bpf_link__pin
rc = bpf_link__pin(link, cg_pin_path);
err = bpf_link__pin(link, path);
err = bpf_link__pin(link, path);
return bpf_link__pin(link, pinfile);
LIBBPF_API int bpf_link__pin(struct bpf_link *link, const char *path);
err = bpf_link__pin(link, path);
err = bpf_link__pin(link, path);
err = bpf_link__pin(link, link_pin_path);