linux-kernel - Re: [PATCHSET 0/5] perf tools: Speed up dwarf callchain post-unwinding for libunwind (v4)

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Message-ID: <877fzqe1pa.fsf@sejong.aot.lge.com>
Date:	Fri, 24 Oct 2014 09:44:17 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Jiri Olsa <jolsa@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCHSET 0/5] perf tools: Speed up dwarf callchain post-unwinding for libunwind (v4)

On Thu, 23 Oct 2014 20:35:42 -0300, Arnaldo Carvalho de Melo wrote:
> Em Wed, Oct 22, 2014 at 10:34:27AM +0900, Namhyung Kim escreveu:
>> Hi Arnaldo,
>> 
>> On Wed, 15 Oct 2014 17:06:30 -0300, Arnaldo Carvalho de Melo wrote:
>> > Next time please run: (I'm fixing this up this time)
>> >
>> > [acme@zoo linux]$ time make -C tools/perf build-test
>> ...
>> > In file included from util/machine.c:14:0:
>> > util/unwind.h: In function ‘unwind__prepare_access’:
>> > util/unwind.h:47:57: error: unused parameter ‘thread’
>> > [-Werror=unused-parameter]
>> >  static inline int unwind__prepare_access(struct thread *thread)
>> >                                                          ^
>> > util/unwind.h: In function ‘unwind__finish_access’:
>> > util/unwind.h:52:57: error: unused parameter ‘thread’
>> > [-Werror=unused-parameter]
>> >  static inline void unwind__finish_access(struct thread *thread) {}
>> >                                                          ^
>> > cc1: all warnings being treated as errors
>> > make[3]: *** [util/machine.o] Error 1
>> > make[3]: *** Waiting for unfinished jobs....
>> > make[2]: *** [all] Error 2
>> >   test: test -x ./perf
>> > make[1]: *** [make_no_libelf] Error 1
>> > make: *** [build-test] Error 2
>> > make: Leaving directory `/home/git/linux/tools/perf'
>> 
>> So it seems you didn't include the patch 3/5 which is the key of this
>> series..  Could you please check it again?
>
> Yeah, I'm adding it now, and in this case as well the __maybe_unused was
> missing, added.

It was my bad to miss the annotation, sorry.


>
> I'll push later and will drop you a note, so that you can, please, check
> if the end result is sane.

Thank you!

> Sorry for the slip up,

No problem. :)

Thanks,
Namhyung
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