merge carbide bug 6152 from CDT 5.0 (inernal) for executables performance improvements.
authortimkelly
Thu, 30 Jul 2009 17:06:37 -0500
changeset 45 70f756c14af3
parent 44 b0f794238767
child 46 a77f821427fa
merge carbide bug 6152 from CDT 5.0 (inernal) for executables performance improvements.
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/plugin.xml
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/ExecutablesImporter.exsd
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/ExecutablesProvider.exsd
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/SourceFilesProvider.exsd
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/SourceRemappingProvider.exsd
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/Executable.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/ExecutablesManager.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IExecutableImporter.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IExecutablesChangeListener.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IProjectExecutablesProvider.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/StandardExecutableProvider.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/executables/ExecutablesChangeEvent.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/executables/StandardExecutableProvider.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesContentProvider.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesView.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesViewer.java
cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/SourceFilesLabelProvider.java
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/plugin.xml	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/plugin.xml	Thu Jul 30 17:06:37 2009 -0500
@@ -5,6 +5,10 @@
      <extension-point id="CDebugger" name="%CDebugger.name" schema="schema/CDebugger.exsd"/>
      <extension-point id="BreakpointActionType" name="%BreakpointAction" schema="schema/BreakpointAction.exsd"/>
      <extension-point id="BreakpointExtension" name="%BreakpointAction" schema="schema/BreakpointExtension.exsd"/>
+     <extension-point id="ExecutablesProvider" name="Executables Provider" schema="schema/ExecutablesProvider.exsd"/>
+     <extension-point id="SourceFilesProvider" name="Source Files Provider" schema="schema/SourceFilesProvider.exsd"/>
+     <extension-point id="SourceRemappingProvider" name="Source Remapping Provider" schema="schema/SourceRemappingProvider.exsd"/>
+     <extension-point id="ExecutablesImporter" name="Executables Importer" schema="schema/ExecutablesImporter.exsd"/>
      <extension-point id="supportedSourceContainerTypes" name="%SupportedSourceContainerTypes.name" schema="schema/SupportedSourceContainerTypes.exsd"/>
 
     <extension
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/ExecutablesImporter.exsd	Thu Jul 30 17:06:37 2009 -0500
@@ -0,0 +1,86 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.cdt.debug.core" xmlns="http://www.w3.org/2001/XMLSchema">
+<annotation>
+      <appinfo>
+         <meta.schema plugin="org.eclipse.cdt.debug.core" id="ExecutablesImporter" name="Executables Importer"/>
+      </appinfo>
+      <documentation>
+         This extension points allows you to extened the executables manager in CDT by providing your own executables importer.
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <annotation>
+         <appinfo>
+            <meta.element />
+         </appinfo>
+      </annotation>
+      <complexType>
+         <sequence>
+            <element ref="provider"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute translatable="true"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="importer">
+      <complexType>
+         <attribute name="class" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.cdt.debug.core.executables.IExecutableImporter"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="since"/>
+      </appinfo>
+      <documentation>
+         CDT 7.0
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="examples"/>
+      </appinfo>
+      <documentation>
+         &lt;extension
+         point=&quot;org.eclipse.cdt.debug.core.ExecutablesImporter&quot;&gt;
+      &lt;modifier class=&quot;com.xyz.MyExecutablesImporter&quot;/&gt;
+   &lt;/extension&gt;
+      </documentation>
+   </annotation>
+
+</schema>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/ExecutablesProvider.exsd	Thu Jul 30 17:06:37 2009 -0500
@@ -0,0 +1,86 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.cdt.debug.core" xmlns="http://www.w3.org/2001/XMLSchema">
+<annotation>
+      <appinfo>
+         <meta.schema plugin="org.eclipse.cdt.debug.core" id="ExecutablesProvider" name="Executables Provider"/>
+      </appinfo>
+      <documentation>
+         This extension points allows you to extened the executables manager in CDT by providing your own executables provider for certain types of projects.
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <annotation>
+         <appinfo>
+            <meta.element />
+         </appinfo>
+      </annotation>
+      <complexType>
+         <sequence>
+            <element ref="provider"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute translatable="true"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="provider">
+      <complexType>
+         <attribute name="class" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.cdt.debug.core.executables.IProjectExecutablesProvider"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="since"/>
+      </appinfo>
+      <documentation>
+         CDT 7.0
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="examples"/>
+      </appinfo>
+      <documentation>
+         &lt;extension
+         point=&quot;org.eclipse.cdt.debug.core.ExecutablesProvider&quot;&gt;
+      &lt;modifier class=&quot;com.xyz.MyExecutablesProvider&quot;/&gt;
+   &lt;/extension&gt;
+      </documentation>
+   </annotation>
+
+</schema>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/SourceFilesProvider.exsd	Thu Jul 30 17:06:37 2009 -0500
@@ -0,0 +1,86 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.cdt.debug.core" xmlns="http://www.w3.org/2001/XMLSchema">
+<annotation>
+      <appinfo>
+         <meta.schema plugin="org.eclipse.cdt.debug.core" id="SourceFilesProvider" name="Source Files Provider"/>
+      </appinfo>
+      <documentation>
+         This extension points allows you to extened the executables manager in CDT by providing your own source files provider for certain types of executables.
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <annotation>
+         <appinfo>
+            <meta.element />
+         </appinfo>
+      </annotation>
+      <complexType>
+         <sequence>
+            <element ref="provider"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute translatable="true"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="provider">
+      <complexType>
+         <attribute name="class" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.cdt.debug.core.executables.ISourceFilesProvider"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="since"/>
+      </appinfo>
+      <documentation>
+         CDT 7.0
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="examples"/>
+      </appinfo>
+      <documentation>
+         &lt;extension
+         point=&quot;org.eclipse.cdt.debug.core.SourceFilesProvider&quot;&gt;
+      &lt;modifier class=&quot;com.xyz.MySourceFilesProvider&quot;/&gt;
+   &lt;/extension&gt;
+      </documentation>
+   </annotation>
+
+</schema>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/schema/SourceRemappingProvider.exsd	Thu Jul 30 17:06:37 2009 -0500
@@ -0,0 +1,86 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.cdt.debug.core" xmlns="http://www.w3.org/2001/XMLSchema">
+<annotation>
+      <appinfo>
+         <meta.schema plugin="org.eclipse.cdt.debug.core" id="SourceRemappingProvider" name="Source Remapping Provider"/>
+      </appinfo>
+      <documentation>
+         This extension points allows you to extened the executables manager in CDT by providing your own source remapping provider.
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <annotation>
+         <appinfo>
+            <meta.element />
+         </appinfo>
+      </annotation>
+      <complexType>
+         <sequence>
+            <element ref="provider"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute translatable="true"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="provider">
+      <complexType>
+         <attribute name="class" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appinfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.cdt.debug.core.executables.ISourceFileRemapping"/>
+               </appinfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="since"/>
+      </appinfo>
+      <documentation>
+         CDT 7.0
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appinfo>
+         <meta.section type="examples"/>
+      </appinfo>
+      <documentation>
+         &lt;extension
+         point=&quot;org.eclipse.cdt.debug.core.SourceRemappingProvider&quot;&gt;
+      &lt;modifier class=&quot;com.xyz.MySourceRemappingProvider&quot;/&gt;
+   &lt;/extension&gt;
+      </documentation>
+   </annotation>
+
+</schema>
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/Executable.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/Executable.java	Thu Jul 30 17:06:37 2009 -0500
@@ -135,7 +135,7 @@
 	 * @noreference This method is not intended to be referenced by clients.
 	 * @since 6.0
 	 */
-	public TranslationUnit[] getSourceFiles(IProgressMonitor monitor) {
+	public synchronized TranslationUnit[] getSourceFiles(IProgressMonitor monitor) {
 		
 		if (!refreshSourceFiles)
 			return sourceFiles.toArray(new TranslationUnit[sourceFiles.size()]) ;
@@ -241,7 +241,7 @@
 		this.refreshSourceFiles = refreshSourceFiles;
 	}
 
-	public String getOriginalLocation(ITranslationUnit tu) {
+	public synchronized String getOriginalLocation(ITranslationUnit tu) {
 		String orgLocation = remappedPaths.get(tu);
 		if (orgLocation == null)
 			orgLocation = tu.getLocation().toOSString();
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/ExecutablesManager.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/ExecutablesManager.java	Thu Jul 30 17:06:37 2009 -0500
@@ -11,29 +11,50 @@
 
 package org.eclipse.cdt.debug.core.executables;
 
+import java.text.DateFormat;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
+import org.eclipse.cdt.core.model.CoreModel;
+import org.eclipse.cdt.core.settings.model.CProjectDescriptionEvent;
+import org.eclipse.cdt.core.settings.model.ICProjectDescription;
+import org.eclipse.cdt.core.settings.model.ICProjectDescriptionListener;
 import org.eclipse.cdt.debug.core.CDebugCorePlugin;
-import org.eclipse.cdt.debug.internal.core.executables.ExecutablesChangeEvent;
 import org.eclipse.cdt.debug.internal.core.executables.StandardExecutableImporter;
-import org.eclipse.cdt.debug.internal.core.executables.StandardExecutableProvider;
 import org.eclipse.cdt.debug.internal.core.executables.StandardSourceFileRemapping;
 import org.eclipse.cdt.debug.internal.core.executables.StandardSourceFilesProvider;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IResourceChangeEvent;
+import org.eclipse.core.resources.IResourceChangeListener;
+import org.eclipse.core.resources.IResourceDelta;
+import org.eclipse.core.resources.IResourceDeltaVisitor;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExtension;
+import org.eclipse.core.runtime.IExtensionPoint;
+import org.eclipse.core.runtime.IExtensionRegistry;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.MultiStatus;
+import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.PlatformObject;
 import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.core.runtime.SubProgressMonitor;
 import org.eclipse.core.runtime.jobs.Job;
-import org.eclipse.debug.core.DebugPlugin;
+import org.eclipse.osgi.service.debug.DebugOptions;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
 
 /**
  * The Executables Manager maintains a collection of executables built by all of
@@ -43,28 +64,78 @@
  * @author Ken Ryall
  * 
  */
-public class ExecutablesManager extends PlatformObject {
+public class ExecutablesManager extends PlatformObject implements IResourceChangeListener, ICProjectDescriptionListener {
 
-	private final HashMap<String, Executable> executables = new HashMap<String, Executable>();
-	private final List<IExecutablesChangeListener> changeListeners = Collections.synchronizedList(new ArrayList<IExecutablesChangeListener>());
-	private final List<ISourceFileRemapping> sourceFileRemappings = Collections.synchronizedList(new ArrayList<ISourceFileRemapping>());
-	private final List<IExecutableProvider> executableProviders = Collections.synchronizedList(new ArrayList<IExecutableProvider>());
-	private final List<ISourceFilesProvider> sourceFileProviders = Collections.synchronizedList(new ArrayList<ISourceFilesProvider>());
-	private final List<IExecutableImporter> executableImporters = Collections.synchronizedList(new ArrayList<IExecutableImporter>());
-	private boolean refreshNeeded = true;
-	private boolean tempDisableRefresh = false;
+	private static final String EXECUTABLES_MANAGER_DEBUG_TRACING = CDebugCorePlugin.PLUGIN_ID + "EXECUTABLES_MANAGER_DEBUG_TRACING"; //$NON-NLS-1$
+		
+	private Map<IProject, IProjectExecutablesProvider> executablesProviderMap = new HashMap<IProject, IProjectExecutablesProvider>();
+	private Map<IProject, List<Executable>> executablesMap = new HashMap<IProject, List<Executable>>();
+	private List<IExecutablesChangeListener> changeListeners = Collections.synchronizedList(new ArrayList<IExecutablesChangeListener>());
+	private List<IProjectExecutablesProvider> executableProviders;
+	private List<ISourceFilesProvider> sourceFileProviders;
+	private List<ISourceFileRemapping> sourceFileRemappings;
+	private List<IExecutableImporter> executableImporters;
+	
+	private boolean DEBUG;
 	
 	private final Job refreshJob = new Job("Get Executables") {
 
 		@Override
 		public IStatus run(IProgressMonitor monitor) {
-			refreshExecutables(monitor);
+
+			trace("Get Executables job started at "
+					+ getStringFromTimestamp(System.currentTimeMillis()));
+
+			List<IProject> projects = getProjectsToCheck();
+
+			SubMonitor subMonitor = SubMonitor
+					.convert(monitor, projects.size());
+
+			for (IProject project : projects) {
+				if (subMonitor.isCanceled()) {
+					trace("Get Executables job cancelled at "
+							+ getStringFromTimestamp(System.currentTimeMillis()));
+					return Status.CANCEL_STATUS;
+				}
+
+				subMonitor.subTask("Checking project: " + project.getName());
+
+				// get the executables provider for this project
+				IProjectExecutablesProvider provider = getExecutablesProviderForProject(project);
+				if (provider != null) {
+					trace("Getting executables for project: "
+							+ project.getName() + " using "
+							+ provider.toString());
+
+					// store the list of executables for this project
+					synchronized (executablesMap) {
+						executablesMap.put(project, provider.getExecutables(
+								project, subMonitor.newChild(1,
+										SubMonitor.SUPPRESS_NONE)));
+					}
+				}
+			}
+
+			// notify the listeners
+			synchronized (changeListeners) {
+				for (IExecutablesChangeListener listener : changeListeners) {
+					listener.executablesListChanged();
+				}
+			}
+
+			trace("Get Executables job finished at "
+					+ getStringFromTimestamp(System.currentTimeMillis()));
+
 			return Status.OK_STATUS;
 		}
 	};
 
 	private static ExecutablesManager executablesManager = null;
-
+	
+	/**
+	* Get the executables manager instance
+	* @return the executables manager
+	*/
 	public static ExecutablesManager getExecutablesManager() {
 		if (executablesManager == null)
 			executablesManager = new ExecutablesManager();
@@ -72,126 +143,130 @@
 	}
 
 	public ExecutablesManager() {
-		addSourceFileRemapping(new StandardSourceFileRemapping());
-		addExecutableImporter(new StandardExecutableImporter());
-		addExecutablesProvider(new StandardExecutableProvider());
-		addSourceFilesProvider(new StandardSourceFilesProvider());
+		// check if debugging is enabled
+		BundleContext context = CDebugCorePlugin.getDefault().getBundle()
+				.getBundleContext();
+		if (context != null) {
+			ServiceReference reference = CDebugCorePlugin.getDefault()
+					.getBundle().getBundleContext().getServiceReference(
+							DebugOptions.class.getName());
+			if (reference != null) {
+				DebugOptions service = (DebugOptions) context
+						.getService(reference);
+				if (service != null) {
+					try {
+						DEBUG = service.getBooleanOption(
+								EXECUTABLES_MANAGER_DEBUG_TRACING, false);
+					} finally {
+						// we have what we want - release the service
+						context.ungetService(reference);
+					}
+				}
+			}
+		}
+
+		refreshJob.setPriority(Job.SHORT);
+
+		// load the extension points
+		loadExecutableProviderExtensions();
+		loadSoureFileProviderExtensions();
+		loadSoureRemappingExtensions();
+		loadExecutableImporterExtensions();
+
+		// add the standard providers
+		executableProviders.add(0, new StandardExecutableProvider());
+		sourceFileProviders.add(0, new StandardSourceFilesProvider());
+		sourceFileRemappings.add(0, new StandardSourceFileRemapping());
+		executableImporters.add(0, new StandardExecutableImporter());
+
+		// listen for events we're interested in
+		ResourcesPlugin.getWorkspace().addResourceChangeListener(
+				this,
+				IResourceChangeEvent.POST_CHANGE
+						| IResourceChangeEvent.POST_BUILD);
+		CoreModel.getDefault().getProjectDescriptionManager()
+				.addCProjectDescriptionListener(this,
+						CProjectDescriptionEvent.DATA_APPLIED);
+
+		// schedule a refresh so we get up to date
+		scheduleRefresh();
+
 	}
 
+	/**
+	* Adds an executable listener
+	* @param listener the listener to add
+	*/
 	public void addExecutablesChangeListener(IExecutablesChangeListener listener) {
 		changeListeners.add(listener);
 	}
 
+	/**
+	* Removes an executable listener
+	* @param listener the listener to remove
+	*/
 	public void removeExecutablesChangeListener(IExecutablesChangeListener listener) {
 		changeListeners.remove(listener);
 	}
 
-	public void addSourceFileRemapping(ISourceFileRemapping remapping) {
-		sourceFileRemappings.add(remapping);
-	}
-
-	public void removeSourceFileRemapping(ISourceFileRemapping remapping) {
-		sourceFileRemappings.remove(remapping);
-	}
-
-	public void addExecutableImporter(IExecutableImporter importer) {
-		executableImporters.add(importer);
-	}
-
-	public void removeExecutableImporter(IExecutableImporter importer) {
-		executableImporters.remove(importer);
-	}
-
-	public void addExecutablesProvider(IExecutableProvider provider) {
-		executableProviders.add(provider);
-	}
-
-	/**
-	 * @since 6.0
-	 */
-	public void addSourceFilesProvider(ISourceFilesProvider provider) {
-		sourceFileProviders.add(provider);
-	}
+	
 
 	/**
-	 * @since 6.0
-	 */
-	public void removeSourceFilesProvider(ISourceFilesProvider provider) {
-		sourceFileProviders.remove(provider);
-	}
-
-	public void removeExecutablesProvider(IExecutableProvider provider) {
-		executableProviders.remove(provider);
-	}
-
-	public IStatus refreshExecutables(IProgressMonitor monitor) {
-		if (tempDisableRefresh) {
-			return Status.OK_STATUS;
-		}
-
-		
-		synchronized (executables) {
-			HashMap<String, Executable> oldList = new HashMap<String, Executable>(executables);
-			executables.clear();
-
-			IExecutableProvider[] exeProviders = getExecutableProviders();
-
-			Arrays.sort(exeProviders, new Comparator<IExecutableProvider>() {
+	* Gets the list of executables in the workspace.
+	* @return the list of executables which may be empty
+	*/
+	public Collection<Executable> getExecutables() {	
+		trace("getExecutables called at " + getStringFromTimestamp(System.currentTimeMillis()));
+		List<Executable> executables = new ArrayList<Executable>();
 
-				public int compare(IExecutableProvider arg0, IExecutableProvider arg1) {
-					int p0 = arg0.getPriority();
-					int p1 = arg1.getPriority();
-					if (p0 > p1)
-						return 1;
-					if (p0 < p1)
-						return -1;
-					return 0;
-				}});
+		synchronized (executablesMap) {
+			for (List<Executable> exes : executablesMap.values()) {
+				for (Executable exe : exes) {
+					if (!executables.contains(exe)) {
+						executables.add(exe);
+					}
 
-			refreshNeeded = false;
-			monitor.beginTask("Refresh Executables", exeProviders.length);
-			for (IExecutableProvider provider : exeProviders) {
-				Executable[] exes = provider.getExecutables(new SubProgressMonitor(monitor, 1));
-				for (Executable executable : exes) {
-					executables.put(executable.getPath().toOSString(), executable);
-				}
-			}
-			monitor.done();
-
-			synchronized (changeListeners) {
-				Collection<Executable> newExes = executables.values();
-				Executable[] exeArray = newExes.toArray(new Executable[newExes.size()]);
-				Collection<Executable> oldExes = oldList.values();
-				Executable[] oldArray = oldExes.toArray(new Executable[oldExes.size()]);				
-				for (IExecutablesChangeListener listener : changeListeners) {
-					listener.executablesChanged(new ExecutablesChangeEvent(oldArray, exeArray));
 				}
 			}
 		}
 
-		return monitor.isCanceled() ? Status.CANCEL_STATUS : Status.OK_STATUS;
-	}
+		trace("getExecutables returned at " + getStringFromTimestamp(System.currentTimeMillis()));
+		
+		return executables;
 
-	public Executable[] getExecutables() {
-		if (refreshNeeded) {
-			try {
-				refreshJob.schedule();
-				refreshJob.join();
-			} catch (InterruptedException e) {
-				DebugPlugin.log( e );
-			}
-		}
-		
-		synchronized (executables)
-		{
-			Collection<Executable> exes = executables.values();
-			return exes.toArray(new Executable[exes.size()]);
-		}
 	}
 
 	/**
-	 * @since 6.0
-	 */
+	* Gets the collection of executables for the given project
+	* @param project the project
+	* @return collection of executables which may be empty
+	*/
+	public Collection<Executable> getExecutablesForProject(IProject project) {
+		List<Executable> executables = new ArrayList<Executable>();
+
+		synchronized (executablesMap) {
+			List<Executable> exes = executablesMap.get(project);
+			if (exes != null) {
+				for (Executable exe : exes) {
+					if (!executables.contains(exe)) {
+						executables.add(exe);
+					}
+				}
+			}
+		}
+		return executables;
+	}
+			
+
+	/**
+	* Attempt to remap the path to the given source file in the given executable using
+	* source file mapping extensions
+	* @param executable the executable
+	* @param filePath the absolute path to the source file
+	* @return the new path to the source file, which was remapped if possible
+	*
+	* @since 6.0
+	*/
 	public String remapSourceFile(Executable executable, String filePath) {
 		synchronized (sourceFileRemappings) {
 			for (ISourceFileRemapping remapping : sourceFileRemappings) {
@@ -203,45 +278,64 @@
 		return filePath;
 	}
 
-	public void importExecutables(final String[] fileNames, IProgressMonitor monitor) {
+	/**
+	* Import the given executables into the manager
+	* @param fileNames the absolute paths of the executables to import
+	* @param monitor progress monitor
+	*/
+	public void importExecutables(final String[] fileNames,
+			IProgressMonitor monitor) {
 		boolean handled = false;
-		try {
-			
-			tempDisableRefresh = true;
-			monitor.beginTask("Import Executables", executableImporters.size());
-			synchronized (executableImporters) {
-				Collections.sort(executableImporters, new Comparator<IExecutableImporter>() {
+		monitor.beginTask("Import Executables", executableImporters.size());
+		synchronized (executableImporters) {
+			Collections.sort(executableImporters,
+					new Comparator<IExecutableImporter>() {
+
+						public int compare(IExecutableImporter arg0,
+								IExecutableImporter arg1) {
+							int p0 = arg0.getPriority(fileNames);
+							int p1 = arg1.getPriority(fileNames);
+							if (p0 < p1)
+								return 1;
+							if (p0 > p1)
+								return -1;
+							return 0;
+						}
+					});
 
-					public int compare(IExecutableImporter arg0, IExecutableImporter arg1) {
-						int p0 = arg0.getPriority(fileNames);
-						int p1 = arg1.getPriority(fileNames);
-						if (p0 < p1)
-							return 1;
-						if (p0 > p1)
-							return -1;
-						return 0;
-					}});
+			for (IExecutableImporter importer : executableImporters) {
+				if (handled || monitor.isCanceled()) {
+					break;
+				}
+			}
+		}
 
-				for (IExecutableImporter importer : executableImporters) {
-					handled = importer.importExecutables(fileNames, new SubProgressMonitor(monitor, 1));
-					if (handled || monitor.isCanceled()) {
-						break;
+		scheduleRefresh();
+	}
+							
+	/**
+	 * Determines if the given executable is currently known by the manager
+	 * 
+	 * @param exePath
+	 *            the absolute path to the executable
+	 * @return true if the manager knows about it, false otherwise
+	 */
+	public boolean executableExists(IPath exePath) {
+		synchronized (executablesMap) {
+			for (List<Executable> exes : executablesMap.values()) {
+				for (Executable exe : exes) {
+					if (exe.getPath().equals(exePath)) {
+						return true;
+
 					}
 				}
 			}
 
-		} finally {
-			tempDisableRefresh = false;
 		}
-		
-		if (handled)
-			refreshExecutables(monitor);
-		monitor.done();
+
+		return false;
 	}
 
-	public ISourceFileRemapping[] getSourceFileRemappings() {
-		return sourceFileRemappings.toArray(new ISourceFileRemapping[sourceFileRemappings.size()]);
-	}
 
 	public IExecutableProvider[] getExecutableProviders() {
 		return executableProviders.toArray(new IExecutableProvider[executableProviders.size()]);
@@ -254,31 +348,17 @@
 		return sourceFileProviders.toArray(new ISourceFilesProvider[sourceFileProviders.size()]);
 	}
 
-	public IExecutableImporter[] getExecutableImporters() {
-		return executableImporters.toArray(new IExecutableImporter[executableImporters.size()]);
-	}
-
-	public void scheduleRefresh(IExecutableProvider provider, long delay) {
-		refreshNeeded = true;
-		refreshJob.schedule(delay);
-	}
+	/**
+	* Get the list of source files for the given executable
+	* @param executable the executable
+	* @param monitor progress monitor
+	* @return an array of source files which may be empty
+	*/
+	public String[] getSourceFiles(final Executable executable, IProgressMonitor monitor) {
+			String[] result = new String[0];
+			trace("getSourceFiles called at " + getStringFromTimestamp(System.currentTimeMillis()) + " for " + executable.getPath().toOSString());
 
-	public boolean refreshNeeded() {
-		return refreshNeeded;
-	}
-	
-	public boolean executableExists(IPath exePath) {
-		synchronized (executables) {
-			return executables.containsKey(exePath.toOSString());			
-		}
-	}
 
-	/**
-	 * @since 6.0
-	 */
-	public String[] getSourceFiles(final Executable executable,
-			IProgressMonitor monitor) {
-		String[] result = new String[0];
 		synchronized (sourceFileProviders) {
 			Collections.sort(sourceFileProviders, new Comparator<ISourceFilesProvider>() {
 
@@ -295,67 +375,467 @@
 			monitor.beginTask("Finding source files in " + executable.getName(), sourceFileProviders.size());
 			for (ISourceFilesProvider provider : sourceFileProviders) {
 				String[] sourceFiles = provider.getSourceFiles(executable, new SubProgressMonitor(monitor, 1));
-				if (sourceFiles.length > 0)
-				{
+				if (sourceFiles.length > 0) {
 					result = sourceFiles;
+					trace("getSourceFiles got " + sourceFiles.length + " files from " + provider.toString());
 					break;
 				}
 			}
+			
+			trace("getSourceFiles returned at " + getStringFromTimestamp(System.currentTimeMillis()));
+
 			monitor.done();
 		}
 		return result;
 	}
 
 	/**
-	 * @since 6.0
-	 */
-	public IStatus removeExecutables(Executable[] executables, IProgressMonitor monitor) {
-		IExecutableProvider[] exeProviders = getExecutableProviders();
+	* Removes the given executables
+	* @param executables the array of executables to be removed
+	* @param monitor progress monitor
+	* @return IStatus of the operation
+	* 
+	* @since 6.0
+	*/
+	public IStatus removeExecutables(Executable[] executables,
+			IProgressMonitor monitor) {
+		MultiStatus status = new MultiStatus(CDebugCorePlugin.PLUGIN_ID,
+				IStatus.WARNING,
+				"Couldn't remove all of the selected executables", null);
 
-		IStatus result = Status.OK_STATUS;
-		
-		Arrays.sort(exeProviders, new Comparator<IExecutableProvider>() {
+		monitor.beginTask("Remove Executables", executables.length);
 
-			public int compare(IExecutableProvider arg0, IExecutableProvider arg1) {
-				int p0 = arg0.getPriority();
-				int p1 = arg1.getPriority();
-				if (p0 > p1)
-					return 1;
-				if (p0 < p1)
-					return -1;
-				return 0;
-			}
-		});
-
-		MultiStatus combinedStatus = new MultiStatus(CDebugCorePlugin.PLUGIN_ID, IStatus.WARNING, "Couldn't remove all of the selected executables", null);
-		refreshNeeded = false;
-		monitor.beginTask("Remove Executables", exeProviders.length);
 		for (Executable executable : executables) {
-			boolean handled = false;
-			IStatus rmvStatus = Status.OK_STATUS;;
-			for (IExecutableProvider provider : exeProviders) {
-				if (!handled)
-				{
-					rmvStatus = provider.removeExecutable(executable, new SubProgressMonitor(monitor, 1));
-					handled = rmvStatus.getSeverity() == IStatus.OK;
-				}				
-			}
-			if (!handled)
-			{
-				combinedStatus.add(rmvStatus);
-				result = combinedStatus;
+			IProjectExecutablesProvider provider = getExecutablesProviderForProject(executable
+					.getProject());
+			if (provider != null) {
+				IStatus result = provider.removeExecutable(executable,
+						new SubProgressMonitor(monitor, 1));
+				if (result.isOK()) {
+					// remove the exe from the list
+					List<Executable> exes = executablesMap.get(executable
+							.getProject());
+					if (exes != null) {
+						exes.remove(executable);
+					}
+				} else {
+					status.add(result);
+				}
 			}
 		}
-		monitor.done();
-		
-		return result;
+
+		// notify listeners that the list has changed. only do this if at least
+		// one delete succeeded.
+		if (status.getChildren().length != executables.length) {
+			synchronized (changeListeners) {
+				for (IExecutablesChangeListener listener : changeListeners) {
+					listener.executablesListChanged();
+				}
+			}
+		}
+
+		return status;
 	}
 
 	/**
-	 * @since 6.0
-	 */
-	public void setRefreshNeeded(boolean refresh) {
-		refreshNeeded = true;
+	* Refresh the list of executables for the given projects
+	* @param projects the list of projects, or null.  if null or the list
+	* is empty, all projects will be refreshed.
+	*/
+	public void refresh(List<IProject> projects) {
+		if (projects == null || projects.size() == 0) {
+			// clear the entire cache
+			executablesMap.clear();
+		} else {
+			for (IProject project : projects) {
+				executablesMap.remove(project);
+			}
+		}
+
+		scheduleRefresh();
+
+	}
+
+	public void resourceChanged(IResourceChangeEvent event) {
+
+		synchronized (executablesMap) {
+			// project needs to be refreshed after a build/clean as the binary
+			// may
+			// be added/removed/renamed etc.
+			if (event.getType() == IResourceChangeEvent.POST_BUILD) {
+				Object obj = event.getSource();
+				if (obj != null && obj instanceof IProject) {
+					if (executablesMap.containsKey(obj)) {
+						List<Executable> executables = executablesMap
+								.remove(obj);
+
+						trace("Scheduling refresh because project "
+								+ ((IProject) obj).getName()
+								+ " built or cleaned");
+
+						scheduleRefresh();
+
+						// notify the listeners that these executables have
+						// possibly changed
+						if (executables != null && executables.size() > 0) {
+							synchronized (changeListeners) {
+								for (IExecutablesChangeListener listener : changeListeners) {
+									listener.executablesChanged(executables);
+								}
+							}
+						}
+					}
+				}
+				return;
+			}
+
+			// refresh when projects are opened or closed. note that deleted
+			// projects are handled later in this method. new projects are
+			// handled
+			// in handleEvent. resource changed events always start at the
+			// workspace
+			// root, so projects are the next level down
+			boolean refreshNeeded = false;
+			IResourceDelta[] projects = event.getDelta().getAffectedChildren();
+			for (IResourceDelta projectDelta : projects) {
+				if ((projectDelta.getFlags() & IResourceDelta.OPEN) != 0) {
+					if (projectDelta.getKind() == IResourceDelta.CHANGED) {
+						// project was opened or closed
+						if (executablesMap.containsKey(projectDelta
+								.getResource())) {
+							executablesMap.remove(projectDelta.getResource());
+						}
+						refreshNeeded = true;
+					}
+				}
+			}
+
+			if (refreshNeeded) {
+				trace("Scheduling refresh because project(s) opened or closed");
+
+				scheduleRefresh();
+				return;
+			}
+
+			try {
+				event.getDelta().accept(new IResourceDeltaVisitor() {
+
+					public boolean visit(IResourceDelta delta)
+							throws CoreException {
+						if (delta.getKind() == IResourceDelta.ADDED
+								|| delta.getKind() == IResourceDelta.REMOVED) {
+							IResource deltaResource = delta.getResource();
+							if (deltaResource != null) {
+								boolean refresh = false;
+								if (delta.getKind() == IResourceDelta.REMOVED
+										&& deltaResource instanceof IProject) {
+									// project deleted
+									if (executablesMap
+											.containsKey(deltaResource)) {
+										executablesMap.remove(deltaResource);
+										refresh = true;
+
+										trace("Scheduling refresh because project "
+												+ deltaResource.getName()
+												+ " deleted");
+									}
+								} else {
+									// see if a binary has been added/removed
+									IPath resourcePath = deltaResource
+											.getLocation();
+									if (resourcePath != null
+											&& Executable
+													.isExecutableFile(resourcePath)) {
+										if (executablesMap
+												.containsKey(deltaResource
+														.getProject())) {
+											executablesMap.remove(deltaResource
+													.getProject());
+											refresh = true;
+
+											trace("Scheduling refresh because a binary was added/removed");
+										}
+									}
+								}
+
+								if (refresh) {
+									scheduleRefresh();
+									return false;
+								}
+							}
+						}
+						return true;
+					}
+				});
+			} catch (CoreException e) {
+			}
+		}
+	}
+
+	public void handleEvent(CProjectDescriptionEvent event) {
+		// this handles the cases where the active build configuration changes,
+		// and when new projects are created or loaded at startup.
+		boolean refresh = false;
+
+		int eventType = event.getEventType();
+
+		if (eventType == CProjectDescriptionEvent.DATA_APPLIED) {
+
+			synchronized (executablesMap) {
+				// see if the active build config has changed
+				ICProjectDescription newDesc = event
+						.getNewCProjectDescription();
+				ICProjectDescription oldDesc = event
+						.getOldCProjectDescription();
+				if (oldDesc != null && newDesc != null) {
+					String newConfigName = newDesc.getActiveConfiguration()
+							.getName();
+					String oldConfigName = oldDesc.getActiveConfiguration()
+							.getName();
+					if (!newConfigName.equals(oldConfigName)) {
+						if (executablesMap.containsKey(newDesc.getProject())) {
+							executablesMap.remove(newDesc.getProject());
+							refresh = true;
+
+							trace("Scheduling refresh because active build configuration changed");
+						}
+					}
+				} else if (newDesc != null && oldDesc == null) {
+					// project just created
+					refresh = true;
+
+					trace("Scheduling refresh because project "
+							+ newDesc.getProject().getName() + " created");
+				}
+			}
+		}
+
+		if (refresh) {
+			scheduleRefresh();
+		}
+	}
+
+	private List<IProject> getProjectsToCheck() {
+
+		List<IProject> projects = new ArrayList<IProject>();
+
+		synchronized (executablesMap) {
+			// look for any CDT projects not in our cache
+			for (IProject project : ResourcesPlugin.getWorkspace().getRoot()
+					.getProjects()) {
+				if (!executablesMap.containsKey(project)) {
+					if (CoreModel.hasCNature(project)) {
+						projects.add(project);
+					}
+				}
+			}
+		}
+
+		return projects;
 	}
 
-}
\ No newline at end of file
+	private void scheduleRefresh() {
+		trace("scheduleRefresh called at "
+				+ getStringFromTimestamp(System.currentTimeMillis()));
+
+		refreshJob.cancel();
+		refreshJob.schedule();
+	}
+
+	private IProjectExecutablesProvider getExecutablesProviderForProject(
+			IProject project) {
+		IProjectExecutablesProvider provider = executablesProviderMap
+				.get(project);
+		if (provider == null) {
+			// not cached yet. get the list of project natures from the
+			// providers and
+			// pick the one with the closest match
+			try {
+				IProjectDescription description = project.getDescription();
+				int mostNaturesMatched = 0;
+				for (IProjectExecutablesProvider exeProvider : executableProviders) {
+					List<String> natures = exeProvider.getProjectNatures();
+
+					int naturesMatched = 0;
+					for (String nature : description.getNatureIds()) {
+						if (natures.contains(nature)) {
+							naturesMatched++;
+						}
+					}
+
+					if (naturesMatched > mostNaturesMatched) {
+						provider = exeProvider;
+						mostNaturesMatched = naturesMatched;
+					}
+				}
+
+				// cache it
+				executablesProviderMap.put(project, provider);
+
+			} catch (CoreException e) {
+				e.printStackTrace();
+			}
+		}
+
+		return provider;
+	}
+
+	private void loadExecutableProviderExtensions() {
+		executableProviders = Collections
+				.synchronizedList(new ArrayList<IProjectExecutablesProvider>());
+
+		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
+		IExtensionPoint extensionPoint = extensionRegistry
+				.getExtensionPoint(CDebugCorePlugin.PLUGIN_ID
+						+ ".ExecutablesProvider"); //$NON-NLS-1$
+		IExtension[] extensions = extensionPoint.getExtensions();
+
+		for (int i = 0; i < extensions.length; i++) {
+			IExtension extension = extensions[i];
+			IConfigurationElement[] elements = extension
+					.getConfigurationElements();
+			IConfigurationElement element = elements[0];
+
+			boolean failed = false;
+			try {
+				Object extObject = element.createExecutableExtension("class"); //$NON-NLS-1$
+				if (extObject instanceof IProjectExecutablesProvider) {
+					executableProviders
+							.add((IProjectExecutablesProvider) extObject);
+				} else {
+					failed = true;
+				}
+			} catch (CoreException e) {
+				failed = true;
+			}
+
+			if (failed) {
+				CDebugCorePlugin
+						.log("Unable to load ExecutablesProvider extension from "
+								+ extension.getContributor().getName());
+			}
+		}
+	}
+
+	private void loadSoureFileProviderExtensions() {
+		sourceFileProviders = Collections
+				.synchronizedList(new ArrayList<ISourceFilesProvider>());
+
+		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
+		IExtensionPoint extensionPoint = extensionRegistry
+				.getExtensionPoint(CDebugCorePlugin.PLUGIN_ID
+						+ ".SourceFilesProvider"); //$NON-NLS-1$
+		IExtension[] extensions = extensionPoint.getExtensions();
+
+		for (int i = 0; i < extensions.length; i++) {
+			IExtension extension = extensions[i];
+			IConfigurationElement[] elements = extension
+					.getConfigurationElements();
+			IConfigurationElement element = elements[0];
+
+			boolean failed = false;
+			try {
+				Object extObject = element.createExecutableExtension("class"); //$NON-NLS-1$
+				if (extObject instanceof ISourceFilesProvider) {
+					sourceFileProviders.add((ISourceFilesProvider) extObject);
+				} else {
+					failed = true;
+				}
+			} catch (CoreException e) {
+				failed = true;
+			}
+
+			if (failed) {
+				CDebugCorePlugin
+						.log("Unable to load SourceFilesProvider extension from "
+								+ extension.getContributor().getName());
+			}
+		}
+	}
+
+	private void loadSoureRemappingExtensions() {
+		sourceFileRemappings = Collections
+				.synchronizedList(new ArrayList<ISourceFileRemapping>());
+
+		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
+		IExtensionPoint extensionPoint = extensionRegistry
+				.getExtensionPoint(CDebugCorePlugin.PLUGIN_ID
+						+ ".SourceRemappingProvider"); //$NON-NLS-1$
+		IExtension[] extensions = extensionPoint.getExtensions();
+
+		for (int i = 0; i < extensions.length; i++) {
+			IExtension extension = extensions[i];
+			IConfigurationElement[] elements = extension
+					.getConfigurationElements();
+			IConfigurationElement element = elements[0];
+
+			boolean failed = false;
+			try {
+				Object extObject = element.createExecutableExtension("class"); //$NON-NLS-1$
+				if (extObject instanceof ISourceFileRemapping) {
+					sourceFileRemappings.add((ISourceFileRemapping) extObject);
+				} else {
+					failed = true;
+				}
+			} catch (CoreException e) {
+				failed = true;
+			}
+
+			if (failed) {
+				CDebugCorePlugin
+						.log("Unable to load SourceRemappingProvider extension from "
+								+ extension.getContributor().getName());
+			}
+		}
+	}
+
+	private void loadExecutableImporterExtensions() {
+		executableImporters = Collections
+				.synchronizedList(new ArrayList<IExecutableImporter>());
+
+		IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
+		IExtensionPoint extensionPoint = extensionRegistry
+				.getExtensionPoint(CDebugCorePlugin.PLUGIN_ID
+						+ ".ExecutablesImporter"); //$NON-NLS-1$
+		IExtension[] extensions = extensionPoint.getExtensions();
+
+		for (int i = 0; i < extensions.length; i++) {
+			IExtension extension = extensions[i];
+			IConfigurationElement[] elements = extension
+					.getConfigurationElements();
+			IConfigurationElement element = elements[0];
+
+			boolean failed = false;
+			try {
+				Object extObject = element.createExecutableExtension("class"); //$NON-NLS-1$
+				if (extObject instanceof IExecutableImporter) {
+					executableImporters.add((IExecutableImporter) extObject);
+				} else {
+					failed = true;
+				}
+			} catch (CoreException e) {
+				failed = true;
+			}
+
+			if (failed) {
+				CDebugCorePlugin
+						.log("Unable to load ExecutablesImporter extension from "
+								+ extension.getContributor().getName());
+			}
+		}
+	}
+
+	private void trace(String msg) {
+		if (DEBUG) {
+			// TODO use Logger?
+			System.out.println(msg);
+		}
+	}
+
+	private String getStringFromTimestamp(long timestamp) {
+		return DateFormat.getTimeInstance(DateFormat.MEDIUM).format(
+				new Date(timestamp));
+	}
+}
+
+	
\ No newline at end of file
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IExecutableImporter.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IExecutableImporter.java	Thu Jul 30 17:06:37 2009 -0500
@@ -42,6 +42,6 @@
 	/**
 	 * @since 6.0
 	 */
-	public abstract boolean importExecutables(String[] fileNames, IProgressMonitor monitor);
+	public boolean importExecutables(String[] fileNames, IProgressMonitor monitor);
 
-}
\ No newline at end of file
+}
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IExecutablesChangeListener.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IExecutablesChangeListener.java	Thu Jul 30 17:06:37 2009 -0500
@@ -12,9 +12,21 @@
 package org.eclipse.cdt.debug.core.executables;
 
 import java.util.EventListener;
+import java.util.List;
 
 public interface IExecutablesChangeListener extends EventListener {
 
-	public void executablesChanged(IExecutablesChangeEvent event);
+	/**
+	 * Called whenever the list of executables in the workspace changes, e.g. a 
+	 * project was opened/closed/created/deleted
+	 */
+	public void executablesListChanged();
 
-}
\ No newline at end of file
+	/**
+	 * Called whenever some executables have changed, e.g. when a project is rebuilt or
+	 * cleaned.  The content may have changed for example, so the list of source files
+	 * may be different.
+	 * @param executables
+	 */
+	public void executablesChanged(List<Executable> executables);
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/IProjectExecutablesProvider.java	Thu Jul 30 17:06:37 2009 -0500
@@ -0,0 +1,53 @@
+/*******************************************************************************
+ * Copyright (c) 2009 Nokia and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Nokia - Initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.debug.core.executables;
+
+import java.util.List;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+
+/**
+ * IProjectExecutablesProvider supplies a list of executables for a project
+ * to the Executables Manager.
+ * 
+ * @author Warren Paul
+ * 
+ */
+public interface IProjectExecutablesProvider {
+
+	/**
+	 * Get the list of project natures that should be present in projects that
+	 * this provider will get the list of executables for.  Since there could
+	 * be any number of executable providers, the one that matches the given
+	 * project natures the closest will be chosen.
+	 * @return the list of project nature id's
+	 */
+	List<String> getProjectNatures();	
+	
+	/**
+	 * Get the list of executables for the given project
+	 * @param project the project to get the executables for
+	 * @param monitor progress monitor
+	 * @return the list of executables (which may be empty)
+	 */
+	List<Executable> getExecutables(IProject project, IProgressMonitor monitor);
+
+	/**
+	 * Remove the given executable.  Note that the project can be obtained from Executable.
+	 * @param executable the executable to remove
+	 * @param monitor progress monitor
+	 * @return the status of the remove operation
+	 */
+	IStatus removeExecutable(Executable executable, IProgressMonitor monitor);
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/executables/StandardExecutableProvider.java	Thu Jul 30 17:06:37 2009 -0500
@@ -0,0 +1,88 @@
+/*******************************************************************************
+ * Copyright (c) 2008 Nokia and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Nokia - Initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.cdt.debug.core.executables;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.cdt.core.CCProjectNature;
+import org.eclipse.cdt.core.CProjectNature;
+import org.eclipse.cdt.core.model.CModelException;
+import org.eclipse.cdt.core.model.IBinary;
+import org.eclipse.cdt.core.model.ICProject;
+import org.eclipse.cdt.debug.core.CDebugCorePlugin;
+import org.eclipse.cdt.internal.core.model.CModelManager;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.SubMonitor;
+import org.eclipse.debug.core.DebugPlugin;
+
+public class StandardExecutableProvider implements IProjectExecutablesProvider {
+
+	List<String> supportedNatureIds = new ArrayList<String>();
+	
+	public StandardExecutableProvider() {
+		supportedNatureIds.add(CProjectNature.C_NATURE_ID);
+		supportedNatureIds.add(CCProjectNature.CC_NATURE_ID);
+	}
+	
+	public List<String> getProjectNatures() {
+		return supportedNatureIds;
+	}
+
+	public List<Executable> getExecutables(IProject project, IProgressMonitor monitor) {
+		List<Executable> executables = new ArrayList<Executable>();
+		
+		ICProject cproject = CModelManager.getDefault().create(project);
+		try {
+			IBinary[] binaries = cproject.getBinaryContainer().getBinaries();
+
+			SubMonitor progress = SubMonitor.convert(monitor, binaries.length);
+
+			for (IBinary binary : binaries) {
+				if (progress.isCanceled()) {
+					break;
+				}
+
+				if (binary.isExecutable() || binary.isSharedLib()) {
+					IPath exePath = binary.getResource().getLocation();
+					if (exePath == null)
+						exePath = binary.getPath();
+					executables.add(new Executable(exePath, project, binary.getResource()));
+				}
+				
+				progress.worked(1);
+			}
+		} catch (CModelException e) {
+		}
+		
+		return executables;
+	}
+
+	public IStatus removeExecutable(Executable executable, IProgressMonitor monitor) {
+		IResource exeResource = executable.getResource();
+		if (exeResource != null) {
+			try {
+				exeResource.delete(true, monitor);
+			} catch (CoreException e) {
+				DebugPlugin.log( e );
+			}
+			return Status.OK_STATUS;
+		}
+		return new Status(IStatus.WARNING, CDebugCorePlugin.PLUGIN_ID, "Can't remove " + executable.getName() + ": it is built by project \"" + executable.getProject().getName() + "\"");
+	}
+}
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/executables/ExecutablesChangeEvent.java	Thu Jul 30 14:41:10 2009 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2008 Nokia and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Nokia - Initial API and implementation
- *******************************************************************************/
-package org.eclipse.cdt.debug.internal.core.executables;
-
-import org.eclipse.cdt.debug.core.executables.Executable;
-import org.eclipse.cdt.debug.core.executables.IExecutablesChangeEvent;
-import org.eclipse.core.runtime.PlatformObject;
-
-public class ExecutablesChangeEvent extends PlatformObject implements IExecutablesChangeEvent {
-
-	private Executable[] oldExecutables;
-	private Executable[] newExecutables;
-
-	public ExecutablesChangeEvent(Executable[] oldList, Executable[] newList) {
-		oldExecutables = oldList;
-		newExecutables = newList;
-	}
-
-	public Executable[] getCurrentExecutables() {
-		return newExecutables;
-	}
-
-	public Executable[] getPreviousExecutables() {
-		return oldExecutables;
-	}
-
-}
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/internal/core/executables/StandardExecutableProvider.java	Thu Jul 30 14:41:10 2009 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,194 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2008 Nokia and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Nokia - Initial API and implementation
- *******************************************************************************/
-
-package org.eclipse.cdt.debug.internal.core.executables;
-
-import java.util.ArrayList;
-
-import org.eclipse.cdt.core.model.CModelException;
-import org.eclipse.cdt.core.model.CoreModel;
-import org.eclipse.cdt.core.model.IBinary;
-import org.eclipse.cdt.core.model.ICProject;
-import org.eclipse.cdt.core.settings.model.CProjectDescriptionEvent;
-import org.eclipse.cdt.core.settings.model.ICProjectDescription;
-import org.eclipse.cdt.core.settings.model.ICProjectDescriptionListener;
-import org.eclipse.cdt.debug.core.CDebugCorePlugin;
-import org.eclipse.cdt.debug.core.executables.Executable;
-import org.eclipse.cdt.debug.core.executables.ExecutablesManager;
-import org.eclipse.cdt.debug.core.executables.IExecutableProvider;
-import org.eclipse.cdt.internal.core.model.CModelManager;
-import org.eclipse.core.resources.IProject;
-import org.eclipse.core.resources.IResource;
-import org.eclipse.core.resources.IResourceChangeEvent;
-import org.eclipse.core.resources.IResourceChangeListener;
-import org.eclipse.core.resources.IResourceDelta;
-import org.eclipse.core.resources.IResourceDeltaVisitor;
-import org.eclipse.core.resources.IWorkspaceRoot;
-import org.eclipse.core.resources.ResourcesPlugin;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IPath;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.debug.core.DebugPlugin;
-
-public class StandardExecutableProvider implements IResourceChangeListener, ICProjectDescriptionListener, IExecutableProvider {
-
-	private ArrayList<Executable> executables = new ArrayList<Executable>();
-
-	public StandardExecutableProvider() {
-		ResourcesPlugin.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.POST_CHANGE);
-		CoreModel.getDefault().getProjectDescriptionManager().addCProjectDescriptionListener(this,
-				CProjectDescriptionEvent.DATA_APPLIED | CProjectDescriptionEvent.LOADED);
-	}
-
-	public void resourceChanged(IResourceChangeEvent event) {
-
-		// refresh when projects are opened or closed. note that deleted
-		// projects are handled later
-		// in this method. new projects are handled in handleEvent.
-		// resource changed events always start at the workspace root, so
-		// projects
-		// are the next level down
-		IResourceDelta[] projects = event.getDelta().getAffectedChildren();
-		for (IResourceDelta projectDelta : projects) {
-			if ((projectDelta.getFlags() & IResourceDelta.OPEN) != 0) {
-				if (projectDelta.getKind() == IResourceDelta.CHANGED) {
-					// project was opened or closed
-					ExecutablesManager.getExecutablesManager().scheduleRefresh(this, 0);
-					return;
-				}
-			}
-		}
-
-		try {
-			final StandardExecutableProvider provider = this;
-			event.getDelta().accept(new IResourceDeltaVisitor() {
-
-				public boolean visit(IResourceDelta delta) throws CoreException {
-					if (delta.getKind() == IResourceDelta.ADDED || delta.getKind() == IResourceDelta.REMOVED) {
-						IResource deltaResource = delta.getResource();
-						if (deltaResource != null) {
-							boolean refresh = false;
-							if (delta.getKind() == IResourceDelta.REMOVED && deltaResource instanceof IProject) {
-								// project deleted
-								refresh = true;
-							} else {
-								// see if a binary has been added/removed
-								IPath resourcePath = delta.getResource().getLocation();
-								if (resourcePath != null && Executable.isExecutableFile(resourcePath)) {
-									refresh = true;
-								}
-							}
-							if (refresh) {
-								ExecutablesManager.getExecutablesManager().scheduleRefresh(provider, 0);
-								return false;
-							}
-						}
-					}
-					return true;
-				}
-			});
-		} catch (CoreException e) {
-		}
-	}
-
-	public void handleEvent(CProjectDescriptionEvent event) {
-		// this handles the cases where the active build configuration changes,
-		// and when new
-		// projects are created.
-		boolean refresh = false;
-
-		int eventType = event.getEventType();
-
-		if (eventType == CProjectDescriptionEvent.DATA_APPLIED) {
-			// see if the active build config has changed
-			ICProjectDescription newDesc = event.getNewCProjectDescription();
-			ICProjectDescription oldDesc = event.getOldCProjectDescription();
-			if (oldDesc != null && newDesc != null) {
-				String newConfigName = newDesc.getActiveConfiguration().getName();
-				String oldConfigName = oldDesc.getActiveConfiguration().getName();
-				refresh = (!newConfigName.equals(oldConfigName));
-			} else if (newDesc != null && oldDesc == null) {
-				// project just created
-				refresh = true;
-			}
-		}
-
-		if (refresh) {
-			ExecutablesManager.getExecutablesManager().scheduleRefresh(this, 0);
-		}
-	}
-
-	public Executable[] getExecutables(IProgressMonitor monitor) {
-		synchronized (executables) {
-			executables.clear();
-
-			IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
-			IProject[] projects = root.getProjects();
-
-			monitor.beginTask("Checking C/C++ Projects", projects.length);
-
-			for (IProject project : projects) {
-
-				if (monitor.isCanceled())
-					break;
-
-				try {
-					if (CoreModel.hasCNature(project)) {
-						CModelManager manager = CModelManager.getDefault();
-						ICProject cproject = manager.create(project);
-						try {
-							IBinary[] binaries = cproject.getBinaryContainer().getBinaries();
-							for (IBinary binary : binaries) {
-								if (binary.isExecutable() || binary.isSharedLib()) {
-									IPath exePath = binary.getResource().getLocation();
-									if (exePath == null)
-										exePath = binary.getPath();
-									Executable exe = new Executable(exePath, project, binary.getResource());
-									executables.add(exe);
-								}
-							}
-						} catch (CModelException e) {
-						}
-					}
-				} catch (Exception e) {
-					DebugPlugin.log( e );
-				}
-				monitor.worked(1);
-			}
-			monitor.done();
-		}
-		return executables.toArray(new Executable[executables.size()]);
-	}
-
-	public int getPriority() {
-		return NORMAL_PRIORITY;
-	}
-
-	public IStatus removeExecutable(Executable executable, IProgressMonitor monitor) {
-		IResource exeResource = executable.getResource();
-		if (exeResource != null)
-		{
-			if (exeResource.isLinked())
-			{
-				try {
-					exeResource.delete(true, monitor);
-				} catch (CoreException e) {
-					DebugPlugin.log( e );
-				}				
-			}
-			return Status.OK_STATUS;
-		}
-		return new Status(IStatus.WARNING, CDebugCorePlugin.PLUGIN_ID, "Can't remove " + executable.getName() + ": it is built by project \"" + executable.getProject().getName() + "\"");
-	}
-
-}
\ No newline at end of file
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesContentProvider.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesContentProvider.java	Thu Jul 30 17:06:37 2009 -0500
@@ -17,9 +17,6 @@
 import org.eclipse.cdt.debug.core.executables.Executable;
 import org.eclipse.cdt.debug.core.executables.ExecutablesManager;
 import org.eclipse.core.runtime.IPath;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.jface.viewers.ColumnLabelProvider;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.ITreeContentProvider;
@@ -29,10 +26,7 @@
 
 class ExecutablesContentProvider extends ColumnLabelProvider implements IStructuredContentProvider, ITreeContentProvider {
 
-	private TreeViewer viewer;
-
 	public ExecutablesContentProvider(TreeViewer viewer) {
-		this.viewer = viewer;
 	}
 
 	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
@@ -43,42 +37,8 @@
 
 	public Object[] getElements(final Object inputElement) {
 		if (inputElement instanceof ExecutablesManager) {
-			final ExecutablesManager em = (ExecutablesManager) inputElement;
-			if (em.refreshNeeded()) {
-				// do this asynchronously. just return an empty array
-				// immediately, and then refresh the view
-				// once the list of executables has been calculated. this can
-				// take a while and we don't want
-				// to block the UI.
-				Job refreshJob = new Job(Messages.ExecutablesContentProvider_FetchingExecutables) {
-
-					@Override
-					protected IStatus run(IProgressMonitor monitor) {
-						IStatus status = em.refreshExecutables(monitor);
-
-						// Are we in the UIThread? If so spin it until we are done
-						if (!viewer.getControl().isDisposed()) {
-							if (viewer.getControl().getDisplay().getThread() == Thread.currentThread()) {
-								viewer.refresh(inputElement);
-							} else {
-								viewer.getControl().getDisplay().asyncExec(new Runnable() {
-									public void run() {
-										viewer.refresh(inputElement);
-									}
-								});
-							}
-						}
-
-						monitor.done();
-						return status;
-					}
-				};
-
-				refreshJob.schedule();
-
-			} else {
-				return em.getExecutables();
-			}
+			ExecutablesManager em = (ExecutablesManager) inputElement;
+			return em.getExecutables().toArray();
 		}
 		return new Object[] {};
 	}
@@ -140,4 +100,4 @@
 		return new Object[] {};
 	}
 
-}
\ No newline at end of file
+}
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesView.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesView.java	Thu Jul 30 17:06:37 2009 -0500
@@ -271,6 +271,10 @@
 			public void selectionChanged(SelectionChangedEvent event) {
 				ISelection newSelection = event.getSelection();
 				if (newSelection instanceof IStructuredSelection) {
+					
+					// update the remove action
+					removeAction.setEnabled(!newSelection.isEmpty());
+					
 					final Object firstElement = ((IStructuredSelection) newSelection).getFirstElement();
 					
 					Job setectExeJob = new Job(Messages.ExecutablesView_Select_Executable) {
@@ -281,20 +285,19 @@
 								Executable executable = (Executable)firstElement;
 								this.setName(Messages.ExecutablesView_Finding_Sources_Job_Name + executable.getName());
 								executable.getSourceFiles(monitor);
-							}
-							UIJob selectExeUIJob = new UIJob(Messages.ExecutablesView_Select_Executable){
-								@Override
-								public IStatus runInUIThread(IProgressMonitor monitor) {
-									sourceFilesViewer.setInput(firstElement);
-									if (firstElement instanceof Executable) {
+
+								UIJob selectExeUIJob = new UIJob(Messages.ExecutablesView_Select_Executable){
+									@Override
+									public IStatus runInUIThread(IProgressMonitor monitor) {
+										sourceFilesViewer.setInput(firstElement);
 										sourceFilesViewer.packColumns();
-									}
-									return Status.OK_STATUS;
-								}};
+										return Status.OK_STATUS;
+									}};
 								selectExeUIJob.schedule();								
-								return Status.OK_STATUS;
+							}
+							return Status.OK_STATUS;
 						}};
-						setectExeJob.schedule();
+					setectExeJob.schedule();
 				}
 			}
 		});
@@ -360,6 +363,7 @@
 
 	private Action createRemoveAction() {
 		Action action = new Action("Remove") {
+			
 			public void run() {				
 				ISelection selection = getExecutablesViewer().getSelection();
 				if (selection instanceof IStructuredSelection)
@@ -404,7 +408,7 @@
 		action.setToolTipText("Remove the selected executables");
 		action.setImageDescriptor(ExecutablesView.DESC_REMOVE);
 		action.setDisabledImageDescriptor(ExecutablesView.DESC_REMOVE_DISABLED);
-		action.setEnabled(true);
+		action.setEnabled(false);
 		return action;
 	}
 
@@ -460,7 +464,7 @@
 	private Action createRefreshAction() {
 		Action action = new Action(Messages.ExecutablesView_Refresh) {
 			public void run() {
-				ExecutablesManager.getExecutablesManager().scheduleRefresh(null, 0);
+				ExecutablesManager.getExecutablesManager().refresh(null);
 			}
 		};
 		action.setToolTipText(Messages.ExecutablesView_RefreshList);
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesViewer.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/ExecutablesViewer.java	Thu Jul 30 17:06:37 2009 -0500
@@ -10,9 +10,9 @@
  *******************************************************************************/
 package org.eclipse.cdt.debug.internal.ui.views.executables;
 
+import java.util.List;
 import org.eclipse.cdt.debug.core.executables.Executable;
 import org.eclipse.cdt.debug.core.executables.ExecutablesManager;
-import org.eclipse.cdt.debug.core.executables.IExecutablesChangeEvent;
 import org.eclipse.cdt.debug.core.executables.IExecutablesChangeListener;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
@@ -166,39 +166,50 @@
 		return new ExecutablesViewerComparator(sortType, column_sort_order[sortType]);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see org.eclipse.cdt.debug.core.executables.IExecutablesChangeListener#executablesChanged(org.eclipse.cdt.debug.core.executables.IExecutablesChangeEvent)
-	 */
-	public void executablesChanged(IExecutablesChangeEvent event) {
-		// Executables have changed so refresh the view.
-		final ExecutablesViewer viewer = this;
-		UIJob refreshJob = new UIJob(Messages.ExecutablesViewer_RefreshExecutablesView) {
+	public void executablesChanged(final List<Executable> executables) {
+			// some executables have been updated.  if one of them is currently
+			// selected, we need to update the source file list
+			UIJob refreshJob = new UIJob(Messages.ExecutablesViewer_RefreshExecutablesView) {
+	
+				@Override
+				public IStatus runInUIThread(IProgressMonitor monitor) {
+					// if the user has selected an executable, they expect its
+					// list of source files to be refreshed automatically
+					if (getSelection() != null &&
+						getSelection() instanceof IStructuredSelection) {
+						IStructuredSelection selection = (IStructuredSelection)getSelection();
+						
+						Object firstElement = selection.getFirstElement();
+						if (firstElement instanceof Executable) {
+							Executable executable = (Executable) firstElement;
+							if (executables.contains(executable)) {
+								executable.setRefreshSourceFiles(true);
+								setSelection(selection);
+							}
+						}
+					}
+					return Status.OK_STATUS;
+				}
+			};
+			refreshJob.schedule();
+		}
+	
+	public void executablesListChanged() {
+		// Executables list has changed so refresh the view.
+		UIJob refreshJob = new UIJob(
+				Messages.ExecutablesViewer_RefreshExecutablesView) {
 
 			@Override
 			public IStatus runInUIThread(IProgressMonitor monitor) {
-				// if the user has selected an executable, they expect its
-				// list of source files to be refreshed automatically
-				if (viewer.getSelection() != null &&
-					viewer.getSelection() instanceof IStructuredSelection) {
-					IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
-					
-					Object firstElement = selection.getFirstElement();
-					if (firstElement instanceof Executable) {
-						Executable executable = (Executable)firstElement;
-						executable.setRefreshSourceFiles(true);
-						viewer.setSelection(selection);
-					}
-				}
-				viewer.refresh(null);
-				viewer.packColumns();
+				refresh(null);
+				packColumns();
 				return Status.OK_STATUS;
 			}
 		};
 		refreshJob.schedule();
 	}
 
+
 	@Override
 	protected String getColumnOrderKey() {
 		return P_COLUMN_ORDER_KEY_EXE;
--- a/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/SourceFilesLabelProvider.java	Thu Jul 30 14:41:10 2009 -0500
+++ b/cdt/cdt_6_0_x/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/executables/SourceFilesLabelProvider.java	Thu Jul 30 17:06:37 2009 -0500
@@ -70,7 +70,7 @@
 			if (cell.getElement() instanceof ITranslationUnit) {
 				Executable executable = (Executable) viewer.getInput();
 				Path path = new Path(executable.getOriginalLocation((ITranslationUnit) cell.getElement()));
-				cell.setText(executable.getOriginalLocation((ITranslationUnit) cell.getElement()));
+				cell.setText(path.toOSString());
 				if (path.toFile().exists())
 					cell.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 				else