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1 /* |
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2 * Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32std.h> |
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20 #include <e32std_private.h> |
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21 |
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22 // support functions for ARM supplied softvfp compiler-helper functions |
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23 |
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24 extern "C" { |
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25 |
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26 //void __rt_fp_status_register_cleanup(TAny * aReg) |
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27 // { |
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28 // delete aReg; |
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29 // } |
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30 |
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31 // set up the fp status register |
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32 EXPORT_C void _fp_init(void) |
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33 { |
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34 TUint32 * aReg = (TUint32 *)User::AllocZ(sizeof(TUint32)); |
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35 if (aReg) |
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36 { |
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37 Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/); |
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38 } |
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39 else |
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40 { |
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41 // This will force us to try again if we actually get an FP |
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42 // exception later. |
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43 Dll::SetTls(0 /*, __rt_fp_status_register_cleanup*/); |
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44 } |
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45 } |
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46 |
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47 EXPORT_C TAny * __rt_fp_status_addr(void) |
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48 { |
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49 //return &__fp_status_register; |
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50 TAny* aTls = Dll::Tls(); |
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51 if (aTls) |
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52 return aTls; |
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53 // we obviously failed to set it up before. Try again, so we can |
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54 // at least try to error meaningfully |
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55 TUint32* aReg = (TUint32*)User::AllocZ(sizeof(TUint32)); |
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56 _LIT(KFpGeneralPanic, "FP Emulator"); |
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57 if (aReg) |
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58 { |
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59 TInt r = Dll::SetTls(aReg /*, __rt_fp_status_register_cleanup*/); |
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60 if (r==KErrNone) |
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61 return aReg; |
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62 // if we get here we really in trouble. Just Panic. |
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63 User::Panic(KFpGeneralPanic, KErrGeneral); |
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64 } |
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65 else |
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66 { |
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67 // If we get here, we're toast anyway.... |
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68 User::Panic(KFpGeneralPanic, KErrNoMemory); |
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69 } |
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70 return 0; |
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71 } |
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72 } |
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73 |