aboutsummaryrefslogtreecommitdiff
path: root/fesvr/elf.h
blob: b4b0add60198a90ccde829154e5de7d82ac5aa49 (plain)
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
// See LICENSE for details.

#ifndef _ELF_H
#define _ELF_H

#include <stdint.h>

#define IS_ELF(hdr) \
  ((hdr).e_ident[0] == 0x7f && (hdr).e_ident[1] == 'E' && \
   (hdr).e_ident[2] == 'L'  && (hdr).e_ident[3] == 'F')

#define IS_ELF32(hdr) (IS_ELF(hdr) && (hdr).e_ident[4] == 1)
#define IS_ELF64(hdr) (IS_ELF(hdr) && (hdr).e_ident[4] == 2)
#define IS_ELFLE(hdr) (IS_ELF(hdr) && (hdr).e_ident[5] == 1)
#define IS_ELFBE(hdr) (IS_ELF(hdr) && (hdr).e_ident[5] == 2)

#define PT_LOAD 1

#define SHT_NOBITS 8

typedef struct {
  uint8_t  e_ident[16];
  uint16_t e_type;
  uint16_t e_machine;
  uint32_t e_version;
  uint32_t e_entry;
  uint32_t e_phoff;
  uint32_t e_shoff;
  uint32_t e_flags;
  uint16_t e_ehsize;
  uint16_t e_phentsize;
  uint16_t e_phnum;
  uint16_t e_shentsize;
  uint16_t e_shnum;
  uint16_t e_shstrndx;
} Elf32_Ehdr;

typedef struct {
  uint32_t sh_name;
  uint32_t sh_type;
  uint32_t sh_flags;
  uint32_t sh_addr;
  uint32_t sh_offset;
  uint32_t sh_size;
  uint32_t sh_link;
  uint32_t sh_info;
  uint32_t sh_addralign;
  uint32_t sh_entsize;
} Elf32_Shdr;

typedef struct
{
  uint32_t p_type;
  uint32_t p_offset;
  uint32_t p_vaddr;
  uint32_t p_paddr;
  uint32_t p_filesz;
  uint32_t p_memsz;
  uint32_t p_flags;
  uint32_t p_align;
} Elf32_Phdr;

typedef struct
{
  uint32_t st_name;
  uint32_t st_value;
  uint32_t st_size;
  uint8_t  st_info;
  uint8_t  st_other;
  uint16_t st_shndx;
} Elf32_Sym;

typedef struct {
  uint8_t  e_ident[16];
  uint16_t e_type;
  uint16_t e_machine;
  uint32_t e_version;
  uint64_t e_entry;
  uint64_t e_phoff;
  uint64_t e_shoff;
  uint32_t e_flags;
  uint16_t e_ehsize;
  uint16_t e_phentsize;
  uint16_t e_phnum;
  uint16_t e_shentsize;
  uint16_t e_shnum;
  uint16_t e_shstrndx;
} Elf64_Ehdr;

typedef struct {
  uint32_t sh_name;
  uint32_t sh_type;
  uint64_t sh_flags;
  uint64_t sh_addr;
  uint64_t sh_offset;
  uint64_t sh_size;
  uint32_t sh_link;
  uint32_t sh_info;
  uint64_t sh_addralign;
  uint64_t sh_entsize;
} Elf64_Shdr;

typedef struct {
  uint32_t p_type;
  uint32_t p_flags;
  uint64_t p_offset;
  uint64_t p_vaddr;
  uint64_t p_paddr;
  uint64_t p_filesz;
  uint64_t p_memsz;
  uint64_t p_align;
} Elf64_Phdr;

typedef struct {
  uint32_t st_name;
  uint8_t  st_info;
  uint8_t  st_other;
  uint16_t st_shndx;
  uint64_t st_value;
  uint64_t st_size;
} Elf64_Sym;

#endif