1#!/bin/sh 2# Check Arm64 callgraphs are complete in fp mode 3# SPDX-License-Identifier: GPL-2.0 4 5shelldir=$(dirname "$0") 6# shellcheck source=lib/perf_has_symbol.sh 7. "${shelldir}"/lib/perf_has_symbol.sh 8 9lscpu | grep -q "aarch64" || exit 2 10 11skip_test_missing_symbol leafloop 12 13PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX) 14TEST_PROGRAM="perf test -w leafloop" 15 16cleanup_files() 17{ 18 rm -f "$PERF_DATA" 19} 20 21trap cleanup_files EXIT TERM INT 22 23# Add a 1 second delay to skip samples that are not in the leaf() function 24# shellcheck disable=SC2086 25perf record -o "$PERF_DATA" --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null & 26PID=$! 27 28echo " + Recording (PID=$PID)..." 29sleep 2 30echo " + Stopping perf-record..." 31 32kill $PID 33wait $PID 34 35# expected perf-script output: 36# 37# program 38# 728 leaf 39# 753 parent 40# 76c leafloop 41# ... 42 43perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4 44perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4 | \ 45 awk '{ if ($2 != "") sym[i++] = $2 } END { if (sym[0] != "leaf" || 46 sym[1] != "parent" || 47 sym[2] != "leafloop") exit 1 }' 48