/*
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
import sun.jvm.hotspot.HotSpotAgent;
import sun.jvm.hotspot.utilities.SystemDictionaryHelper;
import sun.jvm.hotspot.oops.InstanceKlass;
import sun.jvm.hotspot.debugger.*;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import jdk.test.lib.JDKToolLauncher;
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.Utils;
import jdk.test.lib.apps.LingeredApp;
import jdk.test.lib.Asserts;
import java.io.*;
import java.util.*;
/*
* @test
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @compile -XDignore.symbol.file=true
* --add-modules=jdk.hotspot.agent
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot.debugger=ALL-UNNAMED
* TestInstanceKlassSize.java
* @run main/othervm
* --add-modules=jdk.hotspot.agent
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED
* --add-exports=jdk.hotspot.agent/sun.jvm.hotspot.debugger=ALL-UNNAMED
* TestInstanceKlassSize
*/
public class TestInstanceKlassSize {
private static String getJcmdInstanceKlassSize(OutputAnalyzer output,
String instanceKlassName) {
for (String s : output.asLines()) {
if (s.contains(instanceKlassName)) {
String tokens[];
System.out.println(s);
tokens = s.split("\\s+");
return tokens[3];
}
}
return null;
}
private static OutputAnalyzer jcmd(Long pid,
String... toolArgs) throws Exception {
ProcessBuilder processBuilder = new ProcessBuilder();
JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jcmd");
launcher.addToolArg(Long.toString(pid));
if (toolArgs != null) {
for (String toolArg : toolArgs) {
launcher.addToolArg(toolArg);
}
}
processBuilder.command(launcher.getCommand());
System.out.println(
processBuilder.command().stream().collect(Collectors.joining(" ")));
return ProcessTools.executeProcess(processBuilder);
}
private static void startMeWithArgs() throws Exception {
LingeredApp app = null;
OutputAnalyzer output = null;
try {
List<String> vmArgs = new ArrayList<String>();
vmArgs.add("-XX:+UsePerfData");
vmArgs.addAll(Utils.getVmOptions());
app = LingeredApp.startApp(vmArgs);
System.out.println ("Started LingeredApp with pid " + app.getPid());
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
try {
String[] instanceKlassNames = new String[] {
" java.lang.Object",
" java.util.Vector",
" sun.util.PreHashedMap",
" java.lang.String",
" java.lang.Thread",
" java.lang.Byte",
};
String[] toolArgs = {
"--add-modules=jdk.hotspot.agent",
"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED",
"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED",
"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED",
"--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.debugger=ALL-UNNAMED",
"TestInstanceKlassSize",
Long.toString(app.getPid())
};
OutputAnalyzer jcmdOutput = jcmd(
app.getPid(),
"GC.class_stats", "VTab,ITab,OopMap,KlassBytes");
ProcessBuilder processBuilder = ProcessTools
.createJavaProcessBuilder(toolArgs);
output = ProcessTools.executeProcess(processBuilder);
System.out.println(output.getOutput());
output.shouldHaveExitValue(0);
// Check whether the size matches that which jcmd outputs
for (String instanceKlassName : instanceKlassNames) {
System.out.println ("Trying to match for" + instanceKlassName);
String jcmdInstanceKlassSize = getJcmdInstanceKlassSize(
jcmdOutput,
instanceKlassName);
Asserts.assertNotNull(jcmdInstanceKlassSize,
"Could not get the instance klass size from the jcmd output");
for (String s : output.asLines()) {
if (s.contains(instanceKlassName)) {
Asserts.assertTrue(
s.contains(jcmdInstanceKlassSize),
"The size computed by SA for" +
instanceKlassName + " does not match.");
}
}
}
} finally {
LingeredApp.stopApp(app);
}
}
private static void SAInstanceKlassSize(int pid,
String[] SAInstanceKlassNames) {
HotSpotAgent agent = new HotSpotAgent();
try {
agent.attach(pid);
}
catch (DebuggerException e) {
System.out.println(e.getMessage());
System.err.println("Unable to connect to process ID: " + pid);
agent.detach();
e.printStackTrace();
}
for (String SAInstanceKlassName : SAInstanceKlassNames) {
InstanceKlass ik = SystemDictionaryHelper.findInstanceKlass(
SAInstanceKlassName);
Asserts.assertNotNull(ik,
String.format("Unable to find instance klass for %s", ik));
System.out.println("SA: The size of " + SAInstanceKlassName +
" is " + ik.getSize());
}
agent.detach();
}
public static void main(String[] args) throws Exception {
if (!Platform.shouldSAAttach()) {
System.out.println("SA attach not expected to work - test skipped.");
return;
}
if (args == null || args.length == 0) {
System.out.println ("No args run. Starting with args now.");
startMeWithArgs();
} else {
String[] SAInstanceKlassNames = new String[] {
"java.lang.Object",
"java.util.Vector",
"sun.util.PreHashedMap",
"java.lang.String",
"java.lang.Thread",
"java.lang.Byte"
};
SAInstanceKlassSize(Integer.parseInt(args[0]), SAInstanceKlassNames);
}
}
}