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
|
#ifndef GEMU_H
#define GEMU_H
#include "thunk.h"
#include <signal.h>
#include "syscall_defs.h"
#include "cpu.h"
#include "syscall.h"
/* This struct is used to hold certain information about the image.
* Basically, it replicates in user space what would be certain
* task_struct fields in the kernel
*/
struct image_info {
unsigned long start_code;
unsigned long end_code;
unsigned long end_data;
unsigned long start_brk;
unsigned long brk;
unsigned long start_mmap;
unsigned long mmap;
unsigned long rss;
unsigned long start_stack;
unsigned long arg_start;
unsigned long arg_end;
unsigned long env_start;
unsigned long env_end;
unsigned long entry;
int personality;
};
#ifdef TARGET_I386
/* Information about the current linux thread */
struct vm86_saved_state {
uint32_t eax; /* return code */
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t esi;
uint32_t edi;
uint32_t ebp;
uint32_t esp;
uint32_t eflags;
uint32_t eip;
uint16_t cs, ss, ds, es, fs, gs;
};
#endif
/* NOTE: we force a big alignment so that the stack stored after is
aligned too */
typedef struct TaskState {
struct TaskState *next;
#ifdef TARGET_I386
struct target_vm86plus_struct *target_v86;
struct vm86_saved_state vm86_saved_regs;
struct target_vm86plus_struct vm86plus;
uint32_t v86flags;
uint32_t v86mask;
#endif
int used; /* non zero if used */
uint8_t stack[0];
} __attribute__((aligned(16))) TaskState;
extern TaskState *first_task_state;
int elf_exec(const char * filename, char ** argv, char ** envp,
struct target_pt_regs * regs, struct image_info *infop);
void target_set_brk(char *new_brk);
void syscall_init(void);
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
long arg4, long arg5, long arg6);
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
extern CPUState *global_env;
void cpu_loop(CPUState *env);
void init_paths(const char *prefix);
const char *path(const char *pathname);
extern int loglevel;
extern FILE *logfile;
/* signal.c */
void process_pending_signals(void *cpu_env);
void signal_init(void);
int queue_signal(int sig, target_siginfo_t *info);
void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
long do_sigreturn(CPUState *env);
long do_rt_sigreturn(CPUState *env);
#ifdef TARGET_I386
/* vm86.c */
void save_v86_state(CPUX86State *env);
void handle_vm86_trap(CPUX86State *env, int trapno);
void handle_vm86_fault(CPUX86State *env);
int do_vm86(CPUX86State *env, long subfunction,
struct target_vm86plus_struct * target_v86);
#endif
/* mmap.c */
int target_mprotect(unsigned long start, unsigned long len, int prot);
long target_mmap(unsigned long start, unsigned long len, int prot,
int flags, int fd, unsigned long offset);
int target_munmap(unsigned long start, unsigned long len);
long target_mremap(unsigned long old_addr, unsigned long old_size,
unsigned long new_size, unsigned long flags,
unsigned long new_addr);
int target_msync(unsigned long start, unsigned long len, int flags);
#endif
|
