os/kernelhwsrv/kernel/eka/compsupp/rvct3_1/sftfpini.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 // All rights reserved.
     3 // This component and the accompanying materials are made available
     4 // under the terms of the License "ARM EABI LICENCE.txt"
     5 // which accompanies this distribution, and is available
     6 // in kernel/eka/compsupp.
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // This file is part of drtrvct.dll and drtrvct_vfpv2.dll.
    15 // 
    16 //
    17 
    18 #include <e32std.h>
    19 #include <e32std_private.h>
    20 
    21 
    22 extern "C" {
    23   
    24 EXPORT_C  void _fp_init() 
    25     {
    26     }
    27   
    28 EXPORT_C TAny * __rt_fp_status_addr() 
    29     { 
    30     TAny* aTls = Dll::Tls();
    31 
    32     if (aTls)
    33         return aTls;
    34 
    35     // If this is the first time we are called we need to set up some TLS for
    36     // the FP status word.
    37 
    38     TUint32* aReg = (TUint32*)User::AllocZ(sizeof(TUint32));
    39 
    40     _LIT(KFpGeneralPanic, "FP Emulator");
    41 
    42     if (aReg) 
    43         {
    44         TInt r = Dll::SetTls(aReg);
    45         if (r==KErrNone)
    46             return aReg;
    47 
    48         // if we get here we really in trouble. Just Panic.
    49         User::Panic(KFpGeneralPanic, KErrGeneral);
    50         }
    51     else
    52         {
    53         // If we get here, we're toast anyway....
    54         User::Panic(KFpGeneralPanic, KErrNoMemory);
    55         }
    56 
    57     return 0;
    58     }
    59 
    60 }
    61