1 /* 2 * Copyright (c) 2015, 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 8136421 27 * @requires vm.jvmci 28 * @library /test/lib / 29 * @library ../common/patches 30 * @modules java.base/jdk.internal.misc 31 * @modules java.base/jdk.internal.org.objectweb.asm 32 * java.base/jdk.internal.org.objectweb.asm.tree 33 * jdk.internal.vm.ci/jdk.vm.ci.hotspot 34 * jdk.internal.vm.ci/jdk.vm.ci.code 35 * @clean compiler.jvmci.compilerToVM.* 36 * @compile -g DummyInterface.java 37 * @compile -g DummyAbstractClass.java 38 * @compile -g DummyClass.java 39 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 40 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 41 * compiler.jvmci.compilerToVM.GetLocalVariableTableTest 42 * @clean compiler.jvmci.compilerToVM.* 43 */ 44 45 package compiler.jvmci.compilerToVM; 46 47 import compiler.jvmci.common.CTVMUtilities; 48 import jdk.test.lib.Asserts; 49 import jdk.vm.ci.hotspot.CompilerToVMHelper; 50 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 51 52 import java.lang.reflect.Executable; 53 import java.util.HashMap; 54 import java.util.Map; 55 56 public class GetLocalVariableTableTest { 57 58 public static final int MAIN_LOCALS_COUNT = 0; 59 public static final int INSTANCE_LOCALS_COUNT = 4; 60 public static final int EMPTY_INSTANCE_COUNT = 1; 61 public static final int EMPTY_STATIC_COUNT = 0; 62 public static final int ABSTRACT_INHERIT_LOCALS_COUNT = 2; 63 public static final int DEFAULTFUNC_LOCALS_COUNT = 4; 64 65 public static void main(String[] args) { 66 Map<Executable, Integer> testCases = createTestCases(); 67 testCases.forEach(GetLocalVariableTableTest::runSanityTest); 68 } 69 70 private static Map<Executable, Integer> createTestCases() { 71 HashMap<Executable, Integer> methods = new HashMap<>(); 72 try { 73 Class<?> aClass; 74 75 aClass = GetLocalVariableTableTest.class; 76 methods.put(aClass.getDeclaredMethod("main", String[].class), 77 MAIN_LOCALS_COUNT); 78 79 aClass = DummyClass.class; 80 methods.put(aClass.getMethod("dummyInstanceFunction"), 81 INSTANCE_LOCALS_COUNT); 82 methods.put(aClass.getMethod("dummyEmptyInstanceFunction"), 83 EMPTY_INSTANCE_COUNT); 84 methods.put(aClass.getMethod("dummyEmptyStaticFunction"), 85 EMPTY_STATIC_COUNT); 86 methods.put(aClass.getMethod("dummyFunction"), 87 EMPTY_INSTANCE_COUNT); 88 methods.put(aClass.getMethod("dummyAbstractFunction"), 89 ABSTRACT_INHERIT_LOCALS_COUNT); 90 91 aClass = DummyInterface.class; 92 methods.put(aClass.getMethod("dummyFunction"), EMPTY_STATIC_COUNT); 93 methods.put(aClass.getMethod("dummyDefaultFunction", int.class, 94 int.class), DEFAULTFUNC_LOCALS_COUNT); 95 96 aClass = DummyAbstractClass.class; 97 methods.put(aClass.getMethod("dummyAbstractFunction"), 0); 98 } catch (NoSuchMethodException e) { 99 throw new Error("TEST BUG", e); 100 } 101 return methods; 102 } 103 104 private static void runSanityTest(Executable aMethod, 105 Integer expectedTableLength) { 106 HotSpotResolvedJavaMethod method = CTVMUtilities 107 .getResolvedMethod(aMethod); 108 109 int tblLength = CompilerToVMHelper.getLocalVariableTableLength(method); 110 Asserts.assertEQ(tblLength, expectedTableLength, aMethod + " : incorrect " 111 + "local variable table length."); 112 113 long tblStart = CompilerToVMHelper.getLocalVariableTableStart(method); 114 if (tblLength > 0) { 115 Asserts.assertNE(tblStart, 0L, aMethod + " : local variable table starts" 116 + " at 0 with length " + tblLength); 117 } 118 } 119 }