| /* |
| * Copyright (c) 2015, 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; |
| |
| import static jdk.vm.ci.common.InitTimer.timer; |
| import static org.graalvm.compiler.options.OptionValue.PROFILE_OPTIONVALUE_PROPERTY_NAME; |
| |
| import java.io.File; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Properties; |
| import java.util.ServiceLoader; |
| |
| import org.graalvm.compiler.debug.MethodFilter; |
| import org.graalvm.compiler.options.Option; |
| import org.graalvm.compiler.options.OptionDescriptors; |
| import org.graalvm.compiler.options.OptionType; |
| import org.graalvm.compiler.options.OptionValue; |
| import org.graalvm.compiler.options.OptionsParser; |
| import org.graalvm.compiler.phases.tiers.CompilerConfiguration; |
| |
| import jdk.vm.ci.common.InitTimer; |
| import jdk.vm.ci.hotspot.HotSpotJVMCICompilerFactory; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime; |
| import jdk.vm.ci.hotspot.HotSpotSignature; |
| import jdk.vm.ci.runtime.JVMCIRuntime; |
| import jdk.vm.ci.services.Services; |
| |
| public final class HotSpotGraalCompilerFactory extends HotSpotJVMCICompilerFactory { |
| |
| /** |
| * The name of the system property specifying a file containing extra Graal option settings. |
| */ |
| private static final String GRAAL_OPTIONS_FILE_PROPERTY_NAME = "graal.options.file"; |
| |
| /** |
| * The name of the system property specifying the Graal version. |
| */ |
| private static final String GRAAL_VERSION_PROPERTY_NAME = "graal.version"; |
| |
| /** |
| * The prefix for system properties that correspond to {@link Option} annotated fields. A field |
| * named {@code MyOption} will have its value set from a system property with the name |
| * {@code GRAAL_OPTION_PROPERTY_PREFIX + "MyOption"}. |
| */ |
| public static final String GRAAL_OPTION_PROPERTY_PREFIX = "graal."; |
| |
| private static MethodFilter[] graalCompileOnlyFilter; |
| |
| /** |
| * Gets the system property assignment that would set the current value for a given option. |
| */ |
| public static String asSystemPropertySetting(OptionValue<?> value) { |
| return GRAAL_OPTION_PROPERTY_PREFIX + value.getName() + "=" + value.getValue(); |
| } |
| |
| private final HotSpotGraalJVMCIServiceLocator locator; |
| |
| HotSpotGraalCompilerFactory(HotSpotGraalJVMCIServiceLocator locator) { |
| this.locator = locator; |
| } |
| |
| @Override |
| public String getCompilerName() { |
| return "graal"; |
| } |
| |
| @Override |
| public void onSelection() { |
| initializeOptions(); |
| JVMCIVersionCheck.check(false); |
| } |
| |
| @Override |
| public void printProperties(PrintStream out) { |
| ServiceLoader<OptionDescriptors> loader = ServiceLoader.load(OptionDescriptors.class, OptionDescriptors.class.getClassLoader()); |
| out.println("[Graal properties]"); |
| OptionsParser.printFlags(loader, out, allOptionsSettings.keySet(), GRAAL_OPTION_PROPERTY_PREFIX); |
| } |
| |
| static class Options { |
| |
| // @formatter:off |
| @Option(help = "In tiered mode compile Graal and JVMCI using optimized first tier code.", type = OptionType.Expert) |
| public static final OptionValue<Boolean> CompileGraalWithC1Only = new OptionValue<>(true); |
| |
| @Option(help = "Hook into VM-level mechanism for denoting compilations to be performed in first tier.", type = OptionType.Expert) |
| public static final OptionValue<Boolean> UseTrivialPrefixes = new OptionValue<>(false); |
| |
| @Option(help = "A method filter selecting what should be compiled by Graal. All other requests will be reduced to CompilationLevel.Simple.", type = OptionType.Expert) |
| public static final OptionValue<String> GraalCompileOnly = new OptionValue<>(null); |
| // @formatter:on |
| |
| } |
| |
| private static Map<String, String> allOptionsSettings; |
| |
| /** |
| * Initializes options if they haven't already been initialized. |
| * |
| * Initialization means first parsing the options in the file denoted by the |
| * {@code VM.getSavedProperty(String) saved} system property named |
| * {@value HotSpotGraalCompilerFactory#GRAAL_OPTIONS_FILE_PROPERTY_NAME} if the file exists |
| * followed by parsing the options encoded in saved system properties whose names start with |
| * {@value #GRAAL_OPTION_PROPERTY_PREFIX}. Key/value pairs are parsed from the aforementioned |
| * file with {@link Properties#load(java.io.Reader)}. |
| */ |
| @SuppressWarnings("try") |
| private static synchronized void initializeOptions() { |
| if (allOptionsSettings == null) { |
| try (InitTimer t = timer("InitializeOptions")) { |
| ServiceLoader<OptionDescriptors> loader = ServiceLoader.load(OptionDescriptors.class, OptionDescriptors.class.getClassLoader()); |
| Map<String, String> savedProps = Services.getSavedProperties(); |
| String optionsFile = savedProps.get(GRAAL_OPTIONS_FILE_PROPERTY_NAME); |
| |
| if (optionsFile != null) { |
| File graalOptions = new File(optionsFile); |
| if (graalOptions.exists()) { |
| try (FileReader fr = new FileReader(graalOptions)) { |
| Properties props = new Properties(); |
| props.load(fr); |
| Map<String, String> optionSettings = new HashMap<>(); |
| for (Map.Entry<Object, Object> e : props.entrySet()) { |
| optionSettings.put((String) e.getKey(), (String) e.getValue()); |
| } |
| try { |
| OptionsParser.parseOptions(optionSettings, null, loader); |
| if (allOptionsSettings == null) { |
| allOptionsSettings = new HashMap<>(optionSettings); |
| } else { |
| allOptionsSettings.putAll(optionSettings); |
| } |
| } catch (Throwable e) { |
| throw new InternalError("Error parsing an option from " + graalOptions, e); |
| } |
| } catch (IOException e) { |
| throw new InternalError("Error reading " + graalOptions, e); |
| } |
| } |
| } |
| |
| Map<String, String> optionSettings = new HashMap<>(); |
| for (Entry<String, String> e : savedProps.entrySet()) { |
| String name = e.getKey(); |
| if (name.startsWith(GRAAL_OPTION_PROPERTY_PREFIX)) { |
| if (name.equals("graal.PrintFlags") || name.equals("graal.ShowFlags")) { |
| System.err.println("The " + name + " option has been removed and will be ignored. Use -XX:+JVMCIPrintProperties instead."); |
| } else if (name.equals(GRAAL_OPTIONS_FILE_PROPERTY_NAME) || name.equals(GRAAL_VERSION_PROPERTY_NAME) || name.equals(PROFILE_OPTIONVALUE_PROPERTY_NAME)) { |
| // Ignore well known properties that do not denote an option |
| } else { |
| String value = e.getValue(); |
| optionSettings.put(name.substring(GRAAL_OPTION_PROPERTY_PREFIX.length()), value); |
| } |
| } |
| } |
| |
| OptionsParser.parseOptions(optionSettings, null, loader); |
| |
| if (allOptionsSettings == null) { |
| allOptionsSettings = optionSettings; |
| } else { |
| allOptionsSettings.putAll(optionSettings); |
| } |
| |
| if (Options.GraalCompileOnly.getValue() != null) { |
| graalCompileOnlyFilter = MethodFilter.parse(Options.GraalCompileOnly.getValue()); |
| if (graalCompileOnlyFilter.length == 0) { |
| graalCompileOnlyFilter = null; |
| } |
| } |
| if (graalCompileOnlyFilter != null || !Options.UseTrivialPrefixes.getValue()) { |
| /* |
| * Exercise this code path early to encourage loading now. This doesn't solve |
| * problem of deadlock during class loading but seems to eliminate it in |
| * practice. |
| */ |
| adjustCompilationLevelInternal(Object.class, "hashCode", "()I", CompilationLevel.FullOptimization); |
| adjustCompilationLevelInternal(Object.class, "hashCode", "()I", CompilationLevel.Simple); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public HotSpotGraalCompiler createCompiler(JVMCIRuntime runtime) { |
| HotSpotGraalCompiler compiler = createCompiler(runtime, CompilerConfigurationFactory.selectFactory(null)); |
| // Only the HotSpotGraalRuntime associated with the compiler created via |
| // jdk.vm.ci.runtime.JVMCIRuntime.getCompiler() is registered for receiving |
| // VM events. |
| locator.onCompilerCreation(compiler); |
| return compiler; |
| } |
| |
| /** |
| * Creates a new {@link HotSpotGraalRuntime} object and a new {@link HotSpotGraalCompiler} and |
| * returns the latter. |
| * |
| * @param runtime the JVMCI runtime on which the {@link HotSpotGraalRuntime} is built |
| * @param compilerConfigurationFactory factory for the {@link CompilerConfiguration} |
| */ |
| @SuppressWarnings("try") |
| public static HotSpotGraalCompiler createCompiler(JVMCIRuntime runtime, CompilerConfigurationFactory compilerConfigurationFactory) { |
| HotSpotJVMCIRuntime jvmciRuntime = (HotSpotJVMCIRuntime) runtime; |
| try (InitTimer t = timer("HotSpotGraalRuntime.<init>")) { |
| HotSpotGraalRuntime graalRuntime = new HotSpotGraalRuntime(jvmciRuntime, compilerConfigurationFactory); |
| return new HotSpotGraalCompiler(jvmciRuntime, graalRuntime); |
| } |
| } |
| |
| @Override |
| public String[] getTrivialPrefixes() { |
| if (Options.UseTrivialPrefixes.getValue()) { |
| if (Options.CompileGraalWithC1Only.getValue()) { |
| return new String[]{"jdk/vm/ci", "org/graalvm/compiler", "com/oracle/graal"}; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public CompilationLevelAdjustment getCompilationLevelAdjustment() { |
| if (graalCompileOnlyFilter != null) { |
| return CompilationLevelAdjustment.ByFullSignature; |
| } |
| if (!Options.UseTrivialPrefixes.getValue()) { |
| if (Options.CompileGraalWithC1Only.getValue()) { |
| // We only decide using the class declaring the method |
| // so no need to have the method name and signature |
| // symbols converted to a String. |
| return CompilationLevelAdjustment.ByHolder; |
| } |
| } |
| return CompilationLevelAdjustment.None; |
| } |
| |
| @Override |
| public CompilationLevel adjustCompilationLevel(Class<?> declaringClass, String name, String signature, boolean isOsr, CompilationLevel level) { |
| return adjustCompilationLevelInternal(declaringClass, name, signature, level); |
| } |
| |
| /* |
| * This method is static so it can be exercised during initialization. |
| */ |
| private static CompilationLevel adjustCompilationLevelInternal(Class<?> declaringClass, String name, String signature, CompilationLevel level) { |
| if (graalCompileOnlyFilter != null) { |
| if (level == CompilationLevel.FullOptimization) { |
| String declaringClassName = declaringClass.getName(); |
| HotSpotSignature sig = null; |
| for (MethodFilter filter : graalCompileOnlyFilter) { |
| if (filter.hasSignature() && sig == null) { |
| sig = new HotSpotSignature(HotSpotJVMCIRuntime.runtime(), signature); |
| } |
| if (filter.matches(declaringClassName, name, sig)) { |
| return level; |
| } |
| } |
| return CompilationLevel.Simple; |
| } |
| } |
| if (level.ordinal() > CompilationLevel.Simple.ordinal()) { |
| String declaringClassName = declaringClass.getName(); |
| if (declaringClassName.startsWith("jdk.vm.ci") || declaringClassName.startsWith("org.graalvm.compiler") || declaringClassName.startsWith("com.oracle.graal")) { |
| return CompilationLevel.Simple; |
| } |
| } |
| return level; |
| } |
| } |
