public GdbCommandResult RunCommand(string command, params string[] args)
{
lock (gdbLock) {
lock (syncLock) {
lastResult = null;
lock (eventLock) {
running = true;
}
if (logGdb)
{
Console.WriteLine("gdb<: " + command + " " + string.Join(" ", args));
}
sin.WriteLine(command + " " + string.Join(" ", args));
if (!Monitor.Wait(syncLock, 4000))
{
throw new InvalidOperationException("Command execution timeout.");
}
if (lastResult.Status == CommandStatus.Error)
{
throw new InvalidOperationException(lastResult.ErrorMessage);
}
return(lastResult);
}
}
}
bool CheckBreakpoint(int handle)
{
BreakEventInfo binfo;
if (!breakpoints.TryGetValue(handle, out binfo))
{
return(true);
}
Breakpoint bp = (Breakpoint)binfo.BreakEvent;
if (!string.IsNullOrEmpty(bp.ConditionExpression) && bp.BreakIfConditionChanges)
{
// Update the condition expression
GdbCommandResult res = RunCommand("-data-evaluate-expression", Escape(bp.ConditionExpression));
string val = res.GetValue("value");
RunCommand("-break-condition", handle.ToString(), "(" + bp.ConditionExpression + ") != " + val);
}
if (bp.HitAction == HitAction.PrintExpression)
{
GdbCommandResult res = RunCommand("-data-evaluate-expression", Escape(bp.TraceExpression));
string val = res.GetValue("value");
NotifyBreakEventUpdate(binfo, 0, val);
return(false);
}
return(true);
}
public StackFrame[] GetStackFrames(int firstIndex, int lastIndex)
{
List <StackFrame> frames = new List <StackFrame> ();
if (firstIndex == 0 && firstFrame != null)
{
frames.Add(firstFrame);
firstIndex++;
}
if (lastIndex >= fcount)
{
lastIndex = fcount - 1;
}
if (firstIndex > lastIndex)
{
return(frames.ToArray());
}
session.SelectThread(threadId);
GdbCommandResult res = session.RunCommand("-stack-list-frames", firstIndex.ToString(), lastIndex.ToString());
ResultData stack = res.GetObject("stack");
for (int n = 0; n < stack.Count; n++)
{
ResultData frd = stack.GetObject(n);
frames.Add(CreateFrame(frd.GetObject("frame")));
}
return(frames.ToArray());
}
protected override Backtrace OnGetThreadBacktrace(long processId, long threadId)
{
ResultData data = SelectThread(threadId);
GdbCommandResult res = RunCommand("-stack-info-depth");
int fcount = int.Parse(res.GetValue("depth"));
GdbBacktrace bt = new GdbBacktrace(this, threadId, fcount, data != null ? data.GetObject("frame") : null);
return(new Backtrace(bt));
}
void ProcessOutput(string line)
{
if (logGdb)
{
Console.WriteLine("dbg>: '" + line + "'");
}
switch (line [0])
{
case '^':
lock (syncLock) {
lastResult = new GdbCommandResult(line);
running = (lastResult.Status == CommandStatus.Running);
Monitor.PulseAll(syncLock);
}
break;
case '~':
case '&':
if (line.Length > 1 && line[1] == '"')
{
line = line.Substring(2, line.Length - 5);
}
ThreadPool.QueueUserWorkItem(delegate {
OnTargetOutput(false, line + "\n");
});
break;
case '*':
GdbEvent ev;
lock (eventLock) {
running = false;
ev = new GdbEvent(line);
string ti = ev.GetValue("thread-id");
if (ti != null && ti != "all")
{
currentThread = activeThread = int.Parse(ti);
}
Monitor.PulseAll(eventLock);
if (internalStop)
{
internalStop = false;
return;
}
}
ThreadPool.QueueUserWorkItem(delegate {
try {
HandleEvent(ev);
} catch (Exception ex) {
Console.WriteLine(ex);
}
});
break;
}
}
ObjectValue CreateVarObject(string exp)
{
try {
session.SelectThread(threadId);
exp = exp.Replace("\"", "\\\"");
GdbCommandResult res = session.RunCommand("-var-create", "-", "*", "\"" + exp + "\"");
string vname = res.GetValue("name");
session.RegisterTempVariableObject(vname);
return(CreateObjectValue(exp, res));
} catch {
return(ObjectValue.CreateUnknown(exp));
}
}
public ObjectValue[] GetParameters(int frameIndex, EvaluationOptions options)
{
List <ObjectValue> values = new List <ObjectValue> ();
SelectFrame(frameIndex);
GdbCommandResult res = session.RunCommand("-stack-list-arguments", "0", frameIndex.ToString(), frameIndex.ToString());
foreach (ResultData data in res.GetObject("stack-args").GetObject(0).GetObject("frame").GetObject("args"))
{
values.Add(CreateVarObject(data.GetValue("name")));
}
return(values.ToArray());
}
protected override void OnFinish()
{
SelectThread(activeThread);
GdbCommandResult res = RunCommand("-stack-info-depth", "2");
if (res.GetValue("depth") == "1")
{
RunCommand("-exec-continue");
}
else
{
RunCommand("-stack-select-frame", "0");
RunCommand("-exec-finish");
}
}
public ObjectValue[] GetLocalVariables(int frameIndex, EvaluationOptions options)
{
List <ObjectValue> values = new List <ObjectValue> ();
SelectFrame(frameIndex);
GdbCommandResult res = session.RunCommand("-stack-list-locals", "0");
foreach (ResultData data in res.GetObject("locals"))
{
values.Add(CreateVarObject(data.GetValue("name")));
}
return(values.ToArray());
}
public ObjectValue[] GetChildren(ObjectPath path, int index, int count, EvaluationOptions options)
{
List <ObjectValue> children = new List <ObjectValue> ();
session.SelectThread(threadId);
GdbCommandResult res = session.RunCommand("-var-list-children", "2", path.Join("."));
ResultData cdata = res.GetObject("children");
// The response may not contain the "children" list at all.
if (cdata == null)
{
return(children.ToArray());
}
if (index == -1)
{
index = 0;
count = cdata.Count;
}
for (int n = index; n < cdata.Count && n < index + count; n++)
{
ResultData data = cdata.GetObject(n);
ResultData child = data.GetObject("child");
string name = child.GetValue("exp");
if (name.Length > 0 && char.IsNumber(name [0]))
{
name = "[" + name + "]";
}
// C++ structures may contain typeless children named
// "public", "private" and "protected".
if (child.GetValue("type") == null)
{
ObjectPath childPath = new ObjectPath(child.GetValue("name").Split('.'));
ObjectValue[] subchildren = GetChildren(childPath, -1, -1, options);
children.AddRange(subchildren);
}
else
{
ObjectValue val = CreateObjectValue(name, child);
children.Add(val);
}
}
return(children.ToArray());
}
void FireTargetEvent(TargetEventType type, ResultData curFrame)
{
UpdateHitCountData();
TargetEventArgs args = new TargetEventArgs(type);
if (type != TargetEventType.TargetExited)
{
GdbCommandResult res = RunCommand("-stack-info-depth");
int fcount = int.Parse(res.GetValue("depth"));
GdbBacktrace bt = new GdbBacktrace(this, activeThread, fcount, curFrame);
args.Backtrace = new Backtrace(bt);
args.Thread = GetThread(activeThread);
}
OnTargetEvent(args);
}
void UpdateHitCountData()
{
foreach (BreakEventInfo bp in breakpointsWithHitCount)
{
GdbCommandResult res = RunCommand("-break-info", bp.Handle.ToString());
string val = res.GetObject("BreakpointTable").GetObject("body").GetObject(0).GetObject("bkpt").GetValue("ignore");
if (val != null)
{
NotifyBreakEventUpdate(bp, int.Parse(val), null);
}
else
{
NotifyBreakEventUpdate(bp, 0, null);
}
}
breakpointsWithHitCount.Clear();
}
public GdbCommandResult RunCommand (string command, params string[] args)
{
lock (gdbLock) {
lock (syncLock) {
lastResult = null;
lock (eventLock) {
running = true;
}
command = command + " " + string.Join (" ", args);
if (logGdb)
LoggingService.LogInfo ("gdb<: {0}",command);
sin.WriteLine (command);
if (!Monitor.Wait (syncLock, CommandTimeout))
throw new GdbException (command,"Command execution timeout.");
if (lastResult.Status == CommandStatus.Error)
throw new GdbException (command,lastResult.ErrorMessage);
return lastResult;
}
}
}
protected override object OnInsertBreakEvent(BreakEvent be, bool activate)
{
Breakpoint bp = be as Breakpoint;
if (bp == null)
{
return(null);
}
lock (gdbLock) {
bool dres = InternalStop();
try {
string extraCmd = string.Empty;
if (bp.HitCount > 0)
{
extraCmd += "-i " + bp.HitCount;
breakpointsWithHitCount.Add(bp);
}
if (!string.IsNullOrEmpty(bp.ConditionExpression))
{
if (!bp.BreakIfConditionChanges)
{
extraCmd += " -c " + bp.ConditionExpression;
}
}
// Breakpoint locations must be double-quoted if files contain spaces.
// For example: -break-insert "\"C:/Documents and Settings/foo.c\":17"
RunCommand("-environment-directory", Escape(Path.GetDirectoryName(bp.FileName)));
GdbCommandResult res = null;
string errorMsg = null;
try {
res = RunCommand("-break-insert", extraCmd.Trim(), Escape(Escape(bp.FileName) + ":" + bp.Line));
} catch (Exception ex) {
errorMsg = ex.Message;
}
if (res == null)
{
try {
res = RunCommand("-break-insert", extraCmd.Trim(), Escape(Escape(Path.GetFileName(bp.FileName)) + ":" + bp.Line));
}
catch {
// Ignore
}
}
if (res == null)
{
OnDebuggerOutput(true, "Could not set breakpoint: " + errorMsg);
return(null);
}
int bh = res.GetObject("bkpt").GetInt("number");
if (!activate)
{
RunCommand("-break-disable", bh.ToString());
}
breakpoints [bh] = bp;
return(bh);
} finally {
InternalResume(dres);
}
}
}
public GdbCommandResult RunCommand (string command, params string[] args)
{
lock (gdbLock) {
lock (syncLock) {
lastResult = null;
lock (eventLock) {
running = true;
}
if (logGdb)
Console.WriteLine ("gdb<: " + command + " " + string.Join (" ", args));
sin.WriteLine (command + " " + string.Join (" ", args));
if (!Monitor.Wait (syncLock, 4000))
throw new InvalidOperationException ("Command execution timeout.");
if (lastResult.Status == CommandStatus.Error)
throw new InvalidOperationException (lastResult.ErrorMessage);
return lastResult;
}
}
}
void ProcessOutput (string line)
{
if (logGdb)
Console.WriteLine ("dbg>: '" + line + "'");
switch (line [0]) {
case '^':
lock (syncLock) {
lastResult = new GdbCommandResult (line);
running = (lastResult.Status == CommandStatus.Running);
Monitor.PulseAll (syncLock);
}
break;
case '~':
case '&':
if (line.Length > 1 && line[1] == '"')
line = line.Substring (2, line.Length - 5);
ThreadPool.QueueUserWorkItem (delegate {
OnTargetOutput (false, line + "\n");
});
break;
case '*':
GdbEvent ev;
lock (eventLock) {
running = false;
ev = new GdbEvent (line);
string ti = ev.GetValue ("thread-id");
if (ti != null && ti != "all")
currentThread = activeThread = int.Parse (ti);
Monitor.PulseAll (eventLock);
if (internalStop) {
internalStop = false;
return;
}
}
ThreadPool.QueueUserWorkItem (delegate {
try {
HandleEvent (ev);
} catch (Exception ex) {
Console.WriteLine (ex);
}
});
break;
}
}
public CompletionData GetExpressionCompletionData(int frameIndex, string exp)
{
SelectFrame(frameIndex);
bool pointer = exp.EndsWith("->");
int i;
if (pointer || exp.EndsWith("."))
{
exp = exp.Substring(0, exp.Length - (pointer ? 2 : 1));
i = 0;
while (i < exp.Length)
{
ObjectValue val = CreateVarObject(exp);
if (!val.IsUnknown && !val.IsError)
{
CompletionData data = new CompletionData();
foreach (ObjectValue cv in val.GetAllChildren())
{
data.Items.Add(new CompletionItem(cv.Name, cv.Flags));
}
data.ExpressionLenght = 0;
return(data);
}
i++;
}
return(null);
}
i = exp.Length - 1;
bool lastWastLetter = false;
while (i >= 0)
{
char c = exp [i--];
if (!char.IsLetterOrDigit(c) && c != '_')
{
break;
}
lastWastLetter = !char.IsDigit(c);
}
if (lastWastLetter)
{
string partialWord = exp.Substring(i + 1);
CompletionData cdata = new CompletionData();
cdata.ExpressionLenght = partialWord.Length;
// Local variables
GdbCommandResult res = session.RunCommand("-stack-list-locals", "0");
foreach (ResultData data in res.GetObject("locals"))
{
string name = data.GetValue("name");
if (name.StartsWith(partialWord))
{
cdata.Items.Add(new CompletionItem(name, ObjectValueFlags.Variable));
}
}
// Parameters
res = session.RunCommand("-stack-list-arguments", "0", frameIndex.ToString(), frameIndex.ToString());
foreach (ResultData data in res.GetObject("stack-args").GetObject(0).GetObject("frame").GetObject("args"))
{
string name = data.GetValue("name");
if (name.StartsWith(partialWord))
{
cdata.Items.Add(new CompletionItem(name, ObjectValueFlags.Parameter));
}
}
if (cdata.Items.Count > 0)
{
return(cdata);
}
}
return(null);
}
protected override BreakEventInfo OnInsertBreakEvent(BreakEvent be)
{
Breakpoint bp = be as Breakpoint;
if (bp == null)
{
throw new NotSupportedException();
}
BreakEventInfo bi = new BreakEventInfo();
lock (gdbLock) {
bool dres = InternalStop();
try {
string extraCmd = string.Empty;
if (bp.HitCount > 0)
{
extraCmd += "-i " + bp.HitCount;
breakpointsWithHitCount.Add(bi);
}
if (!string.IsNullOrEmpty(bp.ConditionExpression))
{
if (!bp.BreakIfConditionChanges)
{
extraCmd += " -c " + bp.ConditionExpression;
}
}
// Breakpoint locations must be double-quoted if files contain spaces.
// For example: -break-insert "\"C:/Documents and Settings/foo.c\":17"
RunCommand("-environment-directory", Escape(Path.GetDirectoryName(bp.FileName)));
GdbCommandResult res = null;
string errorMsg = null;
try {
res = RunCommand("-break-insert", extraCmd.Trim(), Escape(Escape(bp.FileName) + ":" + bp.Line));
} catch (Exception ex) {
errorMsg = ex.Message;
}
if (res == null)
{
try {
res = RunCommand("-break-insert", extraCmd.Trim(), Escape(Escape(Path.GetFileName(bp.FileName)) + ":" + bp.Line));
}
catch {
// Ignore
}
}
if (res == null)
{
bi.SetStatus(BreakEventStatus.Invalid, errorMsg);
return(bi);
}
int bh = res.GetObject("bkpt").GetInt("number");
if (!be.Enabled)
{
RunCommand("-break-disable", bh.ToString());
}
breakpoints [bh] = bi;
bi.Handle = bh;
bi.SetStatus(BreakEventStatus.Bound, null);
return(bi);
} finally {
InternalResume(dres);
}
}
}
protected virtual void ProcessOutput (string line)
{
if (logGdb)
LoggingService.LogInfo ("dbg>: {0}",line);
switch (line [0]) {
case '^':
lock (syncLock) {
lastResult = new GdbCommandResult (line);
running = (lastResult.Status == CommandStatus.Running);
Monitor.PulseAll (syncLock);
}
break;
case '~':
case '&':
if (line.Length > 1 && line[1] == '"')
line = line.Substring (2, line.Length - 5);
Ide.DispatchService.GuiDispatch(delegate {
OnTargetOutput (false, line + "\n");
});
break;
case '*':
GdbEvent ev;
lock (eventLock) {
running = false;
ev = new GdbEvent (line);
string ti = ev.GetValueString ("thread-id");
if (ti != null && ti != "all")
currentThread = activeThread = int.Parse (ti);
Monitor.PulseAll (eventLock);
if (internalStop) {
internalStop = false;
return;
}
}
ThreadPool.QueueUserWorkItem (delegate {
try {
HandleEvent (ev);
} catch (Exception ex) {
LoggingService.LogError("Error while processing gdb output", ex);
}
});
break;
}
}
