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https://github.com/reactos/reactos.git
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8c002db0c2
- winnt.h: respect WIN32_NO_STATUS for DBG codes. - rtl: change STDCALL to NTAPI - everything else: add precompiled headers where missing, define WIN32_NO_STATUS. svn path=/trunk/; revision=18598
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Runtime Library
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* PURPOSE: User-Mode Exception Support
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* FILE: lib/rtl/exception.c
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* PROGRAMERS: Alex Ionescu (alex@relsoft.net)
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* David Welch <welch@cwcom.net>
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* Skywing <skywing@valhallalegends.com>
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* KJK::Hyperion <noog@libero.it>
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*/
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/* INCLUDES *****************************************************************/
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#include <rtl.h>
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ***************************************************************/
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/*
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* @implemented
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*/
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VOID
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NTAPI
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RtlRaiseException(PEXCEPTION_RECORD ExceptionRecord)
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{
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CONTEXT Context;
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NTSTATUS Status;
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DPRINT1("RtlRaiseException(Status %p)\n", ExceptionRecord);
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/* Capture the context */
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RtlCaptureContext(&Context);
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/* Save the exception address */
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ExceptionRecord->ExceptionAddress = RtlpGetExceptionAddress();
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DPRINT1("ExceptionAddress %p\n", ExceptionRecord->ExceptionAddress);
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/* Write the context flag */
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Context.ContextFlags = CONTEXT_FULL;
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/* Check if we're being debugged (user-mode only) */
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if (!RtlpCheckForActiveDebugger(TRUE))
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{
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/* Raise an exception immediately */
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Status = ZwRaiseException(ExceptionRecord, &Context, TRUE);
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}
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else
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{
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/* Dispatch the exception and check if we should continue */
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if (RtlDispatchException(ExceptionRecord, &Context))
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{
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/* Raise the exception */
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Status = ZwRaiseException(ExceptionRecord, &Context, FALSE);
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}
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else
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{
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/* Continue, go back to previous context */
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Status = ZwContinue(&Context, FALSE);
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}
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}
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/* If we returned, raise a status */
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RtlRaiseStatus(Status);
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}
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/*
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* @implemented
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*/
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VOID
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NTAPI
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RtlRaiseStatus(NTSTATUS Status)
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{
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EXCEPTION_RECORD ExceptionRecord;
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CONTEXT Context;
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DPRINT1("RtlRaiseStatus(Status 0x%.08x)\n", Status);
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/* Capture the context */
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RtlCaptureContext(&Context);
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/* Add one argument to ESP */
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Context.Esp += sizeof(PVOID);
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/* Create an exception record */
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ExceptionRecord.ExceptionAddress = RtlpGetExceptionAddress();
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ExceptionRecord.ExceptionCode = Status;
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ExceptionRecord.ExceptionRecord = NULL;
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ExceptionRecord.NumberParameters = 0;
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ExceptionRecord.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
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/* Write the context flag */
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Context.ContextFlags = CONTEXT_FULL;
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/* Check if we're being debugged (user-mode only) */
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if (!RtlpCheckForActiveDebugger(TRUE))
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{
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/* Raise an exception immediately */
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ZwRaiseException(&ExceptionRecord, &Context, TRUE);
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}
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else
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{
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/* Dispatch the exception */
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RtlDispatchException(&ExceptionRecord, &Context);
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/* Raise exception if we got here */
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Status = ZwRaiseException(&ExceptionRecord, &Context, FALSE);
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}
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/* If we returned, raise a status */
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RtlRaiseStatus(Status);
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}
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/*
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* @unimplemented
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*/
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USHORT
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NTAPI
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RtlCaptureStackBackTrace(IN ULONG FramesToSkip,
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IN ULONG FramesToCapture,
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OUT PVOID *BackTrace,
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OUT PULONG BackTraceHash OPTIONAL)
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{
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UNIMPLEMENTED;
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return 0;
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}
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/*
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* @unimplemented
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*/
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ULONG
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NTAPI
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RtlWalkFrameChain(OUT PVOID *Callers,
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IN ULONG Count,
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IN ULONG Flags)
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{
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UNIMPLEMENTED;
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return 0;
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}
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/* EOF */
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