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 *
36 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
37 * @build sun.hotspot.WhiteBox
38 * compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
39 * @run driver 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
47 package compiler.jvmci.compilerToVM;
48
49 import jdk.test.lib.Asserts;
50 import jdk.test.lib.Utils;
51 import jdk.vm.ci.code.InstalledCode;
52 import jdk.vm.ci.hotspot.CompilerToVMHelper;
53 import sun.hotspot.code.NMethod;
54
55 import java.util.List;
56
57 public 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.forEach(test::check);
65 testCases.stream().findAny().ifPresent(test::checkZero);
66 test.checkNull();
67 }
68
69 private void checkNull() {
70 Utils.runAndCheckException(
71 () -> CompilerToVMHelper.disassembleCodeBlob(null),
72 NullPointerException.class);
73 }
74
75 private void checkZero(CompileCodeTestCase testCase) {
76 System.out.println("checkZero for " + testCase);
77 testCase.deoptimize();
78 InstalledCode installedCode = testCase.toInstalledCode();
79 String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
80 Asserts.assertNull(str, testCase
81 + " : non-null return value for invalid installCode");
82 }
83
84 private void check(CompileCodeTestCase testCase) {
85 System.out.println(testCase);
86 // to have a clean state
87 NMethod nMethod = testCase.deoptimizeAndCompile();
88 if (nMethod == null) {
89 throw new Error(testCase + " : method is not compiled");
90 }
91 InstalledCode installedCode = testCase.toInstalledCode();
92 String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
93 if (str != null) {
94 Asserts.assertGT(str.length(), 0,
95 testCase + " : returned string has to be non-zero length");
96 }
97 String str2 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
98 Asserts.assertEQ(str, str2,
99 testCase + " : 2nd invocation returned different value");
100 }
101 }