os/kernelhwsrv/kernel/eka/memmodel/epoc/pprocess.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     1 // Copyright (c) 1995-2009 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 "Eclipse Public License v1.0"
     5 // which accompanies this distribution, and is available
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // e32\memmodel\epoc\pprocess.cpp
    15 // 
    16 //
    17 
    18 #include "plat_priv.h"
    19 #include <kernel/cache.h>
    20 
    21 #ifdef KDLL
    22 GLREF_C void DumpCodeSegCreateInfo(TCodeSegCreateInfo& a);
    23 #endif
    24 
    25 TInt DEpocProcess::AttachExistingCodeSeg(TProcessCreateInfo& aInfo)
    26 	{
    27 	CHECK_PAGING_SAFE;
    28 	__KTRACE_OPT(KDLL,Kern::Printf("DEpocProcess %O AttachExistingCodeSeg",this));
    29 	__KTRACE_OPT(KDLL,DumpCodeSegCreateInfo(aInfo));
    30 	DEpocCodeSeg& s=*(DEpocCodeSeg*)iTempCodeSeg;
    31 	if (s.iAttachProcess && s.iAttachProcess!=this)
    32 		return KErrAlreadyExists;
    33 	TInt r=CreateDataBssStackArea(aInfo);
    34 	if (r==KErrNone)
    35 		{
    36 		TLinAddr dra;
    37 		if (s.iXIP)
    38 			{
    39 			const TRomImageHeader& rih=s.RomInfo();
    40 			aInfo.iExportDir=rih.iExportDir;
    41 			aInfo.iCodeLoadAddress=rih.iCodeAddress;
    42 			aInfo.iCodeRunAddress=rih.iCodeAddress;
    43 			aInfo.iDataLoadAddress=rih.iDataAddress;
    44 			dra=aInfo.iDataRunAddress=rih.iDataBssLinearBase;
    45 			}
    46 		else
    47 			{
    48 			SRamCodeInfo& ri=s.RamInfo();
    49 			aInfo.iExportDir=ri.iExportDir;
    50 			aInfo.iCodeLoadAddress=ri.iCodeLoadAddr;
    51 			aInfo.iCodeRunAddress=ri.iCodeRunAddr;
    52 			aInfo.iDataLoadAddress=ri.iDataLoadAddr;
    53 			dra=aInfo.iDataRunAddress=ri.iDataRunAddr;
    54 			}
    55 		if (aInfo.iTotalDataSize && iDataBssRunAddress!=dra)
    56 			return KErrNotSupported;
    57 		}
    58 	aInfo.iEntryPtVeneer=s.iEntryPtVeneer;
    59 	aInfo.iFileEntryPoint=s.iFileEntryPoint;
    60 	__KTRACE_OPT(KDLL,DumpCodeSegCreateInfo(aInfo));
    61 	__KTRACE_OPT(KDLL,Kern::Printf("DEpocProcess::AttachExistingCodeSeg returns %d",r));
    62 	return r;
    63 	}