| 1 | /* Ada language support definitions for GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright (C) 1992, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
| 4 | 2005 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_find_printable_frame (struct frame_info *fi); |
| 474 | |
| 475 | extern void ada_reset_thread_registers (void); |
| 476 | |
| 477 | extern int ada_build_task_list (void); |
| 478 | |
| 479 | /* Look up a symbol by name using the search conventions of |
| 480 | a specific language (optional block, optional symtab). |
| 481 | FIXME: Should be symtab.h. */ |
| 482 | |
| 483 | extern struct symbol *lookup_symbol_in_language (const char *, |
| 484 | const struct block *, |
| 485 | domain_enum, |
| 486 | enum language, |
| 487 | int *, |
| 488 | struct symtab **); |
| 489 | #endif |