// 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:

 // e32\drivers\trace\arm\btracex.cia

 // 

 //

 #include <e32cia.h>

 #include <kernel/kern_priv.h>

 #include "drivers/btrace.h"

 #ifndef __SMP__

 #include "highrestimer.h"

 #endif

 #ifdef BTRACE_DRIVER_MACHINE_CODED

 #ifndef HAS_HIGH_RES_TIMER

 //#undef BTRACE_INCLUDE_TIMESTAMPS

 #endif

 __NAKED__ TBool TBTraceBufferK::TraceWithTimestamp2(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)

 	{

 #ifdef BTRACE_INCLUDE_TIMESTAMPS

 #define USE_TIMESTAMP2 

 #include "btracex_impl.cia"

 #undef USE_TIMESTAMP2

 #endif // If compiling without timestamp support this function falls through to the normal Trace()...

 	}

 __NAKED__ TBool TBTraceBufferK::Trace(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)

 	{

 #include "btracex_impl.cia"

 	asm("trace_dropped: ");		// get here with r5 = &user_buffer

 	asm("mov	r0, #0 ");

 	asm("str	r0, [r10, #%a0]" : : "i" _FOFF(TBTraceBufferK,iRequestDataSize));

 	asm("trace_off:");			// get here with r5 = &user_buffer

 	asm("ldr	r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));

 	asm("str	r10, [r10,#%a0]" : : "i" _FOFF(TBTraceBufferK,iDropped));	// flag we dropped a trace

 #ifdef __SMP__

 	__DATA_MEMORY_BARRIER_Z__(r8);		// make sure head pointer update seen before generation update

 #endif

 	asm("add	r7, r7, #1 ");

 	asm("str	r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));	// make sure iGeneration doesn't go out of sync

 	asm("done:");

 	asm("add	sp, sp, #16 ");			// drop args

 	asm("ldmfd	sp!, {r4-r12,lr} ");

 	asm("mov	r0, #1 ");				// return TRUE

 #ifndef __SMP__

 	asm("msr	cpsr_c, r12 ");			// restore interrupts

 #endif

 	__JUMP(,lr);

 	asm("__Buffer: ");

 	asm(".word Buffer ");

 	asm("__03020100: ");

 	asm(".word 0x03020100 ");

 	asm("__04040404: ");

 	asm(".word 0x04040404 ");

 	}

 #endif // BTRACE_DRIVER_MACHINE_CODED