public void Launch(string workingDirectory, Logger logger)
{
_terminalProcess = new Process
{
StartInfo =
{
CreateNoWindow = false,
UseShellExecute = false,
WorkingDirectory = workingDirectory,
FileName = GetProcessExecutable(),
Arguments = GetProcessArgs(),
// Redirect stdout and stderr to logging
// or else it will send to the default stdout and stderr
RedirectStandardOutput = true,
RedirectStandardError = true
}
};
_terminalProcess.OutputDataReceived += (sender, e) =>
{
UnixUtilities.OutputNonEmptyString(e.Data, "term-stdout: ", logger);
};
_terminalProcess.ErrorDataReceived += (sender, e) =>
{
UnixUtilities.OutputNonEmptyString(e.Data, "term-stderr:", logger);
};
SetNewProcessEnvironment(_terminalProcess.StartInfo);
_terminalProcess.Start();
_terminalProcess.BeginOutputReadLine();
_terminalProcess.BeginErrorReadLine();
}
/// <summary>
/// Kills the pipe process and its child processes.
/// It maybe the debugger itself it is local.
/// </summary>
/// <param name="p">Process to kill.</param>
private void KillPipeProcessAndChildren(Process p)
{
UnixUtilities.KillProcessTree(p);
if (!p.HasExited)
{
p.Kill();
}
}
internal static string GetDebuggerCommand(LocalLaunchOptions localOptions)
{
string quotedDebuggerPath = String.Format(CultureInfo.InvariantCulture, "\"{0}\"", localOptions.MIDebuggerPath);
if (PlatformUtilities.IsLinux())
{
string debuggerPathCorrectElevation = quotedDebuggerPath;
string prompt = string.Empty;
// If running as root, make sure the new console is also root.
bool isRoot = UnixNativeMethods.GetEUid() == 0;
// If the system doesn't allow a non-root process to attach to another process, try to run GDB as root
if (localOptions.ProcessId.HasValue && !isRoot && UnixUtilities.GetRequiresRootAttach(localOptions.DebuggerMIMode))
{
prompt = String.Format(CultureInfo.CurrentCulture, "echo -n '{0}'; read yn; if [ \"$yn\" != 'y' ] && [ \"$yn\" != 'Y' ] ; then exit 1; fi; ", MICoreResources.Warn_AttachAsRootProcess);
// Prefer pkexec for a nice graphical prompt, but fall back to sudo if it's not available
if (File.Exists(UnixUtilities.PKExecPath))
{
debuggerPathCorrectElevation = String.Concat(UnixUtilities.PKExecPath, " ", debuggerPathCorrectElevation);
}
else if (File.Exists(UnixUtilities.SudoPath))
{
debuggerPathCorrectElevation = String.Concat(UnixUtilities.SudoPath, " ", debuggerPathCorrectElevation);
}
else
{
Debug.Fail("Root required to attach, but no means of elevating available!");
}
}
return(String.Concat(prompt, debuggerPathCorrectElevation));
}
else
{
return(quotedDebuggerPath);
}
}
public override void InitStreams(LaunchOptions options, out StreamReader reader, out StreamWriter writer)
{
LocalLaunchOptions localOptions = (LocalLaunchOptions)options;
// Default working directory is next to the app
string debuggeeDir;
if (Path.IsPathRooted(options.ExePath) && File.Exists(options.ExePath))
{
debuggeeDir = Path.GetDirectoryName(options.ExePath);
}
else
{
// If we don't know where the app is, default to HOME, and if we somehow can't get that, go with the root directory.
debuggeeDir = Environment.GetEnvironmentVariable("HOME");
if (string.IsNullOrEmpty(debuggeeDir))
{
debuggeeDir = "/";
}
}
_dbgStdInName = UnixUtilities.MakeFifo(Logger);
_dbgStdOutName = UnixUtilities.MakeFifo(Logger);
string pidFifo = UnixUtilities.MakeFifo(Logger);
// Used for testing
Logger?.WriteLine(string.Concat("TempFile=", _dbgStdInName));
Logger?.WriteLine(string.Concat("TempFile=", _dbgStdOutName));
Logger?.WriteLine(string.Concat("TempFile=", pidFifo));
// Setup the streams on the fifos as soon as possible.
FileStream dbgStdInStream = new FileStream(_dbgStdInName, FileMode.Open);
FileStream dbgStdOutStream = new FileStream(_dbgStdOutName, FileMode.Open);
FileStream pidStream = new FileStream(pidFifo, FileMode.Open);
string debuggerCmd = UnixUtilities.GetDebuggerCommand(localOptions);
string launchDebuggerCommand = UnixUtilities.LaunchLocalDebuggerCommand(
debuggeeDir,
_dbgStdInName,
_dbgStdOutName,
pidFifo,
debuggerCmd);
// Only pass the environment to launch clrdbg. For other modes, there are commands that set the environment variables
// directly for the debuggee.
ReadOnlyCollection <EnvironmentEntry> environmentForDebugger = localOptions.DebuggerMIMode == MIMode.Clrdbg ?
localOptions.Environment :
new ReadOnlyCollection <EnvironmentEntry>(new EnvironmentEntry[] { });;
TerminalLauncher terminal = TerminalLauncher.MakeTerminal("DebuggerTerminal", launchDebuggerCommand, localOptions.Environment);
terminal.Launch(debuggeeDir);
int shellPid = -1;
using (StreamReader pidReader = new StreamReader(pidStream, Encoding.UTF8, true, UnixUtilities.StreamBufferSize))
{
Task <string> readShellPidTask = pidReader.ReadLineAsync();
if (readShellPidTask.Wait(TimeSpan.FromSeconds(10)))
{
shellPid = int.Parse(readShellPidTask.Result, CultureInfo.InvariantCulture);
// Used for testing
Logger?.WriteLine(string.Concat("ShellPid=", shellPid));
}
else
{
// Something is wrong because we didn't get the pid of shell
ForceDisposeStreamReader(pidReader);
Close();
throw new TimeoutException(MICoreResources.Error_LocalUnixTerminalDebuggerInitializationFailed);
}
_shellProcessMonitor = new ProcessMonitor(shellPid);
_shellProcessMonitor.ProcessExited += ShellExited;
_shellProcessMonitor.Start();
Task <string> readDebuggerPidTask = pidReader.ReadLineAsync();
try
{
readDebuggerPidTask.Wait(_streamReadPidCancellationTokenSource.Token);
_debuggerPid = int.Parse(readDebuggerPidTask.Result, CultureInfo.InvariantCulture);
}
catch (OperationCanceledException)
{
// Something is wrong because we didn't get the pid of the debugger
ForceDisposeStreamReader(pidReader);
Close();
throw new OperationCanceledException(MICoreResources.Error_LocalUnixTerminalDebuggerInitializationFailed);
}
}
// The in/out names are confusing in this case as they are relative to gdb.
// What that means is the names are backwards wrt miengine hence the reader
// being the writer and vice-versa
// Mono seems to hang when the debugger sends a large response unless we specify a larger buffer here
writer = new StreamWriter(dbgStdInStream, new UTF8Encoding(false, true), UnixUtilities.StreamBufferSize);
reader = new StreamReader(dbgStdOutStream, Encoding.UTF8, true, UnixUtilities.StreamBufferSize);
}
private bool HasExited()
{
return(!UnixUtilities.IsProcessRunning(_processId));
}
public override async void Init(ITransportCallback transportCallback, LaunchOptions options, Logger logger, HostWaitLoop waitLoop = null)
{
LocalLaunchOptions localOptions = options as LocalLaunchOptions;
Encoding encNoBom = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false);
string commandPipeName;
string outputPipeName;
string pidPipeName;
List <string> cmdArgs = new List <string>();
string windowtitle = FormattableString.Invariant($"cppdbg: {Path.GetFileName(options.ExePath)}");
if (PlatformUtilities.IsWindows())
{
// Create Windows Named pipes
commandPipeName = Utilities.GetMIEngineTemporaryFilename("In");
outputPipeName = Utilities.GetMIEngineTemporaryFilename("Out");
pidPipeName = Utilities.GetMIEngineTemporaryFilename("Pid");
string errorPipeName = Utilities.GetMIEngineTemporaryFilename("Error");
NamedPipeServerStream inputToDebugger = new NamedPipeServerStream(commandPipeName, PipeDirection.Out, 1, PipeTransmissionMode.Byte);
NamedPipeServerStream outputFromDebugger = new NamedPipeServerStream(outputPipeName, PipeDirection.In, 1, PipeTransmissionMode.Byte);
NamedPipeServerStream errorFromDebugger = new NamedPipeServerStream(errorPipeName, PipeDirection.In, 1, PipeTransmissionMode.Byte);
NamedPipeServerStream pidPipe = new NamedPipeServerStream(pidPipeName, PipeDirection.In, 1, PipeTransmissionMode.Byte);
_pidReader = new StreamReader(pidPipe, encNoBom, false, UnixUtilities.StreamBufferSize);
string thisModulePath = typeof(RunInTerminalTransport).GetTypeInfo().Assembly.ManifestModule.FullyQualifiedName;
string launchCommand = Path.Combine(Path.GetDirectoryName(thisModulePath), "WindowsDebugLauncher.exe");
if (!File.Exists(launchCommand))
{
string errorMessage = string.Format(CultureInfo.CurrentCulture, MICoreResources.Error_InternalFileMissing, launchCommand);
transportCallback.OnStdErrorLine(errorMessage);
transportCallback.OnDebuggerProcessExit(null);
return;
}
cmdArgs.Add(launchCommand);
cmdArgs.Add("--stdin=" + commandPipeName);
cmdArgs.Add("--stdout=" + outputPipeName);
cmdArgs.Add("--stderr=" + errorPipeName);
cmdArgs.Add("--pid=" + pidPipeName);
cmdArgs.Add("--dbgExe=" + localOptions.MIDebuggerPath);
cmdArgs.Add(localOptions.GetMiDebuggerArgs());
_waitForConnection = Task.WhenAll(
inputToDebugger.WaitForConnectionAsync(),
outputFromDebugger.WaitForConnectionAsync(),
errorFromDebugger.WaitForConnectionAsync(),
pidPipe.WaitForConnectionAsync());
_commandStream = new StreamWriter(inputToDebugger, encNoBom);
_outputStream = new StreamReader(outputFromDebugger, encNoBom, false, UnixUtilities.StreamBufferSize);
_errorStream = new StreamReader(errorFromDebugger, encNoBom, false, UnixUtilities.StreamBufferSize);
}
else
{
// Do Linux style pipes
commandPipeName = UnixUtilities.MakeFifo(identifier: "In", logger: logger);
outputPipeName = UnixUtilities.MakeFifo(identifier: "Out", logger: logger);
pidPipeName = UnixUtilities.MakeFifo(identifier: "Pid", logger: logger);
// Create filestreams
FileStream stdInStream = new FileStream(commandPipeName, FileMode.Open);
FileStream stdOutStream = new FileStream(outputPipeName, FileMode.Open);
_pidReader = new StreamReader(new FileStream(pidPipeName, FileMode.Open), encNoBom, false, UnixUtilities.StreamBufferSize);
string debuggerCmd = UnixUtilities.GetDebuggerCommand(localOptions);
// Default working directory is next to the app
string debuggeeDir;
if (Path.IsPathRooted(options.ExePath) && File.Exists(options.ExePath))
{
debuggeeDir = Path.GetDirectoryName(options.ExePath);
}
else
{
// If we don't know where the app is, default to HOME, and if we somehow can't get that, go with the root directory.
debuggeeDir = Environment.GetEnvironmentVariable("HOME");
if (string.IsNullOrEmpty(debuggeeDir))
{
debuggeeDir = "/";
}
}
string dbgCmdScript = Path.Combine(Path.GetTempPath(), Utilities.GetMIEngineTemporaryFilename(identifier: "Cmd"));
string launchDebuggerCommand = UnixUtilities.LaunchLocalDebuggerCommand(
debuggeeDir,
commandPipeName,
outputPipeName,
pidPipeName,
dbgCmdScript,
debuggerCmd,
localOptions.GetMiDebuggerArgs());
logger?.WriteTextBlock("DbgCmd:", launchDebuggerCommand);
using (FileStream dbgCmdStream = new FileStream(dbgCmdScript, FileMode.CreateNew))
using (StreamWriter dbgCmdWriter = new StreamWriter(dbgCmdStream, encNoBom)
{
AutoFlush = true
})
{
dbgCmdWriter.WriteLine("#!/bin/sh");
dbgCmdWriter.Write(launchDebuggerCommand);
dbgCmdWriter.Flush();
}
if (PlatformUtilities.IsOSX())
{
string osxLaunchScript = GetOSXLaunchScript();
// Call osascript with a path to the AppleScript. The apple script takes 2 parameters: a title for the terminal and the launch script.
cmdArgs.Add("/usr/bin/osascript");
cmdArgs.Add(osxLaunchScript);
cmdArgs.Add(FormattableString.Invariant($"\"{windowtitle}\""));
cmdArgs.Add(FormattableString.Invariant($"sh {dbgCmdScript} ;")); // needs a semicolon because this command is running through the launchscript.
}
else
{
cmdArgs.Add("sh");
cmdArgs.Add(dbgCmdScript);
}
_outputStream = new StreamReader(stdOutStream, encNoBom, false, UnixUtilities.StreamBufferSize);
_commandStream = new StreamWriter(stdInStream, encNoBom);
}
RunInTerminalLauncher launcher = new RunInTerminalLauncher(windowtitle, localOptions.Environment);
launcher.Launch(
cmdArgs,
localOptions.UseExternalConsole,
LaunchSuccess,
(error) =>
{
transportCallback.OnStdErrorLine(error);
throw new InvalidOperationException(error);
},
logger);
logger?.WriteLine("Wait for connection completion.");
if (_waitForConnection != null)
{
// Add a timeout for waiting for connection - 20 seconds
Task waitOrTimeout = Task.WhenAny(_waitForConnection, Task.Delay(20000));
await waitOrTimeout;
if (waitOrTimeout.Status != TaskStatus.RanToCompletion)
{
string errorMessage = String.Format(CultureInfo.CurrentCulture, MICoreResources.Error_DebuggerInitializeFailed_NoStdErr, "WindowsDebugLauncher.exe");
transportCallback.OnStdErrorLine(errorMessage);
transportCallback.OnDebuggerProcessExit(null);
return;
}
}
base.Init(transportCallback, options, logger, waitLoop);
}