From: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
To: Yuan Pengfei <coolypf@qq.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] gcov: fix memory allocation problem in gcov_info_dup
Date: Wed, 19 Feb 2014 09:52:52 +0100 [thread overview]
Message-ID: <530470E4.2040104@linux.vnet.ibm.com> (raw)
In-Reply-To: <tencent_074552B42B4D25D2329613D8@qq.com>
On 19.02.2014 08:06, Yuan Pengfei wrote:
> From: Yuan Pengfei <coolypf@qq.com>
>
> If -fprofile-values option is used, ctr->num and sci_ptr->num
> may be zero, resulting in zero size and cv_size, which will
> cause ENOMEM when opening gcov data files in debugfs.
> Signed-off-by: Yuan Pengfei <coolypf@qq.com>
I'm unaware of any user of -fprofile-values in the kernel. Are you
trying to extend gcov-kernel to also support -fprofile-values? I would
expect that additional changes to the .gcda file creation logic are
required to fully support this GCC option.
Regards,
Peter Oberparleiter
--
Peter Oberparleiter
Linux on System z Development - IBM Germany
next prev parent reply other threads:[~2014-02-19 8:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-19 7:06 [PATCH] gcov: fix memory allocation problem in gcov_info_dup Yuan Pengfei
2014-02-19 8:52 ` Peter Oberparleiter [this message]
2014-02-19 10:38 ` Yuan Pengfei
2014-02-20 8:52 ` Peter Oberparleiter
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