From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BE1C0C433F5 for ; Fri, 8 Oct 2021 19:00:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9C4426101A for ; Fri, 8 Oct 2021 19:00:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231433AbhJHTC3 (ORCPT ); Fri, 8 Oct 2021 15:02:29 -0400 Received: from mail.kernel.org ([198.145.29.99]:45872 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231312AbhJHTC2 (ORCPT ); Fri, 8 Oct 2021 15:02:28 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6BB5360FE8; Fri, 8 Oct 2021 19:00:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1633719632; bh=X2+TA7D/QVQQ3sstjV8Bo85mIJKFkSjBOXOLiXSWzZE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BPbxW1Z+XZF5OG7GpRFqxh4JOAvuLoGL/hnbOpxZdQOkl5mHTKG6Ap5Zy3vrL9v3y GbkoH52HrxXMi4XirU2usdotE4A659Xleq/rbGzXDjSzsg4sLdAoijy3KeD8RJphVQ hOsqzKFmu5xJ8t13RPYPmLOptZ++kjibZ7FKPcfpOqtakaU3/B6n5J6PmXsNwIRy4H 8zlbWuCkPOUknhfTf8x6aIAG4+Hw2x+8qKa2/rmsZWKwKY3oHuv3PHQxvpoRiSW0mq n2PSPPXOJrqkkT1kJ/KSmM1R4cZuXUJ5BonT2V2ITyXIFLcoviRnYoUjwbTJUOD2qI mu+RGbSoawX4w== Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 12191410A1; Fri, 8 Oct 2021 16:00:30 -0300 (-03) Date: Fri, 8 Oct 2021 16:00:30 -0300 From: Arnaldo Carvalho de Melo To: kajoljain Cc: James Clark , john.garry@huawei.com, ak@linux.intel.com, linux-perf-users@vger.kernel.org, Nick.Forrington@arm.com, Andrew.Kilroy@arm.com, Will Deacon , Mathieu Poirier , Leo Yan , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] perf tools: Enable strict JSON parsing Message-ID: References: <20211007110543.564963-1-james.clark@arm.com> <5947c093-cff9-f70e-af20-75bc053edf5f@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5947c093-cff9-f70e-af20-75bc053edf5f@linux.ibm.com> X-Url: http://acmel.wordpress.com Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Em Fri, Oct 08, 2021 at 04:56:55PM +0530, kajoljain escreveu: > > > On 10/8/21 3:32 PM, James Clark wrote: > > > > > > On 08/10/2021 08:43, kajoljain wrote: > >> > >> > >> 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@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 > > > > Hi Kajol, > > > > A trailing comma was fixed in this file 3 weeks ago at b8b350a. Can you > > confirm if you have updated to get this commit on perf core? > > > > Alternately you could pull from my branch above which is up to date enough > > to include it. > > Hi James, > Thanks for pointing it. Not getting build issue now. > > > > The file is in pmu-events/arch/test/ so I would expect it to fail on all platforms. > > > >> 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. > > > > I can add a character number with the following fix if you think that would > > be good enough? A line number might be a bigger change and involve keeping > > track of newline characters. > > Sure. I think then we can skip this change. Not sure if character > number will be helpful. > > Patch-set looks good to me. > > Reviewed-by Kajol Jain Applied ok as-is to my perf/core branch, applied and added your Reviewed-by, thanks. - Arnaldo > Thanks, > Kajol Jain > > > > > diff --git a/tools/perf/pmu-events/json.c b/tools/perf/pmu-events/json.c > > index 0544398d6e2d..41a14e1543bf 100644 > > --- a/tools/perf/pmu-events/json.c > > +++ b/tools/perf/pmu-events/json.c > > @@ -99,7 +99,7 @@ jsmntok_t *parse_json(const char *fn, char **map, size_t *size, int *len) > > res = jsmn_parse(&parser, *map, *size, tokens, > > sz / sizeof(jsmntok_t)); > > if (res != JSMN_SUCCESS) { > > - pr_err("%s: json error %s\n", fn, jsmn_strerror(res)); > > + pr_err("%s: json error at character %u '%s'\n", fn, parser.pos, jsmn_strerror(res)); > > goto error_free; > > } > > if (len) > > > > > > It prints this for the same error you have above> > > pmu-events/arch/test/test_soc/sys/uncore.json: json error at character 213 'Invalid character inside JSON string' > > > > Although funnily enough after re-introducing that extra comma it doesn't fail the build for me, > > it just prints the error message. But I may have noticed some dependency tracking issues around > > the json files. > > > > James > > -- - Arnaldo