I think the more idiomatic thing to use in Go is Cilium, which has tooling support for loading and attaching eBPF programs, and also a weird embedding system that calls clang9 directly.

I find the Cilium libraries sort of hit-or-miss† but they mostly work well, but, again, I just build my BPF programs themselves with Makefiles into .o's, and use Cilium (or, for XDP/TC, iproute2) to load them.

† https://twitter.com/tqbf/status/1336825568478834689