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  *                   -Djvmci.Compiler=null

    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 }