THR_UMTX_LOCK
THR_UMTX_LOCK(curthread, &bar->b_lock);
THR_UMTX_LOCK(curthread, &_thr_event_lock);
THR_UMTX_LOCK(curthread, &_thr_event_lock);
THR_UMTX_LOCK(curthread, &_thr_atfork_lock);
THR_UMTX_LOCK(curthread, &_thr_atfork_lock);
THR_UMTX_LOCK(curthread, &_thr_atfork_lock);
THR_UMTX_LOCK(curthread, &_thr_atfork_lock);
THR_UMTX_LOCK(curthread, &_thr_atfork_lock);
THR_UMTX_LOCK(curthread, &_thr_atfork_lock);
THR_UMTX_LOCK(curthread, &(curthread)->lock);
THR_UMTX_LOCK(curthread, &(curthread)->lock);
THR_UMTX_LOCK(curthread, &spinlock_static_lock);
THR_UMTX_LOCK(curthread, (volatile umtx_t *)&lck->access_lock);