From owner-freebsd-current@FreeBSD.ORG Thu Aug 14 10:57:59 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 20E9337B401 for ; Thu, 14 Aug 2003 10:57:59 -0700 (PDT) Received: from mail.speakeasy.net (mail7.speakeasy.net [216.254.0.207]) by mx1.FreeBSD.org (Postfix) with ESMTP id A373D43F75 for ; Thu, 14 Aug 2003 10:57:57 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 31169 invoked from network); 14 Aug 2003 17:57:57 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender )encrypted SMTP for ; 14 Aug 2003 17:57:57 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.9/8.12.9) with ESMTP id h7EHvs9s065898; Thu, 14 Aug 2003 13:57:54 -0400 (EDT) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.4 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <16187.44785.91962.402945@grasshopper.cs.duke.edu> Date: Thu, 14 Aug 2003 13:58:16 -0400 (EDT) From: John Baldwin To: Andrew Gallatin cc: Luoqi Chen cc: current@freebsd.org Subject: RE: Change to kernel+modules build approach X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Aug 2003 17:57:59 -0000 On 14-Aug-2003 Andrew Gallatin wrote: > > John Baldwin writes: > > > > On 14-Aug-2003 Ruslan Ermilov wrote: > > > On Thu, Aug 14, 2003 at 02:10:19AM -0600, Scott Long wrote: > > >> Luoqi Chen wrote: > > > [...] > > >> >On the other hand, all modules should create all the opt_*.h files > > >> >it needs when built individually. Add opt_ddb.h to nullfs's Makefile > > >> >should fix the breakage. > > >> > > > >> Our kernel build system isn't set up to handle passing config options > > >> to modules. Various solutions to this have been proposed, but nothing > > >> has appeared yet. In 5.x, we document that modules will not work with > > >> PAE. > > >> > > > How does the below look? This is basically a more generic implementation > > > of Luoqi's idea, but for -CURRENT: > > > > I would prefer something far more radical that would involve moving > > all the module metadata to sys/conf (i.e. removing sys/modules) and > > building all the modules based on a single kernel config file. > > Would this tie modules to that kernel config? If so, would it mean > the end of the ability of 3rd party developers to ship binary drivers > and expect them to work with any kernel? Well, yes, but, one could always build generic modules by using a kernel config containing 'options KLD_MODULE' or some such. This would allow one to compile optimized modules if they wanted to, but still provide the ability to build fully generic modules. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/