linux-kernel - Re: [PATCH v2] perf probe: Fix failure to probe events on arm

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Message-ID: <20150619210832.GB28405@kernel.org>
Date:	Fri, 19 Jun 2015 18:08:32 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	He Kuang <hekuang@...wei.com>
Cc:	a.p.zijlstra@...llo.nl, mingo@...hat.com,
	masami.hiramatsu.pt@...achi.com, namhyung@...nel.org,
	wangnan0@...wei.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] perf probe: Fix failure to probe events on arm

Em Thu, Jun 18, 2015 at 02:49:10AM +0000, He Kuang escreveu:
> Fix failure to probe events on arm, problem is introduced by commit
> 5a51fcd1f30c ("perf probe: Skip kernel symbols which is out of
> .text"). For some architectures, label '_etext' is not in the .text
> section(in .notes section for arm/arm64). Label out of .text section is
> not loaded as symbols and we got a zero value when look up its address,
> which causes all events be wrongly skiped.
> 
> This patch skip checking text address range when failed to get the
> address of '_etext' and fixes the problem.

Masami, since you guys discussed this patch, can I have your Acked-by?

- Arnaldo
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