gdb/ada-lang.h

   1 /* Ada language support definitions for GDB, the GNU debugger.
   2
   3    Copyright (C) 1992, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   4    2007 Free Software Foundation, Inc.
   5
   6 This file is part of GDB.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.  */
  22
  23 #if !defined (ADA_LANG_H)
  24 #define ADA_LANG_H 1
  25
  26 struct partial_symbol;
  27 struct frame_info;
  28
  29 #include "value.h"
  30 #include "gdbtypes.h"
  31 #include "breakpoint.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(__alpha__) && defined(__osf__)
  38 #define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \
  39    "^[agis]-.*\\.ad[bs]$", \
  40    "/usr/shlib/libpthread\\.so",
  41 #elif defined (__linux__)
  42 #define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \
  43    "^[agis]-.*\\.ad[bs]$", \
  44    "/lib.*/libpthread\\.so[.0-9]*$", "/lib.*/libpthread\\.a$", \
  45    "/lib.*/libc\\.so[.0-9]*$", "/lib.*/libc\\.a$",
  46 #endif
  47
  48 #if !defined (ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS)
  49 #define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \
  50    "^[agis]-.*\\.ad[bs]$",
  51 #endif
  52
  53 /* Names of compiler-generated auxiliary functions probably of no
  54    interest to users. Each name (a basic regular expression string)
  55    is followed by a comma. */
  56 #define ADA_KNOWN_AUXILIARY_FUNCTION_NAME_PATTERNS \
  57    "___clean[.$a-zA-Z0-9_]*$",
  58
  59 /* The maximum number of frame levels searched for non-local,
  60  * non-global symbols.  This limit exists as a precaution to prevent
  61  * infinite search loops when the stack is screwed up. */
  62 #define MAX_ENCLOSING_FRAME_LEVELS 7
  63
  64 /* Maximum number of steps followed in looking for the ultimate
  65    referent of a renaming.  This prevents certain infinite loops that
  66    can otherwise result. */
  67 #define MAX_RENAMING_CHAIN_LENGTH 10
  68
  69 struct block;
  70
  71 /* Corresponding encoded/decoded names and opcodes for Ada user-definable
  72    operators. */
  73 struct ada_opname_map
  74 {
  75   const char *encoded;
  76   const char *decoded;
  77   enum exp_opcode op;
  78 };
  79
  80 /* Table of Ada operators in encoded and decoded forms. */
  81 /* Defined in ada-lang.c */
  82 extern const struct ada_opname_map ada_opname_table[];
  83
  84 enum ada_operator
  85   {
  86     /* X IN A'RANGE(N).  N is an immediate operand, surrounded by
  87        BINOP_IN_BOUNDS before and after.  A is an array, X an index
  88        value.  Evaluates to true iff X is within range of the Nth
  89        dimension (1-based) of A.  (A multi-dimensional array
  90        type is represented as array of array of ...) */
  91     BINOP_IN_BOUNDS = OP_EXTENDED0,
  92
  93     /* X IN L .. U.  True iff L <= X <= U.  */
  94     TERNOP_IN_RANGE,
  95
  96     /* Ada attributes ('Foo). */
  97     OP_ATR_FIRST,
  98     OP_ATR_LAST,
  99     OP_ATR_LENGTH,
 100     OP_ATR_IMAGE,
 101     OP_ATR_MAX,
 102     OP_ATR_MIN,
 103     OP_ATR_MODULUS,
 104     OP_ATR_POS,
 105     OP_ATR_SIZE,
 106     OP_ATR_TAG,
 107     OP_ATR_VAL,
 108
 109     /* Ada type qualification.  It is encoded as for UNOP_CAST, above,
 110        and denotes the TYPE'(EXPR) construct. */
 111     UNOP_QUAL,
 112
 113     /* X IN TYPE.  The `TYPE' argument is immediate, with
 114        UNOP_IN_RANGE before and after it. True iff X is a member of
 115        type TYPE (typically a subrange). */
 116     UNOP_IN_RANGE,
 117
 118     /* An aggregate.   A single immediate operand, N>0, gives
 119        the number of component specifications that follow.  The
 120        immediate operand is followed by a second OP_AGGREGATE.
 121        Next come N component specifications.  A component
 122        specification is either an OP_OTHERS (others=>...), an
 123        OP_CHOICES (for named associations), or other expression (for
 124        positional aggregates only).  Aggregates currently
 125        occur only as the right sides of assignments. */
 126     OP_AGGREGATE,
 127
 128     /* An others clause.  Followed by a single expression. */
 129     OP_OTHERS,
 130
 131     /* An aggregate component association.  A single immediate operand, N,
 132        gives the number of choices that follow.  This is followed by a second
 133        OP_CHOICES operator.  Next come N operands, each of which is an
 134        expression, an OP_DISCRETE_RANGE, or an OP_NAME---the latter
 135        for a simple name that must be a record component name and does
 136        not correspond to a single existing symbol.  After the N choice
 137        indicators comes an expression giving the value.
 138
 139        In an aggregate such as (X => E1, ...), where X is a simple
 140        name, X could syntactically be either a component_selector_name
 141        or an expression used as a discrete_choice, depending on the
 142        aggregate's type context.  Since this is not known at parsing
 143        time, we don't attempt to disambiguate X if it has multiple
 144        definitions, but instead supply an OP_NAME.  If X has a single
 145        definition, we represent it with an OP_VAR_VALUE, even though
 146        it may turn out to be within a record aggregate.  Aggregate
 147        evaluation can use either OP_NAMEs or OP_VAR_VALUEs to get a
 148        record field name, and can evaluate OP_VAR_VALUE normally to
 149        get its value as an expression.  Unfortunately, we lose out in
 150        cases where X has multiple meanings and is part of an array
 151        aggregate.  I hope these are not common enough to annoy users,
 152        who can work around the problem in any case by putting
 153        parentheses around X. */
 154     OP_CHOICES,
 155
 156     /* A positional aggregate component association.  The operator is
 157        followed by a single integer indicating the position in the
 158        aggregate (0-based), followed by a second OP_POSITIONAL.  Next
 159        follows a single expression giving the component value.  */
 160     OP_POSITIONAL,
 161
 162     /* A range of values.  Followed by two expressions giving the
 163        upper and lower bounds of the range. */
 164     OP_DISCRETE_RANGE,
 165
 166     /* End marker */
 167     OP_ADA_LAST
 168   };
 169
 170 /* A triple, (symbol, block, symtab), representing one instance of a
 171  * symbol-lookup operation. */
 172 struct ada_symbol_info {
 173   struct symbol* sym;
 174   struct block* block;
 175   struct symtab* symtab;
 176 };
 177
 178 /* Ada task structures.  */
 179
 180 /* Ada task control block, as defined in the GNAT runt-time library.  */
 181
 182 struct task_control_block
 183 {
 184   char state;
 185   CORE_ADDR parent;
 186   int priority;
 187   char image [32];
 188   int image_len;    /* This field is not always present in the ATCB.  */
 189   CORE_ADDR call;
 190   CORE_ADDR thread;
 191   CORE_ADDR lwp;    /* This field is not always present in the ATCB.  */
 192
 193   /* If the task is waiting on a task entry, this field contains the
 194    task_id of the other task.  */
 195   CORE_ADDR called_task;
 196 };
 197
 198 struct task_ptid
 199 {
 200   int pid;                      /* The Process id */
 201   long lwp;                     /* The Light Weight Process id */
 202   long tid;                     /* The Thread id */
 203 };
 204 typedef struct task_ptid task_ptid_t;
 205
 206 struct task_entry
 207 {
 208   CORE_ADDR task_id;
 209   struct task_control_block atcb;
 210   int task_num;
 211   int known_tasks_index;
 212   struct task_entry *next_task;
 213   task_ptid_t task_ptid;
 214   int stack_per;
 215 };
 216
 217 /* task entry list.  */
 218 extern struct task_entry *task_list;
 219
 220
 221 /* Assuming V points to an array of S objects,  make sure that it contains at
 222    least M objects, updating V and S as necessary. */
 223
 224 #define GROW_VECT(v, s, m)                                              \
 225    if ((s) < (m)) (v) = grow_vect (v, &(s), m, sizeof *(v));
 226
 227 extern void *grow_vect (void *, size_t *, size_t, int);
 228
 229 extern int ada_get_field_index (const struct type *type,
 230                                 const char *field_name,
 231                                 int maybe_missing);
 232
 233 extern int ada_parse (void);    /* Defined in ada-exp.y */
 234
 235 extern void ada_error (char *); /* Defined in ada-exp.y */
 236
 237                         /* Defined in ada-typeprint.c */
 238 extern void ada_print_type (struct type *, char *, struct ui_file *, int,
 239                             int);
 240
 241 extern int ada_val_print (struct type *, const gdb_byte *, int, CORE_ADDR,
 242                           struct ui_file *, int, int, int,
 243                           enum val_prettyprint);
 244
 245 extern int ada_value_print (struct value *, struct ui_file *, int,
 246                             enum val_prettyprint);
 247
 248                                 /* Defined in ada-lang.c */
 249
 250 extern struct value *value_from_contents_and_address (struct type *,
 251                                                       const gdb_byte *,
 252                                                       CORE_ADDR);
 253
 254 extern void ada_emit_char (int, struct ui_file *, int, int);
 255
 256 extern void ada_printchar (int, struct ui_file *);
 257
 258 extern void ada_printstr (struct ui_file *, const gdb_byte *,
 259                           unsigned int, int, int);
 260
 261 extern void ada_convert_actuals (struct value *, int, struct value **,
 262                                  CORE_ADDR *);
 263
 264 extern struct value *ada_value_subscript (struct value *, int,
 265                                           struct value **);
 266
 267 extern struct type *ada_array_element_type (struct type *, int);
 268
 269 extern int ada_array_arity (struct type *);
 270
 271 struct type *ada_type_of_array (struct value *, int);
 272
 273 extern struct value *ada_coerce_to_simple_array_ptr (struct value *);
 274
 275 extern int ada_is_simple_array_type (struct type *);
 276
 277 extern int ada_is_array_descriptor_type (struct type *);
 278
 279 extern int ada_is_bogus_array_descriptor (struct type *);
 280
 281 extern struct type *ada_index_type (struct type *, int);
 282
 283 extern struct value *ada_array_bound (struct value *, int, int);
 284
 285 extern char *ada_decode_symbol (const struct general_symbol_info*);
 286
 287 extern const char *ada_decode (const char*);
 288
 289 extern enum language ada_update_initial_language (enum language,
 290                                                   struct partial_symtab*);
 291
 292 extern void clear_ada_sym_cache (void);
 293
 294 extern char **ada_make_symbol_completion_list (const char *text0,
 295                                                const char *word);
 296
 297 extern int ada_lookup_symbol_list (const char *, const struct block *,
 298                                    domain_enum, struct ada_symbol_info**);
 299
 300 extern char *ada_fold_name (const char *);
 301
 302 extern struct symbol *ada_lookup_symbol (const char *, const struct block *,
 303                                          domain_enum, int *,
 304                                          struct symtab **);
 305
 306 extern struct minimal_symbol *ada_lookup_simple_minsym (const char *);
 307
 308 extern void ada_fill_in_ada_prototype (struct symbol *);
 309
 310 extern int user_select_syms (struct ada_symbol_info *, int, int);
 311
 312 extern int get_selections (int *, int, int, int, char *);
 313
 314 extern char *ada_start_decode_line_1 (char *);
 315
 316 extern struct symtabs_and_lines ada_finish_decode_line_1 (char **,
 317                                                           struct symtab *,
 318                                                           int, char ***);
 319
 320 extern struct symtabs_and_lines ada_sals_for_line (const char*, int,
 321                                                    int, char***, int);
 322
 323 extern int ada_scan_number (const char *, int, LONGEST *, int *);
 324
 325 extern struct type *ada_parent_type (struct type *);
 326
 327 extern int ada_is_ignored_field (struct type *, int);
 328
 329 extern int ada_is_packed_array_type (struct type *);
 330
 331 extern struct value *ada_value_primitive_packed_val (struct value *,
 332                                                      const gdb_byte *,
 333                                                      long, int, int,
 334                                                      struct type *);
 335
 336 extern struct type *ada_coerce_to_simple_array_type (struct type *);
 337
 338 extern int ada_is_character_type (struct type *);
 339
 340 extern int ada_is_string_type (struct type *);
 341
 342 extern int ada_is_tagged_type (struct type *, int);
 343
 344 extern int ada_is_tag_type (struct type *);
 345
 346 extern struct type *ada_tag_type (struct value *);
 347
 348 extern struct value *ada_value_tag (struct value *);
 349
 350 extern const char *ada_tag_name (struct value *);
 351
 352 extern int ada_is_parent_field (struct type *, int);
 353
 354 extern int ada_is_wrapper_field (struct type *, int);
 355
 356 extern int ada_is_variant_part (struct type *, int);
 357
 358 extern struct type *ada_variant_discrim_type (struct type *, struct type *);
 359
 360 extern int ada_is_others_clause (struct type *, int);
 361
 362 extern int ada_in_variant (LONGEST, struct type *, int);
 363
 364 extern char *ada_variant_discrim_name (struct type *);
 365
 366 extern struct value *ada_value_struct_elt (struct value *, char *, int);
 367
 368 extern int ada_is_aligner_type (struct type *);
 369
 370 extern struct type *ada_aligned_type (struct type *);
 371
 372 extern const gdb_byte *ada_aligned_value_addr (struct type *,
 373                                                const gdb_byte *);
 374
 375 extern const char *ada_attribute_name (enum exp_opcode);
 376
 377 extern int ada_is_fixed_point_type (struct type *);
 378
 379 extern int ada_is_system_address_type (struct type *);
 380
 381 extern DOUBLEST ada_delta (struct type *);
 382
 383 extern DOUBLEST ada_fixed_to_float (struct type *, LONGEST);
 384
 385 extern LONGEST ada_float_to_fixed (struct type *, DOUBLEST);
 386
 387 extern int ada_is_vax_floating_type (struct type *);
 388
 389 extern int ada_vax_float_type_suffix (struct type *);
 390
 391 extern struct value *ada_vax_float_print_function (struct type *);
 392
 393 extern struct type *ada_system_address_type (void);
 394
 395 extern int ada_which_variant_applies (struct type *, struct type *,
 396                                       const gdb_byte *);
 397
 398 extern struct type *ada_to_fixed_type (struct type *, const gdb_byte *,
 399                                        CORE_ADDR, struct value *);
 400
 401 extern struct type *ada_template_to_fixed_record_type_1 (struct type *type,
 402                                                          const gdb_byte *valaddr,
 403                                                          CORE_ADDR address,
 404                                                          struct value *dval0,
 405                                                          int keep_dynamic_fields);
 406
 407 extern int ada_name_prefix_len (const char *);
 408
 409 extern char *ada_type_name (struct type *);
 410
 411 extern struct type *ada_find_parallel_type (struct type *,
 412                                             const char *suffix);
 413
 414 extern LONGEST get_int_var_value (char *, int *);
 415
 416 extern struct symbol *ada_find_any_symbol (const char *name);
 417
 418 extern struct type *ada_find_any_type (const char *name);
 419
 420 extern struct symbol *ada_find_renaming_symbol (const char *name,
 421                                                 struct block *block);
 422
 423 extern int ada_prefer_type (struct type *, struct type *);
 424
 425 extern struct type *ada_get_base_type (struct type *);
 426
 427 extern struct type *ada_check_typedef (struct type *);
 428
 429 extern char *ada_encode (const char *);
 430
 431 extern const char *ada_enum_name (const char *);
 432
 433 extern int ada_is_modular_type (struct type *);
 434
 435 extern ULONGEST ada_modulus (struct type *);
 436
 437 extern struct value *ada_value_ind (struct value *);
 438
 439 extern void ada_print_scalar (struct type *, LONGEST, struct ui_file *);
 440
 441 extern int ada_is_range_type_name (const char *);
 442
 443 extern const char *ada_renaming_type (struct type *);
 444
 445 extern int ada_is_object_renaming (struct symbol *);
 446
 447 extern char *ada_simple_renamed_entity (struct symbol *);
 448
 449 extern char *ada_breakpoint_rewrite (char *, int *);
 450
 451 extern char *ada_main_name (void);
 452
 453 /* Tasking-related: ada-tasks.c */
 454
 455 extern int valid_task_id (int);
 456
 457 extern void init_task_list (void);
 458
 459 extern int ada_is_exception_breakpoint (bpstat bs);
 460
 461 extern void ada_adjust_exception_stop (bpstat bs);
 462
 463 extern void ada_print_exception_stop (bpstat bs);
 464
 465 extern int ada_get_current_task (ptid_t);
 466
 467 extern int breakpoint_ada_task_match (CORE_ADDR, ptid_t);
 468
 469 extern int ada_print_exception_breakpoint_nontask (struct breakpoint *);
 470
 471 extern void ada_print_exception_breakpoint_task (struct breakpoint *);
 472
 473 extern void ada_reset_thread_registers (void);
 474
 475 extern int ada_build_task_list (void);
 476
 477 /* Look up a symbol by name using the search conventions of
 478    a specific language (optional block, optional symtab).
 479    FIXME: Should be symtab.h. */
 480
 481 extern struct symbol *lookup_symbol_in_language (const char *,
 482                                                  const struct block *,
 483                                                  domain_enum,
 484                                                  enum language,
 485                                                  int *,
 486                                                  struct symtab **);
 487
 488 extern int ada_exception_catchpoint_p (struct breakpoint *b);
 489
 490 extern struct symtab_and_line
 491   ada_decode_exception_location (char *args, char **addr_string,
 492                                  char **exp_string, char **cond_string,
 493                                  struct expression **cond,
 494                                  struct breakpoint_ops **ops);
 495
 496 extern struct symtab_and_line
 497   ada_decode_assert_location (char *args, char **addr_string,
 498                               struct breakpoint_ops **ops);
 499
 500
 501 #endif