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