diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/test-i386.c | 73 |
1 files changed, 51 insertions, 22 deletions
diff --git a/tests/test-i386.c b/tests/test-i386.c index 4629105c77..39c7a55a74 100644 --- a/tests/test-i386.c +++ b/tests/test-i386.c @@ -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)); } + 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 (currently imprecise):\n"); + 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) { |