Re: Tasks

[Phil Muldoon <pmuldoon at redhat dot com>]

Phil Muldoon wrote:
> 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.
> >   
> 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.

This ungainly gnat's url:

http://sourceware.org/cgi-bin/gnatsweb.pl?database=gdb&category=c%2B%2B&severity=all&priority=all&responsible=all&submitter_id=all&state=all&ignoreclosed=Ignore%20Closed&class=all&synopsis=&multitext=&columns=category&columns=state&columns=class&columns=responsible&columns=synopsis&displaydate=Display%20Current%20Date&cmd=submit%20query&sortby=Responsible&.cgifields=displaydate&.cgifields=ignoreclosed&.cgifields=originatedbyme&.cgifields=columns

Contains all the C++ bugs. I'll look at them all in time, but another 
quick look at a search regarding exceptions (the feature exception does 
not have a category, alas)  provides existing bugs:

Number:     932
Category:     c++
Synopsis:     GDB is not able to show parameters of catch block

Number:     1486
Category:     win32
Synopsis:     gdb for Win32 does not handle Microsoft C++ exceptions 
properly.

Number:     1414
Category:     java
Synopsis:     can't step through java exceptions

Number:     759
Category:     mi
Synopsis:     catch_exceptions() should update gdb stdout et.al.


So there must be more than this, or all our C++ programmer must be 
suffering in silence regarding exceptions. I'm guessing I need to be a 
better gnat searcher, or define a problem statement around existing 
exception support. Beyond the limitations expressed in the previous 
mail, are there known proven bugs? longjmp support?

Regards

Phil