New files:

Modified files:
tools/lib/bpf/features.c
include/linux/bpf_verifier.h
tools/lib/bpf/libbpf_internal.h
kernel/bpf/syscall.c
kernel/bpf/verifier.c
include/linux/bpf.h
tools/include/uapi/linux/bpf.h
include/linux/btf.h
tools/lib/bpf/bpf.c
kernel/bpf/btf.c
tools/lib/bpf/bpf.h
include/uapi/linux/bpf.h
kernel/bpf/log.c
include/linux/syscalls.h