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
|
#ifndef _LINUX_ELFCORE_H
#define _LINUX_ELFCORE_H
#include <linux/types.h>
#include <linux/signal.h>
#include <linux/time.h>
#ifdef __KERNEL__
#include <linux/user.h>
#endif
#include <linux/ptrace.h>
#include <linux/elf.h>
#include <linux/fs.h>
struct elf_siginfo
{
int si_signo; /* signal number */
int si_code; /* extra code */
int si_errno; /* errno */
};
#ifdef __KERNEL__
#include <asm/elf.h>
#endif
#ifndef __KERNEL__
typedef elf_greg_t greg_t;
typedef elf_gregset_t gregset_t;
typedef elf_fpregset_t fpregset_t;
typedef elf_fpxregset_t fpxregset_t;
#define NGREG ELF_NGREG
#endif
/*
* Definitions to generate Intel SVR4-like core files.
* These mostly have the same names as the SVR4 types with "elf_"
* tacked on the front to prevent clashes with linux definitions,
* and the typedef forms have been avoided. This is mostly like
* the SVR4 structure, but more Linuxy, with things that Linux does
* not support and which gdb doesn't really use excluded.
* Fields present but not used are marked with "XXX".
*/
struct elf_prstatus
{
#if 0
long pr_flags; /* XXX Process flags */
short pr_why; /* XXX Reason for process halt */
short pr_what; /* XXX More detailed reason */
#endif
struct elf_siginfo pr_info; /* Info associated with signal */
short pr_cursig; /* Current signal */
unsigned long pr_sigpend; /* Set of pending signals */
unsigned long pr_sighold; /* Set of held signals */
#if 0
struct sigaltstack pr_altstack; /* Alternate stack info */
struct sigaction pr_action; /* Signal action for current sig */
#endif
pid_t pr_pid;
pid_t pr_ppid;
pid_t pr_pgrp;
pid_t pr_sid;
struct timeval pr_utime; /* User time */
struct timeval pr_stime; /* System time */
struct timeval pr_cutime; /* Cumulative user time */
struct timeval pr_cstime; /* Cumulative system time */
#if 0
long pr_instr; /* Current instruction */
#endif
elf_gregset_t pr_reg; /* GP registers */
#ifdef CONFIG_BINFMT_ELF_FDPIC
/* When using FDPIC, the loadmap addresses need to be communicated
* to GDB in order for GDB to do the necessary relocations. The
* fields (below) used to communicate this information are placed
* immediately after ``pr_reg'', so that the loadmap addresses may
* be viewed as part of the register set if so desired.
*/
unsigned long pr_exec_fdpic_loadmap;
unsigned long pr_interp_fdpic_loadmap;
#endif
int pr_fpvalid; /* True if math co-processor being used. */
};
#define ELF_PRARGSZ (80) /* Number of chars for args */
struct elf_prpsinfo
{
char pr_state; /* numeric process state */
char pr_sname; /* char for pr_state */
char pr_zomb; /* zombie */
char pr_nice; /* nice val */
unsigned long pr_flag; /* flags */
__kernel_uid_t pr_uid;
__kernel_gid_t pr_gid;
pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
/* Lots missing */
char pr_fname[16]; /* filename of executable */
char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
};
#ifndef __KERNEL__
typedef struct elf_prstatus prstatus_t;
typedef struct elf_prpsinfo prpsinfo_t;
#define PRARGSZ ELF_PRARGSZ
#endif
#ifdef __KERNEL__
static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
{
#ifdef ELF_CORE_COPY_REGS
ELF_CORE_COPY_REGS((*elfregs), regs)
#else
BUG_ON(sizeof(*elfregs) != sizeof(*regs));
*(struct pt_regs *)elfregs = *regs;
#endif
}
static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
{
#ifdef ELF_CORE_COPY_KERNEL_REGS
ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
#else
elf_core_copy_regs(elfregs, regs);
#endif
}
static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
{
#if defined (ELF_CORE_COPY_TASK_REGS)
return ELF_CORE_COPY_TASK_REGS(t, elfregs);
#elif defined (task_pt_regs)
elf_core_copy_regs(elfregs, task_pt_regs(t));
#endif
return 0;
}
extern int dump_fpu (struct pt_regs *, elf_fpregset_t *);
static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_regs *regs, elf_fpregset_t *fpu)
{
#ifdef ELF_CORE_COPY_FPREGS
return ELF_CORE_COPY_FPREGS(t, fpu);
#else
return dump_fpu(regs, fpu);
#endif
}
#ifdef ELF_CORE_COPY_XFPREGS
static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregset_t *xfpu)
{
return ELF_CORE_COPY_XFPREGS(t, xfpu);
}
#endif
/*
* These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
* extra segments containing the gate 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 gate DSO was being used.
*/
extern Elf_Half elf_core_extra_phdrs(void);
extern int
elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
unsigned long limit);
extern int
elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit);
extern size_t elf_core_extra_data_size(void);
#endif /* __KERNEL__ */
#endif /* _LINUX_ELFCORE_H */
|
