91 	struct signal_frame __user *frame;  in sys_sigreturn()  local
95 	frame = (struct signal_frame *) rdusp();  in sys_sigreturn()
102 	if (((long)frame) & 3)  in sys_sigreturn()
105 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))  in sys_sigreturn()
108 	if (__get_user(set.sig[0], &frame->sc.oldmask) ||  in sys_sigreturn()
110 						 frame->extramask,  in sys_sigreturn()
111 						 sizeof(frame->extramask))))  in sys_sigreturn()
116 	if (restore_sigcontext(regs, &frame->sc))  in sys_sigreturn()
132 	struct rt_signal_frame __user *frame;  in sys_rt_sigreturn()  local
136 	frame = (struct rt_signal_frame *) rdusp();  in sys_rt_sigreturn()
143 	if (((long)frame) & 3)  in sys_rt_sigreturn()
146 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))  in sys_rt_sigreturn()
149 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in sys_rt_sigreturn()
154 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in sys_rt_sigreturn()
157 	if (restore_altstack(&frame->uc.uc_stack))  in sys_rt_sigreturn()
216 	struct signal_frame __user *frame;  in setup_frame()  local
219 	frame = get_sigframe(ksig, sizeof(*frame));  in setup_frame()
221 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))  in setup_frame()
224 	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);  in setup_frame()
230 		err |= __copy_to_user(frame->extramask, &set->sig[1],  in setup_frame()
231 				      sizeof(frame->extramask));  in setup_frame()
254 		err |= __put_user(0x9c5f,         (short __user*)(frame->retcode+0));  in setup_frame()
255 		err |= __put_user(__NR_sigreturn, (short __user*)(frame->retcode+2));  in setup_frame()
256 		err |= __put_user(0xe93d,         (short __user*)(frame->retcode+4));  in setup_frame()
274 	wrusp((unsigned long)frame);  in setup_frame()
284 	struct rt_signal_frame __user *frame;  in setup_rt_frame()  local
287 	frame = get_sigframe(ksig, sizeof(*frame));  in setup_rt_frame()
289 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))  in setup_rt_frame()
292 	err |= __put_user(&frame->info, &frame->pinfo);  in setup_rt_frame()
293 	err |= __put_user(&frame->uc, &frame->puc);  in setup_rt_frame()
294 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);  in setup_rt_frame()
300 	err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));  in setup_rt_frame()
301 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);  in setup_rt_frame()
302 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in setup_rt_frame()
303 	err |= __save_altstack(&frame->uc.uc_stack, rdusp());  in setup_rt_frame()
325 		err |= __put_user(0x9c5f, (short __user*)(frame->retcode+0));  in setup_rt_frame()
328 				  (short __user*)(frame->retcode+2));  in setup_rt_frame()
330 		err |= __put_user(0xe93d, (short __user*)(frame->retcode+4));  in setup_rt_frame()
348 	regs->r11 = (unsigned long) &frame->info;  in setup_rt_frame()
352 	wrusp((unsigned long)frame);  in setup_rt_frame()