| /* |
| * Copyright (c) 2013, 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.meta; |
| |
| import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.RegisterEffect.PRESERVES_REGISTERS; |
| import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Transition.SAFEPOINT; |
| import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCall; |
| import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCallee; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.common.LocationIdentity; |
| import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; |
| import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage; |
| import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.RegisterEffect; |
| import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Transition; |
| import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkageImpl; |
| import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; |
| import org.graalvm.compiler.hotspot.stubs.ForeignCallStub; |
| import org.graalvm.compiler.hotspot.stubs.Stub; |
| import org.graalvm.compiler.word.Word; |
| import org.graalvm.compiler.word.WordTypes; |
| |
| import jdk.vm.ci.code.CallingConvention; |
| import jdk.vm.ci.code.CodeCacheProvider; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider; |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.MetaAccessProvider; |
| |
| /** |
| * HotSpot implementation of {@link HotSpotForeignCallsProvider}. |
| */ |
| public abstract class HotSpotForeignCallsProviderImpl implements HotSpotForeignCallsProvider { |
| |
| public static final ForeignCallDescriptor OSR_MIGRATION_END = new ForeignCallDescriptor("OSR_migration_end", void.class, long.class); |
| public static final ForeignCallDescriptor IDENTITY_HASHCODE = new ForeignCallDescriptor("identity_hashcode", int.class, Object.class); |
| public static final ForeignCallDescriptor VERIFY_OOP = new ForeignCallDescriptor("verify_oop", Object.class, Object.class); |
| public static final ForeignCallDescriptor LOAD_AND_CLEAR_EXCEPTION = new ForeignCallDescriptor("load_and_clear_exception", Object.class, Word.class); |
| |
| public static final ForeignCallDescriptor TEST_DEOPTIMIZE_CALL_INT = new ForeignCallDescriptor("test_deoptimize_call_int", int.class, int.class); |
| |
| protected final HotSpotJVMCIRuntimeProvider jvmciRuntime; |
| protected final HotSpotGraalRuntimeProvider runtime; |
| |
| protected final Map<ForeignCallDescriptor, HotSpotForeignCallLinkage> foreignCalls = new HashMap<>(); |
| protected final MetaAccessProvider metaAccess; |
| protected final CodeCacheProvider codeCache; |
| protected final WordTypes wordTypes; |
| |
| public HotSpotForeignCallsProviderImpl(HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, CodeCacheProvider codeCache, |
| WordTypes wordTypes) { |
| this.jvmciRuntime = jvmciRuntime; |
| this.runtime = runtime; |
| this.metaAccess = metaAccess; |
| this.codeCache = codeCache; |
| this.wordTypes = wordTypes; |
| } |
| |
| /** |
| * Registers the linkage for a foreign call. |
| */ |
| public HotSpotForeignCallLinkage register(HotSpotForeignCallLinkage linkage) { |
| assert !foreignCalls.containsKey(linkage.getDescriptor()) : "already registered linkage for " + linkage.getDescriptor(); |
| foreignCalls.put(linkage.getDescriptor(), linkage); |
| return linkage; |
| } |
| |
| /** |
| * Return true if the descriptor has already been registered. |
| */ |
| public boolean isRegistered(ForeignCallDescriptor descriptor) { |
| return foreignCalls.containsKey(descriptor); |
| } |
| |
| /** |
| * Creates and registers the details for linking a foreign call to a {@link Stub}. |
| * |
| * @param descriptor the signature of the call to the stub |
| * @param reexecutable specifies if the stub call can be re-executed without (meaningful) side |
| * effects. Deoptimization will not return to a point before a stub call that cannot |
| * be re-executed. |
| * @param transition specifies if this is a {@linkplain Transition#LEAF leaf} call |
| * @param killedLocations the memory locations killed by the stub call |
| */ |
| public HotSpotForeignCallLinkage registerStubCall(ForeignCallDescriptor descriptor, boolean reexecutable, Transition transition, LocationIdentity... killedLocations) { |
| return register(HotSpotForeignCallLinkageImpl.create(metaAccess, codeCache, wordTypes, this, descriptor, 0L, PRESERVES_REGISTERS, JavaCall, JavaCallee, transition, reexecutable, |
| killedLocations)); |
| } |
| |
| /** |
| * Creates and registers the linkage for a foreign call. |
| * |
| * @param descriptor the signature of the foreign call |
| * @param address the address of the code to call |
| * @param outgoingCcType outgoing (caller) calling convention type |
| * @param effect specifies if the call destroys or preserves all registers (apart from |
| * temporaries which are always destroyed) |
| * @param transition specifies if this is a {@linkplain Transition#LEAF leaf} call |
| * @param reexecutable specifies if the foreign call can be re-executed without (meaningful) |
| * side effects. Deoptimization will not return to a point before a foreign call that |
| * cannot be re-executed. |
| * @param killedLocations the memory locations killed by the foreign call |
| */ |
| public HotSpotForeignCallLinkage registerForeignCall(ForeignCallDescriptor descriptor, long address, CallingConvention.Type outgoingCcType, RegisterEffect effect, Transition transition, |
| boolean reexecutable, LocationIdentity... killedLocations) { |
| Class<?> resultType = descriptor.getResultType(); |
| assert address != 0; |
| assert transition != SAFEPOINT || resultType.isPrimitive() || Word.class.isAssignableFrom(resultType) : "non-leaf foreign calls must return objects in thread local storage: " + descriptor; |
| return register(HotSpotForeignCallLinkageImpl.create(metaAccess, codeCache, wordTypes, this, descriptor, address, effect, outgoingCcType, null, transition, reexecutable, killedLocations)); |
| } |
| |
| /** |
| * Creates a {@linkplain ForeignCallStub stub} for a foreign call. |
| * |
| * @param descriptor the signature of the call to the stub |
| * @param address the address of the foreign code to call |
| * @param prependThread true if the JavaThread value for the current thread is to be prepended |
| * to the arguments for the call to {@code address} |
| * @param transition specifies if this is a {@linkplain Transition#LEAF leaf} call |
| * @param reexecutable specifies if the foreign call can be re-executed without (meaningful) |
| * side effects. Deoptimization will not return to a point before a foreign call that |
| * cannot be re-executed. |
| * @param killedLocations the memory locations killed by the foreign call |
| */ |
| public void linkForeignCall(HotSpotProviders providers, ForeignCallDescriptor descriptor, long address, boolean prependThread, Transition transition, boolean reexecutable, |
| LocationIdentity... killedLocations) { |
| ForeignCallStub stub = new ForeignCallStub(jvmciRuntime, providers, address, descriptor, prependThread, transition, reexecutable, killedLocations); |
| HotSpotForeignCallLinkage linkage = stub.getLinkage(); |
| HotSpotForeignCallLinkage targetLinkage = stub.getTargetLinkage(); |
| linkage.setCompiledStub(stub); |
| register(linkage); |
| register(targetLinkage); |
| } |
| |
| public static final boolean PREPEND_THREAD = true; |
| public static final boolean DONT_PREPEND_THREAD = !PREPEND_THREAD; |
| |
| public static final boolean REEXECUTABLE = true; |
| public static final boolean NOT_REEXECUTABLE = !REEXECUTABLE; |
| |
| public static final LocationIdentity[] NO_LOCATIONS = {}; |
| |
| @Override |
| public HotSpotForeignCallLinkage lookupForeignCall(ForeignCallDescriptor descriptor) { |
| assert foreignCalls != null : descriptor; |
| HotSpotForeignCallLinkage callTarget = foreignCalls.get(descriptor); |
| callTarget.finalizeAddress(runtime.getHostBackend()); |
| return callTarget; |
| } |
| |
| @Override |
| public boolean isReexecutable(ForeignCallDescriptor descriptor) { |
| assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor; |
| return foreignCalls.get(descriptor).isReexecutable(); |
| } |
| |
| @Override |
| public boolean canDeoptimize(ForeignCallDescriptor descriptor) { |
| assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor; |
| return foreignCalls.get(descriptor).needsDebugInfo(); |
| } |
| |
| @Override |
| public boolean isGuaranteedSafepoint(ForeignCallDescriptor descriptor) { |
| assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor; |
| return foreignCalls.get(descriptor).isGuaranteedSafepoint(); |
| } |
| |
| @Override |
| public LocationIdentity[] getKilledLocations(ForeignCallDescriptor descriptor) { |
| assert foreignCalls.containsKey(descriptor) : "unknown foreign call: " + descriptor; |
| return foreignCalls.get(descriptor).getKilledLocations(); |
| } |
| |
| @Override |
| public LIRKind getValueKind(JavaKind javaKind) { |
| return LIRKind.fromJavaKind(codeCache.getTarget().arch, javaKind); |
| } |
| } |