linux-kernel - Re: [BUG] perf: bogus correlation of kernel symbols

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Message-ID: <20110513090129.GG13647@elte.hu>
Date:	Fri, 13 May 2011 11:01:29 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	Dave Jones <davej@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] perf: bogus correlation of kernel symbols


* Stephane Eranian <eranian@...gle.com> wrote:

> Good point about System.map! Even if /proc/kallsyms contains zero addresses, 
> I can still get them from /boot/System.map which is readable by everyone, I 
> think. It does not contain the modules addresses, but you have the core 
> functions, unless I am somehow mistaken.

Yes. I pointed out this and some other details a couple of months ago, for a 
similarly motivated /proc/kallsyms obfuscation patch:

  http://lkml.org/lkml/2010/11/4/113
  http://lkml.org/lkml/2010/11/4/145

Thanks,

	Ingo
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