From: Daniel Jacobowitz <drow@false.org>
To: Nick Savoiu <savoiu@ics.uci.edu>
Cc: gdb@sources.redhat.com
Subject: Re: Debugging a large program
Date: Tue, 05 Oct 2004 05:24:00 -0000 [thread overview]
Message-ID: <20041004232553.GA16539@nevyn.them.org> (raw)
In-Reply-To: <04cb01c4aa68$e0a13b00$5a02a8c0@rio>
On Mon, Oct 04, 2004 at 04:21:28PM -0700, Nick Savoiu wrote:
> ----- Original Message -----
> From: "Daniel Jacobowitz" <drow@false.org>
> To: "Nick Savoiu" <savoiu@ics.uci.edu>; <gdb@sources.redhat.com>
> Sent: Monday, October 04, 2004 3:14 PM
> Subject: Re: Debugging a large program
>
>
> > On Mon, Oct 04, 2004 at 05:15:14PM -0400, Daniel Jacobowitz wrote:
> > > > BTW, 405MB was for gdb running to main() not just what I said above :)
> There
> > > > probably are a few global variables but I don't think they should take
> up
> > > > too much space.
> > >
> > > That requires loading symbol information for all the shared libraries,
> > > which is probably what's taking all the space. 400MB+ is a bit
> > > unusual, but I don't know how big your libraries are.
> >
> > Your libraries contain 288MB of DWARF2 debug information. We're
> > winding up with less than twice that in memory usage for reading in
> > partial symbols. It probably could be reduced somewhat - say, 30%.
> > But some of this data we've just got to hold in memory.
>
> I see. If one of the .so files is not actually used, can I somehow prevent
> GDB from loading even its partial symbols? How much memory do partial
> symbols use?
Partial symbols are most or all of that memory. Try "set
auto-solib-add 0", followed by "sharedlibrary REGEXP-YOU-WANT-LOADED".
--
Daniel Jacobowitz
next prev parent reply other threads:[~2004-10-04 23:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-04 21:15 Nick Savoiu
2004-10-04 21:16 ` Daniel Jacobowitz
2004-10-04 23:21 ` Daniel Jacobowitz
2004-10-04 23:25 ` Nick Savoiu
2004-10-05 5:24 ` Daniel Jacobowitz [this message]
2004-10-05 15:26 ` Nick Savoiu
[not found] <F51E79B1-195C-11D9-ACAD-000A9569836A@gnu.org>
2004-10-08 21:35 ` Jason Molenda
2004-10-11 1:46 ` Daniel Berlin
2004-10-11 6:10 ` Andrew Cagney
2004-10-11 13:59 ` Andrew Cagney
-- strict thread matches above, loose matches on Subject: below --
2004-10-04 20:48 Nick Savoiu
2004-10-04 20:54 ` Daniel Jacobowitz
2004-10-05 14:05 ` Andrew Cagney
2004-10-05 14:07 ` Daniel Jacobowitz
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