1// x86-64.h -- ELF definitions specific to EM_X86_64 -*- C++ -*- 2 3// Copyright (C) 2006-2024 Free Software Foundation, Inc. 4// Written by Andrew Chatham. 5 6// This file is part of elfcpp. 7 8// This program is free software; you can redistribute it and/or 9// modify it under the terms of the GNU Library General Public License 10// as published by the Free Software Foundation; either version 2, or 11// (at your option) any later version. 12 13// In addition to the permissions in the GNU Library General Public 14// License, the Free Software Foundation gives you unlimited 15// permission to link the compiled version of this file into 16// combinations with other programs, and to distribute those 17// combinations without any restriction coming from the use of this 18// file. (The Library Public License restrictions do apply in other 19// respects; for example, they cover modification of the file, and 20/// distribution when not linked into a combined executable.) 21 22// This program is distributed in the hope that it will be useful, but 23// WITHOUT ANY WARRANTY; without even the implied warranty of 24// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 25// Library General Public License for more details. 26 27// You should have received a copy of the GNU Library General Public 28// License along with this program; if not, write to the Free Software 29// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 30// 02110-1301, USA. 31 32#ifndef ELFCPP_X86_64_H 33#define ELFCPP_X86_64_H 34 35namespace elfcpp 36{ 37 38// Documentation is taken from 39// http://www.x86-64.org/documentation/abi-0.98.pdf 40// elf.h 41// Documentation for the TLS relocs is taken from 42// http://people.redhat.com/drepper/tls.pdf 43// http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt 44 45enum 46{ 47 R_X86_64_NONE = 0, // No reloc 48 R_X86_64_64 = 1, // Direct 64 bit 49 R_X86_64_PC32 = 2, // PC relative 32 bit signed 50 R_X86_64_GOT32 = 3, // 32 bit GOT entry 51 R_X86_64_PLT32 = 4, // 32 bit PLT address 52 R_X86_64_COPY = 5, // Copy symbol at runtime 53 R_X86_64_GLOB_DAT = 6, // Create GOT entry 54 R_X86_64_JUMP_SLOT = 7, // Create PLT entry 55 R_X86_64_RELATIVE = 8, // Adjust by program base 56 R_X86_64_GOTPCREL = 9, // 32 bit signed PC relative offset to GOT 57 R_X86_64_32 = 10, // Direct 32 bit zero extended 58 R_X86_64_32S = 11, // Direct 32 bit sign extended 59 R_X86_64_16 = 12, // Direct 16 bit zero extended 60 R_X86_64_PC16 = 13, // 16 bit sign extended pc relative 61 R_X86_64_8 = 14, // Direct 8 bit sign extended 62 R_X86_64_PC8 = 15, // 8 bit sign extended pc relative 63 64 // TLS relocations 65 R_X86_64_DTPMOD64 = 16, // ID of module containing symbol 66 R_X86_64_DTPOFF64 = 17, // Offset in module's TLS block 67 R_X86_64_TPOFF64 = 18, // Offset in initial TLS block 68 R_X86_64_TLSGD = 19, // 32 bit signed PC relative offset to two 69 // GOT entries for GD symbol 70 R_X86_64_TLSLD = 20, // 32 bit signed PC relative offset to two 71 // GOT entries for LD symbol 72 R_X86_64_DTPOFF32 = 21, // Offset in TLS block 73 R_X86_64_GOTTPOFF = 22, // 32 bit signed PC relative offset to GOT 74 // entry for IE symbol 75 R_X86_64_TPOFF32 = 23, // Offset in initial TLS block 76 77 R_X86_64_PC64 = 24, // 64-bit PC relative 78 R_X86_64_GOTOFF64 = 25, // 64-bit GOT offset 79 R_X86_64_GOTPC32 = 26, // 32-bit PC relative offset to GOT 80 81 R_X86_64_GOT64 = 27, // 64-bit GOT entry offset 82 R_X86_64_GOTPCREL64 = 28, // 64-bit PC relative offset to GOT entry 83 R_X86_64_GOTPC64 = 29, // 64-bit PC relative offset to GOT 84 R_X86_64_GOTPLT64 = 30, // Like GOT64, indicates that PLT entry needed 85 R_X86_64_PLTOFF64 = 31, // 64-bit GOT relative offset to PLT entry 86 87 R_X86_64_SIZE32 = 32, 88 R_X86_64_SIZE64 = 33, 89 90 R_X86_64_GOTPC32_TLSDESC = 34, // 32-bit PC relative to TLS descriptor in GOT 91 R_X86_64_TLSDESC_CALL = 35, // Relaxable call through TLS descriptor 92 R_X86_64_TLSDESC = 36, // 2 by 64-bit TLS descriptor 93 R_X86_64_IRELATIVE = 37, // Adjust indirectly by program base 94 R_X86_64_RELATIVE64 = 38, // 64-bit adjust by program base 95 R_X86_64_PC32_BND = 39, // PC relative 32 bit signed with BND prefix 96 R_X86_64_PLT32_BND = 40, // 32 bit PLT address with BND prefix 97 R_X86_64_GOTPCRELX = 41, // 32 bit signed PC relative offset to GOT 98 // without REX nor REX2 prefixes, relaxable. 99 R_X86_64_REX_GOTPCRELX = 42, // 32 bit signed PC relative offset to GOT 100 // with REX prefix, relaxable. 101 R_X86_64_CODE_4_GOTPCRELX = 43, // 32 bit signed PC relative offset to 102 // GOT if the instruction starts at 4 103 // bytes before the relocation offset, 104 // relaxable. 105 R_X86_64_CODE_4_GOTTPOFF = 44, // 32 bit signed PC relative offset to 106 // GOT entry for IE symbol if the 107 // instruction starts at 4 bytes before 108 // the relocation offset. 109 R_X86_64_CODE_4_GOTPC32_TLSDESC = 45, // 32-bit PC relative to TLS 110 // descriptor in GOT if the 111 // instruction starts at 4 bytes 112 // before the relocation offset. 113 // GNU vtable garbage collection extensions. 114 R_X86_64_GNU_VTINHERIT = 250, 115 R_X86_64_GNU_VTENTRY = 251 116}; 117 118// The bit values that can appear in the GNU_PROPERTY_X86_FEATURE_1_AND 119// program property. 120 121const uint64_t GNU_PROPERTY_X86_FEATURE_1_IBT = 1ULL << 0; 122const uint64_t GNU_PROPERTY_X86_FEATURE_1_SHSTK = 1ULL << 1; 123 124} // End namespace elfcpp. 125 126#endif // !defined(ELFCPP_X86_64_H) 127