eBPF toy code examples (running in kernel) to familiarize yourself

with syntax and features:

- BTF defined map examples

- bpf_graft.c -> Demo on altering runtime behaviour

- bpf_shared.c -> Ingress/egress map sharing example

- bpf_map_in_map.c -> Using map in map example

- legacy struct bpf_elf_map defined map examples

- legacy/bpf_shared.c -> Ingress/egress map sharing example

- legacy/bpf_tailcall.c -> Using tail call chains

- legacy/bpf_cyclic.c -> Simple cycle as tail calls

- legacy/bpf_graft.c -> Demo on altering runtime behaviour

- legacy/bpf_map_in_map.c -> Using map in map example

Note: Users should use new BTF way to defined the maps, the examples

in legacy folder which is using struct bpf_elf_map defined maps is not

recommended.