1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 package org.graalvm.compiler.replacements.jdk12.test;
  26 
  27 import org.graalvm.compiler.api.test.Graal;
  28 import org.graalvm.compiler.replacements.test.MethodSubstitutionTest;
  29 import org.graalvm.compiler.runtime.RuntimeProvider;
  30 import org.graalvm.compiler.test.AddExports;
  31 import org.junit.Test;
  32 
  33 import jdk.vm.ci.aarch64.AArch64;
  34 import jdk.vm.ci.amd64.AMD64;
  35 import jdk.vm.ci.code.TargetDescription;
  36 
  37 /**
  38  * As of JDK 12 {@code jdk.internal.misc.Unsafe::.*Object()} methods were renamed to
  39  * {@code .*Reference()}.
  40  *
  41  * @see "https://bugs.openjdk.java.net/browse/JDK-8207146"
  42  */
  43 @AddExports("java.base/jdk.internal.misc")
  44 public class UnsafeObjectReplacementsTest extends MethodSubstitutionTest {
  45 
  46     static class Container {
  47         public volatile Object objectField = dummyValue;
  48     }
  49 
  50     static jdk.internal.misc.Unsafe unsafe = jdk.internal.misc.Unsafe.getUnsafe();
  51     static Container dummyValue = new Container();
  52     static Container newDummyValue = new Container();
  53     static long objectOffset;
  54 
  55     static {
  56         try {
  57             objectOffset = unsafe.objectFieldOffset(Container.class.getDeclaredField("objectField"));
  58         } catch (NoSuchFieldException e) {
  59             throw new RuntimeException(e);
  60         }
  61     }
  62 
  63     public static Object unsafeCompareAndExchangeReference() {
  64         Container container = new Container();
  65         return unsafe.compareAndExchangeReference(container, objectOffset, dummyValue, newDummyValue);
  66     }
  67 
  68     @Test
  69     public void testCompareAndSet() {
  70         TargetDescription target = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getTarget();
  71         if (target.arch instanceof AMD64) {
  72             testGraph("unsafeCompareAndExchangeReference");
  73         }
  74         test("unsafeCompareAndExchangeReference");
  75     }
  76 
  77     public static Object unsafeGetAndSetReference() {
  78         Container container = new Container();
  79         container.objectField = null;
  80         Container other = new Container();
  81         return unsafe.getAndSetReference(container, objectOffset, other);
  82     }
  83 
  84     @Test
  85     public void testGetAndSet() {
  86         TargetDescription target = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getTarget();
  87         if (target.arch instanceof AMD64 || target.arch instanceof AArch64) {
  88             testGraph("unsafeGetAndSetReference");
  89         }
  90         test("unsafeGetAndSetReference");
  91     }
  92 
  93     public static Object unsafeGetPutReference() {
  94         Container container = new Container();
  95         unsafe.putReference(container, objectOffset, "Hello there");
  96         return unsafe.getReference(container, objectOffset);
  97     }
  98 
  99     public static Object unsafeGetPutReferenceOpaque() {
 100         Container container = new Container();
 101         unsafe.putReferenceOpaque(container, objectOffset, "Hello there");
 102         return unsafe.getReferenceOpaque(container, objectOffset);
 103     }
 104 
 105     public static Object unsafeGetPutReferenceRA() {
 106         Container container = new Container();
 107         unsafe.putReferenceRelease(container, objectOffset, "Hello there");
 108         return unsafe.getReferenceAcquire(container, objectOffset);
 109     }
 110 
 111     public static Object unsafeGetPutReferenceVolatile() {
 112         Container container = new Container();
 113         unsafe.putReferenceVolatile(container, objectOffset, "Hello there");
 114         return unsafe.getReferenceVolatile(container, objectOffset);
 115     }
 116 
 117     @Test
 118     public void testUnsafeGetPutPlain() {
 119         testGraph("unsafeGetPutReference");
 120         test("unsafeGetPutReference");
 121     }
 122 
 123     @Test
 124     public void testUnsafeGetPutOpaque() {
 125         testGraph("unsafeGetPutReferenceOpaque");
 126         test("unsafeGetPutReferenceOpaque");
 127     }
 128 
 129     @Test
 130     public void testUnsafeGetPutReleaseAcquire() {
 131         testGraph("unsafeGetPutReferenceRA");
 132         test("unsafeGetPutReferenceRA");
 133     }
 134 
 135     @Test
 136     public void testUnsafeGetPutVolatile() {
 137         testGraph("unsafeGetPutReferenceVolatile");
 138         test("unsafeGetPutReferenceVolatile");
 139     }
 140 }