proj:token_trace all:bpftool btf dump file/sys/kernel/btf/vmlinux format cvmlinux.h clang-g-O3-target bpf-D__TARGET_ARCH_x86_64-c $(proj).bpf.c-o $(proj).bpf.o-I/usr/include-I.bpftool gen skeleton $(proj).bpf.o$(proj).skel.h clang $(proj).c-o $(proj)-lbpf-lelf-lz clang token_userns_demo.c-o token_userns_demo-lbpf-lelf-lz mount:mkdir-p/tmp/bpf-token sudo mount-t bpf bpffs/tmp/bpf-token-o delegate_cmdsprog_load:map_create:btf_load:link_create,delegate_mapsarray,delegate_progsxdp:socket_filter,delegate_attachsany