linux-kernel - Re: [PATCH v2 0/5] perf trace: Augment enum arguments with BTF

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Date: Wed, 19 Jun 2024 10:55:27 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Howard Chu <howardchu95@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>, linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v2 0/5] perf trace: Augment enum arguments with BTF

On Wed, Jun 19, 2024 at 04:20:37PM +0800, Howard Chu wrote:
> changes in v2:
> - Move inline landlock_add_rule c code to tests/workloads
> - Rename 'enum_aug_prereq' to 'check_vmlinux'

Usually the versions descriptions comes at the end, after your signature
line, just before the list of csets in the series.
 
> Augment enum arguments in perf trace, including syscall arguments and
> non-syscall tracepoint arguments. The augmentation is implemented using
> BTF.
> 
> This patch series also includes a bug fix by Arnaldo Carvalho de Melo 
> <acme@...hat.com>, which makes more syscalls to be traceable by perf trace.
> 
> Test is included.

Thanks, the patch submission is now very good, at some point you'll be
able to point to a git tree from where to do a pull, then have it with a
signed tag, etc, all this is not necessary at this point in our
collaboration, but as you evolve as a kernel developer, it eventually
will be asked from you.

And it comes with a test that introduces a 'perf test -w' workload,
super great!

- Arnaldo
 
> Howard Chu (5):
>   perf trace: Fix iteration of syscall ids in syscalltbl->entries
>   perf trace: Augment enum syscall arguments with BTF
>   perf trace: Augment enum tracepoint arguments with BTF
>   perf trace: Filter enum arguments with enum names
>   perf trace: Add test for enum augmentation
> 
>  tools/perf/builtin-trace.c                    | 214 ++++++++++++++++--
>  tools/perf/tests/builtin-test.c               |   1 +
>  tools/perf/tests/shell/trace_btf_enum.sh      |  57 +++++
>  tools/perf/tests/tests.h                      |   1 +
>  tools/perf/tests/workloads/Build              |   1 +
>  .../perf/tests/workloads/landlock_add_rule.c  |  32 +++
>  tools/perf/util/syscalltbl.c                  |   7 +
>  tools/perf/util/syscalltbl.h                  |   1 +
>  8 files changed, 289 insertions(+), 25 deletions(-)
>  create mode 100755 tools/perf/tests/shell/trace_btf_enum.sh
>  create mode 100644 tools/perf/tests/workloads/landlock_add_rule.c
> 
> -- 
> 2.45.2
>