linux-kernel - Re: [RFC PATCH 3/3] objtool/mcount: Add powerpc specific functions

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Message-ID: <a688b641-a8ef-8e6b-4f94-da5edd1c6943@csgroup.eu>
Date:   Mon, 21 Mar 2022 07:56:41 +0000
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Sathvika Vasireddy <sv@...ux.ibm.com>
CC:     "aik@...abs.ru" <aik@...abs.ru>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "jpoimboe@...hat.com" <jpoimboe@...hat.com>,
        "naveen.n.rao@...ux.vnet.ibm.com" <naveen.n.rao@...ux.vnet.ibm.com>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [RFC PATCH 3/3] objtool/mcount: Add powerpc specific functions



Le 21/03/2022 à 03:27, Michael Ellerman a écrit :
> Christophe Leroy <christophe.leroy@...roup.eu> writes:
>> Le 18/03/2022 à 13:26, Peter Zijlstra a écrit :
>>> On Fri, Mar 18, 2022 at 04:21:40PM +0530, Sathvika Vasireddy wrote:
>>>> This patch adds powerpc specific functions required for
>>>> 'objtool mcount' to work, and enables mcount for ppc.
>>>
>>> I would love to see more objtool enablement for Power :-)
>>
>> I have not received this series and I can't see it on powerpc patchwork
>> either (https://patchwork.ozlabs.org/project/linuxppc-dev/list/)
>>
>> Did you send it to linuxppc-dev list ? If not can you resend it there ?
> 
> It is there, might have been delayed?
> 
> http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=291129
> 
> There are some CI failures.
> 

On PPC32 I get :

[    0.000000] ftrace: No functions to be traced?

Without this series I get:

[    0.000000] ftrace: allocating 22508 entries in 17 pages
[    0.000000] ftrace: allocated 17 pages with 2 groups


Christophe