sl@0: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "ARM EABI LICENCE.txt"
sl@0: // which accompanies this distribution, and is available
sl@0: // in kernel/eka/compsupp.
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <e32std_private.h>
sl@0: 
sl@0: // support functions for ARM supplied softvfp compiler-helper functions
sl@0: 
sl@0: extern "C" {
sl@0: 
sl@0: //void __rt_fp_status_register_cleanup(TAny * aReg)
sl@0: //	{
sl@0: //	delete aReg;
sl@0: //	}
sl@0: 
sl@0: // set up the fp status register 
sl@0: EXPORT_C  void _fp_init(void) 
sl@0: 	{
sl@0: 	TUint32 * aReg = (TUint32 *)User::AllocZ(sizeof(TUint32));
sl@0: 	if (aReg) 
sl@0: 		{
sl@0: 		Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		// This will force us to try again if we actually get an FP 
sl@0: 		// exception later.
sl@0: 		Dll::SetTls(0 /*, __rt_fp_status_register_cleanup*/);
sl@0: 		}
sl@0: 	}
sl@0:   
sl@0: EXPORT_C TAny * __rt_fp_status_addr(void) 
sl@0: 	{ 
sl@0: 	//return &__fp_status_register; 
sl@0: 	TAny* aTls = Dll::Tls();
sl@0: 	if (aTls)
sl@0: 		return aTls;
sl@0: 	// we obviously failed to set it up before. Try again, so we can
sl@0: 	// at least try to error meaningfully
sl@0: 	TUint32* aReg = (TUint32*)User::AllocZ(sizeof(TUint32));
sl@0: 	_LIT(KFpGeneralPanic, "FP Emulator");
sl@0: 	if (aReg) 
sl@0: 		{
sl@0: 		TInt r = Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/);
sl@0: 		if (r==KErrNone)
sl@0: 			return aReg;
sl@0: 		// if we get here we really in trouble. Just Panic.
sl@0: 		User::Panic(KFpGeneralPanic, KErrGeneral);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		// If we get here, we're toast anyway....
sl@0: 		User::Panic(KFpGeneralPanic, KErrNoMemory);
sl@0: 		}
sl@0: 	return 0;
sl@0: 	}
sl@0: }
sl@0: