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.HotSpotAgent; 30 import sun.jvm.hotspot.runtime.VM; 31 32 import jdk.test.lib.apps.LingeredApp; 33 import jdk.test.lib.Asserts; 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 jdk.hotspot.agent/sun.jvm.hotspot 44 * jdk.hotspot.agent/sun.jvm.hotspot.gc.g1 45 * jdk.hotspot.agent/sun.jvm.hotspot.memory 46 * jdk.hotspot.agent/sun.jvm.hotspot.runtime 47 * @run main/othervm TestG1HeapRegion 48 */ 49 50 public class TestG1HeapRegion { 51 52 private static LingeredApp theApp = null; 53 54 private static void checkHeapRegion(String pid) throws Exception { 55 HotSpotAgent agent = new HotSpotAgent(); 56 57 try { 58 agent.attach(Integer.parseInt(pid)); 59 G1CollectedHeap heap = (G1CollectedHeap)VM.getVM().getUniverse().heap(); 60 HeapRegion hr = heap.hrm().heapRegionIterator().next(); 61 HeapRegion hrTop = heap.hrm().getByAddress(hr.top()); 62 63 Asserts.assertEquals(hr.top(), hrTop.top(), 64 "Address of HeapRegion does not match."); 65 } finally { 66 agent.detach(); 67 } 68 } 69 70 private static void createAnotherToAttach(long lingeredAppPid) 71 throws Exception { 72 String[] toolArgs = { 73 "--add-modules=jdk.hotspot.agent", 74 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED", 75 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.gc.g1=ALL-UNNAMED", 76 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.memory=ALL-UNNAMED", 77 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.runtime=ALL-UNNAMED", 78 "TestG1HeapRegion", 79 Long.toString(lingeredAppPid) 80 }; 81 82 // Start a new process to attach to the lingered app 83 ProcessBuilder processBuilder = ProcessTools.createJavaProcessBuilder(toolArgs); 84 OutputAnalyzer SAOutput = ProcessTools.executeProcess(processBuilder); 85 SAOutput.shouldHaveExitValue(0); 86 System.out.println(SAOutput.getOutput()); 87 } 88 89 public static void main (String... args) throws Exception { 90 if (!Platform.shouldSAAttach()) { 91 System.out.println( 92 "SA attach not expected to work - test skipped."); 93 return; 94 } 95 96 if (args == null || args.length == 0) { 97 try { 98 List<String> vmArgs = new ArrayList<String>(); 99 vmArgs.add("-XX:+UsePerfData"); 100 vmArgs.add("-XX:+UseG1GC"); 101 vmArgs.addAll(Utils.getVmOptions()); 102 103 theApp = new LingeredApp(); 104 LingeredApp.startApp(vmArgs, theApp); 105 createAnotherToAttach(theApp.getPid()); 106 } finally { 107 LingeredApp.stopApp(theApp); 108 } 109 } else { 110 checkHeapRegion(args[0]); 111 } 112 } 113 }