Date: Thu, 16 Sep 2010 09:43:54 +0000 From: David Xu <davidxu@freebsd.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, kabaev@gmail.com Subject: Re: svn commit: r212630 - in head/lib/libthr: . thread Message-ID: <4C91E6DA.8050907@freebsd.org> In-Reply-To: <20100915.081234.83306312380114674.imp@bsdimp.com> References: <201009150256.o8F2uXwX004579@svn.freebsd.org> <20100914231728.33ca7466@kan.dnsalias.net> <20100915.081234.83306312380114674.imp@bsdimp.com>
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M. Warner Losh wrote: > In message: <20100914231728.33ca7466@kan.dnsalias.net> > Alexander Kabaev <kabaev@gmail.com> writes: > : On Wed, 15 Sep 2010 02:56:33 +0000 (UTC) > : David Xu <davidxu@FreeBSD.org> wrote: > : > : > Author: davidxu > : > Date: Wed Sep 15 02:56:32 2010 > : > New Revision: 212630 > : > URL: http://svn.freebsd.org/changeset/base/212630 > : > > : > Log: > : > add code to support stack unwinding when thread exits. note that > : > only defer-mode cancellation works, asynchrnous mode does not work > : > because it lacks of libuwind's support. stack unwinding is not > : > enabled unless LIBTHR_UNWIND_STACK is defined in Makefile. > : > > : > Modified: > : > head/lib/libthr/Makefile > : > head/lib/libthr/thread/thr_clean.c > : > head/lib/libthr/thread/thr_create.c > : > head/lib/libthr/thread/thr_exit.c > : > head/lib/libthr/thread/thr_init.c > : > head/lib/libthr/thread/thr_private.h > : > > : > Modified: head/lib/libthr/Makefile > : > ============================================================================== > : > --- head/lib/libthr/Makefile Wed Sep 15 01:21:30 2010 > : > (r212629) +++ head/lib/libthr/Makefile Wed Sep 15 02:56:32 > : > 2010 (r212630) @@ -25,6 +25,14 @@ > : > CFLAGS+=-I${.CURDIR}/../../libexec/rtld- > : > CFLAGS+=-I${.CURDIR}/../../libexec/rtld-elf/${MACHINE_CPUARCH} > : > CFLAGS+=-I${.CURDIR}/../libthread_db CFLAGS+=-Winline > : > + > : > +LIBTHR_UNWIND_STACK=yes > : > + > : > +.ifdef LIBTHR_UNWIND_STACK > : > +CFLAGS+=-I${.CURDIR}/../../contrib/gcc -fexceptions > : > +CFLAGS+=-D_PTHREAD_FORCED_UNWIND > : > +.endif > : > + > : > > : > : Reaching into bowels of GCC like that is never good. > > Would this pulling in GPL'd code? > > Warner > It's being resolved.
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