1 /* Ada 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 #if !defined (ADA_LANG_H) 21 #define ADA_LANG_H 1 22 23 struct frame_info; 24 struct inferior; 25 struct type_print_options; 26 struct parser_state; 27 28 #include "value.h" 29 #include "gdbtypes.h" 30 #include "breakpoint.h" 31 #include "common/vec.h" 32 33 /* Names of specific files known to be part of the runtime 34 system and that might consider (confusing) debugging information. 35 Each name (a basic regular expression string) is followed by a 36 comma. FIXME: Should be part of a configuration file. */ 37 #if defined (__linux__) 38 #define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \ 39 "^[agis]-.*\\.ad[bs]$", \ 40 "/lib.*/libpthread\\.so[.0-9]*$", "/lib.*/libpthread\\.a$", \ 41 "/lib.*/libc\\.so[.0-9]*$", "/lib.*/libc\\.a$", 42 #endif 43 44 #if !defined (ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS) 45 #define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \ 46 "^unwind-seh.c$", \ 47 "^[agis]-.*\\.ad[bs]$", 48 #endif 49 50 /* Names of compiler-generated auxiliary functions probably of no 51 interest to users. Each name (a basic regular expression string) 52 is followed by a comma. */ 53 #define ADA_KNOWN_AUXILIARY_FUNCTION_NAME_PATTERNS \ 54 "___clean[.$a-zA-Z0-9_]*$", \ 55 "___finalizer[.$a-zA-Z0-9_]*$", 56 57 /* The maximum number of frame levels searched for non-local, 58 * non-global symbols. This limit exists as a precaution to prevent 59 * infinite search loops when the stack is screwed up. */ 60 #define MAX_ENCLOSING_FRAME_LEVELS 7 61 62 /* Maximum number of steps followed in looking for the ultimate 63 referent of a renaming. This prevents certain infinite loops that 64 can otherwise result. */ 65 #define MAX_RENAMING_CHAIN_LENGTH 10 66 67 struct block; 68 69 /* Corresponding encoded/decoded names and opcodes for Ada user-definable 70 operators. */ 71 struct ada_opname_map 72 { 73 const char *encoded; 74 const char *decoded; 75 enum exp_opcode op; 76 }; 77 78 /* Table of Ada operators in encoded and decoded forms. */ 79 /* Defined in ada-lang.c */ 80 extern const struct ada_opname_map ada_opname_table[]; 81 82 /* Denotes a type of renaming symbol (see ada_parse_renaming). */ 83 enum ada_renaming_category 84 { 85 /* Indicates a symbol that does not encode a renaming. */ 86 ADA_NOT_RENAMING, 87 88 /* For symbols declared 89 Foo : TYPE renamed OBJECT; */ 90 ADA_OBJECT_RENAMING, 91 92 /* For symbols declared 93 Foo : exception renames EXCEPTION; */ 94 ADA_EXCEPTION_RENAMING, 95 /* For packages declared 96 package Foo renames PACKAGE; */ 97 ADA_PACKAGE_RENAMING, 98 /* For subprograms declared 99 SUBPROGRAM_SPEC renames SUBPROGRAM; 100 (Currently not used). */ 101 ADA_SUBPROGRAM_RENAMING 102 }; 103 104 /* The different types of catchpoints that we introduced for catching 105 Ada exceptions. */ 106 107 enum ada_exception_catchpoint_kind 108 { 109 ada_catch_exception, 110 ada_catch_exception_unhandled, 111 ada_catch_assert, 112 ada_catch_handlers 113 }; 114 115 /* Ada task structures. */ 116 117 struct ada_task_info 118 { 119 /* The PTID of the thread that this task runs on. This ptid is computed 120 in a target-dependent way from the associated Task Control Block. */ 121 ptid_t ptid; 122 123 /* The ID of the task. */ 124 CORE_ADDR task_id; 125 126 /* The name of the task. */ 127 char name[257]; 128 129 /* The current state of the task. */ 130 int state; 131 132 /* The priority associated to the task. */ 133 int priority; 134 135 /* If non-zero, the task ID of the parent task. */ 136 CORE_ADDR parent; 137 138 /* If the task is waiting on a task entry, this field contains 139 the ID of the other task. Zero otherwise. */ 140 CORE_ADDR called_task; 141 142 /* If the task is accepting a rendezvous with another task, this field 143 contains the ID of the calling task. Zero otherwise. */ 144 CORE_ADDR caller_task; 145 146 /* The CPU on which the task is running. This is dependent on 147 the runtime actually providing that info, which is not always 148 the case. Normally, we should be able to count on it on 149 bare-metal targets. */ 150 int base_cpu; 151 }; 152 153 /* Assuming V points to an array of S objects, make sure that it contains at 154 least M objects, updating V and S as necessary. */ 155 156 #define GROW_VECT(v, s, m) \ 157 if ((s) < (m)) (v) = (char *) grow_vect (v, &(s), m, sizeof *(v)); 158 159 extern void *grow_vect (void *, size_t *, size_t, int); 160 161 extern void ada_ensure_varsize_limit (const struct type *type); 162 163 extern int ada_get_field_index (const struct type *type, 164 const char *field_name, 165 int maybe_missing); 166 167 extern int ada_parse (struct parser_state *); /* Defined in ada-exp.y */ 168 169 /* Defined in ada-typeprint.c */ 170 extern void ada_print_type (struct type *, const char *, struct ui_file *, int, 171 int, const struct type_print_options *); 172 173 extern void ada_print_typedef (struct type *type, struct symbol *new_symbol, 174 struct ui_file *stream); 175 176 extern void ada_val_print (struct type *, int, CORE_ADDR, 177 struct ui_file *, int, 178 struct value *, 179 const struct value_print_options *); 180 181 extern void ada_value_print (struct value *, struct ui_file *, 182 const struct value_print_options *); 183 184 /* Defined in ada-lang.c */ 185 186 extern void ada_emit_char (int, struct type *, struct ui_file *, int, int); 187 188 extern void ada_printchar (int, struct type *, struct ui_file *); 189 190 extern void ada_printstr (struct ui_file *, struct type *, const gdb_byte *, 191 unsigned int, const char *, int, 192 const struct value_print_options *); 193 194 struct value *ada_convert_actual (struct value *actual, 195 struct type *formal_type0); 196 197 extern bool ada_is_access_to_unconstrained_array (struct type *type); 198 199 extern struct value *ada_value_subscript (struct value *, int, 200 struct value **); 201 202 extern void ada_fixup_array_indexes_type (struct type *index_desc_type); 203 204 extern struct type *ada_array_element_type (struct type *, int); 205 206 extern int ada_array_arity (struct type *); 207 208 struct type *ada_type_of_array (struct value *, int); 209 210 extern struct value *ada_coerce_to_simple_array_ptr (struct value *); 211 212 struct value *ada_coerce_to_simple_array (struct value *); 213 214 extern int ada_is_simple_array_type (struct type *); 215 216 extern int ada_is_array_descriptor_type (struct type *); 217 218 extern int ada_is_bogus_array_descriptor (struct type *); 219 220 extern LONGEST ada_discrete_type_low_bound (struct type *); 221 222 extern LONGEST ada_discrete_type_high_bound (struct type *); 223 224 extern struct value *ada_get_decoded_value (struct value *value); 225 226 extern struct type *ada_get_decoded_type (struct type *type); 227 228 extern const char *ada_decode_symbol (const struct general_symbol_info *); 229 230 extern const char *ada_decode (const char*); 231 232 extern enum language ada_update_initial_language (enum language); 233 234 extern int ada_lookup_symbol_list (const char *, const struct block *, 235 domain_enum, 236 std::vector<struct block_symbol> *); 237 238 extern char *ada_fold_name (const char *); 239 240 extern struct block_symbol ada_lookup_symbol (const char *, 241 const struct block *, 242 domain_enum, int *); 243 244 extern void ada_lookup_encoded_symbol 245 (const char *name, const struct block *block, domain_enum domain, 246 struct block_symbol *symbol_info); 247 248 extern struct bound_minimal_symbol ada_lookup_simple_minsym (const char *); 249 250 extern void ada_fill_in_ada_prototype (struct symbol *); 251 252 extern int user_select_syms (struct block_symbol *, int, int); 253 254 extern int get_selections (int *, int, int, int, const char *); 255 256 extern int ada_scan_number (const char *, int, LONGEST *, int *); 257 258 extern struct type *ada_parent_type (struct type *); 259 260 extern int ada_is_ignored_field (struct type *, int); 261 262 extern int ada_is_constrained_packed_array_type (struct type *); 263 264 extern struct value *ada_value_primitive_packed_val (struct value *, 265 const gdb_byte *, 266 long, int, int, 267 struct type *); 268 269 extern struct type *ada_coerce_to_simple_array_type (struct type *); 270 271 extern int ada_is_character_type (struct type *); 272 273 extern int ada_is_string_type (struct type *); 274 275 extern int ada_is_tagged_type (struct type *, int); 276 277 extern int ada_is_tag_type (struct type *); 278 279 extern struct type *ada_tag_type (struct value *); 280 281 extern struct value *ada_value_tag (struct value *); 282 283 extern const char *ada_tag_name (struct value *); 284 285 extern struct value *ada_tag_value_at_base_address (struct value *obj); 286 287 extern int ada_is_parent_field (struct type *, int); 288 289 extern int ada_is_wrapper_field (struct type *, int); 290 291 extern int ada_is_variant_part (struct type *, int); 292 293 extern struct type *ada_variant_discrim_type (struct type *, struct type *); 294 295 extern int ada_is_others_clause (struct type *, int); 296 297 extern int ada_in_variant (LONGEST, struct type *, int); 298 299 extern const char *ada_variant_discrim_name (struct type *); 300 301 extern struct value *ada_value_struct_elt (struct value *, const char *, int); 302 303 extern int ada_is_aligner_type (struct type *); 304 305 extern struct type *ada_aligned_type (struct type *); 306 307 extern const gdb_byte *ada_aligned_value_addr (struct type *, 308 const gdb_byte *); 309 310 extern const char *ada_attribute_name (enum exp_opcode); 311 312 extern int ada_is_fixed_point_type (struct type *); 313 314 extern int ada_is_system_address_type (struct type *); 315 316 extern struct value *ada_delta (struct type *); 317 318 extern struct value *ada_scaling_factor (struct type *); 319 320 extern struct type *ada_system_address_type (void); 321 322 extern int ada_which_variant_applies (struct type *, struct type *, 323 const gdb_byte *); 324 325 extern struct type *ada_to_fixed_type (struct type *, const gdb_byte *, 326 CORE_ADDR, struct value *, 327 int check_tag); 328 329 extern struct value *ada_to_fixed_value (struct value *val); 330 331 extern struct type *ada_template_to_fixed_record_type_1 (struct type *type, 332 const gdb_byte *valaddr, 333 CORE_ADDR address, 334 struct value *dval0, 335 int keep_dynamic_fields); 336 337 extern int ada_name_prefix_len (const char *); 338 339 extern const char *ada_type_name (struct type *); 340 341 extern struct type *ada_find_parallel_type (struct type *, 342 const char *suffix); 343 344 extern bool get_int_var_value (const char *, LONGEST &value); 345 346 extern struct symbol *ada_find_renaming_symbol (struct symbol *name_sym, 347 const struct block *block); 348 349 extern int ada_prefer_type (struct type *, struct type *); 350 351 extern struct type *ada_get_base_type (struct type *); 352 353 extern struct type *ada_check_typedef (struct type *); 354 355 extern char *ada_encode (const char *); 356 357 extern const char *ada_enum_name (const char *); 358 359 extern int ada_is_modular_type (struct type *); 360 361 extern ULONGEST ada_modulus (struct type *); 362 363 extern struct value *ada_value_ind (struct value *); 364 365 extern void ada_print_scalar (struct type *, LONGEST, struct ui_file *); 366 367 extern int ada_is_range_type_name (const char *); 368 369 extern enum ada_renaming_category ada_parse_renaming (struct symbol *, 370 const char **, 371 int *, const char **); 372 373 extern void ada_find_printable_frame (struct frame_info *fi); 374 375 extern char *ada_breakpoint_rewrite (char *, int *); 376 377 extern char *ada_main_name (void); 378 379 extern void create_ada_exception_catchpoint 380 (struct gdbarch *gdbarch, enum ada_exception_catchpoint_kind ex_kind, 381 const std::string &excep_string, const std::string &cond_string, int tempflag, 382 int disabled, int from_tty); 383 384 /* Some information about a given Ada exception. */ 385 386 struct ada_exc_info 387 { 388 /* The name of the exception. */ 389 const char *name; 390 391 /* The address of the symbol corresponding to that exception. */ 392 CORE_ADDR addr; 393 394 bool operator< (const ada_exc_info &) const; 395 bool operator== (const ada_exc_info &) const; 396 }; 397 398 extern std::vector<ada_exc_info> ada_exceptions_list (const char *regexp); 399 400 /* Tasking-related: ada-tasks.c */ 401 402 extern int valid_task_id (int); 403 404 extern struct ada_task_info *ada_get_task_info_from_ptid (ptid_t ptid); 405 406 extern int ada_get_task_number (thread_info *thread); 407 408 typedef void (ada_task_list_iterator_ftype) (struct ada_task_info *task); 409 extern void iterate_over_live_ada_tasks 410 (ada_task_list_iterator_ftype *iterator); 411 412 extern const char *ada_get_tcb_types_info (void); 413 414 extern void print_ada_task_info (struct ui_out *uiout, 415 char *taskno_str, 416 struct inferior *inf); 417 418 #endif 419