/*******************************************************************************
* Copyright (c) 2009, 2010 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
* Wind River Systems - Modified for new DSF Reference Implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.mi.service.command.events;
import org.eclipse.cdt.debug.internal.core.breakpoints.CEventBreakpoint;
import org.eclipse.cdt.dsf.concurrent.ConfinedToDsfExecutor;
import org.eclipse.cdt.dsf.concurrent.Immutable;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IBreakpoints.IBreakpointsTargetDMContext;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
import org.eclipse.cdt.dsf.gdb.internal.GdbPlugin;
import org.eclipse.cdt.dsf.mi.service.MIBreakpoints.MIBreakpointDMContext;
import org.eclipse.cdt.dsf.mi.service.MIBreakpointsManager;
import org.eclipse.cdt.dsf.mi.service.command.output.MIConst;
import org.eclipse.cdt.dsf.mi.service.command.output.MIFrame;
import org.eclipse.cdt.dsf.mi.service.command.output.MIResult;
import org.eclipse.cdt.dsf.mi.service.command.output.MIValue;
import org.eclipse.cdt.dsf.service.DsfServicesTracker;
import org.eclipse.cdt.gdb.internal.eventbkpts.GdbCatchpoints;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IBreakpoint;
/**
* Conveys that gdb reported the target stopped because of a breakpoint. This
* includes catchpoints, as gdb reports them as a breakpoint-hit. The
* async-exec-output record looks like this:
*
* <code>
* ^stopped,reason="breakpoint-hit",bkptno="1",thread-id="0",frame={addr="0x08048468",func="main",args=[{name="argc",value="1"},{name="argv",value="0xbffff18c"}],file="hello.c",line="4"}
* </code>
*/
@Immutable
public class MIBreakpointHitEvent extends MIStoppedEvent {
int bkptno;
protected MIBreakpointHitEvent(IExecutionDMContext ctx, int token, MIResult[] results, MIFrame frame, int bkptno) {
super(ctx, token, results, frame);
this.bkptno = bkptno;
}
public int getNumber() {
return bkptno;
}
@ConfinedToDsfExecutor("")
public static MIBreakpointHitEvent parse(IExecutionDMContext dmc, int token, MIResult[] results) {
int bkptno = -1;
for (int i = 0; i < results.length; i++) {
String var = results[i].getVariable();
MIValue value = results[i].getMIValue();
String str = ""; //$NON-NLS-1$
if (value != null && value instanceof MIConst) {
str = ((MIConst)value).getString();
}
if (var.equals("bkptno")) { //$NON-NLS-1$
try {
bkptno = Integer.parseInt(str.trim());
} catch (NumberFormatException e) {
}
}
}
// We might be here because of a catchpoint hit; in gdb >= 7.0,
// catchpoints are reported as breakpoints. Unfortunately, there's
// nothing in the stopped event indicating it's a catchpoint, and unlike
// gdb < 7.0, there are no stream records that tell us so. The only way
// to determine it's a catchpoint is to map the gdb breakpoint number
// back to the CBreakpoint (platform) object.
IBreakpointsTargetDMContext bpsTarget = DMContexts.getAncestorOfType(dmc, IBreakpointsTargetDMContext.class);
if (bpsTarget != null) {
MIBreakpointDMContext bkpt = new MIBreakpointDMContext(dmc.getSessionId(), new IDMContext[] {bpsTarget}, bkptno);
DsfServicesTracker tracker = new DsfServicesTracker(GdbPlugin.getBundleContext(), dmc.getSessionId());
try {
MIBreakpointsManager bkptMgr = tracker.getService(MIBreakpointsManager.class);
if (bkptMgr != null) {
IBreakpoint platformBkpt = bkptMgr.findPlatformBreakpoint(bkpt);
if (platformBkpt instanceof CEventBreakpoint) {
try {
String eventTypeID = ((CEventBreakpoint)platformBkpt).getEventType();
String gdbKeyword = GdbCatchpoints.eventToGdbCatchpointKeyword(eventTypeID);
return MICatchpointHitEvent.parse(dmc, token, results, bkptno, gdbKeyword);
} catch (DebugException e) {
}
}
}
}
finally {
tracker.dispose();
}
}
MIStoppedEvent stoppedEvent = MIStoppedEvent.parse(dmc, token, results);
return new MIBreakpointHitEvent(stoppedEvent.getDMContext(), token, results, stoppedEvent.getFrame(), bkptno);
}
}