28 static void sig_handler_common(int sig, struct siginfo *si, mcontext_t *mc)  in sig_handler_common()  argument
34 	if (sig == SIGSEGV) {  in sig_handler_common()
41 	if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM))  in sig_handler_common()
44 	(*sig_info[sig])(sig, si, &r);  in sig_handler_common()
64 void sig_handler(int sig, struct siginfo *si, mcontext_t *mc)  in sig_handler()  argument
69 	if (!enabled && (sig == SIGIO)) {  in sig_handler()
76 	sig_handler_common(sig, si, mc);  in sig_handler()
92 void alarm_handler(int sig, struct siginfo *unused_si, mcontext_t *mc)  in alarm_handler()  argument
123 static void (*handlers[_NSIG])(int sig, struct siginfo *si, mcontext_t *mc) = {
136 static void hard_handler(int sig, siginfo_t *si, void *p)  in hard_handler()  argument
140 	unsigned long pending = 1UL << sig;  in hard_handler()
162 		while ((sig = ffs(pending)) != 0){  in hard_handler()
163 			sig--;  in hard_handler()
164 			pending &= ~(1 << sig);  in hard_handler()
165 			(*handlers[sig])(sig, (struct siginfo *)si, mc);  in hard_handler()
179 void set_handler(int sig)  in set_handler()  argument
193 	if (sig == SIGSEGV)  in set_handler()
196 	if (sigismember(&action.sa_mask, sig))  in set_handler()
201 	if (sigaction(sig, &action, NULL) < 0)  in set_handler()
205 	sigaddset(&sig_mask, sig);  in set_handler()