frame_record
struct frame_record *record;
record = (struct frame_record *)fp;
struct frame_record record;
sp = round_down(sp - sizeof(struct frame_record), 16);
user->next_frame = (struct frame_record __user *)sp;
round_up(sizeof(struct frame_record), 16) +
struct frame_record __user *next_frame;
struct frame_record *record;
record = (struct frame_record *)fp;