/*+
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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* All rights reserved.+
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*+
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* This program is free software: you can redistribute it and/or modify+
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* it under the terms of the GNU Lesser General Public License as published by+
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* the Free Software Foundation, either version 3 of the License, or+
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* (at your option) any later version.+
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*+
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* This program is distributed in the hope that it will be useful,+
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* but WITHOUT ANY WARRANTY; without even the implied warranty of+
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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* GNU Lesser General Public License for more details.+
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* +
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* You should have received a copy of the GNU Lesser General Public License+
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* along with this program.  If not, see <http://www.gnu.org/licenses/>.+
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*/+
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+
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#ifndef ELFSYMBOLTABLEMANAGER_H_+
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#define ELFSYMBOLTABLEMANAGER_H_+
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+
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#include <vector>+
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#include <cassert>+
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+
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#include "filefragment.h"+
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#include "elfstringtable.h"+
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#include "outputfile.h"+
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#include "elfheader.h"+
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#include "e32romimage.h"+
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#include "elfsection.h"+
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#include "elfsectionmanager.h"+
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#include "defs.h" // String+
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+
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class ElfSymbolTableManager;+
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+
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class SectionNumberMapping {+
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public:+
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	SectionNumberMapping(size_t aOld, size_t aNew):+
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		iOld(aOld), iNew(aNew)+
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		{}+
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	+
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	SectionNumberMapping & operator=(const SectionNumberMapping & aSectionNumberMapping){+
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		iOld = aSectionNumberMapping.iOld;+
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		iNew = aSectionNumberMapping.iNew;+
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		return *this;+
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	}+
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	+
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	SectionNumberMapping(const SectionNumberMapping & aSectionNumberMapping){+
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		*this = aSectionNumberMapping;+
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	}+
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+
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	size_t iOld;+
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	size_t iNew;+
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};+
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+
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typedef std::vector< SectionNumberMapping > SectionNumberMap;+
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+
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class SectionVaddrAddendMapping {+
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public:+
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	SectionVaddrAddendMapping(size_t aSectionNumber, signed int aAddend):+
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		iSectionNumber(aSectionNumber), iAddend(aAddend)+
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		{}+
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	+
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	SectionVaddrAddendMapping & operator=(const SectionVaddrAddendMapping & aSectionVaddrAddendMapping){+
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		iSectionNumber = aSectionVaddrAddendMapping.iSectionNumber;+
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		iAddend = aSectionVaddrAddendMapping.iAddend;+
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		return *this;+
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	}+
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	+
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	SectionVaddrAddendMapping(const SectionVaddrAddendMapping & SectionVaddrAddendMapping){+
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		*this = SectionVaddrAddendMapping;+
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	}+
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+
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	size_t iSectionNumber;+
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	signed int iAddend;+
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};+
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+
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typedef std::vector< SectionVaddrAddendMapping > SectionVaddrAddendMap;+
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+
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class ElfFileSymbolFragments {+
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public:+
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	ElfFileSymbolFragments(ElfSymbolTableManager * aElfSymbolTableManager):+
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		iPath(""), +
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		iSymbolTableOffset(0), iSymbolTableSize(0),+
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		iFirstGlobal(0),+
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		iStringTableOffset(0), iStringTableSize(0),+
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		iElfSymbolTableManager(aElfSymbolTableManager)+
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		{+
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		iSectionNumberMap.clear();+
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		iSectionVaddrAddendMap.clear();+
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		}+
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	+
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	ElfFileSymbolFragments & operator=(const ElfFileSymbolFragments & aElfFileSymbolFragments){+
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		iPath = aElfFileSymbolFragments.iPath;+
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		iSymbolTableOffset = aElfFileSymbolFragments.iSymbolTableOffset;+
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		iSymbolTableSize = aElfFileSymbolFragments.iSymbolTableSize;+
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		iFirstGlobal = aElfFileSymbolFragments.iFirstGlobal;+
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		iStringTableOffset = aElfFileSymbolFragments.iStringTableOffset;+
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		iStringTableSize = aElfFileSymbolFragments.iStringTableSize;+
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		iSectionNumberMap = aElfFileSymbolFragments.iSectionNumberMap;+
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		iSectionVaddrAddendMap = aElfFileSymbolFragments.iSectionVaddrAddendMap;+
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		iElfSymbolTableManager = aElfFileSymbolFragments.iElfSymbolTableManager;+
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		return *this;+
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	}+
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	+
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	ElfFileSymbolFragments(const ElfFileSymbolFragments & aElfFileSymbolFragments){+
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		*this = aElfFileSymbolFragments;+
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	}+
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	+
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	+
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+
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	void AddSymbolTable(String & aPath, size_t aOffset, size_t aSize, size_t aFirstGlobal);+
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	+
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	void AddStringTable(String & aPath, size_t aOffset, size_t aSize);+
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	String & GetPath() { return iPath; }+
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	size_t GetSymbolTableOffset() { return iSymbolTableOffset; }+
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	size_t GetSymbolTableSize() { return iSymbolTableSize; }+
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	size_t GetFirstGlobal() { return iFirstGlobal; }+
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	size_t GetStringTableOffset() { return iStringTableOffset; }+
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	size_t GetStringTableSize() { return iStringTableSize; }+
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	+
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	void SetSectionNumberMap(SectionNumberMap & aSectionNumberMap){+
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		iSectionNumberMap = aSectionNumberMap;+
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	}+
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	+
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	size_t LookupSection(size_t ndx);+
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	+
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	void SetSectionVaddrAddendMap(SectionVaddrAddendMap & aSectionVaddrAddendMap){+
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		iSectionVaddrAddendMap = aSectionVaddrAddendMap;+
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	}+
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	+
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	int LookupVaddrAddend(size_t ndx);+
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	+
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	void Validate() {+
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		assert(iPath.size() != 0);+
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		assert(iSymbolTableOffset != 0);+
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		assert(iSymbolTableSize != 0);+
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		assert(iStringTableOffset != 0);+
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		assert(iStringTableSize != 0);+
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		assert(!iSectionNumberMap.empty());+
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		assert(!iSectionVaddrAddendMap.empty());+
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	}+
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	+
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	void Reset(){+
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		new (this) ElfFileSymbolFragments(iElfSymbolTableManager);+
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	}+
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	+
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private:+
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	String iPath;+
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	size_t iSymbolTableOffset;+
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	size_t iSymbolTableSize;+
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	size_t iFirstGlobal;+
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	size_t iStringTableOffset;+
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	size_t iStringTableSize;+
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	SectionNumberMap iSectionNumberMap;+
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	SectionVaddrAddendMap iSectionVaddrAddendMap;+
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	ElfSymbolTableManager * iElfSymbolTableManager;+
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	+
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};+
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+
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class ElfSymTabStringTable : public ElfStringTable {+
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public:+
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	ElfSymTabStringTable(ElfSymbolTableManager & aElfSymbolTableManager):+
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		iElfSymbolTableManager(aElfSymbolTableManager)+
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		{}+
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	+
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	virtual size_t Size();+
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	+
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private:+
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	ElfSymbolTableManager & iElfSymbolTableManager;+
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};+
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+
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class ElfSymbolTableManager : public FileFragmentOwner {+
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public:+
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	ElfSymbolTableManager(Elf32Header & aElf32Header, E32RomImage & aRomImage, +
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					      OutputFile & aOutputFile, ElfSectionManager & aElfSectionManager) :+
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		iElf32Header(aElf32Header), iRomImage(aRomImage), +
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		iOutputFile(aOutputFile), iElfSectionManager(aElfSectionManager),+
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		iData(NULL),+
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		iSymbolStringTableSizeValid(false),+
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		iSymbolStringTableSize(0),+
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		iCurrentFragment(this),+
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		iStringTable(*this)+
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		{}+
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	+
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	// The FileFragmentOwner protocol+
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	virtual void GetFileFragmentData(FileFragmentData & aFileFragmentData );+
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	virtual size_t Size();+
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	virtual void DeleteFileFragmentData();+
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	virtual void AddData(OutputFile & aOutputFile);+
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	+
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	void AddSymbolTable(String & aPath, size_t aOffset, size_t aSize, size_t aFirstGlobal){+
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		iCurrentFragment.AddSymbolTable(aPath, aOffset, aSize, aFirstGlobal);+
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	}+
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	void AddStringTable(String & aPath, size_t aOffset, size_t aSize){+
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		iCurrentFragment.AddStringTable(aPath, aOffset, aSize);+
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+
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	}+
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	virtual void AddSymbolFragment(){+
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		iSymbolFragments.push_back(iCurrentFragment);+
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	}+
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	virtual void AddSymbolTable();+
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	+
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	size_t GetSymTabStringsSectionSize();+
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+
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	virtual void Finalize(SectionNumberMap & aSectionNumberMap, SectionVaddrAddendMap & aSectionVaddrAddendMap);+
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	+
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private:+
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	// Don't want one of these to be copied+
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	ElfSymbolTableManager(const ElfSymbolTableManager & aElfSymbolTableManager);+
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	+
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	ElfSymbolTableManager & operator=(const ElfSymbolTableManager & aElfSymbolTableManager);+
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	+
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	size_t GetSymTabSectionSize();+
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	size_t GetFirstNonLocalIndex();+
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+
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private:+
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	typedef std::vector<ElfFileSymbolFragments> SymbolFragmentList;+
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private:+
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	Elf32Header & iElf32Header;+
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	E32RomImage & iRomImage;+
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	OutputFile & iOutputFile;+
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	ElfSectionManager & iElfSectionManager;+
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	+
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	char * iData;+
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	bool iSymbolStringTableSizeValid;+
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	size_t iSymbolStringTableSize;+
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	ElfFileSymbolFragments iCurrentFragment;+
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	SymbolFragmentList iSymbolFragments;+
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	ElfSymTabStringTable iStringTable;+
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};+
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+
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#endif /*ELFSYMBOLTABLEMANAGER_H_*/+
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