| /******************************************************************************* |
| * Copyright (c) 2016 Freescale Semiconductor and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Teodor Madan (Freescale Semiconductor) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.cdt.dsf.gdb.internal.ui.osview; |
| |
| import java.text.MessageFormat; |
| import java.util.ArrayList; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor; |
| import org.eclipse.cdt.dsf.concurrent.Query; |
| import org.eclipse.cdt.dsf.concurrent.RequestMonitor; |
| import org.eclipse.cdt.dsf.concurrent.Sequence; |
| import org.eclipse.cdt.dsf.datamodel.IDMContext; |
| import org.eclipse.cdt.dsf.debug.service.IProcesses; |
| import org.eclipse.cdt.dsf.debug.service.IProcesses.IProcessDMContext; |
| import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService; |
| import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService.ICommandControlDMContext; |
| import org.eclipse.cdt.dsf.gdb.internal.ui.GdbUIPlugin; |
| import org.eclipse.cdt.dsf.gdb.service.IGDBHardwareAndOS2.IResourcesInformation; |
| import org.eclipse.cdt.dsf.gdb.service.IGDBProcesses; |
| import org.eclipse.cdt.dsf.service.DsfServicesTracker; |
| import org.eclipse.cdt.dsf.service.DsfSession; |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.expressions.IEvaluationContext; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.ICoreRunnable; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.IStatusHandler; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.ISources; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| import org.osgi.framework.BundleContext; |
| |
| /** |
| * |
| */ |
| public class AttachProcessHandler extends AbstractHandler { |
| |
| private static final String PROCESSES_CLASS = "processes"; //$NON-NLS-1$ |
| private static final String THREADS_CLASS = "threads"; //$NON-NLS-1$ |
| |
| @Override |
| public void setEnabled(Object evaluationContext) { |
| boolean state = false; |
| if (evaluationContext instanceof IEvaluationContext) { |
| Object p = ((IEvaluationContext) evaluationContext).getVariable(ISources.ACTIVE_PART_NAME); |
| Object s = ((IEvaluationContext) evaluationContext).getVariable(ISources.ACTIVE_CURRENT_SELECTION_NAME); |
| if (p instanceof OSResourcesView && s instanceof IStructuredSelection) { |
| IStructuredSelection sel2 = (IStructuredSelection) s; |
| if (!sel2.isEmpty() && sel2.getFirstElement() instanceof IResourcesInformation) { |
| OSResourcesView rview = (OSResourcesView) p; |
| // check that processes class resources is selected. |
| ICommandControlDMContext sessionContext = rview.getSessionContext(); |
| if (sessionContext != null && (PROCESSES_CLASS.equals(rview.getResourceClass()) |
| || THREADS_CLASS.equals(rview.getResourceClass()))) { |
| // check that attach is supported" |
| state = isAttachSupported(sessionContext); |
| } |
| } |
| } |
| } |
| setBaseEnabled(state); |
| |
| } |
| |
| private boolean isAttachSupported(final ICommandControlDMContext context) { |
| DsfSession session = DsfSession.getSession(context.getSessionId()); |
| if (session == null) { |
| // can be null while terminating |
| return false; |
| } |
| |
| Query<Boolean> canConnectQuery = new Query<>() { |
| @Override |
| public void execute(DataRequestMonitor<Boolean> rm) { |
| BundleContext c = GdbUIPlugin.getDefault().getBundle().getBundleContext(); |
| DsfServicesTracker tracker = new DsfServicesTracker(c, context.getSessionId()); |
| |
| IProcesses procService = tracker.getService(IProcesses.class); |
| ICommandControlService commandControl = tracker.getService(ICommandControlService.class); |
| |
| if (procService != null && commandControl != null) { |
| procService.isDebuggerAttachSupported(commandControl.getContext(), rm); |
| } else { |
| rm.done(false); |
| } |
| } |
| }; |
| try { |
| session.getExecutor().execute(canConnectQuery); |
| return canConnectQuery.get(); |
| } catch (InterruptedException | java.util.concurrent.ExecutionException e) { |
| // Can be thrown if the session is shutdown |
| } |
| return false; |
| } |
| |
| @Override |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| ISelection selection = HandlerUtil.getCurrentSelection(event); |
| IWorkbenchPart part = HandlerUtil.getActivePart(event); |
| if (selection instanceof IStructuredSelection && part instanceof OSResourcesView) { |
| // get column to extract pid of the selected process/thread |
| int pidColumn = -1; |
| IResourcesInformation firstSelection = (IResourcesInformation) ((IStructuredSelection) selection) |
| .getFirstElement(); |
| for (int i = 0; i < firstSelection.getColumnNames().length; i++) { |
| if ("pid".equalsIgnoreCase(firstSelection.getColumnNames()[i])) { //$NON-NLS-1$ |
| pidColumn = i; |
| break; |
| } |
| } |
| if (pidColumn < 0) { |
| GdbUIPlugin.log( |
| new Status(IStatus.ERROR, GdbUIPlugin.PLUGIN_ID, "Missing 'pid' column to perform attach")); //$NON-NLS-1$ |
| return null; |
| } |
| |
| // Use a set of process. It is possible to have multiple entries |
| // with the same pid, e.g. threads with same process id |
| Set<String> process_ids = new LinkedHashSet<>(); |
| for (Object sel : ((IStructuredSelection) selection).toList()) { |
| IResourcesInformation ri = (IResourcesInformation) sel; |
| if (pidColumn >= 0) { |
| String pid = ri.getContent()[0][pidColumn]; |
| try { |
| Integer.parseInt(pid); // test for integer value |
| process_ids.add(pid); |
| } catch (NumberFormatException e) { |
| GdbUIPlugin.log(new Status(IStatus.ERROR, GdbUIPlugin.PLUGIN_ID, "Non-integer pid " + pid, e)); //$NON-NLS-1$ |
| } |
| |
| } |
| } |
| |
| final ICommandControlDMContext context = ((OSResourcesView) part).getSessionContext(); |
| final List<Sequence.Step> attach_steps = new ArrayList<>(process_ids.size()); |
| for (final String p : process_ids) { |
| attach_steps.add(new Sequence.Step() { |
| @Override |
| public void execute(RequestMonitor rm) { |
| attachToProcess(context, p, rm); |
| } |
| |
| @Override |
| public String getTaskName() { |
| return MessageFormat.format(Messages.OSView_AttachTask, p); |
| } |
| }); |
| } |
| if (!attach_steps.isEmpty()) { |
| Job.create(Messages.OSView_AttachJobName, new ICoreRunnable() { |
| @Override |
| public void run(IProgressMonitor monitor) throws CoreException { |
| DsfSession session = DsfSession.getSession(context.getSessionId()); |
| Sequence sequence = new Sequence(session.getExecutor(), monitor, Messages.OSView_AttachJobName, |
| "") { //$NON-NLS-1$ |
| @Override |
| public Step[] getSteps() { |
| return attach_steps.toArray(new Step[attach_steps.size()]); |
| } |
| }; |
| session.getExecutor().execute(sequence); |
| try { |
| sequence.get(); |
| } catch (InterruptedException | java.util.concurrent.ExecutionException e) { |
| // ignore here. |
| } |
| } |
| }).schedule(); |
| } |
| } |
| return null; |
| } |
| |
| private void attachToProcess(final ICommandControlDMContext context, final String pid, RequestMonitor rm) { |
| BundleContext c = GdbUIPlugin.getDefault().getBundle().getBundleContext(); |
| DsfServicesTracker tracker = new DsfServicesTracker(c, context.getSessionId()); |
| try { |
| IGDBProcesses procService = tracker.getService(IGDBProcesses.class); |
| if (procService != null) { |
| // attach directly without looking for the binary |
| // since GDB will figure it out by itself |
| |
| // TODO: update with asking user for the binary for cases |
| // not covered by GDB (e.g. GDB version < 7.10) |
| |
| IProcessDMContext procDmc = procService.createProcessContext(context, pid); |
| procService.attachDebuggerToProcess(procDmc, new DataRequestMonitor<IDMContext>( |
| DsfSession.getSession(context.getSessionId()).getExecutor(), rm) { |
| @Override |
| protected void handleErrorOrWarning() { |
| IStatus status = getStatus(); |
| if (status != null && !status.isOK()) { |
| IStatusHandler statusHandler = DebugPlugin.getDefault().getStatusHandler(status); |
| if (statusHandler != null) { |
| try { |
| statusHandler.handleStatus(status, null); |
| } catch (CoreException ex) { |
| GdbUIPlugin.getDefault().getLog().log(ex.getStatus()); |
| } |
| } else { |
| GdbUIPlugin.getDefault().getLog().log(status); |
| } |
| } |
| handleSuccess(); // mark as success even if fail. |
| } |
| |
| }); |
| } else { |
| rm.done(); |
| GdbUIPlugin.log(new Throwable("Could not retreive process service for context" + context)); //$NON-NLS-1$ |
| } |
| } finally { |
| tracker.dispose(); |
| } |
| } |
| } |
