New files:

Modified files:
tools/lib/bpf/btf_dump.c
include/uapi/linux/btf.h
tools/bpf/bpftool/gen.c
tools/include/uapi/linux/btf.h
tools/lib/bpf/libbpf_internal.h
tools/bpf/bpftool/btf.c
include/linux/btf.h
tools/lib/bpf/btf.h
tools/lib/bpf/relo_core.c
tools/lib/bpf/libbpf.c
tools/lib/bpf/features.c
tools/lib/bpf/btf.c
kernel/bpf/btf.c