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#!/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 ! 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
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