Date: Tue, 1 Mar 2011 17:15:44 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r219139 - head/lib/libc/stdlib Message-ID: <201103011715.p21HFiDB043251@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: dim Date: Tue Mar 1 17:15:44 2011 New Revision: 219139 URL: http://svn.freebsd.org/changeset/base/219139 Log: Put in a temporary workaround for ctfmerge hanging on processing kernel.debug (or possibly other files), when WITH_CTF is active. This is caused by a bug in clang's integrated assembler, causing malloc to sometimes hang during initialization in statically linked executables that use threading, such as the copy of ctfmerge that is built during the bootstrap stage of buildworld. The bug has been submitted upstream: http://llvm.org/bugs/show_bug.cgi?id=9352 Note that you might have to rebuild and install libc first, to get your kernel build to finish, because the ctfmerge binary built during bootstrap is linked with your base system's copy of libc.a, which might already contain a bad copy of malloc.o. Modified: head/lib/libc/stdlib/Makefile.inc Modified: head/lib/libc/stdlib/Makefile.inc ============================================================================== --- head/lib/libc/stdlib/Makefile.inc Tue Mar 1 16:42:28 2011 (r219138) +++ head/lib/libc/stdlib/Makefile.inc Tue Mar 1 17:15:44 2011 (r219139) @@ -51,3 +51,7 @@ MLINKS+=tsearch.3 tdelete.3 tsearch.3 tf CFLAGS+= -DMALLOC_PRODUCTION .endif +.if ${CC:T:Mclang} == "clang" +# XXX: Temporary workaround for LLVM PR 9352 +CFLAGS+= ${.IMPSRC:T:Mmalloc.c:C/^.+$/-no-integrated-as/} +.endif
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201103011715.p21HFiDB043251>