linux-kernel - Re: Inlined functions in perf report

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Message-ID: <20161221095823.GA19249@sesse.net>
Date:   Wed, 21 Dec 2016 10:58:23 +0100
From:   "Steinar H. Gunderson" <sgunderson@...foot.com>
To:     "Jin, Yao" <yao.jin@...ux.intel.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Milian Wolff <milian.wolff@...b.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Jiri Olsa <jolsa@...nel.org>,
        "Liang, Kan" <kan.liang@...el.com>
Subject: Re: Inlined functions in perf report

On Wed, Dec 21, 2016 at 08:53:33AM +0800, Jin, Yao wrote:
> I just pull my repo with the latest perf/core branch, and apply the patch
> one by one (git am 0001/0002/.../0005), they can be applied. Maybe you have
> to do like that because the mails are probably coming out of order.

OK. I applied everything on top of the branch you suggested, and now it's
compiling. But seemingly I don't have too much success; on a quick check
(perf record -p <pid> -g, perf report --inline) I don't get anything marked
as (inline), but I get these warnings:

BFD: Dwarf Error: found dwarf version '6931', this reader only handles version 2, 3 and 4 information.
BFD: Dwarf Error: found dwarf version '18896', this reader only handles version 2, 3 and 4 information.

and so on for many seemingly random version numbers.

It may have been that the stack traces I happened to check don't actually
have any inlined functions in them (the load was a bit different from what
I've looked at earlier), but the BFD errors are new from what I can see.

/* Steinar */
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