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 ${PERF_INJ_DATA} 21} 22 23trap cleanup_files exit term int 24 25PERF_DIR=$(dirname "$(which perf)") 26if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then 27 LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so 28elif [ -e "$PWD/libperf-jvmti.so" ]; then 29 LIBJVMTI=$PWD/libperf-jvmti.so 30elif [ -e "$PERF_DIR/libperf-jvmti.so" ]; then 31 LIBJVMTI=$PERF_DIR/libperf-jvmti.so 32elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then 33 LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so 34elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then 35 LIBJVMTI=$PREFIX/lib/libperf-jvmti.so 36elif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then 37 LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so 38else 39 echo "Fail to find libperf-jvmti.so" 40 41 # JVMTI is a build option, skip the test if fail to find lib 42 exit 2 43fi 44 45cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI 46int fib(int x) { 47 return x > 1 ? fib(x - 2) + fib(x - 1) : 1; 48} 49 50int q = 0; 51 52for (int i = 0; i < 10; i++) 53 q += fib(i); 54 55System.out.println(q); 56EOF 57 58if [ $? -ne 0 ]; then 59 echo "Fail to record for java program" 60 exit 1 61fi 62 63if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then 64 echo "Fail to inject samples" 65 exit 1 66fi 67 68# Below is an example of the instruction samples reporting: 69# 8.18% jshell jitted-50116-29.so [.] Interpreter 70# 0.75% Thread-1 jitted-83602-1670.so [.] jdk.internal.jimage.BasicImageReader.getString(int) 71perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \ 72 grep -E " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1 73 74if [ $? -ne 0 ]; then 75 echo "Fail to find java symbols" 76 exit 1 77fi 78 79exit 0 80