Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/debug/CFGPrinterObserver.java @ 2811:03027a0ef819
Allow to specify the output stream in CFGPrinterObserver (for C1XVisualizer)
author | Peter Hofer <peter.hofer@jku.at> |
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date | Mon, 30 May 2011 15:11:34 +0200 |
parents | d3fc4fe063bf |
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rev | line source |
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1 /* |
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2 * Copyright (c) 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.c1x.debug; |
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24 |
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25 import java.io.*; |
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26 |
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27 import com.sun.c1x.*; |
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28 import com.sun.c1x.observer.*; |
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29 import com.sun.cri.ri.*; |
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30 |
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31 /** |
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32 * Observes compilation events and uses {@link CFGPrinter} to produce a control flow graph for the <a |
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33 * href="https://c1visualizer.dev.java.net/">C1 Visualizer</a>. |
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34 * |
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35 * @author Peter Hofer |
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36 */ |
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37 public class CFGPrinterObserver implements CompilationObserver { |
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38 |
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39 private C1XCompilation currentCompilation; |
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40 private CFGPrinter cfgPrinter; |
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41 private ByteArrayOutputStream buffer = null; |
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42 private final OutputStream stream; |
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43 |
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44 public CFGPrinterObserver() { |
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45 this(CFGPrinter.cfgFileStream()); |
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46 } |
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47 |
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48 public CFGPrinterObserver(OutputStream stream) { |
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49 this.stream = stream; |
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50 } |
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51 |
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52 @Override |
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53 public void compilationStarted(CompilationEvent event) { |
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54 // Supports only one compilation at the same time |
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55 assert currentCompilation == null; |
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56 |
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57 currentCompilation = event.getCompilation(); |
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58 if (buffer == null) { |
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59 buffer = new ByteArrayOutputStream(); |
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60 } |
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61 cfgPrinter = new CFGPrinter(buffer, currentCompilation.target); |
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62 cfgPrinter.printCompilation(currentCompilation.method); |
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63 } |
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64 |
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65 @Override |
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66 public void compilationEvent(CompilationEvent event) { |
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67 assert currentCompilation == event.getCompilation(); |
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68 |
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69 String label = event.getLabel(); |
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70 |
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71 if (event.getAllocator() != null && event.getIntervals() != null) { |
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72 cfgPrinter.printIntervals(event.getAllocator(), event.getIntervals(), label); |
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73 } |
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74 |
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75 boolean cfgprinted = false; |
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76 |
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77 if (event.getBlockMap() != null && event.getCodeSize() >= 0) { |
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78 cfgPrinter.printCFG(event.getMethod(), event.getBlockMap(), event.getCodeSize(), label, event.isHIRValid(), event.isLIRValid()); |
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79 cfgprinted = true; |
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80 } |
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81 |
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82 // TODO fix that when schedule is here (startBlock : Instruction->Block) |
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83 /*if (event.getStartBlock() != null) { |
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84 cfgPrinter.printCFG((BlockBegin) event.getStartBlock(), label, event.isHIRValid(), event.isLIRValid()); |
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85 cfgprinted = true; |
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86 }*/ |
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87 |
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88 if (event.getTargetMethod() != null) { |
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89 if (cfgprinted) { |
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90 // Avoid duplicate "cfg" section |
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91 label = null; |
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92 } |
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93 |
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94 RiRuntime runtime = event.getCompilation().runtime; |
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95 cfgPrinter.printMachineCode(runtime.disassemble(event.getTargetMethod()), label); |
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96 } |
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97 } |
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98 |
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99 @Override |
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100 public void compilationFinished(CompilationEvent event) { |
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101 assert currentCompilation == event.getCompilation(); |
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102 |
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103 cfgPrinter.flush(); |
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104 |
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105 if (stream != null) { |
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106 synchronized (stream) { |
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107 try { |
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108 stream.write(buffer.toByteArray()); |
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109 stream.flush(); |
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110 } catch (IOException e) { |
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111 TTY.println("WARNING: Error writing CFGPrinter output for %s: %s", event.getMethod(), e); |
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112 } |
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113 } |
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114 } |
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115 |
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116 buffer.reset(); |
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117 cfgPrinter = null; |
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118 currentCompilation = null; |
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119 } |
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120 } |