From: Daniel Jacobowitz <drow@false.org>
To: Tom Tromey <tromey@redhat.com>
Cc: archer@sourceware.org
Subject: Re: Initial psymtab replacement results
Date: Mon, 14 Dec 2009 23:09:00 -0000 [thread overview]
Message-ID: <20091214230947.GA31362@caradoc.them.org> (raw)
In-Reply-To: <m3fx7dqix5.fsf@fleche.redhat.com>
On Mon, Dec 14, 2009 at 03:39:50PM -0700, Tom Tromey wrote:
> I understand the compiler problem. If we had a program to rewrite the
> appropriate DWARF sections, would that address the problems you have?
> It seems to me that it would.
I guess so; if you allow GDB to automatically invoke said program
(there is prior art for that, too) then it's pretty much identical. I
still think that you will have long term maintenance problems with
this approach and it will cramp future desire to extend it or change
GDB. But that's not a provable position.
> FWIW if we were going to do our own cache, I wouldn't put it in a form
> like .debug_gnu_index or .debug_pub*. I'd just have gdb write out a
> mappable data structure.
Or you could drag another bit of GDB into this century, and use SQLite
or some other in-process database. Mappable data structures are
tricky; one thing I'd definitely insist on is host neutrality. IMO
that is not optional.
> One definite positive about the branch is that these changes are a lot
> simpler now. The psymtab stuff is mostly isolated, and writing a new
> "back end" is reasonably self-contained.
This makes me very happy.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2009-12-14 23:09 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 [this message]
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
2009-12-15 1:04 ` Roland McGrath
2009-12-15 18:36 ` Tom Tromey
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