diff -r 000000000000 -r 96e5fb8b040d kernel/eka/compsupp/rvct2_2/sftfpini.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/kernel/eka/compsupp/rvct2_2/sftfpini.cpp Thu Dec 17 09:24:54 2009 +0200 @@ -0,0 +1,73 @@ +/* +* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "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: +* +*/ + + +#include +#include + +// support functions for ARM supplied softvfp compiler-helper functions + +extern "C" { + +//void __rt_fp_status_register_cleanup(TAny * aReg) +// { +// delete aReg; +// } + +// set up the fp status register +EXPORT_C void _fp_init(void) + { + TUint32 * aReg = (TUint32 *)User::AllocZ(sizeof(TUint32)); + if (aReg) + { + Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/); + } + else + { + // This will force us to try again if we actually get an FP + // exception later. + Dll::SetTls(0 /*, __rt_fp_status_register_cleanup*/); + } + } + +EXPORT_C TAny * __rt_fp_status_addr(void) + { + //return &__fp_status_register; + TAny* aTls = Dll::Tls(); + if (aTls) + return aTls; + // we obviously failed to set it up before. Try again, so we can + // at least try to error meaningfully + TUint32* aReg = (TUint32*)User::AllocZ(sizeof(TUint32)); + _LIT(KFpGeneralPanic, "FP Emulator"); + if (aReg) + { + TInt r = Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/); + if (r==KErrNone) + return aReg; + // if we get here we really in trouble. Just Panic. + User::Panic(KFpGeneralPanic, KErrGeneral); + } + else + { + // If we get here, we're toast anyway.... + User::Panic(KFpGeneralPanic, KErrNoMemory); + } + return 0; + } +} +