107 	struct sigframe __user *frame = (struct sigframe *)rdusp();  in sys_sigreturn()  local
115         if (((long)frame) & 3)  in sys_sigreturn()
118 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))  in sys_sigreturn()
120 	if (__get_user(set.sig[0], &frame->sc.oldmask)  in sys_sigreturn()
122 		&& __copy_from_user(&set.sig[1], frame->extramask,  in sys_sigreturn()
123 				    sizeof(frame->extramask))))  in sys_sigreturn()
128 	if (restore_sigcontext(regs, &frame->sc))  in sys_sigreturn()
143 	struct rt_sigframe __user *frame = (struct rt_sigframe *)rdusp();  in sys_rt_sigreturn()  local
151         if (((long)frame) & 3)  in sys_rt_sigreturn()
154 	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))  in sys_rt_sigreturn()
156 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in sys_rt_sigreturn()
161 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in sys_rt_sigreturn()
164 	if (restore_altstack(&frame->uc.uc_stack))  in sys_rt_sigreturn()
228 	struct sigframe __user *frame;  in setup_frame()  local
232 	frame = get_sigframe(ksig, sizeof(*frame));  in setup_frame()
234 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))  in setup_frame()
237 	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);  in setup_frame()
242 		err |= __copy_to_user(frame->extramask, &set->sig[1],  in setup_frame()
243 				      sizeof(frame->extramask));  in setup_frame()
254 		return_ip = (unsigned long)&frame->retcode;  in setup_frame()
256 		err |= __put_user(0x9c5f,         (short __user*)(frame->retcode+0));  in setup_frame()
257 		err |= __put_user(__NR_sigreturn, (short __user*)(frame->retcode+2));  in setup_frame()
258 		err |= __put_user(0xe93d,         (short __user*)(frame->retcode+4));  in setup_frame()
272 	wrusp((unsigned long)frame);  in setup_frame()
280 	struct rt_sigframe __user *frame;  in setup_rt_frame()  local
284 	frame = get_sigframe(ksig, sizeof(*frame));  in setup_rt_frame()
286 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))  in setup_rt_frame()
289 	err |= __put_user(&frame->info, &frame->pinfo);  in setup_rt_frame()
290 	err |= __put_user(&frame->uc, &frame->puc);  in setup_rt_frame()
291 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);  in setup_rt_frame()
296         err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));  in setup_rt_frame()
298 	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);  in setup_rt_frame()
300 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in setup_rt_frame()
302 	err |= __save_altstack(&frame->uc.uc_stack, rdusp());  in setup_rt_frame()
313 		return_ip = (unsigned long)&frame->retcode;  in setup_rt_frame()
315 		err |= __put_user(0x9c5f, (short __user *)(frame->retcode+0));  in setup_rt_frame()
317 			(short __user *)(frame->retcode+2));  in setup_rt_frame()
318 		err |= __put_user(0xe93d, (short __user *)(frame->retcode+4));  in setup_rt_frame()
333 	regs->r11 = (unsigned long)&frame->info;  in setup_rt_frame()
338 	wrusp((unsigned long)frame);  in setup_rt_frame()