1// i386.h -- ELF definitions specific to EM_386  -*- C++ -*-
2
3// Copyright (C) 2006-2017 Free Software Foundation, Inc.
4// Written by Ian Lance Taylor <iant@google.com>.
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_I386_H
33#define ELFCPP_I386_H
34
35// Documentation for the TLS relocs is taken from
36//   http://people.redhat.com/drepper/tls.pdf
37//   http://www.lsd.ic.unicamp.br/~oliva/writeups/TLS/RFC-TLSDESC-x86.txt
38
39namespace elfcpp
40{
41
42enum
43{
44  R_386_NONE = 0,        // No reloc
45  R_386_32 = 1,          // Direct 32 bit zero extended
46  R_386_PC32 = 2,        // PC relative 32 bit signed
47  R_386_GOT32 = 3,       // 32 bit GOT entry
48  R_386_PLT32 = 4,       // 32 bit PLT address
49  R_386_COPY = 5,        // Copy symbol at runtime
50  R_386_GLOB_DAT = 6,    // Create GOT entry
51  R_386_JUMP_SLOT = 7,   // Create PLT entry
52  R_386_RELATIVE = 8,    // Adjust by program base
53  R_386_GOTOFF = 9,      // 32-bit GOT offset
54  R_386_GOTPC = 10,      // 32-bit PC relative offset to GOT
55  // Used by Sun.
56  R_386_32PLT = 11,
57  // TLS extensions.
58  R_386_TLS_TPOFF = 14,  // Outstanding Initial Exec reloc, gnu-style (both)
59  R_386_TLS_IE = 15,     // Initial Initial Exec reloc, gnu-style (no-PIC)
60  R_386_TLS_GOTIE = 16,  // Initial Initial Exec reloc, gnu-style (for PIC)
61  R_386_TLS_LE = 17,     // Initial Local Exec reloc, gnu-style
62  R_386_TLS_GD = 18,     // Initial General Dynamic reloc, gnu-style
63  R_386_TLS_LDM = 19,    // Initial Local Dynamic reloc, gnu-style
64  // GNU extensions.
65  R_386_16 = 20,         // Direct 16 bit zero extended
66  R_386_PC16 = 21,       // 16 bit sign extended pc relative
67  R_386_8 = 22,          // Direct 8 bit sign extended
68  R_386_PC8 = 23,        // 8 bit sign extended pc relative
69  // More TLS relocs.
70  R_386_TLS_GD_32 = 24,     // Initial General Dynamic reloc, sun-style
71  R_386_TLS_GD_PUSH = 25,   // Initial General Dynamic reloc, sun-style
72  R_386_TLS_GD_CALL = 26,   // Initial General Dynamic reloc, sun-style
73  R_386_TLS_GD_POP = 27,    // Initial General Dynamic reloc, sun-style
74  R_386_TLS_LDM_32 = 28,    // Initial Local Dynamic reloc, sun-style
75  R_386_TLS_LDM_PUSH = 29,  // Initial Local Dynamic reloc, sun-style
76  R_386_TLS_LDM_CALL = 30,  // Initial Local Dynamic reloc, sun-style
77  R_386_TLS_LDM_POP = 31,   // Initial Local Dynamic reloc, sun-style
78  R_386_TLS_LDO_32 = 32,    // Initial Local Dynamic reloc, sun+gnu styles
79  R_386_TLS_IE_32 = 33,     // Initial Initial Exec reloc, sun-style
80  R_386_TLS_LE_32 = 34,     // Initial Local Exec reloc, sun-style
81  R_386_TLS_DTPMOD32 = 35,  // Outstanding General/Local Dynamic reloc, sun+gnu
82  R_386_TLS_DTPOFF32 = 36,  // Outstanding General Dynamic reloc, sun+gnu
83  R_386_TLS_TPOFF32 = 37,   // Outstanding Initial Exec reloc, sun-style
84  R_386_TLS_GOTDESC = 39,   // GOT offset for TLS descriptor
85  R_386_TLS_DESC_CALL = 40, // Marker of call through TLS desc for relaxation
86  R_386_TLS_DESC = 41,      // TLS descriptor containing pointer to code and
87                            // to argument, returning TLS offset for symbol
88  R_386_IRELATIVE = 42,     // Adjust indirectly by program base
89  R_386_GOT32X = 43,        // 32 bit GOT entry, relaxable
90  // Used by Intel.
91  R_386_USED_BY_INTEL_200 = 200,
92  // GNU vtable garbage collection extensions.
93  R_386_GNU_VTINHERIT = 250,
94  R_386_GNU_VTENTRY = 251
95};
96
97} // End namespace elfcpp.
98
99#endif // !defined(ELFCPP_I386_H)
100