1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/kernel/eka/drivers/trace/arm/btracex.cia	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,77 @@
     1.4 +// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// e32\drivers\trace\arm\btracex.cia
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#include <e32cia.h>
    1.22 +#include <kernel/kern_priv.h>
    1.23 +#include "drivers/btrace.h"
    1.24 +#ifndef __SMP__
    1.25 +#include "highrestimer.h"
    1.26 +#endif
    1.27 +
    1.28 +#ifdef BTRACE_DRIVER_MACHINE_CODED
    1.29 +
    1.30 +#ifndef HAS_HIGH_RES_TIMER
    1.31 +//#undef BTRACE_INCLUDE_TIMESTAMPS
    1.32 +#endif
    1.33 +
    1.34 +__NAKED__ TBool TBTraceBufferK::TraceWithTimestamp2(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)
    1.35 +	{
    1.36 +#ifdef BTRACE_INCLUDE_TIMESTAMPS
    1.37 +#define USE_TIMESTAMP2 
    1.38 +#include "btracex_impl.cia"
    1.39 +#undef USE_TIMESTAMP2
    1.40 +#endif // If compiling without timestamp support this function falls through to the normal Trace()...
    1.41 +	}
    1.42 +
    1.43 +__NAKED__ TBool TBTraceBufferK::Trace(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)
    1.44 +	{
    1.45 +#include "btracex_impl.cia"
    1.46 +
    1.47 +	asm("trace_dropped: ");		// get here with r5 = &user_buffer
    1.48 +	asm("mov	r0, #0 ");
    1.49 +	asm("str	r0, [r10, #%a0]" : : "i" _FOFF(TBTraceBufferK,iRequestDataSize));
    1.50 +
    1.51 +	asm("trace_off:");			// get here with r5 = &user_buffer
    1.52 +	asm("ldr	r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));
    1.53 +	asm("str	r10, [r10,#%a0]" : : "i" _FOFF(TBTraceBufferK,iDropped));	// flag we dropped a trace
    1.54 +#ifdef __SMP__
    1.55 +	__DATA_MEMORY_BARRIER_Z__(r8);		// make sure head pointer update seen before generation update
    1.56 +#endif
    1.57 +	asm("add	r7, r7, #1 ");
    1.58 +	asm("str	r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));	// make sure iGeneration doesn't go out of sync
    1.59 +
    1.60 +	asm("done:");
    1.61 +	asm("add	sp, sp, #16 ");			// drop args
    1.62 +	asm("ldmfd	sp!, {r4-r12,lr} ");
    1.63 +	asm("mov	r0, #1 ");				// return TRUE
    1.64 +#ifndef __SMP__
    1.65 +	asm("msr	cpsr_c, r12 ");			// restore interrupts
    1.66 +#endif
    1.67 +	__JUMP(,lr);
    1.68 +
    1.69 +	asm("__Buffer: ");
    1.70 +	asm(".word Buffer ");
    1.71 +	asm("__03020100: ");
    1.72 +	asm(".word 0x03020100 ");
    1.73 +	asm("__04040404: ");
    1.74 +	asm(".word 0x04040404 ");
    1.75 +	}
    1.76 +
    1.77 +
    1.78 +
    1.79 +
    1.80 +#endif // BTRACE_DRIVER_MACHINE_CODED