linux-kernel - Re: [PATCH v8 1/3] perf: cs-etm: Move mapping of Trace ID and cpu into helper function

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Date:   Thu, 30 Mar 2023 11:55:17 +0100
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     Leo Yan <leo.yan@...aro.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Mike Leach <mike.leach@...aro.org>,
        linux-perf-users@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, coresight@...ts.linaro.org,
        linux-kernel@...r.kernel.org, peterz@...radead.org,
        mingo@...hat.com, will@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, gankulkarni@...amperecomputing.com,
        darren@...amperecomputing.com, James Clark <james.clark@....com>
Subject: Re: [PATCH v8 1/3] perf: cs-etm: Move mapping of Trace ID and cpu
 into helper function

On 30/03/2023 04:13, Leo Yan wrote:
> On Wed, Mar 29, 2023 at 07:14:52PM -0300, Arnaldo Carvalho de Melo wrote:
> 
> [...]
> 
>>> Not here, I'll check after a call:
>>>
>>>    50     9.90 ubuntu:18.04-x-arm            : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
>>>      arch/arm/util/cs-etm.c: In function 'cs_etm_save_ete_header':
>>>      arch/arm/util/cs-etm.c:720:29: error: implicit declaration of function 'coresight_get_trace_id' [-Werror=implicit-function-declaration]
>>>        data[CS_ETE_TRCTRACEIDR] = coresight_get_trace_id(cpu);
>>>                                   ^~~~~~~~~~~~~~~~~~~~~~
>>
>> This function was removed in:
>>
>> Author: Mike Leach <mike.leach@...aro.org>
>> Date:   Wed Mar 29 12:14:21 2023 +0100
>>
>>      perf cs-etm: Update record event to use new Trace ID protocol
>>
>>      Trace IDs are now dynamically allocated.
>>
>> I'm removing this series from perf-tools-next, please address this issue
>> and send a v9.
> 
> I can reproduce this building failure.  I am curious for how to verify
> building for patch wise, the link [1] gives me some hints and below
> command works for me:
> 
>    $ git rebase -i --exec "make -C tools/perf clean && \
>      make -C tools/perf VF=1 DEBUG=1 CORESIGHT=1 && \
>      make -C tools/perf clean && \
>      make -C tools/perf VF=1 DEBUG=1" HEAD~3

Looks like perf-tools-next has some changes that has not reflected 
elsewhere. The ts_source patches are queued there, which is causing
the above build failure.

Mike,

Are you able to rebase your patches on perf-tools-next branch ?

Kind regards
Suzuki

> 
> Thanks,
> Leo
> 
> [1] https://stackoverflow.com/questions/26983700/git-run-shell-command-for-each-commit