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
172
173
174
175
176
177
178
179
|
#ifndef GEMU_H
#define GEMU_H
#include <signal.h>
#include <string.h>
#include "cpu.h"
#include "thunk.h"
#include "gdbstub.h"
typedef siginfo_t target_siginfo_t;
#define target_sigaction sigaction
#ifdef TARGET_I386
struct target_pt_regs {
long ebx;
long ecx;
long edx;
long esi;
long edi;
long ebp;
long eax;
int xds;
int xes;
long orig_eax;
long eip;
int xcs;
long eflags;
long esp;
int xss;
};
struct target_sigcontext {
int sc_onstack;
int sc_mask;
int sc_eax;
int sc_ebx;
int sc_ecx;
int sc_edx;
int sc_edi;
int sc_esi;
int sc_ebp;
int sc_esp;
int sc_ss;
int sc_eflags;
int sc_eip;
int sc_cs;
int sc_ds;
int sc_es;
int sc_fs;
int sc_gs;
};
#define __USER_CS (0x17)
#define __USER_DS (0x1F)
#elif defined(TARGET_PPC)
struct target_pt_regs {
unsigned long gpr[32];
unsigned long nip;
unsigned long msr;
unsigned long orig_gpr3; /* Used for restarting system calls */
unsigned long ctr;
unsigned long link;
unsigned long xer;
unsigned long ccr;
unsigned long mq; /* 601 only (not used at present) */
/* Used on APUS to hold IPL value. */
unsigned long trap; /* Reason for being here */
unsigned long dar; /* Fault registers */
unsigned long dsisr;
unsigned long result; /* Result of a system call */
};
struct target_sigcontext {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore */
int sc_ir; /* pc */
int sc_psw; /* processor status word */
int sc_sp; /* stack pointer if sc_regs == NULL */
void *sc_regs; /* (kernel private) saved state */
};
#endif
typedef struct TaskState {
struct TaskState *next;
int used; /* non zero if used */
uint8_t stack[0];
} __attribute__((aligned(16))) TaskState;
void syscall_init(void);
long do_mach_syscall(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7, uint32_t arg8);
long do_thread_syscall(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7, uint32_t arg8);
long do_unix_syscall(void *cpu_env, int num);
int do_sigaction(int sig, const struct sigaction *act,
struct sigaction *oact);
int do_sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
void qerror(const char *fmt, ...);
void write_dt(void *ptr, unsigned long addr, unsigned long limit, int flags);
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;
/* commpage.c */
void commpage_init(void);
void do_commpage(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7, uint32_t arg8);
/* 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, int num);
/* machload.c */
int mach_exec(const char * filename, char ** argv, char ** envp,
struct target_pt_regs * regs);
/* 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);
/* user access */
/* XXX: todo protect every memory access */
#define lock_user(x,y,z) (void*)(x)
#define unlock_user(x,y,z)
/* Mac OS X ABI arguments processing */
#ifdef TARGET_I386
static inline uint32_t get_int_arg(int *i, CPUX86State *cpu_env)
{
uint32_t *args = (uint32_t*)(cpu_env->regs[R_ESP] + 4 + *i);
*i+=4;
return tswap32(*args);
}
static inline uint64_t get_int64_arg(int *i, CPUX86State *cpu_env)
{
uint64_t *args = (uint64_t*)(cpu_env->regs[R_ESP] + 4 + *i);
*i+=8;
return tswap64(*args);
}
#elif defined(TARGET_PPC)
static inline uint32_t get_int_arg(int *i, CPUPPCState *cpu_env)
{
/* XXX: won't work when args goes on stack after gpr10 */
uint32_t args = (uint32_t)(cpu_env->gpr[3+(*i & 0xff)/4]);
*i+=4;
return tswap32(args);
}
static inline uint64_t get_int64_arg(int *i, CPUPPCState *cpu_env)
{
/* XXX: won't work when args goes on stack after gpr10 */
uint64_t args = (uint64_t)(cpu_env->fpr[1+(*i >> 8)/8]);
*i+=(8 << 8) + 8;
return tswap64(args);
}
#endif
#endif
|
