On Fri, Jun 10, 2022 at 09:58:02AM -0700, Stanislav Fomichev wrote:
> @@ -84,6 +87,19 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type,
> }
>
> attach_type_str = libbpf_bpf_attach_type_str(attach_type);
> +
> + if (btf_vmlinux &&
> + info.attach_btf_id < btf__type_cnt(btf_vmlinux)) {
> + /* Note, we ignore info.attach_btf_obj_id for now. There
> + * is no good way to resolve btf_id to vmlinux
> + * or module btf.
> + */
On usage could be using it to get the btf_info by bpf_obj_get_info_by_fd.
Check for the kernel_btf == true and name is "vmlinux".
To be future proof, it can print <unknown> func for anything
other than "vmlinux" btf.
