How to specify source of BTF？

[cigarl]

I found the previous commit record, but I didn't find it in the latest code.
And i find btf/vmlinx and other path in latest code.

It seems that custom specifying BTF is no longer allowed,or did I miss something?

[brycekahle]

See ProgramOptions.KernelTypes and CollectionOptions.Programs.KernelTypeshttps://pkg.go.dev/github.com/cilium/ebpf#ProgramOptions

[cigarl]

thank you soooo much.

BTW, It would be greater if each interface had an example of how to use the relevant parameters (It took me a little bit to understand how to generate Spec).