blob: b72e23519e0057d01ded86eb85864a7da2952783 (
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
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
|
/*
* Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#ifndef __UM_ELF_I386_H
#define __UM_ELF_I386_H
#include "user.h"
#define R_386_NONE 0
#define R_386_32 1
#define R_386_PC32 2
#define R_386_GOT32 3
#define R_386_PLT32 4
#define R_386_COPY 5
#define R_386_GLOB_DAT 6
#define R_386_JMP_SLOT 7
#define R_386_RELATIVE 8
#define R_386_GOTOFF 9
#define R_386_GOTPC 10
#define R_386_NUM 11
typedef unsigned long elf_greg_t;
#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct user_i387_struct elf_fpregset_t;
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
#define elf_check_arch(x) \
(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_386
#define ELF_PLAT_INIT(regs, load_addr) do { \
PT_REGS_EBX(regs) = 0; \
PT_REGS_ECX(regs) = 0; \
PT_REGS_EDX(regs) = 0; \
PT_REGS_ESI(regs) = 0; \
PT_REGS_EDI(regs) = 0; \
PT_REGS_EBP(regs) = 0; \
PT_REGS_EAX(regs) = 0; \
} while(0)
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE 4096
#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
/* Shamelessly stolen from include/asm-i386/elf.h */
#define ELF_CORE_COPY_REGS(pr_reg, regs) do { \
pr_reg[0] = PT_REGS_EBX(regs); \
pr_reg[1] = PT_REGS_ECX(regs); \
pr_reg[2] = PT_REGS_EDX(regs); \
pr_reg[3] = PT_REGS_ESI(regs); \
pr_reg[4] = PT_REGS_EDI(regs); \
pr_reg[5] = PT_REGS_EBP(regs); \
pr_reg[6] = PT_REGS_EAX(regs); \
pr_reg[7] = PT_REGS_DS(regs); \
pr_reg[8] = PT_REGS_ES(regs); \
/* fake once used fs and gs selectors? */ \
pr_reg[9] = PT_REGS_DS(regs); \
pr_reg[10] = PT_REGS_DS(regs); \
pr_reg[11] = PT_REGS_SYSCALL_NR(regs); \
pr_reg[12] = PT_REGS_IP(regs); \
pr_reg[13] = PT_REGS_CS(regs); \
pr_reg[14] = PT_REGS_EFLAGS(regs); \
pr_reg[15] = PT_REGS_SP(regs); \
pr_reg[16] = PT_REGS_SS(regs); \
} while(0);
extern long elf_aux_hwcap;
#define ELF_HWCAP (elf_aux_hwcap)
extern char * elf_aux_platform;
#define ELF_PLATFORM (elf_aux_platform)
#define SET_PERSONALITY(ex, ibcs2) do ; while(0)
extern unsigned long vsyscall_ehdr;
extern unsigned long vsyscall_end;
extern unsigned long __kernel_vsyscall;
#define VSYSCALL_BASE vsyscall_ehdr
#define VSYSCALL_END vsyscall_end
/*
* This is the range that is readable by user mode, and things
* acting like user mode such as get_user_pages.
*/
#define FIXADDR_USER_START VSYSCALL_BASE
#define FIXADDR_USER_END VSYSCALL_END
/*
* Architecture-neutral AT_ values in 0-17, leave some room
* for more of them, start the x86-specific ones at 32.
*/
#define AT_SYSINFO 32
#define AT_SYSINFO_EHDR 33
#define ARCH_DLINFO \
do { \
if ( vsyscall_ehdr ) { \
NEW_AUX_ENT(AT_SYSINFO, __kernel_vsyscall); \
NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr); \
} \
} while (0)
/*
* These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out
* extra segments containing the vsyscall DSO contents. Dumping its
* contents makes post-mortem fully interpretable later without matching up
* the same kernel and hardware config to see what PC values meant.
* Dumping its extra ELF program headers includes all the other information
* a debugger needs to easily find how the vsyscall DSO was being used.
*/
#define ELF_CORE_EXTRA_PHDRS \
(vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0 )
#define ELF_CORE_WRITE_EXTRA_PHDRS \
if ( vsyscall_ehdr ) { \
const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr; \
const struct elf_phdr *const phdrp = \
(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); \
int i; \
Elf32_Off ofs = 0; \
for (i = 0; i < ehdrp->e_phnum; ++i) { \
struct elf_phdr phdr = phdrp[i]; \
if (phdr.p_type == PT_LOAD) { \
ofs = phdr.p_offset = offset; \
offset += phdr.p_filesz; \
} \
else \
phdr.p_offset += ofs; \
phdr.p_paddr = 0; /* match other core phdrs */ \
DUMP_WRITE(&phdr, sizeof(phdr)); \
} \
}
#define ELF_CORE_WRITE_EXTRA_DATA \
if ( vsyscall_ehdr ) { \
const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr; \
const struct elf_phdr *const phdrp = \
(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); \
int i; \
for (i = 0; i < ehdrp->e_phnum; ++i) { \
if (phdrp[i].p_type == PT_LOAD) \
DUMP_WRITE((void *) phdrp[i].p_vaddr, \
phdrp[i].p_filesz); \
} \
}
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/
|
