linux-kernel - Re: GCOV doesn't seem to work on ARM with kernel 2.6.35-rc6

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Message-id: <4C4E8C2C.3000903@samsung.com>
Date:	Tue, 27 Jul 2010 09:35:08 +0200
From:	Karol Lewandowski <k.lewandowsk@...sung.com>
To:	Peter Oberparleiter <oberpar@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: GCOV doesn't seem to work on ARM with kernel 2.6.35-rc6

On 07/26/2010 06:57 PM, Peter Oberparleiter wrote:
> Karol Lewandowski wrote:
>> On 07/26/2010 12:32 PM, Karol Lewandowski wrote:
>>> I'm trying to use code coverage measurements with mainline Linux kernel
>>> 2.6.35-rc6 on ARM platform (specifically on Samsung's S5PC110 board).
...
> I just tested gcov support for 2.6.35-rc6 on s390 and it works without
> a problem. My assumption would be that you are using an EABI-GCC to
> compile your kernel. Those compilers name their constructor symbols

Exactly.

> differently than the vanilla GCC so that the whole constructor calling
> mechanism on which the gcov support relies, will fail. If that is
> indeed the case, the following testing patch should solve your
> problem:

Yes, that was the case and your patch indeed solved my problem.

Thank you very much for your help!
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