add prog id to prog map

Иван Иванов

I created prog_map in my kern.o and call bpf_tail_call to it. Loaded with ip link set... Loaded another prog with bpftool. So tried to update map with bpftool woth id of my second progbut it does not work. Can i use tail calls only like in sockx3, where all progs are in the same file? If not, can you give some examples?
And can i use tail_calls not with sock_buff but with xdp_md context?

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