public unsafe static DnDebugger CreateDnDebugger(DebugProcessOptions options, CoreCLRTypeDebugInfo info, Func <bool> keepWaiting, Func <ICorDebug, string, uint, string, DnDebugger> createDnDebugger)
{
var dbgShimState = GetOrCreateDbgShimState(info.HostFilename, info.DbgShimFilename);
if (dbgShimState == null)
{
throw new Exception(string.Format("Could not load dbgshim.dll: '{0}' . Make sure you use the {1}-bit version", info.DbgShimFilename, IntPtr.Size * 8));
}
var startupEvent = IntPtr.Zero;
var hThread = IntPtr.Zero;
IntPtr pHandleArray = IntPtr.Zero, pStringArray = IntPtr.Zero;
uint dwArrayLength = 0;
var pi = new PROCESS_INFORMATION();
bool error = true, calledSetEvent = false;
try {
var dwCreationFlags = options.ProcessCreationFlags ?? DebugProcessOptions.DefaultProcessCreationFlags;
dwCreationFlags |= ProcessCreationFlags.CREATE_SUSPENDED;
var si = new STARTUPINFO();
si.cb = (uint)(4 * 1 + IntPtr.Size * 3 + 4 * 8 + 2 * 2 + IntPtr.Size * 4);
var cmdline = "\"" + info.HostFilename + "\" " + info.HostCommandLine + " \"" + options.Filename + "\"" + (string.IsNullOrEmpty(options.CommandLine) ? string.Empty : " " + options.CommandLine);
var env = Win32EnvironmentStringBuilder.CreateEnvironmentUnicodeString(options.Environment);
dwCreationFlags |= ProcessCreationFlags.CREATE_UNICODE_ENVIRONMENT;
bool b = NativeMethods.CreateProcess(info.HostFilename ?? string.Empty, cmdline, IntPtr.Zero, IntPtr.Zero,
options.InheritHandles, dwCreationFlags, env, options.CurrentDirectory,
ref si, out pi);
hThread = pi.hThread;
if (!b)
{
throw new Exception(string.Format("Could not execute '{0}'", options.Filename));
}
int hr = dbgShimState.GetStartupNotificationEvent(pi.dwProcessId, out startupEvent);
if (hr < 0)
{
throw new Exception(string.Format("GetStartupNotificationEvent failed: 0x{0:X8}", hr));
}
NativeMethods.ResumeThread(hThread);
const uint WAIT_MS = 5000;
for (;;)
{
uint res = NativeMethods.WaitForSingleObject(startupEvent, WAIT_MS);
if (res == 0)
{
break;
}
if (res == NativeMethods.WAIT_FAILED)
{
throw new Exception(string.Format("Error waiting for startup event: 0x{0:X8}", Marshal.GetLastWin32Error()));
}
if (res == NativeMethods.WAIT_TIMEOUT)
{
if (keepWaiting())
{
continue;
}
throw new TimeoutException("Waiting for CoreCLR timed out. Debug 32-bit .NET Core apps with 32-bit dnSpy (dnSpy-x86.exe), and 64-bit .NET Core apps with 64-bit dnSpy (dnSpy.exe).");
}
Debug.Fail(string.Format("Unknown result from WaitForMultipleObjects: 0x{0:X8}", res));
throw new Exception("Error waiting for startup event");
}
hr = dbgShimState.EnumerateCLRs(pi.dwProcessId, out pHandleArray, out pStringArray, out dwArrayLength);
if (hr < 0 || dwArrayLength == 0)
{
throw new Exception("Process started but no CoreCLR found");
}
var psa = (IntPtr *)pStringArray;
var pha = (IntPtr *)pHandleArray;
const int index = 0;
var version = GetVersionStringFromModule(dbgShimState, pi.dwProcessId, psa[index], out string coreclrFilename);
hr = dbgShimState.CreateDebuggingInterfaceFromVersionEx(CorDebugInterfaceVersion.CorDebugVersion_4_0, version, out object obj);
var corDebug = obj as ICorDebug;
if (corDebug == null)
{
throw new Exception(string.Format("Could not create a ICorDebug: hr=0x{0:X8}", hr));
}
var dbg = createDnDebugger(corDebug, coreclrFilename, pi.dwProcessId, version);
for (uint i = 0; i < dwArrayLength; i++)
{
NativeMethods.SetEvent(pha[i]);
}
calledSetEvent = true;
error = false;
return(dbg);
}
finally {
if (!calledSetEvent && pHandleArray != IntPtr.Zero && dwArrayLength != 0)
{
var pha = (IntPtr *)pHandleArray;
for (uint i = 0; i < dwArrayLength; i++)
{
NativeMethods.SetEvent(pha[i]);
}
}
if (startupEvent != IntPtr.Zero)
{
NativeMethods.CloseHandle(startupEvent);
}
if (hThread != IntPtr.Zero)
{
NativeMethods.CloseHandle(hThread);
}
if (pHandleArray != IntPtr.Zero)
{
dbgShimState.CloseCLREnumeration(pHandleArray, pStringArray, dwArrayLength);
}
if (error)
{
NativeMethods.TerminateProcess(pi.hProcess, uint.MaxValue);
}
if (pi.hProcess != IntPtr.Zero)
{
NativeMethods.CloseHandle(pi.hProcess);
}
}
}
public unsafe static DnDebugger CreateDnDebugger(DebugProcessOptions options, CoreCLRTypeDebugInfo info, IntPtr outputHandle, IntPtr errorHandle, Func <bool> keepWaiting, Func <ICorDebug, string, uint, string, DnDebugger> createDnDebugger)
{
var dbgShimState = GetOrCreateDbgShimState(info.HostFilename, info.DbgShimFilename);
if (dbgShimState == null)
{
throw new Exception($"Could not load {dbgshimFilename}: '{info.DbgShimFilename}' . Make sure you use the {IntPtr.Size * 8}-bit version");
}
var startupEvent = IntPtr.Zero;
var hThread = IntPtr.Zero;
IntPtr pHandleArray = IntPtr.Zero, pStringArray = IntPtr.Zero;
uint dwArrayLength = 0;
bool useHost = info.HostFilename != null;
var pi = new PROCESS_INFORMATION();
bool error = true, calledSetEvent = false;
try {
bool inheritHandles = options.InheritHandles;
var dwCreationFlags = options.ProcessCreationFlags ?? DebugProcessOptions.DefaultProcessCreationFlags;
dwCreationFlags |= ProcessCreationFlags.CREATE_SUSPENDED;
var si = new STARTUPINFO();
si.hStdOutput = outputHandle;
si.hStdError = errorHandle;
if (si.hStdOutput != IntPtr.Zero || si.hStdError != IntPtr.Zero)
{
si.dwFlags |= STARTUPINFO.STARTF_USESTDHANDLES;
inheritHandles = true;
}
si.cb = (uint)(4 * 1 + IntPtr.Size * 3 + 4 * 8 + 2 * 2 + IntPtr.Size * 4);
string cmdline;
if (useHost)
{
cmdline = "\"" + info.HostFilename + "\" " + info.HostCommandLine + " \"" + options.Filename + "\"" + (string.IsNullOrEmpty(options.CommandLine) ? string.Empty : " " + options.CommandLine);
}
else
{
cmdline = "\"" + options.Filename + "\"" + (string.IsNullOrEmpty(options.CommandLine) ? string.Empty : " " + options.CommandLine);
}
var env = Win32EnvironmentStringBuilder.CreateEnvironmentUnicodeString(options.Environment);
dwCreationFlags |= ProcessCreationFlags.CREATE_UNICODE_ENVIRONMENT;
var appName = useHost ? info.HostFilename : options.Filename;
bool b = NativeMethods.CreateProcess(appName ?? string.Empty, cmdline, IntPtr.Zero, IntPtr.Zero,
inheritHandles, dwCreationFlags, env, options.CurrentDirectory,
ref si, out pi);
hThread = pi.hThread;
if (!b)
{
throw new Exception($"Could not execute '{options.Filename}'");
}
int hr = dbgShimState.GetStartupNotificationEvent(pi.dwProcessId, out startupEvent);
if (hr < 0)
{
throw new Exception($"GetStartupNotificationEvent failed: 0x{hr:X8}");
}
NativeMethods.ResumeThread(hThread);
const uint WAIT_MS = 5000;
for (;;)
{
uint res = NativeMethods.WaitForSingleObject(startupEvent, WAIT_MS);
if (res == 0)
{
break;
}
if (res == NativeMethods.WAIT_FAILED)
{
throw new Exception($"Error waiting for startup event: 0x{Marshal.GetLastWin32Error():X8}");
}
if (res == NativeMethods.WAIT_TIMEOUT)
{
if (keepWaiting())
{
continue;
}
throw new TimeoutException("Waiting for CoreCLR timed out. Debug 32-bit .NET Core apps with 32-bit dnSpy (dnSpy-x86.exe), and 64-bit .NET Core apps with 64-bit dnSpy (dnSpy.exe).");
}
Debug.Fail($"Unknown result from WaitForMultipleObjects: 0x{res:X8}");
throw new Exception("Error waiting for startup event");
}
hr = dbgShimState.EnumerateCLRs(pi.dwProcessId, out pHandleArray, out pStringArray, out dwArrayLength);
if (hr < 0 || dwArrayLength == 0)
{
// CoreCLR doesn't give us a good error code if we try to debug a .NET Core app
// with an incompatible bitness:
// x86 tries to debug x64: hr == 0x8007012B (ERROR_PARTIAL_COPY)
// x64 tries to debug x86: hr == 0x00000000 && dwArrayLength == 0x00000000
if (IntPtr.Size == 4 && (uint)hr == 0x8007012B)
{
throw new StartDebuggerException(StartDebuggerError.UnsupportedBitness);
}
if (IntPtr.Size == 8 && hr == 0 && dwArrayLength == 0)
{
throw new StartDebuggerException(StartDebuggerError.UnsupportedBitness);
}
throw new Exception("Process started but no CoreCLR found");
}
var psa = (IntPtr *)pStringArray;
var pha = (IntPtr *)pHandleArray;
const int index = 0;
var version = GetVersionStringFromModule(dbgShimState, pi.dwProcessId, psa[index], out string coreclrFilename);
hr = dbgShimState.CreateDebuggingInterfaceFromVersionEx(CorDebugInterfaceVersion.CorDebugVersion_4_0, version, out object obj);
var corDebug = obj as ICorDebug;
if (corDebug == null)
{
throw new Exception($"Could not create a ICorDebug: hr=0x{hr:X8}");
}
var dbg = createDnDebugger(corDebug, coreclrFilename, pi.dwProcessId, version);
for (uint i = 0; i < dwArrayLength; i++)
{
NativeMethods.SetEvent(pha[i]);
}
calledSetEvent = true;
error = false;
return(dbg);
}
finally {
if (!calledSetEvent && pHandleArray != IntPtr.Zero && dwArrayLength != 0)
{
var pha = (IntPtr *)pHandleArray;
for (uint i = 0; i < dwArrayLength; i++)
{
NativeMethods.SetEvent(pha[i]);
}
}
if (startupEvent != IntPtr.Zero)
{
NativeMethods.CloseHandle(startupEvent);
}
if (hThread != IntPtr.Zero)
{
NativeMethods.CloseHandle(hThread);
}
if (pHandleArray != IntPtr.Zero)
{
dbgShimState.CloseCLREnumeration(pHandleArray, pStringArray, dwArrayLength);
}
if (error)
{
NativeMethods.TerminateProcess(pi.hProcess, uint.MaxValue);
}
if (pi.hProcess != IntPtr.Zero)
{
NativeMethods.CloseHandle(pi.hProcess);
}
}
}
