1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/kernel/eka/compsupp/rvct2_1/sftfpini.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,70 @@
     1.4 +// Copyright (c) 2002-2009 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 "ARM EABI LICENCE.txt"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// in kernel/eka/compsupp.
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#include <e32std.h>
    1.20 +#include <e32std_private.h>
    1.21 +
    1.22 +// support functions for ARM supplied softvfp compiler-helper functions
    1.23 +
    1.24 +extern "C" {
    1.25 +
    1.26 +//void __rt_fp_status_register_cleanup(TAny * aReg)
    1.27 +//	{
    1.28 +//	delete aReg;
    1.29 +//	}
    1.30 +
    1.31 +// set up the fp status register 
    1.32 +EXPORT_C  void _fp_init(void) 
    1.33 +	{
    1.34 +	TUint32 * aReg = (TUint32 *)User::AllocZ(sizeof(TUint32));
    1.35 +	if (aReg) 
    1.36 +		{
    1.37 +		Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/);
    1.38 +		}
    1.39 +	else
    1.40 +		{
    1.41 +		// This will force us to try again if we actually get an FP 
    1.42 +		// exception later.
    1.43 +		Dll::SetTls(0 /*, __rt_fp_status_register_cleanup*/);
    1.44 +		}
    1.45 +	}
    1.46 +  
    1.47 +EXPORT_C TAny * __rt_fp_status_addr(void) 
    1.48 +	{ 
    1.49 +	//return &__fp_status_register; 
    1.50 +	TAny* aTls = Dll::Tls();
    1.51 +	if (aTls)
    1.52 +		return aTls;
    1.53 +	// we obviously failed to set it up before. Try again, so we can
    1.54 +	// at least try to error meaningfully
    1.55 +	TUint32* aReg = (TUint32*)User::AllocZ(sizeof(TUint32));
    1.56 +	_LIT(KFpGeneralPanic, "FP Emulator");
    1.57 +	if (aReg) 
    1.58 +		{
    1.59 +		TInt r = Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/);
    1.60 +		if (r==KErrNone)
    1.61 +			return aReg;
    1.62 +		// if we get here we really in trouble. Just Panic.
    1.63 +		User::Panic(KFpGeneralPanic, KErrGeneral);
    1.64 +		}
    1.65 +	else
    1.66 +		{
    1.67 +		// If we get here, we're toast anyway....
    1.68 +		User::Panic(KFpGeneralPanic, KErrNoMemory);
    1.69 +		}
    1.70 +	return 0;
    1.71 +	}
    1.72 +}
    1.73 +