New files:

Modified files:
tools/bpf/resolve_btfids/main.c
tools/lib/bpf/btf.h
kernel/bpf/btf.c
scripts/Makefile.btf
scripts/Makefile.modfinal
scripts/link-vmlinux.sh
tools/lib/bpf/libbpf.map
tools/lib/bpf/btf.c