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 | ||
| f9c6b907 AM |
2025 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2026 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2027 | 16, /* rightshift */ | |
| 2028 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2029 | 16, /* bitsize */ | |
| 2030 | FALSE, /* pc_relative */ | |
| 2031 | 0, /* bitpos */ | |
| 2032 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2033 | bfd_elf_generic_reloc, /* special_function */ | |
| 2034 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2035 | FALSE, /* partial_inplace */ | |
| 2036 | 0, /* src_mask */ | |
| 2037 | 0xffff, /* dst_mask */ | |
| 2038 | FALSE), /* pcrel_offset */ | |
| 2039 | ||
| 2040 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2041 | HOWTO (R_PPC64_ADDR16_HIGHA, /* 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 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2049 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2050 | FALSE, /* partial_inplace */ | |
| 2051 | 0, /* src_mask */ | |
| 2052 | 0xffff, /* dst_mask */ | |
| 2053 | FALSE), /* pcrel_offset */ | |
| 2054 | ||
| 2055 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2056 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 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_unhandled_reloc, /* special_function */ | |
| 2064 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2065 | FALSE, /* partial_inplace */ | |
| 2066 | 0, /* src_mask */ | |
| 2067 | 0xffff, /* dst_mask */ | |
| 2068 | FALSE), /* pcrel_offset */ | |
| 2069 | ||
| 2070 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2071 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 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_HIGHA", /* name */ | |
| 2080 | FALSE, /* partial_inplace */ | |
| 2081 | 0, /* src_mask */ | |
| 2082 | 0xffff, /* dst_mask */ | |
| 2083 | FALSE), /* pcrel_offset */ | |
| 2084 | ||
| 2085 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2086 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 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_TPREL16_HIGH", /* name */ | |
| 2095 | FALSE, /* partial_inplace */ | |
| 2096 | 0, /* src_mask */ | |
| 2097 | 0xffff, /* dst_mask */ | |
| 2098 | FALSE), /* pcrel_offset */ | |
| 2099 | ||
| 2100 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2101 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 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_HIGHA", /* name */ | |
| 2110 | FALSE, /* partial_inplace */ | |
| 2111 | 0, /* src_mask */ | |
| 2112 | 0xffff, /* dst_mask */ | |
| 2113 | FALSE), /* pcrel_offset */ | |
| 2114 | ||
| 45965137 AM |
2115 | /* Like ADDR64, but use local entry point of function. */ |
| 2116 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2117 | 0, /* rightshift */ | |
| 2118 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2119 | 64, /* bitsize */ | |
| 2120 | FALSE, /* pc_relative */ | |
| 2121 | 0, /* bitpos */ | |
| 2122 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2123 | bfd_elf_generic_reloc, /* special_function */ | |
| 2124 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2125 | FALSE, /* partial_inplace */ | |
| 2126 | 0, /* src_mask */ | |
| 2127 | ONES (64), /* dst_mask */ | |
| 2128 | FALSE), /* pcrel_offset */ | |
| 2129 | ||
| 5bd4f169 AM |
2130 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2131 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2132 | 0, /* rightshift */ | |
| 2133 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2134 | 0, /* bitsize */ | |
| b34976b6 | 2135 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2136 | 0, /* bitpos */ |
| 2137 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2138 | NULL, /* special_function */ | |
| 2139 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2140 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2141 | 0, /* src_mask */ |
| 2142 | 0, /* dst_mask */ | |
| b34976b6 | 2143 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2144 | |
| 2145 | /* GNU extension to record C++ vtable member usage. */ | |
| 2146 | HOWTO (R_PPC64_GNU_VTENTRY, /* 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_VTENTRY", /* 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 | ||
| 2161 | \f | |
| 2162 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2163 | be done. */ | |
| 2164 | ||
| 2165 | static void | |
| 4ce794b7 | 2166 | ppc_howto_init (void) |
| 5bd4f169 AM |
2167 | { |
| 2168 | unsigned int i, type; | |
| 2169 | ||
| a4b6fadd | 2170 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2171 | { |
| 2172 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2173 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2174 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2175 | } | |
| 2176 | } | |
| 2177 | ||
| 2178 | static reloc_howto_type * | |
| 4ce794b7 AM |
2179 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2180 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2181 | { |
| 411e1bfb | 2182 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2183 | |
| 2184 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2185 | /* Initialize howto table if needed. */ | |
| 2186 | ppc_howto_init (); | |
| 2187 | ||
| 4ce794b7 | 2188 | switch (code) |
| 5bd4f169 AM |
2189 | { |
| 2190 | default: | |
| 4ce794b7 | 2191 | return NULL; |
| 5bd4f169 | 2192 | |
| 411e1bfb AM |
2193 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2194 | break; | |
| 2195 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2196 | break; | |
| 2197 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2198 | break; | |
| 2199 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2200 | break; | |
| 2201 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2202 | break; | |
| 2203 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2204 | break; | |
| f9c6b907 AM |
2205 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2206 | break; | |
| 411e1bfb | 2207 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2208 | break; |
| f9c6b907 AM |
2209 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2210 | break; | |
| 411e1bfb | 2211 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2212 | break; |
| 411e1bfb | 2213 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2214 | break; |
| 411e1bfb | 2215 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2216 | break; |
| 411e1bfb | 2217 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2218 | break; |
| 411e1bfb | 2219 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2220 | break; |
| 411e1bfb | 2221 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2222 | break; |
| 411e1bfb | 2223 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2224 | break; |
| 411e1bfb | 2225 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2226 | break; |
| 411e1bfb | 2227 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2228 | break; |
| 411e1bfb | 2229 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2230 | break; |
| 411e1bfb | 2231 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2232 | break; |
| 411e1bfb | 2233 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2234 | break; |
| 411e1bfb | 2235 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2236 | break; |
| 411e1bfb | 2237 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2238 | break; |
| 411e1bfb | 2239 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2240 | break; |
| 411e1bfb | 2241 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2242 | break; |
| 411e1bfb | 2243 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2244 | break; |
| 411e1bfb | 2245 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2246 | break; |
| 411e1bfb | 2247 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2248 | break; |
| 411e1bfb | 2249 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2250 | break; |
| 411e1bfb | 2251 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2252 | break; |
| 411e1bfb | 2253 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2254 | break; |
| 411e1bfb | 2255 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2256 | break; |
| 411e1bfb | 2257 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2258 | break; |
| 411e1bfb | 2259 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2260 | break; |
| 411e1bfb | 2261 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2262 | break; |
| 411e1bfb | 2263 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2264 | break; |
| 411e1bfb | 2265 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2284 | break; |
| 411e1bfb | 2285 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2286 | break; |
| 411e1bfb | 2287 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2288 | break; |
| 411e1bfb | 2289 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2296 | break; |
| 411e1bfb | 2297 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2298 | break; |
| 411e1bfb | 2299 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2300 | break; |
| 411e1bfb | 2301 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2302 | break; |
| 411e1bfb | 2303 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2316 | break; |
| 727fc41e AM |
2317 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2318 | break; | |
| 2319 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2320 | break; | |
| 411e1bfb | 2321 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2328 | break; |
| f9c6b907 AM |
2329 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2330 | break; | |
| 411e1bfb | 2331 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2332 | break; |
| f9c6b907 AM |
2333 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2334 | break; | |
| 411e1bfb | 2335 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb AM |
2337 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2338 | break; | |
| 2339 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2340 | break; | |
| 2341 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2342 | break; | |
| f9c6b907 AM |
2343 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2344 | break; | |
| 411e1bfb AM |
2345 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2346 | break; | |
| f9c6b907 AM |
2347 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2348 | break; | |
| 411e1bfb AM |
2349 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2350 | break; | |
| 2351 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2352 | break; | |
| 2353 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2354 | break; | |
| 2355 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2356 | break; | |
| 2357 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2358 | break; | |
| 2359 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2360 | break; | |
| 2361 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2362 | break; | |
| 2363 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2364 | break; | |
| 2365 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2366 | break; | |
| 2367 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2368 | break; | |
| 2369 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2370 | break; | |
| 2371 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2372 | break; | |
| 2373 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2374 | break; | |
| 2375 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2376 | break; | |
| 2377 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2378 | break; | |
| 2379 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2380 | break; | |
| 2381 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2382 | break; | |
| 2383 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2384 | break; | |
| 2385 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2386 | break; | |
| 2387 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2388 | break; | |
| 2389 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2390 | break; | |
| 2391 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2392 | break; | |
| 2393 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2394 | break; | |
| 2395 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2396 | break; | |
| 2397 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2398 | break; | |
| 2399 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2400 | break; | |
| 2401 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2402 | break; | |
| 2403 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2404 | break; | |
| 2405 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2406 | break; | |
| 25f23106 AM |
2407 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2408 | break; | |
| 2409 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2410 | break; | |
| 2411 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2412 | break; | |
| 2413 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2414 | break; | |
| 45965137 AM |
2415 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2416 | break; | |
| 411e1bfb AM |
2417 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2418 | break; | |
| 2419 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2420 | break; |
| 2421 | } | |
| 2422 | ||
| 4ce794b7 | 2423 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2424 | }; |
| 2425 | ||
| 157090f7 AM |
2426 | static reloc_howto_type * |
| 2427 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2428 | const char *r_name) | |
| 2429 | { | |
| 2430 | unsigned int i; | |
| 2431 | ||
| a4b6fadd | 2432 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2433 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2434 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2435 | return &ppc64_elf_howto_raw[i]; | |
| 2436 | ||
| 2437 | return NULL; | |
| 2438 | } | |
| 2439 | ||
| 5bd4f169 AM |
2440 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2441 | ||
| 2442 | static void | |
| 4ce794b7 AM |
2443 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2444 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2445 | { |
| 65f38f15 AM |
2446 | unsigned int type; |
| 2447 | ||
| ef60b7ff | 2448 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2449 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2450 | ppc_howto_init (); |
| 2451 | ||
| 65f38f15 | 2452 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2453 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d JJ |
2454 | { |
| 2455 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
| 3ec2b351 NC |
2456 | abfd, (int) type); |
| 2457 | type = R_PPC64_NONE; | |
| d0fb9a8d | 2458 | } |
| 65f38f15 | 2459 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2460 | } |
| 2461 | ||
| 04c9666a | 2462 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2463 | |
| 2464 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2465 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2466 | void *data, asection *input_section, | |
| 2467 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2468 | { |
| 805fc799 AM |
2469 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2470 | call the generic function. Any adjustment will be done at final | |
| 2471 | link time. */ | |
| 2472 | if (output_bfd != NULL) | |
| cedb70c5 | 2473 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2474 | input_section, output_bfd, error_message); |
| 2475 | ||
| 2476 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2477 | We won't actually be using the low 16 bits, so trashing them | |
| 2478 | doesn't matter. */ | |
| 2479 | reloc_entry->addend += 0x8000; | |
| 2480 | return bfd_reloc_continue; | |
| 2481 | } | |
| 5bd4f169 | 2482 | |
| 2441e016 AM |
2483 | static bfd_reloc_status_type |
| 2484 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2485 | void *data, asection *input_section, | |
| 2486 | bfd *output_bfd, char **error_message) | |
| 2487 | { | |
| 2488 | if (output_bfd != NULL) | |
| 2489 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2490 | input_section, output_bfd, error_message); | |
| 2491 | ||
| 699733f6 AM |
2492 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2493 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2494 | { |
| 2495 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2496 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2497 | NULL, NULL, FALSE); |
| 2441e016 AM |
2498 | if (dest != (bfd_vma) -1) |
| 2499 | reloc_entry->addend = dest - (symbol->value | |
| 2500 | + symbol->section->output_section->vma | |
| 2501 | + symbol->section->output_offset); | |
| 2502 | } | |
| 810d4e75 AM |
2503 | else |
| 2504 | { | |
| 2505 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2506 | ||
| 2507 | if (symbol->section->owner != abfd | |
| 2508 | && abiversion (symbol->section->owner) >= 2) | |
| 2509 | { | |
| 2510 | unsigned int i; | |
| 2511 | ||
| 2512 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2513 | { | |
| 2514 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2515 | ||
| 2516 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2517 | { | |
| 2518 | elfsym = (elf_symbol_type *) symdef; | |
| 2519 | break; | |
| 2520 | } | |
| 2521 | } | |
| 2522 | } | |
| 2523 | reloc_entry->addend | |
| 2524 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2525 | } | |
| 2441e016 AM |
2526 | return bfd_reloc_continue; |
| 2527 | } | |
| 2528 | ||
| 805fc799 | 2529 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2530 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2531 | void *data, asection *input_section, | |
| 2532 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2533 | { |
| 2534 | long insn; | |
| 04c9666a | 2535 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2536 | bfd_size_type octets; |
| 794e51c0 AM |
2537 | /* Assume 'at' branch hints. */ |
| 2538 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2539 | |
| 2540 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2541 | call the generic function. Any adjustment will be done at final | |
| 2542 | link time. */ | |
| 5bd4f169 | 2543 | if (output_bfd != NULL) |
| cedb70c5 | 2544 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2545 | input_section, output_bfd, error_message); |
| 2546 | ||
| 2547 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2548 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2549 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2550 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2551 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2552 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2553 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2554 | |
| 794e51c0 | 2555 | if (is_isa_v2) |
| 5bd4f169 | 2556 | { |
| 805fc799 AM |
2557 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2558 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2559 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2560 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2561 | insn |= 0x02 << 21; | |
| 2562 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2563 | insn |= 0x08 << 21; | |
| 2564 | else | |
| 2441e016 | 2565 | goto out; |
| 5bd4f169 | 2566 | } |
| 805fc799 AM |
2567 | else |
| 2568 | { | |
| 2569 | bfd_vma target = 0; | |
| 2570 | bfd_vma from; | |
| 5bd4f169 | 2571 | |
| 805fc799 AM |
2572 | if (!bfd_is_com_section (symbol->section)) |
| 2573 | target = symbol->value; | |
| 2574 | target += symbol->section->output_section->vma; | |
| 2575 | target += symbol->section->output_offset; | |
| 2576 | target += reloc_entry->addend; | |
| 5bd4f169 | 2577 | |
| 805fc799 AM |
2578 | from = (reloc_entry->address |
| 2579 | + input_section->output_offset | |
| 2580 | + input_section->output_section->vma); | |
| 5bd4f169 | 2581 | |
| 805fc799 AM |
2582 | /* Invert 'y' bit if not the default. */ |
| 2583 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2584 | insn ^= 0x01 << 21; | |
| 2585 | } | |
| 4ce794b7 | 2586 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2587 | out: |
| 2588 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2589 | input_section, output_bfd, error_message); | |
| 805fc799 | 2590 | } |
| 5bd4f169 | 2591 | |
| 805fc799 | 2592 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2593 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2594 | void *data, asection *input_section, | |
| 2595 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2596 | { |
| 2597 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2598 | call the generic function. Any adjustment will be done at final | |
| 2599 | link time. */ | |
| 2600 | if (output_bfd != NULL) | |
| cedb70c5 | 2601 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2602 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2603 | |
| 805fc799 AM |
2604 | /* Subtract the symbol section base address. */ |
| 2605 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2606 | return bfd_reloc_continue; |
| 2607 | } | |
| 2608 | ||
| 805fc799 | 2609 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2610 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2611 | void *data, asection *input_section, | |
| 2612 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2613 | { |
| 2614 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2615 | call the generic function. Any adjustment will be done at final | |
| 2616 | link time. */ | |
| 2617 | if (output_bfd != NULL) | |
| cedb70c5 | 2618 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2619 | input_section, output_bfd, error_message); |
| 2620 | ||
| 2621 | /* Subtract the symbol section base address. */ | |
| 2622 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2623 | ||
| 2624 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2625 | reloc_entry->addend += 0x8000; | |
| 2626 | return bfd_reloc_continue; | |
| 2627 | } | |
| 2628 | ||
| 2629 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2630 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2631 | void *data, asection *input_section, | |
| 2632 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2633 | { |
| 2634 | bfd_vma TOCstart; | |
| 2635 | ||
| 2636 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2637 | call the generic function. Any adjustment will be done at final | |
| 2638 | link time. */ | |
| 2639 | if (output_bfd != NULL) | |
| cedb70c5 | 2640 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2641 | input_section, output_bfd, error_message); |
| 2642 | ||
| 2643 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2644 | if (TOCstart == 0) | |
| 1c865ab2 | 2645 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2646 | |
| 2647 | /* Subtract the TOC base address. */ | |
| 2648 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2649 | return bfd_reloc_continue; | |
| 2650 | } | |
| 2651 | ||
| 2652 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2653 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2654 | void *data, asection *input_section, | |
| 2655 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2656 | { |
| 2657 | bfd_vma TOCstart; | |
| 2658 | ||
| 2659 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2660 | call the generic function. Any adjustment will be done at final | |
| 2661 | link time. */ | |
| 2662 | if (output_bfd != NULL) | |
| cedb70c5 | 2663 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2664 | input_section, output_bfd, error_message); |
| 2665 | ||
| 2666 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2667 | if (TOCstart == 0) | |
| 1c865ab2 | 2668 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2669 | |
| 2670 | /* Subtract the TOC base address. */ | |
| 2671 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2672 | ||
| 2673 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2674 | reloc_entry->addend += 0x8000; | |
| 2675 | return bfd_reloc_continue; | |
| 2676 | } | |
| 2677 | ||
| 2678 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2679 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2680 | void *data, asection *input_section, | |
| 2681 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2682 | { |
| 2683 | bfd_vma TOCstart; | |
| 2684 | bfd_size_type octets; | |
| 2685 | ||
| 2686 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2687 | call the generic function. Any adjustment will be done at final | |
| 2688 | link time. */ | |
| 2689 | if (output_bfd != NULL) | |
| cedb70c5 | 2690 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2691 | input_section, output_bfd, error_message); |
| 2692 | ||
| 2693 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2694 | if (TOCstart == 0) | |
| 1c865ab2 | 2695 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2696 | |
| 2697 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2698 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2699 | return bfd_reloc_ok; | |
| 2700 | } | |
| 2701 | ||
| 2702 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2703 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2704 | void *data, asection *input_section, | |
| 2705 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2706 | { |
| 2707 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2708 | call the generic function. Any adjustment will be done at final | |
| 2709 | link time. */ | |
| 2710 | if (output_bfd != NULL) | |
| cedb70c5 | 2711 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2712 | input_section, output_bfd, error_message); |
| 2713 | ||
| 2714 | if (error_message != NULL) | |
| 2715 | { | |
| 2716 | static char buf[60]; | |
| 2717 | sprintf (buf, "generic linker can't handle %s", | |
| 2718 | reloc_entry->howto->name); | |
| 2719 | *error_message = buf; | |
| 2720 | } | |
| 2721 | return bfd_reloc_dangerous; | |
| 2722 | } | |
| 2723 | ||
| 927be08e AM |
2724 | /* Track GOT entries needed for a given symbol. We might need more |
| 2725 | than one got entry per symbol. */ | |
| 2726 | struct got_entry | |
| 2727 | { | |
| 2728 | struct got_entry *next; | |
| 2729 | ||
| 2730 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2731 | bfd_vma addend; | |
| 2732 | ||
| 2733 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2734 | symbol referenced from different input files. This is to support | |
| 2735 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2736 | from one input file to another. After partitioning into TOC groups | |
| 2737 | we merge entries within the group. | |
| 2738 | ||
| 2739 | Point to the BFD owning this GOT entry. */ | |
| 2740 | bfd *owner; | |
| 2741 | ||
| 2742 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2743 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2744 | unsigned char tls_type; |
| 927be08e AM |
2745 | |
| 2746 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2747 | unsigned char is_indirect; |
| 927be08e AM |
2748 | |
| 2749 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2750 | union | |
| 2751 | { | |
| 2752 | bfd_signed_vma refcount; | |
| 2753 | bfd_vma offset; | |
| 2754 | struct got_entry *ent; | |
| 2755 | } got; | |
| 2756 | }; | |
| 2757 | ||
| 2758 | /* The same for PLT. */ | |
| 2759 | struct plt_entry | |
| 2760 | { | |
| 2761 | struct plt_entry *next; | |
| 2762 | ||
| 2763 | bfd_vma addend; | |
| 2764 | ||
| 2765 | union | |
| 2766 | { | |
| 2767 | bfd_signed_vma refcount; | |
| 2768 | bfd_vma offset; | |
| 2769 | } plt; | |
| 2770 | }; | |
| 2771 | ||
| e717da7e AM |
2772 | struct ppc64_elf_obj_tdata |
| 2773 | { | |
| 2774 | struct elf_obj_tdata elf; | |
| 2775 | ||
| 2776 | /* Shortcuts to dynamic linker sections. */ | |
| 2777 | asection *got; | |
| 2778 | asection *relgot; | |
| 2779 | ||
| b3fac117 AM |
2780 | /* Used during garbage collection. We attach global symbols defined |
| 2781 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2782 | asection *deleted_section; | |
| 81688140 | 2783 | |
| 927be08e | 2784 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2785 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2786 | struct got_entry tlsld_got; |
| 8860955f | 2787 | |
| 729eabd5 AM |
2788 | union { |
| 2789 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2790 | Elf_Internal_Rela *relocs; | |
| 2791 | ||
| 2792 | /* Section contents. */ | |
| 2793 | bfd_byte *contents; | |
| 2794 | } opd; | |
| d77c8a4b AM |
2795 | |
| 2796 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2797 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2798 | unsigned int has_small_toc_reloc : 1; |
| 2799 | ||
| 560c8763 AM |
2800 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2801 | instruction not one we handle. */ | |
| 2802 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2803 | }; |
| 2804 | ||
| 2805 | #define ppc64_elf_tdata(bfd) \ | |
| 2806 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2807 | ||
| 2808 | #define ppc64_tlsld_got(bfd) \ | |
| 2809 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2810 | ||
| 0c8d6e5c AM |
2811 | #define is_ppc64_elf(bfd) \ |
| 2812 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2813 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2814 | |
| e717da7e AM |
2815 | /* Override the generic function because we store some extras. */ |
| 2816 | ||
| 2817 | static bfd_boolean | |
| 2818 | ppc64_elf_mkobject (bfd *abfd) | |
| 2819 | { | |
| 0ffa91dd | 2820 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2821 | PPC64_ELF_DATA); |
| e717da7e AM |
2822 | } |
| 2823 | ||
| feee612b AM |
2824 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 2825 | default is 32 bit. */ | |
| 2826 | ||
| b34976b6 | 2827 | static bfd_boolean |
| 4ce794b7 | 2828 | ppc64_elf_object_p (bfd *abfd) |
| feee612b AM |
2829 | { |
| 2830 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
| 2831 | { | |
| 2832 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2833 | ||
| 2834 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2835 | { | |
| 2836 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2837 | abfd->arch_info = abfd->arch_info->next; | |
| 2838 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2839 | } | |
| 2840 | } | |
| b34976b6 | 2841 | return TRUE; |
| feee612b AM |
2842 | } |
| 2843 | ||
| d37c89e5 AM |
2844 | /* Support for core dump NOTE sections. */ |
| 2845 | ||
| 2846 | static bfd_boolean | |
| 2847 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2848 | { | |
| eea6121a | 2849 | size_t offset, size; |
| d37c89e5 AM |
2850 | |
| 2851 | if (note->descsz != 504) | |
| 2852 | return FALSE; | |
| 2853 | ||
| 2854 | /* pr_cursig */ | |
| 228e534f | 2855 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2856 | |
| 2857 | /* pr_pid */ | |
| 228e534f | 2858 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2859 | |
| 2860 | /* pr_reg */ | |
| 2861 | offset = 112; | |
| eea6121a | 2862 | size = 384; |
| d37c89e5 AM |
2863 | |
| 2864 | /* Make a ".reg/999" section. */ | |
| 2865 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2866 | size, note->descpos + offset); |
| d37c89e5 AM |
2867 | } |
| 2868 | ||
| 2869 | static bfd_boolean | |
| 2870 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2871 | { | |
| 2872 | if (note->descsz != 136) | |
| 2873 | return FALSE; | |
| 2874 | ||
| 228e534f | 2875 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2876 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2877 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2878 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2879 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2880 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2881 | ||
| 2882 | return TRUE; | |
| 2883 | } | |
| 2884 | ||
| 183e98be AM |
2885 | static char * |
| 2886 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2887 | ...) | |
| 2888 | { | |
| 2889 | switch (note_type) | |
| 2890 | { | |
| 2891 | default: | |
| 2892 | return NULL; | |
| 2893 | ||
| 2894 | case NT_PRPSINFO: | |
| 2895 | { | |
| 2896 | char data[136]; | |
| 2897 | va_list ap; | |
| 2898 | ||
| 2899 | va_start (ap, note_type); | |
| 75cd47ed | 2900 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2901 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2902 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2903 | va_end (ap); | |
| 2904 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2905 | "CORE", note_type, data, sizeof (data)); | |
| 2906 | } | |
| 2907 | ||
| 2908 | case NT_PRSTATUS: | |
| 2909 | { | |
| 2910 | char data[504]; | |
| 2911 | va_list ap; | |
| 2912 | long pid; | |
| 2913 | int cursig; | |
| 2914 | const void *greg; | |
| 2915 | ||
| 2916 | va_start (ap, note_type); | |
| 2917 | memset (data, 0, 112); | |
| 2918 | pid = va_arg (ap, long); | |
| 2919 | bfd_put_32 (abfd, pid, data + 32); | |
| 2920 | cursig = va_arg (ap, int); | |
| 2921 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2922 | greg = va_arg (ap, const void *); | |
| 2923 | memcpy (data + 112, greg, 384); | |
| 2924 | memset (data + 496, 0, 8); | |
| 2925 | va_end (ap); | |
| 2926 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2927 | "CORE", note_type, data, sizeof (data)); | |
| 2928 | } | |
| 2929 | } | |
| 2930 | } | |
| 2931 | ||
| 5d35169e AM |
2932 | /* Add extra PPC sections. */ |
| 2933 | ||
| b35d266b | 2934 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 2935 | { |
| 0112cd26 NC |
2936 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 2937 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2938 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2939 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2940 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2941 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2942 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
2943 | }; |
| 2944 | ||
| 7c8fe5c4 AM |
2945 | enum _ppc64_sec_type { |
| 2946 | sec_normal = 0, | |
| 2947 | sec_opd = 1, | |
| 2948 | sec_toc = 2 | |
| 2949 | }; | |
| 2950 | ||
| f0abc2a1 AM |
2951 | struct _ppc64_elf_section_data |
| 2952 | { | |
| 2953 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 2954 | |
| f0abc2a1 AM |
2955 | union |
| 2956 | { | |
| 51aecdc5 AM |
2957 | /* An array with one entry for each opd function descriptor, |
| 2958 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 2959 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
2960 | struct _opd_sec_data |
| 2961 | { | |
| 2962 | /* Points to the function code section for local opd entries. */ | |
| 2963 | asection **func_sec; | |
| 2964 | ||
| 2965 | /* After editing .opd, adjust references to opd local syms. */ | |
| 2966 | long *adjust; | |
| 2967 | } opd; | |
| 7c8fe5c4 | 2968 | |
| 3a71aa26 AM |
2969 | /* An array for toc sections, indexed by offset/8. */ |
| 2970 | struct _toc_sec_data | |
| 2971 | { | |
| 2972 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 2973 | unsigned *symndx; | |
| 2974 | ||
| 2975 | /* And the relocation addend. */ | |
| 2976 | bfd_vma *add; | |
| 2977 | } toc; | |
| 7c8fe5c4 AM |
2978 | } u; |
| 2979 | ||
| 2980 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 2981 | |
| 7c8fe5c4 AM |
2982 | /* Flag set when small branches are detected. Used to |
| 2983 | select suitable defaults for the stub group size. */ | |
| 2984 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
2985 | }; |
| 2986 | ||
| 2987 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 2988 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
2989 | |
| 2990 | static bfd_boolean | |
| 4ce794b7 | 2991 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 2992 | { |
| f592407e AM |
2993 | if (!sec->used_by_bfd) |
| 2994 | { | |
| 2995 | struct _ppc64_elf_section_data *sdata; | |
| 2996 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 2997 | |
| f592407e AM |
2998 | sdata = bfd_zalloc (abfd, amt); |
| 2999 | if (sdata == NULL) | |
| 3000 | return FALSE; | |
| 3001 | sec->used_by_bfd = sdata; | |
| 3002 | } | |
| f0abc2a1 AM |
3003 | |
| 3004 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3005 | } | |
| 4025353c | 3006 | |
| 74f0fb50 | 3007 | static struct _opd_sec_data * |
| 4025353c AM |
3008 | get_opd_info (asection * sec) |
| 3009 | { | |
| 3010 | if (sec != NULL | |
| 3011 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3012 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3013 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3014 | return NULL; |
| 3015 | } | |
| 90e3cdf2 JJ |
3016 | \f |
| 3017 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 JJ |
3018 | static bfd_boolean synthetic_relocatable; |
| 3019 | ||
| 699733f6 | 3020 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3021 | |
| 3022 | static int | |
| 3023 | compare_symbols (const void *ap, const void *bp) | |
| 3024 | { | |
| 3025 | const asymbol *a = * (const asymbol **) ap; | |
| 3026 | const asymbol *b = * (const asymbol **) bp; | |
| 3027 | ||
| 699733f6 AM |
3028 | /* Section symbols first. */ |
| 3029 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3030 | return -1; |
| 699733f6 | 3031 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3032 | return 1; |
| 3033 | ||
| 699733f6 | 3034 | /* then .opd symbols. */ |
| ffcfec52 AM |
3035 | if (strcmp (a->section->name, ".opd") == 0 |
| 3036 | && strcmp (b->section->name, ".opd") != 0) | |
| 90e3cdf2 | 3037 | return -1; |
| ffcfec52 AM |
3038 | if (strcmp (a->section->name, ".opd") != 0 |
| 3039 | && strcmp (b->section->name, ".opd") == 0) | |
| 90e3cdf2 JJ |
3040 | return 1; |
| 3041 | ||
| 699733f6 | 3042 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3043 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3044 | == (SEC_CODE | SEC_ALLOC) | |
| 3045 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3046 | != (SEC_CODE | SEC_ALLOC)) | |
| 3047 | return -1; | |
| 3048 | ||
| 3049 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3050 | != (SEC_CODE | SEC_ALLOC) | |
| 3051 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3052 | == (SEC_CODE | SEC_ALLOC)) | |
| 3053 | return 1; | |
| 3054 | ||
| 3055 | if (synthetic_relocatable) | |
| 3056 | { | |
| 3057 | if (a->section->id < b->section->id) | |
| 3058 | return -1; | |
| 3059 | ||
| 3060 | if (a->section->id > b->section->id) | |
| 3061 | return 1; | |
| 3062 | } | |
| 3063 | ||
| 3064 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3065 | return -1; | |
| 3066 | ||
| 3067 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3068 | return 1; | |
| 3069 | ||
| 4d35a0aa AM |
3070 | /* For syms with the same value, prefer strong dynamic global function |
| 3071 | syms over other syms. */ | |
| 3072 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3073 | return -1; | |
| 3074 | ||
| 3075 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3076 | return 1; | |
| 3077 | ||
| 3078 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3079 | return -1; | |
| 3080 | ||
| 3081 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3082 | return 1; | |
| 3083 | ||
| 3084 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3085 | return -1; | |
| 3086 | ||
| 3087 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3088 | return 1; | |
| 3089 | ||
| 3090 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3091 | return -1; | |
| 3092 | ||
| 3093 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3094 | return 1; | |
| 3095 | ||
| 90e3cdf2 JJ |
3096 | return 0; |
| 3097 | } | |
| 3098 | ||
| 699733f6 | 3099 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3100 | |
| 699733f6 | 3101 | static asymbol * |
| 7292b3ac | 3102 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3103 | { |
| 699733f6 | 3104 | long mid; |
| 90e3cdf2 | 3105 | |
| 7292b3ac | 3106 | if (id == (unsigned) -1) |
| 699733f6 AM |
3107 | { |
| 3108 | while (lo < hi) | |
| 3109 | { | |
| 3110 | mid = (lo + hi) >> 1; | |
| 3111 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3112 | lo = mid + 1; | |
| 3113 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3114 | hi = mid; | |
| 3115 | else | |
| 3116 | return syms[mid]; | |
| 3117 | } | |
| 3118 | } | |
| 3119 | else | |
| 3120 | { | |
| 3121 | while (lo < hi) | |
| 3122 | { | |
| 3123 | mid = (lo + hi) >> 1; | |
| 3124 | if (syms[mid]->section->id < id) | |
| 3125 | lo = mid + 1; | |
| 3126 | else if (syms[mid]->section->id > id) | |
| 3127 | hi = mid; | |
| 3128 | else if (syms[mid]->value < value) | |
| 3129 | lo = mid + 1; | |
| 3130 | else if (syms[mid]->value > value) | |
| 3131 | hi = mid; | |
| 3132 | else | |
| 3133 | return syms[mid]; | |
| 3134 | } | |
| 3135 | } | |
| 3136 | return NULL; | |
| 90e3cdf2 JJ |
3137 | } |
| 3138 | ||
| 468392fb AM |
3139 | static bfd_boolean |
| 3140 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3141 | { | |
| 3142 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3143 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3144 | && section->vma <= vma | |
| 3145 | && vma < section->vma + section->size); | |
| 3146 | } | |
| 3147 | ||
| 699733f6 | 3148 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3149 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3150 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3151 | |
| 3152 | static long | |
| a7535cf3 AM |
3153 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3154 | long static_count, asymbol **static_syms, | |
| 3155 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3156 | asymbol **ret) |
| 90e3cdf2 JJ |
3157 | { |
| 3158 | asymbol *s; | |
| 699733f6 AM |
3159 | long i; |
| 3160 | long count; | |
| 90e3cdf2 | 3161 | char *names; |
| a7535cf3 | 3162 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3163 | asection *opd = NULL; |
| 90e3cdf2 | 3164 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3165 | asymbol **syms; |
| ee67d69a | 3166 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3167 | |
| 3168 | *ret = NULL; | |
| 3169 | ||
| ee67d69a AM |
3170 | if (abi < 2) |
| 3171 | { | |
| 3172 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3173 | if (opd == NULL && abi == 1) | |
| 3174 | return 0; | |
| 3175 | } | |
| 90e3cdf2 | 3176 | |
| a7535cf3 | 3177 | symcount = static_count; |
| c9727e01 | 3178 | if (!relocatable) |
| a7535cf3 | 3179 | symcount += dyn_count; |
| 90e3cdf2 | 3180 | if (symcount == 0) |
| c9727e01 | 3181 | return 0; |
| 90e3cdf2 | 3182 | |
| a7535cf3 AM |
3183 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3184 | if (syms == NULL) | |
| 7356fed5 | 3185 | return -1; |
| a7535cf3 AM |
3186 | |
| 3187 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3188 | { | |
| 3189 | /* Use both symbol tables. */ | |
| 3190 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3191 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3192 | } | |
| 3193 | else if (!relocatable && static_count == 0) | |
| 3194 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3195 | else | |
| 3196 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3197 | ||
| 90e3cdf2 | 3198 | synthetic_relocatable = relocatable; |
| 595da8c5 | 3199 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3200 | |
| c9727e01 AM |
3201 | if (!relocatable && symcount > 1) |
| 3202 | { | |
| 3203 | long j; | |
| 3204 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3205 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3206 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3207 | for (i = 1, j = 1; i < symcount; ++i) |
| 3208 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3209 | != syms[i]->value + syms[i]->section->vma) | |
| 3210 | syms[j++] = syms[i]; | |
| 3211 | symcount = j; | |
| 3212 | } | |
| 3213 | ||
| 699733f6 | 3214 | i = 0; |
| ffcfec52 | 3215 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| 699733f6 AM |
3216 | ++i; |
| 3217 | codesecsym = i; | |
| 90e3cdf2 | 3218 | |
| 699733f6 AM |
3219 | for (; i < symcount; ++i) |
| 3220 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3221 | != (SEC_CODE | SEC_ALLOC)) | |
| 3222 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3223 | break; | |
| 3224 | codesecsymend = i; | |
| 90e3cdf2 | 3225 | |
| 699733f6 AM |
3226 | for (; i < symcount; ++i) |
| 3227 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3228 | break; | |
| 3229 | secsymend = i; | |
| 90e3cdf2 | 3230 | |
| 699733f6 | 3231 | for (; i < symcount; ++i) |
| ffcfec52 | 3232 | if (strcmp (syms[i]->section->name, ".opd") != 0) |
| 699733f6 AM |
3233 | break; |
| 3234 | opdsymend = i; | |
| 90e3cdf2 | 3235 | |
| 699733f6 AM |
3236 | for (; i < symcount; ++i) |
| 3237 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3238 | != (SEC_CODE | SEC_ALLOC)) | |
| 3239 | break; | |
| 3240 | symcount = i; | |
| 3241 | ||
| c9727e01 | 3242 | count = 0; |
| 90e3cdf2 | 3243 | |
| 699733f6 | 3244 | if (relocatable) |
| 90e3cdf2 | 3245 | { |
| 699733f6 AM |
3246 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3247 | arelent *r; | |
| 3248 | size_t size; | |
| 3249 | long relcount; | |
| 90e3cdf2 | 3250 | |
| 468392fb AM |
3251 | if (opdsymend == secsymend) |
| 3252 | goto done; | |
| 3253 | ||
| 699733f6 | 3254 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3255 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3256 | if (relcount == 0) |
| c9727e01 | 3257 | goto done; |
| 90e3cdf2 | 3258 | |
| 7356fed5 AM |
3259 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3260 | { | |
| 3261 | count = -1; | |
| 3262 | goto done; | |
| 3263 | } | |
| 3264 | ||
| 699733f6 | 3265 | size = 0; |
| 595da8c5 | 3266 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3267 | { |
| 3268 | asymbol *sym; | |
| 90e3cdf2 | 3269 | |
| 595da8c5 | 3270 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3271 | && r->address < syms[i]->value + opd->vma) |
| 3272 | ++r; | |
| 90e3cdf2 | 3273 | |
| 595da8c5 | 3274 | if (r == opd->relocation + relcount) |
| 699733f6 | 3275 | break; |
| 90e3cdf2 | 3276 | |
| 699733f6 AM |
3277 | if (r->address != syms[i]->value + opd->vma) |
| 3278 | continue; | |
| 90e3cdf2 | 3279 | |
| 699733f6 AM |
3280 | if (r->howto->type != R_PPC64_ADDR64) |
| 3281 | continue; | |
| 90e3cdf2 | 3282 | |
| 699733f6 AM |
3283 | sym = *r->sym_ptr_ptr; |
| 3284 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3285 | sym->section->id, sym->value + r->addend)) | |
| 3286 | { | |
| 3287 | ++count; | |
| 3288 | size += sizeof (asymbol); | |
| 3289 | size += strlen (syms[i]->name) + 2; | |
| 3290 | } | |
| 3291 | } | |
| 90e3cdf2 | 3292 | |
| c4b0b099 AM |
3293 | if (size == 0) |
| 3294 | goto done; | |
| 699733f6 AM |
3295 | s = *ret = bfd_malloc (size); |
| 3296 | if (s == NULL) | |
| 3297 | { | |
| 7356fed5 | 3298 | count = -1; |
| c9727e01 | 3299 | goto done; |
| 699733f6 | 3300 | } |
| 90e3cdf2 | 3301 | |
| 699733f6 | 3302 | names = (char *) (s + count); |
| 90e3cdf2 | 3303 | |
| 595da8c5 | 3304 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3305 | { |
| 699733f6 | 3306 | asymbol *sym; |
| 90e3cdf2 | 3307 | |
| 595da8c5 | 3308 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3309 | && r->address < syms[i]->value + opd->vma) |
| 3310 | ++r; | |
| 90e3cdf2 | 3311 | |
| 595da8c5 | 3312 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3313 | break; |
| 3314 | ||
| 3315 | if (r->address != syms[i]->value + opd->vma) | |
| 3316 | continue; | |
| 3317 | ||
| 3318 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3319 | continue; | |
| 90e3cdf2 | 3320 | |
| 699733f6 AM |
3321 | sym = *r->sym_ptr_ptr; |
| 3322 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3323 | sym->section->id, sym->value + r->addend)) | |
| 3324 | { | |
| 3325 | size_t len; | |
| 3326 | ||
| 3327 | *s = *syms[i]; | |
| 6ba2a415 | 3328 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3329 | s->section = sym->section; |
| 3330 | s->value = sym->value + r->addend; | |
| 3331 | s->name = names; | |
| 3332 | *names++ = '.'; | |
| 3333 | len = strlen (syms[i]->name); | |
| 3334 | memcpy (names, syms[i]->name, len + 1); | |
| 3335 | names += len + 1; | |
| 6f610d07 UW |
3336 | /* Have udata.p point back to the original symbol this |
| 3337 | synthetic symbol was derived from. */ | |
| 3338 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3339 | s++; |
| 3340 | } | |
| 3341 | } | |
| 3342 | } | |
| 3343 | else | |
| 90e3cdf2 | 3344 | { |
| 468392fb | 3345 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3346 | bfd_byte *contents = NULL; |
| 699733f6 | 3347 | size_t size; |
| 468392fb AM |
3348 | long plt_count = 0; |
| 3349 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3350 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3351 | arelent *p; | |
| 90e3cdf2 | 3352 | |
| ee67d69a | 3353 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3354 | { |
| c4b0b099 AM |
3355 | free_contents_and_exit_err: |
| 3356 | count = -1; | |
| ee67d69a | 3357 | free_contents_and_exit: |
| 699733f6 | 3358 | if (contents) |
| ee67d69a | 3359 | free (contents); |
| c9727e01 | 3360 | goto done; |
| 699733f6 | 3361 | } |
| 90e3cdf2 | 3362 | |
| 699733f6 AM |
3363 | size = 0; |
| 3364 | for (i = secsymend; i < opdsymend; ++i) | |
| 3365 | { | |
| 3366 | bfd_vma ent; | |
| 90e3cdf2 | 3367 | |
| 5ef11c02 AM |
3368 | /* Ignore bogus symbols. */ |
| 3369 | if (syms[i]->value > opd->size - 8) | |
| 3370 | continue; | |
| 3371 | ||
| 699733f6 AM |
3372 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3373 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3374 | { | |
| 3375 | ++count; | |
| 3376 | size += sizeof (asymbol); | |
| 3377 | size += strlen (syms[i]->name) + 2; | |
| 3378 | } | |
| 3379 | } | |
| 90e3cdf2 | 3380 | |
| 468392fb | 3381 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3382 | if (dyn_count != 0 |
| 3383 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3384 | { |
| 3385 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3386 | size_t extdynsize; | |
| 3387 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3388 | ||
| 3389 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3390 | goto free_contents_and_exit_err; |
| 468392fb AM |
3391 | |
| 3392 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3393 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3394 | ||
| 3395 | extdyn = dynbuf; | |
| 3396 | extdynend = extdyn + dynamic->size; | |
| 3397 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3398 | { | |
| 3399 | Elf_Internal_Dyn dyn; | |
| 3400 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3401 | ||
| 3402 | if (dyn.d_tag == DT_NULL) | |
| 3403 | break; | |
| 3404 | ||
| 3405 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3406 | { | |
| b9e5796b AM |
3407 | /* The first glink stub starts at offset 32; see |
| 3408 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3409 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3410 | /* The .glink section usually does not survive the final |
| 3411 | link; search for the section (usually .text) where the | |
| 3412 | glink stubs now reside. */ | |
| 3413 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3414 | &glink_vma); | |
| 3415 | break; | |
| 3416 | } | |
| 3417 | } | |
| 3418 | ||
| 3419 | free (dynbuf); | |
| 3420 | } | |
| 3421 | ||
| 3422 | if (glink != NULL) | |
| 3423 | { | |
| 3424 | /* Determine __glink trampoline by reading the relative branch | |
| 3425 | from the first glink stub. */ | |
| 3426 | bfd_byte buf[4]; | |
| b9e5796b AM |
3427 | unsigned int off = 0; |
| 3428 | ||
| 3429 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3430 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3431 | { |
| 3432 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3433 | insn ^= B_DOT; | |
| 3434 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3435 | { |
| 3436 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3437 | break; | |
| 3438 | } | |
| 3439 | off += 4; | |
| 3440 | if (off > 4) | |
| 3441 | break; | |
| 468392fb AM |
3442 | } |
| 3443 | ||
| 3444 | if (resolv_vma) | |
| 3445 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3446 | |
| 066ee829 AM |
3447 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3448 | if (relplt != NULL) | |
| 3449 | { | |
| 3450 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3451 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3452 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3453 | |
| 066ee829 AM |
3454 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3455 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3456 | |
| 066ee829 AM |
3457 | p = relplt->relocation; |
| 3458 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3459 | { |
| 3460 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3461 | if (p->addend != 0) | |
| 3462 | size += sizeof ("+0x") - 1 + 16; | |
| 3463 | } | |
| 066ee829 | 3464 | } |
| 468392fb AM |
3465 | } |
| 3466 | ||
| c4b0b099 AM |
3467 | if (size == 0) |
| 3468 | goto free_contents_and_exit; | |
| 699733f6 AM |
3469 | s = *ret = bfd_malloc (size); |
| 3470 | if (s == NULL) | |
| c4b0b099 | 3471 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3472 | |
| 468392fb | 3473 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3474 | |
| 699733f6 | 3475 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3476 | { |
| 699733f6 | 3477 | bfd_vma ent; |
| 90e3cdf2 | 3478 | |
| 5ef11c02 AM |
3479 | if (syms[i]->value > opd->size - 8) |
| 3480 | continue; | |
| 3481 | ||
| 699733f6 AM |
3482 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3483 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3484 | { |
| c9727e01 | 3485 | long lo, hi; |
| 699733f6 | 3486 | size_t len; |
| c9727e01 | 3487 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3488 | |
| 699733f6 AM |
3489 | *s = *syms[i]; |
| 3490 | lo = codesecsym; | |
| 3491 | hi = codesecsymend; | |
| 3492 | while (lo < hi) | |
| 3493 | { | |
| c9727e01 | 3494 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3495 | if (syms[mid]->section->vma < ent) |
| 3496 | lo = mid + 1; | |
| 3497 | else if (syms[mid]->section->vma > ent) | |
| 3498 | hi = mid; | |
| 3499 | else | |
| c9727e01 AM |
3500 | { |
| 3501 | sec = syms[mid]->section; | |
| 3502 | break; | |
| 3503 | } | |
| 699733f6 AM |
3504 | } |
| 3505 | ||
| c9727e01 | 3506 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3507 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3508 | |
| 3509 | for (; sec != NULL; sec = sec->next) | |
| 3510 | { | |
| 3511 | if (sec->vma > ent) | |
| 3512 | break; | |
| 63524580 JK |
3513 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3514 | info file. */ | |
| 3515 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3516 | break; |
| 3517 | if ((sec->flags & SEC_CODE) != 0) | |
| 3518 | s->section = sec; | |
| 3519 | } | |
| 6ba2a415 | 3520 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3521 | s->value = ent - s->section->vma; |
| 3522 | s->name = names; | |
| 3523 | *names++ = '.'; | |
| 3524 | len = strlen (syms[i]->name); | |
| 3525 | memcpy (names, syms[i]->name, len + 1); | |
| 3526 | names += len + 1; | |
| 6f610d07 UW |
3527 | /* Have udata.p point back to the original symbol this |
| 3528 | synthetic symbol was derived from. */ | |
| 3529 | s->udata.p = syms[i]; | |
| 699733f6 | 3530 | s++; |
| 90e3cdf2 | 3531 | } |
| 90e3cdf2 | 3532 | } |
| 699733f6 | 3533 | free (contents); |
| 468392fb AM |
3534 | |
| 3535 | if (glink != NULL && relplt != NULL) | |
| 3536 | { | |
| 3537 | if (resolv_vma) | |
| 3538 | { | |
| 3539 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3540 | memset (s, 0, sizeof *s); |
| 468392fb | 3541 | s->the_bfd = abfd; |
| 6ba2a415 | 3542 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3543 | s->section = glink; |
| 3544 | s->value = resolv_vma - glink->vma; | |
| 3545 | s->name = names; | |
| 3546 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3547 | names += sizeof ("__glink_PLTresolve"); | |
| 3548 | s++; | |
| 3549 | count++; | |
| 3550 | } | |
| 3551 | ||
| 3552 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3553 | stub rather than on the glink branch table entry. The | |
| 3554 | objdump disassembler would then use a sensible symbol | |
| 3555 | name on plt calls. The difficulty in doing so is | |
| 3556 | a) finding the stubs, and, | |
| 3557 | b) matching stubs against plt entries, and, | |
| 3558 | c) there can be multiple stubs for a given plt entry. | |
| 3559 | ||
| 3560 | Solving (a) could be done by code scanning, but older | |
| 3561 | ppc64 binaries used different stubs to current code. | |
| 3562 | (b) is the tricky one since you need to known the toc | |
| 3563 | pointer for at least one function that uses a pic stub to | |
| 3564 | be able to calculate the plt address referenced. | |
| 3565 | (c) means gdb would need to set multiple breakpoints (or | |
| 3566 | find the glink branch itself) when setting breakpoints | |
| 3567 | for pending shared library loads. */ | |
| 3568 | p = relplt->relocation; | |
| 3569 | for (i = 0; i < plt_count; i++, p++) | |
| 3570 | { | |
| 3571 | size_t len; | |
| 3572 | ||
| 3573 | *s = **p->sym_ptr_ptr; | |
| 3574 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3575 | we are defining a symbol, ensure one of them is set. */ | |
| 3576 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3577 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3578 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3579 | s->section = glink; |
| 3580 | s->value = glink_vma - glink->vma; | |
| 3581 | s->name = names; | |
| 3582 | s->udata.p = NULL; | |
| 3583 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3584 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3585 | names += len; | |
| e054468f AM |
3586 | if (p->addend != 0) |
| 3587 | { | |
| 3588 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3589 | names += sizeof ("+0x") - 1; | |
| 3590 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3591 | names += strlen (names); | |
| 3592 | } | |
| 468392fb AM |
3593 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3594 | names += sizeof ("@plt"); | |
| 3595 | s++; | |
| b9e5796b AM |
3596 | if (abi < 2) |
| 3597 | { | |
| 3598 | glink_vma += 8; | |
| 3599 | if (i >= 0x8000) | |
| 3600 | glink_vma += 4; | |
| 3601 | } | |
| 3602 | else | |
| 468392fb AM |
3603 | glink_vma += 4; |
| 3604 | } | |
| 3605 | count += plt_count; | |
| 3606 | } | |
| 90e3cdf2 JJ |
3607 | } |
| 3608 | ||
| c9727e01 | 3609 | done: |
| a7535cf3 | 3610 | free (syms); |
| 90e3cdf2 JJ |
3611 | return count; |
| 3612 | } | |
| 5bd4f169 | 3613 | \f |
| 65f38f15 AM |
3614 | /* The following functions are specific to the ELF linker, while |
| 3615 | functions above are used generally. Those named ppc64_elf_* are | |
| 3616 | called by the main ELF linker code. They appear in this file more | |
| 3617 | or less in the order in which they are called. eg. | |
| 3618 | ppc64_elf_check_relocs is called early in the link process, | |
| 3619 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3620 | called. |
| 3621 | ||
| 3622 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3623 | functions have both a function code symbol and a function descriptor | |
| 3624 | symbol. A call to foo in a relocatable object file looks like: | |
| 3625 | ||
| 3626 | . .text | |
| 3627 | . x: | |
| 3628 | . bl .foo | |
| 3629 | . nop | |
| 3630 | ||
| 3631 | The function definition in another object file might be: | |
| 3632 | ||
| 3633 | . .section .opd | |
| 3634 | . foo: .quad .foo | |
| 3635 | . .quad .TOC.@tocbase | |
| 3636 | . .quad 0 | |
| 3637 | . | |
| 3638 | . .text | |
| 3639 | . .foo: blr | |
| 3640 | ||
| 3641 | When the linker resolves the call during a static link, the branch | |
| 3642 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3643 | If the function definition is in a shared library, things are a little | |
| 3644 | different: The call goes via a plt call stub, the opd information gets | |
| 3645 | copied to the plt, and the linker patches the nop. | |
| 3646 | ||
| 3647 | . x: | |
| 3648 | . bl .foo_stub | |
| 3649 | . ld 2,40(1) | |
| 3650 | . | |
| 3651 | . | |
| 3652 | . .foo_stub: | |
| 71a39c98 AM |
3653 | . std 2,40(1) # in practice, the call stub |
| 3654 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3655 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3656 | . ld 12,0(11) | |
| 3657 | . ld 2,8(11) | |
| 3658 | . mtctr 12 | |
| 3659 | . ld 11,16(11) | |
| e86ce104 AM |
3660 | . bctr |
| 3661 | . | |
| 3662 | . .section .plt | |
| 3663 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3664 | ||
| 3665 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3666 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3667 | copying. | |
| 3668 | ||
| 3669 | What are the difficulties here? Well, firstly, the relocations | |
| 3670 | examined by the linker in check_relocs are against the function code | |
| 3671 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3672 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3673 | to carefully copy dynamic link information from one symbol to the other. | |
| 3674 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3675 | symbol as is normal for most other backends. We need foo dynamic | |
| 3676 | instead, at least for an application final link. However, when | |
| 3677 | creating a shared library containing foo, we need to have both symbols | |
| 3678 | dynamic so that references to .foo are satisfied during the early | |
| 3679 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3680 | definition from some other object, eg. a static library. |
| 3681 | ||
| 3682 | Update: As of August 2004, we support a new convention. Function | |
| 3683 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3684 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3685 | |
| 1d483afe | 3686 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3687 | selects those that must be copied when linking a shared library, |
| 3688 | even when the symbol is local. */ | |
| 65f38f15 | 3689 | |
| 1d483afe AM |
3690 | static int |
| 3691 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3692 | enum elf_ppc64_reloc_type r_type) | |
| 3693 | { | |
| 3694 | switch (r_type) | |
| 3695 | { | |
| 3696 | default: | |
| 3697 | return 1; | |
| 3698 | ||
| 3699 | case R_PPC64_REL32: | |
| 3700 | case R_PPC64_REL64: | |
| 3701 | case R_PPC64_REL30: | |
| 3702 | return 0; | |
| 3703 | ||
| 3704 | case R_PPC64_TPREL16: | |
| 3705 | case R_PPC64_TPREL16_LO: | |
| 3706 | case R_PPC64_TPREL16_HI: | |
| 3707 | case R_PPC64_TPREL16_HA: | |
| 3708 | case R_PPC64_TPREL16_DS: | |
| 3709 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3710 | case R_PPC64_TPREL16_HIGH: |
| 3711 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3712 | case R_PPC64_TPREL16_HIGHER: |
| 3713 | case R_PPC64_TPREL16_HIGHERA: | |
| 3714 | case R_PPC64_TPREL16_HIGHEST: | |
| 3715 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3716 | case R_PPC64_TPREL64: | |
| 0e1862bb | 3717 | return !bfd_link_executable (info); |
| 1d483afe AM |
3718 | } |
| 3719 | } | |
| 65f38f15 | 3720 | |
| f4656909 AM |
3721 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3722 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3723 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3724 | shared lib. With code that gcc generates, it's vital that this be |
| 3725 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3726 | the address of a function descriptor, which resides in the .opd | |
| 3727 | section. gcc uses the descriptor directly rather than going via the | |
| 3728 | GOT as some other ABI's do, which means that initialized function | |
| 3729 | pointers must reference the descriptor. Thus, a function pointer | |
| 3730 | initialized to the address of a function in a shared library will | |
| 3731 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3732 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3733 | presents a problem as a plt entry for that function is also |
| 3734 | initialized from the function descriptor symbol and the copy reloc | |
| 3735 | may not be initialized first. */ | |
| a23b6845 | 3736 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3737 | |
| 721956f4 | 3738 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3739 | string. */ |
| 3740 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3741 | |
| 3742 | /* Linker stubs. | |
| 3743 | ppc_stub_long_branch: | |
| 3744 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3745 | destination, but a 24 bit branch in a stub section will reach. | |
| 3746 | . b dest | |
| 3747 | ||
| 3748 | ppc_stub_plt_branch: | |
| 3749 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3750 | reach its destination. | |
| 71a39c98 AM |
3751 | . addis %r11,%r2,xxx@toc@ha |
| 3752 | . ld %r12,xxx@toc@l(%r11) | |
| 3753 | . mtctr %r12 | |
| 721956f4 AM |
3754 | . bctr |
| 3755 | ||
| 3756 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3757 | Used to call a function in a shared library. If it so happens that |
| 3758 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3759 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3760 | . std %r2,40(%r1) |
| 71a39c98 AM |
3761 | . addis %r11,%r2,xxx@toc@ha |
| 3762 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3763 | . mtctr %r12 | |
| 3764 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3765 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3766 | . bctr |
| ad8e1ba5 AM |
3767 | |
| 3768 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3769 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3770 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3771 | . std %r2,40(%r1) | |
| 3772 | . addis %r2,%r2,off@ha | |
| 3773 | . addi %r2,%r2,off@l | |
| 3774 | . b dest | |
| 3775 | ||
| 3776 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3777 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3778 | . addis %r11,%r2,xxx@toc@ha |
| 3779 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3780 | . addis %r2,%r2,off@ha |
| 3781 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3782 | . mtctr %r12 |
| ad8e1ba5 | 3783 | . bctr |
| ac2df442 AM |
3784 | |
| 3785 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3786 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3787 | */ |
| 3788 | ||
| 3789 | enum ppc_stub_type { | |
| 3790 | ppc_stub_none, | |
| 3791 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3792 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3793 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3794 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3795 | ppc_stub_plt_call, |
| 7341d5e2 | 3796 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3797 | ppc_stub_global_entry, |
| 3798 | ppc_stub_save_res | |
| 721956f4 AM |
3799 | }; |
| 3800 | ||
| 6f20ed8a AM |
3801 | /* Information on stub grouping. */ |
| 3802 | struct map_stub | |
| 3803 | { | |
| 3804 | /* The stub section. */ | |
| 3805 | asection *stub_sec; | |
| 3806 | /* This is the section to which stubs in the group will be attached. */ | |
| 3807 | asection *link_sec; | |
| a4b6fadd AM |
3808 | /* Next group. */ |
| 3809 | struct map_stub *next; | |
| 3810 | /* Whether to emit a copy of register save/restore functions in this | |
| 3811 | group. */ | |
| 3812 | int needs_save_res; | |
| 6f20ed8a AM |
3813 | }; |
| 3814 | ||
| 721956f4 AM |
3815 | struct ppc_stub_hash_entry { |
| 3816 | ||
| 3817 | /* Base hash table entry structure. */ | |
| 3818 | struct bfd_hash_entry root; | |
| 3819 | ||
| ad8e1ba5 AM |
3820 | enum ppc_stub_type stub_type; |
| 3821 | ||
| 6f20ed8a AM |
3822 | /* Group information. */ |
| 3823 | struct map_stub *group; | |
| 721956f4 AM |
3824 | |
| 3825 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3826 | bfd_vma stub_offset; | |
| 3827 | ||
| 3828 | /* Given the symbol's value and its section we can determine its final | |
| 3829 | value when building the stubs (so the stub knows where to jump. */ | |
| 3830 | bfd_vma target_value; | |
| 3831 | asection *target_section; | |
| 3832 | ||
| 721956f4 AM |
3833 | /* The symbol table entry, if any, that this was derived from. */ |
| 3834 | struct ppc_link_hash_entry *h; | |
| e054468f | 3835 | struct plt_entry *plt_ent; |
| 721956f4 | 3836 | |
| 6911b7dc AM |
3837 | /* Symbol st_other. */ |
| 3838 | unsigned char other; | |
| 721956f4 AM |
3839 | }; |
| 3840 | ||
| 3841 | struct ppc_branch_hash_entry { | |
| 3842 | ||
| 3843 | /* Base hash table entry structure. */ | |
| 3844 | struct bfd_hash_entry root; | |
| 3845 | ||
| c456f082 | 3846 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3847 | unsigned int offset; |
| 3848 | ||
| 3849 | /* Generation marker. */ | |
| 3850 | unsigned int iter; | |
| 3851 | }; | |
| 65f38f15 | 3852 | |
| 19e08130 AM |
3853 | /* Used to track dynamic relocations for local symbols. */ |
| 3854 | struct ppc_dyn_relocs | |
| 3855 | { | |
| 3856 | struct ppc_dyn_relocs *next; | |
| 3857 | ||
| 3858 | /* The input section of the reloc. */ | |
| 3859 | asection *sec; | |
| 3860 | ||
| 3861 | /* Total number of relocs copied for the input section. */ | |
| 3862 | unsigned int count : 31; | |
| 3863 | ||
| 3864 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3865 | unsigned int ifunc : 1; | |
| 3866 | }; | |
| 3867 | ||
| 65f38f15 AM |
3868 | struct ppc_link_hash_entry |
| 3869 | { | |
| 3870 | struct elf_link_hash_entry elf; | |
| 3871 | ||
| b3fac117 AM |
3872 | union { |
| 3873 | /* A pointer to the most recently used stub hash entry against this | |
| 3874 | symbol. */ | |
| 3875 | struct ppc_stub_hash_entry *stub_cache; | |
| 3876 | ||
| 3877 | /* A pointer to the next symbol starting with a '.' */ | |
| 3878 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3879 | } u; | |
| 721956f4 | 3880 | |
| 65f38f15 | 3881 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3882 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3883 | |
| 721956f4 | 3884 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3885 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3886 | |
| e86ce104 AM |
3887 | /* Flag function code and descriptor symbols. */ |
| 3888 | unsigned int is_func:1; | |
| 3889 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3890 | unsigned int fake:1; |
| 411e1bfb | 3891 | |
| c5614fa4 AM |
3892 | /* Whether global opd/toc sym has been adjusted or not. |
| 3893 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3894 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3895 | unsigned int adjust_done:1; |
| 3896 | ||
| 99877b66 AM |
3897 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3898 | unsigned int was_undefined:1; | |
| 3899 | ||
| a4b6fadd AM |
3900 | /* Set if this is an out-of-line register save/restore function, |
| 3901 | with non-standard calling convention. */ | |
| 3902 | unsigned int save_res:1; | |
| 3903 | ||
| 411e1bfb | 3904 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3905 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3906 | corresponding relocs are encountered during check_relocs. | |
| 3907 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3908 | indicate the corresponding GOT entry type is not needed. | |
| 3909 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3910 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3911 | just for convenience in distinguishing the two cases. */ | |
| 3912 | #define TLS_GD 1 /* GD reloc. */ | |
| 3913 | #define TLS_LD 2 /* LD reloc. */ | |
| 3914 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3915 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3916 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 3917 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 3918 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 3919 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 3920 | unsigned char tls_mask; |
| 65f38f15 AM |
3921 | }; |
| 3922 | ||
| 3923 | /* ppc64 ELF linker hash table. */ | |
| 3924 | ||
| 3925 | struct ppc_link_hash_table | |
| 3926 | { | |
| 3927 | struct elf_link_hash_table elf; | |
| 3928 | ||
| 721956f4 AM |
3929 | /* The stub hash table. */ |
| 3930 | struct bfd_hash_table stub_hash_table; | |
| 3931 | ||
| 3932 | /* Another hash table for plt_branch stubs. */ | |
| 3933 | struct bfd_hash_table branch_hash_table; | |
| 3934 | ||
| 3b421ab3 AM |
3935 | /* Hash table for function prologue tocsave. */ |
| 3936 | htab_t tocsave_htab; | |
| 3937 | ||
| e7d1c40c AM |
3938 | /* Various options and other info passed from the linker. */ |
| 3939 | struct ppc64_elf_params *params; | |
| 721956f4 | 3940 | |
| 6f20ed8a AM |
3941 | /* The size of sec_info below. */ |
| 3942 | unsigned int sec_info_arr_size; | |
| 3943 | ||
| 3944 | /* Per-section array of extra section info. Done this way rather | |
| 3945 | than as part of ppc64_elf_section_data so we have the info for | |
| 3946 | non-ppc64 sections. */ | |
| 3947 | struct | |
| 3948 | { | |
| 3949 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 3950 | bfd_vma toc_off; |
| 6f20ed8a AM |
3951 | |
| 3952 | union | |
| 3953 | { | |
| 3954 | /* The section group that this section belongs to. */ | |
| 3955 | struct map_stub *group; | |
| 3956 | /* A temp section list pointer. */ | |
| 3957 | asection *list; | |
| 3958 | } u; | |
| 3959 | } *sec_info; | |
| 721956f4 | 3960 | |
| a4b6fadd AM |
3961 | /* Linked list of groups. */ |
| 3962 | struct map_stub *group; | |
| 3963 | ||
| ad8e1ba5 AM |
3964 | /* Temp used when calculating TOC pointers. */ |
| 3965 | bfd_vma toc_curr; | |
| bf102f86 AM |
3966 | bfd *toc_bfd; |
| 3967 | asection *toc_first_sec; | |
| ad8e1ba5 | 3968 | |
| b3fac117 AM |
3969 | /* Used when adding symbols. */ |
| 3970 | struct ppc_link_hash_entry *dot_syms; | |
| 3971 | ||
| 33e44f2e | 3972 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 AM |
3973 | asection *dynbss; |
| 3974 | asection *relbss; | |
| 3975 | asection *glink; | |
| 82bd7b59 | 3976 | asection *sfpr; |
| 4ce794b7 AM |
3977 | asection *brlt; |
| 3978 | asection *relbrlt; | |
| 58d180e8 | 3979 | asection *glink_eh_frame; |
| ec338859 | 3980 | |
| 8387904d AM |
3981 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 3982 | struct ppc_link_hash_entry *tls_get_addr; | |
| 3983 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 3984 | |
| 927be08e AM |
3985 | /* The size of reliplt used by got entry relocs. */ |
| 3986 | bfd_size_type got_reli_size; | |
| 3987 | ||
| 9b5ecbd0 | 3988 | /* Statistics. */ |
| 7341d5e2 | 3989 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 3990 | |
| ee75fd95 AM |
3991 | /* Number of stubs against global syms. */ |
| 3992 | unsigned long stub_globals; | |
| 3993 | ||
| ee67d69a AM |
3994 | /* Set if we're linking code with function descriptors. */ |
| 3995 | unsigned int opd_abi:1; | |
| 3996 | ||
| 4c52953f | 3997 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 3998 | unsigned int do_multi_toc:1; |
| 4c52953f | 3999 | unsigned int multi_toc_needed:1; |
| 927be08e | 4000 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4001 | unsigned int do_toc_opt:1; |
| 4c52953f | 4002 | |
| 5d1634d7 | 4003 | /* Set on error. */ |
| 99877b66 | 4004 | unsigned int stub_error:1; |
| 721956f4 | 4005 | |
| f6c7c3e8 | 4006 | /* Temp used by ppc64_elf_before_check_relocs. */ |
| 99877b66 | 4007 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
4008 | |
| 4009 | /* Incremented every time we size stubs. */ | |
| 4010 | unsigned int stub_iteration; | |
| 5d1634d7 | 4011 | |
| 87d72d41 AM |
4012 | /* Small local sym cache. */ |
| 4013 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4014 | }; |
| 4015 | ||
| 4c52953f AM |
4016 | /* Rename some of the generic section flags to better document how they |
| 4017 | are used here. */ | |
| b0dddeec AM |
4018 | |
| 4019 | /* Nonzero if this section has TLS related relocations. */ | |
| 4020 | #define has_tls_reloc sec_flg0 | |
| 4021 | ||
| 4022 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4023 | #define has_tls_get_addr_call sec_flg1 | |
| 4024 | ||
| 4025 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4026 | #define has_toc_reloc sec_flg2 | |
| 4027 | ||
| 4028 | /* Nonzero if this section has a call to another section that uses | |
| 4029 | the toc or got. */ | |
| d77c8a4b | 4030 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4031 | |
| 4032 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4033 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4034 | #define call_check_done sec_flg5 |
| 4c52953f | 4035 | |
| 65f38f15 AM |
4036 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4037 | ||
| 4038 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4039 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4040 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4041 | |
| 721956f4 AM |
4042 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4043 | ((struct ppc_stub_hash_entry *) \ | |
| 4044 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4045 | ||
| 4046 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4047 | ((struct ppc_branch_hash_entry *) \ | |
| 4048 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4049 | ||
| 4050 | /* Create an entry in the stub hash table. */ | |
| 4051 | ||
| 4052 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4053 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4054 | struct bfd_hash_table *table, | |
| 4055 | const char *string) | |
| 721956f4 AM |
4056 | { |
| 4057 | /* Allocate the structure if it has not already been allocated by a | |
| 4058 | subclass. */ | |
| 4059 | if (entry == NULL) | |
| 4060 | { | |
| 4061 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4062 | if (entry == NULL) | |
| 4063 | return entry; | |
| 4064 | } | |
| 4065 | ||
| 4066 | /* Call the allocation method of the superclass. */ | |
| 4067 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4068 | if (entry != NULL) | |
| 4069 | { | |
| 4070 | struct ppc_stub_hash_entry *eh; | |
| 4071 | ||
| 4072 | /* Initialize the local fields. */ | |
| 4073 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4074 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4075 | eh->group = NULL; |
| 721956f4 AM |
4076 | eh->stub_offset = 0; |
| 4077 | eh->target_value = 0; | |
| 4078 | eh->target_section = NULL; | |
| 721956f4 | 4079 | eh->h = NULL; |
| 6911b7dc | 4080 | eh->plt_ent = NULL; |
| 6911b7dc | 4081 | eh->other = 0; |
| 721956f4 AM |
4082 | } |
| 4083 | ||
| 4084 | return entry; | |
| 4085 | } | |
| 4086 | ||
| 4087 | /* Create an entry in the branch hash table. */ | |
| 4088 | ||
| 4089 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4090 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4091 | struct bfd_hash_table *table, | |
| 4092 | const char *string) | |
| 721956f4 AM |
4093 | { |
| 4094 | /* Allocate the structure if it has not already been allocated by a | |
| 4095 | subclass. */ | |
| 4096 | if (entry == NULL) | |
| 4097 | { | |
| 4098 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4099 | if (entry == NULL) | |
| 4100 | return entry; | |
| 4101 | } | |
| 4102 | ||
| 4103 | /* Call the allocation method of the superclass. */ | |
| 4104 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4105 | if (entry != NULL) | |
| 4106 | { | |
| 4107 | struct ppc_branch_hash_entry *eh; | |
| 4108 | ||
| 4109 | /* Initialize the local fields. */ | |
| 4110 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4111 | eh->offset = 0; | |
| 4112 | eh->iter = 0; | |
| 4113 | } | |
| 4114 | ||
| 4115 | return entry; | |
| 4116 | } | |
| 4117 | ||
| 65f38f15 AM |
4118 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4119 | ||
| 4120 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4121 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4122 | struct bfd_hash_table *table, | |
| 4123 | const char *string) | |
| 65f38f15 AM |
4124 | { |
| 4125 | /* Allocate the structure if it has not already been allocated by a | |
| 4126 | subclass. */ | |
| 4127 | if (entry == NULL) | |
| 4128 | { | |
| 4129 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4130 | if (entry == NULL) | |
| 4131 | return entry; | |
| 4132 | } | |
| 4133 | ||
| 4134 | /* Call the allocation method of the superclass. */ | |
| 4135 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4136 | if (entry != NULL) | |
| 4137 | { | |
| 4138 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4139 | ||
| b3fac117 | 4140 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4141 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4142 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4143 | ||
| 4144 | /* When making function calls, old ABI code references function entry | |
| 4145 | points (dot symbols), while new ABI code references the function | |
| 4146 | descriptor symbol. We need to make any combination of reference and | |
| 4147 | definition work together, without breaking archive linking. | |
| 4148 | ||
| 4149 | For a defined function "foo" and an undefined call to "bar": | |
| 4150 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4151 | "bar" too). | |
| 4152 | A new object defines "foo" and references "bar". | |
| 4153 | ||
| 4154 | A new object thus has no problem with its undefined symbols being | |
| 4155 | satisfied by definitions in an old object. On the other hand, the | |
| 4156 | old object won't have ".bar" satisfied by a new object. | |
| 4157 | ||
| 4158 | Keep a list of newly added dot-symbols. */ | |
| 4159 | ||
| 4160 | if (string[0] == '.') | |
| 4161 | { | |
| 4162 | struct ppc_link_hash_table *htab; | |
| 4163 | ||
| 4164 | htab = (struct ppc_link_hash_table *) table; | |
| 4165 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4166 | htab->dot_syms = eh; | |
| 4167 | } | |
| 65f38f15 AM |
4168 | } |
| 4169 | ||
| 4170 | return entry; | |
| 4171 | } | |
| 4172 | ||
| 3b421ab3 AM |
4173 | struct tocsave_entry { |
| 4174 | asection *sec; | |
| 4175 | bfd_vma offset; | |
| 4176 | }; | |
| 4177 | ||
| 4178 | static hashval_t | |
| 4179 | tocsave_htab_hash (const void *p) | |
| 4180 | { | |
| 4181 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4182 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4183 | } | |
| 4184 | ||
| 4185 | static int | |
| 4186 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4187 | { | |
| 4188 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4189 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4190 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4191 | } | |
| 4192 | ||
| 68faa637 AM |
4193 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4194 | ||
| 4195 | static void | |
| d495ab0d | 4196 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4197 | { |
| d495ab0d | 4198 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4199 | |
| d495ab0d | 4200 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4201 | if (htab->tocsave_htab) |
| 4202 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4203 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4204 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4205 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4206 | } |
| 4207 | ||
| 65f38f15 AM |
4208 | /* Create a ppc64 ELF linker hash table. */ |
| 4209 | ||
| 4210 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4211 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4212 | { |
| 4213 | struct ppc_link_hash_table *htab; | |
| 4214 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4215 | ||
| 4ce794b7 | 4216 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4217 | if (htab == NULL) |
| 4218 | return NULL; | |
| 4219 | ||
| 66eb6687 | 4220 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4221 | sizeof (struct ppc_link_hash_entry), |
| 4222 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4223 | { |
| e2d34d7d | 4224 | free (htab); |
| 65f38f15 AM |
4225 | return NULL; |
| 4226 | } | |
| 4227 | ||
| 721956f4 | 4228 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4229 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4230 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4231 | { |
| d495ab0d | 4232 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4233 | return NULL; |
| 4234 | } | |
| 721956f4 AM |
4235 | |
| 4236 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4237 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4238 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4239 | { |
| 4240 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4241 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4242 | return NULL; |
| 4243 | } | |
| 721956f4 | 4244 | |
| 3b421ab3 AM |
4245 | htab->tocsave_htab = htab_try_create (1024, |
| 4246 | tocsave_htab_hash, | |
| 4247 | tocsave_htab_eq, | |
| 4248 | NULL); | |
| 4249 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4250 | { |
| d495ab0d | 4251 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4252 | return NULL; |
| 4253 | } | |
| d495ab0d | 4254 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4255 | |
| 3254fd24 AM |
4256 | /* Initializing two fields of the union is just cosmetic. We really |
| 4257 | only care about glist, but when compiled on a 32-bit host the | |
| 4258 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4259 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4260 | htab->elf.init_got_refcount.refcount = 0; |
| 4261 | htab->elf.init_got_refcount.glist = NULL; | |
| 4262 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4263 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4264 | htab->elf.init_got_offset.offset = 0; | |
| 4265 | htab->elf.init_got_offset.glist = NULL; | |
| 4266 | htab->elf.init_plt_offset.offset = 0; | |
| 4267 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4268 | |
| 65f38f15 AM |
4269 | return &htab->elf.root; |
| 4270 | } | |
| 4271 | ||
| bfeb4a28 AM |
4272 | /* Create sections for linker generated code. */ |
| 4273 | ||
| 4274 | static bfd_boolean | |
| 4275 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4276 | { | |
| 4277 | struct ppc_link_hash_table *htab; | |
| 4278 | flagword flags; | |
| 4279 | ||
| 4280 | htab = ppc_hash_table (info); | |
| 4281 | ||
| 4282 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4283 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
| 4284 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4285 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4286 | flags); | |
| 4287 | if (htab->sfpr == NULL | |
| 4288 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4289 | return FALSE; | |
| 4290 | ||
| 4291 | /* Create .glink for lazy dynamic linking support. */ | |
| 4292 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4293 | flags); | |
| 4294 | if (htab->glink == NULL | |
| 4295 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4296 | return FALSE; | |
| 4297 | ||
| 4298 | if (!info->no_ld_generated_unwind_info) | |
| 4299 | { | |
| 4300 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4301 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4302 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4303 | ".eh_frame", | |
| 4304 | flags); | |
| 4305 | if (htab->glink_eh_frame == NULL | |
| 4306 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4307 | return FALSE; | |
| 4308 | } | |
| 4309 | ||
| 4310 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4311 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4312 | if (htab->elf.iplt == NULL | |
| 4313 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4314 | return FALSE; |
| 4315 | ||
| 4316 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4317 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4318 | htab->elf.irelplt |
| 4319 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4320 | if (htab->elf.irelplt == NULL | |
| 4321 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4322 | return FALSE; |
| 4323 | ||
| 4324 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4325 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4326 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4327 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4328 | flags); | |
| 4329 | if (htab->brlt == NULL | |
| 4330 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4331 | return FALSE; | |
| 4332 | ||
| 0e1862bb | 4333 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4334 | return TRUE; |
| 4335 | ||
| 4336 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4337 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4338 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4339 | ".rela.branch_lt", | |
| 4340 | flags); | |
| 4341 | if (htab->relbrlt == NULL | |
| 4342 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4343 | return FALSE; | |
| 4344 | ||
| 4345 | return TRUE; | |
| 4346 | } | |
| 4347 | ||
| e717da7e AM |
4348 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4349 | ||
| bfeb4a28 | 4350 | bfd_boolean |
| e7d1c40c AM |
4351 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4352 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4353 | { |
| 4354 | struct ppc_link_hash_table *htab; | |
| 4355 | ||
| e7d1c40c | 4356 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4357 | |
| 4358 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4359 | linker created stub bfd. This ensures that the GOT header is at | |
| 4360 | the start of the output TOC section. */ | |
| 4361 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4362 | if (htab == NULL) |
| bfeb4a28 | 4363 | return FALSE; |
| e7d1c40c AM |
4364 | htab->elf.dynobj = params->stub_bfd; |
| 4365 | htab->params = params; | |
| bfeb4a28 | 4366 | |
| 0e1862bb | 4367 | if (bfd_link_relocatable (info)) |
| bfeb4a28 AM |
4368 | return TRUE; |
| 4369 | ||
| 4370 | return create_linkage_sections (htab->elf.dynobj, info); | |
| e717da7e AM |
4371 | } |
| 4372 | ||
| 721956f4 AM |
4373 | /* Build a name for an entry in the stub hash table. */ |
| 4374 | ||
| 4375 | static char * | |
| 4ce794b7 AM |
4376 | ppc_stub_name (const asection *input_section, |
| 4377 | const asection *sym_sec, | |
| 4378 | const struct ppc_link_hash_entry *h, | |
| 4379 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4380 | { |
| 4381 | char *stub_name; | |
| bcaa2f82 | 4382 | ssize_t len; |
| 721956f4 AM |
4383 | |
| 4384 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4385 | offsets from a sym as a branch target? In fact, we could | |
| 4386 | probably assume the addend is always zero. */ | |
| 4387 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4388 | ||
| 4389 | if (h) | |
| 4390 | { | |
| 4391 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4392 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4393 | if (stub_name == NULL) |
| 4394 | return stub_name; | |
| 4395 | ||
| bcaa2f82 AM |
4396 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4397 | input_section->id & 0xffffffff, | |
| 4398 | h->elf.root.root.string, | |
| 4399 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4400 | } |
| 4401 | else | |
| 4402 | { | |
| ad8e1ba5 | 4403 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4404 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4405 | if (stub_name == NULL) |
| 4406 | return stub_name; | |
| 4407 | ||
| bcaa2f82 AM |
4408 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4409 | input_section->id & 0xffffffff, | |
| 4410 | sym_sec->id & 0xffffffff, | |
| 4411 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4412 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4413 | } |
| bcaa2f82 | 4414 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4415 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4416 | return stub_name; |
| 4417 | } | |
| 4418 | ||
| 4419 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4420 | creating the stub name takes a bit of time. */ | |
| 4421 | ||
| 4422 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4423 | ppc_get_stub_entry (const asection *input_section, |
| 4424 | const asection *sym_sec, | |
| 039b3fef | 4425 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4426 | const Elf_Internal_Rela *rel, |
| 4427 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4428 | { |
| 4429 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4430 | struct map_stub *group; |
| 721956f4 AM |
4431 | |
| 4432 | /* If this input section is part of a group of sections sharing one | |
| 4433 | stub section, then use the id of the first section in the group. | |
| 4434 | Stub names need to include a section id, as there may well be | |
| 4435 | more than one stub used to reach say, printf, and we need to | |
| 4436 | distinguish between them. */ | |
| 6f20ed8a | 4437 | group = htab->sec_info[input_section->id].u.group; |
| 721956f4 | 4438 | |
| b3fac117 AM |
4439 | if (h != NULL && h->u.stub_cache != NULL |
| 4440 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4441 | && h->u.stub_cache->group == group) |
| 721956f4 | 4442 | { |
| b3fac117 | 4443 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4444 | } |
| 4445 | else | |
| 4446 | { | |
| 4447 | char *stub_name; | |
| 4448 | ||
| 6f20ed8a | 4449 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4450 | if (stub_name == NULL) |
| 4451 | return NULL; | |
| 4452 | ||
| 4453 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4454 | stub_name, FALSE, FALSE); |
| 721956f4 | 4455 | if (h != NULL) |
| b3fac117 | 4456 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4457 | |
| 4458 | free (stub_name); | |
| 4459 | } | |
| 4460 | ||
| 4461 | return stub_entry; | |
| 4462 | } | |
| 4463 | ||
| 4464 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4465 | stub entry are initialised. */ | |
| 4466 | ||
| 4467 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4468 | ppc_add_stub (const char *stub_name, |
| 4469 | asection *section, | |
| 25f53a85 | 4470 | struct bfd_link_info *info) |
| 721956f4 | 4471 | { |
| 25f53a85 | 4472 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4473 | struct map_stub *group; |
| 721956f4 AM |
4474 | asection *link_sec; |
| 4475 | asection *stub_sec; | |
| 4476 | struct ppc_stub_hash_entry *stub_entry; | |
| 4477 | ||
| 6f20ed8a AM |
4478 | group = htab->sec_info[section->id].u.group; |
| 4479 | link_sec = group->link_sec; | |
| 4480 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4481 | if (stub_sec == NULL) |
| 4482 | { | |
| 6f20ed8a AM |
4483 | size_t namelen; |
| 4484 | bfd_size_type len; | |
| 4485 | char *s_name; | |
| 721956f4 | 4486 | |
| 6f20ed8a AM |
4487 | namelen = strlen (link_sec->name); |
| 4488 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4489 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4490 | if (s_name == NULL) | |
| 4491 | return NULL; | |
| 721956f4 | 4492 | |
| 6f20ed8a AM |
4493 | memcpy (s_name, link_sec->name, namelen); |
| 4494 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4495 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4496 | if (stub_sec == NULL) | |
| 4497 | return NULL; | |
| 4498 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4499 | } |
| 4500 | ||
| 4501 | /* Enter this entry into the linker stub hash table. */ | |
| 4502 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4503 | TRUE, FALSE); |
| 721956f4 AM |
4504 | if (stub_entry == NULL) |
| 4505 | { | |
| 8de848d8 | 4506 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4507 | section->owner, stub_name); |
| 721956f4 AM |
4508 | return NULL; |
| 4509 | } | |
| 4510 | ||
| 6f20ed8a | 4511 | stub_entry->group = group; |
| 721956f4 | 4512 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4513 | return stub_entry; |
| 4514 | } | |
| 4515 | ||
| e717da7e AM |
4516 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4517 | not already done. */ | |
| 65f38f15 | 4518 | |
| b34976b6 | 4519 | static bfd_boolean |
| e717da7e | 4520 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4521 | { |
| e717da7e AM |
4522 | asection *got, *relgot; |
| 4523 | flagword flags; | |
| 4524 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4525 | |
| 0c8d6e5c | 4526 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4527 | return FALSE; |
| 4dfe6ac6 NC |
4528 | if (htab == NULL) |
| 4529 | return FALSE; | |
| 0ffa91dd | 4530 | |
| 33e44f2e AM |
4531 | if (!htab->elf.sgot |
| 4532 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4533 | return FALSE; | |
| e717da7e AM |
4534 | |
| 4535 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4536 | | SEC_LINKER_CREATED); | |
| 4537 | ||
| c456f082 | 4538 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4539 | if (!got |
| e717da7e AM |
4540 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4541 | return FALSE; | |
| 65f38f15 | 4542 | |
| c456f082 AM |
4543 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4544 | flags | SEC_READONLY); | |
| e717da7e | 4545 | if (!relgot |
| e717da7e | 4546 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4547 | return FALSE; |
| e717da7e AM |
4548 | |
| 4549 | ppc64_elf_tdata (abfd)->got = got; | |
| 4550 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4551 | return TRUE; |
| 65f38f15 | 4552 | } |
| 5bd4f169 | 4553 | |
| 82bd7b59 | 4554 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4555 | |
| b34976b6 | 4556 | static bfd_boolean |
| 4ce794b7 | 4557 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4558 | { |
| 65f38f15 | 4559 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4560 | |
| 65f38f15 | 4561 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4562 | return FALSE; |
| 65f38f15 | 4563 | |
| e717da7e | 4564 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4565 | if (htab == NULL) |
| 4566 | return FALSE; | |
| 4567 | ||
| 3d4d4302 | 4568 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
| 0e1862bb | 4569 | if (!bfd_link_pic (info)) |
| 3d4d4302 | 4570 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4571 | |
| 33e44f2e | 4572 | if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss |
| 0e1862bb | 4573 | || (!bfd_link_pic (info) && !htab->relbss)) |
| 65f38f15 AM |
4574 | abort (); |
| 4575 | ||
| b34976b6 | 4576 | return TRUE; |
| 5bd4f169 AM |
4577 | } |
| 4578 | ||
| b31867b6 AM |
4579 | /* Follow indirect and warning symbol links. */ |
| 4580 | ||
| 4581 | static inline struct bfd_link_hash_entry * | |
| 4582 | follow_link (struct bfd_link_hash_entry *h) | |
| 4583 | { | |
| 4584 | while (h->type == bfd_link_hash_indirect | |
| 4585 | || h->type == bfd_link_hash_warning) | |
| 4586 | h = h->u.i.link; | |
| 4587 | return h; | |
| 4588 | } | |
| 4589 | ||
| 4590 | static inline struct elf_link_hash_entry * | |
| 4591 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4592 | { | |
| 4593 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4594 | } | |
| 4595 | ||
| 4596 | static inline struct ppc_link_hash_entry * | |
| 4597 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4598 | { | |
| 4599 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4600 | } | |
| 4601 | ||
| 40d16e0b AM |
4602 | /* Merge PLT info on FROM with that on TO. */ |
| 4603 | ||
| 4604 | static void | |
| 4605 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4606 | struct ppc_link_hash_entry *to) | |
| 4607 | { | |
| 4608 | if (from->elf.plt.plist != NULL) | |
| 4609 | { | |
| 4610 | if (to->elf.plt.plist != NULL) | |
| 4611 | { | |
| 4612 | struct plt_entry **entp; | |
| 4613 | struct plt_entry *ent; | |
| 4614 | ||
| 4615 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4616 | { | |
| 4617 | struct plt_entry *dent; | |
| 4618 | ||
| 4619 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4620 | if (dent->addend == ent->addend) | |
| 4621 | { | |
| 4622 | dent->plt.refcount += ent->plt.refcount; | |
| 4623 | *entp = ent->next; | |
| 4624 | break; | |
| 4625 | } | |
| 4626 | if (dent == NULL) | |
| 4627 | entp = &ent->next; | |
| 4628 | } | |
| 4629 | *entp = to->elf.plt.plist; | |
| 4630 | } | |
| 4631 | ||
| 4632 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4633 | from->elf.plt.plist = NULL; | |
| 4634 | } | |
| 4635 | } | |
| 4636 | ||
| 65f38f15 AM |
4637 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4638 | ||
| 4639 | static void | |
| fcfa13d2 AM |
4640 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4641 | struct elf_link_hash_entry *dir, | |
| 4642 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4643 | { |
| 4644 | struct ppc_link_hash_entry *edir, *eind; | |
| 4645 | ||
| 4646 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4647 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4648 | ||
| c79d6685 AM |
4649 | edir->is_func |= eind->is_func; |
| 4650 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4651 | edir->tls_mask |= eind->tls_mask; | |
| 4652 | if (eind->oh != NULL) | |
| 4653 | edir->oh = ppc_follow_link (eind->oh); | |
| 4654 | ||
| 4655 | /* If called to transfer flags for a weakdef during processing | |
| 4656 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4657 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4658 | if (!(ELIMINATE_COPY_RELOCS | |
| 4659 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4660 | && edir->elf.dynamic_adjusted)) | |
| 4661 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4662 | ||
| 4663 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4664 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4665 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4666 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| a345bc8d | 4667 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; |
| c79d6685 | 4668 | |
| 411e1bfb | 4669 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4670 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4671 | { |
| bbd7ec4a AM |
4672 | if (edir->dyn_relocs != NULL) |
| 4673 | { | |
| 6061a67d AM |
4674 | struct elf_dyn_relocs **pp; |
| 4675 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4676 | |
| fcfa13d2 | 4677 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4678 | list. Merge any entries against the same section. */ |
| 4679 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4680 | { | |
| 6061a67d | 4681 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4682 | |
| 4683 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4684 | if (q->sec == p->sec) | |
| 4685 | { | |
| 4686 | q->pc_count += p->pc_count; | |
| 4687 | q->count += p->count; | |
| 4688 | *pp = p->next; | |
| 4689 | break; | |
| 4690 | } | |
| 4691 | if (q == NULL) | |
| 4692 | pp = &p->next; | |
| 4693 | } | |
| 4694 | *pp = edir->dyn_relocs; | |
| 4695 | } | |
| 4696 | ||
| 65f38f15 AM |
4697 | edir->dyn_relocs = eind->dyn_relocs; |
| 4698 | eind->dyn_relocs = NULL; | |
| 4699 | } | |
| 65f38f15 | 4700 | |
| 68ba6d40 AM |
4701 | /* If we were called to copy over info for a weak sym, that's all. |
| 4702 | You might think dyn_relocs need not be copied over; After all, | |
| 4703 | both syms will be dynamic or both non-dynamic so we're just | |
| 68ffbac6 | 4704 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
| 68ba6d40 AM |
4705 | code in ppc64_elf_adjust_dynamic_symbol needs to check for |
| 4706 | dyn_relocs in read-only sections, and it does so on what is the | |
| 4707 | DIR sym here. */ | |
| 4708 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4709 | return; | |
| 4710 | ||
| 81848ca0 AM |
4711 | /* Copy over got entries that we may have already seen to the |
| 4712 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4713 | if (eind->elf.got.glist != NULL) |
| 4714 | { | |
| 4715 | if (edir->elf.got.glist != NULL) | |
| 4716 | { | |
| 4717 | struct got_entry **entp; | |
| 4718 | struct got_entry *ent; | |
| 4719 | ||
| 4720 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4721 | { | |
| 4722 | struct got_entry *dent; | |
| 4723 | ||
| 4724 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4725 | if (dent->addend == ent->addend | |
| e717da7e | 4726 | && dent->owner == ent->owner |
| 411e1bfb AM |
4727 | && dent->tls_type == ent->tls_type) |
| 4728 | { | |
| 4729 | dent->got.refcount += ent->got.refcount; | |
| 4730 | *entp = ent->next; | |
| 4731 | break; | |
| 4732 | } | |
| 4733 | if (dent == NULL) | |
| 4734 | entp = &ent->next; | |
| 4735 | } | |
| 4736 | *entp = edir->elf.got.glist; | |
| 4737 | } | |
| 4738 | ||
| 4739 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4740 | eind->elf.got.glist = NULL; | |
| 4741 | } | |
| 4742 | ||
| 4743 | /* And plt entries. */ | |
| 40d16e0b | 4744 | move_plt_plist (eind, edir); |
| 411e1bfb | 4745 | |
| fcfa13d2 | 4746 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4747 | { |
| fcfa13d2 AM |
4748 | if (edir->elf.dynindx != -1) |
| 4749 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4750 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4751 | edir->elf.dynindx = eind->elf.dynindx; |
| 4752 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4753 | eind->elf.dynindx = -1; | |
| 4754 | eind->elf.dynstr_index = 0; | |
| 4755 | } | |
| 411e1bfb AM |
4756 | } |
| 4757 | ||
| 8387904d AM |
4758 | /* Find the function descriptor hash entry from the given function code |
| 4759 | hash entry FH. Link the entries via their OH fields. */ | |
| 4760 | ||
| 4761 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4762 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4763 | { |
| 4764 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4765 | ||
| 4766 | if (fdh == NULL) | |
| 4767 | { | |
| 4768 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4769 | ||
| 4770 | fdh = (struct ppc_link_hash_entry *) | |
| 4771 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4772 | if (fdh == NULL) |
| 4773 | return fdh; | |
| 4774 | ||
| 4775 | fdh->is_func_descriptor = 1; | |
| 4776 | fdh->oh = fh; | |
| 4777 | fh->is_func = 1; | |
| 4778 | fh->oh = fdh; | |
| 8387904d AM |
4779 | } |
| 4780 | ||
| b31867b6 | 4781 | return ppc_follow_link (fdh); |
| 8387904d AM |
4782 | } |
| 4783 | ||
| bb700d78 AM |
4784 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4785 | ||
| 4786 | static struct ppc_link_hash_entry * | |
| 4787 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4788 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4789 | { |
| 4790 | bfd *abfd; | |
| 4791 | asymbol *newsym; | |
| 4792 | struct bfd_link_hash_entry *bh; | |
| 4793 | struct ppc_link_hash_entry *fdh; | |
| 4794 | ||
| 4795 | abfd = fh->elf.root.u.undef.abfd; | |
| 4796 | newsym = bfd_make_empty_symbol (abfd); | |
| 4797 | newsym->name = fh->elf.root.root.string + 1; | |
| 4798 | newsym->section = bfd_und_section_ptr; | |
| 4799 | newsym->value = 0; | |
| 908b32fc | 4800 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4801 | |
| 4802 | bh = NULL; | |
| 4803 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4804 | newsym->flags, newsym->section, | |
| 4805 | newsym->value, NULL, FALSE, FALSE, | |
| 4806 | &bh)) | |
| 4807 | return NULL; | |
| 4808 | ||
| 4809 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4810 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4811 | fdh->fake = 1; |
| 4812 | fdh->is_func_descriptor = 1; | |
| 4813 | fdh->oh = fh; | |
| 4814 | fh->is_func = 1; | |
| 4815 | fh->oh = fdh; | |
| bb700d78 AM |
4816 | return fdh; |
| 4817 | } | |
| 4818 | ||
| 8387904d AM |
4819 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4820 | function type. */ | |
| 555cd476 AM |
4821 | |
| 4822 | static bfd_boolean | |
| c16153ae | 4823 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4824 | struct bfd_link_info *info, |
| 555cd476 | 4825 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4826 | const char **name, |
| 555cd476 AM |
4827 | flagword *flags ATTRIBUTE_UNUSED, |
| 4828 | asection **sec, | |
| b53dfeb2 | 4829 | bfd_vma *value) |
| 555cd476 | 4830 | { |
| f1885d1e AM |
4831 | if ((ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| 4832 | || ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE) | |
| 4833 | && (ibfd->flags & DYNAMIC) == 0 | |
| 4834 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| 13a2df29 | 4835 | elf_tdata (info->output_bfd)->has_gnu_symbols = elf_gnu_symbol_any; |
| f64b2e8d | 4836 | |
| b53dfeb2 | 4837 | if (*sec != NULL |
| f1885d1e | 4838 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4839 | { |
| 4840 | asection *code_sec; | |
| 4841 | ||
| 4842 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4843 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4844 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4845 | ||
| 4846 | /* If the symbol is a function defined in .opd, and the function | |
| 4847 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4848 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4849 | && (*sec)->reloc_count != 0 |
| 4850 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4851 | FALSE) != (bfd_vma) -1 | |
| 4852 | && discarded_section (code_sec)) | |
| 4853 | { | |
| 4854 | *sec = bfd_und_section_ptr; | |
| 4855 | isym->st_shndx = SHN_UNDEF; | |
| 4856 | } | |
| 4857 | } | |
| dbd1e97e AM |
4858 | else if (*sec != NULL |
| 4859 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4860 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4861 | { | |
| 4862 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4863 | if (htab != NULL) | |
| 4864 | htab->params->object_in_toc = 1; | |
| 4865 | } | |
| 433817dd | 4866 | |
| 6911b7dc AM |
4867 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4868 | { | |
| 4869 | if (abiversion (ibfd) == 0) | |
| 4870 | set_abiversion (ibfd, 2); | |
| 4871 | else if (abiversion (ibfd) == 1) | |
| 4872 | { | |
| 4873 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4874 | " for ABI version 1\n"), name); | |
| 4875 | bfd_set_error (bfd_error_bad_value); | |
| 4876 | return FALSE; | |
| 4877 | } | |
| 4878 | } | |
| 4879 | ||
| 555cd476 AM |
4880 | return TRUE; |
| 4881 | } | |
| 4882 | ||
| 6911b7dc AM |
4883 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4884 | ||
| 4885 | static void | |
| 4886 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4887 | const Elf_Internal_Sym *isym, | |
| 4888 | bfd_boolean definition, | |
| 4889 | bfd_boolean dynamic) | |
| 4890 | { | |
| 4891 | if (definition && !dynamic) | |
| 4892 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4893 | | ELF_ST_VISIBILITY (h->other)); | |
| 4894 | } | |
| 4895 | ||
| 8387904d | 4896 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
4897 | inclusion of a new ABI object archive that defines "bar". |
| 4898 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 4899 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
4900 | |
| 4901 | static struct elf_link_hash_entry * | |
| 4902 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 4903 | struct bfd_link_info *info, | |
| 4904 | const char *name) | |
| 4905 | { | |
| 4906 | struct elf_link_hash_entry *h; | |
| 4907 | char *dot_name; | |
| 4908 | size_t len; | |
| 4909 | ||
| 4910 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
4911 | if (h != NULL |
| 4912 | /* Don't return this sym if it is a fake function descriptor | |
| 4913 | created by add_symbol_adjust. */ | |
| 4914 | && !(h->root.type == bfd_link_hash_undefweak | |
| 4915 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
4916 | return h; |
| 4917 | ||
| 4918 | if (name[0] == '.') | |
| 4919 | return h; | |
| 4920 | ||
| 4921 | len = strlen (name); | |
| 4922 | dot_name = bfd_alloc (abfd, len + 2); | |
| 4923 | if (dot_name == NULL) | |
| 4924 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 4925 | dot_name[0] = '.'; | |
| 4926 | memcpy (dot_name + 1, name, len + 1); | |
| 4927 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 4928 | bfd_release (abfd, dot_name); | |
| 4929 | return h; | |
| 4930 | } | |
| 4931 | ||
| 4932 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
4933 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 4934 | are made weak. This stops later archive searches from including an | |
| 4935 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
4936 | prevents the linker complaining about undefined symbols. |
| 4937 | We also check and correct mismatched symbol visibility here. The | |
| 4938 | most restrictive visibility of the function descriptor and the | |
| 4939 | function entry symbol is used. */ | |
| 8387904d AM |
4940 | |
| 4941 | static bfd_boolean | |
| b3fac117 | 4942 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 4943 | { |
| 8387904d AM |
4944 | struct ppc_link_hash_table *htab; |
| 4945 | struct ppc_link_hash_entry *fdh; | |
| 4946 | ||
| b3fac117 | 4947 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 8387904d AM |
4948 | return TRUE; |
| 4949 | ||
| b3fac117 AM |
4950 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 4951 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 4952 | |
| b3fac117 AM |
4953 | if (eh->elf.root.root.string[0] != '.') |
| 4954 | abort (); | |
| 8387904d | 4955 | |
| b3fac117 | 4956 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4957 | if (htab == NULL) |
| 4958 | return FALSE; | |
| 4959 | ||
| b31867b6 AM |
4960 | fdh = lookup_fdh (eh, htab); |
| 4961 | if (fdh == NULL) | |
| 4962 | { | |
| 0e1862bb | 4963 | if (!bfd_link_relocatable (info) |
| b31867b6 AM |
4964 | && (eh->elf.root.type == bfd_link_hash_undefined |
| 4965 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 4966 | && eh->elf.ref_regular) | |
| 4967 | { | |
| 4968 | /* Make an undefweak function descriptor sym, which is enough to | |
| 4969 | pull in an --as-needed shared lib, but won't cause link | |
| 4970 | errors. Archives are handled elsewhere. */ | |
| 4971 | fdh = make_fdh (info, eh); | |
| 4972 | if (fdh == NULL) | |
| 4973 | return FALSE; | |
| 4974 | fdh->elf.ref_regular = 1; | |
| 4975 | } | |
| bb700d78 | 4976 | } |
| b31867b6 | 4977 | else |
| 8387904d | 4978 | { |
| 35b0ce59 AM |
4979 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 4980 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 4981 | if (entry_vis < descr_vis) | |
| 4982 | fdh->elf.other += entry_vis - descr_vis; | |
| 4983 | else if (entry_vis > descr_vis) | |
| 4984 | eh->elf.other += descr_vis - entry_vis; | |
| 4985 | ||
| e87d886e AM |
4986 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 4987 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 4988 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
4989 | { |
| 4990 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 4991 | eh->was_undefined = 1; | |
| 4992 | htab->twiddled_syms = 1; | |
| 4993 | } | |
| 8387904d | 4994 | } |
| 99877b66 | 4995 | |
| 8387904d AM |
4996 | return TRUE; |
| 4997 | } | |
| 4998 | ||
| f6c7c3e8 AM |
4999 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5000 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5001 | |
| 8387904d | 5002 | static bfd_boolean |
| f6c7c3e8 | 5003 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5004 | { |
| 99877b66 | 5005 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5006 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5007 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5008 | |
| 459609d6 | 5009 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5010 | { |
| 459609d6 AM |
5011 | if (abiversion (ibfd) == 0) |
| 5012 | set_abiversion (ibfd, 1); | |
| 5013 | else if (abiversion (ibfd) == 2) | |
| f6c7c3e8 | 5014 | { |
| 459609d6 AM |
5015 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5016 | " version %d\n"), | |
| 5017 | ibfd, abiversion (ibfd)); | |
| 5018 | bfd_set_error (bfd_error_bad_value); | |
| 5019 | return FALSE; | |
| f6c7c3e8 AM |
5020 | } |
| 5021 | ||
| 459609d6 AM |
5022 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5023 | && (opd->flags & SEC_RELOC) != 0 | |
| 5024 | && opd->reloc_count != 0 | |
| 5025 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5026 | { |
| 459609d6 AM |
5027 | /* Garbage collection needs some extra help with .opd sections. |
| 5028 | We don't want to necessarily keep everything referenced by | |
| 5029 | relocs in .opd, as that would keep all functions. Instead, | |
| 5030 | if we reference an .opd symbol (a function descriptor), we | |
| 5031 | want to keep the function code symbol's section. This is | |
| 5032 | easy for global symbols, but for local syms we need to keep | |
| 5033 | information about the associated function section. */ | |
| 5034 | bfd_size_type amt; | |
| 5035 | asection **opd_sym_map; | |
| 5036 | ||
| 51aecdc5 | 5037 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5038 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5039 | if (opd_sym_map == NULL) | |
| b3fac117 | 5040 | return FALSE; |
| 459609d6 AM |
5041 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5042 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5043 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5044 | } |
| 5045 | } | |
| 5046 | ||
| 459609d6 AM |
5047 | if (!is_ppc64_elf (info->output_bfd)) |
| 5048 | return TRUE; | |
| 5049 | htab = ppc_hash_table (info); | |
| 5050 | if (htab == NULL) | |
| 5051 | return FALSE; | |
| 5052 | ||
| 5053 | /* For input files without an explicit abiversion in e_flags | |
| 5054 | we should have flagged any with symbol st_other bits set | |
| 5055 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5056 | Set the output abiversion if not yet set, and for any input | |
| 5057 | still ambiguous, take its abiversion from the output. | |
| 5058 | Differences in ABI are reported later. */ | |
| 5059 | if (abiversion (info->output_bfd) == 0) | |
| 5060 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5061 | else if (abiversion (ibfd) == 0) | |
| 5062 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5063 | ||
| 5064 | p = &htab->dot_syms; | |
| 5065 | while ((eh = *p) != NULL) | |
| 5066 | { | |
| 5067 | *p = NULL; | |
| 5068 | if (&eh->elf == htab->elf.hgot) | |
| 5069 | ; | |
| 5070 | else if (htab->elf.hgot == NULL | |
| 5071 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5072 | htab->elf.hgot = &eh->elf; | |
| 5073 | else if (!add_symbol_adjust (eh, info)) | |
| 5074 | return FALSE; | |
| 5075 | p = &eh->u.next_dot_sym; | |
| 5076 | } | |
| 5077 | ||
| b3fac117 AM |
5078 | /* Clear the list for non-ppc64 input files. */ |
| 5079 | p = &htab->dot_syms; | |
| 5080 | while ((eh = *p) != NULL) | |
| 5081 | { | |
| 5082 | *p = NULL; | |
| 5083 | p = &eh->u.next_dot_sym; | |
| 5084 | } | |
| 99877b66 AM |
5085 | |
| 5086 | /* We need to fix the undefs list for any syms we have twiddled to | |
| 5087 | undef_weak. */ | |
| 5088 | if (htab->twiddled_syms) | |
| 5089 | { | |
| 77cfaee6 | 5090 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
5091 | htab->twiddled_syms = 0; |
| 5092 | } | |
| b3fac117 | 5093 | return TRUE; |
| 8387904d AM |
5094 | } |
| 5095 | ||
| 97fed1c9 JJ |
5096 | /* Undo hash table changes when an --as-needed input file is determined |
| 5097 | not to be needed. */ | |
| 5098 | ||
| 5099 | static bfd_boolean | |
| e5034e59 AM |
5100 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5101 | struct bfd_link_info *info, | |
| 5102 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5103 | { |
| e5034e59 AM |
5104 | if (act == notice_not_needed) |
| 5105 | { | |
| 5106 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5107 | |
| e5034e59 AM |
5108 | if (htab == NULL) |
| 5109 | return FALSE; | |
| 4dfe6ac6 | 5110 | |
| e5034e59 AM |
5111 | htab->dot_syms = NULL; |
| 5112 | } | |
| 5113 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5114 | } |
| 5115 | ||
| aa374f67 AM |
5116 | /* If --just-symbols against a final linked binary, then assume we need |
| 5117 | toc adjusting stubs when calling functions defined there. */ | |
| 5118 | ||
| 5119 | static void | |
| 5120 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5121 | { | |
| 5122 | if ((sec->flags & SEC_CODE) != 0 | |
| 5123 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5124 | && is_ppc64_elf (sec->owner)) | |
| 5125 | { | |
| 2c3f079f AM |
5126 | if (abiversion (sec->owner) >= 2 |
| 5127 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5128 | sec->has_toc_reloc = 1; |
| 5129 | } | |
| 5130 | _bfd_elf_link_just_syms (sec, info); | |
| 5131 | } | |
| 5132 | ||
| e054468f | 5133 | static struct plt_entry ** |
| 4ce794b7 AM |
5134 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5135 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5136 | { |
| 5137 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5138 | struct plt_entry **local_plt; |
| f961d9dd | 5139 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5140 | |
| 5141 | if (local_got_ents == NULL) | |
| 5142 | { | |
| 5143 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5144 | ||
| e054468f AM |
5145 | size *= (sizeof (*local_got_ents) |
| 5146 | + sizeof (*local_plt) | |
| 5147 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5148 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5149 | if (local_got_ents == NULL) |
| e054468f | 5150 | return NULL; |
| 411e1bfb AM |
5151 | elf_local_got_ents (abfd) = local_got_ents; |
| 5152 | } | |
| 5153 | ||
| e054468f | 5154 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5155 | { |
| 5156 | struct got_entry *ent; | |
| 5157 | ||
| 5158 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5159 | if (ent->addend == r_addend |
| 5160 | && ent->owner == abfd | |
| 5161 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5162 | break; |
| 5163 | if (ent == NULL) | |
| 5164 | { | |
| 5165 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5166 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5167 | if (ent == NULL) |
| 5168 | return FALSE; | |
| 5169 | ent->next = local_got_ents[r_symndx]; | |
| 5170 | ent->addend = r_addend; | |
| e717da7e | 5171 | ent->owner = abfd; |
| 411e1bfb | 5172 | ent->tls_type = tls_type; |
| 927be08e | 5173 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5174 | ent->got.refcount = 0; |
| 5175 | local_got_ents[r_symndx] = ent; | |
| 5176 | } | |
| 5177 | ent->got.refcount += 1; | |
| 5178 | } | |
| 5179 | ||
| e054468f | 5180 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5181 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5182 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5183 | |
| 5184 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5185 | } |
| 5186 | ||
| 411e1bfb | 5187 | static bfd_boolean |
| e054468f | 5188 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5189 | { |
| 411e1bfb | 5190 | struct plt_entry *ent; |
| 1e2f5b6e | 5191 | |
| e054468f | 5192 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5193 | if (ent->addend == addend) |
| 5194 | break; | |
| 5195 | if (ent == NULL) | |
| 1e2f5b6e | 5196 | { |
| 411e1bfb | 5197 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5198 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5199 | if (ent == NULL) |
| 5200 | return FALSE; | |
| e054468f | 5201 | ent->next = *plist; |
| 411e1bfb AM |
5202 | ent->addend = addend; |
| 5203 | ent->plt.refcount = 0; | |
| e054468f | 5204 | *plist = ent; |
| 1e2f5b6e | 5205 | } |
| 411e1bfb | 5206 | ent->plt.refcount += 1; |
| b34976b6 | 5207 | return TRUE; |
| 1e2f5b6e AM |
5208 | } |
| 5209 | ||
| e054468f AM |
5210 | static bfd_boolean |
| 5211 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5212 | { | |
| 5213 | return (r_type == R_PPC64_REL24 | |
| 5214 | || r_type == R_PPC64_REL14 | |
| 5215 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5216 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5217 | || r_type == R_PPC64_ADDR24 | |
| 5218 | || r_type == R_PPC64_ADDR14 | |
| 5219 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5220 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5221 | } | |
| 5222 | ||
| 5bd4f169 | 5223 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5224 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5225 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5226 | |
| b34976b6 | 5227 | static bfd_boolean |
| 4ce794b7 AM |
5228 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5229 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5230 | { |
| 65f38f15 | 5231 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5232 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5233 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5234 | const Elf_Internal_Rela *rel; |
| 5235 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5236 | asection *sreloc; |
| 1e2f5b6e | 5237 | asection **opd_sym_map; |
| 3a71aa26 | 5238 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5239 | |
| 0e1862bb | 5240 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5241 | return TRUE; |
| 5bd4f169 | 5242 | |
| 680a3378 AM |
5243 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5244 | In particular, any relocs in such sections should not affect GOT | |
| 5245 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5246 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5247 | relocs, and there's not much point in propagating relocs to shared | |
| 5248 | libs that the dynamic linker won't relocate. */ | |
| 5249 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5250 | return TRUE; | |
| 5251 | ||
| 0c8d6e5c | 5252 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5253 | |
| 65f38f15 | 5254 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5255 | if (htab == NULL) |
| 5256 | return FALSE; | |
| 5257 | ||
| 3a71aa26 AM |
5258 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5259 | FALSE, FALSE, TRUE); | |
| 5260 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5261 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5262 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5263 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5264 | sreloc = NULL; |
| 1e2f5b6e | 5265 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5266 | if (ppc64_elf_section_data (sec) != NULL |
| 5267 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5268 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5269 | |
| 5270 | rel_end = relocs + sec->reloc_count; | |
| 5271 | for (rel = relocs; rel < rel_end; rel++) | |
| 5272 | { | |
| 5273 | unsigned long r_symndx; | |
| 5274 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5275 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5276 | int tls_type; |
| 7c8fe5c4 | 5277 | struct _ppc64_elf_section_data *ppc64_sec; |
| e054468f | 5278 | struct plt_entry **ifunc; |
| 5bd4f169 AM |
5279 | |
| 5280 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5281 | if (r_symndx < symtab_hdr->sh_info) | |
| 5282 | h = NULL; | |
| 5283 | else | |
| 973a3492 L |
5284 | { |
| 5285 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5286 | h = elf_follow_link (h); |
| 81fbe831 AM |
5287 | |
| 5288 | /* PR15323, ref flags aren't set for references in the same | |
| 5289 | object. */ | |
| 5290 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5291 | |
| 5292 | if (h == htab->elf.hgot) | |
| 5293 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5294 | } |
| 5bd4f169 | 5295 | |
| 727fc41e | 5296 | tls_type = 0; |
| e054468f | 5297 | ifunc = NULL; |
| 25f23106 AM |
5298 | if (h != NULL) |
| 5299 | { | |
| 5300 | if (h->type == STT_GNU_IFUNC) | |
| 5301 | { | |
| 5302 | h->needs_plt = 1; | |
| 5303 | ifunc = &h->plt.plist; | |
| 5304 | } | |
| 5305 | } | |
| 5306 | else | |
| 5307 | { | |
| 5308 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5309 | abfd, r_symndx); | |
| 5310 | if (isym == NULL) | |
| 5311 | return FALSE; | |
| 5312 | ||
| 5313 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5314 | { | |
| 5315 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5316 | rel->r_addend, PLT_IFUNC); | |
| 5317 | if (ifunc == NULL) | |
| 5318 | return FALSE; | |
| 5319 | } | |
| 5320 | } | |
| 4ce794b7 | 5321 | r_type = ELF64_R_TYPE (rel->r_info); |
| e054468f AM |
5322 | if (is_branch_reloc (r_type)) |
| 5323 | { | |
| 5324 | if (h != NULL && (h == tga || h == dottga)) | |
| 5325 | { | |
| 5326 | if (rel != relocs | |
| 5327 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5328 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5329 | /* We have a new-style __tls_get_addr call with a marker | |
| 5330 | reloc. */ | |
| 5331 | ; | |
| 5332 | else | |
| 5333 | /* Mark this section as having an old-style call. */ | |
| 5334 | sec->has_tls_get_addr_call = 1; | |
| 5335 | } | |
| 727fc41e | 5336 | |
| e054468f | 5337 | /* STT_GNU_IFUNC symbols must have a PLT entry. */ |
| e054468f AM |
5338 | if (ifunc != NULL |
| 5339 | && !update_plt_info (abfd, ifunc, rel->r_addend)) | |
| 5340 | return FALSE; | |
| 5341 | } | |
| 727fc41e | 5342 | |
| a33d1f77 | 5343 | switch (r_type) |
| 5bd4f169 | 5344 | { |
| 727fc41e AM |
5345 | case R_PPC64_TLSGD: |
| 5346 | case R_PPC64_TLSLD: | |
| 5347 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5348 | its parameter symbol. */ | |
| 5349 | break; | |
| 5350 | ||
| 411e1bfb AM |
5351 | case R_PPC64_GOT_TLSLD16: |
| 5352 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5353 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5354 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5355 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5356 | goto dogottls; |
| 5357 | ||
| 5358 | case R_PPC64_GOT_TLSGD16: | |
| 5359 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5360 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5361 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5362 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5363 | goto dogottls; |
| 5364 | ||
| 5365 | case R_PPC64_GOT_TPREL16_DS: | |
| 5366 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5367 | case R_PPC64_GOT_TPREL16_HI: | |
| 5368 | case R_PPC64_GOT_TPREL16_HA: | |
| 0e1862bb | 5369 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5370 | info->flags |= DF_STATIC_TLS; |
| 5371 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5372 | goto dogottls; | |
| 5373 | ||
| 5374 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5375 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5376 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5377 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5378 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5379 | dogottls: | |
| 5380 | sec->has_tls_reloc = 1; | |
| 5381 | /* Fall thru */ | |
| 5382 | ||
| 5bd4f169 | 5383 | case R_PPC64_GOT16: |
| 5bd4f169 | 5384 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5385 | case R_PPC64_GOT16_HA: |
| 5386 | case R_PPC64_GOT16_HI: | |
| 5387 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5388 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5389 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5390 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5391 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5392 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5393 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5394 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5395 | || r_type == R_PPC64_GOT16 | |
| 5396 | || r_type == R_PPC64_GOT16_DS) | |
| 5397 | { | |
| 5398 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5399 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5400 | } |
| 5401 | ||
| e717da7e AM |
5402 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5403 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5404 | return FALSE; |
| 5bd4f169 AM |
5405 | |
| 5406 | if (h != NULL) | |
| 5407 | { | |
| 411e1bfb AM |
5408 | struct ppc_link_hash_entry *eh; |
| 5409 | struct got_entry *ent; | |
| 65f38f15 | 5410 | |
| 411e1bfb AM |
5411 | eh = (struct ppc_link_hash_entry *) h; |
| 5412 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5413 | if (ent->addend == rel->r_addend | |
| e717da7e | 5414 | && ent->owner == abfd |
| 411e1bfb AM |
5415 | && ent->tls_type == tls_type) |
| 5416 | break; | |
| 5417 | if (ent == NULL) | |
| 5bd4f169 | 5418 | { |
| 411e1bfb | 5419 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5420 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5421 | if (ent == NULL) |
| b34976b6 | 5422 | return FALSE; |
| 411e1bfb AM |
5423 | ent->next = eh->elf.got.glist; |
| 5424 | ent->addend = rel->r_addend; | |
| e717da7e | 5425 | ent->owner = abfd; |
| 411e1bfb | 5426 | ent->tls_type = tls_type; |
| 927be08e | 5427 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5428 | ent->got.refcount = 0; |
| 5429 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5430 | } |
| 411e1bfb | 5431 | ent->got.refcount += 1; |
| e7b938ca | 5432 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5433 | } |
| 411e1bfb AM |
5434 | else |
| 5435 | /* This is a global offset table entry for a local symbol. */ | |
| 5436 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5437 | rel->r_addend, tls_type)) | |
| 5438 | return FALSE; | |
| a345bc8d AM |
5439 | |
| 5440 | /* We may also need a plt entry if the symbol turns out to be | |
| 5441 | an ifunc. */ | |
| 0e1862bb | 5442 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5443 | { |
| 5444 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5445 | return FALSE; | |
| 5446 | } | |
| 5bd4f169 AM |
5447 | break; |
| 5448 | ||
| 5bd4f169 | 5449 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5450 | case R_PPC64_PLT16_HI: |
| 5451 | case R_PPC64_PLT16_LO: | |
| 5452 | case R_PPC64_PLT32: | |
| 5453 | case R_PPC64_PLT64: | |
| 5bd4f169 | 5454 | /* This symbol requires a procedure linkage table entry. We |
| 3fad3c7c AM |
5455 | actually build the entry in adjust_dynamic_symbol, |
| 5456 | because this might be a case of linking PIC code without | |
| 5457 | linking in any dynamic objects, in which case we don't | |
| 5458 | need to generate a procedure linkage table after all. */ | |
| 5bd4f169 AM |
5459 | if (h == NULL) |
| 5460 | { | |
| 5461 | /* It does not make sense to have a procedure linkage | |
| 3fad3c7c | 5462 | table entry for a local symbol. */ |
| 5bd4f169 | 5463 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 5464 | return FALSE; |
| 5bd4f169 | 5465 | } |
| 411e1bfb | 5466 | else |
| e054468f AM |
5467 | { |
| 5468 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5469 | return FALSE; | |
| 5470 | h->needs_plt = 1; | |
| 5471 | if (h->root.root.string[0] == '.' | |
| 5472 | && h->root.root.string[1] != '\0') | |
| 5473 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5474 | } | |
| 5bd4f169 AM |
5475 | break; |
| 5476 | ||
| 5477 | /* The following relocations don't need to propagate the | |
| 5478 | relocation if linking a shared object since they are | |
| 5479 | section relative. */ | |
| 5480 | case R_PPC64_SECTOFF: | |
| 5481 | case R_PPC64_SECTOFF_LO: | |
| 5482 | case R_PPC64_SECTOFF_HI: | |
| 5483 | case R_PPC64_SECTOFF_HA: | |
| 5484 | case R_PPC64_SECTOFF_DS: | |
| 5485 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5486 | case R_PPC64_DTPREL16: |
| 5487 | case R_PPC64_DTPREL16_LO: | |
| 5488 | case R_PPC64_DTPREL16_HI: | |
| 5489 | case R_PPC64_DTPREL16_HA: | |
| 5490 | case R_PPC64_DTPREL16_DS: | |
| 5491 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5492 | case R_PPC64_DTPREL16_HIGH: |
| 5493 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5494 | case R_PPC64_DTPREL16_HIGHER: |
| 5495 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5496 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5497 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5498 | break; |
| 5499 | ||
| ad8e1ba5 | 5500 | /* Nor do these. */ |
| 25f23106 AM |
5501 | case R_PPC64_REL16: |
| 5502 | case R_PPC64_REL16_LO: | |
| 5503 | case R_PPC64_REL16_HI: | |
| 5504 | case R_PPC64_REL16_HA: | |
| 5505 | break; | |
| 5506 | ||
| 45965137 AM |
5507 | /* Not supported as a dynamic relocation. */ |
| 5508 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5509 | if (bfd_link_pic (info)) |
| 45965137 AM |
5510 | { |
| 5511 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5512 | ppc_howto_init (); | |
| 5513 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " | |
| 5514 | "in shared libraries and PIEs.\n"), | |
| 5515 | abfd, sec, rel->r_offset, | |
| 5516 | ppc64_elf_howto_table[r_type]->name); | |
| 5517 | bfd_set_error (bfd_error_bad_value); | |
| 5518 | return FALSE; | |
| 5519 | } | |
| 5520 | break; | |
| 5521 | ||
| ad8e1ba5 | 5522 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5523 | case R_PPC64_TOC16_DS: |
| 5524 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5525 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| ad8e1ba5 AM |
5526 | case R_PPC64_TOC16_LO: |
| 5527 | case R_PPC64_TOC16_HI: | |
| 5528 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5529 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5530 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5531 | break; |
| 5532 | ||
| 5bd4f169 AM |
5533 | /* This relocation describes the C++ object vtable hierarchy. |
| 5534 | Reconstruct it for later use during GC. */ | |
| 5535 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5536 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5537 | return FALSE; |
| 5bd4f169 AM |
5538 | break; |
| 5539 | ||
| 5540 | /* This relocation describes which C++ vtable entries are actually | |
| 5541 | used. Record for later use during GC. */ | |
| 5542 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5543 | BFD_ASSERT (h != NULL); |
| 5544 | if (h != NULL | |
| 5545 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5546 | return FALSE; |
| 5bd4f169 AM |
5547 | break; |
| 5548 | ||
| 721956f4 AM |
5549 | case R_PPC64_REL14: |
| 5550 | case R_PPC64_REL14_BRTAKEN: | |
| 5551 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5552 | { |
| 5553 | asection *dest = NULL; | |
| 5554 | ||
| 5555 | /* Heuristic: If jumping outside our section, chances are | |
| 5556 | we are going to need a stub. */ | |
| 5557 | if (h != NULL) | |
| 5558 | { | |
| 5559 | /* If the sym is weak it may be overridden later, so | |
| 5560 | don't assume we know where a weak sym lives. */ | |
| 5561 | if (h->root.type == bfd_link_hash_defined) | |
| 5562 | dest = h->root.u.def.section; | |
| 5563 | } | |
| 5564 | else | |
| 87d72d41 AM |
5565 | { |
| 5566 | Elf_Internal_Sym *isym; | |
| 5567 | ||
| 5568 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5569 | abfd, r_symndx); | |
| 5570 | if (isym == NULL) | |
| 5571 | return FALSE; | |
| 5572 | ||
| 5573 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5574 | } | |
| 5575 | ||
| 220c76dd | 5576 | if (dest != sec) |
| 7c8fe5c4 | 5577 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5578 | } |
| 721956f4 AM |
5579 | /* Fall through. */ |
| 5580 | ||
| 5d1634d7 | 5581 | case R_PPC64_REL24: |
| e054468f | 5582 | if (h != NULL && ifunc == NULL) |
| 5d1634d7 AM |
5583 | { |
| 5584 | /* We may need a .plt entry if the function this reloc | |
| 5585 | refers to is in a shared lib. */ | |
| e054468f | 5586 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) |
| 411e1bfb | 5587 | return FALSE; |
| e054468f AM |
5588 | h->needs_plt = 1; |
| 5589 | if (h->root.root.string[0] == '.' | |
| 5590 | && h->root.root.string[1] != '\0') | |
| 5591 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 3a71aa26 | 5592 | if (h == tga || h == dottga) |
| 411e1bfb | 5593 | sec->has_tls_reloc = 1; |
| 411e1bfb AM |
5594 | } |
| 5595 | break; | |
| 5596 | ||
| 5597 | case R_PPC64_TPREL64: | |
| 5598 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 0e1862bb | 5599 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5600 | info->flags |= DF_STATIC_TLS; |
| 5601 | goto dotlstoc; | |
| 5602 | ||
| 5603 | case R_PPC64_DTPMOD64: | |
| 5604 | if (rel + 1 < rel_end | |
| 5605 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5606 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5607 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5608 | else |
| 951fd09b | 5609 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5610 | goto dotlstoc; |
| 5611 | ||
| 5612 | case R_PPC64_DTPREL64: | |
| 5613 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5614 | if (rel != relocs | |
| 5615 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5616 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5617 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5618 | Don't mark with TLS_DTPREL. */ | |
| 5619 | goto dodyn; | |
| 5620 | ||
| 5621 | dotlstoc: | |
| 5622 | sec->has_tls_reloc = 1; | |
| 5623 | if (h != NULL) | |
| 5624 | { | |
| 5625 | struct ppc_link_hash_entry *eh; | |
| 5626 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5627 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5628 | } |
| 5629 | else | |
| 5630 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5631 | rel->r_addend, tls_type)) | |
| 5632 | return FALSE; | |
| 5633 | ||
| 7c8fe5c4 AM |
5634 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5635 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5636 | { |
| 3a71aa26 AM |
5637 | bfd_size_type amt; |
| 5638 | ||
| e7b938ca | 5639 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5640 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5641 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5642 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5643 | return FALSE; | |
| 5644 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5645 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5646 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5647 | return FALSE; |
| 7c8fe5c4 AM |
5648 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5649 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5650 | } |
| 5651 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5652 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5653 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5654 | |
| 5655 | /* Mark the second slot of a GD or LD entry. | |
| 5656 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5657 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5658 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5659 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5660 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5661 | goto dodyn; |
| 5662 | ||
| 5663 | case R_PPC64_TPREL16: | |
| 5664 | case R_PPC64_TPREL16_LO: | |
| 5665 | case R_PPC64_TPREL16_HI: | |
| 5666 | case R_PPC64_TPREL16_HA: | |
| 5667 | case R_PPC64_TPREL16_DS: | |
| 5668 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5669 | case R_PPC64_TPREL16_HIGH: |
| 5670 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5671 | case R_PPC64_TPREL16_HIGHER: |
| 5672 | case R_PPC64_TPREL16_HIGHERA: | |
| 5673 | case R_PPC64_TPREL16_HIGHEST: | |
| 5674 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 5675 | if (bfd_link_pic (info)) |
| 411e1bfb | 5676 | { |
| afb93314 | 5677 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5678 | goto dodyn; |
| 5d1634d7 AM |
5679 | } |
| 5680 | break; | |
| 5681 | ||
| e86ce104 | 5682 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5683 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5684 | && rel + 1 < rel_end |
| 4ce794b7 | 5685 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5686 | { |
| 8387904d AM |
5687 | if (h != NULL) |
| 5688 | { | |
| 5689 | if (h->root.root.string[0] == '.' | |
| 5690 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5691 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5692 | ; |
| 5693 | else | |
| 5694 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5695 | } | |
| 5696 | else | |
| 5697 | { | |
| 5698 | asection *s; | |
| 87d72d41 | 5699 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5700 | |
| 87d72d41 AM |
5701 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5702 | abfd, r_symndx); | |
| 5703 | if (isym == NULL) | |
| 8387904d | 5704 | return FALSE; |
| 87d72d41 AM |
5705 | |
| 5706 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5707 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5708 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5709 | } |
| 1e2f5b6e | 5710 | } |
| e86ce104 AM |
5711 | /* Fall through. */ |
| 5712 | ||
| 65f38f15 AM |
5713 | case R_PPC64_ADDR16: |
| 5714 | case R_PPC64_ADDR16_DS: | |
| 5715 | case R_PPC64_ADDR16_HA: | |
| 5716 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5717 | case R_PPC64_ADDR16_HIGH: |
| 5718 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5719 | case R_PPC64_ADDR16_HIGHER: |
| 5720 | case R_PPC64_ADDR16_HIGHERA: | |
| 5721 | case R_PPC64_ADDR16_HIGHEST: | |
| 5722 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5723 | case R_PPC64_ADDR16_LO: | |
| 5724 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5725 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5726 | && rel->r_addend == 0) |
| 5727 | { | |
| 5728 | /* We may need a .plt entry if this reloc refers to a | |
| 5729 | function in a shared lib. */ | |
| 5730 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5731 | return FALSE; | |
| 5732 | h->pointer_equality_needed = 1; | |
| 5733 | } | |
| 5734 | /* Fall through. */ | |
| 5735 | ||
| 5736 | case R_PPC64_REL30: | |
| 5737 | case R_PPC64_REL32: | |
| 5738 | case R_PPC64_REL64: | |
| 5739 | case R_PPC64_ADDR14: | |
| 5740 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5741 | case R_PPC64_ADDR14_BRTAKEN: | |
| 65f38f15 | 5742 | case R_PPC64_ADDR24: |
| 65f38f15 | 5743 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5744 | case R_PPC64_UADDR16: |
| 5745 | case R_PPC64_UADDR32: | |
| 5746 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5747 | case R_PPC64_TOC: |
| 0e1862bb | 5748 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5749 | /* We may need a copy reloc. */ |
| f5385ebf | 5750 | h->non_got_ref = 1; |
| 81848ca0 | 5751 | |
| 41bd81ab | 5752 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5753 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5754 | break; |
| e86ce104 | 5755 | |
| 65f38f15 AM |
5756 | /* If we are creating a shared library, and this is a reloc |
| 5757 | against a global symbol, or a non PC relative reloc | |
| 5758 | against a local symbol, then we need to copy the reloc | |
| 5759 | into the shared library. However, if we are linking with | |
| 5760 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5761 | global symbol which is defined in an object we are | |
| 5762 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5763 | this point we have not seen all the input files, so it is | |
| 5764 | possible that DEF_REGULAR is not set now but will be set | |
| 5765 | later (it is never cleared). In case of a weak definition, | |
| 5766 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5767 | a shared library. We account for that possibility below by | |
| f4656909 | 5768 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5769 | table entry. A similar situation occurs when creating |
| 5770 | shared libraries and symbol visibility changes render the | |
| 5771 | symbol local. | |
| 5772 | ||
| 5773 | If on the other hand, we are creating an executable, we | |
| 5774 | may need to keep relocations for symbols satisfied by a | |
| 5775 | dynamic library if we manage to avoid copy relocs for the | |
| 5776 | symbol. */ | |
| 411e1bfb | 5777 | dodyn: |
| 0e1862bb | 5778 | if ((bfd_link_pic (info) |
| 1d483afe | 5779 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5780 | || (h != NULL |
| 198f1157 | 5781 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5782 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5783 | || !h->def_regular)))) |
| f4656909 | 5784 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5785 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5786 | && h != NULL |
| 5787 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5788 | || !h->def_regular)) |
| 0e1862bb | 5789 | || (!bfd_link_pic (info) |
| 25f23106 | 5790 | && ifunc != NULL)) |
| 5bd4f169 | 5791 | { |
| 65f38f15 AM |
5792 | /* We must copy these reloc types into the output file. |
| 5793 | Create a reloc section in dynobj and make room for | |
| 5794 | this reloc. */ | |
| 5bd4f169 AM |
5795 | if (sreloc == NULL) |
| 5796 | { | |
| 83bac4b0 NC |
5797 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5798 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5799 | |
| 5bd4f169 | 5800 | if (sreloc == NULL) |
| 83bac4b0 | 5801 | return FALSE; |
| 5bd4f169 AM |
5802 | } |
| 5803 | ||
| 65f38f15 AM |
5804 | /* If this is a global symbol, we count the number of |
| 5805 | relocations we need for this symbol. */ | |
| 5806 | if (h != NULL) | |
| 5807 | { | |
| 19e08130 AM |
5808 | struct elf_dyn_relocs *p; |
| 5809 | struct elf_dyn_relocs **head; | |
| 5810 | ||
| ec338859 | 5811 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5812 | p = *head; |
| 5813 | if (p == NULL || p->sec != sec) | |
| 5814 | { | |
| 5815 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5816 | if (p == NULL) | |
| 5817 | return FALSE; | |
| 5818 | p->next = *head; | |
| 5819 | *head = p; | |
| 5820 | p->sec = sec; | |
| 5821 | p->count = 0; | |
| 5822 | p->pc_count = 0; | |
| 5823 | } | |
| 5824 | p->count += 1; | |
| 5825 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5826 | p->pc_count += 1; | |
| 65f38f15 AM |
5827 | } |
| 5828 | else | |
| 5829 | { | |
| ec338859 AM |
5830 | /* Track dynamic relocs needed for local syms too. |
| 5831 | We really need local syms available to do this | |
| 5832 | easily. Oh well. */ | |
| 19e08130 AM |
5833 | struct ppc_dyn_relocs *p; |
| 5834 | struct ppc_dyn_relocs **head; | |
| 5835 | bfd_boolean is_ifunc; | |
| ec338859 | 5836 | asection *s; |
| 6edfbbad | 5837 | void *vpp; |
| 87d72d41 | 5838 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5839 | |
| 87d72d41 AM |
5840 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5841 | abfd, r_symndx); | |
| 5842 | if (isym == NULL) | |
| b34976b6 | 5843 | return FALSE; |
| ec338859 | 5844 | |
| 87d72d41 AM |
5845 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5846 | if (s == NULL) | |
| 5847 | s = sec; | |
| 5848 | ||
| 6edfbbad | 5849 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5850 | head = (struct ppc_dyn_relocs **) vpp; |
| 5851 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5852 | p = *head; | |
| 5853 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5854 | p = p->next; | |
| 5855 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5856 | { | |
| 5857 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5858 | if (p == NULL) | |
| 5859 | return FALSE; | |
| 5860 | p->next = *head; | |
| 5861 | *head = p; | |
| 5862 | p->sec = sec; | |
| 5863 | p->ifunc = is_ifunc; | |
| 5864 | p->count = 0; | |
| 5865 | } | |
| 5866 | p->count += 1; | |
| ec338859 | 5867 | } |
| 65f38f15 | 5868 | } |
| 5bd4f169 | 5869 | break; |
| 65f38f15 AM |
5870 | |
| 5871 | default: | |
| 96e0dda4 | 5872 | break; |
| 5bd4f169 AM |
5873 | } |
| 5874 | } | |
| 5875 | ||
| b34976b6 | 5876 | return TRUE; |
| 5bd4f169 AM |
5877 | } |
| 5878 | ||
| ee67d69a AM |
5879 | /* Merge backend specific data from an object file to the output |
| 5880 | object file when linking. */ | |
| 5881 | ||
| 5882 | static bfd_boolean | |
| 5883 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
| 5884 | { | |
| 5885 | unsigned long iflags, oflags; | |
| 5886 | ||
| 5887 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5888 | return TRUE; | |
| 5889 | ||
| 5890 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 5891 | return TRUE; | |
| 5892 | ||
| 5893 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
| 5894 | return FALSE; | |
| 5895 | ||
| 5896 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 5897 | oflags = elf_elfheader (obfd)->e_flags; | |
| 5898 | ||
| f6c7c3e8 | 5899 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a AM |
5900 | { |
| 5901 | (*_bfd_error_handler) | |
| 5902 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); | |
| 5903 | bfd_set_error (bfd_error_bad_value); | |
| 5904 | return FALSE; | |
| 5905 | } | |
| f6c7c3e8 | 5906 | else if (iflags != oflags && iflags != 0) |
| ee67d69a AM |
5907 | { |
| 5908 | (*_bfd_error_handler) | |
| 5909 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), | |
| 5910 | ibfd, iflags, oflags); | |
| 5911 | bfd_set_error (bfd_error_bad_value); | |
| 5912 | return FALSE; | |
| 5913 | } | |
| 5914 | ||
| 5915 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
| 5916 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
| 5917 | ||
| 5918 | return TRUE; | |
| 5919 | } | |
| 5920 | ||
| 5921 | static bfd_boolean | |
| 5922 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 5923 | { | |
| 5924 | /* Print normal ELF private data. */ | |
| 5925 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 5926 | ||
| 5927 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 5928 | { | |
| 5929 | FILE *file = ptr; | |
| 5930 | ||
| 5931 | /* xgettext:c-format */ | |
| 5932 | fprintf (file, _("private flags = 0x%lx:"), | |
| 5933 | elf_elfheader (abfd)->e_flags); | |
| 5934 | ||
| 5935 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 5936 | fprintf (file, _(" [abiv%ld]"), | |
| 5937 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 5938 | fputc ('\n', file); | |
| 5939 | } | |
| 5940 | ||
| 5941 | return TRUE; | |
| 5942 | } | |
| 5943 | ||
| 8387904d | 5944 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
5945 | of the code entry point, and its section, which must be in the same |
| 5946 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
5947 | |
| 5948 | static bfd_vma | |
| 5949 | opd_entry_value (asection *opd_sec, | |
| 5950 | bfd_vma offset, | |
| 5951 | asection **code_sec, | |
| aef36ac1 AM |
5952 | bfd_vma *code_off, |
| 5953 | bfd_boolean in_code_sec) | |
| 8387904d AM |
5954 | { |
| 5955 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 5956 | Elf_Internal_Rela *relocs; |
| 8387904d | 5957 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 5958 | bfd_vma val; |
| 8387904d | 5959 | |
| 9f296da3 AM |
5960 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 5961 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
5962 | if (opd_sec->reloc_count == 0) |
| 5963 | { | |
| 729eabd5 | 5964 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 5965 | |
| 729eabd5 AM |
5966 | if (contents == NULL) |
| 5967 | { | |
| 5968 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 5969 | return (bfd_vma) -1; | |
| 5970 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 5971 | } | |
| ee1e4ede | 5972 | |
| dbb3fbbb | 5973 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 5974 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
5975 | return (bfd_vma) -1; |
| 5976 | ||
| 729eabd5 | 5977 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
5978 | if (code_sec != NULL) |
| 5979 | { | |
| 5980 | asection *sec, *likely = NULL; | |
| ee1e4ede | 5981 | |
| aef36ac1 | 5982 | if (in_code_sec) |
| 4b85d634 | 5983 | { |
| aef36ac1 AM |
5984 | sec = *code_sec; |
| 5985 | if (sec->vma <= val | |
| 5986 | && val < sec->vma + sec->size) | |
| 5987 | likely = sec; | |
| 5988 | else | |
| 5989 | val = -1; | |
| 5990 | } | |
| 5991 | else | |
| 5992 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 5993 | if (sec->vma <= val | |
| 5994 | && (sec->flags & SEC_LOAD) != 0 | |
| 5995 | && (sec->flags & SEC_ALLOC) != 0) | |
| 5996 | likely = sec; | |
| 5997 | if (likely != NULL) | |
| 5998 | { | |
| 5999 | *code_sec = likely; | |
| 6000 | if (code_off != NULL) | |
| 6001 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6002 | } |
| 6003 | } | |
| aef36ac1 | 6004 | return val; |
| 4b85d634 AM |
6005 | } |
| 6006 | ||
| 0c8d6e5c | 6007 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6008 | |
| 729eabd5 | 6009 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6010 | if (relocs == NULL) |
| 6011 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6012 | /* PR 17512: file: df8e1fd6. */ |
| 6013 | if (relocs == NULL) | |
| 6014 | return (bfd_vma) -1; | |
| 645ea6a9 | 6015 | |
| 8387904d | 6016 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6017 | lo = relocs; |
| 8387904d | 6018 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6019 | val = (bfd_vma) -1; |
| 8387904d AM |
6020 | while (lo < hi) |
| 6021 | { | |
| 6022 | look = lo + (hi - lo) / 2; | |
| 6023 | if (look->r_offset < offset) | |
| 6024 | lo = look + 1; | |
| 6025 | else if (look->r_offset > offset) | |
| 6026 | hi = look; | |
| 6027 | else | |
| 6028 | { | |
| 0ffa91dd NC |
6029 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6030 | ||
| 8387904d AM |
6031 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6032 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6033 | { | |
| 6034 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6035 | asection *sec = NULL; |
| 8387904d | 6036 | |
| b53dfeb2 AM |
6037 | if (symndx >= symtab_hdr->sh_info |
| 6038 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6039 | { |
| 6040 | struct elf_link_hash_entry **sym_hashes; | |
| 6041 | struct elf_link_hash_entry *rh; | |
| 6042 | ||
| 6043 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6044 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6045 | if (rh != NULL) |
| 6046 | { | |
| 6047 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6048 | if (rh->root.type != bfd_link_hash_defined |
| 6049 | && rh->root.type != bfd_link_hash_defweak) | |
| 6050 | break; | |
| 6051 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6052 | { |
| bb854a36 AM |
6053 | val = rh->root.u.def.value; |
| 6054 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6055 | } |
| 6056 | } | |
| 6057 | } | |
| 6058 | ||
| 6059 | if (sec == NULL) | |
| 6060 | { | |
| 6061 | Elf_Internal_Sym *sym; | |
| 6062 | ||
| 6063 | if (symndx < symtab_hdr->sh_info) | |
| 6064 | { | |
| 6065 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6066 | if (sym == NULL) | |
| 6067 | { | |
| 6068 | size_t symcnt = symtab_hdr->sh_info; | |
| 6069 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6070 | symcnt, 0, | |
| 6071 | NULL, NULL, NULL); | |
| 6072 | if (sym == NULL) | |
| 6073 | break; | |
| 6074 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6075 | } | |
| 6076 | sym += symndx; | |
| 128205bb AM |
6077 | } |
| 6078 | else | |
| 6079 | { | |
| b53dfeb2 AM |
6080 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6081 | 1, symndx, | |
| 6082 | NULL, NULL, NULL); | |
| 128205bb AM |
6083 | if (sym == NULL) |
| 6084 | break; | |
| 128205bb | 6085 | } |
| b53dfeb2 AM |
6086 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6087 | if (sec == NULL) | |
| 6088 | break; | |
| 6089 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6090 | val = sym->st_value; | |
| 8387904d | 6091 | } |
| b53dfeb2 | 6092 | |
| 8387904d AM |
6093 | val += look->r_addend; |
| 6094 | if (code_off != NULL) | |
| 6095 | *code_off = val; | |
| 6096 | if (code_sec != NULL) | |
| aef36ac1 AM |
6097 | { |
| 6098 | if (in_code_sec && *code_sec != sec) | |
| 6099 | return -1; | |
| 6100 | else | |
| 6101 | *code_sec = sec; | |
| 6102 | } | |
| b53dfeb2 | 6103 | if (sec->output_section != NULL) |
| 8387904d | 6104 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6105 | } |
| 6106 | break; | |
| 6107 | } | |
| 6108 | } | |
| 645ea6a9 | 6109 | |
| 645ea6a9 | 6110 | return val; |
| 8387904d AM |
6111 | } |
| 6112 | ||
| aef36ac1 AM |
6113 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6114 | function size and set *CODE_OFF to the function's entry point, | |
| 6115 | otherwise return zero. */ | |
| 9f296da3 | 6116 | |
| aef36ac1 AM |
6117 | static bfd_size_type |
| 6118 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6119 | bfd_vma *code_off) | |
| 9f296da3 | 6120 | { |
| aef36ac1 AM |
6121 | bfd_size_type size; |
| 6122 | ||
| 6123 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6124 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6125 | return 0; | |
| 6126 | ||
| 6127 | size = 0; | |
| 6128 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6129 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6130 | ||
| 6131 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6132 | { |
| b07bca4e AM |
6133 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6134 | bfd_vma symval = sym->value; | |
| 6135 | ||
| 6136 | if (opd != NULL | |
| 6137 | && opd->adjust != NULL | |
| 6138 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6139 | { | |
| 6140 | /* opd_entry_value will use cached relocs that have been | |
| 6141 | adjusted, but with raw symbols. That means both local | |
| 6142 | and global symbols need adjusting. */ | |
| 6143 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6144 | if (adjust == -1) | |
| 6145 | return 0; | |
| 6146 | symval += adjust; | |
| 6147 | } | |
| 6148 | ||
| 6149 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6150 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6151 | return 0; | |
| 6152 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6153 | symbol. This size has nothing to do with the code size of the | |
| 6154 | function, which is what we're supposed to return, but the | |
| 6155 | code size isn't available without looking up the dot-sym. | |
| 6156 | However, doing that would be a waste of time particularly | |
| 6157 | since elf_find_function will look at the dot-sym anyway. | |
| 6158 | Now, elf_find_function will keep the largest size of any | |
| 6159 | function sym found at the code address of interest, so return | |
| 6160 | 1 here to avoid it incorrectly caching a larger function size | |
| 6161 | for a small function. This does mean we return the wrong | |
| 6162 | size for a new-ABI function of size 24, but all that does is | |
| 6163 | disable caching for such functions. */ | |
| 6164 | if (size == 24) | |
| 6165 | size = 1; | |
| 9f296da3 | 6166 | } |
| aef36ac1 AM |
6167 | else |
| 6168 | { | |
| 6169 | if (sym->section != sec) | |
| 6170 | return 0; | |
| 6171 | *code_off = sym->value; | |
| 6172 | } | |
| 6173 | if (size == 0) | |
| 6174 | size = 1; | |
| 6175 | return size; | |
| 9f296da3 AM |
6176 | } |
| 6177 | ||
| 854b41e7 AM |
6178 | /* Return true if symbol is defined in a regular object file. */ |
| 6179 | ||
| 6180 | static bfd_boolean | |
| 6181 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6182 | { | |
| 6183 | return ((h->root.type == bfd_link_hash_defined | |
| 6184 | || h->root.type == bfd_link_hash_defweak) | |
| 6185 | && h->root.u.def.section != NULL | |
| 6186 | && h->root.u.def.section->output_section != NULL); | |
| 6187 | } | |
| 6188 | ||
| b31867b6 AM |
6189 | /* If FDH is a function descriptor symbol, return the associated code |
| 6190 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6191 | ||
| 6192 | static struct ppc_link_hash_entry * | |
| 6193 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6194 | { | |
| 6195 | if (fdh->is_func_descriptor) | |
| 6196 | { | |
| 6197 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6198 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6199 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6200 | return fh; | |
| 6201 | } | |
| 6202 | return NULL; | |
| 6203 | } | |
| 6204 | ||
| 6205 | /* If FH is a function code entry symbol, return the associated | |
| 6206 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6207 | ||
| 6208 | static struct ppc_link_hash_entry * | |
| 6209 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6210 | { | |
| 6211 | if (fh->oh != NULL | |
| 6212 | && fh->oh->is_func_descriptor) | |
| 6213 | { | |
| 6214 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6215 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6216 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6217 | return fdh; | |
| 6218 | } | |
| 6219 | return NULL; | |
| 6220 | } | |
| 6221 | ||
| 74f0fb50 AM |
6222 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6223 | ||
| 6224 | static void | |
| 6225 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6226 | { | |
| 6227 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6228 | struct bfd_sym_chain *sym; | |
| 6229 | ||
| 4dfe6ac6 NC |
6230 | if (htab == NULL) |
| 6231 | return; | |
| 6232 | ||
| 74f0fb50 AM |
6233 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6234 | { | |
| b31867b6 | 6235 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6236 | asection *sec; |
| 6237 | ||
| 6238 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6239 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6240 | if (eh == NULL) |
| 6241 | continue; | |
| 6242 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6243 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6244 | continue; | |
| 6245 | ||
| b31867b6 AM |
6246 | fh = defined_code_entry (eh); |
| 6247 | if (fh != NULL) | |
| 74f0fb50 | 6248 | { |
| b31867b6 | 6249 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6250 | sec->flags |= SEC_KEEP; |
| 6251 | } | |
| 6252 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6253 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6254 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6255 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6256 | sec->flags |= SEC_KEEP; |
| 6257 | ||
| 6258 | sec = eh->elf.root.u.def.section; | |
| 6259 | sec->flags |= SEC_KEEP; | |
| 6260 | } | |
| 6261 | } | |
| 6262 | ||
| 64d03ab5 AM |
6263 | /* Mark sections containing dynamically referenced symbols. When |
| 6264 | building shared libraries, we must assume that any visible symbol is | |
| 6265 | referenced. */ | |
| 6266 | ||
| 6267 | static bfd_boolean | |
| 6268 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6269 | { | |
| 6270 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6271 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6272 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6273 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6274 | |
| 64d03ab5 | 6275 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6276 | fdh = defined_func_desc (eh); |
| 6277 | if (fdh != NULL) | |
| 6278 | eh = fdh; | |
| 64d03ab5 AM |
6279 | |
| 6280 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6281 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6282 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6283 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6284 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6285 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6286 | && (!bfd_link_executable (info) |
| b407645f AM |
6287 | || info->export_dynamic |
| 6288 | || (eh->elf.dynamic | |
| 6289 | && d != NULL | |
| 6290 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6291 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6292 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6293 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6294 | { |
| 6295 | asection *code_sec; | |
| b31867b6 | 6296 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6297 | |
| 6298 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6299 | ||
| 6300 | /* Function descriptor syms cause the associated | |
| 6301 | function code sym section to be marked. */ | |
| b31867b6 AM |
6302 | fh = defined_code_entry (eh); |
| 6303 | if (fh != NULL) | |
| 6304 | { | |
| 6305 | code_sec = fh->elf.root.u.def.section; | |
| 6306 | code_sec->flags |= SEC_KEEP; | |
| 6307 | } | |
| 64d03ab5 AM |
6308 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6309 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6310 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6311 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6312 | code_sec->flags |= SEC_KEEP; |
| 6313 | } | |
| 6314 | ||
| 6315 | return TRUE; | |
| 6316 | } | |
| 6317 | ||
| 5bd4f169 AM |
6318 | /* Return the section that should be marked against GC for a given |
| 6319 | relocation. */ | |
| 6320 | ||
| 6321 | static asection * | |
| 4ce794b7 | 6322 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6323 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6324 | Elf_Internal_Rela *rel, |
| 6325 | struct elf_link_hash_entry *h, | |
| 6326 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6327 | { |
| ccfa59ea AM |
6328 | asection *rsec; |
| 6329 | ||
| ccfa59ea AM |
6330 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6331 | function sections, as all functions are referenced in .opd. */ | |
| 6332 | rsec = NULL; | |
| 6333 | if (get_opd_info (sec) != NULL) | |
| 6334 | return rsec; | |
| 1e2f5b6e | 6335 | |
| 5bd4f169 AM |
6336 | if (h != NULL) |
| 6337 | { | |
| 04c9666a | 6338 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6339 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6340 | |
| 4ce794b7 | 6341 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6342 | switch (r_type) |
| 5bd4f169 AM |
6343 | { |
| 6344 | case R_PPC64_GNU_VTINHERIT: | |
| 6345 | case R_PPC64_GNU_VTENTRY: | |
| 6346 | break; | |
| 6347 | ||
| 6348 | default: | |
| 6349 | switch (h->root.type) | |
| 6350 | { | |
| 6351 | case bfd_link_hash_defined: | |
| 6352 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6353 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6354 | fdh = defined_func_desc (eh); |
| 6355 | if (fdh != NULL) | |
| 6356 | eh = fdh; | |
| 1e2f5b6e AM |
6357 | |
| 6358 | /* Function descriptor syms cause the associated | |
| 6359 | function code sym section to be marked. */ | |
| b31867b6 AM |
6360 | fh = defined_code_entry (eh); |
| 6361 | if (fh != NULL) | |
| ccfa59ea AM |
6362 | { |
| 6363 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6364 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6365 | |
| b31867b6 | 6366 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6367 | } |
| 8387904d AM |
6368 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6369 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6370 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6371 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6372 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6373 | else |
| 1e2f5b6e AM |
6374 | rsec = h->root.u.def.section; |
| 6375 | break; | |
| 5bd4f169 AM |
6376 | |
| 6377 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6378 | rsec = h->root.u.c.p->section; |
| 6379 | break; | |
| 5bd4f169 AM |
6380 | |
| 6381 | default: | |
| fb34365b | 6382 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6383 | } |
| 6384 | } | |
| 6385 | } | |
| 6386 | else | |
| 6387 | { | |
| 74f0fb50 | 6388 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6389 | |
| 6390 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6391 | opd = get_opd_info (rsec); |
| 6392 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6393 | { |
| 74f0fb50 | 6394 | rsec->gc_mark = 1; |
| ccfa59ea | 6395 | |
| 51aecdc5 | 6396 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6397 | } |
| 5bd4f169 AM |
6398 | } |
| 6399 | ||
| 1e2f5b6e | 6400 | return rsec; |
| 5bd4f169 AM |
6401 | } |
| 6402 | ||
| 65f38f15 AM |
6403 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6404 | section being removed. */ | |
| 5bd4f169 | 6405 | |
| b34976b6 | 6406 | static bfd_boolean |
| 4ce794b7 AM |
6407 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6408 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6409 | { |
| 411e1bfb | 6410 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6411 | Elf_Internal_Shdr *symtab_hdr; |
| 6412 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6413 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6414 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6415 | |
| 0e1862bb | 6416 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6417 | return TRUE; |
| 6418 | ||
| 680a3378 AM |
6419 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6420 | return TRUE; | |
| 6421 | ||
| ec338859 AM |
6422 | elf_section_data (sec)->local_dynrel = NULL; |
| 6423 | ||
| 411e1bfb | 6424 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6425 | if (htab == NULL) |
| 6426 | return FALSE; | |
| 6427 | ||
| 0ffa91dd | 6428 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6429 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6430 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6431 | |
| 6432 | relend = relocs + sec->reloc_count; | |
| 6433 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6434 | { |
| 6435 | unsigned long r_symndx; | |
| 04c9666a | 6436 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6437 | struct elf_link_hash_entry *h = NULL; |
| f961d9dd | 6438 | unsigned char tls_type = 0; |
| 5bd4f169 | 6439 | |
| a33d1f77 | 6440 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6441 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6442 | if (r_symndx >= symtab_hdr->sh_info) |
| 6443 | { | |
| 6444 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6445 | struct elf_dyn_relocs **pp; |
| 6446 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6447 | |
| 6448 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6449 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6450 | eh = (struct ppc_link_hash_entry *) h; |
| 6451 | ||
| 6452 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6453 | if (p->sec == sec) | |
| 6454 | { | |
| 6455 | /* Everything must go for SEC. */ | |
| 6456 | *pp = p->next; | |
| 6457 | break; | |
| 6458 | } | |
| 6459 | } | |
| 6460 | ||
| e054468f AM |
6461 | if (is_branch_reloc (r_type)) |
| 6462 | { | |
| 6463 | struct plt_entry **ifunc = NULL; | |
| 6464 | if (h != NULL) | |
| 6465 | { | |
| 6466 | if (h->type == STT_GNU_IFUNC) | |
| 6467 | ifunc = &h->plt.plist; | |
| 6468 | } | |
| 6469 | else if (local_got_ents != NULL) | |
| 6470 | { | |
| 6471 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6472 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 6473 | unsigned char *local_got_tls_masks = (unsigned char *) |
| e054468f AM |
6474 | (local_plt + symtab_hdr->sh_info); |
| 6475 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6476 | ifunc = local_plt + r_symndx; | |
| 6477 | } | |
| 6478 | if (ifunc != NULL) | |
| 6479 | { | |
| 6480 | struct plt_entry *ent; | |
| 6481 | ||
| 6482 | for (ent = *ifunc; ent != NULL; ent = ent->next) | |
| 6483 | if (ent->addend == rel->r_addend) | |
| 6484 | break; | |
| 6485 | if (ent == NULL) | |
| 6486 | abort (); | |
| 6487 | if (ent->plt.refcount > 0) | |
| 6488 | ent->plt.refcount -= 1; | |
| 6489 | continue; | |
| 6490 | } | |
| 6491 | } | |
| 6492 | ||
| a33d1f77 AM |
6493 | switch (r_type) |
| 6494 | { | |
| 411e1bfb AM |
6495 | case R_PPC64_GOT_TLSLD16: |
| 6496 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6497 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6498 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6499 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6500 | goto dogot; |
| 6501 | ||
| 6502 | case R_PPC64_GOT_TLSGD16: | |
| 6503 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6504 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6505 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6506 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6507 | goto dogot; |
| 6508 | ||
| 6509 | case R_PPC64_GOT_TPREL16_DS: | |
| 6510 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6511 | case R_PPC64_GOT_TPREL16_HI: | |
| 6512 | case R_PPC64_GOT_TPREL16_HA: | |
| 6513 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6514 | goto dogot; | |
| 6515 | ||
| 6516 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6517 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6518 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6519 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6520 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6521 | goto dogot; | |
| 6522 | ||
| a33d1f77 AM |
6523 | case R_PPC64_GOT16: |
| 6524 | case R_PPC64_GOT16_DS: | |
| 6525 | case R_PPC64_GOT16_HA: | |
| 6526 | case R_PPC64_GOT16_HI: | |
| 6527 | case R_PPC64_GOT16_LO: | |
| 6528 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6529 | dogot: |
| 6530 | { | |
| 6531 | struct got_entry *ent; | |
| 6532 | ||
| 58ac9f71 AM |
6533 | if (h != NULL) |
| 6534 | ent = h->got.glist; | |
| 411e1bfb AM |
6535 | else |
| 6536 | ent = local_got_ents[r_symndx]; | |
| 6537 | ||
| 6538 | for (; ent != NULL; ent = ent->next) | |
| 6539 | if (ent->addend == rel->r_addend | |
| e717da7e | 6540 | && ent->owner == abfd |
| 411e1bfb AM |
6541 | && ent->tls_type == tls_type) |
| 6542 | break; | |
| 6543 | if (ent == NULL) | |
| 6544 | abort (); | |
| 6545 | if (ent->got.refcount > 0) | |
| 6546 | ent->got.refcount -= 1; | |
| 6547 | } | |
| a33d1f77 | 6548 | break; |
| 65f38f15 | 6549 | |
| a33d1f77 AM |
6550 | case R_PPC64_PLT16_HA: |
| 6551 | case R_PPC64_PLT16_HI: | |
| 6552 | case R_PPC64_PLT16_LO: | |
| 6553 | case R_PPC64_PLT32: | |
| 6554 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6555 | case R_PPC64_REL14: |
| 6556 | case R_PPC64_REL14_BRNTAKEN: | |
| 6557 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6558 | case R_PPC64_REL24: |
| 58ac9f71 | 6559 | if (h != NULL) |
| 5d1634d7 | 6560 | { |
| 411e1bfb AM |
6561 | struct plt_entry *ent; |
| 6562 | ||
| 411e1bfb AM |
6563 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 6564 | if (ent->addend == rel->r_addend) | |
| 6565 | break; | |
| 7c6c1722 | 6566 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6567 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6568 | } |
| e86ce104 | 6569 | break; |
| 5d1634d7 | 6570 | |
| a33d1f77 AM |
6571 | default: |
| 6572 | break; | |
| 6573 | } | |
| 6574 | } | |
| b34976b6 | 6575 | return TRUE; |
| 5bd4f169 AM |
6576 | } |
| 6577 | ||
| deb0e272 AM |
6578 | /* The maximum size of .sfpr. */ |
| 6579 | #define SFPR_MAX (218*4) | |
| 6580 | ||
| 6581 | struct sfpr_def_parms | |
| 6582 | { | |
| 699733f6 AM |
6583 | const char name[12]; |
| 6584 | unsigned char lo, hi; | |
| deb0e272 AM |
6585 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6586 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6587 | }; | |
| 6588 | ||
| a4b6fadd AM |
6589 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6590 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6591 | instead. */ | |
| deb0e272 | 6592 | |
| 4dfe6ac6 | 6593 | static bfd_boolean |
| a4b6fadd AM |
6594 | sfpr_define (struct bfd_link_info *info, |
| 6595 | const struct sfpr_def_parms *parm, | |
| 6596 | asection *stub_sec) | |
| deb0e272 AM |
6597 | { |
| 6598 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6599 | unsigned int i; | |
| 6600 | size_t len = strlen (parm->name); | |
| 6601 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6602 | char sym[16]; |
| deb0e272 | 6603 | |
| 4dfe6ac6 NC |
6604 | if (htab == NULL) |
| 6605 | return FALSE; | |
| 6606 | ||
| deb0e272 AM |
6607 | memcpy (sym, parm->name, len); |
| 6608 | sym[len + 2] = 0; | |
| 6609 | ||
| 6610 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6611 | { | |
| a4b6fadd | 6612 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6613 | |
| 6614 | sym[len + 0] = i / 10 + '0'; | |
| 6615 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd AM |
6616 | h = (struct ppc_link_hash_entry *) |
| 6617 | elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
| 6618 | if (stub_sec != NULL) | |
| deb0e272 | 6619 | { |
| a4b6fadd AM |
6620 | if (h != NULL |
| 6621 | && h->elf.root.type == bfd_link_hash_defined | |
| 6622 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6623 | { | |
| 6624 | struct elf_link_hash_entry *s; | |
| 6625 | char buf[32]; | |
| 6626 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6627 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6628 | if (s == NULL) | |
| 6629 | return FALSE; | |
| 6630 | if (s->root.type == bfd_link_hash_new | |
| 6631 | || (s->root.type = bfd_link_hash_defined | |
| 6632 | && s->root.u.def.section == stub_sec)) | |
| 6633 | { | |
| 6634 | s->root.type = bfd_link_hash_defined; | |
| 6635 | s->root.u.def.section = stub_sec; | |
| 6636 | s->root.u.def.value = (stub_sec->size | |
| 6637 | + h->elf.root.u.def.value); | |
| 6638 | s->ref_regular = 1; | |
| 6639 | s->def_regular = 1; | |
| 6640 | s->ref_regular_nonweak = 1; | |
| 6641 | s->forced_local = 1; | |
| 6642 | s->non_elf = 0; | |
| 6643 | s->root.linker_def = 1; | |
| 6644 | } | |
| 6645 | } | |
| 6646 | continue; | |
| 6647 | } | |
| 6648 | if (h != NULL) | |
| 6649 | { | |
| 6650 | h->save_res = 1; | |
| 6651 | if (!h->elf.def_regular) | |
| deb0e272 | 6652 | { |
| a4b6fadd AM |
6653 | h->elf.root.type = bfd_link_hash_defined; |
| 6654 | h->elf.root.u.def.section = htab->sfpr; | |
| 6655 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6656 | h->elf.type = STT_FUNC; | |
| 6657 | h->elf.def_regular = 1; | |
| 6658 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); | |
| 6659 | writing = TRUE; | |
| deb0e272 | 6660 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6661 | { |
| 6662 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6663 | if (htab->sfpr->contents == NULL) | |
| 6664 | return FALSE; | |
| 6665 | } | |
| deb0e272 AM |
6666 | } |
| 6667 | } | |
| 6668 | if (writing) | |
| 6669 | { | |
| 6670 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6671 | if (i != parm->hi) | |
| 6672 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6673 | else | |
| 6674 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6675 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6676 | } | |
| 6677 | } | |
| 6678 | ||
| 6679 | return TRUE; | |
| 6680 | } | |
| 6681 | ||
| 6682 | static bfd_byte * | |
| 6683 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6684 | { | |
| 6685 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6686 | return p + 4; | |
| 6687 | } | |
| 6688 | ||
| 6689 | static bfd_byte * | |
| 6690 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6691 | { | |
| 6692 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6693 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6694 | p = p + 4; |
| 6695 | bfd_put_32 (abfd, BLR, p); | |
| 6696 | return p + 4; | |
| 6697 | } | |
| 6698 | ||
| 6699 | static bfd_byte * | |
| 6700 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6701 | { | |
| 6702 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6703 | return p + 4; | |
| 6704 | } | |
| 6705 | ||
| 6706 | static bfd_byte * | |
| 6707 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6708 | { | |
| a078d95a | 6709 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6710 | p = p + 4; |
| 6711 | p = restgpr0 (abfd, p, r); | |
| 6712 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6713 | p = p + 4; | |
| 6714 | if (r == 29) | |
| 6715 | { | |
| 6716 | p = restgpr0 (abfd, p, 30); | |
| 6717 | p = restgpr0 (abfd, p, 31); | |
| 6718 | } | |
| 6719 | bfd_put_32 (abfd, BLR, p); | |
| 6720 | return p + 4; | |
| 6721 | } | |
| 6722 | ||
| 6723 | static bfd_byte * | |
| 6724 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6725 | { | |
| 6726 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6727 | return p + 4; | |
| 6728 | } | |
| 6729 | ||
| 6730 | static bfd_byte * | |
| 6731 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6732 | { | |
| 6733 | p = savegpr1 (abfd, p, r); | |
| 6734 | bfd_put_32 (abfd, BLR, p); | |
| 6735 | return p + 4; | |
| 6736 | } | |
| 6737 | ||
| 6738 | static bfd_byte * | |
| 6739 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6740 | { | |
| 6741 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6742 | return p + 4; | |
| 6743 | } | |
| 6744 | ||
| 6745 | static bfd_byte * | |
| 6746 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6747 | { | |
| 6748 | p = restgpr1 (abfd, p, r); | |
| 6749 | bfd_put_32 (abfd, BLR, p); | |
| 6750 | return p + 4; | |
| 6751 | } | |
| 6752 | ||
| 6753 | static bfd_byte * | |
| 6754 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6755 | { | |
| 6756 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6757 | return p + 4; | |
| 6758 | } | |
| 6759 | ||
| 6760 | static bfd_byte * | |
| 6761 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6762 | { | |
| 6763 | p = savefpr (abfd, p, r); | |
| a078d95a | 6764 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6765 | p = p + 4; |
| 6766 | bfd_put_32 (abfd, BLR, p); | |
| 6767 | return p + 4; | |
| 6768 | } | |
| 6769 | ||
| 6770 | static bfd_byte * | |
| 6771 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6772 | { | |
| 6773 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6774 | return p + 4; | |
| 6775 | } | |
| 6776 | ||
| 6777 | static bfd_byte * | |
| 6778 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6779 | { | |
| a078d95a | 6780 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6781 | p = p + 4; |
| 6782 | p = restfpr (abfd, p, r); | |
| 6783 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6784 | p = p + 4; | |
| 6785 | if (r == 29) | |
| 6786 | { | |
| 6787 | p = restfpr (abfd, p, 30); | |
| 6788 | p = restfpr (abfd, p, 31); | |
| 6789 | } | |
| 6790 | bfd_put_32 (abfd, BLR, p); | |
| 6791 | return p + 4; | |
| 6792 | } | |
| 6793 | ||
| 6794 | static bfd_byte * | |
| 6795 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6796 | { | |
| 6797 | p = savefpr (abfd, p, r); | |
| 6798 | bfd_put_32 (abfd, BLR, p); | |
| 6799 | return p + 4; | |
| 6800 | } | |
| 6801 | ||
| 6802 | static bfd_byte * | |
| 6803 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6804 | { | |
| 6805 | p = restfpr (abfd, p, r); | |
| 6806 | bfd_put_32 (abfd, BLR, p); | |
| 6807 | return p + 4; | |
| 6808 | } | |
| 6809 | ||
| 6810 | static bfd_byte * | |
| 6811 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6812 | { | |
| 6813 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6814 | p = p + 4; | |
| 6815 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6816 | return p + 4; | |
| 6817 | } | |
| 6818 | ||
| 6819 | static bfd_byte * | |
| 6820 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6821 | { | |
| 6822 | p = savevr (abfd, p, r); | |
| 6823 | bfd_put_32 (abfd, BLR, p); | |
| 6824 | return p + 4; | |
| 6825 | } | |
| 6826 | ||
| 6827 | static bfd_byte * | |
| 6828 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6829 | { | |
| 6830 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6831 | p = p + 4; | |
| 6832 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6833 | return p + 4; | |
| 6834 | } | |
| 6835 | ||
| 6836 | static bfd_byte * | |
| 6837 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6838 | { | |
| 6839 | p = restvr (abfd, p, r); | |
| 6840 | bfd_put_32 (abfd, BLR, p); | |
| 6841 | return p + 4; | |
| 6842 | } | |
| 6843 | ||
| e86ce104 AM |
6844 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6845 | information on function code symbol entries to their corresponding | |
| 6846 | function descriptor symbol entries. */ | |
| deb0e272 | 6847 | |
| b34976b6 | 6848 | static bfd_boolean |
| 4ce794b7 | 6849 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6850 | { |
| e86ce104 | 6851 | struct bfd_link_info *info; |
| 65f38f15 | 6852 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6853 | struct plt_entry *ent; |
| 50bc7936 AM |
6854 | struct ppc_link_hash_entry *fh; |
| 6855 | struct ppc_link_hash_entry *fdh; | |
| 6856 | bfd_boolean force_local; | |
| 5bd4f169 | 6857 | |
| 50bc7936 AM |
6858 | fh = (struct ppc_link_hash_entry *) h; |
| 6859 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6860 | return TRUE; |
| e86ce104 | 6861 | |
| 4ce794b7 | 6862 | info = inf; |
| 65f38f15 | 6863 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6864 | if (htab == NULL) |
| 6865 | return FALSE; | |
| 5bd4f169 | 6866 | |
| c09bdfe5 AM |
6867 | /* Resolve undefined references to dot-symbols as the value |
| 6868 | in the function descriptor, if we have one in a regular object. | |
| 6869 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6870 | in dynamic objects are handled elsewhere. */ | |
| 6871 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6872 | && fh->was_undefined | |
| b31867b6 AM |
6873 | && (fdh = defined_func_desc (fh)) != NULL |
| 6874 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6875 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6876 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6877 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6878 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6879 | { |
| b31867b6 | 6880 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6881 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6882 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6883 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6884 | } |
| 6885 | ||
| e86ce104 AM |
6886 | /* If this is a function code symbol, transfer dynamic linking |
| 6887 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6888 | if (!fh->is_func) |
| b34976b6 | 6889 | return TRUE; |
| e86ce104 | 6890 | |
| 50bc7936 | 6891 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6892 | if (ent->plt.refcount > 0) |
| 6893 | break; | |
| 50bc7936 AM |
6894 | if (ent == NULL |
| 6895 | || fh->elf.root.root.string[0] != '.' | |
| 6896 | || fh->elf.root.root.string[1] == '\0') | |
| 6897 | return TRUE; | |
| 5bd4f169 | 6898 | |
| 50bc7936 AM |
6899 | /* Find the corresponding function descriptor symbol. Create it |
| 6900 | as undefined if necessary. */ | |
| 5bd4f169 | 6901 | |
| b31867b6 | 6902 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6903 | if (fdh == NULL |
| 0e1862bb | 6904 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6905 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6906 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6907 | { | |
| 908b32fc | 6908 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6909 | if (fdh == NULL) |
| 6910 | return FALSE; | |
| 50bc7936 | 6911 | } |
| 648cca2c | 6912 | |
| 908b32fc | 6913 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6914 | code symbol is strong undefined, make the fake sym the same. |
| 6915 | If the function code symbol is defined, then force the fake | |
| 6916 | descriptor local; We can't support overriding of symbols in a | |
| 6917 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6918 | |
| 6919 | if (fdh != NULL | |
| 6920 | && fdh->fake | |
| 433817dd | 6921 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6922 | { |
| 433817dd AM |
6923 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6924 | { | |
| 6925 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6926 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6927 | } | |
| 6928 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6929 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6930 | { | |
| 6931 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6932 | } | |
| 908b32fc AM |
6933 | } |
| 6934 | ||
| 50bc7936 | 6935 | if (fdh != NULL |
| f5385ebf | 6936 | && !fdh->elf.forced_local |
| 0e1862bb | 6937 | && (!bfd_link_executable (info) |
| f5385ebf AM |
6938 | || fdh->elf.def_dynamic |
| 6939 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6940 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6941 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6942 | { | |
| 6943 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 6944 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 6945 | return FALSE; |
| f5385ebf AM |
6946 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6947 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6948 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6949 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 6950 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 6951 | { |
| 40d16e0b | 6952 | move_plt_plist (fh, fdh); |
| f5385ebf | 6953 | fdh->elf.needs_plt = 1; |
| e86ce104 | 6954 | } |
| 50bc7936 | 6955 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
6956 | fdh->oh = fh; |
| 6957 | fh->oh = fdh; | |
| e86ce104 AM |
6958 | } |
| 6959 | ||
| 50bc7936 AM |
6960 | /* Now that the info is on the function descriptor, clear the |
| 6961 | function code sym info. Any function code syms for which we | |
| 6962 | don't have a definition in a regular file, we force local. | |
| 6963 | This prevents a shared library from exporting syms that have | |
| 6964 | been imported from another library. Function code syms that | |
| 6965 | are really in the library we must leave global to prevent the | |
| 6966 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6967 | force_local = (!fh->elf.def_regular |
| 6968 | || fdh == NULL | |
| 6969 | || !fdh->elf.def_regular | |
| 6970 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6971 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6972 | ||
| b34976b6 | 6973 | return TRUE; |
| e86ce104 | 6974 | } |
| 40b8271b | 6975 | |
| a4b6fadd AM |
6976 | static const struct sfpr_def_parms save_res_funcs[] = |
| 6977 | { | |
| 6978 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6979 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6980 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6981 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6982 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6983 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6984 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6985 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6986 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6987 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6988 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6989 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6990 | }; | |
| 6991 | ||
| e86ce104 | 6992 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6993 | this hook to a) provide some gcc support functions, and b) transfer |
| 6994 | dynamic linking information gathered so far on function code symbol | |
| 6995 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6996 | |
| b34976b6 | 6997 | static bfd_boolean |
| 4ce794b7 AM |
6998 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 6999 | struct bfd_link_info *info) | |
| e86ce104 AM |
7000 | { |
| 7001 | struct ppc_link_hash_table *htab; | |
| 82bd7b59 | 7002 | unsigned int i; |
| e86ce104 AM |
7003 | |
| 7004 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7005 | if (htab == NULL) |
| 7006 | return FALSE; | |
| 7007 | ||
| 0e1862bb | 7008 | if (!bfd_link_relocatable (info) |
| 5295321c | 7009 | && htab->elf.hgot != NULL) |
| dba6fa9b AM |
7010 | { |
| 7011 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7012 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7013 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7014 | if (!htab->elf.hgot->def_regular |
| 7015 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7016 | { | |
| 7017 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7018 | htab->elf.hgot->root.u.def.value = 0; | |
| 7019 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7020 | htab->elf.hgot->def_regular = 1; | |
| 7021 | htab->elf.hgot->root.linker_def = 1; | |
| 7022 | } | |
| dba6fa9b | 7023 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7024 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7025 | | STV_HIDDEN); | |
| 7026 | } | |
| c66bb0ee | 7027 | |
| 82bd7b59 AM |
7028 | if (htab->sfpr == NULL) |
| 7029 | /* We don't have any relocs. */ | |
| b34976b6 | 7030 | return TRUE; |
| 82bd7b59 | 7031 | |
| deb0e272 AM |
7032 | /* Provide any missing _save* and _rest* functions. */ |
| 7033 | htab->sfpr->size = 0; | |
| 7d4c687d | 7034 | if (htab->params->save_restore_funcs) |
| a4b6fadd AM |
7035 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) |
| 7036 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 27fc25a1 | 7037 | return FALSE; |
| 82bd7b59 | 7038 | |
| 4ce794b7 | 7039 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 7040 | |
| eea6121a | 7041 | if (htab->sfpr->size == 0) |
| 8423293d | 7042 | htab->sfpr->flags |= SEC_EXCLUDE; |
| 82bd7b59 | 7043 | |
| b34976b6 | 7044 | return TRUE; |
| e86ce104 AM |
7045 | } |
| 7046 | ||
| a345bc8d AM |
7047 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
| 7048 | ||
| 7049 | static bfd_boolean | |
| 7050 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7051 | { | |
| 7052 | struct ppc_link_hash_entry *eh; | |
| 7053 | struct elf_dyn_relocs *p; | |
| 7054 | ||
| 7055 | eh = (struct ppc_link_hash_entry *) h; | |
| 7056 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7057 | { | |
| 7058 | asection *s = p->sec->output_section; | |
| 7059 | ||
| 7060 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7061 | return TRUE; | |
| 7062 | } | |
| 7063 | return FALSE; | |
| 7064 | } | |
| 7065 | ||
| e86ce104 AM |
7066 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7067 | regular object. The current definition is in some section of the | |
| 7068 | dynamic object, but we're not including those sections. We have to | |
| 7069 | change the definition to something the rest of the link can | |
| 7070 | understand. */ | |
| 7071 | ||
| b34976b6 | 7072 | static bfd_boolean |
| 4ce794b7 AM |
7073 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7074 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7075 | { |
| 7076 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7077 | asection *s; |
| e86ce104 AM |
7078 | |
| 7079 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7080 | if (htab == NULL) |
| 7081 | return FALSE; | |
| e86ce104 AM |
7082 | |
| 7083 | /* Deal with function syms. */ | |
| 7084 | if (h->type == STT_FUNC | |
| e054468f | 7085 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7086 | || h->needs_plt) |
| e86ce104 AM |
7087 | { |
| 7088 | /* Clear procedure linkage table information for any symbol that | |
| 7089 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7090 | struct plt_entry *ent; |
| 7091 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7092 | if (ent->plt.refcount > 0) | |
| 7093 | break; | |
| 8387904d | 7094 | if (ent == NULL |
| e054468f AM |
7095 | || (h->type != STT_GNU_IFUNC |
| 7096 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7097 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| a4b6fadd AM |
7098 | && h->root.type == bfd_link_hash_undefweak))) |
| 7099 | || ((struct ppc_link_hash_entry *) h)->save_res) | |
| 40b8271b | 7100 | { |
| 411e1bfb | 7101 | h->plt.plist = NULL; |
| f5385ebf | 7102 | h->needs_plt = 0; |
| d1eca1e4 | 7103 | h->pointer_equality_needed = 0; |
| 40b8271b | 7104 | } |
| a345bc8d AM |
7105 | else if (abiversion (info->output_bfd) == 2) |
| 7106 | { | |
| d1eca1e4 AM |
7107 | /* Taking a function's address in a read/write section |
| 7108 | doesn't require us to define the function symbol in the | |
| 7109 | executable on a global entry stub. A dynamic reloc can | |
| 7110 | be used instead. */ | |
| 7111 | if (h->pointer_equality_needed | |
| 1009ef28 | 7112 | && h->type != STT_GNU_IFUNC |
| d1eca1e4 AM |
7113 | && !readonly_dynrelocs (h)) |
| 7114 | { | |
| 7115 | h->pointer_equality_needed = 0; | |
| 7116 | h->non_got_ref = 0; | |
| 7117 | } | |
| 7118 | ||
| a345bc8d AM |
7119 | /* After adjust_dynamic_symbol, non_got_ref set in the |
| 7120 | non-shared case means that we have allocated space in | |
| 7121 | .dynbss for the symbol and thus dyn_relocs for this | |
| 7122 | symbol should be discarded. | |
| 7123 | If we get here we know we are making a PLT entry for this | |
| 7124 | symbol, and in an executable we'd normally resolve | |
| 7125 | relocations against this symbol to the PLT entry. Allow | |
| 7126 | dynamic relocs if the reference is weak, and the dynamic | |
| 7127 | relocs will not cause text relocation. */ | |
| d1eca1e4 AM |
7128 | else if (!h->ref_regular_nonweak |
| 7129 | && h->non_got_ref | |
| 7130 | && h->type != STT_GNU_IFUNC | |
| 7131 | && !readonly_dynrelocs (h)) | |
| a345bc8d AM |
7132 | h->non_got_ref = 0; |
| 7133 | ||
| 7134 | /* If making a plt entry, then we don't need copy relocs. */ | |
| 7135 | return TRUE; | |
| 7136 | } | |
| 5bd4f169 | 7137 | } |
| bbd7ec4a | 7138 | else |
| 411e1bfb | 7139 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7140 | |
| 7141 | /* If this is a weak symbol, and there is a real definition, the | |
| 7142 | processor independent code will have arranged for us to see the | |
| 7143 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7144 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7145 | { |
| f6e332e6 AM |
7146 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7147 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7148 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7149 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7150 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7151 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7152 | return TRUE; |
| 5bd4f169 AM |
7153 | } |
| 7154 | ||
| 5bd4f169 AM |
7155 | /* If we are creating a shared library, we must presume that the |
| 7156 | only references to the symbol are via the global offset table. | |
| 7157 | For such cases we need not do anything here; the relocations will | |
| 7158 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7159 | if (bfd_link_pic (info)) |
| b34976b6 | 7160 | return TRUE; |
| 5bd4f169 | 7161 | |
| 65f38f15 AM |
7162 | /* If there are no references to this symbol that do not use the |
| 7163 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7164 | if (!h->non_got_ref) |
| b34976b6 | 7165 | return TRUE; |
| 65f38f15 | 7166 | |
| b186458a JJ |
7167 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 7168 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 7169 | return TRUE; | |
| 7170 | ||
| a127494f AM |
7171 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7172 | if (info->nocopyreloc) | |
| 7173 | { | |
| 7174 | h->non_got_ref = 0; | |
| 7175 | return TRUE; | |
| 7176 | } | |
| 7177 | ||
| a345bc8d AM |
7178 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7179 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 7180 | if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h)) | |
| 65f38f15 | 7181 | { |
| a345bc8d AM |
7182 | h->non_got_ref = 0; |
| 7183 | return TRUE; | |
| 65f38f15 AM |
7184 | } |
| 7185 | ||
| a127494f AM |
7186 | /* Protected variables do not work with .dynbss. The copy in |
| 7187 | .dynbss won't be used by the shared library with the protected | |
| 7188 | definition for the variable. Text relocations are preferable | |
| 7189 | to an incorrect program. */ | |
| 7190 | if (h->protected_def) | |
| 7191 | { | |
| 7192 | h->non_got_ref = 0; | |
| 7193 | return TRUE; | |
| 7194 | } | |
| 7195 | ||
| 5d35169e | 7196 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7197 | { |
| 7198 | /* We should never get here, but unfortunately there are versions | |
| 7199 | of gcc out there that improperly (for this ABI) put initialized | |
| 7200 | function pointers, vtable refs and suchlike in read-only | |
| 7201 | sections. Allow them to proceed, but warn that this might | |
| 7202 | break at runtime. */ | |
| 25f53a85 | 7203 | info->callbacks->einfo |
| bc30df16 | 7204 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7205 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7206 | h->root.root.string); |
| 7207 | } | |
| 5d35169e AM |
7208 | |
| 7209 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7210 | is not a function. */ | |
| 7211 | ||
| 5bd4f169 AM |
7212 | /* We must allocate the symbol in our .dynbss section, which will |
| 7213 | become part of the .bss section of the executable. There will be | |
| 7214 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7215 | object will contain position independent code, so all references | |
| 7216 | from the dynamic object to this symbol will go through the global | |
| 7217 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7218 | determine the address it must put in the global offset table, so | |
| 7219 | both the dynamic object and the regular object will refer to the | |
| 7220 | same memory location for the variable. */ | |
| 5bd4f169 | 7221 | |
| 04c9666a AM |
7222 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7223 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7224 | runtime process image. We need to remember the offset into the |
| 7225 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7226 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7227 | { |
| eea6121a | 7228 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7229 | h->needs_copy = 1; |
| 5bd4f169 AM |
7230 | } |
| 7231 | ||
| 4ce794b7 | 7232 | s = htab->dynbss; |
| 5bd4f169 | 7233 | |
| 6cabe1ea | 7234 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7235 | } |
| 7236 | ||
| e86ce104 AM |
7237 | /* If given a function descriptor symbol, hide both the function code |
| 7238 | sym and the descriptor. */ | |
| 7239 | static void | |
| 4ce794b7 AM |
7240 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7241 | struct elf_link_hash_entry *h, | |
| 7242 | bfd_boolean force_local) | |
| e86ce104 | 7243 | { |
| 34814b9f | 7244 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7245 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7246 | ||
| 34814b9f AM |
7247 | eh = (struct ppc_link_hash_entry *) h; |
| 7248 | if (eh->is_func_descriptor) | |
| e86ce104 | 7249 | { |
| 34814b9f | 7250 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7251 | |
| 721956f4 | 7252 | if (fh == NULL) |
| d1329ca3 AM |
7253 | { |
| 7254 | const char *p, *q; | |
| 7255 | struct ppc_link_hash_table *htab; | |
| 7256 | char save; | |
| 7257 | ||
| 7258 | /* We aren't supposed to use alloca in BFD because on | |
| 7259 | systems which do not have alloca the version in libiberty | |
| 7260 | calls xmalloc, which might cause the program to crash | |
| 7261 | when it runs out of memory. This function doesn't have a | |
| 7262 | return status, so there's no way to gracefully return an | |
| 7263 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7264 | accessed; It's either a string in an ELF string table, |
| 7265 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7266 | |
| 34814b9f | 7267 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7268 | save = *p; |
| 7269 | *(char *) p = '.'; | |
| 7270 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7271 | if (htab == NULL) |
| 7272 | return; | |
| 7273 | ||
| 34814b9f AM |
7274 | fh = (struct ppc_link_hash_entry *) |
| 7275 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7276 | *(char *) p = save; |
| 7277 | ||
| 7278 | /* Unfortunately, if it so happens that the string we were | |
| 7279 | looking for was allocated immediately before this string, | |
| 7280 | then we overwrote the string terminator. That's the only | |
| 7281 | reason the lookup should fail. */ | |
| 7282 | if (fh == NULL) | |
| 7283 | { | |
| 34814b9f AM |
7284 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7285 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7286 | --q, --p; |
| 34814b9f AM |
7287 | if (q < eh->elf.root.root.string && *p == '.') |
| 7288 | fh = (struct ppc_link_hash_entry *) | |
| 7289 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7290 | } |
| 7291 | if (fh != NULL) | |
| 7292 | { | |
| 34814b9f AM |
7293 | eh->oh = fh; |
| 7294 | fh->oh = eh; | |
| d1329ca3 AM |
7295 | } |
| 7296 | } | |
| e86ce104 | 7297 | if (fh != NULL) |
| 34814b9f | 7298 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7299 | } |
| 7300 | } | |
| 7301 | ||
| 411e1bfb | 7302 | static bfd_boolean |
| 8843416a AM |
7303 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7304 | Elf_Internal_Sym **symp, | |
| 7305 | asection **symsecp, | |
| f961d9dd | 7306 | unsigned char **tls_maskp, |
| 8843416a AM |
7307 | Elf_Internal_Sym **locsymsp, |
| 7308 | unsigned long r_symndx, | |
| 7309 | bfd *ibfd) | |
| 411e1bfb | 7310 | { |
| 0ffa91dd | 7311 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7312 | |
| 7313 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7314 | { | |
| 7315 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7316 | struct elf_link_hash_entry *h; | |
| 7317 | ||
| 7318 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7319 | h = elf_follow_link (h); |
| 411e1bfb AM |
7320 | |
| 7321 | if (hp != NULL) | |
| 7322 | *hp = h; | |
| 7323 | ||
| 7324 | if (symp != NULL) | |
| 7325 | *symp = NULL; | |
| 7326 | ||
| 7327 | if (symsecp != NULL) | |
| 7328 | { | |
| 7329 | asection *symsec = NULL; | |
| 7330 | if (h->root.type == bfd_link_hash_defined | |
| 7331 | || h->root.type == bfd_link_hash_defweak) | |
| 7332 | symsec = h->root.u.def.section; | |
| 7333 | *symsecp = symsec; | |
| 7334 | } | |
| 7335 | ||
| e7b938ca | 7336 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7337 | { |
| 7338 | struct ppc_link_hash_entry *eh; | |
| 7339 | ||
| 7340 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7341 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7342 | } |
| 7343 | } | |
| 7344 | else | |
| 7345 | { | |
| 7346 | Elf_Internal_Sym *sym; | |
| 7347 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7348 | ||
| 7349 | if (locsyms == NULL) | |
| 7350 | { | |
| 7351 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7352 | if (locsyms == NULL) | |
| 7353 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7354 | symtab_hdr->sh_info, | |
| 7355 | 0, NULL, NULL, NULL); | |
| 7356 | if (locsyms == NULL) | |
| 7357 | return FALSE; | |
| 7358 | *locsymsp = locsyms; | |
| 7359 | } | |
| 7360 | sym = locsyms + r_symndx; | |
| 7361 | ||
| 7362 | if (hp != NULL) | |
| 7363 | *hp = NULL; | |
| 7364 | ||
| 7365 | if (symp != NULL) | |
| 7366 | *symp = sym; | |
| 7367 | ||
| 7368 | if (symsecp != NULL) | |
| cb33740c | 7369 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7370 | |
| e7b938ca | 7371 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7372 | { |
| 7373 | struct got_entry **lgot_ents; | |
| f961d9dd | 7374 | unsigned char *tls_mask; |
| 411e1bfb | 7375 | |
| e7b938ca | 7376 | tls_mask = NULL; |
| 411e1bfb AM |
7377 | lgot_ents = elf_local_got_ents (ibfd); |
| 7378 | if (lgot_ents != NULL) | |
| 7379 | { | |
| e054468f AM |
7380 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7381 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7382 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7383 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7384 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7385 | } |
| e7b938ca | 7386 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7387 | } |
| 7388 | } | |
| 7389 | return TRUE; | |
| 7390 | } | |
| 7391 | ||
| e7b938ca | 7392 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7393 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7394 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7395 | |
| 7396 | static int | |
| f961d9dd | 7397 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7398 | unsigned long *toc_symndx, |
| 7399 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7400 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7401 | const Elf_Internal_Rela *rel, |
| 7402 | bfd *ibfd) | |
| 411e1bfb AM |
7403 | { |
| 7404 | unsigned long r_symndx; | |
| 0d4792f7 | 7405 | int next_r; |
| 411e1bfb AM |
7406 | struct elf_link_hash_entry *h; |
| 7407 | Elf_Internal_Sym *sym; | |
| 7408 | asection *sec; | |
| 7409 | bfd_vma off; | |
| 7410 | ||
| 7411 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7412 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7413 | return 0; |
| 411e1bfb | 7414 | |
| e7b938ca | 7415 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7416 | || sec == NULL |
| 6bee8834 | 7417 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7418 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7419 | return 1; |
| 411e1bfb AM |
7420 | |
| 7421 | /* Look inside a TOC section too. */ | |
| 7422 | if (h != NULL) | |
| 7423 | { | |
| 7424 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7425 | off = h->root.u.def.value; | |
| 7426 | } | |
| 7427 | else | |
| 7428 | off = sym->st_value; | |
| 7429 | off += rel->r_addend; | |
| 7430 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7431 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7432 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7433 | if (toc_symndx != NULL) |
| 7434 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7435 | if (toc_addend != NULL) |
| 7436 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7437 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7438 | return 0; | |
| 854b41e7 | 7439 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7440 | && (next_r == -1 || next_r == -2)) |
| 7441 | return 1 - next_r; | |
| 951fd09b | 7442 | return 1; |
| 411e1bfb AM |
7443 | } |
| 7444 | ||
| 3b421ab3 AM |
7445 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7446 | ||
| 7447 | static struct tocsave_entry * | |
| 7448 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7449 | enum insert_option insert, | |
| 7450 | Elf_Internal_Sym **local_syms, | |
| 7451 | const Elf_Internal_Rela *irela, | |
| 7452 | bfd *ibfd) | |
| 7453 | { | |
| 7454 | unsigned long r_indx; | |
| 7455 | struct elf_link_hash_entry *h; | |
| 7456 | Elf_Internal_Sym *sym; | |
| 7457 | struct tocsave_entry ent, *p; | |
| 7458 | hashval_t hash; | |
| 7459 | struct tocsave_entry **slot; | |
| 7460 | ||
| 7461 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7462 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7463 | return NULL; | |
| 7464 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7465 | { | |
| 7466 | (*_bfd_error_handler) | |
| 7467 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7468 | return NULL; | |
| 7469 | } | |
| 7470 | ||
| 7471 | if (h != NULL) | |
| 7472 | ent.offset = h->root.u.def.value; | |
| 7473 | else | |
| 7474 | ent.offset = sym->st_value; | |
| 7475 | ent.offset += irela->r_addend; | |
| 7476 | ||
| 7477 | hash = tocsave_htab_hash (&ent); | |
| 7478 | slot = ((struct tocsave_entry **) | |
| 7479 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7480 | if (slot == NULL) | |
| 7481 | return NULL; | |
| 7482 | ||
| 7483 | if (*slot == NULL) | |
| 7484 | { | |
| 7485 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7486 | if (p == NULL) | |
| 7487 | return NULL; | |
| 7488 | *p = ent; | |
| 7489 | *slot = p; | |
| 7490 | } | |
| 7491 | return *slot; | |
| 7492 | } | |
| 7493 | ||
| 754021d0 | 7494 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7495 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7496 | |
| 7497 | static bfd_boolean | |
| 7498 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7499 | { | |
| 7500 | struct ppc_link_hash_entry *eh; | |
| 7501 | asection *sym_sec; | |
| 74f0fb50 | 7502 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7503 | |
| 7504 | if (h->root.type == bfd_link_hash_indirect) | |
| 7505 | return TRUE; | |
| 7506 | ||
| 754021d0 AM |
7507 | if (h->root.type != bfd_link_hash_defined |
| 7508 | && h->root.type != bfd_link_hash_defweak) | |
| 7509 | return TRUE; | |
| 7510 | ||
| 7511 | eh = (struct ppc_link_hash_entry *) h; | |
| 7512 | if (eh->adjust_done) | |
| 7513 | return TRUE; | |
| 7514 | ||
| 7515 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7516 | opd = get_opd_info (sym_sec); |
| 7517 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7518 | { |
| 51aecdc5 | 7519 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7520 | if (adjust == -1) |
| 7521 | { | |
| 7522 | /* This entry has been deleted. */ | |
| b3fac117 | 7523 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7524 | if (dsec == NULL) |
| 7525 | { | |
| 7526 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7527 | if (discarded_section (dsec)) |
| 81688140 | 7528 | { |
| b3fac117 | 7529 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7530 | break; |
| 7531 | } | |
| 7532 | } | |
| 4025353c | 7533 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7534 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7535 | } |
| 7536 | else | |
| 7537 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7538 | eh->adjust_done = 1; |
| 7539 | } | |
| 7540 | return TRUE; | |
| 7541 | } | |
| 7542 | ||
| 8c1d1bb8 | 7543 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7544 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7545 | have already been determined. */ |
| 7546 | ||
| 7547 | static bfd_boolean | |
| 7548 | dec_dynrel_count (bfd_vma r_info, | |
| 7549 | asection *sec, | |
| 7550 | struct bfd_link_info *info, | |
| 7551 | Elf_Internal_Sym **local_syms, | |
| 7552 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7553 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7554 | { |
| 7555 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7556 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7557 | |
| 7558 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7559 | should be kept in sync with the code in check_relocs. */ | |
| 7560 | r_type = ELF64_R_TYPE (r_info); | |
| 7561 | switch (r_type) | |
| 7562 | { | |
| 7563 | default: | |
| 7564 | return TRUE; | |
| 7565 | ||
| 7566 | case R_PPC64_TPREL16: | |
| 7567 | case R_PPC64_TPREL16_LO: | |
| 7568 | case R_PPC64_TPREL16_HI: | |
| 7569 | case R_PPC64_TPREL16_HA: | |
| 7570 | case R_PPC64_TPREL16_DS: | |
| 7571 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7572 | case R_PPC64_TPREL16_HIGH: |
| 7573 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7574 | case R_PPC64_TPREL16_HIGHER: |
| 7575 | case R_PPC64_TPREL16_HIGHERA: | |
| 7576 | case R_PPC64_TPREL16_HIGHEST: | |
| 7577 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 7578 | if (!bfd_link_pic (info)) |
| 8c1d1bb8 AM |
7579 | return TRUE; |
| 7580 | ||
| 7581 | case R_PPC64_TPREL64: | |
| 7582 | case R_PPC64_DTPMOD64: | |
| 7583 | case R_PPC64_DTPREL64: | |
| 7584 | case R_PPC64_ADDR64: | |
| 7585 | case R_PPC64_REL30: | |
| 7586 | case R_PPC64_REL32: | |
| 7587 | case R_PPC64_REL64: | |
| 7588 | case R_PPC64_ADDR14: | |
| 7589 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7590 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7591 | case R_PPC64_ADDR16: | |
| 7592 | case R_PPC64_ADDR16_DS: | |
| 7593 | case R_PPC64_ADDR16_HA: | |
| 7594 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7595 | case R_PPC64_ADDR16_HIGH: |
| 7596 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7597 | case R_PPC64_ADDR16_HIGHER: |
| 7598 | case R_PPC64_ADDR16_HIGHERA: | |
| 7599 | case R_PPC64_ADDR16_HIGHEST: | |
| 7600 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7601 | case R_PPC64_ADDR16_LO: | |
| 7602 | case R_PPC64_ADDR16_LO_DS: | |
| 7603 | case R_PPC64_ADDR24: | |
| 7604 | case R_PPC64_ADDR32: | |
| 7605 | case R_PPC64_UADDR16: | |
| 7606 | case R_PPC64_UADDR32: | |
| 7607 | case R_PPC64_UADDR64: | |
| 7608 | case R_PPC64_TOC: | |
| 7609 | break; | |
| 7610 | } | |
| 7611 | ||
| 7612 | if (local_syms != NULL) | |
| 7613 | { | |
| 7614 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7615 | bfd *ibfd = sec->owner; |
| 7616 | ||
| 7617 | r_symndx = ELF64_R_SYM (r_info); | |
| 7618 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7619 | return FALSE; | |
| 7620 | } | |
| 7621 | ||
| 0e1862bb | 7622 | if ((bfd_link_pic (info) |
| 1d483afe | 7623 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7624 | || (h != NULL |
| 198f1157 | 7625 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7626 | || h->root.type == bfd_link_hash_defweak |
| 7627 | || !h->def_regular)))) | |
| 7628 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7629 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7630 | && h != NULL |
| 7631 | && (h->root.type == bfd_link_hash_defweak | |
| 7632 | || !h->def_regular))) | |
| 7633 | ; | |
| 7634 | else | |
| 7635 | return TRUE; | |
| 7636 | ||
| 7637 | if (h != NULL) | |
| 6edfbbad | 7638 | { |
| 19e08130 AM |
7639 | struct elf_dyn_relocs *p; |
| 7640 | struct elf_dyn_relocs **pp; | |
| 7641 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7642 | ||
| 7643 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7644 | with local syms for a given section. Also, symbol flags are | |
| 7645 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7646 | report a dynreloc miscount. */ | |
| 7647 | if (*pp == NULL && info->gc_sections) | |
| 7648 | return TRUE; | |
| 7649 | ||
| 7650 | while ((p = *pp) != NULL) | |
| 60124e18 | 7651 | { |
| 19e08130 AM |
7652 | if (p->sec == sec) |
| 7653 | { | |
| 7654 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7655 | p->pc_count -= 1; | |
| 7656 | p->count -= 1; | |
| 7657 | if (p->count == 0) | |
| 7658 | *pp = p->next; | |
| 7659 | return TRUE; | |
| 7660 | } | |
| 7661 | pp = &p->next; | |
| 60124e18 | 7662 | } |
| 6edfbbad | 7663 | } |
| 19e08130 AM |
7664 | else |
| 7665 | { | |
| 7666 | struct ppc_dyn_relocs *p; | |
| 7667 | struct ppc_dyn_relocs **pp; | |
| 7668 | void *vpp; | |
| 7669 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7670 | |
| 19e08130 AM |
7671 | if (local_syms == NULL) |
| 7672 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7673 | if (sym_sec == NULL) | |
| 7674 | sym_sec = sec; | |
| c57da1a7 | 7675 | |
| 19e08130 AM |
7676 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7677 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7678 | ||
| 7679 | if (*pp == NULL && info->gc_sections) | |
| 7680 | return TRUE; | |
| 7681 | ||
| 7682 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7683 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7684 | { |
| 19e08130 AM |
7685 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7686 | { | |
| 7687 | p->count -= 1; | |
| 7688 | if (p->count == 0) | |
| 7689 | *pp = p->next; | |
| 7690 | return TRUE; | |
| 7691 | } | |
| 7692 | pp = &p->next; | |
| 8c1d1bb8 | 7693 | } |
| 8c1d1bb8 AM |
7694 | } |
| 7695 | ||
| 8de848d8 | 7696 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7697 | sec->owner, sec); |
| 8c1d1bb8 AM |
7698 | bfd_set_error (bfd_error_bad_value); |
| 7699 | return FALSE; | |
| 7700 | } | |
| 7701 | ||
| 754021d0 AM |
7702 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7703 | only remove those associated with functions in discarded link-once | |
| 7704 | sections, or weakly defined functions that have been overridden. It | |
| 7705 | would be possible to remove many more entries for statically linked | |
| 7706 | applications. */ | |
| 7707 | ||
| b34976b6 | 7708 | bfd_boolean |
| e7d1c40c | 7709 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7710 | { |
| 7711 | bfd *ibfd; | |
| 754021d0 | 7712 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7713 | asection *need_pad = NULL; |
| e7d1c40c AM |
7714 | struct ppc_link_hash_table *htab; |
| 7715 | ||
| 7716 | htab = ppc_hash_table (info); | |
| 7717 | if (htab == NULL) | |
| 7718 | return FALSE; | |
| 1e2f5b6e | 7719 | |
| c72f2fb2 | 7720 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7721 | { |
| 7722 | asection *sec; | |
| 7723 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7724 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7725 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7726 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7727 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7728 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7729 | |
| 854b41e7 AM |
7730 | if (!is_ppc64_elf (ibfd)) |
| 7731 | continue; | |
| 7732 | ||
| 1e2f5b6e | 7733 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7734 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7735 | continue; |
| 7736 | ||
| dbaa2011 | 7737 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7738 | continue; |
| 7739 | ||
| 1e2f5b6e AM |
7740 | if (sec->output_section == bfd_abs_section_ptr) |
| 7741 | continue; | |
| 7742 | ||
| 7743 | /* Look through the section relocs. */ | |
| 7744 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7745 | continue; | |
| 7746 | ||
| 6cdc0ccc | 7747 | local_syms = NULL; |
| 0ffa91dd | 7748 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7749 | |
| 7750 | /* Read the relocations. */ | |
| 4ce794b7 | 7751 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7752 | info->keep_memory); |
| 1e2f5b6e | 7753 | if (relstart == NULL) |
| b34976b6 | 7754 | return FALSE; |
| 1e2f5b6e AM |
7755 | |
| 7756 | /* First run through the relocs to check they are sane, and to | |
| 7757 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7758 | need_edit = FALSE; |
| 51aecdc5 | 7759 | broken = FALSE; |
| 3f764659 | 7760 | need_pad = sec; |
| 1e2f5b6e | 7761 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7762 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7763 | { |
| 04c9666a | 7764 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7765 | unsigned long r_symndx; |
| 7766 | asection *sym_sec; | |
| 7767 | struct elf_link_hash_entry *h; | |
| 7768 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7769 | bfd_vma offset; |
| 1e2f5b6e | 7770 | |
| 51aecdc5 | 7771 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7772 | only interested in the reloc pointing to a function entry |
| 7773 | point. */ | |
| 51aecdc5 AM |
7774 | offset = rel->r_offset; |
| 7775 | if (rel + 1 == relend | |
| 7776 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7777 | { |
| 7778 | /* If someone messes with .opd alignment then after a | |
| 7779 | "ld -r" we might have padding in the middle of .opd. | |
| 7780 | Also, there's nothing to prevent someone putting | |
| 7781 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7782 | optimization for them! */ |
| 3f764659 | 7783 | broken_opd: |
| 1e2f5b6e | 7784 | (*_bfd_error_handler) |
| d003868e | 7785 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7786 | broken = TRUE; |
| 1e2f5b6e AM |
7787 | break; |
| 7788 | } | |
| 7789 | ||
| 50bc7936 AM |
7790 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7791 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7792 | { | |
| 7793 | (*_bfd_error_handler) | |
| d003868e AM |
7794 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7795 | ibfd, r_type); | |
| 51aecdc5 | 7796 | broken = TRUE; |
| 50bc7936 AM |
7797 | break; |
| 7798 | } | |
| 7799 | ||
| 1e2f5b6e | 7800 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7801 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7802 | r_symndx, ibfd)) | |
| 50bc7936 | 7803 | goto error_ret; |
| 1e2f5b6e AM |
7804 | |
| 7805 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7806 | { | |
| 411e1bfb AM |
7807 | const char *sym_name; |
| 7808 | if (h != NULL) | |
| 7809 | sym_name = h->root.root.string; | |
| 7810 | else | |
| 26c61ae5 L |
7811 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7812 | sym_sec); | |
| 411e1bfb | 7813 | |
| 1e2f5b6e | 7814 | (*_bfd_error_handler) |
| d003868e AM |
7815 | (_("%B: undefined sym `%s' in .opd section"), |
| 7816 | ibfd, sym_name); | |
| 51aecdc5 | 7817 | broken = TRUE; |
| 1e2f5b6e AM |
7818 | break; |
| 7819 | } | |
| 7820 | ||
| 51020317 AM |
7821 | /* opd entries are always for functions defined in the |
| 7822 | current input bfd. If the symbol isn't defined in the | |
| 7823 | input bfd, then we won't be using the function in this | |
| 7824 | bfd; It must be defined in a linkonce section in another | |
| 7825 | bfd, or is weak. It's also possible that we are | |
| 7826 | discarding the function due to a linker script /DISCARD/, | |
| 7827 | which we test for via the output_section. */ | |
| 7828 | if (sym_sec->owner != ibfd | |
| 7829 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7830 | need_edit = TRUE; |
| 1e2f5b6e | 7831 | |
| 50bc7936 | 7832 | rel += 2; |
| 51aecdc5 AM |
7833 | if (rel + 1 == relend |
| 7834 | || (rel + 2 < relend | |
| 7835 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7836 | ++rel; | |
| 7837 | ||
| 7838 | if (rel == relend) | |
| 3f764659 JJ |
7839 | { |
| 7840 | if (sec->size == offset + 24) | |
| 7841 | { | |
| 7842 | need_pad = NULL; | |
| 7843 | break; | |
| 7844 | } | |
| 51aecdc5 | 7845 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7846 | { |
| 7847 | cnt_16b++; | |
| 7848 | break; | |
| 7849 | } | |
| 7850 | goto broken_opd; | |
| 7851 | } | |
| 3f764659 JJ |
7852 | else if (rel + 1 < relend |
| 7853 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7854 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7855 | { | |
| 51aecdc5 AM |
7856 | if (rel[0].r_offset == offset + 16) |
| 7857 | cnt_16b++; | |
| 7858 | else if (rel[0].r_offset != offset + 24) | |
| 7859 | goto broken_opd; | |
| 3f764659 JJ |
7860 | } |
| 7861 | else | |
| 7862 | goto broken_opd; | |
| 1e2f5b6e AM |
7863 | } |
| 7864 | ||
| e7d1c40c | 7865 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7866 | |
| 51aecdc5 | 7867 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7868 | { |
| 7869 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7870 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7871 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7872 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7873 | bfd_size_type amt; |
| 7874 | ||
| 983bddc8 | 7875 | new_contents = NULL; |
| 51aecdc5 | 7876 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7877 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7878 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7879 | if (opd->adjust == NULL) |
| 7880 | return FALSE; | |
| 7881 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7882 | |
| 7883 | /* This seems a waste of time as input .opd sections are all | |
| 7884 | zeros as generated by gcc, but I suppose there's no reason | |
| 7885 | this will always be so. We might start putting something in | |
| 7886 | the third word of .opd entries. */ | |
| 7887 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7888 | { | |
| eea6121a AM |
7889 | bfd_byte *loc; |
| 7890 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7891 | { |
| eea6121a AM |
7892 | if (loc != NULL) |
| 7893 | free (loc); | |
| 50bc7936 | 7894 | error_ret: |
| 6cdc0ccc AM |
7895 | if (local_syms != NULL |
| 7896 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7897 | free (local_syms); | |
| 6cdc0ccc AM |
7898 | if (elf_section_data (sec)->relocs != relstart) |
| 7899 | free (relstart); | |
| b34976b6 | 7900 | return FALSE; |
| 6cdc0ccc | 7901 | } |
| 1e2f5b6e AM |
7902 | sec->contents = loc; |
| 7903 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7904 | } | |
| 7905 | ||
| 7906 | elf_section_data (sec)->relocs = relstart; | |
| 7907 | ||
| 3f764659 | 7908 | new_contents = sec->contents; |
| 3f764659 JJ |
7909 | if (add_aux_fields) |
| 7910 | { | |
| 7911 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7912 | if (new_contents == NULL) | |
| 7913 | return FALSE; | |
| 51aecdc5 | 7914 | need_pad = NULL; |
| 3f764659 | 7915 | } |
| b4f4e59f AM |
7916 | wptr = new_contents; |
| 7917 | rptr = sec->contents; | |
| 1e2f5b6e | 7918 | write_rel = relstart; |
| 51aecdc5 | 7919 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7920 | { |
| 50bc7936 AM |
7921 | unsigned long r_symndx; |
| 7922 | asection *sym_sec; | |
| 7923 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7924 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7925 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7926 | long opd_ent_size; |
| 7927 | Elf_Internal_Rela *next_rel; | |
| 7928 | bfd_boolean skip; | |
| 50bc7936 AM |
7929 | |
| 7930 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7931 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7932 | r_symndx, ibfd)) |
| 50bc7936 AM |
7933 | goto error_ret; |
| 7934 | ||
| 51aecdc5 AM |
7935 | next_rel = rel + 2; |
| 7936 | if (next_rel + 1 == relend | |
| 7937 | || (next_rel + 2 < relend | |
| 7938 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 7939 | ++next_rel; | |
| 7940 | ||
| 7941 | /* See if the .opd entry is full 24 byte or | |
| 7942 | 16 byte (with fd_aux entry overlapped with next | |
| 7943 | fd_func). */ | |
| 7944 | opd_ent_size = 24; | |
| 7945 | if (next_rel == relend) | |
| 1e2f5b6e | 7946 | { |
| 51aecdc5 | 7947 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 7948 | opd_ent_size = 16; |
| 51aecdc5 AM |
7949 | } |
| 7950 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 7951 | opd_ent_size = 16; | |
| 3f764659 | 7952 | |
| 51aecdc5 AM |
7953 | if (h != NULL |
| 7954 | && h->root.root.string[0] == '.') | |
| 7955 | { | |
| 7956 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab); | |
| 7957 | if (fdh != NULL | |
| 7958 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 7959 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 7960 | fdh = NULL; | |
| 7961 | } | |
| 1e2f5b6e | 7962 | |
| 51aecdc5 AM |
7963 | skip = (sym_sec->owner != ibfd |
| 7964 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 7965 | if (skip) | |
| 7966 | { | |
| 7967 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 7968 | { |
| 51aecdc5 AM |
7969 | /* Arrange for the function descriptor sym |
| 7970 | to be dropped. */ | |
| 7971 | fdh->elf.root.u.def.value = 0; | |
| 7972 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 7973 | } |
| 51aecdc5 | 7974 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 7975 | |
| 0e1862bb | 7976 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
7977 | rel = next_rel; |
| 7978 | else | |
| 7979 | while (1) | |
| 7980 | { | |
| 7981 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 7982 | NULL, h, sym)) | |
| 7983 | goto error_ret; | |
| 754021d0 | 7984 | |
| 51aecdc5 AM |
7985 | if (++rel == next_rel) |
| 7986 | break; | |
| 1e2f5b6e | 7987 | |
| 51aecdc5 AM |
7988 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 7989 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 7990 | r_symndx, ibfd)) | |
| 7991 | goto error_ret; | |
| 7992 | } | |
| 50bc7936 AM |
7993 | } |
| 7994 | else | |
| 1e2f5b6e | 7995 | { |
| 51aecdc5 AM |
7996 | /* We'll be keeping this opd entry. */ |
| 7997 | long adjust; | |
| 7998 | ||
| 7999 | if (fdh != NULL) | |
| 8000 | { | |
| 8001 | /* Redefine the function descriptor symbol to | |
| 8002 | this location in the opd section. It is | |
| 8003 | necessary to update the value here rather | |
| 8004 | than using an array of adjustments as we do | |
| 8005 | for local symbols, because various places | |
| 8006 | in the generic ELF code use the value | |
| 8007 | stored in u.def.value. */ | |
| 8008 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8009 | fdh->adjust_done = 1; | |
| 8010 | } | |
| 8011 | ||
| 8012 | /* Local syms are a bit tricky. We could | |
| 8013 | tweak them as they can be cached, but | |
| 8014 | we'd need to look through the local syms | |
| 8015 | for the function descriptor sym which we | |
| 8016 | don't have at the moment. So keep an | |
| 8017 | array of adjustments. */ | |
| 8018 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8019 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8020 | ||
| 8021 | if (wptr != rptr) | |
| 8022 | memcpy (wptr, rptr, opd_ent_size); | |
| 8023 | wptr += opd_ent_size; | |
| 8024 | if (add_aux_fields && opd_ent_size == 16) | |
| 8025 | { | |
| 8026 | memset (wptr, '\0', 8); | |
| 8027 | wptr += 8; | |
| 8028 | } | |
| 8029 | ||
| 50bc7936 | 8030 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8031 | new opd entries. */ |
| 8032 | for ( ; rel != next_rel; ++rel) | |
| 8033 | { | |
| 8034 | rel->r_offset += adjust; | |
| 8035 | if (write_rel != rel) | |
| 8036 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8037 | ++write_rel; | |
| 8038 | } | |
| 1e2f5b6e | 8039 | } |
| 51aecdc5 AM |
8040 | |
| 8041 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8042 | } |
| 8043 | ||
| 3f764659 | 8044 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8045 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8046 | if (add_aux_fields) |
| 8047 | { | |
| 8048 | free (sec->contents); | |
| 8049 | sec->contents = new_contents; | |
| 8050 | } | |
| 8051 | ||
| 05bf9422 | 8052 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8053 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8054 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8055 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8056 | some_edited = TRUE; |
| 1e2f5b6e | 8057 | } |
| 6cdc0ccc | 8058 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8059 | free (relstart); |
| 6cdc0ccc | 8060 | |
| 411e1bfb AM |
8061 | if (local_syms != NULL |
| 8062 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8063 | { | |
| 8064 | if (!info->keep_memory) | |
| 8065 | free (local_syms); | |
| 8066 | else | |
| 8067 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8068 | } | |
| 8069 | } | |
| 8070 | ||
| 754021d0 AM |
8071 | if (some_edited) |
| 8072 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8073 | ||
| 3f764659 JJ |
8074 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8075 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8076 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8077 | { |
| 8078 | bfd_byte *p; | |
| 8079 | ||
| 8080 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8081 | { | |
| 8082 | BFD_ASSERT (need_pad->size > 0); | |
| 8083 | ||
| 8084 | p = bfd_malloc (need_pad->size + 8); | |
| 8085 | if (p == NULL) | |
| 8086 | return FALSE; | |
| 699733f6 | 8087 | |
| 3f764659 JJ |
8088 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8089 | p, 0, need_pad->size)) | |
| 8090 | return FALSE; | |
| 8091 | ||
| 8092 | need_pad->contents = p; | |
| 8093 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8094 | } | |
| 8095 | else | |
| 8096 | { | |
| 8097 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8098 | if (p == NULL) | |
| 8099 | return FALSE; | |
| 8100 | ||
| 8101 | need_pad->contents = p; | |
| 8102 | } | |
| 8103 | ||
| 8104 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8105 | need_pad->size += 8; | |
| 8106 | } | |
| 8107 | ||
| 411e1bfb AM |
8108 | return TRUE; |
| 8109 | } | |
| 8110 | ||
| e1918d23 | 8111 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8112 | |
| e1918d23 | 8113 | asection * |
| e7d1c40c | 8114 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8115 | { |
| 411e1bfb AM |
8116 | struct ppc_link_hash_table *htab; |
| 8117 | ||
| 411e1bfb | 8118 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8119 | if (htab == NULL) |
| 8120 | return NULL; | |
| 8121 | ||
| ee67d69a AM |
8122 | if (abiversion (info->output_bfd) == 1) |
| 8123 | htab->opd_abi = 1; | |
| 8124 | ||
| e7d1c40c | 8125 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8126 | htab->do_multi_toc = 0; |
| 8127 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8128 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8129 | |
| 3a71aa26 AM |
8130 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8131 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8132 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8133 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8134 | if (htab->tls_get_addr != NULL) | |
| 8135 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8136 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8137 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8138 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8139 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8140 | { |
| 8141 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8142 | ||
| 8143 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8144 | FALSE, FALSE, TRUE); | |
| 8145 | if (opt != NULL) | |
| 8146 | func_desc_adjust (opt, info); | |
| 8147 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8148 | FALSE, FALSE, TRUE); | |
| 8149 | if (opt_fd != NULL | |
| 8150 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8151 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8152 | { | |
| 8153 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8154 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8155 | be calling __tls_get_addr via a plt call stub, then | |
| 8156 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8157 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8158 | if (htab->elf.dynamic_sections_created | |
| 8159 | && tga_fd != NULL | |
| 8160 | && (tga_fd->type == STT_FUNC | |
| 8161 | || tga_fd->needs_plt) | |
| 8162 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8163 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8164 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8165 | { | |
| 8166 | struct plt_entry *ent; | |
| 8167 | ||
| 8168 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8169 | if (ent->plt.refcount > 0) | |
| 8170 | break; | |
| 8171 | if (ent != NULL) | |
| 8172 | { | |
| 8173 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8174 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8175 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 8176 | if (opt_fd->dynindx != -1) | |
| 8177 | { | |
| 8178 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8179 | opt_fd->dynindx = -1; | |
| 8180 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8181 | opt_fd->dynstr_index); | |
| 8182 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8183 | return NULL; |
| a7f2871e AM |
8184 | } |
| 8185 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8186 | tga = &htab->tls_get_addr->elf; | |
| 8187 | if (opt != NULL && tga != NULL) | |
| 8188 | { | |
| 8189 | tga->root.type = bfd_link_hash_indirect; | |
| 8190 | tga->root.u.i.link = &opt->root; | |
| 8191 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 8192 | _bfd_elf_link_hash_hide_symbol (info, opt, | |
| 8193 | tga->forced_local); | |
| 8194 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8195 | } | |
| 8196 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8197 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8198 | if (htab->tls_get_addr != NULL) | |
| 8199 | { | |
| 8200 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8201 | htab->tls_get_addr->is_func = 1; | |
| 8202 | } | |
| 8203 | } | |
| 8204 | } | |
| 8205 | } | |
| 7c9cf415 AM |
8206 | else if (htab->params->tls_get_addr_opt < 0) |
| 8207 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8208 | } |
| 33c0ec9d | 8209 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8210 | } |
| 8387904d | 8211 | |
| 3a71aa26 AM |
8212 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8213 | HASH1 or HASH2. */ | |
| 8387904d | 8214 | |
| 3a71aa26 AM |
8215 | static bfd_boolean |
| 8216 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8217 | const Elf_Internal_Rela *rel, | |
| 8218 | const struct ppc_link_hash_entry *hash1, | |
| 8219 | const struct ppc_link_hash_entry *hash2) | |
| 8220 | { | |
| 8221 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8222 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8223 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8224 | ||
| e054468f | 8225 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8226 | { |
| 3a71aa26 AM |
8227 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8228 | struct elf_link_hash_entry *h; | |
| 8387904d | 8229 | |
| 3a71aa26 | 8230 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8231 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8232 | if (h == &hash1->elf || h == &hash2->elf) |
| 8233 | return TRUE; | |
| a48ebf4d | 8234 | } |
| 3a71aa26 | 8235 | return FALSE; |
| 951fd09b | 8236 | } |
| 411e1bfb | 8237 | |
| 951fd09b AM |
8238 | /* Run through all the TLS relocs looking for optimization |
| 8239 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8240 | a preliminary section layout so that we know the TLS segment | |
| 8241 | offsets. We can't optimize earlier because some optimizations need | |
| 8242 | to know the tp offset, and we need to optimize before allocating | |
| 8243 | dynamic relocations. */ | |
| 8244 | ||
| 8245 | bfd_boolean | |
| 33c0ec9d | 8246 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8247 | { |
| 8248 | bfd *ibfd; | |
| 8249 | asection *sec; | |
| 8250 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8251 | unsigned char *toc_ref; |
| 102890f0 | 8252 | int pass; |
| 951fd09b | 8253 | |
| 3cbc1e5e | 8254 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8255 | return TRUE; |
| 8256 | ||
| 951fd09b | 8257 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8258 | if (htab == NULL) |
| 8259 | return FALSE; | |
| 8260 | ||
| 663a1470 AM |
8261 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8262 | entries involved with tls relocs, and check that tls relocs | |
| 8263 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8264 | such a call. If they are not, we can't do any tls optimization. | |
| 8265 | On the second pass twiddle tls_mask flags to notify | |
| 8266 | relocate_section that optimization can be done, and adjust got | |
| 8267 | and plt refcounts. */ | |
| 8268 | toc_ref = NULL; | |
| 8269 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8270 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8271 | { |
| 8272 | Elf_Internal_Sym *locsyms = NULL; | |
| 8273 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8274 | ||
| 102890f0 AM |
8275 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8276 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8277 | { | |
| 8278 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8279 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8280 | |
| 102890f0 AM |
8281 | /* Read the relocations. */ |
| 8282 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8283 | info->keep_memory); | |
| 8284 | if (relstart == NULL) | |
| 2915c55b JK |
8285 | { |
| 8286 | free (toc_ref); | |
| 8287 | return FALSE; | |
| 8288 | } | |
| 411e1bfb | 8289 | |
| 102890f0 AM |
8290 | relend = relstart + sec->reloc_count; |
| 8291 | for (rel = relstart; rel < relend; rel++) | |
| 8292 | { | |
| 8293 | enum elf_ppc64_reloc_type r_type; | |
| 8294 | unsigned long r_symndx; | |
| 8295 | struct elf_link_hash_entry *h; | |
| 8296 | Elf_Internal_Sym *sym; | |
| 8297 | asection *sym_sec; | |
| f961d9dd AM |
8298 | unsigned char *tls_mask; |
| 8299 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8300 | bfd_vma value; |
| 8301 | bfd_boolean ok_tprel, is_local; | |
| 8302 | long toc_ref_index = 0; | |
| 8303 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8304 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8305 | |
| 102890f0 AM |
8306 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8307 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8308 | r_symndx, ibfd)) | |
| 8309 | { | |
| 8310 | err_free_rel: | |
| 8311 | if (elf_section_data (sec)->relocs != relstart) | |
| 8312 | free (relstart); | |
| 8313 | if (toc_ref != NULL) | |
| 8314 | free (toc_ref); | |
| 8315 | if (locsyms != NULL | |
| 0ffa91dd | 8316 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8317 | != (unsigned char *) locsyms)) |
| 8318 | free (locsyms); | |
| 663a1470 | 8319 | return ret; |
| 102890f0 | 8320 | } |
| 411e1bfb | 8321 | |
| 102890f0 AM |
8322 | if (h != NULL) |
| 8323 | { | |
| 766bc656 AM |
8324 | if (h->root.type == bfd_link_hash_defined |
| 8325 | || h->root.type == bfd_link_hash_defweak) | |
| 8326 | value = h->root.u.def.value; | |
| 8327 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8328 | value = 0; | |
| 8329 | else | |
| 663a1470 AM |
8330 | { |
| 8331 | found_tls_get_addr_arg = 0; | |
| 8332 | continue; | |
| 8333 | } | |
| 102890f0 AM |
8334 | } |
| 8335 | else | |
| 8336 | /* Symbols referenced by TLS relocs must be of type | |
| 8337 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8338 | value = sym->st_value; | |
| 8339 | ||
| 8340 | ok_tprel = FALSE; | |
| 8341 | is_local = FALSE; | |
| 8342 | if (h == NULL | |
| 8343 | || !h->def_dynamic) | |
| 8344 | { | |
| 8345 | is_local = TRUE; | |
| 766bc656 AM |
8346 | if (h != NULL |
| 8347 | && h->root.type == bfd_link_hash_undefweak) | |
| 8348 | ok_tprel = TRUE; | |
| 8349 | else | |
| 8350 | { | |
| 8351 | value += sym_sec->output_offset; | |
| 8352 | value += sym_sec->output_section->vma; | |
| 8353 | value -= htab->elf.tls_sec->vma; | |
| 8354 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8355 | < (bfd_vma) 1 << 32); | |
| 8356 | } | |
| 102890f0 | 8357 | } |
| 951fd09b | 8358 | |
| 102890f0 | 8359 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8360 | /* If this section has old-style __tls_get_addr calls |
| 8361 | without marker relocs, then check that each | |
| 8362 | __tls_get_addr call reloc is preceded by a reloc | |
| 8363 | that conceivably belongs to the __tls_get_addr arg | |
| 8364 | setup insn. If we don't find matching arg setup | |
| 8365 | relocs, don't do any tls optimization. */ | |
| 8366 | if (pass == 0 | |
| 8367 | && sec->has_tls_get_addr_call | |
| 8368 | && h != NULL | |
| 8369 | && (h == &htab->tls_get_addr->elf | |
| 8370 | || h == &htab->tls_get_addr_fd->elf) | |
| 8371 | && !found_tls_get_addr_arg | |
| 8372 | && is_branch_reloc (r_type)) | |
| 8373 | { | |
| 25f53a85 | 8374 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8375 | "TLS optimization disabled\n"), |
| 8376 | ibfd, sec, rel->r_offset); | |
| 8377 | ret = TRUE; | |
| 8378 | goto err_free_rel; | |
| 8379 | } | |
| 8380 | ||
| 8381 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8382 | switch (r_type) |
| 8383 | { | |
| 8384 | case R_PPC64_GOT_TLSLD16: | |
| 8385 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8386 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8387 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8388 | /* Fall thru */ |
| 8389 | ||
| 8390 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8391 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8392 | /* These relocs should never be against a symbol | |
| 8393 | defined in a shared lib. Leave them alone if | |
| 8394 | that turns out to be the case. */ | |
| 8395 | if (!is_local) | |
| 8396 | continue; | |
| 411e1bfb | 8397 | |
| 102890f0 | 8398 | /* LD -> LE */ |
| 411e1bfb | 8399 | tls_set = 0; |
| 102890f0 AM |
8400 | tls_clear = TLS_LD; |
| 8401 | tls_type = TLS_TLS | TLS_LD; | |
| 8402 | break; | |
| 411e1bfb | 8403 | |
| 102890f0 AM |
8404 | case R_PPC64_GOT_TLSGD16: |
| 8405 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8406 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8407 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8408 | /* Fall thru */ |
| 8409 | ||
| 8410 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8411 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8412 | if (ok_tprel) | |
| 8413 | /* GD -> LE */ | |
| 411e1bfb | 8414 | tls_set = 0; |
| 102890f0 AM |
8415 | else |
| 8416 | /* GD -> IE */ | |
| 8417 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8418 | tls_clear = TLS_GD; | |
| 8419 | tls_type = TLS_TLS | TLS_GD; | |
| 8420 | break; | |
| 8421 | ||
| 8422 | case R_PPC64_GOT_TPREL16_DS: | |
| 8423 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8424 | case R_PPC64_GOT_TPREL16_HI: | |
| 8425 | case R_PPC64_GOT_TPREL16_HA: | |
| 8426 | if (ok_tprel) | |
| 8427 | { | |
| 8428 | /* IE -> LE */ | |
| 8429 | tls_set = 0; | |
| 8430 | tls_clear = TLS_TPREL; | |
| 8431 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8432 | break; | |
| 8433 | } | |
| 411e1bfb AM |
8434 | continue; |
| 8435 | ||
| 727fc41e AM |
8436 | case R_PPC64_TLSGD: |
| 8437 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8438 | found_tls_get_addr_arg = 1; |
| 8439 | /* Fall thru */ | |
| 8440 | ||
| 8441 | case R_PPC64_TLS: | |
| 8442 | case R_PPC64_TOC16: | |
| 8443 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8444 | if (sym_sec == NULL || sym_sec != toc) |
| 8445 | continue; | |
| 8446 | ||
| 8447 | /* Mark this toc entry as referenced by a TLS | |
| 8448 | code sequence. We can do that now in the | |
| 8449 | case of R_PPC64_TLS, and after checking for | |
| 8450 | tls_get_addr for the TOC16 relocs. */ | |
| 8451 | if (toc_ref == NULL) | |
| 663a1470 AM |
8452 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8453 | if (toc_ref == NULL) | |
| 8454 | goto err_free_rel; | |
| 8455 | ||
| 102890f0 AM |
8456 | if (h != NULL) |
| 8457 | value = h->root.u.def.value; | |
| 8458 | else | |
| 8459 | value = sym->st_value; | |
| 8460 | value += rel->r_addend; | |
| 73242275 AM |
8461 | if (value % 8 != 0) |
| 8462 | continue; | |
| 8463 | BFD_ASSERT (value < toc->size | |
| 8464 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8465 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8466 | if (r_type == R_PPC64_TLS |
| 8467 | || r_type == R_PPC64_TLSGD | |
| 8468 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8469 | { |
| 8470 | toc_ref[toc_ref_index] = 1; | |
| 8471 | continue; | |
| 8472 | } | |
| 8473 | ||
| 8474 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8475 | continue; | |
| 8476 | ||
| 8477 | tls_set = 0; | |
| 8478 | tls_clear = 0; | |
| 8479 | expecting_tls_get_addr = 2; | |
| 8480 | break; | |
| 8481 | ||
| 8482 | case R_PPC64_TPREL64: | |
| 8483 | if (pass == 0 | |
| 8484 | || sec != toc | |
| 8485 | || toc_ref == NULL | |
| 663a1470 | 8486 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8487 | continue; |
| 8488 | if (ok_tprel) | |
| 8489 | { | |
| 8490 | /* IE -> LE */ | |
| 8491 | tls_set = TLS_EXPLICIT; | |
| 8492 | tls_clear = TLS_TPREL; | |
| 8493 | break; | |
| 8494 | } | |
| 8495 | continue; | |
| 8496 | ||
| 8497 | case R_PPC64_DTPMOD64: | |
| 8498 | if (pass == 0 | |
| 8499 | || sec != toc | |
| 8500 | || toc_ref == NULL | |
| 663a1470 | 8501 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8502 | continue; |
| 8503 | if (rel + 1 < relend | |
| 8504 | && (rel[1].r_info | |
| 8505 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8506 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8507 | { | |
| 8508 | if (ok_tprel) | |
| 8509 | /* GD -> LE */ | |
| 8510 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8511 | else | |
| 8512 | /* GD -> IE */ | |
| 8513 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8514 | tls_clear = TLS_GD; | |
| 8515 | } | |
| 8516 | else | |
| 8517 | { | |
| 8518 | if (!is_local) | |
| 8519 | continue; | |
| 8520 | ||
| 8521 | /* LD -> LE */ | |
| 8522 | tls_set = TLS_EXPLICIT; | |
| 8523 | tls_clear = TLS_LD; | |
| 8524 | } | |
| 8525 | break; | |
| 8526 | ||
| 8527 | default: | |
| 8528 | continue; | |
| 8529 | } | |
| 8530 | ||
| 8531 | if (pass == 0) | |
| 8532 | { | |
| 727fc41e AM |
8533 | if (!expecting_tls_get_addr |
| 8534 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8535 | continue; |
| 8536 | ||
| 3a71aa26 AM |
8537 | if (rel + 1 < relend |
| 8538 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8539 | htab->tls_get_addr, | |
| 8540 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8541 | { |
| 3a71aa26 | 8542 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8543 | { |
| 3a71aa26 | 8544 | /* Check for toc tls entries. */ |
| f961d9dd | 8545 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8546 | int retval; |
| 8547 | ||
| 8548 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8549 | &locsyms, | |
| 8550 | rel, ibfd); | |
| 8551 | if (retval == 0) | |
| 8552 | goto err_free_rel; | |
| 663a1470 AM |
8553 | if (toc_tls != NULL) |
| 8554 | { | |
| 8555 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8556 | found_tls_get_addr_arg = 1; | |
| 8557 | if (retval > 1) | |
| 8558 | toc_ref[toc_ref_index] = 1; | |
| 8559 | } | |
| 102890f0 | 8560 | } |
| 3a71aa26 | 8561 | continue; |
| 102890f0 AM |
8562 | } |
| 8563 | ||
| 8564 | if (expecting_tls_get_addr != 1) | |
| 8565 | continue; | |
| 8566 | ||
| 8567 | /* Uh oh, we didn't find the expected call. We | |
| 8568 | could just mark this symbol to exclude it | |
| 8569 | from tls optimization but it's safer to skip | |
| 663a1470 | 8570 | the entire optimization. */ |
| 25f53a85 | 8571 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8572 | "TLS optimization disabled\n"), |
| 8573 | ibfd, sec, rel->r_offset); | |
| 8574 | ret = TRUE; | |
| 8575 | goto err_free_rel; | |
| 102890f0 AM |
8576 | } |
| 8577 | ||
| 85f7a9cb | 8578 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8579 | { |
| 8580 | struct plt_entry *ent; | |
| 8581 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8582 | ent != NULL; | |
| 8583 | ent = ent->next) | |
| 8584 | if (ent->addend == 0) | |
| 411e1bfb | 8585 | { |
| 102890f0 | 8586 | if (ent->plt.refcount > 0) |
| 30038c59 | 8587 | { |
| 102890f0 AM |
8588 | ent->plt.refcount -= 1; |
| 8589 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8590 | } |
| 102890f0 | 8591 | break; |
| 411e1bfb | 8592 | } |
| 102890f0 | 8593 | } |
| 411e1bfb | 8594 | |
| 85f7a9cb | 8595 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8596 | { |
| 8597 | struct plt_entry *ent; | |
| 8598 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8599 | ent != NULL; | |
| 8600 | ent = ent->next) | |
| 8601 | if (ent->addend == 0) | |
| 411e1bfb | 8602 | { |
| 102890f0 AM |
8603 | if (ent->plt.refcount > 0) |
| 8604 | ent->plt.refcount -= 1; | |
| 8605 | break; | |
| 411e1bfb | 8606 | } |
| 102890f0 | 8607 | } |
| 411e1bfb | 8608 | |
| 102890f0 | 8609 | if (tls_clear == 0) |
| 30038c59 AM |
8610 | continue; |
| 8611 | ||
| 102890f0 AM |
8612 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8613 | { | |
| 8614 | struct got_entry *ent; | |
| 411e1bfb | 8615 | |
| 102890f0 AM |
8616 | /* Adjust got entry for this reloc. */ |
| 8617 | if (h != NULL) | |
| 8618 | ent = h->got.glist; | |
| 8619 | else | |
| 8620 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8621 | |
| 102890f0 AM |
8622 | for (; ent != NULL; ent = ent->next) |
| 8623 | if (ent->addend == rel->r_addend | |
| 8624 | && ent->owner == ibfd | |
| 8625 | && ent->tls_type == tls_type) | |
| 8626 | break; | |
| 8627 | if (ent == NULL) | |
| 8628 | abort (); | |
| 411e1bfb | 8629 | |
| 102890f0 AM |
8630 | if (tls_set == 0) |
| 8631 | { | |
| 8632 | /* We managed to get rid of a got entry. */ | |
| 8633 | if (ent->got.refcount > 0) | |
| 8634 | ent->got.refcount -= 1; | |
| 8635 | } | |
| 8636 | } | |
| 8637 | else | |
| 8638 | { | |
| 8639 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8640 | we'll lose one or two dyn relocs. */ | |
| 8641 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8642 | NULL, h, sym)) |
| 102890f0 | 8643 | return FALSE; |
| 411e1bfb | 8644 | |
| 102890f0 AM |
8645 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8646 | { | |
| 8647 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8648 | NULL, h, sym)) |
| 102890f0 AM |
8649 | return FALSE; |
| 8650 | } | |
| 8651 | } | |
| 411e1bfb | 8652 | |
| 102890f0 AM |
8653 | *tls_mask |= tls_set; |
| 8654 | *tls_mask &= ~tls_clear; | |
| 8655 | } | |
| 8c1d1bb8 | 8656 | |
| 102890f0 AM |
8657 | if (elf_section_data (sec)->relocs != relstart) |
| 8658 | free (relstart); | |
| 8659 | } | |
| 411e1bfb | 8660 | |
| 663a1470 AM |
8661 | if (locsyms != NULL |
| 8662 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8663 | { | |
| 8664 | if (!info->keep_memory) | |
| 8665 | free (locsyms); | |
| 8666 | else | |
| 8667 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8668 | } | |
| 8669 | } | |
| 411e1bfb | 8670 | |
| 663a1470 AM |
8671 | if (toc_ref != NULL) |
| 8672 | free (toc_ref); | |
| b34976b6 | 8673 | return TRUE; |
| 1e2f5b6e | 8674 | } |
| b34976b6 | 8675 | |
| c5614fa4 AM |
8676 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8677 | the values of any global symbols in a toc section that has been | |
| 8678 | edited. Globals in toc sections should be a rarity, so this function | |
| 8679 | sets a flag if any are found in toc sections other than the one just | |
| 8680 | edited, so that futher hash table traversals can be avoided. */ | |
| 8681 | ||
| 8682 | struct adjust_toc_info | |
| 8683 | { | |
| 8684 | asection *toc; | |
| 8685 | unsigned long *skip; | |
| 8686 | bfd_boolean global_toc_syms; | |
| 8687 | }; | |
| 8688 | ||
| ba761f19 AM |
8689 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8690 | ||
| c5614fa4 AM |
8691 | static bfd_boolean |
| 8692 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8693 | { | |
| 8694 | struct ppc_link_hash_entry *eh; | |
| 8695 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8696 | unsigned long i; |
| c5614fa4 | 8697 | |
| c5614fa4 AM |
8698 | if (h->root.type != bfd_link_hash_defined |
| 8699 | && h->root.type != bfd_link_hash_defweak) | |
| 8700 | return TRUE; | |
| 8701 | ||
| 8702 | eh = (struct ppc_link_hash_entry *) h; | |
| 8703 | if (eh->adjust_done) | |
| 8704 | return TRUE; | |
| 8705 | ||
| 8706 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8707 | { | |
| 854b41e7 AM |
8708 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8709 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8710 | else |
| 854b41e7 AM |
8711 | i = eh->elf.root.u.def.value >> 3; |
| 8712 | ||
| ba761f19 | 8713 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8714 | { |
| 8715 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8716 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8717 | do | |
| 8718 | ++i; | |
| ba761f19 | 8719 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8720 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8721 | } |
| 854b41e7 AM |
8722 | |
| 8723 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8724 | eh->adjust_done = 1; |
| 8725 | } | |
| 8726 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8727 | toc_inf->global_toc_syms = TRUE; | |
| 8728 | ||
| 8729 | return TRUE; | |
| 8730 | } | |
| 8731 | ||
| 560c8763 AM |
8732 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8733 | ||
| 8734 | static bfd_boolean | |
| 8735 | ok_lo_toc_insn (unsigned int insn) | |
| 8736 | { | |
| 8737 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8738 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8739 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8740 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8741 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8742 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8743 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8744 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8745 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8746 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8747 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8748 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8749 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8750 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8751 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8752 | && (insn & 3) != 1) | |
| 8753 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8754 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8755 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8756 | } | |
| 8757 | ||
| c5614fa4 AM |
8758 | /* Examine all relocs referencing .toc sections in order to remove |
| 8759 | unused .toc entries. */ | |
| 8760 | ||
| 8761 | bfd_boolean | |
| 33c0ec9d | 8762 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8763 | { |
| 8764 | bfd *ibfd; | |
| 8765 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8766 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8767 | |
| 67f0cbdb | 8768 | htab->do_toc_opt = 1; |
| c5614fa4 | 8769 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8770 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8771 | { |
| 8772 | asection *toc, *sec; | |
| 8773 | Elf_Internal_Shdr *symtab_hdr; | |
| 8774 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8775 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8776 | unsigned long *skip, *drop; |
| 8777 | unsigned char *used; | |
| 8778 | unsigned char *keep, last, some_unused; | |
| 8779 | ||
| 854b41e7 AM |
8780 | if (!is_ppc64_elf (ibfd)) |
| 8781 | continue; | |
| 8782 | ||
| c5614fa4 AM |
8783 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8784 | if (toc == NULL | |
| 92b7a70f | 8785 | || toc->size == 0 |
| dbaa2011 AM |
8786 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8787 | || discarded_section (toc)) | |
| c5614fa4 AM |
8788 | continue; |
| 8789 | ||
| 425b145b | 8790 | toc_relocs = NULL; |
| c5614fa4 | 8791 | local_syms = NULL; |
| 0ffa91dd | 8792 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8793 | |
| 8794 | /* Look at sections dropped from the final link. */ | |
| 8795 | skip = NULL; | |
| 8796 | relstart = NULL; | |
| 8797 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8798 | { | |
| 8799 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8800 | || !discarded_section (sec) |
| c5614fa4 AM |
8801 | || get_opd_info (sec) |
| 8802 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8803 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8804 | continue; | |
| 8805 | ||
| 8806 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8807 | if (relstart == NULL) | |
| 8808 | goto error_ret; | |
| 8809 | ||
| 8810 | /* Run through the relocs to see which toc entries might be | |
| 8811 | unused. */ | |
| 8812 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8813 | { | |
| 8814 | enum elf_ppc64_reloc_type r_type; | |
| 8815 | unsigned long r_symndx; | |
| 8816 | asection *sym_sec; | |
| 8817 | struct elf_link_hash_entry *h; | |
| 8818 | Elf_Internal_Sym *sym; | |
| 8819 | bfd_vma val; | |
| 8820 | ||
| 8821 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8822 | switch (r_type) | |
| 8823 | { | |
| 8824 | default: | |
| 8825 | continue; | |
| 8826 | ||
| 8827 | case R_PPC64_TOC16: | |
| 8828 | case R_PPC64_TOC16_LO: | |
| 8829 | case R_PPC64_TOC16_HI: | |
| 8830 | case R_PPC64_TOC16_HA: | |
| 8831 | case R_PPC64_TOC16_DS: | |
| 8832 | case R_PPC64_TOC16_LO_DS: | |
| 8833 | break; | |
| 8834 | } | |
| 8835 | ||
| 8836 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8837 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8838 | r_symndx, ibfd)) | |
| 8839 | goto error_ret; | |
| 8840 | ||
| 8841 | if (sym_sec != toc) | |
| 8842 | continue; | |
| 8843 | ||
| 8844 | if (h != NULL) | |
| 8845 | val = h->root.u.def.value; | |
| 8846 | else | |
| 8847 | val = sym->st_value; | |
| 8848 | val += rel->r_addend; | |
| 8849 | ||
| 8850 | if (val >= toc->size) | |
| 8851 | continue; | |
| 8852 | ||
| 8853 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8854 | If not, don't mark as unused. */ | |
| 8855 | if (val & 7) | |
| 8856 | continue; | |
| 8857 | ||
| 8858 | if (skip == NULL) | |
| 8859 | { | |
| 854b41e7 | 8860 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8861 | if (skip == NULL) |
| 8862 | goto error_ret; | |
| 8863 | } | |
| 8864 | ||
| ba761f19 | 8865 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8866 | } |
| 8867 | ||
| 8868 | if (elf_section_data (sec)->relocs != relstart) | |
| 8869 | free (relstart); | |
| 8870 | } | |
| 8871 | ||
| ba761f19 AM |
8872 | /* For largetoc loads of address constants, we can convert |
| 8873 | . addis rx,2,addr@got@ha | |
| 8874 | . ld ry,addr@got@l(rx) | |
| 8875 | to | |
| 8876 | . addis rx,2,addr@toc@ha | |
| 8877 | . addi ry,rx,addr@toc@l | |
| 8878 | when addr is within 2G of the toc pointer. This then means | |
| 8879 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8880 | |
| ba761f19 AM |
8881 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8882 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8883 | && toc->reloc_count != 0) | |
| 8884 | { | |
| 8885 | /* Read toc relocs. */ | |
| 425b145b AM |
8886 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8887 | info->keep_memory); | |
| 8888 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8889 | goto error_ret; |
| 8890 | ||
| 425b145b | 8891 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8892 | { |
| 8893 | enum elf_ppc64_reloc_type r_type; | |
| 8894 | unsigned long r_symndx; | |
| 8895 | asection *sym_sec; | |
| 8896 | struct elf_link_hash_entry *h; | |
| 8897 | Elf_Internal_Sym *sym; | |
| 8898 | bfd_vma val, addr; | |
| 8899 | ||
| 8900 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8901 | if (r_type != R_PPC64_ADDR64) | |
| 8902 | continue; | |
| 8903 | ||
| 8904 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8905 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8906 | r_symndx, ibfd)) | |
| 8907 | goto error_ret; | |
| 8908 | ||
| 425b145b | 8909 | if (sym_sec == NULL |
| dbaa2011 | 8910 | || discarded_section (sym_sec)) |
| 425b145b AM |
8911 | continue; |
| 8912 | ||
| afe397ea | 8913 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
8914 | continue; |
| 8915 | ||
| 8916 | if (h != NULL) | |
| bddc25c9 AM |
8917 | { |
| 8918 | if (h->type == STT_GNU_IFUNC) | |
| 8919 | continue; | |
| 8920 | val = h->root.u.def.value; | |
| 8921 | } | |
| ba761f19 | 8922 | else |
| bddc25c9 AM |
8923 | { |
| 8924 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8925 | continue; | |
| 8926 | val = sym->st_value; | |
| 8927 | } | |
| ba761f19 AM |
8928 | val += rel->r_addend; |
| 8929 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8930 | ||
| 8931 | /* We don't yet know the exact toc pointer value, but we | |
| 8932 | know it will be somewhere in the toc section. Don't | |
| 8933 | optimize if the difference from any possible toc | |
| 8934 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8935 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8936 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8937 | continue; | |
| 8938 | ||
| 8939 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 8940 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8941 | continue; | |
| 8942 | ||
| 8943 | if (skip == NULL) | |
| 8944 | { | |
| 8945 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 8946 | if (skip == NULL) | |
| 8947 | goto error_ret; | |
| 8948 | } | |
| 8949 | ||
| 8950 | skip[rel->r_offset >> 3] | |
| 425b145b | 8951 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 8952 | } |
| ba761f19 AM |
8953 | } |
| 8954 | ||
| c5614fa4 AM |
8955 | if (skip == NULL) |
| 8956 | continue; | |
| 8957 | ||
| 8958 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 8959 | if (used == NULL) | |
| 8960 | { | |
| 8961 | error_ret: | |
| 8962 | if (local_syms != NULL | |
| 8963 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8964 | free (local_syms); | |
| 8965 | if (sec != NULL | |
| 8966 | && relstart != NULL | |
| 8967 | && elf_section_data (sec)->relocs != relstart) | |
| 8968 | free (relstart); | |
| 425b145b AM |
8969 | if (toc_relocs != NULL |
| 8970 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 8971 | free (toc_relocs); | |
| c5614fa4 AM |
8972 | if (skip != NULL) |
| 8973 | free (skip); | |
| 8974 | return FALSE; | |
| 8975 | } | |
| 8976 | ||
| 30038c59 AM |
8977 | /* Now check all kept sections that might reference the toc. |
| 8978 | Check the toc itself last. */ | |
| 8979 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 8980 | : ibfd->sections); | |
| c5614fa4 | 8981 | sec != NULL; |
| c5614fa4 | 8982 | sec = (sec == toc ? NULL |
| c5614fa4 | 8983 | : sec->next == NULL ? toc |
| 30038c59 | 8984 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
8985 | : sec->next)) |
| 8986 | { | |
| 8987 | int repeat; | |
| 8988 | ||
| 8989 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8990 | || discarded_section (sec) |
| c5614fa4 AM |
8991 | || get_opd_info (sec) |
| 8992 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8993 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8994 | continue; | |
| 8995 | ||
| 854b41e7 AM |
8996 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 8997 | info->keep_memory); | |
| c5614fa4 | 8998 | if (relstart == NULL) |
| 2915c55b JK |
8999 | { |
| 9000 | free (used); | |
| 9001 | goto error_ret; | |
| 9002 | } | |
| c5614fa4 AM |
9003 | |
| 9004 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9005 | do |
| d4f1ee75 AM |
9006 | { |
| 9007 | repeat = 0; | |
| 9008 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9009 | { | |
| 9010 | enum elf_ppc64_reloc_type r_type; | |
| 9011 | unsigned long r_symndx; | |
| 9012 | asection *sym_sec; | |
| 9013 | struct elf_link_hash_entry *h; | |
| 9014 | Elf_Internal_Sym *sym; | |
| 9015 | bfd_vma val; | |
| 9016 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9017 | |
| d4f1ee75 AM |
9018 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9019 | switch (r_type) | |
| 9020 | { | |
| 9021 | default: | |
| 9022 | insn_check = no_check; | |
| 9023 | break; | |
| 98528052 | 9024 | |
| d4f1ee75 AM |
9025 | case R_PPC64_GOT_TLSLD16_HA: |
| 9026 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9027 | case R_PPC64_GOT_TPREL16_HA: | |
| 9028 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9029 | case R_PPC64_GOT16_HA: | |
| 9030 | case R_PPC64_TOC16_HA: | |
| 9031 | insn_check = check_ha; | |
| 9032 | break; | |
| 98528052 | 9033 | |
| d4f1ee75 AM |
9034 | case R_PPC64_GOT_TLSLD16_LO: |
| 9035 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9036 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9037 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9038 | case R_PPC64_GOT16_LO: | |
| 9039 | case R_PPC64_GOT16_LO_DS: | |
| 9040 | case R_PPC64_TOC16_LO: | |
| 9041 | case R_PPC64_TOC16_LO_DS: | |
| 9042 | insn_check = check_lo; | |
| 9043 | break; | |
| 9044 | } | |
| 560c8763 | 9045 | |
| d4f1ee75 AM |
9046 | if (insn_check != no_check) |
| 9047 | { | |
| 9048 | bfd_vma off = rel->r_offset & ~3; | |
| 9049 | unsigned char buf[4]; | |
| 9050 | unsigned int insn; | |
| c5614fa4 | 9051 | |
| d4f1ee75 AM |
9052 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9053 | { | |
| 9054 | free (used); | |
| 9055 | goto error_ret; | |
| 9056 | } | |
| 9057 | insn = bfd_get_32 (ibfd, buf); | |
| 9058 | if (insn_check == check_lo | |
| 9059 | ? !ok_lo_toc_insn (insn) | |
| 9060 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 9061 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9062 | { | |
| 9063 | char str[12]; | |
| 9064 | ||
| 9065 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9066 | sprintf (str, "%#08x", insn); | |
| 9067 | info->callbacks->einfo | |
| 9068 | (_("%P: %H: toc optimization is not supported for" | |
| 9069 | " %s instruction.\n"), | |
| 9070 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9071 | } | |
| 9072 | } | |
| c5614fa4 | 9073 | |
| d4f1ee75 AM |
9074 | switch (r_type) |
| 9075 | { | |
| 9076 | case R_PPC64_TOC16: | |
| 9077 | case R_PPC64_TOC16_LO: | |
| 9078 | case R_PPC64_TOC16_HI: | |
| 9079 | case R_PPC64_TOC16_HA: | |
| 9080 | case R_PPC64_TOC16_DS: | |
| 9081 | case R_PPC64_TOC16_LO_DS: | |
| 9082 | /* In case we're taking addresses of toc entries. */ | |
| 9083 | case R_PPC64_ADDR64: | |
| 9084 | break; | |
| c5614fa4 | 9085 | |
| d4f1ee75 AM |
9086 | default: |
| 9087 | continue; | |
| 9088 | } | |
| c5614fa4 | 9089 | |
| d4f1ee75 AM |
9090 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9091 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9092 | r_symndx, ibfd)) | |
| 9093 | { | |
| 9094 | free (used); | |
| 9095 | goto error_ret; | |
| 9096 | } | |
| c5614fa4 | 9097 | |
| d4f1ee75 AM |
9098 | if (sym_sec != toc) |
| 9099 | continue; | |
| c5614fa4 | 9100 | |
| d4f1ee75 AM |
9101 | if (h != NULL) |
| 9102 | val = h->root.u.def.value; | |
| 9103 | else | |
| 9104 | val = sym->st_value; | |
| 9105 | val += rel->r_addend; | |
| ba761f19 | 9106 | |
| d4f1ee75 AM |
9107 | if (val >= toc->size) |
| 9108 | continue; | |
| ba761f19 | 9109 | |
| d4f1ee75 AM |
9110 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9111 | { | |
| 9112 | bfd_vma off; | |
| 9113 | unsigned char opc; | |
| 9114 | ||
| 9115 | switch (r_type) | |
| 9116 | { | |
| 9117 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9118 | break; |
| ba761f19 | 9119 | |
| d4f1ee75 AM |
9120 | case R_PPC64_TOC16_LO_DS: |
| 9121 | off = rel->r_offset; | |
| 9122 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9123 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9124 | off, 1)) | |
| 9125 | { | |
| 9126 | free (used); | |
| 9127 | goto error_ret; | |
| 9128 | } | |
| 9129 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9130 | break; | |
| 9131 | /* Fall thru */ | |
| ba761f19 | 9132 | |
| d4f1ee75 AM |
9133 | default: |
| 9134 | /* Wrong sort of reloc, or not a ld. We may | |
| 9135 | as well clear ref_from_discarded too. */ | |
| 9136 | skip[val >> 3] = 0; | |
| 9137 | } | |
| 9138 | } | |
| 9139 | ||
| 9140 | if (sec != toc) | |
| 9141 | used[val >> 3] = 1; | |
| 9142 | /* For the toc section, we only mark as used if this | |
| 9143 | entry itself isn't unused. */ | |
| 9144 | else if ((used[rel->r_offset >> 3] | |
| 9145 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9146 | && !used[val >> 3]) | |
| 9147 | { | |
| 9148 | /* Do all the relocs again, to catch reference | |
| 9149 | chains. */ | |
| 9150 | repeat = 1; | |
| 9151 | used[val >> 3] = 1; | |
| 9152 | } | |
| 9153 | } | |
| 9154 | } | |
| c5614fa4 | 9155 | while (repeat); |
| 854b41e7 AM |
9156 | |
| 9157 | if (elf_section_data (sec)->relocs != relstart) | |
| 9158 | free (relstart); | |
| c5614fa4 AM |
9159 | } |
| 9160 | ||
| 9161 | /* Merge the used and skip arrays. Assume that TOC | |
| 9162 | doublewords not appearing as either used or unused belong | |
| 9163 | to to an entry more than one doubleword in size. */ | |
| 9164 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9165 | drop < skip + (toc->size + 7) / 8; | |
| 9166 | ++drop, ++keep) | |
| 9167 | { | |
| 9168 | if (*keep) | |
| 9169 | { | |
| ba761f19 AM |
9170 | *drop &= ~ref_from_discarded; |
| 9171 | if ((*drop & can_optimize) != 0) | |
| 9172 | some_unused = 1; | |
| c5614fa4 AM |
9173 | last = 0; |
| 9174 | } | |
| b140b010 | 9175 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9176 | { |
| 9177 | some_unused = 1; | |
| ba761f19 | 9178 | last = ref_from_discarded; |
| c5614fa4 AM |
9179 | } |
| 9180 | else | |
| 9181 | *drop = last; | |
| 9182 | } | |
| 9183 | ||
| 9184 | free (used); | |
| 9185 | ||
| 9186 | if (some_unused) | |
| 9187 | { | |
| 9188 | bfd_byte *contents, *src; | |
| 9189 | unsigned long off; | |
| d62b3684 | 9190 | Elf_Internal_Sym *sym; |
| ba761f19 | 9191 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9192 | |
| 9193 | /* Shuffle the toc contents, and at the same time convert the | |
| 9194 | skip array from booleans into offsets. */ | |
| 9195 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9196 | goto error_ret; | |
| 9197 | ||
| 9198 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9199 | ||
| 9200 | for (src = contents, off = 0, drop = skip; | |
| 9201 | src < contents + toc->size; | |
| 9202 | src += 8, ++drop) | |
| 9203 | { | |
| ba761f19 AM |
9204 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9205 | off += 8; | |
| c5614fa4 AM |
9206 | else if (off != 0) |
| 9207 | { | |
| 9208 | *drop = off; | |
| 9209 | memcpy (src - off, src, 8); | |
| 9210 | } | |
| 9211 | } | |
| 854b41e7 | 9212 | *drop = off; |
| c5614fa4 AM |
9213 | toc->rawsize = toc->size; |
| 9214 | toc->size = src - contents - off; | |
| 9215 | ||
| ba761f19 AM |
9216 | /* Adjust addends for relocs against the toc section sym, |
| 9217 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9218 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9219 | { | |
| 9220 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9221 | || discarded_section (sec)) |
| c5614fa4 AM |
9222 | continue; |
| 9223 | ||
| 9224 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9225 | info->keep_memory); |
| c5614fa4 AM |
9226 | if (relstart == NULL) |
| 9227 | goto error_ret; | |
| 9228 | ||
| 9229 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9230 | { | |
| 9231 | enum elf_ppc64_reloc_type r_type; | |
| 9232 | unsigned long r_symndx; | |
| 9233 | asection *sym_sec; | |
| 9234 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9235 | bfd_vma val; |
| c5614fa4 AM |
9236 | |
| 9237 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9238 | switch (r_type) | |
| 9239 | { | |
| 9240 | default: | |
| 9241 | continue; | |
| 9242 | ||
| 9243 | case R_PPC64_TOC16: | |
| 9244 | case R_PPC64_TOC16_LO: | |
| 9245 | case R_PPC64_TOC16_HI: | |
| 9246 | case R_PPC64_TOC16_HA: | |
| 9247 | case R_PPC64_TOC16_DS: | |
| 9248 | case R_PPC64_TOC16_LO_DS: | |
| 9249 | case R_PPC64_ADDR64: | |
| 9250 | break; | |
| 9251 | } | |
| 9252 | ||
| 9253 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9254 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9255 | r_symndx, ibfd)) | |
| 9256 | goto error_ret; | |
| 9257 | ||
| ba761f19 | 9258 | if (sym_sec != toc) |
| c5614fa4 AM |
9259 | continue; |
| 9260 | ||
| ba761f19 AM |
9261 | if (h != NULL) |
| 9262 | val = h->root.u.def.value; | |
| 9263 | else | |
| 9264 | { | |
| 9265 | val = sym->st_value; | |
| 9266 | if (val != 0) | |
| 9267 | local_toc_syms = TRUE; | |
| 9268 | } | |
| 9269 | ||
| 9270 | val += rel->r_addend; | |
| 854b41e7 AM |
9271 | |
| 9272 | if (val > toc->rawsize) | |
| 9273 | val = toc->rawsize; | |
| ba761f19 AM |
9274 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9275 | continue; | |
| 9276 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9277 | { | |
| 9278 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9279 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9280 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9281 | ||
| 9282 | switch (r_type) | |
| 9283 | { | |
| 9284 | case R_PPC64_TOC16_HA: | |
| 9285 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9286 | break; | |
| 9287 | ||
| 9288 | case R_PPC64_TOC16_LO_DS: | |
| 9289 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9290 | break; | |
| 9291 | ||
| 9292 | default: | |
| 28942f62 AM |
9293 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9294 | ppc_howto_init (); | |
| b140b010 | 9295 | info->callbacks->einfo |
| bc30df16 | 9296 | (_("%P: %H: %s references " |
| b140b010 AM |
9297 | "optimized away TOC entry\n"), |
| 9298 | ibfd, sec, rel->r_offset, | |
| 9299 | ppc64_elf_howto_table[r_type]->name); | |
| 9300 | bfd_set_error (bfd_error_bad_value); | |
| 9301 | goto error_ret; | |
| ba761f19 AM |
9302 | } |
| 9303 | rel->r_addend = tocrel->r_addend; | |
| 9304 | elf_section_data (sec)->relocs = relstart; | |
| 9305 | continue; | |
| 9306 | } | |
| 9307 | ||
| 9308 | if (h != NULL || sym->st_value != 0) | |
| 9309 | continue; | |
| 854b41e7 AM |
9310 | |
| 9311 | rel->r_addend -= skip[val >> 3]; | |
| 9312 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9313 | } |
| 854b41e7 AM |
9314 | |
| 9315 | if (elf_section_data (sec)->relocs != relstart) | |
| 9316 | free (relstart); | |
| c5614fa4 AM |
9317 | } |
| 9318 | ||
| 9319 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9320 | but handle them anyway. */ | |
| df22d223 AM |
9321 | if (local_syms != NULL) |
| 9322 | for (sym = local_syms; | |
| 9323 | sym < local_syms + symtab_hdr->sh_info; | |
| 9324 | ++sym) | |
| 9325 | if (sym->st_value != 0 | |
| 9326 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9327 | { | |
| 9328 | unsigned long i; | |
| 854b41e7 | 9329 | |
| df22d223 AM |
9330 | if (sym->st_value > toc->rawsize) |
| 9331 | i = toc->rawsize >> 3; | |
| 9332 | else | |
| 9333 | i = sym->st_value >> 3; | |
| 854b41e7 | 9334 | |
| df22d223 AM |
9335 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9336 | { | |
| 9337 | if (local_toc_syms) | |
| 9338 | (*_bfd_error_handler) | |
| 9339 | (_("%s defined on removed toc entry"), | |
| 9340 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9341 | do | |
| 9342 | ++i; | |
| 9343 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9344 | sym->st_value = (bfd_vma) i << 3; | |
| 9345 | } | |
| d62b3684 | 9346 | |
| df22d223 AM |
9347 | sym->st_value -= skip[i]; |
| 9348 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9349 | } | |
| c5614fa4 | 9350 | |
| 854b41e7 | 9351 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9352 | if (toc_inf.global_toc_syms) |
| 9353 | { | |
| 9354 | toc_inf.toc = toc; | |
| 9355 | toc_inf.skip = skip; | |
| 9356 | toc_inf.global_toc_syms = FALSE; | |
| 9357 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9358 | &toc_inf); | |
| 9359 | } | |
| 854b41e7 AM |
9360 | |
| 9361 | if (toc->reloc_count != 0) | |
| 9362 | { | |
| d4730f92 | 9363 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9364 | Elf_Internal_Rela *wrel; |
| 9365 | bfd_size_type sz; | |
| 9366 | ||
| 854b41e7 | 9367 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9368 | if (toc_relocs == NULL) |
| 9369 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9370 | info->keep_memory); | |
| 9371 | if (toc_relocs == NULL) | |
| 9372 | goto error_ret; | |
| 9373 | ||
| 425b145b AM |
9374 | wrel = toc_relocs; |
| 9375 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9376 | if ((skip[rel->r_offset >> 3] |
| 9377 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9378 | { |
| 9379 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9380 | wrel->r_info = rel->r_info; | |
| 9381 | wrel->r_addend = rel->r_addend; | |
| 9382 | ++wrel; | |
| 9383 | } | |
| 9384 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9385 | &local_syms, NULL, NULL)) | |
| 9386 | goto error_ret; | |
| 9387 | ||
| 425b145b AM |
9388 | elf_section_data (toc)->relocs = toc_relocs; |
| 9389 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9390 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9391 | sz = rel_hdr->sh_entsize; | |
| 9392 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9393 | } |
| c5614fa4 | 9394 | } |
| 28be611c AM |
9395 | else if (toc_relocs != NULL |
| 9396 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9397 | free (toc_relocs); |
| c5614fa4 AM |
9398 | |
| 9399 | if (local_syms != NULL | |
| 9400 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9401 | { | |
| 9402 | if (!info->keep_memory) | |
| 9403 | free (local_syms); | |
| 9404 | else | |
| 9405 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9406 | } | |
| 9407 | free (skip); | |
| 9408 | } | |
| 9409 | ||
| 9410 | return TRUE; | |
| 9411 | } | |
| 9412 | ||
| 1bbe0902 AM |
9413 | /* Return true iff input section I references the TOC using |
| 9414 | instructions limited to +/-32k offsets. */ | |
| 9415 | ||
| 9416 | bfd_boolean | |
| 9417 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9418 | { | |
| 9419 | return (is_ppc64_elf (i->owner) | |
| 9420 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9421 | } | |
| 9422 | ||
| 927be08e AM |
9423 | /* Allocate space for one GOT entry. */ |
| 9424 | ||
| 9425 | static void | |
| 9426 | allocate_got (struct elf_link_hash_entry *h, | |
| 9427 | struct bfd_link_info *info, | |
| 9428 | struct got_entry *gent) | |
| 9429 | { | |
| 9430 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9431 | bfd_boolean dyn; | |
| 9432 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9433 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9434 | ? 16 : 8); | |
| 9435 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9436 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9437 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9438 | ||
| 9439 | gent->got.offset = got->size; | |
| 9440 | got->size += entsize; | |
| 9441 | ||
| 9442 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9443 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9444 | { |
| 33e44f2e | 9445 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9446 | htab->got_reli_size += rentsize; |
| 927be08e | 9447 | } |
| 0e1862bb | 9448 | else if ((bfd_link_pic (info) |
| 19e08130 AM |
9449 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 9450 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9451 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9452 | { |
| 19e08130 | 9453 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9454 | relgot->size += rentsize; |
| 927be08e AM |
9455 | } |
| 9456 | } | |
| 9457 | ||
| 7865406b AM |
9458 | /* This function merges got entries in the same toc group. */ |
| 9459 | ||
| 9460 | static void | |
| 9461 | merge_got_entries (struct got_entry **pent) | |
| 9462 | { | |
| 9463 | struct got_entry *ent, *ent2; | |
| 9464 | ||
| 9465 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9466 | if (!ent->is_indirect) | |
| 9467 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9468 | if (!ent2->is_indirect | |
| 9469 | && ent2->addend == ent->addend | |
| 9470 | && ent2->tls_type == ent->tls_type | |
| 9471 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9472 | { | |
| 9473 | ent2->is_indirect = TRUE; | |
| 9474 | ent2->got.ent = ent; | |
| 9475 | } | |
| 9476 | } | |
| 9477 | ||
| 65f38f15 AM |
9478 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9479 | dynamic relocs. */ | |
| 5bd4f169 | 9480 | |
| b34976b6 | 9481 | static bfd_boolean |
| 4ce794b7 | 9482 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9483 | { |
| 65f38f15 AM |
9484 | struct bfd_link_info *info; |
| 9485 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9486 | asection *s; |
| 65f38f15 | 9487 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9488 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9489 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9490 | |
| e92d460e | 9491 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9492 | return TRUE; |
| 5bd4f169 | 9493 | |
| 65f38f15 AM |
9494 | info = (struct bfd_link_info *) inf; |
| 9495 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9496 | if (htab == NULL) |
| 9497 | return FALSE; | |
| 5bd4f169 | 9498 | |
| e054468f AM |
9499 | if ((htab->elf.dynamic_sections_created |
| 9500 | && h->dynindx != -1 | |
| 0e1862bb | 9501 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
| e054468f | 9502 | || h->type == STT_GNU_IFUNC) |
| 5bd4f169 | 9503 | { |
| 411e1bfb AM |
9504 | struct plt_entry *pent; |
| 9505 | bfd_boolean doneone = FALSE; | |
| 9506 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9507 | if (pent->plt.refcount > 0) | |
| 9508 | { | |
| 25f23106 AM |
9509 | if (!htab->elf.dynamic_sections_created |
| 9510 | || h->dynindx == -1) | |
| e054468f | 9511 | { |
| 33e44f2e | 9512 | s = htab->elf.iplt; |
| e054468f | 9513 | pent->plt.offset = s->size; |
| b9e5796b | 9514 | s->size += PLT_ENTRY_SIZE (htab); |
| 33e44f2e | 9515 | s = htab->elf.irelplt; |
| e054468f AM |
9516 | } |
| 9517 | else | |
| 9518 | { | |
| 9519 | /* If this is the first .plt entry, make room for the special | |
| 9520 | first entry. */ | |
| 33e44f2e | 9521 | s = htab->elf.splt; |
| e054468f | 9522 | if (s->size == 0) |
| b9e5796b | 9523 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); |
| e054468f AM |
9524 | |
| 9525 | pent->plt.offset = s->size; | |
| 9526 | ||
| 9527 | /* Make room for this entry. */ | |
| b9e5796b | 9528 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f AM |
9529 | |
| 9530 | /* Make room for the .glink code. */ | |
| 9531 | s = htab->glink; | |
| 9532 | if (s->size == 0) | |
| 9533 | s->size += GLINK_CALL_STUB_SIZE; | |
| b9e5796b AM |
9534 | if (htab->opd_abi) |
| 9535 | { | |
| 9536 | /* We need bigger stubs past index 32767. */ | |
| 9537 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9538 | s->size += 4; | |
| 9539 | s->size += 2*4; | |
| 9540 | } | |
| 9541 | else | |
| e054468f | 9542 | s->size += 4; |
| e054468f AM |
9543 | |
| 9544 | /* We also need to make an entry in the .rela.plt section. */ | |
| 33e44f2e | 9545 | s = htab->elf.srelplt; |
| e054468f | 9546 | } |
| eea6121a | 9547 | s->size += sizeof (Elf64_External_Rela); |
| 411e1bfb AM |
9548 | doneone = TRUE; |
| 9549 | } | |
| 9550 | else | |
| 9551 | pent->plt.offset = (bfd_vma) -1; | |
| 9552 | if (!doneone) | |
| 65f38f15 | 9553 | { |
| 411e1bfb | 9554 | h->plt.plist = NULL; |
| f5385ebf | 9555 | h->needs_plt = 0; |
| 65f38f15 AM |
9556 | } |
| 9557 | } | |
| 9558 | else | |
| 9559 | { | |
| 411e1bfb | 9560 | h->plt.plist = NULL; |
| f5385ebf | 9561 | h->needs_plt = 0; |
| 65f38f15 AM |
9562 | } |
| 9563 | ||
| 951fd09b AM |
9564 | eh = (struct ppc_link_hash_entry *) h; |
| 9565 | /* Run through the TLS GD got entries first if we're changing them | |
| 9566 | to TPREL. */ | |
| e7b938ca | 9567 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9568 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9569 | if (gent->got.refcount > 0 | |
| 9570 | && (gent->tls_type & TLS_GD) != 0) | |
| 9571 | { | |
| 9572 | /* This was a GD entry that has been converted to TPREL. If | |
| 9573 | there happens to be a TPREL entry we can use that one. */ | |
| 9574 | struct got_entry *ent; | |
| 9575 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9576 | if (ent->got.refcount > 0 | |
| 9577 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9578 | && ent->addend == gent->addend |
| 9579 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9580 | { |
| 9581 | gent->got.refcount = 0; | |
| 9582 | break; | |
| 9583 | } | |
| 9584 | ||
| 9585 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9586 | if (gent->got.refcount != 0) | |
| 9587 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9588 | } | |
| 9589 | ||
| 7865406b AM |
9590 | /* Remove any list entry that won't generate a word in the GOT before |
| 9591 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9592 | entries. */ | |
| 0b8bcf0d AM |
9593 | pgent = &h->got.glist; |
| 9594 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9595 | if (gent->got.refcount > 0) |
| 7865406b AM |
9596 | { |
| 9597 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9598 | && !h->def_dynamic) | |
| 9599 | { | |
| 9600 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9601 | *pgent = gent->next; | |
| 9602 | } | |
| 9603 | else | |
| 9604 | pgent = &gent->next; | |
| 9605 | } | |
| 9606 | else | |
| 9607 | *pgent = gent->next; | |
| 9608 | ||
| 9609 | if (!htab->do_multi_toc) | |
| 9610 | merge_got_entries (&h->got.glist); | |
| 9611 | ||
| 9612 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9613 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9614 | { |
| 9615 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9616 | Undefined weak syms won't yet be marked as dynamic, |
| 9617 | nor will all TLS symbols. */ | |
| 411e1bfb | 9618 | if (h->dynindx == -1 |
| b099ab9f | 9619 | && !h->forced_local |
| 25f23106 | 9620 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9621 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9622 | { |
| c152c796 | 9623 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9624 | return FALSE; |
| 9625 | } | |
| 65f38f15 | 9626 | |
| 0c8d6e5c | 9627 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9628 | abort (); |
| 0ffa91dd | 9629 | |
| 927be08e | 9630 | allocate_got (h, info, gent); |
| 411e1bfb | 9631 | } |
| 65f38f15 | 9632 | |
| b099ab9f | 9633 | if (eh->dyn_relocs == NULL |
| 25f23106 | 9634 | || (!htab->elf.dynamic_sections_created |
| 14b5f73f | 9635 | && h->type != STT_GNU_IFUNC)) |
| b34976b6 | 9636 | return TRUE; |
| 65f38f15 AM |
9637 | |
| 9638 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 9639 | dynamic pc-relative relocs against symbols which turn out to be | |
| 9640 | defined in regular objects. For the normal shared case, discard | |
| 9641 | space for relocs that have become local due to symbol visibility | |
| 9642 | changes. */ | |
| 9643 | ||
| 0e1862bb | 9644 | if (bfd_link_pic (info)) |
| 65f38f15 | 9645 | { |
| 9c7a29a3 | 9646 | /* Relocs that use pc_count are those that appear on a call insn, |
| 1d483afe | 9647 | or certain REL relocs (see must_be_dyn_reloc) that can be |
| 9c7a29a3 AM |
9648 | generated via assembly. We want calls to protected symbols to |
| 9649 | resolve directly to the function rather than going via the plt. | |
| 9650 | If people want function pointer comparisons to work as expected | |
| 9651 | then they should avoid writing weird assembly. */ | |
| 09695f56 | 9652 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 65f38f15 | 9653 | { |
| 6061a67d | 9654 | struct elf_dyn_relocs **pp; |
| 65f38f15 AM |
9655 | |
| 9656 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 5bd4f169 | 9657 | { |
| 65f38f15 AM |
9658 | p->count -= p->pc_count; |
| 9659 | p->pc_count = 0; | |
| 9660 | if (p->count == 0) | |
| 9661 | *pp = p->next; | |
| 9662 | else | |
| 9663 | pp = &p->next; | |
| 5bd4f169 | 9664 | } |
| 65f38f15 | 9665 | } |
| 4e795f50 AM |
9666 | |
| 9667 | /* Also discard relocs on undefined weak syms with non-default | |
| 9668 | visibility. */ | |
| cab87ef9 AM |
9669 | if (eh->dyn_relocs != NULL |
| 9670 | && h->root.type == bfd_link_hash_undefweak) | |
| dfbb6ac9 AM |
9671 | { |
| 9672 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9673 | eh->dyn_relocs = NULL; | |
| 9674 | ||
| 9675 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9676 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9677 | else if (h->dynindx == -1 | |
| 9678 | && !h->forced_local) | |
| 9679 | { | |
| 9680 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9681 | return FALSE; | |
| 9682 | } | |
| 9683 | } | |
| 65f38f15 | 9684 | } |
| 25f23106 AM |
9685 | else if (h->type == STT_GNU_IFUNC) |
| 9686 | { | |
| 9687 | if (!h->non_got_ref) | |
| 9688 | eh->dyn_relocs = NULL; | |
| 9689 | } | |
| f4656909 | 9690 | else if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 AM |
9691 | { |
| 9692 | /* For the non-shared case, discard space for relocs against | |
| 9693 | symbols which turn out to need copy relocs or are not | |
| 9694 | dynamic. */ | |
| 9695 | ||
| f5385ebf | 9696 | if (!h->non_got_ref |
| f5385ebf | 9697 | && !h->def_regular) |
| 65f38f15 AM |
9698 | { |
| 9699 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9700 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9701 | if (h->dynindx == -1 | |
| f5385ebf | 9702 | && !h->forced_local) |
| 65f38f15 | 9703 | { |
| c152c796 | 9704 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| b34976b6 | 9705 | return FALSE; |
| 65f38f15 AM |
9706 | } |
| 9707 | ||
| 9708 | /* If that succeeded, we know we'll be keeping all the | |
| 9709 | relocs. */ | |
| 9710 | if (h->dynindx != -1) | |
| 9711 | goto keep; | |
| 9712 | } | |
| 9713 | ||
| 9714 | eh->dyn_relocs = NULL; | |
| 9715 | ||
| ec338859 | 9716 | keep: ; |
| 65f38f15 AM |
9717 | } |
| 9718 | ||
| 9719 | /* Finally, allocate space. */ | |
| 9720 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9721 | { | |
| 9722 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 19e08130 | 9723 | if (eh->elf.type == STT_GNU_IFUNC) |
| 33e44f2e | 9724 | sreloc = htab->elf.irelplt; |
| eea6121a | 9725 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
| 65f38f15 AM |
9726 | } |
| 9727 | ||
| b34976b6 | 9728 | return TRUE; |
| 65f38f15 AM |
9729 | } |
| 9730 | ||
| a345bc8d AM |
9731 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9732 | to set up space for global entry stubs. These are put in glink, | |
| 9733 | after the branch table. */ | |
| 65f38f15 | 9734 | |
| b34976b6 | 9735 | static bfd_boolean |
| a345bc8d | 9736 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9737 | { |
| a345bc8d AM |
9738 | struct bfd_link_info *info; |
| 9739 | struct ppc_link_hash_table *htab; | |
| 9740 | struct plt_entry *pent; | |
| 9741 | asection *s; | |
| 65f38f15 | 9742 | |
| a345bc8d AM |
9743 | if (h->root.type == bfd_link_hash_indirect) |
| 9744 | return TRUE; | |
| 65f38f15 | 9745 | |
| a345bc8d AM |
9746 | if (!h->pointer_equality_needed) |
| 9747 | return TRUE; | |
| 65f38f15 | 9748 | |
| a345bc8d AM |
9749 | if (h->def_regular) |
| 9750 | return TRUE; | |
| 65f38f15 | 9751 | |
| a345bc8d AM |
9752 | info = inf; |
| 9753 | htab = ppc_hash_table (info); | |
| 9754 | if (htab == NULL) | |
| 9755 | return FALSE; | |
| 9756 | ||
| 9757 | s = htab->glink; | |
| 9758 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9759 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9760 | && pent->addend == 0) | |
| 9761 | { | |
| afe397ea AM |
9762 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9763 | and we are not generating a shared library or pie, then we | |
| 9764 | need to define the symbol in the executable on a call stub. | |
| 9765 | This is to avoid text relocations. */ | |
| a345bc8d | 9766 | s->size = (s->size + 15) & -16; |
| afe397ea AM |
9767 | h->root.u.def.section = s; |
| 9768 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9769 | s->size += 16; |
| 9770 | break; | |
| 9771 | } | |
| 9772 | return TRUE; | |
| 9773 | } | |
| 9774 | ||
| 9775 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9776 | read-only sections. */ | |
| 9777 | ||
| 9778 | static bfd_boolean | |
| 9779 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9780 | { | |
| 9781 | if (h->root.type == bfd_link_hash_indirect) | |
| 9782 | return TRUE; | |
| 9783 | ||
| 9784 | if (readonly_dynrelocs (h)) | |
| 9785 | { | |
| 9786 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9787 | ||
| 9788 | /* Not an error, just cut short the traversal. */ | |
| 9789 | return FALSE; | |
| 65f38f15 | 9790 | } |
| b34976b6 | 9791 | return TRUE; |
| 65f38f15 AM |
9792 | } |
| 9793 | ||
| 9794 | /* Set the sizes of the dynamic sections. */ | |
| 9795 | ||
| b34976b6 | 9796 | static bfd_boolean |
| ee67d69a | 9797 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9798 | struct bfd_link_info *info) |
| 65f38f15 AM |
9799 | { |
| 9800 | struct ppc_link_hash_table *htab; | |
| 9801 | bfd *dynobj; | |
| 9802 | asection *s; | |
| b34976b6 | 9803 | bfd_boolean relocs; |
| 65f38f15 | 9804 | bfd *ibfd; |
| 7865406b | 9805 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9806 | |
| 9807 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9808 | if (htab == NULL) |
| 9809 | return FALSE; | |
| 9810 | ||
| 65f38f15 AM |
9811 | dynobj = htab->elf.dynobj; |
| 9812 | if (dynobj == NULL) | |
| 9813 | abort (); | |
| 9814 | ||
| 9815 | if (htab->elf.dynamic_sections_created) | |
| 9816 | { | |
| 9817 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9818 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9819 | { |
| 3d4d4302 | 9820 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9821 | if (s == NULL) |
| 9822 | abort (); | |
| eea6121a | 9823 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9824 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9825 | } | |
| 9826 | } | |
| 9827 | ||
| 9828 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9829 | relocs. */ | |
| c72f2fb2 | 9830 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9831 | { |
| 411e1bfb AM |
9832 | struct got_entry **lgot_ents; |
| 9833 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9834 | struct plt_entry **local_plt; |
| 9835 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9836 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9837 | bfd_size_type locsymcount; |
| 9838 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9839 | |
| 0c8d6e5c | 9840 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9841 | continue; |
| 9842 | ||
| 9843 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9844 | { | |
| 19e08130 | 9845 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9846 | |
| 6edfbbad | 9847 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9848 | { |
| ec338859 AM |
9849 | if (!bfd_is_abs_section (p->sec) |
| 9850 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9851 | { | |
| 9852 | /* Input section has been discarded, either because | |
| 9853 | it is a copy of a linkonce section or due to | |
| 9854 | linker script /DISCARD/, so we'll be discarding | |
| 9855 | the relocs too. */ | |
| 9856 | } | |
| 248866a8 | 9857 | else if (p->count != 0) |
| ec338859 | 9858 | { |
| 19e08130 AM |
9859 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9860 | if (p->ifunc) | |
| 33e44f2e | 9861 | srel = htab->elf.irelplt; |
| eea6121a | 9862 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9863 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9864 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9865 | } |
| 65f38f15 AM |
9866 | } |
| 9867 | } | |
| 9868 | ||
| 411e1bfb AM |
9869 | lgot_ents = elf_local_got_ents (ibfd); |
| 9870 | if (!lgot_ents) | |
| 65f38f15 AM |
9871 | continue; |
| 9872 | ||
| 0ffa91dd | 9873 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9874 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9875 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9876 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9877 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9878 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9879 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9880 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9881 | { |
| 0b8bcf0d | 9882 | struct got_entry **pent, *ent; |
| 411e1bfb | 9883 | |
| 0b8bcf0d AM |
9884 | pent = lgot_ents; |
| 9885 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9886 | if (ent->got.refcount > 0) |
| 9887 | { | |
| e7b938ca | 9888 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9889 | { |
| 927be08e | 9890 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9891 | *pent = ent->next; |
| 411e1bfb AM |
9892 | } |
| 9893 | else | |
| 9894 | { | |
| 19e08130 AM |
9895 | unsigned int ent_size = 8; |
| 9896 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9897 | ||
| eea6121a | 9898 | ent->got.offset = s->size; |
| e7b938ca | 9899 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9900 | { |
| 19e08130 AM |
9901 | ent_size *= 2; |
| 9902 | rel_size *= 2; | |
| 9903 | } | |
| 9904 | s->size += ent_size; | |
| 9905 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9906 | { | |
| 33e44f2e | 9907 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
9908 | htab->got_reli_size += rel_size; |
| 9909 | } | |
| 0e1862bb | 9910 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
9911 | { |
| 9912 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9913 | srel->size += rel_size; | |
| 927be08e | 9914 | } |
| 0b8bcf0d | 9915 | pent = &ent->next; |
| 411e1bfb AM |
9916 | } |
| 9917 | } | |
| 9918 | else | |
| 0b8bcf0d | 9919 | *pent = ent->next; |
| 65f38f15 | 9920 | } |
| e054468f AM |
9921 | |
| 9922 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9923 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9924 | { | |
| 9925 | struct plt_entry *ent; | |
| 9926 | ||
| 9927 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9928 | if (ent->plt.refcount > 0) | |
| 9929 | { | |
| 33e44f2e | 9930 | s = htab->elf.iplt; |
| e054468f | 9931 | ent->plt.offset = s->size; |
| b9e5796b | 9932 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 9933 | |
| 33e44f2e | 9934 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9935 | } |
| 9936 | else | |
| 9937 | ent->plt.offset = (bfd_vma) -1; | |
| 9938 | } | |
| 65f38f15 AM |
9939 | } |
| 9940 | ||
| 9941 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9942 | sym dynamic relocs. */ | |
| 4ce794b7 | 9943 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
9944 | /* Stash the end of glink branch table. */ |
| 9945 | if (htab->glink != NULL) | |
| 9946 | htab->glink->rawsize = htab->glink->size; | |
| 9947 | ||
| 0e1862bb | 9948 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 9949 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 9950 | |
| 7865406b | 9951 | first_tlsld = NULL; |
| c72f2fb2 | 9952 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 9953 | { |
| 7865406b AM |
9954 | struct got_entry *ent; |
| 9955 | ||
| 0c8d6e5c | 9956 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
9957 | continue; |
| 9958 | ||
| 7865406b AM |
9959 | ent = ppc64_tlsld_got (ibfd); |
| 9960 | if (ent->got.refcount > 0) | |
| 102890f0 | 9961 | { |
| 7865406b | 9962 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 9963 | { |
| 7865406b AM |
9964 | ent->is_indirect = TRUE; |
| 9965 | ent->got.ent = first_tlsld; | |
| 9966 | } | |
| 9967 | else | |
| 9968 | { | |
| 9969 | if (first_tlsld == NULL) | |
| 9970 | first_tlsld = ent; | |
| 9971 | s = ppc64_elf_tdata (ibfd)->got; | |
| 9972 | ent->got.offset = s->size; | |
| 9973 | ent->owner = ibfd; | |
| 9974 | s->size += 16; | |
| 0e1862bb | 9975 | if (bfd_link_pic (info)) |
| 7865406b AM |
9976 | { |
| 9977 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9978 | srel->size += sizeof (Elf64_External_Rela); | |
| 9979 | } | |
| 102890f0 AM |
9980 | } |
| 9981 | } | |
| 9982 | else | |
| 7865406b | 9983 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
9984 | } |
| 9985 | ||
| 65f38f15 AM |
9986 | /* We now have determined the sizes of the various dynamic sections. |
| 9987 | Allocate memory for them. */ | |
| b34976b6 | 9988 | relocs = FALSE; |
| 65f38f15 AM |
9989 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 9990 | { | |
| 9991 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9992 | continue; | |
| 9993 | ||
| 4ce794b7 | 9994 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
9995 | /* These haven't been allocated yet; don't strip. */ |
| 9996 | continue; | |
| 33e44f2e AM |
9997 | else if (s == htab->elf.sgot |
| 9998 | || s == htab->elf.splt | |
| 9999 | || s == htab->elf.iplt | |
| c456f082 AM |
10000 | || s == htab->glink |
| 10001 | || s == htab->dynbss) | |
| 65f38f15 AM |
10002 | { |
| 10003 | /* Strip this section if we don't need it; see the | |
| 10004 | comment below. */ | |
| 5bd4f169 | 10005 | } |
| 58d180e8 AM |
10006 | else if (s == htab->glink_eh_frame) |
| 10007 | { | |
| 10008 | if (!bfd_is_abs_section (s->output_section)) | |
| 10009 | /* Not sized yet. */ | |
| 10010 | continue; | |
| 10011 | } | |
| 70cc837d | 10012 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10013 | { |
| c456f082 | 10014 | if (s->size != 0) |
| 5bd4f169 | 10015 | { |
| 33e44f2e | 10016 | if (s != htab->elf.srelplt) |
| b34976b6 | 10017 | relocs = TRUE; |
| 5bd4f169 AM |
10018 | |
| 10019 | /* We use the reloc_count field as a counter if we need | |
| 10020 | to copy relocs into the output file. */ | |
| 10021 | s->reloc_count = 0; | |
| 10022 | } | |
| 10023 | } | |
| 65f38f15 | 10024 | else |
| 5bd4f169 AM |
10025 | { |
| 10026 | /* It's not one of our sections, so don't allocate space. */ | |
| 10027 | continue; | |
| 10028 | } | |
| 10029 | ||
| eea6121a | 10030 | if (s->size == 0) |
| 5bd4f169 | 10031 | { |
| c456f082 AM |
10032 | /* If we don't need this section, strip it from the |
| 10033 | output file. This is mostly to handle .rela.bss and | |
| 10034 | .rela.plt. We must create both sections in | |
| 10035 | create_dynamic_sections, because they must be created | |
| 10036 | before the linker maps input sections to output | |
| 10037 | sections. The linker does that before | |
| 10038 | adjust_dynamic_symbol is called, and it is that | |
| 10039 | function which decides whether anything needs to go | |
| 10040 | into these sections. */ | |
| 8423293d | 10041 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10042 | continue; |
| 10043 | } | |
| 10044 | ||
| c456f082 | 10045 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10046 | continue; |
| 10047 | ||
| 65f38f15 AM |
10048 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10049 | here in case unused entries are not reclaimed before the | |
| 10050 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10051 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10052 | sections instead of garbage. | |
| 10053 | We also rely on the section contents being zero when writing | |
| 10054 | the GOT. */ | |
| eea6121a | 10055 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10056 | if (s->contents == NULL) |
| b34976b6 | 10057 | return FALSE; |
| 5bd4f169 AM |
10058 | } |
| 10059 | ||
| c72f2fb2 | 10060 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10061 | { |
| 0c8d6e5c | 10062 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10063 | continue; |
| 10064 | ||
| e717da7e | 10065 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10066 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10067 | { |
| eea6121a | 10068 | if (s->size == 0) |
| 8423293d | 10069 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10070 | else |
| 10071 | { | |
| eea6121a | 10072 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10073 | if (s->contents == NULL) |
| 10074 | return FALSE; | |
| 10075 | } | |
| 10076 | } | |
| 10077 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10078 | if (s != NULL) | |
| 10079 | { | |
| eea6121a | 10080 | if (s->size == 0) |
| 8423293d | 10081 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10082 | else |
| 10083 | { | |
| eea6121a | 10084 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10085 | if (s->contents == NULL) |
| 10086 | return FALSE; | |
| 10087 | relocs = TRUE; | |
| 10088 | s->reloc_count = 0; | |
| 10089 | } | |
| 10090 | } | |
| 10091 | } | |
| 10092 | ||
| e86ce104 | 10093 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10094 | { |
| e8910a83 AM |
10095 | bfd_boolean tls_opt; |
| 10096 | ||
| 5bd4f169 AM |
10097 | /* Add some entries to the .dynamic section. We fill in the |
| 10098 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10099 | must add the entries now so that we get the correct size for | |
| 10100 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10101 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10102 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10103 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10104 | |
| 0e1862bb | 10105 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10106 | { |
| dc810e39 | 10107 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10108 | return FALSE; |
| 5bd4f169 AM |
10109 | } |
| 10110 | ||
| 33e44f2e | 10111 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10112 | { |
| dc810e39 AM |
10113 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10114 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10115 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10116 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10117 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10118 | return FALSE; |
| 5bd4f169 AM |
10119 | } |
| 10120 | ||
| ee67d69a | 10121 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10122 | { |
| 10123 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10124 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10125 | return FALSE; |
| 19397422 AM |
10126 | } |
| 10127 | ||
| 7c9cf415 | 10128 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10129 | && htab->tls_get_addr_fd != NULL |
| 10130 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10131 | if (tls_opt || !htab->opd_abi) | |
| 10132 | { | |
| 10133 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10134 | return FALSE; | |
| 10135 | } | |
| a7f2871e | 10136 | |
| 5bd4f169 AM |
10137 | if (relocs) |
| 10138 | { | |
| dc810e39 AM |
10139 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10140 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10141 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10142 | return FALSE; |
| 5bd4f169 | 10143 | |
| 65f38f15 AM |
10144 | /* If any dynamic relocs apply to a read-only section, |
| 10145 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10146 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10147 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10148 | |
| 65f38f15 | 10149 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10150 | { |
| 65f38f15 | 10151 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10152 | return FALSE; |
| 5bd4f169 | 10153 | } |
| 5bd4f169 | 10154 | } |
| 5bd4f169 | 10155 | } |
| 65f38f15 | 10156 | #undef add_dynamic_entry |
| 5bd4f169 | 10157 | |
| b34976b6 | 10158 | return TRUE; |
| 5bd4f169 AM |
10159 | } |
| 10160 | ||
| a345bc8d AM |
10161 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10162 | ||
| 10163 | static bfd_boolean | |
| 10164 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10165 | { | |
| 10166 | if (h->plt.plist != NULL | |
| 10167 | && !h->def_regular | |
| 10168 | && !h->pointer_equality_needed) | |
| 10169 | return FALSE; | |
| 10170 | ||
| 10171 | return _bfd_elf_hash_symbol (h); | |
| 10172 | } | |
| 10173 | ||
| 721956f4 | 10174 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10175 | |
| 4ce794b7 AM |
10176 | static inline enum ppc_stub_type |
| 10177 | ppc_type_of_stub (asection *input_sec, | |
| 10178 | const Elf_Internal_Rela *rel, | |
| 10179 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10180 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10181 | bfd_vma destination, |
| 10182 | unsigned long local_off) | |
| 5bd4f169 | 10183 | { |
| 721956f4 AM |
10184 | struct ppc_link_hash_entry *h = *hash; |
| 10185 | bfd_vma location; | |
| 10186 | bfd_vma branch_offset; | |
| 10187 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10188 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10189 | |
| 721956f4 AM |
10190 | if (h != NULL) |
| 10191 | { | |
| e054468f | 10192 | struct plt_entry *ent; |
| 7fe2b9a6 | 10193 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10194 | if (h->oh != NULL |
| 10195 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10196 | { |
| 10197 | fdh = ppc_follow_link (h->oh); | |
| 10198 | *hash = fdh; | |
| 10199 | } | |
| 8387904d | 10200 | |
| e054468f AM |
10201 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10202 | if (ent->addend == rel->r_addend | |
| 10203 | && ent->plt.offset != (bfd_vma) -1) | |
| 10204 | { | |
| e054468f AM |
10205 | *plt_ent = ent; |
| 10206 | return ppc_stub_plt_call; | |
| 10207 | } | |
| 5bd4f169 | 10208 | |
| 7fe2b9a6 AM |
10209 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10210 | either a defined function descriptor or a defined entry symbol | |
| 10211 | in a regular object file, then it is pointless trying to make | |
| 10212 | any other type of stub. */ | |
| 854b41e7 AM |
10213 | if (!is_static_defined (&fdh->elf) |
| 10214 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10215 | return ppc_stub_none; |
| 5d1634d7 | 10216 | } |
| e054468f AM |
10217 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10218 | { | |
| 10219 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10220 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10221 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10222 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10223 | ||
| 10224 | if (local_plt[r_symndx] != NULL) | |
| 10225 | { | |
| 10226 | struct plt_entry *ent; | |
| 10227 | ||
| 10228 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10229 | if (ent->addend == rel->r_addend | |
| 10230 | && ent->plt.offset != (bfd_vma) -1) | |
| 10231 | { | |
| 10232 | *plt_ent = ent; | |
| 10233 | return ppc_stub_plt_call; | |
| 10234 | } | |
| 10235 | } | |
| 10236 | } | |
| 5d1634d7 | 10237 | |
| 721956f4 AM |
10238 | /* Determine where the call point is. */ |
| 10239 | location = (input_sec->output_offset | |
| 10240 | + input_sec->output_section->vma | |
| 10241 | + rel->r_offset); | |
| 5d1634d7 | 10242 | |
| 721956f4 AM |
10243 | branch_offset = destination - location; |
| 10244 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10245 | |
| 721956f4 AM |
10246 | /* Determine if a long branch stub is needed. */ |
| 10247 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10248 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10249 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10250 | |
| 6911b7dc | 10251 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10252 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10253 | is needed later. */ | |
| 10254 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10255 | |
| 721956f4 | 10256 | return ppc_stub_none; |
| 5d1634d7 AM |
10257 | } |
| 10258 | ||
| 794e51c0 AM |
10259 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10260 | to update a plt entry in one thread and have another thread see a | |
| 10261 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10262 | barrier in the call stub. One solution is to make the load of the | |
| 10263 | toc word seem to appear to depend on the load of the function entry | |
| 10264 | word. Another solution is to test for r2 being zero, and branch to | |
| 10265 | the appropriate glink entry if so. | |
| 10266 | ||
| 10267 | . fake dep barrier compare | |
| 71a39c98 AM |
10268 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10269 | . mtctr 12 mtctr 12 | |
| 10270 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10271 | . add 2,2,11 cmpldi 2,0 |
| 10272 | . ld 2,xxx+8(2) bnectr+ | |
| 10273 | . bctr b <glink_entry> | |
| 10274 | ||
| 10275 | The solution involving the compare turns out to be faster, so | |
| 10276 | that's what we use unless the branch won't reach. */ | |
| 10277 | ||
| 10278 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10279 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10280 | |
| 5d1634d7 AM |
10281 | #define PPC_LO(v) ((v) & 0xffff) |
| 10282 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10283 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10284 | ||
| 794e51c0 AM |
10285 | static inline unsigned int |
| 10286 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10287 | struct ppc_stub_hash_entry *stub_entry, | |
| 10288 | bfd_vma off) | |
| 10289 | { | |
| b9e5796b AM |
10290 | unsigned size = 12; |
| 10291 | ||
| 10292 | if (ALWAYS_EMIT_R2SAVE | |
| 10293 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10294 | size += 4; | |
| 10295 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10296 | size += 4; |
| b9e5796b AM |
10297 | if (htab->opd_abi) |
| 10298 | { | |
| 10299 | size += 4; | |
| e7d1c40c | 10300 | if (htab->params->plt_static_chain) |
| b9e5796b | 10301 | size += 4; |
| bd4d2eaa AM |
10302 | if (htab->params->plt_thread_safe |
| 10303 | && htab->elf.dynamic_sections_created | |
| 10304 | && stub_entry->h != NULL | |
| 10305 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10306 | size += 8; |
| e7d1c40c | 10307 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10308 | size += 4; |
| 10309 | } | |
| 794e51c0 AM |
10310 | if (stub_entry->h != NULL |
| 10311 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10312 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10313 | && htab->params->tls_get_addr_opt) |
| 794e51c0 AM |
10314 | size += 13 * 4; |
| 10315 | return size; | |
| 10316 | } | |
| 10317 | ||
| 10318 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10319 | then return the padding needed to do so. */ | |
| 10320 | static inline unsigned int | |
| 10321 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10322 | struct ppc_stub_hash_entry *stub_entry, | |
| 10323 | bfd_vma plt_off) | |
| 10324 | { | |
| e7d1c40c | 10325 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10326 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10327 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10328 | |
| 10329 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10330 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10331 | return stub_align - (stub_off & (stub_align - 1)); |
| 10332 | return 0; | |
| 10333 | } | |
| 10334 | ||
| 10335 | /* Build a .plt call stub. */ | |
| 10336 | ||
| 10337 | static inline bfd_byte * | |
| 10338 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10339 | struct ppc_stub_hash_entry *stub_entry, | |
| 10340 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10341 | { | |
| e7d1c40c | 10342 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10343 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10344 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10345 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10346 | && htab->elf.dynamic_sections_created | |
| 10347 | && stub_entry->h != NULL | |
| 10348 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10349 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10350 | bfd_vma cmp_branch_off = 0; | |
| 10351 | ||
| 10352 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10353 | && plt_load_toc |
| 794e51c0 | 10354 | && plt_thread_safe |
| bd4d2eaa AM |
10355 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10356 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10357 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10358 | { |
| 10359 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10360 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10361 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10362 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10363 | bfd_vma to, from; | |
| 10364 | ||
| 68d62958 AM |
10365 | if (pltindex > 32768) |
| 10366 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10367 | to = (glinkoff |
| 10368 | + htab->glink->output_offset | |
| 10369 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10370 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10371 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10372 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10373 | + 4 * (PPC_HA (offset) != 0) | |
| 10374 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10375 | != PPC_HA (offset)) | |
| 10376 | + 4 * (plt_static_chain != 0) | |
| 10377 | + 20 | |
| 6f20ed8a AM |
10378 | + stub_entry->group->stub_sec->output_offset |
| 10379 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10380 | cmp_branch_off = to - from; |
| 10381 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10382 | } | |
| 10383 | ||
| ac2df442 AM |
10384 | if (PPC_HA (offset) != 0) |
| 10385 | { | |
| 176a0d42 AM |
10386 | if (r != NULL) |
| 10387 | { | |
| 794e51c0 AM |
10388 | if (ALWAYS_EMIT_R2SAVE |
| 10389 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10390 | r[0].r_offset += 4; | |
| 176a0d42 | 10391 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10392 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10393 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10394 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10395 | if (plt_load_toc) |
| 176a0d42 | 10396 | { |
| b9e5796b | 10397 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10398 | { |
| b9e5796b AM |
10399 | r[2].r_offset = r[1].r_offset + 4; |
| 10400 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10401 | r[2].r_addend = r[0].r_addend; | |
| 10402 | } | |
| 10403 | else | |
| 10404 | { | |
| 10405 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10406 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10407 | r[2].r_addend = r[0].r_addend + 8; | |
| 10408 | if (plt_static_chain) | |
| 10409 | { | |
| 10410 | r[3].r_offset = r[2].r_offset + 4; | |
| 10411 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10412 | r[3].r_addend = r[0].r_addend + 16; | |
| 10413 | } | |
| c7131b65 | 10414 | } |
| 176a0d42 AM |
10415 | } |
| 10416 | } | |
| 794e51c0 AM |
10417 | if (ALWAYS_EMIT_R2SAVE |
| 10418 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10419 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10420 | if (plt_load_toc) |
| 10421 | { | |
| 10422 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10423 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10424 | } | |
| 10425 | else | |
| 10426 | { | |
| 10427 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10428 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10429 | } | |
| b9e5796b AM |
10430 | if (plt_load_toc |
| 10431 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10432 | { |
| 71a39c98 | 10433 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10434 | offset = 0; |
| 10435 | } | |
| 71a39c98 | 10436 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10437 | if (plt_load_toc) |
| 794e51c0 | 10438 | { |
| b9e5796b AM |
10439 | if (use_fake_dep) |
| 10440 | { | |
| 10441 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10442 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10443 | } | |
| 10444 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10445 | if (plt_static_chain) | |
| 10446 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10447 | } |
| ac2df442 AM |
10448 | } |
| 10449 | else | |
| 10450 | { | |
| 176a0d42 AM |
10451 | if (r != NULL) |
| 10452 | { | |
| 794e51c0 AM |
10453 | if (ALWAYS_EMIT_R2SAVE |
| 10454 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10455 | r[0].r_offset += 4; | |
| 176a0d42 | 10456 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10457 | if (plt_load_toc) |
| 176a0d42 | 10458 | { |
| b9e5796b | 10459 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10460 | { |
| b9e5796b AM |
10461 | r[1].r_offset = r[0].r_offset + 4; |
| 10462 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10463 | r[1].r_addend = r[0].r_addend; | |
| 10464 | } | |
| 10465 | else | |
| 10466 | { | |
| 10467 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10468 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10469 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10470 | if (plt_static_chain) | |
| 10471 | { | |
| 10472 | r[2].r_offset = r[1].r_offset + 4; | |
| 10473 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10474 | r[2].r_addend = r[0].r_addend + 8; | |
| 10475 | } | |
| c7131b65 | 10476 | } |
| 176a0d42 AM |
10477 | } |
| 10478 | } | |
| 794e51c0 AM |
10479 | if (ALWAYS_EMIT_R2SAVE |
| 10480 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10481 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10482 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10483 | if (plt_load_toc |
| 10484 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10485 | { |
| 10486 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10487 | offset = 0; | |
| 10488 | } | |
| 71a39c98 | 10489 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10490 | if (plt_load_toc) |
| 794e51c0 | 10491 | { |
| b9e5796b AM |
10492 | if (use_fake_dep) |
| 10493 | { | |
| 10494 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10495 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10496 | } | |
| 10497 | if (plt_static_chain) | |
| 10498 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10499 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10500 | } |
| ac2df442 | 10501 | } |
| b9e5796b | 10502 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10503 | { |
| 10504 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10505 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10506 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10507 | } |
| 10508 | else | |
| 10509 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10510 | return p; |
| 10511 | } | |
| 10512 | ||
| a7f2871e AM |
10513 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10514 | ||
| 10515 | #define LD_R11_0R3 0xe9630000 | |
| 10516 | #define LD_R12_0R3 0xe9830000 | |
| 10517 | #define MR_R0_R3 0x7c601b78 | |
| 10518 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10519 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10520 | #define BEQLR 0x4d820020 | |
| 10521 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10522 | #define STD_R11_0R1 0xf9610000 |
| 10523 | #define BCTRL 0x4e800421 | |
| 10524 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10525 | #define MTLR_R11 0x7d6803a6 |
| 10526 | ||
| 10527 | static inline bfd_byte * | |
| 794e51c0 AM |
10528 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10529 | struct ppc_stub_hash_entry *stub_entry, | |
| 10530 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10531 | { |
| e7d1c40c | 10532 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10533 | |
| a7f2871e AM |
10534 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10535 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10536 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10537 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10538 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10539 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10540 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10541 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10542 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10543 | |
| 10544 | if (r != NULL) | |
| 10545 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10546 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10547 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10548 | ||
| a078d95a | 10549 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10550 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10551 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10552 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10553 | ||
| 10554 | return p; | |
| 10555 | } | |
| 10556 | ||
| 176a0d42 AM |
10557 | static Elf_Internal_Rela * |
| 10558 | get_relocs (asection *sec, int count) | |
| 10559 | { | |
| 10560 | Elf_Internal_Rela *relocs; | |
| 10561 | struct bfd_elf_section_data *elfsec_data; | |
| 10562 | ||
| 10563 | elfsec_data = elf_section_data (sec); | |
| 10564 | relocs = elfsec_data->relocs; | |
| 10565 | if (relocs == NULL) | |
| 10566 | { | |
| 10567 | bfd_size_type relsize; | |
| 10568 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10569 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10570 | if (relocs == NULL) | |
| 10571 | return NULL; | |
| 10572 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10573 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10574 | sizeof (Elf_Internal_Shdr)); | |
| 10575 | if (elfsec_data->rela.hdr == NULL) | |
| 10576 | return NULL; | |
| 10577 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10578 | * sizeof (Elf64_External_Rela)); | |
| 10579 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10580 | sec->reloc_count = 0; |
| 10581 | } | |
| 10582 | relocs += sec->reloc_count; | |
| 10583 | sec->reloc_count += count; | |
| 10584 | return relocs; | |
| 10585 | } | |
| 10586 | ||
| aa374f67 | 10587 | static bfd_vma |
| 25f53a85 | 10588 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10589 | struct ppc_stub_hash_entry *stub_entry) |
| 10590 | { | |
| 25f53a85 | 10591 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10592 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10593 | |
| 10594 | if (r2off == 0) | |
| 10595 | { | |
| 10596 | /* Support linking -R objects. Get the toc pointer from the | |
| 10597 | opd entry. */ | |
| 10598 | char buf[8]; | |
| b9e5796b AM |
10599 | if (!htab->opd_abi) |
| 10600 | return r2off; | |
| aa374f67 AM |
10601 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10602 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10603 | ||
| 10604 | if (strcmp (opd->name, ".opd") != 0 | |
| 10605 | || opd->reloc_count != 0) | |
| 10606 | { | |
| bc30df16 | 10607 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10608 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10609 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10610 | return (bfd_vma) -1; |
| aa374f67 AM |
10611 | } |
| 10612 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10613 | return (bfd_vma) -1; |
| aa374f67 | 10614 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10615 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10616 | } |
| 6f20ed8a | 10617 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10618 | return r2off; |
| 10619 | } | |
| 10620 | ||
| b34976b6 | 10621 | static bfd_boolean |
| 4ce794b7 | 10622 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10623 | { |
| 721956f4 AM |
10624 | struct ppc_stub_hash_entry *stub_entry; |
| 10625 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10626 | struct bfd_link_info *info; |
| 10627 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10628 | bfd_byte *loc; |
| 10629 | bfd_byte *p; | |
| ee75fd95 | 10630 | bfd_vma dest, off; |
| 721956f4 | 10631 | int size; |
| 176a0d42 | 10632 | Elf_Internal_Rela *r; |
| e054468f | 10633 | asection *plt; |
| 5d1634d7 | 10634 | |
| 721956f4 AM |
10635 | /* Massage our args to the form they really have. */ |
| 10636 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10637 | info = in_arg; |
| 5d1634d7 | 10638 | |
| 5d1634d7 | 10639 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10640 | if (htab == NULL) |
| 10641 | return FALSE; | |
| 5d1634d7 | 10642 | |
| 721956f4 | 10643 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10644 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10645 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10646 | |
| 4ce794b7 | 10647 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10648 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10649 | { |
| 721956f4 | 10650 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10651 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10652 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10653 | dest = (stub_entry->target_value |
| 10654 | + stub_entry->target_section->output_offset | |
| 10655 | + stub_entry->target_section->output_section->vma); | |
| 10656 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10657 | off = dest; | |
| 5d1634d7 | 10658 | |
| 721956f4 AM |
10659 | /* And this is where we are coming from. */ |
| 10660 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10661 | + stub_entry->group->stub_sec->output_offset |
| 10662 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10663 | |
| ac2df442 AM |
10664 | size = 4; |
| 10665 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10666 | { |
| 25f53a85 | 10667 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10668 | |
| a7c49797 | 10669 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10670 | { |
| 10671 | htab->stub_error = TRUE; | |
| 10672 | return FALSE; | |
| 10673 | } | |
| e7d1c40c | 10674 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10675 | loc += 4; |
| a7c49797 | 10676 | size = 8; |
| ac2df442 AM |
10677 | if (PPC_HA (r2off) != 0) |
| 10678 | { | |
| e7d1c40c AM |
10679 | bfd_put_32 (htab->params->stub_bfd, |
| 10680 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10681 | loc += 4; |
| a7c49797 AM |
10682 | size += 4; |
| 10683 | } | |
| 10684 | if (PPC_LO (r2off) != 0) | |
| 10685 | { | |
| 10686 | bfd_put_32 (htab->params->stub_bfd, | |
| 10687 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10688 | loc += 4; | |
| 10689 | size += 4; | |
| ac2df442 | 10690 | } |
| ac2df442 | 10691 | off -= size - 4; |
| ad8e1ba5 | 10692 | } |
| e7d1c40c | 10693 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10694 | |
| 5c3dead3 AM |
10695 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10696 | { | |
| bc30df16 AM |
10697 | info->callbacks->einfo |
| 10698 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10699 | stub_entry->root.string); | |
| 5c3dead3 AM |
10700 | htab->stub_error = TRUE; |
| 10701 | return FALSE; | |
| 10702 | } | |
| ee75fd95 AM |
10703 | |
| 10704 | if (info->emitrelocations) | |
| 10705 | { | |
| 6f20ed8a | 10706 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10707 | if (r == NULL) |
| 10708 | return FALSE; | |
| 6f20ed8a | 10709 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10710 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10711 | r->r_addend = dest; | |
| 10712 | if (stub_entry->h != NULL) | |
| 10713 | { | |
| 10714 | struct elf_link_hash_entry **hashes; | |
| 10715 | unsigned long symndx; | |
| 10716 | struct ppc_link_hash_entry *h; | |
| 10717 | ||
| e7d1c40c | 10718 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10719 | if (hashes == NULL) |
| 10720 | { | |
| 10721 | bfd_size_type hsize; | |
| 10722 | ||
| 10723 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10724 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10725 | if (hashes == NULL) |
| 10726 | return FALSE; | |
| e7d1c40c | 10727 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10728 | htab->stub_globals = 1; |
| 10729 | } | |
| 10730 | symndx = htab->stub_globals++; | |
| 10731 | h = stub_entry->h; | |
| 10732 | hashes[symndx] = &h->elf; | |
| 10733 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10734 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10735 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10736 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10737 | /* H is an opd symbol. The addend must be zero. */ | |
| 10738 | r->r_addend = 0; | |
| 10739 | else | |
| 10740 | { | |
| 10741 | off = (h->elf.root.u.def.value | |
| 10742 | + h->elf.root.u.def.section->output_offset | |
| 10743 | + h->elf.root.u.def.section->output_section->vma); | |
| 10744 | r->r_addend -= off; | |
| 10745 | } | |
| 10746 | } | |
| 10747 | } | |
| 721956f4 | 10748 | break; |
| e86ce104 | 10749 | |
| 721956f4 | 10750 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10751 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10752 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10753 | stub_entry->root.string + 9, | |
| b34976b6 | 10754 | FALSE, FALSE); |
| 721956f4 AM |
10755 | if (br_entry == NULL) |
| 10756 | { | |
| 8de848d8 | 10757 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10758 | stub_entry->root.string); |
| b34976b6 AM |
10759 | htab->stub_error = TRUE; |
| 10760 | return FALSE; | |
| 721956f4 AM |
10761 | } |
| 10762 | ||
| 176a0d42 AM |
10763 | dest = (stub_entry->target_value |
| 10764 | + stub_entry->target_section->output_offset | |
| 10765 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10766 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10767 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10768 | |
| 176a0d42 | 10769 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10770 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10771 | |
| f94498ff | 10772 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10773 | { |
| f94498ff | 10774 | br_entry->iter = 0; |
| 84f5d08e | 10775 | |
| f94498ff | 10776 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10777 | { |
| f94498ff AM |
10778 | /* Create a reloc for the branch lookup table entry. */ |
| 10779 | Elf_Internal_Rela rela; | |
| 10780 | bfd_byte *rl; | |
| 10781 | ||
| 10782 | rela.r_offset = (br_entry->offset | |
| 10783 | + htab->brlt->output_offset | |
| 10784 | + htab->brlt->output_section->vma); | |
| 10785 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10786 | rela.r_addend = dest; |
| f94498ff AM |
10787 | |
| 10788 | rl = htab->relbrlt->contents; | |
| 10789 | rl += (htab->relbrlt->reloc_count++ | |
| 10790 | * sizeof (Elf64_External_Rela)); | |
| 10791 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10792 | } | |
| 10793 | else if (info->emitrelocations) | |
| 10794 | { | |
| 176a0d42 AM |
10795 | r = get_relocs (htab->brlt, 1); |
| 10796 | if (r == NULL) | |
| 10797 | return FALSE; | |
| 10798 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10799 | normal reloc processing. Symbols and offsets are not | |
| 10800 | translated from input file to output file form, so | |
| 10801 | set up the offset per the output file. */ | |
| f94498ff AM |
10802 | r->r_offset = (br_entry->offset |
| 10803 | + htab->brlt->output_offset | |
| 10804 | + htab->brlt->output_section->vma); | |
| 10805 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10806 | r->r_addend = dest; |
| 84f5d08e | 10807 | } |
| 84f5d08e | 10808 | } |
| 721956f4 | 10809 | |
| 176a0d42 AM |
10810 | dest = (br_entry->offset |
| 10811 | + htab->brlt->output_offset | |
| 10812 | + htab->brlt->output_section->vma); | |
| 10813 | ||
| 10814 | off = (dest | |
| 4ce794b7 | 10815 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 10816 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 10817 | |
| ad8e1ba5 | 10818 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10819 | { |
| 25f53a85 | 10820 | info->callbacks->einfo |
| bc30df16 | 10821 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10822 | stub_entry->root.string); |
| 5d1634d7 | 10823 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10824 | htab->stub_error = TRUE; |
| 10825 | return FALSE; | |
| 5d1634d7 | 10826 | } |
| 41bd81ab | 10827 | |
| 176a0d42 AM |
10828 | if (info->emitrelocations) |
| 10829 | { | |
| 6f20ed8a | 10830 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
10831 | if (r == NULL) |
| 10832 | return FALSE; | |
| 6f20ed8a | 10833 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
10834 | if (bfd_big_endian (info->output_bfd)) |
| 10835 | r[0].r_offset += 2; | |
| 00f412ee | 10836 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
10837 | r[0].r_offset += 4; |
| 10838 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10839 | r[0].r_addend = dest; | |
| 10840 | if (PPC_HA (off) != 0) | |
| 10841 | { | |
| 10842 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10843 | r[1].r_offset = r[0].r_offset + 4; | |
| 10844 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10845 | r[1].r_addend = r[0].r_addend; | |
| 10846 | } | |
| 10847 | } | |
| 10848 | ||
| 00f412ee | 10849 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 10850 | { |
| 176a0d42 | 10851 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10852 | { |
| 10853 | size = 16; | |
| e7d1c40c | 10854 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10855 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10856 | loc += 4; |
| e7d1c40c | 10857 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10858 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10859 | } |
| 10860 | else | |
| 10861 | { | |
| 10862 | size = 12; | |
| e7d1c40c AM |
10863 | bfd_put_32 (htab->params->stub_bfd, |
| 10864 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 10865 | } |
| ad8e1ba5 AM |
10866 | } |
| 10867 | else | |
| 10868 | { | |
| 25f53a85 | 10869 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 10870 | |
| a7c49797 | 10871 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10872 | { |
| 10873 | htab->stub_error = TRUE; | |
| 10874 | return FALSE; | |
| 10875 | } | |
| ad8e1ba5 | 10876 | |
| e7d1c40c | 10877 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10878 | loc += 4; |
| 00f412ee | 10879 | size = 16; |
| 176a0d42 | 10880 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10881 | { |
| 10882 | size += 4; | |
| e7d1c40c | 10883 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10884 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10885 | loc += 4; |
| e7d1c40c | 10886 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10887 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10888 | } |
| 10889 | else | |
| e7d1c40c | 10890 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10891 | |
| 10892 | if (PPC_HA (r2off) != 0) | |
| 10893 | { | |
| 10894 | size += 4; | |
| 00f412ee | 10895 | loc += 4; |
| e7d1c40c AM |
10896 | bfd_put_32 (htab->params->stub_bfd, |
| 10897 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
10898 | } |
| 10899 | if (PPC_LO (r2off) != 0) | |
| 10900 | { | |
| 10901 | size += 4; | |
| ac2df442 | 10902 | loc += 4; |
| e7d1c40c AM |
10903 | bfd_put_32 (htab->params->stub_bfd, |
| 10904 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 10905 | } |
| ad8e1ba5 AM |
10906 | } |
| 10907 | loc += 4; | |
| e7d1c40c | 10908 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10909 | loc += 4; |
| e7d1c40c | 10910 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 10911 | break; |
| 5d1634d7 | 10912 | |
| 721956f4 | 10913 | case ppc_stub_plt_call: |
| 794e51c0 | 10914 | case ppc_stub_plt_call_r2save: |
| e054468f | 10915 | if (stub_entry->h != NULL |
| b31867b6 AM |
10916 | && stub_entry->h->is_func_descriptor |
| 10917 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10918 | { |
| b31867b6 AM |
10919 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10920 | ||
| 10921 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 10922 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| b31867b6 AM |
10923 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 10924 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10925 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10926 | fh->was_undefined = 0; | |
| c862ae31 AM |
10927 | } |
| 10928 | ||
| 721956f4 | 10929 | /* Now build the stub. */ |
| e054468f | 10930 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10931 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10932 | abort (); |
| 10933 | ||
| 33e44f2e | 10934 | plt = htab->elf.splt; |
| 25f23106 AM |
10935 | if (!htab->elf.dynamic_sections_created |
| 10936 | || stub_entry->h == NULL | |
| 10937 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 10938 | plt = htab->elf.iplt; |
| e054468f AM |
10939 | |
| 10940 | dest += plt->output_offset + plt->output_section->vma; | |
| 10941 | ||
| 10942 | if (stub_entry->h == NULL | |
| 10943 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 10944 | { | |
| 10945 | Elf_Internal_Rela rela; | |
| 10946 | bfd_byte *rl; | |
| 10947 | ||
| 10948 | rela.r_offset = dest; | |
| ee67d69a AM |
10949 | if (htab->opd_abi) |
| 10950 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 10951 | else | |
| 10952 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
10953 | rela.r_addend = (stub_entry->target_value |
| 10954 | + stub_entry->target_section->output_offset | |
| 10955 | + stub_entry->target_section->output_section->vma); | |
| 10956 | ||
| 33e44f2e AM |
10957 | rl = (htab->elf.irelplt->contents |
| 10958 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
10959 | * sizeof (Elf64_External_Rela))); |
| 10960 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
10961 | stub_entry->plt_ent->plt.offset |= 1; |
| 10962 | } | |
| 176a0d42 AM |
10963 | |
| 10964 | off = (dest | |
| e054468f | 10965 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 10966 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 10967 | |
| ad8e1ba5 | 10968 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 10969 | { |
| 25f53a85 | 10970 | info->callbacks->einfo |
| bc30df16 | 10971 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
10972 | stub_entry->h != NULL |
| 10973 | ? stub_entry->h->elf.root.root.string | |
| 10974 | : "<local sym>"); | |
| 721956f4 | 10975 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10976 | htab->stub_error = TRUE; |
| 10977 | return FALSE; | |
| 721956f4 AM |
10978 | } |
| 10979 | ||
| e7d1c40c | 10980 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
10981 | { |
| 10982 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 10983 | ||
| 6f20ed8a AM |
10984 | stub_entry->group->stub_sec->size += pad; |
| 10985 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
10986 | loc += pad; |
| 10987 | } | |
| 10988 | ||
| 176a0d42 AM |
10989 | r = NULL; |
| 10990 | if (info->emitrelocations) | |
| 10991 | { | |
| 6f20ed8a | 10992 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
10993 | ((PPC_HA (off) != 0) |
| 10994 | + (htab->opd_abi | |
| e7d1c40c | 10995 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
10996 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 10997 | : 1))); | |
| 176a0d42 AM |
10998 | if (r == NULL) |
| 10999 | return FALSE; | |
| 6f20ed8a | 11000 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11001 | if (bfd_big_endian (info->output_bfd)) |
| 11002 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11003 | r[0].r_addend = dest; |
| 11004 | } | |
| a7f2871e AM |
11005 | if (stub_entry->h != NULL |
| 11006 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11007 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11008 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11009 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11010 | else |
| 794e51c0 | 11011 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11012 | size = p - loc; |
| 11013 | break; | |
| 11014 | ||
| a4b6fadd AM |
11015 | case ppc_stub_save_res: |
| 11016 | return TRUE; | |
| 11017 | ||
| 721956f4 AM |
11018 | default: |
| 11019 | BFD_FAIL (); | |
| b34976b6 | 11020 | return FALSE; |
| 721956f4 AM |
11021 | } |
| 11022 | ||
| 6f20ed8a | 11023 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11024 | |
| e7d1c40c | 11025 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11026 | { |
| 11027 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11028 | size_t len1, len2; |
| 11029 | char *name; | |
| 11030 | const char *const stub_str[] = { "long_branch", | |
| 11031 | "long_branch_r2off", | |
| 11032 | "plt_branch", | |
| 11033 | "plt_branch_r2off", | |
| 794e51c0 | 11034 | "plt_call", |
| ee75fd95 AM |
11035 | "plt_call" }; |
| 11036 | ||
| 11037 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11038 | len2 = strlen (stub_entry->root.string); | |
| 11039 | name = bfd_malloc (len1 + len2 + 2); | |
| 11040 | if (name == NULL) | |
| 11041 | return FALSE; | |
| 11042 | memcpy (name, stub_entry->root.string, 9); | |
| 11043 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11044 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11045 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11046 | if (h == NULL) |
| 11047 | return FALSE; | |
| 11048 | if (h->root.type == bfd_link_hash_new) | |
| 11049 | { | |
| 11050 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11051 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11052 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11053 | h->ref_regular = 1; |
| 11054 | h->def_regular = 1; | |
| 11055 | h->ref_regular_nonweak = 1; | |
| 11056 | h->forced_local = 1; | |
| 11057 | h->non_elf = 0; | |
| 2ec55de3 | 11058 | h->root.linker_def = 1; |
| 97b639ba AM |
11059 | } |
| 11060 | } | |
| 11061 | ||
| b34976b6 | 11062 | return TRUE; |
| 721956f4 AM |
11063 | } |
| 11064 | ||
| 11065 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11066 | we know stub section sizes, and select plt_branch stubs where | |
| 11067 | long_branch stubs won't do. */ | |
| 11068 | ||
| b34976b6 | 11069 | static bfd_boolean |
| 4ce794b7 | 11070 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11071 | { |
| 11072 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11073 | struct bfd_link_info *info; |
| 721956f4 AM |
11074 | struct ppc_link_hash_table *htab; |
| 11075 | bfd_vma off; | |
| 11076 | int size; | |
| 11077 | ||
| 11078 | /* Massage our args to the form they really have. */ | |
| 11079 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11080 | info = in_arg; |
| 11081 | ||
| 11082 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11083 | if (htab == NULL) |
| 11084 | return FALSE; | |
| 721956f4 | 11085 | |
| a4b6fadd AM |
11086 | if (stub_entry->h != NULL |
| 11087 | && stub_entry->h->save_res | |
| 11088 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11089 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11090 | { | |
| 11091 | /* Don't make stubs to out-of-line register save/restore | |
| 11092 | functions. Instead, emit copies of the functions. */ | |
| 11093 | stub_entry->group->needs_save_res = 1; | |
| 11094 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11095 | return TRUE; | |
| 11096 | } | |
| 11097 | ||
| 794e51c0 AM |
11098 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11099 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11100 | { |
| e054468f AM |
11101 | asection *plt; |
| 11102 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11103 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11104 | abort (); |
| 33e44f2e | 11105 | plt = htab->elf.splt; |
| 25f23106 AM |
11106 | if (!htab->elf.dynamic_sections_created |
| 11107 | || stub_entry->h == NULL | |
| 11108 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11109 | plt = htab->elf.iplt; |
| e054468f AM |
11110 | off += (plt->output_offset |
| 11111 | + plt->output_section->vma | |
| 11112 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11113 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11114 | |
| 794e51c0 | 11115 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11116 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11117 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11118 | if (info->emitrelocations) |
| 11119 | { | |
| 6f20ed8a | 11120 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11121 | += ((PPC_HA (off) != 0) |
| 11122 | + (htab->opd_abi | |
| e7d1c40c | 11123 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11124 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11125 | : 1)); | |
| 6f20ed8a | 11126 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11127 | } |
| 721956f4 AM |
11128 | } |
| 11129 | else | |
| 11130 | { | |
| ad8e1ba5 AM |
11131 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11132 | variants. */ | |
| ac2df442 | 11133 | bfd_vma r2off = 0; |
| 6911b7dc | 11134 | bfd_vma local_off = 0; |
| ac2df442 | 11135 | |
| 721956f4 AM |
11136 | off = (stub_entry->target_value |
| 11137 | + stub_entry->target_section->output_offset | |
| 11138 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11139 | off -= (stub_entry->group->stub_sec->size |
| 11140 | + stub_entry->group->stub_sec->output_offset | |
| 11141 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11142 | |
| ad8e1ba5 AM |
11143 | /* Reset the stub type from the plt variant in case we now |
| 11144 | can reach with a shorter stub. */ | |
| 11145 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11146 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11147 | ||
| 11148 | size = 4; | |
| 11149 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11150 | { | |
| 25f53a85 | 11151 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11152 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11153 | { |
| 11154 | htab->stub_error = TRUE; | |
| 11155 | return FALSE; | |
| 11156 | } | |
| a7c49797 | 11157 | size = 8; |
| ac2df442 | 11158 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11159 | size += 4; |
| 11160 | if (PPC_LO (r2off) != 0) | |
| 11161 | size += 4; | |
| ac2df442 | 11162 | off -= size - 4; |
| ad8e1ba5 AM |
11163 | } |
| 11164 | ||
| 6911b7dc AM |
11165 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11166 | ||
| b9e5796b AM |
11167 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11168 | Do the same for -R objects without function descriptors. */ | |
| 11169 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11170 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11171 | && r2off == 0 |
| 11172 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11173 | { |
| 11174 | struct ppc_branch_hash_entry *br_entry; | |
| 11175 | ||
| 11176 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11177 | stub_entry->root.string + 9, | |
| b34976b6 | 11178 | TRUE, FALSE); |
| 721956f4 AM |
11179 | if (br_entry == NULL) |
| 11180 | { | |
| 8de848d8 | 11181 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11182 | stub_entry->root.string); |
| b34976b6 AM |
11183 | htab->stub_error = TRUE; |
| 11184 | return FALSE; | |
| 721956f4 AM |
11185 | } |
| 11186 | ||
| 11187 | if (br_entry->iter != htab->stub_iteration) | |
| 11188 | { | |
| 11189 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11190 | br_entry->offset = htab->brlt->size; |
| 11191 | htab->brlt->size += 8; | |
| 63bc6f6c | 11192 | |
| ee75fd95 | 11193 | if (htab->relbrlt != NULL) |
| eea6121a | 11194 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11195 | else if (info->emitrelocations) |
| 11196 | { | |
| 11197 | htab->brlt->reloc_count += 1; | |
| 11198 | htab->brlt->flags |= SEC_RELOC; | |
| 11199 | } | |
| 721956f4 | 11200 | } |
| ad8e1ba5 AM |
11201 | |
| 11202 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11203 | off = (br_entry->offset |
| 11204 | + htab->brlt->output_offset | |
| 11205 | + htab->brlt->output_section->vma | |
| 11206 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11207 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11208 | |
| 176a0d42 AM |
11209 | if (info->emitrelocations) |
| 11210 | { | |
| 6f20ed8a AM |
11211 | stub_entry->group->stub_sec->reloc_count |
| 11212 | += 1 + (PPC_HA (off) != 0); | |
| 11213 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11214 | } |
| 11215 | ||
| 00f412ee | 11216 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11217 | { |
| 11218 | size = 12; | |
| 176a0d42 | 11219 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11220 | size = 16; |
| 11221 | } | |
| 11222 | else | |
| 11223 | { | |
| 00f412ee | 11224 | size = 16; |
| 176a0d42 | 11225 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11226 | size += 4; |
| 11227 | ||
| 11228 | if (PPC_HA (r2off) != 0) | |
| 11229 | size += 4; | |
| 00f412ee AM |
11230 | if (PPC_LO (r2off) != 0) |
| 11231 | size += 4; | |
| ac2df442 | 11232 | } |
| 721956f4 | 11233 | } |
| 84f5d08e AM |
11234 | else if (info->emitrelocations) |
| 11235 | { | |
| 6f20ed8a AM |
11236 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11237 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11238 | } |
| 721956f4 AM |
11239 | } |
| 11240 | ||
| 6f20ed8a | 11241 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11242 | return TRUE; |
| 721956f4 AM |
11243 | } |
| 11244 | ||
| 11245 | /* Set up various things so that we can make a list of input sections | |
| 11246 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11247 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11248 | |
| 11249 | int | |
| e7d1c40c | 11250 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11251 | { |
| 6f20ed8a | 11252 | unsigned int id; |
| 721956f4 AM |
11253 | bfd_size_type amt; |
| 11254 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11255 | ||
| 4dfe6ac6 NC |
11256 | if (htab == NULL) |
| 11257 | return -1; | |
| 4c52953f | 11258 | |
| 6f20ed8a AM |
11259 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11260 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11261 | htab->sec_info = bfd_zmalloc (amt); | |
| 11262 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11263 | return -1; |
| 11264 | ||
| 3d6f9012 AM |
11265 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11266 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11267 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11268 | |
| 721956f4 AM |
11269 | return 1; |
| 11270 | } | |
| 11271 | ||
| 927be08e AM |
11272 | /* Set up for first pass at multitoc partitioning. */ |
| 11273 | ||
| 11274 | void | |
| 11275 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11276 | { | |
| 11277 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11278 | ||
| 1c865ab2 | 11279 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11280 | htab->toc_bfd = NULL; |
| 11281 | htab->toc_first_sec = NULL; | |
| 11282 | } | |
| 11283 | ||
| e717da7e AM |
11284 | /* The linker repeatedly calls this function for each TOC input section |
| 11285 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11286 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11287 | |
| 927be08e | 11288 | bfd_boolean |
| 4ce794b7 | 11289 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11290 | { |
| 11291 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11292 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11293 | |
| 4dfe6ac6 NC |
11294 | if (htab == NULL) |
| 11295 | return FALSE; | |
| 11296 | ||
| 927be08e | 11297 | if (!htab->second_toc_pass) |
| 4c52953f | 11298 | { |
| 927be08e | 11299 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11300 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11301 | ||
| 11302 | if (new_bfd) | |
| bf102f86 AM |
11303 | { |
| 11304 | htab->toc_bfd = isec->owner; | |
| 11305 | htab->toc_first_sec = isec; | |
| 11306 | } | |
| 927be08e | 11307 | |
| bf102f86 AM |
11308 | addr = isec->output_offset + isec->output_section->vma; |
| 11309 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11310 | limit = 0x80008000; |
| 11311 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11312 | limit = 0x10000; | |
| 11313 | if (off + isec->size > limit) | |
| bf102f86 AM |
11314 | { |
| 11315 | addr = (htab->toc_first_sec->output_offset | |
| 11316 | + htab->toc_first_sec->output_section->vma); | |
| 11317 | htab->toc_curr = addr; | |
| a27e685f | 11318 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11319 | } |
| 99877b66 | 11320 | |
| 927be08e AM |
11321 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11322 | for the input section to be the offset relative to the | |
| 11323 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11324 | offset allows us to move the toc as a whole without | |
| 11325 | recalculating input elf_gp. */ | |
| 11326 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11327 | off += TOC_BASE_OFF; | |
| 11328 | ||
| 11329 | /* Die if someone uses a linker script that doesn't keep input | |
| 11330 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11331 | if (new_bfd |
| 11332 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11333 | && elf_gp (isec->owner) != off) |
| 11334 | return FALSE; | |
| 11335 | ||
| 11336 | elf_gp (isec->owner) = off; | |
| 11337 | return TRUE; | |
| 4c52953f | 11338 | } |
| 927be08e AM |
11339 | |
| 11340 | /* During the second pass toc_first_sec points to the start of | |
| 11341 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11342 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11343 | if (htab->toc_bfd == isec->owner) | |
| 11344 | return TRUE; | |
| 11345 | htab->toc_bfd = isec->owner; | |
| 11346 | ||
| 11347 | if (htab->toc_first_sec == NULL | |
| 11348 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11349 | { | |
| 11350 | htab->toc_curr = elf_gp (isec->owner); | |
| 11351 | htab->toc_first_sec = isec; | |
| 11352 | } | |
| 11353 | addr = (htab->toc_first_sec->output_offset | |
| 11354 | + htab->toc_first_sec->output_section->vma); | |
| 11355 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11356 | elf_gp (isec->owner) = off; | |
| 11357 | ||
| 11358 | return TRUE; | |
| ad8e1ba5 AM |
11359 | } |
| 11360 | ||
| 927be08e AM |
11361 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11362 | symbol H. */ | |
| 11363 | ||
| 11364 | static bfd_boolean | |
| 11365 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11366 | { | |
| 11367 | if (h->root.type == bfd_link_hash_indirect) | |
| 11368 | return TRUE; | |
| 11369 | ||
| 927be08e AM |
11370 | merge_got_entries (&h->got.glist); |
| 11371 | ||
| 11372 | return TRUE; | |
| 11373 | } | |
| 11374 | ||
| 11375 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11376 | symbol H. */ | |
| 11377 | ||
| 11378 | static bfd_boolean | |
| 11379 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11380 | { | |
| 11381 | struct got_entry *gent; | |
| 11382 | ||
| 11383 | if (h->root.type == bfd_link_hash_indirect) | |
| 11384 | return TRUE; | |
| 11385 | ||
| 927be08e AM |
11386 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11387 | if (!gent->is_indirect) | |
| 11388 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11389 | return TRUE; | |
| 11390 | } | |
| 11391 | ||
| 11392 | /* Called on the first multitoc pass after the last call to | |
| 11393 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11394 | entries. */ | |
| 11395 | ||
| 11396 | bfd_boolean | |
| 11397 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11398 | { |
| 11399 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11400 | struct bfd *ibfd, *ibfd2; |
| 11401 | bfd_boolean done_something; | |
| 11402 | ||
| 11403 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11404 | |
| 7865406b AM |
11405 | if (!htab->do_multi_toc) |
| 11406 | return FALSE; | |
| 11407 | ||
| d0fae19d | 11408 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11409 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11410 | ||
| 11411 | /* And tlsld_got. */ | |
| c72f2fb2 | 11412 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11413 | { |
| 11414 | struct got_entry *ent, *ent2; | |
| 11415 | ||
| 11416 | if (!is_ppc64_elf (ibfd)) | |
| 11417 | continue; | |
| 11418 | ||
| 11419 | ent = ppc64_tlsld_got (ibfd); | |
| 11420 | if (!ent->is_indirect | |
| 11421 | && ent->got.offset != (bfd_vma) -1) | |
| 11422 | { | |
| c72f2fb2 | 11423 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11424 | { |
| 11425 | if (!is_ppc64_elf (ibfd2)) | |
| 11426 | continue; | |
| 11427 | ||
| 11428 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11429 | if (!ent2->is_indirect | |
| 11430 | && ent2->got.offset != (bfd_vma) -1 | |
| 11431 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11432 | { | |
| 11433 | ent2->is_indirect = TRUE; | |
| 11434 | ent2->got.ent = ent; | |
| 11435 | } | |
| 11436 | } | |
| 11437 | } | |
| 11438 | } | |
| 11439 | ||
| 11440 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11441 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11442 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11443 | htab->got_reli_size = 0; |
| 11444 | ||
| c72f2fb2 | 11445 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11446 | { |
| 11447 | asection *got, *relgot; | |
| 11448 | ||
| 11449 | if (!is_ppc64_elf (ibfd)) | |
| 11450 | continue; | |
| 11451 | ||
| 11452 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11453 | if (got != NULL) | |
| 11454 | { | |
| 11455 | got->rawsize = got->size; | |
| 11456 | got->size = 0; | |
| 11457 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11458 | relgot->rawsize = relgot->size; | |
| 11459 | relgot->size = 0; | |
| 11460 | } | |
| 11461 | } | |
| 11462 | ||
| 11463 | /* Now reallocate the got, local syms first. We don't need to | |
| 11464 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11465 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11466 | { |
| 11467 | struct got_entry **lgot_ents; | |
| 11468 | struct got_entry **end_lgot_ents; | |
| 11469 | struct plt_entry **local_plt; | |
| 11470 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11471 | unsigned char *lgot_masks; |
| 927be08e AM |
11472 | bfd_size_type locsymcount; |
| 11473 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11474 | asection *s; |
| 927be08e AM |
11475 | |
| 11476 | if (!is_ppc64_elf (ibfd)) | |
| 11477 | continue; | |
| 11478 | ||
| 11479 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11480 | if (!lgot_ents) | |
| 11481 | continue; | |
| 11482 | ||
| 11483 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11484 | locsymcount = symtab_hdr->sh_info; | |
| 11485 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11486 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11487 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11488 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11489 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11490 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11491 | { | |
| 11492 | struct got_entry *ent; | |
| 11493 | ||
| 11494 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11495 | { |
| 19e08130 AM |
11496 | unsigned int ent_size = 8; |
| 11497 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11498 | ||
| d0fae19d AM |
11499 | ent->got.offset = s->size; |
| 11500 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11501 | { |
| 19e08130 AM |
11502 | ent_size *= 2; |
| 11503 | rel_size *= 2; | |
| 11504 | } | |
| 11505 | s->size += ent_size; | |
| 11506 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11507 | { | |
| 33e44f2e | 11508 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11509 | htab->got_reli_size += rel_size; |
| 11510 | } | |
| 0e1862bb | 11511 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11512 | { |
| 11513 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11514 | srel->size += rel_size; | |
| d0fae19d AM |
11515 | } |
| 11516 | } | |
| 927be08e AM |
11517 | } |
| 11518 | } | |
| 11519 | ||
| 11520 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11521 | ||
| c72f2fb2 | 11522 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11523 | { |
| 11524 | struct got_entry *ent; | |
| 11525 | ||
| 11526 | if (!is_ppc64_elf (ibfd)) | |
| 11527 | continue; | |
| 11528 | ||
| 11529 | ent = ppc64_tlsld_got (ibfd); | |
| 11530 | if (!ent->is_indirect | |
| 11531 | && ent->got.offset != (bfd_vma) -1) | |
| 11532 | { | |
| 11533 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11534 | ent->got.offset = s->size; | |
| 11535 | s->size += 16; | |
| 0e1862bb | 11536 | if (bfd_link_pic (info)) |
| 927be08e AM |
11537 | { |
| 11538 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11539 | srel->size += sizeof (Elf64_External_Rela); | |
| 11540 | } | |
| 11541 | } | |
| 11542 | } | |
| 11543 | ||
| 33e44f2e | 11544 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11545 | if (!done_something) |
| c72f2fb2 | 11546 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11547 | { |
| 11548 | asection *got; | |
| 11549 | ||
| 11550 | if (!is_ppc64_elf (ibfd)) | |
| 11551 | continue; | |
| 11552 | ||
| 11553 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11554 | if (got != NULL) | |
| 11555 | { | |
| 11556 | done_something = got->rawsize != got->size; | |
| 11557 | if (done_something) | |
| 11558 | break; | |
| 11559 | } | |
| 11560 | } | |
| 11561 | ||
| 11562 | if (done_something) | |
| e7d1c40c | 11563 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11564 | |
| 11565 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11566 | on input sections. */ | |
| 11567 | htab->toc_bfd = NULL; | |
| 11568 | htab->toc_first_sec = NULL; | |
| 11569 | htab->second_toc_pass = TRUE; | |
| 11570 | return done_something; | |
| 11571 | } | |
| 11572 | ||
| 11573 | /* Called after second pass of multitoc partitioning. */ | |
| 11574 | ||
| 11575 | void | |
| 11576 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11577 | { | |
| 11578 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11579 | ||
| 11580 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11581 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11582 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11583 | } |
| 11584 | ||
| 9b5ecbd0 AM |
11585 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11586 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11587 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11588 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11589 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11590 | for a stub was detected. If called from the top level, a return of | |
| 11591 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11592 | |
| 11593 | static int | |
| 4ce794b7 | 11594 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11595 | { |
| 9b5ecbd0 | 11596 | int ret; |
| 70cc837d AM |
11597 | |
| 11598 | /* Mark this section as checked. */ | |
| 11599 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11600 | |
| 772119ce AM |
11601 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11602 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11603 | return 0; | |
| 11604 | ||
| eea6121a | 11605 | if (isec->size == 0) |
| 082c50f8 AM |
11606 | return 0; |
| 11607 | ||
| 4c52953f AM |
11608 | if (isec->output_section == NULL) |
| 11609 | return 0; | |
| 11610 | ||
| 4c52953f | 11611 | ret = 0; |
| 70cc837d | 11612 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11613 | { |
| 70cc837d AM |
11614 | Elf_Internal_Rela *relstart, *rel; |
| 11615 | Elf_Internal_Sym *local_syms; | |
| 11616 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11617 | |
| 70cc837d AM |
11618 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11619 | info->keep_memory); | |
| 11620 | if (relstart == NULL) | |
| 11621 | return -1; | |
| 90aecf7a | 11622 | |
| 70cc837d AM |
11623 | /* Look for branches to outside of this section. */ |
| 11624 | local_syms = NULL; | |
| 11625 | htab = ppc_hash_table (info); | |
| 11626 | if (htab == NULL) | |
| 11627 | return -1; | |
| 4c52953f | 11628 | |
| 70cc837d | 11629 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11630 | { |
| 70cc837d AM |
11631 | enum elf_ppc64_reloc_type r_type; |
| 11632 | unsigned long r_symndx; | |
| 11633 | struct elf_link_hash_entry *h; | |
| 11634 | struct ppc_link_hash_entry *eh; | |
| 11635 | Elf_Internal_Sym *sym; | |
| 11636 | asection *sym_sec; | |
| 11637 | struct _opd_sec_data *opd; | |
| 11638 | bfd_vma sym_value; | |
| 11639 | bfd_vma dest; | |
| 11640 | ||
| 11641 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11642 | if (r_type != R_PPC64_REL24 | |
| 11643 | && r_type != R_PPC64_REL14 | |
| 11644 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11645 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11646 | continue; | |
| 4c52953f | 11647 | |
| 70cc837d AM |
11648 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11649 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11650 | isec->owner)) | |
| 4c52953f | 11651 | { |
| 70cc837d AM |
11652 | ret = -1; |
| 11653 | break; | |
| 11654 | } | |
| 4c52953f | 11655 | |
| 70cc837d AM |
11656 | /* Calls to dynamic lib functions go through a plt call stub |
| 11657 | that uses r2. */ | |
| 11658 | eh = (struct ppc_link_hash_entry *) h; | |
| 11659 | if (eh != NULL | |
| 11660 | && (eh->elf.plt.plist != NULL | |
| 11661 | || (eh->oh != NULL | |
| 11662 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11663 | { | |
| 11664 | ret = 1; | |
| 11665 | break; | |
| 4c52953f AM |
11666 | } |
| 11667 | ||
| 70cc837d AM |
11668 | if (sym_sec == NULL) |
| 11669 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11670 | continue; |
| 4c52953f | 11671 | |
| 70cc837d AM |
11672 | /* Assume branches to other sections not included in the |
| 11673 | link need stubs too, to cover -R and absolute syms. */ | |
| 11674 | if (sym_sec->output_section == NULL) | |
| 11675 | { | |
| 11676 | ret = 1; | |
| 11677 | break; | |
| 11678 | } | |
| 4c52953f | 11679 | |
| 70cc837d AM |
11680 | if (h == NULL) |
| 11681 | sym_value = sym->st_value; | |
| 11682 | else | |
| 11683 | { | |
| 11684 | if (h->root.type != bfd_link_hash_defined | |
| 11685 | && h->root.type != bfd_link_hash_defweak) | |
| 11686 | abort (); | |
| 11687 | sym_value = h->root.u.def.value; | |
| 11688 | } | |
| 11689 | sym_value += rel->r_addend; | |
| 4c52953f | 11690 | |
| 70cc837d AM |
11691 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11692 | opd = get_opd_info (sym_sec); | |
| 11693 | if (opd != NULL) | |
| 11694 | { | |
| 11695 | if (h == NULL && opd->adjust != NULL) | |
| 11696 | { | |
| 11697 | long adjust; | |
| 4c52953f | 11698 | |
| 92a9c616 | 11699 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11700 | if (adjust == -1) |
| 11701 | /* Assume deleted functions won't ever be called. */ | |
| 11702 | continue; | |
| 11703 | sym_value += adjust; | |
| 11704 | } | |
| 4c52953f | 11705 | |
| aef36ac1 AM |
11706 | dest = opd_entry_value (sym_sec, sym_value, |
| 11707 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11708 | if (dest == (bfd_vma) -1) |
| 11709 | continue; | |
| 11710 | } | |
| 11711 | else | |
| 11712 | dest = (sym_value | |
| 11713 | + sym_sec->output_offset | |
| 11714 | + sym_sec->output_section->vma); | |
| 4c52953f | 11715 | |
| 70cc837d AM |
11716 | /* Ignore branch to self. */ |
| 11717 | if (sym_sec == isec) | |
| 11718 | continue; | |
| 4c52953f | 11719 | |
| 70cc837d AM |
11720 | /* If the called function uses the toc, we need a stub. */ |
| 11721 | if (sym_sec->has_toc_reloc | |
| 11722 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11723 | { |
| 70cc837d | 11724 | ret = 1; |
| 4c52953f AM |
11725 | break; |
| 11726 | } | |
| 70cc837d AM |
11727 | |
| 11728 | /* Assume any branch that needs a long branch stub might in fact | |
| 11729 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11730 | else if (dest - (isec->output_offset | |
| 11731 | + isec->output_section->vma | |
| 6911b7dc AM |
11732 | + rel->r_offset) + (1 << 25) |
| 11733 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11734 | ? h->other | |
| 11735 | : sym->st_other)) | |
| 4c52953f | 11736 | { |
| 70cc837d AM |
11737 | ret = 1; |
| 11738 | break; | |
| 11739 | } | |
| 11740 | ||
| 11741 | /* If calling back to a section in the process of being | |
| 11742 | tested, we can't say for sure that no toc adjusting stubs | |
| 11743 | are needed, so don't return zero. */ | |
| 11744 | else if (sym_sec->call_check_in_progress) | |
| 11745 | ret = 2; | |
| 11746 | ||
| 11747 | /* Branches to another section that itself doesn't have any TOC | |
| 11748 | references are OK. Recursively call ourselves to check. */ | |
| 11749 | else if (!sym_sec->call_check_done) | |
| 11750 | { | |
| 11751 | int recur; | |
| 11752 | ||
| 11753 | /* Mark current section as indeterminate, so that other | |
| 11754 | sections that call back to current won't be marked as | |
| 11755 | known. */ | |
| 11756 | isec->call_check_in_progress = 1; | |
| 11757 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11758 | isec->call_check_in_progress = 0; | |
| 11759 | ||
| 4c52953f AM |
11760 | if (recur != 0) |
| 11761 | { | |
| 70cc837d AM |
11762 | ret = recur; |
| 11763 | if (recur != 2) | |
| 11764 | break; | |
| 4c52953f AM |
11765 | } |
| 11766 | } | |
| 4c52953f | 11767 | } |
| 70cc837d AM |
11768 | |
| 11769 | if (local_syms != NULL | |
| 11770 | && (elf_symtab_hdr (isec->owner).contents | |
| 11771 | != (unsigned char *) local_syms)) | |
| 11772 | free (local_syms); | |
| 11773 | if (elf_section_data (isec)->relocs != relstart) | |
| 11774 | free (relstart); | |
| 9b5ecbd0 AM |
11775 | } |
| 11776 | ||
| 70cc837d AM |
11777 | if ((ret & 1) == 0 |
| 11778 | && isec->map_head.s != NULL | |
| 11779 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11780 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11781 | { | |
| 11782 | if (isec->map_head.s->has_toc_reloc | |
| 11783 | || isec->map_head.s->makes_toc_func_call) | |
| 11784 | ret = 1; | |
| 11785 | else if (!isec->map_head.s->call_check_done) | |
| 11786 | { | |
| 11787 | int recur; | |
| 11788 | isec->call_check_in_progress = 1; | |
| 11789 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11790 | isec->call_check_in_progress = 0; | |
| 11791 | if (recur != 0) | |
| 11792 | ret = recur; | |
| 11793 | } | |
| 11794 | } | |
| 11795 | ||
| 11796 | if (ret == 1) | |
| 11797 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11798 | |
| 9b5ecbd0 AM |
11799 | return ret; |
| 11800 | } | |
| 11801 | ||
| 721956f4 AM |
11802 | /* The linker repeatedly calls this function for each input section, |
| 11803 | in the order that input sections are linked into output sections. | |
| 11804 | Build lists of input sections to determine groupings between which | |
| 11805 | we may insert linker stubs. */ | |
| 11806 | ||
| 9b5ecbd0 | 11807 | bfd_boolean |
| 4ce794b7 | 11808 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11809 | { |
| 11810 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11811 | ||
| 4dfe6ac6 NC |
11812 | if (htab == NULL) |
| 11813 | return FALSE; | |
| 11814 | ||
| 734b6cf9 | 11815 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 11816 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 11817 | { |
| 3d6f9012 AM |
11818 | /* This happens to make the list in reverse order, |
| 11819 | which is what we want. */ | |
| 6f20ed8a AM |
11820 | htab->sec_info[isec->id].u.list |
| 11821 | = htab->sec_info[isec->output_section->id].u.list; | |
| 11822 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 11823 | } |
| ad8e1ba5 | 11824 | |
| 4c52953f | 11825 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11826 | { |
| 8b974ba3 AM |
11827 | /* Analyse sections that aren't already flagged as needing a |
| 11828 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 11829 | .fixup contains branches, but only back to the function that | |
| 11830 | hit an exception. */ | |
| 11831 | if (!(isec->has_toc_reloc | |
| 11832 | || (isec->flags & SEC_CODE) == 0 | |
| 11833 | || strcmp (isec->name, ".fixup") == 0 | |
| 11834 | || isec->call_check_done)) | |
| 11835 | { | |
| 11836 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 11837 | return FALSE; |
| 8b974ba3 AM |
11838 | } |
| 11839 | /* Make all sections use the TOC assigned for this object file. | |
| 11840 | This will be wrong for pasted sections; We fix that in | |
| 11841 | check_pasted_section(). */ | |
| 11842 | if (elf_gp (isec->owner) != 0) | |
| 11843 | htab->toc_curr = elf_gp (isec->owner); | |
| 11844 | } | |
| 11845 | ||
| 6f20ed8a | 11846 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11847 | return TRUE; |
| 721956f4 AM |
11848 | } |
| 11849 | ||
| 70cc837d AM |
11850 | /* Check that all .init and .fini sections use the same toc, if they |
| 11851 | have toc relocs. */ | |
| 11852 | ||
| 11853 | static bfd_boolean | |
| 11854 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11855 | { | |
| 11856 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11857 | ||
| 11858 | if (o != NULL) | |
| 11859 | { | |
| 11860 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11861 | bfd_vma toc_off = 0; | |
| 11862 | asection *i; | |
| 11863 | ||
| 11864 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11865 | if (i->has_toc_reloc) | |
| 11866 | { | |
| 11867 | if (toc_off == 0) | |
| 6f20ed8a AM |
11868 | toc_off = htab->sec_info[i->id].toc_off; |
| 11869 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
11870 | return FALSE; |
| 11871 | } | |
| 6683a28d AM |
11872 | |
| 11873 | if (toc_off == 0) | |
| 11874 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11875 | if (i->makes_toc_func_call) | |
| 11876 | { | |
| 6f20ed8a | 11877 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
11878 | break; |
| 11879 | } | |
| 11880 | ||
| 70cc837d AM |
11881 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11882 | if (toc_off != 0) | |
| 11883 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 11884 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
11885 | } |
| 11886 | return TRUE; | |
| 11887 | } | |
| 11888 | ||
| 11889 | bfd_boolean | |
| 11890 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11891 | { | |
| 11892 | return (check_pasted_section (info, ".init") | |
| 11893 | & check_pasted_section (info, ".fini")); | |
| 11894 | } | |
| 11895 | ||
| 721956f4 AM |
11896 | /* See whether we can group stub sections together. Grouping stub |
| 11897 | sections may result in fewer stubs. More importantly, we need to | |
| 11898 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11899 | .fini output sections respectively, because glibc splits the | |
| 11900 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11901 | the middle of a function is not a good idea. */ | |
| 11902 | ||
| 6f20ed8a AM |
11903 | static bfd_boolean |
| 11904 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
11905 | bfd_size_type stub_group_size, |
| 11906 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11907 | { |
| 6f20ed8a AM |
11908 | struct ppc_link_hash_table *htab; |
| 11909 | asection *osec; | |
| 7c8fe5c4 AM |
11910 | bfd_size_type stub14_group_size; |
| 11911 | bfd_boolean suppress_size_errors; | |
| 11912 | ||
| 6f20ed8a AM |
11913 | htab = ppc_hash_table (info); |
| 11914 | if (htab == NULL) | |
| 11915 | return FALSE; | |
| 11916 | ||
| 7c8fe5c4 | 11917 | suppress_size_errors = FALSE; |
| 0cfb0717 | 11918 | stub14_group_size = stub_group_size >> 10; |
| 7c8fe5c4 AM |
11919 | if (stub_group_size == 1) |
| 11920 | { | |
| 11921 | /* Default values. */ | |
| 11922 | if (stubs_always_before_branch) | |
| 11923 | { | |
| 11924 | stub_group_size = 0x1e00000; | |
| 11925 | stub14_group_size = 0x7800; | |
| 11926 | } | |
| 11927 | else | |
| 11928 | { | |
| 11929 | stub_group_size = 0x1c00000; | |
| 11930 | stub14_group_size = 0x7000; | |
| 11931 | } | |
| 11932 | suppress_size_errors = TRUE; | |
| 11933 | } | |
| 11934 | ||
| 6f20ed8a | 11935 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 11936 | { |
| 6f20ed8a AM |
11937 | asection *tail; |
| 11938 | ||
| 11939 | if (osec->id >= htab->sec_info_arr_size) | |
| 11940 | continue; | |
| 11941 | ||
| 11942 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 11943 | while (tail != NULL) |
| 721956f4 | 11944 | { |
| 734b6cf9 AM |
11945 | asection *curr; |
| 11946 | asection *prev; | |
| 11947 | bfd_size_type total; | |
| 11948 | bfd_boolean big_sec; | |
| 11949 | bfd_vma curr_toc; | |
| 6f20ed8a | 11950 | struct map_stub *group; |
| 734b6cf9 AM |
11951 | |
| 11952 | curr = tail; | |
| eea6121a | 11953 | total = tail->size; |
| 6bee8834 AM |
11954 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 11955 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
11956 | ? stub14_group_size : stub_group_size); |
| 11957 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
11958 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 11959 | tail->owner, tail); | |
| 6f20ed8a | 11960 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 11961 | |
| 6f20ed8a | 11962 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 11963 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
11964 | < (ppc64_elf_section_data (prev) != NULL |
| 11965 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11966 | ? stub14_group_size : stub_group_size)) |
| 6f20ed8a | 11967 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
11968 | curr = prev; |
| 11969 | ||
| 11970 | /* OK, the size from the start of CURR to the end is less | |
| 11971 | than stub_group_size and thus can be handled by one stub | |
| 11972 | section. (or the tail section is itself larger than | |
| 11973 | stub_group_size, in which case we may be toast.) We | |
| 11974 | should really be keeping track of the total size of stubs | |
| 11975 | added here, as stubs contribute to the final output | |
| 11976 | section size. That's a little tricky, and this way will | |
| 11977 | only break if stubs added make the total size more than | |
| 11978 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 11979 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
11980 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 11981 | if (group == NULL) | |
| 11982 | return FALSE; | |
| 11983 | group->link_sec = curr; | |
| 11984 | group->stub_sec = NULL; | |
| a4b6fadd AM |
11985 | group->needs_save_res = 0; |
| 11986 | group->next = htab->group; | |
| 11987 | htab->group = group; | |
| 734b6cf9 | 11988 | do |
| 721956f4 | 11989 | { |
| 6f20ed8a | 11990 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 11991 | /* Set up this stub group. */ |
| 6f20ed8a | 11992 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 11993 | } |
| 734b6cf9 AM |
11994 | while (tail != curr && (tail = prev) != NULL); |
| 11995 | ||
| 11996 | /* But wait, there's more! Input sections up to stub_group_size | |
| 11997 | bytes before the stub section can be handled by it too. | |
| 11998 | Don't do this if we have a really large section after the | |
| 11999 | stubs, as adding more stubs increases the chance that | |
| 12000 | branches may not reach into the stub section. */ | |
| 12001 | if (!stubs_always_before_branch && !big_sec) | |
| 12002 | { | |
| 12003 | total = 0; | |
| 12004 | while (prev != NULL | |
| 12005 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12006 | < (ppc64_elf_section_data (prev) != NULL |
| 12007 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 12008 | ? stub14_group_size : stub_group_size)) |
| 6f20ed8a | 12009 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12010 | { |
| 12011 | tail = prev; | |
| 6f20ed8a AM |
12012 | prev = htab->sec_info[tail->id].u.list; |
| 12013 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12014 | } |
| 12015 | } | |
| 12016 | tail = prev; | |
| 721956f4 AM |
12017 | } |
| 12018 | } | |
| 6f20ed8a | 12019 | return TRUE; |
| 721956f4 AM |
12020 | } |
| 12021 | ||
| 58d180e8 AM |
12022 | static const unsigned char glink_eh_frame_cie[] = |
| 12023 | { | |
| 12024 | 0, 0, 0, 16, /* length. */ | |
| 12025 | 0, 0, 0, 0, /* id. */ | |
| 12026 | 1, /* CIE version. */ | |
| 12027 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12028 | 4, /* Code alignment. */ | |
| 12029 | 0x78, /* Data alignment. */ | |
| 12030 | 65, /* RA reg. */ | |
| 12031 | 1, /* Augmentation size. */ | |
| 12032 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
12033 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 12034 | 0, 0, 0, 0 | |
| 58d180e8 AM |
12035 | }; |
| 12036 | ||
| d969d15f AM |
12037 | /* Stripping output sections is normally done before dynamic section |
| 12038 | symbols have been allocated. This function is called later, and | |
| 12039 | handles cases like htab->brlt which is mapped to its own output | |
| 12040 | section. */ | |
| 12041 | ||
| 12042 | static void | |
| 12043 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12044 | { | |
| 12045 | if (isec->size == 0 | |
| 12046 | && isec->output_section->size == 0 | |
| 53d8967a | 12047 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12048 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12049 | isec->output_section) | |
| 12050 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12051 | { | |
| 12052 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12053 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12054 | info->output_bfd->section_count--; | |
| 12055 | } | |
| 12056 | } | |
| 12057 | ||
| 721956f4 AM |
12058 | /* Determine and set the size of the stub section for a final link. |
| 12059 | ||
| 12060 | The basic idea here is to examine all the relocations looking for | |
| 12061 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12062 | instruction. */ | |
| 12063 | ||
| b34976b6 | 12064 | bfd_boolean |
| e7d1c40c | 12065 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12066 | { |
| 12067 | bfd_size_type stub_group_size; | |
| b34976b6 | 12068 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12069 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12070 | ||
| 4dfe6ac6 NC |
12071 | if (htab == NULL) |
| 12072 | return FALSE; | |
| 12073 | ||
| 0e1862bb | 12074 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12075 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12076 | if (!htab->opd_abi) |
| e7d1c40c AM |
12077 | htab->params->plt_thread_safe = 0; |
| 12078 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12079 | { |
| e2458743 | 12080 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12081 | { |
| 12082 | "pthread_create", | |
| 12083 | /* libstdc++ */ | |
| 12084 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12085 | /* librt */ | |
| 12086 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12087 | "mq_notify", "create_timer", | |
| 12088 | /* libanl */ | |
| 12089 | "getaddrinfo_a", | |
| 12090 | /* libgomp */ | |
| 2300b5a1 | 12091 | "GOMP_parallel", |
| 794e51c0 | 12092 | "GOMP_parallel_start", |
| 2300b5a1 | 12093 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12094 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12095 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12096 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12097 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12098 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12099 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12100 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12101 | "GOMP_parallel_sections", |
| 68ffbac6 | 12102 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12103 | /* libgo */ |
| 12104 | "__go_go", | |
| 794e51c0 AM |
12105 | }; |
| 12106 | unsigned i; | |
| 12107 | ||
| a4b6fadd | 12108 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12109 | { |
| 12110 | struct elf_link_hash_entry *h; | |
| 12111 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12112 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12113 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12114 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12115 | break; |
| 12116 | } | |
| 12117 | } | |
| e7d1c40c AM |
12118 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12119 | if (htab->params->group_size < 0) | |
| 12120 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12121 | else |
| e7d1c40c | 12122 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12123 | |
| 6f20ed8a AM |
12124 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12125 | return FALSE; | |
| 721956f4 | 12126 | |
| 721956f4 AM |
12127 | while (1) |
| 12128 | { | |
| 12129 | bfd *input_bfd; | |
| 12130 | unsigned int bfd_indx; | |
| a4b6fadd | 12131 | struct map_stub *group; |
| 721956f4 | 12132 | asection *stub_sec; |
| 721956f4 AM |
12133 | |
| 12134 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12135 | |
| 12136 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12137 | input_bfd != NULL; | |
| c72f2fb2 | 12138 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12139 | { |
| 12140 | Elf_Internal_Shdr *symtab_hdr; | |
| 12141 | asection *section; | |
| 6cdc0ccc | 12142 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12143 | |
| 0c8d6e5c | 12144 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12145 | continue; |
| 12146 | ||
| 721956f4 | 12147 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12148 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12149 | if (symtab_hdr->sh_info == 0) |
| 12150 | continue; | |
| 12151 | ||
| 721956f4 AM |
12152 | /* Walk over each section attached to the input bfd. */ |
| 12153 | for (section = input_bfd->sections; | |
| 12154 | section != NULL; | |
| 12155 | section = section->next) | |
| 12156 | { | |
| 721956f4 | 12157 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12158 | |
| 12159 | /* If there aren't any relocs, then there's nothing more | |
| 12160 | to do. */ | |
| 12161 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12162 | || (section->flags & SEC_ALLOC) == 0 |
| 12163 | || (section->flags & SEC_LOAD) == 0 | |
| 12164 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12165 | || section->reloc_count == 0) |
| 12166 | continue; | |
| 12167 | ||
| 12168 | /* If this section is a link-once section that will be | |
| 12169 | discarded, then don't create any stubs. */ | |
| 12170 | if (section->output_section == NULL | |
| 927be08e | 12171 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12172 | continue; |
| 12173 | ||
| 1e2f5b6e AM |
12174 | /* Get the relocs. */ |
| 12175 | internal_relocs | |
| 4ce794b7 | 12176 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12177 | info->keep_memory); |
| 721956f4 | 12178 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12179 | goto error_ret_free_local; |
| 721956f4 AM |
12180 | |
| 12181 | /* Now examine each relocation. */ | |
| 12182 | irela = internal_relocs; | |
| 12183 | irelaend = irela + section->reloc_count; | |
| 12184 | for (; irela < irelaend; irela++) | |
| 12185 | { | |
| 4ce794b7 AM |
12186 | enum elf_ppc64_reloc_type r_type; |
| 12187 | unsigned int r_indx; | |
| 721956f4 AM |
12188 | enum ppc_stub_type stub_type; |
| 12189 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12190 | asection *sym_sec, *code_sec; |
| e054468f | 12191 | bfd_vma sym_value, code_value; |
| 721956f4 | 12192 | bfd_vma destination; |
| 6911b7dc | 12193 | unsigned long local_off; |
| 8843416a | 12194 | bfd_boolean ok_dest; |
| 721956f4 | 12195 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12196 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12197 | struct elf_link_hash_entry *h; |
| 12198 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12199 | char *stub_name; |
| 12200 | const asection *id_sec; | |
| 74f0fb50 | 12201 | struct _opd_sec_data *opd; |
| e054468f | 12202 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12203 | |
| 12204 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12205 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12206 | ||
| 4ce794b7 | 12207 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12208 | { |
| 12209 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12210 | goto error_ret_free_internal; |
| 721956f4 AM |
12211 | } |
| 12212 | ||
| 12213 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12214 | if (r_type != R_PPC64_REL24 |
| 12215 | && r_type != R_PPC64_REL14 | |
| 12216 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12217 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12218 | continue; |
| 12219 | ||
| 12220 | /* Now determine the call target, its name, value, | |
| 12221 | section. */ | |
| 411e1bfb AM |
12222 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12223 | r_indx, input_bfd)) | |
| 12224 | goto error_ret_free_internal; | |
| 12225 | hash = (struct ppc_link_hash_entry *) h; | |
| 12226 | ||
| 8843416a | 12227 | ok_dest = FALSE; |
| 8387904d | 12228 | fdh = NULL; |
| 7fe2b9a6 | 12229 | sym_value = 0; |
| 411e1bfb | 12230 | if (hash == NULL) |
| 721956f4 | 12231 | { |
| 411e1bfb | 12232 | sym_value = sym->st_value; |
| 8843416a | 12233 | ok_dest = TRUE; |
| 721956f4 | 12234 | } |
| 7fe2b9a6 AM |
12235 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12236 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12237 | { | |
| 12238 | sym_value = hash->elf.root.u.def.value; | |
| 12239 | if (sym_sec->output_section != NULL) | |
| 12240 | ok_dest = TRUE; | |
| 12241 | } | |
| 12242 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12243 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12244 | { |
| 99877b66 | 12245 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12246 | use the func descriptor sym instead if it is |
| 12247 | defined. */ | |
| ceb1f1ef | 12248 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 12249 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 12250 | { |
| 8387904d AM |
12251 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12252 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12253 | { | |
| 12254 | sym_sec = fdh->elf.root.u.def.section; | |
| 12255 | sym_value = fdh->elf.root.u.def.value; | |
| 12256 | if (sym_sec->output_section != NULL) | |
| 12257 | ok_dest = TRUE; | |
| 12258 | } | |
| 99877b66 AM |
12259 | else |
| 12260 | fdh = NULL; | |
| 8387904d | 12261 | } |
| 7fe2b9a6 AM |
12262 | } |
| 12263 | else | |
| 12264 | { | |
| 12265 | bfd_set_error (bfd_error_bad_value); | |
| 12266 | goto error_ret_free_internal; | |
| 721956f4 AM |
12267 | } |
| 12268 | ||
| 8843416a | 12269 | destination = 0; |
| 6911b7dc | 12270 | local_off = 0; |
| 8843416a AM |
12271 | if (ok_dest) |
| 12272 | { | |
| 12273 | sym_value += irela->r_addend; | |
| 12274 | destination = (sym_value | |
| 12275 | + sym_sec->output_offset | |
| 12276 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12277 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12278 | ? hash->elf.other | |
| 12279 | : sym->st_other); | |
| 8843416a AM |
12280 | } |
| 12281 | ||
| 8387904d | 12282 | code_sec = sym_sec; |
| e054468f | 12283 | code_value = sym_value; |
| 74f0fb50 AM |
12284 | opd = get_opd_info (sym_sec); |
| 12285 | if (opd != NULL) | |
| 8387904d AM |
12286 | { |
| 12287 | bfd_vma dest; | |
| 12288 | ||
| 74f0fb50 | 12289 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12290 | { |
| 51aecdc5 | 12291 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12292 | if (adjust == -1) |
| 12293 | continue; | |
| e054468f | 12294 | code_value += adjust; |
| 8387904d AM |
12295 | sym_value += adjust; |
| 12296 | } | |
| 12297 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12298 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12299 | if (dest != (bfd_vma) -1) |
| 12300 | { | |
| 12301 | destination = dest; | |
| 12302 | if (fdh != NULL) | |
| 12303 | { | |
| 12304 | /* Fixup old ABI sym to point at code | |
| 12305 | entry. */ | |
| 99877b66 | 12306 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12307 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12308 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12309 | } |
| 12310 | } | |
| 12311 | } | |
| 12312 | ||
| 721956f4 | 12313 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12314 | plt_ent = NULL; |
| 721956f4 | 12315 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12316 | &plt_ent, destination, |
| 12317 | local_off); | |
| ad8e1ba5 AM |
12318 | |
| 12319 | if (stub_type != ppc_stub_plt_call) | |
| 12320 | { | |
| 12321 | /* Check whether we need a TOC adjusting stub. | |
| 12322 | Since the linker pastes together pieces from | |
| 12323 | different object files when creating the | |
| 12324 | _init and _fini functions, it may be that a | |
| 12325 | call to what looks like a local sym is in | |
| 12326 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12327 | if (code_sec != NULL |
| 12328 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12329 | && (htab->sec_info[code_sec->id].toc_off |
| 12330 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12331 | && (code_sec->has_toc_reloc |
| 12332 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12333 | stub_type = ppc_stub_long_branch_r2off; |
| 12334 | } | |
| 12335 | ||
| 721956f4 AM |
12336 | if (stub_type == ppc_stub_none) |
| 12337 | continue; | |
| 12338 | ||
| 411e1bfb AM |
12339 | /* __tls_get_addr calls might be eliminated. */ |
| 12340 | if (stub_type != ppc_stub_plt_call | |
| 12341 | && hash != NULL | |
| 8387904d AM |
12342 | && (hash == htab->tls_get_addr |
| 12343 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12344 | && section->has_tls_reloc |
| 12345 | && irela != internal_relocs) | |
| 12346 | { | |
| 12347 | /* Get tls info. */ | |
| f961d9dd | 12348 | unsigned char *tls_mask; |
| 411e1bfb | 12349 | |
| 3a71aa26 | 12350 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12351 | irela - 1, input_bfd)) |
| 12352 | goto error_ret_free_internal; | |
| e7b938ca | 12353 | if (*tls_mask != 0) |
| 411e1bfb AM |
12354 | continue; |
| 12355 | } | |
| 12356 | ||
| 3b421ab3 AM |
12357 | if (stub_type == ppc_stub_plt_call |
| 12358 | && irela + 1 < irelaend | |
| 12359 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12360 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12361 | { | |
| 12362 | if (!tocsave_find (htab, INSERT, | |
| 12363 | &local_syms, irela + 1, input_bfd)) | |
| 12364 | goto error_ret_free_internal; | |
| 12365 | } | |
| 12366 | else if (stub_type == ppc_stub_plt_call) | |
| 12367 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12368 | |
| 721956f4 | 12369 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12370 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12371 | |
| 12372 | /* Get the name of this stub. */ | |
| 12373 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12374 | if (!stub_name) | |
| 12375 | goto error_ret_free_internal; | |
| 12376 | ||
| 12377 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12378 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12379 | if (stub_entry != NULL) |
| 12380 | { | |
| 12381 | /* The proper stub has already been created. */ | |
| 12382 | free (stub_name); | |
| 794e51c0 AM |
12383 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12384 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12385 | continue; |
| 12386 | } | |
| 12387 | ||
| 25f53a85 | 12388 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12389 | if (stub_entry == NULL) |
| 12390 | { | |
| 12391 | free (stub_name); | |
| 6cdc0ccc AM |
12392 | error_ret_free_internal: |
| 12393 | if (elf_section_data (section)->relocs == NULL) | |
| 12394 | free (internal_relocs); | |
| 12395 | error_ret_free_local: | |
| 12396 | if (local_syms != NULL | |
| 12397 | && (symtab_hdr->contents | |
| 12398 | != (unsigned char *) local_syms)) | |
| 12399 | free (local_syms); | |
| b34976b6 | 12400 | return FALSE; |
| 721956f4 AM |
12401 | } |
| 12402 | ||
| ad8e1ba5 | 12403 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12404 | if (stub_type != ppc_stub_plt_call |
| 12405 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12406 | { |
| 12407 | stub_entry->target_value = code_value; | |
| 12408 | stub_entry->target_section = code_sec; | |
| 12409 | } | |
| 12410 | else | |
| 12411 | { | |
| 12412 | stub_entry->target_value = sym_value; | |
| 12413 | stub_entry->target_section = sym_sec; | |
| 12414 | } | |
| 721956f4 | 12415 | stub_entry->h = hash; |
| e054468f | 12416 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12417 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12418 | |
| 12419 | if (stub_entry->h != NULL) | |
| 12420 | htab->stub_globals += 1; | |
| 721956f4 AM |
12421 | } |
| 12422 | ||
| 12423 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12424 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12425 | free (internal_relocs); |
| 721956f4 | 12426 | } |
| 6cdc0ccc AM |
12427 | |
| 12428 | if (local_syms != NULL | |
| 12429 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12430 | { | |
| 12431 | if (!info->keep_memory) | |
| 12432 | free (local_syms); | |
| 12433 | else | |
| 12434 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12435 | } | |
| 721956f4 AM |
12436 | } |
| 12437 | ||
| 5c3dead3 | 12438 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12439 | stub sections. */ |
| e7d1c40c | 12440 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12441 | stub_sec != NULL; |
| 12442 | stub_sec = stub_sec->next) | |
| e717da7e | 12443 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12444 | { |
| 5c3dead3 | 12445 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12446 | stub_sec->size = 0; |
| 12447 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12448 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12449 | } |
| eea6121a AM |
12450 | |
| 12451 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12452 | htab->brlt->reloc_count = 0; |
| 12453 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12454 | if (htab->relbrlt != NULL) |
| eea6121a | 12455 | htab->relbrlt->size = 0; |
| 721956f4 | 12456 | |
| 63bc6f6c | 12457 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12458 | |
| a4b6fadd AM |
12459 | for (group = htab->group; group != NULL; group = group->next) |
| 12460 | if (group->needs_save_res) | |
| 12461 | group->stub_sec->size += htab->sfpr->size; | |
| 12462 | ||
| 176a0d42 AM |
12463 | if (info->emitrelocations |
| 12464 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12465 | { | |
| 12466 | htab->glink->reloc_count = 1; | |
| 12467 | htab->glink->flags |= SEC_RELOC; | |
| 12468 | } | |
| 12469 | ||
| 58d180e8 AM |
12470 | if (htab->glink_eh_frame != NULL |
| 12471 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12472 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12473 | { |
| 4bbe044a | 12474 | size_t size = 0, align; |
| 58d180e8 | 12475 | |
| e7d1c40c | 12476 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12477 | stub_sec != NULL; |
| 12478 | stub_sec = stub_sec->next) | |
| 12479 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12480 | size += 24; |
| 58d180e8 AM |
12481 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12482 | size += 24; | |
| 12483 | if (size != 0) | |
| 12484 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12485 | align = 1; |
| 12486 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12487 | align -= 1; | |
| 12488 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12489 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12490 | htab->glink_eh_frame->size = size; | |
| 12491 | } | |
| 12492 | ||
| e7d1c40c AM |
12493 | if (htab->params->plt_stub_align != 0) |
| 12494 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12495 | stub_sec != NULL; |
| 12496 | stub_sec = stub_sec->next) | |
| 12497 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12498 | stub_sec->size = ((stub_sec->size |
| 12499 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 12500 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 12501 | |
| e7d1c40c | 12502 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12503 | stub_sec != NULL; |
| 12504 | stub_sec = stub_sec->next) | |
| 12505 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| 12506 | && stub_sec->rawsize != stub_sec->size) | |
| 12507 | break; | |
| 12508 | ||
| 12509 | /* Exit from this loop when no stubs have been added, and no stubs | |
| 12510 | have changed size. */ | |
| 58d180e8 AM |
12511 | if (stub_sec == NULL |
| 12512 | && (htab->glink_eh_frame == NULL | |
| 12513 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12514 | break; |
| 12515 | ||
| 721956f4 | 12516 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12517 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12518 | } |
| 12519 | ||
| da44f4e5 AM |
12520 | if (htab->glink_eh_frame != NULL |
| 12521 | && htab->glink_eh_frame->size != 0) | |
| 12522 | { | |
| 12523 | bfd_vma val; | |
| 12524 | bfd_byte *p, *last_fde; | |
| 12525 | size_t last_fde_len, size, align, pad; | |
| 12526 | asection *stub_sec; | |
| 12527 | ||
| 12528 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12529 | if (p == NULL) | |
| 12530 | return FALSE; | |
| 12531 | htab->glink_eh_frame->contents = p; | |
| 12532 | last_fde = p; | |
| 12533 | ||
| 12534 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12535 | /* CIE length (rewrite in case little-endian). */ | |
| 12536 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12537 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12538 | p += sizeof (glink_eh_frame_cie); | |
| 12539 | ||
| 12540 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12541 | stub_sec != NULL; | |
| 12542 | stub_sec = stub_sec->next) | |
| 12543 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12544 | { | |
| 12545 | last_fde = p; | |
| 12546 | last_fde_len = 20; | |
| 12547 | /* FDE length. */ | |
| 12548 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12549 | p += 4; | |
| 12550 | /* CIE pointer. */ | |
| 12551 | val = p - htab->glink_eh_frame->contents; | |
| 12552 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12553 | p += 4; | |
| 12554 | /* Offset to stub section, written later. */ | |
| 12555 | p += 4; | |
| 12556 | /* stub section size. */ | |
| 12557 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12558 | p += 4; | |
| 12559 | /* Augmentation. */ | |
| 12560 | p += 1; | |
| 12561 | /* Pad. */ | |
| 12562 | p += 7; | |
| 12563 | } | |
| 12564 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12565 | { | |
| 12566 | last_fde = p; | |
| 12567 | last_fde_len = 20; | |
| 12568 | /* FDE length. */ | |
| 12569 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12570 | p += 4; | |
| 12571 | /* CIE pointer. */ | |
| 12572 | val = p - htab->glink_eh_frame->contents; | |
| 12573 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12574 | p += 4; | |
| 12575 | /* Offset to .glink, written later. */ | |
| 12576 | p += 4; | |
| 12577 | /* .glink size. */ | |
| 12578 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12579 | p += 4; | |
| 12580 | /* Augmentation. */ | |
| 12581 | p += 1; | |
| 12582 | ||
| 12583 | *p++ = DW_CFA_advance_loc + 1; | |
| 12584 | *p++ = DW_CFA_register; | |
| 12585 | *p++ = 65; | |
| 9f08fa5c | 12586 | *p++ = htab->opd_abi ? 12 : 0; |
| da44f4e5 AM |
12587 | *p++ = DW_CFA_advance_loc + 4; |
| 12588 | *p++ = DW_CFA_restore_extended; | |
| 12589 | *p++ = 65; | |
| 12590 | } | |
| 12591 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12592 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12593 | zero padding will be seen as a terminator. */ | |
| 12594 | size = p - htab->glink_eh_frame->contents; | |
| 12595 | align = 1; | |
| 12596 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12597 | align -= 1; | |
| 12598 | pad = ((size + align) & ~align) - size; | |
| 12599 | htab->glink_eh_frame->size = size + pad; | |
| 12600 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12601 | } | |
| 12602 | ||
| d969d15f AM |
12603 | maybe_strip_output (info, htab->brlt); |
| 12604 | if (htab->glink_eh_frame != NULL) | |
| 12605 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12606 | |
| b34976b6 | 12607 | return TRUE; |
| 721956f4 AM |
12608 | } |
| 12609 | ||
| 12610 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12611 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12612 | |
| 805fc799 | 12613 | bfd_vma |
| 1c865ab2 | 12614 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12615 | { |
| 805fc799 | 12616 | asection *s; |
| a27e685f | 12617 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12618 | |
| 43417696 AM |
12619 | if (info != NULL) |
| 12620 | { | |
| 12621 | struct elf_link_hash_entry *h; | |
| 12622 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12623 | ||
| 12624 | if (is_elf_hash_table (htab) | |
| 12625 | && htab->hgot != NULL) | |
| 12626 | h = htab->hgot; | |
| 12627 | else | |
| 12628 | { | |
| 12629 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12630 | if (is_elf_hash_table (htab)) | |
| 12631 | htab->hgot = h; | |
| 12632 | } | |
| 12633 | if (h != NULL | |
| 12634 | && h->root.type == bfd_link_hash_defined | |
| 12635 | && !h->root.linker_def | |
| 12636 | && (!is_elf_hash_table (htab) | |
| 12637 | || h->def_regular)) | |
| 12638 | { | |
| 12639 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12640 | + h->root.u.def.section->output_offset | |
| 12641 | + h->root.u.def.section->output_section->vma); | |
| 12642 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12643 | return TOCstart; | |
| 12644 | } | |
| 12645 | } | |
| 12646 | ||
| 805fc799 AM |
12647 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12648 | order. The TOC starts where the first of these sections starts. */ | |
| 12649 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12650 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12651 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12652 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12653 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12654 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12655 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12656 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12657 | { |
| 12658 | /* This may happen for | |
| 12659 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12660 | .toc directive | |
| 12661 | o bad linker script | |
| 12662 | o --gc-sections and empty TOC sections | |
| 12663 | ||
| 12664 | FIXME: Warn user? */ | |
| 12665 | ||
| 12666 | /* Look for a likely section. We probably won't even be | |
| 12667 | using TOCstart. */ | |
| 12668 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12669 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12670 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12671 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12672 | break; | |
| 721956f4 | 12673 | if (s == NULL) |
| 805fc799 | 12674 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12675 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12676 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12677 | break; | |
| 721956f4 | 12678 | if (s == NULL) |
| 805fc799 | 12679 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12680 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12681 | == SEC_ALLOC) | |
| 805fc799 | 12682 | break; |
| 721956f4 | 12683 | if (s == NULL) |
| 805fc799 | 12684 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12685 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12686 | break; |
| 12687 | } | |
| 721956f4 | 12688 | |
| 805fc799 AM |
12689 | TOCstart = 0; |
| 12690 | if (s != NULL) | |
| 12691 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12692 | |
| a27e685f AM |
12693 | /* Force alignment. */ |
| 12694 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12695 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12696 | _bfd_set_gp_value (obfd, TOCstart); |
| 12697 | ||
| 810d4e75 | 12698 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12699 | { |
| 12700 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12701 | ||
| 810d4e75 AM |
12702 | if (htab != NULL) |
| 12703 | { | |
| 12704 | if (htab->elf.hgot != NULL) | |
| 12705 | { | |
| a27e685f | 12706 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12707 | htab->elf.hgot->root.u.def.section = s; |
| 12708 | } | |
| 12709 | } | |
| 12710 | else | |
| 1c865ab2 | 12711 | { |
| 810d4e75 AM |
12712 | struct bfd_link_hash_entry *bh = NULL; |
| 12713 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12714 | s, TOC_BASE_OFF - adjust, |
| 12715 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12716 | } |
| 12717 | } | |
| 805fc799 | 12718 | return TOCstart; |
| 721956f4 AM |
12719 | } |
| 12720 | ||
| a345bc8d AM |
12721 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12722 | write out any global entry stubs. */ | |
| 12723 | ||
| 12724 | static bfd_boolean | |
| 12725 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12726 | { | |
| 12727 | struct bfd_link_info *info; | |
| 12728 | struct ppc_link_hash_table *htab; | |
| 12729 | struct plt_entry *pent; | |
| 12730 | asection *s; | |
| 12731 | ||
| 12732 | if (h->root.type == bfd_link_hash_indirect) | |
| 12733 | return TRUE; | |
| 12734 | ||
| 12735 | if (!h->pointer_equality_needed) | |
| 12736 | return TRUE; | |
| 12737 | ||
| 12738 | if (h->def_regular) | |
| 12739 | return TRUE; | |
| 12740 | ||
| 12741 | info = inf; | |
| 12742 | htab = ppc_hash_table (info); | |
| 12743 | if (htab == NULL) | |
| 12744 | return FALSE; | |
| 12745 | ||
| 12746 | s = htab->glink; | |
| 12747 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12748 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12749 | && pent->addend == 0) | |
| 12750 | { | |
| 12751 | bfd_byte *p; | |
| 12752 | asection *plt; | |
| 12753 | bfd_vma off; | |
| 12754 | ||
| a345bc8d | 12755 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12756 | plt = htab->elf.splt; |
| a345bc8d AM |
12757 | if (!htab->elf.dynamic_sections_created |
| 12758 | || h->dynindx == -1) | |
| 33e44f2e | 12759 | plt = htab->elf.iplt; |
| a345bc8d AM |
12760 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12761 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12762 | ||
| 12763 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12764 | { | |
| 12765 | info->callbacks->einfo | |
| 12766 | (_("%P: linkage table error against `%T'\n"), | |
| 12767 | h->root.root.string); | |
| 12768 | bfd_set_error (bfd_error_bad_value); | |
| 12769 | htab->stub_error = TRUE; | |
| 12770 | } | |
| 12771 | ||
| 7341d5e2 AM |
12772 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12773 | if (htab->params->emit_stub_syms) | |
| 12774 | { | |
| 12775 | size_t len = strlen (h->root.root.string); | |
| 12776 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12777 | ||
| 12778 | if (name == NULL) | |
| 12779 | return FALSE; | |
| 12780 | ||
| 12781 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12782 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12783 | if (h == NULL) | |
| 12784 | return FALSE; | |
| 12785 | if (h->root.type == bfd_link_hash_new) | |
| 12786 | { | |
| 12787 | h->root.type = bfd_link_hash_defined; | |
| 12788 | h->root.u.def.section = s; | |
| 12789 | h->root.u.def.value = p - s->contents; | |
| 12790 | h->ref_regular = 1; | |
| 12791 | h->def_regular = 1; | |
| 12792 | h->ref_regular_nonweak = 1; | |
| 12793 | h->forced_local = 1; | |
| 12794 | h->non_elf = 0; | |
| 2ec55de3 | 12795 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12796 | } |
| 12797 | } | |
| 12798 | ||
| a345bc8d AM |
12799 | if (PPC_HA (off) != 0) |
| 12800 | { | |
| 12801 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12802 | p += 4; | |
| 12803 | } | |
| 12804 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 12805 | p += 4; | |
| 12806 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 12807 | p += 4; | |
| 12808 | bfd_put_32 (s->owner, BCTR, p); | |
| 12809 | break; | |
| 12810 | } | |
| 12811 | return TRUE; | |
| 12812 | } | |
| 12813 | ||
| 721956f4 AM |
12814 | /* Build all the stubs associated with the current output file. |
| 12815 | The stubs are kept in a hash table attached to the main linker | |
| 12816 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12817 | ||
| b34976b6 | 12818 | bfd_boolean |
| e7d1c40c | 12819 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 12820 | char **stats) |
| 5d1634d7 AM |
12821 | { |
| 12822 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 12823 | struct map_stub *group; |
| 721956f4 | 12824 | asection *stub_sec; |
| 5d1634d7 | 12825 | bfd_byte *p; |
| e717da7e | 12826 | int stub_sec_count = 0; |
| 5d1634d7 | 12827 | |
| 4dfe6ac6 NC |
12828 | if (htab == NULL) |
| 12829 | return FALSE; | |
| 12830 | ||
| eea6121a | 12831 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 12832 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12833 | stub_sec != NULL; |
| 12834 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12835 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12836 | && stub_sec->size != 0) | |
| e717da7e | 12837 | { |
| e7d1c40c | 12838 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
12839 | if (stub_sec->contents == NULL) |
| 12840 | return FALSE; | |
| 12841 | /* We want to check that built size is the same as calculated | |
| 12842 | size. rawsize is a convenient location to use. */ | |
| 12843 | stub_sec->rawsize = stub_sec->size; | |
| 12844 | stub_sec->size = 0; | |
| e717da7e | 12845 | } |
| 5d1634d7 | 12846 | |
| 23eb7e01 | 12847 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12848 | { |
| 9f951329 | 12849 | unsigned int indx; |
| ad8e1ba5 | 12850 | bfd_vma plt0; |
| 9f951329 | 12851 | |
| 721956f4 | 12852 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 12853 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
12854 | { |
| 12855 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12856 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12857 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12858 | if (h == NULL) |
| 12859 | return FALSE; | |
| 12860 | if (h->root.type == bfd_link_hash_new) | |
| 12861 | { | |
| 12862 | h->root.type = bfd_link_hash_defined; | |
| 12863 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12864 | h->root.u.def.value = 8; |
| f5385ebf AM |
12865 | h->ref_regular = 1; |
| 12866 | h->def_regular = 1; | |
| 12867 | h->ref_regular_nonweak = 1; | |
| 12868 | h->forced_local = 1; | |
| 12869 | h->non_elf = 0; | |
| 2ec55de3 | 12870 | h->root.linker_def = 1; |
| 97b639ba AM |
12871 | } |
| 12872 | } | |
| 33e44f2e AM |
12873 | plt0 = (htab->elf.splt->output_section->vma |
| 12874 | + htab->elf.splt->output_offset | |
| 12875 | - 16); | |
| 176a0d42 AM |
12876 | if (info->emitrelocations) |
| 12877 | { | |
| 12878 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12879 | if (r == NULL) | |
| 12880 | return FALSE; | |
| 12881 | r->r_offset = (htab->glink->output_offset | |
| 12882 | + htab->glink->output_section->vma); | |
| 12883 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12884 | r->r_addend = plt0; | |
| 12885 | } | |
| 4ce794b7 | 12886 | p = htab->glink->contents; |
| 176a0d42 | 12887 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12888 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12889 | p += 8; | |
| b9e5796b AM |
12890 | if (htab->opd_abi) |
| 12891 | { | |
| 12892 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 12893 | p += 4; | |
| 12894 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12895 | p += 4; | |
| 12896 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12897 | p += 4; | |
| 12898 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12899 | p += 4; | |
| 12900 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 12901 | p += 4; | |
| 12902 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12903 | p += 4; | |
| 12904 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12905 | p += 4; | |
| 12906 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 12907 | p += 4; | |
| 12908 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12909 | p += 4; | |
| 12910 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 12911 | p += 4; | |
| 12912 | } | |
| 12913 | else | |
| 12914 | { | |
| 12915 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 12916 | p += 4; | |
| 12917 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12918 | p += 4; | |
| 12919 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12920 | p += 4; | |
| 12921 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12922 | p += 4; | |
| 12923 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 12924 | p += 4; | |
| 12925 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 12926 | p += 4; | |
| 12927 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12928 | p += 4; | |
| 12929 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 12930 | p += 4; | |
| 12931 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12932 | p += 4; | |
| 12933 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 12934 | p += 4; | |
| 12935 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12936 | p += 4; | |
| 12937 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 12938 | p += 4; | |
| 12939 | } | |
| 4ce794b7 | 12940 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 12941 | p += 4; |
| ee4bf8d2 AM |
12942 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 12943 | { | |
| 12944 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 12945 | p += 4; | |
| 12946 | } | |
| ad8e1ba5 | 12947 | |
| 9f951329 AM |
12948 | /* Build the .glink lazy link call stubs. */ |
| 12949 | indx = 0; | |
| a345bc8d | 12950 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 12951 | { |
| b9e5796b | 12952 | if (htab->opd_abi) |
| 9f951329 | 12953 | { |
| b9e5796b AM |
12954 | if (indx < 0x8000) |
| 12955 | { | |
| 12956 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 12957 | p += 4; | |
| 12958 | } | |
| 12959 | else | |
| 12960 | { | |
| 12961 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 12962 | p += 4; | |
| 12963 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 12964 | p); | |
| 12965 | p += 4; | |
| 12966 | } | |
| 9f951329 | 12967 | } |
| 4ce794b7 | 12968 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 12969 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 12970 | indx++; |
| 9f951329 AM |
12971 | p += 4; |
| 12972 | } | |
| a345bc8d AM |
12973 | |
| 12974 | /* Build .glink global entry stubs. */ | |
| 12975 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 12976 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 12977 | } |
| 5d1634d7 | 12978 | |
| 7341d5e2 | 12979 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 12980 | { |
| 4ce794b7 | 12981 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 12982 | htab->brlt->size); |
| 4ce794b7 | 12983 | if (htab->brlt->contents == NULL) |
| b34976b6 | 12984 | return FALSE; |
| 721956f4 | 12985 | } |
| ee75fd95 | 12986 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
12987 | { |
| 12988 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 12989 | htab->relbrlt->size); |
| 63bc6f6c AM |
12990 | if (htab->relbrlt->contents == NULL) |
| 12991 | return FALSE; | |
| 12992 | } | |
| 5d1634d7 | 12993 | |
| 721956f4 AM |
12994 | /* Build the stubs as directed by the stub hash table. */ |
| 12995 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 12996 | |
| a4b6fadd AM |
12997 | for (group = htab->group; group != NULL; group = group->next) |
| 12998 | if (group->needs_save_res) | |
| 12999 | { | |
| 13000 | stub_sec = group->stub_sec; | |
| 13001 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13002 | htab->sfpr->size); | |
| 13003 | if (htab->params->emit_stub_syms) | |
| 13004 | { | |
| 13005 | unsigned int i; | |
| 13006 | ||
| 13007 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13008 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13009 | return FALSE; | |
| 13010 | } | |
| 13011 | stub_sec->size += htab->sfpr->size; | |
| 13012 | } | |
| 13013 | ||
| aa8a7074 AM |
13014 | if (htab->relbrlt != NULL) |
| 13015 | htab->relbrlt->reloc_count = 0; | |
| 13016 | ||
| e7d1c40c AM |
13017 | if (htab->params->plt_stub_align != 0) |
| 13018 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
13019 | stub_sec != NULL; |
| 13020 | stub_sec = stub_sec->next) | |
| 13021 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
13022 | stub_sec->size = ((stub_sec->size |
| 13023 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13024 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13025 | |
| e7d1c40c | 13026 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13027 | stub_sec != NULL; |
| 13028 | stub_sec = stub_sec->next) | |
| e717da7e AM |
13029 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 13030 | { | |
| 13031 | stub_sec_count += 1; | |
| eea6121a | 13032 | if (stub_sec->rawsize != stub_sec->size) |
| e717da7e AM |
13033 | break; |
| 13034 | } | |
| 5d1634d7 | 13035 | |
| da44f4e5 AM |
13036 | /* Note that the glink_eh_frame check here is not only testing that |
| 13037 | the generated size matched the calculated size but also that | |
| 13038 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 13039 | if (stub_sec != NULL |
| 58d180e8 AM |
13040 | || (htab->glink_eh_frame != NULL |
| 13041 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13042 | { |
| b34976b6 | 13043 | htab->stub_error = TRUE; |
| 8de848d8 | 13044 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13045 | } |
| 721956f4 | 13046 | |
| d2a300cf AM |
13047 | if (htab->stub_error) |
| 13048 | return FALSE; | |
| 13049 | ||
| 13050 | if (stats != NULL) | |
| 13051 | { | |
| 13052 | *stats = bfd_malloc (500); | |
| 13053 | if (*stats == NULL) | |
| 13054 | return FALSE; | |
| 13055 | ||
| ee75fd95 | 13056 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13057 | " branch %lu\n" |
| 13058 | " toc adjust %lu\n" | |
| 13059 | " long branch %lu\n" | |
| 13060 | " long toc adj %lu\n" | |
| 794e51c0 | 13061 | " plt call %lu\n" |
| 7341d5e2 AM |
13062 | " plt call toc %lu\n" |
| 13063 | " global entry %lu"), | |
| e717da7e | 13064 | stub_sec_count, |
| ee75fd95 | 13065 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13066 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13067 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13068 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13069 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13070 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13071 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13072 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13073 | } |
| 13074 | return TRUE; | |
| 5bd4f169 AM |
13075 | } |
| 13076 | ||
| 99877b66 AM |
13077 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 13078 | ||
| 13079 | static bfd_boolean | |
| 13080 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 13081 | { | |
| 13082 | struct ppc_link_hash_entry *eh; | |
| 13083 | ||
| 13084 | if (h->root.type == bfd_link_hash_indirect) | |
| 13085 | return TRUE; | |
| 13086 | ||
| 99877b66 AM |
13087 | eh = (struct ppc_link_hash_entry *) h; |
| 13088 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 13089 | return TRUE; | |
| 13090 | ||
| 13091 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 13092 | return TRUE; | |
| 13093 | } | |
| 13094 | ||
| 13095 | void | |
| 13096 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 13097 | { | |
| 13098 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
13099 | |
| 13100 | if (htab != NULL) | |
| 13101 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
13102 | } |
| 13103 | ||
| 60124e18 AM |
13104 | /* What to do when ld finds relocations against symbols defined in |
| 13105 | discarded sections. */ | |
| 13106 | ||
| 13107 | static unsigned int | |
| 13108 | ppc64_elf_action_discarded (asection *sec) | |
| 13109 | { | |
| 13110 | if (strcmp (".opd", sec->name) == 0) | |
| 13111 | return 0; | |
| 13112 | ||
| 13113 | if (strcmp (".toc", sec->name) == 0) | |
| 13114 | return 0; | |
| 13115 | ||
| bce50a28 JJ |
13116 | if (strcmp (".toc1", sec->name) == 0) |
| 13117 | return 0; | |
| 13118 | ||
| 60124e18 AM |
13119 | return _bfd_elf_default_action_discarded (sec); |
| 13120 | } | |
| 13121 | ||
| 5bd4f169 AM |
13122 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13123 | to handle the relocations for a section. | |
| 13124 | ||
| 13125 | The relocs are always passed as Rela structures; if the section | |
| 13126 | actually uses Rel structures, the r_addend field will always be | |
| 13127 | zero. | |
| 13128 | ||
| 13129 | This function is responsible for adjust the section contents as | |
| 13130 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13131 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13132 | necessary. |
| 13133 | ||
| 13134 | This function does not have to worry about setting the reloc | |
| 13135 | address or the reloc symbol index. | |
| 13136 | ||
| 13137 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13138 | ||
| 13139 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13140 | corresponding to the st_shndx field of each local symbol. | |
| 13141 | ||
| 13142 | The global hash table entry for the global symbols can be found | |
| 13143 | via elf_sym_hashes (input_bfd). | |
| 13144 | ||
| 1049f94e | 13145 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13146 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13147 | going to be the section symbol corresponding to the output | |
| 13148 | section, which means that the addend must be adjusted | |
| 13149 | accordingly. */ | |
| 13150 | ||
| b34976b6 | 13151 | static bfd_boolean |
| 4ce794b7 AM |
13152 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13153 | struct bfd_link_info *info, | |
| 13154 | bfd *input_bfd, | |
| 13155 | asection *input_section, | |
| 13156 | bfd_byte *contents, | |
| 13157 | Elf_Internal_Rela *relocs, | |
| 13158 | Elf_Internal_Sym *local_syms, | |
| 13159 | asection **local_sections) | |
| 5bd4f169 | 13160 | { |
| 65f38f15 | 13161 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13162 | Elf_Internal_Shdr *symtab_hdr; |
| 13163 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13164 | Elf_Internal_Rela *rel; |
| c316a17c | 13165 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13166 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13167 | Elf_Internal_Rela outrel; |
| 13168 | bfd_byte *loc; | |
| 411e1bfb | 13169 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13170 | bfd_vma TOCstart; |
| b34976b6 AM |
13171 | bfd_boolean ret = TRUE; |
| 13172 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13173 | /* Assume 'at' branch hints. */ |
| 13174 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 13175 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 13176 | |
| 65f38f15 | 13177 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13178 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13179 | ppc_howto_init (); |
| 13180 | ||
| 65f38f15 | 13181 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13182 | if (htab == NULL) |
| 13183 | return FALSE; | |
| ee75fd95 AM |
13184 | |
| 13185 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13186 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13187 | return TRUE; |
| 13188 | ||
| 0c8d6e5c | 13189 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13190 | |
| 411e1bfb | 13191 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13192 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13193 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13194 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13195 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13196 | |
| c316a17c | 13197 | rel = wrel = relocs; |
| 5bd4f169 | 13198 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13199 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13200 | { |
| 04c9666a | 13201 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13202 | bfd_vma addend; |
| 5bd4f169 AM |
13203 | bfd_reloc_status_type r; |
| 13204 | Elf_Internal_Sym *sym; | |
| 13205 | asection *sec; | |
| 039b3fef AM |
13206 | struct elf_link_hash_entry *h_elf; |
| 13207 | struct ppc_link_hash_entry *h; | |
| 13208 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13209 | const char *sym_name; |
| 0d4792f7 | 13210 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13211 | bfd_vma toc_addend; |
| f961d9dd AM |
13212 | unsigned char tls_mask, tls_gd, tls_type; |
| 13213 | unsigned char sym_type; | |
| 5bd4f169 | 13214 | bfd_vma relocation; |
| b34976b6 AM |
13215 | bfd_boolean unresolved_reloc; |
| 13216 | bfd_boolean warned; | |
| bc30df16 | 13217 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13218 | unsigned int insn; |
| e11840f9 | 13219 | unsigned int mask; |
| 721956f4 AM |
13220 | struct ppc_stub_hash_entry *stub_entry; |
| 13221 | bfd_vma max_br_offset; | |
| 13222 | bfd_vma from; | |
| c316a17c | 13223 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13224 | reloc_howto_type *howto; |
| 13225 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13226 | |
| c316a17c AM |
13227 | again: |
| 13228 | orig_rel = *rel; | |
| 13229 | ||
| 4ce794b7 | 13230 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13231 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13232 | |
| 13233 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13234 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13235 | proper TOC base to use. */ | |
| 13236 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13237 | && wrel != relocs |
| 13238 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13239 | && is_opd) |
| c316a17c | 13240 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13241 | |
| 4ce794b7 AM |
13242 | sym = NULL; |
| 13243 | sec = NULL; | |
| 039b3fef | 13244 | h_elf = NULL; |
| 4ce794b7 | 13245 | sym_name = NULL; |
| b34976b6 AM |
13246 | unresolved_reloc = FALSE; |
| 13247 | warned = FALSE; | |
| 65f38f15 | 13248 | |
| 0b13192e | 13249 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13250 | { |
| 13251 | /* It's a local symbol. */ | |
| 74f0fb50 | 13252 | struct _opd_sec_data *opd; |
| 4025353c | 13253 | |
| 5bd4f169 AM |
13254 | sym = local_syms + r_symndx; |
| 13255 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13256 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13257 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13258 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13259 | opd = get_opd_info (sec); |
| 13260 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13261 | { |
| 51aecdc5 AM |
13262 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13263 | + rel->r_addend)]; | |
| 4025353c AM |
13264 | if (adjust == -1) |
| 13265 | relocation = 0; | |
| 13266 | else | |
| 4cc603a5 AM |
13267 | { |
| 13268 | /* If this is a relocation against the opd section sym | |
| 13269 | and we have edited .opd, adjust the reloc addend so | |
| 13270 | that ld -r and ld --emit-relocs output is correct. | |
| 13271 | If it is a reloc against some other .opd symbol, | |
| 13272 | then the symbol value will be adjusted later. */ | |
| 13273 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13274 | rel->r_addend += adjust; | |
| 13275 | else | |
| 13276 | relocation += adjust; | |
| 13277 | } | |
| 1e2f5b6e | 13278 | } |
| 5bd4f169 AM |
13279 | } |
| 13280 | else | |
| 13281 | { | |
| 62d887d4 L |
13282 | bfd_boolean ignored; |
| 13283 | ||
| b2a8e766 AM |
13284 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13285 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13286 | h_elf, sec, relocation, |
| 62d887d4 | 13287 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13288 | sym_name = h_elf->root.root.string; |
| 13289 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13290 | if (sec != NULL |
| 13291 | && sec->owner == output_bfd | |
| 13292 | && strcmp (sec->name, ".opd") == 0) | |
| 13293 | { | |
| 13294 | /* This is a symbol defined in a linker script. All | |
| 13295 | such are defined in output sections, even those | |
| 13296 | defined by simple assignment from a symbol defined in | |
| 13297 | an input section. Transfer the symbol to an | |
| 13298 | appropriate input .opd section, so that a branch to | |
| 13299 | this symbol will be mapped to the location specified | |
| 13300 | by the opd entry. */ | |
| 13301 | struct bfd_link_order *lo; | |
| 13302 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13303 | if (lo->type == bfd_indirect_link_order) | |
| 13304 | { | |
| 13305 | asection *isec = lo->u.indirect.section; | |
| 13306 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13307 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13308 | + isec->size)) | |
| 13309 | { | |
| 13310 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13311 | h_elf->root.u.def.section = isec; | |
| 13312 | sec = isec; | |
| 13313 | break; | |
| 13314 | } | |
| 13315 | } | |
| 13316 | } | |
| 5bd4f169 | 13317 | } |
| 039b3fef | 13318 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13319 | |
| dbaa2011 | 13320 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13321 | { |
| 13322 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13323 | input_bfd, input_section, | |
| 13324 | contents + rel->r_offset); | |
| 13325 | wrel->r_offset = rel->r_offset; | |
| 13326 | wrel->r_info = 0; | |
| 13327 | wrel->r_addend = 0; | |
| 13328 | ||
| 13329 | /* For ld -r, remove relocations in debug sections against | |
| 13330 | sections defined in discarded sections. Not done for | |
| 13331 | non-debug to preserve relocs in .eh_frame which the | |
| 13332 | eh_frame editing code expects to be present. */ | |
| 13333 | if (bfd_link_relocatable (info) | |
| 13334 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13335 | wrel--; | |
| 13336 | ||
| 13337 | continue; | |
| 13338 | } | |
| ab96bf03 | 13339 | |
| 0e1862bb | 13340 | if (bfd_link_relocatable (info)) |
| c316a17c | 13341 | goto copy_reloc; |
| ab96bf03 | 13342 | |
| f40da81b AM |
13343 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13344 | { | |
| 6f20ed8a | 13345 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13346 | sec = bfd_abs_section_ptr; |
| 13347 | unresolved_reloc = FALSE; | |
| 13348 | } | |
| 13349 | ||
| 951fd09b AM |
13350 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13351 | based on information we collected in tls_optimize. We edit | |
| 13352 | RELOCS so that --emit-relocs will output something sensible | |
| 13353 | for the final instruction stream. */ | |
| 13354 | tls_mask = 0; | |
| 13355 | tls_gd = 0; | |
| 0d4792f7 | 13356 | toc_symndx = 0; |
| 727fc41e AM |
13357 | if (h != NULL) |
| 13358 | tls_mask = h->tls_mask; | |
| 13359 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13360 | { |
| e054468f AM |
13361 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13362 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13363 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13364 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13365 | tls_mask = lgot_masks[r_symndx]; |
| 13366 | } | |
| 13367 | if (tls_mask == 0 | |
| 13368 | && (r_type == R_PPC64_TLS | |
| 13369 | || r_type == R_PPC64_TLSGD | |
| 13370 | || r_type == R_PPC64_TLSLD)) | |
| 13371 | { | |
| 13372 | /* Check for toc tls entries. */ | |
| f961d9dd | 13373 | unsigned char *toc_tls; |
| 0d4792f7 | 13374 | |
| 727fc41e AM |
13375 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13376 | &local_syms, rel, input_bfd)) | |
| 13377 | return FALSE; | |
| 0d4792f7 | 13378 | |
| 727fc41e AM |
13379 | if (toc_tls) |
| 13380 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13381 | } |
| 13382 | ||
| 13383 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13384 | relocs are used with non-tls syms. */ | |
| cf35638d | 13385 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13386 | && r_type != R_PPC64_NONE |
| 13387 | && (h == NULL | |
| 039b3fef AM |
13388 | || h->elf.root.type == bfd_link_hash_defined |
| 13389 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13390 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13391 | != (sym_type == STT_TLS | |
| 13392 | || (sym_type == STT_SECTION | |
| 13393 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13394 | { |
| 727fc41e AM |
13395 | if (tls_mask != 0 |
| 13396 | && (r_type == R_PPC64_TLS | |
| 13397 | || r_type == R_PPC64_TLSGD | |
| 13398 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13399 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13400 | ; | |
| 13401 | else | |
| 25f53a85 | 13402 | info->callbacks->einfo |
| 1d483afe | 13403 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
13404 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 13405 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 13406 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13407 | ppc64_elf_howto_table[r_type]->name, |
| 13408 | sym_name); | |
| 411e1bfb AM |
13409 | } |
| 13410 | ||
| 13411 | /* Ensure reloc mapping code below stays sane. */ | |
| 13412 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13413 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13414 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13415 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13416 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13417 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13418 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13419 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13420 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13421 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13422 | abort (); | |
| 0d4792f7 | 13423 | |
| 411e1bfb AM |
13424 | switch (r_type) |
| 13425 | { | |
| 13426 | default: | |
| 411e1bfb AM |
13427 | break; |
| 13428 | ||
| ba761f19 AM |
13429 | case R_PPC64_LO_DS_OPT: |
| 13430 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 13431 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 13432 | abort (); | |
| 13433 | insn += (14u << 26) - (58u << 26); | |
| 13434 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 13435 | r_type = R_PPC64_TOC16_LO; | |
| 13436 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13437 | break; | |
| 13438 | ||
| 411e1bfb AM |
13439 | case R_PPC64_TOC16: |
| 13440 | case R_PPC64_TOC16_LO: | |
| 13441 | case R_PPC64_TOC16_DS: | |
| 13442 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13443 | { |
| 13444 | /* Check for toc tls entries. */ | |
| f961d9dd | 13445 | unsigned char *toc_tls; |
| 951fd09b | 13446 | int retval; |
| 411e1bfb | 13447 | |
| 3a71aa26 AM |
13448 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13449 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13450 | if (retval == 0) |
| 411e1bfb AM |
13451 | return FALSE; |
| 13452 | ||
| 13453 | if (toc_tls) | |
| 13454 | { | |
| 951fd09b | 13455 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13456 | if (r_type == R_PPC64_TOC16_DS |
| 13457 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13458 | { |
| 13459 | if (tls_mask != 0 | |
| 13460 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13461 | goto toctprel; | |
| 13462 | } | |
| 411e1bfb | 13463 | else |
| 951fd09b AM |
13464 | { |
| 13465 | /* If we found a GD reloc pair, then we might be | |
| 13466 | doing a GD->IE transition. */ | |
| 13467 | if (retval == 2) | |
| 13468 | { | |
| 13469 | tls_gd = TLS_TPRELGD; | |
| 13470 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13471 | goto tls_ldgd_opt; |
| 951fd09b AM |
13472 | } |
| 13473 | else if (retval == 3) | |
| 13474 | { | |
| 13475 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13476 | goto tls_ldgd_opt; |
| 951fd09b AM |
13477 | } |
| 13478 | } | |
| 411e1bfb AM |
13479 | } |
| 13480 | } | |
| 13481 | break; | |
| 13482 | ||
| 9d6ded02 AM |
13483 | case R_PPC64_GOT_TPREL16_HI: |
| 13484 | case R_PPC64_GOT_TPREL16_HA: | |
| 13485 | if (tls_mask != 0 | |
| 13486 | && (tls_mask & TLS_TPREL) == 0) | |
| 13487 | { | |
| 13488 | rel->r_offset -= d_offset; | |
| 13489 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 13490 | r_type = R_PPC64_NONE; | |
| 13491 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13492 | } | |
| 13493 | break; | |
| 13494 | ||
| 411e1bfb AM |
13495 | case R_PPC64_GOT_TPREL16_DS: |
| 13496 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13497 | if (tls_mask != 0 |
| 13498 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13499 | { |
| 81407a69 | 13500 | toctprel: |
| c316a17c AM |
13501 | insn = bfd_get_32 (output_bfd, |
| 13502 | contents + rel->r_offset - d_offset); | |
| 411e1bfb AM |
13503 | insn &= 31 << 21; |
| 13504 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| c316a17c AM |
13505 | bfd_put_32 (output_bfd, insn, |
| 13506 | contents + rel->r_offset - d_offset); | |
| 411e1bfb | 13507 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13508 | if (toc_symndx != 0) |
| 13509 | { | |
| 13510 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13511 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13512 | /* We changed the symbol. Start over in order to |
| 13513 | get h, sym, sec etc. right. */ | |
| c316a17c | 13514 | goto again; |
| 0d4792f7 AM |
13515 | } |
| 13516 | else | |
| 13517 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13518 | } |
| 13519 | break; | |
| 13520 | ||
| 13521 | case R_PPC64_TLS: | |
| 951fd09b AM |
13522 | if (tls_mask != 0 |
| 13523 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13524 | { |
| 411e1bfb | 13525 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13526 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13527 | if (insn == 0) | |
| 411e1bfb | 13528 | abort (); |
| 411e1bfb | 13529 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13530 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13531 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13532 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13533 | r_type = R_PPC64_TPREL16_LO; |
| 13534 | if (toc_symndx != 0) | |
| 13535 | { | |
| 13536 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13537 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13538 | /* We changed the symbol. Start over in order to |
| 13539 | get h, sym, sec etc. right. */ | |
| c316a17c | 13540 | goto again; |
| 0d4792f7 AM |
13541 | } |
| 13542 | else | |
| 13543 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13544 | } |
| 13545 | break; | |
| 13546 | ||
| 411e1bfb AM |
13547 | case R_PPC64_GOT_TLSGD16_HI: |
| 13548 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13549 | tls_gd = TLS_TPRELGD; |
| 13550 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13551 | goto tls_gdld_hi; | |
| 13552 | break; | |
| 13553 | ||
| 411e1bfb AM |
13554 | case R_PPC64_GOT_TLSLD16_HI: |
| 13555 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13556 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13557 | { |
| 951fd09b AM |
13558 | tls_gdld_hi: |
| 13559 | if ((tls_mask & tls_gd) != 0) | |
| 13560 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13561 | + R_PPC64_GOT_TPREL16_DS); | |
| 13562 | else | |
| 411e1bfb | 13563 | { |
| 4fe5ca5b | 13564 | rel->r_offset -= d_offset; |
| 727ac201 | 13565 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13566 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13567 | } |
| 951fd09b | 13568 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13569 | } |
| 13570 | break; | |
| 13571 | ||
| 951fd09b AM |
13572 | case R_PPC64_GOT_TLSGD16: |
| 13573 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13574 | tls_gd = TLS_TPRELGD; | |
| 13575 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13576 | goto tls_ldgd_opt; |
| 951fd09b | 13577 | break; |
| 411e1bfb | 13578 | |
| 951fd09b AM |
13579 | case R_PPC64_GOT_TLSLD16: |
| 13580 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13581 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13582 | { | |
| 3a71aa26 | 13583 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13584 | bfd_vma offset; |
| 13585 | ||
| 13586 | tls_ldgd_opt: | |
| 727fc41e AM |
13587 | offset = (bfd_vma) -1; |
| 13588 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13589 | __tls_get_addr calls, we must trust that the call | |
| 13590 | stays with its arg setup insns, ie. that the next | |
| 13591 | reloc is the __tls_get_addr call associated with | |
| 13592 | the current reloc. Edit both insns. */ | |
| 13593 | if (input_section->has_tls_get_addr_call | |
| 13594 | && rel + 1 < relend | |
| 13595 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13596 | htab->tls_get_addr, | |
| 13597 | htab->tls_get_addr_fd)) | |
| 13598 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13599 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13600 | need to keep the destination reg. It may be | |
| 13601 | something other than the usual r3, and moved to r3 | |
| 13602 | before the call by intervening code. */ | |
| 13603 | insn1 = bfd_get_32 (output_bfd, | |
| 13604 | contents + rel->r_offset - d_offset); | |
| 102890f0 | 13605 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13606 | { |
| 102890f0 | 13607 | /* IE */ |
| b86ac8e3 | 13608 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13609 | insn1 |= 58 << 26; /* ld */ |
| 13610 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13611 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13612 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13613 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13614 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13615 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13616 | else |
| 102890f0 AM |
13617 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13618 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13619 | } | |
| 13620 | else | |
| 13621 | { | |
| 13622 | /* LE */ | |
| b86ac8e3 AM |
13623 | insn1 &= 0x1f << 21; |
| 13624 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13625 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13626 | if (tls_gd == 0) | |
| 951fd09b | 13627 | { |
| 102890f0 | 13628 | /* Was an LD reloc. */ |
| 1d483afe AM |
13629 | if (toc_symndx) |
| 13630 | sec = local_sections[toc_symndx]; | |
| 13631 | for (r_symndx = 0; | |
| 13632 | r_symndx < symtab_hdr->sh_info; | |
| 13633 | r_symndx++) | |
| 13634 | if (local_sections[r_symndx] == sec) | |
| 13635 | break; | |
| 13636 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13637 | r_symndx = STN_UNDEF; |
| 102890f0 | 13638 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13639 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13640 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13641 | + sec->output_offset | |
| 13642 | + sec->output_section->vma); | |
| 951fd09b | 13643 | } |
| 102890f0 | 13644 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13645 | { |
| 13646 | r_symndx = toc_symndx; | |
| 13647 | rel->r_addend = toc_addend; | |
| 13648 | } | |
| 102890f0 AM |
13649 | r_type = R_PPC64_TPREL16_HA; |
| 13650 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13651 | if (offset != (bfd_vma) -1) |
| 13652 | { | |
| 13653 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13654 | R_PPC64_TPREL16_LO); | |
| 13655 | rel[1].r_offset = offset + d_offset; | |
| 13656 | rel[1].r_addend = rel->r_addend; | |
| 13657 | } | |
| 102890f0 | 13658 | } |
| 3a71aa26 AM |
13659 | bfd_put_32 (output_bfd, insn1, |
| 13660 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13661 | if (offset != (bfd_vma) -1) |
| 13662 | { | |
| 13663 | insn3 = bfd_get_32 (output_bfd, | |
| 13664 | contents + offset + 4); | |
| 13665 | if (insn3 == NOP | |
| 13666 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13667 | { | |
| 13668 | rel[1].r_offset += 4; | |
| 13669 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13670 | insn2 = NOP; | |
| 13671 | } | |
| 13672 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13673 | } | |
| 13674 | if ((tls_mask & tls_gd) == 0 | |
| 13675 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13676 | { | |
| 13677 | /* We changed the symbol. Start over in order | |
| 13678 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13679 | goto again; |
| 727fc41e AM |
13680 | } |
| 13681 | } | |
| 13682 | break; | |
| 13683 | ||
| 13684 | case R_PPC64_TLSGD: | |
| 13685 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13686 | { | |
| 13687 | unsigned int insn2, insn3; | |
| 13688 | bfd_vma offset = rel->r_offset; | |
| 13689 | ||
| 13690 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13691 | { | |
| 13692 | /* IE */ | |
| 13693 | r_type = R_PPC64_NONE; | |
| 13694 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13695 | } | |
| 13696 | else | |
| 13697 | { | |
| 13698 | /* LE */ | |
| 13699 | if (toc_symndx != 0) | |
| 13700 | { | |
| 13701 | r_symndx = toc_symndx; | |
| 13702 | rel->r_addend = toc_addend; | |
| 13703 | } | |
| 13704 | r_type = R_PPC64_TPREL16_LO; | |
| 13705 | rel->r_offset = offset + d_offset; | |
| 13706 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13707 | } | |
| 13708 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13709 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13710 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13711 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13712 | insn3 = bfd_get_32 (output_bfd, |
| 13713 | contents + offset + 4); | |
| 102890f0 AM |
13714 | if (insn3 == NOP |
| 13715 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13716 | { | |
| 727fc41e | 13717 | rel->r_offset += 4; |
| 3a71aa26 AM |
13718 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13719 | insn2 = NOP; | |
| 102890f0 | 13720 | } |
| 102890f0 | 13721 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13722 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13723 | goto again; |
| 411e1bfb | 13724 | } |
| 411e1bfb AM |
13725 | break; |
| 13726 | ||
| 727fc41e AM |
13727 | case R_PPC64_TLSLD: |
| 13728 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13729 | { | |
| 13730 | unsigned int insn2, insn3; | |
| 13731 | bfd_vma offset = rel->r_offset; | |
| 13732 | ||
| 13733 | if (toc_symndx) | |
| 13734 | sec = local_sections[toc_symndx]; | |
| 13735 | for (r_symndx = 0; | |
| 13736 | r_symndx < symtab_hdr->sh_info; | |
| 13737 | r_symndx++) | |
| 13738 | if (local_sections[r_symndx] == sec) | |
| 13739 | break; | |
| 13740 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13741 | r_symndx = STN_UNDEF; |
| 727fc41e | 13742 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13743 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13744 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13745 | + sec->output_offset | |
| 13746 | + sec->output_section->vma); | |
| 13747 | ||
| 13748 | r_type = R_PPC64_TPREL16_LO; | |
| 13749 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13750 | rel->r_offset = offset + d_offset; | |
| 13751 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13752 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13753 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13754 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13755 | insn3 = bfd_get_32 (output_bfd, | |
| 13756 | contents + offset + 4); | |
| 13757 | if (insn3 == NOP | |
| 13758 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13759 | { | |
| 13760 | rel->r_offset += 4; | |
| 13761 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13762 | insn2 = NOP; | |
| 13763 | } | |
| 13764 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| c316a17c | 13765 | goto again; |
| 727fc41e AM |
13766 | } |
| 13767 | break; | |
| 13768 | ||
| 411e1bfb | 13769 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13770 | if (rel + 1 < relend |
| 13771 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13772 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13773 | { |
| 951fd09b AM |
13774 | if ((tls_mask & TLS_GD) == 0) |
| 13775 | { | |
| 13776 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13777 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13778 | r_type = R_PPC64_TPREL64; | |
| 13779 | else | |
| 13780 | { | |
| 4ce794b7 | 13781 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13782 | r_type = R_PPC64_NONE; |
| 13783 | } | |
| 13784 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13785 | } | |
| 13786 | } | |
| 13787 | else | |
| 13788 | { | |
| 13789 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13790 | { |
| 4ce794b7 | 13791 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13792 | r_type = R_PPC64_NONE; |
| 951fd09b | 13793 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13794 | } |
| 411e1bfb AM |
13795 | } |
| 13796 | break; | |
| 13797 | ||
| 13798 | case R_PPC64_TPREL64: | |
| 951fd09b | 13799 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13800 | { |
| 13801 | r_type = R_PPC64_NONE; | |
| 13802 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13803 | } | |
| 13804 | break; | |
| 52a82034 AM |
13805 | |
| 13806 | case R_PPC64_REL16_HA: | |
| 13807 | /* If we are generating a non-PIC executable, edit | |
| 13808 | . 0: addis 2,12,.TOC.-0b@ha | |
| 13809 | . addi 2,2,.TOC.-0b@l | |
| 13810 | used by ELFv2 global entry points to set up r2, to | |
| 13811 | . lis 2,.TOC.@ha | |
| 13812 | . addi 2,2,.TOC.@l | |
| 13813 | if .TOC. is in range. */ | |
| 0e1862bb | 13814 | if (!bfd_link_pic (info) |
| 810d4e75 | 13815 | && !info->traditional_format |
| 52a82034 AM |
13816 | && h != NULL && &h->elf == htab->elf.hgot |
| 13817 | && rel + 1 < relend | |
| 13818 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 13819 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13820 | && rel[1].r_addend == rel->r_addend + 4 | |
| 13821 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13822 | { | |
| 13823 | unsigned int insn1, insn2; | |
| 13824 | bfd_vma offset = rel->r_offset - d_offset; | |
| 13825 | insn1 = bfd_get_32 (output_bfd, contents + offset); | |
| 13826 | insn2 = bfd_get_32 (output_bfd, contents + offset + 4); | |
| 13827 | if ((insn1 & 0xffff0000) == 0x3c4c0000 /* addis 2,12 */ | |
| 13828 | && (insn2 & 0xffff0000) == 0x38420000 /* addi 2,2 */) | |
| 13829 | { | |
| 13830 | r_type = R_PPC64_ADDR16_HA; | |
| 13831 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13832 | rel->r_addend -= d_offset; | |
| 13833 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 13834 | rel[1].r_addend -= d_offset + 4; | |
| 13835 | bfd_put_32 (output_bfd, 0x3c400000, contents + offset); | |
| 13836 | } | |
| 13837 | } | |
| 13838 | break; | |
| 411e1bfb AM |
13839 | } |
| 13840 | ||
| 13841 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13842 | insn = 0; |
| b25116a9 AM |
13843 | max_br_offset = 1 << 25; |
| 13844 | addend = rel->r_addend; | |
| bc30df16 | 13845 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13846 | switch (r_type) |
| 5bd4f169 AM |
13847 | { |
| 13848 | default: | |
| 65f38f15 | 13849 | break; |
| 5bd4f169 | 13850 | |
| 3b421ab3 AM |
13851 | case R_PPC64_TOCSAVE: |
| 13852 | if (relocation + addend == (rel->r_offset | |
| 13853 | + input_section->output_offset | |
| 13854 | + input_section->output_section->vma) | |
| 13855 | && tocsave_find (htab, NO_INSERT, | |
| 13856 | &local_syms, rel, input_bfd)) | |
| 13857 | { | |
| 13858 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13859 | if (insn == NOP | |
| 13860 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
13861 | bfd_put_32 (input_bfd, |
| 13862 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
13863 | contents + rel->r_offset); |
| 13864 | } | |
| 13865 | break; | |
| 13866 | ||
| 65f38f15 AM |
13867 | /* Branch taken prediction relocations. */ |
| 13868 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13869 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13870 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13871 | /* Fall thru. */ | |
| 65f38f15 | 13872 | |
| 86c76c7b | 13873 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13874 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13875 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13876 | insn |= bfd_get_32 (output_bfd, |
| 13877 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13878 | /* Fall thru. */ |
| 86c76c7b | 13879 | |
| b25116a9 AM |
13880 | case R_PPC64_REL14: |
| 13881 | max_br_offset = 1 << 15; | |
| 13882 | /* Fall thru. */ | |
| 5bd4f169 | 13883 | |
| 65f38f15 | 13884 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
13885 | /* Calls to functions with a different TOC, such as calls to |
| 13886 | shared objects, need to alter the TOC pointer. This is | |
| 13887 | done using a linkage stub. A REL24 branching to these | |
| 13888 | linkage stubs needs to be followed by a nop, as the nop | |
| 13889 | will be replaced with an instruction to restore the TOC | |
| 13890 | base pointer. */ | |
| 8387904d | 13891 | fdh = h; |
| b31867b6 AM |
13892 | if (h != NULL |
| 13893 | && h->oh != NULL | |
| 13894 | && h->oh->is_func_descriptor) | |
| 13895 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
13896 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 13897 | htab); | |
| 6abec6bc | 13898 | if (stub_entry != NULL |
| ad8e1ba5 | 13899 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 13900 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
13901 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 13902 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 13903 | { |
| b25116a9 | 13904 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 13905 | |
| ba8ca3e7 AM |
13906 | /* All of these stubs will modify r2, so there must be a |
| 13907 | branch and link followed by a nop. The nop is | |
| 13908 | replaced by an insn to restore r2. */ | |
| eea6121a | 13909 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 13910 | { |
| ba8ca3e7 AM |
13911 | unsigned long br; |
| 13912 | ||
| 13913 | br = bfd_get_32 (input_bfd, | |
| 13914 | contents + rel->r_offset); | |
| 13915 | if ((br & 1) != 0) | |
| 41bd81ab | 13916 | { |
| ba8ca3e7 AM |
13917 | unsigned long nop; |
| 13918 | ||
| 13919 | nop = bfd_get_32 (input_bfd, | |
| 13920 | contents + rel->r_offset + 4); | |
| 13921 | if (nop == NOP | |
| 13922 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 13923 | { |
| ba8ca3e7 AM |
13924 | if (h != NULL |
| 13925 | && (h == htab->tls_get_addr_fd | |
| 13926 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 13927 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
13928 | { |
| 13929 | /* Special stub used, leave nop alone. */ | |
| 13930 | } | |
| 13931 | else | |
| a078d95a AM |
13932 | bfd_put_32 (input_bfd, |
| 13933 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
13934 | contents + rel->r_offset + 4); |
| 13935 | can_plt_call = TRUE; | |
| a7f2871e | 13936 | } |
| 41bd81ab | 13937 | } |
| 5bd4f169 | 13938 | } |
| 721956f4 | 13939 | |
| ba8ca3e7 | 13940 | if (!can_plt_call && h != NULL) |
| 721956f4 | 13941 | { |
| ba8ca3e7 AM |
13942 | const char *name = h->elf.root.root.string; |
| 13943 | ||
| 13944 | if (*name == '.') | |
| 13945 | ++name; | |
| 13946 | ||
| 13947 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 13948 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 13949 | { |
| ba8ca3e7 AM |
13950 | /* Allow crt1 branch to go via a toc adjusting |
| 13951 | stub. Other calls that never return could do | |
| 13952 | the same, if we could detect such. */ | |
| b25116a9 | 13953 | can_plt_call = TRUE; |
| 6ab189d5 | 13954 | } |
| ba8ca3e7 AM |
13955 | } |
| 13956 | ||
| 13957 | if (!can_plt_call) | |
| 13958 | { | |
| 13959 | /* g++ as of 20130507 emits self-calls without a | |
| 13960 | following nop. This is arguably wrong since we | |
| 13961 | have conflicting information. On the one hand a | |
| 13962 | global symbol and on the other a local call | |
| 13963 | sequence, but don't error for this special case. | |
| 13964 | It isn't possible to cheaply verify we have | |
| 13965 | exactly such a call. Allow all calls to the same | |
| 13966 | section. */ | |
| 13967 | asection *code_sec = sec; | |
| 13968 | ||
| 13969 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 13970 | { |
| ba8ca3e7 AM |
13971 | bfd_vma off = (relocation + addend |
| 13972 | - sec->output_section->vma | |
| 13973 | - sec->output_offset); | |
| bc30df16 | 13974 | |
| ba8ca3e7 | 13975 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 13976 | } |
| ba8ca3e7 AM |
13977 | if (code_sec == input_section) |
| 13978 | can_plt_call = TRUE; | |
| 13979 | } | |
| 13980 | ||
| 13981 | if (!can_plt_call) | |
| 13982 | { | |
| 4805fc55 AM |
13983 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 13984 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13985 | info->callbacks->einfo | |
| 13986 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13987 | "recompile with -fPIC\n"), | |
| 13988 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 13989 | else | |
| 13990 | info->callbacks->einfo | |
| 13991 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13992 | "(-mcmodel=small toc adjust stub)\n"), | |
| 13993 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
13994 | |
| 13995 | bfd_set_error (bfd_error_bad_value); | |
| 13996 | ret = FALSE; | |
| 721956f4 AM |
13997 | } |
| 13998 | ||
| b25116a9 | 13999 | if (can_plt_call |
| 794e51c0 AM |
14000 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14001 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14002 | unresolved_reloc = FALSE; |
| 14003 | } | |
| 14004 | ||
| 6abec6bc AM |
14005 | if ((stub_entry == NULL |
| 14006 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14007 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14008 | && get_opd_info (sec) != NULL) |
| 14009 | { | |
| 14010 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14011 | bfd_vma off = (relocation + addend |
| 14012 | - sec->output_section->vma | |
| 14013 | - sec->output_offset); | |
| aef36ac1 | 14014 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14015 | if (dest != (bfd_vma) -1) |
| 14016 | { | |
| 14017 | relocation = dest; | |
| 14018 | addend = 0; | |
| bc30df16 | 14019 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14020 | } |
| 14021 | } | |
| 14022 | ||
| b25116a9 AM |
14023 | /* If the branch is out of reach we ought to have a long |
| 14024 | branch stub. */ | |
| 14025 | from = (rel->r_offset | |
| 14026 | + input_section->output_offset | |
| 14027 | + input_section->output_section->vma); | |
| 14028 | ||
| 6911b7dc AM |
14029 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14030 | ? fdh->elf.other | |
| 14031 | : sym->st_other); | |
| 14032 | ||
| 6abec6bc AM |
14033 | if (stub_entry != NULL |
| 14034 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14035 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14036 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14037 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14038 | || (relocation + addend - from + max_br_offset | |
| 14039 | < 2 * max_br_offset))) | |
| 14040 | /* Don't use the stub if this branch is in range. */ | |
| 14041 | stub_entry = NULL; | |
| b25116a9 AM |
14042 | |
| 14043 | if (stub_entry != NULL) | |
| 14044 | { | |
| 14045 | /* Munge up the value and addend so that we call the stub | |
| 14046 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14047 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14048 | ||
| 14049 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14050 | relocation += (stub_sec->output_offset | |
| 14051 | + stub_sec->output_section->vma | |
| 14052 | + stub_sec->size - htab->sfpr->size | |
| 14053 | - htab->sfpr->output_offset | |
| 14054 | - htab->sfpr->output_section->vma); | |
| 14055 | else | |
| 14056 | relocation = (stub_entry->stub_offset | |
| 14057 | + stub_sec->output_offset | |
| 14058 | + stub_sec->output_section->vma); | |
| b25116a9 | 14059 | addend = 0; |
| bc30df16 | 14060 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14061 | |
| 794e51c0 AM |
14062 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 14063 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14064 | && (ALWAYS_EMIT_R2SAVE | |
| 14065 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14066 | && rel + 1 < relend |
| 14067 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14068 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14069 | relocation += 4; | |
| b25116a9 AM |
14070 | } |
| 14071 | ||
| 14072 | if (insn != 0) | |
| 14073 | { | |
| 794e51c0 | 14074 | if (is_isa_v2) |
| 721956f4 | 14075 | { |
| b25116a9 AM |
14076 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14077 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14078 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14079 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14080 | insn |= 0x02 << 21; | |
| 14081 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14082 | insn |= 0x08 << 21; | |
| 14083 | else | |
| 14084 | break; | |
| 14085 | } | |
| 14086 | else | |
| 14087 | { | |
| 14088 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14089 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14090 | insn ^= 0x01 << 21; |
| 721956f4 | 14091 | } |
| b25116a9 AM |
14092 | |
| 14093 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 14094 | } |
| e86ce104 | 14095 | |
| 06da1e8e AM |
14096 | /* NOP out calls to undefined weak functions. |
| 14097 | We can thus call a weak function without first | |
| 14098 | checking whether the function is defined. */ | |
| b25116a9 | 14099 | else if (h != NULL |
| 039b3fef | 14100 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14101 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14102 | && r_type == R_PPC64_REL24 |
| 14103 | && relocation == 0 | |
| 4cc603a5 | 14104 | && addend == 0) |
| e86ce104 | 14105 | { |
| 06da1e8e | 14106 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14107 | goto copy_reloc; |
| e86ce104 | 14108 | } |
| 65f38f15 AM |
14109 | break; |
| 14110 | } | |
| 5bd4f169 | 14111 | |
| 65f38f15 | 14112 | /* Set `addend'. */ |
| 411e1bfb | 14113 | tls_type = 0; |
| 65f38f15 AM |
14114 | switch (r_type) |
| 14115 | { | |
| 14116 | default: | |
| 25f53a85 | 14117 | info->callbacks->einfo |
| bc30df16 | 14118 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14119 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14120 | |
| 65f38f15 | 14121 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14122 | ret = FALSE; |
| c316a17c | 14123 | goto copy_reloc; |
| 5bd4f169 | 14124 | |
| 65f38f15 | 14125 | case R_PPC64_NONE: |
| 411e1bfb | 14126 | case R_PPC64_TLS: |
| 727fc41e AM |
14127 | case R_PPC64_TLSGD: |
| 14128 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14129 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14130 | case R_PPC64_GNU_VTINHERIT: |
| 14131 | case R_PPC64_GNU_VTENTRY: | |
| c316a17c | 14132 | goto copy_reloc; |
| 5bd4f169 AM |
14133 | |
| 14134 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14135 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14136 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14137 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14138 | case R_PPC64_GOT_TLSGD16: |
| 14139 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14140 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14141 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14142 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14143 | goto dogot; |
| 14144 | ||
| 14145 | case R_PPC64_GOT_TLSLD16: | |
| 14146 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14147 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14148 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14149 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14150 | goto dogot; |
| 14151 | ||
| 14152 | case R_PPC64_GOT_TPREL16_DS: | |
| 14153 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14154 | case R_PPC64_GOT_TPREL16_HI: | |
| 14155 | case R_PPC64_GOT_TPREL16_HA: | |
| 14156 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14157 | goto dogot; | |
| 14158 | ||
| 14159 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14160 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14161 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14162 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14163 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14164 | goto dogot; | |
| 14165 | ||
| 65f38f15 AM |
14166 | case R_PPC64_GOT16: |
| 14167 | case R_PPC64_GOT16_LO: | |
| 14168 | case R_PPC64_GOT16_HI: | |
| 14169 | case R_PPC64_GOT16_HA: | |
| 14170 | case R_PPC64_GOT16_DS: | |
| 14171 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14172 | dogot: |
| 5bd4f169 AM |
14173 | { |
| 14174 | /* Relocation is to the entry for this symbol in the global | |
| 14175 | offset table. */ | |
| e717da7e | 14176 | asection *got; |
| d881513a | 14177 | bfd_vma *offp; |
| 5bd4f169 | 14178 | bfd_vma off; |
| d881513a | 14179 | unsigned long indx = 0; |
| 927be08e | 14180 | struct got_entry *ent; |
| 65f38f15 | 14181 | |
| d881513a AM |
14182 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14183 | && (h == NULL | |
| f5385ebf | 14184 | || !h->elf.def_dynamic)) |
| 927be08e | 14185 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14186 | else |
| 5bd4f169 | 14187 | { |
| 5bd4f169 | 14188 | |
| d881513a AM |
14189 | if (h != NULL) |
| 14190 | { | |
| 14191 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 0e1862bb | 14192 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), |
| 039b3fef | 14193 | &h->elf) |
| 0e1862bb | 14194 | || (bfd_link_pic (info) |
| afe397ea | 14195 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14196 | /* This is actually a static link, or it is a |
| 14197 | -Bsymbolic link and the symbol is defined | |
| 14198 | locally, or the symbol was forced to be local | |
| 14199 | because of a version file. */ | |
| 14200 | ; | |
| 14201 | else | |
| 14202 | { | |
| 14acf4dc | 14203 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14204 | indx = h->elf.dynindx; |
| d881513a AM |
14205 | unresolved_reloc = FALSE; |
| 14206 | } | |
| 039b3fef | 14207 | ent = h->elf.got.glist; |
| d881513a | 14208 | } |
| 411e1bfb | 14209 | else |
| 5bd4f169 | 14210 | { |
| d881513a AM |
14211 | if (local_got_ents == NULL) |
| 14212 | abort (); | |
| 14213 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14214 | } |
| d881513a AM |
14215 | |
| 14216 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14217 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14218 | && ent->owner == input_bfd |
| d881513a AM |
14219 | && ent->tls_type == tls_type) |
| 14220 | break; | |
| 5bd4f169 | 14221 | } |
| 411e1bfb | 14222 | |
| 927be08e AM |
14223 | if (ent == NULL) |
| 14224 | abort (); | |
| 14225 | if (ent->is_indirect) | |
| 14226 | ent = ent->got.ent; | |
| 14227 | offp = &ent->got.offset; | |
| 14228 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14229 | if (got == NULL) |
| 14230 | abort (); | |
| 14231 | ||
| 411e1bfb AM |
14232 | /* The offset must always be a multiple of 8. We use the |
| 14233 | least significant bit to record whether we have already | |
| 14234 | processed this entry. */ | |
| d881513a | 14235 | off = *offp; |
| 411e1bfb AM |
14236 | if ((off & 1) != 0) |
| 14237 | off &= ~1; | |
| 5bd4f169 AM |
14238 | else |
| 14239 | { | |
| 411e1bfb AM |
14240 | /* Generate relocs for the dynamic linker, except in |
| 14241 | the case of TLSLD where we'll use one entry per | |
| 14242 | module. */ | |
| 25f23106 AM |
14243 | asection *relgot; |
| 14244 | bfd_boolean ifunc; | |
| e717da7e | 14245 | |
| d881513a | 14246 | *offp = off | 1; |
| 25f23106 AM |
14247 | relgot = NULL; |
| 14248 | ifunc = (h != NULL | |
| 14249 | ? h->elf.type == STT_GNU_IFUNC | |
| 14250 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14251 | if (ifunc) |
| 33e44f2e | 14252 | relgot = htab->elf.irelplt; |
| 0e1862bb | 14253 | else if ((bfd_link_pic (info) || indx != 0) |
| 19e08130 AM |
14254 | && (h == NULL |
| 14255 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14256 | && !h->elf.def_dynamic) | |
| 14257 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14258 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14259 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14260 | if (relgot != NULL) |
| 5bd4f169 | 14261 | { |
| e717da7e AM |
14262 | outrel.r_offset = (got->output_section->vma |
| 14263 | + got->output_offset | |
| 411e1bfb | 14264 | + off); |
| 4cc603a5 | 14265 | outrel.r_addend = addend; |
| d881513a | 14266 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14267 | { |
| 411e1bfb | 14268 | outrel.r_addend = 0; |
| e515b051 | 14269 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14270 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14271 | { | |
| e717da7e AM |
14272 | loc = relgot->contents; |
| 14273 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14274 | * sizeof (Elf64_External_Rela)); |
| 14275 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14276 | &outrel, loc); | |
| e515b051 | 14277 | outrel.r_offset += 8; |
| 4cc603a5 | 14278 | outrel.r_addend = addend; |
| d881513a AM |
14279 | outrel.r_info |
| 14280 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14281 | } |
| 411e1bfb | 14282 | } |
| 951fd09b | 14283 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14284 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14285 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14286 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14287 | else if (indx != 0) |
| 14288 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14289 | else | |
| 81407a69 | 14290 | { |
| 25f23106 AM |
14291 | if (ifunc) |
| 14292 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14293 | else | |
| 14294 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14295 | |
| 14296 | /* Write the .got section contents for the sake | |
| 14297 | of prelink. */ | |
| e717da7e | 14298 | loc = got->contents + off; |
| 23fbd6fa JJ |
14299 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14300 | loc); | |
| 81407a69 | 14301 | } |
| 81407a69 AM |
14302 | |
| 14303 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14304 | { |
| 14305 | outrel.r_addend += relocation; | |
| 14306 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14307 | { |
| 14308 | if (htab->elf.tls_sec == NULL) | |
| 14309 | outrel.r_addend = 0; | |
| 14310 | else | |
| 14311 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14312 | } | |
| e515b051 | 14313 | } |
| e717da7e AM |
14314 | loc = relgot->contents; |
| 14315 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14316 | * sizeof (Elf64_External_Rela)); |
| 14317 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14318 | } | |
| 14319 | ||
| ad8e1ba5 | 14320 | /* Init the .got section contents here if we're not |
| 81407a69 | 14321 | emitting a reloc. */ |
| d881513a | 14322 | else |
| 411e1bfb | 14323 | { |
| 4cc603a5 | 14324 | relocation += addend; |
| 7b609f53 AM |
14325 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14326 | relocation = 1; | |
| 14327 | else if (tls_type != 0) | |
| 411e1bfb | 14328 | { |
| 989f9879 AM |
14329 | if (htab->elf.tls_sec == NULL) |
| 14330 | relocation = 0; | |
| 14331 | else | |
| 14332 | { | |
| 14333 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14334 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14335 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14336 | } | |
| 5bd4f169 | 14337 | |
| 7b609f53 AM |
14338 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14339 | { | |
| 14340 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14341 | got->contents + off + 8); |
| 7b609f53 AM |
14342 | relocation = 1; |
| 14343 | } | |
| 411e1bfb | 14344 | } |
| 7b609f53 | 14345 | |
| 411e1bfb | 14346 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14347 | got->contents + off); |
| 5bd4f169 AM |
14348 | } |
| 14349 | } | |
| 14350 | ||
| 65f38f15 AM |
14351 | if (off >= (bfd_vma) -2) |
| 14352 | abort (); | |
| 14353 | ||
| bf102f86 | 14354 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14355 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14356 | } |
| 65f38f15 AM |
14357 | break; |
| 14358 | ||
| 14359 | case R_PPC64_PLT16_HA: | |
| 14360 | case R_PPC64_PLT16_HI: | |
| 14361 | case R_PPC64_PLT16_LO: | |
| 14362 | case R_PPC64_PLT32: | |
| 14363 | case R_PPC64_PLT64: | |
| 14364 | /* Relocation is to the entry for this symbol in the | |
| 14365 | procedure linkage table. */ | |
| 14366 | ||
| 14367 | /* Resolve a PLT reloc against a local symbol directly, | |
| 14368 | without using the procedure linkage table. */ | |
| 14369 | if (h == NULL) | |
| 14370 | break; | |
| 14371 | ||
| 411e1bfb AM |
14372 | /* It's possible that we didn't make a PLT entry for this |
| 14373 | symbol. This happens when statically linking PIC code, | |
| 14374 | or when using -Bsymbolic. Go find a match if there is a | |
| 14375 | PLT entry. */ | |
| 33e44f2e | 14376 | if (htab->elf.splt != NULL) |
| 65f38f15 | 14377 | { |
| 411e1bfb | 14378 | struct plt_entry *ent; |
| 039b3fef | 14379 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
| a345bc8d AM |
14380 | if (ent->plt.offset != (bfd_vma) -1 |
| 14381 | && ent->addend == orig_rel.r_addend) | |
| 411e1bfb | 14382 | { |
| 33e44f2e AM |
14383 | relocation = (htab->elf.splt->output_section->vma |
| 14384 | + htab->elf.splt->output_offset | |
| 411e1bfb AM |
14385 | + ent->plt.offset); |
| 14386 | unresolved_reloc = FALSE; | |
| a345bc8d | 14387 | break; |
| 411e1bfb | 14388 | } |
| 65f38f15 | 14389 | } |
| 65f38f15 | 14390 | break; |
| 5bd4f169 | 14391 | |
| 0b13192e AM |
14392 | case R_PPC64_TOC: |
| 14393 | /* Relocation value is TOC base. */ | |
| 14394 | relocation = TOCstart; | |
| cf35638d | 14395 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14396 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14397 | else if (unresolved_reloc) |
| 14398 | ; | |
| 6f20ed8a AM |
14399 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14400 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14401 | else |
| 14402 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14403 | goto dodyn; |
| 0b13192e | 14404 | |
| 5bd4f169 AM |
14405 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14406 | which is the address of the start of the TOC plus 0x8000. | |
| 14407 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14408 | in this order. */ | |
| 65f38f15 AM |
14409 | case R_PPC64_TOC16: |
| 14410 | case R_PPC64_TOC16_LO: | |
| 14411 | case R_PPC64_TOC16_HI: | |
| 14412 | case R_PPC64_TOC16_DS: | |
| 14413 | case R_PPC64_TOC16_LO_DS: | |
| 14414 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14415 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14416 | break; |
| 14417 | ||
| 14418 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14419 | case R_PPC64_SECTOFF: |
| 14420 | case R_PPC64_SECTOFF_LO: | |
| 14421 | case R_PPC64_SECTOFF_HI: | |
| 14422 | case R_PPC64_SECTOFF_DS: | |
| 14423 | case R_PPC64_SECTOFF_LO_DS: | |
| 14424 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14425 | if (sec != NULL) |
| 65f38f15 | 14426 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14427 | break; |
| 14428 | ||
| 25f23106 AM |
14429 | case R_PPC64_REL16: |
| 14430 | case R_PPC64_REL16_LO: | |
| 14431 | case R_PPC64_REL16_HI: | |
| 14432 | case R_PPC64_REL16_HA: | |
| 14433 | break; | |
| 14434 | ||
| 721956f4 AM |
14435 | case R_PPC64_REL14: |
| 14436 | case R_PPC64_REL14_BRNTAKEN: | |
| 14437 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14438 | case R_PPC64_REL24: |
| 14439 | break; | |
| 14440 | ||
| 411e1bfb AM |
14441 | case R_PPC64_TPREL16: |
| 14442 | case R_PPC64_TPREL16_LO: | |
| 14443 | case R_PPC64_TPREL16_HI: | |
| 14444 | case R_PPC64_TPREL16_HA: | |
| 14445 | case R_PPC64_TPREL16_DS: | |
| 14446 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14447 | case R_PPC64_TPREL16_HIGH: |
| 14448 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14449 | case R_PPC64_TPREL16_HIGHER: |
| 14450 | case R_PPC64_TPREL16_HIGHERA: | |
| 14451 | case R_PPC64_TPREL16_HIGHEST: | |
| 14452 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14453 | if (h != NULL |
| 14454 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14455 | && h->elf.dynindx == -1) | |
| 14456 | { | |
| 14457 | /* Make this relocation against an undefined weak symbol | |
| 14458 | resolve to zero. This is really just a tweak, since | |
| 14459 | code using weak externs ought to check that they are | |
| 14460 | defined before using them. */ | |
| 14461 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14462 | ||
| 14463 | insn = bfd_get_32 (output_bfd, p); | |
| 14464 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 14465 | if (insn != 0) | |
| 14466 | bfd_put_32 (output_bfd, insn, p); | |
| 14467 | break; | |
| 14468 | } | |
| 989f9879 AM |
14469 | if (htab->elf.tls_sec != NULL) |
| 14470 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 0e1862bb | 14471 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
14472 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14473 | libs as they will result in DT_TEXTREL being set, but | |
| 14474 | support them anyway. */ | |
| 14475 | goto dodyn; | |
| 14476 | break; | |
| 14477 | ||
| 14478 | case R_PPC64_DTPREL16: | |
| 14479 | case R_PPC64_DTPREL16_LO: | |
| 14480 | case R_PPC64_DTPREL16_HI: | |
| 14481 | case R_PPC64_DTPREL16_HA: | |
| 14482 | case R_PPC64_DTPREL16_DS: | |
| 14483 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14484 | case R_PPC64_DTPREL16_HIGH: |
| 14485 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14486 | case R_PPC64_DTPREL16_HIGHER: |
| 14487 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14488 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14489 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14490 | if (htab->elf.tls_sec != NULL) |
| 14491 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14492 | break; |
| 14493 | ||
| 45965137 AM |
14494 | case R_PPC64_ADDR64_LOCAL: |
| 14495 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14496 | ? h->elf.other | |
| 14497 | : sym->st_other); | |
| 14498 | break; | |
| 14499 | ||
| e515b051 AM |
14500 | case R_PPC64_DTPMOD64: |
| 14501 | relocation = 1; | |
| 14502 | addend = 0; | |
| 14503 | goto dodyn; | |
| 14504 | ||
| 411e1bfb | 14505 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14506 | if (htab->elf.tls_sec != NULL) |
| 14507 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14508 | goto dodyn; |
| 14509 | ||
| 14510 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14511 | if (htab->elf.tls_sec != NULL) |
| 14512 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14513 | /* Fall thru */ |
| 14514 | ||
| 65f38f15 AM |
14515 | /* Relocations that may need to be propagated if this is a |
| 14516 | dynamic object. */ | |
| 04c9666a | 14517 | case R_PPC64_REL30: |
| 65f38f15 AM |
14518 | case R_PPC64_REL32: |
| 14519 | case R_PPC64_REL64: | |
| 14520 | case R_PPC64_ADDR14: | |
| 14521 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14522 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14523 | case R_PPC64_ADDR16: | |
| 14524 | case R_PPC64_ADDR16_DS: | |
| 14525 | case R_PPC64_ADDR16_HA: | |
| 14526 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14527 | case R_PPC64_ADDR16_HIGH: |
| 14528 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14529 | case R_PPC64_ADDR16_HIGHER: |
| 14530 | case R_PPC64_ADDR16_HIGHERA: | |
| 14531 | case R_PPC64_ADDR16_HIGHEST: | |
| 14532 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14533 | case R_PPC64_ADDR16_LO: | |
| 14534 | case R_PPC64_ADDR16_LO_DS: | |
| 14535 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14536 | case R_PPC64_ADDR32: |
| 14537 | case R_PPC64_ADDR64: | |
| 14538 | case R_PPC64_UADDR16: | |
| 14539 | case R_PPC64_UADDR32: | |
| 14540 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14541 | dodyn: |
| 5d1634d7 | 14542 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14543 | break; |
| 14544 | ||
| 41bd81ab AM |
14545 | if (NO_OPD_RELOCS && is_opd) |
| 14546 | break; | |
| 14547 | ||
| 0e1862bb | 14548 | if ((bfd_link_pic (info) |
| 4e795f50 | 14549 | && (h == NULL |
| 039b3fef AM |
14550 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 14551 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 14552 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 14553 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 | 14554 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 14555 | && !bfd_link_pic (info) |
| 65f38f15 | 14556 | && h != NULL |
| 039b3fef | 14557 | && h->elf.dynindx != -1 |
| f5385ebf | 14558 | && !h->elf.non_got_ref |
| 25f23106 | 14559 | && !h->elf.def_regular) |
| 0e1862bb | 14560 | || (!bfd_link_pic (info) |
| 25f23106 AM |
14561 | && (h != NULL |
| 14562 | ? h->elf.type == STT_GNU_IFUNC | |
| 14563 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 14564 | { |
| b34976b6 | 14565 | bfd_boolean skip, relocate; |
| 65f38f15 | 14566 | asection *sreloc; |
| 1cf1f670 | 14567 | bfd_vma out_off; |
| 65f38f15 AM |
14568 | |
| 14569 | /* When generating a dynamic object, these relocations | |
| 14570 | are copied into the output file to be resolved at run | |
| 14571 | time. */ | |
| 14572 | ||
| b34976b6 AM |
14573 | skip = FALSE; |
| 14574 | relocate = FALSE; | |
| 65f38f15 | 14575 | |
| 1cf1f670 AM |
14576 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14577 | input_section, rel->r_offset); | |
| 14578 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14579 | skip = TRUE; |
| 1cf1f670 | 14580 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14581 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14582 | out_off += (input_section->output_section->vma |
| 14583 | + input_section->output_offset); | |
| 14584 | outrel.r_offset = out_off; | |
| 411e1bfb | 14585 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14586 | |
| 1cf1f670 AM |
14587 | /* Optimize unaligned reloc use. */ |
| 14588 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14589 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14590 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14591 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14592 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14593 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14594 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14595 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14596 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14597 | ||
| 65f38f15 | 14598 | if (skip) |
| 0bb2d96a | 14599 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14600 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14601 | && !is_opd |
| 14602 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14603 | { |
| 14604 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14605 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14606 | } | |
| 65f38f15 AM |
14607 | else |
| 14608 | { | |
| 41bd81ab AM |
14609 | /* This symbol is local, or marked to become local, |
| 14610 | or this is an opd section reloc which must point | |
| 14611 | at a local function. */ | |
| 65f38f15 | 14612 | outrel.r_addend += relocation; |
| e86ce104 | 14613 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14614 | { |
| 3fad3c7c | 14615 | if (is_opd && h != NULL) |
| afbe61cf AM |
14616 | { |
| 14617 | /* Lie about opd entries. This case occurs | |
| 14618 | when building shared libraries and we | |
| 14619 | reference a function in another shared | |
| 3fad3c7c AM |
14620 | lib. The same thing happens for a weak |
| 14621 | definition in an application that's | |
| 14622 | overridden by a strong definition in a | |
| 14623 | shared lib. (I believe this is a generic | |
| 14624 | bug in binutils handling of weak syms.) | |
| 14625 | In these cases we won't use the opd | |
| 1e2f5b6e | 14626 | entry in this lib. */ |
| b34976b6 | 14627 | unresolved_reloc = FALSE; |
| afbe61cf | 14628 | } |
| 25f23106 AM |
14629 | if (!is_opd |
| 14630 | && r_type == R_PPC64_ADDR64 | |
| 14631 | && (h != NULL | |
| 14632 | ? h->elf.type == STT_GNU_IFUNC | |
| 14633 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14634 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14635 | else | |
| 14636 | { | |
| 14637 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14638 | |
| 25f23106 AM |
14639 | /* We need to relocate .opd contents for ld.so. |
| 14640 | Prelink also wants simple and consistent rules | |
| 14641 | for relocs. This make all RELATIVE relocs have | |
| 14642 | *r_offset equal to r_addend. */ | |
| 14643 | relocate = TRUE; | |
| 14644 | } | |
| 65f38f15 AM |
14645 | } |
| 14646 | else | |
| 14647 | { | |
| 14648 | long indx = 0; | |
| 14649 | ||
| 25f23106 AM |
14650 | if (h != NULL |
| 14651 | ? h->elf.type == STT_GNU_IFUNC | |
| 14652 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14653 | { | |
| 25f53a85 | 14654 | info->callbacks->einfo |
| bc30df16 AM |
14655 | (_("%P: %H: %s for indirect " |
| 14656 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14657 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14658 | ppc64_elf_howto_table[r_type]->name, |
| 14659 | sym_name); | |
| 14660 | ret = FALSE; | |
| 14661 | } | |
| cf35638d | 14662 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14663 | ; |
| 14664 | else if (sec == NULL || sec->owner == NULL) | |
| 14665 | { | |
| 14666 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14667 | return FALSE; |
| 65f38f15 AM |
14668 | } |
| 14669 | else | |
| 14670 | { | |
| 14671 | asection *osec; | |
| 14672 | ||
| 14673 | osec = sec->output_section; | |
| 14674 | indx = elf_section_data (osec)->dynindx; | |
| 14675 | ||
| 74541ad4 AM |
14676 | if (indx == 0) |
| 14677 | { | |
| 14678 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14679 | && htab->elf.data_index_section != NULL) | |
| 14680 | osec = htab->elf.data_index_section; | |
| 14681 | else | |
| 14682 | osec = htab->elf.text_index_section; | |
| 14683 | indx = elf_section_data (osec)->dynindx; | |
| 14684 | } | |
| 14685 | BFD_ASSERT (indx != 0); | |
| 14686 | ||
| 65f38f15 AM |
14687 | /* We are turning this relocation into one |
| 14688 | against a section symbol, so subtract out | |
| 14689 | the output section's address but not the | |
| 14690 | offset of the input section in the output | |
| 14691 | section. */ | |
| 14692 | outrel.r_addend -= osec->vma; | |
| 14693 | } | |
| 14694 | ||
| 14695 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14696 | } | |
| 14697 | } | |
| 14698 | ||
| 14699 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14700 | if (h != NULL |
| 14701 | ? h->elf.type == STT_GNU_IFUNC | |
| 14702 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14703 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14704 | if (sreloc == NULL) |
| 14705 | abort (); | |
| 14706 | ||
| dfbb6ac9 AM |
14707 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14708 | >= sreloc->size) | |
| 14709 | abort (); | |
| 947216bf AM |
14710 | loc = sreloc->contents; |
| 14711 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14712 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14713 | ||
| 14714 | /* If this reloc is against an external symbol, it will | |
| 14715 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14716 | anything now. However, for the sake of prelink ensure |
| 14717 | that the section contents are a known value. */ | |
| 65f38f15 | 14718 | if (! relocate) |
| 81407a69 AM |
14719 | { |
| 14720 | unresolved_reloc = FALSE; | |
| 14721 | /* The value chosen here is quite arbitrary as ld.so | |
| 14722 | ignores section contents except for the special | |
| 14723 | case of .opd where the contents might be accessed | |
| 14724 | before relocation. Choose zero, as that won't | |
| 14725 | cause reloc overflow. */ | |
| 14726 | relocation = 0; | |
| 14727 | addend = 0; | |
| 14728 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14729 | to improve backward compatibility with older | |
| 14730 | versions of ld. */ | |
| 14731 | if (r_type == R_PPC64_ADDR64) | |
| 14732 | addend = outrel.r_addend; | |
| 14733 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14734 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14735 | addend = (input_section->output_section->vma |
| 14736 | + input_section->output_offset | |
| 14737 | + rel->r_offset); | |
| 81407a69 | 14738 | } |
| 65f38f15 | 14739 | } |
| 5bd4f169 AM |
14740 | break; |
| 14741 | ||
| 65f38f15 AM |
14742 | case R_PPC64_COPY: |
| 14743 | case R_PPC64_GLOB_DAT: | |
| 14744 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14745 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14746 | case R_PPC64_RELATIVE: |
| 14747 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14748 | files. */ | |
| ae9a127f | 14749 | /* Fall through. */ |
| 65f38f15 AM |
14750 | |
| 14751 | case R_PPC64_PLTGOT16: | |
| 14752 | case R_PPC64_PLTGOT16_DS: | |
| 14753 | case R_PPC64_PLTGOT16_HA: | |
| 14754 | case R_PPC64_PLTGOT16_HI: | |
| 14755 | case R_PPC64_PLTGOT16_LO: | |
| 14756 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14757 | case R_PPC64_PLTREL32: | |
| 14758 | case R_PPC64_PLTREL64: | |
| 14759 | /* These ones haven't been implemented yet. */ | |
| 14760 | ||
| 25f53a85 | 14761 | info->callbacks->einfo |
| bc30df16 | 14762 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14763 | input_bfd, |
| 4ce794b7 | 14764 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14765 | |
| 14766 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14767 | ret = FALSE; |
| c316a17c | 14768 | goto copy_reloc; |
| 65f38f15 | 14769 | } |
| 5bd4f169 | 14770 | |
| 67f0cbdb AM |
14771 | /* Multi-instruction sequences that access the TOC can be |
| 14772 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14773 | to nop; addi rb,r2,x; */ | |
| 14774 | switch (r_type) | |
| 14775 | { | |
| 14776 | default: | |
| 14777 | break; | |
| 14778 | ||
| 14779 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14780 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14781 | case R_PPC64_GOT_TPREL16_HI: | |
| 14782 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14783 | case R_PPC64_GOT16_HI: | |
| 14784 | case R_PPC64_TOC16_HI: | |
| 14785 | /* These relocs would only be useful if building up an | |
| 14786 | offset to later add to r2, perhaps in an indexed | |
| 14787 | addressing mode instruction. Don't try to optimize. | |
| 14788 | Unfortunately, the possibility of someone building up an | |
| 14789 | offset like this or even with the HA relocs, means that | |
| 14790 | we need to check the high insn when optimizing the low | |
| 14791 | insn. */ | |
| 14792 | break; | |
| 14793 | ||
| 14794 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14795 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14796 | case R_PPC64_GOT_TPREL16_HA: | |
| 14797 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14798 | case R_PPC64_GOT16_HA: | |
| 14799 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14800 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14801 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14802 | { |
| 14803 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14804 | bfd_put_32 (input_bfd, NOP, p); | |
| 14805 | } | |
| 67f0cbdb AM |
14806 | break; |
| 14807 | ||
| 14808 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14809 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14810 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14811 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14812 | case R_PPC64_GOT16_LO: | |
| 14813 | case R_PPC64_GOT16_LO_DS: | |
| 14814 | case R_PPC64_TOC16_LO: | |
| 14815 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14816 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14817 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14818 | { |
| 14819 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14820 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14821 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14822 | { | |
| 14823 | /* Transform addic to addi when we change reg. */ | |
| 14824 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14825 | insn |= (14u << 26) | (2 << 16); | |
| 14826 | } | |
| 14827 | else | |
| 67f0cbdb | 14828 | { |
| 98528052 AM |
14829 | insn &= ~(0x1f << 16); |
| 14830 | insn |= 2 << 16; | |
| 67f0cbdb | 14831 | } |
| 560c8763 | 14832 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14833 | } |
| 14834 | break; | |
| 14835 | } | |
| 14836 | ||
| 65f38f15 | 14837 | /* Do any further special processing. */ |
| b80eed39 | 14838 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
14839 | switch (r_type) |
| 14840 | { | |
| 14841 | default: | |
| 14842 | break; | |
| 14843 | ||
| 25f23106 | 14844 | case R_PPC64_REL16_HA: |
| f9c6b907 AM |
14845 | case R_PPC64_ADDR16_HA: |
| 14846 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14847 | case R_PPC64_ADDR16_HIGHERA: |
| 14848 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14849 | case R_PPC64_TOC16_HA: |
| 14850 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14851 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14852 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14853 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14854 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14855 | case R_PPC64_DTPREL16_HA: |
| 14856 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14857 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14858 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14859 | /* It's just possible that this symbol is a weak symbol |
| 14860 | that's not actually defined anywhere. In that case, | |
| 14861 | 'sec' would be NULL, and we should leave the symbol | |
| 14862 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14863 | if (sec == NULL) |
| 14864 | break; | |
| 14865 | /* Fall thru */ | |
| 14866 | ||
| 14867 | case R_PPC64_GOT16_HA: | |
| 14868 | case R_PPC64_PLTGOT16_HA: | |
| 14869 | case R_PPC64_PLT16_HA: | |
| 14870 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14871 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14872 | case R_PPC64_GOT_TPREL16_HA: | |
| 14873 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14874 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 14875 | Bits 0:15 are not used. */ | |
| 14876 | addend += 0x8000; | |
| 65f38f15 AM |
14877 | break; |
| 14878 | ||
| 14879 | case R_PPC64_ADDR16_DS: | |
| 14880 | case R_PPC64_ADDR16_LO_DS: | |
| 14881 | case R_PPC64_GOT16_DS: | |
| 14882 | case R_PPC64_GOT16_LO_DS: | |
| 14883 | case R_PPC64_PLT16_LO_DS: | |
| 14884 | case R_PPC64_SECTOFF_DS: | |
| 14885 | case R_PPC64_SECTOFF_LO_DS: | |
| 14886 | case R_PPC64_TOC16_DS: | |
| 14887 | case R_PPC64_TOC16_LO_DS: | |
| 14888 | case R_PPC64_PLTGOT16_DS: | |
| 14889 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
14890 | case R_PPC64_GOT_TPREL16_DS: |
| 14891 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14892 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14893 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14894 | case R_PPC64_TPREL16_DS: | |
| 14895 | case R_PPC64_TPREL16_LO_DS: | |
| 14896 | case R_PPC64_DTPREL16_DS: | |
| 14897 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
14898 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 14899 | mask = 3; | |
| 14900 | /* If this reloc is against an lq insn, then the value must be | |
| 14901 | a multiple of 16. This is somewhat of a hack, but the | |
| 14902 | "correct" way to do this by defining _DQ forms of all the | |
| 14903 | _DS relocs bloats all reloc switches in this file. It | |
| 14904 | doesn't seem to make much sense to use any of these relocs | |
| 14905 | in data, so testing the insn should be safe. */ | |
| 494dac0c | 14906 | if ((insn & (0x3f << 26)) == (56u << 26)) |
| adadcc0c AM |
14907 | mask = 15; |
| 14908 | if (((relocation + addend) & mask) != 0) | |
| 65f38f15 | 14909 | { |
| 25f53a85 | 14910 | info->callbacks->einfo |
| 8de848d8 | 14911 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 14912 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14913 | howto->name, |
| adadcc0c | 14914 | mask + 1); |
| 65f38f15 | 14915 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14916 | ret = FALSE; |
| c316a17c | 14917 | goto copy_reloc; |
| 65f38f15 AM |
14918 | } |
| 14919 | break; | |
| 5bd4f169 AM |
14920 | } |
| 14921 | ||
| 239e1f3a AM |
14922 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 14923 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 14924 | not process them. */ | |
| 65f38f15 | 14925 | if (unresolved_reloc |
| 239e1f3a | 14926 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
14927 | && h->elf.def_dynamic) |
| 14928 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 14929 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 14930 | { |
| 25f53a85 | 14931 | info->callbacks->einfo |
| bc30df16 | 14932 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 14933 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 14934 | howto->name, |
| 039b3fef | 14935 | h->elf.root.root.string); |
| b34976b6 | 14936 | ret = FALSE; |
| 9c07fe7c | 14937 | } |
| 5bd4f169 | 14938 | |
| b80eed39 AM |
14939 | /* 16-bit fields in insns mostly have signed values, but a |
| 14940 | few insns have 16-bit unsigned values. Really, we should | |
| 14941 | have different reloc types. */ | |
| 14942 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 14943 | && howto->dst_mask == 0xffff | |
| 14944 | && (input_section->flags & SEC_CODE) != 0) | |
| 14945 | { | |
| 14946 | enum complain_overflow complain = complain_overflow_signed; | |
| 14947 | ||
| 14948 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
14949 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 14950 | complain = complain_overflow_bitfield; | |
| 14951 | else if (howto->rightshift == 0 | |
| 14952 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 14953 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 14954 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 14955 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 14956 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 14957 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
14958 | complain = complain_overflow_unsigned; |
| 14959 | if (howto->complain_on_overflow != complain) | |
| 14960 | { | |
| 14961 | alt_howto = *howto; | |
| 14962 | alt_howto.complain_on_overflow = complain; | |
| 14963 | howto = &alt_howto; | |
| 14964 | } | |
| 14965 | } | |
| 14966 | ||
| 14967 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 14968 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 14969 | |
| ef60b7ff | 14970 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 14971 | { |
| bc30df16 | 14972 | char *more_info = NULL; |
| b80eed39 | 14973 | const char *reloc_name = howto->name; |
| bc30df16 AM |
14974 | |
| 14975 | if (reloc_dest != DEST_NORMAL) | |
| 14976 | { | |
| 14977 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 14978 | if (more_info != NULL) | |
| 14979 | { | |
| 14980 | strcpy (more_info, reloc_name); | |
| 14981 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 14982 | ? " (OPD)" : " (stub)")); | |
| 14983 | reloc_name = more_info; | |
| 14984 | } | |
| 14985 | } | |
| 14986 | ||
| cd27b276 | 14987 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 14988 | { |
| 8131c122 AM |
14989 | /* On code like "if (foo) foo();" don't report overflow |
| 14990 | on a branch to zero when foo is undefined. */ | |
| 14991 | if (!warned | |
| 14992 | && (reloc_dest == DEST_STUB | |
| 14993 | || !(h != NULL | |
| 14994 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 14995 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 14996 | && is_branch_reloc (r_type)))) | |
| 5bd4f169 | 14997 | { |
| 8131c122 AM |
14998 | if (!((*info->callbacks->reloc_overflow) |
| 14999 | (info, &h->elf.root, sym_name, | |
| 15000 | reloc_name, orig_rel.r_addend, | |
| 15001 | input_bfd, input_section, rel->r_offset))) | |
| 15002 | return FALSE; | |
| 5bd4f169 | 15003 | } |
| ef60b7ff AM |
15004 | } |
| 15005 | else | |
| 15006 | { | |
| 25f53a85 | 15007 | info->callbacks->einfo |
| bc30df16 | 15008 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 15009 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15010 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15011 | ret = FALSE; |
| ef60b7ff | 15012 | } |
| bc30df16 AM |
15013 | if (more_info != NULL) |
| 15014 | free (more_info); | |
| 5bd4f169 | 15015 | } |
| c316a17c AM |
15016 | copy_reloc: |
| 15017 | if (wrel != rel) | |
| 15018 | *wrel = *rel; | |
| 15019 | } | |
| 15020 | ||
| 15021 | if (wrel != rel) | |
| 15022 | { | |
| 15023 | Elf_Internal_Shdr *rel_hdr; | |
| 15024 | size_t deleted = rel - wrel; | |
| 15025 | ||
| 15026 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15027 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15028 | if (rel_hdr->sh_size == 0) | |
| 15029 | { | |
| 15030 | /* It is too late to remove an empty reloc section. Leave | |
| 15031 | one NONE reloc. | |
| 15032 | ??? What is wrong with an empty section??? */ | |
| 15033 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15034 | deleted -= 1; | |
| 15035 | } | |
| 15036 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15037 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15038 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15039 | } |
| 15040 | ||
| 645ea6a9 AM |
15041 | /* If we're emitting relocations, then shortly after this function |
| 15042 | returns, reloc offsets and addends for this section will be | |
| 15043 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15044 | file rather than the input. Save a copy of the relocs for |
| 15045 | opd_entry_value. */ | |
| 0e1862bb | 15046 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15047 | { |
| 15048 | bfd_size_type amt; | |
| 15049 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15050 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15051 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15052 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15053 | if (rel == NULL) |
| 15054 | return FALSE; | |
| 15055 | memcpy (rel, relocs, amt); | |
| 15056 | } | |
| 5bd4f169 AM |
15057 | return ret; |
| 15058 | } | |
| 15059 | ||
| 754021d0 AM |
15060 | /* Adjust the value of any local symbols in opd sections. */ |
| 15061 | ||
| 6e0b88f1 | 15062 | static int |
| 754021d0 AM |
15063 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15064 | const char *name ATTRIBUTE_UNUSED, | |
| 15065 | Elf_Internal_Sym *elfsym, | |
| 15066 | asection *input_sec, | |
| 15067 | struct elf_link_hash_entry *h) | |
| 15068 | { | |
| 74f0fb50 AM |
15069 | struct _opd_sec_data *opd; |
| 15070 | long adjust; | |
| 754021d0 AM |
15071 | bfd_vma value; |
| 15072 | ||
| 4025353c | 15073 | if (h != NULL) |
| 6e0b88f1 | 15074 | return 1; |
| 4025353c | 15075 | |
| 74f0fb50 AM |
15076 | opd = get_opd_info (input_sec); |
| 15077 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15078 | return 1; |
| 754021d0 AM |
15079 | |
| 15080 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15081 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15082 | value -= input_sec->output_section->vma; |
| 15083 | ||
| 51aecdc5 | 15084 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15085 | if (adjust == -1) |
| 6e0b88f1 AM |
15086 | return 2; |
| 15087 | ||
| 15088 | elfsym->st_value += adjust; | |
| 15089 | return 1; | |
| 754021d0 AM |
15090 | } |
| 15091 | ||
| 5bd4f169 AM |
15092 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15093 | dynamic sections here. */ | |
| 15094 | ||
| b34976b6 | 15095 | static bfd_boolean |
| 4ce794b7 AM |
15096 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15097 | struct bfd_link_info *info, | |
| 15098 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 15099 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 15100 | { |
| 65f38f15 | 15101 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15102 | struct plt_entry *ent; |
| 15103 | Elf_Internal_Rela rela; | |
| 15104 | bfd_byte *loc; | |
| 5bd4f169 | 15105 | |
| 65f38f15 | 15106 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15107 | if (htab == NULL) |
| 15108 | return FALSE; | |
| 5bd4f169 | 15109 | |
| 8387904d AM |
15110 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15111 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15112 | { | |
| 15113 | /* This symbol has an entry in the procedure linkage | |
| 15114 | table. Set it up. */ | |
| e054468f AM |
15115 | if (!htab->elf.dynamic_sections_created |
| 15116 | || h->dynindx == -1) | |
| 15117 | { | |
| 15118 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15119 | && h->def_regular | |
| 15120 | && (h->root.type == bfd_link_hash_defined | |
| 15121 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15122 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15123 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15124 | + ent->plt.offset); |
| ee67d69a AM |
15125 | if (htab->opd_abi) |
| 15126 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15127 | else | |
| 15128 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15129 | rela.r_addend = (h->root.u.def.value |
| 15130 | + h->root.u.def.section->output_offset | |
| 15131 | + h->root.u.def.section->output_section->vma | |
| 15132 | + ent->addend); | |
| 33e44f2e AM |
15133 | loc = (htab->elf.irelplt->contents |
| 15134 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15135 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
15136 | } |
| 15137 | else | |
| 15138 | { | |
| 33e44f2e AM |
15139 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15140 | + htab->elf.splt->output_offset | |
| 25f23106 | 15141 | + ent->plt.offset); |
| e054468f AM |
15142 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15143 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15144 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15145 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15146 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 15147 | } |
| 8387904d | 15148 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15149 | |
| 15150 | if (!htab->opd_abi) | |
| 15151 | { | |
| 15152 | if (!h->def_regular) | |
| 15153 | { | |
| 15154 | /* Mark the symbol as undefined, rather than as | |
| 15155 | defined in glink. Leave the value if there were | |
| 15156 | any relocations where pointer equality matters | |
| 15157 | (this is a clue for the dynamic linker, to make | |
| 15158 | function pointer comparisons work between an | |
| 15159 | application and shared library), otherwise set it | |
| 15160 | to zero. */ | |
| 15161 | sym->st_shndx = SHN_UNDEF; | |
| 15162 | if (!h->pointer_equality_needed) | |
| 15163 | sym->st_value = 0; | |
| 15164 | else if (!h->ref_regular_nonweak) | |
| 15165 | { | |
| 15166 | /* This breaks function pointer comparisons, but | |
| 15167 | that is better than breaking tests for a NULL | |
| 15168 | function pointer. */ | |
| 15169 | sym->st_value = 0; | |
| 15170 | } | |
| 15171 | } | |
| 15172 | } | |
| 8387904d | 15173 | } |
| 5bd4f169 | 15174 | |
| f5385ebf | 15175 | if (h->needs_copy) |
| 5bd4f169 | 15176 | { |
| 65f38f15 | 15177 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15178 | |
| 65f38f15 AM |
15179 | if (h->dynindx == -1 |
| 15180 | || (h->root.type != bfd_link_hash_defined | |
| 15181 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15182 | || htab->relbss == NULL) |
| 65f38f15 | 15183 | abort (); |
| 5bd4f169 AM |
15184 | |
| 15185 | rela.r_offset = (h->root.u.def.value | |
| 15186 | + h->root.u.def.section->output_section->vma | |
| 15187 | + h->root.u.def.section->output_offset); | |
| 15188 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15189 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15190 | loc = htab->relbss->contents; |
| 15191 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15192 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15193 | } |
| 15194 | ||
| b34976b6 | 15195 | return TRUE; |
| 5bd4f169 AM |
15196 | } |
| 15197 | ||
| 65f38f15 AM |
15198 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15199 | dynamic linker, before writing them out. */ | |
| 15200 | ||
| 15201 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15202 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15203 | const asection *rel_sec, | |
| 15204 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15205 | { |
| 04c9666a | 15206 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15207 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15208 | ||
| 33e44f2e | 15209 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15210 | return reloc_class_ifunc; |
| a33d1f77 | 15211 | |
| 4ce794b7 | 15212 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15213 | switch (r_type) |
| 65f38f15 AM |
15214 | { |
| 15215 | case R_PPC64_RELATIVE: | |
| 15216 | return reloc_class_relative; | |
| 15217 | case R_PPC64_JMP_SLOT: | |
| 15218 | return reloc_class_plt; | |
| 15219 | case R_PPC64_COPY: | |
| 15220 | return reloc_class_copy; | |
| 15221 | default: | |
| 15222 | return reloc_class_normal; | |
| 15223 | } | |
| 15224 | } | |
| 15225 | ||
| 5bd4f169 AM |
15226 | /* Finish up the dynamic sections. */ |
| 15227 | ||
| b34976b6 | 15228 | static bfd_boolean |
| 4ce794b7 AM |
15229 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15230 | struct bfd_link_info *info) | |
| 5bd4f169 | 15231 | { |
| 65f38f15 AM |
15232 | struct ppc_link_hash_table *htab; |
| 15233 | bfd *dynobj; | |
| 5bd4f169 | 15234 | asection *sdyn; |
| 5bd4f169 | 15235 | |
| 65f38f15 | 15236 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15237 | if (htab == NULL) |
| 15238 | return FALSE; | |
| 15239 | ||
| 65f38f15 | 15240 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15241 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15242 | |
| 65f38f15 | 15243 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15244 | { |
| 5bd4f169 AM |
15245 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15246 | ||
| 33e44f2e | 15247 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15248 | abort (); |
| 5bd4f169 AM |
15249 | |
| 15250 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15251 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15252 | for (; dyncon < dynconend; dyncon++) |
| 15253 | { | |
| 15254 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15255 | asection *s; |
| 5bd4f169 AM |
15256 | |
| 15257 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15258 | ||
| 15259 | switch (dyn.d_tag) | |
| 15260 | { | |
| 65f38f15 AM |
15261 | default: |
| 15262 | continue; | |
| 5bd4f169 | 15263 | |
| 5d1634d7 | 15264 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15265 | s = htab->glink; |
| 6348e046 | 15266 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15267 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15268 | of glink rather than the first entry point, which is | |
| 15269 | what ld.so needs, and now have a bigger stub to | |
| 15270 | support automatic multiple TOCs. */ | |
| b9e5796b | 15271 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15272 | break; |
| 15273 | ||
| 19397422 AM |
15274 | case DT_PPC64_OPD: |
| 15275 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15276 | if (s == NULL) |
| 15277 | continue; | |
| 15278 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15279 | break; |
| 15280 | ||
| e8910a83 AM |
15281 | case DT_PPC64_OPT: |
| 15282 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15283 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15284 | break; | |
| 15285 | ||
| 19397422 AM |
15286 | case DT_PPC64_OPDSZ: |
| 15287 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15288 | if (s == NULL) |
| 15289 | continue; | |
| eea6121a | 15290 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15291 | break; |
| 15292 | ||
| 65f38f15 | 15293 | case DT_PLTGOT: |
| 33e44f2e | 15294 | s = htab->elf.splt; |
| 6348e046 | 15295 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15296 | break; |
| 15297 | ||
| 15298 | case DT_JMPREL: | |
| 33e44f2e | 15299 | s = htab->elf.srelplt; |
| 6348e046 | 15300 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15301 | break; |
| 5bd4f169 | 15302 | |
| 65f38f15 | 15303 | case DT_PLTRELSZ: |
| 33e44f2e | 15304 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 AM |
15305 | break; |
| 15306 | ||
| 15307 | case DT_RELASZ: | |
| 15308 | /* Don't count procedure linkage table relocs in the | |
| 15309 | overall reloc count. */ | |
| 33e44f2e | 15310 | s = htab->elf.srelplt; |
| 6348e046 AM |
15311 | if (s == NULL) |
| 15312 | continue; | |
| eea6121a | 15313 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
15314 | break; |
| 15315 | ||
| 15316 | case DT_RELA: | |
| 15317 | /* We may not be using the standard ELF linker script. | |
| 15318 | If .rela.plt is the first .rela section, we adjust | |
| 15319 | DT_RELA to not include it. */ | |
| 33e44f2e | 15320 | s = htab->elf.srelplt; |
| 6348e046 AM |
15321 | if (s == NULL) |
| 15322 | continue; | |
| 15323 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 15324 | continue; | |
| eea6121a | 15325 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 15326 | break; |
| 5bd4f169 | 15327 | } |
| 5bd4f169 | 15328 | |
| 65f38f15 | 15329 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15330 | } |
| 5bd4f169 AM |
15331 | } |
| 15332 | ||
| 33e44f2e | 15333 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15334 | { |
| 15335 | /* Fill in the first entry in the global offset table. | |
| 15336 | We use it to hold the link-time TOCbase. */ | |
| 15337 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15338 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15339 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15340 | |
| 15341 | /* Set .got entry size. */ | |
| 33e44f2e | 15342 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15343 | } |
| 15344 | ||
| 33e44f2e | 15345 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15346 | { |
| 15347 | /* Set .plt entry size. */ | |
| 33e44f2e | 15348 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15349 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15350 | } |
| 15351 | ||
| 84f5d08e AM |
15352 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15353 | brlt ourselves if emitrelocations. */ | |
| 15354 | if (htab->brlt != NULL | |
| 15355 | && htab->brlt->reloc_count != 0 | |
| 15356 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15357 | htab->brlt, | |
| d4730f92 | 15358 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15359 | elf_section_data (htab->brlt)->relocs, |
| 15360 | NULL)) | |
| 15361 | return FALSE; | |
| 15362 | ||
| 176a0d42 AM |
15363 | if (htab->glink != NULL |
| 15364 | && htab->glink->reloc_count != 0 | |
| 15365 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15366 | htab->glink, | |
| d4730f92 | 15367 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15368 | elf_section_data (htab->glink)->relocs, |
| 15369 | NULL)) | |
| 15370 | return FALSE; | |
| 15371 | ||
| 58d180e8 | 15372 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15373 | && htab->glink_eh_frame->size != 0) |
| 15374 | { | |
| 15375 | bfd_vma val; | |
| 15376 | bfd_byte *p; | |
| 15377 | asection *stub_sec; | |
| 15378 | ||
| 15379 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15380 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15381 | stub_sec != NULL; | |
| 15382 | stub_sec = stub_sec->next) | |
| 15383 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15384 | { | |
| 15385 | /* FDE length. */ | |
| 15386 | p += 4; | |
| 15387 | /* CIE pointer. */ | |
| 15388 | p += 4; | |
| 15389 | /* Offset to stub section. */ | |
| 15390 | val = (stub_sec->output_section->vma | |
| 15391 | + stub_sec->output_offset); | |
| 15392 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15393 | + htab->glink_eh_frame->output_offset | |
| 15394 | + (p - htab->glink_eh_frame->contents)); | |
| 15395 | if (val + 0x80000000 > 0xffffffff) | |
| 15396 | { | |
| 15397 | info->callbacks->einfo | |
| 15398 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15399 | stub_sec->name); | |
| 15400 | return FALSE; | |
| 15401 | } | |
| 15402 | bfd_put_32 (dynobj, val, p); | |
| 15403 | p += 4; | |
| 15404 | /* stub section size. */ | |
| 15405 | p += 4; | |
| 15406 | /* Augmentation. */ | |
| 15407 | p += 1; | |
| 15408 | /* Pad. */ | |
| 15409 | p += 7; | |
| 15410 | } | |
| 15411 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15412 | { | |
| 15413 | /* FDE length. */ | |
| 15414 | p += 4; | |
| 15415 | /* CIE pointer. */ | |
| 15416 | p += 4; | |
| 15417 | /* Offset to .glink. */ | |
| 15418 | val = (htab->glink->output_section->vma | |
| 15419 | + htab->glink->output_offset | |
| 15420 | + 8); | |
| 15421 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15422 | + htab->glink_eh_frame->output_offset | |
| 15423 | + (p - htab->glink_eh_frame->contents)); | |
| 15424 | if (val + 0x80000000 > 0xffffffff) | |
| 15425 | { | |
| 15426 | info->callbacks->einfo | |
| 15427 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15428 | htab->glink->name); | |
| 15429 | return FALSE; | |
| 15430 | } | |
| 15431 | bfd_put_32 (dynobj, val, p); | |
| 15432 | p += 4; | |
| 15433 | /* .glink size. */ | |
| 15434 | p += 4; | |
| 15435 | /* Augmentation. */ | |
| 15436 | p += 1; | |
| 15437 | /* Ops. */ | |
| 15438 | p += 7; | |
| 15439 | } | |
| 15440 | ||
| 15441 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15442 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15443 | htab->glink_eh_frame, | |
| 15444 | htab->glink_eh_frame->contents)) | |
| 15445 | return FALSE; | |
| 15446 | } | |
| 58d180e8 | 15447 | |
| e717da7e | 15448 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15449 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15450 | bfd. */ | |
| c72f2fb2 | 15451 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15452 | { |
| 15453 | asection *s; | |
| 7b53ace3 | 15454 | |
| 0c8d6e5c | 15455 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15456 | continue; |
| 15457 | ||
| e717da7e AM |
15458 | s = ppc64_elf_tdata (dynobj)->got; |
| 15459 | if (s != NULL | |
| eea6121a | 15460 | && s->size != 0 |
| e717da7e AM |
15461 | && s->output_section != bfd_abs_section_ptr |
| 15462 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15463 | s->contents, s->output_offset, | |
| eea6121a | 15464 | s->size)) |
| e717da7e AM |
15465 | return FALSE; |
| 15466 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15467 | if (s != NULL | |
| eea6121a | 15468 | && s->size != 0 |
| e717da7e AM |
15469 | && s->output_section != bfd_abs_section_ptr |
| 15470 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15471 | s->contents, s->output_offset, | |
| eea6121a | 15472 | s->size)) |
| e717da7e AM |
15473 | return FALSE; |
| 15474 | } | |
| f6c52c13 | 15475 | |
| b34976b6 | 15476 | return TRUE; |
| 5bd4f169 AM |
15477 | } |
| 15478 | ||
| 5bd4f169 | 15479 | #include "elf64-target.h" |
| 7b8e7dad AM |
15480 | |
| 15481 | /* FreeBSD support */ | |
| 15482 | ||
| 15483 | #undef TARGET_LITTLE_SYM | |
| 15484 | #undef TARGET_LITTLE_NAME | |
| 15485 | ||
| 15486 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15487 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15488 | #undef TARGET_BIG_NAME |
| 15489 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15490 | ||
| 15491 | #undef ELF_OSABI | |
| 15492 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15493 | ||
| 15494 | #undef elf64_bed | |
| 15495 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15496 | ||
| 15497 | #include "elf64-target.h" | |
| 15498 |