/*******************************************************************************
* Copyright (c) 2011, 2013 Ericsson 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:
* Ericsson - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.gdb.service;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.eclipse.cdt.debug.core.CDebugUtils;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.DsfExecutor;
import org.eclipse.cdt.dsf.concurrent.IDsfStatusConstants;
import org.eclipse.cdt.dsf.concurrent.ImmediateDataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.gdb.IGDBLaunchConfigurationConstants;
import org.eclipse.cdt.dsf.gdb.internal.GdbPlugin;
import org.eclipse.cdt.dsf.gdb.service.command.IGDBControl;
import org.eclipse.cdt.dsf.mi.service.command.CommandFactory;
import org.eclipse.cdt.dsf.mi.service.command.output.MIAddInferiorInfo;
import org.eclipse.cdt.dsf.mi.service.command.output.MIInfo;
import org.eclipse.cdt.dsf.service.DsfServicesTracker;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
/**
* With GDB 7.2, to create a new process, we need to use the -add-inferior command first.
* This allows to create multiple processes, unlike previous versions of GDB.
* Note that GDB 7.1 does support multi-process but didn't have the MI commands (e.g., -add-inferior)
* so we only support multi-process starting with 7.2
*
* @since 4.0
*/
public class DebugNewProcessSequence_7_2 extends DebugNewProcessSequence {
private IGDBControl fGdbControl;
private IGDBProcesses fProcService;
private IGDBBackend fBackend;
private CommandFactory fCommandFactory;
private String fSessionId;
private final boolean fInitialProcess;
private final Map<String, Object> fAttributes;
public DebugNewProcessSequence_7_2(
DsfExecutor executor,
boolean isInitial,
IDMContext dmc,
String file,
Map<String, Object> attributes,
DataRequestMonitor<IDMContext> rm) {
super(executor, isInitial, dmc, file, attributes, rm);
fSessionId = dmc.getSessionId();
fInitialProcess = isInitial;
fAttributes = attributes;
}
@Override
protected String[] getExecutionOrder(String group) {
if (GROUP_TOP_LEVEL.equals(group)) {
// Initialize the list with the base class' steps
// We need to create a list that we can modify, which is why we create our own ArrayList.
List<String> orderList = new ArrayList<String>(Arrays.asList(super.getExecutionOrder(GROUP_TOP_LEVEL)));
// Now insert our steps right after the initialization of the base class.
orderList.add(orderList.indexOf("stepInitializeBaseSequence") + 1, "stepInitializeSequence_7_2"); //$NON-NLS-1$ //$NON-NLS-2$
orderList.add(orderList.indexOf("stepInitializeSequence_7_2") + 1, "stepAddInferior"); //$NON-NLS-1$ //$NON-NLS-2$
orderList.add(orderList.indexOf("stepSetExecutable") + 1, "stepSetRemoteExecutable"); //$NON-NLS-1$ //$NON-NLS-2$
return orderList.toArray(new String[orderList.size()]);
}
return null;
}
/**
* Initialize the members of the DebugNewProcessSequence_7_2 class.
* This step is mandatory for the rest of the sequence to complete.
*/
@Execute
public void stepInitializeSequence_7_2(RequestMonitor rm) {
DsfServicesTracker tracker = new DsfServicesTracker(GdbPlugin.getBundleContext(), fSessionId);
fGdbControl = tracker.getService(IGDBControl.class);
fProcService = tracker.getService(IGDBProcesses.class);
fBackend = tracker.getService(IGDBBackend.class);
tracker.dispose();
if (fGdbControl == null || fProcService == null || fBackend == null) {
rm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, IDsfStatusConstants.INTERNAL_ERROR, "Cannot obtain service", null)); //$NON-NLS-1$
rm.done();
return;
}
fCommandFactory = fGdbControl.getCommandFactory();
rm.done();
}
/**
* Add a new inferior.
*/
@Execute
public void stepAddInferior(final RequestMonitor rm) {
if (fInitialProcess) {
// The first process is automatically created by GDB. We actually want to use that first created process
// instead of ignoring it and creating a new one for a couple of reasons:
// 1- post-mortem and non-attach remote sessions don't support creating a new process
// 2- commands that were part of the .gdbinit file will affect the initial process, which is what the user expects,
// but would not affect a new process we created instead.
setContainerContext(fProcService.createContainerContextFromGroupId(fGdbControl.getContext(), GDBProcesses_7_2.INITIAL_THREAD_GROUP_ID));
rm.done();
return;
}
fGdbControl.queueCommand(
fGdbControl.getCommandFactory().createMIAddInferior(fGdbControl.getContext()),
new ImmediateDataRequestMonitor<MIAddInferiorInfo>(rm) {
@Override
protected void handleSuccess() {
final String groupId = getData().getGroupId();
if (groupId == null || groupId.trim().length() == 0) {
rm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, IDsfStatusConstants.REQUEST_FAILED, "Invalid gdb group id.", null)); //$NON-NLS-1$
rm.done();
return;
}
setContainerContext(fProcService.createContainerContextFromGroupId(fGdbControl.getContext(), groupId));
rm.done();
}
});
}
/**
* Set remote executable.
* @since 4.2
*/
@Execute
public void stepSetRemoteExecutable(final RequestMonitor rm) {
if (fBackend.getSessionType() == SessionType.REMOTE && fBackend.getIsAttachSession()) {
String remoteBinary = CDebugUtils.getAttribute(
fAttributes,
IGDBLaunchConfigurationConstants.ATTR_DEBUGGER_REMOTE_BINARY,
""); //$NON-NLS-1$
if (remoteBinary.length() == 0) {
rm.setStatus(new Status(IStatus.ERROR, GdbPlugin.PLUGIN_ID, "Binary on host is not specified")); //$NON-NLS-1$
rm.done();
return;
}
fGdbControl.queueCommand(
fCommandFactory.createMIGDBSet(
getContainerContext(),
new String[] {
"remote", //$NON-NLS-1$
"exec-file", //$NON-NLS-1$
remoteBinary,
}),
new ImmediateDataRequestMonitor<MIInfo>(rm));
}
else {
rm.done();
}
}
}