1 /* 2 * Copyright (c) 2015, 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 8136421 27 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64" 28 * @library / /testlibrary /../../test/lib 29 * @compile ../common/CompilerToVMHelper.java 30 * @build compiler.jvmci.compilerToVM.GetResolvedJavaMethodTest 31 * @run main ClassFileInstaller 32 * sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * jdk.vm.ci.hotspot.CompilerToVMHelper 35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockExperimentalVMOptions 36 * -XX:+EnableJVMCI -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 37 * compiler.jvmci.compilerToVM.GetResolvedJavaMethodTest 38 */ 39 40 package compiler.jvmci.compilerToVM; 41 42 import jdk.vm.ci.hotspot.CompilerToVMHelper; 43 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl; 44 import jdk.vm.ci.hotspot.MetaspaceWrapperObject; 45 import jdk.test.lib.Asserts; 46 import jdk.test.lib.Utils; 47 import sun.hotspot.WhiteBox; 48 import sun.misc.Unsafe; 49 50 import java.lang.reflect.Field; 51 52 public class GetResolvedJavaMethodTest { 53 private static enum TestCase { 54 NULL_BASE { 55 @Override 56 HotSpotResolvedJavaMethodImpl getResolvedJavaMethod() { 57 return CompilerToVMHelper.getResolvedJavaMethod( 58 null, getPtrToMethod()); 59 } 60 }, 61 JAVA_METHOD_BASE { 62 @Override 63 HotSpotResolvedJavaMethodImpl getResolvedJavaMethod() { 64 HotSpotResolvedJavaMethodImpl methodInstance 65 = CompilerToVMHelper.getResolvedJavaMethodAtSlot( 66 TEST_CLASS, 0); 67 Field field; 68 try { 69 field = HotSpotResolvedJavaMethodImpl 70 .class.getDeclaredField("metaspaceMethod"); 71 field.setAccessible(true); 72 field.set(methodInstance, getPtrToMethod()); 73 } catch (ReflectiveOperationException e) { 74 throw new Error("TEST BUG : " + e, e); 75 } 76 return CompilerToVMHelper.getResolvedJavaMethod( 77 methodInstance, 0L); 78 } 79 }, 80 JAVA_METHOD_BASE_IN_TWO { 81 @Override 82 HotSpotResolvedJavaMethodImpl getResolvedJavaMethod() { 83 long ptr = getPtrToMethod(); 84 HotSpotResolvedJavaMethodImpl methodInstance 85 = CompilerToVMHelper.getResolvedJavaMethodAtSlot( 86 TEST_CLASS, 0); 87 Field field; 88 try { 89 field = HotSpotResolvedJavaMethodImpl 90 .class.getDeclaredField("metaspaceMethod"); 91 field.setAccessible(true); 92 field.set(methodInstance, ptr / 2L); 93 } catch (ReflectiveOperationException e) { 94 throw new Error("TESTBUG : " + e.getMessage(), e); 95 } 96 return CompilerToVMHelper.getResolvedJavaMethod(methodInstance, 97 ptr - ptr / 2L); 98 } 99 }, 100 JAVA_METHOD_BASE_ZERO { 101 @Override 102 HotSpotResolvedJavaMethodImpl getResolvedJavaMethod() { 103 long ptr = getPtrToMethod(); 104 HotSpotResolvedJavaMethodImpl methodInstance 105 = CompilerToVMHelper.getResolvedJavaMethodAtSlot( 106 TEST_CLASS, 0); 107 Field field; 108 try { 109 field = HotSpotResolvedJavaMethodImpl 110 .class.getDeclaredField("metaspaceMethod"); 111 field.setAccessible(true); 112 field.set(methodInstance, 0L); 113 } catch (ReflectiveOperationException e) { 114 throw new Error("TESTBUG : " + e.getMessage(), e); 115 } 116 return CompilerToVMHelper.getResolvedJavaMethod(methodInstance, 117 ptr); 118 } 119 } 120 ; 121 abstract HotSpotResolvedJavaMethodImpl getResolvedJavaMethod(); 122 } 123 124 private static final Unsafe UNSAFE = Utils.getUnsafe(); 125 private static final WhiteBox WB = WhiteBox.getWhiteBox(); 126 private static final Class<?> TEST_CLASS = GetResolvedJavaMethodTest.class; 127 private static final long PTR; 128 static { 129 HotSpotResolvedJavaMethodImpl method 130 = CompilerToVMHelper.getResolvedJavaMethodAtSlot(TEST_CLASS, 0); 131 PTR = method.getMetaspacePointer(); 132 } 133 134 private static long getPtrToMethod() { 135 Field field; 136 try { 137 field = TEST_CLASS.getDeclaredField("PTR"); 138 } catch (NoSuchFieldException e) { 139 throw new Error("TEST BUG : " + e, e); 140 } 141 Object base = UNSAFE.staticFieldBase(field); 142 return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field); 143 } 144 145 public void test(TestCase testCase) { 146 System.out.println(testCase.name()); 147 HotSpotResolvedJavaMethodImpl result = testCase.getResolvedJavaMethod(); 148 Asserts.assertNotNull(result, testCase + " : got null"); 149 Asserts.assertEQ(result.getDeclaringClass().mirror(), TEST_CLASS, 150 testCase + " : returned method has unexpected declaring class"); 151 } 152 153 public static void main(String[] args) { 154 GetResolvedJavaMethodTest test = new GetResolvedJavaMethodTest(); 155 for (TestCase testCase : TestCase.values()) { 156 test.test(testCase); 157 } 158 testObjectBase(); 159 testMetaspaceWrapperBase(); 160 } 161 162 private static void testMetaspaceWrapperBase() { 163 try { 164 HotSpotResolvedJavaMethodImpl method 165 = CompilerToVMHelper.getResolvedJavaMethod( 166 new MetaspaceWrapperObject() { 167 @Override 168 public long getMetaspacePointer() { 169 return getPtrToMethod(); 170 } 171 }, 0L); 172 throw new AssertionError("Test METASPACE_WRAPPER_BASE." 173 + " Expected IllegalArgumentException has not been caught"); 174 } catch (IllegalArgumentException iae) { 175 // expected 176 } 177 } 178 179 private static void testObjectBase() { 180 try { 181 HotSpotResolvedJavaMethodImpl method 182 = CompilerToVMHelper.getResolvedJavaMethod(new Object(), 0L); 183 throw new AssertionError("Test OBJECT_BASE." 184 + " Expected IllegalArgumentException has not been caught"); 185 } catch (IllegalArgumentException iae) { 186 // expected 187 } 188 } 189 }