A collection of vmlinux.h #

When developing eBPF programs it's necessary to access several kernel definitions. These are all contained on vmlinux.h, which can be generated off of a running kernel's BTF-encoded information with

$ bpftool btf dump file /sys/kernel/btf/vmlinux format c > vmlinux.h

Be sure to check bpftool-btf(8) for more details. Storing this file out-of-tree reduces the source repo's size whilst at the same time not skewing the relative size of each language in the codebase. This is what libbpf/vmlinux.h does as well.