1 /*
   2  * Copyright (c) 2016, 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  * @test
  26  * @bug 8152341
  27  * @requires vm.jvmci
  28  * @library /test/lib /compiler/jvmci/jdk.vm.ci.hotspot.test/src
  29  * @modules jdk.internal.vm.ci/jdk.vm.ci.meta
  30  *          jdk.internal.vm.ci/jdk.vm.ci.common
  31  *          jdk.internal.vm.ci/jdk.vm.ci.runtime
  32  *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
  33  *          java.base/jdk.internal.misc
  34  * @build sun.hotspot.WhiteBox
  35  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  36  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  37  * @run testng/othervm -Xbootclasspath/a:.
  38  *      -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  39  *      -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  40  *      -Djvmci.Compiler=null jdk.vm.ci.hotspot.test.MemoryAccessProviderTest
  41  */
  42 
  43 package jdk.vm.ci.hotspot.test;
  44 
  45 import sun.hotspot.WhiteBox;
  46 
  47 import jdk.vm.ci.meta.Constant;
  48 import jdk.vm.ci.meta.JavaKind;
  49 import jdk.vm.ci.meta.MemoryAccessProvider;
  50 import jdk.vm.ci.runtime.JVMCI;
  51 import org.testng.Assert;
  52 import org.testng.annotations.Test;
  53 
  54 public class MemoryAccessProviderTest {
  55     private static final MemoryAccessProvider PROVIDER = JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection().getMemoryAccessProvider();
  56 
  57     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
  58     public void testPositiveReadPrimitiveConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  59         Assert.assertEquals(PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount), expected, "Failed to read constant");
  60     }
  61 
  62     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  63     public void testReadPrimitiveConstantNullBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  64         Assert.assertNull(PROVIDER.readPrimitiveConstant(kind, null, offset, bitsCount), "Unexpected value for null base");
  65     }
  66 
  67     @Test(dataProvider = "negative", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  68     public void testNegativeReadPrimitiveConstant(JavaKind kind, Constant base) {
  69         PROVIDER.readPrimitiveConstant(kind, base, 0L, kind == null ? 0 : kind.getByteCount() / 8);
  70     }
  71 
  72     @Test(dataProvider = "outOfBoundsInstanceFields", dataProviderClass = MemoryAccessProviderData.class)
  73     public void testReadPrimitiveInstanceFieldOutOfBounds(JavaKind kind, Constant base, Long offset, boolean isOutOfBounds) {
  74         try {
  75             PROVIDER.readPrimitiveConstant(kind, base, offset, kind.getByteCount() * 8);
  76             Assert.assertFalse(isOutOfBounds);
  77         } catch (IllegalArgumentException iae) {
  78             Assert.assertTrue(isOutOfBounds);
  79         }
  80     }
  81 
  82     @Test(dataProvider = "outOfBoundsStaticFields", dataProviderClass = MemoryAccessProviderData.class)
  83     public void testReadPrimitiveStaticFieldOutOFBounds(JavaKind kind, Constant base, Long offset, boolean isOutOfBounds) {
  84         try {
  85             PROVIDER.readPrimitiveConstant(kind, base, offset, kind.getByteCount() * 8);
  86             Assert.assertFalse(isOutOfBounds);
  87         } catch (IllegalArgumentException iae) {
  88             Assert.assertTrue(isOutOfBounds);
  89         }
  90     }
  91 
  92     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  93     public void testObjectReadPrimitiveConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  94         PROVIDER.readPrimitiveConstant(kind, base, 0L, bitsCount);
  95     }
  96 
  97     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  98     public void testReadPrimitiveConstantLessBits(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  99         PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount - 1);
 100     }
 101 
 102     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 103     public void testPositiveReadObjectConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 104         Assert.assertEquals(PROVIDER.readObjectConstant(base, offset), expected, "Unexpected result");
 105     }
 106 
 107     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 108     public void testNegativeReadObjectConstantNullBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 109         Assert.assertNull(PROVIDER.readObjectConstant(null, offset), "Unexpected return");
 110     }
 111 
 112     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 113     public void testNegativeReadObjectConstantWrongOffset(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 114         Assert.assertNull(PROVIDER.readObjectConstant(base, offset + 1), "Expected null");
 115     }
 116 
 117     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
 118     public void testNegativeReadObjectConstantPrimitiveBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 119         Assert.assertNull(PROVIDER.readObjectConstant(base, offset), "Expected null");
 120     }
 121 }