1 | /* Demangler for GNU C++ |
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2 | Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, |
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3 | 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
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4 | Written by James Clark (jjc@jclark.uucp) |
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5 | Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling |
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6 | Modified by Satish Pai (pai@apollo.hp.com) for HP demangling |
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7 | |
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8 | This file is part of the libiberty library. |
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9 | Libiberty is free software; you can redistribute it and/or |
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10 | modify it under the terms of the GNU Library General Public |
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11 | License as published by the Free Software Foundation; either |
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12 | version 2 of the License, or (at your option) any later version. |
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13 | |
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14 | In addition to the permissions in the GNU Library General Public |
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15 | License, the Free Software Foundation gives you unlimited permission |
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16 | to link the compiled version of this file into combinations with other |
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17 | programs, and to distribute those combinations without any restriction |
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18 | coming from the use of this file. (The Library Public License |
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19 | restrictions do apply in other respects; for example, they cover |
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20 | modification of the file, and distribution when not linked into a |
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21 | combined executable.) |
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22 | |
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23 | Libiberty is distributed in the hope that it will be useful, |
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24 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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25 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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26 | Library General Public License for more details. |
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27 | |
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28 | You should have received a copy of the GNU Library General Public |
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29 | License along with libiberty; see the file COPYING.LIB. If |
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30 | not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
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31 | Boston, MA 02110-1301, USA. */ |
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32 | |
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33 | /* This file exports two functions; cplus_mangle_opname and cplus_demangle. |
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34 | |
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35 | This file imports xmalloc and xrealloc, which are like malloc and |
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36 | realloc except that they generate a fatal error if there is no |
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37 | available memory. */ |
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38 | |
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39 | /* This file lives in both GCC and libiberty. When making changes, please |
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40 | try not to break either. */ |
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41 | |
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42 | #ifdef HAVE_CONFIG_H |
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43 | #include "config.h" |
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44 | #endif |
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45 | |
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46 | #include "safe-ctype.h" |
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47 | |
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48 | #include <sys/types.h> |
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49 | #include <string.h> |
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50 | #include <stdio.h> |
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51 | |
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52 | #ifdef HAVE_STDLIB_H |
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53 | #include <stdlib.h> |
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54 | #else |
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55 | void * malloc (); |
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56 | void * realloc (); |
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57 | #endif |
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58 | |
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59 | #include <demangle.h> |
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60 | #undef CURRENT_DEMANGLING_STYLE |
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61 | #define CURRENT_DEMANGLING_STYLE work->options |
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62 | |
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63 | #include "libiberty.h" |
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64 | |
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65 | static char *ada_demangle (const char *, int); |
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66 | |
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67 | #define min(X,Y) (((X) < (Y)) ? (X) : (Y)) |
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68 | |
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69 | /* A value at least one greater than the maximum number of characters |
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70 | that will be output when using the `%d' format with `printf'. */ |
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71 | #define INTBUF_SIZE 32 |
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72 | |
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73 | extern void fancy_abort (void) ATTRIBUTE_NORETURN; |
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74 | |
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75 | /* In order to allow a single demangler executable to demangle strings |
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76 | using various common values of CPLUS_MARKER, as well as any specific |
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77 | one set at compile time, we maintain a string containing all the |
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78 | commonly used ones, and check to see if the marker we are looking for |
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79 | is in that string. CPLUS_MARKER is usually '$' on systems where the |
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80 | assembler can deal with that. Where the assembler can't, it's usually |
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81 | '.' (but on many systems '.' is used for other things). We put the |
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82 | current defined CPLUS_MARKER first (which defaults to '$'), followed |
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83 | by the next most common value, followed by an explicit '$' in case |
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84 | the value of CPLUS_MARKER is not '$'. |
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85 | |
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86 | We could avoid this if we could just get g++ to tell us what the actual |
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87 | cplus marker character is as part of the debug information, perhaps by |
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88 | ensuring that it is the character that terminates the gcc<n>_compiled |
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89 | marker symbol (FIXME). */ |
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90 | |
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91 | #if !defined (CPLUS_MARKER) |
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92 | #define CPLUS_MARKER '$' |
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93 | #endif |
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94 | |
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95 | enum demangling_styles current_demangling_style = auto_demangling; |
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96 | |
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97 | static char cplus_markers[] = { CPLUS_MARKER, '.', '$', '\0' }; |
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98 | |
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99 | static char char_str[2] = { '\000', '\000' }; |
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100 | |
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101 | void |
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102 | set_cplus_marker_for_demangling (int ch) |
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103 | { |
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104 | cplus_markers[0] = ch; |
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105 | } |
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106 | |
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107 | typedef struct string /* Beware: these aren't required to be */ |
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108 | { /* '\0' terminated. */ |
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109 | char *b; /* pointer to start of string */ |
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110 | char *p; /* pointer after last character */ |
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111 | char *e; /* pointer after end of allocated space */ |
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112 | } string; |
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113 | |
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114 | /* Stuff that is shared between sub-routines. |
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115 | Using a shared structure allows cplus_demangle to be reentrant. */ |
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116 | |
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117 | struct work_stuff |
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118 | { |
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119 | int options; |
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120 | char **typevec; |
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121 | char **ktypevec; |
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122 | char **btypevec; |
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123 | int numk; |
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124 | int numb; |
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125 | int ksize; |
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126 | int bsize; |
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127 | int ntypes; |
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128 | int typevec_size; |
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129 | int constructor; |
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130 | int destructor; |
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131 | int static_type; /* A static member function */ |
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132 | int temp_start; /* index in demangled to start of template args */ |
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133 | int type_quals; /* The type qualifiers. */ |
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134 | int dllimported; /* Symbol imported from a PE DLL */ |
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135 | char **tmpl_argvec; /* Template function arguments. */ |
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136 | int ntmpl_args; /* The number of template function arguments. */ |
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137 | int forgetting_types; /* Nonzero if we are not remembering the types |
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138 | we see. */ |
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139 | string* previous_argument; /* The last function argument demangled. */ |
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140 | int nrepeats; /* The number of times to repeat the previous |
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141 | argument. */ |
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142 | }; |
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143 | |
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144 | #define PRINT_ANSI_QUALIFIERS (work -> options & DMGL_ANSI) |
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145 | #define PRINT_ARG_TYPES (work -> options & DMGL_PARAMS) |
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146 | |
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147 | static const struct optable |
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148 | { |
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149 | const char *const in; |
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150 | const char *const out; |
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151 | const int flags; |
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152 | } optable[] = { |
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153 | {"nw", " new", DMGL_ANSI}, /* new (1.92, ansi) */ |
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154 | {"dl", " delete", DMGL_ANSI}, /* new (1.92, ansi) */ |
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155 | {"new", " new", 0}, /* old (1.91, and 1.x) */ |
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156 | {"delete", " delete", 0}, /* old (1.91, and 1.x) */ |
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157 | {"vn", " new []", DMGL_ANSI}, /* GNU, pending ansi */ |
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158 | {"vd", " delete []", DMGL_ANSI}, /* GNU, pending ansi */ |
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159 | {"as", "=", DMGL_ANSI}, /* ansi */ |
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160 | {"ne", "!=", DMGL_ANSI}, /* old, ansi */ |
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161 | {"eq", "==", DMGL_ANSI}, /* old, ansi */ |
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162 | {"ge", ">=", DMGL_ANSI}, /* old, ansi */ |
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163 | {"gt", ">", DMGL_ANSI}, /* old, ansi */ |
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164 | {"le", "<=", DMGL_ANSI}, /* old, ansi */ |
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165 | {"lt", "<", DMGL_ANSI}, /* old, ansi */ |
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166 | {"plus", "+", 0}, /* old */ |
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167 | {"pl", "+", DMGL_ANSI}, /* ansi */ |
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168 | {"apl", "+=", DMGL_ANSI}, /* ansi */ |
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169 | {"minus", "-", 0}, /* old */ |
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170 | {"mi", "-", DMGL_ANSI}, /* ansi */ |
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171 | {"ami", "-=", DMGL_ANSI}, /* ansi */ |
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172 | {"mult", "*", 0}, /* old */ |
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173 | {"ml", "*", DMGL_ANSI}, /* ansi */ |
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174 | {"amu", "*=", DMGL_ANSI}, /* ansi (ARM/Lucid) */ |
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175 | {"aml", "*=", DMGL_ANSI}, /* ansi (GNU/g++) */ |
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176 | {"convert", "+", 0}, /* old (unary +) */ |
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177 | {"negate", "-", 0}, /* old (unary -) */ |
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178 | {"trunc_mod", "%", 0}, /* old */ |
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179 | {"md", "%", DMGL_ANSI}, /* ansi */ |
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180 | {"amd", "%=", DMGL_ANSI}, /* ansi */ |
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181 | {"trunc_div", "/", 0}, /* old */ |
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182 | {"dv", "/", DMGL_ANSI}, /* ansi */ |
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183 | {"adv", "/=", DMGL_ANSI}, /* ansi */ |
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184 | {"truth_andif", "&&", 0}, /* old */ |
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185 | {"aa", "&&", DMGL_ANSI}, /* ansi */ |
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186 | {"truth_orif", "||", 0}, /* old */ |
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187 | {"oo", "||", DMGL_ANSI}, /* ansi */ |
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188 | {"truth_not", "!", 0}, /* old */ |
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189 | {"nt", "!", DMGL_ANSI}, /* ansi */ |
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190 | {"postincrement","++", 0}, /* old */ |
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191 | {"pp", "++", DMGL_ANSI}, /* ansi */ |
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192 | {"postdecrement","--", 0}, /* old */ |
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193 | {"mm", "--", DMGL_ANSI}, /* ansi */ |
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194 | {"bit_ior", "|", 0}, /* old */ |
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195 | {"or", "|", DMGL_ANSI}, /* ansi */ |
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196 | {"aor", "|=", DMGL_ANSI}, /* ansi */ |
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197 | {"bit_xor", "^", 0}, /* old */ |
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198 | {"er", "^", DMGL_ANSI}, /* ansi */ |
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199 | {"aer", "^=", DMGL_ANSI}, /* ansi */ |
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200 | {"bit_and", "&", 0}, /* old */ |
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201 | {"ad", "&", DMGL_ANSI}, /* ansi */ |
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202 | {"aad", "&=", DMGL_ANSI}, /* ansi */ |
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203 | {"bit_not", "~", 0}, /* old */ |
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204 | {"co", "~", DMGL_ANSI}, /* ansi */ |
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205 | {"call", "()", 0}, /* old */ |
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206 | {"cl", "()", DMGL_ANSI}, /* ansi */ |
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207 | {"alshift", "<<", 0}, /* old */ |
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208 | {"ls", "<<", DMGL_ANSI}, /* ansi */ |
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209 | {"als", "<<=", DMGL_ANSI}, /* ansi */ |
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210 | {"arshift", ">>", 0}, /* old */ |
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211 | {"rs", ">>", DMGL_ANSI}, /* ansi */ |
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212 | {"ars", ">>=", DMGL_ANSI}, /* ansi */ |
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213 | {"component", "->", 0}, /* old */ |
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214 | {"pt", "->", DMGL_ANSI}, /* ansi; Lucid C++ form */ |
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215 | {"rf", "->", DMGL_ANSI}, /* ansi; ARM/GNU form */ |
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216 | {"indirect", "*", 0}, /* old */ |
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217 | {"method_call", "->()", 0}, /* old */ |
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218 | {"addr", "&", 0}, /* old (unary &) */ |
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219 | {"array", "[]", 0}, /* old */ |
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220 | {"vc", "[]", DMGL_ANSI}, /* ansi */ |
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221 | {"compound", ", ", 0}, /* old */ |
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222 | {"cm", ", ", DMGL_ANSI}, /* ansi */ |
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223 | {"cond", "?:", 0}, /* old */ |
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224 | {"cn", "?:", DMGL_ANSI}, /* pseudo-ansi */ |
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225 | {"max", ">?", 0}, /* old */ |
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226 | {"mx", ">?", DMGL_ANSI}, /* pseudo-ansi */ |
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227 | {"min", "<?", 0}, /* old */ |
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228 | {"mn", "<?", DMGL_ANSI}, /* pseudo-ansi */ |
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229 | {"nop", "", 0}, /* old (for operator=) */ |
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230 | {"rm", "->*", DMGL_ANSI}, /* ansi */ |
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231 | {"sz", "sizeof ", DMGL_ANSI} /* pseudo-ansi */ |
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232 | }; |
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233 | |
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234 | /* These values are used to indicate the various type varieties. |
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235 | They are all non-zero so that they can be used as `success' |
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236 | values. */ |
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237 | typedef enum type_kind_t |
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238 | { |
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239 | tk_none, |
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240 | tk_pointer, |
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241 | tk_reference, |
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242 | tk_integral, |
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243 | tk_bool, |
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244 | tk_char, |
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245 | tk_real |
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246 | } type_kind_t; |
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247 | |
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248 | const struct demangler_engine libiberty_demanglers[] = |
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249 | { |
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250 | { |
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251 | NO_DEMANGLING_STYLE_STRING, |
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252 | no_demangling, |
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253 | "Demangling disabled" |
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254 | } |
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255 | , |
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256 | { |
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257 | AUTO_DEMANGLING_STYLE_STRING, |
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258 | auto_demangling, |
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259 | "Automatic selection based on executable" |
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260 | } |
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261 | , |
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262 | { |
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263 | GNU_DEMANGLING_STYLE_STRING, |
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264 | gnu_demangling, |
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265 | "GNU (g++) style demangling" |
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266 | } |
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267 | , |
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268 | { |
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269 | LUCID_DEMANGLING_STYLE_STRING, |
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270 | lucid_demangling, |
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271 | "Lucid (lcc) style demangling" |
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272 | } |
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273 | , |
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274 | { |
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275 | ARM_DEMANGLING_STYLE_STRING, |
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276 | arm_demangling, |
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277 | "ARM style demangling" |
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278 | } |
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279 | , |
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280 | { |
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281 | HP_DEMANGLING_STYLE_STRING, |
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282 | hp_demangling, |
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283 | "HP (aCC) style demangling" |
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284 | } |
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285 | , |
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286 | { |
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287 | EDG_DEMANGLING_STYLE_STRING, |
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288 | edg_demangling, |
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289 | "EDG style demangling" |
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290 | } |
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291 | , |
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292 | { |
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293 | GNU_V3_DEMANGLING_STYLE_STRING, |
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294 | gnu_v3_demangling, |
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295 | "GNU (g++) V3 ABI-style demangling" |
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296 | } |
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297 | , |
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298 | { |
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299 | JAVA_DEMANGLING_STYLE_STRING, |
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300 | java_demangling, |
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301 | "Java style demangling" |
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302 | } |
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303 | , |
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304 | { |
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305 | GNAT_DEMANGLING_STYLE_STRING, |
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306 | gnat_demangling, |
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307 | "GNAT style demangling" |
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308 | } |
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309 | , |
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310 | { |
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311 | NULL, unknown_demangling, NULL |
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312 | } |
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313 | }; |
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314 | |
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315 | #define STRING_EMPTY(str) ((str) -> b == (str) -> p) |
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316 | #define APPEND_BLANK(str) {if (!STRING_EMPTY(str)) \ |
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317 | string_append(str, " ");} |
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318 | #define LEN_STRING(str) ( (STRING_EMPTY(str))?0:((str)->p - (str)->b)) |
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319 | |
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320 | /* The scope separator appropriate for the language being demangled. */ |
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321 | |
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322 | #define SCOPE_STRING(work) ((work->options & DMGL_JAVA) ? "." : "::") |
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323 | |
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324 | #define ARM_VTABLE_STRING "__vtbl__" /* Lucid/ARM virtual table prefix */ |
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325 | #define ARM_VTABLE_STRLEN 8 /* strlen (ARM_VTABLE_STRING) */ |
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326 | |
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327 | /* Prototypes for local functions */ |
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328 | |
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329 | static void delete_work_stuff (struct work_stuff *); |
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330 | |
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331 | static void delete_non_B_K_work_stuff (struct work_stuff *); |
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332 | |
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333 | static char *mop_up (struct work_stuff *, string *, int); |
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334 | |
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335 | static void squangle_mop_up (struct work_stuff *); |
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336 | |
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337 | static void work_stuff_copy_to_from (struct work_stuff *, struct work_stuff *); |
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338 | |
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339 | #if 0 |
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340 | static int |
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341 | demangle_method_args (struct work_stuff *, const char **, string *); |
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342 | #endif |
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343 | |
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344 | static char * |
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345 | internal_cplus_demangle (struct work_stuff *, const char *); |
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346 | |
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347 | static int |
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348 | demangle_template_template_parm (struct work_stuff *work, |
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349 | const char **, string *); |
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350 | |
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351 | static int |
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352 | demangle_template (struct work_stuff *work, const char **, string *, |
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353 | string *, int, int); |
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354 | |
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355 | static int |
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356 | arm_pt (struct work_stuff *, const char *, int, const char **, |
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357 | const char **); |
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358 | |
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359 | static int |
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360 | demangle_class_name (struct work_stuff *, const char **, string *); |
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361 | |
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362 | static int |
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363 | demangle_qualified (struct work_stuff *, const char **, string *, |
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364 | int, int); |
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365 | |
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366 | static int demangle_class (struct work_stuff *, const char **, string *); |
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367 | |
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368 | static int demangle_fund_type (struct work_stuff *, const char **, string *); |
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369 | |
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370 | static int demangle_signature (struct work_stuff *, const char **, string *); |
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371 | |
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372 | static int demangle_prefix (struct work_stuff *, const char **, string *); |
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373 | |
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374 | static int gnu_special (struct work_stuff *, const char **, string *); |
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375 | |
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376 | static int arm_special (const char **, string *); |
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377 | |
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378 | static void string_need (string *, int); |
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379 | |
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380 | static void string_delete (string *); |
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381 | |
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382 | static void |
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383 | string_init (string *); |
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384 | |
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385 | static void string_clear (string *); |
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386 | |
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387 | #if 0 |
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388 | static int string_empty (string *); |
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389 | #endif |
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390 | |
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391 | static void string_append (string *, const char *); |
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392 | |
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393 | static void string_appends (string *, string *); |
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394 | |
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395 | static void string_appendn (string *, const char *, int); |
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396 | |
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397 | static void string_prepend (string *, const char *); |
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398 | |
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399 | static void string_prependn (string *, const char *, int); |
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400 | |
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401 | static void string_append_template_idx (string *, int); |
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402 | |
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403 | static int get_count (const char **, int *); |
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404 | |
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405 | static int consume_count (const char **); |
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406 | |
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407 | static int consume_count_with_underscores (const char**); |
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408 | |
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409 | static int demangle_args (struct work_stuff *, const char **, string *); |
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410 | |
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411 | static int demangle_nested_args (struct work_stuff*, const char**, string*); |
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412 | |
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413 | static int do_type (struct work_stuff *, const char **, string *); |
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414 | |
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415 | static int do_arg (struct work_stuff *, const char **, string *); |
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416 | |
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417 | static int |
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418 | demangle_function_name (struct work_stuff *, const char **, string *, |
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419 | const char *); |
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420 | |
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421 | static int |
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422 | iterate_demangle_function (struct work_stuff *, |
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423 | const char **, string *, const char *); |
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424 | |
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425 | static void remember_type (struct work_stuff *, const char *, int); |
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426 | |
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427 | static void remember_Btype (struct work_stuff *, const char *, int, int); |
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428 | |
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429 | static int register_Btype (struct work_stuff *); |
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430 | |
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431 | static void remember_Ktype (struct work_stuff *, const char *, int); |
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432 | |
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433 | static void forget_types (struct work_stuff *); |
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434 | |
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435 | static void forget_B_and_K_types (struct work_stuff *); |
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436 | |
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437 | static void string_prepends (string *, string *); |
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438 | |
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439 | static int |
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440 | demangle_template_value_parm (struct work_stuff*, const char**, |
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441 | string*, type_kind_t); |
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442 | |
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443 | static int |
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444 | do_hpacc_template_const_value (struct work_stuff *, const char **, string *); |
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445 | |
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446 | static int |
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447 | do_hpacc_template_literal (struct work_stuff *, const char **, string *); |
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448 | |
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449 | static int snarf_numeric_literal (const char **, string *); |
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450 | |
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451 | /* There is a TYPE_QUAL value for each type qualifier. They can be |
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452 | combined by bitwise-or to form the complete set of qualifiers for a |
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453 | type. */ |
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454 | |
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455 | #define TYPE_UNQUALIFIED 0x0 |
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456 | #define TYPE_QUAL_CONST 0x1 |
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457 | #define TYPE_QUAL_VOLATILE 0x2 |
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458 | #define TYPE_QUAL_RESTRICT 0x4 |
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459 | |
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460 | static int code_for_qualifier (int); |
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461 | |
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462 | static const char* qualifier_string (int); |
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463 | |
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464 | static const char* demangle_qualifier (int); |
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465 | |
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466 | static int demangle_expression (struct work_stuff *, const char **, string *, |
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467 | type_kind_t); |
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468 | |
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469 | static int |
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470 | demangle_integral_value (struct work_stuff *, const char **, string *); |
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471 | |
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472 | static int |
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473 | demangle_real_value (struct work_stuff *, const char **, string *); |
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474 | |
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475 | static void |
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476 | demangle_arm_hp_template (struct work_stuff *, const char **, int, string *); |
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477 | |
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478 | static void |
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479 | recursively_demangle (struct work_stuff *, const char **, string *, int); |
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480 | |
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481 | static void grow_vect (char **, size_t *, size_t, int); |
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482 | |
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483 | /* Translate count to integer, consuming tokens in the process. |
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484 | Conversion terminates on the first non-digit character. |
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485 | |
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486 | Trying to consume something that isn't a count results in no |
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487 | consumption of input and a return of -1. |
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488 | |
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489 | Overflow consumes the rest of the digits, and returns -1. */ |
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490 | |
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491 | static int |
---|
492 | consume_count (const char **type) |
---|
493 | { |
---|
494 | int count = 0; |
---|
495 | |
---|
496 | if (! ISDIGIT ((unsigned char)**type)) |
---|
497 | return -1; |
---|
498 | |
---|
499 | while (ISDIGIT ((unsigned char)**type)) |
---|
500 | { |
---|
501 | count *= 10; |
---|
502 | |
---|
503 | /* Check for overflow. |
---|
504 | We assume that count is represented using two's-complement; |
---|
505 | no power of two is divisible by ten, so if an overflow occurs |
---|
506 | when multiplying by ten, the result will not be a multiple of |
---|
507 | ten. */ |
---|
508 | if ((count % 10) != 0) |
---|
509 | { |
---|
510 | while (ISDIGIT ((unsigned char) **type)) |
---|
511 | (*type)++; |
---|
512 | return -1; |
---|
513 | } |
---|
514 | |
---|
515 | count += **type - '0'; |
---|
516 | (*type)++; |
---|
517 | } |
---|
518 | |
---|
519 | if (count < 0) |
---|
520 | count = -1; |
---|
521 | |
---|
522 | return (count); |
---|
523 | } |
---|
524 | |
---|
525 | |
---|
526 | /* Like consume_count, but for counts that are preceded and followed |
---|
527 | by '_' if they are greater than 10. Also, -1 is returned for |
---|
528 | failure, since 0 can be a valid value. */ |
---|
529 | |
---|
530 | static int |
---|
531 | consume_count_with_underscores (const char **mangled) |
---|
532 | { |
---|
533 | int idx; |
---|
534 | |
---|
535 | if (**mangled == '_') |
---|
536 | { |
---|
537 | (*mangled)++; |
---|
538 | if (!ISDIGIT ((unsigned char)**mangled)) |
---|
539 | return -1; |
---|
540 | |
---|
541 | idx = consume_count (mangled); |
---|
542 | if (**mangled != '_') |
---|
543 | /* The trailing underscore was missing. */ |
---|
544 | return -1; |
---|
545 | |
---|
546 | (*mangled)++; |
---|
547 | } |
---|
548 | else |
---|
549 | { |
---|
550 | if (**mangled < '0' || **mangled > '9') |
---|
551 | return -1; |
---|
552 | |
---|
553 | idx = **mangled - '0'; |
---|
554 | (*mangled)++; |
---|
555 | } |
---|
556 | |
---|
557 | return idx; |
---|
558 | } |
---|
559 | |
---|
560 | /* C is the code for a type-qualifier. Return the TYPE_QUAL |
---|
561 | corresponding to this qualifier. */ |
---|
562 | |
---|
563 | static int |
---|
564 | code_for_qualifier (int c) |
---|
565 | { |
---|
566 | switch (c) |
---|
567 | { |
---|
568 | case 'C': |
---|
569 | return TYPE_QUAL_CONST; |
---|
570 | |
---|
571 | case 'V': |
---|
572 | return TYPE_QUAL_VOLATILE; |
---|
573 | |
---|
574 | case 'u': |
---|
575 | return TYPE_QUAL_RESTRICT; |
---|
576 | |
---|
577 | default: |
---|
578 | break; |
---|
579 | } |
---|
580 | |
---|
581 | /* C was an invalid qualifier. */ |
---|
582 | abort (); |
---|
583 | } |
---|
584 | |
---|
585 | /* Return the string corresponding to the qualifiers given by |
---|
586 | TYPE_QUALS. */ |
---|
587 | |
---|
588 | static const char* |
---|
589 | qualifier_string (int type_quals) |
---|
590 | { |
---|
591 | switch (type_quals) |
---|
592 | { |
---|
593 | case TYPE_UNQUALIFIED: |
---|
594 | return ""; |
---|
595 | |
---|
596 | case TYPE_QUAL_CONST: |
---|
597 | return "const"; |
---|
598 | |
---|
599 | case TYPE_QUAL_VOLATILE: |
---|
600 | return "volatile"; |
---|
601 | |
---|
602 | case TYPE_QUAL_RESTRICT: |
---|
603 | return "__restrict"; |
---|
604 | |
---|
605 | case TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE: |
---|
606 | return "const volatile"; |
---|
607 | |
---|
608 | case TYPE_QUAL_CONST | TYPE_QUAL_RESTRICT: |
---|
609 | return "const __restrict"; |
---|
610 | |
---|
611 | case TYPE_QUAL_VOLATILE | TYPE_QUAL_RESTRICT: |
---|
612 | return "volatile __restrict"; |
---|
613 | |
---|
614 | case TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE | TYPE_QUAL_RESTRICT: |
---|
615 | return "const volatile __restrict"; |
---|
616 | |
---|
617 | default: |
---|
618 | break; |
---|
619 | } |
---|
620 | |
---|
621 | /* TYPE_QUALS was an invalid qualifier set. */ |
---|
622 | abort (); |
---|
623 | } |
---|
624 | |
---|
625 | /* C is the code for a type-qualifier. Return the string |
---|
626 | corresponding to this qualifier. This function should only be |
---|
627 | called with a valid qualifier code. */ |
---|
628 | |
---|
629 | static const char* |
---|
630 | demangle_qualifier (int c) |
---|
631 | { |
---|
632 | return qualifier_string (code_for_qualifier (c)); |
---|
633 | } |
---|
634 | |
---|
635 | int |
---|
636 | cplus_demangle_opname (const char *opname, char *result, int options) |
---|
637 | { |
---|
638 | int len, len1, ret; |
---|
639 | string type; |
---|
640 | struct work_stuff work[1]; |
---|
641 | const char *tem; |
---|
642 | |
---|
643 | len = strlen(opname); |
---|
644 | result[0] = '\0'; |
---|
645 | ret = 0; |
---|
646 | memset ((char *) work, 0, sizeof (work)); |
---|
647 | work->options = options; |
---|
648 | |
---|
649 | if (opname[0] == '_' && opname[1] == '_' |
---|
650 | && opname[2] == 'o' && opname[3] == 'p') |
---|
651 | { |
---|
652 | /* ANSI. */ |
---|
653 | /* type conversion operator. */ |
---|
654 | tem = opname + 4; |
---|
655 | if (do_type (work, &tem, &type)) |
---|
656 | { |
---|
657 | strcat (result, "operator "); |
---|
658 | strncat (result, type.b, type.p - type.b); |
---|
659 | string_delete (&type); |
---|
660 | ret = 1; |
---|
661 | } |
---|
662 | } |
---|
663 | else if (opname[0] == '_' && opname[1] == '_' |
---|
664 | && ISLOWER((unsigned char)opname[2]) |
---|
665 | && ISLOWER((unsigned char)opname[3])) |
---|
666 | { |
---|
667 | if (opname[4] == '\0') |
---|
668 | { |
---|
669 | /* Operator. */ |
---|
670 | size_t i; |
---|
671 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
672 | { |
---|
673 | if (strlen (optable[i].in) == 2 |
---|
674 | && memcmp (optable[i].in, opname + 2, 2) == 0) |
---|
675 | { |
---|
676 | strcat (result, "operator"); |
---|
677 | strcat (result, optable[i].out); |
---|
678 | ret = 1; |
---|
679 | break; |
---|
680 | } |
---|
681 | } |
---|
682 | } |
---|
683 | else |
---|
684 | { |
---|
685 | if (opname[2] == 'a' && opname[5] == '\0') |
---|
686 | { |
---|
687 | /* Assignment. */ |
---|
688 | size_t i; |
---|
689 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
690 | { |
---|
691 | if (strlen (optable[i].in) == 3 |
---|
692 | && memcmp (optable[i].in, opname + 2, 3) == 0) |
---|
693 | { |
---|
694 | strcat (result, "operator"); |
---|
695 | strcat (result, optable[i].out); |
---|
696 | ret = 1; |
---|
697 | break; |
---|
698 | } |
---|
699 | } |
---|
700 | } |
---|
701 | } |
---|
702 | } |
---|
703 | else if (len >= 3 |
---|
704 | && opname[0] == 'o' |
---|
705 | && opname[1] == 'p' |
---|
706 | && strchr (cplus_markers, opname[2]) != NULL) |
---|
707 | { |
---|
708 | /* see if it's an assignment expression */ |
---|
709 | if (len >= 10 /* op$assign_ */ |
---|
710 | && memcmp (opname + 3, "assign_", 7) == 0) |
---|
711 | { |
---|
712 | size_t i; |
---|
713 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
714 | { |
---|
715 | len1 = len - 10; |
---|
716 | if ((int) strlen (optable[i].in) == len1 |
---|
717 | && memcmp (optable[i].in, opname + 10, len1) == 0) |
---|
718 | { |
---|
719 | strcat (result, "operator"); |
---|
720 | strcat (result, optable[i].out); |
---|
721 | strcat (result, "="); |
---|
722 | ret = 1; |
---|
723 | break; |
---|
724 | } |
---|
725 | } |
---|
726 | } |
---|
727 | else |
---|
728 | { |
---|
729 | size_t i; |
---|
730 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
731 | { |
---|
732 | len1 = len - 3; |
---|
733 | if ((int) strlen (optable[i].in) == len1 |
---|
734 | && memcmp (optable[i].in, opname + 3, len1) == 0) |
---|
735 | { |
---|
736 | strcat (result, "operator"); |
---|
737 | strcat (result, optable[i].out); |
---|
738 | ret = 1; |
---|
739 | break; |
---|
740 | } |
---|
741 | } |
---|
742 | } |
---|
743 | } |
---|
744 | else if (len >= 5 && memcmp (opname, "type", 4) == 0 |
---|
745 | && strchr (cplus_markers, opname[4]) != NULL) |
---|
746 | { |
---|
747 | /* type conversion operator */ |
---|
748 | tem = opname + 5; |
---|
749 | if (do_type (work, &tem, &type)) |
---|
750 | { |
---|
751 | strcat (result, "operator "); |
---|
752 | strncat (result, type.b, type.p - type.b); |
---|
753 | string_delete (&type); |
---|
754 | ret = 1; |
---|
755 | } |
---|
756 | } |
---|
757 | squangle_mop_up (work); |
---|
758 | return ret; |
---|
759 | |
---|
760 | } |
---|
761 | |
---|
762 | /* Takes operator name as e.g. "++" and returns mangled |
---|
763 | operator name (e.g. "postincrement_expr"), or NULL if not found. |
---|
764 | |
---|
765 | If OPTIONS & DMGL_ANSI == 1, return the ANSI name; |
---|
766 | if OPTIONS & DMGL_ANSI == 0, return the old GNU name. */ |
---|
767 | |
---|
768 | const char * |
---|
769 | cplus_mangle_opname (const char *opname, int options) |
---|
770 | { |
---|
771 | size_t i; |
---|
772 | int len; |
---|
773 | |
---|
774 | len = strlen (opname); |
---|
775 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
776 | { |
---|
777 | if ((int) strlen (optable[i].out) == len |
---|
778 | && (options & DMGL_ANSI) == (optable[i].flags & DMGL_ANSI) |
---|
779 | && memcmp (optable[i].out, opname, len) == 0) |
---|
780 | return optable[i].in; |
---|
781 | } |
---|
782 | return (0); |
---|
783 | } |
---|
784 | |
---|
785 | /* Add a routine to set the demangling style to be sure it is valid and |
---|
786 | allow for any demangler initialization that maybe necessary. */ |
---|
787 | |
---|
788 | enum demangling_styles |
---|
789 | cplus_demangle_set_style (enum demangling_styles style) |
---|
790 | { |
---|
791 | const struct demangler_engine *demangler = libiberty_demanglers; |
---|
792 | |
---|
793 | for (; demangler->demangling_style != unknown_demangling; ++demangler) |
---|
794 | if (style == demangler->demangling_style) |
---|
795 | { |
---|
796 | current_demangling_style = style; |
---|
797 | return current_demangling_style; |
---|
798 | } |
---|
799 | |
---|
800 | return unknown_demangling; |
---|
801 | } |
---|
802 | |
---|
803 | /* Do string name to style translation */ |
---|
804 | |
---|
805 | enum demangling_styles |
---|
806 | cplus_demangle_name_to_style (const char *name) |
---|
807 | { |
---|
808 | const struct demangler_engine *demangler = libiberty_demanglers; |
---|
809 | |
---|
810 | for (; demangler->demangling_style != unknown_demangling; ++demangler) |
---|
811 | if (strcmp (name, demangler->demangling_style_name) == 0) |
---|
812 | return demangler->demangling_style; |
---|
813 | |
---|
814 | return unknown_demangling; |
---|
815 | } |
---|
816 | |
---|
817 | /* char *cplus_demangle (const char *mangled, int options) |
---|
818 | |
---|
819 | If MANGLED is a mangled function name produced by GNU C++, then |
---|
820 | a pointer to a @code{malloc}ed string giving a C++ representation |
---|
821 | of the name will be returned; otherwise NULL will be returned. |
---|
822 | It is the caller's responsibility to free the string which |
---|
823 | is returned. |
---|
824 | |
---|
825 | The OPTIONS arg may contain one or more of the following bits: |
---|
826 | |
---|
827 | DMGL_ANSI ANSI qualifiers such as `const' and `void' are |
---|
828 | included. |
---|
829 | DMGL_PARAMS Function parameters are included. |
---|
830 | |
---|
831 | For example, |
---|
832 | |
---|
833 | cplus_demangle ("foo__1Ai", DMGL_PARAMS) => "A::foo(int)" |
---|
834 | cplus_demangle ("foo__1Ai", DMGL_PARAMS | DMGL_ANSI) => "A::foo(int)" |
---|
835 | cplus_demangle ("foo__1Ai", 0) => "A::foo" |
---|
836 | |
---|
837 | cplus_demangle ("foo__1Afe", DMGL_PARAMS) => "A::foo(float,...)" |
---|
838 | cplus_demangle ("foo__1Afe", DMGL_PARAMS | DMGL_ANSI)=> "A::foo(float,...)" |
---|
839 | cplus_demangle ("foo__1Afe", 0) => "A::foo" |
---|
840 | |
---|
841 | Note that any leading underscores, or other such characters prepended by |
---|
842 | the compilation system, are presumed to have already been stripped from |
---|
843 | MANGLED. */ |
---|
844 | |
---|
845 | char * |
---|
846 | cplus_demangle (const char *mangled, int options) |
---|
847 | { |
---|
848 | char *ret; |
---|
849 | struct work_stuff work[1]; |
---|
850 | |
---|
851 | if (current_demangling_style == no_demangling) |
---|
852 | return xstrdup (mangled); |
---|
853 | |
---|
854 | memset ((char *) work, 0, sizeof (work)); |
---|
855 | work->options = options; |
---|
856 | if ((work->options & DMGL_STYLE_MASK) == 0) |
---|
857 | work->options |= (int) current_demangling_style & DMGL_STYLE_MASK; |
---|
858 | |
---|
859 | /* The V3 ABI demangling is implemented elsewhere. */ |
---|
860 | if (GNU_V3_DEMANGLING || AUTO_DEMANGLING) |
---|
861 | { |
---|
862 | ret = cplus_demangle_v3 (mangled, work->options); |
---|
863 | if (ret || GNU_V3_DEMANGLING) |
---|
864 | return ret; |
---|
865 | } |
---|
866 | |
---|
867 | if (JAVA_DEMANGLING) |
---|
868 | { |
---|
869 | ret = java_demangle_v3 (mangled); |
---|
870 | if (ret) |
---|
871 | return ret; |
---|
872 | } |
---|
873 | |
---|
874 | if (GNAT_DEMANGLING) |
---|
875 | return ada_demangle(mangled,options); |
---|
876 | |
---|
877 | ret = internal_cplus_demangle (work, mangled); |
---|
878 | squangle_mop_up (work); |
---|
879 | return (ret); |
---|
880 | } |
---|
881 | |
---|
882 | |
---|
883 | /* Assuming *OLD_VECT points to an array of *SIZE objects of size |
---|
884 | ELEMENT_SIZE, grow it to contain at least MIN_SIZE objects, |
---|
885 | updating *OLD_VECT and *SIZE as necessary. */ |
---|
886 | |
---|
887 | static void |
---|
888 | grow_vect (char **old_vect, size_t *size, size_t min_size, int element_size) |
---|
889 | { |
---|
890 | if (*size < min_size) |
---|
891 | { |
---|
892 | *size *= 2; |
---|
893 | if (*size < min_size) |
---|
894 | *size = min_size; |
---|
895 | *old_vect = XRESIZEVAR (char, *old_vect, *size * element_size); |
---|
896 | } |
---|
897 | } |
---|
898 | |
---|
899 | /* Demangle ada names: |
---|
900 | 1. Discard final __{DIGIT}+ or ${DIGIT}+ |
---|
901 | 2. Convert other instances of embedded "__" to `.'. |
---|
902 | 3. Discard leading _ada_. |
---|
903 | 4. Remove everything after first ___ if it is followed by 'X'. |
---|
904 | 5. Put symbols that should be suppressed in <...> brackets. |
---|
905 | The resulting string is valid until the next call of ada_demangle. */ |
---|
906 | |
---|
907 | static char * |
---|
908 | ada_demangle (const char *mangled, int option ATTRIBUTE_UNUSED) |
---|
909 | { |
---|
910 | int i, j; |
---|
911 | int len0; |
---|
912 | const char* p; |
---|
913 | char *demangled = NULL; |
---|
914 | int changed; |
---|
915 | size_t demangled_size = 0; |
---|
916 | |
---|
917 | changed = 0; |
---|
918 | |
---|
919 | if (strncmp (mangled, "_ada_", 5) == 0) |
---|
920 | { |
---|
921 | mangled += 5; |
---|
922 | changed = 1; |
---|
923 | } |
---|
924 | |
---|
925 | if (mangled[0] == '_' || mangled[0] == '<') |
---|
926 | goto Suppress; |
---|
927 | |
---|
928 | p = strstr (mangled, "___"); |
---|
929 | if (p == NULL) |
---|
930 | len0 = strlen (mangled); |
---|
931 | else |
---|
932 | { |
---|
933 | if (p[3] == 'X') |
---|
934 | { |
---|
935 | len0 = p - mangled; |
---|
936 | changed = 1; |
---|
937 | } |
---|
938 | else |
---|
939 | goto Suppress; |
---|
940 | } |
---|
941 | |
---|
942 | /* Make demangled big enough for possible expansion by operator name. */ |
---|
943 | grow_vect (&demangled, |
---|
944 | &demangled_size, 2 * len0 + 1, |
---|
945 | sizeof (char)); |
---|
946 | |
---|
947 | if (ISDIGIT ((unsigned char) mangled[len0 - 1])) { |
---|
948 | for (i = len0 - 2; i >= 0 && ISDIGIT ((unsigned char) mangled[i]); i -= 1) |
---|
949 | ; |
---|
950 | if (i > 1 && mangled[i] == '_' && mangled[i - 1] == '_') |
---|
951 | { |
---|
952 | len0 = i - 1; |
---|
953 | changed = 1; |
---|
954 | } |
---|
955 | else if (mangled[i] == '$') |
---|
956 | { |
---|
957 | len0 = i; |
---|
958 | changed = 1; |
---|
959 | } |
---|
960 | } |
---|
961 | |
---|
962 | for (i = 0, j = 0; i < len0 && ! ISALPHA ((unsigned char)mangled[i]); |
---|
963 | i += 1, j += 1) |
---|
964 | demangled[j] = mangled[i]; |
---|
965 | |
---|
966 | while (i < len0) |
---|
967 | { |
---|
968 | if (i < len0 - 2 && mangled[i] == '_' && mangled[i + 1] == '_') |
---|
969 | { |
---|
970 | demangled[j] = '.'; |
---|
971 | changed = 1; |
---|
972 | i += 2; j += 1; |
---|
973 | } |
---|
974 | else |
---|
975 | { |
---|
976 | demangled[j] = mangled[i]; |
---|
977 | i += 1; j += 1; |
---|
978 | } |
---|
979 | } |
---|
980 | demangled[j] = '\000'; |
---|
981 | |
---|
982 | for (i = 0; demangled[i] != '\0'; i += 1) |
---|
983 | if (ISUPPER ((unsigned char)demangled[i]) || demangled[i] == ' ') |
---|
984 | goto Suppress; |
---|
985 | |
---|
986 | if (! changed) |
---|
987 | { |
---|
988 | free (demangled); |
---|
989 | return NULL; |
---|
990 | } |
---|
991 | else |
---|
992 | return demangled; |
---|
993 | |
---|
994 | Suppress: |
---|
995 | grow_vect (&demangled, |
---|
996 | &demangled_size, strlen (mangled) + 3, |
---|
997 | sizeof (char)); |
---|
998 | |
---|
999 | if (mangled[0] == '<') |
---|
1000 | strcpy (demangled, mangled); |
---|
1001 | else |
---|
1002 | sprintf (demangled, "<%s>", mangled); |
---|
1003 | |
---|
1004 | return demangled; |
---|
1005 | } |
---|
1006 | |
---|
1007 | /* This function performs most of what cplus_demangle use to do, but |
---|
1008 | to be able to demangle a name with a B, K or n code, we need to |
---|
1009 | have a longer term memory of what types have been seen. The original |
---|
1010 | now initializes and cleans up the squangle code info, while internal |
---|
1011 | calls go directly to this routine to avoid resetting that info. */ |
---|
1012 | |
---|
1013 | static char * |
---|
1014 | internal_cplus_demangle (struct work_stuff *work, const char *mangled) |
---|
1015 | { |
---|
1016 | |
---|
1017 | string decl; |
---|
1018 | int success = 0; |
---|
1019 | char *demangled = NULL; |
---|
1020 | int s1, s2, s3, s4; |
---|
1021 | s1 = work->constructor; |
---|
1022 | s2 = work->destructor; |
---|
1023 | s3 = work->static_type; |
---|
1024 | s4 = work->type_quals; |
---|
1025 | work->constructor = work->destructor = 0; |
---|
1026 | work->type_quals = TYPE_UNQUALIFIED; |
---|
1027 | work->dllimported = 0; |
---|
1028 | |
---|
1029 | if ((mangled != NULL) && (*mangled != '\0')) |
---|
1030 | { |
---|
1031 | string_init (&decl); |
---|
1032 | |
---|
1033 | /* First check to see if gnu style demangling is active and if the |
---|
1034 | string to be demangled contains a CPLUS_MARKER. If so, attempt to |
---|
1035 | recognize one of the gnu special forms rather than looking for a |
---|
1036 | standard prefix. In particular, don't worry about whether there |
---|
1037 | is a "__" string in the mangled string. Consider "_$_5__foo" for |
---|
1038 | example. */ |
---|
1039 | |
---|
1040 | if ((AUTO_DEMANGLING || GNU_DEMANGLING)) |
---|
1041 | { |
---|
1042 | success = gnu_special (work, &mangled, &decl); |
---|
1043 | } |
---|
1044 | if (!success) |
---|
1045 | { |
---|
1046 | success = demangle_prefix (work, &mangled, &decl); |
---|
1047 | } |
---|
1048 | if (success && (*mangled != '\0')) |
---|
1049 | { |
---|
1050 | success = demangle_signature (work, &mangled, &decl); |
---|
1051 | } |
---|
1052 | if (work->constructor == 2) |
---|
1053 | { |
---|
1054 | string_prepend (&decl, "global constructors keyed to "); |
---|
1055 | work->constructor = 0; |
---|
1056 | } |
---|
1057 | else if (work->destructor == 2) |
---|
1058 | { |
---|
1059 | string_prepend (&decl, "global destructors keyed to "); |
---|
1060 | work->destructor = 0; |
---|
1061 | } |
---|
1062 | else if (work->dllimported == 1) |
---|
1063 | { |
---|
1064 | string_prepend (&decl, "import stub for "); |
---|
1065 | work->dllimported = 0; |
---|
1066 | } |
---|
1067 | demangled = mop_up (work, &decl, success); |
---|
1068 | } |
---|
1069 | work->constructor = s1; |
---|
1070 | work->destructor = s2; |
---|
1071 | work->static_type = s3; |
---|
1072 | work->type_quals = s4; |
---|
1073 | return demangled; |
---|
1074 | } |
---|
1075 | |
---|
1076 | |
---|
1077 | /* Clear out and squangling related storage */ |
---|
1078 | static void |
---|
1079 | squangle_mop_up (struct work_stuff *work) |
---|
1080 | { |
---|
1081 | /* clean up the B and K type mangling types. */ |
---|
1082 | forget_B_and_K_types (work); |
---|
1083 | if (work -> btypevec != NULL) |
---|
1084 | { |
---|
1085 | free ((char *) work -> btypevec); |
---|
1086 | } |
---|
1087 | if (work -> ktypevec != NULL) |
---|
1088 | { |
---|
1089 | free ((char *) work -> ktypevec); |
---|
1090 | } |
---|
1091 | } |
---|
1092 | |
---|
1093 | |
---|
1094 | /* Copy the work state and storage. */ |
---|
1095 | |
---|
1096 | static void |
---|
1097 | work_stuff_copy_to_from (struct work_stuff *to, struct work_stuff *from) |
---|
1098 | { |
---|
1099 | int i; |
---|
1100 | |
---|
1101 | delete_work_stuff (to); |
---|
1102 | |
---|
1103 | /* Shallow-copy scalars. */ |
---|
1104 | memcpy (to, from, sizeof (*to)); |
---|
1105 | |
---|
1106 | /* Deep-copy dynamic storage. */ |
---|
1107 | if (from->typevec_size) |
---|
1108 | to->typevec = XNEWVEC (char *, from->typevec_size); |
---|
1109 | |
---|
1110 | for (i = 0; i < from->ntypes; i++) |
---|
1111 | { |
---|
1112 | int len = strlen (from->typevec[i]) + 1; |
---|
1113 | |
---|
1114 | to->typevec[i] = XNEWVEC (char, len); |
---|
1115 | memcpy (to->typevec[i], from->typevec[i], len); |
---|
1116 | } |
---|
1117 | |
---|
1118 | if (from->ksize) |
---|
1119 | to->ktypevec = XNEWVEC (char *, from->ksize); |
---|
1120 | |
---|
1121 | for (i = 0; i < from->numk; i++) |
---|
1122 | { |
---|
1123 | int len = strlen (from->ktypevec[i]) + 1; |
---|
1124 | |
---|
1125 | to->ktypevec[i] = XNEWVEC (char, len); |
---|
1126 | memcpy (to->ktypevec[i], from->ktypevec[i], len); |
---|
1127 | } |
---|
1128 | |
---|
1129 | if (from->bsize) |
---|
1130 | to->btypevec = XNEWVEC (char *, from->bsize); |
---|
1131 | |
---|
1132 | for (i = 0; i < from->numb; i++) |
---|
1133 | { |
---|
1134 | int len = strlen (from->btypevec[i]) + 1; |
---|
1135 | |
---|
1136 | to->btypevec[i] = XNEWVEC (char , len); |
---|
1137 | memcpy (to->btypevec[i], from->btypevec[i], len); |
---|
1138 | } |
---|
1139 | |
---|
1140 | if (from->ntmpl_args) |
---|
1141 | to->tmpl_argvec = XNEWVEC (char *, from->ntmpl_args); |
---|
1142 | |
---|
1143 | for (i = 0; i < from->ntmpl_args; i++) |
---|
1144 | { |
---|
1145 | int len = strlen (from->tmpl_argvec[i]) + 1; |
---|
1146 | |
---|
1147 | to->tmpl_argvec[i] = XNEWVEC (char, len); |
---|
1148 | memcpy (to->tmpl_argvec[i], from->tmpl_argvec[i], len); |
---|
1149 | } |
---|
1150 | |
---|
1151 | if (from->previous_argument) |
---|
1152 | { |
---|
1153 | to->previous_argument = XNEW (string); |
---|
1154 | string_init (to->previous_argument); |
---|
1155 | string_appends (to->previous_argument, from->previous_argument); |
---|
1156 | } |
---|
1157 | } |
---|
1158 | |
---|
1159 | |
---|
1160 | /* Delete dynamic stuff in work_stuff that is not to be re-used. */ |
---|
1161 | |
---|
1162 | static void |
---|
1163 | delete_non_B_K_work_stuff (struct work_stuff *work) |
---|
1164 | { |
---|
1165 | /* Discard the remembered types, if any. */ |
---|
1166 | |
---|
1167 | forget_types (work); |
---|
1168 | if (work -> typevec != NULL) |
---|
1169 | { |
---|
1170 | free ((char *) work -> typevec); |
---|
1171 | work -> typevec = NULL; |
---|
1172 | work -> typevec_size = 0; |
---|
1173 | } |
---|
1174 | if (work->tmpl_argvec) |
---|
1175 | { |
---|
1176 | int i; |
---|
1177 | |
---|
1178 | for (i = 0; i < work->ntmpl_args; i++) |
---|
1179 | if (work->tmpl_argvec[i]) |
---|
1180 | free ((char*) work->tmpl_argvec[i]); |
---|
1181 | |
---|
1182 | free ((char*) work->tmpl_argvec); |
---|
1183 | work->tmpl_argvec = NULL; |
---|
1184 | } |
---|
1185 | if (work->previous_argument) |
---|
1186 | { |
---|
1187 | string_delete (work->previous_argument); |
---|
1188 | free ((char*) work->previous_argument); |
---|
1189 | work->previous_argument = NULL; |
---|
1190 | } |
---|
1191 | } |
---|
1192 | |
---|
1193 | |
---|
1194 | /* Delete all dynamic storage in work_stuff. */ |
---|
1195 | static void |
---|
1196 | delete_work_stuff (struct work_stuff *work) |
---|
1197 | { |
---|
1198 | delete_non_B_K_work_stuff (work); |
---|
1199 | squangle_mop_up (work); |
---|
1200 | } |
---|
1201 | |
---|
1202 | |
---|
1203 | /* Clear out any mangled storage */ |
---|
1204 | |
---|
1205 | static char * |
---|
1206 | mop_up (struct work_stuff *work, string *declp, int success) |
---|
1207 | { |
---|
1208 | char *demangled = NULL; |
---|
1209 | |
---|
1210 | delete_non_B_K_work_stuff (work); |
---|
1211 | |
---|
1212 | /* If demangling was successful, ensure that the demangled string is null |
---|
1213 | terminated and return it. Otherwise, free the demangling decl. */ |
---|
1214 | |
---|
1215 | if (!success) |
---|
1216 | { |
---|
1217 | string_delete (declp); |
---|
1218 | } |
---|
1219 | else |
---|
1220 | { |
---|
1221 | string_appendn (declp, "", 1); |
---|
1222 | demangled = declp->b; |
---|
1223 | } |
---|
1224 | return (demangled); |
---|
1225 | } |
---|
1226 | |
---|
1227 | /* |
---|
1228 | |
---|
1229 | LOCAL FUNCTION |
---|
1230 | |
---|
1231 | demangle_signature -- demangle the signature part of a mangled name |
---|
1232 | |
---|
1233 | SYNOPSIS |
---|
1234 | |
---|
1235 | static int |
---|
1236 | demangle_signature (struct work_stuff *work, const char **mangled, |
---|
1237 | string *declp); |
---|
1238 | |
---|
1239 | DESCRIPTION |
---|
1240 | |
---|
1241 | Consume and demangle the signature portion of the mangled name. |
---|
1242 | |
---|
1243 | DECLP is the string where demangled output is being built. At |
---|
1244 | entry it contains the demangled root name from the mangled name |
---|
1245 | prefix. I.E. either a demangled operator name or the root function |
---|
1246 | name. In some special cases, it may contain nothing. |
---|
1247 | |
---|
1248 | *MANGLED points to the current unconsumed location in the mangled |
---|
1249 | name. As tokens are consumed and demangling is performed, the |
---|
1250 | pointer is updated to continuously point at the next token to |
---|
1251 | be consumed. |
---|
1252 | |
---|
1253 | Demangling GNU style mangled names is nasty because there is no |
---|
1254 | explicit token that marks the start of the outermost function |
---|
1255 | argument list. */ |
---|
1256 | |
---|
1257 | static int |
---|
1258 | demangle_signature (struct work_stuff *work, |
---|
1259 | const char **mangled, string *declp) |
---|
1260 | { |
---|
1261 | int success = 1; |
---|
1262 | int func_done = 0; |
---|
1263 | int expect_func = 0; |
---|
1264 | int expect_return_type = 0; |
---|
1265 | const char *oldmangled = NULL; |
---|
1266 | string trawname; |
---|
1267 | string tname; |
---|
1268 | |
---|
1269 | while (success && (**mangled != '\0')) |
---|
1270 | { |
---|
1271 | switch (**mangled) |
---|
1272 | { |
---|
1273 | case 'Q': |
---|
1274 | oldmangled = *mangled; |
---|
1275 | success = demangle_qualified (work, mangled, declp, 1, 0); |
---|
1276 | if (success) |
---|
1277 | remember_type (work, oldmangled, *mangled - oldmangled); |
---|
1278 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
1279 | expect_func = 1; |
---|
1280 | oldmangled = NULL; |
---|
1281 | break; |
---|
1282 | |
---|
1283 | case 'K': |
---|
1284 | oldmangled = *mangled; |
---|
1285 | success = demangle_qualified (work, mangled, declp, 1, 0); |
---|
1286 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
1287 | { |
---|
1288 | expect_func = 1; |
---|
1289 | } |
---|
1290 | oldmangled = NULL; |
---|
1291 | break; |
---|
1292 | |
---|
1293 | case 'S': |
---|
1294 | /* Static member function */ |
---|
1295 | if (oldmangled == NULL) |
---|
1296 | { |
---|
1297 | oldmangled = *mangled; |
---|
1298 | } |
---|
1299 | (*mangled)++; |
---|
1300 | work -> static_type = 1; |
---|
1301 | break; |
---|
1302 | |
---|
1303 | case 'C': |
---|
1304 | case 'V': |
---|
1305 | case 'u': |
---|
1306 | work->type_quals |= code_for_qualifier (**mangled); |
---|
1307 | |
---|
1308 | /* a qualified member function */ |
---|
1309 | if (oldmangled == NULL) |
---|
1310 | oldmangled = *mangled; |
---|
1311 | (*mangled)++; |
---|
1312 | break; |
---|
1313 | |
---|
1314 | case 'L': |
---|
1315 | /* Local class name follows after "Lnnn_" */ |
---|
1316 | if (HP_DEMANGLING) |
---|
1317 | { |
---|
1318 | while (**mangled && (**mangled != '_')) |
---|
1319 | (*mangled)++; |
---|
1320 | if (!**mangled) |
---|
1321 | success = 0; |
---|
1322 | else |
---|
1323 | (*mangled)++; |
---|
1324 | } |
---|
1325 | else |
---|
1326 | success = 0; |
---|
1327 | break; |
---|
1328 | |
---|
1329 | case '0': case '1': case '2': case '3': case '4': |
---|
1330 | case '5': case '6': case '7': case '8': case '9': |
---|
1331 | if (oldmangled == NULL) |
---|
1332 | { |
---|
1333 | oldmangled = *mangled; |
---|
1334 | } |
---|
1335 | work->temp_start = -1; /* uppermost call to demangle_class */ |
---|
1336 | success = demangle_class (work, mangled, declp); |
---|
1337 | if (success) |
---|
1338 | { |
---|
1339 | remember_type (work, oldmangled, *mangled - oldmangled); |
---|
1340 | } |
---|
1341 | if (AUTO_DEMANGLING || GNU_DEMANGLING || EDG_DEMANGLING) |
---|
1342 | { |
---|
1343 | /* EDG and others will have the "F", so we let the loop cycle |
---|
1344 | if we are looking at one. */ |
---|
1345 | if (**mangled != 'F') |
---|
1346 | expect_func = 1; |
---|
1347 | } |
---|
1348 | oldmangled = NULL; |
---|
1349 | break; |
---|
1350 | |
---|
1351 | case 'B': |
---|
1352 | { |
---|
1353 | string s; |
---|
1354 | success = do_type (work, mangled, &s); |
---|
1355 | if (success) |
---|
1356 | { |
---|
1357 | string_append (&s, SCOPE_STRING (work)); |
---|
1358 | string_prepends (declp, &s); |
---|
1359 | string_delete (&s); |
---|
1360 | } |
---|
1361 | oldmangled = NULL; |
---|
1362 | expect_func = 1; |
---|
1363 | } |
---|
1364 | break; |
---|
1365 | |
---|
1366 | case 'F': |
---|
1367 | /* Function */ |
---|
1368 | /* ARM/HP style demangling includes a specific 'F' character after |
---|
1369 | the class name. For GNU style, it is just implied. So we can |
---|
1370 | safely just consume any 'F' at this point and be compatible |
---|
1371 | with either style. */ |
---|
1372 | |
---|
1373 | oldmangled = NULL; |
---|
1374 | func_done = 1; |
---|
1375 | (*mangled)++; |
---|
1376 | |
---|
1377 | /* For lucid/ARM/HP style we have to forget any types we might |
---|
1378 | have remembered up to this point, since they were not argument |
---|
1379 | types. GNU style considers all types seen as available for |
---|
1380 | back references. See comment in demangle_args() */ |
---|
1381 | |
---|
1382 | if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
---|
1383 | { |
---|
1384 | forget_types (work); |
---|
1385 | } |
---|
1386 | success = demangle_args (work, mangled, declp); |
---|
1387 | /* After picking off the function args, we expect to either |
---|
1388 | find the function return type (preceded by an '_') or the |
---|
1389 | end of the string. */ |
---|
1390 | if (success && (AUTO_DEMANGLING || EDG_DEMANGLING) && **mangled == '_') |
---|
1391 | { |
---|
1392 | ++(*mangled); |
---|
1393 | /* At this level, we do not care about the return type. */ |
---|
1394 | success = do_type (work, mangled, &tname); |
---|
1395 | string_delete (&tname); |
---|
1396 | } |
---|
1397 | |
---|
1398 | break; |
---|
1399 | |
---|
1400 | case 't': |
---|
1401 | /* G++ Template */ |
---|
1402 | string_init(&trawname); |
---|
1403 | string_init(&tname); |
---|
1404 | if (oldmangled == NULL) |
---|
1405 | { |
---|
1406 | oldmangled = *mangled; |
---|
1407 | } |
---|
1408 | success = demangle_template (work, mangled, &tname, |
---|
1409 | &trawname, 1, 1); |
---|
1410 | if (success) |
---|
1411 | { |
---|
1412 | remember_type (work, oldmangled, *mangled - oldmangled); |
---|
1413 | } |
---|
1414 | string_append (&tname, SCOPE_STRING (work)); |
---|
1415 | |
---|
1416 | string_prepends(declp, &tname); |
---|
1417 | if (work -> destructor & 1) |
---|
1418 | { |
---|
1419 | string_prepend (&trawname, "~"); |
---|
1420 | string_appends (declp, &trawname); |
---|
1421 | work->destructor -= 1; |
---|
1422 | } |
---|
1423 | if ((work->constructor & 1) || (work->destructor & 1)) |
---|
1424 | { |
---|
1425 | string_appends (declp, &trawname); |
---|
1426 | work->constructor -= 1; |
---|
1427 | } |
---|
1428 | string_delete(&trawname); |
---|
1429 | string_delete(&tname); |
---|
1430 | oldmangled = NULL; |
---|
1431 | expect_func = 1; |
---|
1432 | break; |
---|
1433 | |
---|
1434 | case '_': |
---|
1435 | if ((AUTO_DEMANGLING || GNU_DEMANGLING) && expect_return_type) |
---|
1436 | { |
---|
1437 | /* Read the return type. */ |
---|
1438 | string return_type; |
---|
1439 | |
---|
1440 | (*mangled)++; |
---|
1441 | success = do_type (work, mangled, &return_type); |
---|
1442 | APPEND_BLANK (&return_type); |
---|
1443 | |
---|
1444 | string_prepends (declp, &return_type); |
---|
1445 | string_delete (&return_type); |
---|
1446 | break; |
---|
1447 | } |
---|
1448 | else |
---|
1449 | /* At the outermost level, we cannot have a return type specified, |
---|
1450 | so if we run into another '_' at this point we are dealing with |
---|
1451 | a mangled name that is either bogus, or has been mangled by |
---|
1452 | some algorithm we don't know how to deal with. So just |
---|
1453 | reject the entire demangling. */ |
---|
1454 | /* However, "_nnn" is an expected suffix for alternate entry point |
---|
1455 | numbered nnn for a function, with HP aCC, so skip over that |
---|
1456 | without reporting failure. pai/1997-09-04 */ |
---|
1457 | if (HP_DEMANGLING) |
---|
1458 | { |
---|
1459 | (*mangled)++; |
---|
1460 | while (**mangled && ISDIGIT ((unsigned char)**mangled)) |
---|
1461 | (*mangled)++; |
---|
1462 | } |
---|
1463 | else |
---|
1464 | success = 0; |
---|
1465 | break; |
---|
1466 | |
---|
1467 | case 'H': |
---|
1468 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
1469 | { |
---|
1470 | /* A G++ template function. Read the template arguments. */ |
---|
1471 | success = demangle_template (work, mangled, declp, 0, 0, |
---|
1472 | 0); |
---|
1473 | if (!(work->constructor & 1)) |
---|
1474 | expect_return_type = 1; |
---|
1475 | (*mangled)++; |
---|
1476 | break; |
---|
1477 | } |
---|
1478 | else |
---|
1479 | /* fall through */ |
---|
1480 | {;} |
---|
1481 | |
---|
1482 | default: |
---|
1483 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
1484 | { |
---|
1485 | /* Assume we have stumbled onto the first outermost function |
---|
1486 | argument token, and start processing args. */ |
---|
1487 | func_done = 1; |
---|
1488 | success = demangle_args (work, mangled, declp); |
---|
1489 | } |
---|
1490 | else |
---|
1491 | { |
---|
1492 | /* Non-GNU demanglers use a specific token to mark the start |
---|
1493 | of the outermost function argument tokens. Typically 'F', |
---|
1494 | for ARM/HP-demangling, for example. So if we find something |
---|
1495 | we are not prepared for, it must be an error. */ |
---|
1496 | success = 0; |
---|
1497 | } |
---|
1498 | break; |
---|
1499 | } |
---|
1500 | /* |
---|
1501 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
1502 | */ |
---|
1503 | { |
---|
1504 | if (success && expect_func) |
---|
1505 | { |
---|
1506 | func_done = 1; |
---|
1507 | if (LUCID_DEMANGLING || ARM_DEMANGLING || EDG_DEMANGLING) |
---|
1508 | { |
---|
1509 | forget_types (work); |
---|
1510 | } |
---|
1511 | success = demangle_args (work, mangled, declp); |
---|
1512 | /* Since template include the mangling of their return types, |
---|
1513 | we must set expect_func to 0 so that we don't try do |
---|
1514 | demangle more arguments the next time we get here. */ |
---|
1515 | expect_func = 0; |
---|
1516 | } |
---|
1517 | } |
---|
1518 | } |
---|
1519 | if (success && !func_done) |
---|
1520 | { |
---|
1521 | if (AUTO_DEMANGLING || GNU_DEMANGLING) |
---|
1522 | { |
---|
1523 | /* With GNU style demangling, bar__3foo is 'foo::bar(void)', and |
---|
1524 | bar__3fooi is 'foo::bar(int)'. We get here when we find the |
---|
1525 | first case, and need to ensure that the '(void)' gets added to |
---|
1526 | the current declp. Note that with ARM/HP, the first case |
---|
1527 | represents the name of a static data member 'foo::bar', |
---|
1528 | which is in the current declp, so we leave it alone. */ |
---|
1529 | success = demangle_args (work, mangled, declp); |
---|
1530 | } |
---|
1531 | } |
---|
1532 | if (success && PRINT_ARG_TYPES) |
---|
1533 | { |
---|
1534 | if (work->static_type) |
---|
1535 | string_append (declp, " static"); |
---|
1536 | if (work->type_quals != TYPE_UNQUALIFIED) |
---|
1537 | { |
---|
1538 | APPEND_BLANK (declp); |
---|
1539 | string_append (declp, qualifier_string (work->type_quals)); |
---|
1540 | } |
---|
1541 | } |
---|
1542 | |
---|
1543 | return (success); |
---|
1544 | } |
---|
1545 | |
---|
1546 | #if 0 |
---|
1547 | |
---|
1548 | static int |
---|
1549 | demangle_method_args (struct work_stuff *work, const char **mangled, |
---|
1550 | string *declp) |
---|
1551 | { |
---|
1552 | int success = 0; |
---|
1553 | |
---|
1554 | if (work -> static_type) |
---|
1555 | { |
---|
1556 | string_append (declp, *mangled + 1); |
---|
1557 | *mangled += strlen (*mangled); |
---|
1558 | success = 1; |
---|
1559 | } |
---|
1560 | else |
---|
1561 | { |
---|
1562 | success = demangle_args (work, mangled, declp); |
---|
1563 | } |
---|
1564 | return (success); |
---|
1565 | } |
---|
1566 | |
---|
1567 | #endif |
---|
1568 | |
---|
1569 | static int |
---|
1570 | demangle_template_template_parm (struct work_stuff *work, |
---|
1571 | const char **mangled, string *tname) |
---|
1572 | { |
---|
1573 | int i; |
---|
1574 | int r; |
---|
1575 | int need_comma = 0; |
---|
1576 | int success = 1; |
---|
1577 | string temp; |
---|
1578 | |
---|
1579 | string_append (tname, "template <"); |
---|
1580 | /* get size of template parameter list */ |
---|
1581 | if (get_count (mangled, &r)) |
---|
1582 | { |
---|
1583 | for (i = 0; i < r; i++) |
---|
1584 | { |
---|
1585 | if (need_comma) |
---|
1586 | { |
---|
1587 | string_append (tname, ", "); |
---|
1588 | } |
---|
1589 | |
---|
1590 | /* Z for type parameters */ |
---|
1591 | if (**mangled == 'Z') |
---|
1592 | { |
---|
1593 | (*mangled)++; |
---|
1594 | string_append (tname, "class"); |
---|
1595 | } |
---|
1596 | /* z for template parameters */ |
---|
1597 | else if (**mangled == 'z') |
---|
1598 | { |
---|
1599 | (*mangled)++; |
---|
1600 | success = |
---|
1601 | demangle_template_template_parm (work, mangled, tname); |
---|
1602 | if (!success) |
---|
1603 | { |
---|
1604 | break; |
---|
1605 | } |
---|
1606 | } |
---|
1607 | else |
---|
1608 | { |
---|
1609 | /* temp is initialized in do_type */ |
---|
1610 | success = do_type (work, mangled, &temp); |
---|
1611 | if (success) |
---|
1612 | { |
---|
1613 | string_appends (tname, &temp); |
---|
1614 | } |
---|
1615 | string_delete(&temp); |
---|
1616 | if (!success) |
---|
1617 | { |
---|
1618 | break; |
---|
1619 | } |
---|
1620 | } |
---|
1621 | need_comma = 1; |
---|
1622 | } |
---|
1623 | |
---|
1624 | } |
---|
1625 | if (tname->p[-1] == '>') |
---|
1626 | string_append (tname, " "); |
---|
1627 | string_append (tname, "> class"); |
---|
1628 | return (success); |
---|
1629 | } |
---|
1630 | |
---|
1631 | static int |
---|
1632 | demangle_expression (struct work_stuff *work, const char **mangled, |
---|
1633 | string *s, type_kind_t tk) |
---|
1634 | { |
---|
1635 | int need_operator = 0; |
---|
1636 | int success; |
---|
1637 | |
---|
1638 | success = 1; |
---|
1639 | string_appendn (s, "(", 1); |
---|
1640 | (*mangled)++; |
---|
1641 | while (success && **mangled != 'W' && **mangled != '\0') |
---|
1642 | { |
---|
1643 | if (need_operator) |
---|
1644 | { |
---|
1645 | size_t i; |
---|
1646 | size_t len; |
---|
1647 | |
---|
1648 | success = 0; |
---|
1649 | |
---|
1650 | len = strlen (*mangled); |
---|
1651 | |
---|
1652 | for (i = 0; i < ARRAY_SIZE (optable); ++i) |
---|
1653 | { |
---|
1654 | size_t l = strlen (optable[i].in); |
---|
1655 | |
---|
1656 | if (l <= len |
---|
1657 | && memcmp (optable[i].in, *mangled, l) == 0) |
---|
1658 | { |
---|
1659 | string_appendn (s, " ", 1); |
---|
1660 | string_append (s, optable[i].out); |
---|
1661 | string_appendn (s, " ", 1); |
---|
1662 | success = 1; |
---|
1663 | (*mangled) += l; |
---|
1664 | break; |
---|
1665 | } |
---|
1666 | } |
---|
1667 | |
---|
1668 | if (!success) |
---|
1669 | break; |
---|
1670 | } |
---|
1671 | else |
---|
1672 | need_operator = 1; |
---|
1673 | |
---|
1674 | success = demangle_template_value_parm (work, mangled, s, tk); |
---|
1675 | } |
---|
1676 | |
---|
1677 | if (**mangled != 'W') |
---|
1678 | success = 0; |
---|
1679 | else |
---|
1680 | { |
---|
1681 | string_appendn (s, ")", 1); |
---|
1682 | (*mangled)++; |
---|
1683 | } |
---|
1684 | |
---|
1685 | return success; |
---|
1686 | } |
---|
1687 | |
---|
1688 | static int |
---|
1689 | demangle_integral_value (struct work_stuff *work, |
---|
1690 | const char **mangled, string *s) |
---|
1691 | { |
---|
1692 | int success; |
---|
1693 | |
---|
1694 | if (**mangled == 'E') |
---|
1695 | success = demangle_expression (work, mangled, s, tk_integral); |
---|
1696 | else if (**mangled == 'Q' || **mangled == 'K') |
---|
1697 | success = demangle_qualified (work, mangled, s, 0, 1); |
---|
1698 | else |
---|
1699 | { |
---|
1700 | int value; |
---|
1701 | |
---|
1702 | /* By default, we let the number decide whether we shall consume an |
---|
1703 | underscore. */ |
---|
1704 | int multidigit_without_leading_underscore = 0; |
---|
1705 | int leave_following_underscore = 0; |
---|
1706 | |
---|
1707 | success = 0; |
---|
1708 | |
---|
1709 | if (**mangled == '_') |
---|
1710 | { |
---|
1711 | if (mangled[0][1] == 'm') |
---|
1712 | { |
---|
1713 | /* Since consume_count_with_underscores does not handle the |
---|
1714 | `m'-prefix we must do it here, using consume_count and |
---|
1715 | adjusting underscores: we have to consume the underscore |
---|
1716 | matching the prepended one. */ |
---|
1717 | multidigit_without_leading_underscore = 1; |
---|
1718 | string_appendn (s, "-", 1); |
---|
1719 | (*mangled) += 2; |
---|
1720 | } |
---|
1721 | else |
---|
1722 | { |
---|
1723 | /* Do not consume a following underscore; |
---|
1724 | consume_count_with_underscores will consume what |
---|
1725 | should be consumed. */ |
---|
1726 | leave_following_underscore = 1; |
---|
1727 | } |
---|
1728 | } |
---|
1729 | else |
---|
1730 | { |
---|
1731 | /* Negative numbers are indicated with a leading `m'. */ |
---|
1732 | if (**mangled == 'm') |
---|
1733 | { |
---|
1734 | string_appendn (s, "-", 1); |
---|
1735 | (*mangled)++; |
---|
1736 | } |
---|
1737 | /* Since consume_count_with_underscores does not handle |
---|
1738 | multi-digit numbers that do not start with an underscore, |
---|
1739 | and this number can be an integer template parameter, |
---|
1740 | we have to call consume_count. */ |
---|
1741 | multidigit_without_leading_underscore = 1; |
---|
1742 | /* These multi-digit numbers never end on an underscore, |
---|
1743 | so if there is one then don't eat it. */ |
---|
1744 | leave_following_underscore = 1; |
---|
1745 | } |
---|
1746 | |
---|
1747 | /* We must call consume_count if we expect to remove a trailing |
---|
1748 | underscore, since consume_count_with_underscores expects |
---|
1749 | the leading underscore (that we consumed) if it is to handle |
---|
1750 | multi-digit numbers. */ |
---|
1751 | if (multidigit_without_leading_underscore) |
---|
1752 | value = consume_count (mangled); |
---|
1753 | else |
---|
1754 | value = consume_count_with_underscores (mangled); |
---|
1755 | |
---|
1756 | if (value != -1) |
---|
1757 | { |
---|
1758 | char buf[INTBUF_SIZE]; |
---|
1759 | sprintf (buf, "%d", value); |
---|
1760 | string_append (s, buf); |
---|
1761 | |
---|
1762 | /* Numbers not otherwise delimited, might have an underscore |
---|
1763 | appended as a delimeter, which we should skip. |
---|
1764 | |
---|
1765 | ??? This used to always remove a following underscore, which |
---|
1766 | is wrong. If other (arbitrary) cases are followed by an |
---|
1767 | underscore, we need to do something more radical. */ |
---|
1768 | |
---|
1769 | if ((value > 9 || multidigit_without_leading_underscore) |
---|
1770 | && ! leave_following_underscore |
---|
1771 | && **mangled == '_') |
---|
1772 | (*mangled)++; |
---|
1773 | |
---|
1774 | /* All is well. */ |
---|
1775 | success = 1; |
---|
1776 | } |
---|
1777 | } |
---|
1778 | |
---|
1779 | return success; |
---|
1780 | } |
---|
1781 | |
---|
1782 | /* Demangle the real value in MANGLED. */ |
---|
1783 | |
---|
1784 | static int |
---|
1785 | demangle_real_value (struct work_stuff *work, |
---|
1786 | const char **mangled, string *s) |
---|
1787 | { |
---|
1788 | if (**mangled == 'E') |
---|
1789 | return demangle_expression (work, mangled, s, tk_real); |
---|
1790 | |
---|
1791 | if (**mangled == 'm') |
---|
1792 | { |
---|
1793 | string_appendn (s, "-", 1); |
---|
1794 | (*mangled)++; |
---|
1795 | } |
---|
1796 | while (ISDIGIT ((unsigned char)**mangled)) |
---|
1797 | { |
---|
1798 | string_appendn (s, *mangled, 1); |
---|
1799 | (*mangled)++; |
---|
1800 | } |
---|
1801 | if (**mangled == '.') /* fraction */ |
---|
1802 | { |
---|
1803 | string_appendn (s, ".", 1); |
---|
1804 | (*mangled)++; |
---|
1805 | while (ISDIGIT ((unsigned char)**mangled)) |
---|
1806 | { |
---|
1807 | string_appendn (s, *mangled, 1); |
---|
1808 | (*mangled)++; |
---|
1809 | } |
---|
1810 | } |
---|
1811 | if (**mangled == 'e') /* exponent */ |
---|
1812 | { |
---|
1813 | string_appendn (s, "e", 1); |
---|
1814 | (*mangled)++; |
---|
1815 | while (ISDIGIT ((unsigned char)**mangled)) |
---|
1816 | { |
---|
1817 | string_appendn (s, *mangled, 1); |
---|
1818 | (*mangled)++; |
---|
1819 | } |
---|
1820 | } |
---|
1821 | |
---|
1822 | return 1; |
---|
1823 | } |
---|
1824 | |
---|
1825 | static int |
---|
1826 | demangle_template_value_parm (struct work_stuff *work, const char **mangled, |
---|
1827 | string *s, type_kind_t tk) |
---|
1828 | { |
---|
1829 | int success = 1; |
---|
1830 | |
---|
1831 | if (**mangled == 'Y') |
---|
1832 | { |
---|
1833 | /* The next argument is a template parameter. */ |
---|
1834 | int idx; |
---|
1835 | |
---|
1836 | (*mangled)++; |
---|
1837 | idx = consume_count_with_underscores (mangled); |
---|
1838 | if (idx == -1 |
---|
1839 | || (work->tmpl_argvec && idx >= work->ntmpl_args) |
---|
1840 | || consume_count_with_underscores (mangled) == -1) |
---|
1841 | return -1; |
---|
1842 | if (work->tmpl_argvec) |
---|
1843 | string_append (s, work->tmpl_argvec[idx]); |
---|
1844 | else |
---|
1845 | string_append_template_idx (s, idx); |
---|
1846 | } |
---|
1847 | else if (tk == tk_integral) |
---|
1848 | success = demangle_integral_value (work, mangled, s); |
---|
1849 | else if (tk == tk_char) |
---|
1850 | { |
---|
1851 | char tmp[2]; |
---|
1852 | int val; |
---|
1853 | if (**mangled == 'm') |
---|
1854 | { |
---|
1855 | string_appendn (s, "-", 1); |
---|
1856 | (*mangled)++; |
---|
1857 | } |
---|
1858 | string_appendn (s, "'", 1); |
---|
1859 | val = consume_count(mangled); |
---|
1860 | if (val <= 0) |
---|
1861 | success = 0; |
---|
1862 | else |
---|
1863 | { |
---|
1864 | tmp[0] = (char)val; |
---|
1865 | tmp[1] = '\0'; |
---|
1866 | string_appendn (s, &tmp[0], 1); |
---|
1867 | string_appendn (s, "'", 1); |
---|
1868 | } |
---|
1869 | } |
---|
1870 | else if (tk == tk_bool) |
---|
1871 | { |
---|
1872 | int val = consume_count (mangled); |
---|
1873 | if (val == 0) |
---|
1874 | string_appendn (s, "false", 5); |
---|
1875 | else if (val == 1) |
---|
1876 | string_appendn (s, "true", 4); |
---|
1877 | else |
---|
1878 | success = 0; |
---|
1879 | } |
---|
1880 | else if (tk == tk_real) |
---|
1881 | success = demangle_real_value (work, mangled, s); |
---|
1882 | else if (tk == tk_pointer || tk == tk_reference) |
---|
1883 | { |
---|
1884 | if (**mangled == 'Q') |
---|
1885 | success = demangle_qualified (work, mangled, s, |
---|
1886 | /*isfuncname=*/0, |
---|
1887 | /*append=*/1); |
---|
1888 | else |
---|
1889 | { |
---|
1890 | int symbol_len = consume_count (mangled); |
---|
1891 | if (symbol_len == -1) |
---|
1892 | return -1; |
---|
1893 | if (symbol_len == 0) |
---|
1894 | string_appendn (s, "0", 1); |
---|
1895 | else |
---|
1896 | { |
---|
1897 | char *p = XNEWVEC (char, symbol_len + 1), *q; |
---|
1898 | strncpy (p, *mangled, symbol_len); |
---|
1899 | p [symbol_len] = '\0'; |
---|
1900 | /* We use cplus_demangle here, rather than |
---|
1901 | internal_cplus_demangle, because the name of the entity |
---|
1902 | mangled here does not make use of any of the squangling |
---|
1903 | or type-code information we have built up thus far; it is |
---|
1904 | mangled independently. */ |
---|
1905 | q = cplus_demangle (p, work->options); |
---|
1906 | if (tk == tk_pointer) |
---|
1907 | string_appendn (s, "&", 1); |
---|
1908 | /* FIXME: Pointer-to-member constants should get a |
---|
1909 | qualifying class name here. */ |
---|
1910 | if (q) |
---|
1911 | { |
---|
1912 | string_append (s, q); |
---|
1913 | free (q); |
---|
1914 | } |
---|
1915 | else |
---|
1916 | string_append (s, p); |
---|
1917 | free (p); |
---|
1918 | } |
---|
1919 | *mangled += symbol_len; |
---|
1920 | } |
---|
1921 | } |
---|
1922 | |
---|
1923 | return success; |
---|
1924 | } |
---|
1925 | |
---|
1926 | /* Demangle the template name in MANGLED. The full name of the |
---|
1927 | template (e.g., S<int>) is placed in TNAME. The name without the |
---|
1928 | template parameters (e.g. S) is placed in TRAWNAME if TRAWNAME is |
---|
1929 | non-NULL. If IS_TYPE is nonzero, this template is a type template, |
---|
1930 | not a function template. If both IS_TYPE and REMEMBER are nonzero, |
---|
1931 | the template is remembered in the list of back-referenceable |
---|
1932 | types. */ |
---|
1933 | |
---|
1934 | static int |
---|
1935 | demangle_template (struct work_stuff *work, const char **mangled, |
---|
1936 | string *tname, string *trawname, |
---|
1937 | int is_type, int remember) |
---|
1938 | { |
---|
1939 | int i; |
---|
1940 | int r; |
---|
1941 | int need_comma = 0; |
---|
1942 | int success = 0; |
---|
1943 | int is_java_array = 0; |
---|
1944 | string temp; |
---|
1945 | |
---|
1946 | (*mangled)++; |
---|
1947 | if (is_type) |
---|
1948 | { |
---|
1949 | /* get template name */ |
---|
1950 | if (**mangled == 'z') |
---|
1951 | { |
---|
1952 | int idx; |
---|
1953 | (*mangled)++; |
---|
1954 | (*mangled)++; |
---|
1955 | |
---|
1956 | idx = consume_count_with_underscores (mangled); |
---|
1957 | if (idx == -1 |
---|
1958 | || (work->tmpl_argvec && idx >= work->ntmpl_args) |
---|
1959 | || consume_count_with_underscores (mangled) == -1) |
---|
1960 | return (0); |
---|
1961 | |
---|
1962 | if (work->tmpl_argvec) |
---|
1963 | { |
---|
1964 | string_append (tname, work->tmpl_argvec[idx]); |
---|
1965 | if (trawname) |
---|
1966 | string_append (trawname, work->tmpl_argvec[idx]); |
---|
1967 | } |
---|
1968 | else |
---|
1969 | { |
---|
1970 | string_append_template_idx (tname, idx); |
---|
1971 | if (trawname) |
---|
1972 | string_append_template_idx (trawname, idx); |
---|
1973 | } |
---|
1974 | } |
---|
1975 | else |
---|
1976 | { |
---|
1977 | if ((r = consume_count (mangled)) <= 0 |
---|
1978 | || (int) strlen (*mangled) < r) |
---|
1979 | { |
---|
1980 | return (0); |
---|
1981 | } |
---|
1982 | is_java_array = (work -> options & DMGL_JAVA) |
---|
1983 | && strncmp (*mangled, "JArray1Z", 8) == 0; |
---|
1984 | if (! is_java_array) |
---|
1985 | { |
---|
1986 | string_appendn (tname, *mangled, r); |
---|
1987 | } |
---|
1988 | if (trawname) |
---|
1989 | string_appendn (trawname, *mangled, r); |
---|
1990 | *mangled += r; |
---|
1991 | } |
---|
1992 | } |
---|
1993 | if (!is_java_array) |
---|
1994 | string_append (tname, "<"); |
---|
1995 | /* get size of template parameter list */ |
---|
1996 | if (!get_count (mangled, &r)) |
---|
1997 | { |
---|
1998 | return (0); |
---|
1999 | } |
---|
2000 | if (!is_type) |
---|
2001 | { |
---|
2002 | /* Create an array for saving the template argument values. */ |
---|
2003 | work->tmpl_argvec = XNEWVEC (char *, r); |
---|
2004 | work->ntmpl_args = r; |
---|
2005 | for (i = 0; i < r; i++) |
---|
2006 | work->tmpl_argvec[i] = 0; |
---|
2007 | } |
---|
2008 | for (i = 0; i < r; i++) |
---|
2009 | { |
---|
2010 | if (need_comma) |
---|
2011 | { |
---|
2012 | string_append (tname, ", "); |
---|
2013 | } |
---|
2014 | /* Z for type parameters */ |
---|
2015 | if (**mangled == 'Z') |
---|
2016 | { |
---|
2017 | (*mangled)++; |
---|
2018 | /* temp is initialized in do_type */ |
---|
2019 | success = do_type (work, mangled, &temp); |
---|
2020 | if (success) |
---|
2021 | { |
---|
2022 | string_appends (tname, &temp); |
---|
2023 | |
---|
2024 | if (!is_type) |
---|
2025 | { |
---|
2026 | /* Save the template argument. */ |
---|
2027 | int len = temp.p - temp.b; |
---|
2028 | work->tmpl_argvec[i] = XNEWVEC (char, len + 1); |
---|
2029 | memcpy (work->tmpl_argvec[i], temp.b, len); |
---|
2030 | work->tmpl_argvec[i][len] = '\0'; |
---|
2031 | } |
---|
2032 | } |
---|
2033 | string_delete(&temp); |
---|
2034 | if (!success) |
---|
2035 | { |
---|
2036 | break; |
---|
2037 | } |
---|
2038 | } |
---|
2039 | /* z for template parameters */ |
---|
2040 | else if (**mangled == 'z') |
---|
2041 | { |
---|
2042 | int r2; |
---|
2043 | (*mangled)++; |
---|
2044 | success = demangle_template_template_parm (work, mangled, tname); |
---|
2045 | |
---|
2046 | if (success |
---|
2047 | && (r2 = consume_count (mangled)) > 0 |
---|
2048 | && (int) strlen (*mangled) >= r2) |
---|
2049 | { |
---|
2050 | string_append (tname, " "); |
---|
2051 | string_appendn (tname, *mangled, r2); |
---|
2052 | if (!is_type) |
---|
2053 | { |
---|
2054 | /* Save the template argument. */ |
---|
2055 | int len = r2; |
---|
2056 | work->tmpl_argvec[i] = XNEWVEC (char, len + 1); |
---|
2057 | memcpy (work->tmpl_argvec[i], *mangled, len); |
---|
2058 | work->tmpl_argvec[i][len] = '\0'; |
---|
2059 | } |
---|
2060 | *mangled += r2; |
---|
2061 | } |
---|
2062 | if (!success) |
---|
2063 | { |
---|
2064 | break; |
---|
2065 | } |
---|
2066 | } |
---|
2067 | else |
---|
2068 | { |
---|
2069 | string param; |
---|
2070 | string* s; |
---|
2071 | |
---|
2072 | /* otherwise, value parameter */ |
---|
2073 | |
---|
2074 | /* temp is initialized in do_type */ |
---|
2075 | success = do_type (work, mangled, &temp); |
---|
2076 | string_delete(&temp); |
---|
2077 | if (!success) |
---|
2078 | break; |
---|
2079 | |
---|
2080 | if (!is_type) |
---|
2081 | { |
---|
2082 | s = ¶m; |
---|
2083 | string_init (s); |
---|
2084 | } |
---|
2085 | else |
---|
2086 | s = tname; |
---|
2087 | |
---|
2088 | success = demangle_template_value_parm (work, mangled, s, |
---|
2089 | (type_kind_t) success); |
---|
2090 | |
---|
2091 | if (!success) |
---|
2092 | { |
---|
2093 | if (!is_type) |
---|
2094 | string_delete (s); |
---|
2095 | success = 0; |
---|
2096 | break; |
---|
2097 | } |
---|
2098 | |
---|
2099 | if (!is_type) |
---|
2100 | { |
---|
2101 | int len = s->p - s->b; |
---|
2102 | work->tmpl_argvec[i] = XNEWVEC (char, len + 1); |
---|
2103 | memcpy (work->tmpl_argvec[i], s->b, len); |
---|
2104 | work->tmpl_argvec[i][len] = '\0'; |
---|
2105 | |
---|
2106 | string_appends (tname, s); |
---|
2107 | string_delete (s); |
---|
2108 | } |
---|
2109 | } |
---|
2110 | need_comma = 1; |
---|
2111 | } |
---|
2112 | if (is_java_array) |
---|
2113 | { |
---|
2114 | string_append (tname, "[]"); |
---|
2115 | } |
---|
2116 | else |
---|
2117 | { |
---|
2118 | if (tname->p[-1] == '>') |
---|
2119 | string_append (tname, " "); |
---|
2120 | string_append (tname, ">"); |
---|
2121 | } |
---|
2122 | |
---|
2123 | if (is_type && remember) |
---|
2124 | { |
---|
2125 | const int bindex = register_Btype (work); |
---|
2126 | remember_Btype (work, tname->b, LEN_STRING (tname), bindex); |
---|
2127 | } |
---|
2128 | |
---|
2129 | /* |
---|
2130 | if (work -> static_type) |
---|
2131 | { |
---|
2132 | string_append (declp, *mangled + 1); |
---|
2133 | *mangled += strlen (*mangled); |
---|
2134 | success = 1; |
---|
2135 | } |
---|
2136 | else |
---|
2137 | { |
---|
2138 | success = demangle_args (work, mangled, declp); |
---|
2139 | } |
---|
2140 | } |
---|
2141 | */ |
---|
2142 | return (success); |
---|
2143 | } |
---|
2144 | |
---|
2145 | static int |
---|
2146 | arm_pt (struct work_stuff *work, const char *mangled, |
---|
2147 | int n, const char **anchor, const char **args) |
---|
2148 | { |
---|
2149 | /* Check if ARM template with "__pt__" in it ("parameterized type") */ |
---|
2150 | /* Allow HP also here, because HP's cfront compiler follows ARM to some extent */ |
---|
2151 | if ((ARM_DEMANGLING || HP_DEMANGLING) && (*anchor = strstr (mangled, "__pt__"))) |
---|
2152 | { |
---|
2153 | int len; |
---|
2154 | *args = *anchor + 6; |
---|
2155 | len = consume_count (args); |
---|
2156 | if (len == -1) |
---|
2157 | return 0; |
---|
2158 | if (*args + len == mangled + n && **args == '_') |
---|
2159 | { |
---|
2160 | ++*args; |
---|
2161 | return 1; |
---|
2162 | } |
---|
2163 | } |
---|
2164 | if (AUTO_DEMANGLING || EDG_DEMANGLING) |
---|
2165 | { |
---|
2166 | if ((*anchor = strstr (mangled, "__tm__")) |
---|
2167 | || (*anchor = strstr (mangled, "__ps__")) |
---|
2168 | || (*anchor = strstr (mangled, "__pt__"))) |
---|
2169 | { |
---|
2170 | int len; |
---|
2171 | *args = *anchor + 6; |
---|
2172 | len = consume_count (args); |
---|
2173 | if (len == -1) |
---|
2174 | return 0; |
---|
2175 | if (*args + len == mangled + n && **args == '_') |
---|
2176 | { |
---|
2177 | ++*args; |
---|
2178 | return 1; |
---|
2179 | } |
---|
2180 | } |
---|
2181 | else if ((*anchor = strstr (mangled, "__S"))) |
---|
2182 | { |
---|
2183 | int len; |
---|
2184 | *args = *anchor + 3; |
---|
2185 | len = consume_count (args); |
---|
2186 | if (len == -1) |
---|
2187 | return 0; |
---|
2188 | if (*args + len == mangled + n && **args == '_') |
---|
2189 | { |
---|
2190 | ++*args; |
---|
2191 | return 1; |
---|
2192 | } |
---|
2193 | } |
---|
2194 | } |
---|
2195 | |
---|
2196 | return 0; |
---|
2197 | } |
---|
2198 | |
---|
2199 | static void |
---|
2200 | demangle_arm_hp_template (struct work_stuff *work, const char **mangled, |
---|
2201 | int n, string *declp) |
---|
2202 | { |
---|
2203 | const char *p; |
---|
2204 | const char *args; |
---|
2205 | const char *e = *mangled + n; |
---|
2206 | string arg; |
---|
2207 | |
---|
2208 | /* Check for HP aCC template spec: classXt1t2 where t1, t2 are |
---|
2209 | template args */ |
---|
2210 | if (HP_DEMANGLING && ((*mangled)[n] == 'X')) |
---|
2211 | { |
---|
2212 | char *start_spec_args = NULL; |
---|
2213 | int hold_options; |
---|
2214 | |
---|
2215 | /* First check for and omit template specialization pseudo-arguments, |
---|
2216 | such as in "Spec<#1,#1.*>" */ |
---|
2217 | start_spec_args = strchr (*mangled, '<'); |
---|
2218 | if (start_spec_args && (start_spec_args - *mangled < n)) |
---|
2219 | string_appendn (declp, *mangled, start_spec_args - *mangled); |
---|
2220 | else |
---|
2221 | string_appendn (declp, *mangled, n); |
---|
2222 | (*mangled) += n + 1; |
---|
2223 | string_init (&arg); |
---|
2224 | if (work->temp_start == -1) /* non-recursive call */ |
---|
2225 | work->temp_start = declp->p - declp->b; |
---|
2226 | |
---|
2227 | /* We want to unconditionally demangle parameter types in |
---|
2228 | template parameters. */ |
---|
2229 | hold_options = work->options; |
---|
2230 | work->options |= DMGL_PARAMS; |
---|
2231 | |
---|
2232 | string_append (declp, "<"); |
---|
2233 | while (1) |
---|
2234 | { |
---|
2235 | string_delete (&arg); |
---|
2236 | switch (**mangled) |
---|
2237 | { |
---|
2238 | case 'T': |
---|
2239 | /* 'T' signals a type parameter */ |
---|
2240 | (*mangled)++; |
---|
2241 | if (!do_type (work, mangled, &arg)) |
---|
2242 | goto hpacc_template_args_done; |
---|
2243 | break; |
---|
2244 | |
---|
2245 | case 'U': |
---|
2246 | case 'S': |
---|
2247 | /* 'U' or 'S' signals an integral value */ |
---|
2248 | if (!do_hpacc_template_const_value (work, mangled, &arg)) |
---|
2249 | goto hpacc_template_args_done; |
---|
2250 | break; |
---|
2251 | |
---|
2252 | case 'A': |
---|
2253 | /* 'A' signals a named constant expression (literal) */ |
---|
2254 | if (!do_hpacc_template_literal (work, mangled, &arg)) |
---|
2255 | goto hpacc_template_args_done; |
---|
2256 | break; |
---|
2257 | |
---|
2258 | default: |
---|
2259 | /* Today, 1997-09-03, we have only the above types |
---|
2260 | of template parameters */ |
---|
2261 | /* FIXME: maybe this should fail and return null */ |
---|
2262 | goto hpacc_template_args_done; |
---|
2263 | } |
---|
2264 | string_appends (declp, &arg); |
---|
2265 | /* Check if we're at the end of template args. |
---|
2266 | 0 if at end of static member of template class, |
---|
2267 | _ if done with template args for a function */ |
---|
2268 | if ((**mangled == '\000') || (**mangled == '_')) |
---|
2269 | break; |
---|
2270 | else |
---|
2271 | string_append (declp, ","); |
---|
2272 | } |
---|
2273 | hpacc_template_args_done: |
---|
2274 | string_append (declp, ">"); |
---|
2275 | string_delete (&arg); |
---|
2276 | if (**mangled == '_') |
---|
2277 | (*mangled)++; |
---|
2278 | work->options = hold_options; |
---|
2279 | return; |
---|
2280 | } |
---|
2281 | /* ARM template? (Also handles HP cfront extensions) */ |
---|
2282 | else if (arm_pt (work, *mangled, n, &p, &args)) |
---|
2283 | { |
---|
2284 | int hold_options; |
---|
2285 | string type_str; |
---|
2286 | |
---|
2287 | string_init (&arg); |
---|
2288 | string_appendn (declp, *mangled, p - *mangled); |
---|
2289 | if (work->temp_start == -1) /* non-recursive call */ |
---|
2290 | work->temp_start = declp->p - declp->b; |
---|
2291 | |
---|
2292 | /* We want to unconditionally demangle parameter types in |
---|
2293 | template parameters. */ |
---|
2294 | hold_options = work->options; |
---|
2295 | work->options |= DMGL_PARAMS; |
---|
2296 | |
---|
2297 | string_append (declp, "<"); |
---|
2298 | /* should do error checking here */ |
---|
2299 | while (args < e) { |
---|
2300 | string_delete (&arg); |
---|
2301 | |
---|
2302 | /* Check for type or literal here */ |
---|
2303 | switch (*args) |
---|
2304 | { |
---|
2305 | /* HP cfront extensions to ARM for template args */ |
---|
2306 | /* spec: Xt1Lv1 where t1 is a type, v1 is a literal value */ |
---|
2307 | /* FIXME: We handle only numeric literals for HP cfront */ |
---|
2308 | case 'X': |
---|
2309 | /* A typed constant value follows */ |
---|
2310 | args++; |
---|
2311 | if (!do_type (work, &args, &type_str)) |
---|
2312 | goto cfront_template_args_done; |
---|
2313 | string_append (&arg, "("); |
---|
2314 | string_appends (&arg, &type_str); |
---|
2315 | string_delete (&type_str); |
---|
2316 | string_append (&arg, ")"); |
---|
2317 | if (*args != 'L') |
---|
2318 | goto cfront_template_args_done; |
---|
2319 | args++; |
---|
2320 | /* Now snarf a literal value following 'L' */ |
---|
2321 | if (!snarf_numeric_literal (&args, &arg)) |
---|
2322 | goto cfront_template_args_done; |
---|
2323 | break; |
---|
2324 | |
---|
2325 | case 'L': |
---|
2326 | /* Snarf a literal following 'L' */ |
---|
2327 | args++; |
---|
2328 | if (!snarf_numeric_literal (&args, &arg)) |
---|
2329 | goto cfront_template_args_done; |
---|
2330 | break; |
---|
2331 | default: |
---|
2332 | /* Not handling other HP cfront stuff */ |
---|
2333 | { |
---|
2334 | const char* old_args = args; |
---|
2335 | if (!do_type (work, &args, &arg)) |
---|
2336 | goto cfront_template_args_done; |
---|
2337 | |
---|
2338 | /* Fail if we didn't make any progress: prevent infinite loop. */ |
---|
2339 | if (args == old_args) |
---|
2340 | { |
---|
2341 | work->options = hold_options; |
---|
2342 | return; |
---|
2343 | } |
---|
2344 | } |
---|
2345 | } |
---|
2346 | string_appends (declp, &arg); |
---|
2347 | string_append (declp, ","); |
---|
2348 | } |
---|
2349 | cfront_template_args_done: |
---|
2350 | string_delete (&arg); |
---|
2351 | if (args >= e) |
---|
2352 | --declp->p; /* remove extra comma */ |
---|
2353 | string_append (declp, ">"); |
---|
2354 | work->options = hold_options; |
---|
2355 | } |
---|
2356 | else if (n>10 && strncmp (*mangled, "_GLOBAL_", 8) == 0 |
---|
2357 | && (*mangled)[9] == 'N' |
---|
2358 | && (*mangled)[8] == (*mangled)[10] |
---|
2359 | && strchr (cplus_markers, (*mangled)[8])) |
---|
2360 | { |
---|
2361 | /* A member of the anonymous namespace. */ |
---|
2362 | string_append (declp, "{anonymous}"); |
---|
2363 | } |
---|
2364 | else |
---|
2365 | { |
---|
2366 | if (work->temp_start == -1) /* non-recursive call only */ |
---|
2367 | work->temp_start = 0; /* disable in recursive calls */ |
---|
2368 | string_appendn (declp, *mangled, n); |
---|
2369 | } |
---|
2370 | *mangled += n; |
---|
2371 | } |
---|
2372 | |
---|
2373 | /* Extract a class name, possibly a template with arguments, from the |
---|
2374 | mangled string; qualifiers, local class indicators, etc. have |
---|
2375 | already been dealt with */ |
---|
2376 | |
---|
2377 | static int |
---|
2378 | demangle_class_name (struct work_stuff *work, const char **mangled, |
---|
2379 | string *declp) |
---|
2380 | { |
---|
2381 | int n; |
---|
2382 | int success = 0; |
---|
2383 | |
---|
2384 | n = consume_count (mangled); |
---|
2385 | if (n == -1) |
---|
2386 | return 0; |
---|
2387 | if ((int) strlen (*mangled) >= n) |
---|
2388 | { |
---|
2389 | demangle_arm_hp_template (work, mangled, n, declp); |
---|
2390 | success = 1; |
---|
2391 | } |
---|
2392 | |
---|
2393 | return (success); |
---|
2394 | } |
---|
2395 | |
---|
2396 | /* |
---|
2397 | |
---|
2398 | LOCAL FUNCTION |
---|
2399 | |
---|
2400 | demangle_class -- demangle a mangled class sequence |
---|
2401 | |
---|
2402 | SYNOPSIS |
---|
2403 | |
---|
2404 | static int |
---|
2405 | demangle_class (struct work_stuff *work, const char **mangled, |
---|
2406 | strint *declp) |
---|
2407 | |
---|
2408 | DESCRIPTION |
---|
2409 | |
---|
2410 | DECLP points to the buffer into which demangling is being done. |
---|
2411 | |
---|
2412 | *MANGLED points to the current token to be demangled. On input, |
---|
2413 | it points to a mangled class (I.E. "3foo", "13verylongclass", etc.) |
---|
2414 | On exit, it points to the next token after the mangled class on |
---|
2415 | success, or the first unconsumed token on failure. |
---|
2416 | |
---|
2417 | If the CONSTRUCTOR or DESTRUCTOR flags are set in WORK, then |
---|
2418 | we are demangling a constructor or destructor. In this case |
---|
2419 | we prepend "class::class" or "class::~class" to DECLP. |
---|
2420 | |
---|
2421 | Otherwise, we prepend "class::" to the current DECLP. |
---|
2422 | |
---|
2423 | Reset the constructor/destructor flags once they have been |
---|
2424 | "consumed". This allows demangle_class to be called later during |
---|
2425 | the same demangling, to do normal class demangling. |
---|
2426 | |
---|
2427 | Returns 1 if demangling is successful, 0 otherwise. |
---|
2428 | |
---|
2429 | */ |
---|
2430 | |
---|
2431 | static int |
---|
2432 | demangle_class (struct work_stuff *work, const char **mangled, string *declp) |
---|
2433 | { |
---|
2434 | int success = 0; |
---|
2435 | int btype; |
---|
2436 | string class_name; |
---|
2437 | char *save_class_name_end = 0; |
---|
2438 | |
---|
2439 | string_init (&class_name); |
---|
2440 | btype = register_Btype (work); |
---|
2441 | if (demangle_class_name (work, mangled, &class_name)) |
---|
2442 | { |
---|
2443 | save_class_name_end = class_name.p; |
---|
2444 | if ((work->constructor & 1) || (work->destructor & 1)) |
---|
2445 | { |
---|
2446 | /* adjust so we don't include template args */ |
---|
2447 | if (work->temp_start && (work->temp_start != -1)) |
---|
2448 | { |
---|
2449 | class_name.p = class_name.b + work->temp_start; |
---|
2450 | } |
---|
2451 | string_prepends (declp, &class_name); |
---|
2452 | if (work -> destructor & 1) |
---|
2453 | { |
---|
2454 | string_prepend (declp, "~"); |
---|
2455 | work -> destructor -= 1; |
---|
2456 | } |
---|
2457 | else |
---|
2458 | { |
---|
2459 | work -> constructor -= 1; |
---|
2460 | } |
---|
2461 | } |
---|
2462 | class_name.p = save_class_name_end; |
---|
2463 | remember_Ktype (work, class_name.b, LEN_STRING(&class_name)); |
---|
2464 | remember_Btype (work, class_name.b, LEN_STRING(&class_name), btype); |
---|
2465 | string_prepend (declp, SCOPE_STRING (work)); |
---|
2466 | string_prepends (declp, &class_name); |
---|
2467 | success = 1; |
---|
2468 | } |
---|
2469 | string_delete (&class_name); |
---|
2470 | return (success); |
---|
2471 | } |
---|
2472 | |
---|
2473 | |
---|
2474 | /* Called when there's a "__" in the mangled name, with `scan' pointing to |
---|
2475 | the rightmost guess. |
---|
2476 | |
---|
2477 | Find the correct "__"-sequence where the function name ends and the |
---|
2478 | signature starts, which is ambiguous with GNU mangling. |
---|
2479 | Call demangle_signature here, so we can make sure we found the right |
---|
2480 | one; *mangled will be consumed so caller will not make further calls to |
---|
2481 | demangle_signature. */ |
---|
2482 | |
---|
2483 | static int |
---|
2484 | iterate_demangle_function (struct work_stuff *work, const char **mangled, |
---|
2485 | string *declp, const char *scan) |
---|
2486 | { |
---|
2487 | const char *mangle_init = *mangled; |
---|
2488 | int success = 0; |
---|
2489 | string decl_init; |
---|
2490 | struct work_stuff work_init; |
---|
2491 | |
---|
2492 | if (*(scan + 2) == '\0') |
---|
2493 | return 0; |
---|
2494 | |
---|
2495 | /* Do not iterate for some demangling modes, or if there's only one |
---|
2496 | "__"-sequence. This is the normal case. */ |
---|
2497 | if (ARM_DEMANGLING || LUCID_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING |
---|
2498 | || strstr (scan + 2, "__") == NULL) |
---|
2499 | return demangle_function_name (work, mangled, declp, scan); |
---|
2500 | |
---|
2501 | /* Save state so we can restart if the guess at the correct "__" was |
---|
2502 | wrong. */ |
---|
2503 | string_init (&decl_init); |
---|
2504 | string_appends (&decl_init, declp); |
---|
2505 | memset (&work_init, 0, sizeof work_init); |
---|
2506 | work_stuff_copy_to_from (&work_init, work); |
---|
2507 | |
---|
2508 | /* Iterate over occurrences of __, allowing names and types to have a |
---|
2509 | "__" sequence in them. We must start with the first (not the last) |
---|
2510 | occurrence, since "__" most often occur between independent mangled |
---|
2511 | parts, hence starting at the last occurence inside a signature |
---|
2512 | might get us a "successful" demangling of the signature. */ |
---|
2513 | |
---|
2514 | while (scan[2]) |
---|
2515 | { |
---|
2516 | if (demangle_function_name (work, mangled, declp, scan)) |
---|
2517 | { |
---|
2518 | success = demangle_signature (work, mangled, declp); |
---|
2519 | if (success) |
---|
2520 | break; |
---|
2521 | } |
---|
2522 | |
---|
2523 | /* Reset demangle state for the next round. */ |
---|
2524 | *mangled = mangle_init; |
---|
2525 | string_clear (declp); |
---|
2526 | string_appends (declp, &decl_init); |
---|
2527 | work_stuff_copy_to_from (work, &work_init); |
---|
2528 | |
---|
2529 | /* Leave this underscore-sequence. */ |
---|
2530 | scan += 2; |
---|
2531 | |
---|
2532 | /* Scan for the next "__" sequence. */ |
---|
2533 | while (*scan && (scan[0] != '_' || scan[1] != '_')) |
---|
2534 | scan++; |
---|
2535 | |
---|
2536 | /* Move to last "__" in this sequence. */ |
---|
2537 | while (*scan && *scan == '_') |
---|
2538 | scan++; |
---|
2539 | scan -= 2; |
---|
2540 | } |
---|
2541 | |
---|
2542 | /* Delete saved state. */ |
---|
2543 | delete_work_stuff (&work_init); |
---|
2544 | string_delete (&decl_init); |
---|
2545 | |
---|
2546 | return success; |
---|
2547 | } |
---|
2548 | |
---|
2549 | /* |
---|
2550 | |
---|
2551 | LOCAL FUNCTION |
---|
2552 | |
---|
2553 | demangle_prefix -- consume the mangled name prefix and find signature |
---|
2554 | |
---|
2555 | SYNOPSIS |
---|
2556 | |
---|
2557 | static int |
---|
2558 | demangle_prefix (struct work_stuff *work, const char **mangled, |
---|
2559 | string *declp); |
---|
2560 | |
---|
2561 | DESCRIPTION |
---|
2562 | |
---|
2563 | Consume and demangle the prefix of the mangled name. |
---|
2564 | While processing the function name root, arrange to call |
---|
2565 | demangle_signature if the root is ambiguous. |
---|
2566 | |
---|
2567 | DECLP points to the string buffer into which demangled output is |
---|
2568 | placed. On entry, the buffer is empty. On exit it contains |
---|
2569 | the root function name, the demangled operator name, or in some |
---|
2570 | special cases either nothing or the completely demangled result. |
---|
2571 | |
---|
2572 | MANGLED points to the current pointer into the mangled name. As each |
---|
2573 | token of the mangled name is consumed, it is updated. Upon entry |
---|
2574 | the current mangled name pointer points to the first character of |
---|
2575 | the mangled name. Upon exit, it should point to the first character |
---|
2576 | of the signature if demangling was successful, or to the first |
---|
2577 | unconsumed character if demangling of the prefix was unsuccessful. |
---|
2578 | |
---|
2579 | Returns 1 on success, 0 otherwise. |
---|
2580 | */ |
---|
2581 | |
---|
2582 | static int |
---|
2583 | demangle_prefix (struct work_stuff *work, const char **mangled, |
---|
2584 | string *declp) |
---|
2585 | { |
---|
2586 | int success = 1; |
---|
2587 | const char *scan; |
---|
2588 | int i; |
---|
2589 | |
---|
2590 | if (strlen(*mangled) > 6 |
---|
2591 | && (strncmp(*mangled, "_imp__", 6) == 0 |
---|
2592 | || strncmp(*mangled, "__imp_", 6) == 0)) |
---|
2593 | { |
---|
2594 | /* it's a symbol imported from a PE dynamic library. Check for both |
---|
2595 | new style prefix _imp__ and legacy __imp_ used by older versions |
---|
2596 | of dlltool. */ |
---|
2597 | (*mangled) += 6; |
---|
2598 | work->dllimported = 1; |
---|
2599 | } |
---|
2600 | else if (strlen(*mangled) >= 11 && strncmp(*mangled, "_GLOBAL_", 8) == 0) |
---|
2601 | { |
---|
2602 | char *marker = strchr (cplus_markers, (*mangled)[8]); |
---|
2603 | if (marker != NULL && *marker == (*mangled)[10]) |
---|
2604 | { |
---|
2605 | if ((*mangled)[9] == 'D') |
---|
2606 | { |
---|
2607 | /* it's a GNU global destructor to be executed at program exit */ |
---|
2608 | (*mangled) += 11; |
---|
2609 | work->destructor = 2; |
---|
2610 | if (gnu_special (work, mangled, declp)) |
---|
2611 | return success; |
---|
2612 | } |
---|
2613 | else if ((*mangled)[9] == 'I') |
---|
2614 | { |
---|
2615 | /* it's a GNU global constructor to be executed at program init */ |
---|
2616 | (*mangled) += 11; |
---|
2617 | work->constructor = 2; |
---|
2618 | if (gnu_special (work, mangled, declp)) |
---|
2619 | return success; |
---|
2620 | } |
---|
2621 | } |
---|
2622 | } |
---|
2623 | else if ((ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) && strncmp(*mangled, "__std__", 7) == 0) |
---|
2624 | { |
---|
2625 | /* it's a ARM global destructor to be executed at program exit */ |
---|
2626 | (*mangled) += 7; |
---|
2627 | work->destructor = 2; |
---|
2628 | } |
---|
2629 | else if ((ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) && strncmp(*mangled, "__sti__", 7) == 0) |
---|
2630 | { |
---|
2631 | /* it's a ARM global constructor to be executed at program initial */ |
---|
2632 | (*mangled) += 7; |
---|
2633 | work->constructor = 2; |
---|
2634 | } |
---|
2635 | |
---|
2636 | /* This block of code is a reduction in strength time optimization |
---|
2637 | of: |
---|
2638 | scan = strstr (*mangled, "__"); */ |
---|
2639 | |
---|
2640 | { |
---|
2641 | scan = *mangled; |
---|
2642 | |
---|
2643 | do { |
---|
2644 | scan = strchr (scan, '_'); |
---|
2645 | } while (scan != NULL && *++scan != '_'); |
---|
2646 | |
---|
2647 | if (scan != NULL) --scan; |
---|
2648 | } |
---|
2649 | |
---|
2650 | if (scan != NULL) |
---|
2651 | { |
---|
2652 | /* We found a sequence of two or more '_', ensure that we start at |
---|
2653 | the last pair in the sequence. */ |
---|
2654 | i = strspn (scan, "_"); |
---|
2655 | if (i > 2) |
---|
2656 | { |
---|
2657 | scan += (i - 2); |
---|
2658 | } |
---|
2659 | } |
---|
2660 | |
---|
2661 | if (scan == NULL) |
---|
2662 | { |
---|
2663 | success = 0; |
---|
2664 | } |
---|
2665 | else if (work -> static_type) |
---|
2666 | { |
---|
2667 | if (!ISDIGIT ((unsigned char)scan[0]) && (scan[0] != 't')) |
---|
2668 | { |
---|
2669 | success = 0; |
---|
2670 | } |
---|
2671 | } |
---|
2672 | else if ((scan == *mangled) |
---|
2673 | && (ISDIGIT ((unsigned char)scan[2]) || (scan[2] == 'Q') |
---|
2674 | || (scan[2] == 't') || (scan[2] == 'K') || (scan[2] == 'H'))) |
---|
2675 | { |
---|
2676 | /* The ARM says nothing about the mangling of local variables. |
---|
2677 | But cfront mangles local variables by prepending __<nesting_level> |
---|
2678 | to them. As an extension to ARM demangling we handle this case. */ |
---|
2679 | if ((LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING) |
---|
2680 | && ISDIGIT ((unsigned char)scan[2])) |
---|
2681 | { |
---|
2682 | *mangled = scan + 2; |
---|
2683 | consume_count (mangled); |
---|
2684 | string_append (declp, *mangled); |
---|
2685 | *mangled += strlen (*mangled); |
---|
2686 | success = 1; |
---|
2687 | } |
---|
2688 | else |
---|
2689 | { |
---|
2690 | /* A GNU style constructor starts with __[0-9Qt]. But cfront uses |
---|
2691 | names like __Q2_3foo3bar for nested type names. So don't accept |
---|
2692 | this style of constructor for cfront demangling. A GNU |
---|
2693 | style member-template constructor starts with 'H'. */ |
---|
2694 | if (!(LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING)) |
---|
2695 | work -> constructor += 1; |
---|
2696 | *mangled = scan + 2; |
---|
2697 | } |
---|
2698 | } |
---|
2699 | else if (ARM_DEMANGLING && scan[2] == 'p' && scan[3] == 't') |
---|
2700 | { |
---|
2701 | /* Cfront-style parameterized type. Handled later as a signature. */ |
---|
2702 | success = 1; |
---|
2703 | |
---|
2704 | /* ARM template? */ |
---|
2705 | demangle_arm_hp_template (work, mangled, strlen (*mangled), declp); |
---|
2706 | } |
---|
2707 | else if (EDG_DEMANGLING && ((scan[2] == 't' && scan[3] == 'm') |
---|
2708 | || (scan[2] == 'p' && scan[3] == 's') |
---|
2709 | || (scan[2] == 'p' && scan[3] == 't'))) |
---|
2710 | { |
---|
2711 | /* EDG-style parameterized type. Handled later as a signature. */ |
---|
2712 | success = 1; |
---|
2713 | |
---|
2714 | /* EDG template? */ |
---|
2715 | demangle_arm_hp_template (work, mangled, strlen (*mangled), declp); |
---|
2716 | } |
---|
2717 | else if ((scan == *mangled) && !ISDIGIT ((unsigned char)scan[2]) |
---|
2718 | && (scan[2] != 't')) |
---|
2719 | { |
---|
2720 | /* Mangled name starts with "__". Skip over any leading '_' characters, |
---|
2721 | then find the next "__" that separates the prefix from the signature. |
---|
2722 | */ |
---|
2723 | if (!(ARM_DEMANGLING || LUCID_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
---|
2724 | || (arm_special (mangled, declp) == 0)) |
---|
2725 | { |
---|
2726 | while (*scan == '_') |
---|
2727 | { |
---|
2728 | scan++; |
---|
2729 | } |
---|
2730 | if ((scan = strstr (scan, "__")) == NULL || (*(scan + 2) == '\0')) |
---|
2731 | { |
---|
2732 | /* No separator (I.E. "__not_mangled"), or empty signature |
---|
2733 | (I.E. "__not_mangled_either__") */ |
---|
2734 | success = 0; |
---|
2735 | } |
---|
2736 | else |
---|
2737 | return iterate_demangle_function (work, mangled, declp, scan); |
---|
2738 | } |
---|
2739 | } |
---|
2740 | else if (*(scan + 2) != '\0') |
---|
2741 | { |
---|
2742 | /* Mangled name does not start with "__" but does have one somewhere |
---|
2743 | in there with non empty stuff after it. Looks like a global |
---|
2744 | function name. Iterate over all "__":s until the right |
---|
2745 | one is found. */ |
---|
2746 | return iterate_demangle_function (work, mangled, declp, scan); |
---|
2747 | } |
---|
2748 | else |
---|
2749 | { |
---|
2750 | /* Doesn't look like a mangled name */ |
---|
2751 | success = 0; |
---|
2752 | } |
---|
2753 | |
---|
2754 | if (!success && (work->constructor == 2 || work->destructor == 2)) |
---|
2755 | { |
---|
2756 | string_append (declp, *mangled); |
---|
2757 | *mangled += strlen (*mangled); |
---|
2758 | success = 1; |
---|
2759 | } |
---|
2760 | return (success); |
---|
2761 | } |
---|
2762 | |
---|
2763 | /* |
---|
2764 | |
---|
2765 | LOCAL FUNCTION |
---|
2766 | |
---|
2767 | gnu_special -- special handling of gnu mangled strings |
---|
2768 | |
---|
2769 | SYNOPSIS |
---|
2770 | |
---|
2771 | static int |
---|
2772 | gnu_special (struct work_stuff *work, const char **mangled, |
---|
2773 | string *declp); |
---|
2774 | |
---|
2775 | |
---|
2776 | DESCRIPTION |
---|
2777 | |
---|
2778 | Process some special GNU style mangling forms that don't fit |
---|
2779 | the normal pattern. For example: |
---|
2780 | |
---|
2781 | _$_3foo (destructor for class foo) |
---|
2782 | _vt$foo (foo virtual table) |
---|
2783 | _vt$foo$bar (foo::bar virtual table) |
---|
2784 | __vt_foo (foo virtual table, new style with thunks) |
---|
2785 | _3foo$varname (static data member) |
---|
2786 | _Q22rs2tu$vw (static data member) |
---|
2787 | __t6vector1Zii (constructor with template) |
---|
2788 | __thunk_4__$_7ostream (virtual function thunk) |
---|
2789 | */ |
---|
2790 | |
---|
2791 | static int |
---|
2792 | gnu_special (struct work_stuff *work, const char **mangled, string *declp) |
---|
2793 | { |
---|
2794 | int n; |
---|
2795 | int success = 1; |
---|
2796 | const char *p; |
---|
2797 | |
---|
2798 | if ((*mangled)[0] == '_' |
---|
2799 | && strchr (cplus_markers, (*mangled)[1]) != NULL |
---|
2800 | && (*mangled)[2] == '_') |
---|
2801 | { |
---|
2802 | /* Found a GNU style destructor, get past "_<CPLUS_MARKER>_" */ |
---|
2803 | (*mangled) += 3; |
---|
2804 | work -> destructor += 1; |
---|
2805 | } |
---|
2806 | else if ((*mangled)[0] == '_' |
---|
2807 | && (((*mangled)[1] == '_' |
---|
2808 | && (*mangled)[2] == 'v' |
---|
2809 | && (*mangled)[3] == 't' |
---|
2810 | && (*mangled)[4] == '_') |
---|
2811 | || ((*mangled)[1] == 'v' |
---|
2812 | && (*mangled)[2] == 't' |
---|
2813 | && strchr (cplus_markers, (*mangled)[3]) != NULL))) |
---|
2814 | { |
---|
2815 | /* Found a GNU style virtual table, get past "_vt<CPLUS_MARKER>" |
---|
2816 | and create the decl. Note that we consume the entire mangled |
---|
2817 | input string, which means that demangle_signature has no work |
---|
2818 | to do. */ |
---|
2819 | if ((*mangled)[2] == 'v') |
---|
2820 | (*mangled) += 5; /* New style, with thunks: "__vt_" */ |
---|
2821 | else |
---|
2822 | (*mangled) += 4; /* Old style, no thunks: "_vt<CPLUS_MARKER>" */ |
---|
2823 | while (**mangled != '\0') |
---|
2824 | { |
---|
2825 | switch (**mangled) |
---|
2826 | { |
---|
2827 | case 'Q': |
---|
2828 | case 'K': |
---|
2829 | success = demangle_qualified (work, mangled, declp, 0, 1); |
---|
2830 | break; |
---|
2831 | case 't': |
---|
2832 | success = demangle_template (work, mangled, declp, 0, 1, |
---|
2833 | 1); |
---|
2834 | break; |
---|
2835 | default: |
---|
2836 | if (ISDIGIT((unsigned char)*mangled[0])) |
---|
2837 | { |
---|
2838 | n = consume_count(mangled); |
---|
2839 | /* We may be seeing a too-large size, or else a |
---|
2840 | ".<digits>" indicating a static local symbol. In |
---|
2841 | any case, declare victory and move on; *don't* try |
---|
2842 | to use n to allocate. */ |
---|
2843 | if (n > (int) strlen (*mangled)) |
---|
2844 | { |
---|
2845 | success = 1; |
---|
2846 | break; |
---|
2847 | } |
---|
2848 | } |
---|
2849 | else |
---|
2850 | { |
---|
2851 | n = strcspn (*mangled, cplus_markers); |
---|
2852 | } |
---|
2853 | string_appendn (declp, *mangled, n); |
---|
2854 | (*mangled) += n; |
---|
2855 | } |
---|
2856 | |
---|
2857 | p = strpbrk (*mangled, cplus_markers); |
---|
2858 | if (success && ((p == NULL) || (p == *mangled))) |
---|
2859 | { |
---|
2860 | if (p != NULL) |
---|
2861 | { |
---|
2862 | string_append (declp, SCOPE_STRING (work)); |
---|
2863 | (*mangled)++; |
---|
2864 | } |
---|
2865 | } |
---|
2866 | else |
---|
2867 | { |
---|
2868 | success = 0; |
---|
2869 | break; |
---|
2870 | } |
---|
2871 | } |
---|
2872 | if (success) |
---|
2873 | string_append (declp, " virtual table"); |
---|
2874 | } |
---|
2875 | else if ((*mangled)[0] == '_' |
---|
2876 | && (strchr("0123456789Qt", (*mangled)[1]) != NULL) |
---|
2877 | && (p = strpbrk (*mangled, cplus_markers)) != NULL) |
---|
2878 | { |
---|
2879 | /* static data member, "_3foo$varname" for example */ |
---|
2880 | (*mangled)++; |
---|
2881 | switch (**mangled) |
---|
2882 | { |
---|
2883 | case 'Q': |
---|
2884 | case 'K': |
---|
2885 | success = demangle_qualified (work, mangled, declp, 0, 1); |
---|
2886 | break; |
---|
2887 | case 't': |
---|
2888 | success = demangle_template (work, mangled, declp, 0, 1, 1); |
---|
2889 | break; |
---|
2890 | default: |
---|
2891 | n = consume_count (mangled); |
---|
2892 | if (n < 0 || n > (long) strlen (*mangled)) |
---|
2893 | { |
---|
2894 | success = 0; |
---|
2895 | break; |
---|
2896 | } |
---|
2897 | |
---|
2898 | if (n > 10 && strncmp (*mangled, "_GLOBAL_", 8) == 0 |
---|
2899 | && (*mangled)[9] == 'N' |
---|
2900 | && (*mangled)[8] == (*mangled)[10] |
---|
2901 | && strchr (cplus_markers, (*mangled)[8])) |
---|
2902 | { |
---|
2903 | /* A member of the anonymous namespace. There's information |
---|
2904 | about what identifier or filename it was keyed to, but |
---|
2905 | it's just there to make the mangled name unique; we just |
---|
2906 | step over it. */ |
---|
2907 | string_append (declp, "{anonymous}"); |
---|
2908 | (*mangled) += n; |
---|
2909 | |
---|
2910 | /* Now p points to the marker before the N, so we need to |
---|
2911 | update it to the first marker after what we consumed. */ |
---|
2912 | p = strpbrk (*mangled, cplus_markers); |
---|
2913 | break; |
---|
2914 | } |
---|
2915 | |
---|
2916 | string_appendn (declp, *mangled, n); |
---|
2917 | (*mangled) += n; |
---|
2918 | } |
---|
2919 | if (success && (p == *mangled)) |
---|
2920 | { |
---|
2921 | /* Consumed everything up to the cplus_marker, append the |
---|
2922 | variable name. */ |
---|
2923 | (*mangled)++; |
---|
2924 | string_append (declp, SCOPE_STRING (work)); |
---|
2925 | n = strlen (*mangled); |
---|
2926 | string_appendn (declp, *mangled, n); |
---|
2927 | (*mangled) += n; |
---|
2928 | } |
---|
2929 | else |
---|
2930 | { |
---|
2931 | success = 0; |
---|
2932 | } |
---|
2933 | } |
---|
2934 | else if (strncmp (*mangled, "__thunk_", 8) == 0) |
---|
2935 | { |
---|
2936 | int delta; |
---|
2937 | |
---|
2938 | (*mangled) += 8; |
---|
2939 | delta = consume_count (mangled); |
---|
2940 | if (delta == -1) |
---|
2941 | success = 0; |
---|
2942 | else |
---|
2943 | { |
---|
2944 | char *method = internal_cplus_demangle (work, ++*mangled); |
---|
2945 | |
---|
2946 | if (method) |
---|
2947 | { |
---|
2948 | char buf[50]; |
---|
2949 | sprintf (buf, "virtual function thunk (delta:%d) for ", -delta); |
---|
2950 | string_append (declp, buf); |
---|
2951 | string_append (declp, method); |
---|
2952 | free (method); |
---|
2953 | n = strlen (*mangled); |
---|
2954 | (*mangled) += n; |
---|
2955 | } |
---|
2956 | else |
---|
2957 | { |
---|
2958 | success = 0; |
---|
2959 | } |
---|
2960 | } |
---|
2961 | } |
---|
2962 | else if (strncmp (*mangled, "__t", 3) == 0 |
---|
2963 | && ((*mangled)[3] == 'i' || (*mangled)[3] == 'f')) |
---|
2964 | { |
---|
2965 | p = (*mangled)[3] == 'i' ? " type_info node" : " type_info function"; |
---|
2966 | (*mangled) += 4; |
---|
2967 | switch (**mangled) |
---|
2968 | { |
---|
2969 | case 'Q': |
---|
2970 | case 'K': |
---|
2971 | success = demangle_qualified (work, mangled, declp, 0, 1); |
---|
2972 | break; |
---|
2973 | case 't': |
---|
2974 | success = demangle_template (work, mangled, declp, 0, 1, 1); |
---|
2975 | break; |
---|
2976 | default: |
---|
2977 | success = do_type (work, mangled, declp); |
---|
2978 | break; |
---|
2979 | } |
---|
2980 | if (success && **mangled != '\0') |
---|
2981 | success = 0; |
---|
2982 | if (success) |
---|
2983 | string_append (declp, p); |
---|
2984 | } |
---|
2985 | else |
---|
2986 | { |
---|
2987 | success = 0; |
---|
2988 | } |
---|
2989 | return (success); |
---|
2990 | } |
---|
2991 | |
---|
2992 | static void |
---|
2993 | recursively_demangle(struct work_stuff *work, const char **mangled, |
---|
2994 | string *result, int namelength) |
---|
2995 | { |
---|
2996 | char * recurse = (char *)NULL; |
---|
2997 | char * recurse_dem = (char *)NULL; |
---|
2998 | |
---|
2999 | recurse = XNEWVEC (char, namelength + 1); |
---|
3000 | memcpy (recurse, *mangled, namelength); |
---|
3001 | recurse[namelength] = '\000'; |
---|
3002 | |
---|
3003 | recurse_dem = cplus_demangle (recurse, work->options); |
---|
3004 | |
---|
3005 | if (recurse_dem) |
---|
3006 | { |
---|
3007 | string_append (result, recurse_dem); |
---|
3008 | free (recurse_dem); |
---|
3009 | } |
---|
3010 | else |
---|
3011 | { |
---|
3012 | string_appendn (result, *mangled, namelength); |
---|
3013 | } |
---|
3014 | free (recurse); |
---|
3015 | *mangled += namelength; |
---|
3016 | } |
---|
3017 | |
---|
3018 | /* |
---|
3019 | |
---|
3020 | LOCAL FUNCTION |
---|
3021 | |
---|
3022 | arm_special -- special handling of ARM/lucid mangled strings |
---|
3023 | |
---|
3024 | SYNOPSIS |
---|
3025 | |
---|
3026 | static int |
---|
3027 | arm_special (const char **mangled, |
---|
3028 | string *declp); |
---|
3029 | |
---|
3030 | |
---|
3031 | DESCRIPTION |
---|
3032 | |
---|
3033 | Process some special ARM style mangling forms that don't fit |
---|
3034 | the normal pattern. For example: |
---|
3035 | |
---|
3036 | __vtbl__3foo (foo virtual table) |
---|
3037 | __vtbl__3foo__3bar (bar::foo virtual table) |
---|
3038 | |
---|
3039 | */ |
---|
3040 | |
---|
3041 | static int |
---|
3042 | arm_special (const char **mangled, string *declp) |
---|
3043 | { |
---|
3044 | int n; |
---|
3045 | int success = 1; |
---|
3046 | const char *scan; |
---|
3047 | |
---|
3048 | if (strncmp (*mangled, ARM_VTABLE_STRING, ARM_VTABLE_STRLEN) == 0) |
---|
3049 | { |
---|
3050 | /* Found a ARM style virtual table, get past ARM_VTABLE_STRING |
---|
3051 | and create the decl. Note that we consume the entire mangled |
---|
3052 | input string, which means that demangle_signature has no work |
---|
3053 | to do. */ |
---|
3054 | scan = *mangled + ARM_VTABLE_STRLEN; |
---|
3055 | while (*scan != '\0') /* first check it can be demangled */ |
---|
3056 | { |
---|
3057 | n = consume_count (&scan); |
---|
3058 | if (n == -1) |
---|
3059 | { |
---|
3060 | return (0); /* no good */ |
---|
3061 | } |
---|
3062 | scan += n; |
---|
3063 | if (scan[0] == '_' && scan[1] == '_') |
---|
3064 | { |
---|
3065 | scan += 2; |
---|
3066 | } |
---|
3067 | } |
---|
3068 | (*mangled) += ARM_VTABLE_STRLEN; |
---|
3069 | while (**mangled != '\0') |
---|
3070 | { |
---|
3071 | n = consume_count (mangled); |
---|
3072 | if (n == -1 |
---|
3073 | || n > (long) strlen (*mangled)) |
---|
3074 | return 0; |
---|
3075 | string_prependn (declp, *mangled, n); |
---|
3076 | (*mangled) += n; |
---|
3077 | if ((*mangled)[0] == '_' && (*mangled)[1] == '_') |
---|
3078 | { |
---|
3079 | string_prepend (declp, "::"); |
---|
3080 | (*mangled) += 2; |
---|
3081 | } |
---|
3082 | } |
---|
3083 | string_append (declp, " virtual table"); |
---|
3084 | } |
---|
3085 | else |
---|
3086 | { |
---|
3087 | success = 0; |
---|
3088 | } |
---|
3089 | return (success); |
---|
3090 | } |
---|
3091 | |
---|
3092 | /* |
---|
3093 | |
---|
3094 | LOCAL FUNCTION |
---|
3095 | |
---|
3096 | demangle_qualified -- demangle 'Q' qualified name strings |
---|
3097 | |
---|
3098 | SYNOPSIS |
---|
3099 | |
---|
3100 | static int |
---|
3101 | demangle_qualified (struct work_stuff *, const char *mangled, |
---|
3102 | string *result, int isfuncname, int append); |
---|
3103 | |
---|
3104 | DESCRIPTION |
---|
3105 | |
---|
3106 | Demangle a qualified name, such as "Q25Outer5Inner" which is |
---|
3107 | the mangled form of "Outer::Inner". The demangled output is |
---|
3108 | prepended or appended to the result string according to the |
---|
3109 | state of the append flag. |
---|
3110 | |
---|
3111 | If isfuncname is nonzero, then the qualified name we are building |
---|
3112 | is going to be used as a member function name, so if it is a |
---|
3113 | constructor or destructor function, append an appropriate |
---|
3114 | constructor or destructor name. I.E. for the above example, |
---|
3115 | the result for use as a constructor is "Outer::Inner::Inner" |
---|
3116 | and the result for use as a destructor is "Outer::Inner::~Inner". |
---|
3117 | |
---|
3118 | BUGS |
---|
3119 | |
---|
3120 | Numeric conversion is ASCII dependent (FIXME). |
---|
3121 | |
---|
3122 | */ |
---|
3123 | |
---|
3124 | static int |
---|
3125 | demangle_qualified (struct work_stuff *work, const char **mangled, |
---|
3126 | string *result, int isfuncname, int append) |
---|
3127 | { |
---|
3128 | int qualifiers = 0; |
---|
3129 | int success = 1; |
---|
3130 | char num[2]; |
---|
3131 | string temp; |
---|
3132 | string last_name; |
---|
3133 | int bindex = register_Btype (work); |
---|
3134 | |
---|
3135 | /* We only make use of ISFUNCNAME if the entity is a constructor or |
---|
3136 | destructor. */ |
---|
3137 | isfuncname = (isfuncname |
---|
3138 | && ((work->constructor & 1) || (work->destructor & 1))); |
---|
3139 | |
---|
3140 | string_init (&temp); |
---|
3141 | string_init (&last_name); |
---|
3142 | |
---|
3143 | if ((*mangled)[0] == 'K') |
---|
3144 | { |
---|
3145 | /* Squangling qualified name reuse */ |
---|
3146 | int idx; |
---|
3147 | (*mangled)++; |
---|
3148 | idx = consume_count_with_underscores (mangled); |
---|
3149 | if (idx == -1 || idx >= work -> numk) |
---|
3150 | success = 0; |
---|
3151 | else |
---|
3152 | string_append (&temp, work -> ktypevec[idx]); |
---|
3153 | } |
---|
3154 | else |
---|
3155 | switch ((*mangled)[1]) |
---|
3156 | { |
---|
3157 | case '_': |
---|
3158 | /* GNU mangled name with more than 9 classes. The count is preceded |
---|
3159 | by an underscore (to distinguish it from the <= 9 case) and followed |
---|
3160 | by an underscore. */ |
---|
3161 | (*mangled)++; |
---|
3162 | qualifiers = consume_count_with_underscores (mangled); |
---|
3163 | if (qualifiers == -1) |
---|
3164 | success = 0; |
---|
3165 | break; |
---|
3166 | |
---|
3167 | case '1': |
---|
3168 | case '2': |
---|
3169 | case '3': |
---|
3170 | case '4': |
---|
3171 | case '5': |
---|
3172 | case '6': |
---|
3173 | case '7': |
---|
3174 | case '8': |
---|
3175 | case '9': |
---|
3176 | /* The count is in a single digit. */ |
---|
3177 | num[0] = (*mangled)[1]; |
---|
3178 | num[1] = '\0'; |
---|
3179 | qualifiers = atoi (num); |
---|
3180 | |
---|
3181 | /* If there is an underscore after the digit, skip it. This is |
---|
3182 | said to be for ARM-qualified names, but the ARM makes no |
---|
3183 | mention of such an underscore. Perhaps cfront uses one. */ |
---|
3184 | if ((*mangled)[2] == '_') |
---|
3185 | { |
---|
3186 | (*mangled)++; |
---|
3187 | } |
---|
3188 | (*mangled) += 2; |
---|
3189 | break; |
---|
3190 | |
---|
3191 | case '0': |
---|
3192 | default: |
---|
3193 | success = 0; |
---|
3194 | } |
---|
3195 | |
---|
3196 | if (!success) |
---|
3197 | return success; |
---|
3198 | |
---|
3199 | /* Pick off the names and collect them in the temp buffer in the order |
---|
3200 | in which they are found, separated by '::'. */ |
---|
3201 | |
---|
3202 | while (qualifiers-- > 0) |
---|
3203 | { |
---|
3204 | int remember_K = 1; |
---|
3205 | string_clear (&last_name); |
---|
3206 | |
---|
3207 | if (*mangled[0] == '_') |
---|
3208 | (*mangled)++; |
---|
3209 | |
---|
3210 | if (*mangled[0] == 't') |
---|
3211 | { |
---|
3212 | /* Here we always append to TEMP since we will want to use |
---|
3213 | the template name without the template parameters as a |
---|
3214 | constructor or destructor name. The appropriate |
---|
3215 | (parameter-less) value is returned by demangle_template |
---|
3216 | in LAST_NAME. We do not remember the template type here, |
---|
3217 | in order to match the G++ mangling algorithm. */ |
---|
3218 | success = demangle_template(work, mangled, &temp, |
---|
3219 | &last_name, 1, 0); |
---|
3220 | if (!success) |
---|
3221 | break; |
---|
3222 | } |
---|
3223 | else if (*mangled[0] == 'K') |
---|
3224 | { |
---|
3225 | int idx; |
---|
3226 | (*mangled)++; |
---|
3227 | idx = consume_count_with_underscores (mangled); |
---|
3228 | if (idx == -1 || idx >= work->numk) |
---|
3229 | success = 0; |
---|
3230 | else |
---|
3231 | string_append (&temp, work->ktypevec[idx]); |
---|
3232 | remember_K = 0; |
---|
3233 | |
---|
3234 | if (!success) break; |
---|
3235 | } |
---|
3236 | else |
---|
3237 | { |
---|
3238 | if (EDG_DEMANGLING) |
---|
3239 | { |
---|
3240 | int namelength; |
---|
3241 | /* Now recursively demangle the qualifier |
---|
3242 | * This is necessary to deal with templates in |
---|
3243 | * mangling styles like EDG */ |
---|
3244 | namelength = consume_count (mangled); |
---|
3245 | if (namelength == -1) |
---|
3246 | { |
---|
3247 | success = 0; |
---|
3248 | break; |
---|
3249 | } |
---|
3250 | recursively_demangle(work, mangled, &temp, namelength); |
---|
3251 | } |
---|
3252 | else |
---|
3253 | { |
---|
3254 | string_delete (&last_name); |
---|
3255 | success = do_type (work, mangled, &last_name); |
---|
3256 | if (!success) |
---|
3257 | break; |
---|
3258 | string_appends (&temp, &last_name); |
---|
3259 | } |
---|
3260 | } |
---|
3261 | |
---|
3262 | if (remember_K) |
---|
3263 | remember_Ktype (work, temp.b, LEN_STRING (&temp)); |
---|
3264 | |
---|
3265 | if (qualifiers > 0) |
---|
3266 | string_append (&temp, SCOPE_STRING (work)); |
---|
3267 | } |
---|
3268 | |
---|
3269 | remember_Btype (work, temp.b, LEN_STRING (&temp), bindex); |
---|
3270 | |
---|
3271 | /* If we are using the result as a function name, we need to append |
---|
3272 | the appropriate '::' separated constructor or destructor name. |
---|
3273 | We do this here because this is the most convenient place, where |
---|
3274 | we already have a pointer to the name and the length of the name. */ |
---|
3275 | |
---|
3276 | if (isfuncname) |
---|
3277 | { |
---|
3278 | string_append (&temp, SCOPE_STRING (work)); |
---|
3279 | if (work -> destructor & 1) |
---|
3280 | string_append (&temp, "~"); |
---|
3281 | string_appends (&temp, &last_name); |
---|
3282 | } |
---|
3283 | |
---|
3284 | /* Now either prepend the temp buffer to the result, or append it, |
---|
3285 | depending upon the state of the append flag. */ |
---|
3286 | |
---|
3287 | if (append) |
---|
3288 | string_appends (result, &temp); |
---|
3289 | else |
---|
3290 | { |
---|
3291 | if (!STRING_EMPTY (result)) |
---|
3292 | string_append (&temp, SCOPE_STRING (work)); |
---|
3293 | string_prepends (result, &temp); |
---|
3294 | } |
---|
3295 | |
---|
3296 | string_delete (&last_name); |
---|
3297 | string_delete (&temp); |
---|
3298 | return (success); |
---|
3299 | } |
---|
3300 | |
---|
3301 | /* |
---|
3302 | |
---|
3303 | LOCAL FUNCTION |
---|
3304 | |
---|
3305 | get_count -- convert an ascii count to integer, consuming tokens |
---|
3306 | |
---|
3307 | SYNOPSIS |
---|
3308 | |
---|
3309 | static int |
---|
3310 | get_count (const char **type, int *count) |
---|
3311 | |
---|
3312 | DESCRIPTION |
---|
3313 | |
---|
3314 | Assume that *type points at a count in a mangled name; set |
---|
3315 | *count to its value, and set *type to the next character after |
---|
3316 | the count. There are some weird rules in effect here. |
---|
3317 | |
---|
3318 | If *type does not point at a string of digits, return zero. |
---|
3319 | |
---|
3320 | If *type points at a string of digits followed by an |
---|
3321 | underscore, set *count to their value as an integer, advance |
---|
3322 | *type to point *after the underscore, and return 1. |
---|
3323 | |
---|
3324 | If *type points at a string of digits not followed by an |
---|
3325 | underscore, consume only the first digit. Set *count to its |
---|
3326 | value as an integer, leave *type pointing after that digit, |
---|
3327 | and return 1. |
---|
3328 | |
---|
3329 | The excuse for this odd behavior: in the ARM and HP demangling |
---|
3330 | styles, a type can be followed by a repeat count of the form |
---|
3331 | `Nxy', where: |
---|
3332 | |
---|
3333 | `x' is a single digit specifying how many additional copies |
---|
3334 | of the type to append to the argument list, and |
---|
3335 | |
---|
3336 | `y' is one or more digits, specifying the zero-based index of |
---|
3337 | the first repeated argument in the list. Yes, as you're |
---|
3338 | unmangling the name you can figure this out yourself, but |
---|
3339 | it's there anyway. |
---|
3340 | |
---|
3341 | So, for example, in `bar__3fooFPiN51', the first argument is a |
---|
3342 | pointer to an integer (`Pi'), and then the next five arguments |
---|
3343 | are the same (`N5'), and the first repeat is the function's |
---|
3344 | second argument (`1'). |
---|
3345 | */ |
---|
3346 | |
---|
3347 | static int |
---|
3348 | get_count (const char **type, int *count) |
---|
3349 | { |
---|
3350 | const char *p; |
---|
3351 | int n; |
---|
3352 | |
---|
3353 | if (!ISDIGIT ((unsigned char)**type)) |
---|
3354 | return (0); |
---|
3355 | else |
---|
3356 | { |
---|
3357 | *count = **type - '0'; |
---|
3358 | (*type)++; |
---|
3359 | if (ISDIGIT ((unsigned char)**type)) |
---|
3360 | { |
---|
3361 | p = *type; |
---|
3362 | n = *count; |
---|
3363 | do |
---|
3364 | { |
---|
3365 | n *= 10; |
---|
3366 | n += *p - '0'; |
---|
3367 | p++; |
---|
3368 | } |
---|
3369 | while (ISDIGIT ((unsigned char)*p)); |
---|
3370 | if (*p == '_') |
---|
3371 | { |
---|
3372 | *type = p + 1; |
---|
3373 | *count = n; |
---|
3374 | } |
---|
3375 | } |
---|
3376 | } |
---|
3377 | return (1); |
---|
3378 | } |
---|
3379 | |
---|
3380 | /* RESULT will be initialised here; it will be freed on failure. The |
---|
3381 | value returned is really a type_kind_t. */ |
---|
3382 | |
---|
3383 | static int |
---|
3384 | do_type (struct work_stuff *work, const char **mangled, string *result) |
---|
3385 | { |
---|
3386 | int n; |
---|
3387 | int done; |
---|
3388 | int success; |
---|
3389 | string decl; |
---|
3390 | const char *remembered_type; |
---|
3391 | int type_quals; |
---|
3392 | type_kind_t tk = tk_none; |
---|
3393 | |
---|
3394 | string_init (&decl); |
---|
3395 | string_init (result); |
---|
3396 | |
---|
3397 | done = 0; |
---|
3398 | success = 1; |
---|
3399 | while (success && !done) |
---|
3400 | { |
---|
3401 | int member; |
---|
3402 | switch (**mangled) |
---|
3403 | { |
---|
3404 | |
---|
3405 | /* A pointer type */ |
---|
3406 | case 'P': |
---|
3407 | case 'p': |
---|
3408 | (*mangled)++; |
---|
3409 | if (! (work -> options & DMGL_JAVA)) |
---|
3410 | string_prepend (&decl, "*"); |
---|
3411 | if (tk == tk_none) |
---|
3412 | tk = tk_pointer; |
---|
3413 | break; |
---|
3414 | |
---|
3415 | /* A reference type */ |
---|
3416 | case 'R': |
---|
3417 | (*mangled)++; |
---|
3418 | string_prepend (&decl, "&"); |
---|
3419 | if (tk == tk_none) |
---|
3420 | tk = tk_reference; |
---|
3421 | break; |
---|
3422 | |
---|
3423 | /* An array */ |
---|
3424 | case 'A': |
---|
3425 | { |
---|
3426 | ++(*mangled); |
---|
3427 | if (!STRING_EMPTY (&decl) |
---|
3428 | && (decl.b[0] == '*' || decl.b[0] == '&')) |
---|
3429 | { |
---|
3430 | string_prepend (&decl, "("); |
---|
3431 | string_append (&decl, ")"); |
---|
3432 | } |
---|
3433 | string_append (&decl, "["); |
---|
3434 | if (**mangled != '_') |
---|
3435 | success = demangle_template_value_parm (work, mangled, &decl, |
---|
3436 | tk_integral); |
---|
3437 | if (**mangled == '_') |
---|
3438 | ++(*mangled); |
---|
3439 | string_append (&decl, "]"); |
---|
3440 | break; |
---|
3441 | } |
---|
3442 | |
---|
3443 | /* A back reference to a previously seen type */ |
---|
3444 | case 'T': |
---|
3445 | (*mangled)++; |
---|
3446 | if (!get_count (mangled, &n) || n >= work -> ntypes) |
---|
3447 | { |
---|
3448 | success = 0; |
---|
3449 | } |
---|
3450 | else |
---|
3451 | { |
---|
3452 | remembered_type = work -> typevec[n]; |
---|
3453 | mangled = &remembered_type; |
---|
3454 | } |
---|
3455 | break; |
---|
3456 | |
---|
3457 | /* A function */ |
---|
3458 | case 'F': |
---|
3459 | (*mangled)++; |
---|
3460 | if (!STRING_EMPTY (&decl) |
---|
3461 | && (decl.b[0] == '*' || decl.b[0] == '&')) |
---|
3462 | { |
---|
3463 | string_prepend (&decl, "("); |
---|
3464 | string_append (&decl, ")"); |
---|
3465 | } |
---|
3466 | /* After picking off the function args, we expect to either find the |
---|
3467 | function return type (preceded by an '_') or the end of the |
---|
3468 | string. */ |
---|
3469 | if (!demangle_nested_args (work, mangled, &decl) |
---|
3470 | || (**mangled != '_' && **mangled != '\0')) |
---|
3471 | { |
---|
3472 | success = 0; |
---|
3473 | break; |
---|
3474 | } |
---|
3475 | if (success && (**mangled == '_')) |
---|
3476 | (*mangled)++; |
---|
3477 | break; |
---|
3478 | |
---|
3479 | case 'M': |
---|
3480 | case 'O': |
---|
3481 | { |
---|
3482 | type_quals = TYPE_UNQUALIFIED; |
---|
3483 | |
---|
3484 | member = **mangled == 'M'; |
---|
3485 | (*mangled)++; |
---|
3486 | |
---|
3487 | string_append (&decl, ")"); |
---|
3488 | |
---|
3489 | /* We don't need to prepend `::' for a qualified name; |
---|
3490 | demangle_qualified will do that for us. */ |
---|
3491 | if (**mangled != 'Q') |
---|
3492 | string_prepend (&decl, SCOPE_STRING (work)); |
---|
3493 | |
---|
3494 | if (ISDIGIT ((unsigned char)**mangled)) |
---|
3495 | { |
---|
3496 | n = consume_count (mangled); |
---|
3497 | if (n == -1 |
---|
3498 | || (int) strlen (*mangled) < n) |
---|
3499 | { |
---|
3500 | success = 0; |
---|
3501 | break; |
---|
3502 | } |
---|
3503 | string_prependn (&decl, *mangled, n); |
---|
3504 | *mangled += n; |
---|
3505 | } |
---|
3506 | else if (**mangled == 'X' || **mangled == 'Y') |
---|
3507 | { |
---|
3508 | string temp; |
---|
3509 | do_type (work, mangled, &temp); |
---|
3510 | string_prepends (&decl, &temp); |
---|
3511 | string_delete (&temp); |
---|
3512 | } |
---|
3513 | else if (**mangled == 't') |
---|
3514 | { |
---|
3515 | string temp; |
---|
3516 | string_init (&temp); |
---|
3517 | success = demangle_template (work, mangled, &temp, |
---|
3518 | NULL, 1, 1); |
---|
3519 | if (success) |
---|
3520 | { |
---|
3521 | string_prependn (&decl, temp.b, temp.p - temp.b); |
---|
3522 | string_delete (&temp); |
---|
3523 | } |
---|
3524 | else |
---|
3525 | break; |
---|
3526 | } |
---|
3527 | else if (**mangled == 'Q') |
---|
3528 | { |
---|
3529 | success = demangle_qualified (work, mangled, &decl, |
---|
3530 | /*isfuncnam=*/0, |
---|
3531 | /*append=*/0); |
---|
3532 | if (!success) |
---|
3533 | break; |
---|
3534 | } |
---|
3535 | else |
---|
3536 | { |
---|
3537 | success = 0; |
---|
3538 | break; |
---|
3539 | } |
---|
3540 | |
---|
3541 | string_prepend (&decl, "("); |
---|
3542 | if (member) |
---|
3543 | { |
---|
3544 | switch (**mangled) |
---|
3545 | { |
---|
3546 | case 'C': |
---|
3547 | case 'V': |
---|
3548 | case 'u': |
---|
3549 | type_quals |= code_for_qualifier (**mangled); |
---|
3550 | (*mangled)++; |
---|
3551 | break; |
---|
3552 | |
---|
3553 | default: |
---|
3554 | break; |
---|
3555 | } |
---|
3556 | |
---|
3557 | if (*(*mangled)++ != 'F') |
---|
3558 | { |
---|
3559 | success = 0; |
---|
3560 | break; |
---|
3561 | } |
---|
3562 | } |
---|
3563 | if ((member && !demangle_nested_args (work, mangled, &decl)) |
---|
3564 | || **mangled != '_') |
---|
3565 | { |
---|
3566 | success = 0; |
---|
3567 | break; |
---|
3568 | } |
---|
3569 | (*mangled)++; |
---|
3570 | if (! PRINT_ANSI_QUALIFIERS) |
---|
3571 | { |
---|
3572 | break; |
---|
3573 | } |
---|
3574 | if (type_quals != TYPE_UNQUALIFIED) |
---|
3575 | { |
---|
3576 | APPEND_BLANK (&decl); |
---|
3577 | string_append (&decl, qualifier_string (type_quals)); |
---|
3578 | } |
---|
3579 | break; |
---|
3580 | } |
---|
3581 | case 'G': |
---|
3582 | (*mangled)++; |
---|
3583 | break; |
---|
3584 | |
---|
3585 | case 'C': |
---|
3586 | case 'V': |
---|
3587 | case 'u': |
---|
3588 | if (PRINT_ANSI_QUALIFIERS) |
---|
3589 | { |
---|
3590 | if (!STRING_EMPTY (&decl)) |
---|
3591 | string_prepend (&decl, " "); |
---|
3592 | |
---|
3593 | string_prepend (&decl, demangle_qualifier (**mangled)); |
---|
3594 | } |
---|
3595 | (*mangled)++; |
---|
3596 | break; |
---|
3597 | /* |
---|
3598 | } |
---|
3599 | */ |
---|
3600 | |
---|
3601 | /* fall through */ |
---|
3602 | default: |
---|
3603 | done = 1; |
---|
3604 | break; |
---|
3605 | } |
---|
3606 | } |
---|
3607 | |
---|
3608 | if (success) switch (**mangled) |
---|
3609 | { |
---|
3610 | /* A qualified name, such as "Outer::Inner". */ |
---|
3611 | case 'Q': |
---|
3612 | case 'K': |
---|
3613 | { |
---|
3614 | success = demangle_qualified (work, mangled, result, 0, 1); |
---|
3615 | break; |
---|
3616 | } |
---|
3617 | |
---|
3618 | /* A back reference to a previously seen squangled type */ |
---|
3619 | case 'B': |
---|
3620 | (*mangled)++; |
---|
3621 | if (!get_count (mangled, &n) || n >= work -> numb) |
---|
3622 | success = 0; |
---|
3623 | else |
---|
3624 | string_append (result, work->btypevec[n]); |
---|
3625 | break; |
---|
3626 | |
---|
3627 | case 'X': |
---|
3628 | case 'Y': |
---|
3629 | /* A template parm. We substitute the corresponding argument. */ |
---|
3630 | { |
---|
3631 | int idx; |
---|
3632 | |
---|
3633 | (*mangled)++; |
---|
3634 | idx = consume_count_with_underscores (mangled); |
---|
3635 | |
---|
3636 | if (idx == -1 |
---|
3637 | || (work->tmpl_argvec && idx >= work->ntmpl_args) |
---|
3638 | || consume_count_with_underscores (mangled) == -1) |
---|
3639 | { |
---|
3640 | success = 0; |
---|
3641 | break; |
---|
3642 | } |
---|
3643 | |
---|
3644 | if (work->tmpl_argvec) |
---|
3645 | string_append (result, work->tmpl_argvec[idx]); |
---|
3646 | else |
---|
3647 | string_append_template_idx (result, idx); |
---|
3648 | |
---|
3649 | success = 1; |
---|
3650 | } |
---|
3651 | break; |
---|
3652 | |
---|
3653 | default: |
---|
3654 | success = demangle_fund_type (work, mangled, result); |
---|
3655 | if (tk == tk_none) |
---|
3656 | tk = (type_kind_t) success; |
---|
3657 | break; |
---|
3658 | } |
---|
3659 | |
---|
3660 | if (success) |
---|
3661 | { |
---|
3662 | if (!STRING_EMPTY (&decl)) |
---|
3663 | { |
---|
3664 | string_append (result, " "); |
---|
3665 | string_appends (result, &decl); |
---|
3666 | } |
---|
3667 | } |
---|
3668 | else |
---|
3669 | string_delete (result); |
---|
3670 | string_delete (&decl); |
---|
3671 | |
---|
3672 | if (success) |
---|
3673 | /* Assume an integral type, if we're not sure. */ |
---|
3674 | return (int) ((tk == tk_none) ? tk_integral : tk); |
---|
3675 | else |
---|
3676 | return 0; |
---|
3677 | } |
---|
3678 | |
---|
3679 | /* Given a pointer to a type string that represents a fundamental type |
---|
3680 | argument (int, long, unsigned int, etc) in TYPE, a pointer to the |
---|
3681 | string in which the demangled output is being built in RESULT, and |
---|
3682 | the WORK structure, decode the types and add them to the result. |
---|
3683 | |
---|
3684 | For example: |
---|
3685 | |
---|
3686 | "Ci" => "const int" |
---|
3687 | "Sl" => "signed long" |
---|
3688 | "CUs" => "const unsigned short" |
---|
3689 | |
---|
3690 | The value returned is really a type_kind_t. */ |
---|
3691 | |
---|
3692 | static int |
---|
3693 | demangle_fund_type (struct work_stuff *work, |
---|
3694 | const char **mangled, string *result) |
---|
3695 | { |
---|
3696 | int done = 0; |
---|
3697 | int success = 1; |
---|
3698 | char buf[INTBUF_SIZE + 5 /* 'int%u_t' */]; |
---|
3699 | unsigned int dec = 0; |
---|
3700 | type_kind_t tk = tk_integral; |
---|
3701 | |
---|
3702 | /* First pick off any type qualifiers. There can be more than one. */ |
---|
3703 | |
---|
3704 | while (!done) |
---|
3705 | { |
---|
3706 | switch (**mangled) |
---|
3707 | { |
---|
3708 | case 'C': |
---|
3709 | case 'V': |
---|
3710 | case 'u': |
---|
3711 | if (PRINT_ANSI_QUALIFIERS) |
---|
3712 | { |
---|
3713 | if (!STRING_EMPTY (result)) |
---|
3714 | string_prepend (result, " "); |
---|
3715 | string_prepend (result, demangle_qualifier (**mangled)); |
---|
3716 | } |
---|
3717 | (*mangled)++; |
---|
3718 | break; |
---|
3719 | case 'U': |
---|
3720 | (*mangled)++; |
---|
3721 | APPEND_BLANK (result); |
---|
3722 | string_append (result, "unsigned"); |
---|
3723 | break; |
---|
3724 | case 'S': /* signed char only */ |
---|
3725 | (*mangled)++; |
---|
3726 | APPEND_BLANK (result); |
---|
3727 | string_append (result, "signed"); |
---|
3728 | break; |
---|
3729 | case 'J': |
---|
3730 | (*mangled)++; |
---|
3731 | APPEND_BLANK (result); |
---|
3732 | string_append (result, "__complex"); |
---|
3733 | break; |
---|
3734 | default: |
---|
3735 | done = 1; |
---|
3736 | break; |
---|
3737 | } |
---|
3738 | } |
---|
3739 | |
---|
3740 | /* Now pick off the fundamental type. There can be only one. */ |
---|
3741 | |
---|
3742 | switch (**mangled) |
---|
3743 | { |
---|
3744 | case '\0': |
---|
3745 | case '_': |
---|
3746 | break; |
---|
3747 | case 'v': |
---|
3748 | (*mangled)++; |
---|
3749 | APPEND_BLANK (result); |
---|
3750 | string_append (result, "void"); |
---|
3751 | break; |
---|
3752 | case 'x': |
---|
3753 | (*mangled)++; |
---|
3754 | APPEND_BLANK (result); |
---|
3755 | string_append (result, "long long"); |
---|
3756 | break; |
---|
3757 | case 'l': |
---|
3758 | (*mangled)++; |
---|
3759 | APPEND_BLANK (result); |
---|
3760 | string_append (result, "long"); |
---|
3761 | break; |
---|
3762 | case 'i': |
---|
3763 | (*mangled)++; |
---|
3764 | APPEND_BLANK (result); |
---|
3765 | string_append (result, "int"); |
---|
3766 | break; |
---|
3767 | case 's': |
---|
3768 | (*mangled)++; |
---|
3769 | APPEND_BLANK (result); |
---|
3770 | string_append (result, "short"); |
---|
3771 | break; |
---|
3772 | case 'b': |
---|
3773 | (*mangled)++; |
---|
3774 | APPEND_BLANK (result); |
---|
3775 | string_append (result, "bool"); |
---|
3776 | tk = tk_bool; |
---|
3777 | break; |
---|
3778 | case 'c': |
---|
3779 | (*mangled)++; |
---|
3780 | APPEND_BLANK (result); |
---|
3781 | string_append (result, "char"); |
---|
3782 | tk = tk_char; |
---|
3783 | break; |
---|
3784 | case 'w': |
---|
3785 | (*mangled)++; |
---|
3786 | APPEND_BLANK (result); |
---|
3787 | string_append (result, "wchar_t"); |
---|
3788 | tk = tk_char; |
---|
3789 | break; |
---|
3790 | case 'r': |
---|
3791 | (*mangled)++; |
---|
3792 | APPEND_BLANK (result); |
---|
3793 | string_append (result, "long double"); |
---|
3794 | tk = tk_real; |
---|
3795 | break; |
---|
3796 | case 'd': |
---|
3797 | (*mangled)++; |
---|
3798 | APPEND_BLANK (result); |
---|
3799 | string_append (result, "double"); |
---|
3800 | tk = tk_real; |
---|
3801 | break; |
---|
3802 | case 'f': |
---|
3803 | (*mangled)++; |
---|
3804 | APPEND_BLANK (result); |
---|
3805 | string_append (result, "float"); |
---|
3806 | tk = tk_real; |
---|
3807 | break; |
---|
3808 | case 'G': |
---|
3809 | (*mangled)++; |
---|
3810 | if (!ISDIGIT ((unsigned char)**mangled)) |
---|
3811 | { |
---|
3812 | success = 0; |
---|
3813 | break; |
---|
3814 | } |
---|
3815 | case 'I': |
---|
3816 | (*mangled)++; |
---|
3817 | if (**mangled == '_') |
---|
3818 | { |
---|
3819 | int i; |
---|
3820 | (*mangled)++; |
---|
3821 | for (i = 0; |
---|
3822 | i < (long) sizeof (buf) - 1 && **mangled && **mangled != '_'; |
---|
3823 | (*mangled)++, i++) |
---|
3824 | buf[i] = **mangled; |
---|
3825 | if (**mangled != '_') |
---|
3826 | { |
---|
3827 | success = 0; |
---|
3828 | break; |
---|
3829 | } |
---|
3830 | buf[i] = '\0'; |
---|
3831 | (*mangled)++; |
---|
3832 | } |
---|
3833 | else |
---|
3834 | { |
---|
3835 | strncpy (buf, *mangled, 2); |
---|
3836 | buf[2] = '\0'; |
---|
3837 | *mangled += min (strlen (*mangled), 2); |
---|
3838 | } |
---|
3839 | sscanf (buf, "%x", &dec); |
---|
3840 | sprintf (buf, "int%u_t", dec); |
---|
3841 | APPEND_BLANK (result); |
---|
3842 | string_append (result, buf); |
---|
3843 | break; |
---|
3844 | |
---|
3845 | /* fall through */ |
---|
3846 | /* An explicit type, such as "6mytype" or "7integer" */ |
---|
3847 | case '0': |
---|
3848 | case '1': |
---|
3849 | case '2': |
---|
3850 | case '3': |
---|
3851 | case '4': |
---|
3852 | case '5': |
---|
3853 | case '6': |
---|
3854 | case '7': |
---|
3855 | case '8': |
---|
3856 | case '9': |
---|
3857 | { |
---|
3858 | int bindex = register_Btype (work); |
---|
3859 | string btype; |
---|
3860 | string_init (&btype); |
---|
3861 | if (demangle_class_name (work, mangled, &btype)) { |
---|
3862 | remember_Btype (work, btype.b, LEN_STRING (&btype), bindex); |
---|
3863 | APPEND_BLANK (result); |
---|
3864 | string_appends (result, &btype); |
---|
3865 | } |
---|
3866 | else |
---|
3867 | success = 0; |
---|
3868 | string_delete (&btype); |
---|
3869 | break; |
---|
3870 | } |
---|
3871 | case 't': |
---|
3872 | { |
---|
3873 | string btype; |
---|
3874 | string_init (&btype); |
---|
3875 | success = demangle_template (work, mangled, &btype, 0, 1, 1); |
---|
3876 | string_appends (result, &btype); |
---|
3877 | string_delete (&btype); |
---|
3878 | break; |
---|
3879 | } |
---|
3880 | default: |
---|
3881 | success = 0; |
---|
3882 | break; |
---|
3883 | } |
---|
3884 | |
---|
3885 | return success ? ((int) tk) : 0; |
---|
3886 | } |
---|
3887 | |
---|
3888 | |
---|
3889 | /* Handle a template's value parameter for HP aCC (extension from ARM) |
---|
3890 | **mangled points to 'S' or 'U' */ |
---|
3891 | |
---|
3892 | static int |
---|
3893 | do_hpacc_template_const_value (struct work_stuff *work ATTRIBUTE_UNUSED, |
---|
3894 | const char **mangled, string *result) |
---|
3895 | { |
---|
3896 | int unsigned_const; |
---|
3897 | |
---|
3898 | if (**mangled != 'U' && **mangled != 'S') |
---|
3899 | return 0; |
---|
3900 | |
---|
3901 | unsigned_const = (**mangled == 'U'); |
---|
3902 | |
---|
3903 | (*mangled)++; |
---|
3904 | |
---|
3905 | switch (**mangled) |
---|
3906 | { |
---|
3907 | case 'N': |
---|
3908 | string_append (result, "-"); |
---|
3909 | /* fall through */ |
---|
3910 | case 'P': |
---|
3911 | (*mangled)++; |
---|
3912 | break; |
---|
3913 | case 'M': |
---|
3914 | /* special case for -2^31 */ |
---|
3915 | string_append (result, "-2147483648"); |
---|
3916 | (*mangled)++; |
---|
3917 | return 1; |
---|
3918 | default: |
---|
3919 | return 0; |
---|
3920 | } |
---|
3921 | |
---|
3922 | /* We have to be looking at an integer now */ |
---|
3923 | if (!(ISDIGIT ((unsigned char)**mangled))) |
---|
3924 | return 0; |
---|
3925 | |
---|
3926 | /* We only deal with integral values for template |
---|
3927 | parameters -- so it's OK to look only for digits */ |
---|
3928 | while (ISDIGIT ((unsigned char)**mangled)) |
---|
3929 | { |
---|
3930 | char_str[0] = **mangled; |
---|
3931 | string_append (result, char_str); |
---|
3932 | (*mangled)++; |
---|
3933 | } |
---|
3934 | |
---|
3935 | if (unsigned_const) |
---|
3936 | string_append (result, "U"); |
---|
3937 | |
---|
3938 | /* FIXME? Some day we may have 64-bit (or larger :-) ) constants |
---|
3939 | with L or LL suffixes. pai/1997-09-03 */ |
---|
3940 | |
---|
3941 | return 1; /* success */ |
---|
3942 | } |
---|
3943 | |
---|
3944 | /* Handle a template's literal parameter for HP aCC (extension from ARM) |
---|
3945 | **mangled is pointing to the 'A' */ |
---|
3946 | |
---|
3947 | static int |
---|
3948 | do_hpacc_template_literal (struct work_stuff *work, const char **mangled, |
---|
3949 | string *result) |
---|
3950 | { |
---|
3951 | int literal_len = 0; |
---|
3952 | char * recurse; |
---|
3953 | char * recurse_dem; |
---|
3954 | |
---|
3955 | if (**mangled != 'A') |
---|
3956 | return 0; |
---|
3957 | |
---|
3958 | (*mangled)++; |
---|
3959 | |
---|
3960 | literal_len = consume_count (mangled); |
---|
3961 | |
---|
3962 | if (literal_len <= 0) |
---|
3963 | return 0; |
---|
3964 | |
---|
3965 | /* Literal parameters are names of arrays, functions, etc. and the |
---|
3966 | canonical representation uses the address operator */ |
---|
3967 | string_append (result, "&"); |
---|
3968 | |
---|
3969 | /* Now recursively demangle the literal name */ |
---|
3970 | recurse = XNEWVEC (char, literal_len + 1); |
---|
3971 | memcpy (recurse, *mangled, literal_len); |
---|
3972 | recurse[literal_len] = '\000'; |
---|
3973 | |
---|
3974 | recurse_dem = cplus_demangle (recurse, work->options); |
---|
3975 | |
---|
3976 | if (recurse_dem) |
---|
3977 | { |
---|
3978 | string_append (result, recurse_dem); |
---|
3979 | free (recurse_dem); |
---|
3980 | } |
---|
3981 | else |
---|
3982 | { |
---|
3983 | string_appendn (result, *mangled, literal_len); |
---|
3984 | } |
---|
3985 | (*mangled) += literal_len; |
---|
3986 | free (recurse); |
---|
3987 | |
---|
3988 | return 1; |
---|
3989 | } |
---|
3990 | |
---|
3991 | static int |
---|
3992 | snarf_numeric_literal (const char **args, string *arg) |
---|
3993 | { |
---|
3994 | if (**args == '-') |
---|
3995 | { |
---|
3996 | char_str[0] = '-'; |
---|
3997 | string_append (arg, char_str); |
---|
3998 | (*args)++; |
---|
3999 | } |
---|
4000 | else if (**args == '+') |
---|
4001 | (*args)++; |
---|
4002 | |
---|
4003 | if (!ISDIGIT ((unsigned char)**args)) |
---|
4004 | return 0; |
---|
4005 | |
---|
4006 | while (ISDIGIT ((unsigned char)**args)) |
---|
4007 | { |
---|
4008 | char_str[0] = **args; |
---|
4009 | string_append (arg, char_str); |
---|
4010 | (*args)++; |
---|
4011 | } |
---|
4012 | |
---|
4013 | return 1; |
---|
4014 | } |
---|
4015 | |
---|
4016 | /* Demangle the next argument, given by MANGLED into RESULT, which |
---|
4017 | *should be an uninitialized* string. It will be initialized here, |
---|
4018 | and free'd should anything go wrong. */ |
---|
4019 | |
---|
4020 | static int |
---|
4021 | do_arg (struct work_stuff *work, const char **mangled, string *result) |
---|
4022 | { |
---|
4023 | /* Remember where we started so that we can record the type, for |
---|
4024 | non-squangling type remembering. */ |
---|
4025 | const char *start = *mangled; |
---|
4026 | |
---|
4027 | string_init (result); |
---|
4028 | |
---|
4029 | if (work->nrepeats > 0) |
---|
4030 | { |
---|
4031 | --work->nrepeats; |
---|
4032 | |
---|
4033 | if (work->previous_argument == 0) |
---|
4034 | return 0; |
---|
4035 | |
---|
4036 | /* We want to reissue the previous type in this argument list. */ |
---|
4037 | string_appends (result, work->previous_argument); |
---|
4038 | return 1; |
---|
4039 | } |
---|
4040 | |
---|
4041 | if (**mangled == 'n') |
---|
4042 | { |
---|
4043 | /* A squangling-style repeat. */ |
---|
4044 | (*mangled)++; |
---|
4045 | work->nrepeats = consume_count(mangled); |
---|
4046 | |
---|
4047 | if (work->nrepeats <= 0) |
---|
4048 | /* This was not a repeat count after all. */ |
---|
4049 | return 0; |
---|
4050 | |
---|
4051 | if (work->nrepeats > 9) |
---|
4052 | { |
---|
4053 | if (**mangled != '_') |
---|
4054 | /* The repeat count should be followed by an '_' in this |
---|
4055 | case. */ |
---|
4056 | return 0; |
---|
4057 | else |
---|
4058 | (*mangled)++; |
---|
4059 | } |
---|
4060 | |
---|
4061 | /* Now, the repeat is all set up. */ |
---|
4062 | return do_arg (work, mangled, result); |
---|
4063 | } |
---|
4064 | |
---|
4065 | /* Save the result in WORK->previous_argument so that we can find it |
---|
4066 | if it's repeated. Note that saving START is not good enough: we |
---|
4067 | do not want to add additional types to the back-referenceable |
---|
4068 | type vector when processing a repeated type. */ |
---|
4069 | if (work->previous_argument) |
---|
4070 | string_delete (work->previous_argument); |
---|
4071 | else |
---|
4072 | work->previous_argument = XNEW (string); |
---|
4073 | |
---|
4074 | if (!do_type (work, mangled, work->previous_argument)) |
---|
4075 | return 0; |
---|
4076 | |
---|
4077 | string_appends (result, work->previous_argument); |
---|
4078 | |
---|
4079 | remember_type (work, start, *mangled - start); |
---|
4080 | return 1; |
---|
4081 | } |
---|
4082 | |
---|
4083 | static void |
---|
4084 | remember_type (struct work_stuff *work, const char *start, int len) |
---|
4085 | { |
---|
4086 | char *tem; |
---|
4087 | |
---|
4088 | if (work->forgetting_types) |
---|
4089 | return; |
---|
4090 | |
---|
4091 | if (work -> ntypes >= work -> typevec_size) |
---|
4092 | { |
---|
4093 | if (work -> typevec_size == 0) |
---|
4094 | { |
---|
4095 | work -> typevec_size = 3; |
---|
4096 | work -> typevec = XNEWVEC (char *, work->typevec_size); |
---|
4097 | } |
---|
4098 | else |
---|
4099 | { |
---|
4100 | work -> typevec_size *= 2; |
---|
4101 | work -> typevec |
---|
4102 | = XRESIZEVEC (char *, work->typevec, work->typevec_size); |
---|
4103 | } |
---|
4104 | } |
---|
4105 | tem = XNEWVEC (char, len + 1); |
---|
4106 | memcpy (tem, start, len); |
---|
4107 | tem[len] = '\0'; |
---|
4108 | work -> typevec[work -> ntypes++] = tem; |
---|
4109 | } |
---|
4110 | |
---|
4111 | |
---|
4112 | /* Remember a K type class qualifier. */ |
---|
4113 | static void |
---|
4114 | remember_Ktype (struct work_stuff *work, const char *start, int len) |
---|
4115 | { |
---|
4116 | char *tem; |
---|
4117 | |
---|
4118 | if (work -> numk >= work -> ksize) |
---|
4119 | { |
---|
4120 | if (work -> ksize == 0) |
---|
4121 | { |
---|
4122 | work -> ksize = 5; |
---|
4123 | work -> ktypevec = XNEWVEC (char *, work->ksize); |
---|
4124 | } |
---|
4125 | else |
---|
4126 | { |
---|
4127 | work -> ksize *= 2; |
---|
4128 | work -> ktypevec |
---|
4129 | = XRESIZEVEC (char *, work->ktypevec, work->ksize); |
---|
4130 | } |
---|
4131 | } |
---|
4132 | tem = XNEWVEC (char, len + 1); |
---|
4133 | memcpy (tem, start, len); |
---|
4134 | tem[len] = '\0'; |
---|
4135 | work -> ktypevec[work -> numk++] = tem; |
---|
4136 | } |
---|
4137 | |
---|
4138 | /* Register a B code, and get an index for it. B codes are registered |
---|
4139 | as they are seen, rather than as they are completed, so map<temp<char> > |
---|
4140 | registers map<temp<char> > as B0, and temp<char> as B1 */ |
---|
4141 | |
---|
4142 | static int |
---|
4143 | register_Btype (struct work_stuff *work) |
---|
4144 | { |
---|
4145 | int ret; |
---|
4146 | |
---|
4147 | if (work -> numb >= work -> bsize) |
---|
4148 | { |
---|
4149 | if (work -> bsize == 0) |
---|
4150 | { |
---|
4151 | work -> bsize = 5; |
---|
4152 | work -> btypevec = XNEWVEC (char *, work->bsize); |
---|
4153 | } |
---|
4154 | else |
---|
4155 | { |
---|
4156 | work -> bsize *= 2; |
---|
4157 | work -> btypevec |
---|
4158 | = XRESIZEVEC (char *, work->btypevec, work->bsize); |
---|
4159 | } |
---|
4160 | } |
---|
4161 | ret = work -> numb++; |
---|
4162 | work -> btypevec[ret] = NULL; |
---|
4163 | return(ret); |
---|
4164 | } |
---|
4165 | |
---|
4166 | /* Store a value into a previously registered B code type. */ |
---|
4167 | |
---|
4168 | static void |
---|
4169 | remember_Btype (struct work_stuff *work, const char *start, |
---|
4170 | int len, int index) |
---|
4171 | { |
---|
4172 | char *tem; |
---|
4173 | |
---|
4174 | tem = XNEWVEC (char, len + 1); |
---|
4175 | memcpy (tem, start, len); |
---|
4176 | tem[len] = '\0'; |
---|
4177 | work -> btypevec[index] = tem; |
---|
4178 | } |
---|
4179 | |
---|
4180 | /* Lose all the info related to B and K type codes. */ |
---|
4181 | static void |
---|
4182 | forget_B_and_K_types (struct work_stuff *work) |
---|
4183 | { |
---|
4184 | int i; |
---|
4185 | |
---|
4186 | while (work -> numk > 0) |
---|
4187 | { |
---|
4188 | i = --(work -> numk); |
---|
4189 | if (work -> ktypevec[i] != NULL) |
---|
4190 | { |
---|
4191 | free (work -> ktypevec[i]); |
---|
4192 | work -> ktypevec[i] = NULL; |
---|
4193 | } |
---|
4194 | } |
---|
4195 | |
---|
4196 | while (work -> numb > 0) |
---|
4197 | { |
---|
4198 | i = --(work -> numb); |
---|
4199 | if (work -> btypevec[i] != NULL) |
---|
4200 | { |
---|
4201 | free (work -> btypevec[i]); |
---|
4202 | work -> btypevec[i] = NULL; |
---|
4203 | } |
---|
4204 | } |
---|
4205 | } |
---|
4206 | /* Forget the remembered types, but not the type vector itself. */ |
---|
4207 | |
---|
4208 | static void |
---|
4209 | forget_types (struct work_stuff *work) |
---|
4210 | { |
---|
4211 | int i; |
---|
4212 | |
---|
4213 | while (work -> ntypes > 0) |
---|
4214 | { |
---|
4215 | i = --(work -> ntypes); |
---|
4216 | if (work -> typevec[i] != NULL) |
---|
4217 | { |
---|
4218 | free (work -> typevec[i]); |
---|
4219 | work -> typevec[i] = NULL; |
---|
4220 | } |
---|
4221 | } |
---|
4222 | } |
---|
4223 | |
---|
4224 | /* Process the argument list part of the signature, after any class spec |
---|
4225 | has been consumed, as well as the first 'F' character (if any). For |
---|
4226 | example: |
---|
4227 | |
---|
4228 | "__als__3fooRT0" => process "RT0" |
---|
4229 | "complexfunc5__FPFPc_PFl_i" => process "PFPc_PFl_i" |
---|
4230 | |
---|
4231 | DECLP must be already initialised, usually non-empty. It won't be freed |
---|
4232 | on failure. |
---|
4233 | |
---|
4234 | Note that g++ differs significantly from ARM and lucid style mangling |
---|
4235 | with regards to references to previously seen types. For example, given |
---|
4236 | the source fragment: |
---|
4237 | |
---|
4238 | class foo { |
---|
4239 | public: |
---|
4240 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic); |
---|
4241 | }; |
---|
4242 | |
---|
4243 | foo::foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } |
---|
4244 | void foo (int, foo &ia, int, foo &ib, int, foo &ic) { ia = ib = ic; } |
---|
4245 | |
---|
4246 | g++ produces the names: |
---|
4247 | |
---|
4248 | __3fooiRT0iT2iT2 |
---|
4249 | foo__FiR3fooiT1iT1 |
---|
4250 | |
---|
4251 | while lcc (and presumably other ARM style compilers as well) produces: |
---|
4252 | |
---|
4253 | foo__FiR3fooT1T2T1T2 |
---|
4254 | __ct__3fooFiR3fooT1T2T1T2 |
---|
4255 | |
---|
4256 | Note that g++ bases its type numbers starting at zero and counts all |
---|
4257 | previously seen types, while lucid/ARM bases its type numbers starting |
---|
4258 | at one and only considers types after it has seen the 'F' character |
---|
4259 | indicating the start of the function args. For lucid/ARM style, we |
---|
4260 | account for this difference by discarding any previously seen types when |
---|
4261 | we see the 'F' character, and subtracting one from the type number |
---|
4262 | reference. |
---|
4263 | |
---|
4264 | */ |
---|
4265 | |
---|
4266 | static int |
---|
4267 | demangle_args (struct work_stuff *work, const char **mangled, |
---|
4268 | string *declp) |
---|
4269 | { |
---|
4270 | string arg; |
---|
4271 | int need_comma = 0; |
---|
4272 | int r; |
---|
4273 | int t; |
---|
4274 | const char *tem; |
---|
4275 | char temptype; |
---|
4276 | |
---|
4277 | if (PRINT_ARG_TYPES) |
---|
4278 | { |
---|
4279 | string_append (declp, "("); |
---|
4280 | if (**mangled == '\0') |
---|
4281 | { |
---|
4282 | string_append (declp, "void"); |
---|
4283 | } |
---|
4284 | } |
---|
4285 | |
---|
4286 | while ((**mangled != '_' && **mangled != '\0' && **mangled != 'e') |
---|
4287 | || work->nrepeats > 0) |
---|
4288 | { |
---|
4289 | if ((**mangled == 'N') || (**mangled == 'T')) |
---|
4290 | { |
---|
4291 | temptype = *(*mangled)++; |
---|
4292 | |
---|
4293 | if (temptype == 'N') |
---|
4294 | { |
---|
4295 | if (!get_count (mangled, &r)) |
---|
4296 | { |
---|
4297 | return (0); |
---|
4298 | } |
---|
4299 | } |
---|
4300 | else |
---|
4301 | { |
---|
4302 | r = 1; |
---|
4303 | } |
---|
4304 | if ((HP_DEMANGLING || ARM_DEMANGLING || EDG_DEMANGLING) && work -> ntypes >= 10) |
---|
4305 | { |
---|
4306 | /* If we have 10 or more types we might have more than a 1 digit |
---|
4307 | index so we'll have to consume the whole count here. This |
---|
4308 | will lose if the next thing is a type name preceded by a |
---|
4309 | count but it's impossible to demangle that case properly |
---|
4310 | anyway. Eg if we already have 12 types is T12Pc "(..., type1, |
---|
4311 | Pc, ...)" or "(..., type12, char *, ...)" */ |
---|
4312 | if ((t = consume_count(mangled)) <= 0) |
---|
4313 | { |
---|
4314 | return (0); |
---|
4315 | } |
---|
4316 | } |
---|
4317 | else |
---|
4318 | { |
---|
4319 | if (!get_count (mangled, &t)) |
---|
4320 | { |
---|
4321 | return (0); |
---|
4322 | } |
---|
4323 | } |
---|
4324 | if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
---|
4325 | { |
---|
4326 | t--; |
---|
4327 | } |
---|
4328 | /* Validate the type index. Protect against illegal indices from |
---|
4329 | malformed type strings. */ |
---|
4330 | if ((t < 0) || (t >= work -> ntypes)) |
---|
4331 | { |
---|
4332 | return (0); |
---|
4333 | } |
---|
4334 | while (work->nrepeats > 0 || --r >= 0) |
---|
4335 | { |
---|
4336 | tem = work -> typevec[t]; |
---|
4337 | if (need_comma && PRINT_ARG_TYPES) |
---|
4338 | { |
---|
4339 | string_append (declp, ", "); |
---|
4340 | } |
---|
4341 | if (!do_arg (work, &tem, &arg)) |
---|
4342 | { |
---|
4343 | return (0); |
---|
4344 | } |
---|
4345 | if (PRINT_ARG_TYPES) |
---|
4346 | { |
---|
4347 | string_appends (declp, &arg); |
---|
4348 | } |
---|
4349 | string_delete (&arg); |
---|
4350 | need_comma = 1; |
---|
4351 | } |
---|
4352 | } |
---|
4353 | else |
---|
4354 | { |
---|
4355 | if (need_comma && PRINT_ARG_TYPES) |
---|
4356 | string_append (declp, ", "); |
---|
4357 | if (!do_arg (work, mangled, &arg)) |
---|
4358 | return (0); |
---|
4359 | if (PRINT_ARG_TYPES) |
---|
4360 | string_appends (declp, &arg); |
---|
4361 | string_delete (&arg); |
---|
4362 | need_comma = 1; |
---|
4363 | } |
---|
4364 | } |
---|
4365 | |
---|
4366 | if (**mangled == 'e') |
---|
4367 | { |
---|
4368 | (*mangled)++; |
---|
4369 | if (PRINT_ARG_TYPES) |
---|
4370 | { |
---|
4371 | if (need_comma) |
---|
4372 | { |
---|
4373 | string_append (declp, ","); |
---|
4374 | } |
---|
4375 | string_append (declp, "..."); |
---|
4376 | } |
---|
4377 | } |
---|
4378 | |
---|
4379 | if (PRINT_ARG_TYPES) |
---|
4380 | { |
---|
4381 | string_append (declp, ")"); |
---|
4382 | } |
---|
4383 | return (1); |
---|
4384 | } |
---|
4385 | |
---|
4386 | /* Like demangle_args, but for demangling the argument lists of function |
---|
4387 | and method pointers or references, not top-level declarations. */ |
---|
4388 | |
---|
4389 | static int |
---|
4390 | demangle_nested_args (struct work_stuff *work, const char **mangled, |
---|
4391 | string *declp) |
---|
4392 | { |
---|
4393 | string* saved_previous_argument; |
---|
4394 | int result; |
---|
4395 | int saved_nrepeats; |
---|
4396 | |
---|
4397 | /* The G++ name-mangling algorithm does not remember types on nested |
---|
4398 | argument lists, unless -fsquangling is used, and in that case the |
---|
4399 | type vector updated by remember_type is not used. So, we turn |
---|
4400 | off remembering of types here. */ |
---|
4401 | ++work->forgetting_types; |
---|
4402 | |
---|
4403 | /* For the repeat codes used with -fsquangling, we must keep track of |
---|
4404 | the last argument. */ |
---|
4405 | saved_previous_argument = work->previous_argument; |
---|
4406 | saved_nrepeats = work->nrepeats; |
---|
4407 | work->previous_argument = 0; |
---|
4408 | work->nrepeats = 0; |
---|
4409 | |
---|
4410 | /* Actually demangle the arguments. */ |
---|
4411 | result = demangle_args (work, mangled, declp); |
---|
4412 | |
---|
4413 | /* Restore the previous_argument field. */ |
---|
4414 | if (work->previous_argument) |
---|
4415 | { |
---|
4416 | string_delete (work->previous_argument); |
---|
4417 | free ((char *) work->previous_argument); |
---|
4418 | } |
---|
4419 | work->previous_argument = saved_previous_argument; |
---|
4420 | --work->forgetting_types; |
---|
4421 | work->nrepeats = saved_nrepeats; |
---|
4422 | |
---|
4423 | return result; |
---|
4424 | } |
---|
4425 | |
---|
4426 | /* Returns 1 if a valid function name was found or 0 otherwise. */ |
---|
4427 | |
---|
4428 | static int |
---|
4429 | demangle_function_name (struct work_stuff *work, const char **mangled, |
---|
4430 | string *declp, const char *scan) |
---|
4431 | { |
---|
4432 | size_t i; |
---|
4433 | string type; |
---|
4434 | const char *tem; |
---|
4435 | |
---|
4436 | string_appendn (declp, (*mangled), scan - (*mangled)); |
---|
4437 | string_need (declp, 1); |
---|
4438 | *(declp -> p) = '\0'; |
---|
4439 | |
---|
4440 | /* Consume the function name, including the "__" separating the name |
---|
4441 | from the signature. We are guaranteed that SCAN points to the |
---|
4442 | separator. */ |
---|
4443 | |
---|
4444 | (*mangled) = scan + 2; |
---|
4445 | /* We may be looking at an instantiation of a template function: |
---|
4446 | foo__Xt1t2_Ft3t4, where t1, t2, ... are template arguments and a |
---|
4447 | following _F marks the start of the function arguments. Handle |
---|
4448 | the template arguments first. */ |
---|
4449 | |
---|
4450 | if (HP_DEMANGLING && (**mangled == 'X')) |
---|
4451 | { |
---|
4452 | demangle_arm_hp_template (work, mangled, 0, declp); |
---|
4453 | /* This leaves MANGLED pointing to the 'F' marking func args */ |
---|
4454 | } |
---|
4455 | |
---|
4456 | if (LUCID_DEMANGLING || ARM_DEMANGLING || HP_DEMANGLING || EDG_DEMANGLING) |
---|
4457 | { |
---|
4458 | |
---|
4459 | /* See if we have an ARM style constructor or destructor operator. |
---|
4460 | If so, then just record it, clear the decl, and return. |
---|
4461 | We can't build the actual constructor/destructor decl until later, |
---|
4462 | when we recover the class name from the signature. */ |
---|
4463 | |
---|
4464 | if (strcmp (declp -> b, "__ct") == 0) |
---|
4465 | { |
---|
4466 | work -> constructor += 1; |
---|
4467 | string_clear (declp); |
---|
4468 | return 1; |
---|
4469 | } |
---|
4470 | else if (strcmp (declp -> b, "__dt") == 0) |
---|
4471 | { |
---|
4472 | work -> destructor += 1; |
---|
4473 | string_clear (declp); |
---|
4474 | return 1; |
---|
4475 | } |
---|
4476 | } |
---|
4477 | |
---|
4478 | if (declp->p - declp->b >= 3 |
---|
4479 | && declp->b[0] == 'o' |
---|
4480 | && declp->b[1] == 'p' |
---|
4481 | && strchr (cplus_markers, declp->b[2]) != NULL) |
---|
4482 | { |
---|
4483 | /* see if it's an assignment expression */ |
---|
4484 | if (declp->p - declp->b >= 10 /* op$assign_ */ |
---|
4485 | && memcmp (declp->b + 3, "assign_", 7) == 0) |
---|
4486 | { |
---|
4487 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
4488 | { |
---|
4489 | int len = declp->p - declp->b - 10; |
---|
4490 | if ((int) strlen (optable[i].in) == len |
---|
4491 | && memcmp (optable[i].in, declp->b + 10, len) == 0) |
---|
4492 | { |
---|
4493 | string_clear (declp); |
---|
4494 | string_append (declp, "operator"); |
---|
4495 | string_append (declp, optable[i].out); |
---|
4496 | string_append (declp, "="); |
---|
4497 | break; |
---|
4498 | } |
---|
4499 | } |
---|
4500 | } |
---|
4501 | else |
---|
4502 | { |
---|
4503 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
4504 | { |
---|
4505 | int len = declp->p - declp->b - 3; |
---|
4506 | if ((int) strlen (optable[i].in) == len |
---|
4507 | && memcmp (optable[i].in, declp->b + 3, len) == 0) |
---|
4508 | { |
---|
4509 | string_clear (declp); |
---|
4510 | string_append (declp, "operator"); |
---|
4511 | string_append (declp, optable[i].out); |
---|
4512 | break; |
---|
4513 | } |
---|
4514 | } |
---|
4515 | } |
---|
4516 | } |
---|
4517 | else if (declp->p - declp->b >= 5 && memcmp (declp->b, "type", 4) == 0 |
---|
4518 | && strchr (cplus_markers, declp->b[4]) != NULL) |
---|
4519 | { |
---|
4520 | /* type conversion operator */ |
---|
4521 | tem = declp->b + 5; |
---|
4522 | if (do_type (work, &tem, &type)) |
---|
4523 | { |
---|
4524 | string_clear (declp); |
---|
4525 | string_append (declp, "operator "); |
---|
4526 | string_appends (declp, &type); |
---|
4527 | string_delete (&type); |
---|
4528 | } |
---|
4529 | } |
---|
4530 | else if (declp->b[0] == '_' && declp->b[1] == '_' |
---|
4531 | && declp->b[2] == 'o' && declp->b[3] == 'p') |
---|
4532 | { |
---|
4533 | /* ANSI. */ |
---|
4534 | /* type conversion operator. */ |
---|
4535 | tem = declp->b + 4; |
---|
4536 | if (do_type (work, &tem, &type)) |
---|
4537 | { |
---|
4538 | string_clear (declp); |
---|
4539 | string_append (declp, "operator "); |
---|
4540 | string_appends (declp, &type); |
---|
4541 | string_delete (&type); |
---|
4542 | } |
---|
4543 | } |
---|
4544 | else if (declp->b[0] == '_' && declp->b[1] == '_' |
---|
4545 | && ISLOWER((unsigned char)declp->b[2]) |
---|
4546 | && ISLOWER((unsigned char)declp->b[3])) |
---|
4547 | { |
---|
4548 | if (declp->b[4] == '\0') |
---|
4549 | { |
---|
4550 | /* Operator. */ |
---|
4551 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
4552 | { |
---|
4553 | if (strlen (optable[i].in) == 2 |
---|
4554 | && memcmp (optable[i].in, declp->b + 2, 2) == 0) |
---|
4555 | { |
---|
4556 | string_clear (declp); |
---|
4557 | string_append (declp, "operator"); |
---|
4558 | string_append (declp, optable[i].out); |
---|
4559 | break; |
---|
4560 | } |
---|
4561 | } |
---|
4562 | } |
---|
4563 | else |
---|
4564 | { |
---|
4565 | if (declp->b[2] == 'a' && declp->b[5] == '\0') |
---|
4566 | { |
---|
4567 | /* Assignment. */ |
---|
4568 | for (i = 0; i < ARRAY_SIZE (optable); i++) |
---|
4569 | { |
---|
4570 | if (strlen (optable[i].in) == 3 |
---|
4571 | && memcmp (optable[i].in, declp->b + 2, 3) == 0) |
---|
4572 | { |
---|
4573 | string_clear (declp); |
---|
4574 | string_append (declp, "operator"); |
---|
4575 | string_append (declp, optable[i].out); |
---|
4576 | break; |
---|
4577 | } |
---|
4578 | } |
---|
4579 | } |
---|
4580 | } |
---|
4581 | } |
---|
4582 | |
---|
4583 | /* If a function name was obtained but it's not valid, we were not |
---|
4584 | successful. */ |
---|
4585 | if (LEN_STRING (declp) == 1 && declp->b[0] == '.') |
---|
4586 | return 0; |
---|
4587 | else |
---|
4588 | return 1; |
---|
4589 | } |
---|
4590 | |
---|
4591 | /* a mini string-handling package */ |
---|
4592 | |
---|
4593 | static void |
---|
4594 | string_need (string *s, int n) |
---|
4595 | { |
---|
4596 | int tem; |
---|
4597 | |
---|
4598 | if (s->b == NULL) |
---|
4599 | { |
---|
4600 | if (n < 32) |
---|
4601 | { |
---|
4602 | n = 32; |
---|
4603 | } |
---|
4604 | s->p = s->b = XNEWVEC (char, n); |
---|
4605 | s->e = s->b + n; |
---|
4606 | } |
---|
4607 | else if (s->e - s->p < n) |
---|
4608 | { |
---|
4609 | tem = s->p - s->b; |
---|
4610 | n += tem; |
---|
4611 | n *= 2; |
---|
4612 | s->b = XRESIZEVEC (char, s->b, n); |
---|
4613 | s->p = s->b + tem; |
---|
4614 | s->e = s->b + n; |
---|
4615 | } |
---|
4616 | } |
---|
4617 | |
---|
4618 | static void |
---|
4619 | string_delete (string *s) |
---|
4620 | { |
---|
4621 | if (s->b != NULL) |
---|
4622 | { |
---|
4623 | free (s->b); |
---|
4624 | s->b = s->e = s->p = NULL; |
---|
4625 | } |
---|
4626 | } |
---|
4627 | |
---|
4628 | static void |
---|
4629 | string_init (string *s) |
---|
4630 | { |
---|
4631 | s->b = s->p = s->e = NULL; |
---|
4632 | } |
---|
4633 | |
---|
4634 | static void |
---|
4635 | string_clear (string *s) |
---|
4636 | { |
---|
4637 | s->p = s->b; |
---|
4638 | } |
---|
4639 | |
---|
4640 | #if 0 |
---|
4641 | |
---|
4642 | static int |
---|
4643 | string_empty (string *s) |
---|
4644 | { |
---|
4645 | return (s->b == s->p); |
---|
4646 | } |
---|
4647 | |
---|
4648 | #endif |
---|
4649 | |
---|
4650 | static void |
---|
4651 | string_append (string *p, const char *s) |
---|
4652 | { |
---|
4653 | int n; |
---|
4654 | if (s == NULL || *s == '\0') |
---|
4655 | return; |
---|
4656 | n = strlen (s); |
---|
4657 | string_need (p, n); |
---|
4658 | memcpy (p->p, s, n); |
---|
4659 | p->p += n; |
---|
4660 | } |
---|
4661 | |
---|
4662 | static void |
---|
4663 | string_appends (string *p, string *s) |
---|
4664 | { |
---|
4665 | int n; |
---|
4666 | |
---|
4667 | if (s->b != s->p) |
---|
4668 | { |
---|
4669 | n = s->p - s->b; |
---|
4670 | string_need (p, n); |
---|
4671 | memcpy (p->p, s->b, n); |
---|
4672 | p->p += n; |
---|
4673 | } |
---|
4674 | } |
---|
4675 | |
---|
4676 | static void |
---|
4677 | string_appendn (string *p, const char *s, int n) |
---|
4678 | { |
---|
4679 | if (n != 0) |
---|
4680 | { |
---|
4681 | string_need (p, n); |
---|
4682 | memcpy (p->p, s, n); |
---|
4683 | p->p += n; |
---|
4684 | } |
---|
4685 | } |
---|
4686 | |
---|
4687 | static void |
---|
4688 | string_prepend (string *p, const char *s) |
---|
4689 | { |
---|
4690 | if (s != NULL && *s != '\0') |
---|
4691 | { |
---|
4692 | string_prependn (p, s, strlen (s)); |
---|
4693 | } |
---|
4694 | } |
---|
4695 | |
---|
4696 | static void |
---|
4697 | string_prepends (string *p, string *s) |
---|
4698 | { |
---|
4699 | if (s->b != s->p) |
---|
4700 | { |
---|
4701 | string_prependn (p, s->b, s->p - s->b); |
---|
4702 | } |
---|
4703 | } |
---|
4704 | |
---|
4705 | static void |
---|
4706 | string_prependn (string *p, const char *s, int n) |
---|
4707 | { |
---|
4708 | char *q; |
---|
4709 | |
---|
4710 | if (n != 0) |
---|
4711 | { |
---|
4712 | string_need (p, n); |
---|
4713 | for (q = p->p - 1; q >= p->b; q--) |
---|
4714 | { |
---|
4715 | q[n] = q[0]; |
---|
4716 | } |
---|
4717 | memcpy (p->b, s, n); |
---|
4718 | p->p += n; |
---|
4719 | } |
---|
4720 | } |
---|
4721 | |
---|
4722 | static void |
---|
4723 | string_append_template_idx (string *s, int idx) |
---|
4724 | { |
---|
4725 | char buf[INTBUF_SIZE + 1 /* 'T' */]; |
---|
4726 | sprintf(buf, "T%d", idx); |
---|
4727 | string_append (s, buf); |
---|
4728 | } |
---|