36 extern asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs);
79 static_unused int _sys_sigsuspend(struct pt_regs regs)  in _sys_sigsuspend()  argument
83 	uset = (sigset_t *) regs.regs[4];  in _sys_sigsuspend()
94 	regs.regs[2] = EINTR;  in _sys_sigsuspend()
95 	regs.regs[7] = 1;  in _sys_sigsuspend()
99 		if (do_signal(&saveset, &regs))  in _sys_sigsuspend()
105 static_unused int _sys_rt_sigsuspend(struct pt_regs regs)  in _sys_rt_sigsuspend()  argument
111 	sigsetsize = regs.regs[5];  in _sys_rt_sigsuspend()
115 	unewset = (sigset_t *) regs.regs[4];  in _sys_rt_sigsuspend()
126 	regs.regs[2] = EINTR;  in _sys_rt_sigsuspend()
127 	regs.regs[7] = 1;  in _sys_rt_sigsuspend()
131 		if (do_signal(&saveset, &regs))  in _sys_rt_sigsuspend()
175 asmlinkage int sys_sigaltstack(struct pt_regs regs)  in sys_sigaltstack()  argument
177 	const stack_t *uss = (const stack_t *) regs.regs[4];  in sys_sigaltstack()
178 	stack_t *uoss = (stack_t *) regs.regs[5];  in sys_sigaltstack()
179 	unsigned long usp = regs.regs[29];  in sys_sigaltstack()
184 static int restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc)  in restore_sigcontext()  argument
189 	err |= __get_user(regs->cp0_epc, &sc->sc_pc);  in restore_sigcontext()
192 	regs->hi = (int) reg;  in restore_sigcontext()
194 	regs->lo = (int) reg;  in restore_sigcontext()
198 	regs->regs[i] = reg;						\  in restore_sigcontext()
241 asmlinkage void sys_sigreturn(struct pt_regs regs)  in sys_sigreturn()  argument
246 	frame = (struct sigframe *) regs.regs[29];  in sys_sigreturn()
258 	if (restore_sigcontext(&regs, &frame->sf_sc))  in sys_sigreturn()
270 		:"r" (&regs));  in sys_sigreturn()
277 asmlinkage void sys_rt_sigreturn(struct pt_regs regs)  in sys_rt_sigreturn()  argument
283 	frame = (struct rt_sigframe *) regs.regs[29];  in sys_rt_sigreturn()
295 	if (restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext))  in sys_rt_sigreturn()
302 	do_sigaltstack(&st, NULL, regs.regs[29]);  in sys_rt_sigreturn()
311 		:"r" (&regs));  in sys_rt_sigreturn()
318 static int inline setup_sigcontext(struct pt_regs *regs, struct sigcontext *sc)  in setup_sigcontext()  argument
323 	reg = regs->cp0_epc; err |= __put_user(reg, &sc->sc_pc);  in setup_sigcontext()
324 	err |= __put_user(regs->cp0_status, &sc->sc_status);  in setup_sigcontext()
327 	reg = regs->regs[i];						\  in setup_sigcontext()
342 	reg = regs->hi; err |= __put_user(reg, &sc->sc_mdhi);  in setup_sigcontext()
343 	reg = regs->lo; err |= __put_user(reg, &sc->sc_mdlo);  in setup_sigcontext()
344 	err |= __put_user(regs->cp0_cause, &sc->sc_cause);  in setup_sigcontext()
345 	err |= __put_user(regs->cp0_badvaddr, &sc->sc_badvaddr);  in setup_sigcontext()
369 static inline void * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,  in get_sigframe()  argument
375 	sp = regs->regs[29];  in get_sigframe()
391 static void inline setup_frame(struct k_sigaction * ka, struct pt_regs *regs,  in setup_frame()  argument
397 	frame = get_sigframe(ka, regs, sizeof(*frame));  in setup_frame()
411 	err |= setup_sigcontext(regs, &frame->sf_sc);  in setup_frame()
426 	regs->regs[ 4] = signr;  in setup_frame()
427 	regs->regs[ 5] = 0;  in setup_frame()
428 	regs->regs[ 6] = (unsigned long) &frame->sf_sc;  in setup_frame()
429 	regs->regs[29] = (unsigned long) frame;  in setup_frame()
430 	regs->regs[31] = (unsigned long) frame->sf_code;  in setup_frame()
431 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;  in setup_frame()
436 	       frame, regs->cp0_epc, frame->sf_code);  in setup_frame()
446 static void inline setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,  in setup_rt_frame()  argument
452 	frame = get_sigframe(ka, regs, sizeof(*frame));  in setup_rt_frame()
474 	err |= __put_user(sas_ss_flags(regs->regs[29]),  in setup_rt_frame()
478 	err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);  in setup_rt_frame()
494 	regs->regs[ 4] = signr;  in setup_rt_frame()
495 	regs->regs[ 5] = (unsigned long) &frame->rs_info;  in setup_rt_frame()
496 	regs->regs[ 6] = (unsigned long) &frame->rs_uc;  in setup_rt_frame()
497 	regs->regs[29] = (unsigned long) frame;  in setup_rt_frame()
498 	regs->regs[31] = (unsigned long) frame->rs_code;  in setup_rt_frame()
499 	regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;  in setup_rt_frame()
504 	       frame, regs->cp0_epc, frame->rs_code);  in setup_rt_frame()
515 	siginfo_t *info, sigset_t *oldset, struct pt_regs * regs)  in handle_signal()  argument
518 		setup_rt_frame(ka, regs, sig, oldset, info);  in handle_signal()
520 		setup_frame(ka, regs, sig, oldset);  in handle_signal()
533 static inline void syscall_restart(struct pt_regs *regs, struct k_sigaction *ka)  in syscall_restart()  argument
535 	switch(regs->regs[0]) {  in syscall_restart()
537 		regs->regs[2] = EINTR;  in syscall_restart()
541 			regs->regs[2] = EINTR;  in syscall_restart()
546 		regs->regs[7] = regs->regs[26];  in syscall_restart()
547 		regs->cp0_epc -= 8;  in syscall_restart()
550 	regs->regs[0] = 0;		/* Don't deal with this again.  */  in syscall_restart()
553 extern int do_irix_signal(sigset_t *oldset, struct pt_regs *regs);
555 asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs)  in do_signal()  argument
562 		return do_irix_signal(oldset, regs);  in do_signal()
647 				if (do_coredump(signr, regs))  in do_signal()
657 		if (regs->regs[0])  in do_signal()
658 			syscall_restart(regs, ka);  in do_signal()
660 		handle_signal(signr, ka, &info, oldset, regs);  in do_signal()
669 	if (regs->regs[0]) {  in do_signal()
670 		if (regs->regs[2] == ERESTARTNOHAND ||  in do_signal()
671 		    regs->regs[2] == ERESTARTSYS ||  in do_signal()
672 		    regs->regs[2] == ERESTARTNOINTR) {  in do_signal()
673 			regs->regs[7] = regs->regs[26];  in do_signal()
674 			regs->cp0_epc -= 8;  in do_signal()