Date: Fri, 25 May 2007 17:05:17 +0200 From: Roman Divacky <rdivacky@freebsd.org> To: Stefan Ehmann <shoesoft@gmx.net> Cc: freebsd-current@freebsd.org Subject: Re: size of kernel after gcc4.2 upgrade Message-ID: <20070525150517.GA63514@freebsd.org> In-Reply-To: <200705251602.48778.shoesoft@gmx.net> References: <20070525095146.GA45288@freebsd.org> <200705251602.48778.shoesoft@gmx.net>
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On Fri, May 25, 2007 at 04:02:47PM +0200, Stefan Ehmann wrote: > On Friday 25 May 2007 11:51:46 Roman Divacky wrote: > > hi > > > > I just noticed that > > spravci ~# ls -l /boot/kernel*/kernel > > -r-xr-xr-x 1 root wheel 3389971 May 18 12:03 /boot/kernel.old/kernel* > > -r-xr-xr-x 1 root wheel 5211345 May 25 11:47 /boot/kernel/kernel* > > > > ie. after gcc42 import the kernel size increased roughly by 60% thats > > a little too much. is there any forgotten option or something that > > makes the kernel grow so big? > > While I also see an increase, it's not that much. > > GENERIC from today's current, also compiled with gcc34 from ports (I had to > delete two gcc options in sys/conf/kern.mk): > > gcc34: 6530916 > gcc42: 7352560 > gcc34 -Os: 6074468 > gcc42 -Os: 10058032 yes, thats it! I also used -Os. it looks like this occurs only with -Os optimization level. can someone else confirm this? and/or possibly explain this? thnx roman
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