1// x86-64.h -- ELF definitions specific to EM_X86_64  -*- C++ -*-
2
3// Copyright (C) 2006-2017 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 prefix, relaxable.
99  R_X86_64_REX_GOTPCRELX = 42, // 32 bit signed PC relative offset to GOT
100			       // with REX prefix, relaxable.
101  // GNU vtable garbage collection extensions.
102  R_X86_64_GNU_VTINHERIT = 250,
103  R_X86_64_GNU_VTENTRY = 251
104};
105
106} // End namespace elfcpp.
107
108#endif // !defined(ELFCPP_X86_64_H)
109