DisassembleCodeBlobTest.java revision 9287:40bd4478a362 
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 * @ignore 8139700
31 * @compile ../common/CompilerToVMHelper.java
32 * @build sun.hotspot.WhiteBox
33 *        compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
34 * @run main ClassFileInstaller sun.hotspot.WhiteBox
35 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
36 *                              jdk.vm.ci.hotspot.CompilerToVMHelper
37 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
38 *      -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
39 *      compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
40 */
41
42package compiler.jvmci.compilerToVM;
43
44import jdk.vm.ci.hotspot.CompilerToVMHelper;
45import jdk.vm.ci.code.InstalledCode;
46import jdk.test.lib.Asserts;
47import sun.hotspot.code.NMethod;
48
49import java.util.List;
50import jdk.test.lib.Utils;
51
52public class DisassembleCodeBlobTest {
53
54    public static void main(String[] args) {
55        DisassembleCodeBlobTest test
56                = new DisassembleCodeBlobTest();
57        List<CompileCodeTestCase> testCases
58                = CompileCodeTestCase.generate(/* bci = */ -1);
59        testCases.addAll(CompileCodeTestCase.generate(/* bci = */ 0));
60        testCases.forEach(test::check);
61        testCases.stream().findAny().ifPresent(test::checkZero);
62        test.checkNull();
63    }
64
65    private void checkNull() {
66        Utils.runAndCheckException(
67                () -> CompilerToVMHelper.disassembleCodeBlob(null),
68                NullPointerException.class);
69    }
70
71    private void checkZero(CompileCodeTestCase testCase) {
72        System.out.println("checkZero for " + testCase);
73        testCase.deoptimize();
74        InstalledCode installedCode = testCase.toInstalledCode();
75        String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
76        Asserts.assertNull(str, testCase
77                + " : non-null return value for invalid installCode");
78    }
79
80    private void check(CompileCodeTestCase testCase) {
81        System.out.println(testCase);
82        // to have a clean state
83        NMethod nMethod = testCase.deoptimizeAndCompile();
84        if (nMethod == null) {
85            throw new Error(testCase + " : method is not compiled");
86        }
87        InstalledCode installedCode = testCase.toInstalledCode();
88        String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
89        if (str != null) {
90            Asserts.assertGT(str.length(), 0,
91                   testCase +  " : returned string has to be non-zero length");
92        }
93        String str2 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
94        Asserts.assertEQ(str, str2,
95                testCase + " : 2nd invocation returned different value");
96    }
97}
98