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// Copyright (c) 2005-2009 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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// e32\drivers\trace\arm\btracex.cia
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//
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//
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#include <e32cia.h>
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#include <kernel/kern_priv.h>
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#include "drivers/btrace.h"
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#ifndef __SMP__
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#include "highrestimer.h"
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#endif
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#ifdef BTRACE_DRIVER_MACHINE_CODED
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#ifndef HAS_HIGH_RES_TIMER
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//#undef BTRACE_INCLUDE_TIMESTAMPS
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#endif
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__NAKED__ TBool TBTraceBufferK::TraceWithTimestamp2(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)
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{
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#ifdef BTRACE_INCLUDE_TIMESTAMPS
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#define USE_TIMESTAMP2
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#include "btracex_impl.cia"
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#undef USE_TIMESTAMP2
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#endif // If compiling without timestamp support this function falls through to the normal Trace()...
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}
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__NAKED__ TBool TBTraceBufferK::Trace(TUint32 aHeader,TUint32 aHeader2,TUint32 aContext,TUint32 a1,TUint32 a2,TUint32 a3,TUint32 aExtra,TUint32 aPc)
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{
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#include "btracex_impl.cia"
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asm("trace_dropped: "); // get here with r5 = &user_buffer
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asm("mov r0, #0 ");
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asm("str r0, [r10, #%a0]" : : "i" _FOFF(TBTraceBufferK,iRequestDataSize));
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asm("trace_off:"); // get here with r5 = &user_buffer
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asm("ldr r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration));
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asm("str r10, [r10,#%a0]" : : "i" _FOFF(TBTraceBufferK,iDropped)); // flag we dropped a trace
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#ifdef __SMP__
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__DATA_MEMORY_BARRIER_Z__(r8); // make sure head pointer update seen before generation update
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#endif
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asm("add r7, r7, #1 ");
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asm("str r7, [r5, #%a0]" : : "i" _FOFF(TBTraceBuffer,iGeneration)); // make sure iGeneration doesn't go out of sync
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asm("done:");
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asm("add sp, sp, #16 "); // drop args
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asm("ldmfd sp!, {r4-r12,lr} ");
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asm("mov r0, #1 "); // return TRUE
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#ifndef __SMP__
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asm("msr cpsr_c, r12 "); // restore interrupts
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#endif
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__JUMP(,lr);
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asm("__Buffer: ");
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asm(".word Buffer ");
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asm("__03020100: ");
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asm(".word 0x03020100 ");
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asm("__04040404: ");
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asm(".word 0x04040404 ");
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}
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#endif // BTRACE_DRIVER_MACHINE_CODED
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