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
8 if ! [ -x "$(command -v jshell)" ]; then
9 echo "skip: no jshell, install JDK"
10 exit 2
11 fi
12
13 PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
14 PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX)
15
16 cleanup_files()
17 {
18 echo "Cleaning up files..."
19 rm -f ${PERF_DATA}
20 rm -f ${PERF_INJ_DATA}
21 }
22
23 trap cleanup_files exit term int
24
25 if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then
26 LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so
27 elif [ -e "$PWD/libperf-jvmti.so" ]; then
28 LIBJVMTI=$PWD/libperf-jvmti.so
29 elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then
30 LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so
31 elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then
32 LIBJVMTI=$PREFIX/lib/libperf-jvmti.so
33 elif [ -e "/usr/lib/linux-tools-$(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
35 else
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
39 fi
40
41 cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI
42 int fib(int x) {
43 return x > 1 ? fib(x - 2) + fib(x - 1) : 1;
44 }
45
46 int q = 0;
47
48 for (int i = 0; i < 10; i++)
49 q += fib(i);
50
51 System.out.println(q);
52 EOF
53
54 if [ $? -ne 0 ]; then
55 echo "Fail to record for java program"
56 exit 1
57 fi
58
59 if ! DEBUGINFOD_URLS='' perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then
60 echo "Fail to inject samples"
61 exit 1
62 fi
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)
67 perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \
68 grep -E " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1
69
70 if [ $? -ne 0 ]; then
71 echo "Fail to find java symbols"
72 exit 1
73 fi
74
75 exit 0
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