/// <summary>
/// Prints the current exception settings.
/// </summary>
public override void Print()
{
CommandBase.WriteOutput("(ex) <Exception Type> Exception:");
if (m_items.Count == 0)
{
// behavior for specific exception types has not been specified - just print default behavior
switch (m_default)
{
case DebuggerBehavior.Stop:
CommandBase.WriteOutput(" Stop on all exceptions");
break;
default:
CommandBase.WriteOutput(" " + Enum.GetName(typeof(DebuggerBehavior), m_default)
+ " all exceptions");
break;
}
}
else
{
// print default behavior and all other settings specified, in order of increasing precedence
CommandBase.WriteOutput("Default: " + Enum.GetName(typeof(DebuggerBehavior), m_default));
foreach (ExceptionStopOptionPolicyItem item in m_items)
{
CommandBase.WriteOutput(item.ExceptionType + ": " +
Enum.GetName(typeof(DebuggerBehavior), item.Behavior));
}
}
}
//////////////////////////////////////////////////////////////////////////////////
//
// Private implementation
//
//////////////////////////////////////////////////////////////////////////////////
/* // NOT USED by O2MDbg
* private int RunInputLoop()
* {
* // Run the event loop
* string input;
* IMDbgCommand cmd = null;
* string cmdArgs = null;
*
* int stopCount = -1;
*
* while (true)
* {
* Thread.Sleep(1000);
* Debug.WriteLine("MSdn Shell, waiting for commands");
* }
*
* while (m_run && IO.ReadCommand(out input))
* {
* try
* {
* if (Debugger.Processes.HaveActive)
* {
* stopCount = Debugger.Processes.Active.StopCounter;
* }
*
* if (input.Length == 0)
* {
* if (cmd == null || !cmd.IsRepeatable)
* {
* continue;
* }
* }
* else
* {
* Commands.ParseCommand(input, out cmd, out cmdArgs);
* }
* cmd.Execute(cmdArgs);
*
* int newStopCount = Debugger.Processes.HaveActive
* ? Debugger.Processes.Active.StopCounter
* : Int32.MaxValue;
* bool movementCommand = newStopCount > stopCount;
* stopCount = newStopCount;
*
* if (OnCommandExecuted != null)
* {
* OnCommandExecuted(this, new CommandExecutedEventArgs(this, cmd, cmdArgs, movementCommand));
* }
*
* newStopCount = Debugger.Processes.HaveActive
* ? Debugger.Processes.Active.StopCounter
* : Int32.MaxValue;
* movementCommand = newStopCount > stopCount;
*
* while (newStopCount > stopCount)
* {
* stopCount = newStopCount;
*
* if (OnCommandExecuted != null)
* {
* OnCommandExecuted(this, new CommandExecutedEventArgs(this, null, null, movementCommand));
* }
*
* newStopCount = Debugger.Processes.HaveActive
* ? Debugger.Processes.Active.StopCounter
* : Int32.MaxValue;
* movementCommand = newStopCount > stopCount;
* }
* stopCount = newStopCount;
* }
* catch (Exception e)
* {
* ReportException(e);
* }
* } // end while
* return m_exitCode;
* }
*/
private void PrintCurrentException()
{
MDbgValue ex = Debugger.Processes.Active.Threads.Active.CurrentException;
CommandBase.WriteOutput("Exception=" + ex.GetStringValue(0));
foreach (MDbgValue f in ex.GetFields())
{
string outputType;
string outputValue;
if (f.Name == "_xptrs" || f.Name == "_xcode" || f.Name == "_stackTrace" ||
f.Name == "_remoteStackTraceString" || f.Name == "_remoteStackIndex" ||
f.Name == "_exceptionMethodString")
{
outputType = MDbgOutputConstants.Ignore;
}
else
{
outputType = MDbgOutputConstants.StdOutput;
}
outputValue = f.GetStringValue(0);
// remove new line characters in string
if (outputValue != null && (f.Name == "_exceptionMethodString" || f.Name == "_remoteStackTraceString"))
{
outputValue = outputValue.Replace('\n', '#');
}
CommandBase.WriteOutput(outputType, "\t" + f.Name + "=" + outputValue);
}
}
/// <summary>
/// Acts on the debugger callback, based on the stop option policy settings and the
/// type of exception thrown.
/// </summary>
/// <param name="currentProcess">Current MDbgProcess.</param>
/// <param name="args">Callback arguments.</param>
public override void ActOnCallback(MDbgProcess currentProcess, CustomPostCallbackEventArgs args)
{
var ea = args.CallbackArgs as CorException2EventArgs;
var ua = args.CallbackArgs as CorExceptionUnwind2EventArgs;
bool bException2 = (ea != null);
if (m_exceptionEnhancedOn ||
(bException2 && (ea.EventType == CorDebugExceptionCallbackType.DEBUG_EXCEPTION_FIRST_CHANCE)))
{
MDbgThread currentThread = null;
currentThread =
currentProcess.Threads.GetThreadFromThreadId((args.CallbackArgs as CorThreadEventArgs).Thread.Id);
string exceptionType = currentThread.CurrentException.TypeName;
switch (DetermineBehavior(exceptionType))
{
case DebuggerBehavior.Stop:
if (bException2)
{
args.Controller.Stop(ea.Thread, new ExceptionThrownStopReason(ea.AppDomain,
ea.Thread, ea.Frame, ea.Offset,
ea.EventType, ea.Flags,
m_exceptionEnhancedOn));
}
else
{
args.Controller.Stop(ua.Thread, new ExceptionUnwindStopReason(ua.AppDomain,
ua.Thread, ua.EventType,
ua.Flags));
}
break;
case DebuggerBehavior.Log:
CommandBase.WriteOutput("Exception thrown: " + currentThread.CurrentException.TypeName +
" at function " + currentThread.CurrentFrame.Function.FullName +
" in source file " + currentThread.CurrentSourcePosition.Path +
":" + currentThread.CurrentSourcePosition.Line);
if (m_exceptionEnhancedOn)
{
if (bException2)
{
CommandBase.WriteOutput("Event type: " + ea.EventType);
}
else
{
CommandBase.WriteOutput("Event type: " + ua.EventType);
}
}
CommandBase.WriteOutput("");
break;
}
}
}
/// <summary>
/// Prints the stop option policy.
/// </summary>
public override void Print()
{
string output = "(" + Acronym + ") " + m_fullName + ": ";
int length = output.Length;
var sb = new StringBuilder(output);
for (int i = 0; i < 25 - length; i++)
{
//to ensure proper spacing
sb.Append(" ");
}
CommandBase.WriteOutput(sb + Enum.GetName(typeof(DebuggerBehavior), m_behavior));
}
/// <summary>
/// Acts on the current callback, based on the current debugger behavior for this stop
/// option policy.
/// </summary>
/// <param name="currentProcess">Current MDbgProcess.</param>
/// <param name="args">Callback arguments.</param>
public override void ActOnCallback(MDbgProcess currentProcess, CustomPostCallbackEventArgs args)
{
var eventArgs = args.CallbackArgs as CorEventArgs;
switch (m_behavior)
{
case DebuggerBehavior.Stop:
args.Controller.Stop(eventArgs.Thread,
MDbgUtil.CreateStopReasonFromEventArgs(eventArgs, currentProcess));
break;
case DebuggerBehavior.Log:
CommandBase.WriteOutput(eventArgs + "\n");
break;
}
}
public virtual void DisplayCurrentLocation()
{
if (!Debugger.Processes.HaveActive)
{
CommandBase.WriteOutput("STOP: Process Exited");
return; // don't try to display current location
}
else
{
if (false == Debugger.Processes.HaveActive)
{
return;
}
//Debug.Assert(Debugger.Processes.HaveActive);
Object stopReason = Debugger.Processes.Active.StopReason;
if (stopReason == null)
{
return;
}
Type stopReasonType = stopReason.GetType();
if (stopReasonType == typeof(StepCompleteStopReason))
{
// just ignore those
}
else if (stopReasonType == typeof(ThreadCreatedStopReason))
{
CommandBase.WriteOutput("STOP: Thread Created");
}
else if (stopReasonType == typeof(BreakpointHitStopReason))
{
MDbgBreakpoint b = (stopReason as BreakpointHitStopReason).Breakpoint;
if (b.Number == 0) // specal case to keep compatibility with our test scripts.
{
CommandBase.WriteOutput("STOP: Breakpoint Hit");
}
else
{
CommandBase.WriteOutput(String.Format(CultureInfo.InvariantCulture, "STOP: Breakpoint {0} Hit",
new Object[] { b.Number }));
}
}
else if (stopReasonType == typeof(ExceptionThrownStopReason))
{
var ex = (ExceptionThrownStopReason)stopReason;
CommandBase.WriteOutput("STOP: Exception thrown");
PrintCurrentException();
if (Debugger.Options.StopOnExceptionEnhanced ||
ex.ExceptionEnhancedOn)
{
// when we are in ExceptionEnhanced mode, we print more information
CommandBase.WriteOutput("\tOffset: " + ex.Offset);
CommandBase.WriteOutput("\tEventType: " + ex.EventType);
CommandBase.WriteOutput("\tIntercept: " + (ex.Flags != 0));
}
}
else if (stopReasonType == typeof(UnhandledExceptionThrownStopReason))
{
CommandBase.WriteOutput("STOP: Unhandled Exception thrown");
PrintCurrentException();
CommandBase.WriteOutput("");
CommandBase.WriteOutput("This is unhandled exception, continuing will end the process");
}
else if (stopReasonType == typeof(ExceptionUnwindStopReason))
{
CommandBase.WriteOutput("STOP: Exception unwind");
CommandBase.WriteOutput("EventType: " + (stopReason as ExceptionUnwindStopReason).EventType);
}
else if (stopReasonType == typeof(ModuleLoadedStopReason))
{
CommandBase.WriteOutput("STOP: Module loaded: " +
(stopReason as ModuleLoadedStopReason).Module.CorModule.Name);
}
else if (stopReasonType == typeof(AssemblyLoadedStopReason))
{
CommandBase.WriteOutput("STOP: Assembly loaded: " +
(stopReason as AssemblyLoadedStopReason).Assembly.Name);
}
else if (stopReasonType == typeof(MDANotificationStopReason))
{
CorMDA mda = (stopReason as MDANotificationStopReason).CorMDA;
CommandBase.WriteOutput("STOP: MDANotification");
CommandBase.WriteOutput("Name=" + mda.Name);
CommandBase.WriteOutput("XML=" + mda.XML);
}
else if (stopReasonType == typeof(MDbgErrorStopReason))
{
CommandBase.WriteOutput("STOP: MdbgErorr: " +
(stopReason as MDbgErrorStopReason).ExceptionThrown.Message);
#if DEBUG
CommandBase.WriteOutput((stopReason as MDbgErrorStopReason).ExceptionThrown.ToString());
#endif
}
else
{
CommandBase.WriteOutput("STOP " + Debugger.Processes.Active.StopReason);
}
}
if (!Debugger.Processes.Active.Threads.HaveActive)
{
return; // we won't try to show current location
}
MDbgThread thr = Debugger.Processes.Active.Threads.Active;
//DC
DI.o2MDbg.currentLocation = new O2MDbgCurrentLocation(thr);
MDbgSourcePosition pos = thr.CurrentSourcePosition;
if (pos == null)
{
MDbgFrame f = thr.CurrentFrame;
if (f.IsManaged)
{
CorDebugMappingResult mappingResult;
uint ip;
f.CorFrame.GetIP(out ip, out mappingResult);
string s = "IP: " + ip + " @ " + f.Function.FullName + " - " + mappingResult;
CommandBase.WriteOutput(s);
}
else
{
CommandBase.WriteOutput("<Located in native code.>");
}
}
else
{
string fileLoc = FileLocator.GetFileLocation(pos.Path);
if (fileLoc == null)
{
// Using the full path makes debugging output inconsistant during automated test runs.
// For testing purposes we'll get rid of them.
//CommandBase.WriteOutput("located at line "+pos.Line + " in "+ pos.Path);
CommandBase.WriteOutput("located at line " + pos.Line + " in " + Path.GetFileName(pos.Path));
}
else
{
IMDbgSourceFile file = SourceFileMgr.GetSourceFile(fileLoc);
string prefixStr = pos.Line.ToString(CultureInfo.InvariantCulture) + ":";
if (pos.Line < 1 || pos.Line > file.Count)
{
CommandBase.WriteOutput("located at line " + pos.Line + " in " + pos.Path);
throw new MDbgShellException(
string.Format("Could not display current location; file {0} doesn't have line {1}.",
file.Path, pos.Line));
}
Debug.Assert((pos.Line > 0) && (pos.Line <= file.Count));
string lineContent = file[pos.Line];
if (pos.StartColumn == 0 && pos.EndColumn == 0 ||
!(CommandBase.Shell.IO is IMDbgIO2)) // or we don't have support for IMDbgIO2
{
// we don't know location in the line
CommandBase.Shell.IO.WriteOutput(MDbgOutputConstants.StdOutput, prefixStr + lineContent + "\n");
}
else
{
int hiStart;
if (pos.StartColumn > 0)
{
hiStart = pos.StartColumn - 1;
}
else
{
hiStart = 0;
}
int hiLen;
if (pos.EndColumn == 0 || // we don't know ending position
(pos.EndLine > pos.StartLine)) // multi-line statement, select whole 1st line
{
hiLen = lineContent.Length;
}
else
{
hiLen = pos.EndColumn - 1 - hiStart;
}
Debug.Assert(CommandBase.Shell.IO is IMDbgIO2); // see if condition above
(CommandBase.Shell.IO as IMDbgIO2).WriteOutput(MDbgOutputConstants.StdOutput,
prefixStr + lineContent + "\n",
hiStart + prefixStr.Length, hiLen);
}
}
}
}
/// <summary>
/// Prints whether the ExceptionEnhanced switch of the associated ExceptionStopOptionPolicy object
/// is turned on or off.
/// </summary>
public override void Print()
{
CommandBase.WriteOutput("(ee) ExceptionEnhanced: " + m_esop.ExceptionEnhancedOn);
}