Date: Tue, 21 May 2013 12:00:00 -0500 From: Brooks Davis <brooks@FreeBSD.org> To: Andreas Tobler <andreast@FreeBSD.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, Brooks Davis <brooks@FreeBSD.org>, src-committers@FreeBSD.org Subject: Re: svn commit: r250659 - in head: . share/mk tools/build/options tools/tools/makeroot Message-ID: <20130521170000.GC12757@lor.one-eyed-alien.net> In-Reply-To: <519A84DD.8030804@FreeBSD.org> References: <201305151430.r4FEU31J061480@svn.freebsd.org> <51955849.4020503@FreeBSD.org> <20130520195114.GE2630@lor.one-eyed-alien.net> <519A80A7.8080905@FreeBSD.org> <20130520201006.GG2630@lor.one-eyed-alien.net> <519A84DD.8030804@FreeBSD.org>
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--St7VIuEGZ6dlpu13 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, May 20, 2013 at 10:17:33PM +0200, Andreas Tobler wrote: > On 20.05.13 22:10, Brooks Davis wrote: > > On Mon, May 20, 2013 at 09:59:35PM +0200, Andreas Tobler wrote: > >> On 20.05.13 21:51, Brooks Davis wrote: > >>> On Fri, May 17, 2013 at 12:06:01AM +0200, Andreas Tobler wrote: > >>>> On 15.05.13 16:30, Brooks Davis wrote: > >>>>> Author: brooks > >>>>> Date: Wed May 15 14:30:03 2013 > >>>>> New Revision: 250659 > >>>>> URL: http://svnweb.freebsd.org/changeset/base/250659 > >>>>> > >>>>> Log: > >>>>> Add support for an external cross compiler. The cross compiler is > >>>>> specified by passing the XCC, XCXX, and XCPP variables (correspon= ding to > >>>>> CC, CXX, and CPP) to buildworld/buildkernel. The compiler must b= e clang > >>>>> or be configured to target the appropriate architecture. > >>>>> =20 > >>>>> To speed build times, if XCC is an absolute path or > >>>>> WITHOUT_CROSS_COMPILER is defined then no cross compiler will be = built > >>>>> during the cross-tools stage. > >>>>> =20 > >>>>> Limited documentation of this feature can currently be found at: > >>>>> =20 > >>>>> https://wiki.freebsd.org/ExternalToolchain > >>>>> =20 > >>>>> This functionality should be considered experimental and is subje= ct to > >>>>> change without notice. > >>>>> =20 > >>>>> Sponsored by: DARPA, AFRL > >>>>> Discussed with: imp, sjg > >>>> > >>>> I had to revert this commit to be able to build world and kernel with > >>>> WITHOUT_CLANG_IS_CC in /etc/src.conf > >>>> > >>>> It did not find the headers (like math.h) when building the 32-bit p= art > >>>> on amd64. > >>> > >>> I'll need more information to do any useful debugging. How is the ho= st > >>> configured? If it's not 100% stock, I need to know what WITH/WITHOUT > >>> options were set to build it. Are you setting any options other than > >>> WITHOUT_CLANG_IS_CC during this build? > >> > >> Source is svn -CURRENT. There is no other option set than > >> WITHOUT_CLANG_IS_CC. Beside I use MALLOC_PRODUCTION=3D1 > >=20 > > Is /usr/bin/cc gcc or clang? >=20 > /usr/bin/cc -v > Using built-in specs. > Target: amd64-undermydesk-freebsd > Configured with: FreeBSD/amd64 system compiler > Thread model: posix > gcc version 4.2.1 20070831 patched [FreeBSD] >=20 > > Just to be sure. Are you setting CC anywhere? > >=20 > >> This happens on both 32-capable targets, amd64 and powerpc64. > >> > >> I figured that there are at least three headers 'missing' so far in > >> src/lib32/usr/include: > >> - math.h > >> - fenv.h > >> - libutil.h > >> > >> If I manually copy them to this location I can continue building until > >> /usr/bin/ld complains about not being configured for sysroots. > >> I just restarted the whole worldbuild again with the above mentionend > >> headers in place. > >=20 > > Hmm, this is really weird. /usr/bin/ld should never run after the > > bootstrap phase unless you actually use the X* variables. >=20 > Well, it might be that I did something in a hurry, that's why I > restarted the whole build. > What I did, I cleaned the whole obj dir and did a 'make build32' in > /usr/src (to save some time), then I got the exact same failures as when > I started from scratch. Now I tried to find all the headers which the > compiler was complaining about, copied them to > /usr/obj/****/src/lib32/usr/include, finished the compilation stage and > at the linker stage 'ld' complained. >=20 > Now I'm waiting for the build from beginning with copied headers to see > what happens. The problem seems to be that clang and gcc don't agree about the meaning of -isystem and --sysroot. I've committed a change that I belive restores the status quo. -- Brooks --St7VIuEGZ6dlpu13 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iD8DBQFRm6gPXY6L6fI4GtQRApTJAKDbFoVDMhPkLeQA6P98BfYkfgx3UwCgruXu bM4vaNZ5CwdcsMraTqEMLFw= =UaWU -----END PGP SIGNATURE----- --St7VIuEGZ6dlpu13--
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