taglinefilesource code
_setitimer110kernel/itimer.cerror = _setitimer(which, &set_buffer, ovalue ? &get_buffer : 0);
_setitimer463kernel/sched.cextern int _setitimer(int, struct itimerval *, struct itimerval *);
_setitimer469kernel/sched.c_setitimer(ITIMER_REAL, &new, &old);