sl@0: // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32\drivers\trace\arm\btracex.cia
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32cia.h>
sl@0: #include <kernel/kern_priv.h>
sl@0: #include "drivers/btrace.h"
sl@0: #ifndef __SMP__
sl@0: #include "highrestimer.h"
sl@0: #endif
sl@0: 
sl@0: #ifdef BTRACE_DRIVER_MACHINE_CODED
sl@0: 
sl@0: #ifndef HAS_HIGH_RES_TIMER
sl@0: //#undef BTRACE_INCLUDE_TIMESTAMPS
sl@0: #endif
sl@0: 
sl@0: __NAKED__ TBool TBTraceBufferK::TraceWithTimestamp2(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)
sl@0: 	{
sl@0: #ifdef BTRACE_INCLUDE_TIMESTAMPS
sl@0: #define USE_TIMESTAMP2 
sl@0: #include "btracex_impl.cia"
sl@0: #undef USE_TIMESTAMP2
sl@0: #endif // If compiling without timestamp support this function falls through to the normal Trace()...
sl@0: 	}
sl@0: 
sl@0: __NAKED__ TBool TBTraceBufferK::Trace(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)
sl@0: 	{
sl@0: #include "btracex_impl.cia"
sl@0: 
sl@0: 	asm("trace_dropped: ");		// get here with r5 = &user_buffer
sl@0: 	asm("mov	r0, #0 ");
sl@0: 	asm("str	r0, [r10, #%a0]" : : "i" _FOFF(TBTraceBufferK,iRequestDataSize));
sl@0: 
sl@0: 	asm("trace_off:");			// get here with r5 = &user_buffer
sl@0: 	asm("ldr	r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));
sl@0: 	asm("str	r10, [r10,#%a0]" : : "i" _FOFF(TBTraceBufferK,iDropped));	// flag we dropped a trace
sl@0: #ifdef __SMP__
sl@0: 	__DATA_MEMORY_BARRIER_Z__(r8);		// make sure head pointer update seen before generation update
sl@0: #endif
sl@0: 	asm("add	r7, r7, #1 ");
sl@0: 	asm("str	r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));	// make sure iGeneration doesn't go out of sync
sl@0: 
sl@0: 	asm("done:");
sl@0: 	asm("add	sp, sp, #16 ");			// drop args
sl@0: 	asm("ldmfd	sp!, {r4-r12,lr} ");
sl@0: 	asm("mov	r0, #1 ");				// return TRUE
sl@0: #ifndef __SMP__
sl@0: 	asm("msr	cpsr_c, r12 ");			// restore interrupts
sl@0: #endif
sl@0: 	__JUMP(,lr);
sl@0: 
sl@0: 	asm("__Buffer: ");
sl@0: 	asm(".word Buffer ");
sl@0: 	asm("__03020100: ");
sl@0: 	asm(".word 0x03020100 ");
sl@0: 	asm("__04040404: ");
sl@0: 	asm(".word 0x04040404 ");
sl@0: 	}
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: #endif // BTRACE_DRIVER_MACHINE_CODED