////////////////////////////////////////////////////////////////////////////////
//
// CorDebugger private implement part
//
////////////////////////////////////////////////////////////////////////////////
// called by constructors during initialization
private void InitFromVersion(string debuggerVersion)
{
if (debuggerVersion.StartsWith("v1"))
{
// ICorDebug before V2 did not cooperate well with COM-intop. MDbg's managed
// wrappers over ICorDebug only work on V2 and beyond.
throw new ArgumentException("Can't debug a version 1 CLR process (\"" + debuggerVersion +
"\"). Run application in a version 2 CLR, or use a version 1 debugger instead.");
}
bool fUseV2 = false;
ICorDebug rawDebuggingAPI = null;
try
{
CLRMetaHost mh = new CLRMetaHost();
CLRRuntimeInfo rti = mh.GetRuntime(debuggerVersion);
rawDebuggingAPI = rti.GetLegacyICorDebugInterface();
}
catch (NotImplementedException)
{
fUseV2 = true;
}
catch (EntryPointNotFoundException)
{
fUseV2 = true;
}
if (fUseV2)
{
// fallback to v2 method
try
{
rawDebuggingAPI = NativeMethods.CreateDebuggingInterfaceFromVersion((int)CorDebuggerVersion.Whidbey, debuggerVersion);
}
catch (ArgumentException)
{
// This can commonly happen if:
// 1) the debuggee is missing a config file
// 2) the debuggee has a config file for a not-installed CLR.
//
// Give a more descriptive error.
// We explicitly don't pass the inner exception because:
// - it's uninteresting. It's really just from a pinvoke and so there are no
// extra managed frames.
// - MDbg's error reporting will call Exception.GetBaseException() and so just
// grab the inner exception.
throw new ArgumentException("Failed to create debugging services for version '" + debuggerVersion + "'");
}
}
Debug.Assert(rawDebuggingAPI != null);
InitFromICorDebug(rawDebuggingAPI);
}
