Re: Tasks

[Phil Muldoon <pmuldoon at redhat dot com>]

Tom Tromey wrote:
> * Exceptions.  Look at the existing longjmp stuff, come up with an
>   estimate for the new work.  Also look at the current state of the
>   various "catch" commands, maybe look though gnats to see if anything
>   is known to be broken.
>   

For no particular reason, I'll volunteer too research this one. Some 
casual reading indicates some support for C++ exception handling in GDB 
with some interesting caveats:

- If you call a function interactively (I guess via inferior function 
calls) and that function raises an exception, control may not be 
returned at the end of that function. (And I guess control not returned 
until a signal is delivered or another random breakpoint encountered).
- You cannot install an exception handler, or raise an exception in an 
interactive session.

These are all widely reported as issues. Though one should note (quite 
rightly) that I know nothing about raising exception in C++ other than 
as "regular" C++ programmer, and know nothing about how they are handled 
in GDB right now. So my first question is why these limitations exist. 
And if they are fixable. I'll take a look at existing gnats pr's next week.

Regards

Phil