1 /* 2 * Copyright (c) 2016, 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. 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 * @test SASymbolTableTest 26 * @summary Walk symbol table using SA, with and without CDS. 27 * @requires vm.cds 28 * @library /test/lib 29 * @modules java.base/jdk.internal.misc 30 * jdk.hotspot.agent/sun.jvm.hotspot.oops 31 * jdk.hotspot.agent/sun.jvm.hotspot.memory 32 * jdk.hotspot.agent/sun.jvm.hotspot.runtime 33 * jdk.hotspot.agent/sun.jvm.hotspot.tools 34 * java.management 35 * @build SASymbolTableTestAgent 36 * @run main SASymbolTableTest 37 */ 38 39 import java.util.Arrays; 40 import java.util.List; 41 import jdk.test.lib.cds.CDSTestUtils; 42 import jdk.test.lib.process.ProcessTools; 43 import jdk.test.lib.process.OutputAnalyzer; 44 import jdk.test.lib.JDKToolFinder; 45 import jdk.test.lib.Platform; 46 import jdk.test.lib.apps.LingeredApp; 47 48 /* 49 * The purpose of this test is to validate that we can use SA to 50 * attach a process and walk its SymbolTable, regardless whether 51 * the attachee process runs in CDS mode or not. 52 * 53 * SASymbolTableTest Just sets up the agent and attachee processes. 54 * The SymbolTable walking is done in the SASymbolTableTestAgent class. 55 */ 56 public class SASymbolTableTest { 57 static String jsaName = "./SASymbolTableTest.jsa"; 58 private static LingeredApp theApp = null; 59 60 61 public static void main(String[] args) throws Exception { 62 if (!Platform.shouldSAAttach()) { 63 System.out.println("SA attach not expected to work - test skipped."); 64 return; 65 } 66 67 CDSTestUtils.createArchiveAndCheck(); 68 run(true); 69 run(false); 70 } 71 72 73 private static void run(boolean useArchive) throws Exception { 74 String flag = useArchive ? "auto" : "off"; 75 76 try { 77 // (1) Launch the attachee process 78 System.out.println("Starting LingeredApp"); 79 List<String> vmOpts = Arrays.asList( 80 "-XX:+UnlockDiagnosticVMOptions", 81 "-XX:SharedArchiveFile=" + jsaName, 82 "-Xshare:" + flag, 83 "-showversion"); // so we can see "sharing" in the output 84 85 theApp = LingeredApp.startApp(vmOpts); 86 87 // (2) Launch the agent process 88 long pid = theApp.getPid(); 89 System.out.println("Attaching agent to " + pid ); 90 ProcessBuilder tool = ProcessTools.createJavaProcessBuilder( 91 "--add-modules=jdk.hotspot.agent", 92 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED", 93 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.memory=ALL-UNNAMED", 94 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.runtime=ALL-UNNAMED", 95 "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.tools=ALL-UNNAMED", 96 "SASymbolTableTestAgent", 97 Long.toString(pid)); 98 OutputAnalyzer output = CDSTestUtils.executeAndLog(tool, "tool"); 99 if (output.getStdout().contains("connected too early")) { 100 System.out.println("SymbolTable not created by VM - test skipped"); 101 return; 102 } 103 output.shouldHaveExitValue(0); 104 } catch (Exception ex) { 105 throw new RuntimeException("Test ERROR " + ex, ex); 106 } finally { 107 LingeredApp.stopApp(theApp); 108 } 109 } 110 }