1 /* Internal demangler interface for g++ V3 ABI. 2 Copyright (C) 2003-2017 Free Software Foundation, Inc. 3 Written by Ian Lance Taylor <ian (at) wasabisystems.com>. 4 5 This file is part of the libiberty library, which is part of GCC. 6 7 This file is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 In addition to the permissions in the GNU General Public License, the 13 Free Software Foundation gives you unlimited permission to link the 14 compiled version of this file into combinations with other programs, 15 and to distribute those combinations without any restriction coming 16 from the use of this file. (The General Public License restrictions 17 do apply in other respects; for example, they cover modification of 18 the file, and distribution when not linked into a combined 19 executable.) 20 21 This program is distributed in the hope that it will be useful, 22 but WITHOUT ANY WARRANTY; without even the implied warranty of 23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 GNU General Public License for more details. 25 26 You should have received a copy of the GNU General Public License 27 along with this program; if not, write to the Free Software 28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. 29 */ 30 31 /* This file provides some definitions shared by cp-demangle.c and 32 cp-demint.c. It should not be included by any other files. */ 33 34 /* Information we keep for operators. */ 35 36 struct demangle_operator_info 37 { 38 /* Mangled name. */ 39 const char *code; 40 /* Real name. */ 41 const char *name; 42 /* Length of real name. */ 43 int len; 44 /* Number of arguments. */ 45 int args; 46 }; 47 48 /* How to print the value of a builtin type. */ 49 50 enum d_builtin_type_print 51 { 52 /* Print as (type)val. */ 53 D_PRINT_DEFAULT, 54 /* Print as integer. */ 55 D_PRINT_INT, 56 /* Print as unsigned integer, with trailing "u". */ 57 D_PRINT_UNSIGNED, 58 /* Print as long, with trailing "l". */ 59 D_PRINT_LONG, 60 /* Print as unsigned long, with trailing "ul". */ 61 D_PRINT_UNSIGNED_LONG, 62 /* Print as long long, with trailing "ll". */ 63 D_PRINT_LONG_LONG, 64 /* Print as unsigned long long, with trailing "ull". */ 65 D_PRINT_UNSIGNED_LONG_LONG, 66 /* Print as bool. */ 67 D_PRINT_BOOL, 68 /* Print as float--put value in square brackets. */ 69 D_PRINT_FLOAT, 70 /* Print in usual way, but here to detect void. */ 71 D_PRINT_VOID 72 }; 73 74 /* Information we keep for a builtin type. */ 75 76 struct demangle_builtin_type_info 77 { 78 /* Type name. */ 79 const char *name; 80 /* Length of type name. */ 81 int len; 82 /* Type name when using Java. */ 83 const char *java_name; 84 /* Length of java name. */ 85 int java_len; 86 /* How to print a value of this type. */ 87 enum d_builtin_type_print print; 88 }; 89 90 /* The information structure we pass around. */ 91 92 struct d_info 93 { 94 /* The string we are demangling. */ 95 const char *s; 96 /* The end of the string we are demangling. */ 97 const char *send; 98 /* The options passed to the demangler. */ 99 int options; 100 /* The next character in the string to consider. */ 101 const char *n; 102 /* The array of components. */ 103 struct demangle_component *comps; 104 /* The index of the next available component. */ 105 int next_comp; 106 /* The number of available component structures. */ 107 int num_comps; 108 /* The array of substitutions. */ 109 struct demangle_component **subs; 110 /* The index of the next substitution. */ 111 int next_sub; 112 /* The number of available entries in the subs array. */ 113 int num_subs; 114 /* The number of substitutions which we actually made from the subs 115 array, plus the number of template parameter references we 116 saw. */ 117 int did_subs; 118 /* The last name we saw, for constructors and destructors. */ 119 struct demangle_component *last_name; 120 /* A running total of the length of large expansions from the 121 mangled name to the demangled name, such as standard 122 substitutions and builtin types. */ 123 int expansion; 124 /* Non-zero if we are parsing an expression. */ 125 int is_expression; 126 /* Non-zero if we are parsing the type operand of a conversion 127 operator, but not when in an expression. */ 128 int is_conversion; 129 }; 130 131 /* To avoid running past the ending '\0', don't: 132 - call d_peek_next_char if d_peek_char returned '\0' 133 - call d_advance with an 'i' that is too large 134 - call d_check_char(di, '\0') 135 Everything else is safe. */ 136 #define d_peek_char(di) (*((di)->n)) 137 #ifndef CHECK_DEMANGLER 138 # define d_peek_next_char(di) ((di)->n[1]) 139 # define d_advance(di, i) ((di)->n += (i)) 140 #endif 141 #define d_check_char(di, c) (d_peek_char(di) == c ? ((di)->n++, 1) : 0) 142 #define d_next_char(di) (d_peek_char(di) == '\0' ? '\0' : *((di)->n++)) 143 #define d_str(di) ((di)->n) 144 145 #ifdef CHECK_DEMANGLER 146 static inline char 147 d_peek_next_char (const struct d_info *di) 148 { 149 if (!di->n[0]) 150 abort (); 151 return di->n[1]; 152 } 153 154 static inline void 155 d_advance (struct d_info *di, int i) 156 { 157 if (i < 0) 158 abort (); 159 while (i--) 160 { 161 if (!di->n[0]) 162 abort (); 163 di->n++; 164 } 165 } 166 #endif 167 168 /* Functions and arrays in cp-demangle.c which are referenced by 169 functions in cp-demint.c. */ 170 #ifdef IN_GLIBCPP_V3 171 #define CP_STATIC_IF_GLIBCPP_V3 static 172 #else 173 #define CP_STATIC_IF_GLIBCPP_V3 extern 174 #endif 175 176 #ifndef IN_GLIBCPP_V3 177 extern const struct demangle_operator_info cplus_demangle_operators[]; 178 #endif 179 180 #define D_BUILTIN_TYPE_COUNT (33) 181 182 CP_STATIC_IF_GLIBCPP_V3 183 const struct demangle_builtin_type_info 184 cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT]; 185 186 CP_STATIC_IF_GLIBCPP_V3 187 struct demangle_component * 188 cplus_demangle_mangled_name (struct d_info *, int); 189 190 CP_STATIC_IF_GLIBCPP_V3 191 struct demangle_component * 192 cplus_demangle_type (struct d_info *); 193 194 extern void 195 cplus_demangle_init_info (const char *, int, size_t, struct d_info *); 196 197 /* cp-demangle.c needs to define this a little differently */ 198 #undef CP_STATIC_IF_GLIBCPP_V3 199
