1 /*
   2  * Copyright (c) 2009, 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  * @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 /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.compiler
  32  *          java.management
  33  *          jdk.jvmstat/sun.jvmstat.monitor
  34  * @build ClassFileInstaller sun.hotspot.WhiteBox jdk.test.lib.*
  35  *        Test_ia32 InlinedArrayCloneTestCase
  36  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  37  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  38  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  39  *      -XX:+WhiteBoxAPI -XX:CompileOnly=InlinedArrayCloneTestCase
  40  *      -XX:CompileCommand=dontinline,InlinedArrayCloneTestCase.invokeArrayClone
  41  *      -XX:CompileCommand=inline,InlinedArrayCloneTestCase.verifyArguments
  42  *      -XX:+IgnoreUnrecognizedVMOptions -XX:+VerifyStack Test_ia32
  43  */
  44 
  45 import java.lang.reflect.Method;
  46 
  47 import jdk.test.lib.Asserts;
  48 import sun.hotspot.WhiteBox;
  49 
  50 public class Test_ia32 {
  51     private static final int NUM_THREADS
  52             = Math.min(100, 2 * Runtime.getRuntime().availableProcessors());
  53     private static final int CLONE_LENGTH = 1000;
  54 
  55     private static WhiteBox wb = WhiteBox.getWhiteBox();
  56 
  57     private final LoadedClass[] ARRAY = new LoadedClass[Test_ia32.CLONE_LENGTH];
  58     private volatile boolean doSpin = true;
  59     private volatile boolean testFailed = false;
  60 
  61     public boolean continueExecution() {
  62         return doSpin;
  63     }
  64 
  65     public void stopExecution() {
  66         doSpin = false;
  67     }
  68 
  69     public boolean isTestFailed() {
  70         return testFailed;
  71     }
  72 
  73     public void setTestFailed() {
  74         this.testFailed = true;
  75         stopExecution();
  76     }
  77 
  78     public LoadedClass[] getArray() {
  79         return ARRAY;
  80     }
  81 
  82     public void runTest() {
  83         Thread[] threads = new Thread[Test_ia32.NUM_THREADS];
  84         Method method;
  85 
  86         try {
  87             method = InlinedArrayCloneTestCase.class.getDeclaredMethod(
  88                     "invokeArrayClone", LoadedClass[].class);
  89         } catch (NoSuchMethodException e) {
  90             throw new Error("Tested method not found", e);
  91         }
  92 
  93         Asserts.assertTrue(wb.isMethodCompilable(method),
  94                 "Method " + method.getName() + " should be compilable.");
  95 
  96         for (int i = 0; i < threads.length; i++) {
  97             threads[i] = new Thread(new InlinedArrayCloneTestCase(this));
  98             threads[i].start();
  99         }
 100 
 101         /*
 102          * Wait until InlinedArrayCloneTestCase::invokeArrayClone is compiled.
 103          */
 104         while (!wb.isMethodCompiled(method)) {
 105             Thread.yield();
 106         }
 107 
 108         /*
 109          * Load NotLoadedClass to cause deoptimization of
 110          * InlinedArrayCloneTestCase::invokeArrayClone due to invalidated
 111          * dependency.
 112          */
 113         try {
 114             Class.forName("NotLoadedClass");
 115         } catch (ClassNotFoundException e) {
 116             throw new Error("Unable to load class that invalidates "
 117                     + "CHA-dependency for method " + method.getName(), e);
 118         }
 119 
 120         stopExecution();
 121 
 122         for (Thread thread : threads) {
 123             try {
 124                 thread.join();
 125             } catch (InterruptedException e) {
 126                 throw new Error("Fail to join thread " + thread, e);
 127             }
 128         }
 129 
 130         Asserts.assertFalse(isTestFailed(), "Test failed.");
 131     }
 132 
 133     public static void main(String[] args) {
 134         new Test_ia32().runTest();
 135     }
 136 }
 137 
 138 class LoadedClass {
 139 }
 140 
 141 @SuppressWarnings("unused")
 142 class NotLoadedClass extends LoadedClass {
 143 }