75 	struct rt_sigframe __user *frame = (struct rt_sigframe __user *)regs->sp;  in _sys_rt_sigreturn()  local
83 	if (((unsigned long)frame) & 3)  in _sys_rt_sigreturn()
86 	if (!access_ok(frame, sizeof(*frame)))  in _sys_rt_sigreturn()
88 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in _sys_rt_sigreturn()
93 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in _sys_rt_sigreturn()
96 	if (restore_altstack(&frame->uc.uc_stack))  in _sys_rt_sigreturn()
159 	struct rt_sigframe __user *frame;  in setup_rt_frame()  local
163 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
165 	if (!access_ok(frame, sizeof(*frame)))  in setup_rt_frame()
170 		err |= copy_siginfo_to_user(&frame->info, &ksig->info);  in setup_rt_frame()
173 	err |= __put_user(0, &frame->uc.uc_flags);  in setup_rt_frame()
174 	err |= __put_user(NULL, &frame->uc.uc_link);  in setup_rt_frame()
175 	err |= __save_altstack(&frame->uc.uc_stack, regs->sp);  in setup_rt_frame()
176 	err |= setup_sigcontext(regs, &frame->uc.uc_mcontext);  in setup_rt_frame()
178 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in setup_rt_frame()
184 	return_ip = (unsigned long)&frame->retcode;  in setup_rt_frame()
189 	err |= __put_user(0xa960,             (short __user *)(frame->retcode + 0));  in setup_rt_frame()
190 	err |= __put_user(__NR_rt_sigreturn,  (short __user *)(frame->retcode + 2));  in setup_rt_frame()
191 	err |= __put_user(0x20000001, (unsigned long __user *)(frame->retcode + 4));  in setup_rt_frame()
192 	err |= __put_user(0x15000000, (unsigned long __user *)(frame->retcode + 8));  in setup_rt_frame()
201 	regs->gpr[4] = (unsigned long)&frame->info;  /* arg 2: (siginfo_t*) */  in setup_rt_frame()
202 	regs->gpr[5] = (unsigned long)&frame->uc;    /* arg 3: ucontext */  in setup_rt_frame()
205 	regs->sp = (unsigned long)frame;  in setup_rt_frame()