Gdb support for exceptions (Re: using backtrace() in exception throwing?)

On Monday 18 of February 2013, Tom Tromey wrote:
> > > > > > "Lubos" == Lubos Lunak <l.lunak@suse.cz> writes:
>
> Lubos>  This could be very useful ('catch throw' is so cumbersome in
> Lubos> gdb),
>
> Is there something we could do to improve it?

 I don't know how much control gdb over exception handling has, so I don't 
know :).

 What I was refering to was the problem that if a catch block catches an 
exception, it's often difficult to find out where it actually came from. 
Using 'catch catch' doesn't show where it originated (unless I missed a 
non-obvious way). And if the exception propagated out of complex nesting of 
function calls, then 'catch throw' may trigger a number of times for 
exceptions that will be handled elsewhere.

 So it would be useful to have some kind of 'catch throw-for-this-catch', or 
at least some 'show exception' (mentioned in 'help catch') that would show 
where the currently propagating exception started.

-- 
 Lubos Lunak
 l.lunak@suse.cz