truffle: graal/com.oracle.max.asmdis/src/com/sun/max/asm/Assembler.java annotate

annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/Assembler.java @ 4142:bc8527f3071c

Adjust code base to new level of warnings.

author	Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date	Sun, 18 Dec 2011 05:24:06 +0100
parents	e233f5660da4
children

rev	line source
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1 /*
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	4 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	7 * published by the Free Software Foundation.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	8 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	13 * accompanied this code).
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	14 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	18 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	21 * questions.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	22 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	23 package com.sun.max.asm;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	24
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	25 import java.io.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	26 import java.util.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	27
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	28 import com.sun.max.lang.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	29 import com.sun.max.program.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	30
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	31 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	32 * Assembler base class.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	33 */
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	34 @SuppressWarnings("unused")
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	35 public abstract class Assembler {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	36
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	37 private final Directives directives;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	38
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	39 protected Assembler(byte byteData, boolean isValidCode) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	40 this.directives = new Directives(byteData, isValidCode);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	41 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	42
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	43 public abstract ISA isa();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	44
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	45 public final Directives directives() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	46 return directives;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	47 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	48
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	49 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	50 * Gets the width of a word on machine for which the code is being assembled.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	51 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	52 public abstract WordWidth wordWidth();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	53
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	54 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	55 * Resets any internal state in this assembler to the equivalent state it had when first constructed.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	56 * <p>
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	57 * This method is overridden as needed to ensure the state in subclasses is reset as well. Any
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	58 * overriding implementation must call this method in its superclass.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	59 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	60 public Assembler reset() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	61 boundLabels.clear();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	62 assembledObjects.clear();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	63 mutableAssembledObjects.clear();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	64 padOutput = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	65 potentialExpansionSize = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	66 selectingLabelInstructions = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	67 stream.reset();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	68 if (this instanceof Assembler32) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	69 final Assembler32 assembler32 = (Assembler32) this;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	70 assembler32.setStartAddress(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	71 } else if (this instanceof Assembler64) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	72 final Assembler64 assembler64 = (Assembler64) this;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	73 assembler64.setStartAddress(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	74 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	75 return this;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	76 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	77
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	78 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	79 * A facility for including output during assembly that may not necessarily be decoded interpreted as code.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	80 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	81 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	82 public final class Directives {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	83
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	84 private final byte padByte;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	85 private final boolean isValidCode;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	86
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	87 public Directives(byte padByte, boolean isValidCode) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	88 this.padByte = padByte;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	89 this.isValidCode = isValidCode;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	90 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	91 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	92 * Inserts as many {@linkplain #padByte pad bytes} as necessary to ensure that the next assembled object starts
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	93 * at an address aligned by a given number.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	94 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	95 * @param alignment
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	96 * the next assembled object is guaranteed to start at the next highest address starting at the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	97 * current address that is divisible by this value. Note that this computed address will be the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	98 * current address if the current address is already aligned by {@code alignment}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	99 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	100 private void alignIfSpaceLeftSmallerThan(int alignment, int requiredSpace, int alignmentStart) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	101 final int startPosition = currentPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	102
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	103 // We avoid sign problems with '%' below by masking off the sign bit:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	104 final long unsignedAddend = (baseAddress() + startPosition + alignmentStart) & Long.MAX_VALUE;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	105
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	106 final int misalignmentSize = (int) (unsignedAddend % alignment);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	107 final int padSize = misalignmentSize > 0 ? (alignment - misalignmentSize) : 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	108 for (int i = 0; i < padSize; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	109 emitByte(padByte);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	110 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	111 new AlignmentPadding(Assembler.this, startPosition, currentPosition(), alignment, alignmentStart, requiredSpace, padByte) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	112 public boolean isCode() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	113 return isValidCode;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	114 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	115 };
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	116 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	117
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	118 public void align(int alignment) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	119 alignIfSpaceLeftSmallerThan(alignment, alignment, 0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	120 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	121
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	122 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	123 * Enforce that the next assembled object fits within an aligned chunk.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	124 * The specified space required by the next assembled object must be smaller or equals to the specified alignment. If the object cannot fit in the current chunk,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	125 * Inserts as many {@linkplain #padByte pad bytes} as necessary to ensure that the next assembled object starts
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	126 * at the next alignment.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	127 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	128 * @param alignment
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	129 * the next assembled object is guaranteed to fit in within a block of memory whose starting address is the next
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	130 * address starting at the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	131 * current address that is divisible by this value.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	132 * @param requiredSpace size of the next assembled object; it must be smaller or equals to alignment
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	133 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	134 public boolean align(int alignment, int requiredSpace) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	135 if (alignment < requiredSpace) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	136 return false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	137 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	138 alignIfSpaceLeftSmallerThan(alignment, requiredSpace, 0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	139 return true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	140 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	141
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	142 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	143 * Inserts as many {@linkplain #padByte pad bytes} as necessary to ensure that the nth byte within the next assembled object starts
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	144 * at an address aligned by a given number.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	145 * @param alignment
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	146 * @param alignmentStart where the alignment should start within the next assembled object.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	147 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	148 public void alignAfter(int alignment, int alignmentStart) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	149 alignIfSpaceLeftSmallerThan(alignment, alignment, alignmentStart);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	150 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	151
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	152 public void inlineByte(byte byteValue) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	153 addInlineData(currentPosition(), Bytes.SIZE);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	154 emitByte(byteValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	155 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	156
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	157 public void inlineByteArray(byte[] byteArrayValue) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	158 addInlineData(currentPosition(), byteArrayValue.length);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	159 emitByteArray(byteArrayValue, 0, byteArrayValue.length);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	160 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	161
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	162 public void inlineByteArray(byte[] byteArrayValue, int offset, int length) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	163 addInlineData(currentPosition(), length);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	164 emitByteArray(byteArrayValue, offset, length);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	165 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	166
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	167 public void inlineShort(short shortValue) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	168 addInlineData(currentPosition(), Shorts.SIZE);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	169 emitShort(shortValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	170 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	171
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	172 public void inlineInt(int intValue) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	173 addInlineData(currentPosition(), Ints.SIZE);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	174 emitInt(intValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	175 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	176
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	177 public void inlineLong(long longValue) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	178 addInlineData(currentPosition(), Longs.SIZE);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	179 emitLong(longValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	180 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	181
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	182 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	183 * Inlines the absolute address of a position (represented by a given label) in the assembled code.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	184 * The absolute address is calculated as {@code baseAddress() + label.position()}. The size
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	185 * of the inlined address is determined by {@link Assembler#wordWidth()}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	186 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	187 * @param label the label whose absolute address is to be inlined
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	188 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	189 public AddressLiteral inlineAddress(Label label) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	190 final int startPosition = currentPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	191 // Emit placeholder bytes
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	192 final WordWidth width = wordWidth();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	193 for (int i = 0; i < width.numberOfBytes; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	194 emitByte((byte) 0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	195 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	196 final AddressLiteral addressLiteral = new AddressLiteral(Assembler.this, startPosition, currentPosition(), label);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	197 assert addressLiteral.size() == width.numberOfBytes;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	198 return addressLiteral;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	199 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	200
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	201 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	202 * Inlines the offset between two positions (represented by given labels) in the assembled code.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	203 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	204 * @param base the label whose position marks the base of the offset
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	205 * @param target the label whose position marks the target of the offset
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	206 * @param width the fixed size to be used for the offset
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	207 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	208 public OffsetLiteral inlineOffset(Label target, Label base, WordWidth width) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	209 final int startPosition = currentPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	210 for (int i = 0; i < width.numberOfBytes; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	211 emitByte((byte) 0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	212 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	213 final OffsetLiteral offsetLiteral = new OffsetLiteral(Assembler.this, startPosition, currentPosition(), target, base);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	214 assert offsetLiteral.size() == width.numberOfBytes;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	215 return offsetLiteral;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	216 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	217 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	218
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	219 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	220 * Gets the number of bytes that have been written to the underlying output stream.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	221 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	222 public int currentPosition() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	223 return stream.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	224 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	225
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	226 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	227 * Gets the start address of the code assembled by this assembler.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	228 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	229 public abstract long baseAddress();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	230
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	231 private ByteArrayOutputStream stream = new ByteArrayOutputStream();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	232
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	233 protected void emitByte(int byteValue) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	234 stream.write(byteValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	235 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	236
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	237 protected void emitZeroes(int count) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	238 for (int i = 0; i < count; ++i) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	239 stream.write(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	240 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	241 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	242
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	243 protected abstract void emitShort(short shortValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	244
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	245 protected abstract void emitInt(int intValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	246
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	247 protected abstract void emitLong(long longValue);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	248
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	249 public void emitByteArray(byte[] byteArrayValue, int off, int len) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	250 stream.write(byteArrayValue, off, len);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	251 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	252
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	253 private boolean selectingLabelInstructions = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	254
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	255 boolean selectingLabelInstructions() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	256 return selectingLabelInstructions;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	257 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	258
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	259 private final Set<Label> boundLabels = Collections.newSetFromMap(new IdentityHashMap<Label, Boolean>());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	260
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	261 public Set<Label> boundLabels() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	262 return boundLabels;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	263 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	264
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	265 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	266 * Binds a given label to the current position in the assembler's instruction stream. The assembler may update the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	267 * label's position if any emitted instructions change lengths, so that this label keeps addressing the same logical
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	268 * position.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	269 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	270 * @param label
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	271 * the label that is to be bound to the current position
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	272 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	273 * @see Label#fix32
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	274 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	275 public final void bindLabel(Label label) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	276 label.bind(currentPosition());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	277 boundLabels.add(label);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	278 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	279
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	280 private final List<AssembledObject> assembledObjects = new LinkedList<>();
bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	281 private final List<MutableAssembledObject> mutableAssembledObjects = new LinkedList<>();
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	282
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	283 private int potentialExpansionSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	284
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	285 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	286 * Adds the description of an instruction that is fixed in size.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	287 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	288 * @param fixedSizeAssembledObject
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	289 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	290 void addFixedSizeAssembledObject(AssembledObject fixedSizeAssembledObject) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	291 assembledObjects.add(fixedSizeAssembledObject);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	292 if (fixedSizeAssembledObject instanceof MutableAssembledObject) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	293 mutableAssembledObjects.add((MutableAssembledObject) fixedSizeAssembledObject);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	294 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	295 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	296
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	297 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	298 * Adds the description of an instruction that can change in size, depending on where it is located in the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	299 * instruction and/or where another object it addresses is located in the instruction stream.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	300 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	301 * @param spanDependentInstruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	302 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	303 void addSpanDependentInstruction(InstructionWithOffset spanDependentInstruction) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	304 assembledObjects.add(spanDependentInstruction);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	305 mutableAssembledObjects.add(spanDependentInstruction);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	306 // A span-dependent instruction's offset operand can potentially grow from 8 bits to 32 bits.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	307 // Also, some instructions need an extra byte for encoding when not using an 8-bit operand.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	308 // Together, this might enlarge every span-dependent label instruction by maximally 4 bytes.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	309 potentialExpansionSize += 4;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	310 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	311
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	312 void addAlignmentPadding(AlignmentPadding alignmentPadding) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	313 assembledObjects.add(alignmentPadding);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	314 mutableAssembledObjects.add(alignmentPadding);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	315 potentialExpansionSize += alignmentPadding.alignment() - alignmentPadding.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	316 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	317
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	318 void addInlineData(int startPosition, int size) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	319 assembledObjects.add(new AssembledObject(startPosition, startPosition + size) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	320 public boolean isCode() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	321 return false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	322 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	323 });
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	324 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	325
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	326 private void gatherLabels() throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	327 for (AssembledObject assembledObject : assembledObjects) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	328 if (assembledObject instanceof InstructionWithLabel) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	329 final InstructionWithLabel labelInstruction = (InstructionWithLabel) assembledObject;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	330 switch (labelInstruction.label().state()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	331 case UNASSIGNED:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	332 throw new AssemblyException("unassigned label");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	333 case BOUND:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	334 boundLabels.add(labelInstruction.label());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	335 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	336 default:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	337 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	338 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	339 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	340 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	341 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	342
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	343 private boolean updateSpanDependentInstruction(InstructionWithOffset instruction) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	344 if (!instruction.updateLabelSize()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	345 return false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	346 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	347 final int oldSize = instruction.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	348 final int oldEndPosition = instruction.endPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	349 stream.reset();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	350 instruction.assemble();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	351 final int newSize = stream.toByteArray().length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	352 instruction.setSize(newSize);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	353 final int delta = newSize - oldSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	354 adjustMutableAssembledObjects(delta, oldEndPosition, null);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	355 return true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	356 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	357
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	358 private boolean updateAlignmentPadding(AlignmentPadding alignmentPadding) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	359 final int oldSize = alignmentPadding.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	360 final int oldEndPosition = alignmentPadding.endPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	361 alignmentPadding.updatePadding();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	362 final int newSize = alignmentPadding.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	363 if (oldSize != newSize) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	364 // Only if the padding expanded will subsequent objects in the stream need to be adjusted
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	365 final int delta = newSize - oldSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	366 adjustMutableAssembledObjects(delta, oldEndPosition, alignmentPadding);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	367 return true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	368 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	369 return false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	370 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	371
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	372 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	373 * Adjusts the position of all the mutable objects that are currently at or after a given position.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	374 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	375 * @param delta the amount by which the position of each mutable object is to be adjusted
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	376 * @param startPosition only mutable objects whose current {@linkplain AssembledObject#startPosition() start
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	377 * position} is equal to or greater than this value are adjusted
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	378 * @param adjustedPadding the padding object whose adjustment caused the need for this call. If this call was made
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	379 * for some other reason than having adjusted a padding object's size, then this value will be null. In this
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	380 * value is not null, then its position will not be adjusted by this call.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	381 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	382 private void adjustMutableAssembledObjects(int delta, int startPosition, AlignmentPadding adjustedPadding) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	383 for (Label label : boundLabels) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	384 if (label.position() >= startPosition) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	385 label.adjust(delta);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	386 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	387 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	388
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	389 for (MutableAssembledObject mutableAssembledObject : mutableAssembledObjects) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	390 if (mutableAssembledObject != adjustedPadding && mutableAssembledObject.startPosition() >= startPosition) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	391 mutableAssembledObject.adjust(delta);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	392 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	393 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	394 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	395
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	396 private void updateSpanDependentVariableInstructions() throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	397 boolean changed;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	398 do {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	399 changed = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	400 for (MutableAssembledObject mutableAssembledObject : mutableAssembledObjects) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	401 if (mutableAssembledObject instanceof InstructionWithOffset) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	402 changed \|= updateSpanDependentInstruction((InstructionWithOffset) mutableAssembledObject);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	403 } else if (mutableAssembledObject instanceof AlignmentPadding) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	404 changed \|= updateAlignmentPadding((AlignmentPadding) mutableAssembledObject);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	405 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	406 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	407 } while (changed);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	408 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	409
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	410 private int writeOutput(OutputStream outputStream, byte[] initialBytes, InlineDataRecorder inlineDataRecorder) throws IOException, AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	411 selectingLabelInstructions = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	412 int bytesWritten = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	413 try {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	414 int initialOffset = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	415 for (AssembledObject assembledObject : assembledObjects) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	416 if (inlineDataRecorder != null && !assembledObject.isCode()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	417 inlineDataRecorder.add(new InlineDataDescriptor.ByteData(assembledObject.startPosition(), assembledObject.size()));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	418 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	419
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	420 if (assembledObject instanceof MutableAssembledObject) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	421 final MutableAssembledObject mutableAssembledObject = (MutableAssembledObject) assembledObject;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	422
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	423 // Copy the original assembler output between the end of the last mutable assembled object and the start of the current one
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	424 final int length = mutableAssembledObject.initialStartPosition() - initialOffset;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	425 outputStream.write(initialBytes, initialOffset, length);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	426 bytesWritten += length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	427
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	428 // Now (re)assemble the mutable assembled object
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	429 stream.reset();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	430 mutableAssembledObject.assemble();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	431 stream.writeTo(outputStream);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	432 bytesWritten += stream.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	433 initialOffset = mutableAssembledObject.initialEndPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	434 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	435 // Copy the original assembler output between the end of the last assembled object and the end of current one
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	436 final int length = assembledObject.endPosition() - initialOffset;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	437 outputStream.write(initialBytes, initialOffset, length);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	438 bytesWritten += length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	439 initialOffset = assembledObject.endPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	440 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	441 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	442
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	443 // Copy the original assembler output (if any) after the last mutable assembled object
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	444 outputStream.write(initialBytes, initialOffset, initialBytes.length - initialOffset);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	445 bytesWritten += initialBytes.length - initialOffset;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	446
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	447 if (padOutput) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	448 final int padding = (initialBytes.length + potentialExpansionSize) - bytesWritten;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	449 assert padding >= 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	450 if (padding > 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	451 stream.reset();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	452 emitPadding(padding);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	453 stream.writeTo(outputStream);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	454 bytesWritten += padding;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	455 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	456 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	457 return bytesWritten;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	458 } finally {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	459 selectingLabelInstructions = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	460 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	461 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	462
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	463 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	464 * Emits padding to the instruction stream in the form of NOP instructions.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	465 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	466 * @param numberOfBytes
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	467 * @throws AssemblyException if exactly {@code numberOfBytes} cannot be emitted as a sequence of one or more valid NOP instructions
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	468 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	469 protected abstract void emitPadding(int numberOfBytes) throws AssemblyException;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	470
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	471 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	472 * Writes the object code assembled so far to a given output stream.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	473 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	474 * @return the number of bytes written {@code outputStream}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	475 * @throws AssemblyException
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	476 * if there any problem with binding labels to addresses
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	477 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	478 public int output(OutputStream outputStream, InlineDataRecorder inlineDataRecorder) throws IOException, AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	479 final int upperLimitForCurrentOutputSize = upperLimitForCurrentOutputSize();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	480 final byte[] initialBytes = stream.toByteArray();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	481 gatherLabels();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	482 updateSpanDependentVariableInstructions();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	483 final int bytesWritten = writeOutput(outputStream, initialBytes, inlineDataRecorder);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	484 assert !padOutput \|\| upperLimitForCurrentOutputSize == bytesWritten;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	485 return bytesWritten;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	486 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	487
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	488 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	489 * Gets the maximum size of the code array that would be assembled by a call to {@link #output(OutputStream)} or
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	490 * {@link #toByteArray()}. For a variable sized instruction set (e.g. x86), the exact size may be known until the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	491 * code is assembled as the size of certain instructions depends on their position in the instruction and/or the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	492 * {@linkplain #baseAddress() base address} at which the code is being assembled.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	493 * <p>
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	494 * <b>Note that any subsequent call that adds a new instruction to the instruction stream invalidates the value
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	495 * returned by this method.</b>
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	496 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	497 public int upperLimitForCurrentOutputSize() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	498 return currentPosition() + potentialExpansionSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	499 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	500
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	501 private boolean padOutput;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	502
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	503 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	504 * Sets or unsets the flag determining if the code assembled by a call to {@link #output(OutputStream)} or
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	505 * {@link #toByteArray()} should be padded with NOPs at the end to ensure that the code size equals the value
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	506 * returned by {@link #upperLimitForCurrentOutputSize()}. This default value of the flag is {@code false}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	507 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	508 public void setPadOutput(boolean flag) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	509 padOutput = flag;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	510 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	511
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	512 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	513 * Returns the object code assembled so far in a byte array.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	514 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	515 * @throws AssemblyException
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	516 * if there any problem with binding labels to addresses
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	517 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	518 public byte[] toByteArray(InlineDataRecorder inlineDataRecorder) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	519 final ByteArrayOutputStream baos = new ByteArrayOutputStream(upperLimitForCurrentOutputSize());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	520 try {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	521 output(baos, inlineDataRecorder);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	522 baos.close();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	523 final byte[] result = baos.toByteArray();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	524 return result;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	525 } catch (IOException ioException) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	526 throw ProgramError.unexpected("IOException during output to byte array", ioException);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	527 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	528 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	529
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	530 public byte[] toByteArray() throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	531 return toByteArray(null);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	532 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	533
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	534 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	535 * @see Label#fix32(int)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	536 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	537 protected void fixLabel32(Label label, int address32) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	538 label.fix32(address32);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	539 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	540
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	541 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	542 * @see Label#fix64(long)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	543 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	544 protected void fixLabel64(Label label, long address64) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	545 label.fix64(address64);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	546 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	547
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	548 protected int address32(Label label) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	549 return label.address32();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	550 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	551
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	552 protected long address64(Label label) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	553 return label.address64();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	554 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	555
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	556 protected void checkConstraint(boolean passed, String expression) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	557 if (!passed) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	558 throw new IllegalArgumentException(expression);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	559 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	560 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	561
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	562 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	563 * Calculate the difference between two Labels. This works whether the labels
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	564 * are fixed or bound.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	565 * @throws AssemblyException
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	566 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	567 public int labelOffsetRelative(Label label, Label relativeTo) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	568 return labelOffsetRelative(label, 0) - labelOffsetRelative(relativeTo, 0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	569 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	570
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	571 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	572 * Calculate the difference between a Label and a position within the assembled code.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	573 * @throws AssemblyException
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	574 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	575 public int labelOffsetRelative(Label label, int position) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	576 switch (label.state()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	577 case BOUND: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	578 return label.position() - position;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	579 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	580 case FIXED_32: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	581 final Assembler32 assembler32 = (Assembler32) this;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	582 return assembler32.address(label) - (assembler32.startAddress() + position);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	583 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	584 case FIXED_64: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	585 final Assembler64 assembler64 = (Assembler64) this;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	586 final long offset64 = assembler64.address(label) - (assembler64.startAddress() + position);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	587 if (Longs.numberOfEffectiveSignedBits(offset64) > 32) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	588 throw new AssemblyException("fixed 64-bit label out of 32-bit range");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	589 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	590 return (int) offset64;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	591 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	592 default: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	593 throw new AssemblyException("unassigned label");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	594 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	595 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	596 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	597
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	598 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	599 * Calculate the difference between a Label and an assembled object.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	600 * Different CPUs have different conventions for which end of an
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	601 * instruction to measure from.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	602 * @throws AssemblyException
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	603 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	604 public final int offsetInstructionRelative(Label label, AssemblyObject assembledObject) throws AssemblyException {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	605 final int position = (isa().relativeBranchFromStart) ? assembledObject.startPosition() : assembledObject.endPosition();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	606 return labelOffsetRelative(label, position);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	607 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	608 }

Mercurial > hg > truffle

annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/Assembler.java @ 4142:bc8527f3071c