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 os.simpleArch == "x64" & os.arch != "aarch64" & os.family == "linux" 31 * @build compiler.aot.fingerprint.SelfChanged 32 * compiler.aot.AotCompiler 33 * 34 * @run main 35 * compiler.aot.fingerprint.SelfChanged WRITE-UNMODIFIED-CLASS 36 * @run main/othervm 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:+UseAOT -XX:+PrintAOT -XX:AOTLibrary=./libSelfChanged.so 42 * -Xlog:aotclassfingerprint=trace -Xlog:aotclassload=trace 43 * compiler.aot.fingerprint.SelfChanged TEST-UNMODIFIED 44 * 45 * @run main 46 * compiler.aot.fingerprint.SelfChanged WRITE-MODIFIED-CLASS 47 * @run main 48 * compiler.aot.fingerprint.SelfChanged TEST-MODIFIED 49 * @run main/othervm -XX:+UseAOT -XX:+PrintAOT -XX:AOTLibrary=./libSelfChanged.so 50 * -Xlog:aotclassfingerprint=trace -Xlog:aotclassload=trace 51 * compiler.aot.fingerprint.SelfChanged 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 Blah { 62 volatile int z; 63 int getX() { 64 for (z = 0; z < 10000; z++) { 65 if (z % 7 == 1) { 66 z += 2; 67 } 68 } 69 return 0; 70 } 71 } 72 73 public class SelfChanged { 74 public static void main(String args[]) throws Throwable { 75 Blah f = new Blah(); 76 System.out.println("f.getX = " + f.getX()); 77 switch (args[0]) { 78 case "WRITE-UNMODIFIED-CLASS": 79 compileClass(false); 80 break; 81 case "WRITE-MODIFIED-CLASS": 82 compileClass(true); 83 break; 84 case "TEST-UNMODIFIED": 85 Asserts.assertTrue(f.getX() == 0, "getX from unmodified Blah class should return 0"); 86 break; 87 case "TEST-MODIFIED": 88 Asserts.assertTrue(f.getX() == 1, "getX from modified Blah class should return 1"); 89 break; 90 default: 91 throw new RuntimeException("unexpected option: " + args[0]); 92 } 93 } 94 95 static void compileClass(boolean isModified) throws Throwable { 96 String src = 97 "package compiler.aot.fingerprint;" 98 + "public class Blah {" 99 + " volatile int z;" 100 + " int getX() {" 101 + " for (z = 0; z < 10000; z++) {" 102 + " if (z % 7 == 1) {" 103 + " z += 2;" 104 + " }" 105 + " }" 106 + " return " + ((isModified) ? "1" : "0") + ";" 107 + " }" 108 + " int getY() {return 255;}" 109 110 // The following is for the SelfChangedCDS.java test case. We always load an unmodified 111 // version of Blah from the CDS archive. However, we would load an AOT library that 112 // was compiled using a modified version of Blah. The getX method in this AOT library should 113 // not be used. 114 115 + " public static void main(String args[]) {" 116 + " Blah b = new Blah();" 117 + " int n = b.getX();" 118 + " if (n != 0) {" 119 + " throw new RuntimeException(args[0] + \" : \" + n);" 120 + " }" 121 + " System.out.println(\"PASSED\");" 122 + " }" 123 + "}"; 124 125 String filename = System.getProperty("test.classes") + "/compiler/aot/fingerprint/Blah.class"; 126 FileOutputStream fos = new FileOutputStream(filename); 127 fos.write(InMemoryJavaCompiler.compile("compiler.aot.fingerprint.Blah", src)); 128 fos.close(); 129 } 130 }