[PATCH] Fix debugger attach for threads

[Christopher Faylor]

On Fri, Oct 31, 2003 at 10:11:46PM +0100, Thomas Pfaff wrote:
>This patch allows a debugger to attach when an exception occurs in a 
>thread other than the mainthread.
>
>I am not happy about the wait in handle_exceptions, but it works on my 
>machine. I think that a waitloop until the debugger is attached is 
>cleaner, but there must be a reason why the debbugging loop is 
>implemented this way.

The intent is for an attached debugger to immediately see the location
that died.  If you loop in the try_to_debug code then it is a pain to
figure out exactly where the exception occurred.

I don't understand why this code is needed.  Why do threads need to
be suspended and resumed specially?

cgf