Date: Sat, 11 Aug 2018 18:20:01 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Warner Losh <imp@bsdimp.com> Cc: "freebsd-toolchain@FreeBSD.org" <freebsd-toolchain@freebsd.org>, Ed Maste <emaste@freebsd.org> Subject: Re: Broken arm support in clang now? Message-ID: <1880880F-9D9D-47E0-A7A4-5369A3770F89@FreeBSD.org> In-Reply-To: <CANCZdfpmDN-nAkViuEx-tKpPhOdRYX=xNu6s8E2o6F4xC2WPnA@mail.gmail.com> References: <CANCZdfpmDN-nAkViuEx-tKpPhOdRYX=xNu6s8E2o6F4xC2WPnA@mail.gmail.com>
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--Apple-Mail=_C50BDB04-8FDC-4C23-92E2-C07BA0780DEC Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 11 Aug 2018, at 16:55, Warner Losh <imp@bsdimp.com> wrote: >=20 > It looks like armv5 clang bogusly uses lld: >=20 > =46rom a 'make buildkernel' of the RT1310 kernel config: >=20 > cc -target arm-gnueabi-freebsd12.0 > --sysroot=3D/usr/home/imp/obj/usr/home/imp/git/head/arm.arm/tmp > -B/usr/home/imp/obj/usr/home/imp/git/head/arm.arm/tmp/usr/bin -c -O = -pipe > -g -nostdinc -I. -I/usr/home/imp/git/head/sys > -I/usr/home/imp/git/head/sys/contrib/ck/include > -I/usr/home/imp/git/head/sys/contrib/libfdt > -I/usr/home/imp/git/head/sys/gnu/dts/include -D_KERNEL > -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -march=3Darmv5te > -funwind-tables -ffreestanding -fwrapv -gdwarf-2 -Wall = -Wredundant-decls > -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes = -Wpointer-arith > -Wcast-qual -Wundef -Wno-pointer-sign -D__printf__=3D__freebsd_kprintf__= > -Wmissing-include-dirs -fdiagnostics-show-option -Wno-unknown-pragmas > -Wno-error-tautological-compare -Wno-error-empty-body > -Wno-error-parentheses-equality -Wno-error-unused-function > -Wno-error-pointer-sign -Wno-error-shift-negative-value > -Wno-address-of-packed-member -mfpu=3Dnone -std=3Diso9899:1999 = -Werror vers.c > linking kernel.full > ld: warning: lld uses extended branch encoding, no object with = architecture > supporting feature detected. > ld: warning: lld may use movt/movw, no object with architecture = supporting > feature detected. > text data bss dec hex filename > 3448944 176776 655360 4281080 0x4152f8 kernel.full >=20 > Any clues on how I can track this down? What does /usr/bin/ld -v output? As far as I can see, MK_LLD_BOOTSTRAP and MK_LLD_IS_LD are only enabled by default for aarch64 and amd64. So do you have any of those settings in your src.conf or environment? -Dimitry --Apple-Mail=_C50BDB04-8FDC-4C23-92E2-C07BA0780DEC Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.2 iF0EARECAB0WIQR6tGLSzjX8bUI5T82wXqMKLiCWowUCW28MsQAKCRCwXqMKLiCW o/iyAJ0TwEFfF/bzMn2LjIsUA9TKRssQDwCfXRhGkLZWFTDUUEJjBg40R+yYhkY= =GJfM -----END PGP SIGNATURE----- --Apple-Mail=_C50BDB04-8FDC-4C23-92E2-C07BA0780DEC--
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