Revision 9de5e440 linux-user/main.c
| b/linux-user/main.c | ||
|---|---|---|
| 33 | 33 |
FILE *logfile = NULL; |
| 34 | 34 |
int loglevel; |
| 35 | 35 |
|
| 36 |
unsigned long x86_stack_size; |
|
| 36 |
/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so |
|
| 37 |
we allocate a bigger stack. Need a better solution, for example |
|
| 38 |
by remapping the process stack directly at the right place */ |
|
| 39 |
unsigned long x86_stack_size = 512 * 1024; |
|
| 37 | 40 |
unsigned long stktop; |
| 38 | 41 |
|
| 39 | 42 |
void gemu_log(const char *fmt, ...) |
| ... | ... | |
| 102 | 105 |
|
| 103 | 106 |
void cpu_loop(struct CPUX86State *env) |
| 104 | 107 |
{
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| 108 |
int err; |
|
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uint8_t *pc; |
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target_siginfo_t info; |
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| 111 |
|
|
| 105 | 112 |
for(;;) {
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| 106 |
int err; |
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uint8_t *pc; |
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| 108 |
|
|
| 109 | 113 |
err = cpu_x86_exec(env); |
| 110 | 114 |
pc = env->seg_cache[R_CS].base + env->eip; |
| 111 | 115 |
switch(err) {
|
| ... | ... | |
| 122 | 126 |
env->regs[R_EDI], |
| 123 | 127 |
env->regs[R_EBP]); |
| 124 | 128 |
} else {
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goto trap_error; |
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/* XXX: more precise info */ |
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info.si_signo = SIGSEGV; |
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info.si_errno = 0; |
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info.si_code = 0; |
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info._sifields._sigfault._addr = 0; |
|
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queue_signal(info.si_signo, &info); |
|
| 126 | 135 |
} |
| 127 | 136 |
break; |
| 137 |
case EXCP00_DIVZ: |
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/* division by zero */ |
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info.si_signo = SIGFPE; |
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info.si_errno = 0; |
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info.si_code = TARGET_FPE_INTDIV; |
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info._sifields._sigfault._addr = env->eip; |
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queue_signal(info.si_signo, &info); |
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break; |
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case EXCP04_INTO: |
|
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case EXCP05_BOUND: |
|
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info.si_signo = SIGSEGV; |
|
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info.si_errno = 0; |
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info.si_code = 0; |
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info._sifields._sigfault._addr = 0; |
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queue_signal(info.si_signo, &info); |
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break; |
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case EXCP06_ILLOP: |
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info.si_signo = SIGILL; |
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info.si_errno = 0; |
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info.si_code = TARGET_ILL_ILLOPN; |
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info._sifields._sigfault._addr = env->eip; |
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queue_signal(info.si_signo, &info); |
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break; |
|
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case EXCP_INTERRUPT: |
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/* just indicate that signals should be handled asap */ |
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break; |
|
| 128 | 163 |
default: |
| 129 |
trap_error: |
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fprintf(stderr, "0x%08lx: Unknown exception %d, aborting\n", |
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fprintf(stderr, "0x%08lx: Unknown exception CPU %d, aborting\n", |
|
| 131 | 165 |
(long)pc, err); |
| 132 | 166 |
abort(); |
| 133 | 167 |
} |
| ... | ... | |
| 144 | 178 |
exit(1); |
| 145 | 179 |
} |
| 146 | 180 |
|
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/* XXX: currently only used for async signals (see signal.c) */ |
|
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CPUX86State *global_env; |
|
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|
|
| 147 | 184 |
int main(int argc, char **argv) |
| 148 | 185 |
{
|
| 149 | 186 |
const char *filename; |
| ... | ... | |
| 199 | 236 |
signal_init(); |
| 200 | 237 |
|
| 201 | 238 |
env = cpu_x86_init(); |
| 239 |
global_env = env; |
|
| 202 | 240 |
|
| 203 | 241 |
/* linux register setup */ |
| 204 | 242 |
env->regs[R_EAX] = regs->eax; |
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