_Tthr_rwlock_tryrdlock
[PJT_RWLOCK_TRYRDLOCK] = {DUAL_ENTRY(_Tthr_rwlock_tryrdlock)},
int _Tthr_rwlock_tryrdlock(pthread_rwlock_t *);
__weak_reference(_Tthr_rwlock_tryrdlock, pthread_rwlock_tryrdlock);
__weak_reference(_Tthr_rwlock_tryrdlock, _pthread_rwlock_tryrdlock);