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// Copyright (c) 1994-2009 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\nkern\x86\ncutils.cpp
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//
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//
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#include <x86.h>
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//#define __DBG_MON_FAULT__
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//#define __RAM_LOADED_CODE__
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//#define __EARLY_DEBUG__
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void InitFpu();
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TUint32 ContextId()
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{
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switch(NKern::CurrentContext())
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{
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case NKern::EThread:
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return (TUint32)NKern::CurrentThread();
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case NKern::EIDFC:
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return 3;
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case NKern::EInterrupt:
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return 2;
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default:
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return 0;
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}
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}
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EXPORT_C TBool BTrace::Out(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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TUint32 pc = (&a0)[-1]; // return address on X86
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return traceData.iHandler(a0,0,0,a1,a2,a3,0,pc);
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}
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EXPORT_C TBool BTrace::OutX(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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return traceData.iHandler(a0,0,context,a1,a2,a3,0,pc);
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}
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EXPORT_C TBool BTrace::OutN(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 pc = (&a0)[-1]; // return address on X86
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if(!aDataSize)
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return traceData.iHandler(a0,0,0,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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return traceData.iHandler(a0,0,0,a1,a2,*(TUint32*)aData,0,pc);
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else
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return traceData.iHandler(a0,0,0,a1,a2,(TUint32)aData,0,pc);
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}
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EXPORT_C TBool BTrace::OutNX(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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if(!aDataSize)
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return traceData.iHandler(a0,0,context,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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return traceData.iHandler(a0,0,context,a1,a2,*(TUint32*)aData,0,pc);
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else
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return traceData.iHandler(a0,0,context,a1,a2,(TUint32)aData,0,pc);
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}
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EXPORT_C TBool BTrace::OutBig(TUint32 a0, TUint32 a1, const TAny* aData, TInt aDataSize)
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{
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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return DoOutBig(a0,a1,aData,aDataSize,context,pc);
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}
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EXPORT_C TBool BTrace::OutFiltered(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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TUint32 pc = (&a0)[-1]; // return address on X86
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return traceData.iHandler(a0,0,0,a1,a2,a3,0,pc);
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}
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EXPORT_C TBool BTrace::OutFilteredX(TUint32 a0, TUint32 a1, TUint32 a2, TUint32 a3)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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return traceData.iHandler(a0,0,context,a1,a2,a3,0,pc);
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}
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EXPORT_C TBool BTrace::OutFilteredN(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 pc = (&a0)[-1]; // return address on X86
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if(!aDataSize)
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return traceData.iHandler(a0,0,0,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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return traceData.iHandler(a0,0,0,a1,a2,*(TUint32*)aData,0,pc);
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else
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return traceData.iHandler(a0,0,0,a1,a2,(TUint32)aData,0,pc);
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}
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EXPORT_C TBool BTrace::OutFilteredNX(TUint32 a0, TUint32 a1, TUint32 a2, const TAny* aData, TInt aDataSize)
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{
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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if(TUint(aDataSize)>KMaxBTraceDataArray)
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{
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aDataSize = KMaxBTraceDataArray;
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a0 |= BTrace::ERecordTruncated<<(BTrace::EFlagsIndex*8);
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}
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a0 += aDataSize<<(BTrace::ESizeIndex*8);
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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if(!aDataSize)
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return traceData.iHandler(a0,0,context,a1,a2,0,0,pc);
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else if(aDataSize<=4)
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return traceData.iHandler(a0,0,context,a1,a2,*(TUint32*)aData,0,pc);
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else
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return traceData.iHandler(a0,0,context,a1,a2,(TUint32)aData,0,pc);
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}
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EXPORT_C TBool BTrace::OutFilteredBig(TUint32 a0, TUint32 a1, const TAny* aData, TInt aDataSize)
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{
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TUint32 context = ContextId();
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TUint32 pc = (&a0)[-1]; // return address on X86
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SBTraceData& traceData = BTraceData;
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if(!traceData.iFilter[(a0>>BTrace::ECategoryIndex*8)&0xff])
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return FALSE;
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if(!traceData.CheckFilter2(a1))
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return FALSE;
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return DoOutBig(a0,a1,aData,aDataSize,context,pc);
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}
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EXPORT_C TBool BTrace::OutFilteredPcFormatBig(TUint32 aHeader, TUint32 aModuleUid, TUint32 aPc, TUint16 aFormatId, const TAny* aData, TInt aDataSize)
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{
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return EFalse; //kernel side not implemented yet
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}
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TInt BTraceDefaultControl(BTrace::TControl /*aFunction*/, TAny* /*aArg1*/, TAny* /*aArg2*/)
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{
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return KErrNotSupported;
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}
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EXPORT_C void BTrace::SetHandlers(BTrace::THandler aNewHandler, BTrace::TControlFunction aNewControl, BTrace::THandler& aOldHandler, BTrace::TControlFunction& aOldControl)
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{
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TUint irq = NKern::DisableAllInterrupts();
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aOldHandler = BTraceData.iHandler;
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BTraceData.iHandler = aNewHandler;
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TheScheduler.iBTraceHandler = aNewHandler;
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aOldControl = BTraceData.iControl;
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BTraceData.iControl = aNewControl ? aNewControl : BTraceDefaultControl;
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NKern::RestoreInterrupts(irq);
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}
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EXPORT_C TInt BTrace::SetFilter(TUint aCategory, TInt aValue)
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{
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if(!IsSupported(aCategory))
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return KErrNotSupported;
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TUint8* filter = BTraceData.iFilter+aCategory;
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TUint oldValue = *filter;
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if(TUint(aValue)<=1u)
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{
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*filter = (TUint8)aValue;
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BTraceContext4(BTrace::EMetaTrace, BTrace::EMetaTraceFilterChange, (TUint8)aCategory | (aValue<<8));
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if(aCategory==ECpuUsage)
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{
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TheScheduler.iCpuUsageFilter = (TUint8)aValue;
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}
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}
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return oldValue;
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}
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EXPORT_C SCpuIdleHandler* NKern::CpuIdleHandler()
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{
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return &::CpuIdleHandler;
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}
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void NKern::Init0(TAny*)
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{
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InitFpu();
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}
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EXPORT_C TUint32 NKern::CpuTimeMeasFreq()
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{
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#ifdef MONITOR_THREAD_CPU_TIME
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return 1862000000; // FIXME!!!!
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#else
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return 0;
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#endif
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}
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