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

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Date:	Thu, 23 Oct 2014 20:35:42 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Namhyung Kim <namhyung@...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)

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.

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

Sorry for the slip up,

- Arnaldo
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