1 /*
2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.jfr.event.compiler;
27
28 import static jdk.test.lib.Asserts.assertFalse;
29
30 import java.lang.reflect.Method;
31 import java.util.HashSet;
32 import java.util.List;
33 import java.util.Set;
34
35 import jdk.jfr.Recording;
36 import jdk.jfr.consumer.RecordedEvent;
37 import jdk.test.lib.Utils;
38 import jdk.test.lib.jfr.EventNames;
39 import jdk.test.lib.jfr.Events;
40 import sun.hotspot.WhiteBox;
41
42 /**
43 * @test
44 * @key jfr
45 *
46 *
47 * @library /lib /
48 * @build sun.hotspot.WhiteBox
49 * @run main ClassFileInstaller sun.hotspot.WhiteBox
50 * sun.hotspot.WhiteBox$WhiteBoxPermission
51 * @run main/othervm -Xbootclasspath/a:.
52 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
53 * jdk.jfr.event.compiler.TestCompilerCompile
54 */
55 public class TestCompilerCompile {
56 private final static String EVENT_NAME = EventNames.Compilation;
57 private final static String METHOD_NAME = "dummyMethod";
58 private boolean foundKnownMethod = false;
59 private boolean foundOsrMethod = false;
60
61 public static void main(String[] args) throws Throwable {
62 TestCompilerCompile test = new TestCompilerCompile();
63 test.doTest();
64 }
65
66 static void dummyMethod() {
67 System.out.println("hello!");
68 }
69
70 public void doTest() throws Throwable {
71 Recording recording = new Recording();
72 recording.enable(EVENT_NAME);
73
74 recording.start();
75 long start = System.currentTimeMillis();
76 // provoke OSR compilation
77 for (int i = 0; i < Integer.MAX_VALUE; i++) {
78 }
79 // compile dummyMethod()
80 Method mtd = TestCompilerCompile.class.getDeclaredMethod(METHOD_NAME, new Class[0]);
81 WhiteBox WB = WhiteBox.getWhiteBox();
82 if (!WB.enqueueMethodForCompilation(mtd, 4 /* CompLevel_full_optimization */)) {
83 WB.enqueueMethodForCompilation(mtd, 1 /* CompLevel_simple */);
84 }
85 Utils.waitForCondition(() -> WB.isMethodCompiled(mtd));
86 dummyMethod();
87
88 System.out.println("time:" + (System.currentTimeMillis() - start));
89 recording.stop();
90
91 Set<Integer> compileIds = new HashSet<Integer>();
92 List<RecordedEvent> events = Events.fromRecording(recording);
93 Events.hasEvents(events);
94 for (RecordedEvent event : events) {
95 System.out.println("Event:" + event);
96 verifyEvent(event);
97 Integer compileId = Events.assertField(event, "compileId").getValue();
98 assertFalse(compileIds.contains(compileId), "compile id not unique: " + compileId);
99 compileIds.add(compileId);
100 }
101
102 // Verify that we actually encountered our expected method
103 if (!foundKnownMethod) {
104 throw new Exception("Couldn't find method jdk/jfr/event/compiler/TestCompilerCompile.dummyMethod()V among compilation events");
105 }
106
107 // Verify that doTest() function has been replaced on stack.
108 if (!foundOsrMethod) {
109 throw new Exception("No On Stack Replacement of function doTest()");
110 }
111 }
112
113 private void verifyEvent(RecordedEvent event) throws Throwable {
114 Events.assertJavaMethod(event);
115 Events.assertEventThread(event);
116
117 String methodName = Events.assertField(event, "method.name").notEmpty().getValue();
118 String methodDescriptor = Events.assertField(event, "method.descriptor").notEmpty().getValue();
119 String methodType = Events.assertField(event, "method.type.name").notEmpty().getValue();
120
121 // Compare with a known candidate
122 if ("jdk/jfr/event/compiler/TestCompilerCompile".equals(methodType) && "dummyMethod".equals(methodName) && "()V".equals(methodDescriptor)) {
123 foundKnownMethod = true;
124 }
125
126 // The doTest() function is live almost the entire time the test runs.
127 // We should get at least 1 "on stack replacement" for that method.
128 if (TestCompilerCompile.class.getName().replace('.', '/').equals(methodType) && "doTest".equals(methodName)) {
129 boolean isOsr = Events.assertField(event, "isOsr").getValue();
130 if (isOsr) {
131 foundOsrMethod = true;
132 }
133 }
134
135 Events.assertField(event, "compileId").atLeast(0);
136 Events.assertField(event, "compileLevel").atLeast((short) 0).atMost((short) 4);
137 Events.assertField(event, "inlinedBytes").atLeast(0L);
138 Events.assertField(event, "codeSize").atLeast(0L);
139 Events.assertField(event, "isOsr");
140 }
141 }