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more exception tests - support for precise exceptions 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@188 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-05-27 23:23:22 +00:00
parent a37904dd86
commit e3b32540df
1 changed files with 52 additions and 23 deletions
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75
tests/test-i386.c
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@ -1063,8 +1063,6 @@ void test_vm86(void)
#endif
jmp_buf jmp_env;
int dump_eip;
int dump_si_addr;
int v1;
int tab[2];
@ -1074,23 +1072,21 @@ void sig_handler(int sig, siginfo_t *info, void *puc)
printf("si_signo=%d si_errno=%d si_code=%d",
info->si_signo, info->si_errno, info->si_code);
if (dump_si_addr) {
printf(" si_addr=0x%08lx",
(unsigned long)info->si_addr);
}
printf(" si_addr=0x%08lx",
(unsigned long)info->si_addr);
printf("\n");
printf("trapno=0x%02x err=0x%08x",
uc->uc_mcontext.gregs[REG_TRAPNO],
uc->uc_mcontext.gregs[REG_ERR]);
if (dump_eip)
printf(" EIP=0x%08x", uc->uc_mcontext.gregs[REG_EIP]);
printf(" EIP=0x%08x", uc->uc_mcontext.gregs[REG_EIP]);
printf("\n");
longjmp(jmp_env, 1);
}
void test_exceptions(void)
{
struct modify_ldt_ldt_s ldt;
struct sigaction act;
volatile int val;
@ -1100,20 +1096,18 @@ void test_exceptions(void)
sigaction(SIGFPE, &act, NULL);
sigaction(SIGILL, &act, NULL);
sigaction(SIGSEGV, &act, NULL);
sigaction(SIGBUS, &act, NULL);
sigaction(SIGTRAP, &act, NULL);
/* test division by zero reporting */
dump_eip = 0;
dump_si_addr = 0;
printf("DIVZ exception (currently imprecise):\n");
printf("DIVZ exception:\n");
if (setjmp(jmp_env) == 0) {
/* now divide by zero */
v1 = 0;
v1 = 2 / v1;
}
dump_si_addr = 1;
printf("BOUND exception (currently imprecise):\n");
printf("BOUND exception:\n");
if (setjmp(jmp_env) == 0) {
/* bound exception */
tab[0] = 1;
@ -1121,27 +1115,50 @@ void test_exceptions(void)
asm volatile ("bound %0, %1" : : "r" (11), "m" (tab));
}
/* test SEGV reporting */
printf("PF exception (currently imprecise):\n");
printf("segment exceptions:\n");
if (setjmp(jmp_env) == 0) {
/* load an invalid segment */
asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 1));
}
if (setjmp(jmp_env) == 0) {
/* null data segment is valid */
asm volatile ("movl %0, %%fs" : : "r" (3));
/* null stack segment */
asm volatile ("movl %0, %%ss" : : "r" (3));
}
ldt.entry_number = 1;
ldt.base_addr = (unsigned long)&seg_data1;
ldt.limit = (sizeof(seg_data1) + 0xfff) >> 12;
ldt.seg_32bit = 1;
ldt.contents = MODIFY_LDT_CONTENTS_DATA;
ldt.read_exec_only = 0;
ldt.limit_in_pages = 1;
ldt.seg_not_present = 1;
ldt.useable = 1;
modify_ldt(1, &ldt, sizeof(ldt)); /* write ldt entry */
if (setjmp(jmp_env) == 0) {
/* segment not present */
asm volatile ("movl %0, %%fs" : : "r" (MK_SEL(1)));
}
/* test SEGV reporting */
printf("PF exception:\n");
if (setjmp(jmp_env) == 0) {
val = 1;
/* now store in an invalid address */
*(char *)0x1234 = 1;
}
/* test SEGV reporting */
printf("PF exception (currently imprecise):\n");
printf("PF exception:\n");
if (setjmp(jmp_env) == 0) {
val = 1;
/* read from an invalid address */
v1 = *(char *)0x1234;
}
printf("segment GPF exception (currently imprecise):\n");
if (setjmp(jmp_env) == 0) {
/* load an invalid segment */
asm volatile ("movl %0, %%fs" : : "r" ((0x1234 << 3) | 0));
}
dump_eip = 1;
/* test illegal instruction reporting */
printf("UD2 exception:\n");
if (setjmp(jmp_env) == 0) {
@ -1153,6 +1170,18 @@ void test_exceptions(void)
if (setjmp(jmp_env) == 0) {
asm volatile ("int $0xfd");
}
if (setjmp(jmp_env) == 0) {
asm volatile ("int $0x01");
}
if (setjmp(jmp_env) == 0) {
asm volatile (".byte 0xcd, 0x03");
}
if (setjmp(jmp_env) == 0) {
asm volatile ("int $0x04");
}
if (setjmp(jmp_env) == 0) {
asm volatile ("int $0x05");
}
printf("INT3 exception:\n");
if (setjmp(jmp_env) == 0) {