Commit f570289e authored by James Clark's avatar James Clark Committed by Zhong Jinghua
Browse files

perf tools: Add flag for tracking warnings of missing DSOs

mainline inclusion
from mainline-v5.14-rc4
commit 11552049
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I636PS
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=115520495015591d6a98a5965644cfffd218e399



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Auxtrace support may need DSOs for decoding (for example Arm Coresight).
If one of these is missing it would make sense to warn once for each one
that's missing, but not flood the output with every address as there
could be thousands of lookups.

This flag will allow tracking whether a warning was shown for each DSO.

Signed-off-by: default avatarJames Clark <james.clark@arm.com>
Reviewed-by: default avatarLeo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210729155805.2830-5-james.clark@arm.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarJunhao He <hejunhao3@huawei.com>
parent abc2922b
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