gdb/ada-lang.h

   1 /* Ada language support definitions for GDB, the GNU debugger.
   2
   3    Copyright (C) 1992-2018 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 "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 extern void ada_yyerror (const char *); /* Defined in ada-exp.y */
 170
 171                         /* Defined in ada-typeprint.c */
 172 extern void ada_print_type (struct type *, const char *, struct ui_file *, int,
 173                             int, const struct type_print_options *);
 174
 175 extern void ada_print_typedef (struct type *type, struct symbol *new_symbol,
 176                                struct ui_file *stream);
 177
 178 extern void ada_val_print (struct type *, int, CORE_ADDR,
 179                            struct ui_file *, int,
 180                            struct value *,
 181                            const struct value_print_options *);
 182
 183 extern void ada_value_print (struct value *, struct ui_file *,
 184                              const struct value_print_options *);
 185
 186                                 /* Defined in ada-lang.c */
 187
 188 extern void ada_emit_char (int, struct type *, struct ui_file *, int, int);
 189
 190 extern void ada_printchar (int, struct type *, struct ui_file *);
 191
 192 extern void ada_printstr (struct ui_file *, struct type *, const gdb_byte *,
 193                           unsigned int, const char *, int,
 194                           const struct value_print_options *);
 195
 196 struct value *ada_convert_actual (struct value *actual,
 197                                   struct type *formal_type0);
 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, struct block_symbol**);
 236
 237 extern char *ada_fold_name (const char *);
 238
 239 extern struct block_symbol ada_lookup_symbol (const char *,
 240                                               const struct block *,
 241                                               domain_enum, int *);
 242
 243 extern void ada_lookup_encoded_symbol
 244   (const char *name, const struct block *block, domain_enum domain,
 245    struct block_symbol *symbol_info);
 246
 247 extern struct bound_minimal_symbol ada_lookup_simple_minsym (const char *);
 248
 249 extern void ada_fill_in_ada_prototype (struct symbol *);
 250
 251 extern int user_select_syms (struct block_symbol *, int, int);
 252
 253 extern int get_selections (int *, int, int, int, const char *);
 254
 255 extern int ada_scan_number (const char *, int, LONGEST *, int *);
 256
 257 extern struct type *ada_parent_type (struct type *);
 258
 259 extern int ada_is_ignored_field (struct type *, int);
 260
 261 extern int ada_is_constrained_packed_array_type (struct type *);
 262
 263 extern struct value *ada_value_primitive_packed_val (struct value *,
 264                                                      const gdb_byte *,
 265                                                      long, int, int,
 266                                                      struct type *);
 267
 268 extern struct type *ada_coerce_to_simple_array_type (struct type *);
 269
 270 extern int ada_is_character_type (struct type *);
 271
 272 extern int ada_is_string_type (struct type *);
 273
 274 extern int ada_is_tagged_type (struct type *, int);
 275
 276 extern int ada_is_tag_type (struct type *);
 277
 278 extern struct type *ada_tag_type (struct value *);
 279
 280 extern struct value *ada_value_tag (struct value *);
 281
 282 extern const char *ada_tag_name (struct value *);
 283
 284 extern struct value *ada_tag_value_at_base_address (struct value *obj);
 285
 286 extern int ada_is_parent_field (struct type *, int);
 287
 288 extern int ada_is_wrapper_field (struct type *, int);
 289
 290 extern int ada_is_variant_part (struct type *, int);
 291
 292 extern struct type *ada_variant_discrim_type (struct type *, struct type *);
 293
 294 extern int ada_is_others_clause (struct type *, int);
 295
 296 extern int ada_in_variant (LONGEST, struct type *, int);
 297
 298 extern const char *ada_variant_discrim_name (struct type *);
 299
 300 extern struct value *ada_value_struct_elt (struct value *, const char *, int);
 301
 302 extern int ada_is_aligner_type (struct type *);
 303
 304 extern struct type *ada_aligned_type (struct type *);
 305
 306 extern const gdb_byte *ada_aligned_value_addr (struct type *,
 307                                                const gdb_byte *);
 308
 309 extern const char *ada_attribute_name (enum exp_opcode);
 310
 311 extern int ada_is_fixed_point_type (struct type *);
 312
 313 extern int ada_is_system_address_type (struct type *);
 314
 315 extern struct value *ada_delta (struct type *);
 316
 317 extern struct value *ada_scaling_factor (struct type *);
 318
 319 extern struct type *ada_system_address_type (void);
 320
 321 extern int ada_which_variant_applies (struct type *, struct type *,
 322                                       const gdb_byte *);
 323
 324 extern struct type *ada_to_fixed_type (struct type *, const gdb_byte *,
 325                                        CORE_ADDR, struct value *,
 326                                        int check_tag);
 327
 328 extern struct value *ada_to_fixed_value (struct value *val);
 329
 330 extern struct type *ada_template_to_fixed_record_type_1 (struct type *type,
 331                                                          const gdb_byte *valaddr,
 332                                                          CORE_ADDR address,
 333                                                          struct value *dval0,
 334                                                          int keep_dynamic_fields);
 335
 336 extern int ada_name_prefix_len (const char *);
 337
 338 extern const char *ada_type_name (struct type *);
 339
 340 extern struct type *ada_find_parallel_type (struct type *,
 341                                             const char *suffix);
 342
 343 extern bool get_int_var_value (const char *, LONGEST &value);
 344
 345 extern struct symbol *ada_find_renaming_symbol (struct symbol *name_sym,
 346                                                 const struct block *block);
 347
 348 extern int ada_prefer_type (struct type *, struct type *);
 349
 350 extern struct type *ada_get_base_type (struct type *);
 351
 352 extern struct type *ada_check_typedef (struct type *);
 353
 354 extern char *ada_encode (const char *);
 355
 356 extern const char *ada_enum_name (const char *);
 357
 358 extern int ada_is_modular_type (struct type *);
 359
 360 extern ULONGEST ada_modulus (struct type *);
 361
 362 extern struct value *ada_value_ind (struct value *);
 363
 364 extern void ada_print_scalar (struct type *, LONGEST, struct ui_file *);
 365
 366 extern int ada_is_range_type_name (const char *);
 367
 368 extern enum ada_renaming_category ada_parse_renaming (struct symbol *,
 369                                                       const char **,
 370                                                       int *, const char **);
 371
 372 extern void ada_find_printable_frame (struct frame_info *fi);
 373
 374 extern char *ada_breakpoint_rewrite (char *, int *);
 375
 376 extern char *ada_main_name (void);
 377
 378 extern void create_ada_exception_catchpoint
 379   (struct gdbarch *gdbarch, enum ada_exception_catchpoint_kind ex_kind,
 380    char *excep_string, const std::string &cond_string, int tempflag,
 381    int disabled, int from_tty);
 382
 383 /* Some information about a given Ada exception.  */
 384
 385 struct ada_exc_info
 386 {
 387   /* The name of the exception.  */
 388   const char *name;
 389
 390   /* The address of the symbol corresponding to that exception.  */
 391   CORE_ADDR addr;
 392
 393   bool operator< (const ada_exc_info &) const;
 394   bool operator== (const ada_exc_info &) const;
 395 };
 396
 397 extern std::vector<ada_exc_info> ada_exceptions_list (const char *regexp);
 398
 399 /* Tasking-related: ada-tasks.c */
 400
 401 extern int valid_task_id (int);
 402
 403 extern struct ada_task_info *ada_get_task_info_from_ptid (ptid_t ptid);
 404
 405 extern int ada_get_task_number (ptid_t);
 406
 407 typedef void (ada_task_list_iterator_ftype) (struct ada_task_info *task);
 408 extern void iterate_over_live_ada_tasks
 409   (ada_task_list_iterator_ftype *iterator);
 410
 411 extern const char *ada_get_tcb_types_info (void);
 412
 413 extern int ada_build_task_list (void);
 414
 415 extern void print_ada_task_info (struct ui_out *uiout,
 416                                  char *taskno_str,
 417                                  struct inferior *inf);
 418
 419 #endif