71 static void check_cancel(struct pthread *curthread, ucontext_t *ucp);
188 sigcancel_handler(int sig __unused, siginfo_t *info __unused, ucontext_t *ucp)  in sigcancel_handler()  argument
197 	check_cancel(curthread, ucp);  in sigcancel_handler()
211 	ucontext_t *ucp;  in thr_sighandler()  local
218 	ucp = _ucp;  in thr_sighandler()
236 		curthread->deferred_sigmask = ucp->uc_sigmask;  in thr_sighandler()
238 		ucp->uc_sigmask = _thr_deferset;  in thr_sighandler()
242 	handle_signal(&act, sig, info, ucp);  in thr_sighandler()
246 handle_signal(struct sigaction *actp, int sig, siginfo_t *info, ucontext_t *ucp)  in handle_signal()  argument
257 	SIGSETOR(actp->sa_mask, ucp->uc_sigmask);  in handle_signal()
296 		sigfunc(sig, info, ucp);  in handle_signal()
299 		    (struct sigcontext *)ucp, info->si_addr,  in handle_signal()
308 	SIGDELSET(ucp->uc_sigmask, SIGCANCEL);  in handle_signal()
311 	check_cancel(curthread, ucp);  in handle_signal()
328 check_cancel(struct pthread *curthread, ucontext_t *ucp)  in check_cancel()  argument
357 			if (ucp != NULL) {  in check_cancel()
358 				SIGADDSET(ucp->uc_sigmask, SIGCANCEL);  in check_cancel()
369 		_pthread_exit_mask(PTHREAD_CANCELED, ucp != NULL ?  in check_cancel()
370 		    &ucp->uc_sigmask : NULL);  in check_cancel()
784 __thr_setcontext(const ucontext_t *ucp)  in __thr_setcontext()  argument
788 	if (ucp == NULL) {  in __thr_setcontext()
792 	if (!SIGISMEMBER(ucp->uc_sigmask, SIGCANCEL))  in __thr_setcontext()
793 		return (__sys_setcontext(ucp));  in __thr_setcontext()
794 	(void) memcpy(&uc, ucp, sizeof(uc));  in __thr_setcontext()
800 __thr_swapcontext(ucontext_t *oucp, const ucontext_t *ucp)  in __thr_swapcontext()  argument
804 	if (oucp == NULL || ucp == NULL) {  in __thr_swapcontext()
808 	if (SIGISMEMBER(ucp->uc_sigmask, SIGCANCEL)) {  in __thr_swapcontext()
809 		(void) memcpy(&uc, ucp, sizeof(uc));  in __thr_swapcontext()
811 		ucp = &uc;  in __thr_swapcontext()
813 	return (__sys_swapcontext(oucp, ucp));  in __thr_swapcontext()