Symbol: _thr_umtx_timedwait_uint
lib/libthr/thread/thr_kern.c
196
return _thr_umtx_timedwait_uint(&curthread->wake_addr->value, 0,
lib/libthr/thread/thr_umtx.h
58
int _thr_umtx_timedwait_uint(volatile u_int *mtx, u_int exp, int clockid,