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 * @test 26 * @bug 8136421 27 * @requires vm.jvmci 28 * @library /test/lib / 29 * @modules java.base/jdk.internal.misc:open 30 * @modules jdk.vm.ci/jdk.vm.ci.hotspot:open 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.test.lib.Asserts; 46 import jdk.vm.ci.runtime.JVMCI; 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 }