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
|
#ifndef _INTERNAL_RELOC_H
#define _INTERNAL_RELOC_H
#include <features.h>
#include <elf.h>
#include <stdint.h>
#include <stddef.h>
#include <stdarg.h>
#if UINTPTR_MAX == 0xffffffff
typedef Elf32_Ehdr Ehdr;
typedef Elf32_Phdr Phdr;
typedef Elf32_Sym Sym;
#define R_TYPE(x) ((x)&255)
#define R_SYM(x) ((x)>>8)
#define R_INFO ELF32_R_INFO
#else
typedef Elf64_Ehdr Ehdr;
typedef Elf64_Phdr Phdr;
typedef Elf64_Sym Sym;
#define R_TYPE(x) ((x)&0x7fffffff)
#define R_SYM(x) ((x)>>32)
#define R_INFO ELF64_R_INFO
#endif
/* These enum constants provide unmatchable default values for
* any relocation type the arch does not use. */
enum {
REL_NONE = 0,
REL_SYMBOLIC = -100,
REL_GOT,
REL_PLT,
REL_RELATIVE,
REL_OFFSET,
REL_OFFSET32,
REL_COPY,
REL_SYM_OR_REL,
REL_DTPMOD,
REL_DTPOFF,
REL_TPOFF,
REL_TPOFF_NEG,
REL_TLSDESC,
REL_FUNCDESC,
REL_FUNCDESC_VAL,
};
struct fdpic_loadseg {
uintptr_t addr, p_vaddr, p_memsz;
};
struct fdpic_loadmap {
unsigned short version, nsegs;
struct fdpic_loadseg segs[];
};
struct fdpic_dummy_loadmap {
unsigned short version, nsegs;
struct fdpic_loadseg segs[1];
};
#include "reloc.h"
#ifndef FDPIC_CONSTDISP_FLAG
#define FDPIC_CONSTDISP_FLAG 0
#endif
#ifndef DL_FDPIC
#define DL_FDPIC 0
#endif
#ifndef DL_NOMMU_SUPPORT
#define DL_NOMMU_SUPPORT 0
#endif
#if !DL_FDPIC
#define IS_RELATIVE(x,s) ( \
(R_TYPE(x) == REL_RELATIVE) || \
(R_TYPE(x) == REL_SYM_OR_REL && !R_SYM(x)) )
#else
#define IS_RELATIVE(x,s) ( ( \
(R_TYPE(x) == REL_FUNCDESC_VAL) || \
(R_TYPE(x) == REL_SYMBOLIC) ) \
&& (((s)[R_SYM(x)].st_info & 0xf) == STT_SECTION) )
#endif
#ifndef NEED_MIPS_GOT_RELOCS
#define NEED_MIPS_GOT_RELOCS 0
#endif
#ifndef DT_DEBUG_INDIRECT
#define DT_DEBUG_INDIRECT 0
#endif
#define AUX_CNT 32
#define DYN_CNT 32
typedef void (*stage2_func)(unsigned char *, size_t *);
typedef _Noreturn void (*stage3_func)(size_t *);
hidden void *__dlsym(void *restrict, const char *restrict, void *restrict);
hidden void __dl_seterr(const char *, ...);
hidden int __dl_invalid_handle(void *);
hidden void __dl_vseterr(const char *, va_list);
hidden ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
#endif
|
