// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Class for E32 Image implementation and dump of the elf2e32 tool

// @internalComponent

// @released

// 

//

#ifndef E32IMAGEFILE_H

#define E32IMAGEFILE_H

#include "pl_elfrelocation.h"

#include "pl_elfrelocations.h"

#include "e32imagedefs.h"

#include "elfdefs.h"

#include <fstream>

#include <vector>

using std::vector;

#include <iostream>

using std::ifstream;

#include <e32std.h>

enum TFileSource

	{

	EE32Image=0,

	EPeFile=1,

	EElfFile=2,

	};

class ELFExecutable;

class ElfFileSupplied;

/**

Class E32ImageChunkDesc for different sections in the E32 image.

@internalComponent

@released

*/

class E32ImageChunkDesc

{

public:

	E32ImageChunkDesc(char * aData, size_t aSize, size_t aOffset, char * aDoc);

	virtual ~E32ImageChunkDesc();

	virtual void Write(char * aPlace);

public:

	char * iData;

	size_t iSize;

	size_t iOffset;

	char * iDoc;

};

/**

Class E32ImageChunks for a list of sections in the E32 image.

@internalComponent

@released

*/

class E32ImageChunks

{

public:

	typedef vector<E32ImageChunkDesc *> ChunkList;

public:

	E32ImageChunks();

	virtual ~E32ImageChunks();

	void AddChunk(char * aData, size_t aSize, size_t aOffset, char * aDoc);

	size_t GetOffset();

	void SetOffset(size_t aOffset);

	ChunkList & GetChunks();

public:

	ChunkList iChunks;

	size_t iOffset;

};

class ElfFileSupplied;

/**

Class E32ImageFile for fields of an E32 image.

@internalComponent

@released

*/

class E32ImageFile 

{

public:

	typedef unsigned char uint8;

	typedef unsigned short uint16;

	typedef unsigned long uint32;

	struct E32RelocPageDesc

	{

		uint32 aOffset;

		uint32 aSize;

	};

//public:

	E32ImageFile(const char * aFileName, ElfExecutable * aExecutable, ElfFileSupplied * aUseCase);

	virtual ~E32ImageFile();

	void GenerateE32Image();

	void ReadInputELFFile(const char * aName, size_t & aFileSize, Elf32_Ehdr * & aELFFile );

	void ProcessImports();

	const char * FindDSO(const char * aName);

	void ProcessRelocations();

	void ProcessCodeRelocations();

	void ProcessDataRelocations();

	void CreateRelocations(ElfRelocations::RelocationList & aRelocList, char * & aRelocs, size_t & aRelocSize);

	size_t RelocationsSize(ElfRelocations::RelocationList & aRelocList);

	uint16 GetE32RelocType(ElfRelocation * aReloc);

	void ConstructImage();

	virtual void InitE32ImageHeader();

	virtual size_t GetE32ImageHeaderSize();

	virtual size_t GetExtendedE32ImageHeaderSize();

	virtual void SetExtendedE32ImageHeaderSize(size_t aSize);

	virtual void ComputeE32ImageLayout();

	virtual size_t GetE32ImageSize();

	virtual size_t GetExportOffset();

	virtual void CreateExportBitMap();

	virtual void AddExportDescription();

	virtual void AllocateE32Image();

	virtual void FinalizeE32Image();

	virtual uint16 GetCpuIdentifier();

	virtual uint32 EntryPointOffset();

	enum EEntryPointStatus

	{

		EEntryPointOK,

		EEntryPointCorrupt,

		EEntryPointNotSupported

	};

	EEntryPointStatus ValidateEntryPoint();

	virtual void SetUpExceptions();

	virtual void SetUids();

	virtual void SetSecureId();

	virtual void SetVendorId();

	virtual void SetCallEntryPoints();

	virtual void SetCapability();

	virtual void SetPriority(bool isDllp);

	virtual void SetFixedAddress(bool isDllp);

	virtual void SetVersion();

	virtual void SetCompressionType();

	virtual void SetFPU();

	virtual void SetPaged();

	virtual void SetSymbolLookup();

	virtual void SetDebuggable();

	virtual void SetSmpSafe();

	void UpdateHeaderCrc();

	bool WriteImage(const char * aName);

public:

	const char * iFileName;

	char * iE32Image;

	uint8 * iExportBitMap;

	ElfExecutable * iElfExecutable;

	std::vector<char*> cleanupStack;

	char* iData;

	ElfFileSupplied * iUseCase;

	E32ImageHeaderV * iHdr;

	size_t iHdrSize;

	E32ImageChunks iChunks;

	uint32 iNumDlls;

	uint32 iNumImports;

	uint32 * iImportSection;

	size_t iImportSectionSize;

	char * iCodeRelocs;

	size_t iCodeRelocsSize;

	char * iDataRelocs;

	size_t iDataRelocsSize;

	size_t iExportOffset;

	bool iLayoutDone;

	int iMissingExports;

	// This table carries the byte offsets in the import table entries corresponding 

	// to the 0th ordinal entry of static dependencies.

	std::vector<int>	iImportTabLocations;

	std::vector<uint32>	iSymAddrTab;

	std::vector<uint32>	iSymNameOffTab;

	std::string			iSymbolNames;

	uint32				iSymNameOffset;

public:

	E32ImageFile();

	TInt ReadHeader(ifstream& is);

	TInt Open(const char* aFileName);

	void Adjust(TInt aSize, TBool aAllowShrink=ETrue);

	TUint TextOffset();

	TUint DataOffset();

	TUint BssOffset();

	TUint32 Capability();

	TUint32 Format();

	void Dump(TText *aFileName,TInt aDumpFlags);

	void DumpHeader(TInt aDumpFlags);

	void DumpData(TInt aDumpFlags);

	void DumpSymbolInfo(E32EpocExpSymInfoHdr *aSymInfoHdr);

	void E32ImageExportBitMap();

	TInt CheckExportDescription();

	void ProcessSymbolInfo();

	char* CreateSymbolInfo(size_t aBaseOffset);

	void SetSymInfo(E32EpocExpSymInfoHdr& aSymInfo);

public:

	inline TUint OrigCodeOffset() const {return OffsetUnadjust(iOrigHdr->iCodeOffset);}

	inline TUint OrigDataOffset() const {return OffsetUnadjust(iOrigHdr->iDataOffset);}

	inline TUint OrigCodeRelocOffset() const {return OffsetUnadjust(iOrigHdr->iCodeRelocOffset);}

	inline TUint OrigDataRelocOffset() const {return OffsetUnadjust(iOrigHdr->iDataRelocOffset);}

	inline TUint OrigImportOffset() const {return OffsetUnadjust(iOrigHdr->iImportOffset);}

	inline TUint OrigExportDirOffset() const {return OffsetUnadjust(iOrigHdr->iExportDirOffset);}

	inline TUint OffsetUnadjust(TUint a) const {return a ? a-iOrigHdrOffsetAdj : 0;}

	inline void OffsetAdjust(TUint& a) { if (a) a+=iOrigHdrOffsetAdj; }

public:

	TInt iSize;

	E32ImageHeader* iOrigHdr;

	TInt iError;

	TFileSource iSource;

	TUint iOrigHdrOffsetAdj;

	TInt iFileSize;

};

ifstream &operator>>(ifstream &is, E32ImageFile &aImage);

void InflateUnCompress(unsigned char* source, int sourcesize, unsigned char* dest, int destsize);

#endif // E32IMAGEFILE_H