Date: Sat, 26 May 2007 11:06:02 +0100 From: "Joao Barros" <joao.barros@gmail.com> To: freebsd-current <freebsd-current@freebsd.org> Cc: Alexander Leidinger <Alexander@leidinger.net>, Roman Divacky <rdivacky@freebsd.org> Subject: Re: size of kernel after gcc4.2 upgrade Message-ID: <70e8236f0705260306n25046351w15fcbe25518e2eca@mail.gmail.com> In-Reply-To: <4656DB6A.1010100@freebsd.org> References: <20070525095146.GA45288@freebsd.org> <20070525105203.GB6500@rambler-co.ru> <20070525135416.7u2tw5ibtwwogko8@webmail.leidinger.net> <4656DB6A.1010100@freebsd.org>
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On 5/25/07, Eric Anderson <anderson@freebsd.org> wrote: > On 05/25/07 06:54, Alexander Leidinger wrote: > > Quoting Ruslan Ermilov <ru@FreeBSD.org> (from Fri, 25 May 2007 > > 14:52:03 +0400): > > > >> On Fri, May 25, 2007 at 11:51:46AM +0200, 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? > >>> > >> My numbers are different (1% for the GENERIC kernel, and this > >> is with all code changes in-between): > >> > >> -r-xr-xr-x 1 root wheel 8942239 Apr 11 16:20 kernel.old/kernel > >> -r-xr-xr-x 1 root wheel 9035021 May 24 16:23 kernel/kernel > >> > >> bde@ also reported a 1% code bloat in another thread, so I think > >> you should look at your own changes. > > > > My minimal kernel without additional changes shows: > > -r-xr-xr-x 1 root wheel 2.5M 7 Apr 17:22 /boot/kernel.old/kernel* > > -r-xr-xr-x 1 root wheel 8.1M 7 Apr 17:22 /boot/kernel.old/kernel.symbols* > > -r-xr-xr-x 1 root wheel 3.9M 24 Mai 18:46 /boot/kernel/kernel* > > -r-xr-xr-x 1 root wheel 14M 24 Mai 18:46 /boot/kernel/kernel.symbols* > > > > But this is with debugging (-g) enabled. How's the .symbols generated? > > Can there be some new stuff in the kernel which needs to be handled in > > the .symbols file generation? > > Hmm. Here's mine, with debugging, without WITNESS, or INVARIANTS: > > $ ls -alh kernel*/kernel > -r-xr-xr-x 1 root wheel 7.2M Apr 24 10:24 kernel.old/kernel > -r-xr-xr-x 1 root wheel 8.1M May 21 11:22 kernel/kernel > > Also - are you compiling in hints, or not? > > Eric Here's my CURRENT from last night with make options untouched: xeon# ls -lh /boot/kernel*/kernel* -r-xr-xr-x 1 root wheel 7.2M Apr 27 20:28 /boot/kernel.old/kernel -r-xr-xr-x 1 root wheel 18M Apr 27 20:28 /boot/kernel.old/kernel.symbols -r-xr-xr-x 1 root wheel 8.0M May 26 09:49 /boot/kernel/kernel -r-xr-xr-x 1 root wheel 22M May 26 09:49 /boot/kernel/kernel.symbols -- Joao Barros
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