1 /*
   2  * Copyright (c) 2015, 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 /*
  26  * @test
  27  * @bug 8136421
  28  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64")
  29  * @library /testlibrary /
  30  * @modules jdk.vm.ci/jdk.vm.ci.hotspot
  31  *          jdk.vm.ci/jdk.vm.ci.runtime
  32  * @run main/othervm -XX:+UnlockExperimentalVMOptions
  33  *      -Dcompiler.jvmci.compilerToVM.JVM_RegisterJVMCINatives.positive=true
  34  *      -XX:+EnableJVMCI
  35  *      compiler.jvmci.compilerToVM.JVM_RegisterJVMCINatives
  36  * @run main/othervm -XX:+UnlockExperimentalVMOptions
  37  *      -Dcompiler.jvmci.compilerToVM.JVM_RegisterJVMCINatives.positive=false
  38  *      -XX:-EnableJVMCI
  39  *      compiler.jvmci.compilerToVM.JVM_RegisterJVMCINatives
  40 
  41  */
  42 
  43 package compiler.jvmci.compilerToVM;
  44 
  45 import jdk.vm.ci.runtime.JVMCI;
  46 import jdk.test.lib.Asserts;
  47 
  48 import java.lang.reflect.Method;
  49 
  50 public class JVM_RegisterJVMCINatives {
  51     private static final boolean IS_POSITIVE = Boolean.getBoolean(
  52             "compiler.jvmci.compilerToVM.JVM_RegisterJVMCINatives.positive");
  53 
  54     private final Method registerNatives;
  55 
  56     public static void main(String[] args) {
  57         new JVM_RegisterJVMCINatives().runTest();
  58     }
  59 
  60     private void runTest() {
  61         Object result;
  62         try {
  63             result = invoke();
  64         } catch (InternalError e) {
  65             if (IS_POSITIVE) {
  66                 throw new AssertionError("unexpected exception", e);
  67             }
  68             return;
  69         }
  70         if (!IS_POSITIVE) {
  71             throw new AssertionError("didn't get expected exception");
  72         }
  73         Asserts.assertNull(result,
  74                 "registerNatives()V returned non-null");
  75         Asserts.assertEQ(result, invoke(),
  76                 "registerNatives returns different results");
  77 
  78     }
  79     private Object invoke() {
  80         Object result;
  81         try {
  82             result = registerNatives.invoke(JVMCI.class);
  83         } catch (ReflectiveOperationException e) {
  84             throw new Error("can't invoke registerNatives", e);
  85         }
  86         return result;
  87     }
  88 
  89     private JVM_RegisterJVMCINatives() {
  90         Method method;
  91         try {
  92             method = Class.forName("jdk.vm.ci.hotspot.CompilerToVM",
  93                     /* initialize = */ false,
  94                     this.getClass().getClassLoader())
  95                     .getDeclaredMethod("registerNatives");
  96             method.setAccessible(true);
  97         } catch (ReflectiveOperationException e) {
  98             throw new Error("can't find CompilerToVM::registerNatives", e);
  99         }
 100         registerNatives = method;
 101     }
 102 }