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) | |
| f64b2e8d NC |
4824 | elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; |
| 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); | |
| 6037 | BFD_ASSERT (rh->root.type == bfd_link_hash_defined | |
| 6038 | || rh->root.type == bfd_link_hash_defweak); | |
| 6039 | val = rh->root.u.def.value; | |
| 6040 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6041 | if (sec->owner != opd_bfd) |
| 6042 | { | |
| 6043 | sec = NULL; | |
| 6044 | val = (bfd_vma) -1; | |
| 6045 | } | |
| 6046 | } | |
| 6047 | } | |
| 6048 | ||
| 6049 | if (sec == NULL) | |
| 6050 | { | |
| 6051 | Elf_Internal_Sym *sym; | |
| 6052 | ||
| 6053 | if (symndx < symtab_hdr->sh_info) | |
| 6054 | { | |
| 6055 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6056 | if (sym == NULL) | |
| 6057 | { | |
| 6058 | size_t symcnt = symtab_hdr->sh_info; | |
| 6059 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6060 | symcnt, 0, | |
| 6061 | NULL, NULL, NULL); | |
| 6062 | if (sym == NULL) | |
| 6063 | break; | |
| 6064 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6065 | } | |
| 6066 | sym += symndx; | |
| 128205bb AM |
6067 | } |
| 6068 | else | |
| 6069 | { | |
| b53dfeb2 AM |
6070 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6071 | 1, symndx, | |
| 6072 | NULL, NULL, NULL); | |
| 128205bb AM |
6073 | if (sym == NULL) |
| 6074 | break; | |
| 128205bb | 6075 | } |
| b53dfeb2 AM |
6076 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6077 | if (sec == NULL) | |
| 6078 | break; | |
| 6079 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6080 | val = sym->st_value; | |
| 8387904d | 6081 | } |
| b53dfeb2 | 6082 | |
| 8387904d AM |
6083 | val += look->r_addend; |
| 6084 | if (code_off != NULL) | |
| 6085 | *code_off = val; | |
| 6086 | if (code_sec != NULL) | |
| aef36ac1 AM |
6087 | { |
| 6088 | if (in_code_sec && *code_sec != sec) | |
| 6089 | return -1; | |
| 6090 | else | |
| 6091 | *code_sec = sec; | |
| 6092 | } | |
| b53dfeb2 | 6093 | if (sec->output_section != NULL) |
| 8387904d | 6094 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6095 | } |
| 6096 | break; | |
| 6097 | } | |
| 6098 | } | |
| 645ea6a9 | 6099 | |
| 645ea6a9 | 6100 | return val; |
| 8387904d AM |
6101 | } |
| 6102 | ||
| aef36ac1 AM |
6103 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6104 | function size and set *CODE_OFF to the function's entry point, | |
| 6105 | otherwise return zero. */ | |
| 9f296da3 | 6106 | |
| aef36ac1 AM |
6107 | static bfd_size_type |
| 6108 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6109 | bfd_vma *code_off) | |
| 9f296da3 | 6110 | { |
| aef36ac1 AM |
6111 | bfd_size_type size; |
| 6112 | ||
| 6113 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6114 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6115 | return 0; | |
| 6116 | ||
| 6117 | size = 0; | |
| 6118 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6119 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6120 | ||
| 6121 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6122 | { |
| aef36ac1 AM |
6123 | if (opd_entry_value (sym->section, sym->value, |
| 6124 | &sec, code_off, TRUE) == (bfd_vma) -1) | |
| 6125 | return 0; | |
| 6126 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6127 | symbol. This size has nothing to do with the code size of the | |
| 6128 | function, which is what we're supposed to return, but the | |
| 6129 | code size isn't available without looking up the dot-sym. | |
| 6130 | However, doing that would be a waste of time particularly | |
| 6131 | since elf_find_function will look at the dot-sym anyway. | |
| 6132 | Now, elf_find_function will keep the largest size of any | |
| 6133 | function sym found at the code address of interest, so return | |
| 6134 | 1 here to avoid it incorrectly caching a larger function size | |
| 6135 | for a small function. This does mean we return the wrong | |
| 6136 | size for a new-ABI function of size 24, but all that does is | |
| 6137 | disable caching for such functions. */ | |
| 6138 | if (size == 24) | |
| 6139 | size = 1; | |
| 9f296da3 | 6140 | } |
| aef36ac1 AM |
6141 | else |
| 6142 | { | |
| 6143 | if (sym->section != sec) | |
| 6144 | return 0; | |
| 6145 | *code_off = sym->value; | |
| 6146 | } | |
| 6147 | if (size == 0) | |
| 6148 | size = 1; | |
| 6149 | return size; | |
| 9f296da3 AM |
6150 | } |
| 6151 | ||
| 854b41e7 AM |
6152 | /* Return true if symbol is defined in a regular object file. */ |
| 6153 | ||
| 6154 | static bfd_boolean | |
| 6155 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6156 | { | |
| 6157 | return ((h->root.type == bfd_link_hash_defined | |
| 6158 | || h->root.type == bfd_link_hash_defweak) | |
| 6159 | && h->root.u.def.section != NULL | |
| 6160 | && h->root.u.def.section->output_section != NULL); | |
| 6161 | } | |
| 6162 | ||
| b31867b6 AM |
6163 | /* If FDH is a function descriptor symbol, return the associated code |
| 6164 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6165 | ||
| 6166 | static struct ppc_link_hash_entry * | |
| 6167 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6168 | { | |
| 6169 | if (fdh->is_func_descriptor) | |
| 6170 | { | |
| 6171 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6172 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6173 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6174 | return fh; | |
| 6175 | } | |
| 6176 | return NULL; | |
| 6177 | } | |
| 6178 | ||
| 6179 | /* If FH is a function code entry symbol, return the associated | |
| 6180 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6181 | ||
| 6182 | static struct ppc_link_hash_entry * | |
| 6183 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6184 | { | |
| 6185 | if (fh->oh != NULL | |
| 6186 | && fh->oh->is_func_descriptor) | |
| 6187 | { | |
| 6188 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6189 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6190 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6191 | return fdh; | |
| 6192 | } | |
| 6193 | return NULL; | |
| 6194 | } | |
| 6195 | ||
| 74f0fb50 AM |
6196 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6197 | ||
| 6198 | static void | |
| 6199 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6200 | { | |
| 6201 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6202 | struct bfd_sym_chain *sym; | |
| 6203 | ||
| 4dfe6ac6 NC |
6204 | if (htab == NULL) |
| 6205 | return; | |
| 6206 | ||
| 74f0fb50 AM |
6207 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6208 | { | |
| b31867b6 | 6209 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6210 | asection *sec; |
| 6211 | ||
| 6212 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6213 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6214 | if (eh == NULL) |
| 6215 | continue; | |
| 6216 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6217 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6218 | continue; | |
| 6219 | ||
| b31867b6 AM |
6220 | fh = defined_code_entry (eh); |
| 6221 | if (fh != NULL) | |
| 74f0fb50 | 6222 | { |
| b31867b6 | 6223 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6224 | sec->flags |= SEC_KEEP; |
| 6225 | } | |
| 6226 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6227 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6228 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6229 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6230 | sec->flags |= SEC_KEEP; |
| 6231 | ||
| 6232 | sec = eh->elf.root.u.def.section; | |
| 6233 | sec->flags |= SEC_KEEP; | |
| 6234 | } | |
| 6235 | } | |
| 6236 | ||
| 64d03ab5 AM |
6237 | /* Mark sections containing dynamically referenced symbols. When |
| 6238 | building shared libraries, we must assume that any visible symbol is | |
| 6239 | referenced. */ | |
| 6240 | ||
| 6241 | static bfd_boolean | |
| 6242 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6243 | { | |
| 6244 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6245 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6246 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6247 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6248 | |
| 64d03ab5 | 6249 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6250 | fdh = defined_func_desc (eh); |
| 6251 | if (fdh != NULL) | |
| 6252 | eh = fdh; | |
| 64d03ab5 AM |
6253 | |
| 6254 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6255 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6256 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6257 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6258 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6259 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| b407645f AM |
6260 | && (!info->executable |
| 6261 | || info->export_dynamic | |
| 6262 | || (eh->elf.dynamic | |
| 6263 | && d != NULL | |
| 6264 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6265 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6266 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6267 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6268 | { |
| 6269 | asection *code_sec; | |
| b31867b6 | 6270 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6271 | |
| 6272 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6273 | ||
| 6274 | /* Function descriptor syms cause the associated | |
| 6275 | function code sym section to be marked. */ | |
| b31867b6 AM |
6276 | fh = defined_code_entry (eh); |
| 6277 | if (fh != NULL) | |
| 6278 | { | |
| 6279 | code_sec = fh->elf.root.u.def.section; | |
| 6280 | code_sec->flags |= SEC_KEEP; | |
| 6281 | } | |
| 64d03ab5 AM |
6282 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6283 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6284 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6285 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6286 | code_sec->flags |= SEC_KEEP; |
| 6287 | } | |
| 6288 | ||
| 6289 | return TRUE; | |
| 6290 | } | |
| 6291 | ||
| 5bd4f169 AM |
6292 | /* Return the section that should be marked against GC for a given |
| 6293 | relocation. */ | |
| 6294 | ||
| 6295 | static asection * | |
| 4ce794b7 | 6296 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6297 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6298 | Elf_Internal_Rela *rel, |
| 6299 | struct elf_link_hash_entry *h, | |
| 6300 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6301 | { |
| ccfa59ea AM |
6302 | asection *rsec; |
| 6303 | ||
| ccfa59ea AM |
6304 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6305 | function sections, as all functions are referenced in .opd. */ | |
| 6306 | rsec = NULL; | |
| 6307 | if (get_opd_info (sec) != NULL) | |
| 6308 | return rsec; | |
| 1e2f5b6e | 6309 | |
| 5bd4f169 AM |
6310 | if (h != NULL) |
| 6311 | { | |
| 04c9666a | 6312 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6313 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6314 | |
| 4ce794b7 | 6315 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6316 | switch (r_type) |
| 5bd4f169 AM |
6317 | { |
| 6318 | case R_PPC64_GNU_VTINHERIT: | |
| 6319 | case R_PPC64_GNU_VTENTRY: | |
| 6320 | break; | |
| 6321 | ||
| 6322 | default: | |
| 6323 | switch (h->root.type) | |
| 6324 | { | |
| 6325 | case bfd_link_hash_defined: | |
| 6326 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6327 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6328 | fdh = defined_func_desc (eh); |
| 6329 | if (fdh != NULL) | |
| 6330 | eh = fdh; | |
| 1e2f5b6e AM |
6331 | |
| 6332 | /* Function descriptor syms cause the associated | |
| 6333 | function code sym section to be marked. */ | |
| b31867b6 AM |
6334 | fh = defined_code_entry (eh); |
| 6335 | if (fh != NULL) | |
| ccfa59ea AM |
6336 | { |
| 6337 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6338 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6339 | |
| b31867b6 | 6340 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6341 | } |
| 8387904d AM |
6342 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6343 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6344 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6345 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6346 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6347 | else |
| 1e2f5b6e AM |
6348 | rsec = h->root.u.def.section; |
| 6349 | break; | |
| 5bd4f169 AM |
6350 | |
| 6351 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6352 | rsec = h->root.u.c.p->section; |
| 6353 | break; | |
| 5bd4f169 AM |
6354 | |
| 6355 | default: | |
| fb34365b | 6356 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6357 | } |
| 6358 | } | |
| 6359 | } | |
| 6360 | else | |
| 6361 | { | |
| 74f0fb50 | 6362 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6363 | |
| 6364 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6365 | opd = get_opd_info (rsec); |
| 6366 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6367 | { |
| 74f0fb50 | 6368 | rsec->gc_mark = 1; |
| ccfa59ea | 6369 | |
| 51aecdc5 | 6370 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6371 | } |
| 5bd4f169 AM |
6372 | } |
| 6373 | ||
| 1e2f5b6e | 6374 | return rsec; |
| 5bd4f169 AM |
6375 | } |
| 6376 | ||
| 65f38f15 AM |
6377 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6378 | section being removed. */ | |
| 5bd4f169 | 6379 | |
| b34976b6 | 6380 | static bfd_boolean |
| 4ce794b7 AM |
6381 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6382 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6383 | { |
| 411e1bfb | 6384 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6385 | Elf_Internal_Shdr *symtab_hdr; |
| 6386 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6387 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6388 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6389 | |
| 7dda2462 TG |
6390 | if (info->relocatable) |
| 6391 | return TRUE; | |
| 6392 | ||
| 680a3378 AM |
6393 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6394 | return TRUE; | |
| 6395 | ||
| ec338859 AM |
6396 | elf_section_data (sec)->local_dynrel = NULL; |
| 6397 | ||
| 411e1bfb | 6398 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6399 | if (htab == NULL) |
| 6400 | return FALSE; | |
| 6401 | ||
| 0ffa91dd | 6402 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6403 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6404 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6405 | |
| 6406 | relend = relocs + sec->reloc_count; | |
| 6407 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6408 | { |
| 6409 | unsigned long r_symndx; | |
| 04c9666a | 6410 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6411 | struct elf_link_hash_entry *h = NULL; |
| f961d9dd | 6412 | unsigned char tls_type = 0; |
| 5bd4f169 | 6413 | |
| a33d1f77 | 6414 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6415 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6416 | if (r_symndx >= symtab_hdr->sh_info) |
| 6417 | { | |
| 6418 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6419 | struct elf_dyn_relocs **pp; |
| 6420 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6421 | |
| 6422 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6423 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6424 | eh = (struct ppc_link_hash_entry *) h; |
| 6425 | ||
| 6426 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6427 | if (p->sec == sec) | |
| 6428 | { | |
| 6429 | /* Everything must go for SEC. */ | |
| 6430 | *pp = p->next; | |
| 6431 | break; | |
| 6432 | } | |
| 6433 | } | |
| 6434 | ||
| e054468f AM |
6435 | if (is_branch_reloc (r_type)) |
| 6436 | { | |
| 6437 | struct plt_entry **ifunc = NULL; | |
| 6438 | if (h != NULL) | |
| 6439 | { | |
| 6440 | if (h->type == STT_GNU_IFUNC) | |
| 6441 | ifunc = &h->plt.plist; | |
| 6442 | } | |
| 6443 | else if (local_got_ents != NULL) | |
| 6444 | { | |
| 6445 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6446 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 6447 | unsigned char *local_got_tls_masks = (unsigned char *) |
| e054468f AM |
6448 | (local_plt + symtab_hdr->sh_info); |
| 6449 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6450 | ifunc = local_plt + r_symndx; | |
| 6451 | } | |
| 6452 | if (ifunc != NULL) | |
| 6453 | { | |
| 6454 | struct plt_entry *ent; | |
| 6455 | ||
| 6456 | for (ent = *ifunc; ent != NULL; ent = ent->next) | |
| 6457 | if (ent->addend == rel->r_addend) | |
| 6458 | break; | |
| 6459 | if (ent == NULL) | |
| 6460 | abort (); | |
| 6461 | if (ent->plt.refcount > 0) | |
| 6462 | ent->plt.refcount -= 1; | |
| 6463 | continue; | |
| 6464 | } | |
| 6465 | } | |
| 6466 | ||
| a33d1f77 AM |
6467 | switch (r_type) |
| 6468 | { | |
| 411e1bfb AM |
6469 | case R_PPC64_GOT_TLSLD16: |
| 6470 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6471 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6472 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6473 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6474 | goto dogot; |
| 6475 | ||
| 6476 | case R_PPC64_GOT_TLSGD16: | |
| 6477 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6478 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6479 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6480 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6481 | goto dogot; |
| 6482 | ||
| 6483 | case R_PPC64_GOT_TPREL16_DS: | |
| 6484 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6485 | case R_PPC64_GOT_TPREL16_HI: | |
| 6486 | case R_PPC64_GOT_TPREL16_HA: | |
| 6487 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6488 | goto dogot; | |
| 6489 | ||
| 6490 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6491 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6492 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6493 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6494 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6495 | goto dogot; | |
| 6496 | ||
| a33d1f77 AM |
6497 | case R_PPC64_GOT16: |
| 6498 | case R_PPC64_GOT16_DS: | |
| 6499 | case R_PPC64_GOT16_HA: | |
| 6500 | case R_PPC64_GOT16_HI: | |
| 6501 | case R_PPC64_GOT16_LO: | |
| 6502 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6503 | dogot: |
| 6504 | { | |
| 6505 | struct got_entry *ent; | |
| 6506 | ||
| 58ac9f71 AM |
6507 | if (h != NULL) |
| 6508 | ent = h->got.glist; | |
| 411e1bfb AM |
6509 | else |
| 6510 | ent = local_got_ents[r_symndx]; | |
| 6511 | ||
| 6512 | for (; ent != NULL; ent = ent->next) | |
| 6513 | if (ent->addend == rel->r_addend | |
| e717da7e | 6514 | && ent->owner == abfd |
| 411e1bfb AM |
6515 | && ent->tls_type == tls_type) |
| 6516 | break; | |
| 6517 | if (ent == NULL) | |
| 6518 | abort (); | |
| 6519 | if (ent->got.refcount > 0) | |
| 6520 | ent->got.refcount -= 1; | |
| 6521 | } | |
| a33d1f77 | 6522 | break; |
| 65f38f15 | 6523 | |
| a33d1f77 AM |
6524 | case R_PPC64_PLT16_HA: |
| 6525 | case R_PPC64_PLT16_HI: | |
| 6526 | case R_PPC64_PLT16_LO: | |
| 6527 | case R_PPC64_PLT32: | |
| 6528 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6529 | case R_PPC64_REL14: |
| 6530 | case R_PPC64_REL14_BRNTAKEN: | |
| 6531 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6532 | case R_PPC64_REL24: |
| 58ac9f71 | 6533 | if (h != NULL) |
| 5d1634d7 | 6534 | { |
| 411e1bfb AM |
6535 | struct plt_entry *ent; |
| 6536 | ||
| 411e1bfb AM |
6537 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 6538 | if (ent->addend == rel->r_addend) | |
| 6539 | break; | |
| 7c6c1722 | 6540 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6541 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6542 | } |
| e86ce104 | 6543 | break; |
| 5d1634d7 | 6544 | |
| a33d1f77 AM |
6545 | default: |
| 6546 | break; | |
| 6547 | } | |
| 6548 | } | |
| b34976b6 | 6549 | return TRUE; |
| 5bd4f169 AM |
6550 | } |
| 6551 | ||
| deb0e272 AM |
6552 | /* The maximum size of .sfpr. */ |
| 6553 | #define SFPR_MAX (218*4) | |
| 6554 | ||
| 6555 | struct sfpr_def_parms | |
| 6556 | { | |
| 699733f6 AM |
6557 | const char name[12]; |
| 6558 | unsigned char lo, hi; | |
| deb0e272 AM |
6559 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6560 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6561 | }; | |
| 6562 | ||
| 6563 | /* Auto-generate _save*, _rest* functions in .sfpr. */ | |
| 6564 | ||
| 4dfe6ac6 | 6565 | static bfd_boolean |
| deb0e272 AM |
6566 | sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm) |
| 6567 | { | |
| 6568 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6569 | unsigned int i; | |
| 6570 | size_t len = strlen (parm->name); | |
| 6571 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6572 | char sym[16]; |
| deb0e272 | 6573 | |
| 4dfe6ac6 NC |
6574 | if (htab == NULL) |
| 6575 | return FALSE; | |
| 6576 | ||
| deb0e272 AM |
6577 | memcpy (sym, parm->name, len); |
| 6578 | sym[len + 2] = 0; | |
| 6579 | ||
| 6580 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6581 | { | |
| 6582 | struct elf_link_hash_entry *h; | |
| 6583 | ||
| 6584 | sym[len + 0] = i / 10 + '0'; | |
| 6585 | sym[len + 1] = i % 10 + '0'; | |
| 6586 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
| 6587 | if (h != NULL | |
| f5385ebf | 6588 | && !h->def_regular) |
| deb0e272 AM |
6589 | { |
| 6590 | h->root.type = bfd_link_hash_defined; | |
| 6591 | h->root.u.def.section = htab->sfpr; | |
| 6592 | h->root.u.def.value = htab->sfpr->size; | |
| 6593 | h->type = STT_FUNC; | |
| f5385ebf | 6594 | h->def_regular = 1; |
| deb0e272 AM |
6595 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
| 6596 | writing = TRUE; | |
| 6597 | if (htab->sfpr->contents == NULL) | |
| 6598 | { | |
| 6599 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6600 | if (htab->sfpr->contents == NULL) | |
| 6601 | return FALSE; | |
| 6602 | } | |
| 6603 | } | |
| 6604 | if (writing) | |
| 6605 | { | |
| 6606 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6607 | if (i != parm->hi) | |
| 6608 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6609 | else | |
| 6610 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6611 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6612 | } | |
| 6613 | } | |
| 6614 | ||
| 6615 | return TRUE; | |
| 6616 | } | |
| 6617 | ||
| 6618 | static bfd_byte * | |
| 6619 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6620 | { | |
| 6621 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6622 | return p + 4; | |
| 6623 | } | |
| 6624 | ||
| 6625 | static bfd_byte * | |
| 6626 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6627 | { | |
| 6628 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6629 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6630 | p = p + 4; |
| 6631 | bfd_put_32 (abfd, BLR, p); | |
| 6632 | return p + 4; | |
| 6633 | } | |
| 6634 | ||
| 6635 | static bfd_byte * | |
| 6636 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6637 | { | |
| 6638 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6639 | return p + 4; | |
| 6640 | } | |
| 6641 | ||
| 6642 | static bfd_byte * | |
| 6643 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6644 | { | |
| a078d95a | 6645 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6646 | p = p + 4; |
| 6647 | p = restgpr0 (abfd, p, r); | |
| 6648 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6649 | p = p + 4; | |
| 6650 | if (r == 29) | |
| 6651 | { | |
| 6652 | p = restgpr0 (abfd, p, 30); | |
| 6653 | p = restgpr0 (abfd, p, 31); | |
| 6654 | } | |
| 6655 | bfd_put_32 (abfd, BLR, p); | |
| 6656 | return p + 4; | |
| 6657 | } | |
| 6658 | ||
| 6659 | static bfd_byte * | |
| 6660 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6661 | { | |
| 6662 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6663 | return p + 4; | |
| 6664 | } | |
| 6665 | ||
| 6666 | static bfd_byte * | |
| 6667 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6668 | { | |
| 6669 | p = savegpr1 (abfd, p, r); | |
| 6670 | bfd_put_32 (abfd, BLR, p); | |
| 6671 | return p + 4; | |
| 6672 | } | |
| 6673 | ||
| 6674 | static bfd_byte * | |
| 6675 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6676 | { | |
| 6677 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6678 | return p + 4; | |
| 6679 | } | |
| 6680 | ||
| 6681 | static bfd_byte * | |
| 6682 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6683 | { | |
| 6684 | p = restgpr1 (abfd, p, r); | |
| 6685 | bfd_put_32 (abfd, BLR, p); | |
| 6686 | return p + 4; | |
| 6687 | } | |
| 6688 | ||
| 6689 | static bfd_byte * | |
| 6690 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6691 | { | |
| 6692 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6693 | return p + 4; | |
| 6694 | } | |
| 6695 | ||
| 6696 | static bfd_byte * | |
| 6697 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6698 | { | |
| 6699 | p = savefpr (abfd, p, r); | |
| a078d95a | 6700 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6701 | p = p + 4; |
| 6702 | bfd_put_32 (abfd, BLR, p); | |
| 6703 | return p + 4; | |
| 6704 | } | |
| 6705 | ||
| 6706 | static bfd_byte * | |
| 6707 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6708 | { | |
| 6709 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6710 | return p + 4; | |
| 6711 | } | |
| 6712 | ||
| 6713 | static bfd_byte * | |
| 6714 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6715 | { | |
| a078d95a | 6716 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6717 | p = p + 4; |
| 6718 | p = restfpr (abfd, p, r); | |
| 6719 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6720 | p = p + 4; | |
| 6721 | if (r == 29) | |
| 6722 | { | |
| 6723 | p = restfpr (abfd, p, 30); | |
| 6724 | p = restfpr (abfd, p, 31); | |
| 6725 | } | |
| 6726 | bfd_put_32 (abfd, BLR, p); | |
| 6727 | return p + 4; | |
| 6728 | } | |
| 6729 | ||
| 6730 | static bfd_byte * | |
| 6731 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6732 | { | |
| 6733 | p = savefpr (abfd, p, r); | |
| 6734 | bfd_put_32 (abfd, BLR, p); | |
| 6735 | return p + 4; | |
| 6736 | } | |
| 6737 | ||
| 6738 | static bfd_byte * | |
| 6739 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6740 | { | |
| 6741 | p = restfpr (abfd, p, r); | |
| 6742 | bfd_put_32 (abfd, BLR, p); | |
| 6743 | return p + 4; | |
| 6744 | } | |
| 6745 | ||
| 6746 | static bfd_byte * | |
| 6747 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6748 | { | |
| 6749 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6750 | p = p + 4; | |
| 6751 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6752 | return p + 4; | |
| 6753 | } | |
| 6754 | ||
| 6755 | static bfd_byte * | |
| 6756 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6757 | { | |
| 6758 | p = savevr (abfd, p, r); | |
| 6759 | bfd_put_32 (abfd, BLR, p); | |
| 6760 | return p + 4; | |
| 6761 | } | |
| 6762 | ||
| 6763 | static bfd_byte * | |
| 6764 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6765 | { | |
| 6766 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6767 | p = p + 4; | |
| 6768 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6769 | return p + 4; | |
| 6770 | } | |
| 6771 | ||
| 6772 | static bfd_byte * | |
| 6773 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6774 | { | |
| 6775 | p = restvr (abfd, p, r); | |
| 6776 | bfd_put_32 (abfd, BLR, p); | |
| 6777 | return p + 4; | |
| 6778 | } | |
| 6779 | ||
| e86ce104 AM |
6780 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6781 | information on function code symbol entries to their corresponding | |
| 6782 | function descriptor symbol entries. */ | |
| deb0e272 | 6783 | |
| b34976b6 | 6784 | static bfd_boolean |
| 4ce794b7 | 6785 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6786 | { |
| e86ce104 | 6787 | struct bfd_link_info *info; |
| 65f38f15 | 6788 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6789 | struct plt_entry *ent; |
| 50bc7936 AM |
6790 | struct ppc_link_hash_entry *fh; |
| 6791 | struct ppc_link_hash_entry *fdh; | |
| 6792 | bfd_boolean force_local; | |
| 5bd4f169 | 6793 | |
| 50bc7936 AM |
6794 | fh = (struct ppc_link_hash_entry *) h; |
| 6795 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6796 | return TRUE; |
| e86ce104 | 6797 | |
| 4ce794b7 | 6798 | info = inf; |
| 65f38f15 | 6799 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6800 | if (htab == NULL) |
| 6801 | return FALSE; | |
| 5bd4f169 | 6802 | |
| c09bdfe5 AM |
6803 | /* Resolve undefined references to dot-symbols as the value |
| 6804 | in the function descriptor, if we have one in a regular object. | |
| 6805 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6806 | in dynamic objects are handled elsewhere. */ | |
| 6807 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6808 | && fh->was_undefined | |
| b31867b6 AM |
6809 | && (fdh = defined_func_desc (fh)) != NULL |
| 6810 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6811 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6812 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6813 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6814 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6815 | { |
| b31867b6 | 6816 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6817 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6818 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6819 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6820 | } |
| 6821 | ||
| e86ce104 AM |
6822 | /* If this is a function code symbol, transfer dynamic linking |
| 6823 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6824 | if (!fh->is_func) |
| b34976b6 | 6825 | return TRUE; |
| e86ce104 | 6826 | |
| 50bc7936 | 6827 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6828 | if (ent->plt.refcount > 0) |
| 6829 | break; | |
| 50bc7936 AM |
6830 | if (ent == NULL |
| 6831 | || fh->elf.root.root.string[0] != '.' | |
| 6832 | || fh->elf.root.root.string[1] == '\0') | |
| 6833 | return TRUE; | |
| 5bd4f169 | 6834 | |
| 50bc7936 AM |
6835 | /* Find the corresponding function descriptor symbol. Create it |
| 6836 | as undefined if necessary. */ | |
| 5bd4f169 | 6837 | |
| b31867b6 | 6838 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6839 | if (fdh == NULL |
| df131623 | 6840 | && !info->executable |
| 50bc7936 AM |
6841 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6842 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6843 | { | |
| 908b32fc | 6844 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6845 | if (fdh == NULL) |
| 6846 | return FALSE; | |
| 50bc7936 | 6847 | } |
| 648cca2c | 6848 | |
| 908b32fc | 6849 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6850 | code symbol is strong undefined, make the fake sym the same. |
| 6851 | If the function code symbol is defined, then force the fake | |
| 6852 | descriptor local; We can't support overriding of symbols in a | |
| 6853 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6854 | |
| 6855 | if (fdh != NULL | |
| 6856 | && fdh->fake | |
| 433817dd | 6857 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6858 | { |
| 433817dd AM |
6859 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6860 | { | |
| 6861 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6862 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6863 | } | |
| 6864 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6865 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6866 | { | |
| 6867 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6868 | } | |
| 908b32fc AM |
6869 | } |
| 6870 | ||
| 50bc7936 | 6871 | if (fdh != NULL |
| f5385ebf | 6872 | && !fdh->elf.forced_local |
| df131623 | 6873 | && (!info->executable |
| f5385ebf AM |
6874 | || fdh->elf.def_dynamic |
| 6875 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6876 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6877 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6878 | { | |
| 6879 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 6880 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 6881 | return FALSE; |
| f5385ebf AM |
6882 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6883 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6884 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6885 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 6886 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 6887 | { |
| 40d16e0b | 6888 | move_plt_plist (fh, fdh); |
| f5385ebf | 6889 | fdh->elf.needs_plt = 1; |
| e86ce104 | 6890 | } |
| 50bc7936 | 6891 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
6892 | fdh->oh = fh; |
| 6893 | fh->oh = fdh; | |
| e86ce104 AM |
6894 | } |
| 6895 | ||
| 50bc7936 AM |
6896 | /* Now that the info is on the function descriptor, clear the |
| 6897 | function code sym info. Any function code syms for which we | |
| 6898 | don't have a definition in a regular file, we force local. | |
| 6899 | This prevents a shared library from exporting syms that have | |
| 6900 | been imported from another library. Function code syms that | |
| 6901 | are really in the library we must leave global to prevent the | |
| 6902 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6903 | force_local = (!fh->elf.def_regular |
| 6904 | || fdh == NULL | |
| 6905 | || !fdh->elf.def_regular | |
| 6906 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6907 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6908 | ||
| b34976b6 | 6909 | return TRUE; |
| e86ce104 | 6910 | } |
| 40b8271b | 6911 | |
| e86ce104 | 6912 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6913 | this hook to a) provide some gcc support functions, and b) transfer |
| 6914 | dynamic linking information gathered so far on function code symbol | |
| 6915 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6916 | |
| b34976b6 | 6917 | static bfd_boolean |
| 4ce794b7 AM |
6918 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 6919 | struct bfd_link_info *info) | |
| e86ce104 AM |
6920 | { |
| 6921 | struct ppc_link_hash_table *htab; | |
| 82bd7b59 | 6922 | unsigned int i; |
| 27fc25a1 | 6923 | static const struct sfpr_def_parms funcs[] = |
| deb0e272 AM |
6924 | { |
| 6925 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6926 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6927 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6928 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6929 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6930 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6931 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6932 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6933 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6934 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6935 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6936 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6937 | }; | |
| e86ce104 AM |
6938 | |
| 6939 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6940 | if (htab == NULL) |
| 6941 | return FALSE; | |
| 6942 | ||
| 5295321c AM |
6943 | if (!info->relocatable |
| 6944 | && htab->elf.hgot != NULL) | |
| dba6fa9b AM |
6945 | { |
| 6946 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 6947 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 6948 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 6949 | htab->elf.hgot->type = STT_OBJECT; | |
| 6950 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 6951 | htab->elf.hgot->root.u.def.value = 0; | |
| 6952 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 6953 | htab->elf.hgot->def_regular = 1; | |
| 6954 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) | |
| 6955 | | STV_HIDDEN); | |
| 6956 | } | |
| c66bb0ee | 6957 | |
| 82bd7b59 AM |
6958 | if (htab->sfpr == NULL) |
| 6959 | /* We don't have any relocs. */ | |
| b34976b6 | 6960 | return TRUE; |
| 82bd7b59 | 6961 | |
| deb0e272 AM |
6962 | /* Provide any missing _save* and _rest* functions. */ |
| 6963 | htab->sfpr->size = 0; | |
| 7d4c687d | 6964 | if (htab->params->save_restore_funcs) |
| 27fc25a1 AM |
6965 | for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++) |
| 6966 | if (!sfpr_define (info, &funcs[i])) | |
| 6967 | return FALSE; | |
| 82bd7b59 | 6968 | |
| 4ce794b7 | 6969 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 6970 | |
| eea6121a | 6971 | if (htab->sfpr->size == 0) |
| 8423293d | 6972 | htab->sfpr->flags |= SEC_EXCLUDE; |
| 82bd7b59 | 6973 | |
| b34976b6 | 6974 | return TRUE; |
| e86ce104 AM |
6975 | } |
| 6976 | ||
| a345bc8d AM |
6977 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
| 6978 | ||
| 6979 | static bfd_boolean | |
| 6980 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 6981 | { | |
| 6982 | struct ppc_link_hash_entry *eh; | |
| 6983 | struct elf_dyn_relocs *p; | |
| 6984 | ||
| 6985 | eh = (struct ppc_link_hash_entry *) h; | |
| 6986 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 6987 | { | |
| 6988 | asection *s = p->sec->output_section; | |
| 6989 | ||
| 6990 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 6991 | return TRUE; | |
| 6992 | } | |
| 6993 | return FALSE; | |
| 6994 | } | |
| 6995 | ||
| e86ce104 AM |
6996 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 6997 | regular object. The current definition is in some section of the | |
| 6998 | dynamic object, but we're not including those sections. We have to | |
| 6999 | change the definition to something the rest of the link can | |
| 7000 | understand. */ | |
| 7001 | ||
| b34976b6 | 7002 | static bfd_boolean |
| 4ce794b7 AM |
7003 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7004 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7005 | { |
| 7006 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7007 | asection *s; |
| e86ce104 AM |
7008 | |
| 7009 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7010 | if (htab == NULL) |
| 7011 | return FALSE; | |
| e86ce104 AM |
7012 | |
| 7013 | /* Deal with function syms. */ | |
| 7014 | if (h->type == STT_FUNC | |
| e054468f | 7015 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7016 | || h->needs_plt) |
| e86ce104 AM |
7017 | { |
| 7018 | /* Clear procedure linkage table information for any symbol that | |
| 7019 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7020 | struct plt_entry *ent; |
| 7021 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7022 | if (ent->plt.refcount > 0) | |
| 7023 | break; | |
| 8387904d | 7024 | if (ent == NULL |
| e054468f AM |
7025 | || (h->type != STT_GNU_IFUNC |
| 7026 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7027 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 7028 | && h->root.type == bfd_link_hash_undefweak)))) | |
| 40b8271b | 7029 | { |
| 411e1bfb | 7030 | h->plt.plist = NULL; |
| f5385ebf | 7031 | h->needs_plt = 0; |
| d1eca1e4 | 7032 | h->pointer_equality_needed = 0; |
| 40b8271b | 7033 | } |
| a345bc8d AM |
7034 | else if (abiversion (info->output_bfd) == 2) |
| 7035 | { | |
| d1eca1e4 AM |
7036 | /* Taking a function's address in a read/write section |
| 7037 | doesn't require us to define the function symbol in the | |
| 7038 | executable on a global entry stub. A dynamic reloc can | |
| 7039 | be used instead. */ | |
| 7040 | if (h->pointer_equality_needed | |
| 1009ef28 | 7041 | && h->type != STT_GNU_IFUNC |
| d1eca1e4 AM |
7042 | && !readonly_dynrelocs (h)) |
| 7043 | { | |
| 7044 | h->pointer_equality_needed = 0; | |
| 7045 | h->non_got_ref = 0; | |
| 7046 | } | |
| 7047 | ||
| a345bc8d AM |
7048 | /* After adjust_dynamic_symbol, non_got_ref set in the |
| 7049 | non-shared case means that we have allocated space in | |
| 7050 | .dynbss for the symbol and thus dyn_relocs for this | |
| 7051 | symbol should be discarded. | |
| 7052 | If we get here we know we are making a PLT entry for this | |
| 7053 | symbol, and in an executable we'd normally resolve | |
| 7054 | relocations against this symbol to the PLT entry. Allow | |
| 7055 | dynamic relocs if the reference is weak, and the dynamic | |
| 7056 | relocs will not cause text relocation. */ | |
| d1eca1e4 AM |
7057 | else if (!h->ref_regular_nonweak |
| 7058 | && h->non_got_ref | |
| 7059 | && h->type != STT_GNU_IFUNC | |
| 7060 | && !readonly_dynrelocs (h)) | |
| a345bc8d AM |
7061 | h->non_got_ref = 0; |
| 7062 | ||
| 7063 | /* If making a plt entry, then we don't need copy relocs. */ | |
| 7064 | return TRUE; | |
| 7065 | } | |
| 5bd4f169 | 7066 | } |
| bbd7ec4a | 7067 | else |
| 411e1bfb | 7068 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7069 | |
| 7070 | /* If this is a weak symbol, and there is a real definition, the | |
| 7071 | processor independent code will have arranged for us to see the | |
| 7072 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7073 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7074 | { |
| f6e332e6 AM |
7075 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7076 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7077 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7078 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7079 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7080 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7081 | return TRUE; |
| 5bd4f169 AM |
7082 | } |
| 7083 | ||
| 5bd4f169 AM |
7084 | /* If we are creating a shared library, we must presume that the |
| 7085 | only references to the symbol are via the global offset table. | |
| 7086 | For such cases we need not do anything here; the relocations will | |
| 7087 | be handled correctly by relocate_section. */ | |
| 7088 | if (info->shared) | |
| b34976b6 | 7089 | return TRUE; |
| 5bd4f169 | 7090 | |
| 65f38f15 AM |
7091 | /* If there are no references to this symbol that do not use the |
| 7092 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7093 | if (!h->non_got_ref) |
| b34976b6 | 7094 | return TRUE; |
| 65f38f15 | 7095 | |
| b186458a JJ |
7096 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 7097 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 7098 | return TRUE; | |
| 7099 | ||
| a127494f AM |
7100 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7101 | if (info->nocopyreloc) | |
| 7102 | { | |
| 7103 | h->non_got_ref = 0; | |
| 7104 | return TRUE; | |
| 7105 | } | |
| 7106 | ||
| a345bc8d AM |
7107 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7108 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 7109 | if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h)) | |
| 65f38f15 | 7110 | { |
| a345bc8d AM |
7111 | h->non_got_ref = 0; |
| 7112 | return TRUE; | |
| 65f38f15 AM |
7113 | } |
| 7114 | ||
| a127494f AM |
7115 | /* Protected variables do not work with .dynbss. The copy in |
| 7116 | .dynbss won't be used by the shared library with the protected | |
| 7117 | definition for the variable. Text relocations are preferable | |
| 7118 | to an incorrect program. */ | |
| 7119 | if (h->protected_def) | |
| 7120 | { | |
| 7121 | h->non_got_ref = 0; | |
| 7122 | return TRUE; | |
| 7123 | } | |
| 7124 | ||
| 5d35169e | 7125 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7126 | { |
| 7127 | /* We should never get here, but unfortunately there are versions | |
| 7128 | of gcc out there that improperly (for this ABI) put initialized | |
| 7129 | function pointers, vtable refs and suchlike in read-only | |
| 7130 | sections. Allow them to proceed, but warn that this might | |
| 7131 | break at runtime. */ | |
| 25f53a85 | 7132 | info->callbacks->einfo |
| bc30df16 | 7133 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7134 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7135 | h->root.root.string); |
| 7136 | } | |
| 5d35169e AM |
7137 | |
| 7138 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7139 | is not a function. */ | |
| 7140 | ||
| 5bd4f169 AM |
7141 | /* We must allocate the symbol in our .dynbss section, which will |
| 7142 | become part of the .bss section of the executable. There will be | |
| 7143 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7144 | object will contain position independent code, so all references | |
| 7145 | from the dynamic object to this symbol will go through the global | |
| 7146 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7147 | determine the address it must put in the global offset table, so | |
| 7148 | both the dynamic object and the regular object will refer to the | |
| 7149 | same memory location for the variable. */ | |
| 5bd4f169 | 7150 | |
| 04c9666a AM |
7151 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7152 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7153 | runtime process image. We need to remember the offset into the |
| 7154 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7155 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7156 | { |
| eea6121a | 7157 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7158 | h->needs_copy = 1; |
| 5bd4f169 AM |
7159 | } |
| 7160 | ||
| 4ce794b7 | 7161 | s = htab->dynbss; |
| 5bd4f169 | 7162 | |
| 6cabe1ea | 7163 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7164 | } |
| 7165 | ||
| e86ce104 AM |
7166 | /* If given a function descriptor symbol, hide both the function code |
| 7167 | sym and the descriptor. */ | |
| 7168 | static void | |
| 4ce794b7 AM |
7169 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7170 | struct elf_link_hash_entry *h, | |
| 7171 | bfd_boolean force_local) | |
| e86ce104 | 7172 | { |
| 34814b9f | 7173 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7174 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7175 | ||
| 34814b9f AM |
7176 | eh = (struct ppc_link_hash_entry *) h; |
| 7177 | if (eh->is_func_descriptor) | |
| e86ce104 | 7178 | { |
| 34814b9f | 7179 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7180 | |
| 721956f4 | 7181 | if (fh == NULL) |
| d1329ca3 AM |
7182 | { |
| 7183 | const char *p, *q; | |
| 7184 | struct ppc_link_hash_table *htab; | |
| 7185 | char save; | |
| 7186 | ||
| 7187 | /* We aren't supposed to use alloca in BFD because on | |
| 7188 | systems which do not have alloca the version in libiberty | |
| 7189 | calls xmalloc, which might cause the program to crash | |
| 7190 | when it runs out of memory. This function doesn't have a | |
| 7191 | return status, so there's no way to gracefully return an | |
| 7192 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7193 | accessed; It's either a string in an ELF string table, |
| 7194 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7195 | |
| 34814b9f | 7196 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7197 | save = *p; |
| 7198 | *(char *) p = '.'; | |
| 7199 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7200 | if (htab == NULL) |
| 7201 | return; | |
| 7202 | ||
| 34814b9f AM |
7203 | fh = (struct ppc_link_hash_entry *) |
| 7204 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7205 | *(char *) p = save; |
| 7206 | ||
| 7207 | /* Unfortunately, if it so happens that the string we were | |
| 7208 | looking for was allocated immediately before this string, | |
| 7209 | then we overwrote the string terminator. That's the only | |
| 7210 | reason the lookup should fail. */ | |
| 7211 | if (fh == NULL) | |
| 7212 | { | |
| 34814b9f AM |
7213 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7214 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7215 | --q, --p; |
| 34814b9f AM |
7216 | if (q < eh->elf.root.root.string && *p == '.') |
| 7217 | fh = (struct ppc_link_hash_entry *) | |
| 7218 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7219 | } |
| 7220 | if (fh != NULL) | |
| 7221 | { | |
| 34814b9f AM |
7222 | eh->oh = fh; |
| 7223 | fh->oh = eh; | |
| d1329ca3 AM |
7224 | } |
| 7225 | } | |
| e86ce104 | 7226 | if (fh != NULL) |
| 34814b9f | 7227 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7228 | } |
| 7229 | } | |
| 7230 | ||
| 411e1bfb | 7231 | static bfd_boolean |
| 8843416a AM |
7232 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7233 | Elf_Internal_Sym **symp, | |
| 7234 | asection **symsecp, | |
| f961d9dd | 7235 | unsigned char **tls_maskp, |
| 8843416a AM |
7236 | Elf_Internal_Sym **locsymsp, |
| 7237 | unsigned long r_symndx, | |
| 7238 | bfd *ibfd) | |
| 411e1bfb | 7239 | { |
| 0ffa91dd | 7240 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7241 | |
| 7242 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7243 | { | |
| 7244 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7245 | struct elf_link_hash_entry *h; | |
| 7246 | ||
| 7247 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7248 | h = elf_follow_link (h); |
| 411e1bfb AM |
7249 | |
| 7250 | if (hp != NULL) | |
| 7251 | *hp = h; | |
| 7252 | ||
| 7253 | if (symp != NULL) | |
| 7254 | *symp = NULL; | |
| 7255 | ||
| 7256 | if (symsecp != NULL) | |
| 7257 | { | |
| 7258 | asection *symsec = NULL; | |
| 7259 | if (h->root.type == bfd_link_hash_defined | |
| 7260 | || h->root.type == bfd_link_hash_defweak) | |
| 7261 | symsec = h->root.u.def.section; | |
| 7262 | *symsecp = symsec; | |
| 7263 | } | |
| 7264 | ||
| e7b938ca | 7265 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7266 | { |
| 7267 | struct ppc_link_hash_entry *eh; | |
| 7268 | ||
| 7269 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7270 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7271 | } |
| 7272 | } | |
| 7273 | else | |
| 7274 | { | |
| 7275 | Elf_Internal_Sym *sym; | |
| 7276 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7277 | ||
| 7278 | if (locsyms == NULL) | |
| 7279 | { | |
| 7280 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7281 | if (locsyms == NULL) | |
| 7282 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7283 | symtab_hdr->sh_info, | |
| 7284 | 0, NULL, NULL, NULL); | |
| 7285 | if (locsyms == NULL) | |
| 7286 | return FALSE; | |
| 7287 | *locsymsp = locsyms; | |
| 7288 | } | |
| 7289 | sym = locsyms + r_symndx; | |
| 7290 | ||
| 7291 | if (hp != NULL) | |
| 7292 | *hp = NULL; | |
| 7293 | ||
| 7294 | if (symp != NULL) | |
| 7295 | *symp = sym; | |
| 7296 | ||
| 7297 | if (symsecp != NULL) | |
| cb33740c | 7298 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7299 | |
| e7b938ca | 7300 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7301 | { |
| 7302 | struct got_entry **lgot_ents; | |
| f961d9dd | 7303 | unsigned char *tls_mask; |
| 411e1bfb | 7304 | |
| e7b938ca | 7305 | tls_mask = NULL; |
| 411e1bfb AM |
7306 | lgot_ents = elf_local_got_ents (ibfd); |
| 7307 | if (lgot_ents != NULL) | |
| 7308 | { | |
| e054468f AM |
7309 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7310 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7311 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7312 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7313 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7314 | } |
| e7b938ca | 7315 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7316 | } |
| 7317 | } | |
| 7318 | return TRUE; | |
| 7319 | } | |
| 7320 | ||
| e7b938ca | 7321 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7322 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7323 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7324 | |
| 7325 | static int | |
| f961d9dd | 7326 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7327 | unsigned long *toc_symndx, |
| 7328 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7329 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7330 | const Elf_Internal_Rela *rel, |
| 7331 | bfd *ibfd) | |
| 411e1bfb AM |
7332 | { |
| 7333 | unsigned long r_symndx; | |
| 0d4792f7 | 7334 | int next_r; |
| 411e1bfb AM |
7335 | struct elf_link_hash_entry *h; |
| 7336 | Elf_Internal_Sym *sym; | |
| 7337 | asection *sec; | |
| 7338 | bfd_vma off; | |
| 7339 | ||
| 7340 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7341 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7342 | return 0; |
| 411e1bfb | 7343 | |
| e7b938ca | 7344 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7345 | || sec == NULL |
| 6bee8834 | 7346 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7347 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7348 | return 1; |
| 411e1bfb AM |
7349 | |
| 7350 | /* Look inside a TOC section too. */ | |
| 7351 | if (h != NULL) | |
| 7352 | { | |
| 7353 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7354 | off = h->root.u.def.value; | |
| 7355 | } | |
| 7356 | else | |
| 7357 | off = sym->st_value; | |
| 7358 | off += rel->r_addend; | |
| 7359 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7360 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7361 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7362 | if (toc_symndx != NULL) |
| 7363 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7364 | if (toc_addend != NULL) |
| 7365 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7366 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7367 | return 0; | |
| 854b41e7 | 7368 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7369 | && (next_r == -1 || next_r == -2)) |
| 7370 | return 1 - next_r; | |
| 951fd09b | 7371 | return 1; |
| 411e1bfb AM |
7372 | } |
| 7373 | ||
| 3b421ab3 AM |
7374 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7375 | ||
| 7376 | static struct tocsave_entry * | |
| 7377 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7378 | enum insert_option insert, | |
| 7379 | Elf_Internal_Sym **local_syms, | |
| 7380 | const Elf_Internal_Rela *irela, | |
| 7381 | bfd *ibfd) | |
| 7382 | { | |
| 7383 | unsigned long r_indx; | |
| 7384 | struct elf_link_hash_entry *h; | |
| 7385 | Elf_Internal_Sym *sym; | |
| 7386 | struct tocsave_entry ent, *p; | |
| 7387 | hashval_t hash; | |
| 7388 | struct tocsave_entry **slot; | |
| 7389 | ||
| 7390 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7391 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7392 | return NULL; | |
| 7393 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7394 | { | |
| 7395 | (*_bfd_error_handler) | |
| 7396 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7397 | return NULL; | |
| 7398 | } | |
| 7399 | ||
| 7400 | if (h != NULL) | |
| 7401 | ent.offset = h->root.u.def.value; | |
| 7402 | else | |
| 7403 | ent.offset = sym->st_value; | |
| 7404 | ent.offset += irela->r_addend; | |
| 7405 | ||
| 7406 | hash = tocsave_htab_hash (&ent); | |
| 7407 | slot = ((struct tocsave_entry **) | |
| 7408 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7409 | if (slot == NULL) | |
| 7410 | return NULL; | |
| 7411 | ||
| 7412 | if (*slot == NULL) | |
| 7413 | { | |
| 7414 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7415 | if (p == NULL) | |
| 7416 | return NULL; | |
| 7417 | *p = ent; | |
| 7418 | *slot = p; | |
| 7419 | } | |
| 7420 | return *slot; | |
| 7421 | } | |
| 7422 | ||
| 754021d0 | 7423 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7424 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7425 | |
| 7426 | static bfd_boolean | |
| 7427 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7428 | { | |
| 7429 | struct ppc_link_hash_entry *eh; | |
| 7430 | asection *sym_sec; | |
| 74f0fb50 | 7431 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7432 | |
| 7433 | if (h->root.type == bfd_link_hash_indirect) | |
| 7434 | return TRUE; | |
| 7435 | ||
| 754021d0 AM |
7436 | if (h->root.type != bfd_link_hash_defined |
| 7437 | && h->root.type != bfd_link_hash_defweak) | |
| 7438 | return TRUE; | |
| 7439 | ||
| 7440 | eh = (struct ppc_link_hash_entry *) h; | |
| 7441 | if (eh->adjust_done) | |
| 7442 | return TRUE; | |
| 7443 | ||
| 7444 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7445 | opd = get_opd_info (sym_sec); |
| 7446 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7447 | { |
| 51aecdc5 | 7448 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7449 | if (adjust == -1) |
| 7450 | { | |
| 7451 | /* This entry has been deleted. */ | |
| b3fac117 | 7452 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7453 | if (dsec == NULL) |
| 7454 | { | |
| 7455 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7456 | if (discarded_section (dsec)) |
| 81688140 | 7457 | { |
| b3fac117 | 7458 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7459 | break; |
| 7460 | } | |
| 7461 | } | |
| 4025353c | 7462 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7463 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7464 | } |
| 7465 | else | |
| 7466 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7467 | eh->adjust_done = 1; |
| 7468 | } | |
| 7469 | return TRUE; | |
| 7470 | } | |
| 7471 | ||
| 8c1d1bb8 | 7472 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7473 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7474 | have already been determined. */ |
| 7475 | ||
| 7476 | static bfd_boolean | |
| 7477 | dec_dynrel_count (bfd_vma r_info, | |
| 7478 | asection *sec, | |
| 7479 | struct bfd_link_info *info, | |
| 7480 | Elf_Internal_Sym **local_syms, | |
| 7481 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7482 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7483 | { |
| 7484 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7485 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7486 | |
| 7487 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7488 | should be kept in sync with the code in check_relocs. */ | |
| 7489 | r_type = ELF64_R_TYPE (r_info); | |
| 7490 | switch (r_type) | |
| 7491 | { | |
| 7492 | default: | |
| 7493 | return TRUE; | |
| 7494 | ||
| 7495 | case R_PPC64_TPREL16: | |
| 7496 | case R_PPC64_TPREL16_LO: | |
| 7497 | case R_PPC64_TPREL16_HI: | |
| 7498 | case R_PPC64_TPREL16_HA: | |
| 7499 | case R_PPC64_TPREL16_DS: | |
| 7500 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7501 | case R_PPC64_TPREL16_HIGH: |
| 7502 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7503 | case R_PPC64_TPREL16_HIGHER: |
| 7504 | case R_PPC64_TPREL16_HIGHERA: | |
| 7505 | case R_PPC64_TPREL16_HIGHEST: | |
| 7506 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7507 | if (!info->shared) | |
| 7508 | return TRUE; | |
| 7509 | ||
| 7510 | case R_PPC64_TPREL64: | |
| 7511 | case R_PPC64_DTPMOD64: | |
| 7512 | case R_PPC64_DTPREL64: | |
| 7513 | case R_PPC64_ADDR64: | |
| 7514 | case R_PPC64_REL30: | |
| 7515 | case R_PPC64_REL32: | |
| 7516 | case R_PPC64_REL64: | |
| 7517 | case R_PPC64_ADDR14: | |
| 7518 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7519 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7520 | case R_PPC64_ADDR16: | |
| 7521 | case R_PPC64_ADDR16_DS: | |
| 7522 | case R_PPC64_ADDR16_HA: | |
| 7523 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7524 | case R_PPC64_ADDR16_HIGH: |
| 7525 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7526 | case R_PPC64_ADDR16_HIGHER: |
| 7527 | case R_PPC64_ADDR16_HIGHERA: | |
| 7528 | case R_PPC64_ADDR16_HIGHEST: | |
| 7529 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7530 | case R_PPC64_ADDR16_LO: | |
| 7531 | case R_PPC64_ADDR16_LO_DS: | |
| 7532 | case R_PPC64_ADDR24: | |
| 7533 | case R_PPC64_ADDR32: | |
| 7534 | case R_PPC64_UADDR16: | |
| 7535 | case R_PPC64_UADDR32: | |
| 7536 | case R_PPC64_UADDR64: | |
| 7537 | case R_PPC64_TOC: | |
| 7538 | break; | |
| 7539 | } | |
| 7540 | ||
| 7541 | if (local_syms != NULL) | |
| 7542 | { | |
| 7543 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7544 | bfd *ibfd = sec->owner; |
| 7545 | ||
| 7546 | r_symndx = ELF64_R_SYM (r_info); | |
| 7547 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7548 | return FALSE; | |
| 7549 | } | |
| 7550 | ||
| 7551 | if ((info->shared | |
| 1d483afe | 7552 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7553 | || (h != NULL |
| 198f1157 | 7554 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7555 | || h->root.type == bfd_link_hash_defweak |
| 7556 | || !h->def_regular)))) | |
| 7557 | || (ELIMINATE_COPY_RELOCS | |
| 7558 | && !info->shared | |
| 7559 | && h != NULL | |
| 7560 | && (h->root.type == bfd_link_hash_defweak | |
| 7561 | || !h->def_regular))) | |
| 7562 | ; | |
| 7563 | else | |
| 7564 | return TRUE; | |
| 7565 | ||
| 7566 | if (h != NULL) | |
| 6edfbbad | 7567 | { |
| 19e08130 AM |
7568 | struct elf_dyn_relocs *p; |
| 7569 | struct elf_dyn_relocs **pp; | |
| 7570 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7571 | ||
| 7572 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7573 | with local syms for a given section. Also, symbol flags are | |
| 7574 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7575 | report a dynreloc miscount. */ | |
| 7576 | if (*pp == NULL && info->gc_sections) | |
| 7577 | return TRUE; | |
| 7578 | ||
| 7579 | while ((p = *pp) != NULL) | |
| 60124e18 | 7580 | { |
| 19e08130 AM |
7581 | if (p->sec == sec) |
| 7582 | { | |
| 7583 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7584 | p->pc_count -= 1; | |
| 7585 | p->count -= 1; | |
| 7586 | if (p->count == 0) | |
| 7587 | *pp = p->next; | |
| 7588 | return TRUE; | |
| 7589 | } | |
| 7590 | pp = &p->next; | |
| 60124e18 | 7591 | } |
| 6edfbbad | 7592 | } |
| 19e08130 AM |
7593 | else |
| 7594 | { | |
| 7595 | struct ppc_dyn_relocs *p; | |
| 7596 | struct ppc_dyn_relocs **pp; | |
| 7597 | void *vpp; | |
| 7598 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7599 | |
| 19e08130 AM |
7600 | if (local_syms == NULL) |
| 7601 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7602 | if (sym_sec == NULL) | |
| 7603 | sym_sec = sec; | |
| c57da1a7 | 7604 | |
| 19e08130 AM |
7605 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7606 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7607 | ||
| 7608 | if (*pp == NULL && info->gc_sections) | |
| 7609 | return TRUE; | |
| 7610 | ||
| 7611 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7612 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7613 | { |
| 19e08130 AM |
7614 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7615 | { | |
| 7616 | p->count -= 1; | |
| 7617 | if (p->count == 0) | |
| 7618 | *pp = p->next; | |
| 7619 | return TRUE; | |
| 7620 | } | |
| 7621 | pp = &p->next; | |
| 8c1d1bb8 | 7622 | } |
| 8c1d1bb8 AM |
7623 | } |
| 7624 | ||
| 8de848d8 | 7625 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7626 | sec->owner, sec); |
| 8c1d1bb8 AM |
7627 | bfd_set_error (bfd_error_bad_value); |
| 7628 | return FALSE; | |
| 7629 | } | |
| 7630 | ||
| 754021d0 AM |
7631 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7632 | only remove those associated with functions in discarded link-once | |
| 7633 | sections, or weakly defined functions that have been overridden. It | |
| 7634 | would be possible to remove many more entries for statically linked | |
| 7635 | applications. */ | |
| 7636 | ||
| b34976b6 | 7637 | bfd_boolean |
| e7d1c40c | 7638 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7639 | { |
| 7640 | bfd *ibfd; | |
| 754021d0 | 7641 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7642 | asection *need_pad = NULL; |
| e7d1c40c AM |
7643 | struct ppc_link_hash_table *htab; |
| 7644 | ||
| 7645 | htab = ppc_hash_table (info); | |
| 7646 | if (htab == NULL) | |
| 7647 | return FALSE; | |
| 1e2f5b6e | 7648 | |
| c72f2fb2 | 7649 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7650 | { |
| 7651 | asection *sec; | |
| 7652 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7653 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7654 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7655 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7656 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7657 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7658 | |
| 854b41e7 AM |
7659 | if (!is_ppc64_elf (ibfd)) |
| 7660 | continue; | |
| 7661 | ||
| 1e2f5b6e | 7662 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7663 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7664 | continue; |
| 7665 | ||
| dbaa2011 | 7666 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7667 | continue; |
| 7668 | ||
| 1e2f5b6e AM |
7669 | if (sec->output_section == bfd_abs_section_ptr) |
| 7670 | continue; | |
| 7671 | ||
| 7672 | /* Look through the section relocs. */ | |
| 7673 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7674 | continue; | |
| 7675 | ||
| 6cdc0ccc | 7676 | local_syms = NULL; |
| 0ffa91dd | 7677 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7678 | |
| 7679 | /* Read the relocations. */ | |
| 4ce794b7 | 7680 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7681 | info->keep_memory); |
| 1e2f5b6e | 7682 | if (relstart == NULL) |
| b34976b6 | 7683 | return FALSE; |
| 1e2f5b6e AM |
7684 | |
| 7685 | /* First run through the relocs to check they are sane, and to | |
| 7686 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7687 | need_edit = FALSE; |
| 51aecdc5 | 7688 | broken = FALSE; |
| 3f764659 | 7689 | need_pad = sec; |
| 1e2f5b6e | 7690 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7691 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7692 | { |
| 04c9666a | 7693 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7694 | unsigned long r_symndx; |
| 7695 | asection *sym_sec; | |
| 7696 | struct elf_link_hash_entry *h; | |
| 7697 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7698 | bfd_vma offset; |
| 1e2f5b6e | 7699 | |
| 51aecdc5 | 7700 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7701 | only interested in the reloc pointing to a function entry |
| 7702 | point. */ | |
| 51aecdc5 AM |
7703 | offset = rel->r_offset; |
| 7704 | if (rel + 1 == relend | |
| 7705 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7706 | { |
| 7707 | /* If someone messes with .opd alignment then after a | |
| 7708 | "ld -r" we might have padding in the middle of .opd. | |
| 7709 | Also, there's nothing to prevent someone putting | |
| 7710 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7711 | optimization for them! */ |
| 3f764659 | 7712 | broken_opd: |
| 1e2f5b6e | 7713 | (*_bfd_error_handler) |
| d003868e | 7714 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7715 | broken = TRUE; |
| 1e2f5b6e AM |
7716 | break; |
| 7717 | } | |
| 7718 | ||
| 50bc7936 AM |
7719 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7720 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7721 | { | |
| 7722 | (*_bfd_error_handler) | |
| d003868e AM |
7723 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7724 | ibfd, r_type); | |
| 51aecdc5 | 7725 | broken = TRUE; |
| 50bc7936 AM |
7726 | break; |
| 7727 | } | |
| 7728 | ||
| 1e2f5b6e | 7729 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7730 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7731 | r_symndx, ibfd)) | |
| 50bc7936 | 7732 | goto error_ret; |
| 1e2f5b6e AM |
7733 | |
| 7734 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7735 | { | |
| 411e1bfb AM |
7736 | const char *sym_name; |
| 7737 | if (h != NULL) | |
| 7738 | sym_name = h->root.root.string; | |
| 7739 | else | |
| 26c61ae5 L |
7740 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7741 | sym_sec); | |
| 411e1bfb | 7742 | |
| 1e2f5b6e | 7743 | (*_bfd_error_handler) |
| d003868e AM |
7744 | (_("%B: undefined sym `%s' in .opd section"), |
| 7745 | ibfd, sym_name); | |
| 51aecdc5 | 7746 | broken = TRUE; |
| 1e2f5b6e AM |
7747 | break; |
| 7748 | } | |
| 7749 | ||
| 51020317 AM |
7750 | /* opd entries are always for functions defined in the |
| 7751 | current input bfd. If the symbol isn't defined in the | |
| 7752 | input bfd, then we won't be using the function in this | |
| 7753 | bfd; It must be defined in a linkonce section in another | |
| 7754 | bfd, or is weak. It's also possible that we are | |
| 7755 | discarding the function due to a linker script /DISCARD/, | |
| 7756 | which we test for via the output_section. */ | |
| 7757 | if (sym_sec->owner != ibfd | |
| 7758 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7759 | need_edit = TRUE; |
| 1e2f5b6e | 7760 | |
| 50bc7936 | 7761 | rel += 2; |
| 51aecdc5 AM |
7762 | if (rel + 1 == relend |
| 7763 | || (rel + 2 < relend | |
| 7764 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7765 | ++rel; | |
| 7766 | ||
| 7767 | if (rel == relend) | |
| 3f764659 JJ |
7768 | { |
| 7769 | if (sec->size == offset + 24) | |
| 7770 | { | |
| 7771 | need_pad = NULL; | |
| 7772 | break; | |
| 7773 | } | |
| 51aecdc5 | 7774 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7775 | { |
| 7776 | cnt_16b++; | |
| 7777 | break; | |
| 7778 | } | |
| 7779 | goto broken_opd; | |
| 7780 | } | |
| 3f764659 JJ |
7781 | else if (rel + 1 < relend |
| 7782 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7783 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7784 | { | |
| 51aecdc5 AM |
7785 | if (rel[0].r_offset == offset + 16) |
| 7786 | cnt_16b++; | |
| 7787 | else if (rel[0].r_offset != offset + 24) | |
| 7788 | goto broken_opd; | |
| 3f764659 JJ |
7789 | } |
| 7790 | else | |
| 7791 | goto broken_opd; | |
| 1e2f5b6e AM |
7792 | } |
| 7793 | ||
| e7d1c40c | 7794 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7795 | |
| 51aecdc5 | 7796 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7797 | { |
| 7798 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7799 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7800 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7801 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7802 | bfd_size_type amt; |
| 7803 | ||
| 983bddc8 | 7804 | new_contents = NULL; |
| 51aecdc5 | 7805 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7806 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7807 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7808 | if (opd->adjust == NULL) |
| 7809 | return FALSE; | |
| 7810 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7811 | |
| 7812 | /* This seems a waste of time as input .opd sections are all | |
| 7813 | zeros as generated by gcc, but I suppose there's no reason | |
| 7814 | this will always be so. We might start putting something in | |
| 7815 | the third word of .opd entries. */ | |
| 7816 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7817 | { | |
| eea6121a AM |
7818 | bfd_byte *loc; |
| 7819 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7820 | { |
| eea6121a AM |
7821 | if (loc != NULL) |
| 7822 | free (loc); | |
| 50bc7936 | 7823 | error_ret: |
| 6cdc0ccc AM |
7824 | if (local_syms != NULL |
| 7825 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7826 | free (local_syms); | |
| 6cdc0ccc AM |
7827 | if (elf_section_data (sec)->relocs != relstart) |
| 7828 | free (relstart); | |
| b34976b6 | 7829 | return FALSE; |
| 6cdc0ccc | 7830 | } |
| 1e2f5b6e AM |
7831 | sec->contents = loc; |
| 7832 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7833 | } | |
| 7834 | ||
| 7835 | elf_section_data (sec)->relocs = relstart; | |
| 7836 | ||
| 3f764659 | 7837 | new_contents = sec->contents; |
| 3f764659 JJ |
7838 | if (add_aux_fields) |
| 7839 | { | |
| 7840 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7841 | if (new_contents == NULL) | |
| 7842 | return FALSE; | |
| 51aecdc5 | 7843 | need_pad = NULL; |
| 3f764659 | 7844 | } |
| b4f4e59f AM |
7845 | wptr = new_contents; |
| 7846 | rptr = sec->contents; | |
| 1e2f5b6e | 7847 | write_rel = relstart; |
| 51aecdc5 | 7848 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7849 | { |
| 50bc7936 AM |
7850 | unsigned long r_symndx; |
| 7851 | asection *sym_sec; | |
| 7852 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7853 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7854 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7855 | long opd_ent_size; |
| 7856 | Elf_Internal_Rela *next_rel; | |
| 7857 | bfd_boolean skip; | |
| 50bc7936 AM |
7858 | |
| 7859 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7860 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7861 | r_symndx, ibfd)) |
| 50bc7936 AM |
7862 | goto error_ret; |
| 7863 | ||
| 51aecdc5 AM |
7864 | next_rel = rel + 2; |
| 7865 | if (next_rel + 1 == relend | |
| 7866 | || (next_rel + 2 < relend | |
| 7867 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 7868 | ++next_rel; | |
| 7869 | ||
| 7870 | /* See if the .opd entry is full 24 byte or | |
| 7871 | 16 byte (with fd_aux entry overlapped with next | |
| 7872 | fd_func). */ | |
| 7873 | opd_ent_size = 24; | |
| 7874 | if (next_rel == relend) | |
| 1e2f5b6e | 7875 | { |
| 51aecdc5 | 7876 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 7877 | opd_ent_size = 16; |
| 51aecdc5 AM |
7878 | } |
| 7879 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 7880 | opd_ent_size = 16; | |
| 3f764659 | 7881 | |
| 51aecdc5 AM |
7882 | if (h != NULL |
| 7883 | && h->root.root.string[0] == '.') | |
| 7884 | { | |
| 7885 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab); | |
| 7886 | if (fdh != NULL | |
| 7887 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 7888 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 7889 | fdh = NULL; | |
| 7890 | } | |
| 1e2f5b6e | 7891 | |
| 51aecdc5 AM |
7892 | skip = (sym_sec->owner != ibfd |
| 7893 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 7894 | if (skip) | |
| 7895 | { | |
| 7896 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 7897 | { |
| 51aecdc5 AM |
7898 | /* Arrange for the function descriptor sym |
| 7899 | to be dropped. */ | |
| 7900 | fdh->elf.root.u.def.value = 0; | |
| 7901 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 7902 | } |
| 51aecdc5 | 7903 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 7904 | |
| 51aecdc5 AM |
7905 | if (NO_OPD_RELOCS || info->relocatable) |
| 7906 | rel = next_rel; | |
| 7907 | else | |
| 7908 | while (1) | |
| 7909 | { | |
| 7910 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 7911 | NULL, h, sym)) | |
| 7912 | goto error_ret; | |
| 754021d0 | 7913 | |
| 51aecdc5 AM |
7914 | if (++rel == next_rel) |
| 7915 | break; | |
| 1e2f5b6e | 7916 | |
| 51aecdc5 AM |
7917 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 7918 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 7919 | r_symndx, ibfd)) | |
| 7920 | goto error_ret; | |
| 7921 | } | |
| 50bc7936 AM |
7922 | } |
| 7923 | else | |
| 1e2f5b6e | 7924 | { |
| 51aecdc5 AM |
7925 | /* We'll be keeping this opd entry. */ |
| 7926 | long adjust; | |
| 7927 | ||
| 7928 | if (fdh != NULL) | |
| 7929 | { | |
| 7930 | /* Redefine the function descriptor symbol to | |
| 7931 | this location in the opd section. It is | |
| 7932 | necessary to update the value here rather | |
| 7933 | than using an array of adjustments as we do | |
| 7934 | for local symbols, because various places | |
| 7935 | in the generic ELF code use the value | |
| 7936 | stored in u.def.value. */ | |
| 7937 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 7938 | fdh->adjust_done = 1; | |
| 7939 | } | |
| 7940 | ||
| 7941 | /* Local syms are a bit tricky. We could | |
| 7942 | tweak them as they can be cached, but | |
| 7943 | we'd need to look through the local syms | |
| 7944 | for the function descriptor sym which we | |
| 7945 | don't have at the moment. So keep an | |
| 7946 | array of adjustments. */ | |
| 7947 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 7948 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 7949 | ||
| 7950 | if (wptr != rptr) | |
| 7951 | memcpy (wptr, rptr, opd_ent_size); | |
| 7952 | wptr += opd_ent_size; | |
| 7953 | if (add_aux_fields && opd_ent_size == 16) | |
| 7954 | { | |
| 7955 | memset (wptr, '\0', 8); | |
| 7956 | wptr += 8; | |
| 7957 | } | |
| 7958 | ||
| 50bc7936 | 7959 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
7960 | new opd entries. */ |
| 7961 | for ( ; rel != next_rel; ++rel) | |
| 7962 | { | |
| 7963 | rel->r_offset += adjust; | |
| 7964 | if (write_rel != rel) | |
| 7965 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 7966 | ++write_rel; | |
| 7967 | } | |
| 1e2f5b6e | 7968 | } |
| 51aecdc5 AM |
7969 | |
| 7970 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
7971 | } |
| 7972 | ||
| 3f764659 | 7973 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 7974 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
7975 | if (add_aux_fields) |
| 7976 | { | |
| 7977 | free (sec->contents); | |
| 7978 | sec->contents = new_contents; | |
| 7979 | } | |
| 7980 | ||
| 05bf9422 | 7981 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 7982 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
7983 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 7984 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 7985 | some_edited = TRUE; |
| 1e2f5b6e | 7986 | } |
| 6cdc0ccc | 7987 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 7988 | free (relstart); |
| 6cdc0ccc | 7989 | |
| 411e1bfb AM |
7990 | if (local_syms != NULL |
| 7991 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7992 | { | |
| 7993 | if (!info->keep_memory) | |
| 7994 | free (local_syms); | |
| 7995 | else | |
| 7996 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 7997 | } | |
| 7998 | } | |
| 7999 | ||
| 754021d0 AM |
8000 | if (some_edited) |
| 8001 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8002 | ||
| 3f764659 JJ |
8003 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8004 | long, add a 8 byte padding after it. */ | |
| 8005 | if (need_pad != NULL && !info->relocatable) | |
| 8006 | { | |
| 8007 | bfd_byte *p; | |
| 8008 | ||
| 8009 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8010 | { | |
| 8011 | BFD_ASSERT (need_pad->size > 0); | |
| 8012 | ||
| 8013 | p = bfd_malloc (need_pad->size + 8); | |
| 8014 | if (p == NULL) | |
| 8015 | return FALSE; | |
| 699733f6 | 8016 | |
| 3f764659 JJ |
8017 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8018 | p, 0, need_pad->size)) | |
| 8019 | return FALSE; | |
| 8020 | ||
| 8021 | need_pad->contents = p; | |
| 8022 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8023 | } | |
| 8024 | else | |
| 8025 | { | |
| 8026 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8027 | if (p == NULL) | |
| 8028 | return FALSE; | |
| 8029 | ||
| 8030 | need_pad->contents = p; | |
| 8031 | } | |
| 8032 | ||
| 8033 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8034 | need_pad->size += 8; | |
| 8035 | } | |
| 8036 | ||
| 411e1bfb AM |
8037 | return TRUE; |
| 8038 | } | |
| 8039 | ||
| e1918d23 | 8040 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8041 | |
| e1918d23 | 8042 | asection * |
| e7d1c40c | 8043 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8044 | { |
| 411e1bfb AM |
8045 | struct ppc_link_hash_table *htab; |
| 8046 | ||
| 411e1bfb | 8047 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8048 | if (htab == NULL) |
| 8049 | return NULL; | |
| 8050 | ||
| ee67d69a AM |
8051 | if (abiversion (info->output_bfd) == 1) |
| 8052 | htab->opd_abi = 1; | |
| 8053 | ||
| e7d1c40c | 8054 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8055 | htab->do_multi_toc = 0; |
| 8056 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8057 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8058 | |
| 3a71aa26 AM |
8059 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8060 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8061 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8062 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8063 | if (htab->tls_get_addr != NULL) | |
| 8064 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8065 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8066 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8067 | FALSE, FALSE, TRUE)); | |
| e7d1c40c | 8068 | if (!htab->params->no_tls_get_addr_opt) |
| a7f2871e AM |
8069 | { |
| 8070 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8071 | ||
| 8072 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8073 | FALSE, FALSE, TRUE); | |
| 8074 | if (opt != NULL) | |
| 8075 | func_desc_adjust (opt, info); | |
| 8076 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8077 | FALSE, FALSE, TRUE); | |
| 8078 | if (opt_fd != NULL | |
| 8079 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8080 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8081 | { | |
| 8082 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8083 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8084 | be calling __tls_get_addr via a plt call stub, then | |
| 8085 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8086 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8087 | if (htab->elf.dynamic_sections_created | |
| 8088 | && tga_fd != NULL | |
| 8089 | && (tga_fd->type == STT_FUNC | |
| 8090 | || tga_fd->needs_plt) | |
| 8091 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8092 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8093 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8094 | { | |
| 8095 | struct plt_entry *ent; | |
| 8096 | ||
| 8097 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8098 | if (ent->plt.refcount > 0) | |
| 8099 | break; | |
| 8100 | if (ent != NULL) | |
| 8101 | { | |
| 8102 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8103 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8104 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 8105 | if (opt_fd->dynindx != -1) | |
| 8106 | { | |
| 8107 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8108 | opt_fd->dynindx = -1; | |
| 8109 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8110 | opt_fd->dynstr_index); | |
| 8111 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8112 | return NULL; |
| a7f2871e AM |
8113 | } |
| 8114 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8115 | tga = &htab->tls_get_addr->elf; | |
| 8116 | if (opt != NULL && tga != NULL) | |
| 8117 | { | |
| 8118 | tga->root.type = bfd_link_hash_indirect; | |
| 8119 | tga->root.u.i.link = &opt->root; | |
| 8120 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 8121 | _bfd_elf_link_hash_hide_symbol (info, opt, | |
| 8122 | tga->forced_local); | |
| 8123 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8124 | } | |
| 8125 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8126 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8127 | if (htab->tls_get_addr != NULL) | |
| 8128 | { | |
| 8129 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8130 | htab->tls_get_addr->is_func = 1; | |
| 8131 | } | |
| 8132 | } | |
| 8133 | } | |
| 8134 | } | |
| 8135 | else | |
| e7d1c40c | 8136 | htab->params->no_tls_get_addr_opt = TRUE; |
| a7f2871e | 8137 | } |
| 33c0ec9d | 8138 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8139 | } |
| 8387904d | 8140 | |
| 3a71aa26 AM |
8141 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8142 | HASH1 or HASH2. */ | |
| 8387904d | 8143 | |
| 3a71aa26 AM |
8144 | static bfd_boolean |
| 8145 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8146 | const Elf_Internal_Rela *rel, | |
| 8147 | const struct ppc_link_hash_entry *hash1, | |
| 8148 | const struct ppc_link_hash_entry *hash2) | |
| 8149 | { | |
| 8150 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8151 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8152 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8153 | ||
| e054468f | 8154 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8155 | { |
| 3a71aa26 AM |
8156 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8157 | struct elf_link_hash_entry *h; | |
| 8387904d | 8158 | |
| 3a71aa26 | 8159 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8160 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8161 | if (h == &hash1->elf || h == &hash2->elf) |
| 8162 | return TRUE; | |
| a48ebf4d | 8163 | } |
| 3a71aa26 | 8164 | return FALSE; |
| 951fd09b | 8165 | } |
| 411e1bfb | 8166 | |
| 951fd09b AM |
8167 | /* Run through all the TLS relocs looking for optimization |
| 8168 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8169 | a preliminary section layout so that we know the TLS segment | |
| 8170 | offsets. We can't optimize earlier because some optimizations need | |
| 8171 | to know the tp offset, and we need to optimize before allocating | |
| 8172 | dynamic relocations. */ | |
| 8173 | ||
| 8174 | bfd_boolean | |
| 33c0ec9d | 8175 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8176 | { |
| 8177 | bfd *ibfd; | |
| 8178 | asection *sec; | |
| 8179 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8180 | unsigned char *toc_ref; |
| 102890f0 | 8181 | int pass; |
| 951fd09b | 8182 | |
| 1d483afe | 8183 | if (info->relocatable || !info->executable) |
| 411e1bfb AM |
8184 | return TRUE; |
| 8185 | ||
| 951fd09b | 8186 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8187 | if (htab == NULL) |
| 8188 | return FALSE; | |
| 8189 | ||
| 663a1470 AM |
8190 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8191 | entries involved with tls relocs, and check that tls relocs | |
| 8192 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8193 | such a call. If they are not, we can't do any tls optimization. | |
| 8194 | On the second pass twiddle tls_mask flags to notify | |
| 8195 | relocate_section that optimization can be done, and adjust got | |
| 8196 | and plt refcounts. */ | |
| 8197 | toc_ref = NULL; | |
| 8198 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8199 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8200 | { |
| 8201 | Elf_Internal_Sym *locsyms = NULL; | |
| 8202 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8203 | ||
| 102890f0 AM |
8204 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8205 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8206 | { | |
| 8207 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8208 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8209 | |
| 102890f0 AM |
8210 | /* Read the relocations. */ |
| 8211 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8212 | info->keep_memory); | |
| 8213 | if (relstart == NULL) | |
| 2915c55b JK |
8214 | { |
| 8215 | free (toc_ref); | |
| 8216 | return FALSE; | |
| 8217 | } | |
| 411e1bfb | 8218 | |
| 102890f0 AM |
8219 | relend = relstart + sec->reloc_count; |
| 8220 | for (rel = relstart; rel < relend; rel++) | |
| 8221 | { | |
| 8222 | enum elf_ppc64_reloc_type r_type; | |
| 8223 | unsigned long r_symndx; | |
| 8224 | struct elf_link_hash_entry *h; | |
| 8225 | Elf_Internal_Sym *sym; | |
| 8226 | asection *sym_sec; | |
| f961d9dd AM |
8227 | unsigned char *tls_mask; |
| 8228 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8229 | bfd_vma value; |
| 8230 | bfd_boolean ok_tprel, is_local; | |
| 8231 | long toc_ref_index = 0; | |
| 8232 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8233 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8234 | |
| 102890f0 AM |
8235 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8236 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8237 | r_symndx, ibfd)) | |
| 8238 | { | |
| 8239 | err_free_rel: | |
| 8240 | if (elf_section_data (sec)->relocs != relstart) | |
| 8241 | free (relstart); | |
| 8242 | if (toc_ref != NULL) | |
| 8243 | free (toc_ref); | |
| 8244 | if (locsyms != NULL | |
| 0ffa91dd | 8245 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8246 | != (unsigned char *) locsyms)) |
| 8247 | free (locsyms); | |
| 663a1470 | 8248 | return ret; |
| 102890f0 | 8249 | } |
| 411e1bfb | 8250 | |
| 102890f0 AM |
8251 | if (h != NULL) |
| 8252 | { | |
| 766bc656 AM |
8253 | if (h->root.type == bfd_link_hash_defined |
| 8254 | || h->root.type == bfd_link_hash_defweak) | |
| 8255 | value = h->root.u.def.value; | |
| 8256 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8257 | value = 0; | |
| 8258 | else | |
| 663a1470 AM |
8259 | { |
| 8260 | found_tls_get_addr_arg = 0; | |
| 8261 | continue; | |
| 8262 | } | |
| 102890f0 AM |
8263 | } |
| 8264 | else | |
| 8265 | /* Symbols referenced by TLS relocs must be of type | |
| 8266 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8267 | value = sym->st_value; | |
| 8268 | ||
| 8269 | ok_tprel = FALSE; | |
| 8270 | is_local = FALSE; | |
| 8271 | if (h == NULL | |
| 8272 | || !h->def_dynamic) | |
| 8273 | { | |
| 8274 | is_local = TRUE; | |
| 766bc656 AM |
8275 | if (h != NULL |
| 8276 | && h->root.type == bfd_link_hash_undefweak) | |
| 8277 | ok_tprel = TRUE; | |
| 8278 | else | |
| 8279 | { | |
| 8280 | value += sym_sec->output_offset; | |
| 8281 | value += sym_sec->output_section->vma; | |
| 8282 | value -= htab->elf.tls_sec->vma; | |
| 8283 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8284 | < (bfd_vma) 1 << 32); | |
| 8285 | } | |
| 102890f0 | 8286 | } |
| 951fd09b | 8287 | |
| 102890f0 | 8288 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8289 | /* If this section has old-style __tls_get_addr calls |
| 8290 | without marker relocs, then check that each | |
| 8291 | __tls_get_addr call reloc is preceded by a reloc | |
| 8292 | that conceivably belongs to the __tls_get_addr arg | |
| 8293 | setup insn. If we don't find matching arg setup | |
| 8294 | relocs, don't do any tls optimization. */ | |
| 8295 | if (pass == 0 | |
| 8296 | && sec->has_tls_get_addr_call | |
| 8297 | && h != NULL | |
| 8298 | && (h == &htab->tls_get_addr->elf | |
| 8299 | || h == &htab->tls_get_addr_fd->elf) | |
| 8300 | && !found_tls_get_addr_arg | |
| 8301 | && is_branch_reloc (r_type)) | |
| 8302 | { | |
| 25f53a85 | 8303 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8304 | "TLS optimization disabled\n"), |
| 8305 | ibfd, sec, rel->r_offset); | |
| 8306 | ret = TRUE; | |
| 8307 | goto err_free_rel; | |
| 8308 | } | |
| 8309 | ||
| 8310 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8311 | switch (r_type) |
| 8312 | { | |
| 8313 | case R_PPC64_GOT_TLSLD16: | |
| 8314 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8315 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8316 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8317 | /* Fall thru */ |
| 8318 | ||
| 8319 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8320 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8321 | /* These relocs should never be against a symbol | |
| 8322 | defined in a shared lib. Leave them alone if | |
| 8323 | that turns out to be the case. */ | |
| 8324 | if (!is_local) | |
| 8325 | continue; | |
| 411e1bfb | 8326 | |
| 102890f0 | 8327 | /* LD -> LE */ |
| 411e1bfb | 8328 | tls_set = 0; |
| 102890f0 AM |
8329 | tls_clear = TLS_LD; |
| 8330 | tls_type = TLS_TLS | TLS_LD; | |
| 8331 | break; | |
| 411e1bfb | 8332 | |
| 102890f0 AM |
8333 | case R_PPC64_GOT_TLSGD16: |
| 8334 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8335 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8336 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8337 | /* Fall thru */ |
| 8338 | ||
| 8339 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8340 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8341 | if (ok_tprel) | |
| 8342 | /* GD -> LE */ | |
| 411e1bfb | 8343 | tls_set = 0; |
| 102890f0 AM |
8344 | else |
| 8345 | /* GD -> IE */ | |
| 8346 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8347 | tls_clear = TLS_GD; | |
| 8348 | tls_type = TLS_TLS | TLS_GD; | |
| 8349 | break; | |
| 8350 | ||
| 8351 | case R_PPC64_GOT_TPREL16_DS: | |
| 8352 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8353 | case R_PPC64_GOT_TPREL16_HI: | |
| 8354 | case R_PPC64_GOT_TPREL16_HA: | |
| 8355 | if (ok_tprel) | |
| 8356 | { | |
| 8357 | /* IE -> LE */ | |
| 8358 | tls_set = 0; | |
| 8359 | tls_clear = TLS_TPREL; | |
| 8360 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8361 | break; | |
| 8362 | } | |
| 411e1bfb AM |
8363 | continue; |
| 8364 | ||
| 727fc41e AM |
8365 | case R_PPC64_TLSGD: |
| 8366 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8367 | found_tls_get_addr_arg = 1; |
| 8368 | /* Fall thru */ | |
| 8369 | ||
| 8370 | case R_PPC64_TLS: | |
| 8371 | case R_PPC64_TOC16: | |
| 8372 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8373 | if (sym_sec == NULL || sym_sec != toc) |
| 8374 | continue; | |
| 8375 | ||
| 8376 | /* Mark this toc entry as referenced by a TLS | |
| 8377 | code sequence. We can do that now in the | |
| 8378 | case of R_PPC64_TLS, and after checking for | |
| 8379 | tls_get_addr for the TOC16 relocs. */ | |
| 8380 | if (toc_ref == NULL) | |
| 663a1470 AM |
8381 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8382 | if (toc_ref == NULL) | |
| 8383 | goto err_free_rel; | |
| 8384 | ||
| 102890f0 AM |
8385 | if (h != NULL) |
| 8386 | value = h->root.u.def.value; | |
| 8387 | else | |
| 8388 | value = sym->st_value; | |
| 8389 | value += rel->r_addend; | |
| 73242275 AM |
8390 | if (value % 8 != 0) |
| 8391 | continue; | |
| 8392 | BFD_ASSERT (value < toc->size | |
| 8393 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8394 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8395 | if (r_type == R_PPC64_TLS |
| 8396 | || r_type == R_PPC64_TLSGD | |
| 8397 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8398 | { |
| 8399 | toc_ref[toc_ref_index] = 1; | |
| 8400 | continue; | |
| 8401 | } | |
| 8402 | ||
| 8403 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8404 | continue; | |
| 8405 | ||
| 8406 | tls_set = 0; | |
| 8407 | tls_clear = 0; | |
| 8408 | expecting_tls_get_addr = 2; | |
| 8409 | break; | |
| 8410 | ||
| 8411 | case R_PPC64_TPREL64: | |
| 8412 | if (pass == 0 | |
| 8413 | || sec != toc | |
| 8414 | || toc_ref == NULL | |
| 663a1470 | 8415 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8416 | continue; |
| 8417 | if (ok_tprel) | |
| 8418 | { | |
| 8419 | /* IE -> LE */ | |
| 8420 | tls_set = TLS_EXPLICIT; | |
| 8421 | tls_clear = TLS_TPREL; | |
| 8422 | break; | |
| 8423 | } | |
| 8424 | continue; | |
| 8425 | ||
| 8426 | case R_PPC64_DTPMOD64: | |
| 8427 | if (pass == 0 | |
| 8428 | || sec != toc | |
| 8429 | || toc_ref == NULL | |
| 663a1470 | 8430 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8431 | continue; |
| 8432 | if (rel + 1 < relend | |
| 8433 | && (rel[1].r_info | |
| 8434 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8435 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8436 | { | |
| 8437 | if (ok_tprel) | |
| 8438 | /* GD -> LE */ | |
| 8439 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8440 | else | |
| 8441 | /* GD -> IE */ | |
| 8442 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8443 | tls_clear = TLS_GD; | |
| 8444 | } | |
| 8445 | else | |
| 8446 | { | |
| 8447 | if (!is_local) | |
| 8448 | continue; | |
| 8449 | ||
| 8450 | /* LD -> LE */ | |
| 8451 | tls_set = TLS_EXPLICIT; | |
| 8452 | tls_clear = TLS_LD; | |
| 8453 | } | |
| 8454 | break; | |
| 8455 | ||
| 8456 | default: | |
| 8457 | continue; | |
| 8458 | } | |
| 8459 | ||
| 8460 | if (pass == 0) | |
| 8461 | { | |
| 727fc41e AM |
8462 | if (!expecting_tls_get_addr |
| 8463 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8464 | continue; |
| 8465 | ||
| 3a71aa26 AM |
8466 | if (rel + 1 < relend |
| 8467 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8468 | htab->tls_get_addr, | |
| 8469 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8470 | { |
| 3a71aa26 | 8471 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8472 | { |
| 3a71aa26 | 8473 | /* Check for toc tls entries. */ |
| f961d9dd | 8474 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8475 | int retval; |
| 8476 | ||
| 8477 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8478 | &locsyms, | |
| 8479 | rel, ibfd); | |
| 8480 | if (retval == 0) | |
| 8481 | goto err_free_rel; | |
| 663a1470 AM |
8482 | if (toc_tls != NULL) |
| 8483 | { | |
| 8484 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8485 | found_tls_get_addr_arg = 1; | |
| 8486 | if (retval > 1) | |
| 8487 | toc_ref[toc_ref_index] = 1; | |
| 8488 | } | |
| 102890f0 | 8489 | } |
| 3a71aa26 | 8490 | continue; |
| 102890f0 AM |
8491 | } |
| 8492 | ||
| 8493 | if (expecting_tls_get_addr != 1) | |
| 8494 | continue; | |
| 8495 | ||
| 8496 | /* Uh oh, we didn't find the expected call. We | |
| 8497 | could just mark this symbol to exclude it | |
| 8498 | from tls optimization but it's safer to skip | |
| 663a1470 | 8499 | the entire optimization. */ |
| 25f53a85 | 8500 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8501 | "TLS optimization disabled\n"), |
| 8502 | ibfd, sec, rel->r_offset); | |
| 8503 | ret = TRUE; | |
| 8504 | goto err_free_rel; | |
| 102890f0 AM |
8505 | } |
| 8506 | ||
| 85f7a9cb | 8507 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8508 | { |
| 8509 | struct plt_entry *ent; | |
| 8510 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8511 | ent != NULL; | |
| 8512 | ent = ent->next) | |
| 8513 | if (ent->addend == 0) | |
| 411e1bfb | 8514 | { |
| 102890f0 | 8515 | if (ent->plt.refcount > 0) |
| 30038c59 | 8516 | { |
| 102890f0 AM |
8517 | ent->plt.refcount -= 1; |
| 8518 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8519 | } |
| 102890f0 | 8520 | break; |
| 411e1bfb | 8521 | } |
| 102890f0 | 8522 | } |
| 411e1bfb | 8523 | |
| 85f7a9cb | 8524 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8525 | { |
| 8526 | struct plt_entry *ent; | |
| 8527 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8528 | ent != NULL; | |
| 8529 | ent = ent->next) | |
| 8530 | if (ent->addend == 0) | |
| 411e1bfb | 8531 | { |
| 102890f0 AM |
8532 | if (ent->plt.refcount > 0) |
| 8533 | ent->plt.refcount -= 1; | |
| 8534 | break; | |
| 411e1bfb | 8535 | } |
| 102890f0 | 8536 | } |
| 411e1bfb | 8537 | |
| 102890f0 | 8538 | if (tls_clear == 0) |
| 30038c59 AM |
8539 | continue; |
| 8540 | ||
| 102890f0 AM |
8541 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8542 | { | |
| 8543 | struct got_entry *ent; | |
| 411e1bfb | 8544 | |
| 102890f0 AM |
8545 | /* Adjust got entry for this reloc. */ |
| 8546 | if (h != NULL) | |
| 8547 | ent = h->got.glist; | |
| 8548 | else | |
| 8549 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8550 | |
| 102890f0 AM |
8551 | for (; ent != NULL; ent = ent->next) |
| 8552 | if (ent->addend == rel->r_addend | |
| 8553 | && ent->owner == ibfd | |
| 8554 | && ent->tls_type == tls_type) | |
| 8555 | break; | |
| 8556 | if (ent == NULL) | |
| 8557 | abort (); | |
| 411e1bfb | 8558 | |
| 102890f0 AM |
8559 | if (tls_set == 0) |
| 8560 | { | |
| 8561 | /* We managed to get rid of a got entry. */ | |
| 8562 | if (ent->got.refcount > 0) | |
| 8563 | ent->got.refcount -= 1; | |
| 8564 | } | |
| 8565 | } | |
| 8566 | else | |
| 8567 | { | |
| 8568 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8569 | we'll lose one or two dyn relocs. */ | |
| 8570 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8571 | NULL, h, sym)) |
| 102890f0 | 8572 | return FALSE; |
| 411e1bfb | 8573 | |
| 102890f0 AM |
8574 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8575 | { | |
| 8576 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8577 | NULL, h, sym)) |
| 102890f0 AM |
8578 | return FALSE; |
| 8579 | } | |
| 8580 | } | |
| 411e1bfb | 8581 | |
| 102890f0 AM |
8582 | *tls_mask |= tls_set; |
| 8583 | *tls_mask &= ~tls_clear; | |
| 8584 | } | |
| 8c1d1bb8 | 8585 | |
| 102890f0 AM |
8586 | if (elf_section_data (sec)->relocs != relstart) |
| 8587 | free (relstart); | |
| 8588 | } | |
| 411e1bfb | 8589 | |
| 663a1470 AM |
8590 | if (locsyms != NULL |
| 8591 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8592 | { | |
| 8593 | if (!info->keep_memory) | |
| 8594 | free (locsyms); | |
| 8595 | else | |
| 8596 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8597 | } | |
| 8598 | } | |
| 411e1bfb | 8599 | |
| 663a1470 AM |
8600 | if (toc_ref != NULL) |
| 8601 | free (toc_ref); | |
| b34976b6 | 8602 | return TRUE; |
| 1e2f5b6e | 8603 | } |
| b34976b6 | 8604 | |
| c5614fa4 AM |
8605 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8606 | the values of any global symbols in a toc section that has been | |
| 8607 | edited. Globals in toc sections should be a rarity, so this function | |
| 8608 | sets a flag if any are found in toc sections other than the one just | |
| 8609 | edited, so that futher hash table traversals can be avoided. */ | |
| 8610 | ||
| 8611 | struct adjust_toc_info | |
| 8612 | { | |
| 8613 | asection *toc; | |
| 8614 | unsigned long *skip; | |
| 8615 | bfd_boolean global_toc_syms; | |
| 8616 | }; | |
| 8617 | ||
| ba761f19 AM |
8618 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8619 | ||
| c5614fa4 AM |
8620 | static bfd_boolean |
| 8621 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8622 | { | |
| 8623 | struct ppc_link_hash_entry *eh; | |
| 8624 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8625 | unsigned long i; |
| c5614fa4 | 8626 | |
| c5614fa4 AM |
8627 | if (h->root.type != bfd_link_hash_defined |
| 8628 | && h->root.type != bfd_link_hash_defweak) | |
| 8629 | return TRUE; | |
| 8630 | ||
| 8631 | eh = (struct ppc_link_hash_entry *) h; | |
| 8632 | if (eh->adjust_done) | |
| 8633 | return TRUE; | |
| 8634 | ||
| 8635 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8636 | { | |
| 854b41e7 AM |
8637 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8638 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8639 | else |
| 854b41e7 AM |
8640 | i = eh->elf.root.u.def.value >> 3; |
| 8641 | ||
| ba761f19 | 8642 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8643 | { |
| 8644 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8645 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8646 | do | |
| 8647 | ++i; | |
| ba761f19 | 8648 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8649 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8650 | } |
| 854b41e7 AM |
8651 | |
| 8652 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8653 | eh->adjust_done = 1; |
| 8654 | } | |
| 8655 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8656 | toc_inf->global_toc_syms = TRUE; | |
| 8657 | ||
| 8658 | return TRUE; | |
| 8659 | } | |
| 8660 | ||
| 560c8763 AM |
8661 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8662 | ||
| 8663 | static bfd_boolean | |
| 8664 | ok_lo_toc_insn (unsigned int insn) | |
| 8665 | { | |
| 8666 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8667 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8668 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8669 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8670 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8671 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8672 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8673 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8674 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8675 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8676 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8677 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8678 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8679 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8680 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8681 | && (insn & 3) != 1) | |
| 8682 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8683 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8684 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8685 | } | |
| 8686 | ||
| c5614fa4 AM |
8687 | /* Examine all relocs referencing .toc sections in order to remove |
| 8688 | unused .toc entries. */ | |
| 8689 | ||
| 8690 | bfd_boolean | |
| 33c0ec9d | 8691 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8692 | { |
| 8693 | bfd *ibfd; | |
| 8694 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8695 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8696 | |
| 67f0cbdb | 8697 | htab->do_toc_opt = 1; |
| c5614fa4 | 8698 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8699 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8700 | { |
| 8701 | asection *toc, *sec; | |
| 8702 | Elf_Internal_Shdr *symtab_hdr; | |
| 8703 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8704 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8705 | unsigned long *skip, *drop; |
| 8706 | unsigned char *used; | |
| 8707 | unsigned char *keep, last, some_unused; | |
| 8708 | ||
| 854b41e7 AM |
8709 | if (!is_ppc64_elf (ibfd)) |
| 8710 | continue; | |
| 8711 | ||
| c5614fa4 AM |
8712 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8713 | if (toc == NULL | |
| 92b7a70f | 8714 | || toc->size == 0 |
| dbaa2011 AM |
8715 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8716 | || discarded_section (toc)) | |
| c5614fa4 AM |
8717 | continue; |
| 8718 | ||
| 425b145b | 8719 | toc_relocs = NULL; |
| c5614fa4 | 8720 | local_syms = NULL; |
| 0ffa91dd | 8721 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8722 | |
| 8723 | /* Look at sections dropped from the final link. */ | |
| 8724 | skip = NULL; | |
| 8725 | relstart = NULL; | |
| 8726 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8727 | { | |
| 8728 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8729 | || !discarded_section (sec) |
| c5614fa4 AM |
8730 | || get_opd_info (sec) |
| 8731 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8732 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8733 | continue; | |
| 8734 | ||
| 8735 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8736 | if (relstart == NULL) | |
| 8737 | goto error_ret; | |
| 8738 | ||
| 8739 | /* Run through the relocs to see which toc entries might be | |
| 8740 | unused. */ | |
| 8741 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8742 | { | |
| 8743 | enum elf_ppc64_reloc_type r_type; | |
| 8744 | unsigned long r_symndx; | |
| 8745 | asection *sym_sec; | |
| 8746 | struct elf_link_hash_entry *h; | |
| 8747 | Elf_Internal_Sym *sym; | |
| 8748 | bfd_vma val; | |
| 8749 | ||
| 8750 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8751 | switch (r_type) | |
| 8752 | { | |
| 8753 | default: | |
| 8754 | continue; | |
| 8755 | ||
| 8756 | case R_PPC64_TOC16: | |
| 8757 | case R_PPC64_TOC16_LO: | |
| 8758 | case R_PPC64_TOC16_HI: | |
| 8759 | case R_PPC64_TOC16_HA: | |
| 8760 | case R_PPC64_TOC16_DS: | |
| 8761 | case R_PPC64_TOC16_LO_DS: | |
| 8762 | break; | |
| 8763 | } | |
| 8764 | ||
| 8765 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8766 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8767 | r_symndx, ibfd)) | |
| 8768 | goto error_ret; | |
| 8769 | ||
| 8770 | if (sym_sec != toc) | |
| 8771 | continue; | |
| 8772 | ||
| 8773 | if (h != NULL) | |
| 8774 | val = h->root.u.def.value; | |
| 8775 | else | |
| 8776 | val = sym->st_value; | |
| 8777 | val += rel->r_addend; | |
| 8778 | ||
| 8779 | if (val >= toc->size) | |
| 8780 | continue; | |
| 8781 | ||
| 8782 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8783 | If not, don't mark as unused. */ | |
| 8784 | if (val & 7) | |
| 8785 | continue; | |
| 8786 | ||
| 8787 | if (skip == NULL) | |
| 8788 | { | |
| 854b41e7 | 8789 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8790 | if (skip == NULL) |
| 8791 | goto error_ret; | |
| 8792 | } | |
| 8793 | ||
| ba761f19 | 8794 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8795 | } |
| 8796 | ||
| 8797 | if (elf_section_data (sec)->relocs != relstart) | |
| 8798 | free (relstart); | |
| 8799 | } | |
| 8800 | ||
| ba761f19 AM |
8801 | /* For largetoc loads of address constants, we can convert |
| 8802 | . addis rx,2,addr@got@ha | |
| 8803 | . ld ry,addr@got@l(rx) | |
| 8804 | to | |
| 8805 | . addis rx,2,addr@toc@ha | |
| 8806 | . addi ry,rx,addr@toc@l | |
| 8807 | when addr is within 2G of the toc pointer. This then means | |
| 8808 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8809 | |
| ba761f19 AM |
8810 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8811 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8812 | && toc->reloc_count != 0) | |
| 8813 | { | |
| 8814 | /* Read toc relocs. */ | |
| 425b145b AM |
8815 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8816 | info->keep_memory); | |
| 8817 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8818 | goto error_ret; |
| 8819 | ||
| 425b145b | 8820 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8821 | { |
| 8822 | enum elf_ppc64_reloc_type r_type; | |
| 8823 | unsigned long r_symndx; | |
| 8824 | asection *sym_sec; | |
| 8825 | struct elf_link_hash_entry *h; | |
| 8826 | Elf_Internal_Sym *sym; | |
| 8827 | bfd_vma val, addr; | |
| 8828 | ||
| 8829 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8830 | if (r_type != R_PPC64_ADDR64) | |
| 8831 | continue; | |
| 8832 | ||
| 8833 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8834 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8835 | r_symndx, ibfd)) | |
| 8836 | goto error_ret; | |
| 8837 | ||
| 425b145b | 8838 | if (sym_sec == NULL |
| dbaa2011 | 8839 | || discarded_section (sym_sec)) |
| 425b145b AM |
8840 | continue; |
| 8841 | ||
| afe397ea | 8842 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
8843 | continue; |
| 8844 | ||
| 8845 | if (h != NULL) | |
| bddc25c9 AM |
8846 | { |
| 8847 | if (h->type == STT_GNU_IFUNC) | |
| 8848 | continue; | |
| 8849 | val = h->root.u.def.value; | |
| 8850 | } | |
| ba761f19 | 8851 | else |
| bddc25c9 AM |
8852 | { |
| 8853 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8854 | continue; | |
| 8855 | val = sym->st_value; | |
| 8856 | } | |
| ba761f19 AM |
8857 | val += rel->r_addend; |
| 8858 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8859 | ||
| 8860 | /* We don't yet know the exact toc pointer value, but we | |
| 8861 | know it will be somewhere in the toc section. Don't | |
| 8862 | optimize if the difference from any possible toc | |
| 8863 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8864 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8865 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8866 | continue; | |
| 8867 | ||
| 8868 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 8869 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8870 | continue; | |
| 8871 | ||
| 8872 | if (skip == NULL) | |
| 8873 | { | |
| 8874 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 8875 | if (skip == NULL) | |
| 8876 | goto error_ret; | |
| 8877 | } | |
| 8878 | ||
| 8879 | skip[rel->r_offset >> 3] | |
| 425b145b | 8880 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 8881 | } |
| ba761f19 AM |
8882 | } |
| 8883 | ||
| c5614fa4 AM |
8884 | if (skip == NULL) |
| 8885 | continue; | |
| 8886 | ||
| 8887 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 8888 | if (used == NULL) | |
| 8889 | { | |
| 8890 | error_ret: | |
| 8891 | if (local_syms != NULL | |
| 8892 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8893 | free (local_syms); | |
| 8894 | if (sec != NULL | |
| 8895 | && relstart != NULL | |
| 8896 | && elf_section_data (sec)->relocs != relstart) | |
| 8897 | free (relstart); | |
| 425b145b AM |
8898 | if (toc_relocs != NULL |
| 8899 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 8900 | free (toc_relocs); | |
| c5614fa4 AM |
8901 | if (skip != NULL) |
| 8902 | free (skip); | |
| 8903 | return FALSE; | |
| 8904 | } | |
| 8905 | ||
| 30038c59 AM |
8906 | /* Now check all kept sections that might reference the toc. |
| 8907 | Check the toc itself last. */ | |
| 8908 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 8909 | : ibfd->sections); | |
| c5614fa4 | 8910 | sec != NULL; |
| c5614fa4 | 8911 | sec = (sec == toc ? NULL |
| c5614fa4 | 8912 | : sec->next == NULL ? toc |
| 30038c59 | 8913 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
8914 | : sec->next)) |
| 8915 | { | |
| 8916 | int repeat; | |
| 8917 | ||
| 8918 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8919 | || discarded_section (sec) |
| c5614fa4 AM |
8920 | || get_opd_info (sec) |
| 8921 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8922 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8923 | continue; | |
| 8924 | ||
| 854b41e7 AM |
8925 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 8926 | info->keep_memory); | |
| c5614fa4 | 8927 | if (relstart == NULL) |
| 2915c55b JK |
8928 | { |
| 8929 | free (used); | |
| 8930 | goto error_ret; | |
| 8931 | } | |
| c5614fa4 AM |
8932 | |
| 8933 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 8934 | do |
| d4f1ee75 AM |
8935 | { |
| 8936 | repeat = 0; | |
| 8937 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8938 | { | |
| 8939 | enum elf_ppc64_reloc_type r_type; | |
| 8940 | unsigned long r_symndx; | |
| 8941 | asection *sym_sec; | |
| 8942 | struct elf_link_hash_entry *h; | |
| 8943 | Elf_Internal_Sym *sym; | |
| 8944 | bfd_vma val; | |
| 8945 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 8946 | |
| d4f1ee75 AM |
8947 | r_type = ELF64_R_TYPE (rel->r_info); |
| 8948 | switch (r_type) | |
| 8949 | { | |
| 8950 | default: | |
| 8951 | insn_check = no_check; | |
| 8952 | break; | |
| 98528052 | 8953 | |
| d4f1ee75 AM |
8954 | case R_PPC64_GOT_TLSLD16_HA: |
| 8955 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8956 | case R_PPC64_GOT_TPREL16_HA: | |
| 8957 | case R_PPC64_GOT_DTPREL16_HA: | |
| 8958 | case R_PPC64_GOT16_HA: | |
| 8959 | case R_PPC64_TOC16_HA: | |
| 8960 | insn_check = check_ha; | |
| 8961 | break; | |
| 98528052 | 8962 | |
| d4f1ee75 AM |
8963 | case R_PPC64_GOT_TLSLD16_LO: |
| 8964 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8965 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8966 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 8967 | case R_PPC64_GOT16_LO: | |
| 8968 | case R_PPC64_GOT16_LO_DS: | |
| 8969 | case R_PPC64_TOC16_LO: | |
| 8970 | case R_PPC64_TOC16_LO_DS: | |
| 8971 | insn_check = check_lo; | |
| 8972 | break; | |
| 8973 | } | |
| 560c8763 | 8974 | |
| d4f1ee75 AM |
8975 | if (insn_check != no_check) |
| 8976 | { | |
| 8977 | bfd_vma off = rel->r_offset & ~3; | |
| 8978 | unsigned char buf[4]; | |
| 8979 | unsigned int insn; | |
| c5614fa4 | 8980 | |
| d4f1ee75 AM |
8981 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 8982 | { | |
| 8983 | free (used); | |
| 8984 | goto error_ret; | |
| 8985 | } | |
| 8986 | insn = bfd_get_32 (ibfd, buf); | |
| 8987 | if (insn_check == check_lo | |
| 8988 | ? !ok_lo_toc_insn (insn) | |
| 8989 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 8990 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 8991 | { | |
| 8992 | char str[12]; | |
| 8993 | ||
| 8994 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 8995 | sprintf (str, "%#08x", insn); | |
| 8996 | info->callbacks->einfo | |
| 8997 | (_("%P: %H: toc optimization is not supported for" | |
| 8998 | " %s instruction.\n"), | |
| 8999 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9000 | } | |
| 9001 | } | |
| c5614fa4 | 9002 | |
| d4f1ee75 AM |
9003 | switch (r_type) |
| 9004 | { | |
| 9005 | case R_PPC64_TOC16: | |
| 9006 | case R_PPC64_TOC16_LO: | |
| 9007 | case R_PPC64_TOC16_HI: | |
| 9008 | case R_PPC64_TOC16_HA: | |
| 9009 | case R_PPC64_TOC16_DS: | |
| 9010 | case R_PPC64_TOC16_LO_DS: | |
| 9011 | /* In case we're taking addresses of toc entries. */ | |
| 9012 | case R_PPC64_ADDR64: | |
| 9013 | break; | |
| c5614fa4 | 9014 | |
| d4f1ee75 AM |
9015 | default: |
| 9016 | continue; | |
| 9017 | } | |
| c5614fa4 | 9018 | |
| d4f1ee75 AM |
9019 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9020 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9021 | r_symndx, ibfd)) | |
| 9022 | { | |
| 9023 | free (used); | |
| 9024 | goto error_ret; | |
| 9025 | } | |
| c5614fa4 | 9026 | |
| d4f1ee75 AM |
9027 | if (sym_sec != toc) |
| 9028 | continue; | |
| c5614fa4 | 9029 | |
| d4f1ee75 AM |
9030 | if (h != NULL) |
| 9031 | val = h->root.u.def.value; | |
| 9032 | else | |
| 9033 | val = sym->st_value; | |
| 9034 | val += rel->r_addend; | |
| ba761f19 | 9035 | |
| d4f1ee75 AM |
9036 | if (val >= toc->size) |
| 9037 | continue; | |
| ba761f19 | 9038 | |
| d4f1ee75 AM |
9039 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9040 | { | |
| 9041 | bfd_vma off; | |
| 9042 | unsigned char opc; | |
| 9043 | ||
| 9044 | switch (r_type) | |
| 9045 | { | |
| 9046 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9047 | break; |
| ba761f19 | 9048 | |
| d4f1ee75 AM |
9049 | case R_PPC64_TOC16_LO_DS: |
| 9050 | off = rel->r_offset; | |
| 9051 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9052 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9053 | off, 1)) | |
| 9054 | { | |
| 9055 | free (used); | |
| 9056 | goto error_ret; | |
| 9057 | } | |
| 9058 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9059 | break; | |
| 9060 | /* Fall thru */ | |
| ba761f19 | 9061 | |
| d4f1ee75 AM |
9062 | default: |
| 9063 | /* Wrong sort of reloc, or not a ld. We may | |
| 9064 | as well clear ref_from_discarded too. */ | |
| 9065 | skip[val >> 3] = 0; | |
| 9066 | } | |
| 9067 | } | |
| 9068 | ||
| 9069 | if (sec != toc) | |
| 9070 | used[val >> 3] = 1; | |
| 9071 | /* For the toc section, we only mark as used if this | |
| 9072 | entry itself isn't unused. */ | |
| 9073 | else if ((used[rel->r_offset >> 3] | |
| 9074 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9075 | && !used[val >> 3]) | |
| 9076 | { | |
| 9077 | /* Do all the relocs again, to catch reference | |
| 9078 | chains. */ | |
| 9079 | repeat = 1; | |
| 9080 | used[val >> 3] = 1; | |
| 9081 | } | |
| 9082 | } | |
| 9083 | } | |
| c5614fa4 | 9084 | while (repeat); |
| 854b41e7 AM |
9085 | |
| 9086 | if (elf_section_data (sec)->relocs != relstart) | |
| 9087 | free (relstart); | |
| c5614fa4 AM |
9088 | } |
| 9089 | ||
| 9090 | /* Merge the used and skip arrays. Assume that TOC | |
| 9091 | doublewords not appearing as either used or unused belong | |
| 9092 | to to an entry more than one doubleword in size. */ | |
| 9093 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9094 | drop < skip + (toc->size + 7) / 8; | |
| 9095 | ++drop, ++keep) | |
| 9096 | { | |
| 9097 | if (*keep) | |
| 9098 | { | |
| ba761f19 AM |
9099 | *drop &= ~ref_from_discarded; |
| 9100 | if ((*drop & can_optimize) != 0) | |
| 9101 | some_unused = 1; | |
| c5614fa4 AM |
9102 | last = 0; |
| 9103 | } | |
| b140b010 | 9104 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9105 | { |
| 9106 | some_unused = 1; | |
| ba761f19 | 9107 | last = ref_from_discarded; |
| c5614fa4 AM |
9108 | } |
| 9109 | else | |
| 9110 | *drop = last; | |
| 9111 | } | |
| 9112 | ||
| 9113 | free (used); | |
| 9114 | ||
| 9115 | if (some_unused) | |
| 9116 | { | |
| 9117 | bfd_byte *contents, *src; | |
| 9118 | unsigned long off; | |
| d62b3684 | 9119 | Elf_Internal_Sym *sym; |
| ba761f19 | 9120 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9121 | |
| 9122 | /* Shuffle the toc contents, and at the same time convert the | |
| 9123 | skip array from booleans into offsets. */ | |
| 9124 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9125 | goto error_ret; | |
| 9126 | ||
| 9127 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9128 | ||
| 9129 | for (src = contents, off = 0, drop = skip; | |
| 9130 | src < contents + toc->size; | |
| 9131 | src += 8, ++drop) | |
| 9132 | { | |
| ba761f19 AM |
9133 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9134 | off += 8; | |
| c5614fa4 AM |
9135 | else if (off != 0) |
| 9136 | { | |
| 9137 | *drop = off; | |
| 9138 | memcpy (src - off, src, 8); | |
| 9139 | } | |
| 9140 | } | |
| 854b41e7 | 9141 | *drop = off; |
| c5614fa4 AM |
9142 | toc->rawsize = toc->size; |
| 9143 | toc->size = src - contents - off; | |
| 9144 | ||
| ba761f19 AM |
9145 | /* Adjust addends for relocs against the toc section sym, |
| 9146 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9147 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9148 | { | |
| 9149 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9150 | || discarded_section (sec)) |
| c5614fa4 AM |
9151 | continue; |
| 9152 | ||
| 9153 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9154 | info->keep_memory); |
| c5614fa4 AM |
9155 | if (relstart == NULL) |
| 9156 | goto error_ret; | |
| 9157 | ||
| 9158 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9159 | { | |
| 9160 | enum elf_ppc64_reloc_type r_type; | |
| 9161 | unsigned long r_symndx; | |
| 9162 | asection *sym_sec; | |
| 9163 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9164 | bfd_vma val; |
| c5614fa4 AM |
9165 | |
| 9166 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9167 | switch (r_type) | |
| 9168 | { | |
| 9169 | default: | |
| 9170 | continue; | |
| 9171 | ||
| 9172 | case R_PPC64_TOC16: | |
| 9173 | case R_PPC64_TOC16_LO: | |
| 9174 | case R_PPC64_TOC16_HI: | |
| 9175 | case R_PPC64_TOC16_HA: | |
| 9176 | case R_PPC64_TOC16_DS: | |
| 9177 | case R_PPC64_TOC16_LO_DS: | |
| 9178 | case R_PPC64_ADDR64: | |
| 9179 | break; | |
| 9180 | } | |
| 9181 | ||
| 9182 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9183 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9184 | r_symndx, ibfd)) | |
| 9185 | goto error_ret; | |
| 9186 | ||
| ba761f19 | 9187 | if (sym_sec != toc) |
| c5614fa4 AM |
9188 | continue; |
| 9189 | ||
| ba761f19 AM |
9190 | if (h != NULL) |
| 9191 | val = h->root.u.def.value; | |
| 9192 | else | |
| 9193 | { | |
| 9194 | val = sym->st_value; | |
| 9195 | if (val != 0) | |
| 9196 | local_toc_syms = TRUE; | |
| 9197 | } | |
| 9198 | ||
| 9199 | val += rel->r_addend; | |
| 854b41e7 AM |
9200 | |
| 9201 | if (val > toc->rawsize) | |
| 9202 | val = toc->rawsize; | |
| ba761f19 AM |
9203 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9204 | continue; | |
| 9205 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9206 | { | |
| 9207 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9208 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9209 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9210 | ||
| 9211 | switch (r_type) | |
| 9212 | { | |
| 9213 | case R_PPC64_TOC16_HA: | |
| 9214 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9215 | break; | |
| 9216 | ||
| 9217 | case R_PPC64_TOC16_LO_DS: | |
| 9218 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9219 | break; | |
| 9220 | ||
| 9221 | default: | |
| 28942f62 AM |
9222 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9223 | ppc_howto_init (); | |
| b140b010 | 9224 | info->callbacks->einfo |
| bc30df16 | 9225 | (_("%P: %H: %s references " |
| b140b010 AM |
9226 | "optimized away TOC entry\n"), |
| 9227 | ibfd, sec, rel->r_offset, | |
| 9228 | ppc64_elf_howto_table[r_type]->name); | |
| 9229 | bfd_set_error (bfd_error_bad_value); | |
| 9230 | goto error_ret; | |
| ba761f19 AM |
9231 | } |
| 9232 | rel->r_addend = tocrel->r_addend; | |
| 9233 | elf_section_data (sec)->relocs = relstart; | |
| 9234 | continue; | |
| 9235 | } | |
| 9236 | ||
| 9237 | if (h != NULL || sym->st_value != 0) | |
| 9238 | continue; | |
| 854b41e7 AM |
9239 | |
| 9240 | rel->r_addend -= skip[val >> 3]; | |
| 9241 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9242 | } |
| 854b41e7 AM |
9243 | |
| 9244 | if (elf_section_data (sec)->relocs != relstart) | |
| 9245 | free (relstart); | |
| c5614fa4 AM |
9246 | } |
| 9247 | ||
| 9248 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9249 | but handle them anyway. */ | |
| df22d223 AM |
9250 | if (local_syms != NULL) |
| 9251 | for (sym = local_syms; | |
| 9252 | sym < local_syms + symtab_hdr->sh_info; | |
| 9253 | ++sym) | |
| 9254 | if (sym->st_value != 0 | |
| 9255 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9256 | { | |
| 9257 | unsigned long i; | |
| 854b41e7 | 9258 | |
| df22d223 AM |
9259 | if (sym->st_value > toc->rawsize) |
| 9260 | i = toc->rawsize >> 3; | |
| 9261 | else | |
| 9262 | i = sym->st_value >> 3; | |
| 854b41e7 | 9263 | |
| df22d223 AM |
9264 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9265 | { | |
| 9266 | if (local_toc_syms) | |
| 9267 | (*_bfd_error_handler) | |
| 9268 | (_("%s defined on removed toc entry"), | |
| 9269 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9270 | do | |
| 9271 | ++i; | |
| 9272 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9273 | sym->st_value = (bfd_vma) i << 3; | |
| 9274 | } | |
| d62b3684 | 9275 | |
| df22d223 AM |
9276 | sym->st_value -= skip[i]; |
| 9277 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9278 | } | |
| c5614fa4 | 9279 | |
| 854b41e7 | 9280 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9281 | if (toc_inf.global_toc_syms) |
| 9282 | { | |
| 9283 | toc_inf.toc = toc; | |
| 9284 | toc_inf.skip = skip; | |
| 9285 | toc_inf.global_toc_syms = FALSE; | |
| 9286 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9287 | &toc_inf); | |
| 9288 | } | |
| 854b41e7 AM |
9289 | |
| 9290 | if (toc->reloc_count != 0) | |
| 9291 | { | |
| d4730f92 | 9292 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9293 | Elf_Internal_Rela *wrel; |
| 9294 | bfd_size_type sz; | |
| 9295 | ||
| 854b41e7 | 9296 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9297 | if (toc_relocs == NULL) |
| 9298 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9299 | info->keep_memory); | |
| 9300 | if (toc_relocs == NULL) | |
| 9301 | goto error_ret; | |
| 9302 | ||
| 425b145b AM |
9303 | wrel = toc_relocs; |
| 9304 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9305 | if ((skip[rel->r_offset >> 3] |
| 9306 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9307 | { |
| 9308 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9309 | wrel->r_info = rel->r_info; | |
| 9310 | wrel->r_addend = rel->r_addend; | |
| 9311 | ++wrel; | |
| 9312 | } | |
| 9313 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9314 | &local_syms, NULL, NULL)) | |
| 9315 | goto error_ret; | |
| 9316 | ||
| 425b145b AM |
9317 | elf_section_data (toc)->relocs = toc_relocs; |
| 9318 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9319 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9320 | sz = rel_hdr->sh_entsize; | |
| 9321 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9322 | } |
| c5614fa4 | 9323 | } |
| 28be611c AM |
9324 | else if (toc_relocs != NULL |
| 9325 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9326 | free (toc_relocs); |
| c5614fa4 AM |
9327 | |
| 9328 | if (local_syms != NULL | |
| 9329 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9330 | { | |
| 9331 | if (!info->keep_memory) | |
| 9332 | free (local_syms); | |
| 9333 | else | |
| 9334 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9335 | } | |
| 9336 | free (skip); | |
| 9337 | } | |
| 9338 | ||
| 9339 | return TRUE; | |
| 9340 | } | |
| 9341 | ||
| 1bbe0902 AM |
9342 | /* Return true iff input section I references the TOC using |
| 9343 | instructions limited to +/-32k offsets. */ | |
| 9344 | ||
| 9345 | bfd_boolean | |
| 9346 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9347 | { | |
| 9348 | return (is_ppc64_elf (i->owner) | |
| 9349 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9350 | } | |
| 9351 | ||
| 927be08e AM |
9352 | /* Allocate space for one GOT entry. */ |
| 9353 | ||
| 9354 | static void | |
| 9355 | allocate_got (struct elf_link_hash_entry *h, | |
| 9356 | struct bfd_link_info *info, | |
| 9357 | struct got_entry *gent) | |
| 9358 | { | |
| 9359 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9360 | bfd_boolean dyn; | |
| 9361 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9362 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9363 | ? 16 : 8); | |
| 9364 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9365 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9366 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9367 | ||
| 9368 | gent->got.offset = got->size; | |
| 9369 | got->size += entsize; | |
| 9370 | ||
| 9371 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9372 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9373 | { |
| 33e44f2e | 9374 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9375 | htab->got_reli_size += rentsize; |
| 927be08e | 9376 | } |
| 19e08130 AM |
9377 | else if ((info->shared |
| 9378 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
| 9379 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9380 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9381 | { |
| 19e08130 | 9382 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9383 | relgot->size += rentsize; |
| 927be08e AM |
9384 | } |
| 9385 | } | |
| 9386 | ||
| 7865406b AM |
9387 | /* This function merges got entries in the same toc group. */ |
| 9388 | ||
| 9389 | static void | |
| 9390 | merge_got_entries (struct got_entry **pent) | |
| 9391 | { | |
| 9392 | struct got_entry *ent, *ent2; | |
| 9393 | ||
| 9394 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9395 | if (!ent->is_indirect) | |
| 9396 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9397 | if (!ent2->is_indirect | |
| 9398 | && ent2->addend == ent->addend | |
| 9399 | && ent2->tls_type == ent->tls_type | |
| 9400 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9401 | { | |
| 9402 | ent2->is_indirect = TRUE; | |
| 9403 | ent2->got.ent = ent; | |
| 9404 | } | |
| 9405 | } | |
| 9406 | ||
| 65f38f15 AM |
9407 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9408 | dynamic relocs. */ | |
| 5bd4f169 | 9409 | |
| b34976b6 | 9410 | static bfd_boolean |
| 4ce794b7 | 9411 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9412 | { |
| 65f38f15 AM |
9413 | struct bfd_link_info *info; |
| 9414 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9415 | asection *s; |
| 65f38f15 | 9416 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9417 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9418 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9419 | |
| e92d460e | 9420 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9421 | return TRUE; |
| 5bd4f169 | 9422 | |
| 65f38f15 AM |
9423 | info = (struct bfd_link_info *) inf; |
| 9424 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9425 | if (htab == NULL) |
| 9426 | return FALSE; | |
| 5bd4f169 | 9427 | |
| e054468f AM |
9428 | if ((htab->elf.dynamic_sections_created |
| 9429 | && h->dynindx != -1 | |
| 9430 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) | |
| 9431 | || h->type == STT_GNU_IFUNC) | |
| 5bd4f169 | 9432 | { |
| 411e1bfb AM |
9433 | struct plt_entry *pent; |
| 9434 | bfd_boolean doneone = FALSE; | |
| 9435 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9436 | if (pent->plt.refcount > 0) | |
| 9437 | { | |
| 25f23106 AM |
9438 | if (!htab->elf.dynamic_sections_created |
| 9439 | || h->dynindx == -1) | |
| e054468f | 9440 | { |
| 33e44f2e | 9441 | s = htab->elf.iplt; |
| e054468f | 9442 | pent->plt.offset = s->size; |
| b9e5796b | 9443 | s->size += PLT_ENTRY_SIZE (htab); |
| 33e44f2e | 9444 | s = htab->elf.irelplt; |
| e054468f AM |
9445 | } |
| 9446 | else | |
| 9447 | { | |
| 9448 | /* If this is the first .plt entry, make room for the special | |
| 9449 | first entry. */ | |
| 33e44f2e | 9450 | s = htab->elf.splt; |
| e054468f | 9451 | if (s->size == 0) |
| b9e5796b | 9452 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); |
| e054468f AM |
9453 | |
| 9454 | pent->plt.offset = s->size; | |
| 9455 | ||
| 9456 | /* Make room for this entry. */ | |
| b9e5796b | 9457 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f AM |
9458 | |
| 9459 | /* Make room for the .glink code. */ | |
| 9460 | s = htab->glink; | |
| 9461 | if (s->size == 0) | |
| 9462 | s->size += GLINK_CALL_STUB_SIZE; | |
| b9e5796b AM |
9463 | if (htab->opd_abi) |
| 9464 | { | |
| 9465 | /* We need bigger stubs past index 32767. */ | |
| 9466 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9467 | s->size += 4; | |
| 9468 | s->size += 2*4; | |
| 9469 | } | |
| 9470 | else | |
| e054468f | 9471 | s->size += 4; |
| e054468f AM |
9472 | |
| 9473 | /* We also need to make an entry in the .rela.plt section. */ | |
| 33e44f2e | 9474 | s = htab->elf.srelplt; |
| e054468f | 9475 | } |
| eea6121a | 9476 | s->size += sizeof (Elf64_External_Rela); |
| 411e1bfb AM |
9477 | doneone = TRUE; |
| 9478 | } | |
| 9479 | else | |
| 9480 | pent->plt.offset = (bfd_vma) -1; | |
| 9481 | if (!doneone) | |
| 65f38f15 | 9482 | { |
| 411e1bfb | 9483 | h->plt.plist = NULL; |
| f5385ebf | 9484 | h->needs_plt = 0; |
| 65f38f15 AM |
9485 | } |
| 9486 | } | |
| 9487 | else | |
| 9488 | { | |
| 411e1bfb | 9489 | h->plt.plist = NULL; |
| f5385ebf | 9490 | h->needs_plt = 0; |
| 65f38f15 AM |
9491 | } |
| 9492 | ||
| 951fd09b AM |
9493 | eh = (struct ppc_link_hash_entry *) h; |
| 9494 | /* Run through the TLS GD got entries first if we're changing them | |
| 9495 | to TPREL. */ | |
| e7b938ca | 9496 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9497 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9498 | if (gent->got.refcount > 0 | |
| 9499 | && (gent->tls_type & TLS_GD) != 0) | |
| 9500 | { | |
| 9501 | /* This was a GD entry that has been converted to TPREL. If | |
| 9502 | there happens to be a TPREL entry we can use that one. */ | |
| 9503 | struct got_entry *ent; | |
| 9504 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9505 | if (ent->got.refcount > 0 | |
| 9506 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9507 | && ent->addend == gent->addend |
| 9508 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9509 | { |
| 9510 | gent->got.refcount = 0; | |
| 9511 | break; | |
| 9512 | } | |
| 9513 | ||
| 9514 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9515 | if (gent->got.refcount != 0) | |
| 9516 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9517 | } | |
| 9518 | ||
| 7865406b AM |
9519 | /* Remove any list entry that won't generate a word in the GOT before |
| 9520 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9521 | entries. */ | |
| 0b8bcf0d AM |
9522 | pgent = &h->got.glist; |
| 9523 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9524 | if (gent->got.refcount > 0) |
| 7865406b AM |
9525 | { |
| 9526 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9527 | && !h->def_dynamic) | |
| 9528 | { | |
| 9529 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9530 | *pgent = gent->next; | |
| 9531 | } | |
| 9532 | else | |
| 9533 | pgent = &gent->next; | |
| 9534 | } | |
| 9535 | else | |
| 9536 | *pgent = gent->next; | |
| 9537 | ||
| 9538 | if (!htab->do_multi_toc) | |
| 9539 | merge_got_entries (&h->got.glist); | |
| 9540 | ||
| 9541 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9542 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9543 | { |
| 9544 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9545 | Undefined weak syms won't yet be marked as dynamic, |
| 9546 | nor will all TLS symbols. */ | |
| 411e1bfb | 9547 | if (h->dynindx == -1 |
| b099ab9f | 9548 | && !h->forced_local |
| 25f23106 | 9549 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9550 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9551 | { |
| c152c796 | 9552 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9553 | return FALSE; |
| 9554 | } | |
| 65f38f15 | 9555 | |
| 0c8d6e5c | 9556 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9557 | abort (); |
| 0ffa91dd | 9558 | |
| 927be08e | 9559 | allocate_got (h, info, gent); |
| 411e1bfb | 9560 | } |
| 65f38f15 | 9561 | |
| b099ab9f | 9562 | if (eh->dyn_relocs == NULL |
| 25f23106 | 9563 | || (!htab->elf.dynamic_sections_created |
| 14b5f73f | 9564 | && h->type != STT_GNU_IFUNC)) |
| b34976b6 | 9565 | return TRUE; |
| 65f38f15 AM |
9566 | |
| 9567 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 9568 | dynamic pc-relative relocs against symbols which turn out to be | |
| 9569 | defined in regular objects. For the normal shared case, discard | |
| 9570 | space for relocs that have become local due to symbol visibility | |
| 9571 | changes. */ | |
| 9572 | ||
| 9573 | if (info->shared) | |
| 9574 | { | |
| 9c7a29a3 | 9575 | /* Relocs that use pc_count are those that appear on a call insn, |
| 1d483afe | 9576 | or certain REL relocs (see must_be_dyn_reloc) that can be |
| 9c7a29a3 AM |
9577 | generated via assembly. We want calls to protected symbols to |
| 9578 | resolve directly to the function rather than going via the plt. | |
| 9579 | If people want function pointer comparisons to work as expected | |
| 9580 | then they should avoid writing weird assembly. */ | |
| 09695f56 | 9581 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 65f38f15 | 9582 | { |
| 6061a67d | 9583 | struct elf_dyn_relocs **pp; |
| 65f38f15 AM |
9584 | |
| 9585 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 5bd4f169 | 9586 | { |
| 65f38f15 AM |
9587 | p->count -= p->pc_count; |
| 9588 | p->pc_count = 0; | |
| 9589 | if (p->count == 0) | |
| 9590 | *pp = p->next; | |
| 9591 | else | |
| 9592 | pp = &p->next; | |
| 5bd4f169 | 9593 | } |
| 65f38f15 | 9594 | } |
| 4e795f50 AM |
9595 | |
| 9596 | /* Also discard relocs on undefined weak syms with non-default | |
| 9597 | visibility. */ | |
| cab87ef9 AM |
9598 | if (eh->dyn_relocs != NULL |
| 9599 | && h->root.type == bfd_link_hash_undefweak) | |
| dfbb6ac9 AM |
9600 | { |
| 9601 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9602 | eh->dyn_relocs = NULL; | |
| 9603 | ||
| 9604 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9605 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9606 | else if (h->dynindx == -1 | |
| 9607 | && !h->forced_local) | |
| 9608 | { | |
| 9609 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9610 | return FALSE; | |
| 9611 | } | |
| 9612 | } | |
| 65f38f15 | 9613 | } |
| 25f23106 AM |
9614 | else if (h->type == STT_GNU_IFUNC) |
| 9615 | { | |
| 9616 | if (!h->non_got_ref) | |
| 9617 | eh->dyn_relocs = NULL; | |
| 9618 | } | |
| f4656909 | 9619 | else if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 AM |
9620 | { |
| 9621 | /* For the non-shared case, discard space for relocs against | |
| 9622 | symbols which turn out to need copy relocs or are not | |
| 9623 | dynamic. */ | |
| 9624 | ||
| f5385ebf | 9625 | if (!h->non_got_ref |
| f5385ebf | 9626 | && !h->def_regular) |
| 65f38f15 AM |
9627 | { |
| 9628 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9629 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9630 | if (h->dynindx == -1 | |
| f5385ebf | 9631 | && !h->forced_local) |
| 65f38f15 | 9632 | { |
| c152c796 | 9633 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| b34976b6 | 9634 | return FALSE; |
| 65f38f15 AM |
9635 | } |
| 9636 | ||
| 9637 | /* If that succeeded, we know we'll be keeping all the | |
| 9638 | relocs. */ | |
| 9639 | if (h->dynindx != -1) | |
| 9640 | goto keep; | |
| 9641 | } | |
| 9642 | ||
| 9643 | eh->dyn_relocs = NULL; | |
| 9644 | ||
| ec338859 | 9645 | keep: ; |
| 65f38f15 AM |
9646 | } |
| 9647 | ||
| 9648 | /* Finally, allocate space. */ | |
| 9649 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9650 | { | |
| 9651 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 19e08130 | 9652 | if (eh->elf.type == STT_GNU_IFUNC) |
| 33e44f2e | 9653 | sreloc = htab->elf.irelplt; |
| eea6121a | 9654 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
| 65f38f15 AM |
9655 | } |
| 9656 | ||
| b34976b6 | 9657 | return TRUE; |
| 65f38f15 AM |
9658 | } |
| 9659 | ||
| a345bc8d AM |
9660 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9661 | to set up space for global entry stubs. These are put in glink, | |
| 9662 | after the branch table. */ | |
| 65f38f15 | 9663 | |
| b34976b6 | 9664 | static bfd_boolean |
| a345bc8d | 9665 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9666 | { |
| a345bc8d AM |
9667 | struct bfd_link_info *info; |
| 9668 | struct ppc_link_hash_table *htab; | |
| 9669 | struct plt_entry *pent; | |
| 9670 | asection *s; | |
| 65f38f15 | 9671 | |
| a345bc8d AM |
9672 | if (h->root.type == bfd_link_hash_indirect) |
| 9673 | return TRUE; | |
| 65f38f15 | 9674 | |
| a345bc8d AM |
9675 | if (!h->pointer_equality_needed) |
| 9676 | return TRUE; | |
| 65f38f15 | 9677 | |
| a345bc8d AM |
9678 | if (h->def_regular) |
| 9679 | return TRUE; | |
| 65f38f15 | 9680 | |
| a345bc8d AM |
9681 | info = inf; |
| 9682 | htab = ppc_hash_table (info); | |
| 9683 | if (htab == NULL) | |
| 9684 | return FALSE; | |
| 9685 | ||
| 9686 | s = htab->glink; | |
| 9687 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9688 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9689 | && pent->addend == 0) | |
| 9690 | { | |
| afe397ea AM |
9691 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9692 | and we are not generating a shared library or pie, then we | |
| 9693 | need to define the symbol in the executable on a call stub. | |
| 9694 | This is to avoid text relocations. */ | |
| a345bc8d | 9695 | s->size = (s->size + 15) & -16; |
| afe397ea AM |
9696 | h->root.u.def.section = s; |
| 9697 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9698 | s->size += 16; |
| 9699 | break; | |
| 9700 | } | |
| 9701 | return TRUE; | |
| 9702 | } | |
| 9703 | ||
| 9704 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9705 | read-only sections. */ | |
| 9706 | ||
| 9707 | static bfd_boolean | |
| 9708 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9709 | { | |
| 9710 | if (h->root.type == bfd_link_hash_indirect) | |
| 9711 | return TRUE; | |
| 9712 | ||
| 9713 | if (readonly_dynrelocs (h)) | |
| 9714 | { | |
| 9715 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9716 | ||
| 9717 | /* Not an error, just cut short the traversal. */ | |
| 9718 | return FALSE; | |
| 65f38f15 | 9719 | } |
| b34976b6 | 9720 | return TRUE; |
| 65f38f15 AM |
9721 | } |
| 9722 | ||
| 9723 | /* Set the sizes of the dynamic sections. */ | |
| 9724 | ||
| b34976b6 | 9725 | static bfd_boolean |
| ee67d69a | 9726 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9727 | struct bfd_link_info *info) |
| 65f38f15 AM |
9728 | { |
| 9729 | struct ppc_link_hash_table *htab; | |
| 9730 | bfd *dynobj; | |
| 9731 | asection *s; | |
| b34976b6 | 9732 | bfd_boolean relocs; |
| 65f38f15 | 9733 | bfd *ibfd; |
| 7865406b | 9734 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9735 | |
| 9736 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9737 | if (htab == NULL) |
| 9738 | return FALSE; | |
| 9739 | ||
| 65f38f15 AM |
9740 | dynobj = htab->elf.dynobj; |
| 9741 | if (dynobj == NULL) | |
| 9742 | abort (); | |
| 9743 | ||
| 9744 | if (htab->elf.dynamic_sections_created) | |
| 9745 | { | |
| 9746 | /* Set the contents of the .interp section to the interpreter. */ | |
| 36af4a4e | 9747 | if (info->executable) |
| 65f38f15 | 9748 | { |
| 3d4d4302 | 9749 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9750 | if (s == NULL) |
| 9751 | abort (); | |
| eea6121a | 9752 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9753 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9754 | } | |
| 9755 | } | |
| 9756 | ||
| 9757 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9758 | relocs. */ | |
| c72f2fb2 | 9759 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9760 | { |
| 411e1bfb AM |
9761 | struct got_entry **lgot_ents; |
| 9762 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9763 | struct plt_entry **local_plt; |
| 9764 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9765 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9766 | bfd_size_type locsymcount; |
| 9767 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9768 | |
| 0c8d6e5c | 9769 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9770 | continue; |
| 9771 | ||
| 9772 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9773 | { | |
| 19e08130 | 9774 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9775 | |
| 6edfbbad | 9776 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9777 | { |
| ec338859 AM |
9778 | if (!bfd_is_abs_section (p->sec) |
| 9779 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9780 | { | |
| 9781 | /* Input section has been discarded, either because | |
| 9782 | it is a copy of a linkonce section or due to | |
| 9783 | linker script /DISCARD/, so we'll be discarding | |
| 9784 | the relocs too. */ | |
| 9785 | } | |
| 248866a8 | 9786 | else if (p->count != 0) |
| ec338859 | 9787 | { |
| 19e08130 AM |
9788 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9789 | if (p->ifunc) | |
| 33e44f2e | 9790 | srel = htab->elf.irelplt; |
| eea6121a | 9791 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9792 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9793 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9794 | } |
| 65f38f15 AM |
9795 | } |
| 9796 | } | |
| 9797 | ||
| 411e1bfb AM |
9798 | lgot_ents = elf_local_got_ents (ibfd); |
| 9799 | if (!lgot_ents) | |
| 65f38f15 AM |
9800 | continue; |
| 9801 | ||
| 0ffa91dd | 9802 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9803 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9804 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9805 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9806 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9807 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9808 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9809 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9810 | { |
| 0b8bcf0d | 9811 | struct got_entry **pent, *ent; |
| 411e1bfb | 9812 | |
| 0b8bcf0d AM |
9813 | pent = lgot_ents; |
| 9814 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9815 | if (ent->got.refcount > 0) |
| 9816 | { | |
| e7b938ca | 9817 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9818 | { |
| 927be08e | 9819 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9820 | *pent = ent->next; |
| 411e1bfb AM |
9821 | } |
| 9822 | else | |
| 9823 | { | |
| 19e08130 AM |
9824 | unsigned int ent_size = 8; |
| 9825 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9826 | ||
| eea6121a | 9827 | ent->got.offset = s->size; |
| e7b938ca | 9828 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9829 | { |
| 19e08130 AM |
9830 | ent_size *= 2; |
| 9831 | rel_size *= 2; | |
| 9832 | } | |
| 9833 | s->size += ent_size; | |
| 9834 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9835 | { | |
| 33e44f2e | 9836 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
9837 | htab->got_reli_size += rel_size; |
| 9838 | } | |
| 9839 | else if (info->shared) | |
| 9840 | { | |
| 9841 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9842 | srel->size += rel_size; | |
| 927be08e | 9843 | } |
| 0b8bcf0d | 9844 | pent = &ent->next; |
| 411e1bfb AM |
9845 | } |
| 9846 | } | |
| 9847 | else | |
| 0b8bcf0d | 9848 | *pent = ent->next; |
| 65f38f15 | 9849 | } |
| e054468f AM |
9850 | |
| 9851 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9852 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9853 | { | |
| 9854 | struct plt_entry *ent; | |
| 9855 | ||
| 9856 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9857 | if (ent->plt.refcount > 0) | |
| 9858 | { | |
| 33e44f2e | 9859 | s = htab->elf.iplt; |
| e054468f | 9860 | ent->plt.offset = s->size; |
| b9e5796b | 9861 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 9862 | |
| 33e44f2e | 9863 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9864 | } |
| 9865 | else | |
| 9866 | ent->plt.offset = (bfd_vma) -1; | |
| 9867 | } | |
| 65f38f15 AM |
9868 | } |
| 9869 | ||
| 9870 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9871 | sym dynamic relocs. */ | |
| 4ce794b7 | 9872 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
9873 | /* Stash the end of glink branch table. */ |
| 9874 | if (htab->glink != NULL) | |
| 9875 | htab->glink->rawsize = htab->glink->size; | |
| 9876 | ||
| 9877 | if (!htab->opd_abi && !info->shared) | |
| 9878 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); | |
| 65f38f15 | 9879 | |
| 7865406b | 9880 | first_tlsld = NULL; |
| c72f2fb2 | 9881 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 9882 | { |
| 7865406b AM |
9883 | struct got_entry *ent; |
| 9884 | ||
| 0c8d6e5c | 9885 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
9886 | continue; |
| 9887 | ||
| 7865406b AM |
9888 | ent = ppc64_tlsld_got (ibfd); |
| 9889 | if (ent->got.refcount > 0) | |
| 102890f0 | 9890 | { |
| 7865406b | 9891 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 9892 | { |
| 7865406b AM |
9893 | ent->is_indirect = TRUE; |
| 9894 | ent->got.ent = first_tlsld; | |
| 9895 | } | |
| 9896 | else | |
| 9897 | { | |
| 9898 | if (first_tlsld == NULL) | |
| 9899 | first_tlsld = ent; | |
| 9900 | s = ppc64_elf_tdata (ibfd)->got; | |
| 9901 | ent->got.offset = s->size; | |
| 9902 | ent->owner = ibfd; | |
| 9903 | s->size += 16; | |
| 9904 | if (info->shared) | |
| 9905 | { | |
| 9906 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9907 | srel->size += sizeof (Elf64_External_Rela); | |
| 9908 | } | |
| 102890f0 AM |
9909 | } |
| 9910 | } | |
| 9911 | else | |
| 7865406b | 9912 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
9913 | } |
| 9914 | ||
| 65f38f15 AM |
9915 | /* We now have determined the sizes of the various dynamic sections. |
| 9916 | Allocate memory for them. */ | |
| b34976b6 | 9917 | relocs = FALSE; |
| 65f38f15 AM |
9918 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 9919 | { | |
| 9920 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9921 | continue; | |
| 9922 | ||
| 4ce794b7 | 9923 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
9924 | /* These haven't been allocated yet; don't strip. */ |
| 9925 | continue; | |
| 33e44f2e AM |
9926 | else if (s == htab->elf.sgot |
| 9927 | || s == htab->elf.splt | |
| 9928 | || s == htab->elf.iplt | |
| c456f082 AM |
9929 | || s == htab->glink |
| 9930 | || s == htab->dynbss) | |
| 65f38f15 AM |
9931 | { |
| 9932 | /* Strip this section if we don't need it; see the | |
| 9933 | comment below. */ | |
| 5bd4f169 | 9934 | } |
| 58d180e8 AM |
9935 | else if (s == htab->glink_eh_frame) |
| 9936 | { | |
| 9937 | if (!bfd_is_abs_section (s->output_section)) | |
| 9938 | /* Not sized yet. */ | |
| 9939 | continue; | |
| 9940 | } | |
| 70cc837d | 9941 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 9942 | { |
| c456f082 | 9943 | if (s->size != 0) |
| 5bd4f169 | 9944 | { |
| 33e44f2e | 9945 | if (s != htab->elf.srelplt) |
| b34976b6 | 9946 | relocs = TRUE; |
| 5bd4f169 AM |
9947 | |
| 9948 | /* We use the reloc_count field as a counter if we need | |
| 9949 | to copy relocs into the output file. */ | |
| 9950 | s->reloc_count = 0; | |
| 9951 | } | |
| 9952 | } | |
| 65f38f15 | 9953 | else |
| 5bd4f169 AM |
9954 | { |
| 9955 | /* It's not one of our sections, so don't allocate space. */ | |
| 9956 | continue; | |
| 9957 | } | |
| 9958 | ||
| eea6121a | 9959 | if (s->size == 0) |
| 5bd4f169 | 9960 | { |
| c456f082 AM |
9961 | /* If we don't need this section, strip it from the |
| 9962 | output file. This is mostly to handle .rela.bss and | |
| 9963 | .rela.plt. We must create both sections in | |
| 9964 | create_dynamic_sections, because they must be created | |
| 9965 | before the linker maps input sections to output | |
| 9966 | sections. The linker does that before | |
| 9967 | adjust_dynamic_symbol is called, and it is that | |
| 9968 | function which decides whether anything needs to go | |
| 9969 | into these sections. */ | |
| 8423293d | 9970 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
9971 | continue; |
| 9972 | } | |
| 9973 | ||
| c456f082 | 9974 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
9975 | continue; |
| 9976 | ||
| 65f38f15 AM |
9977 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 9978 | here in case unused entries are not reclaimed before the | |
| 9979 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
9980 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 9981 | sections instead of garbage. | |
| 9982 | We also rely on the section contents being zero when writing | |
| 9983 | the GOT. */ | |
| eea6121a | 9984 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 9985 | if (s->contents == NULL) |
| b34976b6 | 9986 | return FALSE; |
| 5bd4f169 AM |
9987 | } |
| 9988 | ||
| c72f2fb2 | 9989 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 9990 | { |
| 0c8d6e5c | 9991 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
9992 | continue; |
| 9993 | ||
| e717da7e | 9994 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 9995 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 9996 | { |
| eea6121a | 9997 | if (s->size == 0) |
| 8423293d | 9998 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
9999 | else |
| 10000 | { | |
| eea6121a | 10001 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10002 | if (s->contents == NULL) |
| 10003 | return FALSE; | |
| 10004 | } | |
| 10005 | } | |
| 10006 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10007 | if (s != NULL) | |
| 10008 | { | |
| eea6121a | 10009 | if (s->size == 0) |
| 8423293d | 10010 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10011 | else |
| 10012 | { | |
| eea6121a | 10013 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10014 | if (s->contents == NULL) |
| 10015 | return FALSE; | |
| 10016 | relocs = TRUE; | |
| 10017 | s->reloc_count = 0; | |
| 10018 | } | |
| 10019 | } | |
| 10020 | } | |
| 10021 | ||
| e86ce104 | 10022 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10023 | { |
| e8910a83 AM |
10024 | bfd_boolean tls_opt; |
| 10025 | ||
| 5bd4f169 AM |
10026 | /* Add some entries to the .dynamic section. We fill in the |
| 10027 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10028 | must add the entries now so that we get the correct size for | |
| 10029 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10030 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10031 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10032 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10033 | |
| 36af4a4e | 10034 | if (info->executable) |
| 5bd4f169 | 10035 | { |
| dc810e39 | 10036 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10037 | return FALSE; |
| 5bd4f169 AM |
10038 | } |
| 10039 | ||
| 33e44f2e | 10040 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10041 | { |
| dc810e39 AM |
10042 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10043 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10044 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10045 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10046 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10047 | return FALSE; |
| 5bd4f169 AM |
10048 | } |
| 10049 | ||
| ee67d69a | 10050 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10051 | { |
| 10052 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10053 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10054 | return FALSE; |
| 19397422 AM |
10055 | } |
| 10056 | ||
| e7d1c40c | 10057 | tls_opt = (!htab->params->no_tls_get_addr_opt |
| e8910a83 AM |
10058 | && htab->tls_get_addr_fd != NULL |
| 10059 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10060 | if (tls_opt || !htab->opd_abi) | |
| 10061 | { | |
| 10062 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10063 | return FALSE; | |
| 10064 | } | |
| a7f2871e | 10065 | |
| 5bd4f169 AM |
10066 | if (relocs) |
| 10067 | { | |
| dc810e39 AM |
10068 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10069 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10070 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10071 | return FALSE; |
| 5bd4f169 | 10072 | |
| 65f38f15 AM |
10073 | /* If any dynamic relocs apply to a read-only section, |
| 10074 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10075 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10076 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10077 | |
| 65f38f15 | 10078 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10079 | { |
| 65f38f15 | 10080 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10081 | return FALSE; |
| 5bd4f169 | 10082 | } |
| 5bd4f169 | 10083 | } |
| 5bd4f169 | 10084 | } |
| 65f38f15 | 10085 | #undef add_dynamic_entry |
| 5bd4f169 | 10086 | |
| b34976b6 | 10087 | return TRUE; |
| 5bd4f169 AM |
10088 | } |
| 10089 | ||
| a345bc8d AM |
10090 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10091 | ||
| 10092 | static bfd_boolean | |
| 10093 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10094 | { | |
| 10095 | if (h->plt.plist != NULL | |
| 10096 | && !h->def_regular | |
| 10097 | && !h->pointer_equality_needed) | |
| 10098 | return FALSE; | |
| 10099 | ||
| 10100 | return _bfd_elf_hash_symbol (h); | |
| 10101 | } | |
| 10102 | ||
| 721956f4 | 10103 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10104 | |
| 4ce794b7 AM |
10105 | static inline enum ppc_stub_type |
| 10106 | ppc_type_of_stub (asection *input_sec, | |
| 10107 | const Elf_Internal_Rela *rel, | |
| 10108 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10109 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10110 | bfd_vma destination, |
| 10111 | unsigned long local_off) | |
| 5bd4f169 | 10112 | { |
| 721956f4 AM |
10113 | struct ppc_link_hash_entry *h = *hash; |
| 10114 | bfd_vma location; | |
| 10115 | bfd_vma branch_offset; | |
| 10116 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10117 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10118 | |
| 721956f4 AM |
10119 | if (h != NULL) |
| 10120 | { | |
| e054468f | 10121 | struct plt_entry *ent; |
| 7fe2b9a6 | 10122 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10123 | if (h->oh != NULL |
| 10124 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10125 | { |
| 10126 | fdh = ppc_follow_link (h->oh); | |
| 10127 | *hash = fdh; | |
| 10128 | } | |
| 8387904d | 10129 | |
| e054468f AM |
10130 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10131 | if (ent->addend == rel->r_addend | |
| 10132 | && ent->plt.offset != (bfd_vma) -1) | |
| 10133 | { | |
| e054468f AM |
10134 | *plt_ent = ent; |
| 10135 | return ppc_stub_plt_call; | |
| 10136 | } | |
| 5bd4f169 | 10137 | |
| 7fe2b9a6 AM |
10138 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10139 | either a defined function descriptor or a defined entry symbol | |
| 10140 | in a regular object file, then it is pointless trying to make | |
| 10141 | any other type of stub. */ | |
| 854b41e7 AM |
10142 | if (!is_static_defined (&fdh->elf) |
| 10143 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10144 | return ppc_stub_none; |
| 5d1634d7 | 10145 | } |
| e054468f AM |
10146 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10147 | { | |
| 10148 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10149 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10150 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10151 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10152 | ||
| 10153 | if (local_plt[r_symndx] != NULL) | |
| 10154 | { | |
| 10155 | struct plt_entry *ent; | |
| 10156 | ||
| 10157 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10158 | if (ent->addend == rel->r_addend | |
| 10159 | && ent->plt.offset != (bfd_vma) -1) | |
| 10160 | { | |
| 10161 | *plt_ent = ent; | |
| 10162 | return ppc_stub_plt_call; | |
| 10163 | } | |
| 10164 | } | |
| 10165 | } | |
| 5d1634d7 | 10166 | |
| 721956f4 AM |
10167 | /* Determine where the call point is. */ |
| 10168 | location = (input_sec->output_offset | |
| 10169 | + input_sec->output_section->vma | |
| 10170 | + rel->r_offset); | |
| 5d1634d7 | 10171 | |
| 721956f4 AM |
10172 | branch_offset = destination - location; |
| 10173 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10174 | |
| 721956f4 AM |
10175 | /* Determine if a long branch stub is needed. */ |
| 10176 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10177 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10178 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10179 | |
| 6911b7dc | 10180 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10181 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10182 | is needed later. */ | |
| 10183 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10184 | |
| 721956f4 | 10185 | return ppc_stub_none; |
| 5d1634d7 AM |
10186 | } |
| 10187 | ||
| 794e51c0 AM |
10188 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10189 | to update a plt entry in one thread and have another thread see a | |
| 10190 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10191 | barrier in the call stub. One solution is to make the load of the | |
| 10192 | toc word seem to appear to depend on the load of the function entry | |
| 10193 | word. Another solution is to test for r2 being zero, and branch to | |
| 10194 | the appropriate glink entry if so. | |
| 10195 | ||
| 10196 | . fake dep barrier compare | |
| 71a39c98 AM |
10197 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10198 | . mtctr 12 mtctr 12 | |
| 10199 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10200 | . add 2,2,11 cmpldi 2,0 |
| 10201 | . ld 2,xxx+8(2) bnectr+ | |
| 10202 | . bctr b <glink_entry> | |
| 10203 | ||
| 10204 | The solution involving the compare turns out to be faster, so | |
| 10205 | that's what we use unless the branch won't reach. */ | |
| 10206 | ||
| 10207 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10208 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10209 | |
| 5d1634d7 AM |
10210 | #define PPC_LO(v) ((v) & 0xffff) |
| 10211 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10212 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10213 | ||
| 794e51c0 AM |
10214 | static inline unsigned int |
| 10215 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10216 | struct ppc_stub_hash_entry *stub_entry, | |
| 10217 | bfd_vma off) | |
| 10218 | { | |
| b9e5796b AM |
10219 | unsigned size = 12; |
| 10220 | ||
| 10221 | if (ALWAYS_EMIT_R2SAVE | |
| 10222 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10223 | size += 4; | |
| 10224 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10225 | size += 4; |
| b9e5796b AM |
10226 | if (htab->opd_abi) |
| 10227 | { | |
| 10228 | size += 4; | |
| e7d1c40c | 10229 | if (htab->params->plt_static_chain) |
| b9e5796b | 10230 | size += 4; |
| bd4d2eaa AM |
10231 | if (htab->params->plt_thread_safe |
| 10232 | && htab->elf.dynamic_sections_created | |
| 10233 | && stub_entry->h != NULL | |
| 10234 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10235 | size += 8; |
| e7d1c40c | 10236 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10237 | size += 4; |
| 10238 | } | |
| 794e51c0 AM |
10239 | if (stub_entry->h != NULL |
| 10240 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10241 | || stub_entry->h == htab->tls_get_addr) | |
| e7d1c40c | 10242 | && !htab->params->no_tls_get_addr_opt) |
| 794e51c0 AM |
10243 | size += 13 * 4; |
| 10244 | return size; | |
| 10245 | } | |
| 10246 | ||
| 10247 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10248 | then return the padding needed to do so. */ | |
| 10249 | static inline unsigned int | |
| 10250 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10251 | struct ppc_stub_hash_entry *stub_entry, | |
| 10252 | bfd_vma plt_off) | |
| 10253 | { | |
| e7d1c40c | 10254 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 AM |
10255 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 10256 | bfd_vma stub_off = stub_entry->stub_sec->size; | |
| 10257 | ||
| 10258 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10259 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10260 | return stub_align - (stub_off & (stub_align - 1)); |
| 10261 | return 0; | |
| 10262 | } | |
| 10263 | ||
| 10264 | /* Build a .plt call stub. */ | |
| 10265 | ||
| 10266 | static inline bfd_byte * | |
| 10267 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10268 | struct ppc_stub_hash_entry *stub_entry, | |
| 10269 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10270 | { | |
| e7d1c40c | 10271 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10272 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10273 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10274 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10275 | && htab->elf.dynamic_sections_created | |
| 10276 | && stub_entry->h != NULL | |
| 10277 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10278 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10279 | bfd_vma cmp_branch_off = 0; | |
| 10280 | ||
| 10281 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10282 | && plt_load_toc |
| 794e51c0 | 10283 | && plt_thread_safe |
| bd4d2eaa AM |
10284 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10285 | || stub_entry->h == htab->tls_get_addr) | |
| e7d1c40c | 10286 | && !htab->params->no_tls_get_addr_opt)) |
| 794e51c0 AM |
10287 | { |
| 10288 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10289 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10290 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10291 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10292 | bfd_vma to, from; | |
| 10293 | ||
| 68d62958 AM |
10294 | if (pltindex > 32768) |
| 10295 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10296 | to = (glinkoff |
| 10297 | + htab->glink->output_offset | |
| 10298 | + htab->glink->output_section->vma); | |
| 10299 | from = (p - stub_entry->stub_sec->contents | |
| 10300 | + 4 * (ALWAYS_EMIT_R2SAVE | |
| 10301 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10302 | + 4 * (PPC_HA (offset) != 0) | |
| 10303 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10304 | != PPC_HA (offset)) | |
| 10305 | + 4 * (plt_static_chain != 0) | |
| 10306 | + 20 | |
| 10307 | + stub_entry->stub_sec->output_offset | |
| 10308 | + stub_entry->stub_sec->output_section->vma); | |
| 10309 | cmp_branch_off = to - from; | |
| 10310 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10311 | } | |
| 10312 | ||
| ac2df442 AM |
10313 | if (PPC_HA (offset) != 0) |
| 10314 | { | |
| 176a0d42 AM |
10315 | if (r != NULL) |
| 10316 | { | |
| 794e51c0 AM |
10317 | if (ALWAYS_EMIT_R2SAVE |
| 10318 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10319 | r[0].r_offset += 4; | |
| 176a0d42 | 10320 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10321 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10322 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10323 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10324 | if (plt_load_toc) |
| 176a0d42 | 10325 | { |
| b9e5796b | 10326 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10327 | { |
| b9e5796b AM |
10328 | r[2].r_offset = r[1].r_offset + 4; |
| 10329 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10330 | r[2].r_addend = r[0].r_addend; | |
| 10331 | } | |
| 10332 | else | |
| 10333 | { | |
| 10334 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10335 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10336 | r[2].r_addend = r[0].r_addend + 8; | |
| 10337 | if (plt_static_chain) | |
| 10338 | { | |
| 10339 | r[3].r_offset = r[2].r_offset + 4; | |
| 10340 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10341 | r[3].r_addend = r[0].r_addend + 16; | |
| 10342 | } | |
| c7131b65 | 10343 | } |
| 176a0d42 AM |
10344 | } |
| 10345 | } | |
| 794e51c0 AM |
10346 | if (ALWAYS_EMIT_R2SAVE |
| 10347 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10348 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10349 | if (plt_load_toc) |
| 10350 | { | |
| 10351 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10352 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10353 | } | |
| 10354 | else | |
| 10355 | { | |
| 10356 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10357 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10358 | } | |
| b9e5796b AM |
10359 | if (plt_load_toc |
| 10360 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10361 | { |
| 71a39c98 | 10362 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10363 | offset = 0; |
| 10364 | } | |
| 71a39c98 | 10365 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10366 | if (plt_load_toc) |
| 794e51c0 | 10367 | { |
| b9e5796b AM |
10368 | if (use_fake_dep) |
| 10369 | { | |
| 10370 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10371 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10372 | } | |
| 10373 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10374 | if (plt_static_chain) | |
| 10375 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10376 | } |
| ac2df442 AM |
10377 | } |
| 10378 | else | |
| 10379 | { | |
| 176a0d42 AM |
10380 | if (r != NULL) |
| 10381 | { | |
| 794e51c0 AM |
10382 | if (ALWAYS_EMIT_R2SAVE |
| 10383 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10384 | r[0].r_offset += 4; | |
| 176a0d42 | 10385 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10386 | if (plt_load_toc) |
| 176a0d42 | 10387 | { |
| b9e5796b | 10388 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10389 | { |
| b9e5796b AM |
10390 | r[1].r_offset = r[0].r_offset + 4; |
| 10391 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10392 | r[1].r_addend = r[0].r_addend; | |
| 10393 | } | |
| 10394 | else | |
| 10395 | { | |
| 10396 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10397 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10398 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10399 | if (plt_static_chain) | |
| 10400 | { | |
| 10401 | r[2].r_offset = r[1].r_offset + 4; | |
| 10402 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10403 | r[2].r_addend = r[0].r_addend + 8; | |
| 10404 | } | |
| c7131b65 | 10405 | } |
| 176a0d42 AM |
10406 | } |
| 10407 | } | |
| 794e51c0 AM |
10408 | if (ALWAYS_EMIT_R2SAVE |
| 10409 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10410 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10411 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10412 | if (plt_load_toc |
| 10413 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10414 | { |
| 10415 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10416 | offset = 0; | |
| 10417 | } | |
| 71a39c98 | 10418 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10419 | if (plt_load_toc) |
| 794e51c0 | 10420 | { |
| b9e5796b AM |
10421 | if (use_fake_dep) |
| 10422 | { | |
| 10423 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10424 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10425 | } | |
| 10426 | if (plt_static_chain) | |
| 10427 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10428 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10429 | } |
| ac2df442 | 10430 | } |
| b9e5796b | 10431 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10432 | { |
| 10433 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10434 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10435 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10436 | } |
| 10437 | else | |
| 10438 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10439 | return p; |
| 10440 | } | |
| 10441 | ||
| a7f2871e AM |
10442 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10443 | ||
| 10444 | #define LD_R11_0R3 0xe9630000 | |
| 10445 | #define LD_R12_0R3 0xe9830000 | |
| 10446 | #define MR_R0_R3 0x7c601b78 | |
| 10447 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10448 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10449 | #define BEQLR 0x4d820020 | |
| 10450 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10451 | #define STD_R11_0R1 0xf9610000 |
| 10452 | #define BCTRL 0x4e800421 | |
| 10453 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10454 | #define MTLR_R11 0x7d6803a6 |
| 10455 | ||
| 10456 | static inline bfd_byte * | |
| 794e51c0 AM |
10457 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10458 | struct ppc_stub_hash_entry *stub_entry, | |
| 10459 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10460 | { |
| e7d1c40c | 10461 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10462 | |
| a7f2871e AM |
10463 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10464 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10465 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10466 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10467 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10468 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10469 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10470 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10471 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10472 | |
| 10473 | if (r != NULL) | |
| 10474 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10475 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10476 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10477 | ||
| a078d95a | 10478 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10479 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10480 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10481 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10482 | ||
| 10483 | return p; | |
| 10484 | } | |
| 10485 | ||
| 176a0d42 AM |
10486 | static Elf_Internal_Rela * |
| 10487 | get_relocs (asection *sec, int count) | |
| 10488 | { | |
| 10489 | Elf_Internal_Rela *relocs; | |
| 10490 | struct bfd_elf_section_data *elfsec_data; | |
| 10491 | ||
| 10492 | elfsec_data = elf_section_data (sec); | |
| 10493 | relocs = elfsec_data->relocs; | |
| 10494 | if (relocs == NULL) | |
| 10495 | { | |
| 10496 | bfd_size_type relsize; | |
| 10497 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10498 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10499 | if (relocs == NULL) | |
| 10500 | return NULL; | |
| 10501 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10502 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10503 | sizeof (Elf_Internal_Shdr)); | |
| 10504 | if (elfsec_data->rela.hdr == NULL) | |
| 10505 | return NULL; | |
| 10506 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10507 | * sizeof (Elf64_External_Rela)); | |
| 10508 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10509 | sec->reloc_count = 0; |
| 10510 | } | |
| 10511 | relocs += sec->reloc_count; | |
| 10512 | sec->reloc_count += count; | |
| 10513 | return relocs; | |
| 10514 | } | |
| 10515 | ||
| aa374f67 | 10516 | static bfd_vma |
| 25f53a85 | 10517 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10518 | struct ppc_stub_hash_entry *stub_entry) |
| 10519 | { | |
| 25f53a85 | 10520 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| aa374f67 AM |
10521 | bfd_vma r2off = htab->stub_group[stub_entry->target_section->id].toc_off; |
| 10522 | ||
| 10523 | if (r2off == 0) | |
| 10524 | { | |
| 10525 | /* Support linking -R objects. Get the toc pointer from the | |
| 10526 | opd entry. */ | |
| 10527 | char buf[8]; | |
| b9e5796b AM |
10528 | if (!htab->opd_abi) |
| 10529 | return r2off; | |
| aa374f67 AM |
10530 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10531 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10532 | ||
| 10533 | if (strcmp (opd->name, ".opd") != 0 | |
| 10534 | || opd->reloc_count != 0) | |
| 10535 | { | |
| bc30df16 | 10536 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10537 | stub_entry->h->elf.root.root.string); |
| aa374f67 AM |
10538 | bfd_set_error (bfd_error_bad_value); |
| 10539 | return 0; | |
| 10540 | } | |
| 10541 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| 10542 | return 0; | |
| 10543 | r2off = bfd_get_64 (opd->owner, buf); | |
| 25f53a85 | 10544 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 AM |
10545 | } |
| 10546 | r2off -= htab->stub_group[stub_entry->id_sec->id].toc_off; | |
| 10547 | return r2off; | |
| 10548 | } | |
| 10549 | ||
| b34976b6 | 10550 | static bfd_boolean |
| 4ce794b7 | 10551 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10552 | { |
| 721956f4 AM |
10553 | struct ppc_stub_hash_entry *stub_entry; |
| 10554 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10555 | struct bfd_link_info *info; |
| 10556 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10557 | bfd_byte *loc; |
| 10558 | bfd_byte *p; | |
| ee75fd95 | 10559 | bfd_vma dest, off; |
| 721956f4 | 10560 | int size; |
| 176a0d42 | 10561 | Elf_Internal_Rela *r; |
| e054468f | 10562 | asection *plt; |
| 5d1634d7 | 10563 | |
| 721956f4 AM |
10564 | /* Massage our args to the form they really have. */ |
| 10565 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10566 | info = in_arg; |
| 5d1634d7 | 10567 | |
| 5d1634d7 | 10568 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10569 | if (htab == NULL) |
| 10570 | return FALSE; | |
| 5d1634d7 | 10571 | |
| 721956f4 | 10572 | /* Make a note of the offset within the stubs for this entry. */ |
| eea6121a | 10573 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
| 97b639ba | 10574 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; |
| 721956f4 | 10575 | |
| 4ce794b7 | 10576 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10577 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10578 | { |
| 721956f4 | 10579 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10580 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10581 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10582 | dest = (stub_entry->target_value |
| 10583 | + stub_entry->target_section->output_offset | |
| 10584 | + stub_entry->target_section->output_section->vma); | |
| 10585 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10586 | off = dest; | |
| 5d1634d7 | 10587 | |
| 721956f4 AM |
10588 | /* And this is where we are coming from. */ |
| 10589 | off -= (stub_entry->stub_offset | |
| 97b639ba AM |
10590 | + stub_entry->stub_sec->output_offset |
| 10591 | + stub_entry->stub_sec->output_section->vma); | |
| e86ce104 | 10592 | |
| ac2df442 AM |
10593 | size = 4; |
| 10594 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10595 | { |
| 25f53a85 | 10596 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10597 | |
| aa374f67 AM |
10598 | if (r2off == 0) |
| 10599 | { | |
| 10600 | htab->stub_error = TRUE; | |
| 10601 | return FALSE; | |
| 10602 | } | |
| e7d1c40c | 10603 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10604 | loc += 4; |
| ac2df442 AM |
10605 | size = 12; |
| 10606 | if (PPC_HA (r2off) != 0) | |
| 10607 | { | |
| 10608 | size = 16; | |
| e7d1c40c AM |
10609 | bfd_put_32 (htab->params->stub_bfd, |
| 10610 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 AM |
10611 | loc += 4; |
| 10612 | } | |
| e7d1c40c | 10613 | bfd_put_32 (htab->params->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
| ad8e1ba5 | 10614 | loc += 4; |
| ac2df442 | 10615 | off -= size - 4; |
| ad8e1ba5 | 10616 | } |
| e7d1c40c | 10617 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10618 | |
| 5c3dead3 AM |
10619 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10620 | { | |
| bc30df16 AM |
10621 | info->callbacks->einfo |
| 10622 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10623 | stub_entry->root.string); | |
| 5c3dead3 AM |
10624 | htab->stub_error = TRUE; |
| 10625 | return FALSE; | |
| 10626 | } | |
| ee75fd95 AM |
10627 | |
| 10628 | if (info->emitrelocations) | |
| 10629 | { | |
| 176a0d42 AM |
10630 | r = get_relocs (stub_entry->stub_sec, 1); |
| 10631 | if (r == NULL) | |
| 10632 | return FALSE; | |
| ee75fd95 AM |
10633 | r->r_offset = loc - stub_entry->stub_sec->contents; |
| 10634 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); | |
| 10635 | r->r_addend = dest; | |
| 10636 | if (stub_entry->h != NULL) | |
| 10637 | { | |
| 10638 | struct elf_link_hash_entry **hashes; | |
| 10639 | unsigned long symndx; | |
| 10640 | struct ppc_link_hash_entry *h; | |
| 10641 | ||
| e7d1c40c | 10642 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10643 | if (hashes == NULL) |
| 10644 | { | |
| 10645 | bfd_size_type hsize; | |
| 10646 | ||
| 10647 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10648 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10649 | if (hashes == NULL) |
| 10650 | return FALSE; | |
| e7d1c40c | 10651 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10652 | htab->stub_globals = 1; |
| 10653 | } | |
| 10654 | symndx = htab->stub_globals++; | |
| 10655 | h = stub_entry->h; | |
| 10656 | hashes[symndx] = &h->elf; | |
| 10657 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10658 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10659 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10660 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10661 | /* H is an opd symbol. The addend must be zero. */ | |
| 10662 | r->r_addend = 0; | |
| 10663 | else | |
| 10664 | { | |
| 10665 | off = (h->elf.root.u.def.value | |
| 10666 | + h->elf.root.u.def.section->output_offset | |
| 10667 | + h->elf.root.u.def.section->output_section->vma); | |
| 10668 | r->r_addend -= off; | |
| 10669 | } | |
| 10670 | } | |
| 10671 | } | |
| 721956f4 | 10672 | break; |
| e86ce104 | 10673 | |
| 721956f4 | 10674 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10675 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10676 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10677 | stub_entry->root.string + 9, | |
| b34976b6 | 10678 | FALSE, FALSE); |
| 721956f4 AM |
10679 | if (br_entry == NULL) |
| 10680 | { | |
| 8de848d8 | 10681 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10682 | stub_entry->root.string); |
| b34976b6 AM |
10683 | htab->stub_error = TRUE; |
| 10684 | return FALSE; | |
| 721956f4 AM |
10685 | } |
| 10686 | ||
| 176a0d42 AM |
10687 | dest = (stub_entry->target_value |
| 10688 | + stub_entry->target_section->output_offset | |
| 10689 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10690 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10691 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10692 | |
| 176a0d42 | 10693 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10694 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10695 | |
| f94498ff | 10696 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10697 | { |
| f94498ff | 10698 | br_entry->iter = 0; |
| 84f5d08e | 10699 | |
| f94498ff | 10700 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10701 | { |
| f94498ff AM |
10702 | /* Create a reloc for the branch lookup table entry. */ |
| 10703 | Elf_Internal_Rela rela; | |
| 10704 | bfd_byte *rl; | |
| 10705 | ||
| 10706 | rela.r_offset = (br_entry->offset | |
| 10707 | + htab->brlt->output_offset | |
| 10708 | + htab->brlt->output_section->vma); | |
| 10709 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10710 | rela.r_addend = dest; |
| f94498ff AM |
10711 | |
| 10712 | rl = htab->relbrlt->contents; | |
| 10713 | rl += (htab->relbrlt->reloc_count++ | |
| 10714 | * sizeof (Elf64_External_Rela)); | |
| 10715 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10716 | } | |
| 10717 | else if (info->emitrelocations) | |
| 10718 | { | |
| 176a0d42 AM |
10719 | r = get_relocs (htab->brlt, 1); |
| 10720 | if (r == NULL) | |
| 10721 | return FALSE; | |
| 10722 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10723 | normal reloc processing. Symbols and offsets are not | |
| 10724 | translated from input file to output file form, so | |
| 10725 | set up the offset per the output file. */ | |
| f94498ff AM |
10726 | r->r_offset = (br_entry->offset |
| 10727 | + htab->brlt->output_offset | |
| 10728 | + htab->brlt->output_section->vma); | |
| 10729 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10730 | r->r_addend = dest; |
| 84f5d08e | 10731 | } |
| 84f5d08e | 10732 | } |
| 721956f4 | 10733 | |
| 176a0d42 AM |
10734 | dest = (br_entry->offset |
| 10735 | + htab->brlt->output_offset | |
| 10736 | + htab->brlt->output_section->vma); | |
| 10737 | ||
| 10738 | off = (dest | |
| 4ce794b7 | 10739 | - elf_gp (htab->brlt->output_section->owner) |
| ad8e1ba5 | 10740 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10741 | |
| ad8e1ba5 | 10742 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10743 | { |
| 25f53a85 | 10744 | info->callbacks->einfo |
| bc30df16 | 10745 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10746 | stub_entry->root.string); |
| 5d1634d7 | 10747 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10748 | htab->stub_error = TRUE; |
| 10749 | return FALSE; | |
| 5d1634d7 | 10750 | } |
| 41bd81ab | 10751 | |
| 176a0d42 AM |
10752 | if (info->emitrelocations) |
| 10753 | { | |
| 10754 | r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0)); | |
| 10755 | if (r == NULL) | |
| 10756 | return FALSE; | |
| 10757 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10758 | if (bfd_big_endian (info->output_bfd)) |
| 10759 | r[0].r_offset += 2; | |
| 00f412ee | 10760 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
10761 | r[0].r_offset += 4; |
| 10762 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10763 | r[0].r_addend = dest; | |
| 10764 | if (PPC_HA (off) != 0) | |
| 10765 | { | |
| 10766 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10767 | r[1].r_offset = r[0].r_offset + 4; | |
| 10768 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10769 | r[1].r_addend = r[0].r_addend; | |
| 10770 | } | |
| 10771 | } | |
| 10772 | ||
| 00f412ee | 10773 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 10774 | { |
| 176a0d42 | 10775 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10776 | { |
| 10777 | size = 16; | |
| e7d1c40c | 10778 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10779 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10780 | loc += 4; |
| e7d1c40c | 10781 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10782 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10783 | } |
| 10784 | else | |
| 10785 | { | |
| 10786 | size = 12; | |
| e7d1c40c AM |
10787 | bfd_put_32 (htab->params->stub_bfd, |
| 10788 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 10789 | } |
| ad8e1ba5 AM |
10790 | } |
| 10791 | else | |
| 10792 | { | |
| 25f53a85 | 10793 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 10794 | |
| 00f412ee | 10795 | if (r2off == 0 && htab->opd_abi) |
| aa374f67 AM |
10796 | { |
| 10797 | htab->stub_error = TRUE; | |
| 10798 | return FALSE; | |
| 10799 | } | |
| ad8e1ba5 | 10800 | |
| e7d1c40c | 10801 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10802 | loc += 4; |
| 00f412ee | 10803 | size = 16; |
| 176a0d42 | 10804 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10805 | { |
| 10806 | size += 4; | |
| e7d1c40c | 10807 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10808 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10809 | loc += 4; |
| e7d1c40c | 10810 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10811 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10812 | } |
| 10813 | else | |
| e7d1c40c | 10814 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10815 | |
| 10816 | if (PPC_HA (r2off) != 0) | |
| 10817 | { | |
| 10818 | size += 4; | |
| 00f412ee | 10819 | loc += 4; |
| e7d1c40c AM |
10820 | bfd_put_32 (htab->params->stub_bfd, |
| 10821 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
10822 | } |
| 10823 | if (PPC_LO (r2off) != 0) | |
| 10824 | { | |
| 10825 | size += 4; | |
| ac2df442 | 10826 | loc += 4; |
| e7d1c40c AM |
10827 | bfd_put_32 (htab->params->stub_bfd, |
| 10828 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 10829 | } |
| ad8e1ba5 AM |
10830 | } |
| 10831 | loc += 4; | |
| e7d1c40c | 10832 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10833 | loc += 4; |
| e7d1c40c | 10834 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 10835 | break; |
| 5d1634d7 | 10836 | |
| 721956f4 | 10837 | case ppc_stub_plt_call: |
| 794e51c0 | 10838 | case ppc_stub_plt_call_r2save: |
| e054468f | 10839 | if (stub_entry->h != NULL |
| b31867b6 AM |
10840 | && stub_entry->h->is_func_descriptor |
| 10841 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10842 | { |
| b31867b6 AM |
10843 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10844 | ||
| 10845 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 10846 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. | |
| 10847 | FIXME: We used to define the symbol on one of the call | |
| 10848 | stubs instead, which is why we test symbol section id | |
| 10849 | against htab->top_id in various places. Likely all | |
| 10850 | these checks could now disappear. */ | |
| 10851 | if (fh->elf.root.type == bfd_link_hash_undefined) | |
| 10852 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10853 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10854 | fh->was_undefined = 0; | |
| c862ae31 AM |
10855 | } |
| 10856 | ||
| 721956f4 | 10857 | /* Now build the stub. */ |
| e054468f | 10858 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10859 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10860 | abort (); |
| 10861 | ||
| 33e44f2e | 10862 | plt = htab->elf.splt; |
| 25f23106 AM |
10863 | if (!htab->elf.dynamic_sections_created |
| 10864 | || stub_entry->h == NULL | |
| 10865 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 10866 | plt = htab->elf.iplt; |
| e054468f AM |
10867 | |
| 10868 | dest += plt->output_offset + plt->output_section->vma; | |
| 10869 | ||
| 10870 | if (stub_entry->h == NULL | |
| 10871 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 10872 | { | |
| 10873 | Elf_Internal_Rela rela; | |
| 10874 | bfd_byte *rl; | |
| 10875 | ||
| 10876 | rela.r_offset = dest; | |
| ee67d69a AM |
10877 | if (htab->opd_abi) |
| 10878 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 10879 | else | |
| 10880 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
10881 | rela.r_addend = (stub_entry->target_value |
| 10882 | + stub_entry->target_section->output_offset | |
| 10883 | + stub_entry->target_section->output_section->vma); | |
| 10884 | ||
| 33e44f2e AM |
10885 | rl = (htab->elf.irelplt->contents |
| 10886 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
10887 | * sizeof (Elf64_External_Rela))); |
| 10888 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
10889 | stub_entry->plt_ent->plt.offset |= 1; |
| 10890 | } | |
| 176a0d42 AM |
10891 | |
| 10892 | off = (dest | |
| e054468f | 10893 | - elf_gp (plt->output_section->owner) |
| 176a0d42 | 10894 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10895 | |
| ad8e1ba5 | 10896 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 10897 | { |
| 25f53a85 | 10898 | info->callbacks->einfo |
| bc30df16 | 10899 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
10900 | stub_entry->h != NULL |
| 10901 | ? stub_entry->h->elf.root.root.string | |
| 10902 | : "<local sym>"); | |
| 721956f4 | 10903 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10904 | htab->stub_error = TRUE; |
| 10905 | return FALSE; | |
| 721956f4 AM |
10906 | } |
| 10907 | ||
| e7d1c40c | 10908 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
10909 | { |
| 10910 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 10911 | ||
| 10912 | stub_entry->stub_sec->size += pad; | |
| 10913 | stub_entry->stub_offset = stub_entry->stub_sec->size; | |
| 10914 | loc += pad; | |
| 10915 | } | |
| 10916 | ||
| 176a0d42 AM |
10917 | r = NULL; |
| 10918 | if (info->emitrelocations) | |
| 10919 | { | |
| 10920 | r = get_relocs (stub_entry->stub_sec, | |
| 3ba720c7 AM |
10921 | ((PPC_HA (off) != 0) |
| 10922 | + (htab->opd_abi | |
| e7d1c40c | 10923 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
10924 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 10925 | : 1))); | |
| 176a0d42 AM |
10926 | if (r == NULL) |
| 10927 | return FALSE; | |
| 10928 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10929 | if (bfd_big_endian (info->output_bfd)) |
| 10930 | r[0].r_offset += 2; | |
| 176a0d42 AM |
10931 | r[0].r_addend = dest; |
| 10932 | } | |
| a7f2871e AM |
10933 | if (stub_entry->h != NULL |
| 10934 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10935 | || stub_entry->h == htab->tls_get_addr) | |
| e7d1c40c | 10936 | && !htab->params->no_tls_get_addr_opt) |
| 794e51c0 | 10937 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 10938 | else |
| 794e51c0 | 10939 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
10940 | size = p - loc; |
| 10941 | break; | |
| 10942 | ||
| 10943 | default: | |
| 10944 | BFD_FAIL (); | |
| b34976b6 | 10945 | return FALSE; |
| 721956f4 AM |
10946 | } |
| 10947 | ||
| eea6121a | 10948 | stub_entry->stub_sec->size += size; |
| 97b639ba | 10949 | |
| e7d1c40c | 10950 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
10951 | { |
| 10952 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
10953 | size_t len1, len2; |
| 10954 | char *name; | |
| 10955 | const char *const stub_str[] = { "long_branch", | |
| 10956 | "long_branch_r2off", | |
| 10957 | "plt_branch", | |
| 10958 | "plt_branch_r2off", | |
| 794e51c0 | 10959 | "plt_call", |
| ee75fd95 AM |
10960 | "plt_call" }; |
| 10961 | ||
| 10962 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 10963 | len2 = strlen (stub_entry->root.string); | |
| 10964 | name = bfd_malloc (len1 + len2 + 2); | |
| 10965 | if (name == NULL) | |
| 10966 | return FALSE; | |
| 10967 | memcpy (name, stub_entry->root.string, 9); | |
| 10968 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 10969 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 10970 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
10971 | if (h == NULL) |
| 10972 | return FALSE; | |
| 10973 | if (h->root.type == bfd_link_hash_new) | |
| 10974 | { | |
| 10975 | h->root.type = bfd_link_hash_defined; | |
| 10976 | h->root.u.def.section = stub_entry->stub_sec; | |
| 10977 | h->root.u.def.value = stub_entry->stub_offset; | |
| f5385ebf AM |
10978 | h->ref_regular = 1; |
| 10979 | h->def_regular = 1; | |
| 10980 | h->ref_regular_nonweak = 1; | |
| 10981 | h->forced_local = 1; | |
| 10982 | h->non_elf = 0; | |
| 2ec55de3 | 10983 | h->root.linker_def = 1; |
| 97b639ba AM |
10984 | } |
| 10985 | } | |
| 10986 | ||
| b34976b6 | 10987 | return TRUE; |
| 721956f4 AM |
10988 | } |
| 10989 | ||
| 10990 | /* As above, but don't actually build the stub. Just bump offset so | |
| 10991 | we know stub section sizes, and select plt_branch stubs where | |
| 10992 | long_branch stubs won't do. */ | |
| 10993 | ||
| b34976b6 | 10994 | static bfd_boolean |
| 4ce794b7 | 10995 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
10996 | { |
| 10997 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 10998 | struct bfd_link_info *info; |
| 721956f4 AM |
10999 | struct ppc_link_hash_table *htab; |
| 11000 | bfd_vma off; | |
| 11001 | int size; | |
| 11002 | ||
| 11003 | /* Massage our args to the form they really have. */ | |
| 11004 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11005 | info = in_arg; |
| 11006 | ||
| 11007 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11008 | if (htab == NULL) |
| 11009 | return FALSE; | |
| 721956f4 | 11010 | |
| 794e51c0 AM |
11011 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11012 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11013 | { |
| e054468f AM |
11014 | asection *plt; |
| 11015 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11016 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11017 | abort (); |
| 33e44f2e | 11018 | plt = htab->elf.splt; |
| 25f23106 AM |
11019 | if (!htab->elf.dynamic_sections_created |
| 11020 | || stub_entry->h == NULL | |
| 11021 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11022 | plt = htab->elf.iplt; |
| e054468f AM |
11023 | off += (plt->output_offset |
| 11024 | + plt->output_section->vma | |
| 11025 | - elf_gp (plt->output_section->owner) | |
| ad8e1ba5 | 11026 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 11027 | |
| 794e51c0 | 11028 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11029 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11030 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11031 | if (info->emitrelocations) |
| 11032 | { | |
| 11033 | stub_entry->stub_sec->reloc_count | |
| b9e5796b AM |
11034 | += ((PPC_HA (off) != 0) |
| 11035 | + (htab->opd_abi | |
| e7d1c40c | 11036 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11037 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11038 | : 1)); | |
| 176a0d42 AM |
11039 | stub_entry->stub_sec->flags |= SEC_RELOC; |
| 11040 | } | |
| 721956f4 AM |
11041 | } |
| 11042 | else | |
| 11043 | { | |
| ad8e1ba5 AM |
11044 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11045 | variants. */ | |
| ac2df442 | 11046 | bfd_vma r2off = 0; |
| 6911b7dc | 11047 | bfd_vma local_off = 0; |
| ac2df442 | 11048 | |
| 721956f4 AM |
11049 | off = (stub_entry->target_value |
| 11050 | + stub_entry->target_section->output_offset | |
| 11051 | + stub_entry->target_section->output_section->vma); | |
| eea6121a | 11052 | off -= (stub_entry->stub_sec->size |
| 721956f4 AM |
11053 | + stub_entry->stub_sec->output_offset |
| 11054 | + stub_entry->stub_sec->output_section->vma); | |
| 11055 | ||
| ad8e1ba5 AM |
11056 | /* Reset the stub type from the plt variant in case we now |
| 11057 | can reach with a shorter stub. */ | |
| 11058 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11059 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11060 | ||
| 11061 | size = 4; | |
| 11062 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11063 | { | |
| 25f53a85 | 11064 | r2off = get_r2off (info, stub_entry); |
| b9e5796b | 11065 | if (r2off == 0 && htab->opd_abi) |
| aa374f67 AM |
11066 | { |
| 11067 | htab->stub_error = TRUE; | |
| 11068 | return FALSE; | |
| 11069 | } | |
| ac2df442 AM |
11070 | size = 12; |
| 11071 | if (PPC_HA (r2off) != 0) | |
| 11072 | size = 16; | |
| 11073 | off -= size - 4; | |
| ad8e1ba5 AM |
11074 | } |
| 11075 | ||
| 6911b7dc AM |
11076 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11077 | ||
| b9e5796b AM |
11078 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11079 | Do the same for -R objects without function descriptors. */ | |
| 11080 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11081 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| 11082 | && r2off == 0)) | |
| 721956f4 AM |
11083 | { |
| 11084 | struct ppc_branch_hash_entry *br_entry; | |
| 11085 | ||
| 11086 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11087 | stub_entry->root.string + 9, | |
| b34976b6 | 11088 | TRUE, FALSE); |
| 721956f4 AM |
11089 | if (br_entry == NULL) |
| 11090 | { | |
| 8de848d8 | 11091 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11092 | stub_entry->root.string); |
| b34976b6 AM |
11093 | htab->stub_error = TRUE; |
| 11094 | return FALSE; | |
| 721956f4 AM |
11095 | } |
| 11096 | ||
| 11097 | if (br_entry->iter != htab->stub_iteration) | |
| 11098 | { | |
| 11099 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11100 | br_entry->offset = htab->brlt->size; |
| 11101 | htab->brlt->size += 8; | |
| 63bc6f6c | 11102 | |
| ee75fd95 | 11103 | if (htab->relbrlt != NULL) |
| eea6121a | 11104 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11105 | else if (info->emitrelocations) |
| 11106 | { | |
| 11107 | htab->brlt->reloc_count += 1; | |
| 11108 | htab->brlt->flags |= SEC_RELOC; | |
| 11109 | } | |
| 721956f4 | 11110 | } |
| ad8e1ba5 AM |
11111 | |
| 11112 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11113 | off = (br_entry->offset |
| 11114 | + htab->brlt->output_offset | |
| 11115 | + htab->brlt->output_section->vma | |
| 11116 | - elf_gp (htab->brlt->output_section->owner) | |
| 11117 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
| 11118 | ||
| 176a0d42 AM |
11119 | if (info->emitrelocations) |
| 11120 | { | |
| 11121 | stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0); | |
| 11122 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 11123 | } | |
| 11124 | ||
| 00f412ee | 11125 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11126 | { |
| 11127 | size = 12; | |
| 176a0d42 | 11128 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11129 | size = 16; |
| 11130 | } | |
| 11131 | else | |
| 11132 | { | |
| 00f412ee | 11133 | size = 16; |
| 176a0d42 | 11134 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11135 | size += 4; |
| 11136 | ||
| 11137 | if (PPC_HA (r2off) != 0) | |
| 11138 | size += 4; | |
| 00f412ee AM |
11139 | if (PPC_LO (r2off) != 0) |
| 11140 | size += 4; | |
| ac2df442 | 11141 | } |
| 721956f4 | 11142 | } |
| 84f5d08e AM |
11143 | else if (info->emitrelocations) |
| 11144 | { | |
| 11145 | stub_entry->stub_sec->reloc_count += 1; | |
| 11146 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 11147 | } | |
| 721956f4 AM |
11148 | } |
| 11149 | ||
| eea6121a | 11150 | stub_entry->stub_sec->size += size; |
| b34976b6 | 11151 | return TRUE; |
| 721956f4 AM |
11152 | } |
| 11153 | ||
| 11154 | /* Set up various things so that we can make a list of input sections | |
| 11155 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11156 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11157 | |
| 11158 | int | |
| e7d1c40c | 11159 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 AM |
11160 | { |
| 11161 | bfd *input_bfd; | |
| 734b6cf9 | 11162 | int top_id, top_index, id; |
| 721956f4 | 11163 | asection *section; |
| 734b6cf9 | 11164 | asection **input_list; |
| 721956f4 AM |
11165 | bfd_size_type amt; |
| 11166 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11167 | ||
| 4dfe6ac6 NC |
11168 | if (htab == NULL) |
| 11169 | return -1; | |
| 4c52953f | 11170 | |
| 1e2f5b6e | 11171 | /* Find the top input section id. */ |
| 3d6f9012 | 11172 | for (input_bfd = info->input_bfds, top_id = 3; |
| 721956f4 | 11173 | input_bfd != NULL; |
| c72f2fb2 | 11174 | input_bfd = input_bfd->link.next) |
| 721956f4 | 11175 | { |
| 721956f4 AM |
11176 | for (section = input_bfd->sections; |
| 11177 | section != NULL; | |
| 11178 | section = section->next) | |
| 11179 | { | |
| 11180 | if (top_id < section->id) | |
| 11181 | top_id = section->id; | |
| 11182 | } | |
| 11183 | } | |
| 721956f4 | 11184 | |
| 8f3bab57 | 11185 | htab->top_id = top_id; |
| 721956f4 | 11186 | amt = sizeof (struct map_stub) * (top_id + 1); |
| 4ce794b7 | 11187 | htab->stub_group = bfd_zmalloc (amt); |
| 721956f4 AM |
11188 | if (htab->stub_group == NULL) |
| 11189 | return -1; | |
| 11190 | ||
| 3d6f9012 AM |
11191 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11192 | for (id = 0; id < 3; id++) | |
| 11193 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
| 721956f4 | 11194 | |
| 734b6cf9 AM |
11195 | /* We can't use output_bfd->section_count here to find the top output |
| 11196 | section index as some sections may have been removed, and | |
| 8423293d | 11197 | strip_excluded_output_sections doesn't renumber the indices. */ |
| 927be08e | 11198 | for (section = info->output_bfd->sections, top_index = 0; |
| 734b6cf9 AM |
11199 | section != NULL; |
| 11200 | section = section->next) | |
| 11201 | { | |
| 11202 | if (top_index < section->index) | |
| 11203 | top_index = section->index; | |
| 11204 | } | |
| 11205 | ||
| 11206 | htab->top_index = top_index; | |
| 11207 | amt = sizeof (asection *) * (top_index + 1); | |
| 4ce794b7 | 11208 | input_list = bfd_zmalloc (amt); |
| 734b6cf9 AM |
11209 | htab->input_list = input_list; |
| 11210 | if (input_list == NULL) | |
| 11211 | return -1; | |
| 11212 | ||
| 721956f4 AM |
11213 | return 1; |
| 11214 | } | |
| 11215 | ||
| 927be08e AM |
11216 | /* Set up for first pass at multitoc partitioning. */ |
| 11217 | ||
| 11218 | void | |
| 11219 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11220 | { | |
| 11221 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11222 | ||
| 1c865ab2 | 11223 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11224 | htab->toc_bfd = NULL; |
| 11225 | htab->toc_first_sec = NULL; | |
| 11226 | } | |
| 11227 | ||
| e717da7e AM |
11228 | /* The linker repeatedly calls this function for each TOC input section |
| 11229 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11230 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11231 | |
| 927be08e | 11232 | bfd_boolean |
| 4ce794b7 | 11233 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11234 | { |
| 11235 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11236 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11237 | |
| 4dfe6ac6 NC |
11238 | if (htab == NULL) |
| 11239 | return FALSE; | |
| 11240 | ||
| 927be08e | 11241 | if (!htab->second_toc_pass) |
| 4c52953f | 11242 | { |
| 927be08e | 11243 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11244 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11245 | ||
| 11246 | if (new_bfd) | |
| bf102f86 AM |
11247 | { |
| 11248 | htab->toc_bfd = isec->owner; | |
| 11249 | htab->toc_first_sec = isec; | |
| 11250 | } | |
| 927be08e | 11251 | |
| bf102f86 AM |
11252 | addr = isec->output_offset + isec->output_section->vma; |
| 11253 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11254 | limit = 0x80008000; |
| 11255 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11256 | limit = 0x10000; | |
| 11257 | if (off + isec->size > limit) | |
| bf102f86 AM |
11258 | { |
| 11259 | addr = (htab->toc_first_sec->output_offset | |
| 11260 | + htab->toc_first_sec->output_section->vma); | |
| 11261 | htab->toc_curr = addr; | |
| a27e685f | 11262 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11263 | } |
| 99877b66 | 11264 | |
| 927be08e AM |
11265 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11266 | for the input section to be the offset relative to the | |
| 11267 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11268 | offset allows us to move the toc as a whole without | |
| 11269 | recalculating input elf_gp. */ | |
| 11270 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11271 | off += TOC_BASE_OFF; | |
| 11272 | ||
| 11273 | /* Die if someone uses a linker script that doesn't keep input | |
| 11274 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11275 | if (new_bfd |
| 11276 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11277 | && elf_gp (isec->owner) != off) |
| 11278 | return FALSE; | |
| 11279 | ||
| 11280 | elf_gp (isec->owner) = off; | |
| 11281 | return TRUE; | |
| 4c52953f | 11282 | } |
| 927be08e AM |
11283 | |
| 11284 | /* During the second pass toc_first_sec points to the start of | |
| 11285 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11286 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11287 | if (htab->toc_bfd == isec->owner) | |
| 11288 | return TRUE; | |
| 11289 | htab->toc_bfd = isec->owner; | |
| 11290 | ||
| 11291 | if (htab->toc_first_sec == NULL | |
| 11292 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11293 | { | |
| 11294 | htab->toc_curr = elf_gp (isec->owner); | |
| 11295 | htab->toc_first_sec = isec; | |
| 11296 | } | |
| 11297 | addr = (htab->toc_first_sec->output_offset | |
| 11298 | + htab->toc_first_sec->output_section->vma); | |
| 11299 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11300 | elf_gp (isec->owner) = off; | |
| 11301 | ||
| 11302 | return TRUE; | |
| ad8e1ba5 AM |
11303 | } |
| 11304 | ||
| 927be08e AM |
11305 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11306 | symbol H. */ | |
| 11307 | ||
| 11308 | static bfd_boolean | |
| 11309 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11310 | { | |
| 11311 | if (h->root.type == bfd_link_hash_indirect) | |
| 11312 | return TRUE; | |
| 11313 | ||
| 927be08e AM |
11314 | merge_got_entries (&h->got.glist); |
| 11315 | ||
| 11316 | return TRUE; | |
| 11317 | } | |
| 11318 | ||
| 11319 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11320 | symbol H. */ | |
| 11321 | ||
| 11322 | static bfd_boolean | |
| 11323 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11324 | { | |
| 11325 | struct got_entry *gent; | |
| 11326 | ||
| 11327 | if (h->root.type == bfd_link_hash_indirect) | |
| 11328 | return TRUE; | |
| 11329 | ||
| 927be08e AM |
11330 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11331 | if (!gent->is_indirect) | |
| 11332 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11333 | return TRUE; | |
| 11334 | } | |
| 11335 | ||
| 11336 | /* Called on the first multitoc pass after the last call to | |
| 11337 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11338 | entries. */ | |
| 11339 | ||
| 11340 | bfd_boolean | |
| 11341 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11342 | { |
| 11343 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11344 | struct bfd *ibfd, *ibfd2; |
| 11345 | bfd_boolean done_something; | |
| 11346 | ||
| 11347 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11348 | |
| 7865406b AM |
11349 | if (!htab->do_multi_toc) |
| 11350 | return FALSE; | |
| 11351 | ||
| d0fae19d | 11352 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11353 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11354 | ||
| 11355 | /* And tlsld_got. */ | |
| c72f2fb2 | 11356 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11357 | { |
| 11358 | struct got_entry *ent, *ent2; | |
| 11359 | ||
| 11360 | if (!is_ppc64_elf (ibfd)) | |
| 11361 | continue; | |
| 11362 | ||
| 11363 | ent = ppc64_tlsld_got (ibfd); | |
| 11364 | if (!ent->is_indirect | |
| 11365 | && ent->got.offset != (bfd_vma) -1) | |
| 11366 | { | |
| c72f2fb2 | 11367 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11368 | { |
| 11369 | if (!is_ppc64_elf (ibfd2)) | |
| 11370 | continue; | |
| 11371 | ||
| 11372 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11373 | if (!ent2->is_indirect | |
| 11374 | && ent2->got.offset != (bfd_vma) -1 | |
| 11375 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11376 | { | |
| 11377 | ent2->is_indirect = TRUE; | |
| 11378 | ent2->got.ent = ent; | |
| 11379 | } | |
| 11380 | } | |
| 11381 | } | |
| 11382 | } | |
| 11383 | ||
| 11384 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11385 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11386 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11387 | htab->got_reli_size = 0; |
| 11388 | ||
| c72f2fb2 | 11389 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11390 | { |
| 11391 | asection *got, *relgot; | |
| 11392 | ||
| 11393 | if (!is_ppc64_elf (ibfd)) | |
| 11394 | continue; | |
| 11395 | ||
| 11396 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11397 | if (got != NULL) | |
| 11398 | { | |
| 11399 | got->rawsize = got->size; | |
| 11400 | got->size = 0; | |
| 11401 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11402 | relgot->rawsize = relgot->size; | |
| 11403 | relgot->size = 0; | |
| 11404 | } | |
| 11405 | } | |
| 11406 | ||
| 11407 | /* Now reallocate the got, local syms first. We don't need to | |
| 11408 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11409 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11410 | { |
| 11411 | struct got_entry **lgot_ents; | |
| 11412 | struct got_entry **end_lgot_ents; | |
| 11413 | struct plt_entry **local_plt; | |
| 11414 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11415 | unsigned char *lgot_masks; |
| 927be08e AM |
11416 | bfd_size_type locsymcount; |
| 11417 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11418 | asection *s; |
| 927be08e AM |
11419 | |
| 11420 | if (!is_ppc64_elf (ibfd)) | |
| 11421 | continue; | |
| 11422 | ||
| 11423 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11424 | if (!lgot_ents) | |
| 11425 | continue; | |
| 11426 | ||
| 11427 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11428 | locsymcount = symtab_hdr->sh_info; | |
| 11429 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11430 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11431 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11432 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11433 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11434 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11435 | { | |
| 11436 | struct got_entry *ent; | |
| 11437 | ||
| 11438 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11439 | { |
| 19e08130 AM |
11440 | unsigned int ent_size = 8; |
| 11441 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11442 | ||
| d0fae19d AM |
11443 | ent->got.offset = s->size; |
| 11444 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11445 | { |
| 19e08130 AM |
11446 | ent_size *= 2; |
| 11447 | rel_size *= 2; | |
| 11448 | } | |
| 11449 | s->size += ent_size; | |
| 11450 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11451 | { | |
| 33e44f2e | 11452 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11453 | htab->got_reli_size += rel_size; |
| 11454 | } | |
| 11455 | else if (info->shared) | |
| 11456 | { | |
| 11457 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11458 | srel->size += rel_size; | |
| d0fae19d AM |
11459 | } |
| 11460 | } | |
| 927be08e AM |
11461 | } |
| 11462 | } | |
| 11463 | ||
| 11464 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11465 | ||
| c72f2fb2 | 11466 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11467 | { |
| 11468 | struct got_entry *ent; | |
| 11469 | ||
| 11470 | if (!is_ppc64_elf (ibfd)) | |
| 11471 | continue; | |
| 11472 | ||
| 11473 | ent = ppc64_tlsld_got (ibfd); | |
| 11474 | if (!ent->is_indirect | |
| 11475 | && ent->got.offset != (bfd_vma) -1) | |
| 11476 | { | |
| 11477 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11478 | ent->got.offset = s->size; | |
| 11479 | s->size += 16; | |
| 11480 | if (info->shared) | |
| 11481 | { | |
| 11482 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11483 | srel->size += sizeof (Elf64_External_Rela); | |
| 11484 | } | |
| 11485 | } | |
| 11486 | } | |
| 11487 | ||
| 33e44f2e | 11488 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11489 | if (!done_something) |
| c72f2fb2 | 11490 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11491 | { |
| 11492 | asection *got; | |
| 11493 | ||
| 11494 | if (!is_ppc64_elf (ibfd)) | |
| 11495 | continue; | |
| 11496 | ||
| 11497 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11498 | if (got != NULL) | |
| 11499 | { | |
| 11500 | done_something = got->rawsize != got->size; | |
| 11501 | if (done_something) | |
| 11502 | break; | |
| 11503 | } | |
| 11504 | } | |
| 11505 | ||
| 11506 | if (done_something) | |
| e7d1c40c | 11507 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11508 | |
| 11509 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11510 | on input sections. */ | |
| 11511 | htab->toc_bfd = NULL; | |
| 11512 | htab->toc_first_sec = NULL; | |
| 11513 | htab->second_toc_pass = TRUE; | |
| 11514 | return done_something; | |
| 11515 | } | |
| 11516 | ||
| 11517 | /* Called after second pass of multitoc partitioning. */ | |
| 11518 | ||
| 11519 | void | |
| 11520 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11521 | { | |
| 11522 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11523 | ||
| 11524 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11525 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11526 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11527 | } |
| 11528 | ||
| 9b5ecbd0 AM |
11529 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11530 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11531 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11532 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11533 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11534 | for a stub was detected. If called from the top level, a return of | |
| 11535 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11536 | |
| 11537 | static int | |
| 4ce794b7 | 11538 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11539 | { |
| 9b5ecbd0 | 11540 | int ret; |
| 70cc837d AM |
11541 | |
| 11542 | /* Mark this section as checked. */ | |
| 11543 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11544 | |
| 772119ce AM |
11545 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11546 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11547 | return 0; | |
| 11548 | ||
| eea6121a | 11549 | if (isec->size == 0) |
| 082c50f8 AM |
11550 | return 0; |
| 11551 | ||
| 4c52953f AM |
11552 | if (isec->output_section == NULL) |
| 11553 | return 0; | |
| 11554 | ||
| 4c52953f | 11555 | ret = 0; |
| 70cc837d | 11556 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11557 | { |
| 70cc837d AM |
11558 | Elf_Internal_Rela *relstart, *rel; |
| 11559 | Elf_Internal_Sym *local_syms; | |
| 11560 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11561 | |
| 70cc837d AM |
11562 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11563 | info->keep_memory); | |
| 11564 | if (relstart == NULL) | |
| 11565 | return -1; | |
| 90aecf7a | 11566 | |
| 70cc837d AM |
11567 | /* Look for branches to outside of this section. */ |
| 11568 | local_syms = NULL; | |
| 11569 | htab = ppc_hash_table (info); | |
| 11570 | if (htab == NULL) | |
| 11571 | return -1; | |
| 4c52953f | 11572 | |
| 70cc837d | 11573 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11574 | { |
| 70cc837d AM |
11575 | enum elf_ppc64_reloc_type r_type; |
| 11576 | unsigned long r_symndx; | |
| 11577 | struct elf_link_hash_entry *h; | |
| 11578 | struct ppc_link_hash_entry *eh; | |
| 11579 | Elf_Internal_Sym *sym; | |
| 11580 | asection *sym_sec; | |
| 11581 | struct _opd_sec_data *opd; | |
| 11582 | bfd_vma sym_value; | |
| 11583 | bfd_vma dest; | |
| 11584 | ||
| 11585 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11586 | if (r_type != R_PPC64_REL24 | |
| 11587 | && r_type != R_PPC64_REL14 | |
| 11588 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11589 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11590 | continue; | |
| 4c52953f | 11591 | |
| 70cc837d AM |
11592 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11593 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11594 | isec->owner)) | |
| 4c52953f | 11595 | { |
| 70cc837d AM |
11596 | ret = -1; |
| 11597 | break; | |
| 11598 | } | |
| 4c52953f | 11599 | |
| 70cc837d AM |
11600 | /* Calls to dynamic lib functions go through a plt call stub |
| 11601 | that uses r2. */ | |
| 11602 | eh = (struct ppc_link_hash_entry *) h; | |
| 11603 | if (eh != NULL | |
| 11604 | && (eh->elf.plt.plist != NULL | |
| 11605 | || (eh->oh != NULL | |
| 11606 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11607 | { | |
| 11608 | ret = 1; | |
| 11609 | break; | |
| 4c52953f AM |
11610 | } |
| 11611 | ||
| 70cc837d AM |
11612 | if (sym_sec == NULL) |
| 11613 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11614 | continue; |
| 4c52953f | 11615 | |
| 70cc837d AM |
11616 | /* Assume branches to other sections not included in the |
| 11617 | link need stubs too, to cover -R and absolute syms. */ | |
| 11618 | if (sym_sec->output_section == NULL) | |
| 11619 | { | |
| 11620 | ret = 1; | |
| 11621 | break; | |
| 11622 | } | |
| 4c52953f | 11623 | |
| 70cc837d AM |
11624 | if (h == NULL) |
| 11625 | sym_value = sym->st_value; | |
| 11626 | else | |
| 11627 | { | |
| 11628 | if (h->root.type != bfd_link_hash_defined | |
| 11629 | && h->root.type != bfd_link_hash_defweak) | |
| 11630 | abort (); | |
| 11631 | sym_value = h->root.u.def.value; | |
| 11632 | } | |
| 11633 | sym_value += rel->r_addend; | |
| 4c52953f | 11634 | |
| 70cc837d AM |
11635 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11636 | opd = get_opd_info (sym_sec); | |
| 11637 | if (opd != NULL) | |
| 11638 | { | |
| 11639 | if (h == NULL && opd->adjust != NULL) | |
| 11640 | { | |
| 11641 | long adjust; | |
| 4c52953f | 11642 | |
| 51aecdc5 | 11643 | adjust = opd->adjust[OPD_NDX (sym->st_value)]; |
| 70cc837d AM |
11644 | if (adjust == -1) |
| 11645 | /* Assume deleted functions won't ever be called. */ | |
| 11646 | continue; | |
| 11647 | sym_value += adjust; | |
| 11648 | } | |
| 4c52953f | 11649 | |
| aef36ac1 AM |
11650 | dest = opd_entry_value (sym_sec, sym_value, |
| 11651 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11652 | if (dest == (bfd_vma) -1) |
| 11653 | continue; | |
| 11654 | } | |
| 11655 | else | |
| 11656 | dest = (sym_value | |
| 11657 | + sym_sec->output_offset | |
| 11658 | + sym_sec->output_section->vma); | |
| 4c52953f | 11659 | |
| 70cc837d AM |
11660 | /* Ignore branch to self. */ |
| 11661 | if (sym_sec == isec) | |
| 11662 | continue; | |
| 4c52953f | 11663 | |
| 70cc837d AM |
11664 | /* If the called function uses the toc, we need a stub. */ |
| 11665 | if (sym_sec->has_toc_reloc | |
| 11666 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11667 | { |
| 70cc837d | 11668 | ret = 1; |
| 4c52953f AM |
11669 | break; |
| 11670 | } | |
| 70cc837d AM |
11671 | |
| 11672 | /* Assume any branch that needs a long branch stub might in fact | |
| 11673 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11674 | else if (dest - (isec->output_offset | |
| 11675 | + isec->output_section->vma | |
| 6911b7dc AM |
11676 | + rel->r_offset) + (1 << 25) |
| 11677 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11678 | ? h->other | |
| 11679 | : sym->st_other)) | |
| 4c52953f | 11680 | { |
| 70cc837d AM |
11681 | ret = 1; |
| 11682 | break; | |
| 11683 | } | |
| 11684 | ||
| 11685 | /* If calling back to a section in the process of being | |
| 11686 | tested, we can't say for sure that no toc adjusting stubs | |
| 11687 | are needed, so don't return zero. */ | |
| 11688 | else if (sym_sec->call_check_in_progress) | |
| 11689 | ret = 2; | |
| 11690 | ||
| 11691 | /* Branches to another section that itself doesn't have any TOC | |
| 11692 | references are OK. Recursively call ourselves to check. */ | |
| 11693 | else if (!sym_sec->call_check_done) | |
| 11694 | { | |
| 11695 | int recur; | |
| 11696 | ||
| 11697 | /* Mark current section as indeterminate, so that other | |
| 11698 | sections that call back to current won't be marked as | |
| 11699 | known. */ | |
| 11700 | isec->call_check_in_progress = 1; | |
| 11701 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11702 | isec->call_check_in_progress = 0; | |
| 11703 | ||
| 4c52953f AM |
11704 | if (recur != 0) |
| 11705 | { | |
| 70cc837d AM |
11706 | ret = recur; |
| 11707 | if (recur != 2) | |
| 11708 | break; | |
| 4c52953f AM |
11709 | } |
| 11710 | } | |
| 4c52953f | 11711 | } |
| 70cc837d AM |
11712 | |
| 11713 | if (local_syms != NULL | |
| 11714 | && (elf_symtab_hdr (isec->owner).contents | |
| 11715 | != (unsigned char *) local_syms)) | |
| 11716 | free (local_syms); | |
| 11717 | if (elf_section_data (isec)->relocs != relstart) | |
| 11718 | free (relstart); | |
| 9b5ecbd0 AM |
11719 | } |
| 11720 | ||
| 70cc837d AM |
11721 | if ((ret & 1) == 0 |
| 11722 | && isec->map_head.s != NULL | |
| 11723 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11724 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11725 | { | |
| 11726 | if (isec->map_head.s->has_toc_reloc | |
| 11727 | || isec->map_head.s->makes_toc_func_call) | |
| 11728 | ret = 1; | |
| 11729 | else if (!isec->map_head.s->call_check_done) | |
| 11730 | { | |
| 11731 | int recur; | |
| 11732 | isec->call_check_in_progress = 1; | |
| 11733 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11734 | isec->call_check_in_progress = 0; | |
| 11735 | if (recur != 0) | |
| 11736 | ret = recur; | |
| 11737 | } | |
| 11738 | } | |
| 11739 | ||
| 11740 | if (ret == 1) | |
| 11741 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11742 | |
| 9b5ecbd0 AM |
11743 | return ret; |
| 11744 | } | |
| 11745 | ||
| 721956f4 AM |
11746 | /* The linker repeatedly calls this function for each input section, |
| 11747 | in the order that input sections are linked into output sections. | |
| 11748 | Build lists of input sections to determine groupings between which | |
| 11749 | we may insert linker stubs. */ | |
| 11750 | ||
| 9b5ecbd0 | 11751 | bfd_boolean |
| 4ce794b7 | 11752 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11753 | { |
| 11754 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11755 | ||
| 4dfe6ac6 NC |
11756 | if (htab == NULL) |
| 11757 | return FALSE; | |
| 11758 | ||
| 734b6cf9 AM |
11759 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 11760 | && isec->output_section->index <= htab->top_index) | |
| 721956f4 | 11761 | { |
| 734b6cf9 | 11762 | asection **list = htab->input_list + isec->output_section->index; |
| 3d6f9012 | 11763 | /* Steal the link_sec pointer for our list. */ |
| 721956f4 | 11764 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3d6f9012 AM |
11765 | /* This happens to make the list in reverse order, |
| 11766 | which is what we want. */ | |
| 734b6cf9 AM |
11767 | PREV_SEC (isec) = *list; |
| 11768 | *list = isec; | |
| 721956f4 | 11769 | } |
| ad8e1ba5 | 11770 | |
| 4c52953f | 11771 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11772 | { |
| 8b974ba3 AM |
11773 | /* Analyse sections that aren't already flagged as needing a |
| 11774 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 11775 | .fixup contains branches, but only back to the function that | |
| 11776 | hit an exception. */ | |
| 11777 | if (!(isec->has_toc_reloc | |
| 11778 | || (isec->flags & SEC_CODE) == 0 | |
| 11779 | || strcmp (isec->name, ".fixup") == 0 | |
| 11780 | || isec->call_check_done)) | |
| 11781 | { | |
| 11782 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 11783 | return FALSE; |
| 8b974ba3 AM |
11784 | } |
| 11785 | /* Make all sections use the TOC assigned for this object file. | |
| 11786 | This will be wrong for pasted sections; We fix that in | |
| 11787 | check_pasted_section(). */ | |
| 11788 | if (elf_gp (isec->owner) != 0) | |
| 11789 | htab->toc_curr = elf_gp (isec->owner); | |
| 11790 | } | |
| 11791 | ||
| ad8e1ba5 | 11792 | htab->stub_group[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11793 | return TRUE; |
| 721956f4 AM |
11794 | } |
| 11795 | ||
| 70cc837d AM |
11796 | /* Check that all .init and .fini sections use the same toc, if they |
| 11797 | have toc relocs. */ | |
| 11798 | ||
| 11799 | static bfd_boolean | |
| 11800 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11801 | { | |
| 11802 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11803 | ||
| 11804 | if (o != NULL) | |
| 11805 | { | |
| 11806 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11807 | bfd_vma toc_off = 0; | |
| 11808 | asection *i; | |
| 11809 | ||
| 11810 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11811 | if (i->has_toc_reloc) | |
| 11812 | { | |
| 11813 | if (toc_off == 0) | |
| 11814 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11815 | else if (toc_off != htab->stub_group[i->id].toc_off) | |
| 11816 | return FALSE; | |
| 11817 | } | |
| 6683a28d AM |
11818 | |
| 11819 | if (toc_off == 0) | |
| 11820 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11821 | if (i->makes_toc_func_call) | |
| 11822 | { | |
| 11823 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11824 | break; | |
| 11825 | } | |
| 11826 | ||
| 70cc837d AM |
11827 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11828 | if (toc_off != 0) | |
| 11829 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11830 | htab->stub_group[i->id].toc_off = toc_off; | |
| 11831 | } | |
| 11832 | return TRUE; | |
| 11833 | } | |
| 11834 | ||
| 11835 | bfd_boolean | |
| 11836 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11837 | { | |
| 11838 | return (check_pasted_section (info, ".init") | |
| 11839 | & check_pasted_section (info, ".fini")); | |
| 11840 | } | |
| 11841 | ||
| 721956f4 AM |
11842 | /* See whether we can group stub sections together. Grouping stub |
| 11843 | sections may result in fewer stubs. More importantly, we need to | |
| 11844 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11845 | .fini output sections respectively, because glibc splits the | |
| 11846 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11847 | the middle of a function is not a good idea. */ | |
| 11848 | ||
| 11849 | static void | |
| 4ce794b7 AM |
11850 | group_sections (struct ppc_link_hash_table *htab, |
| 11851 | bfd_size_type stub_group_size, | |
| 11852 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11853 | { |
| 7c8fe5c4 AM |
11854 | asection **list; |
| 11855 | bfd_size_type stub14_group_size; | |
| 11856 | bfd_boolean suppress_size_errors; | |
| 11857 | ||
| 11858 | suppress_size_errors = FALSE; | |
| 0cfb0717 | 11859 | stub14_group_size = stub_group_size >> 10; |
| 7c8fe5c4 AM |
11860 | if (stub_group_size == 1) |
| 11861 | { | |
| 11862 | /* Default values. */ | |
| 11863 | if (stubs_always_before_branch) | |
| 11864 | { | |
| 11865 | stub_group_size = 0x1e00000; | |
| 11866 | stub14_group_size = 0x7800; | |
| 11867 | } | |
| 11868 | else | |
| 11869 | { | |
| 11870 | stub_group_size = 0x1c00000; | |
| 11871 | stub14_group_size = 0x7000; | |
| 11872 | } | |
| 11873 | suppress_size_errors = TRUE; | |
| 11874 | } | |
| 11875 | ||
| 11876 | list = htab->input_list + htab->top_index; | |
| 734b6cf9 | 11877 | do |
| 721956f4 | 11878 | { |
| 734b6cf9 AM |
11879 | asection *tail = *list; |
| 11880 | while (tail != NULL) | |
| 721956f4 | 11881 | { |
| 734b6cf9 AM |
11882 | asection *curr; |
| 11883 | asection *prev; | |
| 11884 | bfd_size_type total; | |
| 11885 | bfd_boolean big_sec; | |
| 11886 | bfd_vma curr_toc; | |
| 11887 | ||
| 11888 | curr = tail; | |
| eea6121a | 11889 | total = tail->size; |
| 6bee8834 AM |
11890 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 11891 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
11892 | ? stub14_group_size : stub_group_size); |
| 11893 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
11894 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 11895 | tail->owner, tail); | |
| 734b6cf9 AM |
11896 | curr_toc = htab->stub_group[tail->id].toc_off; |
| 11897 | ||
| 11898 | while ((prev = PREV_SEC (curr)) != NULL | |
| 11899 | && ((total += curr->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11900 | < (ppc64_elf_section_data (prev) != NULL |
| 11901 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11902 | ? stub14_group_size : stub_group_size)) |
| ad8e1ba5 | 11903 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
11904 | curr = prev; |
| 11905 | ||
| 11906 | /* OK, the size from the start of CURR to the end is less | |
| 11907 | than stub_group_size and thus can be handled by one stub | |
| 11908 | section. (or the tail section is itself larger than | |
| 11909 | stub_group_size, in which case we may be toast.) We | |
| 11910 | should really be keeping track of the total size of stubs | |
| 11911 | added here, as stubs contribute to the final output | |
| 11912 | section size. That's a little tricky, and this way will | |
| 11913 | only break if stubs added make the total size more than | |
| 11914 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 11915 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 11916 | do | |
| 721956f4 AM |
11917 | { |
| 11918 | prev = PREV_SEC (tail); | |
| 734b6cf9 | 11919 | /* Set up this stub group. */ |
| 721956f4 AM |
11920 | htab->stub_group[tail->id].link_sec = curr; |
| 11921 | } | |
| 734b6cf9 AM |
11922 | while (tail != curr && (tail = prev) != NULL); |
| 11923 | ||
| 11924 | /* But wait, there's more! Input sections up to stub_group_size | |
| 11925 | bytes before the stub section can be handled by it too. | |
| 11926 | Don't do this if we have a really large section after the | |
| 11927 | stubs, as adding more stubs increases the chance that | |
| 11928 | branches may not reach into the stub section. */ | |
| 11929 | if (!stubs_always_before_branch && !big_sec) | |
| 11930 | { | |
| 11931 | total = 0; | |
| 11932 | while (prev != NULL | |
| 11933 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11934 | < (ppc64_elf_section_data (prev) != NULL |
| 11935 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11936 | ? stub14_group_size : stub_group_size)) |
| 734b6cf9 AM |
11937 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 11938 | { | |
| 11939 | tail = prev; | |
| 11940 | prev = PREV_SEC (tail); | |
| 11941 | htab->stub_group[tail->id].link_sec = curr; | |
| 11942 | } | |
| 11943 | } | |
| 11944 | tail = prev; | |
| 721956f4 AM |
11945 | } |
| 11946 | } | |
| 734b6cf9 AM |
11947 | while (list-- != htab->input_list); |
| 11948 | free (htab->input_list); | |
| 721956f4 AM |
11949 | #undef PREV_SEC |
| 11950 | } | |
| 11951 | ||
| 58d180e8 AM |
11952 | static const unsigned char glink_eh_frame_cie[] = |
| 11953 | { | |
| 11954 | 0, 0, 0, 16, /* length. */ | |
| 11955 | 0, 0, 0, 0, /* id. */ | |
| 11956 | 1, /* CIE version. */ | |
| 11957 | 'z', 'R', 0, /* Augmentation string. */ | |
| 11958 | 4, /* Code alignment. */ | |
| 11959 | 0x78, /* Data alignment. */ | |
| 11960 | 65, /* RA reg. */ | |
| 11961 | 1, /* Augmentation size. */ | |
| 11962 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
11963 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 11964 | 0, 0, 0, 0 | |
| 58d180e8 AM |
11965 | }; |
| 11966 | ||
| d969d15f AM |
11967 | /* Stripping output sections is normally done before dynamic section |
| 11968 | symbols have been allocated. This function is called later, and | |
| 11969 | handles cases like htab->brlt which is mapped to its own output | |
| 11970 | section. */ | |
| 11971 | ||
| 11972 | static void | |
| 11973 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 11974 | { | |
| 11975 | if (isec->size == 0 | |
| 11976 | && isec->output_section->size == 0 | |
| 53d8967a | 11977 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
11978 | && !bfd_section_removed_from_list (info->output_bfd, |
| 11979 | isec->output_section) | |
| 11980 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 11981 | { | |
| 11982 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 11983 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 11984 | info->output_bfd->section_count--; | |
| 11985 | } | |
| 11986 | } | |
| 11987 | ||
| 721956f4 AM |
11988 | /* Determine and set the size of the stub section for a final link. |
| 11989 | ||
| 11990 | The basic idea here is to examine all the relocations looking for | |
| 11991 | PC-relative calls to a target that is unreachable with a "bl" | |
| 11992 | instruction. */ | |
| 11993 | ||
| b34976b6 | 11994 | bfd_boolean |
| e7d1c40c | 11995 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
11996 | { |
| 11997 | bfd_size_type stub_group_size; | |
| b34976b6 | 11998 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
11999 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12000 | ||
| 4dfe6ac6 NC |
12001 | if (htab == NULL) |
| 12002 | return FALSE; | |
| 12003 | ||
| e7d1c40c AM |
12004 | if (htab->params->plt_thread_safe == -1 && !info->executable) |
| 12005 | htab->params->plt_thread_safe = 1; | |
| b9e5796b | 12006 | if (!htab->opd_abi) |
| e7d1c40c AM |
12007 | htab->params->plt_thread_safe = 0; |
| 12008 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12009 | { |
| e2458743 | 12010 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12011 | { |
| 12012 | "pthread_create", | |
| 12013 | /* libstdc++ */ | |
| 12014 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12015 | /* librt */ | |
| 12016 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12017 | "mq_notify", "create_timer", | |
| 12018 | /* libanl */ | |
| 12019 | "getaddrinfo_a", | |
| 12020 | /* libgomp */ | |
| 2300b5a1 | 12021 | "GOMP_parallel", |
| 794e51c0 | 12022 | "GOMP_parallel_start", |
| 2300b5a1 | 12023 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12024 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12025 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12026 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12027 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12028 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12029 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12030 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12031 | "GOMP_parallel_sections", |
| 68ffbac6 | 12032 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12033 | /* libgo */ |
| 12034 | "__go_go", | |
| 794e51c0 AM |
12035 | }; |
| 12036 | unsigned i; | |
| 12037 | ||
| 12038 | for (i = 0; i < sizeof (thread_starter)/ sizeof (thread_starter[0]); i++) | |
| 12039 | { | |
| 12040 | struct elf_link_hash_entry *h; | |
| 12041 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12042 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12043 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12044 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12045 | break; |
| 12046 | } | |
| 12047 | } | |
| e7d1c40c AM |
12048 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12049 | if (htab->params->group_size < 0) | |
| 12050 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12051 | else |
| e7d1c40c | 12052 | stub_group_size = htab->params->group_size; |
| 721956f4 AM |
12053 | |
| 12054 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 12055 | ||
| 721956f4 AM |
12056 | while (1) |
| 12057 | { | |
| 12058 | bfd *input_bfd; | |
| 12059 | unsigned int bfd_indx; | |
| 12060 | asection *stub_sec; | |
| 721956f4 AM |
12061 | |
| 12062 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12063 | |
| 12064 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12065 | input_bfd != NULL; | |
| c72f2fb2 | 12066 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12067 | { |
| 12068 | Elf_Internal_Shdr *symtab_hdr; | |
| 12069 | asection *section; | |
| 6cdc0ccc | 12070 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12071 | |
| 0c8d6e5c | 12072 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12073 | continue; |
| 12074 | ||
| 721956f4 | 12075 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12076 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12077 | if (symtab_hdr->sh_info == 0) |
| 12078 | continue; | |
| 12079 | ||
| 721956f4 AM |
12080 | /* Walk over each section attached to the input bfd. */ |
| 12081 | for (section = input_bfd->sections; | |
| 12082 | section != NULL; | |
| 12083 | section = section->next) | |
| 12084 | { | |
| 721956f4 | 12085 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12086 | |
| 12087 | /* If there aren't any relocs, then there's nothing more | |
| 12088 | to do. */ | |
| 12089 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12090 | || (section->flags & SEC_ALLOC) == 0 |
| 12091 | || (section->flags & SEC_LOAD) == 0 | |
| 12092 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12093 | || section->reloc_count == 0) |
| 12094 | continue; | |
| 12095 | ||
| 12096 | /* If this section is a link-once section that will be | |
| 12097 | discarded, then don't create any stubs. */ | |
| 12098 | if (section->output_section == NULL | |
| 927be08e | 12099 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12100 | continue; |
| 12101 | ||
| 1e2f5b6e AM |
12102 | /* Get the relocs. */ |
| 12103 | internal_relocs | |
| 4ce794b7 | 12104 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12105 | info->keep_memory); |
| 721956f4 | 12106 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12107 | goto error_ret_free_local; |
| 721956f4 AM |
12108 | |
| 12109 | /* Now examine each relocation. */ | |
| 12110 | irela = internal_relocs; | |
| 12111 | irelaend = irela + section->reloc_count; | |
| 12112 | for (; irela < irelaend; irela++) | |
| 12113 | { | |
| 4ce794b7 AM |
12114 | enum elf_ppc64_reloc_type r_type; |
| 12115 | unsigned int r_indx; | |
| 721956f4 AM |
12116 | enum ppc_stub_type stub_type; |
| 12117 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12118 | asection *sym_sec, *code_sec; |
| e054468f | 12119 | bfd_vma sym_value, code_value; |
| 721956f4 | 12120 | bfd_vma destination; |
| 6911b7dc | 12121 | unsigned long local_off; |
| 8843416a | 12122 | bfd_boolean ok_dest; |
| 721956f4 | 12123 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12124 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12125 | struct elf_link_hash_entry *h; |
| 12126 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12127 | char *stub_name; |
| 12128 | const asection *id_sec; | |
| 74f0fb50 | 12129 | struct _opd_sec_data *opd; |
| e054468f | 12130 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12131 | |
| 12132 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12133 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12134 | ||
| 4ce794b7 | 12135 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12136 | { |
| 12137 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12138 | goto error_ret_free_internal; |
| 721956f4 AM |
12139 | } |
| 12140 | ||
| 12141 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12142 | if (r_type != R_PPC64_REL24 |
| 12143 | && r_type != R_PPC64_REL14 | |
| 12144 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12145 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12146 | continue; |
| 12147 | ||
| 12148 | /* Now determine the call target, its name, value, | |
| 12149 | section. */ | |
| 411e1bfb AM |
12150 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12151 | r_indx, input_bfd)) | |
| 12152 | goto error_ret_free_internal; | |
| 12153 | hash = (struct ppc_link_hash_entry *) h; | |
| 12154 | ||
| 8843416a | 12155 | ok_dest = FALSE; |
| 8387904d | 12156 | fdh = NULL; |
| 7fe2b9a6 | 12157 | sym_value = 0; |
| 411e1bfb | 12158 | if (hash == NULL) |
| 721956f4 | 12159 | { |
| 411e1bfb | 12160 | sym_value = sym->st_value; |
| 8843416a | 12161 | ok_dest = TRUE; |
| 721956f4 | 12162 | } |
| 7fe2b9a6 AM |
12163 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12164 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12165 | { | |
| 12166 | sym_value = hash->elf.root.u.def.value; | |
| 12167 | if (sym_sec->output_section != NULL) | |
| 12168 | ok_dest = TRUE; | |
| 12169 | } | |
| 12170 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12171 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12172 | { |
| 99877b66 | 12173 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12174 | use the func descriptor sym instead if it is |
| 12175 | defined. */ | |
| ceb1f1ef | 12176 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 12177 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 12178 | { |
| 8387904d AM |
12179 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12180 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12181 | { | |
| 12182 | sym_sec = fdh->elf.root.u.def.section; | |
| 12183 | sym_value = fdh->elf.root.u.def.value; | |
| 12184 | if (sym_sec->output_section != NULL) | |
| 12185 | ok_dest = TRUE; | |
| 12186 | } | |
| 99877b66 AM |
12187 | else |
| 12188 | fdh = NULL; | |
| 8387904d | 12189 | } |
| 7fe2b9a6 AM |
12190 | } |
| 12191 | else | |
| 12192 | { | |
| 12193 | bfd_set_error (bfd_error_bad_value); | |
| 12194 | goto error_ret_free_internal; | |
| 721956f4 AM |
12195 | } |
| 12196 | ||
| 8843416a | 12197 | destination = 0; |
| 6911b7dc | 12198 | local_off = 0; |
| 8843416a AM |
12199 | if (ok_dest) |
| 12200 | { | |
| 12201 | sym_value += irela->r_addend; | |
| 12202 | destination = (sym_value | |
| 12203 | + sym_sec->output_offset | |
| 12204 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12205 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12206 | ? hash->elf.other | |
| 12207 | : sym->st_other); | |
| 8843416a AM |
12208 | } |
| 12209 | ||
| 8387904d | 12210 | code_sec = sym_sec; |
| e054468f | 12211 | code_value = sym_value; |
| 74f0fb50 AM |
12212 | opd = get_opd_info (sym_sec); |
| 12213 | if (opd != NULL) | |
| 8387904d AM |
12214 | { |
| 12215 | bfd_vma dest; | |
| 12216 | ||
| 74f0fb50 | 12217 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12218 | { |
| 51aecdc5 | 12219 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12220 | if (adjust == -1) |
| 12221 | continue; | |
| e054468f | 12222 | code_value += adjust; |
| 8387904d AM |
12223 | sym_value += adjust; |
| 12224 | } | |
| 12225 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12226 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12227 | if (dest != (bfd_vma) -1) |
| 12228 | { | |
| 12229 | destination = dest; | |
| 12230 | if (fdh != NULL) | |
| 12231 | { | |
| 12232 | /* Fixup old ABI sym to point at code | |
| 12233 | entry. */ | |
| 99877b66 | 12234 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12235 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12236 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12237 | } |
| 12238 | } | |
| 12239 | } | |
| 12240 | ||
| 721956f4 | 12241 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12242 | plt_ent = NULL; |
| 721956f4 | 12243 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12244 | &plt_ent, destination, |
| 12245 | local_off); | |
| ad8e1ba5 AM |
12246 | |
| 12247 | if (stub_type != ppc_stub_plt_call) | |
| 12248 | { | |
| 12249 | /* Check whether we need a TOC adjusting stub. | |
| 12250 | Since the linker pastes together pieces from | |
| 12251 | different object files when creating the | |
| 12252 | _init and _fini functions, it may be that a | |
| 12253 | call to what looks like a local sym is in | |
| 12254 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12255 | if (code_sec != NULL |
| 12256 | && code_sec->output_section != NULL | |
| 12257 | && (htab->stub_group[code_sec->id].toc_off | |
| 9b5ecbd0 | 12258 | != htab->stub_group[section->id].toc_off) |
| 4c52953f AM |
12259 | && (code_sec->has_toc_reloc |
| 12260 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12261 | stub_type = ppc_stub_long_branch_r2off; |
| 12262 | } | |
| 12263 | ||
| 721956f4 AM |
12264 | if (stub_type == ppc_stub_none) |
| 12265 | continue; | |
| 12266 | ||
| 411e1bfb AM |
12267 | /* __tls_get_addr calls might be eliminated. */ |
| 12268 | if (stub_type != ppc_stub_plt_call | |
| 12269 | && hash != NULL | |
| 8387904d AM |
12270 | && (hash == htab->tls_get_addr |
| 12271 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12272 | && section->has_tls_reloc |
| 12273 | && irela != internal_relocs) | |
| 12274 | { | |
| 12275 | /* Get tls info. */ | |
| f961d9dd | 12276 | unsigned char *tls_mask; |
| 411e1bfb | 12277 | |
| 3a71aa26 | 12278 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12279 | irela - 1, input_bfd)) |
| 12280 | goto error_ret_free_internal; | |
| e7b938ca | 12281 | if (*tls_mask != 0) |
| 411e1bfb AM |
12282 | continue; |
| 12283 | } | |
| 12284 | ||
| 3b421ab3 AM |
12285 | if (stub_type == ppc_stub_plt_call |
| 12286 | && irela + 1 < irelaend | |
| 12287 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12288 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12289 | { | |
| 12290 | if (!tocsave_find (htab, INSERT, | |
| 12291 | &local_syms, irela + 1, input_bfd)) | |
| 12292 | goto error_ret_free_internal; | |
| 12293 | } | |
| 12294 | else if (stub_type == ppc_stub_plt_call) | |
| 12295 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12296 | |
| 721956f4 AM |
12297 | /* Support for grouping stub sections. */ |
| 12298 | id_sec = htab->stub_group[section->id].link_sec; | |
| 12299 | ||
| 12300 | /* Get the name of this stub. */ | |
| 12301 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12302 | if (!stub_name) | |
| 12303 | goto error_ret_free_internal; | |
| 12304 | ||
| 12305 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12306 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12307 | if (stub_entry != NULL) |
| 12308 | { | |
| 12309 | /* The proper stub has already been created. */ | |
| 12310 | free (stub_name); | |
| 794e51c0 AM |
12311 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12312 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12313 | continue; |
| 12314 | } | |
| 12315 | ||
| 25f53a85 | 12316 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12317 | if (stub_entry == NULL) |
| 12318 | { | |
| 12319 | free (stub_name); | |
| 6cdc0ccc AM |
12320 | error_ret_free_internal: |
| 12321 | if (elf_section_data (section)->relocs == NULL) | |
| 12322 | free (internal_relocs); | |
| 12323 | error_ret_free_local: | |
| 12324 | if (local_syms != NULL | |
| 12325 | && (symtab_hdr->contents | |
| 12326 | != (unsigned char *) local_syms)) | |
| 12327 | free (local_syms); | |
| b34976b6 | 12328 | return FALSE; |
| 721956f4 AM |
12329 | } |
| 12330 | ||
| ad8e1ba5 | 12331 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12332 | if (stub_type != ppc_stub_plt_call |
| 12333 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12334 | { |
| 12335 | stub_entry->target_value = code_value; | |
| 12336 | stub_entry->target_section = code_sec; | |
| 12337 | } | |
| 12338 | else | |
| 12339 | { | |
| 12340 | stub_entry->target_value = sym_value; | |
| 12341 | stub_entry->target_section = sym_sec; | |
| 12342 | } | |
| 721956f4 | 12343 | stub_entry->h = hash; |
| e054468f | 12344 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12345 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12346 | |
| 12347 | if (stub_entry->h != NULL) | |
| 12348 | htab->stub_globals += 1; | |
| 721956f4 AM |
12349 | } |
| 12350 | ||
| 12351 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12352 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12353 | free (internal_relocs); |
| 721956f4 | 12354 | } |
| 6cdc0ccc AM |
12355 | |
| 12356 | if (local_syms != NULL | |
| 12357 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12358 | { | |
| 12359 | if (!info->keep_memory) | |
| 12360 | free (local_syms); | |
| 12361 | else | |
| 12362 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12363 | } | |
| 721956f4 AM |
12364 | } |
| 12365 | ||
| 5c3dead3 | 12366 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12367 | stub sections. */ |
| e7d1c40c | 12368 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12369 | stub_sec != NULL; |
| 12370 | stub_sec = stub_sec->next) | |
| e717da7e | 12371 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12372 | { |
| 5c3dead3 | 12373 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12374 | stub_sec->size = 0; |
| 12375 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12376 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12377 | } |
| eea6121a AM |
12378 | |
| 12379 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12380 | htab->brlt->reloc_count = 0; |
| 12381 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12382 | if (htab->relbrlt != NULL) |
| eea6121a | 12383 | htab->relbrlt->size = 0; |
| 721956f4 | 12384 | |
| 63bc6f6c | 12385 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12386 | |
| 176a0d42 AM |
12387 | if (info->emitrelocations |
| 12388 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12389 | { | |
| 12390 | htab->glink->reloc_count = 1; | |
| 12391 | htab->glink->flags |= SEC_RELOC; | |
| 12392 | } | |
| 12393 | ||
| 58d180e8 AM |
12394 | if (htab->glink_eh_frame != NULL |
| 12395 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12396 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12397 | { |
| 4bbe044a | 12398 | size_t size = 0, align; |
| 58d180e8 | 12399 | |
| e7d1c40c | 12400 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12401 | stub_sec != NULL; |
| 12402 | stub_sec = stub_sec->next) | |
| 12403 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12404 | size += 24; |
| 58d180e8 AM |
12405 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12406 | size += 24; | |
| 12407 | if (size != 0) | |
| 12408 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12409 | align = 1; |
| 12410 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12411 | align -= 1; | |
| 12412 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12413 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12414 | htab->glink_eh_frame->size = size; | |
| 12415 | } | |
| 12416 | ||
| e7d1c40c AM |
12417 | if (htab->params->plt_stub_align != 0) |
| 12418 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12419 | stub_sec != NULL; |
| 12420 | stub_sec = stub_sec->next) | |
| 12421 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12422 | stub_sec->size = ((stub_sec->size |
| 12423 | + (1 << htab->params->plt_stub_align) - 1) | |
| 12424 | & (-1 << htab->params->plt_stub_align)); | |
| 794e51c0 | 12425 | |
| e7d1c40c | 12426 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12427 | stub_sec != NULL; |
| 12428 | stub_sec = stub_sec->next) | |
| 12429 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| 12430 | && stub_sec->rawsize != stub_sec->size) | |
| 12431 | break; | |
| 12432 | ||
| 12433 | /* Exit from this loop when no stubs have been added, and no stubs | |
| 12434 | have changed size. */ | |
| 58d180e8 AM |
12435 | if (stub_sec == NULL |
| 12436 | && (htab->glink_eh_frame == NULL | |
| 12437 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12438 | break; |
| 12439 | ||
| 721956f4 | 12440 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12441 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12442 | } |
| 12443 | ||
| da44f4e5 AM |
12444 | if (htab->glink_eh_frame != NULL |
| 12445 | && htab->glink_eh_frame->size != 0) | |
| 12446 | { | |
| 12447 | bfd_vma val; | |
| 12448 | bfd_byte *p, *last_fde; | |
| 12449 | size_t last_fde_len, size, align, pad; | |
| 12450 | asection *stub_sec; | |
| 12451 | ||
| 12452 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12453 | if (p == NULL) | |
| 12454 | return FALSE; | |
| 12455 | htab->glink_eh_frame->contents = p; | |
| 12456 | last_fde = p; | |
| 12457 | ||
| 12458 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12459 | /* CIE length (rewrite in case little-endian). */ | |
| 12460 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12461 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12462 | p += sizeof (glink_eh_frame_cie); | |
| 12463 | ||
| 12464 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12465 | stub_sec != NULL; | |
| 12466 | stub_sec = stub_sec->next) | |
| 12467 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12468 | { | |
| 12469 | last_fde = p; | |
| 12470 | last_fde_len = 20; | |
| 12471 | /* FDE length. */ | |
| 12472 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12473 | p += 4; | |
| 12474 | /* CIE pointer. */ | |
| 12475 | val = p - htab->glink_eh_frame->contents; | |
| 12476 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12477 | p += 4; | |
| 12478 | /* Offset to stub section, written later. */ | |
| 12479 | p += 4; | |
| 12480 | /* stub section size. */ | |
| 12481 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12482 | p += 4; | |
| 12483 | /* Augmentation. */ | |
| 12484 | p += 1; | |
| 12485 | /* Pad. */ | |
| 12486 | p += 7; | |
| 12487 | } | |
| 12488 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12489 | { | |
| 12490 | last_fde = p; | |
| 12491 | last_fde_len = 20; | |
| 12492 | /* FDE length. */ | |
| 12493 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12494 | p += 4; | |
| 12495 | /* CIE pointer. */ | |
| 12496 | val = p - htab->glink_eh_frame->contents; | |
| 12497 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12498 | p += 4; | |
| 12499 | /* Offset to .glink, written later. */ | |
| 12500 | p += 4; | |
| 12501 | /* .glink size. */ | |
| 12502 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12503 | p += 4; | |
| 12504 | /* Augmentation. */ | |
| 12505 | p += 1; | |
| 12506 | ||
| 12507 | *p++ = DW_CFA_advance_loc + 1; | |
| 12508 | *p++ = DW_CFA_register; | |
| 12509 | *p++ = 65; | |
| 12510 | *p++ = 12; | |
| 12511 | *p++ = DW_CFA_advance_loc + 4; | |
| 12512 | *p++ = DW_CFA_restore_extended; | |
| 12513 | *p++ = 65; | |
| 12514 | } | |
| 12515 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12516 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12517 | zero padding will be seen as a terminator. */ | |
| 12518 | size = p - htab->glink_eh_frame->contents; | |
| 12519 | align = 1; | |
| 12520 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12521 | align -= 1; | |
| 12522 | pad = ((size + align) & ~align) - size; | |
| 12523 | htab->glink_eh_frame->size = size + pad; | |
| 12524 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12525 | } | |
| 12526 | ||
| d969d15f AM |
12527 | maybe_strip_output (info, htab->brlt); |
| 12528 | if (htab->glink_eh_frame != NULL) | |
| 12529 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12530 | |
| b34976b6 | 12531 | return TRUE; |
| 721956f4 AM |
12532 | } |
| 12533 | ||
| 12534 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12535 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12536 | |
| 805fc799 | 12537 | bfd_vma |
| 1c865ab2 | 12538 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12539 | { |
| 805fc799 | 12540 | asection *s; |
| a27e685f | 12541 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12542 | |
| 805fc799 AM |
12543 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12544 | order. The TOC starts where the first of these sections starts. */ | |
| 12545 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12546 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12547 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12548 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12549 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12550 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12551 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12552 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12553 | { |
| 12554 | /* This may happen for | |
| 12555 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12556 | .toc directive | |
| 12557 | o bad linker script | |
| 12558 | o --gc-sections and empty TOC sections | |
| 12559 | ||
| 12560 | FIXME: Warn user? */ | |
| 12561 | ||
| 12562 | /* Look for a likely section. We probably won't even be | |
| 12563 | using TOCstart. */ | |
| 12564 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12565 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12566 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12567 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12568 | break; | |
| 721956f4 | 12569 | if (s == NULL) |
| 805fc799 | 12570 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12571 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12572 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12573 | break; | |
| 721956f4 | 12574 | if (s == NULL) |
| 805fc799 | 12575 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12576 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12577 | == SEC_ALLOC) | |
| 805fc799 | 12578 | break; |
| 721956f4 | 12579 | if (s == NULL) |
| 805fc799 | 12580 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12581 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12582 | break; |
| 12583 | } | |
| 721956f4 | 12584 | |
| 805fc799 AM |
12585 | TOCstart = 0; |
| 12586 | if (s != NULL) | |
| 12587 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12588 | |
| a27e685f AM |
12589 | /* Force alignment. */ |
| 12590 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12591 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12592 | _bfd_set_gp_value (obfd, TOCstart); |
| 12593 | ||
| 810d4e75 | 12594 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12595 | { |
| 12596 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12597 | ||
| 810d4e75 AM |
12598 | if (htab != NULL) |
| 12599 | { | |
| 12600 | if (htab->elf.hgot != NULL) | |
| 12601 | { | |
| a27e685f | 12602 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12603 | htab->elf.hgot->root.u.def.section = s; |
| 12604 | } | |
| 12605 | } | |
| 12606 | else | |
| 1c865ab2 | 12607 | { |
| 810d4e75 AM |
12608 | struct bfd_link_hash_entry *bh = NULL; |
| 12609 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12610 | s, TOC_BASE_OFF - adjust, |
| 12611 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12612 | } |
| 12613 | } | |
| 805fc799 | 12614 | return TOCstart; |
| 721956f4 AM |
12615 | } |
| 12616 | ||
| a345bc8d AM |
12617 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12618 | write out any global entry stubs. */ | |
| 12619 | ||
| 12620 | static bfd_boolean | |
| 12621 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12622 | { | |
| 12623 | struct bfd_link_info *info; | |
| 12624 | struct ppc_link_hash_table *htab; | |
| 12625 | struct plt_entry *pent; | |
| 12626 | asection *s; | |
| 12627 | ||
| 12628 | if (h->root.type == bfd_link_hash_indirect) | |
| 12629 | return TRUE; | |
| 12630 | ||
| 12631 | if (!h->pointer_equality_needed) | |
| 12632 | return TRUE; | |
| 12633 | ||
| 12634 | if (h->def_regular) | |
| 12635 | return TRUE; | |
| 12636 | ||
| 12637 | info = inf; | |
| 12638 | htab = ppc_hash_table (info); | |
| 12639 | if (htab == NULL) | |
| 12640 | return FALSE; | |
| 12641 | ||
| 12642 | s = htab->glink; | |
| 12643 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12644 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12645 | && pent->addend == 0) | |
| 12646 | { | |
| 12647 | bfd_byte *p; | |
| 12648 | asection *plt; | |
| 12649 | bfd_vma off; | |
| 12650 | ||
| a345bc8d | 12651 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12652 | plt = htab->elf.splt; |
| a345bc8d AM |
12653 | if (!htab->elf.dynamic_sections_created |
| 12654 | || h->dynindx == -1) | |
| 33e44f2e | 12655 | plt = htab->elf.iplt; |
| a345bc8d AM |
12656 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12657 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12658 | ||
| 12659 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12660 | { | |
| 12661 | info->callbacks->einfo | |
| 12662 | (_("%P: linkage table error against `%T'\n"), | |
| 12663 | h->root.root.string); | |
| 12664 | bfd_set_error (bfd_error_bad_value); | |
| 12665 | htab->stub_error = TRUE; | |
| 12666 | } | |
| 12667 | ||
| 7341d5e2 AM |
12668 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12669 | if (htab->params->emit_stub_syms) | |
| 12670 | { | |
| 12671 | size_t len = strlen (h->root.root.string); | |
| 12672 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12673 | ||
| 12674 | if (name == NULL) | |
| 12675 | return FALSE; | |
| 12676 | ||
| 12677 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12678 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12679 | if (h == NULL) | |
| 12680 | return FALSE; | |
| 12681 | if (h->root.type == bfd_link_hash_new) | |
| 12682 | { | |
| 12683 | h->root.type = bfd_link_hash_defined; | |
| 12684 | h->root.u.def.section = s; | |
| 12685 | h->root.u.def.value = p - s->contents; | |
| 12686 | h->ref_regular = 1; | |
| 12687 | h->def_regular = 1; | |
| 12688 | h->ref_regular_nonweak = 1; | |
| 12689 | h->forced_local = 1; | |
| 12690 | h->non_elf = 0; | |
| 2ec55de3 | 12691 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12692 | } |
| 12693 | } | |
| 12694 | ||
| a345bc8d AM |
12695 | if (PPC_HA (off) != 0) |
| 12696 | { | |
| 12697 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12698 | p += 4; | |
| 12699 | } | |
| 12700 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 12701 | p += 4; | |
| 12702 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 12703 | p += 4; | |
| 12704 | bfd_put_32 (s->owner, BCTR, p); | |
| 12705 | break; | |
| 12706 | } | |
| 12707 | return TRUE; | |
| 12708 | } | |
| 12709 | ||
| 721956f4 AM |
12710 | /* Build all the stubs associated with the current output file. |
| 12711 | The stubs are kept in a hash table attached to the main linker | |
| 12712 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12713 | ||
| b34976b6 | 12714 | bfd_boolean |
| e7d1c40c | 12715 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 12716 | char **stats) |
| 5d1634d7 AM |
12717 | { |
| 12718 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 721956f4 | 12719 | asection *stub_sec; |
| 5d1634d7 | 12720 | bfd_byte *p; |
| e717da7e | 12721 | int stub_sec_count = 0; |
| 5d1634d7 | 12722 | |
| 4dfe6ac6 NC |
12723 | if (htab == NULL) |
| 12724 | return FALSE; | |
| 12725 | ||
| eea6121a | 12726 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 12727 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12728 | stub_sec != NULL; |
| 12729 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12730 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12731 | && stub_sec->size != 0) | |
| e717da7e | 12732 | { |
| e7d1c40c | 12733 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
12734 | if (stub_sec->contents == NULL) |
| 12735 | return FALSE; | |
| 12736 | /* We want to check that built size is the same as calculated | |
| 12737 | size. rawsize is a convenient location to use. */ | |
| 12738 | stub_sec->rawsize = stub_sec->size; | |
| 12739 | stub_sec->size = 0; | |
| e717da7e | 12740 | } |
| 5d1634d7 | 12741 | |
| 23eb7e01 | 12742 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12743 | { |
| 9f951329 | 12744 | unsigned int indx; |
| ad8e1ba5 | 12745 | bfd_vma plt0; |
| 9f951329 | 12746 | |
| 721956f4 | 12747 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 12748 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
12749 | { |
| 12750 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12751 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12752 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12753 | if (h == NULL) |
| 12754 | return FALSE; | |
| 12755 | if (h->root.type == bfd_link_hash_new) | |
| 12756 | { | |
| 12757 | h->root.type = bfd_link_hash_defined; | |
| 12758 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12759 | h->root.u.def.value = 8; |
| f5385ebf AM |
12760 | h->ref_regular = 1; |
| 12761 | h->def_regular = 1; | |
| 12762 | h->ref_regular_nonweak = 1; | |
| 12763 | h->forced_local = 1; | |
| 12764 | h->non_elf = 0; | |
| 2ec55de3 | 12765 | h->root.linker_def = 1; |
| 97b639ba AM |
12766 | } |
| 12767 | } | |
| 33e44f2e AM |
12768 | plt0 = (htab->elf.splt->output_section->vma |
| 12769 | + htab->elf.splt->output_offset | |
| 12770 | - 16); | |
| 176a0d42 AM |
12771 | if (info->emitrelocations) |
| 12772 | { | |
| 12773 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12774 | if (r == NULL) | |
| 12775 | return FALSE; | |
| 12776 | r->r_offset = (htab->glink->output_offset | |
| 12777 | + htab->glink->output_section->vma); | |
| 12778 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12779 | r->r_addend = plt0; | |
| 12780 | } | |
| 4ce794b7 | 12781 | p = htab->glink->contents; |
| 176a0d42 | 12782 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12783 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12784 | p += 8; | |
| b9e5796b AM |
12785 | if (htab->opd_abi) |
| 12786 | { | |
| 12787 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 12788 | p += 4; | |
| 12789 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12790 | p += 4; | |
| 12791 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12792 | p += 4; | |
| 12793 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12794 | p += 4; | |
| 12795 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 12796 | p += 4; | |
| 12797 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12798 | p += 4; | |
| 12799 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12800 | p += 4; | |
| 12801 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 12802 | p += 4; | |
| 12803 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12804 | p += 4; | |
| 12805 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 12806 | p += 4; | |
| 12807 | } | |
| 12808 | else | |
| 12809 | { | |
| 12810 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 12811 | p += 4; | |
| 12812 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12813 | p += 4; | |
| 12814 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12815 | p += 4; | |
| 12816 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12817 | p += 4; | |
| 12818 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 12819 | p += 4; | |
| 12820 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 12821 | p += 4; | |
| 12822 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12823 | p += 4; | |
| 12824 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 12825 | p += 4; | |
| 12826 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12827 | p += 4; | |
| 12828 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 12829 | p += 4; | |
| 12830 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12831 | p += 4; | |
| 12832 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 12833 | p += 4; | |
| 12834 | } | |
| 4ce794b7 | 12835 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 12836 | p += 4; |
| ee4bf8d2 AM |
12837 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 12838 | { | |
| 12839 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 12840 | p += 4; | |
| 12841 | } | |
| ad8e1ba5 | 12842 | |
| 9f951329 AM |
12843 | /* Build the .glink lazy link call stubs. */ |
| 12844 | indx = 0; | |
| a345bc8d | 12845 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 12846 | { |
| b9e5796b | 12847 | if (htab->opd_abi) |
| 9f951329 | 12848 | { |
| b9e5796b AM |
12849 | if (indx < 0x8000) |
| 12850 | { | |
| 12851 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 12852 | p += 4; | |
| 12853 | } | |
| 12854 | else | |
| 12855 | { | |
| 12856 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 12857 | p += 4; | |
| 12858 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 12859 | p); | |
| 12860 | p += 4; | |
| 12861 | } | |
| 9f951329 | 12862 | } |
| 4ce794b7 | 12863 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 12864 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 12865 | indx++; |
| 9f951329 AM |
12866 | p += 4; |
| 12867 | } | |
| a345bc8d AM |
12868 | |
| 12869 | /* Build .glink global entry stubs. */ | |
| 12870 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 12871 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 12872 | } |
| 5d1634d7 | 12873 | |
| 7341d5e2 | 12874 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 12875 | { |
| 4ce794b7 | 12876 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 12877 | htab->brlt->size); |
| 4ce794b7 | 12878 | if (htab->brlt->contents == NULL) |
| b34976b6 | 12879 | return FALSE; |
| 721956f4 | 12880 | } |
| ee75fd95 | 12881 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
12882 | { |
| 12883 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 12884 | htab->relbrlt->size); |
| 63bc6f6c AM |
12885 | if (htab->relbrlt->contents == NULL) |
| 12886 | return FALSE; | |
| 12887 | } | |
| 5d1634d7 | 12888 | |
| 721956f4 AM |
12889 | /* Build the stubs as directed by the stub hash table. */ |
| 12890 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 12891 | |
| aa8a7074 AM |
12892 | if (htab->relbrlt != NULL) |
| 12893 | htab->relbrlt->reloc_count = 0; | |
| 12894 | ||
| e7d1c40c AM |
12895 | if (htab->params->plt_stub_align != 0) |
| 12896 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12897 | stub_sec != NULL; |
| 12898 | stub_sec = stub_sec->next) | |
| 12899 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12900 | stub_sec->size = ((stub_sec->size |
| 12901 | + (1 << htab->params->plt_stub_align) - 1) | |
| 12902 | & (-1 << htab->params->plt_stub_align)); | |
| 794e51c0 | 12903 | |
| e7d1c40c | 12904 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12905 | stub_sec != NULL; |
| 12906 | stub_sec = stub_sec->next) | |
| e717da7e AM |
12907 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 12908 | { | |
| 12909 | stub_sec_count += 1; | |
| eea6121a | 12910 | if (stub_sec->rawsize != stub_sec->size) |
| e717da7e AM |
12911 | break; |
| 12912 | } | |
| 5d1634d7 | 12913 | |
| da44f4e5 AM |
12914 | /* Note that the glink_eh_frame check here is not only testing that |
| 12915 | the generated size matched the calculated size but also that | |
| 12916 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 12917 | if (stub_sec != NULL |
| 58d180e8 AM |
12918 | || (htab->glink_eh_frame != NULL |
| 12919 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 12920 | { |
| b34976b6 | 12921 | htab->stub_error = TRUE; |
| 8de848d8 | 12922 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 12923 | } |
| 721956f4 | 12924 | |
| d2a300cf AM |
12925 | if (htab->stub_error) |
| 12926 | return FALSE; | |
| 12927 | ||
| 12928 | if (stats != NULL) | |
| 12929 | { | |
| 12930 | *stats = bfd_malloc (500); | |
| 12931 | if (*stats == NULL) | |
| 12932 | return FALSE; | |
| 12933 | ||
| ee75fd95 | 12934 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
12935 | " branch %lu\n" |
| 12936 | " toc adjust %lu\n" | |
| 12937 | " long branch %lu\n" | |
| 12938 | " long toc adj %lu\n" | |
| 794e51c0 | 12939 | " plt call %lu\n" |
| 7341d5e2 AM |
12940 | " plt call toc %lu\n" |
| 12941 | " global entry %lu"), | |
| e717da7e | 12942 | stub_sec_count, |
| ee75fd95 | 12943 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
12944 | htab->stub_count[ppc_stub_long_branch - 1], |
| 12945 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 12946 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 12947 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 12948 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
12949 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 12950 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
12951 | } |
| 12952 | return TRUE; | |
| 5bd4f169 AM |
12953 | } |
| 12954 | ||
| 99877b66 AM |
12955 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 12956 | ||
| 12957 | static bfd_boolean | |
| 12958 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 12959 | { | |
| 12960 | struct ppc_link_hash_entry *eh; | |
| 12961 | ||
| 12962 | if (h->root.type == bfd_link_hash_indirect) | |
| 12963 | return TRUE; | |
| 12964 | ||
| 99877b66 AM |
12965 | eh = (struct ppc_link_hash_entry *) h; |
| 12966 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 12967 | return TRUE; | |
| 12968 | ||
| 12969 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 12970 | return TRUE; | |
| 12971 | } | |
| 12972 | ||
| 12973 | void | |
| 12974 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 12975 | { | |
| 12976 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
12977 | |
| 12978 | if (htab != NULL) | |
| 12979 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
12980 | } |
| 12981 | ||
| 60124e18 AM |
12982 | /* What to do when ld finds relocations against symbols defined in |
| 12983 | discarded sections. */ | |
| 12984 | ||
| 12985 | static unsigned int | |
| 12986 | ppc64_elf_action_discarded (asection *sec) | |
| 12987 | { | |
| 12988 | if (strcmp (".opd", sec->name) == 0) | |
| 12989 | return 0; | |
| 12990 | ||
| 12991 | if (strcmp (".toc", sec->name) == 0) | |
| 12992 | return 0; | |
| 12993 | ||
| bce50a28 JJ |
12994 | if (strcmp (".toc1", sec->name) == 0) |
| 12995 | return 0; | |
| 12996 | ||
| 60124e18 AM |
12997 | return _bfd_elf_default_action_discarded (sec); |
| 12998 | } | |
| 12999 | ||
| 5bd4f169 AM |
13000 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13001 | to handle the relocations for a section. | |
| 13002 | ||
| 13003 | The relocs are always passed as Rela structures; if the section | |
| 13004 | actually uses Rel structures, the r_addend field will always be | |
| 13005 | zero. | |
| 13006 | ||
| 13007 | This function is responsible for adjust the section contents as | |
| 13008 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13009 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13010 | necessary. |
| 13011 | ||
| 13012 | This function does not have to worry about setting the reloc | |
| 13013 | address or the reloc symbol index. | |
| 13014 | ||
| 13015 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13016 | ||
| 13017 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13018 | corresponding to the st_shndx field of each local symbol. | |
| 13019 | ||
| 13020 | The global hash table entry for the global symbols can be found | |
| 13021 | via elf_sym_hashes (input_bfd). | |
| 13022 | ||
| 1049f94e | 13023 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13024 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13025 | going to be the section symbol corresponding to the output | |
| 13026 | section, which means that the addend must be adjusted | |
| 13027 | accordingly. */ | |
| 13028 | ||
| b34976b6 | 13029 | static bfd_boolean |
| 4ce794b7 AM |
13030 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13031 | struct bfd_link_info *info, | |
| 13032 | bfd *input_bfd, | |
| 13033 | asection *input_section, | |
| 13034 | bfd_byte *contents, | |
| 13035 | Elf_Internal_Rela *relocs, | |
| 13036 | Elf_Internal_Sym *local_syms, | |
| 13037 | asection **local_sections) | |
| 5bd4f169 | 13038 | { |
| 65f38f15 | 13039 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13040 | Elf_Internal_Shdr *symtab_hdr; |
| 13041 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 AM |
13042 | Elf_Internal_Rela *rel; |
| 13043 | Elf_Internal_Rela *relend; | |
| 411e1bfb AM |
13044 | Elf_Internal_Rela outrel; |
| 13045 | bfd_byte *loc; | |
| 411e1bfb | 13046 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13047 | bfd_vma TOCstart; |
| b34976b6 AM |
13048 | bfd_boolean ret = TRUE; |
| 13049 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13050 | /* Assume 'at' branch hints. */ |
| 13051 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 13052 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 13053 | |
| 65f38f15 | 13054 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13055 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13056 | ppc_howto_init (); |
| 13057 | ||
| 65f38f15 | 13058 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13059 | if (htab == NULL) |
| 13060 | return FALSE; | |
| ee75fd95 AM |
13061 | |
| 13062 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13063 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13064 | return TRUE; |
| 13065 | ||
| 0c8d6e5c | 13066 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13067 | |
| 411e1bfb | 13068 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13069 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13070 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13071 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13072 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13073 | |
| 5bd4f169 AM |
13074 | rel = relocs; |
| 13075 | relend = relocs + input_section->reloc_count; | |
| 13076 | for (; rel < relend; rel++) | |
| 13077 | { | |
| 04c9666a | 13078 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13079 | bfd_vma addend; |
| 5bd4f169 AM |
13080 | bfd_reloc_status_type r; |
| 13081 | Elf_Internal_Sym *sym; | |
| 13082 | asection *sec; | |
| 039b3fef AM |
13083 | struct elf_link_hash_entry *h_elf; |
| 13084 | struct ppc_link_hash_entry *h; | |
| 13085 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13086 | const char *sym_name; |
| 0d4792f7 | 13087 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13088 | bfd_vma toc_addend; |
| f961d9dd AM |
13089 | unsigned char tls_mask, tls_gd, tls_type; |
| 13090 | unsigned char sym_type; | |
| 5bd4f169 | 13091 | bfd_vma relocation; |
| b34976b6 AM |
13092 | bfd_boolean unresolved_reloc; |
| 13093 | bfd_boolean warned; | |
| bc30df16 | 13094 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13095 | unsigned int insn; |
| e11840f9 | 13096 | unsigned int mask; |
| 721956f4 AM |
13097 | struct ppc_stub_hash_entry *stub_entry; |
| 13098 | bfd_vma max_br_offset; | |
| 13099 | bfd_vma from; | |
| 31c76678 | 13100 | const Elf_Internal_Rela orig_rel = *rel; |
| b80eed39 AM |
13101 | reloc_howto_type *howto; |
| 13102 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13103 | |
| 4ce794b7 | 13104 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13105 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13106 | |
| 13107 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13108 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13109 | proper TOC base to use. */ | |
| 13110 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| 13111 | && rel != relocs | |
| 13112 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
| 13113 | && is_opd) | |
| 13114 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
| 13115 | ||
| 4ce794b7 AM |
13116 | sym = NULL; |
| 13117 | sec = NULL; | |
| 039b3fef | 13118 | h_elf = NULL; |
| 4ce794b7 | 13119 | sym_name = NULL; |
| b34976b6 AM |
13120 | unresolved_reloc = FALSE; |
| 13121 | warned = FALSE; | |
| 65f38f15 | 13122 | |
| 0b13192e | 13123 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13124 | { |
| 13125 | /* It's a local symbol. */ | |
| 74f0fb50 | 13126 | struct _opd_sec_data *opd; |
| 4025353c | 13127 | |
| 5bd4f169 AM |
13128 | sym = local_syms + r_symndx; |
| 13129 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13130 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13131 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13132 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13133 | opd = get_opd_info (sec); |
| 13134 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13135 | { |
| 51aecdc5 AM |
13136 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13137 | + rel->r_addend)]; | |
| 4025353c AM |
13138 | if (adjust == -1) |
| 13139 | relocation = 0; | |
| 13140 | else | |
| 4cc603a5 AM |
13141 | { |
| 13142 | /* If this is a relocation against the opd section sym | |
| 13143 | and we have edited .opd, adjust the reloc addend so | |
| 13144 | that ld -r and ld --emit-relocs output is correct. | |
| 13145 | If it is a reloc against some other .opd symbol, | |
| 13146 | then the symbol value will be adjusted later. */ | |
| 13147 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13148 | rel->r_addend += adjust; | |
| 13149 | else | |
| 13150 | relocation += adjust; | |
| 13151 | } | |
| 1e2f5b6e | 13152 | } |
| 5bd4f169 AM |
13153 | } |
| 13154 | else | |
| 13155 | { | |
| 62d887d4 L |
13156 | bfd_boolean ignored; |
| 13157 | ||
| b2a8e766 AM |
13158 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13159 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13160 | h_elf, sec, relocation, |
| 62d887d4 | 13161 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13162 | sym_name = h_elf->root.root.string; |
| 13163 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13164 | if (sec != NULL |
| 13165 | && sec->owner == output_bfd | |
| 13166 | && strcmp (sec->name, ".opd") == 0) | |
| 13167 | { | |
| 13168 | /* This is a symbol defined in a linker script. All | |
| 13169 | such are defined in output sections, even those | |
| 13170 | defined by simple assignment from a symbol defined in | |
| 13171 | an input section. Transfer the symbol to an | |
| 13172 | appropriate input .opd section, so that a branch to | |
| 13173 | this symbol will be mapped to the location specified | |
| 13174 | by the opd entry. */ | |
| 13175 | struct bfd_link_order *lo; | |
| 13176 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13177 | if (lo->type == bfd_indirect_link_order) | |
| 13178 | { | |
| 13179 | asection *isec = lo->u.indirect.section; | |
| 13180 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13181 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13182 | + isec->size)) | |
| 13183 | { | |
| 13184 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13185 | h_elf->root.u.def.section = isec; | |
| 13186 | sec = isec; | |
| 13187 | break; | |
| 13188 | } | |
| 13189 | } | |
| 13190 | } | |
| 5bd4f169 | 13191 | } |
| 039b3fef | 13192 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13193 | |
| dbaa2011 | 13194 | if (sec != NULL && discarded_section (sec)) |
| e4067dbb | 13195 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
| 545fd46b MR |
13196 | rel, 1, relend, |
| 13197 | ppc64_elf_howto_table[r_type], 0, | |
| e4067dbb | 13198 | contents); |
| ab96bf03 AM |
13199 | |
| 13200 | if (info->relocatable) | |
| 13201 | continue; | |
| 13202 | ||
| f40da81b AM |
13203 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13204 | { | |
| 13205 | relocation = (TOCstart | |
| 13206 | + htab->stub_group[input_section->id].toc_off); | |
| 13207 | sec = bfd_abs_section_ptr; | |
| 13208 | unresolved_reloc = FALSE; | |
| 13209 | } | |
| 13210 | ||
| 951fd09b AM |
13211 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13212 | based on information we collected in tls_optimize. We edit | |
| 13213 | RELOCS so that --emit-relocs will output something sensible | |
| 13214 | for the final instruction stream. */ | |
| 13215 | tls_mask = 0; | |
| 13216 | tls_gd = 0; | |
| 0d4792f7 | 13217 | toc_symndx = 0; |
| 727fc41e AM |
13218 | if (h != NULL) |
| 13219 | tls_mask = h->tls_mask; | |
| 13220 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13221 | { |
| e054468f AM |
13222 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13223 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13224 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13225 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13226 | tls_mask = lgot_masks[r_symndx]; |
| 13227 | } | |
| 13228 | if (tls_mask == 0 | |
| 13229 | && (r_type == R_PPC64_TLS | |
| 13230 | || r_type == R_PPC64_TLSGD | |
| 13231 | || r_type == R_PPC64_TLSLD)) | |
| 13232 | { | |
| 13233 | /* Check for toc tls entries. */ | |
| f961d9dd | 13234 | unsigned char *toc_tls; |
| 0d4792f7 | 13235 | |
| 727fc41e AM |
13236 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13237 | &local_syms, rel, input_bfd)) | |
| 13238 | return FALSE; | |
| 0d4792f7 | 13239 | |
| 727fc41e AM |
13240 | if (toc_tls) |
| 13241 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13242 | } |
| 13243 | ||
| 13244 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13245 | relocs are used with non-tls syms. */ | |
| cf35638d | 13246 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13247 | && r_type != R_PPC64_NONE |
| 13248 | && (h == NULL | |
| 039b3fef AM |
13249 | || h->elf.root.type == bfd_link_hash_defined |
| 13250 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13251 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13252 | != (sym_type == STT_TLS | |
| 13253 | || (sym_type == STT_SECTION | |
| 13254 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13255 | { |
| 727fc41e AM |
13256 | if (tls_mask != 0 |
| 13257 | && (r_type == R_PPC64_TLS | |
| 13258 | || r_type == R_PPC64_TLSGD | |
| 13259 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13260 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13261 | ; | |
| 13262 | else | |
| 25f53a85 | 13263 | info->callbacks->einfo |
| 1d483afe | 13264 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
13265 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 13266 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 13267 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13268 | ppc64_elf_howto_table[r_type]->name, |
| 13269 | sym_name); | |
| 411e1bfb AM |
13270 | } |
| 13271 | ||
| 13272 | /* Ensure reloc mapping code below stays sane. */ | |
| 13273 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13274 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13275 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13276 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13277 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13278 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13279 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13280 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13281 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13282 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13283 | abort (); | |
| 0d4792f7 | 13284 | |
| 411e1bfb AM |
13285 | switch (r_type) |
| 13286 | { | |
| 13287 | default: | |
| 411e1bfb AM |
13288 | break; |
| 13289 | ||
| ba761f19 AM |
13290 | case R_PPC64_LO_DS_OPT: |
| 13291 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 13292 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 13293 | abort (); | |
| 13294 | insn += (14u << 26) - (58u << 26); | |
| 13295 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 13296 | r_type = R_PPC64_TOC16_LO; | |
| 13297 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13298 | break; | |
| 13299 | ||
| 411e1bfb AM |
13300 | case R_PPC64_TOC16: |
| 13301 | case R_PPC64_TOC16_LO: | |
| 13302 | case R_PPC64_TOC16_DS: | |
| 13303 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13304 | { |
| 13305 | /* Check for toc tls entries. */ | |
| f961d9dd | 13306 | unsigned char *toc_tls; |
| 951fd09b | 13307 | int retval; |
| 411e1bfb | 13308 | |
| 3a71aa26 AM |
13309 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13310 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13311 | if (retval == 0) |
| 411e1bfb AM |
13312 | return FALSE; |
| 13313 | ||
| 13314 | if (toc_tls) | |
| 13315 | { | |
| 951fd09b | 13316 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13317 | if (r_type == R_PPC64_TOC16_DS |
| 13318 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13319 | { |
| 13320 | if (tls_mask != 0 | |
| 13321 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13322 | goto toctprel; | |
| 13323 | } | |
| 411e1bfb | 13324 | else |
| 951fd09b AM |
13325 | { |
| 13326 | /* If we found a GD reloc pair, then we might be | |
| 13327 | doing a GD->IE transition. */ | |
| 13328 | if (retval == 2) | |
| 13329 | { | |
| 13330 | tls_gd = TLS_TPRELGD; | |
| 13331 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13332 | goto tls_ldgd_opt; |
| 951fd09b AM |
13333 | } |
| 13334 | else if (retval == 3) | |
| 13335 | { | |
| 13336 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13337 | goto tls_ldgd_opt; |
| 951fd09b AM |
13338 | } |
| 13339 | } | |
| 411e1bfb AM |
13340 | } |
| 13341 | } | |
| 13342 | break; | |
| 13343 | ||
| 9d6ded02 AM |
13344 | case R_PPC64_GOT_TPREL16_HI: |
| 13345 | case R_PPC64_GOT_TPREL16_HA: | |
| 13346 | if (tls_mask != 0 | |
| 13347 | && (tls_mask & TLS_TPREL) == 0) | |
| 13348 | { | |
| 13349 | rel->r_offset -= d_offset; | |
| 13350 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 13351 | r_type = R_PPC64_NONE; | |
| 13352 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13353 | } | |
| 13354 | break; | |
| 13355 | ||
| 411e1bfb AM |
13356 | case R_PPC64_GOT_TPREL16_DS: |
| 13357 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13358 | if (tls_mask != 0 |
| 13359 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13360 | { |
| 81407a69 | 13361 | toctprel: |
| 4fe5ca5b | 13362 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13363 | insn &= 31 << 21; |
| 13364 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 4fe5ca5b | 13365 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); |
| 411e1bfb | 13366 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13367 | if (toc_symndx != 0) |
| 13368 | { | |
| 13369 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13370 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13371 | /* We changed the symbol. Start over in order to |
| 13372 | get h, sym, sec etc. right. */ | |
| 13373 | rel--; | |
| 13374 | continue; | |
| 13375 | } | |
| 13376 | else | |
| 13377 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13378 | } |
| 13379 | break; | |
| 13380 | ||
| 13381 | case R_PPC64_TLS: | |
| 951fd09b AM |
13382 | if (tls_mask != 0 |
| 13383 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13384 | { |
| 411e1bfb | 13385 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13386 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13387 | if (insn == 0) | |
| 411e1bfb | 13388 | abort (); |
| 411e1bfb | 13389 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13390 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13391 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13392 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13393 | r_type = R_PPC64_TPREL16_LO; |
| 13394 | if (toc_symndx != 0) | |
| 13395 | { | |
| 13396 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13397 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13398 | /* We changed the symbol. Start over in order to |
| 13399 | get h, sym, sec etc. right. */ | |
| 13400 | rel--; | |
| 13401 | continue; | |
| 13402 | } | |
| 13403 | else | |
| 13404 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13405 | } |
| 13406 | break; | |
| 13407 | ||
| 411e1bfb AM |
13408 | case R_PPC64_GOT_TLSGD16_HI: |
| 13409 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13410 | tls_gd = TLS_TPRELGD; |
| 13411 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13412 | goto tls_gdld_hi; | |
| 13413 | break; | |
| 13414 | ||
| 411e1bfb AM |
13415 | case R_PPC64_GOT_TLSLD16_HI: |
| 13416 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13417 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13418 | { |
| 951fd09b AM |
13419 | tls_gdld_hi: |
| 13420 | if ((tls_mask & tls_gd) != 0) | |
| 13421 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13422 | + R_PPC64_GOT_TPREL16_DS); | |
| 13423 | else | |
| 411e1bfb | 13424 | { |
| 4fe5ca5b | 13425 | rel->r_offset -= d_offset; |
| 727ac201 | 13426 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13427 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13428 | } |
| 951fd09b | 13429 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13430 | } |
| 13431 | break; | |
| 13432 | ||
| 951fd09b AM |
13433 | case R_PPC64_GOT_TLSGD16: |
| 13434 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13435 | tls_gd = TLS_TPRELGD; | |
| 13436 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13437 | goto tls_ldgd_opt; |
| 951fd09b | 13438 | break; |
| 411e1bfb | 13439 | |
| 951fd09b AM |
13440 | case R_PPC64_GOT_TLSLD16: |
| 13441 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13442 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13443 | { | |
| 3a71aa26 | 13444 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13445 | bfd_vma offset; |
| 13446 | ||
| 13447 | tls_ldgd_opt: | |
| 727fc41e AM |
13448 | offset = (bfd_vma) -1; |
| 13449 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13450 | __tls_get_addr calls, we must trust that the call | |
| 13451 | stays with its arg setup insns, ie. that the next | |
| 13452 | reloc is the __tls_get_addr call associated with | |
| 13453 | the current reloc. Edit both insns. */ | |
| 13454 | if (input_section->has_tls_get_addr_call | |
| 13455 | && rel + 1 < relend | |
| 13456 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13457 | htab->tls_get_addr, | |
| 13458 | htab->tls_get_addr_fd)) | |
| 13459 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13460 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13461 | need to keep the destination reg. It may be | |
| 13462 | something other than the usual r3, and moved to r3 | |
| 13463 | before the call by intervening code. */ | |
| 13464 | insn1 = bfd_get_32 (output_bfd, | |
| 13465 | contents + rel->r_offset - d_offset); | |
| 102890f0 | 13466 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13467 | { |
| 102890f0 | 13468 | /* IE */ |
| b86ac8e3 | 13469 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13470 | insn1 |= 58 << 26; /* ld */ |
| 13471 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13472 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13473 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13474 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13475 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13476 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13477 | else |
| 102890f0 AM |
13478 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13479 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13480 | } | |
| 13481 | else | |
| 13482 | { | |
| 13483 | /* LE */ | |
| b86ac8e3 AM |
13484 | insn1 &= 0x1f << 21; |
| 13485 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13486 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13487 | if (tls_gd == 0) | |
| 951fd09b | 13488 | { |
| 102890f0 | 13489 | /* Was an LD reloc. */ |
| 1d483afe AM |
13490 | if (toc_symndx) |
| 13491 | sec = local_sections[toc_symndx]; | |
| 13492 | for (r_symndx = 0; | |
| 13493 | r_symndx < symtab_hdr->sh_info; | |
| 13494 | r_symndx++) | |
| 13495 | if (local_sections[r_symndx] == sec) | |
| 13496 | break; | |
| 13497 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13498 | r_symndx = STN_UNDEF; |
| 102890f0 | 13499 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13500 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13501 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13502 | + sec->output_offset | |
| 13503 | + sec->output_section->vma); | |
| 951fd09b | 13504 | } |
| 102890f0 | 13505 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13506 | { |
| 13507 | r_symndx = toc_symndx; | |
| 13508 | rel->r_addend = toc_addend; | |
| 13509 | } | |
| 102890f0 AM |
13510 | r_type = R_PPC64_TPREL16_HA; |
| 13511 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13512 | if (offset != (bfd_vma) -1) |
| 13513 | { | |
| 13514 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13515 | R_PPC64_TPREL16_LO); | |
| 13516 | rel[1].r_offset = offset + d_offset; | |
| 13517 | rel[1].r_addend = rel->r_addend; | |
| 13518 | } | |
| 102890f0 | 13519 | } |
| 3a71aa26 AM |
13520 | bfd_put_32 (output_bfd, insn1, |
| 13521 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13522 | if (offset != (bfd_vma) -1) |
| 13523 | { | |
| 13524 | insn3 = bfd_get_32 (output_bfd, | |
| 13525 | contents + offset + 4); | |
| 13526 | if (insn3 == NOP | |
| 13527 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13528 | { | |
| 13529 | rel[1].r_offset += 4; | |
| 13530 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13531 | insn2 = NOP; | |
| 13532 | } | |
| 13533 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13534 | } | |
| 13535 | if ((tls_mask & tls_gd) == 0 | |
| 13536 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13537 | { | |
| 13538 | /* We changed the symbol. Start over in order | |
| 13539 | to get h, sym, sec etc. right. */ | |
| 13540 | rel--; | |
| 13541 | continue; | |
| 13542 | } | |
| 13543 | } | |
| 13544 | break; | |
| 13545 | ||
| 13546 | case R_PPC64_TLSGD: | |
| 13547 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13548 | { | |
| 13549 | unsigned int insn2, insn3; | |
| 13550 | bfd_vma offset = rel->r_offset; | |
| 13551 | ||
| 13552 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13553 | { | |
| 13554 | /* IE */ | |
| 13555 | r_type = R_PPC64_NONE; | |
| 13556 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13557 | } | |
| 13558 | else | |
| 13559 | { | |
| 13560 | /* LE */ | |
| 13561 | if (toc_symndx != 0) | |
| 13562 | { | |
| 13563 | r_symndx = toc_symndx; | |
| 13564 | rel->r_addend = toc_addend; | |
| 13565 | } | |
| 13566 | r_type = R_PPC64_TPREL16_LO; | |
| 13567 | rel->r_offset = offset + d_offset; | |
| 13568 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13569 | } | |
| 13570 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13571 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13572 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13573 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13574 | insn3 = bfd_get_32 (output_bfd, |
| 13575 | contents + offset + 4); | |
| 102890f0 AM |
13576 | if (insn3 == NOP |
| 13577 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13578 | { | |
| 727fc41e | 13579 | rel->r_offset += 4; |
| 3a71aa26 AM |
13580 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13581 | insn2 = NOP; | |
| 102890f0 | 13582 | } |
| 102890f0 | 13583 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13584 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| 102890f0 | 13585 | { |
| 102890f0 AM |
13586 | rel--; |
| 13587 | continue; | |
| 411e1bfb | 13588 | } |
| 411e1bfb | 13589 | } |
| 411e1bfb AM |
13590 | break; |
| 13591 | ||
| 727fc41e AM |
13592 | case R_PPC64_TLSLD: |
| 13593 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13594 | { | |
| 13595 | unsigned int insn2, insn3; | |
| 13596 | bfd_vma offset = rel->r_offset; | |
| 13597 | ||
| 13598 | if (toc_symndx) | |
| 13599 | sec = local_sections[toc_symndx]; | |
| 13600 | for (r_symndx = 0; | |
| 13601 | r_symndx < symtab_hdr->sh_info; | |
| 13602 | r_symndx++) | |
| 13603 | if (local_sections[r_symndx] == sec) | |
| 13604 | break; | |
| 13605 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13606 | r_symndx = STN_UNDEF; |
| 727fc41e | 13607 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13608 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13609 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13610 | + sec->output_offset | |
| 13611 | + sec->output_section->vma); | |
| 13612 | ||
| 13613 | r_type = R_PPC64_TPREL16_LO; | |
| 13614 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13615 | rel->r_offset = offset + d_offset; | |
| 13616 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13617 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13618 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13619 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13620 | insn3 = bfd_get_32 (output_bfd, | |
| 13621 | contents + offset + 4); | |
| 13622 | if (insn3 == NOP | |
| 13623 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13624 | { | |
| 13625 | rel->r_offset += 4; | |
| 13626 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13627 | insn2 = NOP; | |
| 13628 | } | |
| 13629 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13630 | rel--; | |
| 13631 | continue; | |
| 13632 | } | |
| 13633 | break; | |
| 13634 | ||
| 411e1bfb | 13635 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13636 | if (rel + 1 < relend |
| 13637 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13638 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13639 | { |
| 951fd09b AM |
13640 | if ((tls_mask & TLS_GD) == 0) |
| 13641 | { | |
| 13642 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13643 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13644 | r_type = R_PPC64_TPREL64; | |
| 13645 | else | |
| 13646 | { | |
| 4ce794b7 | 13647 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13648 | r_type = R_PPC64_NONE; |
| 13649 | } | |
| 13650 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13651 | } | |
| 13652 | } | |
| 13653 | else | |
| 13654 | { | |
| 13655 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13656 | { |
| 4ce794b7 | 13657 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13658 | r_type = R_PPC64_NONE; |
| 951fd09b | 13659 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13660 | } |
| 411e1bfb AM |
13661 | } |
| 13662 | break; | |
| 13663 | ||
| 13664 | case R_PPC64_TPREL64: | |
| 951fd09b | 13665 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13666 | { |
| 13667 | r_type = R_PPC64_NONE; | |
| 13668 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13669 | } | |
| 13670 | break; | |
| 52a82034 AM |
13671 | |
| 13672 | case R_PPC64_REL16_HA: | |
| 13673 | /* If we are generating a non-PIC executable, edit | |
| 13674 | . 0: addis 2,12,.TOC.-0b@ha | |
| 13675 | . addi 2,2,.TOC.-0b@l | |
| 13676 | used by ELFv2 global entry points to set up r2, to | |
| 13677 | . lis 2,.TOC.@ha | |
| 13678 | . addi 2,2,.TOC.@l | |
| 13679 | if .TOC. is in range. */ | |
| 13680 | if (!info->shared | |
| 810d4e75 | 13681 | && !info->traditional_format |
| 52a82034 AM |
13682 | && h != NULL && &h->elf == htab->elf.hgot |
| 13683 | && rel + 1 < relend | |
| 13684 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 13685 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13686 | && rel[1].r_addend == rel->r_addend + 4 | |
| 13687 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13688 | { | |
| 13689 | unsigned int insn1, insn2; | |
| 13690 | bfd_vma offset = rel->r_offset - d_offset; | |
| 13691 | insn1 = bfd_get_32 (output_bfd, contents + offset); | |
| 13692 | insn2 = bfd_get_32 (output_bfd, contents + offset + 4); | |
| 13693 | if ((insn1 & 0xffff0000) == 0x3c4c0000 /* addis 2,12 */ | |
| 13694 | && (insn2 & 0xffff0000) == 0x38420000 /* addi 2,2 */) | |
| 13695 | { | |
| 13696 | r_type = R_PPC64_ADDR16_HA; | |
| 13697 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13698 | rel->r_addend -= d_offset; | |
| 13699 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 13700 | rel[1].r_addend -= d_offset + 4; | |
| 13701 | bfd_put_32 (output_bfd, 0x3c400000, contents + offset); | |
| 13702 | } | |
| 13703 | } | |
| 13704 | break; | |
| 411e1bfb AM |
13705 | } |
| 13706 | ||
| 13707 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13708 | insn = 0; |
| b25116a9 AM |
13709 | max_br_offset = 1 << 25; |
| 13710 | addend = rel->r_addend; | |
| bc30df16 | 13711 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13712 | switch (r_type) |
| 5bd4f169 AM |
13713 | { |
| 13714 | default: | |
| 65f38f15 | 13715 | break; |
| 5bd4f169 | 13716 | |
| 3b421ab3 AM |
13717 | case R_PPC64_TOCSAVE: |
| 13718 | if (relocation + addend == (rel->r_offset | |
| 13719 | + input_section->output_offset | |
| 13720 | + input_section->output_section->vma) | |
| 13721 | && tocsave_find (htab, NO_INSERT, | |
| 13722 | &local_syms, rel, input_bfd)) | |
| 13723 | { | |
| 13724 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13725 | if (insn == NOP | |
| 13726 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
13727 | bfd_put_32 (input_bfd, |
| 13728 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
13729 | contents + rel->r_offset); |
| 13730 | } | |
| 13731 | break; | |
| 13732 | ||
| 65f38f15 AM |
13733 | /* Branch taken prediction relocations. */ |
| 13734 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13735 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13736 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13737 | /* Fall thru. */ | |
| 65f38f15 | 13738 | |
| 86c76c7b | 13739 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13740 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13741 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13742 | insn |= bfd_get_32 (output_bfd, |
| 13743 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13744 | /* Fall thru. */ |
| 86c76c7b | 13745 | |
| b25116a9 AM |
13746 | case R_PPC64_REL14: |
| 13747 | max_br_offset = 1 << 15; | |
| 13748 | /* Fall thru. */ | |
| 5bd4f169 | 13749 | |
| 65f38f15 | 13750 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
13751 | /* Calls to functions with a different TOC, such as calls to |
| 13752 | shared objects, need to alter the TOC pointer. This is | |
| 13753 | done using a linkage stub. A REL24 branching to these | |
| 13754 | linkage stubs needs to be followed by a nop, as the nop | |
| 13755 | will be replaced with an instruction to restore the TOC | |
| 13756 | base pointer. */ | |
| 8387904d | 13757 | fdh = h; |
| b31867b6 AM |
13758 | if (h != NULL |
| 13759 | && h->oh != NULL | |
| 13760 | && h->oh->is_func_descriptor) | |
| 13761 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
13762 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 13763 | htab); | |
| 6abec6bc | 13764 | if (stub_entry != NULL |
| ad8e1ba5 | 13765 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 13766 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
13767 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 13768 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 13769 | { |
| b25116a9 | 13770 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 13771 | |
| ba8ca3e7 AM |
13772 | /* All of these stubs will modify r2, so there must be a |
| 13773 | branch and link followed by a nop. The nop is | |
| 13774 | replaced by an insn to restore r2. */ | |
| eea6121a | 13775 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 13776 | { |
| ba8ca3e7 AM |
13777 | unsigned long br; |
| 13778 | ||
| 13779 | br = bfd_get_32 (input_bfd, | |
| 13780 | contents + rel->r_offset); | |
| 13781 | if ((br & 1) != 0) | |
| 41bd81ab | 13782 | { |
| ba8ca3e7 AM |
13783 | unsigned long nop; |
| 13784 | ||
| 13785 | nop = bfd_get_32 (input_bfd, | |
| 13786 | contents + rel->r_offset + 4); | |
| 13787 | if (nop == NOP | |
| 13788 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 13789 | { |
| ba8ca3e7 AM |
13790 | if (h != NULL |
| 13791 | && (h == htab->tls_get_addr_fd | |
| 13792 | || h == htab->tls_get_addr) | |
| e7d1c40c | 13793 | && !htab->params->no_tls_get_addr_opt) |
| ba8ca3e7 AM |
13794 | { |
| 13795 | /* Special stub used, leave nop alone. */ | |
| 13796 | } | |
| 13797 | else | |
| a078d95a AM |
13798 | bfd_put_32 (input_bfd, |
| 13799 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
13800 | contents + rel->r_offset + 4); |
| 13801 | can_plt_call = TRUE; | |
| a7f2871e | 13802 | } |
| 41bd81ab | 13803 | } |
| 5bd4f169 | 13804 | } |
| 721956f4 | 13805 | |
| ba8ca3e7 | 13806 | if (!can_plt_call && h != NULL) |
| 721956f4 | 13807 | { |
| ba8ca3e7 AM |
13808 | const char *name = h->elf.root.root.string; |
| 13809 | ||
| 13810 | if (*name == '.') | |
| 13811 | ++name; | |
| 13812 | ||
| 13813 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 13814 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 13815 | { |
| ba8ca3e7 AM |
13816 | /* Allow crt1 branch to go via a toc adjusting |
| 13817 | stub. Other calls that never return could do | |
| 13818 | the same, if we could detect such. */ | |
| b25116a9 | 13819 | can_plt_call = TRUE; |
| 6ab189d5 | 13820 | } |
| ba8ca3e7 AM |
13821 | } |
| 13822 | ||
| 13823 | if (!can_plt_call) | |
| 13824 | { | |
| 13825 | /* g++ as of 20130507 emits self-calls without a | |
| 13826 | following nop. This is arguably wrong since we | |
| 13827 | have conflicting information. On the one hand a | |
| 13828 | global symbol and on the other a local call | |
| 13829 | sequence, but don't error for this special case. | |
| 13830 | It isn't possible to cheaply verify we have | |
| 13831 | exactly such a call. Allow all calls to the same | |
| 13832 | section. */ | |
| 13833 | asection *code_sec = sec; | |
| 13834 | ||
| 13835 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 13836 | { |
| ba8ca3e7 AM |
13837 | bfd_vma off = (relocation + addend |
| 13838 | - sec->output_section->vma | |
| 13839 | - sec->output_offset); | |
| bc30df16 | 13840 | |
| ba8ca3e7 | 13841 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 13842 | } |
| ba8ca3e7 AM |
13843 | if (code_sec == input_section) |
| 13844 | can_plt_call = TRUE; | |
| 13845 | } | |
| 13846 | ||
| 13847 | if (!can_plt_call) | |
| 13848 | { | |
| 4805fc55 AM |
13849 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 13850 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13851 | info->callbacks->einfo | |
| 13852 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13853 | "recompile with -fPIC\n"), | |
| 13854 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 13855 | else | |
| 13856 | info->callbacks->einfo | |
| 13857 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13858 | "(-mcmodel=small toc adjust stub)\n"), | |
| 13859 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
13860 | |
| 13861 | bfd_set_error (bfd_error_bad_value); | |
| 13862 | ret = FALSE; | |
| 721956f4 AM |
13863 | } |
| 13864 | ||
| b25116a9 | 13865 | if (can_plt_call |
| 794e51c0 AM |
13866 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 13867 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
13868 | unresolved_reloc = FALSE; |
| 13869 | } | |
| 13870 | ||
| 6abec6bc AM |
13871 | if ((stub_entry == NULL |
| 13872 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 13873 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
13874 | && get_opd_info (sec) != NULL) |
| 13875 | { | |
| 13876 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
13877 | bfd_vma off = (relocation + addend |
| 13878 | - sec->output_section->vma | |
| 13879 | - sec->output_offset); | |
| aef36ac1 | 13880 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
13881 | if (dest != (bfd_vma) -1) |
| 13882 | { | |
| 13883 | relocation = dest; | |
| 13884 | addend = 0; | |
| bc30df16 | 13885 | reloc_dest = DEST_OPD; |
| 8387904d AM |
13886 | } |
| 13887 | } | |
| 13888 | ||
| b25116a9 AM |
13889 | /* If the branch is out of reach we ought to have a long |
| 13890 | branch stub. */ | |
| 13891 | from = (rel->r_offset | |
| 13892 | + input_section->output_offset | |
| 13893 | + input_section->output_section->vma); | |
| 13894 | ||
| 6911b7dc AM |
13895 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 13896 | ? fdh->elf.other | |
| 13897 | : sym->st_other); | |
| 13898 | ||
| 6abec6bc AM |
13899 | if (stub_entry != NULL |
| 13900 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 13901 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 13902 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 13903 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 13904 | || (relocation + addend - from + max_br_offset | |
| 13905 | < 2 * max_br_offset))) | |
| 13906 | /* Don't use the stub if this branch is in range. */ | |
| 13907 | stub_entry = NULL; | |
| b25116a9 AM |
13908 | |
| 13909 | if (stub_entry != NULL) | |
| 13910 | { | |
| 13911 | /* Munge up the value and addend so that we call the stub | |
| 13912 | rather than the procedure directly. */ | |
| 13913 | relocation = (stub_entry->stub_offset | |
| 13914 | + stub_entry->stub_sec->output_offset | |
| 13915 | + stub_entry->stub_sec->output_section->vma); | |
| 13916 | addend = 0; | |
| bc30df16 | 13917 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 13918 | |
| 794e51c0 AM |
13919 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 13920 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13921 | && (ALWAYS_EMIT_R2SAVE | |
| 13922 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
13923 | && rel + 1 < relend |
| 13924 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13925 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 13926 | relocation += 4; | |
| b25116a9 AM |
13927 | } |
| 13928 | ||
| 13929 | if (insn != 0) | |
| 13930 | { | |
| 794e51c0 | 13931 | if (is_isa_v2) |
| 721956f4 | 13932 | { |
| b25116a9 AM |
13933 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 13934 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 13935 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 13936 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 13937 | insn |= 0x02 << 21; | |
| 13938 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 13939 | insn |= 0x08 << 21; | |
| 13940 | else | |
| 13941 | break; | |
| 13942 | } | |
| 13943 | else | |
| 13944 | { | |
| 13945 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 13946 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 13947 | insn ^= 0x01 << 21; |
| 721956f4 | 13948 | } |
| b25116a9 AM |
13949 | |
| 13950 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 13951 | } |
| e86ce104 | 13952 | |
| 06da1e8e AM |
13953 | /* NOP out calls to undefined weak functions. |
| 13954 | We can thus call a weak function without first | |
| 13955 | checking whether the function is defined. */ | |
| b25116a9 | 13956 | else if (h != NULL |
| 039b3fef | 13957 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 13958 | && h->elf.dynindx == -1 |
| b25116a9 AM |
13959 | && r_type == R_PPC64_REL24 |
| 13960 | && relocation == 0 | |
| 4cc603a5 | 13961 | && addend == 0) |
| e86ce104 | 13962 | { |
| 06da1e8e AM |
13963 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 13964 | continue; | |
| e86ce104 | 13965 | } |
| 65f38f15 AM |
13966 | break; |
| 13967 | } | |
| 5bd4f169 | 13968 | |
| 65f38f15 | 13969 | /* Set `addend'. */ |
| 411e1bfb | 13970 | tls_type = 0; |
| 65f38f15 AM |
13971 | switch (r_type) |
| 13972 | { | |
| 13973 | default: | |
| 25f53a85 | 13974 | info->callbacks->einfo |
| bc30df16 | 13975 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 13976 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 13977 | |
| 65f38f15 | 13978 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 13979 | ret = FALSE; |
| 65f38f15 | 13980 | continue; |
| 5bd4f169 | 13981 | |
| 65f38f15 | 13982 | case R_PPC64_NONE: |
| 411e1bfb | 13983 | case R_PPC64_TLS: |
| 727fc41e AM |
13984 | case R_PPC64_TLSGD: |
| 13985 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 13986 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
13987 | case R_PPC64_GNU_VTINHERIT: |
| 13988 | case R_PPC64_GNU_VTENTRY: | |
| 65f38f15 | 13989 | continue; |
| 5bd4f169 AM |
13990 | |
| 13991 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 13992 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 13993 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 13994 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
13995 | case R_PPC64_GOT_TLSGD16: |
| 13996 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13997 | case R_PPC64_GOT_TLSGD16_HI: | |
| 13998 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 13999 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14000 | goto dogot; |
| 14001 | ||
| 14002 | case R_PPC64_GOT_TLSLD16: | |
| 14003 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14004 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14005 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14006 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14007 | goto dogot; |
| 14008 | ||
| 14009 | case R_PPC64_GOT_TPREL16_DS: | |
| 14010 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14011 | case R_PPC64_GOT_TPREL16_HI: | |
| 14012 | case R_PPC64_GOT_TPREL16_HA: | |
| 14013 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14014 | goto dogot; | |
| 14015 | ||
| 14016 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14017 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14018 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14019 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14020 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14021 | goto dogot; | |
| 14022 | ||
| 65f38f15 AM |
14023 | case R_PPC64_GOT16: |
| 14024 | case R_PPC64_GOT16_LO: | |
| 14025 | case R_PPC64_GOT16_HI: | |
| 14026 | case R_PPC64_GOT16_HA: | |
| 14027 | case R_PPC64_GOT16_DS: | |
| 14028 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14029 | dogot: |
| 5bd4f169 AM |
14030 | { |
| 14031 | /* Relocation is to the entry for this symbol in the global | |
| 14032 | offset table. */ | |
| e717da7e | 14033 | asection *got; |
| d881513a | 14034 | bfd_vma *offp; |
| 5bd4f169 | 14035 | bfd_vma off; |
| d881513a | 14036 | unsigned long indx = 0; |
| 927be08e | 14037 | struct got_entry *ent; |
| 65f38f15 | 14038 | |
| d881513a AM |
14039 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14040 | && (h == NULL | |
| f5385ebf | 14041 | || !h->elf.def_dynamic)) |
| 927be08e | 14042 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14043 | else |
| 5bd4f169 | 14044 | { |
| 5bd4f169 | 14045 | |
| d881513a AM |
14046 | if (h != NULL) |
| 14047 | { | |
| 14048 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 039b3fef AM |
14049 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
| 14050 | &h->elf) | |
| d881513a | 14051 | || (info->shared |
| afe397ea | 14052 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14053 | /* This is actually a static link, or it is a |
| 14054 | -Bsymbolic link and the symbol is defined | |
| 14055 | locally, or the symbol was forced to be local | |
| 14056 | because of a version file. */ | |
| 14057 | ; | |
| 14058 | else | |
| 14059 | { | |
| 14acf4dc | 14060 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14061 | indx = h->elf.dynindx; |
| d881513a AM |
14062 | unresolved_reloc = FALSE; |
| 14063 | } | |
| 039b3fef | 14064 | ent = h->elf.got.glist; |
| d881513a | 14065 | } |
| 411e1bfb | 14066 | else |
| 5bd4f169 | 14067 | { |
| d881513a AM |
14068 | if (local_got_ents == NULL) |
| 14069 | abort (); | |
| 14070 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14071 | } |
| d881513a AM |
14072 | |
| 14073 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14074 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14075 | && ent->owner == input_bfd |
| d881513a AM |
14076 | && ent->tls_type == tls_type) |
| 14077 | break; | |
| 5bd4f169 | 14078 | } |
| 411e1bfb | 14079 | |
| 927be08e AM |
14080 | if (ent == NULL) |
| 14081 | abort (); | |
| 14082 | if (ent->is_indirect) | |
| 14083 | ent = ent->got.ent; | |
| 14084 | offp = &ent->got.offset; | |
| 14085 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14086 | if (got == NULL) |
| 14087 | abort (); | |
| 14088 | ||
| 411e1bfb AM |
14089 | /* The offset must always be a multiple of 8. We use the |
| 14090 | least significant bit to record whether we have already | |
| 14091 | processed this entry. */ | |
| d881513a | 14092 | off = *offp; |
| 411e1bfb AM |
14093 | if ((off & 1) != 0) |
| 14094 | off &= ~1; | |
| 5bd4f169 AM |
14095 | else |
| 14096 | { | |
| 411e1bfb AM |
14097 | /* Generate relocs for the dynamic linker, except in |
| 14098 | the case of TLSLD where we'll use one entry per | |
| 14099 | module. */ | |
| 25f23106 AM |
14100 | asection *relgot; |
| 14101 | bfd_boolean ifunc; | |
| e717da7e | 14102 | |
| d881513a | 14103 | *offp = off | 1; |
| 25f23106 AM |
14104 | relgot = NULL; |
| 14105 | ifunc = (h != NULL | |
| 14106 | ? h->elf.type == STT_GNU_IFUNC | |
| 14107 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14108 | if (ifunc) |
| 33e44f2e | 14109 | relgot = htab->elf.irelplt; |
| 19e08130 AM |
14110 | else if ((info->shared || indx != 0) |
| 14111 | && (h == NULL | |
| 14112 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14113 | && !h->elf.def_dynamic) | |
| 14114 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14115 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14116 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14117 | if (relgot != NULL) |
| 5bd4f169 | 14118 | { |
| e717da7e AM |
14119 | outrel.r_offset = (got->output_section->vma |
| 14120 | + got->output_offset | |
| 411e1bfb | 14121 | + off); |
| 4cc603a5 | 14122 | outrel.r_addend = addend; |
| d881513a | 14123 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14124 | { |
| 411e1bfb | 14125 | outrel.r_addend = 0; |
| e515b051 | 14126 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14127 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14128 | { | |
| e717da7e AM |
14129 | loc = relgot->contents; |
| 14130 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14131 | * sizeof (Elf64_External_Rela)); |
| 14132 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14133 | &outrel, loc); | |
| e515b051 | 14134 | outrel.r_offset += 8; |
| 4cc603a5 | 14135 | outrel.r_addend = addend; |
| d881513a AM |
14136 | outrel.r_info |
| 14137 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14138 | } |
| 411e1bfb | 14139 | } |
| 951fd09b | 14140 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14141 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14142 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14143 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14144 | else if (indx != 0) |
| 14145 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14146 | else | |
| 81407a69 | 14147 | { |
| 25f23106 AM |
14148 | if (ifunc) |
| 14149 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14150 | else | |
| 14151 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14152 | |
| 14153 | /* Write the .got section contents for the sake | |
| 14154 | of prelink. */ | |
| e717da7e | 14155 | loc = got->contents + off; |
| 23fbd6fa JJ |
14156 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14157 | loc); | |
| 81407a69 | 14158 | } |
| 81407a69 AM |
14159 | |
| 14160 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14161 | { |
| 14162 | outrel.r_addend += relocation; | |
| 14163 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14164 | { |
| 14165 | if (htab->elf.tls_sec == NULL) | |
| 14166 | outrel.r_addend = 0; | |
| 14167 | else | |
| 14168 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14169 | } | |
| e515b051 | 14170 | } |
| e717da7e AM |
14171 | loc = relgot->contents; |
| 14172 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14173 | * sizeof (Elf64_External_Rela)); |
| 14174 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14175 | } | |
| 14176 | ||
| ad8e1ba5 | 14177 | /* Init the .got section contents here if we're not |
| 81407a69 | 14178 | emitting a reloc. */ |
| d881513a | 14179 | else |
| 411e1bfb | 14180 | { |
| 4cc603a5 | 14181 | relocation += addend; |
| 7b609f53 AM |
14182 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14183 | relocation = 1; | |
| 14184 | else if (tls_type != 0) | |
| 411e1bfb | 14185 | { |
| 989f9879 AM |
14186 | if (htab->elf.tls_sec == NULL) |
| 14187 | relocation = 0; | |
| 14188 | else | |
| 14189 | { | |
| 14190 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14191 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14192 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14193 | } | |
| 5bd4f169 | 14194 | |
| 7b609f53 AM |
14195 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14196 | { | |
| 14197 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14198 | got->contents + off + 8); |
| 7b609f53 AM |
14199 | relocation = 1; |
| 14200 | } | |
| 411e1bfb | 14201 | } |
| 7b609f53 | 14202 | |
| 411e1bfb | 14203 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14204 | got->contents + off); |
| 5bd4f169 AM |
14205 | } |
| 14206 | } | |
| 14207 | ||
| 65f38f15 AM |
14208 | if (off >= (bfd_vma) -2) |
| 14209 | abort (); | |
| 14210 | ||
| bf102f86 AM |
14211 | relocation = got->output_section->vma + got->output_offset + off; |
| 14212 | addend = -(TOCstart + htab->stub_group[input_section->id].toc_off); | |
| 5bd4f169 | 14213 | } |
| 65f38f15 AM |
14214 | break; |
| 14215 | ||
| 14216 | case R_PPC64_PLT16_HA: | |
| 14217 | case R_PPC64_PLT16_HI: | |
| 14218 | case R_PPC64_PLT16_LO: | |
| 14219 | case R_PPC64_PLT32: | |
| 14220 | case R_PPC64_PLT64: | |
| 14221 | /* Relocation is to the entry for this symbol in the | |
| 14222 | procedure linkage table. */ | |
| 14223 | ||
| 14224 | /* Resolve a PLT reloc against a local symbol directly, | |
| 14225 | without using the procedure linkage table. */ | |
| 14226 | if (h == NULL) | |
| 14227 | break; | |
| 14228 | ||
| 411e1bfb AM |
14229 | /* It's possible that we didn't make a PLT entry for this |
| 14230 | symbol. This happens when statically linking PIC code, | |
| 14231 | or when using -Bsymbolic. Go find a match if there is a | |
| 14232 | PLT entry. */ | |
| 33e44f2e | 14233 | if (htab->elf.splt != NULL) |
| 65f38f15 | 14234 | { |
| 411e1bfb | 14235 | struct plt_entry *ent; |
| 039b3fef | 14236 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
| a345bc8d AM |
14237 | if (ent->plt.offset != (bfd_vma) -1 |
| 14238 | && ent->addend == orig_rel.r_addend) | |
| 411e1bfb | 14239 | { |
| 33e44f2e AM |
14240 | relocation = (htab->elf.splt->output_section->vma |
| 14241 | + htab->elf.splt->output_offset | |
| 411e1bfb AM |
14242 | + ent->plt.offset); |
| 14243 | unresolved_reloc = FALSE; | |
| a345bc8d | 14244 | break; |
| 411e1bfb | 14245 | } |
| 65f38f15 | 14246 | } |
| 65f38f15 | 14247 | break; |
| 5bd4f169 | 14248 | |
| 0b13192e AM |
14249 | case R_PPC64_TOC: |
| 14250 | /* Relocation value is TOC base. */ | |
| 14251 | relocation = TOCstart; | |
| cf35638d | 14252 | if (r_symndx == STN_UNDEF) |
| 0b13192e | 14253 | relocation += htab->stub_group[input_section->id].toc_off; |
| 8517fae7 AM |
14254 | else if (unresolved_reloc) |
| 14255 | ; | |
| 14256 | else if (sec != NULL && sec->id <= htab->top_id) | |
| 0b13192e AM |
14257 | relocation += htab->stub_group[sec->id].toc_off; |
| 14258 | else | |
| 14259 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14260 | goto dodyn; |
| 0b13192e | 14261 | |
| 5bd4f169 AM |
14262 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14263 | which is the address of the start of the TOC plus 0x8000. | |
| 14264 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14265 | in this order. */ | |
| 65f38f15 AM |
14266 | case R_PPC64_TOC16: |
| 14267 | case R_PPC64_TOC16_LO: | |
| 14268 | case R_PPC64_TOC16_HI: | |
| 14269 | case R_PPC64_TOC16_DS: | |
| 14270 | case R_PPC64_TOC16_LO_DS: | |
| 14271 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 14272 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
| 5bd4f169 AM |
14273 | break; |
| 14274 | ||
| 14275 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14276 | case R_PPC64_SECTOFF: |
| 14277 | case R_PPC64_SECTOFF_LO: | |
| 14278 | case R_PPC64_SECTOFF_HI: | |
| 14279 | case R_PPC64_SECTOFF_DS: | |
| 14280 | case R_PPC64_SECTOFF_LO_DS: | |
| 14281 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14282 | if (sec != NULL) |
| 65f38f15 | 14283 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14284 | break; |
| 14285 | ||
| 25f23106 AM |
14286 | case R_PPC64_REL16: |
| 14287 | case R_PPC64_REL16_LO: | |
| 14288 | case R_PPC64_REL16_HI: | |
| 14289 | case R_PPC64_REL16_HA: | |
| 14290 | break; | |
| 14291 | ||
| 721956f4 AM |
14292 | case R_PPC64_REL14: |
| 14293 | case R_PPC64_REL14_BRNTAKEN: | |
| 14294 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14295 | case R_PPC64_REL24: |
| 14296 | break; | |
| 14297 | ||
| 411e1bfb AM |
14298 | case R_PPC64_TPREL16: |
| 14299 | case R_PPC64_TPREL16_LO: | |
| 14300 | case R_PPC64_TPREL16_HI: | |
| 14301 | case R_PPC64_TPREL16_HA: | |
| 14302 | case R_PPC64_TPREL16_DS: | |
| 14303 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14304 | case R_PPC64_TPREL16_HIGH: |
| 14305 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14306 | case R_PPC64_TPREL16_HIGHER: |
| 14307 | case R_PPC64_TPREL16_HIGHERA: | |
| 14308 | case R_PPC64_TPREL16_HIGHEST: | |
| 14309 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14310 | if (h != NULL |
| 14311 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14312 | && h->elf.dynindx == -1) | |
| 14313 | { | |
| 14314 | /* Make this relocation against an undefined weak symbol | |
| 14315 | resolve to zero. This is really just a tweak, since | |
| 14316 | code using weak externs ought to check that they are | |
| 14317 | defined before using them. */ | |
| 14318 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14319 | ||
| 14320 | insn = bfd_get_32 (output_bfd, p); | |
| 14321 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 14322 | if (insn != 0) | |
| 14323 | bfd_put_32 (output_bfd, insn, p); | |
| 14324 | break; | |
| 14325 | } | |
| 989f9879 AM |
14326 | if (htab->elf.tls_sec != NULL) |
| 14327 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14328 | if (info->shared) |
| 14329 | /* The TPREL16 relocs shouldn't really be used in shared | |
| 14330 | libs as they will result in DT_TEXTREL being set, but | |
| 14331 | support them anyway. */ | |
| 14332 | goto dodyn; | |
| 14333 | break; | |
| 14334 | ||
| 14335 | case R_PPC64_DTPREL16: | |
| 14336 | case R_PPC64_DTPREL16_LO: | |
| 14337 | case R_PPC64_DTPREL16_HI: | |
| 14338 | case R_PPC64_DTPREL16_HA: | |
| 14339 | case R_PPC64_DTPREL16_DS: | |
| 14340 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14341 | case R_PPC64_DTPREL16_HIGH: |
| 14342 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14343 | case R_PPC64_DTPREL16_HIGHER: |
| 14344 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14345 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14346 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14347 | if (htab->elf.tls_sec != NULL) |
| 14348 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14349 | break; |
| 14350 | ||
| 45965137 AM |
14351 | case R_PPC64_ADDR64_LOCAL: |
| 14352 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14353 | ? h->elf.other | |
| 14354 | : sym->st_other); | |
| 14355 | break; | |
| 14356 | ||
| e515b051 AM |
14357 | case R_PPC64_DTPMOD64: |
| 14358 | relocation = 1; | |
| 14359 | addend = 0; | |
| 14360 | goto dodyn; | |
| 14361 | ||
| 411e1bfb | 14362 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14363 | if (htab->elf.tls_sec != NULL) |
| 14364 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14365 | goto dodyn; |
| 14366 | ||
| 14367 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14368 | if (htab->elf.tls_sec != NULL) |
| 14369 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14370 | /* Fall thru */ |
| 14371 | ||
| 65f38f15 AM |
14372 | /* Relocations that may need to be propagated if this is a |
| 14373 | dynamic object. */ | |
| 04c9666a | 14374 | case R_PPC64_REL30: |
| 65f38f15 AM |
14375 | case R_PPC64_REL32: |
| 14376 | case R_PPC64_REL64: | |
| 14377 | case R_PPC64_ADDR14: | |
| 14378 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14379 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14380 | case R_PPC64_ADDR16: | |
| 14381 | case R_PPC64_ADDR16_DS: | |
| 14382 | case R_PPC64_ADDR16_HA: | |
| 14383 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14384 | case R_PPC64_ADDR16_HIGH: |
| 14385 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14386 | case R_PPC64_ADDR16_HIGHER: |
| 14387 | case R_PPC64_ADDR16_HIGHERA: | |
| 14388 | case R_PPC64_ADDR16_HIGHEST: | |
| 14389 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14390 | case R_PPC64_ADDR16_LO: | |
| 14391 | case R_PPC64_ADDR16_LO_DS: | |
| 14392 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14393 | case R_PPC64_ADDR32: |
| 14394 | case R_PPC64_ADDR64: | |
| 14395 | case R_PPC64_UADDR16: | |
| 14396 | case R_PPC64_UADDR32: | |
| 14397 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14398 | dodyn: |
| 5d1634d7 | 14399 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14400 | break; |
| 14401 | ||
| 41bd81ab AM |
14402 | if (NO_OPD_RELOCS && is_opd) |
| 14403 | break; | |
| 14404 | ||
| 65f38f15 | 14405 | if ((info->shared |
| 4e795f50 | 14406 | && (h == NULL |
| 039b3fef AM |
14407 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 14408 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 14409 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 14410 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 AM |
14411 | || (ELIMINATE_COPY_RELOCS |
| 14412 | && !info->shared | |
| 65f38f15 | 14413 | && h != NULL |
| 039b3fef | 14414 | && h->elf.dynindx != -1 |
| f5385ebf | 14415 | && !h->elf.non_got_ref |
| 25f23106 AM |
14416 | && !h->elf.def_regular) |
| 14417 | || (!info->shared | |
| 14418 | && (h != NULL | |
| 14419 | ? h->elf.type == STT_GNU_IFUNC | |
| 14420 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 14421 | { |
| b34976b6 | 14422 | bfd_boolean skip, relocate; |
| 65f38f15 | 14423 | asection *sreloc; |
| 1cf1f670 | 14424 | bfd_vma out_off; |
| 65f38f15 AM |
14425 | |
| 14426 | /* When generating a dynamic object, these relocations | |
| 14427 | are copied into the output file to be resolved at run | |
| 14428 | time. */ | |
| 14429 | ||
| b34976b6 AM |
14430 | skip = FALSE; |
| 14431 | relocate = FALSE; | |
| 65f38f15 | 14432 | |
| 1cf1f670 AM |
14433 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14434 | input_section, rel->r_offset); | |
| 14435 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14436 | skip = TRUE; |
| 1cf1f670 | 14437 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14438 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14439 | out_off += (input_section->output_section->vma |
| 14440 | + input_section->output_offset); | |
| 14441 | outrel.r_offset = out_off; | |
| 411e1bfb | 14442 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14443 | |
| 1cf1f670 AM |
14444 | /* Optimize unaligned reloc use. */ |
| 14445 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14446 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14447 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14448 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14449 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14450 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14451 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14452 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14453 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14454 | ||
| 65f38f15 | 14455 | if (skip) |
| 0bb2d96a | 14456 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14457 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14458 | && !is_opd |
| 14459 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14460 | { |
| 14461 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14462 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14463 | } | |
| 65f38f15 AM |
14464 | else |
| 14465 | { | |
| 41bd81ab AM |
14466 | /* This symbol is local, or marked to become local, |
| 14467 | or this is an opd section reloc which must point | |
| 14468 | at a local function. */ | |
| 65f38f15 | 14469 | outrel.r_addend += relocation; |
| e86ce104 | 14470 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14471 | { |
| 3fad3c7c | 14472 | if (is_opd && h != NULL) |
| afbe61cf AM |
14473 | { |
| 14474 | /* Lie about opd entries. This case occurs | |
| 14475 | when building shared libraries and we | |
| 14476 | reference a function in another shared | |
| 3fad3c7c AM |
14477 | lib. The same thing happens for a weak |
| 14478 | definition in an application that's | |
| 14479 | overridden by a strong definition in a | |
| 14480 | shared lib. (I believe this is a generic | |
| 14481 | bug in binutils handling of weak syms.) | |
| 14482 | In these cases we won't use the opd | |
| 1e2f5b6e | 14483 | entry in this lib. */ |
| b34976b6 | 14484 | unresolved_reloc = FALSE; |
| afbe61cf | 14485 | } |
| 25f23106 AM |
14486 | if (!is_opd |
| 14487 | && r_type == R_PPC64_ADDR64 | |
| 14488 | && (h != NULL | |
| 14489 | ? h->elf.type == STT_GNU_IFUNC | |
| 14490 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14491 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14492 | else | |
| 14493 | { | |
| 14494 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14495 | |
| 25f23106 AM |
14496 | /* We need to relocate .opd contents for ld.so. |
| 14497 | Prelink also wants simple and consistent rules | |
| 14498 | for relocs. This make all RELATIVE relocs have | |
| 14499 | *r_offset equal to r_addend. */ | |
| 14500 | relocate = TRUE; | |
| 14501 | } | |
| 65f38f15 AM |
14502 | } |
| 14503 | else | |
| 14504 | { | |
| 14505 | long indx = 0; | |
| 14506 | ||
| 25f23106 AM |
14507 | if (h != NULL |
| 14508 | ? h->elf.type == STT_GNU_IFUNC | |
| 14509 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14510 | { | |
| 25f53a85 | 14511 | info->callbacks->einfo |
| bc30df16 AM |
14512 | (_("%P: %H: %s for indirect " |
| 14513 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14514 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14515 | ppc64_elf_howto_table[r_type]->name, |
| 14516 | sym_name); | |
| 14517 | ret = FALSE; | |
| 14518 | } | |
| cf35638d | 14519 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14520 | ; |
| 14521 | else if (sec == NULL || sec->owner == NULL) | |
| 14522 | { | |
| 14523 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14524 | return FALSE; |
| 65f38f15 AM |
14525 | } |
| 14526 | else | |
| 14527 | { | |
| 14528 | asection *osec; | |
| 14529 | ||
| 14530 | osec = sec->output_section; | |
| 14531 | indx = elf_section_data (osec)->dynindx; | |
| 14532 | ||
| 74541ad4 AM |
14533 | if (indx == 0) |
| 14534 | { | |
| 14535 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14536 | && htab->elf.data_index_section != NULL) | |
| 14537 | osec = htab->elf.data_index_section; | |
| 14538 | else | |
| 14539 | osec = htab->elf.text_index_section; | |
| 14540 | indx = elf_section_data (osec)->dynindx; | |
| 14541 | } | |
| 14542 | BFD_ASSERT (indx != 0); | |
| 14543 | ||
| 65f38f15 AM |
14544 | /* We are turning this relocation into one |
| 14545 | against a section symbol, so subtract out | |
| 14546 | the output section's address but not the | |
| 14547 | offset of the input section in the output | |
| 14548 | section. */ | |
| 14549 | outrel.r_addend -= osec->vma; | |
| 14550 | } | |
| 14551 | ||
| 14552 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14553 | } | |
| 14554 | } | |
| 14555 | ||
| 14556 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14557 | if (h != NULL |
| 14558 | ? h->elf.type == STT_GNU_IFUNC | |
| 14559 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14560 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14561 | if (sreloc == NULL) |
| 14562 | abort (); | |
| 14563 | ||
| dfbb6ac9 AM |
14564 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14565 | >= sreloc->size) | |
| 14566 | abort (); | |
| 947216bf AM |
14567 | loc = sreloc->contents; |
| 14568 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14569 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14570 | ||
| 14571 | /* If this reloc is against an external symbol, it will | |
| 14572 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14573 | anything now. However, for the sake of prelink ensure |
| 14574 | that the section contents are a known value. */ | |
| 65f38f15 | 14575 | if (! relocate) |
| 81407a69 AM |
14576 | { |
| 14577 | unresolved_reloc = FALSE; | |
| 14578 | /* The value chosen here is quite arbitrary as ld.so | |
| 14579 | ignores section contents except for the special | |
| 14580 | case of .opd where the contents might be accessed | |
| 14581 | before relocation. Choose zero, as that won't | |
| 14582 | cause reloc overflow. */ | |
| 14583 | relocation = 0; | |
| 14584 | addend = 0; | |
| 14585 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14586 | to improve backward compatibility with older | |
| 14587 | versions of ld. */ | |
| 14588 | if (r_type == R_PPC64_ADDR64) | |
| 14589 | addend = outrel.r_addend; | |
| 14590 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14591 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14592 | addend = (input_section->output_section->vma |
| 14593 | + input_section->output_offset | |
| 14594 | + rel->r_offset); | |
| 81407a69 | 14595 | } |
| 65f38f15 | 14596 | } |
| 5bd4f169 AM |
14597 | break; |
| 14598 | ||
| 65f38f15 AM |
14599 | case R_PPC64_COPY: |
| 14600 | case R_PPC64_GLOB_DAT: | |
| 14601 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14602 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14603 | case R_PPC64_RELATIVE: |
| 14604 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14605 | files. */ | |
| ae9a127f | 14606 | /* Fall through. */ |
| 65f38f15 AM |
14607 | |
| 14608 | case R_PPC64_PLTGOT16: | |
| 14609 | case R_PPC64_PLTGOT16_DS: | |
| 14610 | case R_PPC64_PLTGOT16_HA: | |
| 14611 | case R_PPC64_PLTGOT16_HI: | |
| 14612 | case R_PPC64_PLTGOT16_LO: | |
| 14613 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14614 | case R_PPC64_PLTREL32: | |
| 14615 | case R_PPC64_PLTREL64: | |
| 14616 | /* These ones haven't been implemented yet. */ | |
| 14617 | ||
| 25f53a85 | 14618 | info->callbacks->einfo |
| bc30df16 | 14619 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14620 | input_bfd, |
| 4ce794b7 | 14621 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14622 | |
| 14623 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14624 | ret = FALSE; |
| 5bd4f169 | 14625 | continue; |
| 65f38f15 | 14626 | } |
| 5bd4f169 | 14627 | |
| 67f0cbdb AM |
14628 | /* Multi-instruction sequences that access the TOC can be |
| 14629 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14630 | to nop; addi rb,r2,x; */ | |
| 14631 | switch (r_type) | |
| 14632 | { | |
| 14633 | default: | |
| 14634 | break; | |
| 14635 | ||
| 14636 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14637 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14638 | case R_PPC64_GOT_TPREL16_HI: | |
| 14639 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14640 | case R_PPC64_GOT16_HI: | |
| 14641 | case R_PPC64_TOC16_HI: | |
| 14642 | /* These relocs would only be useful if building up an | |
| 14643 | offset to later add to r2, perhaps in an indexed | |
| 14644 | addressing mode instruction. Don't try to optimize. | |
| 14645 | Unfortunately, the possibility of someone building up an | |
| 14646 | offset like this or even with the HA relocs, means that | |
| 14647 | we need to check the high insn when optimizing the low | |
| 14648 | insn. */ | |
| 14649 | break; | |
| 14650 | ||
| 14651 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14652 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14653 | case R_PPC64_GOT_TPREL16_HA: | |
| 14654 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14655 | case R_PPC64_GOT16_HA: | |
| 14656 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14657 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14658 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14659 | { |
| 14660 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14661 | bfd_put_32 (input_bfd, NOP, p); | |
| 14662 | } | |
| 67f0cbdb AM |
14663 | break; |
| 14664 | ||
| 14665 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14666 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14667 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14668 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14669 | case R_PPC64_GOT16_LO: | |
| 14670 | case R_PPC64_GOT16_LO_DS: | |
| 14671 | case R_PPC64_TOC16_LO: | |
| 14672 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14673 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14674 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14675 | { |
| 14676 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14677 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14678 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14679 | { | |
| 14680 | /* Transform addic to addi when we change reg. */ | |
| 14681 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14682 | insn |= (14u << 26) | (2 << 16); | |
| 14683 | } | |
| 14684 | else | |
| 67f0cbdb | 14685 | { |
| 98528052 AM |
14686 | insn &= ~(0x1f << 16); |
| 14687 | insn |= 2 << 16; | |
| 67f0cbdb | 14688 | } |
| 560c8763 | 14689 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14690 | } |
| 14691 | break; | |
| 14692 | } | |
| 14693 | ||
| 65f38f15 | 14694 | /* Do any further special processing. */ |
| b80eed39 | 14695 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
14696 | switch (r_type) |
| 14697 | { | |
| 14698 | default: | |
| 14699 | break; | |
| 14700 | ||
| 25f23106 | 14701 | case R_PPC64_REL16_HA: |
| f9c6b907 AM |
14702 | case R_PPC64_ADDR16_HA: |
| 14703 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14704 | case R_PPC64_ADDR16_HIGHERA: |
| 14705 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14706 | case R_PPC64_TOC16_HA: |
| 14707 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14708 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14709 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14710 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14711 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14712 | case R_PPC64_DTPREL16_HA: |
| 14713 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14714 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14715 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14716 | /* It's just possible that this symbol is a weak symbol |
| 14717 | that's not actually defined anywhere. In that case, | |
| 14718 | 'sec' would be NULL, and we should leave the symbol | |
| 14719 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14720 | if (sec == NULL) |
| 14721 | break; | |
| 14722 | /* Fall thru */ | |
| 14723 | ||
| 14724 | case R_PPC64_GOT16_HA: | |
| 14725 | case R_PPC64_PLTGOT16_HA: | |
| 14726 | case R_PPC64_PLT16_HA: | |
| 14727 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14728 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14729 | case R_PPC64_GOT_TPREL16_HA: | |
| 14730 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14731 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 14732 | Bits 0:15 are not used. */ | |
| 14733 | addend += 0x8000; | |
| 65f38f15 AM |
14734 | break; |
| 14735 | ||
| 14736 | case R_PPC64_ADDR16_DS: | |
| 14737 | case R_PPC64_ADDR16_LO_DS: | |
| 14738 | case R_PPC64_GOT16_DS: | |
| 14739 | case R_PPC64_GOT16_LO_DS: | |
| 14740 | case R_PPC64_PLT16_LO_DS: | |
| 14741 | case R_PPC64_SECTOFF_DS: | |
| 14742 | case R_PPC64_SECTOFF_LO_DS: | |
| 14743 | case R_PPC64_TOC16_DS: | |
| 14744 | case R_PPC64_TOC16_LO_DS: | |
| 14745 | case R_PPC64_PLTGOT16_DS: | |
| 14746 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
14747 | case R_PPC64_GOT_TPREL16_DS: |
| 14748 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14749 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14750 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14751 | case R_PPC64_TPREL16_DS: | |
| 14752 | case R_PPC64_TPREL16_LO_DS: | |
| 14753 | case R_PPC64_DTPREL16_DS: | |
| 14754 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
14755 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 14756 | mask = 3; | |
| 14757 | /* If this reloc is against an lq insn, then the value must be | |
| 14758 | a multiple of 16. This is somewhat of a hack, but the | |
| 14759 | "correct" way to do this by defining _DQ forms of all the | |
| 14760 | _DS relocs bloats all reloc switches in this file. It | |
| 14761 | doesn't seem to make much sense to use any of these relocs | |
| 14762 | in data, so testing the insn should be safe. */ | |
| 494dac0c | 14763 | if ((insn & (0x3f << 26)) == (56u << 26)) |
| adadcc0c AM |
14764 | mask = 15; |
| 14765 | if (((relocation + addend) & mask) != 0) | |
| 65f38f15 | 14766 | { |
| 25f53a85 | 14767 | info->callbacks->einfo |
| 8de848d8 | 14768 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 14769 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14770 | howto->name, |
| adadcc0c | 14771 | mask + 1); |
| 65f38f15 | 14772 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14773 | ret = FALSE; |
| 65f38f15 AM |
14774 | continue; |
| 14775 | } | |
| 14776 | break; | |
| 5bd4f169 AM |
14777 | } |
| 14778 | ||
| 239e1f3a AM |
14779 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 14780 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 14781 | not process them. */ | |
| 65f38f15 | 14782 | if (unresolved_reloc |
| 239e1f3a | 14783 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
14784 | && h->elf.def_dynamic) |
| 14785 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 14786 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 14787 | { |
| 25f53a85 | 14788 | info->callbacks->einfo |
| bc30df16 | 14789 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 14790 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14791 | howto->name, |
| 039b3fef | 14792 | h->elf.root.root.string); |
| b34976b6 | 14793 | ret = FALSE; |
| 9c07fe7c | 14794 | } |
| 5bd4f169 | 14795 | |
| b80eed39 AM |
14796 | /* 16-bit fields in insns mostly have signed values, but a |
| 14797 | few insns have 16-bit unsigned values. Really, we should | |
| 14798 | have different reloc types. */ | |
| 14799 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 14800 | && howto->dst_mask == 0xffff | |
| 14801 | && (input_section->flags & SEC_CODE) != 0) | |
| 14802 | { | |
| 14803 | enum complain_overflow complain = complain_overflow_signed; | |
| 14804 | ||
| 14805 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
14806 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 14807 | complain = complain_overflow_bitfield; | |
| 14808 | else if (howto->rightshift == 0 | |
| 14809 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 14810 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 14811 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 14812 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 14813 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 14814 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
14815 | complain = complain_overflow_unsigned; |
| 14816 | if (howto->complain_on_overflow != complain) | |
| 14817 | { | |
| 14818 | alt_howto = *howto; | |
| 14819 | alt_howto.complain_on_overflow = complain; | |
| 14820 | howto = &alt_howto; | |
| 14821 | } | |
| 14822 | } | |
| 14823 | ||
| 14824 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 14825 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 14826 | |
| ef60b7ff | 14827 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 14828 | { |
| bc30df16 | 14829 | char *more_info = NULL; |
| b80eed39 | 14830 | const char *reloc_name = howto->name; |
| bc30df16 AM |
14831 | |
| 14832 | if (reloc_dest != DEST_NORMAL) | |
| 14833 | { | |
| 14834 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 14835 | if (more_info != NULL) | |
| 14836 | { | |
| 14837 | strcpy (more_info, reloc_name); | |
| 14838 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 14839 | ? " (OPD)" : " (stub)")); | |
| 14840 | reloc_name = more_info; | |
| 14841 | } | |
| 14842 | } | |
| 14843 | ||
| cd27b276 | 14844 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 14845 | { |
| 8131c122 AM |
14846 | /* On code like "if (foo) foo();" don't report overflow |
| 14847 | on a branch to zero when foo is undefined. */ | |
| 14848 | if (!warned | |
| 14849 | && (reloc_dest == DEST_STUB | |
| 14850 | || !(h != NULL | |
| 14851 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 14852 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 14853 | && is_branch_reloc (r_type)))) | |
| 5bd4f169 | 14854 | { |
| 8131c122 AM |
14855 | if (!((*info->callbacks->reloc_overflow) |
| 14856 | (info, &h->elf.root, sym_name, | |
| 14857 | reloc_name, orig_rel.r_addend, | |
| 14858 | input_bfd, input_section, rel->r_offset))) | |
| 14859 | return FALSE; | |
| 5bd4f169 | 14860 | } |
| ef60b7ff AM |
14861 | } |
| 14862 | else | |
| 14863 | { | |
| 25f53a85 | 14864 | info->callbacks->einfo |
| bc30df16 | 14865 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 14866 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 14867 | reloc_name, sym_name, (int) r); |
| b34976b6 | 14868 | ret = FALSE; |
| ef60b7ff | 14869 | } |
| bc30df16 AM |
14870 | if (more_info != NULL) |
| 14871 | free (more_info); | |
| 5bd4f169 | 14872 | } |
| 5bd4f169 AM |
14873 | } |
| 14874 | ||
| 645ea6a9 AM |
14875 | /* If we're emitting relocations, then shortly after this function |
| 14876 | returns, reloc offsets and addends for this section will be | |
| 14877 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
14878 | file rather than the input. Save a copy of the relocs for |
| 14879 | opd_entry_value. */ | |
| 4cc603a5 | 14880 | if (is_opd && (info->emitrelocations || info->relocatable)) |
| 8860955f AM |
14881 | { |
| 14882 | bfd_size_type amt; | |
| 14883 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 14884 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
14885 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 14886 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
14887 | if (rel == NULL) |
| 14888 | return FALSE; | |
| 14889 | memcpy (rel, relocs, amt); | |
| 14890 | } | |
| 5bd4f169 AM |
14891 | return ret; |
| 14892 | } | |
| 14893 | ||
| 754021d0 AM |
14894 | /* Adjust the value of any local symbols in opd sections. */ |
| 14895 | ||
| 6e0b88f1 | 14896 | static int |
| 754021d0 AM |
14897 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 14898 | const char *name ATTRIBUTE_UNUSED, | |
| 14899 | Elf_Internal_Sym *elfsym, | |
| 14900 | asection *input_sec, | |
| 14901 | struct elf_link_hash_entry *h) | |
| 14902 | { | |
| 74f0fb50 AM |
14903 | struct _opd_sec_data *opd; |
| 14904 | long adjust; | |
| 754021d0 AM |
14905 | bfd_vma value; |
| 14906 | ||
| 4025353c | 14907 | if (h != NULL) |
| 6e0b88f1 | 14908 | return 1; |
| 4025353c | 14909 | |
| 74f0fb50 AM |
14910 | opd = get_opd_info (input_sec); |
| 14911 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 14912 | return 1; |
| 754021d0 AM |
14913 | |
| 14914 | value = elfsym->st_value - input_sec->output_offset; | |
| 14915 | if (!info->relocatable) | |
| 14916 | value -= input_sec->output_section->vma; | |
| 14917 | ||
| 51aecdc5 | 14918 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 14919 | if (adjust == -1) |
| 6e0b88f1 AM |
14920 | return 2; |
| 14921 | ||
| 14922 | elfsym->st_value += adjust; | |
| 14923 | return 1; | |
| 754021d0 AM |
14924 | } |
| 14925 | ||
| 5bd4f169 AM |
14926 | /* Finish up dynamic symbol handling. We set the contents of various |
| 14927 | dynamic sections here. */ | |
| 14928 | ||
| b34976b6 | 14929 | static bfd_boolean |
| 4ce794b7 AM |
14930 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 14931 | struct bfd_link_info *info, | |
| 14932 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 14933 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 14934 | { |
| 65f38f15 | 14935 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
14936 | struct plt_entry *ent; |
| 14937 | Elf_Internal_Rela rela; | |
| 14938 | bfd_byte *loc; | |
| 5bd4f169 | 14939 | |
| 65f38f15 | 14940 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
14941 | if (htab == NULL) |
| 14942 | return FALSE; | |
| 5bd4f169 | 14943 | |
| 8387904d AM |
14944 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 14945 | if (ent->plt.offset != (bfd_vma) -1) | |
| 14946 | { | |
| 14947 | /* This symbol has an entry in the procedure linkage | |
| 14948 | table. Set it up. */ | |
| e054468f AM |
14949 | if (!htab->elf.dynamic_sections_created |
| 14950 | || h->dynindx == -1) | |
| 14951 | { | |
| 14952 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 14953 | && h->def_regular | |
| 14954 | && (h->root.type == bfd_link_hash_defined | |
| 14955 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
14956 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 14957 | + htab->elf.iplt->output_offset | |
| 25f23106 | 14958 | + ent->plt.offset); |
| ee67d69a AM |
14959 | if (htab->opd_abi) |
| 14960 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 14961 | else | |
| 14962 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
14963 | rela.r_addend = (h->root.u.def.value |
| 14964 | + h->root.u.def.section->output_offset | |
| 14965 | + h->root.u.def.section->output_section->vma | |
| 14966 | + ent->addend); | |
| 33e44f2e AM |
14967 | loc = (htab->elf.irelplt->contents |
| 14968 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 14969 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
14970 | } |
| 14971 | else | |
| 14972 | { | |
| 33e44f2e AM |
14973 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 14974 | + htab->elf.splt->output_offset | |
| 25f23106 | 14975 | + ent->plt.offset); |
| e054468f AM |
14976 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 14977 | rela.r_addend = ent->addend; | |
| 33e44f2e | 14978 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
14979 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 14980 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 14981 | } |
| 8387904d | 14982 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
14983 | |
| 14984 | if (!htab->opd_abi) | |
| 14985 | { | |
| 14986 | if (!h->def_regular) | |
| 14987 | { | |
| 14988 | /* Mark the symbol as undefined, rather than as | |
| 14989 | defined in glink. Leave the value if there were | |
| 14990 | any relocations where pointer equality matters | |
| 14991 | (this is a clue for the dynamic linker, to make | |
| 14992 | function pointer comparisons work between an | |
| 14993 | application and shared library), otherwise set it | |
| 14994 | to zero. */ | |
| 14995 | sym->st_shndx = SHN_UNDEF; | |
| 14996 | if (!h->pointer_equality_needed) | |
| 14997 | sym->st_value = 0; | |
| 14998 | else if (!h->ref_regular_nonweak) | |
| 14999 | { | |
| 15000 | /* This breaks function pointer comparisons, but | |
| 15001 | that is better than breaking tests for a NULL | |
| 15002 | function pointer. */ | |
| 15003 | sym->st_value = 0; | |
| 15004 | } | |
| 15005 | } | |
| 15006 | } | |
| 8387904d | 15007 | } |
| 5bd4f169 | 15008 | |
| f5385ebf | 15009 | if (h->needs_copy) |
| 5bd4f169 | 15010 | { |
| 65f38f15 | 15011 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15012 | |
| 65f38f15 AM |
15013 | if (h->dynindx == -1 |
| 15014 | || (h->root.type != bfd_link_hash_defined | |
| 15015 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15016 | || htab->relbss == NULL) |
| 65f38f15 | 15017 | abort (); |
| 5bd4f169 AM |
15018 | |
| 15019 | rela.r_offset = (h->root.u.def.value | |
| 15020 | + h->root.u.def.section->output_section->vma | |
| 15021 | + h->root.u.def.section->output_offset); | |
| 15022 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15023 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15024 | loc = htab->relbss->contents; |
| 15025 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15026 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15027 | } |
| 15028 | ||
| b34976b6 | 15029 | return TRUE; |
| 5bd4f169 AM |
15030 | } |
| 15031 | ||
| 65f38f15 AM |
15032 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15033 | dynamic linker, before writing them out. */ | |
| 15034 | ||
| 15035 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15036 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15037 | const asection *rel_sec, | |
| 15038 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15039 | { |
| 04c9666a | 15040 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15041 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15042 | ||
| 33e44f2e | 15043 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15044 | return reloc_class_ifunc; |
| a33d1f77 | 15045 | |
| 4ce794b7 | 15046 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15047 | switch (r_type) |
| 65f38f15 AM |
15048 | { |
| 15049 | case R_PPC64_RELATIVE: | |
| 15050 | return reloc_class_relative; | |
| 15051 | case R_PPC64_JMP_SLOT: | |
| 15052 | return reloc_class_plt; | |
| 15053 | case R_PPC64_COPY: | |
| 15054 | return reloc_class_copy; | |
| 15055 | default: | |
| 15056 | return reloc_class_normal; | |
| 15057 | } | |
| 15058 | } | |
| 15059 | ||
| 5bd4f169 AM |
15060 | /* Finish up the dynamic sections. */ |
| 15061 | ||
| b34976b6 | 15062 | static bfd_boolean |
| 4ce794b7 AM |
15063 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15064 | struct bfd_link_info *info) | |
| 5bd4f169 | 15065 | { |
| 65f38f15 AM |
15066 | struct ppc_link_hash_table *htab; |
| 15067 | bfd *dynobj; | |
| 5bd4f169 | 15068 | asection *sdyn; |
| 5bd4f169 | 15069 | |
| 65f38f15 | 15070 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15071 | if (htab == NULL) |
| 15072 | return FALSE; | |
| 15073 | ||
| 65f38f15 | 15074 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15075 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15076 | |
| 65f38f15 | 15077 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15078 | { |
| 5bd4f169 AM |
15079 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15080 | ||
| 33e44f2e | 15081 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15082 | abort (); |
| 5bd4f169 AM |
15083 | |
| 15084 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15085 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15086 | for (; dyncon < dynconend; dyncon++) |
| 15087 | { | |
| 15088 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15089 | asection *s; |
| 5bd4f169 AM |
15090 | |
| 15091 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15092 | ||
| 15093 | switch (dyn.d_tag) | |
| 15094 | { | |
| 65f38f15 AM |
15095 | default: |
| 15096 | continue; | |
| 5bd4f169 | 15097 | |
| 5d1634d7 | 15098 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15099 | s = htab->glink; |
| 6348e046 | 15100 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15101 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15102 | of glink rather than the first entry point, which is | |
| 15103 | what ld.so needs, and now have a bigger stub to | |
| 15104 | support automatic multiple TOCs. */ | |
| b9e5796b | 15105 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15106 | break; |
| 15107 | ||
| 19397422 AM |
15108 | case DT_PPC64_OPD: |
| 15109 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15110 | if (s == NULL) |
| 15111 | continue; | |
| 15112 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15113 | break; |
| 15114 | ||
| e8910a83 AM |
15115 | case DT_PPC64_OPT: |
| 15116 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15117 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15118 | break; | |
| 15119 | ||
| 19397422 AM |
15120 | case DT_PPC64_OPDSZ: |
| 15121 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15122 | if (s == NULL) |
| 15123 | continue; | |
| eea6121a | 15124 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15125 | break; |
| 15126 | ||
| 65f38f15 | 15127 | case DT_PLTGOT: |
| 33e44f2e | 15128 | s = htab->elf.splt; |
| 6348e046 | 15129 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15130 | break; |
| 15131 | ||
| 15132 | case DT_JMPREL: | |
| 33e44f2e | 15133 | s = htab->elf.srelplt; |
| 6348e046 | 15134 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15135 | break; |
| 5bd4f169 | 15136 | |
| 65f38f15 | 15137 | case DT_PLTRELSZ: |
| 33e44f2e | 15138 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 AM |
15139 | break; |
| 15140 | ||
| 15141 | case DT_RELASZ: | |
| 15142 | /* Don't count procedure linkage table relocs in the | |
| 15143 | overall reloc count. */ | |
| 33e44f2e | 15144 | s = htab->elf.srelplt; |
| 6348e046 AM |
15145 | if (s == NULL) |
| 15146 | continue; | |
| eea6121a | 15147 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
15148 | break; |
| 15149 | ||
| 15150 | case DT_RELA: | |
| 15151 | /* We may not be using the standard ELF linker script. | |
| 15152 | If .rela.plt is the first .rela section, we adjust | |
| 15153 | DT_RELA to not include it. */ | |
| 33e44f2e | 15154 | s = htab->elf.srelplt; |
| 6348e046 AM |
15155 | if (s == NULL) |
| 15156 | continue; | |
| 15157 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 15158 | continue; | |
| eea6121a | 15159 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 15160 | break; |
| 5bd4f169 | 15161 | } |
| 5bd4f169 | 15162 | |
| 65f38f15 | 15163 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15164 | } |
| 5bd4f169 AM |
15165 | } |
| 15166 | ||
| 33e44f2e | 15167 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15168 | { |
| 15169 | /* Fill in the first entry in the global offset table. | |
| 15170 | We use it to hold the link-time TOCbase. */ | |
| 15171 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15172 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15173 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15174 | |
| 15175 | /* Set .got entry size. */ | |
| 33e44f2e | 15176 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15177 | } |
| 15178 | ||
| 33e44f2e | 15179 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15180 | { |
| 15181 | /* Set .plt entry size. */ | |
| 33e44f2e | 15182 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15183 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15184 | } |
| 15185 | ||
| 84f5d08e AM |
15186 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15187 | brlt ourselves if emitrelocations. */ | |
| 15188 | if (htab->brlt != NULL | |
| 15189 | && htab->brlt->reloc_count != 0 | |
| 15190 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15191 | htab->brlt, | |
| d4730f92 | 15192 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15193 | elf_section_data (htab->brlt)->relocs, |
| 15194 | NULL)) | |
| 15195 | return FALSE; | |
| 15196 | ||
| 176a0d42 AM |
15197 | if (htab->glink != NULL |
| 15198 | && htab->glink->reloc_count != 0 | |
| 15199 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15200 | htab->glink, | |
| d4730f92 | 15201 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15202 | elf_section_data (htab->glink)->relocs, |
| 15203 | NULL)) | |
| 15204 | return FALSE; | |
| 15205 | ||
| 58d180e8 | 15206 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15207 | && htab->glink_eh_frame->size != 0) |
| 15208 | { | |
| 15209 | bfd_vma val; | |
| 15210 | bfd_byte *p; | |
| 15211 | asection *stub_sec; | |
| 15212 | ||
| 15213 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15214 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15215 | stub_sec != NULL; | |
| 15216 | stub_sec = stub_sec->next) | |
| 15217 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15218 | { | |
| 15219 | /* FDE length. */ | |
| 15220 | p += 4; | |
| 15221 | /* CIE pointer. */ | |
| 15222 | p += 4; | |
| 15223 | /* Offset to stub section. */ | |
| 15224 | val = (stub_sec->output_section->vma | |
| 15225 | + stub_sec->output_offset); | |
| 15226 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15227 | + htab->glink_eh_frame->output_offset | |
| 15228 | + (p - htab->glink_eh_frame->contents)); | |
| 15229 | if (val + 0x80000000 > 0xffffffff) | |
| 15230 | { | |
| 15231 | info->callbacks->einfo | |
| 15232 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15233 | stub_sec->name); | |
| 15234 | return FALSE; | |
| 15235 | } | |
| 15236 | bfd_put_32 (dynobj, val, p); | |
| 15237 | p += 4; | |
| 15238 | /* stub section size. */ | |
| 15239 | p += 4; | |
| 15240 | /* Augmentation. */ | |
| 15241 | p += 1; | |
| 15242 | /* Pad. */ | |
| 15243 | p += 7; | |
| 15244 | } | |
| 15245 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15246 | { | |
| 15247 | /* FDE length. */ | |
| 15248 | p += 4; | |
| 15249 | /* CIE pointer. */ | |
| 15250 | p += 4; | |
| 15251 | /* Offset to .glink. */ | |
| 15252 | val = (htab->glink->output_section->vma | |
| 15253 | + htab->glink->output_offset | |
| 15254 | + 8); | |
| 15255 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15256 | + htab->glink_eh_frame->output_offset | |
| 15257 | + (p - htab->glink_eh_frame->contents)); | |
| 15258 | if (val + 0x80000000 > 0xffffffff) | |
| 15259 | { | |
| 15260 | info->callbacks->einfo | |
| 15261 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15262 | htab->glink->name); | |
| 15263 | return FALSE; | |
| 15264 | } | |
| 15265 | bfd_put_32 (dynobj, val, p); | |
| 15266 | p += 4; | |
| 15267 | /* .glink size. */ | |
| 15268 | p += 4; | |
| 15269 | /* Augmentation. */ | |
| 15270 | p += 1; | |
| 15271 | /* Ops. */ | |
| 15272 | p += 7; | |
| 15273 | } | |
| 15274 | ||
| 15275 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15276 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15277 | htab->glink_eh_frame, | |
| 15278 | htab->glink_eh_frame->contents)) | |
| 15279 | return FALSE; | |
| 15280 | } | |
| 58d180e8 | 15281 | |
| e717da7e | 15282 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15283 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15284 | bfd. */ | |
| c72f2fb2 | 15285 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15286 | { |
| 15287 | asection *s; | |
| 7b53ace3 | 15288 | |
| 0c8d6e5c | 15289 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15290 | continue; |
| 15291 | ||
| e717da7e AM |
15292 | s = ppc64_elf_tdata (dynobj)->got; |
| 15293 | if (s != NULL | |
| eea6121a | 15294 | && s->size != 0 |
| e717da7e AM |
15295 | && s->output_section != bfd_abs_section_ptr |
| 15296 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15297 | s->contents, s->output_offset, | |
| eea6121a | 15298 | s->size)) |
| e717da7e AM |
15299 | return FALSE; |
| 15300 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15301 | if (s != NULL | |
| eea6121a | 15302 | && s->size != 0 |
| e717da7e AM |
15303 | && s->output_section != bfd_abs_section_ptr |
| 15304 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15305 | s->contents, s->output_offset, | |
| eea6121a | 15306 | s->size)) |
| e717da7e AM |
15307 | return FALSE; |
| 15308 | } | |
| f6c52c13 | 15309 | |
| b34976b6 | 15310 | return TRUE; |
| 5bd4f169 AM |
15311 | } |
| 15312 | ||
| 5bd4f169 | 15313 | #include "elf64-target.h" |
| 7b8e7dad AM |
15314 | |
| 15315 | /* FreeBSD support */ | |
| 15316 | ||
| 15317 | #undef TARGET_LITTLE_SYM | |
| 15318 | #undef TARGET_LITTLE_NAME | |
| 15319 | ||
| 15320 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15321 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15322 | #undef TARGET_BIG_NAME |
| 15323 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15324 | ||
| 15325 | #undef ELF_OSABI | |
| 15326 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15327 | ||
| 15328 | #undef elf64_bed | |
| 15329 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15330 | ||
| 15331 | #include "elf64-target.h" | |
| 15332 |