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