[bboreham]

CO-RE is great, but for those who have to run on older kernels an approach is to loop, guessing the offset and running an experiment to see if correct:

https://github.com/weaveworks/tcptracer-bpf/blob/cd53e7c84ba...

This was done (by Kinvolk) for the visualisation tool Weave Scope; also picked up by DataDog https://github.com/DataDog/datadog-process-agent/tree/master...