linux-kernel - Re: [PATCH] perf tools: Separate out GTK codes to libperf-gtk.so

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Message-ID: <20130912123156.GA15187@krava.brq.redhat.com>
Date:	Thu, 12 Sep 2013 14:31:56 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Pekka Enberg <penberg@...nel.org>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH] perf tools: Separate out GTK codes to libperf-gtk.so

On Thu, Sep 12, 2013 at 03:34:19PM +0900, Namhyung Kim wrote:
> Separate out GTK codes to a shared object called libperf-gtk.so.  This

SNIP

>  pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
> +void *perf_gtk_handle;
> +
> +#ifdef GTK2_SUPPORT
> +static int setup_gtk_browser(void)
> +{
> +	int (*perf_ui_init)(void);
> +
> +	if (perf_gtk_handle)
> +		return 0;
> +
> +	perf_gtk_handle = dlopen("libperf-gtk.so", RTLD_LAZY);
> +	if (perf_gtk_handle == NULL)
> +		return -1;

shouldn't we try for known installed path here?

  $ perf report --gtk
  GTK browser requested but could not find libperf-gtk.so

otherwise I need to do some ld.conf setup or run it like this:

  LD_LIBRARY_PATH=/home/jolsa/lib64/ ./perf report --gtk
  LD_LIBRARY_PATH=./ ./perf report --gtk

jirka
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