}

int mm_protect(MM *mm, int mode) {
  int pmode = 0;
  if (mode & MM_PROT_NONE) {
    pmode |= PROT_NONE;
  }
  if (mode & MM_PROT_READ) {
    pmode |= PROT_READ;
  }
  if (mode & MM_PROT_WRITE) {
    pmode |= PROT_WRITE;
  }
  if (mode & MM_PROT_EXEC) {
    pmode |= PROT_EXEC;
  }
  return (mprotect(mm, mm->size, pmode) == 0);
}