Attempt to address performance problem in the IBinaryParser

To many open()s a new method was create isBinary(byte[] ..)
So the file could be open only one time.

21 files changed, 287 insertions, 99 deletions

diff --git a/core/org.eclipse.cdt.core/ChangeLog b/core/org.eclipse.cdt.core/ChangeLog
index d683c8947ba..4d1e5027d33 100644
--- a/core/org.eclipse.cdt.core/ChangeLog
+++ b/core/org.eclipse.cdt.core/ChangeLog
@@ -1,3 +1,31 @@
+2003-11-18 Alain Magloire
+
+	Attempt to address performance problems from the binary parser
+	on big projects.  The problem is that files are open multiple
+	times to detect if they are binaries or archives.   We can
+	not really rely on the filename or extension.  A new method
+	as been added to the IBinaryParser interface, isBinary()
+	taken an intial byte[].
+
+	* model/org/eclipse/cdt/internal/core/model/Binary.java
+	* model/org/eclipse/cdt/internal/core/model/CModelManager.java
+	* model/org/eclipse/cdt/internal/core/model/NullBinaryParser.java
+	* src/org/eclipse/cdt/core/CCorePlugin.java
+	* src/org/eclipse/cdt/core/IBinaryParser.java
+	* utils/org/eclipse/cdt/utils/coff/PE.java
+	* utils/org/eclipse/cdt/utils/coff/PEArchive.java
+	* utils/org/eclipse/cdt/utils/coff/parser/ARMember.java
+	* utils/org/eclipse/cdt/utils/coff/parser/BinaryArchive.java
+	* utils/org/eclipse/cdt/utils/coff/parser/BinaryObject.java
+	* utils/org/eclipse/cdt/utils/coff/parser/PEParser.java
+	* utils/org/eclipse/cdt/utils/coff/parser/Symbol.java
+	* utils/org/eclipse/cdt/utils/elf/AR.java 
+	* utils/org/eclipse/cdt/utils/elf/parser/ARMember.java
+	* utils/org/eclipse/cdt/utils/elf/parser/BinaryArchive.java
+	* utils/org/eclipse/cdt/utils/elf/parser/BinaryObject.java
+	* utils/org/eclipse/cdt/utils/elf/parser/ElfParser.java
+	* utils/org/eclipse/cdt/utils/elf/parser/Symbol.java
+
 2003-11-17 Doug Schaefer
 	Nothing just testing the commit logs
 
diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Binary.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Binary.java
index 37ecafe5e44..0b99b357bb6 100644
--- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Binary.java
+++ b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Binary.java
@@ -174,19 +174,18 @@ public class Binary extends Openable implements IBinary {
 	}
 
 	private void addFunction(OpenableInfo info, ISymbol symbol, Map hash) {
-		String filename = filename = symbol.getFilename();
+		IPath filename = filename = symbol.getFilename();
 		BinaryFunction function = null;
 
 		// Addr2line returns the funny "??" when it can find the file.
 		if (filename != null && !filename.equals("??")) {
 			BinaryModule module = null;
-			IPath path = new Path(filename);
-			if (hash.containsKey(path)) {
-				module = (BinaryModule)hash.get(path);
+			if (hash.containsKey(filename)) {
+				module = (BinaryModule)hash.get(filename);
 			} else {
 				// A special container we do not want the file to be parse.
-				module = new BinaryModule(this, path);
-				hash.put(path, module);
+				module = new BinaryModule(this, filename);
+				hash.put(filename, module);
 				info.addChild(module);
 			}
 			function = new BinaryFunction(module, symbol.getName(), symbol.getAddress());
@@ -206,17 +205,16 @@ public class Binary extends Openable implements IBinary {
 	}
 
 	private void addVariable(OpenableInfo info, ISymbol symbol, Map hash) {
-		String filename = filename = symbol.getFilename();
+		IPath filename = filename = symbol.getFilename();
 		BinaryVariable variable = null;
 		// Addr2line returns the funny "??" when it can not find the file.
 		if (filename != null && !filename.equals("??")) {
 			BinaryModule module = null;
-			IPath path = new Path(filename);
-			if (hash.containsKey(path)) {
-				module = (BinaryModule)hash.get(path);
+			if (hash.containsKey(filename)) {
+				module = (BinaryModule)hash.get(filename);
 			} else {
-				module = new BinaryModule(this, path);
-				hash.put(path, module);
+				module = new BinaryModule(this, filename);
+				hash.put(filename, module);
 				info.addChild(module);
 			}
 			variable = new BinaryVariable(module, symbol.getName(), symbol.getAddress());
diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelInfo.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelInfo.java
index 8b54b5d6581..f2cac585ec8 100644
--- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelInfo.java
+++ b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelInfo.java
@@ -21,7 +21,7 @@ public class CModelInfo extends CContainerInfo {
 	}
 
 	/**
-	 * Compute the non-java resources contained in this java project.
+	 * Compute the non-C resources contained in this C project.
 	 */
 	private Object[] computeNonCResources() {
 		IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelManager.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelManager.java
index ec5aa277b44..1b20fe0c268 100644
--- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelManager.java
+++ b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CModelManager.java
@@ -6,6 +6,7 @@ package org.eclipse.cdt.internal.core.model;
  */
  
 import java.io.IOException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -97,6 +98,11 @@ public class CModelManager implements IResourceChangeListener {
 	 * The list of started BinaryRunners on projects.
 	 */
 	private HashMap binaryRunners = new HashMap();
+
+	/**
+	 * Map of the binary parser for each project.
+	 */
+	private HashMap binaryParsersMap = new HashMap();
 	
 	/**
 	 * The lis of the SourceMappers on projects.
@@ -345,7 +351,14 @@ public class CModelManager implements IResourceChangeListener {
 
 	public IBinaryParser getBinaryParser(IProject project) {
 		try {
-			return CCorePlugin.getDefault().getBinaryParser(project);
+			IBinaryParser parser =  (IBinaryParser)binaryParsersMap.get(project);
+			if (parser == null) {
+				parser = CCorePlugin.getDefault().getBinaryParser(project);
+			}
+			if (parser != null) {
+				binaryParsersMap.put(project, parser);
+				return parser;
+			}
 		} catch (CoreException e) {
 		}
 		return new NullBinaryParser();
@@ -354,8 +367,22 @@ public class CModelManager implements IResourceChangeListener {
 	public IBinaryFile createBinaryFile(IFile file) {
 		try {
 			IBinaryParser parser = getBinaryParser(file.getProject());
-			return parser.getBinary(file.getLocation());
+			InputStream is = file.getContents();
+			byte[] bytes = new byte[128];
+			int count = is.read(bytes);
+			is.close();
+			if (count > 0 && count < bytes.length) {
+				byte[] array = new byte[count];
+				System.arraycopy(bytes, 0, array, 0, count);
+				bytes = array;
+			}
+			IPath location = file.getLocation();
+			if (parser.isBinary(bytes, location)) {
+				return parser.getBinary(location);
+			}
 		} catch (IOException e) {
+		} catch (CoreException e) {
+			//e.printStackTrace();
 		}
 		return null;
 	}
@@ -372,6 +399,7 @@ public class CModelManager implements IResourceChangeListener {
 				// but it has the side of effect of removing the CProject also
 				// so we have to recall create again.
 				releaseCElement(celement);
+				binaryParsersMap.remove(project);
 				celement = create(project);
 				Parent parent = (Parent)celement.getParent();
 				CElementInfo info = (CElementInfo)parent.getElementInfo();
@@ -750,6 +778,7 @@ public class CModelManager implements IResourceChangeListener {
 		break;
 		}
 	}
+
 	/** 
 	 * Returns the set of elements which are out of synch with their buffers.
 	 */
@@ -820,5 +849,6 @@ public class CModelManager implements IResourceChangeListener {
 		if (runner != null) {
 			runner.stop();
 		}
+		binaryParsersMap.remove(project);
 	}
 }
diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/NullBinaryParser.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/NullBinaryParser.java
index 148604d8a86..cf4c4586f09 100644
--- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/NullBinaryParser.java
+++ b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/NullBinaryParser.java
@@ -28,4 +28,11 @@ public class NullBinaryParser implements IBinaryParser {
 		return "Null Format";
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.cdt.core.IBinaryParser#isBinary(byte[], org.eclipse.core.runtime.IPath)
+	 */
+	public boolean isBinary(byte[] array, IPath path) {
+		return false;
+	}
+
 }
diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CCorePlugin.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CCorePlugin.java
index a9ed936d214..ee5e8c52939 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CCorePlugin.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/CCorePlugin.java
@@ -471,7 +471,7 @@ public class CCorePlugin extends Plugin {
 		if (project != null) {
 			try {
 				ICDescriptor cdesc = (ICDescriptor) getCProjectDescription(project);
-				ICExtensionReference[] cextensions = cdesc.get(BINARY_PARSER_UNIQ_ID);
+				ICExtensionReference[] cextensions = cdesc.get(BINARY_PARSER_UNIQ_ID, true);
 				if (cextensions.length > 0)
 					parser = (IBinaryParser) cextensions[0].createExtension();
 			} catch (CoreException e) {
diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/IBinaryParser.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/IBinaryParser.java
index 04abf78a16f..3f7e3a78898 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/IBinaryParser.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/IBinaryParser.java
@@ -55,7 +55,9 @@ public interface IBinaryParser {
 		boolean isLittleEndian();
 
 		ISymbol[] getSymbols();
-		
+
+		ISymbol getSymbol(long addr);
+
 		String getName();
 
 	}
@@ -74,7 +76,7 @@ public interface IBinaryParser {
 		String getSoName();
 	}
 
-	interface ISymbol {
+	interface ISymbol extends Comparable {
 		static final int FUNCTION = 0x01;
 		static final int VARIABLE = 0x02;
 	
@@ -82,11 +84,13 @@ public interface IBinaryParser {
 		long getAddress();
 		int getStartLine();
 		int getEndLine();
-		String getFilename();
+		IPath getFilename();
 		int getType();
 	}
 
 	IBinaryFile getBinary(IPath path) throws IOException;
+
+	boolean isBinary(byte[] array, IPath path);
 	
 	String getFormat();
 }
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE.java
index ba7d1949452..d95e27ab4f0 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE.java
@@ -438,6 +438,12 @@ public class PE {
 		return attrib;
 	}
 
+	public static boolean isExeHeader(byte[] e_signature) {
+		if (e_signature.length < 2 || e_signature[0] != 'M' || e_signature[1] != 'Z')
+			return false;
+		return true;
+	}
+
 	public static Attribute getAttributes(String file) throws IOException {
 		PE pe = new PE(file);
 		Attribute attrib = pe.getAttribute();
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java
index 37b1e21bb99..35cb63c392f 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PEArchive.java
@@ -200,6 +200,19 @@ public class PEArchive {
 		}
 	}
 
+	public static boolean isARHeader(byte[] ident) {
+		if (ident.length < 7
+			|| ident[0] != '!'
+			|| ident[1] != '<'
+			|| ident[2] != 'a'
+			|| ident[3] != 'r'
+			|| ident[4] != 'c'
+			|| ident[5] != 'h'
+			|| ident[6] != '>')
+			return false;
+		return true;
+	}
+
 	/**
 	 *  Creates a new <code>AR</code> object from the contents of 
 	 *  the given file.
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/ARMember.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/ARMember.java
index d213ecab810..73ec760ad76 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/ARMember.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/ARMember.java
@@ -13,11 +13,13 @@ package org.eclipse.cdt.utils.coff.parser;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.List;
 
 import org.eclipse.cdt.core.IBinaryParser.ISymbol;
 import org.eclipse.cdt.utils.Addr2line;
 import org.eclipse.cdt.utils.CPPFilt;
 import org.eclipse.cdt.utils.CygPath;
+import org.eclipse.cdt.utils.ICygwinToolsProvider;
 import org.eclipse.cdt.utils.coff.Coff;
 import org.eclipse.cdt.utils.coff.PE;
 import org.eclipse.cdt.utils.coff.PEArchive;
@@ -28,8 +30,8 @@ import org.eclipse.core.runtime.IPath;
 public class ARMember extends BinaryObject {
 	PEArchive.ARHeader header;
 
-	public ARMember(IPath p, PEArchive.ARHeader h) throws IOException {
-		super(p, h.getPE());
+	public ARMember(IPath p, PEArchive.ARHeader h, ICygwinToolsProvider provider) throws IOException {
+		super(p, h.getPE(), provider);
 		header = h;
 	}
 
@@ -67,7 +69,7 @@ public class ARMember extends BinaryObject {
 		throw new IOException("No file assiocated with Binary");
 	}
 
-	protected void addSymbols(Coff.Symbol[] peSyms, byte[] table, Addr2line addr2line, CPPFilt cppfilt, CygPath cypath) {
+	protected void addSymbols(Coff.Symbol[] peSyms, byte[] table, Addr2line addr2line, CPPFilt cppfilt, CygPath cypath, List list) {
 		for (int i = 0; i < peSyms.length; i++) {
 			if (peSyms[i].isFunction() || peSyms[i].isPointer() ||peSyms[i].isArray()) {
 				String name = peSyms[i].getName(table);
@@ -80,7 +82,7 @@ public class ARMember extends BinaryObject {
 
 				sym.name = name;
 				sym.addr = peSyms[i].n_value;
-				addSymbol(sym);
+				list.add(sym);
 			}
 		}
 	}
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryArchive.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryArchive.java
index a29aeaf8be9..d32d6e22dfb 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryArchive.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryArchive.java
@@ -38,7 +38,7 @@ public class BinaryArchive extends BinaryFile implements IBinaryArchive {
 				ar = new PEArchive(getPath().toOSString());
 				PEArchive.ARHeader[] headers = ar.getHeaders();
 				for (int i = 0; i < headers.length; i++) {
-					IBinaryObject bin = new ARMember(path, headers[i]);
+					IBinaryObject bin = new ARMember(path, headers[i], toolsProvider);
 					children.add(bin);
 				}
 			} catch (IOException e) {
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryObject.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryObject.java
index f71ef98628e..1ea7e6d2b93 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryObject.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/BinaryObject.java
@@ -1,11 +1,19 @@
+/**********************************************************************
+ * Copyright (c) 2002,2003 QNX Software Systems and others.
+ * All rights reserved.   This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors: 
+ * QNX Software Systems - Initial API and implementation
+***********************************************************************/
 package org.eclipse.cdt.utils.coff.parser;
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 
 import org.eclipse.cdt.core.IBinaryParser.IBinaryFile;
 import org.eclipse.cdt.core.IBinaryParser.IBinaryObject;
@@ -13,27 +21,29 @@ import org.eclipse.cdt.core.IBinaryParser.ISymbol;
 import org.eclipse.cdt.utils.Addr2line;
 import org.eclipse.cdt.utils.CPPFilt;
 import org.eclipse.cdt.utils.CygPath;
+import org.eclipse.cdt.utils.ICygwinToolsProvider;
 import org.eclipse.cdt.utils.coff.Coff;
 import org.eclipse.cdt.utils.coff.PE;
 import org.eclipse.cdt.utils.coff.PE.Attribute;
 import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
 
 /**
  */
 public class BinaryObject extends BinaryFile implements IBinaryObject {
 
 	PE.Attribute attribute;
-	ArrayList symbols;
+	ISymbol[] symbols;
 	int type = IBinaryFile.OBJECT;
-
+	private ISymbol[] NO_SYMBOLS = new ISymbol[0];
+	
 	public BinaryObject(IPath p) throws IOException {
 		super(p);
-		loadInformation();
-		hasChanged();
 	}
 
-	public BinaryObject(IPath p, PE pe) throws IOException {
+	public BinaryObject(IPath p, PE pe, ICygwinToolsProvider provider) throws IOException {
 		super(p);
+		setToolsProvider(provider);
 		loadInformation(pe);
 		pe.dispose();
 		hasChanged();
@@ -43,6 +53,18 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 		type = t;
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.cdt.core.IBinaryParser.IBinaryObject#getSymbol(long)
+	 */
+	public ISymbol getSymbol(long addr) {
+		ISymbol[] syms = getSymbols();
+		int i = Arrays.binarySearch(syms, new Long(addr));
+		if (i < 0 || i >= syms.length) {
+			return null;
+		}
+		return syms[i];
+	}
+
 	/**
 	 * @see org.eclipse.cdt.core.model.IBinaryParser.IBinaryFile#getType()
 	 */
@@ -87,15 +109,15 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 	 */
 	public ISymbol[] getSymbols() {
 		if (hasChanged() || symbols == null) {
-			if (symbols == null) {
-				symbols = new ArrayList(5);
-			}
 			try {
 				loadInformation();
 			} catch (IOException e) {
 			}
+			if (symbols == null) {
+				symbols = NO_SYMBOLS;
+			}
 		}
-		return (ISymbol[])symbols.toArray(new ISymbol[0]);
+		return symbols;
 	}
 
 	/**
@@ -163,11 +185,7 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 
 	private void loadInformation(PE pe) throws IOException {
 		loadAttribute(pe);
-		if (symbols != null) {
-			symbols.clear();
-			loadSymbols(pe);
-			symbols.trimToSize();
-		}
+		loadSymbols(pe);
 	}
 
 	private void loadAttribute(PE pe) throws IOException {
@@ -175,13 +193,14 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 	}
 
 	private void loadSymbols(PE pe) throws IOException {
+		ArrayList list = new ArrayList();
 		Addr2line addr2line = getAddr2Line();
 		CPPFilt cppfilt = getCPPFilt();
 		CygPath cygpath = getCygPath();
 
 		Coff.Symbol[] peSyms = pe.getSymbols();
 		byte[] table = pe.getStringTable();
-		addSymbols(peSyms, table, addr2line, cppfilt, cygpath);
+		addSymbols(peSyms, table, addr2line, cppfilt, cygpath, list);
 
 		if (addr2line != null) {
 			addr2line.dispose();
@@ -192,10 +211,13 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 		if (cygpath != null) {
 			cygpath.dispose();
 		}
-		symbols.trimToSize();
+
+		symbols = (ISymbol[])list.toArray(NO_SYMBOLS);
+		Arrays.sort(symbols);
+		list.clear();
 	}
 
-	protected void addSymbols(Coff.Symbol[] peSyms, byte[] table, Addr2line addr2line, CPPFilt cppfilt, CygPath cygpath) {
+	protected void addSymbols(Coff.Symbol[] peSyms, byte[] table, Addr2line addr2line, CPPFilt cppfilt, CygPath cygpath, List list) {
 		for (int i = 0; i < peSyms.length; i++) {
 			if (peSyms[i].isFunction() || peSyms[i].isPointer() ||peSyms[i].isArray()) {
 				String name = peSyms[i].getName(table);
@@ -220,20 +242,21 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 				sym.endLine = 0;
 				if (addr2line != null) {
 					try {
-						sym.filename =  addr2line.getFileName(sym.addr);
-						if (cygpath != null)
-							sym.filename =  cygpath.getFileName(sym.filename);
+						String filename =  addr2line.getFileName(sym.addr);
+						if (filename != null) {
+							if (cygpath != null) {
+								sym.filename =  new Path(cygpath.getFileName(filename));
+							} else {
+								sym.filename = new Path(filename);
+							}
+						}
 						sym.startLine = addr2line.getLineNumber(sym.addr);
 					} catch (IOException e) {
 					}
 				}
-				addSymbol(sym);
+				list.add(sym);
 			}
 		}
 	}
 
-	protected void addSymbol(Symbol sym) {
-		symbols.add(sym);
-	}
-
 }
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/PEParser.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/PEParser.java
index 4b7eeeafb22..1043a4a21e9 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/PEParser.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/PEParser.java
@@ -16,6 +16,7 @@ import java.io.IOException;
 import org.eclipse.cdt.core.AbstractCExtension;
 import org.eclipse.cdt.core.IBinaryParser;
 import org.eclipse.cdt.utils.coff.PE;
+import org.eclipse.cdt.utils.coff.PEArchive;
 import org.eclipse.cdt.utils.coff.PE.Attribute;
 import org.eclipse.core.runtime.IPath;
 
@@ -70,4 +71,11 @@ public class PEParser extends AbstractCExtension implements IBinaryParser {
 		return "PE";
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.cdt.core.IBinaryParser#isBinary(byte[], org.eclipse.core.runtime.IPath)
+	 */
+	public boolean isBinary(byte[] array, IPath path) {
+		return PE.isExeHeader(array) || PEArchive.isARHeader(array);
+	}
+
 }
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/Symbol.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/Symbol.java
index 14b84430b29..e0535a68416 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/Symbol.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/Symbol.java
@@ -14,12 +14,13 @@ import java.io.IOException;
 
 import org.eclipse.cdt.core.IBinaryParser.ISymbol;
 import org.eclipse.cdt.utils.Addr2line;
+import org.eclipse.core.runtime.IPath;
 
 public class Symbol implements ISymbol {
 
 	BinaryObject binary;
 
-	public String filename;
+	public IPath filename;
 	public int startLine;
 	public int endLine;
 	public long addr;
@@ -32,7 +33,7 @@ public class Symbol implements ISymbol {
 	/**
 	 * @see org.eclipse.cdt.core.model.IBinaryParser.ISymbol#getFilename()
 	 */
-	public String getFilename() {
+	public IPath getFilename() {
 		return filename;
 	}
 
@@ -88,4 +89,22 @@ public class Symbol implements ISymbol {
 		return line;
 	}
 
+	/* (non-Javadoc)
+	 * @see java.lang.Comparable#compareTo(java.lang.Object)
+	 */
+	public int compareTo(Object obj) {
+		long thisVal = 0;
+		long anotherVal = 0;
+		if (obj instanceof Symbol) {
+			Symbol sym = (Symbol) obj;
+			thisVal = this.addr;
+			anotherVal = sym.addr;
+		} else if (obj instanceof Long) {
+			Long val = (Long) obj;
+			anotherVal = val.longValue();
+			thisVal = (long) this.addr;
+		}
+		return (thisVal < anotherVal ? -1 : (thisVal == anotherVal ? 0 : 1));
+	}
+
 }
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/AR.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/AR.java
index 98df6c982a2..fcb9e7d6e9d 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/AR.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/AR.java
@@ -207,6 +207,19 @@ public class AR {
 		}
 	}
 
+	public static boolean isARHeader(byte[] ident) {
+		if (ident.length < 7
+			|| ident[0] != '!'
+			|| ident[1] != '<'
+			|| ident[2] != 'a'
+			|| ident[3] != 'r'
+			|| ident[4] != 'c'
+			|| ident[5] != 'h'
+			|| ident[6] != '>')
+			return false;
+		return true;
+	}
+
 	/**
 	 *  Creates a new <code>AR</code> object from the contents of 
 	 *  the given file.
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/Elf.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/Elf.java
index 1ef4640e788..76285236294 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/Elf.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/Elf.java
@@ -707,6 +707,13 @@ public class Elf {
 		return attrib;	
 	}
 	
+	public static boolean isElfHeader(byte[] e_ident) {
+		if (e_ident.length < 4 || e_ident[ELFhdr.EI_MAG0] != 0x7f || e_ident[ELFhdr.EI_MAG1] != 'E' || 
+			e_ident[ELFhdr.EI_MAG2] != 'L' || e_ident[ELFhdr.EI_MAG3] != 'F')
+			return false;
+		return true;
+	}
+
 	public void dispose() {
 		if (addr2line != null) {
 			addr2line.dispose();
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ARMember.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ARMember.java
index 417c369625c..a9162ef000f 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ARMember.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ARMember.java
@@ -13,9 +13,11 @@ package org.eclipse.cdt.utils.elf.parser;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.List;
 
 import org.eclipse.cdt.utils.Addr2line;
 import org.eclipse.cdt.utils.CPPFilt;
+import org.eclipse.cdt.utils.IToolsProvider;
 import org.eclipse.cdt.utils.elf.AR;
 import org.eclipse.cdt.utils.elf.Elf;
 import org.eclipse.cdt.utils.elf.ElfHelper;
@@ -26,8 +28,8 @@ import org.eclipse.core.runtime.IPath;
 public class ARMember extends BinaryObject {
 	AR.ARHeader header;
 
-	public ARMember(IPath p, AR.ARHeader h) throws IOException {
-		super(p, new ElfHelper(h.getElf()));
+	public ARMember(IPath p, AR.ARHeader h, IToolsProvider provider) throws IOException {
+		super(p, new ElfHelper(h.getElf()), provider);
 		header = h;
 	}
 
@@ -65,13 +67,13 @@ public class ARMember extends BinaryObject {
 		throw new IOException("No file assiocated with Binary");
 	}
 
-	protected void addSymbols(Elf.Symbol[] array, int type, Addr2line addr2line, CPPFilt cppfilt) {
+	protected void addSymbols(Elf.Symbol[] array, int type, Addr2line addr2line, CPPFilt cppfilt, List list) {
 		for (int i = 0; i < array.length; i++) {
 			Symbol sym = new Symbol(this);
 			sym.type = type;
 			sym.name = array[i].toString();
 			sym.addr = array[i].st_value;
-			addSymbol(sym);
+			list.add(sym);
 		}
 	}
 
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryArchive.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryArchive.java
index ba4a8b78fa5..d91f4190974 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryArchive.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryArchive.java
@@ -44,7 +44,7 @@ public class BinaryArchive extends BinaryFile implements IBinaryArchive {
 				ar = new AR(getPath().toOSString());
 				AR.ARHeader[] headers = ar.getHeaders();
 				for (int i = 0; i < headers.length; i++) {
-					IBinaryObject bin = new ARMember(getPath(), headers[i]);
+					IBinaryObject bin = new ARMember(getPath(), headers[i], toolsProvider);
 					children.add(bin);
 				}
 			} catch (IOException e) {
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryObject.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryObject.java
index fdf3d56a95a..d454d9c6e15 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryObject.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/BinaryObject.java
@@ -12,17 +12,21 @@ package org.eclipse.cdt.utils.elf.parser;
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 
 import org.eclipse.cdt.core.IBinaryParser.IBinaryFile;
 import org.eclipse.cdt.core.IBinaryParser.IBinaryObject;
 import org.eclipse.cdt.core.IBinaryParser.ISymbol;
 import org.eclipse.cdt.utils.Addr2line;
 import org.eclipse.cdt.utils.CPPFilt;
+import org.eclipse.cdt.utils.IToolsProvider;
 import org.eclipse.cdt.utils.elf.Elf;
 import org.eclipse.cdt.utils.elf.ElfHelper;
 import org.eclipse.cdt.utils.elf.Elf.Attribute;
 import org.eclipse.cdt.utils.elf.ElfHelper.Sizes;
 import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
 
 /**
  */
@@ -32,21 +36,33 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 	protected int type = IBinaryFile.OBJECT;
 	private Sizes sizes;
 	private Attribute attribute;
-	private ArrayList symbols;
+	private ISymbol[] symbols;
+	private ISymbol[] NO_SYMBOLS = new ISymbol[0];
 
 	public BinaryObject(IPath path) throws IOException {
 		super(path);
-		loadInformation();
-		hasChanged();
 	}
 
-	public BinaryObject(IPath path, ElfHelper helper) throws IOException {
+	public BinaryObject(IPath path, ElfHelper helper, IToolsProvider provider) throws IOException {
 		super(path);
+		setToolsProvider(provider);
 		loadInformation(helper);
 		helper.dispose();
 		hasChanged();
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.cdt.core.IBinaryParser.IBinaryObject#getSymbol(long)
+	 */
+	public ISymbol getSymbol(long addr) {
+		ISymbol[] syms = getSymbols();
+		int i = Arrays.binarySearch(syms, new Long(addr));
+		if (i < 0 || i >= syms.length) {
+			return null;
+		}
+		return syms[i];
+	}
+
 	/**
 	 * @see org.eclipse.cdt.core.model.IBinaryParser.IBinaryObject#getBSS()
 	 */
@@ -129,15 +145,15 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 	 */
 	public ISymbol[] getSymbols() {
 		if (hasChanged() || symbols == null) {
-			if (symbols == null) {
-				symbols = new ArrayList(5);
-			}
 			try {
 				loadInformation();
 			} catch (IOException e) {
 			}
+			if (symbols == null) {
+				symbols = NO_SYMBOLS;
+			}
 		}
-		return (ISymbol[]) symbols.toArray(new ISymbol[0]);
+		return symbols;
 	}
 
 	/**
@@ -189,11 +205,7 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 
 	private void loadInformation(ElfHelper helper) throws IOException {
 		loadAttributes(helper);
-		if (symbols != null) {
-			symbols.clear();
-			loadSymbols(helper);
-			symbols.trimToSize();
-		}
+		loadSymbols(helper);
 	}
 
 	private void loadAttributes(ElfHelper helper) throws IOException {
@@ -208,25 +220,18 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 	}
 
 	private void loadSymbols(ElfHelper helper) throws IOException {
-		Elf.Dynamic[] sharedlibs = helper.getNeeded();
-		needed = new String[sharedlibs.length];
-		for (int i = 0; i < sharedlibs.length; i++) {
-			needed[i] = sharedlibs[i].toString();
-		}
-		sizes = helper.getSizes();
-		soname = helper.getSoname();
-		attribute = helper.getElf().getAttributes();
+		ArrayList list = new ArrayList();
 		// Hack should be remove when Elf is clean
 		helper.getElf().setCppFilter(false);
 
 		Addr2line addr2line = getAddr2Line();
 		CPPFilt cppfilt = getCPPFilt();
 
-		addSymbols(helper.getExternalFunctions(), ISymbol.FUNCTION, addr2line, cppfilt);
-		addSymbols(helper.getLocalFunctions(), ISymbol.FUNCTION, addr2line, cppfilt);
-		addSymbols(helper.getExternalObjects(), ISymbol.VARIABLE, addr2line, cppfilt);
-		addSymbols(helper.getLocalObjects(), ISymbol.VARIABLE, addr2line, cppfilt);
-		symbols.trimToSize();
+		addSymbols(helper.getExternalFunctions(), ISymbol.FUNCTION, addr2line, cppfilt, list);
+		addSymbols(helper.getLocalFunctions(), ISymbol.FUNCTION, addr2line, cppfilt, list);
+		addSymbols(helper.getExternalObjects(), ISymbol.VARIABLE, addr2line, cppfilt, list);
+		addSymbols(helper.getLocalObjects(), ISymbol.VARIABLE, addr2line, cppfilt, list);
+		list.trimToSize();
 
 		if (addr2line != null) {
 			addr2line.dispose();
@@ -234,9 +239,13 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 		if (cppfilt != null) {
 			cppfilt.dispose();
 		}
+
+		symbols = (ISymbol[])list.toArray(NO_SYMBOLS);
+		Arrays.sort(symbols);
+		list.clear();
 	}
 
-	protected void addSymbols(Elf.Symbol[] array, int type, Addr2line addr2line, CPPFilt cppfilt) {
+	protected void addSymbols(Elf.Symbol[] array, int type, Addr2line addr2line, CPPFilt cppfilt, List list) {
 		for (int i = 0; i < array.length; i++) {
 			Symbol sym = new Symbol(this);
 			sym.type = type;
@@ -253,18 +262,15 @@ public class BinaryObject extends BinaryFile implements IBinaryObject {
 			sym.endLine = sym.startLine;
 			if (addr2line != null) {
 				try {
-					sym.filename =  addr2line.getFileName(sym.addr);
+					String filename =  addr2line.getFileName(sym.addr);
+					sym.filename = (filename != null) ? new Path(filename) : null;
 					sym.startLine = addr2line.getLineNumber(sym.addr);
 					sym.endLine = addr2line.getLineNumber(sym.addr + array[i].st_size - 1);
 				} catch (IOException e) {
 				}
 			}
-			addSymbol(sym);
+			list.add(sym);
 		}
 	}
 
-	protected void addSymbol(Symbol sym) {
-		symbols.add(sym);
-	}
-
 }
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ElfParser.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ElfParser.java
index 348ff6d22cf..b3c4679ab65 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ElfParser.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/ElfParser.java
@@ -14,6 +14,7 @@ import java.io.IOException;
 
 import org.eclipse.cdt.core.AbstractCExtension;
 import org.eclipse.cdt.core.IBinaryParser;
+import org.eclipse.cdt.utils.elf.AR;
 import org.eclipse.cdt.utils.elf.Elf;
 import org.eclipse.cdt.utils.elf.Elf.Attribute;
 import org.eclipse.core.runtime.IPath;
@@ -67,4 +68,11 @@ public class ElfParser extends AbstractCExtension implements IBinaryParser {
 		return "ELF";
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.cdt.core.IBinaryParser#isBinary(byte[], org.eclipse.core.runtime.IPath)
+	 */
+	public boolean isBinary(byte[] array, IPath path) {
+		return Elf.isElfHeader(array) || AR.isARHeader(array);
+	}
+
 }
diff --git a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/Symbol.java b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/Symbol.java
index 263b0d1d98f..f05e274ab4e 100644
--- a/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/Symbol.java
+++ b/core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/elf/parser/Symbol.java
@@ -14,12 +14,13 @@ import java.io.IOException;
 
 import org.eclipse.cdt.core.IBinaryParser.ISymbol;
 import org.eclipse.cdt.utils.Addr2line;
+import org.eclipse.core.runtime.IPath;
 
-public class Symbol implements ISymbol {
+public class Symbol implements ISymbol, Comparable {
 
 	BinaryObject binary;
 
-	public String filename;
+	public IPath filename;
 	public int startLine;
 	public int endLine;
 	public long addr;
@@ -27,16 +28,15 @@ public class Symbol implements ISymbol {
 	public int type;
 
 	public Symbol(BinaryObject bin) {
-		binary = bin;		
+		binary = bin;
 	}
 	/**
 	 * @see org.eclipse.cdt.core.model.IBinaryParser.ISymbol#getFilename()
 	 */
-	public String getFilename() {
+	public IPath getFilename() {
 		return filename;
 	}
 
-
 	/**
 	 * @see org.eclipse.cdt.core.model.IBinaryParser.ISymbol#getName()
 	 */
@@ -83,9 +83,23 @@ public class Symbol implements ISymbol {
 				line = addr2line.getLineNumber(addr + offset);
 				addr2line.dispose();
 			}
-		} catch (IOException e) {		
+		} catch (IOException e) {
 		}
 		return line;
 	}
 
+	public int compareTo(Object obj) {
+		long thisVal = 0;
+		long anotherVal = 0;
+		if (obj instanceof Symbol) {
+			Symbol sym = (Symbol) obj;
+			thisVal = this.addr;
+			anotherVal = sym.addr;
+		} else if (obj instanceof Long) {
+			Long val = (Long) obj;
+			anotherVal = val.longValue();
+			thisVal = (long) this.addr;
+		}
+		return (thisVal < anotherVal ? -1 : (thisVal == anotherVal ? 0 : 1));
+	}
 }