Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/dis/DisassemblyPrinter.java @ 3735:61369a06f03c
Updated authors file.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 20:36:28 +0100 |
parents | e233f5660da4 |
children | bc8527f3071c |
rev | line source |
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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) throws IOException { |
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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 } |