projects / binutils.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 <[email protected]>, |
| 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. */ | |
| b9e5796b | 128 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
129 | |
| 130 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 131 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 132 | |
| a078d95a AM |
133 | /* Offsets to some stack save slots. */ |
| 134 | #define STK_LR 16 | |
| 135 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| 136 | /* This one is dodgy. ABIv2 does not have a linker word, so use the | |
| 137 | CR save slot. Used only by optimised __tls_get_addr call stub, | |
| 138 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 139 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 140 | ||
| 5bd4f169 | 141 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb AM |
142 | #define TOC_BASE_OFF 0x8000 |
| 143 | ||
| 144 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 145 | #define TP_OFFSET 0x7000 | |
| 146 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 147 | |
| ad8e1ba5 AM |
148 | /* .plt call stub instructions. The normal stub is like this, but |
| 149 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 150 | insert an addi to adjust r11. */ |
| a078d95a | 151 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
152 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 153 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 154 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 155 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 156 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
157 | #define BCTR 0x4e800420 /* bctr */ |
| 158 | ||
| 71a39c98 | 159 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
160 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 161 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 162 | ||
| 71a39c98 AM |
163 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 164 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 165 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
166 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 167 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 168 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 169 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 170 | ||
| 71a39c98 | 171 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
172 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 173 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 174 | ||
| a078d95a | 175 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| ad8e1ba5 | 176 | |
| ee4bf8d2 | 177 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 178 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
179 | /* 0: */ |
| 180 | /* .quad plt0-1f */ | |
| 181 | /* __glink: */ | |
| 182 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 183 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 184 | /* 1: */ | |
| 185 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 186 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 187 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
188 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 189 | /* ld %12,0(%11) */ | |
| 190 | /* ld %2,8(%11) */ | |
| 191 | /* mtctr %12 */ | |
| 192 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 193 | /* bctr */ |
| b9e5796b AM |
194 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 195 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 196 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 197 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 198 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
199 | |
| 200 | /* Pad with this. */ | |
| 201 | #define NOP 0x60000000 | |
| 202 | ||
| 721956f4 AM |
203 | /* Some other nops. */ |
| 204 | #define CROR_151515 0x4def7b82 | |
| 205 | #define CROR_313131 0x4ffffb82 | |
| 206 | ||
| cedb70c5 | 207 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
208 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 209 | #define B_DOT 0x48000000 /* b . */ | |
| 210 | ||
| 211 | /* After that, we need two instructions to load the index, followed by | |
| 212 | a branch. */ | |
| 213 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 214 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 215 | |
| deb0e272 AM |
216 | /* Instructions used by the save and restore reg functions. */ |
| 217 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 218 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 219 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 220 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
221 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 222 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
223 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 224 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 225 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 226 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
227 | #define BLR 0x4e800020 /* blr */ |
| 228 | ||
| 41bd81ab AM |
229 | /* Since .opd is an array of descriptors and each entry will end up |
| 230 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 231 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 232 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
233 | #ifndef NO_OPD_RELOCS |
| 234 | #define NO_OPD_RELOCS 0 | |
| 235 | #endif | |
| 5bd4f169 | 236 | \f |
| f5e87a1d | 237 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 238 | |
| 5bd4f169 | 239 | /* Relocation HOWTO's. */ |
| 04c9666a | 240 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
241 | |
| 242 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 243 | /* This reloc does nothing. */ | |
| 244 | HOWTO (R_PPC64_NONE, /* type */ | |
| 245 | 0, /* rightshift */ | |
| 411e1bfb AM |
246 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 247 | 32, /* bitsize */ | |
| b34976b6 | 248 | FALSE, /* pc_relative */ |
| 5bd4f169 | 249 | 0, /* bitpos */ |
| f5e87a1d | 250 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
251 | bfd_elf_generic_reloc, /* special_function */ |
| 252 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 253 | FALSE, /* partial_inplace */ |
| d006db6c | 254 | 0, /* src_mask */ |
| 5bd4f169 | 255 | 0, /* dst_mask */ |
| b34976b6 | 256 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
257 | |
| 258 | /* A standard 32 bit relocation. */ | |
| 259 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 260 | 0, /* rightshift */ | |
| 261 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 262 | 32, /* bitsize */ | |
| b34976b6 | 263 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
264 | 0, /* bitpos */ |
| 265 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 266 | bfd_elf_generic_reloc, /* special_function */ | |
| 267 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 268 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
269 | 0, /* src_mask */ |
| 270 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 271 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
272 | |
| 273 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 274 | FIXME: we don't check that, we just clear them. */ | |
| 275 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 276 | 0, /* rightshift */ | |
| 277 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 278 | 26, /* bitsize */ | |
| b34976b6 | 279 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
280 | 0, /* bitpos */ |
| 281 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 282 | bfd_elf_generic_reloc, /* special_function */ | |
| 283 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 284 | FALSE, /* partial_inplace */ |
| d006db6c | 285 | 0, /* src_mask */ |
| f5e87a1d | 286 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 287 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
288 | |
| 289 | /* A standard 16 bit relocation. */ | |
| 290 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 291 | 0, /* rightshift */ | |
| 292 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 293 | 16, /* bitsize */ | |
| b34976b6 | 294 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
295 | 0, /* bitpos */ |
| 296 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 297 | bfd_elf_generic_reloc, /* special_function */ | |
| 298 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 299 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
300 | 0, /* src_mask */ |
| 301 | 0xffff, /* dst_mask */ | |
| b34976b6 | 302 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
303 | |
| 304 | /* A 16 bit relocation without overflow. */ | |
| 305 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 306 | 0, /* rightshift */ | |
| 307 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 308 | 16, /* bitsize */ | |
| b34976b6 | 309 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
310 | 0, /* bitpos */ |
| 311 | complain_overflow_dont,/* complain_on_overflow */ | |
| 312 | bfd_elf_generic_reloc, /* special_function */ | |
| 313 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 314 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
315 | 0, /* src_mask */ |
| 316 | 0xffff, /* dst_mask */ | |
| b34976b6 | 317 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
318 | |
| 319 | /* Bits 16-31 of an address. */ | |
| 320 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 321 | 16, /* rightshift */ | |
| 322 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 323 | 16, /* bitsize */ | |
| b34976b6 | 324 | FALSE, /* pc_relative */ |
| 5bd4f169 | 325 | 0, /* bitpos */ |
| f9c6b907 | 326 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
327 | bfd_elf_generic_reloc, /* special_function */ |
| 328 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 329 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
330 | 0, /* src_mask */ |
| 331 | 0xffff, /* dst_mask */ | |
| b34976b6 | 332 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
333 | |
| 334 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 335 | bits, treated as a signed number, is negative. */ | |
| 336 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 337 | 16, /* rightshift */ | |
| 338 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 339 | 16, /* bitsize */ | |
| b34976b6 | 340 | FALSE, /* pc_relative */ |
| 5bd4f169 | 341 | 0, /* bitpos */ |
| f9c6b907 | 342 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 343 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 344 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 345 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
346 | 0, /* src_mask */ |
| 347 | 0xffff, /* dst_mask */ | |
| b34976b6 | 348 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
349 | |
| 350 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 351 | FIXME: we don't check that, we just clear them. */ | |
| 352 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 353 | 0, /* rightshift */ | |
| 354 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 355 | 16, /* bitsize */ | |
| b34976b6 | 356 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
357 | 0, /* bitpos */ |
| 358 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 2441e016 | 359 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 360 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 361 | FALSE, /* partial_inplace */ |
| d006db6c | 362 | 0, /* src_mask */ |
| f5e87a1d | 363 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 364 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
365 | |
| 366 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 367 | indicate that the branch is expected to be taken. The lower two | |
| 368 | bits must be zero. */ | |
| 369 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 370 | 0, /* rightshift */ | |
| 371 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 372 | 16, /* bitsize */ | |
| b34976b6 | 373 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
374 | 0, /* bitpos */ |
| 375 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 376 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 377 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 378 | FALSE, /* partial_inplace */ |
| d006db6c | 379 | 0, /* src_mask */ |
| f5e87a1d | 380 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 381 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
382 | |
| 383 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 384 | indicate that the branch is not expected to be taken. The lower | |
| 385 | two bits must be zero. */ | |
| 386 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 387 | 0, /* rightshift */ | |
| 388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 389 | 16, /* bitsize */ | |
| b34976b6 | 390 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
391 | 0, /* bitpos */ |
| 392 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 393 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 394 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 395 | FALSE, /* partial_inplace */ |
| d006db6c | 396 | 0, /* src_mask */ |
| f5e87a1d | 397 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 398 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
399 | |
| 400 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 401 | HOWTO (R_PPC64_REL24, /* type */ | |
| 402 | 0, /* rightshift */ | |
| 403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 404 | 26, /* bitsize */ | |
| b34976b6 | 405 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
406 | 0, /* bitpos */ |
| 407 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 408 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 409 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 410 | FALSE, /* partial_inplace */ |
| d006db6c | 411 | 0, /* src_mask */ |
| f5e87a1d | 412 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 413 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
414 | |
| 415 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 416 | HOWTO (R_PPC64_REL14, /* type */ | |
| 417 | 0, /* rightshift */ | |
| 418 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 419 | 16, /* bitsize */ | |
| b34976b6 | 420 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
421 | 0, /* bitpos */ |
| 422 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 423 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 424 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 425 | FALSE, /* partial_inplace */ |
| d006db6c | 426 | 0, /* src_mask */ |
| f5e87a1d | 427 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 428 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
429 | |
| 430 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 431 | the branch is expected to be taken. The lower two bits must be | |
| 432 | zero. */ | |
| 433 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 434 | 0, /* rightshift */ | |
| 435 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 436 | 16, /* bitsize */ | |
| b34976b6 | 437 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
438 | 0, /* bitpos */ |
| 439 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 440 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 441 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 442 | FALSE, /* partial_inplace */ |
| d006db6c | 443 | 0, /* src_mask */ |
| f5e87a1d | 444 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 445 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
446 | |
| 447 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 448 | the branch is not expected to be taken. The lower two bits must | |
| 449 | be zero. */ | |
| 450 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 451 | 0, /* rightshift */ | |
| 452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 453 | 16, /* bitsize */ | |
| b34976b6 | 454 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
455 | 0, /* bitpos */ |
| 456 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 457 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 458 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 459 | FALSE, /* partial_inplace */ |
| d006db6c | 460 | 0, /* src_mask */ |
| f5e87a1d | 461 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 462 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
463 | |
| 464 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 465 | symbol. */ | |
| 466 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 467 | 0, /* rightshift */ | |
| 468 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 469 | 16, /* bitsize */ | |
| b34976b6 | 470 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
471 | 0, /* bitpos */ |
| 472 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 473 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 474 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 475 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
476 | 0, /* src_mask */ |
| 477 | 0xffff, /* dst_mask */ | |
| b34976b6 | 478 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
479 | |
| 480 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 481 | the symbol. */ | |
| 482 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 483 | 0, /* rightshift */ | |
| 484 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 485 | 16, /* bitsize */ | |
| b34976b6 | 486 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
487 | 0, /* bitpos */ |
| 488 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 489 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 490 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 491 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
492 | 0, /* src_mask */ |
| 493 | 0xffff, /* dst_mask */ | |
| b34976b6 | 494 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
495 | |
| 496 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 497 | the symbol. */ | |
| 498 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 499 | 16, /* rightshift */ | |
| 500 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 501 | 16, /* bitsize */ | |
| b34976b6 | 502 | FALSE, /* pc_relative */ |
| 5bd4f169 | 503 | 0, /* bitpos */ |
| f9c6b907 | 504 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 505 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 506 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 507 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
508 | 0, /* src_mask */ |
| 509 | 0xffff, /* dst_mask */ | |
| b34976b6 | 510 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
511 | |
| 512 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 513 | the symbol. */ | |
| 514 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 515 | 16, /* rightshift */ | |
| 516 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 517 | 16, /* bitsize */ | |
| b34976b6 | 518 | FALSE, /* pc_relative */ |
| 5bd4f169 | 519 | 0, /* bitpos */ |
| f9c6b907 | 520 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 521 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 522 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 523 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
524 | 0, /* src_mask */ |
| 525 | 0xffff, /* dst_mask */ | |
| b34976b6 | 526 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
527 | |
| 528 | /* This is used only by the dynamic linker. The symbol should exist | |
| 529 | both in the object being run and in some shared library. The | |
| 530 | dynamic linker copies the data addressed by the symbol from the | |
| 531 | shared library into the object, because the object being | |
| 532 | run has to have the data at some particular address. */ | |
| 533 | HOWTO (R_PPC64_COPY, /* type */ | |
| 534 | 0, /* rightshift */ | |
| f5e87a1d AM |
535 | 0, /* this one is variable size */ |
| 536 | 0, /* bitsize */ | |
| b34976b6 | 537 | FALSE, /* pc_relative */ |
| 5bd4f169 | 538 | 0, /* bitpos */ |
| f5e87a1d AM |
539 | complain_overflow_dont, /* complain_on_overflow */ |
| 540 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 541 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 542 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
543 | 0, /* src_mask */ |
| 544 | 0, /* dst_mask */ | |
| b34976b6 | 545 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
546 | |
| 547 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 548 | entries. */ | |
| 549 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 550 | 0, /* rightshift */ | |
| 551 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 552 | 64, /* bitsize */ | |
| b34976b6 | 553 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
554 | 0, /* bitpos */ |
| 555 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 556 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 557 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 558 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 559 | 0, /* src_mask */ |
| f5e87a1d | 560 | ONES (64), /* dst_mask */ |
| b34976b6 | 561 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
562 | |
| 563 | /* Created by the link editor. Marks a procedure linkage table | |
| 564 | entry for a symbol. */ | |
| 565 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 566 | 0, /* rightshift */ | |
| 567 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 568 | 0, /* bitsize */ | |
| b34976b6 | 569 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
570 | 0, /* bitpos */ |
| 571 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 572 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 573 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 574 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
575 | 0, /* src_mask */ |
| 576 | 0, /* dst_mask */ | |
| b34976b6 | 577 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
578 | |
| 579 | /* Used only by the dynamic linker. When the object is run, this | |
| 580 | doubleword64 is set to the load address of the object, plus the | |
| 581 | addend. */ | |
| 582 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 583 | 0, /* rightshift */ | |
| 584 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 585 | 64, /* bitsize */ | |
| b34976b6 | 586 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
587 | 0, /* bitpos */ |
| 588 | complain_overflow_dont, /* complain_on_overflow */ | |
| 589 | bfd_elf_generic_reloc, /* special_function */ | |
| 590 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 591 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 592 | 0, /* src_mask */ |
| f5e87a1d | 593 | ONES (64), /* dst_mask */ |
| b34976b6 | 594 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
595 | |
| 596 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 597 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 598 | 0, /* rightshift */ | |
| 599 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 600 | 32, /* bitsize */ | |
| b34976b6 | 601 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
602 | 0, /* bitpos */ |
| 603 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 604 | bfd_elf_generic_reloc, /* special_function */ | |
| 605 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 606 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
607 | 0, /* src_mask */ |
| 608 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 609 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
610 | |
| 611 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 612 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 613 | 0, /* rightshift */ | |
| 614 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 615 | 16, /* bitsize */ | |
| b34976b6 | 616 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
617 | 0, /* bitpos */ |
| 618 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 619 | bfd_elf_generic_reloc, /* special_function */ | |
| 620 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 621 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
622 | 0, /* src_mask */ |
| 623 | 0xffff, /* dst_mask */ | |
| b34976b6 | 624 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
625 | |
| 626 | /* 32-bit PC relative. */ | |
| 627 | HOWTO (R_PPC64_REL32, /* type */ | |
| 628 | 0, /* rightshift */ | |
| 629 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 630 | 32, /* bitsize */ | |
| b34976b6 | 631 | TRUE, /* pc_relative */ |
| 5bd4f169 | 632 | 0, /* bitpos */ |
| cedb70c5 | 633 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
| 5bd4f169 AM |
634 | complain_overflow_signed, /* complain_on_overflow */ |
| 635 | bfd_elf_generic_reloc, /* special_function */ | |
| 636 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 637 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
638 | 0, /* src_mask */ |
| 639 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 640 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 641 | |
| 10ed1bba | 642 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
643 | HOWTO (R_PPC64_PLT32, /* type */ |
| 644 | 0, /* rightshift */ | |
| 645 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 646 | 32, /* bitsize */ | |
| b34976b6 | 647 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
648 | 0, /* bitpos */ |
| 649 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 650 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 651 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 652 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 653 | 0, /* src_mask */ |
| f5e87a1d | 654 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 655 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
656 | |
| 657 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 658 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 659 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 660 | 0, /* rightshift */ | |
| 661 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 662 | 32, /* bitsize */ | |
| b34976b6 | 663 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
664 | 0, /* bitpos */ |
| 665 | complain_overflow_signed, /* complain_on_overflow */ | |
| 666 | bfd_elf_generic_reloc, /* special_function */ | |
| 667 | "R_PPC64_PLTREL32", /* name */ | |
| b34976b6 | 668 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 669 | 0, /* src_mask */ |
| f5e87a1d | 670 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 671 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
672 | |
| 673 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 674 | the symbol. */ | |
| 675 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 676 | 0, /* rightshift */ | |
| 677 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 678 | 16, /* bitsize */ | |
| b34976b6 | 679 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
680 | 0, /* bitpos */ |
| 681 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 682 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 683 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 684 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
685 | 0, /* src_mask */ |
| 686 | 0xffff, /* dst_mask */ | |
| b34976b6 | 687 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
688 | |
| 689 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 690 | the symbol. */ | |
| 691 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 692 | 16, /* rightshift */ | |
| 693 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 694 | 16, /* bitsize */ | |
| b34976b6 | 695 | FALSE, /* pc_relative */ |
| 5bd4f169 | 696 | 0, /* bitpos */ |
| f9c6b907 | 697 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 698 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 699 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 700 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
701 | 0, /* src_mask */ |
| 702 | 0xffff, /* dst_mask */ | |
| b34976b6 | 703 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
704 | |
| 705 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 706 | the symbol. */ | |
| 707 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 708 | 16, /* rightshift */ | |
| 709 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 710 | 16, /* bitsize */ | |
| b34976b6 | 711 | FALSE, /* pc_relative */ |
| 5bd4f169 | 712 | 0, /* bitpos */ |
| f9c6b907 | 713 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 714 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 715 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 716 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
717 | 0, /* src_mask */ |
| 718 | 0xffff, /* dst_mask */ | |
| b34976b6 | 719 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 720 | |
| c061c2d8 | 721 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
722 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 723 | 0, /* rightshift */ | |
| c061c2d8 AM |
724 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 725 | 16, /* bitsize */ | |
| b34976b6 | 726 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
727 | 0, /* bitpos */ |
| 728 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 729 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 730 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 731 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 732 | 0, /* src_mask */ |
| c061c2d8 | 733 | 0xffff, /* dst_mask */ |
| b34976b6 | 734 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 735 | |
| c061c2d8 | 736 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
737 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 738 | 0, /* rightshift */ | |
| 739 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 740 | 16, /* bitsize */ | |
| b34976b6 | 741 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
742 | 0, /* bitpos */ |
| 743 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 744 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 745 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 746 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
747 | 0, /* src_mask */ |
| 748 | 0xffff, /* dst_mask */ | |
| b34976b6 | 749 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
750 | |
| 751 | /* 16-bit upper half section relative relocation. */ | |
| 752 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 753 | 16, /* rightshift */ | |
| 754 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 755 | 16, /* bitsize */ | |
| b34976b6 | 756 | FALSE, /* pc_relative */ |
| 5bd4f169 | 757 | 0, /* bitpos */ |
| f9c6b907 | 758 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 759 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 760 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 761 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
762 | 0, /* src_mask */ |
| 763 | 0xffff, /* dst_mask */ | |
| b34976b6 | 764 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
765 | |
| 766 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 767 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 768 | 16, /* rightshift */ | |
| 769 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 770 | 16, /* bitsize */ | |
| b34976b6 | 771 | FALSE, /* pc_relative */ |
| 5bd4f169 | 772 | 0, /* bitpos */ |
| f9c6b907 | 773 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 774 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 775 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 776 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
777 | 0, /* src_mask */ |
| 778 | 0xffff, /* dst_mask */ | |
| b34976b6 | 779 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 780 | |
| 04c9666a AM |
781 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 782 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
783 | 2, /* rightshift */ |
| 784 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 785 | 30, /* bitsize */ | |
| b34976b6 | 786 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
787 | 0, /* bitpos */ |
| 788 | complain_overflow_dont, /* complain_on_overflow */ | |
| 789 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 790 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 791 | FALSE, /* partial_inplace */ |
| d006db6c | 792 | 0, /* src_mask */ |
| 5bd4f169 | 793 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 794 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
795 | |
| 796 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 797 | ||
| 798 | /* A standard 64-bit relocation. */ | |
| 799 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 800 | 0, /* rightshift */ | |
| 801 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 802 | 64, /* bitsize */ | |
| b34976b6 | 803 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
804 | 0, /* bitpos */ |
| 805 | complain_overflow_dont, /* complain_on_overflow */ | |
| 806 | bfd_elf_generic_reloc, /* special_function */ | |
| 807 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 808 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 809 | 0, /* src_mask */ |
| f5e87a1d | 810 | ONES (64), /* dst_mask */ |
| b34976b6 | 811 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
812 | |
| 813 | /* The bits 32-47 of an address. */ | |
| 814 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 815 | 32, /* rightshift */ | |
| 816 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 817 | 16, /* bitsize */ | |
| b34976b6 | 818 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
819 | 0, /* bitpos */ |
| 820 | complain_overflow_dont, /* complain_on_overflow */ | |
| 821 | bfd_elf_generic_reloc, /* special_function */ | |
| 822 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 823 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
824 | 0, /* src_mask */ |
| 825 | 0xffff, /* dst_mask */ | |
| b34976b6 | 826 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
827 | |
| 828 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 829 | 16 bits, treated as a signed number, is negative. */ | |
| 830 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 831 | 32, /* rightshift */ | |
| 832 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 833 | 16, /* bitsize */ | |
| b34976b6 | 834 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
835 | 0, /* bitpos */ |
| 836 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 837 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 838 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 839 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
840 | 0, /* src_mask */ |
| 841 | 0xffff, /* dst_mask */ | |
| b34976b6 | 842 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
843 | |
| 844 | /* The bits 48-63 of an address. */ | |
| 845 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 846 | 48, /* rightshift */ | |
| 847 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 848 | 16, /* bitsize */ | |
| b34976b6 | 849 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
850 | 0, /* bitpos */ |
| 851 | complain_overflow_dont, /* complain_on_overflow */ | |
| 852 | bfd_elf_generic_reloc, /* special_function */ | |
| 853 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 854 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
855 | 0, /* src_mask */ |
| 856 | 0xffff, /* dst_mask */ | |
| b34976b6 | 857 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
858 | |
| 859 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 860 | 16 bits, treated as a signed number, is negative. */ | |
| 861 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 862 | 48, /* rightshift */ | |
| 863 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 864 | 16, /* bitsize */ | |
| b34976b6 | 865 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
866 | 0, /* bitpos */ |
| 867 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 868 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 869 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 870 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
871 | 0, /* src_mask */ |
| 872 | 0xffff, /* dst_mask */ | |
| b34976b6 | 873 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
874 | |
| 875 | /* Like ADDR64, but may be unaligned. */ | |
| 876 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 877 | 0, /* rightshift */ | |
| 878 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 879 | 64, /* bitsize */ | |
| b34976b6 | 880 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
881 | 0, /* bitpos */ |
| 882 | complain_overflow_dont, /* complain_on_overflow */ | |
| 883 | bfd_elf_generic_reloc, /* special_function */ | |
| 884 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 885 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 886 | 0, /* src_mask */ |
| f5e87a1d | 887 | ONES (64), /* dst_mask */ |
| b34976b6 | 888 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
889 | |
| 890 | /* 64-bit relative relocation. */ | |
| 891 | HOWTO (R_PPC64_REL64, /* type */ | |
| 892 | 0, /* rightshift */ | |
| 893 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 894 | 64, /* bitsize */ | |
| b34976b6 | 895 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
896 | 0, /* bitpos */ |
| 897 | complain_overflow_dont, /* complain_on_overflow */ | |
| 898 | bfd_elf_generic_reloc, /* special_function */ | |
| 899 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 900 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 901 | 0, /* src_mask */ |
| f5e87a1d | 902 | ONES (64), /* dst_mask */ |
| b34976b6 | 903 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 904 | |
| cedb70c5 | 905 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
906 | HOWTO (R_PPC64_PLT64, /* type */ |
| 907 | 0, /* rightshift */ | |
| 908 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 909 | 64, /* bitsize */ | |
| b34976b6 | 910 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
911 | 0, /* bitpos */ |
| 912 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 913 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 914 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 915 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 916 | 0, /* src_mask */ |
| f5e87a1d | 917 | ONES (64), /* dst_mask */ |
| b34976b6 | 918 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
919 | |
| 920 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 921 | table. */ | |
| 922 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 923 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 924 | 0, /* rightshift */ | |
| 925 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 926 | 64, /* bitsize */ | |
| b34976b6 | 927 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
928 | 0, /* bitpos */ |
| 929 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 930 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 931 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 932 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 933 | 0, /* src_mask */ |
| f5e87a1d | 934 | ONES (64), /* dst_mask */ |
| b34976b6 | 935 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
936 | |
| 937 | /* 16 bit TOC-relative relocation. */ | |
| 938 | ||
| 939 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 940 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 941 | 0, /* rightshift */ | |
| 942 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 943 | 16, /* bitsize */ | |
| b34976b6 | 944 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
945 | 0, /* bitpos */ |
| 946 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 947 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 948 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 949 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
950 | 0, /* src_mask */ |
| 951 | 0xffff, /* dst_mask */ | |
| b34976b6 | 952 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
953 | |
| 954 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 955 | ||
| 956 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 957 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 958 | 0, /* rightshift */ | |
| 959 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 960 | 16, /* bitsize */ | |
| b34976b6 | 961 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
962 | 0, /* bitpos */ |
| 963 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 964 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 965 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 966 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
967 | 0, /* src_mask */ |
| 968 | 0xffff, /* dst_mask */ | |
| b34976b6 | 969 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
970 | |
| 971 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 972 | ||
| 973 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 974 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 975 | 16, /* rightshift */ | |
| 976 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 977 | 16, /* bitsize */ | |
| b34976b6 | 978 | FALSE, /* pc_relative */ |
| 5bd4f169 | 979 | 0, /* bitpos */ |
| f9c6b907 | 980 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 981 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 982 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 983 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
984 | 0, /* src_mask */ |
| 985 | 0xffff, /* dst_mask */ | |
| b34976b6 | 986 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
987 | |
| 988 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 989 | contents of the low 16 bits, treated as a signed number, is | |
| 990 | negative. */ | |
| 991 | ||
| 992 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 993 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 994 | 16, /* rightshift */ | |
| 995 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 996 | 16, /* bitsize */ | |
| b34976b6 | 997 | FALSE, /* pc_relative */ |
| 5bd4f169 | 998 | 0, /* bitpos */ |
| f9c6b907 | 999 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1000 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1001 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1002 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1003 | 0, /* src_mask */ |
| 1004 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1005 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1006 | |
| 1007 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1008 | ||
| 1009 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1010 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1011 | 0, /* rightshift */ | |
| 1012 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1013 | 64, /* bitsize */ | |
| b34976b6 | 1014 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1015 | 0, /* bitpos */ |
| 1016 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 1017 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1018 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1019 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1020 | 0, /* src_mask */ |
| f5e87a1d | 1021 | ONES (64), /* dst_mask */ |
| b34976b6 | 1022 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1023 | |
| 1024 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1025 | value to relocate may (!) refer to a PLT entry which the link | |
| 1026 | editor (a) may replace with the symbol value. If the link editor | |
| 1027 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1028 | entry and store the address to the new PLT entry in the GOT. | |
| 1029 | This permits lazy resolution of function symbols at run time. | |
| 1030 | The link editor may also skip all of this and just (c) emit a | |
| 1031 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1032 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1033 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1034 | 0, /* rightshift */ | |
| 1035 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1036 | 16, /* bitsize */ | |
| b34976b6 | 1037 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1038 | 0, /* bitpos */ |
| 1039 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1040 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1041 | "R_PPC64_PLTGOT16", /* name */ |
| 1042 | FALSE, /* partial_inplace */ | |
| 1043 | 0, /* src_mask */ | |
| 1044 | 0xffff, /* dst_mask */ | |
| 1045 | FALSE), /* pcrel_offset */ | |
| 1046 | ||
| 1047 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1048 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1049 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1050 | 0, /* rightshift */ | |
| 1051 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1052 | 16, /* bitsize */ | |
| 1053 | FALSE, /* pc_relative */ | |
| 1054 | 0, /* bitpos */ | |
| 1055 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1056 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1057 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1058 | FALSE, /* partial_inplace */ | |
| 1059 | 0, /* src_mask */ | |
| 1060 | 0xffff, /* dst_mask */ | |
| 1061 | FALSE), /* pcrel_offset */ | |
| 1062 | ||
| 1063 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1064 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1065 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1066 | 16, /* rightshift */ | |
| 1067 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1068 | 16, /* bitsize */ | |
| 1069 | FALSE, /* pc_relative */ | |
| 1070 | 0, /* bitpos */ | |
| f9c6b907 | 1071 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1072 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1073 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1074 | FALSE, /* partial_inplace */ | |
| 1075 | 0, /* src_mask */ | |
| 1076 | 0xffff, /* dst_mask */ | |
| 1077 | FALSE), /* pcrel_offset */ | |
| 1078 | ||
| 1079 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1080 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1081 | is negative. */ | |
| 1082 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1083 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1084 | 16, /* rightshift */ | |
| 1085 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1086 | 16, /* bitsize */ | |
| 1087 | FALSE, /* pc_relative */ | |
| 1088 | 0, /* bitpos */ | |
| f9c6b907 | 1089 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1090 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1091 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1092 | FALSE, /* partial_inplace */ | |
| 1093 | 0, /* src_mask */ | |
| 1094 | 0xffff, /* dst_mask */ | |
| 1095 | FALSE), /* pcrel_offset */ | |
| 1096 | ||
| 1097 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1098 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1099 | 0, /* rightshift */ | |
| 1100 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1101 | 16, /* bitsize */ | |
| 1102 | FALSE, /* pc_relative */ | |
| 1103 | 0, /* bitpos */ | |
| 1104 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1105 | bfd_elf_generic_reloc, /* special_function */ | |
| 1106 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1107 | FALSE, /* partial_inplace */ | |
| 1108 | 0, /* src_mask */ | |
| 1109 | 0xfffc, /* dst_mask */ | |
| 1110 | FALSE), /* pcrel_offset */ | |
| 1111 | ||
| 1112 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1113 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1114 | 0, /* rightshift */ | |
| 1115 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1116 | 16, /* bitsize */ | |
| 1117 | FALSE, /* pc_relative */ | |
| 1118 | 0, /* bitpos */ | |
| 1119 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1120 | bfd_elf_generic_reloc, /* special_function */ | |
| 1121 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1122 | FALSE, /* partial_inplace */ | |
| 1123 | 0, /* src_mask */ | |
| 1124 | 0xfffc, /* dst_mask */ | |
| 1125 | FALSE), /* pcrel_offset */ | |
| 1126 | ||
| 1127 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1128 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1129 | 0, /* rightshift */ | |
| 1130 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1131 | 16, /* bitsize */ | |
| 1132 | FALSE, /* pc_relative */ | |
| 1133 | 0, /* bitpos */ | |
| 1134 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1135 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1136 | "R_PPC64_GOT16_DS", /* name */ | |
| 1137 | FALSE, /* partial_inplace */ | |
| 1138 | 0, /* src_mask */ | |
| 1139 | 0xfffc, /* dst_mask */ | |
| 1140 | FALSE), /* pcrel_offset */ | |
| 1141 | ||
| 1142 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1143 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1144 | 0, /* rightshift */ | |
| 1145 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1146 | 16, /* bitsize */ | |
| 1147 | FALSE, /* pc_relative */ | |
| 1148 | 0, /* bitpos */ | |
| 1149 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1150 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1151 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1152 | FALSE, /* partial_inplace */ | |
| 1153 | 0, /* src_mask */ | |
| 1154 | 0xfffc, /* dst_mask */ | |
| 1155 | FALSE), /* pcrel_offset */ | |
| 1156 | ||
| 1157 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1158 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1159 | 0, /* rightshift */ | |
| 1160 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1161 | 16, /* bitsize */ | |
| 1162 | FALSE, /* pc_relative */ | |
| 1163 | 0, /* bitpos */ | |
| 1164 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1165 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1166 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1167 | FALSE, /* partial_inplace */ | |
| 1168 | 0, /* src_mask */ | |
| 1169 | 0xfffc, /* dst_mask */ | |
| 1170 | FALSE), /* pcrel_offset */ | |
| 1171 | ||
| 1172 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1173 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1174 | 0, /* rightshift */ | |
| 1175 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1176 | 16, /* bitsize */ | |
| 1177 | FALSE, /* pc_relative */ | |
| 1178 | 0, /* bitpos */ | |
| 1179 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1180 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1181 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1182 | FALSE, /* partial_inplace */ | |
| 1183 | 0, /* src_mask */ | |
| 1184 | 0xfffc, /* dst_mask */ | |
| 1185 | FALSE), /* pcrel_offset */ | |
| 1186 | ||
| 1187 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1188 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1189 | 0, /* rightshift */ | |
| 1190 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1191 | 16, /* bitsize */ | |
| 1192 | FALSE, /* pc_relative */ | |
| 1193 | 0, /* bitpos */ | |
| 1194 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1195 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1196 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1197 | FALSE, /* partial_inplace */ | |
| 1198 | 0, /* src_mask */ | |
| 1199 | 0xfffc, /* dst_mask */ | |
| 1200 | FALSE), /* pcrel_offset */ | |
| 1201 | ||
| 1202 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1203 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1204 | 0, /* rightshift */ | |
| 1205 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1206 | 16, /* bitsize */ | |
| 1207 | FALSE, /* pc_relative */ | |
| 1208 | 0, /* bitpos */ | |
| 1209 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1210 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1211 | "R_PPC64_TOC16_DS", /* name */ | |
| 1212 | FALSE, /* partial_inplace */ | |
| 1213 | 0, /* src_mask */ | |
| 1214 | 0xfffc, /* dst_mask */ | |
| 1215 | FALSE), /* pcrel_offset */ | |
| 1216 | ||
| 1217 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1218 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1219 | 0, /* rightshift */ | |
| 1220 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1221 | 16, /* bitsize */ | |
| 1222 | FALSE, /* pc_relative */ | |
| 1223 | 0, /* bitpos */ | |
| 1224 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1225 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1226 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1227 | FALSE, /* partial_inplace */ | |
| 1228 | 0, /* src_mask */ | |
| 1229 | 0xfffc, /* dst_mask */ | |
| 1230 | FALSE), /* pcrel_offset */ | |
| 1231 | ||
| 1232 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1233 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1234 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1235 | 0, /* rightshift */ |
| 1236 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1237 | 16, /* bitsize */ | |
| 1238 | FALSE, /* pc_relative */ | |
| 1239 | 0, /* bitpos */ | |
| 1240 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1241 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1242 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1243 | FALSE, /* partial_inplace */ | |
| 1244 | 0, /* src_mask */ | |
| 1245 | 0xfffc, /* dst_mask */ | |
| 1246 | FALSE), /* pcrel_offset */ | |
| 1247 | ||
| 1248 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1249 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1250 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1251 | 0, /* rightshift */ | |
| 1252 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1253 | 16, /* bitsize */ | |
| 1254 | FALSE, /* pc_relative */ | |
| 1255 | 0, /* bitpos */ | |
| 1256 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1257 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1258 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1259 | FALSE, /* partial_inplace */ | |
| 1260 | 0, /* src_mask */ | |
| 1261 | 0xfffc, /* dst_mask */ | |
| 1262 | FALSE), /* pcrel_offset */ | |
| 1263 | ||
| 727fc41e | 1264 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1265 | HOWTO (R_PPC64_TLS, |
| 1266 | 0, /* rightshift */ | |
| 1267 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1268 | 32, /* bitsize */ | |
| 1269 | FALSE, /* pc_relative */ | |
| 1270 | 0, /* bitpos */ | |
| 1271 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1272 | bfd_elf_generic_reloc, /* special_function */ | |
| 1273 | "R_PPC64_TLS", /* name */ | |
| 1274 | FALSE, /* partial_inplace */ | |
| 1275 | 0, /* src_mask */ | |
| 1276 | 0, /* dst_mask */ | |
| 1277 | FALSE), /* pcrel_offset */ | |
| 1278 | ||
| 727fc41e AM |
1279 | HOWTO (R_PPC64_TLSGD, |
| 1280 | 0, /* rightshift */ | |
| 1281 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1282 | 32, /* bitsize */ | |
| 1283 | FALSE, /* pc_relative */ | |
| 1284 | 0, /* bitpos */ | |
| 1285 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1286 | bfd_elf_generic_reloc, /* special_function */ | |
| 1287 | "R_PPC64_TLSGD", /* name */ | |
| 1288 | FALSE, /* partial_inplace */ | |
| 1289 | 0, /* src_mask */ | |
| 1290 | 0, /* dst_mask */ | |
| 1291 | FALSE), /* pcrel_offset */ | |
| 1292 | ||
| 1293 | HOWTO (R_PPC64_TLSLD, | |
| 1294 | 0, /* rightshift */ | |
| 1295 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1296 | 32, /* bitsize */ | |
| 1297 | FALSE, /* pc_relative */ | |
| 1298 | 0, /* bitpos */ | |
| 1299 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1300 | bfd_elf_generic_reloc, /* special_function */ | |
| 1301 | "R_PPC64_TLSLD", /* name */ | |
| 1302 | FALSE, /* partial_inplace */ | |
| 1303 | 0, /* src_mask */ | |
| 1304 | 0, /* dst_mask */ | |
| 1305 | FALSE), /* pcrel_offset */ | |
| 1306 | ||
| 3b421ab3 AM |
1307 | HOWTO (R_PPC64_TOCSAVE, |
| 1308 | 0, /* rightshift */ | |
| 1309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1310 | 32, /* bitsize */ | |
| 1311 | FALSE, /* pc_relative */ | |
| 1312 | 0, /* bitpos */ | |
| 1313 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1314 | bfd_elf_generic_reloc, /* special_function */ | |
| 1315 | "R_PPC64_TOCSAVE", /* name */ | |
| 1316 | FALSE, /* partial_inplace */ | |
| 1317 | 0, /* src_mask */ | |
| 1318 | 0, /* dst_mask */ | |
| 1319 | FALSE), /* pcrel_offset */ | |
| 1320 | ||
| 411e1bfb AM |
1321 | /* Computes the load module index of the load module that contains the |
| 1322 | definition of its TLS sym. */ | |
| 1323 | HOWTO (R_PPC64_DTPMOD64, | |
| 1324 | 0, /* rightshift */ | |
| 1325 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1326 | 64, /* bitsize */ | |
| 1327 | FALSE, /* pc_relative */ | |
| 1328 | 0, /* bitpos */ | |
| 1329 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1330 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1331 | "R_PPC64_DTPMOD64", /* name */ | |
| 1332 | FALSE, /* partial_inplace */ | |
| 1333 | 0, /* src_mask */ | |
| 1334 | ONES (64), /* dst_mask */ | |
| 1335 | FALSE), /* pcrel_offset */ | |
| 1336 | ||
| 1337 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1338 | of sym+add and the base address of the thread-local storage block that | |
| 1339 | contains the definition of sym, minus 0x8000. */ | |
| 1340 | HOWTO (R_PPC64_DTPREL64, | |
| 1341 | 0, /* rightshift */ | |
| 1342 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1343 | 64, /* bitsize */ | |
| 1344 | FALSE, /* pc_relative */ | |
| 1345 | 0, /* bitpos */ | |
| 1346 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1347 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1348 | "R_PPC64_DTPREL64", /* name */ | |
| 1349 | FALSE, /* partial_inplace */ | |
| 1350 | 0, /* src_mask */ | |
| 1351 | ONES (64), /* dst_mask */ | |
| 1352 | FALSE), /* pcrel_offset */ | |
| 1353 | ||
| 1354 | /* A 16 bit dtprel reloc. */ | |
| 1355 | HOWTO (R_PPC64_DTPREL16, | |
| 1356 | 0, /* rightshift */ | |
| 1357 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1358 | 16, /* bitsize */ | |
| 1359 | FALSE, /* pc_relative */ | |
| 1360 | 0, /* bitpos */ | |
| 1361 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1362 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1363 | "R_PPC64_DTPREL16", /* name */ | |
| 1364 | FALSE, /* partial_inplace */ | |
| 1365 | 0, /* src_mask */ | |
| 1366 | 0xffff, /* dst_mask */ | |
| 1367 | FALSE), /* pcrel_offset */ | |
| 1368 | ||
| 1369 | /* Like DTPREL16, but no overflow. */ | |
| 1370 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1371 | 0, /* rightshift */ | |
| 1372 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1373 | 16, /* bitsize */ | |
| 1374 | FALSE, /* pc_relative */ | |
| 1375 | 0, /* bitpos */ | |
| 1376 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1377 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1378 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1379 | FALSE, /* partial_inplace */ | |
| 1380 | 0, /* src_mask */ | |
| 1381 | 0xffff, /* dst_mask */ | |
| 1382 | FALSE), /* pcrel_offset */ | |
| 1383 | ||
| 1384 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1385 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1386 | 16, /* rightshift */ | |
| 1387 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1388 | 16, /* bitsize */ | |
| 1389 | FALSE, /* pc_relative */ | |
| 1390 | 0, /* bitpos */ | |
| f9c6b907 | 1391 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1392 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1393 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1394 | FALSE, /* partial_inplace */ | |
| 1395 | 0, /* src_mask */ | |
| 1396 | 0xffff, /* dst_mask */ | |
| 1397 | FALSE), /* pcrel_offset */ | |
| 1398 | ||
| 1399 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1400 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1401 | 16, /* rightshift */ | |
| 1402 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1403 | 16, /* bitsize */ | |
| 1404 | FALSE, /* pc_relative */ | |
| 1405 | 0, /* bitpos */ | |
| f9c6b907 | 1406 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1407 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1408 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1409 | FALSE, /* partial_inplace */ | |
| 1410 | 0, /* src_mask */ | |
| 1411 | 0xffff, /* dst_mask */ | |
| 1412 | FALSE), /* pcrel_offset */ | |
| 1413 | ||
| 1414 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1415 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1416 | 32, /* rightshift */ | |
| 1417 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1418 | 16, /* bitsize */ | |
| 1419 | FALSE, /* pc_relative */ | |
| 1420 | 0, /* bitpos */ | |
| 1421 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1422 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1423 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1424 | FALSE, /* partial_inplace */ | |
| 1425 | 0, /* src_mask */ | |
| 1426 | 0xffff, /* dst_mask */ | |
| 1427 | FALSE), /* pcrel_offset */ | |
| 1428 | ||
| 1429 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1430 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1431 | 32, /* rightshift */ | |
| 1432 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1433 | 16, /* bitsize */ | |
| 1434 | FALSE, /* pc_relative */ | |
| 1435 | 0, /* bitpos */ | |
| 1436 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1437 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1438 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1439 | FALSE, /* partial_inplace */ | |
| 1440 | 0, /* src_mask */ | |
| 1441 | 0xffff, /* dst_mask */ | |
| 1442 | FALSE), /* pcrel_offset */ | |
| 1443 | ||
| 1444 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1445 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1446 | 48, /* rightshift */ | |
| 1447 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1448 | 16, /* bitsize */ | |
| 1449 | FALSE, /* pc_relative */ | |
| 1450 | 0, /* bitpos */ | |
| 1451 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1452 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1453 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1454 | FALSE, /* partial_inplace */ | |
| 1455 | 0, /* src_mask */ | |
| 1456 | 0xffff, /* dst_mask */ | |
| 1457 | FALSE), /* pcrel_offset */ | |
| 1458 | ||
| 1459 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1460 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1461 | 48, /* rightshift */ | |
| 1462 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1463 | 16, /* bitsize */ | |
| 1464 | FALSE, /* pc_relative */ | |
| 1465 | 0, /* bitpos */ | |
| 1466 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1467 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1468 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1469 | FALSE, /* partial_inplace */ | |
| 1470 | 0, /* src_mask */ | |
| 1471 | 0xffff, /* dst_mask */ | |
| 1472 | FALSE), /* pcrel_offset */ | |
| 1473 | ||
| 1474 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1475 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1476 | 0, /* rightshift */ | |
| 1477 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1478 | 16, /* bitsize */ | |
| 1479 | FALSE, /* pc_relative */ | |
| 1480 | 0, /* bitpos */ | |
| 1481 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1482 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1483 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1484 | FALSE, /* partial_inplace */ | |
| 1485 | 0, /* src_mask */ | |
| 1486 | 0xfffc, /* dst_mask */ | |
| 1487 | FALSE), /* pcrel_offset */ | |
| 1488 | ||
| 1489 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1490 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1491 | 0, /* rightshift */ | |
| 1492 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1493 | 16, /* bitsize */ | |
| 1494 | FALSE, /* pc_relative */ | |
| 1495 | 0, /* bitpos */ | |
| 1496 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1497 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1498 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1499 | FALSE, /* partial_inplace */ | |
| 1500 | 0, /* src_mask */ | |
| 1501 | 0xfffc, /* dst_mask */ | |
| 1502 | FALSE), /* pcrel_offset */ | |
| 1503 | ||
| 1504 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1505 | sym+add and the value of the thread pointer (r13). */ | |
| 1506 | HOWTO (R_PPC64_TPREL64, | |
| 1507 | 0, /* rightshift */ | |
| 1508 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1509 | 64, /* bitsize */ | |
| 1510 | FALSE, /* pc_relative */ | |
| 1511 | 0, /* bitpos */ | |
| 1512 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1513 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1514 | "R_PPC64_TPREL64", /* name */ | |
| 1515 | FALSE, /* partial_inplace */ | |
| 1516 | 0, /* src_mask */ | |
| 1517 | ONES (64), /* dst_mask */ | |
| 1518 | FALSE), /* pcrel_offset */ | |
| 1519 | ||
| 1520 | /* A 16 bit tprel reloc. */ | |
| 1521 | HOWTO (R_PPC64_TPREL16, | |
| 1522 | 0, /* rightshift */ | |
| 1523 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1524 | 16, /* bitsize */ | |
| 1525 | FALSE, /* pc_relative */ | |
| 1526 | 0, /* bitpos */ | |
| 1527 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1528 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1529 | "R_PPC64_TPREL16", /* name */ | |
| 1530 | FALSE, /* partial_inplace */ | |
| 1531 | 0, /* src_mask */ | |
| 1532 | 0xffff, /* dst_mask */ | |
| 1533 | FALSE), /* pcrel_offset */ | |
| 1534 | ||
| 1535 | /* Like TPREL16, but no overflow. */ | |
| 1536 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1537 | 0, /* rightshift */ | |
| 1538 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1539 | 16, /* bitsize */ | |
| 1540 | FALSE, /* pc_relative */ | |
| 1541 | 0, /* bitpos */ | |
| 1542 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1543 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1544 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1545 | FALSE, /* partial_inplace */ | |
| 1546 | 0, /* src_mask */ | |
| 1547 | 0xffff, /* dst_mask */ | |
| 1548 | FALSE), /* pcrel_offset */ | |
| 1549 | ||
| 1550 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1551 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1552 | 16, /* rightshift */ | |
| 1553 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1554 | 16, /* bitsize */ | |
| 1555 | FALSE, /* pc_relative */ | |
| 1556 | 0, /* bitpos */ | |
| f9c6b907 | 1557 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1558 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1559 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1560 | FALSE, /* partial_inplace */ | |
| 1561 | 0, /* src_mask */ | |
| 1562 | 0xffff, /* dst_mask */ | |
| 1563 | FALSE), /* pcrel_offset */ | |
| 1564 | ||
| 1565 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1566 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1567 | 16, /* rightshift */ | |
| 1568 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1569 | 16, /* bitsize */ | |
| 1570 | FALSE, /* pc_relative */ | |
| 1571 | 0, /* bitpos */ | |
| f9c6b907 | 1572 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1573 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1574 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1575 | FALSE, /* partial_inplace */ | |
| 1576 | 0, /* src_mask */ | |
| 1577 | 0xffff, /* dst_mask */ | |
| 1578 | FALSE), /* pcrel_offset */ | |
| 1579 | ||
| 1580 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1581 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1582 | 32, /* rightshift */ | |
| 1583 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1584 | 16, /* bitsize */ | |
| 1585 | FALSE, /* pc_relative */ | |
| 1586 | 0, /* bitpos */ | |
| 1587 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1588 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1589 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1590 | FALSE, /* partial_inplace */ | |
| 1591 | 0, /* src_mask */ | |
| 1592 | 0xffff, /* dst_mask */ | |
| 1593 | FALSE), /* pcrel_offset */ | |
| 1594 | ||
| 1595 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1596 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1597 | 32, /* rightshift */ | |
| 1598 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1599 | 16, /* bitsize */ | |
| 1600 | FALSE, /* pc_relative */ | |
| 1601 | 0, /* bitpos */ | |
| 1602 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1603 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1604 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1605 | FALSE, /* partial_inplace */ | |
| 1606 | 0, /* src_mask */ | |
| 1607 | 0xffff, /* dst_mask */ | |
| 1608 | FALSE), /* pcrel_offset */ | |
| 1609 | ||
| 1610 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1611 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1612 | 48, /* rightshift */ | |
| 1613 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1614 | 16, /* bitsize */ | |
| 1615 | FALSE, /* pc_relative */ | |
| 1616 | 0, /* bitpos */ | |
| 1617 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1618 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1619 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1620 | FALSE, /* partial_inplace */ | |
| 1621 | 0, /* src_mask */ | |
| 1622 | 0xffff, /* dst_mask */ | |
| 1623 | FALSE), /* pcrel_offset */ | |
| 1624 | ||
| 1625 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1626 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1627 | 48, /* rightshift */ | |
| 1628 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1629 | 16, /* bitsize */ | |
| 1630 | FALSE, /* pc_relative */ | |
| 1631 | 0, /* bitpos */ | |
| 1632 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1633 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1634 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1635 | FALSE, /* partial_inplace */ | |
| 1636 | 0, /* src_mask */ | |
| 1637 | 0xffff, /* dst_mask */ | |
| 1638 | FALSE), /* pcrel_offset */ | |
| 1639 | ||
| 1640 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1641 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1642 | 0, /* rightshift */ | |
| 1643 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1644 | 16, /* bitsize */ | |
| 1645 | FALSE, /* pc_relative */ | |
| 1646 | 0, /* bitpos */ | |
| 1647 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1648 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1649 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1650 | FALSE, /* partial_inplace */ | |
| 1651 | 0, /* src_mask */ | |
| 1652 | 0xfffc, /* dst_mask */ | |
| 1653 | FALSE), /* pcrel_offset */ | |
| 1654 | ||
| 1655 | /* Like TPREL16_DS, but no overflow. */ | |
| 1656 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1657 | 0, /* rightshift */ | |
| 1658 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1659 | 16, /* bitsize */ | |
| 1660 | FALSE, /* pc_relative */ | |
| 1661 | 0, /* bitpos */ | |
| 1662 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1663 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1664 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1665 | FALSE, /* partial_inplace */ | |
| 1666 | 0, /* src_mask */ | |
| 1667 | 0xfffc, /* dst_mask */ | |
| 1668 | FALSE), /* pcrel_offset */ | |
| 1669 | ||
| 1670 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1671 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1672 | to the first entry relative to the TOC base (r2). */ | |
| 1673 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1674 | 0, /* rightshift */ | |
| 1675 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1676 | 16, /* bitsize */ | |
| 1677 | FALSE, /* pc_relative */ | |
| 1678 | 0, /* bitpos */ | |
| 1679 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1680 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1681 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1682 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1683 | 0, /* src_mask */ |
| 1684 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1685 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1686 | |
| 411e1bfb AM |
1687 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1688 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1689 | 0, /* rightshift */ |
| 1690 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1691 | 16, /* bitsize */ | |
| b34976b6 | 1692 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1693 | 0, /* bitpos */ |
| 1694 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1695 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1696 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1697 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1698 | 0, /* src_mask */ |
| 1699 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1700 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1701 | |
| 411e1bfb AM |
1702 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1703 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1704 | 16, /* rightshift */ |
| 1705 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1706 | 16, /* bitsize */ | |
| b34976b6 | 1707 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1708 | 0, /* bitpos */ |
| f9c6b907 | 1709 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1710 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1711 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1712 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1713 | 0, /* src_mask */ |
| 1714 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1715 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1716 | |
| 411e1bfb AM |
1717 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1718 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1719 | 16, /* rightshift */ |
| 1720 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1721 | 16, /* bitsize */ | |
| b34976b6 | 1722 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1723 | 0, /* bitpos */ |
| f9c6b907 | 1724 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1725 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1726 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1727 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1728 | 0, /* src_mask */ |
| 1729 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1730 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1731 | |
| 411e1bfb AM |
1732 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1733 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1734 | first entry relative to the TOC base (r2). */ | |
| 1735 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1736 | 0, /* rightshift */ |
| 1737 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1738 | 16, /* bitsize */ | |
| b34976b6 | 1739 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1740 | 0, /* bitpos */ |
| 411e1bfb AM |
1741 | complain_overflow_signed, /* complain_on_overflow */ |
| 1742 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1743 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1744 | FALSE, /* partial_inplace */ |
| d006db6c | 1745 | 0, /* src_mask */ |
| 411e1bfb | 1746 | 0xffff, /* dst_mask */ |
| b34976b6 | 1747 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1748 | |
| 411e1bfb AM |
1749 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1750 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1751 | 0, /* rightshift */ |
| 1752 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1753 | 16, /* bitsize */ | |
| b34976b6 | 1754 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1755 | 0, /* bitpos */ |
| 411e1bfb AM |
1756 | complain_overflow_dont, /* complain_on_overflow */ |
| 1757 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1758 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1759 | FALSE, /* partial_inplace */ |
| d006db6c | 1760 | 0, /* src_mask */ |
| 411e1bfb | 1761 | 0xffff, /* dst_mask */ |
| b34976b6 | 1762 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1763 | |
| 411e1bfb AM |
1764 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1765 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1766 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1767 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1768 | 16, /* bitsize */ | |
| b34976b6 | 1769 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1770 | 0, /* bitpos */ |
| f9c6b907 | 1771 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1772 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1773 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1774 | FALSE, /* partial_inplace */ |
| d006db6c | 1775 | 0, /* src_mask */ |
| 411e1bfb | 1776 | 0xffff, /* dst_mask */ |
| b34976b6 | 1777 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1778 | |
| 411e1bfb AM |
1779 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1780 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1781 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1782 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1783 | 16, /* bitsize */ | |
| b34976b6 | 1784 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1785 | 0, /* bitpos */ |
| f9c6b907 | 1786 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1787 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1788 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1789 | FALSE, /* partial_inplace */ |
| d006db6c | 1790 | 0, /* src_mask */ |
| 411e1bfb | 1791 | 0xffff, /* dst_mask */ |
| b34976b6 | 1792 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1793 | |
| 411e1bfb AM |
1794 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1795 | the offset to the entry relative to the TOC base (r2). */ | |
| 1796 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1797 | 0, /* rightshift */ |
| 1798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1799 | 16, /* bitsize */ | |
| b34976b6 | 1800 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1801 | 0, /* bitpos */ |
| 411e1bfb | 1802 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1803 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1804 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1805 | FALSE, /* partial_inplace */ |
| d006db6c | 1806 | 0, /* src_mask */ |
| 5bd4f169 | 1807 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1808 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1809 | |
| 411e1bfb AM |
1810 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1811 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1812 | 0, /* rightshift */ |
| c061c2d8 AM |
1813 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1814 | 16, /* bitsize */ | |
| b34976b6 | 1815 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1816 | 0, /* bitpos */ |
| 411e1bfb AM |
1817 | complain_overflow_dont, /* complain_on_overflow */ |
| 1818 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1819 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1820 | FALSE, /* partial_inplace */ |
| d006db6c | 1821 | 0, /* src_mask */ |
| c061c2d8 | 1822 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1823 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1824 | |
| 411e1bfb AM |
1825 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1826 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1827 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1828 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1829 | 16, /* bitsize */ | |
| b34976b6 | 1830 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1831 | 0, /* bitpos */ |
| f9c6b907 | 1832 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1833 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1834 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1835 | FALSE, /* partial_inplace */ |
| d006db6c | 1836 | 0, /* src_mask */ |
| 411e1bfb | 1837 | 0xffff, /* dst_mask */ |
| b34976b6 | 1838 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1839 | |
| 411e1bfb AM |
1840 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1841 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1842 | 16, /* rightshift */ | |
| 1843 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1844 | 16, /* bitsize */ | |
| 1845 | FALSE, /* pc_relative */ | |
| 1846 | 0, /* bitpos */ | |
| f9c6b907 | 1847 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1848 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1849 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1850 | FALSE, /* partial_inplace */ | |
| 1851 | 0, /* src_mask */ | |
| 1852 | 0xffff, /* dst_mask */ | |
| 1853 | FALSE), /* pcrel_offset */ | |
| 1854 | ||
| 1855 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1856 | offset to the entry relative to the TOC base (r2). */ | |
| 1857 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1858 | 0, /* rightshift */ |
| 1859 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1860 | 16, /* bitsize */ | |
| b34976b6 | 1861 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1862 | 0, /* bitpos */ |
| 1863 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1864 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1865 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1866 | FALSE, /* partial_inplace */ |
| d006db6c | 1867 | 0, /* src_mask */ |
| ad8e1ba5 | 1868 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1869 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1870 | |
| 411e1bfb AM |
1871 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1872 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1873 | 0, /* rightshift */ |
| 1874 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1875 | 16, /* bitsize */ | |
| b34976b6 | 1876 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1877 | 0, /* bitpos */ |
| 1878 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1879 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1880 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1881 | FALSE, /* partial_inplace */ |
| d006db6c | 1882 | 0, /* src_mask */ |
| ad8e1ba5 | 1883 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1884 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1885 | |
| 411e1bfb AM |
1886 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1887 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1888 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1889 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1890 | 16, /* bitsize */ | |
| b34976b6 | 1891 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1892 | 0, /* bitpos */ |
| f9c6b907 | 1893 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1894 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1895 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1896 | FALSE, /* partial_inplace */ |
| d006db6c | 1897 | 0, /* src_mask */ |
| 411e1bfb | 1898 | 0xffff, /* dst_mask */ |
| b34976b6 | 1899 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1900 | |
| 411e1bfb AM |
1901 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1902 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1903 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1904 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1905 | 16, /* bitsize */ | |
| b34976b6 | 1906 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1907 | 0, /* bitpos */ |
| f9c6b907 | 1908 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1909 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1910 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1911 | FALSE, /* partial_inplace */ |
| d006db6c | 1912 | 0, /* src_mask */ |
| 411e1bfb | 1913 | 0xffff, /* dst_mask */ |
| b34976b6 | 1914 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1915 | |
| 25f23106 AM |
1916 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1917 | 0, /* rightshift */ | |
| 1918 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1919 | 0, /* bitsize */ | |
| 1920 | FALSE, /* pc_relative */ | |
| 1921 | 0, /* bitpos */ | |
| 1922 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1923 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1924 | "R_PPC64_JMP_IREL", /* name */ | |
| 1925 | FALSE, /* partial_inplace */ | |
| 1926 | 0, /* src_mask */ | |
| 1927 | 0, /* dst_mask */ | |
| 1928 | FALSE), /* pcrel_offset */ | |
| 1929 | ||
| e054468f AM |
1930 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1931 | 0, /* rightshift */ | |
| 1932 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1933 | 64, /* bitsize */ | |
| 1934 | FALSE, /* pc_relative */ | |
| 1935 | 0, /* bitpos */ | |
| 1936 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1937 | bfd_elf_generic_reloc, /* special_function */ | |
| 1938 | "R_PPC64_IRELATIVE", /* name */ | |
| 1939 | FALSE, /* partial_inplace */ | |
| 1940 | 0, /* src_mask */ | |
| 1941 | ONES (64), /* dst_mask */ | |
| 1942 | FALSE), /* pcrel_offset */ | |
| 1943 | ||
| 25f23106 AM |
1944 | /* A 16 bit relative relocation. */ |
| 1945 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1946 | 0, /* rightshift */ | |
| 1947 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1948 | 16, /* bitsize */ | |
| 1949 | TRUE, /* pc_relative */ | |
| 1950 | 0, /* bitpos */ | |
| 1951 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 1952 | bfd_elf_generic_reloc, /* special_function */ | |
| 1953 | "R_PPC64_REL16", /* name */ | |
| 1954 | FALSE, /* partial_inplace */ | |
| 1955 | 0, /* src_mask */ | |
| 1956 | 0xffff, /* dst_mask */ | |
| 1957 | TRUE), /* pcrel_offset */ | |
| 1958 | ||
| 1959 | /* A 16 bit relative relocation without overflow. */ | |
| 1960 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1961 | 0, /* rightshift */ | |
| 1962 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1963 | 16, /* bitsize */ | |
| 1964 | TRUE, /* pc_relative */ | |
| 1965 | 0, /* bitpos */ | |
| 1966 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1967 | bfd_elf_generic_reloc, /* special_function */ | |
| 1968 | "R_PPC64_REL16_LO", /* name */ | |
| 1969 | FALSE, /* partial_inplace */ | |
| 1970 | 0, /* src_mask */ | |
| 1971 | 0xffff, /* dst_mask */ | |
| 1972 | TRUE), /* pcrel_offset */ | |
| 1973 | ||
| 1974 | /* The high order 16 bits of a relative address. */ | |
| 1975 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 1976 | 16, /* rightshift */ | |
| 1977 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1978 | 16, /* bitsize */ | |
| 1979 | TRUE, /* pc_relative */ | |
| 1980 | 0, /* bitpos */ | |
| f9c6b907 | 1981 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1982 | bfd_elf_generic_reloc, /* special_function */ |
| 1983 | "R_PPC64_REL16_HI", /* name */ | |
| 1984 | FALSE, /* partial_inplace */ | |
| 1985 | 0, /* src_mask */ | |
| 1986 | 0xffff, /* dst_mask */ | |
| 1987 | TRUE), /* pcrel_offset */ | |
| 1988 | ||
| 1989 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 1990 | the low 16 bits, treated as a signed number, is negative. */ | |
| 1991 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 1992 | 16, /* rightshift */ | |
| 1993 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1994 | 16, /* bitsize */ | |
| 1995 | TRUE, /* pc_relative */ | |
| 1996 | 0, /* bitpos */ | |
| f9c6b907 | 1997 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1998 | ppc64_elf_ha_reloc, /* special_function */ |
| 1999 | "R_PPC64_REL16_HA", /* name */ | |
| 2000 | FALSE, /* partial_inplace */ | |
| 2001 | 0, /* src_mask */ | |
| 2002 | 0xffff, /* dst_mask */ | |
| 2003 | TRUE), /* pcrel_offset */ | |
| 2004 | ||
| f9c6b907 AM |
2005 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2006 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2007 | 16, /* rightshift */ | |
| 2008 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2009 | 16, /* bitsize */ | |
| 2010 | FALSE, /* pc_relative */ | |
| 2011 | 0, /* bitpos */ | |
| 2012 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2013 | bfd_elf_generic_reloc, /* special_function */ | |
| 2014 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2015 | FALSE, /* partial_inplace */ | |
| 2016 | 0, /* src_mask */ | |
| 2017 | 0xffff, /* dst_mask */ | |
| 2018 | FALSE), /* pcrel_offset */ | |
| 2019 | ||
| 2020 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2021 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2022 | 16, /* rightshift */ | |
| 2023 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2024 | 16, /* bitsize */ | |
| 2025 | FALSE, /* pc_relative */ | |
| 2026 | 0, /* bitpos */ | |
| 2027 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2028 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2029 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2030 | FALSE, /* partial_inplace */ | |
| 2031 | 0, /* src_mask */ | |
| 2032 | 0xffff, /* dst_mask */ | |
| 2033 | FALSE), /* pcrel_offset */ | |
| 2034 | ||
| 2035 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2036 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2037 | 16, /* rightshift */ | |
| 2038 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2039 | 16, /* bitsize */ | |
| 2040 | FALSE, /* pc_relative */ | |
| 2041 | 0, /* bitpos */ | |
| 2042 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2043 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2044 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2045 | FALSE, /* partial_inplace */ | |
| 2046 | 0, /* src_mask */ | |
| 2047 | 0xffff, /* dst_mask */ | |
| 2048 | FALSE), /* pcrel_offset */ | |
| 2049 | ||
| 2050 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2051 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2052 | 16, /* rightshift */ | |
| 2053 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2054 | 16, /* bitsize */ | |
| 2055 | FALSE, /* pc_relative */ | |
| 2056 | 0, /* bitpos */ | |
| 2057 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2058 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2059 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2060 | FALSE, /* partial_inplace */ | |
| 2061 | 0, /* src_mask */ | |
| 2062 | 0xffff, /* dst_mask */ | |
| 2063 | FALSE), /* pcrel_offset */ | |
| 2064 | ||
| 2065 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2066 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2067 | 16, /* rightshift */ | |
| 2068 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2069 | 16, /* bitsize */ | |
| 2070 | FALSE, /* pc_relative */ | |
| 2071 | 0, /* bitpos */ | |
| 2072 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2073 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2074 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2075 | FALSE, /* partial_inplace */ | |
| 2076 | 0, /* src_mask */ | |
| 2077 | 0xffff, /* dst_mask */ | |
| 2078 | FALSE), /* pcrel_offset */ | |
| 2079 | ||
| 2080 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2081 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2082 | 16, /* rightshift */ | |
| 2083 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2084 | 16, /* bitsize */ | |
| 2085 | FALSE, /* pc_relative */ | |
| 2086 | 0, /* bitpos */ | |
| 2087 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2088 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2089 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2090 | FALSE, /* partial_inplace */ | |
| 2091 | 0, /* src_mask */ | |
| 2092 | 0xffff, /* dst_mask */ | |
| 2093 | FALSE), /* pcrel_offset */ | |
| 2094 | ||
| 5bd4f169 AM |
2095 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2096 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2097 | 0, /* rightshift */ | |
| 2098 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2099 | 0, /* bitsize */ | |
| b34976b6 | 2100 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2101 | 0, /* bitpos */ |
| 2102 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2103 | NULL, /* special_function */ | |
| 2104 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2105 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2106 | 0, /* src_mask */ |
| 2107 | 0, /* dst_mask */ | |
| b34976b6 | 2108 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2109 | |
| 2110 | /* GNU extension to record C++ vtable member usage. */ | |
| 2111 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2112 | 0, /* rightshift */ | |
| 2113 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2114 | 0, /* bitsize */ | |
| b34976b6 | 2115 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2116 | 0, /* bitpos */ |
| 2117 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2118 | NULL, /* special_function */ | |
| 2119 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2120 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2121 | 0, /* src_mask */ |
| 2122 | 0, /* dst_mask */ | |
| b34976b6 | 2123 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2124 | }; |
| 2125 | ||
| 2126 | \f | |
| 2127 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2128 | be done. */ | |
| 2129 | ||
| 2130 | static void | |
| 4ce794b7 | 2131 | ppc_howto_init (void) |
| 5bd4f169 AM |
2132 | { |
| 2133 | unsigned int i, type; | |
| 2134 | ||
| 2135 | for (i = 0; | |
| 2136 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
| 2137 | i++) | |
| 2138 | { | |
| 2139 | type = ppc64_elf_howto_raw[i].type; | |
| 2140 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
| 2141 | / sizeof (ppc64_elf_howto_table[0]))); | |
| 2142 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
| 2143 | } | |
| 2144 | } | |
| 2145 | ||
| 2146 | static reloc_howto_type * | |
| 4ce794b7 AM |
2147 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2148 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2149 | { |
| 411e1bfb | 2150 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2151 | |
| 2152 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2153 | /* Initialize howto table if needed. */ | |
| 2154 | ppc_howto_init (); | |
| 2155 | ||
| 4ce794b7 | 2156 | switch (code) |
| 5bd4f169 AM |
2157 | { |
| 2158 | default: | |
| 4ce794b7 | 2159 | return NULL; |
| 5bd4f169 | 2160 | |
| 411e1bfb AM |
2161 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2162 | break; | |
| 2163 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2164 | break; | |
| 2165 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2166 | break; | |
| 2167 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2168 | break; | |
| 2169 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2170 | break; | |
| 2171 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2172 | break; | |
| f9c6b907 AM |
2173 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2174 | break; | |
| 411e1bfb | 2175 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2176 | break; |
| f9c6b907 AM |
2177 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2178 | break; | |
| 411e1bfb | 2179 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2180 | break; |
| 411e1bfb | 2181 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2182 | break; |
| 411e1bfb | 2183 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2184 | break; |
| 411e1bfb | 2185 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2186 | break; |
| 411e1bfb | 2187 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2188 | break; |
| 411e1bfb | 2189 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2190 | break; |
| 411e1bfb | 2191 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2192 | break; |
| 411e1bfb | 2193 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2194 | break; |
| 411e1bfb | 2195 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2196 | break; |
| 411e1bfb | 2197 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2198 | break; |
| 411e1bfb | 2199 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2200 | break; |
| 411e1bfb | 2201 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2202 | break; |
| 411e1bfb | 2203 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2204 | break; |
| 411e1bfb | 2205 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2206 | break; |
| 411e1bfb | 2207 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2208 | break; |
| 411e1bfb | 2209 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2210 | break; |
| 411e1bfb | 2211 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2212 | break; |
| 411e1bfb | 2213 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2214 | break; |
| 411e1bfb | 2215 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2216 | break; |
| 411e1bfb | 2217 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2218 | break; |
| 411e1bfb | 2219 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2220 | break; |
| 411e1bfb | 2221 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2222 | break; |
| 411e1bfb | 2223 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2224 | break; |
| 411e1bfb | 2225 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2226 | break; |
| 411e1bfb | 2227 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2228 | break; |
| 411e1bfb | 2229 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2230 | break; |
| 411e1bfb | 2231 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2232 | break; |
| 411e1bfb | 2233 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2234 | break; |
| 411e1bfb | 2235 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2236 | break; |
| 411e1bfb | 2237 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2238 | break; |
| 411e1bfb | 2239 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2240 | break; |
| 411e1bfb | 2241 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2242 | break; |
| 411e1bfb | 2243 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2244 | break; |
| 411e1bfb | 2245 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2246 | break; |
| 411e1bfb | 2247 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2248 | break; |
| 411e1bfb | 2249 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2250 | break; |
| 411e1bfb | 2251 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2252 | break; |
| 411e1bfb | 2253 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2254 | break; |
| 411e1bfb | 2255 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2256 | break; |
| 411e1bfb | 2257 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2258 | break; |
| 411e1bfb | 2259 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2260 | break; |
| 411e1bfb | 2261 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2262 | break; |
| 411e1bfb | 2263 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2264 | break; |
| 411e1bfb | 2265 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2284 | break; |
| 727fc41e AM |
2285 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2286 | break; | |
| 2287 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2288 | break; | |
| 411e1bfb | 2289 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2296 | break; |
| f9c6b907 AM |
2297 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2298 | break; | |
| 411e1bfb | 2299 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2300 | break; |
| f9c6b907 AM |
2301 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2302 | break; | |
| 411e1bfb | 2303 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb AM |
2305 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2306 | break; | |
| 2307 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2308 | break; | |
| 2309 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2310 | break; | |
| f9c6b907 AM |
2311 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2312 | break; | |
| 411e1bfb AM |
2313 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2314 | break; | |
| f9c6b907 AM |
2315 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2316 | break; | |
| 411e1bfb AM |
2317 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2318 | break; | |
| 2319 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2320 | break; | |
| 2321 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2322 | break; | |
| 2323 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2324 | break; | |
| 2325 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2326 | break; | |
| 2327 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2328 | break; | |
| 2329 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2330 | break; | |
| 2331 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2332 | break; | |
| 2333 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2334 | break; | |
| 2335 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2336 | break; | |
| 2337 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2338 | break; | |
| 2339 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2340 | break; | |
| 2341 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2342 | break; | |
| 2343 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2344 | break; | |
| 2345 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2346 | break; | |
| 2347 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2348 | break; | |
| 2349 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2350 | break; | |
| 2351 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2352 | break; | |
| 2353 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2354 | break; | |
| 2355 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2356 | break; | |
| 2357 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2358 | break; | |
| 2359 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2360 | break; | |
| 2361 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2362 | break; | |
| 2363 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2364 | break; | |
| 2365 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2366 | break; | |
| 2367 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2368 | break; | |
| 2369 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2370 | break; | |
| 2371 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2372 | break; | |
| 2373 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2374 | break; | |
| 25f23106 AM |
2375 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2376 | break; | |
| 2377 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2378 | break; | |
| 2379 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2380 | break; | |
| 2381 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2382 | break; | |
| 411e1bfb AM |
2383 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2384 | break; | |
| 2385 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2386 | break; |
| 2387 | } | |
| 2388 | ||
| 4ce794b7 | 2389 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2390 | }; |
| 2391 | ||
| 157090f7 AM |
2392 | static reloc_howto_type * |
| 2393 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2394 | const char *r_name) | |
| 2395 | { | |
| 2396 | unsigned int i; | |
| 2397 | ||
| 2398 | for (i = 0; | |
| 2399 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
| 2400 | i++) | |
| 2401 | if (ppc64_elf_howto_raw[i].name != NULL | |
| 2402 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2403 | return &ppc64_elf_howto_raw[i]; | |
| 2404 | ||
| 2405 | return NULL; | |
| 2406 | } | |
| 2407 | ||
| 5bd4f169 AM |
2408 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2409 | ||
| 2410 | static void | |
| 4ce794b7 AM |
2411 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2412 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2413 | { |
| 65f38f15 AM |
2414 | unsigned int type; |
| 2415 | ||
| ef60b7ff | 2416 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2417 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2418 | ppc_howto_init (); |
| 2419 | ||
| 65f38f15 | 2420 | type = ELF64_R_TYPE (dst->r_info); |
| d0fb9a8d JJ |
2421 | if (type >= (sizeof (ppc64_elf_howto_table) |
| 2422 | / sizeof (ppc64_elf_howto_table[0]))) | |
| 2423 | { | |
| 2424 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
| 3ec2b351 NC |
2425 | abfd, (int) type); |
| 2426 | type = R_PPC64_NONE; | |
| d0fb9a8d | 2427 | } |
| 65f38f15 | 2428 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2429 | } |
| 2430 | ||
| 04c9666a | 2431 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2432 | |
| 2433 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2434 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2435 | void *data, asection *input_section, | |
| 2436 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2437 | { |
| 805fc799 AM |
2438 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2439 | call the generic function. Any adjustment will be done at final | |
| 2440 | link time. */ | |
| 2441 | if (output_bfd != NULL) | |
| cedb70c5 | 2442 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2443 | input_section, output_bfd, error_message); |
| 2444 | ||
| 2445 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2446 | We won't actually be using the low 16 bits, so trashing them | |
| 2447 | doesn't matter. */ | |
| 2448 | reloc_entry->addend += 0x8000; | |
| 2449 | return bfd_reloc_continue; | |
| 2450 | } | |
| 5bd4f169 | 2451 | |
| 2441e016 AM |
2452 | static bfd_reloc_status_type |
| 2453 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2454 | void *data, asection *input_section, | |
| 2455 | bfd *output_bfd, char **error_message) | |
| 2456 | { | |
| 2457 | if (output_bfd != NULL) | |
| 2458 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2459 | input_section, output_bfd, error_message); | |
| 2460 | ||
| 699733f6 AM |
2461 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2462 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2463 | { |
| 2464 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2465 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2466 | NULL, NULL, FALSE); |
| 2441e016 AM |
2467 | if (dest != (bfd_vma) -1) |
| 2468 | reloc_entry->addend = dest - (symbol->value | |
| 2469 | + symbol->section->output_section->vma | |
| 2470 | + symbol->section->output_offset); | |
| 2471 | } | |
| 2472 | return bfd_reloc_continue; | |
| 2473 | } | |
| 2474 | ||
| 805fc799 | 2475 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2476 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2477 | void *data, asection *input_section, | |
| 2478 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2479 | { |
| 2480 | long insn; | |
| 04c9666a | 2481 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2482 | bfd_size_type octets; |
| 794e51c0 AM |
2483 | /* Assume 'at' branch hints. */ |
| 2484 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2485 | |
| 2486 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2487 | call the generic function. Any adjustment will be done at final | |
| 2488 | link time. */ | |
| 5bd4f169 | 2489 | if (output_bfd != NULL) |
| cedb70c5 | 2490 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2491 | input_section, output_bfd, error_message); |
| 2492 | ||
| 2493 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2494 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2495 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2496 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2497 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2498 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2499 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2500 | |
| 794e51c0 | 2501 | if (is_isa_v2) |
| 5bd4f169 | 2502 | { |
| 805fc799 AM |
2503 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2504 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2505 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2506 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2507 | insn |= 0x02 << 21; | |
| 2508 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2509 | insn |= 0x08 << 21; | |
| 2510 | else | |
| 2441e016 | 2511 | goto out; |
| 5bd4f169 | 2512 | } |
| 805fc799 AM |
2513 | else |
| 2514 | { | |
| 2515 | bfd_vma target = 0; | |
| 2516 | bfd_vma from; | |
| 5bd4f169 | 2517 | |
| 805fc799 AM |
2518 | if (!bfd_is_com_section (symbol->section)) |
| 2519 | target = symbol->value; | |
| 2520 | target += symbol->section->output_section->vma; | |
| 2521 | target += symbol->section->output_offset; | |
| 2522 | target += reloc_entry->addend; | |
| 5bd4f169 | 2523 | |
| 805fc799 AM |
2524 | from = (reloc_entry->address |
| 2525 | + input_section->output_offset | |
| 2526 | + input_section->output_section->vma); | |
| 5bd4f169 | 2527 | |
| 805fc799 AM |
2528 | /* Invert 'y' bit if not the default. */ |
| 2529 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2530 | insn ^= 0x01 << 21; | |
| 2531 | } | |
| 4ce794b7 | 2532 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2533 | out: |
| 2534 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2535 | input_section, output_bfd, error_message); | |
| 805fc799 | 2536 | } |
| 5bd4f169 | 2537 | |
| 805fc799 | 2538 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2539 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2540 | void *data, asection *input_section, | |
| 2541 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2542 | { |
| 2543 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2544 | call the generic function. Any adjustment will be done at final | |
| 2545 | link time. */ | |
| 2546 | if (output_bfd != NULL) | |
| cedb70c5 | 2547 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2548 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2549 | |
| 805fc799 AM |
2550 | /* Subtract the symbol section base address. */ |
| 2551 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2552 | return bfd_reloc_continue; |
| 2553 | } | |
| 2554 | ||
| 805fc799 | 2555 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2556 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2557 | void *data, asection *input_section, | |
| 2558 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2559 | { |
| 2560 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2561 | call the generic function. Any adjustment will be done at final | |
| 2562 | link time. */ | |
| 2563 | if (output_bfd != NULL) | |
| cedb70c5 | 2564 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2565 | input_section, output_bfd, error_message); |
| 2566 | ||
| 2567 | /* Subtract the symbol section base address. */ | |
| 2568 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2569 | ||
| 2570 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2571 | reloc_entry->addend += 0x8000; | |
| 2572 | return bfd_reloc_continue; | |
| 2573 | } | |
| 2574 | ||
| 2575 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2576 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2577 | void *data, asection *input_section, | |
| 2578 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2579 | { |
| 2580 | bfd_vma TOCstart; | |
| 2581 | ||
| 2582 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2583 | call the generic function. Any adjustment will be done at final | |
| 2584 | link time. */ | |
| 2585 | if (output_bfd != NULL) | |
| cedb70c5 | 2586 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2587 | input_section, output_bfd, error_message); |
| 2588 | ||
| 2589 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2590 | if (TOCstart == 0) | |
| 1c865ab2 | 2591 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2592 | |
| 2593 | /* Subtract the TOC base address. */ | |
| 2594 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2595 | return bfd_reloc_continue; | |
| 2596 | } | |
| 2597 | ||
| 2598 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2599 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2600 | void *data, asection *input_section, | |
| 2601 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2602 | { |
| 2603 | bfd_vma TOCstart; | |
| 2604 | ||
| 2605 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2606 | call the generic function. Any adjustment will be done at final | |
| 2607 | link time. */ | |
| 2608 | if (output_bfd != NULL) | |
| cedb70c5 | 2609 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2610 | input_section, output_bfd, error_message); |
| 2611 | ||
| 2612 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2613 | if (TOCstart == 0) | |
| 1c865ab2 | 2614 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2615 | |
| 2616 | /* Subtract the TOC base address. */ | |
| 2617 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2618 | ||
| 2619 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2620 | reloc_entry->addend += 0x8000; | |
| 2621 | return bfd_reloc_continue; | |
| 2622 | } | |
| 2623 | ||
| 2624 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2625 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2626 | void *data, asection *input_section, | |
| 2627 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2628 | { |
| 2629 | bfd_vma TOCstart; | |
| 2630 | bfd_size_type octets; | |
| 2631 | ||
| 2632 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2633 | call the generic function. Any adjustment will be done at final | |
| 2634 | link time. */ | |
| 2635 | if (output_bfd != NULL) | |
| cedb70c5 | 2636 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2637 | input_section, output_bfd, error_message); |
| 2638 | ||
| 2639 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2640 | if (TOCstart == 0) | |
| 1c865ab2 | 2641 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2642 | |
| 2643 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2644 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2645 | return bfd_reloc_ok; | |
| 2646 | } | |
| 2647 | ||
| 2648 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2649 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2650 | void *data, asection *input_section, | |
| 2651 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2652 | { |
| 2653 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2654 | call the generic function. Any adjustment will be done at final | |
| 2655 | link time. */ | |
| 2656 | if (output_bfd != NULL) | |
| cedb70c5 | 2657 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2658 | input_section, output_bfd, error_message); |
| 2659 | ||
| 2660 | if (error_message != NULL) | |
| 2661 | { | |
| 2662 | static char buf[60]; | |
| 2663 | sprintf (buf, "generic linker can't handle %s", | |
| 2664 | reloc_entry->howto->name); | |
| 2665 | *error_message = buf; | |
| 2666 | } | |
| 2667 | return bfd_reloc_dangerous; | |
| 2668 | } | |
| 2669 | ||
| 927be08e AM |
2670 | /* Track GOT entries needed for a given symbol. We might need more |
| 2671 | than one got entry per symbol. */ | |
| 2672 | struct got_entry | |
| 2673 | { | |
| 2674 | struct got_entry *next; | |
| 2675 | ||
| 2676 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2677 | bfd_vma addend; | |
| 2678 | ||
| 2679 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2680 | symbol referenced from different input files. This is to support | |
| 2681 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2682 | from one input file to another. After partitioning into TOC groups | |
| 2683 | we merge entries within the group. | |
| 2684 | ||
| 2685 | Point to the BFD owning this GOT entry. */ | |
| 2686 | bfd *owner; | |
| 2687 | ||
| 2688 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2689 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2690 | unsigned char tls_type; |
| 927be08e AM |
2691 | |
| 2692 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2693 | unsigned char is_indirect; |
| 927be08e AM |
2694 | |
| 2695 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2696 | union | |
| 2697 | { | |
| 2698 | bfd_signed_vma refcount; | |
| 2699 | bfd_vma offset; | |
| 2700 | struct got_entry *ent; | |
| 2701 | } got; | |
| 2702 | }; | |
| 2703 | ||
| 2704 | /* The same for PLT. */ | |
| 2705 | struct plt_entry | |
| 2706 | { | |
| 2707 | struct plt_entry *next; | |
| 2708 | ||
| 2709 | bfd_vma addend; | |
| 2710 | ||
| 2711 | union | |
| 2712 | { | |
| 2713 | bfd_signed_vma refcount; | |
| 2714 | bfd_vma offset; | |
| 2715 | } plt; | |
| 2716 | }; | |
| 2717 | ||
| e717da7e AM |
2718 | struct ppc64_elf_obj_tdata |
| 2719 | { | |
| 2720 | struct elf_obj_tdata elf; | |
| 2721 | ||
| 2722 | /* Shortcuts to dynamic linker sections. */ | |
| 2723 | asection *got; | |
| 2724 | asection *relgot; | |
| 2725 | ||
| b3fac117 AM |
2726 | /* Used during garbage collection. We attach global symbols defined |
| 2727 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2728 | asection *deleted_section; | |
| 81688140 | 2729 | |
| 927be08e | 2730 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2731 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2732 | struct got_entry tlsld_got; |
| 8860955f | 2733 | |
| 729eabd5 AM |
2734 | union { |
| 2735 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2736 | Elf_Internal_Rela *relocs; | |
| 2737 | ||
| 2738 | /* Section contents. */ | |
| 2739 | bfd_byte *contents; | |
| 2740 | } opd; | |
| d77c8a4b AM |
2741 | |
| 2742 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2743 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2744 | unsigned int has_small_toc_reloc : 1; |
| 2745 | ||
| 560c8763 AM |
2746 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2747 | instruction not one we handle. */ | |
| 2748 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2749 | }; |
| 2750 | ||
| 2751 | #define ppc64_elf_tdata(bfd) \ | |
| 2752 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2753 | ||
| 2754 | #define ppc64_tlsld_got(bfd) \ | |
| 2755 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2756 | ||
| 0c8d6e5c AM |
2757 | #define is_ppc64_elf(bfd) \ |
| 2758 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2759 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2760 | |
| e717da7e AM |
2761 | /* Override the generic function because we store some extras. */ |
| 2762 | ||
| 2763 | static bfd_boolean | |
| 2764 | ppc64_elf_mkobject (bfd *abfd) | |
| 2765 | { | |
| 0ffa91dd | 2766 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2767 | PPC64_ELF_DATA); |
| e717da7e AM |
2768 | } |
| 2769 | ||
| feee612b AM |
2770 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 2771 | default is 32 bit. */ | |
| 2772 | ||
| b34976b6 | 2773 | static bfd_boolean |
| 4ce794b7 | 2774 | ppc64_elf_object_p (bfd *abfd) |
| feee612b AM |
2775 | { |
| 2776 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
| 2777 | { | |
| 2778 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2779 | ||
| 2780 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2781 | { | |
| 2782 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2783 | abfd->arch_info = abfd->arch_info->next; | |
| 2784 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2785 | } | |
| 2786 | } | |
| b34976b6 | 2787 | return TRUE; |
| feee612b AM |
2788 | } |
| 2789 | ||
| d37c89e5 AM |
2790 | /* Support for core dump NOTE sections. */ |
| 2791 | ||
| 2792 | static bfd_boolean | |
| 2793 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2794 | { | |
| eea6121a | 2795 | size_t offset, size; |
| d37c89e5 AM |
2796 | |
| 2797 | if (note->descsz != 504) | |
| 2798 | return FALSE; | |
| 2799 | ||
| 2800 | /* pr_cursig */ | |
| 228e534f | 2801 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2802 | |
| 2803 | /* pr_pid */ | |
| 228e534f | 2804 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2805 | |
| 2806 | /* pr_reg */ | |
| 2807 | offset = 112; | |
| eea6121a | 2808 | size = 384; |
| d37c89e5 AM |
2809 | |
| 2810 | /* Make a ".reg/999" section. */ | |
| 2811 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2812 | size, note->descpos + offset); |
| d37c89e5 AM |
2813 | } |
| 2814 | ||
| 2815 | static bfd_boolean | |
| 2816 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2817 | { | |
| 2818 | if (note->descsz != 136) | |
| 2819 | return FALSE; | |
| 2820 | ||
| 228e534f | 2821 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2822 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2823 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2824 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2825 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2826 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2827 | ||
| 2828 | return TRUE; | |
| 2829 | } | |
| 2830 | ||
| 183e98be AM |
2831 | static char * |
| 2832 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2833 | ...) | |
| 2834 | { | |
| 2835 | switch (note_type) | |
| 2836 | { | |
| 2837 | default: | |
| 2838 | return NULL; | |
| 2839 | ||
| 2840 | case NT_PRPSINFO: | |
| 2841 | { | |
| 2842 | char data[136]; | |
| 2843 | va_list ap; | |
| 2844 | ||
| 2845 | va_start (ap, note_type); | |
| 75cd47ed | 2846 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2847 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2848 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2849 | va_end (ap); | |
| 2850 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2851 | "CORE", note_type, data, sizeof (data)); | |
| 2852 | } | |
| 2853 | ||
| 2854 | case NT_PRSTATUS: | |
| 2855 | { | |
| 2856 | char data[504]; | |
| 2857 | va_list ap; | |
| 2858 | long pid; | |
| 2859 | int cursig; | |
| 2860 | const void *greg; | |
| 2861 | ||
| 2862 | va_start (ap, note_type); | |
| 2863 | memset (data, 0, 112); | |
| 2864 | pid = va_arg (ap, long); | |
| 2865 | bfd_put_32 (abfd, pid, data + 32); | |
| 2866 | cursig = va_arg (ap, int); | |
| 2867 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2868 | greg = va_arg (ap, const void *); | |
| 2869 | memcpy (data + 112, greg, 384); | |
| 2870 | memset (data + 496, 0, 8); | |
| 2871 | va_end (ap); | |
| 2872 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2873 | "CORE", note_type, data, sizeof (data)); | |
| 2874 | } | |
| 2875 | } | |
| 2876 | } | |
| 2877 | ||
| 5d35169e AM |
2878 | /* Add extra PPC sections. */ |
| 2879 | ||
| b35d266b | 2880 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 2881 | { |
| 0112cd26 NC |
2882 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 2883 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2884 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2885 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2886 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2887 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 2888 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
2889 | }; |
| 2890 | ||
| 7c8fe5c4 AM |
2891 | enum _ppc64_sec_type { |
| 2892 | sec_normal = 0, | |
| 2893 | sec_opd = 1, | |
| 2894 | sec_toc = 2 | |
| 2895 | }; | |
| 2896 | ||
| f0abc2a1 AM |
2897 | struct _ppc64_elf_section_data |
| 2898 | { | |
| 2899 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 2900 | |
| f0abc2a1 AM |
2901 | union |
| 2902 | { | |
| 74f0fb50 AM |
2903 | /* An array with one entry for each opd function descriptor. */ |
| 2904 | struct _opd_sec_data | |
| 2905 | { | |
| 2906 | /* Points to the function code section for local opd entries. */ | |
| 2907 | asection **func_sec; | |
| 2908 | ||
| 2909 | /* After editing .opd, adjust references to opd local syms. */ | |
| 2910 | long *adjust; | |
| 2911 | } opd; | |
| 7c8fe5c4 | 2912 | |
| 3a71aa26 AM |
2913 | /* An array for toc sections, indexed by offset/8. */ |
| 2914 | struct _toc_sec_data | |
| 2915 | { | |
| 2916 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 2917 | unsigned *symndx; | |
| 2918 | ||
| 2919 | /* And the relocation addend. */ | |
| 2920 | bfd_vma *add; | |
| 2921 | } toc; | |
| 7c8fe5c4 AM |
2922 | } u; |
| 2923 | ||
| 2924 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 2925 | |
| 7c8fe5c4 AM |
2926 | /* Flag set when small branches are detected. Used to |
| 2927 | select suitable defaults for the stub group size. */ | |
| 2928 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
2929 | }; |
| 2930 | ||
| 2931 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 2932 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
2933 | |
| 2934 | static bfd_boolean | |
| 4ce794b7 | 2935 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 2936 | { |
| f592407e AM |
2937 | if (!sec->used_by_bfd) |
| 2938 | { | |
| 2939 | struct _ppc64_elf_section_data *sdata; | |
| 2940 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 2941 | |
| f592407e AM |
2942 | sdata = bfd_zalloc (abfd, amt); |
| 2943 | if (sdata == NULL) | |
| 2944 | return FALSE; | |
| 2945 | sec->used_by_bfd = sdata; | |
| 2946 | } | |
| f0abc2a1 AM |
2947 | |
| 2948 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 2949 | } | |
| 4025353c | 2950 | |
| 74f0fb50 | 2951 | static struct _opd_sec_data * |
| 4025353c AM |
2952 | get_opd_info (asection * sec) |
| 2953 | { | |
| 2954 | if (sec != NULL | |
| 2955 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 2956 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 2957 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
2958 | return NULL; |
| 2959 | } | |
| ee67d69a AM |
2960 | |
| 2961 | static inline int | |
| 2962 | abiversion (bfd *abfd) | |
| 2963 | { | |
| 2964 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 2965 | } | |
| 2966 | ||
| 2967 | static inline void | |
| 2968 | set_abiversion (bfd *abfd, int ver) | |
| 2969 | { | |
| 2970 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 2971 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 2972 | } | |
| 90e3cdf2 JJ |
2973 | \f |
| 2974 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 JJ |
2975 | static bfd_boolean synthetic_relocatable; |
| 2976 | ||
| 699733f6 | 2977 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
2978 | |
| 2979 | static int | |
| 2980 | compare_symbols (const void *ap, const void *bp) | |
| 2981 | { | |
| 2982 | const asymbol *a = * (const asymbol **) ap; | |
| 2983 | const asymbol *b = * (const asymbol **) bp; | |
| 2984 | ||
| 699733f6 AM |
2985 | /* Section symbols first. */ |
| 2986 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 2987 | return -1; |
| 699733f6 | 2988 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
2989 | return 1; |
| 2990 | ||
| 699733f6 | 2991 | /* then .opd symbols. */ |
| ffcfec52 AM |
2992 | if (strcmp (a->section->name, ".opd") == 0 |
| 2993 | && strcmp (b->section->name, ".opd") != 0) | |
| 90e3cdf2 | 2994 | return -1; |
| ffcfec52 AM |
2995 | if (strcmp (a->section->name, ".opd") != 0 |
| 2996 | && strcmp (b->section->name, ".opd") == 0) | |
| 90e3cdf2 JJ |
2997 | return 1; |
| 2998 | ||
| 699733f6 | 2999 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3000 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3001 | == (SEC_CODE | SEC_ALLOC) | |
| 3002 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3003 | != (SEC_CODE | SEC_ALLOC)) | |
| 3004 | return -1; | |
| 3005 | ||
| 3006 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3007 | != (SEC_CODE | SEC_ALLOC) | |
| 3008 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3009 | == (SEC_CODE | SEC_ALLOC)) | |
| 3010 | return 1; | |
| 3011 | ||
| 3012 | if (synthetic_relocatable) | |
| 3013 | { | |
| 3014 | if (a->section->id < b->section->id) | |
| 3015 | return -1; | |
| 3016 | ||
| 3017 | if (a->section->id > b->section->id) | |
| 3018 | return 1; | |
| 3019 | } | |
| 3020 | ||
| 3021 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3022 | return -1; | |
| 3023 | ||
| 3024 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3025 | return 1; | |
| 3026 | ||
| 4d35a0aa AM |
3027 | /* For syms with the same value, prefer strong dynamic global function |
| 3028 | syms over other syms. */ | |
| 3029 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3030 | return -1; | |
| 3031 | ||
| 3032 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3033 | return 1; | |
| 3034 | ||
| 3035 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3036 | return -1; | |
| 3037 | ||
| 3038 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3039 | return 1; | |
| 3040 | ||
| 3041 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3042 | return -1; | |
| 3043 | ||
| 3044 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3045 | return 1; | |
| 3046 | ||
| 3047 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3048 | return -1; | |
| 3049 | ||
| 3050 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3051 | return 1; | |
| 3052 | ||
| 90e3cdf2 JJ |
3053 | return 0; |
| 3054 | } | |
| 3055 | ||
| 699733f6 | 3056 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3057 | |
| 699733f6 AM |
3058 | static asymbol * |
| 3059 | sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value) | |
| 90e3cdf2 | 3060 | { |
| 699733f6 | 3061 | long mid; |
| 90e3cdf2 | 3062 | |
| 699733f6 AM |
3063 | if (id == -1) |
| 3064 | { | |
| 3065 | while (lo < hi) | |
| 3066 | { | |
| 3067 | mid = (lo + hi) >> 1; | |
| 3068 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3069 | lo = mid + 1; | |
| 3070 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3071 | hi = mid; | |
| 3072 | else | |
| 3073 | return syms[mid]; | |
| 3074 | } | |
| 3075 | } | |
| 3076 | else | |
| 3077 | { | |
| 3078 | while (lo < hi) | |
| 3079 | { | |
| 3080 | mid = (lo + hi) >> 1; | |
| 3081 | if (syms[mid]->section->id < id) | |
| 3082 | lo = mid + 1; | |
| 3083 | else if (syms[mid]->section->id > id) | |
| 3084 | hi = mid; | |
| 3085 | else if (syms[mid]->value < value) | |
| 3086 | lo = mid + 1; | |
| 3087 | else if (syms[mid]->value > value) | |
| 3088 | hi = mid; | |
| 3089 | else | |
| 3090 | return syms[mid]; | |
| 3091 | } | |
| 3092 | } | |
| 3093 | return NULL; | |
| 90e3cdf2 JJ |
3094 | } |
| 3095 | ||
| 468392fb AM |
3096 | static bfd_boolean |
| 3097 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3098 | { | |
| 3099 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3100 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3101 | && section->vma <= vma | |
| 3102 | && vma < section->vma + section->size); | |
| 3103 | } | |
| 3104 | ||
| 699733f6 | 3105 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| 468392fb | 3106 | entry syms. Also generate @plt symbols for the glink branch table. */ |
| 90e3cdf2 JJ |
3107 | |
| 3108 | static long | |
| a7535cf3 AM |
3109 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3110 | long static_count, asymbol **static_syms, | |
| 3111 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3112 | asymbol **ret) |
| 90e3cdf2 JJ |
3113 | { |
| 3114 | asymbol *s; | |
| 699733f6 AM |
3115 | long i; |
| 3116 | long count; | |
| 90e3cdf2 | 3117 | char *names; |
| a7535cf3 | 3118 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3119 | asection *opd = NULL; |
| 90e3cdf2 | 3120 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3121 | asymbol **syms; |
| ee67d69a | 3122 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3123 | |
| 3124 | *ret = NULL; | |
| 3125 | ||
| ee67d69a AM |
3126 | if (abi < 2) |
| 3127 | { | |
| 3128 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3129 | if (opd == NULL && abi == 1) | |
| 3130 | return 0; | |
| 3131 | } | |
| 90e3cdf2 | 3132 | |
| a7535cf3 | 3133 | symcount = static_count; |
| c9727e01 | 3134 | if (!relocatable) |
| a7535cf3 | 3135 | symcount += dyn_count; |
| 90e3cdf2 | 3136 | if (symcount == 0) |
| c9727e01 | 3137 | return 0; |
| 90e3cdf2 | 3138 | |
| a7535cf3 AM |
3139 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3140 | if (syms == NULL) | |
| 7356fed5 | 3141 | return -1; |
| a7535cf3 AM |
3142 | |
| 3143 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3144 | { | |
| 3145 | /* Use both symbol tables. */ | |
| 3146 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3147 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3148 | } | |
| 3149 | else if (!relocatable && static_count == 0) | |
| 3150 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3151 | else | |
| 3152 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3153 | ||
| 90e3cdf2 | 3154 | synthetic_relocatable = relocatable; |
| 595da8c5 | 3155 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3156 | |
| c9727e01 AM |
3157 | if (!relocatable && symcount > 1) |
| 3158 | { | |
| 3159 | long j; | |
| 3160 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3161 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3162 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3163 | for (i = 1, j = 1; i < symcount; ++i) |
| 3164 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3165 | != syms[i]->value + syms[i]->section->vma) | |
| 3166 | syms[j++] = syms[i]; | |
| 3167 | symcount = j; | |
| 3168 | } | |
| 3169 | ||
| 699733f6 | 3170 | i = 0; |
| ffcfec52 | 3171 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| 699733f6 AM |
3172 | ++i; |
| 3173 | codesecsym = i; | |
| 90e3cdf2 | 3174 | |
| 699733f6 AM |
3175 | for (; i < symcount; ++i) |
| 3176 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3177 | != (SEC_CODE | SEC_ALLOC)) | |
| 3178 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3179 | break; | |
| 3180 | codesecsymend = i; | |
| 90e3cdf2 | 3181 | |
| 699733f6 AM |
3182 | for (; i < symcount; ++i) |
| 3183 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3184 | break; | |
| 3185 | secsymend = i; | |
| 90e3cdf2 | 3186 | |
| 699733f6 | 3187 | for (; i < symcount; ++i) |
| ffcfec52 | 3188 | if (strcmp (syms[i]->section->name, ".opd") != 0) |
| 699733f6 AM |
3189 | break; |
| 3190 | opdsymend = i; | |
| 90e3cdf2 | 3191 | |
| 699733f6 AM |
3192 | for (; i < symcount; ++i) |
| 3193 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3194 | != (SEC_CODE | SEC_ALLOC)) | |
| 3195 | break; | |
| 3196 | symcount = i; | |
| 3197 | ||
| c9727e01 | 3198 | count = 0; |
| 90e3cdf2 | 3199 | |
| 699733f6 | 3200 | if (relocatable) |
| 90e3cdf2 | 3201 | { |
| 699733f6 AM |
3202 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3203 | arelent *r; | |
| 3204 | size_t size; | |
| 3205 | long relcount; | |
| 90e3cdf2 | 3206 | |
| 468392fb AM |
3207 | if (opdsymend == secsymend) |
| 3208 | goto done; | |
| 3209 | ||
| 699733f6 | 3210 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3211 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3212 | if (relcount == 0) |
| c9727e01 | 3213 | goto done; |
| 90e3cdf2 | 3214 | |
| 7356fed5 AM |
3215 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3216 | { | |
| 3217 | count = -1; | |
| 3218 | goto done; | |
| 3219 | } | |
| 3220 | ||
| 699733f6 | 3221 | size = 0; |
| 595da8c5 | 3222 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3223 | { |
| 3224 | asymbol *sym; | |
| 90e3cdf2 | 3225 | |
| 595da8c5 | 3226 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3227 | && r->address < syms[i]->value + opd->vma) |
| 3228 | ++r; | |
| 90e3cdf2 | 3229 | |
| 595da8c5 | 3230 | if (r == opd->relocation + relcount) |
| 699733f6 | 3231 | break; |
| 90e3cdf2 | 3232 | |
| 699733f6 AM |
3233 | if (r->address != syms[i]->value + opd->vma) |
| 3234 | continue; | |
| 90e3cdf2 | 3235 | |
| 699733f6 AM |
3236 | if (r->howto->type != R_PPC64_ADDR64) |
| 3237 | continue; | |
| 90e3cdf2 | 3238 | |
| 699733f6 AM |
3239 | sym = *r->sym_ptr_ptr; |
| 3240 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3241 | sym->section->id, sym->value + r->addend)) | |
| 3242 | { | |
| 3243 | ++count; | |
| 3244 | size += sizeof (asymbol); | |
| 3245 | size += strlen (syms[i]->name) + 2; | |
| 3246 | } | |
| 3247 | } | |
| 90e3cdf2 | 3248 | |
| 699733f6 AM |
3249 | s = *ret = bfd_malloc (size); |
| 3250 | if (s == NULL) | |
| 3251 | { | |
| 7356fed5 | 3252 | count = -1; |
| c9727e01 | 3253 | goto done; |
| 699733f6 | 3254 | } |
| 90e3cdf2 | 3255 | |
| 699733f6 | 3256 | names = (char *) (s + count); |
| 90e3cdf2 | 3257 | |
| 595da8c5 | 3258 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3259 | { |
| 699733f6 | 3260 | asymbol *sym; |
| 90e3cdf2 | 3261 | |
| 595da8c5 | 3262 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3263 | && r->address < syms[i]->value + opd->vma) |
| 3264 | ++r; | |
| 90e3cdf2 | 3265 | |
| 595da8c5 | 3266 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3267 | break; |
| 3268 | ||
| 3269 | if (r->address != syms[i]->value + opd->vma) | |
| 3270 | continue; | |
| 3271 | ||
| 3272 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3273 | continue; | |
| 90e3cdf2 | 3274 | |
| 699733f6 AM |
3275 | sym = *r->sym_ptr_ptr; |
| 3276 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3277 | sym->section->id, sym->value + r->addend)) | |
| 3278 | { | |
| 3279 | size_t len; | |
| 3280 | ||
| 3281 | *s = *syms[i]; | |
| 6ba2a415 | 3282 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3283 | s->section = sym->section; |
| 3284 | s->value = sym->value + r->addend; | |
| 3285 | s->name = names; | |
| 3286 | *names++ = '.'; | |
| 3287 | len = strlen (syms[i]->name); | |
| 3288 | memcpy (names, syms[i]->name, len + 1); | |
| 3289 | names += len + 1; | |
| 6f610d07 UW |
3290 | /* Have udata.p point back to the original symbol this |
| 3291 | synthetic symbol was derived from. */ | |
| 3292 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3293 | s++; |
| 3294 | } | |
| 3295 | } | |
| 3296 | } | |
| 3297 | else | |
| 90e3cdf2 | 3298 | { |
| 468392fb | 3299 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3300 | bfd_byte *contents = NULL; |
| 699733f6 | 3301 | size_t size; |
| 468392fb AM |
3302 | long plt_count = 0; |
| 3303 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3304 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3305 | arelent *p; | |
| 90e3cdf2 | 3306 | |
| ee67d69a | 3307 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3308 | { |
| ee67d69a | 3309 | free_contents_and_exit: |
| 699733f6 | 3310 | if (contents) |
| ee67d69a | 3311 | free (contents); |
| 7356fed5 | 3312 | count = -1; |
| c9727e01 | 3313 | goto done; |
| 699733f6 | 3314 | } |
| 90e3cdf2 | 3315 | |
| 699733f6 AM |
3316 | size = 0; |
| 3317 | for (i = secsymend; i < opdsymend; ++i) | |
| 3318 | { | |
| 3319 | bfd_vma ent; | |
| 90e3cdf2 | 3320 | |
| 5ef11c02 AM |
3321 | /* Ignore bogus symbols. */ |
| 3322 | if (syms[i]->value > opd->size - 8) | |
| 3323 | continue; | |
| 3324 | ||
| 699733f6 AM |
3325 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3326 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3327 | { | |
| 3328 | ++count; | |
| 3329 | size += sizeof (asymbol); | |
| 3330 | size += strlen (syms[i]->name) + 2; | |
| 3331 | } | |
| 3332 | } | |
| 90e3cdf2 | 3333 | |
| 468392fb | 3334 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3335 | if (dyn_count != 0 |
| 3336 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3337 | { |
| 3338 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3339 | size_t extdynsize; | |
| 3340 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3341 | ||
| 3342 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| 3343 | goto free_contents_and_exit; | |
| 3344 | ||
| 3345 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3346 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3347 | ||
| 3348 | extdyn = dynbuf; | |
| 3349 | extdynend = extdyn + dynamic->size; | |
| 3350 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3351 | { | |
| 3352 | Elf_Internal_Dyn dyn; | |
| 3353 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3354 | ||
| 3355 | if (dyn.d_tag == DT_NULL) | |
| 3356 | break; | |
| 3357 | ||
| 3358 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3359 | { | |
| b9e5796b AM |
3360 | /* The first glink stub starts at offset 32; see |
| 3361 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3362 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3363 | /* The .glink section usually does not survive the final |
| 3364 | link; search for the section (usually .text) where the | |
| 3365 | glink stubs now reside. */ | |
| 3366 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3367 | &glink_vma); | |
| 3368 | break; | |
| 3369 | } | |
| 3370 | } | |
| 3371 | ||
| 3372 | free (dynbuf); | |
| 3373 | } | |
| 3374 | ||
| 3375 | if (glink != NULL) | |
| 3376 | { | |
| 3377 | /* Determine __glink trampoline by reading the relative branch | |
| 3378 | from the first glink stub. */ | |
| 3379 | bfd_byte buf[4]; | |
| b9e5796b AM |
3380 | unsigned int off = 0; |
| 3381 | ||
| 3382 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3383 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3384 | { |
| 3385 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3386 | insn ^= B_DOT; | |
| 3387 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3388 | { |
| 3389 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3390 | break; | |
| 3391 | } | |
| 3392 | off += 4; | |
| 3393 | if (off > 4) | |
| 3394 | break; | |
| 468392fb AM |
3395 | } |
| 3396 | ||
| 3397 | if (resolv_vma) | |
| 3398 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3399 | |
| 066ee829 AM |
3400 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3401 | if (relplt != NULL) | |
| 3402 | { | |
| 3403 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3404 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| 3405 | goto free_contents_and_exit; | |
| 68ffbac6 | 3406 | |
| 066ee829 AM |
3407 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3408 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3409 | |
| 066ee829 AM |
3410 | p = relplt->relocation; |
| 3411 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3412 | { |
| 3413 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3414 | if (p->addend != 0) | |
| 3415 | size += sizeof ("+0x") - 1 + 16; | |
| 3416 | } | |
| 066ee829 | 3417 | } |
| 468392fb AM |
3418 | } |
| 3419 | ||
| 699733f6 AM |
3420 | s = *ret = bfd_malloc (size); |
| 3421 | if (s == NULL) | |
| 7356fed5 | 3422 | goto free_contents_and_exit; |
| 90e3cdf2 | 3423 | |
| 468392fb | 3424 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3425 | |
| 699733f6 | 3426 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3427 | { |
| 699733f6 | 3428 | bfd_vma ent; |
| 90e3cdf2 | 3429 | |
| 5ef11c02 AM |
3430 | if (syms[i]->value > opd->size - 8) |
| 3431 | continue; | |
| 3432 | ||
| 699733f6 AM |
3433 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3434 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3435 | { |
| c9727e01 | 3436 | long lo, hi; |
| 699733f6 | 3437 | size_t len; |
| c9727e01 | 3438 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3439 | |
| 699733f6 AM |
3440 | *s = *syms[i]; |
| 3441 | lo = codesecsym; | |
| 3442 | hi = codesecsymend; | |
| 3443 | while (lo < hi) | |
| 3444 | { | |
| c9727e01 | 3445 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3446 | if (syms[mid]->section->vma < ent) |
| 3447 | lo = mid + 1; | |
| 3448 | else if (syms[mid]->section->vma > ent) | |
| 3449 | hi = mid; | |
| 3450 | else | |
| c9727e01 AM |
3451 | { |
| 3452 | sec = syms[mid]->section; | |
| 3453 | break; | |
| 3454 | } | |
| 699733f6 AM |
3455 | } |
| 3456 | ||
| c9727e01 | 3457 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3458 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3459 | |
| 3460 | for (; sec != NULL; sec = sec->next) | |
| 3461 | { | |
| 3462 | if (sec->vma > ent) | |
| 3463 | break; | |
| 63524580 JK |
3464 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3465 | info file. */ | |
| 3466 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3467 | break; |
| 3468 | if ((sec->flags & SEC_CODE) != 0) | |
| 3469 | s->section = sec; | |
| 3470 | } | |
| 6ba2a415 | 3471 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3472 | s->value = ent - s->section->vma; |
| 3473 | s->name = names; | |
| 3474 | *names++ = '.'; | |
| 3475 | len = strlen (syms[i]->name); | |
| 3476 | memcpy (names, syms[i]->name, len + 1); | |
| 3477 | names += len + 1; | |
| 6f610d07 UW |
3478 | /* Have udata.p point back to the original symbol this |
| 3479 | synthetic symbol was derived from. */ | |
| 3480 | s->udata.p = syms[i]; | |
| 699733f6 | 3481 | s++; |
| 90e3cdf2 | 3482 | } |
| 90e3cdf2 | 3483 | } |
| 699733f6 | 3484 | free (contents); |
| 468392fb AM |
3485 | |
| 3486 | if (glink != NULL && relplt != NULL) | |
| 3487 | { | |
| 3488 | if (resolv_vma) | |
| 3489 | { | |
| 3490 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3491 | memset (s, 0, sizeof *s); |
| 468392fb | 3492 | s->the_bfd = abfd; |
| 6ba2a415 | 3493 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3494 | s->section = glink; |
| 3495 | s->value = resolv_vma - glink->vma; | |
| 3496 | s->name = names; | |
| 3497 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3498 | names += sizeof ("__glink_PLTresolve"); | |
| 3499 | s++; | |
| 3500 | count++; | |
| 3501 | } | |
| 3502 | ||
| 3503 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3504 | stub rather than on the glink branch table entry. The | |
| 3505 | objdump disassembler would then use a sensible symbol | |
| 3506 | name on plt calls. The difficulty in doing so is | |
| 3507 | a) finding the stubs, and, | |
| 3508 | b) matching stubs against plt entries, and, | |
| 3509 | c) there can be multiple stubs for a given plt entry. | |
| 3510 | ||
| 3511 | Solving (a) could be done by code scanning, but older | |
| 3512 | ppc64 binaries used different stubs to current code. | |
| 3513 | (b) is the tricky one since you need to known the toc | |
| 3514 | pointer for at least one function that uses a pic stub to | |
| 3515 | be able to calculate the plt address referenced. | |
| 3516 | (c) means gdb would need to set multiple breakpoints (or | |
| 3517 | find the glink branch itself) when setting breakpoints | |
| 3518 | for pending shared library loads. */ | |
| 3519 | p = relplt->relocation; | |
| 3520 | for (i = 0; i < plt_count; i++, p++) | |
| 3521 | { | |
| 3522 | size_t len; | |
| 3523 | ||
| 3524 | *s = **p->sym_ptr_ptr; | |
| 3525 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3526 | we are defining a symbol, ensure one of them is set. */ | |
| 3527 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3528 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3529 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3530 | s->section = glink; |
| 3531 | s->value = glink_vma - glink->vma; | |
| 3532 | s->name = names; | |
| 3533 | s->udata.p = NULL; | |
| 3534 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3535 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3536 | names += len; | |
| e054468f AM |
3537 | if (p->addend != 0) |
| 3538 | { | |
| 3539 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3540 | names += sizeof ("+0x") - 1; | |
| 3541 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3542 | names += strlen (names); | |
| 3543 | } | |
| 468392fb AM |
3544 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3545 | names += sizeof ("@plt"); | |
| 3546 | s++; | |
| b9e5796b AM |
3547 | if (abi < 2) |
| 3548 | { | |
| 3549 | glink_vma += 8; | |
| 3550 | if (i >= 0x8000) | |
| 3551 | glink_vma += 4; | |
| 3552 | } | |
| 3553 | else | |
| 468392fb AM |
3554 | glink_vma += 4; |
| 3555 | } | |
| 3556 | count += plt_count; | |
| 3557 | } | |
| 90e3cdf2 JJ |
3558 | } |
| 3559 | ||
| c9727e01 | 3560 | done: |
| a7535cf3 | 3561 | free (syms); |
| 90e3cdf2 JJ |
3562 | return count; |
| 3563 | } | |
| 5bd4f169 | 3564 | \f |
| 65f38f15 AM |
3565 | /* The following functions are specific to the ELF linker, while |
| 3566 | functions above are used generally. Those named ppc64_elf_* are | |
| 3567 | called by the main ELF linker code. They appear in this file more | |
| 3568 | or less in the order in which they are called. eg. | |
| 3569 | ppc64_elf_check_relocs is called early in the link process, | |
| 3570 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3571 | called. |
| 3572 | ||
| 3573 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3574 | functions have both a function code symbol and a function descriptor | |
| 3575 | symbol. A call to foo in a relocatable object file looks like: | |
| 3576 | ||
| 3577 | . .text | |
| 3578 | . x: | |
| 3579 | . bl .foo | |
| 3580 | . nop | |
| 3581 | ||
| 3582 | The function definition in another object file might be: | |
| 3583 | ||
| 3584 | . .section .opd | |
| 3585 | . foo: .quad .foo | |
| 3586 | . .quad .TOC.@tocbase | |
| 3587 | . .quad 0 | |
| 3588 | . | |
| 3589 | . .text | |
| 3590 | . .foo: blr | |
| 3591 | ||
| 3592 | When the linker resolves the call during a static link, the branch | |
| 3593 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3594 | If the function definition is in a shared library, things are a little | |
| 3595 | different: The call goes via a plt call stub, the opd information gets | |
| 3596 | copied to the plt, and the linker patches the nop. | |
| 3597 | ||
| 3598 | . x: | |
| 3599 | . bl .foo_stub | |
| 3600 | . ld 2,40(1) | |
| 3601 | . | |
| 3602 | . | |
| 3603 | . .foo_stub: | |
| 71a39c98 AM |
3604 | . std 2,40(1) # in practice, the call stub |
| 3605 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3606 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3607 | . ld 12,0(11) | |
| 3608 | . ld 2,8(11) | |
| 3609 | . mtctr 12 | |
| 3610 | . ld 11,16(11) | |
| e86ce104 AM |
3611 | . bctr |
| 3612 | . | |
| 3613 | . .section .plt | |
| 3614 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3615 | ||
| 3616 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3617 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3618 | copying. | |
| 3619 | ||
| 3620 | What are the difficulties here? Well, firstly, the relocations | |
| 3621 | examined by the linker in check_relocs are against the function code | |
| 3622 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3623 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3624 | to carefully copy dynamic link information from one symbol to the other. | |
| 3625 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3626 | symbol as is normal for most other backends. We need foo dynamic | |
| 3627 | instead, at least for an application final link. However, when | |
| 3628 | creating a shared library containing foo, we need to have both symbols | |
| 3629 | dynamic so that references to .foo are satisfied during the early | |
| 3630 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3631 | definition from some other object, eg. a static library. |
| 3632 | ||
| 3633 | Update: As of August 2004, we support a new convention. Function | |
| 3634 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3635 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3636 | |
| 1d483afe | 3637 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3638 | selects those that must be copied when linking a shared library, |
| 3639 | even when the symbol is local. */ | |
| 65f38f15 | 3640 | |
| 1d483afe AM |
3641 | static int |
| 3642 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3643 | enum elf_ppc64_reloc_type r_type) | |
| 3644 | { | |
| 3645 | switch (r_type) | |
| 3646 | { | |
| 3647 | default: | |
| 3648 | return 1; | |
| 3649 | ||
| 3650 | case R_PPC64_REL32: | |
| 3651 | case R_PPC64_REL64: | |
| 3652 | case R_PPC64_REL30: | |
| 3653 | return 0; | |
| 3654 | ||
| 3655 | case R_PPC64_TPREL16: | |
| 3656 | case R_PPC64_TPREL16_LO: | |
| 3657 | case R_PPC64_TPREL16_HI: | |
| 3658 | case R_PPC64_TPREL16_HA: | |
| 3659 | case R_PPC64_TPREL16_DS: | |
| 3660 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3661 | case R_PPC64_TPREL16_HIGH: |
| 3662 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3663 | case R_PPC64_TPREL16_HIGHER: |
| 3664 | case R_PPC64_TPREL16_HIGHERA: | |
| 3665 | case R_PPC64_TPREL16_HIGHEST: | |
| 3666 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3667 | case R_PPC64_TPREL64: | |
| 3668 | return !info->executable; | |
| 3669 | } | |
| 3670 | } | |
| 65f38f15 | 3671 | |
| f4656909 AM |
3672 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3673 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3674 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3675 | shared lib. With code that gcc generates, it's vital that this be |
| 3676 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3677 | the address of a function descriptor, which resides in the .opd | |
| 3678 | section. gcc uses the descriptor directly rather than going via the | |
| 3679 | GOT as some other ABI's do, which means that initialized function | |
| 3680 | pointers must reference the descriptor. Thus, a function pointer | |
| 3681 | initialized to the address of a function in a shared library will | |
| 3682 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3683 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3684 | presents a problem as a plt entry for that function is also |
| 3685 | initialized from the function descriptor symbol and the copy reloc | |
| 3686 | may not be initialized first. */ | |
| a23b6845 | 3687 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3688 | |
| 721956f4 | 3689 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3690 | string. */ |
| 3691 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3692 | |
| 3693 | /* Linker stubs. | |
| 3694 | ppc_stub_long_branch: | |
| 3695 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3696 | destination, but a 24 bit branch in a stub section will reach. | |
| 3697 | . b dest | |
| 3698 | ||
| 3699 | ppc_stub_plt_branch: | |
| 3700 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3701 | reach its destination. | |
| 71a39c98 AM |
3702 | . addis %r11,%r2,xxx@toc@ha |
| 3703 | . ld %r12,xxx@toc@l(%r11) | |
| 3704 | . mtctr %r12 | |
| 721956f4 AM |
3705 | . bctr |
| 3706 | ||
| 3707 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3708 | Used to call a function in a shared library. If it so happens that |
| 3709 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3710 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3711 | . std %r2,40(%r1) |
| 71a39c98 AM |
3712 | . addis %r11,%r2,xxx@toc@ha |
| 3713 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3714 | . mtctr %r12 | |
| 3715 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3716 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3717 | . bctr |
| ad8e1ba5 AM |
3718 | |
| 3719 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3720 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3721 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3722 | . std %r2,40(%r1) | |
| 3723 | . addis %r2,%r2,off@ha | |
| 3724 | . addi %r2,%r2,off@l | |
| 3725 | . b dest | |
| 3726 | ||
| 3727 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3728 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3729 | . addis %r11,%r2,xxx@toc@ha |
| 3730 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3731 | . addis %r2,%r2,off@ha |
| 3732 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3733 | . mtctr %r12 |
| ad8e1ba5 | 3734 | . bctr |
| ac2df442 AM |
3735 | |
| 3736 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3737 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3738 | */ |
| 3739 | ||
| 3740 | enum ppc_stub_type { | |
| 3741 | ppc_stub_none, | |
| 3742 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3743 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3744 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3745 | ppc_stub_plt_branch_r2off, |
| 794e51c0 AM |
3746 | ppc_stub_plt_call, |
| 3747 | ppc_stub_plt_call_r2save | |
| 721956f4 AM |
3748 | }; |
| 3749 | ||
| 3750 | struct ppc_stub_hash_entry { | |
| 3751 | ||
| 3752 | /* Base hash table entry structure. */ | |
| 3753 | struct bfd_hash_entry root; | |
| 3754 | ||
| ad8e1ba5 AM |
3755 | enum ppc_stub_type stub_type; |
| 3756 | ||
| 721956f4 AM |
3757 | /* The stub section. */ |
| 3758 | asection *stub_sec; | |
| 3759 | ||
| 3760 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3761 | bfd_vma stub_offset; | |
| 3762 | ||
| 3763 | /* Given the symbol's value and its section we can determine its final | |
| 3764 | value when building the stubs (so the stub knows where to jump. */ | |
| 3765 | bfd_vma target_value; | |
| 3766 | asection *target_section; | |
| 3767 | ||
| 721956f4 AM |
3768 | /* The symbol table entry, if any, that this was derived from. */ |
| 3769 | struct ppc_link_hash_entry *h; | |
| e054468f | 3770 | struct plt_entry *plt_ent; |
| 721956f4 AM |
3771 | |
| 3772 | /* Where this stub is being called from, or, in the case of combined | |
| 3773 | stub sections, the first input section in the group. */ | |
| 3774 | asection *id_sec; | |
| 6911b7dc AM |
3775 | |
| 3776 | /* Symbol st_other. */ | |
| 3777 | unsigned char other; | |
| 721956f4 AM |
3778 | }; |
| 3779 | ||
| 3780 | struct ppc_branch_hash_entry { | |
| 3781 | ||
| 3782 | /* Base hash table entry structure. */ | |
| 3783 | struct bfd_hash_entry root; | |
| 3784 | ||
| c456f082 | 3785 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3786 | unsigned int offset; |
| 3787 | ||
| 3788 | /* Generation marker. */ | |
| 3789 | unsigned int iter; | |
| 3790 | }; | |
| 65f38f15 | 3791 | |
| 19e08130 AM |
3792 | /* Used to track dynamic relocations for local symbols. */ |
| 3793 | struct ppc_dyn_relocs | |
| 3794 | { | |
| 3795 | struct ppc_dyn_relocs *next; | |
| 3796 | ||
| 3797 | /* The input section of the reloc. */ | |
| 3798 | asection *sec; | |
| 3799 | ||
| 3800 | /* Total number of relocs copied for the input section. */ | |
| 3801 | unsigned int count : 31; | |
| 3802 | ||
| 3803 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3804 | unsigned int ifunc : 1; | |
| 3805 | }; | |
| 3806 | ||
| 65f38f15 AM |
3807 | struct ppc_link_hash_entry |
| 3808 | { | |
| 3809 | struct elf_link_hash_entry elf; | |
| 3810 | ||
| b3fac117 AM |
3811 | union { |
| 3812 | /* A pointer to the most recently used stub hash entry against this | |
| 3813 | symbol. */ | |
| 3814 | struct ppc_stub_hash_entry *stub_cache; | |
| 3815 | ||
| 3816 | /* A pointer to the next symbol starting with a '.' */ | |
| 3817 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3818 | } u; | |
| 721956f4 | 3819 | |
| 65f38f15 | 3820 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3821 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3822 | |
| 721956f4 | 3823 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3824 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3825 | |
| e86ce104 AM |
3826 | /* Flag function code and descriptor symbols. */ |
| 3827 | unsigned int is_func:1; | |
| 3828 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3829 | unsigned int fake:1; |
| 411e1bfb | 3830 | |
| c5614fa4 AM |
3831 | /* Whether global opd/toc sym has been adjusted or not. |
| 3832 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3833 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3834 | unsigned int adjust_done:1; |
| 3835 | ||
| 99877b66 AM |
3836 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3837 | unsigned int was_undefined:1; | |
| 3838 | ||
| 411e1bfb | 3839 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3840 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3841 | corresponding relocs are encountered during check_relocs. | |
| 3842 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3843 | indicate the corresponding GOT entry type is not needed. | |
| 3844 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3845 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3846 | just for convenience in distinguishing the two cases. */ | |
| 3847 | #define TLS_GD 1 /* GD reloc. */ | |
| 3848 | #define TLS_LD 2 /* LD reloc. */ | |
| 3849 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3850 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3851 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 3852 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 3853 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 3854 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 3855 | unsigned char tls_mask; |
| 65f38f15 AM |
3856 | }; |
| 3857 | ||
| 3858 | /* ppc64 ELF linker hash table. */ | |
| 3859 | ||
| 3860 | struct ppc_link_hash_table | |
| 3861 | { | |
| 3862 | struct elf_link_hash_table elf; | |
| 3863 | ||
| 721956f4 AM |
3864 | /* The stub hash table. */ |
| 3865 | struct bfd_hash_table stub_hash_table; | |
| 3866 | ||
| 3867 | /* Another hash table for plt_branch stubs. */ | |
| 3868 | struct bfd_hash_table branch_hash_table; | |
| 3869 | ||
| 3b421ab3 AM |
3870 | /* Hash table for function prologue tocsave. */ |
| 3871 | htab_t tocsave_htab; | |
| 3872 | ||
| 721956f4 AM |
3873 | /* Linker stub bfd. */ |
| 3874 | bfd *stub_bfd; | |
| 3875 | ||
| 3876 | /* Linker call-backs. */ | |
| 4ce794b7 AM |
3877 | asection * (*add_stub_section) (const char *, asection *); |
| 3878 | void (*layout_sections_again) (void); | |
| 721956f4 AM |
3879 | |
| 3880 | /* Array to keep track of which stub sections have been created, and | |
| 3881 | information on stub grouping. */ | |
| 3882 | struct map_stub { | |
| 3883 | /* This is the section to which stubs in the group will be attached. */ | |
| 3884 | asection *link_sec; | |
| 3885 | /* The stub section. */ | |
| 3886 | asection *stub_sec; | |
| ad8e1ba5 AM |
3887 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
| 3888 | bfd_vma toc_off; | |
| 721956f4 AM |
3889 | } *stub_group; |
| 3890 | ||
| ad8e1ba5 AM |
3891 | /* Temp used when calculating TOC pointers. */ |
| 3892 | bfd_vma toc_curr; | |
| bf102f86 AM |
3893 | bfd *toc_bfd; |
| 3894 | asection *toc_first_sec; | |
| ad8e1ba5 | 3895 | |
| 8f3bab57 AM |
3896 | /* Highest input section id. */ |
| 3897 | int top_id; | |
| 3898 | ||
| 734b6cf9 AM |
3899 | /* Highest output section index. */ |
| 3900 | int top_index; | |
| 3901 | ||
| b3fac117 AM |
3902 | /* Used when adding symbols. */ |
| 3903 | struct ppc_link_hash_entry *dot_syms; | |
| 3904 | ||
| 734b6cf9 AM |
3905 | /* List of input sections for each output section. */ |
| 3906 | asection **input_list; | |
| 721956f4 | 3907 | |
| 65f38f15 | 3908 | /* Short-cuts to get to dynamic linker sections. */ |
| 4ce794b7 | 3909 | asection *got; |
| 4ce794b7 AM |
3910 | asection *plt; |
| 3911 | asection *relplt; | |
| e054468f AM |
3912 | asection *iplt; |
| 3913 | asection *reliplt; | |
| 4ce794b7 AM |
3914 | asection *dynbss; |
| 3915 | asection *relbss; | |
| 3916 | asection *glink; | |
| 82bd7b59 | 3917 | asection *sfpr; |
| 4ce794b7 AM |
3918 | asection *brlt; |
| 3919 | asection *relbrlt; | |
| 58d180e8 | 3920 | asection *glink_eh_frame; |
| ec338859 | 3921 | |
| 8387904d AM |
3922 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 3923 | struct ppc_link_hash_entry *tls_get_addr; | |
| 3924 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 3925 | |
| 927be08e AM |
3926 | /* The size of reliplt used by got entry relocs. */ |
| 3927 | bfd_size_type got_reli_size; | |
| 3928 | ||
| 9b5ecbd0 | 3929 | /* Statistics. */ |
| 794e51c0 | 3930 | unsigned long stub_count[ppc_stub_plt_call_r2save]; |
| 9b5ecbd0 | 3931 | |
| ee75fd95 AM |
3932 | /* Number of stubs against global syms. */ |
| 3933 | unsigned long stub_globals; | |
| 3934 | ||
| 794e51c0 AM |
3935 | /* Alignment of PLT call stubs. */ |
| 3936 | unsigned int plt_stub_align:4; | |
| 3937 | ||
| ee67d69a AM |
3938 | /* Set if we're linking code with function descriptors. */ |
| 3939 | unsigned int opd_abi:1; | |
| 3940 | ||
| 9df0ef5f AM |
3941 | /* Set if PLT call stubs should load r11. */ |
| 3942 | unsigned int plt_static_chain:1; | |
| 3943 | ||
| 794e51c0 AM |
3944 | /* Set if PLT call stubs need a read-read barrier. */ |
| 3945 | unsigned int plt_thread_safe:1; | |
| 3946 | ||
| ad8e1ba5 | 3947 | /* Set if we should emit symbols for stubs. */ |
| 99877b66 | 3948 | unsigned int emit_stub_syms:1; |
| ad8e1ba5 | 3949 | |
| a7f2871e AM |
3950 | /* Set if __tls_get_addr optimization should not be done. */ |
| 3951 | unsigned int no_tls_get_addr_opt:1; | |
| 3952 | ||
| 4c52953f | 3953 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 3954 | unsigned int do_multi_toc:1; |
| 4c52953f | 3955 | unsigned int multi_toc_needed:1; |
| 927be08e | 3956 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 3957 | unsigned int do_toc_opt:1; |
| 4c52953f | 3958 | |
| 5d1634d7 | 3959 | /* Set on error. */ |
| 99877b66 | 3960 | unsigned int stub_error:1; |
| 721956f4 | 3961 | |
| 7d9616d7 | 3962 | /* Temp used by ppc64_elf_process_dot_syms. */ |
| 99877b66 | 3963 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
3964 | |
| 3965 | /* Incremented every time we size stubs. */ | |
| 3966 | unsigned int stub_iteration; | |
| 5d1634d7 | 3967 | |
| 87d72d41 AM |
3968 | /* Small local sym cache. */ |
| 3969 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
3970 | }; |
| 3971 | ||
| 4c52953f AM |
3972 | /* Rename some of the generic section flags to better document how they |
| 3973 | are used here. */ | |
| b0dddeec AM |
3974 | |
| 3975 | /* Nonzero if this section has TLS related relocations. */ | |
| 3976 | #define has_tls_reloc sec_flg0 | |
| 3977 | ||
| 3978 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 3979 | #define has_tls_get_addr_call sec_flg1 | |
| 3980 | ||
| 3981 | /* Nonzero if this section has any toc or got relocs. */ | |
| 3982 | #define has_toc_reloc sec_flg2 | |
| 3983 | ||
| 3984 | /* Nonzero if this section has a call to another section that uses | |
| 3985 | the toc or got. */ | |
| d77c8a4b | 3986 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
3987 | |
| 3988 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 3989 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 3990 | #define call_check_done sec_flg5 |
| 4c52953f | 3991 | |
| 65f38f15 AM |
3992 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 3993 | ||
| 3994 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
3995 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 3996 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 3997 | |
| 721956f4 AM |
3998 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 3999 | ((struct ppc_stub_hash_entry *) \ | |
| 4000 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4001 | ||
| 4002 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4003 | ((struct ppc_branch_hash_entry *) \ | |
| 4004 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4005 | ||
| 4006 | /* Create an entry in the stub hash table. */ | |
| 4007 | ||
| 4008 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4009 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4010 | struct bfd_hash_table *table, | |
| 4011 | const char *string) | |
| 721956f4 AM |
4012 | { |
| 4013 | /* Allocate the structure if it has not already been allocated by a | |
| 4014 | subclass. */ | |
| 4015 | if (entry == NULL) | |
| 4016 | { | |
| 4017 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4018 | if (entry == NULL) | |
| 4019 | return entry; | |
| 4020 | } | |
| 4021 | ||
| 4022 | /* Call the allocation method of the superclass. */ | |
| 4023 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4024 | if (entry != NULL) | |
| 4025 | { | |
| 4026 | struct ppc_stub_hash_entry *eh; | |
| 4027 | ||
| 4028 | /* Initialize the local fields. */ | |
| 4029 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4030 | eh->stub_type = ppc_stub_none; |
| 721956f4 AM |
4031 | eh->stub_sec = NULL; |
| 4032 | eh->stub_offset = 0; | |
| 4033 | eh->target_value = 0; | |
| 4034 | eh->target_section = NULL; | |
| 721956f4 | 4035 | eh->h = NULL; |
| 6911b7dc | 4036 | eh->plt_ent = NULL; |
| 721956f4 | 4037 | eh->id_sec = NULL; |
| 6911b7dc | 4038 | eh->other = 0; |
| 721956f4 AM |
4039 | } |
| 4040 | ||
| 4041 | return entry; | |
| 4042 | } | |
| 4043 | ||
| 4044 | /* Create an entry in the branch hash table. */ | |
| 4045 | ||
| 4046 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4047 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4048 | struct bfd_hash_table *table, | |
| 4049 | const char *string) | |
| 721956f4 AM |
4050 | { |
| 4051 | /* Allocate the structure if it has not already been allocated by a | |
| 4052 | subclass. */ | |
| 4053 | if (entry == NULL) | |
| 4054 | { | |
| 4055 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4056 | if (entry == NULL) | |
| 4057 | return entry; | |
| 4058 | } | |
| 4059 | ||
| 4060 | /* Call the allocation method of the superclass. */ | |
| 4061 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4062 | if (entry != NULL) | |
| 4063 | { | |
| 4064 | struct ppc_branch_hash_entry *eh; | |
| 4065 | ||
| 4066 | /* Initialize the local fields. */ | |
| 4067 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4068 | eh->offset = 0; | |
| 4069 | eh->iter = 0; | |
| 4070 | } | |
| 4071 | ||
| 4072 | return entry; | |
| 4073 | } | |
| 4074 | ||
| 65f38f15 AM |
4075 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4076 | ||
| 4077 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4078 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4079 | struct bfd_hash_table *table, | |
| 4080 | const char *string) | |
| 65f38f15 AM |
4081 | { |
| 4082 | /* Allocate the structure if it has not already been allocated by a | |
| 4083 | subclass. */ | |
| 4084 | if (entry == NULL) | |
| 4085 | { | |
| 4086 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4087 | if (entry == NULL) | |
| 4088 | return entry; | |
| 4089 | } | |
| 4090 | ||
| 4091 | /* Call the allocation method of the superclass. */ | |
| 4092 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4093 | if (entry != NULL) | |
| 4094 | { | |
| 4095 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4096 | ||
| b3fac117 | 4097 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4098 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4099 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4100 | ||
| 4101 | /* When making function calls, old ABI code references function entry | |
| 4102 | points (dot symbols), while new ABI code references the function | |
| 4103 | descriptor symbol. We need to make any combination of reference and | |
| 4104 | definition work together, without breaking archive linking. | |
| 4105 | ||
| 4106 | For a defined function "foo" and an undefined call to "bar": | |
| 4107 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4108 | "bar" too). | |
| 4109 | A new object defines "foo" and references "bar". | |
| 4110 | ||
| 4111 | A new object thus has no problem with its undefined symbols being | |
| 4112 | satisfied by definitions in an old object. On the other hand, the | |
| 4113 | old object won't have ".bar" satisfied by a new object. | |
| 4114 | ||
| 4115 | Keep a list of newly added dot-symbols. */ | |
| 4116 | ||
| 4117 | if (string[0] == '.') | |
| 4118 | { | |
| 4119 | struct ppc_link_hash_table *htab; | |
| 4120 | ||
| 4121 | htab = (struct ppc_link_hash_table *) table; | |
| 4122 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4123 | htab->dot_syms = eh; | |
| 4124 | } | |
| 65f38f15 AM |
4125 | } |
| 4126 | ||
| 4127 | return entry; | |
| 4128 | } | |
| 4129 | ||
| 3b421ab3 AM |
4130 | struct tocsave_entry { |
| 4131 | asection *sec; | |
| 4132 | bfd_vma offset; | |
| 4133 | }; | |
| 4134 | ||
| 4135 | static hashval_t | |
| 4136 | tocsave_htab_hash (const void *p) | |
| 4137 | { | |
| 4138 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4139 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4140 | } | |
| 4141 | ||
| 4142 | static int | |
| 4143 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4144 | { | |
| 4145 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4146 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4147 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4148 | } | |
| 4149 | ||
| 65f38f15 AM |
4150 | /* Create a ppc64 ELF linker hash table. */ |
| 4151 | ||
| 4152 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4153 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4154 | { |
| 4155 | struct ppc_link_hash_table *htab; | |
| 4156 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4157 | ||
| 4ce794b7 | 4158 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4159 | if (htab == NULL) |
| 4160 | return NULL; | |
| 4161 | ||
| 66eb6687 | 4162 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4163 | sizeof (struct ppc_link_hash_entry), |
| 4164 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4165 | { |
| e2d34d7d | 4166 | free (htab); |
| 65f38f15 AM |
4167 | return NULL; |
| 4168 | } | |
| 4169 | ||
| 721956f4 | 4170 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4171 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4172 | sizeof (struct ppc_stub_hash_entry))) | |
| 721956f4 AM |
4173 | return NULL; |
| 4174 | ||
| 4175 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4176 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4177 | sizeof (struct ppc_branch_hash_entry))) | |
| 721956f4 AM |
4178 | return NULL; |
| 4179 | ||
| 3b421ab3 AM |
4180 | htab->tocsave_htab = htab_try_create (1024, |
| 4181 | tocsave_htab_hash, | |
| 4182 | tocsave_htab_eq, | |
| 4183 | NULL); | |
| 4184 | if (htab->tocsave_htab == NULL) | |
| 4185 | return NULL; | |
| 4186 | ||
| 3254fd24 AM |
4187 | /* Initializing two fields of the union is just cosmetic. We really |
| 4188 | only care about glist, but when compiled on a 32-bit host the | |
| 4189 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4190 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4191 | htab->elf.init_got_refcount.refcount = 0; |
| 4192 | htab->elf.init_got_refcount.glist = NULL; | |
| 4193 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4194 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4195 | htab->elf.init_got_offset.offset = 0; | |
| 4196 | htab->elf.init_got_offset.glist = NULL; | |
| 4197 | htab->elf.init_plt_offset.offset = 0; | |
| 4198 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4199 | |
| 65f38f15 AM |
4200 | return &htab->elf.root; |
| 4201 | } | |
| 4202 | ||
| 721956f4 AM |
4203 | /* Free the derived linker hash table. */ |
| 4204 | ||
| 4205 | static void | |
| 4ce794b7 | 4206 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
| 721956f4 | 4207 | { |
| 3b421ab3 | 4208 | struct ppc_link_hash_table *htab = (struct ppc_link_hash_table *) hash; |
| 721956f4 | 4209 | |
| 3b421ab3 AM |
4210 | bfd_hash_table_free (&htab->stub_hash_table); |
| 4211 | bfd_hash_table_free (&htab->branch_hash_table); | |
| 4212 | if (htab->tocsave_htab) | |
| 4213 | htab_delete (htab->tocsave_htab); | |
| 9f7c3e5e | 4214 | _bfd_elf_link_hash_table_free (hash); |
| 721956f4 AM |
4215 | } |
| 4216 | ||
| bfeb4a28 AM |
4217 | /* Create sections for linker generated code. */ |
| 4218 | ||
| 4219 | static bfd_boolean | |
| 4220 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4221 | { | |
| 4222 | struct ppc_link_hash_table *htab; | |
| 4223 | flagword flags; | |
| 4224 | ||
| 4225 | htab = ppc_hash_table (info); | |
| 4226 | ||
| 4227 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4228 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
| 4229 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4230 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4231 | flags); | |
| 4232 | if (htab->sfpr == NULL | |
| 4233 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4234 | return FALSE; | |
| 4235 | ||
| 4236 | /* Create .glink for lazy dynamic linking support. */ | |
| 4237 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4238 | flags); | |
| 4239 | if (htab->glink == NULL | |
| 4240 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4241 | return FALSE; | |
| 4242 | ||
| 4243 | if (!info->no_ld_generated_unwind_info) | |
| 4244 | { | |
| 4245 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4246 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4247 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4248 | ".eh_frame", | |
| 4249 | flags); | |
| 4250 | if (htab->glink_eh_frame == NULL | |
| 4251 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4252 | return FALSE; | |
| 4253 | } | |
| 4254 | ||
| 4255 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 4256 | htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); | |
| 4257 | if (htab->iplt == NULL | |
| 4258 | || ! bfd_set_section_alignment (dynobj, htab->iplt, 3)) | |
| 4259 | return FALSE; | |
| 4260 | ||
| 4261 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4262 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4263 | htab->reliplt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4264 | ".rela.iplt", | |
| 4265 | flags); | |
| 4266 | if (htab->reliplt == NULL | |
| 4267 | || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3)) | |
| 4268 | return FALSE; | |
| 4269 | ||
| 4270 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4271 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4272 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4273 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4274 | flags); | |
| 4275 | if (htab->brlt == NULL | |
| 4276 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4277 | return FALSE; | |
| 4278 | ||
| 4279 | if (!info->shared) | |
| 4280 | return TRUE; | |
| 4281 | ||
| 4282 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4283 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4284 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4285 | ".rela.branch_lt", | |
| 4286 | flags); | |
| 4287 | if (htab->relbrlt == NULL | |
| 4288 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4289 | return FALSE; | |
| 4290 | ||
| 4291 | return TRUE; | |
| 4292 | } | |
| 4293 | ||
| e717da7e AM |
4294 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4295 | ||
| bfeb4a28 | 4296 | bfd_boolean |
| e717da7e AM |
4297 | ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) |
| 4298 | { | |
| 4299 | struct ppc_link_hash_table *htab; | |
| 4300 | ||
| 4301 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; | |
| 4302 | ||
| 4303 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4304 | linker created stub bfd. This ensures that the GOT header is at | |
| 4305 | the start of the output TOC section. */ | |
| 4306 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4307 | if (htab == NULL) |
| bfeb4a28 | 4308 | return FALSE; |
| e717da7e AM |
4309 | htab->stub_bfd = abfd; |
| 4310 | htab->elf.dynobj = abfd; | |
| bfeb4a28 AM |
4311 | |
| 4312 | if (info->relocatable) | |
| 4313 | return TRUE; | |
| 4314 | ||
| 4315 | return create_linkage_sections (htab->elf.dynobj, info); | |
| e717da7e AM |
4316 | } |
| 4317 | ||
| 721956f4 AM |
4318 | /* Build a name for an entry in the stub hash table. */ |
| 4319 | ||
| 4320 | static char * | |
| 4ce794b7 AM |
4321 | ppc_stub_name (const asection *input_section, |
| 4322 | const asection *sym_sec, | |
| 4323 | const struct ppc_link_hash_entry *h, | |
| 4324 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4325 | { |
| 4326 | char *stub_name; | |
| bcaa2f82 | 4327 | ssize_t len; |
| 721956f4 AM |
4328 | |
| 4329 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4330 | offsets from a sym as a branch target? In fact, we could | |
| 4331 | probably assume the addend is always zero. */ | |
| 4332 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4333 | ||
| 4334 | if (h) | |
| 4335 | { | |
| 4336 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4337 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4338 | if (stub_name == NULL) |
| 4339 | return stub_name; | |
| 4340 | ||
| bcaa2f82 AM |
4341 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4342 | input_section->id & 0xffffffff, | |
| 4343 | h->elf.root.root.string, | |
| 4344 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4345 | } |
| 4346 | else | |
| 4347 | { | |
| ad8e1ba5 | 4348 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4349 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4350 | if (stub_name == NULL) |
| 4351 | return stub_name; | |
| 4352 | ||
| bcaa2f82 AM |
4353 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4354 | input_section->id & 0xffffffff, | |
| 4355 | sym_sec->id & 0xffffffff, | |
| 4356 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4357 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4358 | } |
| bcaa2f82 | 4359 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4360 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4361 | return stub_name; |
| 4362 | } | |
| 4363 | ||
| 4364 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4365 | creating the stub name takes a bit of time. */ | |
| 4366 | ||
| 4367 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4368 | ppc_get_stub_entry (const asection *input_section, |
| 4369 | const asection *sym_sec, | |
| 039b3fef | 4370 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4371 | const Elf_Internal_Rela *rel, |
| 4372 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4373 | { |
| 4374 | struct ppc_stub_hash_entry *stub_entry; | |
| 721956f4 AM |
4375 | const asection *id_sec; |
| 4376 | ||
| 4377 | /* If this input section is part of a group of sections sharing one | |
| 4378 | stub section, then use the id of the first section in the group. | |
| 4379 | Stub names need to include a section id, as there may well be | |
| 4380 | more than one stub used to reach say, printf, and we need to | |
| 4381 | distinguish between them. */ | |
| 4382 | id_sec = htab->stub_group[input_section->id].link_sec; | |
| 4383 | ||
| b3fac117 AM |
4384 | if (h != NULL && h->u.stub_cache != NULL |
| 4385 | && h->u.stub_cache->h == h | |
| 4386 | && h->u.stub_cache->id_sec == id_sec) | |
| 721956f4 | 4387 | { |
| b3fac117 | 4388 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4389 | } |
| 4390 | else | |
| 4391 | { | |
| 4392 | char *stub_name; | |
| 4393 | ||
| 4394 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
| 4395 | if (stub_name == NULL) | |
| 4396 | return NULL; | |
| 4397 | ||
| 4398 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4399 | stub_name, FALSE, FALSE); |
| 721956f4 | 4400 | if (h != NULL) |
| b3fac117 | 4401 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4402 | |
| 4403 | free (stub_name); | |
| 4404 | } | |
| 4405 | ||
| 4406 | return stub_entry; | |
| 4407 | } | |
| 4408 | ||
| 4409 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4410 | stub entry are initialised. */ | |
| 4411 | ||
| 4412 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4413 | ppc_add_stub (const char *stub_name, |
| 4414 | asection *section, | |
| 25f53a85 | 4415 | struct bfd_link_info *info) |
| 721956f4 | 4416 | { |
| 25f53a85 | 4417 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 721956f4 AM |
4418 | asection *link_sec; |
| 4419 | asection *stub_sec; | |
| 4420 | struct ppc_stub_hash_entry *stub_entry; | |
| 4421 | ||
| 4422 | link_sec = htab->stub_group[section->id].link_sec; | |
| 4423 | stub_sec = htab->stub_group[section->id].stub_sec; | |
| 4424 | if (stub_sec == NULL) | |
| 4425 | { | |
| 4426 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
| 4427 | if (stub_sec == NULL) | |
| 4428 | { | |
| d4c88bbb | 4429 | size_t namelen; |
| 721956f4 AM |
4430 | bfd_size_type len; |
| 4431 | char *s_name; | |
| 4432 | ||
| d4c88bbb AM |
4433 | namelen = strlen (link_sec->name); |
| 4434 | len = namelen + sizeof (STUB_SUFFIX); | |
| 721956f4 AM |
4435 | s_name = bfd_alloc (htab->stub_bfd, len); |
| 4436 | if (s_name == NULL) | |
| 4437 | return NULL; | |
| 4438 | ||
| d4c88bbb AM |
4439 | memcpy (s_name, link_sec->name, namelen); |
| 4440 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 721956f4 AM |
4441 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
| 4442 | if (stub_sec == NULL) | |
| 4443 | return NULL; | |
| 4444 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
| 4445 | } | |
| 4446 | htab->stub_group[section->id].stub_sec = stub_sec; | |
| 4447 | } | |
| 4448 | ||
| 4449 | /* Enter this entry into the linker stub hash table. */ | |
| 4450 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4451 | TRUE, FALSE); |
| 721956f4 AM |
4452 | if (stub_entry == NULL) |
| 4453 | { | |
| 8de848d8 | 4454 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4455 | section->owner, stub_name); |
| 721956f4 AM |
4456 | return NULL; |
| 4457 | } | |
| 4458 | ||
| 4459 | stub_entry->stub_sec = stub_sec; | |
| 4460 | stub_entry->stub_offset = 0; | |
| 4461 | stub_entry->id_sec = link_sec; | |
| 4462 | return stub_entry; | |
| 4463 | } | |
| 4464 | ||
| e717da7e AM |
4465 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4466 | not already done. */ | |
| 65f38f15 | 4467 | |
| b34976b6 | 4468 | static bfd_boolean |
| e717da7e | 4469 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4470 | { |
| e717da7e AM |
4471 | asection *got, *relgot; |
| 4472 | flagword flags; | |
| 4473 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4474 | |
| 0c8d6e5c | 4475 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4476 | return FALSE; |
| 4dfe6ac6 NC |
4477 | if (htab == NULL) |
| 4478 | return FALSE; | |
| 0ffa91dd | 4479 | |
| 4ce794b7 | 4480 | if (!htab->got) |
| e717da7e AM |
4481 | { |
| 4482 | if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4483 | return FALSE; | |
| 4484 | ||
| 3d4d4302 | 4485 | htab->got = bfd_get_linker_section (htab->elf.dynobj, ".got"); |
| e717da7e AM |
4486 | if (!htab->got) |
| 4487 | abort (); | |
| 4488 | } | |
| 4489 | ||
| 4490 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4491 | | SEC_LINKER_CREATED); | |
| 4492 | ||
| c456f082 | 4493 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4494 | if (!got |
| e717da7e AM |
4495 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4496 | return FALSE; | |
| 65f38f15 | 4497 | |
| c456f082 AM |
4498 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4499 | flags | SEC_READONLY); | |
| e717da7e | 4500 | if (!relgot |
| e717da7e | 4501 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4502 | return FALSE; |
| e717da7e AM |
4503 | |
| 4504 | ppc64_elf_tdata (abfd)->got = got; | |
| 4505 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4506 | return TRUE; |
| 65f38f15 | 4507 | } |
| 5bd4f169 | 4508 | |
| 82bd7b59 | 4509 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4510 | |
| b34976b6 | 4511 | static bfd_boolean |
| 4ce794b7 | 4512 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4513 | { |
| 65f38f15 | 4514 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4515 | |
| 65f38f15 | 4516 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4517 | return FALSE; |
| 65f38f15 | 4518 | |
| e717da7e | 4519 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4520 | if (htab == NULL) |
| 4521 | return FALSE; | |
| 4522 | ||
| e717da7e | 4523 | if (!htab->got) |
| 3d4d4302 AM |
4524 | htab->got = bfd_get_linker_section (dynobj, ".got"); |
| 4525 | htab->plt = bfd_get_linker_section (dynobj, ".plt"); | |
| 4526 | htab->relplt = bfd_get_linker_section (dynobj, ".rela.plt"); | |
| 4527 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); | |
| 65f38f15 | 4528 | if (!info->shared) |
| 3d4d4302 | 4529 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4530 | |
| e717da7e | 4531 | if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss |
| 4ce794b7 | 4532 | || (!info->shared && !htab->relbss)) |
| 65f38f15 AM |
4533 | abort (); |
| 4534 | ||
| b34976b6 | 4535 | return TRUE; |
| 5bd4f169 AM |
4536 | } |
| 4537 | ||
| b31867b6 AM |
4538 | /* Follow indirect and warning symbol links. */ |
| 4539 | ||
| 4540 | static inline struct bfd_link_hash_entry * | |
| 4541 | follow_link (struct bfd_link_hash_entry *h) | |
| 4542 | { | |
| 4543 | while (h->type == bfd_link_hash_indirect | |
| 4544 | || h->type == bfd_link_hash_warning) | |
| 4545 | h = h->u.i.link; | |
| 4546 | return h; | |
| 4547 | } | |
| 4548 | ||
| 4549 | static inline struct elf_link_hash_entry * | |
| 4550 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4551 | { | |
| 4552 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4553 | } | |
| 4554 | ||
| 4555 | static inline struct ppc_link_hash_entry * | |
| 4556 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4557 | { | |
| 4558 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4559 | } | |
| 4560 | ||
| 40d16e0b AM |
4561 | /* Merge PLT info on FROM with that on TO. */ |
| 4562 | ||
| 4563 | static void | |
| 4564 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4565 | struct ppc_link_hash_entry *to) | |
| 4566 | { | |
| 4567 | if (from->elf.plt.plist != NULL) | |
| 4568 | { | |
| 4569 | if (to->elf.plt.plist != NULL) | |
| 4570 | { | |
| 4571 | struct plt_entry **entp; | |
| 4572 | struct plt_entry *ent; | |
| 4573 | ||
| 4574 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4575 | { | |
| 4576 | struct plt_entry *dent; | |
| 4577 | ||
| 4578 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4579 | if (dent->addend == ent->addend) | |
| 4580 | { | |
| 4581 | dent->plt.refcount += ent->plt.refcount; | |
| 4582 | *entp = ent->next; | |
| 4583 | break; | |
| 4584 | } | |
| 4585 | if (dent == NULL) | |
| 4586 | entp = &ent->next; | |
| 4587 | } | |
| 4588 | *entp = to->elf.plt.plist; | |
| 4589 | } | |
| 4590 | ||
| 4591 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4592 | from->elf.plt.plist = NULL; | |
| 4593 | } | |
| 4594 | } | |
| 4595 | ||
| 65f38f15 AM |
4596 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4597 | ||
| 4598 | static void | |
| fcfa13d2 AM |
4599 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4600 | struct elf_link_hash_entry *dir, | |
| 4601 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4602 | { |
| 4603 | struct ppc_link_hash_entry *edir, *eind; | |
| 4604 | ||
| 4605 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4606 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4607 | ||
| c79d6685 AM |
4608 | edir->is_func |= eind->is_func; |
| 4609 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4610 | edir->tls_mask |= eind->tls_mask; | |
| 4611 | if (eind->oh != NULL) | |
| 4612 | edir->oh = ppc_follow_link (eind->oh); | |
| 4613 | ||
| 4614 | /* If called to transfer flags for a weakdef during processing | |
| 4615 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4616 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4617 | if (!(ELIMINATE_COPY_RELOCS | |
| 4618 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4619 | && edir->elf.dynamic_adjusted)) | |
| 4620 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4621 | ||
| 4622 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4623 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4624 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4625 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4626 | ||
| 411e1bfb | 4627 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4628 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4629 | { |
| bbd7ec4a AM |
4630 | if (edir->dyn_relocs != NULL) |
| 4631 | { | |
| 6061a67d AM |
4632 | struct elf_dyn_relocs **pp; |
| 4633 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4634 | |
| fcfa13d2 | 4635 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4636 | list. Merge any entries against the same section. */ |
| 4637 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4638 | { | |
| 6061a67d | 4639 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4640 | |
| 4641 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4642 | if (q->sec == p->sec) | |
| 4643 | { | |
| 4644 | q->pc_count += p->pc_count; | |
| 4645 | q->count += p->count; | |
| 4646 | *pp = p->next; | |
| 4647 | break; | |
| 4648 | } | |
| 4649 | if (q == NULL) | |
| 4650 | pp = &p->next; | |
| 4651 | } | |
| 4652 | *pp = edir->dyn_relocs; | |
| 4653 | } | |
| 4654 | ||
| 65f38f15 AM |
4655 | edir->dyn_relocs = eind->dyn_relocs; |
| 4656 | eind->dyn_relocs = NULL; | |
| 4657 | } | |
| 65f38f15 | 4658 | |
| 68ba6d40 AM |
4659 | /* If we were called to copy over info for a weak sym, that's all. |
| 4660 | You might think dyn_relocs need not be copied over; After all, | |
| 4661 | both syms will be dynamic or both non-dynamic so we're just | |
| 68ffbac6 | 4662 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
| 68ba6d40 AM |
4663 | code in ppc64_elf_adjust_dynamic_symbol needs to check for |
| 4664 | dyn_relocs in read-only sections, and it does so on what is the | |
| 4665 | DIR sym here. */ | |
| 4666 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4667 | return; | |
| 4668 | ||
| 81848ca0 AM |
4669 | /* Copy over got entries that we may have already seen to the |
| 4670 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4671 | if (eind->elf.got.glist != NULL) |
| 4672 | { | |
| 4673 | if (edir->elf.got.glist != NULL) | |
| 4674 | { | |
| 4675 | struct got_entry **entp; | |
| 4676 | struct got_entry *ent; | |
| 4677 | ||
| 4678 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4679 | { | |
| 4680 | struct got_entry *dent; | |
| 4681 | ||
| 4682 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4683 | if (dent->addend == ent->addend | |
| e717da7e | 4684 | && dent->owner == ent->owner |
| 411e1bfb AM |
4685 | && dent->tls_type == ent->tls_type) |
| 4686 | { | |
| 4687 | dent->got.refcount += ent->got.refcount; | |
| 4688 | *entp = ent->next; | |
| 4689 | break; | |
| 4690 | } | |
| 4691 | if (dent == NULL) | |
| 4692 | entp = &ent->next; | |
| 4693 | } | |
| 4694 | *entp = edir->elf.got.glist; | |
| 4695 | } | |
| 4696 | ||
| 4697 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4698 | eind->elf.got.glist = NULL; | |
| 4699 | } | |
| 4700 | ||
| 4701 | /* And plt entries. */ | |
| 40d16e0b | 4702 | move_plt_plist (eind, edir); |
| 411e1bfb | 4703 | |
| fcfa13d2 | 4704 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4705 | { |
| fcfa13d2 AM |
4706 | if (edir->elf.dynindx != -1) |
| 4707 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4708 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4709 | edir->elf.dynindx = eind->elf.dynindx; |
| 4710 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4711 | eind->elf.dynindx = -1; | |
| 4712 | eind->elf.dynstr_index = 0; | |
| 4713 | } | |
| 411e1bfb AM |
4714 | } |
| 4715 | ||
| 8387904d AM |
4716 | /* Find the function descriptor hash entry from the given function code |
| 4717 | hash entry FH. Link the entries via their OH fields. */ | |
| 4718 | ||
| 4719 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4720 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4721 | { |
| 4722 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4723 | ||
| 4724 | if (fdh == NULL) | |
| 4725 | { | |
| 4726 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4727 | ||
| 4728 | fdh = (struct ppc_link_hash_entry *) | |
| 4729 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4730 | if (fdh == NULL) |
| 4731 | return fdh; | |
| 4732 | ||
| 4733 | fdh->is_func_descriptor = 1; | |
| 4734 | fdh->oh = fh; | |
| 4735 | fh->is_func = 1; | |
| 4736 | fh->oh = fdh; | |
| 8387904d AM |
4737 | } |
| 4738 | ||
| b31867b6 | 4739 | return ppc_follow_link (fdh); |
| 8387904d AM |
4740 | } |
| 4741 | ||
| bb700d78 AM |
4742 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4743 | ||
| 4744 | static struct ppc_link_hash_entry * | |
| 4745 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4746 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4747 | { |
| 4748 | bfd *abfd; | |
| 4749 | asymbol *newsym; | |
| 4750 | struct bfd_link_hash_entry *bh; | |
| 4751 | struct ppc_link_hash_entry *fdh; | |
| 4752 | ||
| 4753 | abfd = fh->elf.root.u.undef.abfd; | |
| 4754 | newsym = bfd_make_empty_symbol (abfd); | |
| 4755 | newsym->name = fh->elf.root.root.string + 1; | |
| 4756 | newsym->section = bfd_und_section_ptr; | |
| 4757 | newsym->value = 0; | |
| 908b32fc | 4758 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4759 | |
| 4760 | bh = NULL; | |
| 4761 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4762 | newsym->flags, newsym->section, | |
| 4763 | newsym->value, NULL, FALSE, FALSE, | |
| 4764 | &bh)) | |
| 4765 | return NULL; | |
| 4766 | ||
| 4767 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4768 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4769 | fdh->fake = 1; |
| 4770 | fdh->is_func_descriptor = 1; | |
| 4771 | fdh->oh = fh; | |
| 4772 | fh->is_func = 1; | |
| 4773 | fh->oh = fdh; | |
| bb700d78 AM |
4774 | return fdh; |
| 4775 | } | |
| 4776 | ||
| 8387904d AM |
4777 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4778 | function type. */ | |
| 555cd476 AM |
4779 | |
| 4780 | static bfd_boolean | |
| c16153ae | 4781 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4782 | struct bfd_link_info *info, |
| 555cd476 | 4783 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4784 | const char **name, |
| 555cd476 AM |
4785 | flagword *flags ATTRIBUTE_UNUSED, |
| 4786 | asection **sec, | |
| 4787 | bfd_vma *value ATTRIBUTE_UNUSED) | |
| 4788 | { | |
| f64b2e8d NC |
4789 | if ((ibfd->flags & DYNAMIC) == 0 |
| 4790 | && ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE) | |
| 4791 | elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; | |
| 4792 | ||
| e054468f | 4793 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
| c16153ae L |
4794 | { |
| 4795 | if ((ibfd->flags & DYNAMIC) == 0) | |
| f64b2e8d | 4796 | elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; |
| c16153ae | 4797 | } |
| e054468f AM |
4798 | else if (ELF_ST_TYPE (isym->st_info) == STT_FUNC) |
| 4799 | ; | |
| 4800 | else if (*sec != NULL | |
| 70cc837d | 4801 | && strcmp ((*sec)->name, ".opd") == 0) |
| 555cd476 | 4802 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); |
| 433817dd | 4803 | |
| 6911b7dc AM |
4804 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4805 | { | |
| 4806 | if (abiversion (ibfd) == 0) | |
| 4807 | set_abiversion (ibfd, 2); | |
| 4808 | else if (abiversion (ibfd) == 1) | |
| 4809 | { | |
| 4810 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4811 | " for ABI version 1\n"), name); | |
| 4812 | bfd_set_error (bfd_error_bad_value); | |
| 4813 | return FALSE; | |
| 4814 | } | |
| 4815 | } | |
| 4816 | ||
| 555cd476 AM |
4817 | return TRUE; |
| 4818 | } | |
| 4819 | ||
| 6911b7dc AM |
4820 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4821 | ||
| 4822 | static void | |
| 4823 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4824 | const Elf_Internal_Sym *isym, | |
| 4825 | bfd_boolean definition, | |
| 4826 | bfd_boolean dynamic) | |
| 4827 | { | |
| 4828 | if (definition && !dynamic) | |
| 4829 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4830 | | ELF_ST_VISIBILITY (h->other)); | |
| 4831 | } | |
| 4832 | ||
| 8387904d | 4833 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
4834 | inclusion of a new ABI object archive that defines "bar". |
| 4835 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 4836 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
4837 | |
| 4838 | static struct elf_link_hash_entry * | |
| 4839 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 4840 | struct bfd_link_info *info, | |
| 4841 | const char *name) | |
| 4842 | { | |
| 4843 | struct elf_link_hash_entry *h; | |
| 4844 | char *dot_name; | |
| 4845 | size_t len; | |
| 4846 | ||
| 4847 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
4848 | if (h != NULL |
| 4849 | /* Don't return this sym if it is a fake function descriptor | |
| 4850 | created by add_symbol_adjust. */ | |
| 4851 | && !(h->root.type == bfd_link_hash_undefweak | |
| 4852 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
4853 | return h; |
| 4854 | ||
| 4855 | if (name[0] == '.') | |
| 4856 | return h; | |
| 4857 | ||
| 4858 | len = strlen (name); | |
| 4859 | dot_name = bfd_alloc (abfd, len + 2); | |
| 4860 | if (dot_name == NULL) | |
| 4861 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 4862 | dot_name[0] = '.'; | |
| 4863 | memcpy (dot_name + 1, name, len + 1); | |
| 4864 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 4865 | bfd_release (abfd, dot_name); | |
| 4866 | return h; | |
| 4867 | } | |
| 4868 | ||
| 4869 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
4870 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 4871 | are made weak. This stops later archive searches from including an | |
| 4872 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
4873 | prevents the linker complaining about undefined symbols. |
| 4874 | We also check and correct mismatched symbol visibility here. The | |
| 4875 | most restrictive visibility of the function descriptor and the | |
| 4876 | function entry symbol is used. */ | |
| 8387904d AM |
4877 | |
| 4878 | static bfd_boolean | |
| b3fac117 | 4879 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 4880 | { |
| 8387904d AM |
4881 | struct ppc_link_hash_table *htab; |
| 4882 | struct ppc_link_hash_entry *fdh; | |
| 4883 | ||
| b3fac117 | 4884 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 8387904d AM |
4885 | return TRUE; |
| 4886 | ||
| b3fac117 AM |
4887 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 4888 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 4889 | |
| b3fac117 AM |
4890 | if (eh->elf.root.root.string[0] != '.') |
| 4891 | abort (); | |
| 8387904d | 4892 | |
| b3fac117 | 4893 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4894 | if (htab == NULL) |
| 4895 | return FALSE; | |
| 4896 | ||
| b31867b6 AM |
4897 | fdh = lookup_fdh (eh, htab); |
| 4898 | if (fdh == NULL) | |
| 4899 | { | |
| 4900 | if (!info->relocatable | |
| 4901 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 4902 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 4903 | && eh->elf.ref_regular) | |
| 4904 | { | |
| 4905 | /* Make an undefweak function descriptor sym, which is enough to | |
| 4906 | pull in an --as-needed shared lib, but won't cause link | |
| 4907 | errors. Archives are handled elsewhere. */ | |
| 4908 | fdh = make_fdh (info, eh); | |
| 4909 | if (fdh == NULL) | |
| 4910 | return FALSE; | |
| 4911 | fdh->elf.ref_regular = 1; | |
| 4912 | } | |
| bb700d78 | 4913 | } |
| b31867b6 | 4914 | else |
| 8387904d | 4915 | { |
| 35b0ce59 AM |
4916 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 4917 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 4918 | if (entry_vis < descr_vis) | |
| 4919 | fdh->elf.other += entry_vis - descr_vis; | |
| 4920 | else if (entry_vis > descr_vis) | |
| 4921 | eh->elf.other += descr_vis - entry_vis; | |
| 4922 | ||
| e87d886e AM |
4923 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 4924 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 4925 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
4926 | { |
| 4927 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 4928 | eh->was_undefined = 1; | |
| 4929 | htab->twiddled_syms = 1; | |
| 4930 | } | |
| 8387904d | 4931 | } |
| 99877b66 | 4932 | |
| 8387904d AM |
4933 | return TRUE; |
| 4934 | } | |
| 4935 | ||
| b3fac117 AM |
4936 | /* Process list of dot-symbols we made in link_hash_newfunc. */ |
| 4937 | ||
| 8387904d | 4938 | static bfd_boolean |
| 7d9616d7 | 4939 | ppc64_elf_process_dot_syms (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 4940 | { |
| 99877b66 | 4941 | struct ppc_link_hash_table *htab; |
| b3fac117 | 4942 | struct ppc_link_hash_entry **p, *eh; |
| 433817dd | 4943 | |
| 0c8d6e5c | 4944 | if (!is_ppc64_elf (info->output_bfd)) |
| 35b0ce59 | 4945 | return TRUE; |
| 4dfe6ac6 NC |
4946 | htab = ppc_hash_table (info); |
| 4947 | if (htab == NULL) | |
| 4948 | return FALSE; | |
| 35b0ce59 | 4949 | |
| 0c8d6e5c | 4950 | if (is_ppc64_elf (ibfd)) |
| b3fac117 AM |
4951 | { |
| 4952 | p = &htab->dot_syms; | |
| 4953 | while ((eh = *p) != NULL) | |
| 4954 | { | |
| 4955 | *p = NULL; | |
| 1c865ab2 AM |
4956 | if (&eh->elf == htab->elf.hgot) |
| 4957 | ; | |
| 4958 | else if (htab->elf.hgot == NULL | |
| 4959 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 4960 | htab->elf.hgot = &eh->elf; | |
| 4961 | else if (!add_symbol_adjust (eh, info)) | |
| b3fac117 AM |
4962 | return FALSE; |
| 4963 | p = &eh->u.next_dot_sym; | |
| 4964 | } | |
| 4965 | } | |
| 4966 | ||
| 4967 | /* Clear the list for non-ppc64 input files. */ | |
| 4968 | p = &htab->dot_syms; | |
| 4969 | while ((eh = *p) != NULL) | |
| 4970 | { | |
| 4971 | *p = NULL; | |
| 4972 | p = &eh->u.next_dot_sym; | |
| 4973 | } | |
| 99877b66 AM |
4974 | |
| 4975 | /* We need to fix the undefs list for any syms we have twiddled to | |
| 4976 | undef_weak. */ | |
| 4977 | if (htab->twiddled_syms) | |
| 4978 | { | |
| 77cfaee6 | 4979 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
4980 | htab->twiddled_syms = 0; |
| 4981 | } | |
| b3fac117 | 4982 | return TRUE; |
| 8387904d AM |
4983 | } |
| 4984 | ||
| 97fed1c9 JJ |
4985 | /* Undo hash table changes when an --as-needed input file is determined |
| 4986 | not to be needed. */ | |
| 4987 | ||
| 4988 | static bfd_boolean | |
| e5034e59 AM |
4989 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 4990 | struct bfd_link_info *info, | |
| 4991 | enum notice_asneeded_action act) | |
| 97fed1c9 | 4992 | { |
| e5034e59 AM |
4993 | if (act == notice_not_needed) |
| 4994 | { | |
| 4995 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 4996 | |
| e5034e59 AM |
4997 | if (htab == NULL) |
| 4998 | return FALSE; | |
| 4dfe6ac6 | 4999 | |
| e5034e59 AM |
5000 | htab->dot_syms = NULL; |
| 5001 | } | |
| 5002 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5003 | } |
| 5004 | ||
| aa374f67 AM |
5005 | /* If --just-symbols against a final linked binary, then assume we need |
| 5006 | toc adjusting stubs when calling functions defined there. */ | |
| 5007 | ||
| 5008 | static void | |
| 5009 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5010 | { | |
| 5011 | if ((sec->flags & SEC_CODE) != 0 | |
| 5012 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5013 | && is_ppc64_elf (sec->owner)) | |
| 5014 | { | |
| 5015 | asection *got = bfd_get_section_by_name (sec->owner, ".got"); | |
| 5016 | if (got != NULL | |
| 5017 | && got->size >= elf_backend_got_header_size | |
| 5018 | && bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| 5019 | sec->has_toc_reloc = 1; | |
| 5020 | } | |
| 5021 | _bfd_elf_link_just_syms (sec, info); | |
| 5022 | } | |
| 5023 | ||
| e054468f | 5024 | static struct plt_entry ** |
| 4ce794b7 AM |
5025 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5026 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5027 | { |
| 5028 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5029 | struct plt_entry **local_plt; |
| f961d9dd | 5030 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5031 | |
| 5032 | if (local_got_ents == NULL) | |
| 5033 | { | |
| 5034 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5035 | ||
| e054468f AM |
5036 | size *= (sizeof (*local_got_ents) |
| 5037 | + sizeof (*local_plt) | |
| 5038 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5039 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5040 | if (local_got_ents == NULL) |
| e054468f | 5041 | return NULL; |
| 411e1bfb AM |
5042 | elf_local_got_ents (abfd) = local_got_ents; |
| 5043 | } | |
| 5044 | ||
| e054468f | 5045 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5046 | { |
| 5047 | struct got_entry *ent; | |
| 5048 | ||
| 5049 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5050 | if (ent->addend == r_addend |
| 5051 | && ent->owner == abfd | |
| 5052 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5053 | break; |
| 5054 | if (ent == NULL) | |
| 5055 | { | |
| 5056 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5057 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5058 | if (ent == NULL) |
| 5059 | return FALSE; | |
| 5060 | ent->next = local_got_ents[r_symndx]; | |
| 5061 | ent->addend = r_addend; | |
| e717da7e | 5062 | ent->owner = abfd; |
| 411e1bfb | 5063 | ent->tls_type = tls_type; |
| 927be08e | 5064 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5065 | ent->got.refcount = 0; |
| 5066 | local_got_ents[r_symndx] = ent; | |
| 5067 | } | |
| 5068 | ent->got.refcount += 1; | |
| 5069 | } | |
| 5070 | ||
| e054468f | 5071 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5072 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5073 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5074 | |
| 5075 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5076 | } |
| 5077 | ||
| 411e1bfb | 5078 | static bfd_boolean |
| e054468f | 5079 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5080 | { |
| 411e1bfb | 5081 | struct plt_entry *ent; |
| 1e2f5b6e | 5082 | |
| e054468f | 5083 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5084 | if (ent->addend == addend) |
| 5085 | break; | |
| 5086 | if (ent == NULL) | |
| 1e2f5b6e | 5087 | { |
| 411e1bfb | 5088 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5089 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5090 | if (ent == NULL) |
| 5091 | return FALSE; | |
| e054468f | 5092 | ent->next = *plist; |
| 411e1bfb AM |
5093 | ent->addend = addend; |
| 5094 | ent->plt.refcount = 0; | |
| e054468f | 5095 | *plist = ent; |
| 1e2f5b6e | 5096 | } |
| 411e1bfb | 5097 | ent->plt.refcount += 1; |
| b34976b6 | 5098 | return TRUE; |
| 1e2f5b6e AM |
5099 | } |
| 5100 | ||
| e054468f AM |
5101 | static bfd_boolean |
| 5102 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5103 | { | |
| 5104 | return (r_type == R_PPC64_REL24 | |
| 5105 | || r_type == R_PPC64_REL14 | |
| 5106 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5107 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5108 | || r_type == R_PPC64_ADDR24 | |
| 5109 | || r_type == R_PPC64_ADDR14 | |
| 5110 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5111 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5112 | } | |
| 5113 | ||
| 5bd4f169 | 5114 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5115 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5116 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5117 | |
| b34976b6 | 5118 | static bfd_boolean |
| 4ce794b7 AM |
5119 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5120 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5121 | { |
| 65f38f15 | 5122 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5123 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5124 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5125 | const Elf_Internal_Rela *rel; |
| 5126 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5127 | asection *sreloc; |
| 1e2f5b6e | 5128 | asection **opd_sym_map; |
| 3a71aa26 | 5129 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5130 | |
| 1049f94e | 5131 | if (info->relocatable) |
| b34976b6 | 5132 | return TRUE; |
| 5bd4f169 | 5133 | |
| 680a3378 AM |
5134 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5135 | In particular, any relocs in such sections should not affect GOT | |
| 5136 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5137 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5138 | relocs, and there's not much point in propagating relocs to shared | |
| 5139 | libs that the dynamic linker won't relocate. */ | |
| 5140 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5141 | return TRUE; | |
| 5142 | ||
| 0c8d6e5c | 5143 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5144 | |
| 65f38f15 | 5145 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5146 | if (htab == NULL) |
| 5147 | return FALSE; | |
| 5148 | ||
| 3a71aa26 AM |
5149 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5150 | FALSE, FALSE, TRUE); | |
| 5151 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5152 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5153 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5154 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5155 | sreloc = NULL; |
| 1e2f5b6e | 5156 | opd_sym_map = NULL; |
| 70cc837d | 5157 | if (strcmp (sec->name, ".opd") == 0) |
| 1e2f5b6e AM |
5158 | { |
| 5159 | /* Garbage collection needs some extra help with .opd sections. | |
| 5160 | We don't want to necessarily keep everything referenced by | |
| 5161 | relocs in .opd, as that would keep all functions. Instead, | |
| 5162 | if we reference an .opd symbol (a function descriptor), we | |
| 5163 | want to keep the function code symbol's section. This is | |
| 5164 | easy for global symbols, but for local syms we need to keep | |
| 74f0fb50 | 5165 | information about the associated function section. */ |
| 1e2f5b6e AM |
5166 | bfd_size_type amt; |
| 5167 | ||
| ee67d69a AM |
5168 | if (abiversion (abfd) == 0) |
| 5169 | set_abiversion (abfd, 1); | |
| 5170 | else if (abiversion (abfd) == 2) | |
| 5171 | { | |
| 5172 | info->callbacks->einfo (_("%P: .opd not allowed in ABI version %d\n"), | |
| 5173 | abiversion (abfd)); | |
| 5174 | bfd_set_error (bfd_error_bad_value); | |
| 5175 | return FALSE; | |
| 5176 | } | |
| 74f0fb50 | 5177 | amt = sec->size * sizeof (*opd_sym_map) / 8; |
| 4ce794b7 | 5178 | opd_sym_map = bfd_zalloc (abfd, amt); |
| 1e2f5b6e | 5179 | if (opd_sym_map == NULL) |
| b34976b6 | 5180 | return FALSE; |
| 74f0fb50 | 5181 | ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map; |
| 7c8fe5c4 AM |
5182 | BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal); |
| 5183 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e | 5184 | } |
| 5bd4f169 AM |
5185 | |
| 5186 | rel_end = relocs + sec->reloc_count; | |
| 5187 | for (rel = relocs; rel < rel_end; rel++) | |
| 5188 | { | |
| 5189 | unsigned long r_symndx; | |
| 5190 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5191 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5192 | int tls_type; |
| 7c8fe5c4 | 5193 | struct _ppc64_elf_section_data *ppc64_sec; |
| e054468f | 5194 | struct plt_entry **ifunc; |
| 5bd4f169 AM |
5195 | |
| 5196 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5197 | if (r_symndx < symtab_hdr->sh_info) | |
| 5198 | h = NULL; | |
| 5199 | else | |
| 973a3492 L |
5200 | { |
| 5201 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5202 | h = elf_follow_link (h); |
| 81fbe831 AM |
5203 | |
| 5204 | /* PR15323, ref flags aren't set for references in the same | |
| 5205 | object. */ | |
| 5206 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5207 | |
| 5208 | if (h == htab->elf.hgot) | |
| 5209 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5210 | } |
| 5bd4f169 | 5211 | |
| 727fc41e | 5212 | tls_type = 0; |
| e054468f | 5213 | ifunc = NULL; |
| 25f23106 AM |
5214 | if (h != NULL) |
| 5215 | { | |
| 5216 | if (h->type == STT_GNU_IFUNC) | |
| 5217 | { | |
| 5218 | h->needs_plt = 1; | |
| 5219 | ifunc = &h->plt.plist; | |
| 5220 | } | |
| 5221 | } | |
| 5222 | else | |
| 5223 | { | |
| 5224 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5225 | abfd, r_symndx); | |
| 5226 | if (isym == NULL) | |
| 5227 | return FALSE; | |
| 5228 | ||
| 5229 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5230 | { | |
| 5231 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5232 | rel->r_addend, PLT_IFUNC); | |
| 5233 | if (ifunc == NULL) | |
| 5234 | return FALSE; | |
| 5235 | } | |
| 5236 | } | |
| 4ce794b7 | 5237 | r_type = ELF64_R_TYPE (rel->r_info); |
| e054468f AM |
5238 | if (is_branch_reloc (r_type)) |
| 5239 | { | |
| 5240 | if (h != NULL && (h == tga || h == dottga)) | |
| 5241 | { | |
| 5242 | if (rel != relocs | |
| 5243 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5244 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5245 | /* We have a new-style __tls_get_addr call with a marker | |
| 5246 | reloc. */ | |
| 5247 | ; | |
| 5248 | else | |
| 5249 | /* Mark this section as having an old-style call. */ | |
| 5250 | sec->has_tls_get_addr_call = 1; | |
| 5251 | } | |
| 727fc41e | 5252 | |
| e054468f | 5253 | /* STT_GNU_IFUNC symbols must have a PLT entry. */ |
| e054468f AM |
5254 | if (ifunc != NULL |
| 5255 | && !update_plt_info (abfd, ifunc, rel->r_addend)) | |
| 5256 | return FALSE; | |
| 5257 | } | |
| 727fc41e | 5258 | |
| a33d1f77 | 5259 | switch (r_type) |
| 5bd4f169 | 5260 | { |
| 727fc41e AM |
5261 | case R_PPC64_TLSGD: |
| 5262 | case R_PPC64_TLSLD: | |
| 5263 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5264 | its parameter symbol. */ | |
| 5265 | break; | |
| 5266 | ||
| 411e1bfb AM |
5267 | case R_PPC64_GOT_TLSLD16: |
| 5268 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5269 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5270 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5271 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5272 | goto dogottls; |
| 5273 | ||
| 5274 | case R_PPC64_GOT_TLSGD16: | |
| 5275 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5276 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5277 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5278 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5279 | goto dogottls; |
| 5280 | ||
| 5281 | case R_PPC64_GOT_TPREL16_DS: | |
| 5282 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5283 | case R_PPC64_GOT_TPREL16_HI: | |
| 5284 | case R_PPC64_GOT_TPREL16_HA: | |
| 1d483afe | 5285 | if (!info->executable) |
| 411e1bfb AM |
5286 | info->flags |= DF_STATIC_TLS; |
| 5287 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5288 | goto dogottls; | |
| 5289 | ||
| 5290 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5291 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5292 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5293 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5294 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5295 | dogottls: | |
| 5296 | sec->has_tls_reloc = 1; | |
| 5297 | /* Fall thru */ | |
| 5298 | ||
| 5bd4f169 | 5299 | case R_PPC64_GOT16: |
| 5bd4f169 | 5300 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5301 | case R_PPC64_GOT16_HA: |
| 5302 | case R_PPC64_GOT16_HI: | |
| 5303 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5304 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5305 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5306 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5307 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5308 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5309 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5310 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5311 | || r_type == R_PPC64_GOT16 | |
| 5312 | || r_type == R_PPC64_GOT16_DS) | |
| 5313 | { | |
| 5314 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5315 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5316 | } |
| 5317 | ||
| e717da7e AM |
5318 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5319 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5320 | return FALSE; |
| 5bd4f169 AM |
5321 | |
| 5322 | if (h != NULL) | |
| 5323 | { | |
| 411e1bfb AM |
5324 | struct ppc_link_hash_entry *eh; |
| 5325 | struct got_entry *ent; | |
| 65f38f15 | 5326 | |
| 411e1bfb AM |
5327 | eh = (struct ppc_link_hash_entry *) h; |
| 5328 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5329 | if (ent->addend == rel->r_addend | |
| e717da7e | 5330 | && ent->owner == abfd |
| 411e1bfb AM |
5331 | && ent->tls_type == tls_type) |
| 5332 | break; | |
| 5333 | if (ent == NULL) | |
| 5bd4f169 | 5334 | { |
| 411e1bfb | 5335 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5336 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5337 | if (ent == NULL) |
| b34976b6 | 5338 | return FALSE; |
| 411e1bfb AM |
5339 | ent->next = eh->elf.got.glist; |
| 5340 | ent->addend = rel->r_addend; | |
| e717da7e | 5341 | ent->owner = abfd; |
| 411e1bfb | 5342 | ent->tls_type = tls_type; |
| 927be08e | 5343 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5344 | ent->got.refcount = 0; |
| 5345 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5346 | } |
| 411e1bfb | 5347 | ent->got.refcount += 1; |
| e7b938ca | 5348 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5349 | } |
| 411e1bfb AM |
5350 | else |
| 5351 | /* This is a global offset table entry for a local symbol. */ | |
| 5352 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5353 | rel->r_addend, tls_type)) | |
| 5354 | return FALSE; | |
| 5bd4f169 AM |
5355 | break; |
| 5356 | ||
| 5bd4f169 | 5357 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5358 | case R_PPC64_PLT16_HI: |
| 5359 | case R_PPC64_PLT16_LO: | |
| 5360 | case R_PPC64_PLT32: | |
| 5361 | case R_PPC64_PLT64: | |
| 5bd4f169 | 5362 | /* This symbol requires a procedure linkage table entry. We |
| 3fad3c7c AM |
5363 | actually build the entry in adjust_dynamic_symbol, |
| 5364 | because this might be a case of linking PIC code without | |
| 5365 | linking in any dynamic objects, in which case we don't | |
| 5366 | need to generate a procedure linkage table after all. */ | |
| 5bd4f169 AM |
5367 | if (h == NULL) |
| 5368 | { | |
| 5369 | /* It does not make sense to have a procedure linkage | |
| 3fad3c7c | 5370 | table entry for a local symbol. */ |
| 5bd4f169 | 5371 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 5372 | return FALSE; |
| 5bd4f169 | 5373 | } |
| 411e1bfb | 5374 | else |
| e054468f AM |
5375 | { |
| 5376 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5377 | return FALSE; | |
| 5378 | h->needs_plt = 1; | |
| 5379 | if (h->root.root.string[0] == '.' | |
| 5380 | && h->root.root.string[1] != '\0') | |
| 5381 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5382 | } | |
| 5bd4f169 AM |
5383 | break; |
| 5384 | ||
| 5385 | /* The following relocations don't need to propagate the | |
| 5386 | relocation if linking a shared object since they are | |
| 5387 | section relative. */ | |
| 5388 | case R_PPC64_SECTOFF: | |
| 5389 | case R_PPC64_SECTOFF_LO: | |
| 5390 | case R_PPC64_SECTOFF_HI: | |
| 5391 | case R_PPC64_SECTOFF_HA: | |
| 5392 | case R_PPC64_SECTOFF_DS: | |
| 5393 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5394 | case R_PPC64_DTPREL16: |
| 5395 | case R_PPC64_DTPREL16_LO: | |
| 5396 | case R_PPC64_DTPREL16_HI: | |
| 5397 | case R_PPC64_DTPREL16_HA: | |
| 5398 | case R_PPC64_DTPREL16_DS: | |
| 5399 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5400 | case R_PPC64_DTPREL16_HIGH: |
| 5401 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5402 | case R_PPC64_DTPREL16_HIGHER: |
| 5403 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5404 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5405 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5406 | break; |
| 5407 | ||
| ad8e1ba5 | 5408 | /* Nor do these. */ |
| 25f23106 AM |
5409 | case R_PPC64_REL16: |
| 5410 | case R_PPC64_REL16_LO: | |
| 5411 | case R_PPC64_REL16_HI: | |
| 5412 | case R_PPC64_REL16_HA: | |
| 5413 | break; | |
| 5414 | ||
| ad8e1ba5 | 5415 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5416 | case R_PPC64_TOC16_DS: |
| 5417 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5418 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| ad8e1ba5 AM |
5419 | case R_PPC64_TOC16_LO: |
| 5420 | case R_PPC64_TOC16_HI: | |
| 5421 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5422 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5423 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5424 | break; |
| 5425 | ||
| 5bd4f169 AM |
5426 | /* This relocation describes the C++ object vtable hierarchy. |
| 5427 | Reconstruct it for later use during GC. */ | |
| 5428 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5429 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5430 | return FALSE; |
| 5bd4f169 AM |
5431 | break; |
| 5432 | ||
| 5433 | /* This relocation describes which C++ vtable entries are actually | |
| 5434 | used. Record for later use during GC. */ | |
| 5435 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5436 | BFD_ASSERT (h != NULL); |
| 5437 | if (h != NULL | |
| 5438 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5439 | return FALSE; |
| 5bd4f169 AM |
5440 | break; |
| 5441 | ||
| 721956f4 AM |
5442 | case R_PPC64_REL14: |
| 5443 | case R_PPC64_REL14_BRTAKEN: | |
| 5444 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5445 | { |
| 5446 | asection *dest = NULL; | |
| 5447 | ||
| 5448 | /* Heuristic: If jumping outside our section, chances are | |
| 5449 | we are going to need a stub. */ | |
| 5450 | if (h != NULL) | |
| 5451 | { | |
| 5452 | /* If the sym is weak it may be overridden later, so | |
| 5453 | don't assume we know where a weak sym lives. */ | |
| 5454 | if (h->root.type == bfd_link_hash_defined) | |
| 5455 | dest = h->root.u.def.section; | |
| 5456 | } | |
| 5457 | else | |
| 87d72d41 AM |
5458 | { |
| 5459 | Elf_Internal_Sym *isym; | |
| 5460 | ||
| 5461 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5462 | abfd, r_symndx); | |
| 5463 | if (isym == NULL) | |
| 5464 | return FALSE; | |
| 5465 | ||
| 5466 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5467 | } | |
| 5468 | ||
| 220c76dd | 5469 | if (dest != sec) |
| 7c8fe5c4 | 5470 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5471 | } |
| 721956f4 AM |
5472 | /* Fall through. */ |
| 5473 | ||
| 5d1634d7 | 5474 | case R_PPC64_REL24: |
| e054468f | 5475 | if (h != NULL && ifunc == NULL) |
| 5d1634d7 AM |
5476 | { |
| 5477 | /* We may need a .plt entry if the function this reloc | |
| 5478 | refers to is in a shared lib. */ | |
| e054468f | 5479 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) |
| 411e1bfb | 5480 | return FALSE; |
| e054468f AM |
5481 | h->needs_plt = 1; |
| 5482 | if (h->root.root.string[0] == '.' | |
| 5483 | && h->root.root.string[1] != '\0') | |
| 5484 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 3a71aa26 | 5485 | if (h == tga || h == dottga) |
| 411e1bfb | 5486 | sec->has_tls_reloc = 1; |
| 411e1bfb AM |
5487 | } |
| 5488 | break; | |
| 5489 | ||
| 5490 | case R_PPC64_TPREL64: | |
| 5491 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 1d483afe | 5492 | if (!info->executable) |
| 411e1bfb AM |
5493 | info->flags |= DF_STATIC_TLS; |
| 5494 | goto dotlstoc; | |
| 5495 | ||
| 5496 | case R_PPC64_DTPMOD64: | |
| 5497 | if (rel + 1 < rel_end | |
| 5498 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5499 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5500 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5501 | else |
| 951fd09b | 5502 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5503 | goto dotlstoc; |
| 5504 | ||
| 5505 | case R_PPC64_DTPREL64: | |
| 5506 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5507 | if (rel != relocs | |
| 5508 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5509 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5510 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5511 | Don't mark with TLS_DTPREL. */ | |
| 5512 | goto dodyn; | |
| 5513 | ||
| 5514 | dotlstoc: | |
| 5515 | sec->has_tls_reloc = 1; | |
| 5516 | if (h != NULL) | |
| 5517 | { | |
| 5518 | struct ppc_link_hash_entry *eh; | |
| 5519 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5520 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5521 | } |
| 5522 | else | |
| 5523 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5524 | rel->r_addend, tls_type)) | |
| 5525 | return FALSE; | |
| 5526 | ||
| 7c8fe5c4 AM |
5527 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5528 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5529 | { |
| 3a71aa26 AM |
5530 | bfd_size_type amt; |
| 5531 | ||
| e7b938ca | 5532 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5533 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5534 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5535 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5536 | return FALSE; | |
| 5537 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5538 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5539 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5540 | return FALSE; |
| 7c8fe5c4 AM |
5541 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5542 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5543 | } |
| 5544 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5545 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5546 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5547 | |
| 5548 | /* Mark the second slot of a GD or LD entry. | |
| 5549 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5550 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5551 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5552 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5553 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5554 | goto dodyn; |
| 5555 | ||
| 5556 | case R_PPC64_TPREL16: | |
| 5557 | case R_PPC64_TPREL16_LO: | |
| 5558 | case R_PPC64_TPREL16_HI: | |
| 5559 | case R_PPC64_TPREL16_HA: | |
| 5560 | case R_PPC64_TPREL16_DS: | |
| 5561 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5562 | case R_PPC64_TPREL16_HIGH: |
| 5563 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5564 | case R_PPC64_TPREL16_HIGHER: |
| 5565 | case R_PPC64_TPREL16_HIGHERA: | |
| 5566 | case R_PPC64_TPREL16_HIGHEST: | |
| 5567 | case R_PPC64_TPREL16_HIGHESTA: | |
| 5568 | if (info->shared) | |
| 5569 | { | |
| 1d483afe AM |
5570 | if (!info->executable) |
| 5571 | info->flags |= DF_STATIC_TLS; | |
| 411e1bfb | 5572 | goto dodyn; |
| 5d1634d7 AM |
5573 | } |
| 5574 | break; | |
| 5575 | ||
| e86ce104 | 5576 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5577 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5578 | && rel + 1 < rel_end |
| 4ce794b7 | 5579 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5580 | { |
| 8387904d AM |
5581 | if (h != NULL) |
| 5582 | { | |
| 5583 | if (h->root.root.string[0] == '.' | |
| 5584 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5585 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5586 | ; |
| 5587 | else | |
| 5588 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5589 | } | |
| 5590 | else | |
| 5591 | { | |
| 5592 | asection *s; | |
| 87d72d41 | 5593 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5594 | |
| 87d72d41 AM |
5595 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5596 | abfd, r_symndx); | |
| 5597 | if (isym == NULL) | |
| 8387904d | 5598 | return FALSE; |
| 87d72d41 AM |
5599 | |
| 5600 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5601 | if (s != NULL && s != sec) | |
| 3f764659 | 5602 | opd_sym_map[rel->r_offset / 8] = s; |
| 8387904d | 5603 | } |
| 1e2f5b6e | 5604 | } |
| e86ce104 AM |
5605 | /* Fall through. */ |
| 5606 | ||
| 04c9666a | 5607 | case R_PPC64_REL30: |
| 5bd4f169 | 5608 | case R_PPC64_REL32: |
| 04c9666a | 5609 | case R_PPC64_REL64: |
| 65f38f15 AM |
5610 | case R_PPC64_ADDR14: |
| 5611 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5612 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5613 | case R_PPC64_ADDR16: | |
| 5614 | case R_PPC64_ADDR16_DS: | |
| 5615 | case R_PPC64_ADDR16_HA: | |
| 5616 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5617 | case R_PPC64_ADDR16_HIGH: |
| 5618 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5619 | case R_PPC64_ADDR16_HIGHER: |
| 5620 | case R_PPC64_ADDR16_HIGHERA: | |
| 5621 | case R_PPC64_ADDR16_HIGHEST: | |
| 5622 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5623 | case R_PPC64_ADDR16_LO: | |
| 5624 | case R_PPC64_ADDR16_LO_DS: | |
| 5625 | case R_PPC64_ADDR24: | |
| 65f38f15 | 5626 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5627 | case R_PPC64_UADDR16: |
| 5628 | case R_PPC64_UADDR32: | |
| 5629 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5630 | case R_PPC64_TOC: |
| 81848ca0 AM |
5631 | if (h != NULL && !info->shared) |
| 5632 | /* We may need a copy reloc. */ | |
| f5385ebf | 5633 | h->non_got_ref = 1; |
| 81848ca0 | 5634 | |
| 41bd81ab | 5635 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5636 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5637 | break; |
| e86ce104 | 5638 | |
| 65f38f15 AM |
5639 | /* If we are creating a shared library, and this is a reloc |
| 5640 | against a global symbol, or a non PC relative reloc | |
| 5641 | against a local symbol, then we need to copy the reloc | |
| 5642 | into the shared library. However, if we are linking with | |
| 5643 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5644 | global symbol which is defined in an object we are | |
| 5645 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5646 | this point we have not seen all the input files, so it is | |
| 5647 | possible that DEF_REGULAR is not set now but will be set | |
| 5648 | later (it is never cleared). In case of a weak definition, | |
| 5649 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5650 | a shared library. We account for that possibility below by | |
| f4656909 | 5651 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5652 | table entry. A similar situation occurs when creating |
| 5653 | shared libraries and symbol visibility changes render the | |
| 5654 | symbol local. | |
| 5655 | ||
| 5656 | If on the other hand, we are creating an executable, we | |
| 5657 | may need to keep relocations for symbols satisfied by a | |
| 5658 | dynamic library if we manage to avoid copy relocs for the | |
| 5659 | symbol. */ | |
| 411e1bfb | 5660 | dodyn: |
| 65f38f15 | 5661 | if ((info->shared |
| 1d483afe | 5662 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5663 | || (h != NULL |
| 198f1157 | 5664 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5665 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5666 | || !h->def_regular)))) |
| f4656909 AM |
5667 | || (ELIMINATE_COPY_RELOCS |
| 5668 | && !info->shared | |
| 65f38f15 AM |
5669 | && h != NULL |
| 5670 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 AM |
5671 | || !h->def_regular)) |
| 5672 | || (!info->shared | |
| 5673 | && ifunc != NULL)) | |
| 5bd4f169 | 5674 | { |
| 65f38f15 AM |
5675 | /* We must copy these reloc types into the output file. |
| 5676 | Create a reloc section in dynobj and make room for | |
| 5677 | this reloc. */ | |
| 5bd4f169 AM |
5678 | if (sreloc == NULL) |
| 5679 | { | |
| 83bac4b0 NC |
5680 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5681 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5682 | |
| 5bd4f169 | 5683 | if (sreloc == NULL) |
| 83bac4b0 | 5684 | return FALSE; |
| 5bd4f169 AM |
5685 | } |
| 5686 | ||
| 65f38f15 AM |
5687 | /* If this is a global symbol, we count the number of |
| 5688 | relocations we need for this symbol. */ | |
| 5689 | if (h != NULL) | |
| 5690 | { | |
| 19e08130 AM |
5691 | struct elf_dyn_relocs *p; |
| 5692 | struct elf_dyn_relocs **head; | |
| 5693 | ||
| ec338859 | 5694 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5695 | p = *head; |
| 5696 | if (p == NULL || p->sec != sec) | |
| 5697 | { | |
| 5698 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5699 | if (p == NULL) | |
| 5700 | return FALSE; | |
| 5701 | p->next = *head; | |
| 5702 | *head = p; | |
| 5703 | p->sec = sec; | |
| 5704 | p->count = 0; | |
| 5705 | p->pc_count = 0; | |
| 5706 | } | |
| 5707 | p->count += 1; | |
| 5708 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5709 | p->pc_count += 1; | |
| 65f38f15 AM |
5710 | } |
| 5711 | else | |
| 5712 | { | |
| ec338859 AM |
5713 | /* Track dynamic relocs needed for local syms too. |
| 5714 | We really need local syms available to do this | |
| 5715 | easily. Oh well. */ | |
| 19e08130 AM |
5716 | struct ppc_dyn_relocs *p; |
| 5717 | struct ppc_dyn_relocs **head; | |
| 5718 | bfd_boolean is_ifunc; | |
| ec338859 | 5719 | asection *s; |
| 6edfbbad | 5720 | void *vpp; |
| 87d72d41 | 5721 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5722 | |
| 87d72d41 AM |
5723 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5724 | abfd, r_symndx); | |
| 5725 | if (isym == NULL) | |
| b34976b6 | 5726 | return FALSE; |
| ec338859 | 5727 | |
| 87d72d41 AM |
5728 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5729 | if (s == NULL) | |
| 5730 | s = sec; | |
| 5731 | ||
| 6edfbbad | 5732 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5733 | head = (struct ppc_dyn_relocs **) vpp; |
| 5734 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5735 | p = *head; | |
| 5736 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5737 | p = p->next; | |
| 5738 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5739 | { | |
| 5740 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5741 | if (p == NULL) | |
| 5742 | return FALSE; | |
| 5743 | p->next = *head; | |
| 5744 | *head = p; | |
| 5745 | p->sec = sec; | |
| 5746 | p->ifunc = is_ifunc; | |
| 5747 | p->count = 0; | |
| 5748 | } | |
| 5749 | p->count += 1; | |
| ec338859 | 5750 | } |
| 65f38f15 | 5751 | } |
| 5bd4f169 | 5752 | break; |
| 65f38f15 AM |
5753 | |
| 5754 | default: | |
| 96e0dda4 | 5755 | break; |
| 5bd4f169 AM |
5756 | } |
| 5757 | } | |
| 5758 | ||
| b34976b6 | 5759 | return TRUE; |
| 5bd4f169 AM |
5760 | } |
| 5761 | ||
| ee67d69a AM |
5762 | /* Merge backend specific data from an object file to the output |
| 5763 | object file when linking. */ | |
| 5764 | ||
| 5765 | static bfd_boolean | |
| 5766 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
| 5767 | { | |
| 5768 | unsigned long iflags, oflags; | |
| 5769 | ||
| 5770 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5771 | return TRUE; | |
| 5772 | ||
| 5773 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 5774 | return TRUE; | |
| 5775 | ||
| 5776 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
| 5777 | return FALSE; | |
| 5778 | ||
| 5779 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 5780 | oflags = elf_elfheader (obfd)->e_flags; | |
| 5781 | ||
| 5782 | if (!elf_flags_init (obfd) || oflags == 0) | |
| 5783 | { | |
| 5784 | elf_flags_init (obfd) = TRUE; | |
| 5785 | elf_elfheader (obfd)->e_flags = iflags; | |
| 5786 | } | |
| 5787 | else if (iflags == oflags || iflags == 0) | |
| 5788 | ; | |
| 5789 | else if (iflags & ~EF_PPC64_ABI) | |
| 5790 | { | |
| 5791 | (*_bfd_error_handler) | |
| 5792 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); | |
| 5793 | bfd_set_error (bfd_error_bad_value); | |
| 5794 | return FALSE; | |
| 5795 | } | |
| 5796 | else | |
| 5797 | { | |
| 5798 | (*_bfd_error_handler) | |
| 5799 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), | |
| 5800 | ibfd, iflags, oflags); | |
| 5801 | bfd_set_error (bfd_error_bad_value); | |
| 5802 | return FALSE; | |
| 5803 | } | |
| 5804 | ||
| 5805 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
| 5806 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
| 5807 | ||
| 5808 | return TRUE; | |
| 5809 | } | |
| 5810 | ||
| 5811 | static bfd_boolean | |
| 5812 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 5813 | { | |
| 5814 | /* Print normal ELF private data. */ | |
| 5815 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 5816 | ||
| 5817 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 5818 | { | |
| 5819 | FILE *file = ptr; | |
| 5820 | ||
| 5821 | /* xgettext:c-format */ | |
| 5822 | fprintf (file, _("private flags = 0x%lx:"), | |
| 5823 | elf_elfheader (abfd)->e_flags); | |
| 5824 | ||
| 5825 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 5826 | fprintf (file, _(" [abiv%ld]"), | |
| 5827 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 5828 | fputc ('\n', file); | |
| 5829 | } | |
| 5830 | ||
| 5831 | return TRUE; | |
| 5832 | } | |
| 5833 | ||
| 8387904d AM |
5834 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| 5835 | of the code entry point, and its section. */ | |
| 5836 | ||
| 5837 | static bfd_vma | |
| 5838 | opd_entry_value (asection *opd_sec, | |
| 5839 | bfd_vma offset, | |
| 5840 | asection **code_sec, | |
| aef36ac1 AM |
5841 | bfd_vma *code_off, |
| 5842 | bfd_boolean in_code_sec) | |
| 8387904d AM |
5843 | { |
| 5844 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 5845 | Elf_Internal_Rela *relocs; |
| 8387904d | 5846 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 5847 | bfd_vma val; |
| 8387904d | 5848 | |
| 9f296da3 AM |
5849 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 5850 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
5851 | if (opd_sec->reloc_count == 0) |
| 5852 | { | |
| 729eabd5 | 5853 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 5854 | |
| 729eabd5 AM |
5855 | if (contents == NULL) |
| 5856 | { | |
| 5857 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 5858 | return (bfd_vma) -1; | |
| 5859 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 5860 | } | |
| ee1e4ede | 5861 | |
| 729eabd5 | 5862 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
5863 | if (code_sec != NULL) |
| 5864 | { | |
| 5865 | asection *sec, *likely = NULL; | |
| ee1e4ede | 5866 | |
| aef36ac1 | 5867 | if (in_code_sec) |
| 4b85d634 | 5868 | { |
| aef36ac1 AM |
5869 | sec = *code_sec; |
| 5870 | if (sec->vma <= val | |
| 5871 | && val < sec->vma + sec->size) | |
| 5872 | likely = sec; | |
| 5873 | else | |
| 5874 | val = -1; | |
| 5875 | } | |
| 5876 | else | |
| 5877 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 5878 | if (sec->vma <= val | |
| 5879 | && (sec->flags & SEC_LOAD) != 0 | |
| 5880 | && (sec->flags & SEC_ALLOC) != 0) | |
| 5881 | likely = sec; | |
| 5882 | if (likely != NULL) | |
| 5883 | { | |
| 5884 | *code_sec = likely; | |
| 5885 | if (code_off != NULL) | |
| 5886 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
5887 | } |
| 5888 | } | |
| aef36ac1 | 5889 | return val; |
| 4b85d634 AM |
5890 | } |
| 5891 | ||
| 0c8d6e5c | 5892 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 5893 | |
| 729eabd5 | 5894 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
5895 | if (relocs == NULL) |
| 5896 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 645ea6a9 | 5897 | |
| 8387904d | 5898 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 5899 | lo = relocs; |
| 8387904d AM |
5900 | BFD_ASSERT (lo != NULL); |
| 5901 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ | |
| 645ea6a9 | 5902 | val = (bfd_vma) -1; |
| 8387904d AM |
5903 | while (lo < hi) |
| 5904 | { | |
| 5905 | look = lo + (hi - lo) / 2; | |
| 5906 | if (look->r_offset < offset) | |
| 5907 | lo = look + 1; | |
| 5908 | else if (look->r_offset > offset) | |
| 5909 | hi = look; | |
| 5910 | else | |
| 5911 | { | |
| 0ffa91dd NC |
5912 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 5913 | ||
| 8387904d AM |
5914 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 5915 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 5916 | { | |
| 5917 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| 8387904d AM |
5918 | asection *sec; |
| 5919 | ||
| 62599110 AM |
5920 | if (symndx < symtab_hdr->sh_info |
| 5921 | || elf_sym_hashes (opd_bfd) == NULL) | |
| 8387904d AM |
5922 | { |
| 5923 | Elf_Internal_Sym *sym; | |
| 5924 | ||
| 5925 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 5926 | if (sym == NULL) | |
| 5927 | { | |
| 62599110 AM |
5928 | size_t symcnt = symtab_hdr->sh_info; |
| 5929 | if (elf_sym_hashes (opd_bfd) == NULL) | |
| 5930 | symcnt = symtab_hdr->sh_size / symtab_hdr->sh_entsize; | |
| 5931 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, symcnt, | |
| 8387904d AM |
5932 | 0, NULL, NULL, NULL); |
| 5933 | if (sym == NULL) | |
| 645ea6a9 | 5934 | break; |
| 8387904d AM |
5935 | symtab_hdr->contents = (bfd_byte *) sym; |
| 5936 | } | |
| 5937 | ||
| 5938 | sym += symndx; | |
| 5939 | val = sym->st_value; | |
| cb33740c | 5940 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 8387904d AM |
5941 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); |
| 5942 | } | |
| 5943 | else | |
| 5944 | { | |
| 5945 | struct elf_link_hash_entry **sym_hashes; | |
| 5946 | struct elf_link_hash_entry *rh; | |
| 5947 | ||
| 5948 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 5949 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
5950 | if (rh != NULL) |
| 5951 | { | |
| 5952 | rh = elf_follow_link (rh); | |
| 5953 | BFD_ASSERT (rh->root.type == bfd_link_hash_defined | |
| 5954 | || rh->root.type == bfd_link_hash_defweak); | |
| 5955 | val = rh->root.u.def.value; | |
| 5956 | sec = rh->root.u.def.section; | |
| 5957 | } | |
| 5958 | else | |
| 5959 | { | |
| 5960 | /* Handle the odd case where we can be called | |
| 5961 | during bfd_elf_link_add_symbols before the | |
| 5962 | symbol hashes have been fully populated. */ | |
| 5963 | Elf_Internal_Sym *sym; | |
| 5964 | ||
| 5965 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, 1, | |
| 5966 | symndx, NULL, NULL, NULL); | |
| 5967 | if (sym == NULL) | |
| 5968 | break; | |
| 5969 | ||
| 5970 | val = sym->st_value; | |
| 5971 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); | |
| 5972 | free (sym); | |
| 5973 | } | |
| 8387904d AM |
5974 | } |
| 5975 | val += look->r_addend; | |
| 5976 | if (code_off != NULL) | |
| 5977 | *code_off = val; | |
| 5978 | if (code_sec != NULL) | |
| aef36ac1 AM |
5979 | { |
| 5980 | if (in_code_sec && *code_sec != sec) | |
| 5981 | return -1; | |
| 5982 | else | |
| 5983 | *code_sec = sec; | |
| 5984 | } | |
| 8387904d AM |
5985 | if (sec != NULL && sec->output_section != NULL) |
| 5986 | val += sec->output_section->vma + sec->output_offset; | |
| 8387904d AM |
5987 | } |
| 5988 | break; | |
| 5989 | } | |
| 5990 | } | |
| 645ea6a9 | 5991 | |
| 645ea6a9 | 5992 | return val; |
| 8387904d AM |
5993 | } |
| 5994 | ||
| aef36ac1 AM |
5995 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 5996 | function size and set *CODE_OFF to the function's entry point, | |
| 5997 | otherwise return zero. */ | |
| 9f296da3 | 5998 | |
| aef36ac1 AM |
5999 | static bfd_size_type |
| 6000 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6001 | bfd_vma *code_off) | |
| 9f296da3 | 6002 | { |
| aef36ac1 AM |
6003 | bfd_size_type size; |
| 6004 | ||
| 6005 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6006 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6007 | return 0; | |
| 6008 | ||
| 6009 | size = 0; | |
| 6010 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6011 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6012 | ||
| 6013 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6014 | { |
| aef36ac1 AM |
6015 | if (opd_entry_value (sym->section, sym->value, |
| 6016 | &sec, code_off, TRUE) == (bfd_vma) -1) | |
| 6017 | return 0; | |
| 6018 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6019 | symbol. This size has nothing to do with the code size of the | |
| 6020 | function, which is what we're supposed to return, but the | |
| 6021 | code size isn't available without looking up the dot-sym. | |
| 6022 | However, doing that would be a waste of time particularly | |
| 6023 | since elf_find_function will look at the dot-sym anyway. | |
| 6024 | Now, elf_find_function will keep the largest size of any | |
| 6025 | function sym found at the code address of interest, so return | |
| 6026 | 1 here to avoid it incorrectly caching a larger function size | |
| 6027 | for a small function. This does mean we return the wrong | |
| 6028 | size for a new-ABI function of size 24, but all that does is | |
| 6029 | disable caching for such functions. */ | |
| 6030 | if (size == 24) | |
| 6031 | size = 1; | |
| 9f296da3 | 6032 | } |
| aef36ac1 AM |
6033 | else |
| 6034 | { | |
| 6035 | if (sym->section != sec) | |
| 6036 | return 0; | |
| 6037 | *code_off = sym->value; | |
| 6038 | } | |
| 6039 | if (size == 0) | |
| 6040 | size = 1; | |
| 6041 | return size; | |
| 9f296da3 AM |
6042 | } |
| 6043 | ||
| 854b41e7 AM |
6044 | /* Return true if symbol is defined in a regular object file. */ |
| 6045 | ||
| 6046 | static bfd_boolean | |
| 6047 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6048 | { | |
| 6049 | return ((h->root.type == bfd_link_hash_defined | |
| 6050 | || h->root.type == bfd_link_hash_defweak) | |
| 6051 | && h->root.u.def.section != NULL | |
| 6052 | && h->root.u.def.section->output_section != NULL); | |
| 6053 | } | |
| 6054 | ||
| b31867b6 AM |
6055 | /* If FDH is a function descriptor symbol, return the associated code |
| 6056 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6057 | ||
| 6058 | static struct ppc_link_hash_entry * | |
| 6059 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6060 | { | |
| 6061 | if (fdh->is_func_descriptor) | |
| 6062 | { | |
| 6063 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6064 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6065 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6066 | return fh; | |
| 6067 | } | |
| 6068 | return NULL; | |
| 6069 | } | |
| 6070 | ||
| 6071 | /* If FH is a function code entry symbol, return the associated | |
| 6072 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6073 | ||
| 6074 | static struct ppc_link_hash_entry * | |
| 6075 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6076 | { | |
| 6077 | if (fh->oh != NULL | |
| 6078 | && fh->oh->is_func_descriptor) | |
| 6079 | { | |
| 6080 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6081 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6082 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6083 | return fdh; | |
| 6084 | } | |
| 6085 | return NULL; | |
| 6086 | } | |
| 6087 | ||
| 74f0fb50 AM |
6088 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6089 | ||
| 6090 | static void | |
| 6091 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6092 | { | |
| 6093 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6094 | struct bfd_sym_chain *sym; | |
| 6095 | ||
| 4dfe6ac6 NC |
6096 | if (htab == NULL) |
| 6097 | return; | |
| 6098 | ||
| 74f0fb50 AM |
6099 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6100 | { | |
| b31867b6 | 6101 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6102 | asection *sec; |
| 6103 | ||
| 6104 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6105 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6106 | if (eh == NULL) |
| 6107 | continue; | |
| 6108 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6109 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6110 | continue; | |
| 6111 | ||
| b31867b6 AM |
6112 | fh = defined_code_entry (eh); |
| 6113 | if (fh != NULL) | |
| 74f0fb50 | 6114 | { |
| b31867b6 | 6115 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6116 | sec->flags |= SEC_KEEP; |
| 6117 | } | |
| 6118 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6119 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6120 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6121 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6122 | sec->flags |= SEC_KEEP; |
| 6123 | ||
| 6124 | sec = eh->elf.root.u.def.section; | |
| 6125 | sec->flags |= SEC_KEEP; | |
| 6126 | } | |
| 6127 | } | |
| 6128 | ||
| 64d03ab5 AM |
6129 | /* Mark sections containing dynamically referenced symbols. When |
| 6130 | building shared libraries, we must assume that any visible symbol is | |
| 6131 | referenced. */ | |
| 6132 | ||
| 6133 | static bfd_boolean | |
| 6134 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6135 | { | |
| 6136 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6137 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6138 | struct ppc_link_hash_entry *fdh; |
| 64d03ab5 | 6139 | |
| 64d03ab5 | 6140 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6141 | fdh = defined_func_desc (eh); |
| 6142 | if (fdh != NULL) | |
| 6143 | eh = fdh; | |
| 64d03ab5 AM |
6144 | |
| 6145 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6146 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6147 | && (eh->elf.ref_dynamic | |
| 6148 | || (!info->executable | |
| 6149 | && eh->elf.def_regular | |
| 6150 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL | |
| 4c58e0d8 AM |
6151 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 6152 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL | |
| 6153 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6154 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6155 | { |
| 6156 | asection *code_sec; | |
| b31867b6 | 6157 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6158 | |
| 6159 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6160 | ||
| 6161 | /* Function descriptor syms cause the associated | |
| 6162 | function code sym section to be marked. */ | |
| b31867b6 AM |
6163 | fh = defined_code_entry (eh); |
| 6164 | if (fh != NULL) | |
| 6165 | { | |
| 6166 | code_sec = fh->elf.root.u.def.section; | |
| 6167 | code_sec->flags |= SEC_KEEP; | |
| 6168 | } | |
| 64d03ab5 AM |
6169 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6170 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6171 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6172 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6173 | code_sec->flags |= SEC_KEEP; |
| 6174 | } | |
| 6175 | ||
| 6176 | return TRUE; | |
| 6177 | } | |
| 6178 | ||
| 5bd4f169 AM |
6179 | /* Return the section that should be marked against GC for a given |
| 6180 | relocation. */ | |
| 6181 | ||
| 6182 | static asection * | |
| 4ce794b7 | 6183 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6184 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6185 | Elf_Internal_Rela *rel, |
| 6186 | struct elf_link_hash_entry *h, | |
| 6187 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6188 | { |
| ccfa59ea AM |
6189 | asection *rsec; |
| 6190 | ||
| ccfa59ea AM |
6191 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6192 | function sections, as all functions are referenced in .opd. */ | |
| 6193 | rsec = NULL; | |
| 6194 | if (get_opd_info (sec) != NULL) | |
| 6195 | return rsec; | |
| 1e2f5b6e | 6196 | |
| 5bd4f169 AM |
6197 | if (h != NULL) |
| 6198 | { | |
| 04c9666a | 6199 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6200 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6201 | |
| 4ce794b7 | 6202 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6203 | switch (r_type) |
| 5bd4f169 AM |
6204 | { |
| 6205 | case R_PPC64_GNU_VTINHERIT: | |
| 6206 | case R_PPC64_GNU_VTENTRY: | |
| 6207 | break; | |
| 6208 | ||
| 6209 | default: | |
| 6210 | switch (h->root.type) | |
| 6211 | { | |
| 6212 | case bfd_link_hash_defined: | |
| 6213 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6214 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6215 | fdh = defined_func_desc (eh); |
| 6216 | if (fdh != NULL) | |
| 6217 | eh = fdh; | |
| 1e2f5b6e AM |
6218 | |
| 6219 | /* Function descriptor syms cause the associated | |
| 6220 | function code sym section to be marked. */ | |
| b31867b6 AM |
6221 | fh = defined_code_entry (eh); |
| 6222 | if (fh != NULL) | |
| ccfa59ea AM |
6223 | { |
| 6224 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6225 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6226 | |
| b31867b6 | 6227 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6228 | } |
| 8387904d AM |
6229 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6230 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6231 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6232 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6233 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6234 | else |
| 1e2f5b6e AM |
6235 | rsec = h->root.u.def.section; |
| 6236 | break; | |
| 5bd4f169 AM |
6237 | |
| 6238 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6239 | rsec = h->root.u.c.p->section; |
| 6240 | break; | |
| 5bd4f169 AM |
6241 | |
| 6242 | default: | |
| fb34365b | 6243 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6244 | } |
| 6245 | } | |
| 6246 | } | |
| 6247 | else | |
| 6248 | { | |
| 74f0fb50 | 6249 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6250 | |
| 6251 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6252 | opd = get_opd_info (rsec); |
| 6253 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6254 | { |
| 74f0fb50 | 6255 | rsec->gc_mark = 1; |
| ccfa59ea | 6256 | |
| 74f0fb50 | 6257 | rsec = opd->func_sec[(sym->st_value + rel->r_addend) / 8]; |
| ccfa59ea | 6258 | } |
| 5bd4f169 AM |
6259 | } |
| 6260 | ||
| 1e2f5b6e | 6261 | return rsec; |
| 5bd4f169 AM |
6262 | } |
| 6263 | ||
| 65f38f15 AM |
6264 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6265 | section being removed. */ | |
| 5bd4f169 | 6266 | |
| b34976b6 | 6267 | static bfd_boolean |
| 4ce794b7 AM |
6268 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6269 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6270 | { |
| 411e1bfb | 6271 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6272 | Elf_Internal_Shdr *symtab_hdr; |
| 6273 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6274 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6275 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6276 | |
| 7dda2462 TG |
6277 | if (info->relocatable) |
| 6278 | return TRUE; | |
| 6279 | ||
| 680a3378 AM |
6280 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6281 | return TRUE; | |
| 6282 | ||
| ec338859 AM |
6283 | elf_section_data (sec)->local_dynrel = NULL; |
| 6284 | ||
| 411e1bfb | 6285 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6286 | if (htab == NULL) |
| 6287 | return FALSE; | |
| 6288 | ||
| 0ffa91dd | 6289 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6290 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6291 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6292 | |
| 6293 | relend = relocs + sec->reloc_count; | |
| 6294 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6295 | { |
| 6296 | unsigned long r_symndx; | |
| 04c9666a | 6297 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6298 | struct elf_link_hash_entry *h = NULL; |
| f961d9dd | 6299 | unsigned char tls_type = 0; |
| 5bd4f169 | 6300 | |
| a33d1f77 | 6301 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6302 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6303 | if (r_symndx >= symtab_hdr->sh_info) |
| 6304 | { | |
| 6305 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6306 | struct elf_dyn_relocs **pp; |
| 6307 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6308 | |
| 6309 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6310 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6311 | eh = (struct ppc_link_hash_entry *) h; |
| 6312 | ||
| 6313 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6314 | if (p->sec == sec) | |
| 6315 | { | |
| 6316 | /* Everything must go for SEC. */ | |
| 6317 | *pp = p->next; | |
| 6318 | break; | |
| 6319 | } | |
| 6320 | } | |
| 6321 | ||
| e054468f AM |
6322 | if (is_branch_reloc (r_type)) |
| 6323 | { | |
| 6324 | struct plt_entry **ifunc = NULL; | |
| 6325 | if (h != NULL) | |
| 6326 | { | |
| 6327 | if (h->type == STT_GNU_IFUNC) | |
| 6328 | ifunc = &h->plt.plist; | |
| 6329 | } | |
| 6330 | else if (local_got_ents != NULL) | |
| 6331 | { | |
| 6332 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6333 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 6334 | unsigned char *local_got_tls_masks = (unsigned char *) |
| e054468f AM |
6335 | (local_plt + symtab_hdr->sh_info); |
| 6336 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6337 | ifunc = local_plt + r_symndx; | |
| 6338 | } | |
| 6339 | if (ifunc != NULL) | |
| 6340 | { | |
| 6341 | struct plt_entry *ent; | |
| 6342 | ||
| 6343 | for (ent = *ifunc; ent != NULL; ent = ent->next) | |
| 6344 | if (ent->addend == rel->r_addend) | |
| 6345 | break; | |
| 6346 | if (ent == NULL) | |
| 6347 | abort (); | |
| 6348 | if (ent->plt.refcount > 0) | |
| 6349 | ent->plt.refcount -= 1; | |
| 6350 | continue; | |
| 6351 | } | |
| 6352 | } | |
| 6353 | ||
| a33d1f77 AM |
6354 | switch (r_type) |
| 6355 | { | |
| 411e1bfb AM |
6356 | case R_PPC64_GOT_TLSLD16: |
| 6357 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6358 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6359 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6360 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6361 | goto dogot; |
| 6362 | ||
| 6363 | case R_PPC64_GOT_TLSGD16: | |
| 6364 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6365 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6366 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6367 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6368 | goto dogot; |
| 6369 | ||
| 6370 | case R_PPC64_GOT_TPREL16_DS: | |
| 6371 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6372 | case R_PPC64_GOT_TPREL16_HI: | |
| 6373 | case R_PPC64_GOT_TPREL16_HA: | |
| 6374 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6375 | goto dogot; | |
| 6376 | ||
| 6377 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6378 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6379 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6380 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6381 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6382 | goto dogot; | |
| 6383 | ||
| a33d1f77 AM |
6384 | case R_PPC64_GOT16: |
| 6385 | case R_PPC64_GOT16_DS: | |
| 6386 | case R_PPC64_GOT16_HA: | |
| 6387 | case R_PPC64_GOT16_HI: | |
| 6388 | case R_PPC64_GOT16_LO: | |
| 6389 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6390 | dogot: |
| 6391 | { | |
| 6392 | struct got_entry *ent; | |
| 6393 | ||
| 58ac9f71 AM |
6394 | if (h != NULL) |
| 6395 | ent = h->got.glist; | |
| 411e1bfb AM |
6396 | else |
| 6397 | ent = local_got_ents[r_symndx]; | |
| 6398 | ||
| 6399 | for (; ent != NULL; ent = ent->next) | |
| 6400 | if (ent->addend == rel->r_addend | |
| e717da7e | 6401 | && ent->owner == abfd |
| 411e1bfb AM |
6402 | && ent->tls_type == tls_type) |
| 6403 | break; | |
| 6404 | if (ent == NULL) | |
| 6405 | abort (); | |
| 6406 | if (ent->got.refcount > 0) | |
| 6407 | ent->got.refcount -= 1; | |
| 6408 | } | |
| a33d1f77 | 6409 | break; |
| 65f38f15 | 6410 | |
| a33d1f77 AM |
6411 | case R_PPC64_PLT16_HA: |
| 6412 | case R_PPC64_PLT16_HI: | |
| 6413 | case R_PPC64_PLT16_LO: | |
| 6414 | case R_PPC64_PLT32: | |
| 6415 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6416 | case R_PPC64_REL14: |
| 6417 | case R_PPC64_REL14_BRNTAKEN: | |
| 6418 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6419 | case R_PPC64_REL24: |
| 58ac9f71 | 6420 | if (h != NULL) |
| 5d1634d7 | 6421 | { |
| 411e1bfb AM |
6422 | struct plt_entry *ent; |
| 6423 | ||
| 411e1bfb AM |
6424 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 6425 | if (ent->addend == rel->r_addend) | |
| 6426 | break; | |
| 7c6c1722 | 6427 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6428 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6429 | } |
| e86ce104 | 6430 | break; |
| 5d1634d7 | 6431 | |
| a33d1f77 AM |
6432 | default: |
| 6433 | break; | |
| 6434 | } | |
| 6435 | } | |
| b34976b6 | 6436 | return TRUE; |
| 5bd4f169 AM |
6437 | } |
| 6438 | ||
| deb0e272 AM |
6439 | /* The maximum size of .sfpr. */ |
| 6440 | #define SFPR_MAX (218*4) | |
| 6441 | ||
| 6442 | struct sfpr_def_parms | |
| 6443 | { | |
| 699733f6 AM |
6444 | const char name[12]; |
| 6445 | unsigned char lo, hi; | |
| deb0e272 AM |
6446 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6447 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6448 | }; | |
| 6449 | ||
| 6450 | /* Auto-generate _save*, _rest* functions in .sfpr. */ | |
| 6451 | ||
| 4dfe6ac6 | 6452 | static bfd_boolean |
| deb0e272 AM |
6453 | sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm) |
| 6454 | { | |
| 6455 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6456 | unsigned int i; | |
| 6457 | size_t len = strlen (parm->name); | |
| 6458 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6459 | char sym[16]; |
| deb0e272 | 6460 | |
| 4dfe6ac6 NC |
6461 | if (htab == NULL) |
| 6462 | return FALSE; | |
| 6463 | ||
| deb0e272 AM |
6464 | memcpy (sym, parm->name, len); |
| 6465 | sym[len + 2] = 0; | |
| 6466 | ||
| 6467 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6468 | { | |
| 6469 | struct elf_link_hash_entry *h; | |
| 6470 | ||
| 6471 | sym[len + 0] = i / 10 + '0'; | |
| 6472 | sym[len + 1] = i % 10 + '0'; | |
| 6473 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
| 6474 | if (h != NULL | |
| f5385ebf | 6475 | && !h->def_regular) |
| deb0e272 AM |
6476 | { |
| 6477 | h->root.type = bfd_link_hash_defined; | |
| 6478 | h->root.u.def.section = htab->sfpr; | |
| 6479 | h->root.u.def.value = htab->sfpr->size; | |
| 6480 | h->type = STT_FUNC; | |
| f5385ebf | 6481 | h->def_regular = 1; |
| deb0e272 AM |
6482 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
| 6483 | writing = TRUE; | |
| 6484 | if (htab->sfpr->contents == NULL) | |
| 6485 | { | |
| 6486 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6487 | if (htab->sfpr->contents == NULL) | |
| 6488 | return FALSE; | |
| 6489 | } | |
| 6490 | } | |
| 6491 | if (writing) | |
| 6492 | { | |
| 6493 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6494 | if (i != parm->hi) | |
| 6495 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6496 | else | |
| 6497 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6498 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6499 | } | |
| 6500 | } | |
| 6501 | ||
| 6502 | return TRUE; | |
| 6503 | } | |
| 6504 | ||
| 6505 | static bfd_byte * | |
| 6506 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6507 | { | |
| 6508 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6509 | return p + 4; | |
| 6510 | } | |
| 6511 | ||
| 6512 | static bfd_byte * | |
| 6513 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6514 | { | |
| 6515 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6516 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6517 | p = p + 4; |
| 6518 | bfd_put_32 (abfd, BLR, p); | |
| 6519 | return p + 4; | |
| 6520 | } | |
| 6521 | ||
| 6522 | static bfd_byte * | |
| 6523 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6524 | { | |
| 6525 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6526 | return p + 4; | |
| 6527 | } | |
| 6528 | ||
| 6529 | static bfd_byte * | |
| 6530 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6531 | { | |
| a078d95a | 6532 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6533 | p = p + 4; |
| 6534 | p = restgpr0 (abfd, p, r); | |
| 6535 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6536 | p = p + 4; | |
| 6537 | if (r == 29) | |
| 6538 | { | |
| 6539 | p = restgpr0 (abfd, p, 30); | |
| 6540 | p = restgpr0 (abfd, p, 31); | |
| 6541 | } | |
| 6542 | bfd_put_32 (abfd, BLR, p); | |
| 6543 | return p + 4; | |
| 6544 | } | |
| 6545 | ||
| 6546 | static bfd_byte * | |
| 6547 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6548 | { | |
| 6549 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6550 | return p + 4; | |
| 6551 | } | |
| 6552 | ||
| 6553 | static bfd_byte * | |
| 6554 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6555 | { | |
| 6556 | p = savegpr1 (abfd, p, r); | |
| 6557 | bfd_put_32 (abfd, BLR, p); | |
| 6558 | return p + 4; | |
| 6559 | } | |
| 6560 | ||
| 6561 | static bfd_byte * | |
| 6562 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6563 | { | |
| 6564 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6565 | return p + 4; | |
| 6566 | } | |
| 6567 | ||
| 6568 | static bfd_byte * | |
| 6569 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6570 | { | |
| 6571 | p = restgpr1 (abfd, p, r); | |
| 6572 | bfd_put_32 (abfd, BLR, p); | |
| 6573 | return p + 4; | |
| 6574 | } | |
| 6575 | ||
| 6576 | static bfd_byte * | |
| 6577 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6578 | { | |
| 6579 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6580 | return p + 4; | |
| 6581 | } | |
| 6582 | ||
| 6583 | static bfd_byte * | |
| 6584 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6585 | { | |
| 6586 | p = savefpr (abfd, p, r); | |
| a078d95a | 6587 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6588 | p = p + 4; |
| 6589 | bfd_put_32 (abfd, BLR, p); | |
| 6590 | return p + 4; | |
| 6591 | } | |
| 6592 | ||
| 6593 | static bfd_byte * | |
| 6594 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6595 | { | |
| 6596 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6597 | return p + 4; | |
| 6598 | } | |
| 6599 | ||
| 6600 | static bfd_byte * | |
| 6601 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6602 | { | |
| a078d95a | 6603 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6604 | p = p + 4; |
| 6605 | p = restfpr (abfd, p, r); | |
| 6606 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6607 | p = p + 4; | |
| 6608 | if (r == 29) | |
| 6609 | { | |
| 6610 | p = restfpr (abfd, p, 30); | |
| 6611 | p = restfpr (abfd, p, 31); | |
| 6612 | } | |
| 6613 | bfd_put_32 (abfd, BLR, p); | |
| 6614 | return p + 4; | |
| 6615 | } | |
| 6616 | ||
| 6617 | static bfd_byte * | |
| 6618 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6619 | { | |
| 6620 | p = savefpr (abfd, p, r); | |
| 6621 | bfd_put_32 (abfd, BLR, p); | |
| 6622 | return p + 4; | |
| 6623 | } | |
| 6624 | ||
| 6625 | static bfd_byte * | |
| 6626 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6627 | { | |
| 6628 | p = restfpr (abfd, p, r); | |
| 6629 | bfd_put_32 (abfd, BLR, p); | |
| 6630 | return p + 4; | |
| 6631 | } | |
| 6632 | ||
| 6633 | static bfd_byte * | |
| 6634 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6635 | { | |
| 6636 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6637 | p = p + 4; | |
| 6638 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6639 | return p + 4; | |
| 6640 | } | |
| 6641 | ||
| 6642 | static bfd_byte * | |
| 6643 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6644 | { | |
| 6645 | p = savevr (abfd, p, r); | |
| 6646 | bfd_put_32 (abfd, BLR, p); | |
| 6647 | return p + 4; | |
| 6648 | } | |
| 6649 | ||
| 6650 | static bfd_byte * | |
| 6651 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6652 | { | |
| 6653 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6654 | p = p + 4; | |
| 6655 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6656 | return p + 4; | |
| 6657 | } | |
| 6658 | ||
| 6659 | static bfd_byte * | |
| 6660 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6661 | { | |
| 6662 | p = restvr (abfd, p, r); | |
| 6663 | bfd_put_32 (abfd, BLR, p); | |
| 6664 | return p + 4; | |
| 6665 | } | |
| 6666 | ||
| e86ce104 AM |
6667 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6668 | information on function code symbol entries to their corresponding | |
| 6669 | function descriptor symbol entries. */ | |
| deb0e272 | 6670 | |
| b34976b6 | 6671 | static bfd_boolean |
| 4ce794b7 | 6672 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6673 | { |
| e86ce104 | 6674 | struct bfd_link_info *info; |
| 65f38f15 | 6675 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6676 | struct plt_entry *ent; |
| 50bc7936 AM |
6677 | struct ppc_link_hash_entry *fh; |
| 6678 | struct ppc_link_hash_entry *fdh; | |
| 6679 | bfd_boolean force_local; | |
| 5bd4f169 | 6680 | |
| 50bc7936 AM |
6681 | fh = (struct ppc_link_hash_entry *) h; |
| 6682 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6683 | return TRUE; |
| e86ce104 | 6684 | |
| 4ce794b7 | 6685 | info = inf; |
| 65f38f15 | 6686 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6687 | if (htab == NULL) |
| 6688 | return FALSE; | |
| 5bd4f169 | 6689 | |
| c09bdfe5 AM |
6690 | /* Resolve undefined references to dot-symbols as the value |
| 6691 | in the function descriptor, if we have one in a regular object. | |
| 6692 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6693 | in dynamic objects are handled elsewhere. */ | |
| 6694 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6695 | && fh->was_undefined | |
| b31867b6 AM |
6696 | && (fdh = defined_func_desc (fh)) != NULL |
| 6697 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6698 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6699 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6700 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6701 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6702 | { |
| b31867b6 | 6703 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6704 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6705 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6706 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6707 | } |
| 6708 | ||
| e86ce104 AM |
6709 | /* If this is a function code symbol, transfer dynamic linking |
| 6710 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6711 | if (!fh->is_func) |
| b34976b6 | 6712 | return TRUE; |
| e86ce104 | 6713 | |
| 50bc7936 | 6714 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6715 | if (ent->plt.refcount > 0) |
| 6716 | break; | |
| 50bc7936 AM |
6717 | if (ent == NULL |
| 6718 | || fh->elf.root.root.string[0] != '.' | |
| 6719 | || fh->elf.root.root.string[1] == '\0') | |
| 6720 | return TRUE; | |
| 5bd4f169 | 6721 | |
| 50bc7936 AM |
6722 | /* Find the corresponding function descriptor symbol. Create it |
| 6723 | as undefined if necessary. */ | |
| 5bd4f169 | 6724 | |
| b31867b6 | 6725 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6726 | if (fdh == NULL |
| df131623 | 6727 | && !info->executable |
| 50bc7936 AM |
6728 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6729 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6730 | { | |
| 908b32fc | 6731 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6732 | if (fdh == NULL) |
| 6733 | return FALSE; | |
| 50bc7936 | 6734 | } |
| 648cca2c | 6735 | |
| 908b32fc | 6736 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6737 | code symbol is strong undefined, make the fake sym the same. |
| 6738 | If the function code symbol is defined, then force the fake | |
| 6739 | descriptor local; We can't support overriding of symbols in a | |
| 6740 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6741 | |
| 6742 | if (fdh != NULL | |
| 6743 | && fdh->fake | |
| 433817dd | 6744 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6745 | { |
| 433817dd AM |
6746 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6747 | { | |
| 6748 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6749 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6750 | } | |
| 6751 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6752 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6753 | { | |
| 6754 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6755 | } | |
| 908b32fc AM |
6756 | } |
| 6757 | ||
| 50bc7936 | 6758 | if (fdh != NULL |
| f5385ebf | 6759 | && !fdh->elf.forced_local |
| df131623 | 6760 | && (!info->executable |
| f5385ebf AM |
6761 | || fdh->elf.def_dynamic |
| 6762 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6763 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6764 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6765 | { | |
| 6766 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 6767 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 6768 | return FALSE; |
| f5385ebf AM |
6769 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6770 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6771 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6772 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 6773 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 6774 | { |
| 40d16e0b | 6775 | move_plt_plist (fh, fdh); |
| f5385ebf | 6776 | fdh->elf.needs_plt = 1; |
| e86ce104 | 6777 | } |
| 50bc7936 | 6778 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
6779 | fdh->oh = fh; |
| 6780 | fh->oh = fdh; | |
| e86ce104 AM |
6781 | } |
| 6782 | ||
| 50bc7936 AM |
6783 | /* Now that the info is on the function descriptor, clear the |
| 6784 | function code sym info. Any function code syms for which we | |
| 6785 | don't have a definition in a regular file, we force local. | |
| 6786 | This prevents a shared library from exporting syms that have | |
| 6787 | been imported from another library. Function code syms that | |
| 6788 | are really in the library we must leave global to prevent the | |
| 6789 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6790 | force_local = (!fh->elf.def_regular |
| 6791 | || fdh == NULL | |
| 6792 | || !fdh->elf.def_regular | |
| 6793 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6794 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6795 | ||
| b34976b6 | 6796 | return TRUE; |
| e86ce104 | 6797 | } |
| 40b8271b | 6798 | |
| e86ce104 | 6799 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6800 | this hook to a) provide some gcc support functions, and b) transfer |
| 6801 | dynamic linking information gathered so far on function code symbol | |
| 6802 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6803 | |
| b34976b6 | 6804 | static bfd_boolean |
| 4ce794b7 AM |
6805 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 6806 | struct bfd_link_info *info) | |
| e86ce104 AM |
6807 | { |
| 6808 | struct ppc_link_hash_table *htab; | |
| 82bd7b59 | 6809 | unsigned int i; |
| 27fc25a1 | 6810 | static const struct sfpr_def_parms funcs[] = |
| deb0e272 AM |
6811 | { |
| 6812 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6813 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6814 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6815 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6816 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6817 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6818 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6819 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6820 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6821 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6822 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6823 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6824 | }; | |
| e86ce104 AM |
6825 | |
| 6826 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6827 | if (htab == NULL) |
| 6828 | return FALSE; | |
| 6829 | ||
| 5295321c AM |
6830 | if (!info->relocatable |
| 6831 | && htab->elf.hgot != NULL) | |
| 6832 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| c66bb0ee | 6833 | |
| 82bd7b59 AM |
6834 | if (htab->sfpr == NULL) |
| 6835 | /* We don't have any relocs. */ | |
| b34976b6 | 6836 | return TRUE; |
| 82bd7b59 | 6837 | |
| deb0e272 AM |
6838 | /* Provide any missing _save* and _rest* functions. */ |
| 6839 | htab->sfpr->size = 0; | |
| 27fc25a1 AM |
6840 | if (!info->relocatable) |
| 6841 | for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++) | |
| 6842 | if (!sfpr_define (info, &funcs[i])) | |
| 6843 | return FALSE; | |
| 82bd7b59 | 6844 | |
| 4ce794b7 | 6845 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 6846 | |
| eea6121a | 6847 | if (htab->sfpr->size == 0) |
| 8423293d | 6848 | htab->sfpr->flags |= SEC_EXCLUDE; |
| 82bd7b59 | 6849 | |
| b34976b6 | 6850 | return TRUE; |
| e86ce104 AM |
6851 | } |
| 6852 | ||
| 6853 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
| 6854 | regular object. The current definition is in some section of the | |
| 6855 | dynamic object, but we're not including those sections. We have to | |
| 6856 | change the definition to something the rest of the link can | |
| 6857 | understand. */ | |
| 6858 | ||
| b34976b6 | 6859 | static bfd_boolean |
| 4ce794b7 AM |
6860 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 6861 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
6862 | { |
| 6863 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 6864 | asection *s; |
| e86ce104 AM |
6865 | |
| 6866 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
6867 | if (htab == NULL) |
| 6868 | return FALSE; | |
| e86ce104 AM |
6869 | |
| 6870 | /* Deal with function syms. */ | |
| 6871 | if (h->type == STT_FUNC | |
| e054468f | 6872 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 6873 | || h->needs_plt) |
| e86ce104 AM |
6874 | { |
| 6875 | /* Clear procedure linkage table information for any symbol that | |
| 6876 | won't need a .plt entry. */ | |
| 411e1bfb AM |
6877 | struct plt_entry *ent; |
| 6878 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 6879 | if (ent->plt.refcount > 0) | |
| 6880 | break; | |
| 8387904d | 6881 | if (ent == NULL |
| e054468f AM |
6882 | || (h->type != STT_GNU_IFUNC |
| 6883 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 6884 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| 6885 | && h->root.type == bfd_link_hash_undefweak)))) | |
| 40b8271b | 6886 | { |
| 411e1bfb | 6887 | h->plt.plist = NULL; |
| f5385ebf | 6888 | h->needs_plt = 0; |
| 40b8271b | 6889 | } |
| 5bd4f169 | 6890 | } |
| bbd7ec4a | 6891 | else |
| 411e1bfb | 6892 | h->plt.plist = NULL; |
| 5bd4f169 AM |
6893 | |
| 6894 | /* If this is a weak symbol, and there is a real definition, the | |
| 6895 | processor independent code will have arranged for us to see the | |
| 6896 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 6897 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 6898 | { |
| f6e332e6 AM |
6899 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 6900 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 6901 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 6902 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 6903 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 6904 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 6905 | return TRUE; |
| 5bd4f169 AM |
6906 | } |
| 6907 | ||
| 5bd4f169 AM |
6908 | /* If we are creating a shared library, we must presume that the |
| 6909 | only references to the symbol are via the global offset table. | |
| 6910 | For such cases we need not do anything here; the relocations will | |
| 6911 | be handled correctly by relocate_section. */ | |
| 6912 | if (info->shared) | |
| b34976b6 | 6913 | return TRUE; |
| 5bd4f169 | 6914 | |
| 65f38f15 AM |
6915 | /* If there are no references to this symbol that do not use the |
| 6916 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 6917 | if (!h->non_got_ref) |
| b34976b6 | 6918 | return TRUE; |
| 65f38f15 | 6919 | |
| b186458a JJ |
6920 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 6921 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 6922 | return TRUE; | |
| 6923 | ||
| f4656909 | 6924 | if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 | 6925 | { |
| f4656909 | 6926 | struct ppc_link_hash_entry * eh; |
| 6061a67d | 6927 | struct elf_dyn_relocs *p; |
| 65f38f15 | 6928 | |
| f4656909 AM |
6929 | eh = (struct ppc_link_hash_entry *) h; |
| 6930 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 6931 | { | |
| 6932 | s = p->sec->output_section; | |
| 6933 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 6934 | break; | |
| 6935 | } | |
| 6936 | ||
| 6937 | /* If we didn't find any dynamic relocs in read-only sections, then | |
| 6938 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 6939 | if (p == NULL) | |
| 6940 | { | |
| f5385ebf | 6941 | h->non_got_ref = 0; |
| f4656909 AM |
6942 | return TRUE; |
| 6943 | } | |
| 65f38f15 AM |
6944 | } |
| 6945 | ||
| 5d35169e | 6946 | if (h->plt.plist != NULL) |
| 97b639ba AM |
6947 | { |
| 6948 | /* We should never get here, but unfortunately there are versions | |
| 6949 | of gcc out there that improperly (for this ABI) put initialized | |
| 6950 | function pointers, vtable refs and suchlike in read-only | |
| 6951 | sections. Allow them to proceed, but warn that this might | |
| 6952 | break at runtime. */ | |
| 25f53a85 | 6953 | info->callbacks->einfo |
| bc30df16 | 6954 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 6955 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
6956 | h->root.root.string); |
| 6957 | } | |
| 5d35169e AM |
6958 | |
| 6959 | /* This is a reference to a symbol defined by a dynamic object which | |
| 6960 | is not a function. */ | |
| 6961 | ||
| 5bd4f169 AM |
6962 | /* We must allocate the symbol in our .dynbss section, which will |
| 6963 | become part of the .bss section of the executable. There will be | |
| 6964 | an entry for this symbol in the .dynsym section. The dynamic | |
| 6965 | object will contain position independent code, so all references | |
| 6966 | from the dynamic object to this symbol will go through the global | |
| 6967 | offset table. The dynamic linker will use the .dynsym entry to | |
| 6968 | determine the address it must put in the global offset table, so | |
| 6969 | both the dynamic object and the regular object will refer to the | |
| 6970 | same memory location for the variable. */ | |
| 5bd4f169 | 6971 | |
| 04c9666a AM |
6972 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 6973 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
6974 | runtime process image. We need to remember the offset into the |
| 6975 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 6976 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 6977 | { |
| eea6121a | 6978 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 6979 | h->needs_copy = 1; |
| 5bd4f169 AM |
6980 | } |
| 6981 | ||
| 4ce794b7 | 6982 | s = htab->dynbss; |
| 5bd4f169 | 6983 | |
| 027297b7 | 6984 | return _bfd_elf_adjust_dynamic_copy (h, s); |
| 5bd4f169 AM |
6985 | } |
| 6986 | ||
| e86ce104 AM |
6987 | /* If given a function descriptor symbol, hide both the function code |
| 6988 | sym and the descriptor. */ | |
| 6989 | static void | |
| 4ce794b7 AM |
6990 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 6991 | struct elf_link_hash_entry *h, | |
| 6992 | bfd_boolean force_local) | |
| e86ce104 | 6993 | { |
| 34814b9f | 6994 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
6995 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 6996 | ||
| 34814b9f AM |
6997 | eh = (struct ppc_link_hash_entry *) h; |
| 6998 | if (eh->is_func_descriptor) | |
| e86ce104 | 6999 | { |
| 34814b9f | 7000 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7001 | |
| 721956f4 | 7002 | if (fh == NULL) |
| d1329ca3 AM |
7003 | { |
| 7004 | const char *p, *q; | |
| 7005 | struct ppc_link_hash_table *htab; | |
| 7006 | char save; | |
| 7007 | ||
| 7008 | /* We aren't supposed to use alloca in BFD because on | |
| 7009 | systems which do not have alloca the version in libiberty | |
| 7010 | calls xmalloc, which might cause the program to crash | |
| 7011 | when it runs out of memory. This function doesn't have a | |
| 7012 | return status, so there's no way to gracefully return an | |
| 7013 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7014 | accessed; It's either a string in an ELF string table, |
| 7015 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7016 | |
| 34814b9f | 7017 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7018 | save = *p; |
| 7019 | *(char *) p = '.'; | |
| 7020 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7021 | if (htab == NULL) |
| 7022 | return; | |
| 7023 | ||
| 34814b9f AM |
7024 | fh = (struct ppc_link_hash_entry *) |
| 7025 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7026 | *(char *) p = save; |
| 7027 | ||
| 7028 | /* Unfortunately, if it so happens that the string we were | |
| 7029 | looking for was allocated immediately before this string, | |
| 7030 | then we overwrote the string terminator. That's the only | |
| 7031 | reason the lookup should fail. */ | |
| 7032 | if (fh == NULL) | |
| 7033 | { | |
| 34814b9f AM |
7034 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7035 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7036 | --q, --p; |
| 34814b9f AM |
7037 | if (q < eh->elf.root.root.string && *p == '.') |
| 7038 | fh = (struct ppc_link_hash_entry *) | |
| 7039 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7040 | } |
| 7041 | if (fh != NULL) | |
| 7042 | { | |
| 34814b9f AM |
7043 | eh->oh = fh; |
| 7044 | fh->oh = eh; | |
| d1329ca3 AM |
7045 | } |
| 7046 | } | |
| e86ce104 | 7047 | if (fh != NULL) |
| 34814b9f | 7048 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7049 | } |
| 7050 | } | |
| 7051 | ||
| 411e1bfb | 7052 | static bfd_boolean |
| 8843416a AM |
7053 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7054 | Elf_Internal_Sym **symp, | |
| 7055 | asection **symsecp, | |
| f961d9dd | 7056 | unsigned char **tls_maskp, |
| 8843416a AM |
7057 | Elf_Internal_Sym **locsymsp, |
| 7058 | unsigned long r_symndx, | |
| 7059 | bfd *ibfd) | |
| 411e1bfb | 7060 | { |
| 0ffa91dd | 7061 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7062 | |
| 7063 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7064 | { | |
| 7065 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7066 | struct elf_link_hash_entry *h; | |
| 7067 | ||
| 7068 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7069 | h = elf_follow_link (h); |
| 411e1bfb AM |
7070 | |
| 7071 | if (hp != NULL) | |
| 7072 | *hp = h; | |
| 7073 | ||
| 7074 | if (symp != NULL) | |
| 7075 | *symp = NULL; | |
| 7076 | ||
| 7077 | if (symsecp != NULL) | |
| 7078 | { | |
| 7079 | asection *symsec = NULL; | |
| 7080 | if (h->root.type == bfd_link_hash_defined | |
| 7081 | || h->root.type == bfd_link_hash_defweak) | |
| 7082 | symsec = h->root.u.def.section; | |
| 7083 | *symsecp = symsec; | |
| 7084 | } | |
| 7085 | ||
| e7b938ca | 7086 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7087 | { |
| 7088 | struct ppc_link_hash_entry *eh; | |
| 7089 | ||
| 7090 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7091 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7092 | } |
| 7093 | } | |
| 7094 | else | |
| 7095 | { | |
| 7096 | Elf_Internal_Sym *sym; | |
| 7097 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7098 | ||
| 7099 | if (locsyms == NULL) | |
| 7100 | { | |
| 7101 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7102 | if (locsyms == NULL) | |
| 7103 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7104 | symtab_hdr->sh_info, | |
| 7105 | 0, NULL, NULL, NULL); | |
| 7106 | if (locsyms == NULL) | |
| 7107 | return FALSE; | |
| 7108 | *locsymsp = locsyms; | |
| 7109 | } | |
| 7110 | sym = locsyms + r_symndx; | |
| 7111 | ||
| 7112 | if (hp != NULL) | |
| 7113 | *hp = NULL; | |
| 7114 | ||
| 7115 | if (symp != NULL) | |
| 7116 | *symp = sym; | |
| 7117 | ||
| 7118 | if (symsecp != NULL) | |
| cb33740c | 7119 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7120 | |
| e7b938ca | 7121 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7122 | { |
| 7123 | struct got_entry **lgot_ents; | |
| f961d9dd | 7124 | unsigned char *tls_mask; |
| 411e1bfb | 7125 | |
| e7b938ca | 7126 | tls_mask = NULL; |
| 411e1bfb AM |
7127 | lgot_ents = elf_local_got_ents (ibfd); |
| 7128 | if (lgot_ents != NULL) | |
| 7129 | { | |
| e054468f AM |
7130 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7131 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7132 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7133 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7134 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7135 | } |
| e7b938ca | 7136 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7137 | } |
| 7138 | } | |
| 7139 | return TRUE; | |
| 7140 | } | |
| 7141 | ||
| e7b938ca | 7142 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7143 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7144 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7145 | |
| 7146 | static int | |
| f961d9dd | 7147 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7148 | unsigned long *toc_symndx, |
| 7149 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7150 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7151 | const Elf_Internal_Rela *rel, |
| 7152 | bfd *ibfd) | |
| 411e1bfb AM |
7153 | { |
| 7154 | unsigned long r_symndx; | |
| 0d4792f7 | 7155 | int next_r; |
| 411e1bfb AM |
7156 | struct elf_link_hash_entry *h; |
| 7157 | Elf_Internal_Sym *sym; | |
| 7158 | asection *sec; | |
| 7159 | bfd_vma off; | |
| 7160 | ||
| 7161 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7162 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7163 | return 0; |
| 411e1bfb | 7164 | |
| e7b938ca | 7165 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7166 | || sec == NULL |
| 6bee8834 | 7167 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7168 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7169 | return 1; |
| 411e1bfb AM |
7170 | |
| 7171 | /* Look inside a TOC section too. */ | |
| 7172 | if (h != NULL) | |
| 7173 | { | |
| 7174 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7175 | off = h->root.u.def.value; | |
| 7176 | } | |
| 7177 | else | |
| 7178 | off = sym->st_value; | |
| 7179 | off += rel->r_addend; | |
| 7180 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7181 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7182 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7183 | if (toc_symndx != NULL) |
| 7184 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7185 | if (toc_addend != NULL) |
| 7186 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7187 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7188 | return 0; | |
| 854b41e7 | 7189 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7190 | && (next_r == -1 || next_r == -2)) |
| 7191 | return 1 - next_r; | |
| 951fd09b | 7192 | return 1; |
| 411e1bfb AM |
7193 | } |
| 7194 | ||
| 3b421ab3 AM |
7195 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7196 | ||
| 7197 | static struct tocsave_entry * | |
| 7198 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7199 | enum insert_option insert, | |
| 7200 | Elf_Internal_Sym **local_syms, | |
| 7201 | const Elf_Internal_Rela *irela, | |
| 7202 | bfd *ibfd) | |
| 7203 | { | |
| 7204 | unsigned long r_indx; | |
| 7205 | struct elf_link_hash_entry *h; | |
| 7206 | Elf_Internal_Sym *sym; | |
| 7207 | struct tocsave_entry ent, *p; | |
| 7208 | hashval_t hash; | |
| 7209 | struct tocsave_entry **slot; | |
| 7210 | ||
| 7211 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7212 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7213 | return NULL; | |
| 7214 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7215 | { | |
| 7216 | (*_bfd_error_handler) | |
| 7217 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7218 | return NULL; | |
| 7219 | } | |
| 7220 | ||
| 7221 | if (h != NULL) | |
| 7222 | ent.offset = h->root.u.def.value; | |
| 7223 | else | |
| 7224 | ent.offset = sym->st_value; | |
| 7225 | ent.offset += irela->r_addend; | |
| 7226 | ||
| 7227 | hash = tocsave_htab_hash (&ent); | |
| 7228 | slot = ((struct tocsave_entry **) | |
| 7229 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7230 | if (slot == NULL) | |
| 7231 | return NULL; | |
| 7232 | ||
| 7233 | if (*slot == NULL) | |
| 7234 | { | |
| 7235 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7236 | if (p == NULL) | |
| 7237 | return NULL; | |
| 7238 | *p = ent; | |
| 7239 | *slot = p; | |
| 7240 | } | |
| 7241 | return *slot; | |
| 7242 | } | |
| 7243 | ||
| 754021d0 | 7244 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7245 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7246 | |
| 7247 | static bfd_boolean | |
| 7248 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7249 | { | |
| 7250 | struct ppc_link_hash_entry *eh; | |
| 7251 | asection *sym_sec; | |
| 74f0fb50 | 7252 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7253 | |
| 7254 | if (h->root.type == bfd_link_hash_indirect) | |
| 7255 | return TRUE; | |
| 7256 | ||
| 754021d0 AM |
7257 | if (h->root.type != bfd_link_hash_defined |
| 7258 | && h->root.type != bfd_link_hash_defweak) | |
| 7259 | return TRUE; | |
| 7260 | ||
| 7261 | eh = (struct ppc_link_hash_entry *) h; | |
| 7262 | if (eh->adjust_done) | |
| 7263 | return TRUE; | |
| 7264 | ||
| 7265 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7266 | opd = get_opd_info (sym_sec); |
| 7267 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7268 | { |
| 74f0fb50 | 7269 | long adjust = opd->adjust[eh->elf.root.u.def.value / 8]; |
| 4025353c AM |
7270 | if (adjust == -1) |
| 7271 | { | |
| 7272 | /* This entry has been deleted. */ | |
| b3fac117 | 7273 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7274 | if (dsec == NULL) |
| 7275 | { | |
| 7276 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7277 | if (discarded_section (dsec)) |
| 81688140 | 7278 | { |
| b3fac117 | 7279 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7280 | break; |
| 7281 | } | |
| 7282 | } | |
| 4025353c | 7283 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7284 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7285 | } |
| 7286 | else | |
| 7287 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7288 | eh->adjust_done = 1; |
| 7289 | } | |
| 7290 | return TRUE; | |
| 7291 | } | |
| 7292 | ||
| 8c1d1bb8 | 7293 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7294 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7295 | have already been determined. */ |
| 7296 | ||
| 7297 | static bfd_boolean | |
| 7298 | dec_dynrel_count (bfd_vma r_info, | |
| 7299 | asection *sec, | |
| 7300 | struct bfd_link_info *info, | |
| 7301 | Elf_Internal_Sym **local_syms, | |
| 7302 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7303 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7304 | { |
| 7305 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7306 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7307 | |
| 7308 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7309 | should be kept in sync with the code in check_relocs. */ | |
| 7310 | r_type = ELF64_R_TYPE (r_info); | |
| 7311 | switch (r_type) | |
| 7312 | { | |
| 7313 | default: | |
| 7314 | return TRUE; | |
| 7315 | ||
| 7316 | case R_PPC64_TPREL16: | |
| 7317 | case R_PPC64_TPREL16_LO: | |
| 7318 | case R_PPC64_TPREL16_HI: | |
| 7319 | case R_PPC64_TPREL16_HA: | |
| 7320 | case R_PPC64_TPREL16_DS: | |
| 7321 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7322 | case R_PPC64_TPREL16_HIGH: |
| 7323 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7324 | case R_PPC64_TPREL16_HIGHER: |
| 7325 | case R_PPC64_TPREL16_HIGHERA: | |
| 7326 | case R_PPC64_TPREL16_HIGHEST: | |
| 7327 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7328 | if (!info->shared) | |
| 7329 | return TRUE; | |
| 7330 | ||
| 7331 | case R_PPC64_TPREL64: | |
| 7332 | case R_PPC64_DTPMOD64: | |
| 7333 | case R_PPC64_DTPREL64: | |
| 7334 | case R_PPC64_ADDR64: | |
| 7335 | case R_PPC64_REL30: | |
| 7336 | case R_PPC64_REL32: | |
| 7337 | case R_PPC64_REL64: | |
| 7338 | case R_PPC64_ADDR14: | |
| 7339 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7340 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7341 | case R_PPC64_ADDR16: | |
| 7342 | case R_PPC64_ADDR16_DS: | |
| 7343 | case R_PPC64_ADDR16_HA: | |
| 7344 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7345 | case R_PPC64_ADDR16_HIGH: |
| 7346 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7347 | case R_PPC64_ADDR16_HIGHER: |
| 7348 | case R_PPC64_ADDR16_HIGHERA: | |
| 7349 | case R_PPC64_ADDR16_HIGHEST: | |
| 7350 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7351 | case R_PPC64_ADDR16_LO: | |
| 7352 | case R_PPC64_ADDR16_LO_DS: | |
| 7353 | case R_PPC64_ADDR24: | |
| 7354 | case R_PPC64_ADDR32: | |
| 7355 | case R_PPC64_UADDR16: | |
| 7356 | case R_PPC64_UADDR32: | |
| 7357 | case R_PPC64_UADDR64: | |
| 7358 | case R_PPC64_TOC: | |
| 7359 | break; | |
| 7360 | } | |
| 7361 | ||
| 7362 | if (local_syms != NULL) | |
| 7363 | { | |
| 7364 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7365 | bfd *ibfd = sec->owner; |
| 7366 | ||
| 7367 | r_symndx = ELF64_R_SYM (r_info); | |
| 7368 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7369 | return FALSE; | |
| 7370 | } | |
| 7371 | ||
| 7372 | if ((info->shared | |
| 1d483afe | 7373 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7374 | || (h != NULL |
| 198f1157 | 7375 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7376 | || h->root.type == bfd_link_hash_defweak |
| 7377 | || !h->def_regular)))) | |
| 7378 | || (ELIMINATE_COPY_RELOCS | |
| 7379 | && !info->shared | |
| 7380 | && h != NULL | |
| 7381 | && (h->root.type == bfd_link_hash_defweak | |
| 7382 | || !h->def_regular))) | |
| 7383 | ; | |
| 7384 | else | |
| 7385 | return TRUE; | |
| 7386 | ||
| 7387 | if (h != NULL) | |
| 6edfbbad | 7388 | { |
| 19e08130 AM |
7389 | struct elf_dyn_relocs *p; |
| 7390 | struct elf_dyn_relocs **pp; | |
| 7391 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7392 | ||
| 7393 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7394 | with local syms for a given section. Also, symbol flags are | |
| 7395 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7396 | report a dynreloc miscount. */ | |
| 7397 | if (*pp == NULL && info->gc_sections) | |
| 7398 | return TRUE; | |
| 7399 | ||
| 7400 | while ((p = *pp) != NULL) | |
| 60124e18 | 7401 | { |
| 19e08130 AM |
7402 | if (p->sec == sec) |
| 7403 | { | |
| 7404 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7405 | p->pc_count -= 1; | |
| 7406 | p->count -= 1; | |
| 7407 | if (p->count == 0) | |
| 7408 | *pp = p->next; | |
| 7409 | return TRUE; | |
| 7410 | } | |
| 7411 | pp = &p->next; | |
| 60124e18 | 7412 | } |
| 6edfbbad | 7413 | } |
| 19e08130 AM |
7414 | else |
| 7415 | { | |
| 7416 | struct ppc_dyn_relocs *p; | |
| 7417 | struct ppc_dyn_relocs **pp; | |
| 7418 | void *vpp; | |
| 7419 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7420 | |
| 19e08130 AM |
7421 | if (local_syms == NULL) |
| 7422 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7423 | if (sym_sec == NULL) | |
| 7424 | sym_sec = sec; | |
| c57da1a7 | 7425 | |
| 19e08130 AM |
7426 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7427 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7428 | ||
| 7429 | if (*pp == NULL && info->gc_sections) | |
| 7430 | return TRUE; | |
| 7431 | ||
| 7432 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7433 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7434 | { |
| 19e08130 AM |
7435 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7436 | { | |
| 7437 | p->count -= 1; | |
| 7438 | if (p->count == 0) | |
| 7439 | *pp = p->next; | |
| 7440 | return TRUE; | |
| 7441 | } | |
| 7442 | pp = &p->next; | |
| 8c1d1bb8 | 7443 | } |
| 8c1d1bb8 AM |
7444 | } |
| 7445 | ||
| 8de848d8 | 7446 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7447 | sec->owner, sec); |
| 8c1d1bb8 AM |
7448 | bfd_set_error (bfd_error_bad_value); |
| 7449 | return FALSE; | |
| 7450 | } | |
| 7451 | ||
| 754021d0 AM |
7452 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7453 | only remove those associated with functions in discarded link-once | |
| 7454 | sections, or weakly defined functions that have been overridden. It | |
| 7455 | would be possible to remove many more entries for statically linked | |
| 7456 | applications. */ | |
| 7457 | ||
| b34976b6 | 7458 | bfd_boolean |
| 33c0ec9d | 7459 | ppc64_elf_edit_opd (struct bfd_link_info *info, bfd_boolean non_overlapping) |
| 1e2f5b6e AM |
7460 | { |
| 7461 | bfd *ibfd; | |
| 754021d0 | 7462 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7463 | asection *need_pad = NULL; |
| 1e2f5b6e | 7464 | |
| 411e1bfb | 7465 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 1e2f5b6e AM |
7466 | { |
| 7467 | asection *sec; | |
| 7468 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7469 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7470 | Elf_Internal_Sym *local_syms; |
| 1e2f5b6e | 7471 | bfd_vma offset; |
| 74f0fb50 | 7472 | struct _opd_sec_data *opd; |
| 3f764659 JJ |
7473 | bfd_boolean need_edit, add_aux_fields; |
| 7474 | bfd_size_type cnt_16b = 0; | |
| 1e2f5b6e | 7475 | |
| 854b41e7 AM |
7476 | if (!is_ppc64_elf (ibfd)) |
| 7477 | continue; | |
| 7478 | ||
| 1e2f5b6e | 7479 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7480 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7481 | continue; |
| 7482 | ||
| dbaa2011 | 7483 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7484 | continue; |
| 7485 | ||
| 1e2f5b6e AM |
7486 | if (sec->output_section == bfd_abs_section_ptr) |
| 7487 | continue; | |
| 7488 | ||
| 7489 | /* Look through the section relocs. */ | |
| 7490 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7491 | continue; | |
| 7492 | ||
| 6cdc0ccc | 7493 | local_syms = NULL; |
| 0ffa91dd | 7494 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7495 | |
| 7496 | /* Read the relocations. */ | |
| 4ce794b7 | 7497 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7498 | info->keep_memory); |
| 1e2f5b6e | 7499 | if (relstart == NULL) |
| b34976b6 | 7500 | return FALSE; |
| 1e2f5b6e AM |
7501 | |
| 7502 | /* First run through the relocs to check they are sane, and to | |
| 7503 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7504 | need_edit = FALSE; |
| 3f764659 | 7505 | need_pad = sec; |
| 1e2f5b6e AM |
7506 | offset = 0; |
| 7507 | relend = relstart + sec->reloc_count; | |
| 50bc7936 | 7508 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7509 | { |
| 04c9666a | 7510 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7511 | unsigned long r_symndx; |
| 7512 | asection *sym_sec; | |
| 7513 | struct elf_link_hash_entry *h; | |
| 7514 | Elf_Internal_Sym *sym; | |
| 7515 | ||
| 3f764659 | 7516 | /* .opd contains a regular array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7517 | only interested in the reloc pointing to a function entry |
| 7518 | point. */ | |
| 50bc7936 AM |
7519 | if (rel->r_offset != offset |
| 7520 | || rel + 1 >= relend | |
| 7521 | || (rel + 1)->r_offset != offset + 8) | |
| 1e2f5b6e AM |
7522 | { |
| 7523 | /* If someone messes with .opd alignment then after a | |
| 7524 | "ld -r" we might have padding in the middle of .opd. | |
| 7525 | Also, there's nothing to prevent someone putting | |
| 7526 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7527 | optimization for them! */ |
| 3f764659 | 7528 | broken_opd: |
| 1e2f5b6e | 7529 | (*_bfd_error_handler) |
| d003868e | 7530 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| b34976b6 | 7531 | need_edit = FALSE; |
| 1e2f5b6e AM |
7532 | break; |
| 7533 | } | |
| 7534 | ||
| 50bc7936 AM |
7535 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7536 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7537 | { | |
| 7538 | (*_bfd_error_handler) | |
| d003868e AM |
7539 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7540 | ibfd, r_type); | |
| 50bc7936 AM |
7541 | need_edit = FALSE; |
| 7542 | break; | |
| 7543 | } | |
| 7544 | ||
| 1e2f5b6e | 7545 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7546 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7547 | r_symndx, ibfd)) | |
| 50bc7936 | 7548 | goto error_ret; |
| 1e2f5b6e AM |
7549 | |
| 7550 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7551 | { | |
| 411e1bfb AM |
7552 | const char *sym_name; |
| 7553 | if (h != NULL) | |
| 7554 | sym_name = h->root.root.string; | |
| 7555 | else | |
| 26c61ae5 L |
7556 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7557 | sym_sec); | |
| 411e1bfb | 7558 | |
| 1e2f5b6e | 7559 | (*_bfd_error_handler) |
| d003868e AM |
7560 | (_("%B: undefined sym `%s' in .opd section"), |
| 7561 | ibfd, sym_name); | |
| b34976b6 | 7562 | need_edit = FALSE; |
| 1e2f5b6e AM |
7563 | break; |
| 7564 | } | |
| 7565 | ||
| 51020317 AM |
7566 | /* opd entries are always for functions defined in the |
| 7567 | current input bfd. If the symbol isn't defined in the | |
| 7568 | input bfd, then we won't be using the function in this | |
| 7569 | bfd; It must be defined in a linkonce section in another | |
| 7570 | bfd, or is weak. It's also possible that we are | |
| 7571 | discarding the function due to a linker script /DISCARD/, | |
| 7572 | which we test for via the output_section. */ | |
| 7573 | if (sym_sec->owner != ibfd | |
| 7574 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7575 | need_edit = TRUE; |
| 1e2f5b6e | 7576 | |
| 50bc7936 | 7577 | rel += 2; |
| 3f764659 JJ |
7578 | if (rel == relend |
| 7579 | || (rel + 1 == relend && rel->r_offset == offset + 16)) | |
| 7580 | { | |
| 7581 | if (sec->size == offset + 24) | |
| 7582 | { | |
| 7583 | need_pad = NULL; | |
| 7584 | break; | |
| 7585 | } | |
| 7586 | if (rel == relend && sec->size == offset + 16) | |
| 7587 | { | |
| 7588 | cnt_16b++; | |
| 7589 | break; | |
| 7590 | } | |
| 7591 | goto broken_opd; | |
| 7592 | } | |
| 7593 | ||
| 7594 | if (rel->r_offset == offset + 24) | |
| 7595 | offset += 24; | |
| 7596 | else if (rel->r_offset != offset + 16) | |
| 7597 | goto broken_opd; | |
| 7598 | else if (rel + 1 < relend | |
| 7599 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7600 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7601 | { | |
| 7602 | offset += 16; | |
| 7603 | cnt_16b++; | |
| 7604 | } | |
| 7605 | else if (rel + 2 < relend | |
| 7606 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64 | |
| 7607 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC) | |
| 7608 | { | |
| 7609 | offset += 24; | |
| 7610 | rel += 1; | |
| 7611 | } | |
| 7612 | else | |
| 7613 | goto broken_opd; | |
| 1e2f5b6e AM |
7614 | } |
| 7615 | ||
| 3f764659 JJ |
7616 | add_aux_fields = non_overlapping && cnt_16b > 0; |
| 7617 | ||
| 7618 | if (need_edit || add_aux_fields) | |
| 1e2f5b6e AM |
7619 | { |
| 7620 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7621 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7622 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7623 | bfd_byte *new_contents; |
| b34976b6 | 7624 | bfd_boolean skip; |
| 3f764659 | 7625 | long opd_ent_size; |
| 74f0fb50 AM |
7626 | bfd_size_type amt; |
| 7627 | ||
| 983bddc8 | 7628 | new_contents = NULL; |
| 74f0fb50 AM |
7629 | amt = sec->size * sizeof (long) / 8; |
| 7630 | opd = &ppc64_elf_section_data (sec)->u.opd; | |
| 33c0ec9d | 7631 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7632 | if (opd->adjust == NULL) |
| 7633 | return FALSE; | |
| 7634 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7635 | |
| 7636 | /* This seems a waste of time as input .opd sections are all | |
| 7637 | zeros as generated by gcc, but I suppose there's no reason | |
| 7638 | this will always be so. We might start putting something in | |
| 7639 | the third word of .opd entries. */ | |
| 7640 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7641 | { | |
| eea6121a AM |
7642 | bfd_byte *loc; |
| 7643 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7644 | { |
| eea6121a AM |
7645 | if (loc != NULL) |
| 7646 | free (loc); | |
| 50bc7936 | 7647 | error_ret: |
| 6cdc0ccc AM |
7648 | if (local_syms != NULL |
| 7649 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7650 | free (local_syms); | |
| 6cdc0ccc AM |
7651 | if (elf_section_data (sec)->relocs != relstart) |
| 7652 | free (relstart); | |
| b34976b6 | 7653 | return FALSE; |
| 6cdc0ccc | 7654 | } |
| 1e2f5b6e AM |
7655 | sec->contents = loc; |
| 7656 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7657 | } | |
| 7658 | ||
| 7659 | elf_section_data (sec)->relocs = relstart; | |
| 7660 | ||
| 3f764659 | 7661 | new_contents = sec->contents; |
| 3f764659 JJ |
7662 | if (add_aux_fields) |
| 7663 | { | |
| 7664 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7665 | if (new_contents == NULL) | |
| 7666 | return FALSE; | |
| 7667 | need_pad = FALSE; | |
| 3f764659 | 7668 | } |
| b4f4e59f AM |
7669 | wptr = new_contents; |
| 7670 | rptr = sec->contents; | |
| 3f764659 | 7671 | |
| 1e2f5b6e | 7672 | write_rel = relstart; |
| b34976b6 | 7673 | skip = FALSE; |
| 1e2f5b6e | 7674 | offset = 0; |
| 3f764659 | 7675 | opd_ent_size = 0; |
| 1e2f5b6e AM |
7676 | for (rel = relstart; rel < relend; rel++) |
| 7677 | { | |
| 50bc7936 AM |
7678 | unsigned long r_symndx; |
| 7679 | asection *sym_sec; | |
| 7680 | struct elf_link_hash_entry *h; | |
| 7681 | Elf_Internal_Sym *sym; | |
| 7682 | ||
| 7683 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7684 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7685 | r_symndx, ibfd)) |
| 50bc7936 AM |
7686 | goto error_ret; |
| 7687 | ||
| 1e2f5b6e AM |
7688 | if (rel->r_offset == offset) |
| 7689 | { | |
| 50bc7936 | 7690 | struct ppc_link_hash_entry *fdh = NULL; |
| 3f764659 JJ |
7691 | |
| 7692 | /* See if the .opd entry is full 24 byte or | |
| 7693 | 16 byte (with fd_aux entry overlapped with next | |
| 7694 | fd_func). */ | |
| 7695 | opd_ent_size = 24; | |
| 7696 | if ((rel + 2 == relend && sec->size == offset + 16) | |
| 7697 | || (rel + 3 < relend | |
| 7698 | && rel[2].r_offset == offset + 16 | |
| 7699 | && rel[3].r_offset == offset + 24 | |
| 7700 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64 | |
| 7701 | && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC)) | |
| 7702 | opd_ent_size = 16; | |
| 7703 | ||
| 4025353c AM |
7704 | if (h != NULL |
| 7705 | && h->root.root.string[0] == '.') | |
| c4f68ce3 | 7706 | { |
| 4dfe6ac6 NC |
7707 | struct ppc_link_hash_table *htab; |
| 7708 | ||
| 7709 | htab = ppc_hash_table (info); | |
| 7710 | if (htab != NULL) | |
| 7711 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, | |
| 7712 | htab); | |
| c4f68ce3 AM |
7713 | if (fdh != NULL |
| 7714 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 7715 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 7716 | fdh = NULL; | |
| 7717 | } | |
| 1e2f5b6e | 7718 | |
| 51020317 AM |
7719 | skip = (sym_sec->owner != ibfd |
| 7720 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| a4aa0fb7 AM |
7721 | if (skip) |
| 7722 | { | |
| 4025353c | 7723 | if (fdh != NULL && sym_sec->owner == ibfd) |
| a4aa0fb7 AM |
7724 | { |
| 7725 | /* Arrange for the function descriptor sym | |
| 7726 | to be dropped. */ | |
| d6fe2dc1 AM |
7727 | fdh->elf.root.u.def.value = 0; |
| 7728 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 7729 | } |
| 74f0fb50 | 7730 | opd->adjust[rel->r_offset / 8] = -1; |
| a4aa0fb7 AM |
7731 | } |
| 7732 | else | |
| 1e2f5b6e AM |
7733 | { |
| 7734 | /* We'll be keeping this opd entry. */ | |
| 7735 | ||
| 4025353c | 7736 | if (fdh != NULL) |
| 1e2f5b6e | 7737 | { |
| 754021d0 AM |
7738 | /* Redefine the function descriptor symbol to |
| 7739 | this location in the opd section. It is | |
| 7740 | necessary to update the value here rather | |
| 7741 | than using an array of adjustments as we do | |
| 7742 | for local symbols, because various places | |
| 7743 | in the generic ELF code use the value | |
| 7744 | stored in u.def.value. */ | |
| 3f764659 | 7745 | fdh->elf.root.u.def.value = wptr - new_contents; |
| 754021d0 | 7746 | fdh->adjust_done = 1; |
| 1e2f5b6e | 7747 | } |
| 754021d0 AM |
7748 | |
| 7749 | /* Local syms are a bit tricky. We could | |
| 7750 | tweak them as they can be cached, but | |
| 7751 | we'd need to look through the local syms | |
| 7752 | for the function descriptor sym which we | |
| 7753 | don't have at the moment. So keep an | |
| 7754 | array of adjustments. */ | |
| 74f0fb50 | 7755 | opd->adjust[rel->r_offset / 8] |
| 3f764659 | 7756 | = (wptr - new_contents) - (rptr - sec->contents); |
| 1e2f5b6e AM |
7757 | |
| 7758 | if (wptr != rptr) | |
| 3f764659 JJ |
7759 | memcpy (wptr, rptr, opd_ent_size); |
| 7760 | wptr += opd_ent_size; | |
| 7761 | if (add_aux_fields && opd_ent_size == 16) | |
| 7762 | { | |
| 7763 | memset (wptr, '\0', 8); | |
| 7764 | wptr += 8; | |
| 7765 | } | |
| 1e2f5b6e | 7766 | } |
| 3f764659 JJ |
7767 | rptr += opd_ent_size; |
| 7768 | offset += opd_ent_size; | |
| 1e2f5b6e AM |
7769 | } |
| 7770 | ||
| 50bc7936 AM |
7771 | if (skip) |
| 7772 | { | |
| 60124e18 AM |
7773 | if (!NO_OPD_RELOCS |
| 7774 | && !info->relocatable | |
| 18d944df | 7775 | && !dec_dynrel_count (rel->r_info, sec, info, |
| 19e08130 | 7776 | NULL, h, sym)) |
| 8c1d1bb8 | 7777 | goto error_ret; |
| 50bc7936 AM |
7778 | } |
| 7779 | else | |
| 1e2f5b6e | 7780 | { |
| 50bc7936 AM |
7781 | /* We need to adjust any reloc offsets to point to the |
| 7782 | new opd entries. While we're at it, we may as well | |
| 7783 | remove redundant relocs. */ | |
| 74f0fb50 | 7784 | rel->r_offset += opd->adjust[(offset - opd_ent_size) / 8]; |
| 1e2f5b6e AM |
7785 | if (write_rel != rel) |
| 7786 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 7787 | ++write_rel; | |
| 7788 | } | |
| 7789 | } | |
| 7790 | ||
| 3f764659 | 7791 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 7792 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
7793 | if (add_aux_fields) |
| 7794 | { | |
| 7795 | free (sec->contents); | |
| 7796 | sec->contents = new_contents; | |
| 7797 | } | |
| 7798 | ||
| 05bf9422 | 7799 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 7800 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
7801 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 7802 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 7803 | some_edited = TRUE; |
| 1e2f5b6e | 7804 | } |
| 6cdc0ccc | 7805 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 7806 | free (relstart); |
| 6cdc0ccc | 7807 | |
| 411e1bfb AM |
7808 | if (local_syms != NULL |
| 7809 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7810 | { | |
| 7811 | if (!info->keep_memory) | |
| 7812 | free (local_syms); | |
| 7813 | else | |
| 7814 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 7815 | } | |
| 7816 | } | |
| 7817 | ||
| 754021d0 AM |
7818 | if (some_edited) |
| 7819 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 7820 | ||
| 3f764659 JJ |
7821 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 7822 | long, add a 8 byte padding after it. */ | |
| 7823 | if (need_pad != NULL && !info->relocatable) | |
| 7824 | { | |
| 7825 | bfd_byte *p; | |
| 7826 | ||
| 7827 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 7828 | { | |
| 7829 | BFD_ASSERT (need_pad->size > 0); | |
| 7830 | ||
| 7831 | p = bfd_malloc (need_pad->size + 8); | |
| 7832 | if (p == NULL) | |
| 7833 | return FALSE; | |
| 699733f6 | 7834 | |
| 3f764659 JJ |
7835 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 7836 | p, 0, need_pad->size)) | |
| 7837 | return FALSE; | |
| 7838 | ||
| 7839 | need_pad->contents = p; | |
| 7840 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7841 | } | |
| 7842 | else | |
| 7843 | { | |
| 7844 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 7845 | if (p == NULL) | |
| 7846 | return FALSE; | |
| 7847 | ||
| 7848 | need_pad->contents = p; | |
| 7849 | } | |
| 7850 | ||
| 7851 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 7852 | need_pad->size += 8; | |
| 7853 | } | |
| 7854 | ||
| 411e1bfb AM |
7855 | return TRUE; |
| 7856 | } | |
| 7857 | ||
| e1918d23 | 7858 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 7859 | |
| e1918d23 | 7860 | asection * |
| 33c0ec9d AM |
7861 | ppc64_elf_tls_setup (struct bfd_link_info *info, |
| 7862 | int no_tls_get_addr_opt, | |
| 7863 | int *no_multi_toc) | |
| 411e1bfb | 7864 | { |
| 411e1bfb AM |
7865 | struct ppc_link_hash_table *htab; |
| 7866 | ||
| 411e1bfb | 7867 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
7868 | if (htab == NULL) |
| 7869 | return NULL; | |
| 7870 | ||
| ee67d69a AM |
7871 | if (abiversion (info->output_bfd) == 1) |
| 7872 | htab->opd_abi = 1; | |
| 7873 | ||
| 33c0ec9d AM |
7874 | if (*no_multi_toc) |
| 7875 | htab->do_multi_toc = 0; | |
| 7876 | else if (!htab->do_multi_toc) | |
| 7877 | *no_multi_toc = 1; | |
| 7878 | ||
| 3a71aa26 AM |
7879 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 7880 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 7881 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
7882 | /* Move dynamic linking info to the function descriptor sym. */ |
| 7883 | if (htab->tls_get_addr != NULL) | |
| 7884 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
7885 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 7886 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 7887 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
7888 | if (!no_tls_get_addr_opt) |
| 7889 | { | |
| 7890 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 7891 | ||
| 7892 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 7893 | FALSE, FALSE, TRUE); | |
| 7894 | if (opt != NULL) | |
| 7895 | func_desc_adjust (opt, info); | |
| 7896 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 7897 | FALSE, FALSE, TRUE); | |
| 7898 | if (opt_fd != NULL | |
| 7899 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 7900 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 7901 | { | |
| 7902 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 7903 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 7904 | be calling __tls_get_addr via a plt call stub, then | |
| 7905 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 7906 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 7907 | if (htab->elf.dynamic_sections_created | |
| 7908 | && tga_fd != NULL | |
| 7909 | && (tga_fd->type == STT_FUNC | |
| 7910 | || tga_fd->needs_plt) | |
| 7911 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 7912 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 7913 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 7914 | { | |
| 7915 | struct plt_entry *ent; | |
| 7916 | ||
| 7917 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 7918 | if (ent->plt.refcount > 0) | |
| 7919 | break; | |
| 7920 | if (ent != NULL) | |
| 7921 | { | |
| 7922 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 7923 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 7924 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 7925 | if (opt_fd->dynindx != -1) | |
| 7926 | { | |
| 7927 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 7928 | opt_fd->dynindx = -1; | |
| 7929 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 7930 | opt_fd->dynstr_index); | |
| 7931 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 7932 | return NULL; |
| a7f2871e AM |
7933 | } |
| 7934 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 7935 | tga = &htab->tls_get_addr->elf; | |
| 7936 | if (opt != NULL && tga != NULL) | |
| 7937 | { | |
| 7938 | tga->root.type = bfd_link_hash_indirect; | |
| 7939 | tga->root.u.i.link = &opt->root; | |
| 7940 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 7941 | _bfd_elf_link_hash_hide_symbol (info, opt, | |
| 7942 | tga->forced_local); | |
| 7943 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 7944 | } | |
| 7945 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 7946 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 7947 | if (htab->tls_get_addr != NULL) | |
| 7948 | { | |
| 7949 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 7950 | htab->tls_get_addr->is_func = 1; | |
| 7951 | } | |
| 7952 | } | |
| 7953 | } | |
| 7954 | } | |
| 7955 | else | |
| 7956 | no_tls_get_addr_opt = TRUE; | |
| 7957 | } | |
| 7958 | htab->no_tls_get_addr_opt = no_tls_get_addr_opt; | |
| 33c0ec9d | 7959 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 7960 | } |
| 8387904d | 7961 | |
| 3a71aa26 AM |
7962 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 7963 | HASH1 or HASH2. */ | |
| 8387904d | 7964 | |
| 3a71aa26 AM |
7965 | static bfd_boolean |
| 7966 | branch_reloc_hash_match (const bfd *ibfd, | |
| 7967 | const Elf_Internal_Rela *rel, | |
| 7968 | const struct ppc_link_hash_entry *hash1, | |
| 7969 | const struct ppc_link_hash_entry *hash2) | |
| 7970 | { | |
| 7971 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 7972 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 7973 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7974 | ||
| e054468f | 7975 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 7976 | { |
| 3a71aa26 AM |
7977 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 7978 | struct elf_link_hash_entry *h; | |
| 8387904d | 7979 | |
| 3a71aa26 | 7980 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 7981 | h = elf_follow_link (h); |
| 3a71aa26 AM |
7982 | if (h == &hash1->elf || h == &hash2->elf) |
| 7983 | return TRUE; | |
| a48ebf4d | 7984 | } |
| 3a71aa26 | 7985 | return FALSE; |
| 951fd09b | 7986 | } |
| 411e1bfb | 7987 | |
| 951fd09b AM |
7988 | /* Run through all the TLS relocs looking for optimization |
| 7989 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 7990 | a preliminary section layout so that we know the TLS segment | |
| 7991 | offsets. We can't optimize earlier because some optimizations need | |
| 7992 | to know the tp offset, and we need to optimize before allocating | |
| 7993 | dynamic relocations. */ | |
| 7994 | ||
| 7995 | bfd_boolean | |
| 33c0ec9d | 7996 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
7997 | { |
| 7998 | bfd *ibfd; | |
| 7999 | asection *sec; | |
| 8000 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8001 | unsigned char *toc_ref; |
| 102890f0 | 8002 | int pass; |
| 951fd09b | 8003 | |
| 1d483afe | 8004 | if (info->relocatable || !info->executable) |
| 411e1bfb AM |
8005 | return TRUE; |
| 8006 | ||
| 951fd09b | 8007 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8008 | if (htab == NULL) |
| 8009 | return FALSE; | |
| 8010 | ||
| 663a1470 AM |
8011 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8012 | entries involved with tls relocs, and check that tls relocs | |
| 8013 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8014 | such a call. If they are not, we can't do any tls optimization. | |
| 8015 | On the second pass twiddle tls_mask flags to notify | |
| 8016 | relocate_section that optimization can be done, and adjust got | |
| 8017 | and plt refcounts. */ | |
| 8018 | toc_ref = NULL; | |
| 8019 | for (pass = 0; pass < 2; ++pass) | |
| 8020 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 8021 | { | |
| 8022 | Elf_Internal_Sym *locsyms = NULL; | |
| 8023 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8024 | ||
| 102890f0 AM |
8025 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8026 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8027 | { | |
| 8028 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8029 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8030 | |
| 102890f0 AM |
8031 | /* Read the relocations. */ |
| 8032 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8033 | info->keep_memory); | |
| 8034 | if (relstart == NULL) | |
| 8035 | return FALSE; | |
| 411e1bfb | 8036 | |
| 102890f0 AM |
8037 | relend = relstart + sec->reloc_count; |
| 8038 | for (rel = relstart; rel < relend; rel++) | |
| 8039 | { | |
| 8040 | enum elf_ppc64_reloc_type r_type; | |
| 8041 | unsigned long r_symndx; | |
| 8042 | struct elf_link_hash_entry *h; | |
| 8043 | Elf_Internal_Sym *sym; | |
| 8044 | asection *sym_sec; | |
| f961d9dd AM |
8045 | unsigned char *tls_mask; |
| 8046 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8047 | bfd_vma value; |
| 8048 | bfd_boolean ok_tprel, is_local; | |
| 8049 | long toc_ref_index = 0; | |
| 8050 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8051 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8052 | |
| 102890f0 AM |
8053 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8054 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8055 | r_symndx, ibfd)) | |
| 8056 | { | |
| 8057 | err_free_rel: | |
| 8058 | if (elf_section_data (sec)->relocs != relstart) | |
| 8059 | free (relstart); | |
| 8060 | if (toc_ref != NULL) | |
| 8061 | free (toc_ref); | |
| 8062 | if (locsyms != NULL | |
| 0ffa91dd | 8063 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8064 | != (unsigned char *) locsyms)) |
| 8065 | free (locsyms); | |
| 663a1470 | 8066 | return ret; |
| 102890f0 | 8067 | } |
| 411e1bfb | 8068 | |
| 102890f0 AM |
8069 | if (h != NULL) |
| 8070 | { | |
| 766bc656 AM |
8071 | if (h->root.type == bfd_link_hash_defined |
| 8072 | || h->root.type == bfd_link_hash_defweak) | |
| 8073 | value = h->root.u.def.value; | |
| 8074 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8075 | value = 0; | |
| 8076 | else | |
| 663a1470 AM |
8077 | { |
| 8078 | found_tls_get_addr_arg = 0; | |
| 8079 | continue; | |
| 8080 | } | |
| 102890f0 AM |
8081 | } |
| 8082 | else | |
| 8083 | /* Symbols referenced by TLS relocs must be of type | |
| 8084 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8085 | value = sym->st_value; | |
| 8086 | ||
| 8087 | ok_tprel = FALSE; | |
| 8088 | is_local = FALSE; | |
| 8089 | if (h == NULL | |
| 8090 | || !h->def_dynamic) | |
| 8091 | { | |
| 8092 | is_local = TRUE; | |
| 766bc656 AM |
8093 | if (h != NULL |
| 8094 | && h->root.type == bfd_link_hash_undefweak) | |
| 8095 | ok_tprel = TRUE; | |
| 8096 | else | |
| 8097 | { | |
| 8098 | value += sym_sec->output_offset; | |
| 8099 | value += sym_sec->output_section->vma; | |
| 8100 | value -= htab->elf.tls_sec->vma; | |
| 8101 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8102 | < (bfd_vma) 1 << 32); | |
| 8103 | } | |
| 102890f0 | 8104 | } |
| 951fd09b | 8105 | |
| 102890f0 | 8106 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8107 | /* If this section has old-style __tls_get_addr calls |
| 8108 | without marker relocs, then check that each | |
| 8109 | __tls_get_addr call reloc is preceded by a reloc | |
| 8110 | that conceivably belongs to the __tls_get_addr arg | |
| 8111 | setup insn. If we don't find matching arg setup | |
| 8112 | relocs, don't do any tls optimization. */ | |
| 8113 | if (pass == 0 | |
| 8114 | && sec->has_tls_get_addr_call | |
| 8115 | && h != NULL | |
| 8116 | && (h == &htab->tls_get_addr->elf | |
| 8117 | || h == &htab->tls_get_addr_fd->elf) | |
| 8118 | && !found_tls_get_addr_arg | |
| 8119 | && is_branch_reloc (r_type)) | |
| 8120 | { | |
| 25f53a85 | 8121 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8122 | "TLS optimization disabled\n"), |
| 8123 | ibfd, sec, rel->r_offset); | |
| 8124 | ret = TRUE; | |
| 8125 | goto err_free_rel; | |
| 8126 | } | |
| 8127 | ||
| 8128 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8129 | switch (r_type) |
| 8130 | { | |
| 8131 | case R_PPC64_GOT_TLSLD16: | |
| 8132 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8133 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8134 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8135 | /* Fall thru */ |
| 8136 | ||
| 8137 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8138 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8139 | /* These relocs should never be against a symbol | |
| 8140 | defined in a shared lib. Leave them alone if | |
| 8141 | that turns out to be the case. */ | |
| 8142 | if (!is_local) | |
| 8143 | continue; | |
| 411e1bfb | 8144 | |
| 102890f0 | 8145 | /* LD -> LE */ |
| 411e1bfb | 8146 | tls_set = 0; |
| 102890f0 AM |
8147 | tls_clear = TLS_LD; |
| 8148 | tls_type = TLS_TLS | TLS_LD; | |
| 8149 | break; | |
| 411e1bfb | 8150 | |
| 102890f0 AM |
8151 | case R_PPC64_GOT_TLSGD16: |
| 8152 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8153 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8154 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8155 | /* Fall thru */ |
| 8156 | ||
| 8157 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8158 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8159 | if (ok_tprel) | |
| 8160 | /* GD -> LE */ | |
| 411e1bfb | 8161 | tls_set = 0; |
| 102890f0 AM |
8162 | else |
| 8163 | /* GD -> IE */ | |
| 8164 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8165 | tls_clear = TLS_GD; | |
| 8166 | tls_type = TLS_TLS | TLS_GD; | |
| 8167 | break; | |
| 8168 | ||
| 8169 | case R_PPC64_GOT_TPREL16_DS: | |
| 8170 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8171 | case R_PPC64_GOT_TPREL16_HI: | |
| 8172 | case R_PPC64_GOT_TPREL16_HA: | |
| 8173 | if (ok_tprel) | |
| 8174 | { | |
| 8175 | /* IE -> LE */ | |
| 8176 | tls_set = 0; | |
| 8177 | tls_clear = TLS_TPREL; | |
| 8178 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8179 | break; | |
| 8180 | } | |
| 411e1bfb AM |
8181 | continue; |
| 8182 | ||
| 727fc41e AM |
8183 | case R_PPC64_TLSGD: |
| 8184 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8185 | found_tls_get_addr_arg = 1; |
| 8186 | /* Fall thru */ | |
| 8187 | ||
| 8188 | case R_PPC64_TLS: | |
| 8189 | case R_PPC64_TOC16: | |
| 8190 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8191 | if (sym_sec == NULL || sym_sec != toc) |
| 8192 | continue; | |
| 8193 | ||
| 8194 | /* Mark this toc entry as referenced by a TLS | |
| 8195 | code sequence. We can do that now in the | |
| 8196 | case of R_PPC64_TLS, and after checking for | |
| 8197 | tls_get_addr for the TOC16 relocs. */ | |
| 8198 | if (toc_ref == NULL) | |
| 663a1470 AM |
8199 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8200 | if (toc_ref == NULL) | |
| 8201 | goto err_free_rel; | |
| 8202 | ||
| 102890f0 AM |
8203 | if (h != NULL) |
| 8204 | value = h->root.u.def.value; | |
| 8205 | else | |
| 8206 | value = sym->st_value; | |
| 8207 | value += rel->r_addend; | |
| 8208 | BFD_ASSERT (value < toc->size && value % 8 == 0); | |
| 663a1470 | 8209 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8210 | if (r_type == R_PPC64_TLS |
| 8211 | || r_type == R_PPC64_TLSGD | |
| 8212 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8213 | { |
| 8214 | toc_ref[toc_ref_index] = 1; | |
| 8215 | continue; | |
| 8216 | } | |
| 8217 | ||
| 8218 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8219 | continue; | |
| 8220 | ||
| 8221 | tls_set = 0; | |
| 8222 | tls_clear = 0; | |
| 8223 | expecting_tls_get_addr = 2; | |
| 8224 | break; | |
| 8225 | ||
| 8226 | case R_PPC64_TPREL64: | |
| 8227 | if (pass == 0 | |
| 8228 | || sec != toc | |
| 8229 | || toc_ref == NULL | |
| 663a1470 | 8230 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8231 | continue; |
| 8232 | if (ok_tprel) | |
| 8233 | { | |
| 8234 | /* IE -> LE */ | |
| 8235 | tls_set = TLS_EXPLICIT; | |
| 8236 | tls_clear = TLS_TPREL; | |
| 8237 | break; | |
| 8238 | } | |
| 8239 | continue; | |
| 8240 | ||
| 8241 | case R_PPC64_DTPMOD64: | |
| 8242 | if (pass == 0 | |
| 8243 | || sec != toc | |
| 8244 | || toc_ref == NULL | |
| 663a1470 | 8245 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8246 | continue; |
| 8247 | if (rel + 1 < relend | |
| 8248 | && (rel[1].r_info | |
| 8249 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8250 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8251 | { | |
| 8252 | if (ok_tprel) | |
| 8253 | /* GD -> LE */ | |
| 8254 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8255 | else | |
| 8256 | /* GD -> IE */ | |
| 8257 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8258 | tls_clear = TLS_GD; | |
| 8259 | } | |
| 8260 | else | |
| 8261 | { | |
| 8262 | if (!is_local) | |
| 8263 | continue; | |
| 8264 | ||
| 8265 | /* LD -> LE */ | |
| 8266 | tls_set = TLS_EXPLICIT; | |
| 8267 | tls_clear = TLS_LD; | |
| 8268 | } | |
| 8269 | break; | |
| 8270 | ||
| 8271 | default: | |
| 8272 | continue; | |
| 8273 | } | |
| 8274 | ||
| 8275 | if (pass == 0) | |
| 8276 | { | |
| 727fc41e AM |
8277 | if (!expecting_tls_get_addr |
| 8278 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8279 | continue; |
| 8280 | ||
| 3a71aa26 AM |
8281 | if (rel + 1 < relend |
| 8282 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8283 | htab->tls_get_addr, | |
| 8284 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8285 | { |
| 3a71aa26 | 8286 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8287 | { |
| 3a71aa26 | 8288 | /* Check for toc tls entries. */ |
| f961d9dd | 8289 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8290 | int retval; |
| 8291 | ||
| 8292 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8293 | &locsyms, | |
| 8294 | rel, ibfd); | |
| 8295 | if (retval == 0) | |
| 8296 | goto err_free_rel; | |
| 663a1470 AM |
8297 | if (toc_tls != NULL) |
| 8298 | { | |
| 8299 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8300 | found_tls_get_addr_arg = 1; | |
| 8301 | if (retval > 1) | |
| 8302 | toc_ref[toc_ref_index] = 1; | |
| 8303 | } | |
| 102890f0 | 8304 | } |
| 3a71aa26 | 8305 | continue; |
| 102890f0 AM |
8306 | } |
| 8307 | ||
| 8308 | if (expecting_tls_get_addr != 1) | |
| 8309 | continue; | |
| 8310 | ||
| 8311 | /* Uh oh, we didn't find the expected call. We | |
| 8312 | could just mark this symbol to exclude it | |
| 8313 | from tls optimization but it's safer to skip | |
| 663a1470 | 8314 | the entire optimization. */ |
| 25f53a85 | 8315 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8316 | "TLS optimization disabled\n"), |
| 8317 | ibfd, sec, rel->r_offset); | |
| 8318 | ret = TRUE; | |
| 8319 | goto err_free_rel; | |
| 102890f0 AM |
8320 | } |
| 8321 | ||
| 85f7a9cb | 8322 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8323 | { |
| 8324 | struct plt_entry *ent; | |
| 8325 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8326 | ent != NULL; | |
| 8327 | ent = ent->next) | |
| 8328 | if (ent->addend == 0) | |
| 411e1bfb | 8329 | { |
| 102890f0 | 8330 | if (ent->plt.refcount > 0) |
| 30038c59 | 8331 | { |
| 102890f0 AM |
8332 | ent->plt.refcount -= 1; |
| 8333 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8334 | } |
| 102890f0 | 8335 | break; |
| 411e1bfb | 8336 | } |
| 102890f0 | 8337 | } |
| 411e1bfb | 8338 | |
| 85f7a9cb | 8339 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8340 | { |
| 8341 | struct plt_entry *ent; | |
| 8342 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8343 | ent != NULL; | |
| 8344 | ent = ent->next) | |
| 8345 | if (ent->addend == 0) | |
| 411e1bfb | 8346 | { |
| 102890f0 AM |
8347 | if (ent->plt.refcount > 0) |
| 8348 | ent->plt.refcount -= 1; | |
| 8349 | break; | |
| 411e1bfb | 8350 | } |
| 102890f0 | 8351 | } |
| 411e1bfb | 8352 | |
| 102890f0 | 8353 | if (tls_clear == 0) |
| 30038c59 AM |
8354 | continue; |
| 8355 | ||
| 102890f0 AM |
8356 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8357 | { | |
| 8358 | struct got_entry *ent; | |
| 411e1bfb | 8359 | |
| 102890f0 AM |
8360 | /* Adjust got entry for this reloc. */ |
| 8361 | if (h != NULL) | |
| 8362 | ent = h->got.glist; | |
| 8363 | else | |
| 8364 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8365 | |
| 102890f0 AM |
8366 | for (; ent != NULL; ent = ent->next) |
| 8367 | if (ent->addend == rel->r_addend | |
| 8368 | && ent->owner == ibfd | |
| 8369 | && ent->tls_type == tls_type) | |
| 8370 | break; | |
| 8371 | if (ent == NULL) | |
| 8372 | abort (); | |
| 411e1bfb | 8373 | |
| 102890f0 AM |
8374 | if (tls_set == 0) |
| 8375 | { | |
| 8376 | /* We managed to get rid of a got entry. */ | |
| 8377 | if (ent->got.refcount > 0) | |
| 8378 | ent->got.refcount -= 1; | |
| 8379 | } | |
| 8380 | } | |
| 8381 | else | |
| 8382 | { | |
| 8383 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8384 | we'll lose one or two dyn relocs. */ | |
| 8385 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8386 | NULL, h, sym)) |
| 102890f0 | 8387 | return FALSE; |
| 411e1bfb | 8388 | |
| 102890f0 AM |
8389 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8390 | { | |
| 8391 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8392 | NULL, h, sym)) |
| 102890f0 AM |
8393 | return FALSE; |
| 8394 | } | |
| 8395 | } | |
| 411e1bfb | 8396 | |
| 102890f0 AM |
8397 | *tls_mask |= tls_set; |
| 8398 | *tls_mask &= ~tls_clear; | |
| 8399 | } | |
| 8c1d1bb8 | 8400 | |
| 102890f0 AM |
8401 | if (elf_section_data (sec)->relocs != relstart) |
| 8402 | free (relstart); | |
| 8403 | } | |
| 411e1bfb | 8404 | |
| 663a1470 AM |
8405 | if (locsyms != NULL |
| 8406 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8407 | { | |
| 8408 | if (!info->keep_memory) | |
| 8409 | free (locsyms); | |
| 8410 | else | |
| 8411 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8412 | } | |
| 8413 | } | |
| 411e1bfb | 8414 | |
| 663a1470 AM |
8415 | if (toc_ref != NULL) |
| 8416 | free (toc_ref); | |
| b34976b6 | 8417 | return TRUE; |
| 1e2f5b6e | 8418 | } |
| b34976b6 | 8419 | |
| c5614fa4 AM |
8420 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8421 | the values of any global symbols in a toc section that has been | |
| 8422 | edited. Globals in toc sections should be a rarity, so this function | |
| 8423 | sets a flag if any are found in toc sections other than the one just | |
| 8424 | edited, so that futher hash table traversals can be avoided. */ | |
| 8425 | ||
| 8426 | struct adjust_toc_info | |
| 8427 | { | |
| 8428 | asection *toc; | |
| 8429 | unsigned long *skip; | |
| 8430 | bfd_boolean global_toc_syms; | |
| 8431 | }; | |
| 8432 | ||
| ba761f19 AM |
8433 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8434 | ||
| c5614fa4 AM |
8435 | static bfd_boolean |
| 8436 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8437 | { | |
| 8438 | struct ppc_link_hash_entry *eh; | |
| 8439 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8440 | unsigned long i; |
| c5614fa4 | 8441 | |
| c5614fa4 AM |
8442 | if (h->root.type != bfd_link_hash_defined |
| 8443 | && h->root.type != bfd_link_hash_defweak) | |
| 8444 | return TRUE; | |
| 8445 | ||
| 8446 | eh = (struct ppc_link_hash_entry *) h; | |
| 8447 | if (eh->adjust_done) | |
| 8448 | return TRUE; | |
| 8449 | ||
| 8450 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8451 | { | |
| 854b41e7 AM |
8452 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8453 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8454 | else |
| 854b41e7 AM |
8455 | i = eh->elf.root.u.def.value >> 3; |
| 8456 | ||
| ba761f19 | 8457 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8458 | { |
| 8459 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8460 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8461 | do | |
| 8462 | ++i; | |
| ba761f19 | 8463 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8464 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8465 | } |
| 854b41e7 AM |
8466 | |
| 8467 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8468 | eh->adjust_done = 1; |
| 8469 | } | |
| 8470 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8471 | toc_inf->global_toc_syms = TRUE; | |
| 8472 | ||
| 8473 | return TRUE; | |
| 8474 | } | |
| 8475 | ||
| 560c8763 AM |
8476 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8477 | ||
| 8478 | static bfd_boolean | |
| 8479 | ok_lo_toc_insn (unsigned int insn) | |
| 8480 | { | |
| 8481 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8482 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8483 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8484 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8485 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8486 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8487 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8488 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8489 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8490 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8491 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8492 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8493 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8494 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8495 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8496 | && (insn & 3) != 1) | |
| 8497 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8498 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8499 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8500 | } | |
| 8501 | ||
| c5614fa4 AM |
8502 | /* Examine all relocs referencing .toc sections in order to remove |
| 8503 | unused .toc entries. */ | |
| 8504 | ||
| 8505 | bfd_boolean | |
| 33c0ec9d | 8506 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8507 | { |
| 8508 | bfd *ibfd; | |
| 8509 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8510 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8511 | |
| 67f0cbdb | 8512 | htab->do_toc_opt = 1; |
| c5614fa4 AM |
8513 | toc_inf.global_toc_syms = TRUE; |
| 8514 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 8515 | { | |
| 8516 | asection *toc, *sec; | |
| 8517 | Elf_Internal_Shdr *symtab_hdr; | |
| 8518 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8519 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8520 | unsigned long *skip, *drop; |
| 8521 | unsigned char *used; | |
| 8522 | unsigned char *keep, last, some_unused; | |
| 8523 | ||
| 854b41e7 AM |
8524 | if (!is_ppc64_elf (ibfd)) |
| 8525 | continue; | |
| 8526 | ||
| c5614fa4 AM |
8527 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8528 | if (toc == NULL | |
| 92b7a70f | 8529 | || toc->size == 0 |
| dbaa2011 AM |
8530 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8531 | || discarded_section (toc)) | |
| c5614fa4 AM |
8532 | continue; |
| 8533 | ||
| 425b145b | 8534 | toc_relocs = NULL; |
| c5614fa4 | 8535 | local_syms = NULL; |
| 0ffa91dd | 8536 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8537 | |
| 8538 | /* Look at sections dropped from the final link. */ | |
| 8539 | skip = NULL; | |
| 8540 | relstart = NULL; | |
| 8541 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8542 | { | |
| 8543 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8544 | || !discarded_section (sec) |
| c5614fa4 AM |
8545 | || get_opd_info (sec) |
| 8546 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8547 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8548 | continue; | |
| 8549 | ||
| 8550 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8551 | if (relstart == NULL) | |
| 8552 | goto error_ret; | |
| 8553 | ||
| 8554 | /* Run through the relocs to see which toc entries might be | |
| 8555 | unused. */ | |
| 8556 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8557 | { | |
| 8558 | enum elf_ppc64_reloc_type r_type; | |
| 8559 | unsigned long r_symndx; | |
| 8560 | asection *sym_sec; | |
| 8561 | struct elf_link_hash_entry *h; | |
| 8562 | Elf_Internal_Sym *sym; | |
| 8563 | bfd_vma val; | |
| 8564 | ||
| 8565 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8566 | switch (r_type) | |
| 8567 | { | |
| 8568 | default: | |
| 8569 | continue; | |
| 8570 | ||
| 8571 | case R_PPC64_TOC16: | |
| 8572 | case R_PPC64_TOC16_LO: | |
| 8573 | case R_PPC64_TOC16_HI: | |
| 8574 | case R_PPC64_TOC16_HA: | |
| 8575 | case R_PPC64_TOC16_DS: | |
| 8576 | case R_PPC64_TOC16_LO_DS: | |
| 8577 | break; | |
| 8578 | } | |
| 8579 | ||
| 8580 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8581 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8582 | r_symndx, ibfd)) | |
| 8583 | goto error_ret; | |
| 8584 | ||
| 8585 | if (sym_sec != toc) | |
| 8586 | continue; | |
| 8587 | ||
| 8588 | if (h != NULL) | |
| 8589 | val = h->root.u.def.value; | |
| 8590 | else | |
| 8591 | val = sym->st_value; | |
| 8592 | val += rel->r_addend; | |
| 8593 | ||
| 8594 | if (val >= toc->size) | |
| 8595 | continue; | |
| 8596 | ||
| 8597 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8598 | If not, don't mark as unused. */ | |
| 8599 | if (val & 7) | |
| 8600 | continue; | |
| 8601 | ||
| 8602 | if (skip == NULL) | |
| 8603 | { | |
| 854b41e7 | 8604 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8605 | if (skip == NULL) |
| 8606 | goto error_ret; | |
| 8607 | } | |
| 8608 | ||
| ba761f19 | 8609 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8610 | } |
| 8611 | ||
| 8612 | if (elf_section_data (sec)->relocs != relstart) | |
| 8613 | free (relstart); | |
| 8614 | } | |
| 8615 | ||
| ba761f19 AM |
8616 | /* For largetoc loads of address constants, we can convert |
| 8617 | . addis rx,2,addr@got@ha | |
| 8618 | . ld ry,addr@got@l(rx) | |
| 8619 | to | |
| 8620 | . addis rx,2,addr@toc@ha | |
| 8621 | . addi ry,rx,addr@toc@l | |
| 8622 | when addr is within 2G of the toc pointer. This then means | |
| 8623 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8624 | |
| ba761f19 AM |
8625 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8626 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8627 | && toc->reloc_count != 0) | |
| 8628 | { | |
| 8629 | /* Read toc relocs. */ | |
| 425b145b AM |
8630 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8631 | info->keep_memory); | |
| 8632 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8633 | goto error_ret; |
| 8634 | ||
| 425b145b | 8635 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8636 | { |
| 8637 | enum elf_ppc64_reloc_type r_type; | |
| 8638 | unsigned long r_symndx; | |
| 8639 | asection *sym_sec; | |
| 8640 | struct elf_link_hash_entry *h; | |
| 8641 | Elf_Internal_Sym *sym; | |
| 8642 | bfd_vma val, addr; | |
| 8643 | ||
| 8644 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8645 | if (r_type != R_PPC64_ADDR64) | |
| 8646 | continue; | |
| 8647 | ||
| 8648 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8649 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8650 | r_symndx, ibfd)) | |
| 8651 | goto error_ret; | |
| 8652 | ||
| 425b145b | 8653 | if (sym_sec == NULL |
| dbaa2011 | 8654 | || discarded_section (sym_sec)) |
| 425b145b AM |
8655 | continue; |
| 8656 | ||
| 726d3ab0 | 8657 | if (!SYMBOL_CALLS_LOCAL (info, h)) |
| ba761f19 AM |
8658 | continue; |
| 8659 | ||
| 8660 | if (h != NULL) | |
| bddc25c9 AM |
8661 | { |
| 8662 | if (h->type == STT_GNU_IFUNC) | |
| 8663 | continue; | |
| 8664 | val = h->root.u.def.value; | |
| 8665 | } | |
| ba761f19 | 8666 | else |
| bddc25c9 AM |
8667 | { |
| 8668 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8669 | continue; | |
| 8670 | val = sym->st_value; | |
| 8671 | } | |
| ba761f19 AM |
8672 | val += rel->r_addend; |
| 8673 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8674 | ||
| 8675 | /* We don't yet know the exact toc pointer value, but we | |
| 8676 | know it will be somewhere in the toc section. Don't | |
| 8677 | optimize if the difference from any possible toc | |
| 8678 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8679 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8680 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8681 | continue; | |
| 8682 | ||
| 8683 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 8684 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8685 | continue; | |
| 8686 | ||
| 8687 | if (skip == NULL) | |
| 8688 | { | |
| 8689 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 8690 | if (skip == NULL) | |
| 8691 | goto error_ret; | |
| 8692 | } | |
| 8693 | ||
| 8694 | skip[rel->r_offset >> 3] | |
| 425b145b | 8695 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 8696 | } |
| ba761f19 AM |
8697 | } |
| 8698 | ||
| c5614fa4 AM |
8699 | if (skip == NULL) |
| 8700 | continue; | |
| 8701 | ||
| 8702 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 8703 | if (used == NULL) | |
| 8704 | { | |
| 8705 | error_ret: | |
| 8706 | if (local_syms != NULL | |
| 8707 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8708 | free (local_syms); | |
| 8709 | if (sec != NULL | |
| 8710 | && relstart != NULL | |
| 8711 | && elf_section_data (sec)->relocs != relstart) | |
| 8712 | free (relstart); | |
| 425b145b AM |
8713 | if (toc_relocs != NULL |
| 8714 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 8715 | free (toc_relocs); | |
| c5614fa4 AM |
8716 | if (skip != NULL) |
| 8717 | free (skip); | |
| 8718 | return FALSE; | |
| 8719 | } | |
| 8720 | ||
| 30038c59 AM |
8721 | /* Now check all kept sections that might reference the toc. |
| 8722 | Check the toc itself last. */ | |
| 8723 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 8724 | : ibfd->sections); | |
| c5614fa4 | 8725 | sec != NULL; |
| c5614fa4 | 8726 | sec = (sec == toc ? NULL |
| c5614fa4 | 8727 | : sec->next == NULL ? toc |
| 30038c59 | 8728 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
8729 | : sec->next)) |
| 8730 | { | |
| 8731 | int repeat; | |
| 8732 | ||
| 8733 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8734 | || discarded_section (sec) |
| c5614fa4 AM |
8735 | || get_opd_info (sec) |
| 8736 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8737 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8738 | continue; | |
| 8739 | ||
| 854b41e7 AM |
8740 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 8741 | info->keep_memory); | |
| c5614fa4 AM |
8742 | if (relstart == NULL) |
| 8743 | goto error_ret; | |
| 8744 | ||
| 8745 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 8746 | do |
| d4f1ee75 AM |
8747 | { |
| 8748 | repeat = 0; | |
| 8749 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8750 | { | |
| 8751 | enum elf_ppc64_reloc_type r_type; | |
| 8752 | unsigned long r_symndx; | |
| 8753 | asection *sym_sec; | |
| 8754 | struct elf_link_hash_entry *h; | |
| 8755 | Elf_Internal_Sym *sym; | |
| 8756 | bfd_vma val; | |
| 8757 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 8758 | |
| d4f1ee75 AM |
8759 | r_type = ELF64_R_TYPE (rel->r_info); |
| 8760 | switch (r_type) | |
| 8761 | { | |
| 8762 | default: | |
| 8763 | insn_check = no_check; | |
| 8764 | break; | |
| 98528052 | 8765 | |
| d4f1ee75 AM |
8766 | case R_PPC64_GOT_TLSLD16_HA: |
| 8767 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8768 | case R_PPC64_GOT_TPREL16_HA: | |
| 8769 | case R_PPC64_GOT_DTPREL16_HA: | |
| 8770 | case R_PPC64_GOT16_HA: | |
| 8771 | case R_PPC64_TOC16_HA: | |
| 8772 | insn_check = check_ha; | |
| 8773 | break; | |
| 98528052 | 8774 | |
| d4f1ee75 AM |
8775 | case R_PPC64_GOT_TLSLD16_LO: |
| 8776 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8777 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8778 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 8779 | case R_PPC64_GOT16_LO: | |
| 8780 | case R_PPC64_GOT16_LO_DS: | |
| 8781 | case R_PPC64_TOC16_LO: | |
| 8782 | case R_PPC64_TOC16_LO_DS: | |
| 8783 | insn_check = check_lo; | |
| 8784 | break; | |
| 8785 | } | |
| 560c8763 | 8786 | |
| d4f1ee75 AM |
8787 | if (insn_check != no_check) |
| 8788 | { | |
| 8789 | bfd_vma off = rel->r_offset & ~3; | |
| 8790 | unsigned char buf[4]; | |
| 8791 | unsigned int insn; | |
| c5614fa4 | 8792 | |
| d4f1ee75 AM |
8793 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 8794 | { | |
| 8795 | free (used); | |
| 8796 | goto error_ret; | |
| 8797 | } | |
| 8798 | insn = bfd_get_32 (ibfd, buf); | |
| 8799 | if (insn_check == check_lo | |
| 8800 | ? !ok_lo_toc_insn (insn) | |
| 8801 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 8802 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 8803 | { | |
| 8804 | char str[12]; | |
| 8805 | ||
| 8806 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 8807 | sprintf (str, "%#08x", insn); | |
| 8808 | info->callbacks->einfo | |
| 8809 | (_("%P: %H: toc optimization is not supported for" | |
| 8810 | " %s instruction.\n"), | |
| 8811 | ibfd, sec, rel->r_offset & ~3, str); | |
| 8812 | } | |
| 8813 | } | |
| c5614fa4 | 8814 | |
| d4f1ee75 AM |
8815 | switch (r_type) |
| 8816 | { | |
| 8817 | case R_PPC64_TOC16: | |
| 8818 | case R_PPC64_TOC16_LO: | |
| 8819 | case R_PPC64_TOC16_HI: | |
| 8820 | case R_PPC64_TOC16_HA: | |
| 8821 | case R_PPC64_TOC16_DS: | |
| 8822 | case R_PPC64_TOC16_LO_DS: | |
| 8823 | /* In case we're taking addresses of toc entries. */ | |
| 8824 | case R_PPC64_ADDR64: | |
| 8825 | break; | |
| c5614fa4 | 8826 | |
| d4f1ee75 AM |
8827 | default: |
| 8828 | continue; | |
| 8829 | } | |
| c5614fa4 | 8830 | |
| d4f1ee75 AM |
8831 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8832 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8833 | r_symndx, ibfd)) | |
| 8834 | { | |
| 8835 | free (used); | |
| 8836 | goto error_ret; | |
| 8837 | } | |
| c5614fa4 | 8838 | |
| d4f1ee75 AM |
8839 | if (sym_sec != toc) |
| 8840 | continue; | |
| c5614fa4 | 8841 | |
| d4f1ee75 AM |
8842 | if (h != NULL) |
| 8843 | val = h->root.u.def.value; | |
| 8844 | else | |
| 8845 | val = sym->st_value; | |
| 8846 | val += rel->r_addend; | |
| ba761f19 | 8847 | |
| d4f1ee75 AM |
8848 | if (val >= toc->size) |
| 8849 | continue; | |
| ba761f19 | 8850 | |
| d4f1ee75 AM |
8851 | if ((skip[val >> 3] & can_optimize) != 0) |
| 8852 | { | |
| 8853 | bfd_vma off; | |
| 8854 | unsigned char opc; | |
| 8855 | ||
| 8856 | switch (r_type) | |
| 8857 | { | |
| 8858 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 8859 | break; |
| ba761f19 | 8860 | |
| d4f1ee75 AM |
8861 | case R_PPC64_TOC16_LO_DS: |
| 8862 | off = rel->r_offset; | |
| 8863 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 8864 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 8865 | off, 1)) | |
| 8866 | { | |
| 8867 | free (used); | |
| 8868 | goto error_ret; | |
| 8869 | } | |
| 8870 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 8871 | break; | |
| 8872 | /* Fall thru */ | |
| ba761f19 | 8873 | |
| d4f1ee75 AM |
8874 | default: |
| 8875 | /* Wrong sort of reloc, or not a ld. We may | |
| 8876 | as well clear ref_from_discarded too. */ | |
| 8877 | skip[val >> 3] = 0; | |
| 8878 | } | |
| 8879 | } | |
| 8880 | ||
| 8881 | if (sec != toc) | |
| 8882 | used[val >> 3] = 1; | |
| 8883 | /* For the toc section, we only mark as used if this | |
| 8884 | entry itself isn't unused. */ | |
| 8885 | else if ((used[rel->r_offset >> 3] | |
| 8886 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 8887 | && !used[val >> 3]) | |
| 8888 | { | |
| 8889 | /* Do all the relocs again, to catch reference | |
| 8890 | chains. */ | |
| 8891 | repeat = 1; | |
| 8892 | used[val >> 3] = 1; | |
| 8893 | } | |
| 8894 | } | |
| 8895 | } | |
| c5614fa4 | 8896 | while (repeat); |
| 854b41e7 AM |
8897 | |
| 8898 | if (elf_section_data (sec)->relocs != relstart) | |
| 8899 | free (relstart); | |
| c5614fa4 AM |
8900 | } |
| 8901 | ||
| 8902 | /* Merge the used and skip arrays. Assume that TOC | |
| 8903 | doublewords not appearing as either used or unused belong | |
| 8904 | to to an entry more than one doubleword in size. */ | |
| 8905 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 8906 | drop < skip + (toc->size + 7) / 8; | |
| 8907 | ++drop, ++keep) | |
| 8908 | { | |
| 8909 | if (*keep) | |
| 8910 | { | |
| ba761f19 AM |
8911 | *drop &= ~ref_from_discarded; |
| 8912 | if ((*drop & can_optimize) != 0) | |
| 8913 | some_unused = 1; | |
| c5614fa4 AM |
8914 | last = 0; |
| 8915 | } | |
| b140b010 | 8916 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
8917 | { |
| 8918 | some_unused = 1; | |
| ba761f19 | 8919 | last = ref_from_discarded; |
| c5614fa4 AM |
8920 | } |
| 8921 | else | |
| 8922 | *drop = last; | |
| 8923 | } | |
| 8924 | ||
| 8925 | free (used); | |
| 8926 | ||
| 8927 | if (some_unused) | |
| 8928 | { | |
| 8929 | bfd_byte *contents, *src; | |
| 8930 | unsigned long off; | |
| d62b3684 | 8931 | Elf_Internal_Sym *sym; |
| ba761f19 | 8932 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
8933 | |
| 8934 | /* Shuffle the toc contents, and at the same time convert the | |
| 8935 | skip array from booleans into offsets. */ | |
| 8936 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 8937 | goto error_ret; | |
| 8938 | ||
| 8939 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 8940 | ||
| 8941 | for (src = contents, off = 0, drop = skip; | |
| 8942 | src < contents + toc->size; | |
| 8943 | src += 8, ++drop) | |
| 8944 | { | |
| ba761f19 AM |
8945 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 8946 | off += 8; | |
| c5614fa4 AM |
8947 | else if (off != 0) |
| 8948 | { | |
| 8949 | *drop = off; | |
| 8950 | memcpy (src - off, src, 8); | |
| 8951 | } | |
| 8952 | } | |
| 854b41e7 | 8953 | *drop = off; |
| c5614fa4 AM |
8954 | toc->rawsize = toc->size; |
| 8955 | toc->size = src - contents - off; | |
| 8956 | ||
| ba761f19 AM |
8957 | /* Adjust addends for relocs against the toc section sym, |
| 8958 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
8959 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8960 | { | |
| 8961 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8962 | || discarded_section (sec)) |
| c5614fa4 AM |
8963 | continue; |
| 8964 | ||
| 8965 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 8966 | info->keep_memory); |
| c5614fa4 AM |
8967 | if (relstart == NULL) |
| 8968 | goto error_ret; | |
| 8969 | ||
| 8970 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8971 | { | |
| 8972 | enum elf_ppc64_reloc_type r_type; | |
| 8973 | unsigned long r_symndx; | |
| 8974 | asection *sym_sec; | |
| 8975 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 8976 | bfd_vma val; |
| c5614fa4 AM |
8977 | |
| 8978 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8979 | switch (r_type) | |
| 8980 | { | |
| 8981 | default: | |
| 8982 | continue; | |
| 8983 | ||
| 8984 | case R_PPC64_TOC16: | |
| 8985 | case R_PPC64_TOC16_LO: | |
| 8986 | case R_PPC64_TOC16_HI: | |
| 8987 | case R_PPC64_TOC16_HA: | |
| 8988 | case R_PPC64_TOC16_DS: | |
| 8989 | case R_PPC64_TOC16_LO_DS: | |
| 8990 | case R_PPC64_ADDR64: | |
| 8991 | break; | |
| 8992 | } | |
| 8993 | ||
| 8994 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8995 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8996 | r_symndx, ibfd)) | |
| 8997 | goto error_ret; | |
| 8998 | ||
| ba761f19 | 8999 | if (sym_sec != toc) |
| c5614fa4 AM |
9000 | continue; |
| 9001 | ||
| ba761f19 AM |
9002 | if (h != NULL) |
| 9003 | val = h->root.u.def.value; | |
| 9004 | else | |
| 9005 | { | |
| 9006 | val = sym->st_value; | |
| 9007 | if (val != 0) | |
| 9008 | local_toc_syms = TRUE; | |
| 9009 | } | |
| 9010 | ||
| 9011 | val += rel->r_addend; | |
| 854b41e7 AM |
9012 | |
| 9013 | if (val > toc->rawsize) | |
| 9014 | val = toc->rawsize; | |
| ba761f19 AM |
9015 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9016 | continue; | |
| 9017 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9018 | { | |
| 9019 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9020 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9021 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9022 | ||
| 9023 | switch (r_type) | |
| 9024 | { | |
| 9025 | case R_PPC64_TOC16_HA: | |
| 9026 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9027 | break; | |
| 9028 | ||
| 9029 | case R_PPC64_TOC16_LO_DS: | |
| 9030 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9031 | break; | |
| 9032 | ||
| 9033 | default: | |
| 28942f62 AM |
9034 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9035 | ppc_howto_init (); | |
| b140b010 | 9036 | info->callbacks->einfo |
| bc30df16 | 9037 | (_("%P: %H: %s references " |
| b140b010 AM |
9038 | "optimized away TOC entry\n"), |
| 9039 | ibfd, sec, rel->r_offset, | |
| 9040 | ppc64_elf_howto_table[r_type]->name); | |
| 9041 | bfd_set_error (bfd_error_bad_value); | |
| 9042 | goto error_ret; | |
| ba761f19 AM |
9043 | } |
| 9044 | rel->r_addend = tocrel->r_addend; | |
| 9045 | elf_section_data (sec)->relocs = relstart; | |
| 9046 | continue; | |
| 9047 | } | |
| 9048 | ||
| 9049 | if (h != NULL || sym->st_value != 0) | |
| 9050 | continue; | |
| 854b41e7 AM |
9051 | |
| 9052 | rel->r_addend -= skip[val >> 3]; | |
| 9053 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9054 | } |
| 854b41e7 AM |
9055 | |
| 9056 | if (elf_section_data (sec)->relocs != relstart) | |
| 9057 | free (relstart); | |
| c5614fa4 AM |
9058 | } |
| 9059 | ||
| 9060 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9061 | but handle them anyway. */ | |
| df22d223 AM |
9062 | if (local_syms != NULL) |
| 9063 | for (sym = local_syms; | |
| 9064 | sym < local_syms + symtab_hdr->sh_info; | |
| 9065 | ++sym) | |
| 9066 | if (sym->st_value != 0 | |
| 9067 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9068 | { | |
| 9069 | unsigned long i; | |
| 854b41e7 | 9070 | |
| df22d223 AM |
9071 | if (sym->st_value > toc->rawsize) |
| 9072 | i = toc->rawsize >> 3; | |
| 9073 | else | |
| 9074 | i = sym->st_value >> 3; | |
| 854b41e7 | 9075 | |
| df22d223 AM |
9076 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9077 | { | |
| 9078 | if (local_toc_syms) | |
| 9079 | (*_bfd_error_handler) | |
| 9080 | (_("%s defined on removed toc entry"), | |
| 9081 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9082 | do | |
| 9083 | ++i; | |
| 9084 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9085 | sym->st_value = (bfd_vma) i << 3; | |
| 9086 | } | |
| d62b3684 | 9087 | |
| df22d223 AM |
9088 | sym->st_value -= skip[i]; |
| 9089 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9090 | } | |
| c5614fa4 | 9091 | |
| 854b41e7 | 9092 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9093 | if (toc_inf.global_toc_syms) |
| 9094 | { | |
| 9095 | toc_inf.toc = toc; | |
| 9096 | toc_inf.skip = skip; | |
| 9097 | toc_inf.global_toc_syms = FALSE; | |
| 9098 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9099 | &toc_inf); | |
| 9100 | } | |
| 854b41e7 AM |
9101 | |
| 9102 | if (toc->reloc_count != 0) | |
| 9103 | { | |
| d4730f92 | 9104 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9105 | Elf_Internal_Rela *wrel; |
| 9106 | bfd_size_type sz; | |
| 9107 | ||
| 854b41e7 | 9108 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9109 | if (toc_relocs == NULL) |
| 9110 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9111 | info->keep_memory); | |
| 9112 | if (toc_relocs == NULL) | |
| 9113 | goto error_ret; | |
| 9114 | ||
| 425b145b AM |
9115 | wrel = toc_relocs; |
| 9116 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9117 | if ((skip[rel->r_offset >> 3] |
| 9118 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9119 | { |
| 9120 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9121 | wrel->r_info = rel->r_info; | |
| 9122 | wrel->r_addend = rel->r_addend; | |
| 9123 | ++wrel; | |
| 9124 | } | |
| 9125 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9126 | &local_syms, NULL, NULL)) | |
| 9127 | goto error_ret; | |
| 9128 | ||
| 425b145b AM |
9129 | elf_section_data (toc)->relocs = toc_relocs; |
| 9130 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9131 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9132 | sz = rel_hdr->sh_entsize; | |
| 9133 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9134 | } |
| c5614fa4 | 9135 | } |
| 28be611c AM |
9136 | else if (toc_relocs != NULL |
| 9137 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9138 | free (toc_relocs); |
| c5614fa4 AM |
9139 | |
| 9140 | if (local_syms != NULL | |
| 9141 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9142 | { | |
| 9143 | if (!info->keep_memory) | |
| 9144 | free (local_syms); | |
| 9145 | else | |
| 9146 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9147 | } | |
| 9148 | free (skip); | |
| 9149 | } | |
| 9150 | ||
| 9151 | return TRUE; | |
| 9152 | } | |
| 9153 | ||
| 1bbe0902 AM |
9154 | /* Return true iff input section I references the TOC using |
| 9155 | instructions limited to +/-32k offsets. */ | |
| 9156 | ||
| 9157 | bfd_boolean | |
| 9158 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9159 | { | |
| 9160 | return (is_ppc64_elf (i->owner) | |
| 9161 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9162 | } | |
| 9163 | ||
| 927be08e AM |
9164 | /* Allocate space for one GOT entry. */ |
| 9165 | ||
| 9166 | static void | |
| 9167 | allocate_got (struct elf_link_hash_entry *h, | |
| 9168 | struct bfd_link_info *info, | |
| 9169 | struct got_entry *gent) | |
| 9170 | { | |
| 9171 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9172 | bfd_boolean dyn; | |
| 9173 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9174 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9175 | ? 16 : 8); | |
| 9176 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9177 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9178 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9179 | ||
| 9180 | gent->got.offset = got->size; | |
| 9181 | got->size += entsize; | |
| 9182 | ||
| 9183 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9184 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9185 | { |
| 19e08130 AM |
9186 | htab->reliplt->size += rentsize; |
| 9187 | htab->got_reli_size += rentsize; | |
| 927be08e | 9188 | } |
| 19e08130 AM |
9189 | else if ((info->shared |
| 9190 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
| 9191 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9192 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9193 | { |
| 19e08130 | 9194 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9195 | relgot->size += rentsize; |
| 927be08e AM |
9196 | } |
| 9197 | } | |
| 9198 | ||
| 7865406b AM |
9199 | /* This function merges got entries in the same toc group. */ |
| 9200 | ||
| 9201 | static void | |
| 9202 | merge_got_entries (struct got_entry **pent) | |
| 9203 | { | |
| 9204 | struct got_entry *ent, *ent2; | |
| 9205 | ||
| 9206 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9207 | if (!ent->is_indirect) | |
| 9208 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9209 | if (!ent2->is_indirect | |
| 9210 | && ent2->addend == ent->addend | |
| 9211 | && ent2->tls_type == ent->tls_type | |
| 9212 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9213 | { | |
| 9214 | ent2->is_indirect = TRUE; | |
| 9215 | ent2->got.ent = ent; | |
| 9216 | } | |
| 9217 | } | |
| 9218 | ||
| 65f38f15 AM |
9219 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9220 | dynamic relocs. */ | |
| 5bd4f169 | 9221 | |
| b34976b6 | 9222 | static bfd_boolean |
| 4ce794b7 | 9223 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9224 | { |
| 65f38f15 AM |
9225 | struct bfd_link_info *info; |
| 9226 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9227 | asection *s; |
| 65f38f15 | 9228 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9229 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9230 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9231 | |
| e92d460e | 9232 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9233 | return TRUE; |
| 5bd4f169 | 9234 | |
| 65f38f15 AM |
9235 | info = (struct bfd_link_info *) inf; |
| 9236 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9237 | if (htab == NULL) |
| 9238 | return FALSE; | |
| 5bd4f169 | 9239 | |
| e054468f AM |
9240 | if ((htab->elf.dynamic_sections_created |
| 9241 | && h->dynindx != -1 | |
| 9242 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) | |
| 9243 | || h->type == STT_GNU_IFUNC) | |
| 5bd4f169 | 9244 | { |
| 411e1bfb AM |
9245 | struct plt_entry *pent; |
| 9246 | bfd_boolean doneone = FALSE; | |
| 9247 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9248 | if (pent->plt.refcount > 0) | |
| 9249 | { | |
| 25f23106 AM |
9250 | if (!htab->elf.dynamic_sections_created |
| 9251 | || h->dynindx == -1) | |
| e054468f AM |
9252 | { |
| 9253 | s = htab->iplt; | |
| 9254 | pent->plt.offset = s->size; | |
| b9e5796b | 9255 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f AM |
9256 | s = htab->reliplt; |
| 9257 | } | |
| 9258 | else | |
| 9259 | { | |
| 9260 | /* If this is the first .plt entry, make room for the special | |
| 9261 | first entry. */ | |
| 9262 | s = htab->plt; | |
| 9263 | if (s->size == 0) | |
| b9e5796b | 9264 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); |
| e054468f AM |
9265 | |
| 9266 | pent->plt.offset = s->size; | |
| 9267 | ||
| 9268 | /* Make room for this entry. */ | |
| b9e5796b | 9269 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f AM |
9270 | |
| 9271 | /* Make room for the .glink code. */ | |
| 9272 | s = htab->glink; | |
| 9273 | if (s->size == 0) | |
| 9274 | s->size += GLINK_CALL_STUB_SIZE; | |
| b9e5796b AM |
9275 | if (htab->opd_abi) |
| 9276 | { | |
| 9277 | /* We need bigger stubs past index 32767. */ | |
| 9278 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9279 | s->size += 4; | |
| 9280 | s->size += 2*4; | |
| 9281 | } | |
| 9282 | else | |
| e054468f | 9283 | s->size += 4; |
| e054468f AM |
9284 | |
| 9285 | /* We also need to make an entry in the .rela.plt section. */ | |
| 9286 | s = htab->relplt; | |
| 9287 | } | |
| eea6121a | 9288 | s->size += sizeof (Elf64_External_Rela); |
| 411e1bfb AM |
9289 | doneone = TRUE; |
| 9290 | } | |
| 9291 | else | |
| 9292 | pent->plt.offset = (bfd_vma) -1; | |
| 9293 | if (!doneone) | |
| 65f38f15 | 9294 | { |
| 411e1bfb | 9295 | h->plt.plist = NULL; |
| f5385ebf | 9296 | h->needs_plt = 0; |
| 65f38f15 AM |
9297 | } |
| 9298 | } | |
| 9299 | else | |
| 9300 | { | |
| 411e1bfb | 9301 | h->plt.plist = NULL; |
| f5385ebf | 9302 | h->needs_plt = 0; |
| 65f38f15 AM |
9303 | } |
| 9304 | ||
| 951fd09b AM |
9305 | eh = (struct ppc_link_hash_entry *) h; |
| 9306 | /* Run through the TLS GD got entries first if we're changing them | |
| 9307 | to TPREL. */ | |
| e7b938ca | 9308 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9309 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9310 | if (gent->got.refcount > 0 | |
| 9311 | && (gent->tls_type & TLS_GD) != 0) | |
| 9312 | { | |
| 9313 | /* This was a GD entry that has been converted to TPREL. If | |
| 9314 | there happens to be a TPREL entry we can use that one. */ | |
| 9315 | struct got_entry *ent; | |
| 9316 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9317 | if (ent->got.refcount > 0 | |
| 9318 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9319 | && ent->addend == gent->addend |
| 9320 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9321 | { |
| 9322 | gent->got.refcount = 0; | |
| 9323 | break; | |
| 9324 | } | |
| 9325 | ||
| 9326 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9327 | if (gent->got.refcount != 0) | |
| 9328 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9329 | } | |
| 9330 | ||
| 7865406b AM |
9331 | /* Remove any list entry that won't generate a word in the GOT before |
| 9332 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9333 | entries. */ | |
| 0b8bcf0d AM |
9334 | pgent = &h->got.glist; |
| 9335 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9336 | if (gent->got.refcount > 0) |
| 7865406b AM |
9337 | { |
| 9338 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9339 | && !h->def_dynamic) | |
| 9340 | { | |
| 9341 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9342 | *pgent = gent->next; | |
| 9343 | } | |
| 9344 | else | |
| 9345 | pgent = &gent->next; | |
| 9346 | } | |
| 9347 | else | |
| 9348 | *pgent = gent->next; | |
| 9349 | ||
| 9350 | if (!htab->do_multi_toc) | |
| 9351 | merge_got_entries (&h->got.glist); | |
| 9352 | ||
| 9353 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9354 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9355 | { |
| 9356 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9357 | Undefined weak syms won't yet be marked as dynamic, |
| 9358 | nor will all TLS symbols. */ | |
| 411e1bfb | 9359 | if (h->dynindx == -1 |
| b099ab9f | 9360 | && !h->forced_local |
| 25f23106 | 9361 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9362 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9363 | { |
| c152c796 | 9364 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9365 | return FALSE; |
| 9366 | } | |
| 65f38f15 | 9367 | |
| 0c8d6e5c | 9368 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9369 | abort (); |
| 0ffa91dd | 9370 | |
| 927be08e | 9371 | allocate_got (h, info, gent); |
| 411e1bfb | 9372 | } |
| 65f38f15 | 9373 | |
| b099ab9f | 9374 | if (eh->dyn_relocs == NULL |
| 25f23106 AM |
9375 | || (!htab->elf.dynamic_sections_created |
| 9376 | && h->type != STT_GNU_IFUNC)) | |
| b34976b6 | 9377 | return TRUE; |
| 65f38f15 AM |
9378 | |
| 9379 | /* In the shared -Bsymbolic case, discard space allocated for | |
| 9380 | dynamic pc-relative relocs against symbols which turn out to be | |
| 9381 | defined in regular objects. For the normal shared case, discard | |
| 9382 | space for relocs that have become local due to symbol visibility | |
| 9383 | changes. */ | |
| 9384 | ||
| 9385 | if (info->shared) | |
| 9386 | { | |
| 9c7a29a3 | 9387 | /* Relocs that use pc_count are those that appear on a call insn, |
| 1d483afe | 9388 | or certain REL relocs (see must_be_dyn_reloc) that can be |
| 9c7a29a3 AM |
9389 | generated via assembly. We want calls to protected symbols to |
| 9390 | resolve directly to the function rather than going via the plt. | |
| 9391 | If people want function pointer comparisons to work as expected | |
| 9392 | then they should avoid writing weird assembly. */ | |
| 09695f56 | 9393 | if (SYMBOL_CALLS_LOCAL (info, h)) |
| 65f38f15 | 9394 | { |
| 6061a67d | 9395 | struct elf_dyn_relocs **pp; |
| 65f38f15 AM |
9396 | |
| 9397 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 5bd4f169 | 9398 | { |
| 65f38f15 AM |
9399 | p->count -= p->pc_count; |
| 9400 | p->pc_count = 0; | |
| 9401 | if (p->count == 0) | |
| 9402 | *pp = p->next; | |
| 9403 | else | |
| 9404 | pp = &p->next; | |
| 5bd4f169 | 9405 | } |
| 65f38f15 | 9406 | } |
| 4e795f50 AM |
9407 | |
| 9408 | /* Also discard relocs on undefined weak syms with non-default | |
| 9409 | visibility. */ | |
| cab87ef9 AM |
9410 | if (eh->dyn_relocs != NULL |
| 9411 | && h->root.type == bfd_link_hash_undefweak) | |
| dfbb6ac9 AM |
9412 | { |
| 9413 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9414 | eh->dyn_relocs = NULL; | |
| 9415 | ||
| 9416 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9417 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9418 | else if (h->dynindx == -1 | |
| 9419 | && !h->forced_local) | |
| 9420 | { | |
| 9421 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9422 | return FALSE; | |
| 9423 | } | |
| 9424 | } | |
| 65f38f15 | 9425 | } |
| 25f23106 AM |
9426 | else if (h->type == STT_GNU_IFUNC) |
| 9427 | { | |
| 9428 | if (!h->non_got_ref) | |
| 9429 | eh->dyn_relocs = NULL; | |
| 9430 | } | |
| f4656909 | 9431 | else if (ELIMINATE_COPY_RELOCS) |
| 65f38f15 AM |
9432 | { |
| 9433 | /* For the non-shared case, discard space for relocs against | |
| 9434 | symbols which turn out to need copy relocs or are not | |
| 9435 | dynamic. */ | |
| 9436 | ||
| f5385ebf | 9437 | if (!h->non_got_ref |
| f5385ebf | 9438 | && !h->def_regular) |
| 65f38f15 AM |
9439 | { |
| 9440 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9441 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9442 | if (h->dynindx == -1 | |
| f5385ebf | 9443 | && !h->forced_local) |
| 65f38f15 | 9444 | { |
| c152c796 | 9445 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| b34976b6 | 9446 | return FALSE; |
| 65f38f15 AM |
9447 | } |
| 9448 | ||
| 9449 | /* If that succeeded, we know we'll be keeping all the | |
| 9450 | relocs. */ | |
| 9451 | if (h->dynindx != -1) | |
| 9452 | goto keep; | |
| 9453 | } | |
| 9454 | ||
| 9455 | eh->dyn_relocs = NULL; | |
| 9456 | ||
| ec338859 | 9457 | keep: ; |
| 65f38f15 AM |
9458 | } |
| 9459 | ||
| 9460 | /* Finally, allocate space. */ | |
| 9461 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9462 | { | |
| 9463 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 19e08130 | 9464 | if (eh->elf.type == STT_GNU_IFUNC) |
| 25f23106 | 9465 | sreloc = htab->reliplt; |
| eea6121a | 9466 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
| 65f38f15 AM |
9467 | } |
| 9468 | ||
| b34976b6 | 9469 | return TRUE; |
| 65f38f15 AM |
9470 | } |
| 9471 | ||
| 9472 | /* Find any dynamic relocs that apply to read-only sections. */ | |
| 9473 | ||
| b34976b6 | 9474 | static bfd_boolean |
| 4ce794b7 | 9475 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 AM |
9476 | { |
| 9477 | struct ppc_link_hash_entry *eh; | |
| 6061a67d | 9478 | struct elf_dyn_relocs *p; |
| 65f38f15 AM |
9479 | |
| 9480 | eh = (struct ppc_link_hash_entry *) h; | |
| 9481 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9482 | { | |
| 9483 | asection *s = p->sec->output_section; | |
| 9484 | ||
| 9485 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 9486 | { | |
| 4ce794b7 | 9487 | struct bfd_link_info *info = inf; |
| 65f38f15 AM |
9488 | |
| 9489 | info->flags |= DF_TEXTREL; | |
| 9490 | ||
| 9491 | /* Not an error, just cut short the traversal. */ | |
| b34976b6 | 9492 | return FALSE; |
| 65f38f15 AM |
9493 | } |
| 9494 | } | |
| b34976b6 | 9495 | return TRUE; |
| 65f38f15 AM |
9496 | } |
| 9497 | ||
| 9498 | /* Set the sizes of the dynamic sections. */ | |
| 9499 | ||
| b34976b6 | 9500 | static bfd_boolean |
| ee67d69a | 9501 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9502 | struct bfd_link_info *info) |
| 65f38f15 AM |
9503 | { |
| 9504 | struct ppc_link_hash_table *htab; | |
| 9505 | bfd *dynobj; | |
| 9506 | asection *s; | |
| b34976b6 | 9507 | bfd_boolean relocs; |
| 65f38f15 | 9508 | bfd *ibfd; |
| 7865406b | 9509 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9510 | |
| 9511 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9512 | if (htab == NULL) |
| 9513 | return FALSE; | |
| 9514 | ||
| 65f38f15 AM |
9515 | dynobj = htab->elf.dynobj; |
| 9516 | if (dynobj == NULL) | |
| 9517 | abort (); | |
| 9518 | ||
| 9519 | if (htab->elf.dynamic_sections_created) | |
| 9520 | { | |
| 9521 | /* Set the contents of the .interp section to the interpreter. */ | |
| 36af4a4e | 9522 | if (info->executable) |
| 65f38f15 | 9523 | { |
| 3d4d4302 | 9524 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9525 | if (s == NULL) |
| 9526 | abort (); | |
| eea6121a | 9527 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9528 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9529 | } | |
| 9530 | } | |
| 9531 | ||
| 9532 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9533 | relocs. */ | |
| 9534 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 9535 | { | |
| 411e1bfb AM |
9536 | struct got_entry **lgot_ents; |
| 9537 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9538 | struct plt_entry **local_plt; |
| 9539 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9540 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9541 | bfd_size_type locsymcount; |
| 9542 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9543 | |
| 0c8d6e5c | 9544 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9545 | continue; |
| 9546 | ||
| 9547 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9548 | { | |
| 19e08130 | 9549 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9550 | |
| 6edfbbad | 9551 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9552 | { |
| ec338859 AM |
9553 | if (!bfd_is_abs_section (p->sec) |
| 9554 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9555 | { | |
| 9556 | /* Input section has been discarded, either because | |
| 9557 | it is a copy of a linkonce section or due to | |
| 9558 | linker script /DISCARD/, so we'll be discarding | |
| 9559 | the relocs too. */ | |
| 9560 | } | |
| 248866a8 | 9561 | else if (p->count != 0) |
| ec338859 | 9562 | { |
| 19e08130 AM |
9563 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9564 | if (p->ifunc) | |
| 25f23106 | 9565 | srel = htab->reliplt; |
| eea6121a | 9566 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9567 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9568 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9569 | } |
| 65f38f15 AM |
9570 | } |
| 9571 | } | |
| 9572 | ||
| 411e1bfb AM |
9573 | lgot_ents = elf_local_got_ents (ibfd); |
| 9574 | if (!lgot_ents) | |
| 65f38f15 AM |
9575 | continue; |
| 9576 | ||
| 0ffa91dd | 9577 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9578 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9579 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9580 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9581 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9582 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9583 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9584 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9585 | { |
| 0b8bcf0d | 9586 | struct got_entry **pent, *ent; |
| 411e1bfb | 9587 | |
| 0b8bcf0d AM |
9588 | pent = lgot_ents; |
| 9589 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9590 | if (ent->got.refcount > 0) |
| 9591 | { | |
| e7b938ca | 9592 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9593 | { |
| 927be08e | 9594 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9595 | *pent = ent->next; |
| 411e1bfb AM |
9596 | } |
| 9597 | else | |
| 9598 | { | |
| 19e08130 AM |
9599 | unsigned int ent_size = 8; |
| 9600 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9601 | ||
| eea6121a | 9602 | ent->got.offset = s->size; |
| e7b938ca | 9603 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9604 | { |
| 19e08130 AM |
9605 | ent_size *= 2; |
| 9606 | rel_size *= 2; | |
| 9607 | } | |
| 9608 | s->size += ent_size; | |
| 9609 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9610 | { | |
| 9611 | htab->reliplt->size += rel_size; | |
| 9612 | htab->got_reli_size += rel_size; | |
| 9613 | } | |
| 9614 | else if (info->shared) | |
| 9615 | { | |
| 9616 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9617 | srel->size += rel_size; | |
| 927be08e | 9618 | } |
| 0b8bcf0d | 9619 | pent = &ent->next; |
| 411e1bfb AM |
9620 | } |
| 9621 | } | |
| 9622 | else | |
| 0b8bcf0d | 9623 | *pent = ent->next; |
| 65f38f15 | 9624 | } |
| e054468f AM |
9625 | |
| 9626 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9627 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9628 | { | |
| 9629 | struct plt_entry *ent; | |
| 9630 | ||
| 9631 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9632 | if (ent->plt.refcount > 0) | |
| 9633 | { | |
| 91d6fa6a | 9634 | s = htab->iplt; |
| e054468f | 9635 | ent->plt.offset = s->size; |
| b9e5796b | 9636 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 9637 | |
| 25f23106 | 9638 | htab->reliplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9639 | } |
| 9640 | else | |
| 9641 | ent->plt.offset = (bfd_vma) -1; | |
| 9642 | } | |
| 65f38f15 AM |
9643 | } |
| 9644 | ||
| 9645 | /* Allocate global sym .plt and .got entries, and space for global | |
| 9646 | sym dynamic relocs. */ | |
| 4ce794b7 | 9647 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| 65f38f15 | 9648 | |
| 7865406b | 9649 | first_tlsld = NULL; |
| 102890f0 AM |
9650 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 9651 | { | |
| 7865406b AM |
9652 | struct got_entry *ent; |
| 9653 | ||
| 0c8d6e5c | 9654 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
9655 | continue; |
| 9656 | ||
| 7865406b AM |
9657 | ent = ppc64_tlsld_got (ibfd); |
| 9658 | if (ent->got.refcount > 0) | |
| 102890f0 | 9659 | { |
| 7865406b | 9660 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 9661 | { |
| 7865406b AM |
9662 | ent->is_indirect = TRUE; |
| 9663 | ent->got.ent = first_tlsld; | |
| 9664 | } | |
| 9665 | else | |
| 9666 | { | |
| 9667 | if (first_tlsld == NULL) | |
| 9668 | first_tlsld = ent; | |
| 9669 | s = ppc64_elf_tdata (ibfd)->got; | |
| 9670 | ent->got.offset = s->size; | |
| 9671 | ent->owner = ibfd; | |
| 9672 | s->size += 16; | |
| 9673 | if (info->shared) | |
| 9674 | { | |
| 9675 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9676 | srel->size += sizeof (Elf64_External_Rela); | |
| 9677 | } | |
| 102890f0 AM |
9678 | } |
| 9679 | } | |
| 9680 | else | |
| 7865406b | 9681 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
9682 | } |
| 9683 | ||
| 65f38f15 AM |
9684 | /* We now have determined the sizes of the various dynamic sections. |
| 9685 | Allocate memory for them. */ | |
| b34976b6 | 9686 | relocs = FALSE; |
| 65f38f15 AM |
9687 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 9688 | { | |
| 9689 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 9690 | continue; | |
| 9691 | ||
| 4ce794b7 | 9692 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
9693 | /* These haven't been allocated yet; don't strip. */ |
| 9694 | continue; | |
| e717da7e AM |
9695 | else if (s == htab->got |
| 9696 | || s == htab->plt | |
| e054468f | 9697 | || s == htab->iplt |
| c456f082 AM |
9698 | || s == htab->glink |
| 9699 | || s == htab->dynbss) | |
| 65f38f15 AM |
9700 | { |
| 9701 | /* Strip this section if we don't need it; see the | |
| 9702 | comment below. */ | |
| 5bd4f169 | 9703 | } |
| 58d180e8 AM |
9704 | else if (s == htab->glink_eh_frame) |
| 9705 | { | |
| 9706 | if (!bfd_is_abs_section (s->output_section)) | |
| 9707 | /* Not sized yet. */ | |
| 9708 | continue; | |
| 9709 | } | |
| 70cc837d | 9710 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 9711 | { |
| c456f082 | 9712 | if (s->size != 0) |
| 5bd4f169 | 9713 | { |
| 4ce794b7 | 9714 | if (s != htab->relplt) |
| b34976b6 | 9715 | relocs = TRUE; |
| 5bd4f169 AM |
9716 | |
| 9717 | /* We use the reloc_count field as a counter if we need | |
| 9718 | to copy relocs into the output file. */ | |
| 9719 | s->reloc_count = 0; | |
| 9720 | } | |
| 9721 | } | |
| 65f38f15 | 9722 | else |
| 5bd4f169 AM |
9723 | { |
| 9724 | /* It's not one of our sections, so don't allocate space. */ | |
| 9725 | continue; | |
| 9726 | } | |
| 9727 | ||
| eea6121a | 9728 | if (s->size == 0) |
| 5bd4f169 | 9729 | { |
| c456f082 AM |
9730 | /* If we don't need this section, strip it from the |
| 9731 | output file. This is mostly to handle .rela.bss and | |
| 9732 | .rela.plt. We must create both sections in | |
| 9733 | create_dynamic_sections, because they must be created | |
| 9734 | before the linker maps input sections to output | |
| 9735 | sections. The linker does that before | |
| 9736 | adjust_dynamic_symbol is called, and it is that | |
| 9737 | function which decides whether anything needs to go | |
| 9738 | into these sections. */ | |
| 8423293d | 9739 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
9740 | continue; |
| 9741 | } | |
| 9742 | ||
| c456f082 | 9743 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
9744 | continue; |
| 9745 | ||
| 65f38f15 AM |
9746 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 9747 | here in case unused entries are not reclaimed before the | |
| 9748 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
9749 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 9750 | sections instead of garbage. | |
| 9751 | We also rely on the section contents being zero when writing | |
| 9752 | the GOT. */ | |
| eea6121a | 9753 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 9754 | if (s->contents == NULL) |
| b34976b6 | 9755 | return FALSE; |
| 5bd4f169 AM |
9756 | } |
| 9757 | ||
| e717da7e AM |
9758 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 9759 | { | |
| 0c8d6e5c | 9760 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
9761 | continue; |
| 9762 | ||
| e717da7e AM |
9763 | s = ppc64_elf_tdata (ibfd)->got; |
| 9764 | if (s != NULL && s != htab->got) | |
| 9765 | { | |
| eea6121a | 9766 | if (s->size == 0) |
| 8423293d | 9767 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
9768 | else |
| 9769 | { | |
| eea6121a | 9770 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
9771 | if (s->contents == NULL) |
| 9772 | return FALSE; | |
| 9773 | } | |
| 9774 | } | |
| 9775 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 9776 | if (s != NULL) | |
| 9777 | { | |
| eea6121a | 9778 | if (s->size == 0) |
| 8423293d | 9779 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
9780 | else |
| 9781 | { | |
| eea6121a | 9782 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
9783 | if (s->contents == NULL) |
| 9784 | return FALSE; | |
| 9785 | relocs = TRUE; | |
| 9786 | s->reloc_count = 0; | |
| 9787 | } | |
| 9788 | } | |
| 9789 | } | |
| 9790 | ||
| e86ce104 | 9791 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 9792 | { |
| e8910a83 AM |
9793 | bfd_boolean tls_opt; |
| 9794 | ||
| 5bd4f169 AM |
9795 | /* Add some entries to the .dynamic section. We fill in the |
| 9796 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 9797 | must add the entries now so that we get the correct size for | |
| 9798 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 9799 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 9800 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 9801 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 9802 | |
| 36af4a4e | 9803 | if (info->executable) |
| 5bd4f169 | 9804 | { |
| dc810e39 | 9805 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 9806 | return FALSE; |
| 5bd4f169 AM |
9807 | } |
| 9808 | ||
| eea6121a | 9809 | if (htab->plt != NULL && htab->plt->size != 0) |
| 5bd4f169 | 9810 | { |
| dc810e39 AM |
9811 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 9812 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 9813 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
9814 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 9815 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 9816 | return FALSE; |
| 5bd4f169 AM |
9817 | } |
| 9818 | ||
| ee67d69a | 9819 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
9820 | { |
| 9821 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 9822 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 9823 | return FALSE; |
| 19397422 AM |
9824 | } |
| 9825 | ||
| e8910a83 AM |
9826 | tls_opt = (!htab->no_tls_get_addr_opt |
| 9827 | && htab->tls_get_addr_fd != NULL | |
| 9828 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 9829 | if (tls_opt || !htab->opd_abi) | |
| 9830 | { | |
| 9831 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 9832 | return FALSE; | |
| 9833 | } | |
| a7f2871e | 9834 | |
| 5bd4f169 AM |
9835 | if (relocs) |
| 9836 | { | |
| dc810e39 AM |
9837 | if (!add_dynamic_entry (DT_RELA, 0) |
| 9838 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 9839 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 9840 | return FALSE; |
| 5bd4f169 | 9841 | |
| 65f38f15 AM |
9842 | /* If any dynamic relocs apply to a read-only section, |
| 9843 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 9844 | if ((info->flags & DF_TEXTREL) == 0) |
| 4ce794b7 | 9845 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
| 5bd4f169 | 9846 | |
| 65f38f15 | 9847 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 9848 | { |
| 65f38f15 | 9849 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 9850 | return FALSE; |
| 5bd4f169 | 9851 | } |
| 5bd4f169 | 9852 | } |
| 5bd4f169 | 9853 | } |
| 65f38f15 | 9854 | #undef add_dynamic_entry |
| 5bd4f169 | 9855 | |
| b34976b6 | 9856 | return TRUE; |
| 5bd4f169 AM |
9857 | } |
| 9858 | ||
| 721956f4 | 9859 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 9860 | |
| 4ce794b7 AM |
9861 | static inline enum ppc_stub_type |
| 9862 | ppc_type_of_stub (asection *input_sec, | |
| 9863 | const Elf_Internal_Rela *rel, | |
| 9864 | struct ppc_link_hash_entry **hash, | |
| e054468f | 9865 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
9866 | bfd_vma destination, |
| 9867 | unsigned long local_off) | |
| 5bd4f169 | 9868 | { |
| 721956f4 AM |
9869 | struct ppc_link_hash_entry *h = *hash; |
| 9870 | bfd_vma location; | |
| 9871 | bfd_vma branch_offset; | |
| 9872 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 9873 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 9874 | |
| 721956f4 AM |
9875 | if (h != NULL) |
| 9876 | { | |
| e054468f | 9877 | struct plt_entry *ent; |
| 7fe2b9a6 | 9878 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
9879 | if (h->oh != NULL |
| 9880 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
9881 | { |
| 9882 | fdh = ppc_follow_link (h->oh); | |
| 9883 | *hash = fdh; | |
| 9884 | } | |
| 8387904d | 9885 | |
| e054468f AM |
9886 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 9887 | if (ent->addend == rel->r_addend | |
| 9888 | && ent->plt.offset != (bfd_vma) -1) | |
| 9889 | { | |
| e054468f AM |
9890 | *plt_ent = ent; |
| 9891 | return ppc_stub_plt_call; | |
| 9892 | } | |
| 5bd4f169 | 9893 | |
| 7fe2b9a6 AM |
9894 | /* Here, we know we don't have a plt entry. If we don't have a |
| 9895 | either a defined function descriptor or a defined entry symbol | |
| 9896 | in a regular object file, then it is pointless trying to make | |
| 9897 | any other type of stub. */ | |
| 854b41e7 AM |
9898 | if (!is_static_defined (&fdh->elf) |
| 9899 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 9900 | return ppc_stub_none; |
| 5d1634d7 | 9901 | } |
| e054468f AM |
9902 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 9903 | { | |
| 9904 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 9905 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 9906 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 9907 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9908 | ||
| 9909 | if (local_plt[r_symndx] != NULL) | |
| 9910 | { | |
| 9911 | struct plt_entry *ent; | |
| 9912 | ||
| 9913 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 9914 | if (ent->addend == rel->r_addend | |
| 9915 | && ent->plt.offset != (bfd_vma) -1) | |
| 9916 | { | |
| 9917 | *plt_ent = ent; | |
| 9918 | return ppc_stub_plt_call; | |
| 9919 | } | |
| 9920 | } | |
| 9921 | } | |
| 5d1634d7 | 9922 | |
| 721956f4 AM |
9923 | /* Determine where the call point is. */ |
| 9924 | location = (input_sec->output_offset | |
| 9925 | + input_sec->output_section->vma | |
| 9926 | + rel->r_offset); | |
| 5d1634d7 | 9927 | |
| 721956f4 AM |
9928 | branch_offset = destination - location; |
| 9929 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 9930 | |
| 721956f4 AM |
9931 | /* Determine if a long branch stub is needed. */ |
| 9932 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 9933 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 9934 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 9935 | |
| 6911b7dc | 9936 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
9937 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 9938 | is needed later. */ | |
| 9939 | return ppc_stub_long_branch; | |
| 5d1634d7 | 9940 | |
| 721956f4 | 9941 | return ppc_stub_none; |
| 5d1634d7 AM |
9942 | } |
| 9943 | ||
| 794e51c0 AM |
9944 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 9945 | to update a plt entry in one thread and have another thread see a | |
| 9946 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 9947 | barrier in the call stub. One solution is to make the load of the | |
| 9948 | toc word seem to appear to depend on the load of the function entry | |
| 9949 | word. Another solution is to test for r2 being zero, and branch to | |
| 9950 | the appropriate glink entry if so. | |
| 9951 | ||
| 9952 | . fake dep barrier compare | |
| 71a39c98 AM |
9953 | . ld 12,xxx(2) ld 12,xxx(2) |
| 9954 | . mtctr 12 mtctr 12 | |
| 9955 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
9956 | . add 2,2,11 cmpldi 2,0 |
| 9957 | . ld 2,xxx+8(2) bnectr+ | |
| 9958 | . bctr b <glink_entry> | |
| 9959 | ||
| 9960 | The solution involving the compare turns out to be faster, so | |
| 9961 | that's what we use unless the branch won't reach. */ | |
| 9962 | ||
| 9963 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 9964 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 9965 | |
| 5d1634d7 AM |
9966 | #define PPC_LO(v) ((v) & 0xffff) |
| 9967 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 9968 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 9969 | ||
| 794e51c0 AM |
9970 | static inline unsigned int |
| 9971 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 9972 | struct ppc_stub_hash_entry *stub_entry, | |
| 9973 | bfd_vma off) | |
| 9974 | { | |
| b9e5796b AM |
9975 | unsigned size = 12; |
| 9976 | ||
| 9977 | if (ALWAYS_EMIT_R2SAVE | |
| 9978 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 9979 | size += 4; | |
| 9980 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 9981 | size += 4; |
| b9e5796b AM |
9982 | if (htab->opd_abi) |
| 9983 | { | |
| 9984 | size += 4; | |
| 9985 | if (htab->plt_static_chain) | |
| 9986 | size += 4; | |
| 9987 | if (htab->plt_thread_safe) | |
| 9988 | size += 8; | |
| 9989 | if (PPC_HA (off + 8 + 8 * htab->plt_static_chain) != PPC_HA (off)) | |
| 9990 | size += 4; | |
| 9991 | } | |
| 794e51c0 AM |
9992 | if (stub_entry->h != NULL |
| 9993 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 9994 | || stub_entry->h == htab->tls_get_addr) | |
| 9995 | && !htab->no_tls_get_addr_opt) | |
| 9996 | size += 13 * 4; | |
| 9997 | return size; | |
| 9998 | } | |
| 9999 | ||
| 10000 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10001 | then return the padding needed to do so. */ | |
| 10002 | static inline unsigned int | |
| 10003 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10004 | struct ppc_stub_hash_entry *stub_entry, | |
| 10005 | bfd_vma plt_off) | |
| 10006 | { | |
| 10007 | int stub_align = 1 << htab->plt_stub_align; | |
| 10008 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); | |
| 10009 | bfd_vma stub_off = stub_entry->stub_sec->size; | |
| 10010 | ||
| 10011 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| 10012 | > (stub_size & -stub_align)) | |
| 10013 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10014 | return 0; | |
| 10015 | } | |
| 10016 | ||
| 10017 | /* Build a .plt call stub. */ | |
| 10018 | ||
| 10019 | static inline bfd_byte * | |
| 10020 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10021 | struct ppc_stub_hash_entry *stub_entry, | |
| 10022 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10023 | { | |
| 10024 | bfd *obfd = htab->stub_bfd; | |
| b9e5796b | 10025 | bfd_boolean plt_load_toc = htab->opd_abi; |
| 794e51c0 AM |
10026 | bfd_boolean plt_static_chain = htab->plt_static_chain; |
| 10027 | bfd_boolean plt_thread_safe = htab->plt_thread_safe; | |
| 10028 | bfd_boolean use_fake_dep = plt_thread_safe; | |
| 10029 | bfd_vma cmp_branch_off = 0; | |
| 10030 | ||
| 10031 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10032 | && plt_load_toc |
| 794e51c0 AM |
10033 | && plt_thread_safe |
| 10034 | && !(stub_entry->h != NULL | |
| 10035 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10036 | || stub_entry->h == htab->tls_get_addr) | |
| 10037 | && !htab->no_tls_get_addr_opt)) | |
| 10038 | { | |
| 10039 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10040 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10041 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10042 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10043 | bfd_vma to, from; | |
| 10044 | ||
| 68d62958 AM |
10045 | if (pltindex > 32768) |
| 10046 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10047 | to = (glinkoff |
| 10048 | + htab->glink->output_offset | |
| 10049 | + htab->glink->output_section->vma); | |
| 10050 | from = (p - stub_entry->stub_sec->contents | |
| 10051 | + 4 * (ALWAYS_EMIT_R2SAVE | |
| 10052 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10053 | + 4 * (PPC_HA (offset) != 0) | |
| 10054 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10055 | != PPC_HA (offset)) | |
| 10056 | + 4 * (plt_static_chain != 0) | |
| 10057 | + 20 | |
| 10058 | + stub_entry->stub_sec->output_offset | |
| 10059 | + stub_entry->stub_sec->output_section->vma); | |
| 10060 | cmp_branch_off = to - from; | |
| 10061 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10062 | } | |
| 10063 | ||
| ac2df442 AM |
10064 | if (PPC_HA (offset) != 0) |
| 10065 | { | |
| 176a0d42 AM |
10066 | if (r != NULL) |
| 10067 | { | |
| 794e51c0 AM |
10068 | if (ALWAYS_EMIT_R2SAVE |
| 10069 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10070 | r[0].r_offset += 4; | |
| 176a0d42 | 10071 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10072 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10073 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10074 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10075 | if (plt_load_toc) |
| 176a0d42 | 10076 | { |
| b9e5796b | 10077 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10078 | { |
| b9e5796b AM |
10079 | r[2].r_offset = r[1].r_offset + 4; |
| 10080 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10081 | r[2].r_addend = r[0].r_addend; | |
| 10082 | } | |
| 10083 | else | |
| 10084 | { | |
| 10085 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10086 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10087 | r[2].r_addend = r[0].r_addend + 8; | |
| 10088 | if (plt_static_chain) | |
| 10089 | { | |
| 10090 | r[3].r_offset = r[2].r_offset + 4; | |
| 10091 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10092 | r[3].r_addend = r[0].r_addend + 16; | |
| 10093 | } | |
| c7131b65 | 10094 | } |
| 176a0d42 AM |
10095 | } |
| 10096 | } | |
| 794e51c0 AM |
10097 | if (ALWAYS_EMIT_R2SAVE |
| 10098 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10099 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 AM |
10100 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; |
| 10101 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| b9e5796b AM |
10102 | if (plt_load_toc |
| 10103 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10104 | { |
| 71a39c98 | 10105 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10106 | offset = 0; |
| 10107 | } | |
| 71a39c98 | 10108 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10109 | if (plt_load_toc) |
| 794e51c0 | 10110 | { |
| b9e5796b AM |
10111 | if (use_fake_dep) |
| 10112 | { | |
| 10113 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10114 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10115 | } | |
| 10116 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10117 | if (plt_static_chain) | |
| 10118 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10119 | } |
| ac2df442 AM |
10120 | } |
| 10121 | else | |
| 10122 | { | |
| 176a0d42 AM |
10123 | if (r != NULL) |
| 10124 | { | |
| 794e51c0 AM |
10125 | if (ALWAYS_EMIT_R2SAVE |
| 10126 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10127 | r[0].r_offset += 4; | |
| 176a0d42 | 10128 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10129 | if (plt_load_toc) |
| 176a0d42 | 10130 | { |
| b9e5796b | 10131 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10132 | { |
| b9e5796b AM |
10133 | r[1].r_offset = r[0].r_offset + 4; |
| 10134 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10135 | r[1].r_addend = r[0].r_addend; | |
| 10136 | } | |
| 10137 | else | |
| 10138 | { | |
| 10139 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10140 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10141 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10142 | if (plt_static_chain) | |
| 10143 | { | |
| 10144 | r[2].r_offset = r[1].r_offset + 4; | |
| 10145 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10146 | r[2].r_addend = r[0].r_addend + 8; | |
| 10147 | } | |
| c7131b65 | 10148 | } |
| 176a0d42 AM |
10149 | } |
| 10150 | } | |
| 794e51c0 AM |
10151 | if (ALWAYS_EMIT_R2SAVE |
| 10152 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10153 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10154 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10155 | if (plt_load_toc |
| 10156 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10157 | { |
| 10158 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10159 | offset = 0; | |
| 10160 | } | |
| 71a39c98 | 10161 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10162 | if (plt_load_toc) |
| 794e51c0 | 10163 | { |
| b9e5796b AM |
10164 | if (use_fake_dep) |
| 10165 | { | |
| 10166 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10167 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10168 | } | |
| 10169 | if (plt_static_chain) | |
| 10170 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10171 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10172 | } |
| ac2df442 | 10173 | } |
| b9e5796b | 10174 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10175 | { |
| 10176 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10177 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10178 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10179 | } |
| 10180 | else | |
| 10181 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10182 | return p; |
| 10183 | } | |
| 10184 | ||
| a7f2871e AM |
10185 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10186 | ||
| 10187 | #define LD_R11_0R3 0xe9630000 | |
| 10188 | #define LD_R12_0R3 0xe9830000 | |
| 10189 | #define MR_R0_R3 0x7c601b78 | |
| 10190 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10191 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10192 | #define BEQLR 0x4d820020 | |
| 10193 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10194 | #define STD_R11_0R1 0xf9610000 |
| 10195 | #define BCTRL 0x4e800421 | |
| 10196 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10197 | #define MTLR_R11 0x7d6803a6 |
| 10198 | ||
| 10199 | static inline bfd_byte * | |
| 794e51c0 AM |
10200 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10201 | struct ppc_stub_hash_entry *stub_entry, | |
| 10202 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10203 | { |
| 794e51c0 AM |
10204 | bfd *obfd = htab->stub_bfd; |
| 10205 | ||
| a7f2871e AM |
10206 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10207 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10208 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10209 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10210 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10211 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10212 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10213 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10214 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10215 | |
| 10216 | if (r != NULL) | |
| 10217 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10218 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10219 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10220 | ||
| a078d95a AM |
10221 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| 10222 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; | |
| a7f2871e AM |
10223 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10224 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10225 | ||
| 10226 | return p; | |
| 10227 | } | |
| 10228 | ||
| 176a0d42 AM |
10229 | static Elf_Internal_Rela * |
| 10230 | get_relocs (asection *sec, int count) | |
| 10231 | { | |
| 10232 | Elf_Internal_Rela *relocs; | |
| 10233 | struct bfd_elf_section_data *elfsec_data; | |
| 10234 | ||
| 10235 | elfsec_data = elf_section_data (sec); | |
| 10236 | relocs = elfsec_data->relocs; | |
| 10237 | if (relocs == NULL) | |
| 10238 | { | |
| 10239 | bfd_size_type relsize; | |
| 10240 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10241 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10242 | if (relocs == NULL) | |
| 10243 | return NULL; | |
| 10244 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10245 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10246 | sizeof (Elf_Internal_Shdr)); | |
| 10247 | if (elfsec_data->rela.hdr == NULL) | |
| 10248 | return NULL; | |
| 10249 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10250 | * sizeof (Elf64_External_Rela)); | |
| 10251 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10252 | sec->reloc_count = 0; |
| 10253 | } | |
| 10254 | relocs += sec->reloc_count; | |
| 10255 | sec->reloc_count += count; | |
| 10256 | return relocs; | |
| 10257 | } | |
| 10258 | ||
| aa374f67 | 10259 | static bfd_vma |
| 25f53a85 | 10260 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10261 | struct ppc_stub_hash_entry *stub_entry) |
| 10262 | { | |
| 25f53a85 | 10263 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| aa374f67 AM |
10264 | bfd_vma r2off = htab->stub_group[stub_entry->target_section->id].toc_off; |
| 10265 | ||
| 10266 | if (r2off == 0) | |
| 10267 | { | |
| 10268 | /* Support linking -R objects. Get the toc pointer from the | |
| 10269 | opd entry. */ | |
| 10270 | char buf[8]; | |
| b9e5796b AM |
10271 | if (!htab->opd_abi) |
| 10272 | return r2off; | |
| aa374f67 AM |
10273 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10274 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10275 | ||
| 10276 | if (strcmp (opd->name, ".opd") != 0 | |
| 10277 | || opd->reloc_count != 0) | |
| 10278 | { | |
| bc30df16 | 10279 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10280 | stub_entry->h->elf.root.root.string); |
| aa374f67 AM |
10281 | bfd_set_error (bfd_error_bad_value); |
| 10282 | return 0; | |
| 10283 | } | |
| 10284 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| 10285 | return 0; | |
| 10286 | r2off = bfd_get_64 (opd->owner, buf); | |
| 25f53a85 | 10287 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 AM |
10288 | } |
| 10289 | r2off -= htab->stub_group[stub_entry->id_sec->id].toc_off; | |
| 10290 | return r2off; | |
| 10291 | } | |
| 10292 | ||
| b34976b6 | 10293 | static bfd_boolean |
| 4ce794b7 | 10294 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10295 | { |
| 721956f4 AM |
10296 | struct ppc_stub_hash_entry *stub_entry; |
| 10297 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10298 | struct bfd_link_info *info; |
| 10299 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10300 | bfd_byte *loc; |
| 10301 | bfd_byte *p; | |
| ee75fd95 | 10302 | bfd_vma dest, off; |
| 721956f4 | 10303 | int size; |
| 176a0d42 | 10304 | Elf_Internal_Rela *r; |
| e054468f | 10305 | asection *plt; |
| 5d1634d7 | 10306 | |
| 721956f4 AM |
10307 | /* Massage our args to the form they really have. */ |
| 10308 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10309 | info = in_arg; |
| 5d1634d7 | 10310 | |
| 5d1634d7 | 10311 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10312 | if (htab == NULL) |
| 10313 | return FALSE; | |
| 5d1634d7 | 10314 | |
| 721956f4 | 10315 | /* Make a note of the offset within the stubs for this entry. */ |
| eea6121a | 10316 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
| 97b639ba | 10317 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; |
| 721956f4 | 10318 | |
| 4ce794b7 | 10319 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10320 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10321 | { |
| 721956f4 | 10322 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10323 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10324 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10325 | dest = (stub_entry->target_value |
| 10326 | + stub_entry->target_section->output_offset | |
| 10327 | + stub_entry->target_section->output_section->vma); | |
| 10328 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10329 | off = dest; | |
| 5d1634d7 | 10330 | |
| 721956f4 AM |
10331 | /* And this is where we are coming from. */ |
| 10332 | off -= (stub_entry->stub_offset | |
| 97b639ba AM |
10333 | + stub_entry->stub_sec->output_offset |
| 10334 | + stub_entry->stub_sec->output_section->vma); | |
| e86ce104 | 10335 | |
| ac2df442 AM |
10336 | size = 4; |
| 10337 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10338 | { |
| 25f53a85 | 10339 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10340 | |
| aa374f67 AM |
10341 | if (r2off == 0) |
| 10342 | { | |
| 10343 | htab->stub_error = TRUE; | |
| 10344 | return FALSE; | |
| 10345 | } | |
| a078d95a | 10346 | bfd_put_32 (htab->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10347 | loc += 4; |
| ac2df442 AM |
10348 | size = 12; |
| 10349 | if (PPC_HA (r2off) != 0) | |
| 10350 | { | |
| 10351 | size = 16; | |
| 10352 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 10353 | loc += 4; | |
| 10354 | } | |
| 97b639ba | 10355 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
| ad8e1ba5 | 10356 | loc += 4; |
| ac2df442 | 10357 | off -= size - 4; |
| ad8e1ba5 | 10358 | } |
| 97b639ba | 10359 | bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10360 | |
| 5c3dead3 AM |
10361 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10362 | { | |
| bc30df16 AM |
10363 | info->callbacks->einfo |
| 10364 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10365 | stub_entry->root.string); | |
| 5c3dead3 AM |
10366 | htab->stub_error = TRUE; |
| 10367 | return FALSE; | |
| 10368 | } | |
| ee75fd95 AM |
10369 | |
| 10370 | if (info->emitrelocations) | |
| 10371 | { | |
| 176a0d42 AM |
10372 | r = get_relocs (stub_entry->stub_sec, 1); |
| 10373 | if (r == NULL) | |
| 10374 | return FALSE; | |
| ee75fd95 AM |
10375 | r->r_offset = loc - stub_entry->stub_sec->contents; |
| 10376 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); | |
| 10377 | r->r_addend = dest; | |
| 10378 | if (stub_entry->h != NULL) | |
| 10379 | { | |
| 10380 | struct elf_link_hash_entry **hashes; | |
| 10381 | unsigned long symndx; | |
| 10382 | struct ppc_link_hash_entry *h; | |
| 10383 | ||
| 10384 | hashes = elf_sym_hashes (htab->stub_bfd); | |
| 10385 | if (hashes == NULL) | |
| 10386 | { | |
| 10387 | bfd_size_type hsize; | |
| 10388 | ||
| 10389 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| 10390 | hashes = bfd_zalloc (htab->stub_bfd, hsize); | |
| 10391 | if (hashes == NULL) | |
| 10392 | return FALSE; | |
| 10393 | elf_sym_hashes (htab->stub_bfd) = hashes; | |
| 10394 | htab->stub_globals = 1; | |
| 10395 | } | |
| 10396 | symndx = htab->stub_globals++; | |
| 10397 | h = stub_entry->h; | |
| 10398 | hashes[symndx] = &h->elf; | |
| 10399 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10400 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10401 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10402 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10403 | /* H is an opd symbol. The addend must be zero. */ | |
| 10404 | r->r_addend = 0; | |
| 10405 | else | |
| 10406 | { | |
| 10407 | off = (h->elf.root.u.def.value | |
| 10408 | + h->elf.root.u.def.section->output_offset | |
| 10409 | + h->elf.root.u.def.section->output_section->vma); | |
| 10410 | r->r_addend -= off; | |
| 10411 | } | |
| 10412 | } | |
| 10413 | } | |
| 721956f4 | 10414 | break; |
| e86ce104 | 10415 | |
| 721956f4 | 10416 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10417 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10418 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10419 | stub_entry->root.string + 9, | |
| b34976b6 | 10420 | FALSE, FALSE); |
| 721956f4 AM |
10421 | if (br_entry == NULL) |
| 10422 | { | |
| 8de848d8 | 10423 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10424 | stub_entry->root.string); |
| b34976b6 AM |
10425 | htab->stub_error = TRUE; |
| 10426 | return FALSE; | |
| 721956f4 AM |
10427 | } |
| 10428 | ||
| 176a0d42 AM |
10429 | dest = (stub_entry->target_value |
| 10430 | + stub_entry->target_section->output_offset | |
| 10431 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10432 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10433 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10434 | |
| 176a0d42 | 10435 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10436 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10437 | |
| f94498ff | 10438 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10439 | { |
| f94498ff | 10440 | br_entry->iter = 0; |
| 84f5d08e | 10441 | |
| f94498ff | 10442 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10443 | { |
| f94498ff AM |
10444 | /* Create a reloc for the branch lookup table entry. */ |
| 10445 | Elf_Internal_Rela rela; | |
| 10446 | bfd_byte *rl; | |
| 10447 | ||
| 10448 | rela.r_offset = (br_entry->offset | |
| 10449 | + htab->brlt->output_offset | |
| 10450 | + htab->brlt->output_section->vma); | |
| 10451 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10452 | rela.r_addend = dest; |
| f94498ff AM |
10453 | |
| 10454 | rl = htab->relbrlt->contents; | |
| 10455 | rl += (htab->relbrlt->reloc_count++ | |
| 10456 | * sizeof (Elf64_External_Rela)); | |
| 10457 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10458 | } | |
| 10459 | else if (info->emitrelocations) | |
| 10460 | { | |
| 176a0d42 AM |
10461 | r = get_relocs (htab->brlt, 1); |
| 10462 | if (r == NULL) | |
| 10463 | return FALSE; | |
| 10464 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10465 | normal reloc processing. Symbols and offsets are not | |
| 10466 | translated from input file to output file form, so | |
| 10467 | set up the offset per the output file. */ | |
| f94498ff AM |
10468 | r->r_offset = (br_entry->offset |
| 10469 | + htab->brlt->output_offset | |
| 10470 | + htab->brlt->output_section->vma); | |
| 10471 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10472 | r->r_addend = dest; |
| 84f5d08e | 10473 | } |
| 84f5d08e | 10474 | } |
| 721956f4 | 10475 | |
| 176a0d42 AM |
10476 | dest = (br_entry->offset |
| 10477 | + htab->brlt->output_offset | |
| 10478 | + htab->brlt->output_section->vma); | |
| 10479 | ||
| 10480 | off = (dest | |
| 4ce794b7 | 10481 | - elf_gp (htab->brlt->output_section->owner) |
| ad8e1ba5 | 10482 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10483 | |
| ad8e1ba5 | 10484 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10485 | { |
| 25f53a85 | 10486 | info->callbacks->einfo |
| bc30df16 | 10487 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10488 | stub_entry->root.string); |
| 5d1634d7 | 10489 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10490 | htab->stub_error = TRUE; |
| 10491 | return FALSE; | |
| 5d1634d7 | 10492 | } |
| 41bd81ab | 10493 | |
| 176a0d42 AM |
10494 | if (info->emitrelocations) |
| 10495 | { | |
| 10496 | r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0)); | |
| 10497 | if (r == NULL) | |
| 10498 | return FALSE; | |
| 10499 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10500 | if (bfd_big_endian (info->output_bfd)) |
| 10501 | r[0].r_offset += 2; | |
| b9e5796b AM |
10502 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 10503 | && htab->opd_abi) | |
| 176a0d42 AM |
10504 | r[0].r_offset += 4; |
| 10505 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10506 | r[0].r_addend = dest; | |
| 10507 | if (PPC_HA (off) != 0) | |
| 10508 | { | |
| 10509 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10510 | r[1].r_offset = r[0].r_offset + 4; | |
| 10511 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10512 | r[1].r_addend = r[0].r_addend; | |
| 10513 | } | |
| 10514 | } | |
| 10515 | ||
| b9e5796b AM |
10516 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off |
| 10517 | || !htab->opd_abi) | |
| ad8e1ba5 | 10518 | { |
| 176a0d42 | 10519 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10520 | { |
| 10521 | size = 16; | |
| 71a39c98 | 10522 | bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc); |
| ac2df442 | 10523 | loc += 4; |
| 71a39c98 | 10524 | bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc); |
| ac2df442 AM |
10525 | } |
| 10526 | else | |
| 10527 | { | |
| 10528 | size = 12; | |
| 71a39c98 | 10529 | bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 | 10530 | } |
| ad8e1ba5 AM |
10531 | } |
| 10532 | else | |
| 10533 | { | |
| 25f53a85 | 10534 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 AM |
10535 | |
| 10536 | if (r2off == 0) | |
| 10537 | { | |
| 10538 | htab->stub_error = TRUE; | |
| 10539 | return FALSE; | |
| 10540 | } | |
| ad8e1ba5 | 10541 | |
| a078d95a | 10542 | bfd_put_32 (htab->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10543 | loc += 4; |
| ac2df442 | 10544 | size = 20; |
| 176a0d42 | 10545 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10546 | { |
| 10547 | size += 4; | |
| 71a39c98 | 10548 | bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc); |
| ac2df442 | 10549 | loc += 4; |
| 71a39c98 | 10550 | bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc); |
| ac2df442 AM |
10551 | loc += 4; |
| 10552 | } | |
| 10553 | else | |
| 10554 | { | |
| 71a39c98 | 10555 | bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10556 | loc += 4; |
| 10557 | } | |
| 10558 | ||
| 10559 | if (PPC_HA (r2off) != 0) | |
| 10560 | { | |
| 10561 | size += 4; | |
| 10562 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 10563 | loc += 4; | |
| 10564 | } | |
| 97b639ba | 10565 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
| ad8e1ba5 AM |
10566 | } |
| 10567 | loc += 4; | |
| 71a39c98 | 10568 | bfd_put_32 (htab->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10569 | loc += 4; |
| 97b639ba | 10570 | bfd_put_32 (htab->stub_bfd, BCTR, loc); |
| 721956f4 | 10571 | break; |
| 5d1634d7 | 10572 | |
| 721956f4 | 10573 | case ppc_stub_plt_call: |
| 794e51c0 | 10574 | case ppc_stub_plt_call_r2save: |
| e054468f | 10575 | if (stub_entry->h != NULL |
| b31867b6 AM |
10576 | && stub_entry->h->is_func_descriptor |
| 10577 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10578 | { |
| b31867b6 AM |
10579 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10580 | ||
| 10581 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 10582 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. | |
| 10583 | FIXME: We used to define the symbol on one of the call | |
| 10584 | stubs instead, which is why we test symbol section id | |
| 10585 | against htab->top_id in various places. Likely all | |
| 10586 | these checks could now disappear. */ | |
| 10587 | if (fh->elf.root.type == bfd_link_hash_undefined) | |
| 10588 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10589 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10590 | fh->was_undefined = 0; | |
| c862ae31 AM |
10591 | } |
| 10592 | ||
| 721956f4 | 10593 | /* Now build the stub. */ |
| e054468f | 10594 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10595 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10596 | abort (); |
| 10597 | ||
| e054468f | 10598 | plt = htab->plt; |
| 25f23106 AM |
10599 | if (!htab->elf.dynamic_sections_created |
| 10600 | || stub_entry->h == NULL | |
| 10601 | || stub_entry->h->elf.dynindx == -1) | |
| e054468f AM |
10602 | plt = htab->iplt; |
| 10603 | ||
| 10604 | dest += plt->output_offset + plt->output_section->vma; | |
| 10605 | ||
| 10606 | if (stub_entry->h == NULL | |
| 10607 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 10608 | { | |
| 10609 | Elf_Internal_Rela rela; | |
| 10610 | bfd_byte *rl; | |
| 10611 | ||
| 10612 | rela.r_offset = dest; | |
| ee67d69a AM |
10613 | if (htab->opd_abi) |
| 10614 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 10615 | else | |
| 10616 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
10617 | rela.r_addend = (stub_entry->target_value |
| 10618 | + stub_entry->target_section->output_offset | |
| 10619 | + stub_entry->target_section->output_section->vma); | |
| 10620 | ||
| 25f23106 AM |
10621 | rl = (htab->reliplt->contents |
| 10622 | + (htab->reliplt->reloc_count++ | |
| 10623 | * sizeof (Elf64_External_Rela))); | |
| 10624 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
10625 | stub_entry->plt_ent->plt.offset |= 1; |
| 10626 | } | |
| 176a0d42 AM |
10627 | |
| 10628 | off = (dest | |
| e054468f | 10629 | - elf_gp (plt->output_section->owner) |
| 176a0d42 | 10630 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10631 | |
| ad8e1ba5 | 10632 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 10633 | { |
| 25f53a85 | 10634 | info->callbacks->einfo |
| bc30df16 | 10635 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
10636 | stub_entry->h != NULL |
| 10637 | ? stub_entry->h->elf.root.root.string | |
| 10638 | : "<local sym>"); | |
| 721956f4 | 10639 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10640 | htab->stub_error = TRUE; |
| 10641 | return FALSE; | |
| 721956f4 AM |
10642 | } |
| 10643 | ||
| 794e51c0 AM |
10644 | if (htab->plt_stub_align != 0) |
| 10645 | { | |
| 10646 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 10647 | ||
| 10648 | stub_entry->stub_sec->size += pad; | |
| 10649 | stub_entry->stub_offset = stub_entry->stub_sec->size; | |
| 10650 | loc += pad; | |
| 10651 | } | |
| 10652 | ||
| 176a0d42 AM |
10653 | r = NULL; |
| 10654 | if (info->emitrelocations) | |
| 10655 | { | |
| 10656 | r = get_relocs (stub_entry->stub_sec, | |
| c7131b65 AM |
10657 | (2 |
| 10658 | + (PPC_HA (off) != 0) | |
| 10659 | + (htab->plt_static_chain | |
| 10660 | && PPC_HA (off + 16) == PPC_HA (off)))); | |
| 176a0d42 AM |
10661 | if (r == NULL) |
| 10662 | return FALSE; | |
| 10663 | r[0].r_offset = loc - stub_entry->stub_sec->contents; | |
| 7cfbafbc AM |
10664 | if (bfd_big_endian (info->output_bfd)) |
| 10665 | r[0].r_offset += 2; | |
| 176a0d42 AM |
10666 | r[0].r_addend = dest; |
| 10667 | } | |
| a7f2871e AM |
10668 | if (stub_entry->h != NULL |
| 10669 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10670 | || stub_entry->h == htab->tls_get_addr) | |
| 10671 | && !htab->no_tls_get_addr_opt) | |
| 794e51c0 | 10672 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 10673 | else |
| 794e51c0 | 10674 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
10675 | size = p - loc; |
| 10676 | break; | |
| 10677 | ||
| 10678 | default: | |
| 10679 | BFD_FAIL (); | |
| b34976b6 | 10680 | return FALSE; |
| 721956f4 AM |
10681 | } |
| 10682 | ||
| eea6121a | 10683 | stub_entry->stub_sec->size += size; |
| 97b639ba | 10684 | |
| ee75fd95 | 10685 | if (htab->emit_stub_syms) |
| 97b639ba AM |
10686 | { |
| 10687 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
10688 | size_t len1, len2; |
| 10689 | char *name; | |
| 10690 | const char *const stub_str[] = { "long_branch", | |
| 10691 | "long_branch_r2off", | |
| 10692 | "plt_branch", | |
| 10693 | "plt_branch_r2off", | |
| 794e51c0 | 10694 | "plt_call", |
| ee75fd95 AM |
10695 | "plt_call" }; |
| 10696 | ||
| 10697 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 10698 | len2 = strlen (stub_entry->root.string); | |
| 10699 | name = bfd_malloc (len1 + len2 + 2); | |
| 10700 | if (name == NULL) | |
| 10701 | return FALSE; | |
| 10702 | memcpy (name, stub_entry->root.string, 9); | |
| 10703 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 10704 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 10705 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
10706 | if (h == NULL) |
| 10707 | return FALSE; | |
| 10708 | if (h->root.type == bfd_link_hash_new) | |
| 10709 | { | |
| 10710 | h->root.type = bfd_link_hash_defined; | |
| 10711 | h->root.u.def.section = stub_entry->stub_sec; | |
| 10712 | h->root.u.def.value = stub_entry->stub_offset; | |
| f5385ebf AM |
10713 | h->ref_regular = 1; |
| 10714 | h->def_regular = 1; | |
| 10715 | h->ref_regular_nonweak = 1; | |
| 10716 | h->forced_local = 1; | |
| 10717 | h->non_elf = 0; | |
| 97b639ba AM |
10718 | } |
| 10719 | } | |
| 10720 | ||
| b34976b6 | 10721 | return TRUE; |
| 721956f4 AM |
10722 | } |
| 10723 | ||
| 10724 | /* As above, but don't actually build the stub. Just bump offset so | |
| 10725 | we know stub section sizes, and select plt_branch stubs where | |
| 10726 | long_branch stubs won't do. */ | |
| 10727 | ||
| b34976b6 | 10728 | static bfd_boolean |
| 4ce794b7 | 10729 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
10730 | { |
| 10731 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 10732 | struct bfd_link_info *info; |
| 721956f4 AM |
10733 | struct ppc_link_hash_table *htab; |
| 10734 | bfd_vma off; | |
| 10735 | int size; | |
| 10736 | ||
| 10737 | /* Massage our args to the form they really have. */ | |
| 10738 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
10739 | info = in_arg; |
| 10740 | ||
| 10741 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
10742 | if (htab == NULL) |
| 10743 | return FALSE; | |
| 721956f4 | 10744 | |
| 794e51c0 AM |
10745 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 10746 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 10747 | { |
| e054468f AM |
10748 | asection *plt; |
| 10749 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 10750 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 10751 | abort (); |
| e054468f | 10752 | plt = htab->plt; |
| 25f23106 AM |
10753 | if (!htab->elf.dynamic_sections_created |
| 10754 | || stub_entry->h == NULL | |
| 10755 | || stub_entry->h->elf.dynindx == -1) | |
| e054468f AM |
10756 | plt = htab->iplt; |
| 10757 | off += (plt->output_offset | |
| 10758 | + plt->output_section->vma | |
| 10759 | - elf_gp (plt->output_section->owner) | |
| ad8e1ba5 | 10760 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
| 721956f4 | 10761 | |
| 794e51c0 AM |
10762 | size = plt_stub_size (htab, stub_entry, off); |
| 10763 | if (htab->plt_stub_align) | |
| 10764 | size += plt_stub_pad (htab, stub_entry, off); | |
| 176a0d42 AM |
10765 | if (info->emitrelocations) |
| 10766 | { | |
| 10767 | stub_entry->stub_sec->reloc_count | |
| b9e5796b AM |
10768 | += ((PPC_HA (off) != 0) |
| 10769 | + (htab->opd_abi | |
| 10770 | ? 2 + (htab->plt_static_chain | |
| 10771 | && PPC_HA (off + 16) == PPC_HA (off)) | |
| 10772 | : 1)); | |
| 176a0d42 AM |
10773 | stub_entry->stub_sec->flags |= SEC_RELOC; |
| 10774 | } | |
| 721956f4 AM |
10775 | } |
| 10776 | else | |
| 10777 | { | |
| ad8e1ba5 AM |
10778 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 10779 | variants. */ | |
| ac2df442 | 10780 | bfd_vma r2off = 0; |
| 6911b7dc | 10781 | bfd_vma local_off = 0; |
| ac2df442 | 10782 | |
| 721956f4 AM |
10783 | off = (stub_entry->target_value |
| 10784 | + stub_entry->target_section->output_offset | |
| 10785 | + stub_entry->target_section->output_section->vma); | |
| eea6121a | 10786 | off -= (stub_entry->stub_sec->size |
| 721956f4 AM |
10787 | + stub_entry->stub_sec->output_offset |
| 10788 | + stub_entry->stub_sec->output_section->vma); | |
| 10789 | ||
| ad8e1ba5 AM |
10790 | /* Reset the stub type from the plt variant in case we now |
| 10791 | can reach with a shorter stub. */ | |
| 10792 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 10793 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 10794 | ||
| 10795 | size = 4; | |
| 10796 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 10797 | { | |
| 25f53a85 | 10798 | r2off = get_r2off (info, stub_entry); |
| b9e5796b | 10799 | if (r2off == 0 && htab->opd_abi) |
| aa374f67 AM |
10800 | { |
| 10801 | htab->stub_error = TRUE; | |
| 10802 | return FALSE; | |
| 10803 | } | |
| ac2df442 AM |
10804 | size = 12; |
| 10805 | if (PPC_HA (r2off) != 0) | |
| 10806 | size = 16; | |
| 10807 | off -= size - 4; | |
| ad8e1ba5 AM |
10808 | } |
| 10809 | ||
| 6911b7dc AM |
10810 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 10811 | ||
| b9e5796b AM |
10812 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 10813 | Do the same for -R objects without function descriptors. */ | |
| 10814 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 10815 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| 10816 | && r2off == 0)) | |
| 721956f4 AM |
10817 | { |
| 10818 | struct ppc_branch_hash_entry *br_entry; | |
| 10819 | ||
| 10820 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 10821 | stub_entry->root.string + 9, | |
| b34976b6 | 10822 | TRUE, FALSE); |
| 721956f4 AM |
10823 | if (br_entry == NULL) |
| 10824 | { | |
| 8de848d8 | 10825 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 10826 | stub_entry->root.string); |
| b34976b6 AM |
10827 | htab->stub_error = TRUE; |
| 10828 | return FALSE; | |
| 721956f4 AM |
10829 | } |
| 10830 | ||
| 10831 | if (br_entry->iter != htab->stub_iteration) | |
| 10832 | { | |
| 10833 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
10834 | br_entry->offset = htab->brlt->size; |
| 10835 | htab->brlt->size += 8; | |
| 63bc6f6c | 10836 | |
| ee75fd95 | 10837 | if (htab->relbrlt != NULL) |
| eea6121a | 10838 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
10839 | else if (info->emitrelocations) |
| 10840 | { | |
| 10841 | htab->brlt->reloc_count += 1; | |
| 10842 | htab->brlt->flags |= SEC_RELOC; | |
| 10843 | } | |
| 721956f4 | 10844 | } |
| ad8e1ba5 AM |
10845 | |
| 10846 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
10847 | off = (br_entry->offset |
| 10848 | + htab->brlt->output_offset | |
| 10849 | + htab->brlt->output_section->vma | |
| 10850 | - elf_gp (htab->brlt->output_section->owner) | |
| 10851 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
| 10852 | ||
| 176a0d42 AM |
10853 | if (info->emitrelocations) |
| 10854 | { | |
| 10855 | stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0); | |
| 10856 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 10857 | } | |
| 10858 | ||
| b9e5796b AM |
10859 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off |
| 10860 | || !htab->opd_abi) | |
| ac2df442 AM |
10861 | { |
| 10862 | size = 12; | |
| 176a0d42 | 10863 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10864 | size = 16; |
| 10865 | } | |
| 10866 | else | |
| 10867 | { | |
| 10868 | size = 20; | |
| 176a0d42 | 10869 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10870 | size += 4; |
| 10871 | ||
| 10872 | if (PPC_HA (r2off) != 0) | |
| 10873 | size += 4; | |
| 10874 | } | |
| 721956f4 | 10875 | } |
| 84f5d08e AM |
10876 | else if (info->emitrelocations) |
| 10877 | { | |
| 10878 | stub_entry->stub_sec->reloc_count += 1; | |
| 10879 | stub_entry->stub_sec->flags |= SEC_RELOC; | |
| 10880 | } | |
| 721956f4 AM |
10881 | } |
| 10882 | ||
| eea6121a | 10883 | stub_entry->stub_sec->size += size; |
| b34976b6 | 10884 | return TRUE; |
| 721956f4 AM |
10885 | } |
| 10886 | ||
| 10887 | /* Set up various things so that we can make a list of input sections | |
| 10888 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 10889 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
10890 | |
| 10891 | int | |
| 927be08e AM |
10892 | ppc64_elf_setup_section_lists |
| 10893 | (struct bfd_link_info *info, | |
| 10894 | asection *(*add_stub_section) (const char *, asection *), | |
| 10895 | void (*layout_sections_again) (void)) | |
| 721956f4 AM |
10896 | { |
| 10897 | bfd *input_bfd; | |
| 734b6cf9 | 10898 | int top_id, top_index, id; |
| 721956f4 | 10899 | asection *section; |
| 734b6cf9 | 10900 | asection **input_list; |
| 721956f4 AM |
10901 | bfd_size_type amt; |
| 10902 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 10903 | ||
| 4dfe6ac6 NC |
10904 | if (htab == NULL) |
| 10905 | return -1; | |
| 927be08e AM |
10906 | /* Stash our params away. */ |
| 10907 | htab->add_stub_section = add_stub_section; | |
| 10908 | htab->layout_sections_again = layout_sections_again; | |
| 4c52953f | 10909 | |
| 1e2f5b6e | 10910 | /* Find the top input section id. */ |
| 3d6f9012 | 10911 | for (input_bfd = info->input_bfds, top_id = 3; |
| 721956f4 AM |
10912 | input_bfd != NULL; |
| 10913 | input_bfd = input_bfd->link_next) | |
| 10914 | { | |
| 721956f4 AM |
10915 | for (section = input_bfd->sections; |
| 10916 | section != NULL; | |
| 10917 | section = section->next) | |
| 10918 | { | |
| 10919 | if (top_id < section->id) | |
| 10920 | top_id = section->id; | |
| 10921 | } | |
| 10922 | } | |
| 721956f4 | 10923 | |
| 8f3bab57 | 10924 | htab->top_id = top_id; |
| 721956f4 | 10925 | amt = sizeof (struct map_stub) * (top_id + 1); |
| 4ce794b7 | 10926 | htab->stub_group = bfd_zmalloc (amt); |
| 721956f4 AM |
10927 | if (htab->stub_group == NULL) |
| 10928 | return -1; | |
| 10929 | ||
| 3d6f9012 AM |
10930 | /* Set toc_off for com, und, abs and ind sections. */ |
| 10931 | for (id = 0; id < 3; id++) | |
| 10932 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
| 721956f4 | 10933 | |
| 734b6cf9 AM |
10934 | /* We can't use output_bfd->section_count here to find the top output |
| 10935 | section index as some sections may have been removed, and | |
| 8423293d | 10936 | strip_excluded_output_sections doesn't renumber the indices. */ |
| 927be08e | 10937 | for (section = info->output_bfd->sections, top_index = 0; |
| 734b6cf9 AM |
10938 | section != NULL; |
| 10939 | section = section->next) | |
| 10940 | { | |
| 10941 | if (top_index < section->index) | |
| 10942 | top_index = section->index; | |
| 10943 | } | |
| 10944 | ||
| 10945 | htab->top_index = top_index; | |
| 10946 | amt = sizeof (asection *) * (top_index + 1); | |
| 4ce794b7 | 10947 | input_list = bfd_zmalloc (amt); |
| 734b6cf9 AM |
10948 | htab->input_list = input_list; |
| 10949 | if (input_list == NULL) | |
| 10950 | return -1; | |
| 10951 | ||
| 721956f4 AM |
10952 | return 1; |
| 10953 | } | |
| 10954 | ||
| 927be08e AM |
10955 | /* Set up for first pass at multitoc partitioning. */ |
| 10956 | ||
| 10957 | void | |
| 10958 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 10959 | { | |
| 10960 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 10961 | ||
| 1c865ab2 | 10962 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
10963 | htab->toc_bfd = NULL; |
| 10964 | htab->toc_first_sec = NULL; | |
| 10965 | } | |
| 10966 | ||
| e717da7e AM |
10967 | /* The linker repeatedly calls this function for each TOC input section |
| 10968 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 10969 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 10970 | |
| 927be08e | 10971 | bfd_boolean |
| 4ce794b7 | 10972 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
10973 | { |
| 10974 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 10975 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 10976 | |
| 4dfe6ac6 NC |
10977 | if (htab == NULL) |
| 10978 | return FALSE; | |
| 10979 | ||
| 927be08e | 10980 | if (!htab->second_toc_pass) |
| 4c52953f | 10981 | { |
| 927be08e | 10982 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
10983 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 10984 | ||
| 10985 | if (new_bfd) | |
| bf102f86 AM |
10986 | { |
| 10987 | htab->toc_bfd = isec->owner; | |
| 10988 | htab->toc_first_sec = isec; | |
| 10989 | } | |
| 927be08e | 10990 | |
| bf102f86 AM |
10991 | addr = isec->output_offset + isec->output_section->vma; |
| 10992 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
10993 | limit = 0x80008000; |
| 10994 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 10995 | limit = 0x10000; | |
| 10996 | if (off + isec->size > limit) | |
| bf102f86 AM |
10997 | { |
| 10998 | addr = (htab->toc_first_sec->output_offset | |
| 10999 | + htab->toc_first_sec->output_section->vma); | |
| 11000 | htab->toc_curr = addr; | |
| 11001 | } | |
| 99877b66 | 11002 | |
| 927be08e AM |
11003 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11004 | for the input section to be the offset relative to the | |
| 11005 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11006 | offset allows us to move the toc as a whole without | |
| 11007 | recalculating input elf_gp. */ | |
| 11008 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11009 | off += TOC_BASE_OFF; | |
| 11010 | ||
| 11011 | /* Die if someone uses a linker script that doesn't keep input | |
| 11012 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11013 | if (new_bfd |
| 11014 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11015 | && elf_gp (isec->owner) != off) |
| 11016 | return FALSE; | |
| 11017 | ||
| 11018 | elf_gp (isec->owner) = off; | |
| 11019 | return TRUE; | |
| 4c52953f | 11020 | } |
| 927be08e AM |
11021 | |
| 11022 | /* During the second pass toc_first_sec points to the start of | |
| 11023 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11024 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11025 | if (htab->toc_bfd == isec->owner) | |
| 11026 | return TRUE; | |
| 11027 | htab->toc_bfd = isec->owner; | |
| 11028 | ||
| 11029 | if (htab->toc_first_sec == NULL | |
| 11030 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11031 | { | |
| 11032 | htab->toc_curr = elf_gp (isec->owner); | |
| 11033 | htab->toc_first_sec = isec; | |
| 11034 | } | |
| 11035 | addr = (htab->toc_first_sec->output_offset | |
| 11036 | + htab->toc_first_sec->output_section->vma); | |
| 11037 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11038 | elf_gp (isec->owner) = off; | |
| 11039 | ||
| 11040 | return TRUE; | |
| ad8e1ba5 AM |
11041 | } |
| 11042 | ||
| 927be08e AM |
11043 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11044 | symbol H. */ | |
| 11045 | ||
| 11046 | static bfd_boolean | |
| 11047 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11048 | { | |
| 11049 | if (h->root.type == bfd_link_hash_indirect) | |
| 11050 | return TRUE; | |
| 11051 | ||
| 927be08e AM |
11052 | merge_got_entries (&h->got.glist); |
| 11053 | ||
| 11054 | return TRUE; | |
| 11055 | } | |
| 11056 | ||
| 11057 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11058 | symbol H. */ | |
| 11059 | ||
| 11060 | static bfd_boolean | |
| 11061 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11062 | { | |
| 11063 | struct got_entry *gent; | |
| 11064 | ||
| 11065 | if (h->root.type == bfd_link_hash_indirect) | |
| 11066 | return TRUE; | |
| 11067 | ||
| 927be08e AM |
11068 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11069 | if (!gent->is_indirect) | |
| 11070 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11071 | return TRUE; | |
| 11072 | } | |
| 11073 | ||
| 11074 | /* Called on the first multitoc pass after the last call to | |
| 11075 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11076 | entries. */ | |
| 11077 | ||
| 11078 | bfd_boolean | |
| 11079 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11080 | { |
| 11081 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11082 | struct bfd *ibfd, *ibfd2; |
| 11083 | bfd_boolean done_something; | |
| 11084 | ||
| 11085 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11086 | |
| 7865406b AM |
11087 | if (!htab->do_multi_toc) |
| 11088 | return FALSE; | |
| 11089 | ||
| d0fae19d | 11090 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11091 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11092 | ||
| 11093 | /* And tlsld_got. */ | |
| 11094 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11095 | { | |
| 11096 | struct got_entry *ent, *ent2; | |
| 11097 | ||
| 11098 | if (!is_ppc64_elf (ibfd)) | |
| 11099 | continue; | |
| 11100 | ||
| 11101 | ent = ppc64_tlsld_got (ibfd); | |
| 11102 | if (!ent->is_indirect | |
| 11103 | && ent->got.offset != (bfd_vma) -1) | |
| 11104 | { | |
| 11105 | for (ibfd2 = ibfd->link_next; ibfd2 != NULL; ibfd2 = ibfd2->link_next) | |
| 11106 | { | |
| 11107 | if (!is_ppc64_elf (ibfd2)) | |
| 11108 | continue; | |
| 11109 | ||
| 11110 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11111 | if (!ent2->is_indirect | |
| 11112 | && ent2->got.offset != (bfd_vma) -1 | |
| 11113 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11114 | { | |
| 11115 | ent2->is_indirect = TRUE; | |
| 11116 | ent2->got.ent = ent; | |
| 11117 | } | |
| 11118 | } | |
| 11119 | } | |
| 11120 | } | |
| 11121 | ||
| 11122 | /* Zap sizes of got sections. */ | |
| 11123 | htab->reliplt->rawsize = htab->reliplt->size; | |
| 11124 | htab->reliplt->size -= htab->got_reli_size; | |
| 11125 | htab->got_reli_size = 0; | |
| 11126 | ||
| 11127 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11128 | { | |
| 11129 | asection *got, *relgot; | |
| 11130 | ||
| 11131 | if (!is_ppc64_elf (ibfd)) | |
| 11132 | continue; | |
| 11133 | ||
| 11134 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11135 | if (got != NULL) | |
| 11136 | { | |
| 11137 | got->rawsize = got->size; | |
| 11138 | got->size = 0; | |
| 11139 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11140 | relgot->rawsize = relgot->size; | |
| 11141 | relgot->size = 0; | |
| 11142 | } | |
| 11143 | } | |
| 11144 | ||
| 11145 | /* Now reallocate the got, local syms first. We don't need to | |
| 11146 | allocate section contents again since we never increase size. */ | |
| 11147 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11148 | { | |
| 11149 | struct got_entry **lgot_ents; | |
| 11150 | struct got_entry **end_lgot_ents; | |
| 11151 | struct plt_entry **local_plt; | |
| 11152 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11153 | unsigned char *lgot_masks; |
| 927be08e AM |
11154 | bfd_size_type locsymcount; |
| 11155 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11156 | asection *s; |
| 927be08e AM |
11157 | |
| 11158 | if (!is_ppc64_elf (ibfd)) | |
| 11159 | continue; | |
| 11160 | ||
| 11161 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11162 | if (!lgot_ents) | |
| 11163 | continue; | |
| 11164 | ||
| 11165 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11166 | locsymcount = symtab_hdr->sh_info; | |
| 11167 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11168 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11169 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11170 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11171 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11172 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11173 | { | |
| 11174 | struct got_entry *ent; | |
| 11175 | ||
| 11176 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11177 | { |
| 19e08130 AM |
11178 | unsigned int ent_size = 8; |
| 11179 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11180 | ||
| d0fae19d AM |
11181 | ent->got.offset = s->size; |
| 11182 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11183 | { |
| 19e08130 AM |
11184 | ent_size *= 2; |
| 11185 | rel_size *= 2; | |
| 11186 | } | |
| 11187 | s->size += ent_size; | |
| 11188 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11189 | { | |
| 11190 | htab->reliplt->size += rel_size; | |
| 11191 | htab->got_reli_size += rel_size; | |
| 11192 | } | |
| 11193 | else if (info->shared) | |
| 11194 | { | |
| 11195 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11196 | srel->size += rel_size; | |
| d0fae19d AM |
11197 | } |
| 11198 | } | |
| 927be08e AM |
11199 | } |
| 11200 | } | |
| 11201 | ||
| 11202 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11203 | ||
| 11204 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11205 | { | |
| 11206 | struct got_entry *ent; | |
| 11207 | ||
| 11208 | if (!is_ppc64_elf (ibfd)) | |
| 11209 | continue; | |
| 11210 | ||
| 11211 | ent = ppc64_tlsld_got (ibfd); | |
| 11212 | if (!ent->is_indirect | |
| 11213 | && ent->got.offset != (bfd_vma) -1) | |
| 11214 | { | |
| 11215 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11216 | ent->got.offset = s->size; | |
| 11217 | s->size += 16; | |
| 11218 | if (info->shared) | |
| 11219 | { | |
| 11220 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11221 | srel->size += sizeof (Elf64_External_Rela); | |
| 11222 | } | |
| 11223 | } | |
| 11224 | } | |
| 11225 | ||
| 11226 | done_something = htab->reliplt->rawsize != htab->reliplt->size; | |
| 11227 | if (!done_something) | |
| 11228 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
| 11229 | { | |
| 11230 | asection *got; | |
| 11231 | ||
| 11232 | if (!is_ppc64_elf (ibfd)) | |
| 11233 | continue; | |
| 11234 | ||
| 11235 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11236 | if (got != NULL) | |
| 11237 | { | |
| 11238 | done_something = got->rawsize != got->size; | |
| 11239 | if (done_something) | |
| 11240 | break; | |
| 11241 | } | |
| 11242 | } | |
| 11243 | ||
| 11244 | if (done_something) | |
| 11245 | (*htab->layout_sections_again) (); | |
| 11246 | ||
| 11247 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11248 | on input sections. */ | |
| 11249 | htab->toc_bfd = NULL; | |
| 11250 | htab->toc_first_sec = NULL; | |
| 11251 | htab->second_toc_pass = TRUE; | |
| 11252 | return done_something; | |
| 11253 | } | |
| 11254 | ||
| 11255 | /* Called after second pass of multitoc partitioning. */ | |
| 11256 | ||
| 11257 | void | |
| 11258 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11259 | { | |
| 11260 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11261 | ||
| 11262 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11263 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11264 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11265 | } |
| 11266 | ||
| 9b5ecbd0 AM |
11267 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11268 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11269 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11270 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11271 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11272 | for a stub was detected. If called from the top level, a return of | |
| 11273 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11274 | |
| 11275 | static int | |
| 4ce794b7 | 11276 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11277 | { |
| 9b5ecbd0 | 11278 | int ret; |
| 70cc837d AM |
11279 | |
| 11280 | /* Mark this section as checked. */ | |
| 11281 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11282 | |
| 772119ce AM |
11283 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11284 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11285 | return 0; | |
| 11286 | ||
| eea6121a | 11287 | if (isec->size == 0) |
| 082c50f8 AM |
11288 | return 0; |
| 11289 | ||
| 4c52953f AM |
11290 | if (isec->output_section == NULL) |
| 11291 | return 0; | |
| 11292 | ||
| 4c52953f | 11293 | ret = 0; |
| 70cc837d | 11294 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11295 | { |
| 70cc837d AM |
11296 | Elf_Internal_Rela *relstart, *rel; |
| 11297 | Elf_Internal_Sym *local_syms; | |
| 11298 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11299 | |
| 70cc837d AM |
11300 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11301 | info->keep_memory); | |
| 11302 | if (relstart == NULL) | |
| 11303 | return -1; | |
| 90aecf7a | 11304 | |
| 70cc837d AM |
11305 | /* Look for branches to outside of this section. */ |
| 11306 | local_syms = NULL; | |
| 11307 | htab = ppc_hash_table (info); | |
| 11308 | if (htab == NULL) | |
| 11309 | return -1; | |
| 4c52953f | 11310 | |
| 70cc837d | 11311 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11312 | { |
| 70cc837d AM |
11313 | enum elf_ppc64_reloc_type r_type; |
| 11314 | unsigned long r_symndx; | |
| 11315 | struct elf_link_hash_entry *h; | |
| 11316 | struct ppc_link_hash_entry *eh; | |
| 11317 | Elf_Internal_Sym *sym; | |
| 11318 | asection *sym_sec; | |
| 11319 | struct _opd_sec_data *opd; | |
| 11320 | bfd_vma sym_value; | |
| 11321 | bfd_vma dest; | |
| 11322 | ||
| 11323 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11324 | if (r_type != R_PPC64_REL24 | |
| 11325 | && r_type != R_PPC64_REL14 | |
| 11326 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11327 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11328 | continue; | |
| 4c52953f | 11329 | |
| 70cc837d AM |
11330 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11331 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11332 | isec->owner)) | |
| 4c52953f | 11333 | { |
| 70cc837d AM |
11334 | ret = -1; |
| 11335 | break; | |
| 11336 | } | |
| 4c52953f | 11337 | |
| 70cc837d AM |
11338 | /* Calls to dynamic lib functions go through a plt call stub |
| 11339 | that uses r2. */ | |
| 11340 | eh = (struct ppc_link_hash_entry *) h; | |
| 11341 | if (eh != NULL | |
| 11342 | && (eh->elf.plt.plist != NULL | |
| 11343 | || (eh->oh != NULL | |
| 11344 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11345 | { | |
| 11346 | ret = 1; | |
| 11347 | break; | |
| 4c52953f AM |
11348 | } |
| 11349 | ||
| 70cc837d AM |
11350 | if (sym_sec == NULL) |
| 11351 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11352 | continue; |
| 4c52953f | 11353 | |
| 70cc837d AM |
11354 | /* Assume branches to other sections not included in the |
| 11355 | link need stubs too, to cover -R and absolute syms. */ | |
| 11356 | if (sym_sec->output_section == NULL) | |
| 11357 | { | |
| 11358 | ret = 1; | |
| 11359 | break; | |
| 11360 | } | |
| 4c52953f | 11361 | |
| 70cc837d AM |
11362 | if (h == NULL) |
| 11363 | sym_value = sym->st_value; | |
| 11364 | else | |
| 11365 | { | |
| 11366 | if (h->root.type != bfd_link_hash_defined | |
| 11367 | && h->root.type != bfd_link_hash_defweak) | |
| 11368 | abort (); | |
| 11369 | sym_value = h->root.u.def.value; | |
| 11370 | } | |
| 11371 | sym_value += rel->r_addend; | |
| 4c52953f | 11372 | |
| 70cc837d AM |
11373 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11374 | opd = get_opd_info (sym_sec); | |
| 11375 | if (opd != NULL) | |
| 11376 | { | |
| 11377 | if (h == NULL && opd->adjust != NULL) | |
| 11378 | { | |
| 11379 | long adjust; | |
| 4c52953f | 11380 | |
| 70cc837d AM |
11381 | adjust = opd->adjust[sym->st_value / 8]; |
| 11382 | if (adjust == -1) | |
| 11383 | /* Assume deleted functions won't ever be called. */ | |
| 11384 | continue; | |
| 11385 | sym_value += adjust; | |
| 11386 | } | |
| 4c52953f | 11387 | |
| aef36ac1 AM |
11388 | dest = opd_entry_value (sym_sec, sym_value, |
| 11389 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11390 | if (dest == (bfd_vma) -1) |
| 11391 | continue; | |
| 11392 | } | |
| 11393 | else | |
| 11394 | dest = (sym_value | |
| 11395 | + sym_sec->output_offset | |
| 11396 | + sym_sec->output_section->vma); | |
| 4c52953f | 11397 | |
| 70cc837d AM |
11398 | /* Ignore branch to self. */ |
| 11399 | if (sym_sec == isec) | |
| 11400 | continue; | |
| 4c52953f | 11401 | |
| 70cc837d AM |
11402 | /* If the called function uses the toc, we need a stub. */ |
| 11403 | if (sym_sec->has_toc_reloc | |
| 11404 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11405 | { |
| 70cc837d | 11406 | ret = 1; |
| 4c52953f AM |
11407 | break; |
| 11408 | } | |
| 70cc837d AM |
11409 | |
| 11410 | /* Assume any branch that needs a long branch stub might in fact | |
| 11411 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11412 | else if (dest - (isec->output_offset | |
| 11413 | + isec->output_section->vma | |
| 6911b7dc AM |
11414 | + rel->r_offset) + (1 << 25) |
| 11415 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11416 | ? h->other | |
| 11417 | : sym->st_other)) | |
| 4c52953f | 11418 | { |
| 70cc837d AM |
11419 | ret = 1; |
| 11420 | break; | |
| 11421 | } | |
| 11422 | ||
| 11423 | /* If calling back to a section in the process of being | |
| 11424 | tested, we can't say for sure that no toc adjusting stubs | |
| 11425 | are needed, so don't return zero. */ | |
| 11426 | else if (sym_sec->call_check_in_progress) | |
| 11427 | ret = 2; | |
| 11428 | ||
| 11429 | /* Branches to another section that itself doesn't have any TOC | |
| 11430 | references are OK. Recursively call ourselves to check. */ | |
| 11431 | else if (!sym_sec->call_check_done) | |
| 11432 | { | |
| 11433 | int recur; | |
| 11434 | ||
| 11435 | /* Mark current section as indeterminate, so that other | |
| 11436 | sections that call back to current won't be marked as | |
| 11437 | known. */ | |
| 11438 | isec->call_check_in_progress = 1; | |
| 11439 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11440 | isec->call_check_in_progress = 0; | |
| 11441 | ||
| 4c52953f AM |
11442 | if (recur != 0) |
| 11443 | { | |
| 70cc837d AM |
11444 | ret = recur; |
| 11445 | if (recur != 2) | |
| 11446 | break; | |
| 4c52953f AM |
11447 | } |
| 11448 | } | |
| 4c52953f | 11449 | } |
| 70cc837d AM |
11450 | |
| 11451 | if (local_syms != NULL | |
| 11452 | && (elf_symtab_hdr (isec->owner).contents | |
| 11453 | != (unsigned char *) local_syms)) | |
| 11454 | free (local_syms); | |
| 11455 | if (elf_section_data (isec)->relocs != relstart) | |
| 11456 | free (relstart); | |
| 9b5ecbd0 AM |
11457 | } |
| 11458 | ||
| 70cc837d AM |
11459 | if ((ret & 1) == 0 |
| 11460 | && isec->map_head.s != NULL | |
| 11461 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11462 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11463 | { | |
| 11464 | if (isec->map_head.s->has_toc_reloc | |
| 11465 | || isec->map_head.s->makes_toc_func_call) | |
| 11466 | ret = 1; | |
| 11467 | else if (!isec->map_head.s->call_check_done) | |
| 11468 | { | |
| 11469 | int recur; | |
| 11470 | isec->call_check_in_progress = 1; | |
| 11471 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11472 | isec->call_check_in_progress = 0; | |
| 11473 | if (recur != 0) | |
| 11474 | ret = recur; | |
| 11475 | } | |
| 11476 | } | |
| 11477 | ||
| 11478 | if (ret == 1) | |
| 11479 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11480 | |
| 9b5ecbd0 AM |
11481 | return ret; |
| 11482 | } | |
| 11483 | ||
| 721956f4 AM |
11484 | /* The linker repeatedly calls this function for each input section, |
| 11485 | in the order that input sections are linked into output sections. | |
| 11486 | Build lists of input sections to determine groupings between which | |
| 11487 | we may insert linker stubs. */ | |
| 11488 | ||
| 9b5ecbd0 | 11489 | bfd_boolean |
| 4ce794b7 | 11490 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11491 | { |
| 11492 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11493 | ||
| 4dfe6ac6 NC |
11494 | if (htab == NULL) |
| 11495 | return FALSE; | |
| 11496 | ||
| 734b6cf9 AM |
11497 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 11498 | && isec->output_section->index <= htab->top_index) | |
| 721956f4 | 11499 | { |
| 734b6cf9 | 11500 | asection **list = htab->input_list + isec->output_section->index; |
| 3d6f9012 | 11501 | /* Steal the link_sec pointer for our list. */ |
| 721956f4 | 11502 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
| 3d6f9012 AM |
11503 | /* This happens to make the list in reverse order, |
| 11504 | which is what we want. */ | |
| 734b6cf9 AM |
11505 | PREV_SEC (isec) = *list; |
| 11506 | *list = isec; | |
| 721956f4 | 11507 | } |
| ad8e1ba5 | 11508 | |
| 4c52953f | 11509 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11510 | { |
| 4c52953f AM |
11511 | /* If a code section has a function that uses the TOC then we need |
| 11512 | to use the right TOC (obviously). Also, make sure that .opd gets | |
| 11513 | the correct TOC value for R_PPC64_TOC relocs that don't have or | |
| f94498ff AM |
11514 | can't find their function symbol (shouldn't ever happen now). |
| 11515 | Also specially treat .fixup for the linux kernel. .fixup | |
| 11516 | contains branches, but only back to the function that hit an | |
| 11517 | exception. */ | |
| 11518 | if (isec->has_toc_reloc | |
| 11519 | || (isec->flags & SEC_CODE) == 0 | |
| 11520 | || strcmp (isec->name, ".fixup") == 0) | |
| 4c52953f AM |
11521 | { |
| 11522 | if (elf_gp (isec->owner) != 0) | |
| 11523 | htab->toc_curr = elf_gp (isec->owner); | |
| 11524 | } | |
| 6683a28d AM |
11525 | else |
| 11526 | { | |
| 11527 | if (!isec->call_check_done | |
| 11528 | && toc_adjusting_stub_needed (info, isec) < 0) | |
| 11529 | return FALSE; | |
| 11530 | /* If we make a local call from this section, ie. a branch | |
| 11531 | without a following nop, then we have no place to put a | |
| 11532 | toc restoring insn. We must use the same toc group as | |
| 11533 | the callee. | |
| 11534 | Testing makes_toc_func_call actually tests for *any* | |
| 11535 | calls to functions that need a good toc pointer. A more | |
| 11536 | precise test would be better, as this one will set | |
| 11537 | incorrect values for pasted .init/.fini fragments. | |
| 11538 | (Fixed later in check_pasted_section.) */ | |
| 11539 | if (isec->makes_toc_func_call | |
| 11540 | && elf_gp (isec->owner) != 0) | |
| 11541 | htab->toc_curr = elf_gp (isec->owner); | |
| 11542 | } | |
| 9b5ecbd0 | 11543 | } |
| ad8e1ba5 AM |
11544 | |
| 11545 | /* Functions that don't use the TOC can belong in any TOC group. | |
| 6683a28d | 11546 | Use the last TOC base. */ |
| ad8e1ba5 | 11547 | htab->stub_group[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11548 | return TRUE; |
| 721956f4 AM |
11549 | } |
| 11550 | ||
| 70cc837d AM |
11551 | /* Check that all .init and .fini sections use the same toc, if they |
| 11552 | have toc relocs. */ | |
| 11553 | ||
| 11554 | static bfd_boolean | |
| 11555 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11556 | { | |
| 11557 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11558 | ||
| 11559 | if (o != NULL) | |
| 11560 | { | |
| 11561 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11562 | bfd_vma toc_off = 0; | |
| 11563 | asection *i; | |
| 11564 | ||
| 11565 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11566 | if (i->has_toc_reloc) | |
| 11567 | { | |
| 11568 | if (toc_off == 0) | |
| 11569 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11570 | else if (toc_off != htab->stub_group[i->id].toc_off) | |
| 11571 | return FALSE; | |
| 11572 | } | |
| 6683a28d AM |
11573 | |
| 11574 | if (toc_off == 0) | |
| 11575 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11576 | if (i->makes_toc_func_call) | |
| 11577 | { | |
| 11578 | toc_off = htab->stub_group[i->id].toc_off; | |
| 11579 | break; | |
| 11580 | } | |
| 11581 | ||
| 70cc837d AM |
11582 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11583 | if (toc_off != 0) | |
| 11584 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11585 | htab->stub_group[i->id].toc_off = toc_off; | |
| 11586 | } | |
| 11587 | return TRUE; | |
| 11588 | } | |
| 11589 | ||
| 11590 | bfd_boolean | |
| 11591 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11592 | { | |
| 11593 | return (check_pasted_section (info, ".init") | |
| 11594 | & check_pasted_section (info, ".fini")); | |
| 11595 | } | |
| 11596 | ||
| 721956f4 AM |
11597 | /* See whether we can group stub sections together. Grouping stub |
| 11598 | sections may result in fewer stubs. More importantly, we need to | |
| 11599 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11600 | .fini output sections respectively, because glibc splits the | |
| 11601 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11602 | the middle of a function is not a good idea. */ | |
| 11603 | ||
| 11604 | static void | |
| 4ce794b7 AM |
11605 | group_sections (struct ppc_link_hash_table *htab, |
| 11606 | bfd_size_type stub_group_size, | |
| 11607 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11608 | { |
| 7c8fe5c4 AM |
11609 | asection **list; |
| 11610 | bfd_size_type stub14_group_size; | |
| 11611 | bfd_boolean suppress_size_errors; | |
| 11612 | ||
| 11613 | suppress_size_errors = FALSE; | |
| 11614 | stub14_group_size = stub_group_size; | |
| 11615 | if (stub_group_size == 1) | |
| 11616 | { | |
| 11617 | /* Default values. */ | |
| 11618 | if (stubs_always_before_branch) | |
| 11619 | { | |
| 11620 | stub_group_size = 0x1e00000; | |
| 11621 | stub14_group_size = 0x7800; | |
| 11622 | } | |
| 11623 | else | |
| 11624 | { | |
| 11625 | stub_group_size = 0x1c00000; | |
| 11626 | stub14_group_size = 0x7000; | |
| 11627 | } | |
| 11628 | suppress_size_errors = TRUE; | |
| 11629 | } | |
| 11630 | ||
| 11631 | list = htab->input_list + htab->top_index; | |
| 734b6cf9 | 11632 | do |
| 721956f4 | 11633 | { |
| 734b6cf9 AM |
11634 | asection *tail = *list; |
| 11635 | while (tail != NULL) | |
| 721956f4 | 11636 | { |
| 734b6cf9 AM |
11637 | asection *curr; |
| 11638 | asection *prev; | |
| 11639 | bfd_size_type total; | |
| 11640 | bfd_boolean big_sec; | |
| 11641 | bfd_vma curr_toc; | |
| 11642 | ||
| 11643 | curr = tail; | |
| eea6121a | 11644 | total = tail->size; |
| 6bee8834 AM |
11645 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 11646 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
11647 | ? stub14_group_size : stub_group_size); |
| 11648 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
11649 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 11650 | tail->owner, tail); | |
| 734b6cf9 AM |
11651 | curr_toc = htab->stub_group[tail->id].toc_off; |
| 11652 | ||
| 11653 | while ((prev = PREV_SEC (curr)) != NULL | |
| 11654 | && ((total += curr->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11655 | < (ppc64_elf_section_data (prev) != NULL |
| 11656 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11657 | ? stub14_group_size : stub_group_size)) |
| ad8e1ba5 | 11658 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
11659 | curr = prev; |
| 11660 | ||
| 11661 | /* OK, the size from the start of CURR to the end is less | |
| 11662 | than stub_group_size and thus can be handled by one stub | |
| 11663 | section. (or the tail section is itself larger than | |
| 11664 | stub_group_size, in which case we may be toast.) We | |
| 11665 | should really be keeping track of the total size of stubs | |
| 11666 | added here, as stubs contribute to the final output | |
| 11667 | section size. That's a little tricky, and this way will | |
| 11668 | only break if stubs added make the total size more than | |
| 11669 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 11670 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 11671 | do | |
| 721956f4 AM |
11672 | { |
| 11673 | prev = PREV_SEC (tail); | |
| 734b6cf9 | 11674 | /* Set up this stub group. */ |
| 721956f4 AM |
11675 | htab->stub_group[tail->id].link_sec = curr; |
| 11676 | } | |
| 734b6cf9 AM |
11677 | while (tail != curr && (tail = prev) != NULL); |
| 11678 | ||
| 11679 | /* But wait, there's more! Input sections up to stub_group_size | |
| 11680 | bytes before the stub section can be handled by it too. | |
| 11681 | Don't do this if we have a really large section after the | |
| 11682 | stubs, as adding more stubs increases the chance that | |
| 11683 | branches may not reach into the stub section. */ | |
| 11684 | if (!stubs_always_before_branch && !big_sec) | |
| 11685 | { | |
| 11686 | total = 0; | |
| 11687 | while (prev != NULL | |
| 11688 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
11689 | < (ppc64_elf_section_data (prev) != NULL |
| 11690 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 11691 | ? stub14_group_size : stub_group_size)) |
| 734b6cf9 AM |
11692 | && htab->stub_group[prev->id].toc_off == curr_toc) |
| 11693 | { | |
| 11694 | tail = prev; | |
| 11695 | prev = PREV_SEC (tail); | |
| 11696 | htab->stub_group[tail->id].link_sec = curr; | |
| 11697 | } | |
| 11698 | } | |
| 11699 | tail = prev; | |
| 721956f4 AM |
11700 | } |
| 11701 | } | |
| 734b6cf9 AM |
11702 | while (list-- != htab->input_list); |
| 11703 | free (htab->input_list); | |
| 721956f4 AM |
11704 | #undef PREV_SEC |
| 11705 | } | |
| 11706 | ||
| 58d180e8 AM |
11707 | static const unsigned char glink_eh_frame_cie[] = |
| 11708 | { | |
| 11709 | 0, 0, 0, 16, /* length. */ | |
| 11710 | 0, 0, 0, 0, /* id. */ | |
| 11711 | 1, /* CIE version. */ | |
| 11712 | 'z', 'R', 0, /* Augmentation string. */ | |
| 11713 | 4, /* Code alignment. */ | |
| 11714 | 0x78, /* Data alignment. */ | |
| 11715 | 65, /* RA reg. */ | |
| 11716 | 1, /* Augmentation size. */ | |
| 11717 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 11718 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ | |
| 11719 | }; | |
| 11720 | ||
| d969d15f AM |
11721 | /* Stripping output sections is normally done before dynamic section |
| 11722 | symbols have been allocated. This function is called later, and | |
| 11723 | handles cases like htab->brlt which is mapped to its own output | |
| 11724 | section. */ | |
| 11725 | ||
| 11726 | static void | |
| 11727 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 11728 | { | |
| 11729 | if (isec->size == 0 | |
| 11730 | && isec->output_section->size == 0 | |
| 53d8967a | 11731 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
11732 | && !bfd_section_removed_from_list (info->output_bfd, |
| 11733 | isec->output_section) | |
| 11734 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 11735 | { | |
| 11736 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 11737 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 11738 | info->output_bfd->section_count--; | |
| 11739 | } | |
| 11740 | } | |
| 11741 | ||
| 721956f4 AM |
11742 | /* Determine and set the size of the stub section for a final link. |
| 11743 | ||
| 11744 | The basic idea here is to examine all the relocations looking for | |
| 11745 | PC-relative calls to a target that is unreachable with a "bl" | |
| 11746 | instruction. */ | |
| 11747 | ||
| b34976b6 | 11748 | bfd_boolean |
| 9df0ef5f | 11749 | ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size, |
| 794e51c0 AM |
11750 | bfd_boolean plt_static_chain, int plt_thread_safe, |
| 11751 | int plt_stub_align) | |
| 721956f4 AM |
11752 | { |
| 11753 | bfd_size_type stub_group_size; | |
| b34976b6 | 11754 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
11755 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 11756 | ||
| 4dfe6ac6 NC |
11757 | if (htab == NULL) |
| 11758 | return FALSE; | |
| 11759 | ||
| 9df0ef5f | 11760 | htab->plt_static_chain = plt_static_chain; |
| 794e51c0 | 11761 | htab->plt_stub_align = plt_stub_align; |
| e2458743 AM |
11762 | if (plt_thread_safe == -1 && !info->executable) |
| 11763 | plt_thread_safe = 1; | |
| b9e5796b AM |
11764 | if (!htab->opd_abi) |
| 11765 | plt_thread_safe = 0; | |
| 11766 | else if (plt_thread_safe == -1) | |
| 794e51c0 | 11767 | { |
| e2458743 | 11768 | static const char *const thread_starter[] = |
| 794e51c0 AM |
11769 | { |
| 11770 | "pthread_create", | |
| 11771 | /* libstdc++ */ | |
| 11772 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 11773 | /* librt */ | |
| 11774 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 11775 | "mq_notify", "create_timer", | |
| 11776 | /* libanl */ | |
| 11777 | "getaddrinfo_a", | |
| 11778 | /* libgomp */ | |
| 11779 | "GOMP_parallel_start", | |
| 11780 | "GOMP_parallel_loop_static_start", | |
| 11781 | "GOMP_parallel_loop_dynamic_start", | |
| 11782 | "GOMP_parallel_loop_guided_start", | |
| 11783 | "GOMP_parallel_loop_runtime_start", | |
| 68ffbac6 | 11784 | "GOMP_parallel_sections_start", |
| 794e51c0 AM |
11785 | }; |
| 11786 | unsigned i; | |
| 11787 | ||
| 11788 | for (i = 0; i < sizeof (thread_starter)/ sizeof (thread_starter[0]); i++) | |
| 11789 | { | |
| 11790 | struct elf_link_hash_entry *h; | |
| 11791 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 11792 | FALSE, FALSE, TRUE); | |
| 11793 | plt_thread_safe = h != NULL && h->ref_regular; | |
| 11794 | if (plt_thread_safe) | |
| 11795 | break; | |
| 11796 | } | |
| 11797 | } | |
| 11798 | htab->plt_thread_safe = plt_thread_safe; | |
| 721956f4 AM |
11799 | stubs_always_before_branch = group_size < 0; |
| 11800 | if (group_size < 0) | |
| 11801 | stub_group_size = -group_size; | |
| 11802 | else | |
| 11803 | stub_group_size = group_size; | |
| 721956f4 AM |
11804 | |
| 11805 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
| 11806 | ||
| 721956f4 AM |
11807 | while (1) |
| 11808 | { | |
| 11809 | bfd *input_bfd; | |
| 11810 | unsigned int bfd_indx; | |
| 11811 | asection *stub_sec; | |
| 721956f4 AM |
11812 | |
| 11813 | htab->stub_iteration += 1; | |
| 721956f4 AM |
11814 | |
| 11815 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 11816 | input_bfd != NULL; | |
| 11817 | input_bfd = input_bfd->link_next, bfd_indx++) | |
| 11818 | { | |
| 11819 | Elf_Internal_Shdr *symtab_hdr; | |
| 11820 | asection *section; | |
| 6cdc0ccc | 11821 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 11822 | |
| 0c8d6e5c | 11823 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
11824 | continue; |
| 11825 | ||
| 721956f4 | 11826 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 11827 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
11828 | if (symtab_hdr->sh_info == 0) |
| 11829 | continue; | |
| 11830 | ||
| 721956f4 AM |
11831 | /* Walk over each section attached to the input bfd. */ |
| 11832 | for (section = input_bfd->sections; | |
| 11833 | section != NULL; | |
| 11834 | section = section->next) | |
| 11835 | { | |
| 721956f4 | 11836 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
11837 | |
| 11838 | /* If there aren't any relocs, then there's nothing more | |
| 11839 | to do. */ | |
| 11840 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
11841 | || (section->flags & SEC_ALLOC) == 0 |
| 11842 | || (section->flags & SEC_LOAD) == 0 | |
| 11843 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
11844 | || section->reloc_count == 0) |
| 11845 | continue; | |
| 11846 | ||
| 11847 | /* If this section is a link-once section that will be | |
| 11848 | discarded, then don't create any stubs. */ | |
| 11849 | if (section->output_section == NULL | |
| 927be08e | 11850 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
11851 | continue; |
| 11852 | ||
| 1e2f5b6e AM |
11853 | /* Get the relocs. */ |
| 11854 | internal_relocs | |
| 4ce794b7 | 11855 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 11856 | info->keep_memory); |
| 721956f4 | 11857 | if (internal_relocs == NULL) |
| 1e2f5b6e | 11858 | goto error_ret_free_local; |
| 721956f4 AM |
11859 | |
| 11860 | /* Now examine each relocation. */ | |
| 11861 | irela = internal_relocs; | |
| 11862 | irelaend = irela + section->reloc_count; | |
| 11863 | for (; irela < irelaend; irela++) | |
| 11864 | { | |
| 4ce794b7 AM |
11865 | enum elf_ppc64_reloc_type r_type; |
| 11866 | unsigned int r_indx; | |
| 721956f4 AM |
11867 | enum ppc_stub_type stub_type; |
| 11868 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 11869 | asection *sym_sec, *code_sec; |
| e054468f | 11870 | bfd_vma sym_value, code_value; |
| 721956f4 | 11871 | bfd_vma destination; |
| 6911b7dc | 11872 | unsigned long local_off; |
| 8843416a | 11873 | bfd_boolean ok_dest; |
| 721956f4 | 11874 | struct ppc_link_hash_entry *hash; |
| 8387904d | 11875 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
11876 | struct elf_link_hash_entry *h; |
| 11877 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
11878 | char *stub_name; |
| 11879 | const asection *id_sec; | |
| 74f0fb50 | 11880 | struct _opd_sec_data *opd; |
| e054468f | 11881 | struct plt_entry *plt_ent; |
| 721956f4 AM |
11882 | |
| 11883 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 11884 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 11885 | ||
| 4ce794b7 | 11886 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
11887 | { |
| 11888 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 11889 | goto error_ret_free_internal; |
| 721956f4 AM |
11890 | } |
| 11891 | ||
| 11892 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
11893 | if (r_type != R_PPC64_REL24 |
| 11894 | && r_type != R_PPC64_REL14 | |
| 11895 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11896 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
11897 | continue; |
| 11898 | ||
| 11899 | /* Now determine the call target, its name, value, | |
| 11900 | section. */ | |
| 411e1bfb AM |
11901 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 11902 | r_indx, input_bfd)) | |
| 11903 | goto error_ret_free_internal; | |
| 11904 | hash = (struct ppc_link_hash_entry *) h; | |
| 11905 | ||
| 8843416a | 11906 | ok_dest = FALSE; |
| 8387904d | 11907 | fdh = NULL; |
| 7fe2b9a6 | 11908 | sym_value = 0; |
| 411e1bfb | 11909 | if (hash == NULL) |
| 721956f4 | 11910 | { |
| 411e1bfb | 11911 | sym_value = sym->st_value; |
| 8843416a | 11912 | ok_dest = TRUE; |
| 721956f4 | 11913 | } |
| 7fe2b9a6 AM |
11914 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 11915 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 11916 | { | |
| 11917 | sym_value = hash->elf.root.u.def.value; | |
| 11918 | if (sym_sec->output_section != NULL) | |
| 11919 | ok_dest = TRUE; | |
| 11920 | } | |
| 11921 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 11922 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 11923 | { |
| 99877b66 | 11924 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
11925 | use the func descriptor sym instead if it is |
| 11926 | defined. */ | |
| ceb1f1ef | 11927 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 11928 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 11929 | { |
| 8387904d AM |
11930 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 11931 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 11932 | { | |
| 11933 | sym_sec = fdh->elf.root.u.def.section; | |
| 11934 | sym_value = fdh->elf.root.u.def.value; | |
| 11935 | if (sym_sec->output_section != NULL) | |
| 11936 | ok_dest = TRUE; | |
| 11937 | } | |
| 99877b66 AM |
11938 | else |
| 11939 | fdh = NULL; | |
| 8387904d | 11940 | } |
| 7fe2b9a6 AM |
11941 | } |
| 11942 | else | |
| 11943 | { | |
| 11944 | bfd_set_error (bfd_error_bad_value); | |
| 11945 | goto error_ret_free_internal; | |
| 721956f4 AM |
11946 | } |
| 11947 | ||
| 8843416a | 11948 | destination = 0; |
| 6911b7dc | 11949 | local_off = 0; |
| 8843416a AM |
11950 | if (ok_dest) |
| 11951 | { | |
| 11952 | sym_value += irela->r_addend; | |
| 11953 | destination = (sym_value | |
| 11954 | + sym_sec->output_offset | |
| 11955 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
11956 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 11957 | ? hash->elf.other | |
| 11958 | : sym->st_other); | |
| 8843416a AM |
11959 | } |
| 11960 | ||
| 8387904d | 11961 | code_sec = sym_sec; |
| e054468f | 11962 | code_value = sym_value; |
| 74f0fb50 AM |
11963 | opd = get_opd_info (sym_sec); |
| 11964 | if (opd != NULL) | |
| 8387904d AM |
11965 | { |
| 11966 | bfd_vma dest; | |
| 11967 | ||
| 74f0fb50 | 11968 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 11969 | { |
| 74f0fb50 | 11970 | long adjust = opd->adjust[sym_value / 8]; |
| 8387904d AM |
11971 | if (adjust == -1) |
| 11972 | continue; | |
| e054468f | 11973 | code_value += adjust; |
| 8387904d AM |
11974 | sym_value += adjust; |
| 11975 | } | |
| 11976 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 11977 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
11978 | if (dest != (bfd_vma) -1) |
| 11979 | { | |
| 11980 | destination = dest; | |
| 11981 | if (fdh != NULL) | |
| 11982 | { | |
| 11983 | /* Fixup old ABI sym to point at code | |
| 11984 | entry. */ | |
| 99877b66 | 11985 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 11986 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 11987 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
11988 | } |
| 11989 | } | |
| 11990 | } | |
| 11991 | ||
| 721956f4 | 11992 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 11993 | plt_ent = NULL; |
| 721956f4 | 11994 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
11995 | &plt_ent, destination, |
| 11996 | local_off); | |
| ad8e1ba5 AM |
11997 | |
| 11998 | if (stub_type != ppc_stub_plt_call) | |
| 11999 | { | |
| 12000 | /* Check whether we need a TOC adjusting stub. | |
| 12001 | Since the linker pastes together pieces from | |
| 12002 | different object files when creating the | |
| 12003 | _init and _fini functions, it may be that a | |
| 12004 | call to what looks like a local sym is in | |
| 12005 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12006 | if (code_sec != NULL |
| 12007 | && code_sec->output_section != NULL | |
| 12008 | && (htab->stub_group[code_sec->id].toc_off | |
| 9b5ecbd0 | 12009 | != htab->stub_group[section->id].toc_off) |
| 4c52953f AM |
12010 | && (code_sec->has_toc_reloc |
| 12011 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12012 | stub_type = ppc_stub_long_branch_r2off; |
| 12013 | } | |
| 12014 | ||
| 721956f4 AM |
12015 | if (stub_type == ppc_stub_none) |
| 12016 | continue; | |
| 12017 | ||
| 411e1bfb AM |
12018 | /* __tls_get_addr calls might be eliminated. */ |
| 12019 | if (stub_type != ppc_stub_plt_call | |
| 12020 | && hash != NULL | |
| 8387904d AM |
12021 | && (hash == htab->tls_get_addr |
| 12022 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12023 | && section->has_tls_reloc |
| 12024 | && irela != internal_relocs) | |
| 12025 | { | |
| 12026 | /* Get tls info. */ | |
| f961d9dd | 12027 | unsigned char *tls_mask; |
| 411e1bfb | 12028 | |
| 3a71aa26 | 12029 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12030 | irela - 1, input_bfd)) |
| 12031 | goto error_ret_free_internal; | |
| e7b938ca | 12032 | if (*tls_mask != 0) |
| 411e1bfb AM |
12033 | continue; |
| 12034 | } | |
| 12035 | ||
| 3b421ab3 AM |
12036 | if (stub_type == ppc_stub_plt_call |
| 12037 | && irela + 1 < irelaend | |
| 12038 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12039 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12040 | { | |
| 12041 | if (!tocsave_find (htab, INSERT, | |
| 12042 | &local_syms, irela + 1, input_bfd)) | |
| 12043 | goto error_ret_free_internal; | |
| 12044 | } | |
| 12045 | else if (stub_type == ppc_stub_plt_call) | |
| 12046 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12047 | |
| 721956f4 AM |
12048 | /* Support for grouping stub sections. */ |
| 12049 | id_sec = htab->stub_group[section->id].link_sec; | |
| 12050 | ||
| 12051 | /* Get the name of this stub. */ | |
| 12052 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12053 | if (!stub_name) | |
| 12054 | goto error_ret_free_internal; | |
| 12055 | ||
| 12056 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12057 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12058 | if (stub_entry != NULL) |
| 12059 | { | |
| 12060 | /* The proper stub has already been created. */ | |
| 12061 | free (stub_name); | |
| 794e51c0 AM |
12062 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12063 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12064 | continue; |
| 12065 | } | |
| 12066 | ||
| 25f53a85 | 12067 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12068 | if (stub_entry == NULL) |
| 12069 | { | |
| 12070 | free (stub_name); | |
| 6cdc0ccc AM |
12071 | error_ret_free_internal: |
| 12072 | if (elf_section_data (section)->relocs == NULL) | |
| 12073 | free (internal_relocs); | |
| 12074 | error_ret_free_local: | |
| 12075 | if (local_syms != NULL | |
| 12076 | && (symtab_hdr->contents | |
| 12077 | != (unsigned char *) local_syms)) | |
| 12078 | free (local_syms); | |
| b34976b6 | 12079 | return FALSE; |
| 721956f4 AM |
12080 | } |
| 12081 | ||
| ad8e1ba5 | 12082 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12083 | if (stub_type != ppc_stub_plt_call |
| 12084 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12085 | { |
| 12086 | stub_entry->target_value = code_value; | |
| 12087 | stub_entry->target_section = code_sec; | |
| 12088 | } | |
| 12089 | else | |
| 12090 | { | |
| 12091 | stub_entry->target_value = sym_value; | |
| 12092 | stub_entry->target_section = sym_sec; | |
| 12093 | } | |
| 721956f4 | 12094 | stub_entry->h = hash; |
| e054468f | 12095 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12096 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12097 | |
| 12098 | if (stub_entry->h != NULL) | |
| 12099 | htab->stub_globals += 1; | |
| 721956f4 AM |
12100 | } |
| 12101 | ||
| 12102 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12103 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12104 | free (internal_relocs); |
| 721956f4 | 12105 | } |
| 6cdc0ccc AM |
12106 | |
| 12107 | if (local_syms != NULL | |
| 12108 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12109 | { | |
| 12110 | if (!info->keep_memory) | |
| 12111 | free (local_syms); | |
| 12112 | else | |
| 12113 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12114 | } | |
| 721956f4 AM |
12115 | } |
| 12116 | ||
| 5c3dead3 | 12117 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 AM |
12118 | stub sections. */ |
| 12119 | for (stub_sec = htab->stub_bfd->sections; | |
| 12120 | stub_sec != NULL; | |
| 12121 | stub_sec = stub_sec->next) | |
| e717da7e | 12122 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12123 | { |
| 5c3dead3 | 12124 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12125 | stub_sec->size = 0; |
| 12126 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12127 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12128 | } |
| eea6121a AM |
12129 | |
| 12130 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12131 | htab->brlt->reloc_count = 0; |
| 12132 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12133 | if (htab->relbrlt != NULL) |
| eea6121a | 12134 | htab->relbrlt->size = 0; |
| 721956f4 | 12135 | |
| 63bc6f6c | 12136 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12137 | |
| 176a0d42 AM |
12138 | if (info->emitrelocations |
| 12139 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12140 | { | |
| 12141 | htab->glink->reloc_count = 1; | |
| 12142 | htab->glink->flags |= SEC_RELOC; | |
| 12143 | } | |
| 12144 | ||
| 58d180e8 AM |
12145 | if (htab->glink_eh_frame != NULL |
| 12146 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12147 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12148 | { |
| 4bbe044a | 12149 | size_t size = 0, align; |
| 58d180e8 AM |
12150 | |
| 12151 | for (stub_sec = htab->stub_bfd->sections; | |
| 12152 | stub_sec != NULL; | |
| 12153 | stub_sec = stub_sec->next) | |
| 12154 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12155 | size += 20; | |
| 12156 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12157 | size += 24; | |
| 12158 | if (size != 0) | |
| 12159 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12160 | align = 1; |
| 12161 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12162 | align -= 1; | |
| 12163 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12164 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12165 | htab->glink_eh_frame->size = size; | |
| 12166 | } | |
| 12167 | ||
| 794e51c0 AM |
12168 | if (htab->plt_stub_align != 0) |
| 12169 | for (stub_sec = htab->stub_bfd->sections; | |
| 12170 | stub_sec != NULL; | |
| 12171 | stub_sec = stub_sec->next) | |
| 12172 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12173 | stub_sec->size = ((stub_sec->size + (1 << htab->plt_stub_align) - 1) | |
| 12174 | & (-1 << htab->plt_stub_align)); | |
| 12175 | ||
| 5c3dead3 AM |
12176 | for (stub_sec = htab->stub_bfd->sections; |
| 12177 | stub_sec != NULL; | |
| 12178 | stub_sec = stub_sec->next) | |
| 12179 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| 12180 | && stub_sec->rawsize != stub_sec->size) | |
| 12181 | break; | |
| 12182 | ||
| 12183 | /* Exit from this loop when no stubs have been added, and no stubs | |
| 12184 | have changed size. */ | |
| 58d180e8 AM |
12185 | if (stub_sec == NULL |
| 12186 | && (htab->glink_eh_frame == NULL | |
| 12187 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12188 | break; |
| 12189 | ||
| 721956f4 AM |
12190 | /* Ask the linker to do its stuff. */ |
| 12191 | (*htab->layout_sections_again) (); | |
| 12192 | } | |
| 12193 | ||
| d969d15f AM |
12194 | maybe_strip_output (info, htab->brlt); |
| 12195 | if (htab->glink_eh_frame != NULL) | |
| 12196 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12197 | |
| b34976b6 | 12198 | return TRUE; |
| 721956f4 AM |
12199 | } |
| 12200 | ||
| 12201 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12202 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12203 | |
| 805fc799 | 12204 | bfd_vma |
| 1c865ab2 | 12205 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12206 | { |
| 805fc799 AM |
12207 | asection *s; |
| 12208 | bfd_vma TOCstart; | |
| 721956f4 | 12209 | |
| 805fc799 AM |
12210 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12211 | order. The TOC starts where the first of these sections starts. */ | |
| 12212 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12213 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12214 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12215 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12216 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12217 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12218 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12219 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12220 | { |
| 12221 | /* This may happen for | |
| 12222 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12223 | .toc directive | |
| 12224 | o bad linker script | |
| 12225 | o --gc-sections and empty TOC sections | |
| 12226 | ||
| 12227 | FIXME: Warn user? */ | |
| 12228 | ||
| 12229 | /* Look for a likely section. We probably won't even be | |
| 12230 | using TOCstart. */ | |
| 12231 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12232 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12233 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12234 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12235 | break; | |
| 721956f4 | 12236 | if (s == NULL) |
| 805fc799 | 12237 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12238 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12239 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12240 | break; | |
| 721956f4 | 12241 | if (s == NULL) |
| 805fc799 | 12242 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12243 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12244 | == SEC_ALLOC) | |
| 805fc799 | 12245 | break; |
| 721956f4 | 12246 | if (s == NULL) |
| 805fc799 | 12247 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12248 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12249 | break; |
| 12250 | } | |
| 721956f4 | 12251 | |
| 805fc799 AM |
12252 | TOCstart = 0; |
| 12253 | if (s != NULL) | |
| 12254 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12255 | |
| 1c865ab2 AM |
12256 | _bfd_set_gp_value (obfd, TOCstart); |
| 12257 | ||
| 12258 | if (info != NULL && s != NULL && is_ppc64_elf (obfd)) | |
| 12259 | { | |
| 12260 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12261 | ||
| 12262 | if (htab != NULL | |
| 12263 | && htab->elf.hgot != NULL) | |
| 12264 | { | |
| 5295321c | 12265 | htab->elf.hgot->type = STT_OBJECT; |
| 1c865ab2 AM |
12266 | htab->elf.hgot->root.type = bfd_link_hash_defined; |
| 12267 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF; | |
| 12268 | htab->elf.hgot->root.u.def.section = s; | |
| 12269 | } | |
| 12270 | } | |
| 805fc799 | 12271 | return TOCstart; |
| 721956f4 AM |
12272 | } |
| 12273 | ||
| 12274 | /* Build all the stubs associated with the current output file. | |
| 12275 | The stubs are kept in a hash table attached to the main linker | |
| 12276 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12277 | ||
| b34976b6 | 12278 | bfd_boolean |
| 4ce794b7 AM |
12279 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
| 12280 | struct bfd_link_info *info, | |
| 12281 | char **stats) | |
| 5d1634d7 AM |
12282 | { |
| 12283 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 721956f4 | 12284 | asection *stub_sec; |
| 5d1634d7 | 12285 | bfd_byte *p; |
| e717da7e | 12286 | int stub_sec_count = 0; |
| 5d1634d7 | 12287 | |
| 4dfe6ac6 NC |
12288 | if (htab == NULL) |
| 12289 | return FALSE; | |
| 12290 | ||
| ad8e1ba5 | 12291 | htab->emit_stub_syms = emit_stub_syms; |
| eea6121a AM |
12292 | |
| 12293 | /* Allocate memory to hold the linker stubs. */ | |
| 721956f4 AM |
12294 | for (stub_sec = htab->stub_bfd->sections; |
| 12295 | stub_sec != NULL; | |
| 12296 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12297 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12298 | && stub_sec->size != 0) | |
| e717da7e | 12299 | { |
| eea6121a AM |
12300 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size); |
| 12301 | if (stub_sec->contents == NULL) | |
| 12302 | return FALSE; | |
| 12303 | /* We want to check that built size is the same as calculated | |
| 12304 | size. rawsize is a convenient location to use. */ | |
| 12305 | stub_sec->rawsize = stub_sec->size; | |
| 12306 | stub_sec->size = 0; | |
| e717da7e | 12307 | } |
| 5d1634d7 | 12308 | |
| 23eb7e01 | 12309 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12310 | { |
| 9f951329 | 12311 | unsigned int indx; |
| ad8e1ba5 | 12312 | bfd_vma plt0; |
| 9f951329 | 12313 | |
| 721956f4 | 12314 | /* Build the .glink plt call stub. */ |
| 97b639ba AM |
12315 | if (htab->emit_stub_syms) |
| 12316 | { | |
| 12317 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12318 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12319 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12320 | if (h == NULL) |
| 12321 | return FALSE; | |
| 12322 | if (h->root.type == bfd_link_hash_new) | |
| 12323 | { | |
| 12324 | h->root.type = bfd_link_hash_defined; | |
| 12325 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12326 | h->root.u.def.value = 8; |
| f5385ebf AM |
12327 | h->ref_regular = 1; |
| 12328 | h->def_regular = 1; | |
| 12329 | h->ref_regular_nonweak = 1; | |
| 12330 | h->forced_local = 1; | |
| 12331 | h->non_elf = 0; | |
| 97b639ba AM |
12332 | } |
| 12333 | } | |
| 176a0d42 AM |
12334 | plt0 = htab->plt->output_section->vma + htab->plt->output_offset - 16; |
| 12335 | if (info->emitrelocations) | |
| 12336 | { | |
| 12337 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12338 | if (r == NULL) | |
| 12339 | return FALSE; | |
| 12340 | r->r_offset = (htab->glink->output_offset | |
| 12341 | + htab->glink->output_section->vma); | |
| 12342 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12343 | r->r_addend = plt0; | |
| 12344 | } | |
| 4ce794b7 | 12345 | p = htab->glink->contents; |
| 176a0d42 | 12346 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12347 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12348 | p += 8; | |
| b9e5796b AM |
12349 | if (htab->opd_abi) |
| 12350 | { | |
| 12351 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 12352 | p += 4; | |
| 12353 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12354 | p += 4; | |
| 12355 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12356 | p += 4; | |
| 12357 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12358 | p += 4; | |
| 12359 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 12360 | p += 4; | |
| 12361 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12362 | p += 4; | |
| 12363 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12364 | p += 4; | |
| 12365 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 12366 | p += 4; | |
| 12367 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12368 | p += 4; | |
| 12369 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 12370 | p += 4; | |
| 12371 | } | |
| 12372 | else | |
| 12373 | { | |
| 12374 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 12375 | p += 4; | |
| 12376 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12377 | p += 4; | |
| 12378 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12379 | p += 4; | |
| 12380 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12381 | p += 4; | |
| 12382 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 12383 | p += 4; | |
| 12384 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 12385 | p += 4; | |
| 12386 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12387 | p += 4; | |
| 12388 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 12389 | p += 4; | |
| 12390 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12391 | p += 4; | |
| 12392 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 12393 | p += 4; | |
| 12394 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12395 | p += 4; | |
| 12396 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 12397 | p += 4; | |
| 12398 | } | |
| 4ce794b7 | 12399 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 12400 | p += 4; |
| ee4bf8d2 AM |
12401 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 12402 | { | |
| 12403 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 12404 | p += 4; | |
| 12405 | } | |
| ad8e1ba5 | 12406 | |
| 9f951329 AM |
12407 | /* Build the .glink lazy link call stubs. */ |
| 12408 | indx = 0; | |
| eea6121a | 12409 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 | 12410 | { |
| b9e5796b | 12411 | if (htab->opd_abi) |
| 9f951329 | 12412 | { |
| b9e5796b AM |
12413 | if (indx < 0x8000) |
| 12414 | { | |
| 12415 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 12416 | p += 4; | |
| 12417 | } | |
| 12418 | else | |
| 12419 | { | |
| 12420 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 12421 | p += 4; | |
| 12422 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 12423 | p); | |
| 12424 | p += 4; | |
| 12425 | } | |
| 9f951329 | 12426 | } |
| 4ce794b7 | 12427 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 12428 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 12429 | indx++; |
| 9f951329 AM |
12430 | p += 4; |
| 12431 | } | |
| eea6121a | 12432 | htab->glink->rawsize = p - htab->glink->contents; |
| 5d1634d7 | 12433 | } |
| 5d1634d7 | 12434 | |
| eea6121a | 12435 | if (htab->brlt->size != 0) |
| 721956f4 | 12436 | { |
| 4ce794b7 | 12437 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 12438 | htab->brlt->size); |
| 4ce794b7 | 12439 | if (htab->brlt->contents == NULL) |
| b34976b6 | 12440 | return FALSE; |
| 721956f4 | 12441 | } |
| ee75fd95 | 12442 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
12443 | { |
| 12444 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 12445 | htab->relbrlt->size); |
| 63bc6f6c AM |
12446 | if (htab->relbrlt->contents == NULL) |
| 12447 | return FALSE; | |
| 12448 | } | |
| 5d1634d7 | 12449 | |
| 58d180e8 AM |
12450 | if (htab->glink_eh_frame != NULL |
| 12451 | && htab->glink_eh_frame->size != 0) | |
| 12452 | { | |
| 12453 | bfd_vma val; | |
| 4bbe044a AM |
12454 | bfd_byte *last_fde; |
| 12455 | size_t last_fde_len, size, align, pad; | |
| 58d180e8 AM |
12456 | |
| 12457 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12458 | if (p == NULL) | |
| 12459 | return FALSE; | |
| 12460 | htab->glink_eh_frame->contents = p; | |
| 4bbe044a | 12461 | last_fde = p; |
| 58d180e8 AM |
12462 | |
| 12463 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; | |
| 12464 | ||
| 12465 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12466 | /* CIE length (rewrite in case little-endian). */ | |
| 4bbe044a AM |
12467 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; |
| 12468 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 58d180e8 AM |
12469 | p += sizeof (glink_eh_frame_cie); |
| 12470 | ||
| 12471 | for (stub_sec = htab->stub_bfd->sections; | |
| 12472 | stub_sec != NULL; | |
| 12473 | stub_sec = stub_sec->next) | |
| 12474 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12475 | { | |
| 4bbe044a AM |
12476 | last_fde = p; |
| 12477 | last_fde_len = 16; | |
| 58d180e8 AM |
12478 | /* FDE length. */ |
| 12479 | bfd_put_32 (htab->elf.dynobj, 16, p); | |
| 12480 | p += 4; | |
| 12481 | /* CIE pointer. */ | |
| 12482 | val = p - htab->glink_eh_frame->contents; | |
| 12483 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12484 | p += 4; | |
| 12485 | /* Offset to stub section. */ | |
| 12486 | val = (stub_sec->output_section->vma | |
| 12487 | + stub_sec->output_offset); | |
| 12488 | val -= (htab->glink_eh_frame->output_section->vma | |
| 12489 | + htab->glink_eh_frame->output_offset); | |
| 12490 | val -= p - htab->glink_eh_frame->contents; | |
| 12491 | if (val + 0x80000000 > 0xffffffff) | |
| 12492 | { | |
| 12493 | info->callbacks->einfo | |
| 8de848d8 | 12494 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), |
| 58d180e8 AM |
12495 | stub_sec->name); |
| 12496 | return FALSE; | |
| 12497 | } | |
| 12498 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12499 | p += 4; | |
| 12500 | /* stub section size. */ | |
| 12501 | bfd_put_32 (htab->elf.dynobj, stub_sec->rawsize, p); | |
| 12502 | p += 4; | |
| 12503 | /* Augmentation. */ | |
| 12504 | p += 1; | |
| 12505 | /* Pad. */ | |
| 12506 | p += 3; | |
| 12507 | } | |
| 12508 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12509 | { | |
| 4bbe044a AM |
12510 | last_fde = p; |
| 12511 | last_fde_len = 20; | |
| 58d180e8 AM |
12512 | /* FDE length. */ |
| 12513 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12514 | p += 4; | |
| 12515 | /* CIE pointer. */ | |
| 12516 | val = p - htab->glink_eh_frame->contents; | |
| 12517 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12518 | p += 4; | |
| 12519 | /* Offset to .glink. */ | |
| 12520 | val = (htab->glink->output_section->vma | |
| 12521 | + htab->glink->output_offset | |
| 12522 | + 8); | |
| 12523 | val -= (htab->glink_eh_frame->output_section->vma | |
| 12524 | + htab->glink_eh_frame->output_offset); | |
| 12525 | val -= p - htab->glink_eh_frame->contents; | |
| 12526 | if (val + 0x80000000 > 0xffffffff) | |
| 12527 | { | |
| 12528 | info->callbacks->einfo | |
| 8de848d8 | 12529 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), |
| 58d180e8 AM |
12530 | htab->glink->name); |
| 12531 | return FALSE; | |
| 12532 | } | |
| 12533 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12534 | p += 4; | |
| 12535 | /* .glink size. */ | |
| 12536 | bfd_put_32 (htab->elf.dynobj, htab->glink->rawsize - 8, p); | |
| 12537 | p += 4; | |
| 12538 | /* Augmentation. */ | |
| 12539 | p += 1; | |
| 12540 | ||
| 12541 | *p++ = DW_CFA_advance_loc + 1; | |
| 12542 | *p++ = DW_CFA_register; | |
| 12543 | *p++ = 65; | |
| 12544 | *p++ = 12; | |
| 12545 | *p++ = DW_CFA_advance_loc + 4; | |
| 12546 | *p++ = DW_CFA_restore_extended; | |
| 12547 | *p++ = 65; | |
| 12548 | } | |
| 4bbe044a AM |
12549 | /* Subsume any padding into the last FDE if user .eh_frame |
| 12550 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12551 | zero padding will be seen as a terminator. */ | |
| 12552 | size = p - htab->glink_eh_frame->contents; | |
| 12553 | align = 1; | |
| 12554 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12555 | align -= 1; | |
| 12556 | pad = ((size + align) & ~align) - size; | |
| 12557 | htab->glink_eh_frame->size = size + pad; | |
| 12558 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 58d180e8 AM |
12559 | } |
| 12560 | ||
| 721956f4 AM |
12561 | /* Build the stubs as directed by the stub hash table. */ |
| 12562 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 12563 | |
| aa8a7074 AM |
12564 | if (htab->relbrlt != NULL) |
| 12565 | htab->relbrlt->reloc_count = 0; | |
| 12566 | ||
| 794e51c0 AM |
12567 | if (htab->plt_stub_align != 0) |
| 12568 | for (stub_sec = htab->stub_bfd->sections; | |
| 12569 | stub_sec != NULL; | |
| 12570 | stub_sec = stub_sec->next) | |
| 12571 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12572 | stub_sec->size = ((stub_sec->size + (1 << htab->plt_stub_align) - 1) | |
| 12573 | & (-1 << htab->plt_stub_align)); | |
| 12574 | ||
| 721956f4 AM |
12575 | for (stub_sec = htab->stub_bfd->sections; |
| 12576 | stub_sec != NULL; | |
| 12577 | stub_sec = stub_sec->next) | |
| e717da7e AM |
12578 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 12579 | { | |
| 12580 | stub_sec_count += 1; | |
| eea6121a | 12581 | if (stub_sec->rawsize != stub_sec->size) |
| e717da7e AM |
12582 | break; |
| 12583 | } | |
| 5d1634d7 | 12584 | |
| 721956f4 | 12585 | if (stub_sec != NULL |
| 58d180e8 AM |
12586 | || htab->glink->rawsize != htab->glink->size |
| 12587 | || (htab->glink_eh_frame != NULL | |
| 12588 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 12589 | { |
| b34976b6 | 12590 | htab->stub_error = TRUE; |
| 8de848d8 | 12591 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 12592 | } |
| 721956f4 | 12593 | |
| d2a300cf AM |
12594 | if (htab->stub_error) |
| 12595 | return FALSE; | |
| 12596 | ||
| 12597 | if (stats != NULL) | |
| 12598 | { | |
| 12599 | *stats = bfd_malloc (500); | |
| 12600 | if (*stats == NULL) | |
| 12601 | return FALSE; | |
| 12602 | ||
| ee75fd95 | 12603 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
12604 | " branch %lu\n" |
| 12605 | " toc adjust %lu\n" | |
| 12606 | " long branch %lu\n" | |
| 12607 | " long toc adj %lu\n" | |
| 794e51c0 AM |
12608 | " plt call %lu\n" |
| 12609 | " plt call toc %lu"), | |
| e717da7e | 12610 | stub_sec_count, |
| ee75fd95 | 12611 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
12612 | htab->stub_count[ppc_stub_long_branch - 1], |
| 12613 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 12614 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 12615 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 AM |
12616 | htab->stub_count[ppc_stub_plt_call - 1], |
| 12617 | htab->stub_count[ppc_stub_plt_call_r2save - 1]); | |
| d2a300cf AM |
12618 | } |
| 12619 | return TRUE; | |
| 5bd4f169 AM |
12620 | } |
| 12621 | ||
| 99877b66 AM |
12622 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 12623 | ||
| 12624 | static bfd_boolean | |
| 12625 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 12626 | { | |
| 12627 | struct ppc_link_hash_entry *eh; | |
| 12628 | ||
| 12629 | if (h->root.type == bfd_link_hash_indirect) | |
| 12630 | return TRUE; | |
| 12631 | ||
| 99877b66 AM |
12632 | eh = (struct ppc_link_hash_entry *) h; |
| 12633 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 12634 | return TRUE; | |
| 12635 | ||
| 12636 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 12637 | return TRUE; | |
| 12638 | } | |
| 12639 | ||
| 12640 | void | |
| 12641 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 12642 | { | |
| 12643 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
12644 | |
| 12645 | if (htab != NULL) | |
| 12646 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
12647 | } |
| 12648 | ||
| 60124e18 AM |
12649 | /* What to do when ld finds relocations against symbols defined in |
| 12650 | discarded sections. */ | |
| 12651 | ||
| 12652 | static unsigned int | |
| 12653 | ppc64_elf_action_discarded (asection *sec) | |
| 12654 | { | |
| 12655 | if (strcmp (".opd", sec->name) == 0) | |
| 12656 | return 0; | |
| 12657 | ||
| 12658 | if (strcmp (".toc", sec->name) == 0) | |
| 12659 | return 0; | |
| 12660 | ||
| bce50a28 JJ |
12661 | if (strcmp (".toc1", sec->name) == 0) |
| 12662 | return 0; | |
| 12663 | ||
| 60124e18 AM |
12664 | return _bfd_elf_default_action_discarded (sec); |
| 12665 | } | |
| 12666 | ||
| 5bd4f169 AM |
12667 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 12668 | to handle the relocations for a section. | |
| 12669 | ||
| 12670 | The relocs are always passed as Rela structures; if the section | |
| 12671 | actually uses Rel structures, the r_addend field will always be | |
| 12672 | zero. | |
| 12673 | ||
| 12674 | This function is responsible for adjust the section contents as | |
| 12675 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 12676 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
12677 | necessary. |
| 12678 | ||
| 12679 | This function does not have to worry about setting the reloc | |
| 12680 | address or the reloc symbol index. | |
| 12681 | ||
| 12682 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 12683 | ||
| 12684 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 12685 | corresponding to the st_shndx field of each local symbol. | |
| 12686 | ||
| 12687 | The global hash table entry for the global symbols can be found | |
| 12688 | via elf_sym_hashes (input_bfd). | |
| 12689 | ||
| 1049f94e | 12690 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
12691 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 12692 | going to be the section symbol corresponding to the output | |
| 12693 | section, which means that the addend must be adjusted | |
| 12694 | accordingly. */ | |
| 12695 | ||
| b34976b6 | 12696 | static bfd_boolean |
| 4ce794b7 AM |
12697 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 12698 | struct bfd_link_info *info, | |
| 12699 | bfd *input_bfd, | |
| 12700 | asection *input_section, | |
| 12701 | bfd_byte *contents, | |
| 12702 | Elf_Internal_Rela *relocs, | |
| 12703 | Elf_Internal_Sym *local_syms, | |
| 12704 | asection **local_sections) | |
| 5bd4f169 | 12705 | { |
| 65f38f15 | 12706 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
12707 | Elf_Internal_Shdr *symtab_hdr; |
| 12708 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 AM |
12709 | Elf_Internal_Rela *rel; |
| 12710 | Elf_Internal_Rela *relend; | |
| 411e1bfb AM |
12711 | Elf_Internal_Rela outrel; |
| 12712 | bfd_byte *loc; | |
| 411e1bfb | 12713 | struct got_entry **local_got_ents; |
| 5bd4f169 | 12714 | bfd_vma TOCstart; |
| b34976b6 AM |
12715 | bfd_boolean ret = TRUE; |
| 12716 | bfd_boolean is_opd; | |
| 794e51c0 AM |
12717 | /* Assume 'at' branch hints. */ |
| 12718 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 12719 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 12720 | |
| 65f38f15 | 12721 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 12722 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
12723 | ppc_howto_init (); |
| 12724 | ||
| 65f38f15 | 12725 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
12726 | if (htab == NULL) |
| 12727 | return FALSE; | |
| ee75fd95 AM |
12728 | |
| 12729 | /* Don't relocate stub sections. */ | |
| 12730 | if (input_section->owner == htab->stub_bfd) | |
| 12731 | return TRUE; | |
| 12732 | ||
| 0c8d6e5c | 12733 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 12734 | |
| 411e1bfb | 12735 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 12736 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 12737 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 12738 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 12739 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 12740 | |
| 5bd4f169 AM |
12741 | rel = relocs; |
| 12742 | relend = relocs + input_section->reloc_count; | |
| 12743 | for (; rel < relend; rel++) | |
| 12744 | { | |
| 04c9666a | 12745 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 12746 | bfd_vma addend; |
| 5bd4f169 AM |
12747 | bfd_reloc_status_type r; |
| 12748 | Elf_Internal_Sym *sym; | |
| 12749 | asection *sec; | |
| 039b3fef AM |
12750 | struct elf_link_hash_entry *h_elf; |
| 12751 | struct ppc_link_hash_entry *h; | |
| 12752 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 12753 | const char *sym_name; |
| 0d4792f7 | 12754 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 12755 | bfd_vma toc_addend; |
| f961d9dd AM |
12756 | unsigned char tls_mask, tls_gd, tls_type; |
| 12757 | unsigned char sym_type; | |
| 5bd4f169 | 12758 | bfd_vma relocation; |
| b34976b6 AM |
12759 | bfd_boolean unresolved_reloc; |
| 12760 | bfd_boolean warned; | |
| bc30df16 | 12761 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 12762 | unsigned int insn; |
| e11840f9 | 12763 | unsigned int mask; |
| 721956f4 AM |
12764 | struct ppc_stub_hash_entry *stub_entry; |
| 12765 | bfd_vma max_br_offset; | |
| 12766 | bfd_vma from; | |
| 31c76678 | 12767 | const Elf_Internal_Rela orig_rel = *rel; |
| 5bd4f169 | 12768 | |
| 4ce794b7 | 12769 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 12770 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
12771 | |
| 12772 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 12773 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 12774 | proper TOC base to use. */ | |
| 12775 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| 12776 | && rel != relocs | |
| 12777 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
| 12778 | && is_opd) | |
| 12779 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
| 12780 | ||
| 4ce794b7 AM |
12781 | sym = NULL; |
| 12782 | sec = NULL; | |
| 039b3fef | 12783 | h_elf = NULL; |
| 4ce794b7 | 12784 | sym_name = NULL; |
| b34976b6 AM |
12785 | unresolved_reloc = FALSE; |
| 12786 | warned = FALSE; | |
| 65f38f15 | 12787 | |
| 0b13192e | 12788 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
12789 | { |
| 12790 | /* It's a local symbol. */ | |
| 74f0fb50 | 12791 | struct _opd_sec_data *opd; |
| 4025353c | 12792 | |
| 5bd4f169 AM |
12793 | sym = local_syms + r_symndx; |
| 12794 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 12795 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 12796 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 12797 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
12798 | opd = get_opd_info (sec); |
| 12799 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 12800 | { |
| 74f0fb50 | 12801 | long adjust = opd->adjust[(sym->st_value + rel->r_addend) / 8]; |
| 4025353c AM |
12802 | if (adjust == -1) |
| 12803 | relocation = 0; | |
| 12804 | else | |
| 4cc603a5 AM |
12805 | { |
| 12806 | /* If this is a relocation against the opd section sym | |
| 12807 | and we have edited .opd, adjust the reloc addend so | |
| 12808 | that ld -r and ld --emit-relocs output is correct. | |
| 12809 | If it is a reloc against some other .opd symbol, | |
| 12810 | then the symbol value will be adjusted later. */ | |
| 12811 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 12812 | rel->r_addend += adjust; | |
| 12813 | else | |
| 12814 | relocation += adjust; | |
| 12815 | } | |
| 1e2f5b6e | 12816 | } |
| 5bd4f169 AM |
12817 | } |
| 12818 | else | |
| 12819 | { | |
| b2a8e766 AM |
12820 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 12821 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 12822 | h_elf, sec, relocation, |
| b2a8e766 | 12823 | unresolved_reloc, warned); |
| 039b3fef AM |
12824 | sym_name = h_elf->root.root.string; |
| 12825 | sym_type = h_elf->type; | |
| b69fdb4e AM |
12826 | if (sec != NULL |
| 12827 | && sec->owner == output_bfd | |
| 12828 | && strcmp (sec->name, ".opd") == 0) | |
| 12829 | { | |
| 12830 | /* This is a symbol defined in a linker script. All | |
| 12831 | such are defined in output sections, even those | |
| 12832 | defined by simple assignment from a symbol defined in | |
| 12833 | an input section. Transfer the symbol to an | |
| 12834 | appropriate input .opd section, so that a branch to | |
| 12835 | this symbol will be mapped to the location specified | |
| 12836 | by the opd entry. */ | |
| 12837 | struct bfd_link_order *lo; | |
| 12838 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 12839 | if (lo->type == bfd_indirect_link_order) | |
| 12840 | { | |
| 12841 | asection *isec = lo->u.indirect.section; | |
| 12842 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 12843 | && h_elf->root.u.def.value < (isec->output_offset | |
| 12844 | + isec->size)) | |
| 12845 | { | |
| 12846 | h_elf->root.u.def.value -= isec->output_offset; | |
| 12847 | h_elf->root.u.def.section = isec; | |
| 12848 | sec = isec; | |
| 12849 | break; | |
| 12850 | } | |
| 12851 | } | |
| 12852 | } | |
| 5bd4f169 | 12853 | } |
| 039b3fef | 12854 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 12855 | |
| dbaa2011 | 12856 | if (sec != NULL && discarded_section (sec)) |
| e4067dbb | 12857 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
| 545fd46b MR |
12858 | rel, 1, relend, |
| 12859 | ppc64_elf_howto_table[r_type], 0, | |
| e4067dbb | 12860 | contents); |
| ab96bf03 AM |
12861 | |
| 12862 | if (info->relocatable) | |
| 12863 | continue; | |
| 12864 | ||
| f40da81b AM |
12865 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 12866 | { | |
| 12867 | relocation = (TOCstart | |
| 12868 | + htab->stub_group[input_section->id].toc_off); | |
| 12869 | sec = bfd_abs_section_ptr; | |
| 12870 | unresolved_reloc = FALSE; | |
| 12871 | } | |
| 12872 | ||
| 951fd09b AM |
12873 | /* TLS optimizations. Replace instruction sequences and relocs |
| 12874 | based on information we collected in tls_optimize. We edit | |
| 12875 | RELOCS so that --emit-relocs will output something sensible | |
| 12876 | for the final instruction stream. */ | |
| 12877 | tls_mask = 0; | |
| 12878 | tls_gd = 0; | |
| 0d4792f7 | 12879 | toc_symndx = 0; |
| 727fc41e AM |
12880 | if (h != NULL) |
| 12881 | tls_mask = h->tls_mask; | |
| 12882 | else if (local_got_ents != NULL) | |
| 411e1bfb | 12883 | { |
| e054468f AM |
12884 | struct plt_entry **local_plt = (struct plt_entry **) |
| 12885 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 12886 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 12887 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
12888 | tls_mask = lgot_masks[r_symndx]; |
| 12889 | } | |
| 12890 | if (tls_mask == 0 | |
| 12891 | && (r_type == R_PPC64_TLS | |
| 12892 | || r_type == R_PPC64_TLSGD | |
| 12893 | || r_type == R_PPC64_TLSLD)) | |
| 12894 | { | |
| 12895 | /* Check for toc tls entries. */ | |
| f961d9dd | 12896 | unsigned char *toc_tls; |
| 0d4792f7 | 12897 | |
| 727fc41e AM |
12898 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 12899 | &local_syms, rel, input_bfd)) | |
| 12900 | return FALSE; | |
| 0d4792f7 | 12901 | |
| 727fc41e AM |
12902 | if (toc_tls) |
| 12903 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
12904 | } |
| 12905 | ||
| 12906 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 12907 | relocs are used with non-tls syms. */ | |
| cf35638d | 12908 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
12909 | && r_type != R_PPC64_NONE |
| 12910 | && (h == NULL | |
| 039b3fef AM |
12911 | || h->elf.root.type == bfd_link_hash_defined |
| 12912 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
12913 | && (IS_PPC64_TLS_RELOC (r_type) |
| 12914 | != (sym_type == STT_TLS | |
| 12915 | || (sym_type == STT_SECTION | |
| 12916 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 12917 | { |
| 727fc41e AM |
12918 | if (tls_mask != 0 |
| 12919 | && (r_type == R_PPC64_TLS | |
| 12920 | || r_type == R_PPC64_TLSGD | |
| 12921 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
12922 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 12923 | ; | |
| 12924 | else | |
| 25f53a85 | 12925 | info->callbacks->einfo |
| 1d483afe | 12926 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
12927 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 12928 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 12929 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
12930 | ppc64_elf_howto_table[r_type]->name, |
| 12931 | sym_name); | |
| 411e1bfb AM |
12932 | } |
| 12933 | ||
| 12934 | /* Ensure reloc mapping code below stays sane. */ | |
| 12935 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 12936 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 12937 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 12938 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 12939 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 12940 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 12941 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 12942 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 12943 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 12944 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 12945 | abort (); | |
| 0d4792f7 | 12946 | |
| 411e1bfb AM |
12947 | switch (r_type) |
| 12948 | { | |
| 12949 | default: | |
| 411e1bfb AM |
12950 | break; |
| 12951 | ||
| ba761f19 AM |
12952 | case R_PPC64_LO_DS_OPT: |
| 12953 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 12954 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 12955 | abort (); | |
| 12956 | insn += (14u << 26) - (58u << 26); | |
| 12957 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 12958 | r_type = R_PPC64_TOC16_LO; | |
| 12959 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 12960 | break; | |
| 12961 | ||
| 411e1bfb AM |
12962 | case R_PPC64_TOC16: |
| 12963 | case R_PPC64_TOC16_LO: | |
| 12964 | case R_PPC64_TOC16_DS: | |
| 12965 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
12966 | { |
| 12967 | /* Check for toc tls entries. */ | |
| f961d9dd | 12968 | unsigned char *toc_tls; |
| 951fd09b | 12969 | int retval; |
| 411e1bfb | 12970 | |
| 3a71aa26 AM |
12971 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 12972 | &local_syms, rel, input_bfd); | |
| 951fd09b | 12973 | if (retval == 0) |
| 411e1bfb AM |
12974 | return FALSE; |
| 12975 | ||
| 12976 | if (toc_tls) | |
| 12977 | { | |
| 951fd09b | 12978 | tls_mask = *toc_tls; |
| 411e1bfb AM |
12979 | if (r_type == R_PPC64_TOC16_DS |
| 12980 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
12981 | { |
| 12982 | if (tls_mask != 0 | |
| 12983 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 12984 | goto toctprel; | |
| 12985 | } | |
| 411e1bfb | 12986 | else |
| 951fd09b AM |
12987 | { |
| 12988 | /* If we found a GD reloc pair, then we might be | |
| 12989 | doing a GD->IE transition. */ | |
| 12990 | if (retval == 2) | |
| 12991 | { | |
| 12992 | tls_gd = TLS_TPRELGD; | |
| 12993 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 12994 | goto tls_ldgd_opt; |
| 951fd09b AM |
12995 | } |
| 12996 | else if (retval == 3) | |
| 12997 | { | |
| 12998 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 12999 | goto tls_ldgd_opt; |
| 951fd09b AM |
13000 | } |
| 13001 | } | |
| 411e1bfb AM |
13002 | } |
| 13003 | } | |
| 13004 | break; | |
| 13005 | ||
| 9d6ded02 AM |
13006 | case R_PPC64_GOT_TPREL16_HI: |
| 13007 | case R_PPC64_GOT_TPREL16_HA: | |
| 13008 | if (tls_mask != 0 | |
| 13009 | && (tls_mask & TLS_TPREL) == 0) | |
| 13010 | { | |
| 13011 | rel->r_offset -= d_offset; | |
| 13012 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 13013 | r_type = R_PPC64_NONE; | |
| 13014 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13015 | } | |
| 13016 | break; | |
| 13017 | ||
| 411e1bfb AM |
13018 | case R_PPC64_GOT_TPREL16_DS: |
| 13019 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13020 | if (tls_mask != 0 |
| 13021 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13022 | { |
| 81407a69 | 13023 | toctprel: |
| 4fe5ca5b | 13024 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13025 | insn &= 31 << 21; |
| 13026 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 4fe5ca5b | 13027 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); |
| 411e1bfb | 13028 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13029 | if (toc_symndx != 0) |
| 13030 | { | |
| 13031 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13032 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13033 | /* We changed the symbol. Start over in order to |
| 13034 | get h, sym, sec etc. right. */ | |
| 13035 | rel--; | |
| 13036 | continue; | |
| 13037 | } | |
| 13038 | else | |
| 13039 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13040 | } |
| 13041 | break; | |
| 13042 | ||
| 13043 | case R_PPC64_TLS: | |
| 951fd09b AM |
13044 | if (tls_mask != 0 |
| 13045 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13046 | { |
| 411e1bfb | 13047 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13048 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13049 | if (insn == 0) | |
| 411e1bfb | 13050 | abort (); |
| 411e1bfb | 13051 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13052 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13053 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13054 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13055 | r_type = R_PPC64_TPREL16_LO; |
| 13056 | if (toc_symndx != 0) | |
| 13057 | { | |
| 13058 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13059 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13060 | /* We changed the symbol. Start over in order to |
| 13061 | get h, sym, sec etc. right. */ | |
| 13062 | rel--; | |
| 13063 | continue; | |
| 13064 | } | |
| 13065 | else | |
| 13066 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13067 | } |
| 13068 | break; | |
| 13069 | ||
| 411e1bfb AM |
13070 | case R_PPC64_GOT_TLSGD16_HI: |
| 13071 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13072 | tls_gd = TLS_TPRELGD; |
| 13073 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13074 | goto tls_gdld_hi; | |
| 13075 | break; | |
| 13076 | ||
| 411e1bfb AM |
13077 | case R_PPC64_GOT_TLSLD16_HI: |
| 13078 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13079 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13080 | { |
| 951fd09b AM |
13081 | tls_gdld_hi: |
| 13082 | if ((tls_mask & tls_gd) != 0) | |
| 13083 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13084 | + R_PPC64_GOT_TPREL16_DS); | |
| 13085 | else | |
| 411e1bfb | 13086 | { |
| 4fe5ca5b | 13087 | rel->r_offset -= d_offset; |
| 727ac201 | 13088 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13089 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13090 | } |
| 951fd09b | 13091 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13092 | } |
| 13093 | break; | |
| 13094 | ||
| 951fd09b AM |
13095 | case R_PPC64_GOT_TLSGD16: |
| 13096 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13097 | tls_gd = TLS_TPRELGD; | |
| 13098 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13099 | goto tls_ldgd_opt; |
| 951fd09b | 13100 | break; |
| 411e1bfb | 13101 | |
| 951fd09b AM |
13102 | case R_PPC64_GOT_TLSLD16: |
| 13103 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13104 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13105 | { | |
| 3a71aa26 | 13106 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13107 | bfd_vma offset; |
| 13108 | ||
| 13109 | tls_ldgd_opt: | |
| 727fc41e AM |
13110 | offset = (bfd_vma) -1; |
| 13111 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13112 | __tls_get_addr calls, we must trust that the call | |
| 13113 | stays with its arg setup insns, ie. that the next | |
| 13114 | reloc is the __tls_get_addr call associated with | |
| 13115 | the current reloc. Edit both insns. */ | |
| 13116 | if (input_section->has_tls_get_addr_call | |
| 13117 | && rel + 1 < relend | |
| 13118 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13119 | htab->tls_get_addr, | |
| 13120 | htab->tls_get_addr_fd)) | |
| 13121 | offset = rel[1].r_offset; | |
| 102890f0 | 13122 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13123 | { |
| 102890f0 | 13124 | /* IE */ |
| 3a71aa26 AM |
13125 | insn1 = bfd_get_32 (output_bfd, |
| 13126 | contents + rel->r_offset - d_offset); | |
| 102890f0 AM |
13127 | insn1 &= (1 << 26) - (1 << 2); |
| 13128 | insn1 |= 58 << 26; /* ld */ | |
| 13129 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13130 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13131 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13132 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13133 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13134 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13135 | else |
| 102890f0 AM |
13136 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13137 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13138 | } | |
| 13139 | else | |
| 13140 | { | |
| 13141 | /* LE */ | |
| 13142 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
| 13143 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13144 | if (tls_gd == 0) | |
| 951fd09b | 13145 | { |
| 102890f0 | 13146 | /* Was an LD reloc. */ |
| 1d483afe AM |
13147 | if (toc_symndx) |
| 13148 | sec = local_sections[toc_symndx]; | |
| 13149 | for (r_symndx = 0; | |
| 13150 | r_symndx < symtab_hdr->sh_info; | |
| 13151 | r_symndx++) | |
| 13152 | if (local_sections[r_symndx] == sec) | |
| 13153 | break; | |
| 13154 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13155 | r_symndx = STN_UNDEF; |
| 102890f0 | 13156 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13157 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13158 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13159 | + sec->output_offset | |
| 13160 | + sec->output_section->vma); | |
| 951fd09b | 13161 | } |
| 102890f0 | 13162 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13163 | { |
| 13164 | r_symndx = toc_symndx; | |
| 13165 | rel->r_addend = toc_addend; | |
| 13166 | } | |
| 102890f0 AM |
13167 | r_type = R_PPC64_TPREL16_HA; |
| 13168 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13169 | if (offset != (bfd_vma) -1) |
| 13170 | { | |
| 13171 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13172 | R_PPC64_TPREL16_LO); | |
| 13173 | rel[1].r_offset = offset + d_offset; | |
| 13174 | rel[1].r_addend = rel->r_addend; | |
| 13175 | } | |
| 102890f0 | 13176 | } |
| 3a71aa26 AM |
13177 | bfd_put_32 (output_bfd, insn1, |
| 13178 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13179 | if (offset != (bfd_vma) -1) |
| 13180 | { | |
| 13181 | insn3 = bfd_get_32 (output_bfd, | |
| 13182 | contents + offset + 4); | |
| 13183 | if (insn3 == NOP | |
| 13184 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13185 | { | |
| 13186 | rel[1].r_offset += 4; | |
| 13187 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13188 | insn2 = NOP; | |
| 13189 | } | |
| 13190 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13191 | } | |
| 13192 | if ((tls_mask & tls_gd) == 0 | |
| 13193 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13194 | { | |
| 13195 | /* We changed the symbol. Start over in order | |
| 13196 | to get h, sym, sec etc. right. */ | |
| 13197 | rel--; | |
| 13198 | continue; | |
| 13199 | } | |
| 13200 | } | |
| 13201 | break; | |
| 13202 | ||
| 13203 | case R_PPC64_TLSGD: | |
| 13204 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13205 | { | |
| 13206 | unsigned int insn2, insn3; | |
| 13207 | bfd_vma offset = rel->r_offset; | |
| 13208 | ||
| 13209 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13210 | { | |
| 13211 | /* IE */ | |
| 13212 | r_type = R_PPC64_NONE; | |
| 13213 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13214 | } | |
| 13215 | else | |
| 13216 | { | |
| 13217 | /* LE */ | |
| 13218 | if (toc_symndx != 0) | |
| 13219 | { | |
| 13220 | r_symndx = toc_symndx; | |
| 13221 | rel->r_addend = toc_addend; | |
| 13222 | } | |
| 13223 | r_type = R_PPC64_TPREL16_LO; | |
| 13224 | rel->r_offset = offset + d_offset; | |
| 13225 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13226 | } | |
| 13227 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13228 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13229 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13230 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13231 | insn3 = bfd_get_32 (output_bfd, |
| 13232 | contents + offset + 4); | |
| 102890f0 AM |
13233 | if (insn3 == NOP |
| 13234 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13235 | { | |
| 727fc41e | 13236 | rel->r_offset += 4; |
| 3a71aa26 AM |
13237 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13238 | insn2 = NOP; | |
| 102890f0 | 13239 | } |
| 102890f0 | 13240 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13241 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| 102890f0 | 13242 | { |
| 102890f0 AM |
13243 | rel--; |
| 13244 | continue; | |
| 411e1bfb | 13245 | } |
| 411e1bfb | 13246 | } |
| 411e1bfb AM |
13247 | break; |
| 13248 | ||
| 727fc41e AM |
13249 | case R_PPC64_TLSLD: |
| 13250 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13251 | { | |
| 13252 | unsigned int insn2, insn3; | |
| 13253 | bfd_vma offset = rel->r_offset; | |
| 13254 | ||
| 13255 | if (toc_symndx) | |
| 13256 | sec = local_sections[toc_symndx]; | |
| 13257 | for (r_symndx = 0; | |
| 13258 | r_symndx < symtab_hdr->sh_info; | |
| 13259 | r_symndx++) | |
| 13260 | if (local_sections[r_symndx] == sec) | |
| 13261 | break; | |
| 13262 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13263 | r_symndx = STN_UNDEF; |
| 727fc41e | 13264 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13265 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13266 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13267 | + sec->output_offset | |
| 13268 | + sec->output_section->vma); | |
| 13269 | ||
| 13270 | r_type = R_PPC64_TPREL16_LO; | |
| 13271 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13272 | rel->r_offset = offset + d_offset; | |
| 13273 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13274 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13275 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13276 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13277 | insn3 = bfd_get_32 (output_bfd, | |
| 13278 | contents + offset + 4); | |
| 13279 | if (insn3 == NOP | |
| 13280 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13281 | { | |
| 13282 | rel->r_offset += 4; | |
| 13283 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13284 | insn2 = NOP; | |
| 13285 | } | |
| 13286 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13287 | rel--; | |
| 13288 | continue; | |
| 13289 | } | |
| 13290 | break; | |
| 13291 | ||
| 411e1bfb | 13292 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13293 | if (rel + 1 < relend |
| 13294 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13295 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13296 | { |
| 951fd09b AM |
13297 | if ((tls_mask & TLS_GD) == 0) |
| 13298 | { | |
| 13299 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13300 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13301 | r_type = R_PPC64_TPREL64; | |
| 13302 | else | |
| 13303 | { | |
| 4ce794b7 | 13304 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13305 | r_type = R_PPC64_NONE; |
| 13306 | } | |
| 13307 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13308 | } | |
| 13309 | } | |
| 13310 | else | |
| 13311 | { | |
| 13312 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13313 | { |
| 4ce794b7 | 13314 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13315 | r_type = R_PPC64_NONE; |
| 951fd09b | 13316 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13317 | } |
| 411e1bfb AM |
13318 | } |
| 13319 | break; | |
| 13320 | ||
| 13321 | case R_PPC64_TPREL64: | |
| 951fd09b | 13322 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13323 | { |
| 13324 | r_type = R_PPC64_NONE; | |
| 13325 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13326 | } | |
| 13327 | break; | |
| 13328 | } | |
| 13329 | ||
| 13330 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13331 | insn = 0; |
| b25116a9 AM |
13332 | max_br_offset = 1 << 25; |
| 13333 | addend = rel->r_addend; | |
| bc30df16 | 13334 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13335 | switch (r_type) |
| 5bd4f169 AM |
13336 | { |
| 13337 | default: | |
| 65f38f15 | 13338 | break; |
| 5bd4f169 | 13339 | |
| 3b421ab3 AM |
13340 | case R_PPC64_TOCSAVE: |
| 13341 | if (relocation + addend == (rel->r_offset | |
| 13342 | + input_section->output_offset | |
| 13343 | + input_section->output_section->vma) | |
| 13344 | && tocsave_find (htab, NO_INSERT, | |
| 13345 | &local_syms, rel, input_bfd)) | |
| 13346 | { | |
| 13347 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13348 | if (insn == NOP | |
| 13349 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
13350 | bfd_put_32 (input_bfd, |
| 13351 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
13352 | contents + rel->r_offset); |
| 13353 | } | |
| 13354 | break; | |
| 13355 | ||
| 65f38f15 AM |
13356 | /* Branch taken prediction relocations. */ |
| 13357 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13358 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13359 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13360 | /* Fall thru. */ | |
| 65f38f15 | 13361 | |
| 86c76c7b | 13362 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13363 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13364 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13365 | insn |= bfd_get_32 (output_bfd, |
| 13366 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13367 | /* Fall thru. */ |
| 86c76c7b | 13368 | |
| b25116a9 AM |
13369 | case R_PPC64_REL14: |
| 13370 | max_br_offset = 1 << 15; | |
| 13371 | /* Fall thru. */ | |
| 5bd4f169 | 13372 | |
| 65f38f15 | 13373 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
13374 | /* Calls to functions with a different TOC, such as calls to |
| 13375 | shared objects, need to alter the TOC pointer. This is | |
| 13376 | done using a linkage stub. A REL24 branching to these | |
| 13377 | linkage stubs needs to be followed by a nop, as the nop | |
| 13378 | will be replaced with an instruction to restore the TOC | |
| 13379 | base pointer. */ | |
| 8387904d | 13380 | fdh = h; |
| b31867b6 AM |
13381 | if (h != NULL |
| 13382 | && h->oh != NULL | |
| 13383 | && h->oh->is_func_descriptor) | |
| 13384 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
13385 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 13386 | htab); | |
| 6abec6bc | 13387 | if (stub_entry != NULL |
| ad8e1ba5 | 13388 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 13389 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
13390 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 13391 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 13392 | { |
| b25116a9 | 13393 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 13394 | |
| ba8ca3e7 AM |
13395 | /* All of these stubs will modify r2, so there must be a |
| 13396 | branch and link followed by a nop. The nop is | |
| 13397 | replaced by an insn to restore r2. */ | |
| eea6121a | 13398 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 13399 | { |
| ba8ca3e7 AM |
13400 | unsigned long br; |
| 13401 | ||
| 13402 | br = bfd_get_32 (input_bfd, | |
| 13403 | contents + rel->r_offset); | |
| 13404 | if ((br & 1) != 0) | |
| 41bd81ab | 13405 | { |
| ba8ca3e7 AM |
13406 | unsigned long nop; |
| 13407 | ||
| 13408 | nop = bfd_get_32 (input_bfd, | |
| 13409 | contents + rel->r_offset + 4); | |
| 13410 | if (nop == NOP | |
| 13411 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 13412 | { |
| ba8ca3e7 AM |
13413 | if (h != NULL |
| 13414 | && (h == htab->tls_get_addr_fd | |
| 13415 | || h == htab->tls_get_addr) | |
| 13416 | && !htab->no_tls_get_addr_opt) | |
| 13417 | { | |
| 13418 | /* Special stub used, leave nop alone. */ | |
| 13419 | } | |
| 13420 | else | |
| a078d95a AM |
13421 | bfd_put_32 (input_bfd, |
| 13422 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
13423 | contents + rel->r_offset + 4); |
| 13424 | can_plt_call = TRUE; | |
| a7f2871e | 13425 | } |
| 41bd81ab | 13426 | } |
| 5bd4f169 | 13427 | } |
| 721956f4 | 13428 | |
| ba8ca3e7 | 13429 | if (!can_plt_call && h != NULL) |
| 721956f4 | 13430 | { |
| ba8ca3e7 AM |
13431 | const char *name = h->elf.root.root.string; |
| 13432 | ||
| 13433 | if (*name == '.') | |
| 13434 | ++name; | |
| 13435 | ||
| 13436 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 13437 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 13438 | { |
| ba8ca3e7 AM |
13439 | /* Allow crt1 branch to go via a toc adjusting |
| 13440 | stub. Other calls that never return could do | |
| 13441 | the same, if we could detect such. */ | |
| b25116a9 | 13442 | can_plt_call = TRUE; |
| 6ab189d5 | 13443 | } |
| ba8ca3e7 AM |
13444 | } |
| 13445 | ||
| 13446 | if (!can_plt_call) | |
| 13447 | { | |
| 13448 | /* g++ as of 20130507 emits self-calls without a | |
| 13449 | following nop. This is arguably wrong since we | |
| 13450 | have conflicting information. On the one hand a | |
| 13451 | global symbol and on the other a local call | |
| 13452 | sequence, but don't error for this special case. | |
| 13453 | It isn't possible to cheaply verify we have | |
| 13454 | exactly such a call. Allow all calls to the same | |
| 13455 | section. */ | |
| 13456 | asection *code_sec = sec; | |
| 13457 | ||
| 13458 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 13459 | { |
| ba8ca3e7 AM |
13460 | bfd_vma off = (relocation + addend |
| 13461 | - sec->output_section->vma | |
| 13462 | - sec->output_offset); | |
| bc30df16 | 13463 | |
| ba8ca3e7 | 13464 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 13465 | } |
| ba8ca3e7 AM |
13466 | if (code_sec == input_section) |
| 13467 | can_plt_call = TRUE; | |
| 13468 | } | |
| 13469 | ||
| 13470 | if (!can_plt_call) | |
| 13471 | { | |
| 13472 | info->callbacks->einfo | |
| 13473 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 13474 | "recompile with -fPIC"), | |
| 13475 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 13476 | ||
| 13477 | bfd_set_error (bfd_error_bad_value); | |
| 13478 | ret = FALSE; | |
| 721956f4 AM |
13479 | } |
| 13480 | ||
| b25116a9 | 13481 | if (can_plt_call |
| 794e51c0 AM |
13482 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 13483 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
13484 | unresolved_reloc = FALSE; |
| 13485 | } | |
| 13486 | ||
| 6abec6bc AM |
13487 | if ((stub_entry == NULL |
| 13488 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 13489 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
13490 | && get_opd_info (sec) != NULL) |
| 13491 | { | |
| 13492 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
13493 | bfd_vma off = (relocation + addend |
| 13494 | - sec->output_section->vma | |
| 13495 | - sec->output_offset); | |
| aef36ac1 | 13496 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
13497 | if (dest != (bfd_vma) -1) |
| 13498 | { | |
| 13499 | relocation = dest; | |
| 13500 | addend = 0; | |
| bc30df16 | 13501 | reloc_dest = DEST_OPD; |
| 8387904d AM |
13502 | } |
| 13503 | } | |
| 13504 | ||
| b25116a9 AM |
13505 | /* If the branch is out of reach we ought to have a long |
| 13506 | branch stub. */ | |
| 13507 | from = (rel->r_offset | |
| 13508 | + input_section->output_offset | |
| 13509 | + input_section->output_section->vma); | |
| 13510 | ||
| 6911b7dc AM |
13511 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 13512 | ? fdh->elf.other | |
| 13513 | : sym->st_other); | |
| 13514 | ||
| 6abec6bc AM |
13515 | if (stub_entry != NULL |
| 13516 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 13517 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 13518 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 13519 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 13520 | || (relocation + addend - from + max_br_offset | |
| 13521 | < 2 * max_br_offset))) | |
| 13522 | /* Don't use the stub if this branch is in range. */ | |
| 13523 | stub_entry = NULL; | |
| b25116a9 AM |
13524 | |
| 13525 | if (stub_entry != NULL) | |
| 13526 | { | |
| 13527 | /* Munge up the value and addend so that we call the stub | |
| 13528 | rather than the procedure directly. */ | |
| 13529 | relocation = (stub_entry->stub_offset | |
| 13530 | + stub_entry->stub_sec->output_offset | |
| 13531 | + stub_entry->stub_sec->output_section->vma); | |
| 13532 | addend = 0; | |
| bc30df16 | 13533 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 13534 | |
| 794e51c0 AM |
13535 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 13536 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 13537 | && (ALWAYS_EMIT_R2SAVE | |
| 13538 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
13539 | && rel + 1 < relend |
| 13540 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13541 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 13542 | relocation += 4; | |
| b25116a9 AM |
13543 | } |
| 13544 | ||
| 13545 | if (insn != 0) | |
| 13546 | { | |
| 794e51c0 | 13547 | if (is_isa_v2) |
| 721956f4 | 13548 | { |
| b25116a9 AM |
13549 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 13550 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 13551 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 13552 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 13553 | insn |= 0x02 << 21; | |
| 13554 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 13555 | insn |= 0x08 << 21; | |
| 13556 | else | |
| 13557 | break; | |
| 13558 | } | |
| 13559 | else | |
| 13560 | { | |
| 13561 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 13562 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 13563 | insn ^= 0x01 << 21; |
| 721956f4 | 13564 | } |
| b25116a9 AM |
13565 | |
| 13566 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 13567 | } |
| e86ce104 | 13568 | |
| 06da1e8e AM |
13569 | /* NOP out calls to undefined weak functions. |
| 13570 | We can thus call a weak function without first | |
| 13571 | checking whether the function is defined. */ | |
| b25116a9 | 13572 | else if (h != NULL |
| 039b3fef | 13573 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 13574 | && h->elf.dynindx == -1 |
| b25116a9 AM |
13575 | && r_type == R_PPC64_REL24 |
| 13576 | && relocation == 0 | |
| 4cc603a5 | 13577 | && addend == 0) |
| e86ce104 | 13578 | { |
| 06da1e8e AM |
13579 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 13580 | continue; | |
| e86ce104 | 13581 | } |
| 65f38f15 AM |
13582 | break; |
| 13583 | } | |
| 5bd4f169 | 13584 | |
| 65f38f15 | 13585 | /* Set `addend'. */ |
| 411e1bfb | 13586 | tls_type = 0; |
| 65f38f15 AM |
13587 | switch (r_type) |
| 13588 | { | |
| 13589 | default: | |
| 25f53a85 | 13590 | info->callbacks->einfo |
| bc30df16 | 13591 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 13592 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 13593 | |
| 65f38f15 | 13594 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 13595 | ret = FALSE; |
| 65f38f15 | 13596 | continue; |
| 5bd4f169 | 13597 | |
| 65f38f15 | 13598 | case R_PPC64_NONE: |
| 411e1bfb | 13599 | case R_PPC64_TLS: |
| 727fc41e AM |
13600 | case R_PPC64_TLSGD: |
| 13601 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 13602 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
13603 | case R_PPC64_GNU_VTINHERIT: |
| 13604 | case R_PPC64_GNU_VTENTRY: | |
| 65f38f15 | 13605 | continue; |
| 5bd4f169 AM |
13606 | |
| 13607 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 13608 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 13609 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 13610 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
13611 | case R_PPC64_GOT_TLSGD16: |
| 13612 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13613 | case R_PPC64_GOT_TLSGD16_HI: | |
| 13614 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 13615 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
13616 | goto dogot; |
| 13617 | ||
| 13618 | case R_PPC64_GOT_TLSLD16: | |
| 13619 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13620 | case R_PPC64_GOT_TLSLD16_HI: | |
| 13621 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13622 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
13623 | goto dogot; |
| 13624 | ||
| 13625 | case R_PPC64_GOT_TPREL16_DS: | |
| 13626 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 13627 | case R_PPC64_GOT_TPREL16_HI: | |
| 13628 | case R_PPC64_GOT_TPREL16_HA: | |
| 13629 | tls_type = TLS_TLS | TLS_TPREL; | |
| 13630 | goto dogot; | |
| 13631 | ||
| 13632 | case R_PPC64_GOT_DTPREL16_DS: | |
| 13633 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 13634 | case R_PPC64_GOT_DTPREL16_HI: | |
| 13635 | case R_PPC64_GOT_DTPREL16_HA: | |
| 13636 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 13637 | goto dogot; | |
| 13638 | ||
| 65f38f15 AM |
13639 | case R_PPC64_GOT16: |
| 13640 | case R_PPC64_GOT16_LO: | |
| 13641 | case R_PPC64_GOT16_HI: | |
| 13642 | case R_PPC64_GOT16_HA: | |
| 13643 | case R_PPC64_GOT16_DS: | |
| 13644 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 13645 | dogot: |
| 5bd4f169 AM |
13646 | { |
| 13647 | /* Relocation is to the entry for this symbol in the global | |
| 13648 | offset table. */ | |
| e717da7e | 13649 | asection *got; |
| d881513a | 13650 | bfd_vma *offp; |
| 5bd4f169 | 13651 | bfd_vma off; |
| d881513a | 13652 | unsigned long indx = 0; |
| 927be08e | 13653 | struct got_entry *ent; |
| 65f38f15 | 13654 | |
| d881513a AM |
13655 | if (tls_type == (TLS_TLS | TLS_LD) |
| 13656 | && (h == NULL | |
| f5385ebf | 13657 | || !h->elf.def_dynamic)) |
| 927be08e | 13658 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 13659 | else |
| 5bd4f169 | 13660 | { |
| 5bd4f169 | 13661 | |
| d881513a AM |
13662 | if (h != NULL) |
| 13663 | { | |
| 13664 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 039b3fef AM |
13665 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
| 13666 | &h->elf) | |
| d881513a | 13667 | || (info->shared |
| 726d3ab0 | 13668 | && SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| d881513a AM |
13669 | /* This is actually a static link, or it is a |
| 13670 | -Bsymbolic link and the symbol is defined | |
| 13671 | locally, or the symbol was forced to be local | |
| 13672 | because of a version file. */ | |
| 13673 | ; | |
| 13674 | else | |
| 13675 | { | |
| 14acf4dc | 13676 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 13677 | indx = h->elf.dynindx; |
| d881513a AM |
13678 | unresolved_reloc = FALSE; |
| 13679 | } | |
| 039b3fef | 13680 | ent = h->elf.got.glist; |
| d881513a | 13681 | } |
| 411e1bfb | 13682 | else |
| 5bd4f169 | 13683 | { |
| d881513a AM |
13684 | if (local_got_ents == NULL) |
| 13685 | abort (); | |
| 13686 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 13687 | } |
| d881513a AM |
13688 | |
| 13689 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 13690 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 13691 | && ent->owner == input_bfd |
| d881513a AM |
13692 | && ent->tls_type == tls_type) |
| 13693 | break; | |
| 5bd4f169 | 13694 | } |
| 411e1bfb | 13695 | |
| 927be08e AM |
13696 | if (ent == NULL) |
| 13697 | abort (); | |
| 13698 | if (ent->is_indirect) | |
| 13699 | ent = ent->got.ent; | |
| 13700 | offp = &ent->got.offset; | |
| 13701 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
13702 | if (got == NULL) |
| 13703 | abort (); | |
| 13704 | ||
| 411e1bfb AM |
13705 | /* The offset must always be a multiple of 8. We use the |
| 13706 | least significant bit to record whether we have already | |
| 13707 | processed this entry. */ | |
| d881513a | 13708 | off = *offp; |
| 411e1bfb AM |
13709 | if ((off & 1) != 0) |
| 13710 | off &= ~1; | |
| 5bd4f169 AM |
13711 | else |
| 13712 | { | |
| 411e1bfb AM |
13713 | /* Generate relocs for the dynamic linker, except in |
| 13714 | the case of TLSLD where we'll use one entry per | |
| 13715 | module. */ | |
| 25f23106 AM |
13716 | asection *relgot; |
| 13717 | bfd_boolean ifunc; | |
| e717da7e | 13718 | |
| d881513a | 13719 | *offp = off | 1; |
| 25f23106 AM |
13720 | relgot = NULL; |
| 13721 | ifunc = (h != NULL | |
| 13722 | ? h->elf.type == STT_GNU_IFUNC | |
| 13723 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 13724 | if (ifunc) |
| 25f23106 | 13725 | relgot = htab->reliplt; |
| 19e08130 AM |
13726 | else if ((info->shared || indx != 0) |
| 13727 | && (h == NULL | |
| 13728 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 13729 | && !h->elf.def_dynamic) | |
| 13730 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 13731 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 13732 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 13733 | if (relgot != NULL) |
| 5bd4f169 | 13734 | { |
| e717da7e AM |
13735 | outrel.r_offset = (got->output_section->vma |
| 13736 | + got->output_offset | |
| 411e1bfb | 13737 | + off); |
| 4cc603a5 | 13738 | outrel.r_addend = addend; |
| d881513a | 13739 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 13740 | { |
| 411e1bfb | 13741 | outrel.r_addend = 0; |
| e515b051 | 13742 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
13743 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 13744 | { | |
| e717da7e AM |
13745 | loc = relgot->contents; |
| 13746 | loc += (relgot->reloc_count++ | |
| d881513a AM |
13747 | * sizeof (Elf64_External_Rela)); |
| 13748 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 13749 | &outrel, loc); | |
| e515b051 | 13750 | outrel.r_offset += 8; |
| 4cc603a5 | 13751 | outrel.r_addend = addend; |
| d881513a AM |
13752 | outrel.r_info |
| 13753 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 13754 | } |
| 411e1bfb | 13755 | } |
| 951fd09b | 13756 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 13757 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 13758 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 13759 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
13760 | else if (indx != 0) |
| 13761 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 13762 | else | |
| 81407a69 | 13763 | { |
| 25f23106 AM |
13764 | if (ifunc) |
| 13765 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 13766 | else | |
| 13767 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
13768 | |
| 13769 | /* Write the .got section contents for the sake | |
| 13770 | of prelink. */ | |
| e717da7e | 13771 | loc = got->contents + off; |
| 23fbd6fa JJ |
13772 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 13773 | loc); | |
| 81407a69 | 13774 | } |
| 81407a69 AM |
13775 | |
| 13776 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
13777 | { |
| 13778 | outrel.r_addend += relocation; | |
| 13779 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| e1918d23 | 13780 | outrel.r_addend -= htab->elf.tls_sec->vma; |
| e515b051 | 13781 | } |
| e717da7e AM |
13782 | loc = relgot->contents; |
| 13783 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
13784 | * sizeof (Elf64_External_Rela)); |
| 13785 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 13786 | } | |
| 13787 | ||
| ad8e1ba5 | 13788 | /* Init the .got section contents here if we're not |
| 81407a69 | 13789 | emitting a reloc. */ |
| d881513a | 13790 | else |
| 411e1bfb | 13791 | { |
| 4cc603a5 | 13792 | relocation += addend; |
| 7b609f53 AM |
13793 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 13794 | relocation = 1; | |
| 13795 | else if (tls_type != 0) | |
| 411e1bfb | 13796 | { |
| e1918d23 | 13797 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; |
| 7b609f53 | 13798 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 13799 | relocation += DTP_OFFSET - TP_OFFSET; |
| 5bd4f169 | 13800 | |
| 7b609f53 AM |
13801 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 13802 | { | |
| 13803 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 13804 | got->contents + off + 8); |
| 7b609f53 AM |
13805 | relocation = 1; |
| 13806 | } | |
| 411e1bfb | 13807 | } |
| 7b609f53 | 13808 | |
| 411e1bfb | 13809 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 13810 | got->contents + off); |
| 5bd4f169 AM |
13811 | } |
| 13812 | } | |
| 13813 | ||
| 65f38f15 AM |
13814 | if (off >= (bfd_vma) -2) |
| 13815 | abort (); | |
| 13816 | ||
| bf102f86 AM |
13817 | relocation = got->output_section->vma + got->output_offset + off; |
| 13818 | addend = -(TOCstart + htab->stub_group[input_section->id].toc_off); | |
| 5bd4f169 | 13819 | } |
| 65f38f15 AM |
13820 | break; |
| 13821 | ||
| 13822 | case R_PPC64_PLT16_HA: | |
| 13823 | case R_PPC64_PLT16_HI: | |
| 13824 | case R_PPC64_PLT16_LO: | |
| 13825 | case R_PPC64_PLT32: | |
| 13826 | case R_PPC64_PLT64: | |
| 13827 | /* Relocation is to the entry for this symbol in the | |
| 13828 | procedure linkage table. */ | |
| 13829 | ||
| 13830 | /* Resolve a PLT reloc against a local symbol directly, | |
| 13831 | without using the procedure linkage table. */ | |
| 13832 | if (h == NULL) | |
| 13833 | break; | |
| 13834 | ||
| 411e1bfb AM |
13835 | /* It's possible that we didn't make a PLT entry for this |
| 13836 | symbol. This happens when statically linking PIC code, | |
| 13837 | or when using -Bsymbolic. Go find a match if there is a | |
| 13838 | PLT entry. */ | |
| 4ce794b7 | 13839 | if (htab->plt != NULL) |
| 65f38f15 | 13840 | { |
| 411e1bfb | 13841 | struct plt_entry *ent; |
| 039b3fef | 13842 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
| 31c76678 | 13843 | if (ent->addend == orig_rel.r_addend |
| 411e1bfb AM |
13844 | && ent->plt.offset != (bfd_vma) -1) |
| 13845 | { | |
| 4ce794b7 AM |
13846 | relocation = (htab->plt->output_section->vma |
| 13847 | + htab->plt->output_offset | |
| 411e1bfb AM |
13848 | + ent->plt.offset); |
| 13849 | unresolved_reloc = FALSE; | |
| 13850 | } | |
| 65f38f15 | 13851 | } |
| 65f38f15 | 13852 | break; |
| 5bd4f169 | 13853 | |
| 0b13192e AM |
13854 | case R_PPC64_TOC: |
| 13855 | /* Relocation value is TOC base. */ | |
| 13856 | relocation = TOCstart; | |
| cf35638d | 13857 | if (r_symndx == STN_UNDEF) |
| 0b13192e | 13858 | relocation += htab->stub_group[input_section->id].toc_off; |
| 8517fae7 AM |
13859 | else if (unresolved_reloc) |
| 13860 | ; | |
| 13861 | else if (sec != NULL && sec->id <= htab->top_id) | |
| 0b13192e AM |
13862 | relocation += htab->stub_group[sec->id].toc_off; |
| 13863 | else | |
| 13864 | unresolved_reloc = TRUE; | |
| ab96bf03 | 13865 | goto dodyn; |
| 0b13192e | 13866 | |
| 5bd4f169 AM |
13867 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 13868 | which is the address of the start of the TOC plus 0x8000. | |
| 13869 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 13870 | in this order. */ | |
| 65f38f15 AM |
13871 | case R_PPC64_TOC16: |
| 13872 | case R_PPC64_TOC16_LO: | |
| 13873 | case R_PPC64_TOC16_HI: | |
| 13874 | case R_PPC64_TOC16_DS: | |
| 13875 | case R_PPC64_TOC16_LO_DS: | |
| 13876 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 13877 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
| 5bd4f169 AM |
13878 | break; |
| 13879 | ||
| 13880 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
13881 | case R_PPC64_SECTOFF: |
| 13882 | case R_PPC64_SECTOFF_LO: | |
| 13883 | case R_PPC64_SECTOFF_HI: | |
| 13884 | case R_PPC64_SECTOFF_DS: | |
| 13885 | case R_PPC64_SECTOFF_LO_DS: | |
| 13886 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 13887 | if (sec != NULL) |
| 65f38f15 | 13888 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
13889 | break; |
| 13890 | ||
| 25f23106 AM |
13891 | case R_PPC64_REL16: |
| 13892 | case R_PPC64_REL16_LO: | |
| 13893 | case R_PPC64_REL16_HI: | |
| 13894 | case R_PPC64_REL16_HA: | |
| 13895 | break; | |
| 13896 | ||
| 721956f4 AM |
13897 | case R_PPC64_REL14: |
| 13898 | case R_PPC64_REL14_BRNTAKEN: | |
| 13899 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
13900 | case R_PPC64_REL24: |
| 13901 | break; | |
| 13902 | ||
| 411e1bfb AM |
13903 | case R_PPC64_TPREL16: |
| 13904 | case R_PPC64_TPREL16_LO: | |
| 13905 | case R_PPC64_TPREL16_HI: | |
| 13906 | case R_PPC64_TPREL16_HA: | |
| 13907 | case R_PPC64_TPREL16_DS: | |
| 13908 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
13909 | case R_PPC64_TPREL16_HIGH: |
| 13910 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
13911 | case R_PPC64_TPREL16_HIGHER: |
| 13912 | case R_PPC64_TPREL16_HIGHERA: | |
| 13913 | case R_PPC64_TPREL16_HIGHEST: | |
| 13914 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
13915 | if (h != NULL |
| 13916 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 13917 | && h->elf.dynindx == -1) | |
| 13918 | { | |
| 13919 | /* Make this relocation against an undefined weak symbol | |
| 13920 | resolve to zero. This is really just a tweak, since | |
| 13921 | code using weak externs ought to check that they are | |
| 13922 | defined before using them. */ | |
| 13923 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 13924 | ||
| 13925 | insn = bfd_get_32 (output_bfd, p); | |
| 13926 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 13927 | if (insn != 0) | |
| 13928 | bfd_put_32 (output_bfd, insn, p); | |
| 13929 | break; | |
| 13930 | } | |
| e1918d23 | 13931 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
| 411e1bfb AM |
13932 | if (info->shared) |
| 13933 | /* The TPREL16 relocs shouldn't really be used in shared | |
| 13934 | libs as they will result in DT_TEXTREL being set, but | |
| 13935 | support them anyway. */ | |
| 13936 | goto dodyn; | |
| 13937 | break; | |
| 13938 | ||
| 13939 | case R_PPC64_DTPREL16: | |
| 13940 | case R_PPC64_DTPREL16_LO: | |
| 13941 | case R_PPC64_DTPREL16_HI: | |
| 13942 | case R_PPC64_DTPREL16_HA: | |
| 13943 | case R_PPC64_DTPREL16_DS: | |
| 13944 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
13945 | case R_PPC64_DTPREL16_HIGH: |
| 13946 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
13947 | case R_PPC64_DTPREL16_HIGHER: |
| 13948 | case R_PPC64_DTPREL16_HIGHERA: | |
| 13949 | case R_PPC64_DTPREL16_HIGHEST: | |
| 13950 | case R_PPC64_DTPREL16_HIGHESTA: | |
| e1918d23 | 13951 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
| 411e1bfb AM |
13952 | break; |
| 13953 | ||
| e515b051 AM |
13954 | case R_PPC64_DTPMOD64: |
| 13955 | relocation = 1; | |
| 13956 | addend = 0; | |
| 13957 | goto dodyn; | |
| 13958 | ||
| 411e1bfb | 13959 | case R_PPC64_TPREL64: |
| e1918d23 | 13960 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
| 411e1bfb AM |
13961 | goto dodyn; |
| 13962 | ||
| 13963 | case R_PPC64_DTPREL64: | |
| e1918d23 | 13964 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
| 411e1bfb AM |
13965 | /* Fall thru */ |
| 13966 | ||
| 65f38f15 AM |
13967 | /* Relocations that may need to be propagated if this is a |
| 13968 | dynamic object. */ | |
| 04c9666a | 13969 | case R_PPC64_REL30: |
| 65f38f15 AM |
13970 | case R_PPC64_REL32: |
| 13971 | case R_PPC64_REL64: | |
| 13972 | case R_PPC64_ADDR14: | |
| 13973 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 13974 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13975 | case R_PPC64_ADDR16: | |
| 13976 | case R_PPC64_ADDR16_DS: | |
| 13977 | case R_PPC64_ADDR16_HA: | |
| 13978 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
13979 | case R_PPC64_ADDR16_HIGH: |
| 13980 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
13981 | case R_PPC64_ADDR16_HIGHER: |
| 13982 | case R_PPC64_ADDR16_HIGHERA: | |
| 13983 | case R_PPC64_ADDR16_HIGHEST: | |
| 13984 | case R_PPC64_ADDR16_HIGHESTA: | |
| 13985 | case R_PPC64_ADDR16_LO: | |
| 13986 | case R_PPC64_ADDR16_LO_DS: | |
| 13987 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
13988 | case R_PPC64_ADDR32: |
| 13989 | case R_PPC64_ADDR64: | |
| 13990 | case R_PPC64_UADDR16: | |
| 13991 | case R_PPC64_UADDR32: | |
| 13992 | case R_PPC64_UADDR64: | |
| 411e1bfb | 13993 | dodyn: |
| 5d1634d7 | 13994 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
13995 | break; |
| 13996 | ||
| 41bd81ab AM |
13997 | if (NO_OPD_RELOCS && is_opd) |
| 13998 | break; | |
| 13999 | ||
| 65f38f15 | 14000 | if ((info->shared |
| 4e795f50 | 14001 | && (h == NULL |
| 039b3fef AM |
14002 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 14003 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 14004 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 14005 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 AM |
14006 | || (ELIMINATE_COPY_RELOCS |
| 14007 | && !info->shared | |
| 65f38f15 | 14008 | && h != NULL |
| 039b3fef | 14009 | && h->elf.dynindx != -1 |
| f5385ebf | 14010 | && !h->elf.non_got_ref |
| 25f23106 AM |
14011 | && !h->elf.def_regular) |
| 14012 | || (!info->shared | |
| 14013 | && (h != NULL | |
| 14014 | ? h->elf.type == STT_GNU_IFUNC | |
| 14015 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 14016 | { |
| b34976b6 | 14017 | bfd_boolean skip, relocate; |
| 65f38f15 | 14018 | asection *sreloc; |
| 1cf1f670 | 14019 | bfd_vma out_off; |
| 65f38f15 AM |
14020 | |
| 14021 | /* When generating a dynamic object, these relocations | |
| 14022 | are copied into the output file to be resolved at run | |
| 14023 | time. */ | |
| 14024 | ||
| b34976b6 AM |
14025 | skip = FALSE; |
| 14026 | relocate = FALSE; | |
| 65f38f15 | 14027 | |
| 1cf1f670 AM |
14028 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14029 | input_section, rel->r_offset); | |
| 14030 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14031 | skip = TRUE; |
| 1cf1f670 | 14032 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14033 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14034 | out_off += (input_section->output_section->vma |
| 14035 | + input_section->output_offset); | |
| 14036 | outrel.r_offset = out_off; | |
| 411e1bfb | 14037 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14038 | |
| 1cf1f670 AM |
14039 | /* Optimize unaligned reloc use. */ |
| 14040 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14041 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14042 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14043 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14044 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14045 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14046 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14047 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14048 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14049 | ||
| 65f38f15 | 14050 | if (skip) |
| 0bb2d96a | 14051 | memset (&outrel, 0, sizeof outrel); |
| 726d3ab0 | 14052 | else if (!SYMBOL_CALLS_LOCAL (info, &h->elf) |
| 0b13192e AM |
14053 | && !is_opd |
| 14054 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14055 | { |
| 14056 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14057 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14058 | } | |
| 65f38f15 AM |
14059 | else |
| 14060 | { | |
| 41bd81ab AM |
14061 | /* This symbol is local, or marked to become local, |
| 14062 | or this is an opd section reloc which must point | |
| 14063 | at a local function. */ | |
| 65f38f15 | 14064 | outrel.r_addend += relocation; |
| e86ce104 | 14065 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14066 | { |
| 3fad3c7c | 14067 | if (is_opd && h != NULL) |
| afbe61cf AM |
14068 | { |
| 14069 | /* Lie about opd entries. This case occurs | |
| 14070 | when building shared libraries and we | |
| 14071 | reference a function in another shared | |
| 3fad3c7c AM |
14072 | lib. The same thing happens for a weak |
| 14073 | definition in an application that's | |
| 14074 | overridden by a strong definition in a | |
| 14075 | shared lib. (I believe this is a generic | |
| 14076 | bug in binutils handling of weak syms.) | |
| 14077 | In these cases we won't use the opd | |
| 1e2f5b6e | 14078 | entry in this lib. */ |
| b34976b6 | 14079 | unresolved_reloc = FALSE; |
| afbe61cf | 14080 | } |
| 25f23106 AM |
14081 | if (!is_opd |
| 14082 | && r_type == R_PPC64_ADDR64 | |
| 14083 | && (h != NULL | |
| 14084 | ? h->elf.type == STT_GNU_IFUNC | |
| 14085 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14086 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14087 | else | |
| 14088 | { | |
| 14089 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14090 | |
| 25f23106 AM |
14091 | /* We need to relocate .opd contents for ld.so. |
| 14092 | Prelink also wants simple and consistent rules | |
| 14093 | for relocs. This make all RELATIVE relocs have | |
| 14094 | *r_offset equal to r_addend. */ | |
| 14095 | relocate = TRUE; | |
| 14096 | } | |
| 65f38f15 AM |
14097 | } |
| 14098 | else | |
| 14099 | { | |
| 14100 | long indx = 0; | |
| 14101 | ||
| 25f23106 AM |
14102 | if (h != NULL |
| 14103 | ? h->elf.type == STT_GNU_IFUNC | |
| 14104 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14105 | { | |
| 25f53a85 | 14106 | info->callbacks->einfo |
| bc30df16 AM |
14107 | (_("%P: %H: %s for indirect " |
| 14108 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14109 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14110 | ppc64_elf_howto_table[r_type]->name, |
| 14111 | sym_name); | |
| 14112 | ret = FALSE; | |
| 14113 | } | |
| cf35638d | 14114 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14115 | ; |
| 14116 | else if (sec == NULL || sec->owner == NULL) | |
| 14117 | { | |
| 14118 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14119 | return FALSE; |
| 65f38f15 AM |
14120 | } |
| 14121 | else | |
| 14122 | { | |
| 14123 | asection *osec; | |
| 14124 | ||
| 14125 | osec = sec->output_section; | |
| 14126 | indx = elf_section_data (osec)->dynindx; | |
| 14127 | ||
| 74541ad4 AM |
14128 | if (indx == 0) |
| 14129 | { | |
| 14130 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14131 | && htab->elf.data_index_section != NULL) | |
| 14132 | osec = htab->elf.data_index_section; | |
| 14133 | else | |
| 14134 | osec = htab->elf.text_index_section; | |
| 14135 | indx = elf_section_data (osec)->dynindx; | |
| 14136 | } | |
| 14137 | BFD_ASSERT (indx != 0); | |
| 14138 | ||
| 65f38f15 AM |
14139 | /* We are turning this relocation into one |
| 14140 | against a section symbol, so subtract out | |
| 14141 | the output section's address but not the | |
| 14142 | offset of the input section in the output | |
| 14143 | section. */ | |
| 14144 | outrel.r_addend -= osec->vma; | |
| 14145 | } | |
| 14146 | ||
| 14147 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14148 | } | |
| 14149 | } | |
| 14150 | ||
| 14151 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14152 | if (h != NULL |
| 14153 | ? h->elf.type == STT_GNU_IFUNC | |
| 14154 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 25f23106 | 14155 | sreloc = htab->reliplt; |
| 65f38f15 AM |
14156 | if (sreloc == NULL) |
| 14157 | abort (); | |
| 14158 | ||
| dfbb6ac9 AM |
14159 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14160 | >= sreloc->size) | |
| 14161 | abort (); | |
| 947216bf AM |
14162 | loc = sreloc->contents; |
| 14163 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14164 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14165 | ||
| 14166 | /* If this reloc is against an external symbol, it will | |
| 14167 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14168 | anything now. However, for the sake of prelink ensure |
| 14169 | that the section contents are a known value. */ | |
| 65f38f15 | 14170 | if (! relocate) |
| 81407a69 AM |
14171 | { |
| 14172 | unresolved_reloc = FALSE; | |
| 14173 | /* The value chosen here is quite arbitrary as ld.so | |
| 14174 | ignores section contents except for the special | |
| 14175 | case of .opd where the contents might be accessed | |
| 14176 | before relocation. Choose zero, as that won't | |
| 14177 | cause reloc overflow. */ | |
| 14178 | relocation = 0; | |
| 14179 | addend = 0; | |
| 14180 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14181 | to improve backward compatibility with older | |
| 14182 | versions of ld. */ | |
| 14183 | if (r_type == R_PPC64_ADDR64) | |
| 14184 | addend = outrel.r_addend; | |
| 14185 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14186 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14187 | addend = (input_section->output_section->vma |
| 14188 | + input_section->output_offset | |
| 14189 | + rel->r_offset); | |
| 81407a69 | 14190 | } |
| 65f38f15 | 14191 | } |
| 5bd4f169 AM |
14192 | break; |
| 14193 | ||
| 65f38f15 AM |
14194 | case R_PPC64_COPY: |
| 14195 | case R_PPC64_GLOB_DAT: | |
| 14196 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14197 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14198 | case R_PPC64_RELATIVE: |
| 14199 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14200 | files. */ | |
| ae9a127f | 14201 | /* Fall through. */ |
| 65f38f15 AM |
14202 | |
| 14203 | case R_PPC64_PLTGOT16: | |
| 14204 | case R_PPC64_PLTGOT16_DS: | |
| 14205 | case R_PPC64_PLTGOT16_HA: | |
| 14206 | case R_PPC64_PLTGOT16_HI: | |
| 14207 | case R_PPC64_PLTGOT16_LO: | |
| 14208 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14209 | case R_PPC64_PLTREL32: | |
| 14210 | case R_PPC64_PLTREL64: | |
| 14211 | /* These ones haven't been implemented yet. */ | |
| 14212 | ||
| 25f53a85 | 14213 | info->callbacks->einfo |
| bc30df16 | 14214 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14215 | input_bfd, |
| 4ce794b7 | 14216 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14217 | |
| 14218 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14219 | ret = FALSE; |
| 5bd4f169 | 14220 | continue; |
| 65f38f15 | 14221 | } |
| 5bd4f169 | 14222 | |
| 67f0cbdb AM |
14223 | /* Multi-instruction sequences that access the TOC can be |
| 14224 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14225 | to nop; addi rb,r2,x; */ | |
| 14226 | switch (r_type) | |
| 14227 | { | |
| 14228 | default: | |
| 14229 | break; | |
| 14230 | ||
| 14231 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14232 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14233 | case R_PPC64_GOT_TPREL16_HI: | |
| 14234 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14235 | case R_PPC64_GOT16_HI: | |
| 14236 | case R_PPC64_TOC16_HI: | |
| 14237 | /* These relocs would only be useful if building up an | |
| 14238 | offset to later add to r2, perhaps in an indexed | |
| 14239 | addressing mode instruction. Don't try to optimize. | |
| 14240 | Unfortunately, the possibility of someone building up an | |
| 14241 | offset like this or even with the HA relocs, means that | |
| 14242 | we need to check the high insn when optimizing the low | |
| 14243 | insn. */ | |
| 14244 | break; | |
| 14245 | ||
| 14246 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14247 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14248 | case R_PPC64_GOT_TPREL16_HA: | |
| 14249 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14250 | case R_PPC64_GOT16_HA: | |
| 14251 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14252 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14253 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14254 | { |
| 14255 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14256 | bfd_put_32 (input_bfd, NOP, p); | |
| 14257 | } | |
| 67f0cbdb AM |
14258 | break; |
| 14259 | ||
| 14260 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14261 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14262 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14263 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14264 | case R_PPC64_GOT16_LO: | |
| 14265 | case R_PPC64_GOT16_LO_DS: | |
| 14266 | case R_PPC64_TOC16_LO: | |
| 14267 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14268 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14269 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14270 | { |
| 14271 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14272 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14273 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14274 | { | |
| 14275 | /* Transform addic to addi when we change reg. */ | |
| 14276 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14277 | insn |= (14u << 26) | (2 << 16); | |
| 14278 | } | |
| 14279 | else | |
| 67f0cbdb | 14280 | { |
| 98528052 AM |
14281 | insn &= ~(0x1f << 16); |
| 14282 | insn |= 2 << 16; | |
| 67f0cbdb | 14283 | } |
| 560c8763 | 14284 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14285 | } |
| 14286 | break; | |
| 14287 | } | |
| 14288 | ||
| 65f38f15 AM |
14289 | /* Do any further special processing. */ |
| 14290 | switch (r_type) | |
| 14291 | { | |
| 14292 | default: | |
| 14293 | break; | |
| 14294 | ||
| 25f23106 | 14295 | case R_PPC64_REL16_HA: |
| f9c6b907 AM |
14296 | case R_PPC64_ADDR16_HA: |
| 14297 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14298 | case R_PPC64_ADDR16_HIGHERA: |
| 14299 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14300 | case R_PPC64_TOC16_HA: |
| 14301 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14302 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14303 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14304 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14305 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14306 | case R_PPC64_DTPREL16_HA: |
| 14307 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14308 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14309 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14310 | /* It's just possible that this symbol is a weak symbol |
| 14311 | that's not actually defined anywhere. In that case, | |
| 14312 | 'sec' would be NULL, and we should leave the symbol | |
| 14313 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14314 | if (sec == NULL) |
| 14315 | break; | |
| 14316 | /* Fall thru */ | |
| 14317 | ||
| 14318 | case R_PPC64_GOT16_HA: | |
| 14319 | case R_PPC64_PLTGOT16_HA: | |
| 14320 | case R_PPC64_PLT16_HA: | |
| 14321 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14322 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14323 | case R_PPC64_GOT_TPREL16_HA: | |
| 14324 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14325 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 14326 | Bits 0:15 are not used. */ | |
| 14327 | addend += 0x8000; | |
| 65f38f15 AM |
14328 | break; |
| 14329 | ||
| 14330 | case R_PPC64_ADDR16_DS: | |
| 14331 | case R_PPC64_ADDR16_LO_DS: | |
| 14332 | case R_PPC64_GOT16_DS: | |
| 14333 | case R_PPC64_GOT16_LO_DS: | |
| 14334 | case R_PPC64_PLT16_LO_DS: | |
| 14335 | case R_PPC64_SECTOFF_DS: | |
| 14336 | case R_PPC64_SECTOFF_LO_DS: | |
| 14337 | case R_PPC64_TOC16_DS: | |
| 14338 | case R_PPC64_TOC16_LO_DS: | |
| 14339 | case R_PPC64_PLTGOT16_DS: | |
| 14340 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
14341 | case R_PPC64_GOT_TPREL16_DS: |
| 14342 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14343 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14344 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14345 | case R_PPC64_TPREL16_DS: | |
| 14346 | case R_PPC64_TPREL16_LO_DS: | |
| 14347 | case R_PPC64_DTPREL16_DS: | |
| 14348 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
14349 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 14350 | mask = 3; | |
| 14351 | /* If this reloc is against an lq insn, then the value must be | |
| 14352 | a multiple of 16. This is somewhat of a hack, but the | |
| 14353 | "correct" way to do this by defining _DQ forms of all the | |
| 14354 | _DS relocs bloats all reloc switches in this file. It | |
| 14355 | doesn't seem to make much sense to use any of these relocs | |
| 14356 | in data, so testing the insn should be safe. */ | |
| 494dac0c | 14357 | if ((insn & (0x3f << 26)) == (56u << 26)) |
| adadcc0c AM |
14358 | mask = 15; |
| 14359 | if (((relocation + addend) & mask) != 0) | |
| 65f38f15 | 14360 | { |
| 25f53a85 | 14361 | info->callbacks->einfo |
| 8de848d8 | 14362 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 14363 | input_bfd, input_section, rel->r_offset, |
| 4ce794b7 | 14364 | ppc64_elf_howto_table[r_type]->name, |
| adadcc0c | 14365 | mask + 1); |
| 65f38f15 | 14366 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14367 | ret = FALSE; |
| 65f38f15 AM |
14368 | continue; |
| 14369 | } | |
| 14370 | break; | |
| 5bd4f169 AM |
14371 | } |
| 14372 | ||
| 239e1f3a AM |
14373 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 14374 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 14375 | not process them. */ | |
| 65f38f15 | 14376 | if (unresolved_reloc |
| 239e1f3a | 14377 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
14378 | && h->elf.def_dynamic) |
| 14379 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 14380 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 14381 | { |
| 25f53a85 | 14382 | info->callbacks->einfo |
| bc30df16 | 14383 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 14384 | input_bfd, input_section, rel->r_offset, |
| 7b609f53 | 14385 | ppc64_elf_howto_table[(int) r_type]->name, |
| 039b3fef | 14386 | h->elf.root.root.string); |
| b34976b6 | 14387 | ret = FALSE; |
| 9c07fe7c | 14388 | } |
| 5bd4f169 | 14389 | |
| 65f38f15 | 14390 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
| 5bd4f169 AM |
14391 | input_bfd, |
| 14392 | input_section, | |
| 14393 | contents, | |
| 411e1bfb | 14394 | rel->r_offset, |
| 5bd4f169 AM |
14395 | relocation, |
| 14396 | addend); | |
| 14397 | ||
| ef60b7ff | 14398 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 14399 | { |
| bc30df16 AM |
14400 | char *more_info = NULL; |
| 14401 | const char *reloc_name = ppc64_elf_howto_table[r_type]->name; | |
| 14402 | ||
| 14403 | if (reloc_dest != DEST_NORMAL) | |
| 14404 | { | |
| 14405 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 14406 | if (more_info != NULL) | |
| 14407 | { | |
| 14408 | strcpy (more_info, reloc_name); | |
| 14409 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 14410 | ? " (OPD)" : " (stub)")); | |
| 14411 | reloc_name = more_info; | |
| 14412 | } | |
| 14413 | } | |
| 14414 | ||
| cd27b276 | 14415 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 14416 | { |
| cd27b276 AM |
14417 | if (warned) |
| 14418 | continue; | |
| 14419 | if (h != NULL | |
| 039b3fef | 14420 | && h->elf.root.type == bfd_link_hash_undefweak |
| 4ce794b7 | 14421 | && ppc64_elf_howto_table[r_type]->pc_relative) |
| 5bd4f169 AM |
14422 | { |
| 14423 | /* Assume this is a call protected by other code that | |
| 14424 | detects the symbol is undefined. If this is the case, | |
| 14425 | we can safely ignore the overflow. If not, the | |
| 14426 | program is hosed anyway, and a little warning isn't | |
| 14427 | going to help. */ | |
| 14428 | ||
| 14429 | continue; | |
| 14430 | } | |
| 14431 | ||
| ef60b7ff | 14432 | if (!((*info->callbacks->reloc_overflow) |
| bc30df16 AM |
14433 | (info, &h->elf.root, sym_name, |
| 14434 | reloc_name, orig_rel.r_addend, | |
| 14435 | input_bfd, input_section, rel->r_offset))) | |
| b34976b6 | 14436 | return FALSE; |
| ef60b7ff AM |
14437 | } |
| 14438 | else | |
| 14439 | { | |
| 25f53a85 | 14440 | info->callbacks->einfo |
| bc30df16 | 14441 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 14442 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 14443 | reloc_name, sym_name, (int) r); |
| b34976b6 | 14444 | ret = FALSE; |
| ef60b7ff | 14445 | } |
| bc30df16 AM |
14446 | if (more_info != NULL) |
| 14447 | free (more_info); | |
| 5bd4f169 | 14448 | } |
| 5bd4f169 AM |
14449 | } |
| 14450 | ||
| 645ea6a9 AM |
14451 | /* If we're emitting relocations, then shortly after this function |
| 14452 | returns, reloc offsets and addends for this section will be | |
| 14453 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
14454 | file rather than the input. Save a copy of the relocs for |
| 14455 | opd_entry_value. */ | |
| 4cc603a5 | 14456 | if (is_opd && (info->emitrelocations || info->relocatable)) |
| 8860955f AM |
14457 | { |
| 14458 | bfd_size_type amt; | |
| 14459 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 14460 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
14461 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 14462 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
14463 | if (rel == NULL) |
| 14464 | return FALSE; | |
| 14465 | memcpy (rel, relocs, amt); | |
| 14466 | } | |
| 5bd4f169 AM |
14467 | return ret; |
| 14468 | } | |
| 14469 | ||
| 754021d0 AM |
14470 | /* Adjust the value of any local symbols in opd sections. */ |
| 14471 | ||
| 6e0b88f1 | 14472 | static int |
| 754021d0 AM |
14473 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 14474 | const char *name ATTRIBUTE_UNUSED, | |
| 14475 | Elf_Internal_Sym *elfsym, | |
| 14476 | asection *input_sec, | |
| 14477 | struct elf_link_hash_entry *h) | |
| 14478 | { | |
| 74f0fb50 AM |
14479 | struct _opd_sec_data *opd; |
| 14480 | long adjust; | |
| 754021d0 AM |
14481 | bfd_vma value; |
| 14482 | ||
| 4025353c | 14483 | if (h != NULL) |
| 6e0b88f1 | 14484 | return 1; |
| 4025353c | 14485 | |
| 74f0fb50 AM |
14486 | opd = get_opd_info (input_sec); |
| 14487 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 14488 | return 1; |
| 754021d0 AM |
14489 | |
| 14490 | value = elfsym->st_value - input_sec->output_offset; | |
| 14491 | if (!info->relocatable) | |
| 14492 | value -= input_sec->output_section->vma; | |
| 14493 | ||
| 74f0fb50 | 14494 | adjust = opd->adjust[value / 8]; |
| 4025353c | 14495 | if (adjust == -1) |
| 6e0b88f1 AM |
14496 | return 2; |
| 14497 | ||
| 14498 | elfsym->st_value += adjust; | |
| 14499 | return 1; | |
| 754021d0 AM |
14500 | } |
| 14501 | ||
| 5bd4f169 AM |
14502 | /* Finish up dynamic symbol handling. We set the contents of various |
| 14503 | dynamic sections here. */ | |
| 14504 | ||
| b34976b6 | 14505 | static bfd_boolean |
| 4ce794b7 AM |
14506 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 14507 | struct bfd_link_info *info, | |
| 14508 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 14509 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 14510 | { |
| 65f38f15 | 14511 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
14512 | struct plt_entry *ent; |
| 14513 | Elf_Internal_Rela rela; | |
| 14514 | bfd_byte *loc; | |
| 5bd4f169 | 14515 | |
| 65f38f15 | 14516 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
14517 | if (htab == NULL) |
| 14518 | return FALSE; | |
| 5bd4f169 | 14519 | |
| 8387904d AM |
14520 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 14521 | if (ent->plt.offset != (bfd_vma) -1) | |
| 14522 | { | |
| 14523 | /* This symbol has an entry in the procedure linkage | |
| 14524 | table. Set it up. */ | |
| e054468f AM |
14525 | if (!htab->elf.dynamic_sections_created |
| 14526 | || h->dynindx == -1) | |
| 14527 | { | |
| 14528 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 14529 | && h->def_regular | |
| 14530 | && (h->root.type == bfd_link_hash_defined | |
| 14531 | || h->root.type == bfd_link_hash_defweak)); | |
| 25f23106 AM |
14532 | rela.r_offset = (htab->iplt->output_section->vma |
| 14533 | + htab->iplt->output_offset | |
| 14534 | + ent->plt.offset); | |
| ee67d69a AM |
14535 | if (htab->opd_abi) |
| 14536 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 14537 | else | |
| 14538 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
14539 | rela.r_addend = (h->root.u.def.value |
| 14540 | + h->root.u.def.section->output_offset | |
| 14541 | + h->root.u.def.section->output_section->vma | |
| 14542 | + ent->addend); | |
| 25f23106 AM |
14543 | loc = (htab->reliplt->contents |
| 14544 | + (htab->reliplt->reloc_count++ | |
| 14545 | * sizeof (Elf64_External_Rela))); | |
| e054468f AM |
14546 | } |
| 14547 | else | |
| 14548 | { | |
| 25f23106 AM |
14549 | rela.r_offset = (htab->plt->output_section->vma |
| 14550 | + htab->plt->output_offset | |
| 14551 | + ent->plt.offset); | |
| e054468f AM |
14552 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 14553 | rela.r_addend = ent->addend; | |
| 25f23106 | 14554 | loc = (htab->relplt->contents |
| b9e5796b AM |
14555 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 14556 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 14557 | } |
| 8387904d AM |
14558 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 14559 | } | |
| 5bd4f169 | 14560 | |
| f5385ebf | 14561 | if (h->needs_copy) |
| 5bd4f169 | 14562 | { |
| 65f38f15 | 14563 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 14564 | |
| 65f38f15 AM |
14565 | if (h->dynindx == -1 |
| 14566 | || (h->root.type != bfd_link_hash_defined | |
| 14567 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 14568 | || htab->relbss == NULL) |
| 65f38f15 | 14569 | abort (); |
| 5bd4f169 AM |
14570 | |
| 14571 | rela.r_offset = (h->root.u.def.value | |
| 14572 | + h->root.u.def.section->output_section->vma | |
| 14573 | + h->root.u.def.section->output_offset); | |
| 14574 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 14575 | rela.r_addend = 0; | |
| 4ce794b7 AM |
14576 | loc = htab->relbss->contents; |
| 14577 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 14578 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
14579 | } |
| 14580 | ||
| b34976b6 | 14581 | return TRUE; |
| 5bd4f169 AM |
14582 | } |
| 14583 | ||
| 65f38f15 AM |
14584 | /* Used to decide how to sort relocs in an optimal manner for the |
| 14585 | dynamic linker, before writing them out. */ | |
| 14586 | ||
| 14587 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
14588 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 14589 | const asection *rel_sec, | |
| 14590 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 14591 | { |
| 04c9666a | 14592 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
14593 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 14594 | ||
| 14595 | if (rel_sec == htab->reliplt) | |
| 14596 | return reloc_class_ifunc; | |
| a33d1f77 | 14597 | |
| 4ce794b7 | 14598 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 14599 | switch (r_type) |
| 65f38f15 AM |
14600 | { |
| 14601 | case R_PPC64_RELATIVE: | |
| 14602 | return reloc_class_relative; | |
| 14603 | case R_PPC64_JMP_SLOT: | |
| 14604 | return reloc_class_plt; | |
| 14605 | case R_PPC64_COPY: | |
| 14606 | return reloc_class_copy; | |
| 14607 | default: | |
| 14608 | return reloc_class_normal; | |
| 14609 | } | |
| 14610 | } | |
| 14611 | ||
| 5bd4f169 AM |
14612 | /* Finish up the dynamic sections. */ |
| 14613 | ||
| b34976b6 | 14614 | static bfd_boolean |
| 4ce794b7 AM |
14615 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 14616 | struct bfd_link_info *info) | |
| 5bd4f169 | 14617 | { |
| 65f38f15 AM |
14618 | struct ppc_link_hash_table *htab; |
| 14619 | bfd *dynobj; | |
| 5bd4f169 | 14620 | asection *sdyn; |
| 5bd4f169 | 14621 | |
| 65f38f15 | 14622 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
14623 | if (htab == NULL) |
| 14624 | return FALSE; | |
| 14625 | ||
| 65f38f15 | 14626 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 14627 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 14628 | |
| 65f38f15 | 14629 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 14630 | { |
| 5bd4f169 AM |
14631 | Elf64_External_Dyn *dyncon, *dynconend; |
| 14632 | ||
| 4ce794b7 | 14633 | if (sdyn == NULL || htab->got == NULL) |
| 65f38f15 | 14634 | abort (); |
| 5bd4f169 AM |
14635 | |
| 14636 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 14637 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
14638 | for (; dyncon < dynconend; dyncon++) |
| 14639 | { | |
| 14640 | Elf_Internal_Dyn dyn; | |
| 19397422 | 14641 | asection *s; |
| 5bd4f169 AM |
14642 | |
| 14643 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 14644 | ||
| 14645 | switch (dyn.d_tag) | |
| 14646 | { | |
| 65f38f15 AM |
14647 | default: |
| 14648 | continue; | |
| 5bd4f169 | 14649 | |
| 5d1634d7 | 14650 | case DT_PPC64_GLINK: |
| 4ce794b7 | 14651 | s = htab->glink; |
| 6348e046 | 14652 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
14653 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 14654 | of glink rather than the first entry point, which is | |
| 14655 | what ld.so needs, and now have a bigger stub to | |
| 14656 | support automatic multiple TOCs. */ | |
| b9e5796b | 14657 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
14658 | break; |
| 14659 | ||
| 19397422 AM |
14660 | case DT_PPC64_OPD: |
| 14661 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
14662 | if (s == NULL) |
| 14663 | continue; | |
| 14664 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
14665 | break; |
| 14666 | ||
| e8910a83 AM |
14667 | case DT_PPC64_OPT: |
| 14668 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 14669 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 14670 | break; | |
| 14671 | ||
| 19397422 AM |
14672 | case DT_PPC64_OPDSZ: |
| 14673 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
14674 | if (s == NULL) |
| 14675 | continue; | |
| eea6121a | 14676 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
14677 | break; |
| 14678 | ||
| 65f38f15 | 14679 | case DT_PLTGOT: |
| 4ce794b7 | 14680 | s = htab->plt; |
| 6348e046 | 14681 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
14682 | break; |
| 14683 | ||
| 14684 | case DT_JMPREL: | |
| 4ce794b7 | 14685 | s = htab->relplt; |
| 6348e046 | 14686 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 14687 | break; |
| 5bd4f169 | 14688 | |
| 65f38f15 | 14689 | case DT_PLTRELSZ: |
| eea6121a | 14690 | dyn.d_un.d_val = htab->relplt->size; |
| 5d1634d7 AM |
14691 | break; |
| 14692 | ||
| 14693 | case DT_RELASZ: | |
| 14694 | /* Don't count procedure linkage table relocs in the | |
| 14695 | overall reloc count. */ | |
| 4ce794b7 | 14696 | s = htab->relplt; |
| 6348e046 AM |
14697 | if (s == NULL) |
| 14698 | continue; | |
| eea6121a | 14699 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
14700 | break; |
| 14701 | ||
| 14702 | case DT_RELA: | |
| 14703 | /* We may not be using the standard ELF linker script. | |
| 14704 | If .rela.plt is the first .rela section, we adjust | |
| 14705 | DT_RELA to not include it. */ | |
| 4ce794b7 | 14706 | s = htab->relplt; |
| 6348e046 AM |
14707 | if (s == NULL) |
| 14708 | continue; | |
| 14709 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 14710 | continue; | |
| eea6121a | 14711 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 14712 | break; |
| 5bd4f169 | 14713 | } |
| 5bd4f169 | 14714 | |
| 65f38f15 | 14715 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 14716 | } |
| 5bd4f169 AM |
14717 | } |
| 14718 | ||
| eea6121a | 14719 | if (htab->got != NULL && htab->got->size != 0) |
| 5d1634d7 AM |
14720 | { |
| 14721 | /* Fill in the first entry in the global offset table. | |
| 14722 | We use it to hold the link-time TOCbase. */ | |
| 14723 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 14724 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 4ce794b7 | 14725 | htab->got->contents); |
| 5d1634d7 AM |
14726 | |
| 14727 | /* Set .got entry size. */ | |
| 4ce794b7 | 14728 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
14729 | } |
| 14730 | ||
| eea6121a | 14731 | if (htab->plt != NULL && htab->plt->size != 0) |
| 5d1634d7 AM |
14732 | { |
| 14733 | /* Set .plt entry size. */ | |
| 4ce794b7 | 14734 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 14735 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
14736 | } |
| 14737 | ||
| 84f5d08e AM |
14738 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 14739 | brlt ourselves if emitrelocations. */ | |
| 14740 | if (htab->brlt != NULL | |
| 14741 | && htab->brlt->reloc_count != 0 | |
| 14742 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 14743 | htab->brlt, | |
| d4730f92 | 14744 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
14745 | elf_section_data (htab->brlt)->relocs, |
| 14746 | NULL)) | |
| 14747 | return FALSE; | |
| 14748 | ||
| 176a0d42 AM |
14749 | if (htab->glink != NULL |
| 14750 | && htab->glink->reloc_count != 0 | |
| 14751 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 14752 | htab->glink, | |
| d4730f92 | 14753 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
14754 | elf_section_data (htab->glink)->relocs, |
| 14755 | NULL)) | |
| 14756 | return FALSE; | |
| 14757 | ||
| 58d180e8 AM |
14758 | |
| 14759 | if (htab->glink_eh_frame != NULL | |
| dbaa2011 | 14760 | && htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME |
| 58d180e8 AM |
14761 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, |
| 14762 | htab->glink_eh_frame, | |
| 14763 | htab->glink_eh_frame->contents)) | |
| 14764 | return FALSE; | |
| 14765 | ||
| e717da7e | 14766 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
14767 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 14768 | bfd. */ | |
| e717da7e AM |
14769 | while ((dynobj = dynobj->link_next) != NULL) |
| 14770 | { | |
| 14771 | asection *s; | |
| 7b53ace3 | 14772 | |
| 0c8d6e5c | 14773 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
14774 | continue; |
| 14775 | ||
| e717da7e AM |
14776 | s = ppc64_elf_tdata (dynobj)->got; |
| 14777 | if (s != NULL | |
| eea6121a | 14778 | && s->size != 0 |
| e717da7e AM |
14779 | && s->output_section != bfd_abs_section_ptr |
| 14780 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 14781 | s->contents, s->output_offset, | |
| eea6121a | 14782 | s->size)) |
| e717da7e AM |
14783 | return FALSE; |
| 14784 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 14785 | if (s != NULL | |
| eea6121a | 14786 | && s->size != 0 |
| e717da7e AM |
14787 | && s->output_section != bfd_abs_section_ptr |
| 14788 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 14789 | s->contents, s->output_offset, | |
| eea6121a | 14790 | s->size)) |
| e717da7e AM |
14791 | return FALSE; |
| 14792 | } | |
| f6c52c13 | 14793 | |
| b34976b6 | 14794 | return TRUE; |
| 5bd4f169 AM |
14795 | } |
| 14796 | ||
| 5bd4f169 | 14797 | #include "elf64-target.h" |
| 7b8e7dad AM |
14798 | |
| 14799 | /* FreeBSD support */ | |
| 14800 | ||
| 14801 | #undef TARGET_LITTLE_SYM | |
| 14802 | #undef TARGET_LITTLE_NAME | |
| 14803 | ||
| 14804 | #undef TARGET_BIG_SYM | |
| 14805 | #define TARGET_BIG_SYM bfd_elf64_powerpc_freebsd_vec | |
| 14806 | #undef TARGET_BIG_NAME | |
| 14807 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 14808 | ||
| 14809 | #undef ELF_OSABI | |
| 14810 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 14811 | ||
| 14812 | #undef elf64_bed | |
| 14813 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 14814 | ||
| 14815 | #include "elf64-target.h" | |
| 14816 |