52 static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)  in restore_sigframe()  argument
61 	err |= __get_user(regs->UCreg_00, &sf->uc.uc_mcontext.regs.UCreg_00);  in restore_sigframe()
62 	err |= __get_user(regs->UCreg_01, &sf->uc.uc_mcontext.regs.UCreg_01);  in restore_sigframe()
63 	err |= __get_user(regs->UCreg_02, &sf->uc.uc_mcontext.regs.UCreg_02);  in restore_sigframe()
64 	err |= __get_user(regs->UCreg_03, &sf->uc.uc_mcontext.regs.UCreg_03);  in restore_sigframe()
65 	err |= __get_user(regs->UCreg_04, &sf->uc.uc_mcontext.regs.UCreg_04);  in restore_sigframe()
66 	err |= __get_user(regs->UCreg_05, &sf->uc.uc_mcontext.regs.UCreg_05);  in restore_sigframe()
67 	err |= __get_user(regs->UCreg_06, &sf->uc.uc_mcontext.regs.UCreg_06);  in restore_sigframe()
68 	err |= __get_user(regs->UCreg_07, &sf->uc.uc_mcontext.regs.UCreg_07);  in restore_sigframe()
69 	err |= __get_user(regs->UCreg_08, &sf->uc.uc_mcontext.regs.UCreg_08);  in restore_sigframe()
70 	err |= __get_user(regs->UCreg_09, &sf->uc.uc_mcontext.regs.UCreg_09);  in restore_sigframe()
71 	err |= __get_user(regs->UCreg_10, &sf->uc.uc_mcontext.regs.UCreg_10);  in restore_sigframe()
72 	err |= __get_user(regs->UCreg_11, &sf->uc.uc_mcontext.regs.UCreg_11);  in restore_sigframe()
73 	err |= __get_user(regs->UCreg_12, &sf->uc.uc_mcontext.regs.UCreg_12);  in restore_sigframe()
74 	err |= __get_user(regs->UCreg_13, &sf->uc.uc_mcontext.regs.UCreg_13);  in restore_sigframe()
75 	err |= __get_user(regs->UCreg_14, &sf->uc.uc_mcontext.regs.UCreg_14);  in restore_sigframe()
76 	err |= __get_user(regs->UCreg_15, &sf->uc.uc_mcontext.regs.UCreg_15);  in restore_sigframe()
77 	err |= __get_user(regs->UCreg_16, &sf->uc.uc_mcontext.regs.UCreg_16);  in restore_sigframe()
78 	err |= __get_user(regs->UCreg_17, &sf->uc.uc_mcontext.regs.UCreg_17);  in restore_sigframe()
79 	err |= __get_user(regs->UCreg_18, &sf->uc.uc_mcontext.regs.UCreg_18);  in restore_sigframe()
80 	err |= __get_user(regs->UCreg_19, &sf->uc.uc_mcontext.regs.UCreg_19);  in restore_sigframe()
81 	err |= __get_user(regs->UCreg_20, &sf->uc.uc_mcontext.regs.UCreg_20);  in restore_sigframe()
82 	err |= __get_user(regs->UCreg_21, &sf->uc.uc_mcontext.regs.UCreg_21);  in restore_sigframe()
83 	err |= __get_user(regs->UCreg_22, &sf->uc.uc_mcontext.regs.UCreg_22);  in restore_sigframe()
84 	err |= __get_user(regs->UCreg_23, &sf->uc.uc_mcontext.regs.UCreg_23);  in restore_sigframe()
85 	err |= __get_user(regs->UCreg_24, &sf->uc.uc_mcontext.regs.UCreg_24);  in restore_sigframe()
86 	err |= __get_user(regs->UCreg_25, &sf->uc.uc_mcontext.regs.UCreg_25);  in restore_sigframe()
87 	err |= __get_user(regs->UCreg_26, &sf->uc.uc_mcontext.regs.UCreg_26);  in restore_sigframe()
88 	err |= __get_user(regs->UCreg_fp, &sf->uc.uc_mcontext.regs.UCreg_fp);  in restore_sigframe()
89 	err |= __get_user(regs->UCreg_ip, &sf->uc.uc_mcontext.regs.UCreg_ip);  in restore_sigframe()
90 	err |= __get_user(regs->UCreg_sp, &sf->uc.uc_mcontext.regs.UCreg_sp);  in restore_sigframe()
91 	err |= __get_user(regs->UCreg_lr, &sf->uc.uc_mcontext.regs.UCreg_lr);  in restore_sigframe()
92 	err |= __get_user(regs->UCreg_pc, &sf->uc.uc_mcontext.regs.UCreg_pc);  in restore_sigframe()
93 	err |= __get_user(regs->UCreg_asr, &sf->uc.uc_mcontext.regs.UCreg_asr);  in restore_sigframe()
95 	err |= !valid_user_regs(regs);  in restore_sigframe()
100 asmlinkage int __sys_rt_sigreturn(struct pt_regs *regs)  in __sys_rt_sigreturn()  argument
112 	if (regs->UCreg_sp & 7)  in __sys_rt_sigreturn()
115 	frame = (struct rt_sigframe __user *)regs->UCreg_sp;  in __sys_rt_sigreturn()
120 	if (restore_sigframe(regs, &frame->sig))  in __sys_rt_sigreturn()
126 	return regs->UCreg_00;  in __sys_rt_sigreturn()
133 static int setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs,  in setup_sigframe()  argument
138 	err |= __put_user(regs->UCreg_00, &sf->uc.uc_mcontext.regs.UCreg_00);  in setup_sigframe()
139 	err |= __put_user(regs->UCreg_01, &sf->uc.uc_mcontext.regs.UCreg_01);  in setup_sigframe()
140 	err |= __put_user(regs->UCreg_02, &sf->uc.uc_mcontext.regs.UCreg_02);  in setup_sigframe()
141 	err |= __put_user(regs->UCreg_03, &sf->uc.uc_mcontext.regs.UCreg_03);  in setup_sigframe()
142 	err |= __put_user(regs->UCreg_04, &sf->uc.uc_mcontext.regs.UCreg_04);  in setup_sigframe()
143 	err |= __put_user(regs->UCreg_05, &sf->uc.uc_mcontext.regs.UCreg_05);  in setup_sigframe()
144 	err |= __put_user(regs->UCreg_06, &sf->uc.uc_mcontext.regs.UCreg_06);  in setup_sigframe()
145 	err |= __put_user(regs->UCreg_07, &sf->uc.uc_mcontext.regs.UCreg_07);  in setup_sigframe()
146 	err |= __put_user(regs->UCreg_08, &sf->uc.uc_mcontext.regs.UCreg_08);  in setup_sigframe()
147 	err |= __put_user(regs->UCreg_09, &sf->uc.uc_mcontext.regs.UCreg_09);  in setup_sigframe()
148 	err |= __put_user(regs->UCreg_10, &sf->uc.uc_mcontext.regs.UCreg_10);  in setup_sigframe()
149 	err |= __put_user(regs->UCreg_11, &sf->uc.uc_mcontext.regs.UCreg_11);  in setup_sigframe()
150 	err |= __put_user(regs->UCreg_12, &sf->uc.uc_mcontext.regs.UCreg_12);  in setup_sigframe()
151 	err |= __put_user(regs->UCreg_13, &sf->uc.uc_mcontext.regs.UCreg_13);  in setup_sigframe()
152 	err |= __put_user(regs->UCreg_14, &sf->uc.uc_mcontext.regs.UCreg_14);  in setup_sigframe()
153 	err |= __put_user(regs->UCreg_15, &sf->uc.uc_mcontext.regs.UCreg_15);  in setup_sigframe()
154 	err |= __put_user(regs->UCreg_16, &sf->uc.uc_mcontext.regs.UCreg_16);  in setup_sigframe()
155 	err |= __put_user(regs->UCreg_17, &sf->uc.uc_mcontext.regs.UCreg_17);  in setup_sigframe()
156 	err |= __put_user(regs->UCreg_18, &sf->uc.uc_mcontext.regs.UCreg_18);  in setup_sigframe()
157 	err |= __put_user(regs->UCreg_19, &sf->uc.uc_mcontext.regs.UCreg_19);  in setup_sigframe()
158 	err |= __put_user(regs->UCreg_20, &sf->uc.uc_mcontext.regs.UCreg_20);  in setup_sigframe()
159 	err |= __put_user(regs->UCreg_21, &sf->uc.uc_mcontext.regs.UCreg_21);  in setup_sigframe()
160 	err |= __put_user(regs->UCreg_22, &sf->uc.uc_mcontext.regs.UCreg_22);  in setup_sigframe()
161 	err |= __put_user(regs->UCreg_23, &sf->uc.uc_mcontext.regs.UCreg_23);  in setup_sigframe()
162 	err |= __put_user(regs->UCreg_24, &sf->uc.uc_mcontext.regs.UCreg_24);  in setup_sigframe()
163 	err |= __put_user(regs->UCreg_25, &sf->uc.uc_mcontext.regs.UCreg_25);  in setup_sigframe()
164 	err |= __put_user(regs->UCreg_26, &sf->uc.uc_mcontext.regs.UCreg_26);  in setup_sigframe()
165 	err |= __put_user(regs->UCreg_fp, &sf->uc.uc_mcontext.regs.UCreg_fp);  in setup_sigframe()
166 	err |= __put_user(regs->UCreg_ip, &sf->uc.uc_mcontext.regs.UCreg_ip);  in setup_sigframe()
167 	err |= __put_user(regs->UCreg_sp, &sf->uc.uc_mcontext.regs.UCreg_sp);  in setup_sigframe()
168 	err |= __put_user(regs->UCreg_lr, &sf->uc.uc_mcontext.regs.UCreg_lr);  in setup_sigframe()
169 	err |= __put_user(regs->UCreg_pc, &sf->uc.uc_mcontext.regs.UCreg_pc);  in setup_sigframe()
170 	err |= __put_user(regs->UCreg_asr, &sf->uc.uc_mcontext.regs.UCreg_asr);  in setup_sigframe()
186 		struct pt_regs *regs, int framesize)  in get_sigframe()  argument
188 	unsigned long sp = regs->UCreg_sp;  in get_sigframe()
211 static int setup_return(struct pt_regs *regs, struct k_sigaction *ka,  in setup_return()  argument
216 	unsigned long asr = regs->UCreg_asr & ~PSR_f;  in setup_return()
229 	regs->UCreg_00 = usig;  in setup_return()
230 	regs->UCreg_sp = (unsigned long)frame;  in setup_return()
231 	regs->UCreg_lr = retcode;  in setup_return()
232 	regs->UCreg_pc = handler;  in setup_return()
233 	regs->UCreg_asr = asr;  in setup_return()
239 		       struct pt_regs *regs)  in setup_frame()  argument
241 	struct sigframe __user *frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));  in setup_frame()
252 	err |= setup_sigframe(frame, regs, set);  in setup_frame()
254 		err |= setup_return(regs, &ksig->ka, frame->retcode, frame,  in setup_frame()
261 			  struct pt_regs *regs)  in setup_rt_frame()  argument
264 			get_sigframe(&ksig->ka, regs, sizeof(*frame));  in setup_rt_frame()
274 	err |= __save_altstack(&frame->sig.uc.uc_stack, regs->UCreg_sp);  in setup_rt_frame()
275 	err |= setup_sigframe(&frame->sig, regs, set);  in setup_rt_frame()
277 		err |= setup_return(regs, &ksig->ka, frame->sig.retcode, frame,  in setup_rt_frame()
285 		regs->UCreg_01 = (unsigned long)&frame->info;  in setup_rt_frame()
286 		regs->UCreg_02 = (unsigned long)&frame->sig.uc;  in setup_rt_frame()
292 static inline void setup_syscall_restart(struct pt_regs *regs)  in setup_syscall_restart()  argument
294 	regs->UCreg_00 = regs->UCreg_ORIG_00;  in setup_syscall_restart()
295 	regs->UCreg_pc -= 4;  in setup_syscall_restart()
301 static void handle_signal(struct ksignal *ksig, struct pt_regs *regs,  in handle_signal()  argument
313 		switch (regs->UCreg_00) {  in handle_signal()
316 			regs->UCreg_00 = -EINTR;  in handle_signal()
320 				regs->UCreg_00 = -EINTR;  in handle_signal()
325 			setup_syscall_restart(regs);  in handle_signal()
333 		ret = setup_rt_frame(ksig, oldset, regs);  in handle_signal()
335 		ret = setup_frame(ksig, oldset, regs);  in handle_signal()
340 	ret |= !valid_user_regs(regs);  in handle_signal()
354 static void do_signal(struct pt_regs *regs, int syscall)  in do_signal()  argument
364 	if (!user_mode(regs))  in do_signal()
368 		handle_signal(&ksig, regs, syscall);  in do_signal()
376 		if (regs->UCreg_00 == -ERESTART_RESTARTBLOCK) {  in do_signal()
379 				regs->UCreg_sp -= 4;  in do_signal()
380 				usp = (u32 __user *)regs->UCreg_sp;  in do_signal()
382 				if (put_user(regs->UCreg_pc, usp) == 0) {  in do_signal()
383 					regs->UCreg_pc = KERN_RESTART_CODE;  in do_signal()
385 					regs->UCreg_sp += 4;  in do_signal()
389 		if (regs->UCreg_00 == -ERESTARTNOHAND ||  in do_signal()
390 		    regs->UCreg_00 == -ERESTARTSYS ||  in do_signal()
391 		    regs->UCreg_00 == -ERESTARTNOINTR) {  in do_signal()
392 			setup_syscall_restart(regs);  in do_signal()
401 asmlinkage void do_notify_resume(struct pt_regs *regs,  in do_notify_resume()  argument
405 		do_signal(regs, syscall);  in do_notify_resume()
409 		tracehook_notify_resume(regs);  in do_notify_resume()