141 	spin_lock_irq(&current->sigmask_lock);  in _sigpause_common()
142 	saveset = current->blocked;  in _sigpause_common()
143 	siginitset(&current->blocked, set);  in _sigpause_common()
144 	recalc_sigpending(current);  in _sigpause_common()
145 	spin_unlock_irq(&current->sigmask_lock);  in _sigpause_common()
155 		current->state = TASK_INTERRUPTIBLE;  in _sigpause_common()
198 	spin_lock_irq(&current->sigmask_lock);  in do_rt_sigsuspend()
199 	oldset = current->blocked;  in do_rt_sigsuspend()
200 	current->blocked = set;  in do_rt_sigsuspend()
201 	recalc_sigpending(current);  in do_rt_sigsuspend()
202 	spin_unlock_irq(&current->sigmask_lock);  in do_rt_sigsuspend()
212 		current->state = TASK_INTERRUPTIBLE;  in do_rt_sigsuspend()
231 	if (current->flags & PF_USEDFPU)  in restore_fpu_state()
234 	if (current == last_task_used_math) {  in restore_fpu_state()
239 	current->used_math = 1;  in restore_fpu_state()
240 	current->flags &= ~PF_USEDFPU;  in restore_fpu_state()
245 	err = __copy_from_user(&current->thread.float_regs[0], &fpu->si_float_regs[0],  in restore_fpu_state()
247 	err |= __get_user(current->thread.fsr, &fpu->si_fsr);  in restore_fpu_state()
248 	err |= __get_user(current->thread.fpqdepth, &fpu->si_fpqdepth);  in restore_fpu_state()
249 	if (current->thread.fpqdepth != 0)  in restore_fpu_state()
250 		err |= __copy_from_user(&current->thread.fpqueue[0],  in restore_fpu_state()
304 	spin_lock_irq(&current->sigmask_lock);  in do_new_sigreturn()
305 	current->blocked = set;  in do_new_sigreturn()
306 	recalc_sigpending(current);  in do_new_sigreturn()
307 	spin_unlock_irq(&current->sigmask_lock);  in do_new_sigreturn()
323 	if (current->thread.new_signal)  in do_sigreturn()
351 	spin_lock_irq(&current->sigmask_lock);  in do_sigreturn()
352 	current->blocked = set;  in do_sigreturn()
353 	recalc_sigpending(current);  in do_sigreturn()
354 	spin_unlock_irq(&current->sigmask_lock);  in do_sigreturn()
373 	send_sig(SIGSEGV, current, 1);  in do_sigreturn()
421 	spin_lock_irq(&current->sigmask_lock);  in do_rt_sigreturn()
422 	current->blocked = set;  in do_rt_sigreturn()
423 	recalc_sigpending(current);  in do_rt_sigreturn()
424 	spin_unlock_irq(&current->sigmask_lock);  in do_rt_sigreturn()
427 	send_sig(SIGSEGV, current, 1);  in do_rt_sigreturn()
450 		if (!on_sig_stack(sp) && !((current->sas_ss_sp + current->sas_ss_size) & 7))  in get_sigframe()
451 			sp = current->sas_ss_sp + current->sas_ss_size;  in get_sigframe()
472 		       current->comm, current->pid);  in setup_frame()
496 	err |= __put_user(current->thread.w_saved, &sc->sigc_oswins);  in setup_frame()
497 	if(current->thread.w_saved)  in setup_frame()
498 		for(window = 0; window < current->thread.w_saved; window++) {  in setup_frame()
500 				(char *)current->thread.rwbuf_stkptrs[window];  in setup_frame()
502 					      &current->thread.reg_window[window],  in setup_frame()
509 	current->thread.w_saved = 0; /* So process is allowed to execute. */  in setup_frame()
588 	if (current->flags & PF_USEDFPU) {  in save_fpu_state()
590 		fpsave(&current->thread.float_regs[0], &current->thread.fsr,  in save_fpu_state()
591 		       &current->thread.fpqueue[0], &current->thread.fpqdepth);  in save_fpu_state()
593 		current->flags &= ~(PF_USEDFPU);  in save_fpu_state()
596 	if (current == last_task_used_math) {  in save_fpu_state()
598 		fpsave(&current->thread.float_regs[0], &current->thread.fsr,  in save_fpu_state()
599 		       &current->thread.fpqueue[0], &current->thread.fpqdepth);  in save_fpu_state()
604 	err |= __copy_to_user(&fpu->si_float_regs[0], &current->thread.float_regs[0],  in save_fpu_state()
606 	err |= __put_user(current->thread.fsr, &fpu->si_fsr);  in save_fpu_state()
607 	err |= __put_user(current->thread.fpqdepth, &fpu->si_fpqdepth);  in save_fpu_state()
608 	if (current->thread.fpqdepth != 0)  in save_fpu_state()
609 		err |= __copy_to_user(&fpu->si_fpqueue[0], &current->thread.fpqueue[0],  in save_fpu_state()
612 	current->used_math = 0;  in save_fpu_state()
627 	if (!current->used_math)  in new_setup_frame()
635 	if (current->thread.w_saved != 0) {  in new_setup_frame()
638 			"signal delivery.\n", current->comm, current->pid);  in new_setup_frame()
648 	if (current->used_math) {  in new_setup_frame()
688 		flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));  in new_setup_frame()
709 	if(!current->used_math)  in new_setup_rt_frame()
714 	if(current->thread.w_saved != 0)  in new_setup_rt_frame()
721 	if(current->used_math)  in new_setup_rt_frame()
736 	err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp);  in new_setup_rt_frame()
738 	err |= __put_user(current->sas_ss_size, &sf->stack.ss_size);  in new_setup_rt_frame()
770 		flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));  in new_setup_rt_frame()
838 	err |= __put_user(current->sas_ss_sp, &uc->stack.sp);  in setup_svr4_frame()
840 	err |= __put_user(current->sas_ss_size, &uc->stack.size);  in setup_svr4_frame()
848 	err |= __put_user(current->thread.w_saved, &gw->count);  in setup_svr4_frame()
861 	for(window = 0; window < current->thread.w_saved; window++) {  in setup_svr4_frame()
864 				      &current->thread.reg_window [window],  in setup_svr4_frame()
870 	current->thread.w_saved = 0; /* So process is allowed to execute. */  in setup_svr4_frame()
920 	if (current->thread.w_saved)  in svr4_getcontext()
931 	setv.sigbits[0] = current->blocked.sig[0];  in svr4_getcontext()
932 	setv.sigbits[1] = current->blocked.sig[1];  in svr4_getcontext()
934 		setv.sigbits[2] = current->blocked.sig[2];  in svr4_getcontext()
935 		setv.sigbits[3] = current->blocked.sig[3];  in svr4_getcontext()
951 	err |= __put_user(current->sas_ss_sp, &uc->stack.sp);  in svr4_getcontext()
953 	err |= __put_user(current->sas_ss_size, &uc->stack.size);  in svr4_getcontext()
967 	struct thread_struct *tp = &current->thread;  in svr4_setcontext()
1024 	spin_lock_irq(&current->sigmask_lock);  in svr4_setcontext()
1025 	current->blocked = set;  in svr4_setcontext()
1026 	recalc_sigpending(current);  in svr4_setcontext()
1027 	spin_unlock_irq(&current->sigmask_lock);  in svr4_setcontext()
1056 		else if (current->thread.new_signal)  in handle_signal()
1064 		spin_lock_irq(&current->sigmask_lock);  in handle_signal()
1065 		sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);  in handle_signal()
1066 		sigaddset(&current->blocked, signr);  in handle_signal()
1067 		recalc_sigpending(current);  in handle_signal()
1068 		spin_unlock_irq(&current->sigmask_lock);  in handle_signal()
1106 	for (map = current->mm->mmap ; map ; map = next ) {  in read_maps()
1168 	int svr4_signal = current->personality == PER_SVR4;  in do_signal()
1172 		oldset = &current->blocked;  in do_signal()
1175 		spin_lock_irq(&current->sigmask_lock);  in do_signal()
1176 		signr = dequeue_signal(&current->blocked, &info);  in do_signal()
1177 		spin_unlock_irq(&current->sigmask_lock);  in do_signal()
1182 		if ((current->ptrace & PT_PTRACED) && signr != SIGKILL) {  in do_signal()
1195 			current->exit_code = signr;  in do_signal()
1196 			current->state = TASK_STOPPED;  in do_signal()
1201 			notify_parent(current, SIGCHLD);  in do_signal()
1203 			if (!(signr = current->exit_code))  in do_signal()
1205 			current->exit_code = 0;  in do_signal()
1214 				info.si_pid = current->p_pptr->pid;  in do_signal()
1215 				info.si_uid = current->p_pptr->uid;  in do_signal()
1219 			if (sigismember(&current->blocked, signr)) {  in do_signal()
1220 				send_sig_info(signr, &info, current);  in do_signal()
1225 		ka = &current->sig->action[signr-1];  in do_signal()
1243 			if (current->pid == 1)  in do_signal()
1254 				if (is_orphaned_pgrp(current->pgrp))  in do_signal()
1258 				if (current->ptrace & PT_PTRACED)  in do_signal()
1260 				current->state = TASK_STOPPED;  in do_signal()
1261 				current->exit_code = signr;  in do_signal()
1264 				if (!(current->p_pptr->sig->action[SIGCHLD-1].sa.sa_flags &  in do_signal()
1266 					notify_parent(current, SIGCHLD);  in do_signal()
1277 				printk ("Sig %ld going for %s[%d]...\n", signr, current->comm, current->pid);  in do_signal()
1299 				sigaddset(&current->pending.signal, signr);  in do_signal()
1300 				recalc_sigpending(current);  in do_signal()
1301 				current->flags |= PF_SIGNALED;  in do_signal()
1330 		if (put_user(current->sas_ss_sp + current->sas_ss_size, &ossptr->the_stack) ||  in do_sys_sigstack()
1344 		if (current->sas_ss_sp && on_sig_stack(sp))  in do_sys_sigstack()
1350 		current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;  in do_sys_sigstack()
1351 		current->sas_ss_size = SIGSTKSZ;  in do_sys_sigstack()