svn commit: r212630 - in head/lib/libthr: . thread

[Alexander Kabaev]

On Wed, 15 Sep 2010 02:56:33 +0000 (UTC)
David Xu <davidxu at 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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