/*******************************************************************************
* Copyright (c) 2012, 2016 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:
* Marc Khouzam (Ericsson) - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.mi.service.command.output;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* 'info break [BP_REFERENCE] will return information about
* the specified breakpoint. We use it to find out to which
* inferiors a breakpoint is applicable.
*
* sample output:
*
* (gdb) info break
* Num Type Disp Enb Address What
* 1 breakpoint keep y <MULTIPLE>
* 1.1 y 0x08048533 in main() at loopfirst.cc:8 inf 2
* 1.2 y 0x08048533 in main() at loopfirst.cc:8 inf 1
* 2 breakpoint keep y <MULTIPLE>
* 2.1 y 0x08048553 in main() at loopfirst.cc:9 inf 2
* 2.2 y 0x08048553 in main() at loopfirst.cc:9 inf 1
*
* If only one inferior is being debugged there is not mention of the inferior:
* (gdb) info break
* Num Type Disp Enb Address What
* 1 breakpoint keep y 0x08048533 in main() at loopfirst.cc:8
* 2 breakpoint keep y 0x08048553 in main() at loopfirst.cc:9
*
* Note that the below output is theoretically possible looking at GDB's code but
* I haven't figured out a way to trigger it. Still, we should be prepared for it:
* (gdb) info break
* Num Type Disp Enb Address What
* 1 breakpoint keep y <MULTIPLE>
* 1.1 y 0x08048533 in main() at loopfirst.cc:8 inf 3, 2
* 1.2 y 0x08048533 in main() at loopfirst.cc:8 inf 2, 1
* 2 breakpoint keep y <MULTIPLE>
* 2.1 y 0x08048553 in main() at loopfirst.cc:9 inf 2, 1
* 2.2 y 0x08048553 in main() at loopfirst.cc:9 inf 3, 2, 1
*
* @since 4.2
*/
public class CLIInfoBreakInfo extends MIInfo {
private Map<String, String[]> fBreakpointToGroupMap = new HashMap<String, String[]>();
public CLIInfoBreakInfo(MIOutput out) {
super(out);
parse();
}
/**
* Returns the map of breakpoint to groupId array indicating to which thread-group
* each breakpoint applies. If there is only a single thread-group being debugged, an
* empty map will be returned.
*/
public Map<String, String[]> getBreakpointToGroupMap() {
return fBreakpointToGroupMap;
}
protected void parse() {
final String INFERIOR_PREFIX = " inf "; //$NON-NLS-1$
if (isDone()) {
MIOutput out = getMIOutput();
for (MIOOBRecord oob : out.getMIOOBRecords()) {
if (oob instanceof MIConsoleStreamOutput) {
String line = ((MIConsoleStreamOutput)oob).getString().trim();
int loc = line.indexOf(INFERIOR_PREFIX);
if (loc >= 0) {
// Get the breakpoint id by extracting the first element before a white space
// or before a period. We can set a limit of 2 since we only need the first element
String bpIdStr = line.split("[\\s\\.]", 2)[0]; //$NON-NLS-1$
String[] groups = fBreakpointToGroupMap.get(bpIdStr);
Set<String> groupIdList = new HashSet<String>();
if (groups != null) {
// Since we already know about this breakpoint id we must retain the list
// we have been building
groupIdList.addAll(Arrays.asList(groups));
}
// Get the comma-separated list of inferiors
// Split the list into individual ids
String inferiorIdStr = line.substring(loc + INFERIOR_PREFIX.length()).trim();
for (String id : inferiorIdStr.split(",")) { //$NON-NLS-1$
// Add the 'i' prefix as GDB does for MI commands
groupIdList.add("i" + id.trim()); //$NON-NLS-1$
}
fBreakpointToGroupMap.put(bpIdStr, groupIdList.toArray(new String[groupIdList.size()]));
}
}
}
}
}
}