From owner-freebsd-current@FreeBSD.ORG Wed Mar 29 19:01:25 2006 Return-Path: X-Original-To: current@freebsd.org 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 4B47116A427 for ; Wed, 29 Mar 2006 19:01:25 +0000 (UTC) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (gate.funkthat.com [69.17.45.168]) by mx1.FreeBSD.org (Postfix) with ESMTP id D2C6543D45 for ; Wed, 29 Mar 2006 19:01:24 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (7km5rha5flkps4o8@localhost.funkthat.com [127.0.0.1]) by hydrogen.funkthat.com (8.13.4/8.13.3) with ESMTP id k2TJ1OR3075971; Wed, 29 Mar 2006 11:01:24 -0800 (PST) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.13.4/8.13.3/Submit) id k2TJ1Nc5075970; Wed, 29 Mar 2006 11:01:23 -0800 (PST) (envelope-from jmg) Date: Wed, 29 Mar 2006 11:01:23 -0800 From: John-Mark Gurney To: stanley jobson Message-ID: <20060329190123.GQ7001@funkthat.com> Mail-Followup-To: stanley jobson , current@freebsd.org References: <24143.1143531014@www098.gmx.net> <9531.1143531289@www098.gmx.net> <20060329061135.GP7001@funkthat.com> <20060329100346.95aa1e6a.stanley.jobson@gmx.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060329100346.95aa1e6a.stanley.jobson@gmx.ch> User-Agent: Mutt/1.4.2.1i X-Operating-System: FreeBSD 5.4-RELEASE-p6 i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html Cc: current@freebsd.org Subject: Re: KLD technical docs X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: John-Mark Gurney List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Mar 2006 19:01:25 -0000 stanley jobson wrote this message on Wed, Mar 29, 2006 at 10:03 +0200: > > > for my master thesis i am looking for technical docs about > > > dynamic linking esp. about the kernel dynamic linker facility. > > > > > > i found some good docs about dynamic linking in general but > > > nothing about KLD/LKM. > > > > > > are there any technical docs on KLD? I read the short chapter > > > in the arch handbook but thats not much info. > > > > > > i am interested in docs answering the following questions: > > > - how does the dynamic loading and linking work for KLDs/LKMs? > > > - does this anything has to do with libbfd, libdl or rtld? > > > - how are dependencies handled? > > > > > > technical info to LKM and dynamic linking facility of the other > > > BSDs would be also interesting :) > > > > The best technical doc is src/sys/kern/kern_linker.c... :) That > > handles all the magic of SYSINIT's, sysctl's and the other magic of > > kernel modules... > > sure ;-) ... but kinda low level ... so am i right that there is no > higher level doc available ? Besides docs on how to write kld drivers, not really... A couple links I found on writing kld's: http://ezine.daemonnews.org/200010/blueprints.html http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/driverbasics-kld.html -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."