diff options
| author | Roland McGrath <roland@hack.frob.com> | 2014-10-17 14:30:16 -0700 |
|---|---|---|
| committer | Roland McGrath <roland@hack.frob.com> | 2014-10-17 14:30:16 -0700 |
| commit | 184ee94010786a9e0952aff3af39eba1d72287d3 (patch) | |
| tree | b7f4a680b4340f565951a599a6d86f88e61a1711 /nptl/pthread_mutex_unlock.c | |
| parent | 327ae2570744dabf7f065a6b529d16cc22438603 (diff) | |
NPTL: Conditionalize direct futex syscall uses.
Diffstat (limited to 'nptl/pthread_mutex_unlock.c')
| -rw-r--r-- | nptl/pthread_mutex_unlock.c | 5 |
1 files changed, 5 insertions, 0 deletions
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. */ |