linux-kernel - Re: Implement lbr-as-callgraph v10

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Message-ID: <20141118104416.GE27645@krava.brq.redhat.com>
Date:	Tue, 18 Nov 2014 11:44:16 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Andi Kleen <andi@...stfloor.org>, Jiri Olsa <jolsa@...nel.org>,
	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
	"Liang, Kan" <kan.liang@...el.com>
Subject: Re: Implement lbr-as-callgraph v10

On Mon, Nov 17, 2014 at 06:34:57PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Wed, Nov 12, 2014 at 06:05:18PM -0800, Andi Kleen escreveu:
> > [Reworks to address all the review feedback. Rebased to latest tree]
> > [Just a repost after a rebase]
> > [Even more review feedback and some bugs addressed.]
> > [Only port to changes in perf/core. No other changes.]
> > [Rebase to latest perf/core]
> > [Another rebase. No changes]
> > 
> > This patchkit implements lbr-as-callgraphs in per freport,
> > as an alternative way to present LBR information.
> 
> Ok, I have this in my perf/core branch, but I need to test it further,
> as I couldn't get the output that appears on some of the changelogs.
> 
> If you could take a look at
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf/core
> 
> To see if I made some mistake, that would be of help,
> 

I'm getting compile error for DEBUG=1

jirka


[jolsa@...va perf]$ make DEBUG=1 JOBS=1
  BUILD:   Doing 'make -j1' parallel build
  CC       util/machine.o
In file included from /home/jolsa/kernel.org/linux-perf/tools/perf/util/include/../../../../include/uapi/linux/swab.h:5:0,
                 from /home/jolsa/kernel.org/linux-perf/tools/perf/util/include/asm/byteorder.h:2,
                 from /home/jolsa/kernel.org/linux-perf/include/uapi/linux/perf_event.h:19,
                 from util/../perf.h:7,
                 from util/callchain.h:4,
                 from util/machine.c:1:
util/machine.c: In function ‘remove_loops’:
/home/jolsa/kernel.org/linux-perf/tools/include/linux/compiler.h:64:20: error: call to ‘__compiletime_assert_1450’ declared with attribute error: Please upgrade the type of the hash table from unsigned char
    prefix ## suffix();    \
                    ^
/home/jolsa/kernel.org/linux-perf/tools/include/linux/compiler.h:69:2: note: in expansion of macro ‘__compiletime_assert’
  __compiletime_assert(condition, msg, prefix, suffix)
  ^
/home/jolsa/kernel.org/linux-perf/tools/include/linux/compiler.h:81:2: note: in expansion of macro ‘_compiletime_assert’
  _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
  ^
/home/jolsa/kernel.org/linux-perf/tools/include/linux/bug.h:13:37: note: in expansion of macro ‘compiletime_assert’
 #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                     ^
util/machine.c:1449:2: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
  BUILD_BUG_ON_MSG(PERF_MAX_BRANCH_DEPTH > 127,
  ^
make[1]: *** [util/machine.o] Error 1
make: *** [all] Error 2
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