public async Task <ILldbAttachedProgram> LaunchAsync(
ICancelable task, IDebugProcess2 process, Guid programId, uint?attachPid,
DebuggerOptions.DebuggerOptions debuggerOptions, HashSet <string> libPaths,
GrpcConnection grpcConnection, int localDebuggerPort, string targetIpAddress,
int targetPort, IDebugEventCallback2 callback)
{
var launchSucceeded = false;
Stopwatch launchTimer = Stopwatch.StartNew();
// This should be the first request to the DebuggerGrpcServer. Providing a retry wait
// time allows us to connect to a DebuggerGrpcServer that is slow to start. Note that
// we postpone sourcing .lldbinit until we are done with our initialization so that
// the users can override our defaults.
var lldbDebugger =
_lldbDebuggerFactory.Create(grpcConnection, false, TimeSpan.FromSeconds(10));
if (lldbDebugger == null)
{
throw new AttachException(VSConstants.E_ABORT, ErrorStrings.FailedToCreateDebugger);
}
if (debuggerOptions[DebuggerOption.CLIENT_LOGGING] == DebuggerOptionState.ENABLED)
{
lldbDebugger.EnableLog("lldb", new List <string> {
"default", "module"
});
// TODO: Disable 'dwarf' logs until we can determine why this
// causes LLDB to hang.
// lldbDebugger.EnableLog("dwarf", new List<string> { "default" });
}
if (_fastExpressionEvaluation)
{
lldbDebugger.EnableFastExpressionEvaluation();
}
lldbDebugger.SetDefaultLLDBSettings();
// Apply .lldbinit after we set our settings so that the user can override our
// defaults with a custom .lldbinit.
LoadLocalLldbInit(lldbDebugger);
// Add exec search paths, so that LLDB can find the executable and any dependent
// libraries. If LLDB is able to find the files locally, it won't try to download
// them from the remote server, saving valuable time on attach.
foreach (string path in libPaths)
{
lldbDebugger.SetLibrarySearchPath(path);
}
lldbDebugger.SetAsync(true);
SbPlatform lldbPlatform;
switch (_launchOption)
{
case LaunchOption.AttachToGame:
// Fall through.
case LaunchOption.LaunchGame:
lldbPlatform = CreateRemotePlatform(grpcConnection, lldbDebugger);
if (lldbPlatform == null)
{
throw new AttachException(VSConstants.E_FAIL,
ErrorStrings.FailedToCreateLldbPlatform);
}
task.ThrowIfCancellationRequested();
Trace.WriteLine("Attempting to connect debugger");
task.Progress.Report("Connecting to debugger");
string connectRemoteUrl = $"{_lldbConnectUrl}:{localDebuggerPort}";
string connectRemoteArgument =
CreateConnectRemoteArgument(connectRemoteUrl, targetIpAddress, targetPort);
SbPlatformConnectOptions lldbConnectOptions =
_lldbPlatformConnectOptionsFactory.Create(connectRemoteArgument);
IAction debugerWaitAction =
_actionRecorder.CreateToolAction(ActionType.DebugWaitDebugger);
bool TryConnectRemote()
{
if (lldbPlatform.ConnectRemote(lldbConnectOptions).Success())
{
return(true);
}
VerifyGameIsReady(debugerWaitAction);
return(false);
}
try
{
debugerWaitAction.Record(() => RetryWithTimeout(
task, TryConnectRemote, _launchRetryDelay,
_launchTimeout, launchTimer));
}
catch (TimeoutException e)
{
throw new AttachException(
VSConstants.E_ABORT,
ErrorStrings.FailedToConnectDebugger(lldbConnectOptions.GetUrl()), e);
}
Trace.WriteLine("LLDB successfully connected");
break;
case LaunchOption.AttachToCore:
lldbPlatform = _lldbPlatformFactory.Create(_localLldbPlatformName, grpcConnection);
if (lldbPlatform == null)
{
throw new AttachException(VSConstants.E_FAIL,
ErrorStrings.FailedToCreateLldbPlatform);
}
break;
default:
throw new AttachException(VSConstants.E_ABORT, ErrorStrings.InvalidLaunchOption(
_launchOption.ToString()));
}
lldbDebugger.SetSelectedPlatform(lldbPlatform);
task.ThrowIfCancellationRequested();
task.Progress.Report("Debugger is attaching (this can take a while)");
RemoteTarget lldbTarget = null;
if (_launchOption == LaunchOption.LaunchGame &&
!string.IsNullOrEmpty(_executableFullPath))
{
var createExecutableTargetAction =
_actionRecorder.CreateToolAction(ActionType.DebugCreateExecutableTarget);
createExecutableTargetAction.Record(
() => lldbTarget = CreateTarget(lldbDebugger, _executableFullPath));
}
else
{
lldbTarget = CreateTarget(lldbDebugger, "");
}
var lldbListener = CreateListener(grpcConnection);
// This is required to catch breakpoint change events.
lldbTarget.AddListener(lldbListener, EventType.STATE_CHANGED);
var listenerSubscriber = new LldbListenerSubscriber(lldbListener);
var eventHandler = new EventHandler <FileUpdateReceivedEventArgs>(
(s, e) => ListenerSubscriberOnFileUpdateReceived(task, e));
listenerSubscriber.FileUpdateReceived += eventHandler;
listenerSubscriber.Start();
try
{
if (_launchOption == LaunchOption.AttachToCore)
{
var loadCoreAction = _actionRecorder.CreateToolAction(ActionType.DebugLoadCore);
SbProcess lldbDebuggerProcess = null;
loadCoreAction.Record(() =>
lldbDebuggerProcess = LoadCore(lldbTarget, loadCoreAction));
await _taskContext.Factory.SwitchToMainThreadAsync();
return(_attachedProgramFactory.Create(
process, programId, _debugEngine, callback, lldbDebugger, lldbTarget,
listenerSubscriber, lldbDebuggerProcess,
lldbDebugger.GetCommandInterpreter(), true, new NullExceptionManager(),
_moduleSearchLogHolder, remotePid: 0));
}
// Get process ID.
uint processId = 0;
switch (_launchOption)
{
case LaunchOption.AttachToGame:
if (!attachPid.HasValue)
{
throw new AttachException(VSConstants.E_ABORT,
ErrorStrings.FailedToRetrieveProcessId);
}
processId = attachPid.Value;
break;
case LaunchOption.LaunchGame:
// Since we have no way of knowing when the remote process actually
// starts, try a few times to get the pid.
IAction debugWaitAction =
_actionRecorder.CreateToolAction(ActionType.DebugWaitProcess);
bool TryGetRemoteProcessId()
{
if (GetRemoteProcessId(_executableFileName, lldbPlatform, out processId))
{
return(true);
}
VerifyGameIsReady(debugWaitAction);
return(false);
}
try
{
debugWaitAction.Record(() => RetryWithTimeout(
task, TryGetRemoteProcessId, _launchRetryDelay,
_launchTimeout, launchTimer));
}
catch (TimeoutException e)
{
throw new AttachException(VSConstants.E_ABORT,
ErrorStrings.FailedToRetrieveProcessId, e);
}
break;
}
Trace.WriteLine("Attaching to pid " + processId);
var debugAttachAction = _actionRecorder.CreateToolAction(ActionType.DebugAttach);
SbProcess debuggerProcess = null;
debugAttachAction.Record(() => {
var moduleFileLoadRecorder =
_moduleFileLoadRecorderFactory.Create(debugAttachAction);
moduleFileLoadRecorder.RecordBeforeLoad(Array.Empty <SbModule>());
debuggerProcess = lldbTarget.AttachToProcessWithID(lldbListener, processId,
out SbError lldbError);
if (lldbError.Fail())
{
throw new AttachException(
VSConstants.E_ABORT,
GetLldbAttachErrorDetails(lldbError, lldbPlatform, processId));
}
RecordModules(lldbTarget, moduleFileLoadRecorder);
});
var exceptionManager = _exceptionManagerFactory.Create(debuggerProcess);
await _taskContext.Factory.SwitchToMainThreadAsync();
ILldbAttachedProgram attachedProgram = _attachedProgramFactory.Create(
process, programId, _debugEngine, callback, lldbDebugger, lldbTarget,
listenerSubscriber, debuggerProcess, lldbDebugger.GetCommandInterpreter(),
false, exceptionManager, _moduleSearchLogHolder, processId);
launchSucceeded = true;
return(attachedProgram);
}
finally
{
// clean up the SBListener subscriber
listenerSubscriber.FileUpdateReceived -= eventHandler;
// stop the SBListener subscriber completely if the game failed to launch
if (!launchSucceeded)
{
listenerSubscriber.Stop();
}
}
}