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 /** 26 * @test 27 * @bug 8136421 28 * @requires (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64") 29 * @library /test/lib / 30 * @library ../common/patches 31 * @modules java.base/jdk.internal.misc 32 * @modules java.base/jdk.internal.org.objectweb.asm 33 * java.base/jdk.internal.org.objectweb.asm.tree 34 * jdk.vm.ci/jdk.vm.ci.hotspot 35 * jdk.vm.ci/jdk.vm.ci.code 36 * @clean compiler.jvmci.compilerToVM.* 37 * @compile -g DummyInterface.java 38 * @compile -g DummyAbstractClass.java 39 * @compile -g DummyClass.java 40 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 41 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 42 * compiler.jvmci.compilerToVM.GetLocalVariableTableTest 43 * @clean compiler.jvmci.compilerToVM.* 44 */ 45 46 package compiler.jvmci.compilerToVM; 47 48 import compiler.jvmci.common.CTVMUtilities; 49 import jdk.test.lib.Asserts; 50 import jdk.vm.ci.hotspot.CompilerToVMHelper; 51 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 52 53 import java.lang.reflect.Executable; 54 import java.util.HashMap; 55 import java.util.Map; 56 57 public class GetLocalVariableTableTest { 58 59 public static final int MAIN_LOCALS_COUNT = 0; 60 public static final int INSTANCE_LOCALS_COUNT = 4; 61 public static final int EMPTY_INSTANCE_COUNT = 1; 62 public static final int EMPTY_STATIC_COUNT = 0; 63 public static final int ABSTRACT_INHERIT_LOCALS_COUNT = 2; 64 public static final int DEFAULTFUNC_LOCALS_COUNT = 4; 65 66 public static void main(String[] args) { 67 Map<Executable, Integer> testCases = createTestCases(); 68 testCases.forEach(GetLocalVariableTableTest::runSanityTest); 69 } 70 71 private static Map<Executable, Integer> createTestCases() { 72 HashMap<Executable, Integer> methods = new HashMap<>(); 73 try { 74 Class<?> aClass; 75 76 aClass = GetLocalVariableTableTest.class; 77 methods.put(aClass.getDeclaredMethod("main", String[].class), 78 MAIN_LOCALS_COUNT); 79 80 aClass = DummyClass.class; 81 methods.put(aClass.getMethod("dummyInstanceFunction"), 82 INSTANCE_LOCALS_COUNT); 83 methods.put(aClass.getMethod("dummyEmptyInstanceFunction"), 84 EMPTY_INSTANCE_COUNT); 85 methods.put(aClass.getMethod("dummyEmptyStaticFunction"), 86 EMPTY_STATIC_COUNT); 87 methods.put(aClass.getMethod("dummyFunction"), 88 EMPTY_INSTANCE_COUNT); 89 methods.put(aClass.getMethod("dummyAbstractFunction"), 90 ABSTRACT_INHERIT_LOCALS_COUNT); 91 92 aClass = DummyInterface.class; 93 methods.put(aClass.getMethod("dummyFunction"), EMPTY_STATIC_COUNT); 94 methods.put(aClass.getMethod("dummyDefaultFunction", int.class, 95 int.class), DEFAULTFUNC_LOCALS_COUNT); 96 97 aClass = DummyAbstractClass.class; 98 methods.put(aClass.getMethod("dummyAbstractFunction"), 0); 99 } catch (NoSuchMethodException e) { 100 throw new Error("TEST BUG", e); 101 } 102 return methods; 103 } 104 105 private static void runSanityTest(Executable aMethod, 106 Integer expectedTableLength) { 107 HotSpotResolvedJavaMethod method = CTVMUtilities 108 .getResolvedMethod(aMethod); 109 110 int tblLength = CompilerToVMHelper.getLocalVariableTableLength(method); 111 Asserts.assertEQ(tblLength, expectedTableLength, aMethod + " : incorrect " 112 + "local variable table length."); 113 114 long tblStart = CompilerToVMHelper.getLocalVariableTableStart(method); 115 if (tblLength > 0) { 116 Asserts.assertNE(tblStart, 0L, aMethod + " : local variable table starts" 117 + " at 0 with length " + tblLength); 118 } 119 } 120 }