7aa8749979
This check can be done with uname which is more portable. At the same time re-arrange it into a standard if statement so that it's more readable. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Spoorthy S <spoorts2@in.ibm.com> Link: https://lore.kernel.org/r/20240410103458.813656-5-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
55 lines
1.2 KiB
Bash
Executable file
55 lines
1.2 KiB
Bash
Executable file
#!/bin/sh
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# Check Arm64 callgraphs are complete in fp mode
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# SPDX-License-Identifier: GPL-2.0
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shelldir=$(dirname "$0")
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# shellcheck source=lib/perf_has_symbol.sh
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. "${shelldir}"/lib/perf_has_symbol.sh
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if [ "$(uname -m)" != "aarch64" ]; then
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exit 2
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fi
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if perf version --build-options | grep HAVE_DWARF_UNWIND_SUPPORT | grep -q OFF
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then
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echo "Skipping, no dwarf unwind support"
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exit 2
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fi
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skip_test_missing_symbol leafloop
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PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
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TEST_PROGRAM="perf test -w leafloop"
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cleanup_files()
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{
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rm -f "$PERF_DATA"
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}
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trap cleanup_files EXIT TERM INT
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# Add a 1 second delay to skip samples that are not in the leaf() function
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# shellcheck disable=SC2086
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perf record -o "$PERF_DATA" --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null &
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PID=$!
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echo " + Recording (PID=$PID)..."
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sleep 2
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echo " + Stopping perf-record..."
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kill $PID
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wait $PID
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# expected perf-script output:
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#
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# program
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# 728 leaf
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# 753 parent
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# 76c leafloop
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# ...
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perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4
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perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4 | \
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awk '{ if ($2 != "") sym[i++] = $2 } END { if (sym[0] != "leaf" ||
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sym[1] != "parent" ||
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sym[2] != "leafloop") exit 1 }'
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