linux-kernel - Re: [PATCH 0/3] perf tools: Enable strict JSON parsing

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Date:   Fri, 8 Oct 2021 13:13:52 +0530
From:   kajoljain <kjain@...ux.ibm.com>
To:     James Clark <james.clark@....com>, acme@...nel.org,
        john.garry@...wei.com, ak@...ux.intel.com,
        linux-perf-users@...r.kernel.org
Cc:     Nick.Forrington@....com, Andrew.Kilroy@....com,
        Will Deacon <will@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] perf tools: Enable strict JSON parsing



On 10/7/21 4:35 PM, James Clark wrote:
> After a discussion on "[PATCH 1/4] perf vendor events: Syntax corrections in Neoverse N1 json",
> John Garry suggested that we can just modify the parser to make it more strict. Hopefully this will
> remove the need to apply any future JSON comma fixup commits.
> 
> Applies on top of "[PATCH v2 1/3] perf vendor events: Syntax corrections in Neoverse N1 json" on
> perf/core.
> 
> Also available at:
>   git clone --branch james-json-parse-fix git@....gitlab.arm.com:linux-arm/linux-jc.git

Hi James,
   Do we have any dependency patches on top of this patch series. I am
reviewing and testing it, but in both powerpc and x86 system I am
getting build issue. Not sure if I am missing something.

I am trying your changes on top of upstream perf.

pmu-events/arch/test/test_soc/sys/uncore.json: json error Invalid
character inside JSON string
make[3]: *** [pmu-events/Build:18: pmu-events/pmu-events.c] Error 1
make[3]: *** Deleting file 'pmu-events/pmu-events.c'
make[2]: *** [Makefile.perf:667: pmu-events/pmu-events-in.o] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile.perf:238: sub-make] Error 2
make: *** [Makefile:70: all] Error 2

Also, Is it possible to add line number along with file name while
showing this error `json error Invalid character inside JSON string`.
It might make it easy to fix.

Thanks,
Kajol Jain

> 
> James Clark (3):
>   perf vendor-events: Fix all remaining invalid JSON files
>   perf tools: Make the JSON parser more conformant when in strict mode
>   perf tools: Enable strict JSON parsing
> 
>  .../arch/arm64/ampere/emag/bus.json           |  2 +-
>  .../arch/arm64/ampere/emag/cache.json         | 20 ++++-----
>  .../arch/arm64/ampere/emag/clock.json         |  2 +-
>  .../arch/arm64/ampere/emag/exception.json     |  4 +-
>  .../arch/arm64/ampere/emag/instruction.json   | 10 ++---
>  .../arch/arm64/ampere/emag/memory.json        |  4 +-
>  .../arch/arm64/hisilicon/hip08/metrics.json   |  2 +-
>  .../pmu-events/arch/nds32/n13/atcpmu.json     |  2 +-
>  .../pmu-events/arch/s390/cf_z10/basic.json    |  2 +-
>  .../pmu-events/arch/s390/cf_z10/crypto.json   |  2 +-
>  .../pmu-events/arch/s390/cf_z10/extended.json |  2 +-
>  .../pmu-events/arch/s390/cf_z13/basic.json    |  2 +-
>  .../pmu-events/arch/s390/cf_z13/crypto.json   |  2 +-
>  .../pmu-events/arch/s390/cf_z13/extended.json |  2 +-
>  .../pmu-events/arch/s390/cf_z14/basic.json    |  2 +-
>  .../pmu-events/arch/s390/cf_z14/crypto.json   |  2 +-
>  .../pmu-events/arch/s390/cf_z14/extended.json |  2 +-
>  .../pmu-events/arch/s390/cf_z15/basic.json    |  2 +-
>  .../pmu-events/arch/s390/cf_z15/crypto.json   |  2 +-
>  .../pmu-events/arch/s390/cf_z15/crypto6.json  |  2 +-
>  .../pmu-events/arch/s390/cf_z15/extended.json |  2 +-
>  .../pmu-events/arch/s390/cf_z196/basic.json   |  2 +-
>  .../pmu-events/arch/s390/cf_z196/crypto.json  |  2 +-
>  .../arch/s390/cf_z196/extended.json           |  2 +-
>  .../pmu-events/arch/s390/cf_zec12/basic.json  |  2 +-
>  .../pmu-events/arch/s390/cf_zec12/crypto.json |  2 +-
>  .../arch/s390/cf_zec12/extended.json          |  2 +-
>  .../arch/test/test_soc/cpu/uncore.json        |  2 +-
>  .../arch/x86/icelakex/icx-metrics.json        |  2 +-
>  tools/perf/pmu-events/jsmn.c                  | 43 ++++++++++++++++++-
>  30 files changed, 85 insertions(+), 46 deletions(-)
>