DisassembleCodeBlobTest.java revision 10420:c558850fac57 
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 * @library ../common/patches
31 * @modules java.base/jdk.internal.org.objectweb.asm
32 *          java.base/jdk.internal.org.objectweb.asm.tree
33 *          jdk.vm.ci/jdk.vm.ci.hotspot
34 *          jdk.vm.ci/jdk.vm.ci.code
35 * @ignore 8139700
36 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
37 * @build sun.hotspot.WhiteBox
38 *        compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
39 * @run main ClassFileInstaller sun.hotspot.WhiteBox
40 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
41 * @run main/othervm -Xbootclasspath/a:.
42 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
43 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
44 *                   compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
45 */
46
47package compiler.jvmci.compilerToVM;
48
49import jdk.vm.ci.hotspot.CompilerToVMHelper;
50import jdk.vm.ci.code.InstalledCode;
51import jdk.test.lib.Asserts;
52import sun.hotspot.code.NMethod;
53
54import java.util.List;
55import jdk.test.lib.Utils;
56
57public class DisassembleCodeBlobTest {
58
59    public static void main(String[] args) {
60        DisassembleCodeBlobTest test
61                = new DisassembleCodeBlobTest();
62        List<CompileCodeTestCase> testCases
63                = CompileCodeTestCase.generate(/* bci = */ -1);
64        testCases.addAll(CompileCodeTestCase.generate(/* bci = */ 0));
65        testCases.forEach(test::check);
66        testCases.stream().findAny().ifPresent(test::checkZero);
67        test.checkNull();
68    }
69
70    private void checkNull() {
71        Utils.runAndCheckException(
72                () -> CompilerToVMHelper.disassembleCodeBlob(null),
73                NullPointerException.class);
74    }
75
76    private void checkZero(CompileCodeTestCase testCase) {
77        System.out.println("checkZero for " + testCase);
78        testCase.deoptimize();
79        InstalledCode installedCode = testCase.toInstalledCode();
80        String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
81        Asserts.assertNull(str, testCase
82                + " : non-null return value for invalid installCode");
83    }
84
85    private void check(CompileCodeTestCase testCase) {
86        System.out.println(testCase);
87        // to have a clean state
88        NMethod nMethod = testCase.deoptimizeAndCompile();
89        if (nMethod == null) {
90            throw new Error(testCase + " : method is not compiled");
91        }
92        InstalledCode installedCode = testCase.toInstalledCode();
93        String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
94        if (str != null) {
95            Asserts.assertGT(str.length(), 0,
96                   testCase +  " : returned string has to be non-zero length");
97        }
98        String str2 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
99        Asserts.assertEQ(str, str2,
100                testCase + " : 2nd invocation returned different value");
101    }
102}
103