From: Denys Vlasenko <vda.linux@googlemail.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Sam Ravnborg <sam@ravnborg.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] build system: section garbage collection for vmlinux
Date: Wed, 12 Sep 2007 21:19:57 +0100 [thread overview]
Message-ID: <200709122119.57661.vda.linux@googlemail.com> (raw)
In-Reply-To: <p73veagykwv.fsf@bingen.suse.de>
On Tuesday 11 September 2007 22:03, Andi Kleen wrote:
> Denys Vlasenko <vda.linux@googlemail.com> writes:
> >
> > text data bss dec hex filename
> > 5159478 1005139 406784 6571401 644589 linux-2.6.23-rc4.org/vmlinux
> > 5131822 996090 401439 6529351 63a147 linux-2.6.23-rc4.gc/vmlinux
> >
> > In this particular case, 402 objects were discarded, saving 42 kb.
>
> I wonder how many of those are 100% unused on all configurations?
> That could be an useful janitor task to clean up
With CONFIG_DISCARD_UNUSED_SECTIONS=y ld will helpfully flood you
with the list of discarded stuff. I pass --print-gc-sections to it.
--
vda
next prev parent reply other threads:[~2007-09-12 20:20 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-11 20:05 [PATCH 0/4] build system: section garbage collection for vmlinux Denys Vlasenko
2007-09-11 20:07 ` [PATCH 1/4] " Denys Vlasenko
2007-09-11 20:10 ` [PATCH 2/4] " Denys Vlasenko
2007-09-11 20:11 ` [PATCH 3/4] " Denys Vlasenko
2007-09-11 20:22 ` [PATCH 4/4] " Denys Vlasenko
2007-09-11 21:47 ` [PATCH 1/4] " Daniel Walker
2007-09-12 20:18 ` Denys Vlasenko
2007-09-12 20:52 ` Daniel Walker
2007-09-11 21:03 ` [PATCH 0/4] " Andi Kleen
2007-09-12 20:19 ` Denys Vlasenko [this message]
2007-09-13 18:26 ` Abhishek Sagar
2007-09-13 18:35 ` Sam Ravnborg
2007-09-14 18:06 ` Abhishek Sagar
[not found] ` <20071118230057.GA6303@uranus.ravnborg.org>
2007-11-24 23:14 ` [PATCH 0/3] build system: section garbage collection Denys Vlasenko
2007-11-24 23:17 ` [PATCH 1/3] build system: section garbage collection - rename sections Denys Vlasenko
2008-06-24 7:29 ` Matthieu CASTET
2007-11-24 23:17 ` [PATCH 2/3] build system: section garbage collection - modpost fix Denys Vlasenko
2007-11-24 23:18 ` [PATCH 3/3] build system: section garbage collection - main part Denys Vlasenko
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