 | } | |
| 3266 | ||
| 699733f6 | 3267 | size = 0; |
| 595da8c5 | 3268 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3269 | { |
| 3270 | asymbol *sym; | |
| 90e3cdf2 | 3271 | |
| 595da8c5 | 3272 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3273 | && r->address < syms[i]->value + opd->vma) |
| 3274 | ++r; | |
| 90e3cdf2 | 3275 | |
| 595da8c5 | 3276 | if (r == opd->relocation + relcount) |
| 699733f6 | 3277 | break; |
| 90e3cdf2 | 3278 | |
| 699733f6 AM |
3279 | if (r->address != syms[i]->value + opd->vma) |
| 3280 | continue; | |
| 90e3cdf2 | 3281 | |
| 699733f6 AM |
3282 | if (r->howto->type != R_PPC64_ADDR64) |
| 3283 | continue; | |
| 90e3cdf2 | 3284 | |
| 699733f6 AM |
3285 | sym = *r->sym_ptr_ptr; |
| 3286 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3287 | sym->section->id, sym->value + r->addend)) | |
| 3288 | { | |
| 3289 | ++count; | |
| 3290 | size += sizeof (asymbol); | |
| 3291 | size += strlen (syms[i]->name) + 2; | |
| 3292 | } | |
| 3293 | } | |
| 90e3cdf2 | 3294 | |
| c4b0b099 AM |
3295 | if (size == 0) |
| 3296 | goto done; | |
| 699733f6 AM |
3297 | s = *ret = bfd_malloc (size); |
| 3298 | if (s == NULL) | |
| 3299 | { | |
| 7356fed5 | 3300 | count = -1; |
| c9727e01 | 3301 | goto done; |
| 699733f6 | 3302 | } |
| 90e3cdf2 | 3303 | |
| 699733f6 | 3304 | names = (char *) (s + count); |
| 90e3cdf2 | 3305 | |
| 595da8c5 | 3306 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3307 | { |
| 699733f6 | 3308 | asymbol *sym; |
| 90e3cdf2 | 3309 | |
| 595da8c5 | 3310 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3311 | && r->address < syms[i]->value + opd->vma) |
| 3312 | ++r; | |
| 90e3cdf2 | 3313 | |
| 595da8c5 | 3314 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3315 | break; |
| 3316 | ||
| 3317 | if (r->address != syms[i]->value + opd->vma) | |
| 3318 | continue; | |
| 3319 | ||
| 3320 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3321 | continue; | |
| 90e3cdf2 | 3322 | |
| 699733f6 AM |
3323 | sym = *r->sym_ptr_ptr; |
| 3324 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3325 | sym->section->id, sym->value + r->addend)) | |
| 3326 | { | |
| 3327 | size_t len; | |
| 3328 | ||
| 3329 | *s = *syms[i]; | |
| 6ba2a415 | 3330 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3331 | s->section = sym->section; |
| 3332 | s->value = sym->value + r->addend; | |
| 3333 | s->name = names; | |
| 3334 | *names++ = '.'; | |
| 3335 | len = strlen (syms[i]->name); | |
| 3336 | memcpy (names, syms[i]->name, len + 1); | |
| 3337 | names += len + 1; | |
| 6f610d07 UW |
3338 | /* Have udata.p point back to the original symbol this |
| 3339 | synthetic symbol was derived from. */ | |
| 3340 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3341 | s++; |
| 3342 | } | |
| 3343 | } | |
| 3344 | } | |
| 3345 | else | |
| 90e3cdf2 | 3346 | { |
| 468392fb | 3347 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3348 | bfd_byte *contents = NULL; |
| 699733f6 | 3349 | size_t size; |
| 468392fb AM |
3350 | long plt_count = 0; |
| 3351 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3352 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3353 | arelent *p; | |
| 90e3cdf2 | 3354 | |
| ee67d69a | 3355 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3356 | { |
| c4b0b099 AM |
3357 | free_contents_and_exit_err: |
| 3358 | count = -1; | |
| ee67d69a | 3359 | free_contents_and_exit: |
| 699733f6 | 3360 | if (contents) |
| ee67d69a | 3361 | free (contents); |
| c9727e01 | 3362 | goto done; |
| 699733f6 | 3363 | } |
| 90e3cdf2 | 3364 | |
| 699733f6 AM |
3365 | size = 0; |
| 3366 | for (i = secsymend; i < opdsymend; ++i) | |
| 3367 | { | |
| 3368 | bfd_vma ent; | |
| 90e3cdf2 | 3369 | |
| 5ef11c02 AM |
3370 | /* Ignore bogus symbols. */ |
| 3371 | if (syms[i]->value > opd->size - 8) | |
| 3372 | continue; | |
| 3373 | ||
| 699733f6 AM |
3374 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3375 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3376 | { | |
| 3377 | ++count; | |
| 3378 | size += sizeof (asymbol); | |
| 3379 | size += strlen (syms[i]->name) + 2; | |
| 3380 | } | |
| 3381 | } | |
| 90e3cdf2 | 3382 | |
| 468392fb | 3383 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3384 | if (dyn_count != 0 |
| 3385 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3386 | { |
| 3387 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3388 | size_t extdynsize; | |
| 3389 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3390 | ||
| 3391 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3392 | goto free_contents_and_exit_err; |
| 468392fb AM |
3393 | |
| 3394 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3395 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3396 | ||
| 3397 | extdyn = dynbuf; | |
| 3398 | extdynend = extdyn + dynamic->size; | |
| 3399 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3400 | { | |
| 3401 | Elf_Internal_Dyn dyn; | |
| 3402 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3403 | ||
| 3404 | if (dyn.d_tag == DT_NULL) | |
| 3405 | break; | |
| 3406 | ||
| 3407 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3408 | { | |
| b9e5796b AM |
3409 | /* The first glink stub starts at offset 32; see |
| 3410 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3411 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3412 | /* The .glink section usually does not survive the final |
| 3413 | link; search for the section (usually .text) where the | |
| 3414 | glink stubs now reside. */ | |
| 3415 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3416 | &glink_vma); | |
| 3417 | break; | |
| 3418 | } | |
| 3419 | } | |
| 3420 | ||
| 3421 | free (dynbuf); | |
| 3422 | } | |
| 3423 | ||
| 3424 | if (glink != NULL) | |
| 3425 | { | |
| 3426 | /* Determine __glink trampoline by reading the relative branch | |
| 3427 | from the first glink stub. */ | |
| 3428 | bfd_byte buf[4]; | |
| b9e5796b AM |
3429 | unsigned int off = 0; |
| 3430 | ||
| 3431 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3432 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3433 | { |
| 3434 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3435 | insn ^= B_DOT; | |
| 3436 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3437 | { |
| 3438 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3439 | break; | |
| 3440 | } | |
| 3441 | off += 4; | |
| 3442 | if (off > 4) | |
| 3443 | break; | |
| 468392fb AM |
3444 | } |
| 3445 | ||
| 3446 | if (resolv_vma) | |
| 3447 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3448 | |
| 066ee829 AM |
3449 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3450 | if (relplt != NULL) | |
| 3451 | { | |
| 3452 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3453 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3454 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3455 | |
| 066ee829 AM |
3456 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3457 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3458 | |
| 066ee829 AM |
3459 | p = relplt->relocation; |
| 3460 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3461 | { |
| 3462 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3463 | if (p->addend != 0) | |
| 3464 | size += sizeof ("+0x") - 1 + 16; | |
| 3465 | } | |
| 066ee829 | 3466 | } |
| 468392fb AM |
3467 | } |
| 3468 | ||
| c4b0b099 AM |
3469 | if (size == 0) |
| 3470 | goto free_contents_and_exit; | |
| 699733f6 AM |
3471 | s = *ret = bfd_malloc (size); |
| 3472 | if (s == NULL) | |
| c4b0b099 | 3473 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3474 | |
| 468392fb | 3475 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3476 | |
| 699733f6 | 3477 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3478 | { |
| 699733f6 | 3479 | bfd_vma ent; |
| 90e3cdf2 | 3480 | |
| 5ef11c02 AM |
3481 | if (syms[i]->value > opd->size - 8) |
| 3482 | continue; | |
| 3483 | ||
| 699733f6 AM |
3484 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3485 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3486 | { |
| c9727e01 | 3487 | long lo, hi; |
| 699733f6 | 3488 | size_t len; |
| c9727e01 | 3489 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3490 | |
| 699733f6 AM |
3491 | *s = *syms[i]; |
| 3492 | lo = codesecsym; | |
| 3493 | hi = codesecsymend; | |
| 3494 | while (lo < hi) | |
| 3495 | { | |
| c9727e01 | 3496 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3497 | if (syms[mid]->section->vma < ent) |
| 3498 | lo = mid + 1; | |
| 3499 | else if (syms[mid]->section->vma > ent) | |
| 3500 | hi = mid; | |
| 3501 | else | |
| c9727e01 AM |
3502 | { |
| 3503 | sec = syms[mid]->section; | |
| 3504 | break; | |
| 3505 | } | |
| 699733f6 AM |
3506 | } |
| 3507 | ||
| c9727e01 | 3508 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3509 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3510 | |
| 3511 | for (; sec != NULL; sec = sec->next) | |
| 3512 | { | |
| 3513 | if (sec->vma > ent) | |
| 3514 | break; | |
| 63524580 JK |
3515 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3516 | info file. */ | |
| 3517 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3518 | break; |
| 3519 | if ((sec->flags & SEC_CODE) != 0) | |
| 3520 | s->section = sec; | |
| 3521 | } | |
| 6ba2a415 | 3522 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3523 | s->value = ent - s->section->vma; |
| 3524 | s->name = names; | |
| 3525 | *names++ = '.'; | |
| 3526 | len = strlen (syms[i]->name); | |
| 3527 | memcpy (names, syms[i]->name, len + 1); | |
| 3528 | names += len + 1; | |
| 6f610d07 UW |
3529 | /* Have udata.p point back to the original symbol this |
| 3530 | synthetic symbol was derived from. */ | |
| 3531 | s->udata.p = syms[i]; | |
| 699733f6 | 3532 | s++; |
| 90e3cdf2 | 3533 | } |
| 90e3cdf2 | 3534 | } |
| 699733f6 | 3535 | free (contents); |
| 468392fb AM |
3536 | |
| 3537 | if (glink != NULL && relplt != NULL) | |
| 3538 | { | |
| 3539 | if (resolv_vma) | |
| 3540 | { | |
| 3541 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3542 | memset (s, 0, sizeof *s); |
| 468392fb | 3543 | s->the_bfd = abfd; |
| 6ba2a415 | 3544 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3545 | s->section = glink; |
| 3546 | s->value = resolv_vma - glink->vma; | |
| 3547 | s->name = names; | |
| 3548 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3549 | names += sizeof ("__glink_PLTresolve"); | |
| 3550 | s++; | |
| 3551 | count++; | |
| 3552 | } | |
| 3553 | ||
| 3554 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3555 | stub rather than on the glink branch table entry. The | |
| 3556 | objdump disassembler would then use a sensible symbol | |
| 3557 | name on plt calls. The difficulty in doing so is | |
| 3558 | a) finding the stubs, and, | |
| 3559 | b) matching stubs against plt entries, and, | |
| 3560 | c) there can be multiple stubs for a given plt entry. | |
| 3561 | ||
| 3562 | Solving (a) could be done by code scanning, but older | |
| 3563 | ppc64 binaries used different stubs to current code. | |
| 3564 | (b) is the tricky one since you need to known the toc | |
| 3565 | pointer for at least one function that uses a pic stub to | |
| 3566 | be able to calculate the plt address referenced. | |
| 3567 | (c) means gdb would need to set multiple breakpoints (or | |
| 3568 | find the glink branch itself) when setting breakpoints | |
| 3569 | for pending shared library loads. */ | |
| 3570 | p = relplt->relocation; | |
| 3571 | for (i = 0; i < plt_count; i++, p++) | |
| 3572 | { | |
| 3573 | size_t len; | |
| 3574 | ||
| 3575 | *s = **p->sym_ptr_ptr; | |
| 3576 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3577 | we are defining a symbol, ensure one of them is set. */ | |
| 3578 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3579 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3580 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3581 | s->section = glink; |
| 3582 | s->value = glink_vma - glink->vma; | |
| 3583 | s->name = names; | |
| 3584 | s->udata.p = NULL; | |
| 3585 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3586 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3587 | names += len; | |
| e054468f AM |
3588 | if (p->addend != 0) |
| 3589 | { | |
| 3590 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3591 | names += sizeof ("+0x") - 1; | |
| 3592 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3593 | names += strlen (names); | |
| 3594 | } | |
| 468392fb AM |
3595 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3596 | names += sizeof ("@plt"); | |
| 3597 | s++; | |
| b9e5796b AM |
3598 | if (abi < 2) |
| 3599 | { | |
| 3600 | glink_vma += 8; | |
| 3601 | if (i >= 0x8000) | |
| 3602 | glink_vma += 4; | |
| 3603 | } | |
| 3604 | else | |
| 468392fb AM |
3605 | glink_vma += 4; |
| 3606 | } | |
| 3607 | count += plt_count; | |
| 3608 | } | |
| 90e3cdf2 JJ |
3609 | } |
| 3610 | ||
| c9727e01 | 3611 | done: |
| a7535cf3 | 3612 | free (syms); |
| 90e3cdf2 JJ |
3613 | return count; |
| 3614 | } | |
| 5bd4f169 | 3615 | \f |
| 65f38f15 AM |
3616 | /* The following functions are specific to the ELF linker, while |
| 3617 | functions above are used generally. Those named ppc64_elf_* are | |
| 3618 | called by the main ELF linker code. They appear in this file more | |
| 3619 | or less in the order in which they are called. eg. | |
| 3620 | ppc64_elf_check_relocs is called early in the link process, | |
| 3621 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3622 | called. |
| 3623 | ||
| 3624 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3625 | functions have both a function code symbol and a function descriptor | |
| 3626 | symbol. A call to foo in a relocatable object file looks like: | |
| 3627 | ||
| 3628 | . .text | |
| 3629 | . x: | |
| 3630 | . bl .foo | |
| 3631 | . nop | |
| 3632 | ||
| 3633 | The function definition in another object file might be: | |
| 3634 | ||
| 3635 | . .section .opd | |
| 3636 | . foo: .quad .foo | |
| 3637 | . .quad .TOC.@tocbase | |
| 3638 | . .quad 0 | |
| 3639 | . | |
| 3640 | . .text | |
| 3641 | . .foo: blr | |
| 3642 | ||
| 3643 | When the linker resolves the call during a static link, the branch | |
| 3644 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3645 | If the function definition is in a shared library, things are a little | |
| 3646 | different: The call goes via a plt call stub, the opd information gets | |
| 3647 | copied to the plt, and the linker patches the nop. | |
| 3648 | ||
| 3649 | . x: | |
| 3650 | . bl .foo_stub | |
| 3651 | . ld 2,40(1) | |
| 3652 | . | |
| 3653 | . | |
| 3654 | . .foo_stub: | |
| 71a39c98 AM |
3655 | . std 2,40(1) # in practice, the call stub |
| 3656 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3657 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3658 | . ld 12,0(11) | |
| 3659 | . ld 2,8(11) | |
| 3660 | . mtctr 12 | |
| 3661 | . ld 11,16(11) | |
| e86ce104 AM |
3662 | . bctr |
| 3663 | . | |
| 3664 | . .section .plt | |
| 3665 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3666 | ||
| 3667 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3668 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3669 | copying. | |
| 3670 | ||
| 3671 | What are the difficulties here? Well, firstly, the relocations | |
| 3672 | examined by the linker in check_relocs are against the function code | |
| 3673 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3674 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3675 | to carefully copy dynamic link information from one symbol to the other. | |
| 3676 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3677 | symbol as is normal for most other backends. We need foo dynamic | |
| 3678 | instead, at least for an application final link. However, when | |
| 3679 | creating a shared library containing foo, we need to have both symbols | |
| 3680 | dynamic so that references to .foo are satisfied during the early | |
| 3681 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3682 | definition from some other object, eg. a static library. |
| 3683 | ||
| 3684 | Update: As of August 2004, we support a new convention. Function | |
| 3685 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3686 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3687 | |
| 1d483afe | 3688 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3689 | selects those that must be copied when linking a shared library, |
| 3690 | even when the symbol is local. */ | |
| 65f38f15 | 3691 | |
| 1d483afe AM |
3692 | static int |
| 3693 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3694 | enum elf_ppc64_reloc_type r_type) | |
| 3695 | { | |
| 3696 | switch (r_type) | |
| 3697 | { | |
| 3698 | default: | |
| 3699 | return 1; | |
| 3700 | ||
| 3701 | case R_PPC64_REL32: | |
| 3702 | case R_PPC64_REL64: | |
| 3703 | case R_PPC64_REL30: | |
| 3704 | return 0; | |
| 3705 | ||
| 3706 | case R_PPC64_TPREL16: | |
| 3707 | case R_PPC64_TPREL16_LO: | |
| 3708 | case R_PPC64_TPREL16_HI: | |
| 3709 | case R_PPC64_TPREL16_HA: | |
| 3710 | case R_PPC64_TPREL16_DS: | |
| 3711 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3712 | case R_PPC64_TPREL16_HIGH: |
| 3713 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3714 | case R_PPC64_TPREL16_HIGHER: |
| 3715 | case R_PPC64_TPREL16_HIGHERA: | |
| 3716 | case R_PPC64_TPREL16_HIGHEST: | |
| 3717 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3718 | case R_PPC64_TPREL64: | |
| 3719 | return !info->executable; | |
| 3720 | } | |
| 3721 | } | |
| 65f38f15 | 3722 | |
| f4656909 AM |
3723 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3724 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3725 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3726 | shared lib. With code that gcc generates, it's vital that this be |
| 3727 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3728 | the address of a function descriptor, which resides in the .opd | |
| 3729 | section. gcc uses the descriptor directly rather than going via the | |
| 3730 | GOT as some other ABI's do, which means that initialized function | |
| 3731 | pointers must reference the descriptor. Thus, a function pointer | |
| 3732 | initialized to the address of a function in a shared library will | |
| 3733 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3734 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3735 | presents a problem as a plt entry for that function is also |
| 3736 | initialized from the function descriptor symbol and the copy reloc | |
| 3737 | may not be initialized first. */ | |
| a23b6845 | 3738 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3739 | |
| 721956f4 | 3740 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3741 | string. */ |
| 3742 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3743 | |
| 3744 | /* Linker stubs. | |
| 3745 | ppc_stub_long_branch: | |
| 3746 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3747 | destination, but a 24 bit branch in a stub section will reach. | |
| 3748 | . b dest | |
| 3749 | ||
| 3750 | ppc_stub_plt_branch: | |
| 3751 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3752 | reach its destination. | |
| 71a39c98 AM |
3753 | . addis %r11,%r2,xxx@toc@ha |
| 3754 | . ld %r12,xxx@toc@l(%r11) | |
| 3755 | . mtctr %r12 | |
| 721956f4 AM |
3756 | . bctr |
| 3757 | ||
| 3758 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3759 | Used to call a function in a shared library. If it so happens that |
| 3760 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3761 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3762 | . std %r2,40(%r1) |
| 71a39c98 AM |
3763 | . addis %r11,%r2,xxx@toc@ha |
| 3764 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3765 | . mtctr %r12 | |
| 3766 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3767 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3768 | . bctr |
| ad8e1ba5 AM |
3769 | |
| 3770 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3771 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3772 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3773 | . std %r2,40(%r1) | |
| 3774 | . addis %r2,%r2,off@ha | |
| 3775 | . addi %r2,%r2,off@l | |
| 3776 | . b dest | |
| 3777 | ||
| 3778 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3779 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3780 | . addis %r11,%r2,xxx@toc@ha |
| 3781 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3782 | . addis %r2,%r2,off@ha |
| 3783 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3784 | . mtctr %r12 |
| ad8e1ba5 | 3785 | . bctr |
| ac2df442 AM |
3786 | |
| 3787 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3788 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3789 | */ |
| 3790 | ||
| 3791 | enum ppc_stub_type { | |
| 3792 | ppc_stub_none, | |
| 3793 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3794 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3795 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3796 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3797 | ppc_stub_plt_call, |
| 7341d5e2 AM |
3798 | ppc_stub_plt_call_r2save, |
| 3799 | ppc_stub_global_entry | |
| 721956f4 AM |
3800 | }; |
| 3801 | ||
| 3802 | struct ppc_stub_hash_entry { | |
| 3803 | ||
| 3804 | /* Base hash table entry structure. */ | |
| 3805 | struct bfd_hash_entry root; | |
| 3806 | ||
| ad8e1ba5 AM |
3807 | enum ppc_stub_type stub_type; |
| 3808 | ||
| 721956f4 AM |
3809 | /* The stub section. */ |
| 3810 | asection *stub_sec; | |
| 3811 | ||
| 3812 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3813 | bfd_vma stub_offset; | |
| 3814 | ||
| 3815 | /* Given the symbol's value and its section we can determine its final | |
| 3816 | value when building the stubs (so the stub knows where to jump. */ | |
| 3817 | bfd_vma target_value; | |
| 3818 | asection *target_section; | |
| 3819 | ||
| 721956f4 AM |
3820 | /* The symbol table entry, if any, that this was derived from. */ |
| 3821 | struct ppc_link_hash_entry *h; | |
| e054468f | 3822 | struct plt_entry *plt_ent; |
| 721956f4 AM |
3823 | |
| 3824 | /* Where this stub is being called from, or, in the case of combined | |
| 3825 | stub sections, the first input section in the group. */ | |
| 3826 | asection *id_sec; | |
| 6911b7dc AM |
3827 | |
| 3828 | /* Symbol st_other. */ | |
| 3829 | unsigned char other; | |
| 721956f4 AM |
3830 | }; |
| 3831 | ||
| 3832 | struct ppc_branch_hash_entry { | |
| 3833 | ||
| 3834 | /* Base hash table entry structure. */ | |
| 3835 | struct bfd_hash_entry root; | |
| 3836 | ||
| c456f082 | 3837 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3838 | unsigned int offset; |
| 3839 | ||
| 3840 | /* Generation marker. */ | |
| 3841 | unsigned int iter; | |
| 3842 | }; | |
| 65f38f15 | 3843 | |
| 19e08130 AM |
3844 | /* Used to track dynamic relocations for local symbols. */ |
| 3845 | struct ppc_dyn_relocs | |
| 3846 | { | |
| 3847 | struct ppc_dyn_relocs *next; | |
| 3848 | ||
| 3849 | /* The input section of the reloc. */ | |
| 3850 | asection *sec; | |
| 3851 | ||
| 3852 | /* Total number of relocs copied for the input section. */ | |
| 3853 | unsigned int count : 31; | |
| 3854 | ||
| 3855 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3856 | unsigned int ifunc : 1; | |
| 3857 | }; | |
| 3858 | ||
| 65f38f15 AM |
3859 | struct ppc_link_hash_entry |
| 3860 | { | |
| 3861 | struct elf_link_hash_entry elf; | |
| 3862 | ||
| b3fac117 AM |
3863 | union { |
| 3864 | /* A pointer to the most recently used stub hash entry against this | |
| 3865 | symbol. */ | |
| 3866 | struct ppc_stub_hash_entry *stub_cache; | |
| 3867 | ||
| 3868 | /* A pointer to the next symbol starting with a '.' */ | |
| 3869 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3870 | } u; | |
| 721956f4 | 3871 | |
| 65f38f15 | 3872 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3873 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3874 | |
| 721956f4 | 3875 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3876 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3877 | |
| e86ce104 AM |
3878 | /* Flag function code and descriptor symbols. */ |
| 3879 | unsigned int is_func:1; | |
| 3880 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3881 | unsigned int fake:1; |
| 411e1bfb | 3882 | |
| c5614fa4 AM |
3883 | /* Whether global opd/toc sym has been adjusted or not. |
| 3884 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3885 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3886 | unsigned int adjust_done:1; |
| 3887 | ||
| 99877b66 AM |
3888 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3889 | unsigned int was_undefined:1; | |
| 3890 | ||
| 411e1bfb | 3891 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3892 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3893 | corresponding relocs are encountered during check_relocs. | |
| 3894 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3895 | indicate the corresponding GOT entry type is not needed. | |
| 3896 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3897 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3898 | just for convenience in distinguishing the two cases. */ | |
| 3899 | #define TLS_GD 1 /* GD reloc. */ | |
| 3900 | #define TLS_LD 2 /* LD reloc. */ | |
| 3901 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3902 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3903 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 3904 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 3905 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 3906 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 3907 | unsigned char tls_mask; |
| 65f38f15 AM |
3908 | }; |
| 3909 | ||
| 3910 | /* ppc64 ELF linker hash table. */ | |
| 3911 | ||
| 3912 | struct ppc_link_hash_table | |
| 3913 | { | |
| 3914 | struct elf_link_hash_table elf; | |
| 3915 | ||
| 721956f4 AM |
3916 | /* The stub hash table. */ |
| 3917 | struct bfd_hash_table stub_hash_table; | |
| 3918 | ||
| 3919 | /* Another hash table for plt_branch stubs. */ | |
| 3920 | struct bfd_hash_table branch_hash_table; | |
| 3921 | ||
| 3b421ab3 AM |
3922 | /* Hash table for function prologue tocsave. */ |
| 3923 | htab_t tocsave_htab; | |
| 3924 | ||
| e7d1c40c AM |
3925 | /* Various options and other info passed from the linker. */ |
| 3926 | struct ppc64_elf_params *params; | |
| 721956f4 AM |
3927 | |
| 3928 | /* Array to keep track of which stub sections have been created, and | |
| 3929 | information on stub grouping. */ | |
| 3930 | struct map_stub { | |
| 3931 | /* This is the section to which stubs in the group will be attached. */ | |
| 3932 | asection *link_sec; | |
| 3933 | /* The stub section. */ | |
| 3934 | asection *stub_sec; | |
| ad8e1ba5 AM |
3935 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
| 3936 | bfd_vma toc_off; | |
| 721956f4 AM |
3937 | } *stub_group; |
| 3938 | ||
| ad8e1ba5 AM |
3939 | /* Temp used when calculating TOC pointers. */ |
| 3940 | bfd_vma toc_curr; | |
| bf102f86 AM |
3941 | bfd *toc_bfd; |
| 3942 | asection *toc_first_sec; | |
| ad8e1ba5 | 3943 | |
| 8f3bab57 AM |
3944 | /* Highest input section id. */ |
| 3945 | int top_id; | |
| 3946 | ||
| 734b6cf9 AM |
3947 | /* Highest output section index. */ |
| 3948 | int top_index; | |
| 3949 | ||
| b3fac117 AM |
3950 | /* Used when adding symbols. */ |
| 3951 | struct ppc_link_hash_entry *dot_syms; | |
| 3952 | ||
| 734b6cf9 AM |
3953 | /* List of input sections for each output section. */ |
| 3954 | asection **input_list; | |
| 721956f4 | 3955 | |
| 33e44f2e | 3956 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 AM |
3957 | asection *dynbss; |
| 3958 | asection *relbss; | |
| 3959 | asection *glink; | |
| 82bd7b59 | 3960 | asection *sfpr; |
| 4ce794b7 AM |
3961 | asection *brlt; |
| 3962 | asection *relbrlt; | |
| 58d180e8 | 3963 | asection *glink_eh_frame; |
| ec338859 | 3964 | |
| 8387904d AM |
3965 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 3966 | struct ppc_link_hash_entry *tls_get_addr; | |
| 3967 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 3968 | |
| 927be08e AM |
3969 | /* The size of reliplt used by got entry relocs. */ |
| 3970 | bfd_size_type got_reli_size; | |
| 3971 | ||
| 9b5ecbd0 | 3972 | /* Statistics. */ |
| 7341d5e2 | 3973 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 3974 | |
| ee75fd95 AM |
3975 | /* Number of stubs against global syms. */ |
| 3976 | unsigned long stub_globals; | |
| 3977 | ||
| ee67d69a AM |
3978 | /* Set if we're linking code with function descriptors. */ |
| 3979 | unsigned int opd_abi:1; | |
| 3980 | ||
| 4c52953f | 3981 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 3982 | unsigned int do_multi_toc:1; |
| 4c52953f | 3983 | unsigned int multi_toc_needed:1; |
| 927be08e | 3984 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 3985 | unsigned int do_toc_opt:1; |
| 4c52953f | 3986 | |
| 5d1634d7 | 3987 | /* Set on error. */ |
| 99877b66 | 3988 | unsigned int stub_error:1; |
| 721956f4 | 3989 | |
| f6c7c3e8 | 3990 | /* Temp used by ppc64_elf_before_check_relocs. */ |
| 99877b66 | 3991 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
3992 | |
| 3993 | /* Incremented every time we size stubs. */ | |
| 3994 | unsigned int stub_iteration; | |
| 5d1634d7 | 3995 | |
| 87d72d41 AM |
3996 | /* Small local sym cache. */ |
| 3997 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
3998 | }; |
| 3999 | ||
| 4c52953f AM |
4000 | /* Rename some of the generic section flags to better document how they |
| 4001 | are used here. */ | |
| b0dddeec AM |
4002 | |
| 4003 | /* Nonzero if this section has TLS related relocations. */ | |
| 4004 | #define has_tls_reloc sec_flg0 | |
| 4005 | ||
| 4006 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4007 | #define has_tls_get_addr_call sec_flg1 | |
| 4008 | ||
| 4009 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4010 | #define has_toc_reloc sec_flg2 | |
| 4011 | ||
| 4012 | /* Nonzero if this section has a call to another section that uses | |
| 4013 | the toc or got. */ | |
| d77c8a4b | 4014 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4015 | |
| 4016 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4017 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4018 | #define call_check_done sec_flg5 |
| 4c52953f | 4019 | |
| 65f38f15 AM |
4020 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4021 | ||
| 4022 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4023 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4024 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4025 | |
| 721956f4 AM |
4026 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4027 | ((struct ppc_stub_hash_entry *) \ | |
| 4028 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4029 | ||
| 4030 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4031 | ((struct ppc_branch_hash_entry *) \ | |
| 4032 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4033 | ||
| 4034 | /* Create an entry in the stub hash table. */ | |
| 4035 | ||
| 4036 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4037 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4038 | struct bfd_hash_table *table, | |
| 4039 | const char *string) | |
| 721956f4 AM |
4040 | { |
| 4041 | /* Allocate the structure if it has not already been allocated by a | |
| 4042 | subclass. */ | |
| 4043 | if (entry == NULL) | |
| 4044 | { | |
| 4045 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4046 | if (entry == NULL) | |
| 4047 | return entry; | |
| 4048 | } | |
| 4049 | ||
| 4050 | /* Call the allocation method of the superclass. */ | |
| 4051 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4052 | if (entry != NULL) | |
| 4053 | { | |
| 4054 | struct ppc_stub_hash_entry *eh; | |
| 4055 | ||
| 4056 | /* Initialize the local fields. */ | |
| 4057 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4058 | eh->stub_type = ppc_stub_none; |
| 721956f4 AM |
4059 | eh->stub_sec = NULL; |
| 4060 | eh->stub_offset = 0; | |
| 4061 | eh->target_value = 0; | |
| 4062 | eh->target_section = NULL; | |
| 721956f4 | 4063 | eh->h = NULL; |
| 6911b7dc | 4064 | eh->plt_ent = NULL; |
| 721956f4 | 4065 | eh->id_sec = NULL; |
| 6911b7dc | 4066 | eh->other = 0; |
| 721956f4 AM |
4067 | } |
| 4068 | ||
| 4069 | return entry; | |
| 4070 | } | |
| 4071 | ||
| 4072 | /* Create an entry in the branch hash table. */ | |
| 4073 | ||
| 4074 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4075 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4076 | struct bfd_hash_table *table, | |
| 4077 | const char *string) | |
| 721956f4 AM |
4078 | { |
| 4079 | /* Allocate the structure if it has not already been allocated by a | |
| 4080 | subclass. */ | |
| 4081 | if (entry == NULL) | |
| 4082 | { | |
| 4083 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4084 | if (entry == NULL) | |
| 4085 | return entry; | |
| 4086 | } | |
| 4087 | ||
| 4088 | /* Call the allocation method of the superclass. */ | |
| 4089 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4090 | if (entry != NULL) | |
| 4091 | { | |
| 4092 | struct ppc_branch_hash_entry *eh; | |
| 4093 | ||
| 4094 | /* Initialize the local fields. */ | |
| 4095 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4096 | eh->offset = 0; | |
| 4097 | eh->iter = 0; | |
| 4098 | } | |
| 4099 | ||
| 4100 | return entry; | |
| 4101 | } | |
| 4102 | ||
| 65f38f15 AM |
4103 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4104 | ||
| 4105 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4106 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4107 | struct bfd_hash_table *table, | |
| 4108 | const char *string) | |
| 65f38f15 AM |
4109 | { |
| 4110 | /* Allocate the structure if it has not already been allocated by a | |
| 4111 | subclass. */ | |
| 4112 | if (entry == NULL) | |
| 4113 | { | |
| 4114 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4115 | if (entry == NULL) | |
| 4116 | return entry; | |
| 4117 | } | |
| 4118 | ||
| 4119 | /* Call the allocation method of the superclass. */ | |
| 4120 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4121 | if (entry != NULL) | |
| 4122 | { | |
| 4123 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4124 | ||
| b3fac117 | 4125 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4126 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4127 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4128 | ||
| 4129 | /* When making function calls, old ABI code references function entry | |
| 4130 | points (dot symbols), while new ABI code references the function | |
| 4131 | descriptor symbol. We need to make any combination of reference and | |
| 4132 | definition work together, without breaking archive linking. | |
| 4133 | ||
| 4134 | For a defined function "foo" and an undefined call to "bar": | |
| 4135 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4136 | "bar" too). | |
| 4137 | A new object defines "foo" and references "bar". | |
| 4138 | ||
| 4139 | A new object thus has no problem with its undefined symbols being | |
| 4140 | satisfied by definitions in an old object. On the other hand, the | |
| 4141 | old object won't have ".bar" satisfied by a new object. | |
| 4142 | ||
| 4143 | Keep a list of newly added dot-symbols. */ | |
| 4144 | ||
| 4145 | if (string[0] == '.') | |
| 4146 | { | |
| 4147 | struct ppc_link_hash_table *htab; | |
| 4148 | ||
| 4149 | htab = (struct ppc_link_hash_table *) table; | |
| 4150 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4151 | htab->dot_syms = eh; | |
| 4152 | } | |
| 65f38f15 AM |
4153 | } |
| 4154 | ||
| 4155 | return entry; | |
| 4156 | } | |
| 4157 | ||
| 3b421ab3 AM |
4158 | struct tocsave_entry { |
| 4159 | asection *sec; | |
| 4160 | bfd_vma offset; | |
| 4161 | }; | |
| 4162 | ||
| 4163 | static hashval_t | |
| 4164 | tocsave_htab_hash (const void *p) | |
| 4165 | { | |
| 4166 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4167 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4168 | } | |
| 4169 | ||
| 4170 | static int | |
| 4171 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4172 | { | |
| 4173 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4174 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4175 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4176 | } | |
| 4177 | ||
| 68faa637 AM |
4178 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4179 | ||
| 4180 | static void | |
| d495ab0d | 4181 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4182 | { |
| d495ab0d | 4183 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4184 | |
| d495ab0d | 4185 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4186 | if (htab->tocsave_htab) |
| 4187 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4188 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4189 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4190 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4191 | } |
| 4192 | ||
| 65f38f15 AM |
4193 | /* Create a ppc64 ELF linker hash table. */ |
| 4194 | ||
| 4195 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4196 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4197 | { |
| 4198 | struct ppc_link_hash_table *htab; | |
| 4199 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4200 | ||
| 4ce794b7 | 4201 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4202 | if (htab == NULL) |
| 4203 | return NULL; | |
| 4204 | ||
| 66eb6687 | 4205 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4206 | sizeof (struct ppc_link_hash_entry), |
| 4207 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4208 | { |
| e2d34d7d | 4209 | free (htab); |
| 65f38f15 AM |
4210 | return NULL; |
| 4211 | } | |
| 4212 | ||
| 721956f4 | 4213 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4214 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4215 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4216 | { |
| d495ab0d | 4217 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4218 | return NULL; |
| 4219 | } | |
| 721956f4 AM |
4220 | |
| 4221 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4222 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4223 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4224 | { |
| 4225 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4226 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4227 | return NULL; |
| 4228 | } | |
| 721956f4 | 4229 | |
| 3b421ab3 AM |
4230 | htab->tocsave_htab = htab_try_create (1024, |
| 4231 | tocsave_htab_hash, | |
| 4232 | tocsave_htab_eq, | |
| 4233 | NULL); | |
| 4234 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4235 | { |
| d495ab0d | 4236 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4237 | return NULL; |
| 4238 | } | |
| d495ab0d | 4239 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4240 | |
| 3254fd24 AM |
4241 | /* Initializing two fields of the union is just cosmetic. We really |
| 4242 | only care about glist, but when compiled on a 32-bit host the | |
| 4243 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4244 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4245 | htab->elf.init_got_refcount.refcount = 0; |
| 4246 | htab->elf.init_got_refcount.glist = NULL; | |
| 4247 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4248 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4249 | htab->elf.init_got_offset.offset = 0; | |
| 4250 | htab->elf.init_got_offset.glist = NULL; | |
| 4251 | htab->elf.init_plt_offset.offset = 0; | |
| 4252 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4253 | |
| 65f38f15 AM |
4254 | return &htab->elf.root; |
| 4255 | } | |
| 4256 | ||
| bfeb4a28 AM |
4257 | /* Create sections for linker generated code. */ |
| 4258 | ||
| 4259 | static bfd_boolean | |
| 4260 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4261 | { | |
| 4262 | struct ppc_link_hash_table *htab; | |
| 4263 | flagword flags; | |
| 4264 | ||
| 4265 | htab = ppc_hash_table (info); | |
| 4266 | ||
| 4267 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4268 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
| 4269 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4270 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4271 | flags); | |
| 4272 | if (htab->sfpr == NULL | |
| 4273 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4274 | return FALSE; | |
| 4275 | ||
| 4276 | /* Create .glink for lazy dynamic linking support. */ | |
| 4277 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4278 | flags); | |
| 4279 | if (htab->glink == NULL | |
| 4280 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4281 | return FALSE; | |
| 4282 | ||
| 4283 | if (!info->no_ld_generated_unwind_info) | |
| 4284 | { | |
| 4285 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4286 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4287 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4288 | ".eh_frame", | |
| 4289 | flags); | |
| 4290 | if (htab->glink_eh_frame == NULL | |
| 4291 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4292 | return FALSE; | |
| 4293 | } | |
| 4294 | ||
| 4295 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4296 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4297 | if (htab->elf.iplt == NULL | |
| 4298 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4299 | return FALSE; |
| 4300 | ||
| 4301 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4302 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4303 | htab->elf.irelplt |
| 4304 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4305 | if (htab->elf.irelplt == NULL | |
| 4306 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4307 | return FALSE; |
| 4308 | ||
| 4309 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4310 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4311 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4312 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4313 | flags); | |
| 4314 | if (htab->brlt == NULL | |
| 4315 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4316 | return FALSE; | |
| 4317 | ||
| 4318 | if (!info->shared) | |
| 4319 | return TRUE; | |
| 4320 | ||
| 4321 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4322 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4323 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4324 | ".rela.branch_lt", | |
| 4325 | flags); | |
| 4326 | if (htab->relbrlt == NULL | |
| 4327 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4328 | return FALSE; | |
| 4329 | ||
| 4330 | return TRUE; | |
| 4331 | } | |
| 4332 | ||
| e717da7e AM |
4333 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4334 | ||
| bfeb4a28 | 4335 | bfd_boolean |
| e7d1c40c AM |
4336 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4337 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4338 | { |
| 4339 | struct ppc_link_hash_table *htab; | |
| 4340 | ||
| e7d1c40c | 4341 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4342 | |
| 4343 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4344 | linker created stub bfd. This ensures that the GOT header is at | |
| 4345 | the start of the output TOC section. */ | |
| 4346 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4347 | if (htab == NULL) |
| bfeb4a28 | 4348 | return FALSE; |
| e7d1c40c AM |
4349 | htab->elf.dynobj = params->stub_bfd; |
| 4350 | htab->params = params; | |
| bfeb4a28 AM |
4351 | |
| 4352 | if (info->relocatable) | |
| 4353 | return TRUE; | |
| 4354 | ||
| 4355 | return create_linkage_sections (htab->elf.dynobj, info); | |
| e717da7e AM |
4356 | } |
| 4357 | ||
| 721956f4 AM |
4358 | /* Build a name for an entry in the stub hash table. */ |
| 4359 | ||
| 4360 | static char * | |
| 4ce794b7 AM |
4361 | ppc_stub_name (const asection *input_section, |
| 4362 | const asection *sym_sec, | |
| 4363 | const struct ppc_link_hash_entry *h, | |
| 4364 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4365 | { |
| 4366 | char *stub_name; | |
| bcaa2f82 | 4367 | ssize_t len; |
| 721956f4 AM |
4368 | |
| 4369 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4370 | offsets from a sym as a branch target? In fact, we could | |
| 4371 | probably assume the addend is always zero. */ | |
| 4372 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4373 | ||
| 4374 | if (h) | |
| 4375 | { | |
| 4376 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4377 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4378 | if (stub_name == NULL) |
| 4379 | return stub_name; | |
| 4380 | ||
| bcaa2f82 AM |
4381 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4382 | input_section->id & 0xffffffff, | |
| 4383 | h->elf.root.root.string, | |
| 4384 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4385 | } |
| 4386 | else | |
| 4387 | { | |
| ad8e1ba5 | 4388 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4389 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4390 | if (stub_name == NULL) |
| 4391 | return stub_name; | |
| 4392 | ||
| bcaa2f82 AM |
4393 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4394 | input_section->id & 0xffffffff, | |
| 4395 | sym_sec->id & 0xffffffff, | |
| 4396 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4397 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4398 | } |
| bcaa2f82 | 4399 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4400 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4401 | return stub_name; |
| 4402 | } | |
| 4403 | ||
| 4404 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4405 | creating the stub name takes a bit of time. */ | |
| 4406 | ||
| 4407 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4408 | ppc_get_stub_entry (const asection *input_section, |
| 4409 | const asection *sym_sec, | |
| 039b3fef | 4410 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4411 | const Elf_Internal_Rela *rel, |
| 4412 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4413 | { |
| 4414 | struct ppc_stub_hash_entry *stub_entry; | |
| 721956f4 AM |
4415 | const asection *id_sec; |
| 4416 | ||
| 4417 | /* If this input section is part of a group of sections sharing one | |
| 4418 | stub section, then use the id of the first section in the group. | |
| 4419 | Stub names need to include a section id, as there may well be | |
| 4420 | more than one stub used to reach say, printf, and we need to | |
| 4421 | distinguish between them. */ | |
| 4422 | id_sec = htab->stub_group[input_section->id].link_sec; | |
| 4423 | ||
| b3fac117 AM |
4424 | if (h != NULL && h->u.stub_cache != NULL |
| 4425 | && h->u.stub_cache->h == h | |
| 4426 | && h->u.stub_cache->id_sec == id_sec) | |
| 721956f4 | 4427 | { |
| b3fac117 | 4428 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4429 | } |
| 4430 | else | |
| 4431 | { | |
| 4432 | char *stub_name; | |
| 4433 | ||
| 4434 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
| 4435 | if (stub_name == NULL) | |
| 4436 | return NULL; | |
| 4437 | ||
| 4438 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4439 | stub_name, FALSE, FALSE); |
| 721956f4 | 4440 | if (h != NULL) |
| b3fac117 | 4441 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4442 | |
| 4443 | free (stub_name); | |
| 4444 | } | |
| 4445 | ||
| 4446 | return stub_entry; | |
| 4447 | } | |
| 4448 | ||
| 4449 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4450 | stub entry are initialised. */ | |
| 4451 | ||
| 4452 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4453 | ppc_add_stub (const char *stub_name, |
| 4454 | asection *section, | |
| 25f53a85 | 4455 | struct bfd_link_info *info) |
| 721956f4 | 4456 | { |
| 25f53a85 | 4457 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 721956f4 AM |
4458 | asection *link_sec; |
| 4459 | asection *stub_sec; | |
| 4460 | struct ppc_stub_hash_entry *stub_entry; | |
| 4461 | ||
| 4462 | link_sec = htab->stub_group[section->id].link_sec; | |
| 4463 | stub_sec = htab->stub_group[section->id].stub_sec; | |
| 4464 | if (stub_sec == NULL) | |
| 4465 | { | |
| 4466 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
| 4467 | if (stub_sec == NULL) | |
| 4468 | { | |
| d4c88bbb | 4469 | size_t namelen; |
| 721956f4 AM |
4470 | bfd_size_type len; |
| 4471 | char *s_name; | |
| 4472 | ||
| d4c88bbb AM |
4473 | namelen = strlen (link_sec->name); |
| 4474 | len = namelen + sizeof (STUB_SUFFIX); | |
| e7d1c40c | 4475 | s_name = bfd_alloc (htab->params->stub_bfd, len); |
| 721956f4 AM |
4476 | if (s_name == NULL) |
| 4477 | return NULL; | |
| 4478 | ||
| d4c88bbb AM |
4479 | memcpy (s_name, link_sec->name, namelen); |
| 4480 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| e7d1c40c | 4481 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); |
| 721956f4 AM |
4482 | if (stub_sec == NULL) |
| 4483 | return NULL; | |
| 4484 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
| 4485 | } | |
| 4486 | htab->stub_group[section->id].stub_sec = stub_sec; | |
| 4487 | } | |
| 4488 | ||
| 4489 | /* Enter this entry into the linker stub hash table. */ | |
| 4490 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4491 | TRUE, FALSE); |
| 721956f4 AM |
4492 | if (stub_entry == NULL) |
| 4493 | { | |
| 8de848d8 | 4494 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4495 | section->owner, stub_name); |
| 721956f4 AM |
4496 | return NULL; |
| 4497 | } | |
| 4498 | ||
| 4499 | stub_entry->stub_sec = stub_sec; | |
| 4500 | stub_entry->stub_offset = 0; | |
| 4501 | stub_entry->id_sec = link_sec; | |
| 4502 | return stub_entry; | |
| 4503 | } | |
| 4504 | ||
| e717da7e AM |
4505 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4506 | not already done. */ | |
| 65f38f15 | 4507 | |
| b34976b6 | 4508 | static bfd_boolean |
| e717da7e | 4509 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4510 | { |
| e717da7e AM |
4511 | asection *got, *relgot; |
| 4512 | flagword flags; | |
| 4513 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4514 | |
| 0c8d6e5c | 4515 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4516 | return FALSE; |
| 4dfe6ac6 NC |
4517 | if (htab == NULL) |
| 4518 | return FALSE; | |
| 0ffa91dd | 4519 | |
| 33e44f2e AM |
4520 | if (!htab->elf.sgot |
| 4521 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4522 | return FALSE; | |
| e717da7e AM |
4523 | |
| 4524 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4525 | | SEC_LINKER_CREATED); | |
| 4526 | ||
| c456f082 | 4527 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4528 | if (!got |
| e717da7e AM |
4529 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4530 | return FALSE; | |
| 65f38f15 | 4531 | |
| c456f082 AM |
4532 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4533 | flags | SEC_READONLY); | |
| e717da7e | 4534 | if (!relgot |
| e717da7e | 4535 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4536 | return FALSE; |
| e717da7e AM |
4537 | |
| 4538 | ppc64_elf_tdata (abfd)->got = got; | |
| 4539 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4540 | return TRUE; |
| 65f38f15 | 4541 | } |
| 5bd4f169 | 4542 | |
| 82bd7b59 | 4543 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4544 | |
| b34976b6 | 4545 | static bfd_boolean |
| 4ce794b7 | 4546 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4547 | { |
| 65f38f15 | 4548 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4549 | |
| 65f38f15 | 4550 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4551 | return FALSE; |
| 65f38f15 | 4552 | |
| e717da7e | 4553 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4554 | if (htab == NULL) |
| 4555 | return FALSE; | |
| 4556 | ||
| 3d4d4302 | 4557 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
| 65f38f15 | 4558 | if (!info->shared) |
| 3d4d4302 | 4559 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4560 | |
| 33e44f2e | 4561 | if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss |
| 4ce794b7 | 4562 | || (!info->shared && !htab->relbss)) |
| 65f38f15 AM |
4563 | abort (); |
| 4564 | ||
| b34976b6 | 4565 | return TRUE; |
| 5bd4f169 AM |
4566 | } |
| 4567 | ||
| b31867b6 AM |
4568 | /* Follow indirect and warning symbol links. */ |
| 4569 | ||
| 4570 | static inline struct bfd_link_hash_entry * | |
| 4571 | follow_link (struct bfd_link_hash_entry *h) | |
| 4572 | { | |
| 4573 | while (h->type == bfd_link_hash_indirect | |
| 4574 | || h->type == bfd_link_hash_warning) | |
| 4575 | h = h->u.i.link; | |
| 4576 | return h; | |
| 4577 | } | |
| 4578 | ||
| 4579 | static inline struct elf_link_hash_entry * | |
| 4580 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4581 | { | |
| 4582 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4583 | } | |
| 4584 | ||
| 4585 | static inline struct ppc_link_hash_entry * | |
| 4586 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4587 | { | |
| 4588 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4589 | } | |
| 4590 | ||
| 40d16e0b AM |
4591 | /* Merge PLT info on FROM with that on TO. */ |
| 4592 | ||
| 4593 | static void | |
| 4594 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4595 | struct ppc_link_hash_entry *to) | |
| 4596 | { | |
| 4597 | if (from->elf.plt.plist != NULL) | |
| 4598 | { | |
| 4599 | if (to->elf.plt.plist != NULL) | |
| 4600 | { | |
| 4601 | struct plt_entry **entp; | |
| 4602 | struct plt_entry *ent; | |
| 4603 | ||
| 4604 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4605 | { | |
| 4606 | struct plt_entry *dent; | |
| 4607 | ||
| 4608 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4609 | if (dent->addend == ent->addend) | |
| 4610 | { | |
| 4611 | dent->plt.refcount += ent->plt.refcount; | |
| 4612 | *entp = ent->next; | |
| 4613 | break; | |
| 4614 | } | |
| 4615 | if (dent == NULL) | |
| 4616 | entp = &ent->next; | |
| 4617 | } | |
| 4618 | *entp = to->elf.plt.plist; | |
| 4619 | } | |
| 4620 | ||
| 4621 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4622 | from->elf.plt.plist = NULL; | |
| 4623 | } | |
| 4624 | } | |
| 4625 | ||
| 65f38f15 AM |
4626 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4627 | ||
| 4628 | static void | |
| fcfa13d2 AM |
4629 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4630 | struct elf_link_hash_entry *dir, | |
| 4631 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4632 | { |
| 4633 | struct ppc_link_hash_entry *edir, *eind; | |
| 4634 | ||
| 4635 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4636 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4637 | ||
| c79d6685 AM |
4638 | edir->is_func |= eind->is_func; |
| 4639 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4640 | edir->tls_mask |= eind->tls_mask; | |
| 4641 | if (eind->oh != NULL) | |
| 4642 | edir->oh = ppc_follow_link (eind->oh); | |
| 4643 | ||
| 4644 | /* If called to transfer flags for a weakdef during processing | |
| 4645 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4646 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4647 | if (!(ELIMINATE_COPY_RELOCS | |
| 4648 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4649 | && edir->elf.dynamic_adjusted)) | |
| 4650 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4651 | ||
| 4652 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4653 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4654 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4655 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| a345bc8d | 4656 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; |
| c79d6685 | 4657 | |
| 411e1bfb | 4658 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4659 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4660 | { |
| bbd7ec4a AM |
4661 | if (edir->dyn_relocs != NULL) |
| 4662 | { | |
| 6061a67d AM |
4663 | struct elf_dyn_relocs **pp; |
| 4664 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4665 | |
| fcfa13d2 | 4666 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4667 | list. Merge any entries against the same section. */ |
| 4668 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4669 | { | |
| 6061a67d | 4670 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4671 | |
| 4672 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4673 | if (q->sec == p->sec) | |
| 4674 | { | |
| 4675 | q->pc_count += p->pc_count; | |
| 4676 | q->count += p->count; | |
| 4677 | *pp = p->next; | |
| 4678 | break; | |
| 4679 | } | |
| 4680 | if (q == NULL) | |
| 4681 | pp = &p->next; | |
| 4682 | } | |
| 4683 | *pp = edir->dyn_relocs; | |
| 4684 | } | |
| 4685 | ||
| 65f38f15 AM |
4686 | edir->dyn_relocs = eind->dyn_relocs; |
| 4687 | eind->dyn_relocs = NULL; | |
| 4688 | } | |
| 65f38f15 | 4689 | |
| 68ba6d40 AM |
4690 | /* If we were called to copy over info for a weak sym, that's all. |
| 4691 | You might think dyn_relocs need not be copied over; After all, | |
| 4692 | both syms will be dynamic or both non-dynamic so we're just | |
| 68ffbac6 | 4693 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
| 68ba6d40 AM |
4694 | code in ppc64_elf_adjust_dynamic_symbol needs to check for |
| 4695 | dyn_relocs in read-only sections, and it does so on what is the | |
| 4696 | DIR sym here. */ | |
| 4697 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4698 | return; | |
| 4699 | ||
| 81848ca0 AM |
4700 | /* Copy over got entries that we may have already seen to the |
| 4701 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4702 | if (eind->elf.got.glist != NULL) |
| 4703 | { | |
| 4704 | if (edir->elf.got.glist != NULL) | |
| 4705 | { | |
| 4706 | struct got_entry **entp; | |
| 4707 | struct got_entry *ent; | |
| 4708 | ||
| 4709 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4710 | { | |
| 4711 | struct got_entry *dent; | |
| 4712 | ||
| 4713 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4714 | if (dent->addend == ent->addend | |
| e717da7e | 4715 | && dent->owner == ent->owner |
| 411e1bfb AM |
4716 | && dent->tls_type == ent->tls_type) |
| 4717 | { | |
| 4718 | dent->got.refcount += ent->got.refcount; | |
| 4719 | *entp = ent->next; | |
| 4720 | break; | |
| 4721 | } | |
| 4722 | if (dent == NULL) | |
| 4723 | entp = &ent->next; | |
| 4724 | } | |
| 4725 | *entp = edir->elf.got.glist; | |
| 4726 | } | |
| 4727 | ||
| 4728 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4729 | eind->elf.got.glist = NULL; | |
| 4730 | } | |
| 4731 | ||
| 4732 | /* And plt entries. */ | |
| 40d16e0b | 4733 | move_plt_plist (eind, edir); |
| 411e1bfb | 4734 | |
| fcfa13d2 | 4735 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4736 | { |
| fcfa13d2 AM |
4737 | if (edir->elf.dynindx != -1) |
| 4738 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4739 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4740 | edir->elf.dynindx = eind->elf.dynindx; |
| 4741 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4742 | eind->elf.dynindx = -1; | |
| 4743 | eind->elf.dynstr_index = 0; | |
| 4744 | } | |
| 411e1bfb AM |
4745 | } |
| 4746 | ||
| 8387904d AM |
4747 | /* Find the function descriptor hash entry from the given function code |
| 4748 | hash entry FH. Link the entries via their OH fields. */ | |
| 4749 | ||
| 4750 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4751 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4752 | { |
| 4753 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4754 | ||
| 4755 | if (fdh == NULL) | |
| 4756 | { | |
| 4757 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4758 | ||
| 4759 | fdh = (struct ppc_link_hash_entry *) | |
| 4760 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4761 | if (fdh == NULL) |
| 4762 | return fdh; | |
| 4763 | ||
| 4764 | fdh->is_func_descriptor = 1; | |
| 4765 | fdh->oh = fh; | |
| 4766 | fh->is_func = 1; | |
| 4767 | fh->oh = fdh; | |
| 8387904d AM |
4768 | } |
| 4769 | ||
| b31867b6 | 4770 | return ppc_follow_link (fdh); |
| 8387904d AM |
4771 | } |
| 4772 | ||
| bb700d78 AM |
4773 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4774 | ||
| 4775 | static struct ppc_link_hash_entry * | |
| 4776 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4777 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4778 | { |
| 4779 | bfd *abfd; | |
| 4780 | asymbol *newsym; | |
| 4781 | struct bfd_link_hash_entry *bh; | |
| 4782 | struct ppc_link_hash_entry *fdh; | |
| 4783 | ||
| 4784 | abfd = fh->elf.root.u.undef.abfd; | |
| 4785 | newsym = bfd_make_empty_symbol (abfd); | |
| 4786 | newsym->name = fh->elf.root.root.string + 1; | |
| 4787 | newsym->section = bfd_und_section_ptr; | |
| 4788 | newsym->value = 0; | |
| 908b32fc | 4789 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4790 | |
| 4791 | bh = NULL; | |
| 4792 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4793 | newsym->flags, newsym->section, | |
| 4794 | newsym->value, NULL, FALSE, FALSE, | |
| 4795 | &bh)) | |
| 4796 | return NULL; | |
| 4797 | ||
| 4798 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4799 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4800 | fdh->fake = 1; |
| 4801 | fdh->is_func_descriptor = 1; | |
| 4802 | fdh->oh = fh; | |
| 4803 | fh->is_func = 1; | |
| 4804 | fh->oh = fdh; | |
| bb700d78 AM |
4805 | return fdh; |
| 4806 | } | |
| 4807 | ||
| 8387904d AM |
4808 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4809 | function type. */ | |
| 555cd476 AM |
4810 | |
| 4811 | static bfd_boolean | |
| c16153ae | 4812 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4813 | struct bfd_link_info *info, |
| 555cd476 | 4814 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4815 | const char **name, |
| 555cd476 AM |
4816 | flagword *flags ATTRIBUTE_UNUSED, |
| 4817 | asection **sec, | |
| b53dfeb2 | 4818 | bfd_vma *value) |
| 555cd476 | 4819 | { |
| f1885d1e AM |
4820 | if ((ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| 4821 | || ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE) | |
| 4822 | && (ibfd->flags & DYNAMIC) == 0 | |
| 4823 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| 13a2df29 | 4824 | elf_tdata (info->output_bfd)->has_gnu_symbols = elf_gnu_symbol_any; |
| f64b2e8d | 4825 | |
| b53dfeb2 | 4826 | if (*sec != NULL |
| f1885d1e | 4827 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4828 | { |
| 4829 | asection *code_sec; | |
| 4830 | ||
| 4831 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4832 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4833 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4834 | ||
| 4835 | /* If the symbol is a function defined in .opd, and the function | |
| 4836 | code is in a discarded group, let it appear to be undefined. */ | |
| 4837 | if (!info->relocatable | |
| 4838 | && (*sec)->reloc_count != 0 | |
| 4839 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4840 | FALSE) != (bfd_vma) -1 | |
| 4841 | && discarded_section (code_sec)) | |
| 4842 | { | |
| 4843 | *sec = bfd_und_section_ptr; | |
| 4844 | isym->st_shndx = SHN_UNDEF; | |
| 4845 | } | |
| 4846 | } | |
| dbd1e97e AM |
4847 | else if (*sec != NULL |
| 4848 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4849 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4850 | { | |
| 4851 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4852 | if (htab != NULL) | |
| 4853 | htab->params->object_in_toc = 1; | |
| 4854 | } | |
| 433817dd | 4855 | |
| 6911b7dc AM |
4856 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4857 | { | |
| 4858 | if (abiversion (ibfd) == 0) | |
| 4859 | set_abiversion (ibfd, 2); | |
| 4860 | else if (abiversion (ibfd) == 1) | |
| 4861 | { | |
| 4862 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4863 | " for ABI version 1\n"), name); | |
| 4864 | bfd_set_error (bfd_error_bad_value); | |
| 4865 | return FALSE; | |
| 4866 | } | |
| 4867 | } | |
| 4868 | ||
| 555cd476 AM |
4869 | return TRUE; |
| 4870 | } | |
| 4871 | ||
| 6911b7dc AM |
4872 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4873 | ||
| 4874 | static void | |
| 4875 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4876 | const Elf_Internal_Sym *isym, | |
| 4877 | bfd_boolean definition, | |
| 4878 | bfd_boolean dynamic) | |
| 4879 | { | |
| 4880 | if (definition && !dynamic) | |
| 4881 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4882 | | ELF_ST_VISIBILITY (h->other)); | |
| 4883 | } | |
| 4884 | ||
| 8387904d | 4885 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
4886 | inclusion of a new ABI object archive that defines "bar". |
| 4887 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 4888 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
4889 | |
| 4890 | static struct elf_link_hash_entry * | |
| 4891 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 4892 | struct bfd_link_info *info, | |
| 4893 | const char *name) | |
| 4894 | { | |
| 4895 | struct elf_link_hash_entry *h; | |
| 4896 | char *dot_name; | |
| 4897 | size_t len; | |
| 4898 | ||
| 4899 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
4900 | if (h != NULL |
| 4901 | /* Don't return this sym if it is a fake function descriptor | |
| 4902 | created by add_symbol_adjust. */ | |
| 4903 | && !(h->root.type == bfd_link_hash_undefweak | |
| 4904 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
4905 | return h; |
| 4906 | ||
| 4907 | if (name[0] == '.') | |
| 4908 | return h; | |
| 4909 | ||
| 4910 | len = strlen (name); | |
| 4911 | dot_name = bfd_alloc (abfd, len + 2); | |
| 4912 | if (dot_name == NULL) | |
| 4913 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 4914 | dot_name[0] = '.'; | |
| 4915 | memcpy (dot_name + 1, name, len + 1); | |
| 4916 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 4917 | bfd_release (abfd, dot_name); | |
| 4918 | return h; | |
| 4919 | } | |
| 4920 | ||
| 4921 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
4922 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 4923 | are made weak. This stops later archive searches from including an | |
| 4924 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
4925 | prevents the linker complaining about undefined symbols. |
| 4926 | We also check and correct mismatched symbol visibility here. The | |
| 4927 | most restrictive visibility of the function descriptor and the | |
| 4928 | function entry symbol is used. */ | |
| 8387904d AM |
4929 | |
| 4930 | static bfd_boolean | |
| b3fac117 | 4931 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 4932 | { |
| 8387904d AM |
4933 | struct ppc_link_hash_table *htab; |
| 4934 | struct ppc_link_hash_entry *fdh; | |
| 4935 | ||
| b3fac117 | 4936 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 8387904d AM |
4937 | return TRUE; |
| 4938 | ||
| b3fac117 AM |
4939 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 4940 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 4941 | |
| b3fac117 AM |
4942 | if (eh->elf.root.root.string[0] != '.') |
| 4943 | abort (); | |
| 8387904d | 4944 | |
| b3fac117 | 4945 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4946 | if (htab == NULL) |
| 4947 | return FALSE; | |
| 4948 | ||
| b31867b6 AM |
4949 | fdh = lookup_fdh (eh, htab); |
| 4950 | if (fdh == NULL) | |
| 4951 | { | |
| 4952 | if (!info->relocatable | |
| 4953 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 4954 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 4955 | && eh->elf.ref_regular) | |
| 4956 | { | |
| 4957 | /* Make an undefweak function descriptor sym, which is enough to | |
| 4958 | pull in an --as-needed shared lib, but won't cause link | |
| 4959 | errors. Archives are handled elsewhere. */ | |
| 4960 | fdh = make_fdh (info, eh); | |
| 4961 | if (fdh == NULL) | |
| 4962 | return FALSE; | |
| 4963 | fdh->elf.ref_regular = 1; | |
| 4964 | } | |
| bb700d78 | 4965 | } |
| b31867b6 | 4966 | else |
| 8387904d | 4967 | { |
| 35b0ce59 AM |
4968 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 4969 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 4970 | if (entry_vis < descr_vis) | |
| 4971 | fdh->elf.other += entry_vis - descr_vis; | |
| 4972 | else if (entry_vis > descr_vis) | |
| 4973 | eh->elf.other += descr_vis - entry_vis; | |
| 4974 | ||
| e87d886e AM |
4975 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 4976 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 4977 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
4978 | { |
| 4979 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 4980 | eh->was_undefined = 1; | |
| 4981 | htab->twiddled_syms = 1; | |
| 4982 | } | |
| 8387904d | 4983 | } |
| 99877b66 | 4984 | |
| 8387904d AM |
4985 | return TRUE; |
| 4986 | } | |
| 4987 | ||
| f6c7c3e8 AM |
4988 | /* Set up opd section info and abiversion for IBFD, and process list |
| 4989 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 4990 | |
| 8387904d | 4991 | static bfd_boolean |
| f6c7c3e8 | 4992 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 4993 | { |
| 99877b66 | 4994 | struct ppc_link_hash_table *htab; |
| b3fac117 | 4995 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 4996 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 4997 | |
| 459609d6 | 4998 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 4999 | { |
| 459609d6 AM |
5000 | if (abiversion (ibfd) == 0) |
| 5001 | set_abiversion (ibfd, 1); | |
| 5002 | else if (abiversion (ibfd) == 2) | |
| f6c7c3e8 | 5003 | { |
| 459609d6 AM |
5004 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5005 | " version %d\n"), | |
| 5006 | ibfd, abiversion (ibfd)); | |
| 5007 | bfd_set_error (bfd_error_bad_value); | |
| 5008 | return FALSE; | |
| f6c7c3e8 AM |
5009 | } |
| 5010 | ||
| 459609d6 AM |
5011 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5012 | && (opd->flags & SEC_RELOC) != 0 | |
| 5013 | && opd->reloc_count != 0 | |
| 5014 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5015 | { |
| 459609d6 AM |
5016 | /* Garbage collection needs some extra help with .opd sections. |
| 5017 | We don't want to necessarily keep everything referenced by | |
| 5018 | relocs in .opd, as that would keep all functions. Instead, | |
| 5019 | if we reference an .opd symbol (a function descriptor), we | |
| 5020 | want to keep the function code symbol's section. This is | |
| 5021 | easy for global symbols, but for local syms we need to keep | |
| 5022 | information about the associated function section. */ | |
| 5023 | bfd_size_type amt; | |
| 5024 | asection **opd_sym_map; | |
| 5025 | ||
| 51aecdc5 | 5026 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5027 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5028 | if (opd_sym_map == NULL) | |
| b3fac117 | 5029 | return FALSE; |
| 459609d6 AM |
5030 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5031 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5032 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5033 | } |
| 5034 | } | |
| 5035 | ||
| 459609d6 AM |
5036 | if (!is_ppc64_elf (info->output_bfd)) |
| 5037 | return TRUE; | |
| 5038 | htab = ppc_hash_table (info); | |
| 5039 | if (htab == NULL) | |
| 5040 | return FALSE; | |
| 5041 | ||
| 5042 | /* For input files without an explicit abiversion in e_flags | |
| 5043 | we should have flagged any with symbol st_other bits set | |
| 5044 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5045 | Set the output abiversion if not yet set, and for any input | |
| 5046 | still ambiguous, take its abiversion from the output. | |
| 5047 | Differences in ABI are reported later. */ | |
| 5048 | if (abiversion (info->output_bfd) == 0) | |
| 5049 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5050 | else if (abiversion (ibfd) == 0) | |
| 5051 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5052 | ||
| 5053 | p = &htab->dot_syms; | |
| 5054 | while ((eh = *p) != NULL) | |
| 5055 | { | |
| 5056 | *p = NULL; | |
| 5057 | if (&eh->elf == htab->elf.hgot) | |
| 5058 | ; | |
| 5059 | else if (htab->elf.hgot == NULL | |
| 5060 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5061 | htab->elf.hgot = &eh->elf; | |
| 5062 | else if (!add_symbol_adjust (eh, info)) | |
| 5063 | return FALSE; | |
| 5064 | p = &eh->u.next_dot_sym; | |
| 5065 | } | |
| 5066 | ||
| b3fac117 AM |
5067 | /* Clear the list for non-ppc64 input files. */ |
| 5068 | p = &htab->dot_syms; | |
| 5069 | while ((eh = *p) != NULL) | |
| 5070 | { | |
| 5071 | *p = NULL; | |
| 5072 | p = &eh->u.next_dot_sym; | |
| 5073 | } | |
| 99877b66 AM |
5074 | |
| 5075 | /* We need to fix the undefs list for any syms we have twiddled to | |
| 5076 | undef_weak. */ | |
| 5077 | if (htab->twiddled_syms) | |
| 5078 | { | |
| 77cfaee6 | 5079 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
5080 | htab->twiddled_syms = 0; |
| 5081 | } | |
| b3fac117 | 5082 | return TRUE; |
| 8387904d AM |
5083 | } |
| 5084 | ||
| 97fed1c9 JJ |
5085 | /* Undo hash table changes when an --as-needed input file is determined |
| 5086 | not to be needed. */ | |
| 5087 | ||
| 5088 | static bfd_boolean | |
| e5034e59 AM |
5089 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5090 | struct bfd_link_info *info, | |
| 5091 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5092 | { |
| e5034e59 AM |
5093 | if (act == notice_not_needed) |
| 5094 | { | |
| 5095 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5096 | |
| e5034e59 AM |
5097 | if (htab == NULL) |
| 5098 | return FALSE; | |
| 4dfe6ac6 | 5099 | |
| e5034e59 AM |
5100 | htab->dot_syms = NULL; |
| 5101 | } | |
| 5102 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5103 | } |
| 5104 | ||
| aa374f67 AM |
5105 | /* If --just-symbols against a final linked binary, then assume we need |
| 5106 | toc adjusting stubs when calling functions defined there. */ | |
| 5107 | ||
| 5108 | static void | |
| 5109 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5110 | { | |
| 5111 | if ((sec->flags & SEC_CODE) != 0 | |
| 5112 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5113 | && is_ppc64_elf (sec->owner)) | |
| 5114 | { | |
| 2c3f079f AM |
5115 | if (abiversion (sec->owner) >= 2 |
| 5116 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5117 | sec->has_toc_reloc = 1; |
| 5118 | } | |
| 5119 | _bfd_elf_link_just_syms (sec, info); | |
| 5120 | } | |
| 5121 | ||
| e054468f | 5122 | static struct plt_entry ** |
| 4ce794b7 AM |
5123 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5124 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5125 | { |
| 5126 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5127 | struct plt_entry **local_plt; |
| f961d9dd | 5128 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5129 | |
| 5130 | if (local_got_ents == NULL) | |
| 5131 | { | |
| 5132 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5133 | ||
| e054468f AM |
5134 | size *= (sizeof (*local_got_ents) |
| 5135 | + sizeof (*local_plt) | |
| 5136 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5137 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5138 | if (local_got_ents == NULL) |
| e054468f | 5139 | return NULL; |
| 411e1bfb AM |
5140 | elf_local_got_ents (abfd) = local_got_ents; |
| 5141 | } | |
| 5142 | ||
| e054468f | 5143 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5144 | { |
| 5145 | struct got_entry *ent; | |
| 5146 | ||
| 5147 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5148 | if (ent->addend == r_addend |
| 5149 | && ent->owner == abfd | |
| 5150 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5151 | break; |
| 5152 | if (ent == NULL) | |
| 5153 | { | |
| 5154 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5155 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5156 | if (ent == NULL) |
| 5157 | return FALSE; | |
| 5158 | ent->next = local_got_ents[r_symndx]; | |
| 5159 | ent->addend = r_addend; | |
| e717da7e | 5160 | ent->owner = abfd; |
| 411e1bfb | 5161 | ent->tls_type = tls_type; |
| 927be08e | 5162 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5163 | ent->got.refcount = 0; |
| 5164 | local_got_ents[r_symndx] = ent; | |
| 5165 | } | |
| 5166 | ent->got.refcount += 1; | |
| 5167 | } | |
| 5168 | ||
| e054468f | 5169 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5170 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5171 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5172 | |
| 5173 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5174 | } |
| 5175 | ||
| 411e1bfb | 5176 | static bfd_boolean |
| e054468f | 5177 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5178 | { |
| 411e1bfb | 5179 | struct plt_entry *ent; |
| 1e2f5b6e | 5180 | |
| e054468f | 5181 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5182 | if (ent->addend == addend) |
| 5183 | break; | |
| 5184 | if (ent == NULL) | |
| 1e2f5b6e | 5185 | { |
| 411e1bfb | 5186 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5187 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5188 | if (ent == NULL) |
| 5189 | return FALSE; | |
| e054468f | 5190 | ent->next = *plist; |
| 411e1bfb AM |
5191 | ent->addend = addend; |
| 5192 | ent->plt.refcount = 0; | |
| e054468f | 5193 | *plist = ent; |
| 1e2f5b6e | 5194 | } |
| 411e1bfb | 5195 | ent->plt.refcount += 1; |
| b34976b6 | 5196 | return TRUE; |
| 1e2f5b6e AM |
5197 | } |
| 5198 | ||
| e054468f AM |
5199 | static bfd_boolean |
| 5200 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5201 | { | |
| 5202 | return (r_type == R_PPC64_REL24 | |
| 5203 | || r_type == R_PPC64_REL14 | |
| 5204 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5205 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5206 | || r_type == R_PPC64_ADDR24 | |
| 5207 | || r_type == R_PPC64_ADDR14 | |
| 5208 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5209 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5210 | } | |
| 5211 | ||
| 5bd4f169 | 5212 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5213 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5214 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5215 | |
| b34976b6 | 5216 | static bfd_boolean |
| 4ce794b7 AM |
5217 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5218 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5219 | { |
| 65f38f15 | 5220 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5221 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5222 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5223 | const Elf_Internal_Rela *rel; |
| 5224 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5225 | asection *sreloc; |
| 1e2f5b6e | 5226 | asection **opd_sym_map; |
| 3a71aa26 | 5227 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5228 | |
| 1049f94e | 5229 | if (info->relocatable) |
| b34976b6 | 5230 | return TRUE; |
| 5bd4f169 | 5231 | |
| 680a3378 AM |
5232 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5233 | In particular, any relocs in such sections should not affect GOT | |
| 5234 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5235 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5236 | relocs, and there's not much point in propagating relocs to shared | |
| 5237 | libs that the dynamic linker won't relocate. */ | |
| 5238 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5239 | return TRUE; | |
| 5240 | ||
| 0c8d6e5c | 5241 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5242 | |
| 65f38f15 | 5243 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5244 | if (htab == NULL) |
| 5245 | return FALSE; | |
| 5246 | ||
| 3a71aa26 AM |
5247 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5248 | FALSE, FALSE, TRUE); | |
| 5249 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5250 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5251 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5252 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5253 | sreloc = NULL; |
| 1e2f5b6e | 5254 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5255 | if (ppc64_elf_section_data (sec) != NULL |
| 5256 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5257 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5258 | |
| 5259 | rel_end = relocs + sec->reloc_count; | |
| 5260 | for (rel = relocs; rel < rel_end; rel++) | |
| 5261 | { | |
| 5262 | unsigned long r_symndx; | |
| 5263 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5264 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5265 | int tls_type; |
| 7c8fe5c4 | 5266 | struct _ppc64_elf_section_data *ppc64_sec; |
| e054468f | 5267 | struct plt_entry **ifunc; |
| 5bd4f169 AM |
5268 | |
| 5269 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5270 | if (r_symndx < symtab_hdr->sh_info) | |
| 5271 | h = NULL; | |
| 5272 | else | |
| 973a3492 L |
5273 | { |
| 5274 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5275 | h = elf_follow_link (h); |
| 81fbe831 AM |
5276 | |
| 5277 | /* PR15323, ref flags aren't set for references in the same | |
| 5278 | object. */ | |
| 5279 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5280 | |
| 5281 | if (h == htab->elf.hgot) | |
| 5282 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5283 | } |
| 5bd4f169 | 5284 | |
| 727fc41e | 5285 | tls_type = 0; |
| e054468f | 5286 | ifunc = NULL; |
| 25f23106 AM |
5287 | if (h != NULL) |
| 5288 | { | |
| 5289 | if (h->type == STT_GNU_IFUNC) | |
| 5290 | { | |
| 5291 | h->needs_plt = 1; | |
| 5292 | ifunc = &h->plt.plist; | |
| 5293 | } | |
| 5294 | } | |
| 5295 | else | |
| 5296 | { | |
| 5297 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5298 | abfd, r_symndx); | |
| 5299 | if (isym == NULL) | |
| 5300 | return FALSE; | |
| 5301 | ||
| 5302 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5303 | { | |
| 5304 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5305 | rel->r_addend, PLT_IFUNC); | |
| 5306 | if (ifunc == NULL) | |
| 5307 | return FALSE; | |
| 5308 | } | |
| 5309 | } | |
| 4ce794b7 | 5310 | r_type = ELF64_R_TYPE (rel->r_info); |
| e054468f AM |
5311 | if (is_branch_reloc (r_type)) |
| 5312 | { | |
| 5313 | if (h != NULL && (h == tga || h == dottga)) | |
| 5314 | { | |
| 5315 | if (rel != relocs | |
| 5316 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5317 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5318 | /* We have a new-style __tls_get_addr call with a marker | |
| 5319 | reloc. */ | |
| 5320 | ; | |
| 5321 | else | |
| 5322 | /* Mark this section as having an old-style call. */ | |
| 5323 | sec->has_tls_get_addr_call = 1; | |
| 5324 | } | |
| 727fc41e | 5325 | |
| e054468f | 5326 | /* STT_GNU_IFUNC symbols must have a PLT entry. */ |
| e054468f AM |
5327 | if (ifunc != NULL |
| 5328 | && !update_plt_info (abfd, ifunc, rel->r_addend)) | |
| 5329 | return FALSE; | |
| 5330 | } | |
| 727fc41e | 5331 | |
| a33d1f77 | 5332 | switch (r_type) |
| 5bd4f169 | 5333 | { |
| 727fc41e AM |
5334 | case R_PPC64_TLSGD: |
| 5335 | case R_PPC64_TLSLD: | |
| 5336 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5337 | its parameter symbol. */ | |
| 5338 | break; | |
| 5339 | ||
| 411e1bfb AM |
5340 | case R_PPC64_GOT_TLSLD16: |
| 5341 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5342 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5343 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5344 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5345 | goto dogottls; |
| 5346 | ||
| 5347 | case R_PPC64_GOT_TLSGD16: | |
| 5348 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5349 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5350 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5351 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5352 | goto dogottls; |
| 5353 | ||
| 5354 | case R_PPC64_GOT_TPREL16_DS: | |
| 5355 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5356 | case R_PPC64_GOT_TPREL16_HI: | |
| 5357 | case R_PPC64_GOT_TPREL16_HA: | |
| afb93314 | 5358 | if (info->shared) |
| 411e1bfb AM |
5359 | info->flags |= DF_STATIC_TLS; |
| 5360 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5361 | goto dogottls; | |
| 5362 | ||
| 5363 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5364 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5365 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5366 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5367 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5368 | dogottls: | |
| 5369 | sec->has_tls_reloc = 1; | |
| 5370 | /* Fall thru */ | |
| 5371 | ||
| 5bd4f169 | 5372 | case R_PPC64_GOT16: |
| 5bd4f169 | 5373 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5374 | case R_PPC64_GOT16_HA: |
| 5375 | case R_PPC64_GOT16_HI: | |
| 5376 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5377 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5378 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5379 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5380 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5381 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5382 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5383 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5384 | || r_type == R_PPC64_GOT16 | |
| 5385 | || r_type == R_PPC64_GOT16_DS) | |
| 5386 | { | |
| 5387 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5388 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5389 | } |
| 5390 | ||
| e717da7e AM |
5391 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5392 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5393 | return FALSE; |
| 5bd4f169 AM |
5394 | |
| 5395 | if (h != NULL) | |
| 5396 | { | |
| 411e1bfb AM |
5397 | struct ppc_link_hash_entry *eh; |
| 5398 | struct got_entry *ent; | |
| 65f38f15 | 5399 | |
| 411e1bfb AM |
5400 | eh = (struct ppc_link_hash_entry *) h; |
| 5401 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5402 | if (ent->addend == rel->r_addend | |
| e717da7e | 5403 | && ent->owner == abfd |
| 411e1bfb AM |
5404 | && ent->tls_type == tls_type) |
| 5405 | break; | |
| 5406 | if (ent == NULL) | |
| 5bd4f169 | 5407 | { |
| 411e1bfb | 5408 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5409 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5410 | if (ent == NULL) |
| b34976b6 | 5411 | return FALSE; |
| 411e1bfb AM |
5412 | ent->next = eh->elf.got.glist; |
| 5413 | ent->addend = rel->r_addend; | |
| e717da7e | 5414 | ent->owner = abfd; |
| 411e1bfb | 5415 | ent->tls_type = tls_type; |
| 927be08e | 5416 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5417 | ent->got.refcount = 0; |
| 5418 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5419 | } |
| 411e1bfb | 5420 | ent->got.refcount += 1; |
| e7b938ca | 5421 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5422 | } |
| 411e1bfb AM |
5423 | else |
| 5424 | /* This is a global offset table entry for a local symbol. */ | |
| 5425 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5426 | rel->r_addend, tls_type)) | |
| 5427 | return FALSE; | |
| a345bc8d AM |
5428 | |
| 5429 | /* We may also need a plt entry if the symbol turns out to be | |
| 5430 | an ifunc. */ | |
| f6c7c3e8 | 5431 | if (h != NULL && !info->shared && abiversion (abfd) != 1) |
| a345bc8d AM |
5432 | { |
| 5433 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5434 | return FALSE; | |
| 5435 | } | |
| 5bd4f169 AM |
5436 | break; |
| 5437 | ||
| 5bd4f169 | 5438 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5439 | case R_PPC64_PLT16_HI: |
| 5440 | case R_PPC64_PLT16_LO: | |
| 5441 | case R_PPC64_PLT32: | |
| 5442 | case R_PPC64_PLT64: | |
| 5bd4f169 | 5443 | /* This symbol requires a procedure linkage table entry. We |
| 3fad3c7c AM |
5444 | actually build the entry in adjust_dynamic_symbol, |
| 5445 | because this might be a case of linking PIC code without | |
| 5446 | linking in any dynamic objects, in which case we don't | |
| 5447 | need to generate a procedure linkage table after all. */ | |
| 5bd4f169 AM |
5448 | if (h == NULL) |
| 5449 | { | |
| 5450 | /* It does not make sense to have a procedure linkage | |
| 3fad3c7c | 5451 | table entry for a local symbol. */ |
| 5bd4f169 | 5452 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 5453 | return FALSE; |
| 5bd4f169 | 5454 | } |
| 411e1bfb | 5455 | else |
| e054468f AM |
5456 | { |
| 5457 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5458 | return FALSE; | |
| 5459 | h->needs_plt = 1; | |
| 5460 | if (h->root.root.string[0] == '.' | |
| 5461 | && h->root.root.string[1] != '\0') | |
| 5462 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5463 | } | |
| 5bd4f169 AM |
5464 | break; |
| 5465 | ||
| 5466 | /* The following relocations don't need to propagate the | |
| 5467 | relocation if linking a shared object since they are | |
| 5468 | section relative. */ | |
| 5469 | case R_PPC64_SECTOFF: | |
| 5470 | case R_PPC64_SECTOFF_LO: | |
| 5471 | case R_PPC64_SECTOFF_HI: | |
| 5472 | case R_PPC64_SECTOFF_HA: | |
| 5473 | case R_PPC64_SECTOFF_DS: | |
| 5474 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5475 | case R_PPC64_DTPREL16: |
| 5476 | case R_PPC64_DTPREL16_LO: | |
| 5477 | case R_PPC64_DTPREL16_HI: | |
| 5478 | case R_PPC64_DTPREL16_HA: | |
| 5479 | case R_PPC64_DTPREL16_DS: | |
| 5480 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5481 | case R_PPC64_DTPREL16_HIGH: |
| 5482 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5483 | case R_PPC64_DTPREL16_HIGHER: |
| 5484 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5485 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5486 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5487 | break; |
| 5488 | ||
| ad8e1ba5 | 5489 | /* Nor do these. */ |
| 25f23106 AM |
5490 | case R_PPC64_REL16: |
| 5491 | case R_PPC64_REL16_LO: | |
| 5492 | case R_PPC64_REL16_HI: | |
| 5493 | case R_PPC64_REL16_HA: | |
| 5494 | break; | |
| 5495 | ||
| 45965137 AM |
5496 | /* Not supported as a dynamic relocation. */ |
| 5497 | case R_PPC64_ADDR64_LOCAL: | |
| 5498 | if (info->shared) | |
| 5499 | { | |
| 5500 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5501 | ppc_howto_init (); | |
| 5502 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " | |
| 5503 | "in shared libraries and PIEs.\n"), | |
| 5504 | abfd, sec, rel->r_offset, | |
| 5505 | ppc64_elf_howto_table[r_type]->name); | |
| 5506 | bfd_set_error (bfd_error_bad_value); | |
| 5507 | return FALSE; | |
| 5508 | } | |
| 5509 | break; | |
| 5510 | ||
| ad8e1ba5 | 5511 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5512 | case R_PPC64_TOC16_DS: |
| 5513 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5514 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| ad8e1ba5 AM |
5515 | case R_PPC64_TOC16_LO: |
| 5516 | case R_PPC64_TOC16_HI: | |
| 5517 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5518 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5519 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5520 | break; |
| 5521 | ||
| 5bd4f169 AM |
5522 | /* This relocation describes the C++ object vtable hierarchy. |
| 5523 | Reconstruct it for later use during GC. */ | |
| 5524 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5525 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5526 | return FALSE; |
| 5bd4f169 AM |
5527 | break; |
| 5528 | ||
| 5529 | /* This relocation describes which C++ vtable entries are actually | |
| 5530 | used. Record for later use during GC. */ | |
| 5531 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5532 | BFD_ASSERT (h != NULL); |
| 5533 | if (h != NULL | |
| 5534 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5535 | return FALSE; |
| 5bd4f169 AM |
5536 | break; |
| 5537 | ||
| 721956f4 AM |
5538 | case R_PPC64_REL14: |
| 5539 | case R_PPC64_REL14_BRTAKEN: | |
| 5540 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5541 | { |
| 5542 | asection *dest = NULL; | |
| 5543 | ||
| 5544 | /* Heuristic: If jumping outside our section, chances are | |
| 5545 | we are going to need a stub. */ | |
| 5546 | if (h != NULL) | |
| 5547 | { | |
| 5548 | /* If the sym is weak it may be overridden later, so | |
| 5549 | don't assume we know where a weak sym lives. */ | |
| 5550 | if (h->root.type == bfd_link_hash_defined) | |
| 5551 | dest = h->root.u.def.section; | |
| 5552 | } | |
| 5553 | else | |
| 87d72d41 AM |
5554 | { |
| 5555 | Elf_Internal_Sym *isym; | |
| 5556 | ||
| 5557 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5558 | abfd, r_symndx); | |
| 5559 | if (isym == NULL) | |
| 5560 | return FALSE; | |
| 5561 | ||
| 5562 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5563 | } | |
| 5564 | ||
| 220c76dd | 5565 | if (dest != sec) |
| 7c8fe5c4 | 5566 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5567 | } |
| 721956f4 AM |
5568 | /* Fall through. */ |
| 5569 | ||
| 5d1634d7 | 5570 | case R_PPC64_REL24: |
| e054468f | 5571 | if (h != NULL && ifunc == NULL) |
| 5d1634d7 AM |
5572 | { |
| 5573 | /* We may need a .plt entry if the function this reloc | |
| 5574 | refers to is in a shared lib. */ | |
| e054468f | 5575 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) |
| 411e1bfb | 5576 | return FALSE; |
| e054468f AM |
5577 | h->needs_plt = 1; |
| 5578 | if (h->root.root.string[0] == '.' | |
| 5579 | && h->root.root.string[1] != '\0') | |
| 5580 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 3a71aa26 | 5581 | if (h == tga || h == dottga) |
| 411e1bfb | 5582 | sec->has_tls_reloc = 1; |
| 411e1bfb AM |
5583 | } |
| 5584 | break; | |
| 5585 | ||
| 5586 | case R_PPC64_TPREL64: | |
| 5587 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| afb93314 | 5588 | if (info->shared) |
| 411e1bfb AM |
5589 | info->flags |= DF_STATIC_TLS; |
| 5590 | goto dotlstoc; | |
| 5591 | ||
| 5592 | case R_PPC64_DTPMOD64: | |
| 5593 | if (rel + 1 < rel_end | |
| 5594 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5595 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5596 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5597 | else |
| 951fd09b | 5598 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5599 | goto dotlstoc; |
| 5600 | ||
| 5601 | case R_PPC64_DTPREL64: | |
| 5602 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5603 | if (rel != relocs | |
| 5604 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5605 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5606 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5607 | Don't mark with TLS_DTPREL. */ | |
| 5608 | goto dodyn; | |
| 5609 | ||
| 5610 | dotlstoc: | |
| 5611 | sec->has_tls_reloc = 1; | |
| 5612 | if (h != NULL) | |
| 5613 | { | |
| 5614 | struct ppc_link_hash_entry *eh; | |
| 5615 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5616 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5617 | } |
| 5618 | else | |
| 5619 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5620 | rel->r_addend, tls_type)) | |
| 5621 | return FALSE; | |
| 5622 | ||
| 7c8fe5c4 AM |
5623 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5624 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5625 | { |
| 3a71aa26 AM |
5626 | bfd_size_type amt; |
| 5627 | ||
| e7b938ca | 5628 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5629 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5630 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5631 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5632 | return FALSE; | |
| 5633 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5634 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5635 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5636 | return FALSE; |
| 7c8fe5c4 AM |
5637 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5638 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5639 | } |
| 5640 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5641 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5642 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5643 | |
| 5644 | /* Mark the second slot of a GD or LD entry. | |
| 5645 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5646 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5647 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5648 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5649 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5650 | goto dodyn; |
| 5651 | ||
| 5652 | case R_PPC64_TPREL16: | |
| 5653 | case R_PPC64_TPREL16_LO: | |
| 5654 | case R_PPC64_TPREL16_HI: | |
| 5655 | case R_PPC64_TPREL16_HA: | |
| 5656 | case R_PPC64_TPREL16_DS: | |
| 5657 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5658 | case R_PPC64_TPREL16_HIGH: |
| 5659 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5660 | case R_PPC64_TPREL16_HIGHER: |
| 5661 | case R_PPC64_TPREL16_HIGHERA: | |
| 5662 | case R_PPC64_TPREL16_HIGHEST: | |
| 5663 | case R_PPC64_TPREL16_HIGHESTA: | |
| 5664 | if (info->shared) | |
| 5665 | { | |
| afb93314 | 5666 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5667 | goto dodyn; |
| 5d1634d7 AM |
5668 | } |
| 5669 | break; | |
| 5670 | ||
| e86ce104 | 5671 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5672 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5673 | && rel + 1 < rel_end |
| 4ce794b7 | 5674 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5675 | { |
| 8387904d AM |
5676 | if (h != NULL) |
| 5677 | { | |
| 5678 | if (h->root.root.string[0] == '.' | |
| 5679 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5680 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5681 | ; |
| 5682 | else | |
| 5683 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5684 | } | |
| 5685 | else | |
| 5686 | { | |
| 5687 | asection *s; | |
| 87d72d41 | 5688 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5689 | |
| 87d72d41 AM |
5690 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5691 | abfd, r_symndx); | |
| 5692 | if (isym == NULL) | |
| 8387904d | 5693 | return FALSE; |
| 87d72d41 AM |
5694 | |
| 5695 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5696 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5697 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5698 | } |
| 1e2f5b6e | 5699 | } |
| e86ce104 AM |
5700 | /* Fall through. */ |
| 5701 | ||
| 65f38f15 AM |
5702 | case R_PPC64_ADDR16: |
| 5703 | case R_PPC64_ADDR16_DS: | |
| 5704 | case R_PPC64_ADDR16_HA: | |
| 5705 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5706 | case R_PPC64_ADDR16_HIGH: |
| 5707 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5708 | case R_PPC64_ADDR16_HIGHER: |
| 5709 | case R_PPC64_ADDR16_HIGHERA: | |
| 5710 | case R_PPC64_ADDR16_HIGHEST: | |
| 5711 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5712 | case R_PPC64_ADDR16_LO: | |
| 5713 | case R_PPC64_ADDR16_LO_DS: | |
| f6c7c3e8 | 5714 | if (h != NULL && !info->shared && abiversion (abfd) != 1 |
| a345bc8d AM |
5715 | && rel->r_addend == 0) |
| 5716 | { | |
| 5717 | /* We may need a .plt entry if this reloc refers to a | |
| 5718 | function in a shared lib. */ | |
| 5719 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5720 | return FALSE; | |
| 5721 | h->pointer_equality_needed = 1; | |
| 5722 | } | |
| 5723 | /* Fall through. */ | |
| 5724 | ||
| 5725 | case R_PPC64_REL30: | |
| 5726 | case R_PPC64_REL32: | |
| 5727 | case R_PPC64_REL64: | |
| 5728 | case R_PPC64_ADDR14: | |
| 5729 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5730 | case R_PPC64_ADDR14_BRTAKEN: | |
| 65f38f15 | 5731 | case R_PPC64_ADDR24: |
| 65f38f15 | 5732 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5733 | case R_PPC64_UADDR16: |
| 5734 | case R_PPC64_UADDR32: | |
| 5735 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5736 | case R_PPC64_TOC: |
| 81848ca0 AM |
5737 | if (h != NULL && !info->shared) |
| 5738 | /* We may need a copy reloc. */ | |
| f5385ebf | 5739 | h->non_got_ref = 1; |
| 81848ca0 | 5740 | |
| 41bd81ab | 5741 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5742 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5743 | break; |
| e86ce104 | 5744 | |
| 65f38f15 AM |
5745 | /* If we are creating a shared library, and this is a reloc |
| 5746 | against a global symbol, or a non PC relative reloc | |
| 5747 | against a local symbol, then we need to copy the reloc | |
| 5748 | into the shared library. However, if we are linking with | |
| 5749 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5750 | global symbol which is defined in an object we are | |
| 5751 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5752 | this point we have not seen all the input files, so it is | |
| 5753 | possible that DEF_REGULAR is not set now but will be set | |
| 5754 | later (it is never cleared). In case of a weak definition, | |
| 5755 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5756 | a shared library. We account for that possibility below by | |
| f4656909 | 5757 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5758 | table entry. A similar situation occurs when creating |
| 5759 | shared libraries and symbol visibility changes render the | |
| 5760 | symbol local. | |
| 5761 | ||
| 5762 | If on the other hand, we are creating an executable, we | |
| 5763 | may need to keep relocations for symbols satisfied by a | |
| 5764 | dynamic library if we manage to avoid copy relocs for the | |
| 5765 | symbol. */ | |
| 411e1bfb | 5766 | dodyn: |
| 65f38f15 | 5767 | if ((info->shared |
| 1d483afe | 5768 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5769 | || (h != NULL |
| 198f1157 | 5770 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5771 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5772 | || !h->def_regular)))) |
| f4656909 AM |
5773 | || (ELIMINATE_COPY_RELOCS |
| 5774 | && !info->shared | |
| 65f38f15 AM |
5775 | && h != NULL |
| 5776 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 AM |
5777 | || !h->def_regular)) |
| 5778 | || (!info->shared | |
| 5779 | && ifunc != NULL)) | |
| 5bd4f169 | 5780 | { |
| 65f38f15 AM |
5781 | /* We must copy these reloc types into the output file. |
| 5782 | Create a reloc section in dynobj and make room for | |
| 5783 | this reloc. */ | |
| 5bd4f169 AM |
5784 | if (sreloc == NULL) |
| 5785 | { | |
| 83bac4b0 NC |
5786 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5787 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5788 | |
| 5bd4f169 | 5789 | if (sreloc == NULL) |
| 83bac4b0 | 5790 | return FALSE; |
| 5bd4f169 AM |
5791 | } |
| 5792 | ||
| 65f38f15 AM |
5793 | /* If this is a global symbol, we count the number of |
| 5794 | relocations we need for this symbol. */ | |
| 5795 | if (h != NULL) | |
| 5796 | { | |
| 19e08130 AM |
5797 | struct elf_dyn_relocs *p; |
| 5798 | struct elf_dyn_relocs **head; | |
| 5799 | ||
| ec338859 | 5800 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5801 | p = *head; |
| 5802 | if (p == NULL || p->sec != sec) | |
| 5803 | { | |
| 5804 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5805 | if (p == NULL) | |
| 5806 | return FALSE; | |
| 5807 | p->next = *head; | |
| 5808 | *head = p; | |
| 5809 | p->sec = sec; | |
| 5810 | p->count = 0; | |
| 5811 | p->pc_count = 0; | |
| 5812 | } | |
| 5813 | p->count += 1; | |
| 5814 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5815 | p->pc_count += 1; | |
| 65f38f15 AM |
5816 | } |
| 5817 | else | |
| 5818 | { | |
| ec338859 AM |
5819 | /* Track dynamic relocs needed for local syms too. |
| 5820 | We really need local syms available to do this | |
| 5821 | easily. Oh well. */ | |
| 19e08130 AM |
5822 | struct ppc_dyn_relocs *p; |
| 5823 | struct ppc_dyn_relocs **head; | |
| 5824 | bfd_boolean is_ifunc; | |
| ec338859 | 5825 | asection *s; |
| 6edfbbad | 5826 | void *vpp; |
| 87d72d41 | 5827 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5828 | |
| 87d72d41 AM |
5829 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5830 | abfd, r_symndx); | |
| 5831 | if (isym == NULL) | |
| b34976b6 | 5832 | return FALSE; |
| ec338859 | 5833 | |
| 87d72d41 AM |
5834 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5835 | if (s == NULL) | |
| 5836 | s = sec; | |
| 5837 | ||
| 6edfbbad | 5838 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5839 | head = (struct ppc_dyn_relocs **) vpp; |
| 5840 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5841 | p = *head; | |
| 5842 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5843 | p = p->next; | |
| 5844 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5845 | { | |
| 5846 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5847 | if (p == NULL) | |
| 5848 | return FALSE; | |
| 5849 | p->next = *head; | |
| 5850 | *head = p; | |
| 5851 | p->sec = sec; | |
| 5852 | p->ifunc = is_ifunc; | |
| 5853 | p->count = 0; | |
| 5854 | } | |
| 5855 | p->count += 1; | |
| ec338859 | 5856 | } |
| 65f38f15 | 5857 | } |
| 5bd4f169 | 5858 | break; |
| 65f38f15 AM |
5859 | |
| 5860 | default: | |
| 96e0dda4 | 5861 | break; |
| 5bd4f169 AM |
5862 | } |
| 5863 | } | |
| 5864 | ||
| b34976b6 | 5865 | return TRUE; |
| 5bd4f169 AM |
5866 | } |
| 5867 | ||
| ee67d69a AM |
5868 | /* Merge backend specific data from an object file to the output |
| 5869 | object file when linking. */ | |
| 5870 | ||
| 5871 | static bfd_boolean | |
| 5872 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
| 5873 | { | |
| 5874 | unsigned long iflags, oflags; | |
| 5875 | ||
| 5876 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5877 | return TRUE; | |
| 5878 | ||
| 5879 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 5880 | return TRUE; | |
| 5881 | ||
| 5882 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
| 5883 | return FALSE; | |
| 5884 | ||
| 5885 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 5886 | oflags = elf_elfheader (obfd)->e_flags; | |
| 5887 | ||
| f6c7c3e8 | 5888 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a AM |
5889 | { |
| 5890 | (*_bfd_error_handler) | |
| 5891 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); | |
| 5892 | bfd_set_error (bfd_error_bad_value); | |
| 5893 | return FALSE; | |
| 5894 | } | |
| f6c7c3e8 | 5895 | else if (iflags != oflags && iflags != 0) |
| ee67d69a AM |
5896 | { |
| 5897 | (*_bfd_error_handler) | |
| 5898 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), | |
| 5899 | ibfd, iflags, oflags); | |
| 5900 | bfd_set_error (bfd_error_bad_value); | |
| 5901 | return FALSE; | |
| 5902 | } | |
| 5903 | ||
| 5904 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
| 5905 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
| 5906 | ||
| 5907 | return TRUE; | |
| 5908 | } | |
| 5909 | ||
| 5910 | static bfd_boolean | |
| 5911 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 5912 | { | |
| 5913 | /* Print normal ELF private data. */ | |
| 5914 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 5915 | ||
| 5916 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 5917 | { | |
| 5918 | FILE *file = ptr; | |
| 5919 | ||
| 5920 | /* xgettext:c-format */ | |
| 5921 | fprintf (file, _("private flags = 0x%lx:"), | |
| 5922 | elf_elfheader (abfd)->e_flags); | |
| 5923 | ||
| 5924 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 5925 | fprintf (file, _(" [abiv%ld]"), | |
| 5926 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 5927 | fputc ('\n', file); | |
| 5928 | } | |
| 5929 | ||
| 5930 | return TRUE; | |
| 5931 | } | |
| 5932 | ||
| 8387904d | 5933 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
5934 | of the code entry point, and its section, which must be in the same |
| 5935 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
5936 | |
| 5937 | static bfd_vma | |
| 5938 | opd_entry_value (asection *opd_sec, | |
| 5939 | bfd_vma offset, | |
| 5940 | asection **code_sec, | |
| aef36ac1 AM |
5941 | bfd_vma *code_off, |
| 5942 | bfd_boolean in_code_sec) | |
| 8387904d AM |
5943 | { |
| 5944 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 5945 | Elf_Internal_Rela *relocs; |
| 8387904d | 5946 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 5947 | bfd_vma val; |
| 8387904d | 5948 | |
| 9f296da3 AM |
5949 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 5950 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
5951 | if (opd_sec->reloc_count == 0) |
| 5952 | { | |
| 729eabd5 | 5953 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 5954 | |
| 729eabd5 AM |
5955 | if (contents == NULL) |
| 5956 | { | |
| 5957 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 5958 | return (bfd_vma) -1; | |
| 5959 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 5960 | } | |
| ee1e4ede | 5961 | |
| dbb3fbbb | 5962 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 5963 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
5964 | return (bfd_vma) -1; |
| 5965 | ||
| 729eabd5 | 5966 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
5967 | if (code_sec != NULL) |
| 5968 | { | |
| 5969 | asection *sec, *likely = NULL; | |
| ee1e4ede | 5970 | |
| aef36ac1 | 5971 | if (in_code_sec) |
| 4b85d634 | 5972 | { |
| aef36ac1 AM |
5973 | sec = *code_sec; |
| 5974 | if (sec->vma <= val | |
| 5975 | && val < sec->vma + sec->size) | |
| 5976 | likely = sec; | |
| 5977 | else | |
| 5978 | val = -1; | |
| 5979 | } | |
| 5980 | else | |
| 5981 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 5982 | if (sec->vma <= val | |
| 5983 | && (sec->flags & SEC_LOAD) != 0 | |
| 5984 | && (sec->flags & SEC_ALLOC) != 0) | |
| 5985 | likely = sec; | |
| 5986 | if (likely != NULL) | |
| 5987 | { | |
| 5988 | *code_sec = likely; | |
| 5989 | if (code_off != NULL) | |
| 5990 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
5991 | } |
| 5992 | } | |
| aef36ac1 | 5993 | return val; |
| 4b85d634 AM |
5994 | } |
| 5995 | ||
| 0c8d6e5c | 5996 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 5997 | |
| 729eabd5 | 5998 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
5999 | if (relocs == NULL) |
| 6000 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6001 | /* PR 17512: file: df8e1fd6. */ |
| 6002 | if (relocs == NULL) | |
| 6003 | return (bfd_vma) -1; | |
| 645ea6a9 | 6004 | |
| 8387904d | 6005 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6006 | lo = relocs; |
| 8387904d | 6007 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6008 | val = (bfd_vma) -1; |
| 8387904d AM |
6009 | while (lo < hi) |
| 6010 | { | |
| 6011 | look = lo + (hi - lo) / 2; | |
| 6012 | if (look->r_offset < offset) | |
| 6013 | lo = look + 1; | |
| 6014 | else if (look->r_offset > offset) | |
| 6015 | hi = look; | |
| 6016 | else | |
| 6017 | { | |
| 0ffa91dd NC |
6018 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6019 | ||
| 8387904d AM |
6020 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6021 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6022 | { | |
| 6023 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6024 | asection *sec = NULL; |
| 8387904d | 6025 | |
| b53dfeb2 AM |
6026 | if (symndx >= symtab_hdr->sh_info |
| 6027 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6028 | { |
| 6029 | struct elf_link_hash_entry **sym_hashes; | |
| 6030 | struct elf_link_hash_entry *rh; | |
| 6031 | ||
| 6032 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6033 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6034 | if (rh != NULL) |
| 6035 | { | |
| 6036 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6037 | if (rh->root.type != bfd_link_hash_defined |
| 6038 | && rh->root.type != bfd_link_hash_defweak) | |
| 6039 | break; | |
| 6040 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6041 | { |
| bb854a36 AM |
6042 | val = rh->root.u.def.value; |
| 6043 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6044 | } |
| 6045 | } | |
| 6046 | } | |
| 6047 | ||
| 6048 | if (sec == NULL) | |
| 6049 | { | |
| 6050 | Elf_Internal_Sym *sym; | |
| 6051 | ||
| 6052 | if (symndx < symtab_hdr->sh_info) | |
| 6053 | { | |
| 6054 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6055 | if (sym == NULL) | |
| 6056 | { | |
| 6057 | size_t symcnt = symtab_hdr->sh_info; | |
| 6058 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6059 | symcnt, 0, | |
| 6060 | NULL, NULL, NULL); | |
| 6061 | if (sym == NULL) | |
| 6062 | break; | |
| 6063 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6064 | } | |
| 6065 | sym += symndx; | |
| 128205bb AM |
6066 | } |
| 6067 | else | |
| 6068 | { | |
| b53dfeb2 AM |
6069 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6070 | 1, symndx, | |
| 6071 | NULL, NULL, NULL); | |
| 128205bb AM |
6072 | if (sym == NULL) |
| 6073 | break; | |
| 128205bb | 6074 | } |
| b53dfeb2 AM |
6075 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6076 | if (sec == NULL) | |
| 6077 | break; | |
| 6078 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6079 | val = sym->st_value; | |
| 8387904d | 6080 | } |
| b53dfeb2 | 6081 | |
| 8387904d AM |
6082 | val += look->r_addend; |
| 6083 | if (code_off != NULL) | |
| 6084 | *code_off = val; | |
| 6085 | if (code_sec != NULL) | |
| aef36ac1 AM |
6086 | { |
| 6087 | if (in_code_sec && *code_sec != sec) | |
| 6088 | return -1; | |
| 6089 | else | |
| 6090 | *code_sec = sec; | |
| 6091 | } | |
| b53dfeb2 | 6092 | if (sec->output_section != NULL) |
| 8387904d | 6093 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6094 | } |
| 6095 | break; | |
| 6096 | } | |
| 6097 | } | |
| 645ea6a9 | 6098 | |
| 645ea6a9 | 6099 | return val; |
| 8387904d AM |
6100 | } |
| 6101 | ||
| aef36ac1 AM |
6102 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6103 | function size and set *CODE_OFF to the function's entry point, | |
| 6104 | otherwise return zero. */ | |
| 9f296da3 | 6105 | |
| aef36ac1 AM |
6106 | static bfd_size_type |
| 6107 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6108 | bfd_vma *code_off) | |
| 9f296da3 | 6109 | { |
| aef36ac1 AM |
6110 | bfd_size_type size; |
| 6111 | ||
| 6112 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6113 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6114 | return 0; | |
| 6115 | ||
| 6116 | size = 0; | |
| 6117 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6118 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6119 | ||
| 6120 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6121 | { |
| aef36ac1 AM |
6122 | if (opd_entry_value (sym->section, sym->value, |
| 6123 | &sec, code_off, TRUE) == (bfd_vma) -1) | |
| 6124 | return 0; | |
| 6125 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6126 | symbol. This size has nothing to do with the code size of the | |
| 6127 | function, which is what we're supposed to return, but the | |
| 6128 | code size isn't available without looking up the dot-sym. | |
| 6129 | However, doing that would be a waste of time particularly | |
| 6130 | since elf_find_function will look at the dot-sym anyway. | |
| 6131 | Now, elf_find_function will keep the largest size of any | |
| 6132 | function sym found at the code address of interest, so return | |
| 6133 | 1 here to avoid it incorrectly caching a larger function size | |
| 6134 | for a small function. This does mean we return the wrong | |
| 6135 | size for a new-ABI function of size 24, but all that does is | |
| 6136 | disable caching for such functions. */ | |
| 6137 | if (size == 24) | |
| 6138 | size = 1; | |
| 9f296da3 | 6139 | } |
| aef36ac1 AM |
6140 | else |
| 6141 | { | |
| 6142 | if (sym->section != sec) | |
| 6143 | return 0; | |
| 6144 | *code_off = sym->value; | |
| 6145 | } | |
| 6146 | if (size == 0) | |
| 6147 | size = 1; | |
| 6148 | return size; | |
| 9f296da3 AM |
6149 | } |
| 6150 | ||
| 854b41e7 AM |
6151 | /* Return true if symbol is defined in a regular object file. */ |
| 6152 | ||
| 6153 | static bfd_boolean | |
| 6154 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6155 | { | |
| 6156 | return ((h->root.type == bfd_link_hash_defined | |
| 6157 | || h->root.type == bfd_link_hash_defweak) | |
| 6158 | && h->root.u.def.section != NULL | |
| 6159 | && h->root.u.def.section->output_section != NULL); | |
| 6160 | } | |
| 6161 | ||
| b31867b6 AM |
6162 | /* If FDH is a function descriptor symbol, return the associated code |
| 6163 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6164 | ||
| 6165 | static struct ppc_link_hash_entry * | |
| 6166 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6167 | { | |
| 6168 | if (fdh->is_func_descriptor) | |
| 6169 | { | |
| 6170 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6171 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6172 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6173 | return fh; | |
| 6174 | } | |
| 6175 | return NULL; | |
| 6176 | } | |
| 6177 | ||
| 6178 | /* If FH is a function code entry symbol, return the associated | |
| 6179 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6180 | ||
| 6181 | static struct ppc_link_hash_entry * | |
| 6182 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6183 | { | |
| 6184 | if (fh->oh != NULL | |
| 6185 | && fh->oh->is_func_descriptor) | |
| 6186 | { | |
| 6187 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6188 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6189 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6190 | return fdh; | |
| 6191 | } | |
| 6192 | return NULL; | |
| 6193 | } | |
| 6194 | ||
| 74f0fb50 AM |
6195 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6196 | ||
| 6197 | static void | |
| 6198 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6199 | { | |
| 6200 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6201 | struct bfd_sym_chain *sym; | |
| 6202 | ||
| 4dfe6ac6 NC |
6203 | if (htab == NULL) |
| 6204 | return; | |
| 6205 | ||
| 74f0fb50 AM |
6206 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6207 | { | |
| b31867b6 | 6208 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6209 | asection *sec; |
| 6210 | ||
| 6211 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6212 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6213 | if (eh == NULL) |
| 6214 | continue; | |
| 6215 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6216 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6217 | continue; | |
| 6218 | ||
| b31867b6 AM |
6219 | fh = defined_code_entry (eh); |
| 6220 | if (fh != NULL) | |
| 74f0fb50 | 6221 | { |
| b31867b6 | 6222 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6223 | sec->flags |= SEC_KEEP; |
| 6224 | } | |
| 6225 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6226 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6227 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6228 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6229 | sec->flags |= SEC_KEEP; |
| 6230 | ||
| 6231 | sec = eh->elf.root.u.def.section; | |
| 6232 | sec->flags |= SEC_KEEP; | |
| 6233 | } | |
| 6234 | } | |
| 6235 | ||
| 64d03ab5 AM |
6236 | /* Mark sections containing dynamically referenced symbols. When |
| 6237 | building shared libraries, we must assume that any visible symbol is | |
| 6238 | referenced. */ | |
| 6239 | ||
| 6240 | static bfd_boolean | |
| 6241 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6242 | { | |
| 6243 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6244 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6245 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6246 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6247 | |
| 64d03ab5 | 6248 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6249 | fdh = defined_func_desc (eh); |
| 6250 | if (fdh != NULL) | |
| 6251 | eh = fdh; | |
| 64d03ab5 AM |
6252 | |
| 6253 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6254 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6255 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6256 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6257 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6258 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| b407645f AM |
6259 | && (!info->executable |
| 6260 | || info->export_dynamic | |
| 6261 | || (eh->elf.dynamic | |
| 6262 | && d != NULL | |
| 6263 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6264 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6265 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6266 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6267 | { |
| 6268 | asection *code_sec; | |
| b31867b6 | 6269 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6270 | |
| 6271 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6272 | ||
| 6273 | /* Function descriptor syms cause the associated | |
| 6274 | function code sym section to be marked. */ | |
| b31867b6 AM |
6275 | fh = defined_code_entry (eh); |
| 6276 | if (fh != NULL) | |
| 6277 | { | |
| 6278 | code_sec = fh->elf.root.u.def.section; | |
| 6279 | code_sec->flags |= SEC_KEEP; | |
| 6280 | } | |
| 64d03ab5 AM |
6281 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6282 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6283 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6284 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6285 | code_sec->flags |= SEC_KEEP; |
| 6286 | } | |
| 6287 | ||
| 6288 | return TRUE; | |
| 6289 | } | |
| 6290 | ||
| 5bd4f169 AM |
6291 | /* Return the section that should be marked against GC for a given |
| 6292 | relocation. */ | |
| 6293 | ||
| 6294 | static asection * | |
| 4ce794b7 | 6295 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6296 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6297 | Elf_Internal_Rela *rel, |
| 6298 | struct elf_link_hash_entry *h, | |
| 6299 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6300 | { |
| ccfa59ea AM |
6301 | asection *rsec; |
| 6302 | ||
| ccfa59ea AM |
6303 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6304 | function sections, as all functions are referenced in .opd. */ | |
| 6305 | rsec = NULL; | |
| 6306 | if (get_opd_info (sec) != NULL) | |
| 6307 | return rsec; | |
| 1e2f5b6e | 6308 | |
| 5bd4f169 AM |
6309 | if (h != NULL) |
| 6310 | { | |
| 04c9666a | 6311 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6312 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6313 | |
| 4ce794b7 | 6314 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6315 | switch (r_type) |
| 5bd4f169 AM |
6316 | { |
| 6317 | case R_PPC64_GNU_VTINHERIT: | |
| 6318 | case R_PPC64_GNU_VTENTRY: | |
| 6319 | break; | |
| 6320 | ||
| 6321 | default: | |
| 6322 | switch (h->root.type) | |
| 6323 | { | |
| 6324 | case bfd_link_hash_defined: | |
| 6325 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6326 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6327 | fdh = defined_func_desc (eh); |
| 6328 | if (fdh != NULL) | |
| 6329 | eh = fdh; | |
| 1e2f5b6e AM |
6330 | |
| 6331 | /* Function descriptor syms cause the associated | |
| 6332 | function code sym section to be marked. */ | |
| b31867b6 AM |
6333 | fh = defined_code_entry (eh); |
| 6334 | if (fh != NULL) | |
| ccfa59ea AM |
6335 | { |
| 6336 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6337 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6338 | |
| b31867b6 | 6339 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6340 | } |
| 8387904d AM |
6341 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6342 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6343 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6344 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6345 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6346 | else |
| 1e2f5b6e AM |
6347 | rsec = h->root.u.def.section; |
| 6348 | break; | |
| 5bd4f169 AM |
6349 | |
| 6350 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6351 | rsec = h->root.u.c.p->section; |
| 6352 | break; | |
| 5bd4f169 AM |
6353 | |
| 6354 | default: | |
| fb34365b | 6355 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6356 | } |
| 6357 | } | |
| 6358 | } | |
| 6359 | else | |
| 6360 | { | |
| 74f0fb50 | 6361 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6362 | |
| 6363 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6364 | opd = get_opd_info (rsec); |
| 6365 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6366 | { |
| 74f0fb50 | 6367 | rsec->gc_mark = 1; |
| ccfa59ea | 6368 | |
| 51aecdc5 | 6369 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6370 | } |
| 5bd4f169 AM |
6371 | } |
| 6372 | ||
| 1e2f5b6e | 6373 | return rsec; |
| 5bd4f169 AM |
6374 | } |
| 6375 | ||
| 65f38f15 AM |
6376 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6377 | section being removed. */ | |
| 5bd4f169 | 6378 | |
| b34976b6 | 6379 | static bfd_boolean |
| 4ce794b7 AM |
6380 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6381 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6382 | { |
| 411e1bfb | 6383 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6384 | Elf_Internal_Shdr *symtab_hdr; |
| 6385 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6386 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6387 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6388 | |
| 7dda2462 TG |
6389 | if (info->relocatable) |
| 6390 | return TRUE; | |
| 6391 | ||
| 680a3378 AM |
6392 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6393 | return TRUE; | |
| 6394 | ||
| ec338859 AM |
6395 | elf_section_data (sec)->local_dynrel = NULL; |
| 6396 | ||
| 411e1bfb | 6397 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6398 | if (htab == NULL) |
| 6399 | return FALSE; | |
| 6400 | ||
| 0ffa91dd | 6401 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6402 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6403 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6404 | |
| 6405 | relend = relocs + sec->reloc_count; | |
| 6406 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6407 | { |
| 6408 | unsigned long r_symndx; | |
| 04c9666a | 6409 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6410 | struct elf_link_hash_entry *h = NULL; |
| f961d9dd | 6411 | unsigned char tls_type = 0; |
| 5bd4f169 | 6412 | |
| a33d1f77 | 6413 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6414 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6415 | if (r_symndx >= symtab_hdr->sh_info) |
| 6416 | { | |
| 6417 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6418 | struct elf_dyn_relocs **pp; |
| 6419 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6420 | |
| 6421 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6422 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6423 | eh = (struct ppc_link_hash_entry *) h; |
| 6424 | ||
| 6425 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6426 | if (p->sec == sec) | |
| 6427 | { | |
| 6428 | /* Everything must go for SEC. */ | |
| 6429 | *pp = p->next; | |
| 6430 | break; | |
| 6431 | } | |
| 6432 | } | |
| 6433 | ||
| e054468f AM |
6434 | if (is_branch_reloc (r_type)) |
| 6435 | { | |
| 6436 | struct plt_entry **ifunc = NULL; | |
| 6437 | if (h != NULL) | |
| 6438 | { | |
| 6439 | if (h->type == STT_GNU_IFUNC) | |
| 6440 | ifunc = &h->plt.plist; | |
| 6441 | } | |
| 6442 | else if (local_got_ents != NULL) | |
| 6443 | { | |
| 6444 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6445 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 6446 | unsigned char *local_got_tls_masks = (unsigned char *) |
| e054468f AM |
6447 | (local_plt + symtab_hdr->sh_info); |
| 6448 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6449 | ifunc = local_plt + r_symndx; | |
| 6450 | } | |
| 6451 | if (ifunc != NULL) | |
| 6452 | { | |
| 6453 | struct plt_entry *ent; | |
| 6454 | ||
| 6455 | for (ent = *ifunc; ent != NULL; ent = ent->next) | |
| 6456 | if (ent->addend == rel->r_addend) | |
| 6457 | break; | |
| 6458 | if (ent == NULL) | |
| 6459 | abort (); | |
| 6460 | if (ent->plt.refcount > 0) | |
| 6461 | ent->plt.refcount -= 1; | |
| 6462 | continue; | |
| 6463 | } | |
| 6464 | } | |
| 6465 | ||
| a33d1f77 AM |
6466 | switch (r_type) |
| 6467 | { | |
| 411e1bfb AM |
6468 | case R_PPC64_GOT_TLSLD16: |
| 6469 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6470 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6471 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6472 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6473 | goto dogot; |
| 6474 | ||
| 6475 | case R_PPC64_GOT_TLSGD16: | |
| 6476 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6477 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6478 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6479 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6480 | goto dogot; |
| 6481 | ||
| 6482 | case R_PPC64_GOT_TPREL16_DS: | |
| 6483 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6484 | case R_PPC64_GOT_TPREL16_HI: | |
| 6485 | case R_PPC64_GOT_TPREL16_HA: | |
| 6486 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6487 | goto dogot; | |
| 6488 | ||
| 6489 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6490 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6491 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6492 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6493 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6494 | goto dogot; | |
| 6495 | ||
| a33d1f77 AM |
6496 | case R_PPC64_GOT16: |
| 6497 | case R_PPC64_GOT16_DS: | |
| 6498 | case R_PPC64_GOT16_HA: | |
| 6499 | case R_PPC64_GOT16_HI: | |
| 6500 | case R_PPC64_GOT16_LO: | |
| 6501 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6502 | dogot: |
| 6503 | { | |
| 6504 | struct got_entry *ent; | |
| 6505 | ||
| 58ac9f71 AM |
6506 | if (h != NULL) |
| 6507 | ent = h->got.glist; | |
| 411e1bfb AM |
6508 | else |
| 6509 | ent = local_got_ents[r_symndx]; | |
| 6510 | ||
| 6511 | for (; ent != NULL; ent = ent->next) | |
| 6512 | if (ent->addend == rel->r_addend | |
| e717da7e | 6513 | && ent->owner == abfd |
| 411e1bfb AM |
6514 | && ent->tls_type == tls_type) |
| 6515 | break; | |
| 6516 | if (ent == NULL) | |
| 6517 | abort (); | |
| 6518 | if (ent->got.refcount > 0) | |
| 6519 | ent->got.refcount -= 1; | |
| 6520 | } | |
| a33d1f77 | 6521 | break; |
| 65f38f15 | 6522 | |
| a33d1f77 AM |
6523 | case R_PPC64_PLT16_HA: |
| 6524 | case R_PPC64_PLT16_HI: | |
| 6525 | case R_PPC64_PLT16_LO: | |
| 6526 | case R_PPC64_PLT32: | |
| 6527 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6528 | case R_PPC64_REL14: |
| 6529 | case R_PPC64_REL14_BRNTAKEN: | |
| 6530 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6531 | case R_PPC64_REL24: |
| 58ac9f71 | 6532 | if (h != NULL) |
| 5d1634d7 | 6533 | { |
| 411e1bfb AM |
6534 | struct plt_entry *ent; |
| 6535 | ||
| 411e1bfb AM |
6536 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 6537 | if (ent->addend == rel->r_addend) | |
| 6538 | break; | |
| 7c6c1722 | 6539 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6540 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6541 | } |
| e86ce104 | 6542 | break; |
| 5d1634d7 | 6543 | |
| a33d1f77 AM |
6544 | default: |
| 6545 | break; | |
| 6546 | } | |
| 6547 | } | |
| b34976b6 | 6548 | return TRUE; |
| 5bd4f169 AM |
6549 | } |
| 6550 | ||
| deb0e272 AM |
6551 | /* The maximum size of .sfpr. */ |
| 6552 | #define SFPR_MAX (218*4) | |
| 6553 | ||
| 6554 | struct sfpr_def_parms | |
| 6555 | { | |
| 699733f6 AM |
6556 | const char name[12]; |
| 6557 | unsigned char lo, hi; | |
| deb0e272 AM |
6558 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6559 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6560 | }; | |
| 6561 | ||
| 6562 | /* Auto-generate _save*, _rest* functions in .sfpr. */ | |
| 6563 | ||
| 4dfe6ac6 | 6564 | static bfd_boolean |
| deb0e272 AM |
6565 | sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm) |
| 6566 | { | |
| 6567 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6568 | unsigned int i; | |
| 6569 | size_t len = strlen (parm->name); | |
| 6570 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6571 | char sym[16]; |
| deb0e272 | 6572 | |
| 4dfe6ac6 NC |
6573 | if (htab == NULL) |
| 6574 | return FALSE; | |
| 6575 | ||
| deb0e272 AM |
6576 | memcpy (sym, parm->name, len); |
| 6577 | sym[len + 2] = 0; | |
| 6578 | ||
| 6579 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6580 | { | |
| 6581 | struct elf_link_hash_entry *h; | |
| 6582 | ||
| 6583 | sym[len + 0] = i / 10 + '0'; | |
| 6584 | sym[len + 1] = i % 10 + '0'; | |
| 6585 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
| 6586 | if (h != NULL | |
| f5385ebf | 6587 | && !h->def_regular) |
| deb0e272 AM |
6588 | { |
| 6589 | h->root.type = bfd_link_hash_defined; | |
| 6590 | h->root.u.def.section = htab->sfpr; | |
| 6591 | h->root.u.def.value = htab->sfpr->size; | |
| 6592 | h->type = STT_FUNC; | |
| f5385ebf | 6593 | h->def_regular = 1; |
| deb0e272 AM |
6594 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
| 6595 | writing = TRUE; | |
| 6596 | if (htab->sfpr->contents == NULL) | |
| 6597 | { | |
| 6598 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6599 | if (htab->sfpr->contents == NULL) | |
| 6600 | return FALSE; | |
| 6601 | } | |
| 6602 | } | |
| 6603 | if (writing) | |
| 6604 | { | |
| 6605 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6606 | if (i != parm->hi) | |
| 6607 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6608 | else | |
| 6609 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6610 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6611 | } | |
| 6612 | } | |
| 6613 | ||
| 6614 | return TRUE; | |
| 6615 | } | |
| 6616 | ||
| 6617 | static bfd_byte * | |
| 6618 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6619 | { | |
| 6620 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6621 | return p + 4; | |
| 6622 | } | |
| 6623 | ||
| 6624 | static bfd_byte * | |
| 6625 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6626 | { | |
| 6627 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6628 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6629 | p = p + 4; |
| 6630 | bfd_put_32 (abfd, BLR, p); | |
| 6631 | return p + 4; | |
| 6632 | } | |
| 6633 | ||
| 6634 | static bfd_byte * | |
| 6635 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6636 | { | |
| 6637 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6638 | return p + 4; | |
| 6639 | } | |
| 6640 | ||
| 6641 | static bfd_byte * | |
| 6642 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6643 | { | |
| a078d95a | 6644 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6645 | p = p + 4; |
| 6646 | p = restgpr0 (abfd, p, r); | |
| 6647 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6648 | p = p + 4; | |
| 6649 | if (r == 29) | |
| 6650 | { | |
| 6651 | p = restgpr0 (abfd, p, 30); | |
| 6652 | p = restgpr0 (abfd, p, 31); | |
| 6653 | } | |
| 6654 | bfd_put_32 (abfd, BLR, p); | |
| 6655 | return p + 4; | |
| 6656 | } | |
| 6657 | ||
| 6658 | static bfd_byte * | |
| 6659 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6660 | { | |
| 6661 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6662 | return p + 4; | |
| 6663 | } | |
| 6664 | ||
| 6665 | static bfd_byte * | |
| 6666 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6667 | { | |
| 6668 | p = savegpr1 (abfd, p, r); | |
| 6669 | bfd_put_32 (abfd, BLR, p); | |
| 6670 | return p + 4; | |
| 6671 | } | |
| 6672 | ||
| 6673 | static bfd_byte * | |
| 6674 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6675 | { | |
| 6676 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6677 | return p + 4; | |
| 6678 | } | |
| 6679 | ||
| 6680 | static bfd_byte * | |
| 6681 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6682 | { | |
| 6683 | p = restgpr1 (abfd, p, r); | |
| 6684 | bfd_put_32 (abfd, BLR, p); | |
| 6685 | return p + 4; | |
| 6686 | } | |
| 6687 | ||
| 6688 | static bfd_byte * | |
| 6689 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6690 | { | |
| 6691 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6692 | return p + 4; | |
| 6693 | } | |
| 6694 | ||
| 6695 | static bfd_byte * | |
| 6696 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6697 | { | |
| 6698 | p = savefpr (abfd, p, r); | |
| a078d95a | 6699 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6700 | p = p + 4; |
| 6701 | bfd_put_32 (abfd, BLR, p); | |
| 6702 | return p + 4; | |
| 6703 | } | |
| 6704 | ||
| 6705 | static bfd_byte * | |
| 6706 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6707 | { | |
| 6708 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6709 | return p + 4; | |
| 6710 | } | |
| 6711 | ||
| 6712 | static bfd_byte * | |
| 6713 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6714 | { | |
| a078d95a | 6715 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6716 | p = p + 4; |
| 6717 | p = restfpr (abfd, p, r); | |
| 6718 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6719 | p = p + 4; | |
| 6720 | if (r == 29) | |
| 6721 | { | |
| 6722 | p = restfpr (abfd, p, 30); | |
| 6723 | p = restfpr (abfd, p, 31); | |
| 6724 | } | |
| 6725 | bfd_put_32 (abfd, BLR, p); | |
| 6726 | return p + 4; | |
| 6727 | } | |
| 6728 | ||
| 6729 | static bfd_byte * | |
| 6730 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6731 | { | |
| 6732 | p = savefpr (abfd, p, r); | |
| 6733 | bfd_put_32 (abfd, BLR, p); | |
| 6734 | return p + 4; | |
| 6735 | } | |
| 6736 | ||
| 6737 | static bfd_byte * | |
| 6738 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6739 | { | |
| 6740 | p = restfpr (abfd, p, r); | |
| 6741 | bfd_put_32 (abfd, BLR, p); | |
| 6742 | return p + 4; | |
| 6743 | } | |
| 6744 | ||
| 6745 | static bfd_byte * | |
| 6746 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6747 | { | |
| 6748 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6749 | p = p + 4; | |
| 6750 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6751 | return p + 4; | |
| 6752 | } | |
| 6753 | ||
| 6754 | static bfd_byte * | |
| 6755 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6756 | { | |
| 6757 | p = savevr (abfd, p, r); | |
| 6758 | bfd_put_32 (abfd, BLR, p); | |
| 6759 | return p + 4; | |
| 6760 | } | |
| 6761 | ||
| 6762 | static bfd_byte * | |
| 6763 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6764 | { | |
| 6765 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6766 | p = p + 4; | |
| 6767 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6768 | return p + 4; | |
| 6769 | } | |
| 6770 | ||
| 6771 | static bfd_byte * | |
| 6772 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6773 | { | |
| 6774 | p = restvr (abfd, p, r); | |
| 6775 | bfd_put_32 (abfd, BLR, p); | |
| 6776 | return p + 4; | |
| 6777 | } | |
| 6778 | ||
| e86ce104 AM |
6779 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6780 | information on function code symbol entries to their corresponding | |
| 6781 | function descriptor symbol entries. */ | |
| deb0e272 | 6782 | |
| b34976b6 | 6783 | static bfd_boolean |
| 4ce794b7 | 6784 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6785 | { |
| e86ce104 | 6786 | struct bfd_link_info *info; |
| 65f38f15 | 6787 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6788 | struct plt_entry *ent; |
| 50bc7936 AM |
6789 | struct ppc_link_hash_entry *fh; |
| 6790 | struct ppc_link_hash_entry *fdh; | |
| 6791 | bfd_boolean force_local; | |
| 5bd4f169 | 6792 | |
| 50bc7936 AM |
6793 | fh = (struct ppc_link_hash_entry *) h; |
| 6794 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6795 | return TRUE; |
| e86ce104 | 6796 | |
| 4ce794b7 | 6797 | info = inf; |
| 65f38f15 | 6798 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6799 | if (htab == NULL) |
| 6800 | return FALSE; | |
| 5bd4f169 | 6801 | |
| c09bdfe5 AM |
6802 | /* Resolve undefined references to dot-symbols as the value |
| 6803 | in the function descriptor, if we have one in a regular object. | |
| 6804 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6805 | in dynamic objects are handled elsewhere. */ | |
| 6806 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6807 | && fh->was_undefined | |
| b31867b6 AM |
6808 | && (fdh = defined_func_desc (fh)) != NULL |
| 6809 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6810 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6811 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6812 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6813 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6814 | { |
| b31867b6 | 6815 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6816 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6817 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6818 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6819 | } |
| 6820 | ||
| e86ce104 AM |
6821 | /* If this is a function code symbol, transfer dynamic linking |
| 6822 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6823 | if (!fh->is_func) |
| b34976b6 | 6824 | return TRUE; |
| e86ce104 | 6825 | |
| 50bc7936 | 6826 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6827 | if (ent->plt.refcount > 0) |
| 6828 | break; | |
| 50bc7936 AM |
6829 | if (ent == NULL |
| 6830 | || fh->elf.root.root.string[0] != '.' | |
| 6831 | || fh->elf.root.root.string[1] == '\0') | |
| 6832 | return TRUE; | |
| 5bd4f169 | 6833 | |
| 50bc7936 AM |
6834 | /* Find the corresponding function descriptor symbol. Create it |
| 6835 | as undefined if necessary. */ | |
| 5bd4f169 | 6836 | |
| b31867b6 | 6837 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6838 | if (fdh == NULL |
| df131623 | 6839 | && !info->executable |
| 50bc7936 AM |
6840 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6841 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6842 | { | |
| 908b32fc | 6843 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6844 | if (fdh == NULL) |
| 6845 | return FALSE; | |
| 50bc7936 | 6846 | } |
| 648cca2c | 6847 | |
| 908b32fc | 6848 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6849 | code symbol is strong undefined, make the fake sym the same. |
| 6850 | If the function code symbol is defined, then force the fake | |
| 6851 | descriptor local; We can't support overriding of symbols in a | |
| 6852 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6853 | |
| 6854 | if (fdh != NULL | |
| 6855 | && fdh->fake | |
| 433817dd | 6856 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6857 | { |
| 433817dd AM |
6858 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6859 | { | |
| 6860 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6861 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6862 | } | |
| 6863 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6864 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6865 | { | |
| 6866 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6867 | } | |
| 908b32fc AM |
6868 | } |
| 6869 | ||
| 50bc7936 | 6870 | if (fdh != NULL |
| f5385ebf | 6871 | && !fdh->elf.forced_local |
| df131623 | 6872 | && (!info->executable |
| f5385ebf AM |
6873 | || fdh->elf.def_dynamic |
| 6874 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6875 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6876 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6877 | { | |
| 6878 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 6879 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 6880 | return FALSE; |
| f5385ebf AM |
6881 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6882 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6883 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6884 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 6885 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 6886 | { |
| 40d16e0b | 6887 | move_plt_plist (fh, fdh); |
| f5385ebf | 6888 | fdh->elf.needs_plt = 1; |
| e86ce104 | 6889 | } |
| 50bc7936 | 6890 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
6891 | fdh->oh = fh; |
| 6892 | fh->oh = fdh; | |
| e86ce104 AM |
6893 | } |
| 6894 | ||
| 50bc7936 AM |
6895 | /* Now that the info is on the function descriptor, clear the |
| 6896 | function code sym info. Any function code syms for which we | |
| 6897 | don't have a definition in a regular file, we force local. | |
| 6898 | This prevents a shared library from exporting syms that have | |
| 6899 | been imported from another library. Function code syms that | |
| 6900 | are really in the library we must leave global to prevent the | |
| 6901 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6902 | force_local = (!fh->elf.def_regular |
| 6903 | || fdh == NULL | |
| 6904 | || !fdh->elf.def_regular | |
| 6905 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6906 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6907 | ||
| b34976b6 | 6908 | return TRUE; |
| e86ce104 | 6909 | } |
| 40b8271b | 6910 | |
| e86ce104 | 6911 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6912 | this hook to a) provide some gcc support functions, and b) transfer |
| 6913 | dynamic linking information gathered so far on function code symbol | |
| 6914 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6915 | |
| b34976b6 | 6916 | static bfd_boolean |
| 4ce794b7 AM |
6917 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 6918 | struct bfd_link_info *info) | |
| e86ce104 AM |
6919 | { |
| 6920 | struct ppc_link_hash_table *htab; | |
| 82bd7b59 | 6921 | unsigned int i; |
| 27fc25a1 | 6922 | static const struct sfpr_def_parms funcs[] = |
| deb0e272 AM |
6923 | { |
| 6924 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6925 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6926 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6927 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6928 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6929 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6930 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6931 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6932 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6933 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6934 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6935 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6936 | }; | |
| e86ce104 AM |
6937 | |
| 6938 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6939 | if (htab == NULL) |
| 6940 | return FALSE; | |
| 6941 | ||
| 5295321c AM |
6942 | if (!info->relocatable |
| 6943 | && htab->elf.hgot != NULL) | |
| dba6fa9b AM |
6944 | { |
| 6945 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 6946 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 6947 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 6948 | htab->elf.hgot->type = STT_OBJECT; | |
| 6949 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 6950 | htab->elf.hgot->root.u.def.value = 0; | |
| 6951 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 6952 | htab->elf.hgot->def_regular = 1; | |
| 6953 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) | |
| 6954 | | STV_HIDDEN); | |
| 6955 | } | |
| c66bb0ee | 6956 | |
| 82bd7b59 AM |
6957 | if (htab->sfpr == NULL) |
| 6958 | /* We don't have any relocs. */ | |
| b34976b6 | 6959 | return TRUE; |
| 82bd7b59 | 6960 | |
| deb0e272 AM |
6961 | /* Provide any missing _save* and _rest* functions. */ |
| 6962 | htab->sfpr->size = 0; | |
| 7d4c687d | 6963 | if (htab->params->save_restore_funcs) |
| 27fc25a1 AM |
6964 | for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++) |
| 6965 | if (!sfpr_define (info, &funcs[i])) | |
| 6966 | return FALSE; | |
| 82bd7b59 | 6967 | |
| 4ce794b7 | 6968 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 6969 | |
| eea6121a | 6970 | if (htab->sfpr->size == 0) |
| 8423293d | 6971 | htab->sfpr->flags |= SEC_EXCLUDE; |
| 82bd7b59 | 6972 | |
| b34976b6 | 6973 | return TRUE; |
| e86ce104 AM |
6974 | } |
| 6975 | ||
| a345bc8d AM |
6976 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
| 6977 | ||
| 6978 | static bfd_boolean | |
| 6979 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 6980 | { | |
| 6981 | struct ppc_link_hash_entry *eh; | |
| 6982 | struct elf_dyn_relocs *p; | |
| 6983 | ||
| 6984 | eh = (struct ppc_link_hash_entry *) h; | |
| 6985 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 6986 | { | |
| 6987 | asection *s = p->sec->output_section; | |
| 6988 | ||
| 6989 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 6990 | return TRUE; | |
| 6991 | } | |
| 6992 | return FALSE; | |
| 6993 | } | |
| 6994 | ||
| e86ce104 AM |
6995 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 6996 | regular object. The current definition is in some section of the | |
| 6997 | dynamic object, but we're not including those sections. We have to | |
| 6998 | change the definition to something the rest of the link can | |
| 6999 | understand. */ | |
| 7000 | ||
| b34976b6 | 7001 | static bfd_boolean |
| 4ce794b7 AM |
7002 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7003 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7004 | { |
| 7005 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7006 | asection *s; |
| e86ce104 AM |
7007 | |
| 7008 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7009 | if (htab == NULL) |
| 7010 | return FALSE; | |
| e86ce104 AM |
7011 | |
| 7012 | /* Deal with function syms. */ | |
| 7013 | if (h->type == STT_FUNC | |
| e054468f | 7014 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7015 | || h->needs_plt) |
| e86ce104 AM |
7016 | { |
| 7017 | /* Clear procedure linkage table information for any symbol that | |
| 7018 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7019 | struct plt_entry *ent; |
| 7020 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7021 | if (ent->plt.refcount > 0) | |
| 7022 | break; | |
| 8387904d | 7023 | if (ent == NULL |
| e054468f AM |
7024 | || (h->type != STT_GNU_IFUNC |
| 7025 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7026 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 7027 | && h->root.type == bfd_link_hash_undefweak)))) | |
| 40b8271b | 7028 | { |
| 411e1bfb | 7029 | h->plt.plist = NULL; |
| f5385ebf | 7030 | h->needs_plt = 0; |
| d1eca1e4 | 7031 | h->pointer_equality_needed = 0; |
| 40b8271b | 7032 | } |
| a345bc8d AM |
7033 | else if (abiversion (info->output_bfd) == 2) |
| 7034 | { | |
| d1eca1e4 AM |
7035 | /* Taking a function's address in a read/write section |
| 7036 | doesn't require us to define the function symbol in the | |
| 7037 | executable on a global entry stub. A dynamic reloc can | |
| 7038 | be used instead. */ | |
| 7039 | if (h->pointer_equality_needed | |
| 1009ef28 | 7040 | && h->type != STT_GNU_IFUNC |
| d1eca1e4 AM |
7041 | && !readonly_dynrelocs (h)) |
| 7042 | { | |
| 7043 | h->pointer_equality_needed = 0; | |
| 7044 | h->non_got_ref = 0; | |
| 7045 | } | |
| 7046 | ||
| a345bc8d AM |
7047 | /* After adjust_dynamic_symbol, non_got_ref set in the |
| 7048 | non-shared case means that we have allocated space in | |
| 7049 | .dynbss for the symbol and thus dyn_relocs for this | |
| 7050 | symbol should be discarded. | |
| 7051 | If we get here we know we are making a PLT entry for this | |
| 7052 | symbol, and in an executable we'd normally resolve | |
| 7053 | relocations against this symbol to the PLT entry. Allow | |
| 7054 | dynamic relocs if the reference is weak, and the dynamic | |
| 7055 | relocs will not cause text relocation. */ | |
| d1eca1e4 AM |
7056 | else if (!h->ref_regular_nonweak |
| 7057 | && h->non_got_ref | |
| 7058 | && h->type != STT_GNU_IFUNC | |
| 7059 | && !readonly_dynrelocs (h)) | |
| a345bc8d AM |
7060 | h->non_got_ref = 0; |
| 7061 | ||
| 7062 | /* If making a plt entry, then we don't need copy relocs. */ | |
| 7063 | return TRUE; | |
| 7064 | } | |
| 5bd4f169 | 7065 | } |
| bbd7ec4a | 7066 | else |
| 411e1bfb | 7067 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7068 | |
| 7069 | /* If this is a weak symbol, and there is a real definition, the | |
| 7070 | processor independent code will have arranged for us to see the | |
| 7071 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7072 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7073 | { |
| f6e332e6 AM |
7074 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7075 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7076 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7077 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7078 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7079 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7080 | return TRUE; |
| 5bd4f169 AM |
7081 | } |
| 7082 | ||
| 5bd4f169 AM |
7083 | /* If we are creating a shared library, we must presume that the |
| 7084 | only references to the symbol are via the global offset table. | |
| 7085 | For such cases we need not do anything here; the relocations will | |
| 7086 | be handled correctly by relocate_section. */ | |
| 7087 | if (info->shared) | |
| b34976b6 | 7088 | return TRUE; |
| 5bd4f169 | 7089 | |
| 65f38f15 AM |
7090 | /* If there are no references to this symbol that do not use the |
| 7091 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7092 | if (!h->non_got_ref) |
| b34976b6 | 7093 | return TRUE; |
| 65f38f15 | 7094 | |
| b186458a JJ |
7095 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 7096 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 7097 | return TRUE; | |
| 7098 | ||
| a127494f AM |
7099 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7100 | if (info->nocopyreloc) | |
| 7101 | { | |
| 7102 | h->non_got_ref = 0; | |
| 7103 | return TRUE; | |
| 7104 | } | |
| 7105 | ||
| a345bc8d AM |
7106 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7107 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 7108 | if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h)) | |
| 65f38f15 | 7109 | { |
| a345bc8d AM |
7110 | h->non_got_ref = 0; |
| 7111 | return TRUE; | |
| 65f38f15 AM |
7112 | } |
| 7113 | ||
| a127494f AM |
7114 | /* Protected variables do not work with .dynbss. The copy in |
| 7115 | .dynbss won't be used by the shared library with the protected | |
| 7116 | definition for the variable. Text relocations are preferable | |
| 7117 | to an incorrect program. */ | |
| 7118 | if (h->protected_def) | |
| 7119 | { | |
| 7120 | h->non_got_ref = 0; | |
| 7121 | return TRUE; | |
| 7122 | } | |
| 7123 | ||
| 5d35169e | 7124 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7125 | { |
| 7126 | /* We should never get here, but unfortunately there are versions | |
| 7127 | of gcc out there that improperly (for this ABI) put initialized | |
| 7128 | function pointers, vtable refs and suchlike in read-only | |
| 7129 | sections. Allow them to proceed, but warn that this might | |
| 7130 | break at runtime. */ | |
| 25f53a85 | 7131 | info->callbacks->einfo |
| bc30df16 | 7132 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7133 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7134 | h->root.root.string); |
| 7135 | } | |
| 5d35169e AM |
7136 | |
| 7137 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7138 | is not a function. */ | |
| 7139 | ||
| 5bd4f169 AM |
7140 | /* We must allocate the symbol in our .dynbss section, which will |
| 7141 | become part of the .bss section of the executable. There will be | |
| 7142 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7143 | object will contain position independent code, so all references | |
| 7144 | from the dynamic object to this symbol will go through the global | |
| 7145 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7146 | determine the address it must put in the global offset table, so | |
| 7147 | both the dynamic object and the regular object will refer to the | |
| 7148 | same memory location for the variable. */ | |
| 5bd4f169 | 7149 | |
| 04c9666a AM |
7150 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7151 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7152 | runtime process image. We need to remember the offset into the |
| 7153 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7154 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7155 | { |
| eea6121a | 7156 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7157 | h->needs_copy = 1; |
| 5bd4f169 AM |
7158 | } |
| 7159 | ||
| 4ce794b7 | 7160 | s = htab->dynbss; |
| 5bd4f169 | 7161 | |
| 6cabe1ea | 7162 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7163 | } |
| 7164 | ||
| e86ce104 AM |
7165 | /* If given a function descriptor symbol, hide both the function code |
| 7166 | sym and the descriptor. */ | |
| 7167 | static void | |
| 4ce794b7 AM |
7168 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7169 | struct elf_link_hash_entry *h, | |
| 7170 | bfd_boolean force_local) | |
| e86ce104 | 7171 | { |
| 34814b9f | 7172 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7173 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7174 | ||
| 34814b9f AM |
7175 | eh = (struct ppc_link_hash_entry *) h; |
| 7176 | if (eh->is_func_descriptor) | |
| e86ce104 | 7177 | { |
| 34814b9f | 7178 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7179 | |
| 721956f4 | 7180 | if (fh == NULL) |
| d1329ca3 AM |
7181 | { |
| 7182 | const char *p, *q; | |
| 7183 | struct ppc_link_hash_table *htab; | |
| 7184 | char save; | |
| 7185 | ||
| 7186 | /* We aren't supposed to use alloca in BFD because on | |
| 7187 | systems which do not have alloca the version in libiberty | |
| 7188 | calls xmalloc, which might cause the program to crash | |
| 7189 | when it runs out of memory. This function doesn't have a | |
| 7190 | return status, so there's no way to gracefully return an | |
| 7191 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7192 | accessed; It's either a string in an ELF string table, |
| 7193 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7194 | |
| 34814b9f | 7195 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7196 | save = *p; |
| 7197 | *(char *) p = '.'; | |
| 7198 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7199 | if (htab == NULL) |
| 7200 | return; | |
| 7201 | ||
| 34814b9f AM |
7202 | fh = (struct ppc_link_hash_entry *) |
| 7203 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7204 | *(char *) p = save; |
| 7205 | ||
| 7206 | /* Unfortunately, if it so happens that the string we were | |
| 7207 | looking for was allocated immediately before this string, | |
| 7208 | then we overwrote the string terminator. That's the only | |
| 7209 | reason the lookup should fail. */ | |
| 7210 | if (fh == NULL) | |
| 7211 | { | |
| 34814b9f AM |
7212 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7213 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7214 | --q, --p; |
| 34814b9f AM |
7215 | if (q < eh->elf.root.root.string && *p == '.') |
| 7216 | fh = (struct ppc_link_hash_entry *) | |
| 7217 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7218 | } |
| 7219 | if (fh != NULL) | |
| 7220 | { | |
| 34814b9f AM |
7221 | eh->oh = fh; |
| 7222 | fh->oh = eh; | |
| d1329ca3 AM |
7223 | } |
| 7224 | } | |
| e86ce104 | 7225 | if (fh != NULL) |
| 34814b9f | 7226 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7227 | } |
| 7228 | } | |
| 7229 | ||
| 411e1bfb | 7230 | static bfd_boolean |
| 8843416a AM |
7231 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7232 | Elf_Internal_Sym **symp, | |
| 7233 | asection **symsecp, | |
| f961d9dd | 7234 | unsigned char **tls_maskp, |
| 8843416a AM |
7235 | Elf_Internal_Sym **locsymsp, |
| 7236 | unsigned long r_symndx, | |
| 7237 | bfd *ibfd) | |
| 411e1bfb | 7238 | { |
| 0ffa91dd | 7239 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7240 | |
| 7241 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7242 | { | |
| 7243 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7244 | struct elf_link_hash_entry *h; | |
| 7245 | ||
| 7246 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7247 | h = elf_follow_link (h); |
| 411e1bfb AM |
7248 | |
| 7249 | if (hp != NULL) | |
| 7250 | *hp = h; | |
| 7251 | ||
| 7252 | if (symp != NULL) | |
| 7253 | *symp = NULL; | |
| 7254 | ||
| 7255 | if (symsecp != NULL) | |
| 7256 | { | |
| 7257 | asection *symsec = NULL; | |
| 7258 | if (h->root.type == bfd_link_hash_defined | |
| 7259 | || h->root.type == bfd_link_hash_defweak) | |
| 7260 | symsec = h->root.u.def.section; | |
| 7261 | *symsecp = symsec; | |
| 7262 | } | |
| 7263 | ||
| e7b938ca | 7264 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7265 | { |
| 7266 | struct ppc_link_hash_entry *eh; | |
| 7267 | ||
| 7268 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7269 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7270 | } |
| 7271 | } | |
| 7272 | else | |
| 7273 | { | |
| 7274 | Elf_Internal_Sym *sym; | |
| 7275 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7276 | ||
| 7277 | if (locsyms == NULL) | |
| 7278 | { | |
| 7279 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7280 | if (locsyms == NULL) | |
| 7281 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7282 | symtab_hdr->sh_info, | |
| 7283 | 0, NULL, NULL, NULL); | |
| 7284 | if (locsyms == NULL) | |
| 7285 | return FALSE; | |
| 7286 | *locsymsp = locsyms; | |
| 7287 | } | |
| 7288 | sym = locsyms + r_symndx; | |
| 7289 | ||
| 7290 | if (hp != NULL) | |
| 7291 | *hp = NULL; | |
| 7292 | ||
| 7293 | if (symp != NULL) | |
| 7294 | *symp = sym; | |
| 7295 | ||
| 7296 | if (symsecp != NULL) | |
| cb33740c | 7297 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7298 | |
| e7b938ca | 7299 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7300 | { |
| 7301 | struct got_entry **lgot_ents; | |
| f961d9dd | 7302 | unsigned char *tls_mask; |
| 411e1bfb | 7303 | |
| e7b938ca | 7304 | tls_mask = NULL; |
| 411e1bfb AM |
7305 | lgot_ents = elf_local_got_ents (ibfd); |
| 7306 | if (lgot_ents != NULL) | |
| 7307 | { | |
| e054468f AM |
7308 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7309 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7310 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7311 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7312 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7313 | } |
| e7b938ca | 7314 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7315 | } |
| 7316 | } | |
| 7317 | return TRUE; | |
| 7318 | } | |
| 7319 | ||
| e7b938ca | 7320 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7321 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7322 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7323 | |
| 7324 | static int | |
| f961d9dd | 7325 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7326 | unsigned long *toc_symndx, |
| 7327 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7328 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7329 | const Elf_Internal_Rela *rel, |
| 7330 | bfd *ibfd) | |
| 411e1bfb AM |
7331 | { |
| 7332 | unsigned long r_symndx; | |
| 0d4792f7 | 7333 | int next_r; |
| 411e1bfb AM |
7334 | struct elf_link_hash_entry *h; |
| 7335 | Elf_Internal_Sym *sym; | |
| 7336 | asection *sec; | |
| 7337 | bfd_vma off; | |
| 7338 | ||
| 7339 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7340 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7341 | return 0; |
| 411e1bfb | 7342 | |
| e7b938ca | 7343 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7344 | || sec == NULL |
| 6bee8834 | 7345 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7346 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7347 | return 1; |
| 411e1bfb AM |
7348 | |
| 7349 | /* Look inside a TOC section too. */ | |
| 7350 | if (h != NULL) | |
| 7351 | { | |
| 7352 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7353 | off = h->root.u.def.value; | |
| 7354 | } | |
| 7355 | else | |
| 7356 | off = sym->st_value; | |
| 7357 | off += rel->r_addend; | |
| 7358 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7359 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7360 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7361 | if (toc_symndx != NULL) |
| 7362 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7363 | if (toc_addend != NULL) |
| 7364 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7365 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7366 | return 0; | |
| 854b41e7 | 7367 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7368 | && (next_r == -1 || next_r == -2)) |
| 7369 | return 1 - next_r; | |
| 951fd09b | 7370 | return 1; |
| 411e1bfb AM |
7371 | } |
| 7372 | ||
| 3b421ab3 AM |
7373 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7374 | ||
| 7375 | static struct tocsave_entry * | |
| 7376 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7377 | enum insert_option insert, | |
| 7378 | Elf_Internal_Sym **local_syms, | |
| 7379 | const Elf_Internal_Rela *irela, | |
| 7380 | bfd *ibfd) | |
| 7381 | { | |
| 7382 | unsigned long r_indx; | |
| 7383 | struct elf_link_hash_entry *h; | |
| 7384 | Elf_Internal_Sym *sym; | |
| 7385 | struct tocsave_entry ent, *p; | |
| 7386 | hashval_t hash; | |
| 7387 | struct tocsave_entry **slot; | |
| 7388 | ||
| 7389 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7390 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7391 | return NULL; | |
| 7392 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7393 | { | |
| 7394 | (*_bfd_error_handler) | |
| 7395 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7396 | return NULL; | |
| 7397 | } | |
| 7398 | ||
| 7399 | if (h != NULL) | |
| 7400 | ent.offset = h->root.u.def.value; | |
| 7401 | else | |
| 7402 | ent.offset = sym->st_value; | |
| 7403 | ent.offset += irela->r_addend; | |
| 7404 | ||
| 7405 | hash = tocsave_htab_hash (&ent); | |
| 7406 | slot = ((struct tocsave_entry **) | |
| 7407 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7408 | if (slot == NULL) | |
| 7409 | return NULL; | |
| 7410 | ||
| 7411 | if (*slot == NULL) | |
| 7412 | { | |
| 7413 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7414 | if (p == NULL) | |
| 7415 | return NULL; | |
| 7416 | *p = ent; | |
| 7417 | *slot = p; | |
| 7418 | } | |
| 7419 | return *slot; | |
| 7420 | } | |
| 7421 | ||
| 754021d0 | 7422 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7423 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7424 | |
| 7425 | static bfd_boolean | |
| 7426 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7427 | { | |
| 7428 | struct ppc_link_hash_entry *eh; | |
| 7429 | asection *sym_sec; | |
| 74f0fb50 | 7430 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7431 | |
| 7432 | if (h->root.type == bfd_link_hash_indirect) | |
| 7433 | return TRUE; | |
| 7434 | ||
| 754021d0 AM |
7435 | if (h->root.type != bfd_link_hash_defined |
| 7436 | && h->root.type != bfd_link_hash_defweak) | |
| 7437 | return TRUE; | |
| 7438 | ||
| 7439 | eh = (struct ppc_link_hash_entry *) h; | |
| 7440 | if (eh->adjust_done) | |
| 7441 | return TRUE; | |
| 7442 | ||
| 7443 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7444 | opd = get_opd_info (sym_sec); |
| 7445 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7446 | { |
| 51aecdc5 | 7447 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7448 | if (adjust == -1) |
| 7449 | { | |
| 7450 | /* This entry has been deleted. */ | |
| b3fac117 | 7451 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7452 | if (dsec == NULL) |
| 7453 | { | |
| 7454 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7455 | if (discarded_section (dsec)) |
| 81688140 | 7456 | { |
| b3fac117 | 7457 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7458 | break; |
| 7459 | } | |
| 7460 | } | |
| 4025353c | 7461 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7462 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7463 | } |
| 7464 | else | |
| 7465 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7466 | eh->adjust_done = 1; |
| 7467 | } | |
| 7468 | return TRUE; | |
| 7469 | } | |
| 7470 | ||
| 8c1d1bb8 | 7471 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7472 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7473 | have already been determined. */ |
| 7474 | ||
| 7475 | static bfd_boolean | |
| 7476 | dec_dynrel_count (bfd_vma r_info, | |
| 7477 | asection *sec, | |
| 7478 | struct bfd_link_info *info, | |
| 7479 | Elf_Internal_Sym **local_syms, | |
| 7480 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7481 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7482 | { |
| 7483 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7484 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7485 | |
| 7486 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7487 | should be kept in sync with the code in check_relocs. */ | |
| 7488 | r_type = ELF64_R_TYPE (r_info); | |
| 7489 | switch (r_type) | |
| 7490 | { | |
| 7491 | default: | |
| 7492 | return TRUE; | |
| 7493 | ||
| 7494 | case R_PPC64_TPREL16: | |
| 7495 | case R_PPC64_TPREL16_LO: | |
| 7496 | case R_PPC64_TPREL16_HI: | |
| 7497 | case R_PPC64_TPREL16_HA: | |
| 7498 | case R_PPC64_TPREL16_DS: | |
| 7499 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7500 | case R_PPC64_TPREL16_HIGH: |
| 7501 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7502 | case R_PPC64_TPREL16_HIGHER: |
| 7503 | case R_PPC64_TPREL16_HIGHERA: | |
| 7504 | case R_PPC64_TPREL16_HIGHEST: | |
| 7505 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7506 | if (!info->shared) | |
| 7507 | return TRUE; | |
| 7508 | ||
| 7509 | case R_PPC64_TPREL64: | |
| 7510 | case R_PPC64_DTPMOD64: | |
| 7511 | case R_PPC64_DTPREL64: | |
| 7512 | case R_PPC64_ADDR64: | |
| 7513 | case R_PPC64_REL30: | |
| 7514 | case R_PPC64_REL32: | |
| 7515 | case R_PPC64_REL64: | |
| 7516 | case R_PPC64_ADDR14: | |
| 7517 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7518 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7519 | case R_PPC64_ADDR16: | |
| 7520 | case R_PPC64_ADDR16_DS: | |
| 7521 | case R_PPC64_ADDR16_HA: | |
| 7522 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7523 | case R_PPC64_ADDR16_HIGH: |
| 7524 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7525 | case R_PPC64_ADDR16_HIGHER: |
| 7526 | case R_PPC64_ADDR16_HIGHERA: | |
| 7527 | case R_PPC64_ADDR16_HIGHEST: | |
| 7528 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7529 | case R_PPC64_ADDR16_LO: | |
| 7530 | case R_PPC64_ADDR16_LO_DS: | |
| 7531 | case R_PPC64_ADDR24: | |
| 7532 | case R_PPC64_ADDR32: | |
| 7533 | case R_PPC64_UADDR16: | |
| 7534 | case R_PPC64_UADDR32: | |
| 7535 | case R_PPC64_UADDR64: | |
| 7536 | case R_PPC64_TOC: | |
| 7537 | break; | |
| 7538 | } | |
| 7539 | ||
| 7540 | if (local_syms != NULL) | |
| 7541 | { | |
| 7542 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7543 | bfd *ibfd = sec->owner; |
| 7544 | ||
| 7545 | r_symndx = ELF64_R_SYM (r_info); | |
| 7546 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7547 | return FALSE; | |
| 7548 | } | |
| 7549 | ||
| 7550 | if ((info->shared | |
| 1d483afe | 7551 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7552 | || (h != NULL |
| 198f1157 | 7553 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7554 | || h->root.type == bfd_link_hash_defweak |
| 7555 | || !h->def_regular)))) | |
| 7556 | || (ELIMINATE_COPY_RELOCS | |
| 7557 | && !info->shared | |
| 7558 | && h != NULL | |
| 7559 | && (h->root.type == bfd_link_hash_defweak | |
| 7560 | || !h->def_regular))) | |
| 7561 | ; | |
| 7562 | else | |
| 7563 | return TRUE; | |
| 7564 | ||
| 7565 | if (h != NULL) | |
| 6edfbbad | 7566 | { |
| 19e08130 AM |
7567 | struct elf_dyn_relocs *p; |
| 7568 | struct elf_dyn_relocs **pp; | |
| 7569 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7570 | ||
| 7571 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7572 | with local syms for a given section. Also, symbol flags are | |
| 7573 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7574 | report a dynreloc miscount. */ | |
| 7575 | if (*pp == NULL && info->gc_sections) | |
| 7576 | return TRUE; | |
| 7577 | ||
| 7578 | while ((p = *pp) != NULL) | |
| 60124e18 | 7579 | { |
| 19e08130 AM |
7580 | if (p->sec == sec) |
| 7581 | { | |
| 7582 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7583 | p->pc_count -= 1; | |
| 7584 | p->count -= 1; | |
| 7585 | if (p->count == 0) | |
| 7586 | *pp = p->next; | |
| 7587 | return TRUE; | |
| 7588 | } | |
| 7589 | pp = &p->next; | |
| 60124e18 | 7590 | } |
| 6edfbbad | 7591 | } |
| 19e08130 AM |
7592 | else |
| 7593 | { | |
| 7594 | struct ppc_dyn_relocs *p; | |
| 7595 | struct ppc_dyn_relocs **pp; | |
| 7596 | void *vpp; | |
| 7597 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7598 | |
| 19e08130 AM |
7599 | if (local_syms == NULL) |
| 7600 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7601 | if (sym_sec == NULL) | |
| 7602 | sym_sec = sec; | |
| c57da1a7 | 7603 | |
| 19e08130 AM |
7604 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7605 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7606 | ||
| 7607 | if (*pp == NULL && info->gc_sections) | |
| 7608 | return TRUE; | |
| 7609 | ||
| 7610 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7611 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7612 | { |
| 19e08130 AM |
7613 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7614 | { | |
| 7615 | p->count -= 1; | |
| 7616 | if (p->count == 0) | |
| 7617 | *pp = p->next; | |
| 7618 | return TRUE; | |
| 7619 | } | |
| 7620 | pp = &p->next; | |
| 8c1d1bb8 | 7621 | } |
| 8c1d1bb8 AM |
7622 | } |
| 7623 | ||
| 8de848d8 | 7624 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7625 | sec->owner, sec); |
| 8c1d1bb8 AM |
7626 | bfd_set_error (bfd_error_bad_value); |
| 7627 | return FALSE; | |
| 7628 | } | |
| 7629 | ||
| 754021d0 AM |
7630 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7631 | only remove those associated with functions in discarded link-once | |
| 7632 | sections, or weakly defined functions that have been overridden. It | |
| 7633 | would be possible to remove many more entries for statically linked | |
| 7634 | applications. */ | |
| 7635 | ||
| b34976b6 | 7636 | bfd_boolean |
| e7d1c40c | 7637 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7638 | { |
| 7639 | bfd *ibfd; | |
| 754021d0 | 7640 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7641 | asection *need_pad = NULL; |
| e7d1c40c AM |
7642 | struct ppc_link_hash_table *htab; |
| 7643 | ||
| 7644 | htab = ppc_hash_table (info); | |
| 7645 | if (htab == NULL) | |
| 7646 | return FALSE; | |
| 1e2f5b6e | 7647 | |
| c72f2fb2 | 7648 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7649 | { |
| 7650 | asection *sec; | |
| 7651 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7652 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7653 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7654 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7655 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7656 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7657 | |
| 854b41e7 AM |
7658 | if (!is_ppc64_elf (ibfd)) |
| 7659 | continue; | |
| 7660 | ||
| 1e2f5b6e | 7661 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7662 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7663 | continue; |
| 7664 | ||
| dbaa2011 | 7665 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7666 | continue; |
| 7667 | ||
| 1e2f5b6e AM |
7668 | if (sec->output_section == bfd_abs_section_ptr) |
| 7669 | continue; | |
| 7670 | ||
| 7671 | /* Look through the section relocs. */ | |
| 7672 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7673 | continue; | |
| 7674 | ||
| 6cdc0ccc | 7675 | local_syms = NULL; |
| 0ffa91dd | 7676 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7677 | |
| 7678 | /* Read the relocations. */ | |
| 4ce794b7 | 7679 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7680 | info->keep_memory); |
| 1e2f5b6e | 7681 | if (relstart == NULL) |
| b34976b6 | 7682 | return FALSE; |
| 1e2f5b6e AM |
7683 | |
| 7684 | /* First run through the relocs to check they are sane, and to | |
| 7685 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7686 | need_edit = FALSE; |
| 51aecdc5 | 7687 | broken = FALSE; |
| 3f764659 | 7688 | need_pad = sec; |
| 1e2f5b6e | 7689 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7690 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7691 | { |
| 04c9666a | 7692 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7693 | unsigned long r_symndx; |
| 7694 | asection *sym_sec; | |
| 7695 | struct elf_link_hash_entry *h; | |
| 7696 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7697 | bfd_vma offset; |
| 1e2f5b6e | 7698 | |
| 51aecdc5 | 7699 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7700 | only interested in the reloc pointing to a function entry |
| 7701 | point. */ | |
| 51aecdc5 AM |
7702 | offset = rel->r_offset; |
| 7703 | if (rel + 1 == relend | |
| 7704 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7705 | { |
| 7706 | /* If someone messes with .opd alignment then after a | |
| 7707 | "ld -r" we might have padding in the middle of .opd. | |
| 7708 | Also, there's nothing to prevent someone putting | |
| 7709 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7710 | optimization for them! */ |
| 3f764659 | 7711 | broken_opd: |
| 1e2f5b6e | 7712 | (*_bfd_error_handler) |
| d003868e | 7713 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7714 | broken = TRUE; |
| 1e2f5b6e AM |
7715 | break; |
| 7716 | } | |
| 7717 | ||
| 50bc7936 AM |
7718 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7719 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7720 | { | |
| 7721 | (*_bfd_error_handler) | |
| d003868e AM |
7722 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7723 | ibfd, r_type); | |
| 51aecdc5 | 7724 | broken = TRUE; |
| 50bc7936 AM |
7725 | break; |
| 7726 | } | |
| 7727 | ||
| 1e2f5b6e | 7728 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7729 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7730 | r_symndx, ibfd)) | |
| 50bc7936 | 7731 | goto error_ret; |
| 1e2f5b6e AM |
7732 | |
| 7733 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7734 | { | |
| 411e1bfb AM |
7735 | const char *sym_name; |
| 7736 | if (h != NULL) | |
| 7737 | sym_name = h->root.root.string; | |
| 7738 | else | |
| 26c61ae5 L |
7739 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7740 | sym_sec); | |
| 411e1bfb | 7741 | |
| 1e2f5b6e | 7742 | (*_bfd_error_handler) |
| d003868e AM |
7743 | (_("%B: undefined sym `%s' in .opd section"), |
| 7744 | ibfd, sym_name); | |
| 51aecdc5 | 7745 | broken = TRUE; |
| 1e2f5b6e AM |
7746 | break; |
| 7747 | } | |
| 7748 | ||
| 51020317 AM |
7749 | /* opd entries are always for functions defined in the |
| 7750 | current input bfd. If the symbol isn't defined in the | |
| 7751 | input bfd, then we won't be using the function in this | |
| 7752 | bfd; It must be defined in a linkonce section in another | |
| 7753 | bfd, or is weak. It's also possible that we are | |
| 7754 | discarding the function due to a linker script /DISCARD/, | |
| 7755 | which we test for via the output_section. */ | |
| 7756 | if (sym_sec->owner != ibfd | |
| 7757 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7758 | need_edit = TRUE; |
| 1e2f5b6e | 7759 | |
| 50bc7936 | 7760 | rel += 2; |
| 51aecdc5 AM |
7761 | if (rel + 1 == relend |
| 7762 | || (rel + 2 < relend | |
| 7763 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7764 | ++rel; | |
| 7765 | ||
| 7766 | if (rel == relend) | |
| 3f764659 JJ |
7767 | { |
| 7768 | if (sec->size == offset + 24) | |
| 7769 | { | |
| 7770 | need_pad = NULL; | |
| 7771 | break; | |
| 7772 | } | |
| 51aecdc5 | 7773 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7774 | { |
| 7775 | cnt_16b++; | |
| 7776 | break; | |
| 7777 | } | |
| 7778 | goto broken_opd; | |
| 7779 | } | |
| 3f764659 JJ |
7780 | else if (rel + 1 < relend |
| 7781 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7782 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7783 | { | |
| 51aecdc5 AM |
7784 | if (rel[0].r_offset == offset + 16) |
| 7785 | cnt_16b++; | |
| 7786 | else if (rel[0].r_offset != offset + 24) | |
| 7787 | goto broken_opd; | |
| 3f764659 JJ |
7788 | } |
| 7789 | else | |
| 7790 | goto broken_opd; | |
| 1e2f5b6e AM |
7791 | } |
| 7792 | ||
| e7d1c40c | 7793 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7794 | |
| 51aecdc5 | 7795 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7796 | { |
| 7797 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7798 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7799 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7800 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7801 | bfd_size_type amt; |
| 7802 | ||
| 983bddc8 | 7803 | new_contents = NULL; |
| 51aecdc5 | 7804 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7805 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7806 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7807 | if (opd->adjust == NULL) |
| 7808 | return FALSE; | |
| 7809 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7810 | |
| 7811 | /* This seems a waste of time as input .opd sections are all | |
| 7812 | zeros as generated by gcc, but I suppose there's no reason | |
| 7813 | this will always be so. We might start putting something in | |
| 7814 | the third word of .opd entries. */ | |
| 7815 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7816 | { | |
| eea6121a AM |
7817 | bfd_byte *loc; |
| 7818 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7819 | { |
| eea6121a AM |
7820 | if (loc != NULL) |
| 7821 | free (loc); | |
| 50bc7936 | 7822 | error_ret: |
| 6cdc0ccc AM |
7823 | if (local_syms != NULL |
| 7824 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7825 | free (local_syms); | |
| 6cdc0ccc AM |
7826 | if (elf_section_data (sec)->relocs != relstart) |
| 7827 | free (relstart); | |
| b34976b6 | 7828 | return FALSE; |
| 6cdc0ccc | 7829 | } |
| 1e2f5b6e AM |
7830 | sec->contents = loc; |
| 7831 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7832 | } | |
| 7833 | ||
| 7834 | elf_section_data (sec)->relocs = relstart; | |
| 7835 | ||
| 3f764659 | 7836 | new_contents = sec->contents; |
| 3f764659 JJ |
7837 | if (add_aux_fields) |
| 7838 | { | |
| 7839 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7840 | if (new_contents == NULL) | |
| 7841 | return FALSE; | |
| 51aecdc5 | 7842 | need_pad = NULL; |
| 3f764659 | 7843 | } |
| b4f4e59f AM |
7844 | wptr = new_contents; |
| 7845 | rptr = sec->contents; | |
| 1e2f5b6e | 7846 | write_rel = relstart; |
| 51aecdc5 | 7847 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7848 | { |
| 50bc7936 AM |
7849 | unsigned long r_symndx; |
| 7850 | asection *sym_sec; | |
| 7851 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7852 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7853 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7854 | long opd_ent_size; |
| 7855 | Elf_Internal_Rela *next_rel; | |
| 7856 | bfd_boolean skip; | |
| 50bc7936 AM |
7857 | |
| 7858 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7859 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7860 | r_symndx, ibfd)) |
| 50bc7936 AM |
7861 | goto error_ret; |
| 7862 | ||
| 51aecdc5 AM |
7863 | next_rel = rel + 2; |
| 7864 | if (next_rel + 1 == relend | |
| 7865 | || (next_rel + 2 < relend | |
| 7866 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 7867 | ++next_rel; | |
| 7868 | ||
| 7869 | /* See if the .opd entry is full 24 byte or | |
| 7870 | 16 byte (with fd_aux entry overlapped with next | |
| 7871 | fd_func). */ | |
| 7872 | opd_ent_size = 24; | |
| 7873 | if (next_rel == relend) | |
| 1e2f5b6e | 7874 | { |
| 51aecdc5 | 7875 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 7876 | opd_ent_size = 16; |
| 51aecdc5 AM |
7877 | } |
| 7878 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 7879 | opd_ent_size = 16; | |
| 3f764659 | 7880 | |
| 51aecdc5 AM |
7881 | if (h != NULL |
| 7882 | && h->root.root.string[0] == '.') | |
| 7883 | { | |
| 7884 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab); | |
| 7885 | if (fdh != NULL | |
| 7886 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 7887 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 7888 | fdh = NULL; | |
| 7889 | } | |
| 1e2f5b6e | 7890 | |
| 51aecdc5 AM |
7891 | skip = (sym_sec->owner != ibfd |
| 7892 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 7893 | if (skip) | |
| 7894 | { | |
| 7895 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 7896 | { |
| 51aecdc5 AM |
7897 | /* Arrange for the function descriptor sym |
| 7898 | to be dropped. */ | |
| 7899 | fdh->elf.root.u.def.value = 0; | |
| 7900 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 7901 | } |
| 51aecdc5 | 7902 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 7903 | |
| 51aecdc5 AM |
7904 | if (NO_OPD_RELOCS || info->relocatable) |
| 7905 | rel = next_rel; | |
| 7906 | else | |
| 7907 | while (1) | |
| 7908 | { | |
| 7909 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 7910 | NULL, h, sym)) | |
| 7911 | goto error_ret; | |
| 754021d0 | 7912 | |
| 51aecdc5 AM |
7913 | if (++rel == next_rel) |
| 7914 | break; | |
| 1e2f5b6e | 7915 | |
| 51aecdc5 AM |
7916 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 7917 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 7918 | r_symndx, ibfd)) | |
| 7919 | goto error_ret; | |
| 7920 | } | |
| 50bc7936 AM |
7921 | } |
| 7922 | else | |
| 1e2f5b6e | 7923 | { |
| 51aecdc5 AM |
7924 | /* We'll be keeping this opd entry. */ |
| 7925 | long adjust; | |
| 7926 | ||
| 7927 | if (fdh != NULL) | |
| 7928 | { | |
| 7929 | /* Redefine the function descriptor symbol to | |
| 7930 | this location in the opd section. It is | |
| 7931 | necessary to update the value here rather | |
| 7932 | than using an array of adjustments as we do | |
| 7933 | for local symbols, because various places | |
| 7934 | in the generic ELF code use the value | |
| 7935 | stored in u.def.value. */ | |
| 7936 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 7937 | fdh->adjust_done = 1; | |
| 7938 | } | |
| 7939 | ||
| 7940 | /* Local syms are a bit tricky. We could | |
| 7941 | tweak them as they can be cached, but | |
| 7942 | we'd need to look through the local syms | |
| 7943 | for the function descriptor sym which we | |
| 7944 | don't have at the moment. So keep an | |
| 7945 | array of adjustments. */ | |
| 7946 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 7947 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 7948 | ||
| 7949 | if (wptr != rptr) | |
| 7950 | memcpy (wptr, rptr, opd_ent_size); | |
| 7951 | wptr += opd_ent_size; | |
| 7952 | if (add_aux_fields && opd_ent_size == 16) | |
| 7953 | { | |
| 7954 | memset (wptr, '\0', 8); | |
| 7955 | wptr += 8; | |
| 7956 | } | |
| 7957 | ||
| 50bc7936 | 7958 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
7959 | new opd entries. */ |
| 7960 | for ( ; rel != next_rel; ++rel) | |
| 7961 | { | |
| 7962 | rel->r_offset += adjust; | |
| 7963 | if (write_rel != rel) | |
| 7964 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 7965 | ++write_rel; | |
| 7966 | } | |
| 1e2f5b6e | 7967 | } |
| 51aecdc5 AM |
7968 | |
| 7969 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
7970 | } |
| 7971 | ||
| 3f764659 | 7972 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 7973 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
7974 | if (add_aux_fields) |
| 7975 | { | |
| 7976 | free (sec->contents); | |
| 7977 | sec->contents = new_contents; | |
| 7978 | } | |
| 7979 | ||
| 05bf9422 | 7980 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 7981 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
7982 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 7983 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 7984 | some_edited = TRUE; |
| 1e2f5b6e | 7985 | } |
| 6cdc0ccc | 7986 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 7987 | free (relstart); |
| 6cdc0ccc | 7988 | |
| 411e1bfb AM |
7989 | if (local_syms != NULL |
| 7990 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7991 | { | |
| 7992 | if (!info->keep_memory) | |
| 7993 | free (local_syms); | |
| 7994 | else | |
| 7995 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 7996 | } | |
| 7997 | } | |
| 7998 | ||
| 754021d0 AM |
7999 | if (some_edited) |
| 8000 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8001 | ||
| 3f764659 JJ |
8002 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8003 | long, add a 8 byte padding after it. */ | |
| 8004 | if (need_pad != NULL && !info->relocatable) | |
| 8005 | { | |
| 8006 | bfd_byte *p; | |
| 8007 | ||
| 8008 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8009 | { | |
| 8010 | BFD_ASSERT (need_pad->size > 0); | |
| 8011 | ||
| 8012 | p = bfd_malloc (need_pad->size + 8); | |
| 8013 | if (p == NULL) | |
| 8014 | return FALSE; | |
| 699733f6 | 8015 | |
| 3f764659 JJ |
8016 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8017 | p, 0, need_pad->size)) | |
| 8018 | return FALSE; | |
| 8019 | ||
| 8020 | need_pad->contents = p; | |
| 8021 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8022 | } | |
| 8023 | else | |
| 8024 | { | |
| 8025 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8026 | if (p == NULL) | |
| 8027 | return FALSE; | |
| 8028 | ||
| 8029 | need_pad->contents = p; | |
| 8030 | } | |
| 8031 | ||
| 8032 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8033 | need_pad->size += 8; | |
| 8034 | } | |
| 8035 | ||
| 411e1bfb AM |
8036 | return TRUE; |
| 8037 | } | |
| 8038 | ||
| e1918d23 | 8039 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8040 | |
| e1918d23 | 8041 | asection * |
| e7d1c40c | 8042 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8043 | { |
| 411e1bfb AM |
8044 | struct ppc_link_hash_table *htab; |
| 8045 | ||
| 411e1bfb | 8046 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8047 | if (htab == NULL) |
| 8048 | return NULL; | |
| 8049 | ||
| ee67d69a AM |
8050 | if (abiversion (info->output_bfd) == 1) |
| 8051 | htab->opd_abi = 1; | |
| 8052 | ||
| e7d1c40c | 8053 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8054 | htab->do_multi_toc = 0; |
| 8055 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8056 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8057 | |
| 3a71aa26 AM |
8058 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8059 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8060 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8061 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8062 | if (htab->tls_get_addr != NULL) | |
| 8063 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8064 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8065 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8066 | FALSE, FALSE, TRUE)); | |
| e7d1c40c | 8067 | if (!htab->params->no_tls_get_addr_opt) |
| a7f2871e AM |
8068 | { |
| 8069 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8070 | ||
| 8071 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8072 | FALSE, FALSE, TRUE); | |
| 8073 | if (opt != NULL) | |
| 8074 | func_desc_adjust (opt, info); | |
| 8075 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8076 | FALSE, FALSE, TRUE); | |
| 8077 | if (opt_fd != NULL | |
| 8078 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8079 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8080 | { | |
| 8081 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8082 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8083 | be calling __tls_get_addr via a plt call stub, then | |
| 8084 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8085 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8086 | if (htab->elf.dynamic_sections_created | |
| 8087 | && tga_fd != NULL | |
| 8088 | && (tga_fd->type == STT_FUNC | |
| 8089 | || tga_fd->needs_plt) | |
| 8090 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8091 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8092 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8093 | { | |
| 8094 | struct plt_entry *ent; | |
| 8095 | ||
| 8096 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8097 | if (ent->plt.refcount > 0) | |
| 8098 | break; | |
| 8099 | if (ent != NULL) | |
| 8100 | { | |
| 8101 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8102 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8103 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 8104 | if (opt_fd->dynindx != -1) | |
| 8105 | { | |
| 8106 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8107 | opt_fd->dynindx = -1; | |
| 8108 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8109 | opt_fd->dynstr_index); | |
| 8110 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8111 | return NULL; |
| a7f2871e AM |
8112 | } |
| 8113 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8114 | tga = &htab->tls_get_addr->elf; | |
| 8115 | if (opt != NULL && tga != NULL) | |
| 8116 | { | |
| 8117 | tga->root.type = bfd_link_hash_indirect; | |
| 8118 | tga->root.u.i.link = &opt->root; | |
| 8119 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 8120 | _bfd_elf_link_hash_hide_symbol (info, opt, | |
| 8121 | tga->forced_local); | |
| 8122 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8123 | } | |
| 8124 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8125 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8126 | if (htab->tls_get_addr != NULL) | |
| 8127 | { | |
| 8128 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8129 | htab->tls_get_addr->is_func = 1; | |
| 8130 | } | |
| 8131 | } | |
| 8132 | } | |
| 8133 | } | |
| 8134 | else | |
| e7d1c40c | 8135 | htab->params->no_tls_get_addr_opt = TRUE; |
| a7f2871e | 8136 | } |
| 33c0ec9d | 8137 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8138 | } |
| 8387904d | 8139 | |
| 3a71aa26 AM |
8140 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8141 | HASH1 or HASH2. */ | |
| 8387904d | 8142 | |
| 3a71aa26 AM |
8143 | static bfd_boolean |
| 8144 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8145 | const Elf_Internal_Rela *rel, | |
| 8146 | const struct ppc_link_hash_entry *hash1, | |
| 8147 | const struct ppc_link_hash_entry *hash2) | |
| 8148 | { | |
| 8149 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8150 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8151 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8152 | ||
| e054468f | 8153 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8154 | { |
| 3a71aa26 AM |
8155 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8156 | struct elf_link_hash_entry *h; | |
| 8387904d | 8157 | |
| 3a71aa26 | 8158 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8159 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8160 | if (h == &hash1->elf || h == &hash2->elf) |
| 8161 | return TRUE; | |
| a48ebf4d | 8162 | } |
| 3a71aa26 | 8163 | return FALSE; |
| 951fd09b | 8164 | } |
| 411e1bfb | 8165 | |
| 951fd09b AM |
8166 | /* Run through all the TLS relocs looking for optimization |
| 8167 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8168 | a preliminary section layout so that we know the TLS segment | |
| 8169 | offsets. We can't optimize earlier because some optimizations need | |
| 8170 | to know the tp offset, and we need to optimize before allocating | |
| 8171 | dynamic relocations. */ | |
| 8172 | ||
| 8173 | bfd_boolean | |
| 33c0ec9d | 8174 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8175 | { |
| 8176 | bfd *ibfd; | |
| 8177 | asection *sec; | |
| 8178 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8179 | unsigned char *toc_ref; |
| 102890f0 | 8180 | int pass; |
| 951fd09b | 8181 | |
| 1d483afe | 8182 | if (info->relocatable || !info->executable) |
| 411e1bfb AM |
8183 | return TRUE; |
| 8184 | ||
| 951fd09b | 8185 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8186 | if (htab == NULL) |
| 8187 | return FALSE; | |
| 8188 | ||
| 663a1470 AM |
8189 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8190 | entries involved with tls relocs, and check that tls relocs | |
| 8191 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8192 | such a call. If they are not, we can't do any tls optimization. | |
| 8193 | On the second pass twiddle tls_mask flags to notify | |
| 8194 | relocate_section that optimization can be done, and adjust got | |
| 8195 | and plt refcounts. */ | |
| 8196 | toc_ref = NULL; | |
| 8197 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8198 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8199 | { |
| 8200 | Elf_Internal_Sym *locsyms = NULL; | |
| 8201 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8202 | ||
| 102890f0 AM |
8203 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8204 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8205 | { | |
| 8206 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8207 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8208 | |
| 102890f0 AM |
8209 | /* Read the relocations. */ |
| 8210 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8211 | info->keep_memory); | |
| 8212 | if (relstart == NULL) | |
| 2915c55b JK |
8213 | { |
| 8214 | free (toc_ref); | |
| 8215 | return FALSE; | |
| 8216 | } | |
| 411e1bfb | 8217 | |
| 102890f0 AM |
8218 | relend = relstart + sec->reloc_count; |
| 8219 | for (rel = relstart; rel < relend; rel++) | |
| 8220 | { | |
| 8221 | enum elf_ppc64_reloc_type r_type; | |
| 8222 | unsigned long r_symndx; | |
| 8223 | struct elf_link_hash_entry *h; | |
| 8224 | Elf_Internal_Sym *sym; | |
| 8225 | asection *sym_sec; | |
| f961d9dd AM |
8226 | unsigned char *tls_mask; |
| 8227 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8228 | bfd_vma value; |
| 8229 | bfd_boolean ok_tprel, is_local; | |
| 8230 | long toc_ref_index = 0; | |
| 8231 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8232 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8233 | |
| 102890f0 AM |
8234 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8235 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8236 | r_symndx, ibfd)) | |
| 8237 | { | |
| 8238 | err_free_rel: | |
| 8239 | if (elf_section_data (sec)->relocs != relstart) | |
| 8240 | free (relstart); | |
| 8241 | if (toc_ref != NULL) | |
| 8242 | free (toc_ref); | |
| 8243 | if (locsyms != NULL | |
| 0ffa91dd | 8244 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8245 | != (unsigned char *) locsyms)) |
| 8246 | free (locsyms); | |
| 663a1470 | 8247 | return ret; |
| 102890f0 | 8248 | } |
| 411e1bfb | 8249 | |
| 102890f0 AM |
8250 | if (h != NULL) |
| 8251 | { | |
| 766bc656 AM |
8252 | if (h->root.type == bfd_link_hash_defined |
| 8253 | || h->root.type == bfd_link_hash_defweak) | |
| 8254 | value = h->root.u.def.value; | |
| 8255 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8256 | value = 0; | |
| 8257 | else | |
| 663a1470 AM |
8258 | { |
| 8259 | found_tls_get_addr_arg = 0; | |
| 8260 | continue; | |
| 8261 | } | |
| 102890f0 AM |
8262 | } |
| 8263 | else | |
| 8264 | /* Symbols referenced by TLS relocs must be of type | |
| 8265 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8266 | value = sym->st_value; | |
| 8267 | ||
| 8268 | ok_tprel = FALSE; | |
| 8269 | is_local = FALSE; | |
| 8270 | if (h == NULL | |
| 8271 | || !h->def_dynamic) | |
| 8272 | { | |
| 8273 | is_local = TRUE; | |
| 766bc656 AM |
8274 | if (h != NULL |
| 8275 | && h->root.type == bfd_link_hash_undefweak) | |
| 8276 | ok_tprel = TRUE; | |
| 8277 | else | |
| 8278 | { | |
| 8279 | value += sym_sec->output_offset; | |
| 8280 | value += sym_sec->output_section->vma; | |
| 8281 | value -= htab->elf.tls_sec->vma; | |
| 8282 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8283 | < (bfd_vma) 1 << 32); | |
| 8284 | } | |
| 102890f0 | 8285 | } |
| 951fd09b | 8286 | |
| 102890f0 | 8287 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8288 | /* If this section has old-style __tls_get_addr calls |
| 8289 | without marker relocs, then check that each | |
| 8290 | __tls_get_addr call reloc is preceded by a reloc | |
| 8291 | that conceivably belongs to the __tls_get_addr arg | |
| 8292 | setup insn. If we don't find matching arg setup | |
| 8293 | relocs, don't do any tls optimization. */ | |
| 8294 | if (pass == 0 | |
| 8295 | && sec->has_tls_get_addr_call | |
| 8296 | && h != NULL | |
| 8297 | && (h == &htab->tls_get_addr->elf | |
| 8298 | || h == &htab->tls_get_addr_fd->elf) | |
| 8299 | && !found_tls_get_addr_arg | |
| 8300 | && is_branch_reloc (r_type)) | |
| 8301 | { | |
| 25f53a85 | 8302 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8303 | "TLS optimization disabled\n"), |
| 8304 | ibfd, sec, rel->r_offset); | |
| 8305 | ret = TRUE; | |
| 8306 | goto err_free_rel; | |
| 8307 | } | |
| 8308 | ||
| 8309 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8310 | switch (r_type) |
| 8311 | { | |
| 8312 | case R_PPC64_GOT_TLSLD16: | |
| 8313 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8314 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8315 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8316 | /* Fall thru */ |
| 8317 | ||
| 8318 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8319 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8320 | /* These relocs should never be against a symbol | |
| 8321 | defined in a shared lib. Leave them alone if | |
| 8322 | that turns out to be the case. */ | |
| 8323 | if (!is_local) | |
| 8324 | continue; | |
| 411e1bfb | 8325 | |
| 102890f0 | 8326 | /* LD -> LE */ |
| 411e1bfb | 8327 | tls_set = 0; |
| 102890f0 AM |
8328 | tls_clear = TLS_LD; |
| 8329 | tls_type = TLS_TLS | TLS_LD; | |
| 8330 | break; | |
| 411e1bfb | 8331 | |
| 102890f0 AM |
8332 | case R_PPC64_GOT_TLSGD16: |
| 8333 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8334 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8335 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8336 | /* Fall thru */ |
| 8337 | ||
| 8338 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8339 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8340 | if (ok_tprel) | |
| 8341 | /* GD -> LE */ | |
| 411e1bfb | 8342 | tls_set = 0; |
| 102890f0 AM |
8343 | else |
| 8344 | /* GD -> IE */ | |
| 8345 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8346 | tls_clear = TLS_GD; | |
| 8347 | tls_type = TLS_TLS | TLS_GD; | |
| 8348 | break; | |
| 8349 | ||
| 8350 | case R_PPC64_GOT_TPREL16_DS: | |
| 8351 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8352 | case R_PPC64_GOT_TPREL16_HI: | |
| 8353 | case R_PPC64_GOT_TPREL16_HA: | |
| 8354 | if (ok_tprel) | |
| 8355 | { | |
| 8356 | /* IE -> LE */ | |
| 8357 | tls_set = 0; | |
| 8358 | tls_clear = TLS_TPREL; | |
| 8359 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8360 | break; | |
| 8361 | } | |
| 411e1bfb AM |
8362 | continue; |
| 8363 | ||
| 727fc41e AM |
8364 | case R_PPC64_TLSGD: |
| 8365 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8366 | found_tls_get_addr_arg = 1; |
| 8367 | /* Fall thru */ | |
| 8368 | ||
| 8369 | case R_PPC64_TLS: | |
| 8370 | case R_PPC64_TOC16: | |
| 8371 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8372 | if (sym_sec == NULL || sym_sec != toc) |
| 8373 | continue; | |
| 8374 | ||
| 8375 | /* Mark this toc entry as referenced by a TLS | |
| 8376 | code sequence. We can do that now in the | |
| 8377 | case of R_PPC64_TLS, and after checking for | |
| 8378 | tls_get_addr for the TOC16 relocs. */ | |
| 8379 | if (toc_ref == NULL) | |
| 663a1470 AM |
8380 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8381 | if (toc_ref == NULL) | |
| 8382 | goto err_free_rel; | |
| 8383 | ||
| 102890f0 AM |
8384 | if (h != NULL) |
| 8385 | value = h->root.u.def.value; | |
| 8386 | else | |
| 8387 | value = sym->st_value; | |
| 8388 | value += rel->r_addend; | |
| 73242275 AM |
8389 | if (value % 8 != 0) |
| 8390 | continue; | |
| 8391 | BFD_ASSERT (value < toc->size | |
| 8392 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8393 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8394 | if (r_type == R_PPC64_TLS |
| 8395 | || r_type == R_PPC64_TLSGD | |
| 8396 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8397 | { |
| 8398 | toc_ref[toc_ref_index] = 1; | |
| 8399 | continue; | |
| 8400 | } | |
| 8401 | ||
| 8402 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8403 | continue; | |
| 8404 | ||
| 8405 | tls_set = 0; | |
| 8406 | tls_clear = 0; | |
| 8407 | expecting_tls_get_addr = 2; | |
| 8408 | break; | |
| 8409 | ||
| 8410 | case R_PPC64_TPREL64: | |
| 8411 | if (pass == 0 | |
| 8412 | || sec != toc | |
| 8413 | || toc_ref == NULL | |
| 663a1470 | 8414 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8415 | continue; |
| 8416 | if (ok_tprel) | |
| 8417 | { | |
| 8418 | /* IE -> LE */ | |
| 8419 | tls_set = TLS_EXPLICIT; | |
| 8420 | tls_clear = TLS_TPREL; | |
| 8421 | break; | |
| 8422 | } | |
| 8423 | continue; | |
| 8424 | ||
| 8425 | case R_PPC64_DTPMOD64: | |
| 8426 | if (pass == 0 | |
| 8427 | || sec != toc | |
| 8428 | || toc_ref == NULL | |
| 663a1470 | 8429 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8430 | continue; |
| 8431 | if (rel + 1 < relend | |
| 8432 | && (rel[1].r_info | |
| 8433 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8434 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8435 | { | |
| 8436 | if (ok_tprel) | |
| 8437 | /* GD -> LE */ | |
| 8438 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8439 | else | |
| 8440 | /* GD -> IE */ | |
| 8441 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8442 | tls_clear = TLS_GD; | |
| 8443 | } | |
| 8444 | else | |
| 8445 | { | |
| 8446 | if (!is_local) | |
| 8447 | continue; | |
| 8448 | ||
| 8449 | /* LD -> LE */ | |
| 8450 | tls_set = TLS_EXPLICIT; | |
| 8451 | tls_clear = TLS_LD; | |
| 8452 | } | |
| 8453 | break; | |
| 8454 | ||
| 8455 | default: | |
| 8456 | continue; | |
| 8457 | } | |
| 8458 | ||
| 8459 | if (pass == 0) | |
| 8460 | { | |
| 727fc41e AM |
8461 | if (!expecting_tls_get_addr |
| 8462 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8463 | continue; |
| 8464 | ||
| 3a71aa26 AM |
8465 | if (rel + 1 < relend |
| 8466 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8467 | htab->tls_get_addr, | |
| 8468 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8469 | { |
| 3a71aa26 | 8470 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8471 | { |
| 3a71aa26 | 8472 | /* Check for toc tls entries. */ |
| f961d9dd | 8473 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8474 | int retval; |
| 8475 | ||
| 8476 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8477 | &locsyms, | |
| 8478 | rel, ibfd); | |
| 8479 | if (retval == 0) | |
| 8480 | goto err_free_rel; | |
| 663a1470 AM |
8481 | if (toc_tls != NULL) |
| 8482 | { | |
| 8483 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8484 | found_tls_get_addr_arg = 1; | |
| 8485 | if (retval > 1) | |
| 8486 | toc_ref[toc_ref_index] = 1; | |
| 8487 | } | |
| 102890f0 | 8488 | } |
| 3a71aa26 | 8489 | continue; |
| 102890f0 AM |
8490 | } |
| 8491 | ||
| 8492 | if (expecting_tls_get_addr != 1) | |
| 8493 | continue; | |
| 8494 | ||
| 8495 | /* Uh oh, we didn't find the expected call. We | |
| 8496 | could just mark this symbol to exclude it | |
| 8497 | from tls optimization but it's safer to skip | |
| 663a1470 | 8498 | the entire optimization. */ |
| 25f53a85 | 8499 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8500 | "TLS optimization disabled\n"), |
| 8501 | ibfd, sec, rel->r_offset); | |
| 8502 | ret = TRUE; | |
| 8503 | goto err_free_rel; | |
| 102890f0 AM |
8504 | } |
| 8505 | ||
| 85f7a9cb | 8506 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8507 | { |
| 8508 | struct plt_entry *ent; | |
| 8509 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8510 | ent != NULL; | |
| 8511 | ent = ent->next) | |
| 8512 | if (ent->addend == 0) | |
| 411e1bfb | 8513 | { |
| 102890f0 | 8514 | if (ent->plt.refcount > 0) |
| 30038c59 | 8515 | { |
| 102890f0 AM |
8516 | ent->plt.refcount -= 1; |
| 8517 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8518 | } |
| 102890f0 | 8519 | break; |
| 411e1bfb | 8520 | } |
| 102890f0 | 8521 | } |
| 411e1bfb | 8522 | |
| 85f7a9cb | 8523 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8524 | { |
| 8525 | struct plt_entry *ent; | |
| 8526 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8527 | ent != NULL; | |
| 8528 | ent = ent->next) | |
| 8529 | if (ent->addend == 0) | |
| 411e1bfb | 8530 | { |
| 102890f0 AM |
8531 | if (ent->plt.refcount > 0) |
| 8532 | ent->plt.refcount -= 1; | |
| 8533 | break; | |
| 411e1bfb | 8534 | } |
| 102890f0 | 8535 | } |
| 411e1bfb | 8536 | |
| 102890f0 | 8537 | if (tls_clear == 0) |
| 30038c59 AM |
8538 | continue; |
| 8539 | ||
| 102890f0 AM |
8540 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8541 | { | |
| 8542 | struct got_entry *ent; | |
| 411e1bfb | 8543 | |
| 102890f0 AM |
8544 | /* Adjust got entry for this reloc. */ |
| 8545 | if (h != NULL) | |
| 8546 | ent = h->got.glist; | |
| 8547 | else | |
| 8548 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8549 | |
| 102890f0 AM |
8550 | for (; ent != NULL; ent = ent->next) |
| 8551 | if (ent->addend == rel->r_addend | |
| 8552 | && ent->owner == ibfd | |
| 8553 | && ent->tls_type == tls_type) | |
| 8554 | break; | |
| 8555 | if (ent == NULL) | |
| 8556 | abort (); | |
| 411e1bfb | 8557 | |
| 102890f0 AM |
8558 | if (tls_set == 0) |
| 8559 | { | |
| 8560 | /* We managed to get rid of a got entry. */ | |
| 8561 | if (ent->got.refcount > 0) | |
| 8562 | ent->got.refcount -= 1; | |
| 8563 | } | |
| 8564 | } | |
| 8565 | else | |
| 8566 | { | |
| 8567 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8568 | we'll lose one or two dyn relocs. */ | |
| 8569 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8570 | NULL, h, sym)) |
| 102890f0 | 8571 | return FALSE; |
| 411e1bfb | 8572 | |
| 102890f0 AM |
8573 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8574 | { | |
| 8575 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8576 | NULL, h, sym)) |
| 102890f0 AM |
8577 | return FALSE; |
| 8578 | } | |
| 8579 | } | |
| 411e1bfb | 8580 | |
| 102890f0 AM |
8581 | *tls_mask |= tls_set; |
| 8582 | *tls_mask &= ~tls_clear; | |
| 8583 | } | |
| 8c1d1bb8 | 8584 | |
| 102890f0 AM |
8585 | if (elf_section_data (sec)->relocs != relstart) |
| 8586 | free (relstart); | |
| 8587 | } | |
| 411e1bfb | 8588 | |
| 663a1470 AM |
8589 | if (locsyms != NULL |
| 8590 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8591 | { | |
| 8592 | if (!info->keep_memory) | |
| 8593 | free (locsyms); | |
| 8594 | else | |
| 8595 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8596 | } | |
| 8597 | } | |
| 411e1bfb | 8598 | |
| 663a1470 AM |
8599 | if (toc_ref != NULL) |
| 8600 | free (toc_ref); | |
| b34976b6 | 8601 | return TRUE; |
| 1e2f5b6e | 8602 | } |
| b34976b6 | 8603 | |
| c5614fa4 AM |
8604 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8605 | the values of any global symbols in a toc section that has been | |
| 8606 | edited. Globals in toc sections should be a rarity, so this function | |
| 8607 | sets a flag if any are found in toc sections other than the one just | |
| 8608 | edited, so that futher hash table traversals can be avoided. */ | |
| 8609 | ||
| 8610 | struct adjust_toc_info | |
| 8611 | { | |
| 8612 | asection *toc; | |
| 8613 | unsigned long *skip; | |
| 8614 | bfd_boolean global_toc_syms; | |
| 8615 | }; | |
| 8616 | ||
| ba761f19 AM |
8617 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8618 | ||
| c5614fa4 AM |
8619 | static bfd_boolean |
| 8620 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8621 | { | |
| 8622 | struct ppc_link_hash_entry *eh; | |
| 8623 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8624 | unsigned long i; |
| c5614fa4 | 8625 | |
| c5614fa4 AM |
8626 | if (h->root.type != bfd_link_hash_defined |
| 8627 | && h->root.type != bfd_link_hash_defweak) | |
| 8628 | return TRUE; | |
| 8629 | ||
| 8630 | eh = (struct ppc_link_hash_entry *) h; | |
| 8631 | if (eh->adjust_done) | |
| 8632 | return TRUE; | |
| 8633 | ||
| 8634 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8635 | { | |
| 854b41e7 AM |
8636 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8637 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8638 | else |
| 854b41e7 AM |
8639 | i = eh->elf.root.u.def.value >> 3; |
| 8640 | ||
| ba761f19 | 8641 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8642 | { |
| 8643 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8644 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8645 | do | |
| 8646 | ++i; | |
| ba761f19 | 8647 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8648 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8649 | } |
| 854b41e7 AM |
8650 | |
| 8651 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8652 | eh->adjust_done = 1; |
| 8653 | } | |
| 8654 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8655 | toc_inf->global_toc_syms = TRUE; | |
| 8656 | ||
| 8657 | return TRUE; | |
| 8658 | } | |
| 8659 | ||
| 560c8763 AM |
8660 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8661 | ||
| 8662 | static bfd_boolean | |
| 8663 | ok_lo_toc_insn (unsigned int insn) | |
| 8664 | { | |
| 8665 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8666 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8667 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8668 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8669 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8670 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8671 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8672 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8673 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8674 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8675 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8676 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8677 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8678 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8679 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8680 | && (insn & 3) != 1) | |
| 8681 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8682 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8683 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8684 | } | |
| 8685 | ||
| c5614fa4 AM |
8686 | /* Examine all relocs referencing .toc sections in order to remove |
| 8687 | unused .toc entries. */ | |
| 8688 | ||
| 8689 | bfd_boolean | |
| 33c0ec9d | 8690 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8691 | { |
| 8692 | bfd *ibfd; | |
| 8693 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8694 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8695 | |
| 67f0cbdb | 8696 | htab->do_toc_opt = 1; |
| c5614fa4 | 8697 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8698 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8699 | { |
| 8700 | asection *toc, *sec; | |
| 8701 | Elf_Internal_Shdr *symtab_hdr; | |
| 8702 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8703 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8704 | unsigned long *skip, *drop; |
| 8705 | unsigned char *used; | |
| 8706 | unsigned char *keep, last, some_unused; | |
| 8707 | ||
| 854b41e7 AM |
8708 | if (!is_ppc64_elf (ibfd)) |
| 8709 | continue; | |
| 8710 | ||
| c5614fa4 AM |
8711 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8712 | if (toc == NULL | |
| 92b7a70f | 8713 | || toc->size == 0 |
| dbaa2011 AM |
8714 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8715 | || discarded_section (toc)) | |
| c5614fa4 AM |
8716 | continue; |
| 8717 | ||
| 425b145b | 8718 | toc_relocs = NULL; |
| c5614fa4 | 8719 | local_syms = NULL; |
| 0ffa91dd | 8720 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8721 | |
| 8722 | /* Look at sections dropped from the final link. */ | |
| 8723 | skip = NULL; | |
| 8724 | relstart = NULL; | |
| 8725 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8726 | { | |
| 8727 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8728 | || !discarded_section (sec) |
| c5614fa4 AM |
8729 | || get_opd_info (sec) |
| 8730 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8731 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8732 | continue; | |
| 8733 | ||
| 8734 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8735 | if (relstart == NULL) | |
| 8736 | goto error_ret; | |
| 8737 | ||
| 8738 | /* Run through the relocs to see which toc entries might be | |
| 8739 | unused. */ | |
| 8740 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8741 | { | |
| 8742 | enum elf_ppc64_reloc_type r_type; | |
| 8743 | unsigned long r_symndx; | |
| 8744 | asection *sym_sec; | |
| 8745 | struct elf_link_hash_entry *h; | |
| 8746 | Elf_Internal_Sym *sym; | |
| 8747 | bfd_vma val; | |
| 8748 | ||
| 8749 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8750 | switch (r_type) | |
| 8751 | { | |
| 8752 | default: | |
| 8753 | continue; | |
| 8754 | ||
| 8755 | case R_PPC64_TOC16: | |
| 8756 | case R_PPC64_TOC16_LO: | |
| 8757 | case R_PPC64_TOC16_HI: | |
| 8758 | case R_PPC64_TOC16_HA: | |
| 8759 | case R_PPC64_TOC16_DS: | |
| 8760 | case R_PPC64_TOC16_LO_DS: | |
| 8761 | break; | |
| 8762 | } | |
| 8763 | ||
| 8764 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8765 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8766 | r_symndx, ibfd)) | |
| 8767 | goto error_ret; | |
| 8768 | ||
| 8769 | if (sym_sec != toc) | |
| 8770 | continue; | |
| 8771 | ||
| 8772 | if (h != NULL) | |
| 8773 | val = h->root.u.def.value; | |
| 8774 | else | |
| 8775 | val = sym->st_value; | |
| 8776 | val += rel->r_addend; | |
| 8777 | ||
| 8778 | if (val >= toc->size) | |
| 8779 | continue; | |
| 8780 | ||
| 8781 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8782 | If not, don't mark as unused. */ | |
| 8783 | if (val & 7) | |
| 8784 | continue; | |
| 8785 | ||
| 8786 | if (skip == NULL) | |
| 8787 | { | |
| 854b41e7 | 8788 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8789 | if (skip == NULL) |
| 8790 | goto error_ret; | |
| 8791 | } | |
| 8792 | ||
| ba761f19 | 8793 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8794 | } |
| 8795 | ||
| 8796 | if (elf_section_data (sec)->relocs != relstart) | |
| 8797 | free (relstart); | |
| 8798 | } | |
| 8799 | ||
| ba761f19 AM |
8800 | /* For largetoc loads of address constants, we can convert |
| 8801 | . addis rx,2,addr@got@ha | |
| 8802 | . ld ry,addr@got@l(rx) | |
| 8803 | to | |
| 8804 | . addis rx,2,addr@toc@ha | |
| 8805 | . addi ry,rx,addr@toc@l | |
| 8806 | when addr is within 2G of the toc pointer. This then means | |
| 8807 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8808 | |
| ba761f19 AM |
8809 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8810 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8811 | && toc->reloc_count != 0) | |
| 8812 | { | |
| 8813 | /* Read toc relocs. */ | |
| 425b145b AM |
8814 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8815 | info->keep_memory); | |
| 8816 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8817 | goto error_ret; |
| 8818 | ||
| 425b145b | 8819 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8820 | { |
| 8821 | enum elf_ppc64_reloc_type r_type; | |
| 8822 | unsigned long r_symndx; | |
| 8823 | asection *sym_sec; | |
| 8824 | struct elf_link_hash_entry *h; | |
| 8825 | Elf_Internal_Sym *sym; | |
| 8826 | bfd_vma val, addr; | |
| 8827 | ||
| 8828 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8829 | if (r_type != R_PPC64_ADDR64) | |
| 8830 | continue; | |
| 8831 | ||
| 8832 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8833 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8834 | r_symndx, ibfd)) | |
| 8835 | goto error_ret; | |
| 8836 | ||
| 425b145b | 8837 | if (sym_sec == NULL |
| dbaa2011 | 8838 | || discarded_section (sym_sec)) |
| 425b145b AM |
8839 | continue; |
| 8840 | ||
| afe397ea | 8841 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
8842 | continue; |
| 8843 | ||
| 8844 | if (h != NULL) | |
| bddc25c9 AM |
8845 | { |
| 8846 | if (h->type == STT_GNU_IFUNC) | |
| 8847 | continue; | |
| 8848 | val = h->root.u.def.value; | |
| 8849 | } | |
| ba761f19 | 8850 | else |
| bddc25c9 AM |
8851 | { |
| 8852 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8853 | continue; | |
| 8854 | val = sym->st_value; | |
| 8855 | } | |
| ba761f19 AM |
8856 | val += rel->r_addend; |
| 8857 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8858 | ||
| 8859 | /* We don't yet know the exact toc pointer value, but we | |
| 8860 | know it will be somewhere in the toc section. Don't | |
| 8861 | optimize if the difference from any possible toc | |
| 8862 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8863 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8864 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8865 | continue; | |
| 8866 | ||
| 8867 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 8868 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8869 | continue; | |
| 8870 | ||
| 8871 | if (skip == NULL) | |
| 8872 | { | |
| 8873 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 8874 | if (skip == NULL) | |
| 8875 | goto error_ret; | |
| 8876 | } | |
| 8877 | ||
| 8878 | skip[rel->r_offset >> 3] | |
| 425b145b | 8879 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 8880 | } |
| ba761f19 AM |
8881 | } |
| 8882 | ||
| c5614fa4 AM |
8883 | if (skip == NULL) |
| 8884 | continue; | |
| 8885 | ||
| 8886 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 8887 | if (used == NULL) | |
| 8888 | { | |
| 8889 | error_ret: | |
| 8890 | if (local_syms != NULL | |
| 8891 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8892 | free (local_syms); | |
| 8893 | if (sec != NULL | |
| 8894 | && relstart != NULL | |
| 8895 | && elf_section_data (sec)->relocs != relstart) | |
| 8896 | free (relstart); | |
| 425b145b AM |
8897 | if (toc_relocs != NULL |
| 8898 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 8899 | free (toc_relocs); | |
| c5614fa4 AM |
8900 | if (skip != NULL) |
| 8901 | free (skip); | |
| 8902 | return FALSE; | |
| 8903 | } | |
| 8904 | ||
| 30038c59 AM |
8905 | /* Now check all kept sections that might reference the toc. |
| 8906 | Check the toc itself last. */ | |
| 8907 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 8908 | : ibfd->sections); | |
| c5614fa4 | 8909 | sec != NULL; |
| c5614fa4 | 8910 | sec = (sec == toc ? NULL |
| c5614fa4 | 8911 | : sec->next == NULL ? toc |
| 30038c59 | 8912 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
8913 | : sec->next)) |
| 8914 | { | |
| 8915 | int repeat; | |
| 8916 | ||
| 8917 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8918 | || discarded_section (sec) |
| c5614fa4 AM |
8919 | || get_opd_info (sec) |
| 8920 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8921 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8922 | continue; | |
| 8923 | ||
| 854b41e7 AM |
8924 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 8925 | info->keep_memory); | |
| c5614fa4 | 8926 | if (relstart == NULL) |
| 2915c55b JK |
8927 | { |
| 8928 | free (used); | |
| 8929 | goto error_ret; | |
| 8930 | } | |
| c5614fa4 AM |
8931 | |
| 8932 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 8933 | do |
| d4f1ee75 AM |
8934 | { |
| 8935 | repeat = 0; | |
| 8936 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8937 | { | |
| 8938 | enum elf_ppc64_reloc_type r_type; | |
| 8939 | unsigned long r_symndx; | |
| 8940 | asection *sym_sec; | |
| 8941 | struct elf_link_hash_entry *h; | |
| 8942 | Elf_Internal_Sym *sym; | |
| 8943 | bfd_vma val; | |
| 8944 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 8945 | |
| d4f1ee75 AM |
8946 | r_type = ELF64_R_TYPE (rel->r_info); |
| 8947 | switch (r_type) | |
| 8948 | { | |
| 8949 | default: | |
| 8950 | insn_check = no_check; | |
| 8951 | break; | |
| 98528052 | 8952 | |
| d4f1ee75 AM |
8953 | case R_PPC64_GOT_TLSLD16_HA: |
| 8954 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8955 | case R_PPC64_GOT_TPREL16_HA: | |
| 8956 | case R_PPC64_GOT_DTPREL16_HA: | |
| 8957 | case R_PPC64_GOT16_HA: | |
| 8958 | case R_PPC64_TOC16_HA: | |
| 8959 | insn_check = check_ha; | |
| 8960 | break; | |
| 98528052 | 8961 | |
| d4f1ee75 AM |
8962 | case R_PPC64_GOT_TLSLD16_LO: |
| 8963 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8964 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8965 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 8966 | case R_PPC64_GOT16_LO: | |
| 8967 | case R_PPC64_GOT16_LO_DS: | |
| 8968 | case R_PPC64_TOC16_LO: | |
| 8969 | case R_PPC64_TOC16_LO_DS: | |
| 8970 | insn_check = check_lo; | |
| 8971 | break; | |
| 8972 | } | |
| 560c8763 | 8973 | |
| d4f1ee75 AM |
8974 | if (insn_check != no_check) |
| 8975 | { | |
| 8976 | bfd_vma off = rel->r_offset & ~3; | |
| 8977 | unsigned char buf[4]; | |
| 8978 | unsigned int insn; | |
| c5614fa4 | 8979 | |
| d4f1ee75 AM |
8980 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 8981 | { | |
| 8982 | free (used); | |
| 8983 | goto error_ret; | |
| 8984 | } | |
| 8985 | insn = bfd_get_32 (ibfd, buf); | |
| 8986 | if (insn_check == check_lo | |
| 8987 | ? !ok_lo_toc_insn (insn) | |
| 8988 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 8989 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 8990 | { | |
| 8991 | char str[12]; | |
| 8992 | ||
| 8993 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 8994 | sprintf (str, "%#08x", insn); | |
| 8995 | info->callbacks->einfo | |
| 8996 | (_("%P: %H: toc optimization is not supported for" | |
| 8997 | " %s instruction.\n"), | |
| 8998 | ibfd, sec, rel->r_offset & ~3, str); | |
| 8999 | } | |
| 9000 | } | |
| c5614fa4 | 9001 | |
| d4f1ee75 AM |
9002 | switch (r_type) |
| 9003 | { | |
| 9004 | case R_PPC64_TOC16: | |
| 9005 | case R_PPC64_TOC16_LO: | |
| 9006 | case R_PPC64_TOC16_HI: | |
| 9007 | case R_PPC64_TOC16_HA: | |
| 9008 | case R_PPC64_TOC16_DS: | |
| 9009 | case R_PPC64_TOC16_LO_DS: | |
| 9010 | /* In case we're taking addresses of toc entries. */ | |
| 9011 | case R_PPC64_ADDR64: | |
| 9012 | break; | |
| c5614fa4 | 9013 | |
| d4f1ee75 AM |
9014 | default: |
| 9015 | continue; | |
| 9016 | } | |
| c5614fa4 | 9017 | |
| d4f1ee75 AM |
9018 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9019 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9020 | r_symndx, ibfd)) | |
| 9021 | { | |
| 9022 | free (used); | |
| 9023 | goto error_ret; | |
| 9024 | } | |
| c5614fa4 | 9025 | |
| d4f1ee75 AM |
9026 | if (sym_sec != toc) |
| 9027 | continue; | |
| c5614fa4 | 9028 | |
| d4f1ee75 AM |
9029 | if (h != NULL) |
| 9030 | val = h->root.u.def.value; | |
| 9031 | else | |
| 9032 | val = sym->st_value; | |
| 9033 | val += rel->r_addend; | |
| ba761f19 | 9034 | |
| d4f1ee75 AM |
9035 | if (val >= toc->size) |
| 9036 | continue; | |
| ba761f19 | 9037 | |
| d4f1ee75 AM |
9038 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9039 | { | |
| 9040 | bfd_vma off; | |
| 9041 | unsigned char opc; | |
| 9042 | ||
| 9043 | switch (r_type) | |
| 9044 | { | |
| 9045 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9046 | break; |
| ba761f19 | 9047 | |
| d4f1ee75 AM |
9048 | case R_PPC64_TOC16_LO_DS: |
| 9049 | off = rel->r_offset; | |
| 9050 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9051 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9052 | off, 1)) | |
| 9053 | { | |
| 9054 | free (used); | |
| 9055 | goto error_ret; | |
| 9056 | } | |
| 9057 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9058 | break; | |
| 9059 | /* Fall thru */ | |
| ba761f19 | 9060 | |
| d4f1ee75 AM |
9061 | default: |
| 9062 | /* Wrong sort of reloc, or not a ld. We may | |
| 9063 | as well clear ref_from_discarded too. */ | |
| 9064 | skip[val >> 3] = 0; | |
| 9065 | } | |
| 9066 | } | |
| 9067 | ||
| 9068 | if (sec != toc) | |
| 9069 | used[val >> 3] = 1; | |
| 9070 | /* For the toc section, we only mark as used if this | |
| 9071 | entry itself isn't unused. */ | |
| 9072 | else if ((used[rel->r_offset >> 3] | |
| 9073 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9074 | && !used[val >> 3]) | |
| 9075 | { | |
| 9076 | /* Do all the relocs again, to catch reference | |
| 9077 | chains. */ | |
| 9078 | repeat = 1; | |
| 9079 | used[val >> 3] = 1; | |
| 9080 | } | |
| 9081 | } | |
| 9082 | } | |
| c5614fa4 | 9083 | while (repeat); |
| 854b41e7 AM |
9084 | |
| 9085 | if (elf_section_data (sec)->relocs != relstart) | |
| 9086 | free (relstart); | |
| c5614fa4 AM |
9087 | } |
| 9088 | ||
| 9089 | /* Merge the used and skip arrays. Assume that TOC | |
| 9090 | doublewords not appearing as either used or unused belong | |
| 9091 | to to an entry more than one doubleword in size. */ | |
| 9092 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9093 | drop < skip + (toc->size + 7) / 8; | |
| 9094 | ++drop, ++keep) | |
| 9095 | { | |
| 9096 | if (*keep) | |
| 9097 | { | |
| ba761f19 AM |
9098 | *drop &= ~ref_from_discarded; |
| 9099 | if ((*drop & can_optimize) != 0) | |
| 9100 | some_unused = 1; | |
| c5614fa4 AM |
9101 | last = 0; |
| 9102 | } | |
| b140b010 | 9103 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9104 | { |
| 9105 | some_unused = 1; | |
| ba761f19 | 9106 | last = ref_from_discarded; |
| c5614fa4 AM |
9107 | } |
| 9108 | else | |
| 9109 | *drop = last; | |
| 9110 | } | |
| 9111 | ||
| 9112 | free (used); | |
| 9113 | ||
| 9114 | if (some_unused) | |
| 9115 | { | |
| 9116 | bfd_byte *contents, *src; | |
| 9117 | unsigned long off; | |
| d62b3684 | 9118 | Elf_Internal_Sym *sym; |
| ba761f19 | 9119 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9120 | |
| 9121 | /* Shuffle the toc contents, and at the same time convert the | |
| 9122 | skip array from booleans into offsets. */ | |
| 9123 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9124 | goto error_ret; | |
| 9125 | ||
| 9126 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9127 | ||
| 9128 | for (src = contents, off = 0, drop = skip; | |
| 9129 | src < contents + toc->size; | |
| 9130 | src += 8, ++drop) | |
| 9131 | { | |
| ba761f19 AM |
9132 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9133 | off += 8; | |
| c5614fa4 AM |
9134 | else if (off != 0) |
| 9135 | { | |
| 9136 | *drop = off; | |
| 9137 | memcpy (src - off, src, 8); | |
| 9138 | } | |
| 9139 | } | |
| 854b41e7 | 9140 | *drop = off; |
| c5614fa4 AM |
9141 | toc->rawsize = toc->size; |
| 9142 | toc->size = src - contents - off; | |
| 9143 | ||
| ba761f19 AM |
9144 | /* Adjust addends for relocs against the toc section sym, |
| 9145 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9146 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9147 | { | |
| 9148 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9149 | || discarded_section (sec)) |
| c5614fa4 AM |
9150 | continue; |
| 9151 | ||
| 9152 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9153 | info->keep_memory); |
| c5614fa4 AM |
9154 | if (relstart == NULL) |
| 9155 | goto error_ret; | |
| 9156 | ||
| 9157 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9158 | { | |
| 9159 | enum elf_ppc64_reloc_type r_type; | |
| 9160 | unsigned long r_symndx; | |
| 9161 | asection *sym_sec; | |
| 9162 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9163 | bfd_vma val; |
| c5614fa4 AM |
9164 | |
| 9165 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9166 | switch (r_type) | |
| 9167 | { | |
| 9168 | default: | |
| 9169 | continue; | |
| 9170 | ||
| 9171 | case R_PPC64_TOC16: | |
| 9172 | case R_PPC64_TOC16_LO: | |
| 9173 | case R_PPC64_TOC16_HI: | |
| 9174 | case R_PPC64_TOC16_HA: | |
| 9175 | case R_PPC64_TOC16_DS: | |
| 9176 | case R_PPC64_TOC16_LO_DS: | |
| 9177 | case R_PPC64_ADDR64: | |
| 9178 | break; | |
| 9179 | } | |
| 9180 | ||
| 9181 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9182 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9183 | r_symndx, ibfd)) | |
| 9184 | goto error_ret; | |
| 9185 | ||
| ba761f19 | 9186 | if (sym_sec != toc) |
| c5614fa4 AM |
9187 | continue; |
| 9188 | ||
| ba761f19 AM |
9189 | if (h != NULL) |
| 9190 | val = h->root.u.def.value; | |
| 9191 | else | |
| 9192 | { | |
| 9193 | val = sym->st_value; | |
| 9194 | if (val != 0) | |
| 9195 | local_toc_syms = TRUE; | |
| 9196 | } | |
| 9197 | ||
| 9198 | val += rel->r_addend; | |
| 854b41e7 AM |
9199 | |
| 9200 | if (val > toc->rawsize) | |
| 9201 | val = toc->rawsize; | |
| ba761f19 AM |
9202 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9203 | continue; | |
| 9204 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9205 | { | |
| 9206 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9207 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9208 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9209 | ||
| 9210 | switch (r_type) | |
| 9211 | { | |
| 9212 | case R_PPC64_TOC16_HA: | |
| 9213 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9214 | break; | |
| 9215 | ||
| 9216 | case R_PPC64_TOC16_LO_DS: | |
| 9217 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9218 | break; | |
| 9219 | ||
| 9220 | default: | |
| 28942f62 AM |
9221 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9222 | ppc_howto_init (); | |
| b140b010 | 9223 | info->callbacks->einfo |
| bc30df16 | 9224 | (_("%P: %H: %s references " |
| b140b010 AM |
9225 | "optimized away TOC entry\n"), |
| 9226 | ibfd, sec, rel->r_offset, | |
| 9227 | ppc64_elf_howto_table[r_type]->name); | |
| 9228 | bfd_set_error (bfd_error_bad_value); | |
| 9229 | goto error_ret; | |
| ba761f19 AM |
9230 | } |
| 9231 | rel->r_addend = tocrel->r_addend; | |
| 9232 | elf_section_data (sec)->relocs = relstart; | |
| 9233 | continue; | |
| 9234 | } | |
| 9235 | ||
| 9236 | if (h != NULL || sym->st_value != 0) | |
| 9237 | continue; | |
| 854b41e7 AM |
9238 | |
| 9239 | rel->r_addend -= skip[val >> 3]; | |
| 9240 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9241 | } |
| 854b41e7 AM |
9242 | |
| 9243 | if (elf_section_data (sec)->relocs != relstart) | |
| 9244 | free (relstart); | |
| c5614fa4 AM |
9245 | } |
| 9246 | ||
| 9247 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9248 | but handle them anyway. */ | |
| df22d223 AM |
9249 | if (local_syms != NULL) |
| 9250 | for (sym = local_syms; | |
| 9251 | sym < local_syms + symtab_hdr->sh_info; | |
| 9252 | ++sym) | |
| 9253 | if (sym->st_value != 0 | |
| 9254 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9255 | { | |
| 9256 | unsigned long i; | |
| 854b41e7 | 9257 | |
| df22d223 AM |
9258 | if (sym->st_value > toc->rawsize) |
| 9259 | i = toc->rawsize >> 3; | |
| 9260 | else | |
| 9261 | i = sym->st_value >> 3; | |
| 854b41e7 | 9262 | |
| df22d223 AM |
9263 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9264 | { | |
| 9265 | if (local_toc_syms) | |
| 9266 | (*_bfd_error_handler) | |
| 9267 | (_("%s defined on removed toc entry"), | |
| 9268 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9269 | do | |
| 9270 | ++i; | |
| 9271 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9272 | sym->st_value = (bfd_vma) i << 3; | |
| 9273 | } | |
| d62b3684 | 9274 | |
| df22d223 AM |
9275 | sym->st_value -= skip[i]; |
| 9276 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9277 | } | |
| c5614fa4 | 9278 | |
| 854b41e7 | 9279 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9280 | if (toc_inf.global_toc_syms) |
| 9281 | { | |
| 9282 | toc_inf.toc = toc; | |
| 9283 | toc_inf.skip = skip; | |
| 9284 | toc_inf.global_toc_syms = FALSE; | |
| 9285 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9286 | &toc_inf); | |
| 9287 | } | |
| 854b41e7 AM |
9288 | |
| 9289 | if (toc->reloc_count != 0) | |
| 9290 | { | |
| d4730f92 | 9291 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9292 | Elf_Internal_Rela *wrel; |
| 9293 | bfd_size_type sz; | |
| 9294 | ||
| 854b41e7 | 9295 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9296 | if (toc_relocs == NULL) |
| 9297 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9298 | info->keep_memory); | |
| 9299 | if (toc_relocs == NULL) | |
| 9300 | goto error_ret; | |
| 9301 | ||
| 425b145b AM |
9302 | wrel = toc_relocs; |
| 9303 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9304 | if ((skip[rel->r_offset >> 3] |
| 9305 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9306 | { |
| 9307 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9308 | wrel->r_info = rel->r_info; | |
| 9309 | wrel->r_addend = rel->r_addend; | |
| 9310 | ++wrel; | |
| 9311 | } | |
| 9312 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9313 | &local_syms, NULL, NULL)) | |
| 9314 | goto error_ret; | |
| 9315 | ||
| 425b145b AM |
9316 | elf_section_data (toc)->relocs = toc_relocs; |
| 9317 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9318 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9319 | sz = rel_hdr->sh_entsize; | |
| 9320 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9321 | } |
| c5614fa4 | 9322 | } |
| 28be611c AM |
9323 | else if (toc_relocs != NULL |
| 9324 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9325 | free (toc_relocs); |
| c5614fa4 AM |
9326 | |
| 9327 | if (local_syms != NULL | |
| 9328 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9329 | { | |
| 9330 | if (!info->keep_memory) | |
| 9331 | free (local_syms); | |
| 9332 | else | |
| 9333 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9334 | } | |
| 9335 | free (skip); | |
| 9336 | } | |
| 9337 | ||
| 9338 | return TRUE; | |
| 9339 | } | |
| 9340 | ||
| 1bbe0902 AM |
9341 | /* Return true iff input section I references the TOC using |
| 9342 | instructions limited to +/-32k offsets. */ | |
| 9343 | ||
| 9344 | bfd_boolean | |
| 9345 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9346 | { | |
| 9347 | return (is_ppc64_elf (i->owner) | |
| 9348 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9349 | } | |
| 9350 | ||
| 927be08e AM |
9351 | /* Allocate space for one GOT entry. */ |
| 9352 | ||
| 9353 | static void | |
| 9354 | allocate_got (struct elf_link_hash_entry *h, | |
| 9355 | struct bfd_link_info *info, | |
| 9356 | struct got_entry *gent) | |
| 9357 | { | |
| 9358 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9359 | bfd_boolean dyn; | |
| 9360 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9361 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9362 | ? 16 : 8); | |
| 9363 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9364 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9365 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9366 | ||
| 9367 | gent->got.offset = got->size; | |
| 9368 | got->size += entsize; | |
| 9369 | ||
| 9370 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9371 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9372 | { |
| 33e44f2e | 9373 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9374 | htab->got_reli_size += rentsize; |
| 927be08e | 9375 | } |
| 19e08130 AM |
9376 | else if ((info->shared |
| 9377 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
| 9378 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9379 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9380 | { |
| 19e08130 | 9381 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9382 | relgot->size += rentsize; |
| 927be08e AM |
9383 | } |
| 9384 | } | |
| 9385 | ||
| 7865406b AM |
9386 | /* This function merges got entries in the same toc group. */ |
| 9387 | ||
| 9388 | static void | |
| 9389 | merge_got_entries (struct got_entry **pent) | |
| 9390 | { | |
| 9391 | struct got_entry *ent, *ent2; | |
| 9392 | ||
| 9393 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9394 | if (!ent->is_indirect) | |
| 9395 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9396 | if (!ent2->is_indirect | |
| 9397 | && ent2->addend == ent->addend | |
| 9398 | && ent2->tls_type == ent->tls_type | |
| 9399 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9400 | { | |
| 9401 | ent2->is_indirect = TRUE; | |
| 9402 | ent2->got.ent = ent; | |
| 9403 | } | |
| 9404 | } | |
| 9405 | ||
| 65f38f15 AM |
9406 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9407 | dynamic relocs. */ | |
| 5bd4f169 | 9408 | |
| b34976b6 | 9409 | static bfd_boolean |
| 4ce794b7 | 9410 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9411 | { |
| 65f38f15 AM |
9412 | struct bfd_link_info *info; |
| 9413 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9414 | asection *s; |
| 65f38f15 | 9415 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9416 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9417 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9418 | |
| e92d460e | 9419 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9420 | return TRUE; |
| 5bd4f169 | 9421 | |
| 65f38f15 AM |
9422 | info = (struct bfd_link_info *) inf; |
| 9423 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9424 | if (htab == NULL) |
| 9425 | return FALSE; | |
| 5bd4f169 | 9426 | |
| e054468f AM |
9427 | if ((htab->elf.dynamic_sections_created |
| 9428 | && h->dynindx != -1 | |
| 9429 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) | |
| 9430 | || h->type == STT_GNU_IFUNC) | |
| 5bd4f169 | 9431 | { |
| 411e1bfb AM |
9432 | struct plt_entry *pent; |
| 9433 | bfd_boolean doneone = FALSE; | |
| 9434 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9435 | if (pent->plt.refcount > 0) | |
| 9436 | { | |
| 25f23106 AM |
9437 | if (!htab->elf.dynamic_sections_created |
| 9438 | || h->dynindx == -1) | |
| e054468f | 9439 | { |
| 33e44f2e | 9440 | s = htab->elf.iplt; |
| e054468f | 9441 | pent->plt.offset = s->size; |
| b9e5796b | 9442 | s->size += PLT_ENTRY_SIZE (htab); |
| 33e44f2e | 9443 | s = htab->elf.irelplt; |
| e054468f AM |
9444 | } |
| 9445 | else | |
| 9446 | { | |
| 9447 | /* If this is the first .plt entry, make room for the special | |
| 9448 | first entry. */ | |
| 33e44f2e | 9449 | s = htab->elf.splt; |
| e054468f | 9450 | if (s->size == 0) |
| b9e5796b | 9451 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); |
| e054468f AM |
9452 | |
| 9453 | pent->plt.offset = s->size; | |
| 9454 | ||
| 9455 | /* Make room for this entry. */ | |
| b9e5796b | 9456 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f AM |
9457 | |
| 9458 | /* Make room for the .glink code. */ | |
| 9459 | s = htab->glink; | |
| 9460 | if (s->size == 0) | |
| 9461 | s->size += GLINK_CALL_STUB_SIZE; | |
| b9e5796b AM |
9462 | if (htab->opd_abi) |
| 9463 | { | |
| 9464 | /* We need bigger stubs past index 32767. */ | |
| 9465 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9466 | s->size += 4; | |
| 9467 | s->size += 2*4; | |
| 9468 | } | |
| 9469 | else | |
| e054468f | 9470 | s->size += 4; |
| e054468f AM |
9471 | |
| 9472 | /* We also need to make an entry in the .rela.plt section. */ | |
| 33e44f2e | 9473 | s = htab->elf.srelplt; |
| e054468f | 9474 | } |
| eea6121a | 9475 | s->size += sizeof (Elf64_External_Rela); |
| 411e1bfb AM |
9476 | doneone = TRUE; |
| 9477 | } | |
| 9478 | else | |
| 9479 | pent->plt.offset = (bfd_vma) -1; | |
| 9480 | if (!doneone) | |
| 65f38f15 | 9481 | { |
| 411e1bfb | 9482 | h->plt.plist = NULL; |
| f5385ebf | 9483 | h->needs_plt = 0; |
| 65f38f15 AM |
9484 | } |
| 9485 | } | |
| 9486 | else | |
| 9487 | { | |
| 411e1bfb | 9488 | h->plt.plist = NULL; |
| f5385ebf | 9489 | h->needs_plt = 0; |
| 65f38f15 AM |
9490 | } |
| 9491 | ||
| 951fd09b AM |
9492 | eh = (struct ppc_link_hash_entry *) h; |
| 9493 | /* Run through the TLS GD got entries first if we're changing them | |
| 9494 | to TPREL. */ | |
| e7b938ca | 9495 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9496 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9497 | if (gent->got.refcount > 0 | |
| 9498 | && (gent->tls_type & TLS_GD) != 0) | |
| 9499 | { | |
| 9500 | /* This was a GD entry that has been converted to TPREL. If | |
| 9501 | there happens to be a TPREL entry we can use that one. */ | |
| 9502 | struct got_entry *ent; | |
| 9503 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9504 | if (ent->got.refcount > 0 | |
| 9505 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9506 | && ent->addend == gent->addend |
| 9507 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9508 | { |
| 9509 | gent->got.refcount = 0; | |
| 9510 | break; | |
| 9511 | } | |
| 9512 | ||
| 9513 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9514 | if (gent->got.refcount != 0) | |
| 9515 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9516 | } | |
| 9517 | ||
| 7865406b AM |
9518 | /* Remove any list entry that won't generate a word in the GOT before |
| 9519 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9520 | entries. */ | |
| 0b8bcf0d AM |
9521 | pgent = &h->got.glist; |
| 9522 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9523 | if (gent->got.refcount > 0) |
| 7865406b AM |
9524 | { |
| 9525 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9526 | && !h->def_dynamic) | |
| 9527 | { | |
| 9528 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9529 | *pgent = gent->next; | |
| 9530 | } | |
| 9531 | else | |
| 9532 | pgent = &gent->next; | |
| 9533 | } | |
| 9534 | else | |
| 9535 | *pgent = gent->next; | |
| 9536 | ||
| 9537 | if (!htab->do_multi_toc) | |
| 9538 | merge_got_entries (&h->got.glist); | |
| 9539 | ||
| 9540 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9541 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9542 | { |
| 9543 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9544 | Undefined weak syms won't yet be marked as dynamic, |
| 9545 | nor will all TLS symbols. */ | |
| 411e1bfb | 9546 | if (h->dynindx == -1 |
| b099ab9f | 9547 | && !h->forced_local |
| 25f23106 | 9548 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9549 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9550 | { |
| c152c796 | 9551 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9552 | return FALSE; |
| 9553 | } | |
| 65f38f15 | 9554 | |
| 0c8d6e5c | 9555 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9556 | abort (); |
| 0ffa91dd | 9557 | |
| 927be08e | 9558 | allocate_got (h, info, gent); |
| 411e1bfb | 9559 | } |
| 65f38f15 | 9560 | |
| b099ab9f | 9561 | if (eh->dyn_relocs == NULL |
| 25f23106 | 9562 | || (!htab->elf.dynamic_sections_created |
| 14b5f73f | 9563 | && h->type != STT_GNU_IFUNC)) |
| b34976b6 | 9564 | return TRUE; |
| 65f38f15 AM |
9565 | |
| 9566 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 9567 | dynamic pc-relative relocs against symbols which turn out to be | |
| 9568 | defined in regular objects. For the normal shared case, discard | |
| 9569 | space for relocs that have become local due to symbol visibility | |
| 9570 | changes. */ | |
| 9571 | ||
| 9572 | if (info->shared) | |
| 9573 | { | |
| 9c7a29a3 | 9574 | /* Relocs that use pc_count are those that appear on a call insn, |
| 1d483afe | 9575 | or certain REL relocs (see must_be_dyn_reloc) that can be |
| 9c7a29a3 AM |
9576 | generated via assembly. We want calls to protected symbols to |
| 9577 | resolve directly to the function rather than going via the plt. | |
| 9578 | If people want function pointer comparisons to work as expected | |
| 9579 | then they should avoid writing weird assembly. */ | |
| 09695f56 | 9580 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 65f38f15 | 9581 | { |
| 6061a67d | 9582 | struct elf_dyn_relocs **pp; |
| 65f38f15 AM |
9583 | |
| 9584 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 5bd4f169 | 9585 | { |
| 65f38f15 AM |
9586 | p->count -= p->pc_count; |
| 9587 | p->pc_count = 0; | |
| 9588 | if (p->count == 0) | |
| 9589 | *pp = p->next; | |
| 9590 | else | |
| 9591 | pp = &p->next; | |
| 5bd4f169 | 9592 | } |
| 65f38f15 | 9593 | } |
| 4e795f50 AM |
9594 | |
| 9595 | /* Also discard relocs on undefined weak syms with non-default | |
| 9596 | visibility. */ | |
| cab87ef9 AM |
9597 | if (eh->dyn_relocs != NULL |
| 9598 | && h->root.type == bfd_link_hash_undefweak) | |
| dfbb6ac9 AM |
9599 | { |
| 9600 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9601 | eh->dyn_relocs = NULL; | |
| 9602 | ||
| 9603 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9604 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9605 | else if (h->dynindx == -1 | |
| 9606 | && !h->forced_local) | |
| 9607 | { | |
| 9608 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9609 | return FALSE; | |
| 9610 | } | |
| 9611 | } | |
| 65f38f15 | 9612 | } |
| 25f23106 AM |
9613 | else if (h->type == STT_GNU_IFUNC) |
| 9614 | { | |
| 9615 | if (!h->non_got_ref) | |
| 9616 | eh->dyn_relocs = NULL; | |
| 9617 | } | |
| f4656909 | 9618 | else if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 AM |
9619 | { |
| 9620 | /* For the non-shared case, discard space for relocs against | |
| 9621 | symbols which turn out to need copy relocs or are not | |
| 9622 | dynamic. */ | |
| 9623 | ||
| f5385ebf | 9624 | if (!h->non_got_ref |
| f5385ebf | 9625 | && !h->def_regular) |
| 65f38f15 AM |
9626 | { |
| 9627 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9628 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9629 | if (h->dynindx == -1 | |
| f5385ebf | 9630 | && !h->forced_local) |
| 65f38f15 | 9631 | { |
| c152c796 | 9632 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| b34976b6 | 9633 | return FALSE; |
| 65f38f15 AM |
9634 | } |
| 9635 | ||
| 9636 | /* If that succeeded, we know we'll be keeping all the | |
| 9637 | relocs. */ | |
| 9638 | if (h->dynindx != -1) | |
| 9639 | goto keep; | |
| 9640 | } | |
| 9641 | ||
| 9642 | eh->dyn_relocs = NULL; | |
| 9643 | ||
| ec338859 | 9644 | keep: ; |
| 65f38f15 AM |
9645 | } |
| 9646 | ||
| 9647 | /* Finally, allocate space. */ | |
| 9648 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9649 | { | |
| 9650 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 19e08130 | 9651 | if (eh->elf.type == STT_GNU_IFUNC) |
| 33e44f2e | 9652 | sreloc = htab->elf.irelplt; |
| eea6121a | 9653 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
| 65f38f15 AM |
9654 | } |
| 9655 | ||
| b34976b6 | 9656 | return TRUE; |
| 65f38f15 AM |
9657 | } |
| 9658 | ||
| a345bc8d AM |
9659 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9660 | to set up space for global entry stubs. These are put in glink, | |
| 9661 | after the branch table. */ | |
| 65f38f15 | 9662 | |
| b34976b6 | 9663 | static bfd_boolean |
| a345bc8d | 9664 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9665 | { |
| a345bc8d AM |
9666 | struct bfd_link_info *info; |
| 9667 | struct ppc_link_hash_table *htab; | |
| 9668 | struct plt_entry *pent; | |
| 9669 | asection *s; | |
| 65f38f15 | 9670 | |
| a345bc8d AM |
9671 | if (h->root.type == bfd_link_hash_indirect) |
| 9672 | return TRUE; | |
| 65f38f15 | 9673 | |
| a345bc8d AM |
9674 | if (!h->pointer_equality_needed) |
| 9675 | return TRUE; | |
| 65f38f15 | 9676 | |
| a345bc8d AM |
9677 | if (h->def_regular) |
| 9678 | return TRUE; | |
| 65f38f15 | 9679 | |
| a345bc8d AM |
9680 | info = inf; |
| 9681 | htab = ppc_hash_table (info); | |
| 9682 | if (htab == NULL) | |
| 9683 | return FALSE; | |
| 9684 | ||
| 9685 | s = htab->glink; | |
| 9686 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9687 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9688 | && pent->addend == 0) | |
| 9689 | { | |
| afe397ea AM |
9690 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9691 | and we are not generating a shared library or pie, then we | |
| 9692 | need to define the symbol in the executable on a call stub. | |
| 9693 | This is to avoid text relocations. */ | |
| a345bc8d | 9694 | s->size = (s->size + 15) & -16; |
| afe397ea AM |
9695 | h->root.u.def.section = s; |
| 9696 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9697 | s->size += 16; |
| 9698 | break; | |
| 9699 | } | |
| 9700 | return TRUE; | |
| 9701 | } | |
| 9702 | ||
| 9703 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9704 | read-only sections. */ | |
| 9705 | ||
| 9706 | static bfd_boolean | |
| 9707 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9708 | { | |
| 9709 | if (h->root.type == bfd_link_hash_indirect) | |
| 9710 | return TRUE; | |
| 9711 | ||
| 9712 | if (readonly_dynrelocs (h)) | |
| 9713 | { | |
| 9714 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9715 | ||
| 9716 | /* Not an error, just cut short the traversal. */ | |
| 9717 | return FALSE; | |
| 65f38f15 | 9718 | } |
| b34976b6 | 9719 | return TRUE; |
| 65f38f15 AM |
9720 | } |
| 9721 | ||
| 9722 | /* Set the sizes of the dynamic sections. */ | |
| 9723 | ||
| b34976b6 | 9724 | static bfd_boolean |
| ee67d69a | 9725 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9726 | struct bfd_link_info *info) |
| 65f38f15 AM |
9727 | { |
| 9728 | struct ppc_link_hash_table *htab; | |
| 9729 | bfd *dynobj; | |
| 9730 | asection *s; | |
| b34976b6 | 9731 | bfd_boolean relocs; |
| 65f38f15 | 9732 | bfd *ibfd; |
| 7865406b | 9733 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9734 | |
| 9735 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9736 | if (htab == NULL) |
| 9737 | return FALSE; | |
| 9738 | ||
| 65f38f15 AM |
9739 | dynobj = htab->elf.dynobj; |
| 9740 | if (dynobj == NULL) | |
| 9741 | abort (); | |
| 9742 | ||
| 9743 | if (htab->elf.dynamic_sections_created) | |
| 9744 | { | |
| 9745 | /* Set the contents of the .interp section to the interpreter. */ | |
| 36af4a4e | 9746 | if (info->executable) |
| 65f38f15 | 9747 | { |
| 3d4d4302 | 9748 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9749 | if (s == NULL) |
| 9750 | abort (); | |
| eea6121a | 9751 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9752 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9753 | } | |
| 9754 | } | |
| 9755 | ||
| 9756 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9757 | relocs. */ | |
| c72f2fb2 | 9758 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9759 | { |
| 411e1bfb AM |
9760 | struct got_entry **lgot_ents; |
| 9761 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9762 | struct plt_entry **local_plt; |
| 9763 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9764 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9765 | bfd_size_type locsymcount; |
| 9766 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9767 | |
| 0c8d6e5c | 9768 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9769 | continue; |
| 9770 | ||
| 9771 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9772 | { | |
| 19e08130 | 9773 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9774 | |
| 6edfbbad | 9775 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9776 | { |
| ec338859 AM |
9777 | if (!bfd_is_abs_section (p->sec) |
| 9778 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9779 | { | |
| 9780 | /* Input section has been discarded, either because | |
| 9781 | it is a copy of a linkonce section or due to | |
| 9782 | linker script /DISCARD/, so we'll be discarding | |
| 9783 | the relocs too. */ | |
| 9784 | } | |
| 248866a8 | 9785 | else if (p->count != 0) |
| ec338859 | 9786 | { |
| 19e08130 AM |
9787 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9788 | if (p->ifunc) | |
| 33e44f2e | 9789 | srel = htab->elf.irelplt; |
| eea6121a | 9790 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9791 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9792 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9793 | } |
| 65f38f15 AM |
9794 | } |
| 9795 | } | |
| 9796 | ||
| 411e1bfb AM |
9797 | lgot_ents = elf_local_got_ents (ibfd); |
| 9798 | if (!lgot_ents) | |
| 65f38f15 AM |
9799 | continue; |
| 9800 | ||
| 0ffa91dd | 9801 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9802 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9803 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9804 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9805 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9806 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9807 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9808 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9809 | { |
| 0b8bcf0d | 9810 | struct got_entry **pent, *ent; |
| 411e1bfb | 9811 | |
| 0b8bcf0d AM |
9812 | pent = lgot_ents; |
| 9813 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9814 | if (ent->got.refcount > 0) |
| 9815 | { | |
| e7b938ca | 9816 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9817 | { |
| 927be08e | 9818 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9819 | *pent = ent->next; |
| 411e1bfb AM |
9820 | } |
| 9821 | else | |
| 9822 | { | |
| 19e08130 AM |
9823 | unsigned int ent_size = 8; |
| 9824 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9825 | ||
| eea6121a | 9826 | ent->got.offset = s->size; |
| e7b938ca | 9827 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9828 | { |
| 19e08130 AM |
9829 | ent_size *= 2; |
| 9830 | rel_size *= 2; | |
| 9831 | } | |
| 9832 | s->size += ent_size; | |
| 9833 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9834 | { | |
| 33e44f2e | 9835 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
9836 | htab->got_reli_size += rel_size; |
| 9837 | } | |
| 9838 | else if (info->shared) | |
| 9839 | { | |
| 9840 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9841 | srel->size += rel_size; | |
| 927be08e | 9842 | } |
| 0b8bcf0d | 9843 | pent = &ent->next; |
| 411e1bfb AM |
9844 | } |
| 9845 | } | |
| 9846 | else | |
| 0b8bcf0d | 9847 | *pent = ent->next; |
| 65f38f15 | 9848 | } |
| e054468f AM |
9849 | |
| 9850 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9851 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9852 | { | |
| 9853 | struct plt_entry *ent; | |
| 9854 | ||
| 9855 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9856 | if (ent->plt.refcount > 0) | |
| 9857 | { | |
| 33e44f2e | 9858 | s = htab->elf.iplt; |
| e054468f | 9859 | ent->plt.offset = s->size; |
| b9e5796b | 9860 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 9861 | |
| 33e44f2e | 9862 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9863 | } |
| 9864 | else | |
| 9865 | ent->plt.offset = (bfd_vma) -1; | |
| 9866 | } | |
| 65f38f15 AM |
9867 | } |
| 9868 | ||
| 9869 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9870 | sym dynamic relocs. */ | |
| 4ce794b7 | 9871 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
9872 | /* Stash the end of glink branch table. */ |
| 9873 | if (htab->glink != NULL) | |
| 9874 | htab->glink->rawsize = htab->glink->size; | |
| 9875 | ||
| 9876 | if (!htab->opd_abi && !info->shared) | |
| 9877 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); | |
| 65f38f15 | 9878 | |
| 7865406b | 9879 | first_tlsld = NULL; |
| c72f2fb2 | 9880 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 9881 | { |
| 7865406b AM |
9882 | struct got_entry *ent; |
| 9883 | ||
| 0c8d6e5c | 9884 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
9885 | continue; |
| 9886 | ||
| 7865406b AM |
9887 | ent = ppc64_tlsld_got (ibfd); |
| 9888 | if (ent->got.refcount > 0) | |
| 102890f0 | 9889 | { |
| 7865406b | 9890 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 9891 | { |
| 7865406b AM |
9892 | ent->is_indirect = TRUE; |
| 9893 | ent->got.ent = first_tlsld; | |
| 9894 | } | |
| 9895 | else | |
| 9896 | { | |
| 9897 | if (first_tlsld == NULL) | |
| 9898 | first_tlsld = ent; | |
| 9899 | s = ppc64_elf_tdata (ibfd)->got; | |
| 9900 | ent->got.offset = s->size; | |
| 9901 | ent->owner = ibfd; | |
| 9902 | s->size += 16; | |
| 9903 | if (info->shared) | |
| 9904 | { | |
| 9905 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9906 | srel->size += sizeof (Elf64_External_Rela); | |
| 9907 | } | |
| 102890f0 AM |
9908 | } |
| 9909 | } | |
| 9910 | else | |
| 7865406b | 9911 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
9912 | } |
| 9913 | ||
| 65f38f15 AM |
9914 | /* We now have determined the sizes of the various dynamic sections. |
| 9915 | Allocate memory for them. */ | |
| b34976b6 | 9916 | relocs = FALSE; |
| 65f38f15 AM |
9917 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 9918 | { | |
| 9919 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9920 | continue; | |
| 9921 | ||
| 4ce794b7 | 9922 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
9923 | /* These haven't been allocated yet; don't strip. */ |
| 9924 | continue; | |
| 33e44f2e AM |
9925 | else if (s == htab->elf.sgot |
| 9926 | || s == htab->elf.splt | |
| 9927 | || s == htab->elf.iplt | |
| c456f082 AM |
9928 | || s == htab->glink |
| 9929 | || s == htab->dynbss) | |
| 65f38f15 AM |
9930 | { |
| 9931 | /* Strip this section if we don't need it; see the | |
| 9932 | comment below. */ | |
| 5bd4f169 | 9933 | } |
| 58d180e8 AM |
9934 | else if (s == htab->glink_eh_frame) |
| 9935 | { | |
| 9936 | if (!bfd_is_abs_section (s->output_section)) | |
| 9937 | /* Not sized yet. */ | |
| 9938 | continue; | |
| 9939 | } | |
| 70cc837d | 9940 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 9941 | { |
| c456f082 | 9942 | if (s->size != 0) |
| 5bd4f169 | 9943 | { |
| 33e44f2e | 9944 | if (s != htab->elf.srelplt) |
| b34976b6 | 9945 | relocs = TRUE; |
| 5bd4f169 AM |
9946 | |
| 9947 | /* We use the reloc_count field as a counter if we need | |
| 9948 | to copy relocs into the output file. */ | |
| 9949 | s->reloc_count = 0; | |
| 9950 | } | |
| 9951 | } | |
| 65f38f15 | 9952 | else |
| 5bd4f169 AM |
9953 | { |
| 9954 | /* It's not one of our sections, so don't allocate space. */ | |
| 9955 | continue; | |
| 9956 | } | |
| 9957 | ||
| eea6121a | 9958 | if (s->size == 0) |
| 5bd4f169 | 9959 | { |
| c456f082 AM |
9960 | /* If we don't need this section, strip it from the |
| 9961 | output file. This is mostly to handle .rela.bss and | |
| 9962 | .rela.plt. We must create both sections in | |
| 9963 | create_dynamic_sections, because they must be created | |
| 9964 | before the linker maps input sections to output | |
| 9965 | sections. The linker does that before | |
| 9966 | adjust_dynamic_symbol is called, and it is that | |
| 9967 | function which decides whether anything needs to go | |
| 9968 | into these sections. */ | |
| 8423293d | 9969 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
9970 | continue; |
| 9971 | } | |
| 9972 | ||
| c456f082 | 9973 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
9974 | continue; |
| 9975 | ||
| 65f38f15 AM |
9976 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 9977 | here in case unused entries are not reclaimed before the | |
| 9978 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
9979 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 9980 | sections instead of garbage. | |
| 9981 | We also rely on the section contents being zero when writing | |
| 9982 | the GOT. */ | |
| eea6121a | 9983 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 9984 | if (s->contents == NULL) |
| b34976b6 | 9985 | return FALSE; |
| 5bd4f169 AM |
9986 | } |
| 9987 | ||
| c72f2fb2 | 9988 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 9989 | { |
| 0c8d6e5c | 9990 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
9991 | continue; |
| 9992 | ||
| e717da7e | 9993 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 9994 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 9995 | { |
| eea6121a | 9996 | if (s->size == 0) |
| 8423293d | 9997 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
9998 | else |
| 9999 | { | |
| eea6121a | 10000 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10001 | if (s->contents == NULL) |
| 10002 | return FALSE; | |
| 10003 | } | |
| 10004 | } | |
| 10005 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10006 | if (s != NULL) | |
| 10007 | { | |
| eea6121a | 10008 | if (s->size == 0) |
| 8423293d | 10009 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10010 | else |
| 10011 | { | |
| eea6121a | 10012 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10013 | if (s->contents == NULL) |
| 10014 | return FALSE; | |
| 10015 | relocs = TRUE; | |
| 10016 | s->reloc_count = 0; | |
| 10017 | } | |
| 10018 | } | |
| 10019 | } | |
| 10020 | ||
| e86ce104 | 10021 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10022 | { |
| e8910a83 AM |
10023 | bfd_boolean tls_opt; |
| 10024 | ||
| 5bd4f169 AM |
10025 | /* Add some entries to the .dynamic section. We fill in the |
| 10026 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10027 | must add the entries now so that we get the correct size for | |
| 10028 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10029 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10030 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10031 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10032 | |
| 36af4a4e | 10033 | if (info->executable) |
| 5bd4f169 | 10034 | { |
| dc810e39 | 10035 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10036 | return FALSE; |
| 5bd4f169 AM |
10037 | } |
| 10038 | ||
| 33e44f2e | 10039 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10040 | { |
| dc810e39 AM |
10041 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10042 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10043 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10044 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10045 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10046 | return FALSE; |
| 5bd4f169 AM |
10047 | } |
| 10048 | ||
| ee67d69a | 10049 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10050 | { |
| 10051 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10052 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10053 | return FALSE; |
| 19397422 AM |
10054 | } |
| 10055 | ||
| e7d1c40c | 10056 | tls_opt = (!htab->params->no_tls_get_addr_opt |
| e8910a83 AM |
10057 | && htab->tls_get_addr_fd != NULL |
| 10058 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10059 | if (tls_opt || !htab->opd_abi) | |
| 10060 | { | |
| 10061 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10062 | return FALSE; | |
| 10063 | } | |
| a7f2871e | 10064 | |
| 5bd4f169 AM |
10065 | if (relocs) |
| 10066 | { | |
| dc810e39 AM |
10067 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10068 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10069 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10070 | return FALSE; |
| 5bd4f169 | 10071 | |
| 65f38f15 AM |
10072 | /* If any dynamic relocs apply to a read-only section, |
| 10073 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10074 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10075 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10076 | |
| 65f38f15 | 10077 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10078 | { |
| 65f38f15 | 10079 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10080 | return FALSE; |
| 5bd4f169 | 10081 | } |
| 5bd4f169 | 10082 | } |
| 5bd4f169 | 10083 | } |
| 65f38f15 | 10084 | #undef add_dynamic_entry |
| 5bd4f169 | 10085 | |
| b34976b6 | 10086 | return TRUE; |
| 5bd4f169 AM |
10087 | } |
| 10088 | ||
| a345bc8d AM |
10089 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10090 | ||
| 10091 | static bfd_boolean | |
| 10092 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10093 | { | |
| 10094 | if (h->plt.plist != NULL | |
| 10095 | && !h->def_regular | |
| 10096 | && !h->pointer_equality_needed) | |
| 10097 | return FALSE; | |
| 10098 | ||
| 10099 | return _bfd_elf_hash_symbol (h); | |
| 10100 | } | |
| 10101 | ||
| 721956f4 | 10102 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10103 | |
| 4ce794b7 AM |
10104 | static inline enum ppc_stub_type |
| 10105 | ppc_type_of_stub (asection *input_sec, | |
| 10106 | const Elf_Internal_Rela *rel, | |
| 10107 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10108 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10109 | bfd_vma destination, |
| 10110 | unsigned long local_off) | |
| 5bd4f169 | 10111 | { |
| 721956f4 AM |
10112 | struct ppc_link_hash_entry *h = *hash; |
| 10113 | bfd_vma location; | |
| 10114 | bfd_vma branch_offset; | |
| 10115 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10116 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10117 | |
| 721956f4 AM |
10118 | if (h != NULL) |
| 10119 | { | |
| e054468f | 10120 | struct plt_entry *ent; |
| 7fe2b9a6 | 10121 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10122 | if (h->oh != NULL |
| 10123 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10124 | { |
| 10125 | fdh = ppc_follow_link (h->oh); | |
| 10126 | *hash = fdh; | |
| 10127 | } | |
| 8387904d | 10128 | |
| e054468f AM |
10129 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10130 | if (ent->addend == rel->r_addend | |
| 10131 | && ent->plt.offset != (bfd_vma) -1) | |
| 10132 | { | |
| e054468f AM |
10133 | *plt_ent = ent; |
| 10134 | return ppc_stub_plt_call; | |
| 10135 | } | |
| 5bd4f169 | 10136 | |
| 7fe2b9a6 AM |
10137 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10138 | either a defined function descriptor or a defined entry symbol | |
| 10139 | in a regular object file, then it is pointless trying to make | |
| 10140 | any other type of stub. */ | |
| 854b41e7 AM |
10141 | if (!is_static_defined (&fdh->elf) |
| 10142 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10143 | return ppc_stub_none; |
| 5d1634d7 | 10144 | } |
| e054468f AM |
10145 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10146 | { | |
| 10147 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10148 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10149 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10150 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10151 | ||
| 10152 | if (local_plt[r_symndx] != NULL) | |
| 10153 | { | |
| 10154 | struct plt_entry *ent; | |
| 10155 | ||
| 10156 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10157 | if (ent->addend == rel->r_addend | |
| 10158 | && ent->plt.offset != (bfd_vma) -1) | |
| 10159 | { | |
| 10160 | *plt_ent = ent; | |
| 10161 | return ppc_stub_plt_call; | |
| 10162 | } | |
| 10163 | } | |
| 10164 | } | |
| 5d1634d7 | 10165 | |
| 721956f4 AM |
10166 | /* Determine where the call point is. */ |
| 10167 | location = (input_sec->output_offset | |
| 10168 | + input_sec->output_section->vma | |
| 10169 | + rel->r_offset); | |
| 5d1634d7 | 10170 | |
| 721956f4 AM |
10171 | branch_offset = destination - location; |
| 10172 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10173 | |
| 721956f4 AM |
10174 | /* Determine if a long branch stub is needed. */ |
| 10175 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10176 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10177 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10178 | |
| 6911b7dc | 10179 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10180 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10181 | is needed later. */ | |
| 10182 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10183 | |
| 721956f4 | 10184 | return ppc_stub_none; |
| 5d1634d7 AM |
10185 | } |
| 10186 | ||
| 794e51c0 AM |
10187 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10188 | to update a plt entry in one thread and have another thread see a | |
| 10189 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10190 | barrier in the call stub. One solution is to make the load of the | |
| 10191 | toc word seem to appear to depend on the load of the function entry | |
| 10192 | word. Another solution is to test for r2 being zero, and branch to | |
| 10193 | the appropriate glink entry if so. | |
| 10194 | ||
| 10195 | . fake dep barrier compare | |
| 71a39c98 AM |
10196 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10197 | . mtctr 12 mtctr 12 | |
| 10198 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10199 | . add 2,2,11 cmpldi 2,0 |
| 10200 | . ld 2,xxx+8(2) bnectr+ | |
| 10201 | . bctr b <glink_entry> | |
| 10202 | ||
| 10203 | The solution involving the compare turns out to be faster, so | |
| 10204 | that's what we use unless the branch won't reach. */ | |
| 10205 | ||
| 10206 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10207 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10208 | |
| 5d1634d7 AM |
10209 | #define PPC_LO(v) ((v) & 0xffff) |
| 10210 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10211 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10212 | ||
| 794e51c0 AM |
10213 | static inline unsigned int |
| 10214 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10215 | struct ppc_stub_hash_entry *stub_entry, | |
| 10216 | bfd_vma off) | |
| 10217 | { | |
| b9e5796b AM |
10218 | unsigned size = 12; |
| 10219 | ||
| 10220 | if (ALWAYS_EMIT_R2SAVE | |
| 10221 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10222 | size += 4; | |
| 10223 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10224 | size += 4; |
| b9e5796b AM |
10225 | if (htab->opd_abi) |
| 10226 | { | |
| 10227 | size += 4; | |
| e7d1c40c | 10228 | if (htab->params->plt_static_chain) |
| b9e5796b | 10229 | size += 4; |
| bd4d2eaa AM |
10230 | if (htab->params->plt_thread_safe |
| 10231 | && htab->elf.dynamic_sections_created | |
| 10232 | && stub_entry->h != NULL | |
| 10233 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10234 | size += 8; |
| e7d1c40c | 10235 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10236 | size += 4; |
| 10237 | } | |
| 794e51c0 AM |
10238 | if (stub_entry->h != NULL |
| 10239 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10240 | || stub_entry->h == htab->tls_get_addr) | |
| e7d1c40c | 10241 | && !htab->params->no_tls_get_addr_opt) |
| 794e51c0 AM |
10242 | size += 13 * 4; |
| 10243 | return size; | |
| 10244 | } | |
| 10245 | ||
| 10246 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10247 | then return the padding needed to do so. */ | |
| 10248 | static inline unsigned int | |
| 10249 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10250 | struct ppc_stub_hash_entry *stub_entry, | |
| 10251 | bfd_vma plt_off) | |
| 10252 | { | |
| e7d1c40c | 10253 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 AM |
10254 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 10255 | bfd_vma stub_off = stub_entry->stub_sec->size; | |
| 10256 | ||
| 10257 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10258 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10259 | return stub_align - (stub_off & (stub_align - 1)); |
| 10260 | return 0; | |
| 10261 | } | |
| 10262 | ||
| 10263 | /* Build a .plt call stub. */ | |
| 10264 | ||
| 10265 | static inline bfd_byte * | |
| 10266 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10267 | struct ppc_stub_hash_entry *stub_entry, | |
| 10268 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10269 | { | |
| e7d1c40c | 10270 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10271 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10272 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10273 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10274 | && htab->elf.dynamic_sections_created | |
| 10275 | && stub_entry->h != NULL | |
| 10276 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10277 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10278 | bfd_vma cmp_branch_off = 0; | |
| 10279 | ||
| 10280 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10281 | && plt_load_toc |
| 794e51c0 | 10282 | && plt_thread_safe |
| bd4d2eaa AM |
10283 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10284 | || stub_entry->h == htab->tls_get_addr) | |
| e7d1c40c | 10285 | && !htab->params->no_tls_get_addr_opt)) |
| 794e51c0 AM |
10286 | { |
| 10287 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10288 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10289 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10290 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10291 | bfd_vma to, from; | |
| 10292 | ||
| 68d62958 AM |
10293 | if (pltindex > 32768) |
| 10294 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10295 | to = (glinkoff |
| 10296 | + htab->glink->output_offset | |
| 10297 | + htab->glink->output_section->vma); | |
| 10298 | from = (p - stub_entry->stub_sec->contents | |
| 10299 | + 4 * (ALWAYS_EMIT_R2SAVE | |
| 10300 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10301 | + 4 * (PPC_HA (offset) != 0) | |
| 10302 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10303 | != PPC_HA (offset)) | |
| 10304 | + 4 * (plt_static_chain != 0) | |
| 10305 | + 20 | |
| 10306 | + stub_entry->stub_sec->output_offset | |
| 10307 | + stub_entry->stub_sec->output_section->vma); | |
| 10308 | cmp_branch_off = to - from; | |
| 10309 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10310 | } | |
| 10311 | ||
| ac2df442 AM |
10312 | if (PPC_HA (offset) != 0) |
| 10313 | { | |
| 176a0d42 AM |
10314 | if (r != NULL) |
| 10315 | { | |
| 794e51c0 AM |
10316 | if (ALWAYS_EMIT_R2SAVE |
| 10317 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10318 | r[0].r_offset += 4; | |
| 176a0d42 | 10319 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10320 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10321 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10322 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10323 | if (plt_load_toc) |
| 176a0d42 | 10324 | { |
| b9e5796b | 10325 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10326 | { |
| b9e5796b AM |
10327 | r[2].r_offset = r[1].r_offset + 4; |
| 10328 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10329 | r[2].r_addend = r[0].r_addend; | |
| 10330 | } | |
| 10331 | else | |
| 10332 | { | |
| 10333 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10334 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10335 | r[2].r_addend = r[0].r_addend + 8; | |
| 10336 | if (plt_static_chain) | |
| 10337 | { | |
| 10338 | r[3].r_offset = r[2].r_offset + 4; | |
| 10339 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10340 | r[3].r_addend = r[0].r_addend + 16; | |
| 10341 | } | |
| c7131b65 | 10342 | } |
| 176a0d42 AM |
10343 | } |
| 10344 | } | |
| 794e51c0 AM |
10345 | if (ALWAYS_EMIT_R2SAVE |
| 10346 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10347 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10348 | if (plt_load_toc) |
| 10349 | { | |
| 10350 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10351 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10352 | } | |
| 10353 | else | |
| 10354 | { | |
| 10355 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10356 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10357 | } | |
| b9e5796b AM |
10358 | if (plt_load_toc |
| 10359 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10360 | { |
| 71a39c98 | 10361 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10362 | offset = 0; |
| 10363 | } | |
| 71a39c98 | 10364 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10365 | if (plt_load_toc) |
| 794e51c0 | 10366 | { |
| b9e5796b AM |
10367 | if (use_fake_dep) |
| 10368 | { | |
| 10369 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10370 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10371 | } | |
| 10372 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10373 | if (plt_static_chain) | |
| 10374 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10375 | } |
| ac2df442 AM |
10376 | } |
| 10377 | else | |
| 10378 | { | |
| 176a0d42 AM |
10379 | if (r != NULL) |
| 10380 | { | |
| 794e51c0 AM |
10381 | if (ALWAYS_EMIT_R2SAVE |
| 10382 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10383 | r[0].r_offset += 4; | |
| 176a0d42 | 10384 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10385 | if (plt_load_toc) |
| 176a0d42 | 10386 | { |
| b9e5796b | 10387 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10388 | { |
| b9e5796b AM |
10389 | r[1].r_offset = r[0].r_offset + 4; |
| 10390 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10391 | r[1].r_addend = r[0].r_addend; | |
| 10392 | } | |
| 10393 | else | |
| 10394 | { | |
| 10395 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10396 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10397 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10398 | if (plt_static_chain) | |
| 10399 | { | |
| 10400 | r[2].r_offset = r[1].r_offset + 4; | |
| 10401 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10402 | r[2].r_addend = r[0].r_addend + 8; | |
| 10403 | } | |
| c7131b65 | 10404 | } |
| 176a0d42 AM |
10405 | } |
| 10406 | } | |
| 794e51c0 AM |
10407 | if (ALWAYS_EMIT_R2SAVE |
| 10408 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10409 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10410 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10411 | if (plt_load_toc |
| 10412 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10413 | { |
| 10414 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10415 | offset = 0; | |
| 10416 | } | |
| 71a39c98 | 10417 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10418 | if (plt_load_toc) |
| 794e51c0 | 10419 | { |
| b9e5796b AM |
10420 | if (use_fake_dep) |
| 10421 | { | |
| 10422 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10423 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10424 | } | |
| 10425 | if (plt_static_chain) | |
| 10426 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10427 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10428 | } |
| ac2df442 | 10429 | } |
| b9e5796b | 10430 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10431 | { |
| 10432 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10433 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10434 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10435 | } |
| 10436 | else | |
| 10437 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10438 | return p; |
| 10439 | } | |
| 10440 | ||
| a7f2871e AM |
10441 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10442 | ||
| 10443 | #define LD_R11_0R3 0xe9630000 | |
| 10444 | #define LD_R12_0R3 0xe9830000 | |
| 10445 | #define MR_R0_R3 0x7c601b78 | |
| 10446 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10447 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10448 | #define BEQLR 0x4d820020 | |
| 10449 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10450 | #define STD_R11_0R1 0xf9610000 |
| 10451 | #define BCTRL 0x4e800421 | |
| 10452 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10453 | #define MTLR_R11 0x7d6803a6 |
| 10454 | ||
| 10455 | static inline bfd_byte * | |
| 794e51c0 AM |
10456 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10457 | struct ppc_stub_hash_entry *stub_entry, | |
| 10458 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10459 | { |
| e7d1c40c | 10460 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10461 | |
| a7f2871e AM |
10462 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10463 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10464 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10465 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10466 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10467 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10468 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10469 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10470 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10471 | |
| 10472 | if (r != NULL) | |
| 10473 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10474 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10475 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10476 | ||
| a078d95a | 10477 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10478 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10479 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10480 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10481 | ||
| 10482 | return p; | |
| 10483 | } | |
| 10484 | ||
| 176a0d42 AM |
10485 | static Elf_Internal_Rela * |
| 10486 | get_relocs (asection *sec, int count) | |
| 10487 | { | |
| 10488 | Elf_Internal_Rela *relocs; | |
| 10489 | struct bfd_elf_section_data *elfsec_data; | |
| 10490 | ||
| 10491 | elfsec_data = elf_section_data (sec); | |
| 10492 | relocs = elfsec_data->relocs; | |
| 10493 | if (relocs == NULL) | |
| 10494 | { | |
| 10495 | bfd_size_type relsize; | |
| 10496 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10497 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10498 | if (relocs == NULL) | |
| 10499 | return NULL; | |
| 10500 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10501 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10502 | sizeof (Elf_Internal_Shdr)); | |
| 10503 | if (elfsec_data->rela.hdr == NULL) | |
| 10504 | return NULL; | |
| 10505 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10506 | * sizeof (Elf64_External_Rela)); | |
| 10507 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10508 | sec->reloc_count = 0; |
| 10509 | } | |
| 10510 | relocs += sec->reloc_count; | |
| 10511 | sec->reloc_count += count; | |
| 10512 | return relocs; | |
| 10513 | } | |
| 10514 | ||
| aa374f67 | 10515 | static bfd_vma |
| 25f53a85 | 10516 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10517 | struct ppc_stub_hash_entry *stub_entry) |
| 10518 | { | |
| 25f53a85 | 10519 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| aa374f67 AM |
10520 | bfd_vma r2off = htab->stub_group[stub_entry->target_section->id].toc_off; |
| 10521 | ||
| 10522 | if (r2off == 0) | |
| 10523 | { | |
| 10524 | /* Support linking -R objects. Get the toc pointer from the | |
| 10525 | opd entry. */ | |
| 10526 | char buf[8]; | |
| b9e5796b AM |
10527 | if (!htab->opd_abi) |
| 10528 | return r2off; | |
| aa374f67 AM |
10529 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10530 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10531 | ||
| 10532 | if (strcmp (opd->name, ".opd") != 0 | |
| 10533 | || opd->reloc_count != 0) | |
| 10534 | { | |
| bc30df16 | 10535 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10536 | stub_entry->h->elf.root.root.string); |
| aa374f67 AM |
10537 | bfd_set_error (bfd_error_bad_value); |
| 10538 | return 0; | |
| 10539 | } | |
| 10540 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| 10541 | return 0; | |
| 10542 | r2off = bfd_get_64 (opd->owner, buf); | |
| 25f53a85 | 10543 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 AM |
10544 | } |
| 10545 | r2off -= htab->stub_group[stub_entry->id_sec->id].toc_off; | |
| 10546 | return r2off; | |
| 10547 | } | |
| 10548 | ||
| b34976b6 | 10549 | static bfd_boolean |
| 4ce794b7 | 10550 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10551 | { |
| 721956f4 AM |
10552 | struct ppc_stub_hash_entry *stub_entry; |
| 10553 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10554 | struct bfd_link_info *info; |
| 10555 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10556 | bfd_byte *loc; |
| 10557 | bfd_byte *p; | |
| ee75fd95 | 10558 | bfd_vma dest, off; |
| 721956f4 | 10559 | int size; |
| 176a0d42 | 10560 | Elf_Internal_Rela *r; |
| e054468f | 10561 | asection *plt; |
| 5d1634d7 | 10562 | |
| 721956f4 AM |
10563 | /* Massage our args to the form they really have. */ |
| 10564 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10565 | info = in_arg; |
| 5d1634d7 | 10566 | |
| 5d1634d7 | 10567 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10568 | if (htab == NULL) |
| 10569 | return FALSE; | |
| 5d1634d7 | 10570 | |
| 721956f4 | 10571 | /* Make a note of the offset within the stubs for this entry. */ |
| eea6121a | 10572 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
| 97b639ba | 10573 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; |
| 721956f4 | 10574 | |
| 4ce794b7 | 10575 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10576 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10577 | { |
| 721956f4 | 10578 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10579 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10580 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10581 | dest = (stub_entry->target_value |
| 10582 | + stub_entry->target_section->output_offset | |
| 10583 | + stub_entry->target_section->output_section->vma); | |
| 10584 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10585 | off = dest; | |
| 5d1634d7 | 10586 | |
| 721956f4 AM |
10587 | /* And this is where we are coming from. */ |
| 10588 | off -= (stub_entry->stub_offset | |
| 97b639ba AM |
10589 | + stub_entry->stub_sec->output_offset |
| 10590 | + stub_entry->stub_sec->output_section->vma); | |
| e86ce104 | 10591 | |
| ac2df442 AM |
10592 | size = 4; |
| 10593 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10594 | { |
| 25f53a85 | 10595 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10596 | |
| aa374f67 AM |
10597 | if (r2off == 0) |
| 10598 | { | |
| 10599 | htab->stub_error = TRUE; | |
| 10600 | return FALSE; | |
| 10601 | } | |
| e7d1c40c | 10602 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10603 | loc += 4; |
| ac2df442 AM |
10604 | size = 12; |
| 10605 | if (PPC_HA (r2off) != 0) | |
| 10606 | { | |
| 10607 | size = 16; | |
| e7d1c40c AM |
10608 | bfd_put_32 (htab->params->stub_bfd, |
| 10609 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 AM |
10610 | loc += 4; |
| 10611 | } | |
| e7d1c40c | 10612 | bfd_put_32 (htab->params->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
| ad8e1ba5 | 10613 | loc += 4; |
| ac2df442 | 10614 | off -= size - 4; |
| ad8e1ba5 | 10615 | } |
| e7d1c40c | 10616 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10617 | |
| 5c3dead3 AM |
10618 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10619 | { | |
| bc30df16 AM |
10620 | info->callbacks->einfo |
| 10621 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10622 | stub_entry->root.string); | |
| 5c3dead3 AM |
10623 | htab->stub_error = TRUE; |
| 10624 | return FALSE; | |
| 10625 | } | |
| ee75fd95 AM |
10626 | |
| 10627 | if (info->emitrelocations) | |
| 10628 | { | |
| 176a0d42 AM |
10629 | r = get_relocs (stub_entry->stub_sec, 1); |
| 10630 | if (r == NULL) | |
| 10631 | return FALSE; | |
| ee75fd95 AM |
10632 | r->r_offset = loc - stub_entry->stub_sec->contents; |
| 10633 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); | |
| 10634 | r->r_addend = dest; | |
| 10635 | if (stub_entry->h != NULL) | |
| 10636 | { | |
| 10637 | struct elf_link_hash_entry **hashes; | |
| 10638 | unsigned long symndx; | |
| 10639 | struct ppc_link_hash_entry *h; | |
| 10640 | ||
| e7d1c40c | 10641 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10642 | if (hashes == NULL) |
| 10643 | { | |
| 10644 | bfd_size_type hsize; | |
| 10645 | ||
| 10646 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10647 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10648 | if (hashes == NULL) |
| 10649 | return FALSE; | |
| e7d1c40c | 10650 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10651 | htab->stub_globals = 1; |
| 10652 | } | |
| 10653 | symndx = htab->stub_globals++; | |
| 10654 | h = stub_entry->h; | |
| 10655 | hashes[symndx] = &h->elf; | |
| 10656 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10657 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10658 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10659 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10660 | /* H is an opd symbol. The addend must be zero. */ | |
| 10661 | r->r_addend = 0; | |
| 10662 | else | |
| 10663 | { | |
| 10664 | off = (h->elf.root.u.def.value | |
| 10665 | + h->elf.root.u.def.section->output_offset | |
| 10666 | + h->elf.root.u.def.section->output_section->vma); | |
| 10667 | r->r_addend -= off; | |
| 10668 | } | |
| 10669 | } | |
| 10670 | } | |
| 721956f4 | 10671 | break; |
| e86ce104 | 10672 | |
| 721956f4 | 10673 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10674 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10675 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10676 | stub_entry->root.string + 9, | |
| b34976b6 | 10677 | FALSE, FALSE); |
| 721956f4 AM |
10678 | if (br_entry == NULL) |
| 10679 | { | |
| 8de848d8 | 10680 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10681 | stub_entry->root.string); |
| b34976b6 AM |
10682 | htab->stub_error = TRUE; |
| 10683 | return FALSE; | |
| 721956f4 AM |
10684 | } |
| 10685 | ||
| 176a0d42 AM |
10686 | dest = (stub_entry->target_value |
| 10687 | + stub_entry->target_section->output_offset | |
| 10688 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10689 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10690 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10691 | |
| 176a0d42 | 10692 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10693 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10694 | |
| f94498ff | 10695 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10696 | { |
| f94498ff | 10697 | br_entry->iter = 0; |
| 84f5d08e | 10698 | |
| f94498ff | 10699 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10700 | { |
| f94498ff AM |
10701 | /* Create a reloc for the branch lookup table entry. */ |
| 10702 | Elf_Internal_Rela rela; | |
| 10703 | bfd_byte *rl; | |
| 10704 | ||
| 10705 | rela.r_offset = (br_entry->offset | |
| 10706 | + htab->brlt->output_offset | |
| 10707 | + htab->brlt->output_section->vma); | |
| 10708 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10709 | rela.r_addend = dest; |
| f94498ff AM |
10710 | |
| 10711 | rl = htab->relbrlt->contents; | |
| 10712 | rl += (htab->relbrlt->reloc_count++ | |
| 10713 | * sizeof (Elf64_External_Rela)); | |
| 10714 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10715 | } | |
| 10716 | else if (info->emitrelocations) | |
| 10717 | { | |
| 176a0d42 AM |
10718 | r = get_relocs (htab->brlt, 1); |
| 10719 | if (r == NULL) | |
| 10720 | return FALSE; | |
| 10721 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10722 | normal reloc processing. Symbols and offsets are not | |
| 10723 | translated from input file to output file form, so | |
| 10724 | set up the offset per the output file. */ | |
| f94498ff AM |
10725 | r->r_offset = (br_entry->offset |
| 10726 | + htab->brlt->output_offset | |
| 10727 | + htab->brlt->output_section->vma); | |
| 10728 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10729 | r->r_addend = dest; |
| 84f5d08e | 10730 | } |
| 84f5d08e | 10731 | } |
| 721956f4 | 10732 | |
| 176a0d42 AM |
10733 | dest = (br_entry->offset |
| 10734 | + htab->brlt->output_offset | |
| 10735 | + htab->brlt->output_section->vma); | |
| 10736 | ||
| 10737 | off = (dest | |
| 4ce794b7 | 10738 | - elf_gp (htab->brlt->output_section->owner) |
| ad8e1ba5 | 10739 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10740 | |
| ad8e1ba5 | 10741 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10742 | { |
| 25f53a85 | 10743 | info->callbacks->einfo |
| bc30df16 | 10744 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10745 | stub_entry->root.string); |
| 5d1634d7 | 10746 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10747 | htab->stub_error = TRUE; |
| 10748 | return FALSE; | |
| 5d1634d7 | 10749 | } |
| 41bd81ab | 10750 | |
| 176a0d42 AM |
10751 | if (info->emitrelocations) |
| 10752 | { | |
| 10753 | r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0)); | |
| 10754 | if (r == NULL) | |
| 10755 | return FALSE; | |
| 10756 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10757 | if (bfd_big_endian (info->output_bfd)) |
| 10758 | r[0].r_offset += 2; | |
| 00f412ee | 10759 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
10760 | r[0].r_offset += 4; |
| 10761 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10762 | r[0].r_addend = dest; | |
| 10763 | if (PPC_HA (off) != 0) | |
| 10764 | { | |
| 10765 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10766 | r[1].r_offset = r[0].r_offset + 4; | |
| 10767 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10768 | r[1].r_addend = r[0].r_addend; | |
| 10769 | } | |
| 10770 | } | |
| 10771 | ||
| 00f412ee | 10772 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 10773 | { |
| 176a0d42 | 10774 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10775 | { |
| 10776 | size = 16; | |
| e7d1c40c | 10777 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10778 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10779 | loc += 4; |
| e7d1c40c | 10780 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10781 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10782 | } |
| 10783 | else | |
| 10784 | { | |
| 10785 | size = 12; | |
| e7d1c40c AM |
10786 | bfd_put_32 (htab->params->stub_bfd, |
| 10787 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 10788 | } |
| ad8e1ba5 AM |
10789 | } |
| 10790 | else | |
| 10791 | { | |
| 25f53a85 | 10792 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 10793 | |
| 00f412ee | 10794 | if (r2off == 0 && htab->opd_abi) |
| aa374f67 AM |
10795 | { |
| 10796 | htab->stub_error = TRUE; | |
| 10797 | return FALSE; | |
| 10798 | } | |
| ad8e1ba5 | 10799 | |
| e7d1c40c | 10800 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10801 | loc += 4; |
| 00f412ee | 10802 | size = 16; |
| 176a0d42 | 10803 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10804 | { |
| 10805 | size += 4; | |
| e7d1c40c | 10806 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10807 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10808 | loc += 4; |
| e7d1c40c | 10809 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10810 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10811 | } |
| 10812 | else | |
| e7d1c40c | 10813 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10814 | |
| 10815 | if (PPC_HA (r2off) != 0) | |
| 10816 | { | |
| 10817 | size += 4; | |
| 00f412ee | 10818 | loc += 4; |
| e7d1c40c AM |
10819 | bfd_put_32 (htab->params->stub_bfd, |
| 10820 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
10821 | } |
| 10822 | if (PPC_LO (r2off) != 0) | |
| 10823 | { | |
| 10824 | size += 4; | |
| ac2df442 | 10825 | loc += 4; |
| e7d1c40c AM |
10826 | bfd_put_32 (htab->params->stub_bfd, |
| 10827 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 10828 | } |
| ad8e1ba5 AM |
10829 | } |
| 10830 | loc += 4; | |
| e7d1c40c | 10831 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10832 | loc += 4; |
| e7d1c40c | 10833 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 10834 | break; |
| 5d1634d7 | 10835 | |
| 721956f4 | 10836 | case ppc_stub_plt_call: |
| 794e51c0 | 10837 | case ppc_stub_plt_call_r2save: |
| e054468f | 10838 | if (stub_entry->h != NULL |
| b31867b6 AM |
10839 | && stub_entry->h->is_func_descriptor |
| 10840 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10841 | { |
| b31867b6 AM |
10842 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10843 | ||
| 10844 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 10845 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. | |
| 10846 | FIXME: We used to define the symbol on one of the call | |
| 10847 | stubs instead, which is why we test symbol section id | |
| 10848 | against htab->top_id in various places. Likely all | |
| 10849 | these checks could now disappear. */ | |
| 10850 | if (fh->elf.root.type == bfd_link_hash_undefined) | |
| 10851 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10852 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10853 | fh->was_undefined = 0; | |
| c862ae31 AM |
10854 | } |
| 10855 | ||
| 721956f4 | 10856 | /* Now build the stub. */ |
| e054468f | 10857 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10858 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10859 | abort (); |
| 10860 | ||
| 33e44f2e | 10861 | plt = htab->elf.splt; |
| 25f23106 AM |
10862 | if (!htab->elf.dynamic_sections_created |
| 10863 | || stub_entry->h == NULL | |
| 10864 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 10865 | plt = htab->elf.iplt; |
| e054468f AM |
10866 | |
| 10867 | dest += plt->output_offset + plt->output_section->vma; | |
| 10868 | ||
| 10869 | if (stub_entry->h == NULL | |
| 10870 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 10871 | { | |
| 10872 | Elf_Internal_Rela rela; | |
| 10873 | bfd_byte *rl; | |
| 10874 | ||
| 10875 | rela.r_offset = dest; | |
| ee67d69a AM |
10876 | if (htab->opd_abi) |
| 10877 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 10878 | else | |
| 10879 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
10880 | rela.r_addend = (stub_entry->target_value |
| 10881 | + stub_entry->target_section->output_offset | |
| 10882 | + stub_entry->target_section->output_section->vma); | |
| 10883 | ||
| 33e44f2e AM |
10884 | rl = (htab->elf.irelplt->contents |
| 10885 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
10886 | * sizeof (Elf64_External_Rela))); |
| 10887 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
10888 | stub_entry->plt_ent->plt.offset |= 1; |
| 10889 | } | |
| 176a0d42 AM |
10890 | |
| 10891 | off = (dest | |
| e054468f | 10892 | - elf_gp (plt->output_section->owner) |
| 176a0d42 | 10893 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10894 | |
| ad8e1ba5 | 10895 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 10896 | { |
| 25f53a85 | 10897 | info->callbacks->einfo |
| bc30df16 | 10898 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
10899 | stub_entry->h != NULL |
| 10900 | ? stub_entry->h->elf.root.root.string | |
| 10901 | : "<local sym>"); | |
| 721956f4 | 10902 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10903 | htab->stub_error = TRUE; |
| 10904 | return FALSE; | |
| 721956f4 AM |
10905 | } |
| 10906 | ||
| e7d1c40c | 10907 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
10908 | { |
| 10909 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 10910 | ||
| 10911 | stub_entry->stub_sec->size += pad; | |
| 10912 | stub_entry->stub_offset = stub_entry->stub_sec->size; | |
| 10913 | loc += pad; | |
| 10914 | } | |
| 10915 | ||
| 176a0d42 AM |
10916 | r = NULL; |
| 10917 | if (info->emitrelocations) | |
| 10918 | { | |
| 10919 | r = get_relocs (stub_entry->stub_sec, | |
| 3ba720c7 AM |
10920 | ((PPC_HA (off) != 0) |
| 10921 | + (htab->opd_abi | |
| e7d1c40c | 10922 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
10923 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 10924 | : 1))); | |
| 176a0d42 AM |
10925 | if (r == NULL) |
| 10926 | return FALSE; | |
| 10927 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10928 | if (bfd_big_endian (info->output_bfd)) |
| 10929 | r[0].r_offset += 2; | |
| 176a0d42 AM |
10930 | r[0].r_addend = dest; |
| 10931 | } | |
| a7f2871e AM |
10932 | if (stub_entry->h != NULL |
| 10933 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10934 | || stub_entry->h == htab->tls_get_addr) | |
| e7d1c40c | 10935 | && !htab->params->no_tls_get_addr_opt) |
| 794e51c0 | 10936 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 10937 | else |
| 794e51c0 | 10938 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
10939 | size = p - loc; |
| 10940 | break; | |
| 10941 | ||
| 10942 | default: | |
| 10943 | BFD_FAIL (); | |
| b34976b6 | 10944 | return FALSE; |
| 721956f4 AM |
10945 | } |
| 10946 | ||
| eea6121a | 10947 | stub_entry->stub_sec->size += size; |
| 97b639ba | 10948 | |
| e7d1c40c | 10949 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
10950 | { |
| 10951 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
10952 | size_t len1, len2; |
| 10953 | char *name; | |
| 10954 | const char *const stub_str[] = { "long_branch", | |
| 10955 | "long_branch_r2off", | |
| 10956 | "plt_branch", | |
| 10957 | "plt_branch_r2off", | |
| 794e51c0 | 10958 | "plt_call", |
| ee75fd95 AM |
10959 | "plt_call" }; |
| 10960 | ||
| 10961 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 10962 | len2 = strlen (stub_entry->root.string); | |
| 10963 | name = bfd_malloc (len1 + len2 + 2); | |
| 10964 | if (name == NULL) | |
| 10965 | return FALSE; | |
| 10966 | memcpy (name, stub_entry->root.string, 9); | |
| 10967 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 10968 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 10969 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
10970 | if (h == NULL) |
| 10971 | return FALSE; | |
| 10972 | if (h->root.type == bfd_link_hash_new) | |
| 10973 | { | |
| 10974 | h->root.type = bfd_link_hash_defined; | |
| 10975 | h->root.u.def.section = stub_entry->stub_sec; | |
| 10976 | h->root.u.def.value = stub_entry->stub_offset; | |
| f5385ebf AM |
10977 | h->ref_regular = 1; |
| 10978 | h->def_regular = 1; | |
| 10979 | h->ref_regular_nonweak = 1; | |
| 10980 | h->forced_local = 1; | |
| 10981 | h->non_elf = 0; | |
| 2ec55de3 | 10982 | h->root.linker_def = 1; |
| 97b639ba AM |
10983 | } |
| 10984 | } | |
| 10985 | ||
| b34976b6 | 10986 | return TRUE; |
| 721956f4 AM |
10987 | } |
| 10988 | ||
| 10989 | /* As above, but don't actually build the stub. Just bump offset so | |
| 10990 | we know stub section sizes, and select plt_branch stubs where | |
| 10991 | long_branch stubs won't do. */ | |
| 10992 | ||
| b34976b6 | 10993 | static bfd_boolean |
| 4ce794b7 | 10994 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
10995 | { |
| 10996 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 10997 | struct bfd_link_info *info; |
| 721956f4 AM |
10998 | struct ppc_link_hash_table *htab; |
| 10999 | bfd_vma off; | |
| 11000 | int size; | |
| 11001 | ||
| 11002 | /* Massage our args to the form they really have. */ | |
| 11003 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11004 | info = in_arg; |
| 11005 | ||
| 11006 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11007 | if (htab == NULL) |
| 11008 | return FALSE; | |
| 721956f4 | 11009 | |
| 794e51c0 AM |
11010 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11011 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11012 | { |
| e054468f AM |
11013 | asection *plt; |
| 11014 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11015 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11016 | abort (); |
| 33e44f2e | 11017 | plt = htab->elf.splt; |
| 25f23106 AM |
11018 | if (!htab->elf.dynamic_sections_created |
| 11019 | || stub_entry->h == NULL | |
| 11020 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11021 | plt = htab->elf.iplt; |
| e054468f AM |
11022 | off += (plt->output_offset |
| 11023 | + plt->output_section->vma | |
| 11024 | - elf_gp (plt->output_section->owner) | |
| ad8e1ba5 | 11025 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 11026 | |
| 794e51c0 | 11027 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11028 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11029 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11030 | if (info->emitrelocations) |
| 11031 | { | |
| 11032 | stub_entry->stub_sec->reloc_count | |
| b9e5796b AM |
11033 | += ((PPC_HA (off) != 0) |
| 11034 | + (htab->opd_abi | |
| e7d1c40c | 11035 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11036 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11037 | : 1)); | |
| 176a0d42 AM |
11038 | stub_entry->stub_sec->flags |= SEC_RELOC; |
| 11039 | } | |
| 721956f4 AM |
11040 | } |
| 11041 | else | |
| 11042 | { | |
| ad8e1ba5 AM |
11043 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11044 | variants. */ | |
| ac2df442 | 11045 | bfd_vma r2off = 0; |
| 6911b7dc | 11046 | bfd_vma local_off = 0; |
| ac2df442 | 11047 | |
| 721956f4 AM |
11048 | off = (stub_entry->target_value |
| 11049 | + stub_entry->target_section->output_offset | |
| 11050 | + stub_entry->target_section->output_section->vma); | |
| eea6121a | 11051 | off -= (stub_entry->stub_sec->size |
| 721956f4 AM |
11052 | + stub_entry->stub_sec->output_offset |
| 11053 | + stub_entry->stub_sec->output_section->vma); | |
| 11054 | ||
| ad8e1ba5 AM |
11055 | /* Reset the stub type from the plt variant in case we now |
| 11056 | can reach with a shorter stub. */ | |
| 11057 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11058 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11059 | ||
| 11060 | size = 4; | |
| 11061 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11062 | { | |
| 25f53a85 | 11063 | r2off = get_r2off (info, stub_entry); |
| b9e5796b | 11064 | if (r2off == 0 && htab->opd_abi) |
| aa374f67 AM |
11065 | { |
| 11066 | htab->stub_error = TRUE; | |
| 11067 | return FALSE; | |
| 11068 | } | |
| ac2df442 AM |
11069 | size = 12; |
| 11070 | if (PPC_HA (r2off) != 0) | |
| 11071 | size = 16; | |
| 11072 | off -= size - 4; | |
| ad8e1ba5 AM |
11073 | } |
| 11074 | ||
| 6911b7dc AM |
11075 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11076 | ||
| b9e5796b AM |
11077 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11078 | Do the same for -R objects without function descriptors. */ | |
| 11079 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11080 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| 11081 | && r2off == 0)) | |
| 721956f4 AM |
11082 | { |
| 11083 | struct ppc_branch_hash_entry *br_entry; | |
| 11084 | ||
| 11085 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11086 | stub_entry->root.string + 9, | |
| b34976b6 | 11087 | TRUE, FALSE); |
| 721956f4 AM |
11088 | if (br_entry == NULL) |
| 11089 | { | |
| 8de848d8 | 11090 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11091 | stub_entry->root.string); |
| b34976b6 AM |
11092 | htab->stub_error = TRUE; |
| 11093 | return FALSE; | |
| 721956f4 AM |
11094 | } |
| 11095 | ||
| 11096 | if (br_entry->iter != htab->stub_iteration) | |
| 11097 | { | |
| 11098 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11099 | br_entry->offset = htab->brlt->size; |
| 11100 | htab->brlt->size += 8; | |
| 63bc6f6c | 11101 | |
| ee75fd95 | 11102 | if (htab->relbrlt != NULL) |
| eea6121a | 11103 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11104 | else if (info->emitrelocations) |
| 11105 | { | |
| 11106 | htab->brlt->reloc_count += 1; | |
| 11107 | htab->brlt->flags |= SEC_RELOC; | |
| 11108 | } | |
| 721956f4 | 11109 | } |
| ad8e1ba5 AM |
11110 | |
| 11111 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11112 | off = (br_entry->offset |
| 11113 | + htab->brlt->output_offset | |
| 11114 | + htab->brlt->output_section->vma | |
| 11115 | - elf_gp (htab->brlt->output_section->owner) | |
| 11116 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
| 11117 | ||
| 176a0d42 AM |
11118 | if (info->emitrelocations) |
| 11119 | { | |
| 11120 | stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0); | |
| 11121 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 11122 | } | |
| 11123 | ||
| 00f412ee | 11124 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11125 | { |
| 11126 | size = 12; | |
| 176a0d42 | 11127 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11128 | size = 16; |
| 11129 | } | |
| 11130 | else | |
| 11131 | { | |
| 00f412ee | 11132 | size = 16; |
| 176a0d42 | 11133 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11134 | size += 4; |
| 11135 | ||
| 11136 | if (PPC_HA (r2off) != 0) | |
| 11137 | size += 4; | |
| 00f412ee AM |
11138 | if (PPC_LO (r2off) != 0) |
| 11139 | size += 4; | |
| ac2df442 | 11140 | } |
| 721956f4 | 11141 | } |
| 84f5d08e AM |
11142 | else if (info->emitrelocations) |
| 11143 | { | |
| 11144 | stub_entry->stub_sec->reloc_count += 1; | |
| 11145 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 11146 | } | |
| 721956f4 AM |
11147 | } |
| 11148 | ||
| eea6121a | 11149 | stub_entry->stub_sec->size += size; |
| b34976b6 | 11150 | return TRUE; |
| 721956f4 AM |
11151 | } |
| 11152 | ||
| 11153 | /* Set up various things so that we can make a list of input sections | |
| 11154 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11155 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11156 | |
| 11157 | int | |
| e7d1c40c | 11158 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 AM |
11159 | { |
| 11160 | bfd *input_bfd; | |
| 734b6cf9 | 11161 | int top_id, top_index, id; |
| 721956f4 | 11162 | asection *section; |
| 734b6cf9 | 11163 | asection **input_list; |
| 721956f4 AM |
11164 | bfd_size_type amt; |
| 11165 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11166 | ||
| 4dfe6ac6 NC |
11167 | if (htab == NULL) |
| 11168 | return -1; | |
| 4c52953f | 11169 | |
| 1e2f5b6e | 11170 | /* Find the top input section id. */ |
| 3d6f9012 | 11171 | for (input_bfd = info->input_bfds, top_id = 3; |
| 721956f4 | 11172 | input_bfd != NULL; |
| c72f2fb2 | 11173 | input_bfd = input_bfd->link.next) |
| 721956f4 | 11174 | { |
| 721956f4 AM |
11175 | for (section = input_bfd->sections; |
| 11176 | section != NULL; | |
| 11177 | section = section->next) | |
| 11178 | { | |
| 11179 | if (top_id < section->id) | |
| 11180 | top_id = section->id; | |
| 11181 | } | |
| 11182 | } | |
| 721956f4 | 11183 | |
| 8f3bab57 | 11184 | htab->top_id = top_id; |
| 721956f4 | 11185 | amt = sizeof (struct map_stub) * (top_id + 1); |
| 4ce794b7 | 11186 | htab->stub_group = bfd_zmalloc (amt); |
| 721956f4 AM |
11187 | if (htab->stub_group == NULL) |
| 11188 | return -1; | |
| 11189 | ||
| 3d6f9012 AM |
11190 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11191 | for (id = 0; id < 3; id++) | |
| 11192 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
| 721956f4 | 11193 | |
| 734b6cf9 AM |
11194 | /* We can't use output_bfd->section_count here to find the top output |
| 11195 | section index as some sections may have been removed, and | |
| 8423293d | 11196 | strip_excluded_output_sections doesn't renumber the indices. */ |
| 927be08e | 11197 | for (section = info->output_bfd->sections, top_index = 0; |
| 734b6cf9 AM |
11198 | section != NULL; |
| 11199 | section = section->next) | |
| 11200 | { | |
| 11201 | if (top_index < section->index) | |
| 11202 | top_index = section->index; | |
| 11203 | } | |
| 11204 | ||
| 11205 | htab->top_index = top_index; | |
| 11206 | amt = sizeof (asection *) * (top_index + 1); | |
| 4ce794b7 | 11207 | input_list = bfd_zmalloc (amt); |
| 734b6cf9 AM |
11208 | htab->input_list = input_list; |
| 11209 | if (input_list == NULL) | |
| 11210 | return -1; | |
| 11211 | ||
| 721956f4 AM |
11212 | return 1; |
| 11213 | } | |
| 11214 | ||
| 927be08e AM |
11215 | /* Set up for first pass at multitoc partitioning. */ |
| 11216 | ||
| 11217 | void | |
| 11218 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11219 | { | |
| 11220 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11221 | ||
| 1c865ab2 | 11222 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11223 | htab->toc_bfd = NULL; |
| 11224 | htab->toc_first_sec = NULL; | |
| 11225 | } | |
| 11226 | ||
| e717da7e AM |
11227 | /* The linker repeatedly calls this function for each TOC input section |
| 11228 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11229 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11230 | |
| 927be08e | 11231 | bfd_boolean |
| 4ce794b7 | 11232 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11233 | { |
| 11234 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11235 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11236 | |
| 4dfe6ac6 NC |
11237 | if (htab == NULL) |
| 11238 | return FALSE; | |
| 11239 | ||
| 927be08e | 11240 | if (!htab->second_toc_pass) |
| 4c52953f | 11241 | { |
| 927be08e | 11242 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11243 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11244 | ||
| 11245 | if (new_bfd) | |
| bf102f86 AM |
11246 | { |
| 11247 | htab->toc_bfd = isec->owner; | |
| 11248 | htab->toc_first_sec = isec; | |
| 11249 | } | |
| 927be08e | 11250 | |
| bf102f86 AM |
11251 | addr = isec->output_offset + isec->output_section->vma; |
| 11252 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11253 | limit = 0x80008000; |
| 11254 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11255 | limit = 0x10000; | |
| 11256 | if (off + isec->size > limit) | |
| bf102f86 AM |
11257 | { |
| 11258 | addr = (htab->toc_first_sec->output_offset | |
| 11259 | + htab->toc_first_sec->output_section->vma); | |
| 11260 | htab->toc_curr = addr; | |
| a27e685f | 11261 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11262 | } |
| 99877b66 | 11263 | |
| 927be08e AM |
11264 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11265 | for the input section to be the offset relative to the | |
| 11266 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11267 | offset allows us to move the toc as a whole without | |
| 11268 | recalculating input elf_gp. */ | |
| 11269 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11270 | off += TOC_BASE_OFF; | |
| 11271 | ||
| 11272 | /* Die if someone uses a linker script that doesn't keep input | |
| 11273 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11274 | if (new_bfd |
| 11275 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11276 | && elf_gp (isec->owner) != off) |
| 11277 | return FALSE; | |
| 11278 | ||
| 11279 | elf_gp (isec->owner) = off; | |
| 11280 | return TRUE; | |
| 4c52953f | 11281 | } |
| 927be08e AM |
11282 | |
| 11283 | /* During the second pass toc_first_sec points to the start of | |
| 11284 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11285 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11286 | if (htab->toc_bfd == isec->owner) | |
| 11287 | return TRUE; | |
| 11288 | htab->toc_bfd = isec->owner; | |
| 11289 | ||
| 11290 | if (htab->toc_first_sec == NULL | |
| 11291 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11292 | { | |
| 11293 | htab->toc_curr = elf_gp (isec->owner); | |
| 11294 | htab->toc_first_sec = isec; | |
| 11295 | } | |
| 11296 | addr = (htab->toc_first_sec->output_offset | |
| 11297 | + htab->toc_first_sec->output_section->vma); | |
| 11298 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11299 | elf_gp (isec->owner) = off; | |
| 11300 | ||
| 11301 | return TRUE; | |
| ad8e1ba5 AM |
11302 | } |
| 11303 | ||
| 927be08e AM |
11304 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11305 | symbol H. */ | |
| 11306 | ||
| 11307 | static bfd_boolean | |
| 11308 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11309 | { | |
| 11310 | if (h->root.type == bfd_link_hash_indirect) | |
| 11311 | return TRUE; | |
| 11312 | ||
| 927be08e AM |
11313 | merge_got_entries (&h->got.glist); |
| 11314 | ||
| 11315 | return TRUE; | |
| 11316 | } | |
| 11317 | ||
| 11318 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11319 | symbol H. */ | |
| 11320 | ||
| 11321 | static bfd_boolean | |
| 11322 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11323 | { | |
| 11324 | struct got_entry *gent; | |
| 11325 | ||
| 11326 | if (h->root.type == bfd_link_hash_indirect) | |
| 11327 | return TRUE; | |
| 11328 | ||
| 927be08e AM |
11329 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11330 | if (!gent->is_indirect) | |
| 11331 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11332 | return TRUE; | |
| 11333 | } | |
| 11334 | ||
| 11335 | /* Called on the first multitoc pass after the last call to | |
| 11336 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11337 | entries. */ | |
| 11338 | ||
| 11339 | bfd_boolean | |
| 11340 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11341 | { |
| 11342 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11343 | struct bfd *ibfd, *ibfd2; |
| 11344 | bfd_boolean done_something; | |
| 11345 | ||
| 11346 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11347 | |
| 7865406b AM |
11348 | if (!htab->do_multi_toc) |
| 11349 | return FALSE; | |
| 11350 | ||
| d0fae19d | 11351 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11352 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11353 | ||
| 11354 | /* And tlsld_got. */ | |
| c72f2fb2 | 11355 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11356 | { |
| 11357 | struct got_entry *ent, *ent2; | |
| 11358 | ||
| 11359 | if (!is_ppc64_elf (ibfd)) | |
| 11360 | continue; | |
| 11361 | ||
| 11362 | ent = ppc64_tlsld_got (ibfd); | |
| 11363 | if (!ent->is_indirect | |
| 11364 | && ent->got.offset != (bfd_vma) -1) | |
| 11365 | { | |
| c72f2fb2 | 11366 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11367 | { |
| 11368 | if (!is_ppc64_elf (ibfd2)) | |
| 11369 | continue; | |
| 11370 | ||
| 11371 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11372 | if (!ent2->is_indirect | |
| 11373 | && ent2->got.offset != (bfd_vma) -1 | |
| 11374 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11375 | { | |
| 11376 | ent2->is_indirect = TRUE; | |
| 11377 | ent2->got.ent = ent; | |
| 11378 | } | |
| 11379 | } | |
| 11380 | } | |
| 11381 | } | |
| 11382 | ||
| 11383 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11384 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11385 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11386 | htab->got_reli_size = 0; |
| 11387 | ||
| c72f2fb2 | 11388 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11389 | { |
| 11390 | asection *got, *relgot; | |
| 11391 | ||
| 11392 | if (!is_ppc64_elf (ibfd)) | |
| 11393 | continue; | |
| 11394 | ||
| 11395 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11396 | if (got != NULL) | |
| 11397 | { | |
| 11398 | got->rawsize = got->size; | |
| 11399 | got->size = 0; | |
| 11400 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11401 | relgot->rawsize = relgot->size; | |
| 11402 | relgot->size = 0; | |
| 11403 | } | |
| 11404 | } | |
| 11405 | ||
| 11406 | /* Now reallocate the got, local syms first. We don't need to | |
| 11407 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11408 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11409 | { |
| 11410 | struct got_entry **lgot_ents; | |
| 11411 | struct got_entry **end_lgot_ents; | |
| 11412 | struct plt_entry **local_plt; | |
| 11413 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11414 | unsigned char *lgot_masks; |
| 927be08e AM |
11415 | bfd_size_type locsymcount; |
| 11416 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11417 | asection *s; |
| 927be08e AM |
11418 | |
| 11419 | if (!is_ppc64_elf (ibfd)) | |
| 11420 | continue; | |
| 11421 | ||
| 11422 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11423 | if (!lgot_ents) | |
| 11424 | continue; | |
| 11425 | ||
| 11426 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11427 | locsymcount = symtab_hdr->sh_info; | |
| 11428 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11429 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11430 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11431 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11432 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11433 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11434 | { | |
| 11435 | struct got_entry *ent; | |
| 11436 | ||
| 11437 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11438 | { |
| 19e08130 AM |
11439 | unsigned int ent_size = 8; |
| 11440 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11441 | ||
| d0fae19d AM |
11442 | ent->got.offset = s->size; |
| 11443 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11444 | { |
| 19e08130 AM |
11445 | ent_size *= 2; |
| 11446 | rel_size *= 2; | |
| 11447 | } | |
| 11448 | s->size += ent_size; | |
| 11449 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11450 | { | |
| 33e44f2e | 11451 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11452 | htab->got_reli_size += rel_size; |
| 11453 | } | |
| 11454 | else if (info->shared) | |
| 11455 | { | |
| 11456 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11457 | srel->size += rel_size; | |
| d0fae19d AM |
11458 | } |
| 11459 | } | |
| 927be08e AM |
11460 | } |
| 11461 | } | |
| 11462 | ||
| 11463 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11464 | ||
| c72f2fb2 | 11465 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11466 | { |
| 11467 | struct got_entry *ent; | |
| 11468 | ||
| 11469 | if (!is_ppc64_elf (ibfd)) | |
| 11470 | continue; | |
| 11471 | ||
| 11472 | ent = ppc64_tlsld_got (ibfd); | |
| 11473 | if (!ent->is_indirect | |
| 11474 | && ent->got.offset != (bfd_vma) -1) | |
| 11475 | { | |
| 11476 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11477 | ent->got.offset = s->size; | |
| 11478 | s->size += 16; | |
| 11479 | if (info->shared) | |
| 11480 | { | |
| 11481 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11482 | srel->size += sizeof (Elf64_External_Rela); | |
| 11483 | } | |
| 11484 | } | |
| 11485 | } | |
| 11486 | ||
| 33e44f2e | 11487 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11488 | if (!done_something) |
| c72f2fb2 | 11489 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11490 | { |
| 11491 | asection *got; | |
| 11492 | ||
| 11493 | if (!is_ppc64_elf (ibfd)) | |
| 11494 | continue; | |
| 11495 | ||
| 11496 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11497 | if (got != NULL) | |
| 11498 | { | |
| 11499 | done_something = got->rawsize != got->size; | |
| 11500 | if (done_something) | |
| 11501 | break; | |
| 11502 | } | |
| 11503 | } | |
| 11504 | ||
| 11505 | if (done_something) | |
| e7d1c40c | 11506 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11507 | |
| 11508 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11509 | on input sections. */ | |
| 11510 | htab->toc_bfd = NULL; | |
| 11511 | htab->toc_first_sec = NULL; | |
| 11512 | htab->second_toc_pass = TRUE; | |
| 11513 | return done_something; | |
| 11514 | } | |
| 11515 | ||
| 11516 | /* Called after second pass of multitoc partitioning. */ | |
| 11517 | ||
| 11518 | void | |
| 11519 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11520 | { | |
| 11521 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11522 | ||
| 11523 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11524 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11525 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11526 | } |
| 11527 | ||
| 9b5ecbd0 AM |
11528 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11529 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11530 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11531 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11532 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11533 | for a stub was detected. If called from the top level, a return of | |
| 11534 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11535 | |
| 11536 | static int | |
| 4ce794b7 | 11537 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11538 | { |
| 9b5ecbd0 | 11539 | int ret; |
| 70cc837d AM |
11540 | |
| 11541 | /* Mark this section as checked. */ | |
| 11542 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11543 | |
| 772119ce AM |
11544 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11545 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11546 | return 0; | |
| 11547 | ||
| eea6121a | 11548 | if (isec->size == 0) |
| 082c50f8 AM |
11549 | return 0; |
| 11550 | ||
| 4c52953f AM |
11551 | if (isec->output_section == NULL) |
| 11552 | return 0; | |
| 11553 | ||
| 4c52953f | 11554 | ret = 0; |
| 70cc837d | 11555 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11556 | { |
| 70cc837d AM |
11557 | Elf_Internal_Rela *relstart, *rel; |
| 11558 | Elf_Internal_Sym *local_syms; | |
| 11559 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11560 | |
| 70cc837d AM |
11561 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11562 | info->keep_memory); | |
| 11563 | if (relstart == NULL) | |
| 11564 | return -1; | |
| 90aecf7a | 11565 | |
| 70cc837d AM |
11566 | /* Look for branches to outside of this section. */ |
| 11567 | local_syms = NULL; | |
| 11568 | htab = ppc_hash_table (info); | |
| 11569 | if (htab == NULL) | |
| 11570 | return -1; | |
| 4c52953f | 11571 | |
| 70cc837d | 11572 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11573 | { |
| 70cc837d AM |
11574 | enum elf_ppc64_reloc_type r_type; |
| 11575 | unsigned long r_symndx; | |
| 11576 | struct elf_link_hash_entry *h; | |
| 11577 | struct ppc_link_hash_entry *eh; | |
| 11578 | Elf_Internal_Sym *sym; | |
| 11579 | asection *sym_sec; | |
| 11580 | struct _opd_sec_data *opd; | |
| 11581 | bfd_vma sym_value; | |
| 11582 | bfd_vma dest; | |
| 11583 | ||
| 11584 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11585 | if (r_type != R_PPC64_REL24 | |
| 11586 | && r_type != R_PPC64_REL14 | |
| 11587 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11588 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11589 | continue; | |
| 4c52953f | 11590 | |
| 70cc837d AM |
11591 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11592 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11593 | isec->owner)) | |
| 4c52953f | 11594 | { |
| 70cc837d AM |
11595 | ret = -1; |
| 11596 | break; | |
| 11597 | } | |
| 4c52953f | 11598 | |
| 70cc837d AM |
11599 | /* Calls to dynamic lib functions go through a plt call stub |
| 11600 | that uses r2. */ | |
| 11601 | eh = (struct ppc_link_hash_entry *) h; | |
| 11602 | if (eh != NULL | |
| 11603 | && (eh->elf.plt.plist != NULL | |
| 11604 | || (eh->oh != NULL | |
| 11605 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11606 | { | |
| 11607 | ret = 1; | |
| 11608 | break; | |
| 4c52953f AM |
11609 | } |
| 11610 | ||
| 70cc837d AM |
11611 | if (sym_sec == NULL) |
| 11612 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11613 | continue; |
| 4c52953f | 11614 | |
| 70cc837d AM |
11615 | /* Assume branches to other sections not included in the |
| 11616 | link need stubs too, to cover -R and absolute syms. */ | |
| 11617 | if (sym_sec->output_section == NULL) | |
| 11618 | { | |
| 11619 | ret = 1; | |
| 11620 | break; | |
| 11621 | } | |
| 4c52953f | 11622 | |
| 70cc837d AM |
11623 | if (h == NULL) |
| 11624 | sym_value = sym->st_value; | |
| 11625 | else | |
| 11626 | { | |
| 11627 | if (h->root.type != bfd_link_hash_defined | |
| 11628 | && h->root.type != bfd_link_hash_defweak) | |
| 11629 | abort (); | |
| 11630 | sym_value = h->root.u.def.value; | |
| 11631 | } | |
| 11632 | sym_value += rel->r_addend; | |
| 4c52953f | 11633 | |
| 70cc837d AM |
11634 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11635 | opd = get_opd_info (sym_sec); | |
| 11636 | if (opd != NULL) | |
| 11637 | { | |
| 11638 | if (h == NULL && opd->adjust != NULL) | |
| 11639 | { | |
| 11640 | long adjust; | |
| 4c52953f | 11641 | |
| 92a9c616 | 11642 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11643 | if (adjust == -1) |
| 11644 | /* Assume deleted functions won't ever be called. */ | |
| 11645 | continue; | |
| 11646 | sym_value += adjust; | |
| 11647 | } | |
| 4c52953f | 11648 | |
| aef36ac1 AM |
11649 | dest = opd_entry_value (sym_sec, sym_value, |
| 11650 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11651 | if (dest == (bfd_vma) -1) |
| 11652 | continue; | |
| 11653 | } | |
| 11654 | else | |
| 11655 | dest = (sym_value | |
| 11656 | + sym_sec->output_offset | |
| 11657 | + sym_sec->output_section->vma); | |
| 4c52953f | 11658 | |
| 70cc837d AM |
11659 | /* Ignore branch to self. */ |
| 11660 | if (sym_sec == isec) | |
| 11661 | continue; | |
| 4c52953f | 11662 | |
| 70cc837d AM |
11663 | /* If the called function uses the toc, we need a stub. */ |
| 11664 | if (sym_sec->has_toc_reloc | |
| 11665 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11666 | { |
| 70cc837d | 11667 | ret = 1; |
| 4c52953f AM |
11668 | break; |
| 11669 | } | |
| 70cc837d AM |
11670 | |
| 11671 | /* Assume any branch that needs a long branch stub might in fact | |
| 11672 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11673 | else if (dest - (isec->output_offset | |
| 11674 | + isec->output_section->vma | |
| 6911b7dc AM |
11675 | + rel->r_offset) + (1 << 25) |
| 11676 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11677 | ? h->other | |
| 11678 | : sym->st_other)) | |
| 4c52953f | 11679 | { |
| 70cc837d AM |
11680 | ret = 1; |
| 11681 | break; | |
| 11682 | } | |
| 11683 | ||
| 11684 | /* If calling back to a section in the process of being | |
| 11685 | tested, we can't say for sure that no toc adjusting stubs | |
| 11686 | are needed, so don't return zero. */ | |
| 11687 | else if (sym_sec->call_check_in_progress) | |
| 11688 | ret = 2; | |
| 11689 | ||
| 11690 | /* Branches to another section that itself doesn't have any TOC | |
| 11691 | references are OK. Recursively call ourselves to check. */ | |
| 11692 | else if (!sym_sec->call_check_done) | |
| 11693 | { | |
| 11694 | int recur; | |
| 11695 | ||
| 11696 | /* Mark current section as indeterminate, so that other | |
| 11697 | sections that call back to current won't be marked as | |
| 11698 | known. */ | |
| 11699 | isec->call_check_in_progress = 1; | |
| 11700 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11701 | isec->call_check_in_progress = 0; | |
| 11702 | ||
| 4c52953f AM |
11703 | if (recur != 0) |
| 11704 | { | |
| 70cc837d AM |
11705 | ret = recur; |
| 11706 | if (recur != 2) | |
| 11707 | break; | |
| 4c52953f AM |
11708 | } |
| 11709 | } | |
| 4c52953f | 11710 | } |
| 70cc837d AM |
11711 | |
| 11712 | if (local_syms != NULL | |
| 11713 | && (elf_symtab_hdr (isec->owner).contents | |
| 11714 | != (unsigned char *) local_syms)) | |
| 11715 | free (local_syms); | |
| 11716 | if (elf_section_data (isec)->relocs != relstart) | |
| 11717 | free (relstart); | |
| 9b5ecbd0 AM |
11718 | } |
| 11719 | ||
| 70cc837d AM |
11720 | if ((ret & 1) == 0 |
| 11721 | && isec->map_head.s != NULL | |
| 11722 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11723 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11724 | { | |
| 11725 | if (isec->map_head.s->has_toc_reloc | |
| 11726 | || isec->map_head.s->makes_toc_func_call) | |
| 11727 | ret = 1; | |
| 11728 | else if (!isec->map_head.s->call_check_done) | |
| 11729 | { | |
| 11730 | int recur; | |
| 11731 | isec->call_check_in_progress = 1; | |
| 11732 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11733 | isec->call_check_in_progress = 0; | |
| 11734 | if (recur != 0) | |
| 11735 | ret = recur; | |
| 11736 | } | |
| 11737 | } | |
| 11738 | ||
| 11739 | if (ret == 1) | |
| 11740 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11741 | |
| 9b5ecbd0 AM |
11742 | return ret; |
| 11743 | } | |
| 11744 | ||
| 721956f4 AM |
11745 | /* The linker repeatedly calls this function for each input section, |
| 11746 | in the order that input sections are linked into output sections. | |
| 11747 | Build lists of input sections to determine groupings between which | |
| 11748 | we may insert linker stubs. */ | |
| 11749 | ||
| 9b5ecbd0 | 11750 | bfd_boolean |
| 4ce794b7 | 11751 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11752 | { |
| 11753 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11754 | ||
| 4dfe6ac6 NC |
11755 | if (htab == NULL) |
| 11756 | return FALSE; | |
| 11757 | ||
| 734b6cf9 AM |
11758 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 11759 | && isec->output_section->index <= htab->top_index) | |
| 721956f4 | 11760 | { |
| 734b6cf9 | 11761 | asection **list = htab->input_list + isec->output_section->index; |
| 3d6f9012 | 11762 | /* Steal the link_sec pointer for our list. */ |
| 721956f4 | 11763 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3d6f9012 AM |
11764 | /* This happens to make the list in reverse order, |
| 11765 | which is what we want. */ | |
| 734b6cf9 AM |
11766 | PREV_SEC (isec) = *list; |
| 11767 | *list = isec; | |
| 721956f4 | 11768 | } |
| ad8e1ba5 | 11769 | |
| 4c52953f | 11770 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11771 | { |
| 8b974ba3 AM |
11772 | /* Analyse sections that aren't already flagged as needing a |
| 11773 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 11774 | .fixup contains branches, but only back to the function that | |
| 11775 | hit an exception. */ | |
| 11776 | if (!(isec->has_toc_reloc | |
| 11777 | || (isec->flags & SEC_CODE) == 0 | |
| 11778 | || strcmp (isec->name, ".fixup") == 0 | |
| 11779 | || isec->call_check_done)) | |
| 11780 | { | |
| 11781 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 11782 | return FALSE; |
| 8b974ba3 AM |
11783 | } |
| 11784 | /* Make all sections use the TOC assigned for this object file. | |
| 11785 | This will be wrong for pasted sections; We fix that in | |
| 11786 | check_pasted_section(). */ | |
| 11787 | if (elf_gp (isec->owner) != 0) | |
| 11788 | htab->toc_curr = elf_gp (isec->owner); | |
| 11789 | } | |
| 11790 | ||
| ad8e1ba5 | 11791 | htab->stub_group[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11792 | return TRUE; |
| 721956f4 AM |
11793 | } |
| 11794 | ||
| 70cc837d AM |
11795 | /* Check that all .init and .fini sections use the same toc, if they |
| 11796 | have toc relocs. */ | |
| 11797 | ||
| 11798 | static bfd_boolean | |
| 11799 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11800 | { | |
| 11801 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11802 | ||
| 11803 | if (o != NULL) | |
| 11804 | { | |
| 11805 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11806 | bfd_vma toc_off = 0; | |
| 11807 | asection *i; | |
| 11808 | ||
| 11809 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11810 | if (i->has_toc_reloc) | |
| 11811 | { | |
| 11812 | if (toc_off == 0) | |
| 11813 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11814 | else if (toc_off != htab->stub_group[i->id].toc_off) | |
| 11815 | return FALSE; | |
| 11816 | } | |
| 6683a28d AM |
11817 | |
| 11818 | if (toc_off == 0) | |
| 11819 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11820 | if (i->makes_toc_func_call) | |
| 11821 | { | |
| 11822 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11823 | break; | |
| 11824 | } | |
| 11825 | ||
| 70cc837d AM |
11826 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11827 | if (toc_off != 0) | |
| 11828 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11829 | htab->stub_group[i->id].toc_off = toc_off; | |
| 11830 | } | |
| 11831 | return TRUE; | |
| 11832 | } | |
| 11833 | ||
| 11834 | bfd_boolean | |
| 11835 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11836 | { | |
| 11837 | return (check_pasted_section (info, ".init") | |
| 11838 | & check_pasted_section (info, ".fini")); | |
| 11839 | } | |
| 11840 | ||
| 721956f4 AM |
11841 | /* See whether we can group stub sections together. Grouping stub |
| 11842 | sections may result in fewer stubs. More importantly, we need to | |
| 11843 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11844 | .fini output sections respectively, because glibc splits the | |
| 11845 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11846 | the middle of a function is not a good idea. */ | |
| 11847 | ||
| 11848 | static void | |
| 4ce794b7 AM |
11849 | group_sections (struct ppc_link_hash_table *htab, |
| 11850 | bfd_size_type stub_group_size, | |
| 11851 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11852 | { |
| 7c8fe5c4 AM |
11853 | asection **list; |
| 11854 | bfd_size_type stub14_group_size; | |
| 11855 | bfd_boolean suppress_size_errors; | |
| 11856 | ||
| 11857 | suppress_size_errors = FALSE; | |
| 0cfb0717 | 11858 | stub14_group_size = stub_group_size >> 10; |
| 7c8fe5c4 AM |
11859 | if (stub_group_size == 1) |
| 11860 | { | |
| 11861 | /* Default values. */ | |
| 11862 | if (stubs_always_before_branch) | |
| 11863 | { | |
| 11864 | stub_group_size = 0x1e00000; | |
| 11865 | stub14_group_size = 0x7800; | |
| 11866 | } | |
| 11867 | else | |
| 11868 | { | |
| 11869 | stub_group_size = 0x1c00000; | |
| 11870 | stub14_group_size = 0x7000; | |
| 11871 | } | |
| 11872 | suppress_size_errors = TRUE; | |
| 11873 | } | |
| 11874 | ||
| 11875 | list = htab->input_list + htab->top_index; | |
| 734b6cf9 | 11876 | do |
| 721956f4 | 11877 | { |
| 734b6cf9 AM |
11878 | asection *tail = *list; |
| 11879 | while (tail != NULL) | |
| 721956f4 | 11880 | { |
| 734b6cf9 AM |
11881 | asection *curr; |
| 11882 | asection *prev; | |
| 11883 | bfd_size_type total; | |
| 11884 | bfd_boolean big_sec; | |
| 11885 | bfd_vma curr_toc; | |
| 11886 | ||
| 11887 | curr = tail; | |
| eea6121a | 11888 | total = tail->size; |
| 6bee8834 AM |
11889 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 11890 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
11891 | ? stub14_group_size : stub_group_size); |
| 11892 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
11893 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 11894 | tail->owner, tail); | |
| 734b6cf9 AM |
11895 | curr_toc = htab->stub_group[tail->id].toc_off; |
| 11896 | ||
| 11897 | while ((prev = PREV_SEC (curr)) != NULL | |
| 11898 | && ((total += curr->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11899 | < (ppc64_elf_section_data (prev) != NULL |
| 11900 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11901 | ? stub14_group_size : stub_group_size)) |
| ad8e1ba5 | 11902 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
11903 | curr = prev; |
| 11904 | ||
| 11905 | /* OK, the size from the start of CURR to the end is less | |
| 11906 | than stub_group_size and thus can be handled by one stub | |
| 11907 | section. (or the tail section is itself larger than | |
| 11908 | stub_group_size, in which case we may be toast.) We | |
| 11909 | should really be keeping track of the total size of stubs | |
| 11910 | added here, as stubs contribute to the final output | |
| 11911 | section size. That's a little tricky, and this way will | |
| 11912 | only break if stubs added make the total size more than | |
| 11913 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 11914 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 11915 | do | |
| 721956f4 AM |
11916 | { |
| 11917 | prev = PREV_SEC (tail); | |
| 734b6cf9 | 11918 | /* Set up this stub group. */ |
| 721956f4 AM |
11919 | htab->stub_group[tail->id].link_sec = curr; |
| 11920 | } | |
| 734b6cf9 AM |
11921 | while (tail != curr && (tail = prev) != NULL); |
| 11922 | ||
| 11923 | /* But wait, there's more! Input sections up to stub_group_size | |
| 11924 | bytes before the stub section can be handled by it too. | |
| 11925 | Don't do this if we have a really large section after the | |
| 11926 | stubs, as adding more stubs increases the chance that | |
| 11927 | branches may not reach into the stub section. */ | |
| 11928 | if (!stubs_always_before_branch && !big_sec) | |
| 11929 | { | |
| 11930 | total = 0; | |
| 11931 | while (prev != NULL | |
| 11932 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11933 | < (ppc64_elf_section_data (prev) != NULL |
| 11934 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11935 | ? stub14_group_size : stub_group_size)) |
| 734b6cf9 AM |
11936 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 11937 | { | |
| 11938 | tail = prev; | |
| 11939 | prev = PREV_SEC (tail); | |
| 11940 | htab->stub_group[tail->id].link_sec = curr; | |
| 11941 | } | |
| 11942 | } | |
| 11943 | tail = prev; | |
| 721956f4 AM |
11944 | } |
| 11945 | } | |
| 734b6cf9 AM |
11946 | while (list-- != htab->input_list); |
| 11947 | free (htab->input_list); | |
| 721956f4 AM |
11948 | #undef PREV_SEC |
| 11949 | } | |
| 11950 | ||
| 58d180e8 AM |
11951 | static const unsigned char glink_eh_frame_cie[] = |
| 11952 | { | |
| 11953 | 0, 0, 0, 16, /* length. */ | |
| 11954 | 0, 0, 0, 0, /* id. */ | |
| 11955 | 1, /* CIE version. */ | |
| 11956 | 'z', 'R', 0, /* Augmentation string. */ | |
| 11957 | 4, /* Code alignment. */ | |
| 11958 | 0x78, /* Data alignment. */ | |
| 11959 | 65, /* RA reg. */ | |
| 11960 | 1, /* Augmentation size. */ | |
| 11961 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
11962 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 11963 | 0, 0, 0, 0 | |
| 58d180e8 AM |
11964 | }; |
| 11965 | ||
| d969d15f AM |
11966 | /* Stripping output sections is normally done before dynamic section |
| 11967 | symbols have been allocated. This function is called later, and | |
| 11968 | handles cases like htab->brlt which is mapped to its own output | |
| 11969 | section. */ | |
| 11970 | ||
| 11971 | static void | |
| 11972 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 11973 | { | |
| 11974 | if (isec->size == 0 | |
| 11975 | && isec->output_section->size == 0 | |
| 53d8967a | 11976 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
11977 | && !bfd_section_removed_from_list (info->output_bfd, |
| 11978 | isec->output_section) | |
| 11979 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 11980 | { | |
| 11981 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 11982 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 11983 | info->output_bfd->section_count--; | |
| 11984 | } | |
| 11985 | } | |
| 11986 | ||
| 721956f4 AM |
11987 | /* Determine and set the size of the stub section for a final link. |
| 11988 | ||
| 11989 | The basic idea here is to examine all the relocations looking for | |
| 11990 | PC-relative calls to a target that is unreachable with a "bl" | |
| 11991 | instruction. */ | |
| 11992 | ||
| b34976b6 | 11993 | bfd_boolean |
| e7d1c40c | 11994 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
11995 | { |
| 11996 | bfd_size_type stub_group_size; | |
| b34976b6 | 11997 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
11998 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 11999 | ||
| 4dfe6ac6 NC |
12000 | if (htab == NULL) |
| 12001 | return FALSE; | |
| 12002 | ||
| e7d1c40c AM |
12003 | if (htab->params->plt_thread_safe == -1 && !info->executable) |
| 12004 | htab->params->plt_thread_safe = 1; | |
| b9e5796b | 12005 | if (!htab->opd_abi) |
| e7d1c40c AM |
12006 | htab->params->plt_thread_safe = 0; |
| 12007 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12008 | { |
| e2458743 | 12009 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12010 | { |
| 12011 | "pthread_create", | |
| 12012 | /* libstdc++ */ | |
| 12013 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12014 | /* librt */ | |
| 12015 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12016 | "mq_notify", "create_timer", | |
| 12017 | /* libanl */ | |
| 12018 | "getaddrinfo_a", | |
| 12019 | /* libgomp */ | |
| 2300b5a1 | 12020 | "GOMP_parallel", |
| 794e51c0 | 12021 | "GOMP_parallel_start", |
| 2300b5a1 | 12022 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12023 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12024 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12025 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12026 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12027 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12028 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12029 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12030 | "GOMP_parallel_sections", |
| 68ffbac6 | 12031 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12032 | /* libgo */ |
| 12033 | "__go_go", | |
| 794e51c0 AM |
12034 | }; |
| 12035 | unsigned i; | |
| 12036 | ||
| 12037 | for (i = 0; i < sizeof (thread_starter)/ sizeof (thread_starter[0]); i++) | |
| 12038 | { | |
| 12039 | struct elf_link_hash_entry *h; | |
| 12040 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12041 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12042 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12043 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12044 | break; |
| 12045 | } | |
| 12046 | } | |
| e7d1c40c AM |
12047 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12048 | if (htab->params->group_size < 0) | |
| 12049 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12050 | else |
| e7d1c40c | 12051 | stub_group_size = htab->params->group_size; |
| 721956f4 AM |
12052 | |
| 12053 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 12054 | ||
| 721956f4 AM |
12055 | while (1) |
| 12056 | { | |
| 12057 | bfd *input_bfd; | |
| 12058 | unsigned int bfd_indx; | |
| 12059 | asection *stub_sec; | |
| 721956f4 AM |
12060 | |
| 12061 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12062 | |
| 12063 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12064 | input_bfd != NULL; | |
| c72f2fb2 | 12065 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12066 | { |
| 12067 | Elf_Internal_Shdr *symtab_hdr; | |
| 12068 | asection *section; | |
| 6cdc0ccc | 12069 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12070 | |
| 0c8d6e5c | 12071 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12072 | continue; |
| 12073 | ||
| 721956f4 | 12074 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12075 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12076 | if (symtab_hdr->sh_info == 0) |
| 12077 | continue; | |
| 12078 | ||
| 721956f4 AM |
12079 | /* Walk over each section attached to the input bfd. */ |
| 12080 | for (section = input_bfd->sections; | |
| 12081 | section != NULL; | |
| 12082 | section = section->next) | |
| 12083 | { | |
| 721956f4 | 12084 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12085 | |
| 12086 | /* If there aren't any relocs, then there's nothing more | |
| 12087 | to do. */ | |
| 12088 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12089 | || (section->flags & SEC_ALLOC) == 0 |
| 12090 | || (section->flags & SEC_LOAD) == 0 | |
| 12091 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12092 | || section->reloc_count == 0) |
| 12093 | continue; | |
| 12094 | ||
| 12095 | /* If this section is a link-once section that will be | |
| 12096 | discarded, then don't create any stubs. */ | |
| 12097 | if (section->output_section == NULL | |
| 927be08e | 12098 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12099 | continue; |
| 12100 | ||
| 1e2f5b6e AM |
12101 | /* Get the relocs. */ |
| 12102 | internal_relocs | |
| 4ce794b7 | 12103 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12104 | info->keep_memory); |
| 721956f4 | 12105 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12106 | goto error_ret_free_local; |
| 721956f4 AM |
12107 | |
| 12108 | /* Now examine each relocation. */ | |
| 12109 | irela = internal_relocs; | |
| 12110 | irelaend = irela + section->reloc_count; | |
| 12111 | for (; irela < irelaend; irela++) | |
| 12112 | { | |
| 4ce794b7 AM |
12113 | enum elf_ppc64_reloc_type r_type; |
| 12114 | unsigned int r_indx; | |
| 721956f4 AM |
12115 | enum ppc_stub_type stub_type; |
| 12116 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12117 | asection *sym_sec, *code_sec; |
| e054468f | 12118 | bfd_vma sym_value, code_value; |
| 721956f4 | 12119 | bfd_vma destination; |
| 6911b7dc | 12120 | unsigned long local_off; |
| 8843416a | 12121 | bfd_boolean ok_dest; |
| 721956f4 | 12122 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12123 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12124 | struct elf_link_hash_entry *h; |
| 12125 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12126 | char *stub_name; |
| 12127 | const asection *id_sec; | |
| 74f0fb50 | 12128 | struct _opd_sec_data *opd; |
| e054468f | 12129 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12130 | |
| 12131 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12132 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12133 | ||
| 4ce794b7 | 12134 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12135 | { |
| 12136 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12137 | goto error_ret_free_internal; |
| 721956f4 AM |
12138 | } |
| 12139 | ||
| 12140 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12141 | if (r_type != R_PPC64_REL24 |
| 12142 | && r_type != R_PPC64_REL14 | |
| 12143 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12144 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12145 | continue; |
| 12146 | ||
| 12147 | /* Now determine the call target, its name, value, | |
| 12148 | section. */ | |
| 411e1bfb AM |
12149 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12150 | r_indx, input_bfd)) | |
| 12151 | goto error_ret_free_internal; | |
| 12152 | hash = (struct ppc_link_hash_entry *) h; | |
| 12153 | ||
| 8843416a | 12154 | ok_dest = FALSE; |
| 8387904d | 12155 | fdh = NULL; |
| 7fe2b9a6 | 12156 | sym_value = 0; |
| 411e1bfb | 12157 | if (hash == NULL) |
| 721956f4 | 12158 | { |
| 411e1bfb | 12159 | sym_value = sym->st_value; |
| 8843416a | 12160 | ok_dest = TRUE; |
| 721956f4 | 12161 | } |
| 7fe2b9a6 AM |
12162 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12163 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12164 | { | |
| 12165 | sym_value = hash->elf.root.u.def.value; | |
| 12166 | if (sym_sec->output_section != NULL) | |
| 12167 | ok_dest = TRUE; | |
| 12168 | } | |
| 12169 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12170 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12171 | { |
| 99877b66 | 12172 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12173 | use the func descriptor sym instead if it is |
| 12174 | defined. */ | |
| ceb1f1ef | 12175 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 12176 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 12177 | { |
| 8387904d AM |
12178 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12179 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12180 | { | |
| 12181 | sym_sec = fdh->elf.root.u.def.section; | |
| 12182 | sym_value = fdh->elf.root.u.def.value; | |
| 12183 | if (sym_sec->output_section != NULL) | |
| 12184 | ok_dest = TRUE; | |
| 12185 | } | |
| 99877b66 AM |
12186 | else |
| 12187 | fdh = NULL; | |
| 8387904d | 12188 | } |
| 7fe2b9a6 AM |
12189 | } |
| 12190 | else | |
| 12191 | { | |
| 12192 | bfd_set_error (bfd_error_bad_value); | |
| 12193 | goto error_ret_free_internal; | |
| 721956f4 AM |
12194 | } |
| 12195 | ||
| 8843416a | 12196 | destination = 0; |
| 6911b7dc | 12197 | local_off = 0; |
| 8843416a AM |
12198 | if (ok_dest) |
| 12199 | { | |
| 12200 | sym_value += irela->r_addend; | |
| 12201 | destination = (sym_value | |
| 12202 | + sym_sec->output_offset | |
| 12203 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12204 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12205 | ? hash->elf.other | |
| 12206 | : sym->st_other); | |
| 8843416a AM |
12207 | } |
| 12208 | ||
| 8387904d | 12209 | code_sec = sym_sec; |
| e054468f | 12210 | code_value = sym_value; |
| 74f0fb50 AM |
12211 | opd = get_opd_info (sym_sec); |
| 12212 | if (opd != NULL) | |
| 8387904d AM |
12213 | { |
| 12214 | bfd_vma dest; | |
| 12215 | ||
| 74f0fb50 | 12216 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12217 | { |
| 51aecdc5 | 12218 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12219 | if (adjust == -1) |
| 12220 | continue; | |
| e054468f | 12221 | code_value += adjust; |
| 8387904d AM |
12222 | sym_value += adjust; |
| 12223 | } | |
| 12224 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12225 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12226 | if (dest != (bfd_vma) -1) |
| 12227 | { | |
| 12228 | destination = dest; | |
| 12229 | if (fdh != NULL) | |
| 12230 | { | |
| 12231 | /* Fixup old ABI sym to point at code | |
| 12232 | entry. */ | |
| 99877b66 | 12233 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12234 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12235 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12236 | } |
| 12237 | } | |
| 12238 | } | |
| 12239 | ||
| 721956f4 | 12240 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12241 | plt_ent = NULL; |
| 721956f4 | 12242 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12243 | &plt_ent, destination, |
| 12244 | local_off); | |
| ad8e1ba5 AM |
12245 | |
| 12246 | if (stub_type != ppc_stub_plt_call) | |
| 12247 | { | |
| 12248 | /* Check whether we need a TOC adjusting stub. | |
| 12249 | Since the linker pastes together pieces from | |
| 12250 | different object files when creating the | |
| 12251 | _init and _fini functions, it may be that a | |
| 12252 | call to what looks like a local sym is in | |
| 12253 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12254 | if (code_sec != NULL |
| 12255 | && code_sec->output_section != NULL | |
| 12256 | && (htab->stub_group[code_sec->id].toc_off | |
| 9b5ecbd0 | 12257 | != htab->stub_group[section->id].toc_off) |
| 4c52953f AM |
12258 | && (code_sec->has_toc_reloc |
| 12259 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12260 | stub_type = ppc_stub_long_branch_r2off; |
| 12261 | } | |
| 12262 | ||
| 721956f4 AM |
12263 | if (stub_type == ppc_stub_none) |
| 12264 | continue; | |
| 12265 | ||
| 411e1bfb AM |
12266 | /* __tls_get_addr calls might be eliminated. */ |
| 12267 | if (stub_type != ppc_stub_plt_call | |
| 12268 | && hash != NULL | |
| 8387904d AM |
12269 | && (hash == htab->tls_get_addr |
| 12270 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12271 | && section->has_tls_reloc |
| 12272 | && irela != internal_relocs) | |
| 12273 | { | |
| 12274 | /* Get tls info. */ | |
| f961d9dd | 12275 | unsigned char *tls_mask; |
| 411e1bfb | 12276 | |
| 3a71aa26 | 12277 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12278 | irela - 1, input_bfd)) |
| 12279 | goto error_ret_free_internal; | |
| e7b938ca | 12280 | if (*tls_mask != 0) |
| 411e1bfb AM |
12281 | continue; |
| 12282 | } | |
| 12283 | ||
| 3b421ab3 AM |
12284 | if (stub_type == ppc_stub_plt_call |
| 12285 | && irela + 1 < irelaend | |
| 12286 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12287 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12288 | { | |
| 12289 | if (!tocsave_find (htab, INSERT, | |
| 12290 | &local_syms, irela + 1, input_bfd)) | |
| 12291 | goto error_ret_free_internal; | |
| 12292 | } | |
| 12293 | else if (stub_type == ppc_stub_plt_call) | |
| 12294 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12295 | |
| 721956f4 AM |
12296 | /* Support for grouping stub sections. */ |
| 12297 | id_sec = htab->stub_group[section->id].link_sec; | |
| 12298 | ||
| 12299 | /* Get the name of this stub. */ | |
| 12300 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12301 | if (!stub_name) | |
| 12302 | goto error_ret_free_internal; | |
| 12303 | ||
| 12304 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12305 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12306 | if (stub_entry != NULL) |
| 12307 | { | |
| 12308 | /* The proper stub has already been created. */ | |
| 12309 | free (stub_name); | |
| 794e51c0 AM |
12310 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12311 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12312 | continue; |
| 12313 | } | |
| 12314 | ||
| 25f53a85 | 12315 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12316 | if (stub_entry == NULL) |
| 12317 | { | |
| 12318 | free (stub_name); | |
| 6cdc0ccc AM |
12319 | error_ret_free_internal: |
| 12320 | if (elf_section_data (section)->relocs == NULL) | |
| 12321 | free (internal_relocs); | |
| 12322 | error_ret_free_local: | |
| 12323 | if (local_syms != NULL | |
| 12324 | && (symtab_hdr->contents | |
| 12325 | != (unsigned char *) local_syms)) | |
| 12326 | free (local_syms); | |
| b34976b6 | 12327 | return FALSE; |
| 721956f4 AM |
12328 | } |
| 12329 | ||
| ad8e1ba5 | 12330 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12331 | if (stub_type != ppc_stub_plt_call |
| 12332 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12333 | { |
| 12334 | stub_entry->target_value = code_value; | |
| 12335 | stub_entry->target_section = code_sec; | |
| 12336 | } | |
| 12337 | else | |
| 12338 | { | |
| 12339 | stub_entry->target_value = sym_value; | |
| 12340 | stub_entry->target_section = sym_sec; | |
| 12341 | } | |
| 721956f4 | 12342 | stub_entry->h = hash; |
| e054468f | 12343 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12344 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12345 | |
| 12346 | if (stub_entry->h != NULL) | |
| 12347 | htab->stub_globals += 1; | |
| 721956f4 AM |
12348 | } |
| 12349 | ||
| 12350 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12351 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12352 | free (internal_relocs); |
| 721956f4 | 12353 | } |
| 6cdc0ccc AM |
12354 | |
| 12355 | if (local_syms != NULL | |
| 12356 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12357 | { | |
| 12358 | if (!info->keep_memory) | |
| 12359 | free (local_syms); | |
| 12360 | else | |
| 12361 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12362 | } | |
| 721956f4 AM |
12363 | } |
| 12364 | ||
| 5c3dead3 | 12365 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12366 | stub sections. */ |
| e7d1c40c | 12367 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12368 | stub_sec != NULL; |
| 12369 | stub_sec = stub_sec->next) | |
| e717da7e | 12370 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12371 | { |
| 5c3dead3 | 12372 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12373 | stub_sec->size = 0; |
| 12374 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12375 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12376 | } |
| eea6121a AM |
12377 | |
| 12378 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12379 | htab->brlt->reloc_count = 0; |
| 12380 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12381 | if (htab->relbrlt != NULL) |
| eea6121a | 12382 | htab->relbrlt->size = 0; |
| 721956f4 | 12383 | |
| 63bc6f6c | 12384 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12385 | |
| 176a0d42 AM |
12386 | if (info->emitrelocations |
| 12387 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12388 | { | |
| 12389 | htab->glink->reloc_count = 1; | |
| 12390 | htab->glink->flags |= SEC_RELOC; | |
| 12391 | } | |
| 12392 | ||
| 58d180e8 AM |
12393 | if (htab->glink_eh_frame != NULL |
| 12394 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12395 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12396 | { |
| 4bbe044a | 12397 | size_t size = 0, align; |
| 58d180e8 | 12398 | |
| e7d1c40c | 12399 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12400 | stub_sec != NULL; |
| 12401 | stub_sec = stub_sec->next) | |
| 12402 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12403 | size += 24; |
| 58d180e8 AM |
12404 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12405 | size += 24; | |
| 12406 | if (size != 0) | |
| 12407 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12408 | align = 1; |
| 12409 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12410 | align -= 1; | |
| 12411 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12412 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12413 | htab->glink_eh_frame->size = size; | |
| 12414 | } | |
| 12415 | ||
| e7d1c40c AM |
12416 | if (htab->params->plt_stub_align != 0) |
| 12417 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12418 | stub_sec != NULL; |
| 12419 | stub_sec = stub_sec->next) | |
| 12420 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12421 | stub_sec->size = ((stub_sec->size |
| 12422 | + (1 << htab->params->plt_stub_align) - 1) | |
| 12423 | & (-1 << htab->params->plt_stub_align)); | |
| 794e51c0 | 12424 | |
| e7d1c40c | 12425 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12426 | stub_sec != NULL; |
| 12427 | stub_sec = stub_sec->next) | |
| 12428 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| 12429 | && stub_sec->rawsize != stub_sec->size) | |
| 12430 | break; | |
| 12431 | ||
| 12432 | /* Exit from this loop when no stubs have been added, and no stubs | |
| 12433 | have changed size. */ | |
| 58d180e8 AM |
12434 | if (stub_sec == NULL |
| 12435 | && (htab->glink_eh_frame == NULL | |
| 12436 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12437 | break; |
| 12438 | ||
| 721956f4 | 12439 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12440 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12441 | } |
| 12442 | ||
| da44f4e5 AM |
12443 | if (htab->glink_eh_frame != NULL |
| 12444 | && htab->glink_eh_frame->size != 0) | |
| 12445 | { | |
| 12446 | bfd_vma val; | |
| 12447 | bfd_byte *p, *last_fde; | |
| 12448 | size_t last_fde_len, size, align, pad; | |
| 12449 | asection *stub_sec; | |
| 12450 | ||
| 12451 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12452 | if (p == NULL) | |
| 12453 | return FALSE; | |
| 12454 | htab->glink_eh_frame->contents = p; | |
| 12455 | last_fde = p; | |
| 12456 | ||
| 12457 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12458 | /* CIE length (rewrite in case little-endian). */ | |
| 12459 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12460 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12461 | p += sizeof (glink_eh_frame_cie); | |
| 12462 | ||
| 12463 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12464 | stub_sec != NULL; | |
| 12465 | stub_sec = stub_sec->next) | |
| 12466 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12467 | { | |
| 12468 | last_fde = p; | |
| 12469 | last_fde_len = 20; | |
| 12470 | /* FDE length. */ | |
| 12471 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12472 | p += 4; | |
| 12473 | /* CIE pointer. */ | |
| 12474 | val = p - htab->glink_eh_frame->contents; | |
| 12475 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12476 | p += 4; | |
| 12477 | /* Offset to stub section, written later. */ | |
| 12478 | p += 4; | |
| 12479 | /* stub section size. */ | |
| 12480 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12481 | p += 4; | |
| 12482 | /* Augmentation. */ | |
| 12483 | p += 1; | |
| 12484 | /* Pad. */ | |
| 12485 | p += 7; | |
| 12486 | } | |
| 12487 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12488 | { | |
| 12489 | last_fde = p; | |
| 12490 | last_fde_len = 20; | |
| 12491 | /* FDE length. */ | |
| 12492 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12493 | p += 4; | |
| 12494 | /* CIE pointer. */ | |
| 12495 | val = p - htab->glink_eh_frame->contents; | |
| 12496 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12497 | p += 4; | |
| 12498 | /* Offset to .glink, written later. */ | |
| 12499 | p += 4; | |
| 12500 | /* .glink size. */ | |
| 12501 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12502 | p += 4; | |
| 12503 | /* Augmentation. */ | |
| 12504 | p += 1; | |
| 12505 | ||
| 12506 | *p++ = DW_CFA_advance_loc + 1; | |
| 12507 | *p++ = DW_CFA_register; | |
| 12508 | *p++ = 65; | |
| 12509 | *p++ = 12; | |
| 12510 | *p++ = DW_CFA_advance_loc + 4; | |
| 12511 | *p++ = DW_CFA_restore_extended; | |
| 12512 | *p++ = 65; | |
| 12513 | } | |
| 12514 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12515 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12516 | zero padding will be seen as a terminator. */ | |
| 12517 | size = p - htab->glink_eh_frame->contents; | |
| 12518 | align = 1; | |
| 12519 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12520 | align -= 1; | |
| 12521 | pad = ((size + align) & ~align) - size; | |
| 12522 | htab->glink_eh_frame->size = size + pad; | |
| 12523 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12524 | } | |
| 12525 | ||
| d969d15f AM |
12526 | maybe_strip_output (info, htab->brlt); |
| 12527 | if (htab->glink_eh_frame != NULL) | |
| 12528 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12529 | |
| b34976b6 | 12530 | return TRUE; |
| 721956f4 AM |
12531 | } |
| 12532 | ||
| 12533 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12534 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12535 | |
| 805fc799 | 12536 | bfd_vma |
| 1c865ab2 | 12537 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12538 | { |
| 805fc799 | 12539 | asection *s; |
| a27e685f | 12540 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12541 | |
| 805fc799 AM |
12542 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12543 | order. The TOC starts where the first of these sections starts. */ | |
| 12544 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12545 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12546 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12547 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12548 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12549 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12550 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12551 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12552 | { |
| 12553 | /* This may happen for | |
| 12554 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12555 | .toc directive | |
| 12556 | o bad linker script | |
| 12557 | o --gc-sections and empty TOC sections | |
| 12558 | ||
| 12559 | FIXME: Warn user? */ | |
| 12560 | ||
| 12561 | /* Look for a likely section. We probably won't even be | |
| 12562 | using TOCstart. */ | |
| 12563 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12564 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12565 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12566 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12567 | break; | |
| 721956f4 | 12568 | if (s == NULL) |
| 805fc799 | 12569 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12570 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12571 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12572 | break; | |
| 721956f4 | 12573 | if (s == NULL) |
| 805fc799 | 12574 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12575 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12576 | == SEC_ALLOC) | |
| 805fc799 | 12577 | break; |
| 721956f4 | 12578 | if (s == NULL) |
| 805fc799 | 12579 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12580 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12581 | break; |
| 12582 | } | |
| 721956f4 | 12583 | |
| 805fc799 AM |
12584 | TOCstart = 0; |
| 12585 | if (s != NULL) | |
| 12586 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12587 | |
| a27e685f AM |
12588 | /* Force alignment. */ |
| 12589 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12590 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12591 | _bfd_set_gp_value (obfd, TOCstart); |
| 12592 | ||
| 810d4e75 | 12593 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12594 | { |
| 12595 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12596 | ||
| 810d4e75 AM |
12597 | if (htab != NULL) |
| 12598 | { | |
| 12599 | if (htab->elf.hgot != NULL) | |
| 12600 | { | |
| a27e685f | 12601 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12602 | htab->elf.hgot->root.u.def.section = s; |
| 12603 | } | |
| 12604 | } | |
| 12605 | else | |
| 1c865ab2 | 12606 | { |
| 810d4e75 AM |
12607 | struct bfd_link_hash_entry *bh = NULL; |
| 12608 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12609 | s, TOC_BASE_OFF - adjust, |
| 12610 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12611 | } |
| 12612 | } | |
| 805fc799 | 12613 | return TOCstart; |
| 721956f4 AM |
12614 | } |
| 12615 | ||
| a345bc8d AM |
12616 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12617 | write out any global entry stubs. */ | |
| 12618 | ||
| 12619 | static bfd_boolean | |
| 12620 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12621 | { | |
| 12622 | struct bfd_link_info *info; | |
| 12623 | struct ppc_link_hash_table *htab; | |
| 12624 | struct plt_entry *pent; | |
| 12625 | asection *s; | |
| 12626 | ||
| 12627 | if (h->root.type == bfd_link_hash_indirect) | |
| 12628 | return TRUE; | |
| 12629 | ||
| 12630 | if (!h->pointer_equality_needed) | |
| 12631 | return TRUE; | |
| 12632 | ||
| 12633 | if (h->def_regular) | |
| 12634 | return TRUE; | |
| 12635 | ||
| 12636 | info = inf; | |
| 12637 | htab = ppc_hash_table (info); | |
| 12638 | if (htab == NULL) | |
| 12639 | return FALSE; | |
| 12640 | ||
| 12641 | s = htab->glink; | |
| 12642 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12643 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12644 | && pent->addend == 0) | |
| 12645 | { | |
| 12646 | bfd_byte *p; | |
| 12647 | asection *plt; | |
| 12648 | bfd_vma off; | |
| 12649 | ||
| a345bc8d | 12650 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12651 | plt = htab->elf.splt; |
| a345bc8d AM |
12652 | if (!htab->elf.dynamic_sections_created |
| 12653 | || h->dynindx == -1) | |
| 33e44f2e | 12654 | plt = htab->elf.iplt; |
| a345bc8d AM |
12655 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12656 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12657 | ||
| 12658 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12659 | { | |
| 12660 | info->callbacks->einfo | |
| 12661 | (_("%P: linkage table error against `%T'\n"), | |
| 12662 | h->root.root.string); | |
| 12663 | bfd_set_error (bfd_error_bad_value); | |
| 12664 | htab->stub_error = TRUE; | |
| 12665 | } | |
| 12666 | ||
| 7341d5e2 AM |
12667 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12668 | if (htab->params->emit_stub_syms) | |
| 12669 | { | |
| 12670 | size_t len = strlen (h->root.root.string); | |
| 12671 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12672 | ||
| 12673 | if (name == NULL) | |
| 12674 | return FALSE; | |
| 12675 | ||
| 12676 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12677 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12678 | if (h == NULL) | |
| 12679 | return FALSE; | |
| 12680 | if (h->root.type == bfd_link_hash_new) | |
| 12681 | { | |
| 12682 | h->root.type = bfd_link_hash_defined; | |
| 12683 | h->root.u.def.section = s; | |
| 12684 | h->root.u.def.value = p - s->contents; | |
| 12685 | h->ref_regular = 1; | |
| 12686 | h->def_regular = 1; | |
| 12687 | h->ref_regular_nonweak = 1; | |
| 12688 | h->forced_local = 1; | |
| 12689 | h->non_elf = 0; | |
| 2ec55de3 | 12690 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12691 | } |
| 12692 | } | |
| 12693 | ||
| a345bc8d AM |
12694 | if (PPC_HA (off) != 0) |
| 12695 | { | |
| 12696 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12697 | p += 4; | |
| 12698 | } | |
| 12699 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 12700 | p += 4; | |
| 12701 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 12702 | p += 4; | |
| 12703 | bfd_put_32 (s->owner, BCTR, p); | |
| 12704 | break; | |
| 12705 | } | |
| 12706 | return TRUE; | |
| 12707 | } | |
| 12708 | ||
| 721956f4 AM |
12709 | /* Build all the stubs associated with the current output file. |
| 12710 | The stubs are kept in a hash table attached to the main linker | |
| 12711 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12712 | ||
| b34976b6 | 12713 | bfd_boolean |
| e7d1c40c | 12714 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 12715 | char **stats) |
| 5d1634d7 AM |
12716 | { |
| 12717 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 721956f4 | 12718 | asection *stub_sec; |
| 5d1634d7 | 12719 | bfd_byte *p; |
| e717da7e | 12720 | int stub_sec_count = 0; |
| 5d1634d7 | 12721 | |
| 4dfe6ac6 NC |
12722 | if (htab == NULL) |
| 12723 | return FALSE; | |
| 12724 | ||
| eea6121a | 12725 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 12726 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12727 | stub_sec != NULL; |
| 12728 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12729 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12730 | && stub_sec->size != 0) | |
| e717da7e | 12731 | { |
| e7d1c40c | 12732 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
12733 | if (stub_sec->contents == NULL) |
| 12734 | return FALSE; | |
| 12735 | /* We want to check that built size is the same as calculated | |
| 12736 | size. rawsize is a convenient location to use. */ | |
| 12737 | stub_sec->rawsize = stub_sec->size; | |
| 12738 | stub_sec->size = 0; | |
| e717da7e | 12739 | } |
| 5d1634d7 | 12740 | |
| 23eb7e01 | 12741 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12742 | { |
| 9f951329 | 12743 | unsigned int indx; |
| ad8e1ba5 | 12744 | bfd_vma plt0; |
| 9f951329 | 12745 | |
| 721956f4 | 12746 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 12747 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
12748 | { |
| 12749 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12750 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12751 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12752 | if (h == NULL) |
| 12753 | return FALSE; | |
| 12754 | if (h->root.type == bfd_link_hash_new) | |
| 12755 | { | |
| 12756 | h->root.type = bfd_link_hash_defined; | |
| 12757 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12758 | h->root.u.def.value = 8; |
| f5385ebf AM |
12759 | h->ref_regular = 1; |
| 12760 | h->def_regular = 1; | |
| 12761 | h->ref_regular_nonweak = 1; | |
| 12762 | h->forced_local = 1; | |
| 12763 | h->non_elf = 0; | |
| 2ec55de3 | 12764 | h->root.linker_def = 1; |
| 97b639ba AM |
12765 | } |
| 12766 | } | |
| 33e44f2e AM |
12767 | plt0 = (htab->elf.splt->output_section->vma |
| 12768 | + htab->elf.splt->output_offset | |
| 12769 | - 16); | |
| 176a0d42 AM |
12770 | if (info->emitrelocations) |
| 12771 | { | |
| 12772 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12773 | if (r == NULL) | |
| 12774 | return FALSE; | |
| 12775 | r->r_offset = (htab->glink->output_offset | |
| 12776 | + htab->glink->output_section->vma); | |
| 12777 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12778 | r->r_addend = plt0; | |
| 12779 | } | |
| 4ce794b7 | 12780 | p = htab->glink->contents; |
| 176a0d42 | 12781 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12782 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12783 | p += 8; | |
| b9e5796b AM |
12784 | if (htab->opd_abi) |
| 12785 | { | |
| 12786 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 12787 | p += 4; | |
| 12788 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12789 | p += 4; | |
| 12790 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12791 | p += 4; | |
| 12792 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12793 | p += 4; | |
| 12794 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 12795 | p += 4; | |
| 12796 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12797 | p += 4; | |
| 12798 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12799 | p += 4; | |
| 12800 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 12801 | p += 4; | |
| 12802 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12803 | p += 4; | |
| 12804 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 12805 | p += 4; | |
| 12806 | } | |
| 12807 | else | |
| 12808 | { | |
| 12809 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 12810 | p += 4; | |
| 12811 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12812 | p += 4; | |
| 12813 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12814 | p += 4; | |
| 12815 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12816 | p += 4; | |
| 12817 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 12818 | p += 4; | |
| 12819 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 12820 | p += 4; | |
| 12821 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12822 | p += 4; | |
| 12823 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 12824 | p += 4; | |
| 12825 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12826 | p += 4; | |
| 12827 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 12828 | p += 4; | |
| 12829 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12830 | p += 4; | |
| 12831 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 12832 | p += 4; | |
| 12833 | } | |
| 4ce794b7 | 12834 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 12835 | p += 4; |
| ee4bf8d2 AM |
12836 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 12837 | { | |
| 12838 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 12839 | p += 4; | |
| 12840 | } | |
| ad8e1ba5 | 12841 | |
| 9f951329 AM |
12842 | /* Build the .glink lazy link call stubs. */ |
| 12843 | indx = 0; | |
| a345bc8d | 12844 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 12845 | { |
| b9e5796b | 12846 | if (htab->opd_abi) |
| 9f951329 | 12847 | { |
| b9e5796b AM |
12848 | if (indx < 0x8000) |
| 12849 | { | |
| 12850 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 12851 | p += 4; | |
| 12852 | } | |
| 12853 | else | |
| 12854 | { | |
| 12855 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 12856 | p += 4; | |
| 12857 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 12858 | p); | |
| 12859 | p += 4; | |
| 12860 | } | |
| 9f951329 | 12861 | } |
| 4ce794b7 | 12862 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 12863 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 12864 | indx++; |
| 9f951329 AM |
12865 | p += 4; |
| 12866 | } | |
| a345bc8d AM |
12867 | |
| 12868 | /* Build .glink global entry stubs. */ | |
| 12869 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 12870 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 12871 | } |
| 5d1634d7 | 12872 | |
| 7341d5e2 | 12873 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 12874 | { |
| 4ce794b7 | 12875 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 12876 | htab->brlt->size); |
| 4ce794b7 | 12877 | if (htab->brlt->contents == NULL) |
| b34976b6 | 12878 | return FALSE; |
| 721956f4 | 12879 | } |
| ee75fd95 | 12880 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
12881 | { |
| 12882 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 12883 | htab->relbrlt->size); |
| 63bc6f6c AM |
12884 | if (htab->relbrlt->contents == NULL) |
| 12885 | return FALSE; | |
| 12886 | } | |
| 5d1634d7 | 12887 | |
| 721956f4 AM |
12888 | /* Build the stubs as directed by the stub hash table. */ |
| 12889 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 12890 | |
| aa8a7074 AM |
12891 | if (htab->relbrlt != NULL) |
| 12892 | htab->relbrlt->reloc_count = 0; | |
| 12893 | ||
| e7d1c40c AM |
12894 | if (htab->params->plt_stub_align != 0) |
| 12895 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12896 | stub_sec != NULL; |
| 12897 | stub_sec = stub_sec->next) | |
| 12898 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12899 | stub_sec->size = ((stub_sec->size |
| 12900 | + (1 << htab->params->plt_stub_align) - 1) | |
| 12901 | & (-1 << htab->params->plt_stub_align)); | |
| 794e51c0 | 12902 | |
| e7d1c40c | 12903 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12904 | stub_sec != NULL; |
| 12905 | stub_sec = stub_sec->next) | |
| e717da7e AM |
12906 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 12907 | { | |
| 12908 | stub_sec_count += 1; | |
| eea6121a | 12909 | if (stub_sec->rawsize != stub_sec->size) |
| e717da7e AM |
12910 | break; |
| 12911 | } | |
| 5d1634d7 | 12912 | |
| da44f4e5 AM |
12913 | /* Note that the glink_eh_frame check here is not only testing that |
| 12914 | the generated size matched the calculated size but also that | |
| 12915 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 12916 | if (stub_sec != NULL |
| 58d180e8 AM |
12917 | || (htab->glink_eh_frame != NULL |
| 12918 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 12919 | { |
| b34976b6 | 12920 | htab->stub_error = TRUE; |
| 8de848d8 | 12921 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 12922 | } |
| 721956f4 | 12923 | |
| d2a300cf AM |
12924 | if (htab->stub_error) |
| 12925 | return FALSE; | |
| 12926 | ||
| 12927 | if (stats != NULL) | |
| 12928 | { | |
| 12929 | *stats = bfd_malloc (500); | |
| 12930 | if (*stats == NULL) | |
| 12931 | return FALSE; | |
| 12932 | ||
| ee75fd95 | 12933 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
12934 | " branch %lu\n" |
| 12935 | " toc adjust %lu\n" | |
| 12936 | " long branch %lu\n" | |
| 12937 | " long toc adj %lu\n" | |
| 794e51c0 | 12938 | " plt call %lu\n" |
| 7341d5e2 AM |
12939 | " plt call toc %lu\n" |
| 12940 | " global entry %lu"), | |
| e717da7e | 12941 | stub_sec_count, |
| ee75fd95 | 12942 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
12943 | htab->stub_count[ppc_stub_long_branch - 1], |
| 12944 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 12945 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 12946 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 12947 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
12948 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 12949 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
12950 | } |
| 12951 | return TRUE; | |
| 5bd4f169 AM |
12952 | } |
| 12953 | ||
| 99877b66 AM |
12954 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 12955 | ||
| 12956 | static bfd_boolean | |
| 12957 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 12958 | { | |
| 12959 | struct ppc_link_hash_entry *eh; | |
| 12960 | ||
| 12961 | if (h->root.type == bfd_link_hash_indirect) | |
| 12962 | return TRUE; | |
| 12963 | ||
| 99877b66 AM |
12964 | eh = (struct ppc_link_hash_entry *) h; |
| 12965 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 12966 | return TRUE; | |
| 12967 | ||
| 12968 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 12969 | return TRUE; | |
| 12970 | } | |
| 12971 | ||
| 12972 | void | |
| 12973 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 12974 | { | |
| 12975 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
12976 | |
| 12977 | if (htab != NULL) | |
| 12978 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
12979 | } |
| 12980 | ||
| 60124e18 AM |
12981 | /* What to do when ld finds relocations against symbols defined in |
| 12982 | discarded sections. */ | |
| 12983 | ||
| 12984 | static unsigned int | |
| 12985 | ppc64_elf_action_discarded (asection *sec) | |
| 12986 | { | |
| 12987 | if (strcmp (".opd", sec->name) == 0) | |
| 12988 | return 0; | |
| 12989 | ||
| 12990 | if (strcmp (".toc", sec->name) == 0) | |
| 12991 | return 0; | |
| 12992 | ||
| bce50a28 JJ |
12993 | if (strcmp (".toc1", sec->name) == 0) |
| 12994 | return 0; | |
| 12995 | ||
| 60124e18 AM |
12996 | return _bfd_elf_default_action_discarded (sec); |
| 12997 | } | |
| 12998 | ||
| 5bd4f169 AM |
12999 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13000 | to handle the relocations for a section. | |
| 13001 | ||
| 13002 | The relocs are always passed as Rela structures; if the section | |
| 13003 | actually uses Rel structures, the r_addend field will always be | |
| 13004 | zero. | |
| 13005 | ||
| 13006 | This function is responsible for adjust the section contents as | |
| 13007 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13008 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13009 | necessary. |
| 13010 | ||
| 13011 | This function does not have to worry about setting the reloc | |
| 13012 | address or the reloc symbol index. | |
| 13013 | ||
| 13014 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13015 | ||
| 13016 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13017 | corresponding to the st_shndx field of each local symbol. | |
| 13018 | ||
| 13019 | The global hash table entry for the global symbols can be found | |
| 13020 | via elf_sym_hashes (input_bfd). | |
| 13021 | ||
| 1049f94e | 13022 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13023 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13024 | going to be the section symbol corresponding to the output | |
| 13025 | section, which means that the addend must be adjusted | |
| 13026 | accordingly. */ | |
| 13027 | ||
| b34976b6 | 13028 | static bfd_boolean |
| 4ce794b7 AM |
13029 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13030 | struct bfd_link_info *info, | |
| 13031 | bfd *input_bfd, | |
| 13032 | asection *input_section, | |
| 13033 | bfd_byte *contents, | |
| 13034 | Elf_Internal_Rela *relocs, | |
| 13035 | Elf_Internal_Sym *local_syms, | |
| 13036 | asection **local_sections) | |
| 5bd4f169 | 13037 | { |
| 65f38f15 | 13038 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13039 | Elf_Internal_Shdr *symtab_hdr; |
| 13040 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 AM |
13041 | Elf_Internal_Rela *rel; |
| 13042 | Elf_Internal_Rela *relend; | |
| 411e1bfb AM |
13043 | Elf_Internal_Rela outrel; |
| 13044 | bfd_byte *loc; | |
| 411e1bfb | 13045 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13046 | bfd_vma TOCstart; |
| b34976b6 AM |
13047 | bfd_boolean ret = TRUE; |
| 13048 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13049 | /* Assume 'at' branch hints. */ |
| 13050 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 13051 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 13052 | |
| 65f38f15 | 13053 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13054 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13055 | ppc_howto_init (); |
| 13056 | ||
| 65f38f15 | 13057 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13058 | if (htab == NULL) |
| 13059 | return FALSE; | |
| ee75fd95 AM |
13060 | |
| 13061 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13062 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13063 | return TRUE; |
| 13064 | ||
| 0c8d6e5c | 13065 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13066 | |
| 411e1bfb | 13067 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13068 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13069 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13070 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13071 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13072 | |
| 5bd4f169 AM |
13073 | rel = relocs; |
| 13074 | relend = relocs + input_section->reloc_count; | |
| 13075 | for (; rel < relend; rel++) | |
| 13076 | { | |
| 04c9666a | 13077 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13078 | bfd_vma addend; |
| 5bd4f169 AM |
13079 | bfd_reloc_status_type r; |
| 13080 | Elf_Internal_Sym *sym; | |
| 13081 | asection *sec; | |
| 039b3fef AM |
13082 | struct elf_link_hash_entry *h_elf; |
| 13083 | struct ppc_link_hash_entry *h; | |
| 13084 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13085 | const char *sym_name; |
| 0d4792f7 | 13086 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13087 | bfd_vma toc_addend; |
| f961d9dd AM |
13088 | unsigned char tls_mask, tls_gd, tls_type; |
| 13089 | unsigned char sym_type; | |
| 5bd4f169 | 13090 | bfd_vma relocation; |
| b34976b6 AM |
13091 | bfd_boolean unresolved_reloc; |
| 13092 | bfd_boolean warned; | |
| bc30df16 | 13093 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13094 | unsigned int insn; |
| e11840f9 | 13095 | unsigned int mask; |
| 721956f4 AM |
13096 | struct ppc_stub_hash_entry *stub_entry; |
| 13097 | bfd_vma max_br_offset; | |
| 13098 | bfd_vma from; | |
| 31c76678 | 13099 | const Elf_Internal_Rela orig_rel = *rel; |
| b80eed39 AM |
13100 | reloc_howto_type *howto; |
| 13101 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13102 | |
| 4ce794b7 | 13103 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13104 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13105 | |
| 13106 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13107 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13108 | proper TOC base to use. */ | |
| 13109 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| 13110 | && rel != relocs | |
| 13111 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
| 13112 | && is_opd) | |
| 13113 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
| 13114 | ||
| 4ce794b7 AM |
13115 | sym = NULL; |
| 13116 | sec = NULL; | |
| 039b3fef | 13117 | h_elf = NULL; |
| 4ce794b7 | 13118 | sym_name = NULL; |
| b34976b6 AM |
13119 | unresolved_reloc = FALSE; |
| 13120 | warned = FALSE; | |
| 65f38f15 | 13121 | |
| 0b13192e | 13122 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13123 | { |
| 13124 | /* It's a local symbol. */ | |
| 74f0fb50 | 13125 | struct _opd_sec_data *opd; |
| 4025353c | 13126 | |
| 5bd4f169 AM |
13127 | sym = local_syms + r_symndx; |
| 13128 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13129 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13130 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13131 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13132 | opd = get_opd_info (sec); |
| 13133 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13134 | { |
| 51aecdc5 AM |
13135 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13136 | + rel->r_addend)]; | |
| 4025353c AM |
13137 | if (adjust == -1) |
| 13138 | relocation = 0; | |
| 13139 | else | |
| 4cc603a5 AM |
13140 | { |
| 13141 | /* If this is a relocation against the opd section sym | |
| 13142 | and we have edited .opd, adjust the reloc addend so | |
| 13143 | that ld -r and ld --emit-relocs output is correct. | |
| 13144 | If it is a reloc against some other .opd symbol, | |
| 13145 | then the symbol value will be adjusted later. */ | |
| 13146 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13147 | rel->r_addend += adjust; | |
| 13148 | else | |
| 13149 | relocation += adjust; | |
| 13150 | } | |
| 1e2f5b6e | 13151 | } |
| 5bd4f169 AM |
13152 | } |
| 13153 | else | |
| 13154 | { | |
| 62d887d4 L |
13155 | bfd_boolean ignored; |
| 13156 | ||
| b2a8e766 AM |
13157 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13158 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13159 | h_elf, sec, relocation, |
| 62d887d4 | 13160 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13161 | sym_name = h_elf->root.root.string; |
| 13162 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13163 | if (sec != NULL |
| 13164 | && sec->owner == output_bfd | |
| 13165 | && strcmp (sec->name, ".opd") == 0) | |
| 13166 | { | |
| 13167 | /* This is a symbol defined in a linker script. All | |
| 13168 | such are defined in output sections, even those | |
| 13169 | defined by simple assignment from a symbol defined in | |
| 13170 | an input section. Transfer the symbol to an | |
| 13171 | appropriate input .opd section, so that a branch to | |
| 13172 | this symbol will be mapped to the location specified | |
| 13173 | by the opd entry. */ | |
| 13174 | struct bfd_link_order *lo; | |
| 13175 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13176 | if (lo->type == bfd_indirect_link_order) | |
| 13177 | { | |
| 13178 | asection *isec = lo->u.indirect.section; | |
| 13179 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13180 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13181 | + isec->size)) | |
| 13182 | { | |
| 13183 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13184 | h_elf->root.u.def.section = isec; | |
| 13185 | sec = isec; | |
| 13186 | break; | |
| 13187 | } | |
| 13188 | } | |
| 13189 | } | |
| 5bd4f169 | 13190 | } |
| 039b3fef | 13191 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13192 | |
| dbaa2011 | 13193 | if (sec != NULL && discarded_section (sec)) |
| e4067dbb | 13194 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
| 545fd46b MR |
13195 | rel, 1, relend, |
| 13196 | ppc64_elf_howto_table[r_type], 0, | |
| e4067dbb | 13197 | contents); |
| ab96bf03 AM |
13198 | |
| 13199 | if (info->relocatable) | |
| 13200 | continue; | |
| 13201 | ||
| f40da81b AM |
13202 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13203 | { | |
| 13204 | relocation = (TOCstart | |
| 13205 | + htab->stub_group[input_section->id].toc_off); | |
| 13206 | sec = bfd_abs_section_ptr; | |
| 13207 | unresolved_reloc = FALSE; | |
| 13208 | } | |
| 13209 | ||
| 951fd09b AM |
13210 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13211 | based on information we collected in tls_optimize. We edit | |
| 13212 | RELOCS so that --emit-relocs will output something sensible | |
| 13213 | for the final instruction stream. */ | |
| 13214 | tls_mask = 0; | |
| 13215 | tls_gd = 0; | |
| 0d4792f7 | 13216 | toc_symndx = 0; |
| 727fc41e AM |
13217 | if (h != NULL) |
| 13218 | tls_mask = h->tls_mask; | |
| 13219 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13220 | { |
| e054468f AM |
13221 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13222 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13223 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13224 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13225 | tls_mask = lgot_masks[r_symndx]; |
| 13226 | } | |
| 13227 | if (tls_mask == 0 | |
| 13228 | && (r_type == R_PPC64_TLS | |
| 13229 | || r_type == R_PPC64_TLSGD | |
| 13230 | || r_type == R_PPC64_TLSLD)) | |
| 13231 | { | |
| 13232 | /* Check for toc tls entries. */ | |
| f961d9dd | 13233 | unsigned char *toc_tls; |
| 0d4792f7 | 13234 | |
| 727fc41e AM |
13235 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13236 | &local_syms, rel, input_bfd)) | |
| 13237 | return FALSE; | |
| 0d4792f7 | 13238 | |
| 727fc41e AM |
13239 | if (toc_tls) |
| 13240 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13241 | } |
| 13242 | ||
| 13243 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13244 | relocs are used with non-tls syms. */ | |
| cf35638d | 13245 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13246 | && r_type != R_PPC64_NONE |
| 13247 | && (h == NULL | |
| 039b3fef AM |
13248 | || h->elf.root.type == bfd_link_hash_defined |
| 13249 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13250 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13251 | != (sym_type == STT_TLS | |
| 13252 | || (sym_type == STT_SECTION | |
| 13253 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13254 | { |
| 727fc41e AM |
13255 | if (tls_mask != 0 |
| 13256 | && (r_type == R_PPC64_TLS | |
| 13257 | || r_type == R_PPC64_TLSGD | |
| 13258 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13259 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13260 | ; | |
| 13261 | else | |
| 25f53a85 | 13262 | info->callbacks->einfo |
| 1d483afe | 13263 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
13264 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 13265 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 13266 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13267 | ppc64_elf_howto_table[r_type]->name, |
| 13268 | sym_name); | |
| 411e1bfb AM |
13269 | } |
| 13270 | ||
| 13271 | /* Ensure reloc mapping code below stays sane. */ | |
| 13272 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13273 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13274 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13275 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13276 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13277 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13278 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13279 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13280 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13281 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13282 | abort (); | |
| 0d4792f7 | 13283 | |
| 411e1bfb AM |
13284 | switch (r_type) |
| 13285 | { | |
| 13286 | default: | |
| 411e1bfb AM |
13287 | break; |
| 13288 | ||
| ba761f19 AM |
13289 | case R_PPC64_LO_DS_OPT: |
| 13290 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 13291 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 13292 | abort (); | |
| 13293 | insn += (14u << 26) - (58u << 26); | |
| 13294 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 13295 | r_type = R_PPC64_TOC16_LO; | |
| 13296 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13297 | break; | |
| 13298 | ||
| 411e1bfb AM |
13299 | case R_PPC64_TOC16: |
| 13300 | case R_PPC64_TOC16_LO: | |
| 13301 | case R_PPC64_TOC16_DS: | |
| 13302 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13303 | { |
| 13304 | /* Check for toc tls entries. */ | |
| f961d9dd | 13305 | unsigned char *toc_tls; |
| 951fd09b | 13306 | int retval; |
| 411e1bfb | 13307 | |
| 3a71aa26 AM |
13308 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13309 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13310 | if (retval == 0) |
| 411e1bfb AM |
13311 | return FALSE; |
| 13312 | ||
| 13313 | if (toc_tls) | |
| 13314 | { | |
| 951fd09b | 13315 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13316 | if (r_type == R_PPC64_TOC16_DS |
| 13317 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13318 | { |
| 13319 | if (tls_mask != 0 | |
| 13320 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13321 | goto toctprel; | |
| 13322 | } | |
| 411e1bfb | 13323 | else |
| 951fd09b AM |
13324 | { |
| 13325 | /* If we found a GD reloc pair, then we might be | |
| 13326 | doing a GD->IE transition. */ | |
| 13327 | if (retval == 2) | |
| 13328 | { | |
| 13329 | tls_gd = TLS_TPRELGD; | |
| 13330 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13331 | goto tls_ldgd_opt; |
| 951fd09b AM |
13332 | } |
| 13333 | else if (retval == 3) | |
| 13334 | { | |
| 13335 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13336 | goto tls_ldgd_opt; |
| 951fd09b AM |
13337 | } |
| 13338 | } | |
| 411e1bfb AM |
13339 | } |
| 13340 | } | |
| 13341 | break; | |
| 13342 | ||
| 9d6ded02 AM |
13343 | case R_PPC64_GOT_TPREL16_HI: |
| 13344 | case R_PPC64_GOT_TPREL16_HA: | |
| 13345 | if (tls_mask != 0 | |
| 13346 | && (tls_mask & TLS_TPREL) == 0) | |
| 13347 | { | |
| 13348 | rel->r_offset -= d_offset; | |
| 13349 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 13350 | r_type = R_PPC64_NONE; | |
| 13351 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13352 | } | |
| 13353 | break; | |
| 13354 | ||
| 411e1bfb AM |
13355 | case R_PPC64_GOT_TPREL16_DS: |
| 13356 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13357 | if (tls_mask != 0 |
| 13358 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13359 | { |
| 81407a69 | 13360 | toctprel: |
| 4fe5ca5b | 13361 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13362 | insn &= 31 << 21; |
| 13363 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 4fe5ca5b | 13364 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); |
| 411e1bfb | 13365 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13366 | if (toc_symndx != 0) |
| 13367 | { | |
| 13368 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13369 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13370 | /* We changed the symbol. Start over in order to |
| 13371 | get h, sym, sec etc. right. */ | |
| 13372 | rel--; | |
| 13373 | continue; | |
| 13374 | } | |
| 13375 | else | |
| 13376 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13377 | } |
| 13378 | break; | |
| 13379 | ||
| 13380 | case R_PPC64_TLS: | |
| 951fd09b AM |
13381 | if (tls_mask != 0 |
| 13382 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13383 | { |
| 411e1bfb | 13384 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13385 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13386 | if (insn == 0) | |
| 411e1bfb | 13387 | abort (); |
| 411e1bfb | 13388 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13389 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13390 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13391 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13392 | r_type = R_PPC64_TPREL16_LO; |
| 13393 | if (toc_symndx != 0) | |
| 13394 | { | |
| 13395 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13396 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13397 | /* We changed the symbol. Start over in order to |
| 13398 | get h, sym, sec etc. right. */ | |
| 13399 | rel--; | |
| 13400 | continue; | |
| 13401 | } | |
| 13402 | else | |
| 13403 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13404 | } |
| 13405 | break; | |
| 13406 | ||
| 411e1bfb AM |
13407 | case R_PPC64_GOT_TLSGD16_HI: |
| 13408 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13409 | tls_gd = TLS_TPRELGD; |
| 13410 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13411 | goto tls_gdld_hi; | |
| 13412 | break; | |
| 13413 | ||
| 411e1bfb AM |
13414 | case R_PPC64_GOT_TLSLD16_HI: |
| 13415 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13416 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13417 | { |
| 951fd09b AM |
13418 | tls_gdld_hi: |
| 13419 | if ((tls_mask & tls_gd) != 0) | |
| 13420 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13421 | + R_PPC64_GOT_TPREL16_DS); | |
| 13422 | else | |
| 411e1bfb | 13423 | { |
| 4fe5ca5b | 13424 | rel->r_offset -= d_offset; |
| 727ac201 | 13425 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13426 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13427 | } |
| 951fd09b | 13428 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13429 | } |
| 13430 | break; | |
| 13431 | ||
| 951fd09b AM |
13432 | case R_PPC64_GOT_TLSGD16: |
| 13433 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13434 | tls_gd = TLS_TPRELGD; | |
| 13435 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13436 | goto tls_ldgd_opt; |
| 951fd09b | 13437 | break; |
| 411e1bfb | 13438 | |
| 951fd09b AM |
13439 | case R_PPC64_GOT_TLSLD16: |
| 13440 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13441 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13442 | { | |
| 3a71aa26 | 13443 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13444 | bfd_vma offset; |
| 13445 | ||
| 13446 | tls_ldgd_opt: | |
| 727fc41e AM |
13447 | offset = (bfd_vma) -1; |
| 13448 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13449 | __tls_get_addr calls, we must trust that the call | |
| 13450 | stays with its arg setup insns, ie. that the next | |
| 13451 | reloc is the __tls_get_addr call associated with | |
| 13452 | the current reloc. Edit both insns. */ | |
| 13453 | if (input_section->has_tls_get_addr_call | |
| 13454 | && rel + 1 < relend | |
| 13455 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13456 | htab->tls_get_addr, | |
| 13457 | htab->tls_get_addr_fd)) | |
| 13458 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13459 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13460 | need to keep the destination reg. It may be | |
| 13461 | something other than the usual r3, and moved to r3 | |
| 13462 | before the call by intervening code. */ | |
| 13463 | insn1 = bfd_get_32 (output_bfd, | |
| 13464 | contents + rel->r_offset - d_offset); | |
| 102890f0 | 13465 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13466 | { |
| 102890f0 | 13467 | /* IE */ |
| b86ac8e3 | 13468 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13469 | insn1 |= 58 << 26; /* ld */ |
| 13470 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13471 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13472 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13473 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13474 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13475 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13476 | else |
| 102890f0 AM |
13477 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13478 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13479 | } | |
| 13480 | else | |
| 13481 | { | |
| 13482 | /* LE */ | |
| b86ac8e3 AM |
13483 | insn1 &= 0x1f << 21; |
| 13484 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13485 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13486 | if (tls_gd == 0) | |
| 951fd09b | 13487 | { |
| 102890f0 | 13488 | /* Was an LD reloc. */ |
| 1d483afe AM |
13489 | if (toc_symndx) |
| 13490 | sec = local_sections[toc_symndx]; | |
| 13491 | for (r_symndx = 0; | |
| 13492 | r_symndx < symtab_hdr->sh_info; | |
| 13493 | r_symndx++) | |
| 13494 | if (local_sections[r_symndx] == sec) | |
| 13495 | break; | |
| 13496 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13497 | r_symndx = STN_UNDEF; |
| 102890f0 | 13498 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13499 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13500 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13501 | + sec->output_offset | |
| 13502 | + sec->output_section->vma); | |
| 951fd09b | 13503 | } |
| 102890f0 | 13504 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13505 | { |
| 13506 | r_symndx = toc_symndx; | |
| 13507 | rel->r_addend = toc_addend; | |
| 13508 | } | |
| 102890f0 AM |
13509 | r_type = R_PPC64_TPREL16_HA; |
| 13510 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13511 | if (offset != (bfd_vma) -1) |
| 13512 | { | |
| 13513 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13514 | R_PPC64_TPREL16_LO); | |
| 13515 | rel[1].r_offset = offset + d_offset; | |
| 13516 | rel[1].r_addend = rel->r_addend; | |
| 13517 | } | |
| 102890f0 | 13518 | } |
| 3a71aa26 AM |
13519 | bfd_put_32 (output_bfd, insn1, |
| 13520 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13521 | if (offset != (bfd_vma) -1) |
| 13522 | { | |
| 13523 | insn3 = bfd_get_32 (output_bfd, | |
| 13524 | contents + offset + 4); | |
| 13525 | if (insn3 == NOP | |
| 13526 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13527 | { | |
| 13528 | rel[1].r_offset += 4; | |
| 13529 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13530 | insn2 = NOP; | |
| 13531 | } | |
| 13532 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13533 | } | |
| 13534 | if ((tls_mask & tls_gd) == 0 | |
| 13535 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13536 | { | |
| 13537 | /* We changed the symbol. Start over in order | |
| 13538 | to get h, sym, sec etc. right. */ | |
| 13539 | rel--; | |
| 13540 | continue; | |
| 13541 | } | |
| 13542 | } | |
| 13543 | break; | |
| 13544 | ||
| 13545 | case R_PPC64_TLSGD: | |
| 13546 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13547 | { | |
| 13548 | unsigned int insn2, insn3; | |
| 13549 | bfd_vma offset = rel->r_offset; | |
| 13550 | ||
| 13551 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13552 | { | |
| 13553 | /* IE */ | |
| 13554 | r_type = R_PPC64_NONE; | |
| 13555 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13556 | } | |
| 13557 | else | |
| 13558 | { | |
| 13559 | /* LE */ | |
| 13560 | if (toc_symndx != 0) | |
| 13561 | { | |
| 13562 | r_symndx = toc_symndx; | |
| 13563 | rel->r_addend = toc_addend; | |
| 13564 | } | |
| 13565 | r_type = R_PPC64_TPREL16_LO; | |
| 13566 | rel->r_offset = offset + d_offset; | |
| 13567 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13568 | } | |
| 13569 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13570 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13571 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13572 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13573 | insn3 = bfd_get_32 (output_bfd, |
| 13574 | contents + offset + 4); | |
| 102890f0 AM |
13575 | if (insn3 == NOP |
| 13576 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13577 | { | |
| 727fc41e | 13578 | rel->r_offset += 4; |
| 3a71aa26 AM |
13579 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13580 | insn2 = NOP; | |
| 102890f0 | 13581 | } |
| 102890f0 | 13582 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13583 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| 102890f0 | 13584 | { |
| 102890f0 AM |
13585 | rel--; |
| 13586 | continue; | |
| 411e1bfb | 13587 | } |
| 411e1bfb | 13588 | } |
| 411e1bfb AM |
13589 | break; |
| 13590 | ||
| 727fc41e AM |
13591 | case R_PPC64_TLSLD: |
| 13592 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13593 | { | |
| 13594 | unsigned int insn2, insn3; | |
| 13595 | bfd_vma offset = rel->r_offset; | |
| 13596 | ||
| 13597 | if (toc_symndx) | |
| 13598 | sec = local_sections[toc_symndx]; | |
| 13599 | for (r_symndx = 0; | |
| 13600 | r_symndx < symtab_hdr->sh_info; | |
| 13601 | r_symndx++) | |
| 13602 | if (local_sections[r_symndx] == sec) | |
| 13603 | break; | |
| 13604 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13605 | r_symndx = STN_UNDEF; |
| 727fc41e | 13606 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13607 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13608 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13609 | + sec->output_offset | |
| 13610 | + sec->output_section->vma); | |
| 13611 | ||
| 13612 | r_type = R_PPC64_TPREL16_LO; | |
| 13613 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13614 | rel->r_offset = offset + d_offset; | |
| 13615 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13616 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13617 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13618 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13619 | insn3 = bfd_get_32 (output_bfd, | |
| 13620 | contents + offset + 4); | |
| 13621 | if (insn3 == NOP | |
| 13622 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13623 | { | |
| 13624 | rel->r_offset += 4; | |
| 13625 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13626 | insn2 = NOP; | |
| 13627 | } | |
| 13628 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13629 | rel--; | |
| 13630 | continue; | |
| 13631 | } | |
| 13632 | break; | |
| 13633 | ||
| 411e1bfb | 13634 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13635 | if (rel + 1 < relend |
| 13636 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13637 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13638 | { |
| 951fd09b AM |
13639 | if ((tls_mask & TLS_GD) == 0) |
| 13640 | { | |
| 13641 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13642 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13643 | r_type = R_PPC64_TPREL64; | |
| 13644 | else | |
| 13645 | { | |
| 4ce794b7 | 13646 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13647 | r_type = R_PPC64_NONE; |
| 13648 | } | |
| 13649 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13650 | } | |
| 13651 | } | |
| 13652 | else | |
| 13653 | { | |
| 13654 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13655 | { |
| 4ce794b7 | 13656 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13657 | r_type = R_PPC64_NONE; |
| 951fd09b | 13658 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13659 | } |
| 411e1bfb AM |
13660 | } |
| 13661 | break; | |
| 13662 | ||
| 13663 | case R_PPC64_TPREL64: | |
| 951fd09b | 13664 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13665 | { |
| 13666 | r_type = R_PPC64_NONE; | |
| 13667 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13668 | } | |
| 13669 | break; | |
| 52a82034 AM |
13670 | |
| 13671 | case R_PPC64_REL16_HA: | |
| 13672 | /* If we are generating a non-PIC executable, edit | |
| 13673 | . 0: addis 2,12,.TOC.-0b@ha | |
| 13674 | . addi 2,2,.TOC.-0b@l | |
| 13675 | used by ELFv2 global entry points to set up r2, to | |
| 13676 | . lis 2,.TOC.@ha | |
| 13677 | . addi 2,2,.TOC.@l | |
| 13678 | if .TOC. is in range. */ | |
| 13679 | if (!info->shared | |
| 810d4e75 | 13680 | && !info->traditional_format |
| 52a82034 AM |
13681 | && h != NULL && &h->elf == htab->elf.hgot |
| 13682 | && rel + 1 < relend | |
| 13683 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 13684 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13685 | && rel[1].r_addend == rel->r_addend + 4 | |
| 13686 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13687 | { | |
| 13688 | unsigned int insn1, insn2; | |
| 13689 | bfd_vma offset = rel->r_offset - d_offset; | |
| 13690 | insn1 = bfd_get_32 (output_bfd, contents + offset); | |
| 13691 | insn2 = bfd_get_32 (output_bfd, contents + offset + 4); | |
| 13692 | if ((insn1 & 0xffff0000) == 0x3c4c0000 /* addis 2,12 */ | |
| 13693 | && (insn2 & 0xffff0000) == 0x38420000 /* addi 2,2 */) | |
| 13694 | { | |
| 13695 | r_type = R_PPC64_ADDR16_HA; | |
| 13696 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13697 | rel->r_addend -= d_offset; | |
| 13698 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 13699 | rel[1].r_addend -= d_offset + 4; | |
| 13700 | bfd_put_32 (output_bfd, 0x3c400000, contents + offset); | |
| 13701 | } | |
| 13702 | } | |
| 13703 | break; | |
| 411e1bfb AM |
13704 | } |
| 13705 | ||
| 13706 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13707 | insn = 0; |
| b25116a9 AM |
13708 | max_br_offset = 1 << 25; |
| 13709 | addend = rel->r_addend; | |
| bc30df16 | 13710 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13711 | switch (r_type) |
| 5bd4f169 AM |
13712 | { |
| 13713 | default: | |
| 65f38f15 | 13714 | break; |
| 5bd4f169 | 13715 | |
| 3b421ab3 AM |
13716 | case R_PPC64_TOCSAVE: |
| 13717 | if (relocation + addend == (rel->r_offset | |
| 13718 | + input_section->output_offset | |
| 13719 | + input_section->output_section->vma) | |
| 13720 | && tocsave_find (htab, NO_INSERT, | |
| 13721 | &local_syms, rel, input_bfd)) | |
| 13722 | { | |
| 13723 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13724 | if (insn == NOP | |
| 13725 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
13726 | bfd_put_32 (input_bfd, |
| 13727 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
13728 | contents + rel->r_offset); |
| 13729 | } | |
| 13730 | break; | |
| 13731 | ||
| 65f38f15 AM |
13732 | /* Branch taken prediction relocations. */ |
| 13733 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13734 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13735 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13736 | /* Fall thru. */ | |
| 65f38f15 | 13737 | |
| 86c76c7b | 13738 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13739 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13740 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13741 | insn |= bfd_get_32 (output_bfd, |
| 13742 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13743 | /* Fall thru. */ |
| 86c76c7b | 13744 | |
| b25116a9 AM |
13745 | case R_PPC64_REL14: |
| 13746 | max_br_offset = 1 << 15; | |
| 13747 | /* Fall thru. */ | |
| 5bd4f169 | 13748 | |
| 65f38f15 | 13749 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
13750 | /* Calls to functions with a different TOC, such as calls to |
| 13751 | shared objects, need to alter the TOC pointer. This is | |
| 13752 | done using a linkage stub. A REL24 branching to these | |
| 13753 | linkage stubs needs to be followed by a nop, as the nop | |
| 13754 | will be replaced with an instruction to restore the TOC | |
| 13755 | base pointer. */ | |
| 8387904d | 13756 | fdh = h; |
| b31867b6 AM |
13757 | if (h != NULL |
| 13758 | && h->oh != NULL | |
| 13759 | && h->oh->is_func_descriptor) | |
| 13760 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
13761 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 13762 | htab); | |
| 6abec6bc | 13763 | if (stub_entry != NULL |
| ad8e1ba5 | 13764 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 13765 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
13766 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 13767 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 13768 | { |
| b25116a9 | 13769 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 13770 | |
| ba8ca3e7 AM |
13771 | /* All of these stubs will modify r2, so there must be a |
| 13772 | branch and link followed by a nop. The nop is | |
| 13773 | replaced by an insn to restore r2. */ | |
| eea6121a | 13774 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 13775 | { |
| ba8ca3e7 AM |
13776 | unsigned long br; |
| 13777 | ||
| 13778 | br = bfd_get_32 (input_bfd, | |
| 13779 | contents + rel->r_offset); | |
| 13780 | if ((br & 1) != 0) | |
| 41bd81ab | 13781 | { |
| ba8ca3e7 AM |
13782 | unsigned long nop; |
| 13783 | ||
| 13784 | nop = bfd_get_32 (input_bfd, | |
| 13785 | contents + rel->r_offset + 4); | |
| 13786 | if (nop == NOP | |
| 13787 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 13788 | { |
| ba8ca3e7 AM |
13789 | if (h != NULL |
| 13790 | && (h == htab->tls_get_addr_fd | |
| 13791 | || h == htab->tls_get_addr) | |
| e7d1c40c | 13792 | && !htab->params->no_tls_get_addr_opt) |
| ba8ca3e7 AM |
13793 | { |
| 13794 | /* Special stub used, leave nop alone. */ | |
| 13795 | } | |
| 13796 | else | |
| a078d95a AM |
13797 | bfd_put_32 (input_bfd, |
| 13798 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
13799 | contents + rel->r_offset + 4); |
| 13800 | can_plt_call = TRUE; | |
| a7f2871e | 13801 | } |
| 41bd81ab | 13802 | } |
| 5bd4f169 | 13803 | } |
| 721956f4 | 13804 | |
| ba8ca3e7 | 13805 | if (!can_plt_call && h != NULL) |
| 721956f4 | 13806 | { |
| ba8ca3e7 AM |
13807 | const char *name = h->elf.root.root.string; |
| 13808 | ||
| 13809 | if (*name == '.') | |
| 13810 | ++name; | |
| 13811 | ||
| 13812 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 13813 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 13814 | { |
| ba8ca3e7 AM |
13815 | /* Allow crt1 branch to go via a toc adjusting |
| 13816 | stub. Other calls that never return could do | |
| 13817 | the same, if we could detect such. */ | |
| b25116a9 | 13818 | can_plt_call = TRUE; |
| 6ab189d5 | 13819 | } |
| ba8ca3e7 AM |
13820 | } |
| 13821 | ||
| 13822 | if (!can_plt_call) | |
| 13823 | { | |
| 13824 | /* g++ as of 20130507 emits self-calls without a | |
| 13825 | following nop. This is arguably wrong since we | |
| 13826 | have conflicting information. On the one hand a | |
| 13827 | global symbol and on the other a local call | |
| 13828 | sequence, but don't error for this special case. | |
| 13829 | It isn't possible to cheaply verify we have | |
| 13830 | exactly such a call. Allow all calls to the same | |
| 13831 | section. */ | |
| 13832 | asection *code_sec = sec; | |
| 13833 | ||
| 13834 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 13835 | { |
| ba8ca3e7 AM |
13836 | bfd_vma off = (relocation + addend |
| 13837 | - sec->output_section->vma | |
| 13838 | - sec->output_offset); | |
| bc30df16 | 13839 | |
| ba8ca3e7 | 13840 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 13841 | } |
| ba8ca3e7 AM |
13842 | if (code_sec == input_section) |
| 13843 | can_plt_call = TRUE; | |
| 13844 | } | |
| 13845 | ||
| 13846 | if (!can_plt_call) | |
| 13847 | { | |
| 4805fc55 AM |
13848 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 13849 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13850 | info->callbacks->einfo | |
| 13851 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13852 | "recompile with -fPIC\n"), | |
| 13853 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 13854 | else | |
| 13855 | info->callbacks->einfo | |
| 13856 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13857 | "(-mcmodel=small toc adjust stub)\n"), | |
| 13858 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
13859 | |
| 13860 | bfd_set_error (bfd_error_bad_value); | |
| 13861 | ret = FALSE; | |
| 721956f4 AM |
13862 | } |
| 13863 | ||
| b25116a9 | 13864 | if (can_plt_call |
| 794e51c0 AM |
13865 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 13866 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
13867 | unresolved_reloc = FALSE; |
| 13868 | } | |
| 13869 | ||
| 6abec6bc AM |
13870 | if ((stub_entry == NULL |
| 13871 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 13872 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
13873 | && get_opd_info (sec) != NULL) |
| 13874 | { | |
| 13875 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
13876 | bfd_vma off = (relocation + addend |
| 13877 | - sec->output_section->vma | |
| 13878 | - sec->output_offset); | |
| aef36ac1 | 13879 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
13880 | if (dest != (bfd_vma) -1) |
| 13881 | { | |
| 13882 | relocation = dest; | |
| 13883 | addend = 0; | |
| bc30df16 | 13884 | reloc_dest = DEST_OPD; |
| 8387904d AM |
13885 | } |
| 13886 | } | |
| 13887 | ||
| b25116a9 AM |
13888 | /* If the branch is out of reach we ought to have a long |
| 13889 | branch stub. */ | |
| 13890 | from = (rel->r_offset | |
| 13891 | + input_section->output_offset | |
| 13892 | + input_section->output_section->vma); | |
| 13893 | ||
| 6911b7dc AM |
13894 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 13895 | ? fdh->elf.other | |
| 13896 | : sym->st_other); | |
| 13897 | ||
| 6abec6bc AM |
13898 | if (stub_entry != NULL |
| 13899 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 13900 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 13901 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 13902 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 13903 | || (relocation + addend - from + max_br_offset | |
| 13904 | < 2 * max_br_offset))) | |
| 13905 | /* Don't use the stub if this branch is in range. */ | |
| 13906 | stub_entry = NULL; | |
| b25116a9 AM |
13907 | |
| 13908 | if (stub_entry != NULL) | |
| 13909 | { | |
| 13910 | /* Munge up the value and addend so that we call the stub | |
| 13911 | rather than the procedure directly. */ | |
| 13912 | relocation = (stub_entry->stub_offset | |
| 13913 | + stub_entry->stub_sec->output_offset | |
| 13914 | + stub_entry->stub_sec->output_section->vma); | |
| 13915 | addend = 0; | |
| bc30df16 | 13916 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 13917 | |
| 794e51c0 AM |
13918 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 13919 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13920 | && (ALWAYS_EMIT_R2SAVE | |
| 13921 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
13922 | && rel + 1 < relend |
| 13923 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13924 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 13925 | relocation += 4; | |
| b25116a9 AM |
13926 | } |
| 13927 | ||
| 13928 | if (insn != 0) | |
| 13929 | { | |
| 794e51c0 | 13930 | if (is_isa_v2) |
| 721956f4 | 13931 | { |
| b25116a9 AM |
13932 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 13933 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 13934 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 13935 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 13936 | insn |= 0x02 << 21; | |
| 13937 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 13938 | insn |= 0x08 << 21; | |
| 13939 | else | |
| 13940 | break; | |
| 13941 | } | |
| 13942 | else | |
| 13943 | { | |
| 13944 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 13945 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 13946 | insn ^= 0x01 << 21; |
| 721956f4 | 13947 | } |
| b25116a9 AM |
13948 | |
| 13949 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 13950 | } |
| e86ce104 | 13951 | |
| 06da1e8e AM |
13952 | /* NOP out calls to undefined weak functions. |
| 13953 | We can thus call a weak function without first | |
| 13954 | checking whether the function is defined. */ | |
| b25116a9 | 13955 | else if (h != NULL |
| 039b3fef | 13956 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 13957 | && h->elf.dynindx == -1 |
| b25116a9 AM |
13958 | && r_type == R_PPC64_REL24 |
| 13959 | && relocation == 0 | |
| 4cc603a5 | 13960 | && addend == 0) |
| e86ce104 | 13961 | { |
| 06da1e8e AM |
13962 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 13963 | continue; | |
| e86ce104 | 13964 | } |
| 65f38f15 AM |
13965 | break; |
| 13966 | } | |
| 5bd4f169 | 13967 | |
| 65f38f15 | 13968 | /* Set `addend'. */ |
| 411e1bfb | 13969 | tls_type = 0; |
| 65f38f15 AM |
13970 | switch (r_type) |
| 13971 | { | |
| 13972 | default: | |
| 25f53a85 | 13973 | info->callbacks->einfo |
| bc30df16 | 13974 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 13975 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 13976 | |
| 65f38f15 | 13977 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 13978 | ret = FALSE; |
| 65f38f15 | 13979 | continue; |
| 5bd4f169 | 13980 | |
| 65f38f15 | 13981 | case R_PPC64_NONE: |
| 411e1bfb | 13982 | case R_PPC64_TLS: |
| 727fc41e AM |
13983 | case R_PPC64_TLSGD: |
| 13984 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 13985 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
13986 | case R_PPC64_GNU_VTINHERIT: |
| 13987 | case R_PPC64_GNU_VTENTRY: | |
| 65f38f15 | 13988 | continue; |
| 5bd4f169 AM |
13989 | |
| 13990 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 13991 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 13992 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 13993 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
13994 | case R_PPC64_GOT_TLSGD16: |
| 13995 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13996 | case R_PPC64_GOT_TLSGD16_HI: | |
| 13997 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 13998 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
13999 | goto dogot; |
| 14000 | ||
| 14001 | case R_PPC64_GOT_TLSLD16: | |
| 14002 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14003 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14004 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14005 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14006 | goto dogot; |
| 14007 | ||
| 14008 | case R_PPC64_GOT_TPREL16_DS: | |
| 14009 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14010 | case R_PPC64_GOT_TPREL16_HI: | |
| 14011 | case R_PPC64_GOT_TPREL16_HA: | |
| 14012 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14013 | goto dogot; | |
| 14014 | ||
| 14015 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14016 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14017 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14018 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14019 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14020 | goto dogot; | |
| 14021 | ||
| 65f38f15 AM |
14022 | case R_PPC64_GOT16: |
| 14023 | case R_PPC64_GOT16_LO: | |
| 14024 | case R_PPC64_GOT16_HI: | |
| 14025 | case R_PPC64_GOT16_HA: | |
| 14026 | case R_PPC64_GOT16_DS: | |
| 14027 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14028 | dogot: |
| 5bd4f169 AM |
14029 | { |
| 14030 | /* Relocation is to the entry for this symbol in the global | |
| 14031 | offset table. */ | |
| e717da7e | 14032 | asection *got; |
| d881513a | 14033 | bfd_vma *offp; |
| 5bd4f169 | 14034 | bfd_vma off; |
| d881513a | 14035 | unsigned long indx = 0; |
| 927be08e | 14036 | struct got_entry *ent; |
| 65f38f15 | 14037 | |
| d881513a AM |
14038 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14039 | && (h == NULL | |
| f5385ebf | 14040 | || !h->elf.def_dynamic)) |
| 927be08e | 14041 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14042 | else |
| 5bd4f169 | 14043 | { |
| 5bd4f169 | 14044 | |
| d881513a AM |
14045 | if (h != NULL) |
| 14046 | { | |
| 14047 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 039b3fef AM |
14048 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
| 14049 | &h->elf) | |
| d881513a | 14050 | || (info->shared |
| afe397ea | 14051 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14052 | /* This is actually a static link, or it is a |
| 14053 | -Bsymbolic link and the symbol is defined | |
| 14054 | locally, or the symbol was forced to be local | |
| 14055 | because of a version file. */ | |
| 14056 | ; | |
| 14057 | else | |
| 14058 | { | |
| 14acf4dc | 14059 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14060 | indx = h->elf.dynindx; |
| d881513a AM |
14061 | unresolved_reloc = FALSE; |
| 14062 | } | |
| 039b3fef | 14063 | ent = h->elf.got.glist; |
| d881513a | 14064 | } |
| 411e1bfb | 14065 | else |
| 5bd4f169 | 14066 | { |
| d881513a AM |
14067 | if (local_got_ents == NULL) |
| 14068 | abort (); | |
| 14069 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14070 | } |
| d881513a AM |
14071 | |
| 14072 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14073 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14074 | && ent->owner == input_bfd |
| d881513a AM |
14075 | && ent->tls_type == tls_type) |
| 14076 | break; | |
| 5bd4f169 | 14077 | } |
| 411e1bfb | 14078 | |
| 927be08e AM |
14079 | if (ent == NULL) |
| 14080 | abort (); | |
| 14081 | if (ent->is_indirect) | |
| 14082 | ent = ent->got.ent; | |
| 14083 | offp = &ent->got.offset; | |
| 14084 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14085 | if (got == NULL) |
| 14086 | abort (); | |
| 14087 | ||
| 411e1bfb AM |
14088 | /* The offset must always be a multiple of 8. We use the |
| 14089 | least significant bit to record whether we have already | |
| 14090 | processed this entry. */ | |
| d881513a | 14091 | off = *offp; |
| 411e1bfb AM |
14092 | if ((off & 1) != 0) |
| 14093 | off &= ~1; | |
| 5bd4f169 AM |
14094 | else |
| 14095 | { | |
| 411e1bfb AM |
14096 | /* Generate relocs for the dynamic linker, except in |
| 14097 | the case of TLSLD where we'll use one entry per | |
| 14098 | module. */ | |
| 25f23106 AM |
14099 | asection *relgot; |
| 14100 | bfd_boolean ifunc; | |
| e717da7e | 14101 | |
| d881513a | 14102 | *offp = off | 1; |
| 25f23106 AM |
14103 | relgot = NULL; |
| 14104 | ifunc = (h != NULL | |
| 14105 | ? h->elf.type == STT_GNU_IFUNC | |
| 14106 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14107 | if (ifunc) |
| 33e44f2e | 14108 | relgot = htab->elf.irelplt; |
| 19e08130 AM |
14109 | else if ((info->shared || indx != 0) |
| 14110 | && (h == NULL | |
| 14111 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14112 | && !h->elf.def_dynamic) | |
| 14113 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14114 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14115 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14116 | if (relgot != NULL) |
| 5bd4f169 | 14117 | { |
| e717da7e AM |
14118 | outrel.r_offset = (got->output_section->vma |
| 14119 | + got->output_offset | |
| 411e1bfb | 14120 | + off); |
| 4cc603a5 | 14121 | outrel.r_addend = addend; |
| d881513a | 14122 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14123 | { |
| 411e1bfb | 14124 | outrel.r_addend = 0; |
| e515b051 | 14125 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14126 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14127 | { | |
| e717da7e AM |
14128 | loc = relgot->contents; |
| 14129 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14130 | * sizeof (Elf64_External_Rela)); |
| 14131 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14132 | &outrel, loc); | |
| e515b051 | 14133 | outrel.r_offset += 8; |
| 4cc603a5 | 14134 | outrel.r_addend = addend; |
| d881513a AM |
14135 | outrel.r_info |
| 14136 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14137 | } |
| 411e1bfb | 14138 | } |
| 951fd09b | 14139 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14140 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14141 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14142 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14143 | else if (indx != 0) |
| 14144 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14145 | else | |
| 81407a69 | 14146 | { |
| 25f23106 AM |
14147 | if (ifunc) |
| 14148 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14149 | else | |
| 14150 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14151 | |
| 14152 | /* Write the .got section contents for the sake | |
| 14153 | of prelink. */ | |
| e717da7e | 14154 | loc = got->contents + off; |
| 23fbd6fa JJ |
14155 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14156 | loc); | |
| 81407a69 | 14157 | } |
| 81407a69 AM |
14158 | |
| 14159 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14160 | { |
| 14161 | outrel.r_addend += relocation; | |
| 14162 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14163 | { |
| 14164 | if (htab->elf.tls_sec == NULL) | |
| 14165 | outrel.r_addend = 0; | |
| 14166 | else | |
| 14167 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14168 | } | |
| e515b051 | 14169 | } |
| e717da7e AM |
14170 | loc = relgot->contents; |
| 14171 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14172 | * sizeof (Elf64_External_Rela)); |
| 14173 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14174 | } | |
| 14175 | ||
| ad8e1ba5 | 14176 | /* Init the .got section contents here if we're not |
| 81407a69 | 14177 | emitting a reloc. */ |
| d881513a | 14178 | else |
| 411e1bfb | 14179 | { |
| 4cc603a5 | 14180 | relocation += addend; |
| 7b609f53 AM |
14181 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14182 | relocation = 1; | |
| 14183 | else if (tls_type != 0) | |
| 411e1bfb | 14184 | { |
| 989f9879 AM |
14185 | if (htab->elf.tls_sec == NULL) |
| 14186 | relocation = 0; | |
| 14187 | else | |
| 14188 | { | |
| 14189 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14190 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14191 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14192 | } | |
| 5bd4f169 | 14193 | |
| 7b609f53 AM |
14194 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14195 | { | |
| 14196 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14197 | got->contents + off + 8); |
| 7b609f53 AM |
14198 | relocation = 1; |
| 14199 | } | |
| 411e1bfb | 14200 | } |
| 7b609f53 | 14201 | |
| 411e1bfb | 14202 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14203 | got->contents + off); |
| 5bd4f169 AM |
14204 | } |
| 14205 | } | |
| 14206 | ||
| 65f38f15 AM |
14207 | if (off >= (bfd_vma) -2) |
| 14208 | abort (); | |
| 14209 | ||
| bf102f86 AM |
14210 | relocation = got->output_section->vma + got->output_offset + off; |
| 14211 | addend = -(TOCstart + htab->stub_group[input_section->id].toc_off); | |
| 5bd4f169 | 14212 | } |
| 65f38f15 AM |
14213 | break; |
| 14214 | ||
| 14215 | case R_PPC64_PLT16_HA: | |
| 14216 | case R_PPC64_PLT16_HI: | |
| 14217 | case R_PPC64_PLT16_LO: | |
| 14218 | case R_PPC64_PLT32: | |
| 14219 | case R_PPC64_PLT64: | |
| 14220 | /* Relocation is to the entry for this symbol in the | |
| 14221 | procedure linkage table. */ | |
| 14222 | ||
| 14223 | /* Resolve a PLT reloc against a local symbol directly, | |
| 14224 | without using the procedure linkage table. */ | |
| 14225 | if (h == NULL) | |
| 14226 | break; | |
| 14227 | ||
| 411e1bfb AM |
14228 | /* It's possible that we didn't make a PLT entry for this |
| 14229 | symbol. This happens when statically linking PIC code, | |
| 14230 | or when using -Bsymbolic. Go find a match if there is a | |
| 14231 | PLT entry. */ | |
| 33e44f2e | 14232 | if (htab->elf.splt != NULL) |
| 65f38f15 | 14233 | { |
| 411e1bfb | 14234 | struct plt_entry *ent; |
| 039b3fef | 14235 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
| a345bc8d AM |
14236 | if (ent->plt.offset != (bfd_vma) -1 |
| 14237 | && ent->addend == orig_rel.r_addend) | |
| 411e1bfb | 14238 | { |
| 33e44f2e AM |
14239 | relocation = (htab->elf.splt->output_section->vma |
| 14240 | + htab->elf.splt->output_offset | |
| 411e1bfb AM |
14241 | + ent->plt.offset); |
| 14242 | unresolved_reloc = FALSE; | |
| a345bc8d | 14243 | break; |
| 411e1bfb | 14244 | } |
| 65f38f15 | 14245 | } |
| 65f38f15 | 14246 | break; |
| 5bd4f169 | 14247 | |
| 0b13192e AM |
14248 | case R_PPC64_TOC: |
| 14249 | /* Relocation value is TOC base. */ | |
| 14250 | relocation = TOCstart; | |
| cf35638d | 14251 | if (r_symndx == STN_UNDEF) |
| 0b13192e | 14252 | relocation += htab->stub_group[input_section->id].toc_off; |
| 8517fae7 AM |
14253 | else if (unresolved_reloc) |
| 14254 | ; | |
| 14255 | else if (sec != NULL && sec->id <= htab->top_id) | |
| 0b13192e AM |
14256 | relocation += htab->stub_group[sec->id].toc_off; |
| 14257 | else | |
| 14258 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14259 | goto dodyn; |
| 0b13192e | 14260 | |
| 5bd4f169 AM |
14261 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14262 | which is the address of the start of the TOC plus 0x8000. | |
| 14263 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14264 | in this order. */ | |
| 65f38f15 AM |
14265 | case R_PPC64_TOC16: |
| 14266 | case R_PPC64_TOC16_LO: | |
| 14267 | case R_PPC64_TOC16_HI: | |
| 14268 | case R_PPC64_TOC16_DS: | |
| 14269 | case R_PPC64_TOC16_LO_DS: | |
| 14270 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 14271 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
| 5bd4f169 AM |
14272 | break; |
| 14273 | ||
| 14274 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14275 | case R_PPC64_SECTOFF: |
| 14276 | case R_PPC64_SECTOFF_LO: | |
| 14277 | case R_PPC64_SECTOFF_HI: | |
| 14278 | case R_PPC64_SECTOFF_DS: | |
| 14279 | case R_PPC64_SECTOFF_LO_DS: | |
| 14280 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14281 | if (sec != NULL) |
| 65f38f15 | 14282 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14283 | break; |
| 14284 | ||
| 25f23106 AM |
14285 | case R_PPC64_REL16: |
| 14286 | case R_PPC64_REL16_LO: | |
| 14287 | case R_PPC64_REL16_HI: | |
| 14288 | case R_PPC64_REL16_HA: | |
| 14289 | break; | |
| 14290 | ||
| 721956f4 AM |
14291 | case R_PPC64_REL14: |
| 14292 | case R_PPC64_REL14_BRNTAKEN: | |
| 14293 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14294 | case R_PPC64_REL24: |
| 14295 | break; | |
| 14296 | ||
| 411e1bfb AM |
14297 | case R_PPC64_TPREL16: |
| 14298 | case R_PPC64_TPREL16_LO: | |
| 14299 | case R_PPC64_TPREL16_HI: | |
| 14300 | case R_PPC64_TPREL16_HA: | |
| 14301 | case R_PPC64_TPREL16_DS: | |
| 14302 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14303 | case R_PPC64_TPREL16_HIGH: |
| 14304 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14305 | case R_PPC64_TPREL16_HIGHER: |
| 14306 | case R_PPC64_TPREL16_HIGHERA: | |
| 14307 | case R_PPC64_TPREL16_HIGHEST: | |
| 14308 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14309 | if (h != NULL |
| 14310 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14311 | && h->elf.dynindx == -1) | |
| 14312 | { | |
| 14313 | /* Make this relocation against an undefined weak symbol | |
| 14314 | resolve to zero. This is really just a tweak, since | |
| 14315 | code using weak externs ought to check that they are | |
| 14316 | defined before using them. */ | |
| 14317 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14318 | ||
| 14319 | insn = bfd_get_32 (output_bfd, p); | |
| 14320 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 14321 | if (insn != 0) | |
| 14322 | bfd_put_32 (output_bfd, insn, p); | |
| 14323 | break; | |
| 14324 | } | |
| 989f9879 AM |
14325 | if (htab->elf.tls_sec != NULL) |
| 14326 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14327 | if (info->shared) |
| 14328 | /* The TPREL16 relocs shouldn't really be used in shared | |
| 14329 | libs as they will result in DT_TEXTREL being set, but | |
| 14330 | support them anyway. */ | |
| 14331 | goto dodyn; | |
| 14332 | break; | |
| 14333 | ||
| 14334 | case R_PPC64_DTPREL16: | |
| 14335 | case R_PPC64_DTPREL16_LO: | |
| 14336 | case R_PPC64_DTPREL16_HI: | |
| 14337 | case R_PPC64_DTPREL16_HA: | |
| 14338 | case R_PPC64_DTPREL16_DS: | |
| 14339 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14340 | case R_PPC64_DTPREL16_HIGH: |
| 14341 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14342 | case R_PPC64_DTPREL16_HIGHER: |
| 14343 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14344 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14345 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14346 | if (htab->elf.tls_sec != NULL) |
| 14347 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14348 | break; |
| 14349 | ||
| 45965137 AM |
14350 | case R_PPC64_ADDR64_LOCAL: |
| 14351 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14352 | ? h->elf.other | |
| 14353 | : sym->st_other); | |
| 14354 | break; | |
| 14355 | ||
| e515b051 AM |
14356 | case R_PPC64_DTPMOD64: |
| 14357 | relocation = 1; | |
| 14358 | addend = 0; | |
| 14359 | goto dodyn; | |
| 14360 | ||
| 411e1bfb | 14361 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14362 | if (htab->elf.tls_sec != NULL) |
| 14363 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14364 | goto dodyn; |
| 14365 | ||
| 14366 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14367 | if (htab->elf.tls_sec != NULL) |
| 14368 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14369 | /* Fall thru */ |
| 14370 | ||
| 65f38f15 AM |
14371 | /* Relocations that may need to be propagated if this is a |
| 14372 | dynamic object. */ | |
| 04c9666a | 14373 | case R_PPC64_REL30: |
| 65f38f15 AM |
14374 | case R_PPC64_REL32: |
| 14375 | case R_PPC64_REL64: | |
| 14376 | case R_PPC64_ADDR14: | |
| 14377 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14378 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14379 | case R_PPC64_ADDR16: | |
| 14380 | case R_PPC64_ADDR16_DS: | |
| 14381 | case R_PPC64_ADDR16_HA: | |
| 14382 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14383 | case R_PPC64_ADDR16_HIGH: |
| 14384 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14385 | case R_PPC64_ADDR16_HIGHER: |
| 14386 | case R_PPC64_ADDR16_HIGHERA: | |
| 14387 | case R_PPC64_ADDR16_HIGHEST: | |
| 14388 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14389 | case R_PPC64_ADDR16_LO: | |
| 14390 | case R_PPC64_ADDR16_LO_DS: | |
| 14391 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14392 | case R_PPC64_ADDR32: |
| 14393 | case R_PPC64_ADDR64: | |
| 14394 | case R_PPC64_UADDR16: | |
| 14395 | case R_PPC64_UADDR32: | |
| 14396 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14397 | dodyn: |
| 5d1634d7 | 14398 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14399 | break; |
| 14400 | ||
| 41bd81ab AM |
14401 | if (NO_OPD_RELOCS && is_opd) |
| 14402 | break; | |
| 14403 | ||
| 65f38f15 | 14404 | if ((info->shared |
| 4e795f50 | 14405 | && (h == NULL |
| 039b3fef AM |
14406 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 14407 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 14408 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 14409 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 AM |
14410 | || (ELIMINATE_COPY_RELOCS |
| 14411 | && !info->shared | |
| 65f38f15 | 14412 | && h != NULL |
| 039b3fef | 14413 | && h->elf.dynindx != -1 |
| f5385ebf | 14414 | && !h->elf.non_got_ref |
| 25f23106 AM |
14415 | && !h->elf.def_regular) |
| 14416 | || (!info->shared | |
| 14417 | && (h != NULL | |
| 14418 | ? h->elf.type == STT_GNU_IFUNC | |
| 14419 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 14420 | { |
| b34976b6 | 14421 | bfd_boolean skip, relocate; |
| 65f38f15 | 14422 | asection *sreloc; |
| 1cf1f670 | 14423 | bfd_vma out_off; |
| 65f38f15 AM |
14424 | |
| 14425 | /* When generating a dynamic object, these relocations | |
| 14426 | are copied into the output file to be resolved at run | |
| 14427 | time. */ | |
| 14428 | ||
| b34976b6 AM |
14429 | skip = FALSE; |
| 14430 | relocate = FALSE; | |
| 65f38f15 | 14431 | |
| 1cf1f670 AM |
14432 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14433 | input_section, rel->r_offset); | |
| 14434 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14435 | skip = TRUE; |
| 1cf1f670 | 14436 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14437 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14438 | out_off += (input_section->output_section->vma |
| 14439 | + input_section->output_offset); | |
| 14440 | outrel.r_offset = out_off; | |
| 411e1bfb | 14441 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14442 | |
| 1cf1f670 AM |
14443 | /* Optimize unaligned reloc use. */ |
| 14444 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14445 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14446 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14447 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14448 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14449 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14450 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14451 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14452 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14453 | ||
| 65f38f15 | 14454 | if (skip) |
| 0bb2d96a | 14455 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14456 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14457 | && !is_opd |
| 14458 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14459 | { |
| 14460 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14461 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14462 | } | |
| 65f38f15 AM |
14463 | else |
| 14464 | { | |
| 41bd81ab AM |
14465 | /* This symbol is local, or marked to become local, |
| 14466 | or this is an opd section reloc which must point | |
| 14467 | at a local function. */ | |
| 65f38f15 | 14468 | outrel.r_addend += relocation; |
| e86ce104 | 14469 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14470 | { |
| 3fad3c7c | 14471 | if (is_opd && h != NULL) |
| afbe61cf AM |
14472 | { |
| 14473 | /* Lie about opd entries. This case occurs | |
| 14474 | when building shared libraries and we | |
| 14475 | reference a function in another shared | |
| 3fad3c7c AM |
14476 | lib. The same thing happens for a weak |
| 14477 | definition in an application that's | |
| 14478 | overridden by a strong definition in a | |
| 14479 | shared lib. (I believe this is a generic | |
| 14480 | bug in binutils handling of weak syms.) | |
| 14481 | In these cases we won't use the opd | |
| 1e2f5b6e | 14482 | entry in this lib. */ |
| b34976b6 | 14483 | unresolved_reloc = FALSE; |
| afbe61cf | 14484 | } |
| 25f23106 AM |
14485 | if (!is_opd |
| 14486 | && r_type == R_PPC64_ADDR64 | |
| 14487 | && (h != NULL | |
| 14488 | ? h->elf.type == STT_GNU_IFUNC | |
| 14489 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14490 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14491 | else | |
| 14492 | { | |
| 14493 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14494 | |
| 25f23106 AM |
14495 | /* We need to relocate .opd contents for ld.so. |
| 14496 | Prelink also wants simple and consistent rules | |
| 14497 | for relocs. This make all RELATIVE relocs have | |
| 14498 | *r_offset equal to r_addend. */ | |
| 14499 | relocate = TRUE; | |
| 14500 | } | |
| 65f38f15 AM |
14501 | } |
| 14502 | else | |
| 14503 | { | |
| 14504 | long indx = 0; | |
| 14505 | ||
| 25f23106 AM |
14506 | if (h != NULL |
| 14507 | ? h->elf.type == STT_GNU_IFUNC | |
| 14508 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14509 | { | |
| 25f53a85 | 14510 | info->callbacks->einfo |
| bc30df16 AM |
14511 | (_("%P: %H: %s for indirect " |
| 14512 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14513 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14514 | ppc64_elf_howto_table[r_type]->name, |
| 14515 | sym_name); | |
| 14516 | ret = FALSE; | |
| 14517 | } | |
| cf35638d | 14518 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14519 | ; |
| 14520 | else if (sec == NULL || sec->owner == NULL) | |
| 14521 | { | |
| 14522 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14523 | return FALSE; |
| 65f38f15 AM |
14524 | } |
| 14525 | else | |
| 14526 | { | |
| 14527 | asection *osec; | |
| 14528 | ||
| 14529 | osec = sec->output_section; | |
| 14530 | indx = elf_section_data (osec)->dynindx; | |
| 14531 | ||
| 74541ad4 AM |
14532 | if (indx == 0) |
| 14533 | { | |
| 14534 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14535 | && htab->elf.data_index_section != NULL) | |
| 14536 | osec = htab->elf.data_index_section; | |
| 14537 | else | |
| 14538 | osec = htab->elf.text_index_section; | |
| 14539 | indx = elf_section_data (osec)->dynindx; | |
| 14540 | } | |
| 14541 | BFD_ASSERT (indx != 0); | |
| 14542 | ||
| 65f38f15 AM |
14543 | /* We are turning this relocation into one |
| 14544 | against a section symbol, so subtract out | |
| 14545 | the output section's address but not the | |
| 14546 | offset of the input section in the output | |
| 14547 | section. */ | |
| 14548 | outrel.r_addend -= osec->vma; | |
| 14549 | } | |
| 14550 | ||
| 14551 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14552 | } | |
| 14553 | } | |
| 14554 | ||
| 14555 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14556 | if (h != NULL |
| 14557 | ? h->elf.type == STT_GNU_IFUNC | |
| 14558 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14559 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14560 | if (sreloc == NULL) |
| 14561 | abort (); | |
| 14562 | ||
| dfbb6ac9 AM |
14563 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14564 | >= sreloc->size) | |
| 14565 | abort (); | |
| 947216bf AM |
14566 | loc = sreloc->contents; |
| 14567 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14568 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14569 | ||
| 14570 | /* If this reloc is against an external symbol, it will | |
| 14571 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14572 | anything now. However, for the sake of prelink ensure |
| 14573 | that the section contents are a known value. */ | |
| 65f38f15 | 14574 | if (! relocate) |
| 81407a69 AM |
14575 | { |
| 14576 | unresolved_reloc = FALSE; | |
| 14577 | /* The value chosen here is quite arbitrary as ld.so | |
| 14578 | ignores section contents except for the special | |
| 14579 | case of .opd where the contents might be accessed | |
| 14580 | before relocation. Choose zero, as that won't | |
| 14581 | cause reloc overflow. */ | |
| 14582 | relocation = 0; | |
| 14583 | addend = 0; | |
| 14584 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14585 | to improve backward compatibility with older | |
| 14586 | versions of ld. */ | |
| 14587 | if (r_type == R_PPC64_ADDR64) | |
| 14588 | addend = outrel.r_addend; | |
| 14589 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14590 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14591 | addend = (input_section->output_section->vma |
| 14592 | + input_section->output_offset | |
| 14593 | + rel->r_offset); | |
| 81407a69 | 14594 | } |
| 65f38f15 | 14595 | } |
| 5bd4f169 AM |
14596 | break; |
| 14597 | ||
| 65f38f15 AM |
14598 | case R_PPC64_COPY: |
| 14599 | case R_PPC64_GLOB_DAT: | |
| 14600 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14601 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14602 | case R_PPC64_RELATIVE: |
| 14603 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14604 | files. */ | |
| ae9a127f | 14605 | /* Fall through. */ |
| 65f38f15 AM |
14606 | |
| 14607 | case R_PPC64_PLTGOT16: | |
| 14608 | case R_PPC64_PLTGOT16_DS: | |
| 14609 | case R_PPC64_PLTGOT16_HA: | |
| 14610 | case R_PPC64_PLTGOT16_HI: | |
| 14611 | case R_PPC64_PLTGOT16_LO: | |
| 14612 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14613 | case R_PPC64_PLTREL32: | |
| 14614 | case R_PPC64_PLTREL64: | |
| 14615 | /* These ones haven't been implemented yet. */ | |
| 14616 | ||
| 25f53a85 | 14617 | info->callbacks->einfo |
| bc30df16 | 14618 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14619 | input_bfd, |
| 4ce794b7 | 14620 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14621 | |
| 14622 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14623 | ret = FALSE; |
| 5bd4f169 | 14624 | continue; |
| 65f38f15 | 14625 | } |
| 5bd4f169 | 14626 | |
| 67f0cbdb AM |
14627 | /* Multi-instruction sequences that access the TOC can be |
| 14628 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14629 | to nop; addi rb,r2,x; */ | |
| 14630 | switch (r_type) | |
| 14631 | { | |
| 14632 | default: | |
| 14633 | break; | |
| 14634 | ||
| 14635 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14636 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14637 | case R_PPC64_GOT_TPREL16_HI: | |
| 14638 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14639 | case R_PPC64_GOT16_HI: | |
| 14640 | case R_PPC64_TOC16_HI: | |
| 14641 | /* These relocs would only be useful if building up an | |
| 14642 | offset to later add to r2, perhaps in an indexed | |
| 14643 | addressing mode instruction. Don't try to optimize. | |
| 14644 | Unfortunately, the possibility of someone building up an | |
| 14645 | offset like this or even with the HA relocs, means that | |
| 14646 | we need to check the high insn when optimizing the low | |
| 14647 | insn. */ | |
| 14648 | break; | |
| 14649 | ||
| 14650 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14651 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14652 | case R_PPC64_GOT_TPREL16_HA: | |
| 14653 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14654 | case R_PPC64_GOT16_HA: | |
| 14655 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14656 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14657 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14658 | { |
| 14659 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14660 | bfd_put_32 (input_bfd, NOP, p); | |
| 14661 | } | |
| 67f0cbdb AM |
14662 | break; |
| 14663 | ||
| 14664 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14665 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14666 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14667 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14668 | case R_PPC64_GOT16_LO: | |
| 14669 | case R_PPC64_GOT16_LO_DS: | |
| 14670 | case R_PPC64_TOC16_LO: | |
| 14671 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14672 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14673 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14674 | { |
| 14675 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14676 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14677 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14678 | { | |
| 14679 | /* Transform addic to addi when we change reg. */ | |
| 14680 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14681 | insn |= (14u << 26) | (2 << 16); | |
| 14682 | } | |
| 14683 | else | |
| 67f0cbdb | 14684 | { |
| 98528052 AM |
14685 | insn &= ~(0x1f << 16); |
| 14686 | insn |= 2 << 16; | |
| 67f0cbdb | 14687 | } |
| 560c8763 | 14688 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14689 | } |
| 14690 | break; | |
| 14691 | } | |
| 14692 | ||
| 65f38f15 | 14693 | /* Do any further special processing. */ |
| b80eed39 | 14694 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
14695 | switch (r_type) |
| 14696 | { | |
| 14697 | default: | |
| 14698 | break; | |
| 14699 | ||
| 25f23106 | 14700 | case R_PPC64_REL16_HA: |
| f9c6b907 AM |
14701 | case R_PPC64_ADDR16_HA: |
| 14702 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14703 | case R_PPC64_ADDR16_HIGHERA: |
| 14704 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14705 | case R_PPC64_TOC16_HA: |
| 14706 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14707 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14708 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14709 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14710 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14711 | case R_PPC64_DTPREL16_HA: |
| 14712 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14713 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14714 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14715 | /* It's just possible that this symbol is a weak symbol |
| 14716 | that's not actually defined anywhere. In that case, | |
| 14717 | 'sec' would be NULL, and we should leave the symbol | |
| 14718 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14719 | if (sec == NULL) |
| 14720 | break; | |
| 14721 | /* Fall thru */ | |
| 14722 | ||
| 14723 | case R_PPC64_GOT16_HA: | |
| 14724 | case R_PPC64_PLTGOT16_HA: | |
| 14725 | case R_PPC64_PLT16_HA: | |
| 14726 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14727 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14728 | case R_PPC64_GOT_TPREL16_HA: | |
| 14729 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14730 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 14731 | Bits 0:15 are not used. */ | |
| 14732 | addend += 0x8000; | |
| 65f38f15 AM |
14733 | break; |
| 14734 | ||
| 14735 | case R_PPC64_ADDR16_DS: | |
| 14736 | case R_PPC64_ADDR16_LO_DS: | |
| 14737 | case R_PPC64_GOT16_DS: | |
| 14738 | case R_PPC64_GOT16_LO_DS: | |
| 14739 | case R_PPC64_PLT16_LO_DS: | |
| 14740 | case R_PPC64_SECTOFF_DS: | |
| 14741 | case R_PPC64_SECTOFF_LO_DS: | |
| 14742 | case R_PPC64_TOC16_DS: | |
| 14743 | case R_PPC64_TOC16_LO_DS: | |
| 14744 | case R_PPC64_PLTGOT16_DS: | |
| 14745 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
14746 | case R_PPC64_GOT_TPREL16_DS: |
| 14747 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14748 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14749 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14750 | case R_PPC64_TPREL16_DS: | |
| 14751 | case R_PPC64_TPREL16_LO_DS: | |
| 14752 | case R_PPC64_DTPREL16_DS: | |
| 14753 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
14754 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 14755 | mask = 3; | |
| 14756 | /* If this reloc is against an lq insn, then the value must be | |
| 14757 | a multiple of 16. This is somewhat of a hack, but the | |
| 14758 | "correct" way to do this by defining _DQ forms of all the | |
| 14759 | _DS relocs bloats all reloc switches in this file. It | |
| 14760 | doesn't seem to make much sense to use any of these relocs | |
| 14761 | in data, so testing the insn should be safe. */ | |
| 494dac0c | 14762 | if ((insn & (0x3f << 26)) == (56u << 26)) |
| adadcc0c AM |
14763 | mask = 15; |
| 14764 | if (((relocation + addend) & mask) != 0) | |
| 65f38f15 | 14765 | { |
| 25f53a85 | 14766 | info->callbacks->einfo |
| 8de848d8 | 14767 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 14768 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14769 | howto->name, |
| adadcc0c | 14770 | mask + 1); |
| 65f38f15 | 14771 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14772 | ret = FALSE; |
| 65f38f15 AM |
14773 | continue; |
| 14774 | } | |
| 14775 | break; | |
| 5bd4f169 AM |
14776 | } |
| 14777 | ||
| 239e1f3a AM |
14778 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 14779 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 14780 | not process them. */ | |
| 65f38f15 | 14781 | if (unresolved_reloc |
| 239e1f3a | 14782 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
14783 | && h->elf.def_dynamic) |
| 14784 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 14785 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 14786 | { |
| 25f53a85 | 14787 | info->callbacks->einfo |
| bc30df16 | 14788 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 14789 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14790 | howto->name, |
| 039b3fef | 14791 | h->elf.root.root.string); |
| b34976b6 | 14792 | ret = FALSE; |
| 9c07fe7c | 14793 | } |
| 5bd4f169 | 14794 | |
| b80eed39 AM |
14795 | /* 16-bit fields in insns mostly have signed values, but a |
| 14796 | few insns have 16-bit unsigned values. Really, we should | |
| 14797 | have different reloc types. */ | |
| 14798 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 14799 | && howto->dst_mask == 0xffff | |
| 14800 | && (input_section->flags & SEC_CODE) != 0) | |
| 14801 | { | |
| 14802 | enum complain_overflow complain = complain_overflow_signed; | |
| 14803 | ||
| 14804 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
14805 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 14806 | complain = complain_overflow_bitfield; | |
| 14807 | else if (howto->rightshift == 0 | |
| 14808 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 14809 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 14810 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 14811 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 14812 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 14813 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
14814 | complain = complain_overflow_unsigned; |
| 14815 | if (howto->complain_on_overflow != complain) | |
| 14816 | { | |
| 14817 | alt_howto = *howto; | |
| 14818 | alt_howto.complain_on_overflow = complain; | |
| 14819 | howto = &alt_howto; | |
| 14820 | } | |
| 14821 | } | |
| 14822 | ||
| 14823 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 14824 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 14825 | |
| ef60b7ff | 14826 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 14827 | { |
| bc30df16 | 14828 | char *more_info = NULL; |
| b80eed39 | 14829 | const char *reloc_name = howto->name; |
| bc30df16 AM |
14830 | |
| 14831 | if (reloc_dest != DEST_NORMAL) | |
| 14832 | { | |
| 14833 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 14834 | if (more_info != NULL) | |
| 14835 | { | |
| 14836 | strcpy (more_info, reloc_name); | |
| 14837 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 14838 | ? " (OPD)" : " (stub)")); | |
| 14839 | reloc_name = more_info; | |
| 14840 | } | |
| 14841 | } | |
| 14842 | ||
| cd27b276 | 14843 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 14844 | { |
| 8131c122 AM |
14845 | /* On code like "if (foo) foo();" don't report overflow |
| 14846 | on a branch to zero when foo is undefined. */ | |
| 14847 | if (!warned | |
| 14848 | && (reloc_dest == DEST_STUB | |
| 14849 | || !(h != NULL | |
| 14850 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 14851 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 14852 | && is_branch_reloc (r_type)))) | |
| 5bd4f169 | 14853 | { |
| 8131c122 AM |
14854 | if (!((*info->callbacks->reloc_overflow) |
| 14855 | (info, &h->elf.root, sym_name, | |
| 14856 | reloc_name, orig_rel.r_addend, | |
| 14857 | input_bfd, input_section, rel->r_offset))) | |
| 14858 | return FALSE; | |
| 5bd4f169 | 14859 | } |
| ef60b7ff AM |
14860 | } |
| 14861 | else | |
| 14862 | { | |
| 25f53a85 | 14863 | info->callbacks->einfo |
| bc30df16 | 14864 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 14865 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 14866 | reloc_name, sym_name, (int) r); |
| b34976b6 | 14867 | ret = FALSE; |
| ef60b7ff | 14868 | } |
| bc30df16 AM |
14869 | if (more_info != NULL) |
| 14870 | free (more_info); | |
| 5bd4f169 | 14871 | } |
| 5bd4f169 AM |
14872 | } |
| 14873 | ||
| 645ea6a9 AM |
14874 | /* If we're emitting relocations, then shortly after this function |
| 14875 | returns, reloc offsets and addends for this section will be | |
| 14876 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
14877 | file rather than the input. Save a copy of the relocs for |
| 14878 | opd_entry_value. */ | |
| 4cc603a5 | 14879 | if (is_opd && (info->emitrelocations || info->relocatable)) |
| 8860955f AM |
14880 | { |
| 14881 | bfd_size_type amt; | |
| 14882 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 14883 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
14884 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 14885 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
14886 | if (rel == NULL) |
| 14887 | return FALSE; | |
| 14888 | memcpy (rel, relocs, amt); | |
| 14889 | } | |
| 5bd4f169 AM |
14890 | return ret; |
| 14891 | } | |
| 14892 | ||
| 754021d0 AM |
14893 | /* Adjust the value of any local symbols in opd sections. */ |
| 14894 | ||
| 6e0b88f1 | 14895 | static int |
| 754021d0 AM |
14896 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 14897 | const char *name ATTRIBUTE_UNUSED, | |
| 14898 | Elf_Internal_Sym *elfsym, | |
| 14899 | asection *input_sec, | |
| 14900 | struct elf_link_hash_entry *h) | |
| 14901 | { | |
| 74f0fb50 AM |
14902 | struct _opd_sec_data *opd; |
| 14903 | long adjust; | |
| 754021d0 AM |
14904 | bfd_vma value; |
| 14905 | ||
| 4025353c | 14906 | if (h != NULL) |
| 6e0b88f1 | 14907 | return 1; |
| 4025353c | 14908 | |
| 74f0fb50 AM |
14909 | opd = get_opd_info (input_sec); |
| 14910 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 14911 | return 1; |
| 754021d0 AM |
14912 | |
| 14913 | value = elfsym->st_value - input_sec->output_offset; | |
| 14914 | if (!info->relocatable) | |
| 14915 | value -= input_sec->output_section->vma; | |
| 14916 | ||
| 51aecdc5 | 14917 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 14918 | if (adjust == -1) |
| 6e0b88f1 AM |
14919 | return 2; |
| 14920 | ||
| 14921 | elfsym->st_value += adjust; | |
| 14922 | return 1; | |
| 754021d0 AM |
14923 | } |
| 14924 | ||
| 5bd4f169 AM |
14925 | /* Finish up dynamic symbol handling. We set the contents of various |
| 14926 | dynamic sections here. */ | |
| 14927 | ||
| b34976b6 | 14928 | static bfd_boolean |
| 4ce794b7 AM |
14929 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 14930 | struct bfd_link_info *info, | |
| 14931 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 14932 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 14933 | { |
| 65f38f15 | 14934 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
14935 | struct plt_entry *ent; |
| 14936 | Elf_Internal_Rela rela; | |
| 14937 | bfd_byte *loc; | |
| 5bd4f169 | 14938 | |
| 65f38f15 | 14939 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
14940 | if (htab == NULL) |
| 14941 | return FALSE; | |
| 5bd4f169 | 14942 | |
| 8387904d AM |
14943 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 14944 | if (ent->plt.offset != (bfd_vma) -1) | |
| 14945 | { | |
| 14946 | /* This symbol has an entry in the procedure linkage | |
| 14947 | table. Set it up. */ | |
| e054468f AM |
14948 | if (!htab->elf.dynamic_sections_created |
| 14949 | || h->dynindx == -1) | |
| 14950 | { | |
| 14951 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 14952 | && h->def_regular | |
| 14953 | && (h->root.type == bfd_link_hash_defined | |
| 14954 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
14955 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 14956 | + htab->elf.iplt->output_offset | |
| 25f23106 | 14957 | + ent->plt.offset); |
| ee67d69a AM |
14958 | if (htab->opd_abi) |
| 14959 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 14960 | else | |
| 14961 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
14962 | rela.r_addend = (h->root.u.def.value |
| 14963 | + h->root.u.def.section->output_offset | |
| 14964 | + h->root.u.def.section->output_section->vma | |
| 14965 | + ent->addend); | |
| 33e44f2e AM |
14966 | loc = (htab->elf.irelplt->contents |
| 14967 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 14968 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
14969 | } |
| 14970 | else | |
| 14971 | { | |
| 33e44f2e AM |
14972 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 14973 | + htab->elf.splt->output_offset | |
| 25f23106 | 14974 | + ent->plt.offset); |
| e054468f AM |
14975 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 14976 | rela.r_addend = ent->addend; | |
| 33e44f2e | 14977 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
14978 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 14979 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 14980 | } |
| 8387904d | 14981 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
14982 | |
| 14983 | if (!htab->opd_abi) | |
| 14984 | { | |
| 14985 | if (!h->def_regular) | |
| 14986 | { | |
| 14987 | /* Mark the symbol as undefined, rather than as | |
| 14988 | defined in glink. Leave the value if there were | |
| 14989 | any relocations where pointer equality matters | |
| 14990 | (this is a clue for the dynamic linker, to make | |
| 14991 | function pointer comparisons work between an | |
| 14992 | application and shared library), otherwise set it | |
| 14993 | to zero. */ | |
| 14994 | sym->st_shndx = SHN_UNDEF; | |
| 14995 | if (!h->pointer_equality_needed) | |
| 14996 | sym->st_value = 0; | |
| 14997 | else if (!h->ref_regular_nonweak) | |
| 14998 | { | |
| 14999 | /* This breaks function pointer comparisons, but | |
| 15000 | that is better than breaking tests for a NULL | |
| 15001 | function pointer. */ | |
| 15002 | sym->st_value = 0; | |
| 15003 | } | |
| 15004 | } | |
| 15005 | } | |
| 8387904d | 15006 | } |
| 5bd4f169 | 15007 | |
| f5385ebf | 15008 | if (h->needs_copy) |
| 5bd4f169 | 15009 | { |
| 65f38f15 | 15010 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15011 | |
| 65f38f15 AM |
15012 | if (h->dynindx == -1 |
| 15013 | || (h->root.type != bfd_link_hash_defined | |
| 15014 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15015 | || htab->relbss == NULL) |
| 65f38f15 | 15016 | abort (); |
| 5bd4f169 AM |
15017 | |
| 15018 | rela.r_offset = (h->root.u.def.value | |
| 15019 | + h->root.u.def.section->output_section->vma | |
| 15020 | + h->root.u.def.section->output_offset); | |
| 15021 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15022 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15023 | loc = htab->relbss->contents; |
| 15024 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15025 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15026 | } |
| 15027 | ||
| b34976b6 | 15028 | return TRUE; |
| 5bd4f169 AM |
15029 | } |
| 15030 | ||
| 65f38f15 AM |
15031 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15032 | dynamic linker, before writing them out. */ | |
| 15033 | ||
| 15034 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15035 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15036 | const asection *rel_sec, | |
| 15037 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15038 | { |
| 04c9666a | 15039 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15040 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15041 | ||
| 33e44f2e | 15042 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15043 | return reloc_class_ifunc; |
| a33d1f77 | 15044 | |
| 4ce794b7 | 15045 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15046 | switch (r_type) |
| 65f38f15 AM |
15047 | { |
| 15048 | case R_PPC64_RELATIVE: | |
| 15049 | return reloc_class_relative; | |
| 15050 | case R_PPC64_JMP_SLOT: | |
| 15051 | return reloc_class_plt; | |
| 15052 | case R_PPC64_COPY: | |
| 15053 | return reloc_class_copy; | |
| 15054 | default: | |
| 15055 | return reloc_class_normal; | |
| 15056 | } | |
| 15057 | } | |
| 15058 | ||
| 5bd4f169 AM |
15059 | /* Finish up the dynamic sections. */ |
| 15060 | ||
| b34976b6 | 15061 | static bfd_boolean |
| 4ce794b7 AM |
15062 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15063 | struct bfd_link_info *info) | |
| 5bd4f169 | 15064 | { |
| 65f38f15 AM |
15065 | struct ppc_link_hash_table *htab; |
| 15066 | bfd *dynobj; | |
| 5bd4f169 | 15067 | asection *sdyn; |
| 5bd4f169 | 15068 | |
| 65f38f15 | 15069 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15070 | if (htab == NULL) |
| 15071 | return FALSE; | |
| 15072 | ||
| 65f38f15 | 15073 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15074 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15075 | |
| 65f38f15 | 15076 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15077 | { |
| 5bd4f169 AM |
15078 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15079 | ||
| 33e44f2e | 15080 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15081 | abort (); |
| 5bd4f169 AM |
15082 | |
| 15083 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15084 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15085 | for (; dyncon < dynconend; dyncon++) |
| 15086 | { | |
| 15087 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15088 | asection *s; |
| 5bd4f169 AM |
15089 | |
| 15090 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15091 | ||
| 15092 | switch (dyn.d_tag) | |
| 15093 | { | |
| 65f38f15 AM |
15094 | default: |
| 15095 | continue; | |
| 5bd4f169 | 15096 | |
| 5d1634d7 | 15097 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15098 | s = htab->glink; |
| 6348e046 | 15099 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15100 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15101 | of glink rather than the first entry point, which is | |
| 15102 | what ld.so needs, and now have a bigger stub to | |
| 15103 | support automatic multiple TOCs. */ | |
| b9e5796b | 15104 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15105 | break; |
| 15106 | ||
| 19397422 AM |
15107 | case DT_PPC64_OPD: |
| 15108 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15109 | if (s == NULL) |
| 15110 | continue; | |
| 15111 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15112 | break; |
| 15113 | ||
| e8910a83 AM |
15114 | case DT_PPC64_OPT: |
| 15115 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15116 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15117 | break; | |
| 15118 | ||
| 19397422 AM |
15119 | case DT_PPC64_OPDSZ: |
| 15120 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15121 | if (s == NULL) |
| 15122 | continue; | |
| eea6121a | 15123 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15124 | break; |
| 15125 | ||
| 65f38f15 | 15126 | case DT_PLTGOT: |
| 33e44f2e | 15127 | s = htab->elf.splt; |
| 6348e046 | 15128 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15129 | break; |
| 15130 | ||
| 15131 | case DT_JMPREL: | |
| 33e44f2e | 15132 | s = htab->elf.srelplt; |
| 6348e046 | 15133 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15134 | break; |
| 5bd4f169 | 15135 | |
| 65f38f15 | 15136 | case DT_PLTRELSZ: |
| 33e44f2e | 15137 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 AM |
15138 | break; |
| 15139 | ||
| 15140 | case DT_RELASZ: | |
| 15141 | /* Don't count procedure linkage table relocs in the | |
| 15142 | overall reloc count. */ | |
| 33e44f2e | 15143 | s = htab->elf.srelplt; |
| 6348e046 AM |
15144 | if (s == NULL) |
| 15145 | continue; | |
| eea6121a | 15146 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
15147 | break; |
| 15148 | ||
| 15149 | case DT_RELA: | |
| 15150 | /* We may not be using the standard ELF linker script. | |
| 15151 | If .rela.plt is the first .rela section, we adjust | |
| 15152 | DT_RELA to not include it. */ | |
| 33e44f2e | 15153 | s = htab->elf.srelplt; |
| 6348e046 AM |
15154 | if (s == NULL) |
| 15155 | continue; | |
| 15156 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 15157 | continue; | |
| eea6121a | 15158 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 15159 | break; |
| 5bd4f169 | 15160 | } |
| 5bd4f169 | 15161 | |
| 65f38f15 | 15162 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15163 | } |
| 5bd4f169 AM |
15164 | } |
| 15165 | ||
| 33e44f2e | 15166 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15167 | { |
| 15168 | /* Fill in the first entry in the global offset table. | |
| 15169 | We use it to hold the link-time TOCbase. */ | |
| 15170 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15171 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15172 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15173 | |
| 15174 | /* Set .got entry size. */ | |
| 33e44f2e | 15175 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15176 | } |
| 15177 | ||
| 33e44f2e | 15178 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15179 | { |
| 15180 | /* Set .plt entry size. */ | |
| 33e44f2e | 15181 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15182 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15183 | } |
| 15184 | ||
| 84f5d08e AM |
15185 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15186 | brlt ourselves if emitrelocations. */ | |
| 15187 | if (htab->brlt != NULL | |
| 15188 | && htab->brlt->reloc_count != 0 | |
| 15189 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15190 | htab->brlt, | |
| d4730f92 | 15191 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15192 | elf_section_data (htab->brlt)->relocs, |
| 15193 | NULL)) | |
| 15194 | return FALSE; | |
| 15195 | ||
| 176a0d42 AM |
15196 | if (htab->glink != NULL |
| 15197 | && htab->glink->reloc_count != 0 | |
| 15198 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15199 | htab->glink, | |
| d4730f92 | 15200 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15201 | elf_section_data (htab->glink)->relocs, |
| 15202 | NULL)) | |
| 15203 | return FALSE; | |
| 15204 | ||
| 58d180e8 | 15205 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15206 | && htab->glink_eh_frame->size != 0) |
| 15207 | { | |
| 15208 | bfd_vma val; | |
| 15209 | bfd_byte *p; | |
| 15210 | asection *stub_sec; | |
| 15211 | ||
| 15212 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15213 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15214 | stub_sec != NULL; | |
| 15215 | stub_sec = stub_sec->next) | |
| 15216 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15217 | { | |
| 15218 | /* FDE length. */ | |
| 15219 | p += 4; | |
| 15220 | /* CIE pointer. */ | |
| 15221 | p += 4; | |
| 15222 | /* Offset to stub section. */ | |
| 15223 | val = (stub_sec->output_section->vma | |
| 15224 | + stub_sec->output_offset); | |
| 15225 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15226 | + htab->glink_eh_frame->output_offset | |
| 15227 | + (p - htab->glink_eh_frame->contents)); | |
| 15228 | if (val + 0x80000000 > 0xffffffff) | |
| 15229 | { | |
| 15230 | info->callbacks->einfo | |
| 15231 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15232 | stub_sec->name); | |
| 15233 | return FALSE; | |
| 15234 | } | |
| 15235 | bfd_put_32 (dynobj, val, p); | |
| 15236 | p += 4; | |
| 15237 | /* stub section size. */ | |
| 15238 | p += 4; | |
| 15239 | /* Augmentation. */ | |
| 15240 | p += 1; | |
| 15241 | /* Pad. */ | |
| 15242 | p += 7; | |
| 15243 | } | |
| 15244 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15245 | { | |
| 15246 | /* FDE length. */ | |
| 15247 | p += 4; | |
| 15248 | /* CIE pointer. */ | |
| 15249 | p += 4; | |
| 15250 | /* Offset to .glink. */ | |
| 15251 | val = (htab->glink->output_section->vma | |
| 15252 | + htab->glink->output_offset | |
| 15253 | + 8); | |
| 15254 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15255 | + htab->glink_eh_frame->output_offset | |
| 15256 | + (p - htab->glink_eh_frame->contents)); | |
| 15257 | if (val + 0x80000000 > 0xffffffff) | |
| 15258 | { | |
| 15259 | info->callbacks->einfo | |
| 15260 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15261 | htab->glink->name); | |
| 15262 | return FALSE; | |
| 15263 | } | |
| 15264 | bfd_put_32 (dynobj, val, p); | |
| 15265 | p += 4; | |
| 15266 | /* .glink size. */ | |
| 15267 | p += 4; | |
| 15268 | /* Augmentation. */ | |
| 15269 | p += 1; | |
| 15270 | /* Ops. */ | |
| 15271 | p += 7; | |
| 15272 | } | |
| 15273 | ||
| 15274 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15275 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15276 | htab->glink_eh_frame, | |
| 15277 | htab->glink_eh_frame->contents)) | |
| 15278 | return FALSE; | |
| 15279 | } | |
| 58d180e8 | 15280 | |
| e717da7e | 15281 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15282 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15283 | bfd. */ | |
| c72f2fb2 | 15284 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15285 | { |
| 15286 | asection *s; | |
| 7b53ace3 | 15287 | |
| 0c8d6e5c | 15288 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15289 | continue; |
| 15290 | ||
| e717da7e AM |
15291 | s = ppc64_elf_tdata (dynobj)->got; |
| 15292 | if (s != NULL | |
| eea6121a | 15293 | && s->size != 0 |
| e717da7e AM |
15294 | && s->output_section != bfd_abs_section_ptr |
| 15295 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15296 | s->contents, s->output_offset, | |
| eea6121a | 15297 | s->size)) |
| e717da7e AM |
15298 | return FALSE; |
| 15299 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15300 | if (s != NULL | |
| eea6121a | 15301 | && s->size != 0 |
| e717da7e AM |
15302 | && s->output_section != bfd_abs_section_ptr |
| 15303 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15304 | s->contents, s->output_offset, | |
| eea6121a | 15305 | s->size)) |
| e717da7e AM |
15306 | return FALSE; |
| 15307 | } | |
| f6c52c13 | 15308 | |
| b34976b6 | 15309 | return TRUE; |
| 5bd4f169 AM |
15310 | } |
| 15311 | ||
| 5bd4f169 | 15312 | #include "elf64-target.h" |
| 7b8e7dad AM |
15313 | |
| 15314 | /* FreeBSD support */ | |
| 15315 | ||
| 15316 | #undef TARGET_LITTLE_SYM | |
| 15317 | #undef TARGET_LITTLE_NAME | |
| 15318 | ||
| 15319 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15320 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15321 | #undef TARGET_BIG_NAME |
| 15322 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15323 | ||
| 15324 | #undef ELF_OSABI | |
| 15325 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15326 | ||
| 15327 | #undef elf64_bed | |
| 15328 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15329 | ||
| 15330 | #include "elf64-target.h" | |
| 15331 |