Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.criutils/src/com/oracle/max/criutils/JniMangle.java @ 5753:f9c9c01969c0
Fixed an issue with the objectStamp(), integerStamp(), and floatStamp() methods.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 03 Jul 2012 11:16:38 +0200 |
parents | b4c406861c33 |
children | 4d7175cf3526 |
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1 /* |
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2 * Copyright (c) 2007, 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.oracle.max.criutils; |
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24 |
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25 import com.oracle.graal.api.meta.*; |
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26 |
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27 /** |
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28 * A utility for mangling Java method name and signatures into C function names. |
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29 * |
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30 * @see "http://java.sun.com/j2se/1.5.0/docs/guide/jni/spec/design.html#wp615" |
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31 */ |
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32 public final class JniMangle { |
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33 |
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34 private JniMangle() { |
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35 } |
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36 |
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37 /** |
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38 * Mangles a given string such that it can be represented as (part of) a valid C function name. |
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39 */ |
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40 private static String mangle(String name) { |
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41 final StringBuilder mangledName = new StringBuilder(100); |
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42 final int length = name.length(); |
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43 for (int i = 0; i < length; i++) { |
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44 final char ch = name.charAt(i); |
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45 if (isAlphaNumeric(ch)) { |
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46 mangledName.append(ch); |
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47 } else if (ch == '_') { |
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48 mangledName.append("_1"); |
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49 } else if (ch == '.') { |
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50 mangledName.append("_"); |
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51 } else if (ch == ';') { |
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52 mangledName.append("_2"); |
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53 } else if (ch == '[') { |
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54 mangledName.append("_3"); |
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55 } else { |
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56 mangledName.append(String.format("%04x", (int) ch)); |
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57 } |
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58 } |
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59 return mangledName.toString(); |
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60 } |
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61 |
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62 /** |
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63 * The delimiter in the string returned by {@link #mangleMethod(TypeDescriptor, String, SignatureDescriptor, boolean)} separating |
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64 * the short mangled form from the suffix to be added to obtain the long mangled form. |
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65 */ |
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66 public static final char LONG_NAME_DELIMITER = ' '; |
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67 |
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68 /** |
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69 * Mangles a Java method to the symbol(s) to be used when binding it to a native function. |
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70 * If {@code signature} is {@code null}, then a non-qualified symbol is returned. |
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71 * Otherwise, a qualified symbol is returned. A qualified symbol has its non-qualified |
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72 * prefix separated from its qualifying suffix by {@link #LONG_NAME_DELIMITER} if |
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73 * {@code splitSuffix} is {@code true}. |
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74 * |
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75 * @param declaringClass a fully qualified class descriptor |
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76 * @param name a Java method name (not checked here for validity) |
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77 * @param signature if non-null, a method signature to include in the mangled name |
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78 * @param splitSuffix determines if {@link #LONG_NAME_DELIMITER} should be used as described above |
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79 * @return the symbol for the C function as described above |
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80 */ |
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81 public static String mangleMethod(ResolvedJavaType declaringClass, String name, Signature signature, boolean splitSuffix) { |
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82 final StringBuilder result = new StringBuilder(100); |
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83 final String declaringClassName = MetaUtil.toJavaName(declaringClass); |
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84 result.append("Java_").append(mangle(declaringClassName)).append('_').append(mangle(name)); |
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85 if (signature != null) { |
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86 if (splitSuffix) { |
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87 result.append(LONG_NAME_DELIMITER); |
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88 } |
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89 result.append("__"); |
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90 final String sig = signature.asString(); |
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91 final String parametersSignature = sig.substring(1, sig.lastIndexOf(')')).replace('/', '.').replace('$', '.'); |
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92 result.append(mangle(parametersSignature)); |
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93 } |
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94 return result.toString(); |
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95 } |
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added mechanism (enabled by -G:PICache and -G:PiFilter) for saving/loading method profiling info to/from disk
Doug Simon <doug.simon@oracle.com>
parents:
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changeset
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96 |
4c3d953f8131
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Doug Simon <doug.simon@oracle.com>
parents:
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97 private static boolean isAlphaNumeric(char ch) { |
4c3d953f8131
added mechanism (enabled by -G:PICache and -G:PiFilter) for saving/loading method profiling info to/from disk
Doug Simon <doug.simon@oracle.com>
parents:
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changeset
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98 return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9'); |
4c3d953f8131
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Doug Simon <doug.simon@oracle.com>
parents:
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changeset
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99 } |
4c3d953f8131
added mechanism (enabled by -G:PICache and -G:PiFilter) for saving/loading method profiling info to/from disk
Doug Simon <doug.simon@oracle.com>
parents:
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changeset
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100 } |