Extend map event_pipe to consume BPF ring buffer records, with plain and JSON output and focused tests for records, shutdown and invalid arguments.
Changes in v5: - Suppress cpu/index completion after selecting a ring buffer map by id, name or pinned path, using _bpftool_map_guess_map_type(). Keep the existing suggestions for perf event arrays and unresolved map types. - Rebase onto current bpf-next. No other changes from v4. This addresses the v4 review: https://lore.kernel.org/r/a89e2e325b87c215e0fb6e4a24284922d7656cfc0e2a247f0c8c1cd823764...@mail.kernel.org Built bpftool and reran all 18 ringbuf subtests against it in an x86-64 VM; all passed. Also checked completion against live ringbuf and perf_event_array maps by id, name and pinned path, plus unresolved maps and already-specified selectors with mocked output. v4: https://lore.kernel.org/r/[email protected] Tianyi Chen (2): bpftool: Read ring buffer maps with event_pipe selftests/bpf: Cover bpftool ring buffer event_pipe .../bpf/bpftool/Documentation/bpftool-map.rst | 14 +- tools/bpf/bpftool/bash-completion/bpftool | 59 +-- tools/bpf/bpftool/map_perf_ring.c | 87 +++- tools/testing/selftests/bpf/bpftool_helpers.c | 2 +- tools/testing/selftests/bpf/bpftool_helpers.h | 1 + .../bpf/prog_tests/bpftool_ringbuf.c | 417 ++++++++++++++++++ .../selftests/bpf/progs/bpftool_ringbuf.c | 47 ++ 7 files changed, 578 insertions(+), 49 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/bpftool_ringbuf.c create mode 100644 tools/testing/selftests/bpf/progs/bpftool_ringbuf.c base-commit: 48ea1ba704aa3a9975e917411ee05bbe67d65744 -- 2.55.0
