1 /*
2 * Copyright (c) 2016, 2019, 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 * @summary AOT methods should be swept if a super class has changed.
27 * @library /test/lib /
28 * @modules java.base/jdk.internal.misc
29 * java.management
30 * @requires vm.aot
31 * @build compiler.aot.fingerprint.SelfChanged
32 * compiler.aot.AotCompiler
33 *
34 * @run main
35 * compiler.aot.fingerprint.SelfChanged WRITE-UNMODIFIED-CLASS
36 * @run driver compiler.aot.AotCompiler -libname libSelfChanged.so
37 * -class compiler.aot.fingerprint.Blah
38 *
39 * @run main/othervm
40 * compiler.aot.fingerprint.SelfChanged TEST-UNMODIFIED
41 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseAOT -XX:+PrintAOT
42 * -XX:AOTLibrary=./libSelfChanged.so
43 * -Xlog:aot+class+fingerprint=trace -Xlog:aot+class+load=trace
44 * compiler.aot.fingerprint.SelfChanged TEST-UNMODIFIED
45 *
46 * @run main
47 * compiler.aot.fingerprint.SelfChanged WRITE-MODIFIED-CLASS
48 * @run main
49 * compiler.aot.fingerprint.SelfChanged TEST-MODIFIED
50 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseAOT -XX:+PrintAOT
51 * -XX:AOTLibrary=./libSelfChanged.so
52 * -Xlog:aot+class+fingerprint=trace -Xlog:aot+class+load=trace
53 * compiler.aot.fingerprint.SelfChanged TEST-MODIFIED
54 */
55
56 package compiler.aot.fingerprint;
57
58 import jdk.test.lib.Asserts;
59 import jdk.test.lib.compiler.InMemoryJavaCompiler;
60
61 import java.io.*;
62
63 class Blah {
64 volatile int z;
65 int getX() {
66 for (z = 0; z < 10000; z++) {
67 if (z % 7 == 1) {
68 z += 2;
69 }
70 }
71 return 0;
72 }
73 }
74
75 public class SelfChanged {
76 public static void main(String args[]) throws Throwable {
77 Blah f = new Blah();
78 System.out.println("f.getX = " + f.getX());
79 switch (args[0]) {
80 case "WRITE-UNMODIFIED-CLASS":
81 compileClass(false);
82 break;
83 case "WRITE-MODIFIED-CLASS":
84 compileClass(true);
85 break;
86 case "TEST-UNMODIFIED":
87 Asserts.assertTrue(f.getX() == 0, "getX from unmodified Blah class should return 0");
88 break;
89 case "TEST-MODIFIED":
90 Asserts.assertTrue(f.getX() == 1, "getX from modified Blah class should return 1");
91 break;
92 default:
93 throw new RuntimeException("unexpected option: " + args[0]);
94 }
95 }
96
97 static void compileClass(boolean isModified) throws Throwable {
98 String src =
99 "package compiler.aot.fingerprint;"
100 + "public class Blah {"
101 + " volatile int z;"
102 + " int getX() {"
103 + " for (z = 0; z < 10000; z++) {"
104 + " if (z % 7 == 1) {"
105 + " z += 2;"
106 + " }"
107 + " }"
108 + " return " + ((isModified) ? "1" : "0") + ";"
109 + " }"
110 + " int getY() {return 255;}"
111
112 // The following is for the SelfChangedCDS.java test case. We always load an unmodified
113 // version of Blah from the CDS archive. However, we would load an AOT library that
114 // was compiled using a modified version of Blah. The getX method in this AOT library should
115 // not be used.
116
117 + " public static void main(String args[]) {"
118 + " Blah b = new Blah();"
119 + " int n = b.getX();"
120 + " if (n != 0) {"
121 + " throw new RuntimeException(args[0] + \" : \" + n);"
122 + " }"
123 + " System.out.println(\"PASSED\");"
124 + " }"
125 + "}";
126
127 String filename = System.getProperty("test.classes") + "/compiler/aot/fingerprint/Blah.class";
128 FileOutputStream fos = new FileOutputStream(filename);
129 fos.write(InMemoryJavaCompiler.compile("compiler.aot.fingerprint.Blah", src));
130 fos.close();
131 }
132 }