kernel/eka/drivers/trace/arm/btracex.cia
author Tom Cosgrove <tom.cosgrove@nokia.com>
Fri, 28 May 2010 16:29:07 +0100
changeset 30 8aab599e3476
parent 0 a41df078684a
permissions -rw-r--r--
Fix for bug 2283 (RVCT 4.0 support is missing from PDK 3.0.h) Have multiple extension sections in the bld.inf, one for each version of the compiler. The RVCT version building the tools will build the runtime libraries for its version, but make sure we extract all the other versions from zip archives. Also add the archive for RVCT4.

// 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