author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 21:31:10 +0200 | |
changeset 45 | 329ab0095843 |
parent 44 | 36bfc973b146 |
permissions | -rw-r--r-- |
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// Copyright (c) 2002-2009 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 "ARM EABI LICENCE.txt" |
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// which accompanies this distribution, and is available |
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// in kernel/eka/compsupp. |
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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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// |
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#include <e32std.h> |
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#include <e32std_private.h> |
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// support functions for ARM supplied softvfp compiler-helper functions |
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extern "C" { |
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//void __rt_fp_status_register_cleanup(TAny * aReg) |
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// { |
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// delete aReg; |
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// } |
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// set up the fp status register |
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EXPORT_C void _fp_init(void) |
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{ |
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TUint32 * aReg = (TUint32 *)User::AllocZ(sizeof(TUint32)); |
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if (aReg) |
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{ |
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Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/); |
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} |
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else |
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{ |
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// This will force us to try again if we actually get an FP |
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// exception later. |
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Dll::SetTls(0 /*, __rt_fp_status_register_cleanup*/); |
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} |
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} |
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EXPORT_C TAny * __rt_fp_status_addr(void) |
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{ |
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//return &__fp_status_register; |
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TAny* aTls = Dll::Tls(); |
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if (aTls) |
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return aTls; |
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// we obviously failed to set it up before. Try again, so we can |
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// at least try to error meaningfully |
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TUint32* aReg = (TUint32*)User::AllocZ(sizeof(TUint32)); |
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_LIT(KFpGeneralPanic, "FP Emulator"); |
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if (aReg) |
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{ |
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TInt r = Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/); |
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if (r==KErrNone) |
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return aReg; |
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// if we get here we really in trouble. Just Panic. |
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User::Panic(KFpGeneralPanic, KErrGeneral); |
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} |
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else |
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{ |
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// If we get here, we're toast anyway.... |
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User::Panic(KFpGeneralPanic, KErrNoMemory); |
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} |
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return 0; |
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} |
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} |
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