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1 // Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32\memmodel\epoc\direct\x86\xkernel.cpp |
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15 // |
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16 // |
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17 |
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18 #include <x86_mem.h> |
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19 |
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20 /******************************************** |
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21 * Thread |
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22 ********************************************/ |
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23 |
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24 TInt DX86PlatThread::SetupContext(SThreadCreateInfo& anInfo) |
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25 { |
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26 return KErrNone; |
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27 } |
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28 |
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29 DX86PlatProcess::DX86PlatProcess() |
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30 {} |
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31 |
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32 DX86PlatProcess::~DX86PlatProcess() |
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33 { |
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34 __KTRACE_OPT(KMMU,Kern::Printf("DX86PlatProcess destruct")); |
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35 DMemModelProcess::Destruct(); |
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36 } |
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37 |
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38 TBool Exc::IsMagic(TLinAddr /*anAddress*/) |
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39 // |
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40 // Return TRUE if anAddress is a 'magic' exception handling instruction |
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41 // |
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42 { |
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43 return EFalse; |
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44 } |
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45 |
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46 void DThread::IpcExcHandler(TExcTrap* aTrap, DThread* aThread, TAny* aContext) |
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47 { |
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48 aThread->iIpcClient = 0; |
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49 TIpcExcTrap& xt=*(TIpcExcTrap*)aTrap; |
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50 TX86ExcInfo& info=*(TX86ExcInfo*)aContext; |
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51 if (info.iExcId==EX86VectorPageFault) |
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52 { |
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53 TLinAddr va=(TLinAddr)info.iFaultAddress; |
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54 if (va>=xt.iRemoteBase && (va-xt.iRemoteBase)<xt.iSize) |
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55 xt.Exception(KErrBadDescriptor); // problem accessing remote address - 'leave' so an error code will be returned |
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56 if (xt.iLocalBase && va>=xt.iLocalBase && (va-xt.iLocalBase)<xt.iSize) |
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57 NKern::UnlockSystem(); // problem accessing local address - return and panic current thread as usual |
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58 } |
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59 // otherwise return and fault kernel |
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60 } |
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61 |