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 }