1 /*
2 * Copyright (c) 2017, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import java.util.ArrayList;
25 import java.util.List;
26
27 import sun.jvm.hotspot.gc.g1.G1CollectedHeap;
28 import sun.jvm.hotspot.gc.g1.HeapRegion;
29 import sun.jvm.hotspot.gc.shared.Space;
30 import sun.jvm.hotspot.gc.shared.SpaceClosure;
31 import sun.jvm.hotspot.HotSpotAgent;
32 import sun.jvm.hotspot.runtime.VM;
33
34 import jdk.test.lib.apps.LingeredApp;
35 import jdk.test.lib.Asserts;
36 import jdk.test.lib.Platform;
37 import jdk.test.lib.process.OutputAnalyzer;
38 import jdk.test.lib.process.ProcessTools;
39 import jdk.test.lib.Utils;
40
41 /*
42 * @test
43 * @library /test/lib
44 * @requires os.family != "mac"
45 * @modules jdk.hotspot.agent/sun.jvm.hotspot
46 * jdk.hotspot.agent/sun.jvm.hotspot.debugger
47 * jdk.hotspot.agent/sun.jvm.hotspot.gc.g1
48 * jdk.hotspot.agent/sun.jvm.hotspot.gc.shared
49 * jdk.hotspot.agent/sun.jvm.hotspot.memory
50 * jdk.hotspot.agent/sun.jvm.hotspot.runtime
51 * @run main/othervm TestG1HeapRegion
52 */
53
54 public class TestG1HeapRegion {
55
56 private static LingeredApp theApp = null;
57
58 private static class G1HeapRegionTestClosure implements SpaceClosure {
59 private final G1CollectedHeap heap;
60
61 public G1HeapRegionTestClosure(G1CollectedHeap heap) {
62 this.heap = heap;
63 }
64
65 @Override
66 public void doSpace(Space s) {
67 HeapRegion hr = (HeapRegion)s;
68 HeapRegion hrTop = heap.hrm().getByAddress(hr.top());
69
70 Asserts.assertEquals(hr.top(), hrTop.top(),
71 "Address of HeapRegion does not match.");
72 }
73 }
74
75 private static void scanHeapRegion(String pid) throws Exception {
76 HotSpotAgent agent = new HotSpotAgent();
77
78 try {
79 agent.attach(Integer.parseInt(pid));
80 G1CollectedHeap heap = (G1CollectedHeap)VM.getVM().getUniverse().heap();
81 heap.heapRegionIterate(new G1HeapRegionTestClosure(heap));
82 } finally {
83 agent.detach();
84 }
85 }
86
87 private static void createAnotherToAttach(long lingeredAppPid)
88 throws Exception {
89 String[] toolArgs = {
90 "--add-modules=jdk.hotspot.agent",
91 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED",
92 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.debugger=ALL-UNNAMED",
93 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.gc.g1=ALL-UNNAMED",
94 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.gc.shared=ALL-UNNAMED",
95 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.memory=ALL-UNNAMED",
96 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.runtime=ALL-UNNAMED",
97 "TestG1HeapRegion",
98 Long.toString(lingeredAppPid)
99 };
100
101 // Start a new process to attach to the lingered app
102 ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(toolArgs);
103 OutputAnalyzer SAOutput = ProcessTools.executeProcess(processBuilder);
104 SAOutput.shouldHaveExitValue(0);
105 System.out.println(SAOutput.getOutput());
106 }
107
108 public static void main (String... args) throws Exception {
109 if (!Platform.shouldSAAttach()) {
110 System.out.println(
111 "SA attach not expected to work - test skipped.");
112 return;
113 }
114
115 if (args == null || args.length == 0) {
116 try {
117 List<String> vmArgs = new ArrayList<String>();
118 vmArgs.add("-XX:+UsePerfData");
119 vmArgs.add("-XX:+UseG1GC");
120 vmArgs.addAll(Utils.getVmOptions());
121
122 theApp = new LingeredApp();
123 LingeredApp.startApp(vmArgs, theApp);
124 createAnotherToAttach(theApp.getPid());
125 } finally {
126 LingeredApp.stopApp(theApp);
127 }
128 } else {
129 scanHeapRegion(args[0]);
130 }
131 }
132 }