On Wed, 15 Sep 2010 02:56:33 +0000 (UTC) David Xu <davi...@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. -- Alexander Kabaev
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