66 stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,  in stash_usr_regs()  argument
70 	err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), regs,  in stash_usr_regs()
71 			     sizeof(sf->uc.uc_mcontext.regs.scratch));  in stash_usr_regs()
77 static int restore_usr_regs(struct pt_regs *regs, struct rt_sigframe __user *sf)  in restore_usr_regs()  argument
86 	err |= __copy_from_user(regs, &(sf->uc.uc_mcontext.regs.scratch),  in restore_usr_regs()
87 				sizeof(sf->uc.uc_mcontext.regs.scratch));  in restore_usr_regs()
104 	struct pt_regs *regs = current_pt_regs();  in SYSCALL_DEFINE0()  local
113 	if (regs->sp & 3)  in SYSCALL_DEFINE0()
116 	sf = (struct rt_sigframe __force __user *)(regs->sp);  in SYSCALL_DEFINE0()
128 	if (restore_usr_regs(regs, sf))  in SYSCALL_DEFINE0()
132 	syscall_wont_restart(regs);  in SYSCALL_DEFINE0()
141 	regs->status32 |= STATUS_U_MASK;  in SYSCALL_DEFINE0()
143 	return regs->r0;  in SYSCALL_DEFINE0()
154 					struct pt_regs *regs,  in get_sigframe()  argument
157 	unsigned long sp = sigsp(regs->sp, ksig);  in get_sigframe()
175 setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)  in setup_rt_frame()  argument
181 	sf = get_sigframe(ksig, regs, sizeof(struct rt_sigframe));  in setup_rt_frame()
192 	err |= stash_usr_regs(sf, regs, set);  in setup_rt_frame()
204 		err |= __save_altstack(&sf->uc.uc_stack, regs->sp);  in setup_rt_frame()
207 		regs->r1 = (unsigned long)&sf->info;  in setup_rt_frame()
208 		regs->r2 = (unsigned long)&sf->uc;  in setup_rt_frame()
222 	regs->r0 = ksig->sig;  in setup_rt_frame()
225 	regs->ret = (unsigned long)ksig->ka.sa.sa_handler;  in setup_rt_frame()
234 	regs->blink = (unsigned long)ksig->ka.sa.sa_restorer;  in setup_rt_frame()
237 	regs->sp = (unsigned long)sf;  in setup_rt_frame()
243 	regs->status32 &= ~STATUS_DE_MASK;  in setup_rt_frame()
244 	regs->status32 |= STATUS_L_MASK;  in setup_rt_frame()
249 static void arc_restart_syscall(struct k_sigaction *ka, struct pt_regs *regs)  in arc_restart_syscall()  argument
251 	switch (regs->r0) {  in arc_restart_syscall()
260 		regs->r0 = -EINTR;   /* ERESTART_xxx is internal */  in arc_restart_syscall()
270 			regs->r0 = -EINTR;  in arc_restart_syscall()
286 		regs->r0 = regs->orig_r0;  in arc_restart_syscall()
287 		regs->ret -= 4;  in arc_restart_syscall()
296 handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
302 	failed = setup_rt_frame(ksig, oldset, regs);  in handle_signal()
307 void do_signal(struct pt_regs *regs)  in do_signal()  argument
312 	restart_scall = in_syscall(regs) && syscall_restartable(regs);  in do_signal()
316 			arc_restart_syscall(&ksig.ka, regs);  in do_signal()
317 			syscall_wont_restart(regs);	/* No more restarts */  in do_signal()
319 		handle_signal(&ksig, regs);  in do_signal()
325 		if (regs->r0 == -ERESTARTNOHAND ||  in do_signal()
326 		    regs->r0 == -ERESTARTSYS || regs->r0 == -ERESTARTNOINTR) {  in do_signal()
327 			regs->r0 = regs->orig_r0;  in do_signal()
328 			regs->ret -= 4;  in do_signal()
329 		} else if (regs->r0 == -ERESTART_RESTARTBLOCK) {  in do_signal()
330 			regs->r8 = __NR_restart_syscall;  in do_signal()
331 			regs->ret -= 4;  in do_signal()
333 		syscall_wont_restart(regs);	/* No more restarts */  in do_signal()
340 void do_notify_resume(struct pt_regs *regs)  in do_notify_resume()  argument
347 		tracehook_notify_resume(regs);  in do_notify_resume()