2023-08-30 17:31:07 +02:00
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#!/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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lscpu | grep -q "aarch64" || exit 2
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PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
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TEST_PROGRAM="perf test -w leafloop"
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cleanup_files()
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{
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2023-10-24 12:59:35 +02:00
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rm -f "$PERF_DATA"
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2023-08-30 17:31:07 +02:00
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}
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2023-10-24 12:59:35 +02:00
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trap cleanup_files EXIT TERM INT
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2023-08-30 17:31:07 +02:00
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# Add a 1 second delay to skip samples that are not in the leaf() function
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2023-10-24 12:59:35 +02:00
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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 -- $TEST_PROGRAM 2> /dev/null &
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2023-08-30 17:31:07 +02:00
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PID=$!
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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 $PID
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# expected perf-script output:
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#
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# program
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# 728 leaf
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# 753 parent
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# 76c leafloop
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# ...
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2023-10-24 12:59:35 +02:00
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perf script -i "$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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2023-08-30 17:31:07 +02:00
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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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