From 184ee94010786a9e0952aff3af39eba1d72287d3 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 17 Oct 2014 14:30:16 -0700 Subject: NPTL: Conditionalize direct futex syscall uses. --- nptl/pthread_mutex_unlock.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'nptl/pthread_mutex_unlock.c') diff --git a/nptl/pthread_mutex_unlock.c b/nptl/pthread_mutex_unlock.c index 95ae9337c8..8064de09c1 100644 --- a/nptl/pthread_mutex_unlock.c +++ b/nptl/pthread_mutex_unlock.c @@ -158,6 +158,10 @@ __pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr) THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); break; + /* The PI support requires the Linux futex system call. If that's not + available, pthread_mutex_init should never have allowed the type to + be set. So it will get the default case for an invalid type. */ +#ifdef __NR_futex case PTHREAD_MUTEX_PI_RECURSIVE_NP: /* Recursive mutex. */ if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid)) @@ -245,6 +249,7 @@ __pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr) THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL); break; +#endif /* __NR_futex. */ case PTHREAD_MUTEX_PP_RECURSIVE_NP: /* Recursive mutex. */ -- cgit 1.4.1