linux-kernel - Re: [PATCH] gcov: add support for GCC 14

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Message-ID: <e858cafd-27cc-4ae0-af8a-0ed71dca1fa8@linux.ibm.com>
Date: Wed, 12 Jun 2024 11:14:22 +0200
From: Peter Oberparleiter <oberpar@...ux.ibm.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
        Chuck Lever <chuck.lever@...cle.com>
Cc: linux-kernel@...r.kernel.org, allison.henderson@...cle.com
Subject: Re: [PATCH] gcov: add support for GCC 14

On 10.06.2024 19:45, Andrew Morton wrote:
> On Mon, 10 Jun 2024 09:41:19 -0400 Chuck Lever <chuck.lever@...cle.com> wrote:
>> On Mon, Jun 10, 2024 at 11:27:43AM +0200, Peter Oberparleiter wrote:
>>> Using gcov on kernels compiled with GCC 14 results in truncated 16-byte
>>> long .gcda files with no usable data. To fix this, update GCOV_COUNTERS
>>> to match the value defined by GCC 14.
>>>
>>> Tested with GCC versions 14.1.0 and 13.2.0.
>>>
>>
>> ...
>>
>> Tested-by: Chuck Lever <chuck.lever@...cle.com>
> 
> I assume this problem will affect people who use gcc-14 to compile
> older kernels, so I have added cc:stable to this patch.

Yes, adding this fix also to stable kernels makes sense.


-- 
Peter Oberparleiter
Linux on IBM Z Development - IBM Germany R&D