linux-kernel - Re: [PATCH 2/2] perf report: Add gcc option '-rdynamic' to define symbol callchain

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Message-ID: <20160428152630.GB3386@kernel.org>
Date:	Thu, 28 Apr 2016 12:26:30 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Kyeongmin Cho <korea.drzix@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Wang Nan <wangnan0@...wei.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH 2/2] perf report: Add gcc option '-rdynamic' to define
 symbol callchain_param

Em Thu, Apr 28, 2016 at 04:12:16PM +0200, Jiri Olsa escreveu:
> On Thu, Apr 28, 2016 at 10:00:01PM +0900, Kyeongmin Cho wrote:
> > As libperf-gtk.so cannot find out undefined symbol 'callchain_param',
> > '-rdynamic' option is needed to add the symbol to the dynamic symbol
> > table.
> 
> hi,
> following command seems to work for me:
>   $ perf report --gtk
> 
> could you please specify what's failing for you?

I haven't tested this one, but I thought it was legit, as
callchain_param is used in more places now, so perhaps you haven't
updated the gtk.so thing that gets created with the perf gtk UI?

- Arnaldo