From: German Gomez <german.gomez@arm.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
acme@kernel.org
Cc: German Gomez <german.gomez@arm.com>,
John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Leo Yan <leo.yan@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>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/1] perf arm-spe: Inject SPE samples in perf-inject
Date: Fri, 5 Nov 2021 10:41:29 +0000 [thread overview]
Message-ID: <20211105104130.28186-1-german.gomez@arm.com> (raw)
perf-inject is currently not working for Arm SPE. When you try to run
perf-inject and perf-report with a perf.data file that contains SPE
traces, the tool reports a "Bad address" error:
# ./perf record -e arm_spe_0/ts_enable=1,store_filter=1,branch_filter=1,load_filter=1/ -a -- sleep 1
# ./perf inject -i perf.data -o perf.inject.data --itrace
# ./perf report -i perf.inject.data --stdio
0x42c00 [0x8]: failed to process type: 9 [Bad address]
Error:
failed to process sample
As far as I know, the issue was first spotted in [1], but perf-inject
was not yet injecting the samples. This patch does something similar to
what cs_etm does for injecting the samples [2], but for SPE.
[1] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210412091006.468557-1-leo.yan@linaro.org/#24117339
[2] https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/tree/tools/perf/util/cs-etm.c?h=perf/core&id=133fe2e617e48ca0948983329f43877064ffda3e#n1196
German Gomez (1):
perf arm-spe: Inject SPE samples in perf-inject
tools/perf/util/arm-spe.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
--
2.25.1
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next reply other threads:[~2021-11-05 10:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-05 10:41 German Gomez [this message]
2021-11-05 10:41 ` [PATCH 1/1] perf arm-spe: Inject SPE samples in perf-inject German Gomez
2021-11-08 20:39 ` James Clark
2021-11-17 15:27 ` Arnaldo Carvalho de Melo
2021-11-17 15:29 ` Arnaldo Carvalho de Melo
2021-11-17 16:27 ` German Gomez
2021-11-17 17:24 ` Arnaldo Carvalho de Melo
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