| /* |
| * Copyright (c) 2013, 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 sun.hotspot.tools.ctw; |
| |
| import sun.hotspot.WhiteBox; |
| import sun.misc.SharedSecrets; |
| import sun.reflect.ConstantPool; |
| |
| import java.lang.reflect.Executable; |
| |
| import java.util.Objects; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| /** |
| * Provide method to compile whole class. |
| * Also contains compiled methods and classes counters. |
| */ |
| public class Compiler { |
| private Compiler() { } |
| private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); |
| private static final AtomicLong CLASS_COUNT = new AtomicLong(0L); |
| private static final AtomicLong METHOD_COUNT = new AtomicLong(0L); |
| private static volatile boolean CLASSES_LIMIT_REACHED = false; |
| |
| /** |
| * @return count of processed classes |
| */ |
| public static long getClassCount() { |
| return CLASS_COUNT.get(); |
| } |
| |
| /** |
| * @return count of processed methods |
| */ |
| public static long getMethodCount() { |
| return METHOD_COUNT.get(); |
| } |
| |
| /** |
| * @return {@code true} if classes limit is reached |
| */ |
| public static boolean isLimitReached() { |
| return CLASSES_LIMIT_REACHED; |
| } |
| |
| /** |
| * Compiles all methods and constructors. |
| * |
| * @param aClass class to compile |
| * @param executor executor used for compile task invocation |
| * @throws NullPointerException if {@code class} or {@code executor} |
| * is {@code null} |
| */ |
| public static void compileClass(Class aClass, Executor executor) { |
| Objects.requireNonNull(aClass); |
| Objects.requireNonNull(executor); |
| long id = CLASS_COUNT.incrementAndGet(); |
| if (id > Utils.COMPILE_THE_WORLD_STOP_AT) { |
| CLASS_COUNT.decrementAndGet(); |
| CLASSES_LIMIT_REACHED = true; |
| return; |
| } |
| |
| if (id >= Utils.COMPILE_THE_WORLD_START_AT) { |
| String name = aClass.getName(); |
| try { |
| System.out.printf("[%d]\t%s%n", id, name); |
| ConstantPool constantPool = SharedSecrets.getJavaLangAccess(). |
| getConstantPool(aClass); |
| if (Utils.COMPILE_THE_WORLD_PRELOAD_CLASSES) { |
| preloadClasses(name, id, constantPool); |
| } |
| long methodCount = 0; |
| for (Executable e : aClass.getDeclaredConstructors()) { |
| ++methodCount; |
| executor.execute(new CompileMethodCommand(id, name, e)); |
| } |
| for (Executable e : aClass.getDeclaredMethods()) { |
| ++methodCount; |
| executor.execute(new CompileMethodCommand(id, name, e)); |
| } |
| METHOD_COUNT.addAndGet(methodCount); |
| |
| if (Utils.DEOPTIMIZE_ALL_CLASSES_RATE > 0 |
| && (id % Utils.DEOPTIMIZE_ALL_CLASSES_RATE == 0)) { |
| WHITE_BOX.deoptimizeAll(); |
| } |
| } catch (Throwable t) { |
| System.out.printf("[%d]\t%s\tskipping %s%n", id, name, t); |
| t.printStackTrace(); |
| } |
| } |
| } |
| |
| private static void preloadClasses(String className, long id, |
| ConstantPool constantPool) { |
| try { |
| for (int i = 0, n = constantPool.getSize(); i < n; ++i) { |
| try { |
| constantPool.getClassAt(i); |
| } catch (IllegalArgumentException ignore) { |
| } |
| } |
| } catch (Throwable t) { |
| System.out.printf("[%d]\t%s\tpreloading failed : %s%n", id, |
| className, t); |
| } |
| } |
| |
| |
| |
| /** |
| * Compilation of method. |
| * Will compile method on all available comp levels. |
| */ |
| private static class CompileMethodCommand implements Runnable { |
| private final long classId; |
| private final String className; |
| private final Executable method; |
| |
| /** |
| * @param classId id of class |
| * @param className name of class |
| * @param method compiled for compilation |
| */ |
| public CompileMethodCommand(long classId, String className, |
| Executable method) { |
| this.classId = classId; |
| this.className = className; |
| this.method = method; |
| } |
| |
| @Override |
| public final void run() { |
| int compLevel = Utils.INITIAL_COMP_LEVEL; |
| if (Utils.TIERED_COMPILATION) { |
| for (int i = compLevel; i <= Utils.TIERED_STOP_AT_LEVEL; ++i) { |
| WHITE_BOX.deoptimizeMethod(method); |
| compileMethod(method, i); |
| } |
| } else { |
| compileMethod(method, compLevel); |
| } |
| } |
| |
| private void waitCompilation() { |
| if (!Utils.BACKGROUND_COMPILATION) { |
| return; |
| } |
| final Object obj = new Object(); |
| synchronized (obj) { |
| for (int i = 0; |
| i < 10 && WHITE_BOX.isMethodQueuedForCompilation(method); |
| ++i) { |
| try { |
| obj.wait(1000); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| } |
| } |
| |
| private void compileMethod(Executable method, int compLevel) { |
| if (WHITE_BOX.isMethodCompilable(method, compLevel)) { |
| try { |
| WHITE_BOX.enqueueMethodForCompilation(method, compLevel); |
| waitCompilation(); |
| int tmp = WHITE_BOX.getMethodCompilationLevel(method); |
| if (tmp != compLevel) { |
| logMethod(method, "compilation level = " + tmp |
| + ", but not " + compLevel); |
| } else if (Utils.IS_VERBOSE) { |
| logMethod(method, "compilation level = " + tmp + ". OK"); |
| } |
| } catch (Throwable t) { |
| logMethod(method, "error on compile at " + compLevel |
| + " level"); |
| t.printStackTrace(); |
| } |
| } else if (Utils.IS_VERBOSE) { |
| logMethod(method, "not compilable at " + compLevel); |
| } |
| } |
| |
| private void logMethod(Executable method, String message) { |
| StringBuilder builder = new StringBuilder("["); |
| builder.append(classId); |
| builder.append("]\t"); |
| builder.append(className); |
| builder.append("::"); |
| builder.append(method.getName()); |
| builder.append('('); |
| Class[] params = method.getParameterTypes(); |
| for (int i = 0, n = params.length - 1; i < n; ++i) { |
| builder.append(params[i].getName()); |
| builder.append(", "); |
| } |
| if (params.length != 0) { |
| builder.append(params[params.length - 1].getName()); |
| } |
| builder.append(')'); |
| if (message != null) { |
| builder.append('\t'); |
| builder.append(message); |
| } |
| System.err.println(builder); |
| } |
| } |
| |
| } |