1 /* Helper routines for C++ support in GDB. 2 Copyright (C) 2002-2023 Free Software Foundation, Inc. 3 4 Contributed by MontaVista Software. 5 Namespace support contributed by David Carlton. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #ifndef CP_SUPPORT_H 23 #define CP_SUPPORT_H 24 25 /* We need this for 'domain_enum', alas... */ 26 27 #include "symtab.h" 28 #include "gdbsupport/gdb_vecs.h" 29 #include "gdbsupport/gdb_obstack.h" 30 #include "gdbsupport/array-view.h" 31 #include <vector> 32 33 /* Opaque declarations. */ 34 35 struct symbol; 36 struct block; 37 struct buildsym_compunit; 38 struct objfile; 39 struct type; 40 struct demangle_component; 41 struct using_direct; 42 43 /* A string representing the name of the anonymous namespace used in GDB. */ 44 45 #define CP_ANONYMOUS_NAMESPACE_STR "(anonymous namespace)" 46 47 /* The length of the string representing the anonymous namespace. */ 48 49 #define CP_ANONYMOUS_NAMESPACE_LEN 21 50 51 /* A string representing the start of an operator name. */ 52 53 #define CP_OPERATOR_STR "operator" 54 55 /* The length of CP_OPERATOR_STR. */ 56 57 #define CP_OPERATOR_LEN 8 58 59 /* The result of parsing a name. */ 60 61 struct demangle_parse_info 62 { 63 demangle_parse_info (); 64 65 ~demangle_parse_info (); 66 67 /* The memory used during the parse. */ 68 struct demangle_info *info; 69 70 /* The result of the parse. */ 71 struct demangle_component *tree; 72 73 /* Any temporary memory used during typedef replacement. */ 74 struct obstack obstack; 75 }; 76 77 78 /* Functions from cp-support.c. */ 79 80 extern gdb::unique_xmalloc_ptr<char> cp_canonicalize_string 81 (const char *string); 82 83 extern gdb::unique_xmalloc_ptr<char> cp_canonicalize_string_no_typedefs 84 (const char *string); 85 86 typedef const char *(canonicalization_ftype) (struct type *, void *); 87 88 extern gdb::unique_xmalloc_ptr<char> cp_canonicalize_string_full 89 (const char *string, canonicalization_ftype *finder, void *data); 90 91 extern char *cp_class_name_from_physname (const char *physname); 92 93 extern char *method_name_from_physname (const char *physname); 94 95 extern unsigned int cp_find_first_component (const char *name); 96 97 extern unsigned int cp_entire_prefix_len (const char *name); 98 99 extern gdb::unique_xmalloc_ptr<char> cp_func_name (const char *full_name); 100 101 extern gdb::unique_xmalloc_ptr<char> cp_remove_params 102 (const char *demanged_name); 103 104 /* DEMANGLED_NAME is the name of a function, (optionally) including 105 parameters and (optionally) a return type. Return the name of the 106 function without parameters or return type, or NULL if we can not 107 parse the name. If COMPLETION_MODE is true, then tolerate a 108 non-existing or unbalanced parameter list. */ 109 extern gdb::unique_xmalloc_ptr<char> cp_remove_params_if_any 110 (const char *demangled_name, bool completion_mode); 111 112 extern std::vector<symbol *> make_symbol_overload_list (const char *, 113 const char *); 114 115 extern void add_symbol_overload_list_adl 116 (gdb::array_view<type *> arg_types, 117 const char *func_name, 118 std::vector<symbol *> *overload_list); 119 120 extern struct type *cp_lookup_rtti_type (const char *name, 121 const struct block *block); 122 123 /* Produce an unsigned hash value from SEARCH_NAME that is compatible 124 with cp_symbol_name_matches. Only the last component in 125 "foo::bar::function()" is considered for hashing purposes (i.e., 126 the entire prefix is skipped), so that later on looking up for 127 "function" or "bar::function" in all namespaces is possible. */ 128 extern unsigned int cp_search_name_hash (const char *search_name); 129 130 /* Implement the "get_symbol_name_matcher" language_defn method for C++. */ 131 extern symbol_name_matcher_ftype *cp_get_symbol_name_matcher 132 (const lookup_name_info &lookup_name); 133 134 /* Functions/variables from cp-namespace.c. */ 135 136 extern int cp_is_in_anonymous (const char *symbol_name); 137 138 extern void cp_scan_for_anonymous_namespaces (struct buildsym_compunit *, 139 const struct symbol *symbol, 140 struct objfile *objfile); 141 142 extern struct block_symbol cp_lookup_symbol_nonlocal 143 (const struct language_defn *langdef, 144 const char *name, 145 const struct block *block, 146 const domain_enum domain); 147 148 extern struct block_symbol 149 cp_lookup_symbol_namespace (const char *the_namespace, 150 const char *name, 151 const struct block *block, 152 const domain_enum domain); 153 154 extern struct block_symbol cp_lookup_symbol_imports_or_template 155 (const char *scope, 156 const char *name, 157 const struct block *block, 158 const domain_enum domain); 159 160 extern struct block_symbol 161 cp_lookup_nested_symbol (struct type *parent_type, 162 const char *nested_name, 163 const struct block *block, 164 const domain_enum domain); 165 166 struct type *cp_lookup_transparent_type (const char *name); 167 168 /* See description in cp-namespace.c. */ 169 170 struct type *cp_find_type_baseclass_by_name (struct type *parent_type, 171 const char *name); 172 173 /* Functions from cp-name-parser.y. */ 174 175 extern std::unique_ptr<demangle_parse_info> cp_demangled_name_to_comp 176 (const char *demangled_name, std::string *errmsg); 177 178 /* Convert RESULT to a string. ESTIMATED_LEN is used only as a guide 179 to the length of the result. */ 180 181 extern gdb::unique_xmalloc_ptr<char> cp_comp_to_string 182 (struct demangle_component *result, int estimated_len); 183 184 extern void cp_merge_demangle_parse_infos (struct demangle_parse_info *, 185 struct demangle_component *, 186 struct demangle_parse_info *); 187 188 /* The list of "maint cplus" commands. */ 189 190 extern struct cmd_list_element *maint_cplus_cmd_list; 191 192 /* Wrappers for bfd and libiberty demangling entry points. Note they 193 all force DMGL_VERBOSE so that callers don't need to. This is so 194 that GDB consistently uses DMGL_VERBOSE throughout -- we want 195 libiberty's demangler to expand standard substitutions to their 196 full template name. */ 197 198 /* A wrapper for bfd_demangle. */ 199 200 gdb::unique_xmalloc_ptr<char> gdb_demangle (const char *name, int options); 201 202 /* A wrapper for cplus_demangle_print. */ 203 204 extern char *gdb_cplus_demangle_print (int options, 205 struct demangle_component *tree, 206 int estimated_length, 207 size_t *p_allocated_size); 208 209 /* Find an instance of the character C in the string S that is outside 210 of all parenthesis pairs, single-quoted strings, and double-quoted 211 strings. Also, ignore the char within a template name, like a ',' 212 within foo<int, int>. */ 213 214 extern const char *find_toplevel_char (const char *s, char c); 215 216 #endif /* CP_SUPPORT_H */ 217