1 /*
 2  * Copyright (c) 2022, 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 
25 import jdk.test.lib.JDKToolFinder;
26 import jdk.test.lib.cds.CDSTestUtils;
27 import jdk.test.lib.process.OutputAnalyzer;
28 import jtreg.SkippedException;
29 
30 /*
31  * @test
32  * @bug 8213445
33  * @summary Test dumping of dynamic shared symbols using jcmd
34  * @requires vm.cds
35  * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
36  *          /test/hotspot/jtreg/runtime/cds/appcds/test-classes
37  *          /test/hotspot/jtreg/runtime/cds/appcds/jcmd
38  * @build JCmdTestLingeredApp Hello jdk.test.lib.apps.LingeredApp
39  * @build jdk.test.whitebox.WhiteBox
40  * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar loadclass.jar JCmdTestLingeredApp
41  *             jdk.test.lib.apps.LingeredApp jdk.test.lib.apps.LingeredApp$1
42  * @run driver jdk.test.lib.helpers.ClassFileInstaller -jar WhiteBox.jar jdk.test.whitebox.WhiteBox
43  * @run main/othervm/timeout=500 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:./WhiteBox.jar DynamicSharedSymbols
44  */
45 
46 import jdk.test.lib.apps.LingeredApp;
47 import jdk.test.lib.helpers.ClassFileInstaller;
48 import jdk.test.whitebox.WhiteBox;
49 
50 public class DynamicSharedSymbols extends DynamicArchiveTestBase {
51 
52     public static void main(String[] args) throws Exception {
53         runTest(DynamicSharedSymbols::testDefaultBase);
54     }
55 
56     static void testDefaultBase() throws Exception {
57         String topArchiveName = getNewArchiveName("top");
58         doTest(topArchiveName);
59     }
60 
61     private static void doTest(String topArchiveName) throws Exception {
62         WhiteBox wb = WhiteBox.getWhiteBox();
63         if (!wb.isSharingEnabled()) {
64             throw new SkippedException("Sharing is not enabled, test is skipped.");
65         }
66 
67         String appJar = ClassFileInstaller.getJarPath("loadclass.jar");
68 
69         // Create a dynamic archive.
70         String dynamicDumpArg = "-XX:ArchiveClassesAtExit=" + topArchiveName;
71         JCmdTestLingeredApp theApp = new JCmdTestLingeredApp();
72         LingeredApp.startApp(theApp, dynamicDumpArg,
73                              "-Xlog:cds,cds+dynamic=info",
74                              "-cp", appJar);
75         long pid = theApp.getPid();
76         LingeredApp.stopApp(theApp);
77 
78         // Run with dynamic archive.
79         String sharedArchiveArg = "-XX:SharedArchiveFile=" + topArchiveName;
80         theApp = new JCmdTestLingeredApp();
81         LingeredApp.startApp(theApp,
82                              "-Xshare:on", sharedArchiveArg,
83                              "-Xlog:cds,class+load",
84                              "-cp", appJar);
85         pid = theApp.getPid();
86 
87 
88         // Use jcmd to dump the symbols of the above process running
89         // with dynamic shared archive.
90         ProcessBuilder pb = new ProcessBuilder();
91         pb.command(new String[] {JDKToolFinder.getJDKTool("jcmd"), Long.toString(pid), "VM.symboltable", "-verbose"});
92         OutputAnalyzer output = CDSTestUtils.executeAndLog(pb, "jcmd-symboltable");
93         output.shouldContain("17 2: jdk/test/lib/apps\n");
94         output.shouldContain("Dynamic shared symbols:\n");
95         output.shouldContain("5 65535: Hello\n");
96 
97         LingeredApp.stopApp(theApp);
98     }
99 }