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