--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/stubs/CreateExceptionStub.java 2016-12-07 13:50:49.995984783 -0800 @@ -0,0 +1,109 @@ +/* + * 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 exception) { + Word message = null; + return createException(threadRegister, exception, message); + } + + protected static Object createException(Register threadRegister, Class 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 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 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()); + } +}