linux-kernel - Re: [PATCH] perf util: Display warning when perf report/annotate is missing some libs

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Message-ID: <20180111153028.GB20406@krava>
Date:   Thu, 11 Jan 2018 16:30:28 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Jin Yao <yao.jin@...ux.intel.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH] perf util: Display warning when perf report/annotate is
 missing some libs

On Thu, Jan 11, 2018 at 07:03:06PM +0800, Jin Yao wrote:
> We keep having bug reports that when users build perf on their own,

we already have same warnings during the build

> but they don't install some needed libraries like libelf, libbfd/libibery.

how about saying that in the symbol column,
instead of poluting report's output, like:

	$ perf report --stdio

	# Overhead  Command  Shared Object     Symbol (disabled)
	# ........  .......  ................  ......................

also your change does not affect tui mode

annotation for some reason does not start at all.. could be
little more verbose ;-)

jirka