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ntdll/tests: Add more debug register tests.

This commit is contained in:
Grazvydas Ignotas 2011-07-15 23:19:09 +03:00 committed by Alexandre Julliard
parent c1fbf00d2c
commit 382d953872
1 changed files with 51 additions and 12 deletions
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63
dlls/ntdll/tests/exception.c
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@ -474,20 +474,50 @@ static void test_prot_fault(void)
}
}
struct dbgreg_test {
DWORD dr0, dr1, dr2, dr3, dr6, dr7;
};
/* test handling of debug registers */
static DWORD dreg_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
const struct dbgreg_test *test = *(const struct dbgreg_test **)(frame + 1);
context->Eip += 2; /* Skips the popl (%eax) */
context->Dr0 = 0x42424242;
context->Dr1 = 0;
context->Dr2 = 0;
context->Dr3 = 0;
context->Dr6 = 0;
context->Dr7 = 0x155;
context->Dr0 = test->dr0;
context->Dr1 = test->dr1;
context->Dr2 = test->dr2;
context->Dr3 = test->dr3;
context->Dr6 = test->dr6;
context->Dr7 = test->dr7;
return ExceptionContinueExecution;
}
#define CHECK_DEBUG_REG(n, m) \
ok((ctx.Dr##n & m) == test->dr##n, "(%d) failed to set debug register " #n " to %x, got %x\n", \
test_num, test->dr##n, ctx.Dr##n)
static void check_debug_registers(int test_num, const struct dbgreg_test *test)
{
CONTEXT ctx;
NTSTATUS status;
ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
status = pNtGetContextThread(GetCurrentThread(), &ctx);
ok(status == STATUS_SUCCESS, "NtGetContextThread failed with %x\n", status);
CHECK_DEBUG_REG(0, ~0);
CHECK_DEBUG_REG(1, ~0);
if (test_num == 2) todo_wine
CHECK_DEBUG_REG(2, ~0);
if (test_num == 2) todo_wine
CHECK_DEBUG_REG(3, ~0);
CHECK_DEBUG_REG(6, 0x0f);
if (test_num == 2) todo_wine
CHECK_DEBUG_REG(7, ~0xdc00);
}
static const BYTE segfault_code[5] = {
0x31, 0xc0, /* xor %eax,%eax */
0x8f, 0x00, /* popl (%eax) - cause exception */
@ -644,6 +674,7 @@ static void test_exceptions(void)
{
CONTEXT ctx;
NTSTATUS res;
struct dbgreg_test dreg_test;
if (!pNtGetContextThread || !pNtSetContextThread)
{
@ -652,13 +683,21 @@ static void test_exceptions(void)
}
/* test handling of debug registers */
run_exception_test(dreg_handler, NULL, &segfault_code, sizeof(segfault_code), 0);
memset(&dreg_test, 0, sizeof(dreg_test));
ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
res = pNtGetContextThread(GetCurrentThread(), &ctx);
ok (res == STATUS_SUCCESS,"NtGetContextThread failed with %x\n", res);
ok(ctx.Dr0 == 0x42424242,"failed to set debugregister 0 to 0x42424242, got %x\n", ctx.Dr0);
ok((ctx.Dr7 & ~0xdc00) == 0x155,"failed to set debugregister 7 to 0x155, got %x\n", ctx.Dr7);
dreg_test.dr0 = 0x42424240;
dreg_test.dr2 = 0x126bb070;
dreg_test.dr3 = 0x0badbad0;
dreg_test.dr7 = 0xffff0115;
run_exception_test(dreg_handler, &dreg_test, &segfault_code, sizeof(segfault_code), 0);
check_debug_registers(1, &dreg_test);
dreg_test.dr0 = 0x42424242;
dreg_test.dr2 = 0x100f0fe7;
dreg_test.dr3 = 0x0abebabe;
dreg_test.dr7 = 0x115;
run_exception_test(dreg_handler, &dreg_test, &segfault_code, sizeof(segfault_code), 0);
check_debug_registers(2, &dreg_test);
/* test single stepping behavior */
got_exception = 0;