KLOCK_WRAP
KLOCK_WRAP(fd = open(path, flags, 0644));
KLOCK_WRAP(nn = readv(fd, iov, iovlen));
KLOCK_WRAP(nn = preadv(fd, iov, iovlen, off));
KLOCK_WRAP(nn = writev(fd, iov, iovlen));
KLOCK_WRAP(nn = pwritev(fd, iov, iovlen, off));
KLOCK_WRAP((rv = pthread_join(*pt, NULL)));
KLOCK_WRAP(NOFAIL_ERRNO(pthread_mutex_lock(&mtx->pthmtx)));
KLOCK_WRAP(nanosleep(&ts, NULL));
KLOCK_WRAP(NOFAIL_ERRNO(
KLOCK_WRAP(NOFAIL_ERRNO(
KLOCK_WRAP(NOFAIL_ERRNO(pthread_rwlock_rdlock(&rw->pthrw)));