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// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\memmodel\epoc\direct\mcodeseg.cpp
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//
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//
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#include <memmodel.h>
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#include <kernel/cache.h>
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DCodeSeg* M::NewCodeSeg(TCodeSegCreateInfo&)
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{
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__KTRACE_OPT(KDLL,Kern::Printf("M::NewCodeSeg"));
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return new DMemModelCodeSeg;
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}
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DEpocCodeSegMemory* DEpocCodeSegMemory::New(DEpocCodeSeg* aCodeSeg)
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{
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return new DMemModelCodeSegMemory(aCodeSeg);
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}
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DMemModelCodeSegMemory::DMemModelCodeSegMemory(DEpocCodeSeg* aCodeSeg)
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: DEpocCodeSegMemory(aCodeSeg)
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{
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}
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DMemModelCodeSeg::DMemModelCodeSeg()
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{
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}
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DMemModelCodeSeg::~DMemModelCodeSeg()
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//
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// Destructor
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//
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{
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__KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::Destruct %C", this));
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if (!iXIP && iMemory)
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{
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SRamCodeInfo& ri=RamInfo();
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if (ri.iCodeLoadAddr)
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{
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TInt code_size=MM::RoundToBlockSize(ri.iCodeSize+ri.iDataSize);
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MM::FreeRegion(ri.iCodeLoadAddr, code_size);
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}
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if (iDataAlloc)
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{
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TInt data_size=MM::RoundToBlockSize(ri.iDataSize+ri.iBssSize);
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MM::FreeRegion(iDataAlloc, data_size);
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}
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}
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Kern::Free(iKernelData);
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DEpocCodeSeg::Destruct();
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}
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TInt DMemModelCodeSeg::DoCreateRam(TCodeSegCreateInfo& aInfo, DProcess* aProcess)
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{
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__KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::DoCreateRam %C proc %O", this, aProcess));
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DMemModelProcess* p=(DMemModelProcess*)aProcess;
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TBool kernel=( (iAttr&(ECodeSegAttKernel|ECodeSegAttGlobal)) == ECodeSegAttKernel );
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SRamCodeInfo& ri=RamInfo();
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iSize = MM::RoundToBlockSize(ri.iCodeSize+ri.iDataSize);
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TInt total_data_size=ri.iDataSize+ri.iBssSize;
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TInt r=MM::AllocRegion(ri.iCodeLoadAddr, iSize);
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if (r!=KErrNone)
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return r;
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ri.iCodeRunAddr=ri.iCodeLoadAddr;
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if (ri.iDataSize)
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ri.iDataLoadAddr=ri.iCodeLoadAddr+ri.iCodeSize;
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if (kernel)
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{
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if (total_data_size)
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{
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iKernelData=Kern::Alloc(total_data_size);
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if (!iKernelData)
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return KErrNoMemory;
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ri.iDataRunAddr=(TLinAddr)iKernelData;
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}
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return KErrNone;
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}
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if (total_data_size && p)
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SetAttachProcess(p);
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if (total_data_size && !IsExe())
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{
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TInt data_alloc_size=MM::RoundToBlockSize(total_data_size);
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TInt r=MM::AllocRegion(iDataAlloc, data_alloc_size);
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if (r!=KErrNone)
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return r;
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ri.iDataRunAddr=iDataAlloc;
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}
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return r;
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}
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TInt DMemModelCodeSeg::DoCreateXIP(DProcess* aProcess)
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{
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__KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::DoCreateXIP %C proc %O", this, aProcess));
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DMemModelProcess* p=(DMemModelProcess*)aProcess;
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TInt r=KErrNone;
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TBool kernel=( (iAttr&(ECodeSegAttKernel|ECodeSegAttGlobal)) == ECodeSegAttKernel );
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const TRomImageHeader& rih=RomInfo();
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if (!kernel && aProcess)
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{
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// XIP images with static data are specific to a single process
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if (rih.iFlags&KRomImageFlagDataPresent)
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SetAttachProcess(p);
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}
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return r;
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}
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TInt DMemModelCodeSeg::Loaded(TCodeSegCreateInfo& aInfo)
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{
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if (!iXIP)
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{
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// Clean DCache for specified area, Invalidate ICache/BTB for specified area
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TLinAddr code_base=RamInfo().iCodeRunAddr;
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Cache::IMB_Range(code_base, RamInfo().iCodeSize);
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}
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return DEpocCodeSeg::Loaded(aInfo);
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}
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void DMemModelCodeSeg::ReadExportDir(TUint32* aDest)
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{
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__KTRACE_OPT(KDLL,Kern::Printf("DMemModelCodeSeg::ReadExportDir %08x",aDest));
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if (!iXIP)
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{
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SRamCodeInfo& ri=RamInfo();
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TInt size=(ri.iExportDirCount+1)*sizeof(TLinAddr);
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kumemput32(aDest, (const TUint32*)(ri.iExportDir-sizeof(TUint32)), size);
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}
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}
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TBool DMemModelCodeSeg::OpenCheck(DProcess* aProcess)
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{
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return FindCheck(aProcess);
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}
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TBool DMemModelCodeSeg::FindCheck(DProcess* aProcess)
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{
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__KTRACE_OPT(KDLL,Kern::Printf("CSEG:%08x Compat? proc=%O",this,aProcess));
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if (!aProcess)
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return !iAttachProcess; // can't reuse same code segment for a new instance of the process
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DMemModelProcess& p=*(DMemModelProcess*)aProcess;
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DCodeSeg* pPSeg=p.CodeSeg();
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if (iAttachProcess && iAttachProcess!=aProcess)
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return EFalse;
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if (iExeCodeSeg && iExeCodeSeg!=pPSeg)
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return EFalse;
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__ASSERT_DEBUG( (iAttachProcess || !(iMark & EMarkDataPresent)), MM::Panic(MM::ECodeSegCheckInconsistent));
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return ETrue;
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}
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