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