linux-kernel - Re: [PATCH 2/5] perf tools: Move callchain_param to util object in to fix python test

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Date:	Thu, 2 Oct 2014 17:08:27 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>, Milian Wolff <mail@...ianw.de>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 2/5] perf tools: Move callchain_param to util object in
 to fix python test

On Thu, Oct 02, 2014 at 11:59:49AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Wed, Oct 01, 2014 at 06:00:26PM +0200, Jiri Olsa escreveu:
> > In following commit we changed the location of callchains data:
> >   b016b5ba554b perf tools: Move callchain config from record_opts to callchain_param
> > 
> > Now all callchains stuff stays in callchain_param struct,
> > which adds its dependency for evsel.c object and breaks
> > python perf.so usage (unresolved callchain_param).
> > 
> > Moving callchain_param into callchain.c and adding it into
> > python-ext-sources unleash just another dependency hell,
> > so I ended up adding callchain_param into util.c for now.
> 
> Against what branch is the patch? I am not finding b016b5ba554b in none

[jolsa@...va perf]$ git describe --contains b016b5ba554b
fatal: cannot describe 'b016b5ba554ba38c74241ef8739f8fde8878d3eb'
[jolsa@...va perf]$ git show --oneline b016b5ba554b | head -1
b016b5ba554b perf tools: Move callchain config from record_opts to callchain_param
[jolsa@...va perf]$ git show 72a128aa083a > /tmp/p
[jolsa@...va perf]$ git show b016b5ba554b > /tmp/p1
[jolsa@...va perf]$ diff -puw /tmp/p /tmp/p1 
--- /tmp/p      2014-10-02 17:06:20.072958720 +0200
+++ /tmp/p1     2014-10-02 17:06:26.035946113 +0200
@@ -1,4 +1,4 @@
-commit 72a128aa083a7f4cc4f800718aaae05d9c698e26
+commit b016b5ba554ba38c74241ef8739f8fde8878d3eb
 Author: Namhyung Kim <namhyung@...nel.org>
 Date:   Tue Sep 23 10:01:41 2014 +0900


I guess I took some version before your rebase

> of the branches in my linux git repo and the python 'perf test' entry
> works as expected:
> 
> [root@zoo ~]# perf test python
> 17: Try 'use perf' in python, checking link problems       : Ok
> [root@zoo ~]# 

hum.. yours acme/perf/core is failing for me:

[jolsa@...va perf]$ ./perf test python
17: Try 'use perf' in python, checking link problems       : FAILED!
[jolsa@...va perf]$ git show --oneline HEAD | head -1
281f92f233a5 perf record: Fix error message for --filter option not coming after tracepoint

maybe you need 'make clean && make' ?

jirka

> 
> - Arnaldo
>  
> > Cc: Adrian Hunter <adrian.hunter@...el.com>
> > Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> > Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
> > Cc: David Ahern <dsahern@...il.com>
> > Cc: Frederic Weisbecker <fweisbec@...il.com>
> > Cc: Ingo Molnar <mingo@...nel.org>
> > Cc: Milian Wolff <mail@...ianw.de>
> > Cc: Namhyung Kim <namhyung@...nel.org>
> > Cc: Paul Mackerras <paulus@...ba.org>
> > Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> > Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> > ---
> >  tools/perf/util/hist.c | 7 -------
> >  tools/perf/util/util.c | 8 ++++++++
> >  2 files changed, 8 insertions(+), 7 deletions(-)
> > 
> > diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
> > index 86569fa3651d..b47595697140 100644
> > --- a/tools/perf/util/hist.c
> > +++ b/tools/perf/util/hist.c
> > @@ -14,13 +14,6 @@ static bool hists__filter_entry_by_thread(struct hists *hists,
> >  static bool hists__filter_entry_by_symbol(struct hists *hists,
> >  					  struct hist_entry *he);
> >  
> > -struct callchain_param	callchain_param = {
> > -	.mode	= CHAIN_GRAPH_REL,
> > -	.min_percent = 0.5,
> > -	.order  = ORDER_CALLEE,
> > -	.key	= CCKEY_FUNCTION
> > -};
> > -
> >  u16 hists__col_len(struct hists *hists, enum hist_column col)
> >  {
> >  	return hists->col_len[col];
> > diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
> > index 24e8d871b74e..d5eab3f3323f 100644
> > --- a/tools/perf/util/util.c
> > +++ b/tools/perf/util/util.c
> > @@ -14,6 +14,14 @@
> >  #include <byteswap.h>
> >  #include <linux/kernel.h>
> >  #include <unistd.h>
> > +#include "callchain.h"
> > +
> > +struct callchain_param	callchain_param = {
> > +	.mode	= CHAIN_GRAPH_REL,
> > +	.min_percent = 0.5,
> > +	.order  = ORDER_CALLEE,
> > +	.key	= CCKEY_FUNCTION
> > +};
> >  
> >  /*
> >   * XXX We need to find a better place for these things...
> > -- 
> > 1.9.3
> > 
> > --
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