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

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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
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1 /*
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2 * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.max.asm.dis;
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24
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25 import java.io.*;
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26 import java.util.*;
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27
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28 import com.sun.max.*;
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29 import com.sun.max.lang.*;
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30
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31 /**
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32 * Utility for printing a textual listing from a set of {@link DisassembledObject}s.
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33 */
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34 public class DisassemblyPrinter {
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35
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36 protected final boolean includeHeader;
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37
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38 public DisassemblyPrinter(boolean includeHeader) {
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39 this.includeHeader = includeHeader;
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40 }
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41
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42 public static final String SPACE = " ";
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43 public static final int NUMBER_OF_INSTRUCTION_CHARS = 48;
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44
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45 /**
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46 * Prints a disassembly for a given sequence of disassembled objects.
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47 *
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48 * @param outputStream the stream to which the disassembly wil be printed
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49 * @param disassembledObjects the disassembled objects to be printed
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50 */
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51 public void print(Disassembler disassembler, OutputStream outputStream, List<DisassembledObject> disassembledObjects) {
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52 final PrintStream stream = outputStream instanceof PrintStream ? (PrintStream) outputStream : new PrintStream(outputStream);
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53 final int nOffsetChars = Integer.toString(Utils.last(disassembledObjects).startPosition()).length();
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54 final int nLabelChars = disassembler.addressMapper().maximumLabelNameLength();
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55 if (includeHeader) {
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56 printHeading(disassembler, stream, nOffsetChars, nLabelChars);
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57 }
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58 for (DisassembledObject disassembledObject : disassembledObjects) {
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59 printDisassembledObject(disassembler, stream, nOffsetChars, nLabelChars, disassembledObject);
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60 }
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61 }
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62
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63 protected void printDisassembledObject(Disassembler disassembler, final PrintStream stream, final int nOffsetChars, final int nLabelChars, DisassembledObject disassembledObject) {
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64 stream.print(addressString(disassembler, disassembledObject));
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65 stream.print(SPACE);
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66 stream.printf("%0" + nOffsetChars + "d", disassembledObject.startPosition());
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67 stream.print(SPACE);
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68 final DisassembledLabel label = disassembler.addressMapper().labelAt(disassembledObject.startAddress());
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69 if (label != null) {
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70 stream.print(Strings.padLengthWithSpaces(label.name(), nLabelChars) + ":");
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71 } else {
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72 stream.print(Strings.spaces(nLabelChars) + " ");
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73 }
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74 stream.print(SPACE);
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75 stream.print(Strings.padLengthWithSpaces(disassembledObjectString(disassembler, disassembledObject), NUMBER_OF_INSTRUCTION_CHARS));
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76 stream.print(SPACE);
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77 stream.print(DisassembledInstruction.toHexString(disassembledObject.bytes()));
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78 stream.println();
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79 }
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80
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81 protected void printHeading(Disassembler disassembler, PrintStream stream, int nOffsetChars, int nLabelChars) {
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82 String s = Strings.padLengthWithSpaces("Address", (disassembler.addressWidth().numberOfBytes * 2) + 2) + SPACE;
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83 s += Strings.padLengthWithSpaces("+", nOffsetChars) + SPACE;
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84 s += Strings.padLengthWithSpaces(":", nLabelChars + 1) + SPACE;
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85 s += Strings.padLengthWithSpaces("Instruction", NUMBER_OF_INSTRUCTION_CHARS) + SPACE;
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86 s += "Bytes";
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87 stream.println(s);
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88 stream.println(Strings.times('-', s.length()));
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89 }
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90
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91 protected String addressString(Disassembler disassembler, DisassembledObject disassembledObject) {
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92 final String format = "0x%0" + disassembler.addressWidth().numberOfBytes + "X";
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93 return String.format(format, disassembledObject.startAddress().asLong());
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94 }
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95
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96 protected String disassembledObjectString(Disassembler disassembler, DisassembledObject disassembledObject) {
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97 return disassembledObject.toString(disassembler.addressMapper());
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98 }
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99 }