author | Richard Taylor <richard.i.taylor@nokia.com> |
Mon, 29 Mar 2010 14:56:03 +0100 | |
branch | fix |
changeset 417 | ea9157619e03 |
parent 0 | 044383f39525 |
permissions | -rw-r--r-- |
0
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// Copyright (c) 2004-2009 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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// |
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// Description: |
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// Implementation of the Class ElfExports for the elf2e32 tool |
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// @internalComponent |
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// @released |
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// |
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// |
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|
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#include "pl_elfexports.h" |
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#include "pl_elfexecutable.h" |
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#include "pl_dllsymbol.h" |
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|
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using std::set_difference; |
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|
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/** |
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Constructor for class ElfExports |
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@internalComponent |
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@released |
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*/ |
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ElfExports::ElfExports() : iDllName(NULL), iSorted(false), iExportsFilteredP(false){ |
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} |
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|
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/** |
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Destructor for class ElfExports |
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@internalComponent |
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@released |
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*/ |
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ElfExports::~ElfExports() |
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{ |
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if(iExportList.size()) |
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{ |
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ExportList::iterator aItr = iExportList.begin(); |
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ExportList::iterator last = iExportList.end(); |
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DllSymbol *temp; |
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|
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while( aItr != last) |
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{ |
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temp = *aItr; |
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aItr++; |
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delete temp; |
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} |
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} |
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iExportList.clear(); |
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} |
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/** |
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This function validates exported symbols. The typeinfo name strings |
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are not valid export symbols and are discarded. |
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@param aExecutable - Instance of class ElfExecutable |
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@param aSym - DllSymbol |
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@return True if symbol is valid, otherwise false |
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@internalComponent |
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@released |
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*/ |
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bool ElfExports::ValidExportP(ElfExecutable * aExecutable, DllSymbol * aSym) |
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{ |
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char * aSymName = aExecutable->GetSymbolName(aSym->iSymbolIndex); |
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int result = strncmp(aSymName, "_ZTS", strlen("_ZTS")); |
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return ( result != 0); |
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} |
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|
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/** |
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This function adds export symbols into exports list. |
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@param aDll - Dll name |
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@param aExecutable - Instance of class ElfExecutable |
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@param aSym - Dll symbol |
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@return Dll Symbol if its valid, otherwise NULL |
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@internalComponent |
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@released |
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*/ |
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DllSymbol* ElfExports::Add(char *aDll, ElfExecutable * aExecutable, DllSymbol *aSym) |
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{ |
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if (ValidExportP(aExecutable, aSym)) |
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{ |
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if( !iDllName ) |
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iDllName = aDll; |
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iExportList.push_back(aSym); |
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iSorted = false; |
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return aSym; |
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} |
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return NULL; |
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} |
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/** |
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Function to add elf exports |
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@param aDll - Dll name |
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@param aSym - Dll symbol |
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@internalComponent |
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@released |
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*/ |
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void ElfExports::Add(char *aDll, DllSymbol *aSym) |
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{ |
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if( !iDllName ) |
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iDllName = aDll; |
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iExportList.push_back(aSym); |
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iSorted = false; |
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} |
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|
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/** |
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Function to sort elf exports. Sorting may be done based on the symbol |
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name or on the ordinal number depending on the usecase. |
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@internalComponent |
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@released |
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*/ |
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void ElfExports::Sort() |
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{ |
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if (!iSorted) { |
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if(iExportsFilteredP) { |
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std::sort(iFilteredExports.begin(), iFilteredExports.end(), PtrELFExportNameCompare()); |
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} |
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else { |
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std::sort(iExportList.begin(), iExportList.end(), PtrELFExportNameCompare()); |
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} |
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iSorted = true; |
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} |
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} |
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|
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/** |
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Function to get exports list. |
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133 |
@param aSorted - sort before returning the exports. |
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@return export list |
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@internalComponent |
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@released |
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*/ |
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ElfExports::ExportList & ElfExports::GetExports(bool aSorted) |
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{ |
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if (aSorted) Sort(); |
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141 |
|
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if(iExportsFilteredP) |
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return iFilteredExports; |
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else |
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return iExportList; |
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146 |
} |
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147 |
|
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148 |
/** |
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149 |
Function to get exports in ordinal order |
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@return export list |
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151 |
@internalComponent |
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@released |
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*/ |
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154 |
ElfExports::ExportList & ElfExports::GetExportsInOrdinalOrder() |
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155 |
{ |
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if (iExportsFilteredP) |
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{ |
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std::sort(iFilteredExports.begin(), iFilteredExports.end(), PtrELFExportOrdinalCompare()); |
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return iFilteredExports; |
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160 |
} |
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161 |
else |
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162 |
{ |
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std::sort(iExportList.begin(), iExportList.end(), PtrELFExportOrdinalCompare()); |
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return iExportList; |
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} |
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166 |
} |
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167 |
|
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168 |
/** |
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169 |
Function to process the filtered exports |
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@internalComponent |
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@released |
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172 |
*/ |
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void ElfExports::FilterExports() |
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{ |
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std::sort(iExportList.begin(), iExportList.end(), PtrELFExportNameCompare()); |
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std::sort(iFilteredExports.begin(), iFilteredExports.end(), PtrELFExportNameCompare()); |
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177 |
|
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ExportList aNewList(iExportList.size()); |
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ExportList::iterator aNewListBegin = aNewList.begin(); |
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180 |
|
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ExportList::iterator aNewListEnd = set_difference(iExportList.begin(), iExportList.end(), \ |
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iFilteredExports.begin(), iFilteredExports.end(), aNewListBegin, PtrELFExportNameCompare()); |
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183 |
|
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184 |
iFilteredExports.clear(); |
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while (aNewListBegin != aNewListEnd) |
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186 |
{ |
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iFilteredExports.push_back(*aNewListBegin); |
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188 |
aNewListBegin++; |
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189 |
} |
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190 |
} |
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191 |
|
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192 |
/** |
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193 |
Function to get number of exports |
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194 |
@return size of export list |
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195 |
@internalComponent |
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196 |
@released |
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197 |
*/ |
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198 |
size_t ElfExports::GetNumExports() |
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199 |
{ |
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200 |
return iExportList.size(); |
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201 |
} |
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|
202 |
|
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203 |
/** |
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204 |
Function to get Dll name |
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|
205 |
@return Dll name |
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206 |
@internalComponent |
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207 |
@released |
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208 |
*/ |
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209 |
char* ElfExports::DllName() |
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210 |
{ |
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211 |
return iDllName; |
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212 |
} |
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|
213 |
|
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214 |
/** |
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215 |
Overloaded operator to compare ELF export names. |
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216 |
@return True if lhs symbol name < rhs symbol name, otherwise false |
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217 |
@internalComponent |
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218 |
@released |
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219 |
*/ |
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220 |
bool ElfExports::PtrELFExportNameCompare::operator()(const Symbol * lhs, const Symbol * rhs) const |
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221 |
{ |
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222 |
return strcmp( lhs->SymbolName(), rhs->SymbolName()) < 0; |
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223 |
} |
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|
224 |
|
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225 |
/** |
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226 |
Overloaded operator to compare ordinal numbers of symbols. |
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227 |
@return True if lhs symbol name < rhs symbol name, otherwise false |
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228 |
@internalComponent |
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229 |
@released |
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230 |
*/ |
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231 |
bool ElfExports::PtrELFExportOrdinalCompare::operator()(const Symbol * lhs, const Symbol * rhs) const |
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232 |
{ |
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233 |
return lhs->OrdNum() < rhs->OrdNum(); |
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234 |
} |
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|
235 |
|
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|
236 |
/** |
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237 |
Overloaded operator to compare update symbol attributes that are |
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238 |
being compared. The comparision is done on the symbol names. |
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239 |
@return True if lhs symbol name < rhs symbol name, otherwise false |
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240 |
@internalComponent |
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241 |
@released |
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242 |
*/ |
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243 |
bool ElfExports::PtrELFExportNameCompareUpdateAttributes::operator()(const Symbol * lhs, const Symbol * rhs) const |
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244 |
{ |
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245 |
int result = strcmp(lhs->SymbolName(), rhs->SymbolName()); |
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246 |
if (!result) |
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247 |
{ |
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248 |
if (lhs->OrdNum() > 0) |
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249 |
((Symbol*)rhs)->SetOrdinal( lhs->OrdNum()); |
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250 |
else if (rhs->OrdNum() > 0) |
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251 |
((Symbol*)lhs)->SetOrdinal( rhs->OrdNum()); |
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252 |
|
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253 |
if( ((Symbol*)lhs)->Absent() ) |
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254 |
((Symbol*)rhs)->SetAbsent(true); |
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255 |
else if ( ((Symbol*)rhs)->Absent() ) |
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256 |
((Symbol*)lhs)->SetAbsent(true); |
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257 |
|
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258 |
if( ((Symbol*)lhs)->SymbolSize() ) |
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259 |
((Symbol*)rhs)->SetSymbolSize(((Symbol*)lhs)->SymbolSize()); |
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260 |
else if( ((Symbol*)rhs)->SymbolSize() ) |
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261 |
((Symbol*)lhs)->SetSymbolSize(((Symbol*)rhs)->SymbolSize()); |
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262 |
} |
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|
263 |
return result < 0; |
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|
264 |
} |
044383f39525
Convert Build package from SFL to EPL
Alex Gilkes <alex.gilkes@nokia.com>
parents:
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