From: Tom Tromey <tromey@redhat.com>
To: Daniel Jacobowitz <drow@false.org>
Cc: Paul Pluzhnikov <ppluzhnikov@google.com>, archer@sourceware.org
Subject: Re: Initial psymtab replacement results
Date: Mon, 21 Dec 2009 21:29:00 -0000 [thread overview]
Message-ID: <m31vio9fss.fsf@fleche.redhat.com> (raw)
In-Reply-To: <20091221135436.GB716@caradoc.them.org> (Daniel Jacobowitz's message of "Mon, 21 Dec 2009 08:54:36 -0500")
>>>>> "Daniel" == Daniel Jacobowitz <drow@false.org> writes:
Tom> The problem I have with it is that it doesn't help the first time you
Tom> start gdb. And because the cache is invalidated whenever an objfile
Tom> changes, the part of your program you are hacking on will always look
Tom> like the first time.
Daniel> Are monolithic single objects still the norm? In e.g. the OpenOffice
Daniel> case, this is fine; most of the guts are in shared libraries and
Daniel> hopefully someone hacking on OO.o can rebuild just one library at a
Daniel> time.
Yeah, but the vitally important "gdb gdb" is still slow.
Maybe I'll just buy a faster machine :-)
Daniel> Yes, it does, although it probably does best with the psymtab cleanups
Daniel> you've already got. Any interest in submitting those independently?
Daniel> It sounds like a nice framework for investigating alternate
Daniel> approaches.
Sure, I will do it if you think it is worthwhile. The reason I was
putting it off is that it seemed strange to refactor all this code
behind a bunch of function pointers, and then only have a single
implementation.
The other infrastructure is the threading changes, which are a bit
uglier. For one thing, I didn't see an easy way to make the BFD cache
code truly thread-safe; so for now I wrap it in a lock and just pretend
that nothing bad can happen. Also, I'm not 100% sure I got all the
places that need a __thread modifier.
Tom
next prev parent reply other threads:[~2009-12-21 21:29 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-10 21:54 Tom Tromey
2009-12-11 23:10 ` Tom Tromey
2009-12-11 23:59 ` Daniel Jacobowitz
2009-12-14 22:40 ` Tom Tromey
2009-12-14 23:09 ` Daniel Jacobowitz
2009-12-15 23:39 ` Tom Tromey
2009-12-16 3:01 ` Roland McGrath
2009-12-16 18:20 ` Tom Tromey
2009-12-16 18:57 ` Roland McGrath
2009-12-16 19:46 ` Tom Tromey
2009-12-16 19:52 ` Roland McGrath
2009-12-16 18:11 ` Daniel Jacobowitz
2009-12-16 19:31 ` Tom Tromey
2009-12-23 18:29 ` Tom Tromey
2009-12-23 18:35 ` Daniel Jacobowitz
2009-12-24 17:07 ` Tom Tromey
2010-01-06 23:05 ` Tom Tromey
2009-12-17 16:39 ` Paul Pluzhnikov
2009-12-17 16:53 ` Daniel Jacobowitz
2009-12-17 17:20 ` Paul Pluzhnikov
2009-12-17 18:16 ` Daniel Jacobowitz
2009-12-18 23:58 ` Tom Tromey
2009-12-21 13:54 ` Daniel Jacobowitz
2009-12-21 21:29 ` Tom Tromey [this message]
2009-12-15 1:04 ` Roland McGrath
2009-12-15 18:36 ` Tom Tromey
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