102 	struct rt_sigframe __user *frame;  in SYSCALL_DEFINE0()  local
109 	frame = (struct rt_sigframe __user *)regs->sp;  in SYSCALL_DEFINE0()
111 	if (!access_ok(frame, sizeof(*frame)))  in SYSCALL_DEFINE0()
114 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))  in SYSCALL_DEFINE0()
119 	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))  in SYSCALL_DEFINE0()
122 	if (restore_altstack(&frame->uc.uc_stack))  in SYSCALL_DEFINE0()
135 			frame, (void *)regs->epc, (void *)regs->sp);  in SYSCALL_DEFINE0()
141 static long setup_sigcontext(struct rt_sigframe __user *frame,  in setup_sigcontext()  argument
144 	struct sigcontext __user *sc = &frame->uc.uc_mcontext;  in setup_sigcontext()
180 	struct rt_sigframe __user *frame;  in setup_rt_frame()  local
184 	frame = get_sigframe(ksig, regs, sizeof(*frame));  in setup_rt_frame()
185 	if (!access_ok(frame, sizeof(*frame)))  in setup_rt_frame()
188 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);  in setup_rt_frame()
191 	err |= __put_user(0, &frame->uc.uc_flags);  in setup_rt_frame()
192 	err |= __put_user(NULL, &frame->uc.uc_link);  in setup_rt_frame()
193 	err |= __save_altstack(&frame->uc.uc_stack, regs->sp);  in setup_rt_frame()
194 	err |= setup_sigcontext(frame, regs);  in setup_rt_frame()
195 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));  in setup_rt_frame()
208 	if (copy_to_user(&frame->sigreturn_code, __user_rt_sigreturn,  in setup_rt_frame()
209 			 sizeof(frame->sigreturn_code)))  in setup_rt_frame()
212 	addr = (unsigned long)&frame->sigreturn_code;  in setup_rt_frame()
214 	flush_icache_range(addr, addr + sizeof(frame->sigreturn_code));  in setup_rt_frame()
227 	regs->sp = (unsigned long)frame;  in setup_rt_frame()
229 	regs->a1 = (unsigned long)(&frame->info); /* a1: siginfo pointer */  in setup_rt_frame()
230 	regs->a2 = (unsigned long)(&frame->uc);   /* a2: ucontext pointer */  in setup_rt_frame()
235 		(void *)regs->epc, (void *)regs->ra, frame);  in setup_rt_frame()