1 /*
   2  * Copyright (c) 2009, 2014, 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 6589834
  27  * @summary Safepoint placed between stack pointer increment and decrement leads
  28  *          to interpreter's stack corruption after deoptimization.
  29  * @library /testlibrary /testlibrary/whitebox
  30  * @build ClassFileInstaller sun.hotspot.WhiteBox com.oracle.java.testlibrary.*
  31  *        Test_ia32 InlinedArrayCloneTestCase
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  35  *      -XX:+WhiteBoxAPI -XX:CompileOnly=InlinedArrayCloneTestCase
  36  *      -XX:CompileCommand=dontinline,InlinedArrayCloneTestCase.invokeArrayClone
  37  *      -XX:CompileCommand=inline,InlinedArrayCloneTestCase.verifyArguments
  38  *      -XX:+IgnoreUnrecognizedVMOptions -XX:+VerifyStack Test_ia32
  39  */
  40 
  41 import java.lang.reflect.Method;
  42 
  43 import com.oracle.java.testlibrary.Asserts;
  44 import sun.hotspot.WhiteBox;
  45 
  46 public class Test_ia32 {
  47     private static final int NUM_THREADS
  48             = Math.min(100, 2 * Runtime.getRuntime().availableProcessors());
  49     private static final int CLONE_LENGTH = 1000;
  50 
  51     private static WhiteBox wb = WhiteBox.getWhiteBox();
  52 
  53     private final LoadedClass[] ARRAY = new LoadedClass[Test_ia32.CLONE_LENGTH];
  54     private volatile boolean doSpin = true;
  55     private volatile boolean testFailed = false;
  56 
  57     public boolean continueExecution() {
  58         return doSpin;
  59     }
  60 
  61     public void stopExecution() {
  62         doSpin = false;
  63     }
  64 
  65     public boolean isTestFailed() {
  66         return testFailed;
  67     }
  68 
  69     public void setTestFailed() {
  70         this.testFailed = true;
  71         stopExecution();
  72     }
  73 
  74     public LoadedClass[] getArray() {
  75         return ARRAY;
  76     }
  77 
  78     public void runTest() {
  79         Thread[] threads = new Thread[Test_ia32.NUM_THREADS];
  80         Method method;
  81 
  82         try {
  83             method = InlinedArrayCloneTestCase.class.getDeclaredMethod(
  84                     "invokeArrayClone", LoadedClass[].class);
  85         } catch (NoSuchMethodException e) {
  86             throw new Error("Tested method not found", e);
  87         }
  88 
  89         Asserts.assertTrue(wb.isMethodCompilable(method),
  90                 "Method " + method.getName() + " should be compilable.");
  91 
  92         for (int i = 0; i < threads.length; i++) {
  93             threads[i] = new Thread(new InlinedArrayCloneTestCase(this));
  94             threads[i].start();
  95         }
  96 
  97         /*
  98          * Wait until InlinedArrayCloneTestCase::invokeArrayClone is compiled.
  99          */
 100         while (!wb.isMethodCompiled(method)) {
 101             Thread.yield();
 102         }
 103 
 104         /*
 105          * Load NotLoadedClass to cause deoptimization of
 106          * InlinedArrayCloneTestCase::invokeArrayClone due to invalidated
 107          * dependency.
 108          */
 109         try {
 110             Class.forName("NotLoadedClass");
 111         } catch (ClassNotFoundException e) {
 112             throw new Error("Unable to load class that invalidates "
 113                     + "CHA-dependency for method " + method.getName(), e);
 114         }
 115 
 116         stopExecution();
 117 
 118         for (Thread thread : threads) {
 119             try {
 120                 thread.join();
 121             } catch (InterruptedException e) {
 122                 throw new Error("Fail to join thread " + thread, e);
 123             }
 124         }
 125 
 126         Asserts.assertFalse(isTestFailed(), "Test failed.");
 127     }
 128 
 129     public static void main(String[] args) {
 130         new Test_ia32().runTest();
 131     }
 132 }
 133 
 134 class LoadedClass {
 135 }
 136 
 137 @SuppressWarnings("unused")
 138 class NotLoadedClass extends LoadedClass {
 139 }