NTSD and SOS: StopOnException

using System;

class Program

{

    static void Main(string[] args)

    {

        Program p = new Program();

        p.ExceptionSample();

    }

    private void ExceptionSample()

    {

        int i=0;

        while (i < 100)

        {

            if (i == 60)

            {

                try

                {

                    throw new ArgumentException();

                }

                catch (Exception)

                {

                }

            }

            else

            {

                try

                {

                    throw new OutOfMemoryException();

                }

                catch (Exception)

                {

                }

            }

            i++;

        }

    }

}

 

!StopOnException comes in handy when you want if you want to break when a specific exception occurs.

csc /debug Program.cs

ntsd program.exe

.sympath+ .

sxe ld mscorwks

g

.loadby sos msorwks

!StopOnException -Create System.ArgumentException 1

g

!ClrStack -a

OS Thread Id: 0x103c (0)

Child-SP RetAddr Call Site

000000000019ee50 000007ff00180182 Program.ExceptionSample()

    PARAMETERS:

        this = 0x0000000002603358

    LOCALS:

        0x000000000019ee78 = 0x000000000000003c

        0x000000000019ee7c = 0x0000000000000000

000000000019eec0 000007fefa3f2672 Program.Main(System.String[])

    PARAMETERS:

        args = 0x0000000002603338

    LOCALS:

        0x000000000019eee0 = 0x0000000002603358

!pe

Exception object: 00000000026087d0

Exception type: System.ArgumentException

Message: Value does not fall within the expected range.

InnerException: <none>

StackTrace (generated):

<none>

StackTraceString: <none>

HResult: 80070057

This will stop when the exception occurs. You can print the details of the exception using pe and look into locals using the clrstack -a. This comes in handy if you want to debug some problem and want to break when the exception occurs.