fsig
static void (*fsig)();
fsig = signal(SIGALRM, falarm);
(void) signal(SIGALRM, fsig);
(fsig(&p->p_sig, t) || fsig(&t->t_sig, t)))
if ((sig = fsig(&t->t_sig, t)) != 0) {
} else if ((sig = fsig(&p->p_sig, t)) != 0) {
extern int fsig(k_sigset_t *, kthread_t *);