From owner-freebsd-hackers@FreeBSD.ORG Mon Sep 3 14:05:50 2007 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2B80C16A468; Mon, 3 Sep 2007 14:05:50 +0000 (UTC) (envelope-from keramida@freebsd.org) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 96FD913C46B; Mon, 3 Sep 2007 14:05:49 +0000 (UTC) (envelope-from keramida@freebsd.org) Received: from kobe.laptop (vader.bytemobile.ondsl.gr [83.235.244.135]) (authenticated bits=128) by igloo.linux.gr (8.14.1/8.14.1/Debian-8) with ESMTP id l83E5FCo025398 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 3 Sep 2007 17:05:24 +0300 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.1/8.14.1) with ESMTP id l83E4uQM005461; Mon, 3 Sep 2007 17:05:12 +0300 (EEST) (envelope-from keramida@freebsd.org) Received: (from keramida@localhost) by kobe.laptop (8.14.1/8.14.1/Submit) id l83E4tcj005460; Mon, 3 Sep 2007 17:04:55 +0300 (EEST) (envelope-from keramida@freebsd.org) Date: Mon, 3 Sep 2007 17:04:55 +0300 From: Giorgos Keramidas To: Yar Tikhiy Message-ID: <20070903140454.GB5265@kobe.laptop> References: <20070901073440.GL85633@comp.chem.msu.su> <46DAFE5C.6070806@freebsd.org> <20070903001803.GA8098@kobe.laptop> <20070903132009.GI30502@comp.chem.msu.su> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070903132009.GI30502@comp.chem.msu.su> X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-4.076, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.32, BAYES_00 -2.60) X-Hellug-MailScanner-From: keramida@freebsd.org X-Spam-Status: No Cc: Tim Kientzle , hackers@freebsd.org Subject: Re: Useful tools missing from /rescue X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Sep 2007 14:05:50 -0000 On 2007-09-03 17:20, Yar Tikhiy wrote: >On Mon, Sep 03, 2007 at 03:18:03AM +0300, Giorgos Keramidas wrote: >> Running nm(1) on the binaries, I see that they have the same symbols >> though: >> >> $ nm -S chmod | awk '{print $2,$3,$4}' | sort > /tmp/symbols.chmod >> $ nm -S chown | awk '{print $2,$3,$4}' | sort > /tmp/symbols.chown >> $ diff -u /tmp/symbols.chmod /tmp/symbols.chown >> $ >> >> Does this mean that adding chown to the already crunched binary will not >> cause a lot of bloat because of symbols/functions private to chown? > > The difference in the static binary sizes is weird, but I don't > have time now to dig the issue deeper, sorry. The rescue binary > grows just slightly when chown is added to it: > > -r-xr-xr-x 121 root wheel 3715096 1 ??? 10:22 /rescue.old/rescue > -r-xr-xr-x 122 root wheel 3718192 3 ??? 17:17 /rescue/rescue It's probably a side-effect of the fact my userland was built with DEBUG_FLAGS='-g' and this was compiled without a full buildworld. Thus the binaries I compiled used debugging versions of the libs from /usr/lib but their own source was built with DEBUG_FLAGS=''. Nevermind about the binary difference in sizes; it's probably a local build-related issue. It's good to know that rescue doesn't grow a lot anyway :)