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authorJames Clark <james.clark@linaro.org>2025-08-13 16:38:51 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2025-10-01 21:31:49 +0300
commit9f0fa213790e3633d37e981386da99149573135b (patch)
tree7731bde94ae25719c245a3e6423661b6e17ebeea /tools/perf/scripts/python/flamegraph.py
parent11e59335b0d1c4bc259ee6f0533e04c4b3a9f1dd (diff)
downloadlinux-9f0fa213790e3633d37e981386da99149573135b.tar.xz
perf test: Extend branch stack sampling test for Arm64 BRBE
BRBE emits IRQ and ERET branches for branching and returning from trapped instructions. Add a test that loops on a trapped instruction (MRS - Read special register) for this. Extend the expected 'any_call' branches to include FAULT_DATA and FAULT_INST as these are emitted by BRBE. Reviewed-by: Ian Rogers <irogers@google.com> Co-developed-by: German Gomez <german.gomez@arm.com> Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: James Clark <james.clark@linaro.org> Cc: Adam Young <admiyo@os.amperecomputing.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
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