Re: Meeting Agenda 2008-08-13

[Phil Muldoon <pmuldoon at redhat dot com>]

Tom Tromey wrote:

Hi Tom.

Thanks for the write-up.  I'll expand on this a bit:

> * Phil wanted to know about building the gcc runtime libraries with
>   -g, and we also talked about the VTA branch a bit.  He sent email
>   and I sent a response on this already.
>   

I sent the following email last week. I think this defines (in my view) 
a start on the C++ exception problems, and provides a detailed status of 
what I've been up too:

http://sourceware.org/ml/archer/2008-q3/msg00080.html

Also it  was a peer review request, and thanks very kindly to those 
folks who replied. While discussing this, I'd like to re-invite people 
to add comments, tell me if they think  I am on the wrong track (or the 
right one ;)), or want to add anything else.

I'm currently researching the mechanics of uw_install_context in gcc to 
understand how program flow alteration occurs in the case of exceptions, 
so that I can estimate teaching GDB how to detect these flow changes. I 
think teaching GDB these mechanics will help, if not be the solution for 
gnats pr 2495 and gnats pr 2488. I've run into -O optimization issues 
when stepping through the many, many subroutines that are nested with in 
the uw_install_context logic path, so I need to re-build GCC so that I 
can correctly determine variable value and correct program logic.

I hope to have a rough estimate out before I leave on vacation for 
Snowdonia this week.

Regards

Phil