Date: Fri, 26 Dec 2014 13:11:13 -0800 From: Sean Bruno <sbruno@ignoranthack.me> To: Jeremy Brown <mischif@mischivous.com> Cc: freebsd-embedded@freebsd.org Subject: Re: Help Compiling armv6 Ports from x64 Message-ID: <549DCEF1.2040401@ignoranthack.me> In-Reply-To: <CAGL1beDma1bxpQJkSnFD%2Bo3m0q4GfcMJ1Rg09tiF=DQqXeQnwQ@mail.gmail.com> References: <CAGL1beBOVDRh-7kA8QnG6qkm9VH3EM7YSEhtMhrgTU9mMUYfQw@mail.gmail.com> <549B6584.3000608@ignoranthack.me> <CAGL1beC5RneVCuw%2BbczhM5_szfDe-FZbtqCXfummv9FySA_aJA@mail.gmail.com> <549B6EB3.90204@ignoranthack.me> <CAGL1beDma1bxpQJkSnFD%2Bo3m0q4GfcMJ1Rg09tiF=DQqXeQnwQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 12/25/14 07:17, Jeremy Brown wrote: > Sean, > > It seems the binmiscctl command was the last part of the puzzle, > now everything's working. But I have one last issue I'm trying to > solve: > > Now I'm trying to use the x64 cross compiler instead of emulating > through the arm one. I've copied my toolchain over and I've set up > variables for CC, et al to refer to the x64 versions in > /root/.profile, but I can't get make to pick up on them. Is there > something else I need to do? > > -Jeremy I think these things are actually controlled by /etc/make.conf in the jail/chroot that you are using. e.g. poudriere sets up some CC= and friends that does some of this for me, but you'll have to replicate by hand: % cat /usr/local/poudriere/jails/11-armv6/etc/make.conf CC=/nxb-bin/usr/bin/cc CPP=/nxb-bin/usr/bin/cpp CXX=/nxb-bin/usr/bin/c++ AS=/nxb-bin/usr/bin/as NM=/nxb-bin/usr/bin/nm LD=/nxb-bin/usr/bin/ld OBJCOPY=/nxb-bin/usr/bin/objcopy SIZE=/nxb-bin/usr/bin/size STRIPBIN=/nxb-bin/usr/bin/strip SED=/nxb-bin/usr/bin/sed READELF=/nxb-bin/usr/bin/readelf RANLIB=/nxb-bin/usr/bin/ranlib YACC=/nxb-bin/usr/bin/yacc NM=/nxb-bin/usr/bin/nm MAKE=/nxb-bin/usr/bin/make STRINGS=/nxb-bin/usr/bin/strings AWK=/nxb-bin/usr/bin/awk FLEX=/nxb-bin/usr/bin/flex > > On Wed, Dec 24, 2014 at 8:56 PM, Sean Bruno > <sbruno@ignoranthack.me> wrote: > > On 12/24/14 17:29, Jeremy Brown wrote: >>>> Sean, >>>> >>>> Does poudriere work with previously-established roots or does >>>> it have to generate its own? I'm using crochet >>>> <https://github.com/kientzle/crochet-freebsd>; to create my >>>> image, so I can do whatever I want to the filesystem it >>>> creates and have it apply to the image. >>>> > > Poudirere's main purpose is to create a package repo for remote > installation. > > So, I'm guessing that you don't want that. > > What you "want" is the magical binmiscctl command on your host > system and then copy /usr/local/qemu-user-arm into your jail. > > Modify the binmiscctl(8) command I pointed you at below to point > to /usr/local/bin/qemu-user-arm. > > Then you should be able to "chroot" into your existing chroot and > it will act like an arm box. It will be slow, but currently > there's no reliable way that I am aware of to get what you and > other need done. > > > sean > >>>> Also, will poudriere actually install a package and modify >>>> necessary files to let the system know a port is installed, >>>> or does it only create the package and leave it to me to >>>> install? >>>> >>>> -Jeremy > > > > >>>> >>>> On Wed, Dec 24, 2014 at 8:16 PM, Sean Bruno >>>> <sbruno@ignoranthack.me> wrote: >>>> >>>> On 12/24/14 16:34, Jeremy Brown wrote: >>>>>>> I have a VM running FreeBSD 10.1 x64 that I'm trying to >>>>>>> use to create an image that will run on a Raspberry Pi. >>>>>>> I've managed to get the base system working, but I >>>>>>> can't figure out how to compile ports for the image. I >>>>>>> know my cross-compilation toolchain is working, as I >>>>>>> can build the kernel and world without issue. >>>>>>> >>>>>>> For sake of example, say my arm root is at /tmp/rootfs, >>>>>>> my toolchain is at /usr/armv6-freebsd/usr/bin and some >>>>>>> other assorted cross-compilation items are at >>>>>>> /usr/obj/armv6-freebsd. >>>>>>> >>>>>>> Some of the commands I have tried to build a port are: >>>>>>> >>>>>>> PATH=/path/to/toolchain:${PATH} make TARGET=arm >>>>>>> TARGET_ARCH=armv6 install (this typically fails during >>>>>>> compilation) >>>>>>> >>>>>>> PATH=/path/to/toolchain:${PATH} make TARGET=arm >>>>>>> TARGET_ARCH=armv6 configure install (this typically >>>>>>> fails during configuration, the error I get is >>>>>>> something along the lines of "cannot read C-compiled >>>>>>> file"; in addition the configure script never notices >>>>>>> that I am trying to cross-compile) >>>>>>> >>>>>>> PATH=/path/to/toolchain:${PATH} make >>>>>>> CONFIGURE_ARGS="--host=armv6-freebsd" configure >>>>>>> install (this typically fails during compilation for >>>>>>> varying reasons, but at least it'll recognize that I'm >>>>>>> cross-compiling; including TARGET and TARGET_ARCH makes >>>>>>> no difference) >>>>>>> >>>>>>> make TARGET=arm TARGET_ARCH=armv6 DESTDIR=/tmp/rootfs >>>>>>> install (this was what I originally tried, when the >>>>>>> chroot kicked in it would try to run the ARM version of >>>>>>> /bin/sh; as the VM is x64 this would always give an >>>>>>> exec format error before failing) >>>>>>> >>>>>>> make TARGET=arm TARGET_ARCH=armv6 DESTDIR=/tmp/rootfs >>>>>>> CHROOTED=no install (this would seem to work, but >>>>>>> would install the port to the VM instead of the >>>>>>> filesystem for the image, and in addition would be >>>>>>> compiled x64 instead of armv6) >>>>>>> >>>>>>> There are others, but these are the ones I can remember >>>>>>> the best right now. I understand there won't be any >>>>>>> precompiled ports, and I don't want to have to build my >>>>>>> desired ports on the Pi itself (despite the fact that >>>>>>> doing so would be agonizingly slow, the space required >>>>>>> to store the ports tree and compile what I need would >>>>>>> explode the size of the image from ~400MB to >>>>>>>> 2GB). >>>>>>> >>>>>>> I've tried many different websites (see here >>>>>>> <http://www.cruwe.de/?p=78>, here < >>>> > http://allskyee.blogspot.com/2014/02/freebsd-10-ports-cross-compile-amd64-to.html >>>>>>> >>>>>>> >>>>>>> >>>> >>>> > > , here >>>>>>> < >>>> > http://ray-freebsd.blogspot.kr/2011/09/cross-compiling-ports-for-freebsd.html >>>>>>> >>>>>>> >>>>>>> >>>> >>>> > > , here <http://blog.ignoranthack.me/?p=221>, here >>>>>>> < >>>> > http://lists.freebsd.org/pipermail/freebsd-current/2012-November/037469.html >>>>>>> >>>> > > ), >>>>>>> >>>>>>> >>>> but none of their methods have resulted in a successful >>>> compilation. >>>>>>> >>>>>>> Do you know of a method to compile armv6 ports on an >>>>>>> x64 machine, or can you direct me to someone who >>>>>>> might? >>>>>>> >>>>>>> -Jeremy >>>> >>>> At this point, poudriere can build packages by default. >>>> >>>> If you want armv6 packages for RPi or BBB, get poudriere 3.1 >>>> on your system with qemu-bsd-user. >>>> >>>> Setup this arcane binmiscctl(8) command: /usr/sbin/binmiscctl >>>> add armv6 --interpreter "/usr/local/bin/qemu-arm" \ --magic >>>> >>>> > "\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00" >>>> >>>> > > \ >>>> --mask >>>> >>>> > "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" >>>> >>>> > > \ >>>> --size 20 --set-enabled >>>> >>>> >>>> That is the command that will redirect execution of armv6 >>>> binaries to qemu-bsd-user. >>>> >>>> Build an armv6 jail with: >>>> >>>> poudriere jail -c -j armv6 -m svn -v head -a arm.armv6 -x >>>> >>>> And build your ports with poudriere via: poudriere bulk -j >>>> amrv6 <listofports> >>>> >>>> You can fetch packages from the freebsd cluster arm builder >>>> if you wish as well: >>>> >>>> http://chips.ysv.freebsd.org/packages/11armv6-11armv6/ >>>> >>>> Sean >>>> >>>> >>>> >>>>> >>>> > >> > -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJUnc7vXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwAAoJEBIB78oecn5k5cYH/2NxHEtE8sgVzoWZ84nHL26B 2U7IRHypCrPuSxtkcBb8hnQJk1F2ybeC/i56BwuT1Gjois/0Yu3EeybBw2zHxU5q hvyyvGJXptUTnXD/JQHEcV/hqbD6j5ng5iXds+LB8htmbfoROtH1Bxs+ZXhmwqsH aJ7cL4Ufmx0/VtbPevFU9Lzxes1r3JpbeOrX54DfLgLmEEe8sbj+eSNW/St49so9 jk5wXxPy6VbSz/YC4gMl0S6Ev1VQtBeyEg+2kRmaUf/1JlxYh+dG8j5FaihZnjo9 SBloROfgjIRzWRtEgCKZVsOjlREg8kvIik0s3jOUgwjwvRJW3Pc4UnyFyBmoEMc= =8zMx -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?549DCEF1.2040401>