105 lines
4.4 KiB
Java
105 lines
4.4 KiB
Java
/*
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* Copyright (c) 2021, 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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import jdk.test.lib.apps.LingeredApp;
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import jtreg.SkippedException;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* @test
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* @bug 8261095
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* @summary Test the clhsdb 'symbol' command on live process
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* @requires vm.hasSA
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* @library /test/lib
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* @run main/othervm ClhsdbSymbol
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*/
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public class ClhsdbSymbol {
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public static void main(String[] args) throws Exception {
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System.out.println("Starting the ClhsdbSymbol test");
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LingeredApp theApp = null;
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try {
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List<String> cmds = null;
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String cmdStr = null;
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Map<String, List<String>> expStrMap = null;
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ClhsdbLauncher test = new ClhsdbLauncher();
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theApp = LingeredApp.startApp();
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System.out.println("Started LingeredApp with pid " + theApp.getPid());
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// Use command "class java.lang.Thread" to get the address of the InstanceKlass for java.lang.Thread
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cmdStr = "class java.lang.Thread";
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("java/lang/Thread"));
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String classOutput = test.run(theApp.getPid(), cmds, expStrMap, null);
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// Extract the thread InstanceKlass address from the output, which looks similar to the following:
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// java/lang/Thread @0x000000080001d940
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String threadAddress = classOutput.lines()
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.filter(part -> part.startsWith("java/lang/Thread"))
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.map(part -> part.split(" @"))
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.findFirst()
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.map(addresses -> addresses[1])
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.orElseThrow(() -> new RuntimeException(
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"Cannot find address of the InstanceKlass for java.lang.Thread in output"));
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// Use "inspect" on the thread address we extracted in the previous step
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cmdStr = "inspect " + threadAddress;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("Symbol"));
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String inspectOutput = test.run(theApp.getPid(), cmds, expStrMap, null);
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// The inspect command output will have one line of output that looks like the following.
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// Symbol* Klass::_name: Symbol @ 0x0000000800471120
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// Extract the Symbol address from it.
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String symbolAddress = inspectOutput.lines()
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.filter(part -> part.startsWith("Symbol"))
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.map(part -> part.split("@ "))
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.findFirst().map(symbolParts -> symbolParts[1])
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.orElseThrow(() -> new RuntimeException("Cannot find address with Symbol instance"));
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// Run "symbol" command on the Symbol instance address extracted in the previous step.
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// It should produce the symbol for java/lang/Thread.
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cmdStr = "symbol " + symbolAddress;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("#java/lang/Thread"));
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test.run(theApp.getPid(), cmds, expStrMap, null);
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} catch (SkippedException se) {
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throw se;
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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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System.out.println("Test PASSED");
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}
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}
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