Mercurial > hg > graal-compiler
view graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotJVMCIRuntime.java @ 21671:8d0c2aabfc2d
missed Graal -> JVMCI renamings
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 02 Jun 2015 19:11:34 +0200 |
parents | 4c146c9367b6 |
children | 2e8c01def9a5 |
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/* * 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. */ package com.oracle.jvmci.hotspot; import static com.oracle.jvmci.common.UnsafeAccess.*; import static com.oracle.jvmci.hotspot.InitTimer.*; import java.lang.reflect.*; import java.util.*; import com.oracle.jvmci.code.*; import com.oracle.jvmci.common.*; import com.oracle.jvmci.debug.*; import com.oracle.jvmci.hotspot.logging.*; import com.oracle.jvmci.meta.*; import com.oracle.jvmci.options.*; import com.oracle.jvmci.runtime.*; import com.oracle.jvmci.service.*; //JaCoCo Exclude public final class HotSpotJVMCIRuntime implements HotSpotJVMCIRuntimeProvider, HotSpotProxified { private static final HotSpotJVMCIRuntime instance; static { try (InitTimer t0 = timer("HotSpotJVMCIRuntime.<clinit>")) { try (InitTimer t = timer("HotSpotJVMCIRuntime.<init>")) { instance = new HotSpotJVMCIRuntime(); } try (InitTimer t = timer("HotSpotJVMCIRuntime.completeInitialization")) { // Why deferred initialization? See comment in completeInitialization(). instance.completeInitialization(); } } } /** * Gets the singleton {@link HotSpotJVMCIRuntime} object. */ public static HotSpotJVMCIRuntime runtime() { assert instance != null; return instance; } /** * Do deferred initialization. */ public void completeInitialization() { TTY.initialize(Options.LogFile.getStream(compilerToVm)); // Proxies for the VM/Compiler interfaces cannot be initialized // in the constructor as proxy creation causes static // initializers to be executed for all the types involved in the // proxied methods. Some of these static initializers (e.g. in // HotSpotMethodData) rely on the static 'instance' field being set // to retrieve configuration details. CompilerToVM toVM = this.compilerToVm; if (CountingProxy.ENABLED) { toVM = CountingProxy.getProxy(CompilerToVM.class, toVM); } if (Logger.ENABLED) { toVM = LoggingProxy.getProxy(CompilerToVM.class, toVM); } this.compilerToVm = toVM; } public static class Options { // @formatter:off @Option(help = "The JVMCI runtime configuration to use", type = OptionType.Expert) public static final OptionValue<String> JVMCIRuntime = new OptionValue<>(""); @Option(help = "File to which logging is sent. A %p in the name will be replaced with a string identifying the process, usually the process id.", type = OptionType.Expert) public static final PrintStreamOption LogFile = new PrintStreamOption(); // @formatter:on } public static HotSpotJVMCIBackendFactory findFactory(String architecture) { HotSpotJVMCIBackendFactory basic = null; HotSpotJVMCIBackendFactory selected = null; HotSpotJVMCIBackendFactory nonBasic = null; int nonBasicCount = 0; for (HotSpotJVMCIBackendFactory factory : Services.load(HotSpotJVMCIBackendFactory.class)) { if (factory.getArchitecture().equalsIgnoreCase(architecture)) { if (factory.getJVMCIRuntimeName().equals(Options.JVMCIRuntime.getValue())) { assert selected == null || checkFactoryOverriding(selected, factory); selected = factory; } if (factory.getJVMCIRuntimeName().equals("basic")) { assert basic == null || checkFactoryOverriding(basic, factory); basic = factory; } else { nonBasic = factory; nonBasicCount++; } } } if (selected != null) { return selected; } else { if (!Options.JVMCIRuntime.getValue().equals("")) { // Fail fast if a non-default value for JVMCIRuntime was specified // and the corresponding factory is not available throw new JVMCIError("Specified runtime \"%s\" not available for the %s architecture", Options.JVMCIRuntime.getValue(), architecture); } else if (nonBasicCount == 1) { // If there is exactly one non-basic runtime, select this one. return nonBasic; } else { return basic; } } } /** * Checks that a factory overriding is valid. A factory B can only override/replace a factory A * if the B.getClass() is a subclass of A.getClass(). This models the assumption that B is * extends the behavior of A and has therefore understood the behavior expected of A. * * @param baseFactory * @param overridingFactory */ private static boolean checkFactoryOverriding(HotSpotJVMCIBackendFactory baseFactory, HotSpotJVMCIBackendFactory overridingFactory) { return baseFactory.getClass().isAssignableFrom(overridingFactory.getClass()); } /** * Gets the kind of a word value on the {@linkplain #getHostJVMCIBackend() host} backend. */ public static Kind getHostWordKind() { return instance.getHostJVMCIBackend().getCodeCache().getTarget().wordKind; } /** * Reads a klass pointer from a constant object. */ public static long unsafeReadKlassPointer(Object object) { return instance.getCompilerToVM().readUnsafeKlassPointer(object); } /** * Reads a word value from a given object. */ public static long unsafeReadWord(Object object, long offset) { if (getHostWordKind() == Kind.Long) { return unsafe.getLong(object, offset); } return unsafe.getInt(object, offset) & 0xFFFFFFFFL; } protected/* final */CompilerToVM compilerToVm; protected final HotSpotVMConfig config; private final JVMCIBackend hostBackend; /** * JVMCI mirrors are stored as a {@link ClassValue} associated with the {@link Class} of the * type. This data structure stores both {@link HotSpotResolvedObjectType} and * {@link HotSpotResolvedPrimitiveType} types. */ private final ClassValue<ResolvedJavaType> jvmciMirrors = new ClassValue<ResolvedJavaType>() { @Override protected ResolvedJavaType computeValue(Class<?> javaClass) { if (javaClass.isPrimitive()) { Kind kind = Kind.fromJavaClass(javaClass); return new HotSpotResolvedPrimitiveType(kind); } else { return new HotSpotResolvedObjectTypeImpl(javaClass); } } }; private final Map<Class<? extends Architecture>, JVMCIBackend> backends = new HashMap<>(); private final HotSpotVMEventListener vmEventListener; private HotSpotJVMCIRuntime() { CompilerToVM toVM = new CompilerToVMImpl(); compilerToVm = toVM; try (InitTimer t = timer("HotSpotVMConfig<init>")) { config = new HotSpotVMConfig(compilerToVm); } if (Boolean.valueOf(System.getProperty("jvmci.printconfig"))) { printConfig(config); } String hostArchitecture = config.getHostArchitectureName(); HotSpotJVMCIBackendFactory factory; try (InitTimer t = timer("find factory:", hostArchitecture)) { factory = findFactory(hostArchitecture); } try (InitTimer t = timer("create JVMCI backend:", hostArchitecture)) { hostBackend = registerBackend(factory.createJVMCIBackend(this, null)); } vmEventListener = Services.loadSingle(HotSpotVMEventListener.class, true); } private JVMCIBackend registerBackend(JVMCIBackend backend) { Class<? extends Architecture> arch = backend.getCodeCache().getTarget().arch.getClass(); JVMCIBackend oldValue = backends.put(arch, backend); assert oldValue == null : "cannot overwrite existing backend for architecture " + arch.getSimpleName(); return backend; } public ResolvedJavaType fromClass(Class<?> javaClass) { return jvmciMirrors.get(javaClass); } private static void printConfig(HotSpotVMConfig config) { Field[] fields = config.getClass().getDeclaredFields(); Map<String, Field> sortedFields = new TreeMap<>(); for (Field f : fields) { f.setAccessible(true); sortedFields.put(f.getName(), f); } for (Field f : sortedFields.values()) { try { Logger.info(String.format("%9s %-40s = %s", f.getType().getSimpleName(), f.getName(), Logger.pretty(f.get(config)))); } catch (Exception e) { } } } public HotSpotVMConfig getConfig() { return config; } public CompilerToVM getCompilerToVM() { return compilerToVm; } public JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve) { Objects.requireNonNull(accessingType, "cannot resolve type without an accessing class"); // If the name represents a primitive type we can short-circuit the lookup. if (name.length() == 1) { Kind kind = Kind.fromPrimitiveOrVoidTypeChar(name.charAt(0)); return fromClass(kind.toJavaClass()); } // Resolve non-primitive types in the VM. HotSpotResolvedObjectTypeImpl hsAccessingType = (HotSpotResolvedObjectTypeImpl) accessingType; final long metaspaceKlass = compilerToVm.lookupType(name, hsAccessingType.mirror(), resolve); if (metaspaceKlass == 0L) { assert resolve == false; return HotSpotUnresolvedJavaType.create(this, name); } return HotSpotResolvedObjectTypeImpl.fromMetaspaceKlass(metaspaceKlass); } public JVMCIBackend getHostJVMCIBackend() { return hostBackend; } public <T extends Architecture> JVMCIBackend getJVMCIBackend(Class<T> arch) { assert arch != Architecture.class; return backends.get(arch); } public Map<Class<? extends Architecture>, JVMCIBackend> getBackends() { return Collections.unmodifiableMap(backends); } /** * Called from the VM. */ @SuppressWarnings({"unused"}) private void compileMetaspaceMethod(long metaspaceMethod, int entryBCI, long jvmciEnv, int id) { vmEventListener.compileMetaspaceMethod(metaspaceMethod, entryBCI, jvmciEnv, id); } /** * Called from the VM. */ @SuppressWarnings({"unused"}) private void compileTheWorld() throws Throwable { vmEventListener.notifyCompileTheWorld(); } /** * Shuts down the runtime. * * Called from the VM. */ @SuppressWarnings({"unused"}) private void shutdown() throws Exception { vmEventListener.notifyShutdown(); } }