From owner-freebsd-hackers@freebsd.org Sat Dec 5 09:06:43 2015 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9F4D1A41FEE; Sat, 5 Dec 2015 09:06:43 +0000 (UTC) (envelope-from danny@cs.huji.ac.il) Received: from kabab.cs.huji.ac.il (kabab.cs.huji.ac.il [132.65.116.210]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 50A71192E; Sat, 5 Dec 2015 09:06:39 +0000 (UTC) (envelope-from danny@cs.huji.ac.il) Received: from e-bsd.cs.huji.ac.il ([132.65.80.241] helo=outmail.cs.huji.ac.il ident=exim) by kabab.cs.huji.ac.il with esmtp id 1a58na-0003An-4S; Sat, 05 Dec 2015 11:06:34 +0200 Received: from [132.65.179.20] (helo=mbpro2.bs.cs.huji.ac.il) by outmail.cs.huji.ac.il with esmtpsa id 1a58nZ-000BeA-V0; Sat, 05 Dec 2015 11:06:34 +0200 Mime-Version: 1.0 (Mac OS X Mail 9.1 \(3096.5\)) Subject: Re: cross compiling From: Daniel Braniss In-Reply-To: Date: Sat, 5 Dec 2015 11:06:33 +0200 Cc: freebsd-arm , "freebsd-hackers@freebsd.org" Message-Id: <9BF2F5EC-E6B6-4E35-B637-389A571A8687@cs.huji.ac.il> References: <4E33BE7E-5443-438A-A45C-04B4B90528F9@cs.huji.ac.il> To: Warner Losh X-Mailer: Apple Mail (2.3096.5) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Dec 2015 09:06:43 -0000 > On 5 Dec 2015, at 7:32 AM, Warner Losh wrote: >=20 >=20 > On Fri, Dec 4, 2015 at 10:39 AM, Daniel Braniss > wrote: >=20 >> On 4 Dec 2015, at 6:33 PM, Warner Losh > wrote: >>=20 >>>=20 >>> On Dec 4, 2015, at 9:31 AM, Daniel Braniss > wrote: >>>=20 >>> Hi, >>> I can cross compile for armv6 (raspberry Pi B), and I do get a = working version, and till about July, I was >>> able to cross compile a module doing something like this: >>> $ cd $SRC >>> $ make kernel-toolchain TARGET_ARCH=3Darmv6 >>> $ make buildenv TARGET_ARCH=3Darmv6 = BUILDENV_SHELL=3D/usr/local/bin/shell >>> $ cd >>> $ make >>>=20 >>> but today, after a fresh svn update of current, I get: >>>=20 >>> Warning: Object directory not changed from original = /a/fr-05/vol/home/system/danny/src/FreeBSD/ARM/elc/sys/modules/mfrc >>> cc -O -pipe -mfloat-abi=3Dsoftfp -DMFRC_DEBUG=3D8 -Werror = -D_KERNEL -DKLD_MODULE -nostdinc = -I/a/fr-05/vol/home/system/danny/src/FreeBSD/ARM/elc/sys/modules/mfrc/../.= . -I. -I@ -I@/contrib/altq -fno-common -ffreestanding -c = /a/fr-05/vol/home/system/danny/src/FreeBSD/ARM/elc/sys/modules/mfrc/../../= dev/mfrc/mfrc.c -o mfrc.o >>> cc: error: argument unused during compilation: '-mfloat-abi=3Dsoftfp' >>> *** Error code 1 >>>=20 >>> so, what magic am I missing? >>=20 >> What does which cc say? >>=20 >=20 > the host I use to cross compile is running 10.1, >=20 > /usr/bin/cc >=20 > but I also tried CC=3Dclang > there is another error, which appeared before, and I solve it by = setting MK_FORMAT_EXTENSIONS=3Dno > (which out it complains =E2=80=A6 malformed conditional = (${MK_FORMAT_EXTENSIONS) =3D=3D =E2=80=9Cno=E2=80=9D) >=20 >=20 > If which cc returns /usr/bin/cc, then you haven't built the = toolchain. ok, the problem is solved by setting BUILDING_SHELL=3D/bin/sh there is still a small problem, apart from the MK_FORMAT issue, in my = module directory, make =E2=80=A6 symlinks @ and machine to /usr/src/ and = /usr/src/sys/arm/include instead of the one from which buildenv was = lauchend, in my case /r+d/vanilla/11/src. setting it by hand gets me a working = loadable module. >=20 > Warner