410 int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)  in setup_sigcontext()  argument
415 	err |= __put_user(regs->cp0_epc, &sc->sc_pc);  in setup_sigcontext()
419 		err |= __put_user(regs->regs[i], &sc->sc_regs[i]);  in setup_sigcontext()
422 	err |= __put_user(regs->acx, &sc->sc_acx);  in setup_sigcontext()
424 	err |= __put_user(regs->hi, &sc->sc_mdhi);  in setup_sigcontext()
425 	err |= __put_user(regs->lo, &sc->sc_mdlo);  in setup_sigcontext()
487 int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)  in restore_sigcontext()  argument
496 	err |= __get_user(regs->cp0_epc, &sc->sc_pc);  in restore_sigcontext()
499 	err |= __get_user(regs->acx, &sc->sc_acx);  in restore_sigcontext()
501 	err |= __get_user(regs->hi, &sc->sc_mdhi);  in restore_sigcontext()
502 	err |= __get_user(regs->lo, &sc->sc_mdlo);  in restore_sigcontext()
514 		err |= __get_user(regs->regs[i], &sc->sc_regs[i]);  in restore_sigcontext()
519 void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,  in get_sigframe()  argument
528 	sp = regs->regs[29];  in get_sigframe()
595 asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)  in sys_sigreturn()  argument
601 	frame = (struct sigframe __user *) regs.regs[29];  in sys_sigreturn()
609 	sig = restore_sigcontext(&regs, &frame->sf_sc);  in sys_sigreturn()
622 		:"r" (&regs));  in sys_sigreturn()
630 asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)  in sys_rt_sigreturn()  argument
636 	frame = (struct rt_sigframe __user *) regs.regs[29];  in sys_rt_sigreturn()
644 	sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);  in sys_rt_sigreturn()
660 		:"r" (&regs));  in sys_rt_sigreturn()
669 		       struct pt_regs *regs, sigset_t *set)  in setup_frame()  argument
674 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_frame()
678 	err |= setup_sigcontext(regs, &frame->sf_sc);  in setup_frame()
693 	regs->regs[ 4] = ksig->sig;  in setup_frame()
694 	regs->regs[ 5] = 0;  in setup_frame()
695 	regs->regs[ 6] = (unsigned long) &frame->sf_sc;  in setup_frame()
696 	regs->regs[29] = (unsigned long) frame;  in setup_frame()
697 	regs->regs[31] = (unsigned long) sig_return;  in setup_frame()
698 	regs->cp0_epc = regs->regs[25] = (unsigned long) ksig->ka.sa.sa_handler;  in setup_frame()
702 	       frame, regs->cp0_epc, regs->regs[31]);  in setup_frame()
708 			  struct pt_regs *regs, sigset_t *set)  in setup_rt_frame()  argument
713 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
723 	err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[29]);  in setup_rt_frame()
724 	err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);  in setup_rt_frame()
740 	regs->regs[ 4] = ksig->sig;  in setup_rt_frame()
741 	regs->regs[ 5] = (unsigned long) &frame->rs_info;  in setup_rt_frame()
742 	regs->regs[ 6] = (unsigned long) &frame->rs_uc;  in setup_rt_frame()
743 	regs->regs[29] = (unsigned long) frame;  in setup_rt_frame()
744 	regs->regs[31] = (unsigned long) sig_return;  in setup_rt_frame()
745 	regs->cp0_epc = regs->regs[25] = (unsigned long) ksig->ka.sa.sa_handler;  in setup_rt_frame()
749 	       frame, regs->cp0_epc, regs->regs[31]);  in setup_rt_frame()
768 static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
775 	if (regs->regs[0]) {  in handle_signal()
776 		switch(regs->regs[2]) {  in handle_signal()
779 			regs->regs[2] = EINTR;  in handle_signal()
783 				regs->regs[2] = EINTR;  in handle_signal()
788 			regs->regs[7] = regs->regs[26];  in handle_signal()
789 			regs->regs[2] = regs->regs[0];  in handle_signal()
790 			regs->cp0_epc -= 4;  in handle_signal()
793 		regs->regs[0] = 0;		/* Don't deal with this again.	*/  in handle_signal()
798 					  ksig, regs, oldset);  in handle_signal()
801 				       ksig, regs, oldset);  in handle_signal()
806 static void do_signal(struct pt_regs *regs)  in do_signal()  argument
812 		handle_signal(&ksig, regs);  in do_signal()
816 	if (regs->regs[0]) {  in do_signal()
817 		switch (regs->regs[2]) {  in do_signal()
821 			regs->regs[2] = regs->regs[0];  in do_signal()
822 			regs->regs[7] = regs->regs[26];  in do_signal()
823 			regs->cp0_epc -= 4;  in do_signal()
827 			regs->regs[2] = current->thread.abi->restart;  in do_signal()
828 			regs->regs[7] = regs->regs[26];  in do_signal()
829 			regs->cp0_epc -= 4;  in do_signal()
832 		regs->regs[0] = 0;	/* Don't deal with this again.	*/  in do_signal()
846 asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused,  in do_notify_resume()  argument
854 		uprobe_notify_resume(regs);  in do_notify_resume()
858 		do_signal(regs);  in do_notify_resume()
862 		tracehook_notify_resume(regs);  in do_notify_resume()