Merge remote-tracking branch 'cdt/master' into sd90

build/org.eclipse.cdt.managedbuilder.core.tests/suite/org/eclipse/cdt/managedbuilder/tests/suite/AllManagedBuildTests.java

@@ -27,6 +27,7 @@ import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildCoreTests;
 import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildCoreTests20;
 import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildCoreTests_SharedToolOptions;
 import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildDependencyCalculatorTests;
+import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildDependencyLibsTests;
 import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildEnvironmentTests;
 import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildMacrosTests;
 import org.eclipse.cdt.managedbuilder.core.tests.ManagedBuildTCSupportedTest;
@@ -63,6 +64,7 @@ public class AllManagedBuildTests {
 		suite.addTestSuite(GCCBuiltinSpecsDetectorTest.class);
 
 		// managedbuilder.core.tests
+		suite.addTest(ManagedBuildDependencyLibsTests.suite());
 		suite.addTest(ManagedBuildCoreTests20.suite());
 		suite.addTest(ManagedBuildCoreTests.suite());
 		suite.addTest(ManagedProjectUpdateTests.suite());

build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/core/tests/ManagedBuildDependencyLibsTests.java

@@ -0,0 +1,294 @@
+/*******************************************************************************
+ * Copyright (c) 2011 QNX Software Systems 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:
+ *     QNX Software Systems - Initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.managedbuilder.core.tests;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+import org.eclipse.cdt.core.model.CoreModel;
+import org.eclipse.cdt.core.settings.model.ICProjectDescription;
+import org.eclipse.cdt.managedbuilder.core.IBuilder;
+import org.eclipse.cdt.managedbuilder.core.IConfiguration;
+import org.eclipse.cdt.managedbuilder.core.IManagedBuildInfo;
+import org.eclipse.cdt.managedbuilder.core.IToolChain;
+import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
+import org.eclipse.cdt.managedbuilder.internal.core.FolderInfo;
+import org.eclipse.cdt.managedbuilder.tcmodification.IConfigurationModification;
+import org.eclipse.cdt.managedbuilder.tcmodification.IToolChainModificationManager;
+import org.eclipse.cdt.managedbuilder.testplugin.ManagedBuildTestHelper;
+import org.eclipse.core.resources.IContainer;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IFolder;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IWorkspaceDescription;
+import org.eclipse.core.resources.IncrementalProjectBuilder;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+
+public class ManagedBuildDependencyLibsTests extends TestCase {
+	private static final String PROJ_PATH = "depLibsProjects";
+	private static final String MESSAGE_TAIL = " (see .log file for more details).";
+
+	private IProject fTapp, fTlib, fTobjs;
+
+	private IToolChain[] allToolChains;
+	
+	public ManagedBuildDependencyLibsTests(String name) {
+		super(name);
+	}
+
+	public static Test suite() {
+		TestSuite suite = new TestSuite(ManagedBuildDependencyLibsTests.class.getName());
+		
+		suite.addTest(new ManagedBuildDependencyLibsTests("testDepLibs"));
+		suite.addTest(new ManagedBuildDependencyLibsTests("testDepUObjs"));
+		return suite;
+	}
+
+	private void buildProject(IProject curProject) {	
+		
+		IManagedBuildInfo info = ManagedBuildManager.getBuildInfo(curProject);
+		try {
+			IProject[] referencedProjects = curProject.getReferencedProjects();
+			for(int i = 0; i < referencedProjects.length; ++i)
+				buildProject(referencedProjects[i]);
+		
+			// Build the project in order to generate the makefiles 
+			curProject.build(IncrementalProjectBuilder.INCREMENTAL_BUILD,new NullProgressMonitor());
+		}
+		catch(CoreException e){
+			fail(e.getStatus().getMessage());
+		}
+		catch(OperationCanceledException e){
+			fail("the project \"" + curProject.getName() + "\" build was cancelled, exception message: " + e.getMessage());
+		}
+		
+		
+	}
+
+
+
+	@Override
+	protected void setUp() throws Exception {
+		super.setUp();
+		allToolChains = ManagedBuildManager.
+		getRealToolChains();		
+		IWorkspaceDescription wsDescription =	ResourcesPlugin.getWorkspace().getDescription();
+		wsDescription.setAutoBuilding(false);
+		ResourcesPlugin.getWorkspace().setDescription(wsDescription);
+		assertNotNull("Cannot create tapp project", 
+				fTapp = ManagedBuildTestHelper.loadProject("tapp", PROJ_PATH));
+		assertNotNull("Cannot create tlib project", 
+				fTlib = ManagedBuildTestHelper.loadProject("tlib", PROJ_PATH));
+		assertNotNull("Cannot create tobjs project", 
+				fTobjs = ManagedBuildTestHelper.loadProject("tobjs", PROJ_PATH));
+		IProjectDescription projDescription = fTapp.getDescription();
+		projDescription.setReferencedProjects(new IProject[] 
+			{fTlib, fTobjs});
+		fTapp.setDescription(projDescription, new NullProgressMonitor());
+		IToolChain toolChain = setToolChain(fTapp, null);
+		assertNotNull("No compatible tool chain.", toolChain);
+		setToolChain(fTlib, toolChain);
+		setToolChain(fTobjs, toolChain);
+	}
+
+	@Override
+	protected void tearDown() throws Exception {
+		super.tearDown();
+		ManagedBuildTestHelper.removeProject(fTapp.getName());
+		ManagedBuildTestHelper.removeProject(fTlib.getName());
+		ManagedBuildTestHelper.removeProject(fTobjs.getName());
+	}
+	
+	private void deleteFiles(IFolder dir, String pattern, IProgressMonitor monitor) {
+		List<IFile> files = new ArrayList<IFile>();
+		findFiles(dir, pattern, files);
+		for(Iterator<IFile>  i = files.iterator(); i.hasNext(); ) {
+			IFile file = i.next();
+			try {
+				file.delete(true, monitor);
+			} catch (CoreException e) {
+				e.printStackTrace();
+				fail("Error deleting file " + file.getFullPath().toString() + '.' + MESSAGE_TAIL);
+			}
+		}
+	}
+
+	private void findFiles(IResource dir, String pattern,  List<IFile> files) {
+		IResource resource = null;
+		try {
+			IResource[] members;
+			if(dir instanceof IContainer)
+				members = ((IContainer)dir).members(IFolder.INCLUDE_PHANTOMS);
+			else
+			if(dir instanceof IFolder)
+				members = ((IFolder)dir).members(IFolder.INCLUDE_PHANTOMS);
+			else // Not possible
+				return; 
+			for(int i = 0; i < members.length; ++i) {
+				resource = members[i];
+				if(resource.getType() == IResource.FOLDER)
+					findFiles((IFolder)resource, pattern, files);
+				else {
+					if(resource.getName().matches(pattern)) 
+						files.add((IFile)resource);
+				}
+			}
+		} catch (CoreException e) {
+			e.printStackTrace();
+			fail("Error while collecting files." + MESSAGE_TAIL);
+		}
+	}
+	
+	private IToolChain setToolChain(IProject project, IToolChain setTo) {
+		try {
+			IConfiguration cfg = getProjectConfiguration(project);
+			IToolChain currentToolChain = cfg.getToolChain();
+
+			IToolChainModificationManager mngr = 
+				ManagedBuildManager.getToolChainModificationManager();
+			IConfigurationModification cfgM = 
+				(IConfigurationModification)mngr.
+					createModification(cfg.getRootFolderInfo());
+			FolderInfo folderInfo = (FolderInfo)cfg.getRootFolderInfo();
+			
+			if(setTo == null) {
+				for(int i = 0; i < allToolChains.length; ++i) {
+					// If predefined tool chain supported, leave it alone
+					if(allToolChains[i].equals(currentToolChain))
+						return currentToolChain;
+					// In the same loop try to find compatible tool chain
+					if(setTo == null) {
+						IBuilder builder = allToolChains[i].getBuilder(); 
+						if(cfg.isBuilderCompatible(builder) && 
+								folderInfo.isToolChainCompatible(allToolChains[i]))
+						setTo = allToolChains[i];
+					}					
+				}
+			}
+			if(null != setTo) {
+				cfgM.setToolChain(setTo);
+				assertEquals(setTo, cfgM.getToolChain());
+				assertEquals(setTo.getBuilder(), cfgM.getBuilder());
+			}
+		} catch (CoreException e) {
+			e.printStackTrace();
+			fail("Error. " + MESSAGE_TAIL); 
+		}
+		return setTo;
+	}
+
+	private IConfiguration getProjectConfiguration(IProject project) throws CoreException {
+		ICProjectDescription cProjDescription = CoreModel.getDefault().
+			createProjectDescription(project, true);
+		return   ManagedBuildManager.
+			getConfigurationForDescription(
+				cProjDescription.getConfigurations()[0]);
+		
+	}
+	
+	private void rebuildArtefact(IProject project) {
+//		deleteFiles(getProjectFolder(project), 
+//				getArtefactFullName(project),  
+//				new NullProgressMonitor());
+		try {
+			project.build(IncrementalProjectBuilder.CLEAN_BUILD, new NullProgressMonitor());
+		} catch (CoreException e) {
+			e.printStackTrace();
+			fail("Cannot clean project " + fTapp.getName() + '.' + MESSAGE_TAIL);
+		}
+		buildProject(project);
+	}
+	
+	private long getArtifactTimeStamp(IProject project) {
+		List<IFile> files = new ArrayList<IFile>();
+		findFiles(project,	getArtefactFullName(project), files);
+		if(files.size() == 0) // File not exists
+			return 0;
+		IFile artefact = files.iterator().next();
+		return artefact.getModificationStamp();
+	}
+
+	private String getArtefactFullName(IProject project) {
+		IConfiguration cfg = null;
+		try {
+			cfg = getProjectConfiguration(project);
+		} catch (CoreException e) {
+			e.printStackTrace();
+			fail("Error. " + MESSAGE_TAIL); 
+		}
+		String name = cfg.getArtifactName();
+		String ext = cfg.getArtifactExtension();
+		if((null != ext) && (ext.length() > 0)) {
+			name += '.';
+			name += ext;
+		}
+		return name;
+	}
+	
+	
+	public void testDepLibs() {
+		buildProject(fTapp);
+		long timeStamp = getArtifactTimeStamp(fTapp);
+		if(timeStamp == 0) {
+			fail("Cannot build project " + fTapp.getName());
+		}
+		try { // To be sure that in case of build the time should be changed
+			Thread.sleep(1000);
+		} catch (InterruptedException e) {
+			// Do nothing
+		} 
+		// Check if no build any more
+		buildProject(fTapp);
+		if(timeStamp != getArtifactTimeStamp(fTapp)) {
+			fail("Error. This time it should be nothing to build");
+		}
+		rebuildArtefact(fTlib);
+		buildProject(fTapp);
+		if(timeStamp == getArtifactTimeStamp(fTapp)) {
+			fail("Error. This time it should build application.");
+		}
+	}
+	
+	public void testDepUObjs() {
+		buildProject(fTapp);
+		long timeStamp = getArtifactTimeStamp(fTapp);
+		if(timeStamp == 0) {
+			fail("Cannot build project " + fTapp.getName());
+		}
+		try { // To be sure that in case of build the time should be changed
+			Thread.sleep(1000);
+		} catch (InterruptedException e) {
+			// Do nothing
+		} 
+		// Check if no build any more
+		buildProject(fTapp);
+		if(timeStamp != getArtifactTimeStamp(fTapp)) {
+			fail("Error. This time it should be nothing to build");
+		}
+//		deleteFiles(getProjectFolder(fTobjs), "*.o", new NullProgressMonitor());
+		rebuildArtefact(fTobjs);
+		buildProject(fTapp);
+		if(timeStamp == getArtifactTimeStamp(fTapp)) {
+			fail("Error. This time it should build application.");
+		}
+	}
+}

build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/AdditionalInput.java

@@ -11,17 +11,51 @@
  *******************************************************************************/
 package org.eclipse.cdt.managedbuilder.internal.core;
 
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.cdt.core.cdtvariables.CdtVariableException;
 import org.eclipse.cdt.core.settings.model.ICStorageElement;
 import org.eclipse.cdt.core.settings.model.util.CDataUtil;
 import org.eclipse.cdt.internal.core.SafeStringInterner;
+import org.eclipse.cdt.managedbuilder.core.BuildException;
 import org.eclipse.cdt.managedbuilder.core.IAdditionalInput;
+import org.eclipse.cdt.managedbuilder.core.IBuildObject;
+import org.eclipse.cdt.managedbuilder.core.IBuilder;
+import org.eclipse.cdt.managedbuilder.core.IConfiguration;
+import org.eclipse.cdt.managedbuilder.core.IFileInfo;
 import org.eclipse.cdt.managedbuilder.core.IInputType;
 import org.eclipse.cdt.managedbuilder.core.IManagedConfigElement;
+import org.eclipse.cdt.managedbuilder.core.IOption;
+import org.eclipse.cdt.managedbuilder.core.IOutputType;
+import org.eclipse.cdt.managedbuilder.core.ITool;
+import org.eclipse.cdt.managedbuilder.core.IToolChain;
+import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
+import org.eclipse.cdt.managedbuilder.core.ManagedBuilderCorePlugin;
+import org.eclipse.cdt.managedbuilder.internal.macros.BuildMacroProvider;
+import org.eclipse.cdt.managedbuilder.internal.macros.IMacroContextInfo;
+import org.eclipse.cdt.managedbuilder.internal.macros.OptionContextData;
+import org.eclipse.cdt.managedbuilder.macros.BuildMacroException;
+import org.eclipse.cdt.managedbuilder.macros.IBuildMacroProvider;
+import org.eclipse.cdt.utils.cdtvariables.CdtVariableResolver;
+import org.eclipse.cdt.utils.cdtvariables.SupplierBasedCdtVariableSubstitutor;
+import org.eclipse.core.filesystem.EFS;
+import org.eclipse.core.filesystem.IFileStore;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.Path;
 
 public class AdditionalInput implements IAdditionalInput {
 
 	private static final String EMPTY_STRING = new String();
 
+	private static final String BUILD_VARIABLE_STATIC_LIB = "ARCHIVES"; //$NON-NLS-1$
+	private static final String BUILD_VARIABLE_SHARED_LIB = "LIBRARIES"; //$NON-NLS-1$
+	
+	private String[] expandedNames;
+
 	//  Superclass
 	//  Parent and children
 	private IInputType fParent;
@@ -295,9 +329,311 @@ public class AdditionalInput implements IAdditionalInput {
 			fResolved = true;
 		}
 	}
+	
+	public boolean needsRebuild() {
+		// This shouldn't be called for an extension AdditionalInput
+		if (fIsExtensionAdditionalInput)
+			return false;
+		if (fRebuildState)
+			return fRebuildState;
+		if (fKind.intValue() == IAdditionalInput.KIND_ADDITIONAL_DEPENDENCY
+				|| fKind.intValue() == IAdditionalInput.KIND_ADDITIONAL_INPUT_DEPENDENCY
+				|| isLibrariesInput()) {
+			IToolChain toolChain = getToolChain();
+			if (!toolChain.isExtensionElement()) {
+				long artifactTimeStamp = getArtifactTimeStamp(toolChain);
+				if (0 != artifactTimeStamp) {
+					String[] paths = getPaths();
+					for (int i = 0; i < paths.length; ++i) {
+						if (paths[i].length() == 0)
+							continue;
+						if (dependencyChanged(paths[i], artifactTimeStamp))
+							return true;
+					}
+				}
+			}
+		}
+		return false;
+	}
+	
+	private long getArtifactTimeStamp(IToolChain toolChain) {
+		IBuilder builder = toolChain.getBuilder();
+		IConfiguration configuration = toolChain.getParent();
+		URI buildLocationURI = ManagedBuildManager.getBuildLocationURI(configuration, builder);
+		if (buildLocationURI != null) {
+			if (!buildLocationURI.toString().endsWith("/")) { //$NON-NLS-1$
+				// ensure that it's a directory URI
+				buildLocationURI = URI.create(buildLocationURI.toString() + "/"); //$NON-NLS-1$
+			}
+			
+			String artifactName = configuration.getArtifactName();
+			String artifactExt = configuration.getArtifactExtension();
+			String artifactPref = configuration.getOutputPrefix(artifactExt);
+			if (artifactName.length() > 0) {
+				if (artifactExt.length() > 0)
+					artifactName += "." + artifactExt; //$NON-NLS-1$
+				if (artifactPref.length() > 0)
+					artifactName = artifactPref + artifactName;
+				try {
+					artifactName = ManagedBuildManager.getBuildMacroProvider().resolveValue(artifactName, "", //$NON-NLS-1$
+							" ", IBuildMacroProvider.CONTEXT_CONFIGURATION, configuration); //$NON-NLS-1$
+				} catch (BuildMacroException e) {
+				}
+				
+				URI buildArtifactURI = buildLocationURI.resolve(artifactName);
+				
+				try {
+					IFileStore artifact = EFS.getStore(buildArtifactURI);
+					org.eclipse.core.filesystem.IFileInfo info = (artifact == null) ? null : artifact.fetchInfo();
+					if ((info != null) && info.exists()) {
+						return info.getLastModified();
+					}
+				} catch (CoreException e) {
+					// if we can't even inquire about it, then assume it doesn't exist
+				}
+			}
+		}
+		return 0;
+	}
 
-	public boolean needsRebuild(){
-		return fRebuildState;
+	private boolean isLibrariesInput() {
+		// libraries are of the "additionalinput" kind, not "additionalinputdependency" because otherwise the
+		// external make builder would generate makefiles with $(LIBS) in the dependency list, resulting in
+		// failure to build dependency -lxyz etc.
+		return (fKind.intValue() == IAdditionalInput.KIND_ADDITIONAL_INPUT && Arrays.asList(getPaths()).contains("$(LIBS)")); //$NON-NLS-1$
+	}
+	
+	private boolean dependencyChanged(String sPath, long artefactTimeStamp) {
+		try {
+			IToolChain toolChain = getToolChain();
+			IConfiguration configuration = toolChain.getParent();
+			if (fIsDirty || (null == expandedNames)) {
+				if ("$(LIBS)".equals(sPath)) //$NON-NLS-1$
+					expandedNames = getDepLibs();
+				else if ("$(USER_OBJS)".equals(sPath)) //$NON-NLS-1$
+					expandedNames = getDepObjs(configuration);
+				else {
+					expandedNames = getDepFiles(sPath);
+				}
+			}
+			for (int j = 0; j < expandedNames.length; ++j) {
+				if (expandedNames[j] != null) {
+					IFileStore file = getEFSFile(expandedNames[j]);
+					org.eclipse.core.filesystem.IFileInfo info = (file == null) ? null : file.fetchInfo();
+					if ((info != null) && info.exists() && (info.getLastModified() > artefactTimeStamp)) {
+						return true;
+					}
+				}
+			}
+		} catch (Exception e) {
+			// we'll have to assume that the dependency didn't change if we couldn't get its timestamp
+			ManagedBuilderCorePlugin.log(e);
+		}
+		return false;
+	}
+
+	private IToolChain getToolChain() {
+		IBuildObject bo = fParent.getParent().getParent();
+		IToolChain tCh = null;
+		if (bo instanceof IToolChain) {
+			tCh = ((IToolChain) bo);
+		} else if (bo instanceof IFileInfo) {
+			tCh = ((ResourceConfiguration) bo).getBaseToolChain();
+		}
+		return tCh;
+	}
+
+	private String[] getDepLibs() throws CoreException, BuildException, CdtVariableException {
+		IOption[] options = fParent.getParent().getOptions();
+		String[] libNames = null;
+		List<String> libPaths = null;
+		for (int i = 0; i < options.length; ++i) {
+			int type = options[i].getValueType();
+			if (type == IOption.LIBRARIES) {
+				libNames = options[i].getLibraries();
+			} else if (type == IOption.LIBRARY_PATHS) {
+				if (null == libPaths)
+					libPaths = new ArrayList<String>();
+				libPaths.addAll(Arrays.asList(restoreLibraryPaths(options[i])));
+			}
+		}
+
+		if ((libNames != null) && (libPaths != null)) {
+			IToolChain toolChain = getToolChain();
+			for (int i = 0; i < libNames.length; ++i) {
+				URI uri = findLibrary(toolChain, libNames[i], libPaths);
+				libNames[i] = (uri == null) ? null : uri.toString();
+			}
+			return libNames;
+		}
+		return new String[0];
+	}
+
+	private String[] restoreLibraryPaths(IOption option) throws BuildException, CdtVariableException {
+		@SuppressWarnings("unchecked")
+		List<String> libPaths = (List<String>) option.getValue();
+		String[] dirs = libPaths.toArray(new String[libPaths.size()]);
+		dirs = substituteEnvVars(option, dirs);
+		return dirs;
+	}
+
+	private URI findLibrary(IToolChain toolChain, final String libName, List<String> dirs) throws CoreException {
+		final String libSO = getDynamicLibPrefix(toolChain) + libName + '.'
+				+ getDynamicLibExtension(toolChain);
+		final String libA = getStaticLibPrefix(toolChain) + libName + '.' + getStaticLibExtension(toolChain);
+		
+		class LibFilter {
+			public boolean accept(String name) {
+				if (equals(libA, name))
+					return true;
+				if (!startsWith(name, libSO))
+					return false;
+				if (libSO.length() == name.length())
+					return true; // we don't necessarily have a version extension
+				if (name.charAt(libSO.length()) != '.')
+					return false;
+				String ext = libName.substring(libSO.length() + 1);
+				try {
+					Integer.parseInt(ext);
+					return true;
+				} catch (NumberFormatException e) {
+					return false;
+				}
+			}
+			
+			boolean equals(String a, String b) {
+				return a.equals(b);
+			}
+			
+			boolean startsWith(String string, String prefix) {
+				return string.startsWith(prefix);
+			}
+			
+		}
+		class CaseInsensitiveLibFilter extends LibFilter {
+			@Override
+			boolean equals(String a, String b) {
+				return a.equalsIgnoreCase(b);
+			}
+			
+			@Override
+			boolean startsWith(String string, String prefix) {
+				return string.toLowerCase().startsWith(prefix.toLowerCase());
+			}
+		}
+		
+		for (Iterator<String> i = dirs.iterator(); i.hasNext();) {
+			IFileStore dir = getEFSFile(i.next());
+			LibFilter filter = dir.getFileSystem().isCaseSensitive() ? new LibFilter() : new CaseInsensitiveLibFilter();
+			for (IFileStore child : dir.childStores(EFS.NONE, null)) {
+				if (filter.accept(child.getName())) {
+					return child.toURI();
+				}
+			}
+		}
+		return null;
+	}
+	
+	/**
+	 * Gets an EFS file-store for the specified path or URI, which may be a local filesystem path or may be a more abstract URI.
+	 * 
+	 * @param pathOrURI a local filesystem path or URI
+	 * 
+	 * @return the file store, if one could be determined
+	 */
+	private static IFileStore getEFSFile(String pathOrURI) {
+		IFileStore result;
+		
+		try {
+			// try it as a URI
+			result = EFS.getStore(URI.create(pathOrURI));
+		} catch (Exception e) {
+			// most likely, the path is not a URI, so assume a local file and try again
+			result = EFS.getLocalFileSystem().getStore(new Path(pathOrURI));
+		}
+		
+		return result;
+	}
+
+	private String[] substituteEnvVars(IOption option, String[] paths) throws CdtVariableException {
+		BuildMacroProvider provider = (BuildMacroProvider) ManagedBuildManager.getBuildMacroProvider();
+		IMacroContextInfo info = provider.getMacroContextInfo(IBuildMacroProvider.CONTEXT_OPTION,
+				new OptionContextData(option, fParent));
+		String delimiter = ManagedBuildManager.getEnvironmentVariableProvider().getDefaultDelimiter();
+		String inexVal = " "; //$NON-NLS-1$
+		SupplierBasedCdtVariableSubstitutor subst = provider.getMacroSubstitutor(info, inexVal, delimiter);
+
+		String[] newPaths = CdtVariableResolver.resolveStringListValues(paths, subst, false);
+		for (int i = 0; i < newPaths.length; ++i) {
+			String newPath = newPaths[i];
+			int len = newPath.length();
+			if ((len > 1) && (newPath.charAt(0) == '\"') && (newPath.charAt(len - 1) == '\"'))
+				newPaths[i] = newPaths[i].substring(1, len - 1);
+		}
+		return newPaths;
+	}
+
+	private static String getStaticLibPrefix(IToolChain toolChain) {
+		IOutputType type = findOutputType(toolChain, BUILD_VARIABLE_STATIC_LIB);
+		if (null == type)
+			return "lib"; //$NON-NLS-1$
+		return type.getOutputPrefix();
+	}
+
+	private static String getStaticLibExtension(IToolChain toolChain) {
+		IOutputType type = findOutputType(toolChain, BUILD_VARIABLE_STATIC_LIB);
+		if (null == type || type.getOutputExtensionsAttribute().length == 0) {
+			return "a"; //$NON-NLS-1$
+		} 
+		return type.getOutputExtensionsAttribute()[0];
+	}
+
+	private static String getDynamicLibPrefix(IToolChain toolChain) {
+		IOutputType type = findOutputType(toolChain, BUILD_VARIABLE_SHARED_LIB);
+		if (null == type)
+			return "lib"; //$NON-NLS-1$
+		return type.getOutputPrefix();
+	}
+
+	private static String getDynamicLibExtension(IToolChain toolChain) {
+		IOutputType type = findOutputType(toolChain, BUILD_VARIABLE_SHARED_LIB);
+		if (null == type || type.getOutputExtensionsAttribute().length == 0) {
+			return "so"; //$NON-NLS-1$
+		} 
+		return type.getOutputExtensionsAttribute()[0];
+	}
+
+	public static IOutputType findOutputType(IToolChain toolChain, String buildVariable) {
+		// if we're determining whether to re-build an executable, then it won't have an output
+		// type for shared libraries from which we can get a filename extension or prefix.
+		// We have to scan the extension toolchain
+		toolChain = ManagedBuildManager.getExtensionToolChain(toolChain);
+		ITool[] tools = toolChain.getTools();
+		for (int i = 0; i < tools.length; ++i) {
+			IOutputType[] oTypes = tools[i].getOutputTypes();
+			for (int j = 0; j < oTypes.length; ++j) {
+				if (buildVariable.equals(oTypes[j].getBuildVariable()))
+					return oTypes[j];
+			}
+		}
+		return null;
+	}
+
+	private String[] getDepObjs(IConfiguration configuration) throws BuildException, CdtVariableException {
+		IOption[] options = fParent.getParent().getOptions();
+		String[] userObjs = null;
+		for (int i = 0; i < options.length; ++i) {
+			int type = options[i].getValueType();
+			if (type == IOption.OBJECTS) {
+				userObjs = options[i].getUserObjects();
+				return substituteEnvVars(options[i], userObjs);
+			}
+		}
+		return new String[0];
+	}
+
+	private String[] getDepFiles(String sPath) {
+		return new String[0];
 	}
 
 	public void setRebuildState(boolean rebuild){