|
/*
* Copyright (c) 2016, 2022, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @summary Intrinsic for JFR
* @key jfr
* @requires vm.hasJFR
* @library /test/lib
*
* @modules jdk.jfr/jdk.jfr.internal
* java.base/jdk.internal.misc
* java.management
*
* @build jdk.test.whitebox.WhiteBox
*
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
*
* @run main/othervm -Xbootclasspath/a:. -ea -Xmixed -Xbatch -XX:TieredStopAtLevel=4 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* jdk.jfr.jvm.TestJFRIntrinsic
*
* @run main/othervm -Xbootclasspath/a:. -ea -Xmixed -Xbatch -XX:TieredStopAtLevel=1 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* jdk.jfr.jvm.TestJFRIntrinsic
*/
package jdk.jfr.jvm;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.stream.IntStream;
import jdk.jfr.internal.JVM;
import jdk.test.lib.Platform;
import jdk.test.whitebox.WhiteBox;
import jdk.test.whitebox.code.NMethod;
public class TestJFRIntrinsic {
private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
public Class<?> eventWriterClazz;
public Object eventWriter;
TestJFRIntrinsic() throws Exception {
// the intrinsic is premised on this class being loaded already - the event writer object is massaged heavily before returning
eventWriterClazz = Class.forName("jdk.jfr.internal.event.EventWriter", true, TestJFRIntrinsic.class.getClassLoader());
}
public static void main(String... args) throws Exception {
JVM.getJVM().createNativeJFR();
TestJFRIntrinsic ti = new TestJFRIntrinsic();
Method classid = TestJFRIntrinsic.class.getDeclaredMethod("getClassIdIntrinsic", Class.class);
ti.runIntrinsicTest(classid);
Method eventWriterMethod = TestJFRIntrinsic.class.getDeclaredMethod("getEventWriterIntrinsic", Class.class);
ti.runIntrinsicTest(eventWriterMethod);
}
public void getClassIdIntrinsic(Class<?> cls) {
long exp = JVM.getClassId(cls);
if (exp == 0) {
throw new RuntimeException("Class id is zero");
}
}
public void getEventWriterIntrinsic(Class<?> cls) {
Object o = JVM.getEventWriter();
if (o != null) {
eventWriter = o;
}
}
void runIntrinsicTest(Method method) throws Exception {
if (getMaxCompilationLevel() < 1) {
/* no compiler */
return;
}
/* load it */
try {
method.invoke(this, TestJFRIntrinsic.class);
} catch(Exception e) {
throw new RuntimeException(e);
}
int[] lvls = getAvailableCompilationLevels();
for (int i : lvls) {
if (!WHITE_BOX.enqueueMethodForCompilation(method, i)) {
throw new RuntimeException("Failed to enqueue method on level: " + i);
}
if (WHITE_BOX.isMethodCompiled(method)) {
NMethod nm = NMethod.get(method, false);
if (nm.comp_level != i) {
throw new RuntimeException("Failed to compile on correct level: " + i);
}
System.out.println("Compiled " + method + " on level " + i);
}
}
}
/* below is copied from CompilerUtil in hotspot test lib, removed this when it's moved */
/**
* Returns available compilation levels
*
* @return int array with compilation levels
*/
public static int[] getAvailableCompilationLevels() {
if (!WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompiler")) {
return new int[0];
}
if (WhiteBox.getWhiteBox().getBooleanVMFlag("TieredCompilation")) {
Long flagValue = WhiteBox.getWhiteBox()
.getIntxVMFlag("TieredStopAtLevel");
int maxLevel = flagValue.intValue();
return IntStream.rangeClosed(1, maxLevel).toArray();
} else {
if (Platform.isServer() && !Platform.isEmulatedClient()) {
return new int[]{4};
}
if (Platform.isClient() || Platform.isMinimal() || Platform.isEmulatedClient()) {
return new int[]{1};
}
}
return new int[0];
}
/**
* Returns maximum compilation level available
* @return an int value representing maximum compilation level available
*/
public static int getMaxCompilationLevel() {
return Arrays.stream(getAvailableCompilationLevels())
.max()
.getAsInt();
}
}
¤ Dauer der Verarbeitung: 0.18 Sekunden
(vorverarbeitet)
¤
|
Haftungshinweis
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung ist noch experimentell.
|
