37 static inline int rt_restore_ucontext(struct pt_regs *regs,  in rt_restore_ucontext()  argument
52 	err |= __get_user(regs->r1, &gregs[0]);  in rt_restore_ucontext()
53 	err |= __get_user(regs->r2, &gregs[1]);  in rt_restore_ucontext()
54 	err |= __get_user(regs->r3, &gregs[2]);  in rt_restore_ucontext()
55 	err |= __get_user(regs->r4, &gregs[3]);  in rt_restore_ucontext()
56 	err |= __get_user(regs->r5, &gregs[4]);  in rt_restore_ucontext()
57 	err |= __get_user(regs->r6, &gregs[5]);  in rt_restore_ucontext()
58 	err |= __get_user(regs->r7, &gregs[6]);  in rt_restore_ucontext()
59 	err |= __get_user(regs->r8, &gregs[7]);  in rt_restore_ucontext()
60 	err |= __get_user(regs->r9, &gregs[8]);  in rt_restore_ucontext()
61 	err |= __get_user(regs->r10, &gregs[9]);  in rt_restore_ucontext()
62 	err |= __get_user(regs->r11, &gregs[10]);  in rt_restore_ucontext()
63 	err |= __get_user(regs->r12, &gregs[11]);  in rt_restore_ucontext()
64 	err |= __get_user(regs->r13, &gregs[12]);  in rt_restore_ucontext()
65 	err |= __get_user(regs->r14, &gregs[13]);  in rt_restore_ucontext()
66 	err |= __get_user(regs->r15, &gregs[14]);  in rt_restore_ucontext()
83 	err |= __get_user(regs->ea, &gregs[27]);  in rt_restore_ucontext()
85 	err |= __get_user(regs->ra, &gregs[23]);  in rt_restore_ucontext()
86 	err |= __get_user(regs->sp, &gregs[28]);  in rt_restore_ucontext()
88 	regs->orig_r2 = -1;		/* disable syscall checks */  in rt_restore_ucontext()
94 	*pr2 = regs->r2;  in rt_restore_ucontext()
103 	struct pt_regs *regs = (struct pt_regs *)(sw + 1);  in do_rt_sigreturn()  local
105 	struct rt_sigframe *frame = (struct rt_sigframe *) regs->sp;  in do_rt_sigreturn()
117 	if (rt_restore_ucontext(regs, sw, &frame->uc, &rval))  in do_rt_sigreturn()
127 static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs)  in rt_setup_ucontext()  argument
129 	struct switch_stack *sw = (struct switch_stack *)regs - 1;  in rt_setup_ucontext()
134 	err |= __put_user(regs->r1, &gregs[0]);  in rt_setup_ucontext()
135 	err |= __put_user(regs->r2, &gregs[1]);  in rt_setup_ucontext()
136 	err |= __put_user(regs->r3, &gregs[2]);  in rt_setup_ucontext()
137 	err |= __put_user(regs->r4, &gregs[3]);  in rt_setup_ucontext()
138 	err |= __put_user(regs->r5, &gregs[4]);  in rt_setup_ucontext()
139 	err |= __put_user(regs->r6, &gregs[5]);  in rt_setup_ucontext()
140 	err |= __put_user(regs->r7, &gregs[6]);  in rt_setup_ucontext()
141 	err |= __put_user(regs->r8, &gregs[7]);  in rt_setup_ucontext()
142 	err |= __put_user(regs->r9, &gregs[8]);  in rt_setup_ucontext()
143 	err |= __put_user(regs->r10, &gregs[9]);  in rt_setup_ucontext()
144 	err |= __put_user(regs->r11, &gregs[10]);  in rt_setup_ucontext()
145 	err |= __put_user(regs->r12, &gregs[11]);  in rt_setup_ucontext()
146 	err |= __put_user(regs->r13, &gregs[12]);  in rt_setup_ucontext()
147 	err |= __put_user(regs->r14, &gregs[13]);  in rt_setup_ucontext()
148 	err |= __put_user(regs->r15, &gregs[14]);  in rt_setup_ucontext()
157 	err |= __put_user(regs->ra, &gregs[23]);  in rt_setup_ucontext()
160 	err |= __put_user(regs->ea, &gregs[27]);  in rt_setup_ucontext()
161 	err |= __put_user(regs->sp, &gregs[28]);  in rt_setup_ucontext()
165 static inline void *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,  in get_sigframe()  argument
171 	usp = regs->sp;  in get_sigframe()
181 			  struct pt_regs *regs)  in setup_rt_frame()  argument
186 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
194 	err |= __save_altstack(&frame->uc.uc_stack, regs->sp);  in setup_rt_frame()
195 	err |= rt_setup_ucontext(&frame->uc, regs);  in setup_rt_frame()
203 	regs->ra = (unsigned long) (0x1044);  in setup_rt_frame()
206 	regs->sp = (unsigned long) frame;  in setup_rt_frame()
207 	regs->r4 = (unsigned long) ksig->sig;  in setup_rt_frame()
208 	regs->r5 = (unsigned long) &frame->info;  in setup_rt_frame()
209 	regs->r6 = (unsigned long) &frame->uc;  in setup_rt_frame()
210 	regs->ea = (unsigned long) ksig->ka.sa.sa_handler;  in setup_rt_frame()
221 static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
227 	ret = setup_rt_frame(ksig, oldset, regs);  in handle_signal()
232 static int do_signal(struct pt_regs *regs)  in do_signal()  argument
238 	current->thread.kregs = regs;  in do_signal()
243 	if (regs->orig_r2 >= 0) {  in do_signal()
244 		continue_addr = regs->ea;  in do_signal()
246 		retval = regs->r2;  in do_signal()
260 			regs->r2 = regs->orig_r2;  in do_signal()
261 			regs->r7 = regs->orig_r7;  in do_signal()
262 			regs->ea = restart_addr;  in do_signal()
269 		if (unlikely(restart && regs->ea == restart_addr)) {  in do_signal()
274 				regs->r2 = EINTR;  in do_signal()
275 				regs->r7 = 1;  in do_signal()
276 				regs->ea = continue_addr;  in do_signal()
279 		handle_signal(&ksig, regs);  in do_signal()
286 	if (unlikely(restart) && regs->ea == restart_addr) {  in do_signal()
287 		regs->ea = continue_addr;  in do_signal()
288 		regs->r2 = __NR_restart_syscall;  in do_signal()
299 asmlinkage int do_notify_resume(struct pt_regs *regs)  in do_notify_resume()  argument
306 	if (!user_mode(regs))  in do_notify_resume()
310 		int restart = do_signal(regs);  in do_notify_resume()
321 		tracehook_notify_resume(regs);  in do_notify_resume()