linux-kernel - Re: [PATCH v2 0/4] Minor perf build fixes

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Date:	Tue, 09 Jul 2013 14:22:36 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Ramkumar Ramachandra <artagnon@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/4] Minor perf build fixes

Hi Ramkumar,

On Fri,  5 Jul 2013 15:46:13 +0530, Ramkumar Ramachandra wrote:
> Hi,
>
> After Namhyung's review of the first iteration, I realized that I'd
> made a few mistakes.  This iteration should be much better.
>
> [1/4] is the same as before.
>
> [2/4] is new, and is used in [4/4].
>
> [3/4] introduces a util/perf-perl.h to include <perl.h> with #pragma
> statements, hence eliminating duplication.  It then updates Context.xs
> and trace-event-perl.c to use this new header.

I prefer the name being "perl.h" and use #include_next as we include the
'util' directory in the compiler search path.

Other than that, the change looks good to me.

>
> Also, notice that feature-tests.mak has not been touched in this
> iteration: the Perl check passes without needing the #pragma
> statements (although I'm not sure why exactly).

I guess it's because FLAGS_PERL_EMBED doesn't contain the usual perf
CFLAGS which has -Werror.

Thanks,
Namhyung

>
> Thanks.
>
> Ramkumar Ramachandra (4):
>   perf/Makefile: do not open-code shell-sq
>   perf/Perf-Trace-Util: fix broken include in Context.xs
>   perf: squelch warnings from perl.h to compile-pass
>   perf/Perf-Trace-Util: regenerate Context.c
>
>  tools/perf/Makefile                                |   2 +-
>  tools/perf/config/Makefile                         |  23 ++-
>  tools/perf/scripts/perl/Perf-Trace-Util/Context.c  | 215 +++++++++++++++++----
>  tools/perf/scripts/perl/Perf-Trace-Util/Context.xs |   6 +-
>  tools/perf/util/perf-perl.h                        |  10 +
>  .../perf/util/scripting-engines/trace-event-perl.c |   2 +-
>  6 files changed, 199 insertions(+), 59 deletions(-)
>  create mode 100644 tools/perf/util/perf-perl.h
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