QMAGIC 79 include/uapi/linux/a.out.h && N_MAGIC(x) != QMAGIC) QMAGIC 87 include/uapi/linux/a.out.h (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec))) QMAGIC 112 include/uapi/linux/a.out.h #define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? PAGE_SIZE : 0)