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 /compiler/jvmci/common/patches /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  * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  36  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  37  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  38  * @run testng/othervm -Xbootclasspath/a:.
  39  *      -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  40  *      -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  41  *      -Djvmci.Compiler=null jdk.vm.ci.hotspot.test.MemoryAccessProviderTest
  42  */
  43 
  44 package jdk.vm.ci.hotspot.test;
  45 
  46 import sun.hotspot.WhiteBox;
  47 
  48 import jdk.vm.ci.meta.Constant;
  49 import jdk.vm.ci.meta.JavaKind;
  50 import jdk.vm.ci.meta.MemoryAccessProvider;
  51 import jdk.vm.ci.runtime.JVMCI;
  52 import org.testng.Assert;
  53 import org.testng.annotations.Test;
  54 
  55 public class MemoryAccessProviderTest {
  56     private static final MemoryAccessProvider PROVIDER = JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection().getMemoryAccessProvider();
  57 
  58     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class)
  59     public void testPositiveReadPrimitiveConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  60         Assert.assertEquals(PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount), expected, "Failed to read constant");
  61     }
  62 
  63     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  64     public void testReadPrimitiveConstantNullBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  65         Assert.assertNull(PROVIDER.readPrimitiveConstant(kind, null, offset, bitsCount), "Unexpected value for null base");
  66     }
  67 
  68     @Test(dataProvider = "negative", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  69     public void testNegativeReadPrimitiveConstant(JavaKind kind, Constant base) {
  70         PROVIDER.readPrimitiveConstant(kind, base, 0L, kind == null ? 0 : kind.getByteCount() / 8);
  71     }
  72 
  73     @Test(dataProvider = "outOfBoundsInstanceFields", dataProviderClass = MemoryAccessProviderData.class)
  74     public void testReadPrimitiveInstanceFieldOutOfBounds(JavaKind kind, Constant base, Long offset, boolean isOutOfBounds) {
  75         try {
  76             PROVIDER.readPrimitiveConstant(kind, base, offset, kind.getByteCount() * 8);
  77             Assert.assertFalse(isOutOfBounds);
  78         } catch (IllegalArgumentException iae) {
  79             Assert.assertTrue(isOutOfBounds);
  80         }
  81     }
  82 
  83     @Test(dataProvider = "outOfBoundsStaticFields", dataProviderClass = MemoryAccessProviderData.class)
  84     public void testReadPrimitiveStaticFieldOutOFBounds(JavaKind kind, Constant base, Long offset, boolean isOutOfBounds) {
  85         try {
  86             PROVIDER.readPrimitiveConstant(kind, base, offset, kind.getByteCount() * 8);
  87             Assert.assertFalse(isOutOfBounds);
  88         } catch (IllegalArgumentException iae) {
  89             Assert.assertTrue(isOutOfBounds);
  90         }
  91     }
  92 
  93     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  94     public void testObjectReadPrimitiveConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
  95         PROVIDER.readPrimitiveConstant(kind, base, 0L, bitsCount);
  96     }
  97 
  98     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
  99     public void testReadPrimitiveConstantLessBits(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 100         PROVIDER.readPrimitiveConstant(kind, base, offset, bitsCount - 1);
 101     }
 102 
 103     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 104     public void testPositiveReadObjectConstant(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 105         Assert.assertEquals(PROVIDER.readObjectConstant(base, offset), expected, "Unexpected result");
 106     }
 107 
 108     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 109     public void testNegativeReadObjectConstantNullBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 110         Assert.assertNull(PROVIDER.readObjectConstant(null, offset), "Unexpected return");
 111     }
 112 
 113     @Test(dataProvider = "positiveObject", dataProviderClass = MemoryAccessProviderData.class)
 114     public void testNegativeReadObjectConstantWrongOffset(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 115         Assert.assertNull(PROVIDER.readObjectConstant(base, offset + 1), "Expected null");
 116     }
 117 
 118     @Test(dataProvider = "positivePrimitive", dataProviderClass = MemoryAccessProviderData.class, expectedExceptions = {IllegalArgumentException.class})
 119     public void testNegativeReadObjectConstantPrimitiveBase(JavaKind kind, Constant base, Long offset, Object expected, int bitsCount) {
 120         Assert.assertNull(PROVIDER.readObjectConstant(base, offset), "Expected null");
 121     }
 122 }