Date: Sat, 25 Jan 2014 17:19:08 -0500 From: Glen Barber <gjb@FreeBSD.org> To: Warner Losh <imp@bsdimp.com> Cc: freebsd-arm@FreeBSD.org Subject: Re: Rasbperry Pi, what should TARGET_ARCH be? Message-ID: <20140125221908.GX52955@glenbarber.us> In-Reply-To: <EEBDA9FC-ADCC-4C0E-A224-BB0DA234E717@bsdimp.com> References: <20140125044043.GT52955@glenbarber.us> <EEBDA9FC-ADCC-4C0E-A224-BB0DA234E717@bsdimp.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--Y48FV0AvvvAm5Iyr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jan 25, 2014 at 10:50:45AM -0700, Warner Losh wrote: >=20 > On Jan 24, 2014, at 9:40 PM, Glen Barber wrote: >=20 > > Hi, > >=20 > > I've been working on adding support for embedded systems to the release > > scripts, which set up a chroot to ensure a clean build environment, then > > runs Tim's Crochet scripts. > >=20 > > For the RPI-B, recent updates to the build scripts work fine for > > 11.0-CURRENT and 10.0-STABLE. However, 10.0-RELEASE images fail to > > boot. >=20 > If that worked, it worked by accident. >=20 > > I showed output from 'uname -pm' out-of-band of an 11.0-CURRENT image, > > and was suspicious that the output showed 'arm arm', not 'arm armv6'. > > Warner had the same impression it should be 'arm armv6'. > >=20 > > Hiren poked around the Crochet code, and saw that 'TARGET_ARCH=3Darm' is > > set for the RaspberryPi board by default. >=20 > This is incorrect. >=20 > > As a "just in case" experiment, I retried the 10.0-RELEASE code > > (release/10.0.0/) with TARGET_ARCH=3Darmv6, and sure enough, it works. > >=20 > > But, I don't know *why*. >=20 > It works because that's the architecture that the RPi runs. >=20 > > Is this a change between head/ and stable/10/ versus releng/10.0/ ? > >=20 > > I can handle a differentiation between the branches with regard to this > > (sort of), but I want to make sure the correct TARGET_ARCH is being set > > across the different branches, so it can be handled properly in the > > build scripts, and usable images can be produced. >=20 > The definition should be the same on both branches. You must use TARGET_A= RCH=3Darmv6 on all known branches to produce working code. You might get l= ucky and get TARGET_ARCH=3Darm and have it work, but that's most definitely= not a supported configuration. >=20 > > So, what should be used? And where? >=20 > For RPi, TARGET_ARCH=3Darmv6 everywhere on all branches >=3D 9. RPi isn't= supported 8 and lower. >=20 Thanks Warner. I appreciate it. Glen --Y48FV0AvvvAm5Iyr Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQIcBAEBCAAGBQJS5DhcAAoJELls3eqvi17QK9YP/0eDQiSiK+8P8kDqxWb5mtl9 FG0LSyD8YHeQVEdmXAfUeWZ0BecgMyliiYU5ObLm2Lb+sHptjYsH5O0sELFq5fbI 61FCLPyQrhZBI243zlOS0rOntYVAoc6HxzFOThX8PLx7+vNtFgv8gBXUqJ+QHixc 2n08/dRPbIEwCtiObVbhBxAY1R8p/3SonWIMxdEjMejQMIrNwANDldyNNlOXZxVp Tzo/rM+arxQCahf6kJUcxZ3fX9s47nWOtWUOdSRGpKnVVaL8pyrHYymZIUw+TTuJ rvqMjDY0MYFagCC52agx4wOnnm3DMfphrk2p90B7zB6lDecboZyl7JunRymhF+Da iZ9eP7CeX4sQGdgjL3M1npDAR7Tasp8AtUP1mu170hrLl9MjuF4kot/6jy8rvlSk 2dGedKZktlo/jXRJu609v4OPO8NBQGJa1RZQtQfmNAFahgi6r3U9muaPA0IcFqvE XmXyWsTgMa6n6HVJULDZWnwWcYcWWVVGmXMcumFZeD5OC+CA1FRzPZVYH1Ol6zaj 5gCTyhHpDzxoWJMrFvth8Zt+5inFvFJoflfkP8JLgX4qEARYnjFdaLWJUW9tuika I9DPSPPJVe5/67vNeeI6Yz5RwU3YL0jddeBuD4NHJD8yh8gaJGtxGlTcrlXh+MeB f9hY8TxpMW9EG3FIveie =eLlb -----END PGP SIGNATURE----- --Y48FV0AvvvAm5Iyr--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20140125221908.GX52955>