[PATCH v2 bpf-next 0/4] veristat: CSV output, comparison mode, filtering

[Andrii Nakryiko <andrii@kernel.org>]

Add three more critical features to veristat tool, which make it sufficient
for a practical work on BPF verifier:

  - CSV output, which allows easier programmatic post-processing of stats;

  - building upon CSV output, veristat now supports comparison mode, in which
    two previously captured CSV outputs from veristat are compared with each
    other in a convenient form;

  - flexible allow/deny filtering using globs for BPF object files and
    programs, allowing to narrow down target BPF programs to be verified.

See individual patches for more details and examples.

v1->v2:
- split out double-free fix into patch #1 (Yonghong);
- fixed typo in verbose flag (Quentin);
- baseline and comparison stats were reversed in output table, fixed that.

Andrii Nakryiko (4):
  selftests/bpf: fix double bpf_object__close() in veristate
  selftests/bpf: add CSV output mode for veristat
  selftests/bpf: add comparison mode to veristat
  selftests/bpf: add ability to filter programs in veristat

 tools/testing/selftests/bpf/veristat.c   | 853 ++++++++++++++++++++---
 tools/testing/selftests/bpf/veristat.cfg |  17 +
 2 files changed, 787 insertions(+), 83 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/veristat.cfg

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2.30.2