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source: vbox/trunk/include/iprt/formats/elf-i386.h@ 62534

Last change on this file since 62534 was 62458, checked in by vboxsync, 8 years ago

include/iprt: scm

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1/*-
2 * Copyright (c) 1996-1997 John D. Polstra.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef ___iprt_formats_elf_i386_h
28#define ___iprt_formats_elf_i386_h
29
30#if 0 /* later */
31
32/*
33 * Auxiliary vector entries for passing information to the interpreter.
34 *
35 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
36 * but POSIX lays claim to all symbols ending with "_t".
37 */
38
39typedef struct { /* Auxiliary vector entry on initial stack */
40 int a_type; /* Entry type. */
41 union {
42 long a_val; /* Integer value. */
43 void *a_ptr; /* Address. */
44 void (*a_fcn)(void); /* Function pointer (not used). */
45 } a_un;
46} Elf32_Auxinfo;
47
48#if __ELF_WORD_SIZE == 64
49/* Fake for amd64 loader support */
50typedef struct {
51 int fake;
52} Elf64_Auxinfo;
53#endif
54
55/* Values for a_type. */
56#define AT_NULL 0 /* Terminates the vector. */
57#define AT_IGNORE 1 /* Ignored entry. */
58#define AT_EXECFD 2 /* File descriptor of program to load. */
59#define AT_PHDR 3 /* Program header of program already loaded. */
60#define AT_PHENT 4 /* Size of each program header entry. */
61#define AT_PHNUM 5 /* Number of program header entries. */
62#define AT_PAGESZ 6 /* Page size in bytes. */
63#define AT_BASE 7 /* Interpreter's base address. */
64#define AT_FLAGS 8 /* Flags (unused for i386). */
65#define AT_ENTRY 9 /* Where interpreter should transfer control. */
66
67/*
68 * The following non-standard values are used for passing information
69 * from John Polstra's testbed program to the dynamic linker. These
70 * are expected to go away soon.
71 *
72 * Unfortunately, these overlap the Linux non-standard values, so they
73 * must not be used in the same context.
74 */
75#define AT_BRK 10 /* Starting point for sbrk and brk. */
76#define AT_DEBUG 11 /* Debugging level. */
77
78/*
79 * The following non-standard values are used in Linux ELF binaries.
80 */
81#define AT_NOTELF 10 /* Program is not ELF ?? */
82#define AT_UID 11 /* Real uid. */
83#define AT_EUID 12 /* Effective uid. */
84#define AT_GID 13 /* Real gid. */
85#define AT_EGID 14 /* Effective gid. */
86
87#define AT_COUNT 15 /* Count of defined aux entry types. */
88
89#endif /* later */
90
91
92/*
93 * Relocation types.
94 */
95
96#define R_386_NONE 0 /* No relocation. */
97#define R_386_32 1 /* Add symbol value. */
98#define R_386_PC32 2 /* Add PC-relative symbol value. */
99#define R_386_GOT32 3 /* Add PC-relative GOT offset. */
100#define R_386_PLT32 4 /* Add PC-relative PLT offset. */
101#define R_386_COPY 5 /* Copy data from shared object. */
102#define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */
103#define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */
104#define R_386_RELATIVE 8 /* Add load address of shared object. */
105#define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */
106#define R_386_GOTPC 10 /* Add PC-relative GOT table address. */
107#define R_386_TLS_TPOFF 14 /* Negative offset in static TLS block */
108#define R_386_TLS_IE 15 /* Absolute address of GOT for -ve static TLS */
109#define R_386_TLS_GOTIE 16 /* GOT entry for negative static TLS block */
110#define R_386_TLS_LE 17 /* Negative offset relative to static TLS */
111#define R_386_TLS_GD 18 /* 32 bit offset to GOT (index,off) pair */
112#define R_386_TLS_LDM 19 /* 32 bit offset to GOT (index,zero) pair */
113#define R_386_TLS_GD_32 24 /* 32 bit offset to GOT (index,off) pair */
114#define R_386_TLS_GD_PUSH 25 /* pushl instruction for Sun ABI GD sequence */
115#define R_386_TLS_GD_CALL 26 /* call instruction for Sun ABI GD sequence */
116#define R_386_TLS_GD_POP 27 /* popl instruction for Sun ABI GD sequence */
117#define R_386_TLS_LDM_32 28 /* 32 bit offset to GOT (index,zero) pair */
118#define R_386_TLS_LDM_PUSH 29 /* pushl instruction for Sun ABI LD sequence */
119#define R_386_TLS_LDM_CALL 30 /* call instruction for Sun ABI LD sequence */
120#define R_386_TLS_LDM_POP 31 /* popl instruction for Sun ABI LD sequence */
121#define R_386_TLS_LDO_32 32 /* 32 bit offset from start of TLS block */
122#define R_386_TLS_IE_32 33 /* 32 bit offset to GOT static TLS offset entry */
123#define R_386_TLS_LE_32 34 /* 32 bit offset within static TLS block */
124#define R_386_TLS_DTPMOD32 35 /* GOT entry containing TLS index */
125#define R_386_TLS_DTPOFF32 36 /* GOT entry containing TLS offset */
126#define R_386_TLS_TPOFF32 37 /* GOT entry of -ve static TLS offset */
127
128#define R_386_COUNT 38 /* Count of defined relocation types. */
129
130#endif
131
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