From: Mathieu Poirier <mathieu.poirier@linaro.org> To: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: James Clark <james.clark@arm.com>, coresight@lists.linaro.org, linux-perf-users@vger.kernel.org, leo.yan@linaro.org, suzuki.poulose@arm.com, mike.leach@linaro.org, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC PATCH 6/6] perf cs-etm: Add warnings for missing DSOs Date: Mon, 2 Aug 2021 11:03:07 -0600 [thread overview] Message-ID: <20210802170307.GA3050918@p14s> (raw) In-Reply-To: <YQgGjlWtbaNApkp6@kernel.org> On Mon, Aug 02, 2021 at 11:51:58AM -0300, Arnaldo Carvalho de Melo wrote: > Em Thu, Jul 29, 2021 at 04:58:05PM +0100, James Clark escreveu: > > Currently decode will silently fail if no binary data is available for > > the decode. This is made worse if only partial data is available because > > the decode will appear to work, but any trace from that missing DSO will > > silently not be generated. > > > > Add a UI popup once if there is any data missing, and then warn in the > > bottom left for each individual DSO that's missing. > > Looks ok to me (the last 3 patches in this series, the rest I applied > already), can I get some Acked-by/Reviewed-by from the CoreSight people? > I have a substantial backlog of patches to go through and I will be away for the next two weeks. As such it will be some time before I get to review this set. Regards, Mathieu > Thanks, > > - Arnaldo > > > Signed-off-by: James Clark <james.clark@arm.com> > > --- > > tools/perf/util/cs-etm.c | 10 +++++++++- > > 1 file changed, 9 insertions(+), 1 deletion(-) > > > > diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c > > index 32ad92d3e454..e6851260d059 100644 > > --- a/tools/perf/util/cs-etm.c > > +++ b/tools/perf/util/cs-etm.c > > @@ -746,8 +746,16 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u8 trace_chan_id, > > > > len = dso__data_read_offset(al.map->dso, machine, offset, buffer, size); > > > > - if (len <= 0) > > + if (len <= 0) { > > + ui__warning_once("CS ETM Trace: Missing DSO. Use 'perf archive' to export data from the traced system.\n"); > > + if (!al.map->dso->auxtrace_warned) { > > + pr_err("CS ETM Trace: Debug data not found for address %#"PRIx64" in %s\n", > > + address, > > + al.map->dso->long_name ? al.map->dso->long_name : "Unknown"); > > + al.map->dso->auxtrace_warned = true; > > + } > > return 0; > > + } > > > > return len; > > } > > -- > > 2.28.0 > > > > -- > > - Arnaldo
WARNING: multiple messages have this Message-ID (diff)
From: Mathieu Poirier <mathieu.poirier@linaro.org> To: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: James Clark <james.clark@arm.com>, coresight@lists.linaro.org, linux-perf-users@vger.kernel.org, leo.yan@linaro.org, suzuki.poulose@arm.com, mike.leach@linaro.org, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC PATCH 6/6] perf cs-etm: Add warnings for missing DSOs Date: Mon, 2 Aug 2021 11:03:07 -0600 [thread overview] Message-ID: <20210802170307.GA3050918@p14s> (raw) In-Reply-To: <YQgGjlWtbaNApkp6@kernel.org> On Mon, Aug 02, 2021 at 11:51:58AM -0300, Arnaldo Carvalho de Melo wrote: > Em Thu, Jul 29, 2021 at 04:58:05PM +0100, James Clark escreveu: > > Currently decode will silently fail if no binary data is available for > > the decode. This is made worse if only partial data is available because > > the decode will appear to work, but any trace from that missing DSO will > > silently not be generated. > > > > Add a UI popup once if there is any data missing, and then warn in the > > bottom left for each individual DSO that's missing. > > Looks ok to me (the last 3 patches in this series, the rest I applied > already), can I get some Acked-by/Reviewed-by from the CoreSight people? > I have a substantial backlog of patches to go through and I will be away for the next two weeks. As such it will be some time before I get to review this set. Regards, Mathieu > Thanks, > > - Arnaldo > > > Signed-off-by: James Clark <james.clark@arm.com> > > --- > > tools/perf/util/cs-etm.c | 10 +++++++++- > > 1 file changed, 9 insertions(+), 1 deletion(-) > > > > diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c > > index 32ad92d3e454..e6851260d059 100644 > > --- a/tools/perf/util/cs-etm.c > > +++ b/tools/perf/util/cs-etm.c > > @@ -746,8 +746,16 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u8 trace_chan_id, > > > > len = dso__data_read_offset(al.map->dso, machine, offset, buffer, size); > > > > - if (len <= 0) > > + if (len <= 0) { > > + ui__warning_once("CS ETM Trace: Missing DSO. Use 'perf archive' to export data from the traced system.\n"); > > + if (!al.map->dso->auxtrace_warned) { > > + pr_err("CS ETM Trace: Debug data not found for address %#"PRIx64" in %s\n", > > + address, > > + al.map->dso->long_name ? al.map->dso->long_name : "Unknown"); > > + al.map->dso->auxtrace_warned = true; > > + } > > return 0; > > + } > > > > return len; > > } > > -- > > 2.28.0 > > > > -- > > - Arnaldo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-08-02 17:03 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-29 15:57 [RFC PATCH 0/6] perf tools: Warning fixes James Clark 2021-07-29 15:57 ` James Clark 2021-07-29 15:58 ` [RFC PATCH 1/6] perf tools: Add WARN_ONCE equivalent for UI warnings James Clark 2021-07-29 15:58 ` James Clark 2021-08-02 14:44 ` Arnaldo Carvalho de Melo 2021-08-02 14:44 ` Arnaldo Carvalho de Melo 2021-07-29 15:58 ` [RFC PATCH 2/6] perf tools: Re-add annotate_warned functionality James Clark 2021-07-29 15:58 ` James Clark 2021-07-29 15:58 ` [RFC PATCH 3/6] perf tools: Add disassembly warnings for annotate --stdio James Clark 2021-07-29 15:58 ` James Clark 2021-07-29 15:58 ` [RFC PATCH 4/6] perf tools: Add flag for tracking warnings of missing DSOs James Clark 2021-07-29 15:58 ` James Clark 2021-07-29 15:58 ` [RFC PATCH 5/6] perf cs-etm: Improve Coresight zero timestamp warning James Clark 2021-07-29 15:58 ` James Clark 2021-08-02 15:17 ` Leo Yan 2021-08-02 15:17 ` Leo Yan 2021-08-03 13:25 ` Arnaldo Carvalho de Melo 2021-08-03 13:25 ` Arnaldo Carvalho de Melo 2021-07-29 15:58 ` [RFC PATCH 6/6] perf cs-etm: Add warnings for missing DSOs James Clark 2021-07-29 15:58 ` James Clark 2021-08-02 14:51 ` Arnaldo Carvalho de Melo 2021-08-02 14:51 ` Arnaldo Carvalho de Melo 2021-08-02 17:03 ` Mathieu Poirier [this message] 2021-08-02 17:03 ` Mathieu Poirier 2021-08-03 8:06 ` Mike Leach 2021-08-03 8:06 ` Mike Leach 2021-08-02 15:41 ` Leo Yan 2021-08-02 15:41 ` Leo Yan 2021-08-03 13:24 ` Arnaldo Carvalho de Melo 2021-08-03 13:24 ` Arnaldo Carvalho de Melo 2021-08-03 14:01 ` Leo Yan 2021-08-03 14:01 ` Leo Yan 2021-08-05 12:59 ` James Clark 2021-08-05 12:59 ` James Clark 2021-08-06 18:36 ` Arnaldo Carvalho de Melo 2021-08-06 18:36 ` Arnaldo Carvalho de Melo
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