#!/bin/bash# Test java symbol # SPDX-License-Identifier: GPL-2.0# Leo Yan <leo.yan@linaro.org>, 2022 # skip if there's no jshellif ! [ -x "$(command -v jshell)" ]; then	echo "skip: no jshell, install JDK"	exit 2fi PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX) cleanup_files(){	echo "Cleaning up files..."	rm -f ${PERF_DATA}	rm -f ${PERF_INJ_DATA}} trap cleanup_files exit term int if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then	LIBJVMTI=$PWD/tools/perf/libperf-jvmti.soelif [ -e "$PWD/libperf-jvmti.so" ]; then	LIBJVMTI=$PWD/libperf-jvmti.soelif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then	LIBJVMTI=$PREFIX/lib64/libperf-jvmti.soelif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then	LIBJVMTI=$PREFIX/lib/libperf-jvmti.soelif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then	LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.soelse	echo "Fail to find libperf-jvmti.so"	# JVMTI is a build option, skip the test if fail to find lib	exit 2fi cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTIint fib(int x) {	return x > 1 ? fib(x - 2) + fib(x - 1) : 1;} int q = 0; for (int i = 0; i < 10; i++)	q += fib(i); System.out.println(q);EOF if [ $? -ne 0 ]; then	echo "Fail to record for java program"	exit 1fi if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then	echo "Fail to inject samples"	exit 1fi # Below is an example of the instruction samples reporting:#   8.18%  jshell           jitted-50116-29.so    [.] Interpreter#   0.75%  Thread-1         jitted-83602-1670.so  [.] jdk.internal.jimage.BasicImageReader.getString(int)perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \	grep -E " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1 if [ $? -ne 0 ]; then	echo "Fail to find java symbols"	exit 1fi exit 0