1 // i386.h -- ELF definitions specific to EM_386 -*- C++ -*-
2
3 // Copyright (C) 2006-2023 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
39 namespace elfcpp
40 {
41
42 enum
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)