kernel/eka/compsupp/rvct3_1/sftfpini.cpp
changeset 266 0008ccd16016
parent 259 57b9594f5772
child 272 70a6efdb753f
child 281 13fbfa31d2ba
equal deleted inserted replaced
259:57b9594f5772 266:0008ccd16016
     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