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 }