btf__pointer_size
LIBBPF_API size_t btf__pointer_size(const struct btf *btf);
d->ptr_sz = btf__pointer_size(btf) ? : sizeof(void *);
ASSERT_EQ(btf__pointer_size(btf2), 8, "inherit_ptr_sz");
CHECK(btf__pointer_size(btf) != 8, "ptr_sz", "exp %d, got %zu\n",
8, btf__pointer_size(btf));
ASSERT_EQ(btf__pointer_size(btf2), 8, "inherit_ptr_sz");