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

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Message-ID: <CAH0uvoiFvHu-iKJFNHeO1TcQHLMgo60N+1zXFQx3QrLibgEU6w@mail.gmail.com>
Date: Thu, 20 Jun 2024 02:25:32 +0800
From: Howard Chu <howardchu95@...il.com>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>, Jiri Olsa <jolsa@...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 Thu, Jun 20, 2024 at 2:19 AM Namhyung Kim <namhyung@...nel.org> wrote:
>
> Hello,
>
> On Wed, Jun 19, 2024 at 9:55 AM Arnaldo Carvalho de Melo
> <acme@...nel.org> wrote:
> >
> > 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
>
> Please make sure that your change doesn't break the build
> in case libbpf is not available.  For example, a build without
> libelf seems to be broken.
>
>   $ make NO_LIBELF=1
>
> Thanks,
> Namhyung

Thank you, I'll fix this.

Thanks,
Howard