GetLocalVariableTableTest.java revision 9814:22fd02fad88b 
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.simpleArch == "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
42package compiler.jvmci.compilerToVM;
43
44import compiler.jvmci.common.CTVMUtilities;
45import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
46import jdk.vm.ci.hotspot.CompilerToVMHelper;
47import jdk.test.lib.Asserts;
48
49import java.lang.reflect.Executable;
50import java.util.HashMap;
51import java.util.Map;
52
53public 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        HotSpotResolvedJavaMethod 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}
117