projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 3a71aa26 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
| 794e51c0 | 3 | 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
| 5bd4f169 AM |
4 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 5 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 6 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 7 | |
| ae9a127f | 8 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 9 | |
| ae9a127f NC |
10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 12 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 13 | (at your option) any later version. |
| 5bd4f169 | 14 | |
| ae9a127f NC |
15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | GNU General Public License for more details. | |
| 5bd4f169 | 19 | |
| 4ce794b7 AM |
20 | You should have received a copy of the GNU General Public License along |
| 21 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 22 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 23 | |
| cd123cb7 | 24 | |
| 4ce794b7 AM |
25 | /* The 64-bit PowerPC ELF ABI may be found at |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 27 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 28 | |
| 3db64b00 | 29 | #include "sysdep.h" |
| 183e98be | 30 | #include <stdarg.h> |
| 5bd4f169 | 31 | #include "bfd.h" |
| 5bd4f169 AM |
32 | #include "bfdlink.h" |
| 33 | #include "libbfd.h" | |
| 34 | #include "elf-bfd.h" | |
| 04c9666a | 35 | #include "elf/ppc64.h" |
| 5d1634d7 | 36 | #include "elf64-ppc.h" |
| 58d180e8 | 37 | #include "dwarf2.h" |
| 5bd4f169 | 38 | |
| 805fc799 | 39 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 40 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
41 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 42 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 43 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 44 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 45 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 46 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 47 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 48 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 49 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 50 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 51 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 52 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 53 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 54 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 55 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 56 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 57 | static bfd_vma opd_entry_value |
| aef36ac1 | 58 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 59 | |
| ad8e1ba5 AM |
60 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec |
| 61 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
| 62 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
| 63 | #define TARGET_BIG_NAME "elf64-powerpc" | |
| 64 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 65 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
66 | #define ELF_MACHINE_CODE EM_PPC64 |
| 67 | #define ELF_MAXPAGESIZE 0x10000 | |
| 24718e3b | 68 | #define ELF_COMMONPAGESIZE 0x1000 |
| ad8e1ba5 AM |
69 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 70 | ||
| 71 | #define elf_backend_want_got_sym 0 | |
| 72 | #define elf_backend_want_plt_sym 0 | |
| 73 | #define elf_backend_plt_alignment 3 | |
| 74 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 75 | #define elf_backend_got_header_size 8 |
| ad8e1ba5 AM |
76 | #define elf_backend_can_gc_sections 1 |
| 77 | #define elf_backend_can_refcount 1 | |
| 78 | #define elf_backend_rela_normal 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 | |
| 88 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
| 90e3cdf2 | 89 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 90 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| ad8e1ba5 AM |
91 | |
| 92 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
93 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 94 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 95 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| ad8e1ba5 AM |
96 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
| 97 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
| 555cd476 | 98 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| 7d9616d7 | 99 | #define elf_backend_check_directives ppc64_elf_process_dot_syms |
| e5034e59 | 100 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 101 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 102 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| 74f0fb50 | 103 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 104 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 AM |
105 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| 106 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
| 107 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
| 108 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 109 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
110 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 111 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| 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 |
| e054468f | 120 | #define elf_backend_post_process_headers _bfd_elf_set_osabi |
| 6911b7dc | 121 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| ad8e1ba5 | 122 | |
| 5bd4f169 AM |
123 | /* The name of the dynamic interpreter. This is put in the .interp |
| 124 | section. */ | |
| 125 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 126 | ||
| 127 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| 128 | #define PLT_ENTRY_SIZE 24 | |
| 129 | ||
| 130 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| 5d1634d7 | 131 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
| 5bd4f169 AM |
132 | |
| 133 | /* TOC base pointers offset from start of TOC. */ | |
| 411e1bfb AM |
134 | #define TOC_BASE_OFF 0x8000 |
| 135 | ||
| 136 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 137 | #define TP_OFFSET 0x7000 | |
| 138 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 139 | |
| ad8e1ba5 AM |
140 | /* .plt call stub instructions. The normal stub is like this, but |
| 141 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 142 | insert an addi to adjust r11. */ |
| ad8e1ba5 | 143 | #define PLT_CALL_STUB_SIZE (7*4) |
| 5d1634d7 | 144 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ |
| 71a39c98 AM |
145 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 146 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 147 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 148 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 149 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
150 | #define BCTR 0x4e800420 /* bctr */ |
| 151 | ||
| 71a39c98 | 152 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
153 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 154 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 155 | ||
| 71a39c98 AM |
156 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 157 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 158 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
159 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 160 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 161 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 162 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 163 | ||
| 71a39c98 | 164 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
165 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 166 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 167 | ||
| ad8e1ba5 AM |
168 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ |
| 169 | ||
| ee4bf8d2 | 170 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 171 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
172 | /* 0: */ |
| 173 | /* .quad plt0-1f */ | |
| 174 | /* __glink: */ | |
| 175 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 176 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 177 | /* 1: */ | |
| 178 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 179 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 180 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
181 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 182 | /* ld %12,0(%11) */ | |
| 183 | /* ld %2,8(%11) */ | |
| 184 | /* mtctr %12 */ | |
| 185 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 186 | /* bctr */ |
| 5d1634d7 AM |
187 | |
| 188 | /* Pad with this. */ | |
| 189 | #define NOP 0x60000000 | |
| 190 | ||
| 721956f4 AM |
191 | /* Some other nops. */ |
| 192 | #define CROR_151515 0x4def7b82 | |
| 193 | #define CROR_313131 0x4ffffb82 | |
| 194 | ||
| cedb70c5 | 195 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
196 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 197 | #define B_DOT 0x48000000 /* b . */ | |
| 198 | ||
| 199 | /* After that, we need two instructions to load the index, followed by | |
| 200 | a branch. */ | |
| 201 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 202 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 203 | |
| deb0e272 AM |
204 | /* Instructions used by the save and restore reg functions. */ |
| 205 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 206 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 207 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 208 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
209 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 210 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
211 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 212 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 213 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 214 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
215 | #define BLR 0x4e800020 /* blr */ |
| 216 | ||
| 41bd81ab AM |
217 | /* Since .opd is an array of descriptors and each entry will end up |
| 218 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 219 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 220 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
221 | #ifndef NO_OPD_RELOCS |
| 222 | #define NO_OPD_RELOCS 0 | |
| 223 | #endif | |
| 5bd4f169 | 224 | \f |
| f5e87a1d | 225 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 226 | |
| 5bd4f169 | 227 | /* Relocation HOWTO's. */ |
| 04c9666a | 228 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
229 | |
| 230 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 231 | /* This reloc does nothing. */ | |
| 232 | HOWTO (R_PPC64_NONE, /* type */ | |
| 233 | 0, /* rightshift */ | |
| 411e1bfb AM |
234 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 235 | 32, /* bitsize */ | |
| b34976b6 | 236 | FALSE, /* pc_relative */ |
| 5bd4f169 | 237 | 0, /* bitpos */ |
| f5e87a1d | 238 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
239 | bfd_elf_generic_reloc, /* special_function */ |
| 240 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 241 | FALSE, /* partial_inplace */ |
| d006db6c | 242 | 0, /* src_mask */ |
| 5bd4f169 | 243 | 0, /* dst_mask */ |
| b34976b6 | 244 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
245 | |
| 246 | /* A standard 32 bit relocation. */ | |
| 247 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 248 | 0, /* rightshift */ | |
| 249 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 250 | 32, /* bitsize */ | |
| b34976b6 | 251 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
252 | 0, /* bitpos */ |
| 253 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 254 | bfd_elf_generic_reloc, /* special_function */ | |
| 255 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 256 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
257 | 0, /* src_mask */ |
| 258 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 259 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
260 | |
| 261 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 262 | FIXME: we don't check that, we just clear them. */ | |
| 263 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 264 | 0, /* rightshift */ | |
| 265 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 266 | 26, /* bitsize */ | |
| b34976b6 | 267 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
268 | 0, /* bitpos */ |
| 269 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 270 | bfd_elf_generic_reloc, /* special_function */ | |
| 271 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 272 | FALSE, /* partial_inplace */ |
| d006db6c | 273 | 0, /* src_mask */ |
| f5e87a1d | 274 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 275 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
276 | |
| 277 | /* A standard 16 bit relocation. */ | |
| 278 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 279 | 0, /* rightshift */ | |
| 280 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 281 | 16, /* bitsize */ | |
| b34976b6 | 282 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
283 | 0, /* bitpos */ |
| 284 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 285 | bfd_elf_generic_reloc, /* special_function */ | |
| 286 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 287 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
288 | 0, /* src_mask */ |
| 289 | 0xffff, /* dst_mask */ | |
| b34976b6 | 290 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
291 | |
| 292 | /* A 16 bit relocation without overflow. */ | |
| 293 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 294 | 0, /* rightshift */ | |
| 295 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 296 | 16, /* bitsize */ | |
| b34976b6 | 297 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
298 | 0, /* bitpos */ |
| 299 | complain_overflow_dont,/* complain_on_overflow */ | |
| 300 | bfd_elf_generic_reloc, /* special_function */ | |
| 301 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 302 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
303 | 0, /* src_mask */ |
| 304 | 0xffff, /* dst_mask */ | |
| b34976b6 | 305 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
306 | |
| 307 | /* Bits 16-31 of an address. */ | |
| 308 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 309 | 16, /* rightshift */ | |
| 310 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 311 | 16, /* bitsize */ | |
| b34976b6 | 312 | FALSE, /* pc_relative */ |
| 5bd4f169 | 313 | 0, /* bitpos */ |
| f9c6b907 | 314 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
315 | bfd_elf_generic_reloc, /* special_function */ |
| 316 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 317 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
318 | 0, /* src_mask */ |
| 319 | 0xffff, /* dst_mask */ | |
| b34976b6 | 320 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
321 | |
| 322 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 323 | bits, treated as a signed number, is negative. */ | |
| 324 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 325 | 16, /* rightshift */ | |
| 326 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 327 | 16, /* bitsize */ | |
| b34976b6 | 328 | FALSE, /* pc_relative */ |
| 5bd4f169 | 329 | 0, /* bitpos */ |
| f9c6b907 | 330 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 331 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 332 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 333 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
334 | 0, /* src_mask */ |
| 335 | 0xffff, /* dst_mask */ | |
| b34976b6 | 336 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
337 | |
| 338 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 339 | FIXME: we don't check that, we just clear them. */ | |
| 340 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 341 | 0, /* rightshift */ | |
| 342 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 343 | 16, /* bitsize */ | |
| b34976b6 | 344 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
345 | 0, /* bitpos */ |
| 346 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2441e016 | 347 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 348 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 349 | FALSE, /* partial_inplace */ |
| d006db6c | 350 | 0, /* src_mask */ |
| f5e87a1d | 351 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 352 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
353 | |
| 354 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 355 | indicate that the branch is expected to be taken. The lower two | |
| 356 | bits must be zero. */ | |
| 357 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 358 | 0, /* rightshift */ | |
| 359 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 360 | 16, /* bitsize */ | |
| b34976b6 | 361 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
362 | 0, /* bitpos */ |
| 363 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 364 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 365 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 366 | FALSE, /* partial_inplace */ |
| d006db6c | 367 | 0, /* src_mask */ |
| f5e87a1d | 368 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 369 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
370 | |
| 371 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 372 | indicate that the branch is not expected to be taken. The lower | |
| 373 | two bits must be zero. */ | |
| 374 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 375 | 0, /* rightshift */ | |
| 376 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 377 | 16, /* bitsize */ | |
| b34976b6 | 378 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
379 | 0, /* bitpos */ |
| 380 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 381 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 382 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 383 | FALSE, /* partial_inplace */ |
| d006db6c | 384 | 0, /* src_mask */ |
| f5e87a1d | 385 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 386 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
387 | |
| 388 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 389 | HOWTO (R_PPC64_REL24, /* type */ | |
| 390 | 0, /* rightshift */ | |
| 391 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 392 | 26, /* bitsize */ | |
| b34976b6 | 393 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
394 | 0, /* bitpos */ |
| 395 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 396 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 397 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 398 | FALSE, /* partial_inplace */ |
| d006db6c | 399 | 0, /* src_mask */ |
| f5e87a1d | 400 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 401 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
402 | |
| 403 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 404 | HOWTO (R_PPC64_REL14, /* type */ | |
| 405 | 0, /* rightshift */ | |
| 406 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 407 | 16, /* bitsize */ | |
| b34976b6 | 408 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
409 | 0, /* bitpos */ |
| 410 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 411 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 412 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 413 | FALSE, /* partial_inplace */ |
| d006db6c | 414 | 0, /* src_mask */ |
| f5e87a1d | 415 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 416 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
417 | |
| 418 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 419 | the branch is expected to be taken. The lower two bits must be | |
| 420 | zero. */ | |
| 421 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 422 | 0, /* rightshift */ | |
| 423 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 424 | 16, /* bitsize */ | |
| b34976b6 | 425 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
426 | 0, /* bitpos */ |
| 427 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 428 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 429 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 430 | FALSE, /* partial_inplace */ |
| d006db6c | 431 | 0, /* src_mask */ |
| f5e87a1d | 432 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 433 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
434 | |
| 435 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 436 | the branch is not expected to be taken. The lower two bits must | |
| 437 | be zero. */ | |
| 438 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 439 | 0, /* rightshift */ | |
| 440 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 441 | 16, /* bitsize */ | |
| b34976b6 | 442 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
443 | 0, /* bitpos */ |
| 444 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 445 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 446 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 447 | FALSE, /* partial_inplace */ |
| d006db6c | 448 | 0, /* src_mask */ |
| f5e87a1d | 449 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 450 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
451 | |
| 452 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 453 | symbol. */ | |
| 454 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 455 | 0, /* rightshift */ | |
| 456 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 457 | 16, /* bitsize */ | |
| b34976b6 | 458 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
459 | 0, /* bitpos */ |
| 460 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 461 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 462 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 463 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
464 | 0, /* src_mask */ |
| 465 | 0xffff, /* dst_mask */ | |
| b34976b6 | 466 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
467 | |
| 468 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 469 | the symbol. */ | |
| 470 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 471 | 0, /* rightshift */ | |
| 472 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 473 | 16, /* bitsize */ | |
| b34976b6 | 474 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
475 | 0, /* bitpos */ |
| 476 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 477 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 478 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 479 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
480 | 0, /* src_mask */ |
| 481 | 0xffff, /* dst_mask */ | |
| b34976b6 | 482 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
483 | |
| 484 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 485 | the symbol. */ | |
| 486 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 487 | 16, /* rightshift */ | |
| 488 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 489 | 16, /* bitsize */ | |
| b34976b6 | 490 | FALSE, /* pc_relative */ |
| 5bd4f169 | 491 | 0, /* bitpos */ |
| f9c6b907 | 492 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 493 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 494 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 495 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
496 | 0, /* src_mask */ |
| 497 | 0xffff, /* dst_mask */ | |
| b34976b6 | 498 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
499 | |
| 500 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 501 | the symbol. */ | |
| 502 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 503 | 16, /* rightshift */ | |
| 504 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 505 | 16, /* bitsize */ | |
| b34976b6 | 506 | FALSE, /* pc_relative */ |
| 5bd4f169 | 507 | 0, /* bitpos */ |
| f9c6b907 | 508 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 509 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 510 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 511 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
512 | 0, /* src_mask */ |
| 513 | 0xffff, /* dst_mask */ | |
| b34976b6 | 514 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
515 | |
| 516 | /* This is used only by the dynamic linker. The symbol should exist | |
| 517 | both in the object being run and in some shared library. The | |
| 518 | dynamic linker copies the data addressed by the symbol from the | |
| 519 | shared library into the object, because the object being | |
| 520 | run has to have the data at some particular address. */ | |
| 521 | HOWTO (R_PPC64_COPY, /* type */ | |
| 522 | 0, /* rightshift */ | |
| f5e87a1d AM |
523 | 0, /* this one is variable size */ |
| 524 | 0, /* bitsize */ | |
| b34976b6 | 525 | FALSE, /* pc_relative */ |
| 5bd4f169 | 526 | 0, /* bitpos */ |
| f5e87a1d AM |
527 | complain_overflow_dont, /* complain_on_overflow */ |
| 528 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 529 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 530 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
531 | 0, /* src_mask */ |
| 532 | 0, /* dst_mask */ | |
| b34976b6 | 533 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
534 | |
| 535 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 536 | entries. */ | |
| 537 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 538 | 0, /* rightshift */ | |
| 539 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 540 | 64, /* bitsize */ | |
| b34976b6 | 541 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
542 | 0, /* bitpos */ |
| 543 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 544 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 545 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 546 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 547 | 0, /* src_mask */ |
| f5e87a1d | 548 | ONES (64), /* dst_mask */ |
| b34976b6 | 549 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
550 | |
| 551 | /* Created by the link editor. Marks a procedure linkage table | |
| 552 | entry for a symbol. */ | |
| 553 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 554 | 0, /* rightshift */ | |
| 555 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 556 | 0, /* bitsize */ | |
| b34976b6 | 557 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
558 | 0, /* bitpos */ |
| 559 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 560 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 561 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 562 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
563 | 0, /* src_mask */ |
| 564 | 0, /* dst_mask */ | |
| b34976b6 | 565 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
566 | |
| 567 | /* Used only by the dynamic linker. When the object is run, this | |
| 568 | doubleword64 is set to the load address of the object, plus the | |
| 569 | addend. */ | |
| 570 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 571 | 0, /* rightshift */ | |
| 572 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 573 | 64, /* bitsize */ | |
| b34976b6 | 574 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
575 | 0, /* bitpos */ |
| 576 | complain_overflow_dont, /* complain_on_overflow */ | |
| 577 | bfd_elf_generic_reloc, /* special_function */ | |
| 578 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 579 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 580 | 0, /* src_mask */ |
| f5e87a1d | 581 | ONES (64), /* dst_mask */ |
| b34976b6 | 582 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
583 | |
| 584 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 585 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 586 | 0, /* rightshift */ | |
| 587 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 588 | 32, /* bitsize */ | |
| b34976b6 | 589 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
590 | 0, /* bitpos */ |
| 591 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 592 | bfd_elf_generic_reloc, /* special_function */ | |
| 593 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 594 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
595 | 0, /* src_mask */ |
| 596 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 597 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
598 | |
| 599 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 600 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 601 | 0, /* rightshift */ | |
| 602 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 603 | 16, /* bitsize */ | |
| b34976b6 | 604 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
605 | 0, /* bitpos */ |
| 606 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 607 | bfd_elf_generic_reloc, /* special_function */ | |
| 608 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 609 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
610 | 0, /* src_mask */ |
| 611 | 0xffff, /* dst_mask */ | |
| b34976b6 | 612 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
613 | |
| 614 | /* 32-bit PC relative. */ | |
| 615 | HOWTO (R_PPC64_REL32, /* type */ | |
| 616 | 0, /* rightshift */ | |
| 617 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 618 | 32, /* bitsize */ | |
| b34976b6 | 619 | TRUE, /* pc_relative */ |
| 5bd4f169 | 620 | 0, /* bitpos */ |
| cedb70c5 | 621 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
| 5bd4f169 AM |
622 | complain_overflow_signed, /* complain_on_overflow */ |
| 623 | bfd_elf_generic_reloc, /* special_function */ | |
| 624 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 625 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
626 | 0, /* src_mask */ |
| 627 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 628 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 629 | |
| 10ed1bba | 630 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
631 | HOWTO (R_PPC64_PLT32, /* type */ |
| 632 | 0, /* rightshift */ | |
| 633 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 634 | 32, /* bitsize */ | |
| b34976b6 | 635 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
636 | 0, /* bitpos */ |
| 637 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 638 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 639 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 640 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 641 | 0, /* src_mask */ |
| f5e87a1d | 642 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 643 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
644 | |
| 645 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 646 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 647 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 648 | 0, /* rightshift */ | |
| 649 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 650 | 32, /* bitsize */ | |
| b34976b6 | 651 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
652 | 0, /* bitpos */ |
| 653 | complain_overflow_signed, /* complain_on_overflow */ | |
| 654 | bfd_elf_generic_reloc, /* special_function */ | |
| 655 | "R_PPC64_PLTREL32", /* name */ | |
| b34976b6 | 656 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 657 | 0, /* src_mask */ |
| f5e87a1d | 658 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 659 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
660 | |
| 661 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 662 | the symbol. */ | |
| 663 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 664 | 0, /* rightshift */ | |
| 665 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 666 | 16, /* bitsize */ | |
| b34976b6 | 667 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
668 | 0, /* bitpos */ |
| 669 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 670 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 671 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 672 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
673 | 0, /* src_mask */ |
| 674 | 0xffff, /* dst_mask */ | |
| b34976b6 | 675 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
676 | |
| 677 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 678 | the symbol. */ | |
| 679 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 680 | 16, /* rightshift */ | |
| 681 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 682 | 16, /* bitsize */ | |
| b34976b6 | 683 | FALSE, /* pc_relative */ |
| 5bd4f169 | 684 | 0, /* bitpos */ |
| f9c6b907 | 685 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 686 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 687 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 688 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
689 | 0, /* src_mask */ |
| 690 | 0xffff, /* dst_mask */ | |
| b34976b6 | 691 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
692 | |
| 693 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 694 | the symbol. */ | |
| 695 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 696 | 16, /* rightshift */ | |
| 697 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 698 | 16, /* bitsize */ | |
| b34976b6 | 699 | FALSE, /* pc_relative */ |
| 5bd4f169 | 700 | 0, /* bitpos */ |
| f9c6b907 | 701 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 702 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 703 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 704 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
705 | 0, /* src_mask */ |
| 706 | 0xffff, /* dst_mask */ | |
| b34976b6 | 707 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 708 | |
| c061c2d8 | 709 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
710 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 711 | 0, /* rightshift */ | |
| c061c2d8 AM |
712 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 713 | 16, /* bitsize */ | |
| b34976b6 | 714 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
715 | 0, /* bitpos */ |
| 716 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 717 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 718 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 719 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 720 | 0, /* src_mask */ |
| c061c2d8 | 721 | 0xffff, /* dst_mask */ |
| b34976b6 | 722 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 723 | |
| c061c2d8 | 724 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
725 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 726 | 0, /* rightshift */ | |
| 727 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 728 | 16, /* bitsize */ | |
| b34976b6 | 729 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
730 | 0, /* bitpos */ |
| 731 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 732 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 733 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 734 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
735 | 0, /* src_mask */ |
| 736 | 0xffff, /* dst_mask */ | |
| b34976b6 | 737 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
738 | |
| 739 | /* 16-bit upper half section relative relocation. */ | |
| 740 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 741 | 16, /* rightshift */ | |
| 742 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 743 | 16, /* bitsize */ | |
| b34976b6 | 744 | FALSE, /* pc_relative */ |
| 5bd4f169 | 745 | 0, /* bitpos */ |
| f9c6b907 | 746 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 747 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 748 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 749 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
750 | 0, /* src_mask */ |
| 751 | 0xffff, /* dst_mask */ | |
| b34976b6 | 752 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
753 | |
| 754 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 755 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 756 | 16, /* rightshift */ | |
| 757 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 758 | 16, /* bitsize */ | |
| b34976b6 | 759 | FALSE, /* pc_relative */ |
| 5bd4f169 | 760 | 0, /* bitpos */ |
| f9c6b907 | 761 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 762 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 763 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 764 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
765 | 0, /* src_mask */ |
| 766 | 0xffff, /* dst_mask */ | |
| b34976b6 | 767 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 768 | |
| 04c9666a AM |
769 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 770 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
771 | 2, /* rightshift */ |
| 772 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 773 | 30, /* bitsize */ | |
| b34976b6 | 774 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
775 | 0, /* bitpos */ |
| 776 | complain_overflow_dont, /* complain_on_overflow */ | |
| 777 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 778 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 779 | FALSE, /* partial_inplace */ |
| d006db6c | 780 | 0, /* src_mask */ |
| 5bd4f169 | 781 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 782 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
783 | |
| 784 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 785 | ||
| 786 | /* A standard 64-bit relocation. */ | |
| 787 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 788 | 0, /* rightshift */ | |
| 789 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 790 | 64, /* bitsize */ | |
| b34976b6 | 791 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
792 | 0, /* bitpos */ |
| 793 | complain_overflow_dont, /* complain_on_overflow */ | |
| 794 | bfd_elf_generic_reloc, /* special_function */ | |
| 795 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 796 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 797 | 0, /* src_mask */ |
| f5e87a1d | 798 | ONES (64), /* dst_mask */ |
| b34976b6 | 799 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
800 | |
| 801 | /* The bits 32-47 of an address. */ | |
| 802 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 803 | 32, /* rightshift */ | |
| 804 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 805 | 16, /* bitsize */ | |
| b34976b6 | 806 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
807 | 0, /* bitpos */ |
| 808 | complain_overflow_dont, /* complain_on_overflow */ | |
| 809 | bfd_elf_generic_reloc, /* special_function */ | |
| 810 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 811 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
812 | 0, /* src_mask */ |
| 813 | 0xffff, /* dst_mask */ | |
| b34976b6 | 814 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
815 | |
| 816 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 817 | 16 bits, treated as a signed number, is negative. */ | |
| 818 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 819 | 32, /* rightshift */ | |
| 820 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 821 | 16, /* bitsize */ | |
| b34976b6 | 822 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
823 | 0, /* bitpos */ |
| 824 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 825 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 826 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 827 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
828 | 0, /* src_mask */ |
| 829 | 0xffff, /* dst_mask */ | |
| b34976b6 | 830 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
831 | |
| 832 | /* The bits 48-63 of an address. */ | |
| 833 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 834 | 48, /* rightshift */ | |
| 835 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 836 | 16, /* bitsize */ | |
| b34976b6 | 837 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
838 | 0, /* bitpos */ |
| 839 | complain_overflow_dont, /* complain_on_overflow */ | |
| 840 | bfd_elf_generic_reloc, /* special_function */ | |
| 841 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 842 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
843 | 0, /* src_mask */ |
| 844 | 0xffff, /* dst_mask */ | |
| b34976b6 | 845 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
846 | |
| 847 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 848 | 16 bits, treated as a signed number, is negative. */ | |
| 849 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 850 | 48, /* rightshift */ | |
| 851 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 852 | 16, /* bitsize */ | |
| b34976b6 | 853 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
854 | 0, /* bitpos */ |
| 855 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 856 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 857 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 858 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
859 | 0, /* src_mask */ |
| 860 | 0xffff, /* dst_mask */ | |
| b34976b6 | 861 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
862 | |
| 863 | /* Like ADDR64, but may be unaligned. */ | |
| 864 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 865 | 0, /* rightshift */ | |
| 866 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 867 | 64, /* bitsize */ | |
| b34976b6 | 868 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
869 | 0, /* bitpos */ |
| 870 | complain_overflow_dont, /* complain_on_overflow */ | |
| 871 | bfd_elf_generic_reloc, /* special_function */ | |
| 872 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 873 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 874 | 0, /* src_mask */ |
| f5e87a1d | 875 | ONES (64), /* dst_mask */ |
| b34976b6 | 876 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
877 | |
| 878 | /* 64-bit relative relocation. */ | |
| 879 | HOWTO (R_PPC64_REL64, /* type */ | |
| 880 | 0, /* rightshift */ | |
| 881 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 882 | 64, /* bitsize */ | |
| b34976b6 | 883 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
884 | 0, /* bitpos */ |
| 885 | complain_overflow_dont, /* complain_on_overflow */ | |
| 886 | bfd_elf_generic_reloc, /* special_function */ | |
| 887 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 888 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 889 | 0, /* src_mask */ |
| f5e87a1d | 890 | ONES (64), /* dst_mask */ |
| b34976b6 | 891 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 892 | |
| cedb70c5 | 893 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
894 | HOWTO (R_PPC64_PLT64, /* type */ |
| 895 | 0, /* rightshift */ | |
| 896 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 897 | 64, /* bitsize */ | |
| b34976b6 | 898 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
899 | 0, /* bitpos */ |
| 900 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 901 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 902 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 903 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 904 | 0, /* src_mask */ |
| f5e87a1d | 905 | ONES (64), /* dst_mask */ |
| b34976b6 | 906 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
907 | |
| 908 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 909 | table. */ | |
| 910 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 911 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 912 | 0, /* rightshift */ | |
| 913 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 914 | 64, /* bitsize */ | |
| b34976b6 | 915 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
916 | 0, /* bitpos */ |
| 917 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 918 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 919 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 920 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 921 | 0, /* src_mask */ |
| f5e87a1d | 922 | ONES (64), /* dst_mask */ |
| b34976b6 | 923 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
924 | |
| 925 | /* 16 bit TOC-relative relocation. */ | |
| 926 | ||
| 927 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 928 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 929 | 0, /* rightshift */ | |
| 930 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 931 | 16, /* bitsize */ | |
| b34976b6 | 932 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
933 | 0, /* bitpos */ |
| 934 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 935 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 936 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 937 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
938 | 0, /* src_mask */ |
| 939 | 0xffff, /* dst_mask */ | |
| b34976b6 | 940 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
941 | |
| 942 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 943 | ||
| 944 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 945 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 946 | 0, /* rightshift */ | |
| 947 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 948 | 16, /* bitsize */ | |
| b34976b6 | 949 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
950 | 0, /* bitpos */ |
| 951 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 952 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 953 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 954 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
955 | 0, /* src_mask */ |
| 956 | 0xffff, /* dst_mask */ | |
| b34976b6 | 957 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
958 | |
| 959 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 960 | ||
| 961 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 962 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 963 | 16, /* rightshift */ | |
| 964 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 965 | 16, /* bitsize */ | |
| b34976b6 | 966 | FALSE, /* pc_relative */ |
| 5bd4f169 | 967 | 0, /* bitpos */ |
| f9c6b907 | 968 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 969 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 970 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 971 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
972 | 0, /* src_mask */ |
| 973 | 0xffff, /* dst_mask */ | |
| b34976b6 | 974 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
975 | |
| 976 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 977 | contents of the low 16 bits, treated as a signed number, is | |
| 978 | negative. */ | |
| 979 | ||
| 980 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 981 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 982 | 16, /* rightshift */ | |
| 983 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 984 | 16, /* bitsize */ | |
| b34976b6 | 985 | FALSE, /* pc_relative */ |
| 5bd4f169 | 986 | 0, /* bitpos */ |
| f9c6b907 | 987 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 988 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 989 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 990 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
991 | 0, /* src_mask */ |
| 992 | 0xffff, /* dst_mask */ | |
| b34976b6 | 993 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
994 | |
| 995 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 996 | ||
| 997 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 998 | HOWTO (R_PPC64_TOC, /* type */ | |
| 999 | 0, /* rightshift */ | |
| 1000 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1001 | 64, /* bitsize */ | |
| b34976b6 | 1002 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1003 | 0, /* bitpos */ |
| 1004 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 1005 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1006 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1007 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1008 | 0, /* src_mask */ |
| f5e87a1d | 1009 | ONES (64), /* dst_mask */ |
| b34976b6 | 1010 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1011 | |
| 1012 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1013 | value to relocate may (!) refer to a PLT entry which the link | |
| 1014 | editor (a) may replace with the symbol value. If the link editor | |
| 1015 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1016 | entry and store the address to the new PLT entry in the GOT. | |
| 1017 | This permits lazy resolution of function symbols at run time. | |
| 1018 | The link editor may also skip all of this and just (c) emit a | |
| 1019 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1020 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1021 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1022 | 0, /* rightshift */ | |
| 1023 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1024 | 16, /* bitsize */ | |
| b34976b6 | 1025 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1026 | 0, /* bitpos */ |
| 1027 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1028 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1029 | "R_PPC64_PLTGOT16", /* name */ |
| 1030 | FALSE, /* partial_inplace */ | |
| 1031 | 0, /* src_mask */ | |
| 1032 | 0xffff, /* dst_mask */ | |
| 1033 | FALSE), /* pcrel_offset */ | |
| 1034 | ||
| 1035 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1036 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1037 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1038 | 0, /* rightshift */ | |
| 1039 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1040 | 16, /* bitsize */ | |
| 1041 | FALSE, /* pc_relative */ | |
| 1042 | 0, /* bitpos */ | |
| 1043 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1044 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1045 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1046 | FALSE, /* partial_inplace */ | |
| 1047 | 0, /* src_mask */ | |
| 1048 | 0xffff, /* dst_mask */ | |
| 1049 | FALSE), /* pcrel_offset */ | |
| 1050 | ||
| 1051 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1052 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1053 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1054 | 16, /* rightshift */ | |
| 1055 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1056 | 16, /* bitsize */ | |
| 1057 | FALSE, /* pc_relative */ | |
| 1058 | 0, /* bitpos */ | |
| f9c6b907 | 1059 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1060 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1061 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1062 | FALSE, /* partial_inplace */ | |
| 1063 | 0, /* src_mask */ | |
| 1064 | 0xffff, /* dst_mask */ | |
| 1065 | FALSE), /* pcrel_offset */ | |
| 1066 | ||
| 1067 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1068 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1069 | is negative. */ | |
| 1070 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1071 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1072 | 16, /* rightshift */ | |
| 1073 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1074 | 16, /* bitsize */ | |
| 1075 | FALSE, /* pc_relative */ | |
| 1076 | 0, /* bitpos */ | |
| f9c6b907 | 1077 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1078 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1079 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1080 | FALSE, /* partial_inplace */ | |
| 1081 | 0, /* src_mask */ | |
| 1082 | 0xffff, /* dst_mask */ | |
| 1083 | FALSE), /* pcrel_offset */ | |
| 1084 | ||
| 1085 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1086 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1087 | 0, /* rightshift */ | |
| 1088 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1089 | 16, /* bitsize */ | |
| 1090 | FALSE, /* pc_relative */ | |
| 1091 | 0, /* bitpos */ | |
| 1092 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1093 | bfd_elf_generic_reloc, /* special_function */ | |
| 1094 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1095 | FALSE, /* partial_inplace */ | |
| 1096 | 0, /* src_mask */ | |
| 1097 | 0xfffc, /* dst_mask */ | |
| 1098 | FALSE), /* pcrel_offset */ | |
| 1099 | ||
| 1100 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1101 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1102 | 0, /* rightshift */ | |
| 1103 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1104 | 16, /* bitsize */ | |
| 1105 | FALSE, /* pc_relative */ | |
| 1106 | 0, /* bitpos */ | |
| 1107 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1108 | bfd_elf_generic_reloc, /* special_function */ | |
| 1109 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1110 | FALSE, /* partial_inplace */ | |
| 1111 | 0, /* src_mask */ | |
| 1112 | 0xfffc, /* dst_mask */ | |
| 1113 | FALSE), /* pcrel_offset */ | |
| 1114 | ||
| 1115 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1116 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1117 | 0, /* rightshift */ | |
| 1118 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1119 | 16, /* bitsize */ | |
| 1120 | FALSE, /* pc_relative */ | |
| 1121 | 0, /* bitpos */ | |
| 1122 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1123 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1124 | "R_PPC64_GOT16_DS", /* name */ | |
| 1125 | FALSE, /* partial_inplace */ | |
| 1126 | 0, /* src_mask */ | |
| 1127 | 0xfffc, /* dst_mask */ | |
| 1128 | FALSE), /* pcrel_offset */ | |
| 1129 | ||
| 1130 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1131 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1132 | 0, /* rightshift */ | |
| 1133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1134 | 16, /* bitsize */ | |
| 1135 | FALSE, /* pc_relative */ | |
| 1136 | 0, /* bitpos */ | |
| 1137 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1138 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1139 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1140 | FALSE, /* partial_inplace */ | |
| 1141 | 0, /* src_mask */ | |
| 1142 | 0xfffc, /* dst_mask */ | |
| 1143 | FALSE), /* pcrel_offset */ | |
| 1144 | ||
| 1145 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1146 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1147 | 0, /* rightshift */ | |
| 1148 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1149 | 16, /* bitsize */ | |
| 1150 | FALSE, /* pc_relative */ | |
| 1151 | 0, /* bitpos */ | |
| 1152 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1153 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1154 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1155 | FALSE, /* partial_inplace */ | |
| 1156 | 0, /* src_mask */ | |
| 1157 | 0xfffc, /* dst_mask */ | |
| 1158 | FALSE), /* pcrel_offset */ | |
| 1159 | ||
| 1160 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1161 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1162 | 0, /* rightshift */ | |
| 1163 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1164 | 16, /* bitsize */ | |
| 1165 | FALSE, /* pc_relative */ | |
| 1166 | 0, /* bitpos */ | |
| 1167 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1168 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1169 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1170 | FALSE, /* partial_inplace */ | |
| 1171 | 0, /* src_mask */ | |
| 1172 | 0xfffc, /* dst_mask */ | |
| 1173 | FALSE), /* pcrel_offset */ | |
| 1174 | ||
| 1175 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1176 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1177 | 0, /* rightshift */ | |
| 1178 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1179 | 16, /* bitsize */ | |
| 1180 | FALSE, /* pc_relative */ | |
| 1181 | 0, /* bitpos */ | |
| 1182 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1183 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1184 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1185 | FALSE, /* partial_inplace */ | |
| 1186 | 0, /* src_mask */ | |
| 1187 | 0xfffc, /* dst_mask */ | |
| 1188 | FALSE), /* pcrel_offset */ | |
| 1189 | ||
| 1190 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1191 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1192 | 0, /* rightshift */ | |
| 1193 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1194 | 16, /* bitsize */ | |
| 1195 | FALSE, /* pc_relative */ | |
| 1196 | 0, /* bitpos */ | |
| 1197 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1198 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1199 | "R_PPC64_TOC16_DS", /* name */ | |
| 1200 | FALSE, /* partial_inplace */ | |
| 1201 | 0, /* src_mask */ | |
| 1202 | 0xfffc, /* dst_mask */ | |
| 1203 | FALSE), /* pcrel_offset */ | |
| 1204 | ||
| 1205 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1206 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1207 | 0, /* rightshift */ | |
| 1208 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1209 | 16, /* bitsize */ | |
| 1210 | FALSE, /* pc_relative */ | |
| 1211 | 0, /* bitpos */ | |
| 1212 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1213 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1214 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1215 | FALSE, /* partial_inplace */ | |
| 1216 | 0, /* src_mask */ | |
| 1217 | 0xfffc, /* dst_mask */ | |
| 1218 | FALSE), /* pcrel_offset */ | |
| 1219 | ||
| 1220 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1221 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1222 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1223 | 0, /* rightshift */ |
| 1224 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1225 | 16, /* bitsize */ | |
| 1226 | FALSE, /* pc_relative */ | |
| 1227 | 0, /* bitpos */ | |
| 1228 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1229 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1230 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1231 | FALSE, /* partial_inplace */ | |
| 1232 | 0, /* src_mask */ | |
| 1233 | 0xfffc, /* dst_mask */ | |
| 1234 | FALSE), /* pcrel_offset */ | |
| 1235 | ||
| 1236 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1237 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1238 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1239 | 0, /* rightshift */ | |
| 1240 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1241 | 16, /* bitsize */ | |
| 1242 | FALSE, /* pc_relative */ | |
| 1243 | 0, /* bitpos */ | |
| 1244 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1245 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1246 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1247 | FALSE, /* partial_inplace */ | |
| 1248 | 0, /* src_mask */ | |
| 1249 | 0xfffc, /* dst_mask */ | |
| 1250 | FALSE), /* pcrel_offset */ | |
| 1251 | ||
| 727fc41e | 1252 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1253 | HOWTO (R_PPC64_TLS, |
| 1254 | 0, /* rightshift */ | |
| 1255 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1256 | 32, /* bitsize */ | |
| 1257 | FALSE, /* pc_relative */ | |
| 1258 | 0, /* bitpos */ | |
| 1259 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1260 | bfd_elf_generic_reloc, /* special_function */ | |
| 1261 | "R_PPC64_TLS", /* name */ | |
| 1262 | FALSE, /* partial_inplace */ | |
| 1263 | 0, /* src_mask */ | |
| 1264 | 0, /* dst_mask */ | |
| 1265 | FALSE), /* pcrel_offset */ | |
| 1266 | ||
| 727fc41e AM |
1267 | HOWTO (R_PPC64_TLSGD, |
| 1268 | 0, /* rightshift */ | |
| 1269 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1270 | 32, /* bitsize */ | |
| 1271 | FALSE, /* pc_relative */ | |
| 1272 | 0, /* bitpos */ | |
| 1273 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1274 | bfd_elf_generic_reloc, /* special_function */ | |
| 1275 | "R_PPC64_TLSGD", /* name */ | |
| 1276 | FALSE, /* partial_inplace */ | |
| 1277 | 0, /* src_mask */ | |
| 1278 | 0, /* dst_mask */ | |
| 1279 | FALSE), /* pcrel_offset */ | |
| 1280 | ||
| 1281 | HOWTO (R_PPC64_TLSLD, | |
| 1282 | 0, /* rightshift */ | |
| 1283 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1284 | 32, /* bitsize */ | |
| 1285 | FALSE, /* pc_relative */ | |
| 1286 | 0, /* bitpos */ | |
| 1287 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1288 | bfd_elf_generic_reloc, /* special_function */ | |
| 1289 | "R_PPC64_TLSLD", /* name */ | |
| 1290 | FALSE, /* partial_inplace */ | |
| 1291 | 0, /* src_mask */ | |
| 1292 | 0, /* dst_mask */ | |
| 1293 | FALSE), /* pcrel_offset */ | |
| 1294 | ||
| 3b421ab3 AM |
1295 | HOWTO (R_PPC64_TOCSAVE, |
| 1296 | 0, /* rightshift */ | |
| 1297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1298 | 32, /* bitsize */ | |
| 1299 | FALSE, /* pc_relative */ | |
| 1300 | 0, /* bitpos */ | |
| 1301 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1302 | bfd_elf_generic_reloc, /* special_function */ | |
| 1303 | "R_PPC64_TOCSAVE", /* name */ | |
| 1304 | FALSE, /* partial_inplace */ | |
| 1305 | 0, /* src_mask */ | |
| 1306 | 0, /* dst_mask */ | |
| 1307 | FALSE), /* pcrel_offset */ | |
| 1308 | ||
| 411e1bfb AM |
1309 | /* Computes the load module index of the load module that contains the |
| 1310 | definition of its TLS sym. */ | |
| 1311 | HOWTO (R_PPC64_DTPMOD64, | |
| 1312 | 0, /* rightshift */ | |
| 1313 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1314 | 64, /* bitsize */ | |
| 1315 | FALSE, /* pc_relative */ | |
| 1316 | 0, /* bitpos */ | |
| 1317 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1318 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1319 | "R_PPC64_DTPMOD64", /* name */ | |
| 1320 | FALSE, /* partial_inplace */ | |
| 1321 | 0, /* src_mask */ | |
| 1322 | ONES (64), /* dst_mask */ | |
| 1323 | FALSE), /* pcrel_offset */ | |
| 1324 | ||
| 1325 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1326 | of sym+add and the base address of the thread-local storage block that | |
| 1327 | contains the definition of sym, minus 0x8000. */ | |
| 1328 | HOWTO (R_PPC64_DTPREL64, | |
| 1329 | 0, /* rightshift */ | |
| 1330 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1331 | 64, /* bitsize */ | |
| 1332 | FALSE, /* pc_relative */ | |
| 1333 | 0, /* bitpos */ | |
| 1334 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1335 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1336 | "R_PPC64_DTPREL64", /* name */ | |
| 1337 | FALSE, /* partial_inplace */ | |
| 1338 | 0, /* src_mask */ | |
| 1339 | ONES (64), /* dst_mask */ | |
| 1340 | FALSE), /* pcrel_offset */ | |
| 1341 | ||
| 1342 | /* A 16 bit dtprel reloc. */ | |
| 1343 | HOWTO (R_PPC64_DTPREL16, | |
| 1344 | 0, /* rightshift */ | |
| 1345 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1346 | 16, /* bitsize */ | |
| 1347 | FALSE, /* pc_relative */ | |
| 1348 | 0, /* bitpos */ | |
| 1349 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1350 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1351 | "R_PPC64_DTPREL16", /* name */ | |
| 1352 | FALSE, /* partial_inplace */ | |
| 1353 | 0, /* src_mask */ | |
| 1354 | 0xffff, /* dst_mask */ | |
| 1355 | FALSE), /* pcrel_offset */ | |
| 1356 | ||
| 1357 | /* Like DTPREL16, but no overflow. */ | |
| 1358 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1359 | 0, /* rightshift */ | |
| 1360 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1361 | 16, /* bitsize */ | |
| 1362 | FALSE, /* pc_relative */ | |
| 1363 | 0, /* bitpos */ | |
| 1364 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1365 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1366 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1367 | FALSE, /* partial_inplace */ | |
| 1368 | 0, /* src_mask */ | |
| 1369 | 0xffff, /* dst_mask */ | |
| 1370 | FALSE), /* pcrel_offset */ | |
| 1371 | ||
| 1372 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1373 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1374 | 16, /* rightshift */ | |
| 1375 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1376 | 16, /* bitsize */ | |
| 1377 | FALSE, /* pc_relative */ | |
| 1378 | 0, /* bitpos */ | |
| f9c6b907 | 1379 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1380 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1381 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1382 | FALSE, /* partial_inplace */ | |
| 1383 | 0, /* src_mask */ | |
| 1384 | 0xffff, /* dst_mask */ | |
| 1385 | FALSE), /* pcrel_offset */ | |
| 1386 | ||
| 1387 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1388 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1389 | 16, /* rightshift */ | |
| 1390 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1391 | 16, /* bitsize */ | |
| 1392 | FALSE, /* pc_relative */ | |
| 1393 | 0, /* bitpos */ | |
| f9c6b907 | 1394 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1395 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1396 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1397 | FALSE, /* partial_inplace */ | |
| 1398 | 0, /* src_mask */ | |
| 1399 | 0xffff, /* dst_mask */ | |
| 1400 | FALSE), /* pcrel_offset */ | |
| 1401 | ||
| 1402 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1403 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1404 | 32, /* rightshift */ | |
| 1405 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1406 | 16, /* bitsize */ | |
| 1407 | FALSE, /* pc_relative */ | |
| 1408 | 0, /* bitpos */ | |
| 1409 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1410 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1411 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1412 | FALSE, /* partial_inplace */ | |
| 1413 | 0, /* src_mask */ | |
| 1414 | 0xffff, /* dst_mask */ | |
| 1415 | FALSE), /* pcrel_offset */ | |
| 1416 | ||
| 1417 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1418 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1419 | 32, /* rightshift */ | |
| 1420 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1421 | 16, /* bitsize */ | |
| 1422 | FALSE, /* pc_relative */ | |
| 1423 | 0, /* bitpos */ | |
| 1424 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1425 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1426 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1427 | FALSE, /* partial_inplace */ | |
| 1428 | 0, /* src_mask */ | |
| 1429 | 0xffff, /* dst_mask */ | |
| 1430 | FALSE), /* pcrel_offset */ | |
| 1431 | ||
| 1432 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1433 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1434 | 48, /* rightshift */ | |
| 1435 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1436 | 16, /* bitsize */ | |
| 1437 | FALSE, /* pc_relative */ | |
| 1438 | 0, /* bitpos */ | |
| 1439 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1440 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1441 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1442 | FALSE, /* partial_inplace */ | |
| 1443 | 0, /* src_mask */ | |
| 1444 | 0xffff, /* dst_mask */ | |
| 1445 | FALSE), /* pcrel_offset */ | |
| 1446 | ||
| 1447 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1448 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1449 | 48, /* rightshift */ | |
| 1450 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1451 | 16, /* bitsize */ | |
| 1452 | FALSE, /* pc_relative */ | |
| 1453 | 0, /* bitpos */ | |
| 1454 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1455 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1456 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1457 | FALSE, /* partial_inplace */ | |
| 1458 | 0, /* src_mask */ | |
| 1459 | 0xffff, /* dst_mask */ | |
| 1460 | FALSE), /* pcrel_offset */ | |
| 1461 | ||
| 1462 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1463 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1464 | 0, /* rightshift */ | |
| 1465 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1466 | 16, /* bitsize */ | |
| 1467 | FALSE, /* pc_relative */ | |
| 1468 | 0, /* bitpos */ | |
| 1469 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1470 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1471 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1472 | FALSE, /* partial_inplace */ | |
| 1473 | 0, /* src_mask */ | |
| 1474 | 0xfffc, /* dst_mask */ | |
| 1475 | FALSE), /* pcrel_offset */ | |
| 1476 | ||
| 1477 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1478 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1479 | 0, /* rightshift */ | |
| 1480 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1481 | 16, /* bitsize */ | |
| 1482 | FALSE, /* pc_relative */ | |
| 1483 | 0, /* bitpos */ | |
| 1484 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1485 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1486 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1487 | FALSE, /* partial_inplace */ | |
| 1488 | 0, /* src_mask */ | |
| 1489 | 0xfffc, /* dst_mask */ | |
| 1490 | FALSE), /* pcrel_offset */ | |
| 1491 | ||
| 1492 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1493 | sym+add and the value of the thread pointer (r13). */ | |
| 1494 | HOWTO (R_PPC64_TPREL64, | |
| 1495 | 0, /* rightshift */ | |
| 1496 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1497 | 64, /* bitsize */ | |
| 1498 | FALSE, /* pc_relative */ | |
| 1499 | 0, /* bitpos */ | |
| 1500 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1501 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1502 | "R_PPC64_TPREL64", /* name */ | |
| 1503 | FALSE, /* partial_inplace */ | |
| 1504 | 0, /* src_mask */ | |
| 1505 | ONES (64), /* dst_mask */ | |
| 1506 | FALSE), /* pcrel_offset */ | |
| 1507 | ||
| 1508 | /* A 16 bit tprel reloc. */ | |
| 1509 | HOWTO (R_PPC64_TPREL16, | |
| 1510 | 0, /* rightshift */ | |
| 1511 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1512 | 16, /* bitsize */ | |
| 1513 | FALSE, /* pc_relative */ | |
| 1514 | 0, /* bitpos */ | |
| 1515 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1516 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1517 | "R_PPC64_TPREL16", /* name */ | |
| 1518 | FALSE, /* partial_inplace */ | |
| 1519 | 0, /* src_mask */ | |
| 1520 | 0xffff, /* dst_mask */ | |
| 1521 | FALSE), /* pcrel_offset */ | |
| 1522 | ||
| 1523 | /* Like TPREL16, but no overflow. */ | |
| 1524 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1525 | 0, /* rightshift */ | |
| 1526 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1527 | 16, /* bitsize */ | |
| 1528 | FALSE, /* pc_relative */ | |
| 1529 | 0, /* bitpos */ | |
| 1530 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1531 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1532 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1533 | FALSE, /* partial_inplace */ | |
| 1534 | 0, /* src_mask */ | |
| 1535 | 0xffff, /* dst_mask */ | |
| 1536 | FALSE), /* pcrel_offset */ | |
| 1537 | ||
| 1538 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1539 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1540 | 16, /* rightshift */ | |
| 1541 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1542 | 16, /* bitsize */ | |
| 1543 | FALSE, /* pc_relative */ | |
| 1544 | 0, /* bitpos */ | |
| f9c6b907 | 1545 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1546 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1547 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1548 | FALSE, /* partial_inplace */ | |
| 1549 | 0, /* src_mask */ | |
| 1550 | 0xffff, /* dst_mask */ | |
| 1551 | FALSE), /* pcrel_offset */ | |
| 1552 | ||
| 1553 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1554 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1555 | 16, /* rightshift */ | |
| 1556 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1557 | 16, /* bitsize */ | |
| 1558 | FALSE, /* pc_relative */ | |
| 1559 | 0, /* bitpos */ | |
| f9c6b907 | 1560 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1561 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1562 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1563 | FALSE, /* partial_inplace */ | |
| 1564 | 0, /* src_mask */ | |
| 1565 | 0xffff, /* dst_mask */ | |
| 1566 | FALSE), /* pcrel_offset */ | |
| 1567 | ||
| 1568 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1569 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1570 | 32, /* rightshift */ | |
| 1571 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1572 | 16, /* bitsize */ | |
| 1573 | FALSE, /* pc_relative */ | |
| 1574 | 0, /* bitpos */ | |
| 1575 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1576 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1577 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1578 | FALSE, /* partial_inplace */ | |
| 1579 | 0, /* src_mask */ | |
| 1580 | 0xffff, /* dst_mask */ | |
| 1581 | FALSE), /* pcrel_offset */ | |
| 1582 | ||
| 1583 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1584 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1585 | 32, /* rightshift */ | |
| 1586 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1587 | 16, /* bitsize */ | |
| 1588 | FALSE, /* pc_relative */ | |
| 1589 | 0, /* bitpos */ | |
| 1590 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1591 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1592 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1593 | FALSE, /* partial_inplace */ | |
| 1594 | 0, /* src_mask */ | |
| 1595 | 0xffff, /* dst_mask */ | |
| 1596 | FALSE), /* pcrel_offset */ | |
| 1597 | ||
| 1598 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1599 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1600 | 48, /* rightshift */ | |
| 1601 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1602 | 16, /* bitsize */ | |
| 1603 | FALSE, /* pc_relative */ | |
| 1604 | 0, /* bitpos */ | |
| 1605 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1606 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1607 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1608 | FALSE, /* partial_inplace */ | |
| 1609 | 0, /* src_mask */ | |
| 1610 | 0xffff, /* dst_mask */ | |
| 1611 | FALSE), /* pcrel_offset */ | |
| 1612 | ||
| 1613 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1614 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1615 | 48, /* rightshift */ | |
| 1616 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1617 | 16, /* bitsize */ | |
| 1618 | FALSE, /* pc_relative */ | |
| 1619 | 0, /* bitpos */ | |
| 1620 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1621 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1622 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1623 | FALSE, /* partial_inplace */ | |
| 1624 | 0, /* src_mask */ | |
| 1625 | 0xffff, /* dst_mask */ | |
| 1626 | FALSE), /* pcrel_offset */ | |
| 1627 | ||
| 1628 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1629 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1630 | 0, /* rightshift */ | |
| 1631 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1632 | 16, /* bitsize */ | |
| 1633 | FALSE, /* pc_relative */ | |
| 1634 | 0, /* bitpos */ | |
| 1635 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1636 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1637 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1638 | FALSE, /* partial_inplace */ | |
| 1639 | 0, /* src_mask */ | |
| 1640 | 0xfffc, /* dst_mask */ | |
| 1641 | FALSE), /* pcrel_offset */ | |
| 1642 | ||
| 1643 | /* Like TPREL16_DS, but no overflow. */ | |
| 1644 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1645 | 0, /* rightshift */ | |
| 1646 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1647 | 16, /* bitsize */ | |
| 1648 | FALSE, /* pc_relative */ | |
| 1649 | 0, /* bitpos */ | |
| 1650 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1651 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1652 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1653 | FALSE, /* partial_inplace */ | |
| 1654 | 0, /* src_mask */ | |
| 1655 | 0xfffc, /* dst_mask */ | |
| 1656 | FALSE), /* pcrel_offset */ | |
| 1657 | ||
| 1658 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1659 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1660 | to the first entry relative to the TOC base (r2). */ | |
| 1661 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1662 | 0, /* rightshift */ | |
| 1663 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1664 | 16, /* bitsize */ | |
| 1665 | FALSE, /* pc_relative */ | |
| 1666 | 0, /* bitpos */ | |
| 1667 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1668 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1669 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1670 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1671 | 0, /* src_mask */ |
| 1672 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1673 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1674 | |
| 411e1bfb AM |
1675 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1676 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1677 | 0, /* rightshift */ |
| 1678 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1679 | 16, /* bitsize */ | |
| b34976b6 | 1680 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1681 | 0, /* bitpos */ |
| 1682 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1683 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1684 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1685 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1686 | 0, /* src_mask */ |
| 1687 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1688 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1689 | |
| 411e1bfb AM |
1690 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1691 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1692 | 16, /* rightshift */ |
| 1693 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1694 | 16, /* bitsize */ | |
| b34976b6 | 1695 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1696 | 0, /* bitpos */ |
| f9c6b907 | 1697 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1698 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1699 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1700 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1701 | 0, /* src_mask */ |
| 1702 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1703 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1704 | |
| 411e1bfb AM |
1705 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1706 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1707 | 16, /* rightshift */ |
| 1708 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1709 | 16, /* bitsize */ | |
| b34976b6 | 1710 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1711 | 0, /* bitpos */ |
| f9c6b907 | 1712 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1713 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1714 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1715 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1716 | 0, /* src_mask */ |
| 1717 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1718 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1719 | |
| 411e1bfb AM |
1720 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1721 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1722 | first entry relative to the TOC base (r2). */ | |
| 1723 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1724 | 0, /* rightshift */ |
| 1725 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1726 | 16, /* bitsize */ | |
| b34976b6 | 1727 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1728 | 0, /* bitpos */ |
| 411e1bfb AM |
1729 | complain_overflow_signed, /* complain_on_overflow */ |
| 1730 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1731 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1732 | FALSE, /* partial_inplace */ |
| d006db6c | 1733 | 0, /* src_mask */ |
| 411e1bfb | 1734 | 0xffff, /* dst_mask */ |
| b34976b6 | 1735 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1736 | |
| 411e1bfb AM |
1737 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1738 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1739 | 0, /* rightshift */ |
| 1740 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1741 | 16, /* bitsize */ | |
| b34976b6 | 1742 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1743 | 0, /* bitpos */ |
| 411e1bfb AM |
1744 | complain_overflow_dont, /* complain_on_overflow */ |
| 1745 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1746 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1747 | FALSE, /* partial_inplace */ |
| d006db6c | 1748 | 0, /* src_mask */ |
| 411e1bfb | 1749 | 0xffff, /* dst_mask */ |
| b34976b6 | 1750 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1751 | |
| 411e1bfb AM |
1752 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1753 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1754 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1755 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1756 | 16, /* bitsize */ | |
| b34976b6 | 1757 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1758 | 0, /* bitpos */ |
| f9c6b907 | 1759 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1760 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1761 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1762 | FALSE, /* partial_inplace */ |
| d006db6c | 1763 | 0, /* src_mask */ |
| 411e1bfb | 1764 | 0xffff, /* dst_mask */ |
| b34976b6 | 1765 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1766 | |
| 411e1bfb AM |
1767 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1768 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1769 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1770 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1771 | 16, /* bitsize */ | |
| b34976b6 | 1772 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1773 | 0, /* bitpos */ |
| f9c6b907 | 1774 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1775 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1776 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1777 | FALSE, /* partial_inplace */ |
| d006db6c | 1778 | 0, /* src_mask */ |
| 411e1bfb | 1779 | 0xffff, /* dst_mask */ |
| b34976b6 | 1780 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1781 | |
| 411e1bfb AM |
1782 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1783 | the offset to the entry relative to the TOC base (r2). */ | |
| 1784 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1785 | 0, /* rightshift */ |
| 1786 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1787 | 16, /* bitsize */ | |
| b34976b6 | 1788 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1789 | 0, /* bitpos */ |
| 411e1bfb | 1790 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1791 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1792 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1793 | FALSE, /* partial_inplace */ |
| d006db6c | 1794 | 0, /* src_mask */ |
| 5bd4f169 | 1795 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1796 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1797 | |
| 411e1bfb AM |
1798 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1799 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1800 | 0, /* rightshift */ |
| c061c2d8 AM |
1801 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1802 | 16, /* bitsize */ | |
| b34976b6 | 1803 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1804 | 0, /* bitpos */ |
| 411e1bfb AM |
1805 | complain_overflow_dont, /* complain_on_overflow */ |
| 1806 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1807 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1808 | FALSE, /* partial_inplace */ |
| d006db6c | 1809 | 0, /* src_mask */ |
| c061c2d8 | 1810 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1811 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1812 | |
| 411e1bfb AM |
1813 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1814 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1815 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1816 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1817 | 16, /* bitsize */ | |
| b34976b6 | 1818 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1819 | 0, /* bitpos */ |
| f9c6b907 | 1820 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1821 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1822 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1823 | FALSE, /* partial_inplace */ |
| d006db6c | 1824 | 0, /* src_mask */ |
| 411e1bfb | 1825 | 0xffff, /* dst_mask */ |
| b34976b6 | 1826 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1827 | |
| 411e1bfb AM |
1828 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1829 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1830 | 16, /* rightshift */ | |
| 1831 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1832 | 16, /* bitsize */ | |
| 1833 | FALSE, /* pc_relative */ | |
| 1834 | 0, /* bitpos */ | |
| f9c6b907 | 1835 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1836 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1837 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1838 | FALSE, /* partial_inplace */ | |
| 1839 | 0, /* src_mask */ | |
| 1840 | 0xffff, /* dst_mask */ | |
| 1841 | FALSE), /* pcrel_offset */ | |
| 1842 | ||
| 1843 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1844 | offset to the entry relative to the TOC base (r2). */ | |
| 1845 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1846 | 0, /* rightshift */ |
| 1847 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1848 | 16, /* bitsize */ | |
| b34976b6 | 1849 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1850 | 0, /* bitpos */ |
| 1851 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1852 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1853 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1854 | FALSE, /* partial_inplace */ |
| d006db6c | 1855 | 0, /* src_mask */ |
| ad8e1ba5 | 1856 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1857 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1858 | |
| 411e1bfb AM |
1859 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1860 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1861 | 0, /* rightshift */ |
| 1862 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1863 | 16, /* bitsize */ | |
| b34976b6 | 1864 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1865 | 0, /* bitpos */ |
| 1866 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1867 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1868 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1869 | FALSE, /* partial_inplace */ |
| d006db6c | 1870 | 0, /* src_mask */ |
| ad8e1ba5 | 1871 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1872 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1873 | |
| 411e1bfb AM |
1874 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1875 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1876 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1877 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1878 | 16, /* bitsize */ | |
| b34976b6 | 1879 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1880 | 0, /* bitpos */ |
| f9c6b907 | 1881 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1882 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1883 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1884 | FALSE, /* partial_inplace */ |
| d006db6c | 1885 | 0, /* src_mask */ |
| 411e1bfb | 1886 | 0xffff, /* dst_mask */ |
| b34976b6 | 1887 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1888 | |
| 411e1bfb AM |
1889 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1890 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1891 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1892 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1893 | 16, /* bitsize */ | |
| b34976b6 | 1894 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1895 | 0, /* bitpos */ |
| f9c6b907 | 1896 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1897 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1898 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1899 | FALSE, /* partial_inplace */ |
| d006db6c | 1900 | 0, /* src_mask */ |
| 411e1bfb | 1901 | 0xffff, /* dst_mask */ |
| b34976b6 | 1902 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1903 | |
| 25f23106 AM |
1904 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1905 | 0, /* rightshift */ | |
| 1906 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1907 | 0, /* bitsize */ | |
| 1908 | FALSE, /* pc_relative */ | |
| 1909 | 0, /* bitpos */ | |
| 1910 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1911 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1912 | "R_PPC64_JMP_IREL", /* name */ | |
| 1913 | FALSE, /* partial_inplace */ | |
| 1914 | 0, /* src_mask */ | |
| 1915 | 0, /* dst_mask */ | |
| 1916 | FALSE), /* pcrel_offset */ | |
| 1917 | ||
| e054468f AM |
1918 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1919 | 0, /* rightshift */ | |
| 1920 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1921 | 64, /* bitsize */ | |
| 1922 | FALSE, /* pc_relative */ | |
| 1923 | 0, /* bitpos */ | |
| 1924 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1925 | bfd_elf_generic_reloc, /* special_function */ | |
| 1926 | "R_PPC64_IRELATIVE", /* name */ | |
| 1927 | FALSE, /* partial_inplace */ | |
| 1928 | 0, /* src_mask */ | |
| 1929 | ONES (64), /* dst_mask */ | |
| 1930 | FALSE), /* pcrel_offset */ | |
| 1931 | ||
| 25f23106 AM |
1932 | /* A 16 bit relative relocation. */ |
| 1933 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1934 | 0, /* rightshift */ | |
| 1935 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1936 | 16, /* bitsize */ | |
| 1937 | TRUE, /* pc_relative */ | |
| 1938 | 0, /* bitpos */ | |
| 1939 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1940 | bfd_elf_generic_reloc, /* special_function */ | |
| 1941 | "R_PPC64_REL16", /* name */ | |
| 1942 | FALSE, /* partial_inplace */ | |
| 1943 | 0, /* src_mask */ | |
| 1944 | 0xffff, /* dst_mask */ | |
| 1945 | TRUE), /* pcrel_offset */ | |
| 1946 | ||
| 1947 | /* A 16 bit relative relocation without overflow. */ | |
| 1948 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1949 | 0, /* rightshift */ | |
| 1950 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1951 | 16, /* bitsize */ | |
| 1952 | TRUE, /* pc_relative */ | |
| 1953 | 0, /* bitpos */ | |
| 1954 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1955 | bfd_elf_generic_reloc, /* special_function */ | |
| 1956 | "R_PPC64_REL16_LO", /* name */ | |
| 1957 | FALSE, /* partial_inplace */ | |
| 1958 | 0, /* src_mask */ | |
| 1959 | 0xffff, /* dst_mask */ | |
| 1960 | TRUE), /* pcrel_offset */ | |
| 1961 | ||
| 1962 | /* The high order 16 bits of a relative address. */ | |
| 1963 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 1964 | 16, /* rightshift */ | |
| 1965 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1966 | 16, /* bitsize */ | |
| 1967 | TRUE, /* pc_relative */ | |
| 1968 | 0, /* bitpos */ | |
| f9c6b907 | 1969 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1970 | bfd_elf_generic_reloc, /* special_function */ |
| 1971 | "R_PPC64_REL16_HI", /* name */ | |
| 1972 | FALSE, /* partial_inplace */ | |
| 1973 | 0, /* src_mask */ | |
| 1974 | 0xffff, /* dst_mask */ | |
| 1975 | TRUE), /* pcrel_offset */ | |
| 1976 | ||
| 1977 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 1978 | the low 16 bits, treated as a signed number, is negative. */ | |
| 1979 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 1980 | 16, /* rightshift */ | |
| 1981 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1982 | 16, /* bitsize */ | |
| 1983 | TRUE, /* pc_relative */ | |
| 1984 | 0, /* bitpos */ | |
| f9c6b907 | 1985 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1986 | ppc64_elf_ha_reloc, /* special_function */ |
| 1987 | "R_PPC64_REL16_HA", /* name */ | |
| 1988 | FALSE, /* partial_inplace */ | |
| 1989 | 0, /* src_mask */ | |
| 1990 | 0xffff, /* dst_mask */ | |
| 1991 | TRUE), /* pcrel_offset */ | |
| 1992 | ||
| f9c6b907 AM |
1993 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 1994 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 1995 | 16, /* rightshift */ | |
| 1996 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1997 | 16, /* bitsize */ | |
| 1998 | FALSE, /* pc_relative */ | |
| 1999 | 0, /* bitpos */ | |
| 2000 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2001 | bfd_elf_generic_reloc, /* special_function */ | |
| 2002 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2003 | FALSE, /* partial_inplace */ | |
| 2004 | 0, /* src_mask */ | |
| 2005 | 0xffff, /* dst_mask */ | |
| 2006 | FALSE), /* pcrel_offset */ | |
| 2007 | ||
| 2008 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2009 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2010 | 16, /* rightshift */ | |
| 2011 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2012 | 16, /* bitsize */ | |
| 2013 | FALSE, /* pc_relative */ | |
| 2014 | 0, /* bitpos */ | |
| 2015 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2016 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2017 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2018 | FALSE, /* partial_inplace */ | |
| 2019 | 0, /* src_mask */ | |
| 2020 | 0xffff, /* dst_mask */ | |
| 2021 | FALSE), /* pcrel_offset */ | |
| 2022 | ||
| 2023 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2024 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2025 | 16, /* rightshift */ | |
| 2026 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2027 | 16, /* bitsize */ | |
| 2028 | FALSE, /* pc_relative */ | |
| 2029 | 0, /* bitpos */ | |
| 2030 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2031 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2032 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2033 | FALSE, /* partial_inplace */ | |
| 2034 | 0, /* src_mask */ | |
| 2035 | 0xffff, /* dst_mask */ | |
| 2036 | FALSE), /* pcrel_offset */ | |
| 2037 | ||
| 2038 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2039 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2040 | 16, /* rightshift */ | |
| 2041 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2042 | 16, /* bitsize */ | |
| 2043 | FALSE, /* pc_relative */ | |
| 2044 | 0, /* bitpos */ | |
| 2045 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2046 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2047 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2048 | FALSE, /* partial_inplace */ | |
| 2049 | 0, /* src_mask */ | |
| 2050 | 0xffff, /* dst_mask */ | |
| 2051 | FALSE), /* pcrel_offset */ | |
| 2052 | ||
| 2053 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2054 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2055 | 16, /* rightshift */ | |
| 2056 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2057 | 16, /* bitsize */ | |
| 2058 | FALSE, /* pc_relative */ | |
| 2059 | 0, /* bitpos */ | |
| 2060 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2061 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2062 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2063 | FALSE, /* partial_inplace */ | |
| 2064 | 0, /* src_mask */ | |
| 2065 | 0xffff, /* dst_mask */ | |
| 2066 | FALSE), /* pcrel_offset */ | |
| 2067 | ||
| 2068 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2069 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2070 | 16, /* rightshift */ | |
| 2071 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2072 | 16, /* bitsize */ | |
| 2073 | FALSE, /* pc_relative */ | |
| 2074 | 0, /* bitpos */ | |
| 2075 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2076 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2077 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2078 | FALSE, /* partial_inplace */ | |
| 2079 | 0, /* src_mask */ | |
| 2080 | 0xffff, /* dst_mask */ | |
| 2081 | FALSE), /* pcrel_offset */ | |
| 2082 | ||
| 5bd4f169 AM |
2083 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2084 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2085 | 0, /* rightshift */ | |
| 2086 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2087 | 0, /* bitsize */ | |
| b34976b6 | 2088 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2089 | 0, /* bitpos */ |
| 2090 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2091 | NULL, /* special_function */ | |
| 2092 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2093 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2094 | 0, /* src_mask */ |
| 2095 | 0, /* dst_mask */ | |
| b34976b6 | 2096 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2097 | |
| 2098 | /* GNU extension to record C++ vtable member usage. */ | |
| 2099 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2100 | 0, /* rightshift */ | |
| 2101 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2102 | 0, /* bitsize */ | |
| b34976b6 | 2103 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2104 | 0, /* bitpos */ |
| 2105 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2106 | NULL, /* special_function */ | |
| 2107 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2108 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2109 | 0, /* src_mask */ |
| 2110 | 0, /* dst_mask */ | |
| b34976b6 | 2111 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2112 | }; |
| 2113 | ||
| 2114 | \f | |
| 2115 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2116 | be done. */ | |
| 2117 | ||
| 2118 | static void | |
| 4ce794b7 | 2119 | ppc_howto_init (void) |
| 5bd4f169 AM |
2120 | { |
| 2121 | unsigned int i, type; | |
| 2122 | ||
| 2123 | for (i = 0; | |
| 2124 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
| 2125 | i++) | |
| 2126 | { | |
| 2127 | type = ppc64_elf_howto_raw[i].type; | |
| 2128 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
| 2129 | / sizeof (ppc64_elf_howto_table[0]))); | |
| 2130 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
| 2131 | } | |
| 2132 | } | |
| 2133 | ||
| 2134 | static reloc_howto_type * | |
| 4ce794b7 AM |
2135 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2136 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2137 | { |
| 411e1bfb | 2138 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2139 | |
| 2140 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2141 | /* Initialize howto table if needed. */ | |
| 2142 | ppc_howto_init (); | |
| 2143 | ||
| 4ce794b7 | 2144 | switch (code) |
| 5bd4f169 AM |
2145 | { |
| 2146 | default: | |
| 4ce794b7 | 2147 | return NULL; |
| 5bd4f169 | 2148 | |
| 411e1bfb AM |
2149 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2150 | break; | |
| 2151 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2152 | break; | |
| 2153 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2154 | break; | |
| 2155 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2156 | break; | |
| 2157 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2158 | break; | |
| 2159 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2160 | break; | |
| f9c6b907 AM |
2161 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2162 | break; | |
| 411e1bfb | 2163 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2164 | break; |
| f9c6b907 AM |
2165 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2166 | break; | |
| 411e1bfb | 2167 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2168 | break; |
| 411e1bfb | 2169 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2170 | break; |
| 411e1bfb | 2171 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2172 | break; |
| 411e1bfb | 2173 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2174 | break; |
| 411e1bfb | 2175 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2176 | break; |
| 411e1bfb | 2177 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2178 | break; |
| 411e1bfb | 2179 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2180 | break; |
| 411e1bfb | 2181 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2182 | break; |
| 411e1bfb | 2183 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2184 | break; |
| 411e1bfb | 2185 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2186 | break; |
| 411e1bfb | 2187 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2188 | break; |
| 411e1bfb | 2189 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2190 | break; |
| 411e1bfb | 2191 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2192 | break; |
| 411e1bfb | 2193 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2194 | break; |
| 411e1bfb | 2195 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2196 | break; |
| 411e1bfb | 2197 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2198 | break; |
| 411e1bfb | 2199 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2200 | break; |
| 411e1bfb | 2201 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2202 | break; |
| 411e1bfb | 2203 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2204 | break; |
| 411e1bfb | 2205 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2206 | break; |
| 411e1bfb | 2207 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2208 | break; |
| 411e1bfb | 2209 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2210 | break; |
| 411e1bfb | 2211 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2212 | break; |
| 411e1bfb | 2213 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2214 | break; |
| 411e1bfb | 2215 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2216 | break; |
| 411e1bfb | 2217 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2218 | break; |
| 411e1bfb | 2219 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2220 | break; |
| 411e1bfb | 2221 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2222 | break; |
| 411e1bfb | 2223 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2224 | break; |
| 411e1bfb | 2225 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2226 | break; |
| 411e1bfb | 2227 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2228 | break; |
| 411e1bfb | 2229 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2230 | break; |
| 411e1bfb | 2231 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2232 | break; |
| 411e1bfb | 2233 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2234 | break; |
| 411e1bfb | 2235 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2236 | break; |
| 411e1bfb | 2237 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2238 | break; |
| 411e1bfb | 2239 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2240 | break; |
| 411e1bfb | 2241 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2242 | break; |
| 411e1bfb | 2243 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2244 | break; |
| 411e1bfb | 2245 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2246 | break; |
| 411e1bfb | 2247 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2248 | break; |
| 411e1bfb | 2249 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2250 | break; |
| 411e1bfb | 2251 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2252 | break; |
| 411e1bfb | 2253 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2254 | break; |
| 411e1bfb | 2255 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2256 | break; |
| 411e1bfb | 2257 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2258 | break; |
| 411e1bfb | 2259 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2260 | break; |
| 411e1bfb | 2261 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2262 | break; |
| 411e1bfb | 2263 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2264 | break; |
| 411e1bfb | 2265 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2272 | break; |
| 727fc41e AM |
2273 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2274 | break; | |
| 2275 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2276 | break; | |
| 411e1bfb | 2277 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2284 | break; |
| f9c6b907 AM |
2285 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2286 | break; | |
| 411e1bfb | 2287 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2288 | break; |
| f9c6b907 AM |
2289 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2290 | break; | |
| 411e1bfb | 2291 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb AM |
2293 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2294 | break; | |
| 2295 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2296 | break; | |
| 2297 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2298 | break; | |
| f9c6b907 AM |
2299 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2300 | break; | |
| 411e1bfb AM |
2301 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2302 | break; | |
| f9c6b907 AM |
2303 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2304 | break; | |
| 411e1bfb AM |
2305 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2306 | break; | |
| 2307 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2308 | break; | |
| 2309 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2310 | break; | |
| 2311 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2312 | break; | |
| 2313 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2314 | break; | |
| 2315 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2316 | break; | |
| 2317 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2318 | break; | |
| 2319 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2320 | break; | |
| 2321 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2322 | break; | |
| 2323 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2324 | break; | |
| 2325 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2326 | break; | |
| 2327 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2328 | break; | |
| 2329 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2330 | break; | |
| 2331 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2332 | break; | |
| 2333 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2334 | break; | |
| 2335 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2336 | break; | |
| 2337 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2338 | break; | |
| 2339 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2340 | break; | |
| 2341 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2342 | break; | |
| 2343 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2344 | break; | |
| 2345 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2346 | break; | |
| 2347 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2348 | break; | |
| 2349 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2350 | break; | |
| 2351 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2352 | break; | |
| 2353 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2354 | break; | |
| 2355 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2356 | break; | |
| 2357 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2358 | break; | |
| 2359 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2360 | break; | |
| 2361 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2362 | break; | |
| 25f23106 AM |
2363 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2364 | break; | |
| 2365 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2366 | break; | |
| 2367 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2368 | break; | |
| 2369 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2370 | break; | |
| 411e1bfb AM |
2371 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2372 | break; | |
| 2373 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2374 | break; |
| 2375 | } | |
| 2376 | ||
| 4ce794b7 | 2377 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2378 | }; |
| 2379 | ||
| 157090f7 AM |
2380 | static reloc_howto_type * |
| 2381 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2382 | const char *r_name) | |
| 2383 | { | |
| 2384 | unsigned int i; | |
| 2385 | ||
| 2386 | for (i = 0; | |
| 2387 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
| 2388 | i++) | |
| 2389 | if (ppc64_elf_howto_raw[i].name != NULL | |
| 2390 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2391 | return &ppc64_elf_howto_raw[i]; | |
| 2392 | ||
| 2393 | return NULL; | |
| 2394 | } | |
| 2395 | ||
| 5bd4f169 AM |
2396 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2397 | ||
| 2398 | static void | |
| 4ce794b7 AM |
2399 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2400 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2401 | { |
| 65f38f15 AM |
2402 | unsigned int type; |
| 2403 | ||
| ef60b7ff | 2404 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2405 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2406 | ppc_howto_init (); |
| 2407 | ||
| 65f38f15 | 2408 | type = ELF64_R_TYPE (dst->r_info); |
| d0fb9a8d JJ |
2409 | if (type >= (sizeof (ppc64_elf_howto_table) |
| 2410 | / sizeof (ppc64_elf_howto_table[0]))) | |
| 2411 | { | |
| 2412 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
| 3ec2b351 NC |
2413 | abfd, (int) type); |
| 2414 | type = R_PPC64_NONE; | |
| d0fb9a8d | 2415 | } |
| 65f38f15 | 2416 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2417 | } |
| 2418 | ||
| 04c9666a | 2419 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2420 | |
| 2421 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2422 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2423 | void *data, asection *input_section, | |
| 2424 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2425 | { |
| 805fc799 AM |
2426 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2427 | call the generic function. Any adjustment will be done at final | |
| 2428 | link time. */ | |
| 2429 | if (output_bfd != NULL) | |
| cedb70c5 | 2430 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2431 | input_section, output_bfd, error_message); |
| 2432 | ||
| 2433 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2434 | We won't actually be using the low 16 bits, so trashing them | |
| 2435 | doesn't matter. */ | |
| 2436 | reloc_entry->addend += 0x8000; | |
| 2437 | return bfd_reloc_continue; | |
| 2438 | } | |
| 5bd4f169 | 2439 | |
| 2441e016 AM |
2440 | static bfd_reloc_status_type |
| 2441 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2442 | void *data, asection *input_section, | |
| 2443 | bfd *output_bfd, char **error_message) | |
| 2444 | { | |
| 2445 | if (output_bfd != NULL) | |
| 2446 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2447 | input_section, output_bfd, error_message); | |
| 2448 | ||
| 699733f6 AM |
2449 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2450 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2451 | { |
| 2452 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2453 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2454 | NULL, NULL, FALSE); |
| 2441e016 AM |
2455 | if (dest != (bfd_vma) -1) |
| 2456 | reloc_entry->addend = dest - (symbol->value | |
| 2457 | + symbol->section->output_section->vma | |
| 2458 | + symbol->section->output_offset); | |
| 2459 | } | |
| 2460 | return bfd_reloc_continue; | |
| 2461 | } | |
| 2462 | ||
| 805fc799 | 2463 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2464 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2465 | void *data, asection *input_section, | |
| 2466 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2467 | { |
| 2468 | long insn; | |
| 04c9666a | 2469 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2470 | bfd_size_type octets; |
| 794e51c0 AM |
2471 | /* Assume 'at' branch hints. */ |
| 2472 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2473 | |
| 2474 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2475 | call the generic function. Any adjustment will be done at final | |
| 2476 | link time. */ | |
| 5bd4f169 | 2477 | if (output_bfd != NULL) |
| cedb70c5 | 2478 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2479 | input_section, output_bfd, error_message); |
| 2480 | ||
| 2481 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2482 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2483 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2484 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2485 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2486 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2487 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2488 | |
| 794e51c0 | 2489 | if (is_isa_v2) |
| 5bd4f169 | 2490 | { |
| 805fc799 AM |
2491 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2492 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2493 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2494 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2495 | insn |= 0x02 << 21; | |
| 2496 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2497 | insn |= 0x08 << 21; | |
| 2498 | else | |
| 2441e016 | 2499 | goto out; |
| 5bd4f169 | 2500 | } |
| 805fc799 AM |
2501 | else |
| 2502 | { | |
| 2503 | bfd_vma target = 0; | |
| 2504 | bfd_vma from; | |
| 5bd4f169 | 2505 | |
| 805fc799 AM |
2506 | if (!bfd_is_com_section (symbol->section)) |
| 2507 | target = symbol->value; | |
| 2508 | target += symbol->section->output_section->vma; | |
| 2509 | target += symbol->section->output_offset; | |
| 2510 | target += reloc_entry->addend; | |
| 5bd4f169 | 2511 | |
| 805fc799 AM |
2512 | from = (reloc_entry->address |
| 2513 | + input_section->output_offset | |
| 2514 | + input_section->output_section->vma); | |
| 5bd4f169 | 2515 | |
| 805fc799 AM |
2516 | /* Invert 'y' bit if not the default. */ |
| 2517 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2518 | insn ^= 0x01 << 21; | |
| 2519 | } | |
| 4ce794b7 | 2520 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2521 | out: |
| 2522 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2523 | input_section, output_bfd, error_message); | |
| 805fc799 | 2524 | } |
| 5bd4f169 | 2525 | |
| 805fc799 | 2526 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2527 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2528 | void *data, asection *input_section, | |
| 2529 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2530 | { |
| 2531 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2532 | call the generic function. Any adjustment will be done at final | |
| 2533 | link time. */ | |
| 2534 | if (output_bfd != NULL) | |
| cedb70c5 | 2535 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2536 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2537 | |
| 805fc799 AM |
2538 | /* Subtract the symbol section base address. */ |
| 2539 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2540 | return bfd_reloc_continue; |
| 2541 | } | |
| 2542 | ||
| 805fc799 | 2543 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2544 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2545 | void *data, asection *input_section, | |
| 2546 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2547 | { |
| 2548 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2549 | call the generic function. Any adjustment will be done at final | |
| 2550 | link time. */ | |
| 2551 | if (output_bfd != NULL) | |
| cedb70c5 | 2552 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2553 | input_section, output_bfd, error_message); |
| 2554 | ||
| 2555 | /* Subtract the symbol section base address. */ | |
| 2556 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2557 | ||
| 2558 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2559 | reloc_entry->addend += 0x8000; | |
| 2560 | return bfd_reloc_continue; | |
| 2561 | } | |
| 2562 | ||
| 2563 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2564 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2565 | void *data, asection *input_section, | |
| 2566 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2567 | { |
| 2568 | bfd_vma TOCstart; | |
| 2569 | ||
| 2570 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2571 | call the generic function. Any adjustment will be done at final | |
| 2572 | link time. */ | |
| 2573 | if (output_bfd != NULL) | |
| cedb70c5 | 2574 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2575 | input_section, output_bfd, error_message); |
| 2576 | ||
| 2577 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2578 | if (TOCstart == 0) | |
| 1c865ab2 | 2579 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2580 | |
| 2581 | /* Subtract the TOC base address. */ | |
| 2582 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2583 | return bfd_reloc_continue; | |
| 2584 | } | |
| 2585 | ||
| 2586 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2587 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2588 | void *data, asection *input_section, | |
| 2589 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2590 | { |
| 2591 | bfd_vma TOCstart; | |
| 2592 | ||
| 2593 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2594 | call the generic function. Any adjustment will be done at final | |
| 2595 | link time. */ | |
| 2596 | if (output_bfd != NULL) | |
| cedb70c5 | 2597 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2598 | input_section, output_bfd, error_message); |
| 2599 | ||
| 2600 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2601 | if (TOCstart == 0) | |
| 1c865ab2 | 2602 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2603 | |
| 2604 | /* Subtract the TOC base address. */ | |
| 2605 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2606 | ||
| 2607 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2608 | reloc_entry->addend += 0x8000; | |
| 2609 | return bfd_reloc_continue; | |
| 2610 | } | |
| 2611 | ||
| 2612 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2613 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2614 | void *data, asection *input_section, | |
| 2615 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2616 | { |
| 2617 | bfd_vma TOCstart; | |
| 2618 | bfd_size_type octets; | |
| 2619 | ||
| 2620 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2621 | call the generic function. Any adjustment will be done at final | |
| 2622 | link time. */ | |
| 2623 | if (output_bfd != NULL) | |
| cedb70c5 | 2624 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2625 | input_section, output_bfd, error_message); |
| 2626 | ||
| 2627 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2628 | if (TOCstart == 0) | |
| 1c865ab2 | 2629 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2630 | |
| 2631 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2632 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2633 | return bfd_reloc_ok; | |
| 2634 | } | |
| 2635 | ||
| 2636 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2637 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2638 | void *data, asection *input_section, | |
| 2639 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2640 | { |
| 2641 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2642 | call the generic function. Any adjustment will be done at final | |
| 2643 | link time. */ | |
| 2644 | if (output_bfd != NULL) | |
| cedb70c5 | 2645 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2646 | input_section, output_bfd, error_message); |
| 2647 | ||
| 2648 | if (error_message != NULL) | |
| 2649 | { | |
| 2650 | static char buf[60]; | |
| 2651 | sprintf (buf, "generic linker can't handle %s", | |
| 2652 | reloc_entry->howto->name); | |
| 2653 | *error_message = buf; | |
| 2654 | } | |
| 2655 | return bfd_reloc_dangerous; | |
| 2656 | } | |
| 2657 | ||
| 927be08e AM |
2658 | /* Track GOT entries needed for a given symbol. We might need more |
| 2659 | than one got entry per symbol. */ | |
| 2660 | struct got_entry | |
| 2661 | { | |
| 2662 | struct got_entry *next; | |
| 2663 | ||
| 2664 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2665 | bfd_vma addend; | |
| 2666 | ||
| 2667 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2668 | symbol referenced from different input files. This is to support | |
| 2669 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2670 | from one input file to another. After partitioning into TOC groups | |
| 2671 | we merge entries within the group. | |
| 2672 | ||
| 2673 | Point to the BFD owning this GOT entry. */ | |
| 2674 | bfd *owner; | |
| 2675 | ||
| 2676 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2677 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2678 | unsigned char tls_type; |
| 927be08e AM |
2679 | |
| 2680 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2681 | unsigned char is_indirect; |
| 927be08e AM |
2682 | |
| 2683 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2684 | union | |
| 2685 | { | |
| 2686 | bfd_signed_vma refcount; | |
| 2687 | bfd_vma offset; | |
| 2688 | struct got_entry *ent; | |
| 2689 | } got; | |
| 2690 | }; | |
| 2691 | ||
| 2692 | /* The same for PLT. */ | |
| 2693 | struct plt_entry | |
| 2694 | { | |
| 2695 | struct plt_entry *next; | |
| 2696 | ||
| 2697 | bfd_vma addend; | |
| 2698 | ||
| 2699 | union | |
| 2700 | { | |
| 2701 | bfd_signed_vma refcount; | |
| 2702 | bfd_vma offset; | |
| 2703 | } plt; | |
| 2704 | }; | |
| 2705 | ||
| e717da7e AM |
2706 | struct ppc64_elf_obj_tdata |
| 2707 | { | |
| 2708 | struct elf_obj_tdata elf; | |
| 2709 | ||
| 2710 | /* Shortcuts to dynamic linker sections. */ | |
| 2711 | asection *got; | |
| 2712 | asection *relgot; | |
| 2713 | ||
| b3fac117 AM |
2714 | /* Used during garbage collection. We attach global symbols defined |
| 2715 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2716 | asection *deleted_section; | |
| 81688140 | 2717 | |
| 927be08e | 2718 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2719 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2720 | struct got_entry tlsld_got; |
| 8860955f | 2721 | |
| 729eabd5 AM |
2722 | union { |
| 2723 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2724 | Elf_Internal_Rela *relocs; | |
| 2725 | ||
| 2726 | /* Section contents. */ | |
| 2727 | bfd_byte *contents; | |
| 2728 | } opd; | |
| d77c8a4b AM |
2729 | |
| 2730 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2731 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2732 | unsigned int has_small_toc_reloc : 1; |
| 2733 | ||
| 560c8763 AM |
2734 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2735 | instruction not one we handle. */ | |
| 2736 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2737 | }; |
| 2738 | ||
| 2739 | #define ppc64_elf_tdata(bfd) \ | |
| 2740 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2741 | ||
| 2742 | #define ppc64_tlsld_got(bfd) \ | |
| 2743 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2744 | ||
| 0c8d6e5c AM |
2745 | #define is_ppc64_elf(bfd) \ |
| 2746 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2747 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2748 | |
| e717da7e AM |
2749 | /* Override the generic function because we store some extras. */ |
| 2750 | ||
| 2751 | static bfd_boolean | |
| 2752 | ppc64_elf_mkobject (bfd *abfd) | |
| 2753 | { | |
| 0ffa91dd | 2754 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2755 | PPC64_ELF_DATA); |
| e717da7e AM |
2756 | } |
| 2757 | ||
| feee612b AM |
2758 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 2759 | default is 32 bit. */ | |
| 2760 | ||
| b34976b6 | 2761 | static bfd_boolean |
| 4ce794b7 | 2762 | ppc64_elf_object_p (bfd *abfd) |
| feee612b AM |
2763 | { |
| 2764 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
| 2765 | { | |
| 2766 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2767 | ||
| 2768 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2769 | { | |
| 2770 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2771 | abfd->arch_info = abfd->arch_info->next; | |
| 2772 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2773 | } | |
| 2774 | } | |
| b34976b6 | 2775 | return TRUE; |
| feee612b AM |
2776 | } |
| 2777 | ||
| d37c89e5 AM |
2778 | /* Support for core dump NOTE sections. */ |
| 2779 | ||
| 2780 | static bfd_boolean | |
| 2781 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2782 | { | |
| eea6121a | 2783 | size_t offset, size; |
| d37c89e5 AM |
2784 | |
| 2785 | if (note->descsz != 504) | |
| 2786 | return FALSE; | |
| 2787 | ||
| 2788 | /* pr_cursig */ | |
| 228e534f | 2789 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2790 | |
| 2791 | /* pr_pid */ | |
| 228e534f | 2792 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2793 | |
| 2794 | /* pr_reg */ | |
| 2795 | offset = 112; | |
| eea6121a | 2796 | size = 384; |
| d37c89e5 AM |
2797 | |
| 2798 | /* Make a ".reg/999" section. */ | |
| 2799 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2800 | size, note->descpos + offset); |
| d37c89e5 AM |
2801 | } |
| 2802 | ||
| 2803 | static bfd_boolean | |
| 2804 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2805 | { | |
| 2806 | if (note->descsz != 136) | |
| 2807 | return FALSE; | |
| 2808 | ||
| 228e534f | 2809 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2810 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2811 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2812 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2813 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2814 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2815 | ||
| 2816 | return TRUE; | |
| 2817 | } | |
| 2818 | ||
| 183e98be AM |
2819 | static char * |
| 2820 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2821 | ...) | |
| 2822 | { | |
| 2823 | switch (note_type) | |
| 2824 | { | |
| 2825 | default: | |
| 2826 | return NULL; | |
| 2827 | ||
| 2828 | case NT_PRPSINFO: | |
| 2829 | { | |
| 2830 | char data[136]; | |
| 2831 | va_list ap; | |
| 2832 | ||
| 2833 | va_start (ap, note_type); | |
| 75cd47ed | 2834 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2835 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2836 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2837 | va_end (ap); | |
| 2838 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2839 | "CORE", note_type, data, sizeof (data)); | |
| 2840 | } | |
| 2841 | ||
| 2842 | case NT_PRSTATUS: | |
| 2843 | { | |
| 2844 | char data[504]; | |
| 2845 | va_list ap; | |
| 2846 | long pid; | |
| 2847 | int cursig; | |
| 2848 | const void *greg; | |
| 2849 | ||
| 2850 | va_start (ap, note_type); | |
| 2851 | memset (data, 0, 112); | |
| 2852 | pid = va_arg (ap, long); | |
| 2853 | bfd_put_32 (abfd, pid, data + 32); | |
| 2854 | cursig = va_arg (ap, int); | |
| 2855 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2856 | greg = va_arg (ap, const void *); | |
| 2857 | memcpy (data + 112, greg, 384); | |
| 2858 | memset (data + 496, 0, 8); | |
| 2859 | va_end (ap); | |
| 2860 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2861 | "CORE", note_type, data, sizeof (data)); | |
| 2862 | } | |
| 2863 | } | |
| 2864 | } | |
| 2865 | ||
| 5d35169e AM |
2866 | /* Add extra PPC sections. */ |
| 2867 | ||
| b35d266b | 2868 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 2869 | { |
| 0112cd26 NC |
2870 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 2871 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2872 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2873 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2874 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2875 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2876 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
2877 | }; |
| 2878 | ||
| 7c8fe5c4 AM |
2879 | enum _ppc64_sec_type { |
| 2880 | sec_normal = 0, | |
| 2881 | sec_opd = 1, | |
| 2882 | sec_toc = 2 | |
| 2883 | }; | |
| 2884 | ||
| f0abc2a1 AM |
2885 | struct _ppc64_elf_section_data |
| 2886 | { | |
| 2887 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 2888 | |
| f0abc2a1 AM |
2889 | union |
| 2890 | { | |
| 74f0fb50 AM |
2891 | /* An array with one entry for each opd function descriptor. */ |
| 2892 | struct _opd_sec_data | |
| 2893 | { | |
| 2894 | /* Points to the function code section for local opd entries. */ | |
| 2895 | asection **func_sec; | |
| 2896 | ||
| 2897 | /* After editing .opd, adjust references to opd local syms. */ | |
| 2898 | long *adjust; | |
| 2899 | } opd; | |
| 7c8fe5c4 | 2900 | |
| 3a71aa26 AM |
2901 | /* An array for toc sections, indexed by offset/8. */ |
| 2902 | struct _toc_sec_data | |
| 2903 | { | |
| 2904 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 2905 | unsigned *symndx; | |
| 2906 | ||
| 2907 | /* And the relocation addend. */ | |
| 2908 | bfd_vma *add; | |
| 2909 | } toc; | |
| 7c8fe5c4 AM |
2910 | } u; |
| 2911 | ||
| 2912 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 2913 | |
| 7c8fe5c4 AM |
2914 | /* Flag set when small branches are detected. Used to |
| 2915 | select suitable defaults for the stub group size. */ | |
| 2916 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
2917 | }; |
| 2918 | ||
| 2919 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 2920 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
2921 | |
| 2922 | static bfd_boolean | |
| 4ce794b7 | 2923 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 2924 | { |
| f592407e AM |
2925 | if (!sec->used_by_bfd) |
| 2926 | { | |
| 2927 | struct _ppc64_elf_section_data *sdata; | |
| 2928 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 2929 | |
| f592407e AM |
2930 | sdata = bfd_zalloc (abfd, amt); |
| 2931 | if (sdata == NULL) | |
| 2932 | return FALSE; | |
| 2933 | sec->used_by_bfd = sdata; | |
| 2934 | } | |
| f0abc2a1 AM |
2935 | |
| 2936 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 2937 | } | |
| 4025353c | 2938 | |
| 74f0fb50 | 2939 | static struct _opd_sec_data * |
| 4025353c AM |
2940 | get_opd_info (asection * sec) |
| 2941 | { | |
| 2942 | if (sec != NULL | |
| 2943 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 2944 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 2945 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
2946 | return NULL; |
| 2947 | } | |
| ee67d69a AM |
2948 | |
| 2949 | static inline int | |
| 2950 | abiversion (bfd *abfd) | |
| 2951 | { | |
| 2952 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 2953 | } | |
| 2954 | ||
| 2955 | static inline void | |
| 2956 | set_abiversion (bfd *abfd, int ver) | |
| 2957 | { | |
| 2958 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 2959 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 2960 | } | |
| 90e3cdf2 JJ |
2961 | \f |
| 2962 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 JJ |
2963 | static bfd_boolean synthetic_relocatable; |
| 2964 | ||
| 699733f6 | 2965 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
2966 | |
| 2967 | static int | |
| 2968 | compare_symbols (const void *ap, const void *bp) | |
| 2969 | { | |
| 2970 | const asymbol *a = * (const asymbol **) ap; | |
| 2971 | const asymbol *b = * (const asymbol **) bp; | |
| 2972 | ||
| 699733f6 AM |
2973 | /* Section symbols first. */ |
| 2974 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 2975 | return -1; |
| 699733f6 | 2976 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
2977 | return 1; |
| 2978 | ||
| 699733f6 | 2979 | /* then .opd symbols. */ |
| ffcfec52 AM |
2980 | if (strcmp (a->section->name, ".opd") == 0 |
| 2981 | && strcmp (b->section->name, ".opd") != 0) | |
| 90e3cdf2 | 2982 | return -1; |
| ffcfec52 AM |
2983 | if (strcmp (a->section->name, ".opd") != 0 |
| 2984 | && strcmp (b->section->name, ".opd") == 0) | |
| 90e3cdf2 JJ |
2985 | return 1; |
| 2986 | ||
| 699733f6 | 2987 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
2988 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 2989 | == (SEC_CODE | SEC_ALLOC) | |
| 2990 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 2991 | != (SEC_CODE | SEC_ALLOC)) | |
| 2992 | return -1; | |
| 2993 | ||
| 2994 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 2995 | != (SEC_CODE | SEC_ALLOC) | |
| 2996 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 2997 | == (SEC_CODE | SEC_ALLOC)) | |
| 2998 | return 1; | |
| 2999 | ||
| 3000 | if (synthetic_relocatable) | |
| 3001 | { | |
| 3002 | if (a->section->id < b->section->id) | |
| 3003 | return -1; | |
| 3004 | ||
| 3005 | if (a->section->id > b->section->id) | |
| 3006 | return 1; | |
| 3007 | } | |
| 3008 | ||
| 3009 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3010 | return -1; | |
| 3011 | ||
| 3012 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3013 | return 1; | |
| 3014 | ||
| 4d35a0aa AM |
3015 | /* For syms with the same value, prefer strong dynamic global function |
| 3016 | syms over other syms. */ | |
| 3017 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3018 | return -1; | |
| 3019 | ||
| 3020 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3021 | return 1; | |
| 3022 | ||
| 3023 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3024 | return -1; | |
| 3025 | ||
| 3026 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3027 | return 1; | |
| 3028 | ||
| 3029 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3030 | return -1; | |
| 3031 | ||
| 3032 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3033 | return 1; | |
| 3034 | ||
| 3035 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3036 | return -1; | |
| 3037 | ||
| 3038 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3039 | return 1; | |
| 3040 | ||
| 90e3cdf2 JJ |
3041 | return 0; |
| 3042 | } | |
| 3043 | ||
| 699733f6 | 3044 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3045 | |
| 699733f6 AM |
3046 | static asymbol * |
| 3047 | sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value) | |
| 90e3cdf2 | 3048 | { |
| 699733f6 | 3049 | long mid; |
| 90e3cdf2 | 3050 | |
| 699733f6 AM |
3051 | if (id == -1) |
| 3052 | { | |
| 3053 | while (lo < hi) | |
| 3054 | { | |
| 3055 | mid = (lo + hi) >> 1; | |
| 3056 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3057 | lo = mid + 1; | |
| 3058 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3059 | hi = mid; | |
| 3060 | else | |
| 3061 | return syms[mid]; | |
| 3062 | } | |
| 3063 | } | |
| 3064 | else | |
| 3065 | { | |
| 3066 | while (lo < hi) | |
| 3067 | { | |
| 3068 | mid = (lo + hi) >> 1; | |
| 3069 | if (syms[mid]->section->id < id) | |
| 3070 | lo = mid + 1; | |
| 3071 | else if (syms[mid]->section->id > id) | |
| 3072 | hi = mid; | |
| 3073 | else if (syms[mid]->value < value) | |
| 3074 | lo = mid + 1; | |
| 3075 | else if (syms[mid]->value > value) | |
| 3076 | hi = mid; | |
| 3077 | else | |
| 3078 | return syms[mid]; | |
| 3079 | } | |
| 3080 | } | |
| 3081 | return NULL; | |
| 90e3cdf2 JJ |
3082 | } |
| 3083 | ||
| 468392fb AM |
3084 | static bfd_boolean |
| 3085 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3086 | { | |
| 3087 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3088 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3089 | && section->vma <= vma | |
| 3090 | && vma < section->vma + section->size); | |
| 3091 | } | |
| 3092 | ||
| 699733f6 | 3093 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| 468392fb | 3094 | entry syms. Also generate @plt symbols for the glink branch table. */ |
| 90e3cdf2 JJ |
3095 | |
| 3096 | static long | |
| a7535cf3 AM |
3097 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3098 | long static_count, asymbol **static_syms, | |
| 3099 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3100 | asymbol **ret) |
| 90e3cdf2 JJ |
3101 | { |
| 3102 | asymbol *s; | |
| 699733f6 AM |
3103 | long i; |
| 3104 | long count; | |
| 90e3cdf2 | 3105 | char *names; |
| a7535cf3 | 3106 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3107 | asection *opd = NULL; |
| 90e3cdf2 | 3108 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3109 | asymbol **syms; |
| ee67d69a | 3110 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3111 | |
| 3112 | *ret = NULL; | |
| 3113 | ||
| ee67d69a AM |
3114 | if (abi < 2) |
| 3115 | { | |
| 3116 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3117 | if (opd == NULL && abi == 1) | |
| 3118 | return 0; | |
| 3119 | } | |
| 90e3cdf2 | 3120 | |
| a7535cf3 | 3121 | symcount = static_count; |
| c9727e01 | 3122 | if (!relocatable) |
| a7535cf3 | 3123 | symcount += dyn_count; |
| 90e3cdf2 | 3124 | if (symcount == 0) |
| c9727e01 | 3125 | return 0; |
| 90e3cdf2 | 3126 | |
| a7535cf3 AM |
3127 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3128 | if (syms == NULL) | |
| 7356fed5 | 3129 | return -1; |
| a7535cf3 AM |
3130 | |
| 3131 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3132 | { | |
| 3133 | /* Use both symbol tables. */ | |
| 3134 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3135 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3136 | } | |
| 3137 | else if (!relocatable && static_count == 0) | |
| 3138 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3139 | else | |
| 3140 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3141 | ||
| 90e3cdf2 | 3142 | synthetic_relocatable = relocatable; |
| 595da8c5 | 3143 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3144 | |
| c9727e01 AM |
3145 | if (!relocatable && symcount > 1) |
| 3146 | { | |
| 3147 | long j; | |
| 3148 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3149 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3150 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3151 | for (i = 1, j = 1; i < symcount; ++i) |
| 3152 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3153 | != syms[i]->value + syms[i]->section->vma) | |
| 3154 | syms[j++] = syms[i]; | |
| 3155 | symcount = j; | |
| 3156 | } | |
| 3157 | ||
| 699733f6 | 3158 | i = 0; |
| ffcfec52 | 3159 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| 699733f6 AM |
3160 | ++i; |
| 3161 | codesecsym = i; | |
| 90e3cdf2 | 3162 | |
| 699733f6 AM |
3163 | for (; i < symcount; ++i) |
| 3164 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3165 | != (SEC_CODE | SEC_ALLOC)) | |
| 3166 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3167 | break; | |
| 3168 | codesecsymend = i; | |
| 90e3cdf2 | 3169 | |
| 699733f6 AM |
3170 | for (; i < symcount; ++i) |
| 3171 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3172 | break; | |
| 3173 | secsymend = i; | |
| 90e3cdf2 | 3174 | |
| 699733f6 | 3175 | for (; i < symcount; ++i) |
| ffcfec52 | 3176 | if (strcmp (syms[i]->section->name, ".opd") != 0) |
| 699733f6 AM |
3177 | break; |
| 3178 | opdsymend = i; | |
| 90e3cdf2 | 3179 | |
| 699733f6 AM |
3180 | for (; i < symcount; ++i) |
| 3181 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3182 | != (SEC_CODE | SEC_ALLOC)) | |
| 3183 | break; | |
| 3184 | symcount = i; | |
| 3185 | ||
| c9727e01 | 3186 | count = 0; |
| 90e3cdf2 | 3187 | |
| 699733f6 | 3188 | if (relocatable) |
| 90e3cdf2 | 3189 | { |
| 699733f6 AM |
3190 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3191 | arelent *r; | |
| 3192 | size_t size; | |
| 3193 | long relcount; | |
| 90e3cdf2 | 3194 | |
| 468392fb AM |
3195 | if (opdsymend == secsymend) |
| 3196 | goto done; | |
| 3197 | ||
| 699733f6 | 3198 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3199 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3200 | if (relcount == 0) |
| c9727e01 | 3201 | goto done; |
| 90e3cdf2 | 3202 | |
| 7356fed5 AM |
3203 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3204 | { | |
| 3205 | count = -1; | |
| 3206 | goto done; | |
| 3207 | } | |
| 3208 | ||
| 699733f6 | 3209 | size = 0; |
| 595da8c5 | 3210 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3211 | { |
| 3212 | asymbol *sym; | |
| 90e3cdf2 | 3213 | |
| 595da8c5 | 3214 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3215 | && r->address < syms[i]->value + opd->vma) |
| 3216 | ++r; | |
| 90e3cdf2 | 3217 | |
| 595da8c5 | 3218 | if (r == opd->relocation + relcount) |
| 699733f6 | 3219 | break; |
| 90e3cdf2 | 3220 | |
| 699733f6 AM |
3221 | if (r->address != syms[i]->value + opd->vma) |
| 3222 | continue; | |
| 90e3cdf2 | 3223 | |
| 699733f6 AM |
3224 | if (r->howto->type != R_PPC64_ADDR64) |
| 3225 | continue; | |
| 90e3cdf2 | 3226 | |
| 699733f6 AM |
3227 | sym = *r->sym_ptr_ptr; |
| 3228 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3229 | sym->section->id, sym->value + r->addend)) | |
| 3230 | { | |
| 3231 | ++count; | |
| 3232 | size += sizeof (asymbol); | |
| 3233 | size += strlen (syms[i]->name) + 2; | |
| 3234 | } | |
| 3235 | } | |
| 90e3cdf2 | 3236 | |
| 699733f6 AM |
3237 | s = *ret = bfd_malloc (size); |
| 3238 | if (s == NULL) | |
| 3239 | { | |
| 7356fed5 | 3240 | count = -1; |
| c9727e01 | 3241 | goto done; |
| 699733f6 | 3242 | } |
| 90e3cdf2 | 3243 | |
| 699733f6 | 3244 | names = (char *) (s + count); |
| 90e3cdf2 | 3245 | |
| 595da8c5 | 3246 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3247 | { |
| 699733f6 | 3248 | asymbol *sym; |
| 90e3cdf2 | 3249 | |
| 595da8c5 | 3250 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3251 | && r->address < syms[i]->value + opd->vma) |
| 3252 | ++r; | |
| 90e3cdf2 | 3253 | |
| 595da8c5 | 3254 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3255 | break; |
| 3256 | ||
| 3257 | if (r->address != syms[i]->value + opd->vma) | |
| 3258 | continue; | |
| 3259 | ||
| 3260 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3261 | continue; | |
| 90e3cdf2 | 3262 | |
| 699733f6 AM |
3263 | sym = *r->sym_ptr_ptr; |
| 3264 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3265 | sym->section->id, sym->value + r->addend)) | |
| 3266 | { | |
| 3267 | size_t len; | |
| 3268 | ||
| 3269 | *s = *syms[i]; | |
| 6ba2a415 | 3270 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3271 | s->section = sym->section; |
| 3272 | s->value = sym->value + r->addend; | |
| 3273 | s->name = names; | |
| 3274 | *names++ = '.'; | |
| 3275 | len = strlen (syms[i]->name); | |
| 3276 | memcpy (names, syms[i]->name, len + 1); | |
| 3277 | names += len + 1; | |
| 6f610d07 UW |
3278 | /* Have udata.p point back to the original symbol this |
| 3279 | synthetic symbol was derived from. */ | |
| 3280 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3281 | s++; |
| 3282 | } | |
| 3283 | } | |
| 3284 | } | |
| 3285 | else | |
| 90e3cdf2 | 3286 | { |
| 468392fb | 3287 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3288 | bfd_byte *contents = NULL; |
| 699733f6 | 3289 | size_t size; |
| 468392fb AM |
3290 | long plt_count = 0; |
| 3291 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3292 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3293 | arelent *p; | |
| 90e3cdf2 | 3294 | |
| ee67d69a | 3295 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3296 | { |
| ee67d69a | 3297 | free_contents_and_exit: |
| 699733f6 | 3298 | if (contents) |
| ee67d69a | 3299 | free (contents); |
| 7356fed5 | 3300 | count = -1; |
| c9727e01 | 3301 | goto done; |
| 699733f6 | 3302 | } |
| 90e3cdf2 | 3303 | |
| 699733f6 AM |
3304 | size = 0; |
| 3305 | for (i = secsymend; i < opdsymend; ++i) | |
| 3306 | { | |
| 3307 | bfd_vma ent; | |
| 90e3cdf2 | 3308 | |
| 5ef11c02 AM |
3309 | /* Ignore bogus symbols. */ |
| 3310 | if (syms[i]->value > opd->size - 8) | |
| 3311 | continue; | |
| 3312 | ||
| 699733f6 AM |
3313 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3314 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3315 | { | |
| 3316 | ++count; | |
| 3317 | size += sizeof (asymbol); | |
| 3318 | size += strlen (syms[i]->name) + 2; | |
| 3319 | } | |
| 3320 | } | |
| 90e3cdf2 | 3321 | |
| 468392fb | 3322 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3323 | if (dyn_count != 0 |
| 3324 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3325 | { |
| 3326 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3327 | size_t extdynsize; | |
| 3328 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3329 | ||
| 3330 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| 3331 | goto free_contents_and_exit; | |
| 3332 | ||
| 3333 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3334 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3335 | ||
| 3336 | extdyn = dynbuf; | |
| 3337 | extdynend = extdyn + dynamic->size; | |
| 3338 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3339 | { | |
| 3340 | Elf_Internal_Dyn dyn; | |
| 3341 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3342 | ||
| 3343 | if (dyn.d_tag == DT_NULL) | |
| 3344 | break; | |
| 3345 | ||
| 3346 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3347 | { | |
| 3348 | /* The first glink stub starts at offset 32; see comment in | |
| 3349 | ppc64_elf_finish_dynamic_sections. */ | |
| 3350 | glink_vma = dyn.d_un.d_val + 32; | |
| 3351 | /* The .glink section usually does not survive the final | |
| 3352 | link; search for the section (usually .text) where the | |
| 3353 | glink stubs now reside. */ | |
| 3354 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3355 | &glink_vma); | |
| 3356 | break; | |
| 3357 | } | |
| 3358 | } | |
| 3359 | ||
| 3360 | free (dynbuf); | |
| 3361 | } | |
| 3362 | ||
| 3363 | if (glink != NULL) | |
| 3364 | { | |
| 3365 | /* Determine __glink trampoline by reading the relative branch | |
| 3366 | from the first glink stub. */ | |
| 3367 | bfd_byte buf[4]; | |
| 3368 | if (bfd_get_section_contents (abfd, glink, buf, | |
| 3369 | glink_vma + 4 - glink->vma, 4)) | |
| 3370 | { | |
| 3371 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3372 | insn ^= B_DOT; | |
| 3373 | if ((insn & ~0x3fffffc) == 0) | |
| 3374 | resolv_vma = glink_vma + 4 + (insn ^ 0x2000000) - 0x2000000; | |
| 3375 | } | |
| 3376 | ||
| 3377 | if (resolv_vma) | |
| 3378 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3379 | |
| 066ee829 AM |
3380 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3381 | if (relplt != NULL) | |
| 3382 | { | |
| 3383 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3384 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| 3385 | goto free_contents_and_exit; | |
| 68ffbac6 | 3386 | |
| 066ee829 AM |
3387 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3388 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3389 | |
| 066ee829 AM |
3390 | p = relplt->relocation; |
| 3391 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3392 | { |
| 3393 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3394 | if (p->addend != 0) | |
| 3395 | size += sizeof ("+0x") - 1 + 16; | |
| 3396 | } | |
| 066ee829 | 3397 | } |
| 468392fb AM |
3398 | } |
| 3399 | ||
| 699733f6 AM |
3400 | s = *ret = bfd_malloc (size); |
| 3401 | if (s == NULL) | |
| 7356fed5 | 3402 | goto free_contents_and_exit; |
| 90e3cdf2 | 3403 | |
| 468392fb | 3404 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3405 | |
| 699733f6 | 3406 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3407 | { |
| 699733f6 | 3408 | bfd_vma ent; |
| 90e3cdf2 | 3409 | |
| 5ef11c02 AM |
3410 | if (syms[i]->value > opd->size - 8) |
| 3411 | continue; | |
| 3412 | ||
| 699733f6 AM |
3413 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3414 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3415 | { |
| c9727e01 | 3416 | long lo, hi; |
| 699733f6 | 3417 | size_t len; |
| c9727e01 | 3418 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3419 | |
| 699733f6 AM |
3420 | *s = *syms[i]; |
| 3421 | lo = codesecsym; | |
| 3422 | hi = codesecsymend; | |
| 3423 | while (lo < hi) | |
| 3424 | { | |
| c9727e01 | 3425 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3426 | if (syms[mid]->section->vma < ent) |
| 3427 | lo = mid + 1; | |
| 3428 | else if (syms[mid]->section->vma > ent) | |
| 3429 | hi = mid; | |
| 3430 | else | |
| c9727e01 AM |
3431 | { |
| 3432 | sec = syms[mid]->section; | |
| 3433 | break; | |
| 3434 | } | |
| 699733f6 AM |
3435 | } |
| 3436 | ||
| c9727e01 | 3437 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3438 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3439 | |
| 3440 | for (; sec != NULL; sec = sec->next) | |
| 3441 | { | |
| 3442 | if (sec->vma > ent) | |
| 3443 | break; | |
| 63524580 JK |
3444 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3445 | info file. */ | |
| 3446 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3447 | break; |
| 3448 | if ((sec->flags & SEC_CODE) != 0) | |
| 3449 | s->section = sec; | |
| 3450 | } | |
| 6ba2a415 | 3451 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3452 | s->value = ent - s->section->vma; |
| 3453 | s->name = names; | |
| 3454 | *names++ = '.'; | |
| 3455 | len = strlen (syms[i]->name); | |
| 3456 | memcpy (names, syms[i]->name, len + 1); | |
| 3457 | names += len + 1; | |
| 6f610d07 UW |
3458 | /* Have udata.p point back to the original symbol this |
| 3459 | synthetic symbol was derived from. */ | |
| 3460 | s->udata.p = syms[i]; | |
| 699733f6 | 3461 | s++; |
| 90e3cdf2 | 3462 | } |
| 90e3cdf2 | 3463 | } |
| 699733f6 | 3464 | free (contents); |
| 468392fb AM |
3465 | |
| 3466 | if (glink != NULL && relplt != NULL) | |
| 3467 | { | |
| 3468 | if (resolv_vma) | |
| 3469 | { | |
| 3470 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3471 | memset (s, 0, sizeof *s); |
| 468392fb | 3472 | s->the_bfd = abfd; |
| 6ba2a415 | 3473 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3474 | s->section = glink; |
| 3475 | s->value = resolv_vma - glink->vma; | |
| 3476 | s->name = names; | |
| 3477 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3478 | names += sizeof ("__glink_PLTresolve"); | |
| 3479 | s++; | |
| 3480 | count++; | |
| 3481 | } | |
| 3482 | ||
| 3483 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3484 | stub rather than on the glink branch table entry. The | |
| 3485 | objdump disassembler would then use a sensible symbol | |
| 3486 | name on plt calls. The difficulty in doing so is | |
| 3487 | a) finding the stubs, and, | |
| 3488 | b) matching stubs against plt entries, and, | |
| 3489 | c) there can be multiple stubs for a given plt entry. | |
| 3490 | ||
| 3491 | Solving (a) could be done by code scanning, but older | |
| 3492 | ppc64 binaries used different stubs to current code. | |
| 3493 | (b) is the tricky one since you need to known the toc | |
| 3494 | pointer for at least one function that uses a pic stub to | |
| 3495 | be able to calculate the plt address referenced. | |
| 3496 | (c) means gdb would need to set multiple breakpoints (or | |
| 3497 | find the glink branch itself) when setting breakpoints | |
| 3498 | for pending shared library loads. */ | |
| 3499 | p = relplt->relocation; | |
| 3500 | for (i = 0; i < plt_count; i++, p++) | |
| 3501 | { | |
| 3502 | size_t len; | |
| 3503 | ||
| 3504 | *s = **p->sym_ptr_ptr; | |
| 3505 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3506 | we are defining a symbol, ensure one of them is set. */ | |
| 3507 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3508 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3509 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3510 | s->section = glink; |
| 3511 | s->value = glink_vma - glink->vma; | |
| 3512 | s->name = names; | |
| 3513 | s->udata.p = NULL; | |
| 3514 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3515 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3516 | names += len; | |
| e054468f AM |
3517 | if (p->addend != 0) |
| 3518 | { | |
| 3519 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3520 | names += sizeof ("+0x") - 1; | |
| 3521 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3522 | names += strlen (names); | |
| 3523 | } | |
| 468392fb AM |
3524 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3525 | names += sizeof ("@plt"); | |
| 3526 | s++; | |
| 3527 | glink_vma += 8; | |
| 3528 | if (i >= 0x8000) | |
| 3529 | glink_vma += 4; | |
| 3530 | } | |
| 3531 | count += plt_count; | |
| 3532 | } | |
| 90e3cdf2 JJ |
3533 | } |
| 3534 | ||
| c9727e01 | 3535 | done: |
| a7535cf3 | 3536 | free (syms); |
| 90e3cdf2 JJ |
3537 | return count; |
| 3538 | } | |
| 5bd4f169 | 3539 | \f |
| 65f38f15 AM |
3540 | /* The following functions are specific to the ELF linker, while |
| 3541 | functions above are used generally. Those named ppc64_elf_* are | |
| 3542 | called by the main ELF linker code. They appear in this file more | |
| 3543 | or less in the order in which they are called. eg. | |
| 3544 | ppc64_elf_check_relocs is called early in the link process, | |
| 3545 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3546 | called. |
| 3547 | ||
| 3548 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3549 | functions have both a function code symbol and a function descriptor | |
| 3550 | symbol. A call to foo in a relocatable object file looks like: | |
| 3551 | ||
| 3552 | . .text | |
| 3553 | . x: | |
| 3554 | . bl .foo | |
| 3555 | . nop | |
| 3556 | ||
| 3557 | The function definition in another object file might be: | |
| 3558 | ||
| 3559 | . .section .opd | |
| 3560 | . foo: .quad .foo | |
| 3561 | . .quad .TOC.@tocbase | |
| 3562 | . .quad 0 | |
| 3563 | . | |
| 3564 | . .text | |
| 3565 | . .foo: blr | |
| 3566 | ||
| 3567 | When the linker resolves the call during a static link, the branch | |
| 3568 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3569 | If the function definition is in a shared library, things are a little | |
| 3570 | different: The call goes via a plt call stub, the opd information gets | |
| 3571 | copied to the plt, and the linker patches the nop. | |
| 3572 | ||
| 3573 | . x: | |
| 3574 | . bl .foo_stub | |
| 3575 | . ld 2,40(1) | |
| 3576 | . | |
| 3577 | . | |
| 3578 | . .foo_stub: | |
| 71a39c98 AM |
3579 | . std 2,40(1) # in practice, the call stub |
| 3580 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3581 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3582 | . ld 12,0(11) | |
| 3583 | . ld 2,8(11) | |
| 3584 | . mtctr 12 | |
| 3585 | . ld 11,16(11) | |
| e86ce104 AM |
3586 | . bctr |
| 3587 | . | |
| 3588 | . .section .plt | |
| 3589 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3590 | ||
| 3591 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3592 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3593 | copying. | |
| 3594 | ||
| 3595 | What are the difficulties here? Well, firstly, the relocations | |
| 3596 | examined by the linker in check_relocs are against the function code | |
| 3597 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3598 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3599 | to carefully copy dynamic link information from one symbol to the other. | |
| 3600 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3601 | symbol as is normal for most other backends. We need foo dynamic | |
| 3602 | instead, at least for an application final link. However, when | |
| 3603 | creating a shared library containing foo, we need to have both symbols | |
| 3604 | dynamic so that references to .foo are satisfied during the early | |
| 3605 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3606 | definition from some other object, eg. a static library. |
| 3607 | ||
| 3608 | Update: As of August 2004, we support a new convention. Function | |
| 3609 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3610 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3611 | |
| 1d483afe | 3612 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3613 | selects those that must be copied when linking a shared library, |
| 3614 | even when the symbol is local. */ | |
| 65f38f15 | 3615 | |
| 1d483afe AM |
3616 | static int |
| 3617 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3618 | enum elf_ppc64_reloc_type r_type) | |
| 3619 | { | |
| 3620 | switch (r_type) | |
| 3621 | { | |
| 3622 | default: | |
| 3623 | return 1; | |
| 3624 | ||
| 3625 | case R_PPC64_REL32: | |
| 3626 | case R_PPC64_REL64: | |
| 3627 | case R_PPC64_REL30: | |
| 3628 | return 0; | |
| 3629 | ||
| 3630 | case R_PPC64_TPREL16: | |
| 3631 | case R_PPC64_TPREL16_LO: | |
| 3632 | case R_PPC64_TPREL16_HI: | |
| 3633 | case R_PPC64_TPREL16_HA: | |
| 3634 | case R_PPC64_TPREL16_DS: | |
| 3635 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3636 | case R_PPC64_TPREL16_HIGH: |
| 3637 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3638 | case R_PPC64_TPREL16_HIGHER: |
| 3639 | case R_PPC64_TPREL16_HIGHERA: | |
| 3640 | case R_PPC64_TPREL16_HIGHEST: | |
| 3641 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3642 | case R_PPC64_TPREL64: | |
| 3643 | return !info->executable; | |
| 3644 | } | |
| 3645 | } | |
| 65f38f15 | 3646 | |
| f4656909 AM |
3647 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3648 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3649 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3650 | shared lib. With code that gcc generates, it's vital that this be |
| 3651 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3652 | the address of a function descriptor, which resides in the .opd | |
| 3653 | section. gcc uses the descriptor directly rather than going via the | |
| 3654 | GOT as some other ABI's do, which means that initialized function | |
| 3655 | pointers must reference the descriptor. Thus, a function pointer | |
| 3656 | initialized to the address of a function in a shared library will | |
| 3657 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3658 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3659 | presents a problem as a plt entry for that function is also |
| 3660 | initialized from the function descriptor symbol and the copy reloc | |
| 3661 | may not be initialized first. */ | |
| a23b6845 | 3662 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3663 | |
| 721956f4 | 3664 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3665 | string. */ |
| 3666 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3667 | |
| 3668 | /* Linker stubs. | |
| 3669 | ppc_stub_long_branch: | |
| 3670 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3671 | destination, but a 24 bit branch in a stub section will reach. | |
| 3672 | . b dest | |
| 3673 | ||
| 3674 | ppc_stub_plt_branch: | |
| 3675 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3676 | reach its destination. | |
| 71a39c98 AM |
3677 | . addis %r11,%r2,xxx@toc@ha |
| 3678 | . ld %r12,xxx@toc@l(%r11) | |
| 3679 | . mtctr %r12 | |
| 721956f4 AM |
3680 | . bctr |
| 3681 | ||
| 3682 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3683 | Used to call a function in a shared library. If it so happens that |
| 3684 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3685 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3686 | . std %r2,40(%r1) |
| 71a39c98 AM |
3687 | . addis %r11,%r2,xxx@toc@ha |
| 3688 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3689 | . mtctr %r12 | |
| 3690 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3691 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3692 | . bctr |
| ad8e1ba5 AM |
3693 | |
| 3694 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3695 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3696 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3697 | . std %r2,40(%r1) | |
| 3698 | . addis %r2,%r2,off@ha | |
| 3699 | . addi %r2,%r2,off@l | |
| 3700 | . b dest | |
| 3701 | ||
| 3702 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3703 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3704 | . addis %r11,%r2,xxx@toc@ha |
| 3705 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3706 | . addis %r2,%r2,off@ha |
| 3707 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3708 | . mtctr %r12 |
| ad8e1ba5 | 3709 | . bctr |
| ac2df442 AM |
3710 | |
| 3711 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3712 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3713 | */ |
| 3714 | ||
| 3715 | enum ppc_stub_type { | |
| 3716 | ppc_stub_none, | |
| 3717 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3718 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3719 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3720 | ppc_stub_plt_branch_r2off, |
| 794e51c0 AM |
3721 | ppc_stub_plt_call, |
| 3722 | ppc_stub_plt_call_r2save | |
| 721956f4 AM |
3723 | }; |
| 3724 | ||
| 3725 | struct ppc_stub_hash_entry { | |
| 3726 | ||
| 3727 | /* Base hash table entry structure. */ | |
| 3728 | struct bfd_hash_entry root; | |
| 3729 | ||
| ad8e1ba5 AM |
3730 | enum ppc_stub_type stub_type; |
| 3731 | ||
| 721956f4 AM |
3732 | /* The stub section. */ |
| 3733 | asection *stub_sec; | |
| 3734 | ||
| 3735 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3736 | bfd_vma stub_offset; | |
| 3737 | ||
| 3738 | /* Given the symbol's value and its section we can determine its final | |
| 3739 | value when building the stubs (so the stub knows where to jump. */ | |
| 3740 | bfd_vma target_value; | |
| 3741 | asection *target_section; | |
| 3742 | ||
| 721956f4 AM |
3743 | /* The symbol table entry, if any, that this was derived from. */ |
| 3744 | struct ppc_link_hash_entry *h; | |
| e054468f | 3745 | struct plt_entry *plt_ent; |
| 721956f4 AM |
3746 | |
| 3747 | /* Where this stub is being called from, or, in the case of combined | |
| 3748 | stub sections, the first input section in the group. */ | |
| 3749 | asection *id_sec; | |
| 6911b7dc AM |
3750 | |
| 3751 | /* Symbol st_other. */ | |
| 3752 | unsigned char other; | |
| 721956f4 AM |
3753 | }; |
| 3754 | ||
| 3755 | struct ppc_branch_hash_entry { | |
| 3756 | ||
| 3757 | /* Base hash table entry structure. */ | |
| 3758 | struct bfd_hash_entry root; | |
| 3759 | ||
| c456f082 | 3760 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3761 | unsigned int offset; |
| 3762 | ||
| 3763 | /* Generation marker. */ | |
| 3764 | unsigned int iter; | |
| 3765 | }; | |
| 65f38f15 | 3766 | |
| 19e08130 AM |
3767 | /* Used to track dynamic relocations for local symbols. */ |
| 3768 | struct ppc_dyn_relocs | |
| 3769 | { | |
| 3770 | struct ppc_dyn_relocs *next; | |
| 3771 | ||
| 3772 | /* The input section of the reloc. */ | |
| 3773 | asection *sec; | |
| 3774 | ||
| 3775 | /* Total number of relocs copied for the input section. */ | |
| 3776 | unsigned int count : 31; | |
| 3777 | ||
| 3778 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3779 | unsigned int ifunc : 1; | |
| 3780 | }; | |
| 3781 | ||
| 65f38f15 AM |
3782 | struct ppc_link_hash_entry |
| 3783 | { | |
| 3784 | struct elf_link_hash_entry elf; | |
| 3785 | ||
| b3fac117 AM |
3786 | union { |
| 3787 | /* A pointer to the most recently used stub hash entry against this | |
| 3788 | symbol. */ | |
| 3789 | struct ppc_stub_hash_entry *stub_cache; | |
| 3790 | ||
| 3791 | /* A pointer to the next symbol starting with a '.' */ | |
| 3792 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3793 | } u; | |
| 721956f4 | 3794 | |
| 65f38f15 | 3795 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3796 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3797 | |
| 721956f4 | 3798 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3799 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3800 | |
| e86ce104 AM |
3801 | /* Flag function code and descriptor symbols. */ |
| 3802 | unsigned int is_func:1; | |
| 3803 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3804 | unsigned int fake:1; |
| 411e1bfb | 3805 | |
| c5614fa4 AM |
3806 | /* Whether global opd/toc sym has been adjusted or not. |
| 3807 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3808 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3809 | unsigned int adjust_done:1; |
| 3810 | ||
| 99877b66 AM |
3811 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3812 | unsigned int was_undefined:1; | |
| 3813 | ||
| 411e1bfb | 3814 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3815 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3816 | corresponding relocs are encountered during check_relocs. | |
| 3817 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3818 | indicate the corresponding GOT entry type is not needed. | |
| 3819 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3820 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3821 | just for convenience in distinguishing the two cases. */ | |
| 3822 | #define TLS_GD 1 /* GD reloc. */ | |
| 3823 | #define TLS_LD 2 /* LD reloc. */ | |
| 3824 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3825 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3826 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 3827 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 3828 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 3829 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 3830 | unsigned char tls_mask; |
| 65f38f15 AM |
3831 | }; |
| 3832 | ||
| 3833 | /* ppc64 ELF linker hash table. */ | |
| 3834 | ||
| 3835 | struct ppc_link_hash_table | |
| 3836 | { | |
| 3837 | struct elf_link_hash_table elf; | |
| 3838 | ||
| 721956f4 AM |
3839 | /* The stub hash table. */ |
| 3840 | struct bfd_hash_table stub_hash_table; | |
| 3841 | ||
| 3842 | /* Another hash table for plt_branch stubs. */ | |
| 3843 | struct bfd_hash_table branch_hash_table; | |
| 3844 | ||
| 3b421ab3 AM |
3845 | /* Hash table for function prologue tocsave. */ |
| 3846 | htab_t tocsave_htab; | |
| 3847 | ||
| 721956f4 AM |
3848 | /* Linker stub bfd. */ |
| 3849 | bfd *stub_bfd; | |
| 3850 | ||
| 3851 | /* Linker call-backs. */ | |
| 4ce794b7 AM |
3852 | asection * (*add_stub_section) (const char *, asection *); |
| 3853 | void (*layout_sections_again) (void); | |
| 721956f4 AM |
3854 | |
| 3855 | /* Array to keep track of which stub sections have been created, and | |
| 3856 | information on stub grouping. */ | |
| 3857 | struct map_stub { | |
| 3858 | /* This is the section to which stubs in the group will be attached. */ | |
| 3859 | asection *link_sec; | |
| 3860 | /* The stub section. */ | |
| 3861 | asection *stub_sec; | |
| ad8e1ba5 AM |
3862 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
| 3863 | bfd_vma toc_off; | |
| 721956f4 AM |
3864 | } *stub_group; |
| 3865 | ||
| ad8e1ba5 AM |
3866 | /* Temp used when calculating TOC pointers. */ |
| 3867 | bfd_vma toc_curr; | |
| bf102f86 AM |
3868 | bfd *toc_bfd; |
| 3869 | asection *toc_first_sec; | |
| ad8e1ba5 | 3870 | |
| 8f3bab57 AM |
3871 | /* Highest input section id. */ |
| 3872 | int top_id; | |
| 3873 | ||
| 734b6cf9 AM |
3874 | /* Highest output section index. */ |
| 3875 | int top_index; | |
| 3876 | ||
| b3fac117 AM |
3877 | /* Used when adding symbols. */ |
| 3878 | struct ppc_link_hash_entry *dot_syms; | |
| 3879 | ||
| 734b6cf9 AM |
3880 | /* List of input sections for each output section. */ |
| 3881 | asection **input_list; | |
| 721956f4 | 3882 | |
| 65f38f15 | 3883 | /* Short-cuts to get to dynamic linker sections. */ |
| 4ce794b7 | 3884 | asection *got; |
| 4ce794b7 AM |
3885 | asection *plt; |
| 3886 | asection *relplt; | |
| e054468f AM |
3887 | asection *iplt; |
| 3888 | asection *reliplt; | |
| 4ce794b7 AM |
3889 | asection *dynbss; |
| 3890 | asection *relbss; | |
| 3891 | asection *glink; | |
| 82bd7b59 | 3892 | asection *sfpr; |
| 4ce794b7 AM |
3893 | asection *brlt; |
| 3894 | asection *relbrlt; | |
| 58d180e8 | 3895 | asection *glink_eh_frame; |
| ec338859 | 3896 | |
| 8387904d AM |
3897 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 3898 | struct ppc_link_hash_entry *tls_get_addr; | |
| 3899 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 3900 | |
| 927be08e AM |
3901 | /* The size of reliplt used by got entry relocs. */ |
| 3902 | bfd_size_type got_reli_size; | |
| 3903 | ||
| 9b5ecbd0 | 3904 | /* Statistics. */ |
| 794e51c0 | 3905 | unsigned long stub_count[ppc_stub_plt_call_r2save]; |
| 9b5ecbd0 | 3906 | |
| ee75fd95 AM |
3907 | /* Number of stubs against global syms. */ |
| 3908 | unsigned long stub_globals; | |
| 3909 | ||
| 794e51c0 AM |
3910 | /* Alignment of PLT call stubs. */ |
| 3911 | unsigned int plt_stub_align:4; | |
| 3912 | ||
| ee67d69a AM |
3913 | /* Set if we're linking code with function descriptors. */ |
| 3914 | unsigned int opd_abi:1; | |
| 3915 | ||
| 9df0ef5f AM |
3916 | /* Set if PLT call stubs should load r11. */ |
| 3917 | unsigned int plt_static_chain:1; | |
| 3918 | ||
| 794e51c0 AM |
3919 | /* Set if PLT call stubs need a read-read barrier. */ |
| 3920 | unsigned int plt_thread_safe:1; | |
| 3921 | ||
| ad8e1ba5 | 3922 | /* Set if we should emit symbols for stubs. */ |
| 99877b66 | 3923 | unsigned int emit_stub_syms:1; |
| ad8e1ba5 | 3924 | |
| a7f2871e AM |
3925 | /* Set if __tls_get_addr optimization should not be done. */ |
| 3926 | unsigned int no_tls_get_addr_opt:1; | |
| 3927 | ||
| 4c52953f | 3928 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 3929 | unsigned int do_multi_toc:1; |
| 4c52953f | 3930 | unsigned int multi_toc_needed:1; |
| 927be08e | 3931 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 3932 | unsigned int do_toc_opt:1; |
| 4c52953f | 3933 | |
| 5d1634d7 | 3934 | /* Set on error. */ |
| 99877b66 | 3935 | unsigned int stub_error:1; |
| 721956f4 | 3936 | |
| 7d9616d7 | 3937 | /* Temp used by ppc64_elf_process_dot_syms. */ |
| 99877b66 | 3938 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
3939 | |
| 3940 | /* Incremented every time we size stubs. */ | |
| 3941 | unsigned int stub_iteration; | |
| 5d1634d7 | 3942 | |
| 87d72d41 AM |
3943 | /* Small local sym cache. */ |
| 3944 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
3945 | }; |
| 3946 | ||
| 4c52953f AM |
3947 | /* Rename some of the generic section flags to better document how they |
| 3948 | are used here. */ | |
| b0dddeec AM |
3949 | |
| 3950 | /* Nonzero if this section has TLS related relocations. */ | |
| 3951 | #define has_tls_reloc sec_flg0 | |
| 3952 | ||
| 3953 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 3954 | #define has_tls_get_addr_call sec_flg1 | |
| 3955 | ||
| 3956 | /* Nonzero if this section has any toc or got relocs. */ | |
| 3957 | #define has_toc_reloc sec_flg2 | |
| 3958 | ||
| 3959 | /* Nonzero if this section has a call to another section that uses | |
| 3960 | the toc or got. */ | |
| d77c8a4b | 3961 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
3962 | |
| 3963 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 3964 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 3965 | #define call_check_done sec_flg5 |
| 4c52953f | 3966 | |
| 65f38f15 AM |
3967 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 3968 | ||
| 3969 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
3970 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 3971 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 3972 | |
| 721956f4 AM |
3973 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 3974 | ((struct ppc_stub_hash_entry *) \ | |
| 3975 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 3976 | ||
| 3977 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 3978 | ((struct ppc_branch_hash_entry *) \ | |
| 3979 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 3980 | ||
| 3981 | /* Create an entry in the stub hash table. */ | |
| 3982 | ||
| 3983 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
3984 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 3985 | struct bfd_hash_table *table, | |
| 3986 | const char *string) | |
| 721956f4 AM |
3987 | { |
| 3988 | /* Allocate the structure if it has not already been allocated by a | |
| 3989 | subclass. */ | |
| 3990 | if (entry == NULL) | |
| 3991 | { | |
| 3992 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 3993 | if (entry == NULL) | |
| 3994 | return entry; | |
| 3995 | } | |
| 3996 | ||
| 3997 | /* Call the allocation method of the superclass. */ | |
| 3998 | entry = bfd_hash_newfunc (entry, table, string); | |
| 3999 | if (entry != NULL) | |
| 4000 | { | |
| 4001 | struct ppc_stub_hash_entry *eh; | |
| 4002 | ||
| 4003 | /* Initialize the local fields. */ | |
| 4004 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4005 | eh->stub_type = ppc_stub_none; |
| 721956f4 AM |
4006 | eh->stub_sec = NULL; |
| 4007 | eh->stub_offset = 0; | |
| 4008 | eh->target_value = 0; | |
| 4009 | eh->target_section = NULL; | |
| 721956f4 | 4010 | eh->h = NULL; |
| 6911b7dc | 4011 | eh->plt_ent = NULL; |
| 721956f4 | 4012 | eh->id_sec = NULL; |
| 6911b7dc | 4013 | eh->other = 0; |
| 721956f4 AM |
4014 | } |
| 4015 | ||
| 4016 | return entry; | |
| 4017 | } | |
| 4018 | ||
| 4019 | /* Create an entry in the branch hash table. */ | |
| 4020 | ||
| 4021 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4022 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4023 | struct bfd_hash_table *table, | |
| 4024 | const char *string) | |
| 721956f4 AM |
4025 | { |
| 4026 | /* Allocate the structure if it has not already been allocated by a | |
| 4027 | subclass. */ | |
| 4028 | if (entry == NULL) | |
| 4029 | { | |
| 4030 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4031 | if (entry == NULL) | |
| 4032 | return entry; | |
| 4033 | } | |
| 4034 | ||
| 4035 | /* Call the allocation method of the superclass. */ | |
| 4036 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4037 | if (entry != NULL) | |
| 4038 | { | |
| 4039 | struct ppc_branch_hash_entry *eh; | |
| 4040 | ||
| 4041 | /* Initialize the local fields. */ | |
| 4042 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4043 | eh->offset = 0; | |
| 4044 | eh->iter = 0; | |
| 4045 | } | |
| 4046 | ||
| 4047 | return entry; | |
| 4048 | } | |
| 4049 | ||
| 65f38f15 AM |
4050 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4051 | ||
| 4052 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4053 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4054 | struct bfd_hash_table *table, | |
| 4055 | const char *string) | |
| 65f38f15 AM |
4056 | { |
| 4057 | /* Allocate the structure if it has not already been allocated by a | |
| 4058 | subclass. */ | |
| 4059 | if (entry == NULL) | |
| 4060 | { | |
| 4061 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4062 | if (entry == NULL) | |
| 4063 | return entry; | |
| 4064 | } | |
| 4065 | ||
| 4066 | /* Call the allocation method of the superclass. */ | |
| 4067 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4068 | if (entry != NULL) | |
| 4069 | { | |
| 4070 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4071 | ||
| b3fac117 | 4072 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4073 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4074 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4075 | ||
| 4076 | /* When making function calls, old ABI code references function entry | |
| 4077 | points (dot symbols), while new ABI code references the function | |
| 4078 | descriptor symbol. We need to make any combination of reference and | |
| 4079 | definition work together, without breaking archive linking. | |
| 4080 | ||
| 4081 | For a defined function "foo" and an undefined call to "bar": | |
| 4082 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4083 | "bar" too). | |
| 4084 | A new object defines "foo" and references "bar". | |
| 4085 | ||
| 4086 | A new object thus has no problem with its undefined symbols being | |
| 4087 | satisfied by definitions in an old object. On the other hand, the | |
| 4088 | old object won't have ".bar" satisfied by a new object. | |
| 4089 | ||
| 4090 | Keep a list of newly added dot-symbols. */ | |
| 4091 | ||
| 4092 | if (string[0] == '.') | |
| 4093 | { | |
| 4094 | struct ppc_link_hash_table *htab; | |
| 4095 | ||
| 4096 | htab = (struct ppc_link_hash_table *) table; | |
| 4097 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4098 | htab->dot_syms = eh; | |
| 4099 | } | |
| 65f38f15 AM |
4100 | } |
| 4101 | ||
| 4102 | return entry; | |
| 4103 | } | |
| 4104 | ||
| 3b421ab3 AM |
4105 | struct tocsave_entry { |
| 4106 | asection *sec; | |
| 4107 | bfd_vma offset; | |
| 4108 | }; | |
| 4109 | ||
| 4110 | static hashval_t | |
| 4111 | tocsave_htab_hash (const void *p) | |
| 4112 | { | |
| 4113 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4114 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4115 | } | |
| 4116 | ||
| 4117 | static int | |
| 4118 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4119 | { | |
| 4120 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4121 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4122 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4123 | } | |
| 4124 | ||
| 65f38f15 AM |
4125 | /* Create a ppc64 ELF linker hash table. */ |
| 4126 | ||
| 4127 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4128 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4129 | { |
| 4130 | struct ppc_link_hash_table *htab; | |
| 4131 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4132 | ||
| 4ce794b7 | 4133 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4134 | if (htab == NULL) |
| 4135 | return NULL; | |
| 4136 | ||
| 66eb6687 | 4137 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4138 | sizeof (struct ppc_link_hash_entry), |
| 4139 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4140 | { |
| e2d34d7d | 4141 | free (htab); |
| 65f38f15 AM |
4142 | return NULL; |
| 4143 | } | |
| 4144 | ||
| 721956f4 | 4145 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4146 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4147 | sizeof (struct ppc_stub_hash_entry))) | |
| 721956f4 AM |
4148 | return NULL; |
| 4149 | ||
| 4150 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4151 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4152 | sizeof (struct ppc_branch_hash_entry))) | |
| 721956f4 AM |
4153 | return NULL; |
| 4154 | ||
| 3b421ab3 AM |
4155 | htab->tocsave_htab = htab_try_create (1024, |
| 4156 | tocsave_htab_hash, | |
| 4157 | tocsave_htab_eq, | |
| 4158 | NULL); | |
| 4159 | if (htab->tocsave_htab == NULL) | |
| 4160 | return NULL; | |
| 4161 | ||
| 3254fd24 AM |
4162 | /* Initializing two fields of the union is just cosmetic. We really |
| 4163 | only care about glist, but when compiled on a 32-bit host the | |
| 4164 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4165 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4166 | htab->elf.init_got_refcount.refcount = 0; |
| 4167 | htab->elf.init_got_refcount.glist = NULL; | |
| 4168 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4169 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4170 | htab->elf.init_got_offset.offset = 0; | |
| 4171 | htab->elf.init_got_offset.glist = NULL; | |
| 4172 | htab->elf.init_plt_offset.offset = 0; | |
| 4173 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4174 | |
| 65f38f15 AM |
4175 | return &htab->elf.root; |
| 4176 | } | |
| 4177 | ||
| 721956f4 AM |
4178 | /* Free the derived linker hash table. */ |
| 4179 | ||
| 4180 | static void | |
| 4ce794b7 | 4181 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
| 721956f4 | 4182 | { |
| 3b421ab3 | 4183 | struct ppc_link_hash_table *htab = (struct ppc_link_hash_table *) hash; |
| 721956f4 | 4184 | |
| 3b421ab3 AM |
4185 | bfd_hash_table_free (&htab->stub_hash_table); |
| 4186 | bfd_hash_table_free (&htab->branch_hash_table); | |
| 4187 | if (htab->tocsave_htab) | |
| 4188 | htab_delete (htab->tocsave_htab); | |
| 9f7c3e5e | 4189 | _bfd_elf_link_hash_table_free (hash); |
| 721956f4 AM |
4190 | } |
| 4191 | ||
| bfeb4a28 AM |
4192 | /* Create sections for linker generated code. */ |
| 4193 | ||
| 4194 | static bfd_boolean | |
| 4195 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4196 | { | |
| 4197 | struct ppc_link_hash_table *htab; | |
| 4198 | flagword flags; | |
| 4199 | ||
| 4200 | htab = ppc_hash_table (info); | |
| 4201 | ||
| 4202 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4203 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
| 4204 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4205 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4206 | flags); | |
| 4207 | if (htab->sfpr == NULL | |
| 4208 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4209 | return FALSE; | |
| 4210 | ||
| 4211 | /* Create .glink for lazy dynamic linking support. */ | |
| 4212 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4213 | flags); | |
| 4214 | if (htab->glink == NULL | |
| 4215 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4216 | return FALSE; | |
| 4217 | ||
| 4218 | if (!info->no_ld_generated_unwind_info) | |
| 4219 | { | |
| 4220 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4221 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4222 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4223 | ".eh_frame", | |
| 4224 | flags); | |
| 4225 | if (htab->glink_eh_frame == NULL | |
| 4226 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4227 | return FALSE; | |
| 4228 | } | |
| 4229 | ||
| 4230 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 4231 | htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); | |
| 4232 | if (htab->iplt == NULL | |
| 4233 | || ! bfd_set_section_alignment (dynobj, htab->iplt, 3)) | |
| 4234 | return FALSE; | |
| 4235 | ||
| 4236 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4237 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4238 | htab->reliplt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4239 | ".rela.iplt", | |
| 4240 | flags); | |
| 4241 | if (htab->reliplt == NULL | |
| 4242 | || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3)) | |
| 4243 | return FALSE; | |
| 4244 | ||
| 4245 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4246 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4247 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4248 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4249 | flags); | |
| 4250 | if (htab->brlt == NULL | |
| 4251 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4252 | return FALSE; | |
| 4253 | ||
| 4254 | if (!info->shared) | |
| 4255 | return TRUE; | |
| 4256 | ||
| 4257 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4258 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4259 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4260 | ".rela.branch_lt", | |
| 4261 | flags); | |
| 4262 | if (htab->relbrlt == NULL | |
| 4263 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4264 | return FALSE; | |
| 4265 | ||
| 4266 | return TRUE; | |
| 4267 | } | |
| 4268 | ||
| e717da7e AM |
4269 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4270 | ||
| bfeb4a28 | 4271 | bfd_boolean |
| e717da7e AM |
4272 | ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) |
| 4273 | { | |
| 4274 | struct ppc_link_hash_table *htab; | |
| 4275 | ||
| 4276 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; | |
| 4277 | ||
| 4278 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4279 | linker created stub bfd. This ensures that the GOT header is at | |
| 4280 | the start of the output TOC section. */ | |
| 4281 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4282 | if (htab == NULL) |
| bfeb4a28 | 4283 | return FALSE; |
| e717da7e AM |
4284 | htab->stub_bfd = abfd; |
| 4285 | htab->elf.dynobj = abfd; | |
| bfeb4a28 AM |
4286 | |
| 4287 | if (info->relocatable) | |
| 4288 | return TRUE; | |
| 4289 | ||
| 4290 | return create_linkage_sections (htab->elf.dynobj, info); | |
| e717da7e AM |
4291 | } |
| 4292 | ||
| 721956f4 AM |
4293 | /* Build a name for an entry in the stub hash table. */ |
| 4294 | ||
| 4295 | static char * | |
| 4ce794b7 AM |
4296 | ppc_stub_name (const asection *input_section, |
| 4297 | const asection *sym_sec, | |
| 4298 | const struct ppc_link_hash_entry *h, | |
| 4299 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4300 | { |
| 4301 | char *stub_name; | |
| bcaa2f82 | 4302 | ssize_t len; |
| 721956f4 AM |
4303 | |
| 4304 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4305 | offsets from a sym as a branch target? In fact, we could | |
| 4306 | probably assume the addend is always zero. */ | |
| 4307 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4308 | ||
| 4309 | if (h) | |
| 4310 | { | |
| 4311 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4312 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4313 | if (stub_name == NULL) |
| 4314 | return stub_name; | |
| 4315 | ||
| bcaa2f82 AM |
4316 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4317 | input_section->id & 0xffffffff, | |
| 4318 | h->elf.root.root.string, | |
| 4319 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4320 | } |
| 4321 | else | |
| 4322 | { | |
| ad8e1ba5 | 4323 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4324 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4325 | if (stub_name == NULL) |
| 4326 | return stub_name; | |
| 4327 | ||
| bcaa2f82 AM |
4328 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4329 | input_section->id & 0xffffffff, | |
| 4330 | sym_sec->id & 0xffffffff, | |
| 4331 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4332 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4333 | } |
| bcaa2f82 | 4334 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4335 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4336 | return stub_name; |
| 4337 | } | |
| 4338 | ||
| 4339 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4340 | creating the stub name takes a bit of time. */ | |
| 4341 | ||
| 4342 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4343 | ppc_get_stub_entry (const asection *input_section, |
| 4344 | const asection *sym_sec, | |
| 039b3fef | 4345 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4346 | const Elf_Internal_Rela *rel, |
| 4347 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4348 | { |
| 4349 | struct ppc_stub_hash_entry *stub_entry; | |
| 721956f4 AM |
4350 | const asection *id_sec; |
| 4351 | ||
| 4352 | /* If this input section is part of a group of sections sharing one | |
| 4353 | stub section, then use the id of the first section in the group. | |
| 4354 | Stub names need to include a section id, as there may well be | |
| 4355 | more than one stub used to reach say, printf, and we need to | |
| 4356 | distinguish between them. */ | |
| 4357 | id_sec = htab->stub_group[input_section->id].link_sec; | |
| 4358 | ||
| b3fac117 AM |
4359 | if (h != NULL && h->u.stub_cache != NULL |
| 4360 | && h->u.stub_cache->h == h | |
| 4361 | && h->u.stub_cache->id_sec == id_sec) | |
| 721956f4 | 4362 | { |
| b3fac117 | 4363 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4364 | } |
| 4365 | else | |
| 4366 | { | |
| 4367 | char *stub_name; | |
| 4368 | ||
| 4369 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
| 4370 | if (stub_name == NULL) | |
| 4371 | return NULL; | |
| 4372 | ||
| 4373 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4374 | stub_name, FALSE, FALSE); |
| 721956f4 | 4375 | if (h != NULL) |
| b3fac117 | 4376 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4377 | |
| 4378 | free (stub_name); | |
| 4379 | } | |
| 4380 | ||
| 4381 | return stub_entry; | |
| 4382 | } | |
| 4383 | ||
| 4384 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4385 | stub entry are initialised. */ | |
| 4386 | ||
| 4387 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4388 | ppc_add_stub (const char *stub_name, |
| 4389 | asection *section, | |
| 25f53a85 | 4390 | struct bfd_link_info *info) |
| 721956f4 | 4391 | { |
| 25f53a85 | 4392 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 721956f4 AM |
4393 | asection *link_sec; |
| 4394 | asection *stub_sec; | |
| 4395 | struct ppc_stub_hash_entry *stub_entry; | |
| 4396 | ||
| 4397 | link_sec = htab->stub_group[section->id].link_sec; | |
| 4398 | stub_sec = htab->stub_group[section->id].stub_sec; | |
| 4399 | if (stub_sec == NULL) | |
| 4400 | { | |
| 4401 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
| 4402 | if (stub_sec == NULL) | |
| 4403 | { | |
| d4c88bbb | 4404 | size_t namelen; |
| 721956f4 AM |
4405 | bfd_size_type len; |
| 4406 | char *s_name; | |
| 4407 | ||
| d4c88bbb AM |
4408 | namelen = strlen (link_sec->name); |
| 4409 | len = namelen + sizeof (STUB_SUFFIX); | |
| 721956f4 AM |
4410 | s_name = bfd_alloc (htab->stub_bfd, len); |
| 4411 | if (s_name == NULL) | |
| 4412 | return NULL; | |
| 4413 | ||
| d4c88bbb AM |
4414 | memcpy (s_name, link_sec->name, namelen); |
| 4415 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 721956f4 AM |
4416 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
| 4417 | if (stub_sec == NULL) | |
| 4418 | return NULL; | |
| 4419 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
| 4420 | } | |
| 4421 | htab->stub_group[section->id].stub_sec = stub_sec; | |
| 4422 | } | |
| 4423 | ||
| 4424 | /* Enter this entry into the linker stub hash table. */ | |
| 4425 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4426 | TRUE, FALSE); |
| 721956f4 AM |
4427 | if (stub_entry == NULL) |
| 4428 | { | |
| 8de848d8 | 4429 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4430 | section->owner, stub_name); |
| 721956f4 AM |
4431 | return NULL; |
| 4432 | } | |
| 4433 | ||
| 4434 | stub_entry->stub_sec = stub_sec; | |
| 4435 | stub_entry->stub_offset = 0; | |
| 4436 | stub_entry->id_sec = link_sec; | |
| 4437 | return stub_entry; | |
| 4438 | } | |
| 4439 | ||
| e717da7e AM |
4440 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4441 | not already done. */ | |
| 65f38f15 | 4442 | |
| b34976b6 | 4443 | static bfd_boolean |
| e717da7e | 4444 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4445 | { |
| e717da7e AM |
4446 | asection *got, *relgot; |
| 4447 | flagword flags; | |
| 4448 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4449 | |
| 0c8d6e5c | 4450 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4451 | return FALSE; |
| 4dfe6ac6 NC |
4452 | if (htab == NULL) |
| 4453 | return FALSE; | |
| 0ffa91dd | 4454 | |
| 4ce794b7 | 4455 | if (!htab->got) |
| e717da7e AM |
4456 | { |
| 4457 | if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4458 | return FALSE; | |
| 4459 | ||
| 3d4d4302 | 4460 | htab->got = bfd_get_linker_section (htab->elf.dynobj, ".got"); |
| e717da7e AM |
4461 | if (!htab->got) |
| 4462 | abort (); | |
| 4463 | } | |
| 4464 | ||
| 4465 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4466 | | SEC_LINKER_CREATED); | |
| 4467 | ||
| c456f082 | 4468 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4469 | if (!got |
| e717da7e AM |
4470 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4471 | return FALSE; | |
| 65f38f15 | 4472 | |
| c456f082 AM |
4473 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4474 | flags | SEC_READONLY); | |
| e717da7e | 4475 | if (!relgot |
| e717da7e | 4476 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4477 | return FALSE; |
| e717da7e AM |
4478 | |
| 4479 | ppc64_elf_tdata (abfd)->got = got; | |
| 4480 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4481 | return TRUE; |
| 65f38f15 | 4482 | } |
| 5bd4f169 | 4483 | |
| 82bd7b59 | 4484 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4485 | |
| b34976b6 | 4486 | static bfd_boolean |
| 4ce794b7 | 4487 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4488 | { |
| 65f38f15 | 4489 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4490 | |
| 65f38f15 | 4491 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4492 | return FALSE; |
| 65f38f15 | 4493 | |
| e717da7e | 4494 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4495 | if (htab == NULL) |
| 4496 | return FALSE; | |
| 4497 | ||
| e717da7e | 4498 | if (!htab->got) |
| 3d4d4302 AM |
4499 | htab->got = bfd_get_linker_section (dynobj, ".got"); |
| 4500 | htab->plt = bfd_get_linker_section (dynobj, ".plt"); | |
| 4501 | htab->relplt = bfd_get_linker_section (dynobj, ".rela.plt"); | |
| 4502 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); | |
| 65f38f15 | 4503 | if (!info->shared) |
| 3d4d4302 | 4504 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4505 | |
| e717da7e | 4506 | if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss |
| 4ce794b7 | 4507 | || (!info->shared && !htab->relbss)) |
| 65f38f15 AM |
4508 | abort (); |
| 4509 | ||
| b34976b6 | 4510 | return TRUE; |
| 5bd4f169 AM |
4511 | } |
| 4512 | ||
| b31867b6 AM |
4513 | /* Follow indirect and warning symbol links. */ |
| 4514 | ||
| 4515 | static inline struct bfd_link_hash_entry * | |
| 4516 | follow_link (struct bfd_link_hash_entry *h) | |
| 4517 | { | |
| 4518 | while (h->type == bfd_link_hash_indirect | |
| 4519 | || h->type == bfd_link_hash_warning) | |
| 4520 | h = h->u.i.link; | |
| 4521 | return h; | |
| 4522 | } | |
| 4523 | ||
| 4524 | static inline struct elf_link_hash_entry * | |
| 4525 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4526 | { | |
| 4527 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4528 | } | |
| 4529 | ||
| 4530 | static inline struct ppc_link_hash_entry * | |
| 4531 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4532 | { | |
| 4533 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4534 | } | |
| 4535 | ||
| 40d16e0b AM |
4536 | /* Merge PLT info on FROM with that on TO. */ |
| 4537 | ||
| 4538 | static void | |
| 4539 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4540 | struct ppc_link_hash_entry *to) | |
| 4541 | { | |
| 4542 | if (from->elf.plt.plist != NULL) | |
| 4543 | { | |
| 4544 | if (to->elf.plt.plist != NULL) | |
| 4545 | { | |
| 4546 | struct plt_entry **entp; | |
| 4547 | struct plt_entry *ent; | |
| 4548 | ||
| 4549 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4550 | { | |
| 4551 | struct plt_entry *dent; | |
| 4552 | ||
| 4553 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4554 | if (dent->addend == ent->addend) | |
| 4555 | { | |
| 4556 | dent->plt.refcount += ent->plt.refcount; | |
| 4557 | *entp = ent->next; | |
| 4558 | break; | |
| 4559 | } | |
| 4560 | if (dent == NULL) | |
| 4561 | entp = &ent->next; | |
| 4562 | } | |
| 4563 | *entp = to->elf.plt.plist; | |
| 4564 | } | |
| 4565 | ||
| 4566 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4567 | from->elf.plt.plist = NULL; | |
| 4568 | } | |
| 4569 | } | |
| 4570 | ||
| 65f38f15 AM |
4571 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4572 | ||
| 4573 | static void | |
| fcfa13d2 AM |
4574 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4575 | struct elf_link_hash_entry *dir, | |
| 4576 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4577 | { |
| 4578 | struct ppc_link_hash_entry *edir, *eind; | |
| 4579 | ||
| 4580 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4581 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4582 | ||
| c79d6685 AM |
4583 | edir->is_func |= eind->is_func; |
| 4584 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4585 | edir->tls_mask |= eind->tls_mask; | |
| 4586 | if (eind->oh != NULL) | |
| 4587 | edir->oh = ppc_follow_link (eind->oh); | |
| 4588 | ||
| 4589 | /* If called to transfer flags for a weakdef during processing | |
| 4590 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4591 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4592 | if (!(ELIMINATE_COPY_RELOCS | |
| 4593 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4594 | && edir->elf.dynamic_adjusted)) | |
| 4595 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4596 | ||
| 4597 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4598 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4599 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4600 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4601 | ||
| 411e1bfb | 4602 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4603 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4604 | { |
| bbd7ec4a AM |
4605 | if (edir->dyn_relocs != NULL) |
| 4606 | { | |
| 6061a67d AM |
4607 | struct elf_dyn_relocs **pp; |
| 4608 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4609 | |
| fcfa13d2 | 4610 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4611 | list. Merge any entries against the same section. */ |
| 4612 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4613 | { | |
| 6061a67d | 4614 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4615 | |
| 4616 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4617 | if (q->sec == p->sec) | |
| 4618 | { | |
| 4619 | q->pc_count += p->pc_count; | |
| 4620 | q->count += p->count; | |
| 4621 | *pp = p->next; | |
| 4622 | break; | |
| 4623 | } | |
| 4624 | if (q == NULL) | |
| 4625 | pp = &p->next; | |
| 4626 | } | |
| 4627 | *pp = edir->dyn_relocs; | |
| 4628 | } | |
| 4629 | ||
| 65f38f15 AM |
4630 | edir->dyn_relocs = eind->dyn_relocs; |
| 4631 | eind->dyn_relocs = NULL; | |
| 4632 | } | |
| 65f38f15 | 4633 | |
| 68ba6d40 AM |
4634 | /* If we were called to copy over info for a weak sym, that's all. |
| 4635 | You might think dyn_relocs need not be copied over; After all, | |
| 4636 | both syms will be dynamic or both non-dynamic so we're just | |
| 68ffbac6 | 4637 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
| 68ba6d40 AM |
4638 | code in ppc64_elf_adjust_dynamic_symbol needs to check for |
| 4639 | dyn_relocs in read-only sections, and it does so on what is the | |
| 4640 | DIR sym here. */ | |
| 4641 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4642 | return; | |
| 4643 | ||
| 81848ca0 AM |
4644 | /* Copy over got entries that we may have already seen to the |
| 4645 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4646 | if (eind->elf.got.glist != NULL) |
| 4647 | { | |
| 4648 | if (edir->elf.got.glist != NULL) | |
| 4649 | { | |
| 4650 | struct got_entry **entp; | |
| 4651 | struct got_entry *ent; | |
| 4652 | ||
| 4653 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4654 | { | |
| 4655 | struct got_entry *dent; | |
| 4656 | ||
| 4657 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4658 | if (dent->addend == ent->addend | |
| e717da7e | 4659 | && dent->owner == ent->owner |
| 411e1bfb AM |
4660 | && dent->tls_type == ent->tls_type) |
| 4661 | { | |
| 4662 | dent->got.refcount += ent->got.refcount; | |
| 4663 | *entp = ent->next; | |
| 4664 | break; | |
| 4665 | } | |
| 4666 | if (dent == NULL) | |
| 4667 | entp = &ent->next; | |
| 4668 | } | |
| 4669 | *entp = edir->elf.got.glist; | |
| 4670 | } | |
| 4671 | ||
| 4672 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4673 | eind->elf.got.glist = NULL; | |
| 4674 | } | |
| 4675 | ||
| 4676 | /* And plt entries. */ | |
| 40d16e0b | 4677 | move_plt_plist (eind, edir); |
| 411e1bfb | 4678 | |
| fcfa13d2 | 4679 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4680 | { |
| fcfa13d2 AM |
4681 | if (edir->elf.dynindx != -1) |
| 4682 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4683 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4684 | edir->elf.dynindx = eind->elf.dynindx; |
| 4685 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4686 | eind->elf.dynindx = -1; | |
| 4687 | eind->elf.dynstr_index = 0; | |
| 4688 | } | |
| 411e1bfb AM |
4689 | } |
| 4690 | ||
| 8387904d AM |
4691 | /* Find the function descriptor hash entry from the given function code |
| 4692 | hash entry FH. Link the entries via their OH fields. */ | |
| 4693 | ||
| 4694 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4695 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4696 | { |
| 4697 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4698 | ||
| 4699 | if (fdh == NULL) | |
| 4700 | { | |
| 4701 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4702 | ||
| 4703 | fdh = (struct ppc_link_hash_entry *) | |
| 4704 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4705 | if (fdh == NULL) |
| 4706 | return fdh; | |
| 4707 | ||
| 4708 | fdh->is_func_descriptor = 1; | |
| 4709 | fdh->oh = fh; | |
| 4710 | fh->is_func = 1; | |
| 4711 | fh->oh = fdh; | |
| 8387904d AM |
4712 | } |
| 4713 | ||
| b31867b6 | 4714 | return ppc_follow_link (fdh); |
| 8387904d AM |
4715 | } |
| 4716 | ||
| bb700d78 AM |
4717 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4718 | ||
| 4719 | static struct ppc_link_hash_entry * | |
| 4720 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4721 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4722 | { |
| 4723 | bfd *abfd; | |
| 4724 | asymbol *newsym; | |
| 4725 | struct bfd_link_hash_entry *bh; | |
| 4726 | struct ppc_link_hash_entry *fdh; | |
| 4727 | ||
| 4728 | abfd = fh->elf.root.u.undef.abfd; | |
| 4729 | newsym = bfd_make_empty_symbol (abfd); | |
| 4730 | newsym->name = fh->elf.root.root.string + 1; | |
| 4731 | newsym->section = bfd_und_section_ptr; | |
| 4732 | newsym->value = 0; | |
| 908b32fc | 4733 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4734 | |
| 4735 | bh = NULL; | |
| 4736 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4737 | newsym->flags, newsym->section, | |
| 4738 | newsym->value, NULL, FALSE, FALSE, | |
| 4739 | &bh)) | |
| 4740 | return NULL; | |
| 4741 | ||
| 4742 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4743 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4744 | fdh->fake = 1; |
| 4745 | fdh->is_func_descriptor = 1; | |
| 4746 | fdh->oh = fh; | |
| 4747 | fh->is_func = 1; | |
| 4748 | fh->oh = fdh; | |
| bb700d78 AM |
4749 | return fdh; |
| 4750 | } | |
| 4751 | ||
| 8387904d AM |
4752 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4753 | function type. */ | |
| 555cd476 AM |
4754 | |
| 4755 | static bfd_boolean | |
| c16153ae | 4756 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4757 | struct bfd_link_info *info, |
| 555cd476 | 4758 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4759 | const char **name, |
| 555cd476 AM |
4760 | flagword *flags ATTRIBUTE_UNUSED, |
| 4761 | asection **sec, | |
| 4762 | bfd_vma *value ATTRIBUTE_UNUSED) | |
| 4763 | { | |
| f64b2e8d NC |
4764 | if ((ibfd->flags & DYNAMIC) == 0 |
| 4765 | && ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE) | |
| 4766 | elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; | |
| 4767 | ||
| e054468f | 4768 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
| c16153ae L |
4769 | { |
| 4770 | if ((ibfd->flags & DYNAMIC) == 0) | |
| f64b2e8d | 4771 | elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; |
| c16153ae | 4772 | } |
| e054468f AM |
4773 | else if (ELF_ST_TYPE (isym->st_info) == STT_FUNC) |
| 4774 | ; | |
| 4775 | else if (*sec != NULL | |
| 70cc837d | 4776 | && strcmp ((*sec)->name, ".opd") == 0) |
| 555cd476 | 4777 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); |
| 433817dd | 4778 | |
| 6911b7dc AM |
4779 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4780 | { | |
| 4781 | if (abiversion (ibfd) == 0) | |
| 4782 | set_abiversion (ibfd, 2); | |
| 4783 | else if (abiversion (ibfd) == 1) | |
| 4784 | { | |
| 4785 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4786 | " for ABI version 1\n"), name); | |
| 4787 | bfd_set_error (bfd_error_bad_value); | |
| 4788 | return FALSE; | |
| 4789 | } | |
| 4790 | } | |
| 4791 | ||
| 555cd476 AM |
4792 | return TRUE; |
| 4793 | } | |
| 4794 | ||
| 6911b7dc AM |
4795 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4796 | ||
| 4797 | static void | |
| 4798 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4799 | const Elf_Internal_Sym *isym, | |
| 4800 | bfd_boolean definition, | |
| 4801 | bfd_boolean dynamic) | |
| 4802 | { | |
| 4803 | if (definition && !dynamic) | |
| 4804 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4805 | | ELF_ST_VISIBILITY (h->other)); | |
| 4806 | } | |
| 4807 | ||
| 8387904d | 4808 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
4809 | inclusion of a new ABI object archive that defines "bar". |
| 4810 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 4811 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
4812 | |
| 4813 | static struct elf_link_hash_entry * | |
| 4814 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 4815 | struct bfd_link_info *info, | |
| 4816 | const char *name) | |
| 4817 | { | |
| 4818 | struct elf_link_hash_entry *h; | |
| 4819 | char *dot_name; | |
| 4820 | size_t len; | |
| 4821 | ||
| 4822 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
4823 | if (h != NULL |
| 4824 | /* Don't return this sym if it is a fake function descriptor | |
| 4825 | created by add_symbol_adjust. */ | |
| 4826 | && !(h->root.type == bfd_link_hash_undefweak | |
| 4827 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
4828 | return h; |
| 4829 | ||
| 4830 | if (name[0] == '.') | |
| 4831 | return h; | |
| 4832 | ||
| 4833 | len = strlen (name); | |
| 4834 | dot_name = bfd_alloc (abfd, len + 2); | |
| 4835 | if (dot_name == NULL) | |
| 4836 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 4837 | dot_name[0] = '.'; | |
| 4838 | memcpy (dot_name + 1, name, len + 1); | |
| 4839 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 4840 | bfd_release (abfd, dot_name); | |
| 4841 | return h; | |
| 4842 | } | |
| 4843 | ||
| 4844 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
4845 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 4846 | are made weak. This stops later archive searches from including an | |
| 4847 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
4848 | prevents the linker complaining about undefined symbols. |
| 4849 | We also check and correct mismatched symbol visibility here. The | |
| 4850 | most restrictive visibility of the function descriptor and the | |
| 4851 | function entry symbol is used. */ | |
| 8387904d AM |
4852 | |
| 4853 | static bfd_boolean | |
| b3fac117 | 4854 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 4855 | { |
| 8387904d AM |
4856 | struct ppc_link_hash_table *htab; |
| 4857 | struct ppc_link_hash_entry *fdh; | |
| 4858 | ||
| b3fac117 | 4859 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 8387904d AM |
4860 | return TRUE; |
| 4861 | ||
| b3fac117 AM |
4862 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 4863 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 4864 | |
| b3fac117 AM |
4865 | if (eh->elf.root.root.string[0] != '.') |
| 4866 | abort (); | |
| 8387904d | 4867 | |
| b3fac117 | 4868 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4869 | if (htab == NULL) |
| 4870 | return FALSE; | |
| 4871 | ||
| b31867b6 AM |
4872 | fdh = lookup_fdh (eh, htab); |
| 4873 | if (fdh == NULL) | |
| 4874 | { | |
| 4875 | if (!info->relocatable | |
| 4876 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 4877 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 4878 | && eh->elf.ref_regular) | |
| 4879 | { | |
| 4880 | /* Make an undefweak function descriptor sym, which is enough to | |
| 4881 | pull in an --as-needed shared lib, but won't cause link | |
| 4882 | errors. Archives are handled elsewhere. */ | |
| 4883 | fdh = make_fdh (info, eh); | |
| 4884 | if (fdh == NULL) | |
| 4885 | return FALSE; | |
| 4886 | fdh->elf.ref_regular = 1; | |
| 4887 | } | |
| bb700d78 | 4888 | } |
| b31867b6 | 4889 | else |
| 8387904d | 4890 | { |
| 35b0ce59 AM |
4891 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 4892 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 4893 | if (entry_vis < descr_vis) | |
| 4894 | fdh->elf.other += entry_vis - descr_vis; | |
| 4895 | else if (entry_vis > descr_vis) | |
| 4896 | eh->elf.other += descr_vis - entry_vis; | |
| 4897 | ||
| e87d886e AM |
4898 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 4899 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 4900 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
4901 | { |
| 4902 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 4903 | eh->was_undefined = 1; | |
| 4904 | htab->twiddled_syms = 1; | |
| 4905 | } | |
| 8387904d | 4906 | } |
| 99877b66 | 4907 | |
| 8387904d AM |
4908 | return TRUE; |
| 4909 | } | |
| 4910 | ||
| b3fac117 AM |
4911 | /* Process list of dot-symbols we made in link_hash_newfunc. */ |
| 4912 | ||
| 8387904d | 4913 | static bfd_boolean |
| 7d9616d7 | 4914 | ppc64_elf_process_dot_syms (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 4915 | { |
| 99877b66 | 4916 | struct ppc_link_hash_table *htab; |
| b3fac117 | 4917 | struct ppc_link_hash_entry **p, *eh; |
| 433817dd | 4918 | |
| 0c8d6e5c | 4919 | if (!is_ppc64_elf (info->output_bfd)) |
| 35b0ce59 | 4920 | return TRUE; |
| 4dfe6ac6 NC |
4921 | htab = ppc_hash_table (info); |
| 4922 | if (htab == NULL) | |
| 4923 | return FALSE; | |
| 35b0ce59 | 4924 | |
| 0c8d6e5c | 4925 | if (is_ppc64_elf (ibfd)) |
| b3fac117 AM |
4926 | { |
| 4927 | p = &htab->dot_syms; | |
| 4928 | while ((eh = *p) != NULL) | |
| 4929 | { | |
| 4930 | *p = NULL; | |
| 1c865ab2 AM |
4931 | if (&eh->elf == htab->elf.hgot) |
| 4932 | ; | |
| 4933 | else if (htab->elf.hgot == NULL | |
| 4934 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 4935 | htab->elf.hgot = &eh->elf; | |
| 4936 | else if (!add_symbol_adjust (eh, info)) | |
| b3fac117 AM |
4937 | return FALSE; |
| 4938 | p = &eh->u.next_dot_sym; | |
| 4939 | } | |
| 4940 | } | |
| 4941 | ||
| 4942 | /* Clear the list for non-ppc64 input files. */ | |
| 4943 | p = &htab->dot_syms; | |
| 4944 | while ((eh = *p) != NULL) | |
| 4945 | { | |
| 4946 | *p = NULL; | |
| 4947 | p = &eh->u.next_dot_sym; | |
| 4948 | } | |
| 99877b66 AM |
4949 | |
| 4950 | /* We need to fix the undefs list for any syms we have twiddled to | |
| 4951 | undef_weak. */ | |
| 4952 | if (htab->twiddled_syms) | |
| 4953 | { | |
| 77cfaee6 | 4954 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
4955 | htab->twiddled_syms = 0; |
| 4956 | } | |
| b3fac117 | 4957 | return TRUE; |
| 8387904d AM |
4958 | } |
| 4959 | ||
| 97fed1c9 JJ |
4960 | /* Undo hash table changes when an --as-needed input file is determined |
| 4961 | not to be needed. */ | |
| 4962 | ||
| 4963 | static bfd_boolean | |
| e5034e59 AM |
4964 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 4965 | struct bfd_link_info *info, | |
| 4966 | enum notice_asneeded_action act) | |
| 97fed1c9 | 4967 | { |
| e5034e59 AM |
4968 | if (act == notice_not_needed) |
| 4969 | { | |
| 4970 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4971 | |
| e5034e59 AM |
4972 | if (htab == NULL) |
| 4973 | return FALSE; | |
| 4dfe6ac6 | 4974 | |
| e5034e59 AM |
4975 | htab->dot_syms = NULL; |
| 4976 | } | |
| 4977 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
4978 | } |
| 4979 | ||
| aa374f67 AM |
4980 | /* If --just-symbols against a final linked binary, then assume we need |
| 4981 | toc adjusting stubs when calling functions defined there. */ | |
| 4982 | ||
| 4983 | static void | |
| 4984 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 4985 | { | |
| 4986 | if ((sec->flags & SEC_CODE) != 0 | |
| 4987 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 4988 | && is_ppc64_elf (sec->owner)) | |
| 4989 | { | |
| 4990 | asection *got = bfd_get_section_by_name (sec->owner, ".got"); | |
| 4991 | if (got != NULL | |
| 4992 | && got->size >= elf_backend_got_header_size | |
| 4993 | && bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| 4994 | sec->has_toc_reloc = 1; | |
| 4995 | } | |
| 4996 | _bfd_elf_link_just_syms (sec, info); | |
| 4997 | } | |
| 4998 | ||
| e054468f | 4999 | static struct plt_entry ** |
| 4ce794b7 AM |
5000 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5001 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5002 | { |
| 5003 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5004 | struct plt_entry **local_plt; |
| f961d9dd | 5005 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5006 | |
| 5007 | if (local_got_ents == NULL) | |
| 5008 | { | |
| 5009 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5010 | ||
| e054468f AM |
5011 | size *= (sizeof (*local_got_ents) |
| 5012 | + sizeof (*local_plt) | |
| 5013 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5014 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5015 | if (local_got_ents == NULL) |
| e054468f | 5016 | return NULL; |
| 411e1bfb AM |
5017 | elf_local_got_ents (abfd) = local_got_ents; |
| 5018 | } | |
| 5019 | ||
| e054468f | 5020 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5021 | { |
| 5022 | struct got_entry *ent; | |
| 5023 | ||
| 5024 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5025 | if (ent->addend == r_addend |
| 5026 | && ent->owner == abfd | |
| 5027 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5028 | break; |
| 5029 | if (ent == NULL) | |
| 5030 | { | |
| 5031 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5032 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5033 | if (ent == NULL) |
| 5034 | return FALSE; | |
| 5035 | ent->next = local_got_ents[r_symndx]; | |
| 5036 | ent->addend = r_addend; | |
| e717da7e | 5037 | ent->owner = abfd; |
| 411e1bfb | 5038 | ent->tls_type = tls_type; |
| 927be08e | 5039 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5040 | ent->got.refcount = 0; |
| 5041 | local_got_ents[r_symndx] = ent; | |
| 5042 | } | |
| 5043 | ent->got.refcount += 1; | |
| 5044 | } | |
| 5045 | ||
| e054468f | 5046 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5047 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5048 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5049 | |
| 5050 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5051 | } |
| 5052 | ||
| 411e1bfb | 5053 | static bfd_boolean |
| e054468f | 5054 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5055 | { |
| 411e1bfb | 5056 | struct plt_entry *ent; |
| 1e2f5b6e | 5057 | |
| e054468f | 5058 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5059 | if (ent->addend == addend) |
| 5060 | break; | |
| 5061 | if (ent == NULL) | |
| 1e2f5b6e | 5062 | { |
| 411e1bfb | 5063 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5064 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5065 | if (ent == NULL) |
| 5066 | return FALSE; | |
| e054468f | 5067 | ent->next = *plist; |
| 411e1bfb AM |
5068 | ent->addend = addend; |
| 5069 | ent->plt.refcount = 0; | |
| e054468f | 5070 | *plist = ent; |
| 1e2f5b6e | 5071 | } |
| 411e1bfb | 5072 | ent->plt.refcount += 1; |
| b34976b6 | 5073 | return TRUE; |
| 1e2f5b6e AM |
5074 | } |
| 5075 | ||
| e054468f AM |
5076 | static bfd_boolean |
| 5077 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5078 | { | |
| 5079 | return (r_type == R_PPC64_REL24 | |
| 5080 | || r_type == R_PPC64_REL14 | |
| 5081 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5082 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5083 | || r_type == R_PPC64_ADDR24 | |
| 5084 | || r_type == R_PPC64_ADDR14 | |
| 5085 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5086 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5087 | } | |
| 5088 | ||
| 5bd4f169 | 5089 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5090 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5091 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5092 | |
| b34976b6 | 5093 | static bfd_boolean |
| 4ce794b7 AM |
5094 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5095 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5096 | { |
| 65f38f15 | 5097 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5098 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5099 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5100 | const Elf_Internal_Rela *rel; |
| 5101 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5102 | asection *sreloc; |
| 1e2f5b6e | 5103 | asection **opd_sym_map; |
| 3a71aa26 | 5104 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5105 | |
| 1049f94e | 5106 | if (info->relocatable) |
| b34976b6 | 5107 | return TRUE; |
| 5bd4f169 | 5108 | |
| 680a3378 AM |
5109 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5110 | In particular, any relocs in such sections should not affect GOT | |
| 5111 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5112 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5113 | relocs, and there's not much point in propagating relocs to shared | |
| 5114 | libs that the dynamic linker won't relocate. */ | |
| 5115 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5116 | return TRUE; | |
| 5117 | ||
| 0c8d6e5c | 5118 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5119 | |
| 65f38f15 | 5120 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5121 | if (htab == NULL) |
| 5122 | return FALSE; | |
| 5123 | ||
| 3a71aa26 AM |
5124 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5125 | FALSE, FALSE, TRUE); | |
| 5126 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5127 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5128 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5129 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5130 | sreloc = NULL; |
| 1e2f5b6e | 5131 | opd_sym_map = NULL; |
| 70cc837d | 5132 | if (strcmp (sec->name, ".opd") == 0) |
| 1e2f5b6e AM |
5133 | { |
| 5134 | /* Garbage collection needs some extra help with .opd sections. | |
| 5135 | We don't want to necessarily keep everything referenced by | |
| 5136 | relocs in .opd, as that would keep all functions. Instead, | |
| 5137 | if we reference an .opd symbol (a function descriptor), we | |
| 5138 | want to keep the function code symbol's section. This is | |
| 5139 | easy for global symbols, but for local syms we need to keep | |
| 74f0fb50 | 5140 | information about the associated function section. */ |
| 1e2f5b6e AM |
5141 | bfd_size_type amt; |
| 5142 | ||
| ee67d69a AM |
5143 | if (abiversion (abfd) == 0) |
| 5144 | set_abiversion (abfd, 1); | |
| 5145 | else if (abiversion (abfd) == 2) | |
| 5146 | { | |
| 5147 | info->callbacks->einfo (_("%P: .opd not allowed in ABI version %d\n"), | |
| 5148 | abiversion (abfd)); | |
| 5149 | bfd_set_error (bfd_error_bad_value); | |
| 5150 | return FALSE; | |
| 5151 | } | |
| 74f0fb50 | 5152 | amt = sec->size * sizeof (*opd_sym_map) / 8; |
| 4ce794b7 | 5153 | opd_sym_map = bfd_zalloc (abfd, amt); |
| 1e2f5b6e | 5154 | if (opd_sym_map == NULL) |
| b34976b6 | 5155 | return FALSE; |
| 74f0fb50 | 5156 | ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map; |
| 7c8fe5c4 AM |
5157 | BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal); |
| 5158 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e | 5159 | } |
| 5bd4f169 AM |
5160 | |
| 5161 | rel_end = relocs + sec->reloc_count; | |
| 5162 | for (rel = relocs; rel < rel_end; rel++) | |
| 5163 | { | |
| 5164 | unsigned long r_symndx; | |
| 5165 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5166 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5167 | int tls_type; |
| 7c8fe5c4 | 5168 | struct _ppc64_elf_section_data *ppc64_sec; |
| e054468f | 5169 | struct plt_entry **ifunc; |
| 5bd4f169 AM |
5170 | |
| 5171 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5172 | if (r_symndx < symtab_hdr->sh_info) | |
| 5173 | h = NULL; | |
| 5174 | else | |
| 973a3492 L |
5175 | { |
| 5176 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5177 | h = elf_follow_link (h); |
| 81fbe831 AM |
5178 | |
| 5179 | /* PR15323, ref flags aren't set for references in the same | |
| 5180 | object. */ | |
| 5181 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5182 | |
| 5183 | if (h == htab->elf.hgot) | |
| 5184 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5185 | } |
| 5bd4f169 | 5186 | |
| 727fc41e | 5187 | tls_type = 0; |
| e054468f | 5188 | ifunc = NULL; |
| 25f23106 AM |
5189 | if (h != NULL) |
| 5190 | { | |
| 5191 | if (h->type == STT_GNU_IFUNC) | |
| 5192 | { | |
| 5193 | h->needs_plt = 1; | |
| 5194 | ifunc = &h->plt.plist; | |
| 5195 | } | |
| 5196 | } | |
| 5197 | else | |
| 5198 | { | |
| 5199 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5200 | abfd, r_symndx); | |
| 5201 | if (isym == NULL) | |
| 5202 | return FALSE; | |
| 5203 | ||
| 5204 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5205 | { | |
| 5206 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5207 | rel->r_addend, PLT_IFUNC); | |
| 5208 | if (ifunc == NULL) | |
| 5209 | return FALSE; | |
| 5210 | } | |
| 5211 | } | |
| 4ce794b7 | 5212 | r_type = ELF64_R_TYPE (rel->r_info); |
| e054468f AM |
5213 | if (is_branch_reloc (r_type)) |
| 5214 | { | |
| 5215 | if (h != NULL && (h == tga || h == dottga)) | |
| 5216 | { | |
| 5217 | if (rel != relocs | |
| 5218 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5219 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5220 | /* We have a new-style __tls_get_addr call with a marker | |
| 5221 | reloc. */ | |
| 5222 | ; | |
| 5223 | else | |
| 5224 | /* Mark this section as having an old-style call. */ | |
| 5225 | sec->has_tls_get_addr_call = 1; | |
| 5226 | } | |
| 727fc41e | 5227 | |
| e054468f | 5228 | /* STT_GNU_IFUNC symbols must have a PLT entry. */ |
| e054468f AM |
5229 | if (ifunc != NULL |
| 5230 | && !update_plt_info (abfd, ifunc, rel->r_addend)) | |
| 5231 | return FALSE; | |
| 5232 | } | |
| 727fc41e | 5233 | |
| a33d1f77 | 5234 | switch (r_type) |
| 5bd4f169 | 5235 | { |
| 727fc41e AM |
5236 | case R_PPC64_TLSGD: |
| 5237 | case R_PPC64_TLSLD: | |
| 5238 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5239 | its parameter symbol. */ | |
| 5240 | break; | |
| 5241 | ||
| 411e1bfb AM |
5242 | case R_PPC64_GOT_TLSLD16: |
| 5243 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5244 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5245 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5246 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5247 | goto dogottls; |
| 5248 | ||
| 5249 | case R_PPC64_GOT_TLSGD16: | |
| 5250 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5251 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5252 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5253 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5254 | goto dogottls; |
| 5255 | ||
| 5256 | case R_PPC64_GOT_TPREL16_DS: | |
| 5257 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5258 | case R_PPC64_GOT_TPREL16_HI: | |
| 5259 | case R_PPC64_GOT_TPREL16_HA: | |
| 1d483afe | 5260 | if (!info->executable) |
| 411e1bfb AM |
5261 | info->flags |= DF_STATIC_TLS; |
| 5262 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5263 | goto dogottls; | |
| 5264 | ||
| 5265 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5266 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5267 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5268 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5269 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5270 | dogottls: | |
| 5271 | sec->has_tls_reloc = 1; | |
| 5272 | /* Fall thru */ | |
| 5273 | ||
| 5bd4f169 | 5274 | case R_PPC64_GOT16: |
| 5bd4f169 | 5275 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5276 | case R_PPC64_GOT16_HA: |
| 5277 | case R_PPC64_GOT16_HI: | |
| 5278 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5279 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5280 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5281 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5282 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5283 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5284 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5285 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5286 | || r_type == R_PPC64_GOT16 | |
| 5287 | || r_type == R_PPC64_GOT16_DS) | |
| 5288 | { | |
| 5289 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5290 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5291 | } |
| 5292 | ||
| e717da7e AM |
5293 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5294 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5295 | return FALSE; |
| 5bd4f169 AM |
5296 | |
| 5297 | if (h != NULL) | |
| 5298 | { | |
| 411e1bfb AM |
5299 | struct ppc_link_hash_entry *eh; |
| 5300 | struct got_entry *ent; | |
| 65f38f15 | 5301 | |
| 411e1bfb AM |
5302 | eh = (struct ppc_link_hash_entry *) h; |
| 5303 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5304 | if (ent->addend == rel->r_addend | |
| e717da7e | 5305 | && ent->owner == abfd |
| 411e1bfb AM |
5306 | && ent->tls_type == tls_type) |
| 5307 | break; | |
| 5308 | if (ent == NULL) | |
| 5bd4f169 | 5309 | { |
| 411e1bfb | 5310 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5311 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5312 | if (ent == NULL) |
| b34976b6 | 5313 | return FALSE; |
| 411e1bfb AM |
5314 | ent->next = eh->elf.got.glist; |
| 5315 | ent->addend = rel->r_addend; | |
| e717da7e | 5316 | ent->owner = abfd; |
| 411e1bfb | 5317 | ent->tls_type = tls_type; |
| 927be08e | 5318 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5319 | ent->got.refcount = 0; |
| 5320 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5321 | } |
| 411e1bfb | 5322 | ent->got.refcount += 1; |
| e7b938ca | 5323 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5324 | } |
| 411e1bfb AM |
5325 | else |
| 5326 | /* This is a global offset table entry for a local symbol. */ | |
| 5327 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5328 | rel->r_addend, tls_type)) | |
| 5329 | return FALSE; | |
| 5bd4f169 AM |
5330 | break; |
| 5331 | ||
| 5bd4f169 | 5332 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5333 | case R_PPC64_PLT16_HI: |
| 5334 | case R_PPC64_PLT16_LO: | |
| 5335 | case R_PPC64_PLT32: | |
| 5336 | case R_PPC64_PLT64: | |
| 5bd4f169 | 5337 | /* This symbol requires a procedure linkage table entry. We |
| 3fad3c7c AM |
5338 | actually build the entry in adjust_dynamic_symbol, |
| 5339 | because this might be a case of linking PIC code without | |
| 5340 | linking in any dynamic objects, in which case we don't | |
| 5341 | need to generate a procedure linkage table after all. */ | |
| 5bd4f169 AM |
5342 | if (h == NULL) |
| 5343 | { | |
| 5344 | /* It does not make sense to have a procedure linkage | |
| 3fad3c7c | 5345 | table entry for a local symbol. */ |
| 5bd4f169 | 5346 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 5347 | return FALSE; |
| 5bd4f169 | 5348 | } |
| 411e1bfb | 5349 | else |
| e054468f AM |
5350 | { |
| 5351 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5352 | return FALSE; | |
| 5353 | h->needs_plt = 1; | |
| 5354 | if (h->root.root.string[0] == '.' | |
| 5355 | && h->root.root.string[1] != '\0') | |
| 5356 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5357 | } | |
| 5bd4f169 AM |
5358 | break; |
| 5359 | ||
| 5360 | /* The following relocations don't need to propagate the | |
| 5361 | relocation if linking a shared object since they are | |
| 5362 | section relative. */ | |
| 5363 | case R_PPC64_SECTOFF: | |
| 5364 | case R_PPC64_SECTOFF_LO: | |
| 5365 | case R_PPC64_SECTOFF_HI: | |
| 5366 | case R_PPC64_SECTOFF_HA: | |
| 5367 | case R_PPC64_SECTOFF_DS: | |
| 5368 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5369 | case R_PPC64_DTPREL16: |
| 5370 | case R_PPC64_DTPREL16_LO: | |
| 5371 | case R_PPC64_DTPREL16_HI: | |
| 5372 | case R_PPC64_DTPREL16_HA: | |
| 5373 | case R_PPC64_DTPREL16_DS: | |
| 5374 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5375 | case R_PPC64_DTPREL16_HIGH: |
| 5376 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5377 | case R_PPC64_DTPREL16_HIGHER: |
| 5378 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5379 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5380 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5381 | break; |
| 5382 | ||
| ad8e1ba5 | 5383 | /* Nor do these. */ |
| 25f23106 AM |
5384 | case R_PPC64_REL16: |
| 5385 | case R_PPC64_REL16_LO: | |
| 5386 | case R_PPC64_REL16_HI: | |
| 5387 | case R_PPC64_REL16_HA: | |
| 5388 | break; | |
| 5389 | ||
| ad8e1ba5 | 5390 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5391 | case R_PPC64_TOC16_DS: |
| 5392 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5393 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| ad8e1ba5 AM |
5394 | case R_PPC64_TOC16_LO: |
| 5395 | case R_PPC64_TOC16_HI: | |
| 5396 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5397 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5398 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5399 | break; |
| 5400 | ||
| 5bd4f169 AM |
5401 | /* This relocation describes the C++ object vtable hierarchy. |
| 5402 | Reconstruct it for later use during GC. */ | |
| 5403 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5404 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5405 | return FALSE; |
| 5bd4f169 AM |
5406 | break; |
| 5407 | ||
| 5408 | /* This relocation describes which C++ vtable entries are actually | |
| 5409 | used. Record for later use during GC. */ | |
| 5410 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5411 | BFD_ASSERT (h != NULL); |
| 5412 | if (h != NULL | |
| 5413 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5414 | return FALSE; |
| 5bd4f169 AM |
5415 | break; |
| 5416 | ||
| 721956f4 AM |
5417 | case R_PPC64_REL14: |
| 5418 | case R_PPC64_REL14_BRTAKEN: | |
| 5419 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5420 | { |
| 5421 | asection *dest = NULL; | |
| 5422 | ||
| 5423 | /* Heuristic: If jumping outside our section, chances are | |
| 5424 | we are going to need a stub. */ | |
| 5425 | if (h != NULL) | |
| 5426 | { | |
| 5427 | /* If the sym is weak it may be overridden later, so | |
| 5428 | don't assume we know where a weak sym lives. */ | |
| 5429 | if (h->root.type == bfd_link_hash_defined) | |
| 5430 | dest = h->root.u.def.section; | |
| 5431 | } | |
| 5432 | else | |
| 87d72d41 AM |
5433 | { |
| 5434 | Elf_Internal_Sym *isym; | |
| 5435 | ||
| 5436 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5437 | abfd, r_symndx); | |
| 5438 | if (isym == NULL) | |
| 5439 | return FALSE; | |
| 5440 | ||
| 5441 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5442 | } | |
| 5443 | ||
| 220c76dd | 5444 | if (dest != sec) |
| 7c8fe5c4 | 5445 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5446 | } |
| 721956f4 AM |
5447 | /* Fall through. */ |
| 5448 | ||
| 5d1634d7 | 5449 | case R_PPC64_REL24: |
| e054468f | 5450 | if (h != NULL && ifunc == NULL) |
| 5d1634d7 AM |
5451 | { |
| 5452 | /* We may need a .plt entry if the function this reloc | |
| 5453 | refers to is in a shared lib. */ | |
| e054468f | 5454 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) |
| 411e1bfb | 5455 | return FALSE; |
| e054468f AM |
5456 | h->needs_plt = 1; |
| 5457 | if (h->root.root.string[0] == '.' | |
| 5458 | && h->root.root.string[1] != '\0') | |
| 5459 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 3a71aa26 | 5460 | if (h == tga || h == dottga) |
| 411e1bfb | 5461 | sec->has_tls_reloc = 1; |
| 411e1bfb AM |
5462 | } |
| 5463 | break; | |
| 5464 | ||
| 5465 | case R_PPC64_TPREL64: | |
| 5466 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 1d483afe | 5467 | if (!info->executable) |
| 411e1bfb AM |
5468 | info->flags |= DF_STATIC_TLS; |
| 5469 | goto dotlstoc; | |
| 5470 | ||
| 5471 | case R_PPC64_DTPMOD64: | |
| 5472 | if (rel + 1 < rel_end | |
| 5473 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5474 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5475 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5476 | else |
| 951fd09b | 5477 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5478 | goto dotlstoc; |
| 5479 | ||
| 5480 | case R_PPC64_DTPREL64: | |
| 5481 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5482 | if (rel != relocs | |
| 5483 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5484 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5485 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5486 | Don't mark with TLS_DTPREL. */ | |
| 5487 | goto dodyn; | |
| 5488 | ||
| 5489 | dotlstoc: | |
| 5490 | sec->has_tls_reloc = 1; | |
| 5491 | if (h != NULL) | |
| 5492 | { | |
| 5493 | struct ppc_link_hash_entry *eh; | |
| 5494 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5495 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5496 | } |
| 5497 | else | |
| 5498 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5499 | rel->r_addend, tls_type)) | |
| 5500 | return FALSE; | |
| 5501 | ||
| 7c8fe5c4 AM |
5502 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5503 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5504 | { |
| 3a71aa26 AM |
5505 | bfd_size_type amt; |
| 5506 | ||
| e7b938ca | 5507 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5508 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5509 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5510 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5511 | return FALSE; | |
| 5512 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5513 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5514 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5515 | return FALSE; |
| 7c8fe5c4 AM |
5516 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5517 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5518 | } |
| 5519 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5520 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5521 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5522 | |
| 5523 | /* Mark the second slot of a GD or LD entry. | |
| 5524 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5525 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5526 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5527 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5528 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5529 | goto dodyn; |
| 5530 | ||
| 5531 | case R_PPC64_TPREL16: | |
| 5532 | case R_PPC64_TPREL16_LO: | |
| 5533 | case R_PPC64_TPREL16_HI: | |
| 5534 | case R_PPC64_TPREL16_HA: | |
| 5535 | case R_PPC64_TPREL16_DS: | |
| 5536 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5537 | case R_PPC64_TPREL16_HIGH: |
| 5538 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5539 | case R_PPC64_TPREL16_HIGHER: |
| 5540 | case R_PPC64_TPREL16_HIGHERA: | |
| 5541 | case R_PPC64_TPREL16_HIGHEST: | |
| 5542 | case R_PPC64_TPREL16_HIGHESTA: | |
| 5543 | if (info->shared) | |
| 5544 | { | |
| 1d483afe AM |
5545 | if (!info->executable) |
| 5546 | info->flags |= DF_STATIC_TLS; | |
| 411e1bfb | 5547 | goto dodyn; |
| 5d1634d7 AM |
5548 | } |
| 5549 | break; | |
| 5550 | ||
| e86ce104 | 5551 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5552 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5553 | && rel + 1 < rel_end |
| 4ce794b7 | 5554 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5555 | { |
| 8387904d AM |
5556 | if (h != NULL) |
| 5557 | { | |
| 5558 | if (h->root.root.string[0] == '.' | |
| 5559 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5560 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5561 | ; |
| 5562 | else | |
| 5563 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5564 | } | |
| 5565 | else | |
| 5566 | { | |
| 5567 | asection *s; | |
| 87d72d41 | 5568 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5569 | |
| 87d72d41 AM |
5570 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5571 | abfd, r_symndx); | |
| 5572 | if (isym == NULL) | |
| 8387904d | 5573 | return FALSE; |
| 87d72d41 AM |
5574 | |
| 5575 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5576 | if (s != NULL && s != sec) | |
| 3f764659 | 5577 | opd_sym_map[rel->r_offset / 8] = s; |
| 8387904d | 5578 | } |
| 1e2f5b6e | 5579 | } |
| e86ce104 AM |
5580 | /* Fall through. */ |
| 5581 | ||
| 04c9666a | 5582 | case R_PPC64_REL30: |
| 5bd4f169 | 5583 | case R_PPC64_REL32: |
| 04c9666a | 5584 | case R_PPC64_REL64: |
| 65f38f15 AM |
5585 | case R_PPC64_ADDR14: |
| 5586 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5587 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5588 | case R_PPC64_ADDR16: | |
| 5589 | case R_PPC64_ADDR16_DS: | |
| 5590 | case R_PPC64_ADDR16_HA: | |
| 5591 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5592 | case R_PPC64_ADDR16_HIGH: |
| 5593 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5594 | case R_PPC64_ADDR16_HIGHER: |
| 5595 | case R_PPC64_ADDR16_HIGHERA: | |
| 5596 | case R_PPC64_ADDR16_HIGHEST: | |
| 5597 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5598 | case R_PPC64_ADDR16_LO: | |
| 5599 | case R_PPC64_ADDR16_LO_DS: | |
| 5600 | case R_PPC64_ADDR24: | |
| 65f38f15 | 5601 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5602 | case R_PPC64_UADDR16: |
| 5603 | case R_PPC64_UADDR32: | |
| 5604 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5605 | case R_PPC64_TOC: |
| 81848ca0 AM |
5606 | if (h != NULL && !info->shared) |
| 5607 | /* We may need a copy reloc. */ | |
| f5385ebf | 5608 | h->non_got_ref = 1; |
| 81848ca0 | 5609 | |
| 41bd81ab | 5610 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5611 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5612 | break; |
| e86ce104 | 5613 | |
| 65f38f15 AM |
5614 | /* If we are creating a shared library, and this is a reloc |
| 5615 | against a global symbol, or a non PC relative reloc | |
| 5616 | against a local symbol, then we need to copy the reloc | |
| 5617 | into the shared library. However, if we are linking with | |
| 5618 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5619 | global symbol which is defined in an object we are | |
| 5620 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5621 | this point we have not seen all the input files, so it is | |
| 5622 | possible that DEF_REGULAR is not set now but will be set | |
| 5623 | later (it is never cleared). In case of a weak definition, | |
| 5624 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5625 | a shared library. We account for that possibility below by | |
| f4656909 | 5626 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5627 | table entry. A similar situation occurs when creating |
| 5628 | shared libraries and symbol visibility changes render the | |
| 5629 | symbol local. | |
| 5630 | ||
| 5631 | If on the other hand, we are creating an executable, we | |
| 5632 | may need to keep relocations for symbols satisfied by a | |
| 5633 | dynamic library if we manage to avoid copy relocs for the | |
| 5634 | symbol. */ | |
| 411e1bfb | 5635 | dodyn: |
| 65f38f15 | 5636 | if ((info->shared |
| 1d483afe | 5637 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5638 | || (h != NULL |
| 198f1157 | 5639 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5640 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5641 | || !h->def_regular)))) |
| f4656909 AM |
5642 | || (ELIMINATE_COPY_RELOCS |
| 5643 | && !info->shared | |
| 65f38f15 AM |
5644 | && h != NULL |
| 5645 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 AM |
5646 | || !h->def_regular)) |
| 5647 | || (!info->shared | |
| 5648 | && ifunc != NULL)) | |
| 5bd4f169 | 5649 | { |
| 65f38f15 AM |
5650 | /* We must copy these reloc types into the output file. |
| 5651 | Create a reloc section in dynobj and make room for | |
| 5652 | this reloc. */ | |
| 5bd4f169 AM |
5653 | if (sreloc == NULL) |
| 5654 | { | |
| 83bac4b0 NC |
5655 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5656 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5657 | |
| 5bd4f169 | 5658 | if (sreloc == NULL) |
| 83bac4b0 | 5659 | return FALSE; |
| 5bd4f169 AM |
5660 | } |
| 5661 | ||
| 65f38f15 AM |
5662 | /* If this is a global symbol, we count the number of |
| 5663 | relocations we need for this symbol. */ | |
| 5664 | if (h != NULL) | |
| 5665 | { | |
| 19e08130 AM |
5666 | struct elf_dyn_relocs *p; |
| 5667 | struct elf_dyn_relocs **head; | |
| 5668 | ||
| ec338859 | 5669 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5670 | p = *head; |
| 5671 | if (p == NULL || p->sec != sec) | |
| 5672 | { | |
| 5673 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5674 | if (p == NULL) | |
| 5675 | return FALSE; | |
| 5676 | p->next = *head; | |
| 5677 | *head = p; | |
| 5678 | p->sec = sec; | |
| 5679 | p->count = 0; | |
| 5680 | p->pc_count = 0; | |
| 5681 | } | |
| 5682 | p->count += 1; | |
| 5683 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5684 | p->pc_count += 1; | |
| 65f38f15 AM |
5685 | } |
| 5686 | else | |
| 5687 | { | |
| ec338859 AM |
5688 | /* Track dynamic relocs needed for local syms too. |
| 5689 | We really need local syms available to do this | |
| 5690 | easily. Oh well. */ | |
| 19e08130 AM |
5691 | struct ppc_dyn_relocs *p; |
| 5692 | struct ppc_dyn_relocs **head; | |
| 5693 | bfd_boolean is_ifunc; | |
| ec338859 | 5694 | asection *s; |
| 6edfbbad | 5695 | void *vpp; |
| 87d72d41 | 5696 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5697 | |
| 87d72d41 AM |
5698 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5699 | abfd, r_symndx); | |
| 5700 | if (isym == NULL) | |
| b34976b6 | 5701 | return FALSE; |
| ec338859 | 5702 | |
| 87d72d41 AM |
5703 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5704 | if (s == NULL) | |
| 5705 | s = sec; | |
| 5706 | ||
| 6edfbbad | 5707 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5708 | head = (struct ppc_dyn_relocs **) vpp; |
| 5709 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5710 | p = *head; | |
| 5711 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5712 | p = p->next; | |
| 5713 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5714 | { | |
| 5715 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5716 | if (p == NULL) | |
| 5717 | return FALSE; | |
| 5718 | p->next = *head; | |
| 5719 | *head = p; | |
| 5720 | p->sec = sec; | |
| 5721 | p->ifunc = is_ifunc; | |
| 5722 | p->count = 0; | |
| 5723 | } | |
| 5724 | p->count += 1; | |
| ec338859 | 5725 | } |
| 65f38f15 | 5726 | } |
| 5bd4f169 | 5727 | break; |
| 65f38f15 AM |
5728 | |
| 5729 | default: | |
| 96e0dda4 | 5730 | break; |
| 5bd4f169 AM |
5731 | } |
| 5732 | } | |
| 5733 | ||
| b34976b6 | 5734 | return TRUE; |
| 5bd4f169 AM |
5735 | } |
| 5736 | ||
| ee67d69a AM |
5737 | /* Merge backend specific data from an object file to the output |
| 5738 | object file when linking. */ | |
| 5739 | ||
| 5740 | static bfd_boolean | |
| 5741 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
| 5742 | { | |
| 5743 | unsigned long iflags, oflags; | |
| 5744 | ||
| 5745 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5746 | return TRUE; | |
| 5747 | ||
| 5748 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 5749 | return TRUE; | |
| 5750 | ||
| 5751 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
| 5752 | return FALSE; | |
| 5753 | ||
| 5754 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 5755 | oflags = elf_elfheader (obfd)->e_flags; | |
| 5756 | ||
| 5757 | if (!elf_flags_init (obfd) || oflags == 0) | |
| 5758 | { | |
| 5759 | elf_flags_init (obfd) = TRUE; | |
| 5760 | elf_elfheader (obfd)->e_flags = iflags; | |
| 5761 | } | |
| 5762 | else if (iflags == oflags || iflags == 0) | |
| 5763 | ; | |
| 5764 | else if (iflags & ~EF_PPC64_ABI) | |
| 5765 | { | |
| 5766 | (*_bfd_error_handler) | |
| 5767 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); | |
| 5768 | bfd_set_error (bfd_error_bad_value); | |
| 5769 | return FALSE; | |
| 5770 | } | |
| 5771 | else | |
| 5772 | { | |
| 5773 | (*_bfd_error_handler) | |
| 5774 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), | |
| 5775 | ibfd, iflags, oflags); | |
| 5776 | bfd_set_error (bfd_error_bad_value); | |
| 5777 | return FALSE; | |
| 5778 | } | |
| 5779 | ||
| 5780 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
| 5781 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
| 5782 | ||
| 5783 | return TRUE; | |
| 5784 | } | |
| 5785 | ||
| 5786 | static bfd_boolean | |
| 5787 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 5788 | { | |
| 5789 | /* Print normal ELF private data. */ | |
| 5790 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 5791 | ||
| 5792 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 5793 | { | |
| 5794 | FILE *file = ptr; | |
| 5795 | ||
| 5796 | /* xgettext:c-format */ | |
| 5797 | fprintf (file, _("private flags = 0x%lx:"), | |
| 5798 | elf_elfheader (abfd)->e_flags); | |
| 5799 | ||
| 5800 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 5801 | fprintf (file, _(" [abiv%ld]"), | |
| 5802 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 5803 | fputc ('\n', file); | |
| 5804 | } | |
| 5805 | ||
| 5806 | return TRUE; | |
| 5807 | } | |
| 5808 | ||
| 8387904d AM |
5809 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| 5810 | of the code entry point, and its section. */ | |
| 5811 | ||
| 5812 | static bfd_vma | |
| 5813 | opd_entry_value (asection *opd_sec, | |
| 5814 | bfd_vma offset, | |
| 5815 | asection **code_sec, | |
| aef36ac1 AM |
5816 | bfd_vma *code_off, |
| 5817 | bfd_boolean in_code_sec) | |
| 8387904d AM |
5818 | { |
| 5819 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 5820 | Elf_Internal_Rela *relocs; |
| 8387904d | 5821 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 5822 | bfd_vma val; |
| 8387904d | 5823 | |
| 9f296da3 AM |
5824 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 5825 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
5826 | if (opd_sec->reloc_count == 0) |
| 5827 | { | |
| 729eabd5 | 5828 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 5829 | |
| 729eabd5 AM |
5830 | if (contents == NULL) |
| 5831 | { | |
| 5832 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 5833 | return (bfd_vma) -1; | |
| 5834 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 5835 | } | |
| ee1e4ede | 5836 | |
| 729eabd5 | 5837 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
5838 | if (code_sec != NULL) |
| 5839 | { | |
| 5840 | asection *sec, *likely = NULL; | |
| ee1e4ede | 5841 | |
| aef36ac1 | 5842 | if (in_code_sec) |
| 4b85d634 | 5843 | { |
| aef36ac1 AM |
5844 | sec = *code_sec; |
| 5845 | if (sec->vma <= val | |
| 5846 | && val < sec->vma + sec->size) | |
| 5847 | likely = sec; | |
| 5848 | else | |
| 5849 | val = -1; | |
| 5850 | } | |
| 5851 | else | |
| 5852 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 5853 | if (sec->vma <= val | |
| 5854 | && (sec->flags & SEC_LOAD) != 0 | |
| 5855 | && (sec->flags & SEC_ALLOC) != 0) | |
| 5856 | likely = sec; | |
| 5857 | if (likely != NULL) | |
| 5858 | { | |
| 5859 | *code_sec = likely; | |
| 5860 | if (code_off != NULL) | |
| 5861 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
5862 | } |
| 5863 | } | |
| aef36ac1 | 5864 | return val; |
| 4b85d634 AM |
5865 | } |
| 5866 | ||
| 0c8d6e5c | 5867 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 5868 | |
| 729eabd5 | 5869 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
5870 | if (relocs == NULL) |
| 5871 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 645ea6a9 | 5872 | |
| 8387904d | 5873 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 5874 | lo = relocs; |
| 8387904d AM |
5875 | BFD_ASSERT (lo != NULL); |
| 5876 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ | |
| 645ea6a9 | 5877 | val = (bfd_vma) -1; |
| 8387904d AM |
5878 | while (lo < hi) |
| 5879 | { | |
| 5880 | look = lo + (hi - lo) / 2; | |
| 5881 | if (look->r_offset < offset) | |
| 5882 | lo = look + 1; | |
| 5883 | else if (look->r_offset > offset) | |
| 5884 | hi = look; | |
| 5885 | else | |
| 5886 | { | |
| 0ffa91dd NC |
5887 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 5888 | ||
| 8387904d AM |
5889 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 5890 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 5891 | { | |
| 5892 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| 8387904d AM |
5893 | asection *sec; |
| 5894 | ||
| 62599110 AM |
5895 | if (symndx < symtab_hdr->sh_info |
| 5896 | || elf_sym_hashes (opd_bfd) == NULL) | |
| 8387904d AM |
5897 | { |
| 5898 | Elf_Internal_Sym *sym; | |
| 5899 | ||
| 5900 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 5901 | if (sym == NULL) | |
| 5902 | { | |
| 62599110 AM |
5903 | size_t symcnt = symtab_hdr->sh_info; |
| 5904 | if (elf_sym_hashes (opd_bfd) == NULL) | |
| 5905 | symcnt = symtab_hdr->sh_size / symtab_hdr->sh_entsize; | |
| 5906 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, symcnt, | |
| 8387904d AM |
5907 | 0, NULL, NULL, NULL); |
| 5908 | if (sym == NULL) | |
| 645ea6a9 | 5909 | break; |
| 8387904d AM |
5910 | symtab_hdr->contents = (bfd_byte *) sym; |
| 5911 | } | |
| 5912 | ||
| 5913 | sym += symndx; | |
| 5914 | val = sym->st_value; | |
| cb33740c | 5915 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 8387904d AM |
5916 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); |
| 5917 | } | |
| 5918 | else | |
| 5919 | { | |
| 5920 | struct elf_link_hash_entry **sym_hashes; | |
| 5921 | struct elf_link_hash_entry *rh; | |
| 5922 | ||
| 5923 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 5924 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
5925 | if (rh != NULL) |
| 5926 | { | |
| 5927 | rh = elf_follow_link (rh); | |
| 5928 | BFD_ASSERT (rh->root.type == bfd_link_hash_defined | |
| 5929 | || rh->root.type == bfd_link_hash_defweak); | |
| 5930 | val = rh->root.u.def.value; | |
| 5931 | sec = rh->root.u.def.section; | |
| 5932 | } | |
| 5933 | else | |
| 5934 | { | |
| 5935 | /* Handle the odd case where we can be called | |
| 5936 | during bfd_elf_link_add_symbols before the | |
| 5937 | symbol hashes have been fully populated. */ | |
| 5938 | Elf_Internal_Sym *sym; | |
| 5939 | ||
| 5940 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, 1, | |
| 5941 | symndx, NULL, NULL, NULL); | |
| 5942 | if (sym == NULL) | |
| 5943 | break; | |
| 5944 | ||
| 5945 | val = sym->st_value; | |
| 5946 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); | |
| 5947 | free (sym); | |
| 5948 | } | |
| 8387904d AM |
5949 | } |
| 5950 | val += look->r_addend; | |
| 5951 | if (code_off != NULL) | |
| 5952 | *code_off = val; | |
| 5953 | if (code_sec != NULL) | |
| aef36ac1 AM |
5954 | { |
| 5955 | if (in_code_sec && *code_sec != sec) | |
| 5956 | return -1; | |
| 5957 | else | |
| 5958 | *code_sec = sec; | |
| 5959 | } | |
| 8387904d AM |
5960 | if (sec != NULL && sec->output_section != NULL) |
| 5961 | val += sec->output_section->vma + sec->output_offset; | |
| 8387904d AM |
5962 | } |
| 5963 | break; | |
| 5964 | } | |
| 5965 | } | |
| 645ea6a9 | 5966 | |
| 645ea6a9 | 5967 | return val; |
| 8387904d AM |
5968 | } |
| 5969 | ||
| aef36ac1 AM |
5970 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 5971 | function size and set *CODE_OFF to the function's entry point, | |
| 5972 | otherwise return zero. */ | |
| 9f296da3 | 5973 | |
| aef36ac1 AM |
5974 | static bfd_size_type |
| 5975 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 5976 | bfd_vma *code_off) | |
| 9f296da3 | 5977 | { |
| aef36ac1 AM |
5978 | bfd_size_type size; |
| 5979 | ||
| 5980 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 5981 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 5982 | return 0; | |
| 5983 | ||
| 5984 | size = 0; | |
| 5985 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 5986 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 5987 | ||
| 5988 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 5989 | { |
| aef36ac1 AM |
5990 | if (opd_entry_value (sym->section, sym->value, |
| 5991 | &sec, code_off, TRUE) == (bfd_vma) -1) | |
| 5992 | return 0; | |
| 5993 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 5994 | symbol. This size has nothing to do with the code size of the | |
| 5995 | function, which is what we're supposed to return, but the | |
| 5996 | code size isn't available without looking up the dot-sym. | |
| 5997 | However, doing that would be a waste of time particularly | |
| 5998 | since elf_find_function will look at the dot-sym anyway. | |
| 5999 | Now, elf_find_function will keep the largest size of any | |
| 6000 | function sym found at the code address of interest, so return | |
| 6001 | 1 here to avoid it incorrectly caching a larger function size | |
| 6002 | for a small function. This does mean we return the wrong | |
| 6003 | size for a new-ABI function of size 24, but all that does is | |
| 6004 | disable caching for such functions. */ | |
| 6005 | if (size == 24) | |
| 6006 | size = 1; | |
| 9f296da3 | 6007 | } |
| aef36ac1 AM |
6008 | else |
| 6009 | { | |
| 6010 | if (sym->section != sec) | |
| 6011 | return 0; | |
| 6012 | *code_off = sym->value; | |
| 6013 | } | |
| 6014 | if (size == 0) | |
| 6015 | size = 1; | |
| 6016 | return size; | |
| 9f296da3 AM |
6017 | } |
| 6018 | ||
| 854b41e7 AM |
6019 | /* Return true if symbol is defined in a regular object file. */ |
| 6020 | ||
| 6021 | static bfd_boolean | |
| 6022 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6023 | { | |
| 6024 | return ((h->root.type == bfd_link_hash_defined | |
| 6025 | || h->root.type == bfd_link_hash_defweak) | |
| 6026 | && h->root.u.def.section != NULL | |
| 6027 | && h->root.u.def.section->output_section != NULL); | |
| 6028 | } | |
| 6029 | ||
| b31867b6 AM |
6030 | /* If FDH is a function descriptor symbol, return the associated code |
| 6031 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6032 | ||
| 6033 | static struct ppc_link_hash_entry * | |
| 6034 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6035 | { | |
| 6036 | if (fdh->is_func_descriptor) | |
| 6037 | { | |
| 6038 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6039 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6040 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6041 | return fh; | |
| 6042 | } | |
| 6043 | return NULL; | |
| 6044 | } | |
| 6045 | ||
| 6046 | /* If FH is a function code entry symbol, return the associated | |
| 6047 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6048 | ||
| 6049 | static struct ppc_link_hash_entry * | |
| 6050 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6051 | { | |
| 6052 | if (fh->oh != NULL | |
| 6053 | && fh->oh->is_func_descriptor) | |
| 6054 | { | |
| 6055 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6056 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6057 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6058 | return fdh; | |
| 6059 | } | |
| 6060 | return NULL; | |
| 6061 | } | |
| 6062 | ||
| 74f0fb50 AM |
6063 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6064 | ||
| 6065 | static void | |
| 6066 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6067 | { | |
| 6068 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6069 | struct bfd_sym_chain *sym; | |
| 6070 | ||
| 4dfe6ac6 NC |
6071 | if (htab == NULL) |
| 6072 | return; | |
| 6073 | ||
| 74f0fb50 AM |
6074 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6075 | { | |
| b31867b6 | 6076 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6077 | asection *sec; |
| 6078 | ||
| 6079 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6080 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6081 | if (eh == NULL) |
| 6082 | continue; | |
| 6083 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6084 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6085 | continue; | |
| 6086 | ||
| b31867b6 AM |
6087 | fh = defined_code_entry (eh); |
| 6088 | if (fh != NULL) | |
| 74f0fb50 | 6089 | { |
| b31867b6 | 6090 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6091 | sec->flags |= SEC_KEEP; |
| 6092 | } | |
| 6093 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6094 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6095 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6096 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6097 | sec->flags |= SEC_KEEP; |
| 6098 | ||
| 6099 | sec = eh->elf.root.u.def.section; | |
| 6100 | sec->flags |= SEC_KEEP; | |
| 6101 | } | |
| 6102 | } | |
| 6103 | ||
| 64d03ab5 AM |
6104 | /* Mark sections containing dynamically referenced symbols. When |
| 6105 | building shared libraries, we must assume that any visible symbol is | |
| 6106 | referenced. */ | |
| 6107 | ||
| 6108 | static bfd_boolean | |
| 6109 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6110 | { | |
| 6111 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6112 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6113 | struct ppc_link_hash_entry *fdh; |
| 64d03ab5 | 6114 | |
| 64d03ab5 | 6115 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6116 | fdh = defined_func_desc (eh); |
| 6117 | if (fdh != NULL) | |
| 6118 | eh = fdh; | |
| 64d03ab5 AM |
6119 | |
| 6120 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6121 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6122 | && (eh->elf.ref_dynamic | |
| 6123 | || (!info->executable | |
| 6124 | && eh->elf.def_regular | |
| 6125 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL | |
| 4c58e0d8 AM |
6126 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 6127 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL | |
| 6128 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6129 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6130 | { |
| 6131 | asection *code_sec; | |
| b31867b6 | 6132 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6133 | |
| 6134 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6135 | ||
| 6136 | /* Function descriptor syms cause the associated | |
| 6137 | function code sym section to be marked. */ | |
| b31867b6 AM |
6138 | fh = defined_code_entry (eh); |
| 6139 | if (fh != NULL) | |
| 6140 | { | |
| 6141 | code_sec = fh->elf.root.u.def.section; | |
| 6142 | code_sec->flags |= SEC_KEEP; | |
| 6143 | } | |
| 64d03ab5 AM |
6144 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6145 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6146 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6147 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6148 | code_sec->flags |= SEC_KEEP; |
| 6149 | } | |
| 6150 | ||
| 6151 | return TRUE; | |
| 6152 | } | |
| 6153 | ||
| 5bd4f169 AM |
6154 | /* Return the section that should be marked against GC for a given |
| 6155 | relocation. */ | |
| 6156 | ||
| 6157 | static asection * | |
| 4ce794b7 | 6158 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6159 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6160 | Elf_Internal_Rela *rel, |
| 6161 | struct elf_link_hash_entry *h, | |
| 6162 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6163 | { |
| ccfa59ea AM |
6164 | asection *rsec; |
| 6165 | ||
| ccfa59ea AM |
6166 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6167 | function sections, as all functions are referenced in .opd. */ | |
| 6168 | rsec = NULL; | |
| 6169 | if (get_opd_info (sec) != NULL) | |
| 6170 | return rsec; | |
| 1e2f5b6e | 6171 | |
| 5bd4f169 AM |
6172 | if (h != NULL) |
| 6173 | { | |
| 04c9666a | 6174 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6175 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6176 | |
| 4ce794b7 | 6177 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6178 | switch (r_type) |
| 5bd4f169 AM |
6179 | { |
| 6180 | case R_PPC64_GNU_VTINHERIT: | |
| 6181 | case R_PPC64_GNU_VTENTRY: | |
| 6182 | break; | |
| 6183 | ||
| 6184 | default: | |
| 6185 | switch (h->root.type) | |
| 6186 | { | |
| 6187 | case bfd_link_hash_defined: | |
| 6188 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6189 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6190 | fdh = defined_func_desc (eh); |
| 6191 | if (fdh != NULL) | |
| 6192 | eh = fdh; | |
| 1e2f5b6e AM |
6193 | |
| 6194 | /* Function descriptor syms cause the associated | |
| 6195 | function code sym section to be marked. */ | |
| b31867b6 AM |
6196 | fh = defined_code_entry (eh); |
| 6197 | if (fh != NULL) | |
| ccfa59ea AM |
6198 | { |
| 6199 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6200 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6201 | |
| b31867b6 | 6202 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6203 | } |
| 8387904d AM |
6204 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6205 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6206 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6207 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6208 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6209 | else |
| 1e2f5b6e AM |
6210 | rsec = h->root.u.def.section; |
| 6211 | break; | |
| 5bd4f169 AM |
6212 | |
| 6213 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6214 | rsec = h->root.u.c.p->section; |
| 6215 | break; | |
| 5bd4f169 AM |
6216 | |
| 6217 | default: | |
| fb34365b | 6218 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6219 | } |
| 6220 | } | |
| 6221 | } | |
| 6222 | else | |
| 6223 | { | |
| 74f0fb50 | 6224 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6225 | |
| 6226 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6227 | opd = get_opd_info (rsec); |
| 6228 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6229 | { |
| 74f0fb50 | 6230 | rsec->gc_mark = 1; |
| ccfa59ea | 6231 | |
| 74f0fb50 | 6232 | rsec = opd->func_sec[(sym->st_value + rel->r_addend) / 8]; |
| ccfa59ea | 6233 | } |
| 5bd4f169 AM |
6234 | } |
| 6235 | ||
| 1e2f5b6e | 6236 | return rsec; |
| 5bd4f169 AM |
6237 | } |
| 6238 | ||
| 65f38f15 AM |
6239 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6240 | section being removed. */ | |
| 5bd4f169 | 6241 | |
| b34976b6 | 6242 | static bfd_boolean |
| 4ce794b7 AM |
6243 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6244 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6245 | { |
| 411e1bfb | 6246 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6247 | Elf_Internal_Shdr *symtab_hdr; |
| 6248 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6249 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6250 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6251 | |
| 7dda2462 TG |
6252 | if (info->relocatable) |
| 6253 | return TRUE; | |
| 6254 | ||
| 680a3378 AM |
6255 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6256 | return TRUE; | |
| 6257 | ||
| ec338859 AM |
6258 | elf_section_data (sec)->local_dynrel = NULL; |
| 6259 | ||
| 411e1bfb | 6260 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6261 | if (htab == NULL) |
| 6262 | return FALSE; | |
| 6263 | ||
| 0ffa91dd | 6264 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6265 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6266 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6267 | |
| 6268 | relend = relocs + sec->reloc_count; | |
| 6269 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6270 | { |
| 6271 | unsigned long r_symndx; | |
| 04c9666a | 6272 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6273 | struct elf_link_hash_entry *h = NULL; |
| f961d9dd | 6274 | unsigned char tls_type = 0; |
| 5bd4f169 | 6275 | |
| a33d1f77 | 6276 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6277 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6278 | if (r_symndx >= symtab_hdr->sh_info) |
| 6279 | { | |
| 6280 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6281 | struct elf_dyn_relocs **pp; |
| 6282 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6283 | |
| 6284 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6285 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6286 | eh = (struct ppc_link_hash_entry *) h; |
| 6287 | ||
| 6288 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6289 | if (p->sec == sec) | |
| 6290 | { | |
| 6291 | /* Everything must go for SEC. */ | |
| 6292 | *pp = p->next; | |
| 6293 | break; | |
| 6294 | } | |
| 6295 | } | |
| 6296 | ||
| e054468f AM |
6297 | if (is_branch_reloc (r_type)) |
| 6298 | { | |
| 6299 | struct plt_entry **ifunc = NULL; | |
| 6300 | if (h != NULL) | |
| 6301 | { | |
| 6302 | if (h->type == STT_GNU_IFUNC) | |
| 6303 | ifunc = &h->plt.plist; | |
| 6304 | } | |
| 6305 | else if (local_got_ents != NULL) | |
| 6306 | { | |
| 6307 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6308 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 6309 | unsigned char *local_got_tls_masks = (unsigned char *) |
| e054468f AM |
6310 | (local_plt + symtab_hdr->sh_info); |
| 6311 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6312 | ifunc = local_plt + r_symndx; | |
| 6313 | } | |
| 6314 | if (ifunc != NULL) | |
| 6315 | { | |
| 6316 | struct plt_entry *ent; | |
| 6317 | ||
| 6318 | for (ent = *ifunc; ent != NULL; ent = ent->next) | |
| 6319 | if (ent->addend == rel->r_addend) | |
| 6320 | break; | |
| 6321 | if (ent == NULL) | |
| 6322 | abort (); | |
| 6323 | if (ent->plt.refcount > 0) | |
| 6324 | ent->plt.refcount -= 1; | |
| 6325 | continue; | |
| 6326 | } | |
| 6327 | } | |
| 6328 | ||
| a33d1f77 AM |
6329 | switch (r_type) |
| 6330 | { | |
| 411e1bfb AM |
6331 | case R_PPC64_GOT_TLSLD16: |
| 6332 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6333 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6334 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6335 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6336 | goto dogot; |
| 6337 | ||
| 6338 | case R_PPC64_GOT_TLSGD16: | |
| 6339 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6340 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6341 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6342 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6343 | goto dogot; |
| 6344 | ||
| 6345 | case R_PPC64_GOT_TPREL16_DS: | |
| 6346 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6347 | case R_PPC64_GOT_TPREL16_HI: | |
| 6348 | case R_PPC64_GOT_TPREL16_HA: | |
| 6349 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6350 | goto dogot; | |
| 6351 | ||
| 6352 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6353 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6354 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6355 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6356 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6357 | goto dogot; | |
| 6358 | ||
| a33d1f77 AM |
6359 | case R_PPC64_GOT16: |
| 6360 | case R_PPC64_GOT16_DS: | |
| 6361 | case R_PPC64_GOT16_HA: | |
| 6362 | case R_PPC64_GOT16_HI: | |
| 6363 | case R_PPC64_GOT16_LO: | |
| 6364 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6365 | dogot: |
| 6366 | { | |
| 6367 | struct got_entry *ent; | |
| 6368 | ||
| 58ac9f71 AM |
6369 | if (h != NULL) |
| 6370 | ent = h->got.glist; | |
| 411e1bfb AM |
6371 | else |
| 6372 | ent = local_got_ents[r_symndx]; | |
| 6373 | ||
| 6374 | for (; ent != NULL; ent = ent->next) | |
| 6375 | if (ent->addend == rel->r_addend | |
| e717da7e | 6376 | && ent->owner == abfd |
| 411e1bfb AM |
6377 | && ent->tls_type == tls_type) |
| 6378 | break; | |
| 6379 | if (ent == NULL) | |
| 6380 | abort (); | |
| 6381 | if (ent->got.refcount > 0) | |
| 6382 | ent->got.refcount -= 1; | |
| 6383 | } | |
| a33d1f77 | 6384 | break; |
| 65f38f15 | 6385 | |
| a33d1f77 AM |
6386 | case R_PPC64_PLT16_HA: |
| 6387 | case R_PPC64_PLT16_HI: | |
| 6388 | case R_PPC64_PLT16_LO: | |
| 6389 | case R_PPC64_PLT32: | |
| 6390 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6391 | case R_PPC64_REL14: |
| 6392 | case R_PPC64_REL14_BRNTAKEN: | |
| 6393 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6394 | case R_PPC64_REL24: |
| 58ac9f71 | 6395 | if (h != NULL) |
| 5d1634d7 | 6396 | { |
| 411e1bfb AM |
6397 | struct plt_entry *ent; |
| 6398 | ||
| 411e1bfb AM |
6399 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 6400 | if (ent->addend == rel->r_addend) | |
| 6401 | break; | |
| 7c6c1722 | 6402 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6403 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6404 | } |
| e86ce104 | 6405 | break; |
| 5d1634d7 | 6406 | |
| a33d1f77 AM |
6407 | default: |
| 6408 | break; | |
| 6409 | } | |
| 6410 | } | |
| b34976b6 | 6411 | return TRUE; |
| 5bd4f169 AM |
6412 | } |
| 6413 | ||
| deb0e272 AM |
6414 | /* The maximum size of .sfpr. */ |
| 6415 | #define SFPR_MAX (218*4) | |
| 6416 | ||
| 6417 | struct sfpr_def_parms | |
| 6418 | { | |
| 699733f6 AM |
6419 | const char name[12]; |
| 6420 | unsigned char lo, hi; | |
| deb0e272 AM |
6421 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6422 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6423 | }; | |
| 6424 | ||
| 6425 | /* Auto-generate _save*, _rest* functions in .sfpr. */ | |
| 6426 | ||
| 4dfe6ac6 | 6427 | static bfd_boolean |
| deb0e272 AM |
6428 | sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm) |
| 6429 | { | |
| 6430 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6431 | unsigned int i; | |
| 6432 | size_t len = strlen (parm->name); | |
| 6433 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6434 | char sym[16]; |
| deb0e272 | 6435 | |
| 4dfe6ac6 NC |
6436 | if (htab == NULL) |
| 6437 | return FALSE; | |
| 6438 | ||
| deb0e272 AM |
6439 | memcpy (sym, parm->name, len); |
| 6440 | sym[len + 2] = 0; | |
| 6441 | ||
| 6442 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6443 | { | |
| 6444 | struct elf_link_hash_entry *h; | |
| 6445 | ||
| 6446 | sym[len + 0] = i / 10 + '0'; | |
| 6447 | sym[len + 1] = i % 10 + '0'; | |
| 6448 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
| 6449 | if (h != NULL | |
| f5385ebf | 6450 | && !h->def_regular) |
| deb0e272 AM |
6451 | { |
| 6452 | h->root.type = bfd_link_hash_defined; | |
| 6453 | h->root.u.def.section = htab->sfpr; | |
| 6454 | h->root.u.def.value = htab->sfpr->size; | |
| 6455 | h->type = STT_FUNC; | |
| f5385ebf | 6456 | h->def_regular = 1; |
| deb0e272 AM |
6457 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
| 6458 | writing = TRUE; | |
| 6459 | if (htab->sfpr->contents == NULL) | |
| 6460 | { | |
| 6461 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6462 | if (htab->sfpr->contents == NULL) | |
| 6463 | return FALSE; | |
| 6464 | } | |
| 6465 | } | |
| 6466 | if (writing) | |
| 6467 | { | |
| 6468 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6469 | if (i != parm->hi) | |
| 6470 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6471 | else | |
| 6472 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6473 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6474 | } | |
| 6475 | } | |
| 6476 | ||
| 6477 | return TRUE; | |
| 6478 | } | |
| 6479 | ||
| 6480 | static bfd_byte * | |
| 6481 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6482 | { | |
| 6483 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6484 | return p + 4; | |
| 6485 | } | |
| 6486 | ||
| 6487 | static bfd_byte * | |
| 6488 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6489 | { | |
| 6490 | p = savegpr0 (abfd, p, r); | |
| 6491 | bfd_put_32 (abfd, STD_R0_0R1 + 16, p); | |
| 6492 | p = p + 4; | |
| 6493 | bfd_put_32 (abfd, BLR, p); | |
| 6494 | return p + 4; | |
| 6495 | } | |
| 6496 | ||
| 6497 | static bfd_byte * | |
| 6498 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6499 | { | |
| 6500 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6501 | return p + 4; | |
| 6502 | } | |
| 6503 | ||
| 6504 | static bfd_byte * | |
| 6505 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6506 | { | |
| 6507 | bfd_put_32 (abfd, LD_R0_0R1 + 16, p); | |
| 6508 | p = p + 4; | |
| 6509 | p = restgpr0 (abfd, p, r); | |
| 6510 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6511 | p = p + 4; | |
| 6512 | if (r == 29) | |
| 6513 | { | |
| 6514 | p = restgpr0 (abfd, p, 30); | |
| 6515 | p = restgpr0 (abfd, p, 31); | |
| 6516 | } | |
| 6517 | bfd_put_32 (abfd, BLR, p); | |
| 6518 | return p + 4; | |
| 6519 | } | |
| 6520 | ||
| 6521 | static bfd_byte * | |
| 6522 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6523 | { | |
| 6524 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6525 | return p + 4; | |
| 6526 | } | |
| 6527 | ||
| 6528 | static bfd_byte * | |
| 6529 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6530 | { | |
| 6531 | p = savegpr1 (abfd, p, r); | |
| 6532 | bfd_put_32 (abfd, BLR, p); | |
| 6533 | return p + 4; | |
| 6534 | } | |
| 6535 | ||
| 6536 | static bfd_byte * | |
| 6537 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6538 | { | |
| 6539 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6540 | return p + 4; | |
| 6541 | } | |
| 6542 | ||
| 6543 | static bfd_byte * | |
| 6544 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6545 | { | |
| 6546 | p = restgpr1 (abfd, p, r); | |
| 6547 | bfd_put_32 (abfd, BLR, p); | |
| 6548 | return p + 4; | |
| 6549 | } | |
| 6550 | ||
| 6551 | static bfd_byte * | |
| 6552 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6553 | { | |
| 6554 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6555 | return p + 4; | |
| 6556 | } | |
| 6557 | ||
| 6558 | static bfd_byte * | |
| 6559 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6560 | { | |
| 6561 | p = savefpr (abfd, p, r); | |
| 6562 | bfd_put_32 (abfd, STD_R0_0R1 + 16, p); | |
| 6563 | p = p + 4; | |
| 6564 | bfd_put_32 (abfd, BLR, p); | |
| 6565 | return p + 4; | |
| 6566 | } | |
| 6567 | ||
| 6568 | static bfd_byte * | |
| 6569 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6570 | { | |
| 6571 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6572 | return p + 4; | |
| 6573 | } | |
| 6574 | ||
| 6575 | static bfd_byte * | |
| 6576 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6577 | { | |
| 6578 | bfd_put_32 (abfd, LD_R0_0R1 + 16, p); | |
| 6579 | p = p + 4; | |
| 6580 | p = restfpr (abfd, p, r); | |
| 6581 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6582 | p = p + 4; | |
| 6583 | if (r == 29) | |
| 6584 | { | |
| 6585 | p = restfpr (abfd, p, 30); | |
| 6586 | p = restfpr (abfd, p, 31); | |
| 6587 | } | |
| 6588 | bfd_put_32 (abfd, BLR, p); | |
| 6589 | return p + 4; | |
| 6590 | } | |
| 6591 | ||
| 6592 | static bfd_byte * | |
| 6593 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6594 | { | |
| 6595 | p = savefpr (abfd, p, r); | |
| 6596 | bfd_put_32 (abfd, BLR, p); | |
| 6597 | return p + 4; | |
| 6598 | } | |
| 6599 | ||
| 6600 | static bfd_byte * | |
| 6601 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6602 | { | |
| 6603 | p = restfpr (abfd, p, r); | |
| 6604 | bfd_put_32 (abfd, BLR, p); | |
| 6605 | return p + 4; | |
| 6606 | } | |
| 6607 | ||
| 6608 | static bfd_byte * | |
| 6609 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6610 | { | |
| 6611 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6612 | p = p + 4; | |
| 6613 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6614 | return p + 4; | |
| 6615 | } | |
| 6616 | ||
| 6617 | static bfd_byte * | |
| 6618 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6619 | { | |
| 6620 | p = savevr (abfd, p, r); | |
| 6621 | bfd_put_32 (abfd, BLR, p); | |
| 6622 | return p + 4; | |
| 6623 | } | |
| 6624 | ||
| 6625 | static bfd_byte * | |
| 6626 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6627 | { | |
| 6628 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6629 | p = p + 4; | |
| 6630 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6631 | return p + 4; | |
| 6632 | } | |
| 6633 | ||
| 6634 | static bfd_byte * | |
| 6635 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6636 | { | |
| 6637 | p = restvr (abfd, p, r); | |
| 6638 | bfd_put_32 (abfd, BLR, p); | |
| 6639 | return p + 4; | |
| 6640 | } | |
| 6641 | ||
| e86ce104 AM |
6642 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6643 | information on function code symbol entries to their corresponding | |
| 6644 | function descriptor symbol entries. */ | |
| deb0e272 | 6645 | |
| b34976b6 | 6646 | static bfd_boolean |
| 4ce794b7 | 6647 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6648 | { |
| e86ce104 | 6649 | struct bfd_link_info *info; |
| 65f38f15 | 6650 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6651 | struct plt_entry *ent; |
| 50bc7936 AM |
6652 | struct ppc_link_hash_entry *fh; |
| 6653 | struct ppc_link_hash_entry *fdh; | |
| 6654 | bfd_boolean force_local; | |
| 5bd4f169 | 6655 | |
| 50bc7936 AM |
6656 | fh = (struct ppc_link_hash_entry *) h; |
| 6657 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6658 | return TRUE; |
| e86ce104 | 6659 | |
| 4ce794b7 | 6660 | info = inf; |
| 65f38f15 | 6661 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6662 | if (htab == NULL) |
| 6663 | return FALSE; | |
| 5bd4f169 | 6664 | |
| c09bdfe5 AM |
6665 | /* Resolve undefined references to dot-symbols as the value |
| 6666 | in the function descriptor, if we have one in a regular object. | |
| 6667 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6668 | in dynamic objects are handled elsewhere. */ | |
| 6669 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6670 | && fh->was_undefined | |
| b31867b6 AM |
6671 | && (fdh = defined_func_desc (fh)) != NULL |
| 6672 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6673 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6674 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6675 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6676 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6677 | { |
| b31867b6 | 6678 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6679 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6680 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6681 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6682 | } |
| 6683 | ||
| e86ce104 AM |
6684 | /* If this is a function code symbol, transfer dynamic linking |
| 6685 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6686 | if (!fh->is_func) |
| b34976b6 | 6687 | return TRUE; |
| e86ce104 | 6688 | |
| 50bc7936 | 6689 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6690 | if (ent->plt.refcount > 0) |
| 6691 | break; | |
| 50bc7936 AM |
6692 | if (ent == NULL |
| 6693 | || fh->elf.root.root.string[0] != '.' | |
| 6694 | || fh->elf.root.root.string[1] == '\0') | |
| 6695 | return TRUE; | |
| 5bd4f169 | 6696 | |
| 50bc7936 AM |
6697 | /* Find the corresponding function descriptor symbol. Create it |
| 6698 | as undefined if necessary. */ | |
| 5bd4f169 | 6699 | |
| b31867b6 | 6700 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6701 | if (fdh == NULL |
| df131623 | 6702 | && !info->executable |
| 50bc7936 AM |
6703 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6704 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6705 | { | |
| 908b32fc | 6706 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6707 | if (fdh == NULL) |
| 6708 | return FALSE; | |
| 50bc7936 | 6709 | } |
| 648cca2c | 6710 | |
| 908b32fc | 6711 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6712 | code symbol is strong undefined, make the fake sym the same. |
| 6713 | If the function code symbol is defined, then force the fake | |
| 6714 | descriptor local; We can't support overriding of symbols in a | |
| 6715 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6716 | |
| 6717 | if (fdh != NULL | |
| 6718 | && fdh->fake | |
| 433817dd | 6719 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6720 | { |
| 433817dd AM |
6721 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6722 | { | |
| 6723 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6724 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6725 | } | |
| 6726 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6727 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6728 | { | |
| 6729 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6730 | } | |
| 908b32fc AM |
6731 | } |
| 6732 | ||
| 50bc7936 | 6733 | if (fdh != NULL |
| f5385ebf | 6734 | && !fdh->elf.forced_local |
| df131623 | 6735 | && (!info->executable |
| f5385ebf AM |
6736 | || fdh->elf.def_dynamic |
| 6737 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6738 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6739 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6740 | { | |
| 6741 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 6742 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 6743 | return FALSE; |
| f5385ebf AM |
6744 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6745 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6746 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6747 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 6748 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 6749 | { |
| 40d16e0b | 6750 | move_plt_plist (fh, fdh); |
| f5385ebf | 6751 | fdh->elf.needs_plt = 1; |
| e86ce104 | 6752 | } |
| 50bc7936 | 6753 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
6754 | fdh->oh = fh; |
| 6755 | fh->oh = fdh; | |
| e86ce104 AM |
6756 | } |
| 6757 | ||
| 50bc7936 AM |
6758 | /* Now that the info is on the function descriptor, clear the |
| 6759 | function code sym info. Any function code syms for which we | |
| 6760 | don't have a definition in a regular file, we force local. | |
| 6761 | This prevents a shared library from exporting syms that have | |
| 6762 | been imported from another library. Function code syms that | |
| 6763 | are really in the library we must leave global to prevent the | |
| 6764 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6765 | force_local = (!fh->elf.def_regular |
| 6766 | || fdh == NULL | |
| 6767 | || !fdh->elf.def_regular | |
| 6768 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6769 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6770 | ||
| b34976b6 | 6771 | return TRUE; |
| e86ce104 | 6772 | } |
| 40b8271b | 6773 | |
| e86ce104 | 6774 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6775 | this hook to a) provide some gcc support functions, and b) transfer |
| 6776 | dynamic linking information gathered so far on function code symbol | |
| 6777 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6778 | |
| b34976b6 | 6779 | static bfd_boolean |
| 4ce794b7 AM |
6780 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 6781 | struct bfd_link_info *info) | |
| e86ce104 AM |
6782 | { |
| 6783 | struct ppc_link_hash_table *htab; | |
| 82bd7b59 | 6784 | unsigned int i; |
| 27fc25a1 | 6785 | static const struct sfpr_def_parms funcs[] = |
| deb0e272 AM |
6786 | { |
| 6787 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6788 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6789 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6790 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6791 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6792 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6793 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6794 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6795 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6796 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6797 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6798 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6799 | }; | |
| e86ce104 AM |
6800 | |
| 6801 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6802 | if (htab == NULL) |
| 6803 | return FALSE; | |
| 6804 | ||
| 5295321c AM |
6805 | if (!info->relocatable |
| 6806 | && htab->elf.hgot != NULL) | |
| 6807 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| c66bb0ee | 6808 | |
| 82bd7b59 AM |
6809 | if (htab->sfpr == NULL) |
| 6810 | /* We don't have any relocs. */ | |
| b34976b6 | 6811 | return TRUE; |
| 82bd7b59 | 6812 | |
| deb0e272 AM |
6813 | /* Provide any missing _save* and _rest* functions. */ |
| 6814 | htab->sfpr->size = 0; | |
| 27fc25a1 AM |
6815 | if (!info->relocatable) |
| 6816 | for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++) | |
| 6817 | if (!sfpr_define (info, &funcs[i])) | |
| 6818 | return FALSE; | |
| 82bd7b59 | 6819 | |
| 4ce794b7 | 6820 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 6821 | |
| eea6121a | 6822 | if (htab->sfpr->size == 0) |
| 8423293d | 6823 | htab->sfpr->flags |= SEC_EXCLUDE; |
| 82bd7b59 | 6824 | |
| b34976b6 | 6825 | return TRUE; |
| e86ce104 AM |
6826 | } |
| 6827 | ||
| 6828 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
| 6829 | regular object. The current definition is in some section of the | |
| 6830 | dynamic object, but we're not including those sections. We have to | |
| 6831 | change the definition to something the rest of the link can | |
| 6832 | understand. */ | |
| 6833 | ||
| b34976b6 | 6834 | static bfd_boolean |
| 4ce794b7 AM |
6835 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 6836 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
6837 | { |
| 6838 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 6839 | asection *s; |
| e86ce104 AM |
6840 | |
| 6841 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6842 | if (htab == NULL) |
| 6843 | return FALSE; | |
| e86ce104 AM |
6844 | |
| 6845 | /* Deal with function syms. */ | |
| 6846 | if (h->type == STT_FUNC | |
| e054468f | 6847 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 6848 | || h->needs_plt) |
| e86ce104 AM |
6849 | { |
| 6850 | /* Clear procedure linkage table information for any symbol that | |
| 6851 | won't need a .plt entry. */ | |
| 411e1bfb AM |
6852 | struct plt_entry *ent; |
| 6853 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 6854 | if (ent->plt.refcount > 0) | |
| 6855 | break; | |
| 8387904d | 6856 | if (ent == NULL |
| e054468f AM |
6857 | || (h->type != STT_GNU_IFUNC |
| 6858 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 6859 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 6860 | && h->root.type == bfd_link_hash_undefweak)))) | |
| 40b8271b | 6861 | { |
| 411e1bfb | 6862 | h->plt.plist = NULL; |
| f5385ebf | 6863 | h->needs_plt = 0; |
| 40b8271b | 6864 | } |
| 5bd4f169 | 6865 | } |
| bbd7ec4a | 6866 | else |
| 411e1bfb | 6867 | h->plt.plist = NULL; |
| 5bd4f169 AM |
6868 | |
| 6869 | /* If this is a weak symbol, and there is a real definition, the | |
| 6870 | processor independent code will have arranged for us to see the | |
| 6871 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 6872 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 6873 | { |
| f6e332e6 AM |
6874 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 6875 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 6876 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 6877 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 6878 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 6879 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 6880 | return TRUE; |
| 5bd4f169 AM |
6881 | } |
| 6882 | ||
| 5bd4f169 AM |
6883 | /* If we are creating a shared library, we must presume that the |
| 6884 | only references to the symbol are via the global offset table. | |
| 6885 | For such cases we need not do anything here; the relocations will | |
| 6886 | be handled correctly by relocate_section. */ | |
| 6887 | if (info->shared) | |
| b34976b6 | 6888 | return TRUE; |
| 5bd4f169 | 6889 | |
| 65f38f15 AM |
6890 | /* If there are no references to this symbol that do not use the |
| 6891 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 6892 | if (!h->non_got_ref) |
| b34976b6 | 6893 | return TRUE; |
| 65f38f15 | 6894 | |
| b186458a JJ |
6895 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 6896 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 6897 | return TRUE; | |
| 6898 | ||
| f4656909 | 6899 | if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 | 6900 | { |
| f4656909 | 6901 | struct ppc_link_hash_entry * eh; |
| 6061a67d | 6902 | struct elf_dyn_relocs *p; |
| 65f38f15 | 6903 | |
| f4656909 AM |
6904 | eh = (struct ppc_link_hash_entry *) h; |
| 6905 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 6906 | { | |
| 6907 | s = p->sec->output_section; | |
| 6908 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 6909 | break; | |
| 6910 | } | |
| 6911 | ||
| 6912 | /* If we didn't find any dynamic relocs in read-only sections, then | |
| 6913 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 6914 | if (p == NULL) | |
| 6915 | { | |
| f5385ebf | 6916 | h->non_got_ref = 0; |
| f4656909 AM |
6917 | return TRUE; |
| 6918 | } | |
| 65f38f15 AM |
6919 | } |
| 6920 | ||
| 5d35169e | 6921 | if (h->plt.plist != NULL) |
| 97b639ba AM |
6922 | { |
| 6923 | /* We should never get here, but unfortunately there are versions | |
| 6924 | of gcc out there that improperly (for this ABI) put initialized | |
| 6925 | function pointers, vtable refs and suchlike in read-only | |
| 6926 | sections. Allow them to proceed, but warn that this might | |
| 6927 | break at runtime. */ | |
| 25f53a85 | 6928 | info->callbacks->einfo |
| bc30df16 | 6929 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 6930 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
6931 | h->root.root.string); |
| 6932 | } | |
| 5d35169e AM |
6933 | |
| 6934 | /* This is a reference to a symbol defined by a dynamic object which | |
| 6935 | is not a function. */ | |
| 6936 | ||
| 5bd4f169 AM |
6937 | /* We must allocate the symbol in our .dynbss section, which will |
| 6938 | become part of the .bss section of the executable. There will be | |
| 6939 | an entry for this symbol in the .dynsym section. The dynamic | |
| 6940 | object will contain position independent code, so all references | |
| 6941 | from the dynamic object to this symbol will go through the global | |
| 6942 | offset table. The dynamic linker will use the .dynsym entry to | |
| 6943 | determine the address it must put in the global offset table, so | |
| 6944 | both the dynamic object and the regular object will refer to the | |
| 6945 | same memory location for the variable. */ | |
| 5bd4f169 | 6946 | |
| 04c9666a AM |
6947 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 6948 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
6949 | runtime process image. We need to remember the offset into the |
| 6950 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 6951 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 6952 | { |
| eea6121a | 6953 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 6954 | h->needs_copy = 1; |
| 5bd4f169 AM |
6955 | } |
| 6956 | ||
| 4ce794b7 | 6957 | s = htab->dynbss; |
| 5bd4f169 | 6958 | |
| 027297b7 | 6959 | return _bfd_elf_adjust_dynamic_copy (h, s); |
| 5bd4f169 AM |
6960 | } |
| 6961 | ||
| e86ce104 AM |
6962 | /* If given a function descriptor symbol, hide both the function code |
| 6963 | sym and the descriptor. */ | |
| 6964 | static void | |
| 4ce794b7 AM |
6965 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 6966 | struct elf_link_hash_entry *h, | |
| 6967 | bfd_boolean force_local) | |
| e86ce104 | 6968 | { |
| 34814b9f | 6969 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
6970 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 6971 | ||
| 34814b9f AM |
6972 | eh = (struct ppc_link_hash_entry *) h; |
| 6973 | if (eh->is_func_descriptor) | |
| e86ce104 | 6974 | { |
| 34814b9f | 6975 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 6976 | |
| 721956f4 | 6977 | if (fh == NULL) |
| d1329ca3 AM |
6978 | { |
| 6979 | const char *p, *q; | |
| 6980 | struct ppc_link_hash_table *htab; | |
| 6981 | char save; | |
| 6982 | ||
| 6983 | /* We aren't supposed to use alloca in BFD because on | |
| 6984 | systems which do not have alloca the version in libiberty | |
| 6985 | calls xmalloc, which might cause the program to crash | |
| 6986 | when it runs out of memory. This function doesn't have a | |
| 6987 | return status, so there's no way to gracefully return an | |
| 6988 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
6989 | accessed; It's either a string in an ELF string table, |
| 6990 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 6991 | |
| 34814b9f | 6992 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
6993 | save = *p; |
| 6994 | *(char *) p = '.'; | |
| 6995 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6996 | if (htab == NULL) |
| 6997 | return; | |
| 6998 | ||
| 34814b9f AM |
6999 | fh = (struct ppc_link_hash_entry *) |
| 7000 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7001 | *(char *) p = save; |
| 7002 | ||
| 7003 | /* Unfortunately, if it so happens that the string we were | |
| 7004 | looking for was allocated immediately before this string, | |
| 7005 | then we overwrote the string terminator. That's the only | |
| 7006 | reason the lookup should fail. */ | |
| 7007 | if (fh == NULL) | |
| 7008 | { | |
| 34814b9f AM |
7009 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7010 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7011 | --q, --p; |
| 34814b9f AM |
7012 | if (q < eh->elf.root.root.string && *p == '.') |
| 7013 | fh = (struct ppc_link_hash_entry *) | |
| 7014 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7015 | } |
| 7016 | if (fh != NULL) | |
| 7017 | { | |
| 34814b9f AM |
7018 | eh->oh = fh; |
| 7019 | fh->oh = eh; | |
| d1329ca3 AM |
7020 | } |
| 7021 | } | |
| e86ce104 | 7022 | if (fh != NULL) |
| 34814b9f | 7023 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7024 | } |
| 7025 | } | |
| 7026 | ||
| 411e1bfb | 7027 | static bfd_boolean |
| 8843416a AM |
7028 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7029 | Elf_Internal_Sym **symp, | |
| 7030 | asection **symsecp, | |
| f961d9dd | 7031 | unsigned char **tls_maskp, |
| 8843416a AM |
7032 | Elf_Internal_Sym **locsymsp, |
| 7033 | unsigned long r_symndx, | |
| 7034 | bfd *ibfd) | |
| 411e1bfb | 7035 | { |
| 0ffa91dd | 7036 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7037 | |
| 7038 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7039 | { | |
| 7040 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7041 | struct elf_link_hash_entry *h; | |
| 7042 | ||
| 7043 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7044 | h = elf_follow_link (h); |
| 411e1bfb AM |
7045 | |
| 7046 | if (hp != NULL) | |
| 7047 | *hp = h; | |
| 7048 | ||
| 7049 | if (symp != NULL) | |
| 7050 | *symp = NULL; | |
| 7051 | ||
| 7052 | if (symsecp != NULL) | |
| 7053 | { | |
| 7054 | asection *symsec = NULL; | |
| 7055 | if (h->root.type == bfd_link_hash_defined | |
| 7056 | || h->root.type == bfd_link_hash_defweak) | |
| 7057 | symsec = h->root.u.def.section; | |
| 7058 | *symsecp = symsec; | |
| 7059 | } | |
| 7060 | ||
| e7b938ca | 7061 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7062 | { |
| 7063 | struct ppc_link_hash_entry *eh; | |
| 7064 | ||
| 7065 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7066 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7067 | } |
| 7068 | } | |
| 7069 | else | |
| 7070 | { | |
| 7071 | Elf_Internal_Sym *sym; | |
| 7072 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7073 | ||
| 7074 | if (locsyms == NULL) | |
| 7075 | { | |
| 7076 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7077 | if (locsyms == NULL) | |
| 7078 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7079 | symtab_hdr->sh_info, | |
| 7080 | 0, NULL, NULL, NULL); | |
| 7081 | if (locsyms == NULL) | |
| 7082 | return FALSE; | |
| 7083 | *locsymsp = locsyms; | |
| 7084 | } | |
| 7085 | sym = locsyms + r_symndx; | |
| 7086 | ||
| 7087 | if (hp != NULL) | |
| 7088 | *hp = NULL; | |
| 7089 | ||
| 7090 | if (symp != NULL) | |
| 7091 | *symp = sym; | |
| 7092 | ||
| 7093 | if (symsecp != NULL) | |
| cb33740c | 7094 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7095 | |
| e7b938ca | 7096 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7097 | { |
| 7098 | struct got_entry **lgot_ents; | |
| f961d9dd | 7099 | unsigned char *tls_mask; |
| 411e1bfb | 7100 | |
| e7b938ca | 7101 | tls_mask = NULL; |
| 411e1bfb AM |
7102 | lgot_ents = elf_local_got_ents (ibfd); |
| 7103 | if (lgot_ents != NULL) | |
| 7104 | { | |
| e054468f AM |
7105 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7106 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7107 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7108 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7109 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7110 | } |
| e7b938ca | 7111 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7112 | } |
| 7113 | } | |
| 7114 | return TRUE; | |
| 7115 | } | |
| 7116 | ||
| e7b938ca | 7117 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7118 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7119 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7120 | |
| 7121 | static int | |
| f961d9dd | 7122 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7123 | unsigned long *toc_symndx, |
| 7124 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7125 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7126 | const Elf_Internal_Rela *rel, |
| 7127 | bfd *ibfd) | |
| 411e1bfb AM |
7128 | { |
| 7129 | unsigned long r_symndx; | |
| 0d4792f7 | 7130 | int next_r; |
| 411e1bfb AM |
7131 | struct elf_link_hash_entry *h; |
| 7132 | Elf_Internal_Sym *sym; | |
| 7133 | asection *sec; | |
| 7134 | bfd_vma off; | |
| 7135 | ||
| 7136 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7137 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7138 | return 0; |
| 411e1bfb | 7139 | |
| e7b938ca | 7140 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7141 | || sec == NULL |
| 6bee8834 | 7142 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7143 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7144 | return 1; |
| 411e1bfb AM |
7145 | |
| 7146 | /* Look inside a TOC section too. */ | |
| 7147 | if (h != NULL) | |
| 7148 | { | |
| 7149 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7150 | off = h->root.u.def.value; | |
| 7151 | } | |
| 7152 | else | |
| 7153 | off = sym->st_value; | |
| 7154 | off += rel->r_addend; | |
| 7155 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7156 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7157 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7158 | if (toc_symndx != NULL) |
| 7159 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7160 | if (toc_addend != NULL) |
| 7161 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7162 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7163 | return 0; | |
| 854b41e7 | 7164 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7165 | && (next_r == -1 || next_r == -2)) |
| 7166 | return 1 - next_r; | |
| 951fd09b | 7167 | return 1; |
| 411e1bfb AM |
7168 | } |
| 7169 | ||
| 3b421ab3 AM |
7170 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7171 | ||
| 7172 | static struct tocsave_entry * | |
| 7173 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7174 | enum insert_option insert, | |
| 7175 | Elf_Internal_Sym **local_syms, | |
| 7176 | const Elf_Internal_Rela *irela, | |
| 7177 | bfd *ibfd) | |
| 7178 | { | |
| 7179 | unsigned long r_indx; | |
| 7180 | struct elf_link_hash_entry *h; | |
| 7181 | Elf_Internal_Sym *sym; | |
| 7182 | struct tocsave_entry ent, *p; | |
| 7183 | hashval_t hash; | |
| 7184 | struct tocsave_entry **slot; | |
| 7185 | ||
| 7186 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7187 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7188 | return NULL; | |
| 7189 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7190 | { | |
| 7191 | (*_bfd_error_handler) | |
| 7192 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7193 | return NULL; | |
| 7194 | } | |
| 7195 | ||
| 7196 | if (h != NULL) | |
| 7197 | ent.offset = h->root.u.def.value; | |
| 7198 | else | |
| 7199 | ent.offset = sym->st_value; | |
| 7200 | ent.offset += irela->r_addend; | |
| 7201 | ||
| 7202 | hash = tocsave_htab_hash (&ent); | |
| 7203 | slot = ((struct tocsave_entry **) | |
| 7204 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7205 | if (slot == NULL) | |
| 7206 | return NULL; | |
| 7207 | ||
| 7208 | if (*slot == NULL) | |
| 7209 | { | |
| 7210 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7211 | if (p == NULL) | |
| 7212 | return NULL; | |
| 7213 | *p = ent; | |
| 7214 | *slot = p; | |
| 7215 | } | |
| 7216 | return *slot; | |
| 7217 | } | |
| 7218 | ||
| 754021d0 | 7219 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7220 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7221 | |
| 7222 | static bfd_boolean | |
| 7223 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7224 | { | |
| 7225 | struct ppc_link_hash_entry *eh; | |
| 7226 | asection *sym_sec; | |
| 74f0fb50 | 7227 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7228 | |
| 7229 | if (h->root.type == bfd_link_hash_indirect) | |
| 7230 | return TRUE; | |
| 7231 | ||
| 754021d0 AM |
7232 | if (h->root.type != bfd_link_hash_defined |
| 7233 | && h->root.type != bfd_link_hash_defweak) | |
| 7234 | return TRUE; | |
| 7235 | ||
| 7236 | eh = (struct ppc_link_hash_entry *) h; | |
| 7237 | if (eh->adjust_done) | |
| 7238 | return TRUE; | |
| 7239 | ||
| 7240 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7241 | opd = get_opd_info (sym_sec); |
| 7242 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7243 | { |
| 74f0fb50 | 7244 | long adjust = opd->adjust[eh->elf.root.u.def.value / 8]; |
| 4025353c AM |
7245 | if (adjust == -1) |
| 7246 | { | |
| 7247 | /* This entry has been deleted. */ | |
| b3fac117 | 7248 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7249 | if (dsec == NULL) |
| 7250 | { | |
| 7251 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7252 | if (discarded_section (dsec)) |
| 81688140 | 7253 | { |
| b3fac117 | 7254 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7255 | break; |
| 7256 | } | |
| 7257 | } | |
| 4025353c | 7258 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7259 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7260 | } |
| 7261 | else | |
| 7262 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7263 | eh->adjust_done = 1; |
| 7264 | } | |
| 7265 | return TRUE; | |
| 7266 | } | |
| 7267 | ||
| 8c1d1bb8 | 7268 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7269 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7270 | have already been determined. */ |
| 7271 | ||
| 7272 | static bfd_boolean | |
| 7273 | dec_dynrel_count (bfd_vma r_info, | |
| 7274 | asection *sec, | |
| 7275 | struct bfd_link_info *info, | |
| 7276 | Elf_Internal_Sym **local_syms, | |
| 7277 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7278 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7279 | { |
| 7280 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7281 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7282 | |
| 7283 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7284 | should be kept in sync with the code in check_relocs. */ | |
| 7285 | r_type = ELF64_R_TYPE (r_info); | |
| 7286 | switch (r_type) | |
| 7287 | { | |
| 7288 | default: | |
| 7289 | return TRUE; | |
| 7290 | ||
| 7291 | case R_PPC64_TPREL16: | |
| 7292 | case R_PPC64_TPREL16_LO: | |
| 7293 | case R_PPC64_TPREL16_HI: | |
| 7294 | case R_PPC64_TPREL16_HA: | |
| 7295 | case R_PPC64_TPREL16_DS: | |
| 7296 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7297 | case R_PPC64_TPREL16_HIGH: |
| 7298 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7299 | case R_PPC64_TPREL16_HIGHER: |
| 7300 | case R_PPC64_TPREL16_HIGHERA: | |
| 7301 | case R_PPC64_TPREL16_HIGHEST: | |
| 7302 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7303 | if (!info->shared) | |
| 7304 | return TRUE; | |
| 7305 | ||
| 7306 | case R_PPC64_TPREL64: | |
| 7307 | case R_PPC64_DTPMOD64: | |
| 7308 | case R_PPC64_DTPREL64: | |
| 7309 | case R_PPC64_ADDR64: | |
| 7310 | case R_PPC64_REL30: | |
| 7311 | case R_PPC64_REL32: | |
| 7312 | case R_PPC64_REL64: | |
| 7313 | case R_PPC64_ADDR14: | |
| 7314 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7315 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7316 | case R_PPC64_ADDR16: | |
| 7317 | case R_PPC64_ADDR16_DS: | |
| 7318 | case R_PPC64_ADDR16_HA: | |
| 7319 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7320 | case R_PPC64_ADDR16_HIGH: |
| 7321 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7322 | case R_PPC64_ADDR16_HIGHER: |
| 7323 | case R_PPC64_ADDR16_HIGHERA: | |
| 7324 | case R_PPC64_ADDR16_HIGHEST: | |
| 7325 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7326 | case R_PPC64_ADDR16_LO: | |
| 7327 | case R_PPC64_ADDR16_LO_DS: | |
| 7328 | case R_PPC64_ADDR24: | |
| 7329 | case R_PPC64_ADDR32: | |
| 7330 | case R_PPC64_UADDR16: | |
| 7331 | case R_PPC64_UADDR32: | |
| 7332 | case R_PPC64_UADDR64: | |
| 7333 | case R_PPC64_TOC: | |
| 7334 | break; | |
| 7335 | } | |
| 7336 | ||
| 7337 | if (local_syms != NULL) | |
| 7338 | { | |
| 7339 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7340 | bfd *ibfd = sec->owner; |
| 7341 | ||
| 7342 | r_symndx = ELF64_R_SYM (r_info); | |
| 7343 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7344 | return FALSE; | |
| 7345 | } | |
| 7346 | ||
| 7347 | if ((info->shared | |
| 1d483afe | 7348 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7349 | || (h != NULL |
| 198f1157 | 7350 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7351 | || h->root.type == bfd_link_hash_defweak |
| 7352 | || !h->def_regular)))) | |
| 7353 | || (ELIMINATE_COPY_RELOCS | |
| 7354 | && !info->shared | |
| 7355 | && h != NULL | |
| 7356 | && (h->root.type == bfd_link_hash_defweak | |
| 7357 | || !h->def_regular))) | |
| 7358 | ; | |
| 7359 | else | |
| 7360 | return TRUE; | |
| 7361 | ||
| 7362 | if (h != NULL) | |
| 6edfbbad | 7363 | { |
| 19e08130 AM |
7364 | struct elf_dyn_relocs *p; |
| 7365 | struct elf_dyn_relocs **pp; | |
| 7366 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7367 | ||
| 7368 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7369 | with local syms for a given section. Also, symbol flags are | |
| 7370 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7371 | report a dynreloc miscount. */ | |
| 7372 | if (*pp == NULL && info->gc_sections) | |
| 7373 | return TRUE; | |
| 7374 | ||
| 7375 | while ((p = *pp) != NULL) | |
| 60124e18 | 7376 | { |
| 19e08130 AM |
7377 | if (p->sec == sec) |
| 7378 | { | |
| 7379 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7380 | p->pc_count -= 1; | |
| 7381 | p->count -= 1; | |
| 7382 | if (p->count == 0) | |
| 7383 | *pp = p->next; | |
| 7384 | return TRUE; | |
| 7385 | } | |
| 7386 | pp = &p->next; | |
| 60124e18 | 7387 | } |
| 6edfbbad | 7388 | } |
| 19e08130 AM |
7389 | else |
| 7390 | { | |
| 7391 | struct ppc_dyn_relocs *p; | |
| 7392 | struct ppc_dyn_relocs **pp; | |
| 7393 | void *vpp; | |
| 7394 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7395 | |
| 19e08130 AM |
7396 | if (local_syms == NULL) |
| 7397 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7398 | if (sym_sec == NULL) | |
| 7399 | sym_sec = sec; | |
| c57da1a7 | 7400 | |
| 19e08130 AM |
7401 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7402 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7403 | ||
| 7404 | if (*pp == NULL && info->gc_sections) | |
| 7405 | return TRUE; | |
| 7406 | ||
| 7407 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7408 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7409 | { |
| 19e08130 AM |
7410 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7411 | { | |
| 7412 | p->count -= 1; | |
| 7413 | if (p->count == 0) | |
| 7414 | *pp = p->next; | |
| 7415 | return TRUE; | |
| 7416 | } | |
| 7417 | pp = &p->next; | |
| 8c1d1bb8 | 7418 | } |
| 8c1d1bb8 AM |
7419 | } |
| 7420 | ||
| 8de848d8 | 7421 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7422 | sec->owner, sec); |
| 8c1d1bb8 AM |
7423 | bfd_set_error (bfd_error_bad_value); |
| 7424 | return FALSE; | |
| 7425 | } | |
| 7426 | ||
| 754021d0 AM |
7427 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7428 | only remove those associated with functions in discarded link-once | |
| 7429 | sections, or weakly defined functions that have been overridden. It | |
| 7430 | would be possible to remove many more entries for statically linked | |
| 7431 | applications. */ | |
| 7432 | ||
| b34976b6 | 7433 | bfd_boolean |
| 33c0ec9d | 7434 | ppc64_elf_edit_opd (struct bfd_link_info *info, bfd_boolean non_overlapping) |
| 1e2f5b6e AM |
7435 | { |
| 7436 | bfd *ibfd; | |
| 754021d0 | 7437 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7438 | asection *need_pad = NULL; |
| 1e2f5b6e | 7439 | |
| 411e1bfb | 7440 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 1e2f5b6e AM |
7441 | { |
| 7442 | asection *sec; | |
| 7443 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7444 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7445 | Elf_Internal_Sym *local_syms; |
| 1e2f5b6e | 7446 | bfd_vma offset; |
| 74f0fb50 | 7447 | struct _opd_sec_data *opd; |
| 3f764659 JJ |
7448 | bfd_boolean need_edit, add_aux_fields; |
| 7449 | bfd_size_type cnt_16b = 0; | |
| 1e2f5b6e | 7450 | |
| 854b41e7 AM |
7451 | if (!is_ppc64_elf (ibfd)) |
| 7452 | continue; | |
| 7453 | ||
| 1e2f5b6e | 7454 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7455 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7456 | continue; |
| 7457 | ||
| dbaa2011 | 7458 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7459 | continue; |
| 7460 | ||
| 1e2f5b6e AM |
7461 | if (sec->output_section == bfd_abs_section_ptr) |
| 7462 | continue; | |
| 7463 | ||
| 7464 | /* Look through the section relocs. */ | |
| 7465 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7466 | continue; | |
| 7467 | ||
| 6cdc0ccc | 7468 | local_syms = NULL; |
| 0ffa91dd | 7469 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7470 | |
| 7471 | /* Read the relocations. */ | |
| 4ce794b7 | 7472 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7473 | info->keep_memory); |
| 1e2f5b6e | 7474 | if (relstart == NULL) |
| b34976b6 | 7475 | return FALSE; |
| 1e2f5b6e AM |
7476 | |
| 7477 | /* First run through the relocs to check they are sane, and to | |
| 7478 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7479 | need_edit = FALSE; |
| 3f764659 | 7480 | need_pad = sec; |
| 1e2f5b6e AM |
7481 | offset = 0; |
| 7482 | relend = relstart + sec->reloc_count; | |
| 50bc7936 | 7483 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7484 | { |
| 04c9666a | 7485 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7486 | unsigned long r_symndx; |
| 7487 | asection *sym_sec; | |
| 7488 | struct elf_link_hash_entry *h; | |
| 7489 | Elf_Internal_Sym *sym; | |
| 7490 | ||
| 3f764659 | 7491 | /* .opd contains a regular array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7492 | only interested in the reloc pointing to a function entry |
| 7493 | point. */ | |
| 50bc7936 AM |
7494 | if (rel->r_offset != offset |
| 7495 | || rel + 1 >= relend | |
| 7496 | || (rel + 1)->r_offset != offset + 8) | |
| 1e2f5b6e AM |
7497 | { |
| 7498 | /* If someone messes with .opd alignment then after a | |
| 7499 | "ld -r" we might have padding in the middle of .opd. | |
| 7500 | Also, there's nothing to prevent someone putting | |
| 7501 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7502 | optimization for them! */ |
| 3f764659 | 7503 | broken_opd: |
| 1e2f5b6e | 7504 | (*_bfd_error_handler) |
| d003868e | 7505 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| b34976b6 | 7506 | need_edit = FALSE; |
| 1e2f5b6e AM |
7507 | break; |
| 7508 | } | |
| 7509 | ||
| 50bc7936 AM |
7510 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7511 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7512 | { | |
| 7513 | (*_bfd_error_handler) | |
| d003868e AM |
7514 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7515 | ibfd, r_type); | |
| 50bc7936 AM |
7516 | need_edit = FALSE; |
| 7517 | break; | |
| 7518 | } | |
| 7519 | ||
| 1e2f5b6e | 7520 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7521 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7522 | r_symndx, ibfd)) | |
| 50bc7936 | 7523 | goto error_ret; |
| 1e2f5b6e AM |
7524 | |
| 7525 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7526 | { | |
| 411e1bfb AM |
7527 | const char *sym_name; |
| 7528 | if (h != NULL) | |
| 7529 | sym_name = h->root.root.string; | |
| 7530 | else | |
| 26c61ae5 L |
7531 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7532 | sym_sec); | |
| 411e1bfb | 7533 | |
| 1e2f5b6e | 7534 | (*_bfd_error_handler) |
| d003868e AM |
7535 | (_("%B: undefined sym `%s' in .opd section"), |
| 7536 | ibfd, sym_name); | |
| b34976b6 | 7537 | need_edit = FALSE; |
| 1e2f5b6e AM |
7538 | break; |
| 7539 | } | |
| 7540 | ||
| 51020317 AM |
7541 | /* opd entries are always for functions defined in the |
| 7542 | current input bfd. If the symbol isn't defined in the | |
| 7543 | input bfd, then we won't be using the function in this | |
| 7544 | bfd; It must be defined in a linkonce section in another | |
| 7545 | bfd, or is weak. It's also possible that we are | |
| 7546 | discarding the function due to a linker script /DISCARD/, | |
| 7547 | which we test for via the output_section. */ | |
| 7548 | if (sym_sec->owner != ibfd | |
| 7549 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7550 | need_edit = TRUE; |
| 1e2f5b6e | 7551 | |
| 50bc7936 | 7552 | rel += 2; |
| 3f764659 JJ |
7553 | if (rel == relend |
| 7554 | || (rel + 1 == relend && rel->r_offset == offset + 16)) | |
| 7555 | { | |
| 7556 | if (sec->size == offset + 24) | |
| 7557 | { | |
| 7558 | need_pad = NULL; | |
| 7559 | break; | |
| 7560 | } | |
| 7561 | if (rel == relend && sec->size == offset + 16) | |
| 7562 | { | |
| 7563 | cnt_16b++; | |
| 7564 | break; | |
| 7565 | } | |
| 7566 | goto broken_opd; | |
| 7567 | } | |
| 7568 | ||
| 7569 | if (rel->r_offset == offset + 24) | |
| 7570 | offset += 24; | |
| 7571 | else if (rel->r_offset != offset + 16) | |
| 7572 | goto broken_opd; | |
| 7573 | else if (rel + 1 < relend | |
| 7574 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7575 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7576 | { | |
| 7577 | offset += 16; | |
| 7578 | cnt_16b++; | |
| 7579 | } | |
| 7580 | else if (rel + 2 < relend | |
| 7581 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64 | |
| 7582 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC) | |
| 7583 | { | |
| 7584 | offset += 24; | |
| 7585 | rel += 1; | |
| 7586 | } | |
| 7587 | else | |
| 7588 | goto broken_opd; | |
| 1e2f5b6e AM |
7589 | } |
| 7590 | ||
| 3f764659 JJ |
7591 | add_aux_fields = non_overlapping && cnt_16b > 0; |
| 7592 | ||
| 7593 | if (need_edit || add_aux_fields) | |
| 1e2f5b6e AM |
7594 | { |
| 7595 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7596 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7597 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7598 | bfd_byte *new_contents; |
| b34976b6 | 7599 | bfd_boolean skip; |
| 3f764659 | 7600 | long opd_ent_size; |
| 74f0fb50 AM |
7601 | bfd_size_type amt; |
| 7602 | ||
| 983bddc8 | 7603 | new_contents = NULL; |
| 74f0fb50 AM |
7604 | amt = sec->size * sizeof (long) / 8; |
| 7605 | opd = &ppc64_elf_section_data (sec)->u.opd; | |
| 33c0ec9d | 7606 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7607 | if (opd->adjust == NULL) |
| 7608 | return FALSE; | |
| 7609 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7610 | |
| 7611 | /* This seems a waste of time as input .opd sections are all | |
| 7612 | zeros as generated by gcc, but I suppose there's no reason | |
| 7613 | this will always be so. We might start putting something in | |
| 7614 | the third word of .opd entries. */ | |
| 7615 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7616 | { | |
| eea6121a AM |
7617 | bfd_byte *loc; |
| 7618 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7619 | { |
| eea6121a AM |
7620 | if (loc != NULL) |
| 7621 | free (loc); | |
| 50bc7936 | 7622 | error_ret: |
| 6cdc0ccc AM |
7623 | if (local_syms != NULL |
| 7624 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7625 | free (local_syms); | |
| 6cdc0ccc AM |
7626 | if (elf_section_data (sec)->relocs != relstart) |
| 7627 | free (relstart); | |
| b34976b6 | 7628 | return FALSE; |
| 6cdc0ccc | 7629 | } |
| 1e2f5b6e AM |
7630 | sec->contents = loc; |
| 7631 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7632 | } | |
| 7633 | ||
| 7634 | elf_section_data (sec)->relocs = relstart; | |
| 7635 | ||
| 3f764659 | 7636 | new_contents = sec->contents; |
| 3f764659 JJ |
7637 | if (add_aux_fields) |
| 7638 | { | |
| 7639 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7640 | if (new_contents == NULL) | |
| 7641 | return FALSE; | |
| 7642 | need_pad = FALSE; | |
| 3f764659 | 7643 | } |
| b4f4e59f AM |
7644 | wptr = new_contents; |
| 7645 | rptr = sec->contents; | |
| 3f764659 | 7646 | |
| 1e2f5b6e | 7647 | write_rel = relstart; |
| b34976b6 | 7648 | skip = FALSE; |
| 1e2f5b6e | 7649 | offset = 0; |
| 3f764659 | 7650 | opd_ent_size = 0; |
| 1e2f5b6e AM |
7651 | for (rel = relstart; rel < relend; rel++) |
| 7652 | { | |
| 50bc7936 AM |
7653 | unsigned long r_symndx; |
| 7654 | asection *sym_sec; | |
| 7655 | struct elf_link_hash_entry *h; | |
| 7656 | Elf_Internal_Sym *sym; | |
| 7657 | ||
| 7658 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7659 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7660 | r_symndx, ibfd)) |
| 50bc7936 AM |
7661 | goto error_ret; |
| 7662 | ||
| 1e2f5b6e AM |
7663 | if (rel->r_offset == offset) |
| 7664 | { | |
| 50bc7936 | 7665 | struct ppc_link_hash_entry *fdh = NULL; |
| 3f764659 JJ |
7666 | |
| 7667 | /* See if the .opd entry is full 24 byte or | |
| 7668 | 16 byte (with fd_aux entry overlapped with next | |
| 7669 | fd_func). */ | |
| 7670 | opd_ent_size = 24; | |
| 7671 | if ((rel + 2 == relend && sec->size == offset + 16) | |
| 7672 | || (rel + 3 < relend | |
| 7673 | && rel[2].r_offset == offset + 16 | |
| 7674 | && rel[3].r_offset == offset + 24 | |
| 7675 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64 | |
| 7676 | && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC)) | |
| 7677 | opd_ent_size = 16; | |
| 7678 | ||
| 4025353c AM |
7679 | if (h != NULL |
| 7680 | && h->root.root.string[0] == '.') | |
| c4f68ce3 | 7681 | { |
| 4dfe6ac6 NC |
7682 | struct ppc_link_hash_table *htab; |
| 7683 | ||
| 7684 | htab = ppc_hash_table (info); | |
| 7685 | if (htab != NULL) | |
| 7686 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, | |
| 7687 | htab); | |
| c4f68ce3 AM |
7688 | if (fdh != NULL |
| 7689 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 7690 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 7691 | fdh = NULL; | |
| 7692 | } | |
| 1e2f5b6e | 7693 | |
| 51020317 AM |
7694 | skip = (sym_sec->owner != ibfd |
| 7695 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| a4aa0fb7 AM |
7696 | if (skip) |
| 7697 | { | |
| 4025353c | 7698 | if (fdh != NULL && sym_sec->owner == ibfd) |
| a4aa0fb7 AM |
7699 | { |
| 7700 | /* Arrange for the function descriptor sym | |
| 7701 | to be dropped. */ | |
| d6fe2dc1 AM |
7702 | fdh->elf.root.u.def.value = 0; |
| 7703 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 7704 | } |
| 74f0fb50 | 7705 | opd->adjust[rel->r_offset / 8] = -1; |
| a4aa0fb7 AM |
7706 | } |
| 7707 | else | |
| 1e2f5b6e AM |
7708 | { |
| 7709 | /* We'll be keeping this opd entry. */ | |
| 7710 | ||
| 4025353c | 7711 | if (fdh != NULL) |
| 1e2f5b6e | 7712 | { |
| 754021d0 AM |
7713 | /* Redefine the function descriptor symbol to |
| 7714 | this location in the opd section. It is | |
| 7715 | necessary to update the value here rather | |
| 7716 | than using an array of adjustments as we do | |
| 7717 | for local symbols, because various places | |
| 7718 | in the generic ELF code use the value | |
| 7719 | stored in u.def.value. */ | |
| 3f764659 | 7720 | fdh->elf.root.u.def.value = wptr - new_contents; |
| 754021d0 | 7721 | fdh->adjust_done = 1; |
| 1e2f5b6e | 7722 | } |
| 754021d0 AM |
7723 | |
| 7724 | /* Local syms are a bit tricky. We could | |
| 7725 | tweak them as they can be cached, but | |
| 7726 | we'd need to look through the local syms | |
| 7727 | for the function descriptor sym which we | |
| 7728 | don't have at the moment. So keep an | |
| 7729 | array of adjustments. */ | |
| 74f0fb50 | 7730 | opd->adjust[rel->r_offset / 8] |
| 3f764659 | 7731 | = (wptr - new_contents) - (rptr - sec->contents); |
| 1e2f5b6e AM |
7732 | |
| 7733 | if (wptr != rptr) | |
| 3f764659 JJ |
7734 | memcpy (wptr, rptr, opd_ent_size); |
| 7735 | wptr += opd_ent_size; | |
| 7736 | if (add_aux_fields && opd_ent_size == 16) | |
| 7737 | { | |
| 7738 | memset (wptr, '\0', 8); | |
| 7739 | wptr += 8; | |
| 7740 | } | |
| 1e2f5b6e | 7741 | } |
| 3f764659 JJ |
7742 | rptr += opd_ent_size; |
| 7743 | offset += opd_ent_size; | |
| 1e2f5b6e AM |
7744 | } |
| 7745 | ||
| 50bc7936 AM |
7746 | if (skip) |
| 7747 | { | |
| 60124e18 AM |
7748 | if (!NO_OPD_RELOCS |
| 7749 | && !info->relocatable | |
| 18d944df | 7750 | && !dec_dynrel_count (rel->r_info, sec, info, |
| 19e08130 | 7751 | NULL, h, sym)) |
| 8c1d1bb8 | 7752 | goto error_ret; |
| 50bc7936 AM |
7753 | } |
| 7754 | else | |
| 1e2f5b6e | 7755 | { |
| 50bc7936 AM |
7756 | /* We need to adjust any reloc offsets to point to the |
| 7757 | new opd entries. While we're at it, we may as well | |
| 7758 | remove redundant relocs. */ | |
| 74f0fb50 | 7759 | rel->r_offset += opd->adjust[(offset - opd_ent_size) / 8]; |
| 1e2f5b6e AM |
7760 | if (write_rel != rel) |
| 7761 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 7762 | ++write_rel; | |
| 7763 | } | |
| 7764 | } | |
| 7765 | ||
| 3f764659 | 7766 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 7767 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
7768 | if (add_aux_fields) |
| 7769 | { | |
| 7770 | free (sec->contents); | |
| 7771 | sec->contents = new_contents; | |
| 7772 | } | |
| 7773 | ||
| 05bf9422 | 7774 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 7775 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
7776 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 7777 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 7778 | some_edited = TRUE; |
| 1e2f5b6e | 7779 | } |
| 6cdc0ccc | 7780 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 7781 | free (relstart); |
| 6cdc0ccc | 7782 | |
| 411e1bfb AM |
7783 | if (local_syms != NULL |
| 7784 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7785 | { | |
| 7786 | if (!info->keep_memory) | |
| 7787 | free (local_syms); | |
| 7788 | else | |
| 7789 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 7790 | } | |
| 7791 | } | |
| 7792 | ||
| 754021d0 AM |
7793 | if (some_edited) |
| 7794 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 7795 | ||
| 3f764659 JJ |
7796 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 7797 | long, add a 8 byte padding after it. */ | |
| 7798 | if (need_pad != NULL && !info->relocatable) | |
| 7799 | { | |
| 7800 | bfd_byte *p; | |
| 7801 | ||
| 7802 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 7803 | { | |
| 7804 | BFD_ASSERT (need_pad->size > 0); | |
| 7805 | ||
| 7806 | p = bfd_malloc (need_pad->size + 8); | |
| 7807 | if (p == NULL) | |
| 7808 | return FALSE; | |
| 699733f6 | 7809 | |
| 3f764659 JJ |
7810 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 7811 | p, 0, need_pad->size)) | |
| 7812 | return FALSE; | |
| 7813 | ||
| 7814 | need_pad->contents = p; | |
| 7815 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7816 | } | |
| 7817 | else | |
| 7818 | { | |
| 7819 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 7820 | if (p == NULL) | |
| 7821 | return FALSE; | |
| 7822 | ||
| 7823 | need_pad->contents = p; | |
| 7824 | } | |
| 7825 | ||
| 7826 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 7827 | need_pad->size += 8; | |
| 7828 | } | |
| 7829 | ||
| 411e1bfb AM |
7830 | return TRUE; |
| 7831 | } | |
| 7832 | ||
| e1918d23 | 7833 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 7834 | |
| e1918d23 | 7835 | asection * |
| 33c0ec9d AM |
7836 | ppc64_elf_tls_setup (struct bfd_link_info *info, |
| 7837 | int no_tls_get_addr_opt, | |
| 7838 | int *no_multi_toc) | |
| 411e1bfb | 7839 | { |
| 411e1bfb AM |
7840 | struct ppc_link_hash_table *htab; |
| 7841 | ||
| 411e1bfb | 7842 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
7843 | if (htab == NULL) |
| 7844 | return NULL; | |
| 7845 | ||
| ee67d69a AM |
7846 | if (abiversion (info->output_bfd) == 1) |
| 7847 | htab->opd_abi = 1; | |
| 7848 | ||
| 33c0ec9d AM |
7849 | if (*no_multi_toc) |
| 7850 | htab->do_multi_toc = 0; | |
| 7851 | else if (!htab->do_multi_toc) | |
| 7852 | *no_multi_toc = 1; | |
| 7853 | ||
| 3a71aa26 AM |
7854 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 7855 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 7856 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
7857 | /* Move dynamic linking info to the function descriptor sym. */ |
| 7858 | if (htab->tls_get_addr != NULL) | |
| 7859 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
7860 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 7861 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 7862 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
7863 | if (!no_tls_get_addr_opt) |
| 7864 | { | |
| 7865 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 7866 | ||
| 7867 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 7868 | FALSE, FALSE, TRUE); | |
| 7869 | if (opt != NULL) | |
| 7870 | func_desc_adjust (opt, info); | |
| 7871 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 7872 | FALSE, FALSE, TRUE); | |
| 7873 | if (opt_fd != NULL | |
| 7874 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 7875 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 7876 | { | |
| 7877 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 7878 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 7879 | be calling __tls_get_addr via a plt call stub, then | |
| 7880 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 7881 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 7882 | if (htab->elf.dynamic_sections_created | |
| 7883 | && tga_fd != NULL | |
| 7884 | && (tga_fd->type == STT_FUNC | |
| 7885 | || tga_fd->needs_plt) | |
| 7886 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 7887 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 7888 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 7889 | { | |
| 7890 | struct plt_entry *ent; | |
| 7891 | ||
| 7892 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 7893 | if (ent->plt.refcount > 0) | |
| 7894 | break; | |
| 7895 | if (ent != NULL) | |
| 7896 | { | |
| 7897 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 7898 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 7899 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 7900 | if (opt_fd->dynindx != -1) | |
| 7901 | { | |
| 7902 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 7903 | opt_fd->dynindx = -1; | |
| 7904 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 7905 | opt_fd->dynstr_index); | |
| 7906 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 7907 | return NULL; |
| a7f2871e AM |
7908 | } |
| 7909 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 7910 | tga = &htab->tls_get_addr->elf; | |
| 7911 | if (opt != NULL && tga != NULL) | |
| 7912 | { | |
| 7913 | tga->root.type = bfd_link_hash_indirect; | |
| 7914 | tga->root.u.i.link = &opt->root; | |
| 7915 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 7916 | _bfd_elf_link_hash_hide_symbol (info, opt, | |
| 7917 | tga->forced_local); | |
| 7918 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 7919 | } | |
| 7920 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 7921 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 7922 | if (htab->tls_get_addr != NULL) | |
| 7923 | { | |
| 7924 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 7925 | htab->tls_get_addr->is_func = 1; | |
| 7926 | } | |
| 7927 | } | |
| 7928 | } | |
| 7929 | } | |
| 7930 | else | |
| 7931 | no_tls_get_addr_opt = TRUE; | |
| 7932 | } | |
| 7933 | htab->no_tls_get_addr_opt = no_tls_get_addr_opt; | |
| 33c0ec9d | 7934 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 7935 | } |
| 8387904d | 7936 | |
| 3a71aa26 AM |
7937 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 7938 | HASH1 or HASH2. */ | |
| 8387904d | 7939 | |
| 3a71aa26 AM |
7940 | static bfd_boolean |
| 7941 | branch_reloc_hash_match (const bfd *ibfd, | |
| 7942 | const Elf_Internal_Rela *rel, | |
| 7943 | const struct ppc_link_hash_entry *hash1, | |
| 7944 | const struct ppc_link_hash_entry *hash2) | |
| 7945 | { | |
| 7946 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 7947 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 7948 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7949 | ||
| e054468f | 7950 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 7951 | { |
| 3a71aa26 AM |
7952 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 7953 | struct elf_link_hash_entry *h; | |
| 8387904d | 7954 | |
| 3a71aa26 | 7955 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 7956 | h = elf_follow_link (h); |
| 3a71aa26 AM |
7957 | if (h == &hash1->elf || h == &hash2->elf) |
| 7958 | return TRUE; | |
| a48ebf4d | 7959 | } |
| 3a71aa26 | 7960 | return FALSE; |
| 951fd09b | 7961 | } |
| 411e1bfb | 7962 | |
| 951fd09b AM |
7963 | /* Run through all the TLS relocs looking for optimization |
| 7964 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 7965 | a preliminary section layout so that we know the TLS segment | |
| 7966 | offsets. We can't optimize earlier because some optimizations need | |
| 7967 | to know the tp offset, and we need to optimize before allocating | |
| 7968 | dynamic relocations. */ | |
| 7969 | ||
| 7970 | bfd_boolean | |
| 33c0ec9d | 7971 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
7972 | { |
| 7973 | bfd *ibfd; | |
| 7974 | asection *sec; | |
| 7975 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 7976 | unsigned char *toc_ref; |
| 102890f0 | 7977 | int pass; |
| 951fd09b | 7978 | |
| 1d483afe | 7979 | if (info->relocatable || !info->executable) |
| 411e1bfb AM |
7980 | return TRUE; |
| 7981 | ||
| 951fd09b | 7982 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
7983 | if (htab == NULL) |
| 7984 | return FALSE; | |
| 7985 | ||
| 663a1470 AM |
7986 | /* Make two passes over the relocs. On the first pass, mark toc |
| 7987 | entries involved with tls relocs, and check that tls relocs | |
| 7988 | involved in setting up a tls_get_addr call are indeed followed by | |
| 7989 | such a call. If they are not, we can't do any tls optimization. | |
| 7990 | On the second pass twiddle tls_mask flags to notify | |
| 7991 | relocate_section that optimization can be done, and adjust got | |
| 7992 | and plt refcounts. */ | |
| 7993 | toc_ref = NULL; | |
| 7994 | for (pass = 0; pass < 2; ++pass) | |
| 7995 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 7996 | { | |
| 7997 | Elf_Internal_Sym *locsyms = NULL; | |
| 7998 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 7999 | ||
| 102890f0 AM |
8000 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8001 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8002 | { | |
| 8003 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8004 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8005 | |
| 102890f0 AM |
8006 | /* Read the relocations. */ |
| 8007 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8008 | info->keep_memory); | |
| 8009 | if (relstart == NULL) | |
| 8010 | return FALSE; | |
| 411e1bfb | 8011 | |
| 102890f0 AM |
8012 | relend = relstart + sec->reloc_count; |
| 8013 | for (rel = relstart; rel < relend; rel++) | |
| 8014 | { | |
| 8015 | enum elf_ppc64_reloc_type r_type; | |
| 8016 | unsigned long r_symndx; | |
| 8017 | struct elf_link_hash_entry *h; | |
| 8018 | Elf_Internal_Sym *sym; | |
| 8019 | asection *sym_sec; | |
| f961d9dd AM |
8020 | unsigned char *tls_mask; |
| 8021 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8022 | bfd_vma value; |
| 8023 | bfd_boolean ok_tprel, is_local; | |
| 8024 | long toc_ref_index = 0; | |
| 8025 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8026 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8027 | |
| 102890f0 AM |
8028 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8029 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8030 | r_symndx, ibfd)) | |
| 8031 | { | |
| 8032 | err_free_rel: | |
| 8033 | if (elf_section_data (sec)->relocs != relstart) | |
| 8034 | free (relstart); | |
| 8035 | if (toc_ref != NULL) | |
| 8036 | free (toc_ref); | |
| 8037 | if (locsyms != NULL | |
| 0ffa91dd | 8038 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8039 | != (unsigned char *) locsyms)) |
| 8040 | free (locsyms); | |
| 663a1470 | 8041 | return ret; |
| 102890f0 | 8042 | } |
| 411e1bfb | 8043 | |
| 102890f0 AM |
8044 | if (h != NULL) |
| 8045 | { | |
| 766bc656 AM |
8046 | if (h->root.type == bfd_link_hash_defined |
| 8047 | || h->root.type == bfd_link_hash_defweak) | |
| 8048 | value = h->root.u.def.value; | |
| 8049 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8050 | value = 0; | |
| 8051 | else | |
| 663a1470 AM |
8052 | { |
| 8053 | found_tls_get_addr_arg = 0; | |
| 8054 | continue; | |
| 8055 | } | |
| 102890f0 AM |
8056 | } |
| 8057 | else | |
| 8058 | /* Symbols referenced by TLS relocs must be of type | |
| 8059 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8060 | value = sym->st_value; | |
| 8061 | ||
| 8062 | ok_tprel = FALSE; | |
| 8063 | is_local = FALSE; | |
| 8064 | if (h == NULL | |
| 8065 | || !h->def_dynamic) | |
| 8066 | { | |
| 8067 | is_local = TRUE; | |
| 766bc656 AM |
8068 | if (h != NULL |
| 8069 | && h->root.type == bfd_link_hash_undefweak) | |
| 8070 | ok_tprel = TRUE; | |
| 8071 | else | |
| 8072 | { | |
| 8073 | value += sym_sec->output_offset; | |
| 8074 | value += sym_sec->output_section->vma; | |
| 8075 | value -= htab->elf.tls_sec->vma; | |
| 8076 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8077 | < (bfd_vma) 1 << 32); | |
| 8078 | } | |
| 102890f0 | 8079 | } |
| 951fd09b | 8080 | |
| 102890f0 | 8081 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8082 | /* If this section has old-style __tls_get_addr calls |
| 8083 | without marker relocs, then check that each | |
| 8084 | __tls_get_addr call reloc is preceded by a reloc | |
| 8085 | that conceivably belongs to the __tls_get_addr arg | |
| 8086 | setup insn. If we don't find matching arg setup | |
| 8087 | relocs, don't do any tls optimization. */ | |
| 8088 | if (pass == 0 | |
| 8089 | && sec->has_tls_get_addr_call | |
| 8090 | && h != NULL | |
| 8091 | && (h == &htab->tls_get_addr->elf | |
| 8092 | || h == &htab->tls_get_addr_fd->elf) | |
| 8093 | && !found_tls_get_addr_arg | |
| 8094 | && is_branch_reloc (r_type)) | |
| 8095 | { | |
| 25f53a85 | 8096 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8097 | "TLS optimization disabled\n"), |
| 8098 | ibfd, sec, rel->r_offset); | |
| 8099 | ret = TRUE; | |
| 8100 | goto err_free_rel; | |
| 8101 | } | |
| 8102 | ||
| 8103 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8104 | switch (r_type) |
| 8105 | { | |
| 8106 | case R_PPC64_GOT_TLSLD16: | |
| 8107 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8108 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8109 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8110 | /* Fall thru */ |
| 8111 | ||
| 8112 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8113 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8114 | /* These relocs should never be against a symbol | |
| 8115 | defined in a shared lib. Leave them alone if | |
| 8116 | that turns out to be the case. */ | |
| 8117 | if (!is_local) | |
| 8118 | continue; | |
| 411e1bfb | 8119 | |
| 102890f0 | 8120 | /* LD -> LE */ |
| 411e1bfb | 8121 | tls_set = 0; |
| 102890f0 AM |
8122 | tls_clear = TLS_LD; |
| 8123 | tls_type = TLS_TLS | TLS_LD; | |
| 8124 | break; | |
| 411e1bfb | 8125 | |
| 102890f0 AM |
8126 | case R_PPC64_GOT_TLSGD16: |
| 8127 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8128 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8129 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8130 | /* Fall thru */ |
| 8131 | ||
| 8132 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8133 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8134 | if (ok_tprel) | |
| 8135 | /* GD -> LE */ | |
| 411e1bfb | 8136 | tls_set = 0; |
| 102890f0 AM |
8137 | else |
| 8138 | /* GD -> IE */ | |
| 8139 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8140 | tls_clear = TLS_GD; | |
| 8141 | tls_type = TLS_TLS | TLS_GD; | |
| 8142 | break; | |
| 8143 | ||
| 8144 | case R_PPC64_GOT_TPREL16_DS: | |
| 8145 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8146 | case R_PPC64_GOT_TPREL16_HI: | |
| 8147 | case R_PPC64_GOT_TPREL16_HA: | |
| 8148 | if (ok_tprel) | |
| 8149 | { | |
| 8150 | /* IE -> LE */ | |
| 8151 | tls_set = 0; | |
| 8152 | tls_clear = TLS_TPREL; | |
| 8153 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8154 | break; | |
| 8155 | } | |
| 411e1bfb AM |
8156 | continue; |
| 8157 | ||
| 727fc41e AM |
8158 | case R_PPC64_TLSGD: |
| 8159 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8160 | found_tls_get_addr_arg = 1; |
| 8161 | /* Fall thru */ | |
| 8162 | ||
| 8163 | case R_PPC64_TLS: | |
| 8164 | case R_PPC64_TOC16: | |
| 8165 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8166 | if (sym_sec == NULL || sym_sec != toc) |
| 8167 | continue; | |
| 8168 | ||
| 8169 | /* Mark this toc entry as referenced by a TLS | |
| 8170 | code sequence. We can do that now in the | |
| 8171 | case of R_PPC64_TLS, and after checking for | |
| 8172 | tls_get_addr for the TOC16 relocs. */ | |
| 8173 | if (toc_ref == NULL) | |
| 663a1470 AM |
8174 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8175 | if (toc_ref == NULL) | |
| 8176 | goto err_free_rel; | |
| 8177 | ||
| 102890f0 AM |
8178 | if (h != NULL) |
| 8179 | value = h->root.u.def.value; | |
| 8180 | else | |
| 8181 | value = sym->st_value; | |
| 8182 | value += rel->r_addend; | |
| 8183 | BFD_ASSERT (value < toc->size && value % 8 == 0); | |
| 663a1470 | 8184 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8185 | if (r_type == R_PPC64_TLS |
| 8186 | || r_type == R_PPC64_TLSGD | |
| 8187 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8188 | { |
| 8189 | toc_ref[toc_ref_index] = 1; | |
| 8190 | continue; | |
| 8191 | } | |
| 8192 | ||
| 8193 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8194 | continue; | |
| 8195 | ||
| 8196 | tls_set = 0; | |
| 8197 | tls_clear = 0; | |
| 8198 | expecting_tls_get_addr = 2; | |
| 8199 | break; | |
| 8200 | ||
| 8201 | case R_PPC64_TPREL64: | |
| 8202 | if (pass == 0 | |
| 8203 | || sec != toc | |
| 8204 | || toc_ref == NULL | |
| 663a1470 | 8205 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8206 | continue; |
| 8207 | if (ok_tprel) | |
| 8208 | { | |
| 8209 | /* IE -> LE */ | |
| 8210 | tls_set = TLS_EXPLICIT; | |
| 8211 | tls_clear = TLS_TPREL; | |
| 8212 | break; | |
| 8213 | } | |
| 8214 | continue; | |
| 8215 | ||
| 8216 | case R_PPC64_DTPMOD64: | |
| 8217 | if (pass == 0 | |
| 8218 | || sec != toc | |
| 8219 | || toc_ref == NULL | |
| 663a1470 | 8220 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8221 | continue; |
| 8222 | if (rel + 1 < relend | |
| 8223 | && (rel[1].r_info | |
| 8224 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8225 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8226 | { | |
| 8227 | if (ok_tprel) | |
| 8228 | /* GD -> LE */ | |
| 8229 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8230 | else | |
| 8231 | /* GD -> IE */ | |
| 8232 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8233 | tls_clear = TLS_GD; | |
| 8234 | } | |
| 8235 | else | |
| 8236 | { | |
| 8237 | if (!is_local) | |
| 8238 | continue; | |
| 8239 | ||
| 8240 | /* LD -> LE */ | |
| 8241 | tls_set = TLS_EXPLICIT; | |
| 8242 | tls_clear = TLS_LD; | |
| 8243 | } | |
| 8244 | break; | |
| 8245 | ||
| 8246 | default: | |
| 8247 | continue; | |
| 8248 | } | |
| 8249 | ||
| 8250 | if (pass == 0) | |
| 8251 | { | |
| 727fc41e AM |
8252 | if (!expecting_tls_get_addr |
| 8253 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8254 | continue; |
| 8255 | ||
| 3a71aa26 AM |
8256 | if (rel + 1 < relend |
| 8257 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8258 | htab->tls_get_addr, | |
| 8259 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8260 | { |
| 3a71aa26 | 8261 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8262 | { |
| 3a71aa26 | 8263 | /* Check for toc tls entries. */ |
| f961d9dd | 8264 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8265 | int retval; |
| 8266 | ||
| 8267 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8268 | &locsyms, | |
| 8269 | rel, ibfd); | |
| 8270 | if (retval == 0) | |
| 8271 | goto err_free_rel; | |
| 663a1470 AM |
8272 | if (toc_tls != NULL) |
| 8273 | { | |
| 8274 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8275 | found_tls_get_addr_arg = 1; | |
| 8276 | if (retval > 1) | |
| 8277 | toc_ref[toc_ref_index] = 1; | |
| 8278 | } | |
| 102890f0 | 8279 | } |
| 3a71aa26 | 8280 | continue; |
| 102890f0 AM |
8281 | } |
| 8282 | ||
| 8283 | if (expecting_tls_get_addr != 1) | |
| 8284 | continue; | |
| 8285 | ||
| 8286 | /* Uh oh, we didn't find the expected call. We | |
| 8287 | could just mark this symbol to exclude it | |
| 8288 | from tls optimization but it's safer to skip | |
| 663a1470 | 8289 | the entire optimization. */ |
| 25f53a85 | 8290 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8291 | "TLS optimization disabled\n"), |
| 8292 | ibfd, sec, rel->r_offset); | |
| 8293 | ret = TRUE; | |
| 8294 | goto err_free_rel; | |
| 102890f0 AM |
8295 | } |
| 8296 | ||
| 85f7a9cb | 8297 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8298 | { |
| 8299 | struct plt_entry *ent; | |
| 8300 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8301 | ent != NULL; | |
| 8302 | ent = ent->next) | |
| 8303 | if (ent->addend == 0) | |
| 411e1bfb | 8304 | { |
| 102890f0 | 8305 | if (ent->plt.refcount > 0) |
| 30038c59 | 8306 | { |
| 102890f0 AM |
8307 | ent->plt.refcount -= 1; |
| 8308 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8309 | } |
| 102890f0 | 8310 | break; |
| 411e1bfb | 8311 | } |
| 102890f0 | 8312 | } |
| 411e1bfb | 8313 | |
| 85f7a9cb | 8314 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8315 | { |
| 8316 | struct plt_entry *ent; | |
| 8317 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8318 | ent != NULL; | |
| 8319 | ent = ent->next) | |
| 8320 | if (ent->addend == 0) | |
| 411e1bfb | 8321 | { |
| 102890f0 AM |
8322 | if (ent->plt.refcount > 0) |
| 8323 | ent->plt.refcount -= 1; | |
| 8324 | break; | |
| 411e1bfb | 8325 | } |
| 102890f0 | 8326 | } |
| 411e1bfb | 8327 | |
| 102890f0 | 8328 | if (tls_clear == 0) |
| 30038c59 AM |
8329 | continue; |
| 8330 | ||
| 102890f0 AM |
8331 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8332 | { | |
| 8333 | struct got_entry *ent; | |
| 411e1bfb | 8334 | |
| 102890f0 AM |
8335 | /* Adjust got entry for this reloc. */ |
| 8336 | if (h != NULL) | |
| 8337 | ent = h->got.glist; | |
| 8338 | else | |
| 8339 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8340 | |
| 102890f0 AM |
8341 | for (; ent != NULL; ent = ent->next) |
| 8342 | if (ent->addend == rel->r_addend | |
| 8343 | && ent->owner == ibfd | |
| 8344 | && ent->tls_type == tls_type) | |
| 8345 | break; | |
| 8346 | if (ent == NULL) | |
| 8347 | abort (); | |
| 411e1bfb | 8348 | |
| 102890f0 AM |
8349 | if (tls_set == 0) |
| 8350 | { | |
| 8351 | /* We managed to get rid of a got entry. */ | |
| 8352 | if (ent->got.refcount > 0) | |
| 8353 | ent->got.refcount -= 1; | |
| 8354 | } | |
| 8355 | } | |
| 8356 | else | |
| 8357 | { | |
| 8358 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8359 | we'll lose one or two dyn relocs. */ | |
| 8360 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8361 | NULL, h, sym)) |
| 102890f0 | 8362 | return FALSE; |
| 411e1bfb | 8363 | |
| 102890f0 AM |
8364 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8365 | { | |
| 8366 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8367 | NULL, h, sym)) |
| 102890f0 AM |
8368 | return FALSE; |
| 8369 | } | |
| 8370 | } | |
| 411e1bfb | 8371 | |
| 102890f0 AM |
8372 | *tls_mask |= tls_set; |
| 8373 | *tls_mask &= ~tls_clear; | |
| 8374 | } | |
| 8c1d1bb8 | 8375 | |
| 102890f0 AM |
8376 | if (elf_section_data (sec)->relocs != relstart) |
| 8377 | free (relstart); | |
| 8378 | } | |
| 411e1bfb | 8379 | |
| 663a1470 AM |
8380 | if (locsyms != NULL |
| 8381 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8382 | { | |
| 8383 | if (!info->keep_memory) | |
| 8384 | free (locsyms); | |
| 8385 | else | |
| 8386 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8387 | } | |
| 8388 | } | |
| 411e1bfb | 8389 | |
| 663a1470 AM |
8390 | if (toc_ref != NULL) |
| 8391 | free (toc_ref); | |
| b34976b6 | 8392 | return TRUE; |
| 1e2f5b6e | 8393 | } |
| b34976b6 | 8394 | |
| c5614fa4 AM |
8395 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8396 | the values of any global symbols in a toc section that has been | |
| 8397 | edited. Globals in toc sections should be a rarity, so this function | |
| 8398 | sets a flag if any are found in toc sections other than the one just | |
| 8399 | edited, so that futher hash table traversals can be avoided. */ | |
| 8400 | ||
| 8401 | struct adjust_toc_info | |
| 8402 | { | |
| 8403 | asection *toc; | |
| 8404 | unsigned long *skip; | |
| 8405 | bfd_boolean global_toc_syms; | |
| 8406 | }; | |
| 8407 | ||
| ba761f19 AM |
8408 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8409 | ||
| c5614fa4 AM |
8410 | static bfd_boolean |
| 8411 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8412 | { | |
| 8413 | struct ppc_link_hash_entry *eh; | |
| 8414 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8415 | unsigned long i; |
| c5614fa4 | 8416 | |
| c5614fa4 AM |
8417 | if (h->root.type != bfd_link_hash_defined |
| 8418 | && h->root.type != bfd_link_hash_defweak) | |
| 8419 | return TRUE; | |
| 8420 | ||
| 8421 | eh = (struct ppc_link_hash_entry *) h; | |
| 8422 | if (eh->adjust_done) | |
| 8423 | return TRUE; | |
| 8424 | ||
| 8425 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8426 | { | |
| 854b41e7 AM |
8427 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8428 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8429 | else |
| 854b41e7 AM |
8430 | i = eh->elf.root.u.def.value >> 3; |
| 8431 | ||
| ba761f19 | 8432 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8433 | { |
| 8434 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8435 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8436 | do | |
| 8437 | ++i; | |
| ba761f19 | 8438 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8439 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8440 | } |
| 854b41e7 AM |
8441 | |
| 8442 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8443 | eh->adjust_done = 1; |
| 8444 | } | |
| 8445 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8446 | toc_inf->global_toc_syms = TRUE; | |
| 8447 | ||
| 8448 | return TRUE; | |
| 8449 | } | |
| 8450 | ||
| 560c8763 AM |
8451 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8452 | ||
| 8453 | static bfd_boolean | |
| 8454 | ok_lo_toc_insn (unsigned int insn) | |
| 8455 | { | |
| 8456 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8457 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8458 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8459 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8460 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8461 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8462 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8463 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8464 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8465 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8466 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8467 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8468 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8469 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8470 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8471 | && (insn & 3) != 1) | |
| 8472 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8473 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8474 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8475 | } | |
| 8476 | ||
| c5614fa4 AM |
8477 | /* Examine all relocs referencing .toc sections in order to remove |
| 8478 | unused .toc entries. */ | |
| 8479 | ||
| 8480 | bfd_boolean | |
| 33c0ec9d | 8481 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8482 | { |
| 8483 | bfd *ibfd; | |
| 8484 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8485 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8486 | |
| 67f0cbdb | 8487 | htab->do_toc_opt = 1; |
| c5614fa4 AM |
8488 | toc_inf.global_toc_syms = TRUE; |
| 8489 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 8490 | { | |
| 8491 | asection *toc, *sec; | |
| 8492 | Elf_Internal_Shdr *symtab_hdr; | |
| 8493 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8494 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8495 | unsigned long *skip, *drop; |
| 8496 | unsigned char *used; | |
| 8497 | unsigned char *keep, last, some_unused; | |
| 8498 | ||
| 854b41e7 AM |
8499 | if (!is_ppc64_elf (ibfd)) |
| 8500 | continue; | |
| 8501 | ||
| c5614fa4 AM |
8502 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8503 | if (toc == NULL | |
| 92b7a70f | 8504 | || toc->size == 0 |
| dbaa2011 AM |
8505 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8506 | || discarded_section (toc)) | |
| c5614fa4 AM |
8507 | continue; |
| 8508 | ||
| 425b145b | 8509 | toc_relocs = NULL; |
| c5614fa4 | 8510 | local_syms = NULL; |
| 0ffa91dd | 8511 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8512 | |
| 8513 | /* Look at sections dropped from the final link. */ | |
| 8514 | skip = NULL; | |
| 8515 | relstart = NULL; | |
| 8516 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8517 | { | |
| 8518 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8519 | || !discarded_section (sec) |
| c5614fa4 AM |
8520 | || get_opd_info (sec) |
| 8521 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8522 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8523 | continue; | |
| 8524 | ||
| 8525 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8526 | if (relstart == NULL) | |
| 8527 | goto error_ret; | |
| 8528 | ||
| 8529 | /* Run through the relocs to see which toc entries might be | |
| 8530 | unused. */ | |
| 8531 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8532 | { | |
| 8533 | enum elf_ppc64_reloc_type r_type; | |
| 8534 | unsigned long r_symndx; | |
| 8535 | asection *sym_sec; | |
| 8536 | struct elf_link_hash_entry *h; | |
| 8537 | Elf_Internal_Sym *sym; | |
| 8538 | bfd_vma val; | |
| 8539 | ||
| 8540 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8541 | switch (r_type) | |
| 8542 | { | |
| 8543 | default: | |
| 8544 | continue; | |
| 8545 | ||
| 8546 | case R_PPC64_TOC16: | |
| 8547 | case R_PPC64_TOC16_LO: | |
| 8548 | case R_PPC64_TOC16_HI: | |
| 8549 | case R_PPC64_TOC16_HA: | |
| 8550 | case R_PPC64_TOC16_DS: | |
| 8551 | case R_PPC64_TOC16_LO_DS: | |
| 8552 | break; | |
| 8553 | } | |
| 8554 | ||
| 8555 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8556 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8557 | r_symndx, ibfd)) | |
| 8558 | goto error_ret; | |
| 8559 | ||
| 8560 | if (sym_sec != toc) | |
| 8561 | continue; | |
| 8562 | ||
| 8563 | if (h != NULL) | |
| 8564 | val = h->root.u.def.value; | |
| 8565 | else | |
| 8566 | val = sym->st_value; | |
| 8567 | val += rel->r_addend; | |
| 8568 | ||
| 8569 | if (val >= toc->size) | |
| 8570 | continue; | |
| 8571 | ||
| 8572 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8573 | If not, don't mark as unused. */ | |
| 8574 | if (val & 7) | |
| 8575 | continue; | |
| 8576 | ||
| 8577 | if (skip == NULL) | |
| 8578 | { | |
| 854b41e7 | 8579 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8580 | if (skip == NULL) |
| 8581 | goto error_ret; | |
| 8582 | } | |
| 8583 | ||
| ba761f19 | 8584 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8585 | } |
| 8586 | ||
| 8587 | if (elf_section_data (sec)->relocs != relstart) | |
| 8588 | free (relstart); | |
| 8589 | } | |
| 8590 | ||
| ba761f19 AM |
8591 | /* For largetoc loads of address constants, we can convert |
| 8592 | . addis rx,2,addr@got@ha | |
| 8593 | . ld ry,addr@got@l(rx) | |
| 8594 | to | |
| 8595 | . addis rx,2,addr@toc@ha | |
| 8596 | . addi ry,rx,addr@toc@l | |
| 8597 | when addr is within 2G of the toc pointer. This then means | |
| 8598 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8599 | |
| ba761f19 AM |
8600 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8601 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8602 | && toc->reloc_count != 0) | |
| 8603 | { | |
| 8604 | /* Read toc relocs. */ | |
| 425b145b AM |
8605 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8606 | info->keep_memory); | |
| 8607 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8608 | goto error_ret; |
| 8609 | ||
| 425b145b | 8610 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8611 | { |
| 8612 | enum elf_ppc64_reloc_type r_type; | |
| 8613 | unsigned long r_symndx; | |
| 8614 | asection *sym_sec; | |
| 8615 | struct elf_link_hash_entry *h; | |
| 8616 | Elf_Internal_Sym *sym; | |
| 8617 | bfd_vma val, addr; | |
| 8618 | ||
| 8619 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8620 | if (r_type != R_PPC64_ADDR64) | |
| 8621 | continue; | |
| 8622 | ||
| 8623 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8624 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8625 | r_symndx, ibfd)) | |
| 8626 | goto error_ret; | |
| 8627 | ||
| 425b145b | 8628 | if (sym_sec == NULL |
| dbaa2011 | 8629 | || discarded_section (sym_sec)) |
| 425b145b AM |
8630 | continue; |
| 8631 | ||
| 726d3ab0 | 8632 | if (!SYMBOL_CALLS_LOCAL (info, h)) |
| ba761f19 AM |
8633 | continue; |
| 8634 | ||
| 8635 | if (h != NULL) | |
| bddc25c9 AM |
8636 | { |
| 8637 | if (h->type == STT_GNU_IFUNC) | |
| 8638 | continue; | |
| 8639 | val = h->root.u.def.value; | |
| 8640 | } | |
| ba761f19 | 8641 | else |
| bddc25c9 AM |
8642 | { |
| 8643 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8644 | continue; | |
| 8645 | val = sym->st_value; | |
| 8646 | } | |
| ba761f19 AM |
8647 | val += rel->r_addend; |
| 8648 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8649 | ||
| 8650 | /* We don't yet know the exact toc pointer value, but we | |
| 8651 | know it will be somewhere in the toc section. Don't | |
| 8652 | optimize if the difference from any possible toc | |
| 8653 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8654 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8655 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8656 | continue; | |
| 8657 | ||
| 8658 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 8659 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8660 | continue; | |
| 8661 | ||
| 8662 | if (skip == NULL) | |
| 8663 | { | |
| 8664 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 8665 | if (skip == NULL) | |
| 8666 | goto error_ret; | |
| 8667 | } | |
| 8668 | ||
| 8669 | skip[rel->r_offset >> 3] | |
| 425b145b | 8670 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 8671 | } |
| ba761f19 AM |
8672 | } |
| 8673 | ||
| c5614fa4 AM |
8674 | if (skip == NULL) |
| 8675 | continue; | |
| 8676 | ||
| 8677 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 8678 | if (used == NULL) | |
| 8679 | { | |
| 8680 | error_ret: | |
| 8681 | if (local_syms != NULL | |
| 8682 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8683 | free (local_syms); | |
| 8684 | if (sec != NULL | |
| 8685 | && relstart != NULL | |
| 8686 | && elf_section_data (sec)->relocs != relstart) | |
| 8687 | free (relstart); | |
| 425b145b AM |
8688 | if (toc_relocs != NULL |
| 8689 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 8690 | free (toc_relocs); | |
| c5614fa4 AM |
8691 | if (skip != NULL) |
| 8692 | free (skip); | |
| 8693 | return FALSE; | |
| 8694 | } | |
| 8695 | ||
| 30038c59 AM |
8696 | /* Now check all kept sections that might reference the toc. |
| 8697 | Check the toc itself last. */ | |
| 8698 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 8699 | : ibfd->sections); | |
| c5614fa4 | 8700 | sec != NULL; |
| c5614fa4 | 8701 | sec = (sec == toc ? NULL |
| c5614fa4 | 8702 | : sec->next == NULL ? toc |
| 30038c59 | 8703 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
8704 | : sec->next)) |
| 8705 | { | |
| 8706 | int repeat; | |
| 8707 | ||
| 8708 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8709 | || discarded_section (sec) |
| c5614fa4 AM |
8710 | || get_opd_info (sec) |
| 8711 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8712 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8713 | continue; | |
| 8714 | ||
| 854b41e7 AM |
8715 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 8716 | info->keep_memory); | |
| c5614fa4 AM |
8717 | if (relstart == NULL) |
| 8718 | goto error_ret; | |
| 8719 | ||
| 8720 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 8721 | do |
| d4f1ee75 AM |
8722 | { |
| 8723 | repeat = 0; | |
| 8724 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8725 | { | |
| 8726 | enum elf_ppc64_reloc_type r_type; | |
| 8727 | unsigned long r_symndx; | |
| 8728 | asection *sym_sec; | |
| 8729 | struct elf_link_hash_entry *h; | |
| 8730 | Elf_Internal_Sym *sym; | |
| 8731 | bfd_vma val; | |
| 8732 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 8733 | |
| d4f1ee75 AM |
8734 | r_type = ELF64_R_TYPE (rel->r_info); |
| 8735 | switch (r_type) | |
| 8736 | { | |
| 8737 | default: | |
| 8738 | insn_check = no_check; | |
| 8739 | break; | |
| 98528052 | 8740 | |
| d4f1ee75 AM |
8741 | case R_PPC64_GOT_TLSLD16_HA: |
| 8742 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8743 | case R_PPC64_GOT_TPREL16_HA: | |
| 8744 | case R_PPC64_GOT_DTPREL16_HA: | |
| 8745 | case R_PPC64_GOT16_HA: | |
| 8746 | case R_PPC64_TOC16_HA: | |
| 8747 | insn_check = check_ha; | |
| 8748 | break; | |
| 98528052 | 8749 | |
| d4f1ee75 AM |
8750 | case R_PPC64_GOT_TLSLD16_LO: |
| 8751 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8752 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8753 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 8754 | case R_PPC64_GOT16_LO: | |
| 8755 | case R_PPC64_GOT16_LO_DS: | |
| 8756 | case R_PPC64_TOC16_LO: | |
| 8757 | case R_PPC64_TOC16_LO_DS: | |
| 8758 | insn_check = check_lo; | |
| 8759 | break; | |
| 8760 | } | |
| 560c8763 | 8761 | |
| d4f1ee75 AM |
8762 | if (insn_check != no_check) |
| 8763 | { | |
| 8764 | bfd_vma off = rel->r_offset & ~3; | |
| 8765 | unsigned char buf[4]; | |
| 8766 | unsigned int insn; | |
| c5614fa4 | 8767 | |
| d4f1ee75 AM |
8768 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 8769 | { | |
| 8770 | free (used); | |
| 8771 | goto error_ret; | |
| 8772 | } | |
| 8773 | insn = bfd_get_32 (ibfd, buf); | |
| 8774 | if (insn_check == check_lo | |
| 8775 | ? !ok_lo_toc_insn (insn) | |
| 8776 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 8777 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 8778 | { | |
| 8779 | char str[12]; | |
| 8780 | ||
| 8781 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 8782 | sprintf (str, "%#08x", insn); | |
| 8783 | info->callbacks->einfo | |
| 8784 | (_("%P: %H: toc optimization is not supported for" | |
| 8785 | " %s instruction.\n"), | |
| 8786 | ibfd, sec, rel->r_offset & ~3, str); | |
| 8787 | } | |
| 8788 | } | |
| c5614fa4 | 8789 | |
| d4f1ee75 AM |
8790 | switch (r_type) |
| 8791 | { | |
| 8792 | case R_PPC64_TOC16: | |
| 8793 | case R_PPC64_TOC16_LO: | |
| 8794 | case R_PPC64_TOC16_HI: | |
| 8795 | case R_PPC64_TOC16_HA: | |
| 8796 | case R_PPC64_TOC16_DS: | |
| 8797 | case R_PPC64_TOC16_LO_DS: | |
| 8798 | /* In case we're taking addresses of toc entries. */ | |
| 8799 | case R_PPC64_ADDR64: | |
| 8800 | break; | |
| c5614fa4 | 8801 | |
| d4f1ee75 AM |
8802 | default: |
| 8803 | continue; | |
| 8804 | } | |
| c5614fa4 | 8805 | |
| d4f1ee75 AM |
8806 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8807 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8808 | r_symndx, ibfd)) | |
| 8809 | { | |
| 8810 | free (used); | |
| 8811 | goto error_ret; | |
| 8812 | } | |
| c5614fa4 | 8813 | |
| d4f1ee75 AM |
8814 | if (sym_sec != toc) |
| 8815 | continue; | |
| c5614fa4 | 8816 | |
| d4f1ee75 AM |
8817 | if (h != NULL) |
| 8818 | val = h->root.u.def.value; | |
| 8819 | else | |
| 8820 | val = sym->st_value; | |
| 8821 | val += rel->r_addend; | |
| ba761f19 | 8822 | |
| d4f1ee75 AM |
8823 | if (val >= toc->size) |
| 8824 | continue; | |
| ba761f19 | 8825 | |
| d4f1ee75 AM |
8826 | if ((skip[val >> 3] & can_optimize) != 0) |
| 8827 | { | |
| 8828 | bfd_vma off; | |
| 8829 | unsigned char opc; | |
| 8830 | ||
| 8831 | switch (r_type) | |
| 8832 | { | |
| 8833 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 8834 | break; |
| ba761f19 | 8835 | |
| d4f1ee75 AM |
8836 | case R_PPC64_TOC16_LO_DS: |
| 8837 | off = rel->r_offset; | |
| 8838 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 8839 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 8840 | off, 1)) | |
| 8841 | { | |
| 8842 | free (used); | |
| 8843 | goto error_ret; | |
| 8844 | } | |
| 8845 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 8846 | break; | |
| 8847 | /* Fall thru */ | |
| ba761f19 | 8848 | |
| d4f1ee75 AM |
8849 | default: |
| 8850 | /* Wrong sort of reloc, or not a ld. We may | |
| 8851 | as well clear ref_from_discarded too. */ | |
| 8852 | skip[val >> 3] = 0; | |
| 8853 | } | |
| 8854 | } | |
| 8855 | ||
| 8856 | if (sec != toc) | |
| 8857 | used[val >> 3] = 1; | |
| 8858 | /* For the toc section, we only mark as used if this | |
| 8859 | entry itself isn't unused. */ | |
| 8860 | else if ((used[rel->r_offset >> 3] | |
| 8861 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 8862 | && !used[val >> 3]) | |
| 8863 | { | |
| 8864 | /* Do all the relocs again, to catch reference | |
| 8865 | chains. */ | |
| 8866 | repeat = 1; | |
| 8867 | used[val >> 3] = 1; | |
| 8868 | } | |
| 8869 | } | |
| 8870 | } | |
| c5614fa4 | 8871 | while (repeat); |
| 854b41e7 AM |
8872 | |
| 8873 | if (elf_section_data (sec)->relocs != relstart) | |
| 8874 | free (relstart); | |
| c5614fa4 AM |
8875 | } |
| 8876 | ||
| 8877 | /* Merge the used and skip arrays. Assume that TOC | |
| 8878 | doublewords not appearing as either used or unused belong | |
| 8879 | to to an entry more than one doubleword in size. */ | |
| 8880 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 8881 | drop < skip + (toc->size + 7) / 8; | |
| 8882 | ++drop, ++keep) | |
| 8883 | { | |
| 8884 | if (*keep) | |
| 8885 | { | |
| ba761f19 AM |
8886 | *drop &= ~ref_from_discarded; |
| 8887 | if ((*drop & can_optimize) != 0) | |
| 8888 | some_unused = 1; | |
| c5614fa4 AM |
8889 | last = 0; |
| 8890 | } | |
| b140b010 | 8891 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
8892 | { |
| 8893 | some_unused = 1; | |
| ba761f19 | 8894 | last = ref_from_discarded; |
| c5614fa4 AM |
8895 | } |
| 8896 | else | |
| 8897 | *drop = last; | |
| 8898 | } | |
| 8899 | ||
| 8900 | free (used); | |
| 8901 | ||
| 8902 | if (some_unused) | |
| 8903 | { | |
| 8904 | bfd_byte *contents, *src; | |
| 8905 | unsigned long off; | |
| d62b3684 | 8906 | Elf_Internal_Sym *sym; |
| ba761f19 | 8907 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
8908 | |
| 8909 | /* Shuffle the toc contents, and at the same time convert the | |
| 8910 | skip array from booleans into offsets. */ | |
| 8911 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 8912 | goto error_ret; | |
| 8913 | ||
| 8914 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 8915 | ||
| 8916 | for (src = contents, off = 0, drop = skip; | |
| 8917 | src < contents + toc->size; | |
| 8918 | src += 8, ++drop) | |
| 8919 | { | |
| ba761f19 AM |
8920 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 8921 | off += 8; | |
| c5614fa4 AM |
8922 | else if (off != 0) |
| 8923 | { | |
| 8924 | *drop = off; | |
| 8925 | memcpy (src - off, src, 8); | |
| 8926 | } | |
| 8927 | } | |
| 854b41e7 | 8928 | *drop = off; |
| c5614fa4 AM |
8929 | toc->rawsize = toc->size; |
| 8930 | toc->size = src - contents - off; | |
| 8931 | ||
| ba761f19 AM |
8932 | /* Adjust addends for relocs against the toc section sym, |
| 8933 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
8934 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8935 | { | |
| 8936 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8937 | || discarded_section (sec)) |
| c5614fa4 AM |
8938 | continue; |
| 8939 | ||
| 8940 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 8941 | info->keep_memory); |
| c5614fa4 AM |
8942 | if (relstart == NULL) |
| 8943 | goto error_ret; | |
| 8944 | ||
| 8945 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8946 | { | |
| 8947 | enum elf_ppc64_reloc_type r_type; | |
| 8948 | unsigned long r_symndx; | |
| 8949 | asection *sym_sec; | |
| 8950 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 8951 | bfd_vma val; |
| c5614fa4 AM |
8952 | |
| 8953 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8954 | switch (r_type) | |
| 8955 | { | |
| 8956 | default: | |
| 8957 | continue; | |
| 8958 | ||
| 8959 | case R_PPC64_TOC16: | |
| 8960 | case R_PPC64_TOC16_LO: | |
| 8961 | case R_PPC64_TOC16_HI: | |
| 8962 | case R_PPC64_TOC16_HA: | |
| 8963 | case R_PPC64_TOC16_DS: | |
| 8964 | case R_PPC64_TOC16_LO_DS: | |
| 8965 | case R_PPC64_ADDR64: | |
| 8966 | break; | |
| 8967 | } | |
| 8968 | ||
| 8969 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8970 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8971 | r_symndx, ibfd)) | |
| 8972 | goto error_ret; | |
| 8973 | ||
| ba761f19 | 8974 | if (sym_sec != toc) |
| c5614fa4 AM |
8975 | continue; |
| 8976 | ||
| ba761f19 AM |
8977 | if (h != NULL) |
| 8978 | val = h->root.u.def.value; | |
| 8979 | else | |
| 8980 | { | |
| 8981 | val = sym->st_value; | |
| 8982 | if (val != 0) | |
| 8983 | local_toc_syms = TRUE; | |
| 8984 | } | |
| 8985 | ||
| 8986 | val += rel->r_addend; | |
| 854b41e7 AM |
8987 | |
| 8988 | if (val > toc->rawsize) | |
| 8989 | val = toc->rawsize; | |
| ba761f19 AM |
8990 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 8991 | continue; | |
| 8992 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 8993 | { | |
| 8994 | Elf_Internal_Rela *tocrel | |
| 425b145b | 8995 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
8996 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 8997 | ||
| 8998 | switch (r_type) | |
| 8999 | { | |
| 9000 | case R_PPC64_TOC16_HA: | |
| 9001 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9002 | break; | |
| 9003 | ||
| 9004 | case R_PPC64_TOC16_LO_DS: | |
| 9005 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9006 | break; | |
| 9007 | ||
| 9008 | default: | |
| 28942f62 AM |
9009 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9010 | ppc_howto_init (); | |
| b140b010 | 9011 | info->callbacks->einfo |
| bc30df16 | 9012 | (_("%P: %H: %s references " |
| b140b010 AM |
9013 | "optimized away TOC entry\n"), |
| 9014 | ibfd, sec, rel->r_offset, | |
| 9015 | ppc64_elf_howto_table[r_type]->name); | |
| 9016 | bfd_set_error (bfd_error_bad_value); | |
| 9017 | goto error_ret; | |
| ba761f19 AM |
9018 | } |
| 9019 | rel->r_addend = tocrel->r_addend; | |
| 9020 | elf_section_data (sec)->relocs = relstart; | |
| 9021 | continue; | |
| 9022 | } | |
| 9023 | ||
| 9024 | if (h != NULL || sym->st_value != 0) | |
| 9025 | continue; | |
| 854b41e7 AM |
9026 | |
| 9027 | rel->r_addend -= skip[val >> 3]; | |
| 9028 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9029 | } |
| 854b41e7 AM |
9030 | |
| 9031 | if (elf_section_data (sec)->relocs != relstart) | |
| 9032 | free (relstart); | |
| c5614fa4 AM |
9033 | } |
| 9034 | ||
| 9035 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9036 | but handle them anyway. */ | |
| df22d223 AM |
9037 | if (local_syms != NULL) |
| 9038 | for (sym = local_syms; | |
| 9039 | sym < local_syms + symtab_hdr->sh_info; | |
| 9040 | ++sym) | |
| 9041 | if (sym->st_value != 0 | |
| 9042 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9043 | { | |
| 9044 | unsigned long i; | |
| 854b41e7 | 9045 | |
| df22d223 AM |
9046 | if (sym->st_value > toc->rawsize) |
| 9047 | i = toc->rawsize >> 3; | |
| 9048 | else | |
| 9049 | i = sym->st_value >> 3; | |
| 854b41e7 | 9050 | |
| df22d223 AM |
9051 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9052 | { | |
| 9053 | if (local_toc_syms) | |
| 9054 | (*_bfd_error_handler) | |
| 9055 | (_("%s defined on removed toc entry"), | |
| 9056 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9057 | do | |
| 9058 | ++i; | |
| 9059 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9060 | sym->st_value = (bfd_vma) i << 3; | |
| 9061 | } | |
| d62b3684 | 9062 | |
| df22d223 AM |
9063 | sym->st_value -= skip[i]; |
| 9064 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9065 | } | |
| c5614fa4 | 9066 | |
| 854b41e7 | 9067 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9068 | if (toc_inf.global_toc_syms) |
| 9069 | { | |
| 9070 | toc_inf.toc = toc; | |
| 9071 | toc_inf.skip = skip; | |
| 9072 | toc_inf.global_toc_syms = FALSE; | |
| 9073 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9074 | &toc_inf); | |
| 9075 | } | |
| 854b41e7 AM |
9076 | |
| 9077 | if (toc->reloc_count != 0) | |
| 9078 | { | |
| d4730f92 | 9079 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9080 | Elf_Internal_Rela *wrel; |
| 9081 | bfd_size_type sz; | |
| 9082 | ||
| 854b41e7 | 9083 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9084 | if (toc_relocs == NULL) |
| 9085 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9086 | info->keep_memory); | |
| 9087 | if (toc_relocs == NULL) | |
| 9088 | goto error_ret; | |
| 9089 | ||
| 425b145b AM |
9090 | wrel = toc_relocs; |
| 9091 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9092 | if ((skip[rel->r_offset >> 3] |
| 9093 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9094 | { |
| 9095 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9096 | wrel->r_info = rel->r_info; | |
| 9097 | wrel->r_addend = rel->r_addend; | |
| 9098 | ++wrel; | |
| 9099 | } | |
| 9100 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9101 | &local_syms, NULL, NULL)) | |
| 9102 | goto error_ret; | |
| 9103 | ||
| 425b145b AM |
9104 | elf_section_data (toc)->relocs = toc_relocs; |
| 9105 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9106 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9107 | sz = rel_hdr->sh_entsize; | |
| 9108 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9109 | } |
| c5614fa4 | 9110 | } |
| 28be611c AM |
9111 | else if (toc_relocs != NULL |
| 9112 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9113 | free (toc_relocs); |
| c5614fa4 AM |
9114 | |
| 9115 | if (local_syms != NULL | |
| 9116 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9117 | { | |
| 9118 | if (!info->keep_memory) | |
| 9119 | free (local_syms); | |
| 9120 | else | |
| 9121 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9122 | } | |
| 9123 | free (skip); | |
| 9124 | } | |
| 9125 | ||
| 9126 | return TRUE; | |
| 9127 | } | |
| 9128 | ||
| 1bbe0902 AM |
9129 | /* Return true iff input section I references the TOC using |
| 9130 | instructions limited to +/-32k offsets. */ | |
| 9131 | ||
| 9132 | bfd_boolean | |
| 9133 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9134 | { | |
| 9135 | return (is_ppc64_elf (i->owner) | |
| 9136 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9137 | } | |
| 9138 | ||
| 927be08e AM |
9139 | /* Allocate space for one GOT entry. */ |
| 9140 | ||
| 9141 | static void | |
| 9142 | allocate_got (struct elf_link_hash_entry *h, | |
| 9143 | struct bfd_link_info *info, | |
| 9144 | struct got_entry *gent) | |
| 9145 | { | |
| 9146 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9147 | bfd_boolean dyn; | |
| 9148 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9149 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9150 | ? 16 : 8); | |
| 9151 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9152 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9153 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9154 | ||
| 9155 | gent->got.offset = got->size; | |
| 9156 | got->size += entsize; | |
| 9157 | ||
| 9158 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9159 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9160 | { |
| 19e08130 AM |
9161 | htab->reliplt->size += rentsize; |
| 9162 | htab->got_reli_size += rentsize; | |
| 927be08e | 9163 | } |
| 19e08130 AM |
9164 | else if ((info->shared |
| 9165 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
| 9166 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9167 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9168 | { |
| 19e08130 | 9169 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9170 | relgot->size += rentsize; |
| 927be08e AM |
9171 | } |
| 9172 | } | |
| 9173 | ||
| 7865406b AM |
9174 | /* This function merges got entries in the same toc group. */ |
| 9175 | ||
| 9176 | static void | |
| 9177 | merge_got_entries (struct got_entry **pent) | |
| 9178 | { | |
| 9179 | struct got_entry *ent, *ent2; | |
| 9180 | ||
| 9181 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9182 | if (!ent->is_indirect) | |
| 9183 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9184 | if (!ent2->is_indirect | |
| 9185 | && ent2->addend == ent->addend | |
| 9186 | && ent2->tls_type == ent->tls_type | |
| 9187 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9188 | { | |
| 9189 | ent2->is_indirect = TRUE; | |
| 9190 | ent2->got.ent = ent; | |
| 9191 | } | |
| 9192 | } | |
| 9193 | ||
| 65f38f15 AM |
9194 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9195 | dynamic relocs. */ | |
| 5bd4f169 | 9196 | |
| b34976b6 | 9197 | static bfd_boolean |
| 4ce794b7 | 9198 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9199 | { |
| 65f38f15 AM |
9200 | struct bfd_link_info *info; |
| 9201 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9202 | asection *s; |
| 65f38f15 | 9203 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9204 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9205 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9206 | |
| e92d460e | 9207 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9208 | return TRUE; |
| 5bd4f169 | 9209 | |
| 65f38f15 AM |
9210 | info = (struct bfd_link_info *) inf; |
| 9211 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9212 | if (htab == NULL) |
| 9213 | return FALSE; | |
| 5bd4f169 | 9214 | |
| e054468f AM |
9215 | if ((htab->elf.dynamic_sections_created |
| 9216 | && h->dynindx != -1 | |
| 9217 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) | |
| 9218 | || h->type == STT_GNU_IFUNC) | |
| 5bd4f169 | 9219 | { |
| 411e1bfb AM |
9220 | struct plt_entry *pent; |
| 9221 | bfd_boolean doneone = FALSE; | |
| 9222 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9223 | if (pent->plt.refcount > 0) | |
| 9224 | { | |
| 25f23106 AM |
9225 | if (!htab->elf.dynamic_sections_created |
| 9226 | || h->dynindx == -1) | |
| e054468f AM |
9227 | { |
| 9228 | s = htab->iplt; | |
| 9229 | pent->plt.offset = s->size; | |
| 9230 | s->size += PLT_ENTRY_SIZE; | |
| 9231 | s = htab->reliplt; | |
| 9232 | } | |
| 9233 | else | |
| 9234 | { | |
| 9235 | /* If this is the first .plt entry, make room for the special | |
| 9236 | first entry. */ | |
| 9237 | s = htab->plt; | |
| 9238 | if (s->size == 0) | |
| 9239 | s->size += PLT_INITIAL_ENTRY_SIZE; | |
| 9240 | ||
| 9241 | pent->plt.offset = s->size; | |
| 9242 | ||
| 9243 | /* Make room for this entry. */ | |
| 9244 | s->size += PLT_ENTRY_SIZE; | |
| 9245 | ||
| 9246 | /* Make room for the .glink code. */ | |
| 9247 | s = htab->glink; | |
| 9248 | if (s->size == 0) | |
| 9249 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9250 | /* We need bigger stubs past index 32767. */ | |
| 9251 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9252 | s->size += 4; | |
| 9253 | s->size += 2*4; | |
| 9254 | ||
| 9255 | /* We also need to make an entry in the .rela.plt section. */ | |
| 9256 | s = htab->relplt; | |
| 9257 | } | |
| eea6121a | 9258 | s->size += sizeof (Elf64_External_Rela); |
| 411e1bfb AM |
9259 | doneone = TRUE; |
| 9260 | } | |
| 9261 | else | |
| 9262 | pent->plt.offset = (bfd_vma) -1; | |
| 9263 | if (!doneone) | |
| 65f38f15 | 9264 | { |
| 411e1bfb | 9265 | h->plt.plist = NULL; |
| f5385ebf | 9266 | h->needs_plt = 0; |
| 65f38f15 AM |
9267 | } |
| 9268 | } | |
| 9269 | else | |
| 9270 | { | |
| 411e1bfb | 9271 | h->plt.plist = NULL; |
| f5385ebf | 9272 | h->needs_plt = 0; |
| 65f38f15 AM |
9273 | } |
| 9274 | ||
| 951fd09b AM |
9275 | eh = (struct ppc_link_hash_entry *) h; |
| 9276 | /* Run through the TLS GD got entries first if we're changing them | |
| 9277 | to TPREL. */ | |
| e7b938ca | 9278 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9279 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9280 | if (gent->got.refcount > 0 | |
| 9281 | && (gent->tls_type & TLS_GD) != 0) | |
| 9282 | { | |
| 9283 | /* This was a GD entry that has been converted to TPREL. If | |
| 9284 | there happens to be a TPREL entry we can use that one. */ | |
| 9285 | struct got_entry *ent; | |
| 9286 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9287 | if (ent->got.refcount > 0 | |
| 9288 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9289 | && ent->addend == gent->addend |
| 9290 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9291 | { |
| 9292 | gent->got.refcount = 0; | |
| 9293 | break; | |
| 9294 | } | |
| 9295 | ||
| 9296 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9297 | if (gent->got.refcount != 0) | |
| 9298 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9299 | } | |
| 9300 | ||
| 7865406b AM |
9301 | /* Remove any list entry that won't generate a word in the GOT before |
| 9302 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9303 | entries. */ | |
| 0b8bcf0d AM |
9304 | pgent = &h->got.glist; |
| 9305 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9306 | if (gent->got.refcount > 0) |
| 7865406b AM |
9307 | { |
| 9308 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9309 | && !h->def_dynamic) | |
| 9310 | { | |
| 9311 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9312 | *pgent = gent->next; | |
| 9313 | } | |
| 9314 | else | |
| 9315 | pgent = &gent->next; | |
| 9316 | } | |
| 9317 | else | |
| 9318 | *pgent = gent->next; | |
| 9319 | ||
| 9320 | if (!htab->do_multi_toc) | |
| 9321 | merge_got_entries (&h->got.glist); | |
| 9322 | ||
| 9323 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9324 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9325 | { |
| 9326 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9327 | Undefined weak syms won't yet be marked as dynamic, |
| 9328 | nor will all TLS symbols. */ | |
| 411e1bfb | 9329 | if (h->dynindx == -1 |
| b099ab9f | 9330 | && !h->forced_local |
| 25f23106 | 9331 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9332 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9333 | { |
| c152c796 | 9334 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9335 | return FALSE; |
| 9336 | } | |
| 65f38f15 | 9337 | |
| 0c8d6e5c | 9338 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9339 | abort (); |
| 0ffa91dd | 9340 | |
| 927be08e | 9341 | allocate_got (h, info, gent); |
| 411e1bfb | 9342 | } |
| 65f38f15 | 9343 | |
| b099ab9f | 9344 | if (eh->dyn_relocs == NULL |
| 25f23106 AM |
9345 | || (!htab->elf.dynamic_sections_created |
| 9346 | && h->type != STT_GNU_IFUNC)) | |
| b34976b6 | 9347 | return TRUE; |
| 65f38f15 AM |
9348 | |
| 9349 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 9350 | dynamic pc-relative relocs against symbols which turn out to be | |
| 9351 | defined in regular objects. For the normal shared case, discard | |
| 9352 | space for relocs that have become local due to symbol visibility | |
| 9353 | changes. */ | |
| 9354 | ||
| 9355 | if (info->shared) | |
| 9356 | { | |
| 9c7a29a3 | 9357 | /* Relocs that use pc_count are those that appear on a call insn, |
| 1d483afe | 9358 | or certain REL relocs (see must_be_dyn_reloc) that can be |
| 9c7a29a3 AM |
9359 | generated via assembly. We want calls to protected symbols to |
| 9360 | resolve directly to the function rather than going via the plt. | |
| 9361 | If people want function pointer comparisons to work as expected | |
| 9362 | then they should avoid writing weird assembly. */ | |
| 09695f56 | 9363 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 65f38f15 | 9364 | { |
| 6061a67d | 9365 | struct elf_dyn_relocs **pp; |
| 65f38f15 AM |
9366 | |
| 9367 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 5bd4f169 | 9368 | { |
| 65f38f15 AM |
9369 | p->count -= p->pc_count; |
| 9370 | p->pc_count = 0; | |
| 9371 | if (p->count == 0) | |
| 9372 | *pp = p->next; | |
| 9373 | else | |
| 9374 | pp = &p->next; | |
| 5bd4f169 | 9375 | } |
| 65f38f15 | 9376 | } |
| 4e795f50 AM |
9377 | |
| 9378 | /* Also discard relocs on undefined weak syms with non-default | |
| 9379 | visibility. */ | |
| cab87ef9 AM |
9380 | if (eh->dyn_relocs != NULL |
| 9381 | && h->root.type == bfd_link_hash_undefweak) | |
| dfbb6ac9 AM |
9382 | { |
| 9383 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9384 | eh->dyn_relocs = NULL; | |
| 9385 | ||
| 9386 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9387 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9388 | else if (h->dynindx == -1 | |
| 9389 | && !h->forced_local) | |
| 9390 | { | |
| 9391 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9392 | return FALSE; | |
| 9393 | } | |
| 9394 | } | |
| 65f38f15 | 9395 | } |
| 25f23106 AM |
9396 | else if (h->type == STT_GNU_IFUNC) |
| 9397 | { | |
| 9398 | if (!h->non_got_ref) | |
| 9399 | eh->dyn_relocs = NULL; | |
| 9400 | } | |
| f4656909 | 9401 | else if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 AM |
9402 | { |
| 9403 | /* For the non-shared case, discard space for relocs against | |
| 9404 | symbols which turn out to need copy relocs or are not | |
| 9405 | dynamic. */ | |
| 9406 | ||
| f5385ebf | 9407 | if (!h->non_got_ref |
| f5385ebf | 9408 | && !h->def_regular) |
| 65f38f15 AM |
9409 | { |
| 9410 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9411 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9412 | if (h->dynindx == -1 | |
| f5385ebf | 9413 | && !h->forced_local) |
| 65f38f15 | 9414 | { |
| c152c796 | 9415 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| b34976b6 | 9416 | return FALSE; |
| 65f38f15 AM |
9417 | } |
| 9418 | ||
| 9419 | /* If that succeeded, we know we'll be keeping all the | |
| 9420 | relocs. */ | |
| 9421 | if (h->dynindx != -1) | |
| 9422 | goto keep; | |
| 9423 | } | |
| 9424 | ||
| 9425 | eh->dyn_relocs = NULL; | |
| 9426 | ||
| ec338859 | 9427 | keep: ; |
| 65f38f15 AM |
9428 | } |
| 9429 | ||
| 9430 | /* Finally, allocate space. */ | |
| 9431 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9432 | { | |
| 9433 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 19e08130 | 9434 | if (eh->elf.type == STT_GNU_IFUNC) |
| 25f23106 | 9435 | sreloc = htab->reliplt; |
| eea6121a | 9436 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
| 65f38f15 AM |
9437 | } |
| 9438 | ||
| b34976b6 | 9439 | return TRUE; |
| 65f38f15 AM |
9440 | } |
| 9441 | ||
| 9442 | /* Find any dynamic relocs that apply to read-only sections. */ | |
| 9443 | ||
| b34976b6 | 9444 | static bfd_boolean |
| 4ce794b7 | 9445 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 AM |
9446 | { |
| 9447 | struct ppc_link_hash_entry *eh; | |
| 6061a67d | 9448 | struct elf_dyn_relocs *p; |
| 65f38f15 AM |
9449 | |
| 9450 | eh = (struct ppc_link_hash_entry *) h; | |
| 9451 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9452 | { | |
| 9453 | asection *s = p->sec->output_section; | |
| 9454 | ||
| 9455 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 9456 | { | |
| 4ce794b7 | 9457 | struct bfd_link_info *info = inf; |
| 65f38f15 AM |
9458 | |
| 9459 | info->flags |= DF_TEXTREL; | |
| 9460 | ||
| 9461 | /* Not an error, just cut short the traversal. */ | |
| b34976b6 | 9462 | return FALSE; |
| 65f38f15 AM |
9463 | } |
| 9464 | } | |
| b34976b6 | 9465 | return TRUE; |
| 65f38f15 AM |
9466 | } |
| 9467 | ||
| 9468 | /* Set the sizes of the dynamic sections. */ | |
| 9469 | ||
| b34976b6 | 9470 | static bfd_boolean |
| ee67d69a | 9471 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9472 | struct bfd_link_info *info) |
| 65f38f15 AM |
9473 | { |
| 9474 | struct ppc_link_hash_table *htab; | |
| 9475 | bfd *dynobj; | |
| 9476 | asection *s; | |
| b34976b6 | 9477 | bfd_boolean relocs; |
| 65f38f15 | 9478 | bfd *ibfd; |
| 7865406b | 9479 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9480 | |
| 9481 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9482 | if (htab == NULL) |
| 9483 | return FALSE; | |
| 9484 | ||
| 65f38f15 AM |
9485 | dynobj = htab->elf.dynobj; |
| 9486 | if (dynobj == NULL) | |
| 9487 | abort (); | |
| 9488 | ||
| 9489 | if (htab->elf.dynamic_sections_created) | |
| 9490 | { | |
| 9491 | /* Set the contents of the .interp section to the interpreter. */ | |
| 36af4a4e | 9492 | if (info->executable) |
| 65f38f15 | 9493 | { |
| 3d4d4302 | 9494 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9495 | if (s == NULL) |
| 9496 | abort (); | |
| eea6121a | 9497 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9498 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9499 | } | |
| 9500 | } | |
| 9501 | ||
| 9502 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9503 | relocs. */ | |
| 9504 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 9505 | { | |
| 411e1bfb AM |
9506 | struct got_entry **lgot_ents; |
| 9507 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9508 | struct plt_entry **local_plt; |
| 9509 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9510 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9511 | bfd_size_type locsymcount; |
| 9512 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9513 | |
| 0c8d6e5c | 9514 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9515 | continue; |
| 9516 | ||
| 9517 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9518 | { | |
| 19e08130 | 9519 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9520 | |
| 6edfbbad | 9521 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9522 | { |
| ec338859 AM |
9523 | if (!bfd_is_abs_section (p->sec) |
| 9524 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9525 | { | |
| 9526 | /* Input section has been discarded, either because | |
| 9527 | it is a copy of a linkonce section or due to | |
| 9528 | linker script /DISCARD/, so we'll be discarding | |
| 9529 | the relocs too. */ | |
| 9530 | } | |
| 248866a8 | 9531 | else if (p->count != 0) |
| ec338859 | 9532 | { |
| 19e08130 AM |
9533 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9534 | if (p->ifunc) | |
| 25f23106 | 9535 | srel = htab->reliplt; |
| eea6121a | 9536 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9537 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9538 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9539 | } |
| 65f38f15 AM |
9540 | } |
| 9541 | } | |
| 9542 | ||
| 411e1bfb AM |
9543 | lgot_ents = elf_local_got_ents (ibfd); |
| 9544 | if (!lgot_ents) | |
| 65f38f15 AM |
9545 | continue; |
| 9546 | ||
| 0ffa91dd | 9547 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9548 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9549 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9550 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9551 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9552 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9553 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9554 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9555 | { |
| 0b8bcf0d | 9556 | struct got_entry **pent, *ent; |
| 411e1bfb | 9557 | |
| 0b8bcf0d AM |
9558 | pent = lgot_ents; |
| 9559 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9560 | if (ent->got.refcount > 0) |
| 9561 | { | |
| e7b938ca | 9562 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9563 | { |
| 927be08e | 9564 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9565 | *pent = ent->next; |
| 411e1bfb AM |
9566 | } |
| 9567 | else | |
| 9568 | { | |
| 19e08130 AM |
9569 | unsigned int ent_size = 8; |
| 9570 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9571 | ||
| eea6121a | 9572 | ent->got.offset = s->size; |
| e7b938ca | 9573 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9574 | { |
| 19e08130 AM |
9575 | ent_size *= 2; |
| 9576 | rel_size *= 2; | |
| 9577 | } | |
| 9578 | s->size += ent_size; | |
| 9579 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9580 | { | |
| 9581 | htab->reliplt->size += rel_size; | |
| 9582 | htab->got_reli_size += rel_size; | |
| 9583 | } | |
| 9584 | else if (info->shared) | |
| 9585 | { | |
| 9586 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9587 | srel->size += rel_size; | |
| 927be08e | 9588 | } |
| 0b8bcf0d | 9589 | pent = &ent->next; |
| 411e1bfb AM |
9590 | } |
| 9591 | } | |
| 9592 | else | |
| 0b8bcf0d | 9593 | *pent = ent->next; |
| 65f38f15 | 9594 | } |
| e054468f AM |
9595 | |
| 9596 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9597 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9598 | { | |
| 9599 | struct plt_entry *ent; | |
| 9600 | ||
| 9601 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9602 | if (ent->plt.refcount > 0) | |
| 9603 | { | |
| 91d6fa6a | 9604 | s = htab->iplt; |
| e054468f AM |
9605 | ent->plt.offset = s->size; |
| 9606 | s->size += PLT_ENTRY_SIZE; | |
| 9607 | ||
| 25f23106 | 9608 | htab->reliplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9609 | } |
| 9610 | else | |
| 9611 | ent->plt.offset = (bfd_vma) -1; | |
| 9612 | } | |
| 65f38f15 AM |
9613 | } |
| 9614 | ||
| 9615 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9616 | sym dynamic relocs. */ | |
| 4ce794b7 | 9617 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| 65f38f15 | 9618 | |
| 7865406b | 9619 | first_tlsld = NULL; |
| 102890f0 AM |
9620 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 9621 | { | |
| 7865406b AM |
9622 | struct got_entry *ent; |
| 9623 | ||
| 0c8d6e5c | 9624 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
9625 | continue; |
| 9626 | ||
| 7865406b AM |
9627 | ent = ppc64_tlsld_got (ibfd); |
| 9628 | if (ent->got.refcount > 0) | |
| 102890f0 | 9629 | { |
| 7865406b | 9630 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 9631 | { |
| 7865406b AM |
9632 | ent->is_indirect = TRUE; |
| 9633 | ent->got.ent = first_tlsld; | |
| 9634 | } | |
| 9635 | else | |
| 9636 | { | |
| 9637 | if (first_tlsld == NULL) | |
| 9638 | first_tlsld = ent; | |
| 9639 | s = ppc64_elf_tdata (ibfd)->got; | |
| 9640 | ent->got.offset = s->size; | |
| 9641 | ent->owner = ibfd; | |
| 9642 | s->size += 16; | |
| 9643 | if (info->shared) | |
| 9644 | { | |
| 9645 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9646 | srel->size += sizeof (Elf64_External_Rela); | |
| 9647 | } | |
| 102890f0 AM |
9648 | } |
| 9649 | } | |
| 9650 | else | |
| 7865406b | 9651 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
9652 | } |
| 9653 | ||
| 65f38f15 AM |
9654 | /* We now have determined the sizes of the various dynamic sections. |
| 9655 | Allocate memory for them. */ | |
| b34976b6 | 9656 | relocs = FALSE; |
| 65f38f15 AM |
9657 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 9658 | { | |
| 9659 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9660 | continue; | |
| 9661 | ||
| 4ce794b7 | 9662 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
9663 | /* These haven't been allocated yet; don't strip. */ |
| 9664 | continue; | |
| e717da7e AM |
9665 | else if (s == htab->got |
| 9666 | || s == htab->plt | |
| e054468f | 9667 | || s == htab->iplt |
| c456f082 AM |
9668 | || s == htab->glink |
| 9669 | || s == htab->dynbss) | |
| 65f38f15 AM |
9670 | { |
| 9671 | /* Strip this section if we don't need it; see the | |
| 9672 | comment below. */ | |
| 5bd4f169 | 9673 | } |
| 58d180e8 AM |
9674 | else if (s == htab->glink_eh_frame) |
| 9675 | { | |
| 9676 | if (!bfd_is_abs_section (s->output_section)) | |
| 9677 | /* Not sized yet. */ | |
| 9678 | continue; | |
| 9679 | } | |
| 70cc837d | 9680 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 9681 | { |
| c456f082 | 9682 | if (s->size != 0) |
| 5bd4f169 | 9683 | { |
| 4ce794b7 | 9684 | if (s != htab->relplt) |
| b34976b6 | 9685 | relocs = TRUE; |
| 5bd4f169 AM |
9686 | |
| 9687 | /* We use the reloc_count field as a counter if we need | |
| 9688 | to copy relocs into the output file. */ | |
| 9689 | s->reloc_count = 0; | |
| 9690 | } | |
| 9691 | } | |
| 65f38f15 | 9692 | else |
| 5bd4f169 AM |
9693 | { |
| 9694 | /* It's not one of our sections, so don't allocate space. */ | |
| 9695 | continue; | |
| 9696 | } | |
| 9697 | ||
| eea6121a | 9698 | if (s->size == 0) |
| 5bd4f169 | 9699 | { |
| c456f082 AM |
9700 | /* If we don't need this section, strip it from the |
| 9701 | output file. This is mostly to handle .rela.bss and | |
| 9702 | .rela.plt. We must create both sections in | |
| 9703 | create_dynamic_sections, because they must be created | |
| 9704 | before the linker maps input sections to output | |
| 9705 | sections. The linker does that before | |
| 9706 | adjust_dynamic_symbol is called, and it is that | |
| 9707 | function which decides whether anything needs to go | |
| 9708 | into these sections. */ | |
| 8423293d | 9709 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
9710 | continue; |
| 9711 | } | |
| 9712 | ||
| c456f082 | 9713 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
9714 | continue; |
| 9715 | ||
| 65f38f15 AM |
9716 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 9717 | here in case unused entries are not reclaimed before the | |
| 9718 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
9719 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 9720 | sections instead of garbage. | |
| 9721 | We also rely on the section contents being zero when writing | |
| 9722 | the GOT. */ | |
| eea6121a | 9723 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 9724 | if (s->contents == NULL) |
| b34976b6 | 9725 | return FALSE; |
| 5bd4f169 AM |
9726 | } |
| 9727 | ||
| e717da7e AM |
9728 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 9729 | { | |
| 0c8d6e5c | 9730 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
9731 | continue; |
| 9732 | ||
| e717da7e AM |
9733 | s = ppc64_elf_tdata (ibfd)->got; |
| 9734 | if (s != NULL && s != htab->got) | |
| 9735 | { | |
| eea6121a | 9736 | if (s->size == 0) |
| 8423293d | 9737 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
9738 | else |
| 9739 | { | |
| eea6121a | 9740 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
9741 | if (s->contents == NULL) |
| 9742 | return FALSE; | |
| 9743 | } | |
| 9744 | } | |
| 9745 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 9746 | if (s != NULL) | |
| 9747 | { | |
| eea6121a | 9748 | if (s->size == 0) |
| 8423293d | 9749 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
9750 | else |
| 9751 | { | |
| eea6121a | 9752 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
9753 | if (s->contents == NULL) |
| 9754 | return FALSE; | |
| 9755 | relocs = TRUE; | |
| 9756 | s->reloc_count = 0; | |
| 9757 | } | |
| 9758 | } | |
| 9759 | } | |
| 9760 | ||
| e86ce104 | 9761 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 AM |
9762 | { |
| 9763 | /* Add some entries to the .dynamic section. We fill in the | |
| 9764 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 9765 | must add the entries now so that we get the correct size for | |
| 9766 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 9767 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 9768 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 9769 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 9770 | |
| 36af4a4e | 9771 | if (info->executable) |
| 5bd4f169 | 9772 | { |
| dc810e39 | 9773 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 9774 | return FALSE; |
| 5bd4f169 AM |
9775 | } |
| 9776 | ||
| eea6121a | 9777 | if (htab->plt != NULL && htab->plt->size != 0) |
| 5bd4f169 | 9778 | { |
| dc810e39 AM |
9779 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 9780 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 9781 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
9782 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 9783 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 9784 | return FALSE; |
| 5bd4f169 AM |
9785 | } |
| 9786 | ||
| ee67d69a | 9787 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
9788 | { |
| 9789 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 9790 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 9791 | return FALSE; |
| 19397422 AM |
9792 | } |
| 9793 | ||
| a7f2871e AM |
9794 | if (!htab->no_tls_get_addr_opt |
| 9795 | && htab->tls_get_addr_fd != NULL | |
| 9796 | && htab->tls_get_addr_fd->elf.plt.plist != NULL | |
| 9797 | && !add_dynamic_entry (DT_PPC64_TLSOPT, 0)) | |
| 9798 | return FALSE; | |
| 9799 | ||
| 5bd4f169 AM |
9800 | if (relocs) |
| 9801 | { | |
| dc810e39 AM |
9802 | if (!add_dynamic_entry (DT_RELA, 0) |
| 9803 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 9804 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 9805 | return FALSE; |
| 5bd4f169 | 9806 | |
| 65f38f15 AM |
9807 | /* If any dynamic relocs apply to a read-only section, |
| 9808 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 9809 | if ((info->flags & DF_TEXTREL) == 0) |
| 4ce794b7 | 9810 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
| 5bd4f169 | 9811 | |
| 65f38f15 | 9812 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 9813 | { |
| 65f38f15 | 9814 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 9815 | return FALSE; |
| 5bd4f169 | 9816 | } |
| 5bd4f169 | 9817 | } |
| 5bd4f169 | 9818 | } |
| 65f38f15 | 9819 | #undef add_dynamic_entry |
| 5bd4f169 | 9820 | |
| b34976b6 | 9821 | return TRUE; |
| 5bd4f169 AM |
9822 | } |
| 9823 | ||
| 721956f4 | 9824 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 9825 | |
| 4ce794b7 AM |
9826 | static inline enum ppc_stub_type |
| 9827 | ppc_type_of_stub (asection *input_sec, | |
| 9828 | const Elf_Internal_Rela *rel, | |
| 9829 | struct ppc_link_hash_entry **hash, | |
| e054468f | 9830 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
9831 | bfd_vma destination, |
| 9832 | unsigned long local_off) | |
| 5bd4f169 | 9833 | { |
| 721956f4 AM |
9834 | struct ppc_link_hash_entry *h = *hash; |
| 9835 | bfd_vma location; | |
| 9836 | bfd_vma branch_offset; | |
| 9837 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 9838 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 9839 | |
| 721956f4 AM |
9840 | if (h != NULL) |
| 9841 | { | |
| e054468f | 9842 | struct plt_entry *ent; |
| 7fe2b9a6 | 9843 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
9844 | if (h->oh != NULL |
| 9845 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
9846 | { |
| 9847 | fdh = ppc_follow_link (h->oh); | |
| 9848 | *hash = fdh; | |
| 9849 | } | |
| 8387904d | 9850 | |
| e054468f AM |
9851 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 9852 | if (ent->addend == rel->r_addend | |
| 9853 | && ent->plt.offset != (bfd_vma) -1) | |
| 9854 | { | |
| e054468f AM |
9855 | *plt_ent = ent; |
| 9856 | return ppc_stub_plt_call; | |
| 9857 | } | |
| 5bd4f169 | 9858 | |
| 7fe2b9a6 AM |
9859 | /* Here, we know we don't have a plt entry. If we don't have a |
| 9860 | either a defined function descriptor or a defined entry symbol | |
| 9861 | in a regular object file, then it is pointless trying to make | |
| 9862 | any other type of stub. */ | |
| 854b41e7 AM |
9863 | if (!is_static_defined (&fdh->elf) |
| 9864 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 9865 | return ppc_stub_none; |
| 5d1634d7 | 9866 | } |
| e054468f AM |
9867 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 9868 | { | |
| 9869 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 9870 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 9871 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 9872 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9873 | ||
| 9874 | if (local_plt[r_symndx] != NULL) | |
| 9875 | { | |
| 9876 | struct plt_entry *ent; | |
| 9877 | ||
| 9878 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 9879 | if (ent->addend == rel->r_addend | |
| 9880 | && ent->plt.offset != (bfd_vma) -1) | |
| 9881 | { | |
| 9882 | *plt_ent = ent; | |
| 9883 | return ppc_stub_plt_call; | |
| 9884 | } | |
| 9885 | } | |
| 9886 | } | |
| 5d1634d7 | 9887 | |
| 721956f4 AM |
9888 | /* Determine where the call point is. */ |
| 9889 | location = (input_sec->output_offset | |
| 9890 | + input_sec->output_section->vma | |
| 9891 | + rel->r_offset); | |
| 5d1634d7 | 9892 | |
| 721956f4 AM |
9893 | branch_offset = destination - location; |
| 9894 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 9895 | |
| 721956f4 AM |
9896 | /* Determine if a long branch stub is needed. */ |
| 9897 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 9898 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 9899 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 9900 | |
| 6911b7dc | 9901 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
9902 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 9903 | is needed later. */ | |
| 9904 | return ppc_stub_long_branch; | |
| 5d1634d7 | 9905 | |
| 721956f4 | 9906 | return ppc_stub_none; |
| 5d1634d7 AM |
9907 | } |
| 9908 | ||
| 794e51c0 AM |
9909 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 9910 | to update a plt entry in one thread and have another thread see a | |
| 9911 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 9912 | barrier in the call stub. One solution is to make the load of the | |
| 9913 | toc word seem to appear to depend on the load of the function entry | |
| 9914 | word. Another solution is to test for r2 being zero, and branch to | |
| 9915 | the appropriate glink entry if so. | |
| 9916 | ||
| 9917 | . fake dep barrier compare | |
| 71a39c98 AM |
9918 | . ld 12,xxx(2) ld 12,xxx(2) |
| 9919 | . mtctr 12 mtctr 12 | |
| 9920 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
9921 | . add 2,2,11 cmpldi 2,0 |
| 9922 | . ld 2,xxx+8(2) bnectr+ | |
| 9923 | . bctr b <glink_entry> | |
| 9924 | ||
| 9925 | The solution involving the compare turns out to be faster, so | |
| 9926 | that's what we use unless the branch won't reach. */ | |
| 9927 | ||
| 9928 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 9929 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 9930 | |
| 5d1634d7 AM |
9931 | #define PPC_LO(v) ((v) & 0xffff) |
| 9932 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 9933 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 9934 | ||
| 794e51c0 AM |
9935 | static inline unsigned int |
| 9936 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 9937 | struct ppc_stub_hash_entry *stub_entry, | |
| 9938 | bfd_vma off) | |
| 9939 | { | |
| 9940 | unsigned size = PLT_CALL_STUB_SIZE; | |
| 9941 | ||
| 9942 | if (!(ALWAYS_EMIT_R2SAVE | |
| 9943 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 9944 | size -= 4; | |
| 9945 | if (!htab->plt_static_chain) | |
| 9946 | size -= 4; | |
| 9947 | if (htab->plt_thread_safe) | |
| 9948 | size += 8; | |
| 9949 | if (PPC_HA (off) == 0) | |
| 9950 | size -= 4; | |
| 9951 | if (PPC_HA (off + 8 + 8 * htab->plt_static_chain) != PPC_HA (off)) | |
| 9952 | size += 4; | |
| 9953 | if (stub_entry->h != NULL | |
| 9954 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 9955 | || stub_entry->h == htab->tls_get_addr) | |
| 9956 | && !htab->no_tls_get_addr_opt) | |
| 9957 | size += 13 * 4; | |
| 9958 | return size; | |
| 9959 | } | |
| 9960 | ||
| 9961 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 9962 | then return the padding needed to do so. */ | |
| 9963 | static inline unsigned int | |
| 9964 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 9965 | struct ppc_stub_hash_entry *stub_entry, | |
| 9966 | bfd_vma plt_off) | |
| 9967 | { | |
| 9968 | int stub_align = 1 << htab->plt_stub_align; | |
| 9969 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); | |
| 9970 | bfd_vma stub_off = stub_entry->stub_sec->size; | |
| 9971 | ||
| 9972 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| 9973 | > (stub_size & -stub_align)) | |
| 9974 | return stub_align - (stub_off & (stub_align - 1)); | |
| 9975 | return 0; | |
| 9976 | } | |
| 9977 | ||
| 9978 | /* Build a .plt call stub. */ | |
| 9979 | ||
| 9980 | static inline bfd_byte * | |
| 9981 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 9982 | struct ppc_stub_hash_entry *stub_entry, | |
| 9983 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 9984 | { | |
| 9985 | bfd *obfd = htab->stub_bfd; | |
| 9986 | bfd_boolean plt_static_chain = htab->plt_static_chain; | |
| 9987 | bfd_boolean plt_thread_safe = htab->plt_thread_safe; | |
| 9988 | bfd_boolean use_fake_dep = plt_thread_safe; | |
| 9989 | bfd_vma cmp_branch_off = 0; | |
| 9990 | ||
| 9991 | if (!ALWAYS_USE_FAKE_DEP | |
| 9992 | && plt_thread_safe | |
| 9993 | && !(stub_entry->h != NULL | |
| 9994 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 9995 | || stub_entry->h == htab->tls_get_addr) | |
| 9996 | && !htab->no_tls_get_addr_opt)) | |
| 9997 | { | |
| 9998 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| 9999 | bfd_vma pltindex = (pltoff - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE; | |
| 10000 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; | |
| 10001 | bfd_vma to, from; | |
| 10002 | ||
| 68d62958 AM |
10003 | if (pltindex > 32768) |
| 10004 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10005 | to = (glinkoff |
| 10006 | + htab->glink->output_offset | |
| 10007 | + htab->glink->output_section->vma); | |
| 10008 | from = (p - stub_entry->stub_sec->contents | |
| 10009 | + 4 * (ALWAYS_EMIT_R2SAVE | |
| 10010 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10011 | + 4 * (PPC_HA (offset) != 0) | |
| 10012 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10013 | != PPC_HA (offset)) | |
| 10014 | + 4 * (plt_static_chain != 0) | |
| 10015 | + 20 | |
| 10016 | + stub_entry->stub_sec->output_offset | |
| 10017 | + stub_entry->stub_sec->output_section->vma); | |
| 10018 | cmp_branch_off = to - from; | |
| 10019 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10020 | } | |
| 10021 | ||
| ac2df442 AM |
10022 | if (PPC_HA (offset) != 0) |
| 10023 | { | |
| 176a0d42 AM |
10024 | if (r != NULL) |
| 10025 | { | |
| 794e51c0 AM |
10026 | if (ALWAYS_EMIT_R2SAVE |
| 10027 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10028 | r[0].r_offset += 4; | |
| 176a0d42 | 10029 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10030 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10031 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10032 | r[1].r_addend = r[0].r_addend; | |
| c7131b65 | 10033 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| 176a0d42 AM |
10034 | { |
| 10035 | r[2].r_offset = r[1].r_offset + 4; | |
| 10036 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10037 | r[2].r_addend = r[0].r_addend; | |
| 10038 | } | |
| 10039 | else | |
| 10040 | { | |
| 794e51c0 | 10041 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; |
| 176a0d42 AM |
10042 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10043 | r[2].r_addend = r[0].r_addend + 8; | |
| c7131b65 AM |
10044 | if (plt_static_chain) |
| 10045 | { | |
| 10046 | r[3].r_offset = r[2].r_offset + 4; | |
| 10047 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10048 | r[3].r_addend = r[0].r_addend + 16; | |
| 10049 | } | |
| 176a0d42 AM |
10050 | } |
| 10051 | } | |
| 794e51c0 AM |
10052 | if (ALWAYS_EMIT_R2SAVE |
| 10053 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10054 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; | |
| 71a39c98 AM |
10055 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; |
| 10056 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 9df0ef5f | 10057 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| ac2df442 | 10058 | { |
| 71a39c98 | 10059 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10060 | offset = 0; |
| 10061 | } | |
| 71a39c98 | 10062 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| 794e51c0 AM |
10063 | if (use_fake_dep) |
| 10064 | { | |
| 71a39c98 AM |
10065 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; |
| 10066 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 794e51c0 | 10067 | } |
| 71a39c98 | 10068 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; |
| 9df0ef5f | 10069 | if (plt_static_chain) |
| 71a39c98 | 10070 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; |
| ac2df442 AM |
10071 | } |
| 10072 | else | |
| 10073 | { | |
| 176a0d42 AM |
10074 | if (r != NULL) |
| 10075 | { | |
| 794e51c0 AM |
10076 | if (ALWAYS_EMIT_R2SAVE |
| 10077 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10078 | r[0].r_offset += 4; | |
| 176a0d42 | 10079 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| c7131b65 | 10080 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| 176a0d42 AM |
10081 | { |
| 10082 | r[1].r_offset = r[0].r_offset + 4; | |
| 10083 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10084 | r[1].r_addend = r[0].r_addend; | |
| 10085 | } | |
| 10086 | else | |
| 10087 | { | |
| 794e51c0 | 10088 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; |
| 176a0d42 | 10089 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| c7131b65 AM |
10090 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; |
| 10091 | if (plt_static_chain) | |
| 10092 | { | |
| 10093 | r[2].r_offset = r[1].r_offset + 4; | |
| 10094 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10095 | r[2].r_addend = r[0].r_addend + 8; | |
| 10096 | } | |
| 176a0d42 AM |
10097 | } |
| 10098 | } | |
| 794e51c0 AM |
10099 | if (ALWAYS_EMIT_R2SAVE |
| 10100 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10101 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; | |
| 71a39c98 | 10102 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| 9df0ef5f | 10103 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| ac2df442 AM |
10104 | { |
| 10105 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10106 | offset = 0; | |
| 10107 | } | |
| 71a39c98 | 10108 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| 794e51c0 AM |
10109 | if (use_fake_dep) |
| 10110 | { | |
| 71a39c98 | 10111 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; |
| 794e51c0 AM |
10112 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; |
| 10113 | } | |
| 9df0ef5f AM |
10114 | if (plt_static_chain) |
| 10115 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| ac2df442 | 10116 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; |
| ac2df442 | 10117 | } |
| 794e51c0 AM |
10118 | if (plt_thread_safe && !use_fake_dep) |
| 10119 | { | |
| 10120 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10121 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10122 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10123 | } |
| 10124 | else | |
| 10125 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10126 | return p; |
| 10127 | } | |
| 10128 | ||
| a7f2871e AM |
10129 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10130 | ||
| 10131 | #define LD_R11_0R3 0xe9630000 | |
| 10132 | #define LD_R12_0R3 0xe9830000 | |
| 10133 | #define MR_R0_R3 0x7c601b78 | |
| 10134 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10135 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10136 | #define BEQLR 0x4d820020 | |
| 10137 | #define MR_R3_R0 0x7c030378 | |
| 10138 | #define MFLR_R11 0x7d6802a6 | |
| 10139 | #define STD_R11_0R1 0xf9610000 | |
| 10140 | #define BCTRL 0x4e800421 | |
| 10141 | #define LD_R11_0R1 0xe9610000 | |
| 10142 | #define LD_R2_0R1 0xe8410000 | |
| 10143 | #define MTLR_R11 0x7d6803a6 | |
| 10144 | ||
| 10145 | static inline bfd_byte * | |
| 794e51c0 AM |
10146 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10147 | struct ppc_stub_hash_entry *stub_entry, | |
| 10148 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10149 | { |
| 794e51c0 AM |
10150 | bfd *obfd = htab->stub_bfd; |
| 10151 | ||
| a7f2871e AM |
10152 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10153 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10154 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10155 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10156 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10157 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10158 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10159 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| 10160 | bfd_put_32 (obfd, STD_R11_0R1 + 32, p), p += 4; | |
| 10161 | ||
| 10162 | if (r != NULL) | |
| 10163 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10164 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10165 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10166 | ||
| 10167 | bfd_put_32 (obfd, LD_R11_0R1 + 32, p), p += 4; | |
| 10168 | bfd_put_32 (obfd, LD_R2_0R1 + 40, p), p += 4; | |
| 10169 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; | |
| 10170 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10171 | ||
| 10172 | return p; | |
| 10173 | } | |
| 10174 | ||
| 176a0d42 AM |
10175 | static Elf_Internal_Rela * |
| 10176 | get_relocs (asection *sec, int count) | |
| 10177 | { | |
| 10178 | Elf_Internal_Rela *relocs; | |
| 10179 | struct bfd_elf_section_data *elfsec_data; | |
| 10180 | ||
| 10181 | elfsec_data = elf_section_data (sec); | |
| 10182 | relocs = elfsec_data->relocs; | |
| 10183 | if (relocs == NULL) | |
| 10184 | { | |
| 10185 | bfd_size_type relsize; | |
| 10186 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10187 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10188 | if (relocs == NULL) | |
| 10189 | return NULL; | |
| 10190 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10191 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10192 | sizeof (Elf_Internal_Shdr)); | |
| 10193 | if (elfsec_data->rela.hdr == NULL) | |
| 10194 | return NULL; | |
| 10195 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10196 | * sizeof (Elf64_External_Rela)); | |
| 10197 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10198 | sec->reloc_count = 0; |
| 10199 | } | |
| 10200 | relocs += sec->reloc_count; | |
| 10201 | sec->reloc_count += count; | |
| 10202 | return relocs; | |
| 10203 | } | |
| 10204 | ||
| aa374f67 | 10205 | static bfd_vma |
| 25f53a85 | 10206 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10207 | struct ppc_stub_hash_entry *stub_entry) |
| 10208 | { | |
| 25f53a85 | 10209 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| aa374f67 AM |
10210 | bfd_vma r2off = htab->stub_group[stub_entry->target_section->id].toc_off; |
| 10211 | ||
| 10212 | if (r2off == 0) | |
| 10213 | { | |
| 10214 | /* Support linking -R objects. Get the toc pointer from the | |
| 10215 | opd entry. */ | |
| 10216 | char buf[8]; | |
| 10217 | asection *opd = stub_entry->h->elf.root.u.def.section; | |
| 10218 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10219 | ||
| 10220 | if (strcmp (opd->name, ".opd") != 0 | |
| 10221 | || opd->reloc_count != 0) | |
| 10222 | { | |
| bc30df16 | 10223 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10224 | stub_entry->h->elf.root.root.string); |
| aa374f67 AM |
10225 | bfd_set_error (bfd_error_bad_value); |
| 10226 | return 0; | |
| 10227 | } | |
| 10228 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| 10229 | return 0; | |
| 10230 | r2off = bfd_get_64 (opd->owner, buf); | |
| 25f53a85 | 10231 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 AM |
10232 | } |
| 10233 | r2off -= htab->stub_group[stub_entry->id_sec->id].toc_off; | |
| 10234 | return r2off; | |
| 10235 | } | |
| 10236 | ||
| b34976b6 | 10237 | static bfd_boolean |
| 4ce794b7 | 10238 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10239 | { |
| 721956f4 AM |
10240 | struct ppc_stub_hash_entry *stub_entry; |
| 10241 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10242 | struct bfd_link_info *info; |
| 10243 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10244 | bfd_byte *loc; |
| 10245 | bfd_byte *p; | |
| ee75fd95 | 10246 | bfd_vma dest, off; |
| 721956f4 | 10247 | int size; |
| 176a0d42 | 10248 | Elf_Internal_Rela *r; |
| e054468f | 10249 | asection *plt; |
| 5d1634d7 | 10250 | |
| 721956f4 AM |
10251 | /* Massage our args to the form they really have. */ |
| 10252 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10253 | info = in_arg; |
| 5d1634d7 | 10254 | |
| 5d1634d7 | 10255 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10256 | if (htab == NULL) |
| 10257 | return FALSE; | |
| 5d1634d7 | 10258 | |
| 721956f4 | 10259 | /* Make a note of the offset within the stubs for this entry. */ |
| eea6121a | 10260 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
| 97b639ba | 10261 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; |
| 721956f4 | 10262 | |
| 4ce794b7 | 10263 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10264 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10265 | { |
| 721956f4 | 10266 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10267 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10268 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10269 | dest = (stub_entry->target_value |
| 10270 | + stub_entry->target_section->output_offset | |
| 10271 | + stub_entry->target_section->output_section->vma); | |
| 10272 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10273 | off = dest; | |
| 5d1634d7 | 10274 | |
| 721956f4 AM |
10275 | /* And this is where we are coming from. */ |
| 10276 | off -= (stub_entry->stub_offset | |
| 97b639ba AM |
10277 | + stub_entry->stub_sec->output_offset |
| 10278 | + stub_entry->stub_sec->output_section->vma); | |
| e86ce104 | 10279 | |
| ac2df442 AM |
10280 | size = 4; |
| 10281 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10282 | { |
| 25f53a85 | 10283 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10284 | |
| aa374f67 AM |
10285 | if (r2off == 0) |
| 10286 | { | |
| 10287 | htab->stub_error = TRUE; | |
| 10288 | return FALSE; | |
| 10289 | } | |
| 97b639ba | 10290 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
| ad8e1ba5 | 10291 | loc += 4; |
| ac2df442 AM |
10292 | size = 12; |
| 10293 | if (PPC_HA (r2off) != 0) | |
| 10294 | { | |
| 10295 | size = 16; | |
| 10296 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 10297 | loc += 4; | |
| 10298 | } | |
| 97b639ba | 10299 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
| ad8e1ba5 | 10300 | loc += 4; |
| ac2df442 | 10301 | off -= size - 4; |
| ad8e1ba5 | 10302 | } |
| 97b639ba | 10303 | bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10304 | |
| 5c3dead3 AM |
10305 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10306 | { | |
| bc30df16 AM |
10307 | info->callbacks->einfo |
| 10308 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10309 | stub_entry->root.string); | |
| 5c3dead3 AM |
10310 | htab->stub_error = TRUE; |
| 10311 | return FALSE; | |
| 10312 | } | |
| ee75fd95 AM |
10313 | |
| 10314 | if (info->emitrelocations) | |
| 10315 | { | |
| 176a0d42 AM |
10316 | r = get_relocs (stub_entry->stub_sec, 1); |
| 10317 | if (r == NULL) | |
| 10318 | return FALSE; | |
| ee75fd95 AM |
10319 | r->r_offset = loc - stub_entry->stub_sec->contents; |
| 10320 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); | |
| 10321 | r->r_addend = dest; | |
| 10322 | if (stub_entry->h != NULL) | |
| 10323 | { | |
| 10324 | struct elf_link_hash_entry **hashes; | |
| 10325 | unsigned long symndx; | |
| 10326 | struct ppc_link_hash_entry *h; | |
| 10327 | ||
| 10328 | hashes = elf_sym_hashes (htab->stub_bfd); | |
| 10329 | if (hashes == NULL) | |
| 10330 | { | |
| 10331 | bfd_size_type hsize; | |
| 10332 | ||
| 10333 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| 10334 | hashes = bfd_zalloc (htab->stub_bfd, hsize); | |
| 10335 | if (hashes == NULL) | |
| 10336 | return FALSE; | |
| 10337 | elf_sym_hashes (htab->stub_bfd) = hashes; | |
| 10338 | htab->stub_globals = 1; | |
| 10339 | } | |
| 10340 | symndx = htab->stub_globals++; | |
| 10341 | h = stub_entry->h; | |
| 10342 | hashes[symndx] = &h->elf; | |
| 10343 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10344 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10345 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10346 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10347 | /* H is an opd symbol. The addend must be zero. */ | |
| 10348 | r->r_addend = 0; | |
| 10349 | else | |
| 10350 | { | |
| 10351 | off = (h->elf.root.u.def.value | |
| 10352 | + h->elf.root.u.def.section->output_offset | |
| 10353 | + h->elf.root.u.def.section->output_section->vma); | |
| 10354 | r->r_addend -= off; | |
| 10355 | } | |
| 10356 | } | |
| 10357 | } | |
| 721956f4 | 10358 | break; |
| e86ce104 | 10359 | |
| 721956f4 | 10360 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10361 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10362 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10363 | stub_entry->root.string + 9, | |
| b34976b6 | 10364 | FALSE, FALSE); |
| 721956f4 AM |
10365 | if (br_entry == NULL) |
| 10366 | { | |
| 8de848d8 | 10367 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10368 | stub_entry->root.string); |
| b34976b6 AM |
10369 | htab->stub_error = TRUE; |
| 10370 | return FALSE; | |
| 721956f4 AM |
10371 | } |
| 10372 | ||
| 176a0d42 AM |
10373 | dest = (stub_entry->target_value |
| 10374 | + stub_entry->target_section->output_offset | |
| 10375 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10376 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10377 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10378 | |
| 176a0d42 | 10379 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10380 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10381 | |
| f94498ff | 10382 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10383 | { |
| f94498ff | 10384 | br_entry->iter = 0; |
| 84f5d08e | 10385 | |
| f94498ff | 10386 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10387 | { |
| f94498ff AM |
10388 | /* Create a reloc for the branch lookup table entry. */ |
| 10389 | Elf_Internal_Rela rela; | |
| 10390 | bfd_byte *rl; | |
| 10391 | ||
| 10392 | rela.r_offset = (br_entry->offset | |
| 10393 | + htab->brlt->output_offset | |
| 10394 | + htab->brlt->output_section->vma); | |
| 10395 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10396 | rela.r_addend = dest; |
| f94498ff AM |
10397 | |
| 10398 | rl = htab->relbrlt->contents; | |
| 10399 | rl += (htab->relbrlt->reloc_count++ | |
| 10400 | * sizeof (Elf64_External_Rela)); | |
| 10401 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10402 | } | |
| 10403 | else if (info->emitrelocations) | |
| 10404 | { | |
| 176a0d42 AM |
10405 | r = get_relocs (htab->brlt, 1); |
| 10406 | if (r == NULL) | |
| 10407 | return FALSE; | |
| 10408 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10409 | normal reloc processing. Symbols and offsets are not | |
| 10410 | translated from input file to output file form, so | |
| 10411 | set up the offset per the output file. */ | |
| f94498ff AM |
10412 | r->r_offset = (br_entry->offset |
| 10413 | + htab->brlt->output_offset | |
| 10414 | + htab->brlt->output_section->vma); | |
| 10415 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10416 | r->r_addend = dest; |
| 84f5d08e | 10417 | } |
| 84f5d08e | 10418 | } |
| 721956f4 | 10419 | |
| 176a0d42 AM |
10420 | dest = (br_entry->offset |
| 10421 | + htab->brlt->output_offset | |
| 10422 | + htab->brlt->output_section->vma); | |
| 10423 | ||
| 10424 | off = (dest | |
| 4ce794b7 | 10425 | - elf_gp (htab->brlt->output_section->owner) |
| ad8e1ba5 | 10426 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10427 | |
| ad8e1ba5 | 10428 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10429 | { |
| 25f53a85 | 10430 | info->callbacks->einfo |
| bc30df16 | 10431 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10432 | stub_entry->root.string); |
| 5d1634d7 | 10433 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10434 | htab->stub_error = TRUE; |
| 10435 | return FALSE; | |
| 5d1634d7 | 10436 | } |
| 41bd81ab | 10437 | |
| 176a0d42 AM |
10438 | if (info->emitrelocations) |
| 10439 | { | |
| 10440 | r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0)); | |
| 10441 | if (r == NULL) | |
| 10442 | return FALSE; | |
| 10443 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10444 | if (bfd_big_endian (info->output_bfd)) |
| 10445 | r[0].r_offset += 2; | |
| 176a0d42 AM |
10446 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 10447 | r[0].r_offset += 4; | |
| 10448 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10449 | r[0].r_addend = dest; | |
| 10450 | if (PPC_HA (off) != 0) | |
| 10451 | { | |
| 10452 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10453 | r[1].r_offset = r[0].r_offset + 4; | |
| 10454 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10455 | r[1].r_addend = r[0].r_addend; | |
| 10456 | } | |
| 10457 | } | |
| 10458 | ||
| ad8e1ba5 AM |
10459 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10460 | { | |
| 176a0d42 | 10461 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10462 | { |
| 10463 | size = 16; | |
| 71a39c98 | 10464 | bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc); |
| ac2df442 | 10465 | loc += 4; |
| 71a39c98 | 10466 | bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc); |
| ac2df442 AM |
10467 | } |
| 10468 | else | |
| 10469 | { | |
| 10470 | size = 12; | |
| 71a39c98 | 10471 | bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 | 10472 | } |
| ad8e1ba5 AM |
10473 | } |
| 10474 | else | |
| 10475 | { | |
| 25f53a85 | 10476 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 AM |
10477 | |
| 10478 | if (r2off == 0) | |
| 10479 | { | |
| 10480 | htab->stub_error = TRUE; | |
| 10481 | return FALSE; | |
| 10482 | } | |
| ad8e1ba5 | 10483 | |
| 97b639ba | 10484 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
| ad8e1ba5 | 10485 | loc += 4; |
| ac2df442 | 10486 | size = 20; |
| 176a0d42 | 10487 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10488 | { |
| 10489 | size += 4; | |
| 71a39c98 | 10490 | bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc); |
| ac2df442 | 10491 | loc += 4; |
| 71a39c98 | 10492 | bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc); |
| ac2df442 AM |
10493 | loc += 4; |
| 10494 | } | |
| 10495 | else | |
| 10496 | { | |
| 71a39c98 | 10497 | bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10498 | loc += 4; |
| 10499 | } | |
| 10500 | ||
| 10501 | if (PPC_HA (r2off) != 0) | |
| 10502 | { | |
| 10503 | size += 4; | |
| 10504 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 10505 | loc += 4; | |
| 10506 | } | |
| 97b639ba | 10507 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
| ad8e1ba5 AM |
10508 | } |
| 10509 | loc += 4; | |
| 71a39c98 | 10510 | bfd_put_32 (htab->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10511 | loc += 4; |
| 97b639ba | 10512 | bfd_put_32 (htab->stub_bfd, BCTR, loc); |
| 721956f4 | 10513 | break; |
| 5d1634d7 | 10514 | |
| 721956f4 | 10515 | case ppc_stub_plt_call: |
| 794e51c0 | 10516 | case ppc_stub_plt_call_r2save: |
| e054468f | 10517 | if (stub_entry->h != NULL |
| b31867b6 AM |
10518 | && stub_entry->h->is_func_descriptor |
| 10519 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10520 | { |
| b31867b6 AM |
10521 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10522 | ||
| 10523 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 10524 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. | |
| 10525 | FIXME: We used to define the symbol on one of the call | |
| 10526 | stubs instead, which is why we test symbol section id | |
| 10527 | against htab->top_id in various places. Likely all | |
| 10528 | these checks could now disappear. */ | |
| 10529 | if (fh->elf.root.type == bfd_link_hash_undefined) | |
| 10530 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10531 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10532 | fh->was_undefined = 0; | |
| c862ae31 AM |
10533 | } |
| 10534 | ||
| 721956f4 | 10535 | /* Now build the stub. */ |
| e054468f | 10536 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10537 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10538 | abort (); |
| 10539 | ||
| e054468f | 10540 | plt = htab->plt; |
| 25f23106 AM |
10541 | if (!htab->elf.dynamic_sections_created |
| 10542 | || stub_entry->h == NULL | |
| 10543 | || stub_entry->h->elf.dynindx == -1) | |
| e054468f AM |
10544 | plt = htab->iplt; |
| 10545 | ||
| 10546 | dest += plt->output_offset + plt->output_section->vma; | |
| 10547 | ||
| 10548 | if (stub_entry->h == NULL | |
| 10549 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 10550 | { | |
| 10551 | Elf_Internal_Rela rela; | |
| 10552 | bfd_byte *rl; | |
| 10553 | ||
| 10554 | rela.r_offset = dest; | |
| ee67d69a AM |
10555 | if (htab->opd_abi) |
| 10556 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 10557 | else | |
| 10558 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
10559 | rela.r_addend = (stub_entry->target_value |
| 10560 | + stub_entry->target_section->output_offset | |
| 10561 | + stub_entry->target_section->output_section->vma); | |
| 10562 | ||
| 25f23106 AM |
10563 | rl = (htab->reliplt->contents |
| 10564 | + (htab->reliplt->reloc_count++ | |
| 10565 | * sizeof (Elf64_External_Rela))); | |
| 10566 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
10567 | stub_entry->plt_ent->plt.offset |= 1; |
| 10568 | } | |
| 176a0d42 AM |
10569 | |
| 10570 | off = (dest | |
| e054468f | 10571 | - elf_gp (plt->output_section->owner) |
| 176a0d42 | 10572 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10573 | |
| ad8e1ba5 | 10574 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 10575 | { |
| 25f53a85 | 10576 | info->callbacks->einfo |
| bc30df16 | 10577 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
10578 | stub_entry->h != NULL |
| 10579 | ? stub_entry->h->elf.root.root.string | |
| 10580 | : "<local sym>"); | |
| 721956f4 | 10581 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10582 | htab->stub_error = TRUE; |
| 10583 | return FALSE; | |
| 721956f4 AM |
10584 | } |
| 10585 | ||
| 794e51c0 AM |
10586 | if (htab->plt_stub_align != 0) |
| 10587 | { | |
| 10588 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 10589 | ||
| 10590 | stub_entry->stub_sec->size += pad; | |
| 10591 | stub_entry->stub_offset = stub_entry->stub_sec->size; | |
| 10592 | loc += pad; | |
| 10593 | } | |
| 10594 | ||
| 176a0d42 AM |
10595 | r = NULL; |
| 10596 | if (info->emitrelocations) | |
| 10597 | { | |
| 10598 | r = get_relocs (stub_entry->stub_sec, | |
| c7131b65 AM |
10599 | (2 |
| 10600 | + (PPC_HA (off) != 0) | |
| 10601 | + (htab->plt_static_chain | |
| 10602 | && PPC_HA (off + 16) == PPC_HA (off)))); | |
| 176a0d42 AM |
10603 | if (r == NULL) |
| 10604 | return FALSE; | |
| 10605 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10606 | if (bfd_big_endian (info->output_bfd)) |
| 10607 | r[0].r_offset += 2; | |
| 176a0d42 AM |
10608 | r[0].r_addend = dest; |
| 10609 | } | |
| a7f2871e AM |
10610 | if (stub_entry->h != NULL |
| 10611 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10612 | || stub_entry->h == htab->tls_get_addr) | |
| 10613 | && !htab->no_tls_get_addr_opt) | |
| 794e51c0 | 10614 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 10615 | else |
| 794e51c0 | 10616 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
10617 | size = p - loc; |
| 10618 | break; | |
| 10619 | ||
| 10620 | default: | |
| 10621 | BFD_FAIL (); | |
| b34976b6 | 10622 | return FALSE; |
| 721956f4 AM |
10623 | } |
| 10624 | ||
| eea6121a | 10625 | stub_entry->stub_sec->size += size; |
| 97b639ba | 10626 | |
| ee75fd95 | 10627 | if (htab->emit_stub_syms) |
| 97b639ba AM |
10628 | { |
| 10629 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
10630 | size_t len1, len2; |
| 10631 | char *name; | |
| 10632 | const char *const stub_str[] = { "long_branch", | |
| 10633 | "long_branch_r2off", | |
| 10634 | "plt_branch", | |
| 10635 | "plt_branch_r2off", | |
| 794e51c0 | 10636 | "plt_call", |
| ee75fd95 AM |
10637 | "plt_call" }; |
| 10638 | ||
| 10639 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 10640 | len2 = strlen (stub_entry->root.string); | |
| 10641 | name = bfd_malloc (len1 + len2 + 2); | |
| 10642 | if (name == NULL) | |
| 10643 | return FALSE; | |
| 10644 | memcpy (name, stub_entry->root.string, 9); | |
| 10645 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 10646 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 10647 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
10648 | if (h == NULL) |
| 10649 | return FALSE; | |
| 10650 | if (h->root.type == bfd_link_hash_new) | |
| 10651 | { | |
| 10652 | h->root.type = bfd_link_hash_defined; | |
| 10653 | h->root.u.def.section = stub_entry->stub_sec; | |
| 10654 | h->root.u.def.value = stub_entry->stub_offset; | |
| f5385ebf AM |
10655 | h->ref_regular = 1; |
| 10656 | h->def_regular = 1; | |
| 10657 | h->ref_regular_nonweak = 1; | |
| 10658 | h->forced_local = 1; | |
| 10659 | h->non_elf = 0; | |
| 97b639ba AM |
10660 | } |
| 10661 | } | |
| 10662 | ||
| b34976b6 | 10663 | return TRUE; |
| 721956f4 AM |
10664 | } |
| 10665 | ||
| 10666 | /* As above, but don't actually build the stub. Just bump offset so | |
| 10667 | we know stub section sizes, and select plt_branch stubs where | |
| 10668 | long_branch stubs won't do. */ | |
| 10669 | ||
| b34976b6 | 10670 | static bfd_boolean |
| 4ce794b7 | 10671 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
10672 | { |
| 10673 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 10674 | struct bfd_link_info *info; |
| 721956f4 AM |
10675 | struct ppc_link_hash_table *htab; |
| 10676 | bfd_vma off; | |
| 10677 | int size; | |
| 10678 | ||
| 10679 | /* Massage our args to the form they really have. */ | |
| 10680 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
10681 | info = in_arg; |
| 10682 | ||
| 10683 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
10684 | if (htab == NULL) |
| 10685 | return FALSE; | |
| 721956f4 | 10686 | |
| 794e51c0 AM |
10687 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 10688 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 10689 | { |
| e054468f AM |
10690 | asection *plt; |
| 10691 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 10692 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 10693 | abort (); |
| e054468f | 10694 | plt = htab->plt; |
| 25f23106 AM |
10695 | if (!htab->elf.dynamic_sections_created |
| 10696 | || stub_entry->h == NULL | |
| 10697 | || stub_entry->h->elf.dynindx == -1) | |
| e054468f AM |
10698 | plt = htab->iplt; |
| 10699 | off += (plt->output_offset | |
| 10700 | + plt->output_section->vma | |
| 10701 | - elf_gp (plt->output_section->owner) | |
| ad8e1ba5 | 10702 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10703 | |
| 794e51c0 AM |
10704 | size = plt_stub_size (htab, stub_entry, off); |
| 10705 | if (htab->plt_stub_align) | |
| 10706 | size += plt_stub_pad (htab, stub_entry, off); | |
| 176a0d42 AM |
10707 | if (info->emitrelocations) |
| 10708 | { | |
| 10709 | stub_entry->stub_sec->reloc_count | |
| c7131b65 AM |
10710 | += (2 |
| 10711 | + (PPC_HA (off) != 0) | |
| 10712 | + (htab->plt_static_chain | |
| 10713 | && PPC_HA (off + 16) == PPC_HA (off))); | |
| 176a0d42 AM |
10714 | stub_entry->stub_sec->flags |= SEC_RELOC; |
| 10715 | } | |
| 721956f4 AM |
10716 | } |
| 10717 | else | |
| 10718 | { | |
| ad8e1ba5 AM |
10719 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 10720 | variants. */ | |
| ac2df442 | 10721 | bfd_vma r2off = 0; |
| 6911b7dc | 10722 | bfd_vma local_off = 0; |
| ac2df442 | 10723 | |
| 721956f4 AM |
10724 | off = (stub_entry->target_value |
| 10725 | + stub_entry->target_section->output_offset | |
| 10726 | + stub_entry->target_section->output_section->vma); | |
| eea6121a | 10727 | off -= (stub_entry->stub_sec->size |
| 721956f4 AM |
10728 | + stub_entry->stub_sec->output_offset |
| 10729 | + stub_entry->stub_sec->output_section->vma); | |
| 10730 | ||
| ad8e1ba5 AM |
10731 | /* Reset the stub type from the plt variant in case we now |
| 10732 | can reach with a shorter stub. */ | |
| 10733 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 10734 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 10735 | ||
| 10736 | size = 4; | |
| 10737 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 10738 | { | |
| 25f53a85 | 10739 | r2off = get_r2off (info, stub_entry); |
| aa374f67 AM |
10740 | if (r2off == 0) |
| 10741 | { | |
| 10742 | htab->stub_error = TRUE; | |
| 10743 | return FALSE; | |
| 10744 | } | |
| ac2df442 AM |
10745 | size = 12; |
| 10746 | if (PPC_HA (r2off) != 0) | |
| 10747 | size = 16; | |
| 10748 | off -= size - 4; | |
| ad8e1ba5 AM |
10749 | } |
| 10750 | ||
| 6911b7dc AM |
10751 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 10752 | ||
| ad8e1ba5 | 10753 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ |
| 6911b7dc | 10754 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off) |
| 721956f4 AM |
10755 | { |
| 10756 | struct ppc_branch_hash_entry *br_entry; | |
| 10757 | ||
| 10758 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 10759 | stub_entry->root.string + 9, | |
| b34976b6 | 10760 | TRUE, FALSE); |
| 721956f4 AM |
10761 | if (br_entry == NULL) |
| 10762 | { | |
| 8de848d8 | 10763 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 10764 | stub_entry->root.string); |
| b34976b6 AM |
10765 | htab->stub_error = TRUE; |
| 10766 | return FALSE; | |
| 721956f4 AM |
10767 | } |
| 10768 | ||
| 10769 | if (br_entry->iter != htab->stub_iteration) | |
| 10770 | { | |
| 10771 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
10772 | br_entry->offset = htab->brlt->size; |
| 10773 | htab->brlt->size += 8; | |
| 63bc6f6c | 10774 | |
| ee75fd95 | 10775 | if (htab->relbrlt != NULL) |
| eea6121a | 10776 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
10777 | else if (info->emitrelocations) |
| 10778 | { | |
| 10779 | htab->brlt->reloc_count += 1; | |
| 10780 | htab->brlt->flags |= SEC_RELOC; | |
| 10781 | } | |
| 721956f4 | 10782 | } |
| ad8e1ba5 AM |
10783 | |
| 10784 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
10785 | off = (br_entry->offset |
| 10786 | + htab->brlt->output_offset | |
| 10787 | + htab->brlt->output_section->vma | |
| 10788 | - elf_gp (htab->brlt->output_section->owner) | |
| 10789 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
| 10790 | ||
| 176a0d42 AM |
10791 | if (info->emitrelocations) |
| 10792 | { | |
| 10793 | stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0); | |
| 10794 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 10795 | } | |
| 10796 | ||
| ac2df442 AM |
10797 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10798 | { | |
| 10799 | size = 12; | |
| 176a0d42 | 10800 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10801 | size = 16; |
| 10802 | } | |
| 10803 | else | |
| 10804 | { | |
| 10805 | size = 20; | |
| 176a0d42 | 10806 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10807 | size += 4; |
| 10808 | ||
| 10809 | if (PPC_HA (r2off) != 0) | |
| 10810 | size += 4; | |
| 10811 | } | |
| 721956f4 | 10812 | } |
| 84f5d08e AM |
10813 | else if (info->emitrelocations) |
| 10814 | { | |
| 10815 | stub_entry->stub_sec->reloc_count += 1; | |
| 10816 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 10817 | } | |
| 721956f4 AM |
10818 | } |
| 10819 | ||
| eea6121a | 10820 | stub_entry->stub_sec->size += size; |
| b34976b6 | 10821 | return TRUE; |
| 721956f4 AM |
10822 | } |
| 10823 | ||
| 10824 | /* Set up various things so that we can make a list of input sections | |
| 10825 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 10826 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
10827 | |
| 10828 | int | |
| 927be08e AM |
10829 | ppc64_elf_setup_section_lists |
| 10830 | (struct bfd_link_info *info, | |
| 10831 | asection *(*add_stub_section) (const char *, asection *), | |
| 10832 | void (*layout_sections_again) (void)) | |
| 721956f4 AM |
10833 | { |
| 10834 | bfd *input_bfd; | |
| 734b6cf9 | 10835 | int top_id, top_index, id; |
| 721956f4 | 10836 | asection *section; |
| 734b6cf9 | 10837 | asection **input_list; |
| 721956f4 AM |
10838 | bfd_size_type amt; |
| 10839 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 10840 | ||
| 4dfe6ac6 NC |
10841 | if (htab == NULL) |
| 10842 | return -1; | |
| 927be08e AM |
10843 | /* Stash our params away. */ |
| 10844 | htab->add_stub_section = add_stub_section; | |
| 10845 | htab->layout_sections_again = layout_sections_again; | |
| 4c52953f | 10846 | |
| 1e2f5b6e | 10847 | /* Find the top input section id. */ |
| 3d6f9012 | 10848 | for (input_bfd = info->input_bfds, top_id = 3; |
| 721956f4 AM |
10849 | input_bfd != NULL; |
| 10850 | input_bfd = input_bfd->link_next) | |
| 10851 | { | |
| 721956f4 AM |
10852 | for (section = input_bfd->sections; |
| 10853 | section != NULL; | |
| 10854 | section = section->next) | |
| 10855 | { | |
| 10856 | if (top_id < section->id) | |
| 10857 | top_id = section->id; | |
| 10858 | } | |
| 10859 | } | |
| 721956f4 | 10860 | |
| 8f3bab57 | 10861 | htab->top_id = top_id; |
| 721956f4 | 10862 | amt = sizeof (struct map_stub) * (top_id + 1); |
| 4ce794b7 | 10863 | htab->stub_group = bfd_zmalloc (amt); |
| 721956f4 AM |
10864 | if (htab->stub_group == NULL) |
| 10865 | return -1; | |
| 10866 | ||
| 3d6f9012 AM |
10867 | /* Set toc_off for com, und, abs and ind sections. */ |
| 10868 | for (id = 0; id < 3; id++) | |
| 10869 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
| 721956f4 | 10870 | |
| 734b6cf9 AM |
10871 | /* We can't use output_bfd->section_count here to find the top output |
| 10872 | section index as some sections may have been removed, and | |
| 8423293d | 10873 | strip_excluded_output_sections doesn't renumber the indices. */ |
| 927be08e | 10874 | for (section = info->output_bfd->sections, top_index = 0; |
| 734b6cf9 AM |
10875 | section != NULL; |
| 10876 | section = section->next) | |
| 10877 | { | |
| 10878 | if (top_index < section->index) | |
| 10879 | top_index = section->index; | |
| 10880 | } | |
| 10881 | ||
| 10882 | htab->top_index = top_index; | |
| 10883 | amt = sizeof (asection *) * (top_index + 1); | |
| 4ce794b7 | 10884 | input_list = bfd_zmalloc (amt); |
| 734b6cf9 AM |
10885 | htab->input_list = input_list; |
| 10886 | if (input_list == NULL) | |
| 10887 | return -1; | |
| 10888 | ||
| 721956f4 AM |
10889 | return 1; |
| 10890 | } | |
| 10891 | ||
| 927be08e AM |
10892 | /* Set up for first pass at multitoc partitioning. */ |
| 10893 | ||
| 10894 | void | |
| 10895 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 10896 | { | |
| 10897 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 10898 | ||
| 1c865ab2 | 10899 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
10900 | htab->toc_bfd = NULL; |
| 10901 | htab->toc_first_sec = NULL; | |
| 10902 | } | |
| 10903 | ||
| e717da7e AM |
10904 | /* The linker repeatedly calls this function for each TOC input section |
| 10905 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 10906 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 10907 | |
| 927be08e | 10908 | bfd_boolean |
| 4ce794b7 | 10909 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
10910 | { |
| 10911 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 10912 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 10913 | |
| 4dfe6ac6 NC |
10914 | if (htab == NULL) |
| 10915 | return FALSE; | |
| 10916 | ||
| 927be08e | 10917 | if (!htab->second_toc_pass) |
| 4c52953f | 10918 | { |
| 927be08e | 10919 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
10920 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 10921 | ||
| 10922 | if (new_bfd) | |
| bf102f86 AM |
10923 | { |
| 10924 | htab->toc_bfd = isec->owner; | |
| 10925 | htab->toc_first_sec = isec; | |
| 10926 | } | |
| 927be08e | 10927 | |
| bf102f86 AM |
10928 | addr = isec->output_offset + isec->output_section->vma; |
| 10929 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
10930 | limit = 0x80008000; |
| 10931 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 10932 | limit = 0x10000; | |
| 10933 | if (off + isec->size > limit) | |
| bf102f86 AM |
10934 | { |
| 10935 | addr = (htab->toc_first_sec->output_offset | |
| 10936 | + htab->toc_first_sec->output_section->vma); | |
| 10937 | htab->toc_curr = addr; | |
| 10938 | } | |
| 99877b66 | 10939 | |
| 927be08e AM |
10940 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 10941 | for the input section to be the offset relative to the | |
| 10942 | output toc base plus 0x8000. Making the input elf_gp an | |
| 10943 | offset allows us to move the toc as a whole without | |
| 10944 | recalculating input elf_gp. */ | |
| 10945 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 10946 | off += TOC_BASE_OFF; | |
| 10947 | ||
| 10948 | /* Die if someone uses a linker script that doesn't keep input | |
| 10949 | file .toc and .got together. */ | |
| a4fd3de5 AM |
10950 | if (new_bfd |
| 10951 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
10952 | && elf_gp (isec->owner) != off) |
| 10953 | return FALSE; | |
| 10954 | ||
| 10955 | elf_gp (isec->owner) = off; | |
| 10956 | return TRUE; | |
| 4c52953f | 10957 | } |
| 927be08e AM |
10958 | |
| 10959 | /* During the second pass toc_first_sec points to the start of | |
| 10960 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 10961 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 10962 | if (htab->toc_bfd == isec->owner) | |
| 10963 | return TRUE; | |
| 10964 | htab->toc_bfd = isec->owner; | |
| 10965 | ||
| 10966 | if (htab->toc_first_sec == NULL | |
| 10967 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 10968 | { | |
| 10969 | htab->toc_curr = elf_gp (isec->owner); | |
| 10970 | htab->toc_first_sec = isec; | |
| 10971 | } | |
| 10972 | addr = (htab->toc_first_sec->output_offset | |
| 10973 | + htab->toc_first_sec->output_section->vma); | |
| 10974 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 10975 | elf_gp (isec->owner) = off; | |
| 10976 | ||
| 10977 | return TRUE; | |
| ad8e1ba5 AM |
10978 | } |
| 10979 | ||
| 927be08e AM |
10980 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 10981 | symbol H. */ | |
| 10982 | ||
| 10983 | static bfd_boolean | |
| 10984 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 10985 | { | |
| 10986 | if (h->root.type == bfd_link_hash_indirect) | |
| 10987 | return TRUE; | |
| 10988 | ||
| 927be08e AM |
10989 | merge_got_entries (&h->got.glist); |
| 10990 | ||
| 10991 | return TRUE; | |
| 10992 | } | |
| 10993 | ||
| 10994 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 10995 | symbol H. */ | |
| 10996 | ||
| 10997 | static bfd_boolean | |
| 10998 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 10999 | { | |
| 11000 | struct got_entry *gent; | |
| 11001 | ||
| 11002 | if (h->root.type == bfd_link_hash_indirect) | |
| 11003 | return TRUE; | |
| 11004 | ||
| 927be08e AM |
11005 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11006 | if (!gent->is_indirect) | |
| 11007 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11008 | return TRUE; | |
| 11009 | } | |
| 11010 | ||
| 11011 | /* Called on the first multitoc pass after the last call to | |
| 11012 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11013 | entries. */ | |
| 11014 | ||
| 11015 | bfd_boolean | |
| 11016 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11017 | { |
| 11018 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11019 | struct bfd *ibfd, *ibfd2; |
| 11020 | bfd_boolean done_something; | |
| 11021 | ||
| 11022 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11023 | |
| 7865406b AM |
11024 | if (!htab->do_multi_toc) |
| 11025 | return FALSE; | |
| 11026 | ||
| d0fae19d | 11027 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11028 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11029 | ||
| 11030 | /* And tlsld_got. */ | |
| 11031 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11032 | { | |
| 11033 | struct got_entry *ent, *ent2; | |
| 11034 | ||
| 11035 | if (!is_ppc64_elf (ibfd)) | |
| 11036 | continue; | |
| 11037 | ||
| 11038 | ent = ppc64_tlsld_got (ibfd); | |
| 11039 | if (!ent->is_indirect | |
| 11040 | && ent->got.offset != (bfd_vma) -1) | |
| 11041 | { | |
| 11042 | for (ibfd2 = ibfd->link_next; ibfd2 != NULL; ibfd2 = ibfd2->link_next) | |
| 11043 | { | |
| 11044 | if (!is_ppc64_elf (ibfd2)) | |
| 11045 | continue; | |
| 11046 | ||
| 11047 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11048 | if (!ent2->is_indirect | |
| 11049 | && ent2->got.offset != (bfd_vma) -1 | |
| 11050 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11051 | { | |
| 11052 | ent2->is_indirect = TRUE; | |
| 11053 | ent2->got.ent = ent; | |
| 11054 | } | |
| 11055 | } | |
| 11056 | } | |
| 11057 | } | |
| 11058 | ||
| 11059 | /* Zap sizes of got sections. */ | |
| 11060 | htab->reliplt->rawsize = htab->reliplt->size; | |
| 11061 | htab->reliplt->size -= htab->got_reli_size; | |
| 11062 | htab->got_reli_size = 0; | |
| 11063 | ||
| 11064 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11065 | { | |
| 11066 | asection *got, *relgot; | |
| 11067 | ||
| 11068 | if (!is_ppc64_elf (ibfd)) | |
| 11069 | continue; | |
| 11070 | ||
| 11071 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11072 | if (got != NULL) | |
| 11073 | { | |
| 11074 | got->rawsize = got->size; | |
| 11075 | got->size = 0; | |
| 11076 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11077 | relgot->rawsize = relgot->size; | |
| 11078 | relgot->size = 0; | |
| 11079 | } | |
| 11080 | } | |
| 11081 | ||
| 11082 | /* Now reallocate the got, local syms first. We don't need to | |
| 11083 | allocate section contents again since we never increase size. */ | |
| 11084 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11085 | { | |
| 11086 | struct got_entry **lgot_ents; | |
| 11087 | struct got_entry **end_lgot_ents; | |
| 11088 | struct plt_entry **local_plt; | |
| 11089 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11090 | unsigned char *lgot_masks; |
| 927be08e AM |
11091 | bfd_size_type locsymcount; |
| 11092 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11093 | asection *s; |
| 927be08e AM |
11094 | |
| 11095 | if (!is_ppc64_elf (ibfd)) | |
| 11096 | continue; | |
| 11097 | ||
| 11098 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11099 | if (!lgot_ents) | |
| 11100 | continue; | |
| 11101 | ||
| 11102 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11103 | locsymcount = symtab_hdr->sh_info; | |
| 11104 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11105 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11106 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11107 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11108 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11109 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11110 | { | |
| 11111 | struct got_entry *ent; | |
| 11112 | ||
| 11113 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11114 | { |
| 19e08130 AM |
11115 | unsigned int ent_size = 8; |
| 11116 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11117 | ||
| d0fae19d AM |
11118 | ent->got.offset = s->size; |
| 11119 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11120 | { |
| 19e08130 AM |
11121 | ent_size *= 2; |
| 11122 | rel_size *= 2; | |
| 11123 | } | |
| 11124 | s->size += ent_size; | |
| 11125 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11126 | { | |
| 11127 | htab->reliplt->size += rel_size; | |
| 11128 | htab->got_reli_size += rel_size; | |
| 11129 | } | |
| 11130 | else if (info->shared) | |
| 11131 | { | |
| 11132 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11133 | srel->size += rel_size; | |
| d0fae19d AM |
11134 | } |
| 11135 | } | |
| 927be08e AM |
11136 | } |
| 11137 | } | |
| 11138 | ||
| 11139 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11140 | ||
| 11141 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11142 | { | |
| 11143 | struct got_entry *ent; | |
| 11144 | ||
| 11145 | if (!is_ppc64_elf (ibfd)) | |
| 11146 | continue; | |
| 11147 | ||
| 11148 | ent = ppc64_tlsld_got (ibfd); | |
| 11149 | if (!ent->is_indirect | |
| 11150 | && ent->got.offset != (bfd_vma) -1) | |
| 11151 | { | |
| 11152 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11153 | ent->got.offset = s->size; | |
| 11154 | s->size += 16; | |
| 11155 | if (info->shared) | |
| 11156 | { | |
| 11157 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11158 | srel->size += sizeof (Elf64_External_Rela); | |
| 11159 | } | |
| 11160 | } | |
| 11161 | } | |
| 11162 | ||
| 11163 | done_something = htab->reliplt->rawsize != htab->reliplt->size; | |
| 11164 | if (!done_something) | |
| 11165 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11166 | { | |
| 11167 | asection *got; | |
| 11168 | ||
| 11169 | if (!is_ppc64_elf (ibfd)) | |
| 11170 | continue; | |
| 11171 | ||
| 11172 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11173 | if (got != NULL) | |
| 11174 | { | |
| 11175 | done_something = got->rawsize != got->size; | |
| 11176 | if (done_something) | |
| 11177 | break; | |
| 11178 | } | |
| 11179 | } | |
| 11180 | ||
| 11181 | if (done_something) | |
| 11182 | (*htab->layout_sections_again) (); | |
| 11183 | ||
| 11184 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11185 | on input sections. */ | |
| 11186 | htab->toc_bfd = NULL; | |
| 11187 | htab->toc_first_sec = NULL; | |
| 11188 | htab->second_toc_pass = TRUE; | |
| 11189 | return done_something; | |
| 11190 | } | |
| 11191 | ||
| 11192 | /* Called after second pass of multitoc partitioning. */ | |
| 11193 | ||
| 11194 | void | |
| 11195 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11196 | { | |
| 11197 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11198 | ||
| 11199 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11200 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11201 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11202 | } |
| 11203 | ||
| 9b5ecbd0 AM |
11204 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11205 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11206 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11207 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11208 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11209 | for a stub was detected. If called from the top level, a return of | |
| 11210 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11211 | |
| 11212 | static int | |
| 4ce794b7 | 11213 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11214 | { |
| 9b5ecbd0 | 11215 | int ret; |
| 70cc837d AM |
11216 | |
| 11217 | /* Mark this section as checked. */ | |
| 11218 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11219 | |
| 772119ce AM |
11220 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11221 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11222 | return 0; | |
| 11223 | ||
| eea6121a | 11224 | if (isec->size == 0) |
| 082c50f8 AM |
11225 | return 0; |
| 11226 | ||
| 4c52953f AM |
11227 | if (isec->output_section == NULL) |
| 11228 | return 0; | |
| 11229 | ||
| 4c52953f | 11230 | ret = 0; |
| 70cc837d | 11231 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11232 | { |
| 70cc837d AM |
11233 | Elf_Internal_Rela *relstart, *rel; |
| 11234 | Elf_Internal_Sym *local_syms; | |
| 11235 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11236 | |
| 70cc837d AM |
11237 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11238 | info->keep_memory); | |
| 11239 | if (relstart == NULL) | |
| 11240 | return -1; | |
| 90aecf7a | 11241 | |
| 70cc837d AM |
11242 | /* Look for branches to outside of this section. */ |
| 11243 | local_syms = NULL; | |
| 11244 | htab = ppc_hash_table (info); | |
| 11245 | if (htab == NULL) | |
| 11246 | return -1; | |
| 4c52953f | 11247 | |
| 70cc837d | 11248 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11249 | { |
| 70cc837d AM |
11250 | enum elf_ppc64_reloc_type r_type; |
| 11251 | unsigned long r_symndx; | |
| 11252 | struct elf_link_hash_entry *h; | |
| 11253 | struct ppc_link_hash_entry *eh; | |
| 11254 | Elf_Internal_Sym *sym; | |
| 11255 | asection *sym_sec; | |
| 11256 | struct _opd_sec_data *opd; | |
| 11257 | bfd_vma sym_value; | |
| 11258 | bfd_vma dest; | |
| 11259 | ||
| 11260 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11261 | if (r_type != R_PPC64_REL24 | |
| 11262 | && r_type != R_PPC64_REL14 | |
| 11263 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11264 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11265 | continue; | |
| 4c52953f | 11266 | |
| 70cc837d AM |
11267 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11268 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11269 | isec->owner)) | |
| 4c52953f | 11270 | { |
| 70cc837d AM |
11271 | ret = -1; |
| 11272 | break; | |
| 11273 | } | |
| 4c52953f | 11274 | |
| 70cc837d AM |
11275 | /* Calls to dynamic lib functions go through a plt call stub |
| 11276 | that uses r2. */ | |
| 11277 | eh = (struct ppc_link_hash_entry *) h; | |
| 11278 | if (eh != NULL | |
| 11279 | && (eh->elf.plt.plist != NULL | |
| 11280 | || (eh->oh != NULL | |
| 11281 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11282 | { | |
| 11283 | ret = 1; | |
| 11284 | break; | |
| 4c52953f AM |
11285 | } |
| 11286 | ||
| 70cc837d AM |
11287 | if (sym_sec == NULL) |
| 11288 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11289 | continue; |
| 4c52953f | 11290 | |
| 70cc837d AM |
11291 | /* Assume branches to other sections not included in the |
| 11292 | link need stubs too, to cover -R and absolute syms. */ | |
| 11293 | if (sym_sec->output_section == NULL) | |
| 11294 | { | |
| 11295 | ret = 1; | |
| 11296 | break; | |
| 11297 | } | |
| 4c52953f | 11298 | |
| 70cc837d AM |
11299 | if (h == NULL) |
| 11300 | sym_value = sym->st_value; | |
| 11301 | else | |
| 11302 | { | |
| 11303 | if (h->root.type != bfd_link_hash_defined | |
| 11304 | && h->root.type != bfd_link_hash_defweak) | |
| 11305 | abort (); | |
| 11306 | sym_value = h->root.u.def.value; | |
| 11307 | } | |
| 11308 | sym_value += rel->r_addend; | |
| 4c52953f | 11309 | |
| 70cc837d AM |
11310 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11311 | opd = get_opd_info (sym_sec); | |
| 11312 | if (opd != NULL) | |
| 11313 | { | |
| 11314 | if (h == NULL && opd->adjust != NULL) | |
| 11315 | { | |
| 11316 | long adjust; | |
| 4c52953f | 11317 | |
| 70cc837d AM |
11318 | adjust = opd->adjust[sym->st_value / 8]; |
| 11319 | if (adjust == -1) | |
| 11320 | /* Assume deleted functions won't ever be called. */ | |
| 11321 | continue; | |
| 11322 | sym_value += adjust; | |
| 11323 | } | |
| 4c52953f | 11324 | |
| aef36ac1 AM |
11325 | dest = opd_entry_value (sym_sec, sym_value, |
| 11326 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11327 | if (dest == (bfd_vma) -1) |
| 11328 | continue; | |
| 11329 | } | |
| 11330 | else | |
| 11331 | dest = (sym_value | |
| 11332 | + sym_sec->output_offset | |
| 11333 | + sym_sec->output_section->vma); | |
| 4c52953f | 11334 | |
| 70cc837d AM |
11335 | /* Ignore branch to self. */ |
| 11336 | if (sym_sec == isec) | |
| 11337 | continue; | |
| 4c52953f | 11338 | |
| 70cc837d AM |
11339 | /* If the called function uses the toc, we need a stub. */ |
| 11340 | if (sym_sec->has_toc_reloc | |
| 11341 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11342 | { |
| 70cc837d | 11343 | ret = 1; |
| 4c52953f AM |
11344 | break; |
| 11345 | } | |
| 70cc837d AM |
11346 | |
| 11347 | /* Assume any branch that needs a long branch stub might in fact | |
| 11348 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11349 | else if (dest - (isec->output_offset | |
| 11350 | + isec->output_section->vma | |
| 6911b7dc AM |
11351 | + rel->r_offset) + (1 << 25) |
| 11352 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11353 | ? h->other | |
| 11354 | : sym->st_other)) | |
| 4c52953f | 11355 | { |
| 70cc837d AM |
11356 | ret = 1; |
| 11357 | break; | |
| 11358 | } | |
| 11359 | ||
| 11360 | /* If calling back to a section in the process of being | |
| 11361 | tested, we can't say for sure that no toc adjusting stubs | |
| 11362 | are needed, so don't return zero. */ | |
| 11363 | else if (sym_sec->call_check_in_progress) | |
| 11364 | ret = 2; | |
| 11365 | ||
| 11366 | /* Branches to another section that itself doesn't have any TOC | |
| 11367 | references are OK. Recursively call ourselves to check. */ | |
| 11368 | else if (!sym_sec->call_check_done) | |
| 11369 | { | |
| 11370 | int recur; | |
| 11371 | ||
| 11372 | /* Mark current section as indeterminate, so that other | |
| 11373 | sections that call back to current won't be marked as | |
| 11374 | known. */ | |
| 11375 | isec->call_check_in_progress = 1; | |
| 11376 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11377 | isec->call_check_in_progress = 0; | |
| 11378 | ||
| 4c52953f AM |
11379 | if (recur != 0) |
| 11380 | { | |
| 70cc837d AM |
11381 | ret = recur; |
| 11382 | if (recur != 2) | |
| 11383 | break; | |
| 4c52953f AM |
11384 | } |
| 11385 | } | |
| 4c52953f | 11386 | } |
| 70cc837d AM |
11387 | |
| 11388 | if (local_syms != NULL | |
| 11389 | && (elf_symtab_hdr (isec->owner).contents | |
| 11390 | != (unsigned char *) local_syms)) | |
| 11391 | free (local_syms); | |
| 11392 | if (elf_section_data (isec)->relocs != relstart) | |
| 11393 | free (relstart); | |
| 9b5ecbd0 AM |
11394 | } |
| 11395 | ||
| 70cc837d AM |
11396 | if ((ret & 1) == 0 |
| 11397 | && isec->map_head.s != NULL | |
| 11398 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11399 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11400 | { | |
| 11401 | if (isec->map_head.s->has_toc_reloc | |
| 11402 | || isec->map_head.s->makes_toc_func_call) | |
| 11403 | ret = 1; | |
| 11404 | else if (!isec->map_head.s->call_check_done) | |
| 11405 | { | |
| 11406 | int recur; | |
| 11407 | isec->call_check_in_progress = 1; | |
| 11408 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11409 | isec->call_check_in_progress = 0; | |
| 11410 | if (recur != 0) | |
| 11411 | ret = recur; | |
| 11412 | } | |
| 11413 | } | |
| 11414 | ||
| 11415 | if (ret == 1) | |
| 11416 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11417 | |
| 9b5ecbd0 AM |
11418 | return ret; |
| 11419 | } | |
| 11420 | ||
| 721956f4 AM |
11421 | /* The linker repeatedly calls this function for each input section, |
| 11422 | in the order that input sections are linked into output sections. | |
| 11423 | Build lists of input sections to determine groupings between which | |
| 11424 | we may insert linker stubs. */ | |
| 11425 | ||
| 9b5ecbd0 | 11426 | bfd_boolean |
| 4ce794b7 | 11427 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11428 | { |
| 11429 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11430 | ||
| 4dfe6ac6 NC |
11431 | if (htab == NULL) |
| 11432 | return FALSE; | |
| 11433 | ||
| 734b6cf9 AM |
11434 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 11435 | && isec->output_section->index <= htab->top_index) | |
| 721956f4 | 11436 | { |
| 734b6cf9 | 11437 | asection **list = htab->input_list + isec->output_section->index; |
| 3d6f9012 | 11438 | /* Steal the link_sec pointer for our list. */ |
| 721956f4 | 11439 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3d6f9012 AM |
11440 | /* This happens to make the list in reverse order, |
| 11441 | which is what we want. */ | |
| 734b6cf9 AM |
11442 | PREV_SEC (isec) = *list; |
| 11443 | *list = isec; | |
| 721956f4 | 11444 | } |
| ad8e1ba5 | 11445 | |
| 4c52953f | 11446 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11447 | { |
| 4c52953f AM |
11448 | /* If a code section has a function that uses the TOC then we need |
| 11449 | to use the right TOC (obviously). Also, make sure that .opd gets | |
| 11450 | the correct TOC value for R_PPC64_TOC relocs that don't have or | |
| f94498ff AM |
11451 | can't find their function symbol (shouldn't ever happen now). |
| 11452 | Also specially treat .fixup for the linux kernel. .fixup | |
| 11453 | contains branches, but only back to the function that hit an | |
| 11454 | exception. */ | |
| 11455 | if (isec->has_toc_reloc | |
| 11456 | || (isec->flags & SEC_CODE) == 0 | |
| 11457 | || strcmp (isec->name, ".fixup") == 0) | |
| 4c52953f AM |
11458 | { |
| 11459 | if (elf_gp (isec->owner) != 0) | |
| 11460 | htab->toc_curr = elf_gp (isec->owner); | |
| 11461 | } | |
| 6683a28d AM |
11462 | else |
| 11463 | { | |
| 11464 | if (!isec->call_check_done | |
| 11465 | && toc_adjusting_stub_needed (info, isec) < 0) | |
| 11466 | return FALSE; | |
| 11467 | /* If we make a local call from this section, ie. a branch | |
| 11468 | without a following nop, then we have no place to put a | |
| 11469 | toc restoring insn. We must use the same toc group as | |
| 11470 | the callee. | |
| 11471 | Testing makes_toc_func_call actually tests for *any* | |
| 11472 | calls to functions that need a good toc pointer. A more | |
| 11473 | precise test would be better, as this one will set | |
| 11474 | incorrect values for pasted .init/.fini fragments. | |
| 11475 | (Fixed later in check_pasted_section.) */ | |
| 11476 | if (isec->makes_toc_func_call | |
| 11477 | && elf_gp (isec->owner) != 0) | |
| 11478 | htab->toc_curr = elf_gp (isec->owner); | |
| 11479 | } | |
| 9b5ecbd0 | 11480 | } |
| ad8e1ba5 AM |
11481 | |
| 11482 | /* Functions that don't use the TOC can belong in any TOC group. | |
| 6683a28d | 11483 | Use the last TOC base. */ |
| ad8e1ba5 | 11484 | htab->stub_group[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11485 | return TRUE; |
| 721956f4 AM |
11486 | } |
| 11487 | ||
| 70cc837d AM |
11488 | /* Check that all .init and .fini sections use the same toc, if they |
| 11489 | have toc relocs. */ | |
| 11490 | ||
| 11491 | static bfd_boolean | |
| 11492 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11493 | { | |
| 11494 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11495 | ||
| 11496 | if (o != NULL) | |
| 11497 | { | |
| 11498 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11499 | bfd_vma toc_off = 0; | |
| 11500 | asection *i; | |
| 11501 | ||
| 11502 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11503 | if (i->has_toc_reloc) | |
| 11504 | { | |
| 11505 | if (toc_off == 0) | |
| 11506 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11507 | else if (toc_off != htab->stub_group[i->id].toc_off) | |
| 11508 | return FALSE; | |
| 11509 | } | |
| 6683a28d AM |
11510 | |
| 11511 | if (toc_off == 0) | |
| 11512 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11513 | if (i->makes_toc_func_call) | |
| 11514 | { | |
| 11515 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11516 | break; | |
| 11517 | } | |
| 11518 | ||
| 70cc837d AM |
11519 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11520 | if (toc_off != 0) | |
| 11521 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11522 | htab->stub_group[i->id].toc_off = toc_off; | |
| 11523 | } | |
| 11524 | return TRUE; | |
| 11525 | } | |
| 11526 | ||
| 11527 | bfd_boolean | |
| 11528 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11529 | { | |
| 11530 | return (check_pasted_section (info, ".init") | |
| 11531 | & check_pasted_section (info, ".fini")); | |
| 11532 | } | |
| 11533 | ||
| 721956f4 AM |
11534 | /* See whether we can group stub sections together. Grouping stub |
| 11535 | sections may result in fewer stubs. More importantly, we need to | |
| 11536 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11537 | .fini output sections respectively, because glibc splits the | |
| 11538 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11539 | the middle of a function is not a good idea. */ | |
| 11540 | ||
| 11541 | static void | |
| 4ce794b7 AM |
11542 | group_sections (struct ppc_link_hash_table *htab, |
| 11543 | bfd_size_type stub_group_size, | |
| 11544 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11545 | { |
| 7c8fe5c4 AM |
11546 | asection **list; |
| 11547 | bfd_size_type stub14_group_size; | |
| 11548 | bfd_boolean suppress_size_errors; | |
| 11549 | ||
| 11550 | suppress_size_errors = FALSE; | |
| 11551 | stub14_group_size = stub_group_size; | |
| 11552 | if (stub_group_size == 1) | |
| 11553 | { | |
| 11554 | /* Default values. */ | |
| 11555 | if (stubs_always_before_branch) | |
| 11556 | { | |
| 11557 | stub_group_size = 0x1e00000; | |
| 11558 | stub14_group_size = 0x7800; | |
| 11559 | } | |
| 11560 | else | |
| 11561 | { | |
| 11562 | stub_group_size = 0x1c00000; | |
| 11563 | stub14_group_size = 0x7000; | |
| 11564 | } | |
| 11565 | suppress_size_errors = TRUE; | |
| 11566 | } | |
| 11567 | ||
| 11568 | list = htab->input_list + htab->top_index; | |
| 734b6cf9 | 11569 | do |
| 721956f4 | 11570 | { |
| 734b6cf9 AM |
11571 | asection *tail = *list; |
| 11572 | while (tail != NULL) | |
| 721956f4 | 11573 | { |
| 734b6cf9 AM |
11574 | asection *curr; |
| 11575 | asection *prev; | |
| 11576 | bfd_size_type total; | |
| 11577 | bfd_boolean big_sec; | |
| 11578 | bfd_vma curr_toc; | |
| 11579 | ||
| 11580 | curr = tail; | |
| eea6121a | 11581 | total = tail->size; |
| 6bee8834 AM |
11582 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 11583 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
11584 | ? stub14_group_size : stub_group_size); |
| 11585 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
11586 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 11587 | tail->owner, tail); | |
| 734b6cf9 AM |
11588 | curr_toc = htab->stub_group[tail->id].toc_off; |
| 11589 | ||
| 11590 | while ((prev = PREV_SEC (curr)) != NULL | |
| 11591 | && ((total += curr->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11592 | < (ppc64_elf_section_data (prev) != NULL |
| 11593 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11594 | ? stub14_group_size : stub_group_size)) |
| ad8e1ba5 | 11595 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
11596 | curr = prev; |
| 11597 | ||
| 11598 | /* OK, the size from the start of CURR to the end is less | |
| 11599 | than stub_group_size and thus can be handled by one stub | |
| 11600 | section. (or the tail section is itself larger than | |
| 11601 | stub_group_size, in which case we may be toast.) We | |
| 11602 | should really be keeping track of the total size of stubs | |
| 11603 | added here, as stubs contribute to the final output | |
| 11604 | section size. That's a little tricky, and this way will | |
| 11605 | only break if stubs added make the total size more than | |
| 11606 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 11607 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 11608 | do | |
| 721956f4 AM |
11609 | { |
| 11610 | prev = PREV_SEC (tail); | |
| 734b6cf9 | 11611 | /* Set up this stub group. */ |
| 721956f4 AM |
11612 | htab->stub_group[tail->id].link_sec = curr; |
| 11613 | } | |
| 734b6cf9 AM |
11614 | while (tail != curr && (tail = prev) != NULL); |
| 11615 | ||
| 11616 | /* But wait, there's more! Input sections up to stub_group_size | |
| 11617 | bytes before the stub section can be handled by it too. | |
| 11618 | Don't do this if we have a really large section after the | |
| 11619 | stubs, as adding more stubs increases the chance that | |
| 11620 | branches may not reach into the stub section. */ | |
| 11621 | if (!stubs_always_before_branch && !big_sec) | |
| 11622 | { | |
| 11623 | total = 0; | |
| 11624 | while (prev != NULL | |
| 11625 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11626 | < (ppc64_elf_section_data (prev) != NULL |
| 11627 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11628 | ? stub14_group_size : stub_group_size)) |
| 734b6cf9 AM |
11629 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 11630 | { | |
| 11631 | tail = prev; | |
| 11632 | prev = PREV_SEC (tail); | |
| 11633 | htab->stub_group[tail->id].link_sec = curr; | |
| 11634 | } | |
| 11635 | } | |
| 11636 | tail = prev; | |
| 721956f4 AM |
11637 | } |
| 11638 | } | |
| 734b6cf9 AM |
11639 | while (list-- != htab->input_list); |
| 11640 | free (htab->input_list); | |
| 721956f4 AM |
11641 | #undef PREV_SEC |
| 11642 | } | |
| 11643 | ||
| 58d180e8 AM |
11644 | static const unsigned char glink_eh_frame_cie[] = |
| 11645 | { | |
| 11646 | 0, 0, 0, 16, /* length. */ | |
| 11647 | 0, 0, 0, 0, /* id. */ | |
| 11648 | 1, /* CIE version. */ | |
| 11649 | 'z', 'R', 0, /* Augmentation string. */ | |
| 11650 | 4, /* Code alignment. */ | |
| 11651 | 0x78, /* Data alignment. */ | |
| 11652 | 65, /* RA reg. */ | |
| 11653 | 1, /* Augmentation size. */ | |
| 11654 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 11655 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ | |
| 11656 | }; | |
| 11657 | ||
| d969d15f AM |
11658 | /* Stripping output sections is normally done before dynamic section |
| 11659 | symbols have been allocated. This function is called later, and | |
| 11660 | handles cases like htab->brlt which is mapped to its own output | |
| 11661 | section. */ | |
| 11662 | ||
| 11663 | static void | |
| 11664 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 11665 | { | |
| 11666 | if (isec->size == 0 | |
| 11667 | && isec->output_section->size == 0 | |
| 53d8967a | 11668 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
11669 | && !bfd_section_removed_from_list (info->output_bfd, |
| 11670 | isec->output_section) | |
| 11671 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 11672 | { | |
| 11673 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 11674 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 11675 | info->output_bfd->section_count--; | |
| 11676 | } | |
| 11677 | } | |
| 11678 | ||
| 721956f4 AM |
11679 | /* Determine and set the size of the stub section for a final link. |
| 11680 | ||
| 11681 | The basic idea here is to examine all the relocations looking for | |
| 11682 | PC-relative calls to a target that is unreachable with a "bl" | |
| 11683 | instruction. */ | |
| 11684 | ||
| b34976b6 | 11685 | bfd_boolean |
| 9df0ef5f | 11686 | ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size, |
| 794e51c0 AM |
11687 | bfd_boolean plt_static_chain, int plt_thread_safe, |
| 11688 | int plt_stub_align) | |
| 721956f4 AM |
11689 | { |
| 11690 | bfd_size_type stub_group_size; | |
| b34976b6 | 11691 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
11692 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 11693 | ||
| 4dfe6ac6 NC |
11694 | if (htab == NULL) |
| 11695 | return FALSE; | |
| 11696 | ||
| 9df0ef5f | 11697 | htab->plt_static_chain = plt_static_chain; |
| 794e51c0 | 11698 | htab->plt_stub_align = plt_stub_align; |
| e2458743 AM |
11699 | if (plt_thread_safe == -1 && !info->executable) |
| 11700 | plt_thread_safe = 1; | |
| 794e51c0 AM |
11701 | if (plt_thread_safe == -1) |
| 11702 | { | |
| e2458743 | 11703 | static const char *const thread_starter[] = |
| 794e51c0 AM |
11704 | { |
| 11705 | "pthread_create", | |
| 11706 | /* libstdc++ */ | |
| 11707 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 11708 | /* librt */ | |
| 11709 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 11710 | "mq_notify", "create_timer", | |
| 11711 | /* libanl */ | |
| 11712 | "getaddrinfo_a", | |
| 11713 | /* libgomp */ | |
| 11714 | "GOMP_parallel_start", | |
| 11715 | "GOMP_parallel_loop_static_start", | |
| 11716 | "GOMP_parallel_loop_dynamic_start", | |
| 11717 | "GOMP_parallel_loop_guided_start", | |
| 11718 | "GOMP_parallel_loop_runtime_start", | |
| 68ffbac6 | 11719 | "GOMP_parallel_sections_start", |
| 794e51c0 AM |
11720 | }; |
| 11721 | unsigned i; | |
| 11722 | ||
| 11723 | for (i = 0; i < sizeof (thread_starter)/ sizeof (thread_starter[0]); i++) | |
| 11724 | { | |
| 11725 | struct elf_link_hash_entry *h; | |
| 11726 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 11727 | FALSE, FALSE, TRUE); | |
| 11728 | plt_thread_safe = h != NULL && h->ref_regular; | |
| 11729 | if (plt_thread_safe) | |
| 11730 | break; | |
| 11731 | } | |
| 11732 | } | |
| 11733 | htab->plt_thread_safe = plt_thread_safe; | |
| 721956f4 AM |
11734 | stubs_always_before_branch = group_size < 0; |
| 11735 | if (group_size < 0) | |
| 11736 | stub_group_size = -group_size; | |
| 11737 | else | |
| 11738 | stub_group_size = group_size; | |
| 721956f4 AM |
11739 | |
| 11740 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 11741 | ||
| 721956f4 AM |
11742 | while (1) |
| 11743 | { | |
| 11744 | bfd *input_bfd; | |
| 11745 | unsigned int bfd_indx; | |
| 11746 | asection *stub_sec; | |
| 721956f4 AM |
11747 | |
| 11748 | htab->stub_iteration += 1; | |
| 721956f4 AM |
11749 | |
| 11750 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 11751 | input_bfd != NULL; | |
| 11752 | input_bfd = input_bfd->link_next, bfd_indx++) | |
| 11753 | { | |
| 11754 | Elf_Internal_Shdr *symtab_hdr; | |
| 11755 | asection *section; | |
| 6cdc0ccc | 11756 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 11757 | |
| 0c8d6e5c | 11758 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
11759 | continue; |
| 11760 | ||
| 721956f4 | 11761 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 11762 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
11763 | if (symtab_hdr->sh_info == 0) |
| 11764 | continue; | |
| 11765 | ||
| 721956f4 AM |
11766 | /* Walk over each section attached to the input bfd. */ |
| 11767 | for (section = input_bfd->sections; | |
| 11768 | section != NULL; | |
| 11769 | section = section->next) | |
| 11770 | { | |
| 721956f4 | 11771 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
11772 | |
| 11773 | /* If there aren't any relocs, then there's nothing more | |
| 11774 | to do. */ | |
| 11775 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
11776 | || (section->flags & SEC_ALLOC) == 0 |
| 11777 | || (section->flags & SEC_LOAD) == 0 | |
| 11778 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
11779 | || section->reloc_count == 0) |
| 11780 | continue; | |
| 11781 | ||
| 11782 | /* If this section is a link-once section that will be | |
| 11783 | discarded, then don't create any stubs. */ | |
| 11784 | if (section->output_section == NULL | |
| 927be08e | 11785 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
11786 | continue; |
| 11787 | ||
| 1e2f5b6e AM |
11788 | /* Get the relocs. */ |
| 11789 | internal_relocs | |
| 4ce794b7 | 11790 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 11791 | info->keep_memory); |
| 721956f4 | 11792 | if (internal_relocs == NULL) |
| 1e2f5b6e | 11793 | goto error_ret_free_local; |
| 721956f4 AM |
11794 | |
| 11795 | /* Now examine each relocation. */ | |
| 11796 | irela = internal_relocs; | |
| 11797 | irelaend = irela + section->reloc_count; | |
| 11798 | for (; irela < irelaend; irela++) | |
| 11799 | { | |
| 4ce794b7 AM |
11800 | enum elf_ppc64_reloc_type r_type; |
| 11801 | unsigned int r_indx; | |
| 721956f4 AM |
11802 | enum ppc_stub_type stub_type; |
| 11803 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 11804 | asection *sym_sec, *code_sec; |
| e054468f | 11805 | bfd_vma sym_value, code_value; |
| 721956f4 | 11806 | bfd_vma destination; |
| 6911b7dc | 11807 | unsigned long local_off; |
| 8843416a | 11808 | bfd_boolean ok_dest; |
| 721956f4 | 11809 | struct ppc_link_hash_entry *hash; |
| 8387904d | 11810 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
11811 | struct elf_link_hash_entry *h; |
| 11812 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
11813 | char *stub_name; |
| 11814 | const asection *id_sec; | |
| 74f0fb50 | 11815 | struct _opd_sec_data *opd; |
| e054468f | 11816 | struct plt_entry *plt_ent; |
| 721956f4 AM |
11817 | |
| 11818 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 11819 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 11820 | ||
| 4ce794b7 | 11821 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
11822 | { |
| 11823 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 11824 | goto error_ret_free_internal; |
| 721956f4 AM |
11825 | } |
| 11826 | ||
| 11827 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
11828 | if (r_type != R_PPC64_REL24 |
| 11829 | && r_type != R_PPC64_REL14 | |
| 11830 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11831 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
11832 | continue; |
| 11833 | ||
| 11834 | /* Now determine the call target, its name, value, | |
| 11835 | section. */ | |
| 411e1bfb AM |
11836 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 11837 | r_indx, input_bfd)) | |
| 11838 | goto error_ret_free_internal; | |
| 11839 | hash = (struct ppc_link_hash_entry *) h; | |
| 11840 | ||
| 8843416a | 11841 | ok_dest = FALSE; |
| 8387904d | 11842 | fdh = NULL; |
| 7fe2b9a6 | 11843 | sym_value = 0; |
| 411e1bfb | 11844 | if (hash == NULL) |
| 721956f4 | 11845 | { |
| 411e1bfb | 11846 | sym_value = sym->st_value; |
| 8843416a | 11847 | ok_dest = TRUE; |
| 721956f4 | 11848 | } |
| 7fe2b9a6 AM |
11849 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 11850 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 11851 | { | |
| 11852 | sym_value = hash->elf.root.u.def.value; | |
| 11853 | if (sym_sec->output_section != NULL) | |
| 11854 | ok_dest = TRUE; | |
| 11855 | } | |
| 11856 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 11857 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 11858 | { |
| 99877b66 | 11859 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
11860 | use the func descriptor sym instead if it is |
| 11861 | defined. */ | |
| ceb1f1ef | 11862 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 11863 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 11864 | { |
| 8387904d AM |
11865 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 11866 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 11867 | { | |
| 11868 | sym_sec = fdh->elf.root.u.def.section; | |
| 11869 | sym_value = fdh->elf.root.u.def.value; | |
| 11870 | if (sym_sec->output_section != NULL) | |
| 11871 | ok_dest = TRUE; | |
| 11872 | } | |
| 99877b66 AM |
11873 | else |
| 11874 | fdh = NULL; | |
| 8387904d | 11875 | } |
| 7fe2b9a6 AM |
11876 | } |
| 11877 | else | |
| 11878 | { | |
| 11879 | bfd_set_error (bfd_error_bad_value); | |
| 11880 | goto error_ret_free_internal; | |
| 721956f4 AM |
11881 | } |
| 11882 | ||
| 8843416a | 11883 | destination = 0; |
| 6911b7dc | 11884 | local_off = 0; |
| 8843416a AM |
11885 | if (ok_dest) |
| 11886 | { | |
| 11887 | sym_value += irela->r_addend; | |
| 11888 | destination = (sym_value | |
| 11889 | + sym_sec->output_offset | |
| 11890 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
11891 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 11892 | ? hash->elf.other | |
| 11893 | : sym->st_other); | |
| 8843416a AM |
11894 | } |
| 11895 | ||
| 8387904d | 11896 | code_sec = sym_sec; |
| e054468f | 11897 | code_value = sym_value; |
| 74f0fb50 AM |
11898 | opd = get_opd_info (sym_sec); |
| 11899 | if (opd != NULL) | |
| 8387904d AM |
11900 | { |
| 11901 | bfd_vma dest; | |
| 11902 | ||
| 74f0fb50 | 11903 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 11904 | { |
| 74f0fb50 | 11905 | long adjust = opd->adjust[sym_value / 8]; |
| 8387904d AM |
11906 | if (adjust == -1) |
| 11907 | continue; | |
| e054468f | 11908 | code_value += adjust; |
| 8387904d AM |
11909 | sym_value += adjust; |
| 11910 | } | |
| 11911 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 11912 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
11913 | if (dest != (bfd_vma) -1) |
| 11914 | { | |
| 11915 | destination = dest; | |
| 11916 | if (fdh != NULL) | |
| 11917 | { | |
| 11918 | /* Fixup old ABI sym to point at code | |
| 11919 | entry. */ | |
| 99877b66 | 11920 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 11921 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 11922 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
11923 | } |
| 11924 | } | |
| 11925 | } | |
| 11926 | ||
| 721956f4 | 11927 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 11928 | plt_ent = NULL; |
| 721956f4 | 11929 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
11930 | &plt_ent, destination, |
| 11931 | local_off); | |
| ad8e1ba5 AM |
11932 | |
| 11933 | if (stub_type != ppc_stub_plt_call) | |
| 11934 | { | |
| 11935 | /* Check whether we need a TOC adjusting stub. | |
| 11936 | Since the linker pastes together pieces from | |
| 11937 | different object files when creating the | |
| 11938 | _init and _fini functions, it may be that a | |
| 11939 | call to what looks like a local sym is in | |
| 11940 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
11941 | if (code_sec != NULL |
| 11942 | && code_sec->output_section != NULL | |
| 11943 | && (htab->stub_group[code_sec->id].toc_off | |
| 9b5ecbd0 | 11944 | != htab->stub_group[section->id].toc_off) |
| 4c52953f AM |
11945 | && (code_sec->has_toc_reloc |
| 11946 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
11947 | stub_type = ppc_stub_long_branch_r2off; |
| 11948 | } | |
| 11949 | ||
| 721956f4 AM |
11950 | if (stub_type == ppc_stub_none) |
| 11951 | continue; | |
| 11952 | ||
| 411e1bfb AM |
11953 | /* __tls_get_addr calls might be eliminated. */ |
| 11954 | if (stub_type != ppc_stub_plt_call | |
| 11955 | && hash != NULL | |
| 8387904d AM |
11956 | && (hash == htab->tls_get_addr |
| 11957 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
11958 | && section->has_tls_reloc |
| 11959 | && irela != internal_relocs) | |
| 11960 | { | |
| 11961 | /* Get tls info. */ | |
| f961d9dd | 11962 | unsigned char *tls_mask; |
| 411e1bfb | 11963 | |
| 3a71aa26 | 11964 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
11965 | irela - 1, input_bfd)) |
| 11966 | goto error_ret_free_internal; | |
| e7b938ca | 11967 | if (*tls_mask != 0) |
| 411e1bfb AM |
11968 | continue; |
| 11969 | } | |
| 11970 | ||
| 3b421ab3 AM |
11971 | if (stub_type == ppc_stub_plt_call |
| 11972 | && irela + 1 < irelaend | |
| 11973 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
11974 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 11975 | { | |
| 11976 | if (!tocsave_find (htab, INSERT, | |
| 11977 | &local_syms, irela + 1, input_bfd)) | |
| 11978 | goto error_ret_free_internal; | |
| 11979 | } | |
| 11980 | else if (stub_type == ppc_stub_plt_call) | |
| 11981 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 11982 | |
| 721956f4 AM |
11983 | /* Support for grouping stub sections. */ |
| 11984 | id_sec = htab->stub_group[section->id].link_sec; | |
| 11985 | ||
| 11986 | /* Get the name of this stub. */ | |
| 11987 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 11988 | if (!stub_name) | |
| 11989 | goto error_ret_free_internal; | |
| 11990 | ||
| 11991 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 11992 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
11993 | if (stub_entry != NULL) |
| 11994 | { | |
| 11995 | /* The proper stub has already been created. */ | |
| 11996 | free (stub_name); | |
| 794e51c0 AM |
11997 | if (stub_type == ppc_stub_plt_call_r2save) |
| 11998 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
11999 | continue; |
| 12000 | } | |
| 12001 | ||
| 25f53a85 | 12002 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12003 | if (stub_entry == NULL) |
| 12004 | { | |
| 12005 | free (stub_name); | |
| 6cdc0ccc AM |
12006 | error_ret_free_internal: |
| 12007 | if (elf_section_data (section)->relocs == NULL) | |
| 12008 | free (internal_relocs); | |
| 12009 | error_ret_free_local: | |
| 12010 | if (local_syms != NULL | |
| 12011 | && (symtab_hdr->contents | |
| 12012 | != (unsigned char *) local_syms)) | |
| 12013 | free (local_syms); | |
| b34976b6 | 12014 | return FALSE; |
| 721956f4 AM |
12015 | } |
| 12016 | ||
| ad8e1ba5 | 12017 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12018 | if (stub_type != ppc_stub_plt_call |
| 12019 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12020 | { |
| 12021 | stub_entry->target_value = code_value; | |
| 12022 | stub_entry->target_section = code_sec; | |
| 12023 | } | |
| 12024 | else | |
| 12025 | { | |
| 12026 | stub_entry->target_value = sym_value; | |
| 12027 | stub_entry->target_section = sym_sec; | |
| 12028 | } | |
| 721956f4 | 12029 | stub_entry->h = hash; |
| e054468f | 12030 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12031 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12032 | |
| 12033 | if (stub_entry->h != NULL) | |
| 12034 | htab->stub_globals += 1; | |
| 721956f4 AM |
12035 | } |
| 12036 | ||
| 12037 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12038 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12039 | free (internal_relocs); |
| 721956f4 | 12040 | } |
| 6cdc0ccc AM |
12041 | |
| 12042 | if (local_syms != NULL | |
| 12043 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12044 | { | |
| 12045 | if (!info->keep_memory) | |
| 12046 | free (local_syms); | |
| 12047 | else | |
| 12048 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12049 | } | |
| 721956f4 AM |
12050 | } |
| 12051 | ||
| 5c3dead3 | 12052 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 AM |
12053 | stub sections. */ |
| 12054 | for (stub_sec = htab->stub_bfd->sections; | |
| 12055 | stub_sec != NULL; | |
| 12056 | stub_sec = stub_sec->next) | |
| e717da7e | 12057 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12058 | { |
| 5c3dead3 | 12059 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12060 | stub_sec->size = 0; |
| 12061 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12062 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12063 | } |
| eea6121a AM |
12064 | |
| 12065 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12066 | htab->brlt->reloc_count = 0; |
| 12067 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12068 | if (htab->relbrlt != NULL) |
| eea6121a | 12069 | htab->relbrlt->size = 0; |
| 721956f4 | 12070 | |
| 63bc6f6c | 12071 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12072 | |
| 176a0d42 AM |
12073 | if (info->emitrelocations |
| 12074 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12075 | { | |
| 12076 | htab->glink->reloc_count = 1; | |
| 12077 | htab->glink->flags |= SEC_RELOC; | |
| 12078 | } | |
| 12079 | ||
| 58d180e8 AM |
12080 | if (htab->glink_eh_frame != NULL |
| 12081 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12082 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12083 | { |
| 4bbe044a | 12084 | size_t size = 0, align; |
| 58d180e8 AM |
12085 | |
| 12086 | for (stub_sec = htab->stub_bfd->sections; | |
| 12087 | stub_sec != NULL; | |
| 12088 | stub_sec = stub_sec->next) | |
| 12089 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12090 | size += 20; | |
| 12091 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12092 | size += 24; | |
| 12093 | if (size != 0) | |
| 12094 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12095 | align = 1; |
| 12096 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12097 | align -= 1; | |
| 12098 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12099 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12100 | htab->glink_eh_frame->size = size; | |
| 12101 | } | |
| 12102 | ||
| 794e51c0 AM |
12103 | if (htab->plt_stub_align != 0) |
| 12104 | for (stub_sec = htab->stub_bfd->sections; | |
| 12105 | stub_sec != NULL; | |
| 12106 | stub_sec = stub_sec->next) | |
| 12107 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12108 | stub_sec->size = ((stub_sec->size + (1 << htab->plt_stub_align) - 1) | |
| 12109 | & (-1 << htab->plt_stub_align)); | |
| 12110 | ||
| 5c3dead3 AM |
12111 | for (stub_sec = htab->stub_bfd->sections; |
| 12112 | stub_sec != NULL; | |
| 12113 | stub_sec = stub_sec->next) | |
| 12114 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| 12115 | && stub_sec->rawsize != stub_sec->size) | |
| 12116 | break; | |
| 12117 | ||
| 12118 | /* Exit from this loop when no stubs have been added, and no stubs | |
| 12119 | have changed size. */ | |
| 58d180e8 AM |
12120 | if (stub_sec == NULL |
| 12121 | && (htab->glink_eh_frame == NULL | |
| 12122 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12123 | break; |
| 12124 | ||
| 721956f4 AM |
12125 | /* Ask the linker to do its stuff. */ |
| 12126 | (*htab->layout_sections_again) (); | |
| 12127 | } | |
| 12128 | ||
| d969d15f AM |
12129 | maybe_strip_output (info, htab->brlt); |
| 12130 | if (htab->glink_eh_frame != NULL) | |
| 12131 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12132 | |
| b34976b6 | 12133 | return TRUE; |
| 721956f4 AM |
12134 | } |
| 12135 | ||
| 12136 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12137 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12138 | |
| 805fc799 | 12139 | bfd_vma |
| 1c865ab2 | 12140 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12141 | { |
| 805fc799 AM |
12142 | asection *s; |
| 12143 | bfd_vma TOCstart; | |
| 721956f4 | 12144 | |
| 805fc799 AM |
12145 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12146 | order. The TOC starts where the first of these sections starts. */ | |
| 12147 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12148 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12149 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12150 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12151 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12152 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12153 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12154 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12155 | { |
| 12156 | /* This may happen for | |
| 12157 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12158 | .toc directive | |
| 12159 | o bad linker script | |
| 12160 | o --gc-sections and empty TOC sections | |
| 12161 | ||
| 12162 | FIXME: Warn user? */ | |
| 12163 | ||
| 12164 | /* Look for a likely section. We probably won't even be | |
| 12165 | using TOCstart. */ | |
| 12166 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12167 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12168 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12169 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12170 | break; | |
| 721956f4 | 12171 | if (s == NULL) |
| 805fc799 | 12172 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12173 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12174 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12175 | break; | |
| 721956f4 | 12176 | if (s == NULL) |
| 805fc799 | 12177 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12178 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12179 | == SEC_ALLOC) | |
| 805fc799 | 12180 | break; |
| 721956f4 | 12181 | if (s == NULL) |
| 805fc799 | 12182 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12183 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12184 | break; |
| 12185 | } | |
| 721956f4 | 12186 | |
| 805fc799 AM |
12187 | TOCstart = 0; |
| 12188 | if (s != NULL) | |
| 12189 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12190 | |
| 1c865ab2 AM |
12191 | _bfd_set_gp_value (obfd, TOCstart); |
| 12192 | ||
| 12193 | if (info != NULL && s != NULL && is_ppc64_elf (obfd)) | |
| 12194 | { | |
| 12195 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12196 | ||
| 12197 | if (htab != NULL | |
| 12198 | && htab->elf.hgot != NULL) | |
| 12199 | { | |
| 5295321c | 12200 | htab->elf.hgot->type = STT_OBJECT; |
| 1c865ab2 AM |
12201 | htab->elf.hgot->root.type = bfd_link_hash_defined; |
| 12202 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF; | |
| 12203 | htab->elf.hgot->root.u.def.section = s; | |
| 12204 | } | |
| 12205 | } | |
| 805fc799 | 12206 | return TOCstart; |
| 721956f4 AM |
12207 | } |
| 12208 | ||
| 12209 | /* Build all the stubs associated with the current output file. | |
| 12210 | The stubs are kept in a hash table attached to the main linker | |
| 12211 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12212 | ||
| b34976b6 | 12213 | bfd_boolean |
| 4ce794b7 AM |
12214 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
| 12215 | struct bfd_link_info *info, | |
| 12216 | char **stats) | |
| 5d1634d7 AM |
12217 | { |
| 12218 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 721956f4 | 12219 | asection *stub_sec; |
| 5d1634d7 | 12220 | bfd_byte *p; |
| e717da7e | 12221 | int stub_sec_count = 0; |
| 5d1634d7 | 12222 | |
| 4dfe6ac6 NC |
12223 | if (htab == NULL) |
| 12224 | return FALSE; | |
| 12225 | ||
| ad8e1ba5 | 12226 | htab->emit_stub_syms = emit_stub_syms; |
| eea6121a AM |
12227 | |
| 12228 | /* Allocate memory to hold the linker stubs. */ | |
| 721956f4 AM |
12229 | for (stub_sec = htab->stub_bfd->sections; |
| 12230 | stub_sec != NULL; | |
| 12231 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12232 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12233 | && stub_sec->size != 0) | |
| e717da7e | 12234 | { |
| eea6121a AM |
12235 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size); |
| 12236 | if (stub_sec->contents == NULL) | |
| 12237 | return FALSE; | |
| 12238 | /* We want to check that built size is the same as calculated | |
| 12239 | size. rawsize is a convenient location to use. */ | |
| 12240 | stub_sec->rawsize = stub_sec->size; | |
| 12241 | stub_sec->size = 0; | |
| e717da7e | 12242 | } |
| 5d1634d7 | 12243 | |
| 23eb7e01 | 12244 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12245 | { |
| 9f951329 | 12246 | unsigned int indx; |
| ad8e1ba5 | 12247 | bfd_vma plt0; |
| 9f951329 | 12248 | |
| 721956f4 | 12249 | /* Build the .glink plt call stub. */ |
| 97b639ba AM |
12250 | if (htab->emit_stub_syms) |
| 12251 | { | |
| 12252 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12253 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12254 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12255 | if (h == NULL) |
| 12256 | return FALSE; | |
| 12257 | if (h->root.type == bfd_link_hash_new) | |
| 12258 | { | |
| 12259 | h->root.type = bfd_link_hash_defined; | |
| 12260 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12261 | h->root.u.def.value = 8; |
| f5385ebf AM |
12262 | h->ref_regular = 1; |
| 12263 | h->def_regular = 1; | |
| 12264 | h->ref_regular_nonweak = 1; | |
| 12265 | h->forced_local = 1; | |
| 12266 | h->non_elf = 0; | |
| 97b639ba AM |
12267 | } |
| 12268 | } | |
| 176a0d42 AM |
12269 | plt0 = htab->plt->output_section->vma + htab->plt->output_offset - 16; |
| 12270 | if (info->emitrelocations) | |
| 12271 | { | |
| 12272 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12273 | if (r == NULL) | |
| 12274 | return FALSE; | |
| 12275 | r->r_offset = (htab->glink->output_offset | |
| 12276 | + htab->glink->output_section->vma); | |
| 12277 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12278 | r->r_addend = plt0; | |
| 12279 | } | |
| 4ce794b7 | 12280 | p = htab->glink->contents; |
| 176a0d42 | 12281 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12282 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12283 | p += 8; | |
| 12284 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| ad8e1ba5 | 12285 | p += 4; |
| ee4bf8d2 | 12286 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); |
| ad8e1ba5 | 12287 | p += 4; |
| ee4bf8d2 | 12288 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); |
| ad8e1ba5 | 12289 | p += 4; |
| 71a39c98 | 12290 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| ad8e1ba5 | 12291 | p += 4; |
| ee4bf8d2 | 12292 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); |
| ad8e1ba5 | 12293 | p += 4; |
| 71a39c98 | 12294 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); |
| ad8e1ba5 | 12295 | p += 4; |
| 71a39c98 | 12296 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); |
| ad8e1ba5 | 12297 | p += 4; |
| 71a39c98 | 12298 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); |
| ad8e1ba5 | 12299 | p += 4; |
| 71a39c98 | 12300 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); |
| ad8e1ba5 | 12301 | p += 4; |
| 71a39c98 | 12302 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); |
| ad8e1ba5 | 12303 | p += 4; |
| 4ce794b7 | 12304 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 12305 | p += 4; |
| ee4bf8d2 AM |
12306 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 12307 | { | |
| 12308 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 12309 | p += 4; | |
| 12310 | } | |
| ad8e1ba5 | 12311 | |
| 9f951329 AM |
12312 | /* Build the .glink lazy link call stubs. */ |
| 12313 | indx = 0; | |
| eea6121a | 12314 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 AM |
12315 | { |
| 12316 | if (indx < 0x8000) | |
| 12317 | { | |
| 4ce794b7 | 12318 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); |
| 9f951329 AM |
12319 | p += 4; |
| 12320 | } | |
| 12321 | else | |
| 12322 | { | |
| 4ce794b7 | 12323 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); |
| 9f951329 | 12324 | p += 4; |
| 4ce794b7 | 12325 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); |
| 9f951329 AM |
12326 | p += 4; |
| 12327 | } | |
| 4ce794b7 | 12328 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 12329 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 12330 | indx++; |
| 9f951329 AM |
12331 | p += 4; |
| 12332 | } | |
| eea6121a | 12333 | htab->glink->rawsize = p - htab->glink->contents; |
| 5d1634d7 | 12334 | } |
| 5d1634d7 | 12335 | |
| eea6121a | 12336 | if (htab->brlt->size != 0) |
| 721956f4 | 12337 | { |
| 4ce794b7 | 12338 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 12339 | htab->brlt->size); |
| 4ce794b7 | 12340 | if (htab->brlt->contents == NULL) |
| b34976b6 | 12341 | return FALSE; |
| 721956f4 | 12342 | } |
| ee75fd95 | 12343 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
12344 | { |
| 12345 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 12346 | htab->relbrlt->size); |
| 63bc6f6c AM |
12347 | if (htab->relbrlt->contents == NULL) |
| 12348 | return FALSE; | |
| 12349 | } | |
| 5d1634d7 | 12350 | |
| 58d180e8 AM |
12351 | if (htab->glink_eh_frame != NULL |
| 12352 | && htab->glink_eh_frame->size != 0) | |
| 12353 | { | |
| 12354 | bfd_vma val; | |
| 4bbe044a AM |
12355 | bfd_byte *last_fde; |
| 12356 | size_t last_fde_len, size, align, pad; | |
| 58d180e8 AM |
12357 | |
| 12358 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12359 | if (p == NULL) | |
| 12360 | return FALSE; | |
| 12361 | htab->glink_eh_frame->contents = p; | |
| 4bbe044a | 12362 | last_fde = p; |
| 58d180e8 AM |
12363 | |
| 12364 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; | |
| 12365 | ||
| 12366 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12367 | /* CIE length (rewrite in case little-endian). */ | |
| 4bbe044a AM |
12368 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; |
| 12369 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 58d180e8 AM |
12370 | p += sizeof (glink_eh_frame_cie); |
| 12371 | ||
| 12372 | for (stub_sec = htab->stub_bfd->sections; | |
| 12373 | stub_sec != NULL; | |
| 12374 | stub_sec = stub_sec->next) | |
| 12375 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12376 | { | |
| 4bbe044a AM |
12377 | last_fde = p; |
| 12378 | last_fde_len = 16; | |
| 58d180e8 AM |
12379 | /* FDE length. */ |
| 12380 | bfd_put_32 (htab->elf.dynobj, 16, p); | |
| 12381 | p += 4; | |
| 12382 | /* CIE pointer. */ | |
| 12383 | val = p - htab->glink_eh_frame->contents; | |
| 12384 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12385 | p += 4; | |
| 12386 | /* Offset to stub section. */ | |
| 12387 | val = (stub_sec->output_section->vma | |
| 12388 | + stub_sec->output_offset); | |
| 12389 | val -= (htab->glink_eh_frame->output_section->vma | |
| 12390 | + htab->glink_eh_frame->output_offset); | |
| 12391 | val -= p - htab->glink_eh_frame->contents; | |
| 12392 | if (val + 0x80000000 > 0xffffffff) | |
| 12393 | { | |
| 12394 | info->callbacks->einfo | |
| 8de848d8 | 12395 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), |
| 58d180e8 AM |
12396 | stub_sec->name); |
| 12397 | return FALSE; | |
| 12398 | } | |
| 12399 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12400 | p += 4; | |
| 12401 | /* stub section size. */ | |
| 12402 | bfd_put_32 (htab->elf.dynobj, stub_sec->rawsize, p); | |
| 12403 | p += 4; | |
| 12404 | /* Augmentation. */ | |
| 12405 | p += 1; | |
| 12406 | /* Pad. */ | |
| 12407 | p += 3; | |
| 12408 | } | |
| 12409 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12410 | { | |
| 4bbe044a AM |
12411 | last_fde = p; |
| 12412 | last_fde_len = 20; | |
| 58d180e8 AM |
12413 | /* FDE length. */ |
| 12414 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12415 | p += 4; | |
| 12416 | /* CIE pointer. */ | |
| 12417 | val = p - htab->glink_eh_frame->contents; | |
| 12418 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12419 | p += 4; | |
| 12420 | /* Offset to .glink. */ | |
| 12421 | val = (htab->glink->output_section->vma | |
| 12422 | + htab->glink->output_offset | |
| 12423 | + 8); | |
| 12424 | val -= (htab->glink_eh_frame->output_section->vma | |
| 12425 | + htab->glink_eh_frame->output_offset); | |
| 12426 | val -= p - htab->glink_eh_frame->contents; | |
| 12427 | if (val + 0x80000000 > 0xffffffff) | |
| 12428 | { | |
| 12429 | info->callbacks->einfo | |
| 8de848d8 | 12430 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), |
| 58d180e8 AM |
12431 | htab->glink->name); |
| 12432 | return FALSE; | |
| 12433 | } | |
| 12434 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12435 | p += 4; | |
| 12436 | /* .glink size. */ | |
| 12437 | bfd_put_32 (htab->elf.dynobj, htab->glink->rawsize - 8, p); | |
| 12438 | p += 4; | |
| 12439 | /* Augmentation. */ | |
| 12440 | p += 1; | |
| 12441 | ||
| 12442 | *p++ = DW_CFA_advance_loc + 1; | |
| 12443 | *p++ = DW_CFA_register; | |
| 12444 | *p++ = 65; | |
| 12445 | *p++ = 12; | |
| 12446 | *p++ = DW_CFA_advance_loc + 4; | |
| 12447 | *p++ = DW_CFA_restore_extended; | |
| 12448 | *p++ = 65; | |
| 12449 | } | |
| 4bbe044a AM |
12450 | /* Subsume any padding into the last FDE if user .eh_frame |
| 12451 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12452 | zero padding will be seen as a terminator. */ | |
| 12453 | size = p - htab->glink_eh_frame->contents; | |
| 12454 | align = 1; | |
| 12455 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12456 | align -= 1; | |
| 12457 | pad = ((size + align) & ~align) - size; | |
| 12458 | htab->glink_eh_frame->size = size + pad; | |
| 12459 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 58d180e8 AM |
12460 | } |
| 12461 | ||
| 721956f4 AM |
12462 | /* Build the stubs as directed by the stub hash table. */ |
| 12463 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 12464 | |
| aa8a7074 AM |
12465 | if (htab->relbrlt != NULL) |
| 12466 | htab->relbrlt->reloc_count = 0; | |
| 12467 | ||
| 794e51c0 AM |
12468 | if (htab->plt_stub_align != 0) |
| 12469 | for (stub_sec = htab->stub_bfd->sections; | |
| 12470 | stub_sec != NULL; | |
| 12471 | stub_sec = stub_sec->next) | |
| 12472 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12473 | stub_sec->size = ((stub_sec->size + (1 << htab->plt_stub_align) - 1) | |
| 12474 | & (-1 << htab->plt_stub_align)); | |
| 12475 | ||
| 721956f4 AM |
12476 | for (stub_sec = htab->stub_bfd->sections; |
| 12477 | stub_sec != NULL; | |
| 12478 | stub_sec = stub_sec->next) | |
| e717da7e AM |
12479 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 12480 | { | |
| 12481 | stub_sec_count += 1; | |
| eea6121a | 12482 | if (stub_sec->rawsize != stub_sec->size) |
| e717da7e AM |
12483 | break; |
| 12484 | } | |
| 5d1634d7 | 12485 | |
| 721956f4 | 12486 | if (stub_sec != NULL |
| 58d180e8 AM |
12487 | || htab->glink->rawsize != htab->glink->size |
| 12488 | || (htab->glink_eh_frame != NULL | |
| 12489 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 12490 | { |
| b34976b6 | 12491 | htab->stub_error = TRUE; |
| 8de848d8 | 12492 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 12493 | } |
| 721956f4 | 12494 | |
| d2a300cf AM |
12495 | if (htab->stub_error) |
| 12496 | return FALSE; | |
| 12497 | ||
| 12498 | if (stats != NULL) | |
| 12499 | { | |
| 12500 | *stats = bfd_malloc (500); | |
| 12501 | if (*stats == NULL) | |
| 12502 | return FALSE; | |
| 12503 | ||
| ee75fd95 | 12504 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
12505 | " branch %lu\n" |
| 12506 | " toc adjust %lu\n" | |
| 12507 | " long branch %lu\n" | |
| 12508 | " long toc adj %lu\n" | |
| 794e51c0 AM |
12509 | " plt call %lu\n" |
| 12510 | " plt call toc %lu"), | |
| e717da7e | 12511 | stub_sec_count, |
| ee75fd95 | 12512 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
12513 | htab->stub_count[ppc_stub_long_branch - 1], |
| 12514 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 12515 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 12516 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 AM |
12517 | htab->stub_count[ppc_stub_plt_call - 1], |
| 12518 | htab->stub_count[ppc_stub_plt_call_r2save - 1]); | |
| d2a300cf AM |
12519 | } |
| 12520 | return TRUE; | |
| 5bd4f169 AM |
12521 | } |
| 12522 | ||
| 99877b66 AM |
12523 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 12524 | ||
| 12525 | static bfd_boolean | |
| 12526 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 12527 | { | |
| 12528 | struct ppc_link_hash_entry *eh; | |
| 12529 | ||
| 12530 | if (h->root.type == bfd_link_hash_indirect) | |
| 12531 | return TRUE; | |
| 12532 | ||
| 99877b66 AM |
12533 | eh = (struct ppc_link_hash_entry *) h; |
| 12534 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 12535 | return TRUE; | |
| 12536 | ||
| 12537 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 12538 | return TRUE; | |
| 12539 | } | |
| 12540 | ||
| 12541 | void | |
| 12542 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 12543 | { | |
| 12544 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
12545 | |
| 12546 | if (htab != NULL) | |
| 12547 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
12548 | } |
| 12549 | ||
| 60124e18 AM |
12550 | /* What to do when ld finds relocations against symbols defined in |
| 12551 | discarded sections. */ | |
| 12552 | ||
| 12553 | static unsigned int | |
| 12554 | ppc64_elf_action_discarded (asection *sec) | |
| 12555 | { | |
| 12556 | if (strcmp (".opd", sec->name) == 0) | |
| 12557 | return 0; | |
| 12558 | ||
| 12559 | if (strcmp (".toc", sec->name) == 0) | |
| 12560 | return 0; | |
| 12561 | ||
| bce50a28 JJ |
12562 | if (strcmp (".toc1", sec->name) == 0) |
| 12563 | return 0; | |
| 12564 | ||
| 60124e18 AM |
12565 | return _bfd_elf_default_action_discarded (sec); |
| 12566 | } | |
| 12567 | ||
| 5bd4f169 AM |
12568 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 12569 | to handle the relocations for a section. | |
| 12570 | ||
| 12571 | The relocs are always passed as Rela structures; if the section | |
| 12572 | actually uses Rel structures, the r_addend field will always be | |
| 12573 | zero. | |
| 12574 | ||
| 12575 | This function is responsible for adjust the section contents as | |
| 12576 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 12577 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
12578 | necessary. |
| 12579 | ||
| 12580 | This function does not have to worry about setting the reloc | |
| 12581 | address or the reloc symbol index. | |
| 12582 | ||
| 12583 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 12584 | ||
| 12585 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 12586 | corresponding to the st_shndx field of each local symbol. | |
| 12587 | ||
| 12588 | The global hash table entry for the global symbols can be found | |
| 12589 | via elf_sym_hashes (input_bfd). | |
| 12590 | ||
| 1049f94e | 12591 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
12592 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 12593 | going to be the section symbol corresponding to the output | |
| 12594 | section, which means that the addend must be adjusted | |
| 12595 | accordingly. */ | |
| 12596 | ||
| b34976b6 | 12597 | static bfd_boolean |
| 4ce794b7 AM |
12598 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 12599 | struct bfd_link_info *info, | |
| 12600 | bfd *input_bfd, | |
| 12601 | asection *input_section, | |
| 12602 | bfd_byte *contents, | |
| 12603 | Elf_Internal_Rela *relocs, | |
| 12604 | Elf_Internal_Sym *local_syms, | |
| 12605 | asection **local_sections) | |
| 5bd4f169 | 12606 | { |
| 65f38f15 | 12607 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
12608 | Elf_Internal_Shdr *symtab_hdr; |
| 12609 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 AM |
12610 | Elf_Internal_Rela *rel; |
| 12611 | Elf_Internal_Rela *relend; | |
| 411e1bfb AM |
12612 | Elf_Internal_Rela outrel; |
| 12613 | bfd_byte *loc; | |
| 411e1bfb | 12614 | struct got_entry **local_got_ents; |
| 5bd4f169 | 12615 | bfd_vma TOCstart; |
| b34976b6 AM |
12616 | bfd_boolean ret = TRUE; |
| 12617 | bfd_boolean is_opd; | |
| 794e51c0 AM |
12618 | /* Assume 'at' branch hints. */ |
| 12619 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 12620 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 12621 | |
| 65f38f15 | 12622 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 12623 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
12624 | ppc_howto_init (); |
| 12625 | ||
| 65f38f15 | 12626 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
12627 | if (htab == NULL) |
| 12628 | return FALSE; | |
| ee75fd95 AM |
12629 | |
| 12630 | /* Don't relocate stub sections. */ | |
| 12631 | if (input_section->owner == htab->stub_bfd) | |
| 12632 | return TRUE; | |
| 12633 | ||
| 0c8d6e5c | 12634 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 12635 | |
| 411e1bfb | 12636 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 12637 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 12638 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 12639 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 12640 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 12641 | |
| 5bd4f169 AM |
12642 | rel = relocs; |
| 12643 | relend = relocs + input_section->reloc_count; | |
| 12644 | for (; rel < relend; rel++) | |
| 12645 | { | |
| 04c9666a | 12646 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 12647 | bfd_vma addend; |
| 5bd4f169 AM |
12648 | bfd_reloc_status_type r; |
| 12649 | Elf_Internal_Sym *sym; | |
| 12650 | asection *sec; | |
| 039b3fef AM |
12651 | struct elf_link_hash_entry *h_elf; |
| 12652 | struct ppc_link_hash_entry *h; | |
| 12653 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 12654 | const char *sym_name; |
| 0d4792f7 | 12655 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 12656 | bfd_vma toc_addend; |
| f961d9dd AM |
12657 | unsigned char tls_mask, tls_gd, tls_type; |
| 12658 | unsigned char sym_type; | |
| 5bd4f169 | 12659 | bfd_vma relocation; |
| b34976b6 AM |
12660 | bfd_boolean unresolved_reloc; |
| 12661 | bfd_boolean warned; | |
| bc30df16 | 12662 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 12663 | unsigned int insn; |
| e11840f9 | 12664 | unsigned int mask; |
| 721956f4 AM |
12665 | struct ppc_stub_hash_entry *stub_entry; |
| 12666 | bfd_vma max_br_offset; | |
| 12667 | bfd_vma from; | |
| 31c76678 | 12668 | const Elf_Internal_Rela orig_rel = *rel; |
| 5bd4f169 | 12669 | |
| 4ce794b7 | 12670 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 12671 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
12672 | |
| 12673 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 12674 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 12675 | proper TOC base to use. */ | |
| 12676 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| 12677 | && rel != relocs | |
| 12678 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
| 12679 | && is_opd) | |
| 12680 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
| 12681 | ||
| 4ce794b7 AM |
12682 | sym = NULL; |
| 12683 | sec = NULL; | |
| 039b3fef | 12684 | h_elf = NULL; |
| 4ce794b7 | 12685 | sym_name = NULL; |
| b34976b6 AM |
12686 | unresolved_reloc = FALSE; |
| 12687 | warned = FALSE; | |
| 65f38f15 | 12688 | |
| 0b13192e | 12689 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
12690 | { |
| 12691 | /* It's a local symbol. */ | |
| 74f0fb50 | 12692 | struct _opd_sec_data *opd; |
| 4025353c | 12693 | |
| 5bd4f169 AM |
12694 | sym = local_syms + r_symndx; |
| 12695 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 12696 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 12697 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 12698 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
12699 | opd = get_opd_info (sec); |
| 12700 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 12701 | { |
| 74f0fb50 | 12702 | long adjust = opd->adjust[(sym->st_value + rel->r_addend) / 8]; |
| 4025353c AM |
12703 | if (adjust == -1) |
| 12704 | relocation = 0; | |
| 12705 | else | |
| 4cc603a5 AM |
12706 | { |
| 12707 | /* If this is a relocation against the opd section sym | |
| 12708 | and we have edited .opd, adjust the reloc addend so | |
| 12709 | that ld -r and ld --emit-relocs output is correct. | |
| 12710 | If it is a reloc against some other .opd symbol, | |
| 12711 | then the symbol value will be adjusted later. */ | |
| 12712 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 12713 | rel->r_addend += adjust; | |
| 12714 | else | |
| 12715 | relocation += adjust; | |
| 12716 | } | |
| 1e2f5b6e | 12717 | } |
| 5bd4f169 AM |
12718 | } |
| 12719 | else | |
| 12720 | { | |
| b2a8e766 AM |
12721 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 12722 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 12723 | h_elf, sec, relocation, |
| b2a8e766 | 12724 | unresolved_reloc, warned); |
| 039b3fef AM |
12725 | sym_name = h_elf->root.root.string; |
| 12726 | sym_type = h_elf->type; | |
| b69fdb4e AM |
12727 | if (sec != NULL |
| 12728 | && sec->owner == output_bfd | |
| 12729 | && strcmp (sec->name, ".opd") == 0) | |
| 12730 | { | |
| 12731 | /* This is a symbol defined in a linker script. All | |
| 12732 | such are defined in output sections, even those | |
| 12733 | defined by simple assignment from a symbol defined in | |
| 12734 | an input section. Transfer the symbol to an | |
| 12735 | appropriate input .opd section, so that a branch to | |
| 12736 | this symbol will be mapped to the location specified | |
| 12737 | by the opd entry. */ | |
| 12738 | struct bfd_link_order *lo; | |
| 12739 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 12740 | if (lo->type == bfd_indirect_link_order) | |
| 12741 | { | |
| 12742 | asection *isec = lo->u.indirect.section; | |
| 12743 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 12744 | && h_elf->root.u.def.value < (isec->output_offset | |
| 12745 | + isec->size)) | |
| 12746 | { | |
| 12747 | h_elf->root.u.def.value -= isec->output_offset; | |
| 12748 | h_elf->root.u.def.section = isec; | |
| 12749 | sec = isec; | |
| 12750 | break; | |
| 12751 | } | |
| 12752 | } | |
| 12753 | } | |
| 5bd4f169 | 12754 | } |
| 039b3fef | 12755 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 12756 | |
| dbaa2011 | 12757 | if (sec != NULL && discarded_section (sec)) |
| e4067dbb | 12758 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
| 545fd46b MR |
12759 | rel, 1, relend, |
| 12760 | ppc64_elf_howto_table[r_type], 0, | |
| e4067dbb | 12761 | contents); |
| ab96bf03 AM |
12762 | |
| 12763 | if (info->relocatable) | |
| 12764 | continue; | |
| 12765 | ||
| f40da81b AM |
12766 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 12767 | { | |
| 12768 | relocation = (TOCstart | |
| 12769 | + htab->stub_group[input_section->id].toc_off); | |
| 12770 | sec = bfd_abs_section_ptr; | |
| 12771 | unresolved_reloc = FALSE; | |
| 12772 | } | |
| 12773 | ||
| 951fd09b AM |
12774 | /* TLS optimizations. Replace instruction sequences and relocs |
| 12775 | based on information we collected in tls_optimize. We edit | |
| 12776 | RELOCS so that --emit-relocs will output something sensible | |
| 12777 | for the final instruction stream. */ | |
| 12778 | tls_mask = 0; | |
| 12779 | tls_gd = 0; | |
| 0d4792f7 | 12780 | toc_symndx = 0; |
| 727fc41e AM |
12781 | if (h != NULL) |
| 12782 | tls_mask = h->tls_mask; | |
| 12783 | else if (local_got_ents != NULL) | |
| 411e1bfb | 12784 | { |
| e054468f AM |
12785 | struct plt_entry **local_plt = (struct plt_entry **) |
| 12786 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 12787 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 12788 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
12789 | tls_mask = lgot_masks[r_symndx]; |
| 12790 | } | |
| 12791 | if (tls_mask == 0 | |
| 12792 | && (r_type == R_PPC64_TLS | |
| 12793 | || r_type == R_PPC64_TLSGD | |
| 12794 | || r_type == R_PPC64_TLSLD)) | |
| 12795 | { | |
| 12796 | /* Check for toc tls entries. */ | |
| f961d9dd | 12797 | unsigned char *toc_tls; |
| 0d4792f7 | 12798 | |
| 727fc41e AM |
12799 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 12800 | &local_syms, rel, input_bfd)) | |
| 12801 | return FALSE; | |
| 0d4792f7 | 12802 | |
| 727fc41e AM |
12803 | if (toc_tls) |
| 12804 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
12805 | } |
| 12806 | ||
| 12807 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 12808 | relocs are used with non-tls syms. */ | |
| cf35638d | 12809 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
12810 | && r_type != R_PPC64_NONE |
| 12811 | && (h == NULL | |
| 039b3fef AM |
12812 | || h->elf.root.type == bfd_link_hash_defined |
| 12813 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
12814 | && (IS_PPC64_TLS_RELOC (r_type) |
| 12815 | != (sym_type == STT_TLS | |
| 12816 | || (sym_type == STT_SECTION | |
| 12817 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 12818 | { |
| 727fc41e AM |
12819 | if (tls_mask != 0 |
| 12820 | && (r_type == R_PPC64_TLS | |
| 12821 | || r_type == R_PPC64_TLSGD | |
| 12822 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
12823 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 12824 | ; | |
| 12825 | else | |
| 25f53a85 | 12826 | info->callbacks->einfo |
| 1d483afe | 12827 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
12828 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 12829 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 12830 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
12831 | ppc64_elf_howto_table[r_type]->name, |
| 12832 | sym_name); | |
| 411e1bfb AM |
12833 | } |
| 12834 | ||
| 12835 | /* Ensure reloc mapping code below stays sane. */ | |
| 12836 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 12837 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 12838 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 12839 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 12840 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 12841 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 12842 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 12843 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 12844 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 12845 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 12846 | abort (); | |
| 0d4792f7 | 12847 | |
| 411e1bfb AM |
12848 | switch (r_type) |
| 12849 | { | |
| 12850 | default: | |
| 411e1bfb AM |
12851 | break; |
| 12852 | ||
| ba761f19 AM |
12853 | case R_PPC64_LO_DS_OPT: |
| 12854 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 12855 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 12856 | abort (); | |
| 12857 | insn += (14u << 26) - (58u << 26); | |
| 12858 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 12859 | r_type = R_PPC64_TOC16_LO; | |
| 12860 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 12861 | break; | |
| 12862 | ||
| 411e1bfb AM |
12863 | case R_PPC64_TOC16: |
| 12864 | case R_PPC64_TOC16_LO: | |
| 12865 | case R_PPC64_TOC16_DS: | |
| 12866 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
12867 | { |
| 12868 | /* Check for toc tls entries. */ | |
| f961d9dd | 12869 | unsigned char *toc_tls; |
| 951fd09b | 12870 | int retval; |
| 411e1bfb | 12871 | |
| 3a71aa26 AM |
12872 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 12873 | &local_syms, rel, input_bfd); | |
| 951fd09b | 12874 | if (retval == 0) |
| 411e1bfb AM |
12875 | return FALSE; |
| 12876 | ||
| 12877 | if (toc_tls) | |
| 12878 | { | |
| 951fd09b | 12879 | tls_mask = *toc_tls; |
| 411e1bfb AM |
12880 | if (r_type == R_PPC64_TOC16_DS |
| 12881 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
12882 | { |
| 12883 | if (tls_mask != 0 | |
| 12884 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 12885 | goto toctprel; | |
| 12886 | } | |
| 411e1bfb | 12887 | else |
| 951fd09b AM |
12888 | { |
| 12889 | /* If we found a GD reloc pair, then we might be | |
| 12890 | doing a GD->IE transition. */ | |
| 12891 | if (retval == 2) | |
| 12892 | { | |
| 12893 | tls_gd = TLS_TPRELGD; | |
| 12894 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 12895 | goto tls_ldgd_opt; |
| 951fd09b AM |
12896 | } |
| 12897 | else if (retval == 3) | |
| 12898 | { | |
| 12899 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 12900 | goto tls_ldgd_opt; |
| 951fd09b AM |
12901 | } |
| 12902 | } | |
| 411e1bfb AM |
12903 | } |
| 12904 | } | |
| 12905 | break; | |
| 12906 | ||
| 9d6ded02 AM |
12907 | case R_PPC64_GOT_TPREL16_HI: |
| 12908 | case R_PPC64_GOT_TPREL16_HA: | |
| 12909 | if (tls_mask != 0 | |
| 12910 | && (tls_mask & TLS_TPREL) == 0) | |
| 12911 | { | |
| 12912 | rel->r_offset -= d_offset; | |
| 12913 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 12914 | r_type = R_PPC64_NONE; | |
| 12915 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 12916 | } | |
| 12917 | break; | |
| 12918 | ||
| 411e1bfb AM |
12919 | case R_PPC64_GOT_TPREL16_DS: |
| 12920 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
12921 | if (tls_mask != 0 |
| 12922 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 12923 | { |
| 81407a69 | 12924 | toctprel: |
| 4fe5ca5b | 12925 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
12926 | insn &= 31 << 21; |
| 12927 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 4fe5ca5b | 12928 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); |
| 411e1bfb | 12929 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
12930 | if (toc_symndx != 0) |
| 12931 | { | |
| 12932 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 12933 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
12934 | /* We changed the symbol. Start over in order to |
| 12935 | get h, sym, sec etc. right. */ | |
| 12936 | rel--; | |
| 12937 | continue; | |
| 12938 | } | |
| 12939 | else | |
| 12940 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
12941 | } |
| 12942 | break; | |
| 12943 | ||
| 12944 | case R_PPC64_TLS: | |
| 951fd09b AM |
12945 | if (tls_mask != 0 |
| 12946 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 12947 | { |
| 411e1bfb | 12948 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
12949 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 12950 | if (insn == 0) | |
| 411e1bfb | 12951 | abort (); |
| 411e1bfb | 12952 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 12953 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
12954 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 12955 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
12956 | r_type = R_PPC64_TPREL16_LO; |
| 12957 | if (toc_symndx != 0) | |
| 12958 | { | |
| 12959 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 12960 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
12961 | /* We changed the symbol. Start over in order to |
| 12962 | get h, sym, sec etc. right. */ | |
| 12963 | rel--; | |
| 12964 | continue; | |
| 12965 | } | |
| 12966 | else | |
| 12967 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
12968 | } |
| 12969 | break; | |
| 12970 | ||
| 411e1bfb AM |
12971 | case R_PPC64_GOT_TLSGD16_HI: |
| 12972 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
12973 | tls_gd = TLS_TPRELGD; |
| 12974 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 12975 | goto tls_gdld_hi; | |
| 12976 | break; | |
| 12977 | ||
| 411e1bfb AM |
12978 | case R_PPC64_GOT_TLSLD16_HI: |
| 12979 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 12980 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 12981 | { |
| 951fd09b AM |
12982 | tls_gdld_hi: |
| 12983 | if ((tls_mask & tls_gd) != 0) | |
| 12984 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 12985 | + R_PPC64_GOT_TPREL16_DS); | |
| 12986 | else | |
| 411e1bfb | 12987 | { |
| 4fe5ca5b | 12988 | rel->r_offset -= d_offset; |
| 727ac201 | 12989 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 12990 | r_type = R_PPC64_NONE; |
| 411e1bfb | 12991 | } |
| 951fd09b | 12992 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
12993 | } |
| 12994 | break; | |
| 12995 | ||
| 951fd09b AM |
12996 | case R_PPC64_GOT_TLSGD16: |
| 12997 | case R_PPC64_GOT_TLSGD16_LO: | |
| 12998 | tls_gd = TLS_TPRELGD; | |
| 12999 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13000 | goto tls_ldgd_opt; |
| 951fd09b | 13001 | break; |
| 411e1bfb | 13002 | |
| 951fd09b AM |
13003 | case R_PPC64_GOT_TLSLD16: |
| 13004 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13005 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13006 | { | |
| 3a71aa26 | 13007 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13008 | bfd_vma offset; |
| 13009 | ||
| 13010 | tls_ldgd_opt: | |
| 727fc41e AM |
13011 | offset = (bfd_vma) -1; |
| 13012 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13013 | __tls_get_addr calls, we must trust that the call | |
| 13014 | stays with its arg setup insns, ie. that the next | |
| 13015 | reloc is the __tls_get_addr call associated with | |
| 13016 | the current reloc. Edit both insns. */ | |
| 13017 | if (input_section->has_tls_get_addr_call | |
| 13018 | && rel + 1 < relend | |
| 13019 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13020 | htab->tls_get_addr, | |
| 13021 | htab->tls_get_addr_fd)) | |
| 13022 | offset = rel[1].r_offset; | |
| 102890f0 | 13023 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13024 | { |
| 102890f0 | 13025 | /* IE */ |
| 3a71aa26 AM |
13026 | insn1 = bfd_get_32 (output_bfd, |
| 13027 | contents + rel->r_offset - d_offset); | |
| 102890f0 AM |
13028 | insn1 &= (1 << 26) - (1 << 2); |
| 13029 | insn1 |= 58 << 26; /* ld */ | |
| 13030 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13031 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13032 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13033 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13034 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13035 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13036 | else |
| 102890f0 AM |
13037 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13038 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13039 | } | |
| 13040 | else | |
| 13041 | { | |
| 13042 | /* LE */ | |
| 13043 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
| 13044 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13045 | if (tls_gd == 0) | |
| 951fd09b | 13046 | { |
| 102890f0 | 13047 | /* Was an LD reloc. */ |
| 1d483afe AM |
13048 | if (toc_symndx) |
| 13049 | sec = local_sections[toc_symndx]; | |
| 13050 | for (r_symndx = 0; | |
| 13051 | r_symndx < symtab_hdr->sh_info; | |
| 13052 | r_symndx++) | |
| 13053 | if (local_sections[r_symndx] == sec) | |
| 13054 | break; | |
| 13055 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13056 | r_symndx = STN_UNDEF; |
| 102890f0 | 13057 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13058 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13059 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13060 | + sec->output_offset | |
| 13061 | + sec->output_section->vma); | |
| 951fd09b | 13062 | } |
| 102890f0 | 13063 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13064 | { |
| 13065 | r_symndx = toc_symndx; | |
| 13066 | rel->r_addend = toc_addend; | |
| 13067 | } | |
| 102890f0 AM |
13068 | r_type = R_PPC64_TPREL16_HA; |
| 13069 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13070 | if (offset != (bfd_vma) -1) |
| 13071 | { | |
| 13072 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13073 | R_PPC64_TPREL16_LO); | |
| 13074 | rel[1].r_offset = offset + d_offset; | |
| 13075 | rel[1].r_addend = rel->r_addend; | |
| 13076 | } | |
| 102890f0 | 13077 | } |
| 3a71aa26 AM |
13078 | bfd_put_32 (output_bfd, insn1, |
| 13079 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13080 | if (offset != (bfd_vma) -1) |
| 13081 | { | |
| 13082 | insn3 = bfd_get_32 (output_bfd, | |
| 13083 | contents + offset + 4); | |
| 13084 | if (insn3 == NOP | |
| 13085 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13086 | { | |
| 13087 | rel[1].r_offset += 4; | |
| 13088 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13089 | insn2 = NOP; | |
| 13090 | } | |
| 13091 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13092 | } | |
| 13093 | if ((tls_mask & tls_gd) == 0 | |
| 13094 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13095 | { | |
| 13096 | /* We changed the symbol. Start over in order | |
| 13097 | to get h, sym, sec etc. right. */ | |
| 13098 | rel--; | |
| 13099 | continue; | |
| 13100 | } | |
| 13101 | } | |
| 13102 | break; | |
| 13103 | ||
| 13104 | case R_PPC64_TLSGD: | |
| 13105 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13106 | { | |
| 13107 | unsigned int insn2, insn3; | |
| 13108 | bfd_vma offset = rel->r_offset; | |
| 13109 | ||
| 13110 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13111 | { | |
| 13112 | /* IE */ | |
| 13113 | r_type = R_PPC64_NONE; | |
| 13114 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13115 | } | |
| 13116 | else | |
| 13117 | { | |
| 13118 | /* LE */ | |
| 13119 | if (toc_symndx != 0) | |
| 13120 | { | |
| 13121 | r_symndx = toc_symndx; | |
| 13122 | rel->r_addend = toc_addend; | |
| 13123 | } | |
| 13124 | r_type = R_PPC64_TPREL16_LO; | |
| 13125 | rel->r_offset = offset + d_offset; | |
| 13126 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13127 | } | |
| 13128 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13129 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13130 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13131 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13132 | insn3 = bfd_get_32 (output_bfd, |
| 13133 | contents + offset + 4); | |
| 102890f0 AM |
13134 | if (insn3 == NOP |
| 13135 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13136 | { | |
| 727fc41e | 13137 | rel->r_offset += 4; |
| 3a71aa26 AM |
13138 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13139 | insn2 = NOP; | |
| 102890f0 | 13140 | } |
| 102890f0 | 13141 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13142 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| 102890f0 | 13143 | { |
| 102890f0 AM |
13144 | rel--; |
| 13145 | continue; | |
| 411e1bfb | 13146 | } |
| 411e1bfb | 13147 | } |
| 411e1bfb AM |
13148 | break; |
| 13149 | ||
| 727fc41e AM |
13150 | case R_PPC64_TLSLD: |
| 13151 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13152 | { | |
| 13153 | unsigned int insn2, insn3; | |
| 13154 | bfd_vma offset = rel->r_offset; | |
| 13155 | ||
| 13156 | if (toc_symndx) | |
| 13157 | sec = local_sections[toc_symndx]; | |
| 13158 | for (r_symndx = 0; | |
| 13159 | r_symndx < symtab_hdr->sh_info; | |
| 13160 | r_symndx++) | |
| 13161 | if (local_sections[r_symndx] == sec) | |
| 13162 | break; | |
| 13163 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13164 | r_symndx = STN_UNDEF; |
| 727fc41e | 13165 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13166 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13167 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13168 | + sec->output_offset | |
| 13169 | + sec->output_section->vma); | |
| 13170 | ||
| 13171 | r_type = R_PPC64_TPREL16_LO; | |
| 13172 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13173 | rel->r_offset = offset + d_offset; | |
| 13174 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13175 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13176 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13177 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13178 | insn3 = bfd_get_32 (output_bfd, | |
| 13179 | contents + offset + 4); | |
| 13180 | if (insn3 == NOP | |
| 13181 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13182 | { | |
| 13183 | rel->r_offset += 4; | |
| 13184 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13185 | insn2 = NOP; | |
| 13186 | } | |
| 13187 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13188 | rel--; | |
| 13189 | continue; | |
| 13190 | } | |
| 13191 | break; | |
| 13192 | ||
| 411e1bfb | 13193 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13194 | if (rel + 1 < relend |
| 13195 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13196 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13197 | { |
| 951fd09b AM |
13198 | if ((tls_mask & TLS_GD) == 0) |
| 13199 | { | |
| 13200 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13201 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13202 | r_type = R_PPC64_TPREL64; | |
| 13203 | else | |
| 13204 | { | |
| 4ce794b7 | 13205 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13206 | r_type = R_PPC64_NONE; |
| 13207 | } | |
| 13208 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13209 | } | |
| 13210 | } | |
| 13211 | else | |
| 13212 | { | |
| 13213 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13214 | { |
| 4ce794b7 | 13215 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13216 | r_type = R_PPC64_NONE; |
| 951fd09b | 13217 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13218 | } |
| 411e1bfb AM |
13219 | } |
| 13220 | break; | |
| 13221 | ||
| 13222 | case R_PPC64_TPREL64: | |
| 951fd09b | 13223 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13224 | { |
| 13225 | r_type = R_PPC64_NONE; | |
| 13226 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13227 | } | |
| 13228 | break; | |
| 13229 | } | |
| 13230 | ||
| 13231 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13232 | insn = 0; |
| b25116a9 AM |
13233 | max_br_offset = 1 << 25; |
| 13234 | addend = rel->r_addend; | |
| bc30df16 | 13235 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13236 | switch (r_type) |
| 5bd4f169 AM |
13237 | { |
| 13238 | default: | |
| 65f38f15 | 13239 | break; |
| 5bd4f169 | 13240 | |
| 3b421ab3 AM |
13241 | case R_PPC64_TOCSAVE: |
| 13242 | if (relocation + addend == (rel->r_offset | |
| 13243 | + input_section->output_offset | |
| 13244 | + input_section->output_section->vma) | |
| 13245 | && tocsave_find (htab, NO_INSERT, | |
| 13246 | &local_syms, rel, input_bfd)) | |
| 13247 | { | |
| 13248 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13249 | if (insn == NOP | |
| 13250 | || insn == CROR_151515 || insn == CROR_313131) | |
| 13251 | bfd_put_32 (input_bfd, STD_R2_40R1, | |
| 13252 | contents + rel->r_offset); | |
| 13253 | } | |
| 13254 | break; | |
| 13255 | ||
| 65f38f15 AM |
13256 | /* Branch taken prediction relocations. */ |
| 13257 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13258 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13259 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13260 | /* Fall thru. */ | |
| 65f38f15 | 13261 | |
| 86c76c7b | 13262 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13263 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13264 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13265 | insn |= bfd_get_32 (output_bfd, |
| 13266 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13267 | /* Fall thru. */ |
| 86c76c7b | 13268 | |
| b25116a9 AM |
13269 | case R_PPC64_REL14: |
| 13270 | max_br_offset = 1 << 15; | |
| 13271 | /* Fall thru. */ | |
| 5bd4f169 | 13272 | |
| 65f38f15 | 13273 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
13274 | /* Calls to functions with a different TOC, such as calls to |
| 13275 | shared objects, need to alter the TOC pointer. This is | |
| 13276 | done using a linkage stub. A REL24 branching to these | |
| 13277 | linkage stubs needs to be followed by a nop, as the nop | |
| 13278 | will be replaced with an instruction to restore the TOC | |
| 13279 | base pointer. */ | |
| 8387904d | 13280 | fdh = h; |
| b31867b6 AM |
13281 | if (h != NULL |
| 13282 | && h->oh != NULL | |
| 13283 | && h->oh->is_func_descriptor) | |
| 13284 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
13285 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 13286 | htab); | |
| 6abec6bc | 13287 | if (stub_entry != NULL |
| ad8e1ba5 | 13288 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 13289 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
13290 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 13291 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 13292 | { |
| b25116a9 | 13293 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 13294 | |
| ba8ca3e7 AM |
13295 | /* All of these stubs will modify r2, so there must be a |
| 13296 | branch and link followed by a nop. The nop is | |
| 13297 | replaced by an insn to restore r2. */ | |
| eea6121a | 13298 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 13299 | { |
| ba8ca3e7 AM |
13300 | unsigned long br; |
| 13301 | ||
| 13302 | br = bfd_get_32 (input_bfd, | |
| 13303 | contents + rel->r_offset); | |
| 13304 | if ((br & 1) != 0) | |
| 41bd81ab | 13305 | { |
| ba8ca3e7 AM |
13306 | unsigned long nop; |
| 13307 | ||
| 13308 | nop = bfd_get_32 (input_bfd, | |
| 13309 | contents + rel->r_offset + 4); | |
| 13310 | if (nop == NOP | |
| 13311 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 13312 | { |
| ba8ca3e7 AM |
13313 | if (h != NULL |
| 13314 | && (h == htab->tls_get_addr_fd | |
| 13315 | || h == htab->tls_get_addr) | |
| 13316 | && !htab->no_tls_get_addr_opt) | |
| 13317 | { | |
| 13318 | /* Special stub used, leave nop alone. */ | |
| 13319 | } | |
| 13320 | else | |
| 13321 | bfd_put_32 (input_bfd, LD_R2_40R1, | |
| 13322 | contents + rel->r_offset + 4); | |
| 13323 | can_plt_call = TRUE; | |
| a7f2871e | 13324 | } |
| 41bd81ab | 13325 | } |
| 5bd4f169 | 13326 | } |
| 721956f4 | 13327 | |
| ba8ca3e7 | 13328 | if (!can_plt_call && h != NULL) |
| 721956f4 | 13329 | { |
| ba8ca3e7 AM |
13330 | const char *name = h->elf.root.root.string; |
| 13331 | ||
| 13332 | if (*name == '.') | |
| 13333 | ++name; | |
| 13334 | ||
| 13335 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 13336 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 13337 | { |
| ba8ca3e7 AM |
13338 | /* Allow crt1 branch to go via a toc adjusting |
| 13339 | stub. Other calls that never return could do | |
| 13340 | the same, if we could detect such. */ | |
| b25116a9 | 13341 | can_plt_call = TRUE; |
| 6ab189d5 | 13342 | } |
| ba8ca3e7 AM |
13343 | } |
| 13344 | ||
| 13345 | if (!can_plt_call) | |
| 13346 | { | |
| 13347 | /* g++ as of 20130507 emits self-calls without a | |
| 13348 | following nop. This is arguably wrong since we | |
| 13349 | have conflicting information. On the one hand a | |
| 13350 | global symbol and on the other a local call | |
| 13351 | sequence, but don't error for this special case. | |
| 13352 | It isn't possible to cheaply verify we have | |
| 13353 | exactly such a call. Allow all calls to the same | |
| 13354 | section. */ | |
| 13355 | asection *code_sec = sec; | |
| 13356 | ||
| 13357 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 13358 | { |
| ba8ca3e7 AM |
13359 | bfd_vma off = (relocation + addend |
| 13360 | - sec->output_section->vma | |
| 13361 | - sec->output_offset); | |
| bc30df16 | 13362 | |
| ba8ca3e7 | 13363 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 13364 | } |
| ba8ca3e7 AM |
13365 | if (code_sec == input_section) |
| 13366 | can_plt_call = TRUE; | |
| 13367 | } | |
| 13368 | ||
| 13369 | if (!can_plt_call) | |
| 13370 | { | |
| 13371 | info->callbacks->einfo | |
| 13372 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13373 | "recompile with -fPIC"), | |
| 13374 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 13375 | ||
| 13376 | bfd_set_error (bfd_error_bad_value); | |
| 13377 | ret = FALSE; | |
| 721956f4 AM |
13378 | } |
| 13379 | ||
| b25116a9 | 13380 | if (can_plt_call |
| 794e51c0 AM |
13381 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 13382 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
13383 | unresolved_reloc = FALSE; |
| 13384 | } | |
| 13385 | ||
| 6abec6bc AM |
13386 | if ((stub_entry == NULL |
| 13387 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 13388 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
13389 | && get_opd_info (sec) != NULL) |
| 13390 | { | |
| 13391 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
13392 | bfd_vma off = (relocation + addend |
| 13393 | - sec->output_section->vma | |
| 13394 | - sec->output_offset); | |
| aef36ac1 | 13395 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
13396 | if (dest != (bfd_vma) -1) |
| 13397 | { | |
| 13398 | relocation = dest; | |
| 13399 | addend = 0; | |
| bc30df16 | 13400 | reloc_dest = DEST_OPD; |
| 8387904d AM |
13401 | } |
| 13402 | } | |
| 13403 | ||
| b25116a9 AM |
13404 | /* If the branch is out of reach we ought to have a long |
| 13405 | branch stub. */ | |
| 13406 | from = (rel->r_offset | |
| 13407 | + input_section->output_offset | |
| 13408 | + input_section->output_section->vma); | |
| 13409 | ||
| 6911b7dc AM |
13410 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 13411 | ? fdh->elf.other | |
| 13412 | : sym->st_other); | |
| 13413 | ||
| 6abec6bc AM |
13414 | if (stub_entry != NULL |
| 13415 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 13416 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 13417 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 13418 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 13419 | || (relocation + addend - from + max_br_offset | |
| 13420 | < 2 * max_br_offset))) | |
| 13421 | /* Don't use the stub if this branch is in range. */ | |
| 13422 | stub_entry = NULL; | |
| b25116a9 AM |
13423 | |
| 13424 | if (stub_entry != NULL) | |
| 13425 | { | |
| 13426 | /* Munge up the value and addend so that we call the stub | |
| 13427 | rather than the procedure directly. */ | |
| 13428 | relocation = (stub_entry->stub_offset | |
| 13429 | + stub_entry->stub_sec->output_offset | |
| 13430 | + stub_entry->stub_sec->output_section->vma); | |
| 13431 | addend = 0; | |
| bc30df16 | 13432 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 13433 | |
| 794e51c0 AM |
13434 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 13435 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13436 | && (ALWAYS_EMIT_R2SAVE | |
| 13437 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
13438 | && rel + 1 < relend |
| 13439 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13440 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 13441 | relocation += 4; | |
| b25116a9 AM |
13442 | } |
| 13443 | ||
| 13444 | if (insn != 0) | |
| 13445 | { | |
| 794e51c0 | 13446 | if (is_isa_v2) |
| 721956f4 | 13447 | { |
| b25116a9 AM |
13448 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 13449 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 13450 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 13451 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 13452 | insn |= 0x02 << 21; | |
| 13453 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 13454 | insn |= 0x08 << 21; | |
| 13455 | else | |
| 13456 | break; | |
| 13457 | } | |
| 13458 | else | |
| 13459 | { | |
| 13460 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 13461 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 13462 | insn ^= 0x01 << 21; |
| 721956f4 | 13463 | } |
| b25116a9 AM |
13464 | |
| 13465 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 13466 | } |
| e86ce104 | 13467 | |
| 06da1e8e AM |
13468 | /* NOP out calls to undefined weak functions. |
| 13469 | We can thus call a weak function without first | |
| 13470 | checking whether the function is defined. */ | |
| b25116a9 | 13471 | else if (h != NULL |
| 039b3fef | 13472 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 13473 | && h->elf.dynindx == -1 |
| b25116a9 AM |
13474 | && r_type == R_PPC64_REL24 |
| 13475 | && relocation == 0 | |
| 4cc603a5 | 13476 | && addend == 0) |
| e86ce104 | 13477 | { |
| 06da1e8e AM |
13478 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 13479 | continue; | |
| e86ce104 | 13480 | } |
| 65f38f15 AM |
13481 | break; |
| 13482 | } | |
| 5bd4f169 | 13483 | |
| 65f38f15 | 13484 | /* Set `addend'. */ |
| 411e1bfb | 13485 | tls_type = 0; |
| 65f38f15 AM |
13486 | switch (r_type) |
| 13487 | { | |
| 13488 | default: | |
| 25f53a85 | 13489 | info->callbacks->einfo |
| bc30df16 | 13490 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 13491 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 13492 | |
| 65f38f15 | 13493 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 13494 | ret = FALSE; |
| 65f38f15 | 13495 | continue; |
| 5bd4f169 | 13496 | |
| 65f38f15 | 13497 | case R_PPC64_NONE: |
| 411e1bfb | 13498 | case R_PPC64_TLS: |
| 727fc41e AM |
13499 | case R_PPC64_TLSGD: |
| 13500 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 13501 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
13502 | case R_PPC64_GNU_VTINHERIT: |
| 13503 | case R_PPC64_GNU_VTENTRY: | |
| 65f38f15 | 13504 | continue; |
| 5bd4f169 AM |
13505 | |
| 13506 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 13507 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 13508 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 13509 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
13510 | case R_PPC64_GOT_TLSGD16: |
| 13511 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13512 | case R_PPC64_GOT_TLSGD16_HI: | |
| 13513 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 13514 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
13515 | goto dogot; |
| 13516 | ||
| 13517 | case R_PPC64_GOT_TLSLD16: | |
| 13518 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13519 | case R_PPC64_GOT_TLSLD16_HI: | |
| 13520 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13521 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
13522 | goto dogot; |
| 13523 | ||
| 13524 | case R_PPC64_GOT_TPREL16_DS: | |
| 13525 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 13526 | case R_PPC64_GOT_TPREL16_HI: | |
| 13527 | case R_PPC64_GOT_TPREL16_HA: | |
| 13528 | tls_type = TLS_TLS | TLS_TPREL; | |
| 13529 | goto dogot; | |
| 13530 | ||
| 13531 | case R_PPC64_GOT_DTPREL16_DS: | |
| 13532 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 13533 | case R_PPC64_GOT_DTPREL16_HI: | |
| 13534 | case R_PPC64_GOT_DTPREL16_HA: | |
| 13535 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 13536 | goto dogot; | |
| 13537 | ||
| 65f38f15 AM |
13538 | case R_PPC64_GOT16: |
| 13539 | case R_PPC64_GOT16_LO: | |
| 13540 | case R_PPC64_GOT16_HI: | |
| 13541 | case R_PPC64_GOT16_HA: | |
| 13542 | case R_PPC64_GOT16_DS: | |
| 13543 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 13544 | dogot: |
| 5bd4f169 AM |
13545 | { |
| 13546 | /* Relocation is to the entry for this symbol in the global | |
| 13547 | offset table. */ | |
| e717da7e | 13548 | asection *got; |
| d881513a | 13549 | bfd_vma *offp; |
| 5bd4f169 | 13550 | bfd_vma off; |
| d881513a | 13551 | unsigned long indx = 0; |
| 927be08e | 13552 | struct got_entry *ent; |
| 65f38f15 | 13553 | |
| d881513a AM |
13554 | if (tls_type == (TLS_TLS | TLS_LD) |
| 13555 | && (h == NULL | |
| f5385ebf | 13556 | || !h->elf.def_dynamic)) |
| 927be08e | 13557 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 13558 | else |
| 5bd4f169 | 13559 | { |
| 5bd4f169 | 13560 | |
| d881513a AM |
13561 | if (h != NULL) |
| 13562 | { | |
| 13563 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 039b3fef AM |
13564 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
| 13565 | &h->elf) | |
| d881513a | 13566 | || (info->shared |
| 726d3ab0 | 13567 | && SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| d881513a AM |
13568 | /* This is actually a static link, or it is a |
| 13569 | -Bsymbolic link and the symbol is defined | |
| 13570 | locally, or the symbol was forced to be local | |
| 13571 | because of a version file. */ | |
| 13572 | ; | |
| 13573 | else | |
| 13574 | { | |
| 14acf4dc | 13575 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 13576 | indx = h->elf.dynindx; |
| d881513a AM |
13577 | unresolved_reloc = FALSE; |
| 13578 | } | |
| 039b3fef | 13579 | ent = h->elf.got.glist; |
| d881513a | 13580 | } |
| 411e1bfb | 13581 | else |
| 5bd4f169 | 13582 | { |
| d881513a AM |
13583 | if (local_got_ents == NULL) |
| 13584 | abort (); | |
| 13585 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 13586 | } |
| d881513a AM |
13587 | |
| 13588 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 13589 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 13590 | && ent->owner == input_bfd |
| d881513a AM |
13591 | && ent->tls_type == tls_type) |
| 13592 | break; | |
| 5bd4f169 | 13593 | } |
| 411e1bfb | 13594 | |
| 927be08e AM |
13595 | if (ent == NULL) |
| 13596 | abort (); | |
| 13597 | if (ent->is_indirect) | |
| 13598 | ent = ent->got.ent; | |
| 13599 | offp = &ent->got.offset; | |
| 13600 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
13601 | if (got == NULL) |
| 13602 | abort (); | |
| 13603 | ||
| 411e1bfb AM |
13604 | /* The offset must always be a multiple of 8. We use the |
| 13605 | least significant bit to record whether we have already | |
| 13606 | processed this entry. */ | |
| d881513a | 13607 | off = *offp; |
| 411e1bfb AM |
13608 | if ((off & 1) != 0) |
| 13609 | off &= ~1; | |
| 5bd4f169 AM |
13610 | else |
| 13611 | { | |
| 411e1bfb AM |
13612 | /* Generate relocs for the dynamic linker, except in |
| 13613 | the case of TLSLD where we'll use one entry per | |
| 13614 | module. */ | |
| 25f23106 AM |
13615 | asection *relgot; |
| 13616 | bfd_boolean ifunc; | |
| e717da7e | 13617 | |
| d881513a | 13618 | *offp = off | 1; |
| 25f23106 AM |
13619 | relgot = NULL; |
| 13620 | ifunc = (h != NULL | |
| 13621 | ? h->elf.type == STT_GNU_IFUNC | |
| 13622 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 13623 | if (ifunc) |
| 25f23106 | 13624 | relgot = htab->reliplt; |
| 19e08130 AM |
13625 | else if ((info->shared || indx != 0) |
| 13626 | && (h == NULL | |
| 13627 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 13628 | && !h->elf.def_dynamic) | |
| 13629 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 13630 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 13631 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 13632 | if (relgot != NULL) |
| 5bd4f169 | 13633 | { |
| e717da7e AM |
13634 | outrel.r_offset = (got->output_section->vma |
| 13635 | + got->output_offset | |
| 411e1bfb | 13636 | + off); |
| 4cc603a5 | 13637 | outrel.r_addend = addend; |
| d881513a | 13638 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 13639 | { |
| 411e1bfb | 13640 | outrel.r_addend = 0; |
| e515b051 | 13641 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
13642 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 13643 | { | |
| e717da7e AM |
13644 | loc = relgot->contents; |
| 13645 | loc += (relgot->reloc_count++ | |
| d881513a AM |
13646 | * sizeof (Elf64_External_Rela)); |
| 13647 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 13648 | &outrel, loc); | |
| e515b051 | 13649 | outrel.r_offset += 8; |
| 4cc603a5 | 13650 | outrel.r_addend = addend; |
| d881513a AM |
13651 | outrel.r_info |
| 13652 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 13653 | } |
| 411e1bfb | 13654 | } |
| 951fd09b | 13655 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 13656 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 13657 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 13658 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
13659 | else if (indx != 0) |
| 13660 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 13661 | else | |
| 81407a69 | 13662 | { |
| 25f23106 AM |
13663 | if (ifunc) |
| 13664 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 13665 | else | |
| 13666 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
13667 | |
| 13668 | /* Write the .got section contents for the sake | |
| 13669 | of prelink. */ | |
| e717da7e | 13670 | loc = got->contents + off; |
| 23fbd6fa JJ |
13671 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 13672 | loc); | |
| 81407a69 | 13673 | } |
| 81407a69 AM |
13674 | |
| 13675 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
13676 | { |
| 13677 | outrel.r_addend += relocation; | |
| 13678 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| e1918d23 | 13679 | outrel.r_addend -= htab->elf.tls_sec->vma; |
| e515b051 | 13680 | } |
| e717da7e AM |
13681 | loc = relgot->contents; |
| 13682 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
13683 | * sizeof (Elf64_External_Rela)); |
| 13684 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 13685 | } | |
| 13686 | ||
| ad8e1ba5 | 13687 | /* Init the .got section contents here if we're not |
| 81407a69 | 13688 | emitting a reloc. */ |
| d881513a | 13689 | else |
| 411e1bfb | 13690 | { |
| 4cc603a5 | 13691 | relocation += addend; |
| 7b609f53 AM |
13692 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 13693 | relocation = 1; | |
| 13694 | else if (tls_type != 0) | |
| 411e1bfb | 13695 | { |
| e1918d23 | 13696 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; |
| 7b609f53 | 13697 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 13698 | relocation += DTP_OFFSET - TP_OFFSET; |
| 5bd4f169 | 13699 | |
| 7b609f53 AM |
13700 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 13701 | { | |
| 13702 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 13703 | got->contents + off + 8); |
| 7b609f53 AM |
13704 | relocation = 1; |
| 13705 | } | |
| 411e1bfb | 13706 | } |
| 7b609f53 | 13707 | |
| 411e1bfb | 13708 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 13709 | got->contents + off); |
| 5bd4f169 AM |
13710 | } |
| 13711 | } | |
| 13712 | ||
| 65f38f15 AM |
13713 | if (off >= (bfd_vma) -2) |
| 13714 | abort (); | |
| 13715 | ||
| bf102f86 AM |
13716 | relocation = got->output_section->vma + got->output_offset + off; |
| 13717 | addend = -(TOCstart + htab->stub_group[input_section->id].toc_off); | |
| 5bd4f169 | 13718 | } |
| 65f38f15 AM |
13719 | break; |
| 13720 | ||
| 13721 | case R_PPC64_PLT16_HA: | |
| 13722 | case R_PPC64_PLT16_HI: | |
| 13723 | case R_PPC64_PLT16_LO: | |
| 13724 | case R_PPC64_PLT32: | |
| 13725 | case R_PPC64_PLT64: | |
| 13726 | /* Relocation is to the entry for this symbol in the | |
| 13727 | procedure linkage table. */ | |
| 13728 | ||
| 13729 | /* Resolve a PLT reloc against a local symbol directly, | |
| 13730 | without using the procedure linkage table. */ | |
| 13731 | if (h == NULL) | |
| 13732 | break; | |
| 13733 | ||
| 411e1bfb AM |
13734 | /* It's possible that we didn't make a PLT entry for this |
| 13735 | symbol. This happens when statically linking PIC code, | |
| 13736 | or when using -Bsymbolic. Go find a match if there is a | |
| 13737 | PLT entry. */ | |
| 4ce794b7 | 13738 | if (htab->plt != NULL) |
| 65f38f15 | 13739 | { |
| 411e1bfb | 13740 | struct plt_entry *ent; |
| 039b3fef | 13741 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
| 31c76678 | 13742 | if (ent->addend == orig_rel.r_addend |
| 411e1bfb AM |
13743 | && ent->plt.offset != (bfd_vma) -1) |
| 13744 | { | |
| 4ce794b7 AM |
13745 | relocation = (htab->plt->output_section->vma |
| 13746 | + htab->plt->output_offset | |
| 411e1bfb AM |
13747 | + ent->plt.offset); |
| 13748 | unresolved_reloc = FALSE; | |
| 13749 | } | |
| 65f38f15 | 13750 | } |
| 65f38f15 | 13751 | break; |
| 5bd4f169 | 13752 | |
| 0b13192e AM |
13753 | case R_PPC64_TOC: |
| 13754 | /* Relocation value is TOC base. */ | |
| 13755 | relocation = TOCstart; | |
| cf35638d | 13756 | if (r_symndx == STN_UNDEF) |
| 0b13192e | 13757 | relocation += htab->stub_group[input_section->id].toc_off; |
| 8517fae7 AM |
13758 | else if (unresolved_reloc) |
| 13759 | ; | |
| 13760 | else if (sec != NULL && sec->id <= htab->top_id) | |
| 0b13192e AM |
13761 | relocation += htab->stub_group[sec->id].toc_off; |
| 13762 | else | |
| 13763 | unresolved_reloc = TRUE; | |
| ab96bf03 | 13764 | goto dodyn; |
| 0b13192e | 13765 | |
| 5bd4f169 AM |
13766 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 13767 | which is the address of the start of the TOC plus 0x8000. | |
| 13768 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 13769 | in this order. */ | |
| 65f38f15 AM |
13770 | case R_PPC64_TOC16: |
| 13771 | case R_PPC64_TOC16_LO: | |
| 13772 | case R_PPC64_TOC16_HI: | |
| 13773 | case R_PPC64_TOC16_DS: | |
| 13774 | case R_PPC64_TOC16_LO_DS: | |
| 13775 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 13776 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
| 5bd4f169 AM |
13777 | break; |
| 13778 | ||
| 13779 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
13780 | case R_PPC64_SECTOFF: |
| 13781 | case R_PPC64_SECTOFF_LO: | |
| 13782 | case R_PPC64_SECTOFF_HI: | |
| 13783 | case R_PPC64_SECTOFF_DS: | |
| 13784 | case R_PPC64_SECTOFF_LO_DS: | |
| 13785 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 13786 | if (sec != NULL) |
| 65f38f15 | 13787 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
13788 | break; |
| 13789 | ||
| 25f23106 AM |
13790 | case R_PPC64_REL16: |
| 13791 | case R_PPC64_REL16_LO: | |
| 13792 | case R_PPC64_REL16_HI: | |
| 13793 | case R_PPC64_REL16_HA: | |
| 13794 | break; | |
| 13795 | ||
| 721956f4 AM |
13796 | case R_PPC64_REL14: |
| 13797 | case R_PPC64_REL14_BRNTAKEN: | |
| 13798 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
13799 | case R_PPC64_REL24: |
| 13800 | break; | |
| 13801 | ||
| 411e1bfb AM |
13802 | case R_PPC64_TPREL16: |
| 13803 | case R_PPC64_TPREL16_LO: | |
| 13804 | case R_PPC64_TPREL16_HI: | |
| 13805 | case R_PPC64_TPREL16_HA: | |
| 13806 | case R_PPC64_TPREL16_DS: | |
| 13807 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
13808 | case R_PPC64_TPREL16_HIGH: |
| 13809 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
13810 | case R_PPC64_TPREL16_HIGHER: |
| 13811 | case R_PPC64_TPREL16_HIGHERA: | |
| 13812 | case R_PPC64_TPREL16_HIGHEST: | |
| 13813 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
13814 | if (h != NULL |
| 13815 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 13816 | && h->elf.dynindx == -1) | |
| 13817 | { | |
| 13818 | /* Make this relocation against an undefined weak symbol | |
| 13819 | resolve to zero. This is really just a tweak, since | |
| 13820 | code using weak externs ought to check that they are | |
| 13821 | defined before using them. */ | |
| 13822 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 13823 | ||
| 13824 | insn = bfd_get_32 (output_bfd, p); | |
| 13825 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 13826 | if (insn != 0) | |
| 13827 | bfd_put_32 (output_bfd, insn, p); | |
| 13828 | break; | |
| 13829 | } | |
| e1918d23 | 13830 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
| 411e1bfb AM |
13831 | if (info->shared) |
| 13832 | /* The TPREL16 relocs shouldn't really be used in shared | |
| 13833 | libs as they will result in DT_TEXTREL being set, but | |
| 13834 | support them anyway. */ | |
| 13835 | goto dodyn; | |
| 13836 | break; | |
| 13837 | ||
| 13838 | case R_PPC64_DTPREL16: | |
| 13839 | case R_PPC64_DTPREL16_LO: | |
| 13840 | case R_PPC64_DTPREL16_HI: | |
| 13841 | case R_PPC64_DTPREL16_HA: | |
| 13842 | case R_PPC64_DTPREL16_DS: | |
| 13843 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
13844 | case R_PPC64_DTPREL16_HIGH: |
| 13845 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
13846 | case R_PPC64_DTPREL16_HIGHER: |
| 13847 | case R_PPC64_DTPREL16_HIGHERA: | |
| 13848 | case R_PPC64_DTPREL16_HIGHEST: | |
| 13849 | case R_PPC64_DTPREL16_HIGHESTA: | |
| e1918d23 | 13850 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
| 411e1bfb AM |
13851 | break; |
| 13852 | ||
| e515b051 AM |
13853 | case R_PPC64_DTPMOD64: |
| 13854 | relocation = 1; | |
| 13855 | addend = 0; | |
| 13856 | goto dodyn; | |
| 13857 | ||
| 411e1bfb | 13858 | case R_PPC64_TPREL64: |
| e1918d23 | 13859 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
| 411e1bfb AM |
13860 | goto dodyn; |
| 13861 | ||
| 13862 | case R_PPC64_DTPREL64: | |
| e1918d23 | 13863 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
| 411e1bfb AM |
13864 | /* Fall thru */ |
| 13865 | ||
| 65f38f15 AM |
13866 | /* Relocations that may need to be propagated if this is a |
| 13867 | dynamic object. */ | |
| 04c9666a | 13868 | case R_PPC64_REL30: |
| 65f38f15 AM |
13869 | case R_PPC64_REL32: |
| 13870 | case R_PPC64_REL64: | |
| 13871 | case R_PPC64_ADDR14: | |
| 13872 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 13873 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13874 | case R_PPC64_ADDR16: | |
| 13875 | case R_PPC64_ADDR16_DS: | |
| 13876 | case R_PPC64_ADDR16_HA: | |
| 13877 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
13878 | case R_PPC64_ADDR16_HIGH: |
| 13879 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
13880 | case R_PPC64_ADDR16_HIGHER: |
| 13881 | case R_PPC64_ADDR16_HIGHERA: | |
| 13882 | case R_PPC64_ADDR16_HIGHEST: | |
| 13883 | case R_PPC64_ADDR16_HIGHESTA: | |
| 13884 | case R_PPC64_ADDR16_LO: | |
| 13885 | case R_PPC64_ADDR16_LO_DS: | |
| 13886 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
13887 | case R_PPC64_ADDR32: |
| 13888 | case R_PPC64_ADDR64: | |
| 13889 | case R_PPC64_UADDR16: | |
| 13890 | case R_PPC64_UADDR32: | |
| 13891 | case R_PPC64_UADDR64: | |
| 411e1bfb | 13892 | dodyn: |
| 5d1634d7 | 13893 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
13894 | break; |
| 13895 | ||
| 41bd81ab AM |
13896 | if (NO_OPD_RELOCS && is_opd) |
| 13897 | break; | |
| 13898 | ||
| 65f38f15 | 13899 | if ((info->shared |
| 4e795f50 | 13900 | && (h == NULL |
| 039b3fef AM |
13901 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 13902 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 13903 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 13904 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 AM |
13905 | || (ELIMINATE_COPY_RELOCS |
| 13906 | && !info->shared | |
| 65f38f15 | 13907 | && h != NULL |
| 039b3fef | 13908 | && h->elf.dynindx != -1 |
| f5385ebf | 13909 | && !h->elf.non_got_ref |
| 25f23106 AM |
13910 | && !h->elf.def_regular) |
| 13911 | || (!info->shared | |
| 13912 | && (h != NULL | |
| 13913 | ? h->elf.type == STT_GNU_IFUNC | |
| 13914 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 13915 | { |
| b34976b6 | 13916 | bfd_boolean skip, relocate; |
| 65f38f15 | 13917 | asection *sreloc; |
| 1cf1f670 | 13918 | bfd_vma out_off; |
| 65f38f15 AM |
13919 | |
| 13920 | /* When generating a dynamic object, these relocations | |
| 13921 | are copied into the output file to be resolved at run | |
| 13922 | time. */ | |
| 13923 | ||
| b34976b6 AM |
13924 | skip = FALSE; |
| 13925 | relocate = FALSE; | |
| 65f38f15 | 13926 | |
| 1cf1f670 AM |
13927 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 13928 | input_section, rel->r_offset); | |
| 13929 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 13930 | skip = TRUE; |
| 1cf1f670 | 13931 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 13932 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
13933 | out_off += (input_section->output_section->vma |
| 13934 | + input_section->output_offset); | |
| 13935 | outrel.r_offset = out_off; | |
| 411e1bfb | 13936 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 13937 | |
| 1cf1f670 AM |
13938 | /* Optimize unaligned reloc use. */ |
| 13939 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 13940 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 13941 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 13942 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 13943 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 13944 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 13945 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 13946 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 13947 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 13948 | ||
| 65f38f15 | 13949 | if (skip) |
| 0bb2d96a | 13950 | memset (&outrel, 0, sizeof outrel); |
| 726d3ab0 | 13951 | else if (!SYMBOL_CALLS_LOCAL (info, &h->elf) |
| 0b13192e AM |
13952 | && !is_opd |
| 13953 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
13954 | { |
| 13955 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 13956 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 13957 | } | |
| 65f38f15 AM |
13958 | else |
| 13959 | { | |
| 41bd81ab AM |
13960 | /* This symbol is local, or marked to become local, |
| 13961 | or this is an opd section reloc which must point | |
| 13962 | at a local function. */ | |
| 65f38f15 | 13963 | outrel.r_addend += relocation; |
| e86ce104 | 13964 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 13965 | { |
| 3fad3c7c | 13966 | if (is_opd && h != NULL) |
| afbe61cf AM |
13967 | { |
| 13968 | /* Lie about opd entries. This case occurs | |
| 13969 | when building shared libraries and we | |
| 13970 | reference a function in another shared | |
| 3fad3c7c AM |
13971 | lib. The same thing happens for a weak |
| 13972 | definition in an application that's | |
| 13973 | overridden by a strong definition in a | |
| 13974 | shared lib. (I believe this is a generic | |
| 13975 | bug in binutils handling of weak syms.) | |
| 13976 | In these cases we won't use the opd | |
| 1e2f5b6e | 13977 | entry in this lib. */ |
| b34976b6 | 13978 | unresolved_reloc = FALSE; |
| afbe61cf | 13979 | } |
| 25f23106 AM |
13980 | if (!is_opd |
| 13981 | && r_type == R_PPC64_ADDR64 | |
| 13982 | && (h != NULL | |
| 13983 | ? h->elf.type == STT_GNU_IFUNC | |
| 13984 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 13985 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 13986 | else | |
| 13987 | { | |
| 13988 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 13989 | |
| 25f23106 AM |
13990 | /* We need to relocate .opd contents for ld.so. |
| 13991 | Prelink also wants simple and consistent rules | |
| 13992 | for relocs. This make all RELATIVE relocs have | |
| 13993 | *r_offset equal to r_addend. */ | |
| 13994 | relocate = TRUE; | |
| 13995 | } | |
| 65f38f15 AM |
13996 | } |
| 13997 | else | |
| 13998 | { | |
| 13999 | long indx = 0; | |
| 14000 | ||
| 25f23106 AM |
14001 | if (h != NULL |
| 14002 | ? h->elf.type == STT_GNU_IFUNC | |
| 14003 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14004 | { | |
| 25f53a85 | 14005 | info->callbacks->einfo |
| bc30df16 AM |
14006 | (_("%P: %H: %s for indirect " |
| 14007 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14008 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14009 | ppc64_elf_howto_table[r_type]->name, |
| 14010 | sym_name); | |
| 14011 | ret = FALSE; | |
| 14012 | } | |
| cf35638d | 14013 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14014 | ; |
| 14015 | else if (sec == NULL || sec->owner == NULL) | |
| 14016 | { | |
| 14017 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14018 | return FALSE; |
| 65f38f15 AM |
14019 | } |
| 14020 | else | |
| 14021 | { | |
| 14022 | asection *osec; | |
| 14023 | ||
| 14024 | osec = sec->output_section; | |
| 14025 | indx = elf_section_data (osec)->dynindx; | |
| 14026 | ||
| 74541ad4 AM |
14027 | if (indx == 0) |
| 14028 | { | |
| 14029 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14030 | && htab->elf.data_index_section != NULL) | |
| 14031 | osec = htab->elf.data_index_section; | |
| 14032 | else | |
| 14033 | osec = htab->elf.text_index_section; | |
| 14034 | indx = elf_section_data (osec)->dynindx; | |
| 14035 | } | |
| 14036 | BFD_ASSERT (indx != 0); | |
| 14037 | ||
| 65f38f15 AM |
14038 | /* We are turning this relocation into one |
| 14039 | against a section symbol, so subtract out | |
| 14040 | the output section's address but not the | |
| 14041 | offset of the input section in the output | |
| 14042 | section. */ | |
| 14043 | outrel.r_addend -= osec->vma; | |
| 14044 | } | |
| 14045 | ||
| 14046 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14047 | } | |
| 14048 | } | |
| 14049 | ||
| 14050 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14051 | if (h != NULL |
| 14052 | ? h->elf.type == STT_GNU_IFUNC | |
| 14053 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 25f23106 | 14054 | sreloc = htab->reliplt; |
| 65f38f15 AM |
14055 | if (sreloc == NULL) |
| 14056 | abort (); | |
| 14057 | ||
| dfbb6ac9 AM |
14058 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14059 | >= sreloc->size) | |
| 14060 | abort (); | |
| 947216bf AM |
14061 | loc = sreloc->contents; |
| 14062 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14063 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14064 | ||
| 14065 | /* If this reloc is against an external symbol, it will | |
| 14066 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14067 | anything now. However, for the sake of prelink ensure |
| 14068 | that the section contents are a known value. */ | |
| 65f38f15 | 14069 | if (! relocate) |
| 81407a69 AM |
14070 | { |
| 14071 | unresolved_reloc = FALSE; | |
| 14072 | /* The value chosen here is quite arbitrary as ld.so | |
| 14073 | ignores section contents except for the special | |
| 14074 | case of .opd where the contents might be accessed | |
| 14075 | before relocation. Choose zero, as that won't | |
| 14076 | cause reloc overflow. */ | |
| 14077 | relocation = 0; | |
| 14078 | addend = 0; | |
| 14079 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14080 | to improve backward compatibility with older | |
| 14081 | versions of ld. */ | |
| 14082 | if (r_type == R_PPC64_ADDR64) | |
| 14083 | addend = outrel.r_addend; | |
| 14084 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14085 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14086 | addend = (input_section->output_section->vma |
| 14087 | + input_section->output_offset | |
| 14088 | + rel->r_offset); | |
| 81407a69 | 14089 | } |
| 65f38f15 | 14090 | } |
| 5bd4f169 AM |
14091 | break; |
| 14092 | ||
| 65f38f15 AM |
14093 | case R_PPC64_COPY: |
| 14094 | case R_PPC64_GLOB_DAT: | |
| 14095 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14096 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14097 | case R_PPC64_RELATIVE: |
| 14098 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14099 | files. */ | |
| ae9a127f | 14100 | /* Fall through. */ |
| 65f38f15 AM |
14101 | |
| 14102 | case R_PPC64_PLTGOT16: | |
| 14103 | case R_PPC64_PLTGOT16_DS: | |
| 14104 | case R_PPC64_PLTGOT16_HA: | |
| 14105 | case R_PPC64_PLTGOT16_HI: | |
| 14106 | case R_PPC64_PLTGOT16_LO: | |
| 14107 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14108 | case R_PPC64_PLTREL32: | |
| 14109 | case R_PPC64_PLTREL64: | |
| 14110 | /* These ones haven't been implemented yet. */ | |
| 14111 | ||
| 25f53a85 | 14112 | info->callbacks->einfo |
| bc30df16 | 14113 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14114 | input_bfd, |
| 4ce794b7 | 14115 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14116 | |
| 14117 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14118 | ret = FALSE; |
| 5bd4f169 | 14119 | continue; |
| 65f38f15 | 14120 | } |
| 5bd4f169 | 14121 | |
| 67f0cbdb AM |
14122 | /* Multi-instruction sequences that access the TOC can be |
| 14123 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14124 | to nop; addi rb,r2,x; */ | |
| 14125 | switch (r_type) | |
| 14126 | { | |
| 14127 | default: | |
| 14128 | break; | |
| 14129 | ||
| 14130 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14131 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14132 | case R_PPC64_GOT_TPREL16_HI: | |
| 14133 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14134 | case R_PPC64_GOT16_HI: | |
| 14135 | case R_PPC64_TOC16_HI: | |
| 14136 | /* These relocs would only be useful if building up an | |
| 14137 | offset to later add to r2, perhaps in an indexed | |
| 14138 | addressing mode instruction. Don't try to optimize. | |
| 14139 | Unfortunately, the possibility of someone building up an | |
| 14140 | offset like this or even with the HA relocs, means that | |
| 14141 | we need to check the high insn when optimizing the low | |
| 14142 | insn. */ | |
| 14143 | break; | |
| 14144 | ||
| 14145 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14146 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14147 | case R_PPC64_GOT_TPREL16_HA: | |
| 14148 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14149 | case R_PPC64_GOT16_HA: | |
| 14150 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14151 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14152 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14153 | { |
| 14154 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14155 | bfd_put_32 (input_bfd, NOP, p); | |
| 14156 | } | |
| 67f0cbdb AM |
14157 | break; |
| 14158 | ||
| 14159 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14160 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14161 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14162 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14163 | case R_PPC64_GOT16_LO: | |
| 14164 | case R_PPC64_GOT16_LO_DS: | |
| 14165 | case R_PPC64_TOC16_LO: | |
| 14166 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14167 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14168 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14169 | { |
| 14170 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14171 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14172 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14173 | { | |
| 14174 | /* Transform addic to addi when we change reg. */ | |
| 14175 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14176 | insn |= (14u << 26) | (2 << 16); | |
| 14177 | } | |
| 14178 | else | |
| 67f0cbdb | 14179 | { |
| 98528052 AM |
14180 | insn &= ~(0x1f << 16); |
| 14181 | insn |= 2 << 16; | |
| 67f0cbdb | 14182 | } |
| 560c8763 | 14183 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14184 | } |
| 14185 | break; | |
| 14186 | } | |
| 14187 | ||
| 65f38f15 AM |
14188 | /* Do any further special processing. */ |
| 14189 | switch (r_type) | |
| 14190 | { | |
| 14191 | default: | |
| 14192 | break; | |
| 14193 | ||
| 25f23106 | 14194 | case R_PPC64_REL16_HA: |
| f9c6b907 AM |
14195 | case R_PPC64_ADDR16_HA: |
| 14196 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14197 | case R_PPC64_ADDR16_HIGHERA: |
| 14198 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14199 | case R_PPC64_TOC16_HA: |
| 14200 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14201 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14202 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14203 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14204 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14205 | case R_PPC64_DTPREL16_HA: |
| 14206 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14207 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14208 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14209 | /* It's just possible that this symbol is a weak symbol |
| 14210 | that's not actually defined anywhere. In that case, | |
| 14211 | 'sec' would be NULL, and we should leave the symbol | |
| 14212 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14213 | if (sec == NULL) |
| 14214 | break; | |
| 14215 | /* Fall thru */ | |
| 14216 | ||
| 14217 | case R_PPC64_GOT16_HA: | |
| 14218 | case R_PPC64_PLTGOT16_HA: | |
| 14219 | case R_PPC64_PLT16_HA: | |
| 14220 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14221 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14222 | case R_PPC64_GOT_TPREL16_HA: | |
| 14223 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14224 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 14225 | Bits 0:15 are not used. */ | |
| 14226 | addend += 0x8000; | |
| 65f38f15 AM |
14227 | break; |
| 14228 | ||
| 14229 | case R_PPC64_ADDR16_DS: | |
| 14230 | case R_PPC64_ADDR16_LO_DS: | |
| 14231 | case R_PPC64_GOT16_DS: | |
| 14232 | case R_PPC64_GOT16_LO_DS: | |
| 14233 | case R_PPC64_PLT16_LO_DS: | |
| 14234 | case R_PPC64_SECTOFF_DS: | |
| 14235 | case R_PPC64_SECTOFF_LO_DS: | |
| 14236 | case R_PPC64_TOC16_DS: | |
| 14237 | case R_PPC64_TOC16_LO_DS: | |
| 14238 | case R_PPC64_PLTGOT16_DS: | |
| 14239 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
14240 | case R_PPC64_GOT_TPREL16_DS: |
| 14241 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14242 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14243 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14244 | case R_PPC64_TPREL16_DS: | |
| 14245 | case R_PPC64_TPREL16_LO_DS: | |
| 14246 | case R_PPC64_DTPREL16_DS: | |
| 14247 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
14248 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 14249 | mask = 3; | |
| 14250 | /* If this reloc is against an lq insn, then the value must be | |
| 14251 | a multiple of 16. This is somewhat of a hack, but the | |
| 14252 | "correct" way to do this by defining _DQ forms of all the | |
| 14253 | _DS relocs bloats all reloc switches in this file. It | |
| 14254 | doesn't seem to make much sense to use any of these relocs | |
| 14255 | in data, so testing the insn should be safe. */ | |
| 494dac0c | 14256 | if ((insn & (0x3f << 26)) == (56u << 26)) |
| adadcc0c AM |
14257 | mask = 15; |
| 14258 | if (((relocation + addend) & mask) != 0) | |
| 65f38f15 | 14259 | { |
| 25f53a85 | 14260 | info->callbacks->einfo |
| 8de848d8 | 14261 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 14262 | input_bfd, input_section, rel->r_offset, |
| 4ce794b7 | 14263 | ppc64_elf_howto_table[r_type]->name, |
| adadcc0c | 14264 | mask + 1); |
| 65f38f15 | 14265 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14266 | ret = FALSE; |
| 65f38f15 AM |
14267 | continue; |
| 14268 | } | |
| 14269 | break; | |
| 5bd4f169 AM |
14270 | } |
| 14271 | ||
| 239e1f3a AM |
14272 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 14273 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 14274 | not process them. */ | |
| 65f38f15 | 14275 | if (unresolved_reloc |
| 239e1f3a | 14276 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
14277 | && h->elf.def_dynamic) |
| 14278 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 14279 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 14280 | { |
| 25f53a85 | 14281 | info->callbacks->einfo |
| bc30df16 | 14282 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 14283 | input_bfd, input_section, rel->r_offset, |
| 7b609f53 | 14284 | ppc64_elf_howto_table[(int) r_type]->name, |
| 039b3fef | 14285 | h->elf.root.root.string); |
| b34976b6 | 14286 | ret = FALSE; |
| 9c07fe7c | 14287 | } |
| 5bd4f169 | 14288 | |
| 65f38f15 | 14289 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
| 5bd4f169 AM |
14290 | input_bfd, |
| 14291 | input_section, | |
| 14292 | contents, | |
| 411e1bfb | 14293 | rel->r_offset, |
| 5bd4f169 AM |
14294 | relocation, |
| 14295 | addend); | |
| 14296 | ||
| ef60b7ff | 14297 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 14298 | { |
| bc30df16 AM |
14299 | char *more_info = NULL; |
| 14300 | const char *reloc_name = ppc64_elf_howto_table[r_type]->name; | |
| 14301 | ||
| 14302 | if (reloc_dest != DEST_NORMAL) | |
| 14303 | { | |
| 14304 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 14305 | if (more_info != NULL) | |
| 14306 | { | |
| 14307 | strcpy (more_info, reloc_name); | |
| 14308 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 14309 | ? " (OPD)" : " (stub)")); | |
| 14310 | reloc_name = more_info; | |
| 14311 | } | |
| 14312 | } | |
| 14313 | ||
| cd27b276 | 14314 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 14315 | { |
| cd27b276 AM |
14316 | if (warned) |
| 14317 | continue; | |
| 14318 | if (h != NULL | |
| 039b3fef | 14319 | && h->elf.root.type == bfd_link_hash_undefweak |
| 4ce794b7 | 14320 | && ppc64_elf_howto_table[r_type]->pc_relative) |
| 5bd4f169 AM |
14321 | { |
| 14322 | /* Assume this is a call protected by other code that | |
| 14323 | detects the symbol is undefined. If this is the case, | |
| 14324 | we can safely ignore the overflow. If not, the | |
| 14325 | program is hosed anyway, and a little warning isn't | |
| 14326 | going to help. */ | |
| 14327 | ||
| 14328 | continue; | |
| 14329 | } | |
| 14330 | ||
| ef60b7ff | 14331 | if (!((*info->callbacks->reloc_overflow) |
| bc30df16 AM |
14332 | (info, &h->elf.root, sym_name, |
| 14333 | reloc_name, orig_rel.r_addend, | |
| 14334 | input_bfd, input_section, rel->r_offset))) | |
| b34976b6 | 14335 | return FALSE; |
| ef60b7ff AM |
14336 | } |
| 14337 | else | |
| 14338 | { | |
| 25f53a85 | 14339 | info->callbacks->einfo |
| bc30df16 | 14340 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 14341 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 14342 | reloc_name, sym_name, (int) r); |
| b34976b6 | 14343 | ret = FALSE; |
| ef60b7ff | 14344 | } |
| bc30df16 AM |
14345 | if (more_info != NULL) |
| 14346 | free (more_info); | |
| 5bd4f169 | 14347 | } |
| 5bd4f169 AM |
14348 | } |
| 14349 | ||
| 645ea6a9 AM |
14350 | /* If we're emitting relocations, then shortly after this function |
| 14351 | returns, reloc offsets and addends for this section will be | |
| 14352 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
14353 | file rather than the input. Save a copy of the relocs for |
| 14354 | opd_entry_value. */ | |
| 4cc603a5 | 14355 | if (is_opd && (info->emitrelocations || info->relocatable)) |
| 8860955f AM |
14356 | { |
| 14357 | bfd_size_type amt; | |
| 14358 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 14359 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
14360 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 14361 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
14362 | if (rel == NULL) |
| 14363 | return FALSE; | |
| 14364 | memcpy (rel, relocs, amt); | |
| 14365 | } | |
| 5bd4f169 AM |
14366 | return ret; |
| 14367 | } | |
| 14368 | ||
| 754021d0 AM |
14369 | /* Adjust the value of any local symbols in opd sections. */ |
| 14370 | ||
| 6e0b88f1 | 14371 | static int |
| 754021d0 AM |
14372 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 14373 | const char *name ATTRIBUTE_UNUSED, | |
| 14374 | Elf_Internal_Sym *elfsym, | |
| 14375 | asection *input_sec, | |
| 14376 | struct elf_link_hash_entry *h) | |
| 14377 | { | |
| 74f0fb50 AM |
14378 | struct _opd_sec_data *opd; |
| 14379 | long adjust; | |
| 754021d0 AM |
14380 | bfd_vma value; |
| 14381 | ||
| 4025353c | 14382 | if (h != NULL) |
| 6e0b88f1 | 14383 | return 1; |
| 4025353c | 14384 | |
| 74f0fb50 AM |
14385 | opd = get_opd_info (input_sec); |
| 14386 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 14387 | return 1; |
| 754021d0 AM |
14388 | |
| 14389 | value = elfsym->st_value - input_sec->output_offset; | |
| 14390 | if (!info->relocatable) | |
| 14391 | value -= input_sec->output_section->vma; | |
| 14392 | ||
| 74f0fb50 | 14393 | adjust = opd->adjust[value / 8]; |
| 4025353c | 14394 | if (adjust == -1) |
| 6e0b88f1 AM |
14395 | return 2; |
| 14396 | ||
| 14397 | elfsym->st_value += adjust; | |
| 14398 | return 1; | |
| 754021d0 AM |
14399 | } |
| 14400 | ||
| 5bd4f169 AM |
14401 | /* Finish up dynamic symbol handling. We set the contents of various |
| 14402 | dynamic sections here. */ | |
| 14403 | ||
| b34976b6 | 14404 | static bfd_boolean |
| 4ce794b7 AM |
14405 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 14406 | struct bfd_link_info *info, | |
| 14407 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 14408 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 14409 | { |
| 65f38f15 | 14410 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
14411 | struct plt_entry *ent; |
| 14412 | Elf_Internal_Rela rela; | |
| 14413 | bfd_byte *loc; | |
| 5bd4f169 | 14414 | |
| 65f38f15 | 14415 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
14416 | if (htab == NULL) |
| 14417 | return FALSE; | |
| 5bd4f169 | 14418 | |
| 8387904d AM |
14419 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 14420 | if (ent->plt.offset != (bfd_vma) -1) | |
| 14421 | { | |
| 14422 | /* This symbol has an entry in the procedure linkage | |
| 14423 | table. Set it up. */ | |
| e054468f AM |
14424 | if (!htab->elf.dynamic_sections_created |
| 14425 | || h->dynindx == -1) | |
| 14426 | { | |
| 14427 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 14428 | && h->def_regular | |
| 14429 | && (h->root.type == bfd_link_hash_defined | |
| 14430 | || h->root.type == bfd_link_hash_defweak)); | |
| 25f23106 AM |
14431 | rela.r_offset = (htab->iplt->output_section->vma |
| 14432 | + htab->iplt->output_offset | |
| 14433 | + ent->plt.offset); | |
| ee67d69a AM |
14434 | if (htab->opd_abi) |
| 14435 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 14436 | else | |
| 14437 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
14438 | rela.r_addend = (h->root.u.def.value |
| 14439 | + h->root.u.def.section->output_offset | |
| 14440 | + h->root.u.def.section->output_section->vma | |
| 14441 | + ent->addend); | |
| 25f23106 AM |
14442 | loc = (htab->reliplt->contents |
| 14443 | + (htab->reliplt->reloc_count++ | |
| 14444 | * sizeof (Elf64_External_Rela))); | |
| e054468f AM |
14445 | } |
| 14446 | else | |
| 14447 | { | |
| 25f23106 AM |
14448 | rela.r_offset = (htab->plt->output_section->vma |
| 14449 | + htab->plt->output_offset | |
| 14450 | + ent->plt.offset); | |
| e054468f AM |
14451 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 14452 | rela.r_addend = ent->addend; | |
| 25f23106 AM |
14453 | loc = (htab->relplt->contents |
| 14454 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) | |
| 14455 | / (PLT_ENTRY_SIZE / sizeof (Elf64_External_Rela)))); | |
| e054468f | 14456 | } |
| 8387904d AM |
14457 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 14458 | } | |
| 5bd4f169 | 14459 | |
| f5385ebf | 14460 | if (h->needs_copy) |
| 5bd4f169 | 14461 | { |
| 65f38f15 | 14462 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 14463 | |
| 65f38f15 AM |
14464 | if (h->dynindx == -1 |
| 14465 | || (h->root.type != bfd_link_hash_defined | |
| 14466 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 14467 | || htab->relbss == NULL) |
| 65f38f15 | 14468 | abort (); |
| 5bd4f169 AM |
14469 | |
| 14470 | rela.r_offset = (h->root.u.def.value | |
| 14471 | + h->root.u.def.section->output_section->vma | |
| 14472 | + h->root.u.def.section->output_offset); | |
| 14473 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 14474 | rela.r_addend = 0; | |
| 4ce794b7 AM |
14475 | loc = htab->relbss->contents; |
| 14476 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 14477 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
14478 | } |
| 14479 | ||
| b34976b6 | 14480 | return TRUE; |
| 5bd4f169 AM |
14481 | } |
| 14482 | ||
| 65f38f15 AM |
14483 | /* Used to decide how to sort relocs in an optimal manner for the |
| 14484 | dynamic linker, before writing them out. */ | |
| 14485 | ||
| 14486 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
14487 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 14488 | const asection *rel_sec, | |
| 14489 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 14490 | { |
| 04c9666a | 14491 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
14492 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 14493 | ||
| 14494 | if (rel_sec == htab->reliplt) | |
| 14495 | return reloc_class_ifunc; | |
| a33d1f77 | 14496 | |
| 4ce794b7 | 14497 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 14498 | switch (r_type) |
| 65f38f15 AM |
14499 | { |
| 14500 | case R_PPC64_RELATIVE: | |
| 14501 | return reloc_class_relative; | |
| 14502 | case R_PPC64_JMP_SLOT: | |
| 14503 | return reloc_class_plt; | |
| 14504 | case R_PPC64_COPY: | |
| 14505 | return reloc_class_copy; | |
| 14506 | default: | |
| 14507 | return reloc_class_normal; | |
| 14508 | } | |
| 14509 | } | |
| 14510 | ||
| 5bd4f169 AM |
14511 | /* Finish up the dynamic sections. */ |
| 14512 | ||
| b34976b6 | 14513 | static bfd_boolean |
| 4ce794b7 AM |
14514 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 14515 | struct bfd_link_info *info) | |
| 5bd4f169 | 14516 | { |
| 65f38f15 AM |
14517 | struct ppc_link_hash_table *htab; |
| 14518 | bfd *dynobj; | |
| 5bd4f169 | 14519 | asection *sdyn; |
| 5bd4f169 | 14520 | |
| 65f38f15 | 14521 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
14522 | if (htab == NULL) |
| 14523 | return FALSE; | |
| 14524 | ||
| 65f38f15 | 14525 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 14526 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 14527 | |
| 65f38f15 | 14528 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 14529 | { |
| 5bd4f169 AM |
14530 | Elf64_External_Dyn *dyncon, *dynconend; |
| 14531 | ||
| 4ce794b7 | 14532 | if (sdyn == NULL || htab->got == NULL) |
| 65f38f15 | 14533 | abort (); |
| 5bd4f169 AM |
14534 | |
| 14535 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 14536 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
14537 | for (; dyncon < dynconend; dyncon++) |
| 14538 | { | |
| 14539 | Elf_Internal_Dyn dyn; | |
| 19397422 | 14540 | asection *s; |
| 5bd4f169 AM |
14541 | |
| 14542 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 14543 | ||
| 14544 | switch (dyn.d_tag) | |
| 14545 | { | |
| 65f38f15 AM |
14546 | default: |
| 14547 | continue; | |
| 5bd4f169 | 14548 | |
| 5d1634d7 | 14549 | case DT_PPC64_GLINK: |
| 4ce794b7 | 14550 | s = htab->glink; |
| 6348e046 | 14551 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
14552 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 14553 | of glink rather than the first entry point, which is | |
| 14554 | what ld.so needs, and now have a bigger stub to | |
| 14555 | support automatic multiple TOCs. */ | |
| 14556 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
| 5d1634d7 AM |
14557 | break; |
| 14558 | ||
| 19397422 AM |
14559 | case DT_PPC64_OPD: |
| 14560 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
14561 | if (s == NULL) |
| 14562 | continue; | |
| 14563 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
14564 | break; |
| 14565 | ||
| 14566 | case DT_PPC64_OPDSZ: | |
| 14567 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
14568 | if (s == NULL) |
| 14569 | continue; | |
| eea6121a | 14570 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
14571 | break; |
| 14572 | ||
| 65f38f15 | 14573 | case DT_PLTGOT: |
| 4ce794b7 | 14574 | s = htab->plt; |
| 6348e046 | 14575 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
14576 | break; |
| 14577 | ||
| 14578 | case DT_JMPREL: | |
| 4ce794b7 | 14579 | s = htab->relplt; |
| 6348e046 | 14580 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 14581 | break; |
| 5bd4f169 | 14582 | |
| 65f38f15 | 14583 | case DT_PLTRELSZ: |
| eea6121a | 14584 | dyn.d_un.d_val = htab->relplt->size; |
| 5d1634d7 AM |
14585 | break; |
| 14586 | ||
| 14587 | case DT_RELASZ: | |
| 14588 | /* Don't count procedure linkage table relocs in the | |
| 14589 | overall reloc count. */ | |
| 4ce794b7 | 14590 | s = htab->relplt; |
| 6348e046 AM |
14591 | if (s == NULL) |
| 14592 | continue; | |
| eea6121a | 14593 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
14594 | break; |
| 14595 | ||
| 14596 | case DT_RELA: | |
| 14597 | /* We may not be using the standard ELF linker script. | |
| 14598 | If .rela.plt is the first .rela section, we adjust | |
| 14599 | DT_RELA to not include it. */ | |
| 4ce794b7 | 14600 | s = htab->relplt; |
| 6348e046 AM |
14601 | if (s == NULL) |
| 14602 | continue; | |
| 14603 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 14604 | continue; | |
| eea6121a | 14605 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 14606 | break; |
| 5bd4f169 | 14607 | } |
| 5bd4f169 | 14608 | |
| 65f38f15 | 14609 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 14610 | } |
| 5bd4f169 AM |
14611 | } |
| 14612 | ||
| eea6121a | 14613 | if (htab->got != NULL && htab->got->size != 0) |
| 5d1634d7 AM |
14614 | { |
| 14615 | /* Fill in the first entry in the global offset table. | |
| 14616 | We use it to hold the link-time TOCbase. */ | |
| 14617 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 14618 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 4ce794b7 | 14619 | htab->got->contents); |
| 5d1634d7 AM |
14620 | |
| 14621 | /* Set .got entry size. */ | |
| 4ce794b7 | 14622 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
14623 | } |
| 14624 | ||
| eea6121a | 14625 | if (htab->plt != NULL && htab->plt->size != 0) |
| 5d1634d7 AM |
14626 | { |
| 14627 | /* Set .plt entry size. */ | |
| 4ce794b7 | 14628 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
| 5d1634d7 AM |
14629 | = PLT_ENTRY_SIZE; |
| 14630 | } | |
| 14631 | ||
| 84f5d08e AM |
14632 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 14633 | brlt ourselves if emitrelocations. */ | |
| 14634 | if (htab->brlt != NULL | |
| 14635 | && htab->brlt->reloc_count != 0 | |
| 14636 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 14637 | htab->brlt, | |
| d4730f92 | 14638 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
14639 | elf_section_data (htab->brlt)->relocs, |
| 14640 | NULL)) | |
| 14641 | return FALSE; | |
| 14642 | ||
| 176a0d42 AM |
14643 | if (htab->glink != NULL |
| 14644 | && htab->glink->reloc_count != 0 | |
| 14645 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 14646 | htab->glink, | |
| d4730f92 | 14647 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
14648 | elf_section_data (htab->glink)->relocs, |
| 14649 | NULL)) | |
| 14650 | return FALSE; | |
| 14651 | ||
| 58d180e8 AM |
14652 | |
| 14653 | if (htab->glink_eh_frame != NULL | |
| dbaa2011 | 14654 | && htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME |
| 58d180e8 AM |
14655 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, |
| 14656 | htab->glink_eh_frame, | |
| 14657 | htab->glink_eh_frame->contents)) | |
| 14658 | return FALSE; | |
| 14659 | ||
| e717da7e | 14660 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
14661 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 14662 | bfd. */ | |
| e717da7e AM |
14663 | while ((dynobj = dynobj->link_next) != NULL) |
| 14664 | { | |
| 14665 | asection *s; | |
| 7b53ace3 | 14666 | |
| 0c8d6e5c | 14667 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
14668 | continue; |
| 14669 | ||
| e717da7e AM |
14670 | s = ppc64_elf_tdata (dynobj)->got; |
| 14671 | if (s != NULL | |
| eea6121a | 14672 | && s->size != 0 |
| e717da7e AM |
14673 | && s->output_section != bfd_abs_section_ptr |
| 14674 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 14675 | s->contents, s->output_offset, | |
| eea6121a | 14676 | s->size)) |
| e717da7e AM |
14677 | return FALSE; |
| 14678 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 14679 | if (s != NULL | |
| eea6121a | 14680 | && s->size != 0 |
| e717da7e AM |
14681 | && s->output_section != bfd_abs_section_ptr |
| 14682 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 14683 | s->contents, s->output_offset, | |
| eea6121a | 14684 | s->size)) |
| e717da7e AM |
14685 | return FALSE; |
| 14686 | } | |
| f6c52c13 | 14687 | |
| b34976b6 | 14688 | return TRUE; |
| 5bd4f169 AM |
14689 | } |
| 14690 | ||
| 5bd4f169 | 14691 | #include "elf64-target.h" |
| 7b8e7dad AM |
14692 | |
| 14693 | /* FreeBSD support */ | |
| 14694 | ||
| 14695 | #undef TARGET_LITTLE_SYM | |
| 14696 | #undef TARGET_LITTLE_NAME | |
| 14697 | ||
| 14698 | #undef TARGET_BIG_SYM | |
| 14699 | #define TARGET_BIG_SYM bfd_elf64_powerpc_freebsd_vec | |
| 14700 | #undef TARGET_BIG_NAME | |
| 14701 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 14702 | ||
| 14703 | #undef ELF_OSABI | |
| 14704 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 14705 | ||
| 14706 | #undef elf64_bed | |
| 14707 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 14708 | ||
| 14709 | #include "elf64-target.h" | |
| 14710 |