/*

* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* 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 <e32std.h>

#include <e32std_private.h>

// 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;

	}

}