Evolving the BPF Type Format

Explore the evolution of the BPF Type Format (BTF) in this Linux Plumbers Conference talk. Delve into key issues and proposed solutions surrounding BTF, which has become increasingly central to core BPF features and other subsystems like ftrace. Learn about initiatives to enhance BTF adoption, including separating kernel BTF into a dedicated vmlinux BTF module for small embedded systems, implementing explicit matching between kernel and module BTF to identify mismatches, supporting standalone BTF for modules, and auto-detecting available BTF features in a kernel. Gain insights into how these improvements can benefit BTF implementation and usage across various systems and scenarios.