1 /* 2 * Copyright (c) 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 * @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.bits == "64" & os.arch == "amd64" & os.family == "linux" 31 * @build compiler.aot.fingerprint.SuperChanged 32 * compiler.aot.AotCompiler 33 * 34 * @run main 35 * compiler.aot.fingerprint.SuperChanged WRITE-UNMODIFIED-CLASS 36 * @run main/othervm compiler.aot.AotCompiler -libname libSuperChanged.so 37 * -class compiler.aot.fingerprint.Foo 38 * 39 * @run main 40 * compiler.aot.fingerprint.SuperChanged TEST-UNMODIFIED 41 * @run main/othervm -XX:+UseAOT -XX:+PrintAOT -XX:AOTLibrary=./libSuperChanged.so 42 * -Xlog:aot+class+fingerprint=trace -Xlog:aot+class+load=trace 43 * compiler.aot.fingerprint.SuperChanged TEST-UNMODIFIED 44 * 45 * @run main 46 * compiler.aot.fingerprint.SuperChanged WRITE-MODIFIED-CLASS 47 * @run main 48 * compiler.aot.fingerprint.SuperChanged TEST-MODIFIED 49 * @run main/othervm -XX:+UseAOT -XX:+PrintAOT -XX:AOTLibrary=./libSuperChanged.so 50 * -Xlog:aot+class+fingerprint=trace -Xlog:aot+class+load=trace 51 * compiler.aot.fingerprint.SuperChanged TEST-MODIFIED 52 */ 53 54 package compiler.aot.fingerprint; 55 56 import jdk.test.lib.Asserts; 57 import jdk.test.lib.InMemoryJavaCompiler; 58 59 import java.io.*; 60 61 class Bar { 62 volatile int x = 0; 63 volatile int y = 1; 64 } 65 66 class Foo extends Bar { 67 68 volatile int z; 69 int getX() { 70 for (z = 0; z < 10000; z++) { 71 if (z % 7 == 1) { 72 z += 2; 73 } 74 } 75 return x; 76 } 77 } 78 79 public class SuperChanged { 80 public static void main(String args[]) throws Throwable { 81 Foo f = new Foo(); 82 System.out.println("f.getX = " + f.getX()); 83 switch (args[0]) { 84 case "WRITE-UNMODIFIED-CLASS": 85 compileClass(false); 86 break; 87 case "WRITE-MODIFIED-CLASS": 88 compileClass(true); 89 break; 90 case "TEST-UNMODIFIED": 91 Asserts.assertTrue(f.getX() == 0, "getX from unmodified Foo class should return 0"); 92 break; 93 case "TEST-MODIFIED": 94 Asserts.assertTrue(f.getX() == 1, "getX from modified Foo class should return 1"); 95 break; 96 default: 97 throw new RuntimeException("unexpected option: " + args[0]); 98 } 99 } 100 101 static void compileClass(boolean isModified) throws Throwable { 102 String class_src_0 = "package compiler.aot.fingerprint; class Bar {volatile int x = 0; volatile int y = 1;}"; 103 String class_src_1 = "package compiler.aot.fingerprint; class Bar {volatile int y = 0; volatile int x = 1;}"; 104 String src = (isModified) ? class_src_1 : class_src_0; 105 106 String filename = System.getProperty("test.classes") + "/compiler/aot/fingerprint/Bar.class"; 107 FileOutputStream fos = new FileOutputStream(filename); 108 fos.write(InMemoryJavaCompiler.compile("compiler.aot.fingerprint.Bar", src)); 109 fos.close(); 110 } 111 }