92 	struct signal_frame __user *frame;  in sys_sigreturn()  local
96 	frame = (struct signal_frame *) rdusp();  in sys_sigreturn()
103 	if (((long)frame) & 3)  in sys_sigreturn()
106 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))  in sys_sigreturn()
109 	if (__get_user(set.sig[0], &frame->sc.oldmask) ||  in sys_sigreturn()
111 						 frame->extramask,  in sys_sigreturn()
112 						 sizeof(frame->extramask))))  in sys_sigreturn()
117 	if (restore_sigcontext(regs, &frame->sc))  in sys_sigreturn()
133 	struct rt_signal_frame __user *frame;  in sys_rt_sigreturn()  local
137 	frame = (struct rt_signal_frame *) rdusp();  in sys_rt_sigreturn()
144 	if (((long)frame) & 3)  in sys_rt_sigreturn()
147 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))  in sys_rt_sigreturn()
150 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in sys_rt_sigreturn()
155 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in sys_rt_sigreturn()
158 	if (restore_altstack(&frame->uc.uc_stack))  in sys_rt_sigreturn()
217 	struct signal_frame __user *frame;  in setup_frame()  local
220 	frame = get_sigframe(ksig, sizeof(*frame));  in setup_frame()
222 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))  in setup_frame()
225 	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);  in setup_frame()
231 		err |= __copy_to_user(frame->extramask, &set->sig[1],  in setup_frame()
232 				      sizeof(frame->extramask));  in setup_frame()
255 		err |= __put_user(0x9c5f,         (short __user*)(frame->retcode+0));  in setup_frame()
256 		err |= __put_user(__NR_sigreturn, (short __user*)(frame->retcode+2));  in setup_frame()
257 		err |= __put_user(0xe93d,         (short __user*)(frame->retcode+4));  in setup_frame()
275 	wrusp((unsigned long)frame);  in setup_frame()
285 	struct rt_signal_frame __user *frame;  in setup_rt_frame()  local
288 	frame = get_sigframe(ksig, sizeof(*frame));  in setup_rt_frame()
290 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))  in setup_rt_frame()
293 	err |= __put_user(&frame->info, &frame->pinfo);  in setup_rt_frame()
294 	err |= __put_user(&frame->uc, &frame->puc);  in setup_rt_frame()
295 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);  in setup_rt_frame()
301 	err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));  in setup_rt_frame()
302 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);  in setup_rt_frame()
303 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in setup_rt_frame()
304 	err |= __save_altstack(&frame->uc.uc_stack, rdusp());  in setup_rt_frame()
326 		err |= __put_user(0x9c5f, (short __user*)(frame->retcode+0));  in setup_rt_frame()
329 				  (short __user*)(frame->retcode+2));  in setup_rt_frame()
331 		err |= __put_user(0xe93d, (short __user*)(frame->retcode+4));  in setup_rt_frame()
349 	regs->r11 = (unsigned long) &frame->info;  in setup_rt_frame()
353 	wrusp((unsigned long)frame);  in setup_rt_frame()