Date: Sat, 29 Sep 2018 13:36:13 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Shawn Webb <shawn.webb@hardenedbsd.org> Cc: Charlie Li <ml@vishwin.info>, toolchain@freebsd.org, current@freebsd.org Subject: Re: unknown -z value: common-page-size=4096 Message-ID: <B749CCAE-B434-4E17-84D7-8BB1BF4DFEB1@FreeBSD.org> In-Reply-To: <20180929020823.cobrxxru3bbm63wh@mutt-hbsd> References: <8d87fcb0-5c36-39e8-72da-de55b26fdcdf@vishwin.info> <20180929020823.cobrxxru3bbm63wh@mutt-hbsd>
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--Apple-Mail=_1D2DA8A5-7285-48F8-A773-C3DBFB86C313 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On 29 Sep 2018, at 04:08, Shawn Webb <shawn.webb@hardenedbsd.org> wrote: > > On Fri, Sep 28, 2018 at 10:01:31PM -0400, Charlie Li wrote: >> I've switched to using devel/xtoolchain-llvm70 yesterday to build amd64 >> base starting with r338990, and among other issues, ld.lld70 refuses to >> link the kernel: >> >> Building /usr/local/obj/usr/local/src/amd64.amd64/sys/ARDMORE/kernel.full >> --- kernel.full --- >> linking kernel.full >> ld.lld: error: unknown -z value: common-page-size=4096 >> ld.lld: error: unknown -z value: ifunc-noplt >> *** [kernel.full] Error code 1 >> >> make[2]: stopped in /usr/local/obj/usr/local/src/amd64.amd64/sys/ARDMORE >> >> (ARDMORE is basically GENERIC-NODEBUG, not that it matters) >> >> The ifunc-noplt is a known issue, it obviously didn't make it upstream >> in time for LLVM 7.0.0, and thus we carry the feature downstream. >> >> The crux of this link error though, emaste@ quipped in PR 230604 that >> LLD prior to 7.0.0 accepted but ignored unknown options, but now at >> least 7.0.0 disallows unknown options entirely. Which brings up the -z >> common-page-size=4096: has LLD been ignoring this part the whole time, >> and is it of any meaningful use anymore (it seemed to mean something >> with bfd)? > > I noticed the same issues. I reverted parts of recent work by upstream > FreeBSD in HardenedBSD's Cross-DSO CFI branch since that branch uses > clang/llvm/lld 7.0.0. You can apply this changeset from the clang700-import branch: https://svnweb.freebsd.org/changeset/base/337325 or just use the clang700-import branch wholesale. :-) -Dimitry --Apple-Mail=_1D2DA8A5-7285-48F8-A773-C3DBFB86C313 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 iF0EARECAB0WIQR6tGLSzjX8bUI5T82wXqMKLiCWowUCW69jrQAKCRCwXqMKLiCW o+I7AKCTGstZaKIYQwNR5r2dp/IzXuCk8wCgnmR2GfT//IiJGT3u3BD5yMqVTVo= =9tUD -----END PGP SIGNATURE----- --Apple-Mail=_1D2DA8A5-7285-48F8-A773-C3DBFB86C313--
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