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From: Andi Kleen <andi@firstfloor.org>
To: mauro.andreolini@gmail.com
Cc: linux-perf-users@vger.kernel.org
Subject: Re: Two questions on perf dwarf callchains
Date: Fri, 17 Jan 2014 12:11:53 -0800	[thread overview]
Message-ID: <87d2jq1i7q.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <1389954083.1125.23.camel@nb-andreolini.mat.unimo.it> (Mauro Andreolini's message of "Fri, 17 Jan 2014 11:21:23 +0100")

Mauro Andreolini <mauro.andreolini@gmail.com> writes:
> file to get perf report to print the function names.
> Is this expected behaviour? How do I get perf to automatically extract
> symbols from compressed files?

Someone would need to write the code to do that I guess.

>
> To which function would 0x7facc1df12a0 match? It does not even seem to
> be in the mapped address space of "ls". I am clueless.

The unwinder got confused. A common cause is incomplete or partially
broken dwarf unwind information. May be a compiler problem.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only

  reply	other threads:[~2014-01-17 20:16 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-17 10:21 Two questions on perf dwarf callchains Mauro Andreolini
2014-01-17 20:11 ` Andi Kleen [this message]
2014-01-17 23:37   ` Mauro Andreolini
2014-01-18  4:42     ` Andi Kleen
2014-01-22 14:40       ` Mauro Andreolini
2014-01-22 17:55         ` Andi Kleen
2014-01-22 18:02           ` Mauro Andreolini
2014-01-29 11:18 ` Jiri Olsa
2014-01-29 15:09   ` Mauro Andreolini
2014-01-30 11:47     ` Jiri Olsa
2014-01-30 14:43       ` Mauro Andreolini
2014-01-30 15:40         ` Jiri Olsa
2014-02-03 14:30           ` Mauro Andreolini
2014-02-04 15:28             ` Mauro Andreolini
2014-02-04 15:35               ` Jiri Olsa
2014-02-04 16:01                 ` Mauro Andreolini
2014-01-29 13:02 ` Mauro Andreolini
  -- strict thread matches above, loose matches on Subject: below --
2014-01-17 23:42 Mauro Andreolini

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