e32tools/elf2e32/source/pl_elfproducer.cpp
changeset 0 044383f39525
child 682 2c32f186fa1f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/e32tools/elf2e32/source/pl_elfproducer.cpp	Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,688 @@
+// 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:
+// Implementation of the Class ElfProducer for the elf2e32 tool
+// @internalComponent
+// @released
+// 
+//
+
+#include "pl_elfproducer.h"
+#include "pl_dllsymbol.h"
+#include <stdio.h>
+#include <string>
+#include "errorhandler.h"
+
+/**
+ * Following array is indexed on the SECTION_INDEX enum 
+ */
+char* SECTION_NAME[] = {
+	"",
+	"ER_RO",
+	".dynamic",
+	".hash",
+	".version_d",
+	".version",
+	".strtab",
+	".dynsym",
+	".shstrtab"
+};
+
+
+/**
+Constructor for class ElfProducer
+@param aParameterListInterface - instance of class ParameterListInterface
+@internalComponent
+@released
+*/
+ElfProducer::ElfProducer(ParameterListInterface *aParameterListInterface): ElfExecutable(aParameterListInterface) , \
+	 iDSONameOffset(0),\
+	 iLinkAsOffset(0),\
+	 iSymbolsList(NULL),
+	 iDSODaux(NULL), \
+	 iDSOBuckets(NULL), \
+     iDSOChains(NULL),\
+	 iCodeSectionData(NULL),\
+	 iElfFileOffset(0)
+{
+}
+
+
+
+/**
+Destructor for class ElfProducer to release allocated memory
+@internalComponent
+@released
+*/
+ElfProducer::~ElfProducer(){
+	Cleanup();
+}
+
+
+/**
+This function sets the export Symbol list
+@internalComponent
+@released
+@param aSymbolList The export Symbol list.
+*/
+void ElfProducer::SetSymbolList(SymbolList& aSymbolList){
+	iSymbolsList = &aSymbolList;
+	if (iSymbolsList)
+	{
+		SymbolList::iterator aPos, aEnd;
+		aPos = iSymbolsList->begin();
+		aEnd = iSymbolsList->end();
+		char *aAbsentSymbol = "_._.absent_export_";
+		int length = strlen(aAbsentSymbol);
+		while(aPos != aEnd)
+		{
+			/* If a symbol is marked as Absent in the DEF file, replace the 
+			 * symbol name with "_._.absent_export_<Ordinal Number>"
+			 */
+			if((*aPos)->Absent())
+			{
+				int aOrdinalNo = (*aPos)->OrdNum();
+				// Ordinal Number can be upto 0xffff which is 6 digits
+				char * aSymName = new char[length+7];
+				sprintf(aSymName, "_._.absent_export_%d", aOrdinalNo);
+				(*aPos)->SetSymbolName(aSymName);
+				delete[] aSymName;
+			}
+			aPos++;
+		}
+	}
+	iNSymbols = iSymbolsList->size() + 1;
+}
+
+/**
+This function takes the file names and generates the proxy dso library.
+@internalComponent
+@released
+@param aDsoFullName The full path and proxy-dso file name
+@param aDsoFileName The proxy-dso file name
+@param aLinkAs The DLL that defines the export Symbols
+*/
+void ElfProducer::WriteElfFile(char* aDsoFullName, char* aDsoFileName , char* aLinkAs){
+
+	//This includes the full path followed by the file name
+	iDsoFullName = aDsoFullName;
+
+	iDSOName = aDsoFileName;
+	iLinkAs = aLinkAs;
+
+	InitElfContents();
+
+	WriteElfContents();
+}
+
+/**
+This function initializes the Elf members
+@internalComponent
+@released
+*/
+void ElfProducer::InitElfContents() {
+
+	iElfHeader		= new Elf32_Ehdr;
+	iSections		= new Elf32_Shdr[MAX_SECTIONS+1];
+
+	iElfDynSym		= new Elf32_Sym[iNSymbols];
+	iVersionTbl		= new Elf32_Half[iNSymbols];
+	iVersionDef		= new Elf32_Verdef[2];
+	iDSODaux		= new Elf32_Verdaux[2];
+
+	iProgHeader		 = new Elf32_Phdr[2];
+	iCodeSectionData = new PLUINT32[iNSymbols];	
+
+	iHashTbl = new Elf32_HashTable;
+	
+	//premeditated
+	iHashTbl->nBuckets = (iNSymbols /3) + (iNSymbols % 0x3);
+	
+	iHashTbl->nChains = iNSymbols;
+
+	iDSOBuckets = new Elf32_Sword[iHashTbl->nBuckets];
+	iDSOChains = new Elf32_Sword[iHashTbl->nChains];
+
+	Elf32_Sword	aNullPtr = 0;
+
+	memset(iDSOBuckets, aNullPtr, sizeof(Elf32_Sword)*iHashTbl->nBuckets);
+	memset(iDSOChains,  aNullPtr, sizeof(Elf32_Sword)*iHashTbl->nChains);
+	memset(iCodeSectionData,  0, sizeof(PLUINT32)*iNSymbols);
+
+	CreateElfHeader();
+
+	SymbolList::iterator aItr = iSymbolsList->begin();
+	SymbolList::iterator aEnd = iSymbolsList->end();
+	Symbol		*aSym;
+	PLUINT32	aIdx = 1;
+
+	memset( &iElfDynSym[0], 0, sizeof(Elf32_Sym));
+	iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(), 0);
+
+	while(aItr != aEnd) {
+		String		aSymName("");
+		aSym = *aItr;
+		aSymName = aSym->SymbolName();
+		//set symbol info..
+		iElfDynSym[aIdx].st_name = iDSOSymNameStrTbl.size();
+
+		iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(), aSymName.begin(), aSymName.end() );
+		iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(), 0);
+
+		SetSymolFields( aSym, &iElfDynSym[aIdx], aIdx);
+
+		//set version table info...
+		iVersionTbl[aIdx] = DEFAULT_VERSION;
+		AddToHashTable(aSym->SymbolName(), aIdx);
+		aItr++;aIdx++;
+	}
+
+	CreateVersionTable();
+	
+	//Fill section headers...
+	CreateSections();
+
+	//Copy dyn entries..
+	CreateDynamicEntries();
+
+	//create code section data - this has the ordinal numbers...
+	CreateProgHeader();
+}
+
+/**
+This function creates the version definition table
+@internalComponent
+@released
+*/
+void ElfProducer::CreateVersionTable()
+{
+	//Fill verdef table...
+	iVersionDef[0].vd_ndx = 1;
+	iVersionDef[0].vd_cnt = 1;
+	iVersionDef[0].vd_flags = 1;
+	iVersionDef[0].vd_hash = Util::elf_hash((const PLUCHAR*) iDSOName.c_str());
+	iVersionDef[0].vd_version = 1;
+
+	iVersionDef[0].vd_aux = sizeof(Elf32_Verdef);
+	iVersionDef[0].vd_next = sizeof(Elf32_Verdef) + sizeof(Elf32_Verdaux);
+
+	iDSONameOffset = iDSOSymNameStrTbl.size();
+
+	iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(),iDSOName.begin(), iDSOName.end());
+	iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(), 0);
+	
+	iDSODaux[0].vda_name = iDSONameOffset;
+	iDSODaux[0].vda_next = 0;
+
+	iVersionDef[1].vd_ndx = DEFAULT_VERSION;
+	iVersionDef[1].vd_cnt = 1;
+	iVersionDef[1].vd_flags = 0;
+	iVersionDef[1].vd_hash = Util::elf_hash((const PLUCHAR*)iLinkAs.c_str());
+	iVersionDef[1].vd_version = 1;
+
+	iVersionDef[1].vd_aux = sizeof(Elf32_Verdef);
+	iVersionDef[1].vd_next = 0;
+
+	iLinkAsOffset = iDSOSymNameStrTbl.size();
+	iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(),iLinkAs.begin(), iLinkAs.end());
+	iDSOSymNameStrTbl.insert(iDSOSymNameStrTbl.end(), 0);
+	
+	iDSODaux[1].vda_name = iLinkAsOffset;
+	iDSODaux[1].vda_next = 0;
+
+}
+
+/**
+This function sets the Elf Symbol fields
+@internalComponent
+@released
+@param aSym The Symbol representation
+@param aElfSym The Elf Symbol
+@param aCodeIndex The index at which this Symbol refers to in the code section where, we have the ordinal number
+*/
+void ElfProducer::SetSymolFields(Symbol *aSym, Elf32_Sym* aElfSym, PLUINT32 aCodeIndex) {
+	
+	aElfSym->st_other = STV_DEFAULT;
+	
+	aElfSym->st_info = (PLUCHAR) (ELF32_ST_INFO(STB_GLOBAL, aSym->CodeDataType()));
+	aElfSym->st_value	= (aCodeIndex - 1)*sizeof(Elf32_Word);
+	
+	if(aSym->CodeDataType() == SymbolTypeCode){
+		aElfSym->st_size	= sizeof(Elf32_Word);
+	}else{
+		aElfSym->st_size	= aSym->SymbolSize();
+	}
+	aElfSym->st_shndx = CODE_SECTION;
+}
+
+/**
+This function adds an entry into the hash table based on the symbol name.
+@internalComponent
+@released
+@param aSymName The Symbol name
+@param aIndex The Symbol index in the Symbol table
+*/
+void ElfProducer::AddToHashTable(const char* aSymName, PLUINT32 aIndex) 
+{
+	Elf32_Sword	aNullPtr = 0;
+
+	PLULONG	aHash = Util::elf_hash((PLUCHAR*)aSymName);
+	PLUINT32  aBIdx = aHash % iHashTbl->nBuckets;
+
+	if(iDSOBuckets[aBIdx] == aNullPtr)
+	{
+		iDSOBuckets[aBIdx] = aIndex;
+	}		
+	else
+	{
+		PLUINT32 aCIdx = iDSOBuckets[aBIdx];
+		
+		while(iDSOChains[aCIdx] != aNullPtr){
+
+			/* If the entry is already added into the hash table*/
+			if((PLUINT32)iDSOChains[aCIdx] == aIndex) {
+				return;
+			}
+			aCIdx = iDSOChains[aCIdx];
+		}
+		iDSOChains[aCIdx] = aIndex;
+	}
+}
+
+/**
+This function creates the different sections of the Elf file
+@internalComponent
+@released
+*/
+void ElfProducer::CreateSections() {
+	PLUINT32	aIdx = 0;
+
+	//clear the first section...
+	memset(&iSections[0], 0, sizeof(Elf32_Shdr));
+	iDSOSectionNames.insert(iDSOSectionNames.begin(), 0);
+
+	// Set the ELF file offset.
+	// This indicates the start of sections.
+	iElfFileOffset = sizeof(Elf32_Ehdr);
+
+	iElfFileOffset += (sizeof(Elf32_Shdr) * iElfHeader->e_shnum);
+
+	//Check if the string table is 4-byte aligned..
+	AlignString(iDSOSymNameStrTbl);
+
+	for(aIdx = 1; aIdx <= MAX_SECTIONS; aIdx++) {
+		switch(aIdx)
+		{
+			case SYMBOL_SECTION:
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], SHT_DYNSYM, \
+								   sizeof(Elf32_Sym), (iNSymbols * sizeof(Elf32_Sym)),\
+								   STRING_SECTION, CODE_SECTION, 4, 0, 0);
+				break;
+			case STRING_SECTION:
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], SHT_STRTAB, \
+								   1, iDSOSymNameStrTbl.size(), 0, \
+								   0, 0, 0,0);
+				break;
+			case VERSION_SECTION:
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], 0x6fffffff, \
+								   sizeof(Elf32_Half), (iNSymbols * sizeof(Elf32_Half)), SYMBOL_SECTION, \
+								   0, 2, 0, 0);
+				break;
+			case VER_DEF_SECTION:
+				SetSectionFields(aIdx, SECTION_NAME[aIdx],0x6ffffffd, \
+								   sizeof(Elf32_Verdaux), (2*(sizeof(Elf32_Verdef) + sizeof(Elf32_Verdaux))),\
+								   STRING_SECTION, DYNAMIC_SECTION, 4, 0, 0);
+				break;
+			case HASH_TBL_SECTION:
+				{
+					PLUINT32 aSize = sizeof(Elf32_HashTable) + \
+							(sizeof(Elf32_Sword) * (iHashTbl->nBuckets + iHashTbl->nChains));
+
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], SHT_HASH, \
+								   0, aSize, SYMBOL_SECTION, 0, 4, 0, 0);
+				}
+				break;
+			case DYNAMIC_SECTION:
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], SHT_DYNAMIC, \
+								   sizeof(Elf32_Dyn), ((MAX_DYN_ENTS + 1) *sizeof(Elf32_Dyn)),\
+								   STRING_SECTION, 0, 4, 0,0);
+				break;
+			case CODE_SECTION:
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], SHT_PROGBITS, \
+								   0, (iNSymbols *sizeof(PLUINT32)),\
+								   0, 0, 4, (SHF_ALLOC | SHF_EXECINSTR),0);
+				break;
+			case SH_STR_SECTION:
+				{
+				PLUINT32 aSize = iDSOSectionNames.size() + strlen(SECTION_NAME[aIdx]);
+				SetSectionFields(aIdx, SECTION_NAME[aIdx], SHT_STRTAB, \
+								   1, aSize, 0, \
+								   0, 0, 0, 0);
+				//Check if the string table is 4-byte aligned..
+				AlignString(iDSOSectionNames);
+				iSections[aIdx].sh_size = iDSOSectionNames.size();
+
+				}
+				break;
+			default:
+				break;
+		}
+		iSections[aIdx].sh_offset = iElfFileOffset;
+		iElfFileOffset += iSections[aIdx].sh_size;
+
+		if(iElfFileOffset %4) {
+			iElfFileOffset += (4 - (iElfFileOffset %4));
+		}
+	}
+}
+
+/**
+This function sets the section header fields.
+@internalComponent
+@released
+@return Error status
+@param aSectionIndex The index of the section
+@param aSectionName The name of the section
+@param aType The type of the section
+@param aEntSz The size of each entry of the section
+@param aSectionSize The size of the section
+@param aLink The section this section is linked to
+@param aInfo Extra information. Depends on the section type of this section.
+@param aAddrAlign The address alignment of this section.
+@param aFlags Section flags
+@param aAddr The address of this section in memory(Here it remains 0)
+*/
+void ElfProducer::SetSectionFields(PLUINT32 aSectionIndex, char* aSectionName, PLUINT32 aType, \
+								   PLUINT32 aEntSz, PLUINT32 aSectionSize, PLUINT32 aLink, \
+								   PLUINT32 aInfo, PLUINT32 aAddrAlign, PLUINT32 aFlags, \
+								   PLUINT32 aAddr)
+{
+	String aSecName = aSectionName;
+
+	iSections[aSectionIndex].sh_name			= iDSOSectionNames.size();
+	iDSOSectionNames.insert(iDSOSectionNames.end(), aSecName.begin(), aSecName.end());
+	iDSOSectionNames.insert(iDSOSectionNames.end(), 0);
+	
+	iSections[aSectionIndex].sh_type			= aType;
+	iSections[aSectionIndex].sh_entsize		= aEntSz;
+	iSections[aSectionIndex].sh_size			= aSectionSize;
+	iSections[aSectionIndex].sh_link			= aLink;
+	iSections[aSectionIndex].sh_flags		= aFlags;
+	iSections[aSectionIndex].sh_addralign	= aAddrAlign;
+	iSections[aSectionIndex].sh_info			= aInfo;
+	iSections[aSectionIndex].sh_addr			= aAddr;
+}
+
+/**
+This function cleans up the memory allocated to the Elf fields.
+@internalComponent
+@released
+*/
+void ElfProducer::Cleanup()
+{
+	DELETE_PTR(iElfHeader);
+	DELETE_PTR_ARRAY(iSections);
+	DELETE_PTR_ARRAY(iElfDynSym);
+	DELETE_PTR_ARRAY(iVersionTbl);
+	DELETE_PTR_ARRAY(iVersionDef);
+	DELETE_PTR_ARRAY(iDSODaux);
+
+	DELETE_PTR_ARRAY(iProgHeader);
+	DELETE_PTR_ARRAY(iCodeSectionData);
+	DELETE_PTR_ARRAY(iHashTbl);
+	DELETE_PTR_ARRAY(iDSOBuckets);
+	DELETE_PTR_ARRAY(iDSOChains);
+}
+
+/**
+This function creates the dynamic sections.
+@internalComponent
+@released
+*/
+void ElfProducer::CreateDynamicEntries()
+{
+	for(PLUINT32 aIdx = 0; aIdx <= MAX_DYN_ENTS; aIdx++ ) {
+		switch(aIdx) {
+			case DSO_DT_DSONAME:
+				iDSODynTbl[aIdx].d_tag = DT_SONAME;
+				iDSODynTbl[aIdx].d_val = iDSONameOffset;
+				break;
+			case DSO_DT_SYMTAB:
+				iDSODynTbl[aIdx].d_tag = DT_SYMTAB;
+				iDSODynTbl[aIdx].d_val = iSections[SYMBOL_SECTION].sh_offset;
+				break;
+			case DSO_DT_SYMENT:
+				iDSODynTbl[aIdx].d_tag = DT_SYMENT;
+				iDSODynTbl[aIdx].d_val = iSections[SYMBOL_SECTION].sh_entsize;
+				break;
+			case DSO_DT_STRTAB:
+				iDSODynTbl[aIdx].d_tag = DT_STRTAB;
+				iDSODynTbl[aIdx].d_val = iSections[STRING_SECTION].sh_offset;
+				break;
+			case DSO_DT_STRSZ:
+				iDSODynTbl[aIdx].d_tag = DT_STRSZ;
+				iDSODynTbl[aIdx].d_val = iDSOSymNameStrTbl.size();
+				break;
+			case DSO_DT_VERSYM:
+				iDSODynTbl[aIdx].d_tag = DT_VERSYM;
+				iDSODynTbl[aIdx].d_val = iSections[VERSION_SECTION].sh_offset;
+				break;
+			case DSO_DT_VERDEF:
+				iDSODynTbl[aIdx].d_tag = DT_VERDEF;
+				iDSODynTbl[aIdx].d_val = iSections[VER_DEF_SECTION].sh_offset;
+				break;
+			case DSO_DT_VERDEFNUM:
+				iDSODynTbl[aIdx].d_tag = DT_VERDEFNUM;
+				iDSODynTbl[aIdx].d_val = 2;
+				break;
+			case DSO_DT_HASH:
+				iDSODynTbl[aIdx].d_tag = DT_HASH;
+				iDSODynTbl[aIdx].d_val = iSections[HASH_TBL_SECTION].sh_offset;
+				break;
+			case DSO_DT_NULL:
+				iDSODynTbl[aIdx].d_tag = DT_NULL;
+				iDSODynTbl[aIdx].d_val = 0;
+				break;
+			default:
+				break;
+		}
+	}
+}
+
+/**
+This function creates the Elf header.
+@internalComponent
+@released
+*/
+void ElfProducer::CreateElfHeader()
+{
+	//create ELF header
+	unsigned char c[EI_NIDENT] = {0x7f, 'E', 'L', 'F', \
+				ELFCLASS32, ELFDATA2LSB, 1, 0, \
+				0, 0, 0, 0, \
+				0, 0, 0, 0};       // e_ident
+
+	for (PLUINT32 i=0; i <EI_NIDENT;i++)
+		iElfHeader->e_ident[i] = c[i];
+
+	iElfHeader->e_type		= ET_DYN;
+	iElfHeader->e_machine	= EM_ARM;
+	iElfHeader->e_version	= EV_CURRENT;
+	iElfHeader->e_entry		= 0;
+	iElfHeader->e_shoff		= sizeof(Elf32_Ehdr);
+	iElfHeader->e_flags		= EF_ARM_BPABI_VERSION | EF_ARM_SYMSARESORTED;
+	iElfHeader->e_ehsize	= sizeof(Elf32_Ehdr);
+	iElfHeader->e_phentsize = sizeof(Elf32_Phdr);
+	iElfHeader->e_shentsize = sizeof(Elf32_Shdr);
+	iElfHeader->e_shnum		= MAX_SECTIONS + 1;
+	iElfHeader->e_shstrndx	= SH_STR_SECTION;
+	iElfHeader->e_phnum		= 2;
+}
+
+/**
+This function creates the program header
+@internalComponent
+@released
+*/
+void ElfProducer::CreateProgHeader()
+{
+	//Update the program header offset..
+	iElfHeader->e_phoff		= iElfFileOffset;
+
+	// Update code section data..
+	SymbolList::iterator aItr = iSymbolsList->begin();
+	SymbolList::iterator end  = iSymbolsList->end();
+
+	Symbol *aSym;
+	PLUINT32	aPos = 0;
+	while(aItr != end) {
+		aSym = *aItr;
+
+		iCodeSectionData[aPos] = aSym->OrdNum();
+		aItr++;aPos++;
+	}
+
+	//Create program header
+	iProgHeader[0].p_align	= 4;
+	iProgHeader[0].p_offset = iSections[CODE_SECTION].sh_offset;
+	iProgHeader[0].p_type	= PT_LOAD;
+	iProgHeader[0].p_flags	= (PF_X | PF_ARM_ENTRY);
+	iProgHeader[0].p_filesz = iSections[CODE_SECTION].sh_size;
+	iProgHeader[0].p_paddr	= 0;
+	iProgHeader[0].p_vaddr	= 0;
+	iProgHeader[0].p_memsz  = iSections[CODE_SECTION].sh_size;
+
+	iProgHeader[1].p_align	= 4;
+	iProgHeader[1].p_offset = iSections[DYNAMIC_SECTION].sh_offset;
+	iProgHeader[1].p_type	= PT_DYNAMIC;
+	iProgHeader[1].p_flags	= (PF_R );
+	iProgHeader[1].p_filesz = iSections[DYNAMIC_SECTION].sh_size;
+	iProgHeader[1].p_paddr	= 0;
+	iProgHeader[1].p_vaddr	= 0;
+	iProgHeader[1].p_memsz  = 0;
+
+}
+
+/**
+This function aligns the string table to a 4-byte boundary
+@internalComponent
+@released
+@return Error status
+@param aStr - string to be aligned
+*/
+void ElfProducer::AlignString(String& aStr) {
+
+	if( aStr.size() %4 ){
+		PLUCHAR	aPad = (PLUCHAR)(4 - (aStr.size() %4));
+
+		while(aPad--) {
+			aStr.insert(aStr.end(), 0);
+		}
+	}
+}
+
+/**
+This function writes the Elf file contents.
+@internalComponent
+@released
+*/
+void ElfProducer::WriteElfContents()
+{
+	FILE		*aElfFd;
+	PLUINT32	aIndex;
+	
+	if((aElfFd = fopen(iDsoFullName.c_str(), "wb")) == NULL ) {
+		throw FileError(FILEOPENERROR, (char*)iDsoFullName.c_str());
+	}
+
+	// The ELF header..
+	fwrite(iElfHeader, 1, sizeof(Elf32_Ehdr), aElfFd);
+	
+	//Section headers
+	for(aIndex = 0; aIndex <= MAX_SECTIONS; aIndex++) {
+		fwrite(&iSections[aIndex], 1, sizeof(Elf32_Shdr), aElfFd);
+	}
+
+
+	//Each section..
+
+		//code
+		for(aIndex = 0; aIndex < iNSymbols; aIndex++) {
+			fwrite(&iCodeSectionData[aIndex], 1, sizeof(PLUINT32), aElfFd );
+		}
+		
+		//dyn table
+		for(aIndex = 0; aIndex <= MAX_DYN_ENTS; aIndex++) {
+			fwrite(&iDSODynTbl[aIndex], 1, sizeof(Elf32_Dyn), aElfFd);
+		}
+
+		//hash table
+		fwrite(&iHashTbl->nBuckets, 1, sizeof(Elf32_Word), aElfFd);
+		fwrite(&iHashTbl->nChains, 1, sizeof(Elf32_Word), aElfFd);
+
+		for(aIndex=0; aIndex < iHashTbl->nBuckets; aIndex++) {
+			fwrite(&iDSOBuckets[aIndex], 1, sizeof(Elf32_Sword), aElfFd);
+
+		}
+		for(aIndex=0; aIndex < iHashTbl->nChains; aIndex++) {
+			fwrite(&iDSOChains[aIndex], 1, sizeof(Elf32_Sword), aElfFd);
+			
+		}
+
+		//version def table
+		for(aIndex = 0; aIndex < 2; aIndex++) {
+			fwrite(&iVersionDef[aIndex], 1, sizeof(Elf32_Verdef), aElfFd);
+			fwrite(&iDSODaux[aIndex], 1, sizeof(Elf32_Verdaux), aElfFd);
+		}
+
+		//version table
+		for(aIndex = 0; aIndex < iNSymbols; aIndex++) {
+			fwrite(&iVersionTbl[aIndex], 1, sizeof(Elf32_Half), aElfFd );
+		}
+
+		if( iSections[VERSION_SECTION].sh_size %4 ) {
+			PLUINT32 aNPads = 4 - (iSections[VERSION_SECTION].sh_size %4);
+			PLUCHAR aPad = '\0';
+			while(aNPads--) {
+				fwrite(&aPad, 1, 1, aElfFd);
+			}
+		}
+
+		//string table
+		PLUINT32 aSz = iDSOSymNameStrTbl.size();
+		char *aData = new char[aSz];
+		memcpy(aData, iDSOSymNameStrTbl.data(), aSz);
+		fwrite(aData, 1, aSz, aElfFd);
+
+		DELETE_PTR_ARRAY(aData);
+
+		//Sym table
+		for(aIndex = 0; aIndex < iNSymbols; aIndex ++) {
+			fwrite(&iElfDynSym[aIndex], 1, sizeof(Elf32_Sym), aElfFd);
+		}
+
+		//section header name table
+		aSz = iDSOSectionNames.size();
+		char *aData1 = new char[ aSz];
+		memcpy(aData1, iDSOSectionNames.data(), aSz);
+		fwrite(aData1, 1, aSz, aElfFd);
+		DELETE_PTR_ARRAY(aData1);
+
+	//program header
+	for(aIndex = 0; aIndex < 2; aIndex++) {
+		fwrite(&iProgHeader[aIndex], 1, sizeof(Elf32_Phdr), aElfFd );
+	}
+
+	fclose(aElfFd);
+}
+