1/* x86_64 ELF support for BFD. 2 Copyright (C) 2000-2024 Free Software Foundation, Inc. 3 Contributed by Jan Hubicka <jh@suse.cz> 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software Foundation, 19 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 20 21#ifndef _ELF_X86_64_H 22#define _ELF_X86_64_H 23 24#include "elf/reloc-macros.h" 25 26START_RELOC_NUMBERS (elf_x86_64_reloc_type) 27 RELOC_NUMBER (R_X86_64_NONE, 0) /* No reloc */ 28 RELOC_NUMBER (R_X86_64_64, 1) /* Direct 64 bit */ 29 RELOC_NUMBER (R_X86_64_PC32, 2) /* PC relative 32 bit signed */ 30 RELOC_NUMBER (R_X86_64_GOT32, 3) /* 32 bit GOT entry */ 31 RELOC_NUMBER (R_X86_64_PLT32, 4) /* 32 bit PLT address */ 32 RELOC_NUMBER (R_X86_64_COPY, 5) /* Copy symbol at runtime */ 33 RELOC_NUMBER (R_X86_64_GLOB_DAT, 6) /* Create GOT entry */ 34 RELOC_NUMBER (R_X86_64_JUMP_SLOT,7) /* Create PLT entry */ 35 RELOC_NUMBER (R_X86_64_RELATIVE, 8) /* Adjust by program base */ 36 RELOC_NUMBER (R_X86_64_GOTPCREL, 9) /* 32 bit signed pc relative 37 offset to GOT entry */ 38 RELOC_NUMBER (R_X86_64_32, 10) /* Direct 32 bit zero extended */ 39 RELOC_NUMBER (R_X86_64_32S, 11) /* Direct 32 bit sign extended */ 40 RELOC_NUMBER (R_X86_64_16, 12) /* Direct 16 bit zero extended */ 41 RELOC_NUMBER (R_X86_64_PC16, 13) /* 16 bit sign extended pc relative*/ 42 RELOC_NUMBER (R_X86_64_8, 14) /* Direct 8 bit sign extended */ 43 RELOC_NUMBER (R_X86_64_PC8, 15) /* 8 bit sign extended pc relative*/ 44 RELOC_NUMBER (R_X86_64_DTPMOD64, 16) /* ID of module containing symbol */ 45 RELOC_NUMBER (R_X86_64_DTPOFF64, 17) /* Offset in TLS block */ 46 RELOC_NUMBER (R_X86_64_TPOFF64, 18) /* Offset in initial TLS block */ 47 RELOC_NUMBER (R_X86_64_TLSGD, 19) /* PC relative offset to GD GOT block */ 48 RELOC_NUMBER (R_X86_64_TLSLD, 20) /* PC relative offset to LD GOT block */ 49 RELOC_NUMBER (R_X86_64_DTPOFF32, 21) /* Offset in TLS block */ 50 RELOC_NUMBER (R_X86_64_GOTTPOFF, 22) /* PC relative offset to IE GOT entry */ 51 RELOC_NUMBER (R_X86_64_TPOFF32, 23) /* Offset in initial TLS block */ 52 RELOC_NUMBER (R_X86_64_PC64, 24) /* PC relative 64 bit */ 53 RELOC_NUMBER (R_X86_64_GOTOFF64, 25) /* 64 bit offset to GOT */ 54 RELOC_NUMBER (R_X86_64_GOTPC32, 26) /* 32 bit signed pc relative 55 offset to GOT */ 56 RELOC_NUMBER (R_X86_64_GOT64, 27) /* 64 bit GOT entry offset */ 57 RELOC_NUMBER (R_X86_64_GOTPCREL64, 28) /* 64 bit signed pc relative 58 offset to GOT entry */ 59 RELOC_NUMBER (R_X86_64_GOTPC64, 29) /* 64 bit signed pc relative 60 offset to GOT */ 61 RELOC_NUMBER (R_X86_64_GOTPLT64, 30) /* Obsolete. The same as GOT64. */ 62 RELOC_NUMBER (R_X86_64_PLTOFF64, 31) /* 64 bit GOT relative offset 63 to PLT entry */ 64 RELOC_NUMBER (R_X86_64_SIZE32, 32) /* 32-bit symbol size */ 65 RELOC_NUMBER (R_X86_64_SIZE64, 33) /* 64-bit symbol size */ 66 RELOC_NUMBER (R_X86_64_GOTPC32_TLSDESC, 34) 67 /* 32 bit signed pc relative 68 offset to TLS descriptor 69 in the GOT. */ 70 RELOC_NUMBER (R_X86_64_TLSDESC_CALL, 35) /* Relaxable call through TLS 71 descriptor. */ 72 RELOC_NUMBER (R_X86_64_TLSDESC, 36) /* 2x64-bit TLS descriptor. */ 73 RELOC_NUMBER (R_X86_64_IRELATIVE, 37) /* Adjust indirectly by program base */ 74 RELOC_NUMBER (R_X86_64_RELATIVE64, 38) /* 64bit adjust by program base */ 75 RELOC_NUMBER (R_X86_64_PC32_BND, 39) /* PC relative 32 bit 76 signed with BND prefix */ 77 RELOC_NUMBER (R_X86_64_PLT32_BND, 40) /* 32 bit PLT address with 78 BND prefix */ 79 /* Load from 32 bit signed pc relative offset to GOT entry without 80 REX nor REX2 prefixes, relaxable. */ 81 RELOC_NUMBER (R_X86_64_GOTPCRELX, 41) 82 /* Load from 32 bit signed pc relative offset to GOT entry with 83 REX prefix, relaxable. */ 84 RELOC_NUMBER (R_X86_64_REX_GOTPCRELX, 42) 85 /* Load from 32 bit signed pc relative offset to GOT entry if the 86 instruction starts at 4 bytes before the relocation offset, 87 relaxable. */ 88 RELOC_NUMBER (R_X86_64_CODE_4_GOTPCRELX, 43) 89 /* PC relative offset to IE GOT entry if the instruction starts at 90 4 bytes before the relocation offset. */ 91 RELOC_NUMBER (R_X86_64_CODE_4_GOTTPOFF, 44) 92 /* 32 bit signed pc relative offset to TLS descriptor in the GOT if 93 instruction starts at 4 bytes before the relocation offset. */ 94 RELOC_NUMBER (R_X86_64_CODE_4_GOTPC32_TLSDESC, 45) 95 RELOC_NUMBER (R_X86_64_GNU_VTINHERIT, 250) /* GNU C++ hack */ 96 RELOC_NUMBER (R_X86_64_GNU_VTENTRY, 251) /* GNU C++ hack */ 97END_RELOC_NUMBERS (R_X86_64_max) 98 99/* Processor specific section types. */ 100 101#define SHT_X86_64_UNWIND 0x70000001 /* unwind information */ 102 103/* Like SHN_COMMON but the symbol will be allocated in the .lbss 104 section. */ 105#define SHN_X86_64_LCOMMON (SHN_LORESERVE + 2) 106 107#define SHF_X86_64_LARGE 0x10000000 108 109#define DT_X86_64_PLT (DT_LOPROC + 0) 110#define DT_X86_64_PLTSZ (DT_LOPROC + 1) 111#define DT_X86_64_PLTENT (DT_LOPROC + 3) 112 113#endif 114