Re: GDB 7.9 release update

[Doug Evans <dje@google.com>]

On Mon, Jan 26, 2015 at 8:37 PM, Joel Brobecker <brobecker@adacore.com> wrote:
> Hello,
>
> Just a quick update on the 7.9 release process.
>
> We have 10 entries listed in our TODO file.
>
> | [Joel] PR gdb/17856 (ada-lang.c resaves in cache symbol it just found in cache)
> | [Doug] PR gdb/17855 (clear_symtab_users doesn't call observer_notify_new_objfile (NULL) early enough)
> | [Joel] PR gdb/17854 (Nothing sets pspace_data->sym_cache)
>
> Patches were posted a while ago for those, so it's a matter of pushing
> them. Doug, let's do it?

Sure.

> | [Doug] PR gdb/17821 (anonymous namespace + .gdb_index issue)
>
> Status?
>
> | [Doug] PR gdb/17799 (symbol lookup cache patch)
>
> Defered for next release?
>
> | [Doug] PR gdb/17798 (explicit linespecs patch)
>
> I saw a recent message on this, so hopefully OK soon?
>
> | [Doug] PR gdb/17681 (tab-completion needs better throttling)
>
> I also saw the patch being discussed, so hopefully soon as well?

Hi.  I removed 17821, 17799, 17798 and 17681.
I'm just not going to get time to finish them right now.
They weren't super important though.

OTOH, I just found a bug that I'd like to make a blocker for 7.9.

I'm adding support for Two Level Linetables:
http://wiki.dwarfstd.org/index.php?title=TwoLevelLineTables

and when I run gdb on programs compiled with this support
gdb goes into an infinite loop. :-(

There are actually two bugs here:
17890: gdb needs to punt when it sees a dwarf line table header
version it doesn't understand
17891: how is SIGFPE handling supposed to work?  currently gdb goes
into an infinite loop

I don't have a strong opinion on getting 17891 fixed for 7.9,
but I would like 7.9 to not hang when given tll-enabled binaries.
The fix is safe and easy enough.