| /* |
| * Copyright (c) 2015, 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.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64") |
| * @library /testlibrary /test/lib / |
| * @library ../common/patches |
| * @modules java.base/jdk.internal.misc |
| * @modules jdk.vm.ci/jdk.vm.ci.hotspot |
| * jdk.vm.ci/jdk.vm.ci.meta |
| * |
| * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper |
| * @build jdk.vm.ci/jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject |
| * @build compiler.jvmci.compilerToVM.GetConstantPoolTest |
| * @build 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.GetConstantPoolTest |
| */ |
| package compiler.jvmci.compilerToVM; |
| |
| import java.lang.reflect.Field; |
| import jdk.vm.ci.meta.ConstantPool; |
| import jdk.vm.ci.hotspot.CompilerToVMHelper; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; |
| import jdk.vm.ci.hotspot.PublicMetaspaceWrapperObject; |
| import jdk.test.lib.Utils; |
| import sun.hotspot.WhiteBox; |
| import jdk.internal.misc.Unsafe; |
| |
| /** |
| * Tests for jdk.vm.ci.hotspot.CompilerToVM::getConstantPool method |
| */ |
| public class GetConstantPoolTest { |
| private static enum TestCase { |
| NULL_BASE { |
| @Override |
| ConstantPool getConstantPool() { |
| return CompilerToVMHelper.getConstantPool(null, |
| getPtrToCpAddress()); |
| } |
| }, |
| JAVA_METHOD_BASE { |
| @Override |
| ConstantPool getConstantPool() { |
| HotSpotResolvedJavaMethod methodInstance |
| = CompilerToVMHelper.getResolvedJavaMethodAtSlot( |
| TEST_CLASS, 0); |
| Field field; |
| try { |
| // jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl.metaspaceMethod |
| field = methodInstance.getClass() |
| .getDeclaredField("metaspaceMethod"); |
| field.setAccessible(true); |
| field.set(methodInstance, getPtrToCpAddress()); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e, e); |
| } |
| |
| return CompilerToVMHelper.getConstantPool(methodInstance, 0L); |
| } |
| }, |
| CONSTANT_POOL_BASE { |
| @Override |
| ConstantPool getConstantPool() { |
| ConstantPool cpInst; |
| try { |
| cpInst = CompilerToVMHelper.getConstantPool(null, |
| getPtrToCpAddress()); |
| Field field = CompilerToVMHelper.HotSpotConstantPoolClass() |
| .getDeclaredField("metaspaceConstantPool"); |
| field.setAccessible(true); |
| field.set(cpInst, getPtrToCpAddress()); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e.getMessage(), e); |
| } |
| return CompilerToVMHelper.getConstantPool(cpInst, 0L); |
| } |
| }, |
| CONSTANT_POOL_BASE_IN_TWO { |
| @Override |
| ConstantPool getConstantPool() { |
| long ptr = getPtrToCpAddress(); |
| ConstantPool cpInst; |
| try { |
| cpInst = CompilerToVMHelper.getConstantPool(null, ptr); |
| Field field = CompilerToVMHelper.HotSpotConstantPoolClass() |
| .getDeclaredField("metaspaceConstantPool"); |
| field.setAccessible(true); |
| field.set(cpInst, ptr / 2L); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e.getMessage(), e); |
| } |
| return CompilerToVMHelper.getConstantPool(cpInst, |
| ptr - ptr / 2L); |
| } |
| }, |
| CONSTANT_POOL_BASE_ZERO { |
| @Override |
| ConstantPool getConstantPool() { |
| long ptr = getPtrToCpAddress(); |
| ConstantPool cpInst; |
| try { |
| cpInst = CompilerToVMHelper.getConstantPool(null, ptr); |
| Field field = CompilerToVMHelper.HotSpotConstantPoolClass() |
| .getDeclaredField("metaspaceConstantPool"); |
| field.setAccessible(true); |
| field.set(cpInst, 0L); |
| } catch (ReflectiveOperationException e) { |
| throw new Error("TESTBUG : " + e.getMessage(), e); |
| } |
| return CompilerToVMHelper.getConstantPool(cpInst, ptr); |
| } |
| }, |
| ; |
| abstract ConstantPool getConstantPool(); |
| } |
| |
| private static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| private static final Unsafe UNSAFE = Utils.getUnsafe(); |
| |
| private static final Class TEST_CLASS = GetConstantPoolTest.class; |
| private static final long CP_ADDRESS |
| = WB.getConstantPool(GetConstantPoolTest.class); |
| |
| public void test(TestCase testCase) { |
| System.out.println(testCase.name()); |
| ConstantPool cp = testCase.getConstantPool(); |
| String cpStringRep = cp.toString(); |
| String cpClassSimpleName |
| = CompilerToVMHelper.HotSpotConstantPoolClass().getSimpleName(); |
| if (!cpStringRep.contains(cpClassSimpleName) |
| || !cpStringRep.contains(TEST_CLASS.getName())) { |
| String msg = String.format("%s : " |
| + " Constant pool is not valid." |
| + " String representation should contain \"%s\" and \"%s\"", |
| testCase.name(), cpClassSimpleName, |
| TEST_CLASS.getName()); |
| throw new AssertionError(msg); |
| } |
| } |
| |
| public static void main(String[] args) { |
| GetConstantPoolTest test = new GetConstantPoolTest(); |
| for (TestCase testCase : TestCase.values()) { |
| test.test(testCase); |
| } |
| testObjectBase(); |
| testMetaspaceWrapperBase(); |
| } |
| |
| private static void testObjectBase() { |
| try { |
| Object cp = CompilerToVMHelper.getConstantPool(new Object(), 0L); |
| throw new AssertionError("Test OBJECT_BASE." |
| + " Expected IllegalArgumentException has not been caught"); |
| } catch (IllegalArgumentException iae) { |
| // expected |
| } |
| } |
| private static void testMetaspaceWrapperBase() { |
| try { |
| Object cp = CompilerToVMHelper.getConstantPool( |
| new PublicMetaspaceWrapperObject() { |
| @Override |
| public long getMetaspacePointer() { |
| return getPtrToCpAddress(); |
| } |
| }, 0L); |
| throw new AssertionError("Test METASPACE_WRAPPER_BASE." |
| + " Expected IllegalArgumentException has not been caught"); |
| } catch (IllegalArgumentException iae) { |
| // expected |
| } |
| } |
| |
| private static long getPtrToCpAddress() { |
| Field field; |
| try { |
| field = TEST_CLASS.getDeclaredField("CP_ADDRESS"); |
| } catch (NoSuchFieldException nsfe) { |
| throw new Error("TESTBUG : cannot find field \"CP_ADDRESS\" : " |
| + nsfe.getMessage(), nsfe); |
| } |
| Object base = UNSAFE.staticFieldBase(field); |
| return WB.getObjectAddress(base) + UNSAFE.staticFieldOffset(field); |
| } |
| } |