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[NTOS]: Sync up KiDispatchException with x86 code (and going back to C comment formatting).

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svn path=/trunk/; revision=45509
This commit is contained in:
Sir Richard 2010-02-09 02:00:52 +00:00
parent d685272dc0
commit bf39d09670
1 changed files with 52 additions and 70 deletions
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122
reactos/ntoskrnl/ke/arm/exp.c
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@ -176,67 +176,51 @@ KiDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
IN BOOLEAN FirstChance) IN BOOLEAN FirstChance)
{ {
CONTEXT Context; CONTEXT Context;
// /* Increase number of Exception Dispatches */
// Increase number of Exception Dispatches
//
KeGetCurrentPrcb()->KeExceptionDispatchCount++; KeGetCurrentPrcb()->KeExceptionDispatchCount++;
// /* Set the context flags */
// Set the context flags
//
Context.ContextFlags = CONTEXT_FULL; Context.ContextFlags = CONTEXT_FULL;
// /* Check if User Mode or if the kernel debugger is enabled */
// FIXME-V6: VFP Support if ((PreviousMode == UserMode) || (KeGetPcr()->KdVersionBlock))
// {
/* FIXME-V6: VFP Support */
// }
// Get a Context
// /* Get a Context */
KeTrapFrameToContext(TrapFrame, ExceptionFrame, &Context); KeTrapFrameToContext(TrapFrame, ExceptionFrame, &Context);
// /* Look at our exception code */
// Look at our exception code
//
switch (ExceptionRecord->ExceptionCode) switch (ExceptionRecord->ExceptionCode)
{ {
// /* Breakpoint */
// Breakpoint
//
case STATUS_BREAKPOINT: case STATUS_BREAKPOINT:
// /* Decrement PC by four */
// We want the instruction right before the int 3
//
Context.Pc -= sizeof(ULONG); Context.Pc -= sizeof(ULONG);
break; break;
// /* Internal exception */
// Internal exception
//
case KI_EXCEPTION_ACCESS_VIOLATION: case KI_EXCEPTION_ACCESS_VIOLATION:
// /* Set correct code */
// Set correct code
//
ExceptionRecord->ExceptionCode = STATUS_ACCESS_VIOLATION; ExceptionRecord->ExceptionCode = STATUS_ACCESS_VIOLATION;
if (PreviousMode == UserMode)
{
/* FIXME: Handle no execute */
}
break; break;
} }
// /* Handle kernel-mode first, it's simpler */
// Handle kernel-mode first, it's simpler
//
if (PreviousMode == KernelMode) if (PreviousMode == KernelMode)
{ {
// /* Check if this is a first-chance exception */
// Check if this is a first-chance exception
//
if (FirstChance == TRUE) if (FirstChance == TRUE)
{ {
// /* Break into the debugger for the first time */
// Break into the debugger for the first time
//
if (KiDebugRoutine(TrapFrame, if (KiDebugRoutine(TrapFrame,
ExceptionFrame, ExceptionFrame,
ExceptionRecord, ExceptionRecord,
@ -244,21 +228,15 @@ KiDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
PreviousMode, PreviousMode,
FALSE)) FALSE))
{ {
// /* Exception was handled */
// Exception was handled
//
goto Handled; goto Handled;
} }
// /* If the Debugger couldn't handle it, dispatch the exception */
// If the Debugger couldn't handle it, dispatch the exception
//
if (RtlDispatchException(ExceptionRecord, &Context)) goto Handled; if (RtlDispatchException(ExceptionRecord, &Context)) goto Handled;
} }
// /* This is a second-chance exception, only for the debugger */
// This is a second-chance exception, only for the debugger
//
if (KiDebugRoutine(TrapFrame, if (KiDebugRoutine(TrapFrame,
ExceptionFrame, ExceptionFrame,
ExceptionRecord, ExceptionRecord,
@ -266,15 +244,11 @@ KiDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
PreviousMode, PreviousMode,
TRUE)) TRUE))
{ {
// /* Exception was handled */
// Exception was handled
//
goto Handled; goto Handled;
} }
// /* Third strike; you're out */
// Third strike; you're out
//
KeBugCheckEx(KMODE_EXCEPTION_NOT_HANDLED, KeBugCheckEx(KMODE_EXCEPTION_NOT_HANDLED,
ExceptionRecord->ExceptionCode, ExceptionRecord->ExceptionCode,
(ULONG_PTR)ExceptionRecord->ExceptionAddress, (ULONG_PTR)ExceptionRecord->ExceptionAddress,
@ -283,19 +257,27 @@ KiDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
} }
else else
{ {
// /* FIXME: TODO */
// FIXME-USER: Do user-mode exception handling /* 3rd strike, kill the process */
// DPRINT1("Kill %.16s, ExceptionCode: %lx, ExceptionAddress: %lx\n",
ASSERT(FALSE); PsGetCurrentProcess()->ImageFileName,
ExceptionRecord->ExceptionCode,
ExceptionRecord->ExceptionAddress);
ZwTerminateProcess(NtCurrentProcess(), ExceptionRecord->ExceptionCode);
KeBugCheckEx(KMODE_EXCEPTION_NOT_HANDLED,
ExceptionRecord->ExceptionCode,
(ULONG_PTR)ExceptionRecord->ExceptionAddress,
(ULONG_PTR)TrapFrame,
0);
} }
Handled: Handled:
// /* Convert the context back into Trap/Exception Frames */
// Convert the context back into Trap/Exception Frames
//
KeContextToTrapFrame(&Context, KeContextToTrapFrame(&Context,
ExceptionFrame, ExceptionFrame,
TrapFrame, TrapFrame,
Context.ContextFlags, Context.ContextFlags,
PreviousMode); PreviousMode);
return;
} }