Don't really spin on a spinlock; silently convert it to the same

low-level lock used by the libpthread implementation.  In the
future, we'll eliminate spinlocks from libc but that will wait
until after 5.1-release.

Don't call an application signal handler if the handler is
the same as the library-installed handler.  This seems to
be possible after a fork and is the cause of konsole hangs.

Approved by:	re@ (jhb)

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/libpthread/thread/thr_private.h b/lib/libpthread/thread/thr_private.h
index a6e8653..a6d3494 100644
--- a/lib/libpthread/thread/thr_private.h
+++ b/lib/libpthread/thread/thr_private.h
@@ -1114,6 +1114,7 @@ void    _thr_sched_frame(struct pthread_sigframe *);
 void	_thr_sched_switch(struct pthread *);
 void	_thr_sched_switch_unlocked(struct pthread *);
 void    _thr_set_timeout(const struct timespec *);
+void	_thr_seterrno(struct pthread *, int);
 void    _thr_sig_handler(int, siginfo_t *, ucontext_t *);
 void    _thr_sig_check_pending(struct pthread *);
 void	_thr_sig_rundown(struct pthread *, ucontext_t *,
@@ -1121,7 +1122,7 @@ void	_thr_sig_rundown(struct pthread *, ucontext_t *,
 void	_thr_sig_send(struct pthread *pthread, int sig);
 void	_thr_sig_wrapper(void);
 void	_thr_sigframe_restore(struct pthread *thread, struct pthread_sigframe *psf);
-void	_thr_seterrno(struct pthread *, int);
+void	_thr_spinlock_init(void);
 void	_thr_enter_cancellation_point(struct pthread *);
 void	_thr_leave_cancellation_point(struct pthread *);
 int	_thr_setconcurrency(int new_level);