static void *wrap_realloc(void *ptr, size_t size) {
  free_blocks_check();
  void *ret = umm_realloc(ptr, size);
  free_blocks_check();
  return ret;
}
static void *wrap_realloc(void *ptr, size_t size) {
  free_blocks_check();
  void *ret = umm_realloc(ptr, size);
  free_blocks_check();
  return ret;
}