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/*
* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright Amazon.com Inc. 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
* @bug 8329126 8329421
* @summary check that native methods get compiled and printed
*
* @modules java.base/jdk.internal.misc
* @library /test/lib /
* @build jdk.test.whitebox.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
*
* @run main/othervm/native compiler.calls.NativeCalls
*/
package compiler.calls;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.regex.Pattern;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.whitebox.WhiteBox;
public class NativeCalls {
static Method emptyStaticNativeMethod;
static Method callNativeMethod;
static {
init();
}
static void init() {
System.loadLibrary("NativeCalls");
try {
emptyStaticNativeMethod = NativeCalls.class.getDeclaredMethod("emptyStaticNative");
callNativeMethod = NativeCalls.class.getDeclaredMethod("callNative");
} catch (NoSuchMethodException nsme) {
throw new Error("TEST BUG: can't find test method", nsme);
}
}
native static void emptyStaticNative();
static void callNative() {
emptyStaticNative();
}
static public void main(String[] args) throws Exception {
ArrayList<String> baseOptions = new ArrayList<String>();
baseOptions.add("-XX:+UnlockDiagnosticVMOptions");
baseOptions.add("-XX:+WhiteBoxAPI");
baseOptions.add("-Xbootclasspath/a:.");
baseOptions.add("-Xbatch");
baseOptions.add("-XX:-UseOnStackReplacement");
baseOptions.add("-XX:+PrintCompilation");
baseOptions.add(Executor.class.getName());
String nativeMethodName = NativeCalls.class.getName() + "::" + emptyStaticNativeMethod.getName();
List<Variant> variants = List.of(new Variant(List.of("-XX:+TieredCompilation"), "true", "false"),
new Variant(List.of("-XX:-TieredCompilation"), "true", "false"),
new Variant(List.of("-XX:+TieredCompilation",
"-XX:+PreferInterpreterNativeStubs"), "false", "false"),
new Variant(List.of("-XX:-TieredCompilation",
"-XX:+PreferInterpreterNativeStubs"), "false", "false"),
new Variant(List.of("-XX:+TieredCompilation", "-XX:TieredStopAtLevel=1"), "true", "false"),
new Variant(List.of("-XX:+TieredCompilation", "-XX:TieredStopAtLevel=2"), "true", "false"),
new Variant(List.of("-XX:+TieredCompilation", "-XX:TieredStopAtLevel=3"), "true", "false"),
new Variant(List.of("-XX:+TieredCompilation", "-XX:TieredStopAtLevel=4"), "true", "false"),
new Variant(List.of("-XX:+TieredCompilation",
"-XX:CompileCommand=print," + nativeMethodName), "true", "true"),
new Variant(List.of("-XX:-TieredCompilation",
"-XX:CompileCommand=print," + nativeMethodName), "true", "true"),
new Variant(List.of("-XX:-TieredCompilation",
"-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintAssembly"), "true", "true"),
new Variant(List.of("-XX:-TieredCompilation",
"-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintNativeNMethods"), "true", "true"),
new Variant(List.of("-XX:+TieredCompilation",
"-XX:CompileCommand=exclude," + nativeMethodName), "false", "false"),
new Variant(List.of("-XX:-TieredCompilation",
"-XX:CompileCommand=exclude," + nativeMethodName), "false", "false"));
for (Variant v : variants) {
ArrayList<String> command = new ArrayList<String>(v.options);
command.addAll(baseOptions);
command.add(v.compile);
ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(command);
OutputAnalyzer analyzer = new OutputAnalyzer(pb.start());
analyzer.shouldHaveExitValue(0);
System.out.println(analyzer.getOutput());
if (Boolean.valueOf(v.print).booleanValue() &&
analyzer.asLines().stream().
filter(Pattern.compile("Compiled method.+" + nativeMethodName + ".*").asPredicate()).
findAny().isEmpty()) {
throw new Error(nativeMethodName + " not printed");
}
}
}
public static class Variant {
Collection<String> options;
String compile;
String print;
public Variant(Collection<String> options, String compile, String print) {
this.options = options;
this. compile = compile;
this. print = print;
}
}
public static class Executor {
static WhiteBox wb = WhiteBox.getWhiteBox();
static public void main(String[] args) {
if (args.length != 1) {
throw new Error("Expected two arguments");
}
boolean compile = Boolean.valueOf(args[0]);
for (int i = 0; i < 20_000; i++) {
callNative();
}
if (wb.getMethodCompilationLevel(callNativeMethod) > 0) {
if (compile && !wb.isMethodCompiled(emptyStaticNativeMethod)) {
throw new Error("TEST BUG: '" + emptyStaticNativeMethod + "' should be compiled");
}
if (!compile && wb.isMethodCompiled(emptyStaticNativeMethod)) {
throw new Error("TEST BUG: '" + emptyStaticNativeMethod + "' should not be compiled");
}
}
}
}
}
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