[$] BTF, Rust, and the kernel toolchain

BPF Type Format (BTF),BPF's debugging information format, has undergone rapid evolution to matchthe evolving needs of BPF programs. Jose Marchesi spoke at Kangrejos about someof that work - and how it could impact Rust, specifically. He discussed debuginformation, kernel-specific relocations, and the planned changes to kernelstack unwinding. Each of these will require some amount of work to fullysupport in Rust, but preliminary signs look promising.