// Copyright (c) 2004-2009 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 "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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//+
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+
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#include "e32exporttable.h"+
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#include "pl_elfexecutable.h"+
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#include "pl_elfexports.h"+
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#include "pl_dllsymbol.h"+
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#include "pl_elflocalrelocation.h"+
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+
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/**+
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Destructor for E32ExportTable class.+
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@internalComponent+
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@released+
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*/+
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E32ExportTable::~E32ExportTable()+
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{+
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	delete [] iTable;+
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}+
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+
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/**+
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This function updates the e32 export table.+
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@param aElfExecutable - Elf executable+
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@param aExportList - export symbol list+
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@internalComponent+
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@released+
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*/+
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void E32ExportTable::CreateExportTable(ElfExecutable * aElfExecutable, ElfExports::ExportList & aExportList)+
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{+
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	iElfExecutable = aElfExecutable;+
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	// ELFExports::ExportList aExportList = aElfExecutable->GetExportsInOrdinalOrder();+
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	// The export table has a header containing the number of entries+
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	// before the entries themselves. So add 1 to number of exports+
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	iNumExports = aExportList.size();+
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	size_t aSize = iNumExports + 1;+
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	iSize = aSize * sizeof(MemAddr);+
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	iTable = new unsigned int[aSize];+
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	// Set up header+
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	iTable[0] = aExportList.size();+
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	Elf32_Phdr * aROHdr = aElfExecutable->iCodeSegmentHdr;+
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	// The export table starts after the header. NB this is a virtual address in the RO+
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	// segment of the E32Image. It is outside the ELF RO segment.+
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	Elf32_Addr * aPlace =  ELF_ENTRY_PTR(Elf32_Addr, aROHdr->p_vaddr, aROHdr->p_filesz) + 1;+
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	iExportTableAddress = (Elf32_Addr)aPlace;+
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	// Tell the E32Image constructor that it must allocate the export table+
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	// i.e. copy it from iTable.+
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	iAllocateP = true;+
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	bool aDelSym;+
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	ElfExports::ExportList::iterator first = aExportList.begin();+
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	for (PLUINT32 i = 1; i < aSize; i++, first++) +
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	{+
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		Elf32_Sym * sym;+
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+
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		unsigned int ptr;+
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		if ((*first)->Absent())+
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		{+
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			ptr = aElfExecutable->iEntryPoint;+
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			sym = new Elf32_Sym;+
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			memset(sym, 0, sizeof(Elf32_Sym));+
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			sym->st_value = ptr;+
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			aDelSym = true;+
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		}+
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		else+
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		{+
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			ptr = (*first)->iElfSym->st_value;+
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			sym = (*first)->iElfSym;+
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			aDelSym = false;+
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		}+
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		// set up the pointer+
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		iTable[i] = ptr;+
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		ElfLocalRelocation * aRel = new ElfLocalRelocation(iElfExecutable, (Elf32_Addr)aPlace++, 0, i, R_ARM_ABS32, NULL, ESegmentRO, sym, aDelSym);														   +
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		aRel->Add();+
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+
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	}+
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}+
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+
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/**+
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This function returns the number of exports.+
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@internalComponent+
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@released+
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*/+
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size_t E32ExportTable::GetNumExports()+
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{+
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	return iNumExports;+
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}+
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+
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/**+
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This function tells the e32 image allocator if space is required to +
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be allocated for export table.+
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@internalComponent+
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@released+
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*/+
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bool E32ExportTable::AllocateP(){ +
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	return iAllocateP;+
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}+
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+
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/**+
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This function returns the e32 export table size.+
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@internalComponent+
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@released+
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*/+
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size_t E32ExportTable::GetExportTableSize(){ +
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	return iSize;+
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}+
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+
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/**+
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This function returns e32 export table.+
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@internalComponent+
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@released+
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*/+
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unsigned int * E32ExportTable::GetExportTable() {+
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	 return iTable; +
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}+
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+
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