linux-kernel - Re: [PATCH v3 0/7] perf: cs-etm: Coresight decode and disassembly improvements

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Message-ID: <ddc6c1d0-a88a-46d2-93d4-f9f10f6aa254@linaro.org>
Date: Fri, 20 Sep 2024 09:14:13 +0100
From: James Clark <james.clark@...aro.org>
To: Ganapatrao Kulkarni <gankulkarni@...amperecomputing.com>,
 Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
 Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>,
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
 Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
 Adrian Hunter <adrian.hunter@...el.com>,
 "Liang, Kan" <kan.liang@...ux.intel.com>,
 Suzuki K Poulose <suzuki.poulose@....com>, Mike Leach
 <mike.leach@...aro.org>, John Garry <john.g.garry@...cle.com>,
 Will Deacon <will@...nel.org>, Leo Yan <leo.yan@...ux.dev>,
 Ben Gainey <ben.gainey@....com>, Ruidong Tian
 <tianruidong@...ux.alibaba.com>, Benjamin Gray <bgray@...ux.ibm.com>,
 Mathieu Poirier <mathieu.poirier@...aro.org>, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org,
 Ilkka Koskinen <ilkka@...amperecomputing.com>,
 linux-perf-users@...r.kernel.org, coresight@...ts.linaro.org,
 leo.yan@....com, scclevenger@...amperecomputing.com
Subject: Re: [PATCH v3 0/7] perf: cs-etm: Coresight decode and disassembly
 improvements



On 18/09/2024 12:23 pm, Ganapatrao Kulkarni wrote:
> 
> Hi James,
> 
> On 16-09-2024 07:27 pm, James Clark wrote:
>> A set of changes that came out of the issues reported here [1].
>>
>>   * First 2 patches fix a decode bug in Perf and add support for new
>>     consistency checks in OpenCSD
>>   * The remaining ones make the disassembly script easier to test
>>     and use. This also involves adding a new Python binding to
>>     Perf to get a config value (perf_config_get())
>>
>> [1]: 
>> https://lore.kernel.org/linux-arm-kernel/20240719092619.274730-1-gankulkarni@os.amperecomputing.com/
>>
> 
> Tried this series with below commands and issue is not seen as reported 
> in [1].
> 
> record:
> timeout 8s ./perf record -e cs_etm// -C 1 -o kcore --kcore dd 
> if=/dev/zero of=/dev/null
> 
> decode:
> ./perf script -i ./kcore -s scripts/python/arm-cs-trace-disasm.py -- -d 
> objdump -k kcore/kcore_dir/kcore
> 
> ./perf script -i ./kcore -s scripts/python/arm-cs-trace-disasm.py -F 
> cpu,event,ip,addr,sym -- -d objdump -k kcore/kcore_dir/kcore
> 
> Feel free to add for 1/7 and 2/7.
> Tested-by: Ganapatrao Kulkarni <gankulkarni@...amperecomputing.com>
> 

Thanks for testing!