signal_frame_64
sigframe = (struct signal_frame_64 __user *) sp;
if (nip == fp + offsetof(struct signal_frame_64, tramp))
struct signal_frame_64 __user *sf;
sf = (struct signal_frame_64 __user *) sp;
struct signal_frame_64 __user *sigframe;
if (next_sp - sp >= sizeof(struct signal_frame_64) &&