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Clean up catch.c

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svn path=/trunk/; revision=14387
This commit is contained in:
Alex Ionescu 2005-03-31 13:52:49 +00:00
parent 8df3d41437
commit fd13cf7e83
1 changed files with 27 additions and 13 deletions
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40
reactos/ntoskrnl/ke/catch.c
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@ -4,7 +4,8 @@
* FILE: ntoskrnl/ke/catch.c * FILE: ntoskrnl/ke/catch.c
* PURPOSE: Exception handling * PURPOSE: Exception handling
* *
* PROGRAMMERS: David Welch (welch@mcmail.com) * PROGRAMMERS: Anich Gregor
* David Welch (welch@mcmail.com)
* Casper S. Hornstrup (chorns@users.sourceforge.net) * Casper S. Hornstrup (chorns@users.sourceforge.net)
*/ */
@ -18,7 +19,7 @@
ULONG ULONG
RtlpDispatchException(IN PEXCEPTION_RECORD ExceptionRecord, RtlpDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
IN PCONTEXT Context); IN PCONTEXT Context);
/* /*
* @unimplemented * @unimplemented
@ -56,13 +57,15 @@ KiDispatchException(PEXCEPTION_RECORD ExceptionRecord,
/* Increase number of Exception Dispatches */ /* Increase number of Exception Dispatches */
KeGetCurrentPrcb()->KeExceptionDispatchCount++; KeGetCurrentPrcb()->KeExceptionDispatchCount++;
if (!Context) { if (!Context)
{
/* Assume Full context */ /* Assume Full context */
TContext.ContextFlags = CONTEXT_FULL; TContext.ContextFlags = CONTEXT_FULL;
/* Check the mode */ /* Check the mode */
if (PreviousMode == UserMode) { if (PreviousMode == UserMode)
{
/* Add Debugger Registers if this is User Mode */ /* Add Debugger Registers if this is User Mode */
TContext.ContextFlags = TContext.ContextFlags | CONTEXT_DEBUGGER; TContext.ContextFlags = TContext.ContextFlags | CONTEXT_DEBUGGER;
@ -76,13 +79,15 @@ KiDispatchException(PEXCEPTION_RECORD ExceptionRecord,
} }
#if 0 /* FIXME: Isn't this right? With a break after? */ #if 0 /* FIXME: Isn't this right? With a break after? */
if (ExceptionRecord->ExceptionCode == STATUS_BREAKPOINT) { if (ExceptionRecord->ExceptionCode == STATUS_BREAKPOINT)
{
Context->Eip--; Context->Eip--;
} }
#endif #endif
/* Check if a Debugger is enabled */ /* Check if a Debugger is enabled */
if (KdDebuggerEnabled && KdDebugState & KD_DEBUG_GDB) { if (KdDebuggerEnabled && KdDebugState & KD_DEBUG_GDB)
{
/* Break into it */ /* Break into it */
Action = KdEnterDebuggerException (ExceptionRecord, Context, Tf); Action = KdEnterDebuggerException (ExceptionRecord, Context, Tf);
@ -92,13 +97,16 @@ KiDispatchException(PEXCEPTION_RECORD ExceptionRecord,
if (Action == kdContinue) return; if (Action == kdContinue) return;
/* If the Debugger couldn't handle it... */ /* If the Debugger couldn't handle it... */
if (Action != kdDoNotHandleException) { if (Action != kdDoNotHandleException)
{
/* See what kind of Exception this is */ /* See what kind of Exception this is */
if (PreviousMode == UserMode) { if (PreviousMode == UserMode)
{
/* User mode exception, search the frames if we have to */ /* User mode exception, search the frames if we have to */
if (SearchFrames) { if (SearchFrames)
{
PULONG Stack; PULONG Stack;
ULONG CDest; ULONG CDest;
@ -140,12 +148,15 @@ KiDispatchException(PEXCEPTION_RECORD ExceptionRecord,
(12 + sizeof(EXCEPTION_RECORD) + sizeof(CONTEXT))); (12 + sizeof(EXCEPTION_RECORD) + sizeof(CONTEXT)));
/* Check for success */ /* Check for success */
if (NT_SUCCESS(StatusOfCopy)) { if (NT_SUCCESS(StatusOfCopy))
{
/* Set new Stack Pointer */ /* Set new Stack Pointer */
Tf->Esp = (ULONG)pNewUserStack; Tf->Esp = (ULONG)pNewUserStack;
} else { }
else
{
/* /*
* Now it really hit the ventilation device. Sorry, * Now it really hit the ventilation device. Sorry,
@ -180,7 +191,9 @@ KiDispatchException(PEXCEPTION_RECORD ExceptionRecord,
DPRINT1("Unhandled UserMode exception, terminating thread\n"); DPRINT1("Unhandled UserMode exception, terminating thread\n");
ZwTerminateThread(NtCurrentThread(), ExceptionRecord->ExceptionCode); ZwTerminateThread(NtCurrentThread(), ExceptionRecord->ExceptionCode);
} else { }
else
{
/* This is Kernel Mode */ /* This is Kernel Mode */
#ifdef KDBG #ifdef KDBG
@ -201,7 +214,8 @@ KiDispatchException(PEXCEPTION_RECORD ExceptionRecord,
/* If RtlpDispatchException() did not handle the exception then bugcheck */ /* If RtlpDispatchException() did not handle the exception then bugcheck */
if (Value != ExceptionContinueExecution || if (Value != ExceptionContinueExecution ||
0 != (ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE)) { 0 != (ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE))
{
DPRINT("ExceptionRecord->ExceptionAddress = 0x%x\n", ExceptionRecord->ExceptionAddress); DPRINT("ExceptionRecord->ExceptionAddress = 0x%x\n", ExceptionRecord->ExceptionAddress);
#ifdef KDBG #ifdef KDBG