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 | 240 | |
| a4b6fadd AM |
241 | #ifndef ARRAY_SIZE |
| 242 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 243 | #endif | |
| 244 | ||
| 810d4e75 AM |
245 | static inline int |
| 246 | abiversion (bfd *abfd) | |
| 247 | { | |
| 248 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 249 | } | |
| 250 | ||
| 251 | static inline void | |
| 252 | set_abiversion (bfd *abfd, int ver) | |
| 253 | { | |
| 254 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 255 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 256 | } | |
| 5bd4f169 | 257 | \f |
| f5e87a1d | 258 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 259 | |
| 5bd4f169 | 260 | /* Relocation HOWTO's. */ |
| 04c9666a | 261 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
262 | |
| 263 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 264 | /* This reloc does nothing. */ | |
| 265 | HOWTO (R_PPC64_NONE, /* type */ | |
| 266 | 0, /* rightshift */ | |
| 6346d5ca AM |
267 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 268 | 0, /* bitsize */ | |
| b34976b6 | 269 | FALSE, /* pc_relative */ |
| 5bd4f169 | 270 | 0, /* bitpos */ |
| f5e87a1d | 271 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
272 | bfd_elf_generic_reloc, /* special_function */ |
| 273 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 274 | FALSE, /* partial_inplace */ |
| d006db6c | 275 | 0, /* src_mask */ |
| 5bd4f169 | 276 | 0, /* dst_mask */ |
| b34976b6 | 277 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
278 | |
| 279 | /* A standard 32 bit relocation. */ | |
| 280 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 281 | 0, /* rightshift */ | |
| 282 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 283 | 32, /* bitsize */ | |
| b34976b6 | 284 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
285 | 0, /* bitpos */ |
| 286 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 287 | bfd_elf_generic_reloc, /* special_function */ | |
| 288 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 289 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
290 | 0, /* src_mask */ |
| 291 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 292 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
293 | |
| 294 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 295 | FIXME: we don't check that, we just clear them. */ | |
| 296 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 297 | 0, /* rightshift */ | |
| 298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 299 | 26, /* bitsize */ | |
| b34976b6 | 300 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
301 | 0, /* bitpos */ |
| 302 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 303 | bfd_elf_generic_reloc, /* special_function */ | |
| 304 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 305 | FALSE, /* partial_inplace */ |
| d006db6c | 306 | 0, /* src_mask */ |
| f5e87a1d | 307 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 308 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
309 | |
| 310 | /* A standard 16 bit relocation. */ | |
| 311 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 312 | 0, /* rightshift */ | |
| 313 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 314 | 16, /* bitsize */ | |
| b34976b6 | 315 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
316 | 0, /* bitpos */ |
| 317 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 318 | bfd_elf_generic_reloc, /* special_function */ | |
| 319 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 320 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
321 | 0, /* src_mask */ |
| 322 | 0xffff, /* dst_mask */ | |
| b34976b6 | 323 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
324 | |
| 325 | /* A 16 bit relocation without overflow. */ | |
| 326 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 327 | 0, /* rightshift */ | |
| 328 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 329 | 16, /* bitsize */ | |
| b34976b6 | 330 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
331 | 0, /* bitpos */ |
| 332 | complain_overflow_dont,/* complain_on_overflow */ | |
| 333 | bfd_elf_generic_reloc, /* special_function */ | |
| 334 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 335 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
336 | 0, /* src_mask */ |
| 337 | 0xffff, /* dst_mask */ | |
| b34976b6 | 338 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
339 | |
| 340 | /* Bits 16-31 of an address. */ | |
| 341 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 342 | 16, /* rightshift */ | |
| 343 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 344 | 16, /* bitsize */ | |
| b34976b6 | 345 | FALSE, /* pc_relative */ |
| 5bd4f169 | 346 | 0, /* bitpos */ |
| f9c6b907 | 347 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
348 | bfd_elf_generic_reloc, /* special_function */ |
| 349 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 350 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
351 | 0, /* src_mask */ |
| 352 | 0xffff, /* dst_mask */ | |
| b34976b6 | 353 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
354 | |
| 355 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 356 | bits, treated as a signed number, is negative. */ | |
| 357 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 358 | 16, /* rightshift */ | |
| 359 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 360 | 16, /* bitsize */ | |
| b34976b6 | 361 | FALSE, /* pc_relative */ |
| 5bd4f169 | 362 | 0, /* bitpos */ |
| f9c6b907 | 363 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 364 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 365 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 366 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
367 | 0, /* src_mask */ |
| 368 | 0xffff, /* dst_mask */ | |
| b34976b6 | 369 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
370 | |
| 371 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 372 | FIXME: we don't check that, we just clear them. */ | |
| 373 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 374 | 0, /* rightshift */ | |
| 375 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 376 | 16, /* bitsize */ | |
| b34976b6 | 377 | FALSE, /* pc_relative */ |
| 5bd4f169 | 378 | 0, /* bitpos */ |
| b80eed39 | 379 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 380 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 381 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 382 | FALSE, /* partial_inplace */ |
| d006db6c | 383 | 0, /* src_mask */ |
| f5e87a1d | 384 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 385 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
386 | |
| 387 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 388 | indicate that the branch is expected to be taken. The lower two | |
| 389 | bits must be zero. */ | |
| 390 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 391 | 0, /* rightshift */ | |
| 392 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 393 | 16, /* bitsize */ | |
| b34976b6 | 394 | FALSE, /* pc_relative */ |
| 5bd4f169 | 395 | 0, /* bitpos */ |
| b80eed39 | 396 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 397 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 398 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 399 | FALSE, /* partial_inplace */ |
| d006db6c | 400 | 0, /* src_mask */ |
| f5e87a1d | 401 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 402 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
403 | |
| 404 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 405 | indicate that the branch is not expected to be taken. The lower | |
| 406 | two bits must be zero. */ | |
| 407 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 408 | 0, /* rightshift */ | |
| 409 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 410 | 16, /* bitsize */ | |
| b34976b6 | 411 | FALSE, /* pc_relative */ |
| 5bd4f169 | 412 | 0, /* bitpos */ |
| b80eed39 | 413 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 414 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 415 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 416 | FALSE, /* partial_inplace */ |
| d006db6c | 417 | 0, /* src_mask */ |
| f5e87a1d | 418 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 419 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
420 | |
| 421 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 422 | HOWTO (R_PPC64_REL24, /* type */ | |
| 423 | 0, /* rightshift */ | |
| 424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 425 | 26, /* bitsize */ | |
| b34976b6 | 426 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
427 | 0, /* bitpos */ |
| 428 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 429 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 430 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 431 | FALSE, /* partial_inplace */ |
| d006db6c | 432 | 0, /* src_mask */ |
| f5e87a1d | 433 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 434 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
435 | |
| 436 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 437 | HOWTO (R_PPC64_REL14, /* type */ | |
| 438 | 0, /* rightshift */ | |
| 439 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 440 | 16, /* bitsize */ | |
| b34976b6 | 441 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
442 | 0, /* bitpos */ |
| 443 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 444 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 445 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 446 | FALSE, /* partial_inplace */ |
| d006db6c | 447 | 0, /* src_mask */ |
| f5e87a1d | 448 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 449 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
450 | |
| 451 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 452 | the branch is expected to be taken. The lower two bits must be | |
| 453 | zero. */ | |
| 454 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 455 | 0, /* rightshift */ | |
| 456 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 457 | 16, /* bitsize */ | |
| b34976b6 | 458 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
459 | 0, /* bitpos */ |
| 460 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 461 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 462 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 463 | FALSE, /* partial_inplace */ |
| d006db6c | 464 | 0, /* src_mask */ |
| f5e87a1d | 465 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 466 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
467 | |
| 468 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 469 | the branch is not expected to be taken. The lower two bits must | |
| 470 | be zero. */ | |
| 471 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 472 | 0, /* rightshift */ | |
| 473 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 474 | 16, /* bitsize */ | |
| b34976b6 | 475 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
476 | 0, /* bitpos */ |
| 477 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 478 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 479 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 480 | FALSE, /* partial_inplace */ |
| d006db6c | 481 | 0, /* src_mask */ |
| f5e87a1d | 482 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 483 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
484 | |
| 485 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 486 | symbol. */ | |
| 487 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 488 | 0, /* rightshift */ | |
| 489 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 490 | 16, /* bitsize */ | |
| b34976b6 | 491 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
492 | 0, /* bitpos */ |
| 493 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 494 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 495 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 496 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
497 | 0, /* src_mask */ |
| 498 | 0xffff, /* dst_mask */ | |
| b34976b6 | 499 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
500 | |
| 501 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 502 | the symbol. */ | |
| 503 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 504 | 0, /* rightshift */ | |
| 505 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 506 | 16, /* bitsize */ | |
| b34976b6 | 507 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
508 | 0, /* bitpos */ |
| 509 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 510 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 511 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 512 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
513 | 0, /* src_mask */ |
| 514 | 0xffff, /* dst_mask */ | |
| b34976b6 | 515 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
516 | |
| 517 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 518 | the symbol. */ | |
| 519 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 520 | 16, /* rightshift */ | |
| 521 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 522 | 16, /* bitsize */ | |
| b34976b6 | 523 | FALSE, /* pc_relative */ |
| 5bd4f169 | 524 | 0, /* bitpos */ |
| f9c6b907 | 525 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 526 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 527 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 528 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
529 | 0, /* src_mask */ |
| 530 | 0xffff, /* dst_mask */ | |
| b34976b6 | 531 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
532 | |
| 533 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 534 | the symbol. */ | |
| 535 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 536 | 16, /* rightshift */ | |
| 537 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 538 | 16, /* bitsize */ | |
| b34976b6 | 539 | FALSE, /* pc_relative */ |
| 5bd4f169 | 540 | 0, /* bitpos */ |
| f9c6b907 | 541 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 542 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 543 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 544 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
545 | 0, /* src_mask */ |
| 546 | 0xffff, /* dst_mask */ | |
| b34976b6 | 547 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
548 | |
| 549 | /* This is used only by the dynamic linker. The symbol should exist | |
| 550 | both in the object being run and in some shared library. The | |
| 551 | dynamic linker copies the data addressed by the symbol from the | |
| 552 | shared library into the object, because the object being | |
| 553 | run has to have the data at some particular address. */ | |
| 554 | HOWTO (R_PPC64_COPY, /* type */ | |
| 555 | 0, /* rightshift */ | |
| f5e87a1d AM |
556 | 0, /* this one is variable size */ |
| 557 | 0, /* bitsize */ | |
| b34976b6 | 558 | FALSE, /* pc_relative */ |
| 5bd4f169 | 559 | 0, /* bitpos */ |
| f5e87a1d AM |
560 | complain_overflow_dont, /* complain_on_overflow */ |
| 561 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 562 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 563 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
564 | 0, /* src_mask */ |
| 565 | 0, /* dst_mask */ | |
| b34976b6 | 566 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
567 | |
| 568 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 569 | entries. */ | |
| 570 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 571 | 0, /* rightshift */ | |
| 572 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 573 | 64, /* bitsize */ | |
| b34976b6 | 574 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
575 | 0, /* bitpos */ |
| 576 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 577 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 578 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 579 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 580 | 0, /* src_mask */ |
| f5e87a1d | 581 | ONES (64), /* dst_mask */ |
| b34976b6 | 582 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
583 | |
| 584 | /* Created by the link editor. Marks a procedure linkage table | |
| 585 | entry for a symbol. */ | |
| 586 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 587 | 0, /* rightshift */ | |
| 588 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 589 | 0, /* bitsize */ | |
| b34976b6 | 590 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
591 | 0, /* bitpos */ |
| 592 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 593 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 594 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 595 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
596 | 0, /* src_mask */ |
| 597 | 0, /* dst_mask */ | |
| b34976b6 | 598 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
599 | |
| 600 | /* Used only by the dynamic linker. When the object is run, this | |
| 601 | doubleword64 is set to the load address of the object, plus the | |
| 602 | addend. */ | |
| 603 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 604 | 0, /* rightshift */ | |
| 605 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 606 | 64, /* bitsize */ | |
| b34976b6 | 607 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
608 | 0, /* bitpos */ |
| 609 | complain_overflow_dont, /* complain_on_overflow */ | |
| 610 | bfd_elf_generic_reloc, /* special_function */ | |
| 611 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 612 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 613 | 0, /* src_mask */ |
| f5e87a1d | 614 | ONES (64), /* dst_mask */ |
| b34976b6 | 615 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
616 | |
| 617 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 618 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 619 | 0, /* rightshift */ | |
| 620 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 621 | 32, /* bitsize */ | |
| b34976b6 | 622 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
623 | 0, /* bitpos */ |
| 624 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 625 | bfd_elf_generic_reloc, /* special_function */ | |
| 626 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 627 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
628 | 0, /* src_mask */ |
| 629 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 630 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
631 | |
| 632 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 633 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 634 | 0, /* rightshift */ | |
| 635 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 636 | 16, /* bitsize */ | |
| b34976b6 | 637 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
638 | 0, /* bitpos */ |
| 639 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 640 | bfd_elf_generic_reloc, /* special_function */ | |
| 641 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 642 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
643 | 0, /* src_mask */ |
| 644 | 0xffff, /* dst_mask */ | |
| b34976b6 | 645 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
646 | |
| 647 | /* 32-bit PC relative. */ | |
| 648 | HOWTO (R_PPC64_REL32, /* type */ | |
| 649 | 0, /* rightshift */ | |
| 650 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 651 | 32, /* bitsize */ | |
| b34976b6 | 652 | TRUE, /* pc_relative */ |
| 5bd4f169 | 653 | 0, /* bitpos */ |
| 5bd4f169 AM |
654 | complain_overflow_signed, /* complain_on_overflow */ |
| 655 | bfd_elf_generic_reloc, /* special_function */ | |
| 656 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 657 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
658 | 0, /* src_mask */ |
| 659 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 660 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 661 | |
| 10ed1bba | 662 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
663 | HOWTO (R_PPC64_PLT32, /* type */ |
| 664 | 0, /* rightshift */ | |
| 665 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 666 | 32, /* bitsize */ | |
| b34976b6 | 667 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
668 | 0, /* bitpos */ |
| 669 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 670 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 671 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 672 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 673 | 0, /* src_mask */ |
| f5e87a1d | 674 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 675 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
676 | |
| 677 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 678 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 679 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 680 | 0, /* rightshift */ | |
| 681 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 682 | 32, /* bitsize */ | |
| b34976b6 | 683 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
684 | 0, /* bitpos */ |
| 685 | complain_overflow_signed, /* complain_on_overflow */ | |
| 686 | bfd_elf_generic_reloc, /* special_function */ | |
| 687 | "R_PPC64_PLTREL32", /* name */ | |
| b34976b6 | 688 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 689 | 0, /* src_mask */ |
| f5e87a1d | 690 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 691 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
692 | |
| 693 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 694 | the symbol. */ | |
| 695 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 696 | 0, /* rightshift */ | |
| 697 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 698 | 16, /* bitsize */ | |
| b34976b6 | 699 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
700 | 0, /* bitpos */ |
| 701 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 702 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 703 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 704 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
705 | 0, /* src_mask */ |
| 706 | 0xffff, /* dst_mask */ | |
| b34976b6 | 707 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
708 | |
| 709 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 710 | the symbol. */ | |
| 711 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 712 | 16, /* rightshift */ | |
| 713 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 714 | 16, /* bitsize */ | |
| b34976b6 | 715 | FALSE, /* pc_relative */ |
| 5bd4f169 | 716 | 0, /* bitpos */ |
| f9c6b907 | 717 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 718 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 719 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 720 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
721 | 0, /* src_mask */ |
| 722 | 0xffff, /* dst_mask */ | |
| b34976b6 | 723 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
724 | |
| 725 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 726 | the symbol. */ | |
| 727 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 728 | 16, /* rightshift */ | |
| 729 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 730 | 16, /* bitsize */ | |
| b34976b6 | 731 | FALSE, /* pc_relative */ |
| 5bd4f169 | 732 | 0, /* bitpos */ |
| f9c6b907 | 733 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 734 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 735 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 736 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
737 | 0, /* src_mask */ |
| 738 | 0xffff, /* dst_mask */ | |
| b34976b6 | 739 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 740 | |
| c061c2d8 | 741 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
742 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 743 | 0, /* rightshift */ | |
| c061c2d8 AM |
744 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 745 | 16, /* bitsize */ | |
| b34976b6 | 746 | FALSE, /* pc_relative */ |
| 5bd4f169 | 747 | 0, /* bitpos */ |
| b80eed39 | 748 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 749 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 750 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 751 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 752 | 0, /* src_mask */ |
| c061c2d8 | 753 | 0xffff, /* dst_mask */ |
| b34976b6 | 754 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 755 | |
| c061c2d8 | 756 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
757 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 758 | 0, /* rightshift */ | |
| 759 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 760 | 16, /* bitsize */ | |
| b34976b6 | 761 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
762 | 0, /* bitpos */ |
| 763 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 764 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 765 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 766 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
767 | 0, /* src_mask */ |
| 768 | 0xffff, /* dst_mask */ | |
| b34976b6 | 769 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
770 | |
| 771 | /* 16-bit upper half section relative relocation. */ | |
| 772 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 773 | 16, /* rightshift */ | |
| 774 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 775 | 16, /* bitsize */ | |
| b34976b6 | 776 | FALSE, /* pc_relative */ |
| 5bd4f169 | 777 | 0, /* bitpos */ |
| f9c6b907 | 778 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 779 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 780 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 781 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
782 | 0, /* src_mask */ |
| 783 | 0xffff, /* dst_mask */ | |
| b34976b6 | 784 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
785 | |
| 786 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 787 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 788 | 16, /* rightshift */ | |
| 789 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 790 | 16, /* bitsize */ | |
| b34976b6 | 791 | FALSE, /* pc_relative */ |
| 5bd4f169 | 792 | 0, /* bitpos */ |
| f9c6b907 | 793 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 794 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 795 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 796 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
797 | 0, /* src_mask */ |
| 798 | 0xffff, /* dst_mask */ | |
| b34976b6 | 799 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 800 | |
| 04c9666a AM |
801 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 802 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
803 | 2, /* rightshift */ |
| 804 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 805 | 30, /* bitsize */ | |
| b34976b6 | 806 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
807 | 0, /* bitpos */ |
| 808 | complain_overflow_dont, /* complain_on_overflow */ | |
| 809 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 810 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 811 | FALSE, /* partial_inplace */ |
| d006db6c | 812 | 0, /* src_mask */ |
| 5bd4f169 | 813 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 814 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
815 | |
| 816 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 817 | ||
| 818 | /* A standard 64-bit relocation. */ | |
| 819 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 820 | 0, /* rightshift */ | |
| 821 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 822 | 64, /* bitsize */ | |
| b34976b6 | 823 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
824 | 0, /* bitpos */ |
| 825 | complain_overflow_dont, /* complain_on_overflow */ | |
| 826 | bfd_elf_generic_reloc, /* special_function */ | |
| 827 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 828 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 829 | 0, /* src_mask */ |
| f5e87a1d | 830 | ONES (64), /* dst_mask */ |
| b34976b6 | 831 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
832 | |
| 833 | /* The bits 32-47 of an address. */ | |
| 834 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 835 | 32, /* rightshift */ | |
| 836 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 837 | 16, /* bitsize */ | |
| b34976b6 | 838 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
839 | 0, /* bitpos */ |
| 840 | complain_overflow_dont, /* complain_on_overflow */ | |
| 841 | bfd_elf_generic_reloc, /* special_function */ | |
| 842 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 843 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
844 | 0, /* src_mask */ |
| 845 | 0xffff, /* dst_mask */ | |
| b34976b6 | 846 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
847 | |
| 848 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 849 | 16 bits, treated as a signed number, is negative. */ | |
| 850 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 851 | 32, /* rightshift */ | |
| 852 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 853 | 16, /* bitsize */ | |
| b34976b6 | 854 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
855 | 0, /* bitpos */ |
| 856 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 857 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 858 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 859 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
860 | 0, /* src_mask */ |
| 861 | 0xffff, /* dst_mask */ | |
| b34976b6 | 862 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
863 | |
| 864 | /* The bits 48-63 of an address. */ | |
| 865 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 866 | 48, /* rightshift */ | |
| 867 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 868 | 16, /* bitsize */ | |
| b34976b6 | 869 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
870 | 0, /* bitpos */ |
| 871 | complain_overflow_dont, /* complain_on_overflow */ | |
| 872 | bfd_elf_generic_reloc, /* special_function */ | |
| 873 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 874 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
875 | 0, /* src_mask */ |
| 876 | 0xffff, /* dst_mask */ | |
| b34976b6 | 877 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
878 | |
| 879 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 880 | 16 bits, treated as a signed number, is negative. */ | |
| 881 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 882 | 48, /* rightshift */ | |
| 883 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 884 | 16, /* bitsize */ | |
| b34976b6 | 885 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
886 | 0, /* bitpos */ |
| 887 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 888 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 889 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 890 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
891 | 0, /* src_mask */ |
| 892 | 0xffff, /* dst_mask */ | |
| b34976b6 | 893 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
894 | |
| 895 | /* Like ADDR64, but may be unaligned. */ | |
| 896 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 897 | 0, /* rightshift */ | |
| 898 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 899 | 64, /* bitsize */ | |
| b34976b6 | 900 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
901 | 0, /* bitpos */ |
| 902 | complain_overflow_dont, /* complain_on_overflow */ | |
| 903 | bfd_elf_generic_reloc, /* special_function */ | |
| 904 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 905 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 906 | 0, /* src_mask */ |
| f5e87a1d | 907 | ONES (64), /* dst_mask */ |
| b34976b6 | 908 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
909 | |
| 910 | /* 64-bit relative relocation. */ | |
| 911 | HOWTO (R_PPC64_REL64, /* type */ | |
| 912 | 0, /* rightshift */ | |
| 913 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 914 | 64, /* bitsize */ | |
| b34976b6 | 915 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
916 | 0, /* bitpos */ |
| 917 | complain_overflow_dont, /* complain_on_overflow */ | |
| 918 | bfd_elf_generic_reloc, /* special_function */ | |
| 919 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 920 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 921 | 0, /* src_mask */ |
| f5e87a1d | 922 | ONES (64), /* dst_mask */ |
| b34976b6 | 923 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 924 | |
| cedb70c5 | 925 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
926 | HOWTO (R_PPC64_PLT64, /* type */ |
| 927 | 0, /* rightshift */ | |
| 928 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 929 | 64, /* bitsize */ | |
| b34976b6 | 930 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
931 | 0, /* bitpos */ |
| 932 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 933 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 934 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 935 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 936 | 0, /* src_mask */ |
| f5e87a1d | 937 | ONES (64), /* dst_mask */ |
| b34976b6 | 938 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
939 | |
| 940 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 941 | table. */ | |
| 942 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 943 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 944 | 0, /* rightshift */ | |
| 945 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 946 | 64, /* bitsize */ | |
| b34976b6 | 947 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
948 | 0, /* bitpos */ |
| 949 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 950 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 951 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 952 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 953 | 0, /* src_mask */ |
| f5e87a1d | 954 | ONES (64), /* dst_mask */ |
| b34976b6 | 955 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
956 | |
| 957 | /* 16 bit TOC-relative relocation. */ | |
| 958 | ||
| 959 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 960 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 961 | 0, /* rightshift */ | |
| 962 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 963 | 16, /* bitsize */ | |
| b34976b6 | 964 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
965 | 0, /* bitpos */ |
| 966 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 967 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 968 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 969 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
970 | 0, /* src_mask */ |
| 971 | 0xffff, /* dst_mask */ | |
| b34976b6 | 972 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
973 | |
| 974 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 975 | ||
| 976 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 977 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 978 | 0, /* rightshift */ | |
| 979 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 980 | 16, /* bitsize */ | |
| b34976b6 | 981 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
982 | 0, /* bitpos */ |
| 983 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 984 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 985 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 986 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
987 | 0, /* src_mask */ |
| 988 | 0xffff, /* dst_mask */ | |
| b34976b6 | 989 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
990 | |
| 991 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 992 | ||
| 993 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 994 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 995 | 16, /* rightshift */ | |
| 996 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 997 | 16, /* bitsize */ | |
| b34976b6 | 998 | FALSE, /* pc_relative */ |
| 5bd4f169 | 999 | 0, /* bitpos */ |
| f9c6b907 | 1000 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1001 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1002 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1003 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1004 | 0, /* src_mask */ |
| 1005 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1006 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1007 | |
| 1008 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1009 | contents of the low 16 bits, treated as a signed number, is | |
| 1010 | negative. */ | |
| 1011 | ||
| 1012 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1013 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1014 | 16, /* rightshift */ | |
| 1015 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1016 | 16, /* bitsize */ | |
| b34976b6 | 1017 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1018 | 0, /* bitpos */ |
| f9c6b907 | 1019 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1020 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1021 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1022 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1023 | 0, /* src_mask */ |
| 1024 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1025 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1026 | |
| 1027 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1028 | ||
| 1029 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1030 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1031 | 0, /* rightshift */ | |
| 1032 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1033 | 64, /* bitsize */ | |
| b34976b6 | 1034 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1035 | 0, /* bitpos */ |
| b80eed39 | 1036 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1037 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1038 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1039 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1040 | 0, /* src_mask */ |
| f5e87a1d | 1041 | ONES (64), /* dst_mask */ |
| b34976b6 | 1042 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1043 | |
| 1044 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1045 | value to relocate may (!) refer to a PLT entry which the link | |
| 1046 | editor (a) may replace with the symbol value. If the link editor | |
| 1047 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1048 | entry and store the address to the new PLT entry in the GOT. | |
| 1049 | This permits lazy resolution of function symbols at run time. | |
| 1050 | The link editor may also skip all of this and just (c) emit a | |
| 1051 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1052 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1053 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1054 | 0, /* rightshift */ | |
| 1055 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1056 | 16, /* bitsize */ | |
| b34976b6 | 1057 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1058 | 0, /* bitpos */ |
| 1059 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1060 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1061 | "R_PPC64_PLTGOT16", /* name */ |
| 1062 | FALSE, /* partial_inplace */ | |
| 1063 | 0, /* src_mask */ | |
| 1064 | 0xffff, /* dst_mask */ | |
| 1065 | FALSE), /* pcrel_offset */ | |
| 1066 | ||
| 1067 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1068 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1069 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1070 | 0, /* rightshift */ | |
| 1071 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1072 | 16, /* bitsize */ | |
| 1073 | FALSE, /* pc_relative */ | |
| 1074 | 0, /* bitpos */ | |
| 1075 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1076 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1077 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1078 | FALSE, /* partial_inplace */ | |
| 1079 | 0, /* src_mask */ | |
| 1080 | 0xffff, /* dst_mask */ | |
| 1081 | FALSE), /* pcrel_offset */ | |
| 1082 | ||
| 1083 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1084 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1085 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1086 | 16, /* rightshift */ | |
| 1087 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1088 | 16, /* bitsize */ | |
| 1089 | FALSE, /* pc_relative */ | |
| 1090 | 0, /* bitpos */ | |
| f9c6b907 | 1091 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1092 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1093 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1094 | FALSE, /* partial_inplace */ | |
| 1095 | 0, /* src_mask */ | |
| 1096 | 0xffff, /* dst_mask */ | |
| 1097 | FALSE), /* pcrel_offset */ | |
| 1098 | ||
| 1099 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1100 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1101 | is negative. */ | |
| 1102 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1103 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1104 | 16, /* rightshift */ | |
| 1105 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1106 | 16, /* bitsize */ | |
| 1107 | FALSE, /* pc_relative */ | |
| 1108 | 0, /* bitpos */ | |
| f9c6b907 | 1109 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1110 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1111 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1112 | FALSE, /* partial_inplace */ | |
| 1113 | 0, /* src_mask */ | |
| 1114 | 0xffff, /* dst_mask */ | |
| 1115 | FALSE), /* pcrel_offset */ | |
| 1116 | ||
| 1117 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1118 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1119 | 0, /* rightshift */ | |
| 1120 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1121 | 16, /* bitsize */ | |
| 1122 | FALSE, /* pc_relative */ | |
| 1123 | 0, /* bitpos */ | |
| b80eed39 | 1124 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1125 | bfd_elf_generic_reloc, /* special_function */ |
| 1126 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1127 | FALSE, /* partial_inplace */ | |
| 1128 | 0, /* src_mask */ | |
| 1129 | 0xfffc, /* dst_mask */ | |
| 1130 | FALSE), /* pcrel_offset */ | |
| 1131 | ||
| 1132 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1133 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1134 | 0, /* rightshift */ | |
| 1135 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1136 | 16, /* bitsize */ | |
| 1137 | FALSE, /* pc_relative */ | |
| 1138 | 0, /* bitpos */ | |
| 1139 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1140 | bfd_elf_generic_reloc, /* special_function */ | |
| 1141 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1142 | FALSE, /* partial_inplace */ | |
| 1143 | 0, /* src_mask */ | |
| 1144 | 0xfffc, /* dst_mask */ | |
| 1145 | FALSE), /* pcrel_offset */ | |
| 1146 | ||
| 1147 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1148 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1149 | 0, /* rightshift */ | |
| 1150 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1151 | 16, /* bitsize */ | |
| 1152 | FALSE, /* pc_relative */ | |
| 1153 | 0, /* bitpos */ | |
| 1154 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1155 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1156 | "R_PPC64_GOT16_DS", /* name */ | |
| 1157 | FALSE, /* partial_inplace */ | |
| 1158 | 0, /* src_mask */ | |
| 1159 | 0xfffc, /* dst_mask */ | |
| 1160 | FALSE), /* pcrel_offset */ | |
| 1161 | ||
| 1162 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1163 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1164 | 0, /* rightshift */ | |
| 1165 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1166 | 16, /* bitsize */ | |
| 1167 | FALSE, /* pc_relative */ | |
| 1168 | 0, /* bitpos */ | |
| 1169 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1170 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1171 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1172 | FALSE, /* partial_inplace */ | |
| 1173 | 0, /* src_mask */ | |
| 1174 | 0xfffc, /* dst_mask */ | |
| 1175 | FALSE), /* pcrel_offset */ | |
| 1176 | ||
| 1177 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1178 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1179 | 0, /* rightshift */ | |
| 1180 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1181 | 16, /* bitsize */ | |
| 1182 | FALSE, /* pc_relative */ | |
| 1183 | 0, /* bitpos */ | |
| 1184 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1185 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1186 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1187 | FALSE, /* partial_inplace */ | |
| 1188 | 0, /* src_mask */ | |
| 1189 | 0xfffc, /* dst_mask */ | |
| 1190 | FALSE), /* pcrel_offset */ | |
| 1191 | ||
| 1192 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1193 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1194 | 0, /* rightshift */ | |
| 1195 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1196 | 16, /* bitsize */ | |
| 1197 | FALSE, /* pc_relative */ | |
| 1198 | 0, /* bitpos */ | |
| b80eed39 | 1199 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1200 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1201 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1202 | FALSE, /* partial_inplace */ | |
| 1203 | 0, /* src_mask */ | |
| 1204 | 0xfffc, /* dst_mask */ | |
| 1205 | FALSE), /* pcrel_offset */ | |
| 1206 | ||
| 1207 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1208 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1209 | 0, /* rightshift */ | |
| 1210 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1211 | 16, /* bitsize */ | |
| 1212 | FALSE, /* pc_relative */ | |
| 1213 | 0, /* bitpos */ | |
| 1214 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1215 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1216 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1217 | FALSE, /* partial_inplace */ | |
| 1218 | 0, /* src_mask */ | |
| 1219 | 0xfffc, /* dst_mask */ | |
| 1220 | FALSE), /* pcrel_offset */ | |
| 1221 | ||
| 1222 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1223 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1224 | 0, /* rightshift */ | |
| 1225 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1226 | 16, /* bitsize */ | |
| 1227 | FALSE, /* pc_relative */ | |
| 1228 | 0, /* bitpos */ | |
| 1229 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1230 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1231 | "R_PPC64_TOC16_DS", /* name */ | |
| 1232 | FALSE, /* partial_inplace */ | |
| 1233 | 0, /* src_mask */ | |
| 1234 | 0xfffc, /* dst_mask */ | |
| 1235 | FALSE), /* pcrel_offset */ | |
| 1236 | ||
| 1237 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1238 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1239 | 0, /* rightshift */ | |
| 1240 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1241 | 16, /* bitsize */ | |
| 1242 | FALSE, /* pc_relative */ | |
| 1243 | 0, /* bitpos */ | |
| 1244 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1245 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1246 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1247 | FALSE, /* partial_inplace */ | |
| 1248 | 0, /* src_mask */ | |
| 1249 | 0xfffc, /* dst_mask */ | |
| 1250 | FALSE), /* pcrel_offset */ | |
| 1251 | ||
| 1252 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1253 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1254 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1255 | 0, /* rightshift */ |
| 1256 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1257 | 16, /* bitsize */ | |
| 1258 | FALSE, /* pc_relative */ | |
| 1259 | 0, /* bitpos */ | |
| 1260 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1261 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1262 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1263 | FALSE, /* partial_inplace */ | |
| 1264 | 0, /* src_mask */ | |
| 1265 | 0xfffc, /* dst_mask */ | |
| 1266 | FALSE), /* pcrel_offset */ | |
| 1267 | ||
| 1268 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1269 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1270 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1271 | 0, /* rightshift */ | |
| 1272 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1273 | 16, /* bitsize */ | |
| 1274 | FALSE, /* pc_relative */ | |
| 1275 | 0, /* bitpos */ | |
| 1276 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1277 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1278 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1279 | FALSE, /* partial_inplace */ | |
| 1280 | 0, /* src_mask */ | |
| 1281 | 0xfffc, /* dst_mask */ | |
| 1282 | FALSE), /* pcrel_offset */ | |
| 1283 | ||
| 727fc41e | 1284 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1285 | HOWTO (R_PPC64_TLS, |
| 1286 | 0, /* rightshift */ | |
| 1287 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1288 | 32, /* bitsize */ | |
| 1289 | FALSE, /* pc_relative */ | |
| 1290 | 0, /* bitpos */ | |
| 1291 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1292 | bfd_elf_generic_reloc, /* special_function */ | |
| 1293 | "R_PPC64_TLS", /* name */ | |
| 1294 | FALSE, /* partial_inplace */ | |
| 1295 | 0, /* src_mask */ | |
| 1296 | 0, /* dst_mask */ | |
| 1297 | FALSE), /* pcrel_offset */ | |
| 1298 | ||
| 727fc41e AM |
1299 | HOWTO (R_PPC64_TLSGD, |
| 1300 | 0, /* rightshift */ | |
| 1301 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1302 | 32, /* bitsize */ | |
| 1303 | FALSE, /* pc_relative */ | |
| 1304 | 0, /* bitpos */ | |
| 1305 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1306 | bfd_elf_generic_reloc, /* special_function */ | |
| 1307 | "R_PPC64_TLSGD", /* name */ | |
| 1308 | FALSE, /* partial_inplace */ | |
| 1309 | 0, /* src_mask */ | |
| 1310 | 0, /* dst_mask */ | |
| 1311 | FALSE), /* pcrel_offset */ | |
| 1312 | ||
| 1313 | HOWTO (R_PPC64_TLSLD, | |
| 1314 | 0, /* rightshift */ | |
| 1315 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1316 | 32, /* bitsize */ | |
| 1317 | FALSE, /* pc_relative */ | |
| 1318 | 0, /* bitpos */ | |
| 1319 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1320 | bfd_elf_generic_reloc, /* special_function */ | |
| 1321 | "R_PPC64_TLSLD", /* name */ | |
| 1322 | FALSE, /* partial_inplace */ | |
| 1323 | 0, /* src_mask */ | |
| 1324 | 0, /* dst_mask */ | |
| 1325 | FALSE), /* pcrel_offset */ | |
| 1326 | ||
| 3b421ab3 AM |
1327 | HOWTO (R_PPC64_TOCSAVE, |
| 1328 | 0, /* rightshift */ | |
| 1329 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1330 | 32, /* bitsize */ | |
| 1331 | FALSE, /* pc_relative */ | |
| 1332 | 0, /* bitpos */ | |
| 1333 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1334 | bfd_elf_generic_reloc, /* special_function */ | |
| 1335 | "R_PPC64_TOCSAVE", /* name */ | |
| 1336 | FALSE, /* partial_inplace */ | |
| 1337 | 0, /* src_mask */ | |
| 1338 | 0, /* dst_mask */ | |
| 1339 | FALSE), /* pcrel_offset */ | |
| 1340 | ||
| 411e1bfb AM |
1341 | /* Computes the load module index of the load module that contains the |
| 1342 | definition of its TLS sym. */ | |
| 1343 | HOWTO (R_PPC64_DTPMOD64, | |
| 1344 | 0, /* rightshift */ | |
| 1345 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1346 | 64, /* bitsize */ | |
| 1347 | FALSE, /* pc_relative */ | |
| 1348 | 0, /* bitpos */ | |
| 1349 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1350 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1351 | "R_PPC64_DTPMOD64", /* name */ | |
| 1352 | FALSE, /* partial_inplace */ | |
| 1353 | 0, /* src_mask */ | |
| 1354 | ONES (64), /* dst_mask */ | |
| 1355 | FALSE), /* pcrel_offset */ | |
| 1356 | ||
| 1357 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1358 | of sym+add and the base address of the thread-local storage block that | |
| 1359 | contains the definition of sym, minus 0x8000. */ | |
| 1360 | HOWTO (R_PPC64_DTPREL64, | |
| 1361 | 0, /* rightshift */ | |
| 1362 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1363 | 64, /* bitsize */ | |
| 1364 | FALSE, /* pc_relative */ | |
| 1365 | 0, /* bitpos */ | |
| 1366 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1367 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1368 | "R_PPC64_DTPREL64", /* name */ | |
| 1369 | FALSE, /* partial_inplace */ | |
| 1370 | 0, /* src_mask */ | |
| 1371 | ONES (64), /* dst_mask */ | |
| 1372 | FALSE), /* pcrel_offset */ | |
| 1373 | ||
| 1374 | /* A 16 bit dtprel reloc. */ | |
| 1375 | HOWTO (R_PPC64_DTPREL16, | |
| 1376 | 0, /* rightshift */ | |
| 1377 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1378 | 16, /* bitsize */ | |
| 1379 | FALSE, /* pc_relative */ | |
| 1380 | 0, /* bitpos */ | |
| 1381 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1382 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1383 | "R_PPC64_DTPREL16", /* name */ | |
| 1384 | FALSE, /* partial_inplace */ | |
| 1385 | 0, /* src_mask */ | |
| 1386 | 0xffff, /* dst_mask */ | |
| 1387 | FALSE), /* pcrel_offset */ | |
| 1388 | ||
| 1389 | /* Like DTPREL16, but no overflow. */ | |
| 1390 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1391 | 0, /* rightshift */ | |
| 1392 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1393 | 16, /* bitsize */ | |
| 1394 | FALSE, /* pc_relative */ | |
| 1395 | 0, /* bitpos */ | |
| 1396 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1397 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1398 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1399 | FALSE, /* partial_inplace */ | |
| 1400 | 0, /* src_mask */ | |
| 1401 | 0xffff, /* dst_mask */ | |
| 1402 | FALSE), /* pcrel_offset */ | |
| 1403 | ||
| 1404 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1405 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1406 | 16, /* rightshift */ | |
| 1407 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1408 | 16, /* bitsize */ | |
| 1409 | FALSE, /* pc_relative */ | |
| 1410 | 0, /* bitpos */ | |
| f9c6b907 | 1411 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1412 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1413 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1414 | FALSE, /* partial_inplace */ | |
| 1415 | 0, /* src_mask */ | |
| 1416 | 0xffff, /* dst_mask */ | |
| 1417 | FALSE), /* pcrel_offset */ | |
| 1418 | ||
| 1419 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1420 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1421 | 16, /* rightshift */ | |
| 1422 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1423 | 16, /* bitsize */ | |
| 1424 | FALSE, /* pc_relative */ | |
| 1425 | 0, /* bitpos */ | |
| f9c6b907 | 1426 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1427 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1428 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1429 | FALSE, /* partial_inplace */ | |
| 1430 | 0, /* src_mask */ | |
| 1431 | 0xffff, /* dst_mask */ | |
| 1432 | FALSE), /* pcrel_offset */ | |
| 1433 | ||
| 1434 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1435 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1436 | 32, /* rightshift */ | |
| 1437 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1438 | 16, /* bitsize */ | |
| 1439 | FALSE, /* pc_relative */ | |
| 1440 | 0, /* bitpos */ | |
| 1441 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1442 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1443 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1444 | FALSE, /* partial_inplace */ | |
| 1445 | 0, /* src_mask */ | |
| 1446 | 0xffff, /* dst_mask */ | |
| 1447 | FALSE), /* pcrel_offset */ | |
| 1448 | ||
| 1449 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1450 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1451 | 32, /* rightshift */ | |
| 1452 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1453 | 16, /* bitsize */ | |
| 1454 | FALSE, /* pc_relative */ | |
| 1455 | 0, /* bitpos */ | |
| 1456 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1457 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1458 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1459 | FALSE, /* partial_inplace */ | |
| 1460 | 0, /* src_mask */ | |
| 1461 | 0xffff, /* dst_mask */ | |
| 1462 | FALSE), /* pcrel_offset */ | |
| 1463 | ||
| 1464 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1465 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1466 | 48, /* rightshift */ | |
| 1467 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1468 | 16, /* bitsize */ | |
| 1469 | FALSE, /* pc_relative */ | |
| 1470 | 0, /* bitpos */ | |
| 1471 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1472 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1473 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1474 | FALSE, /* partial_inplace */ | |
| 1475 | 0, /* src_mask */ | |
| 1476 | 0xffff, /* dst_mask */ | |
| 1477 | FALSE), /* pcrel_offset */ | |
| 1478 | ||
| 1479 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1480 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1481 | 48, /* rightshift */ | |
| 1482 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1483 | 16, /* bitsize */ | |
| 1484 | FALSE, /* pc_relative */ | |
| 1485 | 0, /* bitpos */ | |
| 1486 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1487 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1488 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1489 | FALSE, /* partial_inplace */ | |
| 1490 | 0, /* src_mask */ | |
| 1491 | 0xffff, /* dst_mask */ | |
| 1492 | FALSE), /* pcrel_offset */ | |
| 1493 | ||
| 1494 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1495 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1496 | 0, /* rightshift */ | |
| 1497 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1498 | 16, /* bitsize */ | |
| 1499 | FALSE, /* pc_relative */ | |
| 1500 | 0, /* bitpos */ | |
| 1501 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1502 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1503 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1504 | FALSE, /* partial_inplace */ | |
| 1505 | 0, /* src_mask */ | |
| 1506 | 0xfffc, /* dst_mask */ | |
| 1507 | FALSE), /* pcrel_offset */ | |
| 1508 | ||
| 1509 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1510 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1511 | 0, /* rightshift */ | |
| 1512 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1513 | 16, /* bitsize */ | |
| 1514 | FALSE, /* pc_relative */ | |
| 1515 | 0, /* bitpos */ | |
| 1516 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1517 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1518 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1519 | FALSE, /* partial_inplace */ | |
| 1520 | 0, /* src_mask */ | |
| 1521 | 0xfffc, /* dst_mask */ | |
| 1522 | FALSE), /* pcrel_offset */ | |
| 1523 | ||
| 1524 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1525 | sym+add and the value of the thread pointer (r13). */ | |
| 1526 | HOWTO (R_PPC64_TPREL64, | |
| 1527 | 0, /* rightshift */ | |
| 1528 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1529 | 64, /* bitsize */ | |
| 1530 | FALSE, /* pc_relative */ | |
| 1531 | 0, /* bitpos */ | |
| 1532 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1533 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1534 | "R_PPC64_TPREL64", /* name */ | |
| 1535 | FALSE, /* partial_inplace */ | |
| 1536 | 0, /* src_mask */ | |
| 1537 | ONES (64), /* dst_mask */ | |
| 1538 | FALSE), /* pcrel_offset */ | |
| 1539 | ||
| 1540 | /* A 16 bit tprel reloc. */ | |
| 1541 | HOWTO (R_PPC64_TPREL16, | |
| 1542 | 0, /* rightshift */ | |
| 1543 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1544 | 16, /* bitsize */ | |
| 1545 | FALSE, /* pc_relative */ | |
| 1546 | 0, /* bitpos */ | |
| 1547 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1548 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1549 | "R_PPC64_TPREL16", /* name */ | |
| 1550 | FALSE, /* partial_inplace */ | |
| 1551 | 0, /* src_mask */ | |
| 1552 | 0xffff, /* dst_mask */ | |
| 1553 | FALSE), /* pcrel_offset */ | |
| 1554 | ||
| 1555 | /* Like TPREL16, but no overflow. */ | |
| 1556 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1557 | 0, /* rightshift */ | |
| 1558 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1559 | 16, /* bitsize */ | |
| 1560 | FALSE, /* pc_relative */ | |
| 1561 | 0, /* bitpos */ | |
| 1562 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1563 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1564 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1565 | FALSE, /* partial_inplace */ | |
| 1566 | 0, /* src_mask */ | |
| 1567 | 0xffff, /* dst_mask */ | |
| 1568 | FALSE), /* pcrel_offset */ | |
| 1569 | ||
| 1570 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1571 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1572 | 16, /* rightshift */ | |
| 1573 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1574 | 16, /* bitsize */ | |
| 1575 | FALSE, /* pc_relative */ | |
| 1576 | 0, /* bitpos */ | |
| f9c6b907 | 1577 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1578 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1579 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1580 | FALSE, /* partial_inplace */ | |
| 1581 | 0, /* src_mask */ | |
| 1582 | 0xffff, /* dst_mask */ | |
| 1583 | FALSE), /* pcrel_offset */ | |
| 1584 | ||
| 1585 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1586 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1587 | 16, /* rightshift */ | |
| 1588 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1589 | 16, /* bitsize */ | |
| 1590 | FALSE, /* pc_relative */ | |
| 1591 | 0, /* bitpos */ | |
| f9c6b907 | 1592 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1593 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1594 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1595 | FALSE, /* partial_inplace */ | |
| 1596 | 0, /* src_mask */ | |
| 1597 | 0xffff, /* dst_mask */ | |
| 1598 | FALSE), /* pcrel_offset */ | |
| 1599 | ||
| 1600 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1601 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1602 | 32, /* rightshift */ | |
| 1603 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1604 | 16, /* bitsize */ | |
| 1605 | FALSE, /* pc_relative */ | |
| 1606 | 0, /* bitpos */ | |
| 1607 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1608 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1609 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1610 | FALSE, /* partial_inplace */ | |
| 1611 | 0, /* src_mask */ | |
| 1612 | 0xffff, /* dst_mask */ | |
| 1613 | FALSE), /* pcrel_offset */ | |
| 1614 | ||
| 1615 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1616 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1617 | 32, /* rightshift */ | |
| 1618 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1619 | 16, /* bitsize */ | |
| 1620 | FALSE, /* pc_relative */ | |
| 1621 | 0, /* bitpos */ | |
| 1622 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1623 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1624 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1625 | FALSE, /* partial_inplace */ | |
| 1626 | 0, /* src_mask */ | |
| 1627 | 0xffff, /* dst_mask */ | |
| 1628 | FALSE), /* pcrel_offset */ | |
| 1629 | ||
| 1630 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1631 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1632 | 48, /* rightshift */ | |
| 1633 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1634 | 16, /* bitsize */ | |
| 1635 | FALSE, /* pc_relative */ | |
| 1636 | 0, /* bitpos */ | |
| 1637 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1638 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1639 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1640 | FALSE, /* partial_inplace */ | |
| 1641 | 0, /* src_mask */ | |
| 1642 | 0xffff, /* dst_mask */ | |
| 1643 | FALSE), /* pcrel_offset */ | |
| 1644 | ||
| 1645 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1646 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1647 | 48, /* rightshift */ | |
| 1648 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1649 | 16, /* bitsize */ | |
| 1650 | FALSE, /* pc_relative */ | |
| 1651 | 0, /* bitpos */ | |
| 1652 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1653 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1654 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1655 | FALSE, /* partial_inplace */ | |
| 1656 | 0, /* src_mask */ | |
| 1657 | 0xffff, /* dst_mask */ | |
| 1658 | FALSE), /* pcrel_offset */ | |
| 1659 | ||
| 1660 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1661 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1662 | 0, /* rightshift */ | |
| 1663 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1664 | 16, /* bitsize */ | |
| 1665 | FALSE, /* pc_relative */ | |
| 1666 | 0, /* bitpos */ | |
| 1667 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1668 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1669 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1670 | FALSE, /* partial_inplace */ | |
| 1671 | 0, /* src_mask */ | |
| 1672 | 0xfffc, /* dst_mask */ | |
| 1673 | FALSE), /* pcrel_offset */ | |
| 1674 | ||
| 1675 | /* Like TPREL16_DS, but no overflow. */ | |
| 1676 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1677 | 0, /* rightshift */ | |
| 1678 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1679 | 16, /* bitsize */ | |
| 1680 | FALSE, /* pc_relative */ | |
| 1681 | 0, /* bitpos */ | |
| 1682 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1683 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1684 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1685 | FALSE, /* partial_inplace */ | |
| 1686 | 0, /* src_mask */ | |
| 1687 | 0xfffc, /* dst_mask */ | |
| 1688 | FALSE), /* pcrel_offset */ | |
| 1689 | ||
| 1690 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1691 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1692 | to the first entry relative to the TOC base (r2). */ | |
| 1693 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1694 | 0, /* rightshift */ | |
| 1695 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1696 | 16, /* bitsize */ | |
| 1697 | FALSE, /* pc_relative */ | |
| 1698 | 0, /* bitpos */ | |
| 1699 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1700 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1701 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1702 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1703 | 0, /* src_mask */ |
| 1704 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1705 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1706 | |
| 411e1bfb AM |
1707 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1708 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1709 | 0, /* rightshift */ |
| 1710 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1711 | 16, /* bitsize */ | |
| b34976b6 | 1712 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1713 | 0, /* bitpos */ |
| 1714 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1715 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1716 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1717 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1718 | 0, /* src_mask */ |
| 1719 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1720 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1721 | |
| 411e1bfb AM |
1722 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1723 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1724 | 16, /* rightshift */ |
| 1725 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1726 | 16, /* bitsize */ | |
| b34976b6 | 1727 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1728 | 0, /* bitpos */ |
| f9c6b907 | 1729 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1730 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1731 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1732 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1733 | 0, /* src_mask */ |
| 1734 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1735 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1736 | |
| 411e1bfb AM |
1737 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1738 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1739 | 16, /* rightshift */ |
| 1740 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1741 | 16, /* bitsize */ | |
| b34976b6 | 1742 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1743 | 0, /* bitpos */ |
| f9c6b907 | 1744 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1745 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1746 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1747 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1748 | 0, /* src_mask */ |
| 1749 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1750 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1751 | |
| 411e1bfb AM |
1752 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1753 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1754 | first entry relative to the TOC base (r2). */ | |
| 1755 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1756 | 0, /* rightshift */ |
| 1757 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1758 | 16, /* bitsize */ | |
| b34976b6 | 1759 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1760 | 0, /* bitpos */ |
| 411e1bfb AM |
1761 | complain_overflow_signed, /* complain_on_overflow */ |
| 1762 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1763 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1764 | FALSE, /* partial_inplace */ |
| d006db6c | 1765 | 0, /* src_mask */ |
| 411e1bfb | 1766 | 0xffff, /* dst_mask */ |
| b34976b6 | 1767 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1768 | |
| 411e1bfb AM |
1769 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1770 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1771 | 0, /* rightshift */ |
| 1772 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1773 | 16, /* bitsize */ | |
| b34976b6 | 1774 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1775 | 0, /* bitpos */ |
| 411e1bfb AM |
1776 | complain_overflow_dont, /* complain_on_overflow */ |
| 1777 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1778 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1779 | FALSE, /* partial_inplace */ |
| d006db6c | 1780 | 0, /* src_mask */ |
| 411e1bfb | 1781 | 0xffff, /* dst_mask */ |
| b34976b6 | 1782 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1783 | |
| 411e1bfb AM |
1784 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1785 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1786 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1787 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1788 | 16, /* bitsize */ | |
| b34976b6 | 1789 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1790 | 0, /* bitpos */ |
| f9c6b907 | 1791 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1792 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1793 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1794 | FALSE, /* partial_inplace */ |
| d006db6c | 1795 | 0, /* src_mask */ |
| 411e1bfb | 1796 | 0xffff, /* dst_mask */ |
| b34976b6 | 1797 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1798 | |
| 411e1bfb AM |
1799 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1800 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1801 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1802 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1803 | 16, /* bitsize */ | |
| b34976b6 | 1804 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1805 | 0, /* bitpos */ |
| f9c6b907 | 1806 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1807 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1808 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1809 | FALSE, /* partial_inplace */ |
| d006db6c | 1810 | 0, /* src_mask */ |
| 411e1bfb | 1811 | 0xffff, /* dst_mask */ |
| b34976b6 | 1812 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1813 | |
| 411e1bfb AM |
1814 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1815 | the offset to the entry relative to the TOC base (r2). */ | |
| 1816 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1817 | 0, /* rightshift */ |
| 1818 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1819 | 16, /* bitsize */ | |
| b34976b6 | 1820 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1821 | 0, /* bitpos */ |
| 411e1bfb | 1822 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1823 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1824 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1825 | FALSE, /* partial_inplace */ |
| d006db6c | 1826 | 0, /* src_mask */ |
| 5bd4f169 | 1827 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1828 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1829 | |
| 411e1bfb AM |
1830 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1831 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1832 | 0, /* rightshift */ |
| c061c2d8 AM |
1833 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1834 | 16, /* bitsize */ | |
| b34976b6 | 1835 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1836 | 0, /* bitpos */ |
| 411e1bfb AM |
1837 | complain_overflow_dont, /* complain_on_overflow */ |
| 1838 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1839 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1840 | FALSE, /* partial_inplace */ |
| d006db6c | 1841 | 0, /* src_mask */ |
| c061c2d8 | 1842 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1843 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1844 | |
| 411e1bfb AM |
1845 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1846 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1847 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1848 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1849 | 16, /* bitsize */ | |
| b34976b6 | 1850 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1851 | 0, /* bitpos */ |
| f9c6b907 | 1852 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1853 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1854 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1855 | FALSE, /* partial_inplace */ |
| d006db6c | 1856 | 0, /* src_mask */ |
| 411e1bfb | 1857 | 0xffff, /* dst_mask */ |
| b34976b6 | 1858 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1859 | |
| 411e1bfb AM |
1860 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1861 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1862 | 16, /* rightshift */ | |
| 1863 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1864 | 16, /* bitsize */ | |
| 1865 | FALSE, /* pc_relative */ | |
| 1866 | 0, /* bitpos */ | |
| f9c6b907 | 1867 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1868 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1869 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1870 | FALSE, /* partial_inplace */ | |
| 1871 | 0, /* src_mask */ | |
| 1872 | 0xffff, /* dst_mask */ | |
| 1873 | FALSE), /* pcrel_offset */ | |
| 1874 | ||
| 1875 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1876 | offset to the entry relative to the TOC base (r2). */ | |
| 1877 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1878 | 0, /* rightshift */ |
| 1879 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1880 | 16, /* bitsize */ | |
| b34976b6 | 1881 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1882 | 0, /* bitpos */ |
| 1883 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1884 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1885 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1886 | FALSE, /* partial_inplace */ |
| d006db6c | 1887 | 0, /* src_mask */ |
| ad8e1ba5 | 1888 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1889 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1890 | |
| 411e1bfb AM |
1891 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1892 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1893 | 0, /* rightshift */ |
| 1894 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1895 | 16, /* bitsize */ | |
| b34976b6 | 1896 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1897 | 0, /* bitpos */ |
| 1898 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1899 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1900 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1901 | FALSE, /* partial_inplace */ |
| d006db6c | 1902 | 0, /* src_mask */ |
| ad8e1ba5 | 1903 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1904 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1905 | |
| 411e1bfb AM |
1906 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1907 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1908 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1909 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1910 | 16, /* bitsize */ | |
| b34976b6 | 1911 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1912 | 0, /* bitpos */ |
| f9c6b907 | 1913 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1914 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1915 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1916 | FALSE, /* partial_inplace */ |
| d006db6c | 1917 | 0, /* src_mask */ |
| 411e1bfb | 1918 | 0xffff, /* dst_mask */ |
| b34976b6 | 1919 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1920 | |
| 411e1bfb AM |
1921 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1922 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1923 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1924 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1925 | 16, /* bitsize */ | |
| b34976b6 | 1926 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1927 | 0, /* bitpos */ |
| f9c6b907 | 1928 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1929 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1930 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1931 | FALSE, /* partial_inplace */ |
| d006db6c | 1932 | 0, /* src_mask */ |
| 411e1bfb | 1933 | 0xffff, /* dst_mask */ |
| b34976b6 | 1934 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1935 | |
| 25f23106 AM |
1936 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1937 | 0, /* rightshift */ | |
| 1938 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1939 | 0, /* bitsize */ | |
| 1940 | FALSE, /* pc_relative */ | |
| 1941 | 0, /* bitpos */ | |
| 1942 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1943 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1944 | "R_PPC64_JMP_IREL", /* name */ | |
| 1945 | FALSE, /* partial_inplace */ | |
| 1946 | 0, /* src_mask */ | |
| 1947 | 0, /* dst_mask */ | |
| 1948 | FALSE), /* pcrel_offset */ | |
| 1949 | ||
| e054468f AM |
1950 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1951 | 0, /* rightshift */ | |
| 1952 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1953 | 64, /* bitsize */ | |
| 1954 | FALSE, /* pc_relative */ | |
| 1955 | 0, /* bitpos */ | |
| 1956 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1957 | bfd_elf_generic_reloc, /* special_function */ | |
| 1958 | "R_PPC64_IRELATIVE", /* name */ | |
| 1959 | FALSE, /* partial_inplace */ | |
| 1960 | 0, /* src_mask */ | |
| 1961 | ONES (64), /* dst_mask */ | |
| 1962 | FALSE), /* pcrel_offset */ | |
| 1963 | ||
| 25f23106 AM |
1964 | /* A 16 bit relative relocation. */ |
| 1965 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1966 | 0, /* rightshift */ | |
| 1967 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1968 | 16, /* bitsize */ | |
| 1969 | TRUE, /* pc_relative */ | |
| 1970 | 0, /* bitpos */ | |
| b80eed39 | 1971 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1972 | bfd_elf_generic_reloc, /* special_function */ |
| 1973 | "R_PPC64_REL16", /* name */ | |
| 1974 | FALSE, /* partial_inplace */ | |
| 1975 | 0, /* src_mask */ | |
| 1976 | 0xffff, /* dst_mask */ | |
| 1977 | TRUE), /* pcrel_offset */ | |
| 1978 | ||
| 1979 | /* A 16 bit relative relocation without overflow. */ | |
| 1980 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1981 | 0, /* rightshift */ | |
| 1982 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1983 | 16, /* bitsize */ | |
| 1984 | TRUE, /* pc_relative */ | |
| 1985 | 0, /* bitpos */ | |
| 1986 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1987 | bfd_elf_generic_reloc, /* special_function */ | |
| 1988 | "R_PPC64_REL16_LO", /* name */ | |
| 1989 | FALSE, /* partial_inplace */ | |
| 1990 | 0, /* src_mask */ | |
| 1991 | 0xffff, /* dst_mask */ | |
| 1992 | TRUE), /* pcrel_offset */ | |
| 1993 | ||
| 1994 | /* The high order 16 bits of a relative address. */ | |
| 1995 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 1996 | 16, /* rightshift */ | |
| 1997 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1998 | 16, /* bitsize */ | |
| 1999 | TRUE, /* pc_relative */ | |
| 2000 | 0, /* bitpos */ | |
| f9c6b907 | 2001 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2002 | bfd_elf_generic_reloc, /* special_function */ |
| 2003 | "R_PPC64_REL16_HI", /* name */ | |
| 2004 | FALSE, /* partial_inplace */ | |
| 2005 | 0, /* src_mask */ | |
| 2006 | 0xffff, /* dst_mask */ | |
| 2007 | TRUE), /* pcrel_offset */ | |
| 2008 | ||
| 2009 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2010 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2011 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2012 | 16, /* rightshift */ | |
| 2013 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2014 | 16, /* bitsize */ | |
| 2015 | TRUE, /* pc_relative */ | |
| 2016 | 0, /* bitpos */ | |
| f9c6b907 | 2017 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2018 | ppc64_elf_ha_reloc, /* special_function */ |
| 2019 | "R_PPC64_REL16_HA", /* name */ | |
| 2020 | FALSE, /* partial_inplace */ | |
| 2021 | 0, /* src_mask */ | |
| 2022 | 0xffff, /* dst_mask */ | |
| 2023 | TRUE), /* pcrel_offset */ | |
| 2024 | ||
| a680de9a PB |
2025 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2026 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2027 | 16, /* rightshift */ | |
| 2028 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2029 | 16, /* bitsize */ | |
| 2030 | TRUE, /* pc_relative */ | |
| 2031 | 0, /* bitpos */ | |
| 2032 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2033 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2034 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2035 | FALSE, /* partial_inplace */ | |
| 2036 | 0, /* src_mask */ | |
| 2037 | 0x1fffc1, /* dst_mask */ | |
| 2038 | TRUE), /* pcrel_offset */ | |
| 2039 | ||
| f9c6b907 AM |
2040 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2041 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2042 | 16, /* rightshift */ | |
| 2043 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2044 | 16, /* bitsize */ | |
| 2045 | FALSE, /* pc_relative */ | |
| 2046 | 0, /* bitpos */ | |
| 2047 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2048 | bfd_elf_generic_reloc, /* special_function */ | |
| 2049 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2050 | FALSE, /* partial_inplace */ | |
| 2051 | 0, /* src_mask */ | |
| 2052 | 0xffff, /* dst_mask */ | |
| 2053 | FALSE), /* pcrel_offset */ | |
| 2054 | ||
| 2055 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2056 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2057 | 16, /* rightshift */ | |
| 2058 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2059 | 16, /* bitsize */ | |
| 2060 | FALSE, /* pc_relative */ | |
| 2061 | 0, /* bitpos */ | |
| 2062 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2063 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2064 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2065 | FALSE, /* partial_inplace */ | |
| 2066 | 0, /* src_mask */ | |
| 2067 | 0xffff, /* dst_mask */ | |
| 2068 | FALSE), /* pcrel_offset */ | |
| 2069 | ||
| 2070 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2071 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2072 | 16, /* rightshift */ | |
| 2073 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2074 | 16, /* bitsize */ | |
| 2075 | FALSE, /* pc_relative */ | |
| 2076 | 0, /* bitpos */ | |
| 2077 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2078 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2079 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2080 | FALSE, /* partial_inplace */ | |
| 2081 | 0, /* src_mask */ | |
| 2082 | 0xffff, /* dst_mask */ | |
| 2083 | FALSE), /* pcrel_offset */ | |
| 2084 | ||
| 2085 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2086 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2087 | 16, /* rightshift */ | |
| 2088 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2089 | 16, /* bitsize */ | |
| 2090 | FALSE, /* pc_relative */ | |
| 2091 | 0, /* bitpos */ | |
| 2092 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2093 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2094 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2095 | FALSE, /* partial_inplace */ | |
| 2096 | 0, /* src_mask */ | |
| 2097 | 0xffff, /* dst_mask */ | |
| 2098 | FALSE), /* pcrel_offset */ | |
| 2099 | ||
| 2100 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2101 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2102 | 16, /* rightshift */ | |
| 2103 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2104 | 16, /* bitsize */ | |
| 2105 | FALSE, /* pc_relative */ | |
| 2106 | 0, /* bitpos */ | |
| 2107 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2108 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2109 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2110 | FALSE, /* partial_inplace */ | |
| 2111 | 0, /* src_mask */ | |
| 2112 | 0xffff, /* dst_mask */ | |
| 2113 | FALSE), /* pcrel_offset */ | |
| 2114 | ||
| 2115 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2116 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2117 | 16, /* rightshift */ | |
| 2118 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2119 | 16, /* bitsize */ | |
| 2120 | FALSE, /* pc_relative */ | |
| 2121 | 0, /* bitpos */ | |
| 2122 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2123 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2124 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2125 | FALSE, /* partial_inplace */ | |
| 2126 | 0, /* src_mask */ | |
| 2127 | 0xffff, /* dst_mask */ | |
| 2128 | FALSE), /* pcrel_offset */ | |
| 2129 | ||
| 45965137 AM |
2130 | /* Like ADDR64, but use local entry point of function. */ |
| 2131 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2132 | 0, /* rightshift */ | |
| 2133 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2134 | 64, /* bitsize */ | |
| 2135 | FALSE, /* pc_relative */ | |
| 2136 | 0, /* bitpos */ | |
| 2137 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2138 | bfd_elf_generic_reloc, /* special_function */ | |
| 2139 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2140 | FALSE, /* partial_inplace */ | |
| 2141 | 0, /* src_mask */ | |
| 2142 | ONES (64), /* dst_mask */ | |
| 2143 | FALSE), /* pcrel_offset */ | |
| 2144 | ||
| 5bd4f169 AM |
2145 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2146 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2147 | 0, /* rightshift */ | |
| 2148 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2149 | 0, /* bitsize */ | |
| b34976b6 | 2150 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2151 | 0, /* bitpos */ |
| 2152 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2153 | NULL, /* special_function */ | |
| 2154 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2155 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2156 | 0, /* src_mask */ |
| 2157 | 0, /* dst_mask */ | |
| b34976b6 | 2158 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2159 | |
| 2160 | /* GNU extension to record C++ vtable member usage. */ | |
| 2161 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2162 | 0, /* rightshift */ | |
| 2163 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2164 | 0, /* bitsize */ | |
| b34976b6 | 2165 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2166 | 0, /* bitpos */ |
| 2167 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2168 | NULL, /* special_function */ | |
| 2169 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2170 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2171 | 0, /* src_mask */ |
| 2172 | 0, /* dst_mask */ | |
| b34976b6 | 2173 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2174 | }; |
| 2175 | ||
| 2176 | \f | |
| 2177 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2178 | be done. */ | |
| 2179 | ||
| 2180 | static void | |
| 4ce794b7 | 2181 | ppc_howto_init (void) |
| 5bd4f169 AM |
2182 | { |
| 2183 | unsigned int i, type; | |
| 2184 | ||
| a4b6fadd | 2185 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2186 | { |
| 2187 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2188 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2189 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2190 | } | |
| 2191 | } | |
| 2192 | ||
| 2193 | static reloc_howto_type * | |
| 4ce794b7 AM |
2194 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2195 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2196 | { |
| 411e1bfb | 2197 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2198 | |
| 2199 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2200 | /* Initialize howto table if needed. */ | |
| 2201 | ppc_howto_init (); | |
| 2202 | ||
| 4ce794b7 | 2203 | switch (code) |
| 5bd4f169 AM |
2204 | { |
| 2205 | default: | |
| 4ce794b7 | 2206 | return NULL; |
| 5bd4f169 | 2207 | |
| 411e1bfb AM |
2208 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2209 | break; | |
| 2210 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2211 | break; | |
| 2212 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2213 | break; | |
| 2214 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2215 | break; | |
| 2216 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2217 | break; | |
| 2218 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2219 | break; | |
| f9c6b907 AM |
2220 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2221 | break; | |
| 411e1bfb | 2222 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2223 | break; |
| f9c6b907 AM |
2224 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2225 | break; | |
| 411e1bfb | 2226 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2227 | break; |
| 411e1bfb | 2228 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2229 | break; |
| 411e1bfb | 2230 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2231 | break; |
| 411e1bfb | 2232 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2233 | break; |
| 411e1bfb | 2234 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2235 | break; |
| 411e1bfb | 2236 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2237 | break; |
| 411e1bfb | 2238 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2239 | break; |
| 411e1bfb | 2240 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2241 | break; |
| 411e1bfb | 2242 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2243 | break; |
| 411e1bfb | 2244 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2245 | break; |
| 411e1bfb | 2246 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2247 | break; |
| 411e1bfb | 2248 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2249 | break; |
| 411e1bfb | 2250 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2251 | break; |
| 411e1bfb | 2252 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2253 | break; |
| 411e1bfb | 2254 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2255 | break; |
| 411e1bfb | 2256 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2257 | break; |
| 411e1bfb | 2258 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2259 | break; |
| 411e1bfb | 2260 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2261 | break; |
| 411e1bfb | 2262 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2263 | break; |
| 411e1bfb | 2264 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2265 | break; |
| 411e1bfb | 2266 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2267 | break; |
| 411e1bfb | 2268 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2269 | break; |
| 411e1bfb | 2270 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2315 | break; |
| 411e1bfb | 2316 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2317 | break; |
| 411e1bfb | 2318 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2319 | break; |
| 411e1bfb | 2320 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2327 | break; |
| 411e1bfb | 2328 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2329 | break; |
| 411e1bfb | 2330 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2331 | break; |
| 727fc41e AM |
2332 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2333 | break; | |
| 2334 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2335 | break; | |
| 411e1bfb | 2336 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2337 | break; |
| 411e1bfb | 2338 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2339 | break; |
| 411e1bfb | 2340 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2341 | break; |
| 411e1bfb | 2342 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2343 | break; |
| f9c6b907 AM |
2344 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2345 | break; | |
| 411e1bfb | 2346 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2347 | break; |
| f9c6b907 AM |
2348 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2349 | break; | |
| 411e1bfb | 2350 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2351 | break; |
| 411e1bfb AM |
2352 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2353 | break; | |
| 2354 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2355 | break; | |
| 2356 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2357 | break; | |
| f9c6b907 AM |
2358 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2359 | break; | |
| 411e1bfb AM |
2360 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2361 | break; | |
| f9c6b907 AM |
2362 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2363 | break; | |
| 411e1bfb AM |
2364 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2365 | break; | |
| 2366 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2367 | break; | |
| 2368 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2369 | break; | |
| 2370 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2371 | break; | |
| 2372 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2373 | break; | |
| 2374 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2375 | break; | |
| 2376 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2377 | break; | |
| 2378 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2379 | break; | |
| 2380 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2381 | break; | |
| 2382 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2383 | break; | |
| 2384 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2385 | break; | |
| 2386 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2387 | break; | |
| 2388 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2389 | break; | |
| 2390 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2391 | break; | |
| 2392 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2393 | break; | |
| 2394 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2395 | break; | |
| 2396 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2397 | break; | |
| 2398 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2399 | break; | |
| 2400 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2401 | break; | |
| 2402 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2403 | break; | |
| 2404 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2405 | break; | |
| 2406 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2407 | break; | |
| 2408 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2409 | break; | |
| 2410 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2413 | break; | |
| 2414 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2415 | break; | |
| 2416 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2417 | break; | |
| 2418 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2419 | break; | |
| 2420 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2421 | break; | |
| 25f23106 AM |
2422 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2423 | break; | |
| 2424 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2425 | break; | |
| 2426 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2427 | break; | |
| 2428 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2429 | break; | |
| a680de9a PB |
2430 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2431 | break; | |
| 45965137 AM |
2432 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2433 | break; | |
| 411e1bfb AM |
2434 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2435 | break; | |
| 2436 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2437 | break; |
| 2438 | } | |
| 2439 | ||
| 4ce794b7 | 2440 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2441 | }; |
| 2442 | ||
| 157090f7 AM |
2443 | static reloc_howto_type * |
| 2444 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2445 | const char *r_name) | |
| 2446 | { | |
| 2447 | unsigned int i; | |
| 2448 | ||
| a4b6fadd | 2449 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2450 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2451 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2452 | return &ppc64_elf_howto_raw[i]; | |
| 2453 | ||
| 2454 | return NULL; | |
| 2455 | } | |
| 2456 | ||
| 5bd4f169 AM |
2457 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2458 | ||
| 2459 | static void | |
| 4ce794b7 AM |
2460 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2461 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2462 | { |
| 65f38f15 AM |
2463 | unsigned int type; |
| 2464 | ||
| ef60b7ff | 2465 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2466 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2467 | ppc_howto_init (); |
| 2468 | ||
| 65f38f15 | 2469 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2470 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d JJ |
2471 | { |
| 2472 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
| 3ec2b351 NC |
2473 | abfd, (int) type); |
| 2474 | type = R_PPC64_NONE; | |
| d0fb9a8d | 2475 | } |
| 65f38f15 | 2476 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2477 | } |
| 2478 | ||
| 04c9666a | 2479 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2480 | |
| 2481 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2482 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2483 | void *data, asection *input_section, | |
| 2484 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2485 | { |
| a680de9a PB |
2486 | enum elf_ppc64_reloc_type r_type; |
| 2487 | long insn; | |
| 2488 | bfd_size_type octets; | |
| 2489 | bfd_vma value; | |
| 2490 | ||
| 805fc799 AM |
2491 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2492 | call the generic function. Any adjustment will be done at final | |
| 2493 | link time. */ | |
| 2494 | if (output_bfd != NULL) | |
| cedb70c5 | 2495 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2496 | input_section, output_bfd, error_message); |
| 2497 | ||
| 2498 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2499 | We won't actually be using the low 16 bits, so trashing them | |
| 2500 | doesn't matter. */ | |
| 2501 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2502 | r_type = reloc_entry->howto->type; |
| 2503 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2504 | return bfd_reloc_continue; | |
| 2505 | ||
| 2506 | value = 0; | |
| 2507 | if (!bfd_is_com_section (symbol->section)) | |
| 2508 | value = symbol->value; | |
| 2509 | value += (reloc_entry->addend | |
| 2510 | + symbol->section->output_offset | |
| 2511 | + symbol->section->output_section->vma); | |
| 2512 | value -= (reloc_entry->address | |
| 2513 | + input_section->output_offset | |
| 2514 | + input_section->output_section->vma); | |
| 2515 | value = (bfd_signed_vma) value >> 16; | |
| 2516 | ||
| 2517 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2518 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2519 | insn &= ~0x1fffc1; | |
| 2520 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
| 2521 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
| 2522 | if (value + 0x8000 > 0xffff) | |
| 2523 | return bfd_reloc_overflow; | |
| 2524 | return bfd_reloc_ok; | |
| 805fc799 | 2525 | } |
| 5bd4f169 | 2526 | |
| 2441e016 AM |
2527 | static bfd_reloc_status_type |
| 2528 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2529 | void *data, asection *input_section, | |
| 2530 | bfd *output_bfd, char **error_message) | |
| 2531 | { | |
| 2532 | if (output_bfd != NULL) | |
| 2533 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2534 | input_section, output_bfd, error_message); | |
| 2535 | ||
| 699733f6 AM |
2536 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2537 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2538 | { |
| 2539 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2540 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2541 | NULL, NULL, FALSE); |
| 2441e016 AM |
2542 | if (dest != (bfd_vma) -1) |
| 2543 | reloc_entry->addend = dest - (symbol->value | |
| 2544 | + symbol->section->output_section->vma | |
| 2545 | + symbol->section->output_offset); | |
| 2546 | } | |
| 810d4e75 AM |
2547 | else |
| 2548 | { | |
| 2549 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2550 | ||
| 2551 | if (symbol->section->owner != abfd | |
| 2552 | && abiversion (symbol->section->owner) >= 2) | |
| 2553 | { | |
| 2554 | unsigned int i; | |
| 2555 | ||
| 2556 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2557 | { | |
| 2558 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2559 | ||
| 2560 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2561 | { | |
| 2562 | elfsym = (elf_symbol_type *) symdef; | |
| 2563 | break; | |
| 2564 | } | |
| 2565 | } | |
| 2566 | } | |
| 2567 | reloc_entry->addend | |
| 2568 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2569 | } | |
| 2441e016 AM |
2570 | return bfd_reloc_continue; |
| 2571 | } | |
| 2572 | ||
| 805fc799 | 2573 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2574 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2575 | void *data, asection *input_section, | |
| 2576 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2577 | { |
| 2578 | long insn; | |
| 04c9666a | 2579 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2580 | bfd_size_type octets; |
| 794e51c0 AM |
2581 | /* Assume 'at' branch hints. */ |
| 2582 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2583 | |
| 2584 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2585 | call the generic function. Any adjustment will be done at final | |
| 2586 | link time. */ | |
| 5bd4f169 | 2587 | if (output_bfd != NULL) |
| cedb70c5 | 2588 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2589 | input_section, output_bfd, error_message); |
| 2590 | ||
| 2591 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2592 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2593 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2594 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2595 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2596 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2597 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2598 | |
| 794e51c0 | 2599 | if (is_isa_v2) |
| 5bd4f169 | 2600 | { |
| 805fc799 AM |
2601 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2602 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2603 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2604 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2605 | insn |= 0x02 << 21; | |
| 2606 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2607 | insn |= 0x08 << 21; | |
| 2608 | else | |
| 2441e016 | 2609 | goto out; |
| 5bd4f169 | 2610 | } |
| 805fc799 AM |
2611 | else |
| 2612 | { | |
| 2613 | bfd_vma target = 0; | |
| 2614 | bfd_vma from; | |
| 5bd4f169 | 2615 | |
| 805fc799 AM |
2616 | if (!bfd_is_com_section (symbol->section)) |
| 2617 | target = symbol->value; | |
| 2618 | target += symbol->section->output_section->vma; | |
| 2619 | target += symbol->section->output_offset; | |
| 2620 | target += reloc_entry->addend; | |
| 5bd4f169 | 2621 | |
| 805fc799 AM |
2622 | from = (reloc_entry->address |
| 2623 | + input_section->output_offset | |
| 2624 | + input_section->output_section->vma); | |
| 5bd4f169 | 2625 | |
| 805fc799 AM |
2626 | /* Invert 'y' bit if not the default. */ |
| 2627 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2628 | insn ^= 0x01 << 21; | |
| 2629 | } | |
| 4ce794b7 | 2630 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2631 | out: |
| 2632 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2633 | input_section, output_bfd, error_message); | |
| 805fc799 | 2634 | } |
| 5bd4f169 | 2635 | |
| 805fc799 | 2636 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2637 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2638 | void *data, asection *input_section, | |
| 2639 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2640 | { |
| 2641 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2642 | call the generic function. Any adjustment will be done at final | |
| 2643 | link time. */ | |
| 2644 | if (output_bfd != NULL) | |
| cedb70c5 | 2645 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2646 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2647 | |
| 805fc799 AM |
2648 | /* Subtract the symbol section base address. */ |
| 2649 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2650 | return bfd_reloc_continue; |
| 2651 | } | |
| 2652 | ||
| 805fc799 | 2653 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2654 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2655 | void *data, asection *input_section, | |
| 2656 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2657 | { |
| 2658 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2659 | call the generic function. Any adjustment will be done at final | |
| 2660 | link time. */ | |
| 2661 | if (output_bfd != NULL) | |
| cedb70c5 | 2662 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2663 | input_section, output_bfd, error_message); |
| 2664 | ||
| 2665 | /* Subtract the symbol section base address. */ | |
| 2666 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2667 | ||
| 2668 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2669 | reloc_entry->addend += 0x8000; | |
| 2670 | return bfd_reloc_continue; | |
| 2671 | } | |
| 2672 | ||
| 2673 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2674 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2675 | void *data, asection *input_section, | |
| 2676 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2677 | { |
| 2678 | bfd_vma TOCstart; | |
| 2679 | ||
| 2680 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2681 | call the generic function. Any adjustment will be done at final | |
| 2682 | link time. */ | |
| 2683 | if (output_bfd != NULL) | |
| cedb70c5 | 2684 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2685 | input_section, output_bfd, error_message); |
| 2686 | ||
| 2687 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2688 | if (TOCstart == 0) | |
| 1c865ab2 | 2689 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2690 | |
| 2691 | /* Subtract the TOC base address. */ | |
| 2692 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2693 | return bfd_reloc_continue; | |
| 2694 | } | |
| 2695 | ||
| 2696 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2697 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2698 | void *data, asection *input_section, | |
| 2699 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2700 | { |
| 2701 | bfd_vma TOCstart; | |
| 2702 | ||
| 2703 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2704 | call the generic function. Any adjustment will be done at final | |
| 2705 | link time. */ | |
| 2706 | if (output_bfd != NULL) | |
| cedb70c5 | 2707 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2708 | input_section, output_bfd, error_message); |
| 2709 | ||
| 2710 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2711 | if (TOCstart == 0) | |
| 1c865ab2 | 2712 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2713 | |
| 2714 | /* Subtract the TOC base address. */ | |
| 2715 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2716 | ||
| 2717 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2718 | reloc_entry->addend += 0x8000; | |
| 2719 | return bfd_reloc_continue; | |
| 2720 | } | |
| 2721 | ||
| 2722 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2723 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2724 | void *data, asection *input_section, | |
| 2725 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2726 | { |
| 2727 | bfd_vma TOCstart; | |
| 2728 | bfd_size_type octets; | |
| 2729 | ||
| 2730 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2731 | call the generic function. Any adjustment will be done at final | |
| 2732 | link time. */ | |
| 2733 | if (output_bfd != NULL) | |
| cedb70c5 | 2734 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2735 | input_section, output_bfd, error_message); |
| 2736 | ||
| 2737 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2738 | if (TOCstart == 0) | |
| 1c865ab2 | 2739 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2740 | |
| 2741 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2742 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2743 | return bfd_reloc_ok; | |
| 2744 | } | |
| 2745 | ||
| 2746 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2747 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2748 | void *data, asection *input_section, | |
| 2749 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2750 | { |
| 2751 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2752 | call the generic function. Any adjustment will be done at final | |
| 2753 | link time. */ | |
| 2754 | if (output_bfd != NULL) | |
| cedb70c5 | 2755 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2756 | input_section, output_bfd, error_message); |
| 2757 | ||
| 2758 | if (error_message != NULL) | |
| 2759 | { | |
| 2760 | static char buf[60]; | |
| 2761 | sprintf (buf, "generic linker can't handle %s", | |
| 2762 | reloc_entry->howto->name); | |
| 2763 | *error_message = buf; | |
| 2764 | } | |
| 2765 | return bfd_reloc_dangerous; | |
| 2766 | } | |
| 2767 | ||
| 927be08e AM |
2768 | /* Track GOT entries needed for a given symbol. We might need more |
| 2769 | than one got entry per symbol. */ | |
| 2770 | struct got_entry | |
| 2771 | { | |
| 2772 | struct got_entry *next; | |
| 2773 | ||
| 2774 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2775 | bfd_vma addend; | |
| 2776 | ||
| 2777 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2778 | symbol referenced from different input files. This is to support | |
| 2779 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2780 | from one input file to another. After partitioning into TOC groups | |
| 2781 | we merge entries within the group. | |
| 2782 | ||
| 2783 | Point to the BFD owning this GOT entry. */ | |
| 2784 | bfd *owner; | |
| 2785 | ||
| 2786 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2787 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2788 | unsigned char tls_type; |
| 927be08e AM |
2789 | |
| 2790 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2791 | unsigned char is_indirect; |
| 927be08e AM |
2792 | |
| 2793 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2794 | union | |
| 2795 | { | |
| 2796 | bfd_signed_vma refcount; | |
| 2797 | bfd_vma offset; | |
| 2798 | struct got_entry *ent; | |
| 2799 | } got; | |
| 2800 | }; | |
| 2801 | ||
| 2802 | /* The same for PLT. */ | |
| 2803 | struct plt_entry | |
| 2804 | { | |
| 2805 | struct plt_entry *next; | |
| 2806 | ||
| 2807 | bfd_vma addend; | |
| 2808 | ||
| 2809 | union | |
| 2810 | { | |
| 2811 | bfd_signed_vma refcount; | |
| 2812 | bfd_vma offset; | |
| 2813 | } plt; | |
| 2814 | }; | |
| 2815 | ||
| e717da7e AM |
2816 | struct ppc64_elf_obj_tdata |
| 2817 | { | |
| 2818 | struct elf_obj_tdata elf; | |
| 2819 | ||
| 2820 | /* Shortcuts to dynamic linker sections. */ | |
| 2821 | asection *got; | |
| 2822 | asection *relgot; | |
| 2823 | ||
| b3fac117 AM |
2824 | /* Used during garbage collection. We attach global symbols defined |
| 2825 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2826 | asection *deleted_section; | |
| 81688140 | 2827 | |
| 927be08e | 2828 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2829 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2830 | struct got_entry tlsld_got; |
| 8860955f | 2831 | |
| 729eabd5 AM |
2832 | union { |
| 2833 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2834 | Elf_Internal_Rela *relocs; | |
| 2835 | ||
| 2836 | /* Section contents. */ | |
| 2837 | bfd_byte *contents; | |
| 2838 | } opd; | |
| d77c8a4b AM |
2839 | |
| 2840 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2841 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2842 | unsigned int has_small_toc_reloc : 1; |
| 2843 | ||
| 560c8763 AM |
2844 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2845 | instruction not one we handle. */ | |
| 2846 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2847 | }; |
| 2848 | ||
| 2849 | #define ppc64_elf_tdata(bfd) \ | |
| 2850 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2851 | ||
| 2852 | #define ppc64_tlsld_got(bfd) \ | |
| 2853 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2854 | ||
| 0c8d6e5c AM |
2855 | #define is_ppc64_elf(bfd) \ |
| 2856 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2857 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2858 | |
| e717da7e AM |
2859 | /* Override the generic function because we store some extras. */ |
| 2860 | ||
| 2861 | static bfd_boolean | |
| 2862 | ppc64_elf_mkobject (bfd *abfd) | |
| 2863 | { | |
| 0ffa91dd | 2864 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2865 | PPC64_ELF_DATA); |
| e717da7e AM |
2866 | } |
| 2867 | ||
| feee612b AM |
2868 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 2869 | default is 32 bit. */ | |
| 2870 | ||
| b34976b6 | 2871 | static bfd_boolean |
| 4ce794b7 | 2872 | ppc64_elf_object_p (bfd *abfd) |
| feee612b AM |
2873 | { |
| 2874 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
| 2875 | { | |
| 2876 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2877 | ||
| 2878 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2879 | { | |
| 2880 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2881 | abfd->arch_info = abfd->arch_info->next; | |
| 2882 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2883 | } | |
| 2884 | } | |
| b34976b6 | 2885 | return TRUE; |
| feee612b AM |
2886 | } |
| 2887 | ||
| d37c89e5 AM |
2888 | /* Support for core dump NOTE sections. */ |
| 2889 | ||
| 2890 | static bfd_boolean | |
| 2891 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2892 | { | |
| eea6121a | 2893 | size_t offset, size; |
| d37c89e5 AM |
2894 | |
| 2895 | if (note->descsz != 504) | |
| 2896 | return FALSE; | |
| 2897 | ||
| 2898 | /* pr_cursig */ | |
| 228e534f | 2899 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2900 | |
| 2901 | /* pr_pid */ | |
| 228e534f | 2902 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2903 | |
| 2904 | /* pr_reg */ | |
| 2905 | offset = 112; | |
| eea6121a | 2906 | size = 384; |
| d37c89e5 AM |
2907 | |
| 2908 | /* Make a ".reg/999" section. */ | |
| 2909 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2910 | size, note->descpos + offset); |
| d37c89e5 AM |
2911 | } |
| 2912 | ||
| 2913 | static bfd_boolean | |
| 2914 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2915 | { | |
| 2916 | if (note->descsz != 136) | |
| 2917 | return FALSE; | |
| 2918 | ||
| 228e534f | 2919 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2920 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2921 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2922 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2923 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2924 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2925 | ||
| 2926 | return TRUE; | |
| 2927 | } | |
| 2928 | ||
| 183e98be AM |
2929 | static char * |
| 2930 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2931 | ...) | |
| 2932 | { | |
| 2933 | switch (note_type) | |
| 2934 | { | |
| 2935 | default: | |
| 2936 | return NULL; | |
| 2937 | ||
| 2938 | case NT_PRPSINFO: | |
| 2939 | { | |
| 2940 | char data[136]; | |
| 2941 | va_list ap; | |
| 2942 | ||
| 2943 | va_start (ap, note_type); | |
| 75cd47ed | 2944 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2945 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2946 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2947 | va_end (ap); | |
| 2948 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2949 | "CORE", note_type, data, sizeof (data)); | |
| 2950 | } | |
| 2951 | ||
| 2952 | case NT_PRSTATUS: | |
| 2953 | { | |
| 2954 | char data[504]; | |
| 2955 | va_list ap; | |
| 2956 | long pid; | |
| 2957 | int cursig; | |
| 2958 | const void *greg; | |
| 2959 | ||
| 2960 | va_start (ap, note_type); | |
| 2961 | memset (data, 0, 112); | |
| 2962 | pid = va_arg (ap, long); | |
| 2963 | bfd_put_32 (abfd, pid, data + 32); | |
| 2964 | cursig = va_arg (ap, int); | |
| 2965 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2966 | greg = va_arg (ap, const void *); | |
| 2967 | memcpy (data + 112, greg, 384); | |
| 2968 | memset (data + 496, 0, 8); | |
| 2969 | va_end (ap); | |
| 2970 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2971 | "CORE", note_type, data, sizeof (data)); | |
| 2972 | } | |
| 2973 | } | |
| 2974 | } | |
| 2975 | ||
| 5d35169e AM |
2976 | /* Add extra PPC sections. */ |
| 2977 | ||
| b35d266b | 2978 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 2979 | { |
| 0112cd26 NC |
2980 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 2981 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2982 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2983 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2984 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2985 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2986 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
2987 | }; |
| 2988 | ||
| 7c8fe5c4 AM |
2989 | enum _ppc64_sec_type { |
| 2990 | sec_normal = 0, | |
| 2991 | sec_opd = 1, | |
| 2992 | sec_toc = 2 | |
| 2993 | }; | |
| 2994 | ||
| f0abc2a1 AM |
2995 | struct _ppc64_elf_section_data |
| 2996 | { | |
| 2997 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 2998 | |
| f0abc2a1 AM |
2999 | union |
| 3000 | { | |
| 51aecdc5 AM |
3001 | /* An array with one entry for each opd function descriptor, |
| 3002 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3003 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3004 | struct _opd_sec_data |
| 3005 | { | |
| 3006 | /* Points to the function code section for local opd entries. */ | |
| 3007 | asection **func_sec; | |
| 3008 | ||
| 3009 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3010 | long *adjust; | |
| 3011 | } opd; | |
| 7c8fe5c4 | 3012 | |
| 3a71aa26 AM |
3013 | /* An array for toc sections, indexed by offset/8. */ |
| 3014 | struct _toc_sec_data | |
| 3015 | { | |
| 3016 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3017 | unsigned *symndx; | |
| 3018 | ||
| 3019 | /* And the relocation addend. */ | |
| 3020 | bfd_vma *add; | |
| 3021 | } toc; | |
| 7c8fe5c4 AM |
3022 | } u; |
| 3023 | ||
| 3024 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3025 | |
| 7c8fe5c4 AM |
3026 | /* Flag set when small branches are detected. Used to |
| 3027 | select suitable defaults for the stub group size. */ | |
| 3028 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3029 | }; |
| 3030 | ||
| 3031 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3032 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3033 | |
| 3034 | static bfd_boolean | |
| 4ce794b7 | 3035 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3036 | { |
| f592407e AM |
3037 | if (!sec->used_by_bfd) |
| 3038 | { | |
| 3039 | struct _ppc64_elf_section_data *sdata; | |
| 3040 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3041 | |
| f592407e AM |
3042 | sdata = bfd_zalloc (abfd, amt); |
| 3043 | if (sdata == NULL) | |
| 3044 | return FALSE; | |
| 3045 | sec->used_by_bfd = sdata; | |
| 3046 | } | |
| f0abc2a1 AM |
3047 | |
| 3048 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3049 | } | |
| 4025353c | 3050 | |
| 74f0fb50 | 3051 | static struct _opd_sec_data * |
| 4025353c AM |
3052 | get_opd_info (asection * sec) |
| 3053 | { | |
| 3054 | if (sec != NULL | |
| 3055 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3056 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3057 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3058 | return NULL; |
| 3059 | } | |
| 90e3cdf2 JJ |
3060 | \f |
| 3061 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 JJ |
3062 | static bfd_boolean synthetic_relocatable; |
| 3063 | ||
| 699733f6 | 3064 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3065 | |
| 3066 | static int | |
| 3067 | compare_symbols (const void *ap, const void *bp) | |
| 3068 | { | |
| 3069 | const asymbol *a = * (const asymbol **) ap; | |
| 3070 | const asymbol *b = * (const asymbol **) bp; | |
| 3071 | ||
| 699733f6 AM |
3072 | /* Section symbols first. */ |
| 3073 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3074 | return -1; |
| 699733f6 | 3075 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3076 | return 1; |
| 3077 | ||
| 699733f6 | 3078 | /* then .opd symbols. */ |
| ffcfec52 AM |
3079 | if (strcmp (a->section->name, ".opd") == 0 |
| 3080 | && strcmp (b->section->name, ".opd") != 0) | |
| 90e3cdf2 | 3081 | return -1; |
| ffcfec52 AM |
3082 | if (strcmp (a->section->name, ".opd") != 0 |
| 3083 | && strcmp (b->section->name, ".opd") == 0) | |
| 90e3cdf2 JJ |
3084 | return 1; |
| 3085 | ||
| 699733f6 | 3086 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3087 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3088 | == (SEC_CODE | SEC_ALLOC) | |
| 3089 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3090 | != (SEC_CODE | SEC_ALLOC)) | |
| 3091 | return -1; | |
| 3092 | ||
| 3093 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3094 | != (SEC_CODE | SEC_ALLOC) | |
| 3095 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3096 | == (SEC_CODE | SEC_ALLOC)) | |
| 3097 | return 1; | |
| 3098 | ||
| 3099 | if (synthetic_relocatable) | |
| 3100 | { | |
| 3101 | if (a->section->id < b->section->id) | |
| 3102 | return -1; | |
| 3103 | ||
| 3104 | if (a->section->id > b->section->id) | |
| 3105 | return 1; | |
| 3106 | } | |
| 3107 | ||
| 3108 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3109 | return -1; | |
| 3110 | ||
| 3111 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3112 | return 1; | |
| 3113 | ||
| 4d35a0aa AM |
3114 | /* For syms with the same value, prefer strong dynamic global function |
| 3115 | syms over other syms. */ | |
| 3116 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3117 | return -1; | |
| 3118 | ||
| 3119 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3120 | return 1; | |
| 3121 | ||
| 3122 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3123 | return -1; | |
| 3124 | ||
| 3125 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3126 | return 1; | |
| 3127 | ||
| 3128 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3129 | return -1; | |
| 3130 | ||
| 3131 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3132 | return 1; | |
| 3133 | ||
| 3134 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3135 | return -1; | |
| 3136 | ||
| 3137 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3138 | return 1; | |
| 3139 | ||
| 90e3cdf2 JJ |
3140 | return 0; |
| 3141 | } | |
| 3142 | ||
| 699733f6 | 3143 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3144 | |
| 699733f6 | 3145 | static asymbol * |
| 7292b3ac | 3146 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3147 | { |
| 699733f6 | 3148 | long mid; |
| 90e3cdf2 | 3149 | |
| 7292b3ac | 3150 | if (id == (unsigned) -1) |
| 699733f6 AM |
3151 | { |
| 3152 | while (lo < hi) | |
| 3153 | { | |
| 3154 | mid = (lo + hi) >> 1; | |
| 3155 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3156 | lo = mid + 1; | |
| 3157 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3158 | hi = mid; | |
| 3159 | else | |
| 3160 | return syms[mid]; | |
| 3161 | } | |
| 3162 | } | |
| 3163 | else | |
| 3164 | { | |
| 3165 | while (lo < hi) | |
| 3166 | { | |
| 3167 | mid = (lo + hi) >> 1; | |
| 3168 | if (syms[mid]->section->id < id) | |
| 3169 | lo = mid + 1; | |
| 3170 | else if (syms[mid]->section->id > id) | |
| 3171 | hi = mid; | |
| 3172 | else if (syms[mid]->value < value) | |
| 3173 | lo = mid + 1; | |
| 3174 | else if (syms[mid]->value > value) | |
| 3175 | hi = mid; | |
| 3176 | else | |
| 3177 | return syms[mid]; | |
| 3178 | } | |
| 3179 | } | |
| 3180 | return NULL; | |
| 90e3cdf2 JJ |
3181 | } |
| 3182 | ||
| 468392fb AM |
3183 | static bfd_boolean |
| 3184 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3185 | { | |
| 3186 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3187 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3188 | && section->vma <= vma | |
| 3189 | && vma < section->vma + section->size); | |
| 3190 | } | |
| 3191 | ||
| 699733f6 | 3192 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3193 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3194 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3195 | |
| 3196 | static long | |
| a7535cf3 AM |
3197 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3198 | long static_count, asymbol **static_syms, | |
| 3199 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3200 | asymbol **ret) |
| 90e3cdf2 JJ |
3201 | { |
| 3202 | asymbol *s; | |
| 699733f6 AM |
3203 | long i; |
| 3204 | long count; | |
| 90e3cdf2 | 3205 | char *names; |
| a7535cf3 | 3206 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3207 | asection *opd = NULL; |
| 90e3cdf2 | 3208 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3209 | asymbol **syms; |
| ee67d69a | 3210 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3211 | |
| 3212 | *ret = NULL; | |
| 3213 | ||
| ee67d69a AM |
3214 | if (abi < 2) |
| 3215 | { | |
| 3216 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3217 | if (opd == NULL && abi == 1) | |
| 3218 | return 0; | |
| 3219 | } | |
| 90e3cdf2 | 3220 | |
| a7535cf3 | 3221 | symcount = static_count; |
| c9727e01 | 3222 | if (!relocatable) |
| a7535cf3 | 3223 | symcount += dyn_count; |
| 90e3cdf2 | 3224 | if (symcount == 0) |
| c9727e01 | 3225 | return 0; |
| 90e3cdf2 | 3226 | |
| a7535cf3 AM |
3227 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3228 | if (syms == NULL) | |
| 7356fed5 | 3229 | return -1; |
| a7535cf3 AM |
3230 | |
| 3231 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3232 | { | |
| 3233 | /* Use both symbol tables. */ | |
| 3234 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3235 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3236 | } | |
| 3237 | else if (!relocatable && static_count == 0) | |
| 3238 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3239 | else | |
| 3240 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3241 | ||
| 90e3cdf2 | 3242 | synthetic_relocatable = relocatable; |
| 595da8c5 | 3243 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3244 | |
| c9727e01 AM |
3245 | if (!relocatable && symcount > 1) |
| 3246 | { | |
| 3247 | long j; | |
| 3248 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3249 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3250 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3251 | for (i = 1, j = 1; i < symcount; ++i) |
| 3252 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3253 | != syms[i]->value + syms[i]->section->vma) | |
| 3254 | syms[j++] = syms[i]; | |
| 3255 | symcount = j; | |
| 3256 | } | |
| 3257 | ||
| 699733f6 | 3258 | i = 0; |
| ffcfec52 | 3259 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| 699733f6 AM |
3260 | ++i; |
| 3261 | codesecsym = i; | |
| 90e3cdf2 | 3262 | |
| 699733f6 AM |
3263 | for (; i < symcount; ++i) |
| 3264 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3265 | != (SEC_CODE | SEC_ALLOC)) | |
| 3266 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3267 | break; | |
| 3268 | codesecsymend = i; | |
| 90e3cdf2 | 3269 | |
| 699733f6 AM |
3270 | for (; i < symcount; ++i) |
| 3271 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3272 | break; | |
| 3273 | secsymend = i; | |
| 90e3cdf2 | 3274 | |
| 699733f6 | 3275 | for (; i < symcount; ++i) |
| ffcfec52 | 3276 | if (strcmp (syms[i]->section->name, ".opd") != 0) |
| 699733f6 AM |
3277 | break; |
| 3278 | opdsymend = i; | |
| 90e3cdf2 | 3279 | |
| 699733f6 AM |
3280 | for (; i < symcount; ++i) |
| 3281 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3282 | != (SEC_CODE | SEC_ALLOC)) | |
| 3283 | break; | |
| 3284 | symcount = i; | |
| 3285 | ||
| c9727e01 | 3286 | count = 0; |
| 90e3cdf2 | 3287 | |
| 699733f6 | 3288 | if (relocatable) |
| 90e3cdf2 | 3289 | { |
| 699733f6 AM |
3290 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3291 | arelent *r; | |
| 3292 | size_t size; | |
| 3293 | long relcount; | |
| 90e3cdf2 | 3294 | |
| 468392fb AM |
3295 | if (opdsymend == secsymend) |
| 3296 | goto done; | |
| 3297 | ||
| 699733f6 | 3298 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3299 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3300 | if (relcount == 0) |
| c9727e01 | 3301 | goto done; |
| 90e3cdf2 | 3302 | |
| 7356fed5 AM |
3303 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3304 | { | |
| 3305 | count = -1; | |
| 3306 | goto done; | |
| 3307 | } | |
| 3308 | ||
| 699733f6 | 3309 | size = 0; |
| 595da8c5 | 3310 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3311 | { |
| 3312 | asymbol *sym; | |
| 90e3cdf2 | 3313 | |
| 595da8c5 | 3314 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3315 | && r->address < syms[i]->value + opd->vma) |
| 3316 | ++r; | |
| 90e3cdf2 | 3317 | |
| 595da8c5 | 3318 | if (r == opd->relocation + relcount) |
| 699733f6 | 3319 | break; |
| 90e3cdf2 | 3320 | |
| 699733f6 AM |
3321 | if (r->address != syms[i]->value + opd->vma) |
| 3322 | continue; | |
| 90e3cdf2 | 3323 | |
| 699733f6 AM |
3324 | if (r->howto->type != R_PPC64_ADDR64) |
| 3325 | continue; | |
| 90e3cdf2 | 3326 | |
| 699733f6 AM |
3327 | sym = *r->sym_ptr_ptr; |
| 3328 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3329 | sym->section->id, sym->value + r->addend)) | |
| 3330 | { | |
| 3331 | ++count; | |
| 3332 | size += sizeof (asymbol); | |
| 3333 | size += strlen (syms[i]->name) + 2; | |
| 3334 | } | |
| 3335 | } | |
| 90e3cdf2 | 3336 | |
| c4b0b099 AM |
3337 | if (size == 0) |
| 3338 | goto done; | |
| 699733f6 AM |
3339 | s = *ret = bfd_malloc (size); |
| 3340 | if (s == NULL) | |
| 3341 | { | |
| 7356fed5 | 3342 | count = -1; |
| c9727e01 | 3343 | goto done; |
| 699733f6 | 3344 | } |
| 90e3cdf2 | 3345 | |
| 699733f6 | 3346 | names = (char *) (s + count); |
| 90e3cdf2 | 3347 | |
| 595da8c5 | 3348 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3349 | { |
| 699733f6 | 3350 | asymbol *sym; |
| 90e3cdf2 | 3351 | |
| 595da8c5 | 3352 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3353 | && r->address < syms[i]->value + opd->vma) |
| 3354 | ++r; | |
| 90e3cdf2 | 3355 | |
| 595da8c5 | 3356 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3357 | break; |
| 3358 | ||
| 3359 | if (r->address != syms[i]->value + opd->vma) | |
| 3360 | continue; | |
| 3361 | ||
| 3362 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3363 | continue; | |
| 90e3cdf2 | 3364 | |
| 699733f6 AM |
3365 | sym = *r->sym_ptr_ptr; |
| 3366 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3367 | sym->section->id, sym->value + r->addend)) | |
| 3368 | { | |
| 3369 | size_t len; | |
| 3370 | ||
| 3371 | *s = *syms[i]; | |
| 6ba2a415 | 3372 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3373 | s->section = sym->section; |
| 3374 | s->value = sym->value + r->addend; | |
| 3375 | s->name = names; | |
| 3376 | *names++ = '.'; | |
| 3377 | len = strlen (syms[i]->name); | |
| 3378 | memcpy (names, syms[i]->name, len + 1); | |
| 3379 | names += len + 1; | |
| 6f610d07 UW |
3380 | /* Have udata.p point back to the original symbol this |
| 3381 | synthetic symbol was derived from. */ | |
| 3382 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3383 | s++; |
| 3384 | } | |
| 3385 | } | |
| 3386 | } | |
| 3387 | else | |
| 90e3cdf2 | 3388 | { |
| 468392fb | 3389 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3390 | bfd_byte *contents = NULL; |
| 699733f6 | 3391 | size_t size; |
| 468392fb AM |
3392 | long plt_count = 0; |
| 3393 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3394 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3395 | arelent *p; | |
| 90e3cdf2 | 3396 | |
| ee67d69a | 3397 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3398 | { |
| c4b0b099 AM |
3399 | free_contents_and_exit_err: |
| 3400 | count = -1; | |
| ee67d69a | 3401 | free_contents_and_exit: |
| 699733f6 | 3402 | if (contents) |
| ee67d69a | 3403 | free (contents); |
| c9727e01 | 3404 | goto done; |
| 699733f6 | 3405 | } |
| 90e3cdf2 | 3406 | |
| 699733f6 AM |
3407 | size = 0; |
| 3408 | for (i = secsymend; i < opdsymend; ++i) | |
| 3409 | { | |
| 3410 | bfd_vma ent; | |
| 90e3cdf2 | 3411 | |
| 5ef11c02 AM |
3412 | /* Ignore bogus symbols. */ |
| 3413 | if (syms[i]->value > opd->size - 8) | |
| 3414 | continue; | |
| 3415 | ||
| 699733f6 AM |
3416 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3417 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3418 | { | |
| 3419 | ++count; | |
| 3420 | size += sizeof (asymbol); | |
| 3421 | size += strlen (syms[i]->name) + 2; | |
| 3422 | } | |
| 3423 | } | |
| 90e3cdf2 | 3424 | |
| 468392fb | 3425 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3426 | if (dyn_count != 0 |
| 3427 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3428 | { |
| 3429 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3430 | size_t extdynsize; | |
| 3431 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3432 | ||
| 3433 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3434 | goto free_contents_and_exit_err; |
| 468392fb AM |
3435 | |
| 3436 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3437 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3438 | ||
| 3439 | extdyn = dynbuf; | |
| 3440 | extdynend = extdyn + dynamic->size; | |
| 3441 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3442 | { | |
| 3443 | Elf_Internal_Dyn dyn; | |
| 3444 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3445 | ||
| 3446 | if (dyn.d_tag == DT_NULL) | |
| 3447 | break; | |
| 3448 | ||
| 3449 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3450 | { | |
| b9e5796b AM |
3451 | /* The first glink stub starts at offset 32; see |
| 3452 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3453 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3454 | /* The .glink section usually does not survive the final |
| 3455 | link; search for the section (usually .text) where the | |
| 3456 | glink stubs now reside. */ | |
| 3457 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3458 | &glink_vma); | |
| 3459 | break; | |
| 3460 | } | |
| 3461 | } | |
| 3462 | ||
| 3463 | free (dynbuf); | |
| 3464 | } | |
| 3465 | ||
| 3466 | if (glink != NULL) | |
| 3467 | { | |
| 3468 | /* Determine __glink trampoline by reading the relative branch | |
| 3469 | from the first glink stub. */ | |
| 3470 | bfd_byte buf[4]; | |
| b9e5796b AM |
3471 | unsigned int off = 0; |
| 3472 | ||
| 3473 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3474 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3475 | { |
| 3476 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3477 | insn ^= B_DOT; | |
| 3478 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3479 | { |
| 3480 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3481 | break; | |
| 3482 | } | |
| 3483 | off += 4; | |
| 3484 | if (off > 4) | |
| 3485 | break; | |
| 468392fb AM |
3486 | } |
| 3487 | ||
| 3488 | if (resolv_vma) | |
| 3489 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3490 | |
| 066ee829 AM |
3491 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3492 | if (relplt != NULL) | |
| 3493 | { | |
| 3494 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3495 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3496 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3497 | |
| 066ee829 AM |
3498 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3499 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3500 | |
| 066ee829 AM |
3501 | p = relplt->relocation; |
| 3502 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3503 | { |
| 3504 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3505 | if (p->addend != 0) | |
| 3506 | size += sizeof ("+0x") - 1 + 16; | |
| 3507 | } | |
| 066ee829 | 3508 | } |
| 468392fb AM |
3509 | } |
| 3510 | ||
| c4b0b099 AM |
3511 | if (size == 0) |
| 3512 | goto free_contents_and_exit; | |
| 699733f6 AM |
3513 | s = *ret = bfd_malloc (size); |
| 3514 | if (s == NULL) | |
| c4b0b099 | 3515 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3516 | |
| 468392fb | 3517 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3518 | |
| 699733f6 | 3519 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3520 | { |
| 699733f6 | 3521 | bfd_vma ent; |
| 90e3cdf2 | 3522 | |
| 5ef11c02 AM |
3523 | if (syms[i]->value > opd->size - 8) |
| 3524 | continue; | |
| 3525 | ||
| 699733f6 AM |
3526 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3527 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3528 | { |
| c9727e01 | 3529 | long lo, hi; |
| 699733f6 | 3530 | size_t len; |
| c9727e01 | 3531 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3532 | |
| 699733f6 AM |
3533 | *s = *syms[i]; |
| 3534 | lo = codesecsym; | |
| 3535 | hi = codesecsymend; | |
| 3536 | while (lo < hi) | |
| 3537 | { | |
| c9727e01 | 3538 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3539 | if (syms[mid]->section->vma < ent) |
| 3540 | lo = mid + 1; | |
| 3541 | else if (syms[mid]->section->vma > ent) | |
| 3542 | hi = mid; | |
| 3543 | else | |
| c9727e01 AM |
3544 | { |
| 3545 | sec = syms[mid]->section; | |
| 3546 | break; | |
| 3547 | } | |
| 699733f6 AM |
3548 | } |
| 3549 | ||
| c9727e01 | 3550 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3551 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3552 | |
| 3553 | for (; sec != NULL; sec = sec->next) | |
| 3554 | { | |
| 3555 | if (sec->vma > ent) | |
| 3556 | break; | |
| 63524580 JK |
3557 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3558 | info file. */ | |
| 3559 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3560 | break; |
| 3561 | if ((sec->flags & SEC_CODE) != 0) | |
| 3562 | s->section = sec; | |
| 3563 | } | |
| 6ba2a415 | 3564 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3565 | s->value = ent - s->section->vma; |
| 3566 | s->name = names; | |
| 3567 | *names++ = '.'; | |
| 3568 | len = strlen (syms[i]->name); | |
| 3569 | memcpy (names, syms[i]->name, len + 1); | |
| 3570 | names += len + 1; | |
| 6f610d07 UW |
3571 | /* Have udata.p point back to the original symbol this |
| 3572 | synthetic symbol was derived from. */ | |
| 3573 | s->udata.p = syms[i]; | |
| 699733f6 | 3574 | s++; |
| 90e3cdf2 | 3575 | } |
| 90e3cdf2 | 3576 | } |
| 699733f6 | 3577 | free (contents); |
| 468392fb AM |
3578 | |
| 3579 | if (glink != NULL && relplt != NULL) | |
| 3580 | { | |
| 3581 | if (resolv_vma) | |
| 3582 | { | |
| 3583 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3584 | memset (s, 0, sizeof *s); |
| 468392fb | 3585 | s->the_bfd = abfd; |
| 6ba2a415 | 3586 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3587 | s->section = glink; |
| 3588 | s->value = resolv_vma - glink->vma; | |
| 3589 | s->name = names; | |
| 3590 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3591 | names += sizeof ("__glink_PLTresolve"); | |
| 3592 | s++; | |
| 3593 | count++; | |
| 3594 | } | |
| 3595 | ||
| 3596 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3597 | stub rather than on the glink branch table entry. The | |
| 3598 | objdump disassembler would then use a sensible symbol | |
| 3599 | name on plt calls. The difficulty in doing so is | |
| 3600 | a) finding the stubs, and, | |
| 3601 | b) matching stubs against plt entries, and, | |
| 3602 | c) there can be multiple stubs for a given plt entry. | |
| 3603 | ||
| 3604 | Solving (a) could be done by code scanning, but older | |
| 3605 | ppc64 binaries used different stubs to current code. | |
| 3606 | (b) is the tricky one since you need to known the toc | |
| 3607 | pointer for at least one function that uses a pic stub to | |
| 3608 | be able to calculate the plt address referenced. | |
| 3609 | (c) means gdb would need to set multiple breakpoints (or | |
| 3610 | find the glink branch itself) when setting breakpoints | |
| 3611 | for pending shared library loads. */ | |
| 3612 | p = relplt->relocation; | |
| 3613 | for (i = 0; i < plt_count; i++, p++) | |
| 3614 | { | |
| 3615 | size_t len; | |
| 3616 | ||
| 3617 | *s = **p->sym_ptr_ptr; | |
| 3618 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3619 | we are defining a symbol, ensure one of them is set. */ | |
| 3620 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3621 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3622 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3623 | s->section = glink; |
| 3624 | s->value = glink_vma - glink->vma; | |
| 3625 | s->name = names; | |
| 3626 | s->udata.p = NULL; | |
| 3627 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3628 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3629 | names += len; | |
| e054468f AM |
3630 | if (p->addend != 0) |
| 3631 | { | |
| 3632 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3633 | names += sizeof ("+0x") - 1; | |
| 3634 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3635 | names += strlen (names); | |
| 3636 | } | |
| 468392fb AM |
3637 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3638 | names += sizeof ("@plt"); | |
| 3639 | s++; | |
| b9e5796b AM |
3640 | if (abi < 2) |
| 3641 | { | |
| 3642 | glink_vma += 8; | |
| 3643 | if (i >= 0x8000) | |
| 3644 | glink_vma += 4; | |
| 3645 | } | |
| 3646 | else | |
| 468392fb AM |
3647 | glink_vma += 4; |
| 3648 | } | |
| 3649 | count += plt_count; | |
| 3650 | } | |
| 90e3cdf2 JJ |
3651 | } |
| 3652 | ||
| c9727e01 | 3653 | done: |
| a7535cf3 | 3654 | free (syms); |
| 90e3cdf2 JJ |
3655 | return count; |
| 3656 | } | |
| 5bd4f169 | 3657 | \f |
| 65f38f15 AM |
3658 | /* The following functions are specific to the ELF linker, while |
| 3659 | functions above are used generally. Those named ppc64_elf_* are | |
| 3660 | called by the main ELF linker code. They appear in this file more | |
| 3661 | or less in the order in which they are called. eg. | |
| 3662 | ppc64_elf_check_relocs is called early in the link process, | |
| 3663 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3664 | called. |
| 3665 | ||
| 3666 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3667 | functions have both a function code symbol and a function descriptor | |
| 3668 | symbol. A call to foo in a relocatable object file looks like: | |
| 3669 | ||
| 3670 | . .text | |
| 3671 | . x: | |
| 3672 | . bl .foo | |
| 3673 | . nop | |
| 3674 | ||
| 3675 | The function definition in another object file might be: | |
| 3676 | ||
| 3677 | . .section .opd | |
| 3678 | . foo: .quad .foo | |
| 3679 | . .quad .TOC.@tocbase | |
| 3680 | . .quad 0 | |
| 3681 | . | |
| 3682 | . .text | |
| 3683 | . .foo: blr | |
| 3684 | ||
| 3685 | When the linker resolves the call during a static link, the branch | |
| 3686 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3687 | If the function definition is in a shared library, things are a little | |
| 3688 | different: The call goes via a plt call stub, the opd information gets | |
| 3689 | copied to the plt, and the linker patches the nop. | |
| 3690 | ||
| 3691 | . x: | |
| 3692 | . bl .foo_stub | |
| 3693 | . ld 2,40(1) | |
| 3694 | . | |
| 3695 | . | |
| 3696 | . .foo_stub: | |
| 71a39c98 AM |
3697 | . std 2,40(1) # in practice, the call stub |
| 3698 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3699 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3700 | . ld 12,0(11) | |
| 3701 | . ld 2,8(11) | |
| 3702 | . mtctr 12 | |
| 3703 | . ld 11,16(11) | |
| e86ce104 AM |
3704 | . bctr |
| 3705 | . | |
| 3706 | . .section .plt | |
| 3707 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3708 | ||
| 3709 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3710 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3711 | copying. | |
| 3712 | ||
| 3713 | What are the difficulties here? Well, firstly, the relocations | |
| 3714 | examined by the linker in check_relocs are against the function code | |
| 3715 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3716 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3717 | to carefully copy dynamic link information from one symbol to the other. | |
| 3718 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3719 | symbol as is normal for most other backends. We need foo dynamic | |
| 3720 | instead, at least for an application final link. However, when | |
| 3721 | creating a shared library containing foo, we need to have both symbols | |
| 3722 | dynamic so that references to .foo are satisfied during the early | |
| 3723 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3724 | definition from some other object, eg. a static library. |
| 3725 | ||
| 3726 | Update: As of August 2004, we support a new convention. Function | |
| 3727 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3728 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3729 | |
| 1d483afe | 3730 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3731 | selects those that must be copied when linking a shared library, |
| 3732 | even when the symbol is local. */ | |
| 65f38f15 | 3733 | |
| 1d483afe AM |
3734 | static int |
| 3735 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3736 | enum elf_ppc64_reloc_type r_type) | |
| 3737 | { | |
| 3738 | switch (r_type) | |
| 3739 | { | |
| 3740 | default: | |
| 3741 | return 1; | |
| 3742 | ||
| 3743 | case R_PPC64_REL32: | |
| 3744 | case R_PPC64_REL64: | |
| 3745 | case R_PPC64_REL30: | |
| 3746 | return 0; | |
| 3747 | ||
| 3748 | case R_PPC64_TPREL16: | |
| 3749 | case R_PPC64_TPREL16_LO: | |
| 3750 | case R_PPC64_TPREL16_HI: | |
| 3751 | case R_PPC64_TPREL16_HA: | |
| 3752 | case R_PPC64_TPREL16_DS: | |
| 3753 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3754 | case R_PPC64_TPREL16_HIGH: |
| 3755 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3756 | case R_PPC64_TPREL16_HIGHER: |
| 3757 | case R_PPC64_TPREL16_HIGHERA: | |
| 3758 | case R_PPC64_TPREL16_HIGHEST: | |
| 3759 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3760 | case R_PPC64_TPREL64: | |
| 0e1862bb | 3761 | return !bfd_link_executable (info); |
| 1d483afe AM |
3762 | } |
| 3763 | } | |
| 65f38f15 | 3764 | |
| f4656909 AM |
3765 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3766 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3767 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3768 | shared lib. With code that gcc generates, it's vital that this be |
| 3769 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3770 | the address of a function descriptor, which resides in the .opd | |
| 3771 | section. gcc uses the descriptor directly rather than going via the | |
| 3772 | GOT as some other ABI's do, which means that initialized function | |
| 3773 | pointers must reference the descriptor. Thus, a function pointer | |
| 3774 | initialized to the address of a function in a shared library will | |
| 3775 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3776 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3777 | presents a problem as a plt entry for that function is also |
| 3778 | initialized from the function descriptor symbol and the copy reloc | |
| 3779 | may not be initialized first. */ | |
| a23b6845 | 3780 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3781 | |
| 721956f4 | 3782 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3783 | string. */ |
| 3784 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3785 | |
| 3786 | /* Linker stubs. | |
| 3787 | ppc_stub_long_branch: | |
| 3788 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3789 | destination, but a 24 bit branch in a stub section will reach. | |
| 3790 | . b dest | |
| 3791 | ||
| 3792 | ppc_stub_plt_branch: | |
| 3793 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3794 | reach its destination. | |
| 71a39c98 AM |
3795 | . addis %r11,%r2,xxx@toc@ha |
| 3796 | . ld %r12,xxx@toc@l(%r11) | |
| 3797 | . mtctr %r12 | |
| 721956f4 AM |
3798 | . bctr |
| 3799 | ||
| 3800 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3801 | Used to call a function in a shared library. If it so happens that |
| 3802 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3803 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3804 | . std %r2,40(%r1) |
| 71a39c98 AM |
3805 | . addis %r11,%r2,xxx@toc@ha |
| 3806 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3807 | . mtctr %r12 | |
| 3808 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3809 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3810 | . bctr |
| ad8e1ba5 AM |
3811 | |
| 3812 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3813 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3814 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3815 | . std %r2,40(%r1) | |
| 3816 | . addis %r2,%r2,off@ha | |
| 3817 | . addi %r2,%r2,off@l | |
| 3818 | . b dest | |
| 3819 | ||
| 3820 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3821 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3822 | . addis %r11,%r2,xxx@toc@ha |
| 3823 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3824 | . addis %r2,%r2,off@ha |
| 3825 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3826 | . mtctr %r12 |
| ad8e1ba5 | 3827 | . bctr |
| ac2df442 AM |
3828 | |
| 3829 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3830 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3831 | */ |
| 3832 | ||
| 3833 | enum ppc_stub_type { | |
| 3834 | ppc_stub_none, | |
| 3835 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3836 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3837 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3838 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3839 | ppc_stub_plt_call, |
| 7341d5e2 | 3840 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3841 | ppc_stub_global_entry, |
| 3842 | ppc_stub_save_res | |
| 721956f4 AM |
3843 | }; |
| 3844 | ||
| 6f20ed8a AM |
3845 | /* Information on stub grouping. */ |
| 3846 | struct map_stub | |
| 3847 | { | |
| 3848 | /* The stub section. */ | |
| 3849 | asection *stub_sec; | |
| 3850 | /* This is the section to which stubs in the group will be attached. */ | |
| 3851 | asection *link_sec; | |
| a4b6fadd AM |
3852 | /* Next group. */ |
| 3853 | struct map_stub *next; | |
| 3854 | /* Whether to emit a copy of register save/restore functions in this | |
| 3855 | group. */ | |
| 3856 | int needs_save_res; | |
| 6f20ed8a AM |
3857 | }; |
| 3858 | ||
| 721956f4 AM |
3859 | struct ppc_stub_hash_entry { |
| 3860 | ||
| 3861 | /* Base hash table entry structure. */ | |
| 3862 | struct bfd_hash_entry root; | |
| 3863 | ||
| ad8e1ba5 AM |
3864 | enum ppc_stub_type stub_type; |
| 3865 | ||
| 6f20ed8a AM |
3866 | /* Group information. */ |
| 3867 | struct map_stub *group; | |
| 721956f4 AM |
3868 | |
| 3869 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3870 | bfd_vma stub_offset; | |
| 3871 | ||
| 3872 | /* Given the symbol's value and its section we can determine its final | |
| 3873 | value when building the stubs (so the stub knows where to jump. */ | |
| 3874 | bfd_vma target_value; | |
| 3875 | asection *target_section; | |
| 3876 | ||
| 721956f4 AM |
3877 | /* The symbol table entry, if any, that this was derived from. */ |
| 3878 | struct ppc_link_hash_entry *h; | |
| e054468f | 3879 | struct plt_entry *plt_ent; |
| 721956f4 | 3880 | |
| 6911b7dc AM |
3881 | /* Symbol st_other. */ |
| 3882 | unsigned char other; | |
| 721956f4 AM |
3883 | }; |
| 3884 | ||
| 3885 | struct ppc_branch_hash_entry { | |
| 3886 | ||
| 3887 | /* Base hash table entry structure. */ | |
| 3888 | struct bfd_hash_entry root; | |
| 3889 | ||
| c456f082 | 3890 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3891 | unsigned int offset; |
| 3892 | ||
| 3893 | /* Generation marker. */ | |
| 3894 | unsigned int iter; | |
| 3895 | }; | |
| 65f38f15 | 3896 | |
| 19e08130 AM |
3897 | /* Used to track dynamic relocations for local symbols. */ |
| 3898 | struct ppc_dyn_relocs | |
| 3899 | { | |
| 3900 | struct ppc_dyn_relocs *next; | |
| 3901 | ||
| 3902 | /* The input section of the reloc. */ | |
| 3903 | asection *sec; | |
| 3904 | ||
| 3905 | /* Total number of relocs copied for the input section. */ | |
| 3906 | unsigned int count : 31; | |
| 3907 | ||
| 3908 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3909 | unsigned int ifunc : 1; | |
| 3910 | }; | |
| 3911 | ||
| 65f38f15 AM |
3912 | struct ppc_link_hash_entry |
| 3913 | { | |
| 3914 | struct elf_link_hash_entry elf; | |
| 3915 | ||
| b3fac117 AM |
3916 | union { |
| 3917 | /* A pointer to the most recently used stub hash entry against this | |
| 3918 | symbol. */ | |
| 3919 | struct ppc_stub_hash_entry *stub_cache; | |
| 3920 | ||
| 3921 | /* A pointer to the next symbol starting with a '.' */ | |
| 3922 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3923 | } u; | |
| 721956f4 | 3924 | |
| 65f38f15 | 3925 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3926 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3927 | |
| 721956f4 | 3928 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3929 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3930 | |
| e86ce104 AM |
3931 | /* Flag function code and descriptor symbols. */ |
| 3932 | unsigned int is_func:1; | |
| 3933 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3934 | unsigned int fake:1; |
| 411e1bfb | 3935 | |
| c5614fa4 AM |
3936 | /* Whether global opd/toc sym has been adjusted or not. |
| 3937 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3938 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3939 | unsigned int adjust_done:1; |
| 3940 | ||
| 99877b66 AM |
3941 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3942 | unsigned int was_undefined:1; | |
| 3943 | ||
| a4b6fadd AM |
3944 | /* Set if this is an out-of-line register save/restore function, |
| 3945 | with non-standard calling convention. */ | |
| 3946 | unsigned int save_res:1; | |
| 3947 | ||
| 411e1bfb | 3948 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3949 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3950 | corresponding relocs are encountered during check_relocs. | |
| 3951 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3952 | indicate the corresponding GOT entry type is not needed. | |
| 3953 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3954 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3955 | just for convenience in distinguishing the two cases. */ | |
| 3956 | #define TLS_GD 1 /* GD reloc. */ | |
| 3957 | #define TLS_LD 2 /* LD reloc. */ | |
| 3958 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3959 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3960 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 3961 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 3962 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 3963 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 3964 | unsigned char tls_mask; |
| 65f38f15 AM |
3965 | }; |
| 3966 | ||
| 3967 | /* ppc64 ELF linker hash table. */ | |
| 3968 | ||
| 3969 | struct ppc_link_hash_table | |
| 3970 | { | |
| 3971 | struct elf_link_hash_table elf; | |
| 3972 | ||
| 721956f4 AM |
3973 | /* The stub hash table. */ |
| 3974 | struct bfd_hash_table stub_hash_table; | |
| 3975 | ||
| 3976 | /* Another hash table for plt_branch stubs. */ | |
| 3977 | struct bfd_hash_table branch_hash_table; | |
| 3978 | ||
| 3b421ab3 AM |
3979 | /* Hash table for function prologue tocsave. */ |
| 3980 | htab_t tocsave_htab; | |
| 3981 | ||
| e7d1c40c AM |
3982 | /* Various options and other info passed from the linker. */ |
| 3983 | struct ppc64_elf_params *params; | |
| 721956f4 | 3984 | |
| 6f20ed8a AM |
3985 | /* The size of sec_info below. */ |
| 3986 | unsigned int sec_info_arr_size; | |
| 3987 | ||
| 3988 | /* Per-section array of extra section info. Done this way rather | |
| 3989 | than as part of ppc64_elf_section_data so we have the info for | |
| 3990 | non-ppc64 sections. */ | |
| 3991 | struct | |
| 3992 | { | |
| 3993 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 3994 | bfd_vma toc_off; |
| 6f20ed8a AM |
3995 | |
| 3996 | union | |
| 3997 | { | |
| 3998 | /* The section group that this section belongs to. */ | |
| 3999 | struct map_stub *group; | |
| 4000 | /* A temp section list pointer. */ | |
| 4001 | asection *list; | |
| 4002 | } u; | |
| 4003 | } *sec_info; | |
| 721956f4 | 4004 | |
| a4b6fadd AM |
4005 | /* Linked list of groups. */ |
| 4006 | struct map_stub *group; | |
| 4007 | ||
| ad8e1ba5 AM |
4008 | /* Temp used when calculating TOC pointers. */ |
| 4009 | bfd_vma toc_curr; | |
| bf102f86 AM |
4010 | bfd *toc_bfd; |
| 4011 | asection *toc_first_sec; | |
| ad8e1ba5 | 4012 | |
| b3fac117 AM |
4013 | /* Used when adding symbols. */ |
| 4014 | struct ppc_link_hash_entry *dot_syms; | |
| 4015 | ||
| 33e44f2e | 4016 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 AM |
4017 | asection *dynbss; |
| 4018 | asection *relbss; | |
| 4019 | asection *glink; | |
| 82bd7b59 | 4020 | asection *sfpr; |
| 4ce794b7 AM |
4021 | asection *brlt; |
| 4022 | asection *relbrlt; | |
| 58d180e8 | 4023 | asection *glink_eh_frame; |
| ec338859 | 4024 | |
| 8387904d AM |
4025 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4026 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4027 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4028 | |
| 927be08e AM |
4029 | /* The size of reliplt used by got entry relocs. */ |
| 4030 | bfd_size_type got_reli_size; | |
| 4031 | ||
| 9b5ecbd0 | 4032 | /* Statistics. */ |
| 7341d5e2 | 4033 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4034 | |
| ee75fd95 AM |
4035 | /* Number of stubs against global syms. */ |
| 4036 | unsigned long stub_globals; | |
| 4037 | ||
| ee67d69a AM |
4038 | /* Set if we're linking code with function descriptors. */ |
| 4039 | unsigned int opd_abi:1; | |
| 4040 | ||
| 4c52953f | 4041 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4042 | unsigned int do_multi_toc:1; |
| 4c52953f | 4043 | unsigned int multi_toc_needed:1; |
| 927be08e | 4044 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4045 | unsigned int do_toc_opt:1; |
| 4c52953f | 4046 | |
| 5d1634d7 | 4047 | /* Set on error. */ |
| 99877b66 | 4048 | unsigned int stub_error:1; |
| 721956f4 | 4049 | |
| f6c7c3e8 | 4050 | /* Temp used by ppc64_elf_before_check_relocs. */ |
| 99877b66 | 4051 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
4052 | |
| 4053 | /* Incremented every time we size stubs. */ | |
| 4054 | unsigned int stub_iteration; | |
| 5d1634d7 | 4055 | |
| 87d72d41 AM |
4056 | /* Small local sym cache. */ |
| 4057 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4058 | }; |
| 4059 | ||
| 4c52953f AM |
4060 | /* Rename some of the generic section flags to better document how they |
| 4061 | are used here. */ | |
| b0dddeec AM |
4062 | |
| 4063 | /* Nonzero if this section has TLS related relocations. */ | |
| 4064 | #define has_tls_reloc sec_flg0 | |
| 4065 | ||
| 4066 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4067 | #define has_tls_get_addr_call sec_flg1 | |
| 4068 | ||
| 4069 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4070 | #define has_toc_reloc sec_flg2 | |
| 4071 | ||
| 4072 | /* Nonzero if this section has a call to another section that uses | |
| 4073 | the toc or got. */ | |
| d77c8a4b | 4074 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4075 | |
| 4076 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4077 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4078 | #define call_check_done sec_flg5 |
| 4c52953f | 4079 | |
| 65f38f15 AM |
4080 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4081 | ||
| 4082 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4083 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4084 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4085 | |
| 721956f4 AM |
4086 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4087 | ((struct ppc_stub_hash_entry *) \ | |
| 4088 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4089 | ||
| 4090 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4091 | ((struct ppc_branch_hash_entry *) \ | |
| 4092 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4093 | ||
| 4094 | /* Create an entry in the stub hash table. */ | |
| 4095 | ||
| 4096 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4097 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4098 | struct bfd_hash_table *table, | |
| 4099 | const char *string) | |
| 721956f4 AM |
4100 | { |
| 4101 | /* Allocate the structure if it has not already been allocated by a | |
| 4102 | subclass. */ | |
| 4103 | if (entry == NULL) | |
| 4104 | { | |
| 4105 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4106 | if (entry == NULL) | |
| 4107 | return entry; | |
| 4108 | } | |
| 4109 | ||
| 4110 | /* Call the allocation method of the superclass. */ | |
| 4111 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4112 | if (entry != NULL) | |
| 4113 | { | |
| 4114 | struct ppc_stub_hash_entry *eh; | |
| 4115 | ||
| 4116 | /* Initialize the local fields. */ | |
| 4117 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4118 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4119 | eh->group = NULL; |
| 721956f4 AM |
4120 | eh->stub_offset = 0; |
| 4121 | eh->target_value = 0; | |
| 4122 | eh->target_section = NULL; | |
| 721956f4 | 4123 | eh->h = NULL; |
| 6911b7dc | 4124 | eh->plt_ent = NULL; |
| 6911b7dc | 4125 | eh->other = 0; |
| 721956f4 AM |
4126 | } |
| 4127 | ||
| 4128 | return entry; | |
| 4129 | } | |
| 4130 | ||
| 4131 | /* Create an entry in the branch hash table. */ | |
| 4132 | ||
| 4133 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4134 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4135 | struct bfd_hash_table *table, | |
| 4136 | const char *string) | |
| 721956f4 AM |
4137 | { |
| 4138 | /* Allocate the structure if it has not already been allocated by a | |
| 4139 | subclass. */ | |
| 4140 | if (entry == NULL) | |
| 4141 | { | |
| 4142 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4143 | if (entry == NULL) | |
| 4144 | return entry; | |
| 4145 | } | |
| 4146 | ||
| 4147 | /* Call the allocation method of the superclass. */ | |
| 4148 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4149 | if (entry != NULL) | |
| 4150 | { | |
| 4151 | struct ppc_branch_hash_entry *eh; | |
| 4152 | ||
| 4153 | /* Initialize the local fields. */ | |
| 4154 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4155 | eh->offset = 0; | |
| 4156 | eh->iter = 0; | |
| 4157 | } | |
| 4158 | ||
| 4159 | return entry; | |
| 4160 | } | |
| 4161 | ||
| 65f38f15 AM |
4162 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4163 | ||
| 4164 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4165 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4166 | struct bfd_hash_table *table, | |
| 4167 | const char *string) | |
| 65f38f15 AM |
4168 | { |
| 4169 | /* Allocate the structure if it has not already been allocated by a | |
| 4170 | subclass. */ | |
| 4171 | if (entry == NULL) | |
| 4172 | { | |
| 4173 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4174 | if (entry == NULL) | |
| 4175 | return entry; | |
| 4176 | } | |
| 4177 | ||
| 4178 | /* Call the allocation method of the superclass. */ | |
| 4179 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4180 | if (entry != NULL) | |
| 4181 | { | |
| 4182 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4183 | ||
| b3fac117 | 4184 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4185 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4186 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4187 | ||
| 4188 | /* When making function calls, old ABI code references function entry | |
| 4189 | points (dot symbols), while new ABI code references the function | |
| 4190 | descriptor symbol. We need to make any combination of reference and | |
| 4191 | definition work together, without breaking archive linking. | |
| 4192 | ||
| 4193 | For a defined function "foo" and an undefined call to "bar": | |
| 4194 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4195 | "bar" too). | |
| 4196 | A new object defines "foo" and references "bar". | |
| 4197 | ||
| 4198 | A new object thus has no problem with its undefined symbols being | |
| 4199 | satisfied by definitions in an old object. On the other hand, the | |
| 4200 | old object won't have ".bar" satisfied by a new object. | |
| 4201 | ||
| 4202 | Keep a list of newly added dot-symbols. */ | |
| 4203 | ||
| 4204 | if (string[0] == '.') | |
| 4205 | { | |
| 4206 | struct ppc_link_hash_table *htab; | |
| 4207 | ||
| 4208 | htab = (struct ppc_link_hash_table *) table; | |
| 4209 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4210 | htab->dot_syms = eh; | |
| 4211 | } | |
| 65f38f15 AM |
4212 | } |
| 4213 | ||
| 4214 | return entry; | |
| 4215 | } | |
| 4216 | ||
| 3b421ab3 AM |
4217 | struct tocsave_entry { |
| 4218 | asection *sec; | |
| 4219 | bfd_vma offset; | |
| 4220 | }; | |
| 4221 | ||
| 4222 | static hashval_t | |
| 4223 | tocsave_htab_hash (const void *p) | |
| 4224 | { | |
| 4225 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4226 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4227 | } | |
| 4228 | ||
| 4229 | static int | |
| 4230 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4231 | { | |
| 4232 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4233 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4234 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4235 | } | |
| 4236 | ||
| 68faa637 AM |
4237 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4238 | ||
| 4239 | static void | |
| d495ab0d | 4240 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4241 | { |
| d495ab0d | 4242 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4243 | |
| d495ab0d | 4244 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4245 | if (htab->tocsave_htab) |
| 4246 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4247 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4248 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4249 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4250 | } |
| 4251 | ||
| 65f38f15 AM |
4252 | /* Create a ppc64 ELF linker hash table. */ |
| 4253 | ||
| 4254 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4255 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4256 | { |
| 4257 | struct ppc_link_hash_table *htab; | |
| 4258 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4259 | ||
| 4ce794b7 | 4260 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4261 | if (htab == NULL) |
| 4262 | return NULL; | |
| 4263 | ||
| 66eb6687 | 4264 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4265 | sizeof (struct ppc_link_hash_entry), |
| 4266 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4267 | { |
| e2d34d7d | 4268 | free (htab); |
| 65f38f15 AM |
4269 | return NULL; |
| 4270 | } | |
| 4271 | ||
| 721956f4 | 4272 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4273 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4274 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4275 | { |
| d495ab0d | 4276 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4277 | return NULL; |
| 4278 | } | |
| 721956f4 AM |
4279 | |
| 4280 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4281 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4282 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4283 | { |
| 4284 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4285 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4286 | return NULL; |
| 4287 | } | |
| 721956f4 | 4288 | |
| 3b421ab3 AM |
4289 | htab->tocsave_htab = htab_try_create (1024, |
| 4290 | tocsave_htab_hash, | |
| 4291 | tocsave_htab_eq, | |
| 4292 | NULL); | |
| 4293 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4294 | { |
| d495ab0d | 4295 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4296 | return NULL; |
| 4297 | } | |
| d495ab0d | 4298 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4299 | |
| 3254fd24 AM |
4300 | /* Initializing two fields of the union is just cosmetic. We really |
| 4301 | only care about glist, but when compiled on a 32-bit host the | |
| 4302 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4303 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4304 | htab->elf.init_got_refcount.refcount = 0; |
| 4305 | htab->elf.init_got_refcount.glist = NULL; | |
| 4306 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4307 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4308 | htab->elf.init_got_offset.offset = 0; | |
| 4309 | htab->elf.init_got_offset.glist = NULL; | |
| 4310 | htab->elf.init_plt_offset.offset = 0; | |
| 4311 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4312 | |
| 65f38f15 AM |
4313 | return &htab->elf.root; |
| 4314 | } | |
| 4315 | ||
| bfeb4a28 AM |
4316 | /* Create sections for linker generated code. */ |
| 4317 | ||
| 4318 | static bfd_boolean | |
| 4319 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4320 | { | |
| 4321 | struct ppc_link_hash_table *htab; | |
| 4322 | flagword flags; | |
| 4323 | ||
| 4324 | htab = ppc_hash_table (info); | |
| 4325 | ||
| 4326 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4327 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
| 4328 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4329 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4330 | flags); | |
| 4331 | if (htab->sfpr == NULL | |
| 4332 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4333 | return FALSE; | |
| 4334 | ||
| 4335 | /* Create .glink for lazy dynamic linking support. */ | |
| 4336 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4337 | flags); | |
| 4338 | if (htab->glink == NULL | |
| 4339 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4340 | return FALSE; | |
| 4341 | ||
| 4342 | if (!info->no_ld_generated_unwind_info) | |
| 4343 | { | |
| 4344 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4345 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4346 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4347 | ".eh_frame", | |
| 4348 | flags); | |
| 4349 | if (htab->glink_eh_frame == NULL | |
| 4350 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4351 | return FALSE; | |
| 4352 | } | |
| 4353 | ||
| 4354 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4355 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4356 | if (htab->elf.iplt == NULL | |
| 4357 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4358 | return FALSE; |
| 4359 | ||
| 4360 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4361 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4362 | htab->elf.irelplt |
| 4363 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4364 | if (htab->elf.irelplt == NULL | |
| 4365 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4366 | return FALSE; |
| 4367 | ||
| 4368 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4369 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4370 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4371 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4372 | flags); | |
| 4373 | if (htab->brlt == NULL | |
| 4374 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4375 | return FALSE; | |
| 4376 | ||
| 0e1862bb | 4377 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4378 | return TRUE; |
| 4379 | ||
| 4380 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4381 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4382 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4383 | ".rela.branch_lt", | |
| 4384 | flags); | |
| 4385 | if (htab->relbrlt == NULL | |
| 4386 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4387 | return FALSE; | |
| 4388 | ||
| 4389 | return TRUE; | |
| 4390 | } | |
| 4391 | ||
| e717da7e AM |
4392 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4393 | ||
| bfeb4a28 | 4394 | bfd_boolean |
| e7d1c40c AM |
4395 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4396 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4397 | { |
| 4398 | struct ppc_link_hash_table *htab; | |
| 4399 | ||
| e7d1c40c | 4400 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4401 | |
| 4402 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4403 | linker created stub bfd. This ensures that the GOT header is at | |
| 4404 | the start of the output TOC section. */ | |
| 4405 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4406 | if (htab == NULL) |
| bfeb4a28 | 4407 | return FALSE; |
| e7d1c40c AM |
4408 | htab->elf.dynobj = params->stub_bfd; |
| 4409 | htab->params = params; | |
| bfeb4a28 | 4410 | |
| 0e1862bb | 4411 | if (bfd_link_relocatable (info)) |
| bfeb4a28 AM |
4412 | return TRUE; |
| 4413 | ||
| 4414 | return create_linkage_sections (htab->elf.dynobj, info); | |
| e717da7e AM |
4415 | } |
| 4416 | ||
| 721956f4 AM |
4417 | /* Build a name for an entry in the stub hash table. */ |
| 4418 | ||
| 4419 | static char * | |
| 4ce794b7 AM |
4420 | ppc_stub_name (const asection *input_section, |
| 4421 | const asection *sym_sec, | |
| 4422 | const struct ppc_link_hash_entry *h, | |
| 4423 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4424 | { |
| 4425 | char *stub_name; | |
| bcaa2f82 | 4426 | ssize_t len; |
| 721956f4 AM |
4427 | |
| 4428 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4429 | offsets from a sym as a branch target? In fact, we could | |
| 4430 | probably assume the addend is always zero. */ | |
| 4431 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4432 | ||
| 4433 | if (h) | |
| 4434 | { | |
| 4435 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4436 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4437 | if (stub_name == NULL) |
| 4438 | return stub_name; | |
| 4439 | ||
| bcaa2f82 AM |
4440 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4441 | input_section->id & 0xffffffff, | |
| 4442 | h->elf.root.root.string, | |
| 4443 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4444 | } |
| 4445 | else | |
| 4446 | { | |
| ad8e1ba5 | 4447 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4448 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4449 | if (stub_name == NULL) |
| 4450 | return stub_name; | |
| 4451 | ||
| bcaa2f82 AM |
4452 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4453 | input_section->id & 0xffffffff, | |
| 4454 | sym_sec->id & 0xffffffff, | |
| 4455 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4456 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4457 | } |
| bcaa2f82 | 4458 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4459 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4460 | return stub_name; |
| 4461 | } | |
| 4462 | ||
| 4463 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4464 | creating the stub name takes a bit of time. */ | |
| 4465 | ||
| 4466 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4467 | ppc_get_stub_entry (const asection *input_section, |
| 4468 | const asection *sym_sec, | |
| 039b3fef | 4469 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4470 | const Elf_Internal_Rela *rel, |
| 4471 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4472 | { |
| 4473 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4474 | struct map_stub *group; |
| 721956f4 AM |
4475 | |
| 4476 | /* If this input section is part of a group of sections sharing one | |
| 4477 | stub section, then use the id of the first section in the group. | |
| 4478 | Stub names need to include a section id, as there may well be | |
| 4479 | more than one stub used to reach say, printf, and we need to | |
| 4480 | distinguish between them. */ | |
| 6f20ed8a | 4481 | group = htab->sec_info[input_section->id].u.group; |
| 721956f4 | 4482 | |
| b3fac117 AM |
4483 | if (h != NULL && h->u.stub_cache != NULL |
| 4484 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4485 | && h->u.stub_cache->group == group) |
| 721956f4 | 4486 | { |
| b3fac117 | 4487 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4488 | } |
| 4489 | else | |
| 4490 | { | |
| 4491 | char *stub_name; | |
| 4492 | ||
| 6f20ed8a | 4493 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4494 | if (stub_name == NULL) |
| 4495 | return NULL; | |
| 4496 | ||
| 4497 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4498 | stub_name, FALSE, FALSE); |
| 721956f4 | 4499 | if (h != NULL) |
| b3fac117 | 4500 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4501 | |
| 4502 | free (stub_name); | |
| 4503 | } | |
| 4504 | ||
| 4505 | return stub_entry; | |
| 4506 | } | |
| 4507 | ||
| 4508 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4509 | stub entry are initialised. */ | |
| 4510 | ||
| 4511 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4512 | ppc_add_stub (const char *stub_name, |
| 4513 | asection *section, | |
| 25f53a85 | 4514 | struct bfd_link_info *info) |
| 721956f4 | 4515 | { |
| 25f53a85 | 4516 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4517 | struct map_stub *group; |
| 721956f4 AM |
4518 | asection *link_sec; |
| 4519 | asection *stub_sec; | |
| 4520 | struct ppc_stub_hash_entry *stub_entry; | |
| 4521 | ||
| 6f20ed8a AM |
4522 | group = htab->sec_info[section->id].u.group; |
| 4523 | link_sec = group->link_sec; | |
| 4524 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4525 | if (stub_sec == NULL) |
| 4526 | { | |
| 6f20ed8a AM |
4527 | size_t namelen; |
| 4528 | bfd_size_type len; | |
| 4529 | char *s_name; | |
| 721956f4 | 4530 | |
| 6f20ed8a AM |
4531 | namelen = strlen (link_sec->name); |
| 4532 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4533 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4534 | if (s_name == NULL) | |
| 4535 | return NULL; | |
| 721956f4 | 4536 | |
| 6f20ed8a AM |
4537 | memcpy (s_name, link_sec->name, namelen); |
| 4538 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4539 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4540 | if (stub_sec == NULL) | |
| 4541 | return NULL; | |
| 4542 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4543 | } |
| 4544 | ||
| 4545 | /* Enter this entry into the linker stub hash table. */ | |
| 4546 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4547 | TRUE, FALSE); |
| 721956f4 AM |
4548 | if (stub_entry == NULL) |
| 4549 | { | |
| 8de848d8 | 4550 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4551 | section->owner, stub_name); |
| 721956f4 AM |
4552 | return NULL; |
| 4553 | } | |
| 4554 | ||
| 6f20ed8a | 4555 | stub_entry->group = group; |
| 721956f4 | 4556 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4557 | return stub_entry; |
| 4558 | } | |
| 4559 | ||
| e717da7e AM |
4560 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4561 | not already done. */ | |
| 65f38f15 | 4562 | |
| b34976b6 | 4563 | static bfd_boolean |
| e717da7e | 4564 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4565 | { |
| e717da7e AM |
4566 | asection *got, *relgot; |
| 4567 | flagword flags; | |
| 4568 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4569 | |
| 0c8d6e5c | 4570 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4571 | return FALSE; |
| 4dfe6ac6 NC |
4572 | if (htab == NULL) |
| 4573 | return FALSE; | |
| 0ffa91dd | 4574 | |
| 33e44f2e AM |
4575 | if (!htab->elf.sgot |
| 4576 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4577 | return FALSE; | |
| e717da7e AM |
4578 | |
| 4579 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4580 | | SEC_LINKER_CREATED); | |
| 4581 | ||
| c456f082 | 4582 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4583 | if (!got |
| e717da7e AM |
4584 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4585 | return FALSE; | |
| 65f38f15 | 4586 | |
| c456f082 AM |
4587 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4588 | flags | SEC_READONLY); | |
| e717da7e | 4589 | if (!relgot |
| e717da7e | 4590 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4591 | return FALSE; |
| e717da7e AM |
4592 | |
| 4593 | ppc64_elf_tdata (abfd)->got = got; | |
| 4594 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4595 | return TRUE; |
| 65f38f15 | 4596 | } |
| 5bd4f169 | 4597 | |
| 82bd7b59 | 4598 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4599 | |
| b34976b6 | 4600 | static bfd_boolean |
| 4ce794b7 | 4601 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4602 | { |
| 65f38f15 | 4603 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4604 | |
| 65f38f15 | 4605 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4606 | return FALSE; |
| 65f38f15 | 4607 | |
| e717da7e | 4608 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4609 | if (htab == NULL) |
| 4610 | return FALSE; | |
| 4611 | ||
| 3d4d4302 | 4612 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
| 0e1862bb | 4613 | if (!bfd_link_pic (info)) |
| 3d4d4302 | 4614 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4615 | |
| 33e44f2e | 4616 | if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss |
| 0e1862bb | 4617 | || (!bfd_link_pic (info) && !htab->relbss)) |
| 65f38f15 AM |
4618 | abort (); |
| 4619 | ||
| b34976b6 | 4620 | return TRUE; |
| 5bd4f169 AM |
4621 | } |
| 4622 | ||
| b31867b6 AM |
4623 | /* Follow indirect and warning symbol links. */ |
| 4624 | ||
| 4625 | static inline struct bfd_link_hash_entry * | |
| 4626 | follow_link (struct bfd_link_hash_entry *h) | |
| 4627 | { | |
| 4628 | while (h->type == bfd_link_hash_indirect | |
| 4629 | || h->type == bfd_link_hash_warning) | |
| 4630 | h = h->u.i.link; | |
| 4631 | return h; | |
| 4632 | } | |
| 4633 | ||
| 4634 | static inline struct elf_link_hash_entry * | |
| 4635 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4636 | { | |
| 4637 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4638 | } | |
| 4639 | ||
| 4640 | static inline struct ppc_link_hash_entry * | |
| 4641 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4642 | { | |
| 4643 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4644 | } | |
| 4645 | ||
| 40d16e0b AM |
4646 | /* Merge PLT info on FROM with that on TO. */ |
| 4647 | ||
| 4648 | static void | |
| 4649 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4650 | struct ppc_link_hash_entry *to) | |
| 4651 | { | |
| 4652 | if (from->elf.plt.plist != NULL) | |
| 4653 | { | |
| 4654 | if (to->elf.plt.plist != NULL) | |
| 4655 | { | |
| 4656 | struct plt_entry **entp; | |
| 4657 | struct plt_entry *ent; | |
| 4658 | ||
| 4659 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4660 | { | |
| 4661 | struct plt_entry *dent; | |
| 4662 | ||
| 4663 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4664 | if (dent->addend == ent->addend) | |
| 4665 | { | |
| 4666 | dent->plt.refcount += ent->plt.refcount; | |
| 4667 | *entp = ent->next; | |
| 4668 | break; | |
| 4669 | } | |
| 4670 | if (dent == NULL) | |
| 4671 | entp = &ent->next; | |
| 4672 | } | |
| 4673 | *entp = to->elf.plt.plist; | |
| 4674 | } | |
| 4675 | ||
| 4676 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4677 | from->elf.plt.plist = NULL; | |
| 4678 | } | |
| 4679 | } | |
| 4680 | ||
| 65f38f15 AM |
4681 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4682 | ||
| 4683 | static void | |
| fcfa13d2 AM |
4684 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4685 | struct elf_link_hash_entry *dir, | |
| 4686 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4687 | { |
| 4688 | struct ppc_link_hash_entry *edir, *eind; | |
| 4689 | ||
| 4690 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4691 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4692 | ||
| c79d6685 AM |
4693 | edir->is_func |= eind->is_func; |
| 4694 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4695 | edir->tls_mask |= eind->tls_mask; | |
| 4696 | if (eind->oh != NULL) | |
| 4697 | edir->oh = ppc_follow_link (eind->oh); | |
| 4698 | ||
| 4699 | /* If called to transfer flags for a weakdef during processing | |
| 4700 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4701 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4702 | if (!(ELIMINATE_COPY_RELOCS | |
| 4703 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4704 | && edir->elf.dynamic_adjusted)) | |
| 4705 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4706 | ||
| 4707 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4708 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4709 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4710 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| a345bc8d | 4711 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; |
| c79d6685 | 4712 | |
| 411e1bfb | 4713 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4714 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4715 | { |
| bbd7ec4a AM |
4716 | if (edir->dyn_relocs != NULL) |
| 4717 | { | |
| 6061a67d AM |
4718 | struct elf_dyn_relocs **pp; |
| 4719 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4720 | |
| fcfa13d2 | 4721 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4722 | list. Merge any entries against the same section. */ |
| 4723 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4724 | { | |
| 6061a67d | 4725 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4726 | |
| 4727 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4728 | if (q->sec == p->sec) | |
| 4729 | { | |
| 4730 | q->pc_count += p->pc_count; | |
| 4731 | q->count += p->count; | |
| 4732 | *pp = p->next; | |
| 4733 | break; | |
| 4734 | } | |
| 4735 | if (q == NULL) | |
| 4736 | pp = &p->next; | |
| 4737 | } | |
| 4738 | *pp = edir->dyn_relocs; | |
| 4739 | } | |
| 4740 | ||
| 65f38f15 AM |
4741 | edir->dyn_relocs = eind->dyn_relocs; |
| 4742 | eind->dyn_relocs = NULL; | |
| 4743 | } | |
| 65f38f15 | 4744 | |
| 68ba6d40 AM |
4745 | /* If we were called to copy over info for a weak sym, that's all. |
| 4746 | You might think dyn_relocs need not be copied over; After all, | |
| 4747 | both syms will be dynamic or both non-dynamic so we're just | |
| 68ffbac6 | 4748 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
| 68ba6d40 AM |
4749 | code in ppc64_elf_adjust_dynamic_symbol needs to check for |
| 4750 | dyn_relocs in read-only sections, and it does so on what is the | |
| 4751 | DIR sym here. */ | |
| 4752 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4753 | return; | |
| 4754 | ||
| 81848ca0 AM |
4755 | /* Copy over got entries that we may have already seen to the |
| 4756 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4757 | if (eind->elf.got.glist != NULL) |
| 4758 | { | |
| 4759 | if (edir->elf.got.glist != NULL) | |
| 4760 | { | |
| 4761 | struct got_entry **entp; | |
| 4762 | struct got_entry *ent; | |
| 4763 | ||
| 4764 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4765 | { | |
| 4766 | struct got_entry *dent; | |
| 4767 | ||
| 4768 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4769 | if (dent->addend == ent->addend | |
| e717da7e | 4770 | && dent->owner == ent->owner |
| 411e1bfb AM |
4771 | && dent->tls_type == ent->tls_type) |
| 4772 | { | |
| 4773 | dent->got.refcount += ent->got.refcount; | |
| 4774 | *entp = ent->next; | |
| 4775 | break; | |
| 4776 | } | |
| 4777 | if (dent == NULL) | |
| 4778 | entp = &ent->next; | |
| 4779 | } | |
| 4780 | *entp = edir->elf.got.glist; | |
| 4781 | } | |
| 4782 | ||
| 4783 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4784 | eind->elf.got.glist = NULL; | |
| 4785 | } | |
| 4786 | ||
| 4787 | /* And plt entries. */ | |
| 40d16e0b | 4788 | move_plt_plist (eind, edir); |
| 411e1bfb | 4789 | |
| fcfa13d2 | 4790 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4791 | { |
| fcfa13d2 AM |
4792 | if (edir->elf.dynindx != -1) |
| 4793 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4794 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4795 | edir->elf.dynindx = eind->elf.dynindx; |
| 4796 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4797 | eind->elf.dynindx = -1; | |
| 4798 | eind->elf.dynstr_index = 0; | |
| 4799 | } | |
| 411e1bfb AM |
4800 | } |
| 4801 | ||
| 8387904d AM |
4802 | /* Find the function descriptor hash entry from the given function code |
| 4803 | hash entry FH. Link the entries via their OH fields. */ | |
| 4804 | ||
| 4805 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4806 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4807 | { |
| 4808 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4809 | ||
| 4810 | if (fdh == NULL) | |
| 4811 | { | |
| 4812 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4813 | ||
| 4814 | fdh = (struct ppc_link_hash_entry *) | |
| 4815 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4816 | if (fdh == NULL) |
| 4817 | return fdh; | |
| 4818 | ||
| 4819 | fdh->is_func_descriptor = 1; | |
| 4820 | fdh->oh = fh; | |
| 4821 | fh->is_func = 1; | |
| 4822 | fh->oh = fdh; | |
| 8387904d AM |
4823 | } |
| 4824 | ||
| b31867b6 | 4825 | return ppc_follow_link (fdh); |
| 8387904d AM |
4826 | } |
| 4827 | ||
| bb700d78 AM |
4828 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4829 | ||
| 4830 | static struct ppc_link_hash_entry * | |
| 4831 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4832 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4833 | { |
| 4834 | bfd *abfd; | |
| 4835 | asymbol *newsym; | |
| 4836 | struct bfd_link_hash_entry *bh; | |
| 4837 | struct ppc_link_hash_entry *fdh; | |
| 4838 | ||
| 4839 | abfd = fh->elf.root.u.undef.abfd; | |
| 4840 | newsym = bfd_make_empty_symbol (abfd); | |
| 4841 | newsym->name = fh->elf.root.root.string + 1; | |
| 4842 | newsym->section = bfd_und_section_ptr; | |
| 4843 | newsym->value = 0; | |
| 908b32fc | 4844 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4845 | |
| 4846 | bh = NULL; | |
| 4847 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4848 | newsym->flags, newsym->section, | |
| 4849 | newsym->value, NULL, FALSE, FALSE, | |
| 4850 | &bh)) | |
| 4851 | return NULL; | |
| 4852 | ||
| 4853 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4854 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4855 | fdh->fake = 1; |
| 4856 | fdh->is_func_descriptor = 1; | |
| 4857 | fdh->oh = fh; | |
| 4858 | fh->is_func = 1; | |
| 4859 | fh->oh = fdh; | |
| bb700d78 AM |
4860 | return fdh; |
| 4861 | } | |
| 4862 | ||
| 8387904d AM |
4863 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4864 | function type. */ | |
| 555cd476 AM |
4865 | |
| 4866 | static bfd_boolean | |
| c16153ae | 4867 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4868 | struct bfd_link_info *info, |
| 555cd476 | 4869 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4870 | const char **name, |
| 555cd476 AM |
4871 | flagword *flags ATTRIBUTE_UNUSED, |
| 4872 | asection **sec, | |
| b53dfeb2 | 4873 | bfd_vma *value) |
| 555cd476 | 4874 | { |
| f1885d1e AM |
4875 | if ((ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| 4876 | || ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE) | |
| 4877 | && (ibfd->flags & DYNAMIC) == 0 | |
| 4878 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| 13a2df29 | 4879 | elf_tdata (info->output_bfd)->has_gnu_symbols = elf_gnu_symbol_any; |
| f64b2e8d | 4880 | |
| b53dfeb2 | 4881 | if (*sec != NULL |
| f1885d1e | 4882 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4883 | { |
| 4884 | asection *code_sec; | |
| 4885 | ||
| 4886 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4887 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4888 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4889 | ||
| 4890 | /* If the symbol is a function defined in .opd, and the function | |
| 4891 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4892 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4893 | && (*sec)->reloc_count != 0 |
| 4894 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4895 | FALSE) != (bfd_vma) -1 | |
| 4896 | && discarded_section (code_sec)) | |
| 4897 | { | |
| 4898 | *sec = bfd_und_section_ptr; | |
| 4899 | isym->st_shndx = SHN_UNDEF; | |
| 4900 | } | |
| 4901 | } | |
| dbd1e97e AM |
4902 | else if (*sec != NULL |
| 4903 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4904 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4905 | { | |
| 4906 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4907 | if (htab != NULL) | |
| 4908 | htab->params->object_in_toc = 1; | |
| 4909 | } | |
| 433817dd | 4910 | |
| 6911b7dc AM |
4911 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4912 | { | |
| 4913 | if (abiversion (ibfd) == 0) | |
| 4914 | set_abiversion (ibfd, 2); | |
| 4915 | else if (abiversion (ibfd) == 1) | |
| 4916 | { | |
| 4917 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4918 | " for ABI version 1\n"), name); | |
| 4919 | bfd_set_error (bfd_error_bad_value); | |
| 4920 | return FALSE; | |
| 4921 | } | |
| 4922 | } | |
| 4923 | ||
| 555cd476 AM |
4924 | return TRUE; |
| 4925 | } | |
| 4926 | ||
| 6911b7dc AM |
4927 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4928 | ||
| 4929 | static void | |
| 4930 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4931 | const Elf_Internal_Sym *isym, | |
| 4932 | bfd_boolean definition, | |
| 4933 | bfd_boolean dynamic) | |
| 4934 | { | |
| 4935 | if (definition && !dynamic) | |
| 4936 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4937 | | ELF_ST_VISIBILITY (h->other)); | |
| 4938 | } | |
| 4939 | ||
| 8387904d | 4940 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
4941 | inclusion of a new ABI object archive that defines "bar". |
| 4942 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 4943 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
4944 | |
| 4945 | static struct elf_link_hash_entry * | |
| 4946 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 4947 | struct bfd_link_info *info, | |
| 4948 | const char *name) | |
| 4949 | { | |
| 4950 | struct elf_link_hash_entry *h; | |
| 4951 | char *dot_name; | |
| 4952 | size_t len; | |
| 4953 | ||
| 4954 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
4955 | if (h != NULL |
| 4956 | /* Don't return this sym if it is a fake function descriptor | |
| 4957 | created by add_symbol_adjust. */ | |
| 4958 | && !(h->root.type == bfd_link_hash_undefweak | |
| 4959 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
4960 | return h; |
| 4961 | ||
| 4962 | if (name[0] == '.') | |
| 4963 | return h; | |
| 4964 | ||
| 4965 | len = strlen (name); | |
| 4966 | dot_name = bfd_alloc (abfd, len + 2); | |
| 4967 | if (dot_name == NULL) | |
| 4968 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 4969 | dot_name[0] = '.'; | |
| 4970 | memcpy (dot_name + 1, name, len + 1); | |
| 4971 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 4972 | bfd_release (abfd, dot_name); | |
| 4973 | return h; | |
| 4974 | } | |
| 4975 | ||
| 4976 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
4977 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 4978 | are made weak. This stops later archive searches from including an | |
| 4979 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
4980 | prevents the linker complaining about undefined symbols. |
| 4981 | We also check and correct mismatched symbol visibility here. The | |
| 4982 | most restrictive visibility of the function descriptor and the | |
| 4983 | function entry symbol is used. */ | |
| 8387904d AM |
4984 | |
| 4985 | static bfd_boolean | |
| b3fac117 | 4986 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 4987 | { |
| 8387904d AM |
4988 | struct ppc_link_hash_table *htab; |
| 4989 | struct ppc_link_hash_entry *fdh; | |
| 4990 | ||
| b3fac117 | 4991 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 8387904d AM |
4992 | return TRUE; |
| 4993 | ||
| b3fac117 AM |
4994 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 4995 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 4996 | |
| b3fac117 AM |
4997 | if (eh->elf.root.root.string[0] != '.') |
| 4998 | abort (); | |
| 8387904d | 4999 | |
| b3fac117 | 5000 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5001 | if (htab == NULL) |
| 5002 | return FALSE; | |
| 5003 | ||
| b31867b6 AM |
5004 | fdh = lookup_fdh (eh, htab); |
| 5005 | if (fdh == NULL) | |
| 5006 | { | |
| 0e1862bb | 5007 | if (!bfd_link_relocatable (info) |
| b31867b6 AM |
5008 | && (eh->elf.root.type == bfd_link_hash_undefined |
| 5009 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5010 | && eh->elf.ref_regular) | |
| 5011 | { | |
| 5012 | /* Make an undefweak function descriptor sym, which is enough to | |
| 5013 | pull in an --as-needed shared lib, but won't cause link | |
| 5014 | errors. Archives are handled elsewhere. */ | |
| 5015 | fdh = make_fdh (info, eh); | |
| 5016 | if (fdh == NULL) | |
| 5017 | return FALSE; | |
| 5018 | fdh->elf.ref_regular = 1; | |
| 5019 | } | |
| bb700d78 | 5020 | } |
| b31867b6 | 5021 | else |
| 8387904d | 5022 | { |
| 35b0ce59 AM |
5023 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5024 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 5025 | if (entry_vis < descr_vis) | |
| 5026 | fdh->elf.other += entry_vis - descr_vis; | |
| 5027 | else if (entry_vis > descr_vis) | |
| 5028 | eh->elf.other += descr_vis - entry_vis; | |
| 5029 | ||
| e87d886e AM |
5030 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 5031 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 5032 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
5033 | { |
| 5034 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 5035 | eh->was_undefined = 1; | |
| 5036 | htab->twiddled_syms = 1; | |
| 5037 | } | |
| 8387904d | 5038 | } |
| 99877b66 | 5039 | |
| 8387904d AM |
5040 | return TRUE; |
| 5041 | } | |
| 5042 | ||
| f6c7c3e8 AM |
5043 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5044 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5045 | |
| 8387904d | 5046 | static bfd_boolean |
| f6c7c3e8 | 5047 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5048 | { |
| 99877b66 | 5049 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5050 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5051 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5052 | |
| 459609d6 | 5053 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5054 | { |
| 459609d6 AM |
5055 | if (abiversion (ibfd) == 0) |
| 5056 | set_abiversion (ibfd, 1); | |
| 5057 | else if (abiversion (ibfd) == 2) | |
| f6c7c3e8 | 5058 | { |
| 459609d6 AM |
5059 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5060 | " version %d\n"), | |
| 5061 | ibfd, abiversion (ibfd)); | |
| 5062 | bfd_set_error (bfd_error_bad_value); | |
| 5063 | return FALSE; | |
| f6c7c3e8 AM |
5064 | } |
| 5065 | ||
| 459609d6 AM |
5066 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5067 | && (opd->flags & SEC_RELOC) != 0 | |
| 5068 | && opd->reloc_count != 0 | |
| 5069 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5070 | { |
| 459609d6 AM |
5071 | /* Garbage collection needs some extra help with .opd sections. |
| 5072 | We don't want to necessarily keep everything referenced by | |
| 5073 | relocs in .opd, as that would keep all functions. Instead, | |
| 5074 | if we reference an .opd symbol (a function descriptor), we | |
| 5075 | want to keep the function code symbol's section. This is | |
| 5076 | easy for global symbols, but for local syms we need to keep | |
| 5077 | information about the associated function section. */ | |
| 5078 | bfd_size_type amt; | |
| 5079 | asection **opd_sym_map; | |
| 5080 | ||
| 51aecdc5 | 5081 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5082 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5083 | if (opd_sym_map == NULL) | |
| b3fac117 | 5084 | return FALSE; |
| 459609d6 AM |
5085 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5086 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5087 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5088 | } |
| 5089 | } | |
| 5090 | ||
| 459609d6 AM |
5091 | if (!is_ppc64_elf (info->output_bfd)) |
| 5092 | return TRUE; | |
| 5093 | htab = ppc_hash_table (info); | |
| 5094 | if (htab == NULL) | |
| 5095 | return FALSE; | |
| 5096 | ||
| 5097 | /* For input files without an explicit abiversion in e_flags | |
| 5098 | we should have flagged any with symbol st_other bits set | |
| 5099 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5100 | Set the output abiversion if not yet set, and for any input | |
| 5101 | still ambiguous, take its abiversion from the output. | |
| 5102 | Differences in ABI are reported later. */ | |
| 5103 | if (abiversion (info->output_bfd) == 0) | |
| 5104 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5105 | else if (abiversion (ibfd) == 0) | |
| 5106 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5107 | ||
| 5108 | p = &htab->dot_syms; | |
| 5109 | while ((eh = *p) != NULL) | |
| 5110 | { | |
| 5111 | *p = NULL; | |
| 5112 | if (&eh->elf == htab->elf.hgot) | |
| 5113 | ; | |
| 5114 | else if (htab->elf.hgot == NULL | |
| 5115 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5116 | htab->elf.hgot = &eh->elf; | |
| 5117 | else if (!add_symbol_adjust (eh, info)) | |
| 5118 | return FALSE; | |
| 5119 | p = &eh->u.next_dot_sym; | |
| 5120 | } | |
| 5121 | ||
| b3fac117 AM |
5122 | /* Clear the list for non-ppc64 input files. */ |
| 5123 | p = &htab->dot_syms; | |
| 5124 | while ((eh = *p) != NULL) | |
| 5125 | { | |
| 5126 | *p = NULL; | |
| 5127 | p = &eh->u.next_dot_sym; | |
| 5128 | } | |
| 99877b66 AM |
5129 | |
| 5130 | /* We need to fix the undefs list for any syms we have twiddled to | |
| 5131 | undef_weak. */ | |
| 5132 | if (htab->twiddled_syms) | |
| 5133 | { | |
| 77cfaee6 | 5134 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
5135 | htab->twiddled_syms = 0; |
| 5136 | } | |
| b3fac117 | 5137 | return TRUE; |
| 8387904d AM |
5138 | } |
| 5139 | ||
| 97fed1c9 JJ |
5140 | /* Undo hash table changes when an --as-needed input file is determined |
| 5141 | not to be needed. */ | |
| 5142 | ||
| 5143 | static bfd_boolean | |
| e5034e59 AM |
5144 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5145 | struct bfd_link_info *info, | |
| 5146 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5147 | { |
| e5034e59 AM |
5148 | if (act == notice_not_needed) |
| 5149 | { | |
| 5150 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5151 | |
| e5034e59 AM |
5152 | if (htab == NULL) |
| 5153 | return FALSE; | |
| 4dfe6ac6 | 5154 | |
| e5034e59 AM |
5155 | htab->dot_syms = NULL; |
| 5156 | } | |
| 5157 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5158 | } |
| 5159 | ||
| aa374f67 AM |
5160 | /* If --just-symbols against a final linked binary, then assume we need |
| 5161 | toc adjusting stubs when calling functions defined there. */ | |
| 5162 | ||
| 5163 | static void | |
| 5164 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5165 | { | |
| 5166 | if ((sec->flags & SEC_CODE) != 0 | |
| 5167 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5168 | && is_ppc64_elf (sec->owner)) | |
| 5169 | { | |
| 2c3f079f AM |
5170 | if (abiversion (sec->owner) >= 2 |
| 5171 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5172 | sec->has_toc_reloc = 1; |
| 5173 | } | |
| 5174 | _bfd_elf_link_just_syms (sec, info); | |
| 5175 | } | |
| 5176 | ||
| e054468f | 5177 | static struct plt_entry ** |
| 4ce794b7 AM |
5178 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5179 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5180 | { |
| 5181 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5182 | struct plt_entry **local_plt; |
| f961d9dd | 5183 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5184 | |
| 5185 | if (local_got_ents == NULL) | |
| 5186 | { | |
| 5187 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5188 | ||
| e054468f AM |
5189 | size *= (sizeof (*local_got_ents) |
| 5190 | + sizeof (*local_plt) | |
| 5191 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5192 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5193 | if (local_got_ents == NULL) |
| e054468f | 5194 | return NULL; |
| 411e1bfb AM |
5195 | elf_local_got_ents (abfd) = local_got_ents; |
| 5196 | } | |
| 5197 | ||
| e054468f | 5198 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5199 | { |
| 5200 | struct got_entry *ent; | |
| 5201 | ||
| 5202 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5203 | if (ent->addend == r_addend |
| 5204 | && ent->owner == abfd | |
| 5205 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5206 | break; |
| 5207 | if (ent == NULL) | |
| 5208 | { | |
| 5209 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5210 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5211 | if (ent == NULL) |
| 5212 | return FALSE; | |
| 5213 | ent->next = local_got_ents[r_symndx]; | |
| 5214 | ent->addend = r_addend; | |
| e717da7e | 5215 | ent->owner = abfd; |
| 411e1bfb | 5216 | ent->tls_type = tls_type; |
| 927be08e | 5217 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5218 | ent->got.refcount = 0; |
| 5219 | local_got_ents[r_symndx] = ent; | |
| 5220 | } | |
| 5221 | ent->got.refcount += 1; | |
| 5222 | } | |
| 5223 | ||
| e054468f | 5224 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5225 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5226 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5227 | |
| 5228 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5229 | } |
| 5230 | ||
| 411e1bfb | 5231 | static bfd_boolean |
| e054468f | 5232 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5233 | { |
| 411e1bfb | 5234 | struct plt_entry *ent; |
| 1e2f5b6e | 5235 | |
| e054468f | 5236 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5237 | if (ent->addend == addend) |
| 5238 | break; | |
| 5239 | if (ent == NULL) | |
| 1e2f5b6e | 5240 | { |
| 411e1bfb | 5241 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5242 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5243 | if (ent == NULL) |
| 5244 | return FALSE; | |
| e054468f | 5245 | ent->next = *plist; |
| 411e1bfb AM |
5246 | ent->addend = addend; |
| 5247 | ent->plt.refcount = 0; | |
| e054468f | 5248 | *plist = ent; |
| 1e2f5b6e | 5249 | } |
| 411e1bfb | 5250 | ent->plt.refcount += 1; |
| b34976b6 | 5251 | return TRUE; |
| 1e2f5b6e AM |
5252 | } |
| 5253 | ||
| e054468f AM |
5254 | static bfd_boolean |
| 5255 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5256 | { | |
| 5257 | return (r_type == R_PPC64_REL24 | |
| 5258 | || r_type == R_PPC64_REL14 | |
| 5259 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5260 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5261 | || r_type == R_PPC64_ADDR24 | |
| 5262 | || r_type == R_PPC64_ADDR14 | |
| 5263 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5264 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5265 | } | |
| 5266 | ||
| 5bd4f169 | 5267 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5268 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5269 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5270 | |
| b34976b6 | 5271 | static bfd_boolean |
| 4ce794b7 AM |
5272 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5273 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5274 | { |
| 65f38f15 | 5275 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5276 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5277 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5278 | const Elf_Internal_Rela *rel; |
| 5279 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5280 | asection *sreloc; |
| 1e2f5b6e | 5281 | asection **opd_sym_map; |
| 3a71aa26 | 5282 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5283 | |
| 0e1862bb | 5284 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5285 | return TRUE; |
| 5bd4f169 | 5286 | |
| 680a3378 AM |
5287 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5288 | In particular, any relocs in such sections should not affect GOT | |
| 5289 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5290 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5291 | relocs, and there's not much point in propagating relocs to shared | |
| 5292 | libs that the dynamic linker won't relocate. */ | |
| 5293 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5294 | return TRUE; | |
| 5295 | ||
| 0c8d6e5c | 5296 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5297 | |
| 65f38f15 | 5298 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5299 | if (htab == NULL) |
| 5300 | return FALSE; | |
| 5301 | ||
| 3a71aa26 AM |
5302 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5303 | FALSE, FALSE, TRUE); | |
| 5304 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5305 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5306 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5307 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5308 | sreloc = NULL; |
| 1e2f5b6e | 5309 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5310 | if (ppc64_elf_section_data (sec) != NULL |
| 5311 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5312 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5313 | |
| 5314 | rel_end = relocs + sec->reloc_count; | |
| 5315 | for (rel = relocs; rel < rel_end; rel++) | |
| 5316 | { | |
| 5317 | unsigned long r_symndx; | |
| 5318 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5319 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5320 | int tls_type; |
| 7c8fe5c4 | 5321 | struct _ppc64_elf_section_data *ppc64_sec; |
| e054468f | 5322 | struct plt_entry **ifunc; |
| 5bd4f169 AM |
5323 | |
| 5324 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5325 | if (r_symndx < symtab_hdr->sh_info) | |
| 5326 | h = NULL; | |
| 5327 | else | |
| 973a3492 L |
5328 | { |
| 5329 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5330 | h = elf_follow_link (h); |
| 81fbe831 AM |
5331 | |
| 5332 | /* PR15323, ref flags aren't set for references in the same | |
| 5333 | object. */ | |
| 5334 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5335 | |
| 5336 | if (h == htab->elf.hgot) | |
| 5337 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5338 | } |
| 5bd4f169 | 5339 | |
| 727fc41e | 5340 | tls_type = 0; |
| e054468f | 5341 | ifunc = NULL; |
| 25f23106 AM |
5342 | if (h != NULL) |
| 5343 | { | |
| 5344 | if (h->type == STT_GNU_IFUNC) | |
| 5345 | { | |
| 5346 | h->needs_plt = 1; | |
| 5347 | ifunc = &h->plt.plist; | |
| 5348 | } | |
| 5349 | } | |
| 5350 | else | |
| 5351 | { | |
| 5352 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5353 | abfd, r_symndx); | |
| 5354 | if (isym == NULL) | |
| 5355 | return FALSE; | |
| 5356 | ||
| 5357 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5358 | { | |
| 5359 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5360 | rel->r_addend, PLT_IFUNC); | |
| 5361 | if (ifunc == NULL) | |
| 5362 | return FALSE; | |
| 5363 | } | |
| 5364 | } | |
| 4ce794b7 | 5365 | r_type = ELF64_R_TYPE (rel->r_info); |
| e054468f AM |
5366 | if (is_branch_reloc (r_type)) |
| 5367 | { | |
| 5368 | if (h != NULL && (h == tga || h == dottga)) | |
| 5369 | { | |
| 5370 | if (rel != relocs | |
| 5371 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5372 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5373 | /* We have a new-style __tls_get_addr call with a marker | |
| 5374 | reloc. */ | |
| 5375 | ; | |
| 5376 | else | |
| 5377 | /* Mark this section as having an old-style call. */ | |
| 5378 | sec->has_tls_get_addr_call = 1; | |
| 5379 | } | |
| 727fc41e | 5380 | |
| e054468f | 5381 | /* STT_GNU_IFUNC symbols must have a PLT entry. */ |
| e054468f AM |
5382 | if (ifunc != NULL |
| 5383 | && !update_plt_info (abfd, ifunc, rel->r_addend)) | |
| 5384 | return FALSE; | |
| 5385 | } | |
| 727fc41e | 5386 | |
| a33d1f77 | 5387 | switch (r_type) |
| 5bd4f169 | 5388 | { |
| 727fc41e AM |
5389 | case R_PPC64_TLSGD: |
| 5390 | case R_PPC64_TLSLD: | |
| 5391 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5392 | its parameter symbol. */ | |
| 5393 | break; | |
| 5394 | ||
| 411e1bfb AM |
5395 | case R_PPC64_GOT_TLSLD16: |
| 5396 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5397 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5398 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5399 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5400 | goto dogottls; |
| 5401 | ||
| 5402 | case R_PPC64_GOT_TLSGD16: | |
| 5403 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5404 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5405 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5406 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5407 | goto dogottls; |
| 5408 | ||
| 5409 | case R_PPC64_GOT_TPREL16_DS: | |
| 5410 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5411 | case R_PPC64_GOT_TPREL16_HI: | |
| 5412 | case R_PPC64_GOT_TPREL16_HA: | |
| 0e1862bb | 5413 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5414 | info->flags |= DF_STATIC_TLS; |
| 5415 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5416 | goto dogottls; | |
| 5417 | ||
| 5418 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5419 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5420 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5421 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5422 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5423 | dogottls: | |
| 5424 | sec->has_tls_reloc = 1; | |
| 5425 | /* Fall thru */ | |
| 5426 | ||
| 5bd4f169 | 5427 | case R_PPC64_GOT16: |
| 5bd4f169 | 5428 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5429 | case R_PPC64_GOT16_HA: |
| 5430 | case R_PPC64_GOT16_HI: | |
| 5431 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5432 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5433 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5434 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5435 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5436 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5437 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5438 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5439 | || r_type == R_PPC64_GOT16 | |
| 5440 | || r_type == R_PPC64_GOT16_DS) | |
| 5441 | { | |
| 5442 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5443 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5444 | } |
| 5445 | ||
| e717da7e AM |
5446 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5447 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5448 | return FALSE; |
| 5bd4f169 AM |
5449 | |
| 5450 | if (h != NULL) | |
| 5451 | { | |
| 411e1bfb AM |
5452 | struct ppc_link_hash_entry *eh; |
| 5453 | struct got_entry *ent; | |
| 65f38f15 | 5454 | |
| 411e1bfb AM |
5455 | eh = (struct ppc_link_hash_entry *) h; |
| 5456 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5457 | if (ent->addend == rel->r_addend | |
| e717da7e | 5458 | && ent->owner == abfd |
| 411e1bfb AM |
5459 | && ent->tls_type == tls_type) |
| 5460 | break; | |
| 5461 | if (ent == NULL) | |
| 5bd4f169 | 5462 | { |
| 411e1bfb | 5463 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5464 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5465 | if (ent == NULL) |
| b34976b6 | 5466 | return FALSE; |
| 411e1bfb AM |
5467 | ent->next = eh->elf.got.glist; |
| 5468 | ent->addend = rel->r_addend; | |
| e717da7e | 5469 | ent->owner = abfd; |
| 411e1bfb | 5470 | ent->tls_type = tls_type; |
| 927be08e | 5471 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5472 | ent->got.refcount = 0; |
| 5473 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5474 | } |
| 411e1bfb | 5475 | ent->got.refcount += 1; |
| e7b938ca | 5476 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5477 | } |
| 411e1bfb AM |
5478 | else |
| 5479 | /* This is a global offset table entry for a local symbol. */ | |
| 5480 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5481 | rel->r_addend, tls_type)) | |
| 5482 | return FALSE; | |
| a345bc8d AM |
5483 | |
| 5484 | /* We may also need a plt entry if the symbol turns out to be | |
| 5485 | an ifunc. */ | |
| 0e1862bb | 5486 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5487 | { |
| 5488 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5489 | return FALSE; | |
| 5490 | } | |
| 5bd4f169 AM |
5491 | break; |
| 5492 | ||
| 5bd4f169 | 5493 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5494 | case R_PPC64_PLT16_HI: |
| 5495 | case R_PPC64_PLT16_LO: | |
| 5496 | case R_PPC64_PLT32: | |
| 5497 | case R_PPC64_PLT64: | |
| 5bd4f169 | 5498 | /* This symbol requires a procedure linkage table entry. We |
| 3fad3c7c AM |
5499 | actually build the entry in adjust_dynamic_symbol, |
| 5500 | because this might be a case of linking PIC code without | |
| 5501 | linking in any dynamic objects, in which case we don't | |
| 5502 | need to generate a procedure linkage table after all. */ | |
| 5bd4f169 AM |
5503 | if (h == NULL) |
| 5504 | { | |
| 5505 | /* It does not make sense to have a procedure linkage | |
| 3fad3c7c | 5506 | table entry for a local symbol. */ |
| 5bd4f169 | 5507 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 5508 | return FALSE; |
| 5bd4f169 | 5509 | } |
| 411e1bfb | 5510 | else |
| e054468f AM |
5511 | { |
| 5512 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5513 | return FALSE; | |
| 5514 | h->needs_plt = 1; | |
| 5515 | if (h->root.root.string[0] == '.' | |
| 5516 | && h->root.root.string[1] != '\0') | |
| 5517 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5518 | } | |
| 5bd4f169 AM |
5519 | break; |
| 5520 | ||
| 5521 | /* The following relocations don't need to propagate the | |
| 5522 | relocation if linking a shared object since they are | |
| 5523 | section relative. */ | |
| 5524 | case R_PPC64_SECTOFF: | |
| 5525 | case R_PPC64_SECTOFF_LO: | |
| 5526 | case R_PPC64_SECTOFF_HI: | |
| 5527 | case R_PPC64_SECTOFF_HA: | |
| 5528 | case R_PPC64_SECTOFF_DS: | |
| 5529 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5530 | case R_PPC64_DTPREL16: |
| 5531 | case R_PPC64_DTPREL16_LO: | |
| 5532 | case R_PPC64_DTPREL16_HI: | |
| 5533 | case R_PPC64_DTPREL16_HA: | |
| 5534 | case R_PPC64_DTPREL16_DS: | |
| 5535 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5536 | case R_PPC64_DTPREL16_HIGH: |
| 5537 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5538 | case R_PPC64_DTPREL16_HIGHER: |
| 5539 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5540 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5541 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5542 | break; |
| 5543 | ||
| ad8e1ba5 | 5544 | /* Nor do these. */ |
| 25f23106 AM |
5545 | case R_PPC64_REL16: |
| 5546 | case R_PPC64_REL16_LO: | |
| 5547 | case R_PPC64_REL16_HI: | |
| 5548 | case R_PPC64_REL16_HA: | |
| a680de9a | 5549 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5550 | break; |
| 5551 | ||
| 45965137 AM |
5552 | /* Not supported as a dynamic relocation. */ |
| 5553 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5554 | if (bfd_link_pic (info)) |
| 45965137 AM |
5555 | { |
| 5556 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5557 | ppc_howto_init (); | |
| 5558 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " | |
| 5559 | "in shared libraries and PIEs.\n"), | |
| 5560 | abfd, sec, rel->r_offset, | |
| 5561 | ppc64_elf_howto_table[r_type]->name); | |
| 5562 | bfd_set_error (bfd_error_bad_value); | |
| 5563 | return FALSE; | |
| 5564 | } | |
| 5565 | break; | |
| 5566 | ||
| ad8e1ba5 | 5567 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5568 | case R_PPC64_TOC16_DS: |
| 5569 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5570 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| ad8e1ba5 AM |
5571 | case R_PPC64_TOC16_LO: |
| 5572 | case R_PPC64_TOC16_HI: | |
| 5573 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5574 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5575 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5576 | break; |
| 5577 | ||
| 5bd4f169 AM |
5578 | /* This relocation describes the C++ object vtable hierarchy. |
| 5579 | Reconstruct it for later use during GC. */ | |
| 5580 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5581 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5582 | return FALSE; |
| 5bd4f169 AM |
5583 | break; |
| 5584 | ||
| 5585 | /* This relocation describes which C++ vtable entries are actually | |
| 5586 | used. Record for later use during GC. */ | |
| 5587 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5588 | BFD_ASSERT (h != NULL); |
| 5589 | if (h != NULL | |
| 5590 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5591 | return FALSE; |
| 5bd4f169 AM |
5592 | break; |
| 5593 | ||
| 721956f4 AM |
5594 | case R_PPC64_REL14: |
| 5595 | case R_PPC64_REL14_BRTAKEN: | |
| 5596 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5597 | { |
| 5598 | asection *dest = NULL; | |
| 5599 | ||
| 5600 | /* Heuristic: If jumping outside our section, chances are | |
| 5601 | we are going to need a stub. */ | |
| 5602 | if (h != NULL) | |
| 5603 | { | |
| 5604 | /* If the sym is weak it may be overridden later, so | |
| 5605 | don't assume we know where a weak sym lives. */ | |
| 5606 | if (h->root.type == bfd_link_hash_defined) | |
| 5607 | dest = h->root.u.def.section; | |
| 5608 | } | |
| 5609 | else | |
| 87d72d41 AM |
5610 | { |
| 5611 | Elf_Internal_Sym *isym; | |
| 5612 | ||
| 5613 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5614 | abfd, r_symndx); | |
| 5615 | if (isym == NULL) | |
| 5616 | return FALSE; | |
| 5617 | ||
| 5618 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5619 | } | |
| 5620 | ||
| 220c76dd | 5621 | if (dest != sec) |
| 7c8fe5c4 | 5622 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5623 | } |
| 721956f4 AM |
5624 | /* Fall through. */ |
| 5625 | ||
| 5d1634d7 | 5626 | case R_PPC64_REL24: |
| e054468f | 5627 | if (h != NULL && ifunc == NULL) |
| 5d1634d7 AM |
5628 | { |
| 5629 | /* We may need a .plt entry if the function this reloc | |
| 5630 | refers to is in a shared lib. */ | |
| e054468f | 5631 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) |
| 411e1bfb | 5632 | return FALSE; |
| e054468f AM |
5633 | h->needs_plt = 1; |
| 5634 | if (h->root.root.string[0] == '.' | |
| 5635 | && h->root.root.string[1] != '\0') | |
| 5636 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 3a71aa26 | 5637 | if (h == tga || h == dottga) |
| 411e1bfb | 5638 | sec->has_tls_reloc = 1; |
| 411e1bfb AM |
5639 | } |
| 5640 | break; | |
| 5641 | ||
| 5642 | case R_PPC64_TPREL64: | |
| 5643 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 0e1862bb | 5644 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5645 | info->flags |= DF_STATIC_TLS; |
| 5646 | goto dotlstoc; | |
| 5647 | ||
| 5648 | case R_PPC64_DTPMOD64: | |
| 5649 | if (rel + 1 < rel_end | |
| 5650 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5651 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5652 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5653 | else |
| 951fd09b | 5654 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5655 | goto dotlstoc; |
| 5656 | ||
| 5657 | case R_PPC64_DTPREL64: | |
| 5658 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5659 | if (rel != relocs | |
| 5660 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5661 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5662 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5663 | Don't mark with TLS_DTPREL. */ | |
| 5664 | goto dodyn; | |
| 5665 | ||
| 5666 | dotlstoc: | |
| 5667 | sec->has_tls_reloc = 1; | |
| 5668 | if (h != NULL) | |
| 5669 | { | |
| 5670 | struct ppc_link_hash_entry *eh; | |
| 5671 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5672 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5673 | } |
| 5674 | else | |
| 5675 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5676 | rel->r_addend, tls_type)) | |
| 5677 | return FALSE; | |
| 5678 | ||
| 7c8fe5c4 AM |
5679 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5680 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5681 | { |
| 3a71aa26 AM |
5682 | bfd_size_type amt; |
| 5683 | ||
| e7b938ca | 5684 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5685 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5686 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5687 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5688 | return FALSE; | |
| 5689 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5690 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5691 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5692 | return FALSE; |
| 7c8fe5c4 AM |
5693 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5694 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5695 | } |
| 5696 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5697 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5698 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5699 | |
| 5700 | /* Mark the second slot of a GD or LD entry. | |
| 5701 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5702 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5703 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5704 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5705 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5706 | goto dodyn; |
| 5707 | ||
| 5708 | case R_PPC64_TPREL16: | |
| 5709 | case R_PPC64_TPREL16_LO: | |
| 5710 | case R_PPC64_TPREL16_HI: | |
| 5711 | case R_PPC64_TPREL16_HA: | |
| 5712 | case R_PPC64_TPREL16_DS: | |
| 5713 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5714 | case R_PPC64_TPREL16_HIGH: |
| 5715 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5716 | case R_PPC64_TPREL16_HIGHER: |
| 5717 | case R_PPC64_TPREL16_HIGHERA: | |
| 5718 | case R_PPC64_TPREL16_HIGHEST: | |
| 5719 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 5720 | if (bfd_link_pic (info)) |
| 411e1bfb | 5721 | { |
| afb93314 | 5722 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5723 | goto dodyn; |
| 5d1634d7 AM |
5724 | } |
| 5725 | break; | |
| 5726 | ||
| e86ce104 | 5727 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5728 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5729 | && rel + 1 < rel_end |
| 4ce794b7 | 5730 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5731 | { |
| 8387904d AM |
5732 | if (h != NULL) |
| 5733 | { | |
| 5734 | if (h->root.root.string[0] == '.' | |
| 5735 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5736 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5737 | ; |
| 5738 | else | |
| 5739 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5740 | } | |
| 5741 | else | |
| 5742 | { | |
| 5743 | asection *s; | |
| 87d72d41 | 5744 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5745 | |
| 87d72d41 AM |
5746 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5747 | abfd, r_symndx); | |
| 5748 | if (isym == NULL) | |
| 8387904d | 5749 | return FALSE; |
| 87d72d41 AM |
5750 | |
| 5751 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5752 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5753 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5754 | } |
| 1e2f5b6e | 5755 | } |
| e86ce104 AM |
5756 | /* Fall through. */ |
| 5757 | ||
| 65f38f15 AM |
5758 | case R_PPC64_ADDR16: |
| 5759 | case R_PPC64_ADDR16_DS: | |
| 5760 | case R_PPC64_ADDR16_HA: | |
| 5761 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5762 | case R_PPC64_ADDR16_HIGH: |
| 5763 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5764 | case R_PPC64_ADDR16_HIGHER: |
| 5765 | case R_PPC64_ADDR16_HIGHERA: | |
| 5766 | case R_PPC64_ADDR16_HIGHEST: | |
| 5767 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5768 | case R_PPC64_ADDR16_LO: | |
| 5769 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5770 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5771 | && rel->r_addend == 0) |
| 5772 | { | |
| 5773 | /* We may need a .plt entry if this reloc refers to a | |
| 5774 | function in a shared lib. */ | |
| 5775 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5776 | return FALSE; | |
| 5777 | h->pointer_equality_needed = 1; | |
| 5778 | } | |
| 5779 | /* Fall through. */ | |
| 5780 | ||
| 5781 | case R_PPC64_REL30: | |
| 5782 | case R_PPC64_REL32: | |
| 5783 | case R_PPC64_REL64: | |
| 5784 | case R_PPC64_ADDR14: | |
| 5785 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5786 | case R_PPC64_ADDR14_BRTAKEN: | |
| 65f38f15 | 5787 | case R_PPC64_ADDR24: |
| 65f38f15 | 5788 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5789 | case R_PPC64_UADDR16: |
| 5790 | case R_PPC64_UADDR32: | |
| 5791 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5792 | case R_PPC64_TOC: |
| 0e1862bb | 5793 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5794 | /* We may need a copy reloc. */ |
| f5385ebf | 5795 | h->non_got_ref = 1; |
| 81848ca0 | 5796 | |
| 41bd81ab | 5797 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5798 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5799 | break; |
| e86ce104 | 5800 | |
| 65f38f15 AM |
5801 | /* If we are creating a shared library, and this is a reloc |
| 5802 | against a global symbol, or a non PC relative reloc | |
| 5803 | against a local symbol, then we need to copy the reloc | |
| 5804 | into the shared library. However, if we are linking with | |
| 5805 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5806 | global symbol which is defined in an object we are | |
| 5807 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5808 | this point we have not seen all the input files, so it is | |
| 5809 | possible that DEF_REGULAR is not set now but will be set | |
| 5810 | later (it is never cleared). In case of a weak definition, | |
| 5811 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5812 | a shared library. We account for that possibility below by | |
| f4656909 | 5813 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5814 | table entry. A similar situation occurs when creating |
| 5815 | shared libraries and symbol visibility changes render the | |
| 5816 | symbol local. | |
| 5817 | ||
| 5818 | If on the other hand, we are creating an executable, we | |
| 5819 | may need to keep relocations for symbols satisfied by a | |
| 5820 | dynamic library if we manage to avoid copy relocs for the | |
| 5821 | symbol. */ | |
| 411e1bfb | 5822 | dodyn: |
| 0e1862bb | 5823 | if ((bfd_link_pic (info) |
| 1d483afe | 5824 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5825 | || (h != NULL |
| 198f1157 | 5826 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5827 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5828 | || !h->def_regular)))) |
| f4656909 | 5829 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5830 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5831 | && h != NULL |
| 5832 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5833 | || !h->def_regular)) |
| 0e1862bb | 5834 | || (!bfd_link_pic (info) |
| 25f23106 | 5835 | && ifunc != NULL)) |
| 5bd4f169 | 5836 | { |
| 65f38f15 AM |
5837 | /* We must copy these reloc types into the output file. |
| 5838 | Create a reloc section in dynobj and make room for | |
| 5839 | this reloc. */ | |
| 5bd4f169 AM |
5840 | if (sreloc == NULL) |
| 5841 | { | |
| 83bac4b0 NC |
5842 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5843 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5844 | |
| 5bd4f169 | 5845 | if (sreloc == NULL) |
| 83bac4b0 | 5846 | return FALSE; |
| 5bd4f169 AM |
5847 | } |
| 5848 | ||
| 65f38f15 AM |
5849 | /* If this is a global symbol, we count the number of |
| 5850 | relocations we need for this symbol. */ | |
| 5851 | if (h != NULL) | |
| 5852 | { | |
| 19e08130 AM |
5853 | struct elf_dyn_relocs *p; |
| 5854 | struct elf_dyn_relocs **head; | |
| 5855 | ||
| ec338859 | 5856 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5857 | p = *head; |
| 5858 | if (p == NULL || p->sec != sec) | |
| 5859 | { | |
| 5860 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5861 | if (p == NULL) | |
| 5862 | return FALSE; | |
| 5863 | p->next = *head; | |
| 5864 | *head = p; | |
| 5865 | p->sec = sec; | |
| 5866 | p->count = 0; | |
| 5867 | p->pc_count = 0; | |
| 5868 | } | |
| 5869 | p->count += 1; | |
| 5870 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5871 | p->pc_count += 1; | |
| 65f38f15 AM |
5872 | } |
| 5873 | else | |
| 5874 | { | |
| ec338859 AM |
5875 | /* Track dynamic relocs needed for local syms too. |
| 5876 | We really need local syms available to do this | |
| 5877 | easily. Oh well. */ | |
| 19e08130 AM |
5878 | struct ppc_dyn_relocs *p; |
| 5879 | struct ppc_dyn_relocs **head; | |
| 5880 | bfd_boolean is_ifunc; | |
| ec338859 | 5881 | asection *s; |
| 6edfbbad | 5882 | void *vpp; |
| 87d72d41 | 5883 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5884 | |
| 87d72d41 AM |
5885 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5886 | abfd, r_symndx); | |
| 5887 | if (isym == NULL) | |
| b34976b6 | 5888 | return FALSE; |
| ec338859 | 5889 | |
| 87d72d41 AM |
5890 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5891 | if (s == NULL) | |
| 5892 | s = sec; | |
| 5893 | ||
| 6edfbbad | 5894 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5895 | head = (struct ppc_dyn_relocs **) vpp; |
| 5896 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5897 | p = *head; | |
| 5898 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5899 | p = p->next; | |
| 5900 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5901 | { | |
| 5902 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5903 | if (p == NULL) | |
| 5904 | return FALSE; | |
| 5905 | p->next = *head; | |
| 5906 | *head = p; | |
| 5907 | p->sec = sec; | |
| 5908 | p->ifunc = is_ifunc; | |
| 5909 | p->count = 0; | |
| 5910 | } | |
| 5911 | p->count += 1; | |
| ec338859 | 5912 | } |
| 65f38f15 | 5913 | } |
| 5bd4f169 | 5914 | break; |
| 65f38f15 AM |
5915 | |
| 5916 | default: | |
| 96e0dda4 | 5917 | break; |
| 5bd4f169 AM |
5918 | } |
| 5919 | } | |
| 5920 | ||
| b34976b6 | 5921 | return TRUE; |
| 5bd4f169 AM |
5922 | } |
| 5923 | ||
| ee67d69a AM |
5924 | /* Merge backend specific data from an object file to the output |
| 5925 | object file when linking. */ | |
| 5926 | ||
| 5927 | static bfd_boolean | |
| 5928 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
| 5929 | { | |
| 5930 | unsigned long iflags, oflags; | |
| 5931 | ||
| 5932 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5933 | return TRUE; | |
| 5934 | ||
| 5935 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 5936 | return TRUE; | |
| 5937 | ||
| 5938 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
| 5939 | return FALSE; | |
| 5940 | ||
| 5941 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 5942 | oflags = elf_elfheader (obfd)->e_flags; | |
| 5943 | ||
| f6c7c3e8 | 5944 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a AM |
5945 | { |
| 5946 | (*_bfd_error_handler) | |
| 5947 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); | |
| 5948 | bfd_set_error (bfd_error_bad_value); | |
| 5949 | return FALSE; | |
| 5950 | } | |
| f6c7c3e8 | 5951 | else if (iflags != oflags && iflags != 0) |
| ee67d69a AM |
5952 | { |
| 5953 | (*_bfd_error_handler) | |
| 5954 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), | |
| 5955 | ibfd, iflags, oflags); | |
| 5956 | bfd_set_error (bfd_error_bad_value); | |
| 5957 | return FALSE; | |
| 5958 | } | |
| 5959 | ||
| 5960 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
| 5961 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
| 5962 | ||
| 5963 | return TRUE; | |
| 5964 | } | |
| 5965 | ||
| 5966 | static bfd_boolean | |
| 5967 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 5968 | { | |
| 5969 | /* Print normal ELF private data. */ | |
| 5970 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 5971 | ||
| 5972 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 5973 | { | |
| 5974 | FILE *file = ptr; | |
| 5975 | ||
| 5976 | /* xgettext:c-format */ | |
| 5977 | fprintf (file, _("private flags = 0x%lx:"), | |
| 5978 | elf_elfheader (abfd)->e_flags); | |
| 5979 | ||
| 5980 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 5981 | fprintf (file, _(" [abiv%ld]"), | |
| 5982 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 5983 | fputc ('\n', file); | |
| 5984 | } | |
| 5985 | ||
| 5986 | return TRUE; | |
| 5987 | } | |
| 5988 | ||
| 8387904d | 5989 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
5990 | of the code entry point, and its section, which must be in the same |
| 5991 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
5992 | |
| 5993 | static bfd_vma | |
| 5994 | opd_entry_value (asection *opd_sec, | |
| 5995 | bfd_vma offset, | |
| 5996 | asection **code_sec, | |
| aef36ac1 AM |
5997 | bfd_vma *code_off, |
| 5998 | bfd_boolean in_code_sec) | |
| 8387904d AM |
5999 | { |
| 6000 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6001 | Elf_Internal_Rela *relocs; |
| 8387904d | 6002 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6003 | bfd_vma val; |
| 8387904d | 6004 | |
| 9f296da3 AM |
6005 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6006 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6007 | if (opd_sec->reloc_count == 0) |
| 6008 | { | |
| 729eabd5 | 6009 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6010 | |
| 729eabd5 AM |
6011 | if (contents == NULL) |
| 6012 | { | |
| 6013 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6014 | return (bfd_vma) -1; | |
| 6015 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6016 | } | |
| ee1e4ede | 6017 | |
| dbb3fbbb | 6018 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6019 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6020 | return (bfd_vma) -1; |
| 6021 | ||
| 729eabd5 | 6022 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6023 | if (code_sec != NULL) |
| 6024 | { | |
| 6025 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6026 | |
| aef36ac1 | 6027 | if (in_code_sec) |
| 4b85d634 | 6028 | { |
| aef36ac1 AM |
6029 | sec = *code_sec; |
| 6030 | if (sec->vma <= val | |
| 6031 | && val < sec->vma + sec->size) | |
| 6032 | likely = sec; | |
| 6033 | else | |
| 6034 | val = -1; | |
| 6035 | } | |
| 6036 | else | |
| 6037 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6038 | if (sec->vma <= val | |
| 6039 | && (sec->flags & SEC_LOAD) != 0 | |
| 6040 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6041 | likely = sec; | |
| 6042 | if (likely != NULL) | |
| 6043 | { | |
| 6044 | *code_sec = likely; | |
| 6045 | if (code_off != NULL) | |
| 6046 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6047 | } |
| 6048 | } | |
| aef36ac1 | 6049 | return val; |
| 4b85d634 AM |
6050 | } |
| 6051 | ||
| 0c8d6e5c | 6052 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6053 | |
| 729eabd5 | 6054 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6055 | if (relocs == NULL) |
| 6056 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6057 | /* PR 17512: file: df8e1fd6. */ |
| 6058 | if (relocs == NULL) | |
| 6059 | return (bfd_vma) -1; | |
| 645ea6a9 | 6060 | |
| 8387904d | 6061 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6062 | lo = relocs; |
| 8387904d | 6063 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6064 | val = (bfd_vma) -1; |
| 8387904d AM |
6065 | while (lo < hi) |
| 6066 | { | |
| 6067 | look = lo + (hi - lo) / 2; | |
| 6068 | if (look->r_offset < offset) | |
| 6069 | lo = look + 1; | |
| 6070 | else if (look->r_offset > offset) | |
| 6071 | hi = look; | |
| 6072 | else | |
| 6073 | { | |
| 0ffa91dd NC |
6074 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6075 | ||
| 8387904d AM |
6076 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6077 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6078 | { | |
| 6079 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6080 | asection *sec = NULL; |
| 8387904d | 6081 | |
| b53dfeb2 AM |
6082 | if (symndx >= symtab_hdr->sh_info |
| 6083 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6084 | { |
| 6085 | struct elf_link_hash_entry **sym_hashes; | |
| 6086 | struct elf_link_hash_entry *rh; | |
| 6087 | ||
| 6088 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6089 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6090 | if (rh != NULL) |
| 6091 | { | |
| 6092 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6093 | if (rh->root.type != bfd_link_hash_defined |
| 6094 | && rh->root.type != bfd_link_hash_defweak) | |
| 6095 | break; | |
| 6096 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6097 | { |
| bb854a36 AM |
6098 | val = rh->root.u.def.value; |
| 6099 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6100 | } |
| 6101 | } | |
| 6102 | } | |
| 6103 | ||
| 6104 | if (sec == NULL) | |
| 6105 | { | |
| 6106 | Elf_Internal_Sym *sym; | |
| 6107 | ||
| 6108 | if (symndx < symtab_hdr->sh_info) | |
| 6109 | { | |
| 6110 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6111 | if (sym == NULL) | |
| 6112 | { | |
| 6113 | size_t symcnt = symtab_hdr->sh_info; | |
| 6114 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6115 | symcnt, 0, | |
| 6116 | NULL, NULL, NULL); | |
| 6117 | if (sym == NULL) | |
| 6118 | break; | |
| 6119 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6120 | } | |
| 6121 | sym += symndx; | |
| 128205bb AM |
6122 | } |
| 6123 | else | |
| 6124 | { | |
| b53dfeb2 AM |
6125 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6126 | 1, symndx, | |
| 6127 | NULL, NULL, NULL); | |
| 128205bb AM |
6128 | if (sym == NULL) |
| 6129 | break; | |
| 128205bb | 6130 | } |
| b53dfeb2 AM |
6131 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6132 | if (sec == NULL) | |
| 6133 | break; | |
| 6134 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6135 | val = sym->st_value; | |
| 8387904d | 6136 | } |
| b53dfeb2 | 6137 | |
| 8387904d AM |
6138 | val += look->r_addend; |
| 6139 | if (code_off != NULL) | |
| 6140 | *code_off = val; | |
| 6141 | if (code_sec != NULL) | |
| aef36ac1 AM |
6142 | { |
| 6143 | if (in_code_sec && *code_sec != sec) | |
| 6144 | return -1; | |
| 6145 | else | |
| 6146 | *code_sec = sec; | |
| 6147 | } | |
| b53dfeb2 | 6148 | if (sec->output_section != NULL) |
| 8387904d | 6149 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6150 | } |
| 6151 | break; | |
| 6152 | } | |
| 6153 | } | |
| 645ea6a9 | 6154 | |
| 645ea6a9 | 6155 | return val; |
| 8387904d AM |
6156 | } |
| 6157 | ||
| aef36ac1 AM |
6158 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6159 | function size and set *CODE_OFF to the function's entry point, | |
| 6160 | otherwise return zero. */ | |
| 9f296da3 | 6161 | |
| aef36ac1 AM |
6162 | static bfd_size_type |
| 6163 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6164 | bfd_vma *code_off) | |
| 9f296da3 | 6165 | { |
| aef36ac1 AM |
6166 | bfd_size_type size; |
| 6167 | ||
| 6168 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6169 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6170 | return 0; | |
| 6171 | ||
| 6172 | size = 0; | |
| 6173 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6174 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6175 | ||
| 6176 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6177 | { |
| b07bca4e AM |
6178 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6179 | bfd_vma symval = sym->value; | |
| 6180 | ||
| 6181 | if (opd != NULL | |
| 6182 | && opd->adjust != NULL | |
| 6183 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6184 | { | |
| 6185 | /* opd_entry_value will use cached relocs that have been | |
| 6186 | adjusted, but with raw symbols. That means both local | |
| 6187 | and global symbols need adjusting. */ | |
| 6188 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6189 | if (adjust == -1) | |
| 6190 | return 0; | |
| 6191 | symval += adjust; | |
| 6192 | } | |
| 6193 | ||
| 6194 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6195 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6196 | return 0; | |
| 6197 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6198 | symbol. This size has nothing to do with the code size of the | |
| 6199 | function, which is what we're supposed to return, but the | |
| 6200 | code size isn't available without looking up the dot-sym. | |
| 6201 | However, doing that would be a waste of time particularly | |
| 6202 | since elf_find_function will look at the dot-sym anyway. | |
| 6203 | Now, elf_find_function will keep the largest size of any | |
| 6204 | function sym found at the code address of interest, so return | |
| 6205 | 1 here to avoid it incorrectly caching a larger function size | |
| 6206 | for a small function. This does mean we return the wrong | |
| 6207 | size for a new-ABI function of size 24, but all that does is | |
| 6208 | disable caching for such functions. */ | |
| 6209 | if (size == 24) | |
| 6210 | size = 1; | |
| 9f296da3 | 6211 | } |
| aef36ac1 AM |
6212 | else |
| 6213 | { | |
| 6214 | if (sym->section != sec) | |
| 6215 | return 0; | |
| 6216 | *code_off = sym->value; | |
| 6217 | } | |
| 6218 | if (size == 0) | |
| 6219 | size = 1; | |
| 6220 | return size; | |
| 9f296da3 AM |
6221 | } |
| 6222 | ||
| 854b41e7 AM |
6223 | /* Return true if symbol is defined in a regular object file. */ |
| 6224 | ||
| 6225 | static bfd_boolean | |
| 6226 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6227 | { | |
| 6228 | return ((h->root.type == bfd_link_hash_defined | |
| 6229 | || h->root.type == bfd_link_hash_defweak) | |
| 6230 | && h->root.u.def.section != NULL | |
| 6231 | && h->root.u.def.section->output_section != NULL); | |
| 6232 | } | |
| 6233 | ||
| b31867b6 AM |
6234 | /* If FDH is a function descriptor symbol, return the associated code |
| 6235 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6236 | ||
| 6237 | static struct ppc_link_hash_entry * | |
| 6238 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6239 | { | |
| 6240 | if (fdh->is_func_descriptor) | |
| 6241 | { | |
| 6242 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6243 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6244 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6245 | return fh; | |
| 6246 | } | |
| 6247 | return NULL; | |
| 6248 | } | |
| 6249 | ||
| 6250 | /* If FH is a function code entry symbol, return the associated | |
| 6251 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6252 | ||
| 6253 | static struct ppc_link_hash_entry * | |
| 6254 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6255 | { | |
| 6256 | if (fh->oh != NULL | |
| 6257 | && fh->oh->is_func_descriptor) | |
| 6258 | { | |
| 6259 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6260 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6261 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6262 | return fdh; | |
| 6263 | } | |
| 6264 | return NULL; | |
| 6265 | } | |
| 6266 | ||
| 74f0fb50 AM |
6267 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6268 | ||
| 6269 | static void | |
| 6270 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6271 | { | |
| 6272 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6273 | struct bfd_sym_chain *sym; | |
| 6274 | ||
| 4dfe6ac6 NC |
6275 | if (htab == NULL) |
| 6276 | return; | |
| 6277 | ||
| 74f0fb50 AM |
6278 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6279 | { | |
| b31867b6 | 6280 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6281 | asection *sec; |
| 6282 | ||
| 6283 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6284 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6285 | if (eh == NULL) |
| 6286 | continue; | |
| 6287 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6288 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6289 | continue; | |
| 6290 | ||
| b31867b6 AM |
6291 | fh = defined_code_entry (eh); |
| 6292 | if (fh != NULL) | |
| 74f0fb50 | 6293 | { |
| b31867b6 | 6294 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6295 | sec->flags |= SEC_KEEP; |
| 6296 | } | |
| 6297 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6298 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6299 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6300 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6301 | sec->flags |= SEC_KEEP; |
| 6302 | ||
| 6303 | sec = eh->elf.root.u.def.section; | |
| 6304 | sec->flags |= SEC_KEEP; | |
| 6305 | } | |
| 6306 | } | |
| 6307 | ||
| 64d03ab5 AM |
6308 | /* Mark sections containing dynamically referenced symbols. When |
| 6309 | building shared libraries, we must assume that any visible symbol is | |
| 6310 | referenced. */ | |
| 6311 | ||
| 6312 | static bfd_boolean | |
| 6313 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6314 | { | |
| 6315 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6316 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6317 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6318 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6319 | |
| 64d03ab5 | 6320 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6321 | fdh = defined_func_desc (eh); |
| 6322 | if (fdh != NULL) | |
| 6323 | eh = fdh; | |
| 64d03ab5 AM |
6324 | |
| 6325 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6326 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6327 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6328 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6329 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6330 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6331 | && (!bfd_link_executable (info) |
| b407645f AM |
6332 | || info->export_dynamic |
| 6333 | || (eh->elf.dynamic | |
| 6334 | && d != NULL | |
| 6335 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6336 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6337 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6338 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6339 | { |
| 6340 | asection *code_sec; | |
| b31867b6 | 6341 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6342 | |
| 6343 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6344 | ||
| 6345 | /* Function descriptor syms cause the associated | |
| 6346 | function code sym section to be marked. */ | |
| b31867b6 AM |
6347 | fh = defined_code_entry (eh); |
| 6348 | if (fh != NULL) | |
| 6349 | { | |
| 6350 | code_sec = fh->elf.root.u.def.section; | |
| 6351 | code_sec->flags |= SEC_KEEP; | |
| 6352 | } | |
| 64d03ab5 AM |
6353 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6354 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6355 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6356 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6357 | code_sec->flags |= SEC_KEEP; |
| 6358 | } | |
| 6359 | ||
| 6360 | return TRUE; | |
| 6361 | } | |
| 6362 | ||
| 5bd4f169 AM |
6363 | /* Return the section that should be marked against GC for a given |
| 6364 | relocation. */ | |
| 6365 | ||
| 6366 | static asection * | |
| 4ce794b7 | 6367 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6368 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6369 | Elf_Internal_Rela *rel, |
| 6370 | struct elf_link_hash_entry *h, | |
| 6371 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6372 | { |
| ccfa59ea AM |
6373 | asection *rsec; |
| 6374 | ||
| ccfa59ea AM |
6375 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6376 | function sections, as all functions are referenced in .opd. */ | |
| 6377 | rsec = NULL; | |
| 6378 | if (get_opd_info (sec) != NULL) | |
| 6379 | return rsec; | |
| 1e2f5b6e | 6380 | |
| 5bd4f169 AM |
6381 | if (h != NULL) |
| 6382 | { | |
| 04c9666a | 6383 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6384 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6385 | |
| 4ce794b7 | 6386 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6387 | switch (r_type) |
| 5bd4f169 AM |
6388 | { |
| 6389 | case R_PPC64_GNU_VTINHERIT: | |
| 6390 | case R_PPC64_GNU_VTENTRY: | |
| 6391 | break; | |
| 6392 | ||
| 6393 | default: | |
| 6394 | switch (h->root.type) | |
| 6395 | { | |
| 6396 | case bfd_link_hash_defined: | |
| 6397 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6398 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6399 | fdh = defined_func_desc (eh); |
| 6400 | if (fdh != NULL) | |
| 6401 | eh = fdh; | |
| 1e2f5b6e AM |
6402 | |
| 6403 | /* Function descriptor syms cause the associated | |
| 6404 | function code sym section to be marked. */ | |
| b31867b6 AM |
6405 | fh = defined_code_entry (eh); |
| 6406 | if (fh != NULL) | |
| ccfa59ea AM |
6407 | { |
| 6408 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6409 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6410 | |
| b31867b6 | 6411 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6412 | } |
| 8387904d AM |
6413 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6414 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6415 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6416 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6417 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6418 | else |
| 1e2f5b6e AM |
6419 | rsec = h->root.u.def.section; |
| 6420 | break; | |
| 5bd4f169 AM |
6421 | |
| 6422 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6423 | rsec = h->root.u.c.p->section; |
| 6424 | break; | |
| 5bd4f169 AM |
6425 | |
| 6426 | default: | |
| fb34365b | 6427 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6428 | } |
| 6429 | } | |
| 6430 | } | |
| 6431 | else | |
| 6432 | { | |
| 74f0fb50 | 6433 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6434 | |
| 6435 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6436 | opd = get_opd_info (rsec); |
| 6437 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6438 | { |
| 74f0fb50 | 6439 | rsec->gc_mark = 1; |
| ccfa59ea | 6440 | |
| 51aecdc5 | 6441 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6442 | } |
| 5bd4f169 AM |
6443 | } |
| 6444 | ||
| 1e2f5b6e | 6445 | return rsec; |
| 5bd4f169 AM |
6446 | } |
| 6447 | ||
| 65f38f15 AM |
6448 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6449 | section being removed. */ | |
| 5bd4f169 | 6450 | |
| b34976b6 | 6451 | static bfd_boolean |
| 4ce794b7 AM |
6452 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6453 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6454 | { |
| 411e1bfb | 6455 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6456 | Elf_Internal_Shdr *symtab_hdr; |
| 6457 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6458 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6459 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6460 | |
| 0e1862bb | 6461 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6462 | return TRUE; |
| 6463 | ||
| 680a3378 AM |
6464 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6465 | return TRUE; | |
| 6466 | ||
| ec338859 AM |
6467 | elf_section_data (sec)->local_dynrel = NULL; |
| 6468 | ||
| 411e1bfb | 6469 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6470 | if (htab == NULL) |
| 6471 | return FALSE; | |
| 6472 | ||
| 0ffa91dd | 6473 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6474 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6475 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6476 | |
| 6477 | relend = relocs + sec->reloc_count; | |
| 6478 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6479 | { |
| 6480 | unsigned long r_symndx; | |
| 04c9666a | 6481 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6482 | struct elf_link_hash_entry *h = NULL; |
| f961d9dd | 6483 | unsigned char tls_type = 0; |
| 5bd4f169 | 6484 | |
| a33d1f77 | 6485 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6486 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6487 | if (r_symndx >= symtab_hdr->sh_info) |
| 6488 | { | |
| 6489 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6490 | struct elf_dyn_relocs **pp; |
| 6491 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6492 | |
| 6493 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6494 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6495 | eh = (struct ppc_link_hash_entry *) h; |
| 6496 | ||
| 6497 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6498 | if (p->sec == sec) | |
| 6499 | { | |
| 6500 | /* Everything must go for SEC. */ | |
| 6501 | *pp = p->next; | |
| 6502 | break; | |
| 6503 | } | |
| 6504 | } | |
| 6505 | ||
| e054468f AM |
6506 | if (is_branch_reloc (r_type)) |
| 6507 | { | |
| 6508 | struct plt_entry **ifunc = NULL; | |
| 6509 | if (h != NULL) | |
| 6510 | { | |
| 6511 | if (h->type == STT_GNU_IFUNC) | |
| 6512 | ifunc = &h->plt.plist; | |
| 6513 | } | |
| 6514 | else if (local_got_ents != NULL) | |
| 6515 | { | |
| 6516 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6517 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 6518 | unsigned char *local_got_tls_masks = (unsigned char *) |
| e054468f AM |
6519 | (local_plt + symtab_hdr->sh_info); |
| 6520 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6521 | ifunc = local_plt + r_symndx; | |
| 6522 | } | |
| 6523 | if (ifunc != NULL) | |
| 6524 | { | |
| 6525 | struct plt_entry *ent; | |
| 6526 | ||
| 6527 | for (ent = *ifunc; ent != NULL; ent = ent->next) | |
| 6528 | if (ent->addend == rel->r_addend) | |
| 6529 | break; | |
| 6530 | if (ent == NULL) | |
| 6531 | abort (); | |
| 6532 | if (ent->plt.refcount > 0) | |
| 6533 | ent->plt.refcount -= 1; | |
| 6534 | continue; | |
| 6535 | } | |
| 6536 | } | |
| 6537 | ||
| a33d1f77 AM |
6538 | switch (r_type) |
| 6539 | { | |
| 411e1bfb AM |
6540 | case R_PPC64_GOT_TLSLD16: |
| 6541 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6542 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6543 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6544 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6545 | goto dogot; |
| 6546 | ||
| 6547 | case R_PPC64_GOT_TLSGD16: | |
| 6548 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6549 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6550 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6551 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6552 | goto dogot; |
| 6553 | ||
| 6554 | case R_PPC64_GOT_TPREL16_DS: | |
| 6555 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6556 | case R_PPC64_GOT_TPREL16_HI: | |
| 6557 | case R_PPC64_GOT_TPREL16_HA: | |
| 6558 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6559 | goto dogot; | |
| 6560 | ||
| 6561 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6562 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6563 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6564 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6565 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6566 | goto dogot; | |
| 6567 | ||
| a33d1f77 AM |
6568 | case R_PPC64_GOT16: |
| 6569 | case R_PPC64_GOT16_DS: | |
| 6570 | case R_PPC64_GOT16_HA: | |
| 6571 | case R_PPC64_GOT16_HI: | |
| 6572 | case R_PPC64_GOT16_LO: | |
| 6573 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6574 | dogot: |
| 6575 | { | |
| 6576 | struct got_entry *ent; | |
| 6577 | ||
| 58ac9f71 AM |
6578 | if (h != NULL) |
| 6579 | ent = h->got.glist; | |
| 411e1bfb AM |
6580 | else |
| 6581 | ent = local_got_ents[r_symndx]; | |
| 6582 | ||
| 6583 | for (; ent != NULL; ent = ent->next) | |
| 6584 | if (ent->addend == rel->r_addend | |
| e717da7e | 6585 | && ent->owner == abfd |
| 411e1bfb AM |
6586 | && ent->tls_type == tls_type) |
| 6587 | break; | |
| 6588 | if (ent == NULL) | |
| 6589 | abort (); | |
| 6590 | if (ent->got.refcount > 0) | |
| 6591 | ent->got.refcount -= 1; | |
| 6592 | } | |
| a33d1f77 | 6593 | break; |
| 65f38f15 | 6594 | |
| a33d1f77 AM |
6595 | case R_PPC64_PLT16_HA: |
| 6596 | case R_PPC64_PLT16_HI: | |
| 6597 | case R_PPC64_PLT16_LO: | |
| 6598 | case R_PPC64_PLT32: | |
| 6599 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6600 | case R_PPC64_REL14: |
| 6601 | case R_PPC64_REL14_BRNTAKEN: | |
| 6602 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6603 | case R_PPC64_REL24: |
| 58ac9f71 | 6604 | if (h != NULL) |
| 5d1634d7 | 6605 | { |
| 411e1bfb AM |
6606 | struct plt_entry *ent; |
| 6607 | ||
| 411e1bfb AM |
6608 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 6609 | if (ent->addend == rel->r_addend) | |
| 6610 | break; | |
| 7c6c1722 | 6611 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6612 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6613 | } |
| e86ce104 | 6614 | break; |
| 5d1634d7 | 6615 | |
| a33d1f77 AM |
6616 | default: |
| 6617 | break; | |
| 6618 | } | |
| 6619 | } | |
| b34976b6 | 6620 | return TRUE; |
| 5bd4f169 AM |
6621 | } |
| 6622 | ||
| deb0e272 AM |
6623 | /* The maximum size of .sfpr. */ |
| 6624 | #define SFPR_MAX (218*4) | |
| 6625 | ||
| 6626 | struct sfpr_def_parms | |
| 6627 | { | |
| 699733f6 AM |
6628 | const char name[12]; |
| 6629 | unsigned char lo, hi; | |
| deb0e272 AM |
6630 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6631 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6632 | }; | |
| 6633 | ||
| a4b6fadd AM |
6634 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6635 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6636 | instead. */ | |
| deb0e272 | 6637 | |
| 4dfe6ac6 | 6638 | static bfd_boolean |
| a4b6fadd AM |
6639 | sfpr_define (struct bfd_link_info *info, |
| 6640 | const struct sfpr_def_parms *parm, | |
| 6641 | asection *stub_sec) | |
| deb0e272 AM |
6642 | { |
| 6643 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6644 | unsigned int i; | |
| 6645 | size_t len = strlen (parm->name); | |
| 6646 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6647 | char sym[16]; |
| deb0e272 | 6648 | |
| 4dfe6ac6 NC |
6649 | if (htab == NULL) |
| 6650 | return FALSE; | |
| 6651 | ||
| deb0e272 AM |
6652 | memcpy (sym, parm->name, len); |
| 6653 | sym[len + 2] = 0; | |
| 6654 | ||
| 6655 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6656 | { | |
| a4b6fadd | 6657 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6658 | |
| 6659 | sym[len + 0] = i / 10 + '0'; | |
| 6660 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd AM |
6661 | h = (struct ppc_link_hash_entry *) |
| 6662 | elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
| 6663 | if (stub_sec != NULL) | |
| deb0e272 | 6664 | { |
| a4b6fadd AM |
6665 | if (h != NULL |
| 6666 | && h->elf.root.type == bfd_link_hash_defined | |
| 6667 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6668 | { | |
| 6669 | struct elf_link_hash_entry *s; | |
| 6670 | char buf[32]; | |
| 6671 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6672 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6673 | if (s == NULL) | |
| 6674 | return FALSE; | |
| 6675 | if (s->root.type == bfd_link_hash_new | |
| 6676 | || (s->root.type = bfd_link_hash_defined | |
| 6677 | && s->root.u.def.section == stub_sec)) | |
| 6678 | { | |
| 6679 | s->root.type = bfd_link_hash_defined; | |
| 6680 | s->root.u.def.section = stub_sec; | |
| 6681 | s->root.u.def.value = (stub_sec->size | |
| 6682 | + h->elf.root.u.def.value); | |
| 6683 | s->ref_regular = 1; | |
| 6684 | s->def_regular = 1; | |
| 6685 | s->ref_regular_nonweak = 1; | |
| 6686 | s->forced_local = 1; | |
| 6687 | s->non_elf = 0; | |
| 6688 | s->root.linker_def = 1; | |
| 6689 | } | |
| 6690 | } | |
| 6691 | continue; | |
| 6692 | } | |
| 6693 | if (h != NULL) | |
| 6694 | { | |
| 6695 | h->save_res = 1; | |
| 6696 | if (!h->elf.def_regular) | |
| deb0e272 | 6697 | { |
| a4b6fadd AM |
6698 | h->elf.root.type = bfd_link_hash_defined; |
| 6699 | h->elf.root.u.def.section = htab->sfpr; | |
| 6700 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6701 | h->elf.type = STT_FUNC; | |
| 6702 | h->elf.def_regular = 1; | |
| 6703 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); | |
| 6704 | writing = TRUE; | |
| deb0e272 | 6705 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6706 | { |
| 6707 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6708 | if (htab->sfpr->contents == NULL) | |
| 6709 | return FALSE; | |
| 6710 | } | |
| deb0e272 AM |
6711 | } |
| 6712 | } | |
| 6713 | if (writing) | |
| 6714 | { | |
| 6715 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6716 | if (i != parm->hi) | |
| 6717 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6718 | else | |
| 6719 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6720 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6721 | } | |
| 6722 | } | |
| 6723 | ||
| 6724 | return TRUE; | |
| 6725 | } | |
| 6726 | ||
| 6727 | static bfd_byte * | |
| 6728 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6729 | { | |
| 6730 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6731 | return p + 4; | |
| 6732 | } | |
| 6733 | ||
| 6734 | static bfd_byte * | |
| 6735 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6736 | { | |
| 6737 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6738 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6739 | p = p + 4; |
| 6740 | bfd_put_32 (abfd, BLR, p); | |
| 6741 | return p + 4; | |
| 6742 | } | |
| 6743 | ||
| 6744 | static bfd_byte * | |
| 6745 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6746 | { | |
| 6747 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6748 | return p + 4; | |
| 6749 | } | |
| 6750 | ||
| 6751 | static bfd_byte * | |
| 6752 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6753 | { | |
| a078d95a | 6754 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6755 | p = p + 4; |
| 6756 | p = restgpr0 (abfd, p, r); | |
| 6757 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6758 | p = p + 4; | |
| 6759 | if (r == 29) | |
| 6760 | { | |
| 6761 | p = restgpr0 (abfd, p, 30); | |
| 6762 | p = restgpr0 (abfd, p, 31); | |
| 6763 | } | |
| 6764 | bfd_put_32 (abfd, BLR, p); | |
| 6765 | return p + 4; | |
| 6766 | } | |
| 6767 | ||
| 6768 | static bfd_byte * | |
| 6769 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6770 | { | |
| 6771 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6772 | return p + 4; | |
| 6773 | } | |
| 6774 | ||
| 6775 | static bfd_byte * | |
| 6776 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6777 | { | |
| 6778 | p = savegpr1 (abfd, p, r); | |
| 6779 | bfd_put_32 (abfd, BLR, p); | |
| 6780 | return p + 4; | |
| 6781 | } | |
| 6782 | ||
| 6783 | static bfd_byte * | |
| 6784 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6785 | { | |
| 6786 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6787 | return p + 4; | |
| 6788 | } | |
| 6789 | ||
| 6790 | static bfd_byte * | |
| 6791 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6792 | { | |
| 6793 | p = restgpr1 (abfd, p, r); | |
| 6794 | bfd_put_32 (abfd, BLR, p); | |
| 6795 | return p + 4; | |
| 6796 | } | |
| 6797 | ||
| 6798 | static bfd_byte * | |
| 6799 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6800 | { | |
| 6801 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6802 | return p + 4; | |
| 6803 | } | |
| 6804 | ||
| 6805 | static bfd_byte * | |
| 6806 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6807 | { | |
| 6808 | p = savefpr (abfd, p, r); | |
| a078d95a | 6809 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6810 | p = p + 4; |
| 6811 | bfd_put_32 (abfd, BLR, p); | |
| 6812 | return p + 4; | |
| 6813 | } | |
| 6814 | ||
| 6815 | static bfd_byte * | |
| 6816 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6817 | { | |
| 6818 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6819 | return p + 4; | |
| 6820 | } | |
| 6821 | ||
| 6822 | static bfd_byte * | |
| 6823 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6824 | { | |
| a078d95a | 6825 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6826 | p = p + 4; |
| 6827 | p = restfpr (abfd, p, r); | |
| 6828 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6829 | p = p + 4; | |
| 6830 | if (r == 29) | |
| 6831 | { | |
| 6832 | p = restfpr (abfd, p, 30); | |
| 6833 | p = restfpr (abfd, p, 31); | |
| 6834 | } | |
| 6835 | bfd_put_32 (abfd, BLR, p); | |
| 6836 | return p + 4; | |
| 6837 | } | |
| 6838 | ||
| 6839 | static bfd_byte * | |
| 6840 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6841 | { | |
| 6842 | p = savefpr (abfd, p, r); | |
| 6843 | bfd_put_32 (abfd, BLR, p); | |
| 6844 | return p + 4; | |
| 6845 | } | |
| 6846 | ||
| 6847 | static bfd_byte * | |
| 6848 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6849 | { | |
| 6850 | p = restfpr (abfd, p, r); | |
| 6851 | bfd_put_32 (abfd, BLR, p); | |
| 6852 | return p + 4; | |
| 6853 | } | |
| 6854 | ||
| 6855 | static bfd_byte * | |
| 6856 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6857 | { | |
| 6858 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6859 | p = p + 4; | |
| 6860 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6861 | return p + 4; | |
| 6862 | } | |
| 6863 | ||
| 6864 | static bfd_byte * | |
| 6865 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6866 | { | |
| 6867 | p = savevr (abfd, p, r); | |
| 6868 | bfd_put_32 (abfd, BLR, p); | |
| 6869 | return p + 4; | |
| 6870 | } | |
| 6871 | ||
| 6872 | static bfd_byte * | |
| 6873 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6874 | { | |
| 6875 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6876 | p = p + 4; | |
| 6877 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6878 | return p + 4; | |
| 6879 | } | |
| 6880 | ||
| 6881 | static bfd_byte * | |
| 6882 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6883 | { | |
| 6884 | p = restvr (abfd, p, r); | |
| 6885 | bfd_put_32 (abfd, BLR, p); | |
| 6886 | return p + 4; | |
| 6887 | } | |
| 6888 | ||
| e86ce104 AM |
6889 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6890 | information on function code symbol entries to their corresponding | |
| 6891 | function descriptor symbol entries. */ | |
| deb0e272 | 6892 | |
| b34976b6 | 6893 | static bfd_boolean |
| 4ce794b7 | 6894 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6895 | { |
| e86ce104 | 6896 | struct bfd_link_info *info; |
| 65f38f15 | 6897 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6898 | struct plt_entry *ent; |
| 50bc7936 AM |
6899 | struct ppc_link_hash_entry *fh; |
| 6900 | struct ppc_link_hash_entry *fdh; | |
| 6901 | bfd_boolean force_local; | |
| 5bd4f169 | 6902 | |
| 50bc7936 AM |
6903 | fh = (struct ppc_link_hash_entry *) h; |
| 6904 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6905 | return TRUE; |
| e86ce104 | 6906 | |
| 4ce794b7 | 6907 | info = inf; |
| 65f38f15 | 6908 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6909 | if (htab == NULL) |
| 6910 | return FALSE; | |
| 5bd4f169 | 6911 | |
| c09bdfe5 AM |
6912 | /* Resolve undefined references to dot-symbols as the value |
| 6913 | in the function descriptor, if we have one in a regular object. | |
| 6914 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6915 | in dynamic objects are handled elsewhere. */ | |
| 6916 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6917 | && fh->was_undefined | |
| b31867b6 AM |
6918 | && (fdh = defined_func_desc (fh)) != NULL |
| 6919 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6920 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6921 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6922 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6923 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6924 | { |
| b31867b6 | 6925 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6926 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6927 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6928 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6929 | } |
| 6930 | ||
| e86ce104 AM |
6931 | /* If this is a function code symbol, transfer dynamic linking |
| 6932 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6933 | if (!fh->is_func) |
| b34976b6 | 6934 | return TRUE; |
| e86ce104 | 6935 | |
| 50bc7936 | 6936 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6937 | if (ent->plt.refcount > 0) |
| 6938 | break; | |
| 50bc7936 AM |
6939 | if (ent == NULL |
| 6940 | || fh->elf.root.root.string[0] != '.' | |
| 6941 | || fh->elf.root.root.string[1] == '\0') | |
| 6942 | return TRUE; | |
| 5bd4f169 | 6943 | |
| 50bc7936 AM |
6944 | /* Find the corresponding function descriptor symbol. Create it |
| 6945 | as undefined if necessary. */ | |
| 5bd4f169 | 6946 | |
| b31867b6 | 6947 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6948 | if (fdh == NULL |
| 0e1862bb | 6949 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6950 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6951 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6952 | { | |
| 908b32fc | 6953 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6954 | if (fdh == NULL) |
| 6955 | return FALSE; | |
| 50bc7936 | 6956 | } |
| 648cca2c | 6957 | |
| 908b32fc | 6958 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6959 | code symbol is strong undefined, make the fake sym the same. |
| 6960 | If the function code symbol is defined, then force the fake | |
| 6961 | descriptor local; We can't support overriding of symbols in a | |
| 6962 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6963 | |
| 6964 | if (fdh != NULL | |
| 6965 | && fdh->fake | |
| 433817dd | 6966 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6967 | { |
| 433817dd AM |
6968 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6969 | { | |
| 6970 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6971 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6972 | } | |
| 6973 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6974 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6975 | { | |
| 6976 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6977 | } | |
| 908b32fc AM |
6978 | } |
| 6979 | ||
| 50bc7936 | 6980 | if (fdh != NULL |
| f5385ebf | 6981 | && !fdh->elf.forced_local |
| 0e1862bb | 6982 | && (!bfd_link_executable (info) |
| f5385ebf AM |
6983 | || fdh->elf.def_dynamic |
| 6984 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6985 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6986 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6987 | { | |
| 6988 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 6989 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 6990 | return FALSE; |
| f5385ebf AM |
6991 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6992 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6993 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6994 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 6995 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 6996 | { |
| 40d16e0b | 6997 | move_plt_plist (fh, fdh); |
| f5385ebf | 6998 | fdh->elf.needs_plt = 1; |
| e86ce104 | 6999 | } |
| 50bc7936 | 7000 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
7001 | fdh->oh = fh; |
| 7002 | fh->oh = fdh; | |
| e86ce104 AM |
7003 | } |
| 7004 | ||
| 50bc7936 AM |
7005 | /* Now that the info is on the function descriptor, clear the |
| 7006 | function code sym info. Any function code syms for which we | |
| 7007 | don't have a definition in a regular file, we force local. | |
| 7008 | This prevents a shared library from exporting syms that have | |
| 7009 | been imported from another library. Function code syms that | |
| 7010 | are really in the library we must leave global to prevent the | |
| 7011 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7012 | force_local = (!fh->elf.def_regular |
| 7013 | || fdh == NULL | |
| 7014 | || !fdh->elf.def_regular | |
| 7015 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7016 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7017 | ||
| b34976b6 | 7018 | return TRUE; |
| e86ce104 | 7019 | } |
| 40b8271b | 7020 | |
| a4b6fadd AM |
7021 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7022 | { | |
| 7023 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7024 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7025 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7026 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7027 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7028 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7029 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7030 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7031 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7032 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7033 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7034 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7035 | }; | |
| 7036 | ||
| e86ce104 | 7037 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7038 | this hook to a) provide some gcc support functions, and b) transfer |
| 7039 | dynamic linking information gathered so far on function code symbol | |
| 7040 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7041 | |
| b34976b6 | 7042 | static bfd_boolean |
| 4ce794b7 AM |
7043 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7044 | struct bfd_link_info *info) | |
| e86ce104 AM |
7045 | { |
| 7046 | struct ppc_link_hash_table *htab; | |
| 82bd7b59 | 7047 | unsigned int i; |
| e86ce104 AM |
7048 | |
| 7049 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7050 | if (htab == NULL) |
| 7051 | return FALSE; | |
| 7052 | ||
| 0e1862bb | 7053 | if (!bfd_link_relocatable (info) |
| 5295321c | 7054 | && htab->elf.hgot != NULL) |
| dba6fa9b AM |
7055 | { |
| 7056 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7057 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7058 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7059 | if (!htab->elf.hgot->def_regular |
| 7060 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7061 | { | |
| 7062 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7063 | htab->elf.hgot->root.u.def.value = 0; | |
| 7064 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7065 | htab->elf.hgot->def_regular = 1; | |
| 7066 | htab->elf.hgot->root.linker_def = 1; | |
| 7067 | } | |
| dba6fa9b | 7068 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7069 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7070 | | STV_HIDDEN); | |
| 7071 | } | |
| c66bb0ee | 7072 | |
| 82bd7b59 AM |
7073 | if (htab->sfpr == NULL) |
| 7074 | /* We don't have any relocs. */ | |
| b34976b6 | 7075 | return TRUE; |
| 82bd7b59 | 7076 | |
| deb0e272 AM |
7077 | /* Provide any missing _save* and _rest* functions. */ |
| 7078 | htab->sfpr->size = 0; | |
| 7d4c687d | 7079 | if (htab->params->save_restore_funcs) |
| a4b6fadd AM |
7080 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) |
| 7081 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 27fc25a1 | 7082 | return FALSE; |
| 82bd7b59 | 7083 | |
| 4ce794b7 | 7084 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 7085 | |
| eea6121a | 7086 | if (htab->sfpr->size == 0) |
| 8423293d | 7087 | htab->sfpr->flags |= SEC_EXCLUDE; |
| 82bd7b59 | 7088 | |
| b34976b6 | 7089 | return TRUE; |
| e86ce104 AM |
7090 | } |
| 7091 | ||
| a345bc8d AM |
7092 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
| 7093 | ||
| 7094 | static bfd_boolean | |
| 7095 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7096 | { | |
| 7097 | struct ppc_link_hash_entry *eh; | |
| 7098 | struct elf_dyn_relocs *p; | |
| 7099 | ||
| 7100 | eh = (struct ppc_link_hash_entry *) h; | |
| 7101 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7102 | { | |
| 7103 | asection *s = p->sec->output_section; | |
| 7104 | ||
| 7105 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7106 | return TRUE; | |
| 7107 | } | |
| 7108 | return FALSE; | |
| 7109 | } | |
| 7110 | ||
| e86ce104 AM |
7111 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7112 | regular object. The current definition is in some section of the | |
| 7113 | dynamic object, but we're not including those sections. We have to | |
| 7114 | change the definition to something the rest of the link can | |
| 7115 | understand. */ | |
| 7116 | ||
| b34976b6 | 7117 | static bfd_boolean |
| 4ce794b7 AM |
7118 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7119 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7120 | { |
| 7121 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7122 | asection *s; |
| e86ce104 AM |
7123 | |
| 7124 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7125 | if (htab == NULL) |
| 7126 | return FALSE; | |
| e86ce104 AM |
7127 | |
| 7128 | /* Deal with function syms. */ | |
| 7129 | if (h->type == STT_FUNC | |
| e054468f | 7130 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7131 | || h->needs_plt) |
| e86ce104 AM |
7132 | { |
| 7133 | /* Clear procedure linkage table information for any symbol that | |
| 7134 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7135 | struct plt_entry *ent; |
| 7136 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7137 | if (ent->plt.refcount > 0) | |
| 7138 | break; | |
| 8387904d | 7139 | if (ent == NULL |
| e054468f AM |
7140 | || (h->type != STT_GNU_IFUNC |
| 7141 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7142 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| a4b6fadd AM |
7143 | && h->root.type == bfd_link_hash_undefweak))) |
| 7144 | || ((struct ppc_link_hash_entry *) h)->save_res) | |
| 40b8271b | 7145 | { |
| 411e1bfb | 7146 | h->plt.plist = NULL; |
| f5385ebf | 7147 | h->needs_plt = 0; |
| d1eca1e4 | 7148 | h->pointer_equality_needed = 0; |
| 40b8271b | 7149 | } |
| a345bc8d AM |
7150 | else if (abiversion (info->output_bfd) == 2) |
| 7151 | { | |
| d1eca1e4 AM |
7152 | /* Taking a function's address in a read/write section |
| 7153 | doesn't require us to define the function symbol in the | |
| 7154 | executable on a global entry stub. A dynamic reloc can | |
| 7155 | be used instead. */ | |
| 7156 | if (h->pointer_equality_needed | |
| 1009ef28 | 7157 | && h->type != STT_GNU_IFUNC |
| d1eca1e4 AM |
7158 | && !readonly_dynrelocs (h)) |
| 7159 | { | |
| 7160 | h->pointer_equality_needed = 0; | |
| 7161 | h->non_got_ref = 0; | |
| 7162 | } | |
| 7163 | ||
| a345bc8d AM |
7164 | /* After adjust_dynamic_symbol, non_got_ref set in the |
| 7165 | non-shared case means that we have allocated space in | |
| 7166 | .dynbss for the symbol and thus dyn_relocs for this | |
| 7167 | symbol should be discarded. | |
| 7168 | If we get here we know we are making a PLT entry for this | |
| 7169 | symbol, and in an executable we'd normally resolve | |
| 7170 | relocations against this symbol to the PLT entry. Allow | |
| 7171 | dynamic relocs if the reference is weak, and the dynamic | |
| 7172 | relocs will not cause text relocation. */ | |
| d1eca1e4 AM |
7173 | else if (!h->ref_regular_nonweak |
| 7174 | && h->non_got_ref | |
| 7175 | && h->type != STT_GNU_IFUNC | |
| 7176 | && !readonly_dynrelocs (h)) | |
| a345bc8d AM |
7177 | h->non_got_ref = 0; |
| 7178 | ||
| 7179 | /* If making a plt entry, then we don't need copy relocs. */ | |
| 7180 | return TRUE; | |
| 7181 | } | |
| 5bd4f169 | 7182 | } |
| bbd7ec4a | 7183 | else |
| 411e1bfb | 7184 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7185 | |
| 7186 | /* If this is a weak symbol, and there is a real definition, the | |
| 7187 | processor independent code will have arranged for us to see the | |
| 7188 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7189 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7190 | { |
| f6e332e6 AM |
7191 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7192 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7193 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7194 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7195 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7196 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7197 | return TRUE; |
| 5bd4f169 AM |
7198 | } |
| 7199 | ||
| 5bd4f169 AM |
7200 | /* If we are creating a shared library, we must presume that the |
| 7201 | only references to the symbol are via the global offset table. | |
| 7202 | For such cases we need not do anything here; the relocations will | |
| 7203 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7204 | if (bfd_link_pic (info)) |
| b34976b6 | 7205 | return TRUE; |
| 5bd4f169 | 7206 | |
| 65f38f15 AM |
7207 | /* If there are no references to this symbol that do not use the |
| 7208 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7209 | if (!h->non_got_ref) |
| b34976b6 | 7210 | return TRUE; |
| 65f38f15 | 7211 | |
| b186458a JJ |
7212 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 7213 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 7214 | return TRUE; | |
| 7215 | ||
| a127494f AM |
7216 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7217 | if (info->nocopyreloc) | |
| 7218 | { | |
| 7219 | h->non_got_ref = 0; | |
| 7220 | return TRUE; | |
| 7221 | } | |
| 7222 | ||
| a345bc8d AM |
7223 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7224 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 7225 | if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h)) | |
| 65f38f15 | 7226 | { |
| a345bc8d AM |
7227 | h->non_got_ref = 0; |
| 7228 | return TRUE; | |
| 65f38f15 AM |
7229 | } |
| 7230 | ||
| a127494f AM |
7231 | /* Protected variables do not work with .dynbss. The copy in |
| 7232 | .dynbss won't be used by the shared library with the protected | |
| 7233 | definition for the variable. Text relocations are preferable | |
| 7234 | to an incorrect program. */ | |
| 7235 | if (h->protected_def) | |
| 7236 | { | |
| 7237 | h->non_got_ref = 0; | |
| 7238 | return TRUE; | |
| 7239 | } | |
| 7240 | ||
| 5d35169e | 7241 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7242 | { |
| 7243 | /* We should never get here, but unfortunately there are versions | |
| 7244 | of gcc out there that improperly (for this ABI) put initialized | |
| 7245 | function pointers, vtable refs and suchlike in read-only | |
| 7246 | sections. Allow them to proceed, but warn that this might | |
| 7247 | break at runtime. */ | |
| 25f53a85 | 7248 | info->callbacks->einfo |
| bc30df16 | 7249 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7250 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7251 | h->root.root.string); |
| 7252 | } | |
| 5d35169e AM |
7253 | |
| 7254 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7255 | is not a function. */ | |
| 7256 | ||
| 5bd4f169 AM |
7257 | /* We must allocate the symbol in our .dynbss section, which will |
| 7258 | become part of the .bss section of the executable. There will be | |
| 7259 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7260 | object will contain position independent code, so all references | |
| 7261 | from the dynamic object to this symbol will go through the global | |
| 7262 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7263 | determine the address it must put in the global offset table, so | |
| 7264 | both the dynamic object and the regular object will refer to the | |
| 7265 | same memory location for the variable. */ | |
| 5bd4f169 | 7266 | |
| 04c9666a AM |
7267 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7268 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7269 | runtime process image. We need to remember the offset into the |
| 7270 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7271 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7272 | { |
| eea6121a | 7273 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7274 | h->needs_copy = 1; |
| 5bd4f169 AM |
7275 | } |
| 7276 | ||
| 4ce794b7 | 7277 | s = htab->dynbss; |
| 5bd4f169 | 7278 | |
| 6cabe1ea | 7279 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7280 | } |
| 7281 | ||
| e86ce104 AM |
7282 | /* If given a function descriptor symbol, hide both the function code |
| 7283 | sym and the descriptor. */ | |
| 7284 | static void | |
| 4ce794b7 AM |
7285 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7286 | struct elf_link_hash_entry *h, | |
| 7287 | bfd_boolean force_local) | |
| e86ce104 | 7288 | { |
| 34814b9f | 7289 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7290 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7291 | ||
| 34814b9f AM |
7292 | eh = (struct ppc_link_hash_entry *) h; |
| 7293 | if (eh->is_func_descriptor) | |
| e86ce104 | 7294 | { |
| 34814b9f | 7295 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7296 | |
| 721956f4 | 7297 | if (fh == NULL) |
| d1329ca3 AM |
7298 | { |
| 7299 | const char *p, *q; | |
| 7300 | struct ppc_link_hash_table *htab; | |
| 7301 | char save; | |
| 7302 | ||
| 7303 | /* We aren't supposed to use alloca in BFD because on | |
| 7304 | systems which do not have alloca the version in libiberty | |
| 7305 | calls xmalloc, which might cause the program to crash | |
| 7306 | when it runs out of memory. This function doesn't have a | |
| 7307 | return status, so there's no way to gracefully return an | |
| 7308 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7309 | accessed; It's either a string in an ELF string table, |
| 7310 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7311 | |
| 34814b9f | 7312 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7313 | save = *p; |
| 7314 | *(char *) p = '.'; | |
| 7315 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7316 | if (htab == NULL) |
| 7317 | return; | |
| 7318 | ||
| 34814b9f AM |
7319 | fh = (struct ppc_link_hash_entry *) |
| 7320 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7321 | *(char *) p = save; |
| 7322 | ||
| 7323 | /* Unfortunately, if it so happens that the string we were | |
| 7324 | looking for was allocated immediately before this string, | |
| 7325 | then we overwrote the string terminator. That's the only | |
| 7326 | reason the lookup should fail. */ | |
| 7327 | if (fh == NULL) | |
| 7328 | { | |
| 34814b9f AM |
7329 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7330 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7331 | --q, --p; |
| 34814b9f AM |
7332 | if (q < eh->elf.root.root.string && *p == '.') |
| 7333 | fh = (struct ppc_link_hash_entry *) | |
| 7334 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7335 | } |
| 7336 | if (fh != NULL) | |
| 7337 | { | |
| 34814b9f AM |
7338 | eh->oh = fh; |
| 7339 | fh->oh = eh; | |
| d1329ca3 AM |
7340 | } |
| 7341 | } | |
| e86ce104 | 7342 | if (fh != NULL) |
| 34814b9f | 7343 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7344 | } |
| 7345 | } | |
| 7346 | ||
| 411e1bfb | 7347 | static bfd_boolean |
| 8843416a AM |
7348 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7349 | Elf_Internal_Sym **symp, | |
| 7350 | asection **symsecp, | |
| f961d9dd | 7351 | unsigned char **tls_maskp, |
| 8843416a AM |
7352 | Elf_Internal_Sym **locsymsp, |
| 7353 | unsigned long r_symndx, | |
| 7354 | bfd *ibfd) | |
| 411e1bfb | 7355 | { |
| 0ffa91dd | 7356 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7357 | |
| 7358 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7359 | { | |
| 7360 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7361 | struct elf_link_hash_entry *h; | |
| 7362 | ||
| 7363 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7364 | h = elf_follow_link (h); |
| 411e1bfb AM |
7365 | |
| 7366 | if (hp != NULL) | |
| 7367 | *hp = h; | |
| 7368 | ||
| 7369 | if (symp != NULL) | |
| 7370 | *symp = NULL; | |
| 7371 | ||
| 7372 | if (symsecp != NULL) | |
| 7373 | { | |
| 7374 | asection *symsec = NULL; | |
| 7375 | if (h->root.type == bfd_link_hash_defined | |
| 7376 | || h->root.type == bfd_link_hash_defweak) | |
| 7377 | symsec = h->root.u.def.section; | |
| 7378 | *symsecp = symsec; | |
| 7379 | } | |
| 7380 | ||
| e7b938ca | 7381 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7382 | { |
| 7383 | struct ppc_link_hash_entry *eh; | |
| 7384 | ||
| 7385 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7386 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7387 | } |
| 7388 | } | |
| 7389 | else | |
| 7390 | { | |
| 7391 | Elf_Internal_Sym *sym; | |
| 7392 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7393 | ||
| 7394 | if (locsyms == NULL) | |
| 7395 | { | |
| 7396 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7397 | if (locsyms == NULL) | |
| 7398 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7399 | symtab_hdr->sh_info, | |
| 7400 | 0, NULL, NULL, NULL); | |
| 7401 | if (locsyms == NULL) | |
| 7402 | return FALSE; | |
| 7403 | *locsymsp = locsyms; | |
| 7404 | } | |
| 7405 | sym = locsyms + r_symndx; | |
| 7406 | ||
| 7407 | if (hp != NULL) | |
| 7408 | *hp = NULL; | |
| 7409 | ||
| 7410 | if (symp != NULL) | |
| 7411 | *symp = sym; | |
| 7412 | ||
| 7413 | if (symsecp != NULL) | |
| cb33740c | 7414 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7415 | |
| e7b938ca | 7416 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7417 | { |
| 7418 | struct got_entry **lgot_ents; | |
| f961d9dd | 7419 | unsigned char *tls_mask; |
| 411e1bfb | 7420 | |
| e7b938ca | 7421 | tls_mask = NULL; |
| 411e1bfb AM |
7422 | lgot_ents = elf_local_got_ents (ibfd); |
| 7423 | if (lgot_ents != NULL) | |
| 7424 | { | |
| e054468f AM |
7425 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7426 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7427 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7428 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7429 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7430 | } |
| e7b938ca | 7431 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7432 | } |
| 7433 | } | |
| 7434 | return TRUE; | |
| 7435 | } | |
| 7436 | ||
| e7b938ca | 7437 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7438 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7439 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7440 | |
| 7441 | static int | |
| f961d9dd | 7442 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7443 | unsigned long *toc_symndx, |
| 7444 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7445 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7446 | const Elf_Internal_Rela *rel, |
| 7447 | bfd *ibfd) | |
| 411e1bfb AM |
7448 | { |
| 7449 | unsigned long r_symndx; | |
| 0d4792f7 | 7450 | int next_r; |
| 411e1bfb AM |
7451 | struct elf_link_hash_entry *h; |
| 7452 | Elf_Internal_Sym *sym; | |
| 7453 | asection *sec; | |
| 7454 | bfd_vma off; | |
| 7455 | ||
| 7456 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7457 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7458 | return 0; |
| 411e1bfb | 7459 | |
| e7b938ca | 7460 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7461 | || sec == NULL |
| 6bee8834 | 7462 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7463 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7464 | return 1; |
| 411e1bfb AM |
7465 | |
| 7466 | /* Look inside a TOC section too. */ | |
| 7467 | if (h != NULL) | |
| 7468 | { | |
| 7469 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7470 | off = h->root.u.def.value; | |
| 7471 | } | |
| 7472 | else | |
| 7473 | off = sym->st_value; | |
| 7474 | off += rel->r_addend; | |
| 7475 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7476 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7477 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7478 | if (toc_symndx != NULL) |
| 7479 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7480 | if (toc_addend != NULL) |
| 7481 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7482 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7483 | return 0; | |
| 854b41e7 | 7484 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7485 | && (next_r == -1 || next_r == -2)) |
| 7486 | return 1 - next_r; | |
| 951fd09b | 7487 | return 1; |
| 411e1bfb AM |
7488 | } |
| 7489 | ||
| 3b421ab3 AM |
7490 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7491 | ||
| 7492 | static struct tocsave_entry * | |
| 7493 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7494 | enum insert_option insert, | |
| 7495 | Elf_Internal_Sym **local_syms, | |
| 7496 | const Elf_Internal_Rela *irela, | |
| 7497 | bfd *ibfd) | |
| 7498 | { | |
| 7499 | unsigned long r_indx; | |
| 7500 | struct elf_link_hash_entry *h; | |
| 7501 | Elf_Internal_Sym *sym; | |
| 7502 | struct tocsave_entry ent, *p; | |
| 7503 | hashval_t hash; | |
| 7504 | struct tocsave_entry **slot; | |
| 7505 | ||
| 7506 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7507 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7508 | return NULL; | |
| 7509 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7510 | { | |
| 7511 | (*_bfd_error_handler) | |
| 7512 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7513 | return NULL; | |
| 7514 | } | |
| 7515 | ||
| 7516 | if (h != NULL) | |
| 7517 | ent.offset = h->root.u.def.value; | |
| 7518 | else | |
| 7519 | ent.offset = sym->st_value; | |
| 7520 | ent.offset += irela->r_addend; | |
| 7521 | ||
| 7522 | hash = tocsave_htab_hash (&ent); | |
| 7523 | slot = ((struct tocsave_entry **) | |
| 7524 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7525 | if (slot == NULL) | |
| 7526 | return NULL; | |
| 7527 | ||
| 7528 | if (*slot == NULL) | |
| 7529 | { | |
| 7530 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7531 | if (p == NULL) | |
| 7532 | return NULL; | |
| 7533 | *p = ent; | |
| 7534 | *slot = p; | |
| 7535 | } | |
| 7536 | return *slot; | |
| 7537 | } | |
| 7538 | ||
| 754021d0 | 7539 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7540 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7541 | |
| 7542 | static bfd_boolean | |
| 7543 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7544 | { | |
| 7545 | struct ppc_link_hash_entry *eh; | |
| 7546 | asection *sym_sec; | |
| 74f0fb50 | 7547 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7548 | |
| 7549 | if (h->root.type == bfd_link_hash_indirect) | |
| 7550 | return TRUE; | |
| 7551 | ||
| 754021d0 AM |
7552 | if (h->root.type != bfd_link_hash_defined |
| 7553 | && h->root.type != bfd_link_hash_defweak) | |
| 7554 | return TRUE; | |
| 7555 | ||
| 7556 | eh = (struct ppc_link_hash_entry *) h; | |
| 7557 | if (eh->adjust_done) | |
| 7558 | return TRUE; | |
| 7559 | ||
| 7560 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7561 | opd = get_opd_info (sym_sec); |
| 7562 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7563 | { |
| 51aecdc5 | 7564 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7565 | if (adjust == -1) |
| 7566 | { | |
| 7567 | /* This entry has been deleted. */ | |
| b3fac117 | 7568 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7569 | if (dsec == NULL) |
| 7570 | { | |
| 7571 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7572 | if (discarded_section (dsec)) |
| 81688140 | 7573 | { |
| b3fac117 | 7574 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7575 | break; |
| 7576 | } | |
| 7577 | } | |
| 4025353c | 7578 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7579 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7580 | } |
| 7581 | else | |
| 7582 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7583 | eh->adjust_done = 1; |
| 7584 | } | |
| 7585 | return TRUE; | |
| 7586 | } | |
| 7587 | ||
| 8c1d1bb8 | 7588 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7589 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7590 | have already been determined. */ |
| 7591 | ||
| 7592 | static bfd_boolean | |
| 7593 | dec_dynrel_count (bfd_vma r_info, | |
| 7594 | asection *sec, | |
| 7595 | struct bfd_link_info *info, | |
| 7596 | Elf_Internal_Sym **local_syms, | |
| 7597 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7598 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7599 | { |
| 7600 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7601 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7602 | |
| 7603 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7604 | should be kept in sync with the code in check_relocs. */ | |
| 7605 | r_type = ELF64_R_TYPE (r_info); | |
| 7606 | switch (r_type) | |
| 7607 | { | |
| 7608 | default: | |
| 7609 | return TRUE; | |
| 7610 | ||
| 7611 | case R_PPC64_TPREL16: | |
| 7612 | case R_PPC64_TPREL16_LO: | |
| 7613 | case R_PPC64_TPREL16_HI: | |
| 7614 | case R_PPC64_TPREL16_HA: | |
| 7615 | case R_PPC64_TPREL16_DS: | |
| 7616 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7617 | case R_PPC64_TPREL16_HIGH: |
| 7618 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7619 | case R_PPC64_TPREL16_HIGHER: |
| 7620 | case R_PPC64_TPREL16_HIGHERA: | |
| 7621 | case R_PPC64_TPREL16_HIGHEST: | |
| 7622 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 7623 | if (!bfd_link_pic (info)) |
| 8c1d1bb8 AM |
7624 | return TRUE; |
| 7625 | ||
| 7626 | case R_PPC64_TPREL64: | |
| 7627 | case R_PPC64_DTPMOD64: | |
| 7628 | case R_PPC64_DTPREL64: | |
| 7629 | case R_PPC64_ADDR64: | |
| 7630 | case R_PPC64_REL30: | |
| 7631 | case R_PPC64_REL32: | |
| 7632 | case R_PPC64_REL64: | |
| 7633 | case R_PPC64_ADDR14: | |
| 7634 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7635 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7636 | case R_PPC64_ADDR16: | |
| 7637 | case R_PPC64_ADDR16_DS: | |
| 7638 | case R_PPC64_ADDR16_HA: | |
| 7639 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7640 | case R_PPC64_ADDR16_HIGH: |
| 7641 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7642 | case R_PPC64_ADDR16_HIGHER: |
| 7643 | case R_PPC64_ADDR16_HIGHERA: | |
| 7644 | case R_PPC64_ADDR16_HIGHEST: | |
| 7645 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7646 | case R_PPC64_ADDR16_LO: | |
| 7647 | case R_PPC64_ADDR16_LO_DS: | |
| 7648 | case R_PPC64_ADDR24: | |
| 7649 | case R_PPC64_ADDR32: | |
| 7650 | case R_PPC64_UADDR16: | |
| 7651 | case R_PPC64_UADDR32: | |
| 7652 | case R_PPC64_UADDR64: | |
| 7653 | case R_PPC64_TOC: | |
| 7654 | break; | |
| 7655 | } | |
| 7656 | ||
| 7657 | if (local_syms != NULL) | |
| 7658 | { | |
| 7659 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7660 | bfd *ibfd = sec->owner; |
| 7661 | ||
| 7662 | r_symndx = ELF64_R_SYM (r_info); | |
| 7663 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7664 | return FALSE; | |
| 7665 | } | |
| 7666 | ||
| 0e1862bb | 7667 | if ((bfd_link_pic (info) |
| 1d483afe | 7668 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7669 | || (h != NULL |
| 198f1157 | 7670 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7671 | || h->root.type == bfd_link_hash_defweak |
| 7672 | || !h->def_regular)))) | |
| 7673 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7674 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7675 | && h != NULL |
| 7676 | && (h->root.type == bfd_link_hash_defweak | |
| 7677 | || !h->def_regular))) | |
| 7678 | ; | |
| 7679 | else | |
| 7680 | return TRUE; | |
| 7681 | ||
| 7682 | if (h != NULL) | |
| 6edfbbad | 7683 | { |
| 19e08130 AM |
7684 | struct elf_dyn_relocs *p; |
| 7685 | struct elf_dyn_relocs **pp; | |
| 7686 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7687 | ||
| 7688 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7689 | with local syms for a given section. Also, symbol flags are | |
| 7690 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7691 | report a dynreloc miscount. */ | |
| 7692 | if (*pp == NULL && info->gc_sections) | |
| 7693 | return TRUE; | |
| 7694 | ||
| 7695 | while ((p = *pp) != NULL) | |
| 60124e18 | 7696 | { |
| 19e08130 AM |
7697 | if (p->sec == sec) |
| 7698 | { | |
| 7699 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7700 | p->pc_count -= 1; | |
| 7701 | p->count -= 1; | |
| 7702 | if (p->count == 0) | |
| 7703 | *pp = p->next; | |
| 7704 | return TRUE; | |
| 7705 | } | |
| 7706 | pp = &p->next; | |
| 60124e18 | 7707 | } |
| 6edfbbad | 7708 | } |
| 19e08130 AM |
7709 | else |
| 7710 | { | |
| 7711 | struct ppc_dyn_relocs *p; | |
| 7712 | struct ppc_dyn_relocs **pp; | |
| 7713 | void *vpp; | |
| 7714 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7715 | |
| 19e08130 AM |
7716 | if (local_syms == NULL) |
| 7717 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7718 | if (sym_sec == NULL) | |
| 7719 | sym_sec = sec; | |
| c57da1a7 | 7720 | |
| 19e08130 AM |
7721 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7722 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7723 | ||
| 7724 | if (*pp == NULL && info->gc_sections) | |
| 7725 | return TRUE; | |
| 7726 | ||
| 7727 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7728 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7729 | { |
| 19e08130 AM |
7730 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7731 | { | |
| 7732 | p->count -= 1; | |
| 7733 | if (p->count == 0) | |
| 7734 | *pp = p->next; | |
| 7735 | return TRUE; | |
| 7736 | } | |
| 7737 | pp = &p->next; | |
| 8c1d1bb8 | 7738 | } |
| 8c1d1bb8 AM |
7739 | } |
| 7740 | ||
| 8de848d8 | 7741 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7742 | sec->owner, sec); |
| 8c1d1bb8 AM |
7743 | bfd_set_error (bfd_error_bad_value); |
| 7744 | return FALSE; | |
| 7745 | } | |
| 7746 | ||
| 754021d0 AM |
7747 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7748 | only remove those associated with functions in discarded link-once | |
| 7749 | sections, or weakly defined functions that have been overridden. It | |
| 7750 | would be possible to remove many more entries for statically linked | |
| 7751 | applications. */ | |
| 7752 | ||
| b34976b6 | 7753 | bfd_boolean |
| e7d1c40c | 7754 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7755 | { |
| 7756 | bfd *ibfd; | |
| 754021d0 | 7757 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7758 | asection *need_pad = NULL; |
| e7d1c40c AM |
7759 | struct ppc_link_hash_table *htab; |
| 7760 | ||
| 7761 | htab = ppc_hash_table (info); | |
| 7762 | if (htab == NULL) | |
| 7763 | return FALSE; | |
| 1e2f5b6e | 7764 | |
| c72f2fb2 | 7765 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7766 | { |
| 7767 | asection *sec; | |
| 7768 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7769 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7770 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7771 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7772 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7773 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7774 | |
| 854b41e7 AM |
7775 | if (!is_ppc64_elf (ibfd)) |
| 7776 | continue; | |
| 7777 | ||
| 1e2f5b6e | 7778 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7779 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7780 | continue; |
| 7781 | ||
| dbaa2011 | 7782 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7783 | continue; |
| 7784 | ||
| 1e2f5b6e AM |
7785 | if (sec->output_section == bfd_abs_section_ptr) |
| 7786 | continue; | |
| 7787 | ||
| 7788 | /* Look through the section relocs. */ | |
| 7789 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7790 | continue; | |
| 7791 | ||
| 6cdc0ccc | 7792 | local_syms = NULL; |
| 0ffa91dd | 7793 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7794 | |
| 7795 | /* Read the relocations. */ | |
| 4ce794b7 | 7796 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7797 | info->keep_memory); |
| 1e2f5b6e | 7798 | if (relstart == NULL) |
| b34976b6 | 7799 | return FALSE; |
| 1e2f5b6e AM |
7800 | |
| 7801 | /* First run through the relocs to check they are sane, and to | |
| 7802 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7803 | need_edit = FALSE; |
| 51aecdc5 | 7804 | broken = FALSE; |
| 3f764659 | 7805 | need_pad = sec; |
| 1e2f5b6e | 7806 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7807 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7808 | { |
| 04c9666a | 7809 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7810 | unsigned long r_symndx; |
| 7811 | asection *sym_sec; | |
| 7812 | struct elf_link_hash_entry *h; | |
| 7813 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7814 | bfd_vma offset; |
| 1e2f5b6e | 7815 | |
| 51aecdc5 | 7816 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7817 | only interested in the reloc pointing to a function entry |
| 7818 | point. */ | |
| 51aecdc5 AM |
7819 | offset = rel->r_offset; |
| 7820 | if (rel + 1 == relend | |
| 7821 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7822 | { |
| 7823 | /* If someone messes with .opd alignment then after a | |
| 7824 | "ld -r" we might have padding in the middle of .opd. | |
| 7825 | Also, there's nothing to prevent someone putting | |
| 7826 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7827 | optimization for them! */ |
| 3f764659 | 7828 | broken_opd: |
| 1e2f5b6e | 7829 | (*_bfd_error_handler) |
| d003868e | 7830 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7831 | broken = TRUE; |
| 1e2f5b6e AM |
7832 | break; |
| 7833 | } | |
| 7834 | ||
| 50bc7936 AM |
7835 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7836 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7837 | { | |
| 7838 | (*_bfd_error_handler) | |
| d003868e AM |
7839 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7840 | ibfd, r_type); | |
| 51aecdc5 | 7841 | broken = TRUE; |
| 50bc7936 AM |
7842 | break; |
| 7843 | } | |
| 7844 | ||
| 1e2f5b6e | 7845 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7846 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7847 | r_symndx, ibfd)) | |
| 50bc7936 | 7848 | goto error_ret; |
| 1e2f5b6e AM |
7849 | |
| 7850 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7851 | { | |
| 411e1bfb AM |
7852 | const char *sym_name; |
| 7853 | if (h != NULL) | |
| 7854 | sym_name = h->root.root.string; | |
| 7855 | else | |
| 26c61ae5 L |
7856 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7857 | sym_sec); | |
| 411e1bfb | 7858 | |
| 1e2f5b6e | 7859 | (*_bfd_error_handler) |
| d003868e AM |
7860 | (_("%B: undefined sym `%s' in .opd section"), |
| 7861 | ibfd, sym_name); | |
| 51aecdc5 | 7862 | broken = TRUE; |
| 1e2f5b6e AM |
7863 | break; |
| 7864 | } | |
| 7865 | ||
| 51020317 AM |
7866 | /* opd entries are always for functions defined in the |
| 7867 | current input bfd. If the symbol isn't defined in the | |
| 7868 | input bfd, then we won't be using the function in this | |
| 7869 | bfd; It must be defined in a linkonce section in another | |
| 7870 | bfd, or is weak. It's also possible that we are | |
| 7871 | discarding the function due to a linker script /DISCARD/, | |
| 7872 | which we test for via the output_section. */ | |
| 7873 | if (sym_sec->owner != ibfd | |
| 7874 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7875 | need_edit = TRUE; |
| 1e2f5b6e | 7876 | |
| 50bc7936 | 7877 | rel += 2; |
| 51aecdc5 AM |
7878 | if (rel + 1 == relend |
| 7879 | || (rel + 2 < relend | |
| 7880 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7881 | ++rel; | |
| 7882 | ||
| 7883 | if (rel == relend) | |
| 3f764659 JJ |
7884 | { |
| 7885 | if (sec->size == offset + 24) | |
| 7886 | { | |
| 7887 | need_pad = NULL; | |
| 7888 | break; | |
| 7889 | } | |
| 51aecdc5 | 7890 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7891 | { |
| 7892 | cnt_16b++; | |
| 7893 | break; | |
| 7894 | } | |
| 7895 | goto broken_opd; | |
| 7896 | } | |
| 3f764659 JJ |
7897 | else if (rel + 1 < relend |
| 7898 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7899 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7900 | { | |
| 51aecdc5 AM |
7901 | if (rel[0].r_offset == offset + 16) |
| 7902 | cnt_16b++; | |
| 7903 | else if (rel[0].r_offset != offset + 24) | |
| 7904 | goto broken_opd; | |
| 3f764659 JJ |
7905 | } |
| 7906 | else | |
| 7907 | goto broken_opd; | |
| 1e2f5b6e AM |
7908 | } |
| 7909 | ||
| e7d1c40c | 7910 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7911 | |
| 51aecdc5 | 7912 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7913 | { |
| 7914 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7915 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7916 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7917 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7918 | bfd_size_type amt; |
| 7919 | ||
| 983bddc8 | 7920 | new_contents = NULL; |
| 51aecdc5 | 7921 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7922 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7923 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7924 | if (opd->adjust == NULL) |
| 7925 | return FALSE; | |
| 7926 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7927 | |
| 7928 | /* This seems a waste of time as input .opd sections are all | |
| 7929 | zeros as generated by gcc, but I suppose there's no reason | |
| 7930 | this will always be so. We might start putting something in | |
| 7931 | the third word of .opd entries. */ | |
| 7932 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7933 | { | |
| eea6121a AM |
7934 | bfd_byte *loc; |
| 7935 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7936 | { |
| eea6121a AM |
7937 | if (loc != NULL) |
| 7938 | free (loc); | |
| 50bc7936 | 7939 | error_ret: |
| 6cdc0ccc AM |
7940 | if (local_syms != NULL |
| 7941 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7942 | free (local_syms); | |
| 6cdc0ccc AM |
7943 | if (elf_section_data (sec)->relocs != relstart) |
| 7944 | free (relstart); | |
| b34976b6 | 7945 | return FALSE; |
| 6cdc0ccc | 7946 | } |
| 1e2f5b6e AM |
7947 | sec->contents = loc; |
| 7948 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7949 | } | |
| 7950 | ||
| 7951 | elf_section_data (sec)->relocs = relstart; | |
| 7952 | ||
| 3f764659 | 7953 | new_contents = sec->contents; |
| 3f764659 JJ |
7954 | if (add_aux_fields) |
| 7955 | { | |
| 7956 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7957 | if (new_contents == NULL) | |
| 7958 | return FALSE; | |
| 51aecdc5 | 7959 | need_pad = NULL; |
| 3f764659 | 7960 | } |
| b4f4e59f AM |
7961 | wptr = new_contents; |
| 7962 | rptr = sec->contents; | |
| 1e2f5b6e | 7963 | write_rel = relstart; |
| 51aecdc5 | 7964 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7965 | { |
| 50bc7936 AM |
7966 | unsigned long r_symndx; |
| 7967 | asection *sym_sec; | |
| 7968 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7969 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7970 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7971 | long opd_ent_size; |
| 7972 | Elf_Internal_Rela *next_rel; | |
| 7973 | bfd_boolean skip; | |
| 50bc7936 AM |
7974 | |
| 7975 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7976 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7977 | r_symndx, ibfd)) |
| 50bc7936 AM |
7978 | goto error_ret; |
| 7979 | ||
| 51aecdc5 AM |
7980 | next_rel = rel + 2; |
| 7981 | if (next_rel + 1 == relend | |
| 7982 | || (next_rel + 2 < relend | |
| 7983 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 7984 | ++next_rel; | |
| 7985 | ||
| 7986 | /* See if the .opd entry is full 24 byte or | |
| 7987 | 16 byte (with fd_aux entry overlapped with next | |
| 7988 | fd_func). */ | |
| 7989 | opd_ent_size = 24; | |
| 7990 | if (next_rel == relend) | |
| 1e2f5b6e | 7991 | { |
| 51aecdc5 | 7992 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 7993 | opd_ent_size = 16; |
| 51aecdc5 AM |
7994 | } |
| 7995 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 7996 | opd_ent_size = 16; | |
| 3f764659 | 7997 | |
| 51aecdc5 AM |
7998 | if (h != NULL |
| 7999 | && h->root.root.string[0] == '.') | |
| 8000 | { | |
| 8001 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab); | |
| 8002 | if (fdh != NULL | |
| 8003 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 8004 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8005 | fdh = NULL; | |
| 8006 | } | |
| 1e2f5b6e | 8007 | |
| 51aecdc5 AM |
8008 | skip = (sym_sec->owner != ibfd |
| 8009 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8010 | if (skip) | |
| 8011 | { | |
| 8012 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8013 | { |
| 51aecdc5 AM |
8014 | /* Arrange for the function descriptor sym |
| 8015 | to be dropped. */ | |
| 8016 | fdh->elf.root.u.def.value = 0; | |
| 8017 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8018 | } |
| 51aecdc5 | 8019 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8020 | |
| 0e1862bb | 8021 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8022 | rel = next_rel; |
| 8023 | else | |
| 8024 | while (1) | |
| 8025 | { | |
| 8026 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8027 | NULL, h, sym)) | |
| 8028 | goto error_ret; | |
| 754021d0 | 8029 | |
| 51aecdc5 AM |
8030 | if (++rel == next_rel) |
| 8031 | break; | |
| 1e2f5b6e | 8032 | |
| 51aecdc5 AM |
8033 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8034 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8035 | r_symndx, ibfd)) | |
| 8036 | goto error_ret; | |
| 8037 | } | |
| 50bc7936 AM |
8038 | } |
| 8039 | else | |
| 1e2f5b6e | 8040 | { |
| 51aecdc5 AM |
8041 | /* We'll be keeping this opd entry. */ |
| 8042 | long adjust; | |
| 8043 | ||
| 8044 | if (fdh != NULL) | |
| 8045 | { | |
| 8046 | /* Redefine the function descriptor symbol to | |
| 8047 | this location in the opd section. It is | |
| 8048 | necessary to update the value here rather | |
| 8049 | than using an array of adjustments as we do | |
| 8050 | for local symbols, because various places | |
| 8051 | in the generic ELF code use the value | |
| 8052 | stored in u.def.value. */ | |
| 8053 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8054 | fdh->adjust_done = 1; | |
| 8055 | } | |
| 8056 | ||
| 8057 | /* Local syms are a bit tricky. We could | |
| 8058 | tweak them as they can be cached, but | |
| 8059 | we'd need to look through the local syms | |
| 8060 | for the function descriptor sym which we | |
| 8061 | don't have at the moment. So keep an | |
| 8062 | array of adjustments. */ | |
| 8063 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8064 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8065 | ||
| 8066 | if (wptr != rptr) | |
| 8067 | memcpy (wptr, rptr, opd_ent_size); | |
| 8068 | wptr += opd_ent_size; | |
| 8069 | if (add_aux_fields && opd_ent_size == 16) | |
| 8070 | { | |
| 8071 | memset (wptr, '\0', 8); | |
| 8072 | wptr += 8; | |
| 8073 | } | |
| 8074 | ||
| 50bc7936 | 8075 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8076 | new opd entries. */ |
| 8077 | for ( ; rel != next_rel; ++rel) | |
| 8078 | { | |
| 8079 | rel->r_offset += adjust; | |
| 8080 | if (write_rel != rel) | |
| 8081 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8082 | ++write_rel; | |
| 8083 | } | |
| 1e2f5b6e | 8084 | } |
| 51aecdc5 AM |
8085 | |
| 8086 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8087 | } |
| 8088 | ||
| 3f764659 | 8089 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8090 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8091 | if (add_aux_fields) |
| 8092 | { | |
| 8093 | free (sec->contents); | |
| 8094 | sec->contents = new_contents; | |
| 8095 | } | |
| 8096 | ||
| 05bf9422 | 8097 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8098 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8099 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8100 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8101 | some_edited = TRUE; |
| 1e2f5b6e | 8102 | } |
| 6cdc0ccc | 8103 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8104 | free (relstart); |
| 6cdc0ccc | 8105 | |
| 411e1bfb AM |
8106 | if (local_syms != NULL |
| 8107 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8108 | { | |
| 8109 | if (!info->keep_memory) | |
| 8110 | free (local_syms); | |
| 8111 | else | |
| 8112 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8113 | } | |
| 8114 | } | |
| 8115 | ||
| 754021d0 AM |
8116 | if (some_edited) |
| 8117 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8118 | ||
| 3f764659 JJ |
8119 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8120 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8121 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8122 | { |
| 8123 | bfd_byte *p; | |
| 8124 | ||
| 8125 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8126 | { | |
| 8127 | BFD_ASSERT (need_pad->size > 0); | |
| 8128 | ||
| 8129 | p = bfd_malloc (need_pad->size + 8); | |
| 8130 | if (p == NULL) | |
| 8131 | return FALSE; | |
| 699733f6 | 8132 | |
| 3f764659 JJ |
8133 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8134 | p, 0, need_pad->size)) | |
| 8135 | return FALSE; | |
| 8136 | ||
| 8137 | need_pad->contents = p; | |
| 8138 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8139 | } | |
| 8140 | else | |
| 8141 | { | |
| 8142 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8143 | if (p == NULL) | |
| 8144 | return FALSE; | |
| 8145 | ||
| 8146 | need_pad->contents = p; | |
| 8147 | } | |
| 8148 | ||
| 8149 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8150 | need_pad->size += 8; | |
| 8151 | } | |
| 8152 | ||
| 411e1bfb AM |
8153 | return TRUE; |
| 8154 | } | |
| 8155 | ||
| e1918d23 | 8156 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8157 | |
| e1918d23 | 8158 | asection * |
| e7d1c40c | 8159 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8160 | { |
| 411e1bfb AM |
8161 | struct ppc_link_hash_table *htab; |
| 8162 | ||
| 411e1bfb | 8163 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8164 | if (htab == NULL) |
| 8165 | return NULL; | |
| 8166 | ||
| ee67d69a AM |
8167 | if (abiversion (info->output_bfd) == 1) |
| 8168 | htab->opd_abi = 1; | |
| 8169 | ||
| e7d1c40c | 8170 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8171 | htab->do_multi_toc = 0; |
| 8172 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8173 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8174 | |
| 3a71aa26 AM |
8175 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8176 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8177 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8178 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8179 | if (htab->tls_get_addr != NULL) | |
| 8180 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8181 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8182 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8183 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8184 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8185 | { |
| 8186 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8187 | ||
| 8188 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8189 | FALSE, FALSE, TRUE); | |
| 8190 | if (opt != NULL) | |
| 8191 | func_desc_adjust (opt, info); | |
| 8192 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8193 | FALSE, FALSE, TRUE); | |
| 8194 | if (opt_fd != NULL | |
| 8195 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8196 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8197 | { | |
| 8198 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8199 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8200 | be calling __tls_get_addr via a plt call stub, then | |
| 8201 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8202 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8203 | if (htab->elf.dynamic_sections_created | |
| 8204 | && tga_fd != NULL | |
| 8205 | && (tga_fd->type == STT_FUNC | |
| 8206 | || tga_fd->needs_plt) | |
| 8207 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8208 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8209 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8210 | { | |
| 8211 | struct plt_entry *ent; | |
| 8212 | ||
| 8213 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8214 | if (ent->plt.refcount > 0) | |
| 8215 | break; | |
| 8216 | if (ent != NULL) | |
| 8217 | { | |
| 8218 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8219 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8220 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 8221 | if (opt_fd->dynindx != -1) | |
| 8222 | { | |
| 8223 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8224 | opt_fd->dynindx = -1; | |
| 8225 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8226 | opt_fd->dynstr_index); | |
| 8227 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8228 | return NULL; |
| a7f2871e AM |
8229 | } |
| 8230 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8231 | tga = &htab->tls_get_addr->elf; | |
| 8232 | if (opt != NULL && tga != NULL) | |
| 8233 | { | |
| 8234 | tga->root.type = bfd_link_hash_indirect; | |
| 8235 | tga->root.u.i.link = &opt->root; | |
| 8236 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 8237 | _bfd_elf_link_hash_hide_symbol (info, opt, | |
| 8238 | tga->forced_local); | |
| 8239 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8240 | } | |
| 8241 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8242 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8243 | if (htab->tls_get_addr != NULL) | |
| 8244 | { | |
| 8245 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8246 | htab->tls_get_addr->is_func = 1; | |
| 8247 | } | |
| 8248 | } | |
| 8249 | } | |
| 8250 | } | |
| 7c9cf415 AM |
8251 | else if (htab->params->tls_get_addr_opt < 0) |
| 8252 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8253 | } |
| 33c0ec9d | 8254 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8255 | } |
| 8387904d | 8256 | |
| 3a71aa26 AM |
8257 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8258 | HASH1 or HASH2. */ | |
| 8387904d | 8259 | |
| 3a71aa26 AM |
8260 | static bfd_boolean |
| 8261 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8262 | const Elf_Internal_Rela *rel, | |
| 8263 | const struct ppc_link_hash_entry *hash1, | |
| 8264 | const struct ppc_link_hash_entry *hash2) | |
| 8265 | { | |
| 8266 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8267 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8268 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8269 | ||
| e054468f | 8270 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8271 | { |
| 3a71aa26 AM |
8272 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8273 | struct elf_link_hash_entry *h; | |
| 8387904d | 8274 | |
| 3a71aa26 | 8275 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8276 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8277 | if (h == &hash1->elf || h == &hash2->elf) |
| 8278 | return TRUE; | |
| a48ebf4d | 8279 | } |
| 3a71aa26 | 8280 | return FALSE; |
| 951fd09b | 8281 | } |
| 411e1bfb | 8282 | |
| 951fd09b AM |
8283 | /* Run through all the TLS relocs looking for optimization |
| 8284 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8285 | a preliminary section layout so that we know the TLS segment | |
| 8286 | offsets. We can't optimize earlier because some optimizations need | |
| 8287 | to know the tp offset, and we need to optimize before allocating | |
| 8288 | dynamic relocations. */ | |
| 8289 | ||
| 8290 | bfd_boolean | |
| 33c0ec9d | 8291 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8292 | { |
| 8293 | bfd *ibfd; | |
| 8294 | asection *sec; | |
| 8295 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8296 | unsigned char *toc_ref; |
| 102890f0 | 8297 | int pass; |
| 951fd09b | 8298 | |
| 3cbc1e5e | 8299 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8300 | return TRUE; |
| 8301 | ||
| 951fd09b | 8302 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8303 | if (htab == NULL) |
| 8304 | return FALSE; | |
| 8305 | ||
| 663a1470 AM |
8306 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8307 | entries involved with tls relocs, and check that tls relocs | |
| 8308 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8309 | such a call. If they are not, we can't do any tls optimization. | |
| 8310 | On the second pass twiddle tls_mask flags to notify | |
| 8311 | relocate_section that optimization can be done, and adjust got | |
| 8312 | and plt refcounts. */ | |
| 8313 | toc_ref = NULL; | |
| 8314 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8315 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8316 | { |
| 8317 | Elf_Internal_Sym *locsyms = NULL; | |
| 8318 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8319 | ||
| 102890f0 AM |
8320 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8321 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8322 | { | |
| 8323 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8324 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8325 | |
| 102890f0 AM |
8326 | /* Read the relocations. */ |
| 8327 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8328 | info->keep_memory); | |
| 8329 | if (relstart == NULL) | |
| 2915c55b JK |
8330 | { |
| 8331 | free (toc_ref); | |
| 8332 | return FALSE; | |
| 8333 | } | |
| 411e1bfb | 8334 | |
| 102890f0 AM |
8335 | relend = relstart + sec->reloc_count; |
| 8336 | for (rel = relstart; rel < relend; rel++) | |
| 8337 | { | |
| 8338 | enum elf_ppc64_reloc_type r_type; | |
| 8339 | unsigned long r_symndx; | |
| 8340 | struct elf_link_hash_entry *h; | |
| 8341 | Elf_Internal_Sym *sym; | |
| 8342 | asection *sym_sec; | |
| f961d9dd AM |
8343 | unsigned char *tls_mask; |
| 8344 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8345 | bfd_vma value; |
| 8346 | bfd_boolean ok_tprel, is_local; | |
| 8347 | long toc_ref_index = 0; | |
| 8348 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8349 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8350 | |
| 102890f0 AM |
8351 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8352 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8353 | r_symndx, ibfd)) | |
| 8354 | { | |
| 8355 | err_free_rel: | |
| 8356 | if (elf_section_data (sec)->relocs != relstart) | |
| 8357 | free (relstart); | |
| 8358 | if (toc_ref != NULL) | |
| 8359 | free (toc_ref); | |
| 8360 | if (locsyms != NULL | |
| 0ffa91dd | 8361 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8362 | != (unsigned char *) locsyms)) |
| 8363 | free (locsyms); | |
| 663a1470 | 8364 | return ret; |
| 102890f0 | 8365 | } |
| 411e1bfb | 8366 | |
| 102890f0 AM |
8367 | if (h != NULL) |
| 8368 | { | |
| 766bc656 AM |
8369 | if (h->root.type == bfd_link_hash_defined |
| 8370 | || h->root.type == bfd_link_hash_defweak) | |
| 8371 | value = h->root.u.def.value; | |
| 8372 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8373 | value = 0; | |
| 8374 | else | |
| 663a1470 AM |
8375 | { |
| 8376 | found_tls_get_addr_arg = 0; | |
| 8377 | continue; | |
| 8378 | } | |
| 102890f0 AM |
8379 | } |
| 8380 | else | |
| 8381 | /* Symbols referenced by TLS relocs must be of type | |
| 8382 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8383 | value = sym->st_value; | |
| 8384 | ||
| 8385 | ok_tprel = FALSE; | |
| 8386 | is_local = FALSE; | |
| 8387 | if (h == NULL | |
| 8388 | || !h->def_dynamic) | |
| 8389 | { | |
| 8390 | is_local = TRUE; | |
| 766bc656 AM |
8391 | if (h != NULL |
| 8392 | && h->root.type == bfd_link_hash_undefweak) | |
| 8393 | ok_tprel = TRUE; | |
| 8394 | else | |
| 8395 | { | |
| 8396 | value += sym_sec->output_offset; | |
| 8397 | value += sym_sec->output_section->vma; | |
| 8398 | value -= htab->elf.tls_sec->vma; | |
| 8399 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8400 | < (bfd_vma) 1 << 32); | |
| 8401 | } | |
| 102890f0 | 8402 | } |
| 951fd09b | 8403 | |
| 102890f0 | 8404 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8405 | /* If this section has old-style __tls_get_addr calls |
| 8406 | without marker relocs, then check that each | |
| 8407 | __tls_get_addr call reloc is preceded by a reloc | |
| 8408 | that conceivably belongs to the __tls_get_addr arg | |
| 8409 | setup insn. If we don't find matching arg setup | |
| 8410 | relocs, don't do any tls optimization. */ | |
| 8411 | if (pass == 0 | |
| 8412 | && sec->has_tls_get_addr_call | |
| 8413 | && h != NULL | |
| 8414 | && (h == &htab->tls_get_addr->elf | |
| 8415 | || h == &htab->tls_get_addr_fd->elf) | |
| 8416 | && !found_tls_get_addr_arg | |
| 8417 | && is_branch_reloc (r_type)) | |
| 8418 | { | |
| 25f53a85 | 8419 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8420 | "TLS optimization disabled\n"), |
| 8421 | ibfd, sec, rel->r_offset); | |
| 8422 | ret = TRUE; | |
| 8423 | goto err_free_rel; | |
| 8424 | } | |
| 8425 | ||
| 8426 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8427 | switch (r_type) |
| 8428 | { | |
| 8429 | case R_PPC64_GOT_TLSLD16: | |
| 8430 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8431 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8432 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8433 | /* Fall thru */ |
| 8434 | ||
| 8435 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8436 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8437 | /* These relocs should never be against a symbol | |
| 8438 | defined in a shared lib. Leave them alone if | |
| 8439 | that turns out to be the case. */ | |
| 8440 | if (!is_local) | |
| 8441 | continue; | |
| 411e1bfb | 8442 | |
| 102890f0 | 8443 | /* LD -> LE */ |
| 411e1bfb | 8444 | tls_set = 0; |
| 102890f0 AM |
8445 | tls_clear = TLS_LD; |
| 8446 | tls_type = TLS_TLS | TLS_LD; | |
| 8447 | break; | |
| 411e1bfb | 8448 | |
| 102890f0 AM |
8449 | case R_PPC64_GOT_TLSGD16: |
| 8450 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8451 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8452 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8453 | /* Fall thru */ |
| 8454 | ||
| 8455 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8456 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8457 | if (ok_tprel) | |
| 8458 | /* GD -> LE */ | |
| 411e1bfb | 8459 | tls_set = 0; |
| 102890f0 AM |
8460 | else |
| 8461 | /* GD -> IE */ | |
| 8462 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8463 | tls_clear = TLS_GD; | |
| 8464 | tls_type = TLS_TLS | TLS_GD; | |
| 8465 | break; | |
| 8466 | ||
| 8467 | case R_PPC64_GOT_TPREL16_DS: | |
| 8468 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8469 | case R_PPC64_GOT_TPREL16_HI: | |
| 8470 | case R_PPC64_GOT_TPREL16_HA: | |
| 8471 | if (ok_tprel) | |
| 8472 | { | |
| 8473 | /* IE -> LE */ | |
| 8474 | tls_set = 0; | |
| 8475 | tls_clear = TLS_TPREL; | |
| 8476 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8477 | break; | |
| 8478 | } | |
| 411e1bfb AM |
8479 | continue; |
| 8480 | ||
| 727fc41e AM |
8481 | case R_PPC64_TLSGD: |
| 8482 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8483 | found_tls_get_addr_arg = 1; |
| 8484 | /* Fall thru */ | |
| 8485 | ||
| 8486 | case R_PPC64_TLS: | |
| 8487 | case R_PPC64_TOC16: | |
| 8488 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8489 | if (sym_sec == NULL || sym_sec != toc) |
| 8490 | continue; | |
| 8491 | ||
| 8492 | /* Mark this toc entry as referenced by a TLS | |
| 8493 | code sequence. We can do that now in the | |
| 8494 | case of R_PPC64_TLS, and after checking for | |
| 8495 | tls_get_addr for the TOC16 relocs. */ | |
| 8496 | if (toc_ref == NULL) | |
| 663a1470 AM |
8497 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8498 | if (toc_ref == NULL) | |
| 8499 | goto err_free_rel; | |
| 8500 | ||
| 102890f0 AM |
8501 | if (h != NULL) |
| 8502 | value = h->root.u.def.value; | |
| 8503 | else | |
| 8504 | value = sym->st_value; | |
| 8505 | value += rel->r_addend; | |
| 73242275 AM |
8506 | if (value % 8 != 0) |
| 8507 | continue; | |
| 8508 | BFD_ASSERT (value < toc->size | |
| 8509 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8510 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8511 | if (r_type == R_PPC64_TLS |
| 8512 | || r_type == R_PPC64_TLSGD | |
| 8513 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8514 | { |
| 8515 | toc_ref[toc_ref_index] = 1; | |
| 8516 | continue; | |
| 8517 | } | |
| 8518 | ||
| 8519 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8520 | continue; | |
| 8521 | ||
| 8522 | tls_set = 0; | |
| 8523 | tls_clear = 0; | |
| 8524 | expecting_tls_get_addr = 2; | |
| 8525 | break; | |
| 8526 | ||
| 8527 | case R_PPC64_TPREL64: | |
| 8528 | if (pass == 0 | |
| 8529 | || sec != toc | |
| 8530 | || toc_ref == NULL | |
| 663a1470 | 8531 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8532 | continue; |
| 8533 | if (ok_tprel) | |
| 8534 | { | |
| 8535 | /* IE -> LE */ | |
| 8536 | tls_set = TLS_EXPLICIT; | |
| 8537 | tls_clear = TLS_TPREL; | |
| 8538 | break; | |
| 8539 | } | |
| 8540 | continue; | |
| 8541 | ||
| 8542 | case R_PPC64_DTPMOD64: | |
| 8543 | if (pass == 0 | |
| 8544 | || sec != toc | |
| 8545 | || toc_ref == NULL | |
| 663a1470 | 8546 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8547 | continue; |
| 8548 | if (rel + 1 < relend | |
| 8549 | && (rel[1].r_info | |
| 8550 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8551 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8552 | { | |
| 8553 | if (ok_tprel) | |
| 8554 | /* GD -> LE */ | |
| 8555 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8556 | else | |
| 8557 | /* GD -> IE */ | |
| 8558 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8559 | tls_clear = TLS_GD; | |
| 8560 | } | |
| 8561 | else | |
| 8562 | { | |
| 8563 | if (!is_local) | |
| 8564 | continue; | |
| 8565 | ||
| 8566 | /* LD -> LE */ | |
| 8567 | tls_set = TLS_EXPLICIT; | |
| 8568 | tls_clear = TLS_LD; | |
| 8569 | } | |
| 8570 | break; | |
| 8571 | ||
| 8572 | default: | |
| 8573 | continue; | |
| 8574 | } | |
| 8575 | ||
| 8576 | if (pass == 0) | |
| 8577 | { | |
| 727fc41e AM |
8578 | if (!expecting_tls_get_addr |
| 8579 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8580 | continue; |
| 8581 | ||
| 3a71aa26 AM |
8582 | if (rel + 1 < relend |
| 8583 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8584 | htab->tls_get_addr, | |
| 8585 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8586 | { |
| 3a71aa26 | 8587 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8588 | { |
| 3a71aa26 | 8589 | /* Check for toc tls entries. */ |
| f961d9dd | 8590 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8591 | int retval; |
| 8592 | ||
| 8593 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8594 | &locsyms, | |
| 8595 | rel, ibfd); | |
| 8596 | if (retval == 0) | |
| 8597 | goto err_free_rel; | |
| 663a1470 AM |
8598 | if (toc_tls != NULL) |
| 8599 | { | |
| 8600 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8601 | found_tls_get_addr_arg = 1; | |
| 8602 | if (retval > 1) | |
| 8603 | toc_ref[toc_ref_index] = 1; | |
| 8604 | } | |
| 102890f0 | 8605 | } |
| 3a71aa26 | 8606 | continue; |
| 102890f0 AM |
8607 | } |
| 8608 | ||
| 8609 | if (expecting_tls_get_addr != 1) | |
| 8610 | continue; | |
| 8611 | ||
| 8612 | /* Uh oh, we didn't find the expected call. We | |
| 8613 | could just mark this symbol to exclude it | |
| 8614 | from tls optimization but it's safer to skip | |
| 663a1470 | 8615 | the entire optimization. */ |
| 25f53a85 | 8616 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8617 | "TLS optimization disabled\n"), |
| 8618 | ibfd, sec, rel->r_offset); | |
| 8619 | ret = TRUE; | |
| 8620 | goto err_free_rel; | |
| 102890f0 AM |
8621 | } |
| 8622 | ||
| 85f7a9cb | 8623 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8624 | { |
| 8625 | struct plt_entry *ent; | |
| 8626 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8627 | ent != NULL; | |
| 8628 | ent = ent->next) | |
| 8629 | if (ent->addend == 0) | |
| 411e1bfb | 8630 | { |
| 102890f0 | 8631 | if (ent->plt.refcount > 0) |
| 30038c59 | 8632 | { |
| 102890f0 AM |
8633 | ent->plt.refcount -= 1; |
| 8634 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8635 | } |
| 102890f0 | 8636 | break; |
| 411e1bfb | 8637 | } |
| 102890f0 | 8638 | } |
| 411e1bfb | 8639 | |
| 85f7a9cb | 8640 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8641 | { |
| 8642 | struct plt_entry *ent; | |
| 8643 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8644 | ent != NULL; | |
| 8645 | ent = ent->next) | |
| 8646 | if (ent->addend == 0) | |
| 411e1bfb | 8647 | { |
| 102890f0 AM |
8648 | if (ent->plt.refcount > 0) |
| 8649 | ent->plt.refcount -= 1; | |
| 8650 | break; | |
| 411e1bfb | 8651 | } |
| 102890f0 | 8652 | } |
| 411e1bfb | 8653 | |
| 102890f0 | 8654 | if (tls_clear == 0) |
| 30038c59 AM |
8655 | continue; |
| 8656 | ||
| 102890f0 AM |
8657 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8658 | { | |
| 8659 | struct got_entry *ent; | |
| 411e1bfb | 8660 | |
| 102890f0 AM |
8661 | /* Adjust got entry for this reloc. */ |
| 8662 | if (h != NULL) | |
| 8663 | ent = h->got.glist; | |
| 8664 | else | |
| 8665 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8666 | |
| 102890f0 AM |
8667 | for (; ent != NULL; ent = ent->next) |
| 8668 | if (ent->addend == rel->r_addend | |
| 8669 | && ent->owner == ibfd | |
| 8670 | && ent->tls_type == tls_type) | |
| 8671 | break; | |
| 8672 | if (ent == NULL) | |
| 8673 | abort (); | |
| 411e1bfb | 8674 | |
| 102890f0 AM |
8675 | if (tls_set == 0) |
| 8676 | { | |
| 8677 | /* We managed to get rid of a got entry. */ | |
| 8678 | if (ent->got.refcount > 0) | |
| 8679 | ent->got.refcount -= 1; | |
| 8680 | } | |
| 8681 | } | |
| 8682 | else | |
| 8683 | { | |
| 8684 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8685 | we'll lose one or two dyn relocs. */ | |
| 8686 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8687 | NULL, h, sym)) |
| 102890f0 | 8688 | return FALSE; |
| 411e1bfb | 8689 | |
| 102890f0 AM |
8690 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8691 | { | |
| 8692 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8693 | NULL, h, sym)) |
| 102890f0 AM |
8694 | return FALSE; |
| 8695 | } | |
| 8696 | } | |
| 411e1bfb | 8697 | |
| 102890f0 AM |
8698 | *tls_mask |= tls_set; |
| 8699 | *tls_mask &= ~tls_clear; | |
| 8700 | } | |
| 8c1d1bb8 | 8701 | |
| 102890f0 AM |
8702 | if (elf_section_data (sec)->relocs != relstart) |
| 8703 | free (relstart); | |
| 8704 | } | |
| 411e1bfb | 8705 | |
| 663a1470 AM |
8706 | if (locsyms != NULL |
| 8707 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8708 | { | |
| 8709 | if (!info->keep_memory) | |
| 8710 | free (locsyms); | |
| 8711 | else | |
| 8712 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8713 | } | |
| 8714 | } | |
| 411e1bfb | 8715 | |
| 663a1470 AM |
8716 | if (toc_ref != NULL) |
| 8717 | free (toc_ref); | |
| b34976b6 | 8718 | return TRUE; |
| 1e2f5b6e | 8719 | } |
| b34976b6 | 8720 | |
| c5614fa4 AM |
8721 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8722 | the values of any global symbols in a toc section that has been | |
| 8723 | edited. Globals in toc sections should be a rarity, so this function | |
| 8724 | sets a flag if any are found in toc sections other than the one just | |
| 8725 | edited, so that futher hash table traversals can be avoided. */ | |
| 8726 | ||
| 8727 | struct adjust_toc_info | |
| 8728 | { | |
| 8729 | asection *toc; | |
| 8730 | unsigned long *skip; | |
| 8731 | bfd_boolean global_toc_syms; | |
| 8732 | }; | |
| 8733 | ||
| ba761f19 AM |
8734 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8735 | ||
| c5614fa4 AM |
8736 | static bfd_boolean |
| 8737 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8738 | { | |
| 8739 | struct ppc_link_hash_entry *eh; | |
| 8740 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8741 | unsigned long i; |
| c5614fa4 | 8742 | |
| c5614fa4 AM |
8743 | if (h->root.type != bfd_link_hash_defined |
| 8744 | && h->root.type != bfd_link_hash_defweak) | |
| 8745 | return TRUE; | |
| 8746 | ||
| 8747 | eh = (struct ppc_link_hash_entry *) h; | |
| 8748 | if (eh->adjust_done) | |
| 8749 | return TRUE; | |
| 8750 | ||
| 8751 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8752 | { | |
| 854b41e7 AM |
8753 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8754 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8755 | else |
| 854b41e7 AM |
8756 | i = eh->elf.root.u.def.value >> 3; |
| 8757 | ||
| ba761f19 | 8758 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8759 | { |
| 8760 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8761 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8762 | do | |
| 8763 | ++i; | |
| ba761f19 | 8764 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8765 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8766 | } |
| 854b41e7 AM |
8767 | |
| 8768 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8769 | eh->adjust_done = 1; |
| 8770 | } | |
| 8771 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8772 | toc_inf->global_toc_syms = TRUE; | |
| 8773 | ||
| 8774 | return TRUE; | |
| 8775 | } | |
| 8776 | ||
| 560c8763 AM |
8777 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8778 | ||
| 8779 | static bfd_boolean | |
| 8780 | ok_lo_toc_insn (unsigned int insn) | |
| 8781 | { | |
| 8782 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8783 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8784 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8785 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8786 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8787 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8788 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8789 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8790 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8791 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8792 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8793 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8794 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8795 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8796 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8797 | && (insn & 3) != 1) | |
| 8798 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8799 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8800 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8801 | } | |
| 8802 | ||
| c5614fa4 AM |
8803 | /* Examine all relocs referencing .toc sections in order to remove |
| 8804 | unused .toc entries. */ | |
| 8805 | ||
| 8806 | bfd_boolean | |
| 33c0ec9d | 8807 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8808 | { |
| 8809 | bfd *ibfd; | |
| 8810 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8811 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8812 | |
| 67f0cbdb | 8813 | htab->do_toc_opt = 1; |
| c5614fa4 | 8814 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8815 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8816 | { |
| 8817 | asection *toc, *sec; | |
| 8818 | Elf_Internal_Shdr *symtab_hdr; | |
| 8819 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8820 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8821 | unsigned long *skip, *drop; |
| 8822 | unsigned char *used; | |
| 8823 | unsigned char *keep, last, some_unused; | |
| 8824 | ||
| 854b41e7 AM |
8825 | if (!is_ppc64_elf (ibfd)) |
| 8826 | continue; | |
| 8827 | ||
| c5614fa4 AM |
8828 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8829 | if (toc == NULL | |
| 92b7a70f | 8830 | || toc->size == 0 |
| dbaa2011 AM |
8831 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8832 | || discarded_section (toc)) | |
| c5614fa4 AM |
8833 | continue; |
| 8834 | ||
| 425b145b | 8835 | toc_relocs = NULL; |
| c5614fa4 | 8836 | local_syms = NULL; |
| 0ffa91dd | 8837 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8838 | |
| 8839 | /* Look at sections dropped from the final link. */ | |
| 8840 | skip = NULL; | |
| 8841 | relstart = NULL; | |
| 8842 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8843 | { | |
| 8844 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8845 | || !discarded_section (sec) |
| c5614fa4 AM |
8846 | || get_opd_info (sec) |
| 8847 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8848 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8849 | continue; | |
| 8850 | ||
| 8851 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8852 | if (relstart == NULL) | |
| 8853 | goto error_ret; | |
| 8854 | ||
| 8855 | /* Run through the relocs to see which toc entries might be | |
| 8856 | unused. */ | |
| 8857 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8858 | { | |
| 8859 | enum elf_ppc64_reloc_type r_type; | |
| 8860 | unsigned long r_symndx; | |
| 8861 | asection *sym_sec; | |
| 8862 | struct elf_link_hash_entry *h; | |
| 8863 | Elf_Internal_Sym *sym; | |
| 8864 | bfd_vma val; | |
| 8865 | ||
| 8866 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8867 | switch (r_type) | |
| 8868 | { | |
| 8869 | default: | |
| 8870 | continue; | |
| 8871 | ||
| 8872 | case R_PPC64_TOC16: | |
| 8873 | case R_PPC64_TOC16_LO: | |
| 8874 | case R_PPC64_TOC16_HI: | |
| 8875 | case R_PPC64_TOC16_HA: | |
| 8876 | case R_PPC64_TOC16_DS: | |
| 8877 | case R_PPC64_TOC16_LO_DS: | |
| 8878 | break; | |
| 8879 | } | |
| 8880 | ||
| 8881 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8882 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8883 | r_symndx, ibfd)) | |
| 8884 | goto error_ret; | |
| 8885 | ||
| 8886 | if (sym_sec != toc) | |
| 8887 | continue; | |
| 8888 | ||
| 8889 | if (h != NULL) | |
| 8890 | val = h->root.u.def.value; | |
| 8891 | else | |
| 8892 | val = sym->st_value; | |
| 8893 | val += rel->r_addend; | |
| 8894 | ||
| 8895 | if (val >= toc->size) | |
| 8896 | continue; | |
| 8897 | ||
| 8898 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8899 | If not, don't mark as unused. */ | |
| 8900 | if (val & 7) | |
| 8901 | continue; | |
| 8902 | ||
| 8903 | if (skip == NULL) | |
| 8904 | { | |
| 854b41e7 | 8905 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8906 | if (skip == NULL) |
| 8907 | goto error_ret; | |
| 8908 | } | |
| 8909 | ||
| ba761f19 | 8910 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8911 | } |
| 8912 | ||
| 8913 | if (elf_section_data (sec)->relocs != relstart) | |
| 8914 | free (relstart); | |
| 8915 | } | |
| 8916 | ||
| ba761f19 AM |
8917 | /* For largetoc loads of address constants, we can convert |
| 8918 | . addis rx,2,addr@got@ha | |
| 8919 | . ld ry,addr@got@l(rx) | |
| 8920 | to | |
| 8921 | . addis rx,2,addr@toc@ha | |
| 8922 | . addi ry,rx,addr@toc@l | |
| 8923 | when addr is within 2G of the toc pointer. This then means | |
| 8924 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8925 | |
| ba761f19 AM |
8926 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8927 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8928 | && toc->reloc_count != 0) | |
| 8929 | { | |
| 8930 | /* Read toc relocs. */ | |
| 425b145b AM |
8931 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8932 | info->keep_memory); | |
| 8933 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8934 | goto error_ret; |
| 8935 | ||
| 425b145b | 8936 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8937 | { |
| 8938 | enum elf_ppc64_reloc_type r_type; | |
| 8939 | unsigned long r_symndx; | |
| 8940 | asection *sym_sec; | |
| 8941 | struct elf_link_hash_entry *h; | |
| 8942 | Elf_Internal_Sym *sym; | |
| 8943 | bfd_vma val, addr; | |
| 8944 | ||
| 8945 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8946 | if (r_type != R_PPC64_ADDR64) | |
| 8947 | continue; | |
| 8948 | ||
| 8949 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8950 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8951 | r_symndx, ibfd)) | |
| 8952 | goto error_ret; | |
| 8953 | ||
| 425b145b | 8954 | if (sym_sec == NULL |
| dbaa2011 | 8955 | || discarded_section (sym_sec)) |
| 425b145b AM |
8956 | continue; |
| 8957 | ||
| afe397ea | 8958 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
8959 | continue; |
| 8960 | ||
| 8961 | if (h != NULL) | |
| bddc25c9 AM |
8962 | { |
| 8963 | if (h->type == STT_GNU_IFUNC) | |
| 8964 | continue; | |
| 8965 | val = h->root.u.def.value; | |
| 8966 | } | |
| ba761f19 | 8967 | else |
| bddc25c9 AM |
8968 | { |
| 8969 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8970 | continue; | |
| 8971 | val = sym->st_value; | |
| 8972 | } | |
| ba761f19 AM |
8973 | val += rel->r_addend; |
| 8974 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8975 | ||
| 8976 | /* We don't yet know the exact toc pointer value, but we | |
| 8977 | know it will be somewhere in the toc section. Don't | |
| 8978 | optimize if the difference from any possible toc | |
| 8979 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8980 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8981 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8982 | continue; | |
| 8983 | ||
| 8984 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 8985 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8986 | continue; | |
| 8987 | ||
| 8988 | if (skip == NULL) | |
| 8989 | { | |
| 8990 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 8991 | if (skip == NULL) | |
| 8992 | goto error_ret; | |
| 8993 | } | |
| 8994 | ||
| 8995 | skip[rel->r_offset >> 3] | |
| 425b145b | 8996 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 8997 | } |
| ba761f19 AM |
8998 | } |
| 8999 | ||
| c5614fa4 AM |
9000 | if (skip == NULL) |
| 9001 | continue; | |
| 9002 | ||
| 9003 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9004 | if (used == NULL) | |
| 9005 | { | |
| 9006 | error_ret: | |
| 9007 | if (local_syms != NULL | |
| 9008 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9009 | free (local_syms); | |
| 9010 | if (sec != NULL | |
| 9011 | && relstart != NULL | |
| 9012 | && elf_section_data (sec)->relocs != relstart) | |
| 9013 | free (relstart); | |
| 425b145b AM |
9014 | if (toc_relocs != NULL |
| 9015 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9016 | free (toc_relocs); | |
| c5614fa4 AM |
9017 | if (skip != NULL) |
| 9018 | free (skip); | |
| 9019 | return FALSE; | |
| 9020 | } | |
| 9021 | ||
| 30038c59 AM |
9022 | /* Now check all kept sections that might reference the toc. |
| 9023 | Check the toc itself last. */ | |
| 9024 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9025 | : ibfd->sections); | |
| c5614fa4 | 9026 | sec != NULL; |
| c5614fa4 | 9027 | sec = (sec == toc ? NULL |
| c5614fa4 | 9028 | : sec->next == NULL ? toc |
| 30038c59 | 9029 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9030 | : sec->next)) |
| 9031 | { | |
| 9032 | int repeat; | |
| 9033 | ||
| 9034 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9035 | || discarded_section (sec) |
| c5614fa4 AM |
9036 | || get_opd_info (sec) |
| 9037 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9038 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9039 | continue; | |
| 9040 | ||
| 854b41e7 AM |
9041 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9042 | info->keep_memory); | |
| c5614fa4 | 9043 | if (relstart == NULL) |
| 2915c55b JK |
9044 | { |
| 9045 | free (used); | |
| 9046 | goto error_ret; | |
| 9047 | } | |
| c5614fa4 AM |
9048 | |
| 9049 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9050 | do |
| d4f1ee75 AM |
9051 | { |
| 9052 | repeat = 0; | |
| 9053 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9054 | { | |
| 9055 | enum elf_ppc64_reloc_type r_type; | |
| 9056 | unsigned long r_symndx; | |
| 9057 | asection *sym_sec; | |
| 9058 | struct elf_link_hash_entry *h; | |
| 9059 | Elf_Internal_Sym *sym; | |
| 9060 | bfd_vma val; | |
| 9061 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9062 | |
| d4f1ee75 AM |
9063 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9064 | switch (r_type) | |
| 9065 | { | |
| 9066 | default: | |
| 9067 | insn_check = no_check; | |
| 9068 | break; | |
| 98528052 | 9069 | |
| d4f1ee75 AM |
9070 | case R_PPC64_GOT_TLSLD16_HA: |
| 9071 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9072 | case R_PPC64_GOT_TPREL16_HA: | |
| 9073 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9074 | case R_PPC64_GOT16_HA: | |
| 9075 | case R_PPC64_TOC16_HA: | |
| 9076 | insn_check = check_ha; | |
| 9077 | break; | |
| 98528052 | 9078 | |
| d4f1ee75 AM |
9079 | case R_PPC64_GOT_TLSLD16_LO: |
| 9080 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9081 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9082 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9083 | case R_PPC64_GOT16_LO: | |
| 9084 | case R_PPC64_GOT16_LO_DS: | |
| 9085 | case R_PPC64_TOC16_LO: | |
| 9086 | case R_PPC64_TOC16_LO_DS: | |
| 9087 | insn_check = check_lo; | |
| 9088 | break; | |
| 9089 | } | |
| 560c8763 | 9090 | |
| d4f1ee75 AM |
9091 | if (insn_check != no_check) |
| 9092 | { | |
| 9093 | bfd_vma off = rel->r_offset & ~3; | |
| 9094 | unsigned char buf[4]; | |
| 9095 | unsigned int insn; | |
| c5614fa4 | 9096 | |
| d4f1ee75 AM |
9097 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9098 | { | |
| 9099 | free (used); | |
| 9100 | goto error_ret; | |
| 9101 | } | |
| 9102 | insn = bfd_get_32 (ibfd, buf); | |
| 9103 | if (insn_check == check_lo | |
| 9104 | ? !ok_lo_toc_insn (insn) | |
| 9105 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 9106 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9107 | { | |
| 9108 | char str[12]; | |
| 9109 | ||
| 9110 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9111 | sprintf (str, "%#08x", insn); | |
| 9112 | info->callbacks->einfo | |
| 9113 | (_("%P: %H: toc optimization is not supported for" | |
| 9114 | " %s instruction.\n"), | |
| 9115 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9116 | } | |
| 9117 | } | |
| c5614fa4 | 9118 | |
| d4f1ee75 AM |
9119 | switch (r_type) |
| 9120 | { | |
| 9121 | case R_PPC64_TOC16: | |
| 9122 | case R_PPC64_TOC16_LO: | |
| 9123 | case R_PPC64_TOC16_HI: | |
| 9124 | case R_PPC64_TOC16_HA: | |
| 9125 | case R_PPC64_TOC16_DS: | |
| 9126 | case R_PPC64_TOC16_LO_DS: | |
| 9127 | /* In case we're taking addresses of toc entries. */ | |
| 9128 | case R_PPC64_ADDR64: | |
| 9129 | break; | |
| c5614fa4 | 9130 | |
| d4f1ee75 AM |
9131 | default: |
| 9132 | continue; | |
| 9133 | } | |
| c5614fa4 | 9134 | |
| d4f1ee75 AM |
9135 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9136 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9137 | r_symndx, ibfd)) | |
| 9138 | { | |
| 9139 | free (used); | |
| 9140 | goto error_ret; | |
| 9141 | } | |
| c5614fa4 | 9142 | |
| d4f1ee75 AM |
9143 | if (sym_sec != toc) |
| 9144 | continue; | |
| c5614fa4 | 9145 | |
| d4f1ee75 AM |
9146 | if (h != NULL) |
| 9147 | val = h->root.u.def.value; | |
| 9148 | else | |
| 9149 | val = sym->st_value; | |
| 9150 | val += rel->r_addend; | |
| ba761f19 | 9151 | |
| d4f1ee75 AM |
9152 | if (val >= toc->size) |
| 9153 | continue; | |
| ba761f19 | 9154 | |
| d4f1ee75 AM |
9155 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9156 | { | |
| 9157 | bfd_vma off; | |
| 9158 | unsigned char opc; | |
| 9159 | ||
| 9160 | switch (r_type) | |
| 9161 | { | |
| 9162 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9163 | break; |
| ba761f19 | 9164 | |
| d4f1ee75 AM |
9165 | case R_PPC64_TOC16_LO_DS: |
| 9166 | off = rel->r_offset; | |
| 9167 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9168 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9169 | off, 1)) | |
| 9170 | { | |
| 9171 | free (used); | |
| 9172 | goto error_ret; | |
| 9173 | } | |
| 9174 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9175 | break; | |
| 9176 | /* Fall thru */ | |
| ba761f19 | 9177 | |
| d4f1ee75 AM |
9178 | default: |
| 9179 | /* Wrong sort of reloc, or not a ld. We may | |
| 9180 | as well clear ref_from_discarded too. */ | |
| 9181 | skip[val >> 3] = 0; | |
| 9182 | } | |
| 9183 | } | |
| 9184 | ||
| 9185 | if (sec != toc) | |
| 9186 | used[val >> 3] = 1; | |
| 9187 | /* For the toc section, we only mark as used if this | |
| 9188 | entry itself isn't unused. */ | |
| 9189 | else if ((used[rel->r_offset >> 3] | |
| 9190 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9191 | && !used[val >> 3]) | |
| 9192 | { | |
| 9193 | /* Do all the relocs again, to catch reference | |
| 9194 | chains. */ | |
| 9195 | repeat = 1; | |
| 9196 | used[val >> 3] = 1; | |
| 9197 | } | |
| 9198 | } | |
| 9199 | } | |
| c5614fa4 | 9200 | while (repeat); |
| 854b41e7 AM |
9201 | |
| 9202 | if (elf_section_data (sec)->relocs != relstart) | |
| 9203 | free (relstart); | |
| c5614fa4 AM |
9204 | } |
| 9205 | ||
| 9206 | /* Merge the used and skip arrays. Assume that TOC | |
| 9207 | doublewords not appearing as either used or unused belong | |
| 9208 | to to an entry more than one doubleword in size. */ | |
| 9209 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9210 | drop < skip + (toc->size + 7) / 8; | |
| 9211 | ++drop, ++keep) | |
| 9212 | { | |
| 9213 | if (*keep) | |
| 9214 | { | |
| ba761f19 AM |
9215 | *drop &= ~ref_from_discarded; |
| 9216 | if ((*drop & can_optimize) != 0) | |
| 9217 | some_unused = 1; | |
| c5614fa4 AM |
9218 | last = 0; |
| 9219 | } | |
| b140b010 | 9220 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9221 | { |
| 9222 | some_unused = 1; | |
| ba761f19 | 9223 | last = ref_from_discarded; |
| c5614fa4 AM |
9224 | } |
| 9225 | else | |
| 9226 | *drop = last; | |
| 9227 | } | |
| 9228 | ||
| 9229 | free (used); | |
| 9230 | ||
| 9231 | if (some_unused) | |
| 9232 | { | |
| 9233 | bfd_byte *contents, *src; | |
| 9234 | unsigned long off; | |
| d62b3684 | 9235 | Elf_Internal_Sym *sym; |
| ba761f19 | 9236 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9237 | |
| 9238 | /* Shuffle the toc contents, and at the same time convert the | |
| 9239 | skip array from booleans into offsets. */ | |
| 9240 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9241 | goto error_ret; | |
| 9242 | ||
| 9243 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9244 | ||
| 9245 | for (src = contents, off = 0, drop = skip; | |
| 9246 | src < contents + toc->size; | |
| 9247 | src += 8, ++drop) | |
| 9248 | { | |
| ba761f19 AM |
9249 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9250 | off += 8; | |
| c5614fa4 AM |
9251 | else if (off != 0) |
| 9252 | { | |
| 9253 | *drop = off; | |
| 9254 | memcpy (src - off, src, 8); | |
| 9255 | } | |
| 9256 | } | |
| 854b41e7 | 9257 | *drop = off; |
| c5614fa4 AM |
9258 | toc->rawsize = toc->size; |
| 9259 | toc->size = src - contents - off; | |
| 9260 | ||
| ba761f19 AM |
9261 | /* Adjust addends for relocs against the toc section sym, |
| 9262 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9263 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9264 | { | |
| 9265 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9266 | || discarded_section (sec)) |
| c5614fa4 AM |
9267 | continue; |
| 9268 | ||
| 9269 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9270 | info->keep_memory); |
| c5614fa4 AM |
9271 | if (relstart == NULL) |
| 9272 | goto error_ret; | |
| 9273 | ||
| 9274 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9275 | { | |
| 9276 | enum elf_ppc64_reloc_type r_type; | |
| 9277 | unsigned long r_symndx; | |
| 9278 | asection *sym_sec; | |
| 9279 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9280 | bfd_vma val; |
| c5614fa4 AM |
9281 | |
| 9282 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9283 | switch (r_type) | |
| 9284 | { | |
| 9285 | default: | |
| 9286 | continue; | |
| 9287 | ||
| 9288 | case R_PPC64_TOC16: | |
| 9289 | case R_PPC64_TOC16_LO: | |
| 9290 | case R_PPC64_TOC16_HI: | |
| 9291 | case R_PPC64_TOC16_HA: | |
| 9292 | case R_PPC64_TOC16_DS: | |
| 9293 | case R_PPC64_TOC16_LO_DS: | |
| 9294 | case R_PPC64_ADDR64: | |
| 9295 | break; | |
| 9296 | } | |
| 9297 | ||
| 9298 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9299 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9300 | r_symndx, ibfd)) | |
| 9301 | goto error_ret; | |
| 9302 | ||
| ba761f19 | 9303 | if (sym_sec != toc) |
| c5614fa4 AM |
9304 | continue; |
| 9305 | ||
| ba761f19 AM |
9306 | if (h != NULL) |
| 9307 | val = h->root.u.def.value; | |
| 9308 | else | |
| 9309 | { | |
| 9310 | val = sym->st_value; | |
| 9311 | if (val != 0) | |
| 9312 | local_toc_syms = TRUE; | |
| 9313 | } | |
| 9314 | ||
| 9315 | val += rel->r_addend; | |
| 854b41e7 AM |
9316 | |
| 9317 | if (val > toc->rawsize) | |
| 9318 | val = toc->rawsize; | |
| ba761f19 AM |
9319 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9320 | continue; | |
| 9321 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9322 | { | |
| 9323 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9324 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9325 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9326 | ||
| 9327 | switch (r_type) | |
| 9328 | { | |
| 9329 | case R_PPC64_TOC16_HA: | |
| 9330 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9331 | break; | |
| 9332 | ||
| 9333 | case R_PPC64_TOC16_LO_DS: | |
| 9334 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9335 | break; | |
| 9336 | ||
| 9337 | default: | |
| 28942f62 AM |
9338 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9339 | ppc_howto_init (); | |
| b140b010 | 9340 | info->callbacks->einfo |
| bc30df16 | 9341 | (_("%P: %H: %s references " |
| b140b010 AM |
9342 | "optimized away TOC entry\n"), |
| 9343 | ibfd, sec, rel->r_offset, | |
| 9344 | ppc64_elf_howto_table[r_type]->name); | |
| 9345 | bfd_set_error (bfd_error_bad_value); | |
| 9346 | goto error_ret; | |
| ba761f19 AM |
9347 | } |
| 9348 | rel->r_addend = tocrel->r_addend; | |
| 9349 | elf_section_data (sec)->relocs = relstart; | |
| 9350 | continue; | |
| 9351 | } | |
| 9352 | ||
| 9353 | if (h != NULL || sym->st_value != 0) | |
| 9354 | continue; | |
| 854b41e7 AM |
9355 | |
| 9356 | rel->r_addend -= skip[val >> 3]; | |
| 9357 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9358 | } |
| 854b41e7 AM |
9359 | |
| 9360 | if (elf_section_data (sec)->relocs != relstart) | |
| 9361 | free (relstart); | |
| c5614fa4 AM |
9362 | } |
| 9363 | ||
| 9364 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9365 | but handle them anyway. */ | |
| df22d223 AM |
9366 | if (local_syms != NULL) |
| 9367 | for (sym = local_syms; | |
| 9368 | sym < local_syms + symtab_hdr->sh_info; | |
| 9369 | ++sym) | |
| 9370 | if (sym->st_value != 0 | |
| 9371 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9372 | { | |
| 9373 | unsigned long i; | |
| 854b41e7 | 9374 | |
| df22d223 AM |
9375 | if (sym->st_value > toc->rawsize) |
| 9376 | i = toc->rawsize >> 3; | |
| 9377 | else | |
| 9378 | i = sym->st_value >> 3; | |
| 854b41e7 | 9379 | |
| df22d223 AM |
9380 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9381 | { | |
| 9382 | if (local_toc_syms) | |
| 9383 | (*_bfd_error_handler) | |
| 9384 | (_("%s defined on removed toc entry"), | |
| 9385 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9386 | do | |
| 9387 | ++i; | |
| 9388 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9389 | sym->st_value = (bfd_vma) i << 3; | |
| 9390 | } | |
| d62b3684 | 9391 | |
| df22d223 AM |
9392 | sym->st_value -= skip[i]; |
| 9393 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9394 | } | |
| c5614fa4 | 9395 | |
| 854b41e7 | 9396 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9397 | if (toc_inf.global_toc_syms) |
| 9398 | { | |
| 9399 | toc_inf.toc = toc; | |
| 9400 | toc_inf.skip = skip; | |
| 9401 | toc_inf.global_toc_syms = FALSE; | |
| 9402 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9403 | &toc_inf); | |
| 9404 | } | |
| 854b41e7 AM |
9405 | |
| 9406 | if (toc->reloc_count != 0) | |
| 9407 | { | |
| d4730f92 | 9408 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9409 | Elf_Internal_Rela *wrel; |
| 9410 | bfd_size_type sz; | |
| 9411 | ||
| 854b41e7 | 9412 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9413 | if (toc_relocs == NULL) |
| 9414 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9415 | info->keep_memory); | |
| 9416 | if (toc_relocs == NULL) | |
| 9417 | goto error_ret; | |
| 9418 | ||
| 425b145b AM |
9419 | wrel = toc_relocs; |
| 9420 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9421 | if ((skip[rel->r_offset >> 3] |
| 9422 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9423 | { |
| 9424 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9425 | wrel->r_info = rel->r_info; | |
| 9426 | wrel->r_addend = rel->r_addend; | |
| 9427 | ++wrel; | |
| 9428 | } | |
| 9429 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9430 | &local_syms, NULL, NULL)) | |
| 9431 | goto error_ret; | |
| 9432 | ||
| 425b145b AM |
9433 | elf_section_data (toc)->relocs = toc_relocs; |
| 9434 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9435 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9436 | sz = rel_hdr->sh_entsize; | |
| 9437 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9438 | } |
| c5614fa4 | 9439 | } |
| 28be611c AM |
9440 | else if (toc_relocs != NULL |
| 9441 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9442 | free (toc_relocs); |
| c5614fa4 AM |
9443 | |
| 9444 | if (local_syms != NULL | |
| 9445 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9446 | { | |
| 9447 | if (!info->keep_memory) | |
| 9448 | free (local_syms); | |
| 9449 | else | |
| 9450 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9451 | } | |
| 9452 | free (skip); | |
| 9453 | } | |
| 9454 | ||
| 9455 | return TRUE; | |
| 9456 | } | |
| 9457 | ||
| 1bbe0902 AM |
9458 | /* Return true iff input section I references the TOC using |
| 9459 | instructions limited to +/-32k offsets. */ | |
| 9460 | ||
| 9461 | bfd_boolean | |
| 9462 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9463 | { | |
| 9464 | return (is_ppc64_elf (i->owner) | |
| 9465 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9466 | } | |
| 9467 | ||
| 927be08e AM |
9468 | /* Allocate space for one GOT entry. */ |
| 9469 | ||
| 9470 | static void | |
| 9471 | allocate_got (struct elf_link_hash_entry *h, | |
| 9472 | struct bfd_link_info *info, | |
| 9473 | struct got_entry *gent) | |
| 9474 | { | |
| 9475 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9476 | bfd_boolean dyn; | |
| 9477 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9478 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9479 | ? 16 : 8); | |
| 9480 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9481 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9482 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9483 | ||
| 9484 | gent->got.offset = got->size; | |
| 9485 | got->size += entsize; | |
| 9486 | ||
| 9487 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9488 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9489 | { |
| 33e44f2e | 9490 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9491 | htab->got_reli_size += rentsize; |
| 927be08e | 9492 | } |
| 0e1862bb | 9493 | else if ((bfd_link_pic (info) |
| 19e08130 AM |
9494 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 9495 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9496 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9497 | { |
| 19e08130 | 9498 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9499 | relgot->size += rentsize; |
| 927be08e AM |
9500 | } |
| 9501 | } | |
| 9502 | ||
| 7865406b AM |
9503 | /* This function merges got entries in the same toc group. */ |
| 9504 | ||
| 9505 | static void | |
| 9506 | merge_got_entries (struct got_entry **pent) | |
| 9507 | { | |
| 9508 | struct got_entry *ent, *ent2; | |
| 9509 | ||
| 9510 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9511 | if (!ent->is_indirect) | |
| 9512 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9513 | if (!ent2->is_indirect | |
| 9514 | && ent2->addend == ent->addend | |
| 9515 | && ent2->tls_type == ent->tls_type | |
| 9516 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9517 | { | |
| 9518 | ent2->is_indirect = TRUE; | |
| 9519 | ent2->got.ent = ent; | |
| 9520 | } | |
| 9521 | } | |
| 9522 | ||
| 65f38f15 AM |
9523 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9524 | dynamic relocs. */ | |
| 5bd4f169 | 9525 | |
| b34976b6 | 9526 | static bfd_boolean |
| 4ce794b7 | 9527 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9528 | { |
| 65f38f15 AM |
9529 | struct bfd_link_info *info; |
| 9530 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9531 | asection *s; |
| 65f38f15 | 9532 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9533 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9534 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9535 | |
| e92d460e | 9536 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9537 | return TRUE; |
| 5bd4f169 | 9538 | |
| 65f38f15 AM |
9539 | info = (struct bfd_link_info *) inf; |
| 9540 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9541 | if (htab == NULL) |
| 9542 | return FALSE; | |
| 5bd4f169 | 9543 | |
| e054468f AM |
9544 | if ((htab->elf.dynamic_sections_created |
| 9545 | && h->dynindx != -1 | |
| 0e1862bb | 9546 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
| e054468f | 9547 | || h->type == STT_GNU_IFUNC) |
| 5bd4f169 | 9548 | { |
| 411e1bfb AM |
9549 | struct plt_entry *pent; |
| 9550 | bfd_boolean doneone = FALSE; | |
| 9551 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9552 | if (pent->plt.refcount > 0) | |
| 9553 | { | |
| 25f23106 AM |
9554 | if (!htab->elf.dynamic_sections_created |
| 9555 | || h->dynindx == -1) | |
| e054468f | 9556 | { |
| 33e44f2e | 9557 | s = htab->elf.iplt; |
| e054468f | 9558 | pent->plt.offset = s->size; |
| b9e5796b | 9559 | s->size += PLT_ENTRY_SIZE (htab); |
| 33e44f2e | 9560 | s = htab->elf.irelplt; |
| e054468f AM |
9561 | } |
| 9562 | else | |
| 9563 | { | |
| 9564 | /* If this is the first .plt entry, make room for the special | |
| 9565 | first entry. */ | |
| 33e44f2e | 9566 | s = htab->elf.splt; |
| e054468f | 9567 | if (s->size == 0) |
| b9e5796b | 9568 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); |
| e054468f AM |
9569 | |
| 9570 | pent->plt.offset = s->size; | |
| 9571 | ||
| 9572 | /* Make room for this entry. */ | |
| b9e5796b | 9573 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f AM |
9574 | |
| 9575 | /* Make room for the .glink code. */ | |
| 9576 | s = htab->glink; | |
| 9577 | if (s->size == 0) | |
| 9578 | s->size += GLINK_CALL_STUB_SIZE; | |
| b9e5796b AM |
9579 | if (htab->opd_abi) |
| 9580 | { | |
| 9581 | /* We need bigger stubs past index 32767. */ | |
| 9582 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9583 | s->size += 4; | |
| 9584 | s->size += 2*4; | |
| 9585 | } | |
| 9586 | else | |
| e054468f | 9587 | s->size += 4; |
| e054468f AM |
9588 | |
| 9589 | /* We also need to make an entry in the .rela.plt section. */ | |
| 33e44f2e | 9590 | s = htab->elf.srelplt; |
| e054468f | 9591 | } |
| eea6121a | 9592 | s->size += sizeof (Elf64_External_Rela); |
| 411e1bfb AM |
9593 | doneone = TRUE; |
| 9594 | } | |
| 9595 | else | |
| 9596 | pent->plt.offset = (bfd_vma) -1; | |
| 9597 | if (!doneone) | |
| 65f38f15 | 9598 | { |
| 411e1bfb | 9599 | h->plt.plist = NULL; |
| f5385ebf | 9600 | h->needs_plt = 0; |
| 65f38f15 AM |
9601 | } |
| 9602 | } | |
| 9603 | else | |
| 9604 | { | |
| 411e1bfb | 9605 | h->plt.plist = NULL; |
| f5385ebf | 9606 | h->needs_plt = 0; |
| 65f38f15 AM |
9607 | } |
| 9608 | ||
| 951fd09b AM |
9609 | eh = (struct ppc_link_hash_entry *) h; |
| 9610 | /* Run through the TLS GD got entries first if we're changing them | |
| 9611 | to TPREL. */ | |
| e7b938ca | 9612 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9613 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9614 | if (gent->got.refcount > 0 | |
| 9615 | && (gent->tls_type & TLS_GD) != 0) | |
| 9616 | { | |
| 9617 | /* This was a GD entry that has been converted to TPREL. If | |
| 9618 | there happens to be a TPREL entry we can use that one. */ | |
| 9619 | struct got_entry *ent; | |
| 9620 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9621 | if (ent->got.refcount > 0 | |
| 9622 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9623 | && ent->addend == gent->addend |
| 9624 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9625 | { |
| 9626 | gent->got.refcount = 0; | |
| 9627 | break; | |
| 9628 | } | |
| 9629 | ||
| 9630 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9631 | if (gent->got.refcount != 0) | |
| 9632 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9633 | } | |
| 9634 | ||
| 7865406b AM |
9635 | /* Remove any list entry that won't generate a word in the GOT before |
| 9636 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9637 | entries. */ | |
| 0b8bcf0d AM |
9638 | pgent = &h->got.glist; |
| 9639 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9640 | if (gent->got.refcount > 0) |
| 7865406b AM |
9641 | { |
| 9642 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9643 | && !h->def_dynamic) | |
| 9644 | { | |
| 9645 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9646 | *pgent = gent->next; | |
| 9647 | } | |
| 9648 | else | |
| 9649 | pgent = &gent->next; | |
| 9650 | } | |
| 9651 | else | |
| 9652 | *pgent = gent->next; | |
| 9653 | ||
| 9654 | if (!htab->do_multi_toc) | |
| 9655 | merge_got_entries (&h->got.glist); | |
| 9656 | ||
| 9657 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9658 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9659 | { |
| 9660 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9661 | Undefined weak syms won't yet be marked as dynamic, |
| 9662 | nor will all TLS symbols. */ | |
| 411e1bfb | 9663 | if (h->dynindx == -1 |
| b099ab9f | 9664 | && !h->forced_local |
| 25f23106 | 9665 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9666 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9667 | { |
| c152c796 | 9668 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9669 | return FALSE; |
| 9670 | } | |
| 65f38f15 | 9671 | |
| 0c8d6e5c | 9672 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9673 | abort (); |
| 0ffa91dd | 9674 | |
| 927be08e | 9675 | allocate_got (h, info, gent); |
| 411e1bfb | 9676 | } |
| 65f38f15 | 9677 | |
| b099ab9f | 9678 | if (eh->dyn_relocs == NULL |
| 25f23106 | 9679 | || (!htab->elf.dynamic_sections_created |
| 14b5f73f | 9680 | && h->type != STT_GNU_IFUNC)) |
| b34976b6 | 9681 | return TRUE; |
| 65f38f15 AM |
9682 | |
| 9683 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 9684 | dynamic pc-relative relocs against symbols which turn out to be | |
| 9685 | defined in regular objects. For the normal shared case, discard | |
| 9686 | space for relocs that have become local due to symbol visibility | |
| 9687 | changes. */ | |
| 9688 | ||
| 0e1862bb | 9689 | if (bfd_link_pic (info)) |
| 65f38f15 | 9690 | { |
| 9c7a29a3 | 9691 | /* Relocs that use pc_count are those that appear on a call insn, |
| 1d483afe | 9692 | or certain REL relocs (see must_be_dyn_reloc) that can be |
| 9c7a29a3 AM |
9693 | generated via assembly. We want calls to protected symbols to |
| 9694 | resolve directly to the function rather than going via the plt. | |
| 9695 | If people want function pointer comparisons to work as expected | |
| 9696 | then they should avoid writing weird assembly. */ | |
| 09695f56 | 9697 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 65f38f15 | 9698 | { |
| 6061a67d | 9699 | struct elf_dyn_relocs **pp; |
| 65f38f15 AM |
9700 | |
| 9701 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 5bd4f169 | 9702 | { |
| 65f38f15 AM |
9703 | p->count -= p->pc_count; |
| 9704 | p->pc_count = 0; | |
| 9705 | if (p->count == 0) | |
| 9706 | *pp = p->next; | |
| 9707 | else | |
| 9708 | pp = &p->next; | |
| 5bd4f169 | 9709 | } |
| 65f38f15 | 9710 | } |
| 4e795f50 AM |
9711 | |
| 9712 | /* Also discard relocs on undefined weak syms with non-default | |
| 9713 | visibility. */ | |
| cab87ef9 AM |
9714 | if (eh->dyn_relocs != NULL |
| 9715 | && h->root.type == bfd_link_hash_undefweak) | |
| dfbb6ac9 AM |
9716 | { |
| 9717 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9718 | eh->dyn_relocs = NULL; | |
| 9719 | ||
| 9720 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9721 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9722 | else if (h->dynindx == -1 | |
| 9723 | && !h->forced_local) | |
| 9724 | { | |
| 9725 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9726 | return FALSE; | |
| 9727 | } | |
| 9728 | } | |
| 65f38f15 | 9729 | } |
| 25f23106 AM |
9730 | else if (h->type == STT_GNU_IFUNC) |
| 9731 | { | |
| 9732 | if (!h->non_got_ref) | |
| 9733 | eh->dyn_relocs = NULL; | |
| 9734 | } | |
| f4656909 | 9735 | else if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 AM |
9736 | { |
| 9737 | /* For the non-shared case, discard space for relocs against | |
| 9738 | symbols which turn out to need copy relocs or are not | |
| 9739 | dynamic. */ | |
| 9740 | ||
| f5385ebf | 9741 | if (!h->non_got_ref |
| f5385ebf | 9742 | && !h->def_regular) |
| 65f38f15 AM |
9743 | { |
| 9744 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9745 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9746 | if (h->dynindx == -1 | |
| f5385ebf | 9747 | && !h->forced_local) |
| 65f38f15 | 9748 | { |
| c152c796 | 9749 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| b34976b6 | 9750 | return FALSE; |
| 65f38f15 AM |
9751 | } |
| 9752 | ||
| 9753 | /* If that succeeded, we know we'll be keeping all the | |
| 9754 | relocs. */ | |
| 9755 | if (h->dynindx != -1) | |
| 9756 | goto keep; | |
| 9757 | } | |
| 9758 | ||
| 9759 | eh->dyn_relocs = NULL; | |
| 9760 | ||
| ec338859 | 9761 | keep: ; |
| 65f38f15 AM |
9762 | } |
| 9763 | ||
| 9764 | /* Finally, allocate space. */ | |
| 9765 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9766 | { | |
| 9767 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 19e08130 | 9768 | if (eh->elf.type == STT_GNU_IFUNC) |
| 33e44f2e | 9769 | sreloc = htab->elf.irelplt; |
| eea6121a | 9770 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
| 65f38f15 AM |
9771 | } |
| 9772 | ||
| b34976b6 | 9773 | return TRUE; |
| 65f38f15 AM |
9774 | } |
| 9775 | ||
| a345bc8d AM |
9776 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9777 | to set up space for global entry stubs. These are put in glink, | |
| 9778 | after the branch table. */ | |
| 65f38f15 | 9779 | |
| b34976b6 | 9780 | static bfd_boolean |
| a345bc8d | 9781 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9782 | { |
| a345bc8d AM |
9783 | struct bfd_link_info *info; |
| 9784 | struct ppc_link_hash_table *htab; | |
| 9785 | struct plt_entry *pent; | |
| 9786 | asection *s; | |
| 65f38f15 | 9787 | |
| a345bc8d AM |
9788 | if (h->root.type == bfd_link_hash_indirect) |
| 9789 | return TRUE; | |
| 65f38f15 | 9790 | |
| a345bc8d AM |
9791 | if (!h->pointer_equality_needed) |
| 9792 | return TRUE; | |
| 65f38f15 | 9793 | |
| a345bc8d AM |
9794 | if (h->def_regular) |
| 9795 | return TRUE; | |
| 65f38f15 | 9796 | |
| a345bc8d AM |
9797 | info = inf; |
| 9798 | htab = ppc_hash_table (info); | |
| 9799 | if (htab == NULL) | |
| 9800 | return FALSE; | |
| 9801 | ||
| 9802 | s = htab->glink; | |
| 9803 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9804 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9805 | && pent->addend == 0) | |
| 9806 | { | |
| afe397ea AM |
9807 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9808 | and we are not generating a shared library or pie, then we | |
| 9809 | need to define the symbol in the executable on a call stub. | |
| 9810 | This is to avoid text relocations. */ | |
| a345bc8d | 9811 | s->size = (s->size + 15) & -16; |
| afe397ea AM |
9812 | h->root.u.def.section = s; |
| 9813 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9814 | s->size += 16; |
| 9815 | break; | |
| 9816 | } | |
| 9817 | return TRUE; | |
| 9818 | } | |
| 9819 | ||
| 9820 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9821 | read-only sections. */ | |
| 9822 | ||
| 9823 | static bfd_boolean | |
| 9824 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9825 | { | |
| 9826 | if (h->root.type == bfd_link_hash_indirect) | |
| 9827 | return TRUE; | |
| 9828 | ||
| 9829 | if (readonly_dynrelocs (h)) | |
| 9830 | { | |
| 9831 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9832 | ||
| 9833 | /* Not an error, just cut short the traversal. */ | |
| 9834 | return FALSE; | |
| 65f38f15 | 9835 | } |
| b34976b6 | 9836 | return TRUE; |
| 65f38f15 AM |
9837 | } |
| 9838 | ||
| 9839 | /* Set the sizes of the dynamic sections. */ | |
| 9840 | ||
| b34976b6 | 9841 | static bfd_boolean |
| ee67d69a | 9842 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9843 | struct bfd_link_info *info) |
| 65f38f15 AM |
9844 | { |
| 9845 | struct ppc_link_hash_table *htab; | |
| 9846 | bfd *dynobj; | |
| 9847 | asection *s; | |
| b34976b6 | 9848 | bfd_boolean relocs; |
| 65f38f15 | 9849 | bfd *ibfd; |
| 7865406b | 9850 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9851 | |
| 9852 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9853 | if (htab == NULL) |
| 9854 | return FALSE; | |
| 9855 | ||
| 65f38f15 AM |
9856 | dynobj = htab->elf.dynobj; |
| 9857 | if (dynobj == NULL) | |
| 9858 | abort (); | |
| 9859 | ||
| 9860 | if (htab->elf.dynamic_sections_created) | |
| 9861 | { | |
| 9862 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9863 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9864 | { |
| 3d4d4302 | 9865 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9866 | if (s == NULL) |
| 9867 | abort (); | |
| eea6121a | 9868 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9869 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9870 | } | |
| 9871 | } | |
| 9872 | ||
| 9873 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9874 | relocs. */ | |
| c72f2fb2 | 9875 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9876 | { |
| 411e1bfb AM |
9877 | struct got_entry **lgot_ents; |
| 9878 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9879 | struct plt_entry **local_plt; |
| 9880 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9881 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9882 | bfd_size_type locsymcount; |
| 9883 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9884 | |
| 0c8d6e5c | 9885 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9886 | continue; |
| 9887 | ||
| 9888 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9889 | { | |
| 19e08130 | 9890 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9891 | |
| 6edfbbad | 9892 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9893 | { |
| ec338859 AM |
9894 | if (!bfd_is_abs_section (p->sec) |
| 9895 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9896 | { | |
| 9897 | /* Input section has been discarded, either because | |
| 9898 | it is a copy of a linkonce section or due to | |
| 9899 | linker script /DISCARD/, so we'll be discarding | |
| 9900 | the relocs too. */ | |
| 9901 | } | |
| 248866a8 | 9902 | else if (p->count != 0) |
| ec338859 | 9903 | { |
| 19e08130 AM |
9904 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9905 | if (p->ifunc) | |
| 33e44f2e | 9906 | srel = htab->elf.irelplt; |
| eea6121a | 9907 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9908 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9909 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9910 | } |
| 65f38f15 AM |
9911 | } |
| 9912 | } | |
| 9913 | ||
| 411e1bfb AM |
9914 | lgot_ents = elf_local_got_ents (ibfd); |
| 9915 | if (!lgot_ents) | |
| 65f38f15 AM |
9916 | continue; |
| 9917 | ||
| 0ffa91dd | 9918 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9919 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9920 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9921 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9922 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9923 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9924 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9925 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9926 | { |
| 0b8bcf0d | 9927 | struct got_entry **pent, *ent; |
| 411e1bfb | 9928 | |
| 0b8bcf0d AM |
9929 | pent = lgot_ents; |
| 9930 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9931 | if (ent->got.refcount > 0) |
| 9932 | { | |
| e7b938ca | 9933 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9934 | { |
| 927be08e | 9935 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9936 | *pent = ent->next; |
| 411e1bfb AM |
9937 | } |
| 9938 | else | |
| 9939 | { | |
| 19e08130 AM |
9940 | unsigned int ent_size = 8; |
| 9941 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9942 | ||
| eea6121a | 9943 | ent->got.offset = s->size; |
| e7b938ca | 9944 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9945 | { |
| 19e08130 AM |
9946 | ent_size *= 2; |
| 9947 | rel_size *= 2; | |
| 9948 | } | |
| 9949 | s->size += ent_size; | |
| 9950 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9951 | { | |
| 33e44f2e | 9952 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
9953 | htab->got_reli_size += rel_size; |
| 9954 | } | |
| 0e1862bb | 9955 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
9956 | { |
| 9957 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9958 | srel->size += rel_size; | |
| 927be08e | 9959 | } |
| 0b8bcf0d | 9960 | pent = &ent->next; |
| 411e1bfb AM |
9961 | } |
| 9962 | } | |
| 9963 | else | |
| 0b8bcf0d | 9964 | *pent = ent->next; |
| 65f38f15 | 9965 | } |
| e054468f AM |
9966 | |
| 9967 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9968 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9969 | { | |
| 9970 | struct plt_entry *ent; | |
| 9971 | ||
| 9972 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9973 | if (ent->plt.refcount > 0) | |
| 9974 | { | |
| 33e44f2e | 9975 | s = htab->elf.iplt; |
| e054468f | 9976 | ent->plt.offset = s->size; |
| b9e5796b | 9977 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 9978 | |
| 33e44f2e | 9979 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9980 | } |
| 9981 | else | |
| 9982 | ent->plt.offset = (bfd_vma) -1; | |
| 9983 | } | |
| 65f38f15 AM |
9984 | } |
| 9985 | ||
| 9986 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9987 | sym dynamic relocs. */ | |
| 4ce794b7 | 9988 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
9989 | /* Stash the end of glink branch table. */ |
| 9990 | if (htab->glink != NULL) | |
| 9991 | htab->glink->rawsize = htab->glink->size; | |
| 9992 | ||
| 0e1862bb | 9993 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 9994 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 9995 | |
| 7865406b | 9996 | first_tlsld = NULL; |
| c72f2fb2 | 9997 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 9998 | { |
| 7865406b AM |
9999 | struct got_entry *ent; |
| 10000 | ||
| 0c8d6e5c | 10001 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10002 | continue; |
| 10003 | ||
| 7865406b AM |
10004 | ent = ppc64_tlsld_got (ibfd); |
| 10005 | if (ent->got.refcount > 0) | |
| 102890f0 | 10006 | { |
| 7865406b | 10007 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10008 | { |
| 7865406b AM |
10009 | ent->is_indirect = TRUE; |
| 10010 | ent->got.ent = first_tlsld; | |
| 10011 | } | |
| 10012 | else | |
| 10013 | { | |
| 10014 | if (first_tlsld == NULL) | |
| 10015 | first_tlsld = ent; | |
| 10016 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10017 | ent->got.offset = s->size; | |
| 10018 | ent->owner = ibfd; | |
| 10019 | s->size += 16; | |
| 0e1862bb | 10020 | if (bfd_link_pic (info)) |
| 7865406b AM |
10021 | { |
| 10022 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10023 | srel->size += sizeof (Elf64_External_Rela); | |
| 10024 | } | |
| 102890f0 AM |
10025 | } |
| 10026 | } | |
| 10027 | else | |
| 7865406b | 10028 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10029 | } |
| 10030 | ||
| 65f38f15 AM |
10031 | /* We now have determined the sizes of the various dynamic sections. |
| 10032 | Allocate memory for them. */ | |
| b34976b6 | 10033 | relocs = FALSE; |
| 65f38f15 AM |
10034 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10035 | { | |
| 10036 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10037 | continue; | |
| 10038 | ||
| 4ce794b7 | 10039 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10040 | /* These haven't been allocated yet; don't strip. */ |
| 10041 | continue; | |
| 33e44f2e AM |
10042 | else if (s == htab->elf.sgot |
| 10043 | || s == htab->elf.splt | |
| 10044 | || s == htab->elf.iplt | |
| c456f082 AM |
10045 | || s == htab->glink |
| 10046 | || s == htab->dynbss) | |
| 65f38f15 AM |
10047 | { |
| 10048 | /* Strip this section if we don't need it; see the | |
| 10049 | comment below. */ | |
| 5bd4f169 | 10050 | } |
| 58d180e8 AM |
10051 | else if (s == htab->glink_eh_frame) |
| 10052 | { | |
| 10053 | if (!bfd_is_abs_section (s->output_section)) | |
| 10054 | /* Not sized yet. */ | |
| 10055 | continue; | |
| 10056 | } | |
| 70cc837d | 10057 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10058 | { |
| c456f082 | 10059 | if (s->size != 0) |
| 5bd4f169 | 10060 | { |
| 33e44f2e | 10061 | if (s != htab->elf.srelplt) |
| b34976b6 | 10062 | relocs = TRUE; |
| 5bd4f169 AM |
10063 | |
| 10064 | /* We use the reloc_count field as a counter if we need | |
| 10065 | to copy relocs into the output file. */ | |
| 10066 | s->reloc_count = 0; | |
| 10067 | } | |
| 10068 | } | |
| 65f38f15 | 10069 | else |
| 5bd4f169 AM |
10070 | { |
| 10071 | /* It's not one of our sections, so don't allocate space. */ | |
| 10072 | continue; | |
| 10073 | } | |
| 10074 | ||
| eea6121a | 10075 | if (s->size == 0) |
| 5bd4f169 | 10076 | { |
| c456f082 AM |
10077 | /* If we don't need this section, strip it from the |
| 10078 | output file. This is mostly to handle .rela.bss and | |
| 10079 | .rela.plt. We must create both sections in | |
| 10080 | create_dynamic_sections, because they must be created | |
| 10081 | before the linker maps input sections to output | |
| 10082 | sections. The linker does that before | |
| 10083 | adjust_dynamic_symbol is called, and it is that | |
| 10084 | function which decides whether anything needs to go | |
| 10085 | into these sections. */ | |
| 8423293d | 10086 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10087 | continue; |
| 10088 | } | |
| 10089 | ||
| c456f082 | 10090 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10091 | continue; |
| 10092 | ||
| 65f38f15 AM |
10093 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10094 | here in case unused entries are not reclaimed before the | |
| 10095 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10096 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10097 | sections instead of garbage. | |
| 10098 | We also rely on the section contents being zero when writing | |
| 10099 | the GOT. */ | |
| eea6121a | 10100 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10101 | if (s->contents == NULL) |
| b34976b6 | 10102 | return FALSE; |
| 5bd4f169 AM |
10103 | } |
| 10104 | ||
| c72f2fb2 | 10105 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10106 | { |
| 0c8d6e5c | 10107 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10108 | continue; |
| 10109 | ||
| e717da7e | 10110 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10111 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10112 | { |
| eea6121a | 10113 | if (s->size == 0) |
| 8423293d | 10114 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10115 | else |
| 10116 | { | |
| eea6121a | 10117 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10118 | if (s->contents == NULL) |
| 10119 | return FALSE; | |
| 10120 | } | |
| 10121 | } | |
| 10122 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10123 | if (s != NULL) | |
| 10124 | { | |
| eea6121a | 10125 | if (s->size == 0) |
| 8423293d | 10126 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10127 | else |
| 10128 | { | |
| eea6121a | 10129 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10130 | if (s->contents == NULL) |
| 10131 | return FALSE; | |
| 10132 | relocs = TRUE; | |
| 10133 | s->reloc_count = 0; | |
| 10134 | } | |
| 10135 | } | |
| 10136 | } | |
| 10137 | ||
| e86ce104 | 10138 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10139 | { |
| e8910a83 AM |
10140 | bfd_boolean tls_opt; |
| 10141 | ||
| 5bd4f169 AM |
10142 | /* Add some entries to the .dynamic section. We fill in the |
| 10143 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10144 | must add the entries now so that we get the correct size for | |
| 10145 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10146 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10147 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10148 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10149 | |
| 0e1862bb | 10150 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10151 | { |
| dc810e39 | 10152 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10153 | return FALSE; |
| 5bd4f169 AM |
10154 | } |
| 10155 | ||
| 33e44f2e | 10156 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10157 | { |
| dc810e39 AM |
10158 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10159 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10160 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10161 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10162 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10163 | return FALSE; |
| 5bd4f169 AM |
10164 | } |
| 10165 | ||
| ee67d69a | 10166 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10167 | { |
| 10168 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10169 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10170 | return FALSE; |
| 19397422 AM |
10171 | } |
| 10172 | ||
| 7c9cf415 | 10173 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10174 | && htab->tls_get_addr_fd != NULL |
| 10175 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10176 | if (tls_opt || !htab->opd_abi) | |
| 10177 | { | |
| 10178 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10179 | return FALSE; | |
| 10180 | } | |
| a7f2871e | 10181 | |
| 5bd4f169 AM |
10182 | if (relocs) |
| 10183 | { | |
| dc810e39 AM |
10184 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10185 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10186 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10187 | return FALSE; |
| 5bd4f169 | 10188 | |
| 65f38f15 AM |
10189 | /* If any dynamic relocs apply to a read-only section, |
| 10190 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10191 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10192 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10193 | |
| 65f38f15 | 10194 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10195 | { |
| 65f38f15 | 10196 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10197 | return FALSE; |
| 5bd4f169 | 10198 | } |
| 5bd4f169 | 10199 | } |
| 5bd4f169 | 10200 | } |
| 65f38f15 | 10201 | #undef add_dynamic_entry |
| 5bd4f169 | 10202 | |
| b34976b6 | 10203 | return TRUE; |
| 5bd4f169 AM |
10204 | } |
| 10205 | ||
| a345bc8d AM |
10206 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10207 | ||
| 10208 | static bfd_boolean | |
| 10209 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10210 | { | |
| 10211 | if (h->plt.plist != NULL | |
| 10212 | && !h->def_regular | |
| 10213 | && !h->pointer_equality_needed) | |
| 10214 | return FALSE; | |
| 10215 | ||
| 10216 | return _bfd_elf_hash_symbol (h); | |
| 10217 | } | |
| 10218 | ||
| 721956f4 | 10219 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10220 | |
| 4ce794b7 AM |
10221 | static inline enum ppc_stub_type |
| 10222 | ppc_type_of_stub (asection *input_sec, | |
| 10223 | const Elf_Internal_Rela *rel, | |
| 10224 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10225 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10226 | bfd_vma destination, |
| 10227 | unsigned long local_off) | |
| 5bd4f169 | 10228 | { |
| 721956f4 AM |
10229 | struct ppc_link_hash_entry *h = *hash; |
| 10230 | bfd_vma location; | |
| 10231 | bfd_vma branch_offset; | |
| 10232 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10233 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10234 | |
| 721956f4 AM |
10235 | if (h != NULL) |
| 10236 | { | |
| e054468f | 10237 | struct plt_entry *ent; |
| 7fe2b9a6 | 10238 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10239 | if (h->oh != NULL |
| 10240 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10241 | { |
| 10242 | fdh = ppc_follow_link (h->oh); | |
| 10243 | *hash = fdh; | |
| 10244 | } | |
| 8387904d | 10245 | |
| e054468f AM |
10246 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10247 | if (ent->addend == rel->r_addend | |
| 10248 | && ent->plt.offset != (bfd_vma) -1) | |
| 10249 | { | |
| e054468f AM |
10250 | *plt_ent = ent; |
| 10251 | return ppc_stub_plt_call; | |
| 10252 | } | |
| 5bd4f169 | 10253 | |
| 7fe2b9a6 AM |
10254 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10255 | either a defined function descriptor or a defined entry symbol | |
| 10256 | in a regular object file, then it is pointless trying to make | |
| 10257 | any other type of stub. */ | |
| 854b41e7 AM |
10258 | if (!is_static_defined (&fdh->elf) |
| 10259 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10260 | return ppc_stub_none; |
| 5d1634d7 | 10261 | } |
| e054468f AM |
10262 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10263 | { | |
| 10264 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10265 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10266 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10267 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10268 | ||
| 10269 | if (local_plt[r_symndx] != NULL) | |
| 10270 | { | |
| 10271 | struct plt_entry *ent; | |
| 10272 | ||
| 10273 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10274 | if (ent->addend == rel->r_addend | |
| 10275 | && ent->plt.offset != (bfd_vma) -1) | |
| 10276 | { | |
| 10277 | *plt_ent = ent; | |
| 10278 | return ppc_stub_plt_call; | |
| 10279 | } | |
| 10280 | } | |
| 10281 | } | |
| 5d1634d7 | 10282 | |
| 721956f4 AM |
10283 | /* Determine where the call point is. */ |
| 10284 | location = (input_sec->output_offset | |
| 10285 | + input_sec->output_section->vma | |
| 10286 | + rel->r_offset); | |
| 5d1634d7 | 10287 | |
| 721956f4 AM |
10288 | branch_offset = destination - location; |
| 10289 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10290 | |
| 721956f4 AM |
10291 | /* Determine if a long branch stub is needed. */ |
| 10292 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10293 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10294 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10295 | |
| 6911b7dc | 10296 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10297 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10298 | is needed later. */ | |
| 10299 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10300 | |
| 721956f4 | 10301 | return ppc_stub_none; |
| 5d1634d7 AM |
10302 | } |
| 10303 | ||
| 794e51c0 AM |
10304 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10305 | to update a plt entry in one thread and have another thread see a | |
| 10306 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10307 | barrier in the call stub. One solution is to make the load of the | |
| 10308 | toc word seem to appear to depend on the load of the function entry | |
| 10309 | word. Another solution is to test for r2 being zero, and branch to | |
| 10310 | the appropriate glink entry if so. | |
| 10311 | ||
| 10312 | . fake dep barrier compare | |
| 71a39c98 AM |
10313 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10314 | . mtctr 12 mtctr 12 | |
| 10315 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10316 | . add 2,2,11 cmpldi 2,0 |
| 10317 | . ld 2,xxx+8(2) bnectr+ | |
| 10318 | . bctr b <glink_entry> | |
| 10319 | ||
| 10320 | The solution involving the compare turns out to be faster, so | |
| 10321 | that's what we use unless the branch won't reach. */ | |
| 10322 | ||
| 10323 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10324 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10325 | |
| 5d1634d7 AM |
10326 | #define PPC_LO(v) ((v) & 0xffff) |
| 10327 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10328 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10329 | ||
| 794e51c0 AM |
10330 | static inline unsigned int |
| 10331 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10332 | struct ppc_stub_hash_entry *stub_entry, | |
| 10333 | bfd_vma off) | |
| 10334 | { | |
| b9e5796b AM |
10335 | unsigned size = 12; |
| 10336 | ||
| 10337 | if (ALWAYS_EMIT_R2SAVE | |
| 10338 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10339 | size += 4; | |
| 10340 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10341 | size += 4; |
| b9e5796b AM |
10342 | if (htab->opd_abi) |
| 10343 | { | |
| 10344 | size += 4; | |
| e7d1c40c | 10345 | if (htab->params->plt_static_chain) |
| b9e5796b | 10346 | size += 4; |
| bd4d2eaa AM |
10347 | if (htab->params->plt_thread_safe |
| 10348 | && htab->elf.dynamic_sections_created | |
| 10349 | && stub_entry->h != NULL | |
| 10350 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10351 | size += 8; |
| e7d1c40c | 10352 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10353 | size += 4; |
| 10354 | } | |
| 794e51c0 AM |
10355 | if (stub_entry->h != NULL |
| 10356 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10357 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10358 | && htab->params->tls_get_addr_opt) |
| 794e51c0 AM |
10359 | size += 13 * 4; |
| 10360 | return size; | |
| 10361 | } | |
| 10362 | ||
| 10363 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10364 | then return the padding needed to do so. */ | |
| 10365 | static inline unsigned int | |
| 10366 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10367 | struct ppc_stub_hash_entry *stub_entry, | |
| 10368 | bfd_vma plt_off) | |
| 10369 | { | |
| e7d1c40c | 10370 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10371 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10372 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10373 | |
| 10374 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10375 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10376 | return stub_align - (stub_off & (stub_align - 1)); |
| 10377 | return 0; | |
| 10378 | } | |
| 10379 | ||
| 10380 | /* Build a .plt call stub. */ | |
| 10381 | ||
| 10382 | static inline bfd_byte * | |
| 10383 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10384 | struct ppc_stub_hash_entry *stub_entry, | |
| 10385 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10386 | { | |
| e7d1c40c | 10387 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10388 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10389 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10390 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10391 | && htab->elf.dynamic_sections_created | |
| 10392 | && stub_entry->h != NULL | |
| 10393 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10394 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10395 | bfd_vma cmp_branch_off = 0; | |
| 10396 | ||
| 10397 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10398 | && plt_load_toc |
| 794e51c0 | 10399 | && plt_thread_safe |
| bd4d2eaa AM |
10400 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10401 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10402 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10403 | { |
| 10404 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10405 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10406 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10407 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10408 | bfd_vma to, from; | |
| 10409 | ||
| 68d62958 AM |
10410 | if (pltindex > 32768) |
| 10411 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10412 | to = (glinkoff |
| 10413 | + htab->glink->output_offset | |
| 10414 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10415 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10416 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10417 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10418 | + 4 * (PPC_HA (offset) != 0) | |
| 10419 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10420 | != PPC_HA (offset)) | |
| 10421 | + 4 * (plt_static_chain != 0) | |
| 10422 | + 20 | |
| 6f20ed8a AM |
10423 | + stub_entry->group->stub_sec->output_offset |
| 10424 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10425 | cmp_branch_off = to - from; |
| 10426 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10427 | } | |
| 10428 | ||
| ac2df442 AM |
10429 | if (PPC_HA (offset) != 0) |
| 10430 | { | |
| 176a0d42 AM |
10431 | if (r != NULL) |
| 10432 | { | |
| 794e51c0 AM |
10433 | if (ALWAYS_EMIT_R2SAVE |
| 10434 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10435 | r[0].r_offset += 4; | |
| 176a0d42 | 10436 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10437 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10438 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10439 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10440 | if (plt_load_toc) |
| 176a0d42 | 10441 | { |
| b9e5796b | 10442 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10443 | { |
| b9e5796b AM |
10444 | r[2].r_offset = r[1].r_offset + 4; |
| 10445 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10446 | r[2].r_addend = r[0].r_addend; | |
| 10447 | } | |
| 10448 | else | |
| 10449 | { | |
| 10450 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10451 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10452 | r[2].r_addend = r[0].r_addend + 8; | |
| 10453 | if (plt_static_chain) | |
| 10454 | { | |
| 10455 | r[3].r_offset = r[2].r_offset + 4; | |
| 10456 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10457 | r[3].r_addend = r[0].r_addend + 16; | |
| 10458 | } | |
| c7131b65 | 10459 | } |
| 176a0d42 AM |
10460 | } |
| 10461 | } | |
| 794e51c0 AM |
10462 | if (ALWAYS_EMIT_R2SAVE |
| 10463 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10464 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10465 | if (plt_load_toc) |
| 10466 | { | |
| 10467 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10468 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10469 | } | |
| 10470 | else | |
| 10471 | { | |
| 10472 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10473 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10474 | } | |
| b9e5796b AM |
10475 | if (plt_load_toc |
| 10476 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10477 | { |
| 71a39c98 | 10478 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10479 | offset = 0; |
| 10480 | } | |
| 71a39c98 | 10481 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10482 | if (plt_load_toc) |
| 794e51c0 | 10483 | { |
| b9e5796b AM |
10484 | if (use_fake_dep) |
| 10485 | { | |
| 10486 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10487 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10488 | } | |
| 10489 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10490 | if (plt_static_chain) | |
| 10491 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10492 | } |
| ac2df442 AM |
10493 | } |
| 10494 | else | |
| 10495 | { | |
| 176a0d42 AM |
10496 | if (r != NULL) |
| 10497 | { | |
| 794e51c0 AM |
10498 | if (ALWAYS_EMIT_R2SAVE |
| 10499 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10500 | r[0].r_offset += 4; | |
| 176a0d42 | 10501 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10502 | if (plt_load_toc) |
| 176a0d42 | 10503 | { |
| b9e5796b | 10504 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10505 | { |
| b9e5796b AM |
10506 | r[1].r_offset = r[0].r_offset + 4; |
| 10507 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10508 | r[1].r_addend = r[0].r_addend; | |
| 10509 | } | |
| 10510 | else | |
| 10511 | { | |
| 10512 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10513 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10514 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10515 | if (plt_static_chain) | |
| 10516 | { | |
| 10517 | r[2].r_offset = r[1].r_offset + 4; | |
| 10518 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10519 | r[2].r_addend = r[0].r_addend + 8; | |
| 10520 | } | |
| c7131b65 | 10521 | } |
| 176a0d42 AM |
10522 | } |
| 10523 | } | |
| 794e51c0 AM |
10524 | if (ALWAYS_EMIT_R2SAVE |
| 10525 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10526 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10527 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10528 | if (plt_load_toc |
| 10529 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10530 | { |
| 10531 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10532 | offset = 0; | |
| 10533 | } | |
| 71a39c98 | 10534 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10535 | if (plt_load_toc) |
| 794e51c0 | 10536 | { |
| b9e5796b AM |
10537 | if (use_fake_dep) |
| 10538 | { | |
| 10539 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10540 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10541 | } | |
| 10542 | if (plt_static_chain) | |
| 10543 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10544 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10545 | } |
| ac2df442 | 10546 | } |
| b9e5796b | 10547 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10548 | { |
| 10549 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10550 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10551 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10552 | } |
| 10553 | else | |
| 10554 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10555 | return p; |
| 10556 | } | |
| 10557 | ||
| a7f2871e AM |
10558 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10559 | ||
| 10560 | #define LD_R11_0R3 0xe9630000 | |
| 10561 | #define LD_R12_0R3 0xe9830000 | |
| 10562 | #define MR_R0_R3 0x7c601b78 | |
| 10563 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10564 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10565 | #define BEQLR 0x4d820020 | |
| 10566 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10567 | #define STD_R11_0R1 0xf9610000 |
| 10568 | #define BCTRL 0x4e800421 | |
| 10569 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10570 | #define MTLR_R11 0x7d6803a6 |
| 10571 | ||
| 10572 | static inline bfd_byte * | |
| 794e51c0 AM |
10573 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10574 | struct ppc_stub_hash_entry *stub_entry, | |
| 10575 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10576 | { |
| e7d1c40c | 10577 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10578 | |
| a7f2871e AM |
10579 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10580 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10581 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10582 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10583 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10584 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10585 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10586 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10587 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10588 | |
| 10589 | if (r != NULL) | |
| 10590 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10591 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10592 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10593 | ||
| a078d95a | 10594 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10595 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10596 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10597 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10598 | ||
| 10599 | return p; | |
| 10600 | } | |
| 10601 | ||
| 176a0d42 AM |
10602 | static Elf_Internal_Rela * |
| 10603 | get_relocs (asection *sec, int count) | |
| 10604 | { | |
| 10605 | Elf_Internal_Rela *relocs; | |
| 10606 | struct bfd_elf_section_data *elfsec_data; | |
| 10607 | ||
| 10608 | elfsec_data = elf_section_data (sec); | |
| 10609 | relocs = elfsec_data->relocs; | |
| 10610 | if (relocs == NULL) | |
| 10611 | { | |
| 10612 | bfd_size_type relsize; | |
| 10613 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10614 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10615 | if (relocs == NULL) | |
| 10616 | return NULL; | |
| 10617 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10618 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10619 | sizeof (Elf_Internal_Shdr)); | |
| 10620 | if (elfsec_data->rela.hdr == NULL) | |
| 10621 | return NULL; | |
| 10622 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10623 | * sizeof (Elf64_External_Rela)); | |
| 10624 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10625 | sec->reloc_count = 0; |
| 10626 | } | |
| 10627 | relocs += sec->reloc_count; | |
| 10628 | sec->reloc_count += count; | |
| 10629 | return relocs; | |
| 10630 | } | |
| 10631 | ||
| aa374f67 | 10632 | static bfd_vma |
| 25f53a85 | 10633 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10634 | struct ppc_stub_hash_entry *stub_entry) |
| 10635 | { | |
| 25f53a85 | 10636 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10637 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10638 | |
| 10639 | if (r2off == 0) | |
| 10640 | { | |
| 10641 | /* Support linking -R objects. Get the toc pointer from the | |
| 10642 | opd entry. */ | |
| 10643 | char buf[8]; | |
| b9e5796b AM |
10644 | if (!htab->opd_abi) |
| 10645 | return r2off; | |
| aa374f67 AM |
10646 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10647 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10648 | ||
| 10649 | if (strcmp (opd->name, ".opd") != 0 | |
| 10650 | || opd->reloc_count != 0) | |
| 10651 | { | |
| bc30df16 | 10652 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10653 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10654 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10655 | return (bfd_vma) -1; |
| aa374f67 AM |
10656 | } |
| 10657 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10658 | return (bfd_vma) -1; |
| aa374f67 | 10659 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10660 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10661 | } |
| 6f20ed8a | 10662 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10663 | return r2off; |
| 10664 | } | |
| 10665 | ||
| b34976b6 | 10666 | static bfd_boolean |
| 4ce794b7 | 10667 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10668 | { |
| 721956f4 AM |
10669 | struct ppc_stub_hash_entry *stub_entry; |
| 10670 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10671 | struct bfd_link_info *info; |
| 10672 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10673 | bfd_byte *loc; |
| 10674 | bfd_byte *p; | |
| ee75fd95 | 10675 | bfd_vma dest, off; |
| 721956f4 | 10676 | int size; |
| 176a0d42 | 10677 | Elf_Internal_Rela *r; |
| e054468f | 10678 | asection *plt; |
| 5d1634d7 | 10679 | |
| 721956f4 AM |
10680 | /* Massage our args to the form they really have. */ |
| 10681 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10682 | info = in_arg; |
| 5d1634d7 | 10683 | |
| 5d1634d7 | 10684 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10685 | if (htab == NULL) |
| 10686 | return FALSE; | |
| 5d1634d7 | 10687 | |
| 721956f4 | 10688 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10689 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10690 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10691 | |
| 4ce794b7 | 10692 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10693 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10694 | { |
| 721956f4 | 10695 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10696 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10697 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10698 | dest = (stub_entry->target_value |
| 10699 | + stub_entry->target_section->output_offset | |
| 10700 | + stub_entry->target_section->output_section->vma); | |
| 10701 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10702 | off = dest; | |
| 5d1634d7 | 10703 | |
| 721956f4 AM |
10704 | /* And this is where we are coming from. */ |
| 10705 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10706 | + stub_entry->group->stub_sec->output_offset |
| 10707 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10708 | |
| ac2df442 AM |
10709 | size = 4; |
| 10710 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10711 | { |
| 25f53a85 | 10712 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10713 | |
| a7c49797 | 10714 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10715 | { |
| 10716 | htab->stub_error = TRUE; | |
| 10717 | return FALSE; | |
| 10718 | } | |
| e7d1c40c | 10719 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10720 | loc += 4; |
| a7c49797 | 10721 | size = 8; |
| ac2df442 AM |
10722 | if (PPC_HA (r2off) != 0) |
| 10723 | { | |
| e7d1c40c AM |
10724 | bfd_put_32 (htab->params->stub_bfd, |
| 10725 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10726 | loc += 4; |
| a7c49797 AM |
10727 | size += 4; |
| 10728 | } | |
| 10729 | if (PPC_LO (r2off) != 0) | |
| 10730 | { | |
| 10731 | bfd_put_32 (htab->params->stub_bfd, | |
| 10732 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10733 | loc += 4; | |
| 10734 | size += 4; | |
| ac2df442 | 10735 | } |
| ac2df442 | 10736 | off -= size - 4; |
| ad8e1ba5 | 10737 | } |
| e7d1c40c | 10738 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10739 | |
| 5c3dead3 AM |
10740 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10741 | { | |
| bc30df16 AM |
10742 | info->callbacks->einfo |
| 10743 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10744 | stub_entry->root.string); | |
| 5c3dead3 AM |
10745 | htab->stub_error = TRUE; |
| 10746 | return FALSE; | |
| 10747 | } | |
| ee75fd95 AM |
10748 | |
| 10749 | if (info->emitrelocations) | |
| 10750 | { | |
| 6f20ed8a | 10751 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10752 | if (r == NULL) |
| 10753 | return FALSE; | |
| 6f20ed8a | 10754 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10755 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10756 | r->r_addend = dest; | |
| 10757 | if (stub_entry->h != NULL) | |
| 10758 | { | |
| 10759 | struct elf_link_hash_entry **hashes; | |
| 10760 | unsigned long symndx; | |
| 10761 | struct ppc_link_hash_entry *h; | |
| 10762 | ||
| e7d1c40c | 10763 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10764 | if (hashes == NULL) |
| 10765 | { | |
| 10766 | bfd_size_type hsize; | |
| 10767 | ||
| 10768 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10769 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10770 | if (hashes == NULL) |
| 10771 | return FALSE; | |
| e7d1c40c | 10772 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10773 | htab->stub_globals = 1; |
| 10774 | } | |
| 10775 | symndx = htab->stub_globals++; | |
| 10776 | h = stub_entry->h; | |
| 10777 | hashes[symndx] = &h->elf; | |
| 10778 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10779 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10780 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10781 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10782 | /* H is an opd symbol. The addend must be zero. */ | |
| 10783 | r->r_addend = 0; | |
| 10784 | else | |
| 10785 | { | |
| 10786 | off = (h->elf.root.u.def.value | |
| 10787 | + h->elf.root.u.def.section->output_offset | |
| 10788 | + h->elf.root.u.def.section->output_section->vma); | |
| 10789 | r->r_addend -= off; | |
| 10790 | } | |
| 10791 | } | |
| 10792 | } | |
| 721956f4 | 10793 | break; |
| e86ce104 | 10794 | |
| 721956f4 | 10795 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10796 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10797 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10798 | stub_entry->root.string + 9, | |
| b34976b6 | 10799 | FALSE, FALSE); |
| 721956f4 AM |
10800 | if (br_entry == NULL) |
| 10801 | { | |
| 8de848d8 | 10802 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10803 | stub_entry->root.string); |
| b34976b6 AM |
10804 | htab->stub_error = TRUE; |
| 10805 | return FALSE; | |
| 721956f4 AM |
10806 | } |
| 10807 | ||
| 176a0d42 AM |
10808 | dest = (stub_entry->target_value |
| 10809 | + stub_entry->target_section->output_offset | |
| 10810 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10811 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10812 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10813 | |
| 176a0d42 | 10814 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10815 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10816 | |
| f94498ff | 10817 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10818 | { |
| f94498ff | 10819 | br_entry->iter = 0; |
| 84f5d08e | 10820 | |
| f94498ff | 10821 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10822 | { |
| f94498ff AM |
10823 | /* Create a reloc for the branch lookup table entry. */ |
| 10824 | Elf_Internal_Rela rela; | |
| 10825 | bfd_byte *rl; | |
| 10826 | ||
| 10827 | rela.r_offset = (br_entry->offset | |
| 10828 | + htab->brlt->output_offset | |
| 10829 | + htab->brlt->output_section->vma); | |
| 10830 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10831 | rela.r_addend = dest; |
| f94498ff AM |
10832 | |
| 10833 | rl = htab->relbrlt->contents; | |
| 10834 | rl += (htab->relbrlt->reloc_count++ | |
| 10835 | * sizeof (Elf64_External_Rela)); | |
| 10836 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10837 | } | |
| 10838 | else if (info->emitrelocations) | |
| 10839 | { | |
| 176a0d42 AM |
10840 | r = get_relocs (htab->brlt, 1); |
| 10841 | if (r == NULL) | |
| 10842 | return FALSE; | |
| 10843 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10844 | normal reloc processing. Symbols and offsets are not | |
| 10845 | translated from input file to output file form, so | |
| 10846 | set up the offset per the output file. */ | |
| f94498ff AM |
10847 | r->r_offset = (br_entry->offset |
| 10848 | + htab->brlt->output_offset | |
| 10849 | + htab->brlt->output_section->vma); | |
| 10850 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10851 | r->r_addend = dest; |
| 84f5d08e | 10852 | } |
| 84f5d08e | 10853 | } |
| 721956f4 | 10854 | |
| 176a0d42 AM |
10855 | dest = (br_entry->offset |
| 10856 | + htab->brlt->output_offset | |
| 10857 | + htab->brlt->output_section->vma); | |
| 10858 | ||
| 10859 | off = (dest | |
| 4ce794b7 | 10860 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 10861 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 10862 | |
| ad8e1ba5 | 10863 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10864 | { |
| 25f53a85 | 10865 | info->callbacks->einfo |
| bc30df16 | 10866 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10867 | stub_entry->root.string); |
| 5d1634d7 | 10868 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10869 | htab->stub_error = TRUE; |
| 10870 | return FALSE; | |
| 5d1634d7 | 10871 | } |
| 41bd81ab | 10872 | |
| 176a0d42 AM |
10873 | if (info->emitrelocations) |
| 10874 | { | |
| 6f20ed8a | 10875 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
10876 | if (r == NULL) |
| 10877 | return FALSE; | |
| 6f20ed8a | 10878 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
10879 | if (bfd_big_endian (info->output_bfd)) |
| 10880 | r[0].r_offset += 2; | |
| 00f412ee | 10881 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
10882 | r[0].r_offset += 4; |
| 10883 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10884 | r[0].r_addend = dest; | |
| 10885 | if (PPC_HA (off) != 0) | |
| 10886 | { | |
| 10887 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10888 | r[1].r_offset = r[0].r_offset + 4; | |
| 10889 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10890 | r[1].r_addend = r[0].r_addend; | |
| 10891 | } | |
| 10892 | } | |
| 10893 | ||
| 00f412ee | 10894 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 10895 | { |
| 176a0d42 | 10896 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10897 | { |
| 10898 | size = 16; | |
| e7d1c40c | 10899 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10900 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10901 | loc += 4; |
| e7d1c40c | 10902 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10903 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10904 | } |
| 10905 | else | |
| 10906 | { | |
| 10907 | size = 12; | |
| e7d1c40c AM |
10908 | bfd_put_32 (htab->params->stub_bfd, |
| 10909 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 10910 | } |
| ad8e1ba5 AM |
10911 | } |
| 10912 | else | |
| 10913 | { | |
| 25f53a85 | 10914 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 10915 | |
| a7c49797 | 10916 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10917 | { |
| 10918 | htab->stub_error = TRUE; | |
| 10919 | return FALSE; | |
| 10920 | } | |
| ad8e1ba5 | 10921 | |
| e7d1c40c | 10922 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10923 | loc += 4; |
| 00f412ee | 10924 | size = 16; |
| 176a0d42 | 10925 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10926 | { |
| 10927 | size += 4; | |
| e7d1c40c | 10928 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10929 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10930 | loc += 4; |
| e7d1c40c | 10931 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10932 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10933 | } |
| 10934 | else | |
| e7d1c40c | 10935 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10936 | |
| 10937 | if (PPC_HA (r2off) != 0) | |
| 10938 | { | |
| 10939 | size += 4; | |
| 00f412ee | 10940 | loc += 4; |
| e7d1c40c AM |
10941 | bfd_put_32 (htab->params->stub_bfd, |
| 10942 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
10943 | } |
| 10944 | if (PPC_LO (r2off) != 0) | |
| 10945 | { | |
| 10946 | size += 4; | |
| ac2df442 | 10947 | loc += 4; |
| e7d1c40c AM |
10948 | bfd_put_32 (htab->params->stub_bfd, |
| 10949 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 10950 | } |
| ad8e1ba5 AM |
10951 | } |
| 10952 | loc += 4; | |
| e7d1c40c | 10953 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10954 | loc += 4; |
| e7d1c40c | 10955 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 10956 | break; |
| 5d1634d7 | 10957 | |
| 721956f4 | 10958 | case ppc_stub_plt_call: |
| 794e51c0 | 10959 | case ppc_stub_plt_call_r2save: |
| e054468f | 10960 | if (stub_entry->h != NULL |
| b31867b6 AM |
10961 | && stub_entry->h->is_func_descriptor |
| 10962 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10963 | { |
| b31867b6 AM |
10964 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10965 | ||
| 10966 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 10967 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| b31867b6 AM |
10968 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 10969 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10970 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10971 | fh->was_undefined = 0; | |
| c862ae31 AM |
10972 | } |
| 10973 | ||
| 721956f4 | 10974 | /* Now build the stub. */ |
| e054468f | 10975 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10976 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10977 | abort (); |
| 10978 | ||
| 33e44f2e | 10979 | plt = htab->elf.splt; |
| 25f23106 AM |
10980 | if (!htab->elf.dynamic_sections_created |
| 10981 | || stub_entry->h == NULL | |
| 10982 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 10983 | plt = htab->elf.iplt; |
| e054468f AM |
10984 | |
| 10985 | dest += plt->output_offset + plt->output_section->vma; | |
| 10986 | ||
| 10987 | if (stub_entry->h == NULL | |
| 10988 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 10989 | { | |
| 10990 | Elf_Internal_Rela rela; | |
| 10991 | bfd_byte *rl; | |
| 10992 | ||
| 10993 | rela.r_offset = dest; | |
| ee67d69a AM |
10994 | if (htab->opd_abi) |
| 10995 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 10996 | else | |
| 10997 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
10998 | rela.r_addend = (stub_entry->target_value |
| 10999 | + stub_entry->target_section->output_offset | |
| 11000 | + stub_entry->target_section->output_section->vma); | |
| 11001 | ||
| 33e44f2e AM |
11002 | rl = (htab->elf.irelplt->contents |
| 11003 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11004 | * sizeof (Elf64_External_Rela))); |
| 11005 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
11006 | stub_entry->plt_ent->plt.offset |= 1; |
| 11007 | } | |
| 176a0d42 AM |
11008 | |
| 11009 | off = (dest | |
| e054468f | 11010 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11011 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11012 | |
| ad8e1ba5 | 11013 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11014 | { |
| 25f53a85 | 11015 | info->callbacks->einfo |
| bc30df16 | 11016 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11017 | stub_entry->h != NULL |
| 11018 | ? stub_entry->h->elf.root.root.string | |
| 11019 | : "<local sym>"); | |
| 721956f4 | 11020 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11021 | htab->stub_error = TRUE; |
| 11022 | return FALSE; | |
| 721956f4 AM |
11023 | } |
| 11024 | ||
| e7d1c40c | 11025 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11026 | { |
| 11027 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11028 | ||
| 6f20ed8a AM |
11029 | stub_entry->group->stub_sec->size += pad; |
| 11030 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11031 | loc += pad; |
| 11032 | } | |
| 11033 | ||
| 176a0d42 AM |
11034 | r = NULL; |
| 11035 | if (info->emitrelocations) | |
| 11036 | { | |
| 6f20ed8a | 11037 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11038 | ((PPC_HA (off) != 0) |
| 11039 | + (htab->opd_abi | |
| e7d1c40c | 11040 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11041 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11042 | : 1))); | |
| 176a0d42 AM |
11043 | if (r == NULL) |
| 11044 | return FALSE; | |
| 6f20ed8a | 11045 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11046 | if (bfd_big_endian (info->output_bfd)) |
| 11047 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11048 | r[0].r_addend = dest; |
| 11049 | } | |
| a7f2871e AM |
11050 | if (stub_entry->h != NULL |
| 11051 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11052 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11053 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11054 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11055 | else |
| 794e51c0 | 11056 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11057 | size = p - loc; |
| 11058 | break; | |
| 11059 | ||
| a4b6fadd AM |
11060 | case ppc_stub_save_res: |
| 11061 | return TRUE; | |
| 11062 | ||
| 721956f4 AM |
11063 | default: |
| 11064 | BFD_FAIL (); | |
| b34976b6 | 11065 | return FALSE; |
| 721956f4 AM |
11066 | } |
| 11067 | ||
| 6f20ed8a | 11068 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11069 | |
| e7d1c40c | 11070 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11071 | { |
| 11072 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11073 | size_t len1, len2; |
| 11074 | char *name; | |
| 11075 | const char *const stub_str[] = { "long_branch", | |
| 11076 | "long_branch_r2off", | |
| 11077 | "plt_branch", | |
| 11078 | "plt_branch_r2off", | |
| 794e51c0 | 11079 | "plt_call", |
| ee75fd95 AM |
11080 | "plt_call" }; |
| 11081 | ||
| 11082 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11083 | len2 = strlen (stub_entry->root.string); | |
| 11084 | name = bfd_malloc (len1 + len2 + 2); | |
| 11085 | if (name == NULL) | |
| 11086 | return FALSE; | |
| 11087 | memcpy (name, stub_entry->root.string, 9); | |
| 11088 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11089 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11090 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11091 | if (h == NULL) |
| 11092 | return FALSE; | |
| 11093 | if (h->root.type == bfd_link_hash_new) | |
| 11094 | { | |
| 11095 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11096 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11097 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11098 | h->ref_regular = 1; |
| 11099 | h->def_regular = 1; | |
| 11100 | h->ref_regular_nonweak = 1; | |
| 11101 | h->forced_local = 1; | |
| 11102 | h->non_elf = 0; | |
| 2ec55de3 | 11103 | h->root.linker_def = 1; |
| 97b639ba AM |
11104 | } |
| 11105 | } | |
| 11106 | ||
| b34976b6 | 11107 | return TRUE; |
| 721956f4 AM |
11108 | } |
| 11109 | ||
| 11110 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11111 | we know stub section sizes, and select plt_branch stubs where | |
| 11112 | long_branch stubs won't do. */ | |
| 11113 | ||
| b34976b6 | 11114 | static bfd_boolean |
| 4ce794b7 | 11115 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11116 | { |
| 11117 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11118 | struct bfd_link_info *info; |
| 721956f4 AM |
11119 | struct ppc_link_hash_table *htab; |
| 11120 | bfd_vma off; | |
| 11121 | int size; | |
| 11122 | ||
| 11123 | /* Massage our args to the form they really have. */ | |
| 11124 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11125 | info = in_arg; |
| 11126 | ||
| 11127 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11128 | if (htab == NULL) |
| 11129 | return FALSE; | |
| 721956f4 | 11130 | |
| a4b6fadd AM |
11131 | if (stub_entry->h != NULL |
| 11132 | && stub_entry->h->save_res | |
| 11133 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11134 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11135 | { | |
| 11136 | /* Don't make stubs to out-of-line register save/restore | |
| 11137 | functions. Instead, emit copies of the functions. */ | |
| 11138 | stub_entry->group->needs_save_res = 1; | |
| 11139 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11140 | return TRUE; | |
| 11141 | } | |
| 11142 | ||
| 794e51c0 AM |
11143 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11144 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11145 | { |
| e054468f AM |
11146 | asection *plt; |
| 11147 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11148 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11149 | abort (); |
| 33e44f2e | 11150 | plt = htab->elf.splt; |
| 25f23106 AM |
11151 | if (!htab->elf.dynamic_sections_created |
| 11152 | || stub_entry->h == NULL | |
| 11153 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11154 | plt = htab->elf.iplt; |
| e054468f AM |
11155 | off += (plt->output_offset |
| 11156 | + plt->output_section->vma | |
| 11157 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11158 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11159 | |
| 794e51c0 | 11160 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11161 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11162 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11163 | if (info->emitrelocations) |
| 11164 | { | |
| 6f20ed8a | 11165 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11166 | += ((PPC_HA (off) != 0) |
| 11167 | + (htab->opd_abi | |
| e7d1c40c | 11168 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11169 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11170 | : 1)); | |
| 6f20ed8a | 11171 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11172 | } |
| 721956f4 AM |
11173 | } |
| 11174 | else | |
| 11175 | { | |
| ad8e1ba5 AM |
11176 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11177 | variants. */ | |
| ac2df442 | 11178 | bfd_vma r2off = 0; |
| 6911b7dc | 11179 | bfd_vma local_off = 0; |
| ac2df442 | 11180 | |
| 721956f4 AM |
11181 | off = (stub_entry->target_value |
| 11182 | + stub_entry->target_section->output_offset | |
| 11183 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11184 | off -= (stub_entry->group->stub_sec->size |
| 11185 | + stub_entry->group->stub_sec->output_offset | |
| 11186 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11187 | |
| ad8e1ba5 AM |
11188 | /* Reset the stub type from the plt variant in case we now |
| 11189 | can reach with a shorter stub. */ | |
| 11190 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11191 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11192 | ||
| 11193 | size = 4; | |
| 11194 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11195 | { | |
| 25f53a85 | 11196 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11197 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11198 | { |
| 11199 | htab->stub_error = TRUE; | |
| 11200 | return FALSE; | |
| 11201 | } | |
| a7c49797 | 11202 | size = 8; |
| ac2df442 | 11203 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11204 | size += 4; |
| 11205 | if (PPC_LO (r2off) != 0) | |
| 11206 | size += 4; | |
| ac2df442 | 11207 | off -= size - 4; |
| ad8e1ba5 AM |
11208 | } |
| 11209 | ||
| 6911b7dc AM |
11210 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11211 | ||
| b9e5796b AM |
11212 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11213 | Do the same for -R objects without function descriptors. */ | |
| 11214 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11215 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11216 | && r2off == 0 |
| 11217 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11218 | { |
| 11219 | struct ppc_branch_hash_entry *br_entry; | |
| 11220 | ||
| 11221 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11222 | stub_entry->root.string + 9, | |
| b34976b6 | 11223 | TRUE, FALSE); |
| 721956f4 AM |
11224 | if (br_entry == NULL) |
| 11225 | { | |
| 8de848d8 | 11226 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11227 | stub_entry->root.string); |
| b34976b6 AM |
11228 | htab->stub_error = TRUE; |
| 11229 | return FALSE; | |
| 721956f4 AM |
11230 | } |
| 11231 | ||
| 11232 | if (br_entry->iter != htab->stub_iteration) | |
| 11233 | { | |
| 11234 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11235 | br_entry->offset = htab->brlt->size; |
| 11236 | htab->brlt->size += 8; | |
| 63bc6f6c | 11237 | |
| ee75fd95 | 11238 | if (htab->relbrlt != NULL) |
| eea6121a | 11239 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11240 | else if (info->emitrelocations) |
| 11241 | { | |
| 11242 | htab->brlt->reloc_count += 1; | |
| 11243 | htab->brlt->flags |= SEC_RELOC; | |
| 11244 | } | |
| 721956f4 | 11245 | } |
| ad8e1ba5 AM |
11246 | |
| 11247 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11248 | off = (br_entry->offset |
| 11249 | + htab->brlt->output_offset | |
| 11250 | + htab->brlt->output_section->vma | |
| 11251 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11252 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11253 | |
| 176a0d42 AM |
11254 | if (info->emitrelocations) |
| 11255 | { | |
| 6f20ed8a AM |
11256 | stub_entry->group->stub_sec->reloc_count |
| 11257 | += 1 + (PPC_HA (off) != 0); | |
| 11258 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11259 | } |
| 11260 | ||
| 00f412ee | 11261 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11262 | { |
| 11263 | size = 12; | |
| 176a0d42 | 11264 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11265 | size = 16; |
| 11266 | } | |
| 11267 | else | |
| 11268 | { | |
| 00f412ee | 11269 | size = 16; |
| 176a0d42 | 11270 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11271 | size += 4; |
| 11272 | ||
| 11273 | if (PPC_HA (r2off) != 0) | |
| 11274 | size += 4; | |
| 00f412ee AM |
11275 | if (PPC_LO (r2off) != 0) |
| 11276 | size += 4; | |
| ac2df442 | 11277 | } |
| 721956f4 | 11278 | } |
| 84f5d08e AM |
11279 | else if (info->emitrelocations) |
| 11280 | { | |
| 6f20ed8a AM |
11281 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11282 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11283 | } |
| 721956f4 AM |
11284 | } |
| 11285 | ||
| 6f20ed8a | 11286 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11287 | return TRUE; |
| 721956f4 AM |
11288 | } |
| 11289 | ||
| 11290 | /* Set up various things so that we can make a list of input sections | |
| 11291 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11292 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11293 | |
| 11294 | int | |
| e7d1c40c | 11295 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11296 | { |
| 6f20ed8a | 11297 | unsigned int id; |
| 721956f4 AM |
11298 | bfd_size_type amt; |
| 11299 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11300 | ||
| 4dfe6ac6 NC |
11301 | if (htab == NULL) |
| 11302 | return -1; | |
| 4c52953f | 11303 | |
| 6f20ed8a AM |
11304 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11305 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11306 | htab->sec_info = bfd_zmalloc (amt); | |
| 11307 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11308 | return -1; |
| 11309 | ||
| 3d6f9012 AM |
11310 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11311 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11312 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11313 | |
| 721956f4 AM |
11314 | return 1; |
| 11315 | } | |
| 11316 | ||
| 927be08e AM |
11317 | /* Set up for first pass at multitoc partitioning. */ |
| 11318 | ||
| 11319 | void | |
| 11320 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11321 | { | |
| 11322 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11323 | ||
| 1c865ab2 | 11324 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11325 | htab->toc_bfd = NULL; |
| 11326 | htab->toc_first_sec = NULL; | |
| 11327 | } | |
| 11328 | ||
| e717da7e AM |
11329 | /* The linker repeatedly calls this function for each TOC input section |
| 11330 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11331 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11332 | |
| 927be08e | 11333 | bfd_boolean |
| 4ce794b7 | 11334 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11335 | { |
| 11336 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11337 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11338 | |
| 4dfe6ac6 NC |
11339 | if (htab == NULL) |
| 11340 | return FALSE; | |
| 11341 | ||
| 927be08e | 11342 | if (!htab->second_toc_pass) |
| 4c52953f | 11343 | { |
| 927be08e | 11344 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11345 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11346 | ||
| 11347 | if (new_bfd) | |
| bf102f86 AM |
11348 | { |
| 11349 | htab->toc_bfd = isec->owner; | |
| 11350 | htab->toc_first_sec = isec; | |
| 11351 | } | |
| 927be08e | 11352 | |
| bf102f86 AM |
11353 | addr = isec->output_offset + isec->output_section->vma; |
| 11354 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11355 | limit = 0x80008000; |
| 11356 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11357 | limit = 0x10000; | |
| 11358 | if (off + isec->size > limit) | |
| bf102f86 AM |
11359 | { |
| 11360 | addr = (htab->toc_first_sec->output_offset | |
| 11361 | + htab->toc_first_sec->output_section->vma); | |
| 11362 | htab->toc_curr = addr; | |
| a27e685f | 11363 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11364 | } |
| 99877b66 | 11365 | |
| 927be08e AM |
11366 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11367 | for the input section to be the offset relative to the | |
| 11368 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11369 | offset allows us to move the toc as a whole without | |
| 11370 | recalculating input elf_gp. */ | |
| 11371 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11372 | off += TOC_BASE_OFF; | |
| 11373 | ||
| 11374 | /* Die if someone uses a linker script that doesn't keep input | |
| 11375 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11376 | if (new_bfd |
| 11377 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11378 | && elf_gp (isec->owner) != off) |
| 11379 | return FALSE; | |
| 11380 | ||
| 11381 | elf_gp (isec->owner) = off; | |
| 11382 | return TRUE; | |
| 4c52953f | 11383 | } |
| 927be08e AM |
11384 | |
| 11385 | /* During the second pass toc_first_sec points to the start of | |
| 11386 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11387 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11388 | if (htab->toc_bfd == isec->owner) | |
| 11389 | return TRUE; | |
| 11390 | htab->toc_bfd = isec->owner; | |
| 11391 | ||
| 11392 | if (htab->toc_first_sec == NULL | |
| 11393 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11394 | { | |
| 11395 | htab->toc_curr = elf_gp (isec->owner); | |
| 11396 | htab->toc_first_sec = isec; | |
| 11397 | } | |
| 11398 | addr = (htab->toc_first_sec->output_offset | |
| 11399 | + htab->toc_first_sec->output_section->vma); | |
| 11400 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11401 | elf_gp (isec->owner) = off; | |
| 11402 | ||
| 11403 | return TRUE; | |
| ad8e1ba5 AM |
11404 | } |
| 11405 | ||
| 927be08e AM |
11406 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11407 | symbol H. */ | |
| 11408 | ||
| 11409 | static bfd_boolean | |
| 11410 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11411 | { | |
| 11412 | if (h->root.type == bfd_link_hash_indirect) | |
| 11413 | return TRUE; | |
| 11414 | ||
| 927be08e AM |
11415 | merge_got_entries (&h->got.glist); |
| 11416 | ||
| 11417 | return TRUE; | |
| 11418 | } | |
| 11419 | ||
| 11420 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11421 | symbol H. */ | |
| 11422 | ||
| 11423 | static bfd_boolean | |
| 11424 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11425 | { | |
| 11426 | struct got_entry *gent; | |
| 11427 | ||
| 11428 | if (h->root.type == bfd_link_hash_indirect) | |
| 11429 | return TRUE; | |
| 11430 | ||
| 927be08e AM |
11431 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11432 | if (!gent->is_indirect) | |
| 11433 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11434 | return TRUE; | |
| 11435 | } | |
| 11436 | ||
| 11437 | /* Called on the first multitoc pass after the last call to | |
| 11438 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11439 | entries. */ | |
| 11440 | ||
| 11441 | bfd_boolean | |
| 11442 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11443 | { |
| 11444 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11445 | struct bfd *ibfd, *ibfd2; |
| 11446 | bfd_boolean done_something; | |
| 11447 | ||
| 11448 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11449 | |
| 7865406b AM |
11450 | if (!htab->do_multi_toc) |
| 11451 | return FALSE; | |
| 11452 | ||
| d0fae19d | 11453 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11454 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11455 | ||
| 11456 | /* And tlsld_got. */ | |
| c72f2fb2 | 11457 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11458 | { |
| 11459 | struct got_entry *ent, *ent2; | |
| 11460 | ||
| 11461 | if (!is_ppc64_elf (ibfd)) | |
| 11462 | continue; | |
| 11463 | ||
| 11464 | ent = ppc64_tlsld_got (ibfd); | |
| 11465 | if (!ent->is_indirect | |
| 11466 | && ent->got.offset != (bfd_vma) -1) | |
| 11467 | { | |
| c72f2fb2 | 11468 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11469 | { |
| 11470 | if (!is_ppc64_elf (ibfd2)) | |
| 11471 | continue; | |
| 11472 | ||
| 11473 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11474 | if (!ent2->is_indirect | |
| 11475 | && ent2->got.offset != (bfd_vma) -1 | |
| 11476 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11477 | { | |
| 11478 | ent2->is_indirect = TRUE; | |
| 11479 | ent2->got.ent = ent; | |
| 11480 | } | |
| 11481 | } | |
| 11482 | } | |
| 11483 | } | |
| 11484 | ||
| 11485 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11486 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11487 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11488 | htab->got_reli_size = 0; |
| 11489 | ||
| c72f2fb2 | 11490 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11491 | { |
| 11492 | asection *got, *relgot; | |
| 11493 | ||
| 11494 | if (!is_ppc64_elf (ibfd)) | |
| 11495 | continue; | |
| 11496 | ||
| 11497 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11498 | if (got != NULL) | |
| 11499 | { | |
| 11500 | got->rawsize = got->size; | |
| 11501 | got->size = 0; | |
| 11502 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11503 | relgot->rawsize = relgot->size; | |
| 11504 | relgot->size = 0; | |
| 11505 | } | |
| 11506 | } | |
| 11507 | ||
| 11508 | /* Now reallocate the got, local syms first. We don't need to | |
| 11509 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11510 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11511 | { |
| 11512 | struct got_entry **lgot_ents; | |
| 11513 | struct got_entry **end_lgot_ents; | |
| 11514 | struct plt_entry **local_plt; | |
| 11515 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11516 | unsigned char *lgot_masks; |
| 927be08e AM |
11517 | bfd_size_type locsymcount; |
| 11518 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11519 | asection *s; |
| 927be08e AM |
11520 | |
| 11521 | if (!is_ppc64_elf (ibfd)) | |
| 11522 | continue; | |
| 11523 | ||
| 11524 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11525 | if (!lgot_ents) | |
| 11526 | continue; | |
| 11527 | ||
| 11528 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11529 | locsymcount = symtab_hdr->sh_info; | |
| 11530 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11531 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11532 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11533 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11534 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11535 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11536 | { | |
| 11537 | struct got_entry *ent; | |
| 11538 | ||
| 11539 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11540 | { |
| 19e08130 AM |
11541 | unsigned int ent_size = 8; |
| 11542 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11543 | ||
| d0fae19d AM |
11544 | ent->got.offset = s->size; |
| 11545 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11546 | { |
| 19e08130 AM |
11547 | ent_size *= 2; |
| 11548 | rel_size *= 2; | |
| 11549 | } | |
| 11550 | s->size += ent_size; | |
| 11551 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11552 | { | |
| 33e44f2e | 11553 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11554 | htab->got_reli_size += rel_size; |
| 11555 | } | |
| 0e1862bb | 11556 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11557 | { |
| 11558 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11559 | srel->size += rel_size; | |
| d0fae19d AM |
11560 | } |
| 11561 | } | |
| 927be08e AM |
11562 | } |
| 11563 | } | |
| 11564 | ||
| 11565 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11566 | ||
| c72f2fb2 | 11567 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11568 | { |
| 11569 | struct got_entry *ent; | |
| 11570 | ||
| 11571 | if (!is_ppc64_elf (ibfd)) | |
| 11572 | continue; | |
| 11573 | ||
| 11574 | ent = ppc64_tlsld_got (ibfd); | |
| 11575 | if (!ent->is_indirect | |
| 11576 | && ent->got.offset != (bfd_vma) -1) | |
| 11577 | { | |
| 11578 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11579 | ent->got.offset = s->size; | |
| 11580 | s->size += 16; | |
| 0e1862bb | 11581 | if (bfd_link_pic (info)) |
| 927be08e AM |
11582 | { |
| 11583 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11584 | srel->size += sizeof (Elf64_External_Rela); | |
| 11585 | } | |
| 11586 | } | |
| 11587 | } | |
| 11588 | ||
| 33e44f2e | 11589 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11590 | if (!done_something) |
| c72f2fb2 | 11591 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11592 | { |
| 11593 | asection *got; | |
| 11594 | ||
| 11595 | if (!is_ppc64_elf (ibfd)) | |
| 11596 | continue; | |
| 11597 | ||
| 11598 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11599 | if (got != NULL) | |
| 11600 | { | |
| 11601 | done_something = got->rawsize != got->size; | |
| 11602 | if (done_something) | |
| 11603 | break; | |
| 11604 | } | |
| 11605 | } | |
| 11606 | ||
| 11607 | if (done_something) | |
| e7d1c40c | 11608 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11609 | |
| 11610 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11611 | on input sections. */ | |
| 11612 | htab->toc_bfd = NULL; | |
| 11613 | htab->toc_first_sec = NULL; | |
| 11614 | htab->second_toc_pass = TRUE; | |
| 11615 | return done_something; | |
| 11616 | } | |
| 11617 | ||
| 11618 | /* Called after second pass of multitoc partitioning. */ | |
| 11619 | ||
| 11620 | void | |
| 11621 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11622 | { | |
| 11623 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11624 | ||
| 11625 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11626 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11627 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11628 | } |
| 11629 | ||
| 9b5ecbd0 AM |
11630 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11631 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11632 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11633 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11634 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11635 | for a stub was detected. If called from the top level, a return of | |
| 11636 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11637 | |
| 11638 | static int | |
| 4ce794b7 | 11639 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11640 | { |
| 9b5ecbd0 | 11641 | int ret; |
| 70cc837d AM |
11642 | |
| 11643 | /* Mark this section as checked. */ | |
| 11644 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11645 | |
| 772119ce AM |
11646 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11647 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11648 | return 0; | |
| 11649 | ||
| eea6121a | 11650 | if (isec->size == 0) |
| 082c50f8 AM |
11651 | return 0; |
| 11652 | ||
| 4c52953f AM |
11653 | if (isec->output_section == NULL) |
| 11654 | return 0; | |
| 11655 | ||
| 4c52953f | 11656 | ret = 0; |
| 70cc837d | 11657 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11658 | { |
| 70cc837d AM |
11659 | Elf_Internal_Rela *relstart, *rel; |
| 11660 | Elf_Internal_Sym *local_syms; | |
| 11661 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11662 | |
| 70cc837d AM |
11663 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11664 | info->keep_memory); | |
| 11665 | if (relstart == NULL) | |
| 11666 | return -1; | |
| 90aecf7a | 11667 | |
| 70cc837d AM |
11668 | /* Look for branches to outside of this section. */ |
| 11669 | local_syms = NULL; | |
| 11670 | htab = ppc_hash_table (info); | |
| 11671 | if (htab == NULL) | |
| 11672 | return -1; | |
| 4c52953f | 11673 | |
| 70cc837d | 11674 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11675 | { |
| 70cc837d AM |
11676 | enum elf_ppc64_reloc_type r_type; |
| 11677 | unsigned long r_symndx; | |
| 11678 | struct elf_link_hash_entry *h; | |
| 11679 | struct ppc_link_hash_entry *eh; | |
| 11680 | Elf_Internal_Sym *sym; | |
| 11681 | asection *sym_sec; | |
| 11682 | struct _opd_sec_data *opd; | |
| 11683 | bfd_vma sym_value; | |
| 11684 | bfd_vma dest; | |
| 11685 | ||
| 11686 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11687 | if (r_type != R_PPC64_REL24 | |
| 11688 | && r_type != R_PPC64_REL14 | |
| 11689 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11690 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11691 | continue; | |
| 4c52953f | 11692 | |
| 70cc837d AM |
11693 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11694 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11695 | isec->owner)) | |
| 4c52953f | 11696 | { |
| 70cc837d AM |
11697 | ret = -1; |
| 11698 | break; | |
| 11699 | } | |
| 4c52953f | 11700 | |
| 70cc837d AM |
11701 | /* Calls to dynamic lib functions go through a plt call stub |
| 11702 | that uses r2. */ | |
| 11703 | eh = (struct ppc_link_hash_entry *) h; | |
| 11704 | if (eh != NULL | |
| 11705 | && (eh->elf.plt.plist != NULL | |
| 11706 | || (eh->oh != NULL | |
| 11707 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11708 | { | |
| 11709 | ret = 1; | |
| 11710 | break; | |
| 4c52953f AM |
11711 | } |
| 11712 | ||
| 70cc837d AM |
11713 | if (sym_sec == NULL) |
| 11714 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11715 | continue; |
| 4c52953f | 11716 | |
| 70cc837d AM |
11717 | /* Assume branches to other sections not included in the |
| 11718 | link need stubs too, to cover -R and absolute syms. */ | |
| 11719 | if (sym_sec->output_section == NULL) | |
| 11720 | { | |
| 11721 | ret = 1; | |
| 11722 | break; | |
| 11723 | } | |
| 4c52953f | 11724 | |
| 70cc837d AM |
11725 | if (h == NULL) |
| 11726 | sym_value = sym->st_value; | |
| 11727 | else | |
| 11728 | { | |
| 11729 | if (h->root.type != bfd_link_hash_defined | |
| 11730 | && h->root.type != bfd_link_hash_defweak) | |
| 11731 | abort (); | |
| 11732 | sym_value = h->root.u.def.value; | |
| 11733 | } | |
| 11734 | sym_value += rel->r_addend; | |
| 4c52953f | 11735 | |
| 70cc837d AM |
11736 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11737 | opd = get_opd_info (sym_sec); | |
| 11738 | if (opd != NULL) | |
| 11739 | { | |
| 11740 | if (h == NULL && opd->adjust != NULL) | |
| 11741 | { | |
| 11742 | long adjust; | |
| 4c52953f | 11743 | |
| 92a9c616 | 11744 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11745 | if (adjust == -1) |
| 11746 | /* Assume deleted functions won't ever be called. */ | |
| 11747 | continue; | |
| 11748 | sym_value += adjust; | |
| 11749 | } | |
| 4c52953f | 11750 | |
| aef36ac1 AM |
11751 | dest = opd_entry_value (sym_sec, sym_value, |
| 11752 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11753 | if (dest == (bfd_vma) -1) |
| 11754 | continue; | |
| 11755 | } | |
| 11756 | else | |
| 11757 | dest = (sym_value | |
| 11758 | + sym_sec->output_offset | |
| 11759 | + sym_sec->output_section->vma); | |
| 4c52953f | 11760 | |
| 70cc837d AM |
11761 | /* Ignore branch to self. */ |
| 11762 | if (sym_sec == isec) | |
| 11763 | continue; | |
| 4c52953f | 11764 | |
| 70cc837d AM |
11765 | /* If the called function uses the toc, we need a stub. */ |
| 11766 | if (sym_sec->has_toc_reloc | |
| 11767 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11768 | { |
| 70cc837d | 11769 | ret = 1; |
| 4c52953f AM |
11770 | break; |
| 11771 | } | |
| 70cc837d AM |
11772 | |
| 11773 | /* Assume any branch that needs a long branch stub might in fact | |
| 11774 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11775 | else if (dest - (isec->output_offset | |
| 11776 | + isec->output_section->vma | |
| 6911b7dc AM |
11777 | + rel->r_offset) + (1 << 25) |
| 11778 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11779 | ? h->other | |
| 11780 | : sym->st_other)) | |
| 4c52953f | 11781 | { |
| 70cc837d AM |
11782 | ret = 1; |
| 11783 | break; | |
| 11784 | } | |
| 11785 | ||
| 11786 | /* If calling back to a section in the process of being | |
| 11787 | tested, we can't say for sure that no toc adjusting stubs | |
| 11788 | are needed, so don't return zero. */ | |
| 11789 | else if (sym_sec->call_check_in_progress) | |
| 11790 | ret = 2; | |
| 11791 | ||
| 11792 | /* Branches to another section that itself doesn't have any TOC | |
| 11793 | references are OK. Recursively call ourselves to check. */ | |
| 11794 | else if (!sym_sec->call_check_done) | |
| 11795 | { | |
| 11796 | int recur; | |
| 11797 | ||
| 11798 | /* Mark current section as indeterminate, so that other | |
| 11799 | sections that call back to current won't be marked as | |
| 11800 | known. */ | |
| 11801 | isec->call_check_in_progress = 1; | |
| 11802 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11803 | isec->call_check_in_progress = 0; | |
| 11804 | ||
| 4c52953f AM |
11805 | if (recur != 0) |
| 11806 | { | |
| 70cc837d AM |
11807 | ret = recur; |
| 11808 | if (recur != 2) | |
| 11809 | break; | |
| 4c52953f AM |
11810 | } |
| 11811 | } | |
| 4c52953f | 11812 | } |
| 70cc837d AM |
11813 | |
| 11814 | if (local_syms != NULL | |
| 11815 | && (elf_symtab_hdr (isec->owner).contents | |
| 11816 | != (unsigned char *) local_syms)) | |
| 11817 | free (local_syms); | |
| 11818 | if (elf_section_data (isec)->relocs != relstart) | |
| 11819 | free (relstart); | |
| 9b5ecbd0 AM |
11820 | } |
| 11821 | ||
| 70cc837d AM |
11822 | if ((ret & 1) == 0 |
| 11823 | && isec->map_head.s != NULL | |
| 11824 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11825 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11826 | { | |
| 11827 | if (isec->map_head.s->has_toc_reloc | |
| 11828 | || isec->map_head.s->makes_toc_func_call) | |
| 11829 | ret = 1; | |
| 11830 | else if (!isec->map_head.s->call_check_done) | |
| 11831 | { | |
| 11832 | int recur; | |
| 11833 | isec->call_check_in_progress = 1; | |
| 11834 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11835 | isec->call_check_in_progress = 0; | |
| 11836 | if (recur != 0) | |
| 11837 | ret = recur; | |
| 11838 | } | |
| 11839 | } | |
| 11840 | ||
| 11841 | if (ret == 1) | |
| 11842 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11843 | |
| 9b5ecbd0 AM |
11844 | return ret; |
| 11845 | } | |
| 11846 | ||
| 721956f4 AM |
11847 | /* The linker repeatedly calls this function for each input section, |
| 11848 | in the order that input sections are linked into output sections. | |
| 11849 | Build lists of input sections to determine groupings between which | |
| 11850 | we may insert linker stubs. */ | |
| 11851 | ||
| 9b5ecbd0 | 11852 | bfd_boolean |
| 4ce794b7 | 11853 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11854 | { |
| 11855 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11856 | ||
| 4dfe6ac6 NC |
11857 | if (htab == NULL) |
| 11858 | return FALSE; | |
| 11859 | ||
| 734b6cf9 | 11860 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 11861 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 11862 | { |
| 3d6f9012 AM |
11863 | /* This happens to make the list in reverse order, |
| 11864 | which is what we want. */ | |
| 6f20ed8a AM |
11865 | htab->sec_info[isec->id].u.list |
| 11866 | = htab->sec_info[isec->output_section->id].u.list; | |
| 11867 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 11868 | } |
| ad8e1ba5 | 11869 | |
| 4c52953f | 11870 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11871 | { |
| 8b974ba3 AM |
11872 | /* Analyse sections that aren't already flagged as needing a |
| 11873 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 11874 | .fixup contains branches, but only back to the function that | |
| 11875 | hit an exception. */ | |
| 11876 | if (!(isec->has_toc_reloc | |
| 11877 | || (isec->flags & SEC_CODE) == 0 | |
| 11878 | || strcmp (isec->name, ".fixup") == 0 | |
| 11879 | || isec->call_check_done)) | |
| 11880 | { | |
| 11881 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 11882 | return FALSE; |
| 8b974ba3 AM |
11883 | } |
| 11884 | /* Make all sections use the TOC assigned for this object file. | |
| 11885 | This will be wrong for pasted sections; We fix that in | |
| 11886 | check_pasted_section(). */ | |
| 11887 | if (elf_gp (isec->owner) != 0) | |
| 11888 | htab->toc_curr = elf_gp (isec->owner); | |
| 11889 | } | |
| 11890 | ||
| 6f20ed8a | 11891 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11892 | return TRUE; |
| 721956f4 AM |
11893 | } |
| 11894 | ||
| 70cc837d AM |
11895 | /* Check that all .init and .fini sections use the same toc, if they |
| 11896 | have toc relocs. */ | |
| 11897 | ||
| 11898 | static bfd_boolean | |
| 11899 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11900 | { | |
| 11901 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11902 | ||
| 11903 | if (o != NULL) | |
| 11904 | { | |
| 11905 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11906 | bfd_vma toc_off = 0; | |
| 11907 | asection *i; | |
| 11908 | ||
| 11909 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11910 | if (i->has_toc_reloc) | |
| 11911 | { | |
| 11912 | if (toc_off == 0) | |
| 6f20ed8a AM |
11913 | toc_off = htab->sec_info[i->id].toc_off; |
| 11914 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
11915 | return FALSE; |
| 11916 | } | |
| 6683a28d AM |
11917 | |
| 11918 | if (toc_off == 0) | |
| 11919 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11920 | if (i->makes_toc_func_call) | |
| 11921 | { | |
| 6f20ed8a | 11922 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
11923 | break; |
| 11924 | } | |
| 11925 | ||
| 70cc837d AM |
11926 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11927 | if (toc_off != 0) | |
| 11928 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 11929 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
11930 | } |
| 11931 | return TRUE; | |
| 11932 | } | |
| 11933 | ||
| 11934 | bfd_boolean | |
| 11935 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11936 | { | |
| 11937 | return (check_pasted_section (info, ".init") | |
| 11938 | & check_pasted_section (info, ".fini")); | |
| 11939 | } | |
| 11940 | ||
| 721956f4 AM |
11941 | /* See whether we can group stub sections together. Grouping stub |
| 11942 | sections may result in fewer stubs. More importantly, we need to | |
| 11943 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11944 | .fini output sections respectively, because glibc splits the | |
| 11945 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11946 | the middle of a function is not a good idea. */ | |
| 11947 | ||
| 6f20ed8a AM |
11948 | static bfd_boolean |
| 11949 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
11950 | bfd_size_type stub_group_size, |
| 11951 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11952 | { |
| 6f20ed8a AM |
11953 | struct ppc_link_hash_table *htab; |
| 11954 | asection *osec; | |
| 7c8fe5c4 AM |
11955 | bfd_size_type stub14_group_size; |
| 11956 | bfd_boolean suppress_size_errors; | |
| 11957 | ||
| 6f20ed8a AM |
11958 | htab = ppc_hash_table (info); |
| 11959 | if (htab == NULL) | |
| 11960 | return FALSE; | |
| 11961 | ||
| 7c8fe5c4 | 11962 | suppress_size_errors = FALSE; |
| 0cfb0717 | 11963 | stub14_group_size = stub_group_size >> 10; |
| 7c8fe5c4 AM |
11964 | if (stub_group_size == 1) |
| 11965 | { | |
| 11966 | /* Default values. */ | |
| 11967 | if (stubs_always_before_branch) | |
| 11968 | { | |
| 11969 | stub_group_size = 0x1e00000; | |
| 11970 | stub14_group_size = 0x7800; | |
| 11971 | } | |
| 11972 | else | |
| 11973 | { | |
| 11974 | stub_group_size = 0x1c00000; | |
| 11975 | stub14_group_size = 0x7000; | |
| 11976 | } | |
| 11977 | suppress_size_errors = TRUE; | |
| 11978 | } | |
| 11979 | ||
| 6f20ed8a | 11980 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 11981 | { |
| 6f20ed8a AM |
11982 | asection *tail; |
| 11983 | ||
| 11984 | if (osec->id >= htab->sec_info_arr_size) | |
| 11985 | continue; | |
| 11986 | ||
| 11987 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 11988 | while (tail != NULL) |
| 721956f4 | 11989 | { |
| 734b6cf9 AM |
11990 | asection *curr; |
| 11991 | asection *prev; | |
| 11992 | bfd_size_type total; | |
| 11993 | bfd_boolean big_sec; | |
| 11994 | bfd_vma curr_toc; | |
| 6f20ed8a | 11995 | struct map_stub *group; |
| 734b6cf9 AM |
11996 | |
| 11997 | curr = tail; | |
| eea6121a | 11998 | total = tail->size; |
| 6bee8834 AM |
11999 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 12000 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
12001 | ? stub14_group_size : stub_group_size); |
| 12002 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
12003 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 12004 | tail->owner, tail); | |
| 6f20ed8a | 12005 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12006 | |
| 6f20ed8a | 12007 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12008 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12009 | < (ppc64_elf_section_data (prev) != NULL |
| 12010 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 12011 | ? stub14_group_size : stub_group_size)) |
| 6f20ed8a | 12012 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12013 | curr = prev; |
| 12014 | ||
| 12015 | /* OK, the size from the start of CURR to the end is less | |
| 12016 | than stub_group_size and thus can be handled by one stub | |
| 12017 | section. (or the tail section is itself larger than | |
| 12018 | stub_group_size, in which case we may be toast.) We | |
| 12019 | should really be keeping track of the total size of stubs | |
| 12020 | added here, as stubs contribute to the final output | |
| 12021 | section size. That's a little tricky, and this way will | |
| 12022 | only break if stubs added make the total size more than | |
| 12023 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 12024 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12025 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12026 | if (group == NULL) | |
| 12027 | return FALSE; | |
| 12028 | group->link_sec = curr; | |
| 12029 | group->stub_sec = NULL; | |
| a4b6fadd AM |
12030 | group->needs_save_res = 0; |
| 12031 | group->next = htab->group; | |
| 12032 | htab->group = group; | |
| 734b6cf9 | 12033 | do |
| 721956f4 | 12034 | { |
| 6f20ed8a | 12035 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12036 | /* Set up this stub group. */ |
| 6f20ed8a | 12037 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12038 | } |
| 734b6cf9 AM |
12039 | while (tail != curr && (tail = prev) != NULL); |
| 12040 | ||
| 12041 | /* But wait, there's more! Input sections up to stub_group_size | |
| 12042 | bytes before the stub section can be handled by it too. | |
| 12043 | Don't do this if we have a really large section after the | |
| 12044 | stubs, as adding more stubs increases the chance that | |
| 12045 | branches may not reach into the stub section. */ | |
| 12046 | if (!stubs_always_before_branch && !big_sec) | |
| 12047 | { | |
| 12048 | total = 0; | |
| 12049 | while (prev != NULL | |
| 12050 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12051 | < (ppc64_elf_section_data (prev) != NULL |
| 12052 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 12053 | ? stub14_group_size : stub_group_size)) |
| 6f20ed8a | 12054 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12055 | { |
| 12056 | tail = prev; | |
| 6f20ed8a AM |
12057 | prev = htab->sec_info[tail->id].u.list; |
| 12058 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12059 | } |
| 12060 | } | |
| 12061 | tail = prev; | |
| 721956f4 AM |
12062 | } |
| 12063 | } | |
| 6f20ed8a | 12064 | return TRUE; |
| 721956f4 AM |
12065 | } |
| 12066 | ||
| 58d180e8 AM |
12067 | static const unsigned char glink_eh_frame_cie[] = |
| 12068 | { | |
| 12069 | 0, 0, 0, 16, /* length. */ | |
| 12070 | 0, 0, 0, 0, /* id. */ | |
| 12071 | 1, /* CIE version. */ | |
| 12072 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12073 | 4, /* Code alignment. */ | |
| 12074 | 0x78, /* Data alignment. */ | |
| 12075 | 65, /* RA reg. */ | |
| 12076 | 1, /* Augmentation size. */ | |
| 12077 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
12078 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 12079 | 0, 0, 0, 0 | |
| 58d180e8 AM |
12080 | }; |
| 12081 | ||
| d969d15f AM |
12082 | /* Stripping output sections is normally done before dynamic section |
| 12083 | symbols have been allocated. This function is called later, and | |
| 12084 | handles cases like htab->brlt which is mapped to its own output | |
| 12085 | section. */ | |
| 12086 | ||
| 12087 | static void | |
| 12088 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12089 | { | |
| 12090 | if (isec->size == 0 | |
| 12091 | && isec->output_section->size == 0 | |
| 53d8967a | 12092 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12093 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12094 | isec->output_section) | |
| 12095 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12096 | { | |
| 12097 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12098 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12099 | info->output_bfd->section_count--; | |
| 12100 | } | |
| 12101 | } | |
| 12102 | ||
| 721956f4 AM |
12103 | /* Determine and set the size of the stub section for a final link. |
| 12104 | ||
| 12105 | The basic idea here is to examine all the relocations looking for | |
| 12106 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12107 | instruction. */ | |
| 12108 | ||
| b34976b6 | 12109 | bfd_boolean |
| e7d1c40c | 12110 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12111 | { |
| 12112 | bfd_size_type stub_group_size; | |
| b34976b6 | 12113 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12114 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12115 | ||
| 4dfe6ac6 NC |
12116 | if (htab == NULL) |
| 12117 | return FALSE; | |
| 12118 | ||
| 0e1862bb | 12119 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12120 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12121 | if (!htab->opd_abi) |
| e7d1c40c AM |
12122 | htab->params->plt_thread_safe = 0; |
| 12123 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12124 | { |
| e2458743 | 12125 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12126 | { |
| 12127 | "pthread_create", | |
| 12128 | /* libstdc++ */ | |
| 12129 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12130 | /* librt */ | |
| 12131 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12132 | "mq_notify", "create_timer", | |
| 12133 | /* libanl */ | |
| 12134 | "getaddrinfo_a", | |
| 12135 | /* libgomp */ | |
| 2300b5a1 | 12136 | "GOMP_parallel", |
| 794e51c0 | 12137 | "GOMP_parallel_start", |
| 2300b5a1 | 12138 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12139 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12140 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12141 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12142 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12143 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12144 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12145 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12146 | "GOMP_parallel_sections", |
| 68ffbac6 | 12147 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12148 | /* libgo */ |
| 12149 | "__go_go", | |
| 794e51c0 AM |
12150 | }; |
| 12151 | unsigned i; | |
| 12152 | ||
| a4b6fadd | 12153 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12154 | { |
| 12155 | struct elf_link_hash_entry *h; | |
| 12156 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12157 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12158 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12159 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12160 | break; |
| 12161 | } | |
| 12162 | } | |
| e7d1c40c AM |
12163 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12164 | if (htab->params->group_size < 0) | |
| 12165 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12166 | else |
| e7d1c40c | 12167 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12168 | |
| 6f20ed8a AM |
12169 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12170 | return FALSE; | |
| 721956f4 | 12171 | |
| 721956f4 AM |
12172 | while (1) |
| 12173 | { | |
| 12174 | bfd *input_bfd; | |
| 12175 | unsigned int bfd_indx; | |
| a4b6fadd | 12176 | struct map_stub *group; |
| 721956f4 | 12177 | asection *stub_sec; |
| 721956f4 AM |
12178 | |
| 12179 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12180 | |
| 12181 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12182 | input_bfd != NULL; | |
| c72f2fb2 | 12183 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12184 | { |
| 12185 | Elf_Internal_Shdr *symtab_hdr; | |
| 12186 | asection *section; | |
| 6cdc0ccc | 12187 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12188 | |
| 0c8d6e5c | 12189 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12190 | continue; |
| 12191 | ||
| 721956f4 | 12192 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12193 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12194 | if (symtab_hdr->sh_info == 0) |
| 12195 | continue; | |
| 12196 | ||
| 721956f4 AM |
12197 | /* Walk over each section attached to the input bfd. */ |
| 12198 | for (section = input_bfd->sections; | |
| 12199 | section != NULL; | |
| 12200 | section = section->next) | |
| 12201 | { | |
| 721956f4 | 12202 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12203 | |
| 12204 | /* If there aren't any relocs, then there's nothing more | |
| 12205 | to do. */ | |
| 12206 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12207 | || (section->flags & SEC_ALLOC) == 0 |
| 12208 | || (section->flags & SEC_LOAD) == 0 | |
| 12209 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12210 | || section->reloc_count == 0) |
| 12211 | continue; | |
| 12212 | ||
| 12213 | /* If this section is a link-once section that will be | |
| 12214 | discarded, then don't create any stubs. */ | |
| 12215 | if (section->output_section == NULL | |
| 927be08e | 12216 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12217 | continue; |
| 12218 | ||
| 1e2f5b6e AM |
12219 | /* Get the relocs. */ |
| 12220 | internal_relocs | |
| 4ce794b7 | 12221 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12222 | info->keep_memory); |
| 721956f4 | 12223 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12224 | goto error_ret_free_local; |
| 721956f4 AM |
12225 | |
| 12226 | /* Now examine each relocation. */ | |
| 12227 | irela = internal_relocs; | |
| 12228 | irelaend = irela + section->reloc_count; | |
| 12229 | for (; irela < irelaend; irela++) | |
| 12230 | { | |
| 4ce794b7 AM |
12231 | enum elf_ppc64_reloc_type r_type; |
| 12232 | unsigned int r_indx; | |
| 721956f4 AM |
12233 | enum ppc_stub_type stub_type; |
| 12234 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12235 | asection *sym_sec, *code_sec; |
| e054468f | 12236 | bfd_vma sym_value, code_value; |
| 721956f4 | 12237 | bfd_vma destination; |
| 6911b7dc | 12238 | unsigned long local_off; |
| 8843416a | 12239 | bfd_boolean ok_dest; |
| 721956f4 | 12240 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12241 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12242 | struct elf_link_hash_entry *h; |
| 12243 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12244 | char *stub_name; |
| 12245 | const asection *id_sec; | |
| 74f0fb50 | 12246 | struct _opd_sec_data *opd; |
| e054468f | 12247 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12248 | |
| 12249 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12250 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12251 | ||
| 4ce794b7 | 12252 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12253 | { |
| 12254 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12255 | goto error_ret_free_internal; |
| 721956f4 AM |
12256 | } |
| 12257 | ||
| 12258 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12259 | if (r_type != R_PPC64_REL24 |
| 12260 | && r_type != R_PPC64_REL14 | |
| 12261 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12262 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12263 | continue; |
| 12264 | ||
| 12265 | /* Now determine the call target, its name, value, | |
| 12266 | section. */ | |
| 411e1bfb AM |
12267 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12268 | r_indx, input_bfd)) | |
| 12269 | goto error_ret_free_internal; | |
| 12270 | hash = (struct ppc_link_hash_entry *) h; | |
| 12271 | ||
| 8843416a | 12272 | ok_dest = FALSE; |
| 8387904d | 12273 | fdh = NULL; |
| 7fe2b9a6 | 12274 | sym_value = 0; |
| 411e1bfb | 12275 | if (hash == NULL) |
| 721956f4 | 12276 | { |
| 411e1bfb | 12277 | sym_value = sym->st_value; |
| 8843416a | 12278 | ok_dest = TRUE; |
| 721956f4 | 12279 | } |
| 7fe2b9a6 AM |
12280 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12281 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12282 | { | |
| 12283 | sym_value = hash->elf.root.u.def.value; | |
| 12284 | if (sym_sec->output_section != NULL) | |
| 12285 | ok_dest = TRUE; | |
| 12286 | } | |
| 12287 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12288 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12289 | { |
| 99877b66 | 12290 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12291 | use the func descriptor sym instead if it is |
| 12292 | defined. */ | |
| ceb1f1ef | 12293 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 12294 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 12295 | { |
| 8387904d AM |
12296 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12297 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12298 | { | |
| 12299 | sym_sec = fdh->elf.root.u.def.section; | |
| 12300 | sym_value = fdh->elf.root.u.def.value; | |
| 12301 | if (sym_sec->output_section != NULL) | |
| 12302 | ok_dest = TRUE; | |
| 12303 | } | |
| 99877b66 AM |
12304 | else |
| 12305 | fdh = NULL; | |
| 8387904d | 12306 | } |
| 7fe2b9a6 AM |
12307 | } |
| 12308 | else | |
| 12309 | { | |
| 12310 | bfd_set_error (bfd_error_bad_value); | |
| 12311 | goto error_ret_free_internal; | |
| 721956f4 AM |
12312 | } |
| 12313 | ||
| 8843416a | 12314 | destination = 0; |
| 6911b7dc | 12315 | local_off = 0; |
| 8843416a AM |
12316 | if (ok_dest) |
| 12317 | { | |
| 12318 | sym_value += irela->r_addend; | |
| 12319 | destination = (sym_value | |
| 12320 | + sym_sec->output_offset | |
| 12321 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12322 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12323 | ? hash->elf.other | |
| 12324 | : sym->st_other); | |
| 8843416a AM |
12325 | } |
| 12326 | ||
| 8387904d | 12327 | code_sec = sym_sec; |
| e054468f | 12328 | code_value = sym_value; |
| 74f0fb50 AM |
12329 | opd = get_opd_info (sym_sec); |
| 12330 | if (opd != NULL) | |
| 8387904d AM |
12331 | { |
| 12332 | bfd_vma dest; | |
| 12333 | ||
| 74f0fb50 | 12334 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12335 | { |
| 51aecdc5 | 12336 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12337 | if (adjust == -1) |
| 12338 | continue; | |
| e054468f | 12339 | code_value += adjust; |
| 8387904d AM |
12340 | sym_value += adjust; |
| 12341 | } | |
| 12342 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12343 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12344 | if (dest != (bfd_vma) -1) |
| 12345 | { | |
| 12346 | destination = dest; | |
| 12347 | if (fdh != NULL) | |
| 12348 | { | |
| 12349 | /* Fixup old ABI sym to point at code | |
| 12350 | entry. */ | |
| 99877b66 | 12351 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12352 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12353 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12354 | } |
| 12355 | } | |
| 12356 | } | |
| 12357 | ||
| 721956f4 | 12358 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12359 | plt_ent = NULL; |
| 721956f4 | 12360 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12361 | &plt_ent, destination, |
| 12362 | local_off); | |
| ad8e1ba5 AM |
12363 | |
| 12364 | if (stub_type != ppc_stub_plt_call) | |
| 12365 | { | |
| 12366 | /* Check whether we need a TOC adjusting stub. | |
| 12367 | Since the linker pastes together pieces from | |
| 12368 | different object files when creating the | |
| 12369 | _init and _fini functions, it may be that a | |
| 12370 | call to what looks like a local sym is in | |
| 12371 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12372 | if (code_sec != NULL |
| 12373 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12374 | && (htab->sec_info[code_sec->id].toc_off |
| 12375 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12376 | && (code_sec->has_toc_reloc |
| 12377 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12378 | stub_type = ppc_stub_long_branch_r2off; |
| 12379 | } | |
| 12380 | ||
| 721956f4 AM |
12381 | if (stub_type == ppc_stub_none) |
| 12382 | continue; | |
| 12383 | ||
| 411e1bfb AM |
12384 | /* __tls_get_addr calls might be eliminated. */ |
| 12385 | if (stub_type != ppc_stub_plt_call | |
| 12386 | && hash != NULL | |
| 8387904d AM |
12387 | && (hash == htab->tls_get_addr |
| 12388 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12389 | && section->has_tls_reloc |
| 12390 | && irela != internal_relocs) | |
| 12391 | { | |
| 12392 | /* Get tls info. */ | |
| f961d9dd | 12393 | unsigned char *tls_mask; |
| 411e1bfb | 12394 | |
| 3a71aa26 | 12395 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12396 | irela - 1, input_bfd)) |
| 12397 | goto error_ret_free_internal; | |
| e7b938ca | 12398 | if (*tls_mask != 0) |
| 411e1bfb AM |
12399 | continue; |
| 12400 | } | |
| 12401 | ||
| 3b421ab3 AM |
12402 | if (stub_type == ppc_stub_plt_call |
| 12403 | && irela + 1 < irelaend | |
| 12404 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12405 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12406 | { | |
| 12407 | if (!tocsave_find (htab, INSERT, | |
| 12408 | &local_syms, irela + 1, input_bfd)) | |
| 12409 | goto error_ret_free_internal; | |
| 12410 | } | |
| 12411 | else if (stub_type == ppc_stub_plt_call) | |
| 12412 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12413 | |
| 721956f4 | 12414 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12415 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12416 | |
| 12417 | /* Get the name of this stub. */ | |
| 12418 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12419 | if (!stub_name) | |
| 12420 | goto error_ret_free_internal; | |
| 12421 | ||
| 12422 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12423 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12424 | if (stub_entry != NULL) |
| 12425 | { | |
| 12426 | /* The proper stub has already been created. */ | |
| 12427 | free (stub_name); | |
| 794e51c0 AM |
12428 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12429 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12430 | continue; |
| 12431 | } | |
| 12432 | ||
| 25f53a85 | 12433 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12434 | if (stub_entry == NULL) |
| 12435 | { | |
| 12436 | free (stub_name); | |
| 6cdc0ccc AM |
12437 | error_ret_free_internal: |
| 12438 | if (elf_section_data (section)->relocs == NULL) | |
| 12439 | free (internal_relocs); | |
| 12440 | error_ret_free_local: | |
| 12441 | if (local_syms != NULL | |
| 12442 | && (symtab_hdr->contents | |
| 12443 | != (unsigned char *) local_syms)) | |
| 12444 | free (local_syms); | |
| b34976b6 | 12445 | return FALSE; |
| 721956f4 AM |
12446 | } |
| 12447 | ||
| ad8e1ba5 | 12448 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12449 | if (stub_type != ppc_stub_plt_call |
| 12450 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12451 | { |
| 12452 | stub_entry->target_value = code_value; | |
| 12453 | stub_entry->target_section = code_sec; | |
| 12454 | } | |
| 12455 | else | |
| 12456 | { | |
| 12457 | stub_entry->target_value = sym_value; | |
| 12458 | stub_entry->target_section = sym_sec; | |
| 12459 | } | |
| 721956f4 | 12460 | stub_entry->h = hash; |
| e054468f | 12461 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12462 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12463 | |
| 12464 | if (stub_entry->h != NULL) | |
| 12465 | htab->stub_globals += 1; | |
| 721956f4 AM |
12466 | } |
| 12467 | ||
| 12468 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12469 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12470 | free (internal_relocs); |
| 721956f4 | 12471 | } |
| 6cdc0ccc AM |
12472 | |
| 12473 | if (local_syms != NULL | |
| 12474 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12475 | { | |
| 12476 | if (!info->keep_memory) | |
| 12477 | free (local_syms); | |
| 12478 | else | |
| 12479 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12480 | } | |
| 721956f4 AM |
12481 | } |
| 12482 | ||
| 5c3dead3 | 12483 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12484 | stub sections. */ |
| e7d1c40c | 12485 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12486 | stub_sec != NULL; |
| 12487 | stub_sec = stub_sec->next) | |
| e717da7e | 12488 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12489 | { |
| 5c3dead3 | 12490 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12491 | stub_sec->size = 0; |
| 12492 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12493 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12494 | } |
| eea6121a AM |
12495 | |
| 12496 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12497 | htab->brlt->reloc_count = 0; |
| 12498 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12499 | if (htab->relbrlt != NULL) |
| eea6121a | 12500 | htab->relbrlt->size = 0; |
| 721956f4 | 12501 | |
| 63bc6f6c | 12502 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12503 | |
| a4b6fadd AM |
12504 | for (group = htab->group; group != NULL; group = group->next) |
| 12505 | if (group->needs_save_res) | |
| 12506 | group->stub_sec->size += htab->sfpr->size; | |
| 12507 | ||
| 176a0d42 AM |
12508 | if (info->emitrelocations |
| 12509 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12510 | { | |
| 12511 | htab->glink->reloc_count = 1; | |
| 12512 | htab->glink->flags |= SEC_RELOC; | |
| 12513 | } | |
| 12514 | ||
| 58d180e8 AM |
12515 | if (htab->glink_eh_frame != NULL |
| 12516 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12517 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12518 | { |
| 4bbe044a | 12519 | size_t size = 0, align; |
| 58d180e8 | 12520 | |
| e7d1c40c | 12521 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12522 | stub_sec != NULL; |
| 12523 | stub_sec = stub_sec->next) | |
| 12524 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12525 | size += 24; |
| 58d180e8 AM |
12526 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12527 | size += 24; | |
| 12528 | if (size != 0) | |
| 12529 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12530 | align = 1; |
| 12531 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12532 | align -= 1; | |
| 12533 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12534 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12535 | htab->glink_eh_frame->size = size; | |
| 12536 | } | |
| 12537 | ||
| e7d1c40c AM |
12538 | if (htab->params->plt_stub_align != 0) |
| 12539 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12540 | stub_sec != NULL; |
| 12541 | stub_sec = stub_sec->next) | |
| 12542 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12543 | stub_sec->size = ((stub_sec->size |
| 12544 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 12545 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 12546 | |
| e7d1c40c | 12547 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12548 | stub_sec != NULL; |
| 12549 | stub_sec = stub_sec->next) | |
| 12550 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| 12551 | && stub_sec->rawsize != stub_sec->size) | |
| 12552 | break; | |
| 12553 | ||
| 12554 | /* Exit from this loop when no stubs have been added, and no stubs | |
| 12555 | have changed size. */ | |
| 58d180e8 AM |
12556 | if (stub_sec == NULL |
| 12557 | && (htab->glink_eh_frame == NULL | |
| 12558 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12559 | break; |
| 12560 | ||
| 721956f4 | 12561 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12562 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12563 | } |
| 12564 | ||
| da44f4e5 AM |
12565 | if (htab->glink_eh_frame != NULL |
| 12566 | && htab->glink_eh_frame->size != 0) | |
| 12567 | { | |
| 12568 | bfd_vma val; | |
| 12569 | bfd_byte *p, *last_fde; | |
| 12570 | size_t last_fde_len, size, align, pad; | |
| 12571 | asection *stub_sec; | |
| 12572 | ||
| 12573 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12574 | if (p == NULL) | |
| 12575 | return FALSE; | |
| 12576 | htab->glink_eh_frame->contents = p; | |
| 12577 | last_fde = p; | |
| 12578 | ||
| 12579 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12580 | /* CIE length (rewrite in case little-endian). */ | |
| 12581 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12582 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12583 | p += sizeof (glink_eh_frame_cie); | |
| 12584 | ||
| 12585 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12586 | stub_sec != NULL; | |
| 12587 | stub_sec = stub_sec->next) | |
| 12588 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12589 | { | |
| 12590 | last_fde = p; | |
| 12591 | last_fde_len = 20; | |
| 12592 | /* FDE length. */ | |
| 12593 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12594 | p += 4; | |
| 12595 | /* CIE pointer. */ | |
| 12596 | val = p - htab->glink_eh_frame->contents; | |
| 12597 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12598 | p += 4; | |
| 12599 | /* Offset to stub section, written later. */ | |
| 12600 | p += 4; | |
| 12601 | /* stub section size. */ | |
| 12602 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12603 | p += 4; | |
| 12604 | /* Augmentation. */ | |
| 12605 | p += 1; | |
| 12606 | /* Pad. */ | |
| 12607 | p += 7; | |
| 12608 | } | |
| 12609 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12610 | { | |
| 12611 | last_fde = p; | |
| 12612 | last_fde_len = 20; | |
| 12613 | /* FDE length. */ | |
| 12614 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12615 | p += 4; | |
| 12616 | /* CIE pointer. */ | |
| 12617 | val = p - htab->glink_eh_frame->contents; | |
| 12618 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12619 | p += 4; | |
| 12620 | /* Offset to .glink, written later. */ | |
| 12621 | p += 4; | |
| 12622 | /* .glink size. */ | |
| 12623 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12624 | p += 4; | |
| 12625 | /* Augmentation. */ | |
| 12626 | p += 1; | |
| 12627 | ||
| 12628 | *p++ = DW_CFA_advance_loc + 1; | |
| 12629 | *p++ = DW_CFA_register; | |
| 12630 | *p++ = 65; | |
| 9f08fa5c | 12631 | *p++ = htab->opd_abi ? 12 : 0; |
| da44f4e5 AM |
12632 | *p++ = DW_CFA_advance_loc + 4; |
| 12633 | *p++ = DW_CFA_restore_extended; | |
| 12634 | *p++ = 65; | |
| 12635 | } | |
| 12636 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12637 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12638 | zero padding will be seen as a terminator. */ | |
| 12639 | size = p - htab->glink_eh_frame->contents; | |
| 12640 | align = 1; | |
| 12641 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12642 | align -= 1; | |
| 12643 | pad = ((size + align) & ~align) - size; | |
| 12644 | htab->glink_eh_frame->size = size + pad; | |
| 12645 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12646 | } | |
| 12647 | ||
| d969d15f AM |
12648 | maybe_strip_output (info, htab->brlt); |
| 12649 | if (htab->glink_eh_frame != NULL) | |
| 12650 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12651 | |
| b34976b6 | 12652 | return TRUE; |
| 721956f4 AM |
12653 | } |
| 12654 | ||
| 12655 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12656 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12657 | |
| 805fc799 | 12658 | bfd_vma |
| 1c865ab2 | 12659 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12660 | { |
| 805fc799 | 12661 | asection *s; |
| a27e685f | 12662 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12663 | |
| 43417696 AM |
12664 | if (info != NULL) |
| 12665 | { | |
| 12666 | struct elf_link_hash_entry *h; | |
| 12667 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12668 | ||
| 12669 | if (is_elf_hash_table (htab) | |
| 12670 | && htab->hgot != NULL) | |
| 12671 | h = htab->hgot; | |
| 12672 | else | |
| 12673 | { | |
| 12674 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12675 | if (is_elf_hash_table (htab)) | |
| 12676 | htab->hgot = h; | |
| 12677 | } | |
| 12678 | if (h != NULL | |
| 12679 | && h->root.type == bfd_link_hash_defined | |
| 12680 | && !h->root.linker_def | |
| 12681 | && (!is_elf_hash_table (htab) | |
| 12682 | || h->def_regular)) | |
| 12683 | { | |
| 12684 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12685 | + h->root.u.def.section->output_offset | |
| 12686 | + h->root.u.def.section->output_section->vma); | |
| 12687 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12688 | return TOCstart; | |
| 12689 | } | |
| 12690 | } | |
| 12691 | ||
| 805fc799 AM |
12692 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12693 | order. The TOC starts where the first of these sections starts. */ | |
| 12694 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12695 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12696 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12697 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12698 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12699 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12700 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12701 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12702 | { |
| 12703 | /* This may happen for | |
| 12704 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12705 | .toc directive | |
| 12706 | o bad linker script | |
| 12707 | o --gc-sections and empty TOC sections | |
| 12708 | ||
| 12709 | FIXME: Warn user? */ | |
| 12710 | ||
| 12711 | /* Look for a likely section. We probably won't even be | |
| 12712 | using TOCstart. */ | |
| 12713 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12714 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12715 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12716 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12717 | break; | |
| 721956f4 | 12718 | if (s == NULL) |
| 805fc799 | 12719 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12720 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12721 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12722 | break; | |
| 721956f4 | 12723 | if (s == NULL) |
| 805fc799 | 12724 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12725 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12726 | == SEC_ALLOC) | |
| 805fc799 | 12727 | break; |
| 721956f4 | 12728 | if (s == NULL) |
| 805fc799 | 12729 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12730 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12731 | break; |
| 12732 | } | |
| 721956f4 | 12733 | |
| 805fc799 AM |
12734 | TOCstart = 0; |
| 12735 | if (s != NULL) | |
| 12736 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12737 | |
| a27e685f AM |
12738 | /* Force alignment. */ |
| 12739 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12740 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12741 | _bfd_set_gp_value (obfd, TOCstart); |
| 12742 | ||
| 810d4e75 | 12743 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12744 | { |
| 12745 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12746 | ||
| 810d4e75 AM |
12747 | if (htab != NULL) |
| 12748 | { | |
| 12749 | if (htab->elf.hgot != NULL) | |
| 12750 | { | |
| a27e685f | 12751 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12752 | htab->elf.hgot->root.u.def.section = s; |
| 12753 | } | |
| 12754 | } | |
| 12755 | else | |
| 1c865ab2 | 12756 | { |
| 810d4e75 AM |
12757 | struct bfd_link_hash_entry *bh = NULL; |
| 12758 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12759 | s, TOC_BASE_OFF - adjust, |
| 12760 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12761 | } |
| 12762 | } | |
| 805fc799 | 12763 | return TOCstart; |
| 721956f4 AM |
12764 | } |
| 12765 | ||
| a345bc8d AM |
12766 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12767 | write out any global entry stubs. */ | |
| 12768 | ||
| 12769 | static bfd_boolean | |
| 12770 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12771 | { | |
| 12772 | struct bfd_link_info *info; | |
| 12773 | struct ppc_link_hash_table *htab; | |
| 12774 | struct plt_entry *pent; | |
| 12775 | asection *s; | |
| 12776 | ||
| 12777 | if (h->root.type == bfd_link_hash_indirect) | |
| 12778 | return TRUE; | |
| 12779 | ||
| 12780 | if (!h->pointer_equality_needed) | |
| 12781 | return TRUE; | |
| 12782 | ||
| 12783 | if (h->def_regular) | |
| 12784 | return TRUE; | |
| 12785 | ||
| 12786 | info = inf; | |
| 12787 | htab = ppc_hash_table (info); | |
| 12788 | if (htab == NULL) | |
| 12789 | return FALSE; | |
| 12790 | ||
| 12791 | s = htab->glink; | |
| 12792 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12793 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12794 | && pent->addend == 0) | |
| 12795 | { | |
| 12796 | bfd_byte *p; | |
| 12797 | asection *plt; | |
| 12798 | bfd_vma off; | |
| 12799 | ||
| a345bc8d | 12800 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12801 | plt = htab->elf.splt; |
| a345bc8d AM |
12802 | if (!htab->elf.dynamic_sections_created |
| 12803 | || h->dynindx == -1) | |
| 33e44f2e | 12804 | plt = htab->elf.iplt; |
| a345bc8d AM |
12805 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12806 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12807 | ||
| 12808 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12809 | { | |
| 12810 | info->callbacks->einfo | |
| 12811 | (_("%P: linkage table error against `%T'\n"), | |
| 12812 | h->root.root.string); | |
| 12813 | bfd_set_error (bfd_error_bad_value); | |
| 12814 | htab->stub_error = TRUE; | |
| 12815 | } | |
| 12816 | ||
| 7341d5e2 AM |
12817 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12818 | if (htab->params->emit_stub_syms) | |
| 12819 | { | |
| 12820 | size_t len = strlen (h->root.root.string); | |
| 12821 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12822 | ||
| 12823 | if (name == NULL) | |
| 12824 | return FALSE; | |
| 12825 | ||
| 12826 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12827 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12828 | if (h == NULL) | |
| 12829 | return FALSE; | |
| 12830 | if (h->root.type == bfd_link_hash_new) | |
| 12831 | { | |
| 12832 | h->root.type = bfd_link_hash_defined; | |
| 12833 | h->root.u.def.section = s; | |
| 12834 | h->root.u.def.value = p - s->contents; | |
| 12835 | h->ref_regular = 1; | |
| 12836 | h->def_regular = 1; | |
| 12837 | h->ref_regular_nonweak = 1; | |
| 12838 | h->forced_local = 1; | |
| 12839 | h->non_elf = 0; | |
| 2ec55de3 | 12840 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12841 | } |
| 12842 | } | |
| 12843 | ||
| a345bc8d AM |
12844 | if (PPC_HA (off) != 0) |
| 12845 | { | |
| 12846 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12847 | p += 4; | |
| 12848 | } | |
| 12849 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 12850 | p += 4; | |
| 12851 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 12852 | p += 4; | |
| 12853 | bfd_put_32 (s->owner, BCTR, p); | |
| 12854 | break; | |
| 12855 | } | |
| 12856 | return TRUE; | |
| 12857 | } | |
| 12858 | ||
| 721956f4 AM |
12859 | /* Build all the stubs associated with the current output file. |
| 12860 | The stubs are kept in a hash table attached to the main linker | |
| 12861 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12862 | ||
| b34976b6 | 12863 | bfd_boolean |
| e7d1c40c | 12864 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 12865 | char **stats) |
| 5d1634d7 AM |
12866 | { |
| 12867 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 12868 | struct map_stub *group; |
| 721956f4 | 12869 | asection *stub_sec; |
| 5d1634d7 | 12870 | bfd_byte *p; |
| e717da7e | 12871 | int stub_sec_count = 0; |
| 5d1634d7 | 12872 | |
| 4dfe6ac6 NC |
12873 | if (htab == NULL) |
| 12874 | return FALSE; | |
| 12875 | ||
| eea6121a | 12876 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 12877 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12878 | stub_sec != NULL; |
| 12879 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12880 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12881 | && stub_sec->size != 0) | |
| e717da7e | 12882 | { |
| e7d1c40c | 12883 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
12884 | if (stub_sec->contents == NULL) |
| 12885 | return FALSE; | |
| 12886 | /* We want to check that built size is the same as calculated | |
| 12887 | size. rawsize is a convenient location to use. */ | |
| 12888 | stub_sec->rawsize = stub_sec->size; | |
| 12889 | stub_sec->size = 0; | |
| e717da7e | 12890 | } |
| 5d1634d7 | 12891 | |
| 23eb7e01 | 12892 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12893 | { |
| 9f951329 | 12894 | unsigned int indx; |
| ad8e1ba5 | 12895 | bfd_vma plt0; |
| 9f951329 | 12896 | |
| 721956f4 | 12897 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 12898 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
12899 | { |
| 12900 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12901 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12902 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12903 | if (h == NULL) |
| 12904 | return FALSE; | |
| 12905 | if (h->root.type == bfd_link_hash_new) | |
| 12906 | { | |
| 12907 | h->root.type = bfd_link_hash_defined; | |
| 12908 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12909 | h->root.u.def.value = 8; |
| f5385ebf AM |
12910 | h->ref_regular = 1; |
| 12911 | h->def_regular = 1; | |
| 12912 | h->ref_regular_nonweak = 1; | |
| 12913 | h->forced_local = 1; | |
| 12914 | h->non_elf = 0; | |
| 2ec55de3 | 12915 | h->root.linker_def = 1; |
| 97b639ba AM |
12916 | } |
| 12917 | } | |
| 33e44f2e AM |
12918 | plt0 = (htab->elf.splt->output_section->vma |
| 12919 | + htab->elf.splt->output_offset | |
| 12920 | - 16); | |
| 176a0d42 AM |
12921 | if (info->emitrelocations) |
| 12922 | { | |
| 12923 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12924 | if (r == NULL) | |
| 12925 | return FALSE; | |
| 12926 | r->r_offset = (htab->glink->output_offset | |
| 12927 | + htab->glink->output_section->vma); | |
| 12928 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12929 | r->r_addend = plt0; | |
| 12930 | } | |
| 4ce794b7 | 12931 | p = htab->glink->contents; |
| 176a0d42 | 12932 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12933 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12934 | p += 8; | |
| b9e5796b AM |
12935 | if (htab->opd_abi) |
| 12936 | { | |
| 12937 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 12938 | p += 4; | |
| 12939 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12940 | p += 4; | |
| 12941 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12942 | p += 4; | |
| 12943 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12944 | p += 4; | |
| 12945 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 12946 | p += 4; | |
| 12947 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12948 | p += 4; | |
| 12949 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12950 | p += 4; | |
| 12951 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 12952 | p += 4; | |
| 12953 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12954 | p += 4; | |
| 12955 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 12956 | p += 4; | |
| 12957 | } | |
| 12958 | else | |
| 12959 | { | |
| 12960 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 12961 | p += 4; | |
| 12962 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12963 | p += 4; | |
| 12964 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12965 | p += 4; | |
| 12966 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12967 | p += 4; | |
| 12968 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 12969 | p += 4; | |
| 12970 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 12971 | p += 4; | |
| 12972 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12973 | p += 4; | |
| 12974 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 12975 | p += 4; | |
| 12976 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12977 | p += 4; | |
| 12978 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 12979 | p += 4; | |
| 12980 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12981 | p += 4; | |
| 12982 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 12983 | p += 4; | |
| 12984 | } | |
| 4ce794b7 | 12985 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 12986 | p += 4; |
| ee4bf8d2 AM |
12987 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 12988 | { | |
| 12989 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 12990 | p += 4; | |
| 12991 | } | |
| ad8e1ba5 | 12992 | |
| 9f951329 AM |
12993 | /* Build the .glink lazy link call stubs. */ |
| 12994 | indx = 0; | |
| a345bc8d | 12995 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 12996 | { |
| b9e5796b | 12997 | if (htab->opd_abi) |
| 9f951329 | 12998 | { |
| b9e5796b AM |
12999 | if (indx < 0x8000) |
| 13000 | { | |
| 13001 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13002 | p += 4; | |
| 13003 | } | |
| 13004 | else | |
| 13005 | { | |
| 13006 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13007 | p += 4; | |
| 13008 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13009 | p); | |
| 13010 | p += 4; | |
| 13011 | } | |
| 9f951329 | 13012 | } |
| 4ce794b7 | 13013 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13014 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13015 | indx++; |
| 9f951329 AM |
13016 | p += 4; |
| 13017 | } | |
| a345bc8d AM |
13018 | |
| 13019 | /* Build .glink global entry stubs. */ | |
| 13020 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13021 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13022 | } |
| 5d1634d7 | 13023 | |
| 7341d5e2 | 13024 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13025 | { |
| 4ce794b7 | 13026 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13027 | htab->brlt->size); |
| 4ce794b7 | 13028 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13029 | return FALSE; |
| 721956f4 | 13030 | } |
| ee75fd95 | 13031 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13032 | { |
| 13033 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13034 | htab->relbrlt->size); |
| 63bc6f6c AM |
13035 | if (htab->relbrlt->contents == NULL) |
| 13036 | return FALSE; | |
| 13037 | } | |
| 5d1634d7 | 13038 | |
| 721956f4 AM |
13039 | /* Build the stubs as directed by the stub hash table. */ |
| 13040 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13041 | |
| a4b6fadd AM |
13042 | for (group = htab->group; group != NULL; group = group->next) |
| 13043 | if (group->needs_save_res) | |
| 13044 | { | |
| 13045 | stub_sec = group->stub_sec; | |
| 13046 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13047 | htab->sfpr->size); | |
| 13048 | if (htab->params->emit_stub_syms) | |
| 13049 | { | |
| 13050 | unsigned int i; | |
| 13051 | ||
| 13052 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13053 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13054 | return FALSE; | |
| 13055 | } | |
| 13056 | stub_sec->size += htab->sfpr->size; | |
| 13057 | } | |
| 13058 | ||
| aa8a7074 AM |
13059 | if (htab->relbrlt != NULL) |
| 13060 | htab->relbrlt->reloc_count = 0; | |
| 13061 | ||
| e7d1c40c AM |
13062 | if (htab->params->plt_stub_align != 0) |
| 13063 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
13064 | stub_sec != NULL; |
| 13065 | stub_sec = stub_sec->next) | |
| 13066 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
13067 | stub_sec->size = ((stub_sec->size |
| 13068 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13069 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13070 | |
| e7d1c40c | 13071 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13072 | stub_sec != NULL; |
| 13073 | stub_sec = stub_sec->next) | |
| e717da7e AM |
13074 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 13075 | { | |
| 13076 | stub_sec_count += 1; | |
| eea6121a | 13077 | if (stub_sec->rawsize != stub_sec->size) |
| e717da7e AM |
13078 | break; |
| 13079 | } | |
| 5d1634d7 | 13080 | |
| da44f4e5 AM |
13081 | /* Note that the glink_eh_frame check here is not only testing that |
| 13082 | the generated size matched the calculated size but also that | |
| 13083 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 13084 | if (stub_sec != NULL |
| 58d180e8 AM |
13085 | || (htab->glink_eh_frame != NULL |
| 13086 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13087 | { |
| b34976b6 | 13088 | htab->stub_error = TRUE; |
| 8de848d8 | 13089 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13090 | } |
| 721956f4 | 13091 | |
| d2a300cf AM |
13092 | if (htab->stub_error) |
| 13093 | return FALSE; | |
| 13094 | ||
| 13095 | if (stats != NULL) | |
| 13096 | { | |
| 13097 | *stats = bfd_malloc (500); | |
| 13098 | if (*stats == NULL) | |
| 13099 | return FALSE; | |
| 13100 | ||
| ee75fd95 | 13101 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13102 | " branch %lu\n" |
| 13103 | " toc adjust %lu\n" | |
| 13104 | " long branch %lu\n" | |
| 13105 | " long toc adj %lu\n" | |
| 794e51c0 | 13106 | " plt call %lu\n" |
| 7341d5e2 AM |
13107 | " plt call toc %lu\n" |
| 13108 | " global entry %lu"), | |
| e717da7e | 13109 | stub_sec_count, |
| ee75fd95 | 13110 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13111 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13112 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13113 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13114 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13115 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13116 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13117 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13118 | } |
| 13119 | return TRUE; | |
| 5bd4f169 AM |
13120 | } |
| 13121 | ||
| 99877b66 AM |
13122 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 13123 | ||
| 13124 | static bfd_boolean | |
| 13125 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 13126 | { | |
| 13127 | struct ppc_link_hash_entry *eh; | |
| 13128 | ||
| 13129 | if (h->root.type == bfd_link_hash_indirect) | |
| 13130 | return TRUE; | |
| 13131 | ||
| 99877b66 AM |
13132 | eh = (struct ppc_link_hash_entry *) h; |
| 13133 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 13134 | return TRUE; | |
| 13135 | ||
| 13136 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 13137 | return TRUE; | |
| 13138 | } | |
| 13139 | ||
| 13140 | void | |
| 13141 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 13142 | { | |
| 13143 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
13144 | |
| 13145 | if (htab != NULL) | |
| 13146 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
13147 | } |
| 13148 | ||
| 60124e18 AM |
13149 | /* What to do when ld finds relocations against symbols defined in |
| 13150 | discarded sections. */ | |
| 13151 | ||
| 13152 | static unsigned int | |
| 13153 | ppc64_elf_action_discarded (asection *sec) | |
| 13154 | { | |
| 13155 | if (strcmp (".opd", sec->name) == 0) | |
| 13156 | return 0; | |
| 13157 | ||
| 13158 | if (strcmp (".toc", sec->name) == 0) | |
| 13159 | return 0; | |
| 13160 | ||
| bce50a28 JJ |
13161 | if (strcmp (".toc1", sec->name) == 0) |
| 13162 | return 0; | |
| 13163 | ||
| 60124e18 AM |
13164 | return _bfd_elf_default_action_discarded (sec); |
| 13165 | } | |
| 13166 | ||
| 5bd4f169 AM |
13167 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13168 | to handle the relocations for a section. | |
| 13169 | ||
| 13170 | The relocs are always passed as Rela structures; if the section | |
| 13171 | actually uses Rel structures, the r_addend field will always be | |
| 13172 | zero. | |
| 13173 | ||
| 13174 | This function is responsible for adjust the section contents as | |
| 13175 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13176 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13177 | necessary. |
| 13178 | ||
| 13179 | This function does not have to worry about setting the reloc | |
| 13180 | address or the reloc symbol index. | |
| 13181 | ||
| 13182 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13183 | ||
| 13184 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13185 | corresponding to the st_shndx field of each local symbol. | |
| 13186 | ||
| 13187 | The global hash table entry for the global symbols can be found | |
| 13188 | via elf_sym_hashes (input_bfd). | |
| 13189 | ||
| 1049f94e | 13190 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13191 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13192 | going to be the section symbol corresponding to the output | |
| 13193 | section, which means that the addend must be adjusted | |
| 13194 | accordingly. */ | |
| 13195 | ||
| b34976b6 | 13196 | static bfd_boolean |
| 4ce794b7 AM |
13197 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13198 | struct bfd_link_info *info, | |
| 13199 | bfd *input_bfd, | |
| 13200 | asection *input_section, | |
| 13201 | bfd_byte *contents, | |
| 13202 | Elf_Internal_Rela *relocs, | |
| 13203 | Elf_Internal_Sym *local_syms, | |
| 13204 | asection **local_sections) | |
| 5bd4f169 | 13205 | { |
| 65f38f15 | 13206 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13207 | Elf_Internal_Shdr *symtab_hdr; |
| 13208 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13209 | Elf_Internal_Rela *rel; |
| c316a17c | 13210 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13211 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13212 | Elf_Internal_Rela outrel; |
| 13213 | bfd_byte *loc; | |
| 411e1bfb | 13214 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13215 | bfd_vma TOCstart; |
| b34976b6 AM |
13216 | bfd_boolean ret = TRUE; |
| 13217 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13218 | /* Assume 'at' branch hints. */ |
| 13219 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 13220 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 13221 | |
| 65f38f15 | 13222 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13223 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13224 | ppc_howto_init (); |
| 13225 | ||
| 65f38f15 | 13226 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13227 | if (htab == NULL) |
| 13228 | return FALSE; | |
| ee75fd95 AM |
13229 | |
| 13230 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13231 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13232 | return TRUE; |
| 13233 | ||
| 0c8d6e5c | 13234 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13235 | |
| 411e1bfb | 13236 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13237 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13238 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13239 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13240 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13241 | |
| c316a17c | 13242 | rel = wrel = relocs; |
| 5bd4f169 | 13243 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13244 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13245 | { |
| 04c9666a | 13246 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13247 | bfd_vma addend; |
| 5bd4f169 AM |
13248 | bfd_reloc_status_type r; |
| 13249 | Elf_Internal_Sym *sym; | |
| 13250 | asection *sec; | |
| 039b3fef AM |
13251 | struct elf_link_hash_entry *h_elf; |
| 13252 | struct ppc_link_hash_entry *h; | |
| 13253 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13254 | const char *sym_name; |
| 0d4792f7 | 13255 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13256 | bfd_vma toc_addend; |
| f961d9dd AM |
13257 | unsigned char tls_mask, tls_gd, tls_type; |
| 13258 | unsigned char sym_type; | |
| 5bd4f169 | 13259 | bfd_vma relocation; |
| b34976b6 AM |
13260 | bfd_boolean unresolved_reloc; |
| 13261 | bfd_boolean warned; | |
| bc30df16 | 13262 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13263 | unsigned int insn; |
| e11840f9 | 13264 | unsigned int mask; |
| 721956f4 AM |
13265 | struct ppc_stub_hash_entry *stub_entry; |
| 13266 | bfd_vma max_br_offset; | |
| 13267 | bfd_vma from; | |
| c316a17c | 13268 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13269 | reloc_howto_type *howto; |
| 13270 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13271 | |
| c316a17c AM |
13272 | again: |
| 13273 | orig_rel = *rel; | |
| 13274 | ||
| 4ce794b7 | 13275 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13276 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13277 | |
| 13278 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13279 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13280 | proper TOC base to use. */ | |
| 13281 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13282 | && wrel != relocs |
| 13283 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13284 | && is_opd) |
| c316a17c | 13285 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13286 | |
| 4ce794b7 AM |
13287 | sym = NULL; |
| 13288 | sec = NULL; | |
| 039b3fef | 13289 | h_elf = NULL; |
| 4ce794b7 | 13290 | sym_name = NULL; |
| b34976b6 AM |
13291 | unresolved_reloc = FALSE; |
| 13292 | warned = FALSE; | |
| 65f38f15 | 13293 | |
| 0b13192e | 13294 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13295 | { |
| 13296 | /* It's a local symbol. */ | |
| 74f0fb50 | 13297 | struct _opd_sec_data *opd; |
| 4025353c | 13298 | |
| 5bd4f169 AM |
13299 | sym = local_syms + r_symndx; |
| 13300 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13301 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13302 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13303 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13304 | opd = get_opd_info (sec); |
| 13305 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13306 | { |
| 51aecdc5 AM |
13307 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13308 | + rel->r_addend)]; | |
| 4025353c AM |
13309 | if (adjust == -1) |
| 13310 | relocation = 0; | |
| 13311 | else | |
| 4cc603a5 AM |
13312 | { |
| 13313 | /* If this is a relocation against the opd section sym | |
| 13314 | and we have edited .opd, adjust the reloc addend so | |
| 13315 | that ld -r and ld --emit-relocs output is correct. | |
| 13316 | If it is a reloc against some other .opd symbol, | |
| 13317 | then the symbol value will be adjusted later. */ | |
| 13318 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13319 | rel->r_addend += adjust; | |
| 13320 | else | |
| 13321 | relocation += adjust; | |
| 13322 | } | |
| 1e2f5b6e | 13323 | } |
| 5bd4f169 AM |
13324 | } |
| 13325 | else | |
| 13326 | { | |
| 62d887d4 L |
13327 | bfd_boolean ignored; |
| 13328 | ||
| b2a8e766 AM |
13329 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13330 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13331 | h_elf, sec, relocation, |
| 62d887d4 | 13332 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13333 | sym_name = h_elf->root.root.string; |
| 13334 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13335 | if (sec != NULL |
| 13336 | && sec->owner == output_bfd | |
| 13337 | && strcmp (sec->name, ".opd") == 0) | |
| 13338 | { | |
| 13339 | /* This is a symbol defined in a linker script. All | |
| 13340 | such are defined in output sections, even those | |
| 13341 | defined by simple assignment from a symbol defined in | |
| 13342 | an input section. Transfer the symbol to an | |
| 13343 | appropriate input .opd section, so that a branch to | |
| 13344 | this symbol will be mapped to the location specified | |
| 13345 | by the opd entry. */ | |
| 13346 | struct bfd_link_order *lo; | |
| 13347 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13348 | if (lo->type == bfd_indirect_link_order) | |
| 13349 | { | |
| 13350 | asection *isec = lo->u.indirect.section; | |
| 13351 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13352 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13353 | + isec->size)) | |
| 13354 | { | |
| 13355 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13356 | h_elf->root.u.def.section = isec; | |
| 13357 | sec = isec; | |
| 13358 | break; | |
| 13359 | } | |
| 13360 | } | |
| 13361 | } | |
| 5bd4f169 | 13362 | } |
| 039b3fef | 13363 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13364 | |
| dbaa2011 | 13365 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13366 | { |
| 13367 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13368 | input_bfd, input_section, | |
| 13369 | contents + rel->r_offset); | |
| 13370 | wrel->r_offset = rel->r_offset; | |
| 13371 | wrel->r_info = 0; | |
| 13372 | wrel->r_addend = 0; | |
| 13373 | ||
| 13374 | /* For ld -r, remove relocations in debug sections against | |
| 13375 | sections defined in discarded sections. Not done for | |
| 13376 | non-debug to preserve relocs in .eh_frame which the | |
| 13377 | eh_frame editing code expects to be present. */ | |
| 13378 | if (bfd_link_relocatable (info) | |
| 13379 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13380 | wrel--; | |
| 13381 | ||
| 13382 | continue; | |
| 13383 | } | |
| ab96bf03 | 13384 | |
| 0e1862bb | 13385 | if (bfd_link_relocatable (info)) |
| c316a17c | 13386 | goto copy_reloc; |
| ab96bf03 | 13387 | |
| f40da81b AM |
13388 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13389 | { | |
| 6f20ed8a | 13390 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13391 | sec = bfd_abs_section_ptr; |
| 13392 | unresolved_reloc = FALSE; | |
| 13393 | } | |
| 13394 | ||
| 951fd09b AM |
13395 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13396 | based on information we collected in tls_optimize. We edit | |
| 13397 | RELOCS so that --emit-relocs will output something sensible | |
| 13398 | for the final instruction stream. */ | |
| 13399 | tls_mask = 0; | |
| 13400 | tls_gd = 0; | |
| 0d4792f7 | 13401 | toc_symndx = 0; |
| 727fc41e AM |
13402 | if (h != NULL) |
| 13403 | tls_mask = h->tls_mask; | |
| 13404 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13405 | { |
| e054468f AM |
13406 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13407 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13408 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13409 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13410 | tls_mask = lgot_masks[r_symndx]; |
| 13411 | } | |
| 13412 | if (tls_mask == 0 | |
| 13413 | && (r_type == R_PPC64_TLS | |
| 13414 | || r_type == R_PPC64_TLSGD | |
| 13415 | || r_type == R_PPC64_TLSLD)) | |
| 13416 | { | |
| 13417 | /* Check for toc tls entries. */ | |
| f961d9dd | 13418 | unsigned char *toc_tls; |
| 0d4792f7 | 13419 | |
| 727fc41e AM |
13420 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13421 | &local_syms, rel, input_bfd)) | |
| 13422 | return FALSE; | |
| 0d4792f7 | 13423 | |
| 727fc41e AM |
13424 | if (toc_tls) |
| 13425 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13426 | } |
| 13427 | ||
| 13428 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13429 | relocs are used with non-tls syms. */ | |
| cf35638d | 13430 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13431 | && r_type != R_PPC64_NONE |
| 13432 | && (h == NULL | |
| 039b3fef AM |
13433 | || h->elf.root.type == bfd_link_hash_defined |
| 13434 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13435 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13436 | != (sym_type == STT_TLS | |
| 13437 | || (sym_type == STT_SECTION | |
| 13438 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13439 | { |
| 727fc41e AM |
13440 | if (tls_mask != 0 |
| 13441 | && (r_type == R_PPC64_TLS | |
| 13442 | || r_type == R_PPC64_TLSGD | |
| 13443 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13444 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13445 | ; | |
| 13446 | else | |
| 25f53a85 | 13447 | info->callbacks->einfo |
| 1d483afe | 13448 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
13449 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 13450 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 13451 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13452 | ppc64_elf_howto_table[r_type]->name, |
| 13453 | sym_name); | |
| 411e1bfb AM |
13454 | } |
| 13455 | ||
| 13456 | /* Ensure reloc mapping code below stays sane. */ | |
| 13457 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13458 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13459 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13460 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13461 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13462 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13463 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13464 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13465 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13466 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13467 | abort (); | |
| 0d4792f7 | 13468 | |
| 411e1bfb AM |
13469 | switch (r_type) |
| 13470 | { | |
| 13471 | default: | |
| 411e1bfb AM |
13472 | break; |
| 13473 | ||
| ba761f19 AM |
13474 | case R_PPC64_LO_DS_OPT: |
| 13475 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 13476 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 13477 | abort (); | |
| 13478 | insn += (14u << 26) - (58u << 26); | |
| 13479 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 13480 | r_type = R_PPC64_TOC16_LO; | |
| 13481 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13482 | break; | |
| 13483 | ||
| 411e1bfb AM |
13484 | case R_PPC64_TOC16: |
| 13485 | case R_PPC64_TOC16_LO: | |
| 13486 | case R_PPC64_TOC16_DS: | |
| 13487 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13488 | { |
| 13489 | /* Check for toc tls entries. */ | |
| f961d9dd | 13490 | unsigned char *toc_tls; |
| 951fd09b | 13491 | int retval; |
| 411e1bfb | 13492 | |
| 3a71aa26 AM |
13493 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13494 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13495 | if (retval == 0) |
| 411e1bfb AM |
13496 | return FALSE; |
| 13497 | ||
| 13498 | if (toc_tls) | |
| 13499 | { | |
| 951fd09b | 13500 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13501 | if (r_type == R_PPC64_TOC16_DS |
| 13502 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13503 | { |
| 13504 | if (tls_mask != 0 | |
| 13505 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13506 | goto toctprel; | |
| 13507 | } | |
| 411e1bfb | 13508 | else |
| 951fd09b AM |
13509 | { |
| 13510 | /* If we found a GD reloc pair, then we might be | |
| 13511 | doing a GD->IE transition. */ | |
| 13512 | if (retval == 2) | |
| 13513 | { | |
| 13514 | tls_gd = TLS_TPRELGD; | |
| 13515 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13516 | goto tls_ldgd_opt; |
| 951fd09b AM |
13517 | } |
| 13518 | else if (retval == 3) | |
| 13519 | { | |
| 13520 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13521 | goto tls_ldgd_opt; |
| 951fd09b AM |
13522 | } |
| 13523 | } | |
| 411e1bfb AM |
13524 | } |
| 13525 | } | |
| 13526 | break; | |
| 13527 | ||
| 9d6ded02 AM |
13528 | case R_PPC64_GOT_TPREL16_HI: |
| 13529 | case R_PPC64_GOT_TPREL16_HA: | |
| 13530 | if (tls_mask != 0 | |
| 13531 | && (tls_mask & TLS_TPREL) == 0) | |
| 13532 | { | |
| 13533 | rel->r_offset -= d_offset; | |
| 13534 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 13535 | r_type = R_PPC64_NONE; | |
| 13536 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13537 | } | |
| 13538 | break; | |
| 13539 | ||
| 411e1bfb AM |
13540 | case R_PPC64_GOT_TPREL16_DS: |
| 13541 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13542 | if (tls_mask != 0 |
| 13543 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13544 | { |
| 81407a69 | 13545 | toctprel: |
| c316a17c AM |
13546 | insn = bfd_get_32 (output_bfd, |
| 13547 | contents + rel->r_offset - d_offset); | |
| 411e1bfb AM |
13548 | insn &= 31 << 21; |
| 13549 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| c316a17c AM |
13550 | bfd_put_32 (output_bfd, insn, |
| 13551 | contents + rel->r_offset - d_offset); | |
| 411e1bfb | 13552 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13553 | if (toc_symndx != 0) |
| 13554 | { | |
| 13555 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13556 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13557 | /* We changed the symbol. Start over in order to |
| 13558 | get h, sym, sec etc. right. */ | |
| c316a17c | 13559 | goto again; |
| 0d4792f7 AM |
13560 | } |
| 13561 | else | |
| 13562 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13563 | } |
| 13564 | break; | |
| 13565 | ||
| 13566 | case R_PPC64_TLS: | |
| 951fd09b AM |
13567 | if (tls_mask != 0 |
| 13568 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13569 | { |
| 411e1bfb | 13570 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13571 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13572 | if (insn == 0) | |
| 411e1bfb | 13573 | abort (); |
| 411e1bfb | 13574 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13575 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13576 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13577 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13578 | r_type = R_PPC64_TPREL16_LO; |
| 13579 | if (toc_symndx != 0) | |
| 13580 | { | |
| 13581 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13582 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13583 | /* We changed the symbol. Start over in order to |
| 13584 | get h, sym, sec etc. right. */ | |
| c316a17c | 13585 | goto again; |
| 0d4792f7 AM |
13586 | } |
| 13587 | else | |
| 13588 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13589 | } |
| 13590 | break; | |
| 13591 | ||
| 411e1bfb AM |
13592 | case R_PPC64_GOT_TLSGD16_HI: |
| 13593 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13594 | tls_gd = TLS_TPRELGD; |
| 13595 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13596 | goto tls_gdld_hi; | |
| 13597 | break; | |
| 13598 | ||
| 411e1bfb AM |
13599 | case R_PPC64_GOT_TLSLD16_HI: |
| 13600 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13601 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13602 | { |
| 951fd09b AM |
13603 | tls_gdld_hi: |
| 13604 | if ((tls_mask & tls_gd) != 0) | |
| 13605 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13606 | + R_PPC64_GOT_TPREL16_DS); | |
| 13607 | else | |
| 411e1bfb | 13608 | { |
| 4fe5ca5b | 13609 | rel->r_offset -= d_offset; |
| 727ac201 | 13610 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13611 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13612 | } |
| 951fd09b | 13613 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13614 | } |
| 13615 | break; | |
| 13616 | ||
| 951fd09b AM |
13617 | case R_PPC64_GOT_TLSGD16: |
| 13618 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13619 | tls_gd = TLS_TPRELGD; | |
| 13620 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13621 | goto tls_ldgd_opt; |
| 951fd09b | 13622 | break; |
| 411e1bfb | 13623 | |
| 951fd09b AM |
13624 | case R_PPC64_GOT_TLSLD16: |
| 13625 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13626 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13627 | { | |
| 3a71aa26 | 13628 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13629 | bfd_vma offset; |
| 13630 | ||
| 13631 | tls_ldgd_opt: | |
| 727fc41e AM |
13632 | offset = (bfd_vma) -1; |
| 13633 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13634 | __tls_get_addr calls, we must trust that the call | |
| 13635 | stays with its arg setup insns, ie. that the next | |
| 13636 | reloc is the __tls_get_addr call associated with | |
| 13637 | the current reloc. Edit both insns. */ | |
| 13638 | if (input_section->has_tls_get_addr_call | |
| 13639 | && rel + 1 < relend | |
| 13640 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13641 | htab->tls_get_addr, | |
| 13642 | htab->tls_get_addr_fd)) | |
| 13643 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13644 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13645 | need to keep the destination reg. It may be | |
| 13646 | something other than the usual r3, and moved to r3 | |
| 13647 | before the call by intervening code. */ | |
| 13648 | insn1 = bfd_get_32 (output_bfd, | |
| 13649 | contents + rel->r_offset - d_offset); | |
| 102890f0 | 13650 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13651 | { |
| 102890f0 | 13652 | /* IE */ |
| b86ac8e3 | 13653 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13654 | insn1 |= 58 << 26; /* ld */ |
| 13655 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13656 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13657 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13658 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13659 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13660 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13661 | else |
| 102890f0 AM |
13662 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13663 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13664 | } | |
| 13665 | else | |
| 13666 | { | |
| 13667 | /* LE */ | |
| b86ac8e3 AM |
13668 | insn1 &= 0x1f << 21; |
| 13669 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13670 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13671 | if (tls_gd == 0) | |
| 951fd09b | 13672 | { |
| 102890f0 | 13673 | /* Was an LD reloc. */ |
| 1d483afe AM |
13674 | if (toc_symndx) |
| 13675 | sec = local_sections[toc_symndx]; | |
| 13676 | for (r_symndx = 0; | |
| 13677 | r_symndx < symtab_hdr->sh_info; | |
| 13678 | r_symndx++) | |
| 13679 | if (local_sections[r_symndx] == sec) | |
| 13680 | break; | |
| 13681 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13682 | r_symndx = STN_UNDEF; |
| 102890f0 | 13683 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13684 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13685 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13686 | + sec->output_offset | |
| 13687 | + sec->output_section->vma); | |
| 951fd09b | 13688 | } |
| 102890f0 | 13689 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13690 | { |
| 13691 | r_symndx = toc_symndx; | |
| 13692 | rel->r_addend = toc_addend; | |
| 13693 | } | |
| 102890f0 AM |
13694 | r_type = R_PPC64_TPREL16_HA; |
| 13695 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13696 | if (offset != (bfd_vma) -1) |
| 13697 | { | |
| 13698 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13699 | R_PPC64_TPREL16_LO); | |
| 13700 | rel[1].r_offset = offset + d_offset; | |
| 13701 | rel[1].r_addend = rel->r_addend; | |
| 13702 | } | |
| 102890f0 | 13703 | } |
| 3a71aa26 AM |
13704 | bfd_put_32 (output_bfd, insn1, |
| 13705 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13706 | if (offset != (bfd_vma) -1) |
| 13707 | { | |
| 13708 | insn3 = bfd_get_32 (output_bfd, | |
| 13709 | contents + offset + 4); | |
| 13710 | if (insn3 == NOP | |
| 13711 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13712 | { | |
| 13713 | rel[1].r_offset += 4; | |
| 13714 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13715 | insn2 = NOP; | |
| 13716 | } | |
| 13717 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13718 | } | |
| 13719 | if ((tls_mask & tls_gd) == 0 | |
| 13720 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13721 | { | |
| 13722 | /* We changed the symbol. Start over in order | |
| 13723 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13724 | goto again; |
| 727fc41e AM |
13725 | } |
| 13726 | } | |
| 13727 | break; | |
| 13728 | ||
| 13729 | case R_PPC64_TLSGD: | |
| 13730 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13731 | { | |
| 13732 | unsigned int insn2, insn3; | |
| 13733 | bfd_vma offset = rel->r_offset; | |
| 13734 | ||
| 13735 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13736 | { | |
| 13737 | /* IE */ | |
| 13738 | r_type = R_PPC64_NONE; | |
| 13739 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13740 | } | |
| 13741 | else | |
| 13742 | { | |
| 13743 | /* LE */ | |
| 13744 | if (toc_symndx != 0) | |
| 13745 | { | |
| 13746 | r_symndx = toc_symndx; | |
| 13747 | rel->r_addend = toc_addend; | |
| 13748 | } | |
| 13749 | r_type = R_PPC64_TPREL16_LO; | |
| 13750 | rel->r_offset = offset + d_offset; | |
| 13751 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13752 | } | |
| 13753 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13754 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13755 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13756 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13757 | insn3 = bfd_get_32 (output_bfd, |
| 13758 | contents + offset + 4); | |
| 102890f0 AM |
13759 | if (insn3 == NOP |
| 13760 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13761 | { | |
| 727fc41e | 13762 | rel->r_offset += 4; |
| 3a71aa26 AM |
13763 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13764 | insn2 = NOP; | |
| 102890f0 | 13765 | } |
| 102890f0 | 13766 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13767 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13768 | goto again; |
| 411e1bfb | 13769 | } |
| 411e1bfb AM |
13770 | break; |
| 13771 | ||
| 727fc41e AM |
13772 | case R_PPC64_TLSLD: |
| 13773 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13774 | { | |
| 13775 | unsigned int insn2, insn3; | |
| 13776 | bfd_vma offset = rel->r_offset; | |
| 13777 | ||
| 13778 | if (toc_symndx) | |
| 13779 | sec = local_sections[toc_symndx]; | |
| 13780 | for (r_symndx = 0; | |
| 13781 | r_symndx < symtab_hdr->sh_info; | |
| 13782 | r_symndx++) | |
| 13783 | if (local_sections[r_symndx] == sec) | |
| 13784 | break; | |
| 13785 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13786 | r_symndx = STN_UNDEF; |
| 727fc41e | 13787 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13788 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13789 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13790 | + sec->output_offset | |
| 13791 | + sec->output_section->vma); | |
| 13792 | ||
| 13793 | r_type = R_PPC64_TPREL16_LO; | |
| 13794 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13795 | rel->r_offset = offset + d_offset; | |
| 13796 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13797 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13798 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13799 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13800 | insn3 = bfd_get_32 (output_bfd, | |
| 13801 | contents + offset + 4); | |
| 13802 | if (insn3 == NOP | |
| 13803 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13804 | { | |
| 13805 | rel->r_offset += 4; | |
| 13806 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13807 | insn2 = NOP; | |
| 13808 | } | |
| 13809 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| c316a17c | 13810 | goto again; |
| 727fc41e AM |
13811 | } |
| 13812 | break; | |
| 13813 | ||
| 411e1bfb | 13814 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13815 | if (rel + 1 < relend |
| 13816 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13817 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13818 | { |
| 951fd09b AM |
13819 | if ((tls_mask & TLS_GD) == 0) |
| 13820 | { | |
| 13821 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13822 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13823 | r_type = R_PPC64_TPREL64; | |
| 13824 | else | |
| 13825 | { | |
| 4ce794b7 | 13826 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13827 | r_type = R_PPC64_NONE; |
| 13828 | } | |
| 13829 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13830 | } | |
| 13831 | } | |
| 13832 | else | |
| 13833 | { | |
| 13834 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13835 | { |
| 4ce794b7 | 13836 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13837 | r_type = R_PPC64_NONE; |
| 951fd09b | 13838 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13839 | } |
| 411e1bfb AM |
13840 | } |
| 13841 | break; | |
| 13842 | ||
| 13843 | case R_PPC64_TPREL64: | |
| 951fd09b | 13844 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13845 | { |
| 13846 | r_type = R_PPC64_NONE; | |
| 13847 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13848 | } | |
| 13849 | break; | |
| 52a82034 AM |
13850 | |
| 13851 | case R_PPC64_REL16_HA: | |
| 13852 | /* If we are generating a non-PIC executable, edit | |
| 13853 | . 0: addis 2,12,.TOC.-0b@ha | |
| 13854 | . addi 2,2,.TOC.-0b@l | |
| 13855 | used by ELFv2 global entry points to set up r2, to | |
| 13856 | . lis 2,.TOC.@ha | |
| 13857 | . addi 2,2,.TOC.@l | |
| 13858 | if .TOC. is in range. */ | |
| 0e1862bb | 13859 | if (!bfd_link_pic (info) |
| 810d4e75 | 13860 | && !info->traditional_format |
| 52a82034 AM |
13861 | && h != NULL && &h->elf == htab->elf.hgot |
| 13862 | && rel + 1 < relend | |
| 13863 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 13864 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13865 | && rel[1].r_addend == rel->r_addend + 4 | |
| 13866 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13867 | { | |
| 13868 | unsigned int insn1, insn2; | |
| 13869 | bfd_vma offset = rel->r_offset - d_offset; | |
| 13870 | insn1 = bfd_get_32 (output_bfd, contents + offset); | |
| 13871 | insn2 = bfd_get_32 (output_bfd, contents + offset + 4); | |
| 13872 | if ((insn1 & 0xffff0000) == 0x3c4c0000 /* addis 2,12 */ | |
| 13873 | && (insn2 & 0xffff0000) == 0x38420000 /* addi 2,2 */) | |
| 13874 | { | |
| 13875 | r_type = R_PPC64_ADDR16_HA; | |
| 13876 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13877 | rel->r_addend -= d_offset; | |
| 13878 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 13879 | rel[1].r_addend -= d_offset + 4; | |
| 13880 | bfd_put_32 (output_bfd, 0x3c400000, contents + offset); | |
| 13881 | } | |
| 13882 | } | |
| 13883 | break; | |
| 411e1bfb AM |
13884 | } |
| 13885 | ||
| 13886 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13887 | insn = 0; |
| b25116a9 AM |
13888 | max_br_offset = 1 << 25; |
| 13889 | addend = rel->r_addend; | |
| bc30df16 | 13890 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13891 | switch (r_type) |
| 5bd4f169 AM |
13892 | { |
| 13893 | default: | |
| 65f38f15 | 13894 | break; |
| 5bd4f169 | 13895 | |
| 3b421ab3 AM |
13896 | case R_PPC64_TOCSAVE: |
| 13897 | if (relocation + addend == (rel->r_offset | |
| 13898 | + input_section->output_offset | |
| 13899 | + input_section->output_section->vma) | |
| 13900 | && tocsave_find (htab, NO_INSERT, | |
| 13901 | &local_syms, rel, input_bfd)) | |
| 13902 | { | |
| 13903 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13904 | if (insn == NOP | |
| 13905 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
13906 | bfd_put_32 (input_bfd, |
| 13907 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
13908 | contents + rel->r_offset); |
| 13909 | } | |
| 13910 | break; | |
| 13911 | ||
| 65f38f15 AM |
13912 | /* Branch taken prediction relocations. */ |
| 13913 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13914 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13915 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13916 | /* Fall thru. */ | |
| 65f38f15 | 13917 | |
| 86c76c7b | 13918 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13919 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13920 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13921 | insn |= bfd_get_32 (output_bfd, |
| 13922 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13923 | /* Fall thru. */ |
| 86c76c7b | 13924 | |
| b25116a9 AM |
13925 | case R_PPC64_REL14: |
| 13926 | max_br_offset = 1 << 15; | |
| 13927 | /* Fall thru. */ | |
| 5bd4f169 | 13928 | |
| 65f38f15 | 13929 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
13930 | /* Calls to functions with a different TOC, such as calls to |
| 13931 | shared objects, need to alter the TOC pointer. This is | |
| 13932 | done using a linkage stub. A REL24 branching to these | |
| 13933 | linkage stubs needs to be followed by a nop, as the nop | |
| 13934 | will be replaced with an instruction to restore the TOC | |
| 13935 | base pointer. */ | |
| 8387904d | 13936 | fdh = h; |
| b31867b6 AM |
13937 | if (h != NULL |
| 13938 | && h->oh != NULL | |
| 13939 | && h->oh->is_func_descriptor) | |
| 13940 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
13941 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 13942 | htab); | |
| 6abec6bc | 13943 | if (stub_entry != NULL |
| ad8e1ba5 | 13944 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 13945 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
13946 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 13947 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 13948 | { |
| b25116a9 | 13949 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 13950 | |
| ba8ca3e7 AM |
13951 | /* All of these stubs will modify r2, so there must be a |
| 13952 | branch and link followed by a nop. The nop is | |
| 13953 | replaced by an insn to restore r2. */ | |
| eea6121a | 13954 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 13955 | { |
| ba8ca3e7 AM |
13956 | unsigned long br; |
| 13957 | ||
| 13958 | br = bfd_get_32 (input_bfd, | |
| 13959 | contents + rel->r_offset); | |
| 13960 | if ((br & 1) != 0) | |
| 41bd81ab | 13961 | { |
| ba8ca3e7 AM |
13962 | unsigned long nop; |
| 13963 | ||
| 13964 | nop = bfd_get_32 (input_bfd, | |
| 13965 | contents + rel->r_offset + 4); | |
| 13966 | if (nop == NOP | |
| 13967 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 13968 | { |
| ba8ca3e7 AM |
13969 | if (h != NULL |
| 13970 | && (h == htab->tls_get_addr_fd | |
| 13971 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 13972 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
13973 | { |
| 13974 | /* Special stub used, leave nop alone. */ | |
| 13975 | } | |
| 13976 | else | |
| a078d95a AM |
13977 | bfd_put_32 (input_bfd, |
| 13978 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
13979 | contents + rel->r_offset + 4); |
| 13980 | can_plt_call = TRUE; | |
| a7f2871e | 13981 | } |
| 41bd81ab | 13982 | } |
| 5bd4f169 | 13983 | } |
| 721956f4 | 13984 | |
| ba8ca3e7 | 13985 | if (!can_plt_call && h != NULL) |
| 721956f4 | 13986 | { |
| ba8ca3e7 AM |
13987 | const char *name = h->elf.root.root.string; |
| 13988 | ||
| 13989 | if (*name == '.') | |
| 13990 | ++name; | |
| 13991 | ||
| 13992 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 13993 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 13994 | { |
| ba8ca3e7 AM |
13995 | /* Allow crt1 branch to go via a toc adjusting |
| 13996 | stub. Other calls that never return could do | |
| 13997 | the same, if we could detect such. */ | |
| b25116a9 | 13998 | can_plt_call = TRUE; |
| 6ab189d5 | 13999 | } |
| ba8ca3e7 AM |
14000 | } |
| 14001 | ||
| 14002 | if (!can_plt_call) | |
| 14003 | { | |
| 14004 | /* g++ as of 20130507 emits self-calls without a | |
| 14005 | following nop. This is arguably wrong since we | |
| 14006 | have conflicting information. On the one hand a | |
| 14007 | global symbol and on the other a local call | |
| 14008 | sequence, but don't error for this special case. | |
| 14009 | It isn't possible to cheaply verify we have | |
| 14010 | exactly such a call. Allow all calls to the same | |
| 14011 | section. */ | |
| 14012 | asection *code_sec = sec; | |
| 14013 | ||
| 14014 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14015 | { |
| ba8ca3e7 AM |
14016 | bfd_vma off = (relocation + addend |
| 14017 | - sec->output_section->vma | |
| 14018 | - sec->output_offset); | |
| bc30df16 | 14019 | |
| ba8ca3e7 | 14020 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14021 | } |
| ba8ca3e7 AM |
14022 | if (code_sec == input_section) |
| 14023 | can_plt_call = TRUE; | |
| 14024 | } | |
| 14025 | ||
| 14026 | if (!can_plt_call) | |
| 14027 | { | |
| 4805fc55 AM |
14028 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14029 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14030 | info->callbacks->einfo | |
| 14031 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 14032 | "recompile with -fPIC\n"), | |
| 14033 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14034 | else | |
| 14035 | info->callbacks->einfo | |
| 14036 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 14037 | "(-mcmodel=small toc adjust stub)\n"), | |
| 14038 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14039 | |
| 14040 | bfd_set_error (bfd_error_bad_value); | |
| 14041 | ret = FALSE; | |
| 721956f4 AM |
14042 | } |
| 14043 | ||
| b25116a9 | 14044 | if (can_plt_call |
| 794e51c0 AM |
14045 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14046 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14047 | unresolved_reloc = FALSE; |
| 14048 | } | |
| 14049 | ||
| 6abec6bc AM |
14050 | if ((stub_entry == NULL |
| 14051 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14052 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14053 | && get_opd_info (sec) != NULL) |
| 14054 | { | |
| 14055 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14056 | bfd_vma off = (relocation + addend |
| 14057 | - sec->output_section->vma | |
| 14058 | - sec->output_offset); | |
| aef36ac1 | 14059 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14060 | if (dest != (bfd_vma) -1) |
| 14061 | { | |
| 14062 | relocation = dest; | |
| 14063 | addend = 0; | |
| bc30df16 | 14064 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14065 | } |
| 14066 | } | |
| 14067 | ||
| b25116a9 AM |
14068 | /* If the branch is out of reach we ought to have a long |
| 14069 | branch stub. */ | |
| 14070 | from = (rel->r_offset | |
| 14071 | + input_section->output_offset | |
| 14072 | + input_section->output_section->vma); | |
| 14073 | ||
| 6911b7dc AM |
14074 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14075 | ? fdh->elf.other | |
| 14076 | : sym->st_other); | |
| 14077 | ||
| 6abec6bc AM |
14078 | if (stub_entry != NULL |
| 14079 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14080 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14081 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14082 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14083 | || (relocation + addend - from + max_br_offset | |
| 14084 | < 2 * max_br_offset))) | |
| 14085 | /* Don't use the stub if this branch is in range. */ | |
| 14086 | stub_entry = NULL; | |
| b25116a9 AM |
14087 | |
| 14088 | if (stub_entry != NULL) | |
| 14089 | { | |
| 14090 | /* Munge up the value and addend so that we call the stub | |
| 14091 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14092 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14093 | ||
| 14094 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14095 | relocation += (stub_sec->output_offset | |
| 14096 | + stub_sec->output_section->vma | |
| 14097 | + stub_sec->size - htab->sfpr->size | |
| 14098 | - htab->sfpr->output_offset | |
| 14099 | - htab->sfpr->output_section->vma); | |
| 14100 | else | |
| 14101 | relocation = (stub_entry->stub_offset | |
| 14102 | + stub_sec->output_offset | |
| 14103 | + stub_sec->output_section->vma); | |
| b25116a9 | 14104 | addend = 0; |
| bc30df16 | 14105 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14106 | |
| 794e51c0 AM |
14107 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 14108 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14109 | && (ALWAYS_EMIT_R2SAVE | |
| 14110 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14111 | && rel + 1 < relend |
| 14112 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14113 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14114 | relocation += 4; | |
| b25116a9 AM |
14115 | } |
| 14116 | ||
| 14117 | if (insn != 0) | |
| 14118 | { | |
| 794e51c0 | 14119 | if (is_isa_v2) |
| 721956f4 | 14120 | { |
| b25116a9 AM |
14121 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14122 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14123 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14124 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14125 | insn |= 0x02 << 21; | |
| 14126 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14127 | insn |= 0x08 << 21; | |
| 14128 | else | |
| 14129 | break; | |
| 14130 | } | |
| 14131 | else | |
| 14132 | { | |
| 14133 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14134 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14135 | insn ^= 0x01 << 21; |
| 721956f4 | 14136 | } |
| b25116a9 AM |
14137 | |
| 14138 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 14139 | } |
| e86ce104 | 14140 | |
| 06da1e8e AM |
14141 | /* NOP out calls to undefined weak functions. |
| 14142 | We can thus call a weak function without first | |
| 14143 | checking whether the function is defined. */ | |
| b25116a9 | 14144 | else if (h != NULL |
| 039b3fef | 14145 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14146 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14147 | && r_type == R_PPC64_REL24 |
| 14148 | && relocation == 0 | |
| 4cc603a5 | 14149 | && addend == 0) |
| e86ce104 | 14150 | { |
| 06da1e8e | 14151 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14152 | goto copy_reloc; |
| e86ce104 | 14153 | } |
| 65f38f15 AM |
14154 | break; |
| 14155 | } | |
| 5bd4f169 | 14156 | |
| 65f38f15 | 14157 | /* Set `addend'. */ |
| 411e1bfb | 14158 | tls_type = 0; |
| 65f38f15 AM |
14159 | switch (r_type) |
| 14160 | { | |
| 14161 | default: | |
| 25f53a85 | 14162 | info->callbacks->einfo |
| bc30df16 | 14163 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14164 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14165 | |
| 65f38f15 | 14166 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14167 | ret = FALSE; |
| c316a17c | 14168 | goto copy_reloc; |
| 5bd4f169 | 14169 | |
| 65f38f15 | 14170 | case R_PPC64_NONE: |
| 411e1bfb | 14171 | case R_PPC64_TLS: |
| 727fc41e AM |
14172 | case R_PPC64_TLSGD: |
| 14173 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14174 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14175 | case R_PPC64_GNU_VTINHERIT: |
| 14176 | case R_PPC64_GNU_VTENTRY: | |
| c316a17c | 14177 | goto copy_reloc; |
| 5bd4f169 AM |
14178 | |
| 14179 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14180 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14181 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14182 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14183 | case R_PPC64_GOT_TLSGD16: |
| 14184 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14185 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14186 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14187 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14188 | goto dogot; |
| 14189 | ||
| 14190 | case R_PPC64_GOT_TLSLD16: | |
| 14191 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14192 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14193 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14194 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14195 | goto dogot; |
| 14196 | ||
| 14197 | case R_PPC64_GOT_TPREL16_DS: | |
| 14198 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14199 | case R_PPC64_GOT_TPREL16_HI: | |
| 14200 | case R_PPC64_GOT_TPREL16_HA: | |
| 14201 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14202 | goto dogot; | |
| 14203 | ||
| 14204 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14205 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14206 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14207 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14208 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14209 | goto dogot; | |
| 14210 | ||
| 65f38f15 AM |
14211 | case R_PPC64_GOT16: |
| 14212 | case R_PPC64_GOT16_LO: | |
| 14213 | case R_PPC64_GOT16_HI: | |
| 14214 | case R_PPC64_GOT16_HA: | |
| 14215 | case R_PPC64_GOT16_DS: | |
| 14216 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14217 | dogot: |
| 5bd4f169 AM |
14218 | { |
| 14219 | /* Relocation is to the entry for this symbol in the global | |
| 14220 | offset table. */ | |
| e717da7e | 14221 | asection *got; |
| d881513a | 14222 | bfd_vma *offp; |
| 5bd4f169 | 14223 | bfd_vma off; |
| d881513a | 14224 | unsigned long indx = 0; |
| 927be08e | 14225 | struct got_entry *ent; |
| 65f38f15 | 14226 | |
| d881513a AM |
14227 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14228 | && (h == NULL | |
| f5385ebf | 14229 | || !h->elf.def_dynamic)) |
| 927be08e | 14230 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14231 | else |
| 5bd4f169 | 14232 | { |
| 5bd4f169 | 14233 | |
| d881513a AM |
14234 | if (h != NULL) |
| 14235 | { | |
| 14236 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 0e1862bb | 14237 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), |
| 039b3fef | 14238 | &h->elf) |
| 0e1862bb | 14239 | || (bfd_link_pic (info) |
| afe397ea | 14240 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14241 | /* This is actually a static link, or it is a |
| 14242 | -Bsymbolic link and the symbol is defined | |
| 14243 | locally, or the symbol was forced to be local | |
| 14244 | because of a version file. */ | |
| 14245 | ; | |
| 14246 | else | |
| 14247 | { | |
| 14acf4dc | 14248 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14249 | indx = h->elf.dynindx; |
| d881513a AM |
14250 | unresolved_reloc = FALSE; |
| 14251 | } | |
| 039b3fef | 14252 | ent = h->elf.got.glist; |
| d881513a | 14253 | } |
| 411e1bfb | 14254 | else |
| 5bd4f169 | 14255 | { |
| d881513a AM |
14256 | if (local_got_ents == NULL) |
| 14257 | abort (); | |
| 14258 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14259 | } |
| d881513a AM |
14260 | |
| 14261 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14262 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14263 | && ent->owner == input_bfd |
| d881513a AM |
14264 | && ent->tls_type == tls_type) |
| 14265 | break; | |
| 5bd4f169 | 14266 | } |
| 411e1bfb | 14267 | |
| 927be08e AM |
14268 | if (ent == NULL) |
| 14269 | abort (); | |
| 14270 | if (ent->is_indirect) | |
| 14271 | ent = ent->got.ent; | |
| 14272 | offp = &ent->got.offset; | |
| 14273 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14274 | if (got == NULL) |
| 14275 | abort (); | |
| 14276 | ||
| 411e1bfb AM |
14277 | /* The offset must always be a multiple of 8. We use the |
| 14278 | least significant bit to record whether we have already | |
| 14279 | processed this entry. */ | |
| d881513a | 14280 | off = *offp; |
| 411e1bfb AM |
14281 | if ((off & 1) != 0) |
| 14282 | off &= ~1; | |
| 5bd4f169 AM |
14283 | else |
| 14284 | { | |
| 411e1bfb AM |
14285 | /* Generate relocs for the dynamic linker, except in |
| 14286 | the case of TLSLD where we'll use one entry per | |
| 14287 | module. */ | |
| 25f23106 AM |
14288 | asection *relgot; |
| 14289 | bfd_boolean ifunc; | |
| e717da7e | 14290 | |
| d881513a | 14291 | *offp = off | 1; |
| 25f23106 AM |
14292 | relgot = NULL; |
| 14293 | ifunc = (h != NULL | |
| 14294 | ? h->elf.type == STT_GNU_IFUNC | |
| 14295 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14296 | if (ifunc) |
| 33e44f2e | 14297 | relgot = htab->elf.irelplt; |
| 0e1862bb | 14298 | else if ((bfd_link_pic (info) || indx != 0) |
| 19e08130 AM |
14299 | && (h == NULL |
| 14300 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14301 | && !h->elf.def_dynamic) | |
| 14302 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14303 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14304 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14305 | if (relgot != NULL) |
| 5bd4f169 | 14306 | { |
| e717da7e AM |
14307 | outrel.r_offset = (got->output_section->vma |
| 14308 | + got->output_offset | |
| 411e1bfb | 14309 | + off); |
| 4cc603a5 | 14310 | outrel.r_addend = addend; |
| d881513a | 14311 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14312 | { |
| 411e1bfb | 14313 | outrel.r_addend = 0; |
| e515b051 | 14314 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14315 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14316 | { | |
| e717da7e AM |
14317 | loc = relgot->contents; |
| 14318 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14319 | * sizeof (Elf64_External_Rela)); |
| 14320 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14321 | &outrel, loc); | |
| e515b051 | 14322 | outrel.r_offset += 8; |
| 4cc603a5 | 14323 | outrel.r_addend = addend; |
| d881513a AM |
14324 | outrel.r_info |
| 14325 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14326 | } |
| 411e1bfb | 14327 | } |
| 951fd09b | 14328 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14329 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14330 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14331 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14332 | else if (indx != 0) |
| 14333 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14334 | else | |
| 81407a69 | 14335 | { |
| 25f23106 AM |
14336 | if (ifunc) |
| 14337 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14338 | else | |
| 14339 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14340 | |
| 14341 | /* Write the .got section contents for the sake | |
| 14342 | of prelink. */ | |
| e717da7e | 14343 | loc = got->contents + off; |
| 23fbd6fa JJ |
14344 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14345 | loc); | |
| 81407a69 | 14346 | } |
| 81407a69 AM |
14347 | |
| 14348 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14349 | { |
| 14350 | outrel.r_addend += relocation; | |
| 14351 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14352 | { |
| 14353 | if (htab->elf.tls_sec == NULL) | |
| 14354 | outrel.r_addend = 0; | |
| 14355 | else | |
| 14356 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14357 | } | |
| e515b051 | 14358 | } |
| e717da7e AM |
14359 | loc = relgot->contents; |
| 14360 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14361 | * sizeof (Elf64_External_Rela)); |
| 14362 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14363 | } | |
| 14364 | ||
| ad8e1ba5 | 14365 | /* Init the .got section contents here if we're not |
| 81407a69 | 14366 | emitting a reloc. */ |
| d881513a | 14367 | else |
| 411e1bfb | 14368 | { |
| 4cc603a5 | 14369 | relocation += addend; |
| 7b609f53 AM |
14370 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14371 | relocation = 1; | |
| 14372 | else if (tls_type != 0) | |
| 411e1bfb | 14373 | { |
| 989f9879 AM |
14374 | if (htab->elf.tls_sec == NULL) |
| 14375 | relocation = 0; | |
| 14376 | else | |
| 14377 | { | |
| 14378 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14379 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14380 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14381 | } | |
| 5bd4f169 | 14382 | |
| 7b609f53 AM |
14383 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14384 | { | |
| 14385 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14386 | got->contents + off + 8); |
| 7b609f53 AM |
14387 | relocation = 1; |
| 14388 | } | |
| 411e1bfb | 14389 | } |
| 7b609f53 | 14390 | |
| 411e1bfb | 14391 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14392 | got->contents + off); |
| 5bd4f169 AM |
14393 | } |
| 14394 | } | |
| 14395 | ||
| 65f38f15 AM |
14396 | if (off >= (bfd_vma) -2) |
| 14397 | abort (); | |
| 14398 | ||
| bf102f86 | 14399 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14400 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14401 | } |
| 65f38f15 AM |
14402 | break; |
| 14403 | ||
| 14404 | case R_PPC64_PLT16_HA: | |
| 14405 | case R_PPC64_PLT16_HI: | |
| 14406 | case R_PPC64_PLT16_LO: | |
| 14407 | case R_PPC64_PLT32: | |
| 14408 | case R_PPC64_PLT64: | |
| 14409 | /* Relocation is to the entry for this symbol in the | |
| 14410 | procedure linkage table. */ | |
| 14411 | ||
| 14412 | /* Resolve a PLT reloc against a local symbol directly, | |
| 14413 | without using the procedure linkage table. */ | |
| 14414 | if (h == NULL) | |
| 14415 | break; | |
| 14416 | ||
| 411e1bfb AM |
14417 | /* It's possible that we didn't make a PLT entry for this |
| 14418 | symbol. This happens when statically linking PIC code, | |
| 14419 | or when using -Bsymbolic. Go find a match if there is a | |
| 14420 | PLT entry. */ | |
| 33e44f2e | 14421 | if (htab->elf.splt != NULL) |
| 65f38f15 | 14422 | { |
| 411e1bfb | 14423 | struct plt_entry *ent; |
| 039b3fef | 14424 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
| a345bc8d AM |
14425 | if (ent->plt.offset != (bfd_vma) -1 |
| 14426 | && ent->addend == orig_rel.r_addend) | |
| 411e1bfb | 14427 | { |
| 33e44f2e AM |
14428 | relocation = (htab->elf.splt->output_section->vma |
| 14429 | + htab->elf.splt->output_offset | |
| 411e1bfb AM |
14430 | + ent->plt.offset); |
| 14431 | unresolved_reloc = FALSE; | |
| a345bc8d | 14432 | break; |
| 411e1bfb | 14433 | } |
| 65f38f15 | 14434 | } |
| 65f38f15 | 14435 | break; |
| 5bd4f169 | 14436 | |
| 0b13192e AM |
14437 | case R_PPC64_TOC: |
| 14438 | /* Relocation value is TOC base. */ | |
| 14439 | relocation = TOCstart; | |
| cf35638d | 14440 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14441 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14442 | else if (unresolved_reloc) |
| 14443 | ; | |
| 6f20ed8a AM |
14444 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14445 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14446 | else |
| 14447 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14448 | goto dodyn; |
| 0b13192e | 14449 | |
| 5bd4f169 AM |
14450 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14451 | which is the address of the start of the TOC plus 0x8000. | |
| 14452 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14453 | in this order. */ | |
| 65f38f15 AM |
14454 | case R_PPC64_TOC16: |
| 14455 | case R_PPC64_TOC16_LO: | |
| 14456 | case R_PPC64_TOC16_HI: | |
| 14457 | case R_PPC64_TOC16_DS: | |
| 14458 | case R_PPC64_TOC16_LO_DS: | |
| 14459 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14460 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14461 | break; |
| 14462 | ||
| 14463 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14464 | case R_PPC64_SECTOFF: |
| 14465 | case R_PPC64_SECTOFF_LO: | |
| 14466 | case R_PPC64_SECTOFF_HI: | |
| 14467 | case R_PPC64_SECTOFF_DS: | |
| 14468 | case R_PPC64_SECTOFF_LO_DS: | |
| 14469 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14470 | if (sec != NULL) |
| 65f38f15 | 14471 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14472 | break; |
| 14473 | ||
| 25f23106 AM |
14474 | case R_PPC64_REL16: |
| 14475 | case R_PPC64_REL16_LO: | |
| 14476 | case R_PPC64_REL16_HI: | |
| 14477 | case R_PPC64_REL16_HA: | |
| a680de9a | 14478 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14479 | break; |
| 14480 | ||
| 721956f4 AM |
14481 | case R_PPC64_REL14: |
| 14482 | case R_PPC64_REL14_BRNTAKEN: | |
| 14483 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14484 | case R_PPC64_REL24: |
| 14485 | break; | |
| 14486 | ||
| 411e1bfb AM |
14487 | case R_PPC64_TPREL16: |
| 14488 | case R_PPC64_TPREL16_LO: | |
| 14489 | case R_PPC64_TPREL16_HI: | |
| 14490 | case R_PPC64_TPREL16_HA: | |
| 14491 | case R_PPC64_TPREL16_DS: | |
| 14492 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14493 | case R_PPC64_TPREL16_HIGH: |
| 14494 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14495 | case R_PPC64_TPREL16_HIGHER: |
| 14496 | case R_PPC64_TPREL16_HIGHERA: | |
| 14497 | case R_PPC64_TPREL16_HIGHEST: | |
| 14498 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14499 | if (h != NULL |
| 14500 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14501 | && h->elf.dynindx == -1) | |
| 14502 | { | |
| 14503 | /* Make this relocation against an undefined weak symbol | |
| 14504 | resolve to zero. This is really just a tweak, since | |
| 14505 | code using weak externs ought to check that they are | |
| 14506 | defined before using them. */ | |
| 14507 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14508 | ||
| 14509 | insn = bfd_get_32 (output_bfd, p); | |
| 14510 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 14511 | if (insn != 0) | |
| 14512 | bfd_put_32 (output_bfd, insn, p); | |
| 14513 | break; | |
| 14514 | } | |
| 989f9879 AM |
14515 | if (htab->elf.tls_sec != NULL) |
| 14516 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 0e1862bb | 14517 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
14518 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14519 | libs as they will result in DT_TEXTREL being set, but | |
| 14520 | support them anyway. */ | |
| 14521 | goto dodyn; | |
| 14522 | break; | |
| 14523 | ||
| 14524 | case R_PPC64_DTPREL16: | |
| 14525 | case R_PPC64_DTPREL16_LO: | |
| 14526 | case R_PPC64_DTPREL16_HI: | |
| 14527 | case R_PPC64_DTPREL16_HA: | |
| 14528 | case R_PPC64_DTPREL16_DS: | |
| 14529 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14530 | case R_PPC64_DTPREL16_HIGH: |
| 14531 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14532 | case R_PPC64_DTPREL16_HIGHER: |
| 14533 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14534 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14535 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14536 | if (htab->elf.tls_sec != NULL) |
| 14537 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14538 | break; |
| 14539 | ||
| 45965137 AM |
14540 | case R_PPC64_ADDR64_LOCAL: |
| 14541 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14542 | ? h->elf.other | |
| 14543 | : sym->st_other); | |
| 14544 | break; | |
| 14545 | ||
| e515b051 AM |
14546 | case R_PPC64_DTPMOD64: |
| 14547 | relocation = 1; | |
| 14548 | addend = 0; | |
| 14549 | goto dodyn; | |
| 14550 | ||
| 411e1bfb | 14551 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14552 | if (htab->elf.tls_sec != NULL) |
| 14553 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14554 | goto dodyn; |
| 14555 | ||
| 14556 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14557 | if (htab->elf.tls_sec != NULL) |
| 14558 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14559 | /* Fall thru */ |
| 14560 | ||
| 65f38f15 AM |
14561 | /* Relocations that may need to be propagated if this is a |
| 14562 | dynamic object. */ | |
| 04c9666a | 14563 | case R_PPC64_REL30: |
| 65f38f15 AM |
14564 | case R_PPC64_REL32: |
| 14565 | case R_PPC64_REL64: | |
| 14566 | case R_PPC64_ADDR14: | |
| 14567 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14568 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14569 | case R_PPC64_ADDR16: | |
| 14570 | case R_PPC64_ADDR16_DS: | |
| 14571 | case R_PPC64_ADDR16_HA: | |
| 14572 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14573 | case R_PPC64_ADDR16_HIGH: |
| 14574 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14575 | case R_PPC64_ADDR16_HIGHER: |
| 14576 | case R_PPC64_ADDR16_HIGHERA: | |
| 14577 | case R_PPC64_ADDR16_HIGHEST: | |
| 14578 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14579 | case R_PPC64_ADDR16_LO: | |
| 14580 | case R_PPC64_ADDR16_LO_DS: | |
| 14581 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14582 | case R_PPC64_ADDR32: |
| 14583 | case R_PPC64_ADDR64: | |
| 14584 | case R_PPC64_UADDR16: | |
| 14585 | case R_PPC64_UADDR32: | |
| 14586 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14587 | dodyn: |
| 5d1634d7 | 14588 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14589 | break; |
| 14590 | ||
| 41bd81ab AM |
14591 | if (NO_OPD_RELOCS && is_opd) |
| 14592 | break; | |
| 14593 | ||
| 0e1862bb | 14594 | if ((bfd_link_pic (info) |
| 4e795f50 | 14595 | && (h == NULL |
| 039b3fef AM |
14596 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 14597 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 14598 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 14599 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 | 14600 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 14601 | && !bfd_link_pic (info) |
| 65f38f15 | 14602 | && h != NULL |
| 039b3fef | 14603 | && h->elf.dynindx != -1 |
| f5385ebf | 14604 | && !h->elf.non_got_ref |
| 25f23106 | 14605 | && !h->elf.def_regular) |
| 0e1862bb | 14606 | || (!bfd_link_pic (info) |
| 25f23106 AM |
14607 | && (h != NULL |
| 14608 | ? h->elf.type == STT_GNU_IFUNC | |
| 14609 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 14610 | { |
| b34976b6 | 14611 | bfd_boolean skip, relocate; |
| 65f38f15 | 14612 | asection *sreloc; |
| 1cf1f670 | 14613 | bfd_vma out_off; |
| 65f38f15 AM |
14614 | |
| 14615 | /* When generating a dynamic object, these relocations | |
| 14616 | are copied into the output file to be resolved at run | |
| 14617 | time. */ | |
| 14618 | ||
| b34976b6 AM |
14619 | skip = FALSE; |
| 14620 | relocate = FALSE; | |
| 65f38f15 | 14621 | |
| 1cf1f670 AM |
14622 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14623 | input_section, rel->r_offset); | |
| 14624 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14625 | skip = TRUE; |
| 1cf1f670 | 14626 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14627 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14628 | out_off += (input_section->output_section->vma |
| 14629 | + input_section->output_offset); | |
| 14630 | outrel.r_offset = out_off; | |
| 411e1bfb | 14631 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14632 | |
| 1cf1f670 AM |
14633 | /* Optimize unaligned reloc use. */ |
| 14634 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14635 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14636 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14637 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14638 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14639 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14640 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14641 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14642 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14643 | ||
| 65f38f15 | 14644 | if (skip) |
| 0bb2d96a | 14645 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14646 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14647 | && !is_opd |
| 14648 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14649 | { |
| 14650 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14651 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14652 | } | |
| 65f38f15 AM |
14653 | else |
| 14654 | { | |
| 41bd81ab AM |
14655 | /* This symbol is local, or marked to become local, |
| 14656 | or this is an opd section reloc which must point | |
| 14657 | at a local function. */ | |
| 65f38f15 | 14658 | outrel.r_addend += relocation; |
| e86ce104 | 14659 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14660 | { |
| 3fad3c7c | 14661 | if (is_opd && h != NULL) |
| afbe61cf AM |
14662 | { |
| 14663 | /* Lie about opd entries. This case occurs | |
| 14664 | when building shared libraries and we | |
| 14665 | reference a function in another shared | |
| 3fad3c7c AM |
14666 | lib. The same thing happens for a weak |
| 14667 | definition in an application that's | |
| 14668 | overridden by a strong definition in a | |
| 14669 | shared lib. (I believe this is a generic | |
| 14670 | bug in binutils handling of weak syms.) | |
| 14671 | In these cases we won't use the opd | |
| 1e2f5b6e | 14672 | entry in this lib. */ |
| b34976b6 | 14673 | unresolved_reloc = FALSE; |
| afbe61cf | 14674 | } |
| 25f23106 AM |
14675 | if (!is_opd |
| 14676 | && r_type == R_PPC64_ADDR64 | |
| 14677 | && (h != NULL | |
| 14678 | ? h->elf.type == STT_GNU_IFUNC | |
| 14679 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14680 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14681 | else | |
| 14682 | { | |
| 14683 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14684 | |
| 25f23106 AM |
14685 | /* We need to relocate .opd contents for ld.so. |
| 14686 | Prelink also wants simple and consistent rules | |
| 14687 | for relocs. This make all RELATIVE relocs have | |
| 14688 | *r_offset equal to r_addend. */ | |
| 14689 | relocate = TRUE; | |
| 14690 | } | |
| 65f38f15 AM |
14691 | } |
| 14692 | else | |
| 14693 | { | |
| 14694 | long indx = 0; | |
| 14695 | ||
| 25f23106 AM |
14696 | if (h != NULL |
| 14697 | ? h->elf.type == STT_GNU_IFUNC | |
| 14698 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14699 | { | |
| 25f53a85 | 14700 | info->callbacks->einfo |
| bc30df16 AM |
14701 | (_("%P: %H: %s for indirect " |
| 14702 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14703 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14704 | ppc64_elf_howto_table[r_type]->name, |
| 14705 | sym_name); | |
| 14706 | ret = FALSE; | |
| 14707 | } | |
| cf35638d | 14708 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14709 | ; |
| 14710 | else if (sec == NULL || sec->owner == NULL) | |
| 14711 | { | |
| 14712 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14713 | return FALSE; |
| 65f38f15 AM |
14714 | } |
| 14715 | else | |
| 14716 | { | |
| 14717 | asection *osec; | |
| 14718 | ||
| 14719 | osec = sec->output_section; | |
| 14720 | indx = elf_section_data (osec)->dynindx; | |
| 14721 | ||
| 74541ad4 AM |
14722 | if (indx == 0) |
| 14723 | { | |
| 14724 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14725 | && htab->elf.data_index_section != NULL) | |
| 14726 | osec = htab->elf.data_index_section; | |
| 14727 | else | |
| 14728 | osec = htab->elf.text_index_section; | |
| 14729 | indx = elf_section_data (osec)->dynindx; | |
| 14730 | } | |
| 14731 | BFD_ASSERT (indx != 0); | |
| 14732 | ||
| 65f38f15 AM |
14733 | /* We are turning this relocation into one |
| 14734 | against a section symbol, so subtract out | |
| 14735 | the output section's address but not the | |
| 14736 | offset of the input section in the output | |
| 14737 | section. */ | |
| 14738 | outrel.r_addend -= osec->vma; | |
| 14739 | } | |
| 14740 | ||
| 14741 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14742 | } | |
| 14743 | } | |
| 14744 | ||
| 14745 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14746 | if (h != NULL |
| 14747 | ? h->elf.type == STT_GNU_IFUNC | |
| 14748 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14749 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14750 | if (sreloc == NULL) |
| 14751 | abort (); | |
| 14752 | ||
| dfbb6ac9 AM |
14753 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14754 | >= sreloc->size) | |
| 14755 | abort (); | |
| 947216bf AM |
14756 | loc = sreloc->contents; |
| 14757 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14758 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14759 | ||
| 14760 | /* If this reloc is against an external symbol, it will | |
| 14761 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14762 | anything now. However, for the sake of prelink ensure |
| 14763 | that the section contents are a known value. */ | |
| 65f38f15 | 14764 | if (! relocate) |
| 81407a69 AM |
14765 | { |
| 14766 | unresolved_reloc = FALSE; | |
| 14767 | /* The value chosen here is quite arbitrary as ld.so | |
| 14768 | ignores section contents except for the special | |
| 14769 | case of .opd where the contents might be accessed | |
| 14770 | before relocation. Choose zero, as that won't | |
| 14771 | cause reloc overflow. */ | |
| 14772 | relocation = 0; | |
| 14773 | addend = 0; | |
| 14774 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14775 | to improve backward compatibility with older | |
| 14776 | versions of ld. */ | |
| 14777 | if (r_type == R_PPC64_ADDR64) | |
| 14778 | addend = outrel.r_addend; | |
| 14779 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14780 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14781 | addend = (input_section->output_section->vma |
| 14782 | + input_section->output_offset | |
| 14783 | + rel->r_offset); | |
| 81407a69 | 14784 | } |
| 65f38f15 | 14785 | } |
| 5bd4f169 AM |
14786 | break; |
| 14787 | ||
| 65f38f15 AM |
14788 | case R_PPC64_COPY: |
| 14789 | case R_PPC64_GLOB_DAT: | |
| 14790 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14791 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14792 | case R_PPC64_RELATIVE: |
| 14793 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14794 | files. */ | |
| ae9a127f | 14795 | /* Fall through. */ |
| 65f38f15 AM |
14796 | |
| 14797 | case R_PPC64_PLTGOT16: | |
| 14798 | case R_PPC64_PLTGOT16_DS: | |
| 14799 | case R_PPC64_PLTGOT16_HA: | |
| 14800 | case R_PPC64_PLTGOT16_HI: | |
| 14801 | case R_PPC64_PLTGOT16_LO: | |
| 14802 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14803 | case R_PPC64_PLTREL32: | |
| 14804 | case R_PPC64_PLTREL64: | |
| 14805 | /* These ones haven't been implemented yet. */ | |
| 14806 | ||
| 25f53a85 | 14807 | info->callbacks->einfo |
| bc30df16 | 14808 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14809 | input_bfd, |
| 4ce794b7 | 14810 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14811 | |
| 14812 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14813 | ret = FALSE; |
| c316a17c | 14814 | goto copy_reloc; |
| 65f38f15 | 14815 | } |
| 5bd4f169 | 14816 | |
| 67f0cbdb AM |
14817 | /* Multi-instruction sequences that access the TOC can be |
| 14818 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14819 | to nop; addi rb,r2,x; */ | |
| 14820 | switch (r_type) | |
| 14821 | { | |
| 14822 | default: | |
| 14823 | break; | |
| 14824 | ||
| 14825 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14826 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14827 | case R_PPC64_GOT_TPREL16_HI: | |
| 14828 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14829 | case R_PPC64_GOT16_HI: | |
| 14830 | case R_PPC64_TOC16_HI: | |
| 14831 | /* These relocs would only be useful if building up an | |
| 14832 | offset to later add to r2, perhaps in an indexed | |
| 14833 | addressing mode instruction. Don't try to optimize. | |
| 14834 | Unfortunately, the possibility of someone building up an | |
| 14835 | offset like this or even with the HA relocs, means that | |
| 14836 | we need to check the high insn when optimizing the low | |
| 14837 | insn. */ | |
| 14838 | break; | |
| 14839 | ||
| 14840 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14841 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14842 | case R_PPC64_GOT_TPREL16_HA: | |
| 14843 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14844 | case R_PPC64_GOT16_HA: | |
| 14845 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14846 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14847 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14848 | { |
| 14849 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14850 | bfd_put_32 (input_bfd, NOP, p); | |
| 14851 | } | |
| 67f0cbdb AM |
14852 | break; |
| 14853 | ||
| 14854 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14855 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14856 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14857 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14858 | case R_PPC64_GOT16_LO: | |
| 14859 | case R_PPC64_GOT16_LO_DS: | |
| 14860 | case R_PPC64_TOC16_LO: | |
| 14861 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14862 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14863 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14864 | { |
| 14865 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14866 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14867 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14868 | { | |
| 14869 | /* Transform addic to addi when we change reg. */ | |
| 14870 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14871 | insn |= (14u << 26) | (2 << 16); | |
| 14872 | } | |
| 14873 | else | |
| 67f0cbdb | 14874 | { |
| 98528052 AM |
14875 | insn &= ~(0x1f << 16); |
| 14876 | insn |= 2 << 16; | |
| 67f0cbdb | 14877 | } |
| 560c8763 | 14878 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14879 | } |
| 14880 | break; | |
| 14881 | } | |
| 14882 | ||
| 65f38f15 | 14883 | /* Do any further special processing. */ |
| b80eed39 | 14884 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
14885 | switch (r_type) |
| 14886 | { | |
| 14887 | default: | |
| 14888 | break; | |
| 14889 | ||
| 25f23106 | 14890 | case R_PPC64_REL16_HA: |
| a680de9a | 14891 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
14892 | case R_PPC64_ADDR16_HA: |
| 14893 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14894 | case R_PPC64_ADDR16_HIGHERA: |
| 14895 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14896 | case R_PPC64_TOC16_HA: |
| 14897 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14898 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14899 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14900 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14901 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14902 | case R_PPC64_DTPREL16_HA: |
| 14903 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14904 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14905 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14906 | /* It's just possible that this symbol is a weak symbol |
| 14907 | that's not actually defined anywhere. In that case, | |
| 14908 | 'sec' would be NULL, and we should leave the symbol | |
| 14909 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14910 | if (sec == NULL) |
| 14911 | break; | |
| 14912 | /* Fall thru */ | |
| 14913 | ||
| 14914 | case R_PPC64_GOT16_HA: | |
| 14915 | case R_PPC64_PLTGOT16_HA: | |
| 14916 | case R_PPC64_PLT16_HA: | |
| 14917 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14918 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14919 | case R_PPC64_GOT_TPREL16_HA: | |
| 14920 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14921 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 14922 | Bits 0:15 are not used. */ | |
| 14923 | addend += 0x8000; | |
| 65f38f15 AM |
14924 | break; |
| 14925 | ||
| 14926 | case R_PPC64_ADDR16_DS: | |
| 14927 | case R_PPC64_ADDR16_LO_DS: | |
| 14928 | case R_PPC64_GOT16_DS: | |
| 14929 | case R_PPC64_GOT16_LO_DS: | |
| 14930 | case R_PPC64_PLT16_LO_DS: | |
| 14931 | case R_PPC64_SECTOFF_DS: | |
| 14932 | case R_PPC64_SECTOFF_LO_DS: | |
| 14933 | case R_PPC64_TOC16_DS: | |
| 14934 | case R_PPC64_TOC16_LO_DS: | |
| 14935 | case R_PPC64_PLTGOT16_DS: | |
| 14936 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
14937 | case R_PPC64_GOT_TPREL16_DS: |
| 14938 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14939 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14940 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14941 | case R_PPC64_TPREL16_DS: | |
| 14942 | case R_PPC64_TPREL16_LO_DS: | |
| 14943 | case R_PPC64_DTPREL16_DS: | |
| 14944 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
14945 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 14946 | mask = 3; | |
| a680de9a PB |
14947 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 14948 | the value must be a multiple of 16. This is somewhat of | |
| 14949 | a hack, but the "correct" way to do this by defining _DQ | |
| 14950 | forms of all the _DS relocs bloats all reloc switches in | |
| 14951 | this file. It doesn't make much sense to use these | |
| 14952 | relocs in data, so testing the insn should be safe. */ | |
| 14953 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 14954 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 14955 | mask = 15; |
| a680de9a PB |
14956 | relocation += addend; |
| 14957 | addend = insn & (mask ^ 3); | |
| 14958 | if ((relocation & mask) != 0) | |
| 65f38f15 | 14959 | { |
| a680de9a | 14960 | relocation ^= relocation & mask; |
| 25f53a85 | 14961 | info->callbacks->einfo |
| 8de848d8 | 14962 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 14963 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14964 | howto->name, |
| adadcc0c | 14965 | mask + 1); |
| 65f38f15 | 14966 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14967 | ret = FALSE; |
| c316a17c | 14968 | goto copy_reloc; |
| 65f38f15 AM |
14969 | } |
| 14970 | break; | |
| 5bd4f169 AM |
14971 | } |
| 14972 | ||
| 239e1f3a AM |
14973 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 14974 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 14975 | not process them. */ | |
| 65f38f15 | 14976 | if (unresolved_reloc |
| 239e1f3a | 14977 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
14978 | && h->elf.def_dynamic) |
| 14979 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 14980 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 14981 | { |
| 25f53a85 | 14982 | info->callbacks->einfo |
| bc30df16 | 14983 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 14984 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14985 | howto->name, |
| 039b3fef | 14986 | h->elf.root.root.string); |
| b34976b6 | 14987 | ret = FALSE; |
| 9c07fe7c | 14988 | } |
| 5bd4f169 | 14989 | |
| b80eed39 AM |
14990 | /* 16-bit fields in insns mostly have signed values, but a |
| 14991 | few insns have 16-bit unsigned values. Really, we should | |
| 14992 | have different reloc types. */ | |
| 14993 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 14994 | && howto->dst_mask == 0xffff | |
| 14995 | && (input_section->flags & SEC_CODE) != 0) | |
| 14996 | { | |
| 14997 | enum complain_overflow complain = complain_overflow_signed; | |
| 14998 | ||
| 14999 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15000 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15001 | complain = complain_overflow_bitfield; | |
| 15002 | else if (howto->rightshift == 0 | |
| 15003 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15004 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15005 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15006 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15007 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15008 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15009 | complain = complain_overflow_unsigned; |
| 15010 | if (howto->complain_on_overflow != complain) | |
| 15011 | { | |
| 15012 | alt_howto = *howto; | |
| 15013 | alt_howto.complain_on_overflow = complain; | |
| 15014 | howto = &alt_howto; | |
| 15015 | } | |
| 15016 | } | |
| 15017 | ||
| a680de9a PB |
15018 | if (r_type == R_PPC64_REL16DX_HA) |
| 15019 | { | |
| 15020 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15021 | if (rel->r_offset + 4 > input_section->size) | |
| 15022 | r = bfd_reloc_outofrange; | |
| 15023 | else | |
| 15024 | { | |
| 15025 | relocation += addend; | |
| 15026 | relocation -= (rel->r_offset | |
| 15027 | + input_section->output_offset | |
| 15028 | + input_section->output_section->vma); | |
| 15029 | relocation = (bfd_signed_vma) relocation >> 16; | |
| 15030 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 15031 | insn &= ~0x1fffc1; | |
| 15032 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
| 15033 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
| 15034 | r = bfd_reloc_ok; | |
| 15035 | if (relocation + 0x8000 > 0xffff) | |
| 15036 | r = bfd_reloc_overflow; | |
| 15037 | } | |
| 15038 | } | |
| 15039 | else | |
| 15040 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15041 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15042 | |
| ef60b7ff | 15043 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15044 | { |
| bc30df16 | 15045 | char *more_info = NULL; |
| b80eed39 | 15046 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15047 | |
| 15048 | if (reloc_dest != DEST_NORMAL) | |
| 15049 | { | |
| 15050 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15051 | if (more_info != NULL) | |
| 15052 | { | |
| 15053 | strcpy (more_info, reloc_name); | |
| 15054 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15055 | ? " (OPD)" : " (stub)")); | |
| 15056 | reloc_name = more_info; | |
| 15057 | } | |
| 15058 | } | |
| 15059 | ||
| cd27b276 | 15060 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15061 | { |
| 8131c122 AM |
15062 | /* On code like "if (foo) foo();" don't report overflow |
| 15063 | on a branch to zero when foo is undefined. */ | |
| 15064 | if (!warned | |
| 15065 | && (reloc_dest == DEST_STUB | |
| 15066 | || !(h != NULL | |
| 15067 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15068 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15069 | && is_branch_reloc (r_type)))) | |
| 5bd4f169 | 15070 | { |
| 8131c122 AM |
15071 | if (!((*info->callbacks->reloc_overflow) |
| 15072 | (info, &h->elf.root, sym_name, | |
| 15073 | reloc_name, orig_rel.r_addend, | |
| 15074 | input_bfd, input_section, rel->r_offset))) | |
| 15075 | return FALSE; | |
| 5bd4f169 | 15076 | } |
| ef60b7ff AM |
15077 | } |
| 15078 | else | |
| 15079 | { | |
| 25f53a85 | 15080 | info->callbacks->einfo |
| bc30df16 | 15081 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 15082 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15083 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15084 | ret = FALSE; |
| ef60b7ff | 15085 | } |
| bc30df16 AM |
15086 | if (more_info != NULL) |
| 15087 | free (more_info); | |
| 5bd4f169 | 15088 | } |
| c316a17c AM |
15089 | copy_reloc: |
| 15090 | if (wrel != rel) | |
| 15091 | *wrel = *rel; | |
| 15092 | } | |
| 15093 | ||
| 15094 | if (wrel != rel) | |
| 15095 | { | |
| 15096 | Elf_Internal_Shdr *rel_hdr; | |
| 15097 | size_t deleted = rel - wrel; | |
| 15098 | ||
| 15099 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15100 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15101 | if (rel_hdr->sh_size == 0) | |
| 15102 | { | |
| 15103 | /* It is too late to remove an empty reloc section. Leave | |
| 15104 | one NONE reloc. | |
| 15105 | ??? What is wrong with an empty section??? */ | |
| 15106 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15107 | deleted -= 1; | |
| 15108 | } | |
| 15109 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15110 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15111 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15112 | } |
| 15113 | ||
| 645ea6a9 AM |
15114 | /* If we're emitting relocations, then shortly after this function |
| 15115 | returns, reloc offsets and addends for this section will be | |
| 15116 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15117 | file rather than the input. Save a copy of the relocs for |
| 15118 | opd_entry_value. */ | |
| 0e1862bb | 15119 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15120 | { |
| 15121 | bfd_size_type amt; | |
| 15122 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15123 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15124 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15125 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15126 | if (rel == NULL) |
| 15127 | return FALSE; | |
| 15128 | memcpy (rel, relocs, amt); | |
| 15129 | } | |
| 5bd4f169 AM |
15130 | return ret; |
| 15131 | } | |
| 15132 | ||
| 754021d0 AM |
15133 | /* Adjust the value of any local symbols in opd sections. */ |
| 15134 | ||
| 6e0b88f1 | 15135 | static int |
| 754021d0 AM |
15136 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15137 | const char *name ATTRIBUTE_UNUSED, | |
| 15138 | Elf_Internal_Sym *elfsym, | |
| 15139 | asection *input_sec, | |
| 15140 | struct elf_link_hash_entry *h) | |
| 15141 | { | |
| 74f0fb50 AM |
15142 | struct _opd_sec_data *opd; |
| 15143 | long adjust; | |
| 754021d0 AM |
15144 | bfd_vma value; |
| 15145 | ||
| 4025353c | 15146 | if (h != NULL) |
| 6e0b88f1 | 15147 | return 1; |
| 4025353c | 15148 | |
| 74f0fb50 AM |
15149 | opd = get_opd_info (input_sec); |
| 15150 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15151 | return 1; |
| 754021d0 AM |
15152 | |
| 15153 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15154 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15155 | value -= input_sec->output_section->vma; |
| 15156 | ||
| 51aecdc5 | 15157 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15158 | if (adjust == -1) |
| 6e0b88f1 AM |
15159 | return 2; |
| 15160 | ||
| 15161 | elfsym->st_value += adjust; | |
| 15162 | return 1; | |
| 754021d0 AM |
15163 | } |
| 15164 | ||
| 5bd4f169 AM |
15165 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15166 | dynamic sections here. */ | |
| 15167 | ||
| b34976b6 | 15168 | static bfd_boolean |
| 4ce794b7 AM |
15169 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15170 | struct bfd_link_info *info, | |
| 15171 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 15172 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 15173 | { |
| 65f38f15 | 15174 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15175 | struct plt_entry *ent; |
| 15176 | Elf_Internal_Rela rela; | |
| 15177 | bfd_byte *loc; | |
| 5bd4f169 | 15178 | |
| 65f38f15 | 15179 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15180 | if (htab == NULL) |
| 15181 | return FALSE; | |
| 5bd4f169 | 15182 | |
| 8387904d AM |
15183 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15184 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15185 | { | |
| 15186 | /* This symbol has an entry in the procedure linkage | |
| 15187 | table. Set it up. */ | |
| e054468f AM |
15188 | if (!htab->elf.dynamic_sections_created |
| 15189 | || h->dynindx == -1) | |
| 15190 | { | |
| 15191 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15192 | && h->def_regular | |
| 15193 | && (h->root.type == bfd_link_hash_defined | |
| 15194 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15195 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15196 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15197 | + ent->plt.offset); |
| ee67d69a AM |
15198 | if (htab->opd_abi) |
| 15199 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15200 | else | |
| 15201 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15202 | rela.r_addend = (h->root.u.def.value |
| 15203 | + h->root.u.def.section->output_offset | |
| 15204 | + h->root.u.def.section->output_section->vma | |
| 15205 | + ent->addend); | |
| 33e44f2e AM |
15206 | loc = (htab->elf.irelplt->contents |
| 15207 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15208 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
15209 | } |
| 15210 | else | |
| 15211 | { | |
| 33e44f2e AM |
15212 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15213 | + htab->elf.splt->output_offset | |
| 25f23106 | 15214 | + ent->plt.offset); |
| e054468f AM |
15215 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15216 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15217 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15218 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15219 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 15220 | } |
| 8387904d | 15221 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15222 | |
| 15223 | if (!htab->opd_abi) | |
| 15224 | { | |
| 15225 | if (!h->def_regular) | |
| 15226 | { | |
| 15227 | /* Mark the symbol as undefined, rather than as | |
| 15228 | defined in glink. Leave the value if there were | |
| 15229 | any relocations where pointer equality matters | |
| 15230 | (this is a clue for the dynamic linker, to make | |
| 15231 | function pointer comparisons work between an | |
| 15232 | application and shared library), otherwise set it | |
| 15233 | to zero. */ | |
| 15234 | sym->st_shndx = SHN_UNDEF; | |
| 15235 | if (!h->pointer_equality_needed) | |
| 15236 | sym->st_value = 0; | |
| 15237 | else if (!h->ref_regular_nonweak) | |
| 15238 | { | |
| 15239 | /* This breaks function pointer comparisons, but | |
| 15240 | that is better than breaking tests for a NULL | |
| 15241 | function pointer. */ | |
| 15242 | sym->st_value = 0; | |
| 15243 | } | |
| 15244 | } | |
| 15245 | } | |
| 8387904d | 15246 | } |
| 5bd4f169 | 15247 | |
| f5385ebf | 15248 | if (h->needs_copy) |
| 5bd4f169 | 15249 | { |
| 65f38f15 | 15250 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15251 | |
| 65f38f15 AM |
15252 | if (h->dynindx == -1 |
| 15253 | || (h->root.type != bfd_link_hash_defined | |
| 15254 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15255 | || htab->relbss == NULL) |
| 65f38f15 | 15256 | abort (); |
| 5bd4f169 AM |
15257 | |
| 15258 | rela.r_offset = (h->root.u.def.value | |
| 15259 | + h->root.u.def.section->output_section->vma | |
| 15260 | + h->root.u.def.section->output_offset); | |
| 15261 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15262 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15263 | loc = htab->relbss->contents; |
| 15264 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15265 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15266 | } |
| 15267 | ||
| b34976b6 | 15268 | return TRUE; |
| 5bd4f169 AM |
15269 | } |
| 15270 | ||
| 65f38f15 AM |
15271 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15272 | dynamic linker, before writing them out. */ | |
| 15273 | ||
| 15274 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15275 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15276 | const asection *rel_sec, | |
| 15277 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15278 | { |
| 04c9666a | 15279 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15280 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15281 | ||
| 33e44f2e | 15282 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15283 | return reloc_class_ifunc; |
| a33d1f77 | 15284 | |
| 4ce794b7 | 15285 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15286 | switch (r_type) |
| 65f38f15 AM |
15287 | { |
| 15288 | case R_PPC64_RELATIVE: | |
| 15289 | return reloc_class_relative; | |
| 15290 | case R_PPC64_JMP_SLOT: | |
| 15291 | return reloc_class_plt; | |
| 15292 | case R_PPC64_COPY: | |
| 15293 | return reloc_class_copy; | |
| 15294 | default: | |
| 15295 | return reloc_class_normal; | |
| 15296 | } | |
| 15297 | } | |
| 15298 | ||
| 5bd4f169 AM |
15299 | /* Finish up the dynamic sections. */ |
| 15300 | ||
| b34976b6 | 15301 | static bfd_boolean |
| 4ce794b7 AM |
15302 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15303 | struct bfd_link_info *info) | |
| 5bd4f169 | 15304 | { |
| 65f38f15 AM |
15305 | struct ppc_link_hash_table *htab; |
| 15306 | bfd *dynobj; | |
| 5bd4f169 | 15307 | asection *sdyn; |
| 5bd4f169 | 15308 | |
| 65f38f15 | 15309 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15310 | if (htab == NULL) |
| 15311 | return FALSE; | |
| 15312 | ||
| 65f38f15 | 15313 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15314 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15315 | |
| 65f38f15 | 15316 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15317 | { |
| 5bd4f169 AM |
15318 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15319 | ||
| 33e44f2e | 15320 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15321 | abort (); |
| 5bd4f169 AM |
15322 | |
| 15323 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15324 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15325 | for (; dyncon < dynconend; dyncon++) |
| 15326 | { | |
| 15327 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15328 | asection *s; |
| 5bd4f169 AM |
15329 | |
| 15330 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15331 | ||
| 15332 | switch (dyn.d_tag) | |
| 15333 | { | |
| 65f38f15 AM |
15334 | default: |
| 15335 | continue; | |
| 5bd4f169 | 15336 | |
| 5d1634d7 | 15337 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15338 | s = htab->glink; |
| 6348e046 | 15339 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15340 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15341 | of glink rather than the first entry point, which is | |
| 15342 | what ld.so needs, and now have a bigger stub to | |
| 15343 | support automatic multiple TOCs. */ | |
| b9e5796b | 15344 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15345 | break; |
| 15346 | ||
| 19397422 AM |
15347 | case DT_PPC64_OPD: |
| 15348 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15349 | if (s == NULL) |
| 15350 | continue; | |
| 15351 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15352 | break; |
| 15353 | ||
| e8910a83 AM |
15354 | case DT_PPC64_OPT: |
| 15355 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15356 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15357 | break; | |
| 15358 | ||
| 19397422 AM |
15359 | case DT_PPC64_OPDSZ: |
| 15360 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15361 | if (s == NULL) |
| 15362 | continue; | |
| eea6121a | 15363 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15364 | break; |
| 15365 | ||
| 65f38f15 | 15366 | case DT_PLTGOT: |
| 33e44f2e | 15367 | s = htab->elf.splt; |
| 6348e046 | 15368 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15369 | break; |
| 15370 | ||
| 15371 | case DT_JMPREL: | |
| 33e44f2e | 15372 | s = htab->elf.srelplt; |
| 6348e046 | 15373 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15374 | break; |
| 5bd4f169 | 15375 | |
| 65f38f15 | 15376 | case DT_PLTRELSZ: |
| 33e44f2e | 15377 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 AM |
15378 | break; |
| 15379 | ||
| 15380 | case DT_RELASZ: | |
| 15381 | /* Don't count procedure linkage table relocs in the | |
| 15382 | overall reloc count. */ | |
| 33e44f2e | 15383 | s = htab->elf.srelplt; |
| 6348e046 AM |
15384 | if (s == NULL) |
| 15385 | continue; | |
| eea6121a | 15386 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
15387 | break; |
| 15388 | ||
| 15389 | case DT_RELA: | |
| 15390 | /* We may not be using the standard ELF linker script. | |
| 15391 | If .rela.plt is the first .rela section, we adjust | |
| 15392 | DT_RELA to not include it. */ | |
| 33e44f2e | 15393 | s = htab->elf.srelplt; |
| 6348e046 AM |
15394 | if (s == NULL) |
| 15395 | continue; | |
| 15396 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 15397 | continue; | |
| eea6121a | 15398 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 15399 | break; |
| 5bd4f169 | 15400 | } |
| 5bd4f169 | 15401 | |
| 65f38f15 | 15402 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15403 | } |
| 5bd4f169 AM |
15404 | } |
| 15405 | ||
| 33e44f2e | 15406 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15407 | { |
| 15408 | /* Fill in the first entry in the global offset table. | |
| 15409 | We use it to hold the link-time TOCbase. */ | |
| 15410 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15411 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15412 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15413 | |
| 15414 | /* Set .got entry size. */ | |
| 33e44f2e | 15415 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15416 | } |
| 15417 | ||
| 33e44f2e | 15418 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15419 | { |
| 15420 | /* Set .plt entry size. */ | |
| 33e44f2e | 15421 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15422 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15423 | } |
| 15424 | ||
| 84f5d08e AM |
15425 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15426 | brlt ourselves if emitrelocations. */ | |
| 15427 | if (htab->brlt != NULL | |
| 15428 | && htab->brlt->reloc_count != 0 | |
| 15429 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15430 | htab->brlt, | |
| d4730f92 | 15431 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15432 | elf_section_data (htab->brlt)->relocs, |
| 15433 | NULL)) | |
| 15434 | return FALSE; | |
| 15435 | ||
| 176a0d42 AM |
15436 | if (htab->glink != NULL |
| 15437 | && htab->glink->reloc_count != 0 | |
| 15438 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15439 | htab->glink, | |
| d4730f92 | 15440 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15441 | elf_section_data (htab->glink)->relocs, |
| 15442 | NULL)) | |
| 15443 | return FALSE; | |
| 15444 | ||
| 58d180e8 | 15445 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15446 | && htab->glink_eh_frame->size != 0) |
| 15447 | { | |
| 15448 | bfd_vma val; | |
| 15449 | bfd_byte *p; | |
| 15450 | asection *stub_sec; | |
| 15451 | ||
| 15452 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15453 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15454 | stub_sec != NULL; | |
| 15455 | stub_sec = stub_sec->next) | |
| 15456 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15457 | { | |
| 15458 | /* FDE length. */ | |
| 15459 | p += 4; | |
| 15460 | /* CIE pointer. */ | |
| 15461 | p += 4; | |
| 15462 | /* Offset to stub section. */ | |
| 15463 | val = (stub_sec->output_section->vma | |
| 15464 | + stub_sec->output_offset); | |
| 15465 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15466 | + htab->glink_eh_frame->output_offset | |
| 15467 | + (p - htab->glink_eh_frame->contents)); | |
| 15468 | if (val + 0x80000000 > 0xffffffff) | |
| 15469 | { | |
| 15470 | info->callbacks->einfo | |
| 15471 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15472 | stub_sec->name); | |
| 15473 | return FALSE; | |
| 15474 | } | |
| 15475 | bfd_put_32 (dynobj, val, p); | |
| 15476 | p += 4; | |
| 15477 | /* stub section size. */ | |
| 15478 | p += 4; | |
| 15479 | /* Augmentation. */ | |
| 15480 | p += 1; | |
| 15481 | /* Pad. */ | |
| 15482 | p += 7; | |
| 15483 | } | |
| 15484 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15485 | { | |
| 15486 | /* FDE length. */ | |
| 15487 | p += 4; | |
| 15488 | /* CIE pointer. */ | |
| 15489 | p += 4; | |
| 15490 | /* Offset to .glink. */ | |
| 15491 | val = (htab->glink->output_section->vma | |
| 15492 | + htab->glink->output_offset | |
| 15493 | + 8); | |
| 15494 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15495 | + htab->glink_eh_frame->output_offset | |
| 15496 | + (p - htab->glink_eh_frame->contents)); | |
| 15497 | if (val + 0x80000000 > 0xffffffff) | |
| 15498 | { | |
| 15499 | info->callbacks->einfo | |
| 15500 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15501 | htab->glink->name); | |
| 15502 | return FALSE; | |
| 15503 | } | |
| 15504 | bfd_put_32 (dynobj, val, p); | |
| 15505 | p += 4; | |
| 15506 | /* .glink size. */ | |
| 15507 | p += 4; | |
| 15508 | /* Augmentation. */ | |
| 15509 | p += 1; | |
| 15510 | /* Ops. */ | |
| 15511 | p += 7; | |
| 15512 | } | |
| 15513 | ||
| 15514 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15515 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15516 | htab->glink_eh_frame, | |
| 15517 | htab->glink_eh_frame->contents)) | |
| 15518 | return FALSE; | |
| 15519 | } | |
| 58d180e8 | 15520 | |
| e717da7e | 15521 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15522 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15523 | bfd. */ | |
| c72f2fb2 | 15524 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15525 | { |
| 15526 | asection *s; | |
| 7b53ace3 | 15527 | |
| 0c8d6e5c | 15528 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15529 | continue; |
| 15530 | ||
| e717da7e AM |
15531 | s = ppc64_elf_tdata (dynobj)->got; |
| 15532 | if (s != NULL | |
| eea6121a | 15533 | && s->size != 0 |
| e717da7e AM |
15534 | && s->output_section != bfd_abs_section_ptr |
| 15535 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15536 | s->contents, s->output_offset, | |
| eea6121a | 15537 | s->size)) |
| e717da7e AM |
15538 | return FALSE; |
| 15539 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15540 | if (s != NULL | |
| eea6121a | 15541 | && s->size != 0 |
| e717da7e AM |
15542 | && s->output_section != bfd_abs_section_ptr |
| 15543 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15544 | s->contents, s->output_offset, | |
| eea6121a | 15545 | s->size)) |
| e717da7e AM |
15546 | return FALSE; |
| 15547 | } | |
| f6c52c13 | 15548 | |
| b34976b6 | 15549 | return TRUE; |
| 5bd4f169 AM |
15550 | } |
| 15551 | ||
| 5bd4f169 | 15552 | #include "elf64-target.h" |
| 7b8e7dad AM |
15553 | |
| 15554 | /* FreeBSD support */ | |
| 15555 | ||
| 15556 | #undef TARGET_LITTLE_SYM | |
| 15557 | #undef TARGET_LITTLE_NAME | |
| 15558 | ||
| 15559 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15560 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15561 | #undef TARGET_BIG_NAME |
| 15562 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15563 | ||
| 15564 | #undef ELF_OSABI | |
| 15565 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15566 | ||
| 15567 | #undef elf64_bed | |
| 15568 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15569 | ||
| 15570 | #include "elf64-target.h" | |
| 15571 |