1#!/bin/bash 2# Test java symbol 3 4# SPDX-License-Identifier: GPL-2.0 5# Leo Yan <leo.yan@linaro.org>, 2022 6 7# skip if there's no jshell 8if ! [ -x "$(command -v jshell)" ]; then 9 echo "skip: no jshell, install JDK" 10 exit 2 11fi 12 13PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX) 14PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX) 15 16cleanup_files() 17{ 18 echo "Cleaning up files..." 19 rm -f ${PERF_DATA} 20 rm -f ${PERF_INJ_DATA} 21} 22 23trap cleanup_files exit term int 24 25if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then 26 LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so 27elif [ -e "$PWD/libperf-jvmti.so" ]; then 28 LIBJVMTI=$PWD/libperf-jvmti.so 29elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then 30 LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so 31elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then 32 LIBJVMTI=$PREFIX/lib/libperf-jvmti.so 33elif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then 34 LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so 35else 36 echo "Fail to find libperf-jvmti.so" 37 # JVMTI is a build option, skip the test if fail to find lib 38 exit 2 39fi 40 41cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI 42int fib(int x) { 43 return x > 1 ? fib(x - 2) + fib(x - 1) : 1; 44} 45 46int q = 0; 47 48for (int i = 0; i < 10; i++) 49 q += fib(i); 50 51System.out.println(q); 52EOF 53 54if [ $? -ne 0 ]; then 55 echo "Fail to record for java program" 56 exit 1 57fi 58 59if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then 60 echo "Fail to inject samples" 61 exit 1 62fi 63 64# Below is an example of the instruction samples reporting: 65# 8.18% jshell jitted-50116-29.so [.] Interpreter 66# 0.75% Thread-1 jitted-83602-1670.so [.] jdk.internal.jimage.BasicImageReader.getString(int) 67perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \ 68 grep -E " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1 69 70if [ $? -ne 0 ]; then 71 echo "Fail to find java symbols" 72 exit 1 73fi 74 75exit 0 76