On Thu, Aug 07, 2025 at 03:25:34PM -0300, Arnaldo Carvalho de Melo wrote: > If we use completely unmodified libbpf, bpftool, etc, the "BTF archive" > in the resulting vmlinux .BTF ELF section is still consumable, but just > the first "CU" (the first .o .BTF ELF section) is visible, the one for > init/main.o: > acme@number:~/git/linux$ bpftool version > bpftool v7.5.0 > using libbpf v1.5 > features: llvm, skeletons > acme@number:~/git/linux$ > acme@number:~/git/bpf-next$ bpftool btf dump file ~/vmlinux-v6.16.0+.btf_archive format c | wc -l > 11361 > acme@number:~/git/linux$ bpftool btf dump file ../build/v6.16.0+/init/main.o format c | wc -l > 11361 > acme@number:~/git/linux$ > Furthermore: > acme@number:~/git/linux$ bpftool btf dump file ../build/v6.16.0+/init/main.o format c > a > acme@number:~/git/linux$ bpftool btf dump file ~/vmlinux-v6.16.0+.btf_archive format c > b Oops, the expected: acme@number:~/git/linux$ diff a b acme@number:~/git/linux$ > acme@number:~/git/linux$ - Arnaldo
