name : test_java_symbol.sh #!/bin/bash # Test java symbol # SPDX-License-Identifier: GPL-2.0 # Leo Yan <leo.yan@linaro.org>, 2022 # skip if there's no jshell if ! [ -x "$(command -v jshell)" ]; then echo "skip: no jshell, install JDK" exit 2 fi PERF_DATA=$(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=$PWD/tools/perf/libperf-jvmti.so elif [ -e "$PWD/libperf-jvmti.so" ]; then LIBJVMTI=$PWD/libperf-jvmti.so elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then LIBJVMTI=$PREFIX/lib/libperf-jvmti.so elif [ -e "/usr/lib/linux-tools-$(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.so else echo "Fail to find libperf-jvmti.so" # JVMTI is a build option, skip the test if fail to find lib exit 2 fi cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI int 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 1 fi if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then echo "Fail to inject samples" exit 1 fi # 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 1 fi exit 0