1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* $Id: elf64.h $ */
/** @file
* IPRT - ELF 64-bit header.
*/
/*
* Copyright (C) 2010-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
#ifndef IPRT_INCLUDED_formats_elf64_h
#define IPRT_INCLUDED_formats_elf64_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/assertcompile.h>
#include "elf-common.h"
/*
* ELF 64 standard types.
*/
typedef uint64_t Elf64_Addr;
typedef uint64_t Elf64_Off;
typedef uint16_t Elf64_Half;
typedef uint32_t Elf64_Word;
typedef int32_t Elf64_Sword;
typedef uint64_t Elf64_Xword;
typedef int64_t Elf64_Sxword;
/*
* Ensure type size correctness in accordance to ELF-64 Object File Format, Version 1.5 Draft 2, p2.
*/
AssertCompileSize(Elf64_Addr, 8);
AssertCompileSize(Elf64_Off, 8);
AssertCompileSize(Elf64_Half, 2);
AssertCompileSize(Elf64_Word, 4);
AssertCompileSize(Elf64_Sword, 4);
AssertCompileSize(Elf64_Xword, 8);
AssertCompileSize(Elf64_Sxword, 8);
/*
* ELF 64 non-standard types for convenience.
*/
typedef Elf64_Xword Elf64_Size;
typedef Elf64_Word Elf64_Hashelt;
/*
* ELF Header.
*/
typedef struct
{
unsigned char e_ident[16]; /* ELF identification. */
Elf64_Half e_type; /* Object file type. */
Elf64_Half e_machine; /* Machine type. */
Elf64_Word e_version; /* Object file version. */
Elf64_Addr e_entry; /* Entry point address. */
Elf64_Off e_phoff; /* Program header offset. */
Elf64_Off e_shoff; /* Section header offset. */
Elf64_Word e_flags; /* Processor-specific flags. */
Elf64_Half e_ehsize; /* ELF header size. */
Elf64_Half e_phentsize; /* Size of program header entry. */
Elf64_Half e_phnum; /* Number of program header entries. */
Elf64_Half e_shentsize; /* Size of section header entry. */
Elf64_Half e_shnum; /* Number of section header entries. */
Elf64_Half e_shstrndx; /* Section name string table index. */
} Elf64_Ehdr;
/*
* Section header.
*/
typedef struct
{
Elf64_Word sh_name; /* Section name. */
Elf64_Word sh_type; /* Section type. */
Elf64_Xword sh_flags; /* Section attributes. */
Elf64_Addr sh_addr; /* Virtual address in memory. */
Elf64_Off sh_offset; /* Offset in file. */
Elf64_Xword sh_size; /* Size of section. */
Elf64_Word sh_link; /* Link to other section. */
Elf64_Word sh_info; /* Miscellaneous information. */
Elf64_Xword sh_addralign; /* Address alignment boundary. */
Elf64_Xword sh_entsize; /* Size of entries, if section has table. */
} Elf64_Shdr;
/*
* Program header.
*/
typedef struct
{
Elf64_Word p_type; /* Type of segment. */
Elf64_Word p_flags; /* Segment attributes. */
Elf64_Off p_offset; /* Offset in file. */
Elf64_Addr p_vaddr; /* Virtual address in memory. */
Elf64_Addr p_paddr; /* Physical address (reserved). */
Elf64_Xword p_filesz; /* Size of segment in file. */
Elf64_Xword p_memsz; /* Size of segment in memory. */
Elf64_Xword p_align; /* Alignment of segment. */
} Elf64_Phdr;
/*
* Note header.
*/
typedef struct
{
Elf64_Word n_namesz; /* Length of note's name. */
Elf64_Word n_descsz; /* Length of note's description. */
Elf64_Word n_type; /* Type of note. */
} Elf64_Nhdr;
/*
* Symbol table entry.
*/
typedef struct
{
Elf64_Word st_name; /* Symbol name. */
unsigned char st_info; /* Type and binding attributes. */
unsigned char st_other; /* Reserved. */
Elf64_Half st_shndx; /* Section header table index. */
Elf64_Addr st_value; /* Symbol value. */
Elf64_Xword st_size; /* Size associated with symbol. */
} Elf64_Sym;
/*
* Relocations.
*/
typedef struct
{
Elf64_Addr r_offset; /* Location to be relocated. */
Elf64_Xword r_info; /* Symbol index and type of relocation. */
} Elf64_Rel;
typedef struct
{
Elf64_Addr r_offset; /* Location to be relocated. */
Elf64_Xword r_info; /* Symbol index and type of relocation. */
Elf64_Sxword r_addend; /* Constant part of expression. */
} Elf64_Rela;
/*
* Dynamic section entry.
* ".dynamic" section contains an array of this.
*/
typedef struct
{
Elf64_Sxword d_tag; /* Type of entry. */
union
{
Elf64_Xword d_val; /* Integer value. */
Elf64_Addr d_ptr; /* Virtual address value. */
} d_un;
} Elf64_Dyn;
/*
* Helper macros.
*/
/** The symbol's type. */
#define ELF64_ST_TYPE(info) ((info) & 0xF)
/** The symbol's binding. */
#define ELF64_ST_BIND(info) ((info) >> 4)
/** Make st_info. given binding and type. */
#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf))
/** Relocation type. */
#define ELF64_R_TYPE(info) ((unsigned char)(info))
/** Relocation symbol index. */
#define ELF64_R_SYM(info) ((info) >> 32)
/** Make r_info given the symbol index and type. */
#define ELF64_R_INFO(sym, type) (((sym) << 32) + (unsigned char)(type))
#endif /* !IPRT_INCLUDED_formats_elf64_h */
|
