New files:

Modified files:
kernel/bpf/btf.c
tools/lib/bpf/features.c
tools/lib/bpf/libbpf_internal.h
tools/lib/bpf/libbpf.map
tools/include/uapi/linux/btf.h
scripts/Makefile.btf
include/uapi/linux/btf.h
tools/lib/bpf/libbpf.c
tools/lib/bpf/btf.h
tools/lib/bpf/libbpf_probes.c
tools/lib/bpf/btf.c