1 /*
   2  * Copyright (c) 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 8136421
  27  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
  28  * @library / /testlibrary
  29  * @library ../common/patches
  30  * @modules jdk.vm.ci/jdk.vm.ci.hotspot
  31  *          jdk.vm.ci/jdk.vm.ci.code
  32  *          jdk.vm.ci/jdk.vm.ci.meta
  33  *          jdk.vm.ci/jdk.vm.ci.runtime
  34  * @build jdk.vm.ci/jdk.vm.ci.hotspot.MetaAccessWrapper
  35  * @build compiler.jvmci.common.JVMCIHelpers
  36  *     compiler.jvmci.events.JvmciCreateMetaAccessContextTest
  37  * @run main jdk.test.lib.FileInstaller ../common/services/ ./META-INF/services/
  38  * @run main jdk.test.lib.FileInstaller
  39  *     ./JvmciCreateMetaAccessContextTest.config
  40  *     ./META-INF/services/jdk.vm.ci.hotspot.HotSpotVMEventListener
  41  * @run main ClassFileInstaller
  42  *     compiler.jvmci.common.JVMCIHelpers$EmptyHotspotCompiler
  43  *     compiler.jvmci.common.JVMCIHelpers$EmptyCompilerFactory
  44  *     compiler.jvmci.events.JvmciCreateMetaAccessContextTest
  45  *     jdk.test.lib.Asserts
  46  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  47  *     -Xbootclasspath/a:.
  48  *     -Dcompiler.jvmci.events.JvmciCreateMetaAccessContextTest.providenull=true
  49  *     compiler.jvmci.events.JvmciCreateMetaAccessContextTest
  50  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  51  *     -Xbootclasspath/a:.
  52  *     -Dcompiler.jvmci.events.JvmciCreateMetaAccessContextTest.providenull=false
  53  *     compiler.jvmci.events.JvmciCreateMetaAccessContextTest
  54  */
  55 
  56 package compiler.jvmci.events;
  57 
  58 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
  59 import jdk.vm.ci.hotspot.HotSpotVMEventListener;
  60 import jdk.vm.ci.hotspot.MetaAccessWrapper;
  61 import jdk.vm.ci.meta.JVMCIMetaAccessContext;
  62 import jdk.test.lib.Asserts;
  63 
  64 public class JvmciCreateMetaAccessContextTest
  65         implements HotSpotVMEventListener {
  66     private static final boolean PROVIDE_NULL_CONTEXT = Boolean.getBoolean(
  67             "compiler.jvmci.events.JvmciCreateMetaAccessContextTest"
  68                     + ".providenull");
  69     private static volatile int createMetaAccessContextCount = 0;
  70     private static volatile String errorMessage = "";
  71 
  72     public static void main(String args[]) {
  73         if (createMetaAccessContextCount != 0) {
  74             throw new Error("Unexpected createMetaAccessContextevents count"
  75                     + " at test start");
  76         }
  77         JVMCIMetaAccessContext context;
  78         context = HotSpotJVMCIRuntime.runtime().getMetaAccessContext();
  79         Asserts.assertNotNull(context,
  80                 "JVMCIMetaAccessContext is null after 1st request");
  81         Asserts.assertEQ(createMetaAccessContextCount, 1,
  82                 "Unexpected createMetaAccessContext events count after 1st"
  83                         + " JVMCI runtime request");
  84         context = HotSpotJVMCIRuntime.runtime().getMetaAccessContext();
  85         Asserts.assertNotNull(context,
  86                 "JVMCIMetaAccessContext is null after 2nd request");
  87         Asserts.assertEQ(createMetaAccessContextCount, 1,
  88                 "Unexpected createMetaAccessContext events count after 2nd"
  89                         + " JVMCI runtime request");
  90         Asserts.assertTrue(errorMessage.isEmpty(), errorMessage);
  91         if (PROVIDE_NULL_CONTEXT) {
  92             Asserts.assertFalse(context instanceof MetaAccessWrapper,
  93                     "Got unexpected context: " + context.getClass());
  94         } else {
  95             Asserts.assertTrue(context instanceof MetaAccessWrapper,
  96                     "Got unexpected context: " + context.getClass());
  97         }
  98     }
  99 
 100     @Override
 101     public JVMCIMetaAccessContext createMetaAccessContext(HotSpotJVMCIRuntime
 102             hotSpotJVMCIRuntime) {
 103         createMetaAccessContextCount++;
 104         if (hotSpotJVMCIRuntime == null) {
 105             errorMessage += " HotSpotJVMCIRuntime is null.";
 106         }
 107         if (PROVIDE_NULL_CONTEXT) {
 108             return null;
 109         }
 110         return new MetaAccessWrapper();
 111     }
 112 }