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.HotSpotAgent; 28 import sun.jvm.hotspot.utilities.ReversePtrsAnalysis; 29 30 import jdk.test.lib.apps.LingeredApp; 31 import jdk.test.lib.Asserts; 32 import jdk.test.lib.JDKToolFinder; 33 import jdk.test.lib.JDKToolLauncher; 34 import jdk.test.lib.Platform; 35 import jdk.test.lib.process.OutputAnalyzer; 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.Utils; 38 39 /* 40 * @test 41 * @library /test/lib 42 * @requires os.family != "mac" 43 * @modules java.base/jdk.internal.misc 44 * jdk.hotspot.agent/sun.jvm.hotspot 45 * jdk.hotspot.agent/sun.jvm.hotspot.utilities 46 * @run main/othervm TestRevPtrsForInvokeDynamic 47 */ 48 49 public class TestRevPtrsForInvokeDynamic { 50 51 private static LingeredAppWithInvokeDynamic theApp = null; 52 53 private static void computeReversePointers(String pid) throws Exception { 54 HotSpotAgent agent = new HotSpotAgent(); 55 56 try { 57 agent.attach(Integer.parseInt(pid)); 58 ReversePtrsAnalysis analysis = new ReversePtrsAnalysis(); 59 analysis.run(); 60 } finally { 61 agent.detach(); 62 } 63 } 64 65 private static void createAnotherToAttach(long lingeredAppPid) 66 throws Exception { 67 String[] toolArgs = { 68 "--add-modules=jdk.hotspot.agent", 69 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED", 70 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED", 71 "TestRevPtrsForInvokeDynamic", 72 Long.toString(lingeredAppPid) 73 }; 74 75 // Start a new process to attach to the lingered app 76 ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(toolArgs); 77 OutputAnalyzer SAOutput = ProcessTools.executeProcess(processBuilder); 78 SAOutput.shouldHaveExitValue(0); 79 System.out.println(SAOutput.getOutput()); 80 } 81 82 public static void main (String... args) throws Exception { 83 if (!Platform.shouldSAAttach()) { 84 System.out.println( 85 "SA attach not expected to work - test skipped."); 86 return; 87 } 88 89 if (args == null || args.length == 0) { 90 try { 91 List<String> vmArgs = new ArrayList<String>(); 92 vmArgs.add("-XX:+UsePerfData"); 93 vmArgs.addAll(Utils.getVmOptions()); 94 95 theApp = new LingeredAppWithInvokeDynamic(); 96 LingeredApp.startApp(vmArgs, theApp); 97 createAnotherToAttach(theApp.getPid()); 98 } finally { 99 LingeredApp.stopApp(theApp); 100 } 101 } else { 102 computeReversePointers(args[0]); 103 } 104 } 105 }