_thr_cancel_enter2
_thr_cancel_enter2(_get_curthread(), maycancel);
_thr_cancel_enter2(curthread, 0);
_thr_cancel_enter2(curthread, 0);
void _thr_cancel_enter2(struct pthread *, int) __hidden;
_thr_cancel_enter2(curthread, 0);
_thr_cancel_enter2(curthread, 0);
_thr_cancel_enter2(curthread, 0);
_thr_cancel_enter2(curthread, 0);