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

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Date:	Mon, 26 Jul 2010 12:37:08 +0200
From:	Karol Lewandowski <k.lewandowsk@...sung.com>
To:	Karol Lewandowski <k.lewandowsk@...sung.com>
Cc:	Peter Oberparleiter <oberpar@...ux.vnet.ibm.com>,
	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 12:32 PM, Karol Lewandowski wrote:
> Hello,
>
> 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've enabled following in my .config:
>
> CONFIG_GCOV_KERNEL=y
> CONFIG_DEBUG_FS=y
>
> After successful boot I see no gcov-related files other than
> /sys/kernel/debug/gcov/reset.
>
>  From my knowledge (and from my previous experience with out-of-tree
> gcov patchset) whole directory structure shall be created along with
> .gcda files and various symlinks.

I forgot to add that I've added "GCOV_PROFILE := y" to at least

   fs/Makefile
   kernel/Makefile

and few others.  Thus, I expect to find something more than just
./reset file.
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