123 lines
4.8 KiB
Java
123 lines
4.8 KiB
Java
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test SASymbolTableTest
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* @summary Walk symbol table using SA, with and without CDS.
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* jdk.hotspot.agent/sun.jvm.hotspot.oops
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* jdk.hotspot.agent/sun.jvm.hotspot.memory
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* jdk.hotspot.agent/sun.jvm.hotspot.runtime
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* jdk.hotspot.agent/sun.jvm.hotspot.tools
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* java.management
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* @build SASymbolTableTestAgent
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* @run main SASymbolTableTest
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*/
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import java.util.Arrays;
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import java.util.List;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.JDKToolFinder;
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import jdk.test.lib.Platform;
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import jdk.test.lib.apps.LingeredApp;
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/*
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* The purpose of this test is to validate that we can use SA to
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* attach a process and walk its SymbolTable, regardless whether
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* the attachee process runs in CDS mode or not.
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*
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* SASymbolTableTest Just sets up the agent and attachee processes.
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* The SymbolTable walking is done in the SASymbolTableTestAgent class.
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*/
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public class SASymbolTableTest {
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static String jsaName = "./SASymbolTableTest.jsa";
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private static LingeredApp theApp = null;
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public static void main(String[] args) throws Exception {
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if (!Platform.shouldSAAttach()) {
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System.out.println("SA attach not expected to work - test skipped.");
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return;
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}
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createArchive();
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run(true);
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run(false);
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}
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private static void createArchive() throws Exception {
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:SharedArchiveFile=" + jsaName,
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"-Xshare:dump");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldContain("Loading classes to share");
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output.shouldHaveExitValue(0);
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}
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private static void run(boolean useArchive) throws Exception {
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String flag = useArchive ? "auto" : "off";
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try {
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// (1) Launch the attachee process
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System.out.println("Starting LingeredApp");
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List<String> vmOpts = Arrays.asList(
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"-XX:+UnlockDiagnosticVMOptions",
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"-XX:SharedArchiveFile=" + jsaName,
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"-Xshare:" + flag,
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"-showversion"); // so we can see "sharing" in the output
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theApp = LingeredApp.startApp(vmOpts);
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// (2) Launch the agent process
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long pid = theApp.getPid();
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System.out.println("Attaching agent to " + pid );
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ProcessBuilder tool = ProcessTools.createJavaProcessBuilder(
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"--add-modules=jdk.hotspot.agent",
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"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED",
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"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.memory=ALL-UNNAMED",
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"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.runtime=ALL-UNNAMED",
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"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.tools=ALL-UNNAMED",
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"SASymbolTableTestAgent",
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Long.toString(pid));
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OutputAnalyzer output = ProcessTools.executeProcess(tool);
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System.out.println("STDOUT[");
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System.out.println(output.getOutput());
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if (output.getStdout().contains("connected too early")) {
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System.out.println("SymbolTable not created by VM - test skipped");
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return;
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}
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System.out.println("]");
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System.out.println("STDERR[");
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System.out.print(output.getStderr());
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System.out.println("]");
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output.shouldHaveExitValue(0);
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} catch (Exception ex) {
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throw new RuntimeException("Test ERROR " + ex, ex);
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} finally {
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LingeredApp.stopApp(theApp);
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}
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}
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}
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