| /* |
| * Copyright (c) 2017, 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. |
| */ |
| |
| |
| package org.graalvm.compiler.hotspot.test; |
| |
| import java.util.function.Function; |
| |
| import org.graalvm.compiler.test.GraalTest; |
| import org.junit.Assume; |
| import org.junit.Test; |
| |
| import jdk.vm.ci.code.InstalledCode; |
| import jdk.vm.ci.code.InvalidInstalledCodeException; |
| import jdk.vm.ci.code.stack.InspectedFrame; |
| import jdk.vm.ci.code.stack.StackIntrospection; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| |
| /** |
| * Create a single object which is referenced from a local, the expression stack and the lock state |
| * and then ensure that identity is maintained when the frame is forced to be materialized by |
| * {@link InspectedFrame#materializeVirtualObjects(boolean)}. |
| */ |
| public class HotSpotStackIntrospectionTest extends HotSpotGraalCompilerTest { |
| |
| static StackIntrospection stackIntrospection = HotSpotJVMCIRuntime.runtime().getHostJVMCIBackend().getStackIntrospection(); |
| static volatile int v; |
| |
| public static void testSynchronizedSnippet(Function<Void, Void> f) { |
| Object a = new Object(); |
| synchronized (a) { |
| testOnStack(a, forceFrameState(a, f), a); |
| // This object should be locked so try to notify on it |
| a.notify(); |
| } |
| } |
| |
| public static void testSnippet(Function<Void, Void> f) { |
| Object a = new Object(); |
| testOnStack(a, forceFrameState(a, f), a); |
| } |
| |
| private static void testOnStack(Object a, Object a2, Object a3) { |
| if (a != a2 || a != a3) { |
| throw new InternalError(); |
| } |
| } |
| |
| private static Object forceFrameState(Object a, Function<Void, Void> f) { |
| // Use a volatile store to ensure a FrameState is captured after this point. |
| v++; |
| f.apply(null); |
| return a; |
| } |
| |
| @Test(timeout = 20000) |
| public void run() throws InvalidInstalledCodeException { |
| // The JDK9 bits are currently broken |
| Assume.assumeTrue(GraalTest.Java8OrEarlier); |
| test("testSnippet"); |
| } |
| |
| @Test(timeout = 20000) |
| public void runSynchronized() throws InvalidInstalledCodeException { |
| // The JDK9 bits are currently broken |
| Assume.assumeTrue(GraalTest.Java8OrEarlier); |
| test("testSynchronizedSnippet"); |
| } |
| |
| private void test(String name) throws InvalidInstalledCodeException { |
| ResolvedJavaMethod method = getMetaAccess().lookupJavaMethod(getMethod(name)); |
| Function<Void, Void> f = o -> { |
| stackIntrospection.iterateFrames(null, null, 0, frame -> { |
| if (frame.getMethod().equals(method)) { |
| frame.materializeVirtualObjects(true); |
| } |
| return null; |
| }); |
| return null; |
| }; |
| InstalledCode code = getCode(method); |
| code.executeVarargs(f); |
| } |
| |
| } |