Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 15 Feb 2002 19:58:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 15 Feb 2002 19:58:47 -0500 Received: from taifun.devconsult.de ([212.15.193.29]:15621 "EHLO taifun.devconsult.de") by vger.kernel.org with ESMTP id ; Fri, 15 Feb 2002 19:58:37 -0500 Date: Sat, 16 Feb 2002 01:58:34 +0100 From: Andreas Ferber To: Linux Kernel Mailing List Subject: Re: How to check the kernel compile options ? Message-ID: <20020216015834.D28176@devcon.net> Mail-Followup-To: Linux Kernel Mailing List In-Reply-To:

<20020215155143.I14054@lynx.adilger.int> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20020215155143.I14054@lynx.adilger.int>; from adilger@turbolabs.com on Fri, Feb 15, 2002 at 03:51:43PM -0700 Organization: dev/consulting GmbH X-NCC-RegID: de.devcon Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 15, 2002 at 03:51:43PM -0700, Andreas Dilger wrote: > > Note also that it is enough to store the config options without the > leading CONFIG_ part, and then use 'grep "[A-Z0-9]*=[ym]$"' to get > the actual config strings. You can add a final 'sed "s/^/CONFIG_/"' > step to return it to the original format. So: Note that you also need some way to keep the config symbols which are set to "n" and commented out in the .config. Otherwise you will have to answer a lot of questions on "make oldconfig" ("yes n | make oldconfig" isn't an option, as this doesn't tell you which config symbols have been added). I have actually done my own patch to include the .config into the kernel image some time ago. It provides the .config via /proc/config{,.gz,.bz2} (the compression method to use is configurable). Apart from compression, it doesn't try to do anything special to reduce size, because I don't have any machines where it actually matters if the kernel needs some kB more or less memory. I didn't bother to submit the patch because of the discussions on this topic in the past, instead I keep patching kernel sources myself before compiling a kernel. Anyone interested can get the patch from . Patches for new kernel versions are uploaded occasionally, everytime I don't forget to rediff it before applying other patches to the source tree ;-) (possibly conflicting parts for other kernel versions are Makefiles, config.in or Configure.help, which can all be hand-applied easily, even if you are not a kernel hacker ;-). It works for both 2.2 and 2.4 (probably 2.5 also, didn't test yet). Any comments on the patch are welcome ;-) Andreas -- Andreas Ferber - dev/consulting GmbH - Bielefeld, FRG --------------------------------------------------------- +49 521 1365800 - af@devcon.net - www.devcon.net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/