Date: Thu, 13 Sep 2012 11:27:35 +0200 From: Edward Meewis <ed@extraordinarymachine.nl> To: Brooks Davis <brooks@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: Building world with clang ToT Message-ID: <5051A707.1030901@extraordinarymachine.nl> In-Reply-To: <20120912163455.GA86169@lor.one-eyed-alien.net> References: <5050680C.4020402@extraordinarymachine.nl> <50506D6E.3040905@FreeBSD.org> <505075C3.7010504@extraordinarymachine.nl> <50507CE6.6060803@FreeBSD.org> <5050AAD6.2080202@extraordinarymachine.nl> <5050B5BE.7090005@FreeBSD.org> <20120912163455.GA86169@lor.one-eyed-alien.net>
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Hi Brook, On 12-09-12 18:34, Brooks Davis wrote: > <snip> > Note that some people have been working on external toolchain support. > > This would aim to make it possible to do what you were trying, e.g. > building world using WITHOUT_TOOLCHAIN, which sets both WITHOUT_CLANG > and WITHOUT_GCC, among others. > > However, I am not sure how far these efforts have come by now. :-) > I've got some patches that aren't quite ready for prime-time that > allow me to cross build world with an external CLANG. I'll post them to > the toolchain@ list when they are closer to ready (hopefully quite soon). > > -- Brooks I'd be interested in those, even if there are some rough edges. (I don't mind sub-prime, this time ;) FWIW: The clang build finished too, but with two hick-ups: 1. - kdump: build reports 4 errors: ===> usr.bin/kdump (depend) sh /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/mksubr /usr/obj/usr/home/emeewis/contrib/FreeBSD-HEAD/tmp/usr/include >kdump_subr.c env MACHINE=amd64 CPP="cpp" sh /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/mkioctls print /usr/obj/usr/home/emeewis/contrib/FreeBSD-HEAD/tmp/usr/include > ioctl.c <stdin>:8:31: error: cam/scsi/scsi_enc.h: No such file or directory <stdin>:17:33: error: dev/filemon/filemon.h: No such file or directory <stdin>:35:33: error: fs/nandfs/nandfs_fs.h: No such file or directory <stdin>:46:24: error: net/netmap.h: No such file or directory (As a consequence ?) clang doesn't pick up 2 symbols: MFI_CMD32 and MFIIO_PASSTHRU32 which are defined if COMPAT_FREEBSD32 is set in sys/dev/mfi/mfi_ioctl.h 2. lint calls tmp/usr/cc directly: buildworld-clang.log:===> usr.bin/xlint/llib (all) buildworld-clang.log:lint -cghapbx -Cposix /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/xlint/llib/llib-lposix buildworld-clang.log:lint: cannot exec /usr/obj/usr/home/emeewis/contrib/FreeBSD-HEAD/tmp/usr/bin/cc: No such file or directory buildworld-clang.log:Stop in /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/xlint/llib. A link from cc to clang in the same directory fixes that. Regards, Ed. ps: re. 1: the gcc build calls: ===> usr.bin/kdump (depend) /bin/sh /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/../../sys/kern/makesyscalls.sh /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/../../sys/amd64/linux32/syscalls.master /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/linux_syscalls.conf sh /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/mksubr /usr/obj/usr/home/emeewis/contrib/FreeBSD-HEAD/tmp/usr/include | sed -n 's/^\([a-z].*)\)$/void \1;/p' >kdump_subr.h echo "int nlinux_syscalls = sizeof(linux_syscallnames) / sizeof(linux_syscallnames[0]);" >> linux_syscalls.c env MACHINE=amd64 CPP="cpp" sh /usr/home/emeewis/contrib/FreeBSD-HEAD/usr.bin/kdump/mkioctls print /usr/obj/usr/home/emeewis/contrib/FreeBSD-HEAD/tmp/usr/include > ioctl.c
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