| /* |
| * Copyright (c) 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. |
| */ |
| package org.graalvm.compiler.hotspot.stubs; |
| |
| import static org.graalvm.compiler.core.common.LocationIdentity.any; |
| import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.RegisterEffect.DESTROYS_REGISTERS; |
| import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Transition.SAFEPOINT; |
| import static org.graalvm.compiler.hotspot.meta.HotSpotForeignCallsProviderImpl.REEXECUTABLE; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.clearPendingException; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.registerAsWord; |
| import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.NativeCall; |
| |
| import org.graalvm.compiler.api.replacements.Fold; |
| import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; |
| import org.graalvm.compiler.graph.Node.ConstantNodeParameter; |
| import org.graalvm.compiler.graph.Node.NodeIntrinsic; |
| import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.hotspot.meta.HotSpotForeignCallsProviderImpl; |
| import org.graalvm.compiler.hotspot.meta.HotSpotProviders; |
| import org.graalvm.compiler.hotspot.nodes.StubForeignCallNode; |
| import org.graalvm.compiler.hotspot.word.KlassPointer; |
| import org.graalvm.compiler.replacements.nodes.CStringConstant; |
| import org.graalvm.compiler.word.Word; |
| |
| import jdk.vm.ci.code.Register; |
| |
| /** |
| * Base class for stubs that create a runtime exception. |
| */ |
| public class CreateExceptionStub extends SnippetStub { |
| |
| protected CreateExceptionStub(String snippetMethodName, HotSpotProviders providers, HotSpotForeignCallLinkage linkage) { |
| super(snippetMethodName, providers, linkage); |
| } |
| |
| @Fold |
| static String getInternalClassName(Class<?> cls) { |
| return cls.getName().replace('.', '/'); |
| } |
| |
| private static Word classAsCString(Class<?> cls) { |
| return CStringConstant.cstring(getInternalClassName(cls)); |
| } |
| |
| protected static Object createException(Register threadRegister, Class<? extends Throwable> exception) { |
| Word message = null; |
| return createException(threadRegister, exception, message); |
| } |
| |
| protected static Object createException(Register threadRegister, Class<? extends Throwable> exception, Word message) { |
| Word thread = registerAsWord(threadRegister); |
| throwAndPostJvmtiException(THROW_AND_POST_JVMTI_EXCEPTION, thread, classAsCString(exception), message); |
| return clearPendingException(thread); |
| } |
| |
| protected static Object createException(Register threadRegister, Class<? extends Throwable> exception, KlassPointer klass) { |
| Word thread = registerAsWord(threadRegister); |
| throwKlassExternalNameException(THROW_KLASS_EXTERNAL_NAME_EXCEPTION, thread, classAsCString(exception), klass); |
| return clearPendingException(thread); |
| } |
| |
| protected static Object createException(Register threadRegister, Class<? extends Throwable> exception, KlassPointer objKlass, KlassPointer targetKlass) { |
| Word thread = registerAsWord(threadRegister); |
| throwClassCastException(THROW_CLASS_CAST_EXCEPTION, thread, classAsCString(exception), objKlass, targetKlass); |
| return clearPendingException(thread); |
| } |
| |
| private static final ForeignCallDescriptor THROW_AND_POST_JVMTI_EXCEPTION = new ForeignCallDescriptor("throw_and_post_jvmti_exception", void.class, Word.class, Word.class, Word.class); |
| private static final ForeignCallDescriptor THROW_KLASS_EXTERNAL_NAME_EXCEPTION = new ForeignCallDescriptor("throw_klass_external_name_exception", void.class, Word.class, Word.class, |
| KlassPointer.class); |
| private static final ForeignCallDescriptor THROW_CLASS_CAST_EXCEPTION = new ForeignCallDescriptor("throw_class_cast_exception", void.class, Word.class, Word.class, KlassPointer.class, |
| KlassPointer.class); |
| |
| @NodeIntrinsic(StubForeignCallNode.class) |
| private static native void throwAndPostJvmtiException(@ConstantNodeParameter ForeignCallDescriptor d, Word thread, Word type, Word message); |
| |
| @NodeIntrinsic(StubForeignCallNode.class) |
| private static native void throwKlassExternalNameException(@ConstantNodeParameter ForeignCallDescriptor d, Word thread, Word type, KlassPointer klass); |
| |
| @NodeIntrinsic(StubForeignCallNode.class) |
| private static native void throwClassCastException(@ConstantNodeParameter ForeignCallDescriptor d, Word thread, Word type, KlassPointer objKlass, KlassPointer targetKlass); |
| |
| public static void registerForeignCalls(GraalHotSpotVMConfig c, HotSpotForeignCallsProviderImpl foreignCalls) { |
| foreignCalls.registerForeignCall(THROW_AND_POST_JVMTI_EXCEPTION, c.throwAndPostJvmtiExceptionAddress, NativeCall, DESTROYS_REGISTERS, SAFEPOINT, REEXECUTABLE, any()); |
| foreignCalls.registerForeignCall(THROW_KLASS_EXTERNAL_NAME_EXCEPTION, c.throwKlassExternalNameExceptionAddress, NativeCall, DESTROYS_REGISTERS, SAFEPOINT, REEXECUTABLE, any()); |
| foreignCalls.registerForeignCall(THROW_CLASS_CAST_EXCEPTION, c.throwClassCastExceptionAddress, NativeCall, DESTROYS_REGISTERS, SAFEPOINT, REEXECUTABLE, any()); |
| } |
| } |