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 (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
29 * @library /testlibrary /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 * @modules java.base/jdk.internal.org.objectweb.asm
33 * java.base/jdk.internal.org.objectweb.asm.tree
34 * jdk.vm.ci/jdk.vm.ci.hotspot
35 * jdk.vm.ci/jdk.vm.ci.code
36 *
37 * @ignore 8139700
38 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
39 * @build sun.hotspot.WhiteBox
40 * compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
41 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
42 * sun.hotspot.WhiteBox$WhiteBoxPermission
43 * @run main/othervm -Xbootclasspath/a:.
44 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
45 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
46 * compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
47 */
48
49 package compiler.jvmci.compilerToVM;
50
51 import jdk.test.lib.Asserts;
52 import jdk.test.lib.Utils;
53 import jdk.vm.ci.code.InstalledCode;
54 import jdk.vm.ci.hotspot.CompilerToVMHelper;
55 import sun.hotspot.code.NMethod;
56
57 import java.util.List;
58
59 public class DisassembleCodeBlobTest {
60
61 public static void main(String[] args) {
62 DisassembleCodeBlobTest test
63 = new DisassembleCodeBlobTest();
64 List<CompileCodeTestCase> testCases
65 = CompileCodeTestCase.generate(/* bci = */ -1);
66 testCases.addAll(CompileCodeTestCase.generate(/* bci = */ 0));
67 testCases.forEach(test::check);
68 testCases.stream().findAny().ifPresent(test::checkZero);
69 test.checkNull();
70 }
71
72 private void checkNull() {
73 Utils.runAndCheckException(
74 () -> CompilerToVMHelper.disassembleCodeBlob(null),
75 NullPointerException.class);
76 }
77
78 private void checkZero(CompileCodeTestCase testCase) {
79 System.out.println("checkZero for " + testCase);
80 testCase.deoptimize();
81 InstalledCode installedCode = testCase.toInstalledCode();
82 String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
83 Asserts.assertNull(str, testCase
84 + " : non-null return value for invalid installCode");
85 }
86
87 private void check(CompileCodeTestCase testCase) {
88 System.out.println(testCase);
89 // to have a clean state
90 NMethod nMethod = testCase.deoptimizeAndCompile();
91 if (nMethod == null) {
92 throw new Error(testCase + " : method is not compiled");
93 }
94 InstalledCode installedCode = testCase.toInstalledCode();
95 String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
96 if (str != null) {
97 Asserts.assertGT(str.length(), 0,
98 testCase + " : returned string has to be non-zero length");
99 }
100 String str2 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
101 Asserts.assertEQ(str, str2,
102 testCase + " : 2nd invocation returned different value");
103 }
104 }