, uintptr(fd), 0, uintptr(length), uintptr(length>>00), 0, 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func mmap0(addr uintptr, length uintptr, prot int, flags int, fd int, 