public Microsoft.Diagnostics.RuntimeExt.SourceLocation GetFileAndLineNumberSafe(ClrStackFrame frame)
{
if (frame.Method == null || frame.Method.Type == null || frame.Method.Type.Module == null)
{
return(null);
}
string moduleName = frame.Method.Type.Module.Name;
if (_failedToLoadSymbols.Contains(moduleName))
{
return(null);
}
// ClrStackFrame.GetFileAndLineNumber throws occasionally when something is wrong with the module.
try
{
var location = frame.GetSourceLocation();
if (location == null)
{
_failedToLoadSymbols.Add(moduleName);
}
return(location);
}
catch (ClrDiagnosticsException)
{
_failedToLoadSymbols.Add(moduleName);
return(null);
}
catch (InvalidOperationException)
{
_failedToLoadSymbols.Add(moduleName);
return(null);
}
}
public CombinedStackFrame(ClrStackFrame frame)
{
if (frame.Kind == ClrStackFrameType.ManagedMethod)
{
Type = StackFrameType.Managed;
}
if (frame.Kind == ClrStackFrameType.Runtime)
{
Type = StackFrameType.Special;
}
InstructionPointer = frame.InstructionPointer;
StackPointer = frame.StackPointer;
if (frame.Method == null)
{
MethodName = frame.DisplayString; //for example GCFrame
return;
}
MethodName = frame.Method.GetFullSignature();
if (frame.Method.Type != null)
{
ModuleName = Path.GetFileNameWithoutExtension(frame.Method.Type.Module.Name);
if (string.IsNullOrEmpty(ModuleName))
{
ModuleName = "UNKNOWN";
}
}
// calculate IL offset with instruction pointer of frame and instruction pointer
// in the target dump file of the start of the method's assembly
OffsetInMethod = InstructionPointer - frame.Method.NativeCode;
this.SourceInfo = frame.GetSourceLocation();
}