1 | /* Demangler for GNU C++ |
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2 | Copyright 1989, 1991, 1994, 1995 Free Software Foundation, Inc. |
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3 | Written by James Clark (jjc@jclark.uucp) |
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4 | Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling |
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5 | |
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6 | This file is part of the libiberty library. |
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7 | Libiberty is free software; you can redistribute it and/or |
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8 | modify it under the terms of the GNU Library General Public |
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9 | License as published by the Free Software Foundation; either |
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10 | version 2 of the License, or (at your option) any later version. |
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11 | |
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12 | Libiberty is distributed in the hope that it will be useful, |
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 | Library General Public License for more details. |
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16 | |
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17 | You should have received a copy of the GNU Library General Public |
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18 | License along with libiberty; see the file COPYING.LIB. If |
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19 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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20 | Boston, MA 02111-1307, USA. */ |
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21 | |
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22 | /* This file exports two functions; cplus_mangle_opname and cplus_demangle. |
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23 | |
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24 | This file imports xmalloc and xrealloc, which are like malloc and |
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25 | realloc except that they generate a fatal error if there is no |
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26 | available memory. */ |
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27 | |
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28 | #include <ctype.h> |
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29 | #include <string.h> |
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30 | #include <stdio.h> |
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31 | |
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32 | #include <demangle.h> |
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33 | #undef CURRENT_DEMANGLING_STYLE |
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34 | #define CURRENT_DEMANGLING_STYLE work->options |
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35 | |
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36 | extern char *xmalloc PARAMS((unsigned)); |
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37 | extern char *xrealloc PARAMS((char *, unsigned)); |
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38 | |
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39 | char * |
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40 | mystrstr (s1, s2) |
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41 | char *s1, *s2; |
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42 | { |
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43 | register char *p = s1; |
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44 | register int len = strlen (s2); |
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45 | |
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46 | for (; (p = strchr (p, *s2)) != 0; p++) |
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47 | { |
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48 | if (strncmp (p, s2, len) == 0) |
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49 | { |
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50 | return (p); |
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51 | } |
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52 | } |
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53 | return (0); |
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54 | } |
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55 | |
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56 | /* In order to allow a single demangler executable to demangle strings |
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57 | using various common values of CPLUS_MARKER, as well as any specific |
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58 | one set at compile time, we maintain a string containing all the |
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59 | commonly used ones, and check to see if the marker we are looking for |
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60 | is in that string. CPLUS_MARKER is usually '$' on systems where the |
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61 | assembler can deal with that. Where the assembler can't, it's usually |
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62 | '.' (but on many systems '.' is used for other things). We put the |
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63 | current defined CPLUS_MARKER first (which defaults to '$'), followed |
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64 | by the next most common value, followed by an explicit '$' in case |
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65 | the value of CPLUS_MARKER is not '$'. |
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66 | |
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67 | We could avoid this if we could just get g++ to tell us what the actual |
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68 | cplus marker character is as part of the debug information, perhaps by |
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69 | ensuring that it is the character that terminates the gcc<n>_compiled |
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70 | marker symbol (FIXME). */ |
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71 | |
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72 | #if !defined (CPLUS_MARKER) |
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73 | #define CPLUS_MARKER '$' |
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74 | #endif |
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75 | |
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76 | enum demangling_styles current_demangling_style = gnu_demangling; |
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77 | |
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78 | static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; |
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79 | |
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80 | void |
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81 | set_cplus_marker_for_demangling (ch) |
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82 | int ch; |
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83 | { |
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84 | cplus_markers[0] = ch; |
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85 | } |
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86 | |
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87 | /* Stuff that is shared between sub-routines. |
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88 | * Using a shared structure allows cplus_demangle to be reentrant. */ |
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89 | |
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90 | struct work_stuff |
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91 | { |
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92 | int options; |
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93 | char **typevec; |
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94 | int ntypes; |
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95 | int typevec_size; |
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96 | int constructor; |
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97 | int destructor; |
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98 | int static_type; /* A static member function */ |
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99 | int const_type; /* A const member function */ |
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100 | }; |
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101 | |
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102 | #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) |
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103 | #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) |
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104 | |
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105 | static const struct optable |
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106 | { |
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107 | const char *in; |
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108 | const char *out; |
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109 | int flags; |
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110 | } optable[] = { |
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111 | {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */ |
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112 | {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */ |
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113 | {"new", " new", 0}, /* old (1.91, and 1.x) */ |
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114 | {"delete", " delete", 0}, /* old (1.91, and 1.x) */ |
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115 | {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */ |
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116 | {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */ |
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117 | {"as", "=", DMGL_ANSI}, /* ansi */ |
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118 | {"ne", "!=", DMGL_ANSI}, /* old, ansi */ |
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119 | {"eq", "==", DMGL_ANSI}, /* old, ansi */ |
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120 | {"ge", ">=", DMGL_ANSI}, /* old, ansi */ |
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121 | {"gt", ">", DMGL_ANSI}, /* old, ansi */ |
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122 | {"le", "<=", DMGL_ANSI}, /* old, ansi */ |
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123 | {"lt", "<", DMGL_ANSI}, /* old, ansi */ |
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124 | {"plus", "+", 0}, /* old */ |
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125 | {"pl", "+", DMGL_ANSI}, /* ansi */ |
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126 | {"apl", "+=", DMGL_ANSI}, /* ansi */ |
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127 | {"minus", "-", 0}, /* old */ |
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128 | {"mi", "-", DMGL_ANSI}, /* ansi */ |
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129 | {"ami", "-=", DMGL_ANSI}, /* ansi */ |
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130 | {"mult", "*", 0}, /* old */ |
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131 | {"ml", "*", DMGL_ANSI}, /* ansi */ |
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132 | {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */ |
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133 | {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */ |
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134 | {"convert", "+", 0}, /* old (unary +) */ |
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135 | {"negate", "-", 0}, /* old (unary -) */ |
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136 | {"trunc_mod", "%", 0}, /* old */ |
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137 | {"md", "%", DMGL_ANSI}, /* ansi */ |
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138 | {"amd", "%=", DMGL_ANSI}, /* ansi */ |
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139 | {"trunc_div", "/", 0}, /* old */ |
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140 | {"dv", "/", DMGL_ANSI}, /* ansi */ |
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141 | {"adv", "/=", DMGL_ANSI}, /* ansi */ |
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142 | {"truth_andif", "&&", 0}, /* old */ |
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143 | {"aa", "&&", DMGL_ANSI}, /* ansi */ |
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144 | {"truth_orif", "||", 0}, /* old */ |
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145 | {"oo", "||", DMGL_ANSI}, /* ansi */ |
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146 | {"truth_not", "!", 0}, /* old */ |
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147 | {"nt", "!", DMGL_ANSI}, /* ansi */ |
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148 | {"postincrement","++", 0}, /* old */ |
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149 | {"pp", "++", DMGL_ANSI}, /* ansi */ |
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150 | {"postdecrement","--", 0}, /* old */ |
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151 | {"mm", "--", DMGL_ANSI}, /* ansi */ |
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152 | {"bit_ior", "|", 0}, /* old */ |
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153 | {"or", "|", DMGL_ANSI}, /* ansi */ |
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154 | {"aor", "|=", DMGL_ANSI}, /* ansi */ |
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155 | {"bit_xor", "^", 0}, /* old */ |
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156 | {"er", "^", DMGL_ANSI}, /* ansi */ |
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157 | {"aer", "^=", DMGL_ANSI}, /* ansi */ |
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158 | {"bit_and", "&", 0}, /* old */ |
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159 | {"ad", "&", DMGL_ANSI}, /* ansi */ |
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160 | {"aad", "&=", DMGL_ANSI}, /* ansi */ |
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161 | {"bit_not", "~", 0}, /* old */ |
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162 | {"co", "~", DMGL_ANSI}, /* ansi */ |
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163 | {"call", "()", 0}, /* old */ |
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164 | {"cl", "()", DMGL_ANSI}, /* ansi */ |
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165 | {"alshift", "<<", 0}, /* old */ |
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166 | {"ls", "<<", DMGL_ANSI}, /* ansi */ |
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167 | {"als", "<<=", DMGL_ANSI}, /* ansi */ |
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168 | {"arshift", ">>", 0}, /* old */ |
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169 | {"rs", ">>", DMGL_ANSI}, /* ansi */ |
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170 | {"ars", ">>=", DMGL_ANSI}, /* ansi */ |
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171 | {"component", "->", 0}, /* old */ |
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172 | {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */ |
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173 | {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */ |
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174 | {"indirect", "*", 0}, /* old */ |
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175 | {"method_call", "->()", 0}, /* old */ |
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176 | {"addr", "&", 0}, /* old (unary &) */ |
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177 | {"array", "[]", 0}, /* old */ |
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178 | {"vc", "[]", DMGL_ANSI}, /* ansi */ |
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179 | {"compound", ", ", 0}, /* old */ |
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180 | {"cm", ", ", DMGL_ANSI}, /* ansi */ |
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181 | {"cond", "?:", 0}, /* old */ |
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182 | {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */ |
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183 | {"max", ">?", 0}, /* old */ |
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184 | {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */ |
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185 | {"min", "<?", 0}, /* old */ |
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186 | {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */ |
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187 | {"nop", "", 0}, /* old (for operator=) */ |
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188 | {"rm", "->*", DMGL_ANSI} /* ansi */ |
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189 | }; |
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190 | |
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191 | |
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192 | typedef struct string /* Beware: these aren't required to be */ |
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193 | { /* '\0' terminated. */ |
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194 | char *b; /* pointer to start of string */ |
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195 | char *p; /* pointer after last character */ |
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196 | char *e; /* pointer after end of allocated space */ |
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197 | } string; |
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198 | |
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199 | #define STRING_EMPTY(str) ((str) -> b == (str) -> p) |
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200 | #define PREPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ |
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201 | string_prepend(str, " ");} |
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202 | #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ |
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203 | string_append(str, " ");} |
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204 | |
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205 | #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */ |
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206 | #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ |
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207 | |
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208 | /* Prototypes for local functions */ |
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209 | |
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210 | static char * |
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211 | mop_up PARAMS ((struct work_stuff *, string *, int)); |
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212 | |
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213 | #if 0 |
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214 | static int |
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215 | demangle_method_args PARAMS ((struct work_stuff *work, const char **, string *)); |
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216 | #endif |
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217 | |
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218 | static int |
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219 | demangle_template PARAMS ((struct work_stuff *work, const char **, string *, |
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220 | string *)); |
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221 | |
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222 | static int |
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223 | demangle_qualified PARAMS ((struct work_stuff *, const char **, string *, |
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224 | int, int)); |
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225 | |
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226 | static int |
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227 | demangle_class PARAMS ((struct work_stuff *, const char **, string *)); |
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228 | |
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229 | static int |
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230 | demangle_fund_type PARAMS ((struct work_stuff *, const char **, string *)); |
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231 | |
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232 | static int |
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233 | demangle_signature PARAMS ((struct work_stuff *, const char **, string *)); |
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234 | |
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235 | static int |
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236 | demangle_prefix PARAMS ((struct work_stuff *, const char **, string *)); |
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237 | |
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238 | static int |
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239 | gnu_special PARAMS ((struct work_stuff *, const char **, string *)); |
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240 | |
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241 | static int |
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242 | arm_special PARAMS ((struct work_stuff *, const char **, string *)); |
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243 | |
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244 | static void |
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245 | string_need PARAMS ((string *, int)); |
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246 | |
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247 | static void |
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248 | string_delete PARAMS ((string *)); |
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249 | |
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250 | static void |
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251 | string_init PARAMS ((string *)); |
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252 | |
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253 | static void |
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254 | string_clear PARAMS ((string *)); |
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255 | |
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256 | #if 0 |
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257 | static int |
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258 | string_empty PARAMS ((string *)); |
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259 | #endif |
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260 | |
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261 | static void |
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262 | string_append PARAMS ((string *, const char *)); |
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263 | |
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264 | static void |
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265 | string_appends PARAMS ((string *, string *)); |
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266 | |
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267 | static void |
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268 | string_appendn PARAMS ((string *, const char *, int)); |
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269 | |
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270 | static void |
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271 | string_prepend PARAMS ((string *, const char *)); |
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272 | |
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273 | static void |
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274 | string_prependn PARAMS ((string *, const char *, int)); |
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275 | |
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276 | static int |
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277 | get_count PARAMS ((const char **, int *)); |
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278 | |
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279 | static int |
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280 | consume_count PARAMS ((const char **)); |
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281 | |
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282 | static int |
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283 | demangle_args PARAMS ((struct work_stuff *, const char **, string *)); |
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284 | |
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285 | static int |
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286 | do_type PARAMS ((struct work_stuff *, const char **, string *)); |
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287 | |
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288 | static int |
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289 | do_arg PARAMS ((struct work_stuff *, const char **, string *)); |
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290 | |
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291 | static void |
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292 | demangle_function_name PARAMS ((struct work_stuff *, const char **, string *, |
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293 | const char *)); |
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294 | |
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295 | static void |
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296 | remember_type PARAMS ((struct work_stuff *, const char *, int)); |
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297 | |
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298 | static void |
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299 | forget_types PARAMS ((struct work_stuff *)); |
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300 | |
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301 | static void |
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302 | string_prepends PARAMS ((string *, string *)); |
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303 | |
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304 | /* Translate count to integer, consuming tokens in the process. |
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305 | Conversion terminates on the first non-digit character. |
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306 | Trying to consume something that isn't a count results in |
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307 | no consumption of input and a return of 0. */ |
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308 | |
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309 | static int |
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310 | consume_count (type) |
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311 | const char **type; |
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312 | { |
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313 | int count = 0; |
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314 | |
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315 | while (isdigit (**type)) |
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316 | { |
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317 | count *= 10; |
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318 | count += **type - '0'; |
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319 | (*type)++; |
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320 | } |
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321 | return (count); |
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322 | } |
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323 | |
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324 | int |
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325 | cplus_demangle_opname (opname, result, options) |
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326 | char *opname; |
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327 | char *result; |
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328 | int options; |
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329 | { |
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330 | int len, i, len1, ret; |
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331 | string type; |
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332 | struct work_stuff work[1]; |
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333 | const char *tem; |
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334 | |
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335 | len = strlen(opname); |
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336 | result[0] = '\0'; |
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337 | ret = 0; |
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338 | work->options = options; |
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339 | |
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340 | if (opname[0] == '_' && opname[1] == '_' |
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341 | && opname[2] == 'o' && opname[3] == 'p') |
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342 | { |
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343 | /* ANSI. */ |
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344 | /* type conversion operator. */ |
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345 | tem = opname + 4; |
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346 | if (do_type (work, &tem, &type)) |
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347 | { |
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348 | strcat (result, "operator "); |
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349 | strncat (result, type.b, type.p - type.b); |
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350 | string_delete (&type); |
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351 | ret = 1; |
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352 | } |
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353 | } |
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354 | else if (opname[0] == '_' && opname[1] == '_' |
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355 | && opname[2] >= 'a' && opname[2] <= 'z' |
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356 | && opname[3] >= 'a' && opname[3] <= 'z') |
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357 | { |
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358 | if (opname[4] == '\0') |
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359 | { |
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360 | /* Operator. */ |
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361 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
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362 | { |
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363 | if (strlen (optable[i].in) == 2 |
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364 | && memcmp (optable[i].in, opname + 2, 2) == 0) |
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365 | { |
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366 | strcat (result, "operator"); |
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367 | strcat (result, optable[i].out); |
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368 | ret = 1; |
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369 | break; |
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370 | } |
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371 | } |
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372 | } |
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373 | else |
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374 | { |
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375 | if (opname[2] == 'a' && opname[5] == '\0') |
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376 | { |
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377 | /* Assignment. */ |
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378 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
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379 | { |
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380 | if (strlen (optable[i].in) == 3 |
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381 | && memcmp (optable[i].in, opname + 2, 3) == 0) |
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382 | { |
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383 | strcat (result, "operator"); |
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384 | strcat (result, optable[i].out); |
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385 | ret = 1; |
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386 | break; |
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387 | } |
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388 | } |
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389 | } |
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390 | } |
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391 | } |
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392 | else if (len >= 3 |
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393 | && opname[0] == 'o' |
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394 | && opname[1] == 'p' |
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395 | && strchr (cplus_markers, opname[2]) != NULL) |
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396 | { |
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397 | /* see if it's an assignment expression */ |
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398 | if (len >= 10 /* op$assign_ */ |
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399 | && memcmp (opname + 3, "assign_", 7) == 0) |
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400 | { |
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401 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
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402 | { |
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403 | len1 = len - 10; |
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404 | if (strlen (optable[i].in) == len1 |
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405 | && memcmp (optable[i].in, opname + 10, len1) == 0) |
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406 | { |
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407 | strcat (result, "operator"); |
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408 | strcat (result, optable[i].out); |
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409 | strcat (result, "="); |
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410 | ret = 1; |
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411 | break; |
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412 | } |
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413 | } |
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414 | } |
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415 | else |
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416 | { |
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417 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
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418 | { |
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419 | len1 = len - 3; |
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420 | if (strlen (optable[i].in) == len1 |
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421 | && memcmp (optable[i].in, opname + 3, len1) == 0) |
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422 | { |
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423 | strcat (result, "operator"); |
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424 | strcat (result, optable[i].out); |
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425 | ret = 1; |
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426 | break; |
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427 | } |
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428 | } |
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429 | } |
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430 | } |
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431 | else if (len >= 5 && memcmp (opname, "type", 4) == 0 |
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432 | && strchr (cplus_markers, opname[4]) != NULL) |
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433 | { |
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434 | /* type conversion operator */ |
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435 | tem = opname + 5; |
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436 | if (do_type (work, &tem, &type)) |
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437 | { |
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438 | strcat (result, "operator "); |
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439 | strncat (result, type.b, type.p - type.b); |
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440 | string_delete (&type); |
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441 | ret = 1; |
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442 | } |
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443 | } |
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444 | return ret; |
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445 | |
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446 | } |
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447 | /* Takes operator name as e.g. "++" and returns mangled |
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448 | operator name (e.g. "postincrement_expr"), or NULL if not found. |
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449 | |
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450 | If OPTIONS & DMGL_ANSI == 1, return the ANSI name; |
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451 | if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ |
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452 | |
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453 | char * |
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454 | cplus_mangle_opname (opname, options) |
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455 | char *opname; |
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456 | int options; |
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457 | { |
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458 | int i; |
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459 | int len; |
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460 | |
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461 | len = strlen (opname); |
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462 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
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463 | { |
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464 | if (strlen (optable[i].out) == len |
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465 | && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) |
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466 | && memcmp (optable[i].out, opname, len) == 0) |
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467 | return ((char *)optable[i].in); |
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468 | } |
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469 | return (0); |
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470 | } |
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471 | |
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472 | /* check to see whether MANGLED can match TEXT in the first TEXT_LEN |
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473 | characters. */ |
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474 | |
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475 | int cplus_match (mangled, text, text_len) |
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476 | const char *mangled; |
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477 | char *text; |
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478 | int text_len; |
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479 | { |
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480 | if (strncmp (mangled, text, text_len) != 0) { |
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481 | return(0); /* cannot match either */ |
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482 | } else { |
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483 | return(1); /* matches mangled, may match demangled */ |
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484 | } |
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485 | } |
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486 | |
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487 | /* char *cplus_demangle (const char *mangled, int options) |
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488 | |
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489 | If MANGLED is a mangled function name produced by GNU C++, then |
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490 | a pointer to a malloced string giving a C++ representation |
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491 | of the name will be returned; otherwise NULL will be returned. |
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492 | It is the caller's responsibility to free the string which |
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493 | is returned. |
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494 | |
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495 | The OPTIONS arg may contain one or more of the following bits: |
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496 | |
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497 | DMGL_ANSI ANSI qualifiers such as `const' and `void' are |
---|
498 | included. |
---|
499 | DMGL_PARAMS Function parameters are included. |
---|
500 | |
---|
501 | For example, |
---|
502 | |
---|
503 | cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" |
---|
504 | cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" |
---|
505 | cplus_demangle ("foo__1Ai", 0) => "A::foo" |
---|
506 | |
---|
507 | cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" |
---|
508 | cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" |
---|
509 | cplus_demangle ("foo__1Afe", 0) => "A::foo" |
---|
510 | |
---|
511 | Note that any leading underscores, or other such characters prepended by |
---|
512 | the compilation system, are presumed to have already been stripped from |
---|
513 | MANGLED. */ |
---|
514 | |
---|
515 | char * |
---|
516 | cplus_demangle (mangled, options) |
---|
517 | const char *mangled; |
---|
518 | int options; |
---|
519 | { |
---|
520 | string decl; |
---|
521 | int success = 0; |
---|
522 | struct work_stuff work[1]; |
---|
523 | char *demangled = NULL; |
---|
524 | |
---|
525 | if ((mangled != NULL) && (*mangled != '\0')) |
---|
526 | { |
---|
527 | memset ((char *) work, 0, sizeof (work)); |
---|
528 | work -> options = options; |
---|
529 | if ((work->options & DMGL_STYLE_MASK) == 0) |
---|
530 | work->options |= (int)current_demangling_style & DMGL_STYLE_MASK; |
---|
531 | |
---|
532 | string_init (&decl); |
---|
533 | |
---|
534 | /* First check to see if gnu style demangling is active and if the |
---|
535 | string to be demangled contains a CPLUS_MARKER. If so, attempt to |
---|
536 | recognize one of the gnu special forms rather than looking for a |
---|
537 | standard prefix. In particular, don't worry about whether there |
---|
538 | is a "__" string in the mangled string. Consider "_$_5__foo" for |
---|
539 | example. */ |
---|
540 | |
---|
541 | if ((AUTO_DEMANGLING || GNU_DEMANGLING)) |
---|
542 | { |
---|
543 | success = gnu_special (work, &mangled, &decl); |
---|
544 | } |
---|
545 | if (!success) |
---|
546 | { |
---|
547 | success = demangle_prefix (work, &mangled, &decl); |
---|
548 | } |
---|
549 | if (success && (*mangled != '\0')) |
---|
550 | { |
---|
551 | success = demangle_signature (work, &mangled, &decl); |
---|
552 | } |
---|
553 | if (work->constructor == 2) |
---|
554 | { |
---|
555 | string_prepend(&decl, "global constructors keyed to "); |
---|
556 | work->constructor = 0; |
---|
557 | } |
---|
558 | else if (work->destructor == 2) |
---|
559 | { |
---|
560 | string_prepend(&decl, "global destructors keyed to "); |
---|
561 | work->destructor = 0; |
---|
562 | } |
---|
563 | demangled = mop_up (work, &decl, success); |
---|
564 | } |
---|
565 | return (demangled); |
---|
566 | } |
---|
567 | |
---|
568 | static char * |
---|
569 | mop_up (work, declp, success) |
---|
570 | struct work_stuff *work; |
---|
571 | string *declp; |
---|
572 | int success; |
---|
573 | { |
---|
574 | char *demangled = NULL; |
---|
575 | |
---|
576 | /* Discard the remembered types, if any. */ |
---|
577 | |
---|
578 | forget_types (work); |
---|
579 | if (work -> typevec != NULL) |
---|
580 | { |
---|
581 | free ((char *) work -> typevec); |
---|
582 | } |
---|
583 | |
---|
584 | /* If demangling was successful, ensure that the demangled string is null |
---|
585 | terminated and return it. Otherwise, free the demangling decl. */ |
---|
586 | |
---|
587 | if (!success) |
---|
588 | { |
---|
589 | string_delete (declp); |
---|
590 | } |
---|
591 | else |
---|
592 | { |
---|
593 | string_appendn (declp, "", 1); |
---|
594 | demangled = declp -> b; |
---|
595 | } |
---|
596 | return (demangled); |
---|
597 | } |
---|
598 | |
---|
599 | /* |
---|
600 | |
---|
601 | LOCAL FUNCTION |
---|
602 | |
---|
603 | demangle_signature -- demangle the signature part of a mangled name |
---|
604 | |
---|
605 | SYNOPSIS |
---|
606 | |
---|
607 | static int |
---|
608 | demangle_signature (struct work_stuff *work, const char **mangled, |
---|
609 | string *declp); |
---|
610 | |
---|
611 | DESCRIPTION |
---|
612 | |
---|
613 | Consume and demangle the signature portion of the mangled name. |
---|
614 | |
---|
615 | DECLP is the string where demangled output is being built. At |
---|
616 | entry it contains the demangled root name from the mangled name |
---|
617 | prefix. I.E. either a demangled operator name or the root function |
---|
618 | name. In some special cases, it may contain nothing. |
---|
619 | |
---|
620 | *MANGLED points to the current unconsumed location in the mangled |
---|
621 | name. As tokens are consumed and demangling is performed, the |
---|
622 | pointer is updated to continuously point at the next token to |
---|
623 | be consumed. |
---|
624 | |
---|
625 | Demangling GNU style mangled names is nasty because there is no |
---|
626 | explicit token that marks the start of the outermost function |
---|
627 | argument list. |
---|
628 | */ |
---|
629 | |
---|
630 | static int |
---|
631 | demangle_signature (work, mangled, declp) |
---|
632 | struct work_stuff *work; |
---|
633 | const char **mangled; |
---|
634 | string *declp; |
---|
635 | { |
---|
636 | int success = 1; |
---|
637 | int func_done = 0; |
---|
638 | int expect_func = 0; |
---|
639 | const char *oldmangled = NULL; |
---|
640 | string trawname; |
---|
641 | string tname; |
---|
642 | |
---|
643 | while (success && (**mangled != '\0')) |
---|
644 | { |
---|
645 | switch (**mangled) |
---|
646 | { |
---|
647 | case 'Q': |
---|
648 | oldmangled = *mangled; |
---|
649 | success = demangle_qualified (work, mangled, declp, 1, 0); |
---|
650 | if (success) |
---|
651 | { |
---|
652 | remember_type (work, oldmangled, *mangled - oldmangled); |
---|
653 | } |
---|
654 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
655 | { |
---|
656 | expect_func = 1; |
---|
657 | } |
---|
658 | oldmangled = NULL; |
---|
659 | break; |
---|
660 | |
---|
661 | case 'S': |
---|
662 | /* Static member function */ |
---|
663 | if (oldmangled == NULL) |
---|
664 | { |
---|
665 | oldmangled = *mangled; |
---|
666 | } |
---|
667 | (*mangled)++; |
---|
668 | work -> static_type = 1; |
---|
669 | break; |
---|
670 | |
---|
671 | case 'C': |
---|
672 | /* a const member function */ |
---|
673 | if (oldmangled == NULL) |
---|
674 | { |
---|
675 | oldmangled = *mangled; |
---|
676 | } |
---|
677 | (*mangled)++; |
---|
678 | work -> const_type = 1; |
---|
679 | break; |
---|
680 | |
---|
681 | case '0': case '1': case '2': case '3': case '4': |
---|
682 | case '5': case '6': case '7': case '8': case '9': |
---|
683 | if (oldmangled == NULL) |
---|
684 | { |
---|
685 | oldmangled = *mangled; |
---|
686 | } |
---|
687 | success = demangle_class (work, mangled, declp); |
---|
688 | if (success) |
---|
689 | { |
---|
690 | remember_type (work, oldmangled, *mangled - oldmangled); |
---|
691 | } |
---|
692 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
693 | { |
---|
694 | expect_func = 1; |
---|
695 | } |
---|
696 | oldmangled = NULL; |
---|
697 | break; |
---|
698 | |
---|
699 | case 'F': |
---|
700 | /* Function */ |
---|
701 | /* ARM style demangling includes a specific 'F' character after |
---|
702 | the class name. For GNU style, it is just implied. So we can |
---|
703 | safely just consume any 'F' at this point and be compatible |
---|
704 | with either style. */ |
---|
705 | |
---|
706 | oldmangled = NULL; |
---|
707 | func_done = 1; |
---|
708 | (*mangled)++; |
---|
709 | |
---|
710 | /* For lucid/ARM style we have to forget any types we might |
---|
711 | have remembered up to this point, since they were not argument |
---|
712 | types. GNU style considers all types seen as available for |
---|
713 | back references. See comment in demangle_args() */ |
---|
714 | |
---|
715 | if (LUCID_DEMANGLING || ARM_DEMANGLING) |
---|
716 | { |
---|
717 | forget_types (work); |
---|
718 | } |
---|
719 | success = demangle_args (work, mangled, declp); |
---|
720 | break; |
---|
721 | |
---|
722 | case 't': |
---|
723 | /* G++ Template */ |
---|
724 | string_init(&trawname); |
---|
725 | string_init(&tname); |
---|
726 | if (oldmangled == NULL) |
---|
727 | { |
---|
728 | oldmangled = *mangled; |
---|
729 | } |
---|
730 | success = demangle_template (work, mangled, &tname, &trawname); |
---|
731 | if (success) |
---|
732 | { |
---|
733 | remember_type (work, oldmangled, *mangled - oldmangled); |
---|
734 | } |
---|
735 | string_append(&tname, "::"); |
---|
736 | string_prepends(declp, &tname); |
---|
737 | if (work -> destructor & 1) |
---|
738 | { |
---|
739 | string_prepend (&trawname, "~"); |
---|
740 | string_appends (declp, &trawname); |
---|
741 | work->destructor -= 1; |
---|
742 | } |
---|
743 | if ((work->constructor & 1) || (work->destructor & 1)) |
---|
744 | { |
---|
745 | string_appends (declp, &trawname); |
---|
746 | work->constructor -= 1; |
---|
747 | } |
---|
748 | string_delete(&trawname); |
---|
749 | string_delete(&tname); |
---|
750 | oldmangled = NULL; |
---|
751 | expect_func = 1; |
---|
752 | break; |
---|
753 | |
---|
754 | case '_': |
---|
755 | /* At the outermost level, we cannot have a return type specified, |
---|
756 | so if we run into another '_' at this point we are dealing with |
---|
757 | a mangled name that is either bogus, or has been mangled by |
---|
758 | some algorithm we don't know how to deal with. So just |
---|
759 | reject the entire demangling. */ |
---|
760 | success = 0; |
---|
761 | break; |
---|
762 | |
---|
763 | default: |
---|
764 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
765 | { |
---|
766 | /* Assume we have stumbled onto the first outermost function |
---|
767 | argument token, and start processing args. */ |
---|
768 | func_done = 1; |
---|
769 | success = demangle_args (work, mangled, declp); |
---|
770 | } |
---|
771 | else |
---|
772 | { |
---|
773 | /* Non-GNU demanglers use a specific token to mark the start |
---|
774 | of the outermost function argument tokens. Typically 'F', |
---|
775 | for ARM-demangling, for example. So if we find something |
---|
776 | we are not prepared for, it must be an error. */ |
---|
777 | success = 0; |
---|
778 | } |
---|
779 | break; |
---|
780 | } |
---|
781 | /* |
---|
782 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
783 | */ |
---|
784 | { |
---|
785 | if (success && expect_func) |
---|
786 | { |
---|
787 | func_done = 1; |
---|
788 | success = demangle_args (work, mangled, declp); |
---|
789 | } |
---|
790 | } |
---|
791 | } |
---|
792 | if (success && !func_done) |
---|
793 | { |
---|
794 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
795 | { |
---|
796 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and |
---|
797 | bar__3fooi is 'foo::bar(int)'. We get here when we find the |
---|
798 | first case, and need to ensure that the '(void)' gets added to |
---|
799 | the current declp. Note that with ARM, the first case |
---|
800 | represents the name of a static data member 'foo::bar', |
---|
801 | which is in the current declp, so we leave it alone. */ |
---|
802 | success = demangle_args (work, mangled, declp); |
---|
803 | } |
---|
804 | } |
---|
805 | if (success && work -> static_type && PRINT_ARG_TYPES) |
---|
806 | { |
---|
807 | string_append (declp, " static"); |
---|
808 | } |
---|
809 | if (success && work -> const_type && PRINT_ARG_TYPES) |
---|
810 | { |
---|
811 | string_append (declp, " const"); |
---|
812 | } |
---|
813 | return (success); |
---|
814 | } |
---|
815 | |
---|
816 | #if 0 |
---|
817 | |
---|
818 | static int |
---|
819 | demangle_method_args (work, mangled, declp) |
---|
820 | struct work_stuff *work; |
---|
821 | const char **mangled; |
---|
822 | string *declp; |
---|
823 | { |
---|
824 | int success = 0; |
---|
825 | |
---|
826 | if (work -> static_type) |
---|
827 | { |
---|
828 | string_append (declp, *mangled + 1); |
---|
829 | *mangled += strlen (*mangled); |
---|
830 | success = 1; |
---|
831 | } |
---|
832 | else |
---|
833 | { |
---|
834 | success = demangle_args (work, mangled, declp); |
---|
835 | } |
---|
836 | return (success); |
---|
837 | } |
---|
838 | |
---|
839 | #endif |
---|
840 | |
---|
841 | static int |
---|
842 | demangle_template (work, mangled, tname, trawname) |
---|
843 | struct work_stuff *work; |
---|
844 | const char **mangled; |
---|
845 | string *tname; |
---|
846 | string *trawname; |
---|
847 | { |
---|
848 | int i; |
---|
849 | int is_pointer; |
---|
850 | int is_real; |
---|
851 | int is_integral; |
---|
852 | int is_char; |
---|
853 | int is_bool; |
---|
854 | int r; |
---|
855 | int need_comma = 0; |
---|
856 | int success = 0; |
---|
857 | int done; |
---|
858 | const char *old_p; |
---|
859 | const char *start; |
---|
860 | int symbol_len; |
---|
861 | string temp; |
---|
862 | |
---|
863 | (*mangled)++; |
---|
864 | start = *mangled; |
---|
865 | /* get template name */ |
---|
866 | if ((r = consume_count (mangled)) == 0 || strlen (*mangled) < r) |
---|
867 | { |
---|
868 | return (0); |
---|
869 | } |
---|
870 | if (trawname) |
---|
871 | string_appendn (trawname, *mangled, r); |
---|
872 | string_appendn (tname, *mangled, r); |
---|
873 | *mangled += r; |
---|
874 | string_append (tname, "<"); |
---|
875 | /* get size of template parameter list */ |
---|
876 | if (!get_count (mangled, &r)) |
---|
877 | { |
---|
878 | return (0); |
---|
879 | } |
---|
880 | for (i = 0; i < r; i++) |
---|
881 | { |
---|
882 | if (need_comma) |
---|
883 | { |
---|
884 | string_append (tname, ", "); |
---|
885 | } |
---|
886 | /* Z for type parameters */ |
---|
887 | if (**mangled == 'Z') |
---|
888 | { |
---|
889 | (*mangled)++; |
---|
890 | /* temp is initialized in do_type */ |
---|
891 | success = do_type (work, mangled, &temp); |
---|
892 | if (success) |
---|
893 | { |
---|
894 | string_appends (tname, &temp); |
---|
895 | } |
---|
896 | string_delete(&temp); |
---|
897 | if (!success) |
---|
898 | { |
---|
899 | break; |
---|
900 | } |
---|
901 | } |
---|
902 | else |
---|
903 | { |
---|
904 | /* otherwise, value parameter */ |
---|
905 | old_p = *mangled; |
---|
906 | is_pointer = 0; |
---|
907 | is_real = 0; |
---|
908 | is_integral = 0; |
---|
909 | is_char = 0; |
---|
910 | done = 0; |
---|
911 | /* temp is initialized in do_type */ |
---|
912 | success = do_type (work, mangled, &temp); |
---|
913 | /* |
---|
914 | if (success) |
---|
915 | { |
---|
916 | string_appends (tname, &temp); |
---|
917 | } |
---|
918 | */ |
---|
919 | string_delete(&temp); |
---|
920 | if (!success) |
---|
921 | { |
---|
922 | break; |
---|
923 | } |
---|
924 | /* |
---|
925 | string_append (tname, "="); |
---|
926 | */ |
---|
927 | while (*old_p && !done) |
---|
928 | { |
---|
929 | switch (*old_p) |
---|
930 | { |
---|
931 | case 'P': |
---|
932 | case 'p': |
---|
933 | case 'R': |
---|
934 | done = is_pointer = 1; |
---|
935 | break; |
---|
936 | case 'C': /* const */ |
---|
937 | case 'S': /* explicitly signed [char] */ |
---|
938 | case 'U': /* unsigned */ |
---|
939 | case 'V': /* volatile */ |
---|
940 | case 'F': /* function */ |
---|
941 | case 'M': /* member function */ |
---|
942 | case 'O': /* ??? */ |
---|
943 | old_p++; |
---|
944 | continue; |
---|
945 | case 'Q': /* qualified name */ |
---|
946 | done = is_integral = 1; |
---|
947 | break; |
---|
948 | case 'T': /* remembered type */ |
---|
949 | abort (); |
---|
950 | break; |
---|
951 | case 'v': /* void */ |
---|
952 | abort (); |
---|
953 | break; |
---|
954 | case 'x': /* long long */ |
---|
955 | case 'l': /* long */ |
---|
956 | case 'i': /* int */ |
---|
957 | case 's': /* short */ |
---|
958 | case 'w': /* wchar_t */ |
---|
959 | done = is_integral = 1; |
---|
960 | break; |
---|
961 | case 'b': /* bool */ |
---|
962 | done = is_bool = 1; |
---|
963 | break; |
---|
964 | case 'c': /* char */ |
---|
965 | done = is_char = 1; |
---|
966 | break; |
---|
967 | case 'r': /* long double */ |
---|
968 | case 'd': /* double */ |
---|
969 | case 'f': /* float */ |
---|
970 | done = is_real = 1; |
---|
971 | break; |
---|
972 | default: |
---|
973 | /* it's probably user defined type, let's assume |
---|
974 | it's integral, it seems hard to figure out |
---|
975 | what it really is */ |
---|
976 | done = is_integral = 1; |
---|
977 | } |
---|
978 | } |
---|
979 | if (is_integral) |
---|
980 | { |
---|
981 | if (**mangled == 'm') |
---|
982 | { |
---|
983 | string_appendn (tname, "-", 1); |
---|
984 | (*mangled)++; |
---|
985 | } |
---|
986 | while (isdigit (**mangled)) |
---|
987 | { |
---|
988 | string_appendn (tname, *mangled, 1); |
---|
989 | (*mangled)++; |
---|
990 | } |
---|
991 | } |
---|
992 | else if (is_char) |
---|
993 | { |
---|
994 | char tmp[2]; |
---|
995 | int val; |
---|
996 | if (**mangled == 'm') |
---|
997 | { |
---|
998 | string_appendn (tname, "-", 1); |
---|
999 | (*mangled)++; |
---|
1000 | } |
---|
1001 | string_appendn (tname, "'", 1); |
---|
1002 | val = consume_count(mangled); |
---|
1003 | if (val == 0) |
---|
1004 | { |
---|
1005 | success = 0; |
---|
1006 | break; |
---|
1007 | } |
---|
1008 | tmp[0] = (char)val; |
---|
1009 | tmp[1] = '\0'; |
---|
1010 | string_appendn (tname, &tmp[0], 1); |
---|
1011 | string_appendn (tname, "'", 1); |
---|
1012 | } |
---|
1013 | else if (is_bool) |
---|
1014 | { |
---|
1015 | int val = consume_count (mangled); |
---|
1016 | if (val == 0) |
---|
1017 | string_appendn (tname, "false", 5); |
---|
1018 | else if (val == 1) |
---|
1019 | string_appendn (tname, "true", 4); |
---|
1020 | else |
---|
1021 | success = 0; |
---|
1022 | } |
---|
1023 | else if (is_real) |
---|
1024 | { |
---|
1025 | if (**mangled == 'm') |
---|
1026 | { |
---|
1027 | string_appendn (tname, "-", 1); |
---|
1028 | (*mangled)++; |
---|
1029 | } |
---|
1030 | while (isdigit (**mangled)) |
---|
1031 | { |
---|
1032 | string_appendn (tname, *mangled, 1); |
---|
1033 | (*mangled)++; |
---|
1034 | } |
---|
1035 | if (**mangled == '.') /* fraction */ |
---|
1036 | { |
---|
1037 | string_appendn (tname, ".", 1); |
---|
1038 | (*mangled)++; |
---|
1039 | while (isdigit (**mangled)) |
---|
1040 | { |
---|
1041 | string_appendn (tname, *mangled, 1); |
---|
1042 | (*mangled)++; |
---|
1043 | } |
---|
1044 | } |
---|
1045 | if (**mangled == 'e') /* exponent */ |
---|
1046 | { |
---|
1047 | string_appendn (tname, "e", 1); |
---|
1048 | (*mangled)++; |
---|
1049 | while (isdigit (**mangled)) |
---|
1050 | { |
---|
1051 | string_appendn (tname, *mangled, 1); |
---|
1052 | (*mangled)++; |
---|
1053 | } |
---|
1054 | } |
---|
1055 | } |
---|
1056 | else if (is_pointer) |
---|
1057 | { |
---|
1058 | if (!get_count (mangled, &symbol_len)) |
---|
1059 | { |
---|
1060 | success = 0; |
---|
1061 | break; |
---|
1062 | } |
---|
1063 | string_appendn (tname, *mangled, symbol_len); |
---|
1064 | *mangled += symbol_len; |
---|
1065 | } |
---|
1066 | } |
---|
1067 | need_comma = 1; |
---|
1068 | } |
---|
1069 | if (tname->p[-1] == '>') |
---|
1070 | string_append (tname, " "); |
---|
1071 | string_append (tname, ">"); |
---|
1072 | |
---|
1073 | /* |
---|
1074 | if (work -> static_type) |
---|
1075 | { |
---|
1076 | string_append (declp, *mangled + 1); |
---|
1077 | *mangled += strlen (*mangled); |
---|
1078 | success = 1; |
---|
1079 | } |
---|
1080 | else |
---|
1081 | { |
---|
1082 | success = demangle_args (work, mangled, declp); |
---|
1083 | } |
---|
1084 | } |
---|
1085 | */ |
---|
1086 | return (success); |
---|
1087 | } |
---|
1088 | |
---|
1089 | static int |
---|
1090 | arm_pt (work, mangled, n, anchor, args) |
---|
1091 | struct work_stuff *work; |
---|
1092 | const char *mangled; |
---|
1093 | int n; |
---|
1094 | const char **anchor, **args; |
---|
1095 | { |
---|
1096 | /* ARM template? */ |
---|
1097 | if (ARM_DEMANGLING && (*anchor = mystrstr (mangled, "__pt__"))) |
---|
1098 | { |
---|
1099 | int len; |
---|
1100 | *args = *anchor + 6; |
---|
1101 | len = consume_count (args); |
---|
1102 | if (*args + len == mangled + n && **args == '_') |
---|
1103 | { |
---|
1104 | ++*args; |
---|
1105 | return 1; |
---|
1106 | } |
---|
1107 | } |
---|
1108 | return 0; |
---|
1109 | } |
---|
1110 | |
---|
1111 | static void |
---|
1112 | demangle_arm_pt (work, mangled, n, declp) |
---|
1113 | struct work_stuff *work; |
---|
1114 | const char **mangled; |
---|
1115 | int n; |
---|
1116 | string *declp; |
---|
1117 | { |
---|
1118 | const char *p; |
---|
1119 | const char *args; |
---|
1120 | const char *e = *mangled + n; |
---|
1121 | |
---|
1122 | /* ARM template? */ |
---|
1123 | if (arm_pt (work, *mangled, n, &p, &args)) |
---|
1124 | { |
---|
1125 | string arg; |
---|
1126 | string_init (&arg); |
---|
1127 | string_appendn (declp, *mangled, p - *mangled); |
---|
1128 | string_append (declp, "<"); |
---|
1129 | /* should do error checking here */ |
---|
1130 | while (args < e) { |
---|
1131 | string_clear (&arg); |
---|
1132 | do_type (work, &args, &arg); |
---|
1133 | string_appends (declp, &arg); |
---|
1134 | string_append (declp, ","); |
---|
1135 | } |
---|
1136 | string_delete (&arg); |
---|
1137 | --declp->p; |
---|
1138 | string_append (declp, ">"); |
---|
1139 | } |
---|
1140 | else |
---|
1141 | { |
---|
1142 | string_appendn (declp, *mangled, n); |
---|
1143 | } |
---|
1144 | *mangled += n; |
---|
1145 | } |
---|
1146 | |
---|
1147 | static int |
---|
1148 | demangle_class_name (work, mangled, declp) |
---|
1149 | struct work_stuff *work; |
---|
1150 | const char **mangled; |
---|
1151 | string *declp; |
---|
1152 | { |
---|
1153 | int n; |
---|
1154 | int success = 0; |
---|
1155 | |
---|
1156 | n = consume_count (mangled); |
---|
1157 | if (strlen (*mangled) >= n) |
---|
1158 | { |
---|
1159 | demangle_arm_pt (work, mangled, n, declp); |
---|
1160 | success = 1; |
---|
1161 | } |
---|
1162 | |
---|
1163 | return (success); |
---|
1164 | } |
---|
1165 | |
---|
1166 | /* |
---|
1167 | |
---|
1168 | LOCAL FUNCTION |
---|
1169 | |
---|
1170 | demangle_class -- demangle a mangled class sequence |
---|
1171 | |
---|
1172 | SYNOPSIS |
---|
1173 | |
---|
1174 | static int |
---|
1175 | demangle_class (struct work_stuff *work, const char **mangled, |
---|
1176 | strint *declp) |
---|
1177 | |
---|
1178 | DESCRIPTION |
---|
1179 | |
---|
1180 | DECLP points to the buffer into which demangling is being done. |
---|
1181 | |
---|
1182 | *MANGLED points to the current token to be demangled. On input, |
---|
1183 | it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) |
---|
1184 | On exit, it points to the next token after the mangled class on |
---|
1185 | success, or the first unconsumed token on failure. |
---|
1186 | |
---|
1187 | If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then |
---|
1188 | we are demangling a constructor or destructor. In this case |
---|
1189 | we prepend "class::class" or "class::~class" to DECLP. |
---|
1190 | |
---|
1191 | Otherwise, we prepend "class::" to the current DECLP. |
---|
1192 | |
---|
1193 | Reset the constructor/destructor flags once they have been |
---|
1194 | "consumed". This allows demangle_class to be called later during |
---|
1195 | the same demangling, to do normal class demangling. |
---|
1196 | |
---|
1197 | Returns 1 if demangling is successful, 0 otherwise. |
---|
1198 | |
---|
1199 | */ |
---|
1200 | |
---|
1201 | static int |
---|
1202 | demangle_class (work, mangled, declp) |
---|
1203 | struct work_stuff *work; |
---|
1204 | const char **mangled; |
---|
1205 | string *declp; |
---|
1206 | { |
---|
1207 | int success = 0; |
---|
1208 | string class_name; |
---|
1209 | |
---|
1210 | string_init (&class_name); |
---|
1211 | if (demangle_class_name (work, mangled, &class_name)) |
---|
1212 | { |
---|
1213 | if ((work->constructor & 1) || (work->destructor & 1)) |
---|
1214 | { |
---|
1215 | string_prepends (declp, &class_name); |
---|
1216 | if (work -> destructor & 1) |
---|
1217 | { |
---|
1218 | string_prepend (declp, "~"); |
---|
1219 | work -> destructor -= 1; |
---|
1220 | } |
---|
1221 | else |
---|
1222 | { |
---|
1223 | work -> constructor -= 1; |
---|
1224 | } |
---|
1225 | } |
---|
1226 | string_prepend (declp, "::"); |
---|
1227 | string_prepends (declp, &class_name); |
---|
1228 | success = 1; |
---|
1229 | } |
---|
1230 | string_delete (&class_name); |
---|
1231 | return (success); |
---|
1232 | } |
---|
1233 | |
---|
1234 | /* |
---|
1235 | |
---|
1236 | LOCAL FUNCTION |
---|
1237 | |
---|
1238 | demangle_prefix -- consume the mangled name prefix and find signature |
---|
1239 | |
---|
1240 | SYNOPSIS |
---|
1241 | |
---|
1242 | static int |
---|
1243 | demangle_prefix (struct work_stuff *work, const char **mangled, |
---|
1244 | string *declp); |
---|
1245 | |
---|
1246 | DESCRIPTION |
---|
1247 | |
---|
1248 | Consume and demangle the prefix of the mangled name. |
---|
1249 | |
---|
1250 | DECLP points to the string buffer into which demangled output is |
---|
1251 | placed. On entry, the buffer is empty. On exit it contains |
---|
1252 | the root function name, the demangled operator name, or in some |
---|
1253 | special cases either nothing or the completely demangled result. |
---|
1254 | |
---|
1255 | MANGLED points to the current pointer into the mangled name. As each |
---|
1256 | token of the mangled name is consumed, it is updated. Upon entry |
---|
1257 | the current mangled name pointer points to the first character of |
---|
1258 | the mangled name. Upon exit, it should point to the first character |
---|
1259 | of the signature if demangling was successful, or to the first |
---|
1260 | unconsumed character if demangling of the prefix was unsuccessful. |
---|
1261 | |
---|
1262 | Returns 1 on success, 0 otherwise. |
---|
1263 | */ |
---|
1264 | |
---|
1265 | static int |
---|
1266 | demangle_prefix (work, mangled, declp) |
---|
1267 | struct work_stuff *work; |
---|
1268 | const char **mangled; |
---|
1269 | string *declp; |
---|
1270 | { |
---|
1271 | int success = 1; |
---|
1272 | const char *scan; |
---|
1273 | int i; |
---|
1274 | |
---|
1275 | if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0) |
---|
1276 | { |
---|
1277 | char *marker = strchr (cplus_markers, (*mangled)[8]); |
---|
1278 | if (marker != NULL && *marker == (*mangled)[10]) |
---|
1279 | { |
---|
1280 | if ((*mangled)[9] == 'D') |
---|
1281 | { |
---|
1282 | /* it's a GNU global destructor to be executed at program exit */ |
---|
1283 | (*mangled) += 11; |
---|
1284 | work->destructor = 2; |
---|
1285 | if (gnu_special (work, mangled, declp)) |
---|
1286 | return success; |
---|
1287 | } |
---|
1288 | else if ((*mangled)[9] == 'I') |
---|
1289 | { |
---|
1290 | /* it's a GNU global constructor to be executed at program init */ |
---|
1291 | (*mangled) += 11; |
---|
1292 | work->constructor = 2; |
---|
1293 | if (gnu_special (work, mangled, declp)) |
---|
1294 | return success; |
---|
1295 | } |
---|
1296 | } |
---|
1297 | } |
---|
1298 | else if (ARM_DEMANGLING && strncmp(*mangled, "__std__", 7) == 0) |
---|
1299 | { |
---|
1300 | /* it's a ARM global destructor to be executed at program exit */ |
---|
1301 | (*mangled) += 7; |
---|
1302 | work->destructor = 2; |
---|
1303 | } |
---|
1304 | else if (ARM_DEMANGLING && strncmp(*mangled, "__sti__", 7) == 0) |
---|
1305 | { |
---|
1306 | /* it's a ARM global constructor to be executed at program initial */ |
---|
1307 | (*mangled) += 7; |
---|
1308 | work->constructor = 2; |
---|
1309 | } |
---|
1310 | |
---|
1311 | /* This block of code is a reduction in strength time optimization |
---|
1312 | of: |
---|
1313 | scan = mystrstr (*mangled, "__"); */ |
---|
1314 | |
---|
1315 | { |
---|
1316 | scan = *mangled; |
---|
1317 | |
---|
1318 | do { |
---|
1319 | scan = strchr (scan, '_'); |
---|
1320 | } while (scan != NULL && *++scan != '_'); |
---|
1321 | |
---|
1322 | if (scan != NULL) --scan; |
---|
1323 | } |
---|
1324 | |
---|
1325 | if (scan != NULL) |
---|
1326 | { |
---|
1327 | /* We found a sequence of two or more '_', ensure that we start at |
---|
1328 | the last pair in the sequence. */ |
---|
1329 | i = strspn (scan, "_"); |
---|
1330 | if (i > 2) |
---|
1331 | { |
---|
1332 | scan += (i - 2); |
---|
1333 | } |
---|
1334 | } |
---|
1335 | |
---|
1336 | if (scan == NULL) |
---|
1337 | { |
---|
1338 | success = 0; |
---|
1339 | } |
---|
1340 | else if (work -> static_type) |
---|
1341 | { |
---|
1342 | if (!isdigit (scan[0]) && (scan[0] != 't')) |
---|
1343 | { |
---|
1344 | success = 0; |
---|
1345 | } |
---|
1346 | } |
---|
1347 | else if ((scan == *mangled) && |
---|
1348 | (isdigit (scan[2]) || (scan[2] == 'Q') || (scan[2] == 't'))) |
---|
1349 | { |
---|
1350 | /* The ARM says nothing about the mangling of local variables. |
---|
1351 | But cfront mangles local variables by prepending __<nesting_level> |
---|
1352 | to them. As an extension to ARM demangling we handle this case. */ |
---|
1353 | if ((LUCID_DEMANGLING || ARM_DEMANGLING) && isdigit (scan[2])) |
---|
1354 | { |
---|
1355 | *mangled = scan + 2; |
---|
1356 | consume_count (mangled); |
---|
1357 | string_append (declp, *mangled); |
---|
1358 | *mangled += strlen (*mangled); |
---|
1359 | success = 1; |
---|
1360 | } |
---|
1361 | else |
---|
1362 | { |
---|
1363 | /* A GNU style constructor starts with __[0-9Qt]. But cfront uses |
---|
1364 | names like __Q2_3foo3bar for nested type names. So don't accept |
---|
1365 | this style of constructor for cfront demangling. */ |
---|
1366 | if (!(LUCID_DEMANGLING || ARM_DEMANGLING)) |
---|
1367 | work -> constructor += 1; |
---|
1368 | *mangled = scan + 2; |
---|
1369 | } |
---|
1370 | } |
---|
1371 | else if ((scan == *mangled) && !isdigit (scan[2]) && (scan[2] != 't')) |
---|
1372 | { |
---|
1373 | /* Mangled name starts with "__". Skip over any leading '_' characters, |
---|
1374 | then find the next "__" that separates the prefix from the signature. |
---|
1375 | */ |
---|
1376 | if (!(ARM_DEMANGLING || LUCID_DEMANGLING) |
---|
1377 | || (arm_special (work, mangled, declp) == 0)) |
---|
1378 | { |
---|
1379 | while (*scan == '_') |
---|
1380 | { |
---|
1381 | scan++; |
---|
1382 | } |
---|
1383 | if ((scan = mystrstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) |
---|
1384 | { |
---|
1385 | /* No separator (I.E. "__not_mangled"), or empty signature |
---|
1386 | (I.E. "__not_mangled_either__") */ |
---|
1387 | success = 0; |
---|
1388 | } |
---|
1389 | else |
---|
1390 | { |
---|
1391 | demangle_function_name (work, mangled, declp, scan); |
---|
1392 | } |
---|
1393 | } |
---|
1394 | } |
---|
1395 | else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't') |
---|
1396 | { |
---|
1397 | /* Cfront-style parameterized type. Handled later as a signature. */ |
---|
1398 | success = 1; |
---|
1399 | |
---|
1400 | /* ARM template? */ |
---|
1401 | demangle_arm_pt (work, mangled, strlen (*mangled), declp); |
---|
1402 | } |
---|
1403 | else if (*(scan + 2) != '\0') |
---|
1404 | { |
---|
1405 | /* Mangled name does not start with "__" but does have one somewhere |
---|
1406 | in there with non empty stuff after it. Looks like a global |
---|
1407 | function name. */ |
---|
1408 | demangle_function_name (work, mangled, declp, scan); |
---|
1409 | } |
---|
1410 | else |
---|
1411 | { |
---|
1412 | /* Doesn't look like a mangled name */ |
---|
1413 | success = 0; |
---|
1414 | } |
---|
1415 | |
---|
1416 | if (!success && (work->constructor == 2 || work->destructor == 2)) |
---|
1417 | { |
---|
1418 | string_append (declp, *mangled); |
---|
1419 | *mangled += strlen (*mangled); |
---|
1420 | success = 1; |
---|
1421 | } |
---|
1422 | return (success); |
---|
1423 | } |
---|
1424 | |
---|
1425 | /* |
---|
1426 | |
---|
1427 | LOCAL FUNCTION |
---|
1428 | |
---|
1429 | gnu_special -- special handling of gnu mangled strings |
---|
1430 | |
---|
1431 | SYNOPSIS |
---|
1432 | |
---|
1433 | static int |
---|
1434 | gnu_special (struct work_stuff *work, const char **mangled, |
---|
1435 | string *declp); |
---|
1436 | |
---|
1437 | |
---|
1438 | DESCRIPTION |
---|
1439 | |
---|
1440 | Process some special GNU style mangling forms that don't fit |
---|
1441 | the normal pattern. For example: |
---|
1442 | |
---|
1443 | _$_3foo (destructor for class foo) |
---|
1444 | _vt$foo (foo virtual table) |
---|
1445 | _vt$foo$bar (foo::bar virtual table) |
---|
1446 | __vt_foo (foo virtual table, new style with thunks) |
---|
1447 | _3foo$varname (static data member) |
---|
1448 | _Q22rs2tu$vw (static data member) |
---|
1449 | __t6vector1Zii (constructor with template) |
---|
1450 | __thunk_4__$_7ostream (virtual function thunk) |
---|
1451 | */ |
---|
1452 | |
---|
1453 | static int |
---|
1454 | gnu_special (work, mangled, declp) |
---|
1455 | struct work_stuff *work; |
---|
1456 | const char **mangled; |
---|
1457 | string *declp; |
---|
1458 | { |
---|
1459 | int n; |
---|
1460 | int success = 1; |
---|
1461 | const char *p; |
---|
1462 | |
---|
1463 | if ((*mangled)[0] == '_' |
---|
1464 | && strchr (cplus_markers, (*mangled)[1]) != NULL |
---|
1465 | && (*mangled)[2] == '_') |
---|
1466 | { |
---|
1467 | /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ |
---|
1468 | (*mangled) += 3; |
---|
1469 | work -> destructor += 1; |
---|
1470 | } |
---|
1471 | else if ((*mangled)[0] == '_' |
---|
1472 | && (((*mangled)[1] == '_' |
---|
1473 | && (*mangled)[2] == 'v' |
---|
1474 | && (*mangled)[3] == 't' |
---|
1475 | && (*mangled)[4] == '_') |
---|
1476 | || ((*mangled)[1] == 'v' |
---|
1477 | && (*mangled)[2] == 't' |
---|
1478 | && strchr (cplus_markers, (*mangled)[3]) != NULL))) |
---|
1479 | { |
---|
1480 | /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" |
---|
1481 | and create the decl. Note that we consume the entire mangled |
---|
1482 | input string, which means that demangle_signature has no work |
---|
1483 | to do. */ |
---|
1484 | if ((*mangled)[2] == 'v') |
---|
1485 | (*mangled) += 5; /* New style, with thunks: "__vt_" */ |
---|
1486 | else |
---|
1487 | (*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */ |
---|
1488 | while (**mangled != '\0') |
---|
1489 | { |
---|
1490 | p = strpbrk (*mangled, cplus_markers); |
---|
1491 | switch (**mangled) |
---|
1492 | { |
---|
1493 | case 'Q': |
---|
1494 | success = demangle_qualified (work, mangled, declp, 0, 1); |
---|
1495 | break; |
---|
1496 | case 't': |
---|
1497 | success = demangle_template (work, mangled, declp, 0); |
---|
1498 | break; |
---|
1499 | default: |
---|
1500 | if (isdigit(*mangled[0])) |
---|
1501 | { |
---|
1502 | n = consume_count(mangled); |
---|
1503 | } |
---|
1504 | else |
---|
1505 | { |
---|
1506 | n = strcspn (*mangled, cplus_markers); |
---|
1507 | } |
---|
1508 | string_appendn (declp, *mangled, n); |
---|
1509 | (*mangled) += n; |
---|
1510 | } |
---|
1511 | |
---|
1512 | if (success && ((p == NULL) || (p == *mangled))) |
---|
1513 | { |
---|
1514 | if (p != NULL) |
---|
1515 | { |
---|
1516 | string_append (declp, "::"); |
---|
1517 | (*mangled)++; |
---|
1518 | } |
---|
1519 | } |
---|
1520 | else |
---|
1521 | { |
---|
1522 | success = 0; |
---|
1523 | break; |
---|
1524 | } |
---|
1525 | } |
---|
1526 | if (success) |
---|
1527 | string_append (declp, " virtual table"); |
---|
1528 | } |
---|
1529 | else if ((*mangled)[0] == '_' |
---|
1530 | && (strchr("0123456789Qt", (*mangled)[1]) != NULL) |
---|
1531 | && (p = strpbrk (*mangled, cplus_markers)) != NULL) |
---|
1532 | { |
---|
1533 | /* static data member, "_3foo$varname" for example */ |
---|
1534 | (*mangled)++; |
---|
1535 | switch (**mangled) |
---|
1536 | { |
---|
1537 | case 'Q': |
---|
1538 | success = demangle_qualified (work, mangled, declp, 0, 1); |
---|
1539 | break; |
---|
1540 | case 't': |
---|
1541 | success = demangle_template (work, mangled, declp, 0); |
---|
1542 | break; |
---|
1543 | default: |
---|
1544 | n = consume_count (mangled); |
---|
1545 | string_appendn (declp, *mangled, n); |
---|
1546 | (*mangled) += n; |
---|
1547 | } |
---|
1548 | if (success && (p == *mangled)) |
---|
1549 | { |
---|
1550 | /* Consumed everything up to the cplus_marker, append the |
---|
1551 | variable name. */ |
---|
1552 | (*mangled)++; |
---|
1553 | string_append (declp, "::"); |
---|
1554 | n = strlen (*mangled); |
---|
1555 | string_appendn (declp, *mangled, n); |
---|
1556 | (*mangled) += n; |
---|
1557 | } |
---|
1558 | else |
---|
1559 | { |
---|
1560 | success = 0; |
---|
1561 | } |
---|
1562 | } |
---|
1563 | else if (strncmp (*mangled, "__thunk_", 8) == 0) |
---|
1564 | { |
---|
1565 | int delta = ((*mangled) += 8, consume_count (mangled)); |
---|
1566 | char *method = cplus_demangle (++*mangled, work->options); |
---|
1567 | if (method) |
---|
1568 | { |
---|
1569 | char buf[50]; |
---|
1570 | sprintf (buf, "virtual function thunk (delta:%d) for ", -delta); |
---|
1571 | string_append (declp, buf); |
---|
1572 | string_append (declp, method); |
---|
1573 | free (method); |
---|
1574 | n = strlen (*mangled); |
---|
1575 | (*mangled) += n; |
---|
1576 | } |
---|
1577 | else |
---|
1578 | { |
---|
1579 | success = 0; |
---|
1580 | } |
---|
1581 | } |
---|
1582 | else |
---|
1583 | { |
---|
1584 | success = 0; |
---|
1585 | } |
---|
1586 | return (success); |
---|
1587 | } |
---|
1588 | |
---|
1589 | /* |
---|
1590 | |
---|
1591 | LOCAL FUNCTION |
---|
1592 | |
---|
1593 | arm_special -- special handling of ARM/lucid mangled strings |
---|
1594 | |
---|
1595 | SYNOPSIS |
---|
1596 | |
---|
1597 | static int |
---|
1598 | arm_special (struct work_stuff *work, const char **mangled, |
---|
1599 | string *declp); |
---|
1600 | |
---|
1601 | |
---|
1602 | DESCRIPTION |
---|
1603 | |
---|
1604 | Process some special ARM style mangling forms that don't fit |
---|
1605 | the normal pattern. For example: |
---|
1606 | |
---|
1607 | __vtbl__3foo (foo virtual table) |
---|
1608 | __vtbl__3foo__3bar (bar::foo virtual table) |
---|
1609 | |
---|
1610 | */ |
---|
1611 | |
---|
1612 | static int |
---|
1613 | arm_special (work, mangled, declp) |
---|
1614 | struct work_stuff *work; |
---|
1615 | const char **mangled; |
---|
1616 | string *declp; |
---|
1617 | { |
---|
1618 | int n; |
---|
1619 | int success = 1; |
---|
1620 | const char *scan; |
---|
1621 | |
---|
1622 | if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) |
---|
1623 | { |
---|
1624 | /* Found a ARM style virtual table, get past ARM_VTABLE_STRING |
---|
1625 | and create the decl. Note that we consume the entire mangled |
---|
1626 | input string, which means that demangle_signature has no work |
---|
1627 | to do. */ |
---|
1628 | scan = *mangled + ARM_VTABLE_STRLEN; |
---|
1629 | while (*scan != '\0') /* first check it can be demangled */ |
---|
1630 | { |
---|
1631 | n = consume_count (&scan); |
---|
1632 | if (n==0) |
---|
1633 | { |
---|
1634 | return (0); /* no good */ |
---|
1635 | } |
---|
1636 | scan += n; |
---|
1637 | if (scan[0] == '_' && scan[1] == '_') |
---|
1638 | { |
---|
1639 | scan += 2; |
---|
1640 | } |
---|
1641 | } |
---|
1642 | (*mangled) += ARM_VTABLE_STRLEN; |
---|
1643 | while (**mangled != '\0') |
---|
1644 | { |
---|
1645 | n = consume_count (mangled); |
---|
1646 | string_prependn (declp, *mangled, n); |
---|
1647 | (*mangled) += n; |
---|
1648 | if ((*mangled)[0] == '_' && (*mangled)[1] == '_') |
---|
1649 | { |
---|
1650 | string_prepend (declp, "::"); |
---|
1651 | (*mangled) += 2; |
---|
1652 | } |
---|
1653 | } |
---|
1654 | string_append (declp, " virtual table"); |
---|
1655 | } |
---|
1656 | else |
---|
1657 | { |
---|
1658 | success = 0; |
---|
1659 | } |
---|
1660 | return (success); |
---|
1661 | } |
---|
1662 | |
---|
1663 | /* |
---|
1664 | |
---|
1665 | LOCAL FUNCTION |
---|
1666 | |
---|
1667 | demangle_qualified -- demangle 'Q' qualified name strings |
---|
1668 | |
---|
1669 | SYNOPSIS |
---|
1670 | |
---|
1671 | static int |
---|
1672 | demangle_qualified (struct work_stuff *, const char *mangled, |
---|
1673 | string *result, int isfuncname, int append); |
---|
1674 | |
---|
1675 | DESCRIPTION |
---|
1676 | |
---|
1677 | Demangle a qualified name, such as "Q25Outer5Inner" which is |
---|
1678 | the mangled form of "Outer::Inner". The demangled output is |
---|
1679 | prepended or appended to the result string according to the |
---|
1680 | state of the append flag. |
---|
1681 | |
---|
1682 | If isfuncname is nonzero, then the qualified name we are building |
---|
1683 | is going to be used as a member function name, so if it is a |
---|
1684 | constructor or destructor function, append an appropriate |
---|
1685 | constructor or destructor name. I.E. for the above example, |
---|
1686 | the result for use as a constructor is "Outer::Inner::Inner" |
---|
1687 | and the result for use as a destructor is "Outer::Inner::~Inner". |
---|
1688 | |
---|
1689 | BUGS |
---|
1690 | |
---|
1691 | Numeric conversion is ASCII dependent (FIXME). |
---|
1692 | |
---|
1693 | */ |
---|
1694 | |
---|
1695 | static int |
---|
1696 | demangle_qualified (work, mangled, result, isfuncname, append) |
---|
1697 | struct work_stuff *work; |
---|
1698 | const char **mangled; |
---|
1699 | string *result; |
---|
1700 | int isfuncname; |
---|
1701 | int append; |
---|
1702 | { |
---|
1703 | int qualifiers; |
---|
1704 | int namelength; |
---|
1705 | int success = 1; |
---|
1706 | const char *p; |
---|
1707 | char num[2]; |
---|
1708 | string temp; |
---|
1709 | |
---|
1710 | string_init (&temp); |
---|
1711 | switch ((*mangled)[1]) |
---|
1712 | { |
---|
1713 | case '_': |
---|
1714 | /* GNU mangled name with more than 9 classes. The count is preceded |
---|
1715 | by an underscore (to distinguish it from the <= 9 case) and followed |
---|
1716 | by an underscore. */ |
---|
1717 | p = *mangled + 2; |
---|
1718 | qualifiers = atoi (p); |
---|
1719 | if (!isdigit (*p) || *p == '0') |
---|
1720 | success = 0; |
---|
1721 | |
---|
1722 | /* Skip the digits. */ |
---|
1723 | while (isdigit (*p)) |
---|
1724 | ++p; |
---|
1725 | |
---|
1726 | if (*p != '_') |
---|
1727 | success = 0; |
---|
1728 | |
---|
1729 | *mangled = p + 1; |
---|
1730 | break; |
---|
1731 | |
---|
1732 | case '1': |
---|
1733 | case '2': |
---|
1734 | case '3': |
---|
1735 | case '4': |
---|
1736 | case '5': |
---|
1737 | case '6': |
---|
1738 | case '7': |
---|
1739 | case '8': |
---|
1740 | case '9': |
---|
1741 | /* The count is in a single digit. */ |
---|
1742 | num[0] = (*mangled)[1]; |
---|
1743 | num[1] = '\0'; |
---|
1744 | qualifiers = atoi (num); |
---|
1745 | |
---|
1746 | /* If there is an underscore after the digit, skip it. This is |
---|
1747 | said to be for ARM-qualified names, but the ARM makes no |
---|
1748 | mention of such an underscore. Perhaps cfront uses one. */ |
---|
1749 | if ((*mangled)[2] == '_') |
---|
1750 | { |
---|
1751 | (*mangled)++; |
---|
1752 | } |
---|
1753 | (*mangled) += 2; |
---|
1754 | break; |
---|
1755 | |
---|
1756 | case '0': |
---|
1757 | default: |
---|
1758 | success = 0; |
---|
1759 | } |
---|
1760 | |
---|
1761 | if (!success) |
---|
1762 | return success; |
---|
1763 | |
---|
1764 | /* Pick off the names and collect them in the temp buffer in the order |
---|
1765 | in which they are found, separated by '::'. */ |
---|
1766 | |
---|
1767 | while (qualifiers-- > 0) |
---|
1768 | { |
---|
1769 | if (*mangled[0] == '_') |
---|
1770 | *mangled = *mangled + 1; |
---|
1771 | if (*mangled[0] == 't') |
---|
1772 | { |
---|
1773 | success = demangle_template(work, mangled, &temp, 0); |
---|
1774 | if (!success) break; |
---|
1775 | } |
---|
1776 | else |
---|
1777 | { |
---|
1778 | namelength = consume_count (mangled); |
---|
1779 | if (strlen (*mangled) < namelength) |
---|
1780 | { |
---|
1781 | /* Simple sanity check failed */ |
---|
1782 | success = 0; |
---|
1783 | break; |
---|
1784 | } |
---|
1785 | string_appendn (&temp, *mangled, namelength); |
---|
1786 | *mangled += namelength; |
---|
1787 | } |
---|
1788 | if (qualifiers > 0) |
---|
1789 | { |
---|
1790 | string_appendn (&temp, "::", 2); |
---|
1791 | } |
---|
1792 | } |
---|
1793 | |
---|
1794 | /* If we are using the result as a function name, we need to append |
---|
1795 | the appropriate '::' separated constructor or destructor name. |
---|
1796 | We do this here because this is the most convenient place, where |
---|
1797 | we already have a pointer to the name and the length of the name. */ |
---|
1798 | |
---|
1799 | if (isfuncname && (work->constructor & 1 || work->destructor & 1)) |
---|
1800 | { |
---|
1801 | string_appendn (&temp, "::", 2); |
---|
1802 | if (work -> destructor & 1) |
---|
1803 | { |
---|
1804 | string_append (&temp, "~"); |
---|
1805 | } |
---|
1806 | string_appendn (&temp, (*mangled) - namelength, namelength); |
---|
1807 | } |
---|
1808 | |
---|
1809 | /* Now either prepend the temp buffer to the result, or append it, |
---|
1810 | depending upon the state of the append flag. */ |
---|
1811 | |
---|
1812 | if (append) |
---|
1813 | { |
---|
1814 | string_appends (result, &temp); |
---|
1815 | } |
---|
1816 | else |
---|
1817 | { |
---|
1818 | if (!STRING_EMPTY (result)) |
---|
1819 | { |
---|
1820 | string_appendn (&temp, "::", 2); |
---|
1821 | } |
---|
1822 | string_prepends (result, &temp); |
---|
1823 | } |
---|
1824 | |
---|
1825 | string_delete (&temp); |
---|
1826 | return (success); |
---|
1827 | } |
---|
1828 | |
---|
1829 | /* |
---|
1830 | |
---|
1831 | LOCAL FUNCTION |
---|
1832 | |
---|
1833 | get_count -- convert an ascii count to integer, consuming tokens |
---|
1834 | |
---|
1835 | SYNOPSIS |
---|
1836 | |
---|
1837 | static int |
---|
1838 | get_count (const char **type, int *count) |
---|
1839 | |
---|
1840 | DESCRIPTION |
---|
1841 | |
---|
1842 | Return 0 if no conversion is performed, 1 if a string is converted. |
---|
1843 | */ |
---|
1844 | |
---|
1845 | static int |
---|
1846 | get_count (type, count) |
---|
1847 | const char **type; |
---|
1848 | int *count; |
---|
1849 | { |
---|
1850 | const char *p; |
---|
1851 | int n; |
---|
1852 | |
---|
1853 | if (!isdigit (**type)) |
---|
1854 | { |
---|
1855 | return (0); |
---|
1856 | } |
---|
1857 | else |
---|
1858 | { |
---|
1859 | *count = **type - '0'; |
---|
1860 | (*type)++; |
---|
1861 | if (isdigit (**type)) |
---|
1862 | { |
---|
1863 | p = *type; |
---|
1864 | n = *count; |
---|
1865 | do |
---|
1866 | { |
---|
1867 | n *= 10; |
---|
1868 | n += *p - '0'; |
---|
1869 | p++; |
---|
1870 | } |
---|
1871 | while (isdigit (*p)); |
---|
1872 | if (*p == '_') |
---|
1873 | { |
---|
1874 | *type = p + 1; |
---|
1875 | *count = n; |
---|
1876 | } |
---|
1877 | } |
---|
1878 | } |
---|
1879 | return (1); |
---|
1880 | } |
---|
1881 | |
---|
1882 | /* result will be initialised here; it will be freed on failure */ |
---|
1883 | |
---|
1884 | static int |
---|
1885 | do_type (work, mangled, result) |
---|
1886 | struct work_stuff *work; |
---|
1887 | const char **mangled; |
---|
1888 | string *result; |
---|
1889 | { |
---|
1890 | int n; |
---|
1891 | int done; |
---|
1892 | int success; |
---|
1893 | string decl; |
---|
1894 | const char *remembered_type; |
---|
1895 | int constp; |
---|
1896 | int volatilep; |
---|
1897 | |
---|
1898 | string_init (&decl); |
---|
1899 | string_init (result); |
---|
1900 | |
---|
1901 | done = 0; |
---|
1902 | success = 1; |
---|
1903 | while (success && !done) |
---|
1904 | { |
---|
1905 | int member; |
---|
1906 | switch (**mangled) |
---|
1907 | { |
---|
1908 | |
---|
1909 | /* A pointer type */ |
---|
1910 | case 'P': |
---|
1911 | case 'p': |
---|
1912 | (*mangled)++; |
---|
1913 | string_prepend (&decl, "*"); |
---|
1914 | break; |
---|
1915 | |
---|
1916 | /* A reference type */ |
---|
1917 | case 'R': |
---|
1918 | (*mangled)++; |
---|
1919 | string_prepend (&decl, "&"); |
---|
1920 | break; |
---|
1921 | |
---|
1922 | /* An array */ |
---|
1923 | case 'A': |
---|
1924 | { |
---|
1925 | const char *p = ++(*mangled); |
---|
1926 | |
---|
1927 | string_prepend (&decl, "("); |
---|
1928 | string_append (&decl, ")["); |
---|
1929 | /* Copy anything up until the next underscore (the size of the |
---|
1930 | array). */ |
---|
1931 | while (**mangled && **mangled != '_') |
---|
1932 | ++(*mangled); |
---|
1933 | if (**mangled == '_') |
---|
1934 | { |
---|
1935 | string_appendn (&decl, p, *mangled - p); |
---|
1936 | string_append (&decl, "]"); |
---|
1937 | *mangled += 1; |
---|
1938 | } |
---|
1939 | else |
---|
1940 | success = 0; |
---|
1941 | break; |
---|
1942 | } |
---|
1943 | |
---|
1944 | /* A back reference to a previously seen type */ |
---|
1945 | case 'T': |
---|
1946 | (*mangled)++; |
---|
1947 | if (!get_count (mangled, &n) || n >= work -> ntypes) |
---|
1948 | { |
---|
1949 | success = 0; |
---|
1950 | } |
---|
1951 | else |
---|
1952 | { |
---|
1953 | remembered_type = work -> typevec[n]; |
---|
1954 | mangled = &remembered_type; |
---|
1955 | } |
---|
1956 | break; |
---|
1957 | |
---|
1958 | /* A function */ |
---|
1959 | case 'F': |
---|
1960 | (*mangled)++; |
---|
1961 | if (!STRING_EMPTY (&decl) && decl.b[0] == '*') |
---|
1962 | { |
---|
1963 | string_prepend (&decl, "("); |
---|
1964 | string_append (&decl, ")"); |
---|
1965 | } |
---|
1966 | /* After picking off the function args, we expect to either find the |
---|
1967 | function return type (preceded by an '_') or the end of the |
---|
1968 | string. */ |
---|
1969 | if (!demangle_args (work, mangled, &decl) |
---|
1970 | || (**mangled != '_' && **mangled != '\0')) |
---|
1971 | { |
---|
1972 | success = 0; |
---|
1973 | } |
---|
1974 | if (success && (**mangled == '_')) |
---|
1975 | { |
---|
1976 | (*mangled)++; |
---|
1977 | } |
---|
1978 | break; |
---|
1979 | |
---|
1980 | case 'M': |
---|
1981 | case 'O': |
---|
1982 | { |
---|
1983 | constp = 0; |
---|
1984 | volatilep = 0; |
---|
1985 | |
---|
1986 | member = **mangled == 'M'; |
---|
1987 | (*mangled)++; |
---|
1988 | if (!isdigit (**mangled)) |
---|
1989 | { |
---|
1990 | success = 0; |
---|
1991 | break; |
---|
1992 | } |
---|
1993 | n = consume_count (mangled); |
---|
1994 | if (strlen (*mangled) < n) |
---|
1995 | { |
---|
1996 | success = 0; |
---|
1997 | break; |
---|
1998 | } |
---|
1999 | string_append (&decl, ")"); |
---|
2000 | string_prepend (&decl, "::"); |
---|
2001 | string_prependn (&decl, *mangled, n); |
---|
2002 | string_prepend (&decl, "("); |
---|
2003 | *mangled += n; |
---|
2004 | if (member) |
---|
2005 | { |
---|
2006 | if (**mangled == 'C') |
---|
2007 | { |
---|
2008 | (*mangled)++; |
---|
2009 | constp = 1; |
---|
2010 | } |
---|
2011 | if (**mangled == 'V') |
---|
2012 | { |
---|
2013 | (*mangled)++; |
---|
2014 | volatilep = 1; |
---|
2015 | } |
---|
2016 | if (*(*mangled)++ != 'F') |
---|
2017 | { |
---|
2018 | success = 0; |
---|
2019 | break; |
---|
2020 | } |
---|
2021 | } |
---|
2022 | if ((member && !demangle_args (work, mangled, &decl)) |
---|
2023 | || **mangled != '_') |
---|
2024 | { |
---|
2025 | success = 0; |
---|
2026 | break; |
---|
2027 | } |
---|
2028 | (*mangled)++; |
---|
2029 | if (! PRINT_ANSI_QUALIFIERS) |
---|
2030 | { |
---|
2031 | break; |
---|
2032 | } |
---|
2033 | if (constp) |
---|
2034 | { |
---|
2035 | APPEND_BLANK (&decl); |
---|
2036 | string_append (&decl, "const"); |
---|
2037 | } |
---|
2038 | if (volatilep) |
---|
2039 | { |
---|
2040 | APPEND_BLANK (&decl); |
---|
2041 | string_append (&decl, "volatile"); |
---|
2042 | } |
---|
2043 | break; |
---|
2044 | } |
---|
2045 | case 'G': |
---|
2046 | (*mangled)++; |
---|
2047 | break; |
---|
2048 | |
---|
2049 | case 'C': |
---|
2050 | (*mangled)++; |
---|
2051 | /* |
---|
2052 | if ((*mangled)[1] == 'P') |
---|
2053 | { |
---|
2054 | */ |
---|
2055 | if (PRINT_ANSI_QUALIFIERS) |
---|
2056 | { |
---|
2057 | if (!STRING_EMPTY (&decl)) |
---|
2058 | { |
---|
2059 | string_prepend (&decl, " "); |
---|
2060 | } |
---|
2061 | string_prepend (&decl, "const"); |
---|
2062 | } |
---|
2063 | break; |
---|
2064 | /* |
---|
2065 | } |
---|
2066 | */ |
---|
2067 | |
---|
2068 | /* fall through */ |
---|
2069 | default: |
---|
2070 | done = 1; |
---|
2071 | break; |
---|
2072 | } |
---|
2073 | } |
---|
2074 | |
---|
2075 | switch (**mangled) |
---|
2076 | { |
---|
2077 | /* A qualified name, such as "Outer::Inner". */ |
---|
2078 | case 'Q': |
---|
2079 | success = demangle_qualified (work, mangled, result, 0, 1); |
---|
2080 | break; |
---|
2081 | |
---|
2082 | default: |
---|
2083 | success = demangle_fund_type (work, mangled, result); |
---|
2084 | break; |
---|
2085 | } |
---|
2086 | |
---|
2087 | if (success) |
---|
2088 | { |
---|
2089 | if (!STRING_EMPTY (&decl)) |
---|
2090 | { |
---|
2091 | string_append (result, " "); |
---|
2092 | string_appends (result, &decl); |
---|
2093 | } |
---|
2094 | } |
---|
2095 | else |
---|
2096 | { |
---|
2097 | string_delete (result); |
---|
2098 | } |
---|
2099 | string_delete (&decl); |
---|
2100 | return (success); |
---|
2101 | } |
---|
2102 | |
---|
2103 | /* Given a pointer to a type string that represents a fundamental type |
---|
2104 | argument (int, long, unsigned int, etc) in TYPE, a pointer to the |
---|
2105 | string in which the demangled output is being built in RESULT, and |
---|
2106 | the WORK structure, decode the types and add them to the result. |
---|
2107 | |
---|
2108 | For example: |
---|
2109 | |
---|
2110 | "Ci" => "const int" |
---|
2111 | "Sl" => "signed long" |
---|
2112 | "CUs" => "const unsigned short" |
---|
2113 | |
---|
2114 | */ |
---|
2115 | |
---|
2116 | static int |
---|
2117 | demangle_fund_type (work, mangled, result) |
---|
2118 | struct work_stuff *work; |
---|
2119 | const char **mangled; |
---|
2120 | string *result; |
---|
2121 | { |
---|
2122 | int done = 0; |
---|
2123 | int success = 1; |
---|
2124 | |
---|
2125 | /* First pick off any type qualifiers. There can be more than one. */ |
---|
2126 | |
---|
2127 | while (!done) |
---|
2128 | { |
---|
2129 | switch (**mangled) |
---|
2130 | { |
---|
2131 | case 'C': |
---|
2132 | (*mangled)++; |
---|
2133 | if (PRINT_ANSI_QUALIFIERS) |
---|
2134 | { |
---|
2135 | APPEND_BLANK (result); |
---|
2136 | string_append (result, "const"); |
---|
2137 | } |
---|
2138 | break; |
---|
2139 | case 'U': |
---|
2140 | (*mangled)++; |
---|
2141 | APPEND_BLANK (result); |
---|
2142 | string_append (result, "unsigned"); |
---|
2143 | break; |
---|
2144 | case 'S': /* signed char only */ |
---|
2145 | (*mangled)++; |
---|
2146 | APPEND_BLANK (result); |
---|
2147 | string_append (result, "signed"); |
---|
2148 | break; |
---|
2149 | case 'V': |
---|
2150 | (*mangled)++; |
---|
2151 | if (PRINT_ANSI_QUALIFIERS) |
---|
2152 | { |
---|
2153 | APPEND_BLANK (result); |
---|
2154 | string_append (result, "volatile"); |
---|
2155 | } |
---|
2156 | break; |
---|
2157 | default: |
---|
2158 | done = 1; |
---|
2159 | break; |
---|
2160 | } |
---|
2161 | } |
---|
2162 | |
---|
2163 | /* Now pick off the fundamental type. There can be only one. */ |
---|
2164 | |
---|
2165 | switch (**mangled) |
---|
2166 | { |
---|
2167 | case '\0': |
---|
2168 | case '_': |
---|
2169 | break; |
---|
2170 | case 'v': |
---|
2171 | (*mangled)++; |
---|
2172 | APPEND_BLANK (result); |
---|
2173 | string_append (result, "void"); |
---|
2174 | break; |
---|
2175 | case 'x': |
---|
2176 | (*mangled)++; |
---|
2177 | APPEND_BLANK (result); |
---|
2178 | string_append (result, "long long"); |
---|
2179 | break; |
---|
2180 | case 'l': |
---|
2181 | (*mangled)++; |
---|
2182 | APPEND_BLANK (result); |
---|
2183 | string_append (result, "long"); |
---|
2184 | break; |
---|
2185 | case 'i': |
---|
2186 | (*mangled)++; |
---|
2187 | APPEND_BLANK (result); |
---|
2188 | string_append (result, "int"); |
---|
2189 | break; |
---|
2190 | case 's': |
---|
2191 | (*mangled)++; |
---|
2192 | APPEND_BLANK (result); |
---|
2193 | string_append (result, "short"); |
---|
2194 | break; |
---|
2195 | case 'b': |
---|
2196 | (*mangled)++; |
---|
2197 | APPEND_BLANK (result); |
---|
2198 | string_append (result, "bool"); |
---|
2199 | break; |
---|
2200 | case 'c': |
---|
2201 | (*mangled)++; |
---|
2202 | APPEND_BLANK (result); |
---|
2203 | string_append (result, "char"); |
---|
2204 | break; |
---|
2205 | case 'w': |
---|
2206 | (*mangled)++; |
---|
2207 | APPEND_BLANK (result); |
---|
2208 | string_append (result, "wchar_t"); |
---|
2209 | break; |
---|
2210 | case 'r': |
---|
2211 | (*mangled)++; |
---|
2212 | APPEND_BLANK (result); |
---|
2213 | string_append (result, "long double"); |
---|
2214 | break; |
---|
2215 | case 'd': |
---|
2216 | (*mangled)++; |
---|
2217 | APPEND_BLANK (result); |
---|
2218 | string_append (result, "double"); |
---|
2219 | break; |
---|
2220 | case 'f': |
---|
2221 | (*mangled)++; |
---|
2222 | APPEND_BLANK (result); |
---|
2223 | string_append (result, "float"); |
---|
2224 | break; |
---|
2225 | case 'G': |
---|
2226 | (*mangled)++; |
---|
2227 | if (!isdigit (**mangled)) |
---|
2228 | { |
---|
2229 | success = 0; |
---|
2230 | break; |
---|
2231 | } |
---|
2232 | /* fall through */ |
---|
2233 | /* An explicit type, such as "6mytype" or "7integer" */ |
---|
2234 | case '0': |
---|
2235 | case '1': |
---|
2236 | case '2': |
---|
2237 | case '3': |
---|
2238 | case '4': |
---|
2239 | case '5': |
---|
2240 | case '6': |
---|
2241 | case '7': |
---|
2242 | case '8': |
---|
2243 | case '9': |
---|
2244 | APPEND_BLANK (result); |
---|
2245 | if (!demangle_class_name (work, mangled, result)) { |
---|
2246 | --result->p; |
---|
2247 | success = 0; |
---|
2248 | } |
---|
2249 | break; |
---|
2250 | case 't': |
---|
2251 | success = demangle_template(work,mangled, result, 0); |
---|
2252 | break; |
---|
2253 | default: |
---|
2254 | success = 0; |
---|
2255 | break; |
---|
2256 | } |
---|
2257 | |
---|
2258 | return (success); |
---|
2259 | } |
---|
2260 | |
---|
2261 | /* `result' will be initialized in do_type; it will be freed on failure */ |
---|
2262 | |
---|
2263 | static int |
---|
2264 | do_arg (work, mangled, result) |
---|
2265 | struct work_stuff *work; |
---|
2266 | const char **mangled; |
---|
2267 | string *result; |
---|
2268 | { |
---|
2269 | const char *start = *mangled; |
---|
2270 | |
---|
2271 | if (!do_type (work, mangled, result)) |
---|
2272 | { |
---|
2273 | return (0); |
---|
2274 | } |
---|
2275 | else |
---|
2276 | { |
---|
2277 | remember_type (work, start, *mangled - start); |
---|
2278 | return (1); |
---|
2279 | } |
---|
2280 | } |
---|
2281 | |
---|
2282 | static void |
---|
2283 | remember_type (work, start, len) |
---|
2284 | struct work_stuff *work; |
---|
2285 | const char *start; |
---|
2286 | int len; |
---|
2287 | { |
---|
2288 | char *tem; |
---|
2289 | |
---|
2290 | if (work -> ntypes >= work -> typevec_size) |
---|
2291 | { |
---|
2292 | if (work -> typevec_size == 0) |
---|
2293 | { |
---|
2294 | work -> typevec_size = 3; |
---|
2295 | work -> typevec = |
---|
2296 | (char **) xmalloc (sizeof (char *) * work -> typevec_size); |
---|
2297 | } |
---|
2298 | else |
---|
2299 | { |
---|
2300 | work -> typevec_size *= 2; |
---|
2301 | work -> typevec = |
---|
2302 | (char **) xrealloc ((char *)work -> typevec, |
---|
2303 | sizeof (char *) * work -> typevec_size); |
---|
2304 | } |
---|
2305 | } |
---|
2306 | tem = xmalloc (len + 1); |
---|
2307 | memcpy (tem, start, len); |
---|
2308 | tem[len] = '\0'; |
---|
2309 | work -> typevec[work -> ntypes++] = tem; |
---|
2310 | } |
---|
2311 | |
---|
2312 | /* Forget the remembered types, but not the type vector itself. */ |
---|
2313 | |
---|
2314 | static void |
---|
2315 | forget_types (work) |
---|
2316 | struct work_stuff *work; |
---|
2317 | { |
---|
2318 | int i; |
---|
2319 | |
---|
2320 | while (work -> ntypes > 0) |
---|
2321 | { |
---|
2322 | i = --(work -> ntypes); |
---|
2323 | if (work -> typevec[i] != NULL) |
---|
2324 | { |
---|
2325 | free (work -> typevec[i]); |
---|
2326 | work -> typevec[i] = NULL; |
---|
2327 | } |
---|
2328 | } |
---|
2329 | } |
---|
2330 | |
---|
2331 | /* Process the argument list part of the signature, after any class spec |
---|
2332 | has been consumed, as well as the first 'F' character (if any). For |
---|
2333 | example: |
---|
2334 | |
---|
2335 | "__als__3fooRT0" => process "RT0" |
---|
2336 | "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" |
---|
2337 | |
---|
2338 | DECLP must be already initialised, usually non-empty. It won't be freed |
---|
2339 | on failure. |
---|
2340 | |
---|
2341 | Note that g++ differs significantly from ARM and lucid style mangling |
---|
2342 | with regards to references to previously seen types. For example, given |
---|
2343 | the source fragment: |
---|
2344 | |
---|
2345 | class foo { |
---|
2346 | public: |
---|
2347 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); |
---|
2348 | }; |
---|
2349 | |
---|
2350 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } |
---|
2351 | void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } |
---|
2352 | |
---|
2353 | g++ produces the names: |
---|
2354 | |
---|
2355 | __3fooiRT0iT2iT2 |
---|
2356 | foo__FiR3fooiT1iT1 |
---|
2357 | |
---|
2358 | while lcc (and presumably other ARM style compilers as well) produces: |
---|
2359 | |
---|
2360 | foo__FiR3fooT1T2T1T2 |
---|
2361 | __ct__3fooFiR3fooT1T2T1T2 |
---|
2362 | |
---|
2363 | Note that g++ bases it's type numbers starting at zero and counts all |
---|
2364 | previously seen types, while lucid/ARM bases it's type numbers starting |
---|
2365 | at one and only considers types after it has seen the 'F' character |
---|
2366 | indicating the start of the function args. For lucid/ARM style, we |
---|
2367 | account for this difference by discarding any previously seen types when |
---|
2368 | we see the 'F' character, and subtracting one from the type number |
---|
2369 | reference. |
---|
2370 | |
---|
2371 | */ |
---|
2372 | |
---|
2373 | static int |
---|
2374 | demangle_args (work, mangled, declp) |
---|
2375 | struct work_stuff *work; |
---|
2376 | const char **mangled; |
---|
2377 | string *declp; |
---|
2378 | { |
---|
2379 | string arg; |
---|
2380 | int need_comma = 0; |
---|
2381 | int r; |
---|
2382 | int t; |
---|
2383 | const char *tem; |
---|
2384 | char temptype; |
---|
2385 | |
---|
2386 | if (PRINT_ARG_TYPES) |
---|
2387 | { |
---|
2388 | string_append (declp, "("); |
---|
2389 | if (**mangled == '\0') |
---|
2390 | { |
---|
2391 | string_append (declp, "void"); |
---|
2392 | } |
---|
2393 | } |
---|
2394 | |
---|
2395 | while (**mangled != '_' && **mangled != '\0' && **mangled != 'e') |
---|
2396 | { |
---|
2397 | if ((**mangled == 'N') || (**mangled == 'T')) |
---|
2398 | { |
---|
2399 | temptype = *(*mangled)++; |
---|
2400 | |
---|
2401 | if (temptype == 'N') |
---|
2402 | { |
---|
2403 | if (!get_count (mangled, &r)) |
---|
2404 | { |
---|
2405 | return (0); |
---|
2406 | } |
---|
2407 | } |
---|
2408 | else |
---|
2409 | { |
---|
2410 | r = 1; |
---|
2411 | } |
---|
2412 | if (ARM_DEMANGLING && work -> ntypes >= 10) |
---|
2413 | { |
---|
2414 | /* If we have 10 or more types we might have more than a 1 digit |
---|
2415 | index so we'll have to consume the whole count here. This |
---|
2416 | will lose if the next thing is a type name preceded by a |
---|
2417 | count but it's impossible to demangle that case properly |
---|
2418 | anyway. Eg if we already have 12 types is T12Pc "(..., type1, |
---|
2419 | Pc, ...)" or "(..., type12, char *, ...)" */ |
---|
2420 | if ((t = consume_count(mangled)) == 0) |
---|
2421 | { |
---|
2422 | return (0); |
---|
2423 | } |
---|
2424 | } |
---|
2425 | else |
---|
2426 | { |
---|
2427 | if (!get_count (mangled, &t)) |
---|
2428 | { |
---|
2429 | return (0); |
---|
2430 | } |
---|
2431 | } |
---|
2432 | if (LUCID_DEMANGLING || ARM_DEMANGLING) |
---|
2433 | { |
---|
2434 | t--; |
---|
2435 | } |
---|
2436 | /* Validate the type index. Protect against illegal indices from |
---|
2437 | malformed type strings. */ |
---|
2438 | if ((t < 0) || (t >= work -> ntypes)) |
---|
2439 | { |
---|
2440 | return (0); |
---|
2441 | } |
---|
2442 | while (--r >= 0) |
---|
2443 | { |
---|
2444 | tem = work -> typevec[t]; |
---|
2445 | if (need_comma && PRINT_ARG_TYPES) |
---|
2446 | { |
---|
2447 | string_append (declp, ", "); |
---|
2448 | } |
---|
2449 | if (!do_arg (work, &tem, &arg)) |
---|
2450 | { |
---|
2451 | return (0); |
---|
2452 | } |
---|
2453 | if (PRINT_ARG_TYPES) |
---|
2454 | { |
---|
2455 | string_appends (declp, &arg); |
---|
2456 | } |
---|
2457 | string_delete (&arg); |
---|
2458 | need_comma = 1; |
---|
2459 | } |
---|
2460 | } |
---|
2461 | else |
---|
2462 | { |
---|
2463 | if (need_comma & PRINT_ARG_TYPES) |
---|
2464 | { |
---|
2465 | string_append (declp, ", "); |
---|
2466 | } |
---|
2467 | if (!do_arg (work, mangled, &arg)) |
---|
2468 | { |
---|
2469 | return (0); |
---|
2470 | } |
---|
2471 | if (PRINT_ARG_TYPES) |
---|
2472 | { |
---|
2473 | string_appends (declp, &arg); |
---|
2474 | } |
---|
2475 | string_delete (&arg); |
---|
2476 | need_comma = 1; |
---|
2477 | } |
---|
2478 | } |
---|
2479 | |
---|
2480 | if (**mangled == 'e') |
---|
2481 | { |
---|
2482 | (*mangled)++; |
---|
2483 | if (PRINT_ARG_TYPES) |
---|
2484 | { |
---|
2485 | if (need_comma) |
---|
2486 | { |
---|
2487 | string_append (declp, ","); |
---|
2488 | } |
---|
2489 | string_append (declp, "..."); |
---|
2490 | } |
---|
2491 | } |
---|
2492 | |
---|
2493 | if (PRINT_ARG_TYPES) |
---|
2494 | { |
---|
2495 | string_append (declp, ")"); |
---|
2496 | } |
---|
2497 | return (1); |
---|
2498 | } |
---|
2499 | |
---|
2500 | static void |
---|
2501 | demangle_function_name (work, mangled, declp, scan) |
---|
2502 | struct work_stuff *work; |
---|
2503 | const char **mangled; |
---|
2504 | string *declp; |
---|
2505 | const char *scan; |
---|
2506 | { |
---|
2507 | int i; |
---|
2508 | int len; |
---|
2509 | string type; |
---|
2510 | const char *tem; |
---|
2511 | |
---|
2512 | string_appendn (declp, (*mangled), scan - (*mangled)); |
---|
2513 | string_need (declp, 1); |
---|
2514 | *(declp -> p) = '\0'; |
---|
2515 | |
---|
2516 | /* Consume the function name, including the "__" separating the name |
---|
2517 | from the signature. We are guaranteed that SCAN points to the |
---|
2518 | separator. */ |
---|
2519 | |
---|
2520 | (*mangled) = scan + 2; |
---|
2521 | |
---|
2522 | if (LUCID_DEMANGLING || ARM_DEMANGLING) |
---|
2523 | { |
---|
2524 | |
---|
2525 | /* See if we have an ARM style constructor or destructor operator. |
---|
2526 | If so, then just record it, clear the decl, and return. |
---|
2527 | We can't build the actual constructor/destructor decl until later, |
---|
2528 | when we recover the class name from the signature. */ |
---|
2529 | |
---|
2530 | if (strcmp (declp -> b, "__ct") == 0) |
---|
2531 | { |
---|
2532 | work -> constructor += 1; |
---|
2533 | string_clear (declp); |
---|
2534 | return; |
---|
2535 | } |
---|
2536 | else if (strcmp (declp -> b, "__dt") == 0) |
---|
2537 | { |
---|
2538 | work -> destructor += 1; |
---|
2539 | string_clear (declp); |
---|
2540 | return; |
---|
2541 | } |
---|
2542 | } |
---|
2543 | |
---|
2544 | if (declp->p - declp->b >= 3 |
---|
2545 | && declp->b[0] == 'o' |
---|
2546 | && declp->b[1] == 'p' |
---|
2547 | && strchr (cplus_markers, declp->b[2]) != NULL) |
---|
2548 | { |
---|
2549 | /* see if it's an assignment expression */ |
---|
2550 | if (declp->p - declp->b >= 10 /* op$assign_ */ |
---|
2551 | && memcmp (declp->b + 3, "assign_", 7) == 0) |
---|
2552 | { |
---|
2553 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
---|
2554 | { |
---|
2555 | len = declp->p - declp->b - 10; |
---|
2556 | if (strlen (optable[i].in) == len |
---|
2557 | && memcmp (optable[i].in, declp->b + 10, len) == 0) |
---|
2558 | { |
---|
2559 | string_clear (declp); |
---|
2560 | string_append (declp, "operator"); |
---|
2561 | string_append (declp, optable[i].out); |
---|
2562 | string_append (declp, "="); |
---|
2563 | break; |
---|
2564 | } |
---|
2565 | } |
---|
2566 | } |
---|
2567 | else |
---|
2568 | { |
---|
2569 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
---|
2570 | { |
---|
2571 | int len = declp->p - declp->b - 3; |
---|
2572 | if (strlen (optable[i].in) == len |
---|
2573 | && memcmp (optable[i].in, declp->b + 3, len) == 0) |
---|
2574 | { |
---|
2575 | string_clear (declp); |
---|
2576 | string_append (declp, "operator"); |
---|
2577 | string_append (declp, optable[i].out); |
---|
2578 | break; |
---|
2579 | } |
---|
2580 | } |
---|
2581 | } |
---|
2582 | } |
---|
2583 | else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0 |
---|
2584 | && strchr (cplus_markers, declp->b[4]) != NULL) |
---|
2585 | { |
---|
2586 | /* type conversion operator */ |
---|
2587 | tem = declp->b + 5; |
---|
2588 | if (do_type (work, &tem, &type)) |
---|
2589 | { |
---|
2590 | string_clear (declp); |
---|
2591 | string_append (declp, "operator "); |
---|
2592 | string_appends (declp, &type); |
---|
2593 | string_delete (&type); |
---|
2594 | } |
---|
2595 | } |
---|
2596 | else if (declp->b[0] == '_' && declp->b[1] == '_' |
---|
2597 | && declp->b[2] == 'o' && declp->b[3] == 'p') |
---|
2598 | { |
---|
2599 | /* ANSI. */ |
---|
2600 | /* type conversion operator. */ |
---|
2601 | tem = declp->b + 4; |
---|
2602 | if (do_type (work, &tem, &type)) |
---|
2603 | { |
---|
2604 | string_clear (declp); |
---|
2605 | string_append (declp, "operator "); |
---|
2606 | string_appends (declp, &type); |
---|
2607 | string_delete (&type); |
---|
2608 | } |
---|
2609 | } |
---|
2610 | else if (declp->b[0] == '_' && declp->b[1] == '_' |
---|
2611 | && declp->b[2] >= 'a' && declp->b[2] <= 'z' |
---|
2612 | && declp->b[3] >= 'a' && declp->b[3] <= 'z') |
---|
2613 | { |
---|
2614 | if (declp->b[4] == '\0') |
---|
2615 | { |
---|
2616 | /* Operator. */ |
---|
2617 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
---|
2618 | { |
---|
2619 | if (strlen (optable[i].in) == 2 |
---|
2620 | && memcmp (optable[i].in, declp->b + 2, 2) == 0) |
---|
2621 | { |
---|
2622 | string_clear (declp); |
---|
2623 | string_append (declp, "operator"); |
---|
2624 | string_append (declp, optable[i].out); |
---|
2625 | break; |
---|
2626 | } |
---|
2627 | } |
---|
2628 | } |
---|
2629 | else |
---|
2630 | { |
---|
2631 | if (declp->b[2] == 'a' && declp->b[5] == '\0') |
---|
2632 | { |
---|
2633 | /* Assignment. */ |
---|
2634 | for (i = 0; i < sizeof (optable) / sizeof (optable[0]); i++) |
---|
2635 | { |
---|
2636 | if (strlen (optable[i].in) == 3 |
---|
2637 | && memcmp (optable[i].in, declp->b + 2, 3) == 0) |
---|
2638 | { |
---|
2639 | string_clear (declp); |
---|
2640 | string_append (declp, "operator"); |
---|
2641 | string_append (declp, optable[i].out); |
---|
2642 | break; |
---|
2643 | } |
---|
2644 | } |
---|
2645 | } |
---|
2646 | } |
---|
2647 | } |
---|
2648 | } |
---|
2649 | |
---|
2650 | /* a mini string-handling package */ |
---|
2651 | |
---|
2652 | static void |
---|
2653 | string_need (s, n) |
---|
2654 | string *s; |
---|
2655 | int n; |
---|
2656 | { |
---|
2657 | int tem; |
---|
2658 | |
---|
2659 | if (s->b == NULL) |
---|
2660 | { |
---|
2661 | if (n < 32) |
---|
2662 | { |
---|
2663 | n = 32; |
---|
2664 | } |
---|
2665 | s->p = s->b = xmalloc (n); |
---|
2666 | s->e = s->b + n; |
---|
2667 | } |
---|
2668 | else if (s->e - s->p < n) |
---|
2669 | { |
---|
2670 | tem = s->p - s->b; |
---|
2671 | n += tem; |
---|
2672 | n *= 2; |
---|
2673 | s->b = xrealloc (s->b, n); |
---|
2674 | s->p = s->b + tem; |
---|
2675 | s->e = s->b + n; |
---|
2676 | } |
---|
2677 | } |
---|
2678 | |
---|
2679 | static void |
---|
2680 | string_delete (s) |
---|
2681 | string *s; |
---|
2682 | { |
---|
2683 | if (s->b != NULL) |
---|
2684 | { |
---|
2685 | free (s->b); |
---|
2686 | s->b = s->e = s->p = NULL; |
---|
2687 | } |
---|
2688 | } |
---|
2689 | |
---|
2690 | static void |
---|
2691 | string_init (s) |
---|
2692 | string *s; |
---|
2693 | { |
---|
2694 | s->b = s->p = s->e = NULL; |
---|
2695 | } |
---|
2696 | |
---|
2697 | static void |
---|
2698 | string_clear (s) |
---|
2699 | string *s; |
---|
2700 | { |
---|
2701 | s->p = s->b; |
---|
2702 | } |
---|
2703 | |
---|
2704 | #if 0 |
---|
2705 | |
---|
2706 | static int |
---|
2707 | string_empty (s) |
---|
2708 | string *s; |
---|
2709 | { |
---|
2710 | return (s->b == s->p); |
---|
2711 | } |
---|
2712 | |
---|
2713 | #endif |
---|
2714 | |
---|
2715 | static void |
---|
2716 | string_append (p, s) |
---|
2717 | string *p; |
---|
2718 | const char *s; |
---|
2719 | { |
---|
2720 | int n; |
---|
2721 | if (s == NULL || *s == '\0') |
---|
2722 | return; |
---|
2723 | n = strlen (s); |
---|
2724 | string_need (p, n); |
---|
2725 | memcpy (p->p, s, n); |
---|
2726 | p->p += n; |
---|
2727 | } |
---|
2728 | |
---|
2729 | static void |
---|
2730 | string_appends (p, s) |
---|
2731 | string *p, *s; |
---|
2732 | { |
---|
2733 | int n; |
---|
2734 | |
---|
2735 | if (s->b != s->p) |
---|
2736 | { |
---|
2737 | n = s->p - s->b; |
---|
2738 | string_need (p, n); |
---|
2739 | memcpy (p->p, s->b, n); |
---|
2740 | p->p += n; |
---|
2741 | } |
---|
2742 | } |
---|
2743 | |
---|
2744 | static void |
---|
2745 | string_appendn (p, s, n) |
---|
2746 | string *p; |
---|
2747 | const char *s; |
---|
2748 | int n; |
---|
2749 | { |
---|
2750 | if (n != 0) |
---|
2751 | { |
---|
2752 | string_need (p, n); |
---|
2753 | memcpy (p->p, s, n); |
---|
2754 | p->p += n; |
---|
2755 | } |
---|
2756 | } |
---|
2757 | |
---|
2758 | static void |
---|
2759 | string_prepend (p, s) |
---|
2760 | string *p; |
---|
2761 | const char *s; |
---|
2762 | { |
---|
2763 | if (s != NULL && *s != '\0') |
---|
2764 | { |
---|
2765 | string_prependn (p, s, strlen (s)); |
---|
2766 | } |
---|
2767 | } |
---|
2768 | |
---|
2769 | static void |
---|
2770 | string_prepends (p, s) |
---|
2771 | string *p, *s; |
---|
2772 | { |
---|
2773 | if (s->b != s->p) |
---|
2774 | { |
---|
2775 | string_prependn (p, s->b, s->p - s->b); |
---|
2776 | } |
---|
2777 | } |
---|
2778 | |
---|
2779 | static void |
---|
2780 | string_prependn (p, s, n) |
---|
2781 | string *p; |
---|
2782 | const char *s; |
---|
2783 | int n; |
---|
2784 | { |
---|
2785 | char *q; |
---|
2786 | |
---|
2787 | if (n != 0) |
---|
2788 | { |
---|
2789 | string_need (p, n); |
---|
2790 | for (q = p->p - 1; q >= p->b; q--) |
---|
2791 | { |
---|
2792 | q[n] = q[0]; |
---|
2793 | } |
---|
2794 | memcpy (p->b, s, n); |
---|
2795 | p->p += n; |
---|
2796 | } |
---|
2797 | } |
---|
2798 | |
---|
2799 | /* To generate a standalone demangler program for testing purposes, |
---|
2800 | just compile and link this file with -DMAIN and libiberty.a. When |
---|
2801 | run, it demangles each command line arg, or each stdin string, and |
---|
2802 | prints the result on stdout. */ |
---|
2803 | |
---|
2804 | #ifdef MAIN |
---|
2805 | |
---|
2806 | static void |
---|
2807 | demangle_it (mangled_name) |
---|
2808 | char *mangled_name; |
---|
2809 | { |
---|
2810 | char *result; |
---|
2811 | |
---|
2812 | result = cplus_demangle (mangled_name, DMGL_PARAMS | DMGL_ANSI); |
---|
2813 | if (result == NULL) |
---|
2814 | { |
---|
2815 | printf ("%s\n", mangled_name); |
---|
2816 | } |
---|
2817 | else |
---|
2818 | { |
---|
2819 | printf ("%s\n", result); |
---|
2820 | free (result); |
---|
2821 | } |
---|
2822 | } |
---|
2823 | |
---|
2824 | #include "getopt.h" |
---|
2825 | |
---|
2826 | static char *program_name; |
---|
2827 | static char *program_version = VERSION; |
---|
2828 | |
---|
2829 | static void |
---|
2830 | usage (stream, status) |
---|
2831 | FILE *stream; |
---|
2832 | int status; |
---|
2833 | { |
---|
2834 | fprintf (stream, "\ |
---|
2835 | Usage: %s [-_] [-n] [-s {gnu,lucid,arm}] [--strip-underscores]\n\ |
---|
2836 | [--no-strip-underscores] [--format={gnu,lucid,arm}]\n\ |
---|
2837 | [--help] [--version] [arg...]\n", |
---|
2838 | program_name); |
---|
2839 | exit (status); |
---|
2840 | } |
---|
2841 | |
---|
2842 | #define MBUF_SIZE 512 |
---|
2843 | char mbuffer[MBUF_SIZE]; |
---|
2844 | |
---|
2845 | /* Defined in the automatically-generated underscore.c. */ |
---|
2846 | extern int prepends_underscore; |
---|
2847 | |
---|
2848 | int strip_underscore = 0; |
---|
2849 | |
---|
2850 | static struct option long_options[] = { |
---|
2851 | {"strip-underscores", no_argument, 0, '_'}, |
---|
2852 | {"format", required_argument, 0, 's'}, |
---|
2853 | {"help", no_argument, 0, 'h'}, |
---|
2854 | {"no-strip-underscores", no_argument, 0, 'n'}, |
---|
2855 | {"version", no_argument, 0, 'v'}, |
---|
2856 | {0, no_argument, 0, 0} |
---|
2857 | }; |
---|
2858 | |
---|
2859 | int |
---|
2860 | main (argc, argv) |
---|
2861 | int argc; |
---|
2862 | char **argv; |
---|
2863 | { |
---|
2864 | char *result; |
---|
2865 | int c; |
---|
2866 | |
---|
2867 | program_name = argv[0]; |
---|
2868 | |
---|
2869 | strip_underscore = prepends_underscore; |
---|
2870 | |
---|
2871 | while ((c = getopt_long (argc, argv, "_ns:", long_options, (int *) 0)) != EOF) |
---|
2872 | { |
---|
2873 | switch (c) |
---|
2874 | { |
---|
2875 | case '?': |
---|
2876 | usage (stderr, 1); |
---|
2877 | break; |
---|
2878 | case 'h': |
---|
2879 | usage (stdout, 0); |
---|
2880 | case 'n': |
---|
2881 | strip_underscore = 0; |
---|
2882 | break; |
---|
2883 | case 'v': |
---|
2884 | printf ("GNU %s version %s\n", program_name, program_version); |
---|
2885 | exit (0); |
---|
2886 | case '_': |
---|
2887 | strip_underscore = 1; |
---|
2888 | break; |
---|
2889 | case 's': |
---|
2890 | if (strcmp (optarg, "gnu") == 0) |
---|
2891 | { |
---|
2892 | current_demangling_style = gnu_demangling; |
---|
2893 | } |
---|
2894 | else if (strcmp (optarg, "lucid") == 0) |
---|
2895 | { |
---|
2896 | current_demangling_style = lucid_demangling; |
---|
2897 | } |
---|
2898 | else if (strcmp (optarg, "arm") == 0) |
---|
2899 | { |
---|
2900 | current_demangling_style = arm_demangling; |
---|
2901 | } |
---|
2902 | else |
---|
2903 | { |
---|
2904 | fprintf (stderr, "%s: unknown demangling style `%s'\n", |
---|
2905 | program_name, optarg); |
---|
2906 | exit (1); |
---|
2907 | } |
---|
2908 | break; |
---|
2909 | } |
---|
2910 | } |
---|
2911 | |
---|
2912 | if (optind < argc) |
---|
2913 | { |
---|
2914 | for ( ; optind < argc; optind++) |
---|
2915 | { |
---|
2916 | demangle_it (argv[optind]); |
---|
2917 | } |
---|
2918 | } |
---|
2919 | else |
---|
2920 | { |
---|
2921 | for (;;) |
---|
2922 | { |
---|
2923 | int i = 0; |
---|
2924 | c = getchar (); |
---|
2925 | /* Try to read a label. */ |
---|
2926 | while (c != EOF && (isalnum(c) || c == '_' || c == '$' || c == '.')) |
---|
2927 | { |
---|
2928 | if (i >= MBUF_SIZE-1) |
---|
2929 | break; |
---|
2930 | mbuffer[i++] = c; |
---|
2931 | c = getchar (); |
---|
2932 | } |
---|
2933 | if (i > 0) |
---|
2934 | { |
---|
2935 | int skip_first = 0; |
---|
2936 | |
---|
2937 | if (mbuffer[0] == '.') |
---|
2938 | ++skip_first; |
---|
2939 | if (strip_underscore && mbuffer[skip_first] == '_') |
---|
2940 | ++skip_first; |
---|
2941 | |
---|
2942 | if (skip_first > i) |
---|
2943 | skip_first = i; |
---|
2944 | |
---|
2945 | mbuffer[i] = 0; |
---|
2946 | |
---|
2947 | result = cplus_demangle (mbuffer + skip_first, |
---|
2948 | DMGL_PARAMS | DMGL_ANSI); |
---|
2949 | if (result) |
---|
2950 | { |
---|
2951 | if (mbuffer[0] == '.') |
---|
2952 | putc ('.', stdout); |
---|
2953 | fputs (result, stdout); |
---|
2954 | free (result); |
---|
2955 | } |
---|
2956 | else |
---|
2957 | fputs (mbuffer, stdout); |
---|
2958 | |
---|
2959 | fflush (stdout); |
---|
2960 | } |
---|
2961 | if (c == EOF) |
---|
2962 | break; |
---|
2963 | putchar (c); |
---|
2964 | } |
---|
2965 | } |
---|
2966 | |
---|
2967 | exit (0); |
---|
2968 | } |
---|
2969 | |
---|
2970 | static void |
---|
2971 | fatal (str) |
---|
2972 | char *str; |
---|
2973 | { |
---|
2974 | fprintf (stderr, "%s: %s\n", program_name, str); |
---|
2975 | exit (1); |
---|
2976 | } |
---|
2977 | |
---|
2978 | char * malloc (); |
---|
2979 | char * realloc (); |
---|
2980 | |
---|
2981 | char * |
---|
2982 | xmalloc (size) |
---|
2983 | unsigned size; |
---|
2984 | { |
---|
2985 | register char *value = (char *) malloc (size); |
---|
2986 | if (value == 0) |
---|
2987 | fatal ("virtual memory exhausted"); |
---|
2988 | return value; |
---|
2989 | } |
---|
2990 | |
---|
2991 | char * |
---|
2992 | xrealloc (ptr, size) |
---|
2993 | char *ptr; |
---|
2994 | unsigned size; |
---|
2995 | { |
---|
2996 | register char *value = (char *) realloc (ptr, size); |
---|
2997 | if (value == 0) |
---|
2998 | fatal ("virtual memory exhausted"); |
---|
2999 | return value; |
---|
3000 | } |
---|
3001 | #endif /* main */ |
---|