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// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32test\debug\d_eventtracker.cpp
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// LDD-based debug agent used to track kernel events. See
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// t_eventtracker.cpp
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//
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//
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#include <kernel/kern_priv.h>
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#include "reventtracker.h"
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#include "d_eventtracker.h"
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#include "nk_trace.h"
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#ifdef __MARM__
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#include <kernel/kdebug.h>
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#endif //__MARM__
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#ifdef _DEBUG
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static const char KPanicCat[] = "D_EVENTTRACKER";
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#endif // _DEBUG
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_LIT(KClientPanicCat, "D_EVENTTRACKER");
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DEventTracker* TheEventTracker;
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//////////////////////////////////////////////////////////////////////////////
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/** Data about objects being tracked.
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All tracked objects are kept in a tracking list. The object address
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is a key and so must be unique.
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*/
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TTrackedItem::TTrackedItem(const DBase* aObject)
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: iObject(aObject), iAccountedFor(EFalse)
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{
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}
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/** Subclass for DObjects being tracked */
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TTrackedObject::TTrackedObject(DObject* aObject, TObjectType aType)
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: TTrackedItem(aObject),
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iType(aType)
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{
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aObject->FullName(iFullName);
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}
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TBool TTrackedObject::CheckIntegrity(const TDesC& aName, TObjectType aType) const
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{
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TBool ok = EFalse;
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if (aType == iType)
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{
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if (aType == EThread || aType == EProcess)
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{
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ok = (iFullName == aName);
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}
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else
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{
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ok = ETrue;
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}
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}
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if (!ok)
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{
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Kern::Printf("EVENTTRACKER: container / tracking list mismatch (0x%08x)", iObject);
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Kern::Printf("EVENTTRACKER: \tcontainer: %S (type %d)", &aName, aType);
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Kern::Printf("EVENTTRACKER: \ttracking list: %S (type %d)", &iFullName, iType);
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}
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return ok;
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}
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/** Subclass for DCodeSegs being tracked */
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TTrackedCodeSeg::TTrackedCodeSeg(const DCodeSeg* aCodeSeg)
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: TTrackedItem(aCodeSeg),
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iAccessCount(aCodeSeg ? aCodeSeg->iAccessCount : 0)
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{
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}
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TBool TTrackedCodeSeg::CheckIntegrity(TInt aAccessCount) const
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{
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const TBool ok = (aAccessCount == iAccessCount);
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if (!ok)
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{
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Kern::Printf("EVENTTRACKER: code seg list / tracking list mismatch (0x%08x)", iObject);
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Kern::Printf("EVENTTRACKER: \tcode seg list: %d", aAccessCount);
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Kern::Printf("EVENTTRACKER: \ttracking list: %d", iAccessCount);
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}
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return ok;
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}
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/** Event handler and container for all objects being tracked. */
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DEventTracker::DEventTracker()
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: DKernelEventHandler(EventHandler, this)
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{
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__ASSERT_DEBUG(!TheEventTracker, Kern::Fault(KPanicCat, __LINE__));
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TheEventTracker = this;
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}
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//
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// If aUseHook is true, the event tracker hooks the stop-mode debugger
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// breakpoint in preference to adding itself to the kernel event handler
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// queue. In order to clean up on its destruction, it has to
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// reset the breakpoint by installing a dummy nop breakpoint
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// handler, which is cut-and-pasted from kdebug.dll in order to
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// avoid a dependency on kdebug.dll. In order to use the event
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// tracker using the stop-mode debugger breakpoint rather than
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// the kernel event handler queue, kdebug.dll must be present in
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// the ROM
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//
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TInt DEventTracker::Create(DLogicalDevice* aDevice, TBool aUseHook)
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{
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TInt err = aDevice->Open();
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if (err)
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{
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return err;
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}
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iDevice = aDevice;
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err = Kern::MutexCreate(iLock, _L("EventHandlerLock"), KMutexOrdNone);
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if (!err)
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{
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if (aUseHook)
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{
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// Find debugger info, if any
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DDebuggerInfo* const debugInfo = Kern::SuperPage().iDebuggerInfo;
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// Test stop-mode breakpoint if available
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if (debugInfo)
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{
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#ifdef __MARM__
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// Receive all events
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for (TInt i = 0; i < ((EEventLimit + 31) >> 5); ++i)
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{
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debugInfo->iEventMask[i] = 0xffffffffu;
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}
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Copying breakpoint (0x%x) into handler (0x%x), size %d", &BranchToEventHandler, debugInfo->iEventHandlerBreakpoint, BreakPointSize()));
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// Set up breakpoint to call handler
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memcpy((TAny*)debugInfo->iEventHandlerBreakpoint, (TAny*) &BranchToEventHandler, BreakPointSize());
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#else // !__MARM__
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err = KErrNotFound;
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#endif // __MARM__
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}
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else
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{
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err = KErrNotFound;
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}
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}
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else
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{
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err = Add();
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}
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}
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return err;
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}
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DEventTracker::~DEventTracker()
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{
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#ifdef __MARM__
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// Remove breakpoint, if any
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DDebuggerInfo* const debugInfo = Kern::SuperPage().iDebuggerInfo;
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if (debugInfo)
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{
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CopyDummyHandler(debugInfo->iEventHandlerBreakpoint);
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}
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#endif //__MARM__
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// clean-up tracking list
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SDblQueLink* link = iItems.GetFirst();
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while (link)
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{
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delete _LOFF(link, TTrackedItem, iLink);
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link = iItems.GetFirst();
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}
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if (iLock)
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{
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iLock->Close(NULL);
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}
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if (iDevice)
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{
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iDevice->Close(NULL);
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}
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TheEventTracker = NULL;
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}
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TInt DEventTracker::Start()
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{
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TInt err = AddExistingObjects();
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if (!err)
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{
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iTracking = ETrue;
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}
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return err;
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}
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TInt DEventTracker::Stop()
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{
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iLock);
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iTracking = EFalse;
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Kern::MutexSignal(*iLock);
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NKern::ThreadLeaveCS();
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DumpCounters();
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return CheckIntegrity();
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}
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TUint DEventTracker::EventHandler(TKernelEvent aType, TAny* a1, TAny* a2, TAny* aThis)
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{
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return ((DEventTracker*)aThis)->HandleEvent(aType, a1, a2);
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}
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TUint DEventTracker::HandleEvent(TKernelEvent aType, TAny* a1, TAny* a2)
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{
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Handling event type 0x%x", aType));
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Kern::MutexWait(*iLock);
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if (iTracking)
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{
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++iCounters[aType];
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switch (aType)
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{
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case EEventAddProcess:
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AddObject(EProcess, (DObject*)a1);
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break;
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case EEventUpdateProcess:
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// could be renaming or chunk addition/deletion
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UpdateObject(EProcess, (DObject*)a1, EFalse);
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break;
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case EEventRemoveProcess:
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RemoveObject(EProcess, (DObject*)a1);
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break;
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case EEventAddThread:
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AddObject(EThread, (DObject*)a1);
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break;
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case EEventUpdateThread:
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UpdateObject(EThread, (DObject*)a1, ETrue);
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break;
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case EEventRemoveThread:
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RemoveObject(EThread, (DObject*)a1);
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break;
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case EEventAddLibrary:
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{
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DLibrary* pL = (DLibrary*)a1;
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if (pL->iMapCount == 1)
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AddObject(ELibrary, pL);
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}
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break;
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case EEventRemoveLibrary:
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{
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DLibrary* pL = (DLibrary*)a1;
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if (pL->iMapCount == 0)
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RemoveObject(ELibrary, pL);
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}
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break;
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case EEventNewChunk:
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AddObject(EChunk, (DObject*)a1);
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break;
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case EEventDeleteChunk:
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RemoveObject(EChunk, (DObject*)a1);
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break;
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case EEventAddCodeSeg:
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{
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AddCodeSeg((DCodeSeg*)a1, (DProcess*)a2);
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}
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break;
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case EEventRemoveCodeSeg:
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{
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RemoveCodeSeg((DCodeSeg*)a1, (DProcess*)a2);
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}
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break;
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case EEventLoadedProcess:
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{
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Process %O loaded", a1));
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ProcessLoaded((DProcess*)a1);
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}
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break;
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case EEventUnloadingProcess:
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Process %O unloaded", a1));
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break;
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default:
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// no-op
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Handling default case"));
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break;
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}
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}
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Kern::MutexSignal(*iLock);
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// Allow other handlers to see this event
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return DKernelEventHandler::ERunNext;
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}
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void DEventTracker::AddObject(TObjectType aType, DObject* aObject)
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{
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TTrackedObject* trackedObject = (TTrackedObject*)LookupItem(aObject);
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if (trackedObject)
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{
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Kern::Printf("EVENTTRACKER: Found orphaned object %O in tracking list while adding new object", aObject);
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++iErrorCount;
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return;
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}
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NKern::ThreadEnterCS();
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trackedObject = new TTrackedObject(aObject, aType);
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NKern::ThreadLeaveCS();
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if (trackedObject)
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{
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Adding %O (type %d) to tracking list", aObject, aType));
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: DBase ptr == 0x%x", trackedObject->iObject));
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iItems.Add(&trackedObject->iLink);
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}
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else
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{
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iOOM = ETrue;
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++iErrorCount;
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}
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}
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void DEventTracker::RemoveObject(TObjectType aType, DObject* aObject)
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{
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TTrackedObject* const trackedObject = (TTrackedObject*)LookupItem(aObject);
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if (trackedObject)
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{
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TFullName name;
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aObject->FullName(name);
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if (!trackedObject->CheckIntegrity(name, aType))
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{
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++iErrorCount;
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}
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__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Removing %S (type %d) from tracking list", &name, aType));
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trackedObject->iLink.Deque();
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NKern::ThreadEnterCS();
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delete trackedObject;
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NKern::ThreadLeaveCS();
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}
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else
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{
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Kern::Printf("EVENTTRACKER: %O (type %d) removed but not in tracking list", aObject, aType);
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|
|
385 |
++iErrorCount;
|
|
|
386 |
}
|
|
|
387 |
}
|
|
|
388 |
|
|
|
389 |
|
|
|
390 |
void DEventTracker::UpdateObject(TObjectType aType, DObject* aObject, TBool aMustBeRenamed)
|
|
|
391 |
{
|
|
|
392 |
TTrackedObject* const trackedObject = (TTrackedObject*)LookupItem(aObject);
|
|
|
393 |
|
|
|
394 |
if (trackedObject)
|
|
|
395 |
{
|
|
|
396 |
TFullName newName;
|
|
|
397 |
aObject->FullName(newName);
|
|
|
398 |
if (newName != trackedObject->iFullName)
|
|
|
399 |
{
|
|
|
400 |
__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Renaming %S --> %S (type %d)",
|
|
|
401 |
&trackedObject->iFullName, &newName));
|
|
|
402 |
trackedObject->iFullName = newName;
|
|
|
403 |
}
|
|
|
404 |
else if (aMustBeRenamed)
|
|
|
405 |
{
|
|
|
406 |
Kern::Printf("EVENTTRACKER: %O (type %d) renamed with same name", aObject, aType);
|
|
|
407 |
++iErrorCount;
|
|
|
408 |
}
|
|
|
409 |
}
|
|
|
410 |
else
|
|
|
411 |
{
|
|
|
412 |
Kern::Printf("EVENTTRACKER: %O (type %d) updated but not in tracking list", aObject, aType);
|
|
|
413 |
Kern::Printf("EVENTTRACKER: DBase ptr == 0x%x", (DBase*)aObject);
|
|
|
414 |
++iErrorCount;
|
|
|
415 |
}
|
|
|
416 |
}
|
|
|
417 |
|
|
|
418 |
void DEventTracker::AddCodeSeg(DCodeSeg* aCodeSeg, DProcess* aProcess)
|
|
|
419 |
{
|
|
|
420 |
TTrackedCodeSeg* trackedCodeSeg = (TTrackedCodeSeg*)LookupItem(aCodeSeg);
|
|
|
421 |
|
|
|
422 |
if (trackedCodeSeg)
|
|
|
423 |
{
|
|
|
424 |
if (aProcess && (aProcess->iTempCodeSeg == aCodeSeg))
|
|
|
425 |
{
|
|
|
426 |
// This is the exe code seg for a loading process
|
|
|
427 |
// and hence the access count is currently
|
|
|
428 |
// incremented by one
|
|
|
429 |
++trackedCodeSeg->iAccessCount;
|
|
|
430 |
}
|
|
|
431 |
|
|
|
432 |
if (trackedCodeSeg->iAccessCount != aCodeSeg->iAccessCount)
|
|
|
433 |
{
|
|
|
434 |
Kern::Printf(
|
|
|
435 |
"EVENTTRACKER: Access count for %C (%d) does not match the tracking list (%d)",
|
|
|
436 |
aCodeSeg,
|
|
|
437 |
aCodeSeg->iAccessCount,
|
|
|
438 |
trackedCodeSeg->iAccessCount
|
|
|
439 |
);
|
|
|
440 |
++iErrorCount;
|
|
|
441 |
return;
|
|
|
442 |
}
|
|
|
443 |
}
|
|
|
444 |
|
|
|
445 |
if (!trackedCodeSeg)
|
|
|
446 |
{
|
|
|
447 |
NKern::ThreadEnterCS();
|
|
|
448 |
trackedCodeSeg = new TTrackedCodeSeg(aCodeSeg);
|
|
|
449 |
NKern::ThreadLeaveCS();
|
|
|
450 |
|
|
|
451 |
if (trackedCodeSeg)
|
|
|
452 |
{
|
|
|
453 |
__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Adding %C to tracking list", aCodeSeg));
|
|
|
454 |
iItems.Add(&trackedCodeSeg->iLink);
|
|
|
455 |
}
|
|
|
456 |
}
|
|
|
457 |
else // trackedCodeSeg
|
|
|
458 |
{
|
|
|
459 |
if (aProcess)
|
|
|
460 |
{
|
|
|
461 |
__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Updating access count for %C (%d), attaching to process %O", aCodeSeg, aCodeSeg->iAccessCount, aProcess));
|
|
|
462 |
}
|
|
|
463 |
else // !aProcess
|
|
|
464 |
{
|
|
|
465 |
Kern::Printf("EVENTTRACKER: Found orphaned code seg %C in tracking list while adding new code seg", aCodeSeg);
|
|
|
466 |
++iErrorCount;
|
|
|
467 |
}
|
|
|
468 |
}
|
|
|
469 |
|
|
|
470 |
if (!trackedCodeSeg)
|
|
|
471 |
{
|
|
|
472 |
iOOM = ETrue;
|
|
|
473 |
++iErrorCount;
|
|
|
474 |
}
|
|
|
475 |
}
|
|
|
476 |
|
|
|
477 |
void DEventTracker::ProcessLoaded(DProcess* aProcess)
|
|
|
478 |
{
|
|
|
479 |
if (aProcess->iCodeSeg)
|
|
|
480 |
{
|
|
|
481 |
TTrackedCodeSeg* trackedCodeSeg = (TTrackedCodeSeg*)LookupItem(aProcess->iCodeSeg);
|
|
|
482 |
|
|
|
483 |
if (trackedCodeSeg)
|
|
|
484 |
{
|
|
|
485 |
// This is the exe code seg for a process that
|
|
|
486 |
// has completed loading and hence the access
|
|
|
487 |
// count has just been decremented by one
|
|
|
488 |
--trackedCodeSeg->iAccessCount;
|
|
|
489 |
}
|
|
|
490 |
}
|
|
|
491 |
}
|
|
|
492 |
|
|
|
493 |
void DEventTracker::RemoveCodeSeg(DCodeSeg* aCodeSeg, DProcess* aProcess)
|
|
|
494 |
{
|
|
|
495 |
TTrackedCodeSeg* const trackedCodeSeg = (TTrackedCodeSeg*)LookupItem(aCodeSeg);
|
|
|
496 |
|
|
|
497 |
if (trackedCodeSeg)
|
|
|
498 |
{
|
|
|
499 |
if (!trackedCodeSeg->CheckIntegrity(aCodeSeg->iAccessCount))
|
|
|
500 |
{
|
|
|
501 |
++iErrorCount;
|
|
|
502 |
}
|
|
|
503 |
|
|
|
504 |
if (aCodeSeg->iAccessCount == 1)
|
|
|
505 |
{
|
|
|
506 |
__KTRACE_OPT(KDEBUGGER, Kern::Printf("EVENTTRACKER: Removing %C from tracking list, process %O", aCodeSeg, aProcess));
|
|
|
507 |
trackedCodeSeg->iLink.Deque();
|
|
|
508 |
|
|
|
509 |
NKern::ThreadEnterCS();
|
|
|
510 |
delete trackedCodeSeg;
|
|
|
511 |
NKern::ThreadLeaveCS();
|
|
|
512 |
}
|
|
|
513 |
}
|
|
|
514 |
else
|
|
|
515 |
{
|
|
|
516 |
Kern::Printf("EVENTTRACKER: %C removed but not in tracking list. Removing from process %O", aCodeSeg, aProcess);
|
|
|
517 |
++iErrorCount;
|
|
|
518 |
}
|
|
|
519 |
}
|
|
|
520 |
|
|
|
521 |
|
|
|
522 |
/** Add all objects from relevant containers into the tracking list. */
|
|
|
523 |
|
|
|
524 |
TInt DEventTracker::AddExistingObjects()
|
|
|
525 |
{
|
|
|
526 |
// Tracking can be started only after all containers read to avoid
|
|
|
527 |
// race conditions.
|
|
|
528 |
__ASSERT_DEBUG(!iTracking, Kern::Fault(KPanicCat, __LINE__));
|
|
|
529 |
|
|
|
530 |
TInt err = KErrNone;
|
|
|
531 |
Kern::Printf("Adding processes");
|
|
|
532 |
err = AddObjectsFromContainer(EProcess);
|
|
|
533 |
if (err)
|
|
|
534 |
{
|
|
|
535 |
return err;
|
|
|
536 |
}
|
|
|
537 |
Kern::Printf("Adding threads");
|
|
|
538 |
err = AddObjectsFromContainer(EThread);
|
|
|
539 |
if (err)
|
|
|
540 |
{
|
|
|
541 |
return err;
|
|
|
542 |
}
|
|
|
543 |
Kern::Printf("Adding libraries");
|
|
|
544 |
err = AddObjectsFromContainer(ELibrary);
|
|
|
545 |
if (err)
|
|
|
546 |
{
|
|
|
547 |
return err;
|
|
|
548 |
}
|
|
|
549 |
Kern::Printf("Adding chunks");
|
|
|
550 |
err = AddObjectsFromContainer(EChunk);
|
|
|
551 |
if (err)
|
|
|
552 |
{
|
|
|
553 |
return err;
|
|
|
554 |
}
|
|
|
555 |
Kern::Printf("Adding LDDs");
|
|
|
556 |
err = AddObjectsFromContainer(ELogicalDevice);
|
|
|
557 |
if (err)
|
|
|
558 |
{
|
|
|
559 |
return err;
|
|
|
560 |
}
|
|
|
561 |
Kern::Printf("Adding PDDs");
|
|
|
562 |
err = AddObjectsFromContainer(EPhysicalDevice);
|
|
|
563 |
if (err)
|
|
|
564 |
{
|
|
|
565 |
return err;
|
|
|
566 |
}
|
|
|
567 |
Kern::Printf("Adding code segs");
|
|
|
568 |
return AddCodeSegsFromList();
|
|
|
569 |
}
|
|
|
570 |
|
|
|
571 |
/** Add all objects from specified container into tracking list. */
|
|
|
572 |
|
|
|
573 |
TInt DEventTracker::AddObjectsFromContainer(TObjectType aType)
|
|
|
574 |
{
|
|
|
575 |
DObjectCon* const container = Kern::Containers()[aType];
|
|
|
576 |
|
|
|
577 |
NKern::ThreadEnterCS();
|
|
|
578 |
container->Wait();
|
|
|
579 |
|
|
|
580 |
const TInt count = container->Count();
|
|
|
581 |
TInt err = KErrNone;
|
|
|
582 |
|
|
|
583 |
for (TInt i = 0; (i < count && err == KErrNone); ++i)
|
|
|
584 |
{
|
|
|
585 |
DObject* const object = (*container)[i];
|
|
|
586 |
if (object->Open() == KErrNone)
|
|
|
587 |
{
|
|
|
588 |
AddObject(aType, object);
|
|
|
589 |
if (iOOM)
|
|
|
590 |
{
|
|
|
591 |
err = KErrNoMemory;
|
|
|
592 |
}
|
|
|
593 |
object->Close(NULL);
|
|
|
594 |
}
|
|
|
595 |
}
|
|
|
596 |
|
|
|
597 |
container->Signal();
|
|
|
598 |
NKern::ThreadLeaveCS();
|
|
|
599 |
|
|
|
600 |
return err;
|
|
|
601 |
}
|
|
|
602 |
|
|
|
603 |
TInt DEventTracker::AddCodeSegsFromList()
|
|
|
604 |
{
|
|
|
605 |
Kern::AccessCode();
|
|
|
606 |
|
|
|
607 |
const SDblQueLink* const anchor = &Kern::CodeSegList()->iA;
|
|
|
608 |
for (SDblQueLink* link = Kern::CodeSegList()->First(); link != anchor; link = link->iNext)
|
|
|
609 |
{
|
|
|
610 |
DCodeSeg* const codeSeg = _LOFF(link, DCodeSeg, iLink);
|
|
|
611 |
AddCodeSeg(codeSeg, NULL);
|
|
|
612 |
}
|
|
|
613 |
|
|
|
614 |
Kern::EndAccessCode();
|
|
|
615 |
|
|
|
616 |
return KErrNone;
|
|
|
617 |
}
|
|
|
618 |
|
|
|
619 |
|
|
|
620 |
/** Check that tracking list matches existing objects.
|
|
|
621 |
@return number of discrepancies found
|
|
|
622 |
*/
|
|
|
623 |
|
|
|
624 |
TInt DEventTracker::CheckIntegrity()
|
|
|
625 |
{
|
|
|
626 |
// Tracking must be stopped to avoid race conditions.
|
|
|
627 |
__ASSERT_DEBUG(!iTracking, Kern::Fault(KPanicCat, __LINE__));
|
|
|
628 |
|
|
|
629 |
if (iOOM)
|
|
|
630 |
{
|
|
|
631 |
Kern::Printf("EVENTTRACKER: OOM during tracking");
|
|
|
632 |
}
|
|
|
633 |
|
|
|
634 |
CheckContainerIntegrity(EProcess);
|
|
|
635 |
CheckContainerIntegrity(EThread);
|
|
|
636 |
CheckContainerIntegrity(ELibrary);
|
|
|
637 |
CheckContainerIntegrity(EChunk);
|
|
|
638 |
CheckContainerIntegrity(ELogicalDevice);
|
|
|
639 |
CheckContainerIntegrity(EPhysicalDevice);
|
|
|
640 |
CheckCodeSegListIntegrity();
|
|
|
641 |
|
|
|
642 |
CheckAllAccountedFor();
|
|
|
643 |
|
|
|
644 |
if (iErrorCount)
|
|
|
645 |
{
|
|
|
646 |
Kern::Printf("EVENTTRACKER: %d error(s) found", iErrorCount);
|
|
|
647 |
return KErrGeneral;
|
|
|
648 |
}
|
|
|
649 |
|
|
|
650 |
return KErrNone;
|
|
|
651 |
}
|
|
|
652 |
|
|
|
653 |
/** Check all objects in specified container are in tracking list. */
|
|
|
654 |
|
|
|
655 |
void DEventTracker::CheckContainerIntegrity(TObjectType aType)
|
|
|
656 |
{
|
|
|
657 |
DObjectCon* const container = Kern::Containers()[aType];
|
|
|
658 |
|
|
|
659 |
NKern::ThreadEnterCS();
|
|
|
660 |
container->Wait();
|
|
|
661 |
|
|
|
662 |
const TInt count = container->Count();
|
|
|
663 |
|
|
|
664 |
for (TInt i = 0; i < count; ++i)
|
|
|
665 |
{
|
|
|
666 |
DObject* const object = (*container)[i];
|
|
|
667 |
if (object->Open() == KErrNone)
|
|
|
668 |
{
|
|
|
669 |
TFullName name;
|
|
|
670 |
object->FullName(name);
|
|
|
671 |
|
|
|
672 |
TTrackedObject* const trackedObject = (TTrackedObject*)LookupItem(object);
|
|
|
673 |
|
|
|
674 |
if (trackedObject)
|
|
|
675 |
{
|
|
|
676 |
trackedObject->iAccountedFor = ETrue;
|
|
|
677 |
if (!trackedObject->CheckIntegrity(name, aType))
|
|
|
678 |
{
|
|
|
679 |
++iErrorCount;
|
|
|
680 |
}
|
|
|
681 |
}
|
|
|
682 |
else
|
|
|
683 |
{
|
|
|
684 |
Kern::Printf("EVENTTRACKER: %S (type %d) is in container but not in tracking list", &name, aType);
|
|
|
685 |
++iErrorCount;
|
|
|
686 |
}
|
|
|
687 |
|
|
|
688 |
object->Close(NULL);
|
|
|
689 |
}
|
|
|
690 |
}
|
|
|
691 |
|
|
|
692 |
container->Signal();
|
|
|
693 |
NKern::ThreadLeaveCS();
|
|
|
694 |
}
|
|
|
695 |
|
|
|
696 |
void DEventTracker::CheckCodeSegListIntegrity()
|
|
|
697 |
{
|
|
|
698 |
Kern::AccessCode();
|
|
|
699 |
|
|
|
700 |
const SDblQueLink* const anchor = &Kern::CodeSegList()->iA;
|
|
|
701 |
for (SDblQueLink* link = Kern::CodeSegList()->First(); link != anchor; link = link->iNext)
|
|
|
702 |
{
|
|
|
703 |
DCodeSeg* const codeSeg = _LOFF(link, DCodeSeg, iLink);
|
|
|
704 |
TTrackedCodeSeg* const trackedCodeSeg = (TTrackedCodeSeg*)LookupItem(codeSeg);
|
|
|
705 |
|
|
|
706 |
if (trackedCodeSeg)
|
|
|
707 |
{
|
|
|
708 |
trackedCodeSeg->iAccountedFor = ETrue;
|
|
|
709 |
if (!trackedCodeSeg->CheckIntegrity(codeSeg->iAccessCount))
|
|
|
710 |
{
|
|
|
711 |
++iErrorCount;
|
|
|
712 |
}
|
|
|
713 |
}
|
|
|
714 |
else
|
|
|
715 |
{
|
|
|
716 |
Kern::Printf("EVENTTRACKER: %C is in global list but not in tracking list", codeSeg);
|
|
|
717 |
++iErrorCount;
|
|
|
718 |
}
|
|
|
719 |
}
|
|
|
720 |
|
|
|
721 |
Kern::EndAccessCode();
|
|
|
722 |
}
|
|
|
723 |
|
|
|
724 |
|
|
|
725 |
/** Check that all objects in tracking list have been accounted for. */
|
|
|
726 |
void DEventTracker::CheckAllAccountedFor()
|
|
|
727 |
{
|
|
|
728 |
const SDblQueLink* link = iItems.GetFirst();
|
|
|
729 |
while (link)
|
|
|
730 |
{
|
|
|
731 |
TTrackedItem* const item = _LOFF(link, TTrackedItem, iLink);
|
|
|
732 |
if (!item->iAccountedFor)
|
|
|
733 |
{
|
|
|
734 |
Kern::Printf(
|
|
|
735 |
"EVENTTRACKER: 0x%x is in tracking list but not in container / list",
|
|
|
736 |
&item->iObject
|
|
|
737 |
);
|
|
|
738 |
++iErrorCount;
|
|
|
739 |
}
|
|
|
740 |
link = iItems.GetFirst();
|
|
|
741 |
}
|
|
|
742 |
}
|
|
|
743 |
|
|
|
744 |
/** Look for specified object in the tracking list.
|
|
|
745 |
@pre iLock held
|
|
|
746 |
@post iLock held
|
|
|
747 |
*/
|
|
|
748 |
TTrackedItem* DEventTracker::LookupItem(DBase* aItem) const
|
|
|
749 |
{
|
|
|
750 |
const SDblQueLink* const anchor = &iItems.iA;
|
|
|
751 |
|
|
|
752 |
for (SDblQueLink* link = iItems.First(); link != anchor; link = link->iNext)
|
|
|
753 |
{
|
|
|
754 |
TTrackedItem* const item = _LOFF(link, TTrackedItem, iLink);
|
|
|
755 |
|
|
|
756 |
if (item->iObject == aItem)
|
|
|
757 |
{
|
|
|
758 |
return item;
|
|
|
759 |
}
|
|
|
760 |
}
|
|
|
761 |
|
|
|
762 |
return NULL;
|
|
|
763 |
}
|
|
|
764 |
|
|
|
765 |
|
|
|
766 |
void DEventTracker::DumpCounters() const
|
|
|
767 |
{
|
|
|
768 |
static const char* const KEventName[] =
|
|
|
769 |
{
|
|
|
770 |
"SwExc ",
|
|
|
771 |
"HwExc ",
|
|
|
772 |
"AddProcess ",
|
|
|
773 |
"UpdateProcess ",
|
|
|
774 |
"RemoveProcess ",
|
|
|
775 |
"AddThread ",
|
|
|
776 |
"StartThread ",
|
|
|
777 |
"UpdateThread ",
|
|
|
778 |
"KillThread ",
|
|
|
779 |
"RemoveThread ",
|
|
|
780 |
"NewChunk ",
|
|
|
781 |
"UpdateChunk ",
|
|
|
782 |
"DeleteChunk ",
|
|
|
783 |
"AddLibrary ",
|
|
|
784 |
"RemoveLibrary ",
|
|
|
785 |
"LoadLdd ",
|
|
|
786 |
"UnloadLdd ",
|
|
|
787 |
"LoadPdd ",
|
|
|
788 |
"UnloadPdd ",
|
|
|
789 |
"UserTrace ",
|
|
|
790 |
"AddCodeSeg ",
|
|
|
791 |
"RemoveCodeSeg ",
|
|
|
792 |
"LoadedProcess ",
|
|
|
793 |
"UnloadingProcess"
|
|
|
794 |
};
|
|
|
795 |
|
|
|
796 |
Kern::Printf("EVENT USAGE STATISTICS:");
|
|
|
797 |
|
|
|
798 |
for (TInt i = 0; i < EEventLimit; ++i)
|
|
|
799 |
{
|
|
|
800 |
Kern::Printf("\t%s\t\t %d times", KEventName[i], iCounters[i]);
|
|
|
801 |
}
|
|
|
802 |
}
|
|
|
803 |
|
|
|
804 |
#ifdef __MARM__
|
|
|
805 |
void DEventTracker::CopyDummyHandler(TLinAddr aLinAddr)
|
|
|
806 |
{
|
|
|
807 |
const TUint handlerSize = DummyHandlerSize();
|
|
|
808 |
|
|
|
809 |
// Copy the breakpoint-able handler into RAM by copying from the one (possibly) in ROM
|
|
|
810 |
memcpy((TAny*)aLinAddr, (TAny*) &DummyHandler, handlerSize);
|
|
|
811 |
__KTRACE_OPT(KBOOT, Kern::Printf("Breakpoint-able handler copied from 0x%x to (va) 0x%x, size %d", &DummyHandler, aLinAddr, handlerSize));
|
|
|
812 |
}
|
|
|
813 |
#endif
|
|
|
814 |
|
|
|
815 |
//////////////////////////////////////////////////////////////////////////////
|
|
|
816 |
|
|
|
817 |
class DTestChannel : public DLogicalChannelBase
|
|
|
818 |
{
|
|
|
819 |
public:
|
|
|
820 |
virtual ~DTestChannel();
|
|
|
821 |
protected:
|
|
|
822 |
// from DLogicalChannelBase
|
|
|
823 |
virtual TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);
|
|
|
824 |
virtual TInt Request(TInt aFunction, TAny* a1, TAny* a2);
|
|
|
825 |
private:
|
|
|
826 |
DEventTracker* iHandler;
|
|
|
827 |
};
|
|
|
828 |
|
|
|
829 |
|
|
|
830 |
// called in thread critical section
|
|
|
831 |
TInt DTestChannel::DoCreate(TInt aUnit, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
|
|
|
832 |
{
|
|
|
833 |
if((TUint)aUnit>=2)
|
|
|
834 |
return KErrNotSupported;
|
|
|
835 |
|
|
|
836 |
TBool useHook = aUnit;
|
|
|
837 |
|
|
|
838 |
iHandler = new DEventTracker;
|
|
|
839 |
|
|
|
840 |
if (!iHandler)
|
|
|
841 |
{
|
|
|
842 |
return KErrNoMemory;
|
|
|
843 |
}
|
|
|
844 |
|
|
|
845 |
return iHandler->Create(iDevice, useHook);
|
|
|
846 |
}
|
|
|
847 |
|
|
|
848 |
// called in thread critical section
|
|
|
849 |
DTestChannel::~DTestChannel()
|
|
|
850 |
{
|
|
|
851 |
if (iHandler)
|
|
|
852 |
{
|
|
|
853 |
iHandler->Close();
|
|
|
854 |
}
|
|
|
855 |
}
|
|
|
856 |
|
|
|
857 |
|
|
|
858 |
TInt DTestChannel::Request(TInt aFunction, TAny* /*a1*/, TAny* /*a2*/)
|
|
|
859 |
{
|
|
|
860 |
TInt r = KErrNone;
|
|
|
861 |
switch (aFunction)
|
|
|
862 |
{
|
|
|
863 |
case REventTracker::EStart:
|
|
|
864 |
iHandler->Start();
|
|
|
865 |
break;
|
|
|
866 |
case REventTracker::EStop:
|
|
|
867 |
iHandler->Stop();
|
|
|
868 |
break;
|
|
|
869 |
default:
|
|
|
870 |
Kern::PanicCurrentThread(KClientPanicCat, __LINE__);
|
|
|
871 |
break;
|
|
|
872 |
}
|
|
|
873 |
return r;
|
|
|
874 |
}
|
|
|
875 |
|
|
|
876 |
|
|
|
877 |
//////////////////////////////////////////////////////////////////////////////
|
|
|
878 |
|
|
|
879 |
class DTestFactory : public DLogicalDevice
|
|
|
880 |
{
|
|
|
881 |
public:
|
|
|
882 |
DTestFactory();
|
|
|
883 |
// from DLogicalDevice
|
|
|
884 |
virtual TInt Install();
|
|
|
885 |
virtual void GetCaps(TDes8& aDes) const;
|
|
|
886 |
virtual TInt Create(DLogicalChannelBase*& aChannel);
|
|
|
887 |
};
|
|
|
888 |
|
|
|
889 |
DTestFactory::DTestFactory()
|
|
|
890 |
{
|
|
|
891 |
iVersion = REventTracker::Version();
|
|
|
892 |
iParseMask = KDeviceAllowUnit;
|
|
|
893 |
iUnitsMask = 0x3;
|
|
|
894 |
}
|
|
|
895 |
|
|
|
896 |
TInt DTestFactory::Create(DLogicalChannelBase*& aChannel)
|
|
|
897 |
{
|
|
|
898 |
aChannel = new DTestChannel;
|
|
|
899 |
return (aChannel ? KErrNone : KErrNoMemory);
|
|
|
900 |
}
|
|
|
901 |
|
|
|
902 |
TInt DTestFactory::Install()
|
|
|
903 |
{
|
|
|
904 |
return SetName(&KTestLddName);
|
|
|
905 |
}
|
|
|
906 |
|
|
|
907 |
void DTestFactory::GetCaps(TDes8& /*aDes*/) const
|
|
|
908 |
{
|
|
|
909 |
}
|
|
|
910 |
|
|
|
911 |
//////////////////////////////////////////////////////////////////////////////
|
|
|
912 |
|
|
|
913 |
DECLARE_STANDARD_LDD()
|
|
|
914 |
{
|
|
|
915 |
return new DTestFactory;
|
|
|
916 |
}
|