Revision a69d83b6 tests/testsig.c
| b/tests/testsig.c | ||
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| 26 | 26 |
#define REG_ESP ESP |
| 27 | 27 |
#define REG_EIP EIP |
| 28 | 28 |
#define REG_EFL EFL |
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#define REG_TRAPNO TRAPNO |
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#define REG_ERR ERR |
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#endif |
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void dump_regs(struct ucontext *uc) |
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{
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printf("EAX=%08x EBX=%08x ECX=%08x EDX=%08x\n"
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"ESI=%08x EDI=%08x EBP=%08x ESP=%08x\n" |
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"EFL=%08x EIP=%08x\n", |
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"EFL=%08x EIP=%08x trapno=%02x err=%08x\n",
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uc->uc_mcontext.gregs[REG_EAX], |
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uc->uc_mcontext.gregs[REG_EBX], |
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uc->uc_mcontext.gregs[REG_ECX], |
| ... | ... | |
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uc->uc_mcontext.gregs[REG_EBP], |
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uc->uc_mcontext.gregs[REG_ESP], |
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uc->uc_mcontext.gregs[REG_EFL], |
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uc->uc_mcontext.gregs[REG_EIP]); |
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uc->uc_mcontext.gregs[REG_EIP], |
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uc->uc_mcontext.gregs[REG_TRAPNO], |
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uc->uc_mcontext.gregs[REG_ERR]); |
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} |
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|
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void sig_handler(int sig, siginfo_t *info, void *puc) |
| ... | ... | |
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} |
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int v1; |
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int tab[2]; |
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int main(int argc, char **argv) |
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{
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struct sigaction act; |
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int i;
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int val;
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act.sa_sigaction = sig_handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = SA_SIGINFO; |
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sigaction(SIGFPE, &act, NULL); |
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sigaction(SIGILL, &act, NULL); |
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sigaction(SIGSEGV, &act, NULL); |
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|
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/* test division by zero reporting */ |
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if (setjmp(jmp_env) == 0) {
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act.sa_sigaction = sig_handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = SA_SIGINFO | SA_ONESHOT; |
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sigaction(SIGFPE, &act, NULL); |
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|
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/* now divide by zero */ |
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v1 = 0; |
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v1 = 2 / v1; |
| ... | ... | |
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|
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/* test illegal instruction reporting */ |
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if (setjmp(jmp_env) == 0) {
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act.sa_sigaction = sig_handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = SA_SIGINFO | SA_ONESHOT; |
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sigaction(SIGILL, &act, NULL); |
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|
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/* now execute an invalid instruction */ |
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asm volatile("ud2");
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} |
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/* test SEGV reporting */ |
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if (setjmp(jmp_env) == 0) {
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act.sa_sigaction = sig_handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = SA_SIGINFO | SA_ONESHOT; |
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sigaction(SIGSEGV, &act, NULL); |
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|
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/* now store in an invalid address */ |
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*(char *)0x1234 = 1; |
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} |
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/* test SEGV reporting */ |
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if (setjmp(jmp_env) == 0) {
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/* read from an invalid address */ |
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v1 = *(char *)0x1234; |
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} |
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act.sa_handler = alarm_handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = 0; |
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sigaction(SIGALRM, &act, NULL); |
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alarm(1); |
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for(i = 0;i < 2; i++) {
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sleep(1); |
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printf("segment GPF exception:\n");
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if (setjmp(jmp_env) == 0) {
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/* load an invalid segment */ |
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asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 0));
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} |
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printf("INT exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("int $0xfd");
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} |
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printf("CLI exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("cli");
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} |
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printf("STI exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("cli");
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} |
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printf("INTO exception:\n");
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if (setjmp(jmp_env) == 0) {
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/* overflow exception */ |
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asm volatile ("addl $1, %0 ; into" : : "r" (0x7fffffff));
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} |
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printf("BOUND exception:\n");
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if (setjmp(jmp_env) == 0) {
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/* bound exception */ |
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tab[0] = 1; |
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tab[1] = 10; |
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asm volatile ("bound %0, %1" : : "r" (11), "m" (tab));
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} |
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printf("OUTB exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("outb %%al, %%dx" : : "d" (0x4321), "a" (0));
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} |
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printf("INB exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("inb %%dx, %%al" : "=a" (val) : "d" (0x4321));
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} |
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printf("REP OUTSB exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("rep outsb" : : "d" (0x4321), "S" (tab), "c" (1));
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} |
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printf("REP INSB exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("rep insb" : : "d" (0x4321), "D" (tab), "c" (1));
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} |
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printf("HLT exception:\n");
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if (setjmp(jmp_env) == 0) {
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asm volatile ("hlt" : : "d" (0x4321), "D" (tab), "c" (1));
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} |
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#if 0 |
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{
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int i; |
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act.sa_handler = alarm_handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = 0; |
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sigaction(SIGALRM, &act, NULL); |
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alarm(1); |
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for(i = 0;i < 2; i++) {
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sleep(1); |
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} |
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} |
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#endif |
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return 0; |
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} |
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