From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932077AbWGKSWo (ORCPT ); Tue, 11 Jul 2006 14:22:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932079AbWGKSWo (ORCPT ); Tue, 11 Jul 2006 14:22:44 -0400 Received: from terminus.zytor.com ([192.83.249.54]:2772 "EHLO terminus.zytor.com") by vger.kernel.org with ESMTP id S932077AbWGKSWn (ORCPT ); Tue, 11 Jul 2006 14:22:43 -0400 Message-ID: <44B3EC5A.1010100@zytor.com> Date: Tue, 11 Jul 2006 11:22:18 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 1.5.0.4 (X11/20060614) MIME-Version: 1.0 To: Olaf Hering CC: Jeff Garzik , Michael Tokarev , Roman Zippel , torvalds@osdl.org, klibc@zytor.com, linux-kernel@vger.kernel.org Subject: Re: [klibc] klibc and what's the next step? References: <20060711044834.GA11694@suse.de> <44B37D9D.8000505@tls.msk.ru> <20060711112746.GA14059@suse.de> <44B3D0A0.7030409@zytor.com> <20060711164040.GA16327@suse.de> <44B3DA77.50103@garzik.org> <20060711171624.GA16554@suse.de> <44B3E7D5.8070100@zytor.com> <20060711181552.GD16869@suse.de> In-Reply-To: <20060711181552.GD16869@suse.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Olaf Hering wrote: > "It would be nice if ..." someone can build a list of things that > changed over time. Say from 2.0.0 to 2.6.18. Just struct layouts and defines. > > I havent tried it, but one would hope that the /bin/ls from SuSE 5.3 still > works today. Guess its time for me to actually try that the next days. You know how much code there is in glibc to make your /bin/ls still work? That being said, it in general isn't a problem to continue to use the same exact sets of system calls, but that also means skipping any new functionality. In recent memory that includes things like 64-bit file offsets and high signals, even more recently it means things like openat() and splice(). A full-blown libc also has to deal with LinuxThreads version NPTL. Etc. Again, I fully expect that klibc-0.1 still works on the current kernels, but current klibc wouldn't work on 2.4 kernels. -hpa