--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/include/drivers/btrace.h	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,59 @@
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <d32btrace.h>
+
+class TBTraceBufferK
+	{
+public:
+	TLinAddr			iAddress;
+	TUint				iStart;
+	TUint				iEnd;
+	TUint				iHead;
+	volatile TInt		iRequestDataSize;
+	TUint8*				iRecordOffsets;
+	TUint				iDropped;
+	DChunk*				iBufferChunk;
+	volatile TDfc*		iWaitingDfc;
+	BTrace::THandler	iOldBTraceHandler;
+	BTrace::TControlFunction	iOldBTraceControl;
+	TBool				iTimestamp2Enabled;
+	TUint				iCrashReadPart;
+public:
+	TInt Create(TInt aSize);
+	void Close();
+	void Reset(TUint aMode);
+	TInt RequestData(TInt aSize, TDfc* aDfc);
+	static TBool Trace(TUint32 aHeader,TUint32 aHeader2,const TUint32 aContext,const TUint32 a1,const TUint32 a2,const TUint32 a3,const TUint32 aExtra,const TUint32 aPc);
+	static TBool TraceWithTimestamp2(TUint32 aHeader,TUint32 aHeader2,const TUint32 aContext,const TUint32 a1,const TUint32 a2,const TUint32 a3,const TUint32 aExtra,const TUint32 aPc);	
+	static TInt ControlFunction(BTrace::TControl aFunction, TAny* aArg1, TAny* aArg2);
+	void CrashRead(TUint8*& aData, TUint& aSize);
+private:
+	static TBool Trace_Impl(TUint32 aHeader,TUint32 aHeader2,const TUint32 aContext,const TUint32 a1,const TUint32 a2,const TUint32 a3,const TUint32 aExtra, const TUint32 aPc, const TBool aIncTimestamp2);
+	};
+
+extern TBTraceBufferK Buffer;
+
+/**
+If this macro is defined a timestamp is added to each fast-trace record; if supported by the platform.
+*/
+#define BTRACE_INCLUDE_TIMESTAMPS
+
+#ifdef __MARM__
+#ifndef __SMP__
+#define BTRACE_DRIVER_MACHINE_CODED
+#endif
+#endif
+