en Copyright 2015 Java http://172.16.0.5:8080/history/linux-6.15/kernel/bpf/preload/iterators/README#0f0e5f5b bpf: iterators: Split iterators.lskel.h into little- and big- endian versionsiterators.lskel.h is little-endian, therefore bpf iterator is currentlybroken on big-endian systems. Introduce a big-endian version and addinstructions regarding its generation. Unfortunately bpftool'scross-endianness capabilities are limited to BTF right now, so theprocedure requires access to a big-endian machine or a configuredemulator.Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>Link: https://lore.kernel.org/r/20230128000650.1516334-25-iii@linux.ibm.comSigned-off-by: Alexei Starovoitov <ast@kernel.org> List of files: /linux-6.15/kernel/bpf/preload/iterators/README Sat, 28 Jan 2023 00:06:43 +0000 Ilya Leoshkevich <iii@linux.ibm.com> http://172.16.0.5:8080/history/linux-6.15/kernel/bpf/preload/iterators/README#f0fdfefb bpf: Add BPF program and map iterators as built-in BPF programs.The program and map iterators work similar to seq_file-s.Once the program is pinned in bpffs it can be read with "cat" toolto print human readable output. In this case about BPF programs and maps.For example:$ cat /sys/fs/bpf/progs.debug id name attached 5 dump_bpf_map bpf_iter_bpf_map 6 dump_bpf_prog bpf_iter_bpf_prog$ cat /sys/fs/bpf/maps.debug id name max_entries 3 iterator.rodata 1To avoid kernel build dependency on clang 10 separate bpf skeleton generationinto manual "make" step and instead check-in generated .skel.h into git.Unlike 'bpftool prog show' in-kernel BTF name is used (when available)to print full name of BPF program instead of 16-byte truncated name.Signed-off-by: Alexei Starovoitov <ast@kernel.org>Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>Acked-by: Andrii Nakryiko <andriin@fb.com>Link: https://lore.kernel.org/bpf/20200819042759.51280-3-alexei.starovoitov@gmail.com List of files: /linux-6.15/kernel/bpf/preload/iterators/README Wed, 19 Aug 2020 04:27:57 +0000 Alexei Starovoitov <ast@kernel.org>