projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 6f2750fe | 2 | Copyright (C) 1999-2016 Free Software Foundation, Inc. |
| 5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 4 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 5 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 6 | |
| ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 8 | |
| ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 12 | (at your option) any later version. |
| 5bd4f169 | 13 | |
| ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| 5bd4f169 | 18 | |
| 4ce794b7 AM |
19 | You should have received a copy of the GNU General Public License along |
| 20 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 21 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 22 | |
| cd123cb7 | 23 | |
| 4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
| 25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 27 | |
| 3db64b00 | 28 | #include "sysdep.h" |
| 183e98be | 29 | #include <stdarg.h> |
| 5bd4f169 | 30 | #include "bfd.h" |
| 5bd4f169 AM |
31 | #include "bfdlink.h" |
| 32 | #include "libbfd.h" | |
| 33 | #include "elf-bfd.h" | |
| 04c9666a | 34 | #include "elf/ppc64.h" |
| 5d1634d7 | 35 | #include "elf64-ppc.h" |
| 58d180e8 | 36 | #include "dwarf2.h" |
| 5bd4f169 | 37 | |
| 805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
40 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 54 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 55 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 56 | static bfd_vma opd_entry_value |
| aef36ac1 | 57 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 58 | |
| 6d00b590 | 59 | #define TARGET_LITTLE_SYM powerpc_elf64_le_vec |
| ad8e1ba5 | 60 | #define TARGET_LITTLE_NAME "elf64-powerpcle" |
| 6d00b590 | 61 | #define TARGET_BIG_SYM powerpc_elf64_vec |
| ad8e1ba5 AM |
62 | #define TARGET_BIG_NAME "elf64-powerpc" |
| 63 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 64 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
65 | #define ELF_MACHINE_CODE EM_PPC64 |
| 66 | #define ELF_MAXPAGESIZE 0x10000 | |
| 04c6a44c | 67 | #define ELF_COMMONPAGESIZE 0x10000 |
| ad8e1ba5 AM |
68 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 69 | ||
| 70 | #define elf_backend_want_got_sym 0 | |
| 71 | #define elf_backend_want_plt_sym 0 | |
| 72 | #define elf_backend_plt_alignment 3 | |
| 73 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 74 | #define elf_backend_got_header_size 8 |
| ad8e1ba5 AM |
75 | #define elf_backend_can_gc_sections 1 |
| 76 | #define elf_backend_can_refcount 1 | |
| 77 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 78 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 79 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 80 | |
| e717da7e | 81 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 82 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 83 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
84 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 85 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
86 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 87 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 88 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 89 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| ad8e1ba5 AM |
90 | |
| 91 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
92 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 93 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 94 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| ad8e1ba5 AM |
95 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
| 96 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
| 555cd476 | 97 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 98 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 99 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 100 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 101 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| 74f0fb50 | 102 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 103 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 AM |
104 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| 105 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
| 106 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
| 107 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 108 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
109 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 110 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 111 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 112 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 113 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
114 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 115 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 116 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 117 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 118 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 119 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 120 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| ad8e1ba5 | 121 | |
| 5bd4f169 AM |
122 | /* The name of the dynamic interpreter. This is put in the .interp |
| 123 | section. */ | |
| 124 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 125 | ||
| 126 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 127 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
128 | |
| 129 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 130 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 131 | |
| a078d95a AM |
132 | /* Offsets to some stack save slots. */ |
| 133 | #define STK_LR 16 | |
| 134 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 135 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
136 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 137 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 138 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 139 | ||
| 5bd4f169 | 140 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 141 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
142 | /* TOC base alignment. */ |
| 143 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
144 | |
| 145 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 146 | #define TP_OFFSET 0x7000 | |
| 147 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 148 | |
| ad8e1ba5 AM |
149 | /* .plt call stub instructions. The normal stub is like this, but |
| 150 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 151 | insert an addi to adjust r11. */ |
| a078d95a | 152 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
153 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 154 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 155 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 156 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 157 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
158 | #define BCTR 0x4e800420 /* bctr */ |
| 159 | ||
| 71a39c98 | 160 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
161 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 162 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 163 | ||
| 71a39c98 AM |
164 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 165 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 166 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
167 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 168 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 169 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 170 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 171 | ||
| 71a39c98 | 172 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
173 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 174 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 175 | ||
| a078d95a | 176 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 006589cf AM |
177 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ |
| 178 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 179 | |
| 006589cf AM |
180 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 181 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ | |
| 182 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d AM |
183 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 184 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 185 | ||
| ee4bf8d2 | 186 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 187 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
188 | /* 0: */ |
| 189 | /* .quad plt0-1f */ | |
| 190 | /* __glink: */ | |
| 191 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 192 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 193 | /* 1: */ | |
| 194 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 195 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 196 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
197 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 198 | /* ld %12,0(%11) */ | |
| 199 | /* ld %2,8(%11) */ | |
| 200 | /* mtctr %12 */ | |
| 201 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 202 | /* bctr */ |
| b9e5796b AM |
203 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 204 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 205 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 206 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 207 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
208 | |
| 209 | /* Pad with this. */ | |
| 210 | #define NOP 0x60000000 | |
| 211 | ||
| 721956f4 AM |
212 | /* Some other nops. */ |
| 213 | #define CROR_151515 0x4def7b82 | |
| 214 | #define CROR_313131 0x4ffffb82 | |
| 215 | ||
| cedb70c5 | 216 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
217 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 218 | #define B_DOT 0x48000000 /* b . */ | |
| 219 | ||
| 220 | /* After that, we need two instructions to load the index, followed by | |
| 221 | a branch. */ | |
| 222 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 223 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 224 | |
| deb0e272 AM |
225 | /* Instructions used by the save and restore reg functions. */ |
| 226 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 227 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 228 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 229 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
230 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 231 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
232 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 233 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 234 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 235 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
236 | #define BLR 0x4e800020 /* blr */ |
| 237 | ||
| 41bd81ab AM |
238 | /* Since .opd is an array of descriptors and each entry will end up |
| 239 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 240 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 241 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
242 | #ifndef NO_OPD_RELOCS |
| 243 | #define NO_OPD_RELOCS 0 | |
| 244 | #endif | |
| 810d4e75 | 245 | |
| a4b6fadd AM |
246 | #ifndef ARRAY_SIZE |
| 247 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 248 | #endif | |
| 249 | ||
| 810d4e75 AM |
250 | static inline int |
| 251 | abiversion (bfd *abfd) | |
| 252 | { | |
| 253 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 254 | } | |
| 255 | ||
| 256 | static inline void | |
| 257 | set_abiversion (bfd *abfd, int ver) | |
| 258 | { | |
| 259 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 260 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 261 | } | |
| 5bd4f169 | 262 | \f |
| f5e87a1d | 263 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 264 | |
| 5bd4f169 | 265 | /* Relocation HOWTO's. */ |
| 04c9666a | 266 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
267 | |
| 268 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 269 | /* This reloc does nothing. */ | |
| 270 | HOWTO (R_PPC64_NONE, /* type */ | |
| 271 | 0, /* rightshift */ | |
| 6346d5ca AM |
272 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 273 | 0, /* bitsize */ | |
| b34976b6 | 274 | FALSE, /* pc_relative */ |
| 5bd4f169 | 275 | 0, /* bitpos */ |
| f5e87a1d | 276 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
277 | bfd_elf_generic_reloc, /* special_function */ |
| 278 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 279 | FALSE, /* partial_inplace */ |
| d006db6c | 280 | 0, /* src_mask */ |
| 5bd4f169 | 281 | 0, /* dst_mask */ |
| b34976b6 | 282 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
283 | |
| 284 | /* A standard 32 bit relocation. */ | |
| 285 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 286 | 0, /* rightshift */ | |
| 287 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 288 | 32, /* bitsize */ | |
| b34976b6 | 289 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
290 | 0, /* bitpos */ |
| 291 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 292 | bfd_elf_generic_reloc, /* special_function */ | |
| 293 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 294 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
295 | 0, /* src_mask */ |
| 296 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 297 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
298 | |
| 299 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 300 | FIXME: we don't check that, we just clear them. */ | |
| 301 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 302 | 0, /* rightshift */ | |
| 303 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 304 | 26, /* bitsize */ | |
| b34976b6 | 305 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
306 | 0, /* bitpos */ |
| 307 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 308 | bfd_elf_generic_reloc, /* special_function */ | |
| 309 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 310 | FALSE, /* partial_inplace */ |
| d006db6c | 311 | 0, /* src_mask */ |
| f5e87a1d | 312 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 313 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
314 | |
| 315 | /* A standard 16 bit relocation. */ | |
| 316 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 317 | 0, /* rightshift */ | |
| 318 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 319 | 16, /* bitsize */ | |
| b34976b6 | 320 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
321 | 0, /* bitpos */ |
| 322 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 323 | bfd_elf_generic_reloc, /* special_function */ | |
| 324 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 325 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
326 | 0, /* src_mask */ |
| 327 | 0xffff, /* dst_mask */ | |
| b34976b6 | 328 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
329 | |
| 330 | /* A 16 bit relocation without overflow. */ | |
| 331 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 332 | 0, /* rightshift */ | |
| 333 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 334 | 16, /* bitsize */ | |
| b34976b6 | 335 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
336 | 0, /* bitpos */ |
| 337 | complain_overflow_dont,/* complain_on_overflow */ | |
| 338 | bfd_elf_generic_reloc, /* special_function */ | |
| 339 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 340 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
341 | 0, /* src_mask */ |
| 342 | 0xffff, /* dst_mask */ | |
| b34976b6 | 343 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
344 | |
| 345 | /* Bits 16-31 of an address. */ | |
| 346 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 347 | 16, /* rightshift */ | |
| 348 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 349 | 16, /* bitsize */ | |
| b34976b6 | 350 | FALSE, /* pc_relative */ |
| 5bd4f169 | 351 | 0, /* bitpos */ |
| f9c6b907 | 352 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
353 | bfd_elf_generic_reloc, /* special_function */ |
| 354 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 355 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
356 | 0, /* src_mask */ |
| 357 | 0xffff, /* dst_mask */ | |
| b34976b6 | 358 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
359 | |
| 360 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 361 | bits, treated as a signed number, is negative. */ | |
| 362 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 363 | 16, /* rightshift */ | |
| 364 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 365 | 16, /* bitsize */ | |
| b34976b6 | 366 | FALSE, /* pc_relative */ |
| 5bd4f169 | 367 | 0, /* bitpos */ |
| f9c6b907 | 368 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 369 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 370 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 371 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
372 | 0, /* src_mask */ |
| 373 | 0xffff, /* dst_mask */ | |
| b34976b6 | 374 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
375 | |
| 376 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 377 | FIXME: we don't check that, we just clear them. */ | |
| 378 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 379 | 0, /* rightshift */ | |
| 380 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 381 | 16, /* bitsize */ | |
| b34976b6 | 382 | FALSE, /* pc_relative */ |
| 5bd4f169 | 383 | 0, /* bitpos */ |
| b80eed39 | 384 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 385 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 386 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 387 | FALSE, /* partial_inplace */ |
| d006db6c | 388 | 0, /* src_mask */ |
| f5e87a1d | 389 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 390 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
391 | |
| 392 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 393 | indicate that the branch is expected to be taken. The lower two | |
| 394 | bits must be zero. */ | |
| 395 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 396 | 0, /* rightshift */ | |
| 397 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 398 | 16, /* bitsize */ | |
| b34976b6 | 399 | FALSE, /* pc_relative */ |
| 5bd4f169 | 400 | 0, /* bitpos */ |
| b80eed39 | 401 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 402 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 403 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 404 | FALSE, /* partial_inplace */ |
| d006db6c | 405 | 0, /* src_mask */ |
| f5e87a1d | 406 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 407 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
408 | |
| 409 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 410 | indicate that the branch is not expected to be taken. The lower | |
| 411 | two bits must be zero. */ | |
| 412 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 413 | 0, /* rightshift */ | |
| 414 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 415 | 16, /* bitsize */ | |
| b34976b6 | 416 | FALSE, /* pc_relative */ |
| 5bd4f169 | 417 | 0, /* bitpos */ |
| b80eed39 | 418 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 419 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 420 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 421 | FALSE, /* partial_inplace */ |
| d006db6c | 422 | 0, /* src_mask */ |
| f5e87a1d | 423 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 424 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
425 | |
| 426 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 427 | HOWTO (R_PPC64_REL24, /* type */ | |
| 428 | 0, /* rightshift */ | |
| 429 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 430 | 26, /* bitsize */ | |
| b34976b6 | 431 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
432 | 0, /* bitpos */ |
| 433 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 434 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 435 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 436 | FALSE, /* partial_inplace */ |
| d006db6c | 437 | 0, /* src_mask */ |
| f5e87a1d | 438 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 439 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
440 | |
| 441 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 442 | HOWTO (R_PPC64_REL14, /* type */ | |
| 443 | 0, /* rightshift */ | |
| 444 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 445 | 16, /* bitsize */ | |
| b34976b6 | 446 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
447 | 0, /* bitpos */ |
| 448 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 449 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 450 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 451 | FALSE, /* partial_inplace */ |
| d006db6c | 452 | 0, /* src_mask */ |
| f5e87a1d | 453 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 454 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
455 | |
| 456 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 457 | the branch is expected to be taken. The lower two bits must be | |
| 458 | zero. */ | |
| 459 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 460 | 0, /* rightshift */ | |
| 461 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 462 | 16, /* bitsize */ | |
| b34976b6 | 463 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
464 | 0, /* bitpos */ |
| 465 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 466 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 467 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 468 | FALSE, /* partial_inplace */ |
| d006db6c | 469 | 0, /* src_mask */ |
| f5e87a1d | 470 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 471 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
472 | |
| 473 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 474 | the branch is not expected to be taken. The lower two bits must | |
| 475 | be zero. */ | |
| 476 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 477 | 0, /* rightshift */ | |
| 478 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 479 | 16, /* bitsize */ | |
| b34976b6 | 480 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
481 | 0, /* bitpos */ |
| 482 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 483 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 484 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 485 | FALSE, /* partial_inplace */ |
| d006db6c | 486 | 0, /* src_mask */ |
| f5e87a1d | 487 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 488 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
489 | |
| 490 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 491 | symbol. */ | |
| 492 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 493 | 0, /* rightshift */ | |
| 494 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 495 | 16, /* bitsize */ | |
| b34976b6 | 496 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
497 | 0, /* bitpos */ |
| 498 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 499 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 500 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 501 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
502 | 0, /* src_mask */ |
| 503 | 0xffff, /* dst_mask */ | |
| b34976b6 | 504 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
505 | |
| 506 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 507 | the symbol. */ | |
| 508 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 509 | 0, /* rightshift */ | |
| 510 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 511 | 16, /* bitsize */ | |
| b34976b6 | 512 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
513 | 0, /* bitpos */ |
| 514 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 515 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 516 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 517 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
518 | 0, /* src_mask */ |
| 519 | 0xffff, /* dst_mask */ | |
| b34976b6 | 520 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
521 | |
| 522 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 523 | the symbol. */ | |
| 524 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 525 | 16, /* rightshift */ | |
| 526 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 527 | 16, /* bitsize */ | |
| b34976b6 | 528 | FALSE, /* pc_relative */ |
| 5bd4f169 | 529 | 0, /* bitpos */ |
| f9c6b907 | 530 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 531 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 532 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 533 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
534 | 0, /* src_mask */ |
| 535 | 0xffff, /* dst_mask */ | |
| b34976b6 | 536 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
537 | |
| 538 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 539 | the symbol. */ | |
| 540 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 541 | 16, /* rightshift */ | |
| 542 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 543 | 16, /* bitsize */ | |
| b34976b6 | 544 | FALSE, /* pc_relative */ |
| 5bd4f169 | 545 | 0, /* bitpos */ |
| f9c6b907 | 546 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 547 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 548 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 549 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
550 | 0, /* src_mask */ |
| 551 | 0xffff, /* dst_mask */ | |
| b34976b6 | 552 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
553 | |
| 554 | /* This is used only by the dynamic linker. The symbol should exist | |
| 555 | both in the object being run and in some shared library. The | |
| 556 | dynamic linker copies the data addressed by the symbol from the | |
| 557 | shared library into the object, because the object being | |
| 558 | run has to have the data at some particular address. */ | |
| 559 | HOWTO (R_PPC64_COPY, /* type */ | |
| 560 | 0, /* rightshift */ | |
| f5e87a1d AM |
561 | 0, /* this one is variable size */ |
| 562 | 0, /* bitsize */ | |
| b34976b6 | 563 | FALSE, /* pc_relative */ |
| 5bd4f169 | 564 | 0, /* bitpos */ |
| f5e87a1d AM |
565 | complain_overflow_dont, /* complain_on_overflow */ |
| 566 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 567 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 568 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
569 | 0, /* src_mask */ |
| 570 | 0, /* dst_mask */ | |
| b34976b6 | 571 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
572 | |
| 573 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 574 | entries. */ | |
| 575 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 576 | 0, /* rightshift */ | |
| 577 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 578 | 64, /* bitsize */ | |
| b34976b6 | 579 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
580 | 0, /* bitpos */ |
| 581 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 582 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 583 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 584 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 585 | 0, /* src_mask */ |
| f5e87a1d | 586 | ONES (64), /* dst_mask */ |
| b34976b6 | 587 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
588 | |
| 589 | /* Created by the link editor. Marks a procedure linkage table | |
| 590 | entry for a symbol. */ | |
| 591 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 592 | 0, /* rightshift */ | |
| 593 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 594 | 0, /* bitsize */ | |
| b34976b6 | 595 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
596 | 0, /* bitpos */ |
| 597 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 598 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 599 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 600 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
601 | 0, /* src_mask */ |
| 602 | 0, /* dst_mask */ | |
| b34976b6 | 603 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
604 | |
| 605 | /* Used only by the dynamic linker. When the object is run, this | |
| 606 | doubleword64 is set to the load address of the object, plus the | |
| 607 | addend. */ | |
| 608 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 609 | 0, /* rightshift */ | |
| 610 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 611 | 64, /* bitsize */ | |
| b34976b6 | 612 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
613 | 0, /* bitpos */ |
| 614 | complain_overflow_dont, /* complain_on_overflow */ | |
| 615 | bfd_elf_generic_reloc, /* special_function */ | |
| 616 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 617 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 618 | 0, /* src_mask */ |
| f5e87a1d | 619 | ONES (64), /* dst_mask */ |
| b34976b6 | 620 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
621 | |
| 622 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 623 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 624 | 0, /* rightshift */ | |
| 625 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 626 | 32, /* bitsize */ | |
| b34976b6 | 627 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
628 | 0, /* bitpos */ |
| 629 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 630 | bfd_elf_generic_reloc, /* special_function */ | |
| 631 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 632 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
633 | 0, /* src_mask */ |
| 634 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 635 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
636 | |
| 637 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 638 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 639 | 0, /* rightshift */ | |
| 640 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 641 | 16, /* bitsize */ | |
| b34976b6 | 642 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
643 | 0, /* bitpos */ |
| 644 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 645 | bfd_elf_generic_reloc, /* special_function */ | |
| 646 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 647 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
648 | 0, /* src_mask */ |
| 649 | 0xffff, /* dst_mask */ | |
| b34976b6 | 650 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
651 | |
| 652 | /* 32-bit PC relative. */ | |
| 653 | HOWTO (R_PPC64_REL32, /* type */ | |
| 654 | 0, /* rightshift */ | |
| 655 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 656 | 32, /* bitsize */ | |
| b34976b6 | 657 | TRUE, /* pc_relative */ |
| 5bd4f169 | 658 | 0, /* bitpos */ |
| 5bd4f169 AM |
659 | complain_overflow_signed, /* complain_on_overflow */ |
| 660 | bfd_elf_generic_reloc, /* special_function */ | |
| 661 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 662 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
663 | 0, /* src_mask */ |
| 664 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 665 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 666 | |
| 10ed1bba | 667 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
668 | HOWTO (R_PPC64_PLT32, /* type */ |
| 669 | 0, /* rightshift */ | |
| 670 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 671 | 32, /* bitsize */ | |
| b34976b6 | 672 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
673 | 0, /* bitpos */ |
| 674 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 675 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 676 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 677 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 678 | 0, /* src_mask */ |
| f5e87a1d | 679 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 680 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
681 | |
| 682 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 683 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 684 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 685 | 0, /* rightshift */ | |
| 686 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 687 | 32, /* bitsize */ | |
| b34976b6 | 688 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
689 | 0, /* bitpos */ |
| 690 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 691 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 692 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 693 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 694 | 0, /* src_mask */ |
| f5e87a1d | 695 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 696 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
697 | |
| 698 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 699 | the symbol. */ | |
| 700 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 701 | 0, /* rightshift */ | |
| 702 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 703 | 16, /* bitsize */ | |
| b34976b6 | 704 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
705 | 0, /* bitpos */ |
| 706 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 707 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 708 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 709 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
710 | 0, /* src_mask */ |
| 711 | 0xffff, /* dst_mask */ | |
| b34976b6 | 712 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
713 | |
| 714 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 715 | the symbol. */ | |
| 716 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 717 | 16, /* rightshift */ | |
| 718 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 719 | 16, /* bitsize */ | |
| b34976b6 | 720 | FALSE, /* pc_relative */ |
| 5bd4f169 | 721 | 0, /* bitpos */ |
| f9c6b907 | 722 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 723 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 724 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 725 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
726 | 0, /* src_mask */ |
| 727 | 0xffff, /* dst_mask */ | |
| b34976b6 | 728 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
729 | |
| 730 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 731 | the symbol. */ | |
| 732 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 733 | 16, /* rightshift */ | |
| 734 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 735 | 16, /* bitsize */ | |
| b34976b6 | 736 | FALSE, /* pc_relative */ |
| 5bd4f169 | 737 | 0, /* bitpos */ |
| f9c6b907 | 738 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 739 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 740 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 741 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
742 | 0, /* src_mask */ |
| 743 | 0xffff, /* dst_mask */ | |
| b34976b6 | 744 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 745 | |
| c061c2d8 | 746 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
747 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 748 | 0, /* rightshift */ | |
| c061c2d8 AM |
749 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 750 | 16, /* bitsize */ | |
| b34976b6 | 751 | FALSE, /* pc_relative */ |
| 5bd4f169 | 752 | 0, /* bitpos */ |
| b80eed39 | 753 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 754 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 755 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 756 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 757 | 0, /* src_mask */ |
| c061c2d8 | 758 | 0xffff, /* dst_mask */ |
| b34976b6 | 759 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 760 | |
| c061c2d8 | 761 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
762 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 763 | 0, /* rightshift */ | |
| 764 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 765 | 16, /* bitsize */ | |
| b34976b6 | 766 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
767 | 0, /* bitpos */ |
| 768 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 769 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 770 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 771 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
772 | 0, /* src_mask */ |
| 773 | 0xffff, /* dst_mask */ | |
| b34976b6 | 774 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
775 | |
| 776 | /* 16-bit upper half section relative relocation. */ | |
| 777 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 778 | 16, /* rightshift */ | |
| 779 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 780 | 16, /* bitsize */ | |
| b34976b6 | 781 | FALSE, /* pc_relative */ |
| 5bd4f169 | 782 | 0, /* bitpos */ |
| f9c6b907 | 783 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 784 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 785 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 786 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
787 | 0, /* src_mask */ |
| 788 | 0xffff, /* dst_mask */ | |
| b34976b6 | 789 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
790 | |
| 791 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 792 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 793 | 16, /* rightshift */ | |
| 794 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 795 | 16, /* bitsize */ | |
| b34976b6 | 796 | FALSE, /* pc_relative */ |
| 5bd4f169 | 797 | 0, /* bitpos */ |
| f9c6b907 | 798 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 799 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 800 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 801 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
802 | 0, /* src_mask */ |
| 803 | 0xffff, /* dst_mask */ | |
| b34976b6 | 804 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 805 | |
| 04c9666a AM |
806 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 807 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
808 | 2, /* rightshift */ |
| 809 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 810 | 30, /* bitsize */ | |
| b34976b6 | 811 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
812 | 0, /* bitpos */ |
| 813 | complain_overflow_dont, /* complain_on_overflow */ | |
| 814 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 815 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 816 | FALSE, /* partial_inplace */ |
| d006db6c | 817 | 0, /* src_mask */ |
| 5bd4f169 | 818 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 819 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
820 | |
| 821 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 822 | ||
| 823 | /* A standard 64-bit relocation. */ | |
| 824 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 825 | 0, /* rightshift */ | |
| 826 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 827 | 64, /* bitsize */ | |
| b34976b6 | 828 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
829 | 0, /* bitpos */ |
| 830 | complain_overflow_dont, /* complain_on_overflow */ | |
| 831 | bfd_elf_generic_reloc, /* special_function */ | |
| 832 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 833 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 834 | 0, /* src_mask */ |
| f5e87a1d | 835 | ONES (64), /* dst_mask */ |
| b34976b6 | 836 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
837 | |
| 838 | /* The bits 32-47 of an address. */ | |
| 839 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 840 | 32, /* rightshift */ | |
| 841 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 842 | 16, /* bitsize */ | |
| b34976b6 | 843 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
844 | 0, /* bitpos */ |
| 845 | complain_overflow_dont, /* complain_on_overflow */ | |
| 846 | bfd_elf_generic_reloc, /* special_function */ | |
| 847 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 848 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
849 | 0, /* src_mask */ |
| 850 | 0xffff, /* dst_mask */ | |
| b34976b6 | 851 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
852 | |
| 853 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 854 | 16 bits, treated as a signed number, is negative. */ | |
| 855 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 856 | 32, /* rightshift */ | |
| 857 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 858 | 16, /* bitsize */ | |
| b34976b6 | 859 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
860 | 0, /* bitpos */ |
| 861 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 862 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 863 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 864 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
865 | 0, /* src_mask */ |
| 866 | 0xffff, /* dst_mask */ | |
| b34976b6 | 867 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
868 | |
| 869 | /* The bits 48-63 of an address. */ | |
| 870 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 871 | 48, /* rightshift */ | |
| 872 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 873 | 16, /* bitsize */ | |
| b34976b6 | 874 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
875 | 0, /* bitpos */ |
| 876 | complain_overflow_dont, /* complain_on_overflow */ | |
| 877 | bfd_elf_generic_reloc, /* special_function */ | |
| 878 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 879 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
880 | 0, /* src_mask */ |
| 881 | 0xffff, /* dst_mask */ | |
| b34976b6 | 882 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
883 | |
| 884 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 885 | 16 bits, treated as a signed number, is negative. */ | |
| 886 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 887 | 48, /* rightshift */ | |
| 888 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 889 | 16, /* bitsize */ | |
| b34976b6 | 890 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
891 | 0, /* bitpos */ |
| 892 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 893 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 894 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 895 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
896 | 0, /* src_mask */ |
| 897 | 0xffff, /* dst_mask */ | |
| b34976b6 | 898 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
899 | |
| 900 | /* Like ADDR64, but may be unaligned. */ | |
| 901 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 902 | 0, /* rightshift */ | |
| 903 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 904 | 64, /* bitsize */ | |
| b34976b6 | 905 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
906 | 0, /* bitpos */ |
| 907 | complain_overflow_dont, /* complain_on_overflow */ | |
| 908 | bfd_elf_generic_reloc, /* special_function */ | |
| 909 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 910 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 911 | 0, /* src_mask */ |
| f5e87a1d | 912 | ONES (64), /* dst_mask */ |
| b34976b6 | 913 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
914 | |
| 915 | /* 64-bit relative relocation. */ | |
| 916 | HOWTO (R_PPC64_REL64, /* type */ | |
| 917 | 0, /* rightshift */ | |
| 918 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 919 | 64, /* bitsize */ | |
| b34976b6 | 920 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
921 | 0, /* bitpos */ |
| 922 | complain_overflow_dont, /* complain_on_overflow */ | |
| 923 | bfd_elf_generic_reloc, /* special_function */ | |
| 924 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 925 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 926 | 0, /* src_mask */ |
| f5e87a1d | 927 | ONES (64), /* dst_mask */ |
| b34976b6 | 928 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 929 | |
| cedb70c5 | 930 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
931 | HOWTO (R_PPC64_PLT64, /* type */ |
| 932 | 0, /* rightshift */ | |
| 933 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 934 | 64, /* bitsize */ | |
| b34976b6 | 935 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
936 | 0, /* bitpos */ |
| 937 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 938 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 939 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 940 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 941 | 0, /* src_mask */ |
| f5e87a1d | 942 | ONES (64), /* dst_mask */ |
| b34976b6 | 943 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
944 | |
| 945 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 946 | table. */ | |
| 947 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 948 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 949 | 0, /* rightshift */ | |
| 950 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 951 | 64, /* bitsize */ | |
| b34976b6 | 952 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
953 | 0, /* bitpos */ |
| 954 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 955 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 956 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 957 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 958 | 0, /* src_mask */ |
| f5e87a1d | 959 | ONES (64), /* dst_mask */ |
| b34976b6 | 960 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
961 | |
| 962 | /* 16 bit TOC-relative relocation. */ | |
| 963 | ||
| 964 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 965 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 966 | 0, /* rightshift */ | |
| 967 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 968 | 16, /* bitsize */ | |
| b34976b6 | 969 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
970 | 0, /* bitpos */ |
| 971 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 972 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 973 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 974 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
975 | 0, /* src_mask */ |
| 976 | 0xffff, /* dst_mask */ | |
| b34976b6 | 977 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
978 | |
| 979 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 980 | ||
| 981 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 982 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 983 | 0, /* rightshift */ | |
| 984 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 985 | 16, /* bitsize */ | |
| b34976b6 | 986 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
987 | 0, /* bitpos */ |
| 988 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 989 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 990 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 991 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
992 | 0, /* src_mask */ |
| 993 | 0xffff, /* dst_mask */ | |
| b34976b6 | 994 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
995 | |
| 996 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 997 | ||
| 998 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 999 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1000 | 16, /* rightshift */ | |
| 1001 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1002 | 16, /* bitsize */ | |
| b34976b6 | 1003 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1004 | 0, /* bitpos */ |
| f9c6b907 | 1005 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1006 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1007 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1008 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1009 | 0, /* src_mask */ |
| 1010 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1011 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1012 | |
| 1013 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1014 | contents of the low 16 bits, treated as a signed number, is | |
| 1015 | negative. */ | |
| 1016 | ||
| 1017 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1018 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1019 | 16, /* rightshift */ | |
| 1020 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1021 | 16, /* bitsize */ | |
| b34976b6 | 1022 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1023 | 0, /* bitpos */ |
| f9c6b907 | 1024 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1025 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1026 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1027 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1028 | 0, /* src_mask */ |
| 1029 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1030 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1031 | |
| 1032 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1033 | ||
| 1034 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1035 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1036 | 0, /* rightshift */ | |
| 1037 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1038 | 64, /* bitsize */ | |
| b34976b6 | 1039 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1040 | 0, /* bitpos */ |
| b80eed39 | 1041 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1042 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1043 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1044 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1045 | 0, /* src_mask */ |
| f5e87a1d | 1046 | ONES (64), /* dst_mask */ |
| b34976b6 | 1047 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1048 | |
| 1049 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1050 | value to relocate may (!) refer to a PLT entry which the link | |
| 1051 | editor (a) may replace with the symbol value. If the link editor | |
| 1052 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1053 | entry and store the address to the new PLT entry in the GOT. | |
| 1054 | This permits lazy resolution of function symbols at run time. | |
| 1055 | The link editor may also skip all of this and just (c) emit a | |
| 1056 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1057 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1058 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1059 | 0, /* rightshift */ | |
| 1060 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1061 | 16, /* bitsize */ | |
| b34976b6 | 1062 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1063 | 0, /* bitpos */ |
| 1064 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1065 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1066 | "R_PPC64_PLTGOT16", /* name */ |
| 1067 | FALSE, /* partial_inplace */ | |
| 1068 | 0, /* src_mask */ | |
| 1069 | 0xffff, /* dst_mask */ | |
| 1070 | FALSE), /* pcrel_offset */ | |
| 1071 | ||
| 1072 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1073 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1074 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1075 | 0, /* rightshift */ | |
| 1076 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1077 | 16, /* bitsize */ | |
| 1078 | FALSE, /* pc_relative */ | |
| 1079 | 0, /* bitpos */ | |
| 1080 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1081 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1082 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1083 | FALSE, /* partial_inplace */ | |
| 1084 | 0, /* src_mask */ | |
| 1085 | 0xffff, /* dst_mask */ | |
| 1086 | FALSE), /* pcrel_offset */ | |
| 1087 | ||
| 1088 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1089 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1090 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1091 | 16, /* rightshift */ | |
| 1092 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1093 | 16, /* bitsize */ | |
| 1094 | FALSE, /* pc_relative */ | |
| 1095 | 0, /* bitpos */ | |
| f9c6b907 | 1096 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1097 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1098 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1099 | FALSE, /* partial_inplace */ | |
| 1100 | 0, /* src_mask */ | |
| 1101 | 0xffff, /* dst_mask */ | |
| 1102 | FALSE), /* pcrel_offset */ | |
| 1103 | ||
| 1104 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1105 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1106 | is negative. */ | |
| 1107 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1108 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1109 | 16, /* rightshift */ | |
| 1110 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1111 | 16, /* bitsize */ | |
| 1112 | FALSE, /* pc_relative */ | |
| 1113 | 0, /* bitpos */ | |
| f9c6b907 | 1114 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1115 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1116 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1117 | FALSE, /* partial_inplace */ | |
| 1118 | 0, /* src_mask */ | |
| 1119 | 0xffff, /* dst_mask */ | |
| 1120 | FALSE), /* pcrel_offset */ | |
| 1121 | ||
| 1122 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1123 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1124 | 0, /* rightshift */ | |
| 1125 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1126 | 16, /* bitsize */ | |
| 1127 | FALSE, /* pc_relative */ | |
| 1128 | 0, /* bitpos */ | |
| b80eed39 | 1129 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1130 | bfd_elf_generic_reloc, /* special_function */ |
| 1131 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1132 | FALSE, /* partial_inplace */ | |
| 1133 | 0, /* src_mask */ | |
| 1134 | 0xfffc, /* dst_mask */ | |
| 1135 | FALSE), /* pcrel_offset */ | |
| 1136 | ||
| 1137 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1138 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1139 | 0, /* rightshift */ | |
| 1140 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1141 | 16, /* bitsize */ | |
| 1142 | FALSE, /* pc_relative */ | |
| 1143 | 0, /* bitpos */ | |
| 1144 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1145 | bfd_elf_generic_reloc, /* special_function */ | |
| 1146 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1147 | FALSE, /* partial_inplace */ | |
| 1148 | 0, /* src_mask */ | |
| 1149 | 0xfffc, /* dst_mask */ | |
| 1150 | FALSE), /* pcrel_offset */ | |
| 1151 | ||
| 1152 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1153 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1154 | 0, /* rightshift */ | |
| 1155 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1156 | 16, /* bitsize */ | |
| 1157 | FALSE, /* pc_relative */ | |
| 1158 | 0, /* bitpos */ | |
| 1159 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1160 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1161 | "R_PPC64_GOT16_DS", /* name */ | |
| 1162 | FALSE, /* partial_inplace */ | |
| 1163 | 0, /* src_mask */ | |
| 1164 | 0xfffc, /* dst_mask */ | |
| 1165 | FALSE), /* pcrel_offset */ | |
| 1166 | ||
| 1167 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1168 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1169 | 0, /* rightshift */ | |
| 1170 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1171 | 16, /* bitsize */ | |
| 1172 | FALSE, /* pc_relative */ | |
| 1173 | 0, /* bitpos */ | |
| 1174 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1175 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1176 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1177 | FALSE, /* partial_inplace */ | |
| 1178 | 0, /* src_mask */ | |
| 1179 | 0xfffc, /* dst_mask */ | |
| 1180 | FALSE), /* pcrel_offset */ | |
| 1181 | ||
| 1182 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1183 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1184 | 0, /* rightshift */ | |
| 1185 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1186 | 16, /* bitsize */ | |
| 1187 | FALSE, /* pc_relative */ | |
| 1188 | 0, /* bitpos */ | |
| 1189 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1190 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1191 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1192 | FALSE, /* partial_inplace */ | |
| 1193 | 0, /* src_mask */ | |
| 1194 | 0xfffc, /* dst_mask */ | |
| 1195 | FALSE), /* pcrel_offset */ | |
| 1196 | ||
| 1197 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1198 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1199 | 0, /* rightshift */ | |
| 1200 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1201 | 16, /* bitsize */ | |
| 1202 | FALSE, /* pc_relative */ | |
| 1203 | 0, /* bitpos */ | |
| b80eed39 | 1204 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1205 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1206 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1207 | FALSE, /* partial_inplace */ | |
| 1208 | 0, /* src_mask */ | |
| 1209 | 0xfffc, /* dst_mask */ | |
| 1210 | FALSE), /* pcrel_offset */ | |
| 1211 | ||
| 1212 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1213 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1214 | 0, /* rightshift */ | |
| 1215 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1216 | 16, /* bitsize */ | |
| 1217 | FALSE, /* pc_relative */ | |
| 1218 | 0, /* bitpos */ | |
| 1219 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1220 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1221 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1222 | FALSE, /* partial_inplace */ | |
| 1223 | 0, /* src_mask */ | |
| 1224 | 0xfffc, /* dst_mask */ | |
| 1225 | FALSE), /* pcrel_offset */ | |
| 1226 | ||
| 1227 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1228 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1229 | 0, /* rightshift */ | |
| 1230 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1231 | 16, /* bitsize */ | |
| 1232 | FALSE, /* pc_relative */ | |
| 1233 | 0, /* bitpos */ | |
| 1234 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1235 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1236 | "R_PPC64_TOC16_DS", /* name */ | |
| 1237 | FALSE, /* partial_inplace */ | |
| 1238 | 0, /* src_mask */ | |
| 1239 | 0xfffc, /* dst_mask */ | |
| 1240 | FALSE), /* pcrel_offset */ | |
| 1241 | ||
| 1242 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1243 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1244 | 0, /* rightshift */ | |
| 1245 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1246 | 16, /* bitsize */ | |
| 1247 | FALSE, /* pc_relative */ | |
| 1248 | 0, /* bitpos */ | |
| 1249 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1250 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1251 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1252 | FALSE, /* partial_inplace */ | |
| 1253 | 0, /* src_mask */ | |
| 1254 | 0xfffc, /* dst_mask */ | |
| 1255 | FALSE), /* pcrel_offset */ | |
| 1256 | ||
| 1257 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1258 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1259 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1260 | 0, /* rightshift */ |
| 1261 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1262 | 16, /* bitsize */ | |
| 1263 | FALSE, /* pc_relative */ | |
| 1264 | 0, /* bitpos */ | |
| 1265 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1266 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1267 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1268 | FALSE, /* partial_inplace */ | |
| 1269 | 0, /* src_mask */ | |
| 1270 | 0xfffc, /* dst_mask */ | |
| 1271 | FALSE), /* pcrel_offset */ | |
| 1272 | ||
| 1273 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1274 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1275 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1276 | 0, /* rightshift */ | |
| 1277 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1278 | 16, /* bitsize */ | |
| 1279 | FALSE, /* pc_relative */ | |
| 1280 | 0, /* bitpos */ | |
| 1281 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1282 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1283 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1284 | FALSE, /* partial_inplace */ | |
| 1285 | 0, /* src_mask */ | |
| 1286 | 0xfffc, /* dst_mask */ | |
| 1287 | FALSE), /* pcrel_offset */ | |
| 1288 | ||
| 727fc41e | 1289 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1290 | HOWTO (R_PPC64_TLS, |
| 1291 | 0, /* rightshift */ | |
| 1292 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1293 | 32, /* bitsize */ | |
| 1294 | FALSE, /* pc_relative */ | |
| 1295 | 0, /* bitpos */ | |
| 1296 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1297 | bfd_elf_generic_reloc, /* special_function */ | |
| 1298 | "R_PPC64_TLS", /* name */ | |
| 1299 | FALSE, /* partial_inplace */ | |
| 1300 | 0, /* src_mask */ | |
| 1301 | 0, /* dst_mask */ | |
| 1302 | FALSE), /* pcrel_offset */ | |
| 1303 | ||
| 727fc41e AM |
1304 | HOWTO (R_PPC64_TLSGD, |
| 1305 | 0, /* rightshift */ | |
| 1306 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1307 | 32, /* bitsize */ | |
| 1308 | FALSE, /* pc_relative */ | |
| 1309 | 0, /* bitpos */ | |
| 1310 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1311 | bfd_elf_generic_reloc, /* special_function */ | |
| 1312 | "R_PPC64_TLSGD", /* name */ | |
| 1313 | FALSE, /* partial_inplace */ | |
| 1314 | 0, /* src_mask */ | |
| 1315 | 0, /* dst_mask */ | |
| 1316 | FALSE), /* pcrel_offset */ | |
| 1317 | ||
| 1318 | HOWTO (R_PPC64_TLSLD, | |
| 1319 | 0, /* rightshift */ | |
| 1320 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1321 | 32, /* bitsize */ | |
| 1322 | FALSE, /* pc_relative */ | |
| 1323 | 0, /* bitpos */ | |
| 1324 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1325 | bfd_elf_generic_reloc, /* special_function */ | |
| 1326 | "R_PPC64_TLSLD", /* name */ | |
| 1327 | FALSE, /* partial_inplace */ | |
| 1328 | 0, /* src_mask */ | |
| 1329 | 0, /* dst_mask */ | |
| 1330 | FALSE), /* pcrel_offset */ | |
| 1331 | ||
| 3b421ab3 AM |
1332 | HOWTO (R_PPC64_TOCSAVE, |
| 1333 | 0, /* rightshift */ | |
| 1334 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1335 | 32, /* bitsize */ | |
| 1336 | FALSE, /* pc_relative */ | |
| 1337 | 0, /* bitpos */ | |
| 1338 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1339 | bfd_elf_generic_reloc, /* special_function */ | |
| 1340 | "R_PPC64_TOCSAVE", /* name */ | |
| 1341 | FALSE, /* partial_inplace */ | |
| 1342 | 0, /* src_mask */ | |
| 1343 | 0, /* dst_mask */ | |
| 1344 | FALSE), /* pcrel_offset */ | |
| 1345 | ||
| 411e1bfb AM |
1346 | /* Computes the load module index of the load module that contains the |
| 1347 | definition of its TLS sym. */ | |
| 1348 | HOWTO (R_PPC64_DTPMOD64, | |
| 1349 | 0, /* rightshift */ | |
| 1350 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1351 | 64, /* bitsize */ | |
| 1352 | FALSE, /* pc_relative */ | |
| 1353 | 0, /* bitpos */ | |
| 1354 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1355 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1356 | "R_PPC64_DTPMOD64", /* name */ | |
| 1357 | FALSE, /* partial_inplace */ | |
| 1358 | 0, /* src_mask */ | |
| 1359 | ONES (64), /* dst_mask */ | |
| 1360 | FALSE), /* pcrel_offset */ | |
| 1361 | ||
| 1362 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1363 | of sym+add and the base address of the thread-local storage block that | |
| 1364 | contains the definition of sym, minus 0x8000. */ | |
| 1365 | HOWTO (R_PPC64_DTPREL64, | |
| 1366 | 0, /* rightshift */ | |
| 1367 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1368 | 64, /* bitsize */ | |
| 1369 | FALSE, /* pc_relative */ | |
| 1370 | 0, /* bitpos */ | |
| 1371 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1372 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1373 | "R_PPC64_DTPREL64", /* name */ | |
| 1374 | FALSE, /* partial_inplace */ | |
| 1375 | 0, /* src_mask */ | |
| 1376 | ONES (64), /* dst_mask */ | |
| 1377 | FALSE), /* pcrel_offset */ | |
| 1378 | ||
| 1379 | /* A 16 bit dtprel reloc. */ | |
| 1380 | HOWTO (R_PPC64_DTPREL16, | |
| 1381 | 0, /* rightshift */ | |
| 1382 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1383 | 16, /* bitsize */ | |
| 1384 | FALSE, /* pc_relative */ | |
| 1385 | 0, /* bitpos */ | |
| 1386 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1387 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1388 | "R_PPC64_DTPREL16", /* name */ | |
| 1389 | FALSE, /* partial_inplace */ | |
| 1390 | 0, /* src_mask */ | |
| 1391 | 0xffff, /* dst_mask */ | |
| 1392 | FALSE), /* pcrel_offset */ | |
| 1393 | ||
| 1394 | /* Like DTPREL16, but no overflow. */ | |
| 1395 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1396 | 0, /* rightshift */ | |
| 1397 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1398 | 16, /* bitsize */ | |
| 1399 | FALSE, /* pc_relative */ | |
| 1400 | 0, /* bitpos */ | |
| 1401 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1402 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1403 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1404 | FALSE, /* partial_inplace */ | |
| 1405 | 0, /* src_mask */ | |
| 1406 | 0xffff, /* dst_mask */ | |
| 1407 | FALSE), /* pcrel_offset */ | |
| 1408 | ||
| 1409 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1410 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1411 | 16, /* rightshift */ | |
| 1412 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1413 | 16, /* bitsize */ | |
| 1414 | FALSE, /* pc_relative */ | |
| 1415 | 0, /* bitpos */ | |
| f9c6b907 | 1416 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1417 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1418 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1419 | FALSE, /* partial_inplace */ | |
| 1420 | 0, /* src_mask */ | |
| 1421 | 0xffff, /* dst_mask */ | |
| 1422 | FALSE), /* pcrel_offset */ | |
| 1423 | ||
| 1424 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1425 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1426 | 16, /* rightshift */ | |
| 1427 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1428 | 16, /* bitsize */ | |
| 1429 | FALSE, /* pc_relative */ | |
| 1430 | 0, /* bitpos */ | |
| f9c6b907 | 1431 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1432 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1433 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1434 | FALSE, /* partial_inplace */ | |
| 1435 | 0, /* src_mask */ | |
| 1436 | 0xffff, /* dst_mask */ | |
| 1437 | FALSE), /* pcrel_offset */ | |
| 1438 | ||
| 1439 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1440 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1441 | 32, /* rightshift */ | |
| 1442 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1443 | 16, /* bitsize */ | |
| 1444 | FALSE, /* pc_relative */ | |
| 1445 | 0, /* bitpos */ | |
| 1446 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1447 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1448 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1449 | FALSE, /* partial_inplace */ | |
| 1450 | 0, /* src_mask */ | |
| 1451 | 0xffff, /* dst_mask */ | |
| 1452 | FALSE), /* pcrel_offset */ | |
| 1453 | ||
| 1454 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1455 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1456 | 32, /* rightshift */ | |
| 1457 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1458 | 16, /* bitsize */ | |
| 1459 | FALSE, /* pc_relative */ | |
| 1460 | 0, /* bitpos */ | |
| 1461 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1462 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1463 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1464 | FALSE, /* partial_inplace */ | |
| 1465 | 0, /* src_mask */ | |
| 1466 | 0xffff, /* dst_mask */ | |
| 1467 | FALSE), /* pcrel_offset */ | |
| 1468 | ||
| 1469 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1470 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1471 | 48, /* rightshift */ | |
| 1472 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1473 | 16, /* bitsize */ | |
| 1474 | FALSE, /* pc_relative */ | |
| 1475 | 0, /* bitpos */ | |
| 1476 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1477 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1478 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1479 | FALSE, /* partial_inplace */ | |
| 1480 | 0, /* src_mask */ | |
| 1481 | 0xffff, /* dst_mask */ | |
| 1482 | FALSE), /* pcrel_offset */ | |
| 1483 | ||
| 1484 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1485 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1486 | 48, /* rightshift */ | |
| 1487 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1488 | 16, /* bitsize */ | |
| 1489 | FALSE, /* pc_relative */ | |
| 1490 | 0, /* bitpos */ | |
| 1491 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1492 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1493 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1494 | FALSE, /* partial_inplace */ | |
| 1495 | 0, /* src_mask */ | |
| 1496 | 0xffff, /* dst_mask */ | |
| 1497 | FALSE), /* pcrel_offset */ | |
| 1498 | ||
| 1499 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1500 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1501 | 0, /* rightshift */ | |
| 1502 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1503 | 16, /* bitsize */ | |
| 1504 | FALSE, /* pc_relative */ | |
| 1505 | 0, /* bitpos */ | |
| 1506 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1507 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1508 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1509 | FALSE, /* partial_inplace */ | |
| 1510 | 0, /* src_mask */ | |
| 1511 | 0xfffc, /* dst_mask */ | |
| 1512 | FALSE), /* pcrel_offset */ | |
| 1513 | ||
| 1514 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1515 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1516 | 0, /* rightshift */ | |
| 1517 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1518 | 16, /* bitsize */ | |
| 1519 | FALSE, /* pc_relative */ | |
| 1520 | 0, /* bitpos */ | |
| 1521 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1522 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1523 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1524 | FALSE, /* partial_inplace */ | |
| 1525 | 0, /* src_mask */ | |
| 1526 | 0xfffc, /* dst_mask */ | |
| 1527 | FALSE), /* pcrel_offset */ | |
| 1528 | ||
| 1529 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1530 | sym+add and the value of the thread pointer (r13). */ | |
| 1531 | HOWTO (R_PPC64_TPREL64, | |
| 1532 | 0, /* rightshift */ | |
| 1533 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1534 | 64, /* bitsize */ | |
| 1535 | FALSE, /* pc_relative */ | |
| 1536 | 0, /* bitpos */ | |
| 1537 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1538 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1539 | "R_PPC64_TPREL64", /* name */ | |
| 1540 | FALSE, /* partial_inplace */ | |
| 1541 | 0, /* src_mask */ | |
| 1542 | ONES (64), /* dst_mask */ | |
| 1543 | FALSE), /* pcrel_offset */ | |
| 1544 | ||
| 1545 | /* A 16 bit tprel reloc. */ | |
| 1546 | HOWTO (R_PPC64_TPREL16, | |
| 1547 | 0, /* rightshift */ | |
| 1548 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1549 | 16, /* bitsize */ | |
| 1550 | FALSE, /* pc_relative */ | |
| 1551 | 0, /* bitpos */ | |
| 1552 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1553 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1554 | "R_PPC64_TPREL16", /* name */ | |
| 1555 | FALSE, /* partial_inplace */ | |
| 1556 | 0, /* src_mask */ | |
| 1557 | 0xffff, /* dst_mask */ | |
| 1558 | FALSE), /* pcrel_offset */ | |
| 1559 | ||
| 1560 | /* Like TPREL16, but no overflow. */ | |
| 1561 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1562 | 0, /* rightshift */ | |
| 1563 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1564 | 16, /* bitsize */ | |
| 1565 | FALSE, /* pc_relative */ | |
| 1566 | 0, /* bitpos */ | |
| 1567 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1568 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1569 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1570 | FALSE, /* partial_inplace */ | |
| 1571 | 0, /* src_mask */ | |
| 1572 | 0xffff, /* dst_mask */ | |
| 1573 | FALSE), /* pcrel_offset */ | |
| 1574 | ||
| 1575 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1576 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1577 | 16, /* rightshift */ | |
| 1578 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1579 | 16, /* bitsize */ | |
| 1580 | FALSE, /* pc_relative */ | |
| 1581 | 0, /* bitpos */ | |
| f9c6b907 | 1582 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1583 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1584 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1585 | FALSE, /* partial_inplace */ | |
| 1586 | 0, /* src_mask */ | |
| 1587 | 0xffff, /* dst_mask */ | |
| 1588 | FALSE), /* pcrel_offset */ | |
| 1589 | ||
| 1590 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1591 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1592 | 16, /* rightshift */ | |
| 1593 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1594 | 16, /* bitsize */ | |
| 1595 | FALSE, /* pc_relative */ | |
| 1596 | 0, /* bitpos */ | |
| f9c6b907 | 1597 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1598 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1599 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1600 | FALSE, /* partial_inplace */ | |
| 1601 | 0, /* src_mask */ | |
| 1602 | 0xffff, /* dst_mask */ | |
| 1603 | FALSE), /* pcrel_offset */ | |
| 1604 | ||
| 1605 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1606 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1607 | 32, /* rightshift */ | |
| 1608 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1609 | 16, /* bitsize */ | |
| 1610 | FALSE, /* pc_relative */ | |
| 1611 | 0, /* bitpos */ | |
| 1612 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1613 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1614 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1615 | FALSE, /* partial_inplace */ | |
| 1616 | 0, /* src_mask */ | |
| 1617 | 0xffff, /* dst_mask */ | |
| 1618 | FALSE), /* pcrel_offset */ | |
| 1619 | ||
| 1620 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1621 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1622 | 32, /* rightshift */ | |
| 1623 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1624 | 16, /* bitsize */ | |
| 1625 | FALSE, /* pc_relative */ | |
| 1626 | 0, /* bitpos */ | |
| 1627 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1628 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1629 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1630 | FALSE, /* partial_inplace */ | |
| 1631 | 0, /* src_mask */ | |
| 1632 | 0xffff, /* dst_mask */ | |
| 1633 | FALSE), /* pcrel_offset */ | |
| 1634 | ||
| 1635 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1636 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1637 | 48, /* rightshift */ | |
| 1638 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1639 | 16, /* bitsize */ | |
| 1640 | FALSE, /* pc_relative */ | |
| 1641 | 0, /* bitpos */ | |
| 1642 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1643 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1644 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1645 | FALSE, /* partial_inplace */ | |
| 1646 | 0, /* src_mask */ | |
| 1647 | 0xffff, /* dst_mask */ | |
| 1648 | FALSE), /* pcrel_offset */ | |
| 1649 | ||
| 1650 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1651 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1652 | 48, /* rightshift */ | |
| 1653 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1654 | 16, /* bitsize */ | |
| 1655 | FALSE, /* pc_relative */ | |
| 1656 | 0, /* bitpos */ | |
| 1657 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1658 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1659 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1660 | FALSE, /* partial_inplace */ | |
| 1661 | 0, /* src_mask */ | |
| 1662 | 0xffff, /* dst_mask */ | |
| 1663 | FALSE), /* pcrel_offset */ | |
| 1664 | ||
| 1665 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1666 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1667 | 0, /* rightshift */ | |
| 1668 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1669 | 16, /* bitsize */ | |
| 1670 | FALSE, /* pc_relative */ | |
| 1671 | 0, /* bitpos */ | |
| 1672 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1673 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1674 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1675 | FALSE, /* partial_inplace */ | |
| 1676 | 0, /* src_mask */ | |
| 1677 | 0xfffc, /* dst_mask */ | |
| 1678 | FALSE), /* pcrel_offset */ | |
| 1679 | ||
| 1680 | /* Like TPREL16_DS, but no overflow. */ | |
| 1681 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1682 | 0, /* rightshift */ | |
| 1683 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1684 | 16, /* bitsize */ | |
| 1685 | FALSE, /* pc_relative */ | |
| 1686 | 0, /* bitpos */ | |
| 1687 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1688 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1689 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1690 | FALSE, /* partial_inplace */ | |
| 1691 | 0, /* src_mask */ | |
| 1692 | 0xfffc, /* dst_mask */ | |
| 1693 | FALSE), /* pcrel_offset */ | |
| 1694 | ||
| 1695 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1696 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1697 | to the first entry relative to the TOC base (r2). */ | |
| 1698 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1699 | 0, /* rightshift */ | |
| 1700 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1701 | 16, /* bitsize */ | |
| 1702 | FALSE, /* pc_relative */ | |
| 1703 | 0, /* bitpos */ | |
| 1704 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1705 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1706 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1707 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1708 | 0, /* src_mask */ |
| 1709 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1710 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1711 | |
| 411e1bfb AM |
1712 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1713 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1714 | 0, /* rightshift */ |
| 1715 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1716 | 16, /* bitsize */ | |
| b34976b6 | 1717 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1718 | 0, /* bitpos */ |
| 1719 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1720 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1721 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1722 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1723 | 0, /* src_mask */ |
| 1724 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1725 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1726 | |
| 411e1bfb AM |
1727 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1728 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1729 | 16, /* rightshift */ |
| 1730 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1731 | 16, /* bitsize */ | |
| b34976b6 | 1732 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1733 | 0, /* bitpos */ |
| f9c6b907 | 1734 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1735 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1736 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1737 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1738 | 0, /* src_mask */ |
| 1739 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1740 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1741 | |
| 411e1bfb AM |
1742 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1743 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1744 | 16, /* rightshift */ |
| 1745 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1746 | 16, /* bitsize */ | |
| b34976b6 | 1747 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1748 | 0, /* bitpos */ |
| f9c6b907 | 1749 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1750 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1751 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1752 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1753 | 0, /* src_mask */ |
| 1754 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1755 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1756 | |
| 411e1bfb AM |
1757 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1758 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1759 | first entry relative to the TOC base (r2). */ | |
| 1760 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1761 | 0, /* rightshift */ |
| 1762 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1763 | 16, /* bitsize */ | |
| b34976b6 | 1764 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1765 | 0, /* bitpos */ |
| 411e1bfb AM |
1766 | complain_overflow_signed, /* complain_on_overflow */ |
| 1767 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1768 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1769 | FALSE, /* partial_inplace */ |
| d006db6c | 1770 | 0, /* src_mask */ |
| 411e1bfb | 1771 | 0xffff, /* dst_mask */ |
| b34976b6 | 1772 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1773 | |
| 411e1bfb AM |
1774 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1775 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1776 | 0, /* rightshift */ |
| 1777 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1778 | 16, /* bitsize */ | |
| b34976b6 | 1779 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1780 | 0, /* bitpos */ |
| 411e1bfb AM |
1781 | complain_overflow_dont, /* complain_on_overflow */ |
| 1782 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1783 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1784 | FALSE, /* partial_inplace */ |
| d006db6c | 1785 | 0, /* src_mask */ |
| 411e1bfb | 1786 | 0xffff, /* dst_mask */ |
| b34976b6 | 1787 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1788 | |
| 411e1bfb AM |
1789 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1790 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1791 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1792 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1793 | 16, /* bitsize */ | |
| b34976b6 | 1794 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1795 | 0, /* bitpos */ |
| f9c6b907 | 1796 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1797 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1798 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1799 | FALSE, /* partial_inplace */ |
| d006db6c | 1800 | 0, /* src_mask */ |
| 411e1bfb | 1801 | 0xffff, /* dst_mask */ |
| b34976b6 | 1802 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1803 | |
| 411e1bfb AM |
1804 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1805 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1806 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1807 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1808 | 16, /* bitsize */ | |
| b34976b6 | 1809 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1810 | 0, /* bitpos */ |
| f9c6b907 | 1811 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1812 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1813 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1814 | FALSE, /* partial_inplace */ |
| d006db6c | 1815 | 0, /* src_mask */ |
| 411e1bfb | 1816 | 0xffff, /* dst_mask */ |
| b34976b6 | 1817 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1818 | |
| 411e1bfb AM |
1819 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1820 | the offset to the entry relative to the TOC base (r2). */ | |
| 1821 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1822 | 0, /* rightshift */ |
| 1823 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1824 | 16, /* bitsize */ | |
| b34976b6 | 1825 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1826 | 0, /* bitpos */ |
| 411e1bfb | 1827 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1828 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1829 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1830 | FALSE, /* partial_inplace */ |
| d006db6c | 1831 | 0, /* src_mask */ |
| 5bd4f169 | 1832 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1833 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1834 | |
| 411e1bfb AM |
1835 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1836 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1837 | 0, /* rightshift */ |
| c061c2d8 AM |
1838 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1839 | 16, /* bitsize */ | |
| b34976b6 | 1840 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1841 | 0, /* bitpos */ |
| 411e1bfb AM |
1842 | complain_overflow_dont, /* complain_on_overflow */ |
| 1843 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1844 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1845 | FALSE, /* partial_inplace */ |
| d006db6c | 1846 | 0, /* src_mask */ |
| c061c2d8 | 1847 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1848 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1849 | |
| 411e1bfb AM |
1850 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1851 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1852 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1853 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1854 | 16, /* bitsize */ | |
| b34976b6 | 1855 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1856 | 0, /* bitpos */ |
| f9c6b907 | 1857 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1858 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1859 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1860 | FALSE, /* partial_inplace */ |
| d006db6c | 1861 | 0, /* src_mask */ |
| 411e1bfb | 1862 | 0xffff, /* dst_mask */ |
| b34976b6 | 1863 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1864 | |
| 411e1bfb AM |
1865 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1866 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1867 | 16, /* rightshift */ | |
| 1868 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1869 | 16, /* bitsize */ | |
| 1870 | FALSE, /* pc_relative */ | |
| 1871 | 0, /* bitpos */ | |
| f9c6b907 | 1872 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1873 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1874 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1875 | FALSE, /* partial_inplace */ | |
| 1876 | 0, /* src_mask */ | |
| 1877 | 0xffff, /* dst_mask */ | |
| 1878 | FALSE), /* pcrel_offset */ | |
| 1879 | ||
| 1880 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1881 | offset to the entry relative to the TOC base (r2). */ | |
| 1882 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1883 | 0, /* rightshift */ |
| 1884 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1885 | 16, /* bitsize */ | |
| b34976b6 | 1886 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1887 | 0, /* bitpos */ |
| 1888 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1889 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1890 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1891 | FALSE, /* partial_inplace */ |
| d006db6c | 1892 | 0, /* src_mask */ |
| ad8e1ba5 | 1893 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1894 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1895 | |
| 411e1bfb AM |
1896 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1897 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1898 | 0, /* rightshift */ |
| 1899 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1900 | 16, /* bitsize */ | |
| b34976b6 | 1901 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1902 | 0, /* bitpos */ |
| 1903 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1904 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1905 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1906 | FALSE, /* partial_inplace */ |
| d006db6c | 1907 | 0, /* src_mask */ |
| ad8e1ba5 | 1908 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1909 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1910 | |
| 411e1bfb AM |
1911 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1912 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1913 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1914 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1915 | 16, /* bitsize */ | |
| b34976b6 | 1916 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1917 | 0, /* bitpos */ |
| f9c6b907 | 1918 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1919 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1920 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1921 | FALSE, /* partial_inplace */ |
| d006db6c | 1922 | 0, /* src_mask */ |
| 411e1bfb | 1923 | 0xffff, /* dst_mask */ |
| b34976b6 | 1924 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1925 | |
| 411e1bfb AM |
1926 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1927 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1928 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1929 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1930 | 16, /* bitsize */ | |
| b34976b6 | 1931 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1932 | 0, /* bitpos */ |
| f9c6b907 | 1933 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1934 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1935 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1936 | FALSE, /* partial_inplace */ |
| d006db6c | 1937 | 0, /* src_mask */ |
| 411e1bfb | 1938 | 0xffff, /* dst_mask */ |
| b34976b6 | 1939 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1940 | |
| 25f23106 AM |
1941 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1942 | 0, /* rightshift */ | |
| 1943 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1944 | 0, /* bitsize */ | |
| 1945 | FALSE, /* pc_relative */ | |
| 1946 | 0, /* bitpos */ | |
| 1947 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1948 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1949 | "R_PPC64_JMP_IREL", /* name */ | |
| 1950 | FALSE, /* partial_inplace */ | |
| 1951 | 0, /* src_mask */ | |
| 1952 | 0, /* dst_mask */ | |
| 1953 | FALSE), /* pcrel_offset */ | |
| 1954 | ||
| e054468f AM |
1955 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1956 | 0, /* rightshift */ | |
| 1957 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1958 | 64, /* bitsize */ | |
| 1959 | FALSE, /* pc_relative */ | |
| 1960 | 0, /* bitpos */ | |
| 1961 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1962 | bfd_elf_generic_reloc, /* special_function */ | |
| 1963 | "R_PPC64_IRELATIVE", /* name */ | |
| 1964 | FALSE, /* partial_inplace */ | |
| 1965 | 0, /* src_mask */ | |
| 1966 | ONES (64), /* dst_mask */ | |
| 1967 | FALSE), /* pcrel_offset */ | |
| 1968 | ||
| 25f23106 AM |
1969 | /* A 16 bit relative relocation. */ |
| 1970 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1971 | 0, /* rightshift */ | |
| 1972 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1973 | 16, /* bitsize */ | |
| 1974 | TRUE, /* pc_relative */ | |
| 1975 | 0, /* bitpos */ | |
| b80eed39 | 1976 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1977 | bfd_elf_generic_reloc, /* special_function */ |
| 1978 | "R_PPC64_REL16", /* name */ | |
| 1979 | FALSE, /* partial_inplace */ | |
| 1980 | 0, /* src_mask */ | |
| 1981 | 0xffff, /* dst_mask */ | |
| 1982 | TRUE), /* pcrel_offset */ | |
| 1983 | ||
| 1984 | /* A 16 bit relative relocation without overflow. */ | |
| 1985 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1986 | 0, /* rightshift */ | |
| 1987 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1988 | 16, /* bitsize */ | |
| 1989 | TRUE, /* pc_relative */ | |
| 1990 | 0, /* bitpos */ | |
| 1991 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1992 | bfd_elf_generic_reloc, /* special_function */ | |
| 1993 | "R_PPC64_REL16_LO", /* name */ | |
| 1994 | FALSE, /* partial_inplace */ | |
| 1995 | 0, /* src_mask */ | |
| 1996 | 0xffff, /* dst_mask */ | |
| 1997 | TRUE), /* pcrel_offset */ | |
| 1998 | ||
| 1999 | /* The high order 16 bits of a relative address. */ | |
| 2000 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2001 | 16, /* rightshift */ | |
| 2002 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2003 | 16, /* bitsize */ | |
| 2004 | TRUE, /* pc_relative */ | |
| 2005 | 0, /* bitpos */ | |
| f9c6b907 | 2006 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2007 | bfd_elf_generic_reloc, /* special_function */ |
| 2008 | "R_PPC64_REL16_HI", /* name */ | |
| 2009 | FALSE, /* partial_inplace */ | |
| 2010 | 0, /* src_mask */ | |
| 2011 | 0xffff, /* dst_mask */ | |
| 2012 | TRUE), /* pcrel_offset */ | |
| 2013 | ||
| 2014 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2015 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2016 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2017 | 16, /* rightshift */ | |
| 2018 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2019 | 16, /* bitsize */ | |
| 2020 | TRUE, /* pc_relative */ | |
| 2021 | 0, /* bitpos */ | |
| f9c6b907 | 2022 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2023 | ppc64_elf_ha_reloc, /* special_function */ |
| 2024 | "R_PPC64_REL16_HA", /* name */ | |
| 2025 | FALSE, /* partial_inplace */ | |
| 2026 | 0, /* src_mask */ | |
| 2027 | 0xffff, /* dst_mask */ | |
| 2028 | TRUE), /* pcrel_offset */ | |
| 2029 | ||
| a680de9a PB |
2030 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2031 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2032 | 16, /* rightshift */ | |
| 2033 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2034 | 16, /* bitsize */ | |
| 2035 | TRUE, /* pc_relative */ | |
| 2036 | 0, /* bitpos */ | |
| 2037 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2038 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2039 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2040 | FALSE, /* partial_inplace */ | |
| 2041 | 0, /* src_mask */ | |
| 2042 | 0x1fffc1, /* dst_mask */ | |
| 2043 | TRUE), /* pcrel_offset */ | |
| 2044 | ||
| f9c6b907 AM |
2045 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2046 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2047 | 16, /* rightshift */ | |
| 2048 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2049 | 16, /* bitsize */ | |
| 2050 | FALSE, /* pc_relative */ | |
| 2051 | 0, /* bitpos */ | |
| 2052 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2053 | bfd_elf_generic_reloc, /* special_function */ | |
| 2054 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2055 | FALSE, /* partial_inplace */ | |
| 2056 | 0, /* src_mask */ | |
| 2057 | 0xffff, /* dst_mask */ | |
| 2058 | FALSE), /* pcrel_offset */ | |
| 2059 | ||
| 2060 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2061 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2062 | 16, /* rightshift */ | |
| 2063 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2064 | 16, /* bitsize */ | |
| 2065 | FALSE, /* pc_relative */ | |
| 2066 | 0, /* bitpos */ | |
| 2067 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2068 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2069 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2070 | FALSE, /* partial_inplace */ | |
| 2071 | 0, /* src_mask */ | |
| 2072 | 0xffff, /* dst_mask */ | |
| 2073 | FALSE), /* pcrel_offset */ | |
| 2074 | ||
| 2075 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2076 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2077 | 16, /* rightshift */ | |
| 2078 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2079 | 16, /* bitsize */ | |
| 2080 | FALSE, /* pc_relative */ | |
| 2081 | 0, /* bitpos */ | |
| 2082 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2083 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2084 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2085 | FALSE, /* partial_inplace */ | |
| 2086 | 0, /* src_mask */ | |
| 2087 | 0xffff, /* dst_mask */ | |
| 2088 | FALSE), /* pcrel_offset */ | |
| 2089 | ||
| 2090 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2091 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2092 | 16, /* rightshift */ | |
| 2093 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2094 | 16, /* bitsize */ | |
| 2095 | FALSE, /* pc_relative */ | |
| 2096 | 0, /* bitpos */ | |
| 2097 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2098 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2099 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2100 | FALSE, /* partial_inplace */ | |
| 2101 | 0, /* src_mask */ | |
| 2102 | 0xffff, /* dst_mask */ | |
| 2103 | FALSE), /* pcrel_offset */ | |
| 2104 | ||
| 2105 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2106 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2107 | 16, /* rightshift */ | |
| 2108 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2109 | 16, /* bitsize */ | |
| 2110 | FALSE, /* pc_relative */ | |
| 2111 | 0, /* bitpos */ | |
| 2112 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2113 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2114 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2115 | FALSE, /* partial_inplace */ | |
| 2116 | 0, /* src_mask */ | |
| 2117 | 0xffff, /* dst_mask */ | |
| 2118 | FALSE), /* pcrel_offset */ | |
| 2119 | ||
| 2120 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2121 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2122 | 16, /* rightshift */ | |
| 2123 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2124 | 16, /* bitsize */ | |
| 2125 | FALSE, /* pc_relative */ | |
| 2126 | 0, /* bitpos */ | |
| 2127 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2128 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2129 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2130 | FALSE, /* partial_inplace */ | |
| 2131 | 0, /* src_mask */ | |
| 2132 | 0xffff, /* dst_mask */ | |
| 2133 | FALSE), /* pcrel_offset */ | |
| 2134 | ||
| 006589cf AM |
2135 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2136 | HOWTO (R_PPC64_ENTRY, | |
| 2137 | 0, /* rightshift */ | |
| 2138 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2139 | 32, /* bitsize */ | |
| 2140 | FALSE, /* pc_relative */ | |
| 2141 | 0, /* bitpos */ | |
| 2142 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2143 | bfd_elf_generic_reloc, /* special_function */ | |
| 2144 | "R_PPC64_ENTRY", /* name */ | |
| 2145 | FALSE, /* partial_inplace */ | |
| 2146 | 0, /* src_mask */ | |
| 2147 | 0, /* dst_mask */ | |
| 2148 | FALSE), /* pcrel_offset */ | |
| 2149 | ||
| 45965137 AM |
2150 | /* Like ADDR64, but use local entry point of function. */ |
| 2151 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2152 | 0, /* rightshift */ | |
| 2153 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2154 | 64, /* bitsize */ | |
| 2155 | FALSE, /* pc_relative */ | |
| 2156 | 0, /* bitpos */ | |
| 2157 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2158 | bfd_elf_generic_reloc, /* special_function */ | |
| 2159 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2160 | FALSE, /* partial_inplace */ | |
| 2161 | 0, /* src_mask */ | |
| 2162 | ONES (64), /* dst_mask */ | |
| 2163 | FALSE), /* pcrel_offset */ | |
| 2164 | ||
| 5bd4f169 AM |
2165 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2166 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2167 | 0, /* rightshift */ | |
| 2168 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2169 | 0, /* bitsize */ | |
| b34976b6 | 2170 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2171 | 0, /* bitpos */ |
| 2172 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2173 | NULL, /* special_function */ | |
| 2174 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2175 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2176 | 0, /* src_mask */ |
| 2177 | 0, /* dst_mask */ | |
| b34976b6 | 2178 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2179 | |
| 2180 | /* GNU extension to record C++ vtable member usage. */ | |
| 2181 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2182 | 0, /* rightshift */ | |
| 2183 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2184 | 0, /* bitsize */ | |
| b34976b6 | 2185 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2186 | 0, /* bitpos */ |
| 2187 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2188 | NULL, /* special_function */ | |
| 2189 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2190 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2191 | 0, /* src_mask */ |
| 2192 | 0, /* dst_mask */ | |
| b34976b6 | 2193 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2194 | }; |
| 2195 | ||
| 2196 | \f | |
| 2197 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2198 | be done. */ | |
| 2199 | ||
| 2200 | static void | |
| 4ce794b7 | 2201 | ppc_howto_init (void) |
| 5bd4f169 AM |
2202 | { |
| 2203 | unsigned int i, type; | |
| 2204 | ||
| a4b6fadd | 2205 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2206 | { |
| 2207 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2208 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2209 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2210 | } | |
| 2211 | } | |
| 2212 | ||
| 2213 | static reloc_howto_type * | |
| 4ce794b7 AM |
2214 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2215 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2216 | { |
| 411e1bfb | 2217 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2218 | |
| 2219 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2220 | /* Initialize howto table if needed. */ | |
| 2221 | ppc_howto_init (); | |
| 2222 | ||
| 4ce794b7 | 2223 | switch (code) |
| 5bd4f169 AM |
2224 | { |
| 2225 | default: | |
| 4ce794b7 | 2226 | return NULL; |
| 5bd4f169 | 2227 | |
| 411e1bfb AM |
2228 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2229 | break; | |
| 2230 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2231 | break; | |
| 2232 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2233 | break; | |
| 2234 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2235 | break; | |
| 2236 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2237 | break; | |
| 2238 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2239 | break; | |
| f9c6b907 AM |
2240 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2241 | break; | |
| 411e1bfb | 2242 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2243 | break; |
| f9c6b907 AM |
2244 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2245 | break; | |
| 411e1bfb | 2246 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2247 | break; |
| 411e1bfb | 2248 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2249 | break; |
| 411e1bfb | 2250 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2251 | break; |
| 411e1bfb | 2252 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2253 | break; |
| 411e1bfb | 2254 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2255 | break; |
| 411e1bfb | 2256 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2257 | break; |
| 411e1bfb | 2258 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2259 | break; |
| 411e1bfb | 2260 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2261 | break; |
| 411e1bfb | 2262 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2263 | break; |
| 411e1bfb | 2264 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2265 | break; |
| 411e1bfb | 2266 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2267 | break; |
| 411e1bfb | 2268 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2269 | break; |
| 411e1bfb | 2270 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2315 | break; |
| 411e1bfb | 2316 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2317 | break; |
| 411e1bfb | 2318 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2319 | break; |
| 411e1bfb | 2320 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2327 | break; |
| 411e1bfb | 2328 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2329 | break; |
| 411e1bfb | 2330 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2331 | break; |
| 411e1bfb | 2332 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2333 | break; |
| 411e1bfb | 2334 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2335 | break; |
| 411e1bfb | 2336 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2337 | break; |
| 411e1bfb | 2338 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2339 | break; |
| 411e1bfb | 2340 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2341 | break; |
| 411e1bfb | 2342 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2343 | break; |
| 411e1bfb | 2344 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2345 | break; |
| 411e1bfb | 2346 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2347 | break; |
| 411e1bfb | 2348 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2349 | break; |
| 411e1bfb | 2350 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2351 | break; |
| 727fc41e AM |
2352 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2353 | break; | |
| 2354 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2355 | break; | |
| 411e1bfb | 2356 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2357 | break; |
| 411e1bfb | 2358 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2359 | break; |
| 411e1bfb | 2360 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2361 | break; |
| 411e1bfb | 2362 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2363 | break; |
| f9c6b907 AM |
2364 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2365 | break; | |
| 411e1bfb | 2366 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2367 | break; |
| f9c6b907 AM |
2368 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2369 | break; | |
| 411e1bfb | 2370 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2371 | break; |
| 411e1bfb AM |
2372 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2373 | break; | |
| 2374 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2375 | break; | |
| 2376 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2377 | break; | |
| f9c6b907 AM |
2378 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2379 | break; | |
| 411e1bfb AM |
2380 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2381 | break; | |
| f9c6b907 AM |
2382 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2383 | break; | |
| 411e1bfb AM |
2384 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2385 | break; | |
| 2386 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2387 | break; | |
| 2388 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2389 | break; | |
| 2390 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2391 | break; | |
| 2392 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2393 | break; | |
| 2394 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2395 | break; | |
| 2396 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2397 | break; | |
| 2398 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2399 | break; | |
| 2400 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2401 | break; | |
| 2402 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2403 | break; | |
| 2404 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2405 | break; | |
| 2406 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2407 | break; | |
| 2408 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2409 | break; | |
| 2410 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2413 | break; | |
| 2414 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2415 | break; | |
| 2416 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2417 | break; | |
| 2418 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2419 | break; | |
| 2420 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2421 | break; | |
| 2422 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2423 | break; | |
| 2424 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2425 | break; | |
| 2426 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2427 | break; | |
| 2428 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2429 | break; | |
| 2430 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2431 | break; | |
| 2432 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2433 | break; | |
| 2434 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2435 | break; | |
| 2436 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2437 | break; | |
| 2438 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2439 | break; | |
| 2440 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2441 | break; | |
| 25f23106 AM |
2442 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2443 | break; | |
| 2444 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2445 | break; | |
| 2446 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2447 | break; | |
| 2448 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2449 | break; | |
| a680de9a PB |
2450 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2451 | break; | |
| 006589cf AM |
2452 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2453 | break; | |
| 45965137 AM |
2454 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2455 | break; | |
| 411e1bfb AM |
2456 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2457 | break; | |
| 2458 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2459 | break; |
| 2460 | } | |
| 2461 | ||
| 4ce794b7 | 2462 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2463 | }; |
| 2464 | ||
| 157090f7 AM |
2465 | static reloc_howto_type * |
| 2466 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2467 | const char *r_name) | |
| 2468 | { | |
| 2469 | unsigned int i; | |
| 2470 | ||
| a4b6fadd | 2471 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2472 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2473 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2474 | return &ppc64_elf_howto_raw[i]; | |
| 2475 | ||
| 2476 | return NULL; | |
| 2477 | } | |
| 2478 | ||
| 5bd4f169 AM |
2479 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2480 | ||
| 2481 | static void | |
| 4ce794b7 AM |
2482 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2483 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2484 | { |
| 65f38f15 AM |
2485 | unsigned int type; |
| 2486 | ||
| ef60b7ff | 2487 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2488 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2489 | ppc_howto_init (); |
| 2490 | ||
| 65f38f15 | 2491 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2492 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2493 | { |
| 695344c0 | 2494 | /* xgettext:c-format */ |
| 4eca0228 AM |
2495 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
| 2496 | abfd, (int) type); | |
| 3ec2b351 | 2497 | type = R_PPC64_NONE; |
| d0fb9a8d | 2498 | } |
| 65f38f15 | 2499 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2500 | } |
| 2501 | ||
| 04c9666a | 2502 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2503 | |
| 2504 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2505 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2506 | void *data, asection *input_section, | |
| 2507 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2508 | { |
| a680de9a PB |
2509 | enum elf_ppc64_reloc_type r_type; |
| 2510 | long insn; | |
| 2511 | bfd_size_type octets; | |
| 2512 | bfd_vma value; | |
| 2513 | ||
| 805fc799 AM |
2514 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2515 | call the generic function. Any adjustment will be done at final | |
| 2516 | link time. */ | |
| 2517 | if (output_bfd != NULL) | |
| cedb70c5 | 2518 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2519 | input_section, output_bfd, error_message); |
| 2520 | ||
| 2521 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2522 | We won't actually be using the low 16 bits, so trashing them | |
| 2523 | doesn't matter. */ | |
| 2524 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2525 | r_type = reloc_entry->howto->type; |
| 2526 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2527 | return bfd_reloc_continue; | |
| 2528 | ||
| 2529 | value = 0; | |
| 2530 | if (!bfd_is_com_section (symbol->section)) | |
| 2531 | value = symbol->value; | |
| 2532 | value += (reloc_entry->addend | |
| 2533 | + symbol->section->output_offset | |
| 2534 | + symbol->section->output_section->vma); | |
| 2535 | value -= (reloc_entry->address | |
| 2536 | + input_section->output_offset | |
| 2537 | + input_section->output_section->vma); | |
| 2538 | value = (bfd_signed_vma) value >> 16; | |
| 2539 | ||
| 2540 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2541 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2542 | insn &= ~0x1fffc1; | |
| 2543 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
| 2544 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
| 2545 | if (value + 0x8000 > 0xffff) | |
| 2546 | return bfd_reloc_overflow; | |
| 2547 | return bfd_reloc_ok; | |
| 805fc799 | 2548 | } |
| 5bd4f169 | 2549 | |
| 2441e016 AM |
2550 | static bfd_reloc_status_type |
| 2551 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2552 | void *data, asection *input_section, | |
| 2553 | bfd *output_bfd, char **error_message) | |
| 2554 | { | |
| 2555 | if (output_bfd != NULL) | |
| 2556 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2557 | input_section, output_bfd, error_message); | |
| 2558 | ||
| 699733f6 AM |
2559 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2560 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2561 | { |
| 2562 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2563 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2564 | NULL, NULL, FALSE); |
| 2441e016 AM |
2565 | if (dest != (bfd_vma) -1) |
| 2566 | reloc_entry->addend = dest - (symbol->value | |
| 2567 | + symbol->section->output_section->vma | |
| 2568 | + symbol->section->output_offset); | |
| 2569 | } | |
| 810d4e75 AM |
2570 | else |
| 2571 | { | |
| 2572 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2573 | ||
| 2574 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2575 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2576 | && abiversion (symbol->section->owner) >= 2) |
| 2577 | { | |
| 2578 | unsigned int i; | |
| 2579 | ||
| 2580 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2581 | { | |
| 2582 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2583 | ||
| 2584 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2585 | { | |
| 2586 | elfsym = (elf_symbol_type *) symdef; | |
| 2587 | break; | |
| 2588 | } | |
| 2589 | } | |
| 2590 | } | |
| 2591 | reloc_entry->addend | |
| 2592 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2593 | } | |
| 2441e016 AM |
2594 | return bfd_reloc_continue; |
| 2595 | } | |
| 2596 | ||
| 805fc799 | 2597 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2598 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2599 | void *data, asection *input_section, | |
| 2600 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2601 | { |
| 2602 | long insn; | |
| 04c9666a | 2603 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2604 | bfd_size_type octets; |
| 794e51c0 AM |
2605 | /* Assume 'at' branch hints. */ |
| 2606 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2607 | |
| 2608 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2609 | call the generic function. Any adjustment will be done at final | |
| 2610 | link time. */ | |
| 5bd4f169 | 2611 | if (output_bfd != NULL) |
| cedb70c5 | 2612 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2613 | input_section, output_bfd, error_message); |
| 2614 | ||
| 2615 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2616 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2617 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2618 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2619 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2620 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2621 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2622 | |
| 794e51c0 | 2623 | if (is_isa_v2) |
| 5bd4f169 | 2624 | { |
| 805fc799 AM |
2625 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2626 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2627 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2628 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2629 | insn |= 0x02 << 21; | |
| 2630 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2631 | insn |= 0x08 << 21; | |
| 2632 | else | |
| 2441e016 | 2633 | goto out; |
| 5bd4f169 | 2634 | } |
| 805fc799 AM |
2635 | else |
| 2636 | { | |
| 2637 | bfd_vma target = 0; | |
| 2638 | bfd_vma from; | |
| 5bd4f169 | 2639 | |
| 805fc799 AM |
2640 | if (!bfd_is_com_section (symbol->section)) |
| 2641 | target = symbol->value; | |
| 2642 | target += symbol->section->output_section->vma; | |
| 2643 | target += symbol->section->output_offset; | |
| 2644 | target += reloc_entry->addend; | |
| 5bd4f169 | 2645 | |
| 805fc799 AM |
2646 | from = (reloc_entry->address |
| 2647 | + input_section->output_offset | |
| 2648 | + input_section->output_section->vma); | |
| 5bd4f169 | 2649 | |
| 805fc799 AM |
2650 | /* Invert 'y' bit if not the default. */ |
| 2651 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2652 | insn ^= 0x01 << 21; | |
| 2653 | } | |
| 4ce794b7 | 2654 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2655 | out: |
| 2656 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2657 | input_section, output_bfd, error_message); | |
| 805fc799 | 2658 | } |
| 5bd4f169 | 2659 | |
| 805fc799 | 2660 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2661 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2662 | void *data, asection *input_section, | |
| 2663 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2664 | { |
| 2665 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2666 | call the generic function. Any adjustment will be done at final | |
| 2667 | link time. */ | |
| 2668 | if (output_bfd != NULL) | |
| cedb70c5 | 2669 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2670 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2671 | |
| 805fc799 AM |
2672 | /* Subtract the symbol section base address. */ |
| 2673 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2674 | return bfd_reloc_continue; |
| 2675 | } | |
| 2676 | ||
| 805fc799 | 2677 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2678 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2679 | void *data, asection *input_section, | |
| 2680 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2681 | { |
| 2682 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2683 | call the generic function. Any adjustment will be done at final | |
| 2684 | link time. */ | |
| 2685 | if (output_bfd != NULL) | |
| cedb70c5 | 2686 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2687 | input_section, output_bfd, error_message); |
| 2688 | ||
| 2689 | /* Subtract the symbol section base address. */ | |
| 2690 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2691 | ||
| 2692 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2693 | reloc_entry->addend += 0x8000; | |
| 2694 | return bfd_reloc_continue; | |
| 2695 | } | |
| 2696 | ||
| 2697 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2698 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2699 | void *data, asection *input_section, | |
| 2700 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2701 | { |
| 2702 | bfd_vma TOCstart; | |
| 2703 | ||
| 2704 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2705 | call the generic function. Any adjustment will be done at final | |
| 2706 | link time. */ | |
| 2707 | if (output_bfd != NULL) | |
| cedb70c5 | 2708 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2709 | input_section, output_bfd, error_message); |
| 2710 | ||
| 2711 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2712 | if (TOCstart == 0) | |
| 1c865ab2 | 2713 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2714 | |
| 2715 | /* Subtract the TOC base address. */ | |
| 2716 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2717 | return bfd_reloc_continue; | |
| 2718 | } | |
| 2719 | ||
| 2720 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2721 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2722 | void *data, asection *input_section, | |
| 2723 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2724 | { |
| 2725 | bfd_vma TOCstart; | |
| 2726 | ||
| 2727 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2728 | call the generic function. Any adjustment will be done at final | |
| 2729 | link time. */ | |
| 2730 | if (output_bfd != NULL) | |
| cedb70c5 | 2731 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2732 | input_section, output_bfd, error_message); |
| 2733 | ||
| 2734 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2735 | if (TOCstart == 0) | |
| 1c865ab2 | 2736 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2737 | |
| 2738 | /* Subtract the TOC base address. */ | |
| 2739 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2740 | ||
| 2741 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2742 | reloc_entry->addend += 0x8000; | |
| 2743 | return bfd_reloc_continue; | |
| 2744 | } | |
| 2745 | ||
| 2746 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2747 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2748 | void *data, asection *input_section, | |
| 2749 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2750 | { |
| 2751 | bfd_vma TOCstart; | |
| 2752 | bfd_size_type octets; | |
| 2753 | ||
| 2754 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2755 | call the generic function. Any adjustment will be done at final | |
| 2756 | link time. */ | |
| 2757 | if (output_bfd != NULL) | |
| cedb70c5 | 2758 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2759 | input_section, output_bfd, error_message); |
| 2760 | ||
| 2761 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2762 | if (TOCstart == 0) | |
| 1c865ab2 | 2763 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2764 | |
| 2765 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2766 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2767 | return bfd_reloc_ok; | |
| 2768 | } | |
| 2769 | ||
| 2770 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2771 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2772 | void *data, asection *input_section, | |
| 2773 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2774 | { |
| 2775 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2776 | call the generic function. Any adjustment will be done at final | |
| 2777 | link time. */ | |
| 2778 | if (output_bfd != NULL) | |
| cedb70c5 | 2779 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2780 | input_section, output_bfd, error_message); |
| 2781 | ||
| 2782 | if (error_message != NULL) | |
| 2783 | { | |
| 2784 | static char buf[60]; | |
| 2785 | sprintf (buf, "generic linker can't handle %s", | |
| 2786 | reloc_entry->howto->name); | |
| 2787 | *error_message = buf; | |
| 2788 | } | |
| 2789 | return bfd_reloc_dangerous; | |
| 2790 | } | |
| 2791 | ||
| 927be08e AM |
2792 | /* Track GOT entries needed for a given symbol. We might need more |
| 2793 | than one got entry per symbol. */ | |
| 2794 | struct got_entry | |
| 2795 | { | |
| 2796 | struct got_entry *next; | |
| 2797 | ||
| 2798 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2799 | bfd_vma addend; | |
| 2800 | ||
| 2801 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2802 | symbol referenced from different input files. This is to support | |
| 2803 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2804 | from one input file to another. After partitioning into TOC groups | |
| 2805 | we merge entries within the group. | |
| 2806 | ||
| 2807 | Point to the BFD owning this GOT entry. */ | |
| 2808 | bfd *owner; | |
| 2809 | ||
| 2810 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2811 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2812 | unsigned char tls_type; |
| 927be08e AM |
2813 | |
| 2814 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2815 | unsigned char is_indirect; |
| 927be08e AM |
2816 | |
| 2817 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2818 | union | |
| 2819 | { | |
| 2820 | bfd_signed_vma refcount; | |
| 2821 | bfd_vma offset; | |
| 2822 | struct got_entry *ent; | |
| 2823 | } got; | |
| 2824 | }; | |
| 2825 | ||
| 2826 | /* The same for PLT. */ | |
| 2827 | struct plt_entry | |
| 2828 | { | |
| 2829 | struct plt_entry *next; | |
| 2830 | ||
| 2831 | bfd_vma addend; | |
| 2832 | ||
| 2833 | union | |
| 2834 | { | |
| 2835 | bfd_signed_vma refcount; | |
| 2836 | bfd_vma offset; | |
| 2837 | } plt; | |
| 2838 | }; | |
| 2839 | ||
| e717da7e AM |
2840 | struct ppc64_elf_obj_tdata |
| 2841 | { | |
| 2842 | struct elf_obj_tdata elf; | |
| 2843 | ||
| 2844 | /* Shortcuts to dynamic linker sections. */ | |
| 2845 | asection *got; | |
| 2846 | asection *relgot; | |
| 2847 | ||
| b3fac117 AM |
2848 | /* Used during garbage collection. We attach global symbols defined |
| 2849 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2850 | asection *deleted_section; | |
| 81688140 | 2851 | |
| 927be08e | 2852 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2853 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2854 | struct got_entry tlsld_got; |
| 8860955f | 2855 | |
| 729eabd5 AM |
2856 | union { |
| 2857 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2858 | Elf_Internal_Rela *relocs; | |
| 2859 | ||
| 2860 | /* Section contents. */ | |
| 2861 | bfd_byte *contents; | |
| 2862 | } opd; | |
| d77c8a4b AM |
2863 | |
| 2864 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2865 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2866 | unsigned int has_small_toc_reloc : 1; |
| 2867 | ||
| 560c8763 AM |
2868 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2869 | instruction not one we handle. */ | |
| 2870 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2871 | }; |
| 2872 | ||
| 2873 | #define ppc64_elf_tdata(bfd) \ | |
| 2874 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2875 | ||
| 2876 | #define ppc64_tlsld_got(bfd) \ | |
| 2877 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2878 | ||
| 0c8d6e5c AM |
2879 | #define is_ppc64_elf(bfd) \ |
| 2880 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2881 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2882 | |
| e717da7e AM |
2883 | /* Override the generic function because we store some extras. */ |
| 2884 | ||
| 2885 | static bfd_boolean | |
| 2886 | ppc64_elf_mkobject (bfd *abfd) | |
| 2887 | { | |
| 0ffa91dd | 2888 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2889 | PPC64_ELF_DATA); |
| e717da7e AM |
2890 | } |
| 2891 | ||
| feee612b | 2892 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2893 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2894 | |
| b34976b6 | 2895 | static bfd_boolean |
| 4ce794b7 | 2896 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2897 | { |
| 14b57c7c AM |
2898 | if (!abfd->arch_info->the_default) |
| 2899 | return TRUE; | |
| 2900 | ||
| 2901 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2902 | { |
| 2903 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2904 | ||
| 2905 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2906 | { | |
| 2907 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2908 | abfd->arch_info = abfd->arch_info->next; | |
| 2909 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2910 | } | |
| 2911 | } | |
| 14b57c7c | 2912 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2913 | } |
| 2914 | ||
| d37c89e5 AM |
2915 | /* Support for core dump NOTE sections. */ |
| 2916 | ||
| 2917 | static bfd_boolean | |
| 2918 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2919 | { | |
| eea6121a | 2920 | size_t offset, size; |
| d37c89e5 AM |
2921 | |
| 2922 | if (note->descsz != 504) | |
| 2923 | return FALSE; | |
| 2924 | ||
| 2925 | /* pr_cursig */ | |
| 228e534f | 2926 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2927 | |
| 2928 | /* pr_pid */ | |
| 228e534f | 2929 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2930 | |
| 2931 | /* pr_reg */ | |
| 2932 | offset = 112; | |
| eea6121a | 2933 | size = 384; |
| d37c89e5 AM |
2934 | |
| 2935 | /* Make a ".reg/999" section. */ | |
| 2936 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2937 | size, note->descpos + offset); |
| d37c89e5 AM |
2938 | } |
| 2939 | ||
| 2940 | static bfd_boolean | |
| 2941 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2942 | { | |
| 2943 | if (note->descsz != 136) | |
| 2944 | return FALSE; | |
| 2945 | ||
| 228e534f | 2946 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2947 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2948 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2949 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2950 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2951 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2952 | ||
| 2953 | return TRUE; | |
| 2954 | } | |
| 2955 | ||
| 183e98be AM |
2956 | static char * |
| 2957 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2958 | ...) | |
| 2959 | { | |
| 2960 | switch (note_type) | |
| 2961 | { | |
| 2962 | default: | |
| 2963 | return NULL; | |
| 2964 | ||
| 2965 | case NT_PRPSINFO: | |
| 2966 | { | |
| 2967 | char data[136]; | |
| 2968 | va_list ap; | |
| 2969 | ||
| 2970 | va_start (ap, note_type); | |
| 75cd47ed | 2971 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2972 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2973 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2974 | va_end (ap); | |
| 2975 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2976 | "CORE", note_type, data, sizeof (data)); | |
| 2977 | } | |
| 2978 | ||
| 2979 | case NT_PRSTATUS: | |
| 2980 | { | |
| 2981 | char data[504]; | |
| 2982 | va_list ap; | |
| 2983 | long pid; | |
| 2984 | int cursig; | |
| 2985 | const void *greg; | |
| 2986 | ||
| 2987 | va_start (ap, note_type); | |
| 2988 | memset (data, 0, 112); | |
| 2989 | pid = va_arg (ap, long); | |
| 2990 | bfd_put_32 (abfd, pid, data + 32); | |
| 2991 | cursig = va_arg (ap, int); | |
| 2992 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2993 | greg = va_arg (ap, const void *); | |
| 2994 | memcpy (data + 112, greg, 384); | |
| 2995 | memset (data + 496, 0, 8); | |
| 2996 | va_end (ap); | |
| 2997 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2998 | "CORE", note_type, data, sizeof (data)); | |
| 2999 | } | |
| 3000 | } | |
| 3001 | } | |
| 3002 | ||
| 5d35169e AM |
3003 | /* Add extra PPC sections. */ |
| 3004 | ||
| b35d266b | 3005 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3006 | { |
| 0112cd26 NC |
3007 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3008 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3009 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3010 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3011 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3012 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3013 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
3014 | }; |
| 3015 | ||
| 7c8fe5c4 AM |
3016 | enum _ppc64_sec_type { |
| 3017 | sec_normal = 0, | |
| 3018 | sec_opd = 1, | |
| 3019 | sec_toc = 2 | |
| 3020 | }; | |
| 3021 | ||
| f0abc2a1 AM |
3022 | struct _ppc64_elf_section_data |
| 3023 | { | |
| 3024 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3025 | |
| f0abc2a1 AM |
3026 | union |
| 3027 | { | |
| 51aecdc5 AM |
3028 | /* An array with one entry for each opd function descriptor, |
| 3029 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3030 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3031 | struct _opd_sec_data |
| 3032 | { | |
| 3033 | /* Points to the function code section for local opd entries. */ | |
| 3034 | asection **func_sec; | |
| 3035 | ||
| 3036 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3037 | long *adjust; | |
| 3038 | } opd; | |
| 7c8fe5c4 | 3039 | |
| 3a71aa26 AM |
3040 | /* An array for toc sections, indexed by offset/8. */ |
| 3041 | struct _toc_sec_data | |
| 3042 | { | |
| 3043 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3044 | unsigned *symndx; | |
| 3045 | ||
| 3046 | /* And the relocation addend. */ | |
| 3047 | bfd_vma *add; | |
| 3048 | } toc; | |
| 7c8fe5c4 AM |
3049 | } u; |
| 3050 | ||
| 3051 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3052 | |
| 7c8fe5c4 AM |
3053 | /* Flag set when small branches are detected. Used to |
| 3054 | select suitable defaults for the stub group size. */ | |
| 3055 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3056 | }; |
| 3057 | ||
| 3058 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3059 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3060 | |
| 3061 | static bfd_boolean | |
| 4ce794b7 | 3062 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3063 | { |
| f592407e AM |
3064 | if (!sec->used_by_bfd) |
| 3065 | { | |
| 3066 | struct _ppc64_elf_section_data *sdata; | |
| 3067 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3068 | |
| f592407e AM |
3069 | sdata = bfd_zalloc (abfd, amt); |
| 3070 | if (sdata == NULL) | |
| 3071 | return FALSE; | |
| 3072 | sec->used_by_bfd = sdata; | |
| 3073 | } | |
| f0abc2a1 AM |
3074 | |
| 3075 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3076 | } | |
| 4025353c | 3077 | |
| 74f0fb50 | 3078 | static struct _opd_sec_data * |
| 4025353c AM |
3079 | get_opd_info (asection * sec) |
| 3080 | { | |
| 3081 | if (sec != NULL | |
| 3082 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3083 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3084 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3085 | return NULL; |
| 3086 | } | |
| 90e3cdf2 JJ |
3087 | \f |
| 3088 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3089 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3090 | static asection *synthetic_opd; |
| 90e3cdf2 | 3091 | |
| 699733f6 | 3092 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3093 | |
| 3094 | static int | |
| 3095 | compare_symbols (const void *ap, const void *bp) | |
| 3096 | { | |
| 3097 | const asymbol *a = * (const asymbol **) ap; | |
| 3098 | const asymbol *b = * (const asymbol **) bp; | |
| 3099 | ||
| 699733f6 AM |
3100 | /* Section symbols first. */ |
| 3101 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3102 | return -1; |
| 699733f6 | 3103 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3104 | return 1; |
| 3105 | ||
| 699733f6 | 3106 | /* then .opd symbols. */ |
| cd285db5 AM |
3107 | if (synthetic_opd != NULL) |
| 3108 | { | |
| 3109 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3110 | && strcmp (b->section->name, ".opd") != 0) | |
| 3111 | return -1; | |
| 3112 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3113 | && strcmp (b->section->name, ".opd") == 0) | |
| 3114 | return 1; | |
| 3115 | } | |
| 90e3cdf2 | 3116 | |
| 699733f6 | 3117 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3118 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3119 | == (SEC_CODE | SEC_ALLOC) | |
| 3120 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3121 | != (SEC_CODE | SEC_ALLOC)) | |
| 3122 | return -1; | |
| 3123 | ||
| 3124 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3125 | != (SEC_CODE | SEC_ALLOC) | |
| 3126 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3127 | == (SEC_CODE | SEC_ALLOC)) | |
| 3128 | return 1; | |
| 3129 | ||
| 3130 | if (synthetic_relocatable) | |
| 3131 | { | |
| 3132 | if (a->section->id < b->section->id) | |
| 3133 | return -1; | |
| 3134 | ||
| 3135 | if (a->section->id > b->section->id) | |
| 3136 | return 1; | |
| 3137 | } | |
| 3138 | ||
| 3139 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3140 | return -1; | |
| 3141 | ||
| 3142 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3143 | return 1; | |
| 3144 | ||
| 4d35a0aa AM |
3145 | /* For syms with the same value, prefer strong dynamic global function |
| 3146 | syms over other syms. */ | |
| 3147 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3148 | return -1; | |
| 3149 | ||
| 3150 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3151 | return 1; | |
| 3152 | ||
| 3153 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3154 | return -1; | |
| 3155 | ||
| 3156 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3157 | return 1; | |
| 3158 | ||
| 3159 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3160 | return -1; | |
| 3161 | ||
| 3162 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3163 | return 1; | |
| 3164 | ||
| 3165 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3166 | return -1; | |
| 3167 | ||
| 3168 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3169 | return 1; | |
| 3170 | ||
| 90e3cdf2 JJ |
3171 | return 0; |
| 3172 | } | |
| 3173 | ||
| 699733f6 | 3174 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3175 | |
| 699733f6 | 3176 | static asymbol * |
| 7292b3ac | 3177 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3178 | { |
| 699733f6 | 3179 | long mid; |
| 90e3cdf2 | 3180 | |
| 7292b3ac | 3181 | if (id == (unsigned) -1) |
| 699733f6 AM |
3182 | { |
| 3183 | while (lo < hi) | |
| 3184 | { | |
| 3185 | mid = (lo + hi) >> 1; | |
| 3186 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3187 | lo = mid + 1; | |
| 3188 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3189 | hi = mid; | |
| 3190 | else | |
| 3191 | return syms[mid]; | |
| 3192 | } | |
| 3193 | } | |
| 3194 | else | |
| 3195 | { | |
| 3196 | while (lo < hi) | |
| 3197 | { | |
| 3198 | mid = (lo + hi) >> 1; | |
| 3199 | if (syms[mid]->section->id < id) | |
| 3200 | lo = mid + 1; | |
| 3201 | else if (syms[mid]->section->id > id) | |
| 3202 | hi = mid; | |
| 3203 | else if (syms[mid]->value < value) | |
| 3204 | lo = mid + 1; | |
| 3205 | else if (syms[mid]->value > value) | |
| 3206 | hi = mid; | |
| 3207 | else | |
| 3208 | return syms[mid]; | |
| 3209 | } | |
| 3210 | } | |
| 3211 | return NULL; | |
| 90e3cdf2 JJ |
3212 | } |
| 3213 | ||
| 468392fb AM |
3214 | static bfd_boolean |
| 3215 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3216 | { | |
| 3217 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3218 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3219 | && section->vma <= vma | |
| 3220 | && vma < section->vma + section->size); | |
| 3221 | } | |
| 3222 | ||
| 699733f6 | 3223 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3224 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3225 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3226 | |
| 3227 | static long | |
| a7535cf3 AM |
3228 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3229 | long static_count, asymbol **static_syms, | |
| 3230 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3231 | asymbol **ret) |
| 90e3cdf2 JJ |
3232 | { |
| 3233 | asymbol *s; | |
| 699733f6 AM |
3234 | long i; |
| 3235 | long count; | |
| 90e3cdf2 | 3236 | char *names; |
| a7535cf3 | 3237 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3238 | asection *opd = NULL; |
| 90e3cdf2 | 3239 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3240 | asymbol **syms; |
| ee67d69a | 3241 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3242 | |
| 3243 | *ret = NULL; | |
| 3244 | ||
| ee67d69a AM |
3245 | if (abi < 2) |
| 3246 | { | |
| 3247 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3248 | if (opd == NULL && abi == 1) | |
| 3249 | return 0; | |
| 3250 | } | |
| 90e3cdf2 | 3251 | |
| a7535cf3 | 3252 | symcount = static_count; |
| c9727e01 | 3253 | if (!relocatable) |
| a7535cf3 | 3254 | symcount += dyn_count; |
| 90e3cdf2 | 3255 | if (symcount == 0) |
| c9727e01 | 3256 | return 0; |
| 90e3cdf2 | 3257 | |
| a7535cf3 AM |
3258 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3259 | if (syms == NULL) | |
| 7356fed5 | 3260 | return -1; |
| a7535cf3 AM |
3261 | |
| 3262 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3263 | { | |
| 3264 | /* Use both symbol tables. */ | |
| 3265 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3266 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3267 | } | |
| 3268 | else if (!relocatable && static_count == 0) | |
| 3269 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3270 | else | |
| 3271 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3272 | ||
| 90e3cdf2 | 3273 | synthetic_relocatable = relocatable; |
| cd285db5 | 3274 | synthetic_opd = opd; |
| 595da8c5 | 3275 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3276 | |
| c9727e01 AM |
3277 | if (!relocatable && symcount > 1) |
| 3278 | { | |
| 3279 | long j; | |
| 3280 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3281 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3282 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3283 | for (i = 1, j = 1; i < symcount; ++i) |
| 3284 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3285 | != syms[i]->value + syms[i]->section->vma) | |
| 3286 | syms[j++] = syms[i]; | |
| 3287 | symcount = j; | |
| 3288 | } | |
| 3289 | ||
| 699733f6 | 3290 | i = 0; |
| cd285db5 AM |
3291 | /* Note that here and in compare_symbols we can't compare opd and |
| 3292 | sym->section directly. With separate debug info files, the | |
| 3293 | symbols will be extracted from the debug file while abfd passed | |
| 3294 | to this function is the real binary. */ | |
| 3295 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 699733f6 AM |
3296 | ++i; |
| 3297 | codesecsym = i; | |
| 90e3cdf2 | 3298 | |
| 699733f6 AM |
3299 | for (; i < symcount; ++i) |
| 3300 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3301 | != (SEC_CODE | SEC_ALLOC)) | |
| 3302 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3303 | break; | |
| 3304 | codesecsymend = i; | |
| 90e3cdf2 | 3305 | |
| 699733f6 AM |
3306 | for (; i < symcount; ++i) |
| 3307 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3308 | break; | |
| 3309 | secsymend = i; | |
| 90e3cdf2 | 3310 | |
| cd285db5 AM |
3311 | if (opd != NULL) |
| 3312 | for (; i < symcount; ++i) | |
| 3313 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3314 | break; | |
| 699733f6 | 3315 | opdsymend = i; |
| 90e3cdf2 | 3316 | |
| 699733f6 AM |
3317 | for (; i < symcount; ++i) |
| 3318 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3319 | != (SEC_CODE | SEC_ALLOC)) | |
| 3320 | break; | |
| 3321 | symcount = i; | |
| 3322 | ||
| c9727e01 | 3323 | count = 0; |
| 90e3cdf2 | 3324 | |
| 699733f6 | 3325 | if (relocatable) |
| 90e3cdf2 | 3326 | { |
| 699733f6 AM |
3327 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3328 | arelent *r; | |
| 3329 | size_t size; | |
| 3330 | long relcount; | |
| 90e3cdf2 | 3331 | |
| 468392fb AM |
3332 | if (opdsymend == secsymend) |
| 3333 | goto done; | |
| 3334 | ||
| 699733f6 | 3335 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3336 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3337 | if (relcount == 0) |
| c9727e01 | 3338 | goto done; |
| 90e3cdf2 | 3339 | |
| 7356fed5 AM |
3340 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3341 | { | |
| 3342 | count = -1; | |
| 3343 | goto done; | |
| 3344 | } | |
| 3345 | ||
| 699733f6 | 3346 | size = 0; |
| 595da8c5 | 3347 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3348 | { |
| 3349 | asymbol *sym; | |
| 90e3cdf2 | 3350 | |
| 595da8c5 | 3351 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3352 | && r->address < syms[i]->value + opd->vma) |
| 3353 | ++r; | |
| 90e3cdf2 | 3354 | |
| 595da8c5 | 3355 | if (r == opd->relocation + relcount) |
| 699733f6 | 3356 | break; |
| 90e3cdf2 | 3357 | |
| 699733f6 AM |
3358 | if (r->address != syms[i]->value + opd->vma) |
| 3359 | continue; | |
| 90e3cdf2 | 3360 | |
| 699733f6 AM |
3361 | if (r->howto->type != R_PPC64_ADDR64) |
| 3362 | continue; | |
| 90e3cdf2 | 3363 | |
| 699733f6 AM |
3364 | sym = *r->sym_ptr_ptr; |
| 3365 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3366 | sym->section->id, sym->value + r->addend)) | |
| 3367 | { | |
| 3368 | ++count; | |
| 3369 | size += sizeof (asymbol); | |
| 3370 | size += strlen (syms[i]->name) + 2; | |
| 3371 | } | |
| 3372 | } | |
| 90e3cdf2 | 3373 | |
| c4b0b099 AM |
3374 | if (size == 0) |
| 3375 | goto done; | |
| 699733f6 AM |
3376 | s = *ret = bfd_malloc (size); |
| 3377 | if (s == NULL) | |
| 3378 | { | |
| 7356fed5 | 3379 | count = -1; |
| c9727e01 | 3380 | goto done; |
| 699733f6 | 3381 | } |
| 90e3cdf2 | 3382 | |
| 699733f6 | 3383 | names = (char *) (s + count); |
| 90e3cdf2 | 3384 | |
| 595da8c5 | 3385 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3386 | { |
| 699733f6 | 3387 | asymbol *sym; |
| 90e3cdf2 | 3388 | |
| 595da8c5 | 3389 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3390 | && r->address < syms[i]->value + opd->vma) |
| 3391 | ++r; | |
| 90e3cdf2 | 3392 | |
| 595da8c5 | 3393 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3394 | break; |
| 3395 | ||
| 3396 | if (r->address != syms[i]->value + opd->vma) | |
| 3397 | continue; | |
| 3398 | ||
| 3399 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3400 | continue; | |
| 90e3cdf2 | 3401 | |
| 699733f6 AM |
3402 | sym = *r->sym_ptr_ptr; |
| 3403 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3404 | sym->section->id, sym->value + r->addend)) | |
| 3405 | { | |
| 3406 | size_t len; | |
| 3407 | ||
| 3408 | *s = *syms[i]; | |
| 6ba2a415 | 3409 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3410 | s->section = sym->section; |
| 3411 | s->value = sym->value + r->addend; | |
| 3412 | s->name = names; | |
| 3413 | *names++ = '.'; | |
| 3414 | len = strlen (syms[i]->name); | |
| 3415 | memcpy (names, syms[i]->name, len + 1); | |
| 3416 | names += len + 1; | |
| 6f610d07 UW |
3417 | /* Have udata.p point back to the original symbol this |
| 3418 | synthetic symbol was derived from. */ | |
| 3419 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3420 | s++; |
| 3421 | } | |
| 3422 | } | |
| 3423 | } | |
| 3424 | else | |
| 90e3cdf2 | 3425 | { |
| 468392fb | 3426 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3427 | bfd_byte *contents = NULL; |
| 699733f6 | 3428 | size_t size; |
| 468392fb AM |
3429 | long plt_count = 0; |
| 3430 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3431 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3432 | arelent *p; | |
| 90e3cdf2 | 3433 | |
| ee67d69a | 3434 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3435 | { |
| c4b0b099 AM |
3436 | free_contents_and_exit_err: |
| 3437 | count = -1; | |
| ee67d69a | 3438 | free_contents_and_exit: |
| 699733f6 | 3439 | if (contents) |
| ee67d69a | 3440 | free (contents); |
| c9727e01 | 3441 | goto done; |
| 699733f6 | 3442 | } |
| 90e3cdf2 | 3443 | |
| 699733f6 AM |
3444 | size = 0; |
| 3445 | for (i = secsymend; i < opdsymend; ++i) | |
| 3446 | { | |
| 3447 | bfd_vma ent; | |
| 90e3cdf2 | 3448 | |
| 5ef11c02 AM |
3449 | /* Ignore bogus symbols. */ |
| 3450 | if (syms[i]->value > opd->size - 8) | |
| 3451 | continue; | |
| 3452 | ||
| 699733f6 AM |
3453 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3454 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3455 | { | |
| 3456 | ++count; | |
| 3457 | size += sizeof (asymbol); | |
| 3458 | size += strlen (syms[i]->name) + 2; | |
| 3459 | } | |
| 3460 | } | |
| 90e3cdf2 | 3461 | |
| 468392fb | 3462 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3463 | if (dyn_count != 0 |
| 3464 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3465 | { |
| 3466 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3467 | size_t extdynsize; | |
| 3468 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3469 | ||
| 3470 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3471 | goto free_contents_and_exit_err; |
| 468392fb AM |
3472 | |
| 3473 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3474 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3475 | ||
| 3476 | extdyn = dynbuf; | |
| 3477 | extdynend = extdyn + dynamic->size; | |
| 3478 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3479 | { | |
| 3480 | Elf_Internal_Dyn dyn; | |
| 3481 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3482 | ||
| 3483 | if (dyn.d_tag == DT_NULL) | |
| 3484 | break; | |
| 3485 | ||
| 3486 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3487 | { | |
| b9e5796b AM |
3488 | /* The first glink stub starts at offset 32; see |
| 3489 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3490 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3491 | /* The .glink section usually does not survive the final |
| 3492 | link; search for the section (usually .text) where the | |
| 3493 | glink stubs now reside. */ | |
| 3494 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3495 | &glink_vma); | |
| 3496 | break; | |
| 3497 | } | |
| 3498 | } | |
| 3499 | ||
| 3500 | free (dynbuf); | |
| 3501 | } | |
| 3502 | ||
| 3503 | if (glink != NULL) | |
| 3504 | { | |
| 3505 | /* Determine __glink trampoline by reading the relative branch | |
| 3506 | from the first glink stub. */ | |
| 3507 | bfd_byte buf[4]; | |
| b9e5796b AM |
3508 | unsigned int off = 0; |
| 3509 | ||
| 3510 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3511 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3512 | { |
| 3513 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3514 | insn ^= B_DOT; | |
| 3515 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3516 | { |
| 3517 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3518 | break; | |
| 3519 | } | |
| 3520 | off += 4; | |
| 3521 | if (off > 4) | |
| 3522 | break; | |
| 468392fb AM |
3523 | } |
| 3524 | ||
| 3525 | if (resolv_vma) | |
| 3526 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3527 | |
| 066ee829 AM |
3528 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3529 | if (relplt != NULL) | |
| 3530 | { | |
| 3531 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3532 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3533 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3534 | |
| 066ee829 AM |
3535 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3536 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3537 | |
| 066ee829 AM |
3538 | p = relplt->relocation; |
| 3539 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3540 | { |
| 3541 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3542 | if (p->addend != 0) | |
| 3543 | size += sizeof ("+0x") - 1 + 16; | |
| 3544 | } | |
| 066ee829 | 3545 | } |
| 468392fb AM |
3546 | } |
| 3547 | ||
| c4b0b099 AM |
3548 | if (size == 0) |
| 3549 | goto free_contents_and_exit; | |
| 699733f6 AM |
3550 | s = *ret = bfd_malloc (size); |
| 3551 | if (s == NULL) | |
| c4b0b099 | 3552 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3553 | |
| 468392fb | 3554 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3555 | |
| 699733f6 | 3556 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3557 | { |
| 699733f6 | 3558 | bfd_vma ent; |
| 90e3cdf2 | 3559 | |
| 5ef11c02 AM |
3560 | if (syms[i]->value > opd->size - 8) |
| 3561 | continue; | |
| 3562 | ||
| 699733f6 AM |
3563 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3564 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3565 | { |
| c9727e01 | 3566 | long lo, hi; |
| 699733f6 | 3567 | size_t len; |
| c9727e01 | 3568 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3569 | |
| 699733f6 AM |
3570 | *s = *syms[i]; |
| 3571 | lo = codesecsym; | |
| 3572 | hi = codesecsymend; | |
| 3573 | while (lo < hi) | |
| 3574 | { | |
| c9727e01 | 3575 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3576 | if (syms[mid]->section->vma < ent) |
| 3577 | lo = mid + 1; | |
| 3578 | else if (syms[mid]->section->vma > ent) | |
| 3579 | hi = mid; | |
| 3580 | else | |
| c9727e01 AM |
3581 | { |
| 3582 | sec = syms[mid]->section; | |
| 3583 | break; | |
| 3584 | } | |
| 699733f6 AM |
3585 | } |
| 3586 | ||
| c9727e01 | 3587 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3588 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3589 | |
| 3590 | for (; sec != NULL; sec = sec->next) | |
| 3591 | { | |
| 3592 | if (sec->vma > ent) | |
| 3593 | break; | |
| 63524580 JK |
3594 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3595 | info file. */ | |
| 3596 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3597 | break; |
| 3598 | if ((sec->flags & SEC_CODE) != 0) | |
| 3599 | s->section = sec; | |
| 3600 | } | |
| 6ba2a415 | 3601 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3602 | s->value = ent - s->section->vma; |
| 3603 | s->name = names; | |
| 3604 | *names++ = '.'; | |
| 3605 | len = strlen (syms[i]->name); | |
| 3606 | memcpy (names, syms[i]->name, len + 1); | |
| 3607 | names += len + 1; | |
| 6f610d07 UW |
3608 | /* Have udata.p point back to the original symbol this |
| 3609 | synthetic symbol was derived from. */ | |
| 3610 | s->udata.p = syms[i]; | |
| 699733f6 | 3611 | s++; |
| 90e3cdf2 | 3612 | } |
| 90e3cdf2 | 3613 | } |
| 699733f6 | 3614 | free (contents); |
| 468392fb AM |
3615 | |
| 3616 | if (glink != NULL && relplt != NULL) | |
| 3617 | { | |
| 3618 | if (resolv_vma) | |
| 3619 | { | |
| 3620 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3621 | memset (s, 0, sizeof *s); |
| 468392fb | 3622 | s->the_bfd = abfd; |
| 6ba2a415 | 3623 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3624 | s->section = glink; |
| 3625 | s->value = resolv_vma - glink->vma; | |
| 3626 | s->name = names; | |
| 3627 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3628 | names += sizeof ("__glink_PLTresolve"); | |
| 3629 | s++; | |
| 3630 | count++; | |
| 3631 | } | |
| 3632 | ||
| 3633 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3634 | stub rather than on the glink branch table entry. The | |
| 3635 | objdump disassembler would then use a sensible symbol | |
| 3636 | name on plt calls. The difficulty in doing so is | |
| 3637 | a) finding the stubs, and, | |
| 3638 | b) matching stubs against plt entries, and, | |
| 3639 | c) there can be multiple stubs for a given plt entry. | |
| 3640 | ||
| 3641 | Solving (a) could be done by code scanning, but older | |
| 3642 | ppc64 binaries used different stubs to current code. | |
| 3643 | (b) is the tricky one since you need to known the toc | |
| 3644 | pointer for at least one function that uses a pic stub to | |
| 3645 | be able to calculate the plt address referenced. | |
| 3646 | (c) means gdb would need to set multiple breakpoints (or | |
| 3647 | find the glink branch itself) when setting breakpoints | |
| 3648 | for pending shared library loads. */ | |
| 3649 | p = relplt->relocation; | |
| 3650 | for (i = 0; i < plt_count; i++, p++) | |
| 3651 | { | |
| 3652 | size_t len; | |
| 3653 | ||
| 3654 | *s = **p->sym_ptr_ptr; | |
| 3655 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3656 | we are defining a symbol, ensure one of them is set. */ | |
| 3657 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3658 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3659 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3660 | s->section = glink; |
| 3661 | s->value = glink_vma - glink->vma; | |
| 3662 | s->name = names; | |
| 3663 | s->udata.p = NULL; | |
| 3664 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3665 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3666 | names += len; | |
| e054468f AM |
3667 | if (p->addend != 0) |
| 3668 | { | |
| 3669 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3670 | names += sizeof ("+0x") - 1; | |
| 3671 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3672 | names += strlen (names); | |
| 3673 | } | |
| 468392fb AM |
3674 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3675 | names += sizeof ("@plt"); | |
| 3676 | s++; | |
| b9e5796b AM |
3677 | if (abi < 2) |
| 3678 | { | |
| 3679 | glink_vma += 8; | |
| 3680 | if (i >= 0x8000) | |
| 3681 | glink_vma += 4; | |
| 3682 | } | |
| 3683 | else | |
| 468392fb AM |
3684 | glink_vma += 4; |
| 3685 | } | |
| 3686 | count += plt_count; | |
| 3687 | } | |
| 90e3cdf2 JJ |
3688 | } |
| 3689 | ||
| c9727e01 | 3690 | done: |
| a7535cf3 | 3691 | free (syms); |
| 90e3cdf2 JJ |
3692 | return count; |
| 3693 | } | |
| 5bd4f169 | 3694 | \f |
| 65f38f15 AM |
3695 | /* The following functions are specific to the ELF linker, while |
| 3696 | functions above are used generally. Those named ppc64_elf_* are | |
| 3697 | called by the main ELF linker code. They appear in this file more | |
| 3698 | or less in the order in which they are called. eg. | |
| 3699 | ppc64_elf_check_relocs is called early in the link process, | |
| 3700 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3701 | called. |
| 3702 | ||
| 3703 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3704 | functions have both a function code symbol and a function descriptor | |
| 3705 | symbol. A call to foo in a relocatable object file looks like: | |
| 3706 | ||
| 3707 | . .text | |
| 3708 | . x: | |
| 3709 | . bl .foo | |
| 3710 | . nop | |
| 3711 | ||
| 3712 | The function definition in another object file might be: | |
| 3713 | ||
| 3714 | . .section .opd | |
| 3715 | . foo: .quad .foo | |
| 3716 | . .quad .TOC.@tocbase | |
| 3717 | . .quad 0 | |
| 3718 | . | |
| 3719 | . .text | |
| 3720 | . .foo: blr | |
| 3721 | ||
| 3722 | When the linker resolves the call during a static link, the branch | |
| 3723 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3724 | If the function definition is in a shared library, things are a little | |
| 3725 | different: The call goes via a plt call stub, the opd information gets | |
| 3726 | copied to the plt, and the linker patches the nop. | |
| 3727 | ||
| 3728 | . x: | |
| 3729 | . bl .foo_stub | |
| 3730 | . ld 2,40(1) | |
| 3731 | . | |
| 3732 | . | |
| 3733 | . .foo_stub: | |
| 71a39c98 AM |
3734 | . std 2,40(1) # in practice, the call stub |
| 3735 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3736 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3737 | . ld 12,0(11) | |
| 3738 | . ld 2,8(11) | |
| 3739 | . mtctr 12 | |
| 3740 | . ld 11,16(11) | |
| e86ce104 AM |
3741 | . bctr |
| 3742 | . | |
| 3743 | . .section .plt | |
| 3744 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3745 | ||
| 3746 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3747 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3748 | copying. | |
| 3749 | ||
| 3750 | What are the difficulties here? Well, firstly, the relocations | |
| 3751 | examined by the linker in check_relocs are against the function code | |
| 3752 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3753 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3754 | to carefully copy dynamic link information from one symbol to the other. | |
| 3755 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3756 | symbol as is normal for most other backends. We need foo dynamic | |
| 3757 | instead, at least for an application final link. However, when | |
| 3758 | creating a shared library containing foo, we need to have both symbols | |
| 3759 | dynamic so that references to .foo are satisfied during the early | |
| 3760 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3761 | definition from some other object, eg. a static library. |
| 3762 | ||
| 3763 | Update: As of August 2004, we support a new convention. Function | |
| 3764 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3765 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3766 | |
| 1d483afe | 3767 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3768 | selects those that must be copied when linking a shared library, |
| 3769 | even when the symbol is local. */ | |
| 65f38f15 | 3770 | |
| 1d483afe AM |
3771 | static int |
| 3772 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3773 | enum elf_ppc64_reloc_type r_type) | |
| 3774 | { | |
| 3775 | switch (r_type) | |
| 3776 | { | |
| 3777 | default: | |
| 3778 | return 1; | |
| 3779 | ||
| 3780 | case R_PPC64_REL32: | |
| 3781 | case R_PPC64_REL64: | |
| 3782 | case R_PPC64_REL30: | |
| 3783 | return 0; | |
| 3784 | ||
| 3785 | case R_PPC64_TPREL16: | |
| 3786 | case R_PPC64_TPREL16_LO: | |
| 3787 | case R_PPC64_TPREL16_HI: | |
| 3788 | case R_PPC64_TPREL16_HA: | |
| 3789 | case R_PPC64_TPREL16_DS: | |
| 3790 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3791 | case R_PPC64_TPREL16_HIGH: |
| 3792 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3793 | case R_PPC64_TPREL16_HIGHER: |
| 3794 | case R_PPC64_TPREL16_HIGHERA: | |
| 3795 | case R_PPC64_TPREL16_HIGHEST: | |
| 3796 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3797 | case R_PPC64_TPREL64: | |
| 0e1862bb | 3798 | return !bfd_link_executable (info); |
| 1d483afe AM |
3799 | } |
| 3800 | } | |
| 65f38f15 | 3801 | |
| f4656909 AM |
3802 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3803 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3804 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3805 | shared lib. With code that gcc generates, it's vital that this be |
| 3806 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3807 | the address of a function descriptor, which resides in the .opd | |
| 3808 | section. gcc uses the descriptor directly rather than going via the | |
| 3809 | GOT as some other ABI's do, which means that initialized function | |
| 3810 | pointers must reference the descriptor. Thus, a function pointer | |
| 3811 | initialized to the address of a function in a shared library will | |
| 3812 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3813 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3814 | presents a problem as a plt entry for that function is also |
| 3815 | initialized from the function descriptor symbol and the copy reloc | |
| 3816 | may not be initialized first. */ | |
| a23b6845 | 3817 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3818 | |
| 721956f4 | 3819 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3820 | string. */ |
| 3821 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3822 | |
| 3823 | /* Linker stubs. | |
| 3824 | ppc_stub_long_branch: | |
| 3825 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3826 | destination, but a 24 bit branch in a stub section will reach. | |
| 3827 | . b dest | |
| 3828 | ||
| 3829 | ppc_stub_plt_branch: | |
| 3830 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3831 | reach its destination. | |
| 71a39c98 AM |
3832 | . addis %r11,%r2,xxx@toc@ha |
| 3833 | . ld %r12,xxx@toc@l(%r11) | |
| 3834 | . mtctr %r12 | |
| 721956f4 AM |
3835 | . bctr |
| 3836 | ||
| 3837 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3838 | Used to call a function in a shared library. If it so happens that |
| 3839 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3840 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3841 | . std %r2,40(%r1) |
| 71a39c98 AM |
3842 | . addis %r11,%r2,xxx@toc@ha |
| 3843 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3844 | . mtctr %r12 | |
| 3845 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3846 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3847 | . bctr |
| ad8e1ba5 AM |
3848 | |
| 3849 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3850 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3851 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3852 | . std %r2,40(%r1) | |
| 3853 | . addis %r2,%r2,off@ha | |
| 3854 | . addi %r2,%r2,off@l | |
| 3855 | . b dest | |
| 3856 | ||
| 3857 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3858 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3859 | . addis %r11,%r2,xxx@toc@ha |
| 3860 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3861 | . addis %r2,%r2,off@ha |
| 3862 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3863 | . mtctr %r12 |
| ad8e1ba5 | 3864 | . bctr |
| ac2df442 AM |
3865 | |
| 3866 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3867 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3868 | */ |
| 3869 | ||
| 3870 | enum ppc_stub_type { | |
| 3871 | ppc_stub_none, | |
| 3872 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3873 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3874 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3875 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3876 | ppc_stub_plt_call, |
| 7341d5e2 | 3877 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3878 | ppc_stub_global_entry, |
| 3879 | ppc_stub_save_res | |
| 721956f4 AM |
3880 | }; |
| 3881 | ||
| 6f20ed8a AM |
3882 | /* Information on stub grouping. */ |
| 3883 | struct map_stub | |
| 3884 | { | |
| 3885 | /* The stub section. */ | |
| 3886 | asection *stub_sec; | |
| 3887 | /* This is the section to which stubs in the group will be attached. */ | |
| 3888 | asection *link_sec; | |
| a4b6fadd AM |
3889 | /* Next group. */ |
| 3890 | struct map_stub *next; | |
| 3891 | /* Whether to emit a copy of register save/restore functions in this | |
| 3892 | group. */ | |
| 3893 | int needs_save_res; | |
| 6f20ed8a AM |
3894 | }; |
| 3895 | ||
| 721956f4 AM |
3896 | struct ppc_stub_hash_entry { |
| 3897 | ||
| 3898 | /* Base hash table entry structure. */ | |
| 3899 | struct bfd_hash_entry root; | |
| 3900 | ||
| ad8e1ba5 AM |
3901 | enum ppc_stub_type stub_type; |
| 3902 | ||
| 6f20ed8a AM |
3903 | /* Group information. */ |
| 3904 | struct map_stub *group; | |
| 721956f4 AM |
3905 | |
| 3906 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3907 | bfd_vma stub_offset; | |
| 3908 | ||
| 3909 | /* Given the symbol's value and its section we can determine its final | |
| 3910 | value when building the stubs (so the stub knows where to jump. */ | |
| 3911 | bfd_vma target_value; | |
| 3912 | asection *target_section; | |
| 3913 | ||
| 721956f4 AM |
3914 | /* The symbol table entry, if any, that this was derived from. */ |
| 3915 | struct ppc_link_hash_entry *h; | |
| e054468f | 3916 | struct plt_entry *plt_ent; |
| 721956f4 | 3917 | |
| 6911b7dc AM |
3918 | /* Symbol st_other. */ |
| 3919 | unsigned char other; | |
| 721956f4 AM |
3920 | }; |
| 3921 | ||
| 3922 | struct ppc_branch_hash_entry { | |
| 3923 | ||
| 3924 | /* Base hash table entry structure. */ | |
| 3925 | struct bfd_hash_entry root; | |
| 3926 | ||
| c456f082 | 3927 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3928 | unsigned int offset; |
| 3929 | ||
| 3930 | /* Generation marker. */ | |
| 3931 | unsigned int iter; | |
| 3932 | }; | |
| 65f38f15 | 3933 | |
| 19e08130 AM |
3934 | /* Used to track dynamic relocations for local symbols. */ |
| 3935 | struct ppc_dyn_relocs | |
| 3936 | { | |
| 3937 | struct ppc_dyn_relocs *next; | |
| 3938 | ||
| 3939 | /* The input section of the reloc. */ | |
| 3940 | asection *sec; | |
| 3941 | ||
| 3942 | /* Total number of relocs copied for the input section. */ | |
| 3943 | unsigned int count : 31; | |
| 3944 | ||
| 3945 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3946 | unsigned int ifunc : 1; | |
| 3947 | }; | |
| 3948 | ||
| 65f38f15 AM |
3949 | struct ppc_link_hash_entry |
| 3950 | { | |
| 3951 | struct elf_link_hash_entry elf; | |
| 3952 | ||
| b3fac117 AM |
3953 | union { |
| 3954 | /* A pointer to the most recently used stub hash entry against this | |
| 3955 | symbol. */ | |
| 3956 | struct ppc_stub_hash_entry *stub_cache; | |
| 3957 | ||
| 3958 | /* A pointer to the next symbol starting with a '.' */ | |
| 3959 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3960 | } u; | |
| 721956f4 | 3961 | |
| 65f38f15 | 3962 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3963 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3964 | |
| d311bc8b AM |
3965 | /* Chain of aliases referring to a weakdef. */ |
| 3966 | struct ppc_link_hash_entry *weakref; | |
| 3967 | ||
| 721956f4 | 3968 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3969 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3970 | |
| e86ce104 AM |
3971 | /* Flag function code and descriptor symbols. */ |
| 3972 | unsigned int is_func:1; | |
| 3973 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3974 | unsigned int fake:1; |
| 411e1bfb | 3975 | |
| c5614fa4 AM |
3976 | /* Whether global opd/toc sym has been adjusted or not. |
| 3977 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3978 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3979 | unsigned int adjust_done:1; |
| 3980 | ||
| 99877b66 AM |
3981 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3982 | unsigned int was_undefined:1; | |
| 3983 | ||
| a4b6fadd AM |
3984 | /* Set if this is an out-of-line register save/restore function, |
| 3985 | with non-standard calling convention. */ | |
| 3986 | unsigned int save_res:1; | |
| 3987 | ||
| 411e1bfb | 3988 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3989 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3990 | corresponding relocs are encountered during check_relocs. | |
| 3991 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3992 | indicate the corresponding GOT entry type is not needed. | |
| 3993 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3994 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3995 | just for convenience in distinguishing the two cases. */ | |
| 3996 | #define TLS_GD 1 /* GD reloc. */ | |
| 3997 | #define TLS_LD 2 /* LD reloc. */ | |
| 3998 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3999 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4000 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4001 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4002 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4003 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4004 | unsigned char tls_mask; |
| 65f38f15 AM |
4005 | }; |
| 4006 | ||
| 4007 | /* ppc64 ELF linker hash table. */ | |
| 4008 | ||
| 4009 | struct ppc_link_hash_table | |
| 4010 | { | |
| 4011 | struct elf_link_hash_table elf; | |
| 4012 | ||
| 721956f4 AM |
4013 | /* The stub hash table. */ |
| 4014 | struct bfd_hash_table stub_hash_table; | |
| 4015 | ||
| 4016 | /* Another hash table for plt_branch stubs. */ | |
| 4017 | struct bfd_hash_table branch_hash_table; | |
| 4018 | ||
| 3b421ab3 AM |
4019 | /* Hash table for function prologue tocsave. */ |
| 4020 | htab_t tocsave_htab; | |
| 4021 | ||
| e7d1c40c AM |
4022 | /* Various options and other info passed from the linker. */ |
| 4023 | struct ppc64_elf_params *params; | |
| 721956f4 | 4024 | |
| 6f20ed8a AM |
4025 | /* The size of sec_info below. */ |
| 4026 | unsigned int sec_info_arr_size; | |
| 4027 | ||
| 4028 | /* Per-section array of extra section info. Done this way rather | |
| 4029 | than as part of ppc64_elf_section_data so we have the info for | |
| 4030 | non-ppc64 sections. */ | |
| 4031 | struct | |
| 4032 | { | |
| 4033 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4034 | bfd_vma toc_off; |
| 6f20ed8a AM |
4035 | |
| 4036 | union | |
| 4037 | { | |
| 4038 | /* The section group that this section belongs to. */ | |
| 4039 | struct map_stub *group; | |
| 4040 | /* A temp section list pointer. */ | |
| 4041 | asection *list; | |
| 4042 | } u; | |
| 4043 | } *sec_info; | |
| 721956f4 | 4044 | |
| a4b6fadd AM |
4045 | /* Linked list of groups. */ |
| 4046 | struct map_stub *group; | |
| 4047 | ||
| ad8e1ba5 AM |
4048 | /* Temp used when calculating TOC pointers. */ |
| 4049 | bfd_vma toc_curr; | |
| bf102f86 AM |
4050 | bfd *toc_bfd; |
| 4051 | asection *toc_first_sec; | |
| ad8e1ba5 | 4052 | |
| b3fac117 AM |
4053 | /* Used when adding symbols. */ |
| 4054 | struct ppc_link_hash_entry *dot_syms; | |
| 4055 | ||
| 33e44f2e | 4056 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 AM |
4057 | asection *dynbss; |
| 4058 | asection *relbss; | |
| 4059 | asection *glink; | |
| 82bd7b59 | 4060 | asection *sfpr; |
| 4ce794b7 AM |
4061 | asection *brlt; |
| 4062 | asection *relbrlt; | |
| 58d180e8 | 4063 | asection *glink_eh_frame; |
| ec338859 | 4064 | |
| 8387904d AM |
4065 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4066 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4067 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4068 | |
| 927be08e AM |
4069 | /* The size of reliplt used by got entry relocs. */ |
| 4070 | bfd_size_type got_reli_size; | |
| 4071 | ||
| 9b5ecbd0 | 4072 | /* Statistics. */ |
| 7341d5e2 | 4073 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4074 | |
| ee75fd95 AM |
4075 | /* Number of stubs against global syms. */ |
| 4076 | unsigned long stub_globals; | |
| 4077 | ||
| ee67d69a AM |
4078 | /* Set if we're linking code with function descriptors. */ |
| 4079 | unsigned int opd_abi:1; | |
| 4080 | ||
| 4c52953f | 4081 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4082 | unsigned int do_multi_toc:1; |
| 4c52953f | 4083 | unsigned int multi_toc_needed:1; |
| 927be08e | 4084 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4085 | unsigned int do_toc_opt:1; |
| 4c52953f | 4086 | |
| 5d1634d7 | 4087 | /* Set on error. */ |
| 99877b66 | 4088 | unsigned int stub_error:1; |
| 721956f4 | 4089 | |
| f6c7c3e8 | 4090 | /* Temp used by ppc64_elf_before_check_relocs. */ |
| 99877b66 | 4091 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
4092 | |
| 4093 | /* Incremented every time we size stubs. */ | |
| 4094 | unsigned int stub_iteration; | |
| 5d1634d7 | 4095 | |
| 87d72d41 AM |
4096 | /* Small local sym cache. */ |
| 4097 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4098 | }; |
| 4099 | ||
| 4c52953f AM |
4100 | /* Rename some of the generic section flags to better document how they |
| 4101 | are used here. */ | |
| b0dddeec AM |
4102 | |
| 4103 | /* Nonzero if this section has TLS related relocations. */ | |
| 4104 | #define has_tls_reloc sec_flg0 | |
| 4105 | ||
| 4106 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4107 | #define has_tls_get_addr_call sec_flg1 | |
| 4108 | ||
| 4109 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4110 | #define has_toc_reloc sec_flg2 | |
| 4111 | ||
| 4112 | /* Nonzero if this section has a call to another section that uses | |
| 4113 | the toc or got. */ | |
| d77c8a4b | 4114 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4115 | |
| 4116 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4117 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4118 | #define call_check_done sec_flg5 |
| 4c52953f | 4119 | |
| 65f38f15 AM |
4120 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4121 | ||
| 4122 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4123 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4124 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4125 | |
| 721956f4 AM |
4126 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4127 | ((struct ppc_stub_hash_entry *) \ | |
| 4128 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4129 | ||
| 4130 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4131 | ((struct ppc_branch_hash_entry *) \ | |
| 4132 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4133 | ||
| 4134 | /* Create an entry in the stub hash table. */ | |
| 4135 | ||
| 4136 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4137 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4138 | struct bfd_hash_table *table, | |
| 4139 | const char *string) | |
| 721956f4 AM |
4140 | { |
| 4141 | /* Allocate the structure if it has not already been allocated by a | |
| 4142 | subclass. */ | |
| 4143 | if (entry == NULL) | |
| 4144 | { | |
| 4145 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4146 | if (entry == NULL) | |
| 4147 | return entry; | |
| 4148 | } | |
| 4149 | ||
| 4150 | /* Call the allocation method of the superclass. */ | |
| 4151 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4152 | if (entry != NULL) | |
| 4153 | { | |
| 4154 | struct ppc_stub_hash_entry *eh; | |
| 4155 | ||
| 4156 | /* Initialize the local fields. */ | |
| 4157 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4158 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4159 | eh->group = NULL; |
| 721956f4 AM |
4160 | eh->stub_offset = 0; |
| 4161 | eh->target_value = 0; | |
| 4162 | eh->target_section = NULL; | |
| 721956f4 | 4163 | eh->h = NULL; |
| 6911b7dc | 4164 | eh->plt_ent = NULL; |
| 6911b7dc | 4165 | eh->other = 0; |
| 721956f4 AM |
4166 | } |
| 4167 | ||
| 4168 | return entry; | |
| 4169 | } | |
| 4170 | ||
| 4171 | /* Create an entry in the branch hash table. */ | |
| 4172 | ||
| 4173 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4174 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4175 | struct bfd_hash_table *table, | |
| 4176 | const char *string) | |
| 721956f4 AM |
4177 | { |
| 4178 | /* Allocate the structure if it has not already been allocated by a | |
| 4179 | subclass. */ | |
| 4180 | if (entry == NULL) | |
| 4181 | { | |
| 4182 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4183 | if (entry == NULL) | |
| 4184 | return entry; | |
| 4185 | } | |
| 4186 | ||
| 4187 | /* Call the allocation method of the superclass. */ | |
| 4188 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4189 | if (entry != NULL) | |
| 4190 | { | |
| 4191 | struct ppc_branch_hash_entry *eh; | |
| 4192 | ||
| 4193 | /* Initialize the local fields. */ | |
| 4194 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4195 | eh->offset = 0; | |
| 4196 | eh->iter = 0; | |
| 4197 | } | |
| 4198 | ||
| 4199 | return entry; | |
| 4200 | } | |
| 4201 | ||
| 65f38f15 AM |
4202 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4203 | ||
| 4204 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4205 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4206 | struct bfd_hash_table *table, | |
| 4207 | const char *string) | |
| 65f38f15 AM |
4208 | { |
| 4209 | /* Allocate the structure if it has not already been allocated by a | |
| 4210 | subclass. */ | |
| 4211 | if (entry == NULL) | |
| 4212 | { | |
| 4213 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4214 | if (entry == NULL) | |
| 4215 | return entry; | |
| 4216 | } | |
| 4217 | ||
| 4218 | /* Call the allocation method of the superclass. */ | |
| 4219 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4220 | if (entry != NULL) | |
| 4221 | { | |
| 4222 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4223 | ||
| b3fac117 | 4224 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4225 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4226 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4227 | ||
| 4228 | /* When making function calls, old ABI code references function entry | |
| 4229 | points (dot symbols), while new ABI code references the function | |
| 4230 | descriptor symbol. We need to make any combination of reference and | |
| 4231 | definition work together, without breaking archive linking. | |
| 4232 | ||
| 4233 | For a defined function "foo" and an undefined call to "bar": | |
| 4234 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4235 | "bar" too). | |
| 4236 | A new object defines "foo" and references "bar". | |
| 4237 | ||
| 4238 | A new object thus has no problem with its undefined symbols being | |
| 4239 | satisfied by definitions in an old object. On the other hand, the | |
| 4240 | old object won't have ".bar" satisfied by a new object. | |
| 4241 | ||
| 4242 | Keep a list of newly added dot-symbols. */ | |
| 4243 | ||
| 4244 | if (string[0] == '.') | |
| 4245 | { | |
| 4246 | struct ppc_link_hash_table *htab; | |
| 4247 | ||
| 4248 | htab = (struct ppc_link_hash_table *) table; | |
| 4249 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4250 | htab->dot_syms = eh; | |
| 4251 | } | |
| 65f38f15 AM |
4252 | } |
| 4253 | ||
| 4254 | return entry; | |
| 4255 | } | |
| 4256 | ||
| 3b421ab3 AM |
4257 | struct tocsave_entry { |
| 4258 | asection *sec; | |
| 4259 | bfd_vma offset; | |
| 4260 | }; | |
| 4261 | ||
| 4262 | static hashval_t | |
| 4263 | tocsave_htab_hash (const void *p) | |
| 4264 | { | |
| 4265 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4266 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4267 | } | |
| 4268 | ||
| 4269 | static int | |
| 4270 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4271 | { | |
| 4272 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4273 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4274 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4275 | } | |
| 4276 | ||
| 68faa637 AM |
4277 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4278 | ||
| 4279 | static void | |
| d495ab0d | 4280 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4281 | { |
| d495ab0d | 4282 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4283 | |
| d495ab0d | 4284 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4285 | if (htab->tocsave_htab) |
| 4286 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4287 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4288 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4289 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4290 | } |
| 4291 | ||
| 65f38f15 AM |
4292 | /* Create a ppc64 ELF linker hash table. */ |
| 4293 | ||
| 4294 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4295 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4296 | { |
| 4297 | struct ppc_link_hash_table *htab; | |
| 4298 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4299 | ||
| 4ce794b7 | 4300 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4301 | if (htab == NULL) |
| 4302 | return NULL; | |
| 4303 | ||
| 66eb6687 | 4304 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4305 | sizeof (struct ppc_link_hash_entry), |
| 4306 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4307 | { |
| e2d34d7d | 4308 | free (htab); |
| 65f38f15 AM |
4309 | return NULL; |
| 4310 | } | |
| 4311 | ||
| 721956f4 | 4312 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4313 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4314 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4315 | { |
| d495ab0d | 4316 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4317 | return NULL; |
| 4318 | } | |
| 721956f4 AM |
4319 | |
| 4320 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4321 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4322 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4323 | { |
| 4324 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4325 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4326 | return NULL; |
| 4327 | } | |
| 721956f4 | 4328 | |
| 3b421ab3 AM |
4329 | htab->tocsave_htab = htab_try_create (1024, |
| 4330 | tocsave_htab_hash, | |
| 4331 | tocsave_htab_eq, | |
| 4332 | NULL); | |
| 4333 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4334 | { |
| d495ab0d | 4335 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4336 | return NULL; |
| 4337 | } | |
| d495ab0d | 4338 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4339 | |
| 3254fd24 AM |
4340 | /* Initializing two fields of the union is just cosmetic. We really |
| 4341 | only care about glist, but when compiled on a 32-bit host the | |
| 4342 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4343 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4344 | htab->elf.init_got_refcount.refcount = 0; |
| 4345 | htab->elf.init_got_refcount.glist = NULL; | |
| 4346 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4347 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4348 | htab->elf.init_got_offset.offset = 0; | |
| 4349 | htab->elf.init_got_offset.glist = NULL; | |
| 4350 | htab->elf.init_plt_offset.offset = 0; | |
| 4351 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4352 | |
| 65f38f15 AM |
4353 | return &htab->elf.root; |
| 4354 | } | |
| 4355 | ||
| bfeb4a28 AM |
4356 | /* Create sections for linker generated code. */ |
| 4357 | ||
| 4358 | static bfd_boolean | |
| 4359 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4360 | { | |
| 4361 | struct ppc_link_hash_table *htab; | |
| 4362 | flagword flags; | |
| 4363 | ||
| 4364 | htab = ppc_hash_table (info); | |
| 4365 | ||
| bfeb4a28 AM |
4366 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4367 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4368 | if (htab->params->save_restore_funcs) |
| 4369 | { | |
| 4370 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4371 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4372 | flags); | |
| 4373 | if (htab->sfpr == NULL | |
| 4374 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4375 | return FALSE; | |
| 4376 | } | |
| 4377 | ||
| 4378 | if (bfd_link_relocatable (info)) | |
| 4379 | return TRUE; | |
| bfeb4a28 AM |
4380 | |
| 4381 | /* Create .glink for lazy dynamic linking support. */ | |
| 4382 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4383 | flags); | |
| 4384 | if (htab->glink == NULL | |
| 4385 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4386 | return FALSE; | |
| 4387 | ||
| 4388 | if (!info->no_ld_generated_unwind_info) | |
| 4389 | { | |
| 4390 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4391 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4392 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4393 | ".eh_frame", | |
| 4394 | flags); | |
| 4395 | if (htab->glink_eh_frame == NULL | |
| 4396 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4397 | return FALSE; | |
| 4398 | } | |
| 4399 | ||
| 4400 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4401 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4402 | if (htab->elf.iplt == NULL | |
| 4403 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4404 | return FALSE; |
| 4405 | ||
| 4406 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4407 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4408 | htab->elf.irelplt |
| 4409 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4410 | if (htab->elf.irelplt == NULL | |
| 4411 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4412 | return FALSE; |
| 4413 | ||
| 4414 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4415 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4416 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4417 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4418 | flags); | |
| 4419 | if (htab->brlt == NULL | |
| 4420 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4421 | return FALSE; | |
| 4422 | ||
| 0e1862bb | 4423 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4424 | return TRUE; |
| 4425 | ||
| 4426 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4427 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4428 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4429 | ".rela.branch_lt", | |
| 4430 | flags); | |
| 4431 | if (htab->relbrlt == NULL | |
| 4432 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4433 | return FALSE; | |
| 4434 | ||
| 4435 | return TRUE; | |
| 4436 | } | |
| 4437 | ||
| e717da7e AM |
4438 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4439 | ||
| bfeb4a28 | 4440 | bfd_boolean |
| e7d1c40c AM |
4441 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4442 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4443 | { |
| 4444 | struct ppc_link_hash_table *htab; | |
| 4445 | ||
| e7d1c40c | 4446 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4447 | |
| 4448 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4449 | linker created stub bfd. This ensures that the GOT header is at | |
| 4450 | the start of the output TOC section. */ | |
| 4451 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4452 | htab->elf.dynobj = params->stub_bfd; |
| 4453 | htab->params = params; | |
| bfeb4a28 | 4454 | |
| bfeb4a28 | 4455 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4456 | } |
| 4457 | ||
| 721956f4 AM |
4458 | /* Build a name for an entry in the stub hash table. */ |
| 4459 | ||
| 4460 | static char * | |
| 4ce794b7 AM |
4461 | ppc_stub_name (const asection *input_section, |
| 4462 | const asection *sym_sec, | |
| 4463 | const struct ppc_link_hash_entry *h, | |
| 4464 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4465 | { |
| 4466 | char *stub_name; | |
| bcaa2f82 | 4467 | ssize_t len; |
| 721956f4 AM |
4468 | |
| 4469 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4470 | offsets from a sym as a branch target? In fact, we could | |
| 4471 | probably assume the addend is always zero. */ | |
| 4472 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4473 | ||
| 4474 | if (h) | |
| 4475 | { | |
| 4476 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4477 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4478 | if (stub_name == NULL) |
| 4479 | return stub_name; | |
| 4480 | ||
| bcaa2f82 AM |
4481 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4482 | input_section->id & 0xffffffff, | |
| 4483 | h->elf.root.root.string, | |
| 4484 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4485 | } |
| 4486 | else | |
| 4487 | { | |
| ad8e1ba5 | 4488 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4489 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4490 | if (stub_name == NULL) |
| 4491 | return stub_name; | |
| 4492 | ||
| bcaa2f82 AM |
4493 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4494 | input_section->id & 0xffffffff, | |
| 4495 | sym_sec->id & 0xffffffff, | |
| 4496 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4497 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4498 | } |
| bcaa2f82 | 4499 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4500 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4501 | return stub_name; |
| 4502 | } | |
| 4503 | ||
| 4504 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4505 | creating the stub name takes a bit of time. */ | |
| 4506 | ||
| 4507 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4508 | ppc_get_stub_entry (const asection *input_section, |
| 4509 | const asection *sym_sec, | |
| 039b3fef | 4510 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4511 | const Elf_Internal_Rela *rel, |
| 4512 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4513 | { |
| 4514 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4515 | struct map_stub *group; |
| 721956f4 AM |
4516 | |
| 4517 | /* If this input section is part of a group of sections sharing one | |
| 4518 | stub section, then use the id of the first section in the group. | |
| 4519 | Stub names need to include a section id, as there may well be | |
| 4520 | more than one stub used to reach say, printf, and we need to | |
| 4521 | distinguish between them. */ | |
| 6f20ed8a | 4522 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4523 | if (group == NULL) |
| 4524 | return NULL; | |
| 721956f4 | 4525 | |
| b3fac117 AM |
4526 | if (h != NULL && h->u.stub_cache != NULL |
| 4527 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4528 | && h->u.stub_cache->group == group) |
| 721956f4 | 4529 | { |
| b3fac117 | 4530 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4531 | } |
| 4532 | else | |
| 4533 | { | |
| 4534 | char *stub_name; | |
| 4535 | ||
| 6f20ed8a | 4536 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4537 | if (stub_name == NULL) |
| 4538 | return NULL; | |
| 4539 | ||
| 4540 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4541 | stub_name, FALSE, FALSE); |
| 721956f4 | 4542 | if (h != NULL) |
| b3fac117 | 4543 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4544 | |
| 4545 | free (stub_name); | |
| 4546 | } | |
| 4547 | ||
| 4548 | return stub_entry; | |
| 4549 | } | |
| 4550 | ||
| 4551 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4552 | stub entry are initialised. */ | |
| 4553 | ||
| 4554 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4555 | ppc_add_stub (const char *stub_name, |
| 4556 | asection *section, | |
| 25f53a85 | 4557 | struct bfd_link_info *info) |
| 721956f4 | 4558 | { |
| 25f53a85 | 4559 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4560 | struct map_stub *group; |
| 721956f4 AM |
4561 | asection *link_sec; |
| 4562 | asection *stub_sec; | |
| 4563 | struct ppc_stub_hash_entry *stub_entry; | |
| 4564 | ||
| 6f20ed8a AM |
4565 | group = htab->sec_info[section->id].u.group; |
| 4566 | link_sec = group->link_sec; | |
| 4567 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4568 | if (stub_sec == NULL) |
| 4569 | { | |
| 6f20ed8a AM |
4570 | size_t namelen; |
| 4571 | bfd_size_type len; | |
| 4572 | char *s_name; | |
| 721956f4 | 4573 | |
| 6f20ed8a AM |
4574 | namelen = strlen (link_sec->name); |
| 4575 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4576 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4577 | if (s_name == NULL) | |
| 4578 | return NULL; | |
| 721956f4 | 4579 | |
| 6f20ed8a AM |
4580 | memcpy (s_name, link_sec->name, namelen); |
| 4581 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4582 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4583 | if (stub_sec == NULL) | |
| 4584 | return NULL; | |
| 4585 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4586 | } |
| 4587 | ||
| 4588 | /* Enter this entry into the linker stub hash table. */ | |
| 4589 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4590 | TRUE, FALSE); |
| 721956f4 AM |
4591 | if (stub_entry == NULL) |
| 4592 | { | |
| 695344c0 | 4593 | /* xgettext:c-format */ |
| 8de848d8 | 4594 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4595 | section->owner, stub_name); |
| 721956f4 AM |
4596 | return NULL; |
| 4597 | } | |
| 4598 | ||
| 6f20ed8a | 4599 | stub_entry->group = group; |
| 721956f4 | 4600 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4601 | return stub_entry; |
| 4602 | } | |
| 4603 | ||
| e717da7e AM |
4604 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4605 | not already done. */ | |
| 65f38f15 | 4606 | |
| b34976b6 | 4607 | static bfd_boolean |
| e717da7e | 4608 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4609 | { |
| e717da7e AM |
4610 | asection *got, *relgot; |
| 4611 | flagword flags; | |
| 4612 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4613 | |
| 0c8d6e5c | 4614 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4615 | return FALSE; |
| 4dfe6ac6 NC |
4616 | if (htab == NULL) |
| 4617 | return FALSE; | |
| 0ffa91dd | 4618 | |
| 33e44f2e AM |
4619 | if (!htab->elf.sgot |
| 4620 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4621 | return FALSE; | |
| e717da7e AM |
4622 | |
| 4623 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4624 | | SEC_LINKER_CREATED); | |
| 4625 | ||
| c456f082 | 4626 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4627 | if (!got |
| e717da7e AM |
4628 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4629 | return FALSE; | |
| 65f38f15 | 4630 | |
| c456f082 AM |
4631 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4632 | flags | SEC_READONLY); | |
| e717da7e | 4633 | if (!relgot |
| e717da7e | 4634 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4635 | return FALSE; |
| e717da7e AM |
4636 | |
| 4637 | ppc64_elf_tdata (abfd)->got = got; | |
| 4638 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4639 | return TRUE; |
| 65f38f15 | 4640 | } |
| 5bd4f169 | 4641 | |
| 82bd7b59 | 4642 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4643 | |
| b34976b6 | 4644 | static bfd_boolean |
| 4ce794b7 | 4645 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4646 | { |
| 65f38f15 | 4647 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4648 | |
| 65f38f15 | 4649 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4650 | return FALSE; |
| 65f38f15 | 4651 | |
| e717da7e | 4652 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4653 | if (htab == NULL) |
| 4654 | return FALSE; | |
| 4655 | ||
| 3d4d4302 | 4656 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
| 0e1862bb | 4657 | if (!bfd_link_pic (info)) |
| 3d4d4302 | 4658 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4659 | |
| 33e44f2e | 4660 | if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss |
| 0e1862bb | 4661 | || (!bfd_link_pic (info) && !htab->relbss)) |
| 65f38f15 AM |
4662 | abort (); |
| 4663 | ||
| b34976b6 | 4664 | return TRUE; |
| 5bd4f169 AM |
4665 | } |
| 4666 | ||
| b31867b6 AM |
4667 | /* Follow indirect and warning symbol links. */ |
| 4668 | ||
| 4669 | static inline struct bfd_link_hash_entry * | |
| 4670 | follow_link (struct bfd_link_hash_entry *h) | |
| 4671 | { | |
| 4672 | while (h->type == bfd_link_hash_indirect | |
| 4673 | || h->type == bfd_link_hash_warning) | |
| 4674 | h = h->u.i.link; | |
| 4675 | return h; | |
| 4676 | } | |
| 4677 | ||
| 4678 | static inline struct elf_link_hash_entry * | |
| 4679 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4680 | { | |
| 4681 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4682 | } | |
| 4683 | ||
| 4684 | static inline struct ppc_link_hash_entry * | |
| 4685 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4686 | { | |
| 4687 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4688 | } | |
| 4689 | ||
| 40d16e0b AM |
4690 | /* Merge PLT info on FROM with that on TO. */ |
| 4691 | ||
| 4692 | static void | |
| 4693 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4694 | struct ppc_link_hash_entry *to) | |
| 4695 | { | |
| 4696 | if (from->elf.plt.plist != NULL) | |
| 4697 | { | |
| 4698 | if (to->elf.plt.plist != NULL) | |
| 4699 | { | |
| 4700 | struct plt_entry **entp; | |
| 4701 | struct plt_entry *ent; | |
| 4702 | ||
| 4703 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4704 | { | |
| 4705 | struct plt_entry *dent; | |
| 4706 | ||
| 4707 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4708 | if (dent->addend == ent->addend) | |
| 4709 | { | |
| 4710 | dent->plt.refcount += ent->plt.refcount; | |
| 4711 | *entp = ent->next; | |
| 4712 | break; | |
| 4713 | } | |
| 4714 | if (dent == NULL) | |
| 4715 | entp = &ent->next; | |
| 4716 | } | |
| 4717 | *entp = to->elf.plt.plist; | |
| 4718 | } | |
| 4719 | ||
| 4720 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4721 | from->elf.plt.plist = NULL; | |
| 4722 | } | |
| 4723 | } | |
| 4724 | ||
| 65f38f15 AM |
4725 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4726 | ||
| 4727 | static void | |
| fcfa13d2 AM |
4728 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4729 | struct elf_link_hash_entry *dir, | |
| 4730 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4731 | { |
| 4732 | struct ppc_link_hash_entry *edir, *eind; | |
| 4733 | ||
| 4734 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4735 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4736 | ||
| c79d6685 AM |
4737 | edir->is_func |= eind->is_func; |
| 4738 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4739 | edir->tls_mask |= eind->tls_mask; | |
| 4740 | if (eind->oh != NULL) | |
| 4741 | edir->oh = ppc_follow_link (eind->oh); | |
| 4742 | ||
| 474436e6 AM |
4743 | if (edir->elf.versioned != versioned_hidden) |
| 4744 | { | |
| 4745 | /* If called to transfer flags for a weakdef during processing | |
| 4746 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4747 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4748 | if (!(ELIMINATE_COPY_RELOCS | |
| 4749 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4750 | && edir->elf.dynamic_adjusted)) | |
| 4751 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4752 | ||
| 4753 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4754 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4755 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4756 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4757 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| 4758 | } | |
| c79d6685 | 4759 | |
| d311bc8b AM |
4760 | /* If we were called to copy over info for a weak sym, don't copy |
| 4761 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4762 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4763 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4764 | tests about a specific symbol, or affect other symbol flags which | |
| 4765 | are then tested. | |
| 4766 | Chain weakdefs so we can get from the weakdef back to an alias. | |
| 4767 | The list is circular so that we don't need to use u.weakdef as | |
| 4768 | well as this list to look at all aliases. */ | |
| 4769 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4770 | { | |
| 4771 | struct ppc_link_hash_entry *cur, *add, *next; | |
| 4772 | ||
| 4773 | add = eind; | |
| 4774 | do | |
| 4775 | { | |
| 4776 | cur = edir->weakref; | |
| 4777 | if (cur != NULL) | |
| 4778 | { | |
| 4779 | do | |
| 4780 | { | |
| 4781 | /* We can be called twice for the same symbols. | |
| 4782 | Don't make multiple loops. */ | |
| 4783 | if (cur == add) | |
| 4784 | return; | |
| 4785 | cur = cur->weakref; | |
| 4786 | } while (cur != edir); | |
| 4787 | } | |
| 4788 | next = add->weakref; | |
| 4789 | if (cur != add) | |
| 4790 | { | |
| 4791 | add->weakref = edir->weakref != NULL ? edir->weakref : edir; | |
| 4792 | edir->weakref = add; | |
| 4793 | } | |
| 4794 | add = next; | |
| 4795 | } while (add != NULL && add != eind); | |
| 4796 | return; | |
| 4797 | } | |
| 4798 | ||
| 411e1bfb | 4799 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4800 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4801 | { |
| bbd7ec4a AM |
4802 | if (edir->dyn_relocs != NULL) |
| 4803 | { | |
| 6061a67d AM |
4804 | struct elf_dyn_relocs **pp; |
| 4805 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4806 | |
| fcfa13d2 | 4807 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4808 | list. Merge any entries against the same section. */ |
| 4809 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4810 | { | |
| 6061a67d | 4811 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4812 | |
| 4813 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4814 | if (q->sec == p->sec) | |
| 4815 | { | |
| 4816 | q->pc_count += p->pc_count; | |
| 4817 | q->count += p->count; | |
| 4818 | *pp = p->next; | |
| 4819 | break; | |
| 4820 | } | |
| 4821 | if (q == NULL) | |
| 4822 | pp = &p->next; | |
| 4823 | } | |
| 4824 | *pp = edir->dyn_relocs; | |
| 4825 | } | |
| 4826 | ||
| 65f38f15 AM |
4827 | edir->dyn_relocs = eind->dyn_relocs; |
| 4828 | eind->dyn_relocs = NULL; | |
| 4829 | } | |
| 65f38f15 | 4830 | |
| 81848ca0 AM |
4831 | /* Copy over got entries that we may have already seen to the |
| 4832 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4833 | if (eind->elf.got.glist != NULL) |
| 4834 | { | |
| 4835 | if (edir->elf.got.glist != NULL) | |
| 4836 | { | |
| 4837 | struct got_entry **entp; | |
| 4838 | struct got_entry *ent; | |
| 4839 | ||
| 4840 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4841 | { | |
| 4842 | struct got_entry *dent; | |
| 4843 | ||
| 4844 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4845 | if (dent->addend == ent->addend | |
| e717da7e | 4846 | && dent->owner == ent->owner |
| 411e1bfb AM |
4847 | && dent->tls_type == ent->tls_type) |
| 4848 | { | |
| 4849 | dent->got.refcount += ent->got.refcount; | |
| 4850 | *entp = ent->next; | |
| 4851 | break; | |
| 4852 | } | |
| 4853 | if (dent == NULL) | |
| 4854 | entp = &ent->next; | |
| 4855 | } | |
| 4856 | *entp = edir->elf.got.glist; | |
| 4857 | } | |
| 4858 | ||
| 4859 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4860 | eind->elf.got.glist = NULL; | |
| 4861 | } | |
| 4862 | ||
| 4863 | /* And plt entries. */ | |
| 40d16e0b | 4864 | move_plt_plist (eind, edir); |
| 411e1bfb | 4865 | |
| fcfa13d2 | 4866 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4867 | { |
| fcfa13d2 AM |
4868 | if (edir->elf.dynindx != -1) |
| 4869 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4870 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4871 | edir->elf.dynindx = eind->elf.dynindx; |
| 4872 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4873 | eind->elf.dynindx = -1; | |
| 4874 | eind->elf.dynstr_index = 0; | |
| 4875 | } | |
| 411e1bfb AM |
4876 | } |
| 4877 | ||
| 8387904d AM |
4878 | /* Find the function descriptor hash entry from the given function code |
| 4879 | hash entry FH. Link the entries via their OH fields. */ | |
| 4880 | ||
| 4881 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4882 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4883 | { |
| 4884 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4885 | ||
| 4886 | if (fdh == NULL) | |
| 4887 | { | |
| 4888 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4889 | ||
| 4890 | fdh = (struct ppc_link_hash_entry *) | |
| 4891 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4892 | if (fdh == NULL) |
| 4893 | return fdh; | |
| 4894 | ||
| 4895 | fdh->is_func_descriptor = 1; | |
| 4896 | fdh->oh = fh; | |
| 4897 | fh->is_func = 1; | |
| 4898 | fh->oh = fdh; | |
| 8387904d AM |
4899 | } |
| 4900 | ||
| b31867b6 | 4901 | return ppc_follow_link (fdh); |
| 8387904d AM |
4902 | } |
| 4903 | ||
| bb700d78 AM |
4904 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4905 | ||
| 4906 | static struct ppc_link_hash_entry * | |
| 4907 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4908 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4909 | { |
| 4910 | bfd *abfd; | |
| 4911 | asymbol *newsym; | |
| 4912 | struct bfd_link_hash_entry *bh; | |
| 4913 | struct ppc_link_hash_entry *fdh; | |
| 4914 | ||
| 4915 | abfd = fh->elf.root.u.undef.abfd; | |
| 4916 | newsym = bfd_make_empty_symbol (abfd); | |
| 4917 | newsym->name = fh->elf.root.root.string + 1; | |
| 4918 | newsym->section = bfd_und_section_ptr; | |
| 4919 | newsym->value = 0; | |
| 908b32fc | 4920 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4921 | |
| 4922 | bh = NULL; | |
| 4923 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4924 | newsym->flags, newsym->section, | |
| 4925 | newsym->value, NULL, FALSE, FALSE, | |
| 4926 | &bh)) | |
| 4927 | return NULL; | |
| 4928 | ||
| 4929 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4930 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4931 | fdh->fake = 1; |
| 4932 | fdh->is_func_descriptor = 1; | |
| 4933 | fdh->oh = fh; | |
| 4934 | fh->is_func = 1; | |
| 4935 | fh->oh = fdh; | |
| bb700d78 AM |
4936 | return fdh; |
| 4937 | } | |
| 4938 | ||
| 8387904d AM |
4939 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4940 | function type. */ | |
| 555cd476 AM |
4941 | |
| 4942 | static bfd_boolean | |
| c16153ae | 4943 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4944 | struct bfd_link_info *info, |
| 555cd476 | 4945 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4946 | const char **name, |
| 555cd476 AM |
4947 | flagword *flags ATTRIBUTE_UNUSED, |
| 4948 | asection **sec, | |
| b53dfeb2 | 4949 | bfd_vma *value) |
| 555cd476 | 4950 | { |
| a43942db | 4951 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4952 | && (ibfd->flags & DYNAMIC) == 0 |
| 4953 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4954 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4955 | |
| b53dfeb2 | 4956 | if (*sec != NULL |
| f1885d1e | 4957 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4958 | { |
| 4959 | asection *code_sec; | |
| 4960 | ||
| 4961 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4962 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4963 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4964 | ||
| 4965 | /* If the symbol is a function defined in .opd, and the function | |
| 4966 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4967 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4968 | && (*sec)->reloc_count != 0 |
| 4969 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4970 | FALSE) != (bfd_vma) -1 | |
| 4971 | && discarded_section (code_sec)) | |
| 4972 | { | |
| 4973 | *sec = bfd_und_section_ptr; | |
| 4974 | isym->st_shndx = SHN_UNDEF; | |
| 4975 | } | |
| 4976 | } | |
| dbd1e97e AM |
4977 | else if (*sec != NULL |
| 4978 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4979 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4980 | { | |
| 4981 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4982 | if (htab != NULL) | |
| 4983 | htab->params->object_in_toc = 1; | |
| 4984 | } | |
| 433817dd | 4985 | |
| 6911b7dc AM |
4986 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4987 | { | |
| 4988 | if (abiversion (ibfd) == 0) | |
| 4989 | set_abiversion (ibfd, 2); | |
| 4990 | else if (abiversion (ibfd) == 1) | |
| 4991 | { | |
| 4992 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4993 | " for ABI version 1\n"), name); | |
| 4994 | bfd_set_error (bfd_error_bad_value); | |
| 4995 | return FALSE; | |
| 4996 | } | |
| 4997 | } | |
| 4998 | ||
| 555cd476 AM |
4999 | return TRUE; |
| 5000 | } | |
| 5001 | ||
| 6911b7dc AM |
5002 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 5003 | ||
| 5004 | static void | |
| 5005 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5006 | const Elf_Internal_Sym *isym, | |
| 5007 | bfd_boolean definition, | |
| 5008 | bfd_boolean dynamic) | |
| 5009 | { | |
| 5010 | if (definition && !dynamic) | |
| 5011 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 5012 | | ELF_ST_VISIBILITY (h->other)); | |
| 5013 | } | |
| 5014 | ||
| 8387904d | 5015 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5016 | inclusion of a new ABI object archive that defines "bar". |
| 5017 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5018 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5019 | |
| 5020 | static struct elf_link_hash_entry * | |
| 5021 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5022 | struct bfd_link_info *info, | |
| 5023 | const char *name) | |
| 5024 | { | |
| 5025 | struct elf_link_hash_entry *h; | |
| 5026 | char *dot_name; | |
| 5027 | size_t len; | |
| 5028 | ||
| 5029 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5030 | if (h != NULL |
| 5031 | /* Don't return this sym if it is a fake function descriptor | |
| 5032 | created by add_symbol_adjust. */ | |
| 5033 | && !(h->root.type == bfd_link_hash_undefweak | |
| 5034 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
5035 | return h; |
| 5036 | ||
| 5037 | if (name[0] == '.') | |
| 5038 | return h; | |
| 5039 | ||
| 5040 | len = strlen (name); | |
| 5041 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5042 | if (dot_name == NULL) | |
| 5043 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 5044 | dot_name[0] = '.'; | |
| 5045 | memcpy (dot_name + 1, name, len + 1); | |
| 5046 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5047 | bfd_release (abfd, dot_name); | |
| 5048 | return h; | |
| 5049 | } | |
| 5050 | ||
| 5051 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5052 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5053 | are made weak. This stops later archive searches from including an | |
| 5054 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5055 | prevents the linker complaining about undefined symbols. |
| 5056 | We also check and correct mismatched symbol visibility here. The | |
| 5057 | most restrictive visibility of the function descriptor and the | |
| 5058 | function entry symbol is used. */ | |
| 8387904d AM |
5059 | |
| 5060 | static bfd_boolean | |
| b3fac117 | 5061 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5062 | { |
| 8387904d AM |
5063 | struct ppc_link_hash_table *htab; |
| 5064 | struct ppc_link_hash_entry *fdh; | |
| 5065 | ||
| b3fac117 AM |
5066 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5067 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5068 | |
| 8400d40d AM |
5069 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5070 | return TRUE; | |
| 5071 | ||
| b3fac117 AM |
5072 | if (eh->elf.root.root.string[0] != '.') |
| 5073 | abort (); | |
| 8387904d | 5074 | |
| b3fac117 | 5075 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5076 | if (htab == NULL) |
| 5077 | return FALSE; | |
| 5078 | ||
| b31867b6 AM |
5079 | fdh = lookup_fdh (eh, htab); |
| 5080 | if (fdh == NULL) | |
| 5081 | { | |
| 0e1862bb | 5082 | if (!bfd_link_relocatable (info) |
| b31867b6 AM |
5083 | && (eh->elf.root.type == bfd_link_hash_undefined |
| 5084 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5085 | && eh->elf.ref_regular) | |
| 5086 | { | |
| 5087 | /* Make an undefweak function descriptor sym, which is enough to | |
| 5088 | pull in an --as-needed shared lib, but won't cause link | |
| 5089 | errors. Archives are handled elsewhere. */ | |
| 5090 | fdh = make_fdh (info, eh); | |
| 5091 | if (fdh == NULL) | |
| 5092 | return FALSE; | |
| 5093 | fdh->elf.ref_regular = 1; | |
| 5094 | } | |
| bb700d78 | 5095 | } |
| b31867b6 | 5096 | else |
| 8387904d | 5097 | { |
| 35b0ce59 AM |
5098 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5099 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 5100 | if (entry_vis < descr_vis) | |
| 5101 | fdh->elf.other += entry_vis - descr_vis; | |
| 5102 | else if (entry_vis > descr_vis) | |
| 5103 | eh->elf.other += descr_vis - entry_vis; | |
| 5104 | ||
| e87d886e AM |
5105 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 5106 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 5107 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
5108 | { |
| 5109 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 5110 | eh->was_undefined = 1; | |
| 5111 | htab->twiddled_syms = 1; | |
| 5112 | } | |
| 8387904d | 5113 | } |
| 99877b66 | 5114 | |
| 8387904d AM |
5115 | return TRUE; |
| 5116 | } | |
| 5117 | ||
| f6c7c3e8 AM |
5118 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5119 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5120 | |
| 8387904d | 5121 | static bfd_boolean |
| f6c7c3e8 | 5122 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5123 | { |
| 99877b66 | 5124 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5125 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5126 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5127 | |
| 459609d6 | 5128 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5129 | { |
| 459609d6 AM |
5130 | if (abiversion (ibfd) == 0) |
| 5131 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5132 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5133 | { |
| 695344c0 | 5134 | /* xgettext:c-format */ |
| 459609d6 AM |
5135 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5136 | " version %d\n"), | |
| 5137 | ibfd, abiversion (ibfd)); | |
| 5138 | bfd_set_error (bfd_error_bad_value); | |
| 5139 | return FALSE; | |
| f6c7c3e8 AM |
5140 | } |
| 5141 | ||
| 459609d6 AM |
5142 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5143 | && (opd->flags & SEC_RELOC) != 0 | |
| 5144 | && opd->reloc_count != 0 | |
| 5145 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5146 | { |
| 459609d6 AM |
5147 | /* Garbage collection needs some extra help with .opd sections. |
| 5148 | We don't want to necessarily keep everything referenced by | |
| 5149 | relocs in .opd, as that would keep all functions. Instead, | |
| 5150 | if we reference an .opd symbol (a function descriptor), we | |
| 5151 | want to keep the function code symbol's section. This is | |
| 5152 | easy for global symbols, but for local syms we need to keep | |
| 5153 | information about the associated function section. */ | |
| 5154 | bfd_size_type amt; | |
| 5155 | asection **opd_sym_map; | |
| 5156 | ||
| 51aecdc5 | 5157 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5158 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5159 | if (opd_sym_map == NULL) | |
| b3fac117 | 5160 | return FALSE; |
| 459609d6 AM |
5161 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5162 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5163 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5164 | } |
| 5165 | } | |
| 5166 | ||
| 459609d6 AM |
5167 | if (!is_ppc64_elf (info->output_bfd)) |
| 5168 | return TRUE; | |
| 5169 | htab = ppc_hash_table (info); | |
| 5170 | if (htab == NULL) | |
| 5171 | return FALSE; | |
| 5172 | ||
| 5173 | /* For input files without an explicit abiversion in e_flags | |
| 5174 | we should have flagged any with symbol st_other bits set | |
| 5175 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5176 | Set the output abiversion if not yet set, and for any input | |
| 5177 | still ambiguous, take its abiversion from the output. | |
| 5178 | Differences in ABI are reported later. */ | |
| 5179 | if (abiversion (info->output_bfd) == 0) | |
| 5180 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5181 | else if (abiversion (ibfd) == 0) | |
| 5182 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5183 | ||
| 5184 | p = &htab->dot_syms; | |
| 5185 | while ((eh = *p) != NULL) | |
| 5186 | { | |
| 5187 | *p = NULL; | |
| 5188 | if (&eh->elf == htab->elf.hgot) | |
| 5189 | ; | |
| 5190 | else if (htab->elf.hgot == NULL | |
| 5191 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5192 | htab->elf.hgot = &eh->elf; | |
| 5193 | else if (!add_symbol_adjust (eh, info)) | |
| 5194 | return FALSE; | |
| 5195 | p = &eh->u.next_dot_sym; | |
| 5196 | } | |
| 5197 | ||
| 99877b66 | 5198 | /* We need to fix the undefs list for any syms we have twiddled to |
| 57e7d118 | 5199 | undefweak. */ |
| 99877b66 AM |
5200 | if (htab->twiddled_syms) |
| 5201 | { | |
| 77cfaee6 | 5202 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
5203 | htab->twiddled_syms = 0; |
| 5204 | } | |
| b3fac117 | 5205 | return TRUE; |
| 8387904d AM |
5206 | } |
| 5207 | ||
| 97fed1c9 JJ |
5208 | /* Undo hash table changes when an --as-needed input file is determined |
| 5209 | not to be needed. */ | |
| 5210 | ||
| 5211 | static bfd_boolean | |
| e5034e59 AM |
5212 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5213 | struct bfd_link_info *info, | |
| 5214 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5215 | { |
| e5034e59 AM |
5216 | if (act == notice_not_needed) |
| 5217 | { | |
| 5218 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5219 | |
| e5034e59 AM |
5220 | if (htab == NULL) |
| 5221 | return FALSE; | |
| 4dfe6ac6 | 5222 | |
| e5034e59 AM |
5223 | htab->dot_syms = NULL; |
| 5224 | } | |
| 5225 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5226 | } |
| 5227 | ||
| aa374f67 AM |
5228 | /* If --just-symbols against a final linked binary, then assume we need |
| 5229 | toc adjusting stubs when calling functions defined there. */ | |
| 5230 | ||
| 5231 | static void | |
| 5232 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5233 | { | |
| 5234 | if ((sec->flags & SEC_CODE) != 0 | |
| 5235 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5236 | && is_ppc64_elf (sec->owner)) | |
| 5237 | { | |
| 2c3f079f AM |
5238 | if (abiversion (sec->owner) >= 2 |
| 5239 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5240 | sec->has_toc_reloc = 1; |
| 5241 | } | |
| 5242 | _bfd_elf_link_just_syms (sec, info); | |
| 5243 | } | |
| 5244 | ||
| e054468f | 5245 | static struct plt_entry ** |
| 4ce794b7 AM |
5246 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5247 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5248 | { |
| 5249 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5250 | struct plt_entry **local_plt; |
| f961d9dd | 5251 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5252 | |
| 5253 | if (local_got_ents == NULL) | |
| 5254 | { | |
| 5255 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5256 | ||
| e054468f AM |
5257 | size *= (sizeof (*local_got_ents) |
| 5258 | + sizeof (*local_plt) | |
| 5259 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5260 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5261 | if (local_got_ents == NULL) |
| e054468f | 5262 | return NULL; |
| 411e1bfb AM |
5263 | elf_local_got_ents (abfd) = local_got_ents; |
| 5264 | } | |
| 5265 | ||
| e054468f | 5266 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5267 | { |
| 5268 | struct got_entry *ent; | |
| 5269 | ||
| 5270 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5271 | if (ent->addend == r_addend |
| 5272 | && ent->owner == abfd | |
| 5273 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5274 | break; |
| 5275 | if (ent == NULL) | |
| 5276 | { | |
| 5277 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5278 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5279 | if (ent == NULL) |
| 5280 | return FALSE; | |
| 5281 | ent->next = local_got_ents[r_symndx]; | |
| 5282 | ent->addend = r_addend; | |
| e717da7e | 5283 | ent->owner = abfd; |
| 411e1bfb | 5284 | ent->tls_type = tls_type; |
| 927be08e | 5285 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5286 | ent->got.refcount = 0; |
| 5287 | local_got_ents[r_symndx] = ent; | |
| 5288 | } | |
| 5289 | ent->got.refcount += 1; | |
| 5290 | } | |
| 5291 | ||
| e054468f | 5292 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5293 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5294 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5295 | |
| 5296 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5297 | } |
| 5298 | ||
| 411e1bfb | 5299 | static bfd_boolean |
| e054468f | 5300 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5301 | { |
| 411e1bfb | 5302 | struct plt_entry *ent; |
| 1e2f5b6e | 5303 | |
| e054468f | 5304 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5305 | if (ent->addend == addend) |
| 5306 | break; | |
| 5307 | if (ent == NULL) | |
| 1e2f5b6e | 5308 | { |
| 411e1bfb | 5309 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5310 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5311 | if (ent == NULL) |
| 5312 | return FALSE; | |
| e054468f | 5313 | ent->next = *plist; |
| 411e1bfb AM |
5314 | ent->addend = addend; |
| 5315 | ent->plt.refcount = 0; | |
| e054468f | 5316 | *plist = ent; |
| 1e2f5b6e | 5317 | } |
| 411e1bfb | 5318 | ent->plt.refcount += 1; |
| b34976b6 | 5319 | return TRUE; |
| 1e2f5b6e AM |
5320 | } |
| 5321 | ||
| e054468f AM |
5322 | static bfd_boolean |
| 5323 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5324 | { | |
| 5325 | return (r_type == R_PPC64_REL24 | |
| 5326 | || r_type == R_PPC64_REL14 | |
| 5327 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5328 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5329 | || r_type == R_PPC64_ADDR24 | |
| 5330 | || r_type == R_PPC64_ADDR14 | |
| 5331 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5332 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5333 | } | |
| 5334 | ||
| 5bd4f169 | 5335 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5336 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5337 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5338 | |
| b34976b6 | 5339 | static bfd_boolean |
| 4ce794b7 AM |
5340 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5341 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5342 | { |
| 65f38f15 | 5343 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5344 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5345 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5346 | const Elf_Internal_Rela *rel; |
| 5347 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5348 | asection *sreloc; |
| 1e2f5b6e | 5349 | asection **opd_sym_map; |
| 3a71aa26 | 5350 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5351 | |
| 0e1862bb | 5352 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5353 | return TRUE; |
| 5bd4f169 | 5354 | |
| 680a3378 AM |
5355 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5356 | In particular, any relocs in such sections should not affect GOT | |
| 5357 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5358 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5359 | relocs, and there's not much point in propagating relocs to shared | |
| 5360 | libs that the dynamic linker won't relocate. */ | |
| 5361 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5362 | return TRUE; | |
| 5363 | ||
| 0c8d6e5c | 5364 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5365 | |
| 65f38f15 | 5366 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5367 | if (htab == NULL) |
| 5368 | return FALSE; | |
| 5369 | ||
| 3a71aa26 AM |
5370 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5371 | FALSE, FALSE, TRUE); | |
| 5372 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5373 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5374 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5375 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5376 | sreloc = NULL; |
| 1e2f5b6e | 5377 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5378 | if (ppc64_elf_section_data (sec) != NULL |
| 5379 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5380 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5381 | |
| 5382 | rel_end = relocs + sec->reloc_count; | |
| 5383 | for (rel = relocs; rel < rel_end; rel++) | |
| 5384 | { | |
| 5385 | unsigned long r_symndx; | |
| 5386 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5387 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5388 | int tls_type; |
| 7c8fe5c4 | 5389 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5390 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5391 | |
| 5392 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5393 | if (r_symndx < symtab_hdr->sh_info) | |
| 5394 | h = NULL; | |
| 5395 | else | |
| 973a3492 L |
5396 | { |
| 5397 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5398 | h = elf_follow_link (h); |
| 81fbe831 AM |
5399 | |
| 5400 | /* PR15323, ref flags aren't set for references in the same | |
| 5401 | object. */ | |
| 5402 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5403 | |
| 5404 | if (h == htab->elf.hgot) | |
| 5405 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5406 | } |
| 5bd4f169 | 5407 | |
| 727fc41e | 5408 | tls_type = 0; |
| e054468f | 5409 | ifunc = NULL; |
| 25f23106 AM |
5410 | if (h != NULL) |
| 5411 | { | |
| 5412 | if (h->type == STT_GNU_IFUNC) | |
| 5413 | { | |
| 5414 | h->needs_plt = 1; | |
| 5415 | ifunc = &h->plt.plist; | |
| 5416 | } | |
| 5417 | } | |
| 5418 | else | |
| 5419 | { | |
| 5420 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5421 | abfd, r_symndx); | |
| 5422 | if (isym == NULL) | |
| 5423 | return FALSE; | |
| 5424 | ||
| 5425 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5426 | { | |
| 5427 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5428 | rel->r_addend, PLT_IFUNC); | |
| 5429 | if (ifunc == NULL) | |
| 5430 | return FALSE; | |
| 5431 | } | |
| 5432 | } | |
| 727fc41e | 5433 | |
| cbf95972 | 5434 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5435 | switch (r_type) |
| 5bd4f169 | 5436 | { |
| 727fc41e AM |
5437 | case R_PPC64_TLSGD: |
| 5438 | case R_PPC64_TLSLD: | |
| 5439 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5440 | its parameter symbol. */ | |
| 5441 | break; | |
| 5442 | ||
| 411e1bfb AM |
5443 | case R_PPC64_GOT_TLSLD16: |
| 5444 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5445 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5446 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5447 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5448 | goto dogottls; |
| 5449 | ||
| 5450 | case R_PPC64_GOT_TLSGD16: | |
| 5451 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5452 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5453 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5454 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5455 | goto dogottls; |
| 5456 | ||
| 5457 | case R_PPC64_GOT_TPREL16_DS: | |
| 5458 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5459 | case R_PPC64_GOT_TPREL16_HI: | |
| 5460 | case R_PPC64_GOT_TPREL16_HA: | |
| 0e1862bb | 5461 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5462 | info->flags |= DF_STATIC_TLS; |
| 5463 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5464 | goto dogottls; | |
| 5465 | ||
| 5466 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5467 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5468 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5469 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5470 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5471 | dogottls: | |
| 5472 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5473 | /* Fall through */ |
| 411e1bfb | 5474 | |
| 5bd4f169 | 5475 | case R_PPC64_GOT16: |
| 5bd4f169 | 5476 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5477 | case R_PPC64_GOT16_HA: |
| 5478 | case R_PPC64_GOT16_HI: | |
| 5479 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5480 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5481 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5482 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5483 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5484 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5485 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5486 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5487 | || r_type == R_PPC64_GOT16 | |
| 5488 | || r_type == R_PPC64_GOT16_DS) | |
| 5489 | { | |
| 5490 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5491 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5492 | } |
| 5493 | ||
| e717da7e AM |
5494 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5495 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5496 | return FALSE; |
| 5bd4f169 AM |
5497 | |
| 5498 | if (h != NULL) | |
| 5499 | { | |
| 411e1bfb AM |
5500 | struct ppc_link_hash_entry *eh; |
| 5501 | struct got_entry *ent; | |
| 65f38f15 | 5502 | |
| 411e1bfb AM |
5503 | eh = (struct ppc_link_hash_entry *) h; |
| 5504 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5505 | if (ent->addend == rel->r_addend | |
| e717da7e | 5506 | && ent->owner == abfd |
| 411e1bfb AM |
5507 | && ent->tls_type == tls_type) |
| 5508 | break; | |
| 5509 | if (ent == NULL) | |
| 5bd4f169 | 5510 | { |
| 411e1bfb | 5511 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5512 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5513 | if (ent == NULL) |
| b34976b6 | 5514 | return FALSE; |
| 411e1bfb AM |
5515 | ent->next = eh->elf.got.glist; |
| 5516 | ent->addend = rel->r_addend; | |
| e717da7e | 5517 | ent->owner = abfd; |
| 411e1bfb | 5518 | ent->tls_type = tls_type; |
| 927be08e | 5519 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5520 | ent->got.refcount = 0; |
| 5521 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5522 | } |
| 411e1bfb | 5523 | ent->got.refcount += 1; |
| e7b938ca | 5524 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5525 | } |
| 411e1bfb AM |
5526 | else |
| 5527 | /* This is a global offset table entry for a local symbol. */ | |
| 5528 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5529 | rel->r_addend, tls_type)) | |
| 5530 | return FALSE; | |
| a345bc8d AM |
5531 | |
| 5532 | /* We may also need a plt entry if the symbol turns out to be | |
| 5533 | an ifunc. */ | |
| 0e1862bb | 5534 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5535 | { |
| 5536 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5537 | return FALSE; | |
| 5538 | } | |
| 5bd4f169 AM |
5539 | break; |
| 5540 | ||
| 5bd4f169 | 5541 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5542 | case R_PPC64_PLT16_HI: |
| 5543 | case R_PPC64_PLT16_LO: | |
| 5544 | case R_PPC64_PLT32: | |
| 5545 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5546 | /* This symbol requires a procedure linkage table entry. */ |
| 5547 | plt_list = ifunc; | |
| 5548 | if (h != NULL) | |
| e054468f | 5549 | { |
| e054468f AM |
5550 | h->needs_plt = 1; |
| 5551 | if (h->root.root.string[0] == '.' | |
| 5552 | && h->root.root.string[1] != '\0') | |
| 5553 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5554 | plt_list = &h->plt.plist; |
| 5555 | } | |
| 5556 | if (plt_list == NULL) | |
| 5557 | { | |
| 5558 | /* It does not make sense to have a procedure linkage | |
| 5559 | table entry for a non-ifunc local symbol. */ | |
| 5560 | info->callbacks->einfo | |
| 695344c0 | 5561 | /* xgettext:c-format */ |
| cbf95972 AM |
5562 | (_("%P: %H: %s reloc against local symbol\n"), |
| 5563 | abfd, sec, rel->r_offset, | |
| 5564 | ppc64_elf_howto_table[r_type]->name); | |
| 5565 | bfd_set_error (bfd_error_bad_value); | |
| 5566 | return FALSE; | |
| e054468f | 5567 | } |
| cbf95972 AM |
5568 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5569 | return FALSE; | |
| 5bd4f169 AM |
5570 | break; |
| 5571 | ||
| 5572 | /* The following relocations don't need to propagate the | |
| 5573 | relocation if linking a shared object since they are | |
| 5574 | section relative. */ | |
| 5575 | case R_PPC64_SECTOFF: | |
| 5576 | case R_PPC64_SECTOFF_LO: | |
| 5577 | case R_PPC64_SECTOFF_HI: | |
| 5578 | case R_PPC64_SECTOFF_HA: | |
| 5579 | case R_PPC64_SECTOFF_DS: | |
| 5580 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5581 | case R_PPC64_DTPREL16: |
| 5582 | case R_PPC64_DTPREL16_LO: | |
| 5583 | case R_PPC64_DTPREL16_HI: | |
| 5584 | case R_PPC64_DTPREL16_HA: | |
| 5585 | case R_PPC64_DTPREL16_DS: | |
| 5586 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5587 | case R_PPC64_DTPREL16_HIGH: |
| 5588 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5589 | case R_PPC64_DTPREL16_HIGHER: |
| 5590 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5591 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5592 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5593 | break; |
| 5594 | ||
| ad8e1ba5 | 5595 | /* Nor do these. */ |
| 25f23106 AM |
5596 | case R_PPC64_REL16: |
| 5597 | case R_PPC64_REL16_LO: | |
| 5598 | case R_PPC64_REL16_HI: | |
| 5599 | case R_PPC64_REL16_HA: | |
| a680de9a | 5600 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5601 | break; |
| 5602 | ||
| 45965137 AM |
5603 | /* Not supported as a dynamic relocation. */ |
| 5604 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5605 | if (bfd_link_pic (info)) |
| 45965137 AM |
5606 | { |
| 5607 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5608 | ppc_howto_init (); | |
| 695344c0 | 5609 | /* xgettext:c-format */ |
| 45965137 AM |
5610 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " |
| 5611 | "in shared libraries and PIEs.\n"), | |
| 5612 | abfd, sec, rel->r_offset, | |
| 5613 | ppc64_elf_howto_table[r_type]->name); | |
| 5614 | bfd_set_error (bfd_error_bad_value); | |
| 5615 | return FALSE; | |
| 5616 | } | |
| 5617 | break; | |
| 5618 | ||
| ad8e1ba5 | 5619 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5620 | case R_PPC64_TOC16_DS: |
| 5621 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5622 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5623 | /* Fall through. */ |
| ad8e1ba5 AM |
5624 | case R_PPC64_TOC16_LO: |
| 5625 | case R_PPC64_TOC16_HI: | |
| 5626 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5627 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5628 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5629 | break; |
| 5630 | ||
| 006589cf AM |
5631 | /* Marker reloc. */ |
| 5632 | case R_PPC64_ENTRY: | |
| 5633 | break; | |
| 5634 | ||
| 5bd4f169 AM |
5635 | /* This relocation describes the C++ object vtable hierarchy. |
| 5636 | Reconstruct it for later use during GC. */ | |
| 5637 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5638 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5639 | return FALSE; |
| 5bd4f169 AM |
5640 | break; |
| 5641 | ||
| 5642 | /* This relocation describes which C++ vtable entries are actually | |
| 5643 | used. Record for later use during GC. */ | |
| 5644 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5645 | BFD_ASSERT (h != NULL); |
| 5646 | if (h != NULL | |
| 5647 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5648 | return FALSE; |
| 5bd4f169 AM |
5649 | break; |
| 5650 | ||
| 721956f4 AM |
5651 | case R_PPC64_REL14: |
| 5652 | case R_PPC64_REL14_BRTAKEN: | |
| 5653 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5654 | { |
| 5655 | asection *dest = NULL; | |
| 5656 | ||
| 5657 | /* Heuristic: If jumping outside our section, chances are | |
| 5658 | we are going to need a stub. */ | |
| 5659 | if (h != NULL) | |
| 5660 | { | |
| 5661 | /* If the sym is weak it may be overridden later, so | |
| 5662 | don't assume we know where a weak sym lives. */ | |
| 5663 | if (h->root.type == bfd_link_hash_defined) | |
| 5664 | dest = h->root.u.def.section; | |
| 5665 | } | |
| 5666 | else | |
| 87d72d41 AM |
5667 | { |
| 5668 | Elf_Internal_Sym *isym; | |
| 5669 | ||
| 5670 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5671 | abfd, r_symndx); | |
| 5672 | if (isym == NULL) | |
| 5673 | return FALSE; | |
| 5674 | ||
| 5675 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5676 | } | |
| 5677 | ||
| 220c76dd | 5678 | if (dest != sec) |
| 7c8fe5c4 | 5679 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5680 | } |
| 721956f4 AM |
5681 | /* Fall through. */ |
| 5682 | ||
| 5d1634d7 | 5683 | case R_PPC64_REL24: |
| cbf95972 AM |
5684 | plt_list = ifunc; |
| 5685 | if (h != NULL) | |
| 5d1634d7 | 5686 | { |
| e054468f AM |
5687 | h->needs_plt = 1; |
| 5688 | if (h->root.root.string[0] == '.' | |
| 5689 | && h->root.root.string[1] != '\0') | |
| 5690 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5691 | |
| 3a71aa26 | 5692 | if (h == tga || h == dottga) |
| cbf95972 AM |
5693 | { |
| 5694 | sec->has_tls_reloc = 1; | |
| 5695 | if (rel != relocs | |
| 5696 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5697 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5698 | /* We have a new-style __tls_get_addr call with | |
| 5699 | a marker reloc. */ | |
| 5700 | ; | |
| 5701 | else | |
| 5702 | /* Mark this section as having an old-style call. */ | |
| 5703 | sec->has_tls_get_addr_call = 1; | |
| 5704 | } | |
| 5705 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5706 | } |
| cbf95972 AM |
5707 | |
| 5708 | /* We may need a .plt entry if the function this reloc | |
| 5709 | refers to is in a shared lib. */ | |
| 5710 | if (plt_list | |
| 5711 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5712 | return FALSE; | |
| 411e1bfb AM |
5713 | break; |
| 5714 | ||
| cbf95972 AM |
5715 | case R_PPC64_ADDR14: |
| 5716 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5717 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5718 | case R_PPC64_ADDR24: | |
| 5719 | goto dodyn; | |
| 5720 | ||
| 411e1bfb AM |
5721 | case R_PPC64_TPREL64: |
| 5722 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 0e1862bb | 5723 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5724 | info->flags |= DF_STATIC_TLS; |
| 5725 | goto dotlstoc; | |
| 5726 | ||
| 5727 | case R_PPC64_DTPMOD64: | |
| 5728 | if (rel + 1 < rel_end | |
| 5729 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5730 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5731 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5732 | else |
| 951fd09b | 5733 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5734 | goto dotlstoc; |
| 5735 | ||
| 5736 | case R_PPC64_DTPREL64: | |
| 5737 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5738 | if (rel != relocs | |
| 5739 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5740 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5741 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5742 | Don't mark with TLS_DTPREL. */ | |
| 5743 | goto dodyn; | |
| 5744 | ||
| 5745 | dotlstoc: | |
| 5746 | sec->has_tls_reloc = 1; | |
| 5747 | if (h != NULL) | |
| 5748 | { | |
| 5749 | struct ppc_link_hash_entry *eh; | |
| 5750 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5751 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5752 | } |
| 5753 | else | |
| 5754 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5755 | rel->r_addend, tls_type)) | |
| 5756 | return FALSE; | |
| 5757 | ||
| 7c8fe5c4 AM |
5758 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5759 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5760 | { |
| 3a71aa26 AM |
5761 | bfd_size_type amt; |
| 5762 | ||
| e7b938ca | 5763 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5764 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5765 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5766 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5767 | return FALSE; | |
| 5768 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5769 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5770 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5771 | return FALSE; |
| 7c8fe5c4 AM |
5772 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5773 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5774 | } |
| 5775 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5776 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5777 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5778 | |
| 5779 | /* Mark the second slot of a GD or LD entry. | |
| 5780 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5781 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5782 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5783 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5784 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5785 | goto dodyn; |
| 5786 | ||
| 5787 | case R_PPC64_TPREL16: | |
| 5788 | case R_PPC64_TPREL16_LO: | |
| 5789 | case R_PPC64_TPREL16_HI: | |
| 5790 | case R_PPC64_TPREL16_HA: | |
| 5791 | case R_PPC64_TPREL16_DS: | |
| 5792 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5793 | case R_PPC64_TPREL16_HIGH: |
| 5794 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5795 | case R_PPC64_TPREL16_HIGHER: |
| 5796 | case R_PPC64_TPREL16_HIGHERA: | |
| 5797 | case R_PPC64_TPREL16_HIGHEST: | |
| 5798 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 5799 | if (bfd_link_pic (info)) |
| 411e1bfb | 5800 | { |
| afb93314 | 5801 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5802 | goto dodyn; |
| 5d1634d7 AM |
5803 | } |
| 5804 | break; | |
| 5805 | ||
| e86ce104 | 5806 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5807 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5808 | && rel + 1 < rel_end |
| 4ce794b7 | 5809 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5810 | { |
| 8387904d AM |
5811 | if (h != NULL) |
| 5812 | { | |
| 5813 | if (h->root.root.string[0] == '.' | |
| 5814 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5815 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5816 | ; |
| 5817 | else | |
| 5818 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5819 | } | |
| 5820 | else | |
| 5821 | { | |
| 5822 | asection *s; | |
| 87d72d41 | 5823 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5824 | |
| 87d72d41 AM |
5825 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5826 | abfd, r_symndx); | |
| 5827 | if (isym == NULL) | |
| 8387904d | 5828 | return FALSE; |
| 87d72d41 AM |
5829 | |
| 5830 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5831 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5832 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5833 | } |
| 1e2f5b6e | 5834 | } |
| e86ce104 AM |
5835 | /* Fall through. */ |
| 5836 | ||
| 65f38f15 AM |
5837 | case R_PPC64_ADDR16: |
| 5838 | case R_PPC64_ADDR16_DS: | |
| 5839 | case R_PPC64_ADDR16_HA: | |
| 5840 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5841 | case R_PPC64_ADDR16_HIGH: |
| 5842 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5843 | case R_PPC64_ADDR16_HIGHER: |
| 5844 | case R_PPC64_ADDR16_HIGHERA: | |
| 5845 | case R_PPC64_ADDR16_HIGHEST: | |
| 5846 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5847 | case R_PPC64_ADDR16_LO: | |
| 5848 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5849 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5850 | && rel->r_addend == 0) |
| 5851 | { | |
| 5852 | /* We may need a .plt entry if this reloc refers to a | |
| 5853 | function in a shared lib. */ | |
| 5854 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5855 | return FALSE; | |
| 5856 | h->pointer_equality_needed = 1; | |
| 5857 | } | |
| 5858 | /* Fall through. */ | |
| 5859 | ||
| 5860 | case R_PPC64_REL30: | |
| 5861 | case R_PPC64_REL32: | |
| 5862 | case R_PPC64_REL64: | |
| 65f38f15 | 5863 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5864 | case R_PPC64_UADDR16: |
| 5865 | case R_PPC64_UADDR32: | |
| 5866 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5867 | case R_PPC64_TOC: |
| 0e1862bb | 5868 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5869 | /* We may need a copy reloc. */ |
| f5385ebf | 5870 | h->non_got_ref = 1; |
| 81848ca0 | 5871 | |
| 41bd81ab | 5872 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5873 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5874 | break; |
| e86ce104 | 5875 | |
| 65f38f15 AM |
5876 | /* If we are creating a shared library, and this is a reloc |
| 5877 | against a global symbol, or a non PC relative reloc | |
| 5878 | against a local symbol, then we need to copy the reloc | |
| 5879 | into the shared library. However, if we are linking with | |
| 5880 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5881 | global symbol which is defined in an object we are | |
| 5882 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5883 | this point we have not seen all the input files, so it is | |
| 5884 | possible that DEF_REGULAR is not set now but will be set | |
| 5885 | later (it is never cleared). In case of a weak definition, | |
| 5886 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5887 | a shared library. We account for that possibility below by | |
| f4656909 | 5888 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5889 | table entry. A similar situation occurs when creating |
| 5890 | shared libraries and symbol visibility changes render the | |
| 5891 | symbol local. | |
| 5892 | ||
| 5893 | If on the other hand, we are creating an executable, we | |
| 5894 | may need to keep relocations for symbols satisfied by a | |
| 5895 | dynamic library if we manage to avoid copy relocs for the | |
| 5896 | symbol. */ | |
| 411e1bfb | 5897 | dodyn: |
| 0e1862bb | 5898 | if ((bfd_link_pic (info) |
| 1d483afe | 5899 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5900 | || (h != NULL |
| 198f1157 | 5901 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5902 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5903 | || !h->def_regular)))) |
| f4656909 | 5904 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5905 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5906 | && h != NULL |
| 5907 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5908 | || !h->def_regular)) |
| 0e1862bb | 5909 | || (!bfd_link_pic (info) |
| 25f23106 | 5910 | && ifunc != NULL)) |
| 5bd4f169 | 5911 | { |
| 65f38f15 AM |
5912 | /* We must copy these reloc types into the output file. |
| 5913 | Create a reloc section in dynobj and make room for | |
| 5914 | this reloc. */ | |
| 5bd4f169 AM |
5915 | if (sreloc == NULL) |
| 5916 | { | |
| 83bac4b0 NC |
5917 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5918 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5919 | |
| 5bd4f169 | 5920 | if (sreloc == NULL) |
| 83bac4b0 | 5921 | return FALSE; |
| 5bd4f169 AM |
5922 | } |
| 5923 | ||
| 65f38f15 AM |
5924 | /* If this is a global symbol, we count the number of |
| 5925 | relocations we need for this symbol. */ | |
| 5926 | if (h != NULL) | |
| 5927 | { | |
| 19e08130 AM |
5928 | struct elf_dyn_relocs *p; |
| 5929 | struct elf_dyn_relocs **head; | |
| 5930 | ||
| ec338859 | 5931 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5932 | p = *head; |
| 5933 | if (p == NULL || p->sec != sec) | |
| 5934 | { | |
| 5935 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5936 | if (p == NULL) | |
| 5937 | return FALSE; | |
| 5938 | p->next = *head; | |
| 5939 | *head = p; | |
| 5940 | p->sec = sec; | |
| 5941 | p->count = 0; | |
| 5942 | p->pc_count = 0; | |
| 5943 | } | |
| 5944 | p->count += 1; | |
| 5945 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5946 | p->pc_count += 1; | |
| 65f38f15 AM |
5947 | } |
| 5948 | else | |
| 5949 | { | |
| ec338859 AM |
5950 | /* Track dynamic relocs needed for local syms too. |
| 5951 | We really need local syms available to do this | |
| 5952 | easily. Oh well. */ | |
| 19e08130 AM |
5953 | struct ppc_dyn_relocs *p; |
| 5954 | struct ppc_dyn_relocs **head; | |
| 5955 | bfd_boolean is_ifunc; | |
| ec338859 | 5956 | asection *s; |
| 6edfbbad | 5957 | void *vpp; |
| 87d72d41 | 5958 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5959 | |
| 87d72d41 AM |
5960 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5961 | abfd, r_symndx); | |
| 5962 | if (isym == NULL) | |
| b34976b6 | 5963 | return FALSE; |
| ec338859 | 5964 | |
| 87d72d41 AM |
5965 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5966 | if (s == NULL) | |
| 5967 | s = sec; | |
| 5968 | ||
| 6edfbbad | 5969 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5970 | head = (struct ppc_dyn_relocs **) vpp; |
| 5971 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5972 | p = *head; | |
| 5973 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5974 | p = p->next; | |
| 5975 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5976 | { | |
| 5977 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5978 | if (p == NULL) | |
| 5979 | return FALSE; | |
| 5980 | p->next = *head; | |
| 5981 | *head = p; | |
| 5982 | p->sec = sec; | |
| 5983 | p->ifunc = is_ifunc; | |
| 5984 | p->count = 0; | |
| 5985 | } | |
| 5986 | p->count += 1; | |
| ec338859 | 5987 | } |
| 65f38f15 | 5988 | } |
| 5bd4f169 | 5989 | break; |
| 65f38f15 AM |
5990 | |
| 5991 | default: | |
| 96e0dda4 | 5992 | break; |
| 5bd4f169 AM |
5993 | } |
| 5994 | } | |
| 5995 | ||
| b34976b6 | 5996 | return TRUE; |
| 5bd4f169 AM |
5997 | } |
| 5998 | ||
| ee67d69a AM |
5999 | /* Merge backend specific data from an object file to the output |
| 6000 | object file when linking. */ | |
| 6001 | ||
| 6002 | static bfd_boolean | |
| 50e03d47 | 6003 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6004 | { |
| 50e03d47 | 6005 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6006 | unsigned long iflags, oflags; |
| 6007 | ||
| 6008 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6009 | return TRUE; | |
| 6010 | ||
| 6011 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6012 | return TRUE; | |
| 6013 | ||
| 50e03d47 | 6014 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6015 | return FALSE; |
| 6016 | ||
| 6017 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6018 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6019 | ||
| f6c7c3e8 | 6020 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6021 | { |
| 4eca0228 | 6022 | _bfd_error_handler |
| 695344c0 | 6023 | /* xgettext:c-format */ |
| ee67d69a AM |
6024 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); |
| 6025 | bfd_set_error (bfd_error_bad_value); | |
| 6026 | return FALSE; | |
| 6027 | } | |
| f6c7c3e8 | 6028 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6029 | { |
| 4eca0228 | 6030 | _bfd_error_handler |
| 695344c0 | 6031 | /* xgettext:c-format */ |
| ee67d69a AM |
6032 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), |
| 6033 | ibfd, iflags, oflags); | |
| 6034 | bfd_set_error (bfd_error_bad_value); | |
| 6035 | return FALSE; | |
| 6036 | } | |
| 6037 | ||
| 50e03d47 | 6038 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6039 | |
| ee67d69a | 6040 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6041 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6042 | |
| 6043 | return TRUE; | |
| 6044 | } | |
| 6045 | ||
| 6046 | static bfd_boolean | |
| 6047 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6048 | { | |
| 6049 | /* Print normal ELF private data. */ | |
| 6050 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6051 | ||
| 6052 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6053 | { | |
| 6054 | FILE *file = ptr; | |
| 6055 | ||
| ee67d69a AM |
6056 | fprintf (file, _("private flags = 0x%lx:"), |
| 6057 | elf_elfheader (abfd)->e_flags); | |
| 6058 | ||
| 6059 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6060 | fprintf (file, _(" [abiv%ld]"), | |
| 6061 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6062 | fputc ('\n', file); | |
| 6063 | } | |
| 6064 | ||
| 6065 | return TRUE; | |
| 6066 | } | |
| 6067 | ||
| 8387904d | 6068 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6069 | of the code entry point, and its section, which must be in the same |
| 6070 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6071 | |
| 6072 | static bfd_vma | |
| 6073 | opd_entry_value (asection *opd_sec, | |
| 6074 | bfd_vma offset, | |
| 6075 | asection **code_sec, | |
| aef36ac1 AM |
6076 | bfd_vma *code_off, |
| 6077 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6078 | { |
| 6079 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6080 | Elf_Internal_Rela *relocs; |
| 8387904d | 6081 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6082 | bfd_vma val; |
| 8387904d | 6083 | |
| 9f296da3 AM |
6084 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6085 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6086 | if (opd_sec->reloc_count == 0) |
| 6087 | { | |
| 729eabd5 | 6088 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6089 | |
| 729eabd5 AM |
6090 | if (contents == NULL) |
| 6091 | { | |
| 6092 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6093 | return (bfd_vma) -1; | |
| 6094 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6095 | } | |
| ee1e4ede | 6096 | |
| dbb3fbbb | 6097 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6098 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6099 | return (bfd_vma) -1; |
| 6100 | ||
| 729eabd5 | 6101 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6102 | if (code_sec != NULL) |
| 6103 | { | |
| 6104 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6105 | |
| aef36ac1 | 6106 | if (in_code_sec) |
| 4b85d634 | 6107 | { |
| aef36ac1 AM |
6108 | sec = *code_sec; |
| 6109 | if (sec->vma <= val | |
| 6110 | && val < sec->vma + sec->size) | |
| 6111 | likely = sec; | |
| 6112 | else | |
| 6113 | val = -1; | |
| 6114 | } | |
| 6115 | else | |
| 6116 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6117 | if (sec->vma <= val | |
| 6118 | && (sec->flags & SEC_LOAD) != 0 | |
| 6119 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6120 | likely = sec; | |
| 6121 | if (likely != NULL) | |
| 6122 | { | |
| 6123 | *code_sec = likely; | |
| 6124 | if (code_off != NULL) | |
| 6125 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6126 | } |
| 6127 | } | |
| aef36ac1 | 6128 | return val; |
| 4b85d634 AM |
6129 | } |
| 6130 | ||
| 0c8d6e5c | 6131 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6132 | |
| 729eabd5 | 6133 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6134 | if (relocs == NULL) |
| 6135 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6136 | /* PR 17512: file: df8e1fd6. */ |
| 6137 | if (relocs == NULL) | |
| 6138 | return (bfd_vma) -1; | |
| 645ea6a9 | 6139 | |
| 8387904d | 6140 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6141 | lo = relocs; |
| 8387904d | 6142 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6143 | val = (bfd_vma) -1; |
| 8387904d AM |
6144 | while (lo < hi) |
| 6145 | { | |
| 6146 | look = lo + (hi - lo) / 2; | |
| 6147 | if (look->r_offset < offset) | |
| 6148 | lo = look + 1; | |
| 6149 | else if (look->r_offset > offset) | |
| 6150 | hi = look; | |
| 6151 | else | |
| 6152 | { | |
| 0ffa91dd NC |
6153 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6154 | ||
| 8387904d AM |
6155 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6156 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6157 | { | |
| 6158 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6159 | asection *sec = NULL; |
| 8387904d | 6160 | |
| b53dfeb2 AM |
6161 | if (symndx >= symtab_hdr->sh_info |
| 6162 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6163 | { |
| 6164 | struct elf_link_hash_entry **sym_hashes; | |
| 6165 | struct elf_link_hash_entry *rh; | |
| 6166 | ||
| 6167 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6168 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6169 | if (rh != NULL) |
| 6170 | { | |
| 6171 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6172 | if (rh->root.type != bfd_link_hash_defined |
| 6173 | && rh->root.type != bfd_link_hash_defweak) | |
| 6174 | break; | |
| 6175 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6176 | { |
| bb854a36 AM |
6177 | val = rh->root.u.def.value; |
| 6178 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6179 | } |
| 6180 | } | |
| 6181 | } | |
| 6182 | ||
| 6183 | if (sec == NULL) | |
| 6184 | { | |
| 6185 | Elf_Internal_Sym *sym; | |
| 6186 | ||
| 6187 | if (symndx < symtab_hdr->sh_info) | |
| 6188 | { | |
| 6189 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6190 | if (sym == NULL) | |
| 6191 | { | |
| 6192 | size_t symcnt = symtab_hdr->sh_info; | |
| 6193 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6194 | symcnt, 0, | |
| 6195 | NULL, NULL, NULL); | |
| 6196 | if (sym == NULL) | |
| 6197 | break; | |
| 6198 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6199 | } | |
| 6200 | sym += symndx; | |
| 128205bb AM |
6201 | } |
| 6202 | else | |
| 6203 | { | |
| b53dfeb2 AM |
6204 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6205 | 1, symndx, | |
| 6206 | NULL, NULL, NULL); | |
| 128205bb AM |
6207 | if (sym == NULL) |
| 6208 | break; | |
| 128205bb | 6209 | } |
| b53dfeb2 AM |
6210 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6211 | if (sec == NULL) | |
| 6212 | break; | |
| 6213 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6214 | val = sym->st_value; | |
| 8387904d | 6215 | } |
| b53dfeb2 | 6216 | |
| 8387904d AM |
6217 | val += look->r_addend; |
| 6218 | if (code_off != NULL) | |
| 6219 | *code_off = val; | |
| 6220 | if (code_sec != NULL) | |
| aef36ac1 AM |
6221 | { |
| 6222 | if (in_code_sec && *code_sec != sec) | |
| 6223 | return -1; | |
| 6224 | else | |
| 6225 | *code_sec = sec; | |
| 6226 | } | |
| b53dfeb2 | 6227 | if (sec->output_section != NULL) |
| 8387904d | 6228 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6229 | } |
| 6230 | break; | |
| 6231 | } | |
| 6232 | } | |
| 645ea6a9 | 6233 | |
| 645ea6a9 | 6234 | return val; |
| 8387904d AM |
6235 | } |
| 6236 | ||
| aef36ac1 AM |
6237 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6238 | function size and set *CODE_OFF to the function's entry point, | |
| 6239 | otherwise return zero. */ | |
| 9f296da3 | 6240 | |
| aef36ac1 AM |
6241 | static bfd_size_type |
| 6242 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6243 | bfd_vma *code_off) | |
| 9f296da3 | 6244 | { |
| aef36ac1 AM |
6245 | bfd_size_type size; |
| 6246 | ||
| 6247 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6248 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6249 | return 0; | |
| 6250 | ||
| 6251 | size = 0; | |
| 6252 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6253 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6254 | ||
| 6255 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6256 | { |
| b07bca4e AM |
6257 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6258 | bfd_vma symval = sym->value; | |
| 6259 | ||
| 6260 | if (opd != NULL | |
| 6261 | && opd->adjust != NULL | |
| 6262 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6263 | { | |
| 6264 | /* opd_entry_value will use cached relocs that have been | |
| 6265 | adjusted, but with raw symbols. That means both local | |
| 6266 | and global symbols need adjusting. */ | |
| 6267 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6268 | if (adjust == -1) | |
| 6269 | return 0; | |
| 6270 | symval += adjust; | |
| 6271 | } | |
| 6272 | ||
| 6273 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6274 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6275 | return 0; | |
| 6276 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6277 | symbol. This size has nothing to do with the code size of the | |
| 6278 | function, which is what we're supposed to return, but the | |
| 6279 | code size isn't available without looking up the dot-sym. | |
| 6280 | However, doing that would be a waste of time particularly | |
| 6281 | since elf_find_function will look at the dot-sym anyway. | |
| 6282 | Now, elf_find_function will keep the largest size of any | |
| 6283 | function sym found at the code address of interest, so return | |
| 6284 | 1 here to avoid it incorrectly caching a larger function size | |
| 6285 | for a small function. This does mean we return the wrong | |
| 6286 | size for a new-ABI function of size 24, but all that does is | |
| 6287 | disable caching for such functions. */ | |
| 6288 | if (size == 24) | |
| 6289 | size = 1; | |
| 9f296da3 | 6290 | } |
| aef36ac1 AM |
6291 | else |
| 6292 | { | |
| 6293 | if (sym->section != sec) | |
| 6294 | return 0; | |
| 6295 | *code_off = sym->value; | |
| 6296 | } | |
| 6297 | if (size == 0) | |
| 6298 | size = 1; | |
| 6299 | return size; | |
| 9f296da3 AM |
6300 | } |
| 6301 | ||
| 854b41e7 AM |
6302 | /* Return true if symbol is defined in a regular object file. */ |
| 6303 | ||
| 6304 | static bfd_boolean | |
| 6305 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6306 | { | |
| 6307 | return ((h->root.type == bfd_link_hash_defined | |
| 6308 | || h->root.type == bfd_link_hash_defweak) | |
| 6309 | && h->root.u.def.section != NULL | |
| 6310 | && h->root.u.def.section->output_section != NULL); | |
| 6311 | } | |
| 6312 | ||
| b31867b6 AM |
6313 | /* If FDH is a function descriptor symbol, return the associated code |
| 6314 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6315 | ||
| 6316 | static struct ppc_link_hash_entry * | |
| 6317 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6318 | { | |
| 6319 | if (fdh->is_func_descriptor) | |
| 6320 | { | |
| 6321 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6322 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6323 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6324 | return fh; | |
| 6325 | } | |
| 6326 | return NULL; | |
| 6327 | } | |
| 6328 | ||
| 6329 | /* If FH is a function code entry symbol, return the associated | |
| 6330 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6331 | ||
| 6332 | static struct ppc_link_hash_entry * | |
| 6333 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6334 | { | |
| 6335 | if (fh->oh != NULL | |
| 6336 | && fh->oh->is_func_descriptor) | |
| 6337 | { | |
| 6338 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6339 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6340 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6341 | return fdh; | |
| 6342 | } | |
| 6343 | return NULL; | |
| 6344 | } | |
| 6345 | ||
| 74f0fb50 AM |
6346 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6347 | ||
| 6348 | static void | |
| 6349 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6350 | { | |
| 6351 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6352 | struct bfd_sym_chain *sym; | |
| 6353 | ||
| 4dfe6ac6 NC |
6354 | if (htab == NULL) |
| 6355 | return; | |
| 6356 | ||
| 74f0fb50 AM |
6357 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6358 | { | |
| b31867b6 | 6359 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6360 | asection *sec; |
| 6361 | ||
| 6362 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6363 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6364 | if (eh == NULL) |
| 6365 | continue; | |
| 6366 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6367 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6368 | continue; | |
| 6369 | ||
| b31867b6 AM |
6370 | fh = defined_code_entry (eh); |
| 6371 | if (fh != NULL) | |
| 74f0fb50 | 6372 | { |
| b31867b6 | 6373 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6374 | sec->flags |= SEC_KEEP; |
| 6375 | } | |
| 6376 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6377 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6378 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6379 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6380 | sec->flags |= SEC_KEEP; |
| 6381 | ||
| 6382 | sec = eh->elf.root.u.def.section; | |
| 6383 | sec->flags |= SEC_KEEP; | |
| 6384 | } | |
| 6385 | } | |
| 6386 | ||
| 64d03ab5 AM |
6387 | /* Mark sections containing dynamically referenced symbols. When |
| 6388 | building shared libraries, we must assume that any visible symbol is | |
| 6389 | referenced. */ | |
| 6390 | ||
| 6391 | static bfd_boolean | |
| 6392 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6393 | { | |
| 6394 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6395 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6396 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6397 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6398 | |
| 64d03ab5 | 6399 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6400 | fdh = defined_func_desc (eh); |
| 6401 | if (fdh != NULL) | |
| 6402 | eh = fdh; | |
| 64d03ab5 AM |
6403 | |
| 6404 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6405 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6406 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6407 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6408 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6409 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6410 | && (!bfd_link_executable (info) |
| b407645f AM |
6411 | || info->export_dynamic |
| 6412 | || (eh->elf.dynamic | |
| 6413 | && d != NULL | |
| 6414 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6415 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6416 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6417 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6418 | { |
| 6419 | asection *code_sec; | |
| b31867b6 | 6420 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6421 | |
| 6422 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6423 | ||
| 6424 | /* Function descriptor syms cause the associated | |
| 6425 | function code sym section to be marked. */ | |
| b31867b6 AM |
6426 | fh = defined_code_entry (eh); |
| 6427 | if (fh != NULL) | |
| 6428 | { | |
| 6429 | code_sec = fh->elf.root.u.def.section; | |
| 6430 | code_sec->flags |= SEC_KEEP; | |
| 6431 | } | |
| 64d03ab5 AM |
6432 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6433 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6434 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6435 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6436 | code_sec->flags |= SEC_KEEP; |
| 6437 | } | |
| 6438 | ||
| 6439 | return TRUE; | |
| 6440 | } | |
| 6441 | ||
| 5bd4f169 AM |
6442 | /* Return the section that should be marked against GC for a given |
| 6443 | relocation. */ | |
| 6444 | ||
| 6445 | static asection * | |
| 4ce794b7 | 6446 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6447 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6448 | Elf_Internal_Rela *rel, |
| 6449 | struct elf_link_hash_entry *h, | |
| 6450 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6451 | { |
| ccfa59ea AM |
6452 | asection *rsec; |
| 6453 | ||
| ccfa59ea AM |
6454 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6455 | function sections, as all functions are referenced in .opd. */ | |
| 6456 | rsec = NULL; | |
| 6457 | if (get_opd_info (sec) != NULL) | |
| 6458 | return rsec; | |
| 1e2f5b6e | 6459 | |
| 5bd4f169 AM |
6460 | if (h != NULL) |
| 6461 | { | |
| 04c9666a | 6462 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6463 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6464 | |
| 4ce794b7 | 6465 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6466 | switch (r_type) |
| 5bd4f169 AM |
6467 | { |
| 6468 | case R_PPC64_GNU_VTINHERIT: | |
| 6469 | case R_PPC64_GNU_VTENTRY: | |
| 6470 | break; | |
| 6471 | ||
| 6472 | default: | |
| 6473 | switch (h->root.type) | |
| 6474 | { | |
| 6475 | case bfd_link_hash_defined: | |
| 6476 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6477 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6478 | fdh = defined_func_desc (eh); |
| 6479 | if (fdh != NULL) | |
| 6480 | eh = fdh; | |
| 1e2f5b6e AM |
6481 | |
| 6482 | /* Function descriptor syms cause the associated | |
| 6483 | function code sym section to be marked. */ | |
| b31867b6 AM |
6484 | fh = defined_code_entry (eh); |
| 6485 | if (fh != NULL) | |
| ccfa59ea AM |
6486 | { |
| 6487 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6488 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6489 | |
| b31867b6 | 6490 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6491 | } |
| 8387904d AM |
6492 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6493 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6494 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6495 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6496 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6497 | else |
| 1e2f5b6e AM |
6498 | rsec = h->root.u.def.section; |
| 6499 | break; | |
| 5bd4f169 AM |
6500 | |
| 6501 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6502 | rsec = h->root.u.c.p->section; |
| 6503 | break; | |
| 5bd4f169 AM |
6504 | |
| 6505 | default: | |
| fb34365b | 6506 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6507 | } |
| 6508 | } | |
| 6509 | } | |
| 6510 | else | |
| 6511 | { | |
| 74f0fb50 | 6512 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6513 | |
| 6514 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6515 | opd = get_opd_info (rsec); |
| 6516 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6517 | { |
| 74f0fb50 | 6518 | rsec->gc_mark = 1; |
| ccfa59ea | 6519 | |
| 51aecdc5 | 6520 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6521 | } |
| 5bd4f169 AM |
6522 | } |
| 6523 | ||
| 1e2f5b6e | 6524 | return rsec; |
| 5bd4f169 AM |
6525 | } |
| 6526 | ||
| 65f38f15 AM |
6527 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6528 | section being removed. */ | |
| 5bd4f169 | 6529 | |
| b34976b6 | 6530 | static bfd_boolean |
| 4ce794b7 AM |
6531 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6532 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6533 | { |
| 411e1bfb | 6534 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6535 | Elf_Internal_Shdr *symtab_hdr; |
| 6536 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6537 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6538 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6539 | |
| 0e1862bb | 6540 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6541 | return TRUE; |
| 6542 | ||
| 680a3378 AM |
6543 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6544 | return TRUE; | |
| 6545 | ||
| ec338859 AM |
6546 | elf_section_data (sec)->local_dynrel = NULL; |
| 6547 | ||
| 411e1bfb | 6548 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6549 | if (htab == NULL) |
| 6550 | return FALSE; | |
| 6551 | ||
| 0ffa91dd | 6552 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6553 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6554 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6555 | |
| 6556 | relend = relocs + sec->reloc_count; | |
| 6557 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6558 | { |
| 6559 | unsigned long r_symndx; | |
| 04c9666a | 6560 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6561 | struct elf_link_hash_entry *h = NULL; |
| cbf95972 | 6562 | struct plt_entry **plt_list; |
| f961d9dd | 6563 | unsigned char tls_type = 0; |
| 5bd4f169 | 6564 | |
| a33d1f77 | 6565 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6566 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6567 | if (r_symndx >= symtab_hdr->sh_info) |
| 6568 | { | |
| 6569 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6570 | struct elf_dyn_relocs **pp; |
| 6571 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6572 | |
| 6573 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6574 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6575 | eh = (struct ppc_link_hash_entry *) h; |
| 6576 | ||
| 6577 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6578 | if (p->sec == sec) | |
| 6579 | { | |
| 6580 | /* Everything must go for SEC. */ | |
| 6581 | *pp = p->next; | |
| 6582 | break; | |
| 6583 | } | |
| 6584 | } | |
| 6585 | ||
| a33d1f77 AM |
6586 | switch (r_type) |
| 6587 | { | |
| 411e1bfb AM |
6588 | case R_PPC64_GOT_TLSLD16: |
| 6589 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6590 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6591 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6592 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6593 | goto dogot; |
| 6594 | ||
| 6595 | case R_PPC64_GOT_TLSGD16: | |
| 6596 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6597 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6598 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6599 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6600 | goto dogot; |
| 6601 | ||
| 6602 | case R_PPC64_GOT_TPREL16_DS: | |
| 6603 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6604 | case R_PPC64_GOT_TPREL16_HI: | |
| 6605 | case R_PPC64_GOT_TPREL16_HA: | |
| 6606 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6607 | goto dogot; | |
| 6608 | ||
| 6609 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6610 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6611 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6612 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6613 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6614 | goto dogot; | |
| 6615 | ||
| a33d1f77 AM |
6616 | case R_PPC64_GOT16: |
| 6617 | case R_PPC64_GOT16_DS: | |
| 6618 | case R_PPC64_GOT16_HA: | |
| 6619 | case R_PPC64_GOT16_HI: | |
| 6620 | case R_PPC64_GOT16_LO: | |
| 6621 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6622 | dogot: |
| 6623 | { | |
| 6624 | struct got_entry *ent; | |
| 6625 | ||
| 58ac9f71 AM |
6626 | if (h != NULL) |
| 6627 | ent = h->got.glist; | |
| 411e1bfb AM |
6628 | else |
| 6629 | ent = local_got_ents[r_symndx]; | |
| 6630 | ||
| 6631 | for (; ent != NULL; ent = ent->next) | |
| 6632 | if (ent->addend == rel->r_addend | |
| e717da7e | 6633 | && ent->owner == abfd |
| 411e1bfb AM |
6634 | && ent->tls_type == tls_type) |
| 6635 | break; | |
| 6636 | if (ent == NULL) | |
| 6637 | abort (); | |
| 6638 | if (ent->got.refcount > 0) | |
| 6639 | ent->got.refcount -= 1; | |
| 6640 | } | |
| a33d1f77 | 6641 | break; |
| 65f38f15 | 6642 | |
| a33d1f77 AM |
6643 | case R_PPC64_PLT16_HA: |
| 6644 | case R_PPC64_PLT16_HI: | |
| 6645 | case R_PPC64_PLT16_LO: | |
| 6646 | case R_PPC64_PLT32: | |
| 6647 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6648 | case R_PPC64_REL14: |
| 6649 | case R_PPC64_REL14_BRNTAKEN: | |
| 6650 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6651 | case R_PPC64_REL24: |
| cbf95972 | 6652 | plt_list = NULL; |
| 58ac9f71 | 6653 | if (h != NULL) |
| cbf95972 AM |
6654 | plt_list = &h->plt.plist; |
| 6655 | else if (local_got_ents != NULL) | |
| 6656 | { | |
| 6657 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6658 | (local_got_ents + symtab_hdr->sh_info); | |
| 6659 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 6660 | (local_plt + symtab_hdr->sh_info); | |
| 6661 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6662 | plt_list = local_plt + r_symndx; | |
| 6663 | } | |
| 6664 | if (plt_list) | |
| 5d1634d7 | 6665 | { |
| 411e1bfb AM |
6666 | struct plt_entry *ent; |
| 6667 | ||
| cbf95972 | 6668 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6669 | if (ent->addend == rel->r_addend) |
| 6670 | break; | |
| 7c6c1722 | 6671 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6672 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6673 | } |
| e86ce104 | 6674 | break; |
| 5d1634d7 | 6675 | |
| a33d1f77 AM |
6676 | default: |
| 6677 | break; | |
| 6678 | } | |
| 6679 | } | |
| b34976b6 | 6680 | return TRUE; |
| 5bd4f169 AM |
6681 | } |
| 6682 | ||
| deb0e272 AM |
6683 | /* The maximum size of .sfpr. */ |
| 6684 | #define SFPR_MAX (218*4) | |
| 6685 | ||
| 6686 | struct sfpr_def_parms | |
| 6687 | { | |
| 699733f6 AM |
6688 | const char name[12]; |
| 6689 | unsigned char lo, hi; | |
| deb0e272 AM |
6690 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6691 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6692 | }; | |
| 6693 | ||
| a4b6fadd AM |
6694 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6695 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6696 | instead. */ | |
| deb0e272 | 6697 | |
| 4dfe6ac6 | 6698 | static bfd_boolean |
| a4b6fadd AM |
6699 | sfpr_define (struct bfd_link_info *info, |
| 6700 | const struct sfpr_def_parms *parm, | |
| 6701 | asection *stub_sec) | |
| deb0e272 AM |
6702 | { |
| 6703 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6704 | unsigned int i; | |
| 6705 | size_t len = strlen (parm->name); | |
| 6706 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6707 | char sym[16]; |
| deb0e272 | 6708 | |
| 4dfe6ac6 NC |
6709 | if (htab == NULL) |
| 6710 | return FALSE; | |
| 6711 | ||
| deb0e272 AM |
6712 | memcpy (sym, parm->name, len); |
| 6713 | sym[len + 2] = 0; | |
| 6714 | ||
| 6715 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6716 | { | |
| a4b6fadd | 6717 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6718 | |
| 6719 | sym[len + 0] = i / 10 + '0'; | |
| 6720 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6721 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6722 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6723 | if (stub_sec != NULL) |
| deb0e272 | 6724 | { |
| a4b6fadd AM |
6725 | if (h != NULL |
| 6726 | && h->elf.root.type == bfd_link_hash_defined | |
| 6727 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6728 | { | |
| 6729 | struct elf_link_hash_entry *s; | |
| 6730 | char buf[32]; | |
| 6731 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6732 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6733 | if (s == NULL) | |
| 6734 | return FALSE; | |
| 6735 | if (s->root.type == bfd_link_hash_new | |
| 6736 | || (s->root.type = bfd_link_hash_defined | |
| 6737 | && s->root.u.def.section == stub_sec)) | |
| 6738 | { | |
| 6739 | s->root.type = bfd_link_hash_defined; | |
| 6740 | s->root.u.def.section = stub_sec; | |
| 6741 | s->root.u.def.value = (stub_sec->size | |
| 6742 | + h->elf.root.u.def.value); | |
| 6743 | s->ref_regular = 1; | |
| 6744 | s->def_regular = 1; | |
| 6745 | s->ref_regular_nonweak = 1; | |
| 6746 | s->forced_local = 1; | |
| 6747 | s->non_elf = 0; | |
| 6748 | s->root.linker_def = 1; | |
| 6749 | } | |
| 6750 | } | |
| 6751 | continue; | |
| 6752 | } | |
| 6753 | if (h != NULL) | |
| 6754 | { | |
| 6755 | h->save_res = 1; | |
| 6756 | if (!h->elf.def_regular) | |
| deb0e272 | 6757 | { |
| a4b6fadd AM |
6758 | h->elf.root.type = bfd_link_hash_defined; |
| 6759 | h->elf.root.u.def.section = htab->sfpr; | |
| 6760 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6761 | h->elf.type = STT_FUNC; | |
| 6762 | h->elf.def_regular = 1; | |
| b32547cd | 6763 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6764 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6765 | writing = TRUE; | |
| deb0e272 | 6766 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6767 | { |
| 6768 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6769 | if (htab->sfpr->contents == NULL) | |
| 6770 | return FALSE; | |
| 6771 | } | |
| deb0e272 AM |
6772 | } |
| 6773 | } | |
| 6774 | if (writing) | |
| 6775 | { | |
| 6776 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6777 | if (i != parm->hi) | |
| 6778 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6779 | else | |
| 6780 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6781 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6782 | } | |
| 6783 | } | |
| 6784 | ||
| 6785 | return TRUE; | |
| 6786 | } | |
| 6787 | ||
| 6788 | static bfd_byte * | |
| 6789 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6790 | { | |
| 6791 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6792 | return p + 4; | |
| 6793 | } | |
| 6794 | ||
| 6795 | static bfd_byte * | |
| 6796 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6797 | { | |
| 6798 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6799 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6800 | p = p + 4; |
| 6801 | bfd_put_32 (abfd, BLR, p); | |
| 6802 | return p + 4; | |
| 6803 | } | |
| 6804 | ||
| 6805 | static bfd_byte * | |
| 6806 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6807 | { | |
| 6808 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6809 | return p + 4; | |
| 6810 | } | |
| 6811 | ||
| 6812 | static bfd_byte * | |
| 6813 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6814 | { | |
| a078d95a | 6815 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6816 | p = p + 4; |
| 6817 | p = restgpr0 (abfd, p, r); | |
| 6818 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6819 | p = p + 4; | |
| 6820 | if (r == 29) | |
| 6821 | { | |
| 6822 | p = restgpr0 (abfd, p, 30); | |
| 6823 | p = restgpr0 (abfd, p, 31); | |
| 6824 | } | |
| 6825 | bfd_put_32 (abfd, BLR, p); | |
| 6826 | return p + 4; | |
| 6827 | } | |
| 6828 | ||
| 6829 | static bfd_byte * | |
| 6830 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6831 | { | |
| 6832 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6833 | return p + 4; | |
| 6834 | } | |
| 6835 | ||
| 6836 | static bfd_byte * | |
| 6837 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6838 | { | |
| 6839 | p = savegpr1 (abfd, p, r); | |
| 6840 | bfd_put_32 (abfd, BLR, p); | |
| 6841 | return p + 4; | |
| 6842 | } | |
| 6843 | ||
| 6844 | static bfd_byte * | |
| 6845 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6846 | { | |
| 6847 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6848 | return p + 4; | |
| 6849 | } | |
| 6850 | ||
| 6851 | static bfd_byte * | |
| 6852 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6853 | { | |
| 6854 | p = restgpr1 (abfd, p, r); | |
| 6855 | bfd_put_32 (abfd, BLR, p); | |
| 6856 | return p + 4; | |
| 6857 | } | |
| 6858 | ||
| 6859 | static bfd_byte * | |
| 6860 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6861 | { | |
| 6862 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6863 | return p + 4; | |
| 6864 | } | |
| 6865 | ||
| 6866 | static bfd_byte * | |
| 6867 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6868 | { | |
| 6869 | p = savefpr (abfd, p, r); | |
| a078d95a | 6870 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6871 | p = p + 4; |
| 6872 | bfd_put_32 (abfd, BLR, p); | |
| 6873 | return p + 4; | |
| 6874 | } | |
| 6875 | ||
| 6876 | static bfd_byte * | |
| 6877 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6878 | { | |
| 6879 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6880 | return p + 4; | |
| 6881 | } | |
| 6882 | ||
| 6883 | static bfd_byte * | |
| 6884 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6885 | { | |
| a078d95a | 6886 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6887 | p = p + 4; |
| 6888 | p = restfpr (abfd, p, r); | |
| 6889 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6890 | p = p + 4; | |
| 6891 | if (r == 29) | |
| 6892 | { | |
| 6893 | p = restfpr (abfd, p, 30); | |
| 6894 | p = restfpr (abfd, p, 31); | |
| 6895 | } | |
| 6896 | bfd_put_32 (abfd, BLR, p); | |
| 6897 | return p + 4; | |
| 6898 | } | |
| 6899 | ||
| 6900 | static bfd_byte * | |
| 6901 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6902 | { | |
| 6903 | p = savefpr (abfd, p, r); | |
| 6904 | bfd_put_32 (abfd, BLR, p); | |
| 6905 | return p + 4; | |
| 6906 | } | |
| 6907 | ||
| 6908 | static bfd_byte * | |
| 6909 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6910 | { | |
| 6911 | p = restfpr (abfd, p, r); | |
| 6912 | bfd_put_32 (abfd, BLR, p); | |
| 6913 | return p + 4; | |
| 6914 | } | |
| 6915 | ||
| 6916 | static bfd_byte * | |
| 6917 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6918 | { | |
| 6919 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6920 | p = p + 4; | |
| 6921 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6922 | return p + 4; | |
| 6923 | } | |
| 6924 | ||
| 6925 | static bfd_byte * | |
| 6926 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6927 | { | |
| 6928 | p = savevr (abfd, p, r); | |
| 6929 | bfd_put_32 (abfd, BLR, p); | |
| 6930 | return p + 4; | |
| 6931 | } | |
| 6932 | ||
| 6933 | static bfd_byte * | |
| 6934 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6935 | { | |
| 6936 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6937 | p = p + 4; | |
| 6938 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6939 | return p + 4; | |
| 6940 | } | |
| 6941 | ||
| 6942 | static bfd_byte * | |
| 6943 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6944 | { | |
| 6945 | p = restvr (abfd, p, r); | |
| 6946 | bfd_put_32 (abfd, BLR, p); | |
| 6947 | return p + 4; | |
| 6948 | } | |
| 6949 | ||
| e86ce104 AM |
6950 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6951 | information on function code symbol entries to their corresponding | |
| 6952 | function descriptor symbol entries. */ | |
| deb0e272 | 6953 | |
| b34976b6 | 6954 | static bfd_boolean |
| 4ce794b7 | 6955 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6956 | { |
| e86ce104 | 6957 | struct bfd_link_info *info; |
| 65f38f15 | 6958 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6959 | struct plt_entry *ent; |
| 50bc7936 AM |
6960 | struct ppc_link_hash_entry *fh; |
| 6961 | struct ppc_link_hash_entry *fdh; | |
| 6962 | bfd_boolean force_local; | |
| 5bd4f169 | 6963 | |
| 50bc7936 AM |
6964 | fh = (struct ppc_link_hash_entry *) h; |
| 6965 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6966 | return TRUE; |
| e86ce104 | 6967 | |
| 4ce794b7 | 6968 | info = inf; |
| 65f38f15 | 6969 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6970 | if (htab == NULL) |
| 6971 | return FALSE; | |
| 5bd4f169 | 6972 | |
| c09bdfe5 AM |
6973 | /* Resolve undefined references to dot-symbols as the value |
| 6974 | in the function descriptor, if we have one in a regular object. | |
| 6975 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6976 | in dynamic objects are handled elsewhere. */ | |
| 6977 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6978 | && fh->was_undefined | |
| b31867b6 AM |
6979 | && (fdh = defined_func_desc (fh)) != NULL |
| 6980 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6981 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6982 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6983 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6984 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6985 | { |
| b31867b6 | 6986 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6987 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6988 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6989 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6990 | } |
| 6991 | ||
| e86ce104 AM |
6992 | /* If this is a function code symbol, transfer dynamic linking |
| 6993 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6994 | if (!fh->is_func) |
| b34976b6 | 6995 | return TRUE; |
| e86ce104 | 6996 | |
| 50bc7936 | 6997 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6998 | if (ent->plt.refcount > 0) |
| 6999 | break; | |
| 50bc7936 AM |
7000 | if (ent == NULL |
| 7001 | || fh->elf.root.root.string[0] != '.' | |
| 7002 | || fh->elf.root.root.string[1] == '\0') | |
| 7003 | return TRUE; | |
| 5bd4f169 | 7004 | |
| 50bc7936 AM |
7005 | /* Find the corresponding function descriptor symbol. Create it |
| 7006 | as undefined if necessary. */ | |
| 5bd4f169 | 7007 | |
| b31867b6 | 7008 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 7009 | if (fdh == NULL |
| 0e1862bb | 7010 | && !bfd_link_executable (info) |
| 50bc7936 AM |
7011 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 7012 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 7013 | { | |
| 908b32fc | 7014 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
7015 | if (fdh == NULL) |
| 7016 | return FALSE; | |
| 50bc7936 | 7017 | } |
| 648cca2c | 7018 | |
| 908b32fc | 7019 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
7020 | code symbol is strong undefined, make the fake sym the same. |
| 7021 | If the function code symbol is defined, then force the fake | |
| 7022 | descriptor local; We can't support overriding of symbols in a | |
| 7023 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
7024 | |
| 7025 | if (fdh != NULL | |
| 7026 | && fdh->fake | |
| 433817dd | 7027 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 7028 | { |
| 433817dd AM |
7029 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 7030 | { | |
| 7031 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 7032 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 7033 | } | |
| 7034 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 7035 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 7036 | { | |
| 7037 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 7038 | } | |
| 908b32fc AM |
7039 | } |
| 7040 | ||
| 50bc7936 | 7041 | if (fdh != NULL |
| f5385ebf | 7042 | && !fdh->elf.forced_local |
| 0e1862bb | 7043 | && (!bfd_link_executable (info) |
| f5385ebf AM |
7044 | || fdh->elf.def_dynamic |
| 7045 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
7046 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 7047 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 7048 | { | |
| 7049 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 7050 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 7051 | return FALSE; |
| f5385ebf AM |
7052 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 7053 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 7054 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 7055 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 7056 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 7057 | { |
| 40d16e0b | 7058 | move_plt_plist (fh, fdh); |
| f5385ebf | 7059 | fdh->elf.needs_plt = 1; |
| e86ce104 | 7060 | } |
| 50bc7936 | 7061 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
7062 | fdh->oh = fh; |
| 7063 | fh->oh = fdh; | |
| e86ce104 AM |
7064 | } |
| 7065 | ||
| 50bc7936 AM |
7066 | /* Now that the info is on the function descriptor, clear the |
| 7067 | function code sym info. Any function code syms for which we | |
| 7068 | don't have a definition in a regular file, we force local. | |
| 7069 | This prevents a shared library from exporting syms that have | |
| 7070 | been imported from another library. Function code syms that | |
| 7071 | are really in the library we must leave global to prevent the | |
| 7072 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7073 | force_local = (!fh->elf.def_regular |
| 7074 | || fdh == NULL | |
| 7075 | || !fdh->elf.def_regular | |
| 7076 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7077 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7078 | ||
| b34976b6 | 7079 | return TRUE; |
| e86ce104 | 7080 | } |
| 40b8271b | 7081 | |
| a4b6fadd AM |
7082 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7083 | { | |
| 7084 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7085 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7086 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7087 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7088 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7089 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7090 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7091 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7092 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7093 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7094 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7095 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7096 | }; | |
| 7097 | ||
| e86ce104 | 7098 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7099 | this hook to a) provide some gcc support functions, and b) transfer |
| 7100 | dynamic linking information gathered so far on function code symbol | |
| 7101 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7102 | |
| b34976b6 | 7103 | static bfd_boolean |
| 4ce794b7 AM |
7104 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7105 | struct bfd_link_info *info) | |
| e86ce104 AM |
7106 | { |
| 7107 | struct ppc_link_hash_table *htab; | |
| 7108 | ||
| 7109 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7110 | if (htab == NULL) |
| 7111 | return FALSE; | |
| 7112 | ||
| b32547cd AM |
7113 | /* Provide any missing _save* and _rest* functions. */ |
| 7114 | if (htab->sfpr != NULL) | |
| 7115 | { | |
| 7116 | unsigned int i; | |
| 7117 | ||
| 7118 | htab->sfpr->size = 0; | |
| 7119 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7120 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7121 | return FALSE; | |
| 7122 | if (htab->sfpr->size == 0) | |
| 7123 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7124 | } | |
| 7125 | ||
| 7126 | if (bfd_link_relocatable (info)) | |
| 7127 | return TRUE; | |
| 7128 | ||
| 7129 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7130 | { |
| 7131 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7132 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7133 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7134 | if (!htab->elf.hgot->def_regular |
| 7135 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7136 | { | |
| 7137 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7138 | htab->elf.hgot->root.u.def.value = 0; | |
| 7139 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7140 | htab->elf.hgot->def_regular = 1; | |
| 7141 | htab->elf.hgot->root.linker_def = 1; | |
| 7142 | } | |
| dba6fa9b | 7143 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7144 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7145 | | STV_HIDDEN); | |
| 7146 | } | |
| c66bb0ee | 7147 | |
| 4ce794b7 | 7148 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 7149 | |
| b34976b6 | 7150 | return TRUE; |
| e86ce104 AM |
7151 | } |
| 7152 | ||
| 8a2058b5 AM |
7153 | /* Return true if we have dynamic relocs against H that apply to |
| 7154 | read-only sections. */ | |
| a345bc8d AM |
7155 | |
| 7156 | static bfd_boolean | |
| 7157 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7158 | { | |
| 7159 | struct ppc_link_hash_entry *eh; | |
| 7160 | struct elf_dyn_relocs *p; | |
| 7161 | ||
| 7162 | eh = (struct ppc_link_hash_entry *) h; | |
| 7163 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7164 | { | |
| 7165 | asection *s = p->sec->output_section; | |
| 7166 | ||
| 7167 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7168 | return TRUE; | |
| 7169 | } | |
| 7170 | return FALSE; | |
| 7171 | } | |
| 7172 | ||
| d311bc8b AM |
7173 | /* Return true if we have dynamic relocs against H or any of its weak |
| 7174 | aliases, that apply to read-only sections. */ | |
| 7175 | ||
| 7176 | static bfd_boolean | |
| 7177 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7178 | { | |
| 7179 | struct ppc_link_hash_entry *eh; | |
| 7180 | ||
| 7181 | eh = (struct ppc_link_hash_entry *) h; | |
| 7182 | do | |
| 7183 | { | |
| 7184 | if (readonly_dynrelocs (&eh->elf)) | |
| 7185 | return TRUE; | |
| 7186 | eh = eh->weakref; | |
| 7187 | } while (eh != NULL && &eh->elf != h); | |
| 7188 | ||
| 7189 | return FALSE; | |
| 7190 | } | |
| 8a2058b5 | 7191 | |
| 8a9e8e72 AM |
7192 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7193 | ||
| 7194 | static bfd_boolean | |
| 7195 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7196 | { | |
| 7197 | struct elf_dyn_relocs *p; | |
| 7198 | ||
| 7199 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7200 | if (p->pc_count != 0) | |
| 7201 | return TRUE; | |
| 7202 | return FALSE; | |
| 7203 | } | |
| 7204 | ||
| 8a2058b5 AM |
7205 | /* Return true if a global entry stub will be created for H. Valid |
| 7206 | for ELFv2 before plt entries have been allocated. */ | |
| 7207 | ||
| 7208 | static bfd_boolean | |
| 7209 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7210 | { | |
| 7211 | struct plt_entry *pent; | |
| 7212 | ||
| 7213 | if (!h->pointer_equality_needed | |
| 7214 | || h->def_regular) | |
| 7215 | return FALSE; | |
| 7216 | ||
| 7217 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7218 | if (pent->plt.refcount > 0 | |
| 7219 | && pent->addend == 0) | |
| 7220 | return TRUE; | |
| 7221 | ||
| 7222 | return FALSE; | |
| 7223 | } | |
| 7224 | ||
| e86ce104 AM |
7225 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7226 | regular object. The current definition is in some section of the | |
| 7227 | dynamic object, but we're not including those sections. We have to | |
| 7228 | change the definition to something the rest of the link can | |
| 7229 | understand. */ | |
| 7230 | ||
| b34976b6 | 7231 | static bfd_boolean |
| 4ce794b7 AM |
7232 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7233 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7234 | { |
| 7235 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7236 | asection *s; |
| e86ce104 AM |
7237 | |
| 7238 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7239 | if (htab == NULL) |
| 7240 | return FALSE; | |
| e86ce104 AM |
7241 | |
| 7242 | /* Deal with function syms. */ | |
| 7243 | if (h->type == STT_FUNC | |
| e054468f | 7244 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7245 | || h->needs_plt) |
| e86ce104 AM |
7246 | { |
| 7247 | /* Clear procedure linkage table information for any symbol that | |
| 7248 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7249 | struct plt_entry *ent; |
| 7250 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7251 | if (ent->plt.refcount > 0) | |
| 7252 | break; | |
| 8387904d | 7253 | if (ent == NULL |
| e054468f AM |
7254 | || (h->type != STT_GNU_IFUNC |
| 7255 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7256 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| a4b6fadd AM |
7257 | && h->root.type == bfd_link_hash_undefweak))) |
| 7258 | || ((struct ppc_link_hash_entry *) h)->save_res) | |
| 40b8271b | 7259 | { |
| 411e1bfb | 7260 | h->plt.plist = NULL; |
| f5385ebf | 7261 | h->needs_plt = 0; |
| d1eca1e4 | 7262 | h->pointer_equality_needed = 0; |
| 40b8271b | 7263 | } |
| 8a2058b5 | 7264 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7265 | { |
| d1eca1e4 AM |
7266 | /* Taking a function's address in a read/write section |
| 7267 | doesn't require us to define the function symbol in the | |
| 7268 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7269 | be used instead. The reason we prefer a few more dynamic |
| 7270 | relocs is that calling via a global entry stub costs a | |
| 7271 | few more instructions, and pointer_equality_needed causes | |
| 7272 | extra work in ld.so when resolving these symbols. */ | |
| 7273 | if (global_entry_stub (h) | |
| d311bc8b | 7274 | && !alias_readonly_dynrelocs (h)) |
| d1eca1e4 AM |
7275 | { |
| 7276 | h->pointer_equality_needed = 0; | |
| 8a2058b5 AM |
7277 | /* After adjust_dynamic_symbol, non_got_ref set in |
| 7278 | the non-pic case means that dyn_relocs for this | |
| 7279 | symbol should be discarded. */ | |
| d1eca1e4 AM |
7280 | h->non_got_ref = 0; |
| 7281 | } | |
| 7282 | ||
| a345bc8d AM |
7283 | /* If making a plt entry, then we don't need copy relocs. */ |
| 7284 | return TRUE; | |
| 7285 | } | |
| 5bd4f169 | 7286 | } |
| bbd7ec4a | 7287 | else |
| 411e1bfb | 7288 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7289 | |
| 7290 | /* If this is a weak symbol, and there is a real definition, the | |
| 7291 | processor independent code will have arranged for us to see the | |
| 7292 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7293 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7294 | { |
| f6e332e6 AM |
7295 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7296 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7297 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7298 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7299 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7300 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7301 | return TRUE; |
| 5bd4f169 AM |
7302 | } |
| 7303 | ||
| 5bd4f169 AM |
7304 | /* If we are creating a shared library, we must presume that the |
| 7305 | only references to the symbol are via the global offset table. | |
| 7306 | For such cases we need not do anything here; the relocations will | |
| 7307 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7308 | if (bfd_link_pic (info)) |
| b34976b6 | 7309 | return TRUE; |
| 5bd4f169 | 7310 | |
| 65f38f15 AM |
7311 | /* If there are no references to this symbol that do not use the |
| 7312 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7313 | if (!h->non_got_ref) |
| b34976b6 | 7314 | return TRUE; |
| 65f38f15 | 7315 | |
| b186458a | 7316 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7317 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7318 | |
| d93d1c80 AM |
7319 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7320 | || info->nocopyreloc | |
| a127494f | 7321 | |
| d93d1c80 AM |
7322 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7323 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| d311bc8b | 7324 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7325 | |
| d93d1c80 AM |
7326 | /* Protected variables do not work with .dynbss. The copy in |
| 7327 | .dynbss won't be used by the shared library with the protected | |
| 7328 | definition for the variable. Text relocations are preferable | |
| 7329 | to an incorrect program. */ | |
| 7330 | || h->protected_def) | |
| a127494f AM |
7331 | { |
| 7332 | h->non_got_ref = 0; | |
| 7333 | return TRUE; | |
| 7334 | } | |
| 7335 | ||
| 5d35169e | 7336 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7337 | { |
| 7338 | /* We should never get here, but unfortunately there are versions | |
| 7339 | of gcc out there that improperly (for this ABI) put initialized | |
| 7340 | function pointers, vtable refs and suchlike in read-only | |
| 7341 | sections. Allow them to proceed, but warn that this might | |
| 7342 | break at runtime. */ | |
| 25f53a85 | 7343 | info->callbacks->einfo |
| bc30df16 | 7344 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7345 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7346 | h->root.root.string); |
| 7347 | } | |
| 5d35169e AM |
7348 | |
| 7349 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7350 | is not a function. */ | |
| 7351 | ||
| 5bd4f169 AM |
7352 | /* We must allocate the symbol in our .dynbss section, which will |
| 7353 | become part of the .bss section of the executable. There will be | |
| 7354 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7355 | object will contain position independent code, so all references | |
| 7356 | from the dynamic object to this symbol will go through the global | |
| 7357 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7358 | determine the address it must put in the global offset table, so | |
| 7359 | both the dynamic object and the regular object will refer to the | |
| 7360 | same memory location for the variable. */ | |
| 5bd4f169 | 7361 | |
| 04c9666a AM |
7362 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7363 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7364 | runtime process image. We need to remember the offset into the |
| 7365 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7366 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7367 | { |
| eea6121a | 7368 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7369 | h->needs_copy = 1; |
| 5bd4f169 AM |
7370 | } |
| 7371 | ||
| 4ce794b7 | 7372 | s = htab->dynbss; |
| 5bd4f169 | 7373 | |
| 6cabe1ea | 7374 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7375 | } |
| 7376 | ||
| e86ce104 AM |
7377 | /* If given a function descriptor symbol, hide both the function code |
| 7378 | sym and the descriptor. */ | |
| 7379 | static void | |
| 4ce794b7 AM |
7380 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7381 | struct elf_link_hash_entry *h, | |
| 7382 | bfd_boolean force_local) | |
| e86ce104 | 7383 | { |
| 34814b9f | 7384 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7385 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7386 | ||
| 34814b9f AM |
7387 | eh = (struct ppc_link_hash_entry *) h; |
| 7388 | if (eh->is_func_descriptor) | |
| e86ce104 | 7389 | { |
| 34814b9f | 7390 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7391 | |
| 721956f4 | 7392 | if (fh == NULL) |
| d1329ca3 AM |
7393 | { |
| 7394 | const char *p, *q; | |
| 7395 | struct ppc_link_hash_table *htab; | |
| 7396 | char save; | |
| 7397 | ||
| 7398 | /* We aren't supposed to use alloca in BFD because on | |
| 7399 | systems which do not have alloca the version in libiberty | |
| 7400 | calls xmalloc, which might cause the program to crash | |
| 7401 | when it runs out of memory. This function doesn't have a | |
| 7402 | return status, so there's no way to gracefully return an | |
| 7403 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7404 | accessed; It's either a string in an ELF string table, |
| 7405 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7406 | |
| 34814b9f | 7407 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7408 | save = *p; |
| 7409 | *(char *) p = '.'; | |
| 7410 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7411 | if (htab == NULL) |
| 7412 | return; | |
| 7413 | ||
| 34814b9f AM |
7414 | fh = (struct ppc_link_hash_entry *) |
| 7415 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7416 | *(char *) p = save; |
| 7417 | ||
| 7418 | /* Unfortunately, if it so happens that the string we were | |
| 7419 | looking for was allocated immediately before this string, | |
| 7420 | then we overwrote the string terminator. That's the only | |
| 7421 | reason the lookup should fail. */ | |
| 7422 | if (fh == NULL) | |
| 7423 | { | |
| 34814b9f AM |
7424 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7425 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7426 | --q, --p; |
| 34814b9f AM |
7427 | if (q < eh->elf.root.root.string && *p == '.') |
| 7428 | fh = (struct ppc_link_hash_entry *) | |
| 7429 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7430 | } |
| 7431 | if (fh != NULL) | |
| 7432 | { | |
| 34814b9f AM |
7433 | eh->oh = fh; |
| 7434 | fh->oh = eh; | |
| d1329ca3 AM |
7435 | } |
| 7436 | } | |
| e86ce104 | 7437 | if (fh != NULL) |
| 34814b9f | 7438 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7439 | } |
| 7440 | } | |
| 7441 | ||
| 411e1bfb | 7442 | static bfd_boolean |
| 8843416a AM |
7443 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7444 | Elf_Internal_Sym **symp, | |
| 7445 | asection **symsecp, | |
| f961d9dd | 7446 | unsigned char **tls_maskp, |
| 8843416a AM |
7447 | Elf_Internal_Sym **locsymsp, |
| 7448 | unsigned long r_symndx, | |
| 7449 | bfd *ibfd) | |
| 411e1bfb | 7450 | { |
| 0ffa91dd | 7451 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7452 | |
| 7453 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7454 | { | |
| 7455 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7456 | struct elf_link_hash_entry *h; | |
| 7457 | ||
| 7458 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7459 | h = elf_follow_link (h); |
| 411e1bfb AM |
7460 | |
| 7461 | if (hp != NULL) | |
| 7462 | *hp = h; | |
| 7463 | ||
| 7464 | if (symp != NULL) | |
| 7465 | *symp = NULL; | |
| 7466 | ||
| 7467 | if (symsecp != NULL) | |
| 7468 | { | |
| 7469 | asection *symsec = NULL; | |
| 7470 | if (h->root.type == bfd_link_hash_defined | |
| 7471 | || h->root.type == bfd_link_hash_defweak) | |
| 7472 | symsec = h->root.u.def.section; | |
| 7473 | *symsecp = symsec; | |
| 7474 | } | |
| 7475 | ||
| e7b938ca | 7476 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7477 | { |
| 7478 | struct ppc_link_hash_entry *eh; | |
| 7479 | ||
| 7480 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7481 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7482 | } |
| 7483 | } | |
| 7484 | else | |
| 7485 | { | |
| 7486 | Elf_Internal_Sym *sym; | |
| 7487 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7488 | ||
| 7489 | if (locsyms == NULL) | |
| 7490 | { | |
| 7491 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7492 | if (locsyms == NULL) | |
| 7493 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7494 | symtab_hdr->sh_info, | |
| 7495 | 0, NULL, NULL, NULL); | |
| 7496 | if (locsyms == NULL) | |
| 7497 | return FALSE; | |
| 7498 | *locsymsp = locsyms; | |
| 7499 | } | |
| 7500 | sym = locsyms + r_symndx; | |
| 7501 | ||
| 7502 | if (hp != NULL) | |
| 7503 | *hp = NULL; | |
| 7504 | ||
| 7505 | if (symp != NULL) | |
| 7506 | *symp = sym; | |
| 7507 | ||
| 7508 | if (symsecp != NULL) | |
| cb33740c | 7509 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7510 | |
| e7b938ca | 7511 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7512 | { |
| 7513 | struct got_entry **lgot_ents; | |
| f961d9dd | 7514 | unsigned char *tls_mask; |
| 411e1bfb | 7515 | |
| e7b938ca | 7516 | tls_mask = NULL; |
| 411e1bfb AM |
7517 | lgot_ents = elf_local_got_ents (ibfd); |
| 7518 | if (lgot_ents != NULL) | |
| 7519 | { | |
| e054468f AM |
7520 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7521 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7522 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7523 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7524 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7525 | } |
| e7b938ca | 7526 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7527 | } |
| 7528 | } | |
| 7529 | return TRUE; | |
| 7530 | } | |
| 7531 | ||
| e7b938ca | 7532 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7533 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7534 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7535 | |
| 7536 | static int | |
| f961d9dd | 7537 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7538 | unsigned long *toc_symndx, |
| 7539 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7540 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7541 | const Elf_Internal_Rela *rel, |
| 7542 | bfd *ibfd) | |
| 411e1bfb AM |
7543 | { |
| 7544 | unsigned long r_symndx; | |
| 0d4792f7 | 7545 | int next_r; |
| 411e1bfb AM |
7546 | struct elf_link_hash_entry *h; |
| 7547 | Elf_Internal_Sym *sym; | |
| 7548 | asection *sec; | |
| 7549 | bfd_vma off; | |
| 7550 | ||
| 7551 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7552 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7553 | return 0; |
| 411e1bfb | 7554 | |
| e7b938ca | 7555 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7556 | || sec == NULL |
| 6bee8834 | 7557 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7558 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7559 | return 1; |
| 411e1bfb AM |
7560 | |
| 7561 | /* Look inside a TOC section too. */ | |
| 7562 | if (h != NULL) | |
| 7563 | { | |
| 7564 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7565 | off = h->root.u.def.value; | |
| 7566 | } | |
| 7567 | else | |
| 7568 | off = sym->st_value; | |
| 7569 | off += rel->r_addend; | |
| 7570 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7571 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7572 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7573 | if (toc_symndx != NULL) |
| 7574 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7575 | if (toc_addend != NULL) |
| 7576 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7577 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7578 | return 0; | |
| 854b41e7 | 7579 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7580 | && (next_r == -1 || next_r == -2)) |
| 7581 | return 1 - next_r; | |
| 951fd09b | 7582 | return 1; |
| 411e1bfb AM |
7583 | } |
| 7584 | ||
| 3b421ab3 AM |
7585 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7586 | ||
| 7587 | static struct tocsave_entry * | |
| 7588 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7589 | enum insert_option insert, | |
| 7590 | Elf_Internal_Sym **local_syms, | |
| 7591 | const Elf_Internal_Rela *irela, | |
| 7592 | bfd *ibfd) | |
| 7593 | { | |
| 7594 | unsigned long r_indx; | |
| 7595 | struct elf_link_hash_entry *h; | |
| 7596 | Elf_Internal_Sym *sym; | |
| 7597 | struct tocsave_entry ent, *p; | |
| 7598 | hashval_t hash; | |
| 7599 | struct tocsave_entry **slot; | |
| 7600 | ||
| 7601 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7602 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7603 | return NULL; | |
| 7604 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7605 | { | |
| 4eca0228 | 7606 | _bfd_error_handler |
| 3b421ab3 AM |
7607 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); |
| 7608 | return NULL; | |
| 7609 | } | |
| 7610 | ||
| 7611 | if (h != NULL) | |
| 7612 | ent.offset = h->root.u.def.value; | |
| 7613 | else | |
| 7614 | ent.offset = sym->st_value; | |
| 7615 | ent.offset += irela->r_addend; | |
| 7616 | ||
| 7617 | hash = tocsave_htab_hash (&ent); | |
| 7618 | slot = ((struct tocsave_entry **) | |
| 7619 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7620 | if (slot == NULL) | |
| 7621 | return NULL; | |
| 7622 | ||
| 7623 | if (*slot == NULL) | |
| 7624 | { | |
| 7625 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7626 | if (p == NULL) | |
| 7627 | return NULL; | |
| 7628 | *p = ent; | |
| 7629 | *slot = p; | |
| 7630 | } | |
| 7631 | return *slot; | |
| 7632 | } | |
| 7633 | ||
| 754021d0 | 7634 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7635 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7636 | |
| 7637 | static bfd_boolean | |
| 7638 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7639 | { | |
| 7640 | struct ppc_link_hash_entry *eh; | |
| 7641 | asection *sym_sec; | |
| 74f0fb50 | 7642 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7643 | |
| 7644 | if (h->root.type == bfd_link_hash_indirect) | |
| 7645 | return TRUE; | |
| 7646 | ||
| 754021d0 AM |
7647 | if (h->root.type != bfd_link_hash_defined |
| 7648 | && h->root.type != bfd_link_hash_defweak) | |
| 7649 | return TRUE; | |
| 7650 | ||
| 7651 | eh = (struct ppc_link_hash_entry *) h; | |
| 7652 | if (eh->adjust_done) | |
| 7653 | return TRUE; | |
| 7654 | ||
| 7655 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7656 | opd = get_opd_info (sym_sec); |
| 7657 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7658 | { |
| 51aecdc5 | 7659 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7660 | if (adjust == -1) |
| 7661 | { | |
| 7662 | /* This entry has been deleted. */ | |
| b3fac117 | 7663 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7664 | if (dsec == NULL) |
| 7665 | { | |
| 7666 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7667 | if (discarded_section (dsec)) |
| 81688140 | 7668 | { |
| b3fac117 | 7669 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7670 | break; |
| 7671 | } | |
| 7672 | } | |
| 4025353c | 7673 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7674 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7675 | } |
| 7676 | else | |
| 7677 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7678 | eh->adjust_done = 1; |
| 7679 | } | |
| 7680 | return TRUE; | |
| 7681 | } | |
| 7682 | ||
| 8c1d1bb8 | 7683 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7684 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7685 | have already been determined. */ |
| 7686 | ||
| 7687 | static bfd_boolean | |
| 7688 | dec_dynrel_count (bfd_vma r_info, | |
| 7689 | asection *sec, | |
| 7690 | struct bfd_link_info *info, | |
| 7691 | Elf_Internal_Sym **local_syms, | |
| 7692 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7693 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7694 | { |
| 7695 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7696 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7697 | |
| 7698 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7699 | should be kept in sync with the code in check_relocs. */ | |
| 7700 | r_type = ELF64_R_TYPE (r_info); | |
| 7701 | switch (r_type) | |
| 7702 | { | |
| 7703 | default: | |
| 7704 | return TRUE; | |
| 7705 | ||
| 7706 | case R_PPC64_TPREL16: | |
| 7707 | case R_PPC64_TPREL16_LO: | |
| 7708 | case R_PPC64_TPREL16_HI: | |
| 7709 | case R_PPC64_TPREL16_HA: | |
| 7710 | case R_PPC64_TPREL16_DS: | |
| 7711 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7712 | case R_PPC64_TPREL16_HIGH: |
| 7713 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7714 | case R_PPC64_TPREL16_HIGHER: |
| 7715 | case R_PPC64_TPREL16_HIGHERA: | |
| 7716 | case R_PPC64_TPREL16_HIGHEST: | |
| 7717 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 7718 | if (!bfd_link_pic (info)) |
| 8c1d1bb8 AM |
7719 | return TRUE; |
| 7720 | ||
| 7721 | case R_PPC64_TPREL64: | |
| 7722 | case R_PPC64_DTPMOD64: | |
| 7723 | case R_PPC64_DTPREL64: | |
| 7724 | case R_PPC64_ADDR64: | |
| 7725 | case R_PPC64_REL30: | |
| 7726 | case R_PPC64_REL32: | |
| 7727 | case R_PPC64_REL64: | |
| 7728 | case R_PPC64_ADDR14: | |
| 7729 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7730 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7731 | case R_PPC64_ADDR16: | |
| 7732 | case R_PPC64_ADDR16_DS: | |
| 7733 | case R_PPC64_ADDR16_HA: | |
| 7734 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7735 | case R_PPC64_ADDR16_HIGH: |
| 7736 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7737 | case R_PPC64_ADDR16_HIGHER: |
| 7738 | case R_PPC64_ADDR16_HIGHERA: | |
| 7739 | case R_PPC64_ADDR16_HIGHEST: | |
| 7740 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7741 | case R_PPC64_ADDR16_LO: | |
| 7742 | case R_PPC64_ADDR16_LO_DS: | |
| 7743 | case R_PPC64_ADDR24: | |
| 7744 | case R_PPC64_ADDR32: | |
| 7745 | case R_PPC64_UADDR16: | |
| 7746 | case R_PPC64_UADDR32: | |
| 7747 | case R_PPC64_UADDR64: | |
| 7748 | case R_PPC64_TOC: | |
| 7749 | break; | |
| 7750 | } | |
| 7751 | ||
| 7752 | if (local_syms != NULL) | |
| 7753 | { | |
| 7754 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7755 | bfd *ibfd = sec->owner; |
| 7756 | ||
| 7757 | r_symndx = ELF64_R_SYM (r_info); | |
| 7758 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7759 | return FALSE; | |
| 7760 | } | |
| 7761 | ||
| 0e1862bb | 7762 | if ((bfd_link_pic (info) |
| 1d483afe | 7763 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7764 | || (h != NULL |
| 198f1157 | 7765 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7766 | || h->root.type == bfd_link_hash_defweak |
| 7767 | || !h->def_regular)))) | |
| 7768 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7769 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7770 | && h != NULL |
| 7771 | && (h->root.type == bfd_link_hash_defweak | |
| 7772 | || !h->def_regular))) | |
| 7773 | ; | |
| 7774 | else | |
| 7775 | return TRUE; | |
| 7776 | ||
| 7777 | if (h != NULL) | |
| 6edfbbad | 7778 | { |
| 19e08130 AM |
7779 | struct elf_dyn_relocs *p; |
| 7780 | struct elf_dyn_relocs **pp; | |
| 7781 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7782 | ||
| 7783 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7784 | with local syms for a given section. Also, symbol flags are | |
| 7785 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7786 | report a dynreloc miscount. */ | |
| 7787 | if (*pp == NULL && info->gc_sections) | |
| 7788 | return TRUE; | |
| 7789 | ||
| 7790 | while ((p = *pp) != NULL) | |
| 60124e18 | 7791 | { |
| 19e08130 AM |
7792 | if (p->sec == sec) |
| 7793 | { | |
| 7794 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7795 | p->pc_count -= 1; | |
| 7796 | p->count -= 1; | |
| 7797 | if (p->count == 0) | |
| 7798 | *pp = p->next; | |
| 7799 | return TRUE; | |
| 7800 | } | |
| 7801 | pp = &p->next; | |
| 60124e18 | 7802 | } |
| 6edfbbad | 7803 | } |
| 19e08130 AM |
7804 | else |
| 7805 | { | |
| 7806 | struct ppc_dyn_relocs *p; | |
| 7807 | struct ppc_dyn_relocs **pp; | |
| 7808 | void *vpp; | |
| 7809 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7810 | |
| 19e08130 AM |
7811 | if (local_syms == NULL) |
| 7812 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7813 | if (sym_sec == NULL) | |
| 7814 | sym_sec = sec; | |
| c57da1a7 | 7815 | |
| 19e08130 AM |
7816 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7817 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7818 | ||
| 7819 | if (*pp == NULL && info->gc_sections) | |
| 7820 | return TRUE; | |
| 7821 | ||
| 7822 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7823 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7824 | { |
| 19e08130 AM |
7825 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7826 | { | |
| 7827 | p->count -= 1; | |
| 7828 | if (p->count == 0) | |
| 7829 | *pp = p->next; | |
| 7830 | return TRUE; | |
| 7831 | } | |
| 7832 | pp = &p->next; | |
| 8c1d1bb8 | 7833 | } |
| 8c1d1bb8 AM |
7834 | } |
| 7835 | ||
| 695344c0 | 7836 | /* xgettext:c-format */ |
| 8de848d8 | 7837 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7838 | sec->owner, sec); |
| 8c1d1bb8 AM |
7839 | bfd_set_error (bfd_error_bad_value); |
| 7840 | return FALSE; | |
| 7841 | } | |
| 7842 | ||
| 754021d0 AM |
7843 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7844 | only remove those associated with functions in discarded link-once | |
| 7845 | sections, or weakly defined functions that have been overridden. It | |
| 7846 | would be possible to remove many more entries for statically linked | |
| 7847 | applications. */ | |
| 7848 | ||
| b34976b6 | 7849 | bfd_boolean |
| e7d1c40c | 7850 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7851 | { |
| 7852 | bfd *ibfd; | |
| 754021d0 | 7853 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7854 | asection *need_pad = NULL; |
| e7d1c40c AM |
7855 | struct ppc_link_hash_table *htab; |
| 7856 | ||
| 7857 | htab = ppc_hash_table (info); | |
| 7858 | if (htab == NULL) | |
| 7859 | return FALSE; | |
| 1e2f5b6e | 7860 | |
| c72f2fb2 | 7861 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7862 | { |
| 7863 | asection *sec; | |
| 7864 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7865 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7866 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7867 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7868 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7869 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7870 | |
| 854b41e7 AM |
7871 | if (!is_ppc64_elf (ibfd)) |
| 7872 | continue; | |
| 7873 | ||
| 1e2f5b6e | 7874 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7875 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7876 | continue; |
| 7877 | ||
| dbaa2011 | 7878 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7879 | continue; |
| 7880 | ||
| 1e2f5b6e AM |
7881 | if (sec->output_section == bfd_abs_section_ptr) |
| 7882 | continue; | |
| 7883 | ||
| 7884 | /* Look through the section relocs. */ | |
| 7885 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7886 | continue; | |
| 7887 | ||
| 6cdc0ccc | 7888 | local_syms = NULL; |
| 0ffa91dd | 7889 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7890 | |
| 7891 | /* Read the relocations. */ | |
| 4ce794b7 | 7892 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7893 | info->keep_memory); |
| 1e2f5b6e | 7894 | if (relstart == NULL) |
| b34976b6 | 7895 | return FALSE; |
| 1e2f5b6e AM |
7896 | |
| 7897 | /* First run through the relocs to check they are sane, and to | |
| 7898 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7899 | need_edit = FALSE; |
| 51aecdc5 | 7900 | broken = FALSE; |
| 3f764659 | 7901 | need_pad = sec; |
| 1e2f5b6e | 7902 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7903 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7904 | { |
| 04c9666a | 7905 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7906 | unsigned long r_symndx; |
| 7907 | asection *sym_sec; | |
| 7908 | struct elf_link_hash_entry *h; | |
| 7909 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7910 | bfd_vma offset; |
| 1e2f5b6e | 7911 | |
| 51aecdc5 | 7912 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7913 | only interested in the reloc pointing to a function entry |
| 7914 | point. */ | |
| 51aecdc5 AM |
7915 | offset = rel->r_offset; |
| 7916 | if (rel + 1 == relend | |
| 7917 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7918 | { |
| 7919 | /* If someone messes with .opd alignment then after a | |
| 7920 | "ld -r" we might have padding in the middle of .opd. | |
| 7921 | Also, there's nothing to prevent someone putting | |
| 7922 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7923 | optimization for them! */ |
| 3f764659 | 7924 | broken_opd: |
| 4eca0228 | 7925 | _bfd_error_handler |
| d003868e | 7926 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7927 | broken = TRUE; |
| 1e2f5b6e AM |
7928 | break; |
| 7929 | } | |
| 7930 | ||
| 50bc7936 AM |
7931 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7932 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7933 | { | |
| 4eca0228 | 7934 | _bfd_error_handler |
| 695344c0 | 7935 | /* xgettext:c-format */ |
| d003868e AM |
7936 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7937 | ibfd, r_type); | |
| 51aecdc5 | 7938 | broken = TRUE; |
| 50bc7936 AM |
7939 | break; |
| 7940 | } | |
| 7941 | ||
| 1e2f5b6e | 7942 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7943 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7944 | r_symndx, ibfd)) | |
| 50bc7936 | 7945 | goto error_ret; |
| 1e2f5b6e AM |
7946 | |
| 7947 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7948 | { | |
| 411e1bfb AM |
7949 | const char *sym_name; |
| 7950 | if (h != NULL) | |
| 7951 | sym_name = h->root.root.string; | |
| 7952 | else | |
| 26c61ae5 L |
7953 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7954 | sym_sec); | |
| 411e1bfb | 7955 | |
| 4eca0228 | 7956 | _bfd_error_handler |
| 695344c0 | 7957 | /* xgettext:c-format */ |
| d003868e AM |
7958 | (_("%B: undefined sym `%s' in .opd section"), |
| 7959 | ibfd, sym_name); | |
| 51aecdc5 | 7960 | broken = TRUE; |
| 1e2f5b6e AM |
7961 | break; |
| 7962 | } | |
| 7963 | ||
| 51020317 AM |
7964 | /* opd entries are always for functions defined in the |
| 7965 | current input bfd. If the symbol isn't defined in the | |
| 7966 | input bfd, then we won't be using the function in this | |
| 7967 | bfd; It must be defined in a linkonce section in another | |
| 7968 | bfd, or is weak. It's also possible that we are | |
| 7969 | discarding the function due to a linker script /DISCARD/, | |
| 7970 | which we test for via the output_section. */ | |
| 7971 | if (sym_sec->owner != ibfd | |
| 7972 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7973 | need_edit = TRUE; |
| 1e2f5b6e | 7974 | |
| 50bc7936 | 7975 | rel += 2; |
| 51aecdc5 AM |
7976 | if (rel + 1 == relend |
| 7977 | || (rel + 2 < relend | |
| 7978 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7979 | ++rel; | |
| 7980 | ||
| 7981 | if (rel == relend) | |
| 3f764659 JJ |
7982 | { |
| 7983 | if (sec->size == offset + 24) | |
| 7984 | { | |
| 7985 | need_pad = NULL; | |
| 7986 | break; | |
| 7987 | } | |
| 51aecdc5 | 7988 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7989 | { |
| 7990 | cnt_16b++; | |
| 7991 | break; | |
| 7992 | } | |
| 7993 | goto broken_opd; | |
| 7994 | } | |
| 3f764659 JJ |
7995 | else if (rel + 1 < relend |
| 7996 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7997 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7998 | { | |
| 51aecdc5 AM |
7999 | if (rel[0].r_offset == offset + 16) |
| 8000 | cnt_16b++; | |
| 8001 | else if (rel[0].r_offset != offset + 24) | |
| 8002 | goto broken_opd; | |
| 3f764659 JJ |
8003 | } |
| 8004 | else | |
| 8005 | goto broken_opd; | |
| 1e2f5b6e AM |
8006 | } |
| 8007 | ||
| e7d1c40c | 8008 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 8009 | |
| 51aecdc5 | 8010 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
8011 | { |
| 8012 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 8013 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 8014 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 8015 | bfd_byte *new_contents; |
| 74f0fb50 AM |
8016 | bfd_size_type amt; |
| 8017 | ||
| 983bddc8 | 8018 | new_contents = NULL; |
| 51aecdc5 | 8019 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 8020 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 8021 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
8022 | if (opd->adjust == NULL) |
| 8023 | return FALSE; | |
| 8024 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
8025 | |
| 8026 | /* This seems a waste of time as input .opd sections are all | |
| 8027 | zeros as generated by gcc, but I suppose there's no reason | |
| 8028 | this will always be so. We might start putting something in | |
| 8029 | the third word of .opd entries. */ | |
| 8030 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 8031 | { | |
| eea6121a AM |
8032 | bfd_byte *loc; |
| 8033 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 8034 | { |
| eea6121a AM |
8035 | if (loc != NULL) |
| 8036 | free (loc); | |
| 50bc7936 | 8037 | error_ret: |
| 6cdc0ccc AM |
8038 | if (local_syms != NULL |
| 8039 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8040 | free (local_syms); | |
| 6cdc0ccc AM |
8041 | if (elf_section_data (sec)->relocs != relstart) |
| 8042 | free (relstart); | |
| b34976b6 | 8043 | return FALSE; |
| 6cdc0ccc | 8044 | } |
| 1e2f5b6e AM |
8045 | sec->contents = loc; |
| 8046 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8047 | } | |
| 8048 | ||
| 8049 | elf_section_data (sec)->relocs = relstart; | |
| 8050 | ||
| 3f764659 | 8051 | new_contents = sec->contents; |
| 3f764659 JJ |
8052 | if (add_aux_fields) |
| 8053 | { | |
| 8054 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 8055 | if (new_contents == NULL) | |
| 8056 | return FALSE; | |
| 51aecdc5 | 8057 | need_pad = NULL; |
| 3f764659 | 8058 | } |
| b4f4e59f AM |
8059 | wptr = new_contents; |
| 8060 | rptr = sec->contents; | |
| 1e2f5b6e | 8061 | write_rel = relstart; |
| 51aecdc5 | 8062 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8063 | { |
| 50bc7936 AM |
8064 | unsigned long r_symndx; |
| 8065 | asection *sym_sec; | |
| 8066 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8067 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8068 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8069 | long opd_ent_size; |
| 8070 | Elf_Internal_Rela *next_rel; | |
| 8071 | bfd_boolean skip; | |
| 50bc7936 AM |
8072 | |
| 8073 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8074 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8075 | r_symndx, ibfd)) |
| 50bc7936 AM |
8076 | goto error_ret; |
| 8077 | ||
| 51aecdc5 AM |
8078 | next_rel = rel + 2; |
| 8079 | if (next_rel + 1 == relend | |
| 8080 | || (next_rel + 2 < relend | |
| 8081 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8082 | ++next_rel; | |
| 8083 | ||
| 8084 | /* See if the .opd entry is full 24 byte or | |
| 8085 | 16 byte (with fd_aux entry overlapped with next | |
| 8086 | fd_func). */ | |
| 8087 | opd_ent_size = 24; | |
| 8088 | if (next_rel == relend) | |
| 1e2f5b6e | 8089 | { |
| 51aecdc5 | 8090 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8091 | opd_ent_size = 16; |
| 51aecdc5 AM |
8092 | } |
| 8093 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8094 | opd_ent_size = 16; | |
| 3f764659 | 8095 | |
| 51aecdc5 AM |
8096 | if (h != NULL |
| 8097 | && h->root.root.string[0] == '.') | |
| 8098 | { | |
| 8099 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab); | |
| 8100 | if (fdh != NULL | |
| 8101 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 8102 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8103 | fdh = NULL; | |
| 8104 | } | |
| 1e2f5b6e | 8105 | |
| 51aecdc5 AM |
8106 | skip = (sym_sec->owner != ibfd |
| 8107 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8108 | if (skip) | |
| 8109 | { | |
| 8110 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8111 | { |
| 51aecdc5 AM |
8112 | /* Arrange for the function descriptor sym |
| 8113 | to be dropped. */ | |
| 8114 | fdh->elf.root.u.def.value = 0; | |
| 8115 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8116 | } |
| 51aecdc5 | 8117 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8118 | |
| 0e1862bb | 8119 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8120 | rel = next_rel; |
| 8121 | else | |
| 8122 | while (1) | |
| 8123 | { | |
| 8124 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8125 | NULL, h, sym)) | |
| 8126 | goto error_ret; | |
| 754021d0 | 8127 | |
| 51aecdc5 AM |
8128 | if (++rel == next_rel) |
| 8129 | break; | |
| 1e2f5b6e | 8130 | |
| 51aecdc5 AM |
8131 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8132 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8133 | r_symndx, ibfd)) | |
| 8134 | goto error_ret; | |
| 8135 | } | |
| 50bc7936 AM |
8136 | } |
| 8137 | else | |
| 1e2f5b6e | 8138 | { |
| 51aecdc5 AM |
8139 | /* We'll be keeping this opd entry. */ |
| 8140 | long adjust; | |
| 8141 | ||
| 8142 | if (fdh != NULL) | |
| 8143 | { | |
| 8144 | /* Redefine the function descriptor symbol to | |
| 8145 | this location in the opd section. It is | |
| 8146 | necessary to update the value here rather | |
| 8147 | than using an array of adjustments as we do | |
| 8148 | for local symbols, because various places | |
| 8149 | in the generic ELF code use the value | |
| 8150 | stored in u.def.value. */ | |
| 8151 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8152 | fdh->adjust_done = 1; | |
| 8153 | } | |
| 8154 | ||
| 8155 | /* Local syms are a bit tricky. We could | |
| 8156 | tweak them as they can be cached, but | |
| 8157 | we'd need to look through the local syms | |
| 8158 | for the function descriptor sym which we | |
| 8159 | don't have at the moment. So keep an | |
| 8160 | array of adjustments. */ | |
| 8161 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8162 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8163 | ||
| 8164 | if (wptr != rptr) | |
| 8165 | memcpy (wptr, rptr, opd_ent_size); | |
| 8166 | wptr += opd_ent_size; | |
| 8167 | if (add_aux_fields && opd_ent_size == 16) | |
| 8168 | { | |
| 8169 | memset (wptr, '\0', 8); | |
| 8170 | wptr += 8; | |
| 8171 | } | |
| 8172 | ||
| 50bc7936 | 8173 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8174 | new opd entries. */ |
| 8175 | for ( ; rel != next_rel; ++rel) | |
| 8176 | { | |
| 8177 | rel->r_offset += adjust; | |
| 8178 | if (write_rel != rel) | |
| 8179 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8180 | ++write_rel; | |
| 8181 | } | |
| 1e2f5b6e | 8182 | } |
| 51aecdc5 AM |
8183 | |
| 8184 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8185 | } |
| 8186 | ||
| 3f764659 | 8187 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8188 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8189 | if (add_aux_fields) |
| 8190 | { | |
| 8191 | free (sec->contents); | |
| 8192 | sec->contents = new_contents; | |
| 8193 | } | |
| 8194 | ||
| 05bf9422 | 8195 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8196 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8197 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8198 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8199 | some_edited = TRUE; |
| 1e2f5b6e | 8200 | } |
| 6cdc0ccc | 8201 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8202 | free (relstart); |
| 6cdc0ccc | 8203 | |
| 411e1bfb AM |
8204 | if (local_syms != NULL |
| 8205 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8206 | { | |
| 8207 | if (!info->keep_memory) | |
| 8208 | free (local_syms); | |
| 8209 | else | |
| 8210 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8211 | } | |
| 8212 | } | |
| 8213 | ||
| 754021d0 AM |
8214 | if (some_edited) |
| 8215 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8216 | ||
| 3f764659 JJ |
8217 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8218 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8219 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8220 | { |
| 8221 | bfd_byte *p; | |
| 8222 | ||
| 8223 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8224 | { | |
| 8225 | BFD_ASSERT (need_pad->size > 0); | |
| 8226 | ||
| 8227 | p = bfd_malloc (need_pad->size + 8); | |
| 8228 | if (p == NULL) | |
| 8229 | return FALSE; | |
| 699733f6 | 8230 | |
| 3f764659 JJ |
8231 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8232 | p, 0, need_pad->size)) | |
| 8233 | return FALSE; | |
| 8234 | ||
| 8235 | need_pad->contents = p; | |
| 8236 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8237 | } | |
| 8238 | else | |
| 8239 | { | |
| 8240 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8241 | if (p == NULL) | |
| 8242 | return FALSE; | |
| 8243 | ||
| 8244 | need_pad->contents = p; | |
| 8245 | } | |
| 8246 | ||
| 8247 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8248 | need_pad->size += 8; | |
| 8249 | } | |
| 8250 | ||
| 411e1bfb AM |
8251 | return TRUE; |
| 8252 | } | |
| 8253 | ||
| e1918d23 | 8254 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8255 | |
| e1918d23 | 8256 | asection * |
| e7d1c40c | 8257 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8258 | { |
| 411e1bfb AM |
8259 | struct ppc_link_hash_table *htab; |
| 8260 | ||
| 411e1bfb | 8261 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8262 | if (htab == NULL) |
| 8263 | return NULL; | |
| 8264 | ||
| ee67d69a AM |
8265 | if (abiversion (info->output_bfd) == 1) |
| 8266 | htab->opd_abi = 1; | |
| 8267 | ||
| e7d1c40c | 8268 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8269 | htab->do_multi_toc = 0; |
| 8270 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8271 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8272 | |
| 3a71aa26 AM |
8273 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8274 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8275 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8276 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8277 | if (htab->tls_get_addr != NULL) | |
| 8278 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8279 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8280 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8281 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8282 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8283 | { |
| 8284 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8285 | ||
| 8286 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8287 | FALSE, FALSE, TRUE); | |
| 8288 | if (opt != NULL) | |
| 8289 | func_desc_adjust (opt, info); | |
| 8290 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8291 | FALSE, FALSE, TRUE); | |
| 8292 | if (opt_fd != NULL | |
| 8293 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8294 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8295 | { | |
| 8296 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8297 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8298 | be calling __tls_get_addr via a plt call stub, then | |
| 8299 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8300 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8301 | if (htab->elf.dynamic_sections_created | |
| 8302 | && tga_fd != NULL | |
| 8303 | && (tga_fd->type == STT_FUNC | |
| 8304 | || tga_fd->needs_plt) | |
| 8305 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8306 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8307 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8308 | { | |
| 8309 | struct plt_entry *ent; | |
| 8310 | ||
| 8311 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8312 | if (ent->plt.refcount > 0) | |
| 8313 | break; | |
| 8314 | if (ent != NULL) | |
| 8315 | { | |
| 8316 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8317 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8318 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 3bd43ebc | 8319 | opt_fd->forced_local = 0; |
| a7f2871e AM |
8320 | if (opt_fd->dynindx != -1) |
| 8321 | { | |
| 8322 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8323 | opt_fd->dynindx = -1; | |
| 8324 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8325 | opt_fd->dynstr_index); | |
| 8326 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8327 | return NULL; |
| a7f2871e AM |
8328 | } |
| 8329 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8330 | tga = &htab->tls_get_addr->elf; | |
| 8331 | if (opt != NULL && tga != NULL) | |
| 8332 | { | |
| 8333 | tga->root.type = bfd_link_hash_indirect; | |
| 8334 | tga->root.u.i.link = &opt->root; | |
| 8335 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 3bd43ebc | 8336 | opt->forced_local = 0; |
| a7f2871e AM |
8337 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8338 | tga->forced_local); | |
| 8339 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8340 | } | |
| 8341 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8342 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8343 | if (htab->tls_get_addr != NULL) | |
| 8344 | { | |
| 8345 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8346 | htab->tls_get_addr->is_func = 1; | |
| 8347 | } | |
| 8348 | } | |
| 8349 | } | |
| 8350 | } | |
| 7c9cf415 AM |
8351 | else if (htab->params->tls_get_addr_opt < 0) |
| 8352 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8353 | } |
| 33c0ec9d | 8354 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8355 | } |
| 8387904d | 8356 | |
| 3a71aa26 AM |
8357 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8358 | HASH1 or HASH2. */ | |
| 8387904d | 8359 | |
| 3a71aa26 AM |
8360 | static bfd_boolean |
| 8361 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8362 | const Elf_Internal_Rela *rel, | |
| 8363 | const struct ppc_link_hash_entry *hash1, | |
| 8364 | const struct ppc_link_hash_entry *hash2) | |
| 8365 | { | |
| 8366 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8367 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8368 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8369 | ||
| e054468f | 8370 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8371 | { |
| 3a71aa26 AM |
8372 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8373 | struct elf_link_hash_entry *h; | |
| 8387904d | 8374 | |
| 3a71aa26 | 8375 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8376 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8377 | if (h == &hash1->elf || h == &hash2->elf) |
| 8378 | return TRUE; | |
| a48ebf4d | 8379 | } |
| 3a71aa26 | 8380 | return FALSE; |
| 951fd09b | 8381 | } |
| 411e1bfb | 8382 | |
| 951fd09b AM |
8383 | /* Run through all the TLS relocs looking for optimization |
| 8384 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8385 | a preliminary section layout so that we know the TLS segment | |
| 8386 | offsets. We can't optimize earlier because some optimizations need | |
| 8387 | to know the tp offset, and we need to optimize before allocating | |
| 8388 | dynamic relocations. */ | |
| 8389 | ||
| 8390 | bfd_boolean | |
| 33c0ec9d | 8391 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8392 | { |
| 8393 | bfd *ibfd; | |
| 8394 | asection *sec; | |
| 8395 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8396 | unsigned char *toc_ref; |
| 102890f0 | 8397 | int pass; |
| 951fd09b | 8398 | |
| 3cbc1e5e | 8399 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8400 | return TRUE; |
| 8401 | ||
| 951fd09b | 8402 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8403 | if (htab == NULL) |
| 8404 | return FALSE; | |
| 8405 | ||
| 663a1470 AM |
8406 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8407 | entries involved with tls relocs, and check that tls relocs | |
| 8408 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8409 | such a call. If they are not, we can't do any tls optimization. | |
| 8410 | On the second pass twiddle tls_mask flags to notify | |
| 8411 | relocate_section that optimization can be done, and adjust got | |
| 8412 | and plt refcounts. */ | |
| 8413 | toc_ref = NULL; | |
| 8414 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8415 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8416 | { |
| 8417 | Elf_Internal_Sym *locsyms = NULL; | |
| 8418 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8419 | ||
| 102890f0 AM |
8420 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8421 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8422 | { | |
| 8423 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8424 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8425 | |
| 102890f0 AM |
8426 | /* Read the relocations. */ |
| 8427 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8428 | info->keep_memory); | |
| 8429 | if (relstart == NULL) | |
| 2915c55b JK |
8430 | { |
| 8431 | free (toc_ref); | |
| 8432 | return FALSE; | |
| 8433 | } | |
| 411e1bfb | 8434 | |
| 102890f0 AM |
8435 | relend = relstart + sec->reloc_count; |
| 8436 | for (rel = relstart; rel < relend; rel++) | |
| 8437 | { | |
| 8438 | enum elf_ppc64_reloc_type r_type; | |
| 8439 | unsigned long r_symndx; | |
| 8440 | struct elf_link_hash_entry *h; | |
| 8441 | Elf_Internal_Sym *sym; | |
| 8442 | asection *sym_sec; | |
| f961d9dd AM |
8443 | unsigned char *tls_mask; |
| 8444 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8445 | bfd_vma value; |
| 8446 | bfd_boolean ok_tprel, is_local; | |
| 8447 | long toc_ref_index = 0; | |
| 8448 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8449 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8450 | |
| 102890f0 AM |
8451 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8452 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8453 | r_symndx, ibfd)) | |
| 8454 | { | |
| 8455 | err_free_rel: | |
| 8456 | if (elf_section_data (sec)->relocs != relstart) | |
| 8457 | free (relstart); | |
| 8458 | if (toc_ref != NULL) | |
| 8459 | free (toc_ref); | |
| 8460 | if (locsyms != NULL | |
| 0ffa91dd | 8461 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8462 | != (unsigned char *) locsyms)) |
| 8463 | free (locsyms); | |
| 663a1470 | 8464 | return ret; |
| 102890f0 | 8465 | } |
| 411e1bfb | 8466 | |
| 102890f0 AM |
8467 | if (h != NULL) |
| 8468 | { | |
| 766bc656 AM |
8469 | if (h->root.type == bfd_link_hash_defined |
| 8470 | || h->root.type == bfd_link_hash_defweak) | |
| 8471 | value = h->root.u.def.value; | |
| 8472 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8473 | value = 0; | |
| 8474 | else | |
| 663a1470 AM |
8475 | { |
| 8476 | found_tls_get_addr_arg = 0; | |
| 8477 | continue; | |
| 8478 | } | |
| 102890f0 AM |
8479 | } |
| 8480 | else | |
| 8481 | /* Symbols referenced by TLS relocs must be of type | |
| 8482 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8483 | value = sym->st_value; | |
| 8484 | ||
| 8485 | ok_tprel = FALSE; | |
| 8486 | is_local = FALSE; | |
| 8487 | if (h == NULL | |
| 8488 | || !h->def_dynamic) | |
| 8489 | { | |
| 8490 | is_local = TRUE; | |
| 766bc656 AM |
8491 | if (h != NULL |
| 8492 | && h->root.type == bfd_link_hash_undefweak) | |
| 8493 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8494 | else if (sym_sec != NULL |
| 8495 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8496 | { |
| 8497 | value += sym_sec->output_offset; | |
| 8498 | value += sym_sec->output_section->vma; | |
| 8499 | value -= htab->elf.tls_sec->vma; | |
| 8500 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8501 | < (bfd_vma) 1 << 32); | |
| 8502 | } | |
| 102890f0 | 8503 | } |
| 951fd09b | 8504 | |
| 102890f0 | 8505 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8506 | /* If this section has old-style __tls_get_addr calls |
| 8507 | without marker relocs, then check that each | |
| 8508 | __tls_get_addr call reloc is preceded by a reloc | |
| 8509 | that conceivably belongs to the __tls_get_addr arg | |
| 8510 | setup insn. If we don't find matching arg setup | |
| 8511 | relocs, don't do any tls optimization. */ | |
| 8512 | if (pass == 0 | |
| 8513 | && sec->has_tls_get_addr_call | |
| 8514 | && h != NULL | |
| 8515 | && (h == &htab->tls_get_addr->elf | |
| 8516 | || h == &htab->tls_get_addr_fd->elf) | |
| 8517 | && !found_tls_get_addr_arg | |
| 8518 | && is_branch_reloc (r_type)) | |
| 8519 | { | |
| 25f53a85 | 8520 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8521 | "TLS optimization disabled\n"), |
| 8522 | ibfd, sec, rel->r_offset); | |
| 8523 | ret = TRUE; | |
| 8524 | goto err_free_rel; | |
| 8525 | } | |
| 8526 | ||
| 8527 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8528 | switch (r_type) |
| 8529 | { | |
| 8530 | case R_PPC64_GOT_TLSLD16: | |
| 8531 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8532 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8533 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8534 | /* Fall through. */ |
| 102890f0 AM |
8535 | |
| 8536 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8537 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8538 | /* These relocs should never be against a symbol | |
| 8539 | defined in a shared lib. Leave them alone if | |
| 8540 | that turns out to be the case. */ | |
| 8541 | if (!is_local) | |
| 8542 | continue; | |
| 411e1bfb | 8543 | |
| 102890f0 | 8544 | /* LD -> LE */ |
| 411e1bfb | 8545 | tls_set = 0; |
| 102890f0 AM |
8546 | tls_clear = TLS_LD; |
| 8547 | tls_type = TLS_TLS | TLS_LD; | |
| 8548 | break; | |
| 411e1bfb | 8549 | |
| 102890f0 AM |
8550 | case R_PPC64_GOT_TLSGD16: |
| 8551 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8552 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8553 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8554 | /* Fall through. */ |
| 102890f0 AM |
8555 | |
| 8556 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8557 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8558 | if (ok_tprel) | |
| 8559 | /* GD -> LE */ | |
| 411e1bfb | 8560 | tls_set = 0; |
| 102890f0 AM |
8561 | else |
| 8562 | /* GD -> IE */ | |
| 8563 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8564 | tls_clear = TLS_GD; | |
| 8565 | tls_type = TLS_TLS | TLS_GD; | |
| 8566 | break; | |
| 8567 | ||
| 8568 | case R_PPC64_GOT_TPREL16_DS: | |
| 8569 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8570 | case R_PPC64_GOT_TPREL16_HI: | |
| 8571 | case R_PPC64_GOT_TPREL16_HA: | |
| 8572 | if (ok_tprel) | |
| 8573 | { | |
| 8574 | /* IE -> LE */ | |
| 8575 | tls_set = 0; | |
| 8576 | tls_clear = TLS_TPREL; | |
| 8577 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8578 | break; | |
| 8579 | } | |
| 411e1bfb AM |
8580 | continue; |
| 8581 | ||
| 727fc41e AM |
8582 | case R_PPC64_TLSGD: |
| 8583 | case R_PPC64_TLSLD: | |
| 663a1470 | 8584 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8585 | /* Fall through. */ |
| 663a1470 AM |
8586 | |
| 8587 | case R_PPC64_TLS: | |
| 8588 | case R_PPC64_TOC16: | |
| 8589 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8590 | if (sym_sec == NULL || sym_sec != toc) |
| 8591 | continue; | |
| 8592 | ||
| 8593 | /* Mark this toc entry as referenced by a TLS | |
| 8594 | code sequence. We can do that now in the | |
| 8595 | case of R_PPC64_TLS, and after checking for | |
| 8596 | tls_get_addr for the TOC16 relocs. */ | |
| 8597 | if (toc_ref == NULL) | |
| 663a1470 AM |
8598 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8599 | if (toc_ref == NULL) | |
| 8600 | goto err_free_rel; | |
| 8601 | ||
| 102890f0 AM |
8602 | if (h != NULL) |
| 8603 | value = h->root.u.def.value; | |
| 8604 | else | |
| 8605 | value = sym->st_value; | |
| 8606 | value += rel->r_addend; | |
| 73242275 AM |
8607 | if (value % 8 != 0) |
| 8608 | continue; | |
| 8609 | BFD_ASSERT (value < toc->size | |
| 8610 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8611 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8612 | if (r_type == R_PPC64_TLS |
| 8613 | || r_type == R_PPC64_TLSGD | |
| 8614 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8615 | { |
| 8616 | toc_ref[toc_ref_index] = 1; | |
| 8617 | continue; | |
| 8618 | } | |
| 8619 | ||
| 8620 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8621 | continue; | |
| 8622 | ||
| 8623 | tls_set = 0; | |
| 8624 | tls_clear = 0; | |
| 8625 | expecting_tls_get_addr = 2; | |
| 8626 | break; | |
| 8627 | ||
| 8628 | case R_PPC64_TPREL64: | |
| 8629 | if (pass == 0 | |
| 8630 | || sec != toc | |
| 8631 | || toc_ref == NULL | |
| 663a1470 | 8632 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8633 | continue; |
| 8634 | if (ok_tprel) | |
| 8635 | { | |
| 8636 | /* IE -> LE */ | |
| 8637 | tls_set = TLS_EXPLICIT; | |
| 8638 | tls_clear = TLS_TPREL; | |
| 8639 | break; | |
| 8640 | } | |
| 8641 | continue; | |
| 8642 | ||
| 8643 | case R_PPC64_DTPMOD64: | |
| 8644 | if (pass == 0 | |
| 8645 | || sec != toc | |
| 8646 | || toc_ref == NULL | |
| 663a1470 | 8647 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8648 | continue; |
| 8649 | if (rel + 1 < relend | |
| 8650 | && (rel[1].r_info | |
| 8651 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8652 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8653 | { | |
| 8654 | if (ok_tprel) | |
| 8655 | /* GD -> LE */ | |
| 8656 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8657 | else | |
| 8658 | /* GD -> IE */ | |
| 8659 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8660 | tls_clear = TLS_GD; | |
| 8661 | } | |
| 8662 | else | |
| 8663 | { | |
| 8664 | if (!is_local) | |
| 8665 | continue; | |
| 8666 | ||
| 8667 | /* LD -> LE */ | |
| 8668 | tls_set = TLS_EXPLICIT; | |
| 8669 | tls_clear = TLS_LD; | |
| 8670 | } | |
| 8671 | break; | |
| 8672 | ||
| 8673 | default: | |
| 8674 | continue; | |
| 8675 | } | |
| 8676 | ||
| 8677 | if (pass == 0) | |
| 8678 | { | |
| 727fc41e AM |
8679 | if (!expecting_tls_get_addr |
| 8680 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8681 | continue; |
| 8682 | ||
| 3a71aa26 AM |
8683 | if (rel + 1 < relend |
| 8684 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8685 | htab->tls_get_addr, | |
| 8686 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8687 | { |
| 3a71aa26 | 8688 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8689 | { |
| 3a71aa26 | 8690 | /* Check for toc tls entries. */ |
| f961d9dd | 8691 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8692 | int retval; |
| 8693 | ||
| 8694 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8695 | &locsyms, | |
| 8696 | rel, ibfd); | |
| 8697 | if (retval == 0) | |
| 8698 | goto err_free_rel; | |
| 663a1470 AM |
8699 | if (toc_tls != NULL) |
| 8700 | { | |
| 8701 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8702 | found_tls_get_addr_arg = 1; | |
| 8703 | if (retval > 1) | |
| 8704 | toc_ref[toc_ref_index] = 1; | |
| 8705 | } | |
| 102890f0 | 8706 | } |
| 3a71aa26 | 8707 | continue; |
| 102890f0 AM |
8708 | } |
| 8709 | ||
| 8710 | if (expecting_tls_get_addr != 1) | |
| 8711 | continue; | |
| 8712 | ||
| 8713 | /* Uh oh, we didn't find the expected call. We | |
| 8714 | could just mark this symbol to exclude it | |
| 8715 | from tls optimization but it's safer to skip | |
| 663a1470 | 8716 | the entire optimization. */ |
| 695344c0 | 8717 | /* xgettext:c-format */ |
| 25f53a85 | 8718 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8719 | "TLS optimization disabled\n"), |
| 8720 | ibfd, sec, rel->r_offset); | |
| 8721 | ret = TRUE; | |
| 8722 | goto err_free_rel; | |
| 102890f0 AM |
8723 | } |
| 8724 | ||
| 85f7a9cb | 8725 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8726 | { |
| 8727 | struct plt_entry *ent; | |
| 8728 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8729 | ent != NULL; | |
| 8730 | ent = ent->next) | |
| 8731 | if (ent->addend == 0) | |
| 411e1bfb | 8732 | { |
| 102890f0 | 8733 | if (ent->plt.refcount > 0) |
| 30038c59 | 8734 | { |
| 102890f0 AM |
8735 | ent->plt.refcount -= 1; |
| 8736 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8737 | } |
| 102890f0 | 8738 | break; |
| 411e1bfb | 8739 | } |
| 102890f0 | 8740 | } |
| 411e1bfb | 8741 | |
| 85f7a9cb | 8742 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8743 | { |
| 8744 | struct plt_entry *ent; | |
| 8745 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8746 | ent != NULL; | |
| 8747 | ent = ent->next) | |
| 8748 | if (ent->addend == 0) | |
| 411e1bfb | 8749 | { |
| 102890f0 AM |
8750 | if (ent->plt.refcount > 0) |
| 8751 | ent->plt.refcount -= 1; | |
| 8752 | break; | |
| 411e1bfb | 8753 | } |
| 102890f0 | 8754 | } |
| 411e1bfb | 8755 | |
| 102890f0 | 8756 | if (tls_clear == 0) |
| 30038c59 AM |
8757 | continue; |
| 8758 | ||
| 102890f0 AM |
8759 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8760 | { | |
| 8761 | struct got_entry *ent; | |
| 411e1bfb | 8762 | |
| 102890f0 AM |
8763 | /* Adjust got entry for this reloc. */ |
| 8764 | if (h != NULL) | |
| 8765 | ent = h->got.glist; | |
| 8766 | else | |
| 8767 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8768 | |
| 102890f0 AM |
8769 | for (; ent != NULL; ent = ent->next) |
| 8770 | if (ent->addend == rel->r_addend | |
| 8771 | && ent->owner == ibfd | |
| 8772 | && ent->tls_type == tls_type) | |
| 8773 | break; | |
| 8774 | if (ent == NULL) | |
| 8775 | abort (); | |
| 411e1bfb | 8776 | |
| 102890f0 AM |
8777 | if (tls_set == 0) |
| 8778 | { | |
| 8779 | /* We managed to get rid of a got entry. */ | |
| 8780 | if (ent->got.refcount > 0) | |
| 8781 | ent->got.refcount -= 1; | |
| 8782 | } | |
| 8783 | } | |
| 8784 | else | |
| 8785 | { | |
| 8786 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8787 | we'll lose one or two dyn relocs. */ | |
| 8788 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8789 | NULL, h, sym)) |
| 102890f0 | 8790 | return FALSE; |
| 411e1bfb | 8791 | |
| 102890f0 AM |
8792 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8793 | { | |
| 8794 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8795 | NULL, h, sym)) |
| 102890f0 AM |
8796 | return FALSE; |
| 8797 | } | |
| 8798 | } | |
| 411e1bfb | 8799 | |
| 102890f0 AM |
8800 | *tls_mask |= tls_set; |
| 8801 | *tls_mask &= ~tls_clear; | |
| 8802 | } | |
| 8c1d1bb8 | 8803 | |
| 102890f0 AM |
8804 | if (elf_section_data (sec)->relocs != relstart) |
| 8805 | free (relstart); | |
| 8806 | } | |
| 411e1bfb | 8807 | |
| 663a1470 AM |
8808 | if (locsyms != NULL |
| 8809 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8810 | { | |
| 8811 | if (!info->keep_memory) | |
| 8812 | free (locsyms); | |
| 8813 | else | |
| 8814 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8815 | } | |
| 8816 | } | |
| 411e1bfb | 8817 | |
| 663a1470 AM |
8818 | if (toc_ref != NULL) |
| 8819 | free (toc_ref); | |
| b34976b6 | 8820 | return TRUE; |
| 1e2f5b6e | 8821 | } |
| b34976b6 | 8822 | |
| c5614fa4 AM |
8823 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8824 | the values of any global symbols in a toc section that has been | |
| 8825 | edited. Globals in toc sections should be a rarity, so this function | |
| 8826 | sets a flag if any are found in toc sections other than the one just | |
| 8827 | edited, so that futher hash table traversals can be avoided. */ | |
| 8828 | ||
| 8829 | struct adjust_toc_info | |
| 8830 | { | |
| 8831 | asection *toc; | |
| 8832 | unsigned long *skip; | |
| 8833 | bfd_boolean global_toc_syms; | |
| 8834 | }; | |
| 8835 | ||
| ba761f19 AM |
8836 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8837 | ||
| c5614fa4 AM |
8838 | static bfd_boolean |
| 8839 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8840 | { | |
| 8841 | struct ppc_link_hash_entry *eh; | |
| 8842 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8843 | unsigned long i; |
| c5614fa4 | 8844 | |
| c5614fa4 AM |
8845 | if (h->root.type != bfd_link_hash_defined |
| 8846 | && h->root.type != bfd_link_hash_defweak) | |
| 8847 | return TRUE; | |
| 8848 | ||
| 8849 | eh = (struct ppc_link_hash_entry *) h; | |
| 8850 | if (eh->adjust_done) | |
| 8851 | return TRUE; | |
| 8852 | ||
| 8853 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8854 | { | |
| 854b41e7 AM |
8855 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8856 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8857 | else |
| 854b41e7 AM |
8858 | i = eh->elf.root.u.def.value >> 3; |
| 8859 | ||
| ba761f19 | 8860 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8861 | { |
| 4eca0228 | 8862 | _bfd_error_handler |
| 854b41e7 AM |
8863 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8864 | do | |
| 8865 | ++i; | |
| ba761f19 | 8866 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8867 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8868 | } |
| 854b41e7 AM |
8869 | |
| 8870 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8871 | eh->adjust_done = 1; |
| 8872 | } | |
| 8873 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8874 | toc_inf->global_toc_syms = TRUE; | |
| 8875 | ||
| 8876 | return TRUE; | |
| 8877 | } | |
| 8878 | ||
| 560c8763 AM |
8879 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8880 | ||
| 8881 | static bfd_boolean | |
| 8882 | ok_lo_toc_insn (unsigned int insn) | |
| 8883 | { | |
| 8884 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8885 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8886 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8887 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8888 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8889 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8890 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8891 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8892 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8893 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8894 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8895 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8896 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8897 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8898 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8899 | && (insn & 3) != 1) | |
| 8900 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8901 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8902 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8903 | } | |
| 8904 | ||
| c5614fa4 AM |
8905 | /* Examine all relocs referencing .toc sections in order to remove |
| 8906 | unused .toc entries. */ | |
| 8907 | ||
| 8908 | bfd_boolean | |
| 33c0ec9d | 8909 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8910 | { |
| 8911 | bfd *ibfd; | |
| 8912 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8913 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8914 | |
| 67f0cbdb | 8915 | htab->do_toc_opt = 1; |
| c5614fa4 | 8916 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8917 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8918 | { |
| 8919 | asection *toc, *sec; | |
| 8920 | Elf_Internal_Shdr *symtab_hdr; | |
| 8921 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8922 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8923 | unsigned long *skip, *drop; |
| 8924 | unsigned char *used; | |
| 8925 | unsigned char *keep, last, some_unused; | |
| 8926 | ||
| 854b41e7 AM |
8927 | if (!is_ppc64_elf (ibfd)) |
| 8928 | continue; | |
| 8929 | ||
| c5614fa4 AM |
8930 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8931 | if (toc == NULL | |
| 92b7a70f | 8932 | || toc->size == 0 |
| dbaa2011 AM |
8933 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8934 | || discarded_section (toc)) | |
| c5614fa4 AM |
8935 | continue; |
| 8936 | ||
| 425b145b | 8937 | toc_relocs = NULL; |
| c5614fa4 | 8938 | local_syms = NULL; |
| 0ffa91dd | 8939 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8940 | |
| 8941 | /* Look at sections dropped from the final link. */ | |
| 8942 | skip = NULL; | |
| 8943 | relstart = NULL; | |
| 8944 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8945 | { | |
| 8946 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8947 | || !discarded_section (sec) |
| c5614fa4 AM |
8948 | || get_opd_info (sec) |
| 8949 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8950 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8951 | continue; | |
| 8952 | ||
| 8953 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8954 | if (relstart == NULL) | |
| 8955 | goto error_ret; | |
| 8956 | ||
| 8957 | /* Run through the relocs to see which toc entries might be | |
| 8958 | unused. */ | |
| 8959 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8960 | { | |
| 8961 | enum elf_ppc64_reloc_type r_type; | |
| 8962 | unsigned long r_symndx; | |
| 8963 | asection *sym_sec; | |
| 8964 | struct elf_link_hash_entry *h; | |
| 8965 | Elf_Internal_Sym *sym; | |
| 8966 | bfd_vma val; | |
| 8967 | ||
| 8968 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8969 | switch (r_type) | |
| 8970 | { | |
| 8971 | default: | |
| 8972 | continue; | |
| 8973 | ||
| 8974 | case R_PPC64_TOC16: | |
| 8975 | case R_PPC64_TOC16_LO: | |
| 8976 | case R_PPC64_TOC16_HI: | |
| 8977 | case R_PPC64_TOC16_HA: | |
| 8978 | case R_PPC64_TOC16_DS: | |
| 8979 | case R_PPC64_TOC16_LO_DS: | |
| 8980 | break; | |
| 8981 | } | |
| 8982 | ||
| 8983 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8984 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8985 | r_symndx, ibfd)) | |
| 8986 | goto error_ret; | |
| 8987 | ||
| 8988 | if (sym_sec != toc) | |
| 8989 | continue; | |
| 8990 | ||
| 8991 | if (h != NULL) | |
| 8992 | val = h->root.u.def.value; | |
| 8993 | else | |
| 8994 | val = sym->st_value; | |
| 8995 | val += rel->r_addend; | |
| 8996 | ||
| 8997 | if (val >= toc->size) | |
| 8998 | continue; | |
| 8999 | ||
| 9000 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 9001 | If not, don't mark as unused. */ | |
| 9002 | if (val & 7) | |
| 9003 | continue; | |
| 9004 | ||
| 9005 | if (skip == NULL) | |
| 9006 | { | |
| 854b41e7 | 9007 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
9008 | if (skip == NULL) |
| 9009 | goto error_ret; | |
| 9010 | } | |
| 9011 | ||
| ba761f19 | 9012 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
9013 | } |
| 9014 | ||
| 9015 | if (elf_section_data (sec)->relocs != relstart) | |
| 9016 | free (relstart); | |
| 9017 | } | |
| 9018 | ||
| ba761f19 AM |
9019 | /* For largetoc loads of address constants, we can convert |
| 9020 | . addis rx,2,addr@got@ha | |
| 9021 | . ld ry,addr@got@l(rx) | |
| 9022 | to | |
| 9023 | . addis rx,2,addr@toc@ha | |
| 9024 | . addi ry,rx,addr@toc@l | |
| 9025 | when addr is within 2G of the toc pointer. This then means | |
| 9026 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9027 | |
| ba761f19 AM |
9028 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9029 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9030 | && toc->reloc_count != 0) | |
| 9031 | { | |
| 9032 | /* Read toc relocs. */ | |
| 425b145b AM |
9033 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9034 | info->keep_memory); | |
| 9035 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9036 | goto error_ret; |
| 9037 | ||
| 425b145b | 9038 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9039 | { |
| 9040 | enum elf_ppc64_reloc_type r_type; | |
| 9041 | unsigned long r_symndx; | |
| 9042 | asection *sym_sec; | |
| 9043 | struct elf_link_hash_entry *h; | |
| 9044 | Elf_Internal_Sym *sym; | |
| 9045 | bfd_vma val, addr; | |
| 9046 | ||
| 9047 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9048 | if (r_type != R_PPC64_ADDR64) | |
| 9049 | continue; | |
| 9050 | ||
| 9051 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9052 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9053 | r_symndx, ibfd)) | |
| 9054 | goto error_ret; | |
| 9055 | ||
| 425b145b | 9056 | if (sym_sec == NULL |
| c27b8c2a | 9057 | || sym_sec->output_section == NULL |
| dbaa2011 | 9058 | || discarded_section (sym_sec)) |
| 425b145b AM |
9059 | continue; |
| 9060 | ||
| afe397ea | 9061 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9062 | continue; |
| 9063 | ||
| 9064 | if (h != NULL) | |
| bddc25c9 AM |
9065 | { |
| 9066 | if (h->type == STT_GNU_IFUNC) | |
| 9067 | continue; | |
| 9068 | val = h->root.u.def.value; | |
| 9069 | } | |
| ba761f19 | 9070 | else |
| bddc25c9 AM |
9071 | { |
| 9072 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9073 | continue; | |
| 9074 | val = sym->st_value; | |
| 9075 | } | |
| ba761f19 AM |
9076 | val += rel->r_addend; |
| 9077 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9078 | ||
| 9079 | /* We don't yet know the exact toc pointer value, but we | |
| 9080 | know it will be somewhere in the toc section. Don't | |
| 9081 | optimize if the difference from any possible toc | |
| 9082 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9083 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9084 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9085 | continue; | |
| 9086 | ||
| 9087 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9088 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9089 | continue; | |
| 9090 | ||
| 9091 | if (skip == NULL) | |
| 9092 | { | |
| 9093 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9094 | if (skip == NULL) | |
| 9095 | goto error_ret; | |
| 9096 | } | |
| 9097 | ||
| 9098 | skip[rel->r_offset >> 3] | |
| 425b145b | 9099 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9100 | } |
| ba761f19 AM |
9101 | } |
| 9102 | ||
| c5614fa4 AM |
9103 | if (skip == NULL) |
| 9104 | continue; | |
| 9105 | ||
| 9106 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9107 | if (used == NULL) | |
| 9108 | { | |
| 9109 | error_ret: | |
| 9110 | if (local_syms != NULL | |
| 9111 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9112 | free (local_syms); | |
| 9113 | if (sec != NULL | |
| 9114 | && relstart != NULL | |
| 9115 | && elf_section_data (sec)->relocs != relstart) | |
| 9116 | free (relstart); | |
| 425b145b AM |
9117 | if (toc_relocs != NULL |
| 9118 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9119 | free (toc_relocs); | |
| c5614fa4 AM |
9120 | if (skip != NULL) |
| 9121 | free (skip); | |
| 9122 | return FALSE; | |
| 9123 | } | |
| 9124 | ||
| 30038c59 AM |
9125 | /* Now check all kept sections that might reference the toc. |
| 9126 | Check the toc itself last. */ | |
| 9127 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9128 | : ibfd->sections); | |
| c5614fa4 | 9129 | sec != NULL; |
| c5614fa4 | 9130 | sec = (sec == toc ? NULL |
| c5614fa4 | 9131 | : sec->next == NULL ? toc |
| 30038c59 | 9132 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9133 | : sec->next)) |
| 9134 | { | |
| 9135 | int repeat; | |
| 9136 | ||
| 9137 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9138 | || discarded_section (sec) |
| c5614fa4 AM |
9139 | || get_opd_info (sec) |
| 9140 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9141 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9142 | continue; | |
| 9143 | ||
| 854b41e7 AM |
9144 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9145 | info->keep_memory); | |
| c5614fa4 | 9146 | if (relstart == NULL) |
| 2915c55b JK |
9147 | { |
| 9148 | free (used); | |
| 9149 | goto error_ret; | |
| 9150 | } | |
| c5614fa4 AM |
9151 | |
| 9152 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9153 | do |
| d4f1ee75 AM |
9154 | { |
| 9155 | repeat = 0; | |
| 9156 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9157 | { | |
| 9158 | enum elf_ppc64_reloc_type r_type; | |
| 9159 | unsigned long r_symndx; | |
| 9160 | asection *sym_sec; | |
| 9161 | struct elf_link_hash_entry *h; | |
| 9162 | Elf_Internal_Sym *sym; | |
| 9163 | bfd_vma val; | |
| 9164 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9165 | |
| d4f1ee75 AM |
9166 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9167 | switch (r_type) | |
| 9168 | { | |
| 9169 | default: | |
| 9170 | insn_check = no_check; | |
| 9171 | break; | |
| 98528052 | 9172 | |
| d4f1ee75 AM |
9173 | case R_PPC64_GOT_TLSLD16_HA: |
| 9174 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9175 | case R_PPC64_GOT_TPREL16_HA: | |
| 9176 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9177 | case R_PPC64_GOT16_HA: | |
| 9178 | case R_PPC64_TOC16_HA: | |
| 9179 | insn_check = check_ha; | |
| 9180 | break; | |
| 98528052 | 9181 | |
| d4f1ee75 AM |
9182 | case R_PPC64_GOT_TLSLD16_LO: |
| 9183 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9184 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9185 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9186 | case R_PPC64_GOT16_LO: | |
| 9187 | case R_PPC64_GOT16_LO_DS: | |
| 9188 | case R_PPC64_TOC16_LO: | |
| 9189 | case R_PPC64_TOC16_LO_DS: | |
| 9190 | insn_check = check_lo; | |
| 9191 | break; | |
| 9192 | } | |
| 560c8763 | 9193 | |
| d4f1ee75 AM |
9194 | if (insn_check != no_check) |
| 9195 | { | |
| 9196 | bfd_vma off = rel->r_offset & ~3; | |
| 9197 | unsigned char buf[4]; | |
| 9198 | unsigned int insn; | |
| c5614fa4 | 9199 | |
| d4f1ee75 AM |
9200 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9201 | { | |
| 9202 | free (used); | |
| 9203 | goto error_ret; | |
| 9204 | } | |
| 9205 | insn = bfd_get_32 (ibfd, buf); | |
| 9206 | if (insn_check == check_lo | |
| 9207 | ? !ok_lo_toc_insn (insn) | |
| 9208 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 9209 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9210 | { | |
| 9211 | char str[12]; | |
| 9212 | ||
| 9213 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9214 | sprintf (str, "%#08x", insn); | |
| 9215 | info->callbacks->einfo | |
| 695344c0 | 9216 | /* xgettext:c-format */ |
| d4f1ee75 AM |
9217 | (_("%P: %H: toc optimization is not supported for" |
| 9218 | " %s instruction.\n"), | |
| 9219 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9220 | } | |
| 9221 | } | |
| c5614fa4 | 9222 | |
| d4f1ee75 AM |
9223 | switch (r_type) |
| 9224 | { | |
| 9225 | case R_PPC64_TOC16: | |
| 9226 | case R_PPC64_TOC16_LO: | |
| 9227 | case R_PPC64_TOC16_HI: | |
| 9228 | case R_PPC64_TOC16_HA: | |
| 9229 | case R_PPC64_TOC16_DS: | |
| 9230 | case R_PPC64_TOC16_LO_DS: | |
| 9231 | /* In case we're taking addresses of toc entries. */ | |
| 9232 | case R_PPC64_ADDR64: | |
| 9233 | break; | |
| c5614fa4 | 9234 | |
| d4f1ee75 AM |
9235 | default: |
| 9236 | continue; | |
| 9237 | } | |
| c5614fa4 | 9238 | |
| d4f1ee75 AM |
9239 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9240 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9241 | r_symndx, ibfd)) | |
| 9242 | { | |
| 9243 | free (used); | |
| 9244 | goto error_ret; | |
| 9245 | } | |
| c5614fa4 | 9246 | |
| d4f1ee75 AM |
9247 | if (sym_sec != toc) |
| 9248 | continue; | |
| c5614fa4 | 9249 | |
| d4f1ee75 AM |
9250 | if (h != NULL) |
| 9251 | val = h->root.u.def.value; | |
| 9252 | else | |
| 9253 | val = sym->st_value; | |
| 9254 | val += rel->r_addend; | |
| ba761f19 | 9255 | |
| d4f1ee75 AM |
9256 | if (val >= toc->size) |
| 9257 | continue; | |
| ba761f19 | 9258 | |
| d4f1ee75 AM |
9259 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9260 | { | |
| 9261 | bfd_vma off; | |
| 9262 | unsigned char opc; | |
| 9263 | ||
| 9264 | switch (r_type) | |
| 9265 | { | |
| 9266 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9267 | break; |
| ba761f19 | 9268 | |
| d4f1ee75 AM |
9269 | case R_PPC64_TOC16_LO_DS: |
| 9270 | off = rel->r_offset; | |
| 9271 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9272 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9273 | off, 1)) | |
| 9274 | { | |
| 9275 | free (used); | |
| 9276 | goto error_ret; | |
| 9277 | } | |
| 9278 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9279 | break; | |
| 1a0670f3 | 9280 | /* Fall through. */ |
| ba761f19 | 9281 | |
| d4f1ee75 AM |
9282 | default: |
| 9283 | /* Wrong sort of reloc, or not a ld. We may | |
| 9284 | as well clear ref_from_discarded too. */ | |
| 9285 | skip[val >> 3] = 0; | |
| 9286 | } | |
| 9287 | } | |
| 9288 | ||
| 9289 | if (sec != toc) | |
| 9290 | used[val >> 3] = 1; | |
| 9291 | /* For the toc section, we only mark as used if this | |
| 9292 | entry itself isn't unused. */ | |
| 9293 | else if ((used[rel->r_offset >> 3] | |
| 9294 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9295 | && !used[val >> 3]) | |
| 9296 | { | |
| 9297 | /* Do all the relocs again, to catch reference | |
| 9298 | chains. */ | |
| 9299 | repeat = 1; | |
| 9300 | used[val >> 3] = 1; | |
| 9301 | } | |
| 9302 | } | |
| 9303 | } | |
| c5614fa4 | 9304 | while (repeat); |
| 854b41e7 AM |
9305 | |
| 9306 | if (elf_section_data (sec)->relocs != relstart) | |
| 9307 | free (relstart); | |
| c5614fa4 AM |
9308 | } |
| 9309 | ||
| 9310 | /* Merge the used and skip arrays. Assume that TOC | |
| 9311 | doublewords not appearing as either used or unused belong | |
| 9312 | to to an entry more than one doubleword in size. */ | |
| 9313 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9314 | drop < skip + (toc->size + 7) / 8; | |
| 9315 | ++drop, ++keep) | |
| 9316 | { | |
| 9317 | if (*keep) | |
| 9318 | { | |
| ba761f19 AM |
9319 | *drop &= ~ref_from_discarded; |
| 9320 | if ((*drop & can_optimize) != 0) | |
| 9321 | some_unused = 1; | |
| c5614fa4 AM |
9322 | last = 0; |
| 9323 | } | |
| b140b010 | 9324 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9325 | { |
| 9326 | some_unused = 1; | |
| ba761f19 | 9327 | last = ref_from_discarded; |
| c5614fa4 AM |
9328 | } |
| 9329 | else | |
| 9330 | *drop = last; | |
| 9331 | } | |
| 9332 | ||
| 9333 | free (used); | |
| 9334 | ||
| 9335 | if (some_unused) | |
| 9336 | { | |
| 9337 | bfd_byte *contents, *src; | |
| 9338 | unsigned long off; | |
| d62b3684 | 9339 | Elf_Internal_Sym *sym; |
| ba761f19 | 9340 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9341 | |
| 9342 | /* Shuffle the toc contents, and at the same time convert the | |
| 9343 | skip array from booleans into offsets. */ | |
| 9344 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9345 | goto error_ret; | |
| 9346 | ||
| 9347 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9348 | ||
| 9349 | for (src = contents, off = 0, drop = skip; | |
| 9350 | src < contents + toc->size; | |
| 9351 | src += 8, ++drop) | |
| 9352 | { | |
| ba761f19 AM |
9353 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9354 | off += 8; | |
| c5614fa4 AM |
9355 | else if (off != 0) |
| 9356 | { | |
| 9357 | *drop = off; | |
| 9358 | memcpy (src - off, src, 8); | |
| 9359 | } | |
| 9360 | } | |
| 854b41e7 | 9361 | *drop = off; |
| c5614fa4 AM |
9362 | toc->rawsize = toc->size; |
| 9363 | toc->size = src - contents - off; | |
| 9364 | ||
| ba761f19 AM |
9365 | /* Adjust addends for relocs against the toc section sym, |
| 9366 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9367 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9368 | { | |
| 9369 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9370 | || discarded_section (sec)) |
| c5614fa4 AM |
9371 | continue; |
| 9372 | ||
| 9373 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9374 | info->keep_memory); |
| c5614fa4 AM |
9375 | if (relstart == NULL) |
| 9376 | goto error_ret; | |
| 9377 | ||
| 9378 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9379 | { | |
| 9380 | enum elf_ppc64_reloc_type r_type; | |
| 9381 | unsigned long r_symndx; | |
| 9382 | asection *sym_sec; | |
| 9383 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9384 | bfd_vma val; |
| c5614fa4 AM |
9385 | |
| 9386 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9387 | switch (r_type) | |
| 9388 | { | |
| 9389 | default: | |
| 9390 | continue; | |
| 9391 | ||
| 9392 | case R_PPC64_TOC16: | |
| 9393 | case R_PPC64_TOC16_LO: | |
| 9394 | case R_PPC64_TOC16_HI: | |
| 9395 | case R_PPC64_TOC16_HA: | |
| 9396 | case R_PPC64_TOC16_DS: | |
| 9397 | case R_PPC64_TOC16_LO_DS: | |
| 9398 | case R_PPC64_ADDR64: | |
| 9399 | break; | |
| 9400 | } | |
| 9401 | ||
| 9402 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9403 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9404 | r_symndx, ibfd)) | |
| 9405 | goto error_ret; | |
| 9406 | ||
| ba761f19 | 9407 | if (sym_sec != toc) |
| c5614fa4 AM |
9408 | continue; |
| 9409 | ||
| ba761f19 AM |
9410 | if (h != NULL) |
| 9411 | val = h->root.u.def.value; | |
| 9412 | else | |
| 9413 | { | |
| 9414 | val = sym->st_value; | |
| 9415 | if (val != 0) | |
| 9416 | local_toc_syms = TRUE; | |
| 9417 | } | |
| 9418 | ||
| 9419 | val += rel->r_addend; | |
| 854b41e7 AM |
9420 | |
| 9421 | if (val > toc->rawsize) | |
| 9422 | val = toc->rawsize; | |
| ba761f19 AM |
9423 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9424 | continue; | |
| 9425 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9426 | { | |
| 9427 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9428 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9429 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9430 | ||
| 9431 | switch (r_type) | |
| 9432 | { | |
| 9433 | case R_PPC64_TOC16_HA: | |
| 9434 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9435 | break; | |
| 9436 | ||
| 9437 | case R_PPC64_TOC16_LO_DS: | |
| 9438 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9439 | break; | |
| 9440 | ||
| 9441 | default: | |
| 28942f62 AM |
9442 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9443 | ppc_howto_init (); | |
| b140b010 | 9444 | info->callbacks->einfo |
| 695344c0 | 9445 | /* xgettext:c-format */ |
| bc30df16 | 9446 | (_("%P: %H: %s references " |
| b140b010 AM |
9447 | "optimized away TOC entry\n"), |
| 9448 | ibfd, sec, rel->r_offset, | |
| 9449 | ppc64_elf_howto_table[r_type]->name); | |
| 9450 | bfd_set_error (bfd_error_bad_value); | |
| 9451 | goto error_ret; | |
| ba761f19 AM |
9452 | } |
| 9453 | rel->r_addend = tocrel->r_addend; | |
| 9454 | elf_section_data (sec)->relocs = relstart; | |
| 9455 | continue; | |
| 9456 | } | |
| 9457 | ||
| 9458 | if (h != NULL || sym->st_value != 0) | |
| 9459 | continue; | |
| 854b41e7 AM |
9460 | |
| 9461 | rel->r_addend -= skip[val >> 3]; | |
| 9462 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9463 | } |
| 854b41e7 AM |
9464 | |
| 9465 | if (elf_section_data (sec)->relocs != relstart) | |
| 9466 | free (relstart); | |
| c5614fa4 AM |
9467 | } |
| 9468 | ||
| 9469 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9470 | but handle them anyway. */ | |
| df22d223 AM |
9471 | if (local_syms != NULL) |
| 9472 | for (sym = local_syms; | |
| 9473 | sym < local_syms + symtab_hdr->sh_info; | |
| 9474 | ++sym) | |
| 9475 | if (sym->st_value != 0 | |
| 9476 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9477 | { | |
| 9478 | unsigned long i; | |
| 854b41e7 | 9479 | |
| df22d223 AM |
9480 | if (sym->st_value > toc->rawsize) |
| 9481 | i = toc->rawsize >> 3; | |
| 9482 | else | |
| 9483 | i = sym->st_value >> 3; | |
| 854b41e7 | 9484 | |
| df22d223 AM |
9485 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9486 | { | |
| 9487 | if (local_toc_syms) | |
| 4eca0228 | 9488 | _bfd_error_handler |
| df22d223 AM |
9489 | (_("%s defined on removed toc entry"), |
| 9490 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9491 | do | |
| 9492 | ++i; | |
| 9493 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9494 | sym->st_value = (bfd_vma) i << 3; | |
| 9495 | } | |
| d62b3684 | 9496 | |
| df22d223 AM |
9497 | sym->st_value -= skip[i]; |
| 9498 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9499 | } | |
| c5614fa4 | 9500 | |
| 854b41e7 | 9501 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9502 | if (toc_inf.global_toc_syms) |
| 9503 | { | |
| 9504 | toc_inf.toc = toc; | |
| 9505 | toc_inf.skip = skip; | |
| 9506 | toc_inf.global_toc_syms = FALSE; | |
| 9507 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9508 | &toc_inf); | |
| 9509 | } | |
| 854b41e7 AM |
9510 | |
| 9511 | if (toc->reloc_count != 0) | |
| 9512 | { | |
| d4730f92 | 9513 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9514 | Elf_Internal_Rela *wrel; |
| 9515 | bfd_size_type sz; | |
| 9516 | ||
| 854b41e7 | 9517 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9518 | if (toc_relocs == NULL) |
| 9519 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9520 | info->keep_memory); | |
| 9521 | if (toc_relocs == NULL) | |
| 9522 | goto error_ret; | |
| 9523 | ||
| 425b145b AM |
9524 | wrel = toc_relocs; |
| 9525 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9526 | if ((skip[rel->r_offset >> 3] |
| 9527 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9528 | { |
| 9529 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9530 | wrel->r_info = rel->r_info; | |
| 9531 | wrel->r_addend = rel->r_addend; | |
| 9532 | ++wrel; | |
| 9533 | } | |
| 9534 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9535 | &local_syms, NULL, NULL)) | |
| 9536 | goto error_ret; | |
| 9537 | ||
| 425b145b AM |
9538 | elf_section_data (toc)->relocs = toc_relocs; |
| 9539 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9540 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9541 | sz = rel_hdr->sh_entsize; | |
| 9542 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9543 | } |
| c5614fa4 | 9544 | } |
| 28be611c AM |
9545 | else if (toc_relocs != NULL |
| 9546 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9547 | free (toc_relocs); |
| c5614fa4 AM |
9548 | |
| 9549 | if (local_syms != NULL | |
| 9550 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9551 | { | |
| 9552 | if (!info->keep_memory) | |
| 9553 | free (local_syms); | |
| 9554 | else | |
| 9555 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9556 | } | |
| 9557 | free (skip); | |
| 9558 | } | |
| 9559 | ||
| 9560 | return TRUE; | |
| 9561 | } | |
| 9562 | ||
| 1bbe0902 AM |
9563 | /* Return true iff input section I references the TOC using |
| 9564 | instructions limited to +/-32k offsets. */ | |
| 9565 | ||
| 9566 | bfd_boolean | |
| 9567 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9568 | { | |
| 9569 | return (is_ppc64_elf (i->owner) | |
| 9570 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9571 | } | |
| 9572 | ||
| 927be08e AM |
9573 | /* Allocate space for one GOT entry. */ |
| 9574 | ||
| 9575 | static void | |
| 9576 | allocate_got (struct elf_link_hash_entry *h, | |
| 9577 | struct bfd_link_info *info, | |
| 9578 | struct got_entry *gent) | |
| 9579 | { | |
| 9580 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9581 | bfd_boolean dyn; | |
| 9582 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9583 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9584 | ? 16 : 8); | |
| 9585 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9586 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9587 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9588 | ||
| 9589 | gent->got.offset = got->size; | |
| 9590 | got->size += entsize; | |
| 9591 | ||
| 9592 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9593 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9594 | { |
| 33e44f2e | 9595 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9596 | htab->got_reli_size += rentsize; |
| 927be08e | 9597 | } |
| 0e1862bb | 9598 | else if ((bfd_link_pic (info) |
| 19e08130 AM |
9599 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 9600 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9601 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9602 | { |
| 19e08130 | 9603 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9604 | relgot->size += rentsize; |
| 927be08e AM |
9605 | } |
| 9606 | } | |
| 9607 | ||
| 7865406b AM |
9608 | /* This function merges got entries in the same toc group. */ |
| 9609 | ||
| 9610 | static void | |
| 9611 | merge_got_entries (struct got_entry **pent) | |
| 9612 | { | |
| 9613 | struct got_entry *ent, *ent2; | |
| 9614 | ||
| 9615 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9616 | if (!ent->is_indirect) | |
| 9617 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9618 | if (!ent2->is_indirect | |
| 9619 | && ent2->addend == ent->addend | |
| 9620 | && ent2->tls_type == ent->tls_type | |
| 9621 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9622 | { | |
| 9623 | ent2->is_indirect = TRUE; | |
| 9624 | ent2->got.ent = ent; | |
| 9625 | } | |
| 9626 | } | |
| 9627 | ||
| 65f38f15 AM |
9628 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9629 | dynamic relocs. */ | |
| 5bd4f169 | 9630 | |
| b34976b6 | 9631 | static bfd_boolean |
| 4ce794b7 | 9632 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9633 | { |
| 65f38f15 AM |
9634 | struct bfd_link_info *info; |
| 9635 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9636 | asection *s; |
| 65f38f15 | 9637 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9638 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9639 | |
| e92d460e | 9640 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9641 | return TRUE; |
| 5bd4f169 | 9642 | |
| 65f38f15 AM |
9643 | info = (struct bfd_link_info *) inf; |
| 9644 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9645 | if (htab == NULL) |
| 9646 | return FALSE; | |
| 5bd4f169 | 9647 | |
| 951fd09b AM |
9648 | eh = (struct ppc_link_hash_entry *) h; |
| 9649 | /* Run through the TLS GD got entries first if we're changing them | |
| 9650 | to TPREL. */ | |
| e7b938ca | 9651 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9652 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9653 | if (gent->got.refcount > 0 | |
| 9654 | && (gent->tls_type & TLS_GD) != 0) | |
| 9655 | { | |
| 9656 | /* This was a GD entry that has been converted to TPREL. If | |
| 9657 | there happens to be a TPREL entry we can use that one. */ | |
| 9658 | struct got_entry *ent; | |
| 9659 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9660 | if (ent->got.refcount > 0 | |
| 9661 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9662 | && ent->addend == gent->addend |
| 9663 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9664 | { |
| 9665 | gent->got.refcount = 0; | |
| 9666 | break; | |
| 9667 | } | |
| 9668 | ||
| 9669 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9670 | if (gent->got.refcount != 0) | |
| 9671 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9672 | } | |
| 9673 | ||
| 7865406b AM |
9674 | /* Remove any list entry that won't generate a word in the GOT before |
| 9675 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9676 | entries. */ | |
| 0b8bcf0d AM |
9677 | pgent = &h->got.glist; |
| 9678 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9679 | if (gent->got.refcount > 0) |
| 7865406b AM |
9680 | { |
| 9681 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9682 | && !h->def_dynamic) | |
| 9683 | { | |
| 9684 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9685 | *pgent = gent->next; | |
| 9686 | } | |
| 9687 | else | |
| 9688 | pgent = &gent->next; | |
| 9689 | } | |
| 9690 | else | |
| 9691 | *pgent = gent->next; | |
| 9692 | ||
| 9693 | if (!htab->do_multi_toc) | |
| 9694 | merge_got_entries (&h->got.glist); | |
| 9695 | ||
| 9696 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9697 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9698 | { |
| 9699 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9700 | Undefined weak syms won't yet be marked as dynamic, |
| 9701 | nor will all TLS symbols. */ | |
| 411e1bfb | 9702 | if (h->dynindx == -1 |
| b099ab9f | 9703 | && !h->forced_local |
| 25f23106 | 9704 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9705 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9706 | { |
| c152c796 | 9707 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9708 | return FALSE; |
| 9709 | } | |
| 65f38f15 | 9710 | |
| 0c8d6e5c | 9711 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9712 | abort (); |
| 0ffa91dd | 9713 | |
| 927be08e | 9714 | allocate_got (h, info, gent); |
| 411e1bfb | 9715 | } |
| 65f38f15 | 9716 | |
| 8a2058b5 AM |
9717 | if (!htab->elf.dynamic_sections_created |
| 9718 | && h->type != STT_GNU_IFUNC) | |
| 9719 | eh->dyn_relocs = NULL; | |
| 9720 | ||
| 9721 | if (eh->dyn_relocs != NULL) | |
| 65f38f15 | 9722 | { |
| 8a2058b5 AM |
9723 | struct elf_dyn_relocs *p, **pp; |
| 9724 | ||
| 57e7d118 AM |
9725 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9726 | dynamic pc-relative relocs against symbols which turn out to | |
| 9727 | be defined in regular objects. For the normal shared case, | |
| 9728 | discard space for relocs that have become local due to symbol | |
| 9729 | visibility changes. */ | |
| 9730 | ||
| 9731 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9732 | { |
| 57e7d118 AM |
9733 | /* Relocs that use pc_count are those that appear on a call |
| 9734 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9735 | can be generated via assembly. We want calls to | |
| 9736 | protected symbols to resolve directly to the function | |
| 9737 | rather than going via the plt. If people want function | |
| 9738 | pointer comparisons to work as expected then they should | |
| 9739 | avoid writing weird assembly. */ | |
| 9740 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9741 | { | |
| 57e7d118 AM |
9742 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9743 | { | |
| 9744 | p->count -= p->pc_count; | |
| 9745 | p->pc_count = 0; | |
| 9746 | if (p->count == 0) | |
| 9747 | *pp = p->next; | |
| 9748 | else | |
| 9749 | pp = &p->next; | |
| 9750 | } | |
| 9751 | } | |
| 65f38f15 | 9752 | |
| 57e7d118 AM |
9753 | /* Also discard relocs on undefined weak syms with |
| 9754 | non-default visibility. */ | |
| 9755 | if (eh->dyn_relocs != NULL | |
| 9756 | && h->root.type == bfd_link_hash_undefweak) | |
| 5bd4f169 | 9757 | { |
| 57e7d118 AM |
9758 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9759 | eh->dyn_relocs = NULL; | |
| 9760 | ||
| 9761 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9762 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9763 | else if (h->dynindx == -1 | |
| 9764 | && !h->forced_local) | |
| 9765 | { | |
| 9766 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9767 | return FALSE; | |
| 9768 | } | |
| 5bd4f169 | 9769 | } |
| 65f38f15 | 9770 | } |
| 57e7d118 | 9771 | else if (h->type == STT_GNU_IFUNC) |
| dfbb6ac9 | 9772 | { |
| 8a2058b5 AM |
9773 | /* A plt entry is always created when making direct calls to |
| 9774 | an ifunc, even when building a static executable, but | |
| 9775 | that doesn't cover all cases. We may have only an ifunc | |
| 9776 | initialised function pointer for a given ifunc symbol. | |
| 9777 | ||
| 9778 | For ELFv2, dynamic relocations are not required when | |
| 9779 | generating a global entry PLT stub. */ | |
| 9780 | if (abiversion (info->output_bfd) >= 2) | |
| 9781 | { | |
| 9782 | if (global_entry_stub (h)) | |
| 9783 | eh->dyn_relocs = NULL; | |
| 9784 | } | |
| 9785 | ||
| 9786 | /* For ELFv1 we have function descriptors. Descriptors need | |
| 9787 | to be treated like PLT entries and thus have dynamic | |
| 9788 | relocations. One exception is when the function | |
| 9789 | descriptor is copied into .dynbss (which should only | |
| 9790 | happen with ancient versions of gcc). */ | |
| 9791 | else if (h->needs_copy) | |
| dfbb6ac9 | 9792 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9793 | } |
| 9794 | else if (ELIMINATE_COPY_RELOCS) | |
| 9795 | { | |
| 8a2058b5 | 9796 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9797 | symbols which turn out to need copy relocs or are not |
| 9798 | dynamic. */ | |
| dfbb6ac9 | 9799 | |
| 8a2058b5 AM |
9800 | /* First make sure this symbol is output as a dynamic symbol. |
| 9801 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9802 | if (h->root.type == bfd_link_hash_undefweak | |
| 9803 | && !h->non_got_ref | |
| 9804 | && !h->def_regular | |
| 9805 | && h->dynindx == -1 | |
| 9806 | && !h->forced_local | |
| 9807 | && !bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9808 | return FALSE; | |
| 57e7d118 | 9809 | |
| 8a2058b5 AM |
9810 | if (h->non_got_ref |
| 9811 | || h->def_regular | |
| 9812 | || h->dynindx == -1) | |
| 9813 | eh->dyn_relocs = NULL; | |
| 57e7d118 AM |
9814 | } |
| 9815 | ||
| 9816 | /* Finally, allocate space. */ | |
| 9817 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9818 | { | |
| 9819 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9820 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9821 | sreloc = htab->elf.irelplt; | |
| 9822 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9823 | } |
| 65f38f15 | 9824 | } |
| 57e7d118 AM |
9825 | |
| 9826 | if ((htab->elf.dynamic_sections_created | |
| 9827 | && h->dynindx != -1 | |
| 9828 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) | |
| 9829 | || h->type == STT_GNU_IFUNC) | |
| 65f38f15 | 9830 | { |
| 57e7d118 AM |
9831 | struct plt_entry *pent; |
| 9832 | bfd_boolean doneone = FALSE; | |
| 9833 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9834 | if (pent->plt.refcount > 0) | |
| 9835 | { | |
| 9836 | if (!htab->elf.dynamic_sections_created | |
| 9837 | || h->dynindx == -1) | |
| 9838 | { | |
| 9839 | s = htab->elf.iplt; | |
| 9840 | pent->plt.offset = s->size; | |
| 9841 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9842 | s = htab->elf.irelplt; | |
| 9843 | } | |
| 9844 | else | |
| 9845 | { | |
| 9846 | /* If this is the first .plt entry, make room for the special | |
| 9847 | first entry. */ | |
| 9848 | s = htab->elf.splt; | |
| 9849 | if (s->size == 0) | |
| 9850 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9851 | |
| 57e7d118 | 9852 | pent->plt.offset = s->size; |
| 65f38f15 | 9853 | |
| 57e7d118 AM |
9854 | /* Make room for this entry. */ |
| 9855 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9856 | |
| 57e7d118 AM |
9857 | /* Make room for the .glink code. */ |
| 9858 | s = htab->glink; | |
| 9859 | if (s->size == 0) | |
| 9860 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9861 | if (htab->opd_abi) | |
| 9862 | { | |
| 9863 | /* We need bigger stubs past index 32767. */ | |
| 9864 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9865 | s->size += 4; | |
| 9866 | s->size += 2*4; | |
| 9867 | } | |
| 9868 | else | |
| 9869 | s->size += 4; | |
| 65f38f15 | 9870 | |
| 57e7d118 AM |
9871 | /* We also need to make an entry in the .rela.plt section. */ |
| 9872 | s = htab->elf.srelplt; | |
| 9873 | } | |
| 9874 | s->size += sizeof (Elf64_External_Rela); | |
| 9875 | doneone = TRUE; | |
| 9876 | } | |
| 9877 | else | |
| 9878 | pent->plt.offset = (bfd_vma) -1; | |
| 9879 | if (!doneone) | |
| 9880 | { | |
| 9881 | h->plt.plist = NULL; | |
| 9882 | h->needs_plt = 0; | |
| 9883 | } | |
| 65f38f15 | 9884 | } |
| 57e7d118 | 9885 | else |
| 65f38f15 | 9886 | { |
| 57e7d118 AM |
9887 | h->plt.plist = NULL; |
| 9888 | h->needs_plt = 0; | |
| 65f38f15 AM |
9889 | } |
| 9890 | ||
| b34976b6 | 9891 | return TRUE; |
| 65f38f15 AM |
9892 | } |
| 9893 | ||
| a345bc8d AM |
9894 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9895 | to set up space for global entry stubs. These are put in glink, | |
| 9896 | after the branch table. */ | |
| 65f38f15 | 9897 | |
| b34976b6 | 9898 | static bfd_boolean |
| a345bc8d | 9899 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9900 | { |
| a345bc8d AM |
9901 | struct bfd_link_info *info; |
| 9902 | struct ppc_link_hash_table *htab; | |
| 9903 | struct plt_entry *pent; | |
| 9904 | asection *s; | |
| 65f38f15 | 9905 | |
| a345bc8d AM |
9906 | if (h->root.type == bfd_link_hash_indirect) |
| 9907 | return TRUE; | |
| 65f38f15 | 9908 | |
| a345bc8d AM |
9909 | if (!h->pointer_equality_needed) |
| 9910 | return TRUE; | |
| 65f38f15 | 9911 | |
| a345bc8d AM |
9912 | if (h->def_regular) |
| 9913 | return TRUE; | |
| 65f38f15 | 9914 | |
| a345bc8d AM |
9915 | info = inf; |
| 9916 | htab = ppc_hash_table (info); | |
| 9917 | if (htab == NULL) | |
| 9918 | return FALSE; | |
| 9919 | ||
| 9920 | s = htab->glink; | |
| 9921 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9922 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9923 | && pent->addend == 0) | |
| 9924 | { | |
| afe397ea AM |
9925 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9926 | and we are not generating a shared library or pie, then we | |
| 9927 | need to define the symbol in the executable on a call stub. | |
| 9928 | This is to avoid text relocations. */ | |
| a345bc8d | 9929 | s->size = (s->size + 15) & -16; |
| 8a2058b5 | 9930 | h->root.type = bfd_link_hash_defined; |
| afe397ea AM |
9931 | h->root.u.def.section = s; |
| 9932 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9933 | s->size += 16; |
| 9934 | break; | |
| 9935 | } | |
| 9936 | return TRUE; | |
| 9937 | } | |
| 9938 | ||
| 9939 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9940 | read-only sections. */ | |
| 9941 | ||
| 9942 | static bfd_boolean | |
| 9943 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9944 | { | |
| 9945 | if (h->root.type == bfd_link_hash_indirect) | |
| 9946 | return TRUE; | |
| 9947 | ||
| 9948 | if (readonly_dynrelocs (h)) | |
| 9949 | { | |
| 9950 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9951 | ||
| 9952 | /* Not an error, just cut short the traversal. */ | |
| 9953 | return FALSE; | |
| 65f38f15 | 9954 | } |
| b34976b6 | 9955 | return TRUE; |
| 65f38f15 AM |
9956 | } |
| 9957 | ||
| 9958 | /* Set the sizes of the dynamic sections. */ | |
| 9959 | ||
| b34976b6 | 9960 | static bfd_boolean |
| ee67d69a | 9961 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9962 | struct bfd_link_info *info) |
| 65f38f15 AM |
9963 | { |
| 9964 | struct ppc_link_hash_table *htab; | |
| 9965 | bfd *dynobj; | |
| 9966 | asection *s; | |
| b34976b6 | 9967 | bfd_boolean relocs; |
| 65f38f15 | 9968 | bfd *ibfd; |
| 7865406b | 9969 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9970 | |
| 9971 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9972 | if (htab == NULL) |
| 9973 | return FALSE; | |
| 9974 | ||
| 65f38f15 AM |
9975 | dynobj = htab->elf.dynobj; |
| 9976 | if (dynobj == NULL) | |
| 9977 | abort (); | |
| 9978 | ||
| 9979 | if (htab->elf.dynamic_sections_created) | |
| 9980 | { | |
| 9981 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9982 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9983 | { |
| 3d4d4302 | 9984 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9985 | if (s == NULL) |
| 9986 | abort (); | |
| eea6121a | 9987 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9988 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9989 | } | |
| 9990 | } | |
| 9991 | ||
| 9992 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9993 | relocs. */ | |
| c72f2fb2 | 9994 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9995 | { |
| 411e1bfb AM |
9996 | struct got_entry **lgot_ents; |
| 9997 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9998 | struct plt_entry **local_plt; |
| 9999 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10000 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10001 | bfd_size_type locsymcount; |
| 10002 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10003 | |
| 0c8d6e5c | 10004 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10005 | continue; |
| 10006 | ||
| 10007 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10008 | { | |
| 19e08130 | 10009 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10010 | |
| 6edfbbad | 10011 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10012 | { |
| ec338859 AM |
10013 | if (!bfd_is_abs_section (p->sec) |
| 10014 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10015 | { | |
| 10016 | /* Input section has been discarded, either because | |
| 10017 | it is a copy of a linkonce section or due to | |
| 10018 | linker script /DISCARD/, so we'll be discarding | |
| 10019 | the relocs too. */ | |
| 10020 | } | |
| 248866a8 | 10021 | else if (p->count != 0) |
| ec338859 | 10022 | { |
| 19e08130 AM |
10023 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10024 | if (p->ifunc) | |
| 33e44f2e | 10025 | srel = htab->elf.irelplt; |
| eea6121a | 10026 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10027 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10028 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10029 | } |
| 65f38f15 AM |
10030 | } |
| 10031 | } | |
| 10032 | ||
| 411e1bfb AM |
10033 | lgot_ents = elf_local_got_ents (ibfd); |
| 10034 | if (!lgot_ents) | |
| 65f38f15 AM |
10035 | continue; |
| 10036 | ||
| 0ffa91dd | 10037 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10038 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10039 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10040 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10041 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10042 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10043 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10044 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10045 | { |
| 0b8bcf0d | 10046 | struct got_entry **pent, *ent; |
| 411e1bfb | 10047 | |
| 0b8bcf0d AM |
10048 | pent = lgot_ents; |
| 10049 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10050 | if (ent->got.refcount > 0) |
| 10051 | { | |
| e7b938ca | 10052 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10053 | { |
| 927be08e | 10054 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10055 | *pent = ent->next; |
| 411e1bfb AM |
10056 | } |
| 10057 | else | |
| 10058 | { | |
| 19e08130 AM |
10059 | unsigned int ent_size = 8; |
| 10060 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10061 | ||
| eea6121a | 10062 | ent->got.offset = s->size; |
| e7b938ca | 10063 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10064 | { |
| 19e08130 AM |
10065 | ent_size *= 2; |
| 10066 | rel_size *= 2; | |
| 10067 | } | |
| 10068 | s->size += ent_size; | |
| 10069 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10070 | { | |
| 33e44f2e | 10071 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10072 | htab->got_reli_size += rel_size; |
| 10073 | } | |
| 0e1862bb | 10074 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
10075 | { |
| 10076 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10077 | srel->size += rel_size; | |
| 927be08e | 10078 | } |
| 0b8bcf0d | 10079 | pent = &ent->next; |
| 411e1bfb AM |
10080 | } |
| 10081 | } | |
| 10082 | else | |
| 0b8bcf0d | 10083 | *pent = ent->next; |
| 65f38f15 | 10084 | } |
| e054468f AM |
10085 | |
| 10086 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10087 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10088 | { | |
| 10089 | struct plt_entry *ent; | |
| 10090 | ||
| 10091 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10092 | if (ent->plt.refcount > 0) | |
| 10093 | { | |
| 33e44f2e | 10094 | s = htab->elf.iplt; |
| e054468f | 10095 | ent->plt.offset = s->size; |
| b9e5796b | 10096 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10097 | |
| 33e44f2e | 10098 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10099 | } |
| 10100 | else | |
| 10101 | ent->plt.offset = (bfd_vma) -1; | |
| 10102 | } | |
| 65f38f15 AM |
10103 | } |
| 10104 | ||
| 10105 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10106 | sym dynamic relocs. */ | |
| 4ce794b7 | 10107 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
10108 | /* Stash the end of glink branch table. */ |
| 10109 | if (htab->glink != NULL) | |
| 10110 | htab->glink->rawsize = htab->glink->size; | |
| 10111 | ||
| 0e1862bb | 10112 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10113 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10114 | |
| 7865406b | 10115 | first_tlsld = NULL; |
| c72f2fb2 | 10116 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10117 | { |
| 7865406b AM |
10118 | struct got_entry *ent; |
| 10119 | ||
| 0c8d6e5c | 10120 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10121 | continue; |
| 10122 | ||
| 7865406b AM |
10123 | ent = ppc64_tlsld_got (ibfd); |
| 10124 | if (ent->got.refcount > 0) | |
| 102890f0 | 10125 | { |
| 7865406b | 10126 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10127 | { |
| 7865406b AM |
10128 | ent->is_indirect = TRUE; |
| 10129 | ent->got.ent = first_tlsld; | |
| 10130 | } | |
| 10131 | else | |
| 10132 | { | |
| 10133 | if (first_tlsld == NULL) | |
| 10134 | first_tlsld = ent; | |
| 10135 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10136 | ent->got.offset = s->size; | |
| 10137 | ent->owner = ibfd; | |
| 10138 | s->size += 16; | |
| 0e1862bb | 10139 | if (bfd_link_pic (info)) |
| 7865406b AM |
10140 | { |
| 10141 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10142 | srel->size += sizeof (Elf64_External_Rela); | |
| 10143 | } | |
| 102890f0 AM |
10144 | } |
| 10145 | } | |
| 10146 | else | |
| 7865406b | 10147 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10148 | } |
| 10149 | ||
| 65f38f15 AM |
10150 | /* We now have determined the sizes of the various dynamic sections. |
| 10151 | Allocate memory for them. */ | |
| b34976b6 | 10152 | relocs = FALSE; |
| 65f38f15 AM |
10153 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10154 | { | |
| 10155 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10156 | continue; | |
| 10157 | ||
| 4ce794b7 | 10158 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10159 | /* These haven't been allocated yet; don't strip. */ |
| 10160 | continue; | |
| 33e44f2e AM |
10161 | else if (s == htab->elf.sgot |
| 10162 | || s == htab->elf.splt | |
| 10163 | || s == htab->elf.iplt | |
| c456f082 AM |
10164 | || s == htab->glink |
| 10165 | || s == htab->dynbss) | |
| 65f38f15 AM |
10166 | { |
| 10167 | /* Strip this section if we don't need it; see the | |
| 10168 | comment below. */ | |
| 5bd4f169 | 10169 | } |
| 58d180e8 AM |
10170 | else if (s == htab->glink_eh_frame) |
| 10171 | { | |
| 10172 | if (!bfd_is_abs_section (s->output_section)) | |
| 10173 | /* Not sized yet. */ | |
| 10174 | continue; | |
| 10175 | } | |
| 70cc837d | 10176 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10177 | { |
| c456f082 | 10178 | if (s->size != 0) |
| 5bd4f169 | 10179 | { |
| 33e44f2e | 10180 | if (s != htab->elf.srelplt) |
| b34976b6 | 10181 | relocs = TRUE; |
| 5bd4f169 AM |
10182 | |
| 10183 | /* We use the reloc_count field as a counter if we need | |
| 10184 | to copy relocs into the output file. */ | |
| 10185 | s->reloc_count = 0; | |
| 10186 | } | |
| 10187 | } | |
| 65f38f15 | 10188 | else |
| 5bd4f169 AM |
10189 | { |
| 10190 | /* It's not one of our sections, so don't allocate space. */ | |
| 10191 | continue; | |
| 10192 | } | |
| 10193 | ||
| eea6121a | 10194 | if (s->size == 0) |
| 5bd4f169 | 10195 | { |
| c456f082 AM |
10196 | /* If we don't need this section, strip it from the |
| 10197 | output file. This is mostly to handle .rela.bss and | |
| 10198 | .rela.plt. We must create both sections in | |
| 10199 | create_dynamic_sections, because they must be created | |
| 10200 | before the linker maps input sections to output | |
| 10201 | sections. The linker does that before | |
| 10202 | adjust_dynamic_symbol is called, and it is that | |
| 10203 | function which decides whether anything needs to go | |
| 10204 | into these sections. */ | |
| 8423293d | 10205 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10206 | continue; |
| 10207 | } | |
| 10208 | ||
| c456f082 | 10209 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10210 | continue; |
| 10211 | ||
| 65f38f15 AM |
10212 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10213 | here in case unused entries are not reclaimed before the | |
| 10214 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10215 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10216 | sections instead of garbage. | |
| 10217 | We also rely on the section contents being zero when writing | |
| 10218 | the GOT. */ | |
| eea6121a | 10219 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10220 | if (s->contents == NULL) |
| b34976b6 | 10221 | return FALSE; |
| 5bd4f169 AM |
10222 | } |
| 10223 | ||
| c72f2fb2 | 10224 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10225 | { |
| 0c8d6e5c | 10226 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10227 | continue; |
| 10228 | ||
| e717da7e | 10229 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10230 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10231 | { |
| eea6121a | 10232 | if (s->size == 0) |
| 8423293d | 10233 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10234 | else |
| 10235 | { | |
| eea6121a | 10236 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10237 | if (s->contents == NULL) |
| 10238 | return FALSE; | |
| 10239 | } | |
| 10240 | } | |
| 10241 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10242 | if (s != NULL) | |
| 10243 | { | |
| eea6121a | 10244 | if (s->size == 0) |
| 8423293d | 10245 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10246 | else |
| 10247 | { | |
| eea6121a | 10248 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10249 | if (s->contents == NULL) |
| 10250 | return FALSE; | |
| 10251 | relocs = TRUE; | |
| 10252 | s->reloc_count = 0; | |
| 10253 | } | |
| 10254 | } | |
| 10255 | } | |
| 10256 | ||
| e86ce104 | 10257 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10258 | { |
| e8910a83 AM |
10259 | bfd_boolean tls_opt; |
| 10260 | ||
| 5bd4f169 AM |
10261 | /* Add some entries to the .dynamic section. We fill in the |
| 10262 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10263 | must add the entries now so that we get the correct size for | |
| 10264 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10265 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10266 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10267 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10268 | |
| 0e1862bb | 10269 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10270 | { |
| dc810e39 | 10271 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10272 | return FALSE; |
| 5bd4f169 AM |
10273 | } |
| 10274 | ||
| 33e44f2e | 10275 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10276 | { |
| dc810e39 AM |
10277 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10278 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10279 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10280 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10281 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10282 | return FALSE; |
| 5bd4f169 AM |
10283 | } |
| 10284 | ||
| ee67d69a | 10285 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10286 | { |
| 10287 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10288 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10289 | return FALSE; |
| 19397422 AM |
10290 | } |
| 10291 | ||
| 7c9cf415 | 10292 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10293 | && htab->tls_get_addr_fd != NULL |
| 10294 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10295 | if (tls_opt || !htab->opd_abi) | |
| 10296 | { | |
| 10297 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10298 | return FALSE; | |
| 10299 | } | |
| a7f2871e | 10300 | |
| 5bd4f169 AM |
10301 | if (relocs) |
| 10302 | { | |
| dc810e39 AM |
10303 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10304 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10305 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10306 | return FALSE; |
| 5bd4f169 | 10307 | |
| 65f38f15 AM |
10308 | /* If any dynamic relocs apply to a read-only section, |
| 10309 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10310 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10311 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10312 | |
| 65f38f15 | 10313 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10314 | { |
| 65f38f15 | 10315 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10316 | return FALSE; |
| 5bd4f169 | 10317 | } |
| 5bd4f169 | 10318 | } |
| 5bd4f169 | 10319 | } |
| 65f38f15 | 10320 | #undef add_dynamic_entry |
| 5bd4f169 | 10321 | |
| b34976b6 | 10322 | return TRUE; |
| 5bd4f169 AM |
10323 | } |
| 10324 | ||
| a345bc8d AM |
10325 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10326 | ||
| 10327 | static bfd_boolean | |
| 10328 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10329 | { | |
| 10330 | if (h->plt.plist != NULL | |
| 10331 | && !h->def_regular | |
| 10332 | && !h->pointer_equality_needed) | |
| 10333 | return FALSE; | |
| 10334 | ||
| 10335 | return _bfd_elf_hash_symbol (h); | |
| 10336 | } | |
| 10337 | ||
| 721956f4 | 10338 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10339 | |
| 4ce794b7 AM |
10340 | static inline enum ppc_stub_type |
| 10341 | ppc_type_of_stub (asection *input_sec, | |
| 10342 | const Elf_Internal_Rela *rel, | |
| 10343 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10344 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10345 | bfd_vma destination, |
| 10346 | unsigned long local_off) | |
| 5bd4f169 | 10347 | { |
| 721956f4 AM |
10348 | struct ppc_link_hash_entry *h = *hash; |
| 10349 | bfd_vma location; | |
| 10350 | bfd_vma branch_offset; | |
| 10351 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10352 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10353 | |
| 721956f4 AM |
10354 | if (h != NULL) |
| 10355 | { | |
| e054468f | 10356 | struct plt_entry *ent; |
| 7fe2b9a6 | 10357 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10358 | if (h->oh != NULL |
| 10359 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10360 | { |
| 10361 | fdh = ppc_follow_link (h->oh); | |
| 10362 | *hash = fdh; | |
| 10363 | } | |
| 8387904d | 10364 | |
| e054468f AM |
10365 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10366 | if (ent->addend == rel->r_addend | |
| 10367 | && ent->plt.offset != (bfd_vma) -1) | |
| 10368 | { | |
| e054468f AM |
10369 | *plt_ent = ent; |
| 10370 | return ppc_stub_plt_call; | |
| 10371 | } | |
| 5bd4f169 | 10372 | |
| 7fe2b9a6 AM |
10373 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10374 | either a defined function descriptor or a defined entry symbol | |
| 10375 | in a regular object file, then it is pointless trying to make | |
| 10376 | any other type of stub. */ | |
| 854b41e7 AM |
10377 | if (!is_static_defined (&fdh->elf) |
| 10378 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10379 | return ppc_stub_none; |
| 5d1634d7 | 10380 | } |
| e054468f AM |
10381 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10382 | { | |
| 10383 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10384 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10385 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10386 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10387 | ||
| 10388 | if (local_plt[r_symndx] != NULL) | |
| 10389 | { | |
| 10390 | struct plt_entry *ent; | |
| 10391 | ||
| 10392 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10393 | if (ent->addend == rel->r_addend | |
| 10394 | && ent->plt.offset != (bfd_vma) -1) | |
| 10395 | { | |
| 10396 | *plt_ent = ent; | |
| 10397 | return ppc_stub_plt_call; | |
| 10398 | } | |
| 10399 | } | |
| 10400 | } | |
| 5d1634d7 | 10401 | |
| 721956f4 AM |
10402 | /* Determine where the call point is. */ |
| 10403 | location = (input_sec->output_offset | |
| 10404 | + input_sec->output_section->vma | |
| 10405 | + rel->r_offset); | |
| 5d1634d7 | 10406 | |
| 721956f4 AM |
10407 | branch_offset = destination - location; |
| 10408 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10409 | |
| 721956f4 AM |
10410 | /* Determine if a long branch stub is needed. */ |
| 10411 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10412 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10413 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10414 | |
| 6911b7dc | 10415 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10416 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10417 | is needed later. */ | |
| 10418 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10419 | |
| 721956f4 | 10420 | return ppc_stub_none; |
| 5d1634d7 AM |
10421 | } |
| 10422 | ||
| 794e51c0 AM |
10423 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10424 | to update a plt entry in one thread and have another thread see a | |
| 10425 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10426 | barrier in the call stub. One solution is to make the load of the | |
| 10427 | toc word seem to appear to depend on the load of the function entry | |
| 10428 | word. Another solution is to test for r2 being zero, and branch to | |
| 10429 | the appropriate glink entry if so. | |
| 10430 | ||
| 10431 | . fake dep barrier compare | |
| 71a39c98 AM |
10432 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10433 | . mtctr 12 mtctr 12 | |
| 10434 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10435 | . add 2,2,11 cmpldi 2,0 |
| 10436 | . ld 2,xxx+8(2) bnectr+ | |
| 10437 | . bctr b <glink_entry> | |
| 10438 | ||
| 10439 | The solution involving the compare turns out to be faster, so | |
| 10440 | that's what we use unless the branch won't reach. */ | |
| 10441 | ||
| 10442 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10443 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10444 | |
| 5d1634d7 AM |
10445 | #define PPC_LO(v) ((v) & 0xffff) |
| 10446 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10447 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10448 | ||
| 794e51c0 AM |
10449 | static inline unsigned int |
| 10450 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10451 | struct ppc_stub_hash_entry *stub_entry, | |
| 10452 | bfd_vma off) | |
| 10453 | { | |
| b9e5796b AM |
10454 | unsigned size = 12; |
| 10455 | ||
| 10456 | if (ALWAYS_EMIT_R2SAVE | |
| 10457 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10458 | size += 4; | |
| 10459 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10460 | size += 4; |
| b9e5796b AM |
10461 | if (htab->opd_abi) |
| 10462 | { | |
| 10463 | size += 4; | |
| e7d1c40c | 10464 | if (htab->params->plt_static_chain) |
| b9e5796b | 10465 | size += 4; |
| bd4d2eaa AM |
10466 | if (htab->params->plt_thread_safe |
| 10467 | && htab->elf.dynamic_sections_created | |
| 10468 | && stub_entry->h != NULL | |
| 10469 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10470 | size += 8; |
| e7d1c40c | 10471 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10472 | size += 4; |
| 10473 | } | |
| 794e51c0 AM |
10474 | if (stub_entry->h != NULL |
| 10475 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10476 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10477 | && htab->params->tls_get_addr_opt) |
| 794e51c0 AM |
10478 | size += 13 * 4; |
| 10479 | return size; | |
| 10480 | } | |
| 10481 | ||
| 10482 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10483 | then return the padding needed to do so. */ | |
| 10484 | static inline unsigned int | |
| 10485 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10486 | struct ppc_stub_hash_entry *stub_entry, | |
| 10487 | bfd_vma plt_off) | |
| 10488 | { | |
| e7d1c40c | 10489 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10490 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10491 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10492 | |
| 10493 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10494 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10495 | return stub_align - (stub_off & (stub_align - 1)); |
| 10496 | return 0; | |
| 10497 | } | |
| 10498 | ||
| 10499 | /* Build a .plt call stub. */ | |
| 10500 | ||
| 10501 | static inline bfd_byte * | |
| 10502 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10503 | struct ppc_stub_hash_entry *stub_entry, | |
| 10504 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10505 | { | |
| e7d1c40c | 10506 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10507 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10508 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10509 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10510 | && htab->elf.dynamic_sections_created | |
| 10511 | && stub_entry->h != NULL | |
| 10512 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10513 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10514 | bfd_vma cmp_branch_off = 0; | |
| 10515 | ||
| 10516 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10517 | && plt_load_toc |
| 794e51c0 | 10518 | && plt_thread_safe |
| bd4d2eaa AM |
10519 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10520 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10521 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10522 | { |
| 10523 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10524 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10525 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10526 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10527 | bfd_vma to, from; | |
| 10528 | ||
| 68d62958 AM |
10529 | if (pltindex > 32768) |
| 10530 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10531 | to = (glinkoff |
| 10532 | + htab->glink->output_offset | |
| 10533 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10534 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10535 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10536 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10537 | + 4 * (PPC_HA (offset) != 0) | |
| 10538 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10539 | != PPC_HA (offset)) | |
| 10540 | + 4 * (plt_static_chain != 0) | |
| 10541 | + 20 | |
| 6f20ed8a AM |
10542 | + stub_entry->group->stub_sec->output_offset |
| 10543 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10544 | cmp_branch_off = to - from; |
| 10545 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10546 | } | |
| 10547 | ||
| ac2df442 AM |
10548 | if (PPC_HA (offset) != 0) |
| 10549 | { | |
| 176a0d42 AM |
10550 | if (r != NULL) |
| 10551 | { | |
| 794e51c0 AM |
10552 | if (ALWAYS_EMIT_R2SAVE |
| 10553 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10554 | r[0].r_offset += 4; | |
| 176a0d42 | 10555 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10556 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10557 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10558 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10559 | if (plt_load_toc) |
| 176a0d42 | 10560 | { |
| b9e5796b | 10561 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10562 | { |
| b9e5796b AM |
10563 | r[2].r_offset = r[1].r_offset + 4; |
| 10564 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10565 | r[2].r_addend = r[0].r_addend; | |
| 10566 | } | |
| 10567 | else | |
| 10568 | { | |
| 10569 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10570 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10571 | r[2].r_addend = r[0].r_addend + 8; | |
| 10572 | if (plt_static_chain) | |
| 10573 | { | |
| 10574 | r[3].r_offset = r[2].r_offset + 4; | |
| 10575 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10576 | r[3].r_addend = r[0].r_addend + 16; | |
| 10577 | } | |
| c7131b65 | 10578 | } |
| 176a0d42 AM |
10579 | } |
| 10580 | } | |
| 794e51c0 AM |
10581 | if (ALWAYS_EMIT_R2SAVE |
| 10582 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10583 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10584 | if (plt_load_toc) |
| 10585 | { | |
| 10586 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10587 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10588 | } | |
| 10589 | else | |
| 10590 | { | |
| 10591 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10592 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10593 | } | |
| b9e5796b AM |
10594 | if (plt_load_toc |
| 10595 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10596 | { |
| 71a39c98 | 10597 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10598 | offset = 0; |
| 10599 | } | |
| 71a39c98 | 10600 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10601 | if (plt_load_toc) |
| 794e51c0 | 10602 | { |
| b9e5796b AM |
10603 | if (use_fake_dep) |
| 10604 | { | |
| 10605 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10606 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10607 | } | |
| 10608 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10609 | if (plt_static_chain) | |
| 10610 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10611 | } |
| ac2df442 AM |
10612 | } |
| 10613 | else | |
| 10614 | { | |
| 176a0d42 AM |
10615 | if (r != NULL) |
| 10616 | { | |
| 794e51c0 AM |
10617 | if (ALWAYS_EMIT_R2SAVE |
| 10618 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10619 | r[0].r_offset += 4; | |
| 176a0d42 | 10620 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10621 | if (plt_load_toc) |
| 176a0d42 | 10622 | { |
| b9e5796b | 10623 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10624 | { |
| b9e5796b AM |
10625 | r[1].r_offset = r[0].r_offset + 4; |
| 10626 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10627 | r[1].r_addend = r[0].r_addend; | |
| 10628 | } | |
| 10629 | else | |
| 10630 | { | |
| 10631 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10632 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10633 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10634 | if (plt_static_chain) | |
| 10635 | { | |
| 10636 | r[2].r_offset = r[1].r_offset + 4; | |
| 10637 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10638 | r[2].r_addend = r[0].r_addend + 8; | |
| 10639 | } | |
| c7131b65 | 10640 | } |
| 176a0d42 AM |
10641 | } |
| 10642 | } | |
| 794e51c0 AM |
10643 | if (ALWAYS_EMIT_R2SAVE |
| 10644 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10645 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10646 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10647 | if (plt_load_toc |
| 10648 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10649 | { |
| 10650 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10651 | offset = 0; | |
| 10652 | } | |
| 71a39c98 | 10653 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10654 | if (plt_load_toc) |
| 794e51c0 | 10655 | { |
| b9e5796b AM |
10656 | if (use_fake_dep) |
| 10657 | { | |
| 10658 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10659 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10660 | } | |
| 10661 | if (plt_static_chain) | |
| 10662 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10663 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10664 | } |
| ac2df442 | 10665 | } |
| b9e5796b | 10666 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10667 | { |
| 10668 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10669 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10670 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10671 | } |
| 10672 | else | |
| 10673 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10674 | return p; |
| 10675 | } | |
| 10676 | ||
| a7f2871e AM |
10677 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10678 | ||
| 10679 | #define LD_R11_0R3 0xe9630000 | |
| 10680 | #define LD_R12_0R3 0xe9830000 | |
| 10681 | #define MR_R0_R3 0x7c601b78 | |
| 10682 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10683 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10684 | #define BEQLR 0x4d820020 | |
| 10685 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10686 | #define STD_R11_0R1 0xf9610000 |
| 10687 | #define BCTRL 0x4e800421 | |
| 10688 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10689 | #define MTLR_R11 0x7d6803a6 |
| 10690 | ||
| 10691 | static inline bfd_byte * | |
| 794e51c0 AM |
10692 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10693 | struct ppc_stub_hash_entry *stub_entry, | |
| 10694 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10695 | { |
| e7d1c40c | 10696 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10697 | |
| a7f2871e AM |
10698 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10699 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10700 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10701 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10702 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10703 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10704 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10705 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10706 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10707 | |
| 10708 | if (r != NULL) | |
| 10709 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10710 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10711 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10712 | ||
| a078d95a | 10713 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10714 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10715 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10716 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10717 | ||
| 10718 | return p; | |
| 10719 | } | |
| 10720 | ||
| 176a0d42 AM |
10721 | static Elf_Internal_Rela * |
| 10722 | get_relocs (asection *sec, int count) | |
| 10723 | { | |
| 10724 | Elf_Internal_Rela *relocs; | |
| 10725 | struct bfd_elf_section_data *elfsec_data; | |
| 10726 | ||
| 10727 | elfsec_data = elf_section_data (sec); | |
| 10728 | relocs = elfsec_data->relocs; | |
| 10729 | if (relocs == NULL) | |
| 10730 | { | |
| 10731 | bfd_size_type relsize; | |
| 10732 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10733 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10734 | if (relocs == NULL) | |
| 10735 | return NULL; | |
| 10736 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10737 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10738 | sizeof (Elf_Internal_Shdr)); | |
| 10739 | if (elfsec_data->rela.hdr == NULL) | |
| 10740 | return NULL; | |
| 10741 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10742 | * sizeof (Elf64_External_Rela)); | |
| 10743 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10744 | sec->reloc_count = 0; |
| 10745 | } | |
| 10746 | relocs += sec->reloc_count; | |
| 10747 | sec->reloc_count += count; | |
| 10748 | return relocs; | |
| 10749 | } | |
| 10750 | ||
| aa374f67 | 10751 | static bfd_vma |
| 25f53a85 | 10752 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10753 | struct ppc_stub_hash_entry *stub_entry) |
| 10754 | { | |
| 25f53a85 | 10755 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10756 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10757 | |
| 10758 | if (r2off == 0) | |
| 10759 | { | |
| 10760 | /* Support linking -R objects. Get the toc pointer from the | |
| 10761 | opd entry. */ | |
| 10762 | char buf[8]; | |
| b9e5796b AM |
10763 | if (!htab->opd_abi) |
| 10764 | return r2off; | |
| aa374f67 AM |
10765 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10766 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10767 | ||
| 10768 | if (strcmp (opd->name, ".opd") != 0 | |
| 10769 | || opd->reloc_count != 0) | |
| 10770 | { | |
| bc30df16 | 10771 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10772 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10773 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10774 | return (bfd_vma) -1; |
| aa374f67 AM |
10775 | } |
| 10776 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10777 | return (bfd_vma) -1; |
| aa374f67 | 10778 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10779 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10780 | } |
| 6f20ed8a | 10781 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10782 | return r2off; |
| 10783 | } | |
| 10784 | ||
| b34976b6 | 10785 | static bfd_boolean |
| 4ce794b7 | 10786 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10787 | { |
| 721956f4 AM |
10788 | struct ppc_stub_hash_entry *stub_entry; |
| 10789 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10790 | struct bfd_link_info *info; |
| 10791 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10792 | bfd_byte *loc; |
| 10793 | bfd_byte *p; | |
| ee75fd95 | 10794 | bfd_vma dest, off; |
| 721956f4 | 10795 | int size; |
| 176a0d42 | 10796 | Elf_Internal_Rela *r; |
| e054468f | 10797 | asection *plt; |
| 5d1634d7 | 10798 | |
| 721956f4 AM |
10799 | /* Massage our args to the form they really have. */ |
| 10800 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10801 | info = in_arg; |
| 5d1634d7 | 10802 | |
| 5d1634d7 | 10803 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10804 | if (htab == NULL) |
| 10805 | return FALSE; | |
| 5d1634d7 | 10806 | |
| 721956f4 | 10807 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10808 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10809 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10810 | |
| 4ce794b7 | 10811 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10812 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10813 | { |
| 721956f4 | 10814 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10815 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10816 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10817 | dest = (stub_entry->target_value |
| 10818 | + stub_entry->target_section->output_offset | |
| 10819 | + stub_entry->target_section->output_section->vma); | |
| 10820 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10821 | off = dest; | |
| 5d1634d7 | 10822 | |
| 721956f4 AM |
10823 | /* And this is where we are coming from. */ |
| 10824 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10825 | + stub_entry->group->stub_sec->output_offset |
| 10826 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10827 | |
| ac2df442 AM |
10828 | size = 4; |
| 10829 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10830 | { |
| 25f53a85 | 10831 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10832 | |
| a7c49797 | 10833 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10834 | { |
| 10835 | htab->stub_error = TRUE; | |
| 10836 | return FALSE; | |
| 10837 | } | |
| e7d1c40c | 10838 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10839 | loc += 4; |
| a7c49797 | 10840 | size = 8; |
| ac2df442 AM |
10841 | if (PPC_HA (r2off) != 0) |
| 10842 | { | |
| e7d1c40c AM |
10843 | bfd_put_32 (htab->params->stub_bfd, |
| 10844 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10845 | loc += 4; |
| a7c49797 AM |
10846 | size += 4; |
| 10847 | } | |
| 10848 | if (PPC_LO (r2off) != 0) | |
| 10849 | { | |
| 10850 | bfd_put_32 (htab->params->stub_bfd, | |
| 10851 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10852 | loc += 4; | |
| 10853 | size += 4; | |
| ac2df442 | 10854 | } |
| ac2df442 | 10855 | off -= size - 4; |
| ad8e1ba5 | 10856 | } |
| e7d1c40c | 10857 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10858 | |
| 5c3dead3 AM |
10859 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10860 | { | |
| bc30df16 AM |
10861 | info->callbacks->einfo |
| 10862 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10863 | stub_entry->root.string); | |
| 5c3dead3 AM |
10864 | htab->stub_error = TRUE; |
| 10865 | return FALSE; | |
| 10866 | } | |
| ee75fd95 AM |
10867 | |
| 10868 | if (info->emitrelocations) | |
| 10869 | { | |
| 6f20ed8a | 10870 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10871 | if (r == NULL) |
| 10872 | return FALSE; | |
| 6f20ed8a | 10873 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10874 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10875 | r->r_addend = dest; | |
| 10876 | if (stub_entry->h != NULL) | |
| 10877 | { | |
| 10878 | struct elf_link_hash_entry **hashes; | |
| 10879 | unsigned long symndx; | |
| 10880 | struct ppc_link_hash_entry *h; | |
| 10881 | ||
| e7d1c40c | 10882 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10883 | if (hashes == NULL) |
| 10884 | { | |
| 10885 | bfd_size_type hsize; | |
| 10886 | ||
| 10887 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10888 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10889 | if (hashes == NULL) |
| 10890 | return FALSE; | |
| e7d1c40c | 10891 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10892 | htab->stub_globals = 1; |
| 10893 | } | |
| 10894 | symndx = htab->stub_globals++; | |
| 10895 | h = stub_entry->h; | |
| 10896 | hashes[symndx] = &h->elf; | |
| 10897 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10898 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10899 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10900 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10901 | /* H is an opd symbol. The addend must be zero. */ | |
| 10902 | r->r_addend = 0; | |
| 10903 | else | |
| 10904 | { | |
| 10905 | off = (h->elf.root.u.def.value | |
| 10906 | + h->elf.root.u.def.section->output_offset | |
| 10907 | + h->elf.root.u.def.section->output_section->vma); | |
| 10908 | r->r_addend -= off; | |
| 10909 | } | |
| 10910 | } | |
| 10911 | } | |
| 721956f4 | 10912 | break; |
| e86ce104 | 10913 | |
| 721956f4 | 10914 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10915 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10916 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10917 | stub_entry->root.string + 9, | |
| b34976b6 | 10918 | FALSE, FALSE); |
| 721956f4 AM |
10919 | if (br_entry == NULL) |
| 10920 | { | |
| 8de848d8 | 10921 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10922 | stub_entry->root.string); |
| b34976b6 AM |
10923 | htab->stub_error = TRUE; |
| 10924 | return FALSE; | |
| 721956f4 AM |
10925 | } |
| 10926 | ||
| 176a0d42 AM |
10927 | dest = (stub_entry->target_value |
| 10928 | + stub_entry->target_section->output_offset | |
| 10929 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10930 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10931 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10932 | |
| 176a0d42 | 10933 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10934 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10935 | |
| f94498ff | 10936 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10937 | { |
| f94498ff | 10938 | br_entry->iter = 0; |
| 84f5d08e | 10939 | |
| f94498ff | 10940 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10941 | { |
| f94498ff AM |
10942 | /* Create a reloc for the branch lookup table entry. */ |
| 10943 | Elf_Internal_Rela rela; | |
| 10944 | bfd_byte *rl; | |
| 10945 | ||
| 10946 | rela.r_offset = (br_entry->offset | |
| 10947 | + htab->brlt->output_offset | |
| 10948 | + htab->brlt->output_section->vma); | |
| 10949 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10950 | rela.r_addend = dest; |
| f94498ff AM |
10951 | |
| 10952 | rl = htab->relbrlt->contents; | |
| 10953 | rl += (htab->relbrlt->reloc_count++ | |
| 10954 | * sizeof (Elf64_External_Rela)); | |
| 10955 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10956 | } | |
| 10957 | else if (info->emitrelocations) | |
| 10958 | { | |
| 176a0d42 AM |
10959 | r = get_relocs (htab->brlt, 1); |
| 10960 | if (r == NULL) | |
| 10961 | return FALSE; | |
| 10962 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10963 | normal reloc processing. Symbols and offsets are not | |
| 10964 | translated from input file to output file form, so | |
| 10965 | set up the offset per the output file. */ | |
| f94498ff AM |
10966 | r->r_offset = (br_entry->offset |
| 10967 | + htab->brlt->output_offset | |
| 10968 | + htab->brlt->output_section->vma); | |
| 10969 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10970 | r->r_addend = dest; |
| 84f5d08e | 10971 | } |
| 84f5d08e | 10972 | } |
| 721956f4 | 10973 | |
| 176a0d42 AM |
10974 | dest = (br_entry->offset |
| 10975 | + htab->brlt->output_offset | |
| 10976 | + htab->brlt->output_section->vma); | |
| 10977 | ||
| 10978 | off = (dest | |
| 4ce794b7 | 10979 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 10980 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 10981 | |
| ad8e1ba5 | 10982 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10983 | { |
| 25f53a85 | 10984 | info->callbacks->einfo |
| bc30df16 | 10985 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10986 | stub_entry->root.string); |
| 5d1634d7 | 10987 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10988 | htab->stub_error = TRUE; |
| 10989 | return FALSE; | |
| 5d1634d7 | 10990 | } |
| 41bd81ab | 10991 | |
| 176a0d42 AM |
10992 | if (info->emitrelocations) |
| 10993 | { | |
| 6f20ed8a | 10994 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
10995 | if (r == NULL) |
| 10996 | return FALSE; | |
| 6f20ed8a | 10997 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
10998 | if (bfd_big_endian (info->output_bfd)) |
| 10999 | r[0].r_offset += 2; | |
| 00f412ee | 11000 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11001 | r[0].r_offset += 4; |
| 11002 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11003 | r[0].r_addend = dest; | |
| 11004 | if (PPC_HA (off) != 0) | |
| 11005 | { | |
| 11006 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11007 | r[1].r_offset = r[0].r_offset + 4; | |
| 11008 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11009 | r[1].r_addend = r[0].r_addend; | |
| 11010 | } | |
| 11011 | } | |
| 11012 | ||
| 00f412ee | 11013 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11014 | { |
| 176a0d42 | 11015 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11016 | { |
| 11017 | size = 16; | |
| e7d1c40c | 11018 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11019 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11020 | loc += 4; |
| e7d1c40c | 11021 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11022 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11023 | } |
| 11024 | else | |
| 11025 | { | |
| 11026 | size = 12; | |
| e7d1c40c AM |
11027 | bfd_put_32 (htab->params->stub_bfd, |
| 11028 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 11029 | } |
| ad8e1ba5 AM |
11030 | } |
| 11031 | else | |
| 11032 | { | |
| 25f53a85 | 11033 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11034 | |
| a7c49797 | 11035 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11036 | { |
| 11037 | htab->stub_error = TRUE; | |
| 11038 | return FALSE; | |
| 11039 | } | |
| ad8e1ba5 | 11040 | |
| e7d1c40c | 11041 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 11042 | loc += 4; |
| 00f412ee | 11043 | size = 16; |
| 176a0d42 | 11044 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11045 | { |
| 11046 | size += 4; | |
| e7d1c40c | 11047 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11048 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11049 | loc += 4; |
| e7d1c40c | 11050 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11051 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11052 | } |
| 11053 | else | |
| e7d1c40c | 11054 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
11055 | |
| 11056 | if (PPC_HA (r2off) != 0) | |
| 11057 | { | |
| 11058 | size += 4; | |
| 00f412ee | 11059 | loc += 4; |
| e7d1c40c AM |
11060 | bfd_put_32 (htab->params->stub_bfd, |
| 11061 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
11062 | } |
| 11063 | if (PPC_LO (r2off) != 0) | |
| 11064 | { | |
| 11065 | size += 4; | |
| ac2df442 | 11066 | loc += 4; |
| e7d1c40c AM |
11067 | bfd_put_32 (htab->params->stub_bfd, |
| 11068 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 11069 | } |
| ad8e1ba5 AM |
11070 | } |
| 11071 | loc += 4; | |
| e7d1c40c | 11072 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 11073 | loc += 4; |
| e7d1c40c | 11074 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 11075 | break; |
| 5d1634d7 | 11076 | |
| 721956f4 | 11077 | case ppc_stub_plt_call: |
| 794e51c0 | 11078 | case ppc_stub_plt_call_r2save: |
| e054468f | 11079 | if (stub_entry->h != NULL |
| b31867b6 AM |
11080 | && stub_entry->h->is_func_descriptor |
| 11081 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11082 | { |
| b31867b6 AM |
11083 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11084 | ||
| 11085 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11086 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| b31867b6 AM |
11087 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 11088 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
11089 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 11090 | fh->was_undefined = 0; | |
| c862ae31 AM |
11091 | } |
| 11092 | ||
| 721956f4 | 11093 | /* Now build the stub. */ |
| e054468f | 11094 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11095 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11096 | abort (); |
| 11097 | ||
| 33e44f2e | 11098 | plt = htab->elf.splt; |
| 25f23106 AM |
11099 | if (!htab->elf.dynamic_sections_created |
| 11100 | || stub_entry->h == NULL | |
| 11101 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11102 | plt = htab->elf.iplt; |
| e054468f AM |
11103 | |
| 11104 | dest += plt->output_offset + plt->output_section->vma; | |
| 11105 | ||
| 11106 | if (stub_entry->h == NULL | |
| 11107 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11108 | { | |
| 11109 | Elf_Internal_Rela rela; | |
| 11110 | bfd_byte *rl; | |
| 11111 | ||
| 11112 | rela.r_offset = dest; | |
| ee67d69a AM |
11113 | if (htab->opd_abi) |
| 11114 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11115 | else | |
| 11116 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11117 | rela.r_addend = (stub_entry->target_value |
| 11118 | + stub_entry->target_section->output_offset | |
| 11119 | + stub_entry->target_section->output_section->vma); | |
| 11120 | ||
| 33e44f2e AM |
11121 | rl = (htab->elf.irelplt->contents |
| 11122 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11123 | * sizeof (Elf64_External_Rela))); |
| 11124 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
11125 | stub_entry->plt_ent->plt.offset |= 1; |
| 11126 | } | |
| 176a0d42 AM |
11127 | |
| 11128 | off = (dest | |
| e054468f | 11129 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11130 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11131 | |
| ad8e1ba5 | 11132 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11133 | { |
| 25f53a85 | 11134 | info->callbacks->einfo |
| 695344c0 | 11135 | /* xgettext:c-format */ |
| bc30df16 | 11136 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11137 | stub_entry->h != NULL |
| 11138 | ? stub_entry->h->elf.root.root.string | |
| 11139 | : "<local sym>"); | |
| 721956f4 | 11140 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11141 | htab->stub_error = TRUE; |
| 11142 | return FALSE; | |
| 721956f4 AM |
11143 | } |
| 11144 | ||
| e7d1c40c | 11145 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11146 | { |
| 11147 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11148 | ||
| 6f20ed8a AM |
11149 | stub_entry->group->stub_sec->size += pad; |
| 11150 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11151 | loc += pad; |
| 11152 | } | |
| 11153 | ||
| 176a0d42 AM |
11154 | r = NULL; |
| 11155 | if (info->emitrelocations) | |
| 11156 | { | |
| 6f20ed8a | 11157 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11158 | ((PPC_HA (off) != 0) |
| 11159 | + (htab->opd_abi | |
| e7d1c40c | 11160 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11161 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11162 | : 1))); | |
| 176a0d42 AM |
11163 | if (r == NULL) |
| 11164 | return FALSE; | |
| 6f20ed8a | 11165 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11166 | if (bfd_big_endian (info->output_bfd)) |
| 11167 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11168 | r[0].r_addend = dest; |
| 11169 | } | |
| a7f2871e AM |
11170 | if (stub_entry->h != NULL |
| 11171 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11172 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11173 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11174 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11175 | else |
| 794e51c0 | 11176 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11177 | size = p - loc; |
| 11178 | break; | |
| 11179 | ||
| a4b6fadd AM |
11180 | case ppc_stub_save_res: |
| 11181 | return TRUE; | |
| 11182 | ||
| 721956f4 AM |
11183 | default: |
| 11184 | BFD_FAIL (); | |
| b34976b6 | 11185 | return FALSE; |
| 721956f4 AM |
11186 | } |
| 11187 | ||
| 6f20ed8a | 11188 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11189 | |
| e7d1c40c | 11190 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11191 | { |
| 11192 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11193 | size_t len1, len2; |
| 11194 | char *name; | |
| 11195 | const char *const stub_str[] = { "long_branch", | |
| 11196 | "long_branch_r2off", | |
| 11197 | "plt_branch", | |
| 11198 | "plt_branch_r2off", | |
| 794e51c0 | 11199 | "plt_call", |
| ee75fd95 AM |
11200 | "plt_call" }; |
| 11201 | ||
| 11202 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11203 | len2 = strlen (stub_entry->root.string); | |
| 11204 | name = bfd_malloc (len1 + len2 + 2); | |
| 11205 | if (name == NULL) | |
| 11206 | return FALSE; | |
| 11207 | memcpy (name, stub_entry->root.string, 9); | |
| 11208 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11209 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11210 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11211 | if (h == NULL) |
| 11212 | return FALSE; | |
| 11213 | if (h->root.type == bfd_link_hash_new) | |
| 11214 | { | |
| 11215 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11216 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11217 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11218 | h->ref_regular = 1; |
| 11219 | h->def_regular = 1; | |
| 11220 | h->ref_regular_nonweak = 1; | |
| 11221 | h->forced_local = 1; | |
| 11222 | h->non_elf = 0; | |
| 2ec55de3 | 11223 | h->root.linker_def = 1; |
| 97b639ba AM |
11224 | } |
| 11225 | } | |
| 11226 | ||
| b34976b6 | 11227 | return TRUE; |
| 721956f4 AM |
11228 | } |
| 11229 | ||
| 11230 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11231 | we know stub section sizes, and select plt_branch stubs where | |
| 11232 | long_branch stubs won't do. */ | |
| 11233 | ||
| b34976b6 | 11234 | static bfd_boolean |
| 4ce794b7 | 11235 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11236 | { |
| 11237 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11238 | struct bfd_link_info *info; |
| 721956f4 AM |
11239 | struct ppc_link_hash_table *htab; |
| 11240 | bfd_vma off; | |
| 11241 | int size; | |
| 11242 | ||
| 11243 | /* Massage our args to the form they really have. */ | |
| 11244 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11245 | info = in_arg; |
| 11246 | ||
| 11247 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11248 | if (htab == NULL) |
| 11249 | return FALSE; | |
| 721956f4 | 11250 | |
| a4b6fadd AM |
11251 | if (stub_entry->h != NULL |
| 11252 | && stub_entry->h->save_res | |
| 11253 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11254 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11255 | { | |
| 11256 | /* Don't make stubs to out-of-line register save/restore | |
| 11257 | functions. Instead, emit copies of the functions. */ | |
| 11258 | stub_entry->group->needs_save_res = 1; | |
| 11259 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11260 | return TRUE; | |
| 11261 | } | |
| 11262 | ||
| 794e51c0 AM |
11263 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11264 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11265 | { |
| e054468f AM |
11266 | asection *plt; |
| 11267 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11268 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11269 | abort (); |
| 33e44f2e | 11270 | plt = htab->elf.splt; |
| 25f23106 AM |
11271 | if (!htab->elf.dynamic_sections_created |
| 11272 | || stub_entry->h == NULL | |
| 11273 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11274 | plt = htab->elf.iplt; |
| e054468f AM |
11275 | off += (plt->output_offset |
| 11276 | + plt->output_section->vma | |
| 11277 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11278 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11279 | |
| 794e51c0 | 11280 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11281 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11282 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11283 | if (info->emitrelocations) |
| 11284 | { | |
| 6f20ed8a | 11285 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11286 | += ((PPC_HA (off) != 0) |
| 11287 | + (htab->opd_abi | |
| e7d1c40c | 11288 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11289 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11290 | : 1)); | |
| 6f20ed8a | 11291 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11292 | } |
| 721956f4 AM |
11293 | } |
| 11294 | else | |
| 11295 | { | |
| ad8e1ba5 AM |
11296 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11297 | variants. */ | |
| ac2df442 | 11298 | bfd_vma r2off = 0; |
| 6911b7dc | 11299 | bfd_vma local_off = 0; |
| ac2df442 | 11300 | |
| 721956f4 AM |
11301 | off = (stub_entry->target_value |
| 11302 | + stub_entry->target_section->output_offset | |
| 11303 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11304 | off -= (stub_entry->group->stub_sec->size |
| 11305 | + stub_entry->group->stub_sec->output_offset | |
| 11306 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11307 | |
| ad8e1ba5 AM |
11308 | /* Reset the stub type from the plt variant in case we now |
| 11309 | can reach with a shorter stub. */ | |
| 11310 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11311 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11312 | ||
| 11313 | size = 4; | |
| 11314 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11315 | { | |
| 25f53a85 | 11316 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11317 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11318 | { |
| 11319 | htab->stub_error = TRUE; | |
| 11320 | return FALSE; | |
| 11321 | } | |
| a7c49797 | 11322 | size = 8; |
| ac2df442 | 11323 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11324 | size += 4; |
| 11325 | if (PPC_LO (r2off) != 0) | |
| 11326 | size += 4; | |
| ac2df442 | 11327 | off -= size - 4; |
| ad8e1ba5 AM |
11328 | } |
| 11329 | ||
| 6911b7dc AM |
11330 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11331 | ||
| b9e5796b AM |
11332 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11333 | Do the same for -R objects without function descriptors. */ | |
| 11334 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11335 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11336 | && r2off == 0 |
| 11337 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11338 | { |
| 11339 | struct ppc_branch_hash_entry *br_entry; | |
| 11340 | ||
| 11341 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11342 | stub_entry->root.string + 9, | |
| b34976b6 | 11343 | TRUE, FALSE); |
| 721956f4 AM |
11344 | if (br_entry == NULL) |
| 11345 | { | |
| 8de848d8 | 11346 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11347 | stub_entry->root.string); |
| b34976b6 AM |
11348 | htab->stub_error = TRUE; |
| 11349 | return FALSE; | |
| 721956f4 AM |
11350 | } |
| 11351 | ||
| 11352 | if (br_entry->iter != htab->stub_iteration) | |
| 11353 | { | |
| 11354 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11355 | br_entry->offset = htab->brlt->size; |
| 11356 | htab->brlt->size += 8; | |
| 63bc6f6c | 11357 | |
| ee75fd95 | 11358 | if (htab->relbrlt != NULL) |
| eea6121a | 11359 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11360 | else if (info->emitrelocations) |
| 11361 | { | |
| 11362 | htab->brlt->reloc_count += 1; | |
| 11363 | htab->brlt->flags |= SEC_RELOC; | |
| 11364 | } | |
| 721956f4 | 11365 | } |
| ad8e1ba5 AM |
11366 | |
| 11367 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11368 | off = (br_entry->offset |
| 11369 | + htab->brlt->output_offset | |
| 11370 | + htab->brlt->output_section->vma | |
| 11371 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11372 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11373 | |
| 176a0d42 AM |
11374 | if (info->emitrelocations) |
| 11375 | { | |
| 6f20ed8a AM |
11376 | stub_entry->group->stub_sec->reloc_count |
| 11377 | += 1 + (PPC_HA (off) != 0); | |
| 11378 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11379 | } |
| 11380 | ||
| 00f412ee | 11381 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11382 | { |
| 11383 | size = 12; | |
| 176a0d42 | 11384 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11385 | size = 16; |
| 11386 | } | |
| 11387 | else | |
| 11388 | { | |
| 00f412ee | 11389 | size = 16; |
| 176a0d42 | 11390 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11391 | size += 4; |
| 11392 | ||
| 11393 | if (PPC_HA (r2off) != 0) | |
| 11394 | size += 4; | |
| 00f412ee AM |
11395 | if (PPC_LO (r2off) != 0) |
| 11396 | size += 4; | |
| ac2df442 | 11397 | } |
| 721956f4 | 11398 | } |
| 84f5d08e AM |
11399 | else if (info->emitrelocations) |
| 11400 | { | |
| 6f20ed8a AM |
11401 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11402 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11403 | } |
| 721956f4 AM |
11404 | } |
| 11405 | ||
| 6f20ed8a | 11406 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11407 | return TRUE; |
| 721956f4 AM |
11408 | } |
| 11409 | ||
| 11410 | /* Set up various things so that we can make a list of input sections | |
| 11411 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11412 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11413 | |
| 11414 | int | |
| e7d1c40c | 11415 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11416 | { |
| 6f20ed8a | 11417 | unsigned int id; |
| 721956f4 AM |
11418 | bfd_size_type amt; |
| 11419 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11420 | ||
| 4dfe6ac6 NC |
11421 | if (htab == NULL) |
| 11422 | return -1; | |
| 4c52953f | 11423 | |
| 6f20ed8a AM |
11424 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11425 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11426 | htab->sec_info = bfd_zmalloc (amt); | |
| 11427 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11428 | return -1; |
| 11429 | ||
| 3d6f9012 AM |
11430 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11431 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11432 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11433 | |
| 721956f4 AM |
11434 | return 1; |
| 11435 | } | |
| 11436 | ||
| 927be08e AM |
11437 | /* Set up for first pass at multitoc partitioning. */ |
| 11438 | ||
| 11439 | void | |
| 11440 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11441 | { | |
| 11442 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11443 | ||
| 1c865ab2 | 11444 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11445 | htab->toc_bfd = NULL; |
| 11446 | htab->toc_first_sec = NULL; | |
| 11447 | } | |
| 11448 | ||
| e717da7e AM |
11449 | /* The linker repeatedly calls this function for each TOC input section |
| 11450 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11451 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11452 | |
| 927be08e | 11453 | bfd_boolean |
| 4ce794b7 | 11454 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11455 | { |
| 11456 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11457 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11458 | |
| 4dfe6ac6 NC |
11459 | if (htab == NULL) |
| 11460 | return FALSE; | |
| 11461 | ||
| 927be08e | 11462 | if (!htab->second_toc_pass) |
| 4c52953f | 11463 | { |
| 927be08e | 11464 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11465 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11466 | ||
| 11467 | if (new_bfd) | |
| bf102f86 AM |
11468 | { |
| 11469 | htab->toc_bfd = isec->owner; | |
| 11470 | htab->toc_first_sec = isec; | |
| 11471 | } | |
| 927be08e | 11472 | |
| bf102f86 AM |
11473 | addr = isec->output_offset + isec->output_section->vma; |
| 11474 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11475 | limit = 0x80008000; |
| 11476 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11477 | limit = 0x10000; | |
| 11478 | if (off + isec->size > limit) | |
| bf102f86 AM |
11479 | { |
| 11480 | addr = (htab->toc_first_sec->output_offset | |
| 11481 | + htab->toc_first_sec->output_section->vma); | |
| 11482 | htab->toc_curr = addr; | |
| a27e685f | 11483 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11484 | } |
| 99877b66 | 11485 | |
| 927be08e AM |
11486 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11487 | for the input section to be the offset relative to the | |
| 11488 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11489 | offset allows us to move the toc as a whole without | |
| 11490 | recalculating input elf_gp. */ | |
| 11491 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11492 | off += TOC_BASE_OFF; | |
| 11493 | ||
| 11494 | /* Die if someone uses a linker script that doesn't keep input | |
| 11495 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11496 | if (new_bfd |
| 11497 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11498 | && elf_gp (isec->owner) != off) |
| 11499 | return FALSE; | |
| 11500 | ||
| 11501 | elf_gp (isec->owner) = off; | |
| 11502 | return TRUE; | |
| 4c52953f | 11503 | } |
| 927be08e AM |
11504 | |
| 11505 | /* During the second pass toc_first_sec points to the start of | |
| 11506 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11507 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11508 | if (htab->toc_bfd == isec->owner) | |
| 11509 | return TRUE; | |
| 11510 | htab->toc_bfd = isec->owner; | |
| 11511 | ||
| 11512 | if (htab->toc_first_sec == NULL | |
| 11513 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11514 | { | |
| 11515 | htab->toc_curr = elf_gp (isec->owner); | |
| 11516 | htab->toc_first_sec = isec; | |
| 11517 | } | |
| 11518 | addr = (htab->toc_first_sec->output_offset | |
| 11519 | + htab->toc_first_sec->output_section->vma); | |
| 11520 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11521 | elf_gp (isec->owner) = off; | |
| 11522 | ||
| 11523 | return TRUE; | |
| ad8e1ba5 AM |
11524 | } |
| 11525 | ||
| 927be08e AM |
11526 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11527 | symbol H. */ | |
| 11528 | ||
| 11529 | static bfd_boolean | |
| 11530 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11531 | { | |
| 11532 | if (h->root.type == bfd_link_hash_indirect) | |
| 11533 | return TRUE; | |
| 11534 | ||
| 927be08e AM |
11535 | merge_got_entries (&h->got.glist); |
| 11536 | ||
| 11537 | return TRUE; | |
| 11538 | } | |
| 11539 | ||
| 11540 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11541 | symbol H. */ | |
| 11542 | ||
| 11543 | static bfd_boolean | |
| 11544 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11545 | { | |
| 11546 | struct got_entry *gent; | |
| 11547 | ||
| 11548 | if (h->root.type == bfd_link_hash_indirect) | |
| 11549 | return TRUE; | |
| 11550 | ||
| 927be08e AM |
11551 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11552 | if (!gent->is_indirect) | |
| 11553 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11554 | return TRUE; | |
| 11555 | } | |
| 11556 | ||
| 11557 | /* Called on the first multitoc pass after the last call to | |
| 11558 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11559 | entries. */ | |
| 11560 | ||
| 11561 | bfd_boolean | |
| 11562 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11563 | { |
| 11564 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11565 | struct bfd *ibfd, *ibfd2; |
| 11566 | bfd_boolean done_something; | |
| 11567 | ||
| 11568 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11569 | |
| 7865406b AM |
11570 | if (!htab->do_multi_toc) |
| 11571 | return FALSE; | |
| 11572 | ||
| d0fae19d | 11573 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11574 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11575 | ||
| 11576 | /* And tlsld_got. */ | |
| c72f2fb2 | 11577 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11578 | { |
| 11579 | struct got_entry *ent, *ent2; | |
| 11580 | ||
| 11581 | if (!is_ppc64_elf (ibfd)) | |
| 11582 | continue; | |
| 11583 | ||
| 11584 | ent = ppc64_tlsld_got (ibfd); | |
| 11585 | if (!ent->is_indirect | |
| 11586 | && ent->got.offset != (bfd_vma) -1) | |
| 11587 | { | |
| c72f2fb2 | 11588 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11589 | { |
| 11590 | if (!is_ppc64_elf (ibfd2)) | |
| 11591 | continue; | |
| 11592 | ||
| 11593 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11594 | if (!ent2->is_indirect | |
| 11595 | && ent2->got.offset != (bfd_vma) -1 | |
| 11596 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11597 | { | |
| 11598 | ent2->is_indirect = TRUE; | |
| 11599 | ent2->got.ent = ent; | |
| 11600 | } | |
| 11601 | } | |
| 11602 | } | |
| 11603 | } | |
| 11604 | ||
| 11605 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11606 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11607 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11608 | htab->got_reli_size = 0; |
| 11609 | ||
| c72f2fb2 | 11610 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11611 | { |
| 11612 | asection *got, *relgot; | |
| 11613 | ||
| 11614 | if (!is_ppc64_elf (ibfd)) | |
| 11615 | continue; | |
| 11616 | ||
| 11617 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11618 | if (got != NULL) | |
| 11619 | { | |
| 11620 | got->rawsize = got->size; | |
| 11621 | got->size = 0; | |
| 11622 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11623 | relgot->rawsize = relgot->size; | |
| 11624 | relgot->size = 0; | |
| 11625 | } | |
| 11626 | } | |
| 11627 | ||
| 11628 | /* Now reallocate the got, local syms first. We don't need to | |
| 11629 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11630 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11631 | { |
| 11632 | struct got_entry **lgot_ents; | |
| 11633 | struct got_entry **end_lgot_ents; | |
| 11634 | struct plt_entry **local_plt; | |
| 11635 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11636 | unsigned char *lgot_masks; |
| 927be08e AM |
11637 | bfd_size_type locsymcount; |
| 11638 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11639 | asection *s; |
| 927be08e AM |
11640 | |
| 11641 | if (!is_ppc64_elf (ibfd)) | |
| 11642 | continue; | |
| 11643 | ||
| 11644 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11645 | if (!lgot_ents) | |
| 11646 | continue; | |
| 11647 | ||
| 11648 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11649 | locsymcount = symtab_hdr->sh_info; | |
| 11650 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11651 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11652 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11653 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11654 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11655 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11656 | { | |
| 11657 | struct got_entry *ent; | |
| 11658 | ||
| 11659 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11660 | { |
| 19e08130 AM |
11661 | unsigned int ent_size = 8; |
| 11662 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11663 | ||
| d0fae19d AM |
11664 | ent->got.offset = s->size; |
| 11665 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11666 | { |
| 19e08130 AM |
11667 | ent_size *= 2; |
| 11668 | rel_size *= 2; | |
| 11669 | } | |
| 11670 | s->size += ent_size; | |
| 11671 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11672 | { | |
| 33e44f2e | 11673 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11674 | htab->got_reli_size += rel_size; |
| 11675 | } | |
| 0e1862bb | 11676 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11677 | { |
| 11678 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11679 | srel->size += rel_size; | |
| d0fae19d AM |
11680 | } |
| 11681 | } | |
| 927be08e AM |
11682 | } |
| 11683 | } | |
| 11684 | ||
| 11685 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11686 | ||
| c72f2fb2 | 11687 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11688 | { |
| 11689 | struct got_entry *ent; | |
| 11690 | ||
| 11691 | if (!is_ppc64_elf (ibfd)) | |
| 11692 | continue; | |
| 11693 | ||
| 11694 | ent = ppc64_tlsld_got (ibfd); | |
| 11695 | if (!ent->is_indirect | |
| 11696 | && ent->got.offset != (bfd_vma) -1) | |
| 11697 | { | |
| 11698 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11699 | ent->got.offset = s->size; | |
| 11700 | s->size += 16; | |
| 0e1862bb | 11701 | if (bfd_link_pic (info)) |
| 927be08e AM |
11702 | { |
| 11703 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11704 | srel->size += sizeof (Elf64_External_Rela); | |
| 11705 | } | |
| 11706 | } | |
| 11707 | } | |
| 11708 | ||
| 33e44f2e | 11709 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11710 | if (!done_something) |
| c72f2fb2 | 11711 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11712 | { |
| 11713 | asection *got; | |
| 11714 | ||
| 11715 | if (!is_ppc64_elf (ibfd)) | |
| 11716 | continue; | |
| 11717 | ||
| 11718 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11719 | if (got != NULL) | |
| 11720 | { | |
| 11721 | done_something = got->rawsize != got->size; | |
| 11722 | if (done_something) | |
| 11723 | break; | |
| 11724 | } | |
| 11725 | } | |
| 11726 | ||
| 11727 | if (done_something) | |
| e7d1c40c | 11728 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11729 | |
| 11730 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11731 | on input sections. */ | |
| 11732 | htab->toc_bfd = NULL; | |
| 11733 | htab->toc_first_sec = NULL; | |
| 11734 | htab->second_toc_pass = TRUE; | |
| 11735 | return done_something; | |
| 11736 | } | |
| 11737 | ||
| 11738 | /* Called after second pass of multitoc partitioning. */ | |
| 11739 | ||
| 11740 | void | |
| 11741 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11742 | { | |
| 11743 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11744 | ||
| 11745 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11746 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11747 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11748 | } |
| 11749 | ||
| 9b5ecbd0 AM |
11750 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11751 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11752 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11753 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11754 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11755 | for a stub was detected. If called from the top level, a return of | |
| 11756 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11757 | |
| 11758 | static int | |
| 4ce794b7 | 11759 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11760 | { |
| 9b5ecbd0 | 11761 | int ret; |
| 70cc837d AM |
11762 | |
| 11763 | /* Mark this section as checked. */ | |
| 11764 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11765 | |
| 772119ce AM |
11766 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11767 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11768 | return 0; | |
| 11769 | ||
| eea6121a | 11770 | if (isec->size == 0) |
| 082c50f8 AM |
11771 | return 0; |
| 11772 | ||
| 4c52953f AM |
11773 | if (isec->output_section == NULL) |
| 11774 | return 0; | |
| 11775 | ||
| 4c52953f | 11776 | ret = 0; |
| 70cc837d | 11777 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11778 | { |
| 70cc837d AM |
11779 | Elf_Internal_Rela *relstart, *rel; |
| 11780 | Elf_Internal_Sym *local_syms; | |
| 11781 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11782 | |
| 70cc837d AM |
11783 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11784 | info->keep_memory); | |
| 11785 | if (relstart == NULL) | |
| 11786 | return -1; | |
| 90aecf7a | 11787 | |
| 70cc837d AM |
11788 | /* Look for branches to outside of this section. */ |
| 11789 | local_syms = NULL; | |
| 11790 | htab = ppc_hash_table (info); | |
| 11791 | if (htab == NULL) | |
| 11792 | return -1; | |
| 4c52953f | 11793 | |
| 70cc837d | 11794 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11795 | { |
| 70cc837d AM |
11796 | enum elf_ppc64_reloc_type r_type; |
| 11797 | unsigned long r_symndx; | |
| 11798 | struct elf_link_hash_entry *h; | |
| 11799 | struct ppc_link_hash_entry *eh; | |
| 11800 | Elf_Internal_Sym *sym; | |
| 11801 | asection *sym_sec; | |
| 11802 | struct _opd_sec_data *opd; | |
| 11803 | bfd_vma sym_value; | |
| 11804 | bfd_vma dest; | |
| 11805 | ||
| 11806 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11807 | if (r_type != R_PPC64_REL24 | |
| 11808 | && r_type != R_PPC64_REL14 | |
| 11809 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11810 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11811 | continue; | |
| 4c52953f | 11812 | |
| 70cc837d AM |
11813 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11814 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11815 | isec->owner)) | |
| 4c52953f | 11816 | { |
| 70cc837d AM |
11817 | ret = -1; |
| 11818 | break; | |
| 11819 | } | |
| 4c52953f | 11820 | |
| 70cc837d AM |
11821 | /* Calls to dynamic lib functions go through a plt call stub |
| 11822 | that uses r2. */ | |
| 11823 | eh = (struct ppc_link_hash_entry *) h; | |
| 11824 | if (eh != NULL | |
| 11825 | && (eh->elf.plt.plist != NULL | |
| 11826 | || (eh->oh != NULL | |
| 11827 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11828 | { | |
| 11829 | ret = 1; | |
| 11830 | break; | |
| 4c52953f AM |
11831 | } |
| 11832 | ||
| 70cc837d AM |
11833 | if (sym_sec == NULL) |
| 11834 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11835 | continue; |
| 4c52953f | 11836 | |
| 70cc837d AM |
11837 | /* Assume branches to other sections not included in the |
| 11838 | link need stubs too, to cover -R and absolute syms. */ | |
| 11839 | if (sym_sec->output_section == NULL) | |
| 11840 | { | |
| 11841 | ret = 1; | |
| 11842 | break; | |
| 11843 | } | |
| 4c52953f | 11844 | |
| 70cc837d AM |
11845 | if (h == NULL) |
| 11846 | sym_value = sym->st_value; | |
| 11847 | else | |
| 11848 | { | |
| 11849 | if (h->root.type != bfd_link_hash_defined | |
| 11850 | && h->root.type != bfd_link_hash_defweak) | |
| 11851 | abort (); | |
| 11852 | sym_value = h->root.u.def.value; | |
| 11853 | } | |
| 11854 | sym_value += rel->r_addend; | |
| 4c52953f | 11855 | |
| 70cc837d AM |
11856 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11857 | opd = get_opd_info (sym_sec); | |
| 11858 | if (opd != NULL) | |
| 11859 | { | |
| 11860 | if (h == NULL && opd->adjust != NULL) | |
| 11861 | { | |
| 11862 | long adjust; | |
| 4c52953f | 11863 | |
| 92a9c616 | 11864 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11865 | if (adjust == -1) |
| 11866 | /* Assume deleted functions won't ever be called. */ | |
| 11867 | continue; | |
| 11868 | sym_value += adjust; | |
| 11869 | } | |
| 4c52953f | 11870 | |
| aef36ac1 AM |
11871 | dest = opd_entry_value (sym_sec, sym_value, |
| 11872 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11873 | if (dest == (bfd_vma) -1) |
| 11874 | continue; | |
| 11875 | } | |
| 11876 | else | |
| 11877 | dest = (sym_value | |
| 11878 | + sym_sec->output_offset | |
| 11879 | + sym_sec->output_section->vma); | |
| 4c52953f | 11880 | |
| 70cc837d AM |
11881 | /* Ignore branch to self. */ |
| 11882 | if (sym_sec == isec) | |
| 11883 | continue; | |
| 4c52953f | 11884 | |
| 70cc837d AM |
11885 | /* If the called function uses the toc, we need a stub. */ |
| 11886 | if (sym_sec->has_toc_reloc | |
| 11887 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11888 | { |
| 70cc837d | 11889 | ret = 1; |
| 4c52953f AM |
11890 | break; |
| 11891 | } | |
| 70cc837d AM |
11892 | |
| 11893 | /* Assume any branch that needs a long branch stub might in fact | |
| 11894 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11895 | else if (dest - (isec->output_offset | |
| 11896 | + isec->output_section->vma | |
| 6911b7dc AM |
11897 | + rel->r_offset) + (1 << 25) |
| 11898 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11899 | ? h->other | |
| 11900 | : sym->st_other)) | |
| 4c52953f | 11901 | { |
| 70cc837d AM |
11902 | ret = 1; |
| 11903 | break; | |
| 11904 | } | |
| 11905 | ||
| 11906 | /* If calling back to a section in the process of being | |
| 11907 | tested, we can't say for sure that no toc adjusting stubs | |
| 11908 | are needed, so don't return zero. */ | |
| 11909 | else if (sym_sec->call_check_in_progress) | |
| 11910 | ret = 2; | |
| 11911 | ||
| 11912 | /* Branches to another section that itself doesn't have any TOC | |
| 11913 | references are OK. Recursively call ourselves to check. */ | |
| 11914 | else if (!sym_sec->call_check_done) | |
| 11915 | { | |
| 11916 | int recur; | |
| 11917 | ||
| 11918 | /* Mark current section as indeterminate, so that other | |
| 11919 | sections that call back to current won't be marked as | |
| 11920 | known. */ | |
| 11921 | isec->call_check_in_progress = 1; | |
| 11922 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11923 | isec->call_check_in_progress = 0; | |
| 11924 | ||
| 4c52953f AM |
11925 | if (recur != 0) |
| 11926 | { | |
| 70cc837d AM |
11927 | ret = recur; |
| 11928 | if (recur != 2) | |
| 11929 | break; | |
| 4c52953f AM |
11930 | } |
| 11931 | } | |
| 4c52953f | 11932 | } |
| 70cc837d AM |
11933 | |
| 11934 | if (local_syms != NULL | |
| 11935 | && (elf_symtab_hdr (isec->owner).contents | |
| 11936 | != (unsigned char *) local_syms)) | |
| 11937 | free (local_syms); | |
| 11938 | if (elf_section_data (isec)->relocs != relstart) | |
| 11939 | free (relstart); | |
| 9b5ecbd0 AM |
11940 | } |
| 11941 | ||
| 70cc837d AM |
11942 | if ((ret & 1) == 0 |
| 11943 | && isec->map_head.s != NULL | |
| 11944 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11945 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11946 | { | |
| 11947 | if (isec->map_head.s->has_toc_reloc | |
| 11948 | || isec->map_head.s->makes_toc_func_call) | |
| 11949 | ret = 1; | |
| 11950 | else if (!isec->map_head.s->call_check_done) | |
| 11951 | { | |
| 11952 | int recur; | |
| 11953 | isec->call_check_in_progress = 1; | |
| 11954 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11955 | isec->call_check_in_progress = 0; | |
| 11956 | if (recur != 0) | |
| 11957 | ret = recur; | |
| 11958 | } | |
| 11959 | } | |
| 11960 | ||
| 11961 | if (ret == 1) | |
| 11962 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11963 | |
| 9b5ecbd0 AM |
11964 | return ret; |
| 11965 | } | |
| 11966 | ||
| 721956f4 AM |
11967 | /* The linker repeatedly calls this function for each input section, |
| 11968 | in the order that input sections are linked into output sections. | |
| 11969 | Build lists of input sections to determine groupings between which | |
| 11970 | we may insert linker stubs. */ | |
| 11971 | ||
| 9b5ecbd0 | 11972 | bfd_boolean |
| 4ce794b7 | 11973 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11974 | { |
| 11975 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11976 | ||
| 4dfe6ac6 NC |
11977 | if (htab == NULL) |
| 11978 | return FALSE; | |
| 11979 | ||
| 734b6cf9 | 11980 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 11981 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 11982 | { |
| 3d6f9012 AM |
11983 | /* This happens to make the list in reverse order, |
| 11984 | which is what we want. */ | |
| 6f20ed8a AM |
11985 | htab->sec_info[isec->id].u.list |
| 11986 | = htab->sec_info[isec->output_section->id].u.list; | |
| 11987 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 11988 | } |
| ad8e1ba5 | 11989 | |
| 4c52953f | 11990 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11991 | { |
| 8b974ba3 AM |
11992 | /* Analyse sections that aren't already flagged as needing a |
| 11993 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 11994 | .fixup contains branches, but only back to the function that | |
| 11995 | hit an exception. */ | |
| 11996 | if (!(isec->has_toc_reloc | |
| 11997 | || (isec->flags & SEC_CODE) == 0 | |
| 11998 | || strcmp (isec->name, ".fixup") == 0 | |
| 11999 | || isec->call_check_done)) | |
| 12000 | { | |
| 12001 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12002 | return FALSE; |
| 8b974ba3 AM |
12003 | } |
| 12004 | /* Make all sections use the TOC assigned for this object file. | |
| 12005 | This will be wrong for pasted sections; We fix that in | |
| 12006 | check_pasted_section(). */ | |
| 12007 | if (elf_gp (isec->owner) != 0) | |
| 12008 | htab->toc_curr = elf_gp (isec->owner); | |
| 12009 | } | |
| 12010 | ||
| 6f20ed8a | 12011 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12012 | return TRUE; |
| 721956f4 AM |
12013 | } |
| 12014 | ||
| 70cc837d AM |
12015 | /* Check that all .init and .fini sections use the same toc, if they |
| 12016 | have toc relocs. */ | |
| 12017 | ||
| 12018 | static bfd_boolean | |
| 12019 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12020 | { | |
| 12021 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12022 | ||
| 12023 | if (o != NULL) | |
| 12024 | { | |
| 12025 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12026 | bfd_vma toc_off = 0; | |
| 12027 | asection *i; | |
| 12028 | ||
| 12029 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12030 | if (i->has_toc_reloc) | |
| 12031 | { | |
| 12032 | if (toc_off == 0) | |
| 6f20ed8a AM |
12033 | toc_off = htab->sec_info[i->id].toc_off; |
| 12034 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12035 | return FALSE; |
| 12036 | } | |
| 6683a28d AM |
12037 | |
| 12038 | if (toc_off == 0) | |
| 12039 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12040 | if (i->makes_toc_func_call) | |
| 12041 | { | |
| 6f20ed8a | 12042 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12043 | break; |
| 12044 | } | |
| 12045 | ||
| 70cc837d AM |
12046 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12047 | if (toc_off != 0) | |
| 12048 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12049 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12050 | } |
| 12051 | return TRUE; | |
| 12052 | } | |
| 12053 | ||
| 12054 | bfd_boolean | |
| 12055 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12056 | { | |
| 12057 | return (check_pasted_section (info, ".init") | |
| 12058 | & check_pasted_section (info, ".fini")); | |
| 12059 | } | |
| 12060 | ||
| 721956f4 AM |
12061 | /* See whether we can group stub sections together. Grouping stub |
| 12062 | sections may result in fewer stubs. More importantly, we need to | |
| 12063 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12064 | .fini output sections respectively, because glibc splits the | |
| 12065 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12066 | the middle of a function is not a good idea. */ | |
| 12067 | ||
| 6f20ed8a AM |
12068 | static bfd_boolean |
| 12069 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12070 | bfd_size_type stub_group_size, |
| 12071 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12072 | { |
| 6f20ed8a AM |
12073 | struct ppc_link_hash_table *htab; |
| 12074 | asection *osec; | |
| 7c8fe5c4 AM |
12075 | bfd_boolean suppress_size_errors; |
| 12076 | ||
| 6f20ed8a AM |
12077 | htab = ppc_hash_table (info); |
| 12078 | if (htab == NULL) | |
| 12079 | return FALSE; | |
| 12080 | ||
| 7c8fe5c4 | 12081 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12082 | if (stub_group_size == 1) |
| 12083 | { | |
| 12084 | /* Default values. */ | |
| 12085 | if (stubs_always_before_branch) | |
| 09f92717 | 12086 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12087 | else |
| 09f92717 | 12088 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12089 | suppress_size_errors = TRUE; |
| 12090 | } | |
| 12091 | ||
| 6f20ed8a | 12092 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12093 | { |
| 6f20ed8a AM |
12094 | asection *tail; |
| 12095 | ||
| 12096 | if (osec->id >= htab->sec_info_arr_size) | |
| 12097 | continue; | |
| 12098 | ||
| 12099 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12100 | while (tail != NULL) |
| 721956f4 | 12101 | { |
| 734b6cf9 AM |
12102 | asection *curr; |
| 12103 | asection *prev; | |
| 12104 | bfd_size_type total; | |
| 12105 | bfd_boolean big_sec; | |
| 12106 | bfd_vma curr_toc; | |
| 6f20ed8a | 12107 | struct map_stub *group; |
| 09f92717 | 12108 | bfd_size_type group_size; |
| 734b6cf9 AM |
12109 | |
| 12110 | curr = tail; | |
| eea6121a | 12111 | total = tail->size; |
| 09f92717 AM |
12112 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12113 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12114 | ? stub_group_size >> 10 : stub_group_size); | |
| 12115 | ||
| 12116 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12117 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12118 | /* xgettext:c-format */ |
| 4eca0228 AM |
12119 | _bfd_error_handler (_("%B section %A exceeds stub group size"), |
| 12120 | tail->owner, tail); | |
| 6f20ed8a | 12121 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12122 | |
| 6f20ed8a | 12123 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12124 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12125 | < (ppc64_elf_section_data (prev) != NULL |
| 12126 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12127 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12128 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12129 | curr = prev; |
| 12130 | ||
| 12131 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12132 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12133 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12134 | group_size, in which case we may be toast.) We should |
| 12135 | really be keeping track of the total size of stubs added | |
| 12136 | here, as stubs contribute to the final output section | |
| 12137 | size. That's a little tricky, and this way will only | |
| 12138 | break if stubs added make the total size more than 2^25, | |
| 12139 | ie. for the default stub_group_size, if stubs total more | |
| 12140 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12141 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12142 | if (group == NULL) | |
| 12143 | return FALSE; | |
| 12144 | group->link_sec = curr; | |
| 12145 | group->stub_sec = NULL; | |
| a4b6fadd AM |
12146 | group->needs_save_res = 0; |
| 12147 | group->next = htab->group; | |
| 12148 | htab->group = group; | |
| 734b6cf9 | 12149 | do |
| 721956f4 | 12150 | { |
| 6f20ed8a | 12151 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12152 | /* Set up this stub group. */ |
| 6f20ed8a | 12153 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12154 | } |
| 734b6cf9 AM |
12155 | while (tail != curr && (tail = prev) != NULL); |
| 12156 | ||
| 09f92717 | 12157 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12158 | bytes before the stub section can be handled by it too. |
| 12159 | Don't do this if we have a really large section after the | |
| 12160 | stubs, as adding more stubs increases the chance that | |
| 12161 | branches may not reach into the stub section. */ | |
| 12162 | if (!stubs_always_before_branch && !big_sec) | |
| 12163 | { | |
| 12164 | total = 0; | |
| 12165 | while (prev != NULL | |
| 12166 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12167 | < (ppc64_elf_section_data (prev) != NULL |
| 12168 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12169 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12170 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12171 | { |
| 12172 | tail = prev; | |
| 6f20ed8a AM |
12173 | prev = htab->sec_info[tail->id].u.list; |
| 12174 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12175 | } |
| 12176 | } | |
| 12177 | tail = prev; | |
| 721956f4 AM |
12178 | } |
| 12179 | } | |
| 6f20ed8a | 12180 | return TRUE; |
| 721956f4 AM |
12181 | } |
| 12182 | ||
| 58d180e8 AM |
12183 | static const unsigned char glink_eh_frame_cie[] = |
| 12184 | { | |
| 12185 | 0, 0, 0, 16, /* length. */ | |
| 12186 | 0, 0, 0, 0, /* id. */ | |
| 12187 | 1, /* CIE version. */ | |
| 12188 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12189 | 4, /* Code alignment. */ | |
| 12190 | 0x78, /* Data alignment. */ | |
| 12191 | 65, /* RA reg. */ | |
| 12192 | 1, /* Augmentation size. */ | |
| 12193 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
12194 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 12195 | 0, 0, 0, 0 | |
| 58d180e8 AM |
12196 | }; |
| 12197 | ||
| d969d15f AM |
12198 | /* Stripping output sections is normally done before dynamic section |
| 12199 | symbols have been allocated. This function is called later, and | |
| 12200 | handles cases like htab->brlt which is mapped to its own output | |
| 12201 | section. */ | |
| 12202 | ||
| 12203 | static void | |
| 12204 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12205 | { | |
| 12206 | if (isec->size == 0 | |
| 12207 | && isec->output_section->size == 0 | |
| 53d8967a | 12208 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12209 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12210 | isec->output_section) | |
| 12211 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12212 | { | |
| 12213 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12214 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12215 | info->output_bfd->section_count--; | |
| 12216 | } | |
| 12217 | } | |
| 12218 | ||
| 721956f4 AM |
12219 | /* Determine and set the size of the stub section for a final link. |
| 12220 | ||
| 12221 | The basic idea here is to examine all the relocations looking for | |
| 12222 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12223 | instruction. */ | |
| 12224 | ||
| b34976b6 | 12225 | bfd_boolean |
| e7d1c40c | 12226 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12227 | { |
| 12228 | bfd_size_type stub_group_size; | |
| b34976b6 | 12229 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12230 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12231 | ||
| 4dfe6ac6 NC |
12232 | if (htab == NULL) |
| 12233 | return FALSE; | |
| 12234 | ||
| 0e1862bb | 12235 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12236 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12237 | if (!htab->opd_abi) |
| e7d1c40c AM |
12238 | htab->params->plt_thread_safe = 0; |
| 12239 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12240 | { |
| e2458743 | 12241 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12242 | { |
| 12243 | "pthread_create", | |
| 12244 | /* libstdc++ */ | |
| 12245 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12246 | /* librt */ | |
| 12247 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12248 | "mq_notify", "create_timer", | |
| 12249 | /* libanl */ | |
| 12250 | "getaddrinfo_a", | |
| 12251 | /* libgomp */ | |
| 2300b5a1 | 12252 | "GOMP_parallel", |
| 794e51c0 | 12253 | "GOMP_parallel_start", |
| 2300b5a1 | 12254 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12255 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12256 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12257 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12258 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12259 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12260 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12261 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12262 | "GOMP_parallel_sections", |
| 68ffbac6 | 12263 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12264 | /* libgo */ |
| 12265 | "__go_go", | |
| 794e51c0 AM |
12266 | }; |
| 12267 | unsigned i; | |
| 12268 | ||
| a4b6fadd | 12269 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12270 | { |
| 12271 | struct elf_link_hash_entry *h; | |
| 12272 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12273 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12274 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12275 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12276 | break; |
| 12277 | } | |
| 12278 | } | |
| e7d1c40c AM |
12279 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12280 | if (htab->params->group_size < 0) | |
| 12281 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12282 | else |
| e7d1c40c | 12283 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12284 | |
| 6f20ed8a AM |
12285 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12286 | return FALSE; | |
| 721956f4 | 12287 | |
| c9301e31 AM |
12288 | #define STUB_SHRINK_ITER 20 |
| 12289 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12290 | exit on a stub section shrinking. This is to break out of a | |
| 12291 | pathological case where adding stubs on one iteration decreases | |
| 12292 | section gaps (perhaps due to alignment), which then requires | |
| 12293 | fewer or smaller stubs on the next iteration. */ | |
| 12294 | ||
| 721956f4 AM |
12295 | while (1) |
| 12296 | { | |
| 12297 | bfd *input_bfd; | |
| 12298 | unsigned int bfd_indx; | |
| a4b6fadd | 12299 | struct map_stub *group; |
| 721956f4 | 12300 | asection *stub_sec; |
| 721956f4 AM |
12301 | |
| 12302 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12303 | |
| 12304 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12305 | input_bfd != NULL; | |
| c72f2fb2 | 12306 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12307 | { |
| 12308 | Elf_Internal_Shdr *symtab_hdr; | |
| 12309 | asection *section; | |
| 6cdc0ccc | 12310 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12311 | |
| 0c8d6e5c | 12312 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12313 | continue; |
| 12314 | ||
| 721956f4 | 12315 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12316 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12317 | if (symtab_hdr->sh_info == 0) |
| 12318 | continue; | |
| 12319 | ||
| 721956f4 AM |
12320 | /* Walk over each section attached to the input bfd. */ |
| 12321 | for (section = input_bfd->sections; | |
| 12322 | section != NULL; | |
| 12323 | section = section->next) | |
| 12324 | { | |
| 721956f4 | 12325 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12326 | |
| 12327 | /* If there aren't any relocs, then there's nothing more | |
| 12328 | to do. */ | |
| 12329 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12330 | || (section->flags & SEC_ALLOC) == 0 |
| 12331 | || (section->flags & SEC_LOAD) == 0 | |
| 12332 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12333 | || section->reloc_count == 0) |
| 12334 | continue; | |
| 12335 | ||
| 12336 | /* If this section is a link-once section that will be | |
| 12337 | discarded, then don't create any stubs. */ | |
| 12338 | if (section->output_section == NULL | |
| 927be08e | 12339 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12340 | continue; |
| 12341 | ||
| 1e2f5b6e AM |
12342 | /* Get the relocs. */ |
| 12343 | internal_relocs | |
| 4ce794b7 | 12344 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12345 | info->keep_memory); |
| 721956f4 | 12346 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12347 | goto error_ret_free_local; |
| 721956f4 AM |
12348 | |
| 12349 | /* Now examine each relocation. */ | |
| 12350 | irela = internal_relocs; | |
| 12351 | irelaend = irela + section->reloc_count; | |
| 12352 | for (; irela < irelaend; irela++) | |
| 12353 | { | |
| 4ce794b7 AM |
12354 | enum elf_ppc64_reloc_type r_type; |
| 12355 | unsigned int r_indx; | |
| 721956f4 AM |
12356 | enum ppc_stub_type stub_type; |
| 12357 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12358 | asection *sym_sec, *code_sec; |
| e054468f | 12359 | bfd_vma sym_value, code_value; |
| 721956f4 | 12360 | bfd_vma destination; |
| 6911b7dc | 12361 | unsigned long local_off; |
| 8843416a | 12362 | bfd_boolean ok_dest; |
| 721956f4 | 12363 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12364 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12365 | struct elf_link_hash_entry *h; |
| 12366 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12367 | char *stub_name; |
| 12368 | const asection *id_sec; | |
| 74f0fb50 | 12369 | struct _opd_sec_data *opd; |
| e054468f | 12370 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12371 | |
| 12372 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12373 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12374 | ||
| 4ce794b7 | 12375 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12376 | { |
| 12377 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12378 | goto error_ret_free_internal; |
| 721956f4 AM |
12379 | } |
| 12380 | ||
| 12381 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12382 | if (r_type != R_PPC64_REL24 |
| 12383 | && r_type != R_PPC64_REL14 | |
| 12384 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12385 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12386 | continue; |
| 12387 | ||
| 12388 | /* Now determine the call target, its name, value, | |
| 12389 | section. */ | |
| 411e1bfb AM |
12390 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12391 | r_indx, input_bfd)) | |
| 12392 | goto error_ret_free_internal; | |
| 12393 | hash = (struct ppc_link_hash_entry *) h; | |
| 12394 | ||
| 8843416a | 12395 | ok_dest = FALSE; |
| 8387904d | 12396 | fdh = NULL; |
| 7fe2b9a6 | 12397 | sym_value = 0; |
| 411e1bfb | 12398 | if (hash == NULL) |
| 721956f4 | 12399 | { |
| 411e1bfb | 12400 | sym_value = sym->st_value; |
| c27b8c2a AM |
12401 | if (sym_sec != NULL |
| 12402 | && sym_sec->output_section != NULL) | |
| 12403 | ok_dest = TRUE; | |
| 721956f4 | 12404 | } |
| 7fe2b9a6 AM |
12405 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12406 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12407 | { | |
| 12408 | sym_value = hash->elf.root.u.def.value; | |
| 12409 | if (sym_sec->output_section != NULL) | |
| 12410 | ok_dest = TRUE; | |
| 12411 | } | |
| 12412 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12413 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12414 | { |
| 99877b66 | 12415 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12416 | use the func descriptor sym instead if it is |
| 12417 | defined. */ | |
| ceb1f1ef | 12418 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 12419 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 12420 | { |
| 8387904d AM |
12421 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12422 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12423 | { | |
| 12424 | sym_sec = fdh->elf.root.u.def.section; | |
| 12425 | sym_value = fdh->elf.root.u.def.value; | |
| 12426 | if (sym_sec->output_section != NULL) | |
| 12427 | ok_dest = TRUE; | |
| 12428 | } | |
| 99877b66 AM |
12429 | else |
| 12430 | fdh = NULL; | |
| 8387904d | 12431 | } |
| 7fe2b9a6 AM |
12432 | } |
| 12433 | else | |
| 12434 | { | |
| 12435 | bfd_set_error (bfd_error_bad_value); | |
| 12436 | goto error_ret_free_internal; | |
| 721956f4 AM |
12437 | } |
| 12438 | ||
| 8843416a | 12439 | destination = 0; |
| 6911b7dc | 12440 | local_off = 0; |
| 8843416a AM |
12441 | if (ok_dest) |
| 12442 | { | |
| 12443 | sym_value += irela->r_addend; | |
| 12444 | destination = (sym_value | |
| 12445 | + sym_sec->output_offset | |
| 12446 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12447 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12448 | ? hash->elf.other | |
| 12449 | : sym->st_other); | |
| 8843416a AM |
12450 | } |
| 12451 | ||
| 8387904d | 12452 | code_sec = sym_sec; |
| e054468f | 12453 | code_value = sym_value; |
| 74f0fb50 AM |
12454 | opd = get_opd_info (sym_sec); |
| 12455 | if (opd != NULL) | |
| 8387904d AM |
12456 | { |
| 12457 | bfd_vma dest; | |
| 12458 | ||
| 74f0fb50 | 12459 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12460 | { |
| 51aecdc5 | 12461 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12462 | if (adjust == -1) |
| 12463 | continue; | |
| e054468f | 12464 | code_value += adjust; |
| 8387904d AM |
12465 | sym_value += adjust; |
| 12466 | } | |
| 12467 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12468 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12469 | if (dest != (bfd_vma) -1) |
| 12470 | { | |
| 12471 | destination = dest; | |
| 12472 | if (fdh != NULL) | |
| 12473 | { | |
| 12474 | /* Fixup old ABI sym to point at code | |
| 12475 | entry. */ | |
| 99877b66 | 12476 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12477 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12478 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12479 | } |
| 12480 | } | |
| 12481 | } | |
| 12482 | ||
| 721956f4 | 12483 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12484 | plt_ent = NULL; |
| 721956f4 | 12485 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12486 | &plt_ent, destination, |
| 12487 | local_off); | |
| ad8e1ba5 AM |
12488 | |
| 12489 | if (stub_type != ppc_stub_plt_call) | |
| 12490 | { | |
| 12491 | /* Check whether we need a TOC adjusting stub. | |
| 12492 | Since the linker pastes together pieces from | |
| 12493 | different object files when creating the | |
| 12494 | _init and _fini functions, it may be that a | |
| 12495 | call to what looks like a local sym is in | |
| 12496 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12497 | if (code_sec != NULL |
| 12498 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12499 | && (htab->sec_info[code_sec->id].toc_off |
| 12500 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12501 | && (code_sec->has_toc_reloc |
| 12502 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12503 | stub_type = ppc_stub_long_branch_r2off; |
| 12504 | } | |
| 12505 | ||
| 721956f4 AM |
12506 | if (stub_type == ppc_stub_none) |
| 12507 | continue; | |
| 12508 | ||
| 411e1bfb AM |
12509 | /* __tls_get_addr calls might be eliminated. */ |
| 12510 | if (stub_type != ppc_stub_plt_call | |
| 12511 | && hash != NULL | |
| 8387904d AM |
12512 | && (hash == htab->tls_get_addr |
| 12513 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12514 | && section->has_tls_reloc |
| 12515 | && irela != internal_relocs) | |
| 12516 | { | |
| 12517 | /* Get tls info. */ | |
| f961d9dd | 12518 | unsigned char *tls_mask; |
| 411e1bfb | 12519 | |
| 3a71aa26 | 12520 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12521 | irela - 1, input_bfd)) |
| 12522 | goto error_ret_free_internal; | |
| e7b938ca | 12523 | if (*tls_mask != 0) |
| 411e1bfb AM |
12524 | continue; |
| 12525 | } | |
| 12526 | ||
| 3b421ab3 AM |
12527 | if (stub_type == ppc_stub_plt_call |
| 12528 | && irela + 1 < irelaend | |
| 12529 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12530 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12531 | { | |
| 12532 | if (!tocsave_find (htab, INSERT, | |
| 12533 | &local_syms, irela + 1, input_bfd)) | |
| 12534 | goto error_ret_free_internal; | |
| 12535 | } | |
| 12536 | else if (stub_type == ppc_stub_plt_call) | |
| 12537 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12538 | |
| 721956f4 | 12539 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12540 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12541 | |
| 12542 | /* Get the name of this stub. */ | |
| 12543 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12544 | if (!stub_name) | |
| 12545 | goto error_ret_free_internal; | |
| 12546 | ||
| 12547 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12548 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12549 | if (stub_entry != NULL) |
| 12550 | { | |
| 12551 | /* The proper stub has already been created. */ | |
| 12552 | free (stub_name); | |
| 794e51c0 AM |
12553 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12554 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12555 | continue; |
| 12556 | } | |
| 12557 | ||
| 25f53a85 | 12558 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12559 | if (stub_entry == NULL) |
| 12560 | { | |
| 12561 | free (stub_name); | |
| 6cdc0ccc AM |
12562 | error_ret_free_internal: |
| 12563 | if (elf_section_data (section)->relocs == NULL) | |
| 12564 | free (internal_relocs); | |
| 12565 | error_ret_free_local: | |
| 12566 | if (local_syms != NULL | |
| 12567 | && (symtab_hdr->contents | |
| 12568 | != (unsigned char *) local_syms)) | |
| 12569 | free (local_syms); | |
| b34976b6 | 12570 | return FALSE; |
| 721956f4 AM |
12571 | } |
| 12572 | ||
| ad8e1ba5 | 12573 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12574 | if (stub_type != ppc_stub_plt_call |
| 12575 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12576 | { |
| 12577 | stub_entry->target_value = code_value; | |
| 12578 | stub_entry->target_section = code_sec; | |
| 12579 | } | |
| 12580 | else | |
| 12581 | { | |
| 12582 | stub_entry->target_value = sym_value; | |
| 12583 | stub_entry->target_section = sym_sec; | |
| 12584 | } | |
| 721956f4 | 12585 | stub_entry->h = hash; |
| e054468f | 12586 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12587 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12588 | |
| 12589 | if (stub_entry->h != NULL) | |
| 12590 | htab->stub_globals += 1; | |
| 721956f4 AM |
12591 | } |
| 12592 | ||
| 12593 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12594 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12595 | free (internal_relocs); |
| 721956f4 | 12596 | } |
| 6cdc0ccc AM |
12597 | |
| 12598 | if (local_syms != NULL | |
| 12599 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12600 | { | |
| 12601 | if (!info->keep_memory) | |
| 12602 | free (local_syms); | |
| 12603 | else | |
| 12604 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12605 | } | |
| 721956f4 AM |
12606 | } |
| 12607 | ||
| 5c3dead3 | 12608 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12609 | stub sections. */ |
| e7d1c40c | 12610 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12611 | stub_sec != NULL; |
| 12612 | stub_sec = stub_sec->next) | |
| e717da7e | 12613 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12614 | { |
| ea3d7d1c AM |
12615 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12616 | || stub_sec->rawsize < stub_sec->size) | |
| 12617 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12618 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12619 | stub_sec->size = 0; |
| 12620 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12621 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12622 | } |
| eea6121a AM |
12623 | |
| 12624 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12625 | htab->brlt->reloc_count = 0; |
| 12626 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12627 | if (htab->relbrlt != NULL) |
| eea6121a | 12628 | htab->relbrlt->size = 0; |
| 721956f4 | 12629 | |
| 63bc6f6c | 12630 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12631 | |
| a4b6fadd AM |
12632 | for (group = htab->group; group != NULL; group = group->next) |
| 12633 | if (group->needs_save_res) | |
| 12634 | group->stub_sec->size += htab->sfpr->size; | |
| 12635 | ||
| 176a0d42 AM |
12636 | if (info->emitrelocations |
| 12637 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12638 | { | |
| 12639 | htab->glink->reloc_count = 1; | |
| 12640 | htab->glink->flags |= SEC_RELOC; | |
| 12641 | } | |
| 12642 | ||
| 58d180e8 AM |
12643 | if (htab->glink_eh_frame != NULL |
| 12644 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12645 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12646 | { |
| 4bbe044a | 12647 | size_t size = 0, align; |
| 58d180e8 | 12648 | |
| e7d1c40c | 12649 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12650 | stub_sec != NULL; |
| 12651 | stub_sec = stub_sec->next) | |
| 12652 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12653 | size += 24; |
| 58d180e8 AM |
12654 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12655 | size += 24; | |
| 12656 | if (size != 0) | |
| 12657 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12658 | align = 1; |
| 12659 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12660 | align -= 1; | |
| 12661 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12662 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12663 | htab->glink_eh_frame->size = size; | |
| 12664 | } | |
| 12665 | ||
| e7d1c40c AM |
12666 | if (htab->params->plt_stub_align != 0) |
| 12667 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12668 | stub_sec != NULL; |
| 12669 | stub_sec = stub_sec->next) | |
| 12670 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12671 | stub_sec->size = ((stub_sec->size |
| 12672 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 12673 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 12674 | |
| e7d1c40c | 12675 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12676 | stub_sec != NULL; |
| 12677 | stub_sec = stub_sec->next) | |
| 12678 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| c9301e31 AM |
12679 | && stub_sec->rawsize != stub_sec->size |
| 12680 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 12681 | || stub_sec->rawsize < stub_sec->size)) | |
| 5c3dead3 AM |
12682 | break; |
| 12683 | ||
| 58d180e8 AM |
12684 | if (stub_sec == NULL |
| 12685 | && (htab->glink_eh_frame == NULL | |
| 12686 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12687 | break; |
| 12688 | ||
| 721956f4 | 12689 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12690 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12691 | } |
| 12692 | ||
| da44f4e5 AM |
12693 | if (htab->glink_eh_frame != NULL |
| 12694 | && htab->glink_eh_frame->size != 0) | |
| 12695 | { | |
| 12696 | bfd_vma val; | |
| 12697 | bfd_byte *p, *last_fde; | |
| 12698 | size_t last_fde_len, size, align, pad; | |
| 12699 | asection *stub_sec; | |
| 12700 | ||
| 12701 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12702 | if (p == NULL) | |
| 12703 | return FALSE; | |
| 12704 | htab->glink_eh_frame->contents = p; | |
| 12705 | last_fde = p; | |
| 12706 | ||
| 12707 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12708 | /* CIE length (rewrite in case little-endian). */ | |
| 12709 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12710 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12711 | p += sizeof (glink_eh_frame_cie); | |
| 12712 | ||
| 12713 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12714 | stub_sec != NULL; | |
| 12715 | stub_sec = stub_sec->next) | |
| 12716 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12717 | { | |
| 12718 | last_fde = p; | |
| 12719 | last_fde_len = 20; | |
| 12720 | /* FDE length. */ | |
| 12721 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12722 | p += 4; | |
| 12723 | /* CIE pointer. */ | |
| 12724 | val = p - htab->glink_eh_frame->contents; | |
| 12725 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12726 | p += 4; | |
| 12727 | /* Offset to stub section, written later. */ | |
| 12728 | p += 4; | |
| 12729 | /* stub section size. */ | |
| 12730 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12731 | p += 4; | |
| 12732 | /* Augmentation. */ | |
| 12733 | p += 1; | |
| 12734 | /* Pad. */ | |
| 12735 | p += 7; | |
| 12736 | } | |
| 12737 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12738 | { | |
| 12739 | last_fde = p; | |
| 12740 | last_fde_len = 20; | |
| 12741 | /* FDE length. */ | |
| 12742 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12743 | p += 4; | |
| 12744 | /* CIE pointer. */ | |
| 12745 | val = p - htab->glink_eh_frame->contents; | |
| 12746 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12747 | p += 4; | |
| 12748 | /* Offset to .glink, written later. */ | |
| 12749 | p += 4; | |
| 12750 | /* .glink size. */ | |
| 12751 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12752 | p += 4; | |
| 12753 | /* Augmentation. */ | |
| 12754 | p += 1; | |
| 12755 | ||
| 12756 | *p++ = DW_CFA_advance_loc + 1; | |
| 12757 | *p++ = DW_CFA_register; | |
| 12758 | *p++ = 65; | |
| 9f08fa5c | 12759 | *p++ = htab->opd_abi ? 12 : 0; |
| da44f4e5 AM |
12760 | *p++ = DW_CFA_advance_loc + 4; |
| 12761 | *p++ = DW_CFA_restore_extended; | |
| 12762 | *p++ = 65; | |
| 12763 | } | |
| 12764 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12765 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12766 | zero padding will be seen as a terminator. */ | |
| 12767 | size = p - htab->glink_eh_frame->contents; | |
| 12768 | align = 1; | |
| 12769 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12770 | align -= 1; | |
| 12771 | pad = ((size + align) & ~align) - size; | |
| 12772 | htab->glink_eh_frame->size = size + pad; | |
| 12773 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12774 | } | |
| 12775 | ||
| d969d15f AM |
12776 | maybe_strip_output (info, htab->brlt); |
| 12777 | if (htab->glink_eh_frame != NULL) | |
| 12778 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12779 | |
| b34976b6 | 12780 | return TRUE; |
| 721956f4 AM |
12781 | } |
| 12782 | ||
| 12783 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12784 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12785 | |
| 805fc799 | 12786 | bfd_vma |
| 1c865ab2 | 12787 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12788 | { |
| 805fc799 | 12789 | asection *s; |
| a27e685f | 12790 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12791 | |
| 43417696 AM |
12792 | if (info != NULL) |
| 12793 | { | |
| 12794 | struct elf_link_hash_entry *h; | |
| 12795 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12796 | ||
| 12797 | if (is_elf_hash_table (htab) | |
| 12798 | && htab->hgot != NULL) | |
| 12799 | h = htab->hgot; | |
| 12800 | else | |
| 12801 | { | |
| 12802 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12803 | if (is_elf_hash_table (htab)) | |
| 12804 | htab->hgot = h; | |
| 12805 | } | |
| 12806 | if (h != NULL | |
| 12807 | && h->root.type == bfd_link_hash_defined | |
| 12808 | && !h->root.linker_def | |
| 12809 | && (!is_elf_hash_table (htab) | |
| 12810 | || h->def_regular)) | |
| 12811 | { | |
| 12812 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12813 | + h->root.u.def.section->output_offset | |
| 12814 | + h->root.u.def.section->output_section->vma); | |
| 12815 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12816 | return TOCstart; | |
| 12817 | } | |
| 12818 | } | |
| 12819 | ||
| 805fc799 AM |
12820 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12821 | order. The TOC starts where the first of these sections starts. */ | |
| 12822 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12823 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12824 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12825 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12826 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12827 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12828 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12829 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12830 | { |
| 12831 | /* This may happen for | |
| 12832 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12833 | .toc directive | |
| 12834 | o bad linker script | |
| 12835 | o --gc-sections and empty TOC sections | |
| 12836 | ||
| 12837 | FIXME: Warn user? */ | |
| 12838 | ||
| 12839 | /* Look for a likely section. We probably won't even be | |
| 12840 | using TOCstart. */ | |
| 12841 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12842 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12843 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12844 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12845 | break; | |
| 721956f4 | 12846 | if (s == NULL) |
| 805fc799 | 12847 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12848 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12849 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12850 | break; | |
| 721956f4 | 12851 | if (s == NULL) |
| 805fc799 | 12852 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12853 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12854 | == SEC_ALLOC) | |
| 805fc799 | 12855 | break; |
| 721956f4 | 12856 | if (s == NULL) |
| 805fc799 | 12857 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12858 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12859 | break; |
| 12860 | } | |
| 721956f4 | 12861 | |
| 805fc799 AM |
12862 | TOCstart = 0; |
| 12863 | if (s != NULL) | |
| 12864 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12865 | |
| a27e685f AM |
12866 | /* Force alignment. */ |
| 12867 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12868 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12869 | _bfd_set_gp_value (obfd, TOCstart); |
| 12870 | ||
| 810d4e75 | 12871 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12872 | { |
| 12873 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12874 | ||
| 810d4e75 AM |
12875 | if (htab != NULL) |
| 12876 | { | |
| 12877 | if (htab->elf.hgot != NULL) | |
| 12878 | { | |
| a27e685f | 12879 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12880 | htab->elf.hgot->root.u.def.section = s; |
| 12881 | } | |
| 12882 | } | |
| 12883 | else | |
| 1c865ab2 | 12884 | { |
| 810d4e75 AM |
12885 | struct bfd_link_hash_entry *bh = NULL; |
| 12886 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12887 | s, TOC_BASE_OFF - adjust, |
| 12888 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12889 | } |
| 12890 | } | |
| 805fc799 | 12891 | return TOCstart; |
| 721956f4 AM |
12892 | } |
| 12893 | ||
| a345bc8d AM |
12894 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12895 | write out any global entry stubs. */ | |
| 12896 | ||
| 12897 | static bfd_boolean | |
| 12898 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12899 | { | |
| 12900 | struct bfd_link_info *info; | |
| 12901 | struct ppc_link_hash_table *htab; | |
| 12902 | struct plt_entry *pent; | |
| 12903 | asection *s; | |
| 12904 | ||
| 12905 | if (h->root.type == bfd_link_hash_indirect) | |
| 12906 | return TRUE; | |
| 12907 | ||
| 12908 | if (!h->pointer_equality_needed) | |
| 12909 | return TRUE; | |
| 12910 | ||
| 12911 | if (h->def_regular) | |
| 12912 | return TRUE; | |
| 12913 | ||
| 12914 | info = inf; | |
| 12915 | htab = ppc_hash_table (info); | |
| 12916 | if (htab == NULL) | |
| 12917 | return FALSE; | |
| 12918 | ||
| 12919 | s = htab->glink; | |
| 12920 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12921 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12922 | && pent->addend == 0) | |
| 12923 | { | |
| 12924 | bfd_byte *p; | |
| 12925 | asection *plt; | |
| 12926 | bfd_vma off; | |
| 12927 | ||
| a345bc8d | 12928 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12929 | plt = htab->elf.splt; |
| a345bc8d AM |
12930 | if (!htab->elf.dynamic_sections_created |
| 12931 | || h->dynindx == -1) | |
| 33e44f2e | 12932 | plt = htab->elf.iplt; |
| a345bc8d AM |
12933 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12934 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12935 | ||
| 12936 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12937 | { | |
| 12938 | info->callbacks->einfo | |
| 12939 | (_("%P: linkage table error against `%T'\n"), | |
| 12940 | h->root.root.string); | |
| 12941 | bfd_set_error (bfd_error_bad_value); | |
| 12942 | htab->stub_error = TRUE; | |
| 12943 | } | |
| 12944 | ||
| 7341d5e2 AM |
12945 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12946 | if (htab->params->emit_stub_syms) | |
| 12947 | { | |
| 12948 | size_t len = strlen (h->root.root.string); | |
| 12949 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12950 | ||
| 12951 | if (name == NULL) | |
| 12952 | return FALSE; | |
| 12953 | ||
| 12954 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12955 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12956 | if (h == NULL) | |
| 12957 | return FALSE; | |
| 12958 | if (h->root.type == bfd_link_hash_new) | |
| 12959 | { | |
| 12960 | h->root.type = bfd_link_hash_defined; | |
| 12961 | h->root.u.def.section = s; | |
| 12962 | h->root.u.def.value = p - s->contents; | |
| 12963 | h->ref_regular = 1; | |
| 12964 | h->def_regular = 1; | |
| 12965 | h->ref_regular_nonweak = 1; | |
| 12966 | h->forced_local = 1; | |
| 12967 | h->non_elf = 0; | |
| 2ec55de3 | 12968 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12969 | } |
| 12970 | } | |
| 12971 | ||
| a345bc8d AM |
12972 | if (PPC_HA (off) != 0) |
| 12973 | { | |
| 12974 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12975 | p += 4; | |
| 12976 | } | |
| 12977 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 12978 | p += 4; | |
| 12979 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 12980 | p += 4; | |
| 12981 | bfd_put_32 (s->owner, BCTR, p); | |
| 12982 | break; | |
| 12983 | } | |
| 12984 | return TRUE; | |
| 12985 | } | |
| 12986 | ||
| 721956f4 AM |
12987 | /* Build all the stubs associated with the current output file. |
| 12988 | The stubs are kept in a hash table attached to the main linker | |
| 12989 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12990 | ||
| b34976b6 | 12991 | bfd_boolean |
| e7d1c40c | 12992 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 12993 | char **stats) |
| 5d1634d7 AM |
12994 | { |
| 12995 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 12996 | struct map_stub *group; |
| 721956f4 | 12997 | asection *stub_sec; |
| 5d1634d7 | 12998 | bfd_byte *p; |
| e717da7e | 12999 | int stub_sec_count = 0; |
| 5d1634d7 | 13000 | |
| 4dfe6ac6 NC |
13001 | if (htab == NULL) |
| 13002 | return FALSE; | |
| 13003 | ||
| eea6121a | 13004 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 13005 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13006 | stub_sec != NULL; |
| 13007 | stub_sec = stub_sec->next) | |
| eea6121a AM |
13008 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 13009 | && stub_sec->size != 0) | |
| e717da7e | 13010 | { |
| e7d1c40c | 13011 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13012 | if (stub_sec->contents == NULL) |
| 13013 | return FALSE; | |
| eea6121a | 13014 | stub_sec->size = 0; |
| e717da7e | 13015 | } |
| 5d1634d7 | 13016 | |
| 23eb7e01 | 13017 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13018 | { |
| 9f951329 | 13019 | unsigned int indx; |
| ad8e1ba5 | 13020 | bfd_vma plt0; |
| 9f951329 | 13021 | |
| 721956f4 | 13022 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13023 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13024 | { |
| 13025 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13026 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13027 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13028 | if (h == NULL) |
| 13029 | return FALSE; | |
| 13030 | if (h->root.type == bfd_link_hash_new) | |
| 13031 | { | |
| 13032 | h->root.type = bfd_link_hash_defined; | |
| 13033 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13034 | h->root.u.def.value = 8; |
| f5385ebf AM |
13035 | h->ref_regular = 1; |
| 13036 | h->def_regular = 1; | |
| 13037 | h->ref_regular_nonweak = 1; | |
| 13038 | h->forced_local = 1; | |
| 13039 | h->non_elf = 0; | |
| 2ec55de3 | 13040 | h->root.linker_def = 1; |
| 97b639ba AM |
13041 | } |
| 13042 | } | |
| 33e44f2e AM |
13043 | plt0 = (htab->elf.splt->output_section->vma |
| 13044 | + htab->elf.splt->output_offset | |
| 13045 | - 16); | |
| 176a0d42 AM |
13046 | if (info->emitrelocations) |
| 13047 | { | |
| 13048 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13049 | if (r == NULL) | |
| 13050 | return FALSE; | |
| 13051 | r->r_offset = (htab->glink->output_offset | |
| 13052 | + htab->glink->output_section->vma); | |
| 13053 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13054 | r->r_addend = plt0; | |
| 13055 | } | |
| 4ce794b7 | 13056 | p = htab->glink->contents; |
| 176a0d42 | 13057 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13058 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13059 | p += 8; | |
| b9e5796b AM |
13060 | if (htab->opd_abi) |
| 13061 | { | |
| 13062 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13063 | p += 4; | |
| 13064 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13065 | p += 4; | |
| 13066 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13067 | p += 4; | |
| 13068 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13069 | p += 4; | |
| 13070 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13071 | p += 4; | |
| 13072 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13073 | p += 4; | |
| 13074 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13075 | p += 4; | |
| 13076 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13077 | p += 4; | |
| 13078 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13079 | p += 4; | |
| 13080 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13081 | p += 4; | |
| 13082 | } | |
| 13083 | else | |
| 13084 | { | |
| 13085 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13086 | p += 4; | |
| 13087 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13088 | p += 4; | |
| 13089 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13090 | p += 4; | |
| 13091 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13092 | p += 4; | |
| 13093 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13094 | p += 4; | |
| 13095 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13096 | p += 4; | |
| 13097 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13098 | p += 4; | |
| 13099 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13100 | p += 4; | |
| 13101 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13102 | p += 4; | |
| 13103 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13104 | p += 4; | |
| 13105 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13106 | p += 4; | |
| 13107 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13108 | p += 4; | |
| 13109 | } | |
| 4ce794b7 | 13110 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 13111 | p += 4; |
| ee4bf8d2 AM |
13112 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 13113 | { | |
| 13114 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 13115 | p += 4; | |
| 13116 | } | |
| ad8e1ba5 | 13117 | |
| 9f951329 AM |
13118 | /* Build the .glink lazy link call stubs. */ |
| 13119 | indx = 0; | |
| a345bc8d | 13120 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 13121 | { |
| b9e5796b | 13122 | if (htab->opd_abi) |
| 9f951329 | 13123 | { |
| b9e5796b AM |
13124 | if (indx < 0x8000) |
| 13125 | { | |
| 13126 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13127 | p += 4; | |
| 13128 | } | |
| 13129 | else | |
| 13130 | { | |
| 13131 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13132 | p += 4; | |
| 13133 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13134 | p); | |
| 13135 | p += 4; | |
| 13136 | } | |
| 9f951329 | 13137 | } |
| 4ce794b7 | 13138 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13139 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13140 | indx++; |
| 9f951329 AM |
13141 | p += 4; |
| 13142 | } | |
| a345bc8d AM |
13143 | |
| 13144 | /* Build .glink global entry stubs. */ | |
| 13145 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13146 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13147 | } |
| 5d1634d7 | 13148 | |
| 7341d5e2 | 13149 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13150 | { |
| 4ce794b7 | 13151 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13152 | htab->brlt->size); |
| 4ce794b7 | 13153 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13154 | return FALSE; |
| 721956f4 | 13155 | } |
| ee75fd95 | 13156 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13157 | { |
| 13158 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13159 | htab->relbrlt->size); |
| 63bc6f6c AM |
13160 | if (htab->relbrlt->contents == NULL) |
| 13161 | return FALSE; | |
| 13162 | } | |
| 5d1634d7 | 13163 | |
| 721956f4 AM |
13164 | /* Build the stubs as directed by the stub hash table. */ |
| 13165 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13166 | |
| a4b6fadd AM |
13167 | for (group = htab->group; group != NULL; group = group->next) |
| 13168 | if (group->needs_save_res) | |
| 13169 | { | |
| 13170 | stub_sec = group->stub_sec; | |
| 13171 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13172 | htab->sfpr->size); | |
| 13173 | if (htab->params->emit_stub_syms) | |
| 13174 | { | |
| 13175 | unsigned int i; | |
| 13176 | ||
| 13177 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13178 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13179 | return FALSE; | |
| 13180 | } | |
| 13181 | stub_sec->size += htab->sfpr->size; | |
| 13182 | } | |
| 13183 | ||
| aa8a7074 AM |
13184 | if (htab->relbrlt != NULL) |
| 13185 | htab->relbrlt->reloc_count = 0; | |
| 13186 | ||
| e7d1c40c AM |
13187 | if (htab->params->plt_stub_align != 0) |
| 13188 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
13189 | stub_sec != NULL; |
| 13190 | stub_sec = stub_sec->next) | |
| 13191 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
13192 | stub_sec->size = ((stub_sec->size |
| 13193 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13194 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13195 | |
| e7d1c40c | 13196 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13197 | stub_sec != NULL; |
| 13198 | stub_sec = stub_sec->next) | |
| e717da7e AM |
13199 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 13200 | { | |
| 13201 | stub_sec_count += 1; | |
| c9301e31 AM |
13202 | if (stub_sec->rawsize != stub_sec->size |
| 13203 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13204 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13205 | break; |
| 13206 | } | |
| 5d1634d7 | 13207 | |
| da44f4e5 AM |
13208 | /* Note that the glink_eh_frame check here is not only testing that |
| 13209 | the generated size matched the calculated size but also that | |
| 13210 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 13211 | if (stub_sec != NULL |
| 58d180e8 AM |
13212 | || (htab->glink_eh_frame != NULL |
| 13213 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13214 | { |
| b34976b6 | 13215 | htab->stub_error = TRUE; |
| 8de848d8 | 13216 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13217 | } |
| 721956f4 | 13218 | |
| d2a300cf AM |
13219 | if (htab->stub_error) |
| 13220 | return FALSE; | |
| 13221 | ||
| 13222 | if (stats != NULL) | |
| 13223 | { | |
| 13224 | *stats = bfd_malloc (500); | |
| 13225 | if (*stats == NULL) | |
| 13226 | return FALSE; | |
| 13227 | ||
| ee75fd95 | 13228 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13229 | " branch %lu\n" |
| 13230 | " toc adjust %lu\n" | |
| 13231 | " long branch %lu\n" | |
| 13232 | " long toc adj %lu\n" | |
| 794e51c0 | 13233 | " plt call %lu\n" |
| 7341d5e2 AM |
13234 | " plt call toc %lu\n" |
| 13235 | " global entry %lu"), | |
| e717da7e | 13236 | stub_sec_count, |
| ee75fd95 | 13237 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13238 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13239 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13240 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13241 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13242 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13243 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13244 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13245 | } |
| 13246 | return TRUE; | |
| 5bd4f169 AM |
13247 | } |
| 13248 | ||
| 99877b66 AM |
13249 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 13250 | ||
| 13251 | static bfd_boolean | |
| 13252 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 13253 | { | |
| 13254 | struct ppc_link_hash_entry *eh; | |
| 13255 | ||
| 13256 | if (h->root.type == bfd_link_hash_indirect) | |
| 13257 | return TRUE; | |
| 13258 | ||
| 99877b66 AM |
13259 | eh = (struct ppc_link_hash_entry *) h; |
| 13260 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 13261 | return TRUE; | |
| 13262 | ||
| 13263 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 13264 | return TRUE; | |
| 13265 | } | |
| 13266 | ||
| 13267 | void | |
| 13268 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 13269 | { | |
| 13270 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
13271 | |
| 13272 | if (htab != NULL) | |
| 13273 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
13274 | } |
| 13275 | ||
| 60124e18 AM |
13276 | /* What to do when ld finds relocations against symbols defined in |
| 13277 | discarded sections. */ | |
| 13278 | ||
| 13279 | static unsigned int | |
| 13280 | ppc64_elf_action_discarded (asection *sec) | |
| 13281 | { | |
| 13282 | if (strcmp (".opd", sec->name) == 0) | |
| 13283 | return 0; | |
| 13284 | ||
| 13285 | if (strcmp (".toc", sec->name) == 0) | |
| 13286 | return 0; | |
| 13287 | ||
| bce50a28 JJ |
13288 | if (strcmp (".toc1", sec->name) == 0) |
| 13289 | return 0; | |
| 13290 | ||
| 60124e18 AM |
13291 | return _bfd_elf_default_action_discarded (sec); |
| 13292 | } | |
| 13293 | ||
| 5bd4f169 AM |
13294 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13295 | to handle the relocations for a section. | |
| 13296 | ||
| 13297 | The relocs are always passed as Rela structures; if the section | |
| 13298 | actually uses Rel structures, the r_addend field will always be | |
| 13299 | zero. | |
| 13300 | ||
| 13301 | This function is responsible for adjust the section contents as | |
| 13302 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13303 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13304 | necessary. |
| 13305 | ||
| 13306 | This function does not have to worry about setting the reloc | |
| 13307 | address or the reloc symbol index. | |
| 13308 | ||
| 13309 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13310 | ||
| 13311 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13312 | corresponding to the st_shndx field of each local symbol. | |
| 13313 | ||
| 13314 | The global hash table entry for the global symbols can be found | |
| 13315 | via elf_sym_hashes (input_bfd). | |
| 13316 | ||
| 1049f94e | 13317 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13318 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13319 | going to be the section symbol corresponding to the output | |
| 13320 | section, which means that the addend must be adjusted | |
| 13321 | accordingly. */ | |
| 13322 | ||
| b34976b6 | 13323 | static bfd_boolean |
| 4ce794b7 AM |
13324 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13325 | struct bfd_link_info *info, | |
| 13326 | bfd *input_bfd, | |
| 13327 | asection *input_section, | |
| 13328 | bfd_byte *contents, | |
| 13329 | Elf_Internal_Rela *relocs, | |
| 13330 | Elf_Internal_Sym *local_syms, | |
| 13331 | asection **local_sections) | |
| 5bd4f169 | 13332 | { |
| 65f38f15 | 13333 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13334 | Elf_Internal_Shdr *symtab_hdr; |
| 13335 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13336 | Elf_Internal_Rela *rel; |
| c316a17c | 13337 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13338 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13339 | Elf_Internal_Rela outrel; |
| 13340 | bfd_byte *loc; | |
| 411e1bfb | 13341 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13342 | bfd_vma TOCstart; |
| b34976b6 AM |
13343 | bfd_boolean ret = TRUE; |
| 13344 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13345 | /* Assume 'at' branch hints. */ |
| 13346 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13347 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13348 | |
| 65f38f15 | 13349 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13350 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13351 | ppc_howto_init (); |
| 13352 | ||
| 65f38f15 | 13353 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13354 | if (htab == NULL) |
| 13355 | return FALSE; | |
| ee75fd95 AM |
13356 | |
| 13357 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13358 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13359 | return TRUE; |
| 13360 | ||
| 0c8d6e5c | 13361 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13362 | |
| 411e1bfb | 13363 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13364 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13365 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13366 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13367 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13368 | |
| c316a17c | 13369 | rel = wrel = relocs; |
| 5bd4f169 | 13370 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13371 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13372 | { |
| 04c9666a | 13373 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13374 | bfd_vma addend; |
| 5bd4f169 AM |
13375 | bfd_reloc_status_type r; |
| 13376 | Elf_Internal_Sym *sym; | |
| 13377 | asection *sec; | |
| 039b3fef AM |
13378 | struct elf_link_hash_entry *h_elf; |
| 13379 | struct ppc_link_hash_entry *h; | |
| 13380 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13381 | const char *sym_name; |
| 0d4792f7 | 13382 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13383 | bfd_vma toc_addend; |
| f961d9dd AM |
13384 | unsigned char tls_mask, tls_gd, tls_type; |
| 13385 | unsigned char sym_type; | |
| 5bd4f169 | 13386 | bfd_vma relocation; |
| b34976b6 AM |
13387 | bfd_boolean unresolved_reloc; |
| 13388 | bfd_boolean warned; | |
| bc30df16 | 13389 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13390 | unsigned int insn; |
| e11840f9 | 13391 | unsigned int mask; |
| 721956f4 AM |
13392 | struct ppc_stub_hash_entry *stub_entry; |
| 13393 | bfd_vma max_br_offset; | |
| 13394 | bfd_vma from; | |
| c316a17c | 13395 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13396 | reloc_howto_type *howto; |
| 13397 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13398 | |
| c316a17c AM |
13399 | again: |
| 13400 | orig_rel = *rel; | |
| 13401 | ||
| 4ce794b7 | 13402 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13403 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13404 | |
| 13405 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13406 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13407 | proper TOC base to use. */ | |
| 13408 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13409 | && wrel != relocs |
| 13410 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13411 | && is_opd) |
| c316a17c | 13412 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13413 | |
| 4ce794b7 AM |
13414 | sym = NULL; |
| 13415 | sec = NULL; | |
| 039b3fef | 13416 | h_elf = NULL; |
| 4ce794b7 | 13417 | sym_name = NULL; |
| b34976b6 AM |
13418 | unresolved_reloc = FALSE; |
| 13419 | warned = FALSE; | |
| 65f38f15 | 13420 | |
| 0b13192e | 13421 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13422 | { |
| 13423 | /* It's a local symbol. */ | |
| 74f0fb50 | 13424 | struct _opd_sec_data *opd; |
| 4025353c | 13425 | |
| 5bd4f169 AM |
13426 | sym = local_syms + r_symndx; |
| 13427 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13428 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13429 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13430 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13431 | opd = get_opd_info (sec); |
| 13432 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13433 | { |
| 51aecdc5 AM |
13434 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13435 | + rel->r_addend)]; | |
| 4025353c AM |
13436 | if (adjust == -1) |
| 13437 | relocation = 0; | |
| 13438 | else | |
| 4cc603a5 AM |
13439 | { |
| 13440 | /* If this is a relocation against the opd section sym | |
| 13441 | and we have edited .opd, adjust the reloc addend so | |
| 13442 | that ld -r and ld --emit-relocs output is correct. | |
| 13443 | If it is a reloc against some other .opd symbol, | |
| 13444 | then the symbol value will be adjusted later. */ | |
| 13445 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13446 | rel->r_addend += adjust; | |
| 13447 | else | |
| 13448 | relocation += adjust; | |
| 13449 | } | |
| 1e2f5b6e | 13450 | } |
| 5bd4f169 AM |
13451 | } |
| 13452 | else | |
| 13453 | { | |
| 62d887d4 L |
13454 | bfd_boolean ignored; |
| 13455 | ||
| b2a8e766 AM |
13456 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13457 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13458 | h_elf, sec, relocation, |
| 62d887d4 | 13459 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13460 | sym_name = h_elf->root.root.string; |
| 13461 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13462 | if (sec != NULL |
| 13463 | && sec->owner == output_bfd | |
| 13464 | && strcmp (sec->name, ".opd") == 0) | |
| 13465 | { | |
| 13466 | /* This is a symbol defined in a linker script. All | |
| 13467 | such are defined in output sections, even those | |
| 13468 | defined by simple assignment from a symbol defined in | |
| 13469 | an input section. Transfer the symbol to an | |
| 13470 | appropriate input .opd section, so that a branch to | |
| 13471 | this symbol will be mapped to the location specified | |
| 13472 | by the opd entry. */ | |
| 13473 | struct bfd_link_order *lo; | |
| 13474 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13475 | if (lo->type == bfd_indirect_link_order) | |
| 13476 | { | |
| 13477 | asection *isec = lo->u.indirect.section; | |
| 13478 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13479 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13480 | + isec->size)) | |
| 13481 | { | |
| 13482 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13483 | h_elf->root.u.def.section = isec; | |
| 13484 | sec = isec; | |
| 13485 | break; | |
| 13486 | } | |
| 13487 | } | |
| 13488 | } | |
| 5bd4f169 | 13489 | } |
| 039b3fef | 13490 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13491 | |
| dbaa2011 | 13492 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13493 | { |
| 13494 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13495 | input_bfd, input_section, | |
| 13496 | contents + rel->r_offset); | |
| 13497 | wrel->r_offset = rel->r_offset; | |
| 13498 | wrel->r_info = 0; | |
| 13499 | wrel->r_addend = 0; | |
| 13500 | ||
| 13501 | /* For ld -r, remove relocations in debug sections against | |
| 13502 | sections defined in discarded sections. Not done for | |
| 13503 | non-debug to preserve relocs in .eh_frame which the | |
| 13504 | eh_frame editing code expects to be present. */ | |
| 13505 | if (bfd_link_relocatable (info) | |
| 13506 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13507 | wrel--; | |
| 13508 | ||
| 13509 | continue; | |
| 13510 | } | |
| ab96bf03 | 13511 | |
| 0e1862bb | 13512 | if (bfd_link_relocatable (info)) |
| c316a17c | 13513 | goto copy_reloc; |
| ab96bf03 | 13514 | |
| f40da81b AM |
13515 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13516 | { | |
| 6f20ed8a | 13517 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13518 | sec = bfd_abs_section_ptr; |
| 13519 | unresolved_reloc = FALSE; | |
| 13520 | } | |
| 13521 | ||
| 951fd09b AM |
13522 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13523 | based on information we collected in tls_optimize. We edit | |
| 13524 | RELOCS so that --emit-relocs will output something sensible | |
| 13525 | for the final instruction stream. */ | |
| 13526 | tls_mask = 0; | |
| 13527 | tls_gd = 0; | |
| 0d4792f7 | 13528 | toc_symndx = 0; |
| 727fc41e AM |
13529 | if (h != NULL) |
| 13530 | tls_mask = h->tls_mask; | |
| 13531 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13532 | { |
| e054468f AM |
13533 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13534 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13535 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13536 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13537 | tls_mask = lgot_masks[r_symndx]; |
| 13538 | } | |
| 13539 | if (tls_mask == 0 | |
| 13540 | && (r_type == R_PPC64_TLS | |
| 13541 | || r_type == R_PPC64_TLSGD | |
| 13542 | || r_type == R_PPC64_TLSLD)) | |
| 13543 | { | |
| 13544 | /* Check for toc tls entries. */ | |
| f961d9dd | 13545 | unsigned char *toc_tls; |
| 0d4792f7 | 13546 | |
| 727fc41e AM |
13547 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13548 | &local_syms, rel, input_bfd)) | |
| 13549 | return FALSE; | |
| 0d4792f7 | 13550 | |
| 727fc41e AM |
13551 | if (toc_tls) |
| 13552 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13553 | } |
| 13554 | ||
| 13555 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13556 | relocs are used with non-tls syms. */ | |
| cf35638d | 13557 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13558 | && r_type != R_PPC64_NONE |
| 13559 | && (h == NULL | |
| 039b3fef AM |
13560 | || h->elf.root.type == bfd_link_hash_defined |
| 13561 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13562 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13563 | != (sym_type == STT_TLS | |
| 13564 | || (sym_type == STT_SECTION | |
| 13565 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13566 | { |
| 727fc41e AM |
13567 | if (tls_mask != 0 |
| 13568 | && (r_type == R_PPC64_TLS | |
| 13569 | || r_type == R_PPC64_TLSGD | |
| 13570 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13571 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13572 | ; | |
| 13573 | else | |
| 25f53a85 | 13574 | info->callbacks->einfo |
| 1d483afe | 13575 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13576 | /* xgettext:c-format */ |
| bc30df16 | 13577 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13578 | /* xgettext:c-format */ |
| bc30df16 | 13579 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13580 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13581 | ppc64_elf_howto_table[r_type]->name, |
| 13582 | sym_name); | |
| 411e1bfb AM |
13583 | } |
| 13584 | ||
| 13585 | /* Ensure reloc mapping code below stays sane. */ | |
| 13586 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13587 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13588 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13589 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13590 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13591 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13592 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13593 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13594 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13595 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13596 | abort (); | |
| 0d4792f7 | 13597 | |
| 411e1bfb AM |
13598 | switch (r_type) |
| 13599 | { | |
| 13600 | default: | |
| 411e1bfb AM |
13601 | break; |
| 13602 | ||
| ba761f19 | 13603 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13604 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13605 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13606 | abort (); | |
| 13607 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13608 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13609 | r_type = R_PPC64_TOC16_LO; |
| 13610 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13611 | break; | |
| 13612 | ||
| 411e1bfb AM |
13613 | case R_PPC64_TOC16: |
| 13614 | case R_PPC64_TOC16_LO: | |
| 13615 | case R_PPC64_TOC16_DS: | |
| 13616 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13617 | { |
| 13618 | /* Check for toc tls entries. */ | |
| f961d9dd | 13619 | unsigned char *toc_tls; |
| 951fd09b | 13620 | int retval; |
| 411e1bfb | 13621 | |
| 3a71aa26 AM |
13622 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13623 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13624 | if (retval == 0) |
| 411e1bfb AM |
13625 | return FALSE; |
| 13626 | ||
| 13627 | if (toc_tls) | |
| 13628 | { | |
| 951fd09b | 13629 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13630 | if (r_type == R_PPC64_TOC16_DS |
| 13631 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13632 | { |
| 13633 | if (tls_mask != 0 | |
| 13634 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13635 | goto toctprel; | |
| 13636 | } | |
| 411e1bfb | 13637 | else |
| 951fd09b AM |
13638 | { |
| 13639 | /* If we found a GD reloc pair, then we might be | |
| 13640 | doing a GD->IE transition. */ | |
| 13641 | if (retval == 2) | |
| 13642 | { | |
| 13643 | tls_gd = TLS_TPRELGD; | |
| 13644 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13645 | goto tls_ldgd_opt; |
| 951fd09b AM |
13646 | } |
| 13647 | else if (retval == 3) | |
| 13648 | { | |
| 13649 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13650 | goto tls_ldgd_opt; |
| 951fd09b AM |
13651 | } |
| 13652 | } | |
| 411e1bfb AM |
13653 | } |
| 13654 | } | |
| 13655 | break; | |
| 13656 | ||
| 9d6ded02 AM |
13657 | case R_PPC64_GOT_TPREL16_HI: |
| 13658 | case R_PPC64_GOT_TPREL16_HA: | |
| 13659 | if (tls_mask != 0 | |
| 13660 | && (tls_mask & TLS_TPREL) == 0) | |
| 13661 | { | |
| 13662 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13663 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13664 | r_type = R_PPC64_NONE; |
| 13665 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13666 | } | |
| 13667 | break; | |
| 13668 | ||
| 411e1bfb AM |
13669 | case R_PPC64_GOT_TPREL16_DS: |
| 13670 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13671 | if (tls_mask != 0 |
| 13672 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13673 | { |
| 81407a69 | 13674 | toctprel: |
| 95f0d0d2 | 13675 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13676 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13677 | insn &= 31 << 21; |
| 13678 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13679 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13680 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13681 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13682 | if (toc_symndx != 0) |
| 13683 | { | |
| 13684 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13685 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13686 | /* We changed the symbol. Start over in order to |
| 13687 | get h, sym, sec etc. right. */ | |
| c316a17c | 13688 | goto again; |
| 0d4792f7 AM |
13689 | } |
| 13690 | else | |
| 13691 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13692 | } |
| 13693 | break; | |
| 13694 | ||
| 13695 | case R_PPC64_TLS: | |
| 951fd09b AM |
13696 | if (tls_mask != 0 |
| 13697 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13698 | { |
| 95f0d0d2 | 13699 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13700 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13701 | if (insn == 0) | |
| 411e1bfb | 13702 | abort (); |
| 95f0d0d2 | 13703 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13704 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13705 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13706 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13707 | r_type = R_PPC64_TPREL16_LO; |
| 13708 | if (toc_symndx != 0) | |
| 13709 | { | |
| 13710 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13711 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13712 | /* We changed the symbol. Start over in order to |
| 13713 | get h, sym, sec etc. right. */ | |
| c316a17c | 13714 | goto again; |
| 0d4792f7 AM |
13715 | } |
| 13716 | else | |
| 13717 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13718 | } |
| 13719 | break; | |
| 13720 | ||
| 411e1bfb AM |
13721 | case R_PPC64_GOT_TLSGD16_HI: |
| 13722 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13723 | tls_gd = TLS_TPRELGD; |
| 13724 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13725 | goto tls_gdld_hi; | |
| 13726 | break; | |
| 13727 | ||
| 411e1bfb AM |
13728 | case R_PPC64_GOT_TLSLD16_HI: |
| 13729 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13730 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13731 | { |
| 951fd09b AM |
13732 | tls_gdld_hi: |
| 13733 | if ((tls_mask & tls_gd) != 0) | |
| 13734 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13735 | + R_PPC64_GOT_TPREL16_DS); | |
| 13736 | else | |
| 411e1bfb | 13737 | { |
| 4fe5ca5b | 13738 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13739 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13740 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13741 | } |
| 951fd09b | 13742 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13743 | } |
| 13744 | break; | |
| 13745 | ||
| 951fd09b AM |
13746 | case R_PPC64_GOT_TLSGD16: |
| 13747 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13748 | tls_gd = TLS_TPRELGD; | |
| 13749 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13750 | goto tls_ldgd_opt; |
| 951fd09b | 13751 | break; |
| 411e1bfb | 13752 | |
| 951fd09b AM |
13753 | case R_PPC64_GOT_TLSLD16: |
| 13754 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13755 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13756 | { | |
| 3a71aa26 | 13757 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13758 | bfd_vma offset; |
| 13759 | ||
| 13760 | tls_ldgd_opt: | |
| 727fc41e AM |
13761 | offset = (bfd_vma) -1; |
| 13762 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13763 | __tls_get_addr calls, we must trust that the call | |
| 13764 | stays with its arg setup insns, ie. that the next | |
| 13765 | reloc is the __tls_get_addr call associated with | |
| 13766 | the current reloc. Edit both insns. */ | |
| 13767 | if (input_section->has_tls_get_addr_call | |
| 13768 | && rel + 1 < relend | |
| 13769 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13770 | htab->tls_get_addr, | |
| 13771 | htab->tls_get_addr_fd)) | |
| 13772 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13773 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13774 | need to keep the destination reg. It may be | |
| 13775 | something other than the usual r3, and moved to r3 | |
| 13776 | before the call by intervening code. */ | |
| 95f0d0d2 | 13777 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13778 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13779 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13780 | { |
| 102890f0 | 13781 | /* IE */ |
| b86ac8e3 | 13782 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13783 | insn1 |= 58 << 26; /* ld */ |
| 13784 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13785 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13786 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13787 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13788 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13789 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13790 | else |
| 102890f0 AM |
13791 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13792 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13793 | } | |
| 13794 | else | |
| 13795 | { | |
| 13796 | /* LE */ | |
| b86ac8e3 AM |
13797 | insn1 &= 0x1f << 21; |
| 13798 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13799 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13800 | if (tls_gd == 0) | |
| 951fd09b | 13801 | { |
| 102890f0 | 13802 | /* Was an LD reloc. */ |
| 1d483afe AM |
13803 | if (toc_symndx) |
| 13804 | sec = local_sections[toc_symndx]; | |
| 13805 | for (r_symndx = 0; | |
| 13806 | r_symndx < symtab_hdr->sh_info; | |
| 13807 | r_symndx++) | |
| 13808 | if (local_sections[r_symndx] == sec) | |
| 13809 | break; | |
| 13810 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13811 | r_symndx = STN_UNDEF; |
| 102890f0 | 13812 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13813 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13814 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13815 | + sec->output_offset | |
| 13816 | + sec->output_section->vma); | |
| 951fd09b | 13817 | } |
| 102890f0 | 13818 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13819 | { |
| 13820 | r_symndx = toc_symndx; | |
| 13821 | rel->r_addend = toc_addend; | |
| 13822 | } | |
| 102890f0 AM |
13823 | r_type = R_PPC64_TPREL16_HA; |
| 13824 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13825 | if (offset != (bfd_vma) -1) |
| 13826 | { | |
| 13827 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13828 | R_PPC64_TPREL16_LO); | |
| 13829 | rel[1].r_offset = offset + d_offset; | |
| 13830 | rel[1].r_addend = rel->r_addend; | |
| 13831 | } | |
| 102890f0 | 13832 | } |
| 95f0d0d2 | 13833 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13834 | contents + rel->r_offset - d_offset); |
| 727fc41e AM |
13835 | if (offset != (bfd_vma) -1) |
| 13836 | { | |
| 95f0d0d2 | 13837 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
13838 | contents + offset + 4); |
| 13839 | if (insn3 == NOP | |
| 13840 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13841 | { | |
| 13842 | rel[1].r_offset += 4; | |
| 95f0d0d2 | 13843 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
13844 | insn2 = NOP; |
| 13845 | } | |
| 95f0d0d2 | 13846 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13847 | } |
| 13848 | if ((tls_mask & tls_gd) == 0 | |
| 13849 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13850 | { | |
| 13851 | /* We changed the symbol. Start over in order | |
| 13852 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13853 | goto again; |
| 727fc41e AM |
13854 | } |
| 13855 | } | |
| 13856 | break; | |
| 13857 | ||
| 13858 | case R_PPC64_TLSGD: | |
| 13859 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13860 | { | |
| 13861 | unsigned int insn2, insn3; | |
| 13862 | bfd_vma offset = rel->r_offset; | |
| 13863 | ||
| 13864 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13865 | { | |
| 13866 | /* IE */ | |
| 13867 | r_type = R_PPC64_NONE; | |
| 13868 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13869 | } | |
| 13870 | else | |
| 13871 | { | |
| 13872 | /* LE */ | |
| 13873 | if (toc_symndx != 0) | |
| 13874 | { | |
| 13875 | r_symndx = toc_symndx; | |
| 13876 | rel->r_addend = toc_addend; | |
| 13877 | } | |
| 13878 | r_type = R_PPC64_TPREL16_LO; | |
| 13879 | rel->r_offset = offset + d_offset; | |
| 13880 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13881 | } | |
| 13882 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13883 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13884 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13885 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13886 | insn3 = bfd_get_32 (input_bfd, |
| 3a71aa26 | 13887 | contents + offset + 4); |
| 102890f0 AM |
13888 | if (insn3 == NOP |
| 13889 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13890 | { | |
| 727fc41e | 13891 | rel->r_offset += 4; |
| 95f0d0d2 | 13892 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 3a71aa26 | 13893 | insn2 = NOP; |
| 102890f0 | 13894 | } |
| 95f0d0d2 | 13895 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13896 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13897 | goto again; |
| 411e1bfb | 13898 | } |
| 411e1bfb AM |
13899 | break; |
| 13900 | ||
| 727fc41e AM |
13901 | case R_PPC64_TLSLD: |
| 13902 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13903 | { | |
| 13904 | unsigned int insn2, insn3; | |
| 13905 | bfd_vma offset = rel->r_offset; | |
| 13906 | ||
| 13907 | if (toc_symndx) | |
| 13908 | sec = local_sections[toc_symndx]; | |
| 13909 | for (r_symndx = 0; | |
| 13910 | r_symndx < symtab_hdr->sh_info; | |
| 13911 | r_symndx++) | |
| 13912 | if (local_sections[r_symndx] == sec) | |
| 13913 | break; | |
| 13914 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13915 | r_symndx = STN_UNDEF; |
| 727fc41e | 13916 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13917 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13918 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13919 | + sec->output_offset | |
| 13920 | + sec->output_section->vma); | |
| 13921 | ||
| 13922 | r_type = R_PPC64_TPREL16_LO; | |
| 13923 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13924 | rel->r_offset = offset + d_offset; | |
| 13925 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13926 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13927 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13928 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13929 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
13930 | contents + offset + 4); |
| 13931 | if (insn3 == NOP | |
| 13932 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13933 | { | |
| 13934 | rel->r_offset += 4; | |
| 95f0d0d2 | 13935 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
13936 | insn2 = NOP; |
| 13937 | } | |
| 95f0d0d2 | 13938 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13939 | goto again; |
| 727fc41e AM |
13940 | } |
| 13941 | break; | |
| 13942 | ||
| 411e1bfb | 13943 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13944 | if (rel + 1 < relend |
| 13945 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13946 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13947 | { |
| 951fd09b AM |
13948 | if ((tls_mask & TLS_GD) == 0) |
| 13949 | { | |
| 13950 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13951 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13952 | r_type = R_PPC64_TPREL64; | |
| 13953 | else | |
| 13954 | { | |
| 4ce794b7 | 13955 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13956 | r_type = R_PPC64_NONE; |
| 13957 | } | |
| 13958 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13959 | } | |
| 13960 | } | |
| 13961 | else | |
| 13962 | { | |
| 13963 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13964 | { |
| 4ce794b7 | 13965 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13966 | r_type = R_PPC64_NONE; |
| 951fd09b | 13967 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13968 | } |
| 411e1bfb AM |
13969 | } |
| 13970 | break; | |
| 13971 | ||
| 13972 | case R_PPC64_TPREL64: | |
| 951fd09b | 13973 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13974 | { |
| 13975 | r_type = R_PPC64_NONE; | |
| 13976 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13977 | } | |
| 13978 | break; | |
| 52a82034 | 13979 | |
| 006589cf AM |
13980 | case R_PPC64_ENTRY: |
| 13981 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 13982 | if (!bfd_link_pic (info) | |
| 13983 | && !info->traditional_format | |
| 13984 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13985 | { | |
| 13986 | unsigned int insn1, insn2; | |
| 13987 | ||
| 13988 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13989 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 13990 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 13991 | && insn2 == ADD_R2_R2_R12) | |
| 13992 | { | |
| 95f0d0d2 | 13993 | bfd_put_32 (input_bfd, |
| 006589cf AM |
13994 | LIS_R2 + PPC_HA (relocation), |
| 13995 | contents + rel->r_offset); | |
| 95f0d0d2 | 13996 | bfd_put_32 (input_bfd, |
| 006589cf AM |
13997 | ADDI_R2_R2 + PPC_LO (relocation), |
| 13998 | contents + rel->r_offset + 4); | |
| 13999 | } | |
| 14000 | } | |
| 14001 | else | |
| 14002 | { | |
| 14003 | relocation -= (rel->r_offset | |
| 14004 | + input_section->output_offset | |
| 14005 | + input_section->output_section->vma); | |
| 14006 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14007 | { | |
| 14008 | unsigned int insn1, insn2; | |
| 14009 | ||
| 14010 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14011 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14012 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14013 | && insn2 == ADD_R2_R2_R12) | |
| 14014 | { | |
| 95f0d0d2 | 14015 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14016 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14017 | contents + rel->r_offset); | |
| 95f0d0d2 | 14018 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14019 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14020 | contents + rel->r_offset + 4); | |
| 14021 | } | |
| 14022 | } | |
| 14023 | } | |
| 14024 | break; | |
| 14025 | ||
| 52a82034 AM |
14026 | case R_PPC64_REL16_HA: |
| 14027 | /* If we are generating a non-PIC executable, edit | |
| 14028 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14029 | . addi 2,2,.TOC.-0b@l | |
| 14030 | used by ELFv2 global entry points to set up r2, to | |
| 14031 | . lis 2,.TOC.@ha | |
| 14032 | . addi 2,2,.TOC.@l | |
| 14033 | if .TOC. is in range. */ | |
| 0e1862bb | 14034 | if (!bfd_link_pic (info) |
| 810d4e75 | 14035 | && !info->traditional_format |
| 006589cf | 14036 | && !htab->opd_abi |
| 4f038ee5 | 14037 | && rel->r_addend == d_offset |
| 52a82034 AM |
14038 | && h != NULL && &h->elf == htab->elf.hgot |
| 14039 | && rel + 1 < relend | |
| 14040 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14041 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14042 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14043 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14044 | { | |
| 14045 | unsigned int insn1, insn2; | |
| 14046 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14047 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14048 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14049 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14050 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14051 | { |
| 14052 | r_type = R_PPC64_ADDR16_HA; | |
| 14053 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14054 | rel->r_addend -= d_offset; | |
| 14055 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14056 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14057 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14058 | } |
| 14059 | } | |
| 14060 | break; | |
| 411e1bfb AM |
14061 | } |
| 14062 | ||
| 14063 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14064 | insn = 0; |
| b25116a9 AM |
14065 | max_br_offset = 1 << 25; |
| 14066 | addend = rel->r_addend; | |
| bc30df16 | 14067 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14068 | switch (r_type) |
| 5bd4f169 AM |
14069 | { |
| 14070 | default: | |
| 65f38f15 | 14071 | break; |
| 5bd4f169 | 14072 | |
| 3b421ab3 AM |
14073 | case R_PPC64_TOCSAVE: |
| 14074 | if (relocation + addend == (rel->r_offset | |
| 14075 | + input_section->output_offset | |
| 14076 | + input_section->output_section->vma) | |
| 14077 | && tocsave_find (htab, NO_INSERT, | |
| 14078 | &local_syms, rel, input_bfd)) | |
| 14079 | { | |
| 14080 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14081 | if (insn == NOP | |
| 14082 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14083 | bfd_put_32 (input_bfd, |
| 14084 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14085 | contents + rel->r_offset); |
| 14086 | } | |
| 14087 | break; | |
| 14088 | ||
| 65f38f15 AM |
14089 | /* Branch taken prediction relocations. */ |
| 14090 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14091 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14092 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14093 | /* Fall through. */ |
| 65f38f15 | 14094 | |
| 86c76c7b | 14095 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14096 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14097 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14098 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14099 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14100 | /* Fall through. */ |
| 86c76c7b | 14101 | |
| b25116a9 AM |
14102 | case R_PPC64_REL14: |
| 14103 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14104 | /* Fall through. */ |
| 5bd4f169 | 14105 | |
| 65f38f15 | 14106 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14107 | /* Calls to functions with a different TOC, such as calls to |
| 14108 | shared objects, need to alter the TOC pointer. This is | |
| 14109 | done using a linkage stub. A REL24 branching to these | |
| 14110 | linkage stubs needs to be followed by a nop, as the nop | |
| 14111 | will be replaced with an instruction to restore the TOC | |
| 14112 | base pointer. */ | |
| 8387904d | 14113 | fdh = h; |
| b31867b6 AM |
14114 | if (h != NULL |
| 14115 | && h->oh != NULL | |
| 14116 | && h->oh->is_func_descriptor) | |
| 14117 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14118 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14119 | htab); | |
| 6abec6bc | 14120 | if (stub_entry != NULL |
| ad8e1ba5 | 14121 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14122 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14123 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14124 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14125 | { |
| b25116a9 | 14126 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14127 | |
| ba8ca3e7 AM |
14128 | /* All of these stubs will modify r2, so there must be a |
| 14129 | branch and link followed by a nop. The nop is | |
| 14130 | replaced by an insn to restore r2. */ | |
| eea6121a | 14131 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14132 | { |
| ba8ca3e7 AM |
14133 | unsigned long br; |
| 14134 | ||
| 14135 | br = bfd_get_32 (input_bfd, | |
| 14136 | contents + rel->r_offset); | |
| 14137 | if ((br & 1) != 0) | |
| 41bd81ab | 14138 | { |
| ba8ca3e7 AM |
14139 | unsigned long nop; |
| 14140 | ||
| 14141 | nop = bfd_get_32 (input_bfd, | |
| 14142 | contents + rel->r_offset + 4); | |
| 14143 | if (nop == NOP | |
| 14144 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14145 | { |
| ba8ca3e7 AM |
14146 | if (h != NULL |
| 14147 | && (h == htab->tls_get_addr_fd | |
| 14148 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14149 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14150 | { |
| 14151 | /* Special stub used, leave nop alone. */ | |
| 14152 | } | |
| 14153 | else | |
| a078d95a AM |
14154 | bfd_put_32 (input_bfd, |
| 14155 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14156 | contents + rel->r_offset + 4); |
| 14157 | can_plt_call = TRUE; | |
| a7f2871e | 14158 | } |
| 41bd81ab | 14159 | } |
| 5bd4f169 | 14160 | } |
| 721956f4 | 14161 | |
| ba8ca3e7 | 14162 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14163 | { |
| ba8ca3e7 AM |
14164 | const char *name = h->elf.root.root.string; |
| 14165 | ||
| 14166 | if (*name == '.') | |
| 14167 | ++name; | |
| 14168 | ||
| 14169 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14170 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14171 | { |
| ba8ca3e7 AM |
14172 | /* Allow crt1 branch to go via a toc adjusting |
| 14173 | stub. Other calls that never return could do | |
| 14174 | the same, if we could detect such. */ | |
| b25116a9 | 14175 | can_plt_call = TRUE; |
| 6ab189d5 | 14176 | } |
| ba8ca3e7 AM |
14177 | } |
| 14178 | ||
| 14179 | if (!can_plt_call) | |
| 14180 | { | |
| 14181 | /* g++ as of 20130507 emits self-calls without a | |
| 14182 | following nop. This is arguably wrong since we | |
| 14183 | have conflicting information. On the one hand a | |
| 14184 | global symbol and on the other a local call | |
| 14185 | sequence, but don't error for this special case. | |
| 14186 | It isn't possible to cheaply verify we have | |
| 14187 | exactly such a call. Allow all calls to the same | |
| 14188 | section. */ | |
| 14189 | asection *code_sec = sec; | |
| 14190 | ||
| 14191 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14192 | { |
| ba8ca3e7 AM |
14193 | bfd_vma off = (relocation + addend |
| 14194 | - sec->output_section->vma | |
| 14195 | - sec->output_offset); | |
| bc30df16 | 14196 | |
| ba8ca3e7 | 14197 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14198 | } |
| ba8ca3e7 AM |
14199 | if (code_sec == input_section) |
| 14200 | can_plt_call = TRUE; | |
| 14201 | } | |
| 14202 | ||
| 14203 | if (!can_plt_call) | |
| 14204 | { | |
| 4805fc55 AM |
14205 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14206 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14207 | info->callbacks->einfo | |
| 695344c0 | 14208 | /* xgettext:c-format */ |
| 4805fc55 AM |
14209 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " |
| 14210 | "recompile with -fPIC\n"), | |
| 14211 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14212 | else | |
| 14213 | info->callbacks->einfo | |
| 695344c0 | 14214 | /* xgettext:c-format */ |
| 4805fc55 AM |
14215 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " |
| 14216 | "(-mcmodel=small toc adjust stub)\n"), | |
| 14217 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14218 | |
| 14219 | bfd_set_error (bfd_error_bad_value); | |
| 14220 | ret = FALSE; | |
| 721956f4 AM |
14221 | } |
| 14222 | ||
| b25116a9 | 14223 | if (can_plt_call |
| 794e51c0 AM |
14224 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14225 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14226 | unresolved_reloc = FALSE; |
| 14227 | } | |
| 14228 | ||
| 6abec6bc AM |
14229 | if ((stub_entry == NULL |
| 14230 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14231 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14232 | && get_opd_info (sec) != NULL) |
| 14233 | { | |
| 14234 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14235 | bfd_vma off = (relocation + addend |
| 14236 | - sec->output_section->vma | |
| 14237 | - sec->output_offset); | |
| aef36ac1 | 14238 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14239 | if (dest != (bfd_vma) -1) |
| 14240 | { | |
| 14241 | relocation = dest; | |
| 14242 | addend = 0; | |
| bc30df16 | 14243 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14244 | } |
| 14245 | } | |
| 14246 | ||
| b25116a9 AM |
14247 | /* If the branch is out of reach we ought to have a long |
| 14248 | branch stub. */ | |
| 14249 | from = (rel->r_offset | |
| 14250 | + input_section->output_offset | |
| 14251 | + input_section->output_section->vma); | |
| 14252 | ||
| 6911b7dc AM |
14253 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14254 | ? fdh->elf.other | |
| 14255 | : sym->st_other); | |
| 14256 | ||
| 6abec6bc AM |
14257 | if (stub_entry != NULL |
| 14258 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14259 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14260 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14261 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14262 | || (relocation + addend - from + max_br_offset | |
| 14263 | < 2 * max_br_offset))) | |
| 14264 | /* Don't use the stub if this branch is in range. */ | |
| 14265 | stub_entry = NULL; | |
| b25116a9 AM |
14266 | |
| 14267 | if (stub_entry != NULL) | |
| 14268 | { | |
| 14269 | /* Munge up the value and addend so that we call the stub | |
| 14270 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14271 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14272 | ||
| 14273 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14274 | relocation += (stub_sec->output_offset | |
| 14275 | + stub_sec->output_section->vma | |
| 14276 | + stub_sec->size - htab->sfpr->size | |
| 14277 | - htab->sfpr->output_offset | |
| 14278 | - htab->sfpr->output_section->vma); | |
| 14279 | else | |
| 14280 | relocation = (stub_entry->stub_offset | |
| 14281 | + stub_sec->output_offset | |
| 14282 | + stub_sec->output_section->vma); | |
| b25116a9 | 14283 | addend = 0; |
| bc30df16 | 14284 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14285 | |
| 794e51c0 AM |
14286 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 14287 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14288 | && (ALWAYS_EMIT_R2SAVE | |
| 14289 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14290 | && rel + 1 < relend |
| 14291 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14292 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14293 | relocation += 4; | |
| b25116a9 AM |
14294 | } |
| 14295 | ||
| 14296 | if (insn != 0) | |
| 14297 | { | |
| 794e51c0 | 14298 | if (is_isa_v2) |
| 721956f4 | 14299 | { |
| b25116a9 AM |
14300 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14301 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14302 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14303 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14304 | insn |= 0x02 << 21; | |
| 14305 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14306 | insn |= 0x08 << 21; | |
| 14307 | else | |
| 14308 | break; | |
| 14309 | } | |
| 14310 | else | |
| 14311 | { | |
| 14312 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14313 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14314 | insn ^= 0x01 << 21; |
| 721956f4 | 14315 | } |
| b25116a9 | 14316 | |
| 95f0d0d2 | 14317 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14318 | } |
| e86ce104 | 14319 | |
| 06da1e8e AM |
14320 | /* NOP out calls to undefined weak functions. |
| 14321 | We can thus call a weak function without first | |
| 14322 | checking whether the function is defined. */ | |
| b25116a9 | 14323 | else if (h != NULL |
| 039b3fef | 14324 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14325 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14326 | && r_type == R_PPC64_REL24 |
| 14327 | && relocation == 0 | |
| 4cc603a5 | 14328 | && addend == 0) |
| e86ce104 | 14329 | { |
| 95f0d0d2 | 14330 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14331 | goto copy_reloc; |
| e86ce104 | 14332 | } |
| 65f38f15 AM |
14333 | break; |
| 14334 | } | |
| 5bd4f169 | 14335 | |
| 65f38f15 | 14336 | /* Set `addend'. */ |
| 411e1bfb | 14337 | tls_type = 0; |
| 65f38f15 AM |
14338 | switch (r_type) |
| 14339 | { | |
| 14340 | default: | |
| 25f53a85 | 14341 | info->callbacks->einfo |
| 695344c0 | 14342 | /* xgettext:c-format */ |
| bc30df16 | 14343 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14344 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14345 | |
| 65f38f15 | 14346 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14347 | ret = FALSE; |
| c316a17c | 14348 | goto copy_reloc; |
| 5bd4f169 | 14349 | |
| 65f38f15 | 14350 | case R_PPC64_NONE: |
| 411e1bfb | 14351 | case R_PPC64_TLS: |
| 727fc41e AM |
14352 | case R_PPC64_TLSGD: |
| 14353 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14354 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14355 | case R_PPC64_GNU_VTINHERIT: |
| 14356 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14357 | case R_PPC64_ENTRY: |
| c316a17c | 14358 | goto copy_reloc; |
| 5bd4f169 AM |
14359 | |
| 14360 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14361 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14362 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14363 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14364 | case R_PPC64_GOT_TLSGD16: |
| 14365 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14366 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14367 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14368 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14369 | goto dogot; |
| 14370 | ||
| 14371 | case R_PPC64_GOT_TLSLD16: | |
| 14372 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14373 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14374 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14375 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14376 | goto dogot; |
| 14377 | ||
| 14378 | case R_PPC64_GOT_TPREL16_DS: | |
| 14379 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14380 | case R_PPC64_GOT_TPREL16_HI: | |
| 14381 | case R_PPC64_GOT_TPREL16_HA: | |
| 14382 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14383 | goto dogot; | |
| 14384 | ||
| 14385 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14386 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14387 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14388 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14389 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14390 | goto dogot; | |
| 14391 | ||
| 65f38f15 AM |
14392 | case R_PPC64_GOT16: |
| 14393 | case R_PPC64_GOT16_LO: | |
| 14394 | case R_PPC64_GOT16_HI: | |
| 14395 | case R_PPC64_GOT16_HA: | |
| 14396 | case R_PPC64_GOT16_DS: | |
| 14397 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14398 | dogot: |
| 5bd4f169 AM |
14399 | { |
| 14400 | /* Relocation is to the entry for this symbol in the global | |
| 14401 | offset table. */ | |
| e717da7e | 14402 | asection *got; |
| d881513a | 14403 | bfd_vma *offp; |
| 5bd4f169 | 14404 | bfd_vma off; |
| d881513a | 14405 | unsigned long indx = 0; |
| 927be08e | 14406 | struct got_entry *ent; |
| 65f38f15 | 14407 | |
| d881513a AM |
14408 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14409 | && (h == NULL | |
| f5385ebf | 14410 | || !h->elf.def_dynamic)) |
| 927be08e | 14411 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14412 | else |
| 5bd4f169 | 14413 | { |
| 5bd4f169 | 14414 | |
| d881513a AM |
14415 | if (h != NULL) |
| 14416 | { | |
| 14417 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 0e1862bb | 14418 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), |
| 039b3fef | 14419 | &h->elf) |
| 0e1862bb | 14420 | || (bfd_link_pic (info) |
| afe397ea | 14421 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14422 | /* This is actually a static link, or it is a |
| 14423 | -Bsymbolic link and the symbol is defined | |
| 14424 | locally, or the symbol was forced to be local | |
| 14425 | because of a version file. */ | |
| 14426 | ; | |
| 14427 | else | |
| 14428 | { | |
| 14acf4dc | 14429 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14430 | indx = h->elf.dynindx; |
| d881513a AM |
14431 | unresolved_reloc = FALSE; |
| 14432 | } | |
| 039b3fef | 14433 | ent = h->elf.got.glist; |
| d881513a | 14434 | } |
| 411e1bfb | 14435 | else |
| 5bd4f169 | 14436 | { |
| d881513a AM |
14437 | if (local_got_ents == NULL) |
| 14438 | abort (); | |
| 14439 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14440 | } |
| d881513a AM |
14441 | |
| 14442 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14443 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14444 | && ent->owner == input_bfd |
| d881513a AM |
14445 | && ent->tls_type == tls_type) |
| 14446 | break; | |
| 5bd4f169 | 14447 | } |
| 411e1bfb | 14448 | |
| 927be08e AM |
14449 | if (ent == NULL) |
| 14450 | abort (); | |
| 14451 | if (ent->is_indirect) | |
| 14452 | ent = ent->got.ent; | |
| 14453 | offp = &ent->got.offset; | |
| 14454 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14455 | if (got == NULL) |
| 14456 | abort (); | |
| 14457 | ||
| 411e1bfb AM |
14458 | /* The offset must always be a multiple of 8. We use the |
| 14459 | least significant bit to record whether we have already | |
| 14460 | processed this entry. */ | |
| d881513a | 14461 | off = *offp; |
| 411e1bfb AM |
14462 | if ((off & 1) != 0) |
| 14463 | off &= ~1; | |
| 5bd4f169 AM |
14464 | else |
| 14465 | { | |
| 411e1bfb AM |
14466 | /* Generate relocs for the dynamic linker, except in |
| 14467 | the case of TLSLD where we'll use one entry per | |
| 14468 | module. */ | |
| 25f23106 AM |
14469 | asection *relgot; |
| 14470 | bfd_boolean ifunc; | |
| e717da7e | 14471 | |
| d881513a | 14472 | *offp = off | 1; |
| 25f23106 AM |
14473 | relgot = NULL; |
| 14474 | ifunc = (h != NULL | |
| 14475 | ? h->elf.type == STT_GNU_IFUNC | |
| 14476 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14477 | if (ifunc) |
| 33e44f2e | 14478 | relgot = htab->elf.irelplt; |
| 0e1862bb | 14479 | else if ((bfd_link_pic (info) || indx != 0) |
| 19e08130 AM |
14480 | && (h == NULL |
| 14481 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14482 | && !h->elf.def_dynamic) | |
| 14483 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14484 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14485 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14486 | if (relgot != NULL) |
| 5bd4f169 | 14487 | { |
| e717da7e AM |
14488 | outrel.r_offset = (got->output_section->vma |
| 14489 | + got->output_offset | |
| 411e1bfb | 14490 | + off); |
| 4cc603a5 | 14491 | outrel.r_addend = addend; |
| d881513a | 14492 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14493 | { |
| 411e1bfb | 14494 | outrel.r_addend = 0; |
| e515b051 | 14495 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14496 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14497 | { | |
| e717da7e AM |
14498 | loc = relgot->contents; |
| 14499 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14500 | * sizeof (Elf64_External_Rela)); |
| 14501 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14502 | &outrel, loc); | |
| e515b051 | 14503 | outrel.r_offset += 8; |
| 4cc603a5 | 14504 | outrel.r_addend = addend; |
| d881513a AM |
14505 | outrel.r_info |
| 14506 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14507 | } |
| 411e1bfb | 14508 | } |
| 951fd09b | 14509 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14510 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14511 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14512 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14513 | else if (indx != 0) |
| 14514 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14515 | else | |
| 81407a69 | 14516 | { |
| 25f23106 AM |
14517 | if (ifunc) |
| 14518 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14519 | else | |
| 14520 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14521 | |
| 14522 | /* Write the .got section contents for the sake | |
| 14523 | of prelink. */ | |
| e717da7e | 14524 | loc = got->contents + off; |
| 23fbd6fa JJ |
14525 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14526 | loc); | |
| 81407a69 | 14527 | } |
| 81407a69 AM |
14528 | |
| 14529 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14530 | { |
| 14531 | outrel.r_addend += relocation; | |
| 14532 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14533 | { |
| 14534 | if (htab->elf.tls_sec == NULL) | |
| 14535 | outrel.r_addend = 0; | |
| 14536 | else | |
| 14537 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14538 | } | |
| e515b051 | 14539 | } |
| e717da7e AM |
14540 | loc = relgot->contents; |
| 14541 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14542 | * sizeof (Elf64_External_Rela)); |
| 14543 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14544 | } | |
| 14545 | ||
| ad8e1ba5 | 14546 | /* Init the .got section contents here if we're not |
| 81407a69 | 14547 | emitting a reloc. */ |
| d881513a | 14548 | else |
| 411e1bfb | 14549 | { |
| 4cc603a5 | 14550 | relocation += addend; |
| 7b609f53 AM |
14551 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14552 | relocation = 1; | |
| 14553 | else if (tls_type != 0) | |
| 411e1bfb | 14554 | { |
| 989f9879 AM |
14555 | if (htab->elf.tls_sec == NULL) |
| 14556 | relocation = 0; | |
| 14557 | else | |
| 14558 | { | |
| 14559 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14560 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14561 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14562 | } | |
| 5bd4f169 | 14563 | |
| 7b609f53 AM |
14564 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14565 | { | |
| 14566 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14567 | got->contents + off + 8); |
| 7b609f53 AM |
14568 | relocation = 1; |
| 14569 | } | |
| 411e1bfb | 14570 | } |
| 7b609f53 | 14571 | |
| 411e1bfb | 14572 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14573 | got->contents + off); |
| 5bd4f169 AM |
14574 | } |
| 14575 | } | |
| 14576 | ||
| 65f38f15 AM |
14577 | if (off >= (bfd_vma) -2) |
| 14578 | abort (); | |
| 14579 | ||
| bf102f86 | 14580 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14581 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14582 | } |
| 65f38f15 AM |
14583 | break; |
| 14584 | ||
| 14585 | case R_PPC64_PLT16_HA: | |
| 14586 | case R_PPC64_PLT16_HI: | |
| 14587 | case R_PPC64_PLT16_LO: | |
| 14588 | case R_PPC64_PLT32: | |
| 14589 | case R_PPC64_PLT64: | |
| 14590 | /* Relocation is to the entry for this symbol in the | |
| 14591 | procedure linkage table. */ | |
| cbf95972 AM |
14592 | { |
| 14593 | struct plt_entry **plt_list = NULL; | |
| 14594 | if (h != NULL) | |
| 14595 | plt_list = &h->elf.plt.plist; | |
| 14596 | else if (local_got_ents != NULL) | |
| 14597 | { | |
| 14598 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14599 | (local_got_ents + symtab_hdr->sh_info); | |
| 14600 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14601 | (local_plt + symtab_hdr->sh_info); | |
| 14602 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14603 | plt_list = local_plt + r_symndx; | |
| 14604 | } | |
| 14605 | if (plt_list) | |
| 14606 | { | |
| 14607 | struct plt_entry *ent; | |
| 65f38f15 | 14608 | |
| cbf95972 AM |
14609 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14610 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14611 | && ent->addend == orig_rel.r_addend) | |
| 14612 | { | |
| 14613 | asection *plt; | |
| 14614 | ||
| 14615 | plt = htab->elf.splt; | |
| 14616 | if (!htab->elf.dynamic_sections_created | |
| 14617 | || h == NULL | |
| 14618 | || h->elf.dynindx == -1) | |
| 14619 | plt = htab->elf.iplt; | |
| 14620 | relocation = (plt->output_section->vma | |
| 14621 | + plt->output_offset | |
| 14622 | + ent->plt.offset); | |
| 14623 | addend = 0; | |
| 14624 | unresolved_reloc = FALSE; | |
| 14625 | break; | |
| 14626 | } | |
| 14627 | } | |
| 14628 | } | |
| 65f38f15 | 14629 | break; |
| 5bd4f169 | 14630 | |
| 0b13192e AM |
14631 | case R_PPC64_TOC: |
| 14632 | /* Relocation value is TOC base. */ | |
| 14633 | relocation = TOCstart; | |
| cf35638d | 14634 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14635 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14636 | else if (unresolved_reloc) |
| 14637 | ; | |
| 6f20ed8a AM |
14638 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14639 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14640 | else |
| 14641 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14642 | goto dodyn; |
| 0b13192e | 14643 | |
| 5bd4f169 AM |
14644 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14645 | which is the address of the start of the TOC plus 0x8000. | |
| 14646 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14647 | in this order. */ | |
| 65f38f15 AM |
14648 | case R_PPC64_TOC16: |
| 14649 | case R_PPC64_TOC16_LO: | |
| 14650 | case R_PPC64_TOC16_HI: | |
| 14651 | case R_PPC64_TOC16_DS: | |
| 14652 | case R_PPC64_TOC16_LO_DS: | |
| 14653 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14654 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14655 | break; |
| 14656 | ||
| 14657 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14658 | case R_PPC64_SECTOFF: |
| 14659 | case R_PPC64_SECTOFF_LO: | |
| 14660 | case R_PPC64_SECTOFF_HI: | |
| 14661 | case R_PPC64_SECTOFF_DS: | |
| 14662 | case R_PPC64_SECTOFF_LO_DS: | |
| 14663 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14664 | if (sec != NULL) |
| 65f38f15 | 14665 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14666 | break; |
| 14667 | ||
| 25f23106 AM |
14668 | case R_PPC64_REL16: |
| 14669 | case R_PPC64_REL16_LO: | |
| 14670 | case R_PPC64_REL16_HI: | |
| 14671 | case R_PPC64_REL16_HA: | |
| a680de9a | 14672 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14673 | break; |
| 14674 | ||
| 721956f4 AM |
14675 | case R_PPC64_REL14: |
| 14676 | case R_PPC64_REL14_BRNTAKEN: | |
| 14677 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14678 | case R_PPC64_REL24: |
| 14679 | break; | |
| 14680 | ||
| 411e1bfb AM |
14681 | case R_PPC64_TPREL16: |
| 14682 | case R_PPC64_TPREL16_LO: | |
| 14683 | case R_PPC64_TPREL16_HI: | |
| 14684 | case R_PPC64_TPREL16_HA: | |
| 14685 | case R_PPC64_TPREL16_DS: | |
| 14686 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14687 | case R_PPC64_TPREL16_HIGH: |
| 14688 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14689 | case R_PPC64_TPREL16_HIGHER: |
| 14690 | case R_PPC64_TPREL16_HIGHERA: | |
| 14691 | case R_PPC64_TPREL16_HIGHEST: | |
| 14692 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14693 | if (h != NULL |
| 14694 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14695 | && h->elf.dynindx == -1) | |
| 14696 | { | |
| 14697 | /* Make this relocation against an undefined weak symbol | |
| 14698 | resolve to zero. This is really just a tweak, since | |
| 14699 | code using weak externs ought to check that they are | |
| 14700 | defined before using them. */ | |
| 14701 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14702 | ||
| 95f0d0d2 | 14703 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14704 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14705 | if (insn != 0) | |
| 95f0d0d2 | 14706 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14707 | break; |
| 14708 | } | |
| 989f9879 AM |
14709 | if (htab->elf.tls_sec != NULL) |
| 14710 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 0e1862bb | 14711 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
14712 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14713 | libs as they will result in DT_TEXTREL being set, but | |
| 14714 | support them anyway. */ | |
| 14715 | goto dodyn; | |
| 14716 | break; | |
| 14717 | ||
| 14718 | case R_PPC64_DTPREL16: | |
| 14719 | case R_PPC64_DTPREL16_LO: | |
| 14720 | case R_PPC64_DTPREL16_HI: | |
| 14721 | case R_PPC64_DTPREL16_HA: | |
| 14722 | case R_PPC64_DTPREL16_DS: | |
| 14723 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14724 | case R_PPC64_DTPREL16_HIGH: |
| 14725 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14726 | case R_PPC64_DTPREL16_HIGHER: |
| 14727 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14728 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14729 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14730 | if (htab->elf.tls_sec != NULL) |
| 14731 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14732 | break; |
| 14733 | ||
| 45965137 AM |
14734 | case R_PPC64_ADDR64_LOCAL: |
| 14735 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14736 | ? h->elf.other | |
| 14737 | : sym->st_other); | |
| 14738 | break; | |
| 14739 | ||
| e515b051 AM |
14740 | case R_PPC64_DTPMOD64: |
| 14741 | relocation = 1; | |
| 14742 | addend = 0; | |
| 14743 | goto dodyn; | |
| 14744 | ||
| 411e1bfb | 14745 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14746 | if (htab->elf.tls_sec != NULL) |
| 14747 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14748 | goto dodyn; |
| 14749 | ||
| 14750 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14751 | if (htab->elf.tls_sec != NULL) |
| 14752 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14753 | /* Fall through. */ |
| 411e1bfb | 14754 | |
| 65f38f15 AM |
14755 | /* Relocations that may need to be propagated if this is a |
| 14756 | dynamic object. */ | |
| 04c9666a | 14757 | case R_PPC64_REL30: |
| 65f38f15 AM |
14758 | case R_PPC64_REL32: |
| 14759 | case R_PPC64_REL64: | |
| 14760 | case R_PPC64_ADDR14: | |
| 14761 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14762 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14763 | case R_PPC64_ADDR16: | |
| 14764 | case R_PPC64_ADDR16_DS: | |
| 14765 | case R_PPC64_ADDR16_HA: | |
| 14766 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14767 | case R_PPC64_ADDR16_HIGH: |
| 14768 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14769 | case R_PPC64_ADDR16_HIGHER: |
| 14770 | case R_PPC64_ADDR16_HIGHERA: | |
| 14771 | case R_PPC64_ADDR16_HIGHEST: | |
| 14772 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14773 | case R_PPC64_ADDR16_LO: | |
| 14774 | case R_PPC64_ADDR16_LO_DS: | |
| 14775 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14776 | case R_PPC64_ADDR32: |
| 14777 | case R_PPC64_ADDR64: | |
| 14778 | case R_PPC64_UADDR16: | |
| 14779 | case R_PPC64_UADDR32: | |
| 14780 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14781 | dodyn: |
| 5d1634d7 | 14782 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14783 | break; |
| 14784 | ||
| 41bd81ab AM |
14785 | if (NO_OPD_RELOCS && is_opd) |
| 14786 | break; | |
| 14787 | ||
| 8a9e8e72 AM |
14788 | if (bfd_link_pic (info) |
| 14789 | ? ((h != NULL && pc_dynrelocs (h)) | |
| 14790 | || must_be_dyn_reloc (info, r_type)) | |
| 14791 | : (h != NULL | |
| 14792 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14793 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14794 | { |
| b34976b6 | 14795 | bfd_boolean skip, relocate; |
| 65f38f15 | 14796 | asection *sreloc; |
| 1cf1f670 | 14797 | bfd_vma out_off; |
| 65f38f15 AM |
14798 | |
| 14799 | /* When generating a dynamic object, these relocations | |
| 14800 | are copied into the output file to be resolved at run | |
| 14801 | time. */ | |
| 14802 | ||
| b34976b6 AM |
14803 | skip = FALSE; |
| 14804 | relocate = FALSE; | |
| 65f38f15 | 14805 | |
| 1cf1f670 AM |
14806 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14807 | input_section, rel->r_offset); | |
| 14808 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14809 | skip = TRUE; |
| 1cf1f670 | 14810 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14811 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14812 | out_off += (input_section->output_section->vma |
| 14813 | + input_section->output_offset); | |
| 14814 | outrel.r_offset = out_off; | |
| 411e1bfb | 14815 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14816 | |
| 1cf1f670 AM |
14817 | /* Optimize unaligned reloc use. */ |
| 14818 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14819 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14820 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14821 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14822 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14823 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14824 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14825 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14826 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14827 | ||
| 65f38f15 | 14828 | if (skip) |
| 0bb2d96a | 14829 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14830 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14831 | && !is_opd |
| 14832 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14833 | { |
| 14834 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14835 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14836 | } | |
| 65f38f15 AM |
14837 | else |
| 14838 | { | |
| 41bd81ab AM |
14839 | /* This symbol is local, or marked to become local, |
| 14840 | or this is an opd section reloc which must point | |
| 14841 | at a local function. */ | |
| 65f38f15 | 14842 | outrel.r_addend += relocation; |
| e86ce104 | 14843 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14844 | { |
| 3fad3c7c | 14845 | if (is_opd && h != NULL) |
| afbe61cf AM |
14846 | { |
| 14847 | /* Lie about opd entries. This case occurs | |
| 14848 | when building shared libraries and we | |
| 14849 | reference a function in another shared | |
| 3fad3c7c AM |
14850 | lib. The same thing happens for a weak |
| 14851 | definition in an application that's | |
| 14852 | overridden by a strong definition in a | |
| 14853 | shared lib. (I believe this is a generic | |
| 14854 | bug in binutils handling of weak syms.) | |
| 14855 | In these cases we won't use the opd | |
| 1e2f5b6e | 14856 | entry in this lib. */ |
| b34976b6 | 14857 | unresolved_reloc = FALSE; |
| afbe61cf | 14858 | } |
| 25f23106 AM |
14859 | if (!is_opd |
| 14860 | && r_type == R_PPC64_ADDR64 | |
| 14861 | && (h != NULL | |
| 14862 | ? h->elf.type == STT_GNU_IFUNC | |
| 14863 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14864 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14865 | else | |
| 14866 | { | |
| 14867 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14868 | |
| 25f23106 AM |
14869 | /* We need to relocate .opd contents for ld.so. |
| 14870 | Prelink also wants simple and consistent rules | |
| 14871 | for relocs. This make all RELATIVE relocs have | |
| 14872 | *r_offset equal to r_addend. */ | |
| 14873 | relocate = TRUE; | |
| 14874 | } | |
| 65f38f15 AM |
14875 | } |
| 14876 | else | |
| 14877 | { | |
| 14878 | long indx = 0; | |
| 14879 | ||
| 25f23106 AM |
14880 | if (h != NULL |
| 14881 | ? h->elf.type == STT_GNU_IFUNC | |
| 14882 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14883 | { | |
| 25f53a85 | 14884 | info->callbacks->einfo |
| 695344c0 | 14885 | /* xgettext:c-format */ |
| bc30df16 AM |
14886 | (_("%P: %H: %s for indirect " |
| 14887 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14888 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14889 | ppc64_elf_howto_table[r_type]->name, |
| 14890 | sym_name); | |
| 14891 | ret = FALSE; | |
| 14892 | } | |
| cf35638d | 14893 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14894 | ; |
| 14895 | else if (sec == NULL || sec->owner == NULL) | |
| 14896 | { | |
| 14897 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14898 | return FALSE; |
| 65f38f15 AM |
14899 | } |
| 14900 | else | |
| 14901 | { | |
| 14902 | asection *osec; | |
| 14903 | ||
| 14904 | osec = sec->output_section; | |
| 14905 | indx = elf_section_data (osec)->dynindx; | |
| 14906 | ||
| 74541ad4 AM |
14907 | if (indx == 0) |
| 14908 | { | |
| 14909 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14910 | && htab->elf.data_index_section != NULL) | |
| 14911 | osec = htab->elf.data_index_section; | |
| 14912 | else | |
| 14913 | osec = htab->elf.text_index_section; | |
| 14914 | indx = elf_section_data (osec)->dynindx; | |
| 14915 | } | |
| 14916 | BFD_ASSERT (indx != 0); | |
| 14917 | ||
| 65f38f15 AM |
14918 | /* We are turning this relocation into one |
| 14919 | against a section symbol, so subtract out | |
| 14920 | the output section's address but not the | |
| 14921 | offset of the input section in the output | |
| 14922 | section. */ | |
| 14923 | outrel.r_addend -= osec->vma; | |
| 14924 | } | |
| 14925 | ||
| 14926 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14927 | } | |
| 14928 | } | |
| 14929 | ||
| 14930 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14931 | if (h != NULL |
| 14932 | ? h->elf.type == STT_GNU_IFUNC | |
| 14933 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14934 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14935 | if (sreloc == NULL) |
| 14936 | abort (); | |
| 14937 | ||
| dfbb6ac9 AM |
14938 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14939 | >= sreloc->size) | |
| 14940 | abort (); | |
| 947216bf AM |
14941 | loc = sreloc->contents; |
| 14942 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14943 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14944 | ||
| 14945 | /* If this reloc is against an external symbol, it will | |
| 14946 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14947 | anything now. However, for the sake of prelink ensure |
| 14948 | that the section contents are a known value. */ | |
| 65f38f15 | 14949 | if (! relocate) |
| 81407a69 AM |
14950 | { |
| 14951 | unresolved_reloc = FALSE; | |
| 14952 | /* The value chosen here is quite arbitrary as ld.so | |
| 14953 | ignores section contents except for the special | |
| 14954 | case of .opd where the contents might be accessed | |
| 14955 | before relocation. Choose zero, as that won't | |
| 14956 | cause reloc overflow. */ | |
| 14957 | relocation = 0; | |
| 14958 | addend = 0; | |
| 14959 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14960 | to improve backward compatibility with older | |
| 14961 | versions of ld. */ | |
| 14962 | if (r_type == R_PPC64_ADDR64) | |
| 14963 | addend = outrel.r_addend; | |
| 14964 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14965 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14966 | addend = (input_section->output_section->vma |
| 14967 | + input_section->output_offset | |
| 14968 | + rel->r_offset); | |
| 81407a69 | 14969 | } |
| 65f38f15 | 14970 | } |
| 5bd4f169 AM |
14971 | break; |
| 14972 | ||
| 65f38f15 AM |
14973 | case R_PPC64_COPY: |
| 14974 | case R_PPC64_GLOB_DAT: | |
| 14975 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14976 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14977 | case R_PPC64_RELATIVE: |
| 14978 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14979 | files. */ | |
| ae9a127f | 14980 | /* Fall through. */ |
| 65f38f15 AM |
14981 | |
| 14982 | case R_PPC64_PLTGOT16: | |
| 14983 | case R_PPC64_PLTGOT16_DS: | |
| 14984 | case R_PPC64_PLTGOT16_HA: | |
| 14985 | case R_PPC64_PLTGOT16_HI: | |
| 14986 | case R_PPC64_PLTGOT16_LO: | |
| 14987 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14988 | case R_PPC64_PLTREL32: | |
| 14989 | case R_PPC64_PLTREL64: | |
| 14990 | /* These ones haven't been implemented yet. */ | |
| 14991 | ||
| 25f53a85 | 14992 | info->callbacks->einfo |
| 695344c0 | 14993 | /* xgettext:c-format */ |
| bc30df16 | 14994 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14995 | input_bfd, |
| 4ce794b7 | 14996 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14997 | |
| 14998 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14999 | ret = FALSE; |
| c316a17c | 15000 | goto copy_reloc; |
| 65f38f15 | 15001 | } |
| 5bd4f169 | 15002 | |
| 67f0cbdb AM |
15003 | /* Multi-instruction sequences that access the TOC can be |
| 15004 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 15005 | to nop; addi rb,r2,x; */ | |
| 15006 | switch (r_type) | |
| 15007 | { | |
| 15008 | default: | |
| 15009 | break; | |
| 15010 | ||
| 15011 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15012 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15013 | case R_PPC64_GOT_TPREL16_HI: | |
| 15014 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15015 | case R_PPC64_GOT16_HI: | |
| 15016 | case R_PPC64_TOC16_HI: | |
| 15017 | /* These relocs would only be useful if building up an | |
| 15018 | offset to later add to r2, perhaps in an indexed | |
| 15019 | addressing mode instruction. Don't try to optimize. | |
| 15020 | Unfortunately, the possibility of someone building up an | |
| 15021 | offset like this or even with the HA relocs, means that | |
| 15022 | we need to check the high insn when optimizing the low | |
| 15023 | insn. */ | |
| 15024 | break; | |
| 15025 | ||
| 15026 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15027 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15028 | case R_PPC64_GOT_TPREL16_HA: | |
| 15029 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15030 | case R_PPC64_GOT16_HA: | |
| 15031 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15032 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15033 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15034 | { |
| 15035 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15036 | bfd_put_32 (input_bfd, NOP, p); | |
| 15037 | } | |
| 67f0cbdb AM |
15038 | break; |
| 15039 | ||
| 15040 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15041 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15042 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15043 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15044 | case R_PPC64_GOT16_LO: | |
| 15045 | case R_PPC64_GOT16_LO_DS: | |
| 15046 | case R_PPC64_TOC16_LO: | |
| 15047 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15048 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15049 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15050 | { |
| 15051 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15052 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15053 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15054 | { | |
| 15055 | /* Transform addic to addi when we change reg. */ | |
| 15056 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15057 | insn |= (14u << 26) | (2 << 16); | |
| 15058 | } | |
| 15059 | else | |
| 67f0cbdb | 15060 | { |
| 98528052 AM |
15061 | insn &= ~(0x1f << 16); |
| 15062 | insn |= 2 << 16; | |
| 67f0cbdb | 15063 | } |
| 560c8763 | 15064 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15065 | } |
| 15066 | break; | |
| 15067 | } | |
| 15068 | ||
| 65f38f15 | 15069 | /* Do any further special processing. */ |
| b80eed39 | 15070 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
15071 | switch (r_type) |
| 15072 | { | |
| 15073 | default: | |
| 15074 | break; | |
| 15075 | ||
| 25f23106 | 15076 | case R_PPC64_REL16_HA: |
| a680de9a | 15077 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15078 | case R_PPC64_ADDR16_HA: |
| 15079 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15080 | case R_PPC64_ADDR16_HIGHERA: |
| 15081 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15082 | case R_PPC64_TOC16_HA: |
| 15083 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15084 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15085 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15086 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15087 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15088 | case R_PPC64_DTPREL16_HA: |
| 15089 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15090 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15091 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15092 | /* It's just possible that this symbol is a weak symbol |
| 15093 | that's not actually defined anywhere. In that case, | |
| 15094 | 'sec' would be NULL, and we should leave the symbol | |
| 15095 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15096 | if (sec == NULL) |
| 15097 | break; | |
| 1a0670f3 | 15098 | /* Fall through. */ |
| 5c5f6e17 AM |
15099 | |
| 15100 | case R_PPC64_GOT16_HA: | |
| 15101 | case R_PPC64_PLTGOT16_HA: | |
| 15102 | case R_PPC64_PLT16_HA: | |
| 15103 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15104 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15105 | case R_PPC64_GOT_TPREL16_HA: | |
| 15106 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15107 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15108 | Bits 0:15 are not used. */ | |
| 15109 | addend += 0x8000; | |
| 65f38f15 AM |
15110 | break; |
| 15111 | ||
| 15112 | case R_PPC64_ADDR16_DS: | |
| 15113 | case R_PPC64_ADDR16_LO_DS: | |
| 15114 | case R_PPC64_GOT16_DS: | |
| 15115 | case R_PPC64_GOT16_LO_DS: | |
| 15116 | case R_PPC64_PLT16_LO_DS: | |
| 15117 | case R_PPC64_SECTOFF_DS: | |
| 15118 | case R_PPC64_SECTOFF_LO_DS: | |
| 15119 | case R_PPC64_TOC16_DS: | |
| 15120 | case R_PPC64_TOC16_LO_DS: | |
| 15121 | case R_PPC64_PLTGOT16_DS: | |
| 15122 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15123 | case R_PPC64_GOT_TPREL16_DS: |
| 15124 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15125 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15126 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15127 | case R_PPC64_TPREL16_DS: | |
| 15128 | case R_PPC64_TPREL16_LO_DS: | |
| 15129 | case R_PPC64_DTPREL16_DS: | |
| 15130 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15131 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15132 | mask = 3; | |
| a680de9a PB |
15133 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15134 | the value must be a multiple of 16. This is somewhat of | |
| 15135 | a hack, but the "correct" way to do this by defining _DQ | |
| 15136 | forms of all the _DS relocs bloats all reloc switches in | |
| 15137 | this file. It doesn't make much sense to use these | |
| 15138 | relocs in data, so testing the insn should be safe. */ | |
| 15139 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15140 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15141 | mask = 15; |
| a680de9a PB |
15142 | relocation += addend; |
| 15143 | addend = insn & (mask ^ 3); | |
| 15144 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15145 | { |
| a680de9a | 15146 | relocation ^= relocation & mask; |
| 25f53a85 | 15147 | info->callbacks->einfo |
| 695344c0 | 15148 | /* xgettext:c-format */ |
| 8de848d8 | 15149 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15150 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15151 | howto->name, |
| adadcc0c | 15152 | mask + 1); |
| 65f38f15 | 15153 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15154 | ret = FALSE; |
| c316a17c | 15155 | goto copy_reloc; |
| 65f38f15 AM |
15156 | } |
| 15157 | break; | |
| 5bd4f169 AM |
15158 | } |
| 15159 | ||
| 239e1f3a AM |
15160 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15161 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15162 | not process them. */ | |
| 65f38f15 | 15163 | if (unresolved_reloc |
| 239e1f3a | 15164 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15165 | && h->elf.def_dynamic) |
| 15166 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15167 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15168 | { |
| 25f53a85 | 15169 | info->callbacks->einfo |
| 695344c0 | 15170 | /* xgettext:c-format */ |
| bc30df16 | 15171 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15172 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15173 | howto->name, |
| 039b3fef | 15174 | h->elf.root.root.string); |
| b34976b6 | 15175 | ret = FALSE; |
| 9c07fe7c | 15176 | } |
| 5bd4f169 | 15177 | |
| b80eed39 AM |
15178 | /* 16-bit fields in insns mostly have signed values, but a |
| 15179 | few insns have 16-bit unsigned values. Really, we should | |
| 15180 | have different reloc types. */ | |
| 15181 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15182 | && howto->dst_mask == 0xffff | |
| 15183 | && (input_section->flags & SEC_CODE) != 0) | |
| 15184 | { | |
| 15185 | enum complain_overflow complain = complain_overflow_signed; | |
| 15186 | ||
| 15187 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15188 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15189 | complain = complain_overflow_bitfield; | |
| 15190 | else if (howto->rightshift == 0 | |
| 15191 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15192 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15193 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15194 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15195 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15196 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15197 | complain = complain_overflow_unsigned; |
| 15198 | if (howto->complain_on_overflow != complain) | |
| 15199 | { | |
| 15200 | alt_howto = *howto; | |
| 15201 | alt_howto.complain_on_overflow = complain; | |
| 15202 | howto = &alt_howto; | |
| 15203 | } | |
| 15204 | } | |
| 15205 | ||
| a680de9a PB |
15206 | if (r_type == R_PPC64_REL16DX_HA) |
| 15207 | { | |
| 15208 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15209 | if (rel->r_offset + 4 > input_section->size) | |
| 15210 | r = bfd_reloc_outofrange; | |
| 15211 | else | |
| 15212 | { | |
| 15213 | relocation += addend; | |
| 15214 | relocation -= (rel->r_offset | |
| 15215 | + input_section->output_offset | |
| 15216 | + input_section->output_section->vma); | |
| 15217 | relocation = (bfd_signed_vma) relocation >> 16; | |
| 15218 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 15219 | insn &= ~0x1fffc1; | |
| 15220 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
| 15221 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
| 15222 | r = bfd_reloc_ok; | |
| 15223 | if (relocation + 0x8000 > 0xffff) | |
| 15224 | r = bfd_reloc_overflow; | |
| 15225 | } | |
| 15226 | } | |
| 15227 | else | |
| 15228 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15229 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15230 | |
| ef60b7ff | 15231 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15232 | { |
| bc30df16 | 15233 | char *more_info = NULL; |
| b80eed39 | 15234 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15235 | |
| 15236 | if (reloc_dest != DEST_NORMAL) | |
| 15237 | { | |
| 15238 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15239 | if (more_info != NULL) | |
| 15240 | { | |
| 15241 | strcpy (more_info, reloc_name); | |
| 15242 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15243 | ? " (OPD)" : " (stub)")); | |
| 15244 | reloc_name = more_info; | |
| 15245 | } | |
| 15246 | } | |
| 15247 | ||
| cd27b276 | 15248 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15249 | { |
| 8131c122 AM |
15250 | /* On code like "if (foo) foo();" don't report overflow |
| 15251 | on a branch to zero when foo is undefined. */ | |
| 15252 | if (!warned | |
| 15253 | && (reloc_dest == DEST_STUB | |
| 15254 | || !(h != NULL | |
| 15255 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15256 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15257 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15258 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15259 | sym_name, reloc_name, | |
| 15260 | orig_rel.r_addend, | |
| 15261 | input_bfd, input_section, | |
| 15262 | rel->r_offset); | |
| ef60b7ff AM |
15263 | } |
| 15264 | else | |
| 15265 | { | |
| 25f53a85 | 15266 | info->callbacks->einfo |
| 695344c0 | 15267 | /* xgettext:c-format */ |
| bc30df16 | 15268 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 15269 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15270 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15271 | ret = FALSE; |
| ef60b7ff | 15272 | } |
| bc30df16 AM |
15273 | if (more_info != NULL) |
| 15274 | free (more_info); | |
| 5bd4f169 | 15275 | } |
| c316a17c AM |
15276 | copy_reloc: |
| 15277 | if (wrel != rel) | |
| 15278 | *wrel = *rel; | |
| 15279 | } | |
| 15280 | ||
| 15281 | if (wrel != rel) | |
| 15282 | { | |
| 15283 | Elf_Internal_Shdr *rel_hdr; | |
| 15284 | size_t deleted = rel - wrel; | |
| 15285 | ||
| 15286 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15287 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15288 | if (rel_hdr->sh_size == 0) | |
| 15289 | { | |
| 15290 | /* It is too late to remove an empty reloc section. Leave | |
| 15291 | one NONE reloc. | |
| 15292 | ??? What is wrong with an empty section??? */ | |
| 15293 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15294 | deleted -= 1; | |
| 15295 | } | |
| 15296 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15297 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15298 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15299 | } |
| 15300 | ||
| 645ea6a9 AM |
15301 | /* If we're emitting relocations, then shortly after this function |
| 15302 | returns, reloc offsets and addends for this section will be | |
| 15303 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15304 | file rather than the input. Save a copy of the relocs for |
| 15305 | opd_entry_value. */ | |
| 0e1862bb | 15306 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15307 | { |
| 15308 | bfd_size_type amt; | |
| 15309 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15310 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15311 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15312 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15313 | if (rel == NULL) |
| 15314 | return FALSE; | |
| 15315 | memcpy (rel, relocs, amt); | |
| 15316 | } | |
| 5bd4f169 AM |
15317 | return ret; |
| 15318 | } | |
| 15319 | ||
| 754021d0 AM |
15320 | /* Adjust the value of any local symbols in opd sections. */ |
| 15321 | ||
| 6e0b88f1 | 15322 | static int |
| 754021d0 AM |
15323 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15324 | const char *name ATTRIBUTE_UNUSED, | |
| 15325 | Elf_Internal_Sym *elfsym, | |
| 15326 | asection *input_sec, | |
| 15327 | struct elf_link_hash_entry *h) | |
| 15328 | { | |
| 74f0fb50 AM |
15329 | struct _opd_sec_data *opd; |
| 15330 | long adjust; | |
| 754021d0 AM |
15331 | bfd_vma value; |
| 15332 | ||
| 4025353c | 15333 | if (h != NULL) |
| 6e0b88f1 | 15334 | return 1; |
| 4025353c | 15335 | |
| 74f0fb50 AM |
15336 | opd = get_opd_info (input_sec); |
| 15337 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15338 | return 1; |
| 754021d0 AM |
15339 | |
| 15340 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15341 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15342 | value -= input_sec->output_section->vma; |
| 15343 | ||
| 51aecdc5 | 15344 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15345 | if (adjust == -1) |
| 6e0b88f1 AM |
15346 | return 2; |
| 15347 | ||
| 15348 | elfsym->st_value += adjust; | |
| 15349 | return 1; | |
| 754021d0 AM |
15350 | } |
| 15351 | ||
| 5bd4f169 AM |
15352 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15353 | dynamic sections here. */ | |
| 15354 | ||
| b34976b6 | 15355 | static bfd_boolean |
| 4ce794b7 AM |
15356 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15357 | struct bfd_link_info *info, | |
| 15358 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 15359 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 15360 | { |
| 65f38f15 | 15361 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15362 | struct plt_entry *ent; |
| 15363 | Elf_Internal_Rela rela; | |
| 15364 | bfd_byte *loc; | |
| 5bd4f169 | 15365 | |
| 65f38f15 | 15366 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15367 | if (htab == NULL) |
| 15368 | return FALSE; | |
| 5bd4f169 | 15369 | |
| 8387904d AM |
15370 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15371 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15372 | { | |
| 15373 | /* This symbol has an entry in the procedure linkage | |
| 15374 | table. Set it up. */ | |
| e054468f AM |
15375 | if (!htab->elf.dynamic_sections_created |
| 15376 | || h->dynindx == -1) | |
| 15377 | { | |
| 15378 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15379 | && h->def_regular | |
| 15380 | && (h->root.type == bfd_link_hash_defined | |
| 15381 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15382 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15383 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15384 | + ent->plt.offset); |
| ee67d69a AM |
15385 | if (htab->opd_abi) |
| 15386 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15387 | else | |
| 15388 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15389 | rela.r_addend = (h->root.u.def.value |
| 15390 | + h->root.u.def.section->output_offset | |
| 15391 | + h->root.u.def.section->output_section->vma | |
| 15392 | + ent->addend); | |
| 33e44f2e AM |
15393 | loc = (htab->elf.irelplt->contents |
| 15394 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15395 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
15396 | } |
| 15397 | else | |
| 15398 | { | |
| 33e44f2e AM |
15399 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15400 | + htab->elf.splt->output_offset | |
| 25f23106 | 15401 | + ent->plt.offset); |
| e054468f AM |
15402 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15403 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15404 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15405 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15406 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 15407 | } |
| 8387904d | 15408 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15409 | |
| 15410 | if (!htab->opd_abi) | |
| 15411 | { | |
| 15412 | if (!h->def_regular) | |
| 15413 | { | |
| 15414 | /* Mark the symbol as undefined, rather than as | |
| 15415 | defined in glink. Leave the value if there were | |
| 15416 | any relocations where pointer equality matters | |
| 15417 | (this is a clue for the dynamic linker, to make | |
| 15418 | function pointer comparisons work between an | |
| 15419 | application and shared library), otherwise set it | |
| 15420 | to zero. */ | |
| 15421 | sym->st_shndx = SHN_UNDEF; | |
| 15422 | if (!h->pointer_equality_needed) | |
| 15423 | sym->st_value = 0; | |
| 15424 | else if (!h->ref_regular_nonweak) | |
| 15425 | { | |
| 15426 | /* This breaks function pointer comparisons, but | |
| 15427 | that is better than breaking tests for a NULL | |
| 15428 | function pointer. */ | |
| 15429 | sym->st_value = 0; | |
| 15430 | } | |
| 15431 | } | |
| 15432 | } | |
| 8387904d | 15433 | } |
| 5bd4f169 | 15434 | |
| f5385ebf | 15435 | if (h->needs_copy) |
| 5bd4f169 | 15436 | { |
| 65f38f15 | 15437 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15438 | |
| 65f38f15 AM |
15439 | if (h->dynindx == -1 |
| 15440 | || (h->root.type != bfd_link_hash_defined | |
| 15441 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15442 | || htab->relbss == NULL) |
| 65f38f15 | 15443 | abort (); |
| 5bd4f169 AM |
15444 | |
| 15445 | rela.r_offset = (h->root.u.def.value | |
| 15446 | + h->root.u.def.section->output_section->vma | |
| 15447 | + h->root.u.def.section->output_offset); | |
| 15448 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15449 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15450 | loc = htab->relbss->contents; |
| 15451 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15452 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15453 | } |
| 15454 | ||
| b34976b6 | 15455 | return TRUE; |
| 5bd4f169 AM |
15456 | } |
| 15457 | ||
| 65f38f15 AM |
15458 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15459 | dynamic linker, before writing them out. */ | |
| 15460 | ||
| 15461 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15462 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15463 | const asection *rel_sec, | |
| 15464 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15465 | { |
| 04c9666a | 15466 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15467 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15468 | ||
| 33e44f2e | 15469 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15470 | return reloc_class_ifunc; |
| a33d1f77 | 15471 | |
| 4ce794b7 | 15472 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15473 | switch (r_type) |
| 65f38f15 AM |
15474 | { |
| 15475 | case R_PPC64_RELATIVE: | |
| 15476 | return reloc_class_relative; | |
| 15477 | case R_PPC64_JMP_SLOT: | |
| 15478 | return reloc_class_plt; | |
| 15479 | case R_PPC64_COPY: | |
| 15480 | return reloc_class_copy; | |
| 15481 | default: | |
| 15482 | return reloc_class_normal; | |
| 15483 | } | |
| 15484 | } | |
| 15485 | ||
| 5bd4f169 AM |
15486 | /* Finish up the dynamic sections. */ |
| 15487 | ||
| b34976b6 | 15488 | static bfd_boolean |
| 4ce794b7 AM |
15489 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15490 | struct bfd_link_info *info) | |
| 5bd4f169 | 15491 | { |
| 65f38f15 AM |
15492 | struct ppc_link_hash_table *htab; |
| 15493 | bfd *dynobj; | |
| 5bd4f169 | 15494 | asection *sdyn; |
| 5bd4f169 | 15495 | |
| 65f38f15 | 15496 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15497 | if (htab == NULL) |
| 15498 | return FALSE; | |
| 15499 | ||
| 65f38f15 | 15500 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15501 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15502 | |
| 65f38f15 | 15503 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15504 | { |
| 5bd4f169 AM |
15505 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15506 | ||
| 33e44f2e | 15507 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15508 | abort (); |
| 5bd4f169 AM |
15509 | |
| 15510 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15511 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15512 | for (; dyncon < dynconend; dyncon++) |
| 15513 | { | |
| 15514 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15515 | asection *s; |
| 5bd4f169 AM |
15516 | |
| 15517 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15518 | ||
| 15519 | switch (dyn.d_tag) | |
| 15520 | { | |
| 65f38f15 AM |
15521 | default: |
| 15522 | continue; | |
| 5bd4f169 | 15523 | |
| 5d1634d7 | 15524 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15525 | s = htab->glink; |
| 6348e046 | 15526 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15527 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15528 | of glink rather than the first entry point, which is | |
| 15529 | what ld.so needs, and now have a bigger stub to | |
| 15530 | support automatic multiple TOCs. */ | |
| b9e5796b | 15531 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15532 | break; |
| 15533 | ||
| 19397422 AM |
15534 | case DT_PPC64_OPD: |
| 15535 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15536 | if (s == NULL) |
| 15537 | continue; | |
| 15538 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15539 | break; |
| 15540 | ||
| e8910a83 AM |
15541 | case DT_PPC64_OPT: |
| 15542 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15543 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15544 | break; | |
| 15545 | ||
| 19397422 AM |
15546 | case DT_PPC64_OPDSZ: |
| 15547 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15548 | if (s == NULL) |
| 15549 | continue; | |
| eea6121a | 15550 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15551 | break; |
| 15552 | ||
| 65f38f15 | 15553 | case DT_PLTGOT: |
| 33e44f2e | 15554 | s = htab->elf.splt; |
| 6348e046 | 15555 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15556 | break; |
| 15557 | ||
| 15558 | case DT_JMPREL: | |
| 33e44f2e | 15559 | s = htab->elf.srelplt; |
| 6348e046 | 15560 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15561 | break; |
| 5bd4f169 | 15562 | |
| 65f38f15 | 15563 | case DT_PLTRELSZ: |
| 33e44f2e | 15564 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15565 | break; |
| 5bd4f169 | 15566 | } |
| 5bd4f169 | 15567 | |
| 65f38f15 | 15568 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15569 | } |
| 5bd4f169 AM |
15570 | } |
| 15571 | ||
| 33e44f2e | 15572 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15573 | { |
| 15574 | /* Fill in the first entry in the global offset table. | |
| 15575 | We use it to hold the link-time TOCbase. */ | |
| 15576 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15577 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15578 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15579 | |
| 15580 | /* Set .got entry size. */ | |
| 33e44f2e | 15581 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15582 | } |
| 15583 | ||
| 33e44f2e | 15584 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15585 | { |
| 15586 | /* Set .plt entry size. */ | |
| 33e44f2e | 15587 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15588 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15589 | } |
| 15590 | ||
| 84f5d08e AM |
15591 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15592 | brlt ourselves if emitrelocations. */ | |
| 15593 | if (htab->brlt != NULL | |
| 15594 | && htab->brlt->reloc_count != 0 | |
| 15595 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15596 | htab->brlt, | |
| d4730f92 | 15597 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15598 | elf_section_data (htab->brlt)->relocs, |
| 15599 | NULL)) | |
| 15600 | return FALSE; | |
| 15601 | ||
| 176a0d42 AM |
15602 | if (htab->glink != NULL |
| 15603 | && htab->glink->reloc_count != 0 | |
| 15604 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15605 | htab->glink, | |
| d4730f92 | 15606 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15607 | elf_section_data (htab->glink)->relocs, |
| 15608 | NULL)) | |
| 15609 | return FALSE; | |
| 15610 | ||
| 58d180e8 | 15611 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15612 | && htab->glink_eh_frame->size != 0) |
| 15613 | { | |
| 15614 | bfd_vma val; | |
| 15615 | bfd_byte *p; | |
| 15616 | asection *stub_sec; | |
| 15617 | ||
| 15618 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15619 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15620 | stub_sec != NULL; | |
| 15621 | stub_sec = stub_sec->next) | |
| 15622 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15623 | { | |
| 15624 | /* FDE length. */ | |
| 15625 | p += 4; | |
| 15626 | /* CIE pointer. */ | |
| 15627 | p += 4; | |
| 15628 | /* Offset to stub section. */ | |
| 15629 | val = (stub_sec->output_section->vma | |
| 15630 | + stub_sec->output_offset); | |
| 15631 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15632 | + htab->glink_eh_frame->output_offset | |
| 15633 | + (p - htab->glink_eh_frame->contents)); | |
| 15634 | if (val + 0x80000000 > 0xffffffff) | |
| 15635 | { | |
| 15636 | info->callbacks->einfo | |
| 15637 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15638 | stub_sec->name); | |
| 15639 | return FALSE; | |
| 15640 | } | |
| 15641 | bfd_put_32 (dynobj, val, p); | |
| 15642 | p += 4; | |
| 15643 | /* stub section size. */ | |
| 15644 | p += 4; | |
| 15645 | /* Augmentation. */ | |
| 15646 | p += 1; | |
| 15647 | /* Pad. */ | |
| 15648 | p += 7; | |
| 15649 | } | |
| 15650 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15651 | { | |
| 15652 | /* FDE length. */ | |
| 15653 | p += 4; | |
| 15654 | /* CIE pointer. */ | |
| 15655 | p += 4; | |
| 15656 | /* Offset to .glink. */ | |
| 15657 | val = (htab->glink->output_section->vma | |
| 15658 | + htab->glink->output_offset | |
| 15659 | + 8); | |
| 15660 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15661 | + htab->glink_eh_frame->output_offset | |
| 15662 | + (p - htab->glink_eh_frame->contents)); | |
| 15663 | if (val + 0x80000000 > 0xffffffff) | |
| 15664 | { | |
| 15665 | info->callbacks->einfo | |
| 15666 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15667 | htab->glink->name); | |
| 15668 | return FALSE; | |
| 15669 | } | |
| 15670 | bfd_put_32 (dynobj, val, p); | |
| 15671 | p += 4; | |
| 15672 | /* .glink size. */ | |
| 15673 | p += 4; | |
| 15674 | /* Augmentation. */ | |
| 15675 | p += 1; | |
| 15676 | /* Ops. */ | |
| 15677 | p += 7; | |
| 15678 | } | |
| 15679 | ||
| 15680 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15681 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15682 | htab->glink_eh_frame, | |
| 15683 | htab->glink_eh_frame->contents)) | |
| 15684 | return FALSE; | |
| 15685 | } | |
| 58d180e8 | 15686 | |
| e717da7e | 15687 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15688 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15689 | bfd. */ | |
| c72f2fb2 | 15690 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15691 | { |
| 15692 | asection *s; | |
| 7b53ace3 | 15693 | |
| 0c8d6e5c | 15694 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15695 | continue; |
| 15696 | ||
| e717da7e AM |
15697 | s = ppc64_elf_tdata (dynobj)->got; |
| 15698 | if (s != NULL | |
| eea6121a | 15699 | && s->size != 0 |
| e717da7e AM |
15700 | && s->output_section != bfd_abs_section_ptr |
| 15701 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15702 | s->contents, s->output_offset, | |
| eea6121a | 15703 | s->size)) |
| e717da7e AM |
15704 | return FALSE; |
| 15705 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15706 | if (s != NULL | |
| eea6121a | 15707 | && s->size != 0 |
| e717da7e AM |
15708 | && s->output_section != bfd_abs_section_ptr |
| 15709 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15710 | s->contents, s->output_offset, | |
| eea6121a | 15711 | s->size)) |
| e717da7e AM |
15712 | return FALSE; |
| 15713 | } | |
| f6c52c13 | 15714 | |
| b34976b6 | 15715 | return TRUE; |
| 5bd4f169 AM |
15716 | } |
| 15717 | ||
| 5bd4f169 | 15718 | #include "elf64-target.h" |
| 7b8e7dad AM |
15719 | |
| 15720 | /* FreeBSD support */ | |
| 15721 | ||
| 15722 | #undef TARGET_LITTLE_SYM | |
| 15723 | #undef TARGET_LITTLE_NAME | |
| 15724 | ||
| 15725 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15726 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15727 | #undef TARGET_BIG_NAME |
| 15728 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15729 | ||
| 15730 | #undef ELF_OSABI | |
| 15731 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15732 | ||
| 15733 | #undef elf64_bed | |
| 15734 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15735 | ||
| 15736 | #include "elf64-target.h" | |
| 15737 |