gdb/ada-lang.h

   1 /* Ada language support definitions for GDB, the GNU debugger.
   2
   3    Copyright (C) 1992-2017 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 };
 113
 114 /* Ada task structures.  */
 115
 116 struct ada_task_info
 117 {
 118   /* The PTID of the thread that this task runs on.  This ptid is computed
 119      in a target-dependent way from the associated Task Control Block.  */
 120   ptid_t ptid;
 121
 122   /* The ID of the task.  */
 123   CORE_ADDR task_id;
 124
 125   /* The name of the task.  */
 126   char name[257];
 127
 128   /* The current state of the task.  */
 129   int state;
 130
 131   /* The priority associated to the task.  */
 132   int priority;
 133
 134   /* If non-zero, the task ID of the parent task.  */
 135   CORE_ADDR parent;
 136
 137   /* If the task is waiting on a task entry, this field contains
 138      the ID of the other task.  Zero otherwise.  */
 139   CORE_ADDR called_task;
 140
 141   /* If the task is accepting a rendezvous with another task, this field
 142      contains the ID of the calling task.  Zero otherwise.  */
 143   CORE_ADDR caller_task;
 144
 145   /* The CPU on which the task is running.  This is dependent on
 146      the runtime actually providing that info, which is not always
 147      the case.  Normally, we should be able to count on it on
 148      bare-metal targets.  */
 149   int base_cpu;
 150 };
 151
 152 /* Assuming V points to an array of S objects,  make sure that it contains at
 153    least M objects, updating V and S as necessary.  */
 154
 155 #define GROW_VECT(v, s, m)                                    \
 156    if ((s) < (m)) (v) = (char *) grow_vect (v, &(s), m, sizeof *(v));
 157
 158 extern void *grow_vect (void *, size_t *, size_t, int);
 159
 160 extern void ada_ensure_varsize_limit (const struct type *type);
 161
 162 extern int ada_get_field_index (const struct type *type,
 163                                 const char *field_name,
 164                                 int maybe_missing);
 165
 166 extern int ada_parse (struct parser_state *);    /* Defined in ada-exp.y */
 167
 168 extern void ada_yyerror (const char *); /* Defined in ada-exp.y */
 169
 170                         /* Defined in ada-typeprint.c */
 171 extern void ada_print_type (struct type *, const char *, struct ui_file *, int,
 172                             int, const struct type_print_options *);
 173
 174 extern void ada_print_typedef (struct type *type, struct symbol *new_symbol,
 175                                struct ui_file *stream);
 176
 177 extern void ada_val_print (struct type *, int, CORE_ADDR,
 178                            struct ui_file *, int,
 179                            struct value *,
 180                            const struct value_print_options *);
 181
 182 extern void ada_value_print (struct value *, struct ui_file *,
 183                              const struct value_print_options *);
 184
 185                                 /* Defined in ada-lang.c */
 186
 187 extern void ada_emit_char (int, struct type *, struct ui_file *, int, int);
 188
 189 extern void ada_printchar (int, struct type *, struct ui_file *);
 190
 191 extern void ada_printstr (struct ui_file *, struct type *, const gdb_byte *,
 192                           unsigned int, const char *, int,
 193                           const struct value_print_options *);
 194
 195 struct value *ada_convert_actual (struct value *actual,
 196                                   struct type *formal_type0);
 197
 198 extern struct value *ada_value_subscript (struct value *, int,
 199                                           struct value **);
 200
 201 extern void ada_fixup_array_indexes_type (struct type *index_desc_type);
 202
 203 extern struct type *ada_array_element_type (struct type *, int);
 204
 205 extern int ada_array_arity (struct type *);
 206
 207 struct type *ada_type_of_array (struct value *, int);
 208
 209 extern struct value *ada_coerce_to_simple_array_ptr (struct value *);
 210
 211 struct value *ada_coerce_to_simple_array (struct value *);
 212
 213 extern int ada_is_simple_array_type (struct type *);
 214
 215 extern int ada_is_array_descriptor_type (struct type *);
 216
 217 extern int ada_is_bogus_array_descriptor (struct type *);
 218
 219 extern LONGEST ada_discrete_type_low_bound (struct type *);
 220
 221 extern LONGEST ada_discrete_type_high_bound (struct type *);
 222
 223 extern struct value *ada_get_decoded_value (struct value *value);
 224
 225 extern struct type *ada_get_decoded_type (struct type *type);
 226
 227 extern const char *ada_decode_symbol (const struct general_symbol_info *);
 228
 229 extern const char *ada_decode (const char*);
 230
 231 extern enum language ada_update_initial_language (enum language);
 232
 233 extern int ada_lookup_symbol_list (const char *, const struct block *,
 234                                    domain_enum, struct block_symbol**);
 235
 236 extern char *ada_fold_name (const char *);
 237
 238 extern struct block_symbol ada_lookup_symbol (const char *,
 239                                               const struct block *,
 240                                               domain_enum, int *);
 241
 242 extern void ada_lookup_encoded_symbol
 243   (const char *name, const struct block *block, domain_enum domain,
 244    struct block_symbol *symbol_info);
 245
 246 extern struct bound_minimal_symbol ada_lookup_simple_minsym (const char *);
 247
 248 extern void ada_fill_in_ada_prototype (struct symbol *);
 249
 250 extern int user_select_syms (struct block_symbol *, int, int);
 251
 252 extern int get_selections (int *, int, int, int, const char *);
 253
 254 extern int ada_scan_number (const char *, int, LONGEST *, int *);
 255
 256 extern struct type *ada_parent_type (struct type *);
 257
 258 extern int ada_is_ignored_field (struct type *, int);
 259
 260 extern int ada_is_constrained_packed_array_type (struct type *);
 261
 262 extern struct value *ada_value_primitive_packed_val (struct value *,
 263                                                      const gdb_byte *,
 264                                                      long, int, int,
 265                                                      struct type *);
 266
 267 extern struct type *ada_coerce_to_simple_array_type (struct type *);
 268
 269 extern int ada_is_character_type (struct type *);
 270
 271 extern int ada_is_string_type (struct type *);
 272
 273 extern int ada_is_tagged_type (struct type *, int);
 274
 275 extern int ada_is_tag_type (struct type *);
 276
 277 extern struct type *ada_tag_type (struct value *);
 278
 279 extern struct value *ada_value_tag (struct value *);
 280
 281 extern const char *ada_tag_name (struct value *);
 282
 283 extern struct value *ada_tag_value_at_base_address (struct value *obj);
 284
 285 extern int ada_is_parent_field (struct type *, int);
 286
 287 extern int ada_is_wrapper_field (struct type *, int);
 288
 289 extern int ada_is_variant_part (struct type *, int);
 290
 291 extern struct type *ada_variant_discrim_type (struct type *, struct type *);
 292
 293 extern int ada_is_others_clause (struct type *, int);
 294
 295 extern int ada_in_variant (LONGEST, struct type *, int);
 296
 297 extern const char *ada_variant_discrim_name (struct type *);
 298
 299 extern struct value *ada_value_struct_elt (struct value *, const char *, int);
 300
 301 extern int ada_is_aligner_type (struct type *);
 302
 303 extern struct type *ada_aligned_type (struct type *);
 304
 305 extern const gdb_byte *ada_aligned_value_addr (struct type *,
 306                                                const gdb_byte *);
 307
 308 extern const char *ada_attribute_name (enum exp_opcode);
 309
 310 extern int ada_is_fixed_point_type (struct type *);
 311
 312 extern int ada_is_system_address_type (struct type *);
 313
 314 extern struct value *ada_delta (struct type *);
 315
 316 extern struct value *ada_scaling_factor (struct type *);
 317
 318 extern struct type *ada_system_address_type (void);
 319
 320 extern int ada_which_variant_applies (struct type *, struct type *,
 321                                       const gdb_byte *);
 322
 323 extern struct type *ada_to_fixed_type (struct type *, const gdb_byte *,
 324                                        CORE_ADDR, struct value *,
 325                                        int check_tag);
 326
 327 extern struct value *ada_to_fixed_value (struct value *val);
 328
 329 extern struct type *ada_template_to_fixed_record_type_1 (struct type *type,
 330                                                          const gdb_byte *valaddr,
 331                                                          CORE_ADDR address,
 332                                                          struct value *dval0,
 333                                                          int keep_dynamic_fields);
 334
 335 extern int ada_name_prefix_len (const char *);
 336
 337 extern const char *ada_type_name (struct type *);
 338
 339 extern struct type *ada_find_parallel_type (struct type *,
 340                                             const char *suffix);
 341
 342 extern bool get_int_var_value (const char *, LONGEST &value);
 343
 344 extern struct symbol *ada_find_renaming_symbol (struct symbol *name_sym,
 345                                                 const struct block *block);
 346
 347 extern int ada_prefer_type (struct type *, struct type *);
 348
 349 extern struct type *ada_get_base_type (struct type *);
 350
 351 extern struct type *ada_check_typedef (struct type *);
 352
 353 extern char *ada_encode (const char *);
 354
 355 extern const char *ada_enum_name (const char *);
 356
 357 extern int ada_is_modular_type (struct type *);
 358
 359 extern ULONGEST ada_modulus (struct type *);
 360
 361 extern struct value *ada_value_ind (struct value *);
 362
 363 extern void ada_print_scalar (struct type *, LONGEST, struct ui_file *);
 364
 365 extern int ada_is_range_type_name (const char *);
 366
 367 extern enum ada_renaming_category ada_parse_renaming (struct symbol *,
 368                                                       const char **,
 369                                                       int *, const char **);
 370
 371 extern void ada_find_printable_frame (struct frame_info *fi);
 372
 373 extern char *ada_breakpoint_rewrite (char *, int *);
 374
 375 extern char *ada_main_name (void);
 376
 377 extern std::string ada_name_for_lookup (const char *name);
 378
 379 extern void create_ada_exception_catchpoint
 380   (struct gdbarch *gdbarch, enum ada_exception_catchpoint_kind ex_kind,
 381    char *excep_string, char *cond_string, int tempflag, int disabled,
 382    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 (ptid_t);
 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 int ada_build_task_list (void);
 413
 414 extern void print_ada_task_info (struct ui_out *uiout,
 415                                  char *taskno_str,
 416                                  struct inferior *inf);
 417
 418 #endif