| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8136421 |
| * @requires vm.jvmci |
| * @library / /test/lib |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc:+open |
| * @modules jdk.vm.ci/jdk.vm.ci.hotspot:+open |
| * |
| * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * jdk.vm.ci/jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject |
| * sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. |
| * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
| * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI |
| * compiler.jvmci.compilerToVM.GetResolvedJavaMethodTest |
| */ |
| |
| package compiler.jvmci.compilerToVM; |
| |
| import jdk.internal.misc.Unsafe; |
| import jdk.test.lib.Asserts; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject; |
| import sun.hotspot.WhiteBox; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| |
| public class GetResolvedJavaMethodTest { |
| private static enum TestCase { |
| NULL_BASE { |
| @Override |
| HotSpotResolvedJavaMethod getResolvedJavaMethod() { |
| return CompilerToVMHelper.getResolvedJavaMethod( |
| null, getPtrToMethod()); |
| } |
| }, |
| JAVA_METHOD_BASE { |
| @Override |
| HotSpotResolvedJavaMethod getResolvedJavaMethod() { |
| HotSpotResolvedJavaMethod methodInstance = TEST_METHOD; |
| try { |
| METASPACE_METHOD_FIELD.set(methodInstance, |
| getPtrToMethod()); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TEST BUG : " + e, e); |
| } |
| return CompilerToVMHelper.getResolvedJavaMethod( |
| methodInstance, 0L); |
| } |
| }, |
| JAVA_METHOD_BASE_IN_TWO { |
| @Override |
| HotSpotResolvedJavaMethod getResolvedJavaMethod() { |
| long ptr = getPtrToMethod(); |
| HotSpotResolvedJavaMethod methodInstance = TEST_METHOD; |
| try { |
| METASPACE_METHOD_FIELD.set(methodInstance, ptr / 2L); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e, e); |
| } |
| return CompilerToVMHelper.getResolvedJavaMethod(methodInstance, |
| ptr - ptr / 2L); |
| } |
| }, |
| JAVA_METHOD_BASE_ZERO { |
| @Override |
| HotSpotResolvedJavaMethod getResolvedJavaMethod() { |
| long ptr = getPtrToMethod(); |
| HotSpotResolvedJavaMethod methodInstance = TEST_METHOD; |
| try { |
| METASPACE_METHOD_FIELD.set(methodInstance, 0L); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e, e); |
| } |
| return CompilerToVMHelper.getResolvedJavaMethod(methodInstance, |
| ptr); |
| } |
| } |
| ; |
| abstract HotSpotResolvedJavaMethod getResolvedJavaMethod(); |
| } |
| |
| private static final Unsafe UNSAFE = Unsafe.getUnsafe(); |
| private static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| private static final Field METASPACE_METHOD_FIELD; |
| private static final Class<?> TEST_CLASS = GetResolvedJavaMethodTest.class; |
| private static final HotSpotResolvedJavaMethod TEST_METHOD; |
| private static final long PTR; |
| static { |
| try { |
| Method method = TEST_CLASS.getDeclaredMethod("test", TestCase.class); |
| TEST_METHOD = CompilerToVMHelper.asResolvedJavaMethod(method); |
| } catch (NoSuchMethodException e) { |
| throw new Error("TESTBUG : " + e, e); |
| } |
| try { |
| // jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl.metaspaceMethod |
| METASPACE_METHOD_FIELD = TEST_METHOD.getClass() |
| .getDeclaredField("metaspaceMethod"); |
| METASPACE_METHOD_FIELD.setAccessible(true); |
| PTR = (long) METASPACE_METHOD_FIELD.get(TEST_METHOD); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e, e); |
| } |
| |
| } |
| |
| private static long getPtrToMethod() { |
| Field field; |
| try { |
| field = TEST_CLASS.getDeclaredField("PTR"); |
| } catch (NoSuchFieldException e) { |
| throw new Error("TEST BUG : " + e, e); |
| } |
| Object base = UNSAFE.staticFieldBase(field); |
| return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field); |
| } |
| |
| public void test(TestCase testCase) { |
| System.out.println(testCase.name()); |
| HotSpotResolvedJavaMethod result = testCase.getResolvedJavaMethod(); |
| Asserts.assertNotNull(result, testCase + " : got null"); |
| Asserts.assertEQ(TEST_CLASS, |
| CompilerToVMHelper.getMirror(result.getDeclaringClass()), |
| testCase + " : unexpected declaring class"); |
| } |
| |
| public static void main(String[] args) { |
| GetResolvedJavaMethodTest test = new GetResolvedJavaMethodTest(); |
| for (TestCase testCase : TestCase.values()) { |
| test.test(testCase); |
| } |
| testObjectBase(); |
| testMetaspaceWrapperBase(); |
| } |
| |
| private static void testMetaspaceWrapperBase() { |
| try { |
| HotSpotResolvedJavaMethod method |
| = CompilerToVMHelper.getResolvedJavaMethod( |
| new PublicMetaspaceWrapperObject() { |
| @Override |
| public long getMetaspacePointer() { |
| return getPtrToMethod(); |
| } |
| }, 0L); |
| throw new AssertionError("Test METASPACE_WRAPPER_BASE." |
| + " Expected IllegalArgumentException has not been caught"); |
| } catch (IllegalArgumentException e) { |
| // expected |
| } |
| } |
| |
| private static void testObjectBase() { |
| try { |
| HotSpotResolvedJavaMethod method |
| = CompilerToVMHelper.getResolvedJavaMethod(new Object(), 0L); |
| throw new AssertionError("Test OBJECT_BASE." |
| + " Expected IllegalArgumentException has not been caught"); |
| } catch (IllegalArgumentException e) { |
| // expected |
| } |
| } |
| } |