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// Copyright (c) 2004-2010 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 "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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// Device driver for kernel side debug assist
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//
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#ifdef __WINS__
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#error - this driver cannot be built for emulation
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#endif
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#include <e32def.h>
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#include <e32def_private.h>
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#include <e32cmn.h>
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#include <e32cmn_private.h>
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#include <e32ldr.h>
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#include <u32std.h>
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#include <kernel/kernel.h>
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#include <kernel/kern_priv.h>
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#include <nk_trace.h>
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#include <arm.h>
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#include <kernel/cache.h>
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#include <platform.h>
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#include <nkern.h>
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#include <u32hal.h>
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#include <rm_debug_api.h>
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#include "debug_logging.h"
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#include "d_rmd_breakpoints.h" // moved breakpoints code lives here
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#include "d_rmd_stepping.h" // moved stepping code lives here
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#include "rm_debug_kerneldriver.h"
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#include "d_list_manager.h"
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#include "rm_debug_driver.h"
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#include "rm_debug_eventhandler.h"
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#include "d_debug_functionality.h"
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#include "d_process_tracker.h"
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#include "debug_utils.h"
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using namespace Debug;
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//
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//
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// DRM_DebugDriverFactory implementation
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//
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//
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//
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// DRM_DebugDriverFactory constructor
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//
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DRM_DebugDriverFactory::DRM_DebugDriverFactory()
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{
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iVersion = TVersion(KMajorVersionNumber,KMinorVersionNumber,KBuildVersionNumber);
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}
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//
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// DRM_DebugDriverFactory::Create
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//
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TInt DRM_DebugDriverFactory::Create(DLogicalChannelBase*& aChannel)
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{
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if (iOpenChannels != 0)
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return KErrInUse; // a channel is already open
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aChannel = new DRM_DebugChannel(this);
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return aChannel ? KErrNone : KErrNoMemory;
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}
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//
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// DRM_DebugDriverFactory::Install
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//
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TInt DRM_DebugDriverFactory::Install()
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{
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return(SetName(&KRM_DebugDriverName));
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}
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//
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// DRM_DebugDriverFactory::Install
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//
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void DRM_DebugDriverFactory::GetCaps(TDes8& aDes) const
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{
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TCapsRM_DebugDriver b;
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b.iVersion = TVersion(KMajorVersionNumber, KMinorVersionNumber, KBuildVersionNumber);
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Kern::InfoCopy(aDes,(TUint8*)&b,sizeof(b));
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}
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//
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//
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// DRM_DebugChannel implementation
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//
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//
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//
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// DRM_DebugChannel constructor
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//
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DRM_DebugChannel::DRM_DebugChannel(DLogicalDevice* aLogicalDevice)
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: iExcludedROMAddressStart(ROM_LINEAR_BASE),
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iExcludedROMAddressEnd(0),
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iPageSize(0x1000),
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iBreakManager(0),
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iStepper(0),
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iStepLock(0),
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iDfcQ(NULL),
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iInitialisedCodeModifier(0),
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iAsyncGetValueRequest(NULL)
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{
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LOG_MSG("DRM_DebugChannel::DRM_DebugChannel()");
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iDevice = aLogicalDevice;
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iClientThread = &Kern::CurrentThread();
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// Opening handle to current thread, so no need to check for return-value
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(void)iClientThread->Open();
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LOG_MSG3("DRM_DebugChannel::DRM_DebugChannel() clientThread = 0x%08x, id=%d",
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iClientThread, iClientThread->iId );
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iPageSize = Kern::RoundToPageSize(1);
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}
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//
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// DRM_DebugChannel destructor
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//
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DRM_DebugChannel::~DRM_DebugChannel()
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{
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LOG_MSG("DRM_DebugChannel::~DRM_DebugChannel()");
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if (iAsyncGetValueRequest)
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{
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Kern::QueueRequestComplete(iClientThread, iAsyncGetValueRequest, KErrCancel); // does nothing if request not pending
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Kern::DestroyClientRequest(iAsyncGetValueRequest);
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}
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NKern::ThreadEnterCS();
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Kern::SafeClose((DObject*&)iClientThread, NULL);
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NKern::ThreadLeaveCS();
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// Close breakpoint manager
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if (iBreakManager)
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{
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NKern::ThreadEnterCS();
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delete iBreakManager;
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NKern::ThreadLeaveCS();
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}
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// Close stepping manager
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if (iStepper)
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{
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NKern::ThreadEnterCS();
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delete iStepper;
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NKern::ThreadLeaveCS();
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}
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//close the debug process list
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iDebugProcessList.Close();
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DestroyDfcQ();
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//close the code modifier
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if (iInitialisedCodeModifier)
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{
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DebugSupport::CloseCodeModifier();
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}
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}
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void DRM_DebugChannel::DestroyDfcQ()
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{
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LOG_MSG("DRM_DebugChannel::DestroyDfcQ()");
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if (iDfcQ)
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{
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NKern::ThreadEnterCS();
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iDfcQ->Destroy();
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NKern::ThreadLeaveCS();
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}
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}
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//
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// DRM_DebugChannel::DoCreate
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//
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TInt DRM_DebugChannel::DoCreate(TInt /*aUnit*/, const TDesC* anInfo, const TVersion& aVer)
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{
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LOG_MSG("DRM_DebugChannel::DoCreate()");
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TInt err = Kern::CreateClientDataRequest(iAsyncGetValueRequest);
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if(err != KErrNone)
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return err;
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if (!Kern::QueryVersionSupported(TVersion(KMajorVersionNumber, KMinorVersionNumber, KBuildVersionNumber), aVer))
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return KErrNotSupported;
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// Do the security check here so that any arbitrary application doesn't make
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// use of Trk kernel driver.
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if (!DoSecurityCheck())
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{
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LOG_MSG("DRM_DebugChannel::DoCreate() - permission denied!");
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return KErrPermissionDenied;
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}
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if (anInfo)
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{
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// this is the end address of the user library.
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// this doesn't seem to be valid for EKA2.
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// right now we dont need this for EKA2 since we are not worried
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// about kernel being stopped as kernel is multithreaded.
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// just retaining this for future use.
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TBuf8<32> buf;
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TInt err = Kern::ThreadRawRead(iClientThread, anInfo, &buf, 32);
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if(err != KErrNone)
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return err;
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}
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// Allocate a D_RMD_Breakpoints class as a breakpoint manager
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NKern::ThreadEnterCS();
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iBreakManager = new D_RMD_Breakpoints(this);
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NKern::ThreadLeaveCS();
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if (iBreakManager == NULL)
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{
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LOG_MSG("DRM_DebugChannel::DRM_DebugChannel - could not construct breakpoint manager");
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return KErrNoMemory;
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}
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// Initialise the new breakpoint manager object
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iBreakManager->Init();
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// Allocate a DRMDStepping class as the stepping manager
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NKern::ThreadEnterCS();
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iStepper = new DRMDStepping(this);
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NKern::ThreadLeaveCS();
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if (iStepper == NULL)
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{
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LOG_MSG("DRM_DebugChannel::DRM_DebugChannel - could not construct stepper manager");
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return KErrNoMemory;
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}
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// Initialize the code modifier for managing breakpoints.
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TUint caps; //ignored for now
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err = DebugSupport::InitialiseCodeModifier(caps, NUMBER_OF_MAX_BREAKPOINTS);
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//if code modifier initializer failed,
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//return here, since we can't set an breakpoints
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if(err != KErrNone)
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{
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return err;
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}
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else
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{
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iInitialisedCodeModifier = ETrue;
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}
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//create and set the driver's Dfc queue
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err = CreateDfcQ();
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if(err != KErrNone)
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{
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LOG_MSG("DRM_DebugChannel::DoCreate() Creating Dfc queue failed.");
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}
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SetDfcQ(iDfcQ);
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iMsgQ.Receive();
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iEventHandler = new DRM_DebugEventHandler;
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if (!iEventHandler)
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return KErrNoMemory;
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err = iEventHandler->Create(iDevice, this, iClientThread);
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if (err != KErrNone)
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return err;
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//return KErrNone;
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return iEventHandler->Start();
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}
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/**
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Forward call to either synch or asynch methods while serialising all calls via lock.
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Protect access via a the event handler lock to
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serialise all calls and protect concurrent access to data structures
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@param aMsg pointer to a TMessageBase object
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@return error returned by called methods
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@see DRM_DebugEventHandler::HandleSpecificEvent where lock is also used
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@see DRM_DebugEventHandler::iProtectionLock
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*/
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TInt DRM_DebugChannel::SendMsg(TMessageBase* aMsg)
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{
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DThread * currThread = &Kern::CurrentThread();
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iEventHandler->LockDataAccess();
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LOG_MSG3("DRM_DebugChannel::SendMsg() currThread = 0x%08x, iClientThread=0x%08x", currThread, iClientThread );
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TThreadMessage& m = *(TThreadMessage*)aMsg;
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TInt id = m.iValue;
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TInt err = KErrNone;
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if (id != (TInt)ECloseMsg && id != KMaxTInt && id < 0)
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{
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// DoRequest
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TRequestStatus* pStatus = (TRequestStatus*)m.Ptr0();
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err = SendRequest(aMsg);
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if (err != KErrNone)
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Kern::RequestComplete(pStatus,err);
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}
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else
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{
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err = DLogicalChannel::SendMsg(aMsg);
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}
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iEventHandler->ReleaseDataAccess();
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return err;
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}
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//
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// DRM_DebugChannel::SendRequest
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//
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TInt DRM_DebugChannel::SendRequest(TMessageBase* aMsg)
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{
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LOG_MSG("DRM_DebugChannel::SendRequest()");
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TThreadMessage& m = *(TThreadMessage*)aMsg;
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TInt function = ~m.iValue;
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TRequestStatus* pStatus = (TRequestStatus*)m.Ptr0();
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TAny* a1 = m.Ptr1();
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TInt err = KErrNotSupported;
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switch(function)
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{
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case RRM_DebugDriver::ERequestGetEvent:
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err = PreAsyncGetValue((TEventInfo*)a1,pStatus);
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break;
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}
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if (err == KErrNone)
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err = DLogicalChannel::SendMsg(aMsg);
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return err;
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}
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//
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// DRM_DebugChannel::PreAsyncGetValue
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//
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TInt DRM_DebugChannel::PreAsyncGetValue(TEventInfo* aValue, TRequestStatus* aStatus)
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{
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LOG_MSG3("DRM_DebugChannel::PreAsyncGetValue() TEventInfo=0x%08x, TRequestStatus=0x%08x",
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aValue, aStatus );
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iAsyncGetValueRequest->Reset();
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TInt err = iAsyncGetValueRequest->SetStatus(aStatus);
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if (err != KErrNone)
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return err;
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iAsyncGetValueRequest->SetDestPtr(aValue);
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return KErrNone;
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}
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/**
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Create the Dfc queue for receiving messages
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*/
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TInt DRM_DebugChannel::CreateDfcQ()
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{
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LOG_MSG("DRM_DebugChannel::CreateDfcQ()");
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TInt r = Kern::DynamicDfcQCreate(iDfcQ, KRmDebugDriverThreadPriority, KRM_DebugDriverName);
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if (r == KErrNone)
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iDfcQ->SetRealtimeState(ERealtimeStateOff);
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return r;
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}
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//
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// DRM_DebugChannel::DoCancel
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//
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380 |
// New: The cancel call does not take an enum parameter describing
|
|
|
381 |
// the request to be cancelled. Rather it supplies a pointer
|
|
|
382 |
// to a user-side struct defining the cancellation
|
|
|
383 |
//
|
|
|
384 |
void DRM_DebugChannel::DoCancel(TInt aReqNo)
|
|
|
385 |
{
|
|
|
386 |
LOG_MSG("DRM_DebugChannel::DoCancel()");
|
|
|
387 |
|
|
|
388 |
TRMD_DebugCancelInfo info;
|
|
|
389 |
|
|
|
390 |
TInt err = Kern::ThreadRawRead(iClientThread,(TAny*)aReqNo,(TAny*)&info,sizeof(info));
|
|
|
391 |
if (err != KErrNone)
|
|
|
392 |
{
|
|
|
393 |
// How do we cancel something we know nothing about???
|
|
|
394 |
LOG_MSG("DRM_DebugChannel::DoCancel - bad arguments");
|
|
|
395 |
return;
|
|
|
396 |
}
|
|
|
397 |
|
|
|
398 |
DDebugAgent* debugAgent = TheDProcessTracker.FindAgentForProcessAndId(info.iProcessName, info.iAgentId);
|
|
|
399 |
if (debugAgent == NULL)
|
|
|
400 |
{
|
|
|
401 |
// Bad agent means there is no tracking agent
|
|
|
402 |
LOG_MSG2("Cannot locate debug agent with pid 0x%x", info.iAgentId);
|
|
|
403 |
return;
|
|
|
404 |
}
|
|
|
405 |
|
|
|
406 |
// Agent completes/pends the request as appropriate.
|
|
|
407 |
debugAgent->CancelGetEvent();
|
|
|
408 |
|
|
|
409 |
}
|
|
|
410 |
|
|
|
411 |
//
|
|
|
412 |
// DRM_DebugChannel::DoRequest
|
|
|
413 |
//
|
|
|
414 |
void DRM_DebugChannel::DoRequest(TInt aReqNo, TRequestStatus* aStatus, TAny* a1, TAny* a2)
|
|
|
415 |
{
|
|
|
416 |
LOG_MSG4("DRM_DebugChannel::DoRequest(), iClientThread=0x%08x, tid=0x%08x, TRequestStatus=0x%08x",
|
|
|
417 |
iClientThread, I64LOW(iClientThread->iId), aStatus);
|
|
|
418 |
|
|
|
419 |
switch(aReqNo)
|
|
|
420 |
{
|
|
|
421 |
case RRM_DebugDriver::ERequestGetEvent:
|
|
|
422 |
{
|
|
|
423 |
TEventMetaData eventMetaData;
|
|
|
424 |
TInt err = Kern::ThreadRawRead(iClientThread, a2, (TUint8 *)&eventMetaData, sizeof(TEventMetaData) );
|
|
|
425 |
if (err != KErrNone)
|
|
|
426 |
{
|
|
|
427 |
LOG_MSG("Error: could not read argument data from the DSS (TEventMetaData)");
|
|
|
428 |
|
|
|
429 |
// We could not read information from the user, so the a2 argument is probably wrong
|
|
|
430 |
Kern::RequestComplete(iClientThread, aStatus, KErrArgument);
|
|
|
431 |
return;
|
|
|
432 |
}
|
|
|
433 |
|
|
|
434 |
DDebugAgent* debugAgent = TheDProcessTracker.FindAgentForProcessAndId(eventMetaData.iTargetProcessName, eventMetaData.iDebugAgentProcessId);
|
|
|
435 |
if (debugAgent == NULL)
|
|
|
436 |
{
|
|
|
437 |
// Bad agent means there is no tracking agent
|
|
|
438 |
LOG_MSG2("Cannot locate debug agent with pid 0x%x", eventMetaData.iDebugAgentProcessId);
|
|
|
439 |
Kern::RequestComplete(iClientThread, aStatus, KErrNotFound);
|
|
|
440 |
return;
|
|
|
441 |
}
|
|
|
442 |
// Agent completes/pends the request as appropriate.
|
|
|
443 |
debugAgent->GetEvent(iAsyncGetValueRequest, iClientThread);
|
|
|
444 |
|
|
|
445 |
break;
|
|
|
446 |
}
|
|
|
447 |
default:
|
|
|
448 |
{
|
|
|
449 |
// Should not get here!
|
|
|
450 |
LOG_MSG2("DRM_DebugChannel::DoRequest was passed unsupported request aReqNo=%d", aReqNo );
|
|
|
451 |
Kern::RequestComplete(iClientThread, aStatus, KErrNotSupported);
|
|
|
452 |
}
|
|
|
453 |
}
|
|
|
454 |
}
|
|
|
455 |
|
|
|
456 |
//
|
|
|
457 |
// DRM_DebugChannel::DoControl
|
|
|
458 |
//
|
|
|
459 |
TInt DRM_DebugChannel::DoControl(TInt aFunction, TAny* a1, TAny* a2)
|
|
|
460 |
{
|
|
|
461 |
LOG_MSG("DRM_DebugChannel::DoControl()");
|
|
|
462 |
|
|
|
463 |
LOG_MSG2("DoControl Function %d", aFunction);
|
|
|
464 |
|
|
|
465 |
TInt err = KErrNone;
|
|
|
466 |
DThread* threadObj = NULL;
|
|
|
467 |
// Open a thread handle for the operations that need one
|
|
|
468 |
switch (aFunction)
|
|
|
469 |
{
|
|
|
470 |
case RRM_DebugDriver::EControlSuspendThread:
|
|
|
471 |
case RRM_DebugDriver::EControlResumeThread:
|
|
|
472 |
case RRM_DebugDriver::EControlStepRange:
|
|
|
473 |
case RRM_DebugDriver::EControlReadMemory:
|
|
|
474 |
case RRM_DebugDriver::EControlWriteMemory:
|
|
|
475 |
case RRM_DebugDriver::EControlReadRegistersLegacy:
|
|
|
476 |
case RRM_DebugDriver::EControlWriteRegistersLegacy:
|
|
|
477 |
case RRM_DebugDriver::EControlReadRegisters:
|
|
|
478 |
case RRM_DebugDriver::EControlWriteRegisters:
|
|
|
479 |
{
|
|
|
480 |
NKern::ThreadEnterCS();
|
|
|
481 |
threadObj = DebugUtils::OpenThreadHandle((TUint32)a1);
|
|
|
482 |
if (!threadObj)
|
|
|
483 |
{
|
|
|
484 |
NKern::ThreadLeaveCS();
|
|
|
485 |
return KErrBadHandle;
|
|
|
486 |
}
|
|
|
487 |
break;
|
|
|
488 |
}
|
|
|
489 |
default:
|
|
|
490 |
break;
|
|
|
491 |
}
|
|
|
492 |
|
|
|
493 |
switch(aFunction)
|
|
|
494 |
{
|
|
|
495 |
/* Security first */
|
|
|
496 |
case RRM_DebugDriver::EControlIsDebuggable:
|
|
|
497 |
{
|
|
|
498 |
err = IsDebuggable((TUint32)a1);
|
|
|
499 |
break;
|
|
|
500 |
}
|
|
|
501 |
case RRM_DebugDriver::EControlSetBreak:
|
|
|
502 |
{
|
|
|
503 |
err = SetBreak((TSetBreakInfo*)a1);
|
|
|
504 |
break;
|
|
|
505 |
}
|
|
|
506 |
case RRM_DebugDriver::EControlClearBreak:
|
|
|
507 |
{
|
|
|
508 |
err = iBreakManager->DoClearBreak((TInt32)a1);
|
|
|
509 |
break;
|
|
|
510 |
}
|
|
|
511 |
case RRM_DebugDriver::EControlModifyBreak:
|
|
|
512 |
{
|
|
|
513 |
err = iBreakManager->DoModifyBreak((TModifyBreakInfo*)a1);
|
|
|
514 |
break;
|
|
|
515 |
}
|
|
|
516 |
case RRM_DebugDriver::EControlModifyProcessBreak:
|
|
|
517 |
{
|
|
|
518 |
err = iBreakManager->DoModifyProcessBreak((TModifyProcessBreakInfo*)a1);
|
|
|
519 |
break;
|
|
|
520 |
}
|
|
|
521 |
case RRM_DebugDriver::EControlBreakInfo:
|
|
|
522 |
{
|
|
|
523 |
err = iBreakManager->DoBreakInfo((TGetBreakInfo*)a1);
|
|
|
524 |
break;
|
|
|
525 |
}
|
|
|
526 |
case RRM_DebugDriver::EControlSuspendThread:
|
|
|
527 |
{
|
|
|
528 |
err = DoSuspendThread(threadObj);
|
|
|
529 |
break;
|
|
|
530 |
}
|
|
|
531 |
case RRM_DebugDriver::EControlResumeThread:
|
|
|
532 |
{
|
|
|
533 |
err = DoResumeThread(threadObj);
|
|
|
534 |
break;
|
|
|
535 |
}
|
|
|
536 |
case RRM_DebugDriver::EControlStepRange:
|
|
|
537 |
{
|
|
|
538 |
err = StepRange(threadObj, (TRM_DebugStepInfo*)a2);
|
|
|
539 |
break;
|
|
|
540 |
}
|
|
|
541 |
case RRM_DebugDriver::EControlReadMemory:
|
|
|
542 |
{
|
|
|
543 |
err = ReadMemory(threadObj, (TRM_DebugMemoryInfo*)a2);
|
|
|
544 |
break;
|
|
|
545 |
}
|
|
|
546 |
case RRM_DebugDriver::EControlWriteMemory:
|
|
|
547 |
{
|
|
|
548 |
err = WriteMemory(threadObj, (TRM_DebugMemoryInfo*)a2);
|
|
|
549 |
break;
|
|
|
550 |
}
|
|
|
551 |
case RRM_DebugDriver::EControlReadRegistersLegacy:
|
|
|
552 |
{
|
|
|
553 |
err = ReadRegistersLegacy(threadObj, (TRM_DebugRegisterInfo*)a2);
|
|
|
554 |
break;
|
|
|
555 |
}
|
|
|
556 |
case RRM_DebugDriver::EControlWriteRegistersLegacy:
|
|
|
557 |
{
|
|
|
558 |
err = WriteRegistersLegacy(threadObj, (TRM_DebugRegisterInfo*)a2);
|
|
|
559 |
break;
|
|
|
560 |
}
|
|
|
561 |
case RRM_DebugDriver::EControlReadRegisters:
|
|
|
562 |
{
|
|
|
563 |
err = ReadRegisters(threadObj, (TRM_DebugRegisterInformation*)a2);
|
|
|
564 |
break;
|
|
|
565 |
}
|
|
|
566 |
case RRM_DebugDriver::EControlWriteRegisters:
|
|
|
567 |
{
|
|
|
568 |
err = WriteRegisters(threadObj, (TRM_DebugRegisterInformation*)a2);
|
|
|
569 |
break;
|
|
|
570 |
}
|
|
|
571 |
case RRM_DebugDriver::EControlGetDebugFunctionalityBufSize:
|
|
|
572 |
{
|
|
|
573 |
LOG_MSG("RRM_DebugDriver::EControlGetDebugFunctionalityBufSize\n");
|
|
|
574 |
|
|
|
575 |
TDebugFunctionality df;
|
|
|
576 |
|
|
|
577 |
TUint size = df.GetDebugFunctionalityBufSize();
|
|
|
578 |
|
|
|
579 |
// Return size to user-side in a safe manner
|
|
|
580 |
err = Kern::ThreadRawWrite(iClientThread, a1, (TUint8*)&size, sizeof(TUint), iClientThread);
|
|
|
581 |
break;
|
|
|
582 |
}
|
|
|
583 |
case RRM_DebugDriver::EControlGetDebugFunctionality:
|
|
|
584 |
{
|
|
|
585 |
LOG_MSG("RRM_DebugDriver::EControlGetDebugFunctionality\n");
|
|
|
586 |
|
|
|
587 |
TDebugFunctionality df;
|
|
|
588 |
|
|
|
589 |
TUint32 dfsize = df.GetDebugFunctionalityBufSize();
|
|
|
590 |
|
|
|
591 |
// Alloc tmp buffer for Debug Functionality data
|
|
|
592 |
NKern::ThreadEnterCS();
|
|
|
593 |
TUint8* dfbuffer = (TUint8*)Kern::AllocZ(dfsize);
|
|
|
594 |
if (dfbuffer==NULL)
|
|
|
595 |
{
|
|
|
596 |
LOG_MSG2("Could not allocate memory for %d bytes\n",dfsize);
|
|
|
597 |
NKern::ThreadLeaveCS();
|
|
|
598 |
// could not allocate memory
|
|
|
599 |
return KErrNoMemory;
|
|
|
600 |
}
|
|
|
601 |
|
|
|
602 |
// Temporary descriptor to hold DF data
|
|
|
603 |
TPtr8 tmpPtr(dfbuffer,0,dfsize);
|
|
|
604 |
|
|
|
605 |
// Obtain the DF data
|
|
|
606 |
if (df.GetDebugFunctionality(tmpPtr) )
|
|
|
607 |
{
|
|
|
608 |
// Return the DF data to the user-side
|
|
|
609 |
err = Kern::ThreadDesWrite(iClientThread, a1, tmpPtr, 0, KChunkShiftBy0, iClientThread);
|
|
|
610 |
}
|
|
|
611 |
else
|
|
|
612 |
{
|
|
|
613 |
// Failed.
|
|
|
614 |
err = KErrGeneral;
|
|
|
615 |
}
|
|
|
616 |
|
|
|
617 |
// Free tmp buffer
|
|
|
618 |
Kern::Free(dfbuffer);
|
|
|
619 |
NKern::ThreadLeaveCS();
|
|
|
620 |
break;
|
|
|
621 |
}
|
|
|
622 |
case RRM_DebugDriver::EControlAttachProcess:
|
|
|
623 |
{
|
|
|
624 |
LOG_MSG("RRM_DebugDriver::EControlAttachProcess");
|
|
|
625 |
|
|
|
626 |
err = AttachProcess(a1,a2);
|
|
|
627 |
break;
|
|
|
628 |
}
|
|
|
629 |
case RRM_DebugDriver::EControlDetachProcess:
|
|
|
630 |
{
|
|
|
631 |
LOG_MSG("RRM_DebugDriver::EControlDetachProcess");
|
|
|
632 |
|
|
|
633 |
err = DetachProcess(a1,a2);
|
|
|
634 |
break;
|
|
|
635 |
}
|
|
|
636 |
case RRM_DebugDriver::EControlDetachAgent:
|
|
|
637 |
{
|
|
|
638 |
LOG_MSG("RRM_DebugDriver::EControlDetachAgent");
|
|
|
639 |
|
|
|
640 |
err = DetachAgent(a1,a2);
|
|
|
641 |
break;
|
|
|
642 |
}
|
|
|
643 |
case RRM_DebugDriver::EControlSetEventAction:
|
|
|
644 |
{
|
|
|
645 |
LOG_MSG("RRM_DebugDriver::EControlSetEventAction");
|
|
|
646 |
|
|
|
647 |
err = SetEventAction(a1,a2);
|
|
|
648 |
break;
|
|
|
649 |
}
|
|
|
650 |
case RRM_DebugDriver::EControlGetMemoryOperationMaxBlockSize:
|
|
|
651 |
{
|
|
|
652 |
LOG_MSG("RRM_DebugDriver::EControlGetMemoryOperationMaxBlockSize\n");
|
|
|
653 |
|
|
|
654 |
TUint32 maxSize = TDebugFunctionality::GetMemoryOperationMaxBlockSize();
|
|
|
655 |
|
|
|
656 |
// Return size to user-side in a safe manner
|
|
|
657 |
err = Kern::ThreadRawWrite(iClientThread, a1, (TUint8*)&maxSize, sizeof(TUint32), iClientThread);
|
|
|
658 |
break;
|
|
|
659 |
}
|
|
|
660 |
case RRM_DebugDriver::EControlGetList:
|
|
|
661 |
{
|
|
|
662 |
LOG_MSG("RRM_DebugDriver::EControlGetList\n");
|
|
|
663 |
err = GetList((TListInformation*)a1);
|
|
|
664 |
break;
|
|
|
665 |
}
|
|
|
666 |
case RRM_DebugDriver::EControlStep:
|
|
|
667 |
{
|
|
|
668 |
LOG_MSG("RRM_DebugDriver::EControlStep\n");
|
|
|
669 |
|
|
|
670 |
err = Step((TUint32)a1,(TUint32)a2);
|
|
|
671 |
break;
|
|
|
672 |
}
|
|
|
673 |
case RRM_DebugDriver::EControlKillProcess:
|
|
|
674 |
{
|
|
|
675 |
LOG_MSG("RRM_DebugDriver::EControlKillProcess\n");
|
|
|
676 |
|
|
|
677 |
err = KillProcess((TUint32)a1,(TUint32)a2);
|
|
|
678 |
break;
|
|
|
679 |
}
|
|
|
680 |
default:
|
|
|
681 |
{
|
|
|
682 |
err = KErrGeneral;
|
|
|
683 |
}
|
|
|
684 |
}
|
|
|
685 |
|
|
|
686 |
if (KErrNone != err)
|
|
|
687 |
{
|
|
|
688 |
LOG_MSG2("Error %d from control function", err);
|
|
|
689 |
}
|
|
|
690 |
|
|
|
691 |
if (threadObj)
|
|
|
692 |
{
|
|
|
693 |
// Close the thread handle which has been opened by DebugUtils::OpenThreadHandle
|
|
|
694 |
threadObj->Close(NULL);
|
|
|
695 |
NKern::ThreadLeaveCS();
|
|
|
696 |
}
|
|
|
697 |
|
|
|
698 |
return err;
|
|
|
699 |
}
|
|
|
700 |
|
|
|
701 |
void DRM_DebugChannel::HandleMsg(TMessageBase* aMsg)
|
|
|
702 |
{
|
|
|
703 |
LOG_MSG("DRM_DebugChannel::HandleMsg()");
|
|
|
704 |
|
|
|
705 |
TThreadMessage& m = *(TThreadMessage*)aMsg;
|
|
|
706 |
TInt id = m.iValue;
|
|
|
707 |
|
|
|
708 |
if (id == (TInt)ECloseMsg)
|
|
|
709 |
{
|
|
|
710 |
if (iEventHandler)
|
|
|
711 |
{
|
|
|
712 |
iEventHandler->Stop();
|
|
|
713 |
iEventHandler->Close();
|
|
|
714 |
iEventHandler = NULL;
|
|
|
715 |
}
|
|
|
716 |
m.Complete(KErrNone, EFalse);
|
|
|
717 |
return;
|
|
|
718 |
}
|
|
|
719 |
|
|
|
720 |
if (id == KMaxTInt)
|
|
|
721 |
{
|
|
|
722 |
// DoCancel
|
|
|
723 |
DoCancel(m.Int0());
|
|
|
724 |
m.Complete(KErrNone, ETrue);
|
|
|
725 |
return;
|
|
|
726 |
}
|
|
|
727 |
|
|
|
728 |
if (id < 0)
|
|
|
729 |
{
|
|
|
730 |
// DoRequest
|
|
|
731 |
TRequestStatus* pStatus = (TRequestStatus*)m.Ptr0();
|
|
|
732 |
DoRequest(~id, pStatus, m.Ptr1(), m.Ptr2());
|
|
|
733 |
m.Complete(KErrNone, ETrue);
|
|
|
734 |
}
|
|
|
735 |
else
|
|
|
736 |
{
|
|
|
737 |
// DoControl
|
|
|
738 |
TInt err = DoControl(id, m.Ptr0(), m.Ptr1());
|
|
|
739 |
m.Complete(err, ETrue);
|
|
|
740 |
}
|
|
|
741 |
}
|
|
|
742 |
|
|
|
743 |
//
|
|
|
744 |
// DRM_DebugChannel::RemoveProcess
|
|
|
745 |
//
|
|
|
746 |
TBool DRM_DebugChannel::RemoveProcess(TAny* a1, TAny* a2)
|
|
|
747 |
{
|
|
|
748 |
LOG_MSG("DRM_DebugChannel::RemoveProcess()");
|
|
|
749 |
|
|
|
750 |
DProcess *aProcess = (DProcess*)a1;
|
|
|
751 |
|
|
|
752 |
// Sanity check
|
|
|
753 |
if (!aProcess)
|
|
|
754 |
{
|
|
|
755 |
// No process was specified!
|
|
|
756 |
LOG_MSG("DRM_DebugChannel::RemoveProcess was called with an invalid process ID");
|
|
|
757 |
return EFalse;
|
|
|
758 |
}
|
|
|
759 |
|
|
|
760 |
// this is called when a process dies. we want to mark any breakpoints in this
|
|
|
761 |
// process space as obsolete. the main reason for this is so we don't return
|
|
|
762 |
// an error when the host debugger tries to clear breakpoints for the process
|
|
|
763 |
|
|
|
764 |
TUint32 codeAddress = 0;
|
|
|
765 |
TUint32 codeSize = 0;
|
|
|
766 |
|
|
|
767 |
LOG_EVENT_MSG2("Process being removed, Name %S", aProcess->iName);
|
|
|
768 |
|
|
|
769 |
DCodeSeg* codeSeg = aProcess->iCodeSeg;
|
|
|
770 |
|
|
|
771 |
if (codeSeg)
|
|
|
772 |
{
|
|
|
773 |
TModuleMemoryInfo processMemoryInfo;
|
|
|
774 |
TInt err = codeSeg->GetMemoryInfo(processMemoryInfo, aProcess);
|
|
|
775 |
if (err != KErrNone)
|
|
|
776 |
{
|
|
|
777 |
codeAddress = processMemoryInfo.iCodeBase;
|
|
|
778 |
codeSize = processMemoryInfo.iCodeSize;
|
|
|
779 |
}
|
|
|
780 |
else
|
|
|
781 |
{
|
|
|
782 |
LOG_MSG2("Error in getting memory info: %d", err);
|
|
|
783 |
}
|
|
|
784 |
}
|
|
|
785 |
|
|
|
786 |
if (!codeAddress || !codeSize)
|
|
|
787 |
{
|
|
|
788 |
LOG_EVENT_MSG2("Code segment not available for process %d", aProcess->iId);
|
|
|
789 |
// make sure there is not already a breakpoint at this address
|
|
|
790 |
for (TInt i = 0; i < iDebugProcessList.Count(); i++)
|
|
|
791 |
{
|
|
|
792 |
if (iDebugProcessList[i].iId == aProcess->iId)
|
|
|
793 |
{
|
|
|
794 |
codeAddress = iDebugProcessList[i].iCodeAddress;
|
|
|
795 |
codeSize = iDebugProcessList[i].iCodeSize;
|
|
|
796 |
|
|
|
797 |
//now remove from the list
|
|
|
798 |
iDebugProcessList.Remove(i);
|
|
|
799 |
break;
|
|
|
800 |
}
|
|
|
801 |
}
|
|
|
802 |
}
|
|
|
803 |
|
|
|
804 |
if (!codeAddress || !codeSize)
|
|
|
805 |
{
|
|
|
806 |
return EFalse;
|
|
|
807 |
}
|
|
|
808 |
|
|
|
809 |
iBreakManager->RemoveBreaksForProcess(aProcess->iId, codeAddress, codeSize);
|
|
|
810 |
return EFalse;
|
|
|
811 |
}
|
|
|
812 |
|
|
|
813 |
//
|
|
|
814 |
// DRM_DebugChannel::StartThread
|
|
|
815 |
//
|
|
|
816 |
TBool DRM_DebugChannel::StartThread(TAny* a1, TAny* a2)
|
|
|
817 |
{
|
|
|
818 |
LOG_EVENT_MSG("DRM_DebugChannel::StartThread()");
|
|
|
819 |
|
|
|
820 |
DThread *aThread = (DThread*)a1;
|
|
|
821 |
if(!aThread)
|
|
|
822 |
{
|
|
|
823 |
LOG_MSG("Error getting DThread object");
|
|
|
824 |
__NK_ASSERT_DEBUG(aThread);
|
|
|
825 |
return EFalse;
|
|
|
826 |
}
|
|
|
827 |
|
|
|
828 |
//a2 points to the thread creating the new thread.
|
|
|
829 |
//We have no use for it at the moment so just ignore it for now
|
|
|
830 |
|
|
|
831 |
TDriverEventInfo info;
|
|
|
832 |
info.iEventType = EEventsStartThread;
|
|
|
833 |
info.iThreadId = aThread->iId;
|
|
|
834 |
info.iThreadIdValid = ETrue;
|
|
|
835 |
DProcess* owningProcess = aThread->iOwningProcess;
|
|
|
836 |
if(owningProcess)
|
|
|
837 |
{
|
|
|
838 |
info.iProcessId = owningProcess->iId;
|
|
|
839 |
info.iProcessIdValid = ETrue;
|
|
|
840 |
DCodeSeg* p = owningProcess->iCodeSeg;
|
|
|
841 |
if(p && p->iFileName)
|
|
|
842 |
{
|
|
|
843 |
info.iFileName.Copy(*(p->iFileName));
|
|
|
844 |
TheDProcessTracker.NotifyAgentsForProcessEvent(*p->iFileName, info);
|
|
|
845 |
}
|
|
|
846 |
else
|
|
|
847 |
{
|
|
|
848 |
if(p)
|
|
|
849 |
{
|
|
|
850 |
LOG_EVENT_MSG("\tCode segment name missing");
|
|
|
851 |
}
|
|
|
852 |
else
|
|
|
853 |
{
|
|
|
854 |
LOG_EVENT_MSG("\tCode segment is NULL");
|
|
|
855 |
}
|
|
|
856 |
}
|
|
|
857 |
}
|
|
|
858 |
return EFalse;
|
|
|
859 |
}
|
|
|
860 |
|
|
|
861 |
//
|
|
|
862 |
// DRM_DebugChannel::HandleAddProcessEvent
|
|
|
863 |
//
|
|
|
864 |
TBool DRM_DebugChannel::HandleAddProcessEvent(TAny* a1, TAny* a2)
|
|
|
865 |
{
|
|
|
866 |
LOG_EVENT_MSG("DRM_DebugChannel::AddProcess()");
|
|
|
867 |
|
|
|
868 |
DProcess *aProcess = (DProcess*)a1;
|
|
|
869 |
// a2 points to the thread creating the new process.
|
|
|
870 |
DThread *aThread = (DThread*)a2;
|
|
|
871 |
|
|
|
872 |
if(!aProcess)
|
|
|
873 |
{
|
|
|
874 |
LOG_MSG("Error getting DProcess object");
|
|
|
875 |
__NK_ASSERT_DEBUG(aProcess);
|
|
|
876 |
return EFalse;
|
|
|
877 |
}
|
|
|
878 |
|
|
|
879 |
TDriverEventInfo info;
|
|
|
880 |
info.iEventType = EEventsAddProcess;
|
|
|
881 |
info.iProcessId = aProcess->iId;
|
|
|
882 |
|
|
|
883 |
info.iCreatorThreadId = aThread ? aThread->iId : 0;
|
|
|
884 |
info.iProcessIdValid = ETrue;
|
|
|
885 |
|
|
|
886 |
// Copy TUids
|
|
|
887 |
info.iUids = aProcess->iUids;
|
|
|
888 |
|
|
|
889 |
info.iUidsValid = ETrue;
|
|
|
890 |
|
|
|
891 |
// copy name of the process
|
|
|
892 |
if (aProcess->iName)
|
|
|
893 |
{
|
|
|
894 |
// copy the name of the process
|
|
|
895 |
info.iFileName.Copy(*aProcess->iName);
|
|
|
896 |
// AddProcess event does not have fully-qualified path, it has "filename.exe"
|
|
|
897 |
// So we allow a less-precise match by passing in ETrue
|
|
|
898 |
TheDProcessTracker.NotifyAgentsForProcessEvent(*aProcess->iName, info, ETrue);
|
|
|
899 |
}
|
|
|
900 |
else
|
|
|
901 |
{
|
|
|
902 |
LOG_EVENT_MSG("DRM_DebugChannel::AddProcess - No iName for this process");
|
|
|
903 |
}
|
|
|
904 |
|
|
|
905 |
return EFalse;
|
|
|
906 |
}
|
|
|
907 |
|
|
|
908 |
//
|
|
|
909 |
// DRM_DebugChannel::HandleRemoveProcessEvent
|
|
|
910 |
//
|
|
|
911 |
TBool DRM_DebugChannel::HandleRemoveProcessEvent(TAny* a1, TAny* a2)
|
|
|
912 |
{
|
|
|
913 |
LOG_MSG("DRM_DebugChannel::HandleRemoveProcessEvent()");
|
|
|
914 |
|
|
|
915 |
DProcess *aProcess = (DProcess*)a1;
|
|
|
916 |
if(!aProcess)
|
|
|
917 |
{
|
|
|
918 |
LOG_MSG("Error getting DProcess object");
|
|
|
919 |
__NK_ASSERT_DEBUG(aProcess);
|
|
|
920 |
return EFalse;
|
|
|
921 |
}
|
|
|
922 |
|
|
|
923 |
// a2 points to the thread creating the new process.
|
|
|
924 |
// We have no use for it at the moment so just ignore it for now
|
|
|
925 |
// Also, it may not be known and therefore NULL
|
|
|
926 |
|
|
|
927 |
TDriverEventInfo info;
|
|
|
928 |
info.iEventType = EEventsRemoveProcess;
|
|
|
929 |
info.iProcessId = aProcess->iId;
|
|
|
930 |
info.iProcessIdValid = ETrue;
|
|
|
931 |
|
|
|
932 |
// copy name of the process
|
|
|
933 |
if (aProcess->iName)
|
|
|
934 |
{
|
|
|
935 |
info.iFileName.Copy(*aProcess->iName);
|
|
|
936 |
|
|
|
937 |
// RemoveProcess event does not have fully-qualified path, it has "filename.exe"
|
|
|
938 |
// So we allow a less-precise match by passing in ETrue
|
|
|
939 |
TheDProcessTracker.NotifyAgentsForProcessEvent(*aProcess->iName, info, ETrue);
|
|
|
940 |
}
|
|
|
941 |
else
|
|
|
942 |
{
|
|
|
943 |
LOG_EVENT_MSG("DRM_DebugChannel::AddProcess - No iName for this process");
|
|
|
944 |
}
|
|
|
945 |
|
|
|
946 |
return EFalse;
|
|
|
947 |
}
|
|
|
948 |
|
|
|
949 |
//
|
|
|
950 |
// DRM_DebugChannel::AddLibrary
|
|
|
951 |
//
|
|
|
952 |
TBool DRM_DebugChannel::AddLibrary(TAny* a1, TAny* a2)
|
|
|
953 |
{
|
|
|
954 |
LOG_EVENT_MSG("DRM_DebugChannel::AddLibrary()");
|
|
|
955 |
|
|
|
956 |
DLibrary *aLibrary = (DLibrary*)a1;
|
|
|
957 |
DThread *aThread = (DThread*)a2;
|
|
|
958 |
|
|
|
959 |
// sanity check
|
|
|
960 |
if (!aLibrary)
|
|
|
961 |
{
|
|
|
962 |
LOG_EVENT_MSG("DRM_DebugChannel::AddLibrary called with no library specified");
|
|
|
963 |
return EFalse;
|
|
|
964 |
}
|
|
|
965 |
|
|
|
966 |
if (!aThread)
|
|
|
967 |
{
|
|
|
968 |
LOG_EVENT_MSG("DRM_DebugChannel::AddLibrary called with no thread specified");
|
|
|
969 |
return EFalse;
|
|
|
970 |
}
|
|
|
971 |
|
|
|
972 |
#ifdef __LOG_EVENTS__
|
|
|
973 |
TFullName threadName;
|
|
|
974 |
aThread->FullName(threadName);
|
|
|
975 |
LOG_EVENT_MSG3(("Lib %S loaded by %S"), aLibrary->iName, &threadName);
|
|
|
976 |
#endif
|
|
|
977 |
|
|
|
978 |
if (aThread)
|
|
|
979 |
{
|
|
|
980 |
// make sure this is not the debugger thread
|
|
|
981 |
if ((aThread != iClientThread) && (aThread->iOwningProcess->iId != iClientThread->iOwningProcess->iId))
|
|
|
982 |
{
|
|
|
983 |
TDriverEventInfo info;
|
|
|
984 |
|
|
|
985 |
info.iEventType = EEventsAddLibrary;
|
|
|
986 |
info.iProcessId = aThread->iOwningProcess->iId;
|
|
|
987 |
info.iProcessIdValid = ETrue;
|
|
|
988 |
info.iThreadId = aThread->iId;
|
|
|
989 |
info.iThreadIdValid = ETrue;
|
|
|
990 |
|
|
|
991 |
//get the code address
|
|
|
992 |
DCodeSeg* codeSeg = aLibrary->iCodeSeg;
|
|
|
993 |
if (!codeSeg)
|
|
|
994 |
{
|
|
|
995 |
LOG_EVENT_MSG2("Code segment not available for library %S", aLibrary->iName);
|
|
|
996 |
return EFalse;
|
|
|
997 |
}
|
|
|
998 |
|
|
|
999 |
// Uid3
|
|
|
1000 |
info.iUids = codeSeg->iUids;
|
|
|
1001 |
info.iUidsValid = ETrue;
|
|
|
1002 |
|
|
|
1003 |
TModuleMemoryInfo memoryInfo;
|
|
|
1004 |
TInt err = codeSeg->GetMemoryInfo(memoryInfo, NULL); //NULL for DProcess should be ok;
|
|
|
1005 |
if (err != KErrNone)
|
|
|
1006 |
{
|
|
|
1007 |
LOG_EVENT_MSG2("Error in getting memory info: %d", err);
|
|
|
1008 |
return EFalse;
|
|
|
1009 |
}
|
|
|
1010 |
|
|
|
1011 |
info.iCodeAddress = memoryInfo.iCodeBase;
|
|
|
1012 |
info.iDataAddress = memoryInfo.iInitialisedDataBase;
|
|
|
1013 |
|
|
|
1014 |
info.iFileName.Copy(*(aLibrary->iName)); //just the name, without uid info.
|
|
|
1015 |
|
|
|
1016 |
//queue up or complete the event
|
|
|
1017 |
info.iArg1 = a1;
|
|
|
1018 |
info.iArg2 = a2;
|
|
|
1019 |
NotifyAgentsFromEventPid(info);
|
|
|
1020 |
}
|
|
|
1021 |
|
|
|
1022 |
}
|
|
|
1023 |
return EFalse;
|
|
|
1024 |
}
|
|
|
1025 |
|
|
|
1026 |
//
|
|
|
1027 |
// DRM_DebugChannel::RemoveLibrary
|
|
|
1028 |
//
|
|
|
1029 |
TBool DRM_DebugChannel::RemoveLibrary(TAny* a1, TAny* a2)
|
|
|
1030 |
{
|
|
|
1031 |
LOG_EVENT_MSG("DRM_DebugChannel::RemoveLibrary()");
|
|
|
1032 |
DLibrary *aLibrary = (DLibrary*)a1;
|
|
|
1033 |
|
|
|
1034 |
// sanity check
|
|
|
1035 |
if (!aLibrary)
|
|
|
1036 |
{
|
|
|
1037 |
LOG_EVENT_MSG("DRM_DebugChannel::RemoveLibrary called with no library specified");
|
|
|
1038 |
return EFalse;
|
|
|
1039 |
}
|
|
|
1040 |
|
|
|
1041 |
LOG_EVENT_MSG2(("Lib unloaded: %S"), aLibrary->iName);
|
|
|
1042 |
|
|
|
1043 |
// this is called when all handles to this library have been closed. this can happen when a process dies, or when a dll is
|
|
|
1044 |
// unloaded while the process lives on. in former case, we don't need to notify the host debugger because that process is
|
|
|
1045 |
// dying anyway. for the latter case, we do need to notify the host so it can unload the symbolics, etc.
|
|
|
1046 |
|
|
|
1047 |
DThread* aThread = &Kern::CurrentThread();
|
|
|
1048 |
|
|
|
1049 |
if ((aThread) &&
|
|
|
1050 |
(aThread != iClientThread) &&
|
|
|
1051 |
(aThread->iOwningProcess->iId != iClientThread->iOwningProcess->iId))
|
|
|
1052 |
{
|
|
|
1053 |
//the library gets unloaded only when the mapcount is 0.
|
|
|
1054 |
if (aLibrary->iMapCount != 0)
|
|
|
1055 |
return EFalse;
|
|
|
1056 |
|
|
|
1057 |
DCodeSeg* codeSeg = aLibrary->iCodeSeg;
|
|
|
1058 |
if (!codeSeg)
|
|
|
1059 |
{
|
|
|
1060 |
LOG_EVENT_MSG2("Code segment not available for library %S", aLibrary->iName);
|
|
|
1061 |
return EFalse;
|
|
|
1062 |
}
|
|
|
1063 |
|
|
|
1064 |
TModuleMemoryInfo processMemoryInfo;
|
|
|
1065 |
TInt err = codeSeg->GetMemoryInfo(processMemoryInfo, NULL); //passing NULL for the DProcess argument should be ok;
|
|
|
1066 |
if (err != KErrNone)
|
|
|
1067 |
{
|
|
|
1068 |
LOG_EVENT_MSG2("Error in getting memory info: %d", err);
|
|
|
1069 |
return EFalse;
|
|
|
1070 |
}
|
|
|
1071 |
|
|
|
1072 |
TUint32 codeAddress = processMemoryInfo.iCodeBase;
|
|
|
1073 |
TUint32 codeSize = processMemoryInfo.iCodeSize;
|
|
|
1074 |
|
|
|
1075 |
// first invalidate all breakpoints that were set in the library code
|
|
|
1076 |
iBreakManager->InvalidateLibraryBreakPoints(codeAddress, codeSize);
|
|
|
1077 |
DProcess *process = &Kern::CurrentProcess();
|
|
|
1078 |
RArray<SCodeSegEntry>* dynamicCode = &(process->iDynamicCode);
|
|
|
1079 |
|
|
|
1080 |
for (TInt j=0; j<dynamicCode->Count(); j++)
|
|
|
1081 |
{
|
|
|
1082 |
if ((*dynamicCode)[j].iLib == aLibrary)
|
|
|
1083 |
{
|
|
|
1084 |
TDriverEventInfo info;
|
|
|
1085 |
|
|
|
1086 |
info.iEventType = EEventsRemoveLibrary;
|
|
|
1087 |
info.iFileName.Copy(*(aLibrary->iName)); //lib name without uid info
|
|
|
1088 |
//info.iFileName.ZeroTerminate();
|
|
|
1089 |
info.iProcessId = process->iId;
|
|
|
1090 |
info.iProcessIdValid = ETrue;
|
|
|
1091 |
info.iThreadId = 0xFFFFFFFF; // don't care!
|
|
|
1092 |
info.iThreadIdValid = EFalse;
|
|
|
1093 |
// Uid3
|
|
|
1094 |
info.iUids = codeSeg->iUids;
|
|
|
1095 |
info.iUidsValid = ETrue;
|
|
|
1096 |
|
|
|
1097 |
//queue up or complete the event
|
|
|
1098 |
info.iArg1 = a1;
|
|
|
1099 |
info.iArg2 = a2;
|
|
|
1100 |
NotifyAgentsFromEventPid(info);
|
|
|
1101 |
}
|
|
|
1102 |
}
|
|
|
1103 |
}
|
|
|
1104 |
return EFalse;
|
|
|
1105 |
}
|
|
|
1106 |
|
|
|
1107 |
//
|
|
|
1108 |
// DRM_DebugChannel::HandleEventKillThread
|
|
|
1109 |
//
|
|
|
1110 |
TBool DRM_DebugChannel::HandleEventKillThread(TAny* a1, TAny* a2)
|
|
|
1111 |
{
|
|
|
1112 |
DThread* currentThread = &Kern::CurrentThread();
|
|
|
1113 |
|
|
|
1114 |
// a1 should point to the current thread, check this to make sure it does
|
|
|
1115 |
__NK_ASSERT_DEBUG((DThread*)a1 == currentThread);
|
|
|
1116 |
|
|
|
1117 |
TDriverEventInfo info;
|
|
|
1118 |
|
|
|
1119 |
LOG_MSG5(" HandleEventKillThread for thread 0x%x, CritScount=%d, suspCnt=%d, waitObj=0x%x",
|
|
|
1120 |
currentThread->iId,
|
|
|
1121 |
currentThread->iNThread.iCsCount,
|
|
|
1122 |
currentThread->iNThread.iSuspendCount,
|
|
|
1123 |
currentThread->iWaitObj);
|
|
|
1124 |
|
|
|
1125 |
info.iProcessId = currentThread->iOwningProcess->iId;
|
|
|
1126 |
info.iProcessIdValid = ETrue;
|
|
|
1127 |
info.iThreadId = currentThread->iId;
|
|
|
1128 |
info.iThreadIdValid = ETrue;
|
|
|
1129 |
|
|
|
1130 |
TInt err = ReadKernelRegisterValue(currentThread, 14, info.iCurrentPC);
|
|
|
1131 |
if(err != KErrNone)
|
|
|
1132 |
{
|
|
|
1133 |
LOG_EVENT_MSG2("DRM_DebugChannel::HandleEventKillThread - Non-zero error code discarded: %d", err);
|
|
|
1134 |
}
|
|
|
1135 |
|
|
|
1136 |
LOG_MSG5(" HandleEventKillThread for thread exit category=%S reason=%d, exitType=0x%x, PC=0x%x",
|
|
|
1137 |
¤tThread->iExitCategory,
|
|
|
1138 |
currentThread->iExitReason,
|
|
|
1139 |
currentThread->iExitType,
|
|
|
1140 |
info.iCurrentPC);
|
|
|
1141 |
|
|
|
1142 |
if (currentThread->iExitType == EExitPanic)
|
|
|
1143 |
{
|
|
|
1144 |
info.iPanicCategory.Copy(currentThread->iExitCategory);
|
|
|
1145 |
}
|
|
|
1146 |
info.iExceptionNumber = currentThread->iExitReason;
|
|
|
1147 |
info.iExitType = currentThread->iExitType;
|
|
|
1148 |
info.iEventType = EEventsKillThread;
|
|
|
1149 |
info.iThreadFlags = currentThread->iFlags;
|
|
|
1150 |
|
|
|
1151 |
// remove all the breakpoints in this thread, whether we are debugging it or not.
|
|
|
1152 |
iBreakManager->DoRemoveThreadBreaks(info.iThreadId);
|
|
|
1153 |
|
|
|
1154 |
info.iArg1 = a1;
|
|
|
1155 |
info.iArg2 = a2;
|
|
|
1156 |
NotifyAgentsFromEventPid(info);
|
|
|
1157 |
|
|
|
1158 |
return ETrue;
|
|
|
1159 |
}
|
|
|
1160 |
|
|
|
1161 |
//
|
|
|
1162 |
// DRM_DebugChannel::HandleSwException
|
|
|
1163 |
//
|
|
|
1164 |
TBool DRM_DebugChannel::HandleSwException(TAny* a1, TAny* a2)
|
|
|
1165 |
{
|
|
|
1166 |
LOG_EVENT_MSG("DRM_DebugChannel::HandleSwException");
|
|
|
1167 |
TExcType aExcType = (TExcType)(TInt)a1;
|
|
|
1168 |
|
|
|
1169 |
TDriverEventInfo info;
|
|
|
1170 |
|
|
|
1171 |
DThread* currentThread = &Kern::CurrentThread();
|
|
|
1172 |
if (!currentThread)
|
|
|
1173 |
{
|
|
|
1174 |
LOG_MSG("Error getting current thread");
|
|
|
1175 |
__NK_ASSERT_DEBUG(currentThread);
|
|
|
1176 |
return EFalse;
|
|
|
1177 |
}
|
|
|
1178 |
|
|
|
1179 |
info.iProcessId = currentThread->iOwningProcess->iId;
|
|
|
1180 |
info.iProcessIdValid = ETrue;
|
|
|
1181 |
info.iThreadId = currentThread->iId;
|
|
|
1182 |
info.iThreadIdValid = ETrue;
|
|
|
1183 |
TInt err = ReadKernelRegisterValue(currentThread, PC_REGISTER, info.iCurrentPC);
|
|
|
1184 |
if(err != KErrNone)
|
|
|
1185 |
{
|
|
|
1186 |
LOG_EVENT_MSG2("DRM_DebugChannel::HandleSwException - Non-zero error code discarded: %d", err);
|
|
|
1187 |
}
|
|
|
1188 |
info.iExceptionNumber = aExcType;
|
|
|
1189 |
info.iEventType = EEventsSwExc;
|
|
|
1190 |
info.iThreadFlags = currentThread->iFlags;
|
|
|
1191 |
info.iArg1 = a1;
|
|
|
1192 |
info.iArg2 = a2;
|
|
|
1193 |
|
|
|
1194 |
NotifyAgentsFromEventPid(info);
|
|
|
1195 |
|
|
|
1196 |
return EFalse;
|
|
|
1197 |
}
|
|
|
1198 |
|
|
|
1199 |
//
|
|
|
1200 |
// DRM_DebugChannel::HandleHwException
|
|
|
1201 |
//
|
|
|
1202 |
TBool DRM_DebugChannel::HandleHwException(TAny* a1, TAny* a2)
|
|
|
1203 |
{
|
|
|
1204 |
TArmExcInfo* aExcInfo = (TArmExcInfo*)a1;
|
|
|
1205 |
|
|
|
1206 |
// sanity check
|
|
|
1207 |
if (!aExcInfo)
|
|
|
1208 |
{
|
|
|
1209 |
LOG_MSG("DRM_DebugChannel::HandleHwException called with no aExcInfo");
|
|
|
1210 |
__NK_ASSERT_DEBUG(aExcInfo);
|
|
|
1211 |
return EFalse;
|
|
|
1212 |
}
|
|
|
1213 |
|
|
|
1214 |
TDriverEventInfo info;
|
|
|
1215 |
|
|
|
1216 |
DThread* currentThread = &Kern::CurrentThread();
|
|
|
1217 |
|
|
|
1218 |
if (!currentThread)
|
|
|
1219 |
{
|
|
|
1220 |
LOG_MSG("Error getting current thread");
|
|
|
1221 |
__NK_ASSERT_DEBUG(currentThread);
|
|
|
1222 |
return EFalse;
|
|
|
1223 |
}
|
|
|
1224 |
|
|
|
1225 |
info.iProcessId = currentThread->iOwningProcess->iId;
|
|
|
1226 |
info.iProcessIdValid = ETrue;
|
|
|
1227 |
info.iThreadId = currentThread->iId;
|
|
|
1228 |
info.iThreadIdValid = ETrue;
|
|
|
1229 |
info.iRmdArmExcInfo.iFaultAddress= aExcInfo->iFaultAddress;
|
|
|
1230 |
info.iRmdArmExcInfo.iFaultStatus= aExcInfo->iFaultStatus;
|
|
|
1231 |
|
|
|
1232 |
LOG_MSG5("DRM_DebugChannel::HandleHwException current thread = 0x%08x, CritSect count=%d,\n"
|
|
|
1233 |
" iFaultAddress=0x%08x, iFaultStatus=0x%08x",
|
|
|
1234 |
currentThread, currentThread->iNThread.iCsCount, aExcInfo->iFaultAddress, aExcInfo->iFaultStatus);
|
|
|
1235 |
|
|
|
1236 |
|
|
|
1237 |
LOG_MSG3(" HandleHwException CsFunc=%d, suspCount=%d",
|
|
|
1238 |
currentThread->iNThread.iCsFunction, currentThread->iNThread.iSuspendCount );
|
|
|
1239 |
|
|
|
1240 |
info.iRmdArmExcInfo.iR0= aExcInfo->iR0;
|
|
|
1241 |
info.iRmdArmExcInfo.iR1= aExcInfo->iR1;
|
|
|
1242 |
info.iRmdArmExcInfo.iR2= aExcInfo->iR2;
|
|
|
1243 |
info.iRmdArmExcInfo.iR3= aExcInfo->iR3;
|
|
|
1244 |
|
|
|
1245 |
info.iRmdArmExcInfo.iR4= aExcInfo->iR4;
|
|
|
1246 |
info.iRmdArmExcInfo.iR5= aExcInfo->iR5;
|
|
|
1247 |
info.iRmdArmExcInfo.iR6= aExcInfo->iR6;
|
|
|
1248 |
info.iRmdArmExcInfo.iR7= aExcInfo->iR7;
|
|
|
1249 |
info.iRmdArmExcInfo.iR8= aExcInfo->iR8;
|
|
|
1250 |
info.iRmdArmExcInfo.iR9= aExcInfo->iR9;
|
|
|
1251 |
info.iRmdArmExcInfo.iR10= aExcInfo->iR10;
|
|
|
1252 |
info.iRmdArmExcInfo.iR11= aExcInfo->iR11;
|
|
|
1253 |
info.iRmdArmExcInfo.iR12= aExcInfo->iR12;
|
|
|
1254 |
|
|
|
1255 |
info.iRmdArmExcInfo.iR13= aExcInfo->iR13;
|
|
|
1256 |
info.iRmdArmExcInfo.iR14= aExcInfo->iR14;
|
|
|
1257 |
info.iRmdArmExcInfo.iR15= aExcInfo->iR15;
|
|
|
1258 |
|
|
|
1259 |
info.iRmdArmExcInfo.iCpsr= aExcInfo->iCpsr;
|
|
|
1260 |
info.iRmdArmExcInfo.iR13Svc= aExcInfo->iR13Svc;
|
|
|
1261 |
info.iRmdArmExcInfo.iR14Svc= aExcInfo->iR14Svc;
|
|
|
1262 |
info.iRmdArmExcInfo.iSpsrSvc= aExcInfo->iSpsrSvc;
|
|
|
1263 |
LOG_MSG5(" iCpsr=0x%x, iExcCode=0x%x, R14=0x%x, R15=0x%x",
|
|
|
1264 |
aExcInfo->iCpsr, aExcInfo->iExcCode, aExcInfo->iR14, aExcInfo->iR15);
|
|
|
1265 |
|
|
|
1266 |
switch (aExcInfo->iExcCode)
|
|
|
1267 |
{
|
|
|
1268 |
case 0:
|
|
|
1269 |
info.iExceptionNumber = EExcCodeAbort;
|
|
|
1270 |
LOG_MSG(" iExcCode == 0 => EExcCodeAbort");
|
|
|
1271 |
break;
|
|
|
1272 |
case 1:
|
|
|
1273 |
info.iExceptionNumber = EExcDataAbort;
|
|
|
1274 |
LOG_MSG(" iExcCode == 1 => EExcDataAbort");
|
|
|
1275 |
break;
|
|
|
1276 |
case 2:
|
|
|
1277 |
info.iExceptionNumber = EExcInvalidOpCode;
|
|
|
1278 |
LOG_MSG(" iExcCode == 2 => EExcInvalidOpCode");
|
|
|
1279 |
break;
|
|
|
1280 |
default:
|
|
|
1281 |
// new event? Something gone wrong?
|
|
|
1282 |
__NK_ASSERT_DEBUG(EFalse);
|
|
|
1283 |
return EFalse;
|
|
|
1284 |
}
|
|
|
1285 |
|
|
|
1286 |
info.iEventType = EEventsHwExc;
|
|
|
1287 |
info.iThreadFlags = currentThread->iFlags;
|
|
|
1288 |
|
|
|
1289 |
info.iArg1 = a1;
|
|
|
1290 |
info.iArg2 = a2;
|
|
|
1291 |
|
|
|
1292 |
if(EExcInvalidOpCode == info.iExceptionNumber)
|
|
|
1293 |
{
|
|
|
1294 |
return HandleInvalidOpCodeException(info, currentThread);
|
|
|
1295 |
}
|
|
|
1296 |
|
|
|
1297 |
NotifyAgentsFromEventPid(info);
|
|
|
1298 |
return EFalse;
|
|
|
1299 |
}
|
|
|
1300 |
|
|
|
1301 |
//
|
|
|
1302 |
// DRM_DebugChannel::HandUserTrace
|
|
|
1303 |
//
|
|
|
1304 |
TBool DRM_DebugChannel::HandleUserTrace(TAny* a1, TAny* a2)
|
|
|
1305 |
{
|
|
|
1306 |
LOG_EVENT_MSG("DRM_DebugChannel::HandleUserTrace()");
|
|
|
1307 |
|
|
|
1308 |
DThread* currentThread = &Kern::CurrentThread();
|
|
|
1309 |
if (!currentThread)
|
|
|
1310 |
{
|
|
|
1311 |
LOG_EVENT_MSG("Error getting current thread");
|
|
|
1312 |
__NK_ASSERT_DEBUG(currentThread);
|
|
|
1313 |
return EFalse;
|
|
|
1314 |
}
|
|
|
1315 |
|
|
|
1316 |
TDriverEventInfo info;
|
|
|
1317 |
info.iProcessId = currentThread->iOwningProcess->iId;
|
|
|
1318 |
info.iProcessIdValid = ETrue;
|
|
|
1319 |
info.iThreadId = currentThread->iId;
|
|
|
1320 |
info.iThreadIdValid = ETrue;
|
|
|
1321 |
info.iEventType = EEventsUserTrace;
|
|
|
1322 |
info.iArg1 = a1;
|
|
|
1323 |
info.iArg2 = a2;
|
|
|
1324 |
|
|
|
1325 |
TInt err = KErrNone;
|
|
|
1326 |
|
|
|
1327 |
//User Trace info
|
|
|
1328 |
XTRAP(err, XT_DEFAULT, kumemget(info.iUserTraceText, info.iArg1, (TInt)a2));
|
|
|
1329 |
if(KErrNone != err)
|
|
|
1330 |
{
|
|
|
1331 |
return EFalse;
|
|
|
1332 |
}
|
|
|
1333 |
|
|
|
1334 |
info.iMessageStatus = ESingleMessage;
|
|
|
1335 |
|
|
|
1336 |
NotifyAgentsFromEventPid(info);
|
|
|
1337 |
|
|
|
1338 |
return EFalse;
|
|
|
1339 |
}
|
|
|
1340 |
|
|
|
1341 |
//
|
|
|
1342 |
// DRM_DebugChannel::HandleException
|
|
|
1343 |
//
|
|
|
1344 |
TBool DRM_DebugChannel::HandleInvalidOpCodeException(TDriverEventInfo& aEventInfo, DThread* aCurrentThread)
|
|
|
1345 |
{
|
|
|
1346 |
LOG_MSG("DRM_DebugChannel::HandleInvalidOpCodeException()");
|
|
|
1347 |
|
|
|
1348 |
TInt err = KErrNone;
|
|
|
1349 |
|
|
|
1350 |
TUint32 inst = KArmBreakPoint;
|
|
|
1351 |
TInt instSize = 4;
|
|
|
1352 |
|
|
|
1353 |
// change these for thumb mode
|
|
|
1354 |
TUint32 regValue;
|
|
|
1355 |
err = ReadKernelRegisterValue(aCurrentThread, STATUS_REGISTER, regValue);
|
|
|
1356 |
if(err != KErrNone)
|
|
|
1357 |
{
|
|
|
1358 |
LOG_MSG2("DRM_DebugChannel::HandleInvalidOpCodeException - Non-zero error code discarded: %d", err);
|
|
|
1359 |
}
|
|
|
1360 |
|
|
|
1361 |
if (regValue & ECpuThumb)
|
|
|
1362 |
{
|
|
|
1363 |
inst = KThumbBreakPoint;
|
|
|
1364 |
instSize = 2;
|
|
|
1365 |
}
|
|
|
1366 |
|
|
|
1367 |
TUint32 instruction = 0;
|
|
|
1368 |
err = Kern::ThreadRawRead(aCurrentThread, (TUint32 *)aEventInfo.iRmdArmExcInfo.iR15, (TUint8 *)&instruction, instSize);
|
|
|
1369 |
|
|
|
1370 |
if (KErrNone != err)
|
|
|
1371 |
LOG_MSG2("Error reading instruction at currentpc: %d", err);
|
|
|
1372 |
|
|
|
1373 |
if (!memcompare((TUint8 *)&inst, instSize, (TUint8 *)&instruction, instSize))
|
|
|
1374 |
{
|
|
|
1375 |
TInt err = DoSuspendThread(aCurrentThread);
|
|
|
1376 |
if(! ((KErrNone == err) || (KErrAlreadyExists == err)) )
|
|
|
1377 |
{
|
|
|
1378 |
LOG_MSG2("DRM_DebugChannel::HandleInvalidOpCodeException() Thread with id 0x%08x could not be suspended.", aCurrentThread->iId);
|
|
|
1379 |
return EFalse;
|
|
|
1380 |
}
|
|
|
1381 |
|
|
|
1382 |
// the exception was a breakpoint instruction. see if we have a breakpoint at that address
|
|
|
1383 |
TBreakEntry* breakEntry = NULL;
|
|
|
1384 |
do
|
|
|
1385 |
{
|
|
|
1386 |
breakEntry = iBreakManager->GetNextBreak(breakEntry);
|
|
|
1387 |
if (breakEntry && ((breakEntry->iThreadSpecific && breakEntry->iId == aEventInfo.iThreadId) || (!breakEntry->iThreadSpecific && breakEntry->iId == aEventInfo.iProcessId)) && breakEntry->iAddress == aEventInfo.iRmdArmExcInfo.iR15)
|
|
|
1388 |
{
|
|
|
1389 |
LOG_MSG2("Breakpoint with Id %d has been hit", breakEntry->iBreakId);
|
|
|
1390 |
|
|
|
1391 |
TBreakEntry tempBreakEntry = *breakEntry;
|
|
|
1392 |
|
|
|
1393 |
//change the event type to breakpoint type
|
|
|
1394 |
aEventInfo.iEventType = breakEntry->iThreadSpecific ? EEventsBreakPoint : EEventsProcessBreakPoint;
|
|
|
1395 |
|
|
|
1396 |
// enable any breakpoints we had to disable for this thread
|
|
|
1397 |
err = iBreakManager->DoEnableDisabledBreak(aEventInfo.iThreadId);
|
|
|
1398 |
if (KErrNone != err)
|
|
|
1399 |
LOG_MSG2("Error %d enabling disabled breakpoints", err);
|
|
|
1400 |
|
|
|
1401 |
// see if this is a temp breakpoint
|
|
|
1402 |
if (iBreakManager->IsTemporaryBreak(*breakEntry))
|
|
|
1403 |
{
|
|
|
1404 |
// this was a temp breakpoint, so we need to clear it now
|
|
|
1405 |
err = iBreakManager->DoClearBreak(breakEntry->iBreakId);
|
|
|
1406 |
if (KErrNone != err)
|
|
|
1407 |
LOG_MSG2("Error %d clearing temp breakpoint", err);
|
|
|
1408 |
|
|
|
1409 |
// Find out how many steps remain to be done
|
|
|
1410 |
|
|
|
1411 |
// reduce the number of steps to complete by 1
|
|
|
1412 |
tempBreakEntry.iNumSteps--;
|
|
|
1413 |
|
|
|
1414 |
LOG_MSG2("There are %d steps remaining\n", tempBreakEntry.iNumSteps);
|
|
|
1415 |
|
|
|
1416 |
// New. If we have not finished do all the steps, continue stepping and don't notify event
|
|
|
1417 |
if (tempBreakEntry.iNumSteps)
|
|
|
1418 |
{
|
|
|
1419 |
LOG_MSG("Continuing stepping...not telling the agent yet\n");
|
|
|
1420 |
err = DoStepRange(aCurrentThread, aEventInfo.iRmdArmExcInfo.iR15, aEventInfo.iRmdArmExcInfo.iR15, ETrue, tempBreakEntry.iResumeOnceOutOfRange /*EFalse*/, tempBreakEntry.iNumSteps, ETrue);
|
|
|
1421 |
if (err != KErrNone)
|
|
|
1422 |
{
|
|
|
1423 |
LOG_EVENT_MSG("Failed to continue stepping\n");
|
|
|
1424 |
|
|
|
1425 |
// what do we do? might as well stop here and tell the user
|
|
|
1426 |
NotifyAgentsFromEventPid(aEventInfo);
|
|
|
1427 |
|
|
|
1428 |
return ETrue;
|
|
|
1429 |
}
|
|
|
1430 |
|
|
|
1431 |
// continue as though no event occured. No need to suspend/resume anything...
|
|
|
1432 |
LOG_MSG("Continuing to step\n");
|
|
|
1433 |
return ETrue;
|
|
|
1434 |
}
|
|
|
1435 |
|
|
|
1436 |
// Is this a case where we just want to continue?
|
|
|
1437 |
if (tempBreakEntry.iResumeOnceOutOfRange)
|
|
|
1438 |
{
|
|
|
1439 |
LOG_MSG("PC is out of range, continuing thread");
|
|
|
1440 |
DoResumeThread(aCurrentThread);
|
|
|
1441 |
|
|
|
1442 |
return ETrue;
|
|
|
1443 |
}
|
|
|
1444 |
}
|
|
|
1445 |
|
|
|
1446 |
// if the breakpoint is thread specific, make sure it's the right thread
|
|
|
1447 |
// if not, just continue the thread. take special care if it's the debugger
|
|
|
1448 |
// thread. if it hits a regular breakpoint, we NEVER want to stop at it. if
|
|
|
1449 |
// it hits a temp breakpoint, we're probably just stepping past a real breakpoint
|
|
|
1450 |
// and we do need to handle it.
|
|
|
1451 |
TBool needToResume = (tempBreakEntry.iThreadSpecific && tempBreakEntry.iId != aEventInfo.iThreadId) ||
|
|
|
1452 |
(!tempBreakEntry.iThreadSpecific && tempBreakEntry.iId != aEventInfo.iProcessId);
|
|
|
1453 |
|
|
|
1454 |
if (needToResume)
|
|
|
1455 |
{
|
|
|
1456 |
LOG_MSG("breakpoint does not match threadId, calling DoResumeThread");
|
|
|
1457 |
err = DoResumeThread(aCurrentThread);
|
|
|
1458 |
if (KErrNone != err)
|
|
|
1459 |
LOG_MSG2("Error in DoResumeThread: %d", err);
|
|
|
1460 |
|
|
|
1461 |
return EFalse;
|
|
|
1462 |
}
|
|
|
1463 |
|
|
|
1464 |
//normal user break point, just notify the event
|
|
|
1465 |
break;
|
|
|
1466 |
}
|
|
|
1467 |
} while(breakEntry);
|
|
|
1468 |
}
|
|
|
1469 |
|
|
|
1470 |
NotifyAgentsFromEventPid(aEventInfo);
|
|
|
1471 |
|
|
|
1472 |
return (aEventInfo.iEventType == EEventsBreakPoint) || (aEventInfo.iEventType == EEventsProcessBreakPoint);
|
|
|
1473 |
}
|
|
|
1474 |
|
|
|
1475 |
//
|
|
|
1476 |
// DRM_DebugChannel::SetBreak
|
|
|
1477 |
//
|
|
|
1478 |
TInt DRM_DebugChannel::SetBreak(TSetBreakInfo* aBreakInfo)
|
|
|
1479 |
{
|
|
|
1480 |
LOG_MSG("DRM_DebugChannel::SetBreak()");
|
|
|
1481 |
|
|
|
1482 |
TInt err = KErrNone;
|
|
|
1483 |
|
|
|
1484 |
if (!aBreakInfo)
|
|
|
1485 |
{
|
|
|
1486 |
LOG_MSG("DRM_DebugChannel::SetBreak() was passed a NULL argument");
|
|
|
1487 |
return KErrArgument;
|
|
|
1488 |
}
|
|
|
1489 |
|
|
|
1490 |
//User side memory is not accessible directly
|
|
|
1491 |
TSetBreakInfo info;
|
|
|
1492 |
err = Kern::ThreadRawRead(iClientThread, aBreakInfo, (TUint8*)&info, sizeof(TSetBreakInfo));
|
|
|
1493 |
if (err != KErrNone)
|
|
|
1494 |
{
|
|
|
1495 |
LOG_MSG("DRM_DebugChannel::SetBreak() was passed a bad argument");
|
|
|
1496 |
return err;
|
|
|
1497 |
}
|
|
|
1498 |
|
|
|
1499 |
DProcess* process = NULL;
|
|
|
1500 |
NKern::ThreadEnterCS();
|
|
|
1501 |
if(info.iThreadSpecific)
|
|
|
1502 |
{
|
|
|
1503 |
DThread* thread = DebugUtils::OpenThreadHandle(info.iId);
|
|
|
1504 |
if(!thread)
|
|
|
1505 |
{
|
|
|
1506 |
LOG_MSG2("DRM_DebugChannel::SetBreak() Thread with id 0x%08x not found", info.iId);
|
|
|
1507 |
}
|
|
|
1508 |
else
|
|
|
1509 |
{
|
|
|
1510 |
process = DebugUtils::OpenProcessHandle(thread->iOwningProcess->iId);
|
|
|
1511 |
thread->Close(NULL);
|
|
|
1512 |
}
|
|
|
1513 |
}
|
|
|
1514 |
else
|
|
|
1515 |
{
|
|
|
1516 |
process = DebugUtils::OpenProcessHandle(info.iId);
|
|
|
1517 |
if(!process)
|
|
|
1518 |
{
|
|
|
1519 |
LOG_MSG2("DRM_DebugChannel::SetBreak() Process with id 0x%08x not found", info.iId);
|
|
|
1520 |
}
|
|
|
1521 |
}
|
|
|
1522 |
|
|
|
1523 |
if (process == NULL)
|
|
|
1524 |
{
|
|
|
1525 |
NKern::ThreadLeaveCS();
|
|
|
1526 |
return KErrNotFound;
|
|
|
1527 |
}
|
|
|
1528 |
|
|
|
1529 |
TBool found = EFalse;
|
|
|
1530 |
for(TInt i=0; i<iDebugProcessList.Count(); i++)
|
|
|
1531 |
{
|
|
|
1532 |
if(process->iId == iDebugProcessList[i].iId)
|
|
|
1533 |
{
|
|
|
1534 |
found = ETrue;
|
|
|
1535 |
}
|
|
|
1536 |
}
|
|
|
1537 |
|
|
|
1538 |
if(!found)
|
|
|
1539 |
{
|
|
|
1540 |
DCodeSeg* codeSeg = process->iCodeSeg;
|
|
|
1541 |
if (!codeSeg)
|
|
|
1542 |
{
|
|
|
1543 |
LOG_MSG2("DRM_DebugChannel::SetBreak() Code seg for process with id 0x%08x not found", process->iId);
|
|
|
1544 |
err = KErrNotFound;
|
|
|
1545 |
}
|
|
|
1546 |
|
|
|
1547 |
TModuleMemoryInfo memoryInfo;
|
|
|
1548 |
if (!err)
|
|
|
1549 |
{
|
|
|
1550 |
err = codeSeg->GetMemoryInfo(memoryInfo, process);
|
|
|
1551 |
if (err != KErrNone)
|
|
|
1552 |
{
|
|
|
1553 |
LOG_MSG2("DRM_DebugChannel::SetBreak() Error getting memory info for process with id 0x%08x", process->iId);
|
|
|
1554 |
}
|
|
|
1555 |
}
|
|
|
1556 |
|
|
|
1557 |
if (!err)
|
|
|
1558 |
{
|
|
|
1559 |
//add this process to the list of processes that we are debugging
|
|
|
1560 |
TProcessInfo processInfo(process->iId, memoryInfo.iCodeBase, memoryInfo.iCodeSize, memoryInfo.iInitialisedDataBase);
|
|
|
1561 |
iDebugProcessList.Append(processInfo);
|
|
|
1562 |
}
|
|
|
1563 |
}
|
|
|
1564 |
|
|
|
1565 |
process->Close(NULL);
|
|
|
1566 |
NKern::ThreadLeaveCS();
|
|
|
1567 |
|
|
|
1568 |
if (!info.iBreakId) //first check if the iId address is valid
|
|
|
1569 |
return KErrArgument;
|
|
|
1570 |
|
|
|
1571 |
if (err == KErrNone)
|
|
|
1572 |
{
|
|
|
1573 |
TInt32 iBreakId;
|
|
|
1574 |
|
|
|
1575 |
err = iBreakManager->DoSetBreak(iBreakId, info.iId, info.iThreadSpecific, info.iAddress, info.iMode );
|
|
|
1576 |
|
|
|
1577 |
if (err == KErrNone)
|
|
|
1578 |
{
|
|
|
1579 |
err = Kern::ThreadRawWrite(iClientThread, (TUint8 *)info.iBreakId, &iBreakId, sizeof(TInt32), iClientThread);
|
|
|
1580 |
}
|
|
|
1581 |
}
|
|
|
1582 |
|
|
|
1583 |
return err;
|
|
|
1584 |
}
|
|
|
1585 |
|
|
|
1586 |
//
|
|
|
1587 |
// DRM_DebugChannel::StepRange
|
|
|
1588 |
//
|
|
|
1589 |
TInt DRM_DebugChannel::StepRange(DThread* aThread, TRM_DebugStepInfo* aStepInfo)
|
|
|
1590 |
{
|
|
|
1591 |
LOG_MSG("DRM_DebugChannel::StepRange()");
|
|
|
1592 |
|
|
|
1593 |
TInt err = KErrNone;
|
|
|
1594 |
|
|
|
1595 |
if (!aStepInfo)
|
|
|
1596 |
return KErrArgument;
|
|
|
1597 |
|
|
|
1598 |
TRM_DebugStepInfo info(0, 0, 0);
|
|
|
1599 |
err = Kern::ThreadRawRead(iClientThread, aStepInfo, (TUint8*)&info, sizeof(TRM_DebugStepInfo));
|
|
|
1600 |
|
|
|
1601 |
if (err != KErrNone)
|
|
|
1602 |
return err;
|
|
|
1603 |
|
|
|
1604 |
err = DoStepRange(aThread, info.iStartAddress, info.iStopAddress, info.iStepInto, EFalse, ETrue);
|
|
|
1605 |
|
|
|
1606 |
return err;
|
|
|
1607 |
}
|
|
|
1608 |
|
|
|
1609 |
/**
|
|
|
1610 |
Read memory from a target thread and return the data to the client. If the
|
|
|
1611 |
memory block has breakpoints in it then the correct values are placed in the
|
|
|
1612 |
returned data
|
|
|
1613 |
|
|
|
1614 |
@param aThread pointer to thread whose memory space the memory is to be read from
|
|
|
1615 |
@param aMemoryInfo information about what memory to read
|
|
|
1616 |
|
|
|
1617 |
@return KErrNone if memory read successfully,
|
|
|
1618 |
KErrArgument if aMemoryInfo is not initialised correctly,
|
|
|
1619 |
KErrNoMemory if a temporary buffer could not be allocated,
|
|
|
1620 |
KErrBadHandle if aThread is invalid,
|
|
|
1621 |
or another of the system wide error codes
|
|
|
1622 |
*/
|
|
|
1623 |
TInt DRM_DebugChannel::ReadMemory(DThread* aThread, TRM_DebugMemoryInfo* aMemoryInfo)
|
|
|
1624 |
{
|
|
|
1625 |
LOG_MSG("DRM_DebugChannel::ReadMemory()");
|
|
|
1626 |
|
|
|
1627 |
TInt err = KErrNone;
|
|
|
1628 |
|
|
|
1629 |
if (!aMemoryInfo)
|
|
|
1630 |
return KErrArgument;
|
|
|
1631 |
|
|
|
1632 |
TRM_DebugMemoryInfo info(0, 0, 0);
|
|
|
1633 |
err = Kern::ThreadRawRead(iClientThread, aMemoryInfo, (TUint8*)&info, sizeof(TRM_DebugMemoryInfo));
|
|
|
1634 |
if (err != KErrNone)
|
|
|
1635 |
{
|
|
|
1636 |
LOG_MSG2("DRM_DebugChannel::ReadMemory returning error %d after Kern::ThreadRawRead()", err);
|
|
|
1637 |
return err;
|
|
|
1638 |
}
|
|
|
1639 |
|
|
|
1640 |
if (!info.iData)
|
|
|
1641 |
return KErrArgument;
|
|
|
1642 |
|
|
|
1643 |
NKern::ThreadEnterCS();
|
|
|
1644 |
TUint8 *data = (TUint8*)Kern::Alloc(info.iLength);
|
|
|
1645 |
NKern::ThreadLeaveCS();
|
|
|
1646 |
if (!data)
|
|
|
1647 |
{
|
|
|
1648 |
return KErrNoMemory;
|
|
|
1649 |
}
|
|
|
1650 |
|
|
|
1651 |
TPtr8 dataDes(data, info.iLength);
|
|
|
1652 |
|
|
|
1653 |
err = DoReadMemory(aThread, info.iAddress, info.iLength, dataDes);
|
|
|
1654 |
if (err == KErrNone)
|
|
|
1655 |
{
|
|
|
1656 |
err = Kern::ThreadDesWrite(iClientThread, info.iData, dataDes, 0, KChunkShiftBy0, iClientThread);
|
|
|
1657 |
if (err)
|
|
|
1658 |
{
|
|
|
1659 |
LOG_MSG2("DRM_DebugChannel::ReadMemory - Kern::ThreadDesWrite() returned error %d", err);
|
|
|
1660 |
}
|
|
|
1661 |
}
|
|
|
1662 |
|
|
|
1663 |
NKern::ThreadEnterCS();
|
|
|
1664 |
Kern::Free(data);
|
|
|
1665 |
NKern::ThreadLeaveCS();
|
|
|
1666 |
|
|
|
1667 |
return err;
|
|
|
1668 |
}
|
|
|
1669 |
|
|
|
1670 |
/**
|
|
|
1671 |
Attempt to write memory to aThread's address space
|
|
|
1672 |
|
|
|
1673 |
@param aThread thread to whose address space memory is to be written
|
|
|
1674 |
@param aMemoryInfo memory info object representing the data to write
|
|
|
1675 |
|
|
|
1676 |
@return KErrNone if memory written successfully,
|
|
|
1677 |
KErrNoMemory if memory could not be allocated
|
|
|
1678 |
KErrArgument if aMemoryInfo is NULL, if aMemoryInfo.iData is NULL,
|
|
|
1679 |
if aMemoryInfo.iLength is greater than than the length of the passed
|
|
|
1680 |
in descrptor
|
|
|
1681 |
KErrBadHandle if aThread is invalid,
|
|
|
1682 |
or another of the system wide error codes
|
|
|
1683 |
*/
|
|
|
1684 |
TInt DRM_DebugChannel::WriteMemory(DThread* aThread, TRM_DebugMemoryInfo* aMemoryInfo)
|
|
|
1685 |
{
|
|
|
1686 |
LOG_MSG("DRM_DebugChannel::WriteMemory()");
|
|
|
1687 |
|
|
|
1688 |
TInt err = KErrNone;
|
|
|
1689 |
|
|
|
1690 |
if (!aMemoryInfo)
|
|
|
1691 |
return KErrArgument;
|
|
|
1692 |
|
|
|
1693 |
TRM_DebugMemoryInfo info(0, 0, 0);
|
|
|
1694 |
err = Kern::ThreadRawRead(iClientThread, aMemoryInfo, (TUint8*)&info, sizeof(TRM_DebugMemoryInfo));
|
|
|
1695 |
if (err != KErrNone)
|
|
|
1696 |
return err;
|
|
|
1697 |
|
|
|
1698 |
if (!info.iData)
|
|
|
1699 |
return KErrArgument;
|
|
|
1700 |
|
|
|
1701 |
NKern::ThreadEnterCS();
|
|
|
1702 |
TUint8 *data = (TUint8*)Kern::Alloc(info.iLength);
|
|
|
1703 |
NKern::ThreadLeaveCS();
|
|
|
1704 |
if (!data)
|
|
|
1705 |
{
|
|
|
1706 |
return KErrNoMemory;
|
|
|
1707 |
}
|
|
|
1708 |
|
|
|
1709 |
TPtr8 dataDes(data, info.iLength);
|
|
|
1710 |
|
|
|
1711 |
err = Kern::ThreadDesRead(iClientThread, info.iData, dataDes, 0);
|
|
|
1712 |
if (err == KErrNone)
|
|
|
1713 |
{
|
|
|
1714 |
err = DoWriteMemory(aThread, info.iAddress, info.iLength, dataDes);
|
|
|
1715 |
}
|
|
|
1716 |
|
|
|
1717 |
NKern::ThreadEnterCS();
|
|
|
1718 |
Kern::Free(data);
|
|
|
1719 |
NKern::ThreadLeaveCS();
|
|
|
1720 |
|
|
|
1721 |
return err;
|
|
|
1722 |
}
|
|
|
1723 |
|
|
|
1724 |
//
|
|
|
1725 |
// DRM_DebugChannel::ReadRegisters
|
|
|
1726 |
//
|
|
|
1727 |
TInt DRM_DebugChannel::ReadRegistersLegacy(DThread* aThread, TRM_DebugRegisterInfo* aRegisterInfo)
|
|
|
1728 |
{
|
|
|
1729 |
LOG_MSG("DRM_DebugChannel::ReadRegistersLegacy()");
|
|
|
1730 |
|
|
|
1731 |
TInt err = KErrNone;
|
|
|
1732 |
|
|
|
1733 |
if (!aRegisterInfo)
|
|
|
1734 |
return KErrArgument;
|
|
|
1735 |
|
|
|
1736 |
TRM_DebugRegisterInfo info(0, 0, 0);
|
|
|
1737 |
err = Kern::ThreadRawRead(iClientThread, aRegisterInfo, (TUint8*)&info, sizeof(TRM_DebugRegisterInfo));
|
|
|
1738 |
if (err != KErrNone)
|
|
|
1739 |
return err;
|
|
|
1740 |
|
|
|
1741 |
if (!info.iValues)
|
|
|
1742 |
return KErrArgument;
|
|
|
1743 |
|
|
|
1744 |
TUint length = (info.iLastRegister - info.iFirstRegister + 1) * 4;
|
|
|
1745 |
|
|
|
1746 |
NKern::ThreadEnterCS();
|
|
|
1747 |
TUint8 *values = (TUint8*)Kern::Alloc(length);
|
|
|
1748 |
NKern::ThreadLeaveCS();
|
|
|
1749 |
if (!values)
|
|
|
1750 |
{
|
|
|
1751 |
return KErrNoMemory;
|
|
|
1752 |
}
|
|
|
1753 |
|
|
|
1754 |
TPtr8 valuesDes(values, length);
|
|
|
1755 |
|
|
|
1756 |
err = DoReadRegisters(aThread, info.iFirstRegister, info.iLastRegister, valuesDes);
|
|
|
1757 |
if (err == KErrNone)
|
|
|
1758 |
{
|
|
|
1759 |
err = Kern::ThreadDesWrite(iClientThread, info.iValues, valuesDes, 0, KChunkShiftBy0, iClientThread);
|
|
|
1760 |
}
|
|
|
1761 |
|
|
|
1762 |
NKern::ThreadEnterCS();
|
|
|
1763 |
Kern::Free(values);
|
|
|
1764 |
NKern::ThreadLeaveCS();
|
|
|
1765 |
|
|
|
1766 |
return err;
|
|
|
1767 |
}
|
|
|
1768 |
|
|
|
1769 |
/**
|
|
|
1770 |
Get listing information.
|
|
|
1771 |
|
|
|
1772 |
@param aListInformation pointer to a TListInformation object containing the
|
|
|
1773 |
user specified listings information
|
|
|
1774 |
|
|
|
1775 |
@return KErrNone on success,
|
|
|
1776 |
KErrTooBig if the kernel's data is too big to fit in the passed buffer,
|
|
|
1777 |
KErrArgument if aListInformation is NULL,
|
|
|
1778 |
or one of the other system-wide error codes
|
|
|
1779 |
*/
|
|
|
1780 |
TInt DRM_DebugChannel::GetList(TListInformation* aListInformation) const
|
|
|
1781 |
{
|
|
|
1782 |
LOG_MSG("DRM_DebugChannel::GetList()");
|
|
|
1783 |
|
|
|
1784 |
TInt err = KErrNone;
|
|
|
1785 |
|
|
|
1786 |
if(aListInformation == NULL)
|
|
|
1787 |
{
|
|
|
1788 |
return KErrArgument;
|
|
|
1789 |
}
|
|
|
1790 |
|
|
|
1791 |
//read DSS' data into local structure
|
|
|
1792 |
TListInformation info;
|
|
|
1793 |
err = Kern::ThreadRawRead(iClientThread, aListInformation, (TUint8*)&info, sizeof(TListInformation));
|
|
|
1794 |
if(err != KErrNone)
|
|
|
1795 |
{
|
|
|
1796 |
return err;
|
|
|
1797 |
}
|
|
|
1798 |
|
|
|
1799 |
//check arguments
|
|
|
1800 |
TPtr8 buffer(NULL, 0);
|
|
|
1801 |
err = AllocAndReadDes(iClientThread, *info.iBuffer, buffer);
|
|
|
1802 |
if(err != KErrNone)
|
|
|
1803 |
{
|
|
|
1804 |
//need to free the buffer if it was allocated
|
|
|
1805 |
if(err != KErrNoMemory)
|
|
|
1806 |
{
|
|
|
1807 |
NKern::ThreadEnterCS();
|
|
|
1808 |
Kern::Free((TAny*)buffer.Ptr());
|
|
|
1809 |
NKern::ThreadLeaveCS();
|
|
|
1810 |
}
|
|
|
1811 |
return err;
|
|
|
1812 |
}
|
|
|
1813 |
|
|
|
1814 |
//get the list
|
|
|
1815 |
TUint32 dataSize = 0;
|
|
|
1816 |
TListManager manager;
|
|
|
1817 |
err = KErrArgument;
|
|
|
1818 |
switch(info.iType)
|
|
|
1819 |
{
|
|
|
1820 |
case EXipLibraries:
|
|
|
1821 |
if(Debug::EScopeGlobal == info.iListScope)
|
|
|
1822 |
{
|
|
|
1823 |
err = manager.GetXipLibrariesList(buffer, dataSize);
|
|
|
1824 |
}
|
|
|
1825 |
break;
|
|
|
1826 |
|
|
|
1827 |
case EThreads:
|
|
|
1828 |
if(Debug::EScopeGlobal == info.iListScope)
|
|
|
1829 |
{
|
|
|
1830 |
err = manager.GetGlobalThreadList(buffer, dataSize);
|
|
|
1831 |
}
|
|
|
1832 |
else if(Debug::EScopeProcessSpecific == info.iListScope)
|
|
|
1833 |
{
|
|
|
1834 |
err = manager.GetThreadListForProcess(buffer, dataSize, info.iTargetId);
|
|
|
1835 |
}
|
|
|
1836 |
else if(Debug::EScopeThreadSpecific == info.iListScope)
|
|
|
1837 |
{
|
|
|
1838 |
err = manager.GetThreadListForThread(buffer, dataSize, info.iTargetId);
|
|
|
1839 |
}
|
|
|
1840 |
break;
|
|
|
1841 |
|
|
|
1842 |
case EProcesses:
|
|
|
1843 |
if(Debug::EScopeGlobal == info.iListScope)
|
|
|
1844 |
{
|
|
|
1845 |
err = manager.GetProcessList(buffer, dataSize);
|
|
|
1846 |
}
|
|
|
1847 |
break;
|
|
|
1848 |
|
|
|
1849 |
case ECodeSegs:
|
|
|
1850 |
if(Debug::EScopeGlobal == info.iListScope)
|
|
|
1851 |
{
|
|
|
1852 |
err = manager.GetGlobalCodeSegList(buffer, dataSize);
|
|
|
1853 |
}
|
|
|
1854 |
else if(Debug::EScopeProcessSpecific == info.iListScope)
|
|
|
1855 |
{
|
|
|
1856 |
err = manager.GetCodeSegListForProcess(buffer, dataSize, info.iTargetId);
|
|
|
1857 |
}
|
|
|
1858 |
else if(Debug::EScopeThreadSpecific == info.iListScope)
|
|
|
1859 |
{
|
|
|
1860 |
err = manager.GetCodeSegListForThread(buffer, dataSize, info.iTargetId);
|
|
|
1861 |
}
|
|
|
1862 |
break;
|
|
|
1863 |
|
|
|
1864 |
default:
|
|
|
1865 |
err = KErrNotSupported;
|
|
|
1866 |
}
|
|
|
1867 |
|
|
|
1868 |
if(err == KErrNone)
|
|
|
1869 |
{
|
|
|
1870 |
//if no error then write the buffer back
|
|
|
1871 |
err = Kern::ThreadDesWrite(iClientThread, info.iBuffer, buffer, 0, KChunkShiftBy0, iClientThread);
|
|
|
1872 |
}
|
|
|
1873 |
|
|
|
1874 |
//write back the size of the data regardless of any error
|
|
|
1875 |
TInt writeErr = Kern::ThreadRawWrite(iClientThread, info.iDataSize, (TUint8*)&dataSize, sizeof(TUint32), iClientThread);
|
|
|
1876 |
if(writeErr != KErrNone)
|
|
|
1877 |
{
|
|
|
1878 |
//if there was an error writing the size return that error instead
|
|
|
1879 |
err = writeErr;
|
|
|
1880 |
}
|
|
|
1881 |
|
|
|
1882 |
//free the buffer
|
|
|
1883 |
NKern::ThreadEnterCS();
|
|
|
1884 |
Kern::Free((TAny*)buffer.Ptr());
|
|
|
1885 |
NKern::ThreadLeaveCS();
|
|
|
1886 |
|
|
|
1887 |
return err;
|
|
|
1888 |
}
|
|
|
1889 |
|
|
|
1890 |
/**
|
|
|
1891 |
Read registers and store register data in aRegisterInfo
|
|
|
1892 |
|
|
|
1893 |
@param aThread thread to read registers from
|
|
|
1894 |
@param aRegisterInfo structure specifying which registers to read and providing
|
|
|
1895 |
descriptors to write the register data into
|
|
|
1896 |
|
|
|
1897 |
@return KErrNone if registers were read successfully. Note that this does not
|
|
|
1898 |
mean that all the registers could be read, the
|
|
|
1899 |
aRegisterInfo.iRegisterFlags array should be checked as to whether each
|
|
|
1900 |
individual register could be read,
|
|
|
1901 |
KErrArgument if aRegisterInfo is NULL, or if any of the pointers that
|
|
|
1902 |
are members of aRegisterInfo are NULL, if an unknown register is
|
|
|
1903 |
specified or if the passed in register values buffer is too small
|
|
|
1904 |
KErrNoMemory if there is insufficient memory,
|
|
|
1905 |
KErrDied, if the thread with thread ID aThreadId is dead
|
|
|
1906 |
*/
|
|
|
1907 |
TInt DRM_DebugChannel::ReadRegisters(DThread* aThread, TRM_DebugRegisterInformation* aRegisterInfo) const
|
|
|
1908 |
{
|
|
|
1909 |
LOG_MSG("DRM_DebugChannel::ReadRegisters()");
|
|
|
1910 |
|
|
|
1911 |
TInt err = KErrNone;
|
|
|
1912 |
|
|
|
1913 |
if (!aRegisterInfo)
|
|
|
1914 |
return KErrArgument;
|
|
|
1915 |
|
|
|
1916 |
TRM_DebugRegisterInformation info;
|
|
|
1917 |
err = Kern::ThreadRawRead(iClientThread, aRegisterInfo, (TUint8*)&info, sizeof(TRM_DebugRegisterInformation));
|
|
|
1918 |
if (err != KErrNone)
|
|
|
1919 |
return err;
|
|
|
1920 |
|
|
|
1921 |
if ((!info.iRegisterIds) || (!info.iRegisterValues) || (!info.iRegisterFlags))
|
|
|
1922 |
return KErrArgument;
|
|
|
1923 |
|
|
|
1924 |
//read ids from client thread
|
|
|
1925 |
TPtr8 ids(NULL, 0);
|
|
|
1926 |
err = AllocAndReadDes(iClientThread, *info.iRegisterIds, ids);
|
|
|
1927 |
if(err != KErrNone)
|
|
|
1928 |
{
|
|
|
1929 |
if(err == KErrNoMemory)
|
|
|
1930 |
{
|
|
|
1931 |
NKern::ThreadEnterCS();
|
|
|
1932 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
1933 |
NKern::ThreadLeaveCS();
|
|
|
1934 |
}
|
|
|
1935 |
return err;
|
|
|
1936 |
}
|
|
|
1937 |
|
|
|
1938 |
//read values from client thread
|
|
|
1939 |
TPtr8 values(NULL, 0);
|
|
|
1940 |
err = AllocAndReadDes(iClientThread, *info.iRegisterValues, values, EFalse);
|
|
|
1941 |
if(err != KErrNone)
|
|
|
1942 |
{
|
|
|
1943 |
if(err == KErrNoMemory)
|
|
|
1944 |
{
|
|
|
1945 |
NKern::ThreadEnterCS();
|
|
|
1946 |
Kern::Free((TAny*)values.Ptr());
|
|
|
1947 |
NKern::ThreadLeaveCS();
|
|
|
1948 |
}
|
|
|
1949 |
|
|
|
1950 |
NKern::ThreadEnterCS();
|
|
|
1951 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
1952 |
NKern::ThreadLeaveCS();
|
|
|
1953 |
return err;
|
|
|
1954 |
}
|
|
|
1955 |
|
|
|
1956 |
//read flags from client thread
|
|
|
1957 |
TPtr8 flags(NULL, 0);
|
|
|
1958 |
err = AllocAndReadDes(iClientThread, *info.iRegisterFlags, flags, EFalse);
|
|
|
1959 |
if(err != KErrNone)
|
|
|
1960 |
{
|
|
|
1961 |
if(err == KErrNoMemory)
|
|
|
1962 |
{
|
|
|
1963 |
NKern::ThreadEnterCS();
|
|
|
1964 |
Kern::Free((TAny*)flags.Ptr());
|
|
|
1965 |
NKern::ThreadLeaveCS();
|
|
|
1966 |
}
|
|
|
1967 |
NKern::ThreadEnterCS();
|
|
|
1968 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
1969 |
Kern::Free((TAny*)values.Ptr());
|
|
|
1970 |
NKern::ThreadLeaveCS();
|
|
|
1971 |
return err;
|
|
|
1972 |
}
|
|
|
1973 |
|
|
|
1974 |
err = DoReadRegisters(aThread, ids, values, flags);
|
|
|
1975 |
if (err == KErrNone)
|
|
|
1976 |
{
|
|
|
1977 |
err = Kern::ThreadDesWrite(iClientThread, info.iRegisterValues, values, 0, KChunkShiftBy0, iClientThread);
|
|
|
1978 |
if(err == KErrNone)
|
|
|
1979 |
{
|
|
|
1980 |
err = Kern::ThreadDesWrite(iClientThread, info.iRegisterFlags, flags, 0, KChunkShiftBy0, iClientThread);
|
|
|
1981 |
}
|
|
|
1982 |
}
|
|
|
1983 |
|
|
|
1984 |
NKern::ThreadEnterCS();
|
|
|
1985 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
1986 |
Kern::Free((TAny*)values.Ptr());
|
|
|
1987 |
Kern::Free((TAny*)flags.Ptr());
|
|
|
1988 |
NKern::ThreadLeaveCS();
|
|
|
1989 |
|
|
|
1990 |
return err;
|
|
|
1991 |
}
|
|
|
1992 |
|
|
|
1993 |
/**
|
|
|
1994 |
@deprecated use DRM_DebugChannel::WriteRegisters(DThread* aThread, TRM_DebugRegisterInformation* aRegisterInfo) instead
|
|
|
1995 |
*/
|
|
|
1996 |
TInt DRM_DebugChannel::WriteRegistersLegacy(DThread* aThread, const TRM_DebugRegisterInfo* aRegisterInfo)
|
|
|
1997 |
{
|
|
|
1998 |
LOG_MSG("DRM_DebugChannel::WriteRegistersLegacy()");
|
|
|
1999 |
|
|
|
2000 |
TInt err = KErrNone;
|
|
|
2001 |
|
|
|
2002 |
if (!aRegisterInfo)
|
|
|
2003 |
return KErrArgument;
|
|
|
2004 |
|
|
|
2005 |
TRM_DebugRegisterInfo info(0, 0, 0);
|
|
|
2006 |
err = Kern::ThreadRawRead(iClientThread, aRegisterInfo, (TUint8*)&info, sizeof(TRM_DebugRegisterInfo));
|
|
|
2007 |
if (err != KErrNone)
|
|
|
2008 |
return err;
|
|
|
2009 |
|
|
|
2010 |
if (!info.iValues)
|
|
|
2011 |
return KErrArgument;
|
|
|
2012 |
|
|
|
2013 |
TUint length = (info.iLastRegister - info.iFirstRegister + 1) * 4;
|
|
|
2014 |
|
|
|
2015 |
NKern::ThreadEnterCS();
|
|
|
2016 |
TUint8 *values = (TUint8*)Kern::Alloc(length);
|
|
|
2017 |
NKern::ThreadLeaveCS();
|
|
|
2018 |
if (!values)
|
|
|
2019 |
{
|
|
|
2020 |
return KErrNoMemory;
|
|
|
2021 |
}
|
|
|
2022 |
|
|
|
2023 |
TPtr8 valuesDes(values, length);
|
|
|
2024 |
|
|
|
2025 |
err = Kern::ThreadDesRead(iClientThread, info.iValues, valuesDes, 0);
|
|
|
2026 |
if (err == KErrNone)
|
|
|
2027 |
{
|
|
|
2028 |
err = DoWriteRegisters(aThread, info.iFirstRegister, info.iLastRegister, valuesDes);
|
|
|
2029 |
}
|
|
|
2030 |
|
|
|
2031 |
NKern::ThreadEnterCS();
|
|
|
2032 |
Kern::Free(values);
|
|
|
2033 |
NKern::ThreadLeaveCS();
|
|
|
2034 |
|
|
|
2035 |
return err;
|
|
|
2036 |
}
|
|
|
2037 |
|
|
|
2038 |
/**
|
|
|
2039 |
Write registers and store flags data in aRegisterInfo
|
|
|
2040 |
|
|
|
2041 |
@param aThread thread to write registers to
|
|
|
2042 |
@param aRegisterInfo structure specifying which registers to write and providing
|
|
|
2043 |
descriptors to write the register flags data into
|
|
|
2044 |
|
|
|
2045 |
@return KErrNone if registers were written successfully. Note that this does not
|
|
|
2046 |
mean that all the registers could be written, the flags array
|
|
|
2047 |
should be checked as to whether each individual register could be read,
|
|
|
2048 |
KErrArgument if aRegisterInfo is NULL, or if any of the pointers that
|
|
|
2049 |
are members of aRegisterInfo are NULL, if an unknown register is
|
|
|
2050 |
specified or if the passed in register values buffer is too small, or
|
|
|
2051 |
if aThread is NULL,
|
|
|
2052 |
KErrGeneral if there was a problem initialising the register set,
|
|
|
2053 |
KErrNoMemory if there is insufficient memory,
|
|
|
2054 |
KErrDied, if the thread with thread ID aThreadId is dead
|
|
|
2055 |
*/
|
|
|
2056 |
TInt DRM_DebugChannel::WriteRegisters(DThread* aThread, TRM_DebugRegisterInformation* aRegisterInfo) const
|
|
|
2057 |
{
|
|
|
2058 |
LOG_MSG("DRM_DebugChannel::WriteRegisters()");
|
|
|
2059 |
|
|
|
2060 |
TInt err = KErrNone;
|
|
|
2061 |
|
|
|
2062 |
if (!aRegisterInfo)
|
|
|
2063 |
return KErrArgument;
|
|
|
2064 |
|
|
|
2065 |
TRM_DebugRegisterInformation info;
|
|
|
2066 |
err = Kern::ThreadRawRead(iClientThread, aRegisterInfo, (TUint8*)&info, sizeof(TRM_DebugRegisterInformation));
|
|
|
2067 |
if (err != KErrNone)
|
|
|
2068 |
return err;
|
|
|
2069 |
|
|
|
2070 |
if ((!info.iRegisterIds) || (!info.iRegisterValues) ||(!info.iRegisterFlags))
|
|
|
2071 |
return KErrArgument;
|
|
|
2072 |
|
|
|
2073 |
//read ids from client thread
|
|
|
2074 |
TPtr8 ids(NULL, 0);
|
|
|
2075 |
err = AllocAndReadDes(iClientThread, *info.iRegisterIds, ids);
|
|
|
2076 |
if(err != KErrNone)
|
|
|
2077 |
{
|
|
|
2078 |
if(err == KErrNoMemory)
|
|
|
2079 |
{
|
|
|
2080 |
NKern::ThreadEnterCS();
|
|
|
2081 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
2082 |
NKern::ThreadLeaveCS();
|
|
|
2083 |
}
|
|
|
2084 |
return err;
|
|
|
2085 |
}
|
|
|
2086 |
|
|
|
2087 |
//read values from client thread
|
|
|
2088 |
TPtr8 values(NULL, 0);
|
|
|
2089 |
err = AllocAndReadDes(iClientThread, *info.iRegisterValues, values);
|
|
|
2090 |
if(err != KErrNone)
|
|
|
2091 |
{
|
|
|
2092 |
if(err == KErrNoMemory)
|
|
|
2093 |
{
|
|
|
2094 |
NKern::ThreadEnterCS();
|
|
|
2095 |
Kern::Free((TAny*)values.Ptr());
|
|
|
2096 |
NKern::ThreadLeaveCS();
|
|
|
2097 |
}
|
|
|
2098 |
NKern::ThreadEnterCS();
|
|
|
2099 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
2100 |
NKern::ThreadLeaveCS();
|
|
|
2101 |
return err;
|
|
|
2102 |
}
|
|
|
2103 |
|
|
|
2104 |
//read flags from client thread
|
|
|
2105 |
TPtr8 flags(NULL, 0);
|
|
|
2106 |
err = AllocAndReadDes(iClientThread, *info.iRegisterFlags, flags, EFalse);
|
|
|
2107 |
if(err != KErrNone)
|
|
|
2108 |
{
|
|
|
2109 |
if(err == KErrNoMemory)
|
|
|
2110 |
{
|
|
|
2111 |
NKern::ThreadEnterCS();
|
|
|
2112 |
Kern::Free((TAny*)flags.Ptr());
|
|
|
2113 |
NKern::ThreadLeaveCS();
|
|
|
2114 |
}
|
|
|
2115 |
NKern::ThreadEnterCS();
|
|
|
2116 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
2117 |
Kern::Free((TAny*)values.Ptr());
|
|
|
2118 |
NKern::ThreadLeaveCS();
|
|
|
2119 |
return err;
|
|
|
2120 |
}
|
|
|
2121 |
|
|
|
2122 |
err = DoWriteRegisters(aThread, ids, values, flags);
|
|
|
2123 |
if(err == KErrNone)
|
|
|
2124 |
{
|
|
|
2125 |
err = Kern::ThreadDesWrite(iClientThread, info.iRegisterFlags, flags, 0, KChunkShiftBy0, iClientThread);
|
|
|
2126 |
}
|
|
|
2127 |
|
|
|
2128 |
NKern::ThreadEnterCS();
|
|
|
2129 |
Kern::Free((TAny*)ids.Ptr());
|
|
|
2130 |
Kern::Free((TAny*)values.Ptr());
|
|
|
2131 |
Kern::Free((TAny*)flags.Ptr());
|
|
|
2132 |
NKern::ThreadLeaveCS();
|
|
|
2133 |
|
|
|
2134 |
return err;
|
|
|
2135 |
}
|
|
|
2136 |
|
|
|
2137 |
/**
|
|
|
2138 |
Suspends execution of the specified thread.
|
|
|
2139 |
|
|
|
2140 |
@param aThread thread to resume
|
|
|
2141 |
|
|
|
2142 |
@return KErrNone if there were no problems or KErrArgument if aThread is NULL
|
|
|
2143 |
*/
|
|
|
2144 |
TInt DRM_DebugChannel::DoSuspendThread(DThread *aThread)
|
|
|
2145 |
{
|
|
|
2146 |
LOG_MSG("DRM_DebugChannel::DoSuspendThread()");
|
|
|
2147 |
|
|
|
2148 |
if (!aThread)
|
|
|
2149 |
{
|
|
|
2150 |
LOG_MSG("Invalid dthread object");
|
|
|
2151 |
return KErrArgument;
|
|
|
2152 |
}
|
|
|
2153 |
|
|
|
2154 |
return TheDProcessTracker.SuspendThread(aThread);
|
|
|
2155 |
}
|
|
|
2156 |
|
|
|
2157 |
/**
|
|
|
2158 |
Resumes execution of the specified thread.
|
|
|
2159 |
|
|
|
2160 |
@param aThread thread to resume
|
|
|
2161 |
|
|
|
2162 |
@return KErrNone if there were no problems, KErrArgument if aThread is NULL
|
|
|
2163 |
or an error value returned from DoStepRange()
|
|
|
2164 |
*/
|
|
|
2165 |
TInt DRM_DebugChannel::DoResumeThread(DThread *aThread)
|
|
|
2166 |
{
|
|
|
2167 |
if (!aThread)
|
|
|
2168 |
return KErrArgument;
|
|
|
2169 |
|
|
|
2170 |
// get the current PC
|
|
|
2171 |
TUint32 currentPC;
|
|
|
2172 |
TInt err = ReadKernelRegisterValue(aThread, PC_REGISTER, currentPC);
|
|
|
2173 |
if(err != KErrNone)
|
|
|
2174 |
{
|
|
|
2175 |
LOG_MSG2("DRM_DebugChannel::DoResumeThread : Read PC reg error %d.", err);
|
|
|
2176 |
// Set to this value because 0 is dangerous since structures are usually 0-initialised,
|
|
|
2177 |
// and could thus lead to a false positive in tmp break loop below
|
|
|
2178 |
currentPC = 0xFFFFFFFF;
|
|
|
2179 |
}
|
|
|
2180 |
else
|
|
|
2181 |
{
|
|
|
2182 |
LOG_MSG2("DRM_DebugChannel::DoResumeThread(), pc=0x%x", currentPC);
|
|
|
2183 |
}
|
|
|
2184 |
|
|
|
2185 |
// if there is a breakpoint at the current PC, we need to single step past it
|
|
|
2186 |
TBreakEntry* breakEntry = NULL;
|
|
|
2187 |
do
|
|
|
2188 |
{
|
|
|
2189 |
breakEntry = iBreakManager->GetNextBreak(breakEntry);
|
|
|
2190 |
if(breakEntry && !iBreakManager->IsTemporaryBreak(*breakEntry))
|
|
|
2191 |
{
|
|
|
2192 |
if (breakEntry->iAddress == currentPC)
|
|
|
2193 |
{
|
|
|
2194 |
LOG_MSG2("DRM_DebugChannel::DoResumeThread : > DoStepRange(pc+1)=0x%x, resume once out of range", currentPC+1 );
|
|
|
2195 |
return DoStepRange(aThread, currentPC, currentPC+1, ETrue, 1, ETrue);
|
|
|
2196 |
}
|
|
|
2197 |
}
|
|
|
2198 |
} while(breakEntry);
|
|
|
2199 |
|
|
|
2200 |
return TheDProcessTracker.ResumeThread(aThread);
|
|
|
2201 |
}
|
|
|
2202 |
|
|
|
2203 |
//
|
|
|
2204 |
// DRM_DebugChannel::DoStepRange
|
|
|
2205 |
//
|
|
|
2206 |
TInt DRM_DebugChannel::DoStepRange(DThread *aThread, const TUint32 aStartAddress, const TUint32 aStopAddress, TBool aStepInto, TBool aResumeOnceOutOfRange, const TUint32 aNumSteps, TBool aUserRequest)
|
|
|
2207 |
{
|
|
|
2208 |
LOG_MSG("DRM_DebugChannel::DoStepRange()");
|
|
|
2209 |
|
|
|
2210 |
if (!aThread)
|
|
|
2211 |
return KErrArgument;
|
|
|
2212 |
|
|
|
2213 |
|
|
|
2214 |
TUint32 startAddress = (aStartAddress & 0x1) ? aStartAddress + 1 : aStartAddress;
|
|
|
2215 |
TUint32 stopAddress = (aStopAddress & 0x1) ? aStopAddress + 1 : aStopAddress;;
|
|
|
2216 |
|
|
|
2217 |
// don't allow the user to step in the excluded ROM region. this could be called
|
|
|
2218 |
// internally however. for example, the the special breakpoints we set to handle
|
|
|
2219 |
// panics, exceptions, and library loaded events are in the user library, and we
|
|
|
2220 |
// will need to step past the breakpoint before continuing the thread.
|
|
|
2221 |
//if (aUserRequest && (startAddress >= iExcludedROMAddressStart) && (startAddress < iExcludedROMAddressEnd))
|
|
|
2222 |
//{
|
|
|
2223 |
// return KErrNotSupported;
|
|
|
2224 |
//}
|
|
|
2225 |
|
|
|
2226 |
// set the temp breakpoint, and disable the breakpoint at the current PC if necessary
|
|
|
2227 |
// if its not a user request, and we are just trying to resume from a breakpoint,
|
|
|
2228 |
// then we don't need to check for stubs. The last parameter aUserRequest tells
|
|
|
2229 |
// ModifyBreaksForStep to check for stubs or not. In some cases, the check for stubs
|
|
|
2230 |
// is true even if its not a user request.For example, this is true in cases where
|
|
|
2231 |
// we are doing a step range and the instruction in the range modified PC.
|
|
|
2232 |
// in this case, DoStepRange will be called from the exception handler where
|
|
|
2233 |
// we need to check for the stubs for the valid behavior. So truly, we don't need to check
|
|
|
2234 |
// for stubs only when resuming from a breakpoint.
|
|
|
2235 |
ReturnIfError(iStepper->ModifyBreaksForStep(aThread, startAddress, stopAddress, aResumeOnceOutOfRange, aUserRequest, aNumSteps));
|
|
|
2236 |
|
|
|
2237 |
LOG_MSG("DRM_DebugChannel::DoStepRange() - resuming thread\n");
|
|
|
2238 |
|
|
|
2239 |
return TheDProcessTracker.ResumeThread(aThread);
|
|
|
2240 |
}
|
|
|
2241 |
|
|
|
2242 |
/**
|
|
|
2243 |
Read memory from the specified addres into the aData descriptor. If there is a
|
|
|
2244 |
breakpoint set in the region of memory returned then the correct data value is
|
|
|
2245 |
inserted into the descriptor
|
|
|
2246 |
|
|
|
2247 |
@param aThread pointer to thread whose address space memory is to be read from
|
|
|
2248 |
@param aAddress address to start reading memory from
|
|
|
2249 |
@param aLength length of memory block to read
|
|
|
2250 |
@param aData descriptor to read memory into
|
|
|
2251 |
|
|
|
2252 |
@return KErrNone if memory read successfully,
|
|
|
2253 |
KErrNotSupported if reading from the rom section is not supported,
|
|
|
2254 |
KErrBadHandle if aThread is invalid,
|
|
|
2255 |
or one of the other system wide error codes
|
|
|
2256 |
*/
|
|
|
2257 |
TInt DRM_DebugChannel::DoReadMemory(const DThread *aThread, const TUint32 aAddress, const TUint32 aLength, TDes8 &aData) const
|
|
|
2258 |
{
|
|
|
2259 |
LOG_MSG("DRM_DebugChannel::DoReadMemory()");
|
|
|
2260 |
|
|
|
2261 |
// make sure the parameters are valid
|
|
|
2262 |
if (aLength > aData.MaxSize())
|
|
|
2263 |
return KErrArgument;
|
|
|
2264 |
|
|
|
2265 |
TInt err = KErrNone;
|
|
|
2266 |
|
|
|
2267 |
// trap exceptions in case the address is invalid
|
|
|
2268 |
XTRAPD(r, XT_DEFAULT, err = TryToReadMemory(aThread, (TAny *)aAddress, (TAny *)aData.Ptr(), aLength));
|
|
|
2269 |
|
|
|
2270 |
err = (KErrNone == r) ? err : r;
|
|
|
2271 |
|
|
|
2272 |
if (KErrNone == err)
|
|
|
2273 |
{
|
|
|
2274 |
aData.SetLength(aLength);
|
|
|
2275 |
|
|
|
2276 |
TPtr8 data((TUint8 *)aData.Ptr(), aLength, aLength);
|
|
|
2277 |
|
|
|
2278 |
// if we have any breakpoints in this range, put the actual instruction in the buffer
|
|
|
2279 |
TBreakEntry* breakEntry = NULL;
|
|
|
2280 |
do
|
|
|
2281 |
{
|
|
|
2282 |
breakEntry = iBreakManager->GetNextBreak(breakEntry);
|
|
|
2283 |
if(breakEntry && !iBreakManager->IsTemporaryBreak(*breakEntry))
|
|
|
2284 |
{
|
|
|
2285 |
if ((breakEntry->iAddress >= aAddress) && (breakEntry->iAddress < (aAddress + aLength)))
|
|
|
2286 |
{
|
|
|
2287 |
TInt instSize;
|
|
|
2288 |
|
|
|
2289 |
switch(breakEntry->iMode)
|
|
|
2290 |
{
|
|
|
2291 |
case EArmMode:
|
|
|
2292 |
instSize = 4;
|
|
|
2293 |
break;
|
|
|
2294 |
|
|
|
2295 |
case EThumbMode:
|
|
|
2296 |
instSize = 2;
|
|
|
2297 |
break;
|
|
|
2298 |
|
|
|
2299 |
case EThumb2EEMode:
|
|
|
2300 |
default:
|
|
|
2301 |
LOG_MSG("DRM_DebugChannel::DoReadMemory() cannot fixup breakpoints with unsupported architecture");
|
|
|
2302 |
return KErrNotSupported;
|
|
|
2303 |
}
|
|
|
2304 |
memcpy((TAny*)&data[breakEntry->iAddress - aAddress], (TAny *)breakEntry->iInstruction.Ptr(), instSize);
|
|
|
2305 |
}
|
|
|
2306 |
}
|
|
|
2307 |
} while(breakEntry);
|
|
|
2308 |
}
|
|
|
2309 |
|
|
|
2310 |
return err;
|
|
|
2311 |
}
|
|
|
2312 |
|
|
|
2313 |
/**
|
|
|
2314 |
Attempt to write memory to aThread's address space
|
|
|
2315 |
|
|
|
2316 |
@param aThread thread to whose address space memory is to be written
|
|
|
2317 |
@param aAddress memory location to write memory to
|
|
|
2318 |
@param aLength number of bytes of data to write
|
|
|
2319 |
@param aData descriptor containing memory to write
|
|
|
2320 |
|
|
|
2321 |
@return KErrNone if memory written successfully,
|
|
|
2322 |
KErrArgument if aLength is greater than than the length of the aData
|
|
|
2323 |
KErrBadHandle if aThread is invalid,
|
|
|
2324 |
or another of the system wide error codes
|
|
|
2325 |
*/
|
|
|
2326 |
TInt DRM_DebugChannel::DoWriteMemory(DThread *aThread, const TUint32 aAddress, const TUint32 aLength, TDes8 &aData)
|
|
|
2327 |
{
|
|
|
2328 |
LOG_MSG("DRM_DebugChannel::DoWriteMemory()");
|
|
|
2329 |
|
|
|
2330 |
// make sure the parameters are valid
|
|
|
2331 |
if (aLength > aData.Length())
|
|
|
2332 |
return KErrArgument;
|
|
|
2333 |
|
|
|
2334 |
TInt err = KErrNone;
|
|
|
2335 |
|
|
|
2336 |
// trap exceptions in case the address is invalid
|
|
|
2337 |
XTRAPD(r, XT_DEFAULT, err = TryToWriteMemory(aThread, (TAny *)aAddress, (TAny *)aData.Ptr(), aLength));
|
|
|
2338 |
|
|
|
2339 |
err = (KErrNone == r) ? err : r;
|
|
|
2340 |
|
|
|
2341 |
// reset any breakpoints we may have just overwritten
|
|
|
2342 |
if (KErrNone == err)
|
|
|
2343 |
{
|
|
|
2344 |
TPtr8 data((TUint8 *)aData.Ptr(), aLength, aLength);
|
|
|
2345 |
|
|
|
2346 |
TBreakEntry* breakEntry = NULL;
|
|
|
2347 |
do
|
|
|
2348 |
{
|
|
|
2349 |
breakEntry = iBreakManager->GetNextBreak(breakEntry);
|
|
|
2350 |
if(breakEntry && !iBreakManager->IsTemporaryBreak(*breakEntry))
|
|
|
2351 |
{
|
|
|
2352 |
if ((breakEntry->iAddress >= aAddress) && (breakEntry->iAddress < (aAddress + aLength)))
|
|
|
2353 |
{
|
|
|
2354 |
// default to arm mode
|
|
|
2355 |
TUint32 inst;
|
|
|
2356 |
TInt instSize;
|
|
|
2357 |
|
|
|
2358 |
switch (breakEntry->iMode)
|
|
|
2359 |
{
|
|
|
2360 |
case EArmMode:
|
|
|
2361 |
inst = KArmBreakPoint;
|
|
|
2362 |
instSize = 4;
|
|
|
2363 |
break;
|
|
|
2364 |
|
|
|
2365 |
case EThumbMode:
|
|
|
2366 |
inst = KThumbBreakPoint;
|
|
|
2367 |
instSize = 2;
|
|
|
2368 |
break;
|
|
|
2369 |
|
|
|
2370 |
case EThumb2EEMode:
|
|
|
2371 |
default:
|
|
|
2372 |
LOG_MSG("DRM_DebugChannel::DoWriteMemory() cannot fixup breakpoints of unsupported architecture type");
|
|
|
2373 |
|
|
|
2374 |
return KErrNotSupported;
|
|
|
2375 |
}
|
|
|
2376 |
|
|
|
2377 |
breakEntry->iInstruction.Copy(&data[breakEntry->iAddress - aAddress], instSize);
|
|
|
2378 |
memcpy((TAny*)breakEntry->iAddress, (TAny *)&inst, instSize);
|
|
|
2379 |
}
|
|
|
2380 |
}
|
|
|
2381 |
|
|
|
2382 |
} while(breakEntry);
|
|
|
2383 |
}
|
|
|
2384 |
return err;
|
|
|
2385 |
}
|
|
|
2386 |
|
|
|
2387 |
//
|
|
|
2388 |
// DRM_DebugChannel::DoReadRegisters
|
|
|
2389 |
//
|
|
|
2390 |
TInt DRM_DebugChannel::DoReadRegisters(DThread *aThread, const TInt16 aFirstRegister, const TInt16 aLastRegister, TDes8 &aValues)
|
|
|
2391 |
{
|
|
|
2392 |
LOG_EVENT_MSG("DRM_DebugChannel::DoReadRegisters()");
|
|
|
2393 |
|
|
|
2394 |
// make sure the parameters are valid
|
|
|
2395 |
if (!aThread || (aFirstRegister < 0) || (aLastRegister >= (TInt16)(sizeof(TArmRegSet)/sizeof(TArmReg))))
|
|
|
2396 |
return KErrArgument;
|
|
|
2397 |
|
|
|
2398 |
// make sure the descriptor is big enough to hold the requested data
|
|
|
2399 |
if ((TInt)((aLastRegister - aFirstRegister + 1) * sizeof(TArmReg)) > (aValues.MaxSize()))
|
|
|
2400 |
return KErrArgument;
|
|
|
2401 |
|
|
|
2402 |
TArmRegSet regSet;
|
|
|
2403 |
TUint32 unused;
|
|
|
2404 |
|
|
|
2405 |
NKern::ThreadGetUserContext(&aThread->iNThread, ®Set, unused);
|
|
|
2406 |
|
|
|
2407 |
LOG_MSG2( "DRM_DebugChannel::DoReadRegistersLegacy() : unused = 0x%X\n", unused );
|
|
|
2408 |
|
|
|
2409 |
TArmReg *reg = ®Set.iR0;
|
|
|
2410 |
|
|
|
2411 |
if (!reg)
|
|
|
2412 |
return KErrGeneral;
|
|
|
2413 |
|
|
|
2414 |
for (TInt16 i = aFirstRegister; i <= aLastRegister; i++)
|
|
|
2415 |
aValues.Append((TUint8 *)®[i], sizeof(TArmReg));
|
|
|
2416 |
|
|
|
2417 |
return KErrNone;
|
|
|
2418 |
}
|
|
|
2419 |
|
|
|
2420 |
/**
|
|
|
2421 |
@prototype
|
|
|
2422 |
|
|
|
2423 |
Experimental function for determining whether a thread is suspended.
|
|
|
2424 |
|
|
|
2425 |
@param aThread thread to check if suspended
|
|
|
2426 |
|
|
|
2427 |
@return ETrue if the thread is suspended, EFalse if it isn't or does not exist
|
|
|
2428 |
*/
|
|
|
2429 |
TBool DRM_DebugChannel::CheckSuspended(const DThread *aThread) const
|
|
|
2430 |
{
|
|
|
2431 |
if(!aThread)
|
|
|
2432 |
{
|
|
|
2433 |
return EFalse;
|
|
|
2434 |
}
|
|
|
2435 |
|
|
|
2436 |
if( (aThread->iNThread.iCsCount>0) && (aThread->iNThread.iCsFunction>0) )
|
|
|
2437 |
{
|
|
|
2438 |
return ETrue;
|
|
|
2439 |
}
|
|
|
2440 |
|
|
|
2441 |
if(aThread->iNThread.iSuspendCount > 0)
|
|
|
2442 |
{
|
|
|
2443 |
return ETrue;
|
|
|
2444 |
}
|
|
|
2445 |
return EFalse;
|
|
|
2446 |
}
|
|
|
2447 |
|
|
|
2448 |
/**
|
|
|
2449 |
Read registers and store register values in aRegisterValues and the flags
|
|
|
2450 |
indicating which registers could be read in aRegisterFlags
|
|
|
2451 |
|
|
|
2452 |
@param aThread thread to read registers from
|
|
|
2453 |
@param aRegisterIds array containing register IDs to read
|
|
|
2454 |
@param aRegisterValues array to store register values in
|
|
|
2455 |
@param aRegisterFlags array to store flags in
|
|
|
2456 |
|
|
|
2457 |
@return KErrNone if registers were read successfully. Note that this does not
|
|
|
2458 |
mean that all the registers could be read, the aRegisterFlags array
|
|
|
2459 |
should be checked as to whether each individual register could be read,
|
|
|
2460 |
KErrArgument if aThread is NULL, if an unknown register is specified in
|
|
|
2461 |
aRegisterValues or if aRegisterValues is too small
|
|
|
2462 |
KErrGeneral if there was a problem initialising the register set
|
|
|
2463 |
*/
|
|
|
2464 |
TInt DRM_DebugChannel::DoReadRegisters(DThread *aThread, const TDesC8 &aRegisterIds, TDes8 &aRegisterValues, TDes8& aRegisterFlags) const
|
|
|
2465 |
{
|
|
|
2466 |
LOG_MSG("DRM_DebugChannel::DoReadRegisters()");
|
|
|
2467 |
|
|
|
2468 |
// make sure the parameters are valid
|
|
|
2469 |
if (!aThread)
|
|
|
2470 |
return KErrArgument;
|
|
|
2471 |
|
|
|
2472 |
//Need to revisit this to determine whether there is a way to validate this
|
|
|
2473 |
#if 0
|
|
|
2474 |
if ( !CheckSuspended(aThread) )
|
|
|
2475 |
{
|
|
|
2476 |
LOG_MSG2("DRM_DebugChannel::DoReadRegisters() thread with id 0x%08x is not suspended", aThread->iId);
|
|
|
2477 |
return KErrInUse;
|
|
|
2478 |
}
|
|
|
2479 |
#endif
|
|
|
2480 |
|
|
|
2481 |
//set lengths of output descriptors to 0 prior to filling
|
|
|
2482 |
aRegisterValues.SetLength(0);
|
|
|
2483 |
aRegisterFlags.SetLength(0);
|
|
|
2484 |
|
|
|
2485 |
TArmRegSet regSet;
|
|
|
2486 |
TUint32 flags;
|
|
|
2487 |
|
|
|
2488 |
NKern::ThreadGetUserContext(&aThread->iNThread, ®Set, flags);
|
|
|
2489 |
|
|
|
2490 |
LOG_MSG2( "DRM_DebugChannel::DoReadRegisters() : flags = 0x%X\n", flags );
|
|
|
2491 |
|
|
|
2492 |
TArmReg *regPtr = ®Set.iR0;
|
|
|
2493 |
|
|
|
2494 |
if (!regPtr)
|
|
|
2495 |
return KErrGeneral;
|
|
|
2496 |
|
|
|
2497 |
TUint numberOfRegisters = aRegisterIds.Length() / sizeof(TRegisterInfo);
|
|
|
2498 |
|
|
|
2499 |
//iterate through registers setting the relevant aFlags value
|
|
|
2500 |
for(TUint i=0; i<numberOfRegisters; i++)
|
|
|
2501 |
{
|
|
|
2502 |
//get current register id
|
|
|
2503 |
TRegisterInfo reg;
|
|
|
2504 |
TInt err = GetTRegisterInfo(aRegisterIds, i, reg);
|
|
|
2505 |
//exit with the error value if there was an error
|
|
|
2506 |
if(err != KErrNone)
|
|
|
2507 |
return err;
|
|
|
2508 |
|
|
|
2509 |
//if unknown register then exit as can't know how many bytes this entry will
|
|
|
2510 |
//represent in aRegisterValues
|
|
|
2511 |
TTag registerTag;
|
|
|
2512 |
TDebugFunctionality::GetRegister(reg, registerTag);
|
|
|
2513 |
if(registerTag.iValue == EAccessUnknown)
|
|
|
2514 |
{
|
|
|
2515 |
return KErrArgument;
|
|
|
2516 |
}
|
|
|
2517 |
|
|
|
2518 |
//get the current register id as a kernel register
|
|
|
2519 |
TArmReg armReg;
|
|
|
2520 |
err = GetKernelRegisterId(reg, armReg);
|
|
|
2521 |
if((err == KErrNotSupported) || (registerTag.iValue == EAccessNone) || (registerTag.iValue == EAccessWriteOnly))
|
|
|
2522 |
{
|
|
|
2523 |
//reading this register is not supported
|
|
|
2524 |
aRegisterFlags.Append(ENotSupported);
|
|
|
2525 |
//just skip over this entry in the values buffer
|
|
|
2526 |
if(aRegisterValues.Length() + registerTag.iSize > aRegisterValues.MaxLength())
|
|
|
2527 |
{
|
|
|
2528 |
//writing this value would cause overflow so exit
|
|
|
2529 |
return KErrArgument;
|
|
|
2530 |
}
|
|
|
2531 |
aRegisterValues.SetLength(aRegisterValues.Length() + registerTag.iSize);
|
|
|
2532 |
}
|
|
|
2533 |
else
|
|
|
2534 |
{
|
|
|
2535 |
if(registerTag.iSize == sizeof(TArmReg))
|
|
|
2536 |
{
|
|
|
2537 |
if(GetFlagAtOffset(flags, armReg))
|
|
|
2538 |
{
|
|
|
2539 |
//set flag as valid
|
|
|
2540 |
aRegisterFlags.Append(EValid);
|
|
|
2541 |
}
|
|
|
2542 |
else
|
|
|
2543 |
{
|
|
|
2544 |
// Even though the flag is invalid, we can return the value of the register
|
|
|
2545 |
// and let the user decide what to do
|
|
|
2546 |
aRegisterFlags.Append(EInValid);
|
|
|
2547 |
}
|
|
|
2548 |
|
|
|
2549 |
if(aRegisterValues.Length() + sizeof(TArmReg) > aRegisterValues.MaxLength())
|
|
|
2550 |
{
|
|
|
2551 |
//writing this value would cause overflow so exit
|
|
|
2552 |
return KErrArgument;
|
|
|
2553 |
}
|
|
|
2554 |
//write value into register into regSet
|
|
|
2555 |
aRegisterValues.Append((TUint8 *)®Ptr[armReg], registerTag.iSize);
|
|
|
2556 |
}
|
|
|
2557 |
else
|
|
|
2558 |
{
|
|
|
2559 |
//currently all kernel supported registers are 4 bytes so
|
|
|
2560 |
//return EBadSize. Would need updating if/when other register
|
|
|
2561 |
//value sizes are supported
|
|
|
2562 |
aRegisterFlags.Append(EBadSize);
|
|
|
2563 |
aRegisterValues.SetLength(aRegisterValues.Length() + registerTag.iSize);
|
|
|
2564 |
}
|
|
|
2565 |
}
|
|
|
2566 |
}
|
|
|
2567 |
return KErrNone;
|
|
|
2568 |
}
|
|
|
2569 |
|
|
|
2570 |
//
|
|
|
2571 |
// DRM_DebugChannel::DoWriteRegisters
|
|
|
2572 |
//
|
|
|
2573 |
TInt DRM_DebugChannel::DoWriteRegisters(DThread *aThread, const TInt16 aFirstRegister, const TInt16 aLastRegister, TDesC8 &aValues)
|
|
|
2574 |
{
|
|
|
2575 |
LOG_MSG("DRM_DebugChannel::DoWriteRegisters()");
|
|
|
2576 |
|
|
|
2577 |
// make sure the parameters are valid
|
|
|
2578 |
if (!aThread || (aFirstRegister < 0) || (aLastRegister >= (TInt16)(sizeof(TArmRegSet)/sizeof(TArmReg))))
|
|
|
2579 |
return KErrArgument;
|
|
|
2580 |
|
|
|
2581 |
// make sure the descriptor is big enough to hold the data to write
|
|
|
2582 |
if ((TInt)((aLastRegister - aFirstRegister + 1) * sizeof(TArmReg)) > (aValues.Length()))
|
|
|
2583 |
return KErrArgument;
|
|
|
2584 |
|
|
|
2585 |
TArmRegSet regSet;
|
|
|
2586 |
TUint32 unused;
|
|
|
2587 |
|
|
|
2588 |
NKern::ThreadGetUserContext(&aThread->iNThread, ®Set, unused);
|
|
|
2589 |
|
|
|
2590 |
TArmReg *reg = ®Set.iR0;
|
|
|
2591 |
|
|
|
2592 |
for (TInt16 i = aFirstRegister; i <= aLastRegister; i++)
|
|
|
2593 |
reg[i] = *(TUint32 *)&aValues[(i-aFirstRegister)*sizeof(TArmReg)];
|
|
|
2594 |
|
|
|
2595 |
NKern::ThreadSetUserContext(&aThread->iNThread, ®Set);
|
|
|
2596 |
|
|
|
2597 |
return KErrNone;
|
|
|
2598 |
}
|
|
|
2599 |
|
|
|
2600 |
/**
|
|
|
2601 |
Write registers and store flags indicating which registers could be read in
|
|
|
2602 |
aRegisterFlags
|
|
|
2603 |
|
|
|
2604 |
@param aThread thread to write registers to
|
|
|
2605 |
@param aRegisterIds array containing register IDs to write
|
|
|
2606 |
@param aRegisterValues array containing register values to write
|
|
|
2607 |
@param aRegisterFlags array to store flags in
|
|
|
2608 |
|
|
|
2609 |
@return KErrNone if registers were written successfully. Note that this does not
|
|
|
2610 |
mean that all the registers could be written, the aRegisterFlags array
|
|
|
2611 |
should be checked as to whether each individual register could be read,
|
|
|
2612 |
KErrArgument if aThread is NULL, if the buffer passed in as
|
|
|
2613 |
aRegisterValue is too small, or if an unknown register is requested,
|
|
|
2614 |
KErrGeneral if there was a problem initialising the register set
|
|
|
2615 |
*/
|
|
|
2616 |
TInt DRM_DebugChannel::DoWriteRegisters(DThread *aThread, const TDesC8 &aRegisterIds, TDesC8 &aRegisterValues, TDes8 &aRegisterFlags) const
|
|
|
2617 |
{
|
|
|
2618 |
LOG_MSG("DRM_DebugChannel::DoWriteRegisters()");
|
|
|
2619 |
|
|
|
2620 |
// make sure the parameters are valid
|
|
|
2621 |
if (!aThread)
|
|
|
2622 |
return KErrArgument;
|
|
|
2623 |
|
|
|
2624 |
|
|
|
2625 |
//get register values from kernel
|
|
|
2626 |
TArmRegSet regSet;
|
|
|
2627 |
TUint32 flags;
|
|
|
2628 |
NKern::ThreadGetUserContext(&aThread->iNThread, ®Set, flags);
|
|
|
2629 |
|
|
|
2630 |
//set lengths of output descriptors to 0 prior to filling
|
|
|
2631 |
aRegisterFlags.SetLength(0);
|
|
|
2632 |
|
|
|
2633 |
//pointer to first kernel register
|
|
|
2634 |
TArmReg *regPtr = ®Set.iR0;
|
|
|
2635 |
|
|
|
2636 |
if (!regPtr)
|
|
|
2637 |
return KErrGeneral;
|
|
|
2638 |
|
|
|
2639 |
//calculate number of registers
|
|
|
2640 |
TUint numberOfRegisters = aRegisterIds.Length() / sizeof(TRegisterInfo);
|
|
|
2641 |
|
|
|
2642 |
//iterate through registers setting the relevant aRegisterFlags value and
|
|
|
2643 |
//setting the necessary value in regSet ready to write to kernel
|
|
|
2644 |
for(TUint i=0, offset = 0; i<numberOfRegisters; i++)
|
|
|
2645 |
{
|
|
|
2646 |
//get current register id
|
|
|
2647 |
TRegisterInfo reg;
|
|
|
2648 |
TInt err = GetTRegisterInfo(aRegisterIds, i, reg);
|
|
|
2649 |
//exit with the error value if there was an error
|
|
|
2650 |
if(err != KErrNone)
|
|
|
2651 |
{
|
|
|
2652 |
return err;
|
|
|
2653 |
}
|
|
|
2654 |
|
|
|
2655 |
//if unknown register then exit as can't know how many bytes this entry will
|
|
|
2656 |
//represent in aRegisterValues
|
|
|
2657 |
TTag registerTag;
|
|
|
2658 |
TDebugFunctionality::GetRegister(reg, registerTag);
|
|
|
2659 |
if(registerTag.iValue == EAccessUnknown)
|
|
|
2660 |
{
|
|
|
2661 |
return KErrArgument;
|
|
|
2662 |
}
|
|
|
2663 |
|
|
|
2664 |
//get the current register id as a kernel register
|
|
|
2665 |
TArmReg armReg;
|
|
|
2666 |
err = GetKernelRegisterId(reg, armReg);
|
|
|
2667 |
if((err == KErrNotSupported) || (registerTag.iValue == EAccessNone) || (registerTag.iValue == EAccessReadOnly))
|
|
|
2668 |
{
|
|
|
2669 |
//writing to this register is not supported
|
|
|
2670 |
aRegisterFlags.Append(ENotSupported);
|
|
|
2671 |
}
|
|
|
2672 |
else if(GetFlagAtOffset(flags, armReg))
|
|
|
2673 |
{
|
|
|
2674 |
if(registerTag.iSize == sizeof(TArmReg))
|
|
|
2675 |
{
|
|
|
2676 |
//set flag as valid
|
|
|
2677 |
aRegisterFlags.Append(EValid);
|
|
|
2678 |
if(offset + sizeof(TArmReg) > aRegisterValues.Length())
|
|
|
2679 |
{
|
|
|
2680 |
//getting this value would cause overflow so exit
|
|
|
2681 |
return KErrArgument;
|
|
|
2682 |
}
|
|
|
2683 |
//write value into register into regSet
|
|
|
2684 |
regPtr[armReg] = *(TUint32 *)&aRegisterValues[offset];
|
|
|
2685 |
}
|
|
|
2686 |
else
|
|
|
2687 |
{
|
|
|
2688 |
//currently all kernel supported registers are 4 bytes so
|
|
|
2689 |
//return EBadSize. Would need updating if/when other register
|
|
|
2690 |
//value sizes are supported
|
|
|
2691 |
aRegisterFlags.Append(EBadSize);
|
|
|
2692 |
}
|
|
|
2693 |
|
|
|
2694 |
}
|
|
|
2695 |
else
|
|
|
2696 |
{
|
|
|
2697 |
//set flag as invalid as register value couldn't be read
|
|
|
2698 |
aRegisterFlags.Append(EInValid);
|
|
|
2699 |
}
|
|
|
2700 |
offset+=registerTag.iSize;
|
|
|
2701 |
}
|
|
|
2702 |
|
|
|
2703 |
//write the input data into the registers
|
|
|
2704 |
NKern::ThreadSetUserContext(&aThread->iNThread, ®Set);
|
|
|
2705 |
|
|
|
2706 |
//return normally
|
|
|
2707 |
return KErrNone;
|
|
|
2708 |
}
|
|
|
2709 |
|
|
|
2710 |
//
|
|
|
2711 |
// DRM_DebugChannel::DoSecurityCheck
|
|
|
2712 |
//
|
|
|
2713 |
TBool DRM_DebugChannel::DoSecurityCheck()
|
|
|
2714 |
{
|
|
|
2715 |
LOG_MSG("DRM_DebugChannel::DoSecurityCheck");
|
|
|
2716 |
DProcess* clientProcess = iClientThread->iOwningProcess;
|
|
|
2717 |
if (clientProcess)
|
|
|
2718 |
{
|
|
|
2719 |
SSecurityInfo secureInfo = clientProcess->iS;
|
|
|
2720 |
|
|
|
2721 |
LOG_MSG2("DoSecurityCheck - client secure id is 0x%08x",secureInfo.iSecureId);
|
|
|
2722 |
|
|
|
2723 |
// Ensure we really are communicating with the Debug Security Server
|
|
|
2724 |
if (secureInfo.iSecureId == KUidDebugSecurityServer.iUid )
|
|
|
2725 |
{
|
|
|
2726 |
return ETrue;
|
|
|
2727 |
}
|
|
|
2728 |
}
|
|
|
2729 |
return EFalse;
|
|
|
2730 |
}
|
|
|
2731 |
|
|
|
2732 |
/**
|
|
|
2733 |
Attempt to read memory from aThread's address space
|
|
|
2734 |
|
|
|
2735 |
@param aThread thread from whose address space memory is to be read
|
|
|
2736 |
@param aSrc pointer to memory location to read memory from
|
|
|
2737 |
@param aDest pointer to memory location to write memory to
|
|
|
2738 |
@param aLength number of bytes of data to read
|
|
|
2739 |
|
|
|
2740 |
@return KErrNone if memory read successfully,
|
|
|
2741 |
or another of the system wide error codes
|
|
|
2742 |
*/
|
|
|
2743 |
TInt DRM_DebugChannel::TryToReadMemory(const DThread *aThread, const TAny *aSrc, TAny *aDest, const TUint32 aLength) const
|
|
|
2744 |
{
|
|
|
2745 |
LOG_MSG("DRM_DebugChannel::TryToReadMemory()");
|
|
|
2746 |
|
|
|
2747 |
// make sure the parameters are valid
|
|
|
2748 |
if (!aThread)
|
|
|
2749 |
return KErrArgument;
|
|
|
2750 |
|
|
|
2751 |
//Need to revisit this to determine whether there is a way to validate this
|
|
|
2752 |
#if 0
|
|
|
2753 |
//check that the thread is suspended before reading the memory
|
|
|
2754 |
if ( !CheckSuspended(aThread) )
|
|
|
2755 |
{
|
|
|
2756 |
LOG_MSG2("DRM_DebugChannel::TryToReadMemory() thread with id 0x%08x is not suspended", aThread->iId);
|
|
|
2757 |
return KErrInUse;
|
|
|
2758 |
}
|
|
|
2759 |
#endif
|
|
|
2760 |
|
|
|
2761 |
LOG_MSG2("Using Kern::ThreadRawRead to read memory at address %x", aSrc);
|
|
|
2762 |
return Kern::ThreadRawRead((DThread *)aThread, aSrc, aDest, aLength);
|
|
|
2763 |
}
|
|
|
2764 |
|
|
|
2765 |
/**
|
|
|
2766 |
Attempt to write memory to aThread's address space
|
|
|
2767 |
|
|
|
2768 |
@param aThread thread to whose address space memory is to be written
|
|
|
2769 |
@param aDest pointer to memory location to write memory to
|
|
|
2770 |
@param aSrc pointer to memory location to read memory from
|
|
|
2771 |
@param aLength number of bytes of data to write
|
|
|
2772 |
|
|
|
2773 |
@return KErrNone if memory written successfully, or another of the system wide
|
|
|
2774 |
error codes
|
|
|
2775 |
*/
|
|
|
2776 |
TInt DRM_DebugChannel::TryToWriteMemory(const DThread *aThread, TAny *aDest, const TAny *aSrc, const TUint32 aLength)
|
|
|
2777 |
{
|
|
|
2778 |
LOG_MSG("DRM_DebugChannel::TryToWriteMemory()");
|
|
|
2779 |
|
|
|
2780 |
|
|
|
2781 |
LOG_MSG2("Using Kern::ThreadRawWrite to write memory at address %x", (TUint32)aDest);
|
|
|
2782 |
return Kern::ThreadRawWrite((DThread *)aThread, aDest, aSrc, aLength, iClientThread);
|
|
|
2783 |
}
|
|
|
2784 |
|
|
|
2785 |
/**
|
|
|
2786 |
@deprecated use DRM_DebugChannel::ReadKernelRegisterValue(DThread *aThread, const TArmReg aKernelRegisterId, T4ByteRegisterValue &aValue) instead
|
|
|
2787 |
*/
|
|
|
2788 |
TInt32 DRM_DebugChannel::ReadRegister(DThread *aThread, TInt aNum)
|
|
|
2789 |
{
|
|
|
2790 |
LOG_MSG("DRM_DebugChannel::ReadRegister()");
|
|
|
2791 |
|
|
|
2792 |
if (!aThread || (aNum < 0) || (aNum >= (TInt16)(sizeof(TArmRegSet)/sizeof(TArmReg))))
|
|
|
2793 |
{
|
|
|
2794 |
LOG_MSG2("Invalid register number (%d) passed to ReadRegister", aNum);
|
|
|
2795 |
return 0;
|
|
|
2796 |
}
|
|
|
2797 |
|
|
|
2798 |
TArmRegSet regSet;
|
|
|
2799 |
TUint32 unused;
|
|
|
2800 |
|
|
|
2801 |
NKern::ThreadGetUserContext(&aThread->iNThread, ®Set, unused);
|
|
|
2802 |
|
|
|
2803 |
TArmReg *reg = ®Set.iR0;
|
|
|
2804 |
|
|
|
2805 |
return ((TUint32 *)reg)[aNum];
|
|
|
2806 |
}
|
|
|
2807 |
|
|
|
2808 |
/**
|
|
|
2809 |
Given a TArmReg register ID, read the value of the register. The register value
|
|
|
2810 |
will be stored in aValue if the register could be read.
|
|
|
2811 |
|
|
|
2812 |
@param aThread thread to read register from
|
|
|
2813 |
@param aKernelRegisterId ID of register to read from
|
|
|
2814 |
@param aValue value read from register
|
|
|
2815 |
|
|
|
2816 |
@return KErrNone if value was successfully stored in aValue,
|
|
|
2817 |
KErrNotSupported if aKernelRegister is not supported by the debug
|
|
|
2818 |
security server,
|
|
|
2819 |
or a return value from DRM_DebugChannel::ReadDebugRegisterValue()
|
|
|
2820 |
*/
|
|
|
2821 |
TInt32 DRM_DebugChannel::ReadKernelRegisterValue(DThread *aThread, const TArmReg aKernelRegisterId, T4ByteRegisterValue &aValue) const
|
|
|
2822 |
{
|
|
|
2823 |
//get register ID as a TRegisterInfo ID
|
|
|
2824 |
TRegisterInfo regId;
|
|
|
2825 |
TInt err = GetDebugRegisterId(aKernelRegisterId, regId);
|
|
|
2826 |
if(err != KErrNone)
|
|
|
2827 |
return err;
|
|
|
2828 |
|
|
|
2829 |
//get the value for the register
|
|
|
2830 |
err = ReadDebugRegisterValue(aThread, regId, aValue);
|
|
|
2831 |
return err;
|
|
|
2832 |
}
|
|
|
2833 |
|
|
|
2834 |
/**
|
|
|
2835 |
Given a TRegisterInfo register ID, read the value of this register. The
|
|
|
2836 |
register value will be stored in aValue if the register could be read.
|
|
|
2837 |
|
|
|
2838 |
@param aThread thread to read register from
|
|
|
2839 |
@param aDebugRegisterId ID of register to read from
|
|
|
2840 |
@param aValue value read from register
|
|
|
2841 |
|
|
|
2842 |
@return KErrNone if value was successfully stored in aValue,
|
|
|
2843 |
TRegisterFlag::EInValid if value could not be read from the register,
|
|
|
2844 |
TRegisterFlag::ENotSupported if the register is not supported,
|
|
|
2845 |
KErrNoMemory if temporary memory could not be allocated,
|
|
|
2846 |
or a return value from DRM_DebugChannel::DoReadRegisters
|
|
|
2847 |
*/
|
|
|
2848 |
TInt32 DRM_DebugChannel::ReadDebugRegisterValue(DThread *aThread, const TRegisterInfo aDebugRegisterId, T4ByteRegisterValue &aValue) const
|
|
|
2849 |
{
|
|
|
2850 |
//allocate temporary buffers to store data
|
|
|
2851 |
NKern::ThreadEnterCS();
|
|
|
2852 |
TUint8* id = (TUint8*)Kern::Alloc(sizeof(TRegisterInfo));
|
|
|
2853 |
NKern::ThreadLeaveCS();
|
|
|
2854 |
if(id == NULL)
|
|
|
2855 |
{
|
|
|
2856 |
return KErrNoMemory;
|
|
|
2857 |
}
|
|
|
2858 |
|
|
|
2859 |
TPtr8 idPtr(id, sizeof(TRegisterInfo));
|
|
|
2860 |
|
|
|
2861 |
NKern::ThreadEnterCS();
|
|
|
2862 |
TUint8* value = (TUint8*)Kern::Alloc(sizeof(T4ByteRegisterValue));
|
|
|
2863 |
NKern::ThreadLeaveCS();
|
|
|
2864 |
if(value == NULL)
|
|
|
2865 |
{
|
|
|
2866 |
return KErrNoMemory;
|
|
|
2867 |
}
|
|
|
2868 |
TPtr8 valuePtr(value, sizeof(T4ByteRegisterValue));
|
|
|
2869 |
|
|
|
2870 |
NKern::ThreadEnterCS();
|
|
|
2871 |
TUint8* flag = (TUint8*)Kern::Alloc(sizeof(TUint8));
|
|
|
2872 |
NKern::ThreadLeaveCS();
|
|
|
2873 |
if(flag == NULL)
|
|
|
2874 |
{
|
|
|
2875 |
return KErrNoMemory;
|
|
|
2876 |
}
|
|
|
2877 |
TPtr8 flagPtr(flag, sizeof(TUint8));
|
|
|
2878 |
|
|
|
2879 |
//store register id in buffer
|
|
|
2880 |
idPtr.Append((TUint8*)&aDebugRegisterId, sizeof(TRegisterInfo));
|
|
|
2881 |
|
|
|
2882 |
//read registers
|
|
|
2883 |
TInt err = DoReadRegisters(aThread, idPtr, valuePtr, flagPtr);
|
|
|
2884 |
if(err == KErrNone)
|
|
|
2885 |
{
|
|
|
2886 |
if(*flag == EValid)
|
|
|
2887 |
{
|
|
|
2888 |
//register could be read so store value
|
|
|
2889 |
aValue = *(T4ByteRegisterValue*)value;
|
|
|
2890 |
}
|
|
|
2891 |
else
|
|
|
2892 |
{
|
|
|
2893 |
//register couldn't be read for some reason
|
|
|
2894 |
err = *flag;
|
|
|
2895 |
}
|
|
|
2896 |
}
|
|
|
2897 |
|
|
|
2898 |
//free memory
|
|
|
2899 |
NKern::ThreadEnterCS();
|
|
|
2900 |
Kern::Free(id);
|
|
|
2901 |
Kern::Free(value);
|
|
|
2902 |
Kern::Free(flag);
|
|
|
2903 |
NKern::ThreadLeaveCS();
|
|
|
2904 |
|
|
|
2905 |
return err;
|
|
|
2906 |
}
|
|
|
2907 |
|
|
|
2908 |
//
|
|
|
2909 |
// DRM_DebugChannel::NotifyAgentsFromEventPid
|
|
|
2910 |
//
|
|
|
2911 |
TBool DRM_DebugChannel::NotifyAgentsFromEventPid(const TDriverEventInfo& aEventInfo)
|
|
|
2912 |
{
|
|
|
2913 |
|
|
|
2914 |
// Look for the relevant DTargetProcess
|
|
|
2915 |
// We can find out the relevant process id from aEventInfo
|
|
|
2916 |
TUint32 pid = aEventInfo.iProcessId;
|
|
|
2917 |
|
|
|
2918 |
#ifdef _DEBUG
|
|
|
2919 |
if (aEventInfo.iEventType != EEventsUserTrace)
|
|
|
2920 |
{
|
|
|
2921 |
LOG_MSG3(" NotifyAgentsFromEventPid - pid = 0x%x, evType=%d", pid, aEventInfo.iEventType);
|
|
|
2922 |
}
|
|
|
2923 |
#endif
|
|
|
2924 |
|
|
|
2925 |
//opening handle to process
|
|
|
2926 |
DProcess* targetProcess = DebugUtils::OpenProcessHandle(pid);
|
|
|
2927 |
|
|
|
2928 |
if(!targetProcess)
|
|
|
2929 |
{
|
|
|
2930 |
LOG_EVENT_MSG("process does not exist!");
|
|
|
2931 |
return EFalse;
|
|
|
2932 |
}
|
|
|
2933 |
|
|
|
2934 |
// Are we debugging this process - decide based on iFileName
|
|
|
2935 |
DCodeSeg* p = targetProcess->iCodeSeg;
|
|
|
2936 |
DTargetProcess* foundProcess;
|
|
|
2937 |
if (p)
|
|
|
2938 |
{
|
|
|
2939 |
foundProcess = TheDProcessTracker.FindProcess(*(p->iFileName));
|
|
|
2940 |
}
|
|
|
2941 |
else
|
|
|
2942 |
{
|
|
|
2943 |
// special case: may not have a code seg in some cases. in which case we tell everyone!
|
|
|
2944 |
if (targetProcess->iName)
|
|
|
2945 |
{
|
|
|
2946 |
// copy the name of the process
|
|
|
2947 |
foundProcess = TheDProcessTracker.FindProcess(*(targetProcess->iName));
|
|
|
2948 |
}
|
|
|
2949 |
else
|
|
|
2950 |
{
|
|
|
2951 |
foundProcess = NULL;
|
|
|
2952 |
}
|
|
|
2953 |
}
|
|
|
2954 |
|
|
|
2955 |
//close the handle
|
|
|
2956 |
targetProcess->Close(NULL);
|
|
|
2957 |
|
|
|
2958 |
if (foundProcess)
|
|
|
2959 |
{
|
|
|
2960 |
foundProcess->NotifyEvent(aEventInfo);
|
|
|
2961 |
return ETrue;
|
|
|
2962 |
}
|
|
|
2963 |
else
|
|
|
2964 |
{
|
|
|
2965 |
// Check if there's an attach-to-all handler
|
|
|
2966 |
DDebugAgent* agent = TheDProcessTracker.GetCurrentAgentAttachedToAll();
|
|
|
2967 |
if (agent)
|
|
|
2968 |
{
|
|
|
2969 |
LOG_EVENT_MSG2(" NotifyAgentsFromEventPid - found attach all agent 0x%lx", agent->Id());
|
|
|
2970 |
agent->NotifyEvent(aEventInfo);
|
|
|
2971 |
return ETrue;
|
|
|
2972 |
}
|
|
|
2973 |
}
|
|
|
2974 |
|
|
|
2975 |
// we are not debugging this process
|
|
|
2976 |
return EFalse;
|
|
|
2977 |
}
|
|
|
2978 |
|
|
|
2979 |
DECLARE_STANDARD_LDD()
|
|
|
2980 |
{
|
|
|
2981 |
return new DRM_DebugDriverFactory;
|
|
|
2982 |
}
|
|
|
2983 |
|
|
|
2984 |
/**
|
|
|
2985 |
Helper function
|
|
|
2986 |
|
|
|
2987 |
Allocates memory in current thread with a max length the same as aSrcDes. If
|
|
|
2988 |
aReadFromClient is true (as it is by default) then the data from aSrdDes is
|
|
|
2989 |
copied into the allocated aDestDes buffer.
|
|
|
2990 |
|
|
|
2991 |
Use of this function should be followed at a later time by a call such as
|
|
|
2992 |
Kern::Free(aDestDes.Ptr())
|
|
|
2993 |
|
|
|
2994 |
@param aThread pointer to thread to read data from
|
|
|
2995 |
@param aSrcDes descriptor in aThread to read data from
|
|
|
2996 |
@param aDestDes location to read data to. Memory is allocated at this location,
|
|
|
2997 |
if memory is already allocated at this location then the function will
|
|
|
2998 |
return KErrArgument
|
|
|
2999 |
@param aReadFromClient if false then data is not actually read from the
|
|
|
3000 |
client, the memory is simply allocated
|
|
|
3001 |
@param aOffest offset into aSrcDes to start reading from. Default is 0.
|
|
|
3002 |
|
|
|
3003 |
@return KErrNone if there were no problems,
|
|
|
3004 |
KErrArgument if aDestDes.Ptr() != NULL or aSrcDes has max length 0,
|
|
|
3005 |
KErrNoMemory if could not allocate memory,
|
|
|
3006 |
or one of the other system wide error codes
|
|
|
3007 |
*/
|
|
|
3008 |
TInt DRM_DebugChannel::AllocAndReadDes(DThread *aThread, const TDesC8& aSrcDes, TPtr8& aDestDes, const TBool aReadFromClient, const TUint aOffset) const
|
|
|
3009 |
{
|
|
|
3010 |
|
|
|
3011 |
//check thread is not null
|
|
|
3012 |
if(!aThread)
|
|
|
3013 |
{
|
|
|
3014 |
return KErrArgument;
|
|
|
3015 |
}
|
|
|
3016 |
|
|
|
3017 |
//check aDestDes is empty
|
|
|
3018 |
if(aDestDes.Ptr() != NULL)
|
|
|
3019 |
{
|
|
|
3020 |
return KErrArgument;
|
|
|
3021 |
}
|
|
|
3022 |
|
|
|
3023 |
//get the source descriptor's max length and exit if 0
|
|
|
3024 |
TUint srcMaxLength = Kern::ThreadGetDesMaxLength(aThread, &aSrcDes);
|
|
|
3025 |
if(srcMaxLength == 0)
|
|
|
3026 |
{
|
|
|
3027 |
return KErrNone;
|
|
|
3028 |
}
|
|
|
3029 |
|
|
|
3030 |
//allocate memory and return if none available
|
|
|
3031 |
NKern::ThreadEnterCS();
|
|
|
3032 |
TUint8 *destPtr = (TUint8*)Kern::Alloc(srcMaxLength);
|
|
|
3033 |
NKern::ThreadLeaveCS();
|
|
|
3034 |
if (!destPtr)
|
|
|
3035 |
{
|
|
|
3036 |
return KErrNoMemory;
|
|
|
3037 |
}
|
|
|
3038 |
|
|
|
3039 |
//point the TPtr8 at the target memory
|
|
|
3040 |
aDestDes.Set(destPtr, srcMaxLength, srcMaxLength);
|
|
|
3041 |
|
|
|
3042 |
if(aReadFromClient)
|
|
|
3043 |
{
|
|
|
3044 |
//read data from the client thread and return status code
|
|
|
3045 |
return Kern::ThreadDesRead(aThread, &aSrcDes, aDestDes, aOffset);
|
|
|
3046 |
}
|
|
|
3047 |
else
|
|
|
3048 |
{
|
|
|
3049 |
return KErrNone;
|
|
|
3050 |
}
|
|
|
3051 |
}
|
|
|
3052 |
|
|
|
3053 |
/**
|
|
|
3054 |
Helper function to extract a TRegisterInfo value from a descriptor containing
|
|
|
3055 |
binary data.
|
|
|
3056 |
|
|
|
3057 |
@param aRegisterIds descriptor containing register IDs
|
|
|
3058 |
@param aOffset offset in bytes into the descriptor to start reading data from.
|
|
|
3059 |
If this value is not a multiple of sizeof(TRegisterInfo) then a
|
|
|
3060 |
KErrArgument error is returned.
|
|
|
3061 |
@param aValue will contain the returned value
|
|
|
3062 |
|
|
|
3063 |
@return KErrNone if aValue was set correctly, KErrArgument if bad arguments
|
|
|
3064 |
were passed in
|
|
|
3065 |
*/
|
|
|
3066 |
TInt DRM_DebugChannel::GetTRegisterInfo(const TDesC8 &aRegisterIds, const TUint aIndex, TRegisterInfo &aValue) const
|
|
|
3067 |
{
|
|
|
3068 |
TUint length = aRegisterIds.Length();
|
|
|
3069 |
|
|
|
3070 |
TUint size = sizeof(TRegisterInfo);
|
|
|
3071 |
|
|
|
3072 |
//check that not trying to read past end of descriptor
|
|
|
3073 |
if((aIndex + 1) * size > length)
|
|
|
3074 |
return KErrArgument;
|
|
|
3075 |
|
|
|
3076 |
//get pointer to descriptor's data
|
|
|
3077 |
const TUint8 *dataPtr = aRegisterIds.Ptr();
|
|
|
3078 |
const TRegisterInfo *registerId = reinterpret_cast<const TRegisterInfo*>(dataPtr + (aIndex * size));
|
|
|
3079 |
|
|
|
3080 |
aValue = *registerId;
|
|
|
3081 |
|
|
|
3082 |
return KErrNone;
|
|
|
3083 |
}
|
|
|
3084 |
|
|
|
3085 |
/**
|
|
|
3086 |
Helper function to get the kernel register ID of the TRegisterInfo defined register.
|
|
|
3087 |
|
|
|
3088 |
@param aDebugRegister the debug register ID to return the kernel ID for
|
|
|
3089 |
@param aKernelRegister corresponding value of register aDebugRegister
|
|
|
3090 |
|
|
|
3091 |
@return KErrNone if translation occurred without problems
|
|
|
3092 |
KErrNotSupported if aDebugRegister is not supported by the kernel
|
|
|
3093 |
*/
|
|
|
3094 |
TInt DRM_DebugChannel::GetKernelRegisterId(const TRegisterInfo aDebugRegister, TArmReg& aKernelRegister) const
|
|
|
3095 |
{
|
|
|
3096 |
if(Register::IsCoreReg(aDebugRegister))
|
|
|
3097 |
{
|
|
|
3098 |
TUint id = Register::GetCoreRegId(aDebugRegister);
|
|
|
3099 |
//first 17 registers match the first 17 kernel registers
|
|
|
3100 |
if(id < 17)
|
|
|
3101 |
{
|
|
|
3102 |
aKernelRegister = id;
|
|
|
3103 |
}
|
|
|
3104 |
else
|
|
|
3105 |
{
|
|
|
3106 |
return KErrNotSupported;
|
|
|
3107 |
}
|
|
|
3108 |
}
|
|
|
3109 |
else if(Register::IsCoproReg(aDebugRegister))
|
|
|
3110 |
{
|
|
|
3111 |
TUint32 crn = Register::GetCRn(aDebugRegister);
|
|
|
3112 |
TUint32 crm = Register::GetCRm(aDebugRegister);
|
|
|
3113 |
TUint32 opcode1 = Register::GetOpcode1(aDebugRegister);
|
|
|
3114 |
TUint32 opcode2 = Register::GetOpcode2(aDebugRegister);
|
|
|
3115 |
TUint32 coproNum = Register::GetCoproNum(aDebugRegister);
|
|
|
3116 |
|
|
|
3117 |
//each coprocessor register has potentially different characteristics
|
|
|
3118 |
//so need to identify each individually
|
|
|
3119 |
|
|
|
3120 |
//this is the DACR, the ARM ARM specifies that the CRn and the
|
|
|
3121 |
//Opcodes are not relevant, section B3-24, point 3.7.3
|
|
|
3122 |
if((coproNum == 15) && (crm == 3))
|
|
|
3123 |
{
|
|
|
3124 |
aKernelRegister = EArmDacr;
|
|
|
3125 |
}
|
|
|
3126 |
else
|
|
|
3127 |
{
|
|
|
3128 |
return KErrNotSupported;
|
|
|
3129 |
}
|
|
|
3130 |
}
|
|
|
3131 |
else // might be supported at a later date
|
|
|
3132 |
{
|
|
|
3133 |
return KErrNotSupported;
|
|
|
3134 |
}
|
|
|
3135 |
|
|
|
3136 |
return KErrNone;
|
|
|
3137 |
}
|
|
|
3138 |
|
|
|
3139 |
/**
|
|
|
3140 |
Helper function to get the debug register ID of the kernel defined register.
|
|
|
3141 |
|
|
|
3142 |
@param aKernelRegister the kernel register ID to return the debug ID for
|
|
|
3143 |
@param aDebugRegister corresponding value of register aKernelRegister
|
|
|
3144 |
|
|
|
3145 |
@return KErrNone if translation occured without problems
|
|
|
3146 |
KErrNotSupported if aKernelRegister is not supported by the debug
|
|
|
3147 |
security server
|
|
|
3148 |
*/
|
|
|
3149 |
TInt DRM_DebugChannel::GetDebugRegisterId(const TArmReg aKernelRegister, TRegisterInfo &aDebugRegister) const
|
|
|
3150 |
{
|
|
|
3151 |
|
|
|
3152 |
// registers 0 - 15 and the CPSR share the same values as with the debug enums
|
|
|
3153 |
if(aKernelRegister < 17)
|
|
|
3154 |
{
|
|
|
3155 |
TUint32 id = aKernelRegister;
|
|
|
3156 |
aDebugRegister = id << 8;
|
|
|
3157 |
}
|
|
|
3158 |
//the DACR value is special and corresponds to EDF_Register_DACR
|
|
|
3159 |
else if(aKernelRegister == EArmDacr)
|
|
|
3160 |
{
|
|
|
3161 |
aDebugRegister = 0x00300f01;
|
|
|
3162 |
}
|
|
|
3163 |
// must be an unsupported register, return an error as such
|
|
|
3164 |
else
|
|
|
3165 |
{
|
|
|
3166 |
return KErrNotSupported;
|
|
|
3167 |
}
|
|
|
3168 |
|
|
|
3169 |
//found a supported register so return KErrNone
|
|
|
3170 |
return KErrNone;
|
|
|
3171 |
}
|
|
|
3172 |
|
|
|
3173 |
/**
|
|
|
3174 |
Helper function to find out whether the aIndex flag is set. This is equivalent
|
|
|
3175 |
to the aIndex bit of aFlags being non-zero.
|
|
|
3176 |
|
|
|
3177 |
@param aFlags set of flags
|
|
|
3178 |
@param aIndex offset into aFlags to get flag from
|
|
|
3179 |
|
|
|
3180 |
@return ETrue if bit is set, EFalse if not
|
|
|
3181 |
*/
|
|
|
3182 |
TBool DRM_DebugChannel::GetFlagAtOffset(const TUint32 aFlags, const TArmReg aIndex) const
|
|
|
3183 |
{
|
|
|
3184 |
return aFlags & (1<<aIndex);
|
|
|
3185 |
}
|
|
|
3186 |
|
|
|
3187 |
/* Register the attachment of a debug agent to a process to be debugged
|
|
|
3188 |
*
|
|
|
3189 |
* @param a1 - TDes8 target process name
|
|
|
3190 |
* @param a2 - &TUint64 - Debug Agent Id
|
|
|
3191 |
*
|
|
|
3192 |
* @return - KErrNone if successful. KErrArgument if the filepath is not a valid size.
|
|
|
3193 |
* KErrOutOfMemory if there is insufficient memory. Or one of the other system wide error codes
|
|
|
3194 |
* if appropriate.
|
|
|
3195 |
*/
|
|
|
3196 |
TInt DRM_DebugChannel::AttachProcess(TAny* a1, TAny* a2)
|
|
|
3197 |
{
|
|
|
3198 |
LOG_MSG("DRM_DebugChannel::AttachProcess()");
|
|
|
3199 |
|
|
|
3200 |
// Validate the supplied TDes8 target process name in a1
|
|
|
3201 |
TInt length = Kern::ThreadGetDesLength(iClientThread, a1);
|
|
|
3202 |
if (length < 0) return length;
|
|
|
3203 |
|
|
|
3204 |
// Check the processname is a valid size for a filepath
|
|
|
3205 |
if (length < 1 || length >= KMaxPath)
|
|
|
3206 |
{
|
|
|
3207 |
return KErrArgument;
|
|
|
3208 |
}
|
|
|
3209 |
|
|
|
3210 |
// Allocate space to store the target process name in a kernel-side TPtr8
|
|
|
3211 |
NKern::ThreadEnterCS();
|
|
|
3212 |
TUint8* buffer = (TUint8*)Kern::AllocZ(length);
|
|
|
3213 |
NKern::ThreadLeaveCS();
|
|
|
3214 |
if (buffer==NULL)
|
|
|
3215 |
{
|
|
|
3216 |
// Out of memory
|
|
|
3217 |
return KErrNoMemory;
|
|
|
3218 |
}
|
|
|
3219 |
|
|
|
3220 |
// A temporary descriptor to store the target process name
|
|
|
3221 |
TPtr8 targetProcessName(buffer,length,length);
|
|
|
3222 |
|
|
|
3223 |
// Read the user-side data into targetProcessName
|
|
|
3224 |
TInt err = Kern::ThreadDesRead(iClientThread,a1,targetProcessName,0,KChunkShiftBy0);
|
|
|
3225 |
if (err != KErrNone)
|
|
|
3226 |
{
|
|
|
3227 |
// Could not read the user-side descriptor containing the target process name
|
|
|
3228 |
NKern::ThreadEnterCS();
|
|
|
3229 |
Kern::Free(buffer);
|
|
|
3230 |
NKern::ThreadLeaveCS();
|
|
|
3231 |
|
|
|
3232 |
return err;
|
|
|
3233 |
}
|
|
|
3234 |
|
|
|
3235 |
// Obtain the Debug Agent Id
|
|
|
3236 |
TUint64 debugAgentId = 0;
|
|
|
3237 |
|
|
|
3238 |
err = Kern::ThreadRawRead(iClientThread,a2,&debugAgentId,sizeof(debugAgentId));
|
|
|
3239 |
if (err != KErrNone)
|
|
|
3240 |
{
|
|
|
3241 |
// Something bad happened so free the memory and return
|
|
|
3242 |
NKern::ThreadEnterCS();
|
|
|
3243 |
Kern::Free(buffer);
|
|
|
3244 |
NKern::ThreadLeaveCS();
|
|
|
3245 |
return err;
|
|
|
3246 |
}
|
|
|
3247 |
|
|
|
3248 |
// Add the target process to our list of tracked processes
|
|
|
3249 |
err = TheDProcessTracker.AttachProcess(targetProcessName, debugAgentId);
|
|
|
3250 |
|
|
|
3251 |
// Free the kernel-side memory containing targetProcessName data
|
|
|
3252 |
NKern::ThreadEnterCS();
|
|
|
3253 |
Kern::Free(buffer);
|
|
|
3254 |
NKern::ThreadLeaveCS();
|
|
|
3255 |
|
|
|
3256 |
return err;
|
|
|
3257 |
}
|
|
|
3258 |
|
|
|
3259 |
/* Register the detachment of a debug agent to a process to be debugged.
|
|
|
3260 |
*
|
|
|
3261 |
* @param - a1 TDes8 target process name in a1
|
|
|
3262 |
* @param a2 - &TUint64 - Debug Agent Id
|
|
|
3263 |
*
|
|
|
3264 |
* @return - KErrNone if successful. KErrArgument if the filepath is not a valid size.
|
|
|
3265 |
* KErrOutOfMemory if there is insufficient memory. Or one of the other system wide error codes
|
|
|
3266 |
* if appropriate.
|
|
|
3267 |
*/
|
|
|
3268 |
TInt DRM_DebugChannel::DetachProcess(TAny* a1, TAny* a2)
|
|
|
3269 |
{
|
|
|
3270 |
TInt length = Kern::ThreadGetDesLength(iClientThread, a1);
|
|
|
3271 |
if (length < 0)
|
|
|
3272 |
{
|
|
|
3273 |
return length;
|
|
|
3274 |
}
|
|
|
3275 |
|
|
|
3276 |
if (length < 1 || length >= KMaxPath)
|
|
|
3277 |
{
|
|
|
3278 |
return KErrArgument;
|
|
|
3279 |
}
|
|
|
3280 |
|
|
|
3281 |
HBuf* targetProcessName = HBuf::New(length);
|
|
|
3282 |
if (targetProcessName == NULL)
|
|
|
3283 |
{
|
|
|
3284 |
// Out of memory
|
|
|
3285 |
return KErrNoMemory;
|
|
|
3286 |
}
|
|
|
3287 |
|
|
|
3288 |
// Read the user-side data into buf
|
|
|
3289 |
TInt err = Kern::ThreadDesRead(iClientThread,a1,*targetProcessName,0,KChunkShiftBy0);
|
|
|
3290 |
if (err != KErrNone)
|
|
|
3291 |
{
|
|
|
3292 |
// Something bad happened so free the memory and return
|
|
|
3293 |
delete targetProcessName;
|
|
|
3294 |
return err;
|
|
|
3295 |
}
|
|
|
3296 |
|
|
|
3297 |
// Obtain the AgentId
|
|
|
3298 |
TUint64 debugAgentId = 0;
|
|
|
3299 |
|
|
|
3300 |
err = Kern::ThreadRawRead(iClientThread,a2,&debugAgentId,sizeof(debugAgentId));
|
|
|
3301 |
if (err == KErrNone)
|
|
|
3302 |
{
|
|
|
3303 |
// Remove the process from our list of tracked processes
|
|
|
3304 |
err = TheDProcessTracker.DetachProcess(*targetProcessName, debugAgentId);
|
|
|
3305 |
}
|
|
|
3306 |
|
|
|
3307 |
// Free the kernel-side memory containing targetProcessName data
|
|
|
3308 |
delete targetProcessName;
|
|
|
3309 |
return err;
|
|
|
3310 |
}
|
|
|
3311 |
|
|
|
3312 |
/* Register the detachment of a debug agent from all processes being debugged.
|
|
|
3313 |
*
|
|
|
3314 |
* @param - a1 - &TUint64 Debug Agent Id.
|
|
|
3315 |
* @return - KErrNone if successful. One of the system-wide error codes otherwise.
|
|
|
3316 |
*/
|
|
|
3317 |
TInt DRM_DebugChannel::DetachAgent(TAny* a1, TAny* a2)
|
|
|
3318 |
{
|
|
|
3319 |
// Obtain the AgentId
|
|
|
3320 |
TUint64 debugAgentId = 0;
|
|
|
3321 |
|
|
|
3322 |
TInt err = Kern::ThreadRawRead(iClientThread,a1,&debugAgentId,sizeof(debugAgentId));
|
|
|
3323 |
if (err != KErrNone)
|
|
|
3324 |
{
|
|
|
3325 |
return err;
|
|
|
3326 |
}
|
|
|
3327 |
|
|
|
3328 |
// Remove the process from our list of tracked processes
|
|
|
3329 |
return TheDProcessTracker.DetachAgent(debugAgentId);
|
|
|
3330 |
}
|
|
|
3331 |
|
|
|
3332 |
/* Set the action associated with a particular kernel event for a given agent and target process
|
|
|
3333 |
*
|
|
|
3334 |
* @param - a1 TDes8 target process name in a1
|
|
|
3335 |
* @param - a2 &TRM_DebugEventActionInfo
|
|
|
3336 |
* @return - KErrNone if successful. KErrArgument if the filepath is an invalid size. Or one of
|
|
|
3337 |
* the other system wide error codes if appropriate.
|
|
|
3338 |
*/
|
|
|
3339 |
TInt DRM_DebugChannel::SetEventAction(TAny* a1, TAny* a2)
|
|
|
3340 |
{
|
|
|
3341 |
// Validate the supplied TDes8 target process name in a1
|
|
|
3342 |
TInt length, maxLength;
|
|
|
3343 |
TUint8* aPtr;
|
|
|
3344 |
|
|
|
3345 |
TInt err = Kern::ThreadGetDesInfo(iClientThread,\
|
|
|
3346 |
a1,\
|
|
|
3347 |
length,\
|
|
|
3348 |
maxLength,\
|
|
|
3349 |
aPtr,\
|
|
|
3350 |
EFalse);
|
|
|
3351 |
if (err != KErrNone)
|
|
|
3352 |
{
|
|
|
3353 |
return err;
|
|
|
3354 |
}
|
|
|
3355 |
|
|
|
3356 |
if (length < 1 || length >= KMaxPath)
|
|
|
3357 |
{
|
|
|
3358 |
return KErrArgument;
|
|
|
3359 |
}
|
|
|
3360 |
|
|
|
3361 |
if (maxLength < 1 || maxLength >= KMaxPath)
|
|
|
3362 |
{
|
|
|
3363 |
return KErrArgument;
|
|
|
3364 |
}
|
|
|
3365 |
|
|
|
3366 |
// Allocate space to store the target process name in a kernelspace TPtr8
|
|
|
3367 |
NKern::ThreadEnterCS();
|
|
|
3368 |
TUint8* buffer = (TUint8*)Kern::AllocZ(length);
|
|
|
3369 |
NKern::ThreadLeaveCS();
|
|
|
3370 |
if (buffer==NULL)
|
|
|
3371 |
{
|
|
|
3372 |
// Out of memory
|
|
|
3373 |
return KErrNoMemory;
|
|
|
3374 |
}
|
|
|
3375 |
TPtr8 targetProcessName(buffer,length,length);
|
|
|
3376 |
|
|
|
3377 |
// Read the user-side data into targetProcessName
|
|
|
3378 |
err = Kern::ThreadDesRead(iClientThread,a1,targetProcessName,0,KChunkShiftBy0);
|
|
|
3379 |
if (err != KErrNone)
|
|
|
3380 |
{
|
|
|
3381 |
// Something bad happened so free the memory and return
|
|
|
3382 |
NKern::ThreadEnterCS();
|
|
|
3383 |
Kern::Free(buffer);
|
|
|
3384 |
NKern::ThreadLeaveCS();
|
|
|
3385 |
|
|
|
3386 |
return err;
|
|
|
3387 |
}
|
|
|
3388 |
|
|
|
3389 |
// Read the Event and Action from the user-side
|
|
|
3390 |
TRM_DebugEventActionInfo info(0,0,0);
|
|
|
3391 |
|
|
|
3392 |
err = Kern::ThreadRawRead(iClientThread, a2, &info, sizeof(info));
|
|
|
3393 |
if (err != KErrNone)
|
|
|
3394 |
{
|
|
|
3395 |
// Could not read event action data from the user-side
|
|
|
3396 |
|
|
|
3397 |
// Free memory used for targetProcessName
|
|
|
3398 |
NKern::ThreadEnterCS();
|
|
|
3399 |
Kern::Free(buffer);
|
|
|
3400 |
NKern::ThreadLeaveCS();
|
|
|
3401 |
|
|
|
3402 |
return err;
|
|
|
3403 |
}
|
|
|
3404 |
|
|
|
3405 |
DDebugAgent* debugAgent = TheDProcessTracker.FindAgentForProcessAndId( targetProcessName, info.iAgentId );
|
|
|
3406 |
if (debugAgent != NULL)
|
|
|
3407 |
{
|
|
|
3408 |
// Set the event action
|
|
|
3409 |
err = debugAgent->SetEventAction((TEventType)info.iEvent,(TKernelEventAction)info.iAction);
|
|
|
3410 |
}
|
|
|
3411 |
else
|
|
|
3412 |
{
|
|
|
3413 |
// Bad agent means there is no tracking agent
|
|
|
3414 |
LOG_MSG2("Cannot locate debug agent with pid 0x%0xlx",info.iAgentId);
|
|
|
3415 |
err = KErrNotFound;
|
|
|
3416 |
}
|
|
|
3417 |
|
|
|
3418 |
// Free memory used for targetProcessName
|
|
|
3419 |
NKern::ThreadEnterCS();
|
|
|
3420 |
Kern::Free(buffer);
|
|
|
3421 |
NKern::ThreadLeaveCS();
|
|
|
3422 |
|
|
|
3423 |
return err;
|
|
|
3424 |
|
|
|
3425 |
}
|
|
|
3426 |
|
|
|
3427 |
TInt DRM_DebugChannel::Step(const TUint32 aThreadId, const TUint32 aNumSteps)
|
|
|
3428 |
{
|
|
|
3429 |
LOG_MSG3("DRM_DebugChannel::Step(aThreadId = 0x%08x, aNumSteps = 0x%08x)\n",aThreadId,aNumSteps);
|
|
|
3430 |
|
|
|
3431 |
DThread* thread = DebugUtils::OpenThreadHandle(aThreadId);
|
|
|
3432 |
|
|
|
3433 |
if (thread == NULL)
|
|
|
3434 |
{
|
|
|
3435 |
// The thread terminated before we could open it.
|
|
|
3436 |
LOG_MSG2("DRM_DebugChannel::Step - Could not open thread %u", aThreadId);
|
|
|
3437 |
|
|
|
3438 |
return KErrArgument;
|
|
|
3439 |
}
|
|
|
3440 |
|
|
|
3441 |
// We simply repeat this for desired number of steps
|
|
|
3442 |
TInt err = KErrNone;
|
|
|
3443 |
|
|
|
3444 |
// Need to step from the current location for 'n' steps
|
|
|
3445 |
TUint32 startAddress;
|
|
|
3446 |
|
|
|
3447 |
// We always step from the current PC.
|
|
|
3448 |
err = ReadKernelRegisterValue(thread, PC_REGISTER, startAddress);
|
|
|
3449 |
if(err != KErrNone)
|
|
|
3450 |
{
|
|
|
3451 |
LOG_MSG2("DRM_DebugChannel::Step - Could not read the PC: %d", err);
|
|
|
3452 |
|
|
|
3453 |
// Close the handle
|
|
|
3454 |
thread->Close(NULL);
|
|
|
3455 |
|
|
|
3456 |
return err;
|
|
|
3457 |
}
|
|
|
3458 |
|
|
|
3459 |
err = DoStepRange(thread, startAddress, startAddress, ETrue, EFalse, aNumSteps, ETrue);
|
|
|
3460 |
|
|
|
3461 |
if (err != KErrNone)
|
|
|
3462 |
{
|
|
|
3463 |
// There was a problem, return straightaway
|
|
|
3464 |
LOG_MSG("DRM_DebugChannel::Step - failed to step");
|
|
|
3465 |
}
|
|
|
3466 |
|
|
|
3467 |
// Close the handle
|
|
|
3468 |
thread->Close(NULL);
|
|
|
3469 |
|
|
|
3470 |
return err;
|
|
|
3471 |
}
|
|
|
3472 |
|
|
|
3473 |
TInt DRM_DebugChannel::KillProcess(const TUint32 aProcessId, const TInt aReason)
|
|
|
3474 |
{
|
|
|
3475 |
LOG_MSG3("DRM_DebugChannel::KillProcess(aProcessId = 0x%08x, aReason = 0x%08x)\n",aProcessId,aReason);
|
|
|
3476 |
|
|
|
3477 |
DProcess* process = DebugUtils::OpenProcessHandle(aProcessId);
|
|
|
3478 |
|
|
|
3479 |
if (process == NULL)
|
|
|
3480 |
{
|
|
|
3481 |
// The process terminated before we could open it to kill it ourselves.
|
|
|
3482 |
LOG_MSG2("DRM_DebugChannel::KillProcess - Could not open process %u", aProcessId);
|
|
|
3483 |
|
|
|
3484 |
return KErrArgument;
|
|
|
3485 |
}
|
|
|
3486 |
|
|
|
3487 |
TInt err = KErrNone;
|
|
|
3488 |
|
|
|
3489 |
DebugSupport::TerminateProcess(process,aReason);
|
|
|
3490 |
|
|
|
3491 |
// Close the handle
|
|
|
3492 |
process->Close(NULL);
|
|
|
3493 |
|
|
|
3494 |
return err;
|
|
|
3495 |
}
|
|
|
3496 |
|
|
|
3497 |
/* Security critical - this checks whether the specified process is debuggable or not
|
|
|
3498 |
*
|
|
|
3499 |
* @param aProcessId - The process id of the process to check
|
|
|
3500 |
* @return KErrNone if debuggable, KErrPermissionDenied if not debuggable.
|
|
|
3501 |
*/
|
|
|
3502 |
TInt DRM_DebugChannel::IsDebuggable(const TUint32 aProcessId)
|
|
|
3503 |
{
|
|
|
3504 |
/* In order to ensure that only processes which are debuggable
|
|
|
3505 |
* can be debugged, this function enables the security server
|
|
|
3506 |
* to read the DProcess.iDebugAttributes field and ensure
|
|
|
3507 |
* the process was created from a debuggable executable.
|
|
|
3508 |
*/
|
|
|
3509 |
LOG_MSG2("DRM_DebugChannel::IsDebuggable(aProcessId 0x%08x)\n",aProcessId);
|
|
|
3510 |
|
|
|
3511 |
TInt err = KErrPermissionDenied;
|
|
|
3512 |
|
|
|
3513 |
DProcess* process = DebugUtils::OpenProcessHandle(aProcessId);
|
|
|
3514 |
if (process)
|
|
|
3515 |
{
|
|
|
3516 |
if (process->iDebugAttributes & TProcessCreateInfo::EDebugAllowed)
|
|
|
3517 |
{
|
|
|
3518 |
// Yes this process exists and is debuggable
|
|
|
3519 |
err = KErrNone;
|
|
|
3520 |
}
|
|
|
3521 |
process->Close(NULL);
|
|
|
3522 |
}
|
|
|
3523 |
|
|
|
3524 |
if (err == KErrNone)
|
|
|
3525 |
{
|
|
|
3526 |
LOG_MSG2("DRM_DebugChannel::IsDebuggable(aProcessId 0x%08x) - Yes it is debuggable\n",aProcessId);
|
|
|
3527 |
}
|
|
|
3528 |
|
|
|
3529 |
return err;
|
|
|
3530 |
}
|