author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 02 Sep 2010 21:54:16 +0300 | |
changeset 259 | 57b9594f5772 |
permissions | -rw-r--r-- |
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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 the License "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Device driver for kernel side stop mode debugging |
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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 <kernel/kdebug.h> |
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#include "debug_logging.h" |
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#include "d_debug_functionality.h" |
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#include "debug_utils.h" |
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#include "d_buffer_manager.h" |
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using namespace Debug; |
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DStopModeExtension* TheStopModeExtension = NULL; |
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/** |
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This value is used as an initialiser for the size of the Stop-Mode Debug API's |
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default request buffer. |
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*/ |
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const TInt KRequestBufferSize = 0x200; |
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/** |
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This value is used as an initialiser for the size of the Stop-Mode Debug API's |
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default response buffer. |
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*/ |
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const TInt KResponseBufferSize = 0x1000; |
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DECLARE_STANDARD_EXTENSION() |
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{ |
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__KTRACE_OPT(KBOOT,Kern::Printf("Starting Stop Mode Debugger V2")); |
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// get a reference to the DDebuggerInfo and to the DStopModeExtension |
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TSuperPage& superPage = Kern::SuperPage(); |
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if(!superPage.iDebuggerInfo) |
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{ |
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//kdebug has not been installed so create DDebuggerInfo using our stub constructor |
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superPage.iDebuggerInfo = new DDebuggerInfo(); |
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} |
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if(!TheStopModeExtension) |
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{ |
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TheStopModeExtension = new DStopModeExtension(); |
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} |
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// create the request buffer and store a reference to it |
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TTag tag; |
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tag.iTagId = EBuffersRequest; |
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tag.iType = ETagTypePointer; |
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tag.iSize = KRequestBufferSize; |
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TInt err = TheDBufferManager.CreateBuffer(tag); |
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if(KErrNone != err) |
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{ |
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return KErrNone; |
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} |
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// create the response buffer and store a reference to it |
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tag.iTagId = EBuffersResponse; |
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tag.iSize = KResponseBufferSize; |
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err = TheDBufferManager.CreateBuffer(tag); |
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if(KErrNone != err) |
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{ |
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return KErrNone; |
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} |
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// create the debug functionality buffer and store a reference to it |
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TDebugFunctionality df; |
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TUint dfSize = df.GetStopModeFunctionalityBufSize(); |
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tag.iTagId = EBuffersFunctionality; |
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tag.iSize = dfSize; |
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err = TheDBufferManager.CreateBuffer(tag); |
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if(KErrNone != err) |
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{ |
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return KErrNone; |
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} |
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|
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// fill the functionality buffer with the functionality data and store it in |
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// the super page |
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TPtr8 dfBlockPtr((TUint8*)tag.iValue, dfSize); |
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if(!df.GetStopModeFunctionality(dfBlockPtr)) |
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{ |
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return KErrNone; |
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} |
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TheStopModeExtension->iFunctionalityBlock = (DFunctionalityBlock*)tag.iValue; |
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|
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DStopModeExtension::Install(TheStopModeExtension); |
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|
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return KErrNone; |
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} |
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|
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/** |
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* This stub constructor is intended to be used in the case where the old deprecated |
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* stop mode api, kdebug, is not in place. It will initialise all values to NULL except |
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* the pointer to the new stop mode api extension. This allows the new stop mode solution |
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* to both co-exist and exist independantly of the existing one * |
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*/ |
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DDebuggerInfo::DDebuggerInfo(): |
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iObjectOffsetTable(NULL), |
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iObjectOffsetTableCount(NULL), |
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iThreadContextTable(NULL), |
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iStopModeExtension(new DStopModeExtension()), |
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iContainers(NULL), |
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iCodeSegLock(NULL), |
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iCodeSegGlobalList(NULL), |
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iScheduler(NULL), |
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iShadowPages(NULL), |
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iShadowPageCount(0), |
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iCurrentThread(NULL), |
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iEventMask(), |
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iEventHandlerBreakpoint(0), |
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iMemModelObjectOffsetTable(NULL), |
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iMemModelObjectOffsetTableCount(0) |
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{ |
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} |
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|
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/** |
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* Installs the stop-mode debugger extension |
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* Make the stop-mode API visible to a JTAG debugger, by publishing its |
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* existence in the superpage |
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*/ |
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void DStopModeExtension::Install(DStopModeExtension* aExt) |
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{ |
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Kern::SuperPage().iDebuggerInfo->iStopModeExtension = aExt; |
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} |