1 /* C language support definitions for GDB, the GNU debugger. 2 3 Copyright (C) 1992-2019 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program 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 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 21 #if !defined (C_LANG_H) 22 #define C_LANG_H 1 23 24 struct ui_file; 25 struct language_arch_info; 26 struct type_print_options; 27 struct parser_state; 28 29 #include "value.h" 30 #include "macroexp.h" 31 #include "parser-defs.h" 32 #include "common/enum-flags.h" 33 34 35 /* The various kinds of C string and character. Note that these 36 values are chosen so that they may be or'd together in certain 37 ways. */ 38 enum c_string_type_values : unsigned 39 { 40 /* An ordinary string: "value". */ 41 C_STRING = 0, 42 /* A wide string: L"value". */ 43 C_WIDE_STRING = 1, 44 /* A 16-bit Unicode string: u"value". */ 45 C_STRING_16 = 2, 46 /* A 32-bit Unicode string: U"value". */ 47 C_STRING_32 = 3, 48 /* An ordinary char: 'v'. This can also be or'd with one of the 49 above to form the corresponding CHAR value from a STRING 50 value. */ 51 C_CHAR = 4, 52 /* A wide char: L'v'. */ 53 C_WIDE_CHAR = 5, 54 /* A 16-bit Unicode char: u'v'. */ 55 C_CHAR_16 = 6, 56 /* A 32-bit Unicode char: U'v'. */ 57 C_CHAR_32 = 7 58 }; 59 60 DEF_ENUM_FLAGS_TYPE (enum c_string_type_values, c_string_type); 61 62 /* Defined in c-exp.y. */ 63 64 extern int c_parse (struct parser_state *); 65 66 extern int c_parse_escape (const char **, struct obstack *); 67 68 /* Defined in c-typeprint.c */ 69 extern void c_print_type (struct type *, const char *, 70 struct ui_file *, int, int, 71 const struct type_print_options *); 72 73 /* Print a type but allow the precise language to be specified. */ 74 75 extern void c_print_type (struct type *, const char *, 76 struct ui_file *, int, int, 77 enum language, 78 const struct type_print_options *); 79 80 extern void c_print_typedef (struct type *, 81 struct symbol *, 82 struct ui_file *); 83 84 extern void c_val_print (struct type *, 85 int, CORE_ADDR, 86 struct ui_file *, int, 87 struct value *, 88 const struct value_print_options *); 89 90 extern void c_value_print (struct value *, struct ui_file *, 91 const struct value_print_options *); 92 93 /* These are in c-lang.c: */ 94 95 extern struct value *evaluate_subexp_c (struct type *expect_type, 96 struct expression *exp, 97 int *pos, 98 enum noside noside); 99 100 extern void c_printchar (int, struct type *, struct ui_file *); 101 102 extern void c_printstr (struct ui_file * stream, 103 struct type *elttype, 104 const gdb_byte *string, 105 unsigned int length, 106 const char *user_encoding, 107 int force_ellipses, 108 const struct value_print_options *options); 109 110 extern void c_language_arch_info (struct gdbarch *gdbarch, 111 struct language_arch_info *lai); 112 113 extern const struct exp_descriptor exp_descriptor_c; 114 115 extern void c_emit_char (int c, struct type *type, 116 struct ui_file *stream, int quoter); 117 118 extern const struct op_print c_op_print_tab[]; 119 120 extern gdb::unique_xmalloc_ptr<char> c_watch_location_expression 121 (struct type *type, CORE_ADDR addr); 122 123 /* These are in c-typeprint.c: */ 124 125 extern void c_type_print_base (struct type *, struct ui_file *, 126 int, int, const struct type_print_options *); 127 128 /* These are in cp-valprint.c */ 129 130 extern void cp_print_class_member (const gdb_byte *, struct type *, 131 struct ui_file *, const char *); 132 133 extern void cp_print_value_fields (struct type *, struct type *, 134 LONGEST, CORE_ADDR, 135 struct ui_file *, int, 136 struct value *, 137 const struct value_print_options *, 138 struct type **, int); 139 140 extern void cp_print_value_fields_rtti (struct type *, 141 const gdb_byte *, LONGEST, CORE_ADDR, 142 struct ui_file *, int, 143 struct value *, 144 const struct value_print_options *, 145 struct type **, int); 146 147 extern int cp_is_vtbl_ptr_type (struct type *); 148 149 extern int cp_is_vtbl_member (struct type *); 150 151 /* These are in c-valprint.c. */ 152 153 extern int c_textual_element_type (struct type *, char); 154 155 /* Create a new instance of the C compiler and return it. The new 156 compiler is owned by the caller and must be freed using the destroy 157 method. This function never returns NULL, but rather throws an 158 exception on failure. This is suitable for use as the 159 la_get_compile_instance language method. */ 160 161 extern compile_instance *c_get_compile_context (void); 162 163 /* Create a new instance of the C++ compiler and return it. The new 164 compiler is owned by the caller and must be freed using the destroy 165 method. This function never returns NULL, but rather throws an 166 exception on failure. This is suitable for use as the 167 la_get_compile_instance language method. */ 168 169 extern compile_instance *cplus_get_compile_context (); 170 171 /* This takes the user-supplied text and returns a new bit of code to 172 compile. 173 174 This is used as the la_compute_program language method; see that 175 for a description of the arguments. */ 176 177 extern std::string c_compute_program (compile_instance *inst, 178 const char *input, 179 struct gdbarch *gdbarch, 180 const struct block *expr_block, 181 CORE_ADDR expr_pc); 182 183 /* This takes the user-supplied text and returns a new bit of code to compile. 184 185 This is used as the la_compute_program language method; see that 186 for a description of the arguments. */ 187 188 extern std::string cplus_compute_program (compile_instance *inst, 189 const char *input, 190 struct gdbarch *gdbarch, 191 const struct block *expr_block, 192 CORE_ADDR expr_pc); 193 194 #endif /* !defined (C_LANG_H) */ 195