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authordavidxu <davidxu@FreeBSD.org>2010-09-15 02:56:32 +0000
committerdavidxu <davidxu@FreeBSD.org>2010-09-15 02:56:32 +0000
commitb00fcaa22c4d87d8f0c95731f5e8325abfbc2075 (patch)
treefedf4c03bd378db206ea154a805f96e271f05b28 /lib/libthr/thread/thr_init.c
parent6be463abbb69aa61ab186c9cba314068612328ba (diff)
downloadFreeBSD-src-b00fcaa22c4d87d8f0c95731f5e8325abfbc2075.zip
FreeBSD-src-b00fcaa22c4d87d8f0c95731f5e8325abfbc2075.tar.gz
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.
Diffstat (limited to 'lib/libthr/thread/thr_init.c')
-rw-r--r--lib/libthr/thread/thr_init.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/libthr/thread/thr_init.c b/lib/libthr/thread/thr_init.c
index c20f3c8..56541a8 100644
--- a/lib/libthr/thread/thr_init.c
+++ b/lib/libthr/thread/thr_init.c
@@ -413,6 +413,10 @@ init_main_thread(struct pthread *thread)
&sched_param);
thread->attr.prio = sched_param.sched_priority;
+#ifdef _PTHREAD_FORCED_UNWIND
+ thread->unwind_stackend = _usrstack;
+#endif
+
/* Others cleared to zero by thr_alloc() */
}
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