Set CC and CXX variables to toolchain compileCommands in std build.

Also set BUILD_MODE to the launch mode so the makefile can do
different things based on the mode. Change template to add -g
option for debug.

Also fix a deadlock I detected due to side affect build folder
creation.

Change-Id: Ic7b13ba3238e6ef201cccb1b2bfc8dcc6956ea3a

build/org.eclipse.cdt.make.core/templates/simple/Makefile

@@ -2,13 +2,17 @@ PROJECT_ROOT = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
 
 OBJS = ${projectName}.o
 
+ifeq ($(BUILD_MODE),debug)
+	CFLAGS += -g
+endif
+
 all:	${projectName}
 
 ${projectName}:	$(OBJS)
 	$(CXX) -o $@ $^
 
 %.o:	$(PROJECT_ROOT)%.cpp
-	$(CXX) -c $(CFLAGS) $(CPPFLAGS) -o $@ $<
+	$(CXX) -c $(CFLAGS) $(CXXFLAGS) $(CPPFLAGS) -o $@ $<
 
 %.o:	$(PROJECT_ROOT)%.c
 	$(CC) -c $(CFLAGS) $(CPPFLAGS) -o $@ $<

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/build/CBuildConfiguration.java

@@ -68,12 +68,11 @@ 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.NullProgressMonitor;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.PlatformObject;
 import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.core.runtime.preferences.InstanceScope;
-import org.eclipse.osgi.util.NLS;
 import org.osgi.service.prefs.BackingStoreException;
 import org.osgi.service.prefs.Preferences;
 
@@ -127,9 +126,9 @@ public abstract class CBuildConfiguration extends PlatformObject
 						null));
 			}
 		}
-		toolChain = tc;
+		this.toolChain = tc;
 
-		launchMode = settings.get(LAUNCH_MODE, "run"); //$NON-NLS-1$
+		this.launchMode = settings.get(LAUNCH_MODE, "run"); //$NON-NLS-1$
 	}
 
 	protected CBuildConfiguration(IBuildConfiguration config, String name, IToolChain toolChain) {
@@ -204,18 +203,28 @@ public abstract class CBuildConfiguration extends PlatformObject
 	}
 
 	public IContainer getBuildContainer() throws CoreException {
-		// TODO should really be passing a monitor in here or create this in
-		// a better spot. should also throw the core exception
 		// TODO make the name of this folder a project property
-		IProgressMonitor monitor = new NullProgressMonitor();
 		IProject project = getProject();
 		IFolder buildRootFolder = project.getFolder("build"); //$NON-NLS-1$
-		if (!buildRootFolder.exists()) {
-			buildRootFolder.create(IResource.FORCE | IResource.DERIVED, true, monitor);
-		}
 		IFolder buildFolder = buildRootFolder.getFolder(name);
-		if (!buildFolder.exists()) {
+
-			buildFolder.create(IResource.FORCE | IResource.DERIVED, true, monitor);
+		if (!buildRootFolder.exists() || !buildFolder.exists()) {
+			new Job(Messages.CBuildConfiguration_CreateJob) {
+				@Override
+				protected IStatus run(IProgressMonitor monitor) {
+					try {
+						if (!buildRootFolder.exists()) {
+							buildRootFolder.create(IResource.FORCE | IResource.DERIVED, true, monitor);
+						}
+						if (!buildFolder.exists()) {
+							buildFolder.create(IResource.FORCE | IResource.DERIVED, true, monitor);
+						}
+						return Status.OK_STATUS;
+					} catch (CoreException e) {
+						return e.getStatus();
+					}
+				}
+			}.schedule();
 		}
 
 		return buildFolder;
@@ -308,7 +317,14 @@ public abstract class CBuildConfiguration extends PlatformObject
 
 	@Override
 	public IEnvironmentVariable getVariable(String name) {
-		// By default, none
+		IEnvironmentVariable[] vars = getVariables();
+		if (vars != null) {
+			for (IEnvironmentVariable var : vars) {
+				if (var.getName().equals(name)) {
+					return var;
+				}
+			}
+		}
 		return null;
 	}
 
@@ -377,8 +393,7 @@ public abstract class CBuildConfiguration extends PlatformObject
 				URI uri = URIUtil.toURI(externalLocation);
 				if (uri.getScheme() != null) {
 					marker.setAttribute(ICModelMarker.C_MODEL_MARKER_EXTERNAL_LOCATION, externalLocation);
-					String locationText = NLS.bind(
+					String locationText = String.format(Messages.CBuildConfiguration_Location,
-							CCorePlugin.getResourceString("ACBuilder.ProblemsView.Location"), //$NON-NLS-1$
 							problemMarkerInfo.lineNumber, externalLocation);
 					marker.setAttribute(IMarker.LOCATION, locationText);
 				}

core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/build/StandardBuildConfiguration.java

@@ -19,6 +19,10 @@ import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.ConsoleOutputStream;
 import org.eclipse.cdt.core.ErrorParserManager;
 import org.eclipse.cdt.core.IConsoleParser;
+import org.eclipse.cdt.core.dom.ast.gnu.c.GCCLanguage;
+import org.eclipse.cdt.core.dom.ast.gnu.cpp.GPPLanguage;
+import org.eclipse.cdt.core.envvar.EnvironmentVariable;
+import org.eclipse.cdt.core.envvar.IEnvironmentVariable;
 import org.eclipse.cdt.core.model.ICModelMarker;
 import org.eclipse.cdt.core.resources.IConsole;
 import org.eclipse.cdt.internal.core.build.Messages;
@@ -59,15 +63,18 @@ public class StandardBuildConfiguration extends CBuildConfiguration {
 	private String[] buildCommand;
 	private String[] cleanCommand;
 	private IContainer buildContainer;
+	private IEnvironmentVariable[] envVars;
 
 	public StandardBuildConfiguration(IBuildConfiguration config, String name) throws CoreException {
 		super(config, name);
 		applyProperties();
+		setupEnvVars();
 	}
 
 	public StandardBuildConfiguration(IBuildConfiguration config, String name, IToolChain toolChain,
-			String launchMode) {
+			String launchMode) throws CoreException {
-		super(config, name, toolChain);
+		super(config, name, toolChain, launchMode);
+		setupEnvVars();
 	}
 
 	private void applyProperties() {
@@ -92,6 +99,33 @@ public class StandardBuildConfiguration extends CBuildConfiguration {
 		}
 	}
 
+	private void setupEnvVars() throws CoreException {
+		IToolChain toolchain = getToolChain();
+		List<IEnvironmentVariable> vars = new ArrayList<>();
+
+		String[] cc = toolchain.getCompileCommands(GCCLanguage.getDefault());
+		if (cc != null && cc.length > 0) {
+			vars.add(new EnvironmentVariable("CC", cc[0])); //$NON-NLS-1$
+		}
+
+		String[] cxx = toolchain.getCompileCommands(GPPLanguage.getDefault());
+		if (cxx != null && cxx.length > 0) {
+			vars.add(new EnvironmentVariable("CXX", cxx[0])); //$NON-NLS-1$
+		}
+
+		String mode = getLaunchMode();
+		if (mode != null && !mode.isEmpty()) {
+			vars.add(new EnvironmentVariable("BUILD_MODE", mode)); //$NON-NLS-1$
+		}
+
+		envVars = vars.toArray(new IEnvironmentVariable[0]);
+	}
+
+	@Override
+	public IEnvironmentVariable[] getVariables() {
+		return envVars;
+	}
+
 	public void setBuildContainer(IContainer buildContainer) {
 		this.buildContainer = buildContainer;
 		setProperty(BUILD_CONTAINER, buildContainer.getFullPath().toString());

core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/build/Messages.java

@@ -11,7 +11,9 @@ import org.eclipse.osgi.util.NLS;
 
 public class Messages extends NLS {
 	private static final String BUNDLE_NAME = "org.eclipse.cdt.internal.core.build.Messages"; //$NON-NLS-1$
+	public static String CBuildConfiguration_CreateJob;
 	public static String CBuildConfiguration_ToolchainMissing;
+	public static String CBuildConfiguration_Location;
 	public static String CBuilder_ExceptionWhileBuilding;
 	public static String CBuilder_ExceptionWhileBuilding2;
 	public static String CBuilder_NotConfiguredCorrectly;

core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/build/messages.properties

@@ -11,4 +11,6 @@ CBuilder_NotConfiguredCorrectly=Build not configured correctly\n
 CBuilder_NotConfiguredCorrectly2=Build not configured correctly\n
 StandardBuildConfiguration_0=Building in: %s\n
 StandardBuildConfiguration_1=Build complete: %s\n
+CBuildConfiguration_CreateJob=Create Build Folder
+CBuildConfiguration_Location=line %d, external location: %s
 CBuildConfiguration_ToolchainMissing=Toolchain is missing for build configuration