e32tools/elf2e32/source/filedump.cpp
author mikek
Fri, 02 Jul 2010 11:11:13 +0100
changeset 22 f76056b903a8
parent 20 f2446ffbf2b5
child 23 0a67eddbe320
permissions -rwxr-xr-x
1) A better fix for Bug 2979 - [GCCE] elf2e32 --dump generates RVCT assembly. 2) A fix for Bug 3117 - [GCCE] Missing symbols in linkage of template_ekern.exe. Same fix for both bugs, though they are no duplicates.
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// Copyright (c) 2007-2009 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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// Mike Kinghan, mikek@symbian.org, for Symbian Foundation, 2010 
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//
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// Description:
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// FileDump Operations of elf2e32 tool to dump E32Image and generate ASM File.
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// @internalComponent
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// @released
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// 
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//
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#include "pl_common.h"
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#include "filedump.h"
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#include "e32imagefile.h"
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#include "h_utl.h"
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#include "deffile.h"
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#include "errorhandler.h"
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#include <cstdio>
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#include <cassert>
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/**
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Constructor for class FileDump
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@param aParameterListInterface - Instance of class ParameterListInterface
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@internalComponent
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@released
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*/
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FileDump::FileDump(ParameterListInterface* aParameterListInterface) : UseCaseBase(aParameterListInterface)
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{
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}
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/**
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Destructor for class FileDump
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@internalComponent
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@released
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*/
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FileDump::~FileDump()
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{
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}
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/**
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Execute Function for the File Dump. It dumps E32 image or generate ASM file based on the
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file dump options
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@return 0 on success, otherwise throw error 
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@internalComponent
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@released
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*/
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int FileDump::Execute()
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{
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	if(iParameterListInterface->FileDumpOption() && iParameterListInterface->E32OutOption() && iParameterListInterface->DefFileInOption()) //DumpAsm
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	{
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		if(!(iParameterListInterface->DumpOptions() & EDumpAsm))
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			throw InvalidArgumentError(INVALIDARGUMENTERROR,(!iParameterListInterface->FileDumpSubOptions()?"":iParameterListInterface->FileDumpSubOptions()) ,"--dump");
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		if(iParameterListInterface->DumpOptions() & 31)
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			throw InvalidArgumentError(INVALIDARGUMENTERROR,(!iParameterListInterface->FileDumpSubOptions()?"":iParameterListInterface->FileDumpSubOptions()),"--dump");
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		if(!iParameterListInterface->E32ImageOutput())
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			throw ParameterParserError(NOREQUIREDOPTIONERROR,"--output");
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		if(!iParameterListInterface->DefInput())
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			throw ParameterParserError(NOREQUIREDOPTIONERROR,"--definput");
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		GenerateAsmFile();
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	}
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	else
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	{
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		if(!iParameterListInterface->E32Input())
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			throw ParameterParserError(NOREQUIREDOPTIONERROR,"--e32input");
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		if(iParameterListInterface->DumpOptions() & EDumpAsm )
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			throw InvalidArgumentError(INVALIDARGUMENTERROR,iParameterListInterface->FileDumpSubOptions() ,"--dump");
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		DumpE32Image();
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	}
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	return 0;
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}
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/**
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Function to generate ASM File.
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@param afileName - ASM File name
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@return 0 on success, otherwise throw error 
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@internalComponent
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@released
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*/
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int FileDump::GenerateAsmFile() //DumpAsm
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{
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	EAsmDialect asmDialect = iParameterListInterface->AsmDialect();
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	switch(asmDialect)
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	{
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	case EGas:
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		return GenerateGasAsmFile();
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	case EArmas:
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		return GenerateArmasAsmFile();
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	default:
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		assert(false);
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	}
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	return 0;
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}
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/**
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Function to generate an RVCT armas ASM File.
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@param afileName - ASM File name
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@return 0 on success, otherwise throw error 
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@internalComponent
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@released
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*/
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int FileDump::GenerateArmasAsmFile()
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{
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	DefFile *iDefFile = new DefFile();
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	SymbolList *aSymList;
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	aSymList = iDefFile->ReadDefFile(iParameterListInterface->DefInput());
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	char const *afileName = iParameterListInterface->E32ImageOutput(); 
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	FILE *fptr;
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	if((fptr=fopen(afileName,"w"))==NULL)
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	{
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		throw FileError(FILEOPENERROR,(char*)afileName);
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	}
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	else
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	{
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		SymbolList::iterator aItr = aSymList->begin();
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		SymbolList::iterator last = aSymList->end();
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		Symbol *aSym;
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		while( aItr != last)
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		{
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			aSym = *aItr;
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			if(aSym->Absent())
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			{
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				aItr++;
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				continue;
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			}
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			fputs("\tIMPORT ",fptr);
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			fputs(aSym->SymbolName(),fptr);
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			//Set the visibility of the symbols as default."DYNAMIC" option is
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			//added to remove STV_HIDDEN visibility warnings generated by every 
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			//export during kernel build 
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			fputs(" [DYNAMIC]", fptr);
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			fputs("\n",fptr);
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			aItr++;
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		}
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        // Create a directive section that instructs the linker to make all listed
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        // symbols visible.
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        fputs("\n AREA |.directive|, READONLY, NOALLOC\n\n",fptr);
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        fputs("\tDCB \"#<SYMEDIT>#\\n\"\n", fptr);
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		aItr = aSymList->begin();
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		while (aItr != last)
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		{
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			aSym = *aItr;
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			if ( aSym->Absent() )
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			{
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				aItr++;
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				continue;
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			}
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            // Example:
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            //  DCB "EXPORT __ARM_ll_mlass\n"
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			fputs("\tDCB \"EXPORT ",fptr);
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			fputs(aSym->SymbolName(),fptr);
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			fputs("\\n\"\n", fptr);
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			aItr++;
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		}
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		fputs("\n END\n",fptr);
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		fclose(fptr);
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	}
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	return 0;
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}
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/**
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Function to generate a GNU as ASM File.
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@param afileName - ASM File name
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@return 0 on success, otherwise throw error 
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@internalComponent
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@released
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*/
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int FileDump::GenerateGasAsmFile()
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{
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	DefFile *iDefFile = new DefFile();
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	SymbolList *aSymList;
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	aSymList = iDefFile->ReadDefFile(iParameterListInterface->DefInput());
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	char const *afileName = iParameterListInterface->E32ImageOutput(); 
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	FILE *fptr;
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	if((fptr=fopen(afileName,"w"))==NULL)
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	{
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		throw FileError(FILEOPENERROR,(char*)afileName);
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	}
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	else
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	{
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		SymbolList::iterator aItr = aSymList->begin();
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		SymbolList::iterator last = aSymList->end();
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		Symbol *aSym;
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		while( aItr != last)
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		{
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			aSym = *aItr;
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			if(aSym->Absent())
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			{
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				aItr++;
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				continue;
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			}
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			fputs("\t.common ",fptr);
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			fputs(aSym->SymbolName(),fptr);
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			fputs(" 4\n",fptr);
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			aItr++;
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		}
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		fclose(fptr);
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	}
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	return 0;
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}
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/**
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Function to Dump E32 Image.
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@param afileName - E32 Image File name
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@return 1 on success, otherwise throw error 
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@internalComponent
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@released
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*/
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int FileDump::DumpE32Image()
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{
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	char const *afileName = iParameterListInterface->E32Input(); 
2
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	E32ImageFile *aE32Imagefile=new E32ImageFile();
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	TInt result = aE32Imagefile->Open(afileName);
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	if (result > 0)
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		return 1;
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	else if (result == KErrCorrupt || result == KErrNotSupported)
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	{
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		throw InvalidE32ImageError(INVALIDE32IMAGEERROR, (char *)afileName);
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	}
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	else if (result != 0)
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	{
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		throw FileError(FILEREADERROR, (char *)afileName);
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	}
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	int dumpOptions=iParameterListInterface->DumpOptions();
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	aE32Imagefile->Dump((TText*)afileName, dumpOptions);
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	delete aE32Imagefile;
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	return KErrNone;
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}
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