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ntdll: Extend debugger tests. 

Shows that second chance handler gets the same modified context as the exception handlers.
This commit is contained in:
Peter Oberndorfer 2007-02-26 23:42:12 +01:00 committed by Alexandre Julliard
parent 647d0d9b88
commit ce6f221db8
1 changed files with 68 additions and 9 deletions
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77
dlls/ntdll/tests/exception.c
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@ -38,6 +38,7 @@
#ifdef __i386__
static int my_argc;
static char** my_argv;
static int test_stage;
static struct _TEB * (WINAPI *pNtCurrentTeb)(void);
static NTSTATUS (WINAPI *pNtGetContextThread)(HANDLE,CONTEXT*);
@ -261,6 +262,11 @@ static DWORD rtlraiseexception_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTR
ok(context->Eax == 0xf00f00f0, "Eax is %x, should have been set to 0xf00f00f0 in vectored handler\n",
context->Eax);
/* give the debugger a chance to examine the state a second time */
/* without the exception handler changing Eip */
if (test_stage == 2)
return ExceptionContinueSearch;
/* Eip in context is decreased by 1
* Increase it again, else execution will continue in the middle of a instruction */
if(rec->ExceptionCode == EXCEPTION_BREAKPOINT && (context->Eip == (DWORD)code_mem + 0xa))
@ -621,11 +627,15 @@ static void test_debugger(void)
else if (de.dwDebugEventCode == EXCEPTION_DEBUG_EVENT)
{
CONTEXT ctx;
int stage;
counter++;
status = pNtReadVirtualMemory(pi.hProcess, &code_mem, &code_mem_address,
sizeof(code_mem_address), &size_read);
ok(!status,"NtReadVirtualMemory failed with 0x%x\n", status);
status = pNtReadVirtualMemory(pi.hProcess, &test_stage, &stage,
sizeof(stage), &size_read);
ok(!status,"NtReadVirtualMemory failed with 0x%x\n", status);
ctx.ContextFlags = CONTEXT_FULL;
status = pNtGetContextThread(pi.hThread, &ctx);
@ -642,17 +652,61 @@ static void test_debugger(void)
}
else if (counter >= 2) /* skip startup breakpoint */
{
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at %x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* setting the context from debugger does not affect the context, the exception handlers gets */
/* uncomment once wine is fixed */
/* ctx.Eip = 0x12345; */
ctx.Eax = 0xf00f00f1;
if (stage == 1)
{
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at %x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* setting the context from debugger does not affect the context, the exception handlers gets */
/* uncomment once wine is fixed */
/* ctx.Eip = 0x12345; */
ctx.Eax = 0xf00f00f1;
/* let the debuggee handle the exception */
continuestatus = DBG_EXCEPTION_NOT_HANDLED;
}
else if (stage == 2)
{
if (de.u.Exception.dwFirstChance)
{
/* debugger gets first chance exception with unmodified ctx.Eip */
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at 0x%x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* setting the context from debugger does not affect the context, the exception handlers gets */
/* uncomment once wine is fixed */
/* ctx.Eip = 0x12345; */
ctx.Eax = 0xf00f00f1;
/* pass exception to debuggee
* exception will not be handled and
* a second chance exception will be raised */
continuestatus = DBG_EXCEPTION_NOT_HANDLED;
}
else
{
/* debugger gets context after exception handler has played with it */
/* ctx.Eip is the same value the exception handler got */
if (de.u.Exception.ExceptionRecord.ExceptionCode == EXCEPTION_BREAKPOINT)
{
todo_wine{
ok((char *)ctx.Eip == (char *)code_mem_address + 0xa, "Eip at 0x%x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xa);
}
/* need to fixup Eip for debuggee */
if ((char *)ctx.Eip == (char *)code_mem_address + 0xa)
ctx.Eip += 1;
}
else
ok((char *)ctx.Eip == (char *)code_mem_address + 0xb, "Eip at 0x%x instead of %p\n",
ctx.Eip, (char *)code_mem_address + 0xb);
/* here we handle exception */
}
}
else
ok(FALSE, "unexpected stage %d\n", stage);
status = pNtSetContextThread(pi.hThread, &ctx);
ok(!status, "NtSetContextThread failed with 0x%x\n", status);
if (de.u.Exception.dwFirstChance)
continuestatus = DBG_EXCEPTION_NOT_HANDLED;
}
}
@ -711,6 +765,11 @@ START_TEST(exception)
if (pRtlRaiseException)
{
test_stage = 1;
run_rtlraiseexception_test(0x12345);
run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
test_stage = 2;
run_rtlraiseexception_test(0x12345);
run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);