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In-Reply-To: <20100513131840.GA31032@host0.dyn.jankratochvil.net>
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Date: Thu, 13 May 2010 15:47:00 -0000
Message-ID: <AANLkTin4ZlIvdh7BXyfsuBj9oBmCJpHEYwhxukRqaVYu@mail.gmail.com>
Subject: Re: [patch] Smaller gdb: -rdynamic -> -Wl,--dynamic-list
From: "H.J. Lu" <hjl.tools@gmail.com>
To: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: gdb-patches@sourceware.org
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On Thu, May 13, 2010 at 6:18 AM, Jan Kratochvil
<jan.kratochvil@redhat.com> wrote:
> Hi,
>
> gdb currently has needlessly huge .dynsym and thus even huge the (on-dema=
nd
> loaded) LOAD segment. =A0With the attached patch it gets smaller:
>
> -rwxr-xr-x 1 4524488 gdb-7.1-19.fc13.x86_64/usr/bin/gdb
> -rwxr-xr-x 1 4266728 gdb-7.1-19dynamiclist.fc13.x86_64/usr/bin/gdb
> -rw-r--r-- 1 2364656 gdb-7.1-19.fc13.x86_64.rpm
> -rw-r--r-- 1 2274300 gdb-7.1-19dynamiclist.fc13.x86_64.rpm
>
> I am not sure with the gdbserver/Makefile.in new CDEPS there. =A0I have n=
ot
> found it defined anywhere while it is used as the gdbserver target depend=
ency.
>
> I hope on the build hosts where -rdynamic was supported even
> -Wl,--dynamic-list must be supported.
>
> ps_get_thread_area is not always defined while the proc-service.list file
> lists it. =A0GNU ld does not seem to be concerned by undefined symbols.
>
> No regressions on {x86_64,x86_64-m32,i686}-fedora12-linux-gnu.
>
>

FWIW, --dynamic-list was added in Sept., 2006 and a bug was fixed in Oct., =
2006.


--=20
H.J.