--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/e32tools/elf2e32/source/pl_elfconsumer.cpp Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,222 @@
+// 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 ElfConsumer for the elf2e32 tool
+// @internalComponent
+// @released
+//
+//
+
+#include "pl_elfconsumer.h"
+#include "parameterlistinterface.h"
+#include "errorhandler.h"
+#include <iostream>
+#include <string>
+
+using std::list;
+using std::cout;
+using std::endl;
+using std::min;
+
+/**
+Constructor for class ElfConsumer
+@param aParameterListInterface - instance of class ParameterListInterface
+@internalComponent
+@released
+*/
+ElfConsumer::ElfConsumer(ParameterListInterface *aParameterListInterface) :\
+ ElfExecutable(aParameterListInterface) ,\
+ iMemBlock(NULL)
+{
+}
+
+
+/**
+Destructor for class ElfConsumer
+@internalComponent
+@released
+*/
+ElfConsumer::~ElfConsumer(){
+
+ DELETE_PTR_ARRAY(iMemBlock);
+}
+
+
+/**
+This operation takes the member of the ElfFileWriter object that is to be populated with the
+export info in the iExports member (from the iInputElfFile member of ElfConsumer).
+@param aFile - Elf file name
+@internalComponent
+@released
+*/
+PLUINT32 ElfConsumer::ReadElfFile(char* aFile){
+ FILE* aFd;
+
+ if( (aFd = fopen(aFile,"rb")) == NULL) {
+ throw FileError(FILEOPENERROR, aFile);
+ }
+
+ fseek(aFd, 0, SEEK_END);
+
+ PLUINT32 aSz = ftell(aFd);
+ iMemBlock = new char[aSz];
+
+ fseek(aFd, 0, SEEK_SET);
+
+ // Certain Windows devices (e.g., network shares) limit the size of I/O operations to 64MB
+ // or less. We read all the data in individual KMaxWindowsIOSize (32MB) chunks to be safe.
+ PLUINT32 chunkSize = 0;
+ for( PLUINT32 bytesRead = 0; bytesRead < aSz; bytesRead += chunkSize) {
+
+ chunkSize = min(aSz - bytesRead, PLUINT32(KMaxWindowsIOSize));
+
+ if( fread(iMemBlock + bytesRead, chunkSize, 1, aFd) != 1) {
+ throw FileError(FILEREADERROR, aFile);
+ }
+ }
+
+ return 0;
+}
+
+
+/**
+Funtion for getting elf symbol list
+@param aList - list of symbols found in elf files
+@return - 0 for no exports in elf files, otherwise number of symbols found
+@internalComponent
+@released
+*/
+int ElfConsumer::GetElfSymbolList(list<Symbol*>& aList){
+
+ if( !iExports )
+ return 0;
+
+ //Get the exported symbols
+ vector<DllSymbol*> aTmpList = iExports->GetExports(true);
+
+ typedef vector<DllSymbol*> List;
+ List::iterator aItr = aTmpList.begin();
+ while( aItr != aTmpList.end() ){
+ aList.push_back((Symbol*) (*aItr));
+ aItr++;
+ }
+ aTmpList.clear();
+ return aList.size();
+}
+
+/**
+Funtion for getting image details
+@internalComponent
+@released
+*/
+void ElfConsumer::GetImageDetails(/*E32ImageInterface aInterface*/){
+
+}
+
+
+/**
+Funtion for processing elf file
+@internalComponent
+@released
+*/
+PLUINT32 ElfConsumer::ProcessElfFile(){
+
+ Elf32_Ehdr *aElfHdr = ELF_ENTRY_PTR(Elf32_Ehdr, iMemBlock, 0);
+
+ try
+ {
+ ElfExecutable::ProcessElfFile(aElfHdr);
+
+ /* The following is a workaround for the ARM linker problem.
+ * Linker Problem: ARM linker generates Long ARM to Thumb veneers for which
+ * relocation entries are not generated.
+ * The linker problem is resolved in ARM Linker version RVCT 2.2 Build 616.
+ * Hence the workaround is applicable only for executables generated
+ * by ARM linker 2.2 and if build number is below 616.
+ */
+ char * aARMCompiler = "ARM Linker, RVCT";
+ int length = strlen(aARMCompiler);
+ char * aCommentSection = ElfExecutable::FindCommentSection();
+ /* The .comment section in an elf file contains the compiler version information and
+ * it is used to apply the fore mentioned workaround.
+ * Some build tool chains generating elf file output without the .comment section,
+ * just to save the disk space. In this case the variable aCommentSection gets the NULL value.
+ * Solution: This workaround is only applicable for RVCT compiler. So if the .comment section
+ * is not available in the elf file, then this workaround is no need to be applied.
+ */
+ if(aCommentSection != NULL)
+ {
+ if (!strncmp(aCommentSection, aARMCompiler, length))
+ {
+ int WorkAroundBuildNo = 616;
+ int BuildNo = 0;
+ char* RVCTVersion = aCommentSection+length;
+
+ /* RVCTVersion contains the following string
+ * "<MajorVersion>.<MinorVersion> [Build <BuildNumber>]"
+ * Example: "2.2 [Build 616]"
+ */
+ String Version(RVCTVersion);
+ size_t pos = Version.find_last_of(' ');
+ size_t size = Version.size();
+ if (pos < size)
+ {
+ size_t index = pos + 1;
+ if (index < size)
+ {
+ BuildNo = atoi(strtok(RVCTVersion+index, "]"));
+ }
+ }
+
+ /* Workaround is applicable only when the version is 2.2 and if the
+ * build number is below 616.
+ */
+ size_t minorVersionPos = Version.find_first_of('.');
+ char RVCTMinorVersion='0';
+ if (minorVersionPos < size)
+ {
+ size_t index = minorVersionPos + 1;
+ if (index < size)
+ {
+ RVCTMinorVersion = *(RVCTVersion + index);
+ }
+ }
+
+ if ((*RVCTVersion == '2') && (RVCTMinorVersion == '2') &&
+ (BuildNo < WorkAroundBuildNo))
+ {
+ /* The static symbol table should be processed to identify the veneer symbols.
+ * Relocation entries should be generated for these symbols if the linker
+ * is not generating the same.
+ */
+ ElfExecutable::FindStaticSymbolTable();
+ ElfExecutable::ProcessVeneers();
+ }
+ }
+ }
+ }
+ catch(ErrorHandler&)
+ {
+ throw;
+ }
+ /*catch(...) // If there are any other unhandled exception,they are handled here.
+ {
+ //Warning to indicate that there had been an exception at this point.
+ MessageHandler::GetInstance()->ReportWarning(ELFFILEERROR,(char*)iParameterListInterface->ElfInput());
+ throw;
+ } */
+ return 0;
+}
+
+
+