sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Kernel Event handler for Run Mode Debug.
sl@0: //
sl@0: 
sl@0: #include <e32def.h>
sl@0: #include <e32def_private.h>
sl@0: #include <e32cmn.h>
sl@0: #include <e32cmn_private.h>
sl@0: #include <kernel/arm/arm.h>
sl@0: #include <kernel/kernel.h>
sl@0: #include <kernel/kern_priv.h>
sl@0: #include <nk_trace.h>
sl@0: 
sl@0: #include <rm_debug_api.h>
sl@0: #include "debug_logging.h"
sl@0: #include "d_process_tracker.h"
sl@0: #include "d_rmd_stepping.h"
sl@0: #include "rm_debug_kerneldriver.h"
sl@0: #include "rm_debug_driver.h"
sl@0: #include "rm_debug_eventhandler.h"
sl@0: 
sl@0: 
sl@0: DRM_DebugEventHandler::DRM_DebugEventHandler()
sl@0: 	:	DKernelEventHandler(EventHandler, this)
sl@0: {
sl@0: 	LOG_MSG("DRM_DebugEventHandler::DRM_DebugEventHandler()");
sl@0: 
sl@0: 	for(TInt i=0; i<EEventLimit; i++)
sl@0: 		{
sl@0: 		iEventHandlers[i] = &DRM_DebugChannel::HandleUnsupportedEvent;
sl@0: 		}
sl@0: 	iEventHandlers[EEventUserTrace] = &DRM_DebugChannel::HandleUserTrace;
sl@0: 	iEventHandlers[EEventRemoveLibrary] = &DRM_DebugChannel::RemoveLibrary;
sl@0: 	iEventHandlers[EEventAddLibrary] = &DRM_DebugChannel::AddLibrary;
sl@0: 	iEventHandlers[EEventRemoveProcess] = &DRM_DebugChannel::RemoveProcess;
sl@0: 	iEventHandlers[EEventStartThread] = &DRM_DebugChannel::StartThread;
sl@0: 	iEventHandlers[EEventSwExc] = &DRM_DebugChannel::HandleSwException;
sl@0: 	iEventHandlers[EEventHwExc] = &DRM_DebugChannel::HandleHwException;
sl@0: 	iEventHandlers[EEventKillThread] = &DRM_DebugChannel::HandleEventKillThread;
sl@0: 	iEventHandlers[EEventAddProcess] = &DRM_DebugChannel::HandleAddProcessEvent;
sl@0: 	iEventHandlers[EEventRemoveProcess] = &DRM_DebugChannel::HandleRemoveProcessEvent;
sl@0: }
sl@0: 
sl@0: TInt DRM_DebugEventHandler::Create(DLogicalDevice* aDevice, DLogicalChannel* aChannel, DThread* aClient)
sl@0: {
sl@0: 	LOG_MSG("DRM_DebugEventHandler::Create()");
sl@0: 
sl@0: 	TInt err;
sl@0: 	err = aDevice->Open();
sl@0: 	if (err != KErrNone)
sl@0: 		return err;
sl@0: 	iDevice = aDevice;
sl@0: 	
sl@0: 	iChannel = (DRM_DebugChannel*)aChannel; //Don't add ref the channel, since channel closes the event handler before it ever gets destroyed.
sl@0: 
sl@0: 	err = aClient->Open();
sl@0: 	if (err != KErrNone)
sl@0: 		return err;
sl@0: 	iClientThread = aClient;
sl@0: 
sl@0: 	// Use a semaphore to protect our data structures from concurrent access.
sl@0: 	err = Kern::SemaphoreCreate(iLock, _L("RM_DebugEventHandlerLock"), 1 /* Initial count */);
sl@0: 	if (err != KErrNone)
sl@0: 		return err;
sl@0: 
sl@0: 
sl@0: 	return Add();
sl@0: }
sl@0: 
sl@0: 
sl@0: DRM_DebugEventHandler::~DRM_DebugEventHandler()
sl@0: {
sl@0: 	LOG_MSG("DRM_DebugEventHandler::~DRM_DebugEventHandler()");
sl@0: 
sl@0: 	if (iLock)
sl@0: 		iLock->Close(NULL);
sl@0: 	
sl@0: 	if (iDevice)
sl@0: 		iDevice->Close(NULL);	
sl@0: 	
sl@0: 	if (iClientThread)
sl@0: 		Kern::SafeClose((DObject*&)iClientThread, NULL);
sl@0: 		
sl@0: }
sl@0: 
sl@0: 
sl@0: TInt DRM_DebugEventHandler::Start()
sl@0: {
sl@0: 	LOG_MSG("DRM_DebugEventHandler::Start()");
sl@0: 
sl@0: 	iTracking = ETrue;
sl@0: 
sl@0: 	return KErrNone;
sl@0: }
sl@0: 
sl@0: 
sl@0: TInt DRM_DebugEventHandler::Stop()
sl@0: {
sl@0: 	LOG_MSG("DRM_DebugEventHandler::Stop()");
sl@0: 
sl@0: 	iTracking = EFalse;
sl@0: 
sl@0: 	return KErrNone;
sl@0: }
sl@0: 
sl@0: 
sl@0: TUint DRM_DebugEventHandler::EventHandler(TKernelEvent aType, TAny* a1, TAny* a2, TAny* aThis)
sl@0: {
sl@0: 	return ((DRM_DebugEventHandler*)aThis)->HandleEvent(aType, a1, a2);
sl@0: }
sl@0: 
sl@0: 
sl@0: 
sl@0: TUint DRM_DebugEventHandler::HandleEvent(TKernelEvent aType, TAny* a1, TAny* a2)
sl@0: 	{
sl@0: 	if((!iTracking) || (aType > (TUint32)EEventLimit))
sl@0: 		{
sl@0: 		return ERunNext;
sl@0: 		}
sl@0: 	return HandleSpecificEvent(aType,a1,a2) ? EExcHandled : ERunNext;
sl@0: 	}
sl@0: 
sl@0: TBool DRM_DebugEventHandler::HandleSpecificEvent(TKernelEvent aType, TAny* a1, TAny* a2)
sl@0: 	{
sl@0: 	TBool ret = EFalse;
sl@0: 
sl@0: 	NKern::ThreadEnterCS();
sl@0: 	Kern::SemaphoreWait(*iLock);
sl@0: 	
sl@0: 	if (iChannel)
sl@0: 		{
sl@0: 		ret = (iChannel->*(iEventHandlers[aType]))(a1, a2);
sl@0: 		}
sl@0: 
sl@0: 	Kern::SemaphoreSignal(*iLock);
sl@0: 	NKern::ThreadLeaveCS();
sl@0: 
sl@0: 	switch(aType)
sl@0: 		{
sl@0: 		case EEventHwExc:
sl@0: 		case EEventKillThread:
sl@0: 			{
sl@0: 			LOG_MSG2("DRM_DebugEventHandler::HandleEvent() -> FSWait(), kernel event type: %d", (TUint32)aType);
sl@0: 			TheDProcessTracker.FSWait();
sl@0: 			LOG_MSG("DRM_DebugEventHandler::HandleEvent() <- FSWait()");
sl@0: 			break;
sl@0: 			}
sl@0: 		default:
sl@0: 			break;
sl@0: 		}
sl@0: 	return ret;
sl@0: 	}
sl@0: