From owner-freebsd-arm@FreeBSD.ORG Wed Mar 26 22:44:50 2014 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id DE049E42; Wed, 26 Mar 2014 22:44:50 +0000 (UTC) Received: from h2.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "funkthat.com", Issuer "funkthat.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 9AA0084F; Wed, 26 Mar 2014 22:44:50 +0000 (UTC) Received: from h2.funkthat.com (localhost [127.0.0.1]) by h2.funkthat.com (8.14.3/8.14.3) with ESMTP id s2QMihjj085315 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 26 Mar 2014 15:44:43 -0700 (PDT) (envelope-from jmg@h2.funkthat.com) Received: (from jmg@localhost) by h2.funkthat.com (8.14.3/8.14.3/Submit) id s2QMihw3085314; Wed, 26 Mar 2014 15:44:43 -0700 (PDT) (envelope-from jmg) Date: Wed, 26 Mar 2014 15:44:43 -0700 From: John-Mark Gurney To: Martin Galvan Subject: Re: Cross-compiling a kernel module? Message-ID: <20140326224443.GN60889@funkthat.com> Mail-Followup-To: Martin Galvan , freebsd-arm@freebsd.org, freebsd-drivers@freebsd.org, freebsd-embedded@freebsd.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Operating-System: FreeBSD 7.2-RELEASE i386 X-PGP-Fingerprint: 54BA 873B 6515 3F10 9E88 9322 9CB1 8F74 6D3F A396 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 X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.2 (h2.funkthat.com [127.0.0.1]); Wed, 26 Mar 2014 15:44:43 -0700 (PDT) Cc: freebsd-arm@freebsd.org, freebsd-drivers@freebsd.org, freebsd-embedded@freebsd.org X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Mar 2014 22:44:50 -0000 Martin Galvan wrote this message on Wed, Mar 26, 2014 at 18:48 -0300: > Hi everyone! I'm trying to cross-compile a simple Hello World module for > the A10 Cubieboard (which is ARM/Allwinner10 based) but I'm not sure of how > to write my makefile. What I'm using to test it (on an amd64) is: > > KMOD=hello > SRCS=hello.c > > .include > > I've been browsing the mailing list a bit and so far I've found a way but > it involves rebuilding the whole kernel, and I just want to compile this > module to load/unload in runtime. > > Also, before you answer this: try and be as specific as you can, since I'm > kind of a newbie at this. Stuff like where should I put/look for files, run > commands, etc would be appreciated. $ cd $SRC $ make kernel-toolchain TARGET_ARCH=armXX $ make buildenv TARGET_ARCH=armXX BUILDENV_SHELL=/usr/local/bin/shell $ cd $ make The buildenv command sets up the new shell with an environment that is the same as if you were running under a buildkernel or buildworld environment.. You can use this to build one off programs like bin/ls too. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."