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Commit a121539

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author
hborders
committed
Added com.sun.max.lang package from Maxine VM.
1 parent 5fc9d80 commit a121539
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+283Lines changed: 283 additions & 0 deletions

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‎JavaInJava/src/com/sun/max/lang/DataModel.java‎

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+111Lines changed: 111 additions & 0 deletions
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/*
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* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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*
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* Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
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* that is described in this document. In particular, and without limitation, these intellectual property
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* rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
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* more additional patents or pending patent applications in the U.S. and in other countries.
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*
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* U.S. Government Rights - Commercial software. Government users are subject to the Sun
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* Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
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* supplements.
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*
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* Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
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* registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
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* are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
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* U.S. and other countries.
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*
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* UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
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* Company, Ltd.
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*/
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package com.sun.max.lang;
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import java.io.*;
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import com.sun.max.program.*;
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import com.sun.max.unsafe.*;
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import com.sun.max.vm.compiler.builtin.*;
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import com.sun.max.vm.value.*;
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public class DataModel {
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public final WordWidth wordWidth;
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public final Endianness endianness;
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public final int cacheAlignment;
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public DataModel(WordWidth wordWidth, Endianness endianness, int cacheAlignment) {
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this.wordWidth = wordWidth;
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this.endianness = endianness;
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this.cacheAlignment = cacheAlignment;
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}
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@Override
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public boolean equals(Object other) {
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if (!(other instanceof DataModel)) {
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return false;
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}
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final DataModel dataModel = (DataModel) other;
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return wordWidth.equals(dataModel.wordWidth) && endianness.equals(dataModel.endianness) && cacheAlignment == dataModel.cacheAlignment;
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}
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public byte[] toBytes(byte value) {
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return endianness.toBytes(value);
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}
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public byte[] toBytes(boolean value) {
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final byte[] result = new byte[1];
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result[0] = value ? (byte) 1 : (byte) 0;
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return result;
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}
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public byte[] toBytes(short value) {
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return endianness.toBytes(value);
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}
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public byte[] toBytes(char value) {
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final short shortValue = UnsafeCast.asShort(value);
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return endianness.toBytes(shortValue);
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}
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public byte[] toBytes(int value) {
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return endianness.toBytes(value);
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}
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public byte[] toBytes(float value) {
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final int intValue = SpecialBuiltin.floatToInt(value);
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return endianness.toBytes(intValue);
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}
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public byte[] toBytes(long value) {
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return endianness.toBytes(value);
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}
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public byte[] toBytes(double value) {
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final long longValue = SpecialBuiltin.doubleToLong(value);
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return endianness.toBytes(longValue);
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}
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public byte[] toBytes(Word value) {
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switch (wordWidth) {
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case BITS_64:
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return toBytes(value.asOffset().toLong());
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case BITS_32:
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return toBytes((int) value.asOffset().toLong());
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case BITS_16:
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return toBytes((short) value.asOffset().toLong());
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case BITS_8:
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return toBytes((byte) value.asOffset().toLong());
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}
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ProgramError.unknownCase();
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return null;
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}
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public void write(OutputStream stream, Value value) throws IOException {
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stream.write(value.toBytes(this));
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}
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@Override
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public String toString() {
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return wordWidth + "-bit, " + endianness + " endian, " + cacheAlignment + "-byte aligned cache";
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}
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}
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‎JavaInJava/src/com/sun/max/lang/Objects.java‎

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+99Lines changed: 99 additions & 0 deletions
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/*
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* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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*
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* Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
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* that is described in this document. In particular, and without limitation, these intellectual property
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* rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
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* more additional patents or pending patent applications in the U.S. and in other countries.
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*
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* U.S. Government Rights - Commercial software. Government users are subject to the Sun
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* Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
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* supplements.
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*
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* Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
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* registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
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* are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
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* U.S. and other countries.
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*
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* UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
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* Company, Ltd.
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*/
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package com.sun.max.lang;
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import static com.sun.max.unsafe.WithoutAccessCheck.*;
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import java.lang.reflect.*;
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import com.sun.max.*;
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import com.sun.max.program.*;
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/**
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* Basic generic utilities for objects.
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*
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* @author Bernd Mathiske
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* @author Doug Simon
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*/
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public final class Objects {
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private Objects() {
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}
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/**
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* Compares two given objects for equality using {@link Object#equals(Object)}.
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*
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* @return true if both {@code o1} and {@code o2} are {@code null} || {@code o1.equals(o2)}
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*/
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public static boolean equal(Object o1, Object o2) {
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return o1 == null ? o2 == null : o1.equals(o2);
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}
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/**
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* Copies the values of the instance fields in one object to another object.
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*
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* @param fromObject the object from which the field values are to be copied
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* @param toObject the object to which the field values are to be copied
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*/
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public static void copy(Object fromObject, Object toObject) {
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assert fromObject.getClass() == toObject.getClass();
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Class c = fromObject.getClass();
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while (c != null) {
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for (Field field : c.getDeclaredFields()) {
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if ((field.getModifiers() & Modifier.STATIC) == 0) {
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field.setAccessible(true);
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try {
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final Object value = field.get(fromObject);
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field.set(toObject, value);
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} catch (IllegalArgumentException illegalArgumentException) {
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// This should never occur
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throw ProgramError.unexpected(illegalArgumentException);
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} catch (IllegalAccessException illegalAccessException) {
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// This should never occur
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throw ProgramError.unexpected(illegalAccessException);
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}
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}
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}
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c = c.getSuperclass();
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}
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}
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/**
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* Creates a new instance of a given class without calling any constructors. This call also ensures that {@code javaClass}
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* has been initialized.
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*
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* @param javaClass the class to construct an instance of
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* @return an uninitialized of {@code javaClass}
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* @throws InstantiationException if the instantiation fails for any of the reasons described
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* {@linkplain InstantiationException here}
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*/
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public static Object allocateInstance(Class<?> javaClass) throws InstantiationException {
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unsafe.ensureClassInitialized(javaClass);
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return unsafe.allocateInstance(javaClass);
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}
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public static <T> T allocateObject(Class<T> javaClass) throws InstantiationException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
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final Constructor constructor = javaClass.getDeclaredConstructor();
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constructor.setAccessible(true);
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final Object object = constructor.newInstance();
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return Utils.cast(javaClass, object);
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}
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}
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‎JavaInJava/src/com/sun/max/lang/Unsigned.java‎

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+73Lines changed: 73 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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/*
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* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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*
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* Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
5+
* that is described in this document. In particular, and without limitation, these intellectual property
6+
* rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
7+
* more additional patents or pending patent applications in the U.S. and in other countries.
8+
*
9+
* U.S. Government Rights - Commercial software. Government users are subject to the Sun
10+
* Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
11+
* supplements.
12+
*
13+
* Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
14+
* registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
15+
* are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
16+
* U.S. and other countries.
17+
*
18+
* UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
19+
* Company, Ltd.
20+
*/
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package com.sun.max.lang;
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import com.sun.max.annotate.*;
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import com.sun.max.unsafe.*;
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/**
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* A collection of static methods for doing unsigned arithmetic on Java primitive types
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* where the semantics of the arithmetics operations differ from the signed version.
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* In addition to providing unsigned arithmetic semantics for the programmer,
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* these methods also expose different optimization possibilities to the compiler as
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* well as allowing for them to be implemented as compiler builtins.
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*
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* @author Doug Simon
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*/
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public class Unsigned {
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/**
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* Performs unsigned integer division.
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*/
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@INLINE
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@UNSAFE
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public static int idiv(int dividend, int divisor) {
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return Address.fromUnsignedInt(dividend).dividedBy(divisor).toInt();
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}
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/**
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* Performs unsigned long division.
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*/
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@INLINE
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@UNSAFE
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public static long ldiv(long dividend, long divisor) {
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return Address.fromLong(dividend).dividedBy(Address.fromLong(divisor)).toLong();
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}
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/**
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* Performs unsigned integer modulus.
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*/
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@INLINE
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@UNSAFE
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public static int irem(int dividend, int divisor) {
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return Address.fromUnsignedInt(dividend).remainder(divisor);
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}
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/**
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* Performs unsigned long modulus.
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*/
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@INLINE
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@UNSAFE
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public static long lrem(long dividend, long divisor) {
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return Address.fromLong(dividend).remainder(Address.fromLong(divisor)).toLong();
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}
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}

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