From owner-freebsd-hackers@FreeBSD.ORG  Sun Mar 21 16:35:49 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id C9B5516A4CE
	for <hackers@freebsd.org>; Sun, 21 Mar 2004 16:35:49 -0800 (PST)
Received: from mail.sandvine.com (sandvine.com [199.243.201.138])
	by mx1.FreeBSD.org (Postfix) with ESMTP id F1B2843D31
	for <hackers@freebsd.org>; Sun, 21 Mar 2004 16:35:48 -0800 (PST)
	(envelope-from don@sandvine.com)
Received: by mail.sandvine.com with Internet Mail Service (5.5.2657.72)
	id <GC8M6R1C>; Sun, 21 Mar 2004 19:35:47 -0500
Message-ID: <FE045D4D9F7AED4CBFF1B3B813C85337045D8681@mail.sandvine.com>
From: Don Bowman <don@sandvine.com>
To: 'Garance A Drosihn' <drosih@rpi.edu>, Kip Macy <kmacy@netapp.com>
Date: Sun, 21 Mar 2004 19:35:46 -0500
MIME-Version: 1.0
X-Mailer: Internet Mail Service (5.5.2657.72)
Content-Type: text/plain;
	charset="iso-8859-1"
cc: hackers@freebsd.org
Subject: RE: Adventures with gcc: code vs object-code size
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 22 Mar 2004 00:35:50 -0000

From: Garance A Drosihn [mailto:drosih@rpi.edu]
> At 2:52 PM -0800 3/21/04, Kip Macy wrote:
> >The heuristics vary from platform to platform - what does
> >"objdump -d" show?
> 
> Based on what I see from that, the 'ps.o' which has the extra
> strcmp is about 40 bytes larger than the one without it.  And
> now that you mention it, doing a plain 'ls -l' of ps.o shows
> that it is only 40 bytes larger.  It's when you combine that
> file with the other *.o files, and strip it, that the final
> result ends up 3940 bytes larger.
> 
> So maybe this has something to do with how linking is done
> for ELF modules.  Unfortunately, I need to be concentrating
> on something else right now...

Its not just bumping you up another module 4K pages? The 
linker aligns text, data, bss, rodata, etc.