From owner-freebsd-arm@freebsd.org Mon Apr 4 05:22:39 2016 Return-Path: Delivered-To: freebsd-arm@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 F0A49B01577 for ; Mon, 4 Apr 2016 05:22:39 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-211-156.reflexion.net [208.70.211.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B595517DC for ; Mon, 4 Apr 2016 05:22:39 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 22482 invoked from network); 4 Apr 2016 05:22:59 -0000 Received: from unknown (HELO rtc-sm-01.app.dca.reflexion.local) (10.81.150.1) by 0 (rfx-qmail) with SMTP; 4 Apr 2016 05:22:59 -0000 Received: by rtc-sm-01.app.dca.reflexion.local (Reflexion email security v7.90.2) with SMTP; Mon, 04 Apr 2016 01:22:42 -0400 (EDT) Received: (qmail 12188 invoked from network); 4 Apr 2016 05:22:41 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with SMTP; 4 Apr 2016 05:22:41 -0000 X-No-Relay: not in my network X-No-Relay: not in my network X-No-Relay: not in my network Received: from [192.168.1.8] (c-76-115-7-162.hsd1.or.comcast.net [76.115.7.162]) by iron2.pdx.net (Postfix) with ESMTPSA id 9FAB8B1E001; Sun, 3 Apr 2016 22:22:30 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: 11.0: head/lib/libsysdecode/Makefile for . . ./libsoft/usr/include uses CPP when XCPP needed? From: Mark Millard In-Reply-To: Date: Sun, 3 Apr 2016 22:22:36 -0700 Cc: FreeBSD Toolchain , freebsd-arm Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Warner Losh X-Mailer: Apple Mail (2.3124) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Apr 2016 05:22:40 -0000 On 2016-Apr-3, at 9:48 PM, Warner Losh wrote: >=20 > On Sun, Apr 3, 2016 at 10:25 PM, Mark Millard = wrote: > For an amd64 -> armv7a (rpi2 targeting) cross-compile the code >=20 > > # $FreeBSD: head/lib/libsysdecode/Makefile 295931 2016-02-23 = 20:00:55Z jhb $ > > > > . . . > > ioctl.c: mkioctls > > env MACHINE=3D${MACHINE} CPP=3D"${CPP}" \ > > /bin/sh ${.CURDIR}/mkioctls ${DESTDIR}${INCLUDEDIR} = > ${.TARGET} >=20 > (with its use of CPP instead of the XCPP) got: >=20 > > --- all_subdir_lib/libsysdecode --- > > --- ioctl.c --- > > env MACHINE=3Darm CPP=3D"/usr/bin/clang-cpp" /bin/sh = /usr/src/lib/libsysdecode/mkioctls = /usr/obj/clang/arm.armv6/usr/src/libsoft/usr/include > ioctl.c > > . . . > > --- all_subdir_lib/libsysdecode --- > > In file included from :17: > > In file included from = /usr/obj/clang/arm.armv6/usr/src/libsoft/usr/include/dev/nvme/nvme.h:36: > > In file included from = /usr/obj/clang/arm.armv6/usr/src/libsoft/usr/include/sys/param.h:135: > > In file included from = /usr/obj/clang/arm.armv6/usr/src/libsoft/usr/include/machine/param.h:49: > > = /usr/obj/clang/arm.armv6/usr/src/libsoft/usr/include/machine/acle-compat.h= :182:4: error: Unable to determine architecture version. > > # error Unable to determine architecture version. > > ^ >=20 > In my case I had the following in the in-use src.conf in order to = control the cross compile specifics: >=20 > > XCC=3D/usr/bin/clang -target ${TO_TYPE}--freebsd11.0-gnueabi = -march=3Darmv7a -mcpu=3Dcortex-a7 -mno-unaligned-access > > XCXX=3D/usr/bin/clang++ -target ${TO_TYPE}--freebsd11.0-gnueabi = -march=3Darmv7a -mcpu=3Dcortex-a7 -mno-unaligned-access > > XCPP=3D/usr/bin/clang-cpp -target ${TO_TYPE}--freebsd11.0-gnueabi = -march=3Darmv7a -mcpu=3Dcortex-a7 -mno-unaligned-access >=20 >=20 > (I've been doing such for a long time but only just progressed to a = 11.0 source vintage with libsoft involved.) >=20 > Even if I'm out of bounds for technique in some way I expect that >=20 > > ioctl.c: mkioctls > > env MACHINE=3D${MACHINE} CPP=3D"${CPP}" \ > > /bin/sh ${.CURDIR}/mkioctls ${DESTDIR}${INCLUDEDIR} = > ${.TARGET} >=20 > is not doing everything it should to have the full context needed for = . . ./machine/acle-compat.h . >=20 > It's gotta be upstream. XCPP XCC and XCXX are all exclusive to = Makefile.inc1. It's up to it to sort out the > rest... And none of the X{AR,AS,LD,etc} are defined, so there's bound = to be an impedance mismatch. :) > In the past when I've seen this it's been due to some kind of variable = contamination, perhaps one that's > not otherwise known... >=20 > Warner For reference the src.conf used for amd64 -> arm is: > KERNCONF=3DRPI2-NODBG > TARGET=3Darm > .if ${.MAKE.LEVEL} =3D=3D 0 > TARGET_ARCH=3Darmv6 > .export TARGET_ARCH > .endif > # > WITH_LIBSOFT=3D > WITH_FAST_DEPEND=3D > WITH_LIBCPLUSPLUS=3D > WITH_BINUTILS_BOOTSTRAP=3D > WITH_CLANG=3D > WITH_CLANG_IS_CC=3D > WITH_CLANG_FULL=3D > WITH_LLDB=3D > WITH_CLANG_EXTRAS=3D > WITH_BOOT=3D > # > WITHOUT_LIB32=3D > WITHOUT_ELFTOOLCHAIN_BOOTSTRAP=3D > WITHOUT_CLANG_BOOTSTRAP=3D > WITHOUT_GCC_BOOTSTRAP=3D > WITHOUT_GCC=3D > WITHOUT_GNUCXX=3D > # > NO_WERROR=3D > MALLOC_PRODUCTION=3D > # > WITH_DEBUG_FILES=3D > # > .if ${.MAKE.LEVEL} =3D=3D 0 > XCC=3D/usr/bin/clang -target ${TARGET_ARCH}--freebsd11.0-gnueabi = -march=3Darmv7a -mcpu=3Dcortex-a7 -mno-unaligned-access > XCXX=3D/usr/bin/clang++ -target ${TARGET_ARCH}--freebsd11.0-gnueabi = -march=3Darmv7a -mcpu=3Dcortex-a7 -mno-unaligned-access > XCPP=3D/usr/bin/clang-cpp -target ${TARGET_ARCH}--freebsd11.0-gnueabi = -march=3Darmv7a -mcpu=3Dcortex-a7 -mno-unaligned-access > .export XCC > .export XCXX > .export XCPP > .endif > # > .if ${.MAKE.LEVEL} =3D=3D 0 > CC=3D/usr/bin/clang > CXX=3D/usr/bin/clang++ > CPP=3D/usr/bin/clang-cpp > .export CC > .export CXX > .export CPP > .endif =3D=3D=3D Mark Millard markmi at dsl-only.net