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
|
/*
+----------------------------------------------------------------------+
| Zend JIT |
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Dmitry Stogov <dmitry@php.net> |
| Xinchen Hui <laruence@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_ELF
#define ZEND_ELF
#if SIZEOF_SIZE_T == 8
# define ELF64
#else
# undef ELF64
#endif
typedef struct _zend_elf_header {
uint8_t emagic[4];
uint8_t eclass;
uint8_t eendian;
uint8_t eversion;
uint8_t eosabi;
uint8_t eabiversion;
uint8_t epad[7];
uint16_t type;
uint16_t machine;
uint32_t version;
uintptr_t entry;
uintptr_t phofs;
uintptr_t shofs;
uint32_t flags;
uint16_t ehsize;
uint16_t phentsize;
uint16_t phnum;
uint16_t shentsize;
uint16_t shnum;
uint16_t shstridx;
} zend_elf_header;
typedef struct zend_elf_sectheader {
uint32_t name;
uint32_t type;
uintptr_t flags;
uintptr_t addr;
uintptr_t ofs;
uintptr_t size;
uint32_t link;
uint32_t info;
uintptr_t align;
uintptr_t entsize;
} zend_elf_sectheader;
#define ELFSECT_IDX_ABS 0xfff1
enum {
ELFSECT_TYPE_PROGBITS = 1,
ELFSECT_TYPE_SYMTAB = 2,
ELFSECT_TYPE_STRTAB = 3,
ELFSECT_TYPE_NOBITS = 8,
ELFSECT_TYPE_DYNSYM = 11,
};
#define ELFSECT_FLAGS_WRITE (1 << 0)
#define ELFSECT_FLAGS_ALLOC (1 << 1)
#define ELFSECT_FLAGS_EXEC (1 << 2)
#define ELFSECT_FLAGS_TLS (1 << 10)
typedef struct zend_elf_symbol {
#ifdef ELF64
uint32_t name;
uint8_t info;
uint8_t other;
uint16_t sectidx;
uintptr_t value;
uint64_t size;
#else
uint32_t name;
uintptr_t value;
uint32_t size;
uint8_t info;
uint8_t other;
uint16_t sectidx;
#endif
} zend_elf_symbol;
#define ELFSYM_BIND(info) ((info) >> 4)
#define ELFSYM_TYPE(info) ((info) & 0xf)
#define ELFSYM_INFO(bind, type) (((bind) << 4) | (type))
enum {
ELFSYM_TYPE_DATA = 2,
ELFSYM_TYPE_FUNC = 2,
ELFSYM_TYPE_FILE = 4,
};
enum {
ELFSYM_BIND_LOCAL = 0,
ELFSYM_BIND_GLOBAL = 1,
};
void zend_elf_load_symbols(void);
#endif
|
