| 1 | /* Support routines for manipulating internal types for GDB. |
| 2 | Copyright (C) 1992 Free Software Foundation, Inc. |
| 3 | Contributed by Cygnus Support, using pieces from other GDB modules. |
| 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 2 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, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include <string.h> |
| 23 | #include "bfd.h" |
| 24 | #include "symtab.h" |
| 25 | #include "symfile.h" |
| 26 | #include "objfiles.h" |
| 27 | #include "gdbtypes.h" |
| 28 | #include "expression.h" |
| 29 | #include "language.h" |
| 30 | #include "target.h" |
| 31 | #include "value.h" |
| 32 | #include "demangle.h" |
| 33 | |
| 34 | /* Alloc a new type structure and fill it with some defaults. If |
| 35 | OBJFILE is non-NULL, then allocate the space for the type structure |
| 36 | in that objfile's type_obstack. */ |
| 37 | |
| 38 | struct type * |
| 39 | alloc_type (objfile) |
| 40 | struct objfile *objfile; |
| 41 | { |
| 42 | register struct type *type; |
| 43 | |
| 44 | /* Alloc the structure and start off with all fields zeroed. */ |
| 45 | |
| 46 | if (objfile == NULL) |
| 47 | { |
| 48 | type = (struct type *) xmalloc (sizeof (struct type)); |
| 49 | } |
| 50 | else |
| 51 | { |
| 52 | type = (struct type *) obstack_alloc (&objfile -> type_obstack, |
| 53 | sizeof (struct type)); |
| 54 | } |
| 55 | memset ((char *) type, 0, sizeof (struct type)); |
| 56 | |
| 57 | /* Initialize the fields that might not be zero. */ |
| 58 | |
| 59 | TYPE_CODE (type) = TYPE_CODE_UNDEF; |
| 60 | TYPE_OBJFILE (type) = objfile; |
| 61 | TYPE_VPTR_FIELDNO (type) = -1; |
| 62 | |
| 63 | return (type); |
| 64 | } |
| 65 | |
| 66 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
| 67 | to a pointer to memory where the pointer type should be stored. |
| 68 | If *TYPEPTR is zero, update it to point to the pointer type we return. |
| 69 | We allocate new memory if needed. */ |
| 70 | |
| 71 | struct type * |
| 72 | make_pointer_type (type, typeptr) |
| 73 | struct type *type; |
| 74 | struct type **typeptr; |
| 75 | { |
| 76 | register struct type *ntype; /* New type */ |
| 77 | struct objfile *objfile; |
| 78 | |
| 79 | ntype = TYPE_POINTER_TYPE (type); |
| 80 | |
| 81 | if (ntype) |
| 82 | if (typeptr == 0) |
| 83 | return ntype; /* Don't care about alloc, and have new type. */ |
| 84 | else if (*typeptr == 0) |
| 85 | { |
| 86 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
| 87 | return ntype; |
| 88 | } |
| 89 | |
| 90 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| 91 | { |
| 92 | ntype = alloc_type (TYPE_OBJFILE (type)); |
| 93 | if (typeptr) |
| 94 | *typeptr = ntype; |
| 95 | } |
| 96 | else /* We have storage, but need to reset it. */ |
| 97 | { |
| 98 | ntype = *typeptr; |
| 99 | objfile = TYPE_OBJFILE (ntype); |
| 100 | memset ((char *) ntype, 0, sizeof (struct type)); |
| 101 | TYPE_OBJFILE (ntype) = objfile; |
| 102 | } |
| 103 | |
| 104 | TYPE_TARGET_TYPE (ntype) = type; |
| 105 | TYPE_POINTER_TYPE (type) = ntype; |
| 106 | |
| 107 | /* FIXME! Assume the machine has only one representation for pointers! */ |
| 108 | |
| 109 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; |
| 110 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
| 111 | |
| 112 | /* pointers are unsigned */ |
| 113 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; |
| 114 | |
| 115 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
| 116 | TYPE_POINTER_TYPE (type) = ntype; |
| 117 | |
| 118 | return ntype; |
| 119 | } |
| 120 | |
| 121 | /* Given a type TYPE, return a type of pointers to that type. |
| 122 | May need to construct such a type if this is the first use. */ |
| 123 | |
| 124 | struct type * |
| 125 | lookup_pointer_type (type) |
| 126 | struct type *type; |
| 127 | { |
| 128 | return make_pointer_type (type, (struct type **)0); |
| 129 | } |
| 130 | |
| 131 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points |
| 132 | to a pointer to memory where the reference type should be stored. |
| 133 | If *TYPEPTR is zero, update it to point to the reference type we return. |
| 134 | We allocate new memory if needed. */ |
| 135 | |
| 136 | struct type * |
| 137 | make_reference_type (type, typeptr) |
| 138 | struct type *type; |
| 139 | struct type **typeptr; |
| 140 | { |
| 141 | register struct type *ntype; /* New type */ |
| 142 | struct objfile *objfile; |
| 143 | |
| 144 | ntype = TYPE_REFERENCE_TYPE (type); |
| 145 | |
| 146 | if (ntype) |
| 147 | if (typeptr == 0) |
| 148 | return ntype; /* Don't care about alloc, and have new type. */ |
| 149 | else if (*typeptr == 0) |
| 150 | { |
| 151 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
| 152 | return ntype; |
| 153 | } |
| 154 | |
| 155 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| 156 | { |
| 157 | ntype = alloc_type (TYPE_OBJFILE (type)); |
| 158 | if (typeptr) |
| 159 | *typeptr = ntype; |
| 160 | } |
| 161 | else /* We have storage, but need to reset it. */ |
| 162 | { |
| 163 | ntype = *typeptr; |
| 164 | objfile = TYPE_OBJFILE (ntype); |
| 165 | memset ((char *) ntype, 0, sizeof (struct type)); |
| 166 | TYPE_OBJFILE (ntype) = objfile; |
| 167 | } |
| 168 | |
| 169 | TYPE_TARGET_TYPE (ntype) = type; |
| 170 | TYPE_REFERENCE_TYPE (type) = ntype; |
| 171 | |
| 172 | /* FIXME! Assume the machine has only one representation for references, |
| 173 | and that it matches the (only) representation for pointers! */ |
| 174 | |
| 175 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; |
| 176 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
| 177 | |
| 178 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
| 179 | TYPE_REFERENCE_TYPE (type) = ntype; |
| 180 | |
| 181 | return ntype; |
| 182 | } |
| 183 | |
| 184 | /* Same as above, but caller doesn't care about memory allocation details. */ |
| 185 | |
| 186 | struct type * |
| 187 | lookup_reference_type (type) |
| 188 | struct type *type; |
| 189 | { |
| 190 | return make_reference_type (type, (struct type **)0); |
| 191 | } |
| 192 | |
| 193 | /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points |
| 194 | to a pointer to memory where the function type should be stored. |
| 195 | If *TYPEPTR is zero, update it to point to the function type we return. |
| 196 | We allocate new memory if needed. */ |
| 197 | |
| 198 | struct type * |
| 199 | make_function_type (type, typeptr) |
| 200 | struct type *type; |
| 201 | struct type **typeptr; |
| 202 | { |
| 203 | register struct type *ntype; /* New type */ |
| 204 | struct objfile *objfile; |
| 205 | |
| 206 | ntype = TYPE_FUNCTION_TYPE (type); |
| 207 | |
| 208 | if (ntype) |
| 209 | if (typeptr == 0) |
| 210 | return ntype; /* Don't care about alloc, and have new type. */ |
| 211 | else if (*typeptr == 0) |
| 212 | { |
| 213 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
| 214 | return ntype; |
| 215 | } |
| 216 | |
| 217 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| 218 | { |
| 219 | ntype = alloc_type (TYPE_OBJFILE (type)); |
| 220 | if (typeptr) |
| 221 | *typeptr = ntype; |
| 222 | } |
| 223 | else /* We have storage, but need to reset it. */ |
| 224 | { |
| 225 | ntype = *typeptr; |
| 226 | objfile = TYPE_OBJFILE (ntype); |
| 227 | memset ((char *) ntype, 0, sizeof (struct type)); |
| 228 | TYPE_OBJFILE (ntype) = objfile; |
| 229 | } |
| 230 | |
| 231 | TYPE_TARGET_TYPE (ntype) = type; |
| 232 | TYPE_FUNCTION_TYPE (type) = ntype; |
| 233 | |
| 234 | TYPE_LENGTH (ntype) = 1; |
| 235 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; |
| 236 | |
| 237 | if (!TYPE_FUNCTION_TYPE (type)) /* Remember it, if don't have one. */ |
| 238 | TYPE_FUNCTION_TYPE (type) = ntype; |
| 239 | |
| 240 | return ntype; |
| 241 | } |
| 242 | |
| 243 | |
| 244 | /* Given a type TYPE, return a type of functions that return that type. |
| 245 | May need to construct such a type if this is the first use. */ |
| 246 | |
| 247 | struct type * |
| 248 | lookup_function_type (type) |
| 249 | struct type *type; |
| 250 | { |
| 251 | return make_function_type (type, (struct type **)0); |
| 252 | } |
| 253 | |
| 254 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
| 255 | May need to construct such a type if this is the first use. |
| 256 | The TYPE is the type of the member. The DOMAIN is the type |
| 257 | of the aggregate that the member belongs to. */ |
| 258 | |
| 259 | struct type * |
| 260 | lookup_member_type (type, domain) |
| 261 | struct type *type; |
| 262 | struct type *domain; |
| 263 | { |
| 264 | register struct type *mtype; |
| 265 | |
| 266 | mtype = alloc_type (TYPE_OBJFILE (type)); |
| 267 | smash_to_member_type (mtype, domain, type); |
| 268 | return (mtype); |
| 269 | } |
| 270 | |
| 271 | /* Allocate a stub method whose return type is TYPE. |
| 272 | This apparently happens for speed of symbol reading, since parsing |
| 273 | out the arguments to the method is cpu-intensive, the way we are doing |
| 274 | it. So, we will fill in arguments later. |
| 275 | This always returns a fresh type. */ |
| 276 | |
| 277 | struct type * |
| 278 | allocate_stub_method (type) |
| 279 | struct type *type; |
| 280 | { |
| 281 | struct type *mtype; |
| 282 | |
| 283 | mtype = alloc_type (TYPE_OBJFILE (type)); |
| 284 | TYPE_TARGET_TYPE (mtype) = type; |
| 285 | /* _DOMAIN_TYPE (mtype) = unknown yet */ |
| 286 | /* _ARG_TYPES (mtype) = unknown yet */ |
| 287 | TYPE_FLAGS (mtype) = TYPE_FLAG_STUB; |
| 288 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; |
| 289 | TYPE_LENGTH (mtype) = 1; |
| 290 | return (mtype); |
| 291 | } |
| 292 | |
| 293 | /* Create an array type. Elements will be of type TYPE, and there will |
| 294 | be NUM of them. |
| 295 | |
| 296 | Eventually this should be extended to take two more arguments which |
| 297 | specify the bounds of the array and the type of the index. |
| 298 | It should also be changed to be a "lookup" function, with the |
| 299 | appropriate data structures added to the type field. |
| 300 | Then read array type should call here. */ |
| 301 | |
| 302 | struct type * |
| 303 | create_array_type (element_type, number) |
| 304 | struct type *element_type; |
| 305 | int number; |
| 306 | { |
| 307 | struct type *result_type; |
| 308 | struct type *range_type; |
| 309 | |
| 310 | result_type = alloc_type (TYPE_OBJFILE (element_type)); |
| 311 | |
| 312 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
| 313 | TYPE_TARGET_TYPE (result_type) = element_type; |
| 314 | TYPE_LENGTH (result_type) = number * TYPE_LENGTH (element_type); |
| 315 | TYPE_NFIELDS (result_type) = 1; |
| 316 | TYPE_FIELDS (result_type) = (struct field *) |
| 317 | TYPE_ALLOC (result_type, sizeof (struct field)); |
| 318 | |
| 319 | { |
| 320 | /* Create range type. */ |
| 321 | range_type = alloc_type (TYPE_OBJFILE (result_type)); |
| 322 | TYPE_CODE (range_type) = TYPE_CODE_RANGE; |
| 323 | TYPE_TARGET_TYPE (range_type) = builtin_type_int; /* FIXME */ |
| 324 | |
| 325 | /* This should never be needed. */ |
| 326 | TYPE_LENGTH (range_type) = sizeof (int); |
| 327 | |
| 328 | TYPE_NFIELDS (range_type) = 2; |
| 329 | TYPE_FIELDS (range_type) = (struct field *) |
| 330 | TYPE_ALLOC (range_type, 2 * sizeof (struct field)); |
| 331 | TYPE_FIELD_BITPOS (range_type, 0) = 0; /* FIXME */ |
| 332 | TYPE_FIELD_BITPOS (range_type, 1) = number-1; /* FIXME */ |
| 333 | TYPE_FIELD_TYPE (range_type, 0) = builtin_type_int; /* FIXME */ |
| 334 | TYPE_FIELD_TYPE (range_type, 1) = builtin_type_int; /* FIXME */ |
| 335 | } |
| 336 | TYPE_FIELD_TYPE (result_type, 0) = range_type; |
| 337 | TYPE_VPTR_FIELDNO (result_type) = -1; |
| 338 | |
| 339 | return (result_type); |
| 340 | } |
| 341 | |
| 342 | |
| 343 | /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. |
| 344 | A MEMBER is a wierd thing -- it amounts to a typed offset into |
| 345 | a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't |
| 346 | include the offset (that's the value of the MEMBER itself), but does |
| 347 | include the structure type into which it points (for some reason). |
| 348 | |
| 349 | When "smashing" the type, we preserve the objfile that the |
| 350 | old type pointed to, since we aren't changing where the type is actually |
| 351 | allocated. */ |
| 352 | |
| 353 | void |
| 354 | smash_to_member_type (type, domain, to_type) |
| 355 | struct type *type; |
| 356 | struct type *domain; |
| 357 | struct type *to_type; |
| 358 | { |
| 359 | struct objfile *objfile; |
| 360 | |
| 361 | objfile = TYPE_OBJFILE (type); |
| 362 | |
| 363 | memset ((char *) type, 0, sizeof (struct type)); |
| 364 | TYPE_OBJFILE (type) = objfile; |
| 365 | TYPE_TARGET_TYPE (type) = to_type; |
| 366 | TYPE_DOMAIN_TYPE (type) = domain; |
| 367 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
| 368 | TYPE_CODE (type) = TYPE_CODE_MEMBER; |
| 369 | } |
| 370 | |
| 371 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
| 372 | METHOD just means `function that gets an extra "this" argument'. |
| 373 | |
| 374 | When "smashing" the type, we preserve the objfile that the |
| 375 | old type pointed to, since we aren't changing where the type is actually |
| 376 | allocated. */ |
| 377 | |
| 378 | void |
| 379 | smash_to_method_type (type, domain, to_type, args) |
| 380 | struct type *type; |
| 381 | struct type *domain; |
| 382 | struct type *to_type; |
| 383 | struct type **args; |
| 384 | { |
| 385 | struct objfile *objfile; |
| 386 | |
| 387 | objfile = TYPE_OBJFILE (type); |
| 388 | |
| 389 | memset ((char *) type, 0, sizeof (struct type)); |
| 390 | TYPE_OBJFILE (type) = objfile; |
| 391 | TYPE_TARGET_TYPE (type) = to_type; |
| 392 | TYPE_DOMAIN_TYPE (type) = domain; |
| 393 | TYPE_ARG_TYPES (type) = args; |
| 394 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
| 395 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
| 396 | } |
| 397 | |
| 398 | /* Return a typename for a struct/union/enum type |
| 399 | without the tag qualifier. If the type has a NULL name, |
| 400 | NULL is returned. */ |
| 401 | |
| 402 | char * |
| 403 | type_name_no_tag (type) |
| 404 | register const struct type *type; |
| 405 | { |
| 406 | register char *name; |
| 407 | |
| 408 | if ((name = TYPE_NAME (type)) != NULL) |
| 409 | { |
| 410 | switch (TYPE_CODE (type)) |
| 411 | { |
| 412 | case TYPE_CODE_STRUCT: |
| 413 | if(!strncmp (name, "struct ", 7)) |
| 414 | { |
| 415 | name += 7; |
| 416 | } |
| 417 | break; |
| 418 | case TYPE_CODE_UNION: |
| 419 | if(!strncmp (name, "union ", 6)) |
| 420 | { |
| 421 | name += 6; |
| 422 | } |
| 423 | break; |
| 424 | case TYPE_CODE_ENUM: |
| 425 | if(!strncmp (name, "enum ", 5)) |
| 426 | { |
| 427 | name += 5; |
| 428 | } |
| 429 | break; |
| 430 | default: /* To avoid -Wall warnings */ |
| 431 | break; |
| 432 | } |
| 433 | } |
| 434 | return (name); |
| 435 | } |
| 436 | |
| 437 | /* Lookup a primitive type named NAME. |
| 438 | Return zero if NAME is not a primitive type.*/ |
| 439 | |
| 440 | struct type * |
| 441 | lookup_primitive_typename (name) |
| 442 | char *name; |
| 443 | { |
| 444 | struct type ** const *p; |
| 445 | |
| 446 | for (p = current_language -> la_builtin_type_vector; *p != NULL; p++) |
| 447 | { |
| 448 | if (!strcmp ((**p) -> name, name)) |
| 449 | { |
| 450 | return (**p); |
| 451 | } |
| 452 | } |
| 453 | return (NULL); |
| 454 | } |
| 455 | |
| 456 | /* Lookup a typedef or primitive type named NAME, |
| 457 | visible in lexical block BLOCK. |
| 458 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ |
| 459 | |
| 460 | struct type * |
| 461 | lookup_typename (name, block, noerr) |
| 462 | char *name; |
| 463 | struct block *block; |
| 464 | int noerr; |
| 465 | { |
| 466 | register struct symbol *sym; |
| 467 | register struct type *tmp; |
| 468 | |
| 469 | sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); |
| 470 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
| 471 | { |
| 472 | tmp = lookup_primitive_typename (name); |
| 473 | if (tmp) |
| 474 | { |
| 475 | return (tmp); |
| 476 | } |
| 477 | else if (!tmp && noerr) |
| 478 | { |
| 479 | return (NULL); |
| 480 | } |
| 481 | else |
| 482 | { |
| 483 | error ("No type named %s.", name); |
| 484 | } |
| 485 | } |
| 486 | return (SYMBOL_TYPE (sym)); |
| 487 | } |
| 488 | |
| 489 | struct type * |
| 490 | lookup_unsigned_typename (name) |
| 491 | char *name; |
| 492 | { |
| 493 | char *uns = alloca (strlen (name) + 10); |
| 494 | |
| 495 | strcpy (uns, "unsigned "); |
| 496 | strcpy (uns + 9, name); |
| 497 | return (lookup_typename (uns, (struct block *) NULL, 0)); |
| 498 | } |
| 499 | |
| 500 | struct type * |
| 501 | lookup_signed_typename (name) |
| 502 | char *name; |
| 503 | { |
| 504 | struct type *t; |
| 505 | char *uns = alloca (strlen (name) + 8); |
| 506 | |
| 507 | strcpy (uns, "signed "); |
| 508 | strcpy (uns + 7, name); |
| 509 | t = lookup_typename (uns, (struct block *) NULL, 1); |
| 510 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
| 511 | if (t != NULL) |
| 512 | return t; |
| 513 | return lookup_typename (name, (struct block *) NULL, 0); |
| 514 | } |
| 515 | |
| 516 | /* Lookup a structure type named "struct NAME", |
| 517 | visible in lexical block BLOCK. */ |
| 518 | |
| 519 | struct type * |
| 520 | lookup_struct (name, block) |
| 521 | char *name; |
| 522 | struct block *block; |
| 523 | { |
| 524 | register struct symbol *sym; |
| 525 | |
| 526 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
| 527 | (struct symtab **) NULL); |
| 528 | |
| 529 | if (sym == NULL) |
| 530 | { |
| 531 | error ("No struct type named %s.", name); |
| 532 | } |
| 533 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) |
| 534 | { |
| 535 | error ("This context has class, union or enum %s, not a struct.", name); |
| 536 | } |
| 537 | return (SYMBOL_TYPE (sym)); |
| 538 | } |
| 539 | |
| 540 | /* Lookup a union type named "union NAME", |
| 541 | visible in lexical block BLOCK. */ |
| 542 | |
| 543 | struct type * |
| 544 | lookup_union (name, block) |
| 545 | char *name; |
| 546 | struct block *block; |
| 547 | { |
| 548 | register struct symbol *sym; |
| 549 | |
| 550 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
| 551 | (struct symtab **) NULL); |
| 552 | |
| 553 | if (sym == NULL) |
| 554 | { |
| 555 | error ("No union type named %s.", name); |
| 556 | } |
| 557 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_UNION) |
| 558 | { |
| 559 | error ("This context has class, struct or enum %s, not a union.", name); |
| 560 | } |
| 561 | return (SYMBOL_TYPE (sym)); |
| 562 | } |
| 563 | |
| 564 | /* Lookup an enum type named "enum NAME", |
| 565 | visible in lexical block BLOCK. */ |
| 566 | |
| 567 | struct type * |
| 568 | lookup_enum (name, block) |
| 569 | char *name; |
| 570 | struct block *block; |
| 571 | { |
| 572 | register struct symbol *sym; |
| 573 | |
| 574 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
| 575 | (struct symtab **) NULL); |
| 576 | if (sym == NULL) |
| 577 | { |
| 578 | error ("No enum type named %s.", name); |
| 579 | } |
| 580 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) |
| 581 | { |
| 582 | error ("This context has class, struct or union %s, not an enum.", name); |
| 583 | } |
| 584 | return (SYMBOL_TYPE (sym)); |
| 585 | } |
| 586 | |
| 587 | /* Lookup a template type named "template NAME<TYPE>", |
| 588 | visible in lexical block BLOCK. */ |
| 589 | |
| 590 | struct type * |
| 591 | lookup_template_type (name, type, block) |
| 592 | char *name; |
| 593 | struct type *type; |
| 594 | struct block *block; |
| 595 | { |
| 596 | struct symbol *sym; |
| 597 | char *nam = (char*) alloca(strlen(name) + strlen(type->name) + 4); |
| 598 | strcpy (nam, name); |
| 599 | strcat (nam, "<"); |
| 600 | strcat (nam, type->name); |
| 601 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
| 602 | |
| 603 | sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **)NULL); |
| 604 | |
| 605 | if (sym == NULL) |
| 606 | { |
| 607 | error ("No template type named %s.", name); |
| 608 | } |
| 609 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) |
| 610 | { |
| 611 | error ("This context has class, union or enum %s, not a struct.", name); |
| 612 | } |
| 613 | return (SYMBOL_TYPE (sym)); |
| 614 | } |
| 615 | |
| 616 | /* Given a type TYPE, lookup the type of the component of type named |
| 617 | NAME. |
| 618 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ |
| 619 | |
| 620 | struct type * |
| 621 | lookup_struct_elt_type (type, name, noerr) |
| 622 | struct type *type; |
| 623 | char *name; |
| 624 | int noerr; |
| 625 | { |
| 626 | int i; |
| 627 | |
| 628 | if (TYPE_CODE (type) == TYPE_CODE_PTR || |
| 629 | TYPE_CODE (type) == TYPE_CODE_REF) |
| 630 | type = TYPE_TARGET_TYPE (type); |
| 631 | |
| 632 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT && |
| 633 | TYPE_CODE (type) != TYPE_CODE_UNION) |
| 634 | { |
| 635 | target_terminal_ours (); |
| 636 | fflush (stdout); |
| 637 | fprintf (stderr, "Type "); |
| 638 | type_print (type, "", stderr, -1); |
| 639 | error (" is not a structure or union type."); |
| 640 | } |
| 641 | |
| 642 | check_stub_type (type); |
| 643 | |
| 644 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) |
| 645 | { |
| 646 | char *t_field_name = TYPE_FIELD_NAME (type, i); |
| 647 | |
| 648 | if (t_field_name && !strcmp (t_field_name, name)) |
| 649 | { |
| 650 | return TYPE_FIELD_TYPE (type, i); |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | /* OK, it's not in this class. Recursively check the baseclasses. */ |
| 655 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) |
| 656 | { |
| 657 | struct type *t; |
| 658 | |
| 659 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 0); |
| 660 | if (t != NULL) |
| 661 | { |
| 662 | return t; |
| 663 | } |
| 664 | } |
| 665 | |
| 666 | if (noerr) |
| 667 | { |
| 668 | return NULL; |
| 669 | } |
| 670 | |
| 671 | target_terminal_ours (); |
| 672 | fflush (stdout); |
| 673 | fprintf (stderr, "Type "); |
| 674 | type_print (type, "", stderr, -1); |
| 675 | fprintf (stderr, " has no component named "); |
| 676 | fputs_filtered (name, stderr); |
| 677 | error ("."); |
| 678 | return (struct type *)-1; /* For lint */ |
| 679 | } |
| 680 | |
| 681 | /* This function is really horrible, but to avoid it, there would need |
| 682 | to be more filling in of forward references. */ |
| 683 | |
| 684 | void |
| 685 | fill_in_vptr_fieldno (type) |
| 686 | struct type *type; |
| 687 | { |
| 688 | if (TYPE_VPTR_FIELDNO (type) < 0) |
| 689 | { |
| 690 | int i; |
| 691 | for (i = 1; i < TYPE_N_BASECLASSES (type); i++) |
| 692 | { |
| 693 | fill_in_vptr_fieldno (TYPE_BASECLASS (type, i)); |
| 694 | if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0) |
| 695 | { |
| 696 | TYPE_VPTR_FIELDNO (type) |
| 697 | = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)); |
| 698 | TYPE_VPTR_BASETYPE (type) |
| 699 | = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i)); |
| 700 | break; |
| 701 | } |
| 702 | } |
| 703 | } |
| 704 | } |
| 705 | |
| 706 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
| 707 | |
| 708 | If this is a stubbed struct (i.e. declared as struct foo *), see if |
| 709 | we can find a full definition in some other file. If so, copy this |
| 710 | definition, so we can use it in future. If not, set a flag so we |
| 711 | don't waste too much time in future. (FIXME, this doesn't seem |
| 712 | to be happening...) |
| 713 | |
| 714 | This used to be coded as a macro, but I don't think it is called |
| 715 | often enough to merit such treatment. |
| 716 | */ |
| 717 | |
| 718 | struct complaint stub_noname_complaint = |
| 719 | {"stub type has NULL name", 0, 0}; |
| 720 | |
| 721 | void |
| 722 | check_stub_type (type) |
| 723 | struct type *type; |
| 724 | { |
| 725 | if (TYPE_FLAGS(type) & TYPE_FLAG_STUB) |
| 726 | { |
| 727 | char* name = type_name_no_tag (type); |
| 728 | struct symbol *sym; |
| 729 | if (name == NULL) |
| 730 | { |
| 731 | complain (&stub_noname_complaint, 0); |
| 732 | return; |
| 733 | } |
| 734 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, |
| 735 | (struct symtab **) NULL); |
| 736 | if (sym) |
| 737 | { |
| 738 | memcpy ((char *)type, (char *)SYMBOL_TYPE(sym), sizeof (struct type)); |
| 739 | } |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | /* Ugly hack to convert method stubs into method types. |
| 744 | |
| 745 | He ain't kiddin'. This demangles the name of the method into a string |
| 746 | including argument types, parses out each argument type, generates |
| 747 | a string casting a zero to that type, evaluates the string, and stuffs |
| 748 | the resulting type into an argtype vector!!! Then it knows the type |
| 749 | of the whole function (including argument types for overloading), |
| 750 | which info used to be in the stab's but was removed to hack back |
| 751 | the space required for them. */ |
| 752 | |
| 753 | void |
| 754 | check_stub_method (type, i, j) |
| 755 | struct type *type; |
| 756 | int i; |
| 757 | int j; |
| 758 | { |
| 759 | struct fn_field *f; |
| 760 | char *mangled_name = gdb_mangle_name (type, i, j); |
| 761 | char *demangled_name = cplus_demangle (mangled_name, |
| 762 | DMGL_PARAMS | DMGL_ANSI); |
| 763 | char *argtypetext, *p; |
| 764 | int depth = 0, argcount = 1; |
| 765 | struct type **argtypes; |
| 766 | struct type *mtype; |
| 767 | |
| 768 | if (demangled_name == NULL) |
| 769 | { |
| 770 | error ("Internal: Cannot demangle mangled name `%s'.", mangled_name); |
| 771 | } |
| 772 | |
| 773 | /* Now, read in the parameters that define this type. */ |
| 774 | argtypetext = strchr (demangled_name, '(') + 1; |
| 775 | p = argtypetext; |
| 776 | while (*p) |
| 777 | { |
| 778 | if (*p == '(') |
| 779 | { |
| 780 | depth += 1; |
| 781 | } |
| 782 | else if (*p == ')') |
| 783 | { |
| 784 | depth -= 1; |
| 785 | } |
| 786 | else if (*p == ',' && depth == 0) |
| 787 | { |
| 788 | argcount += 1; |
| 789 | } |
| 790 | |
| 791 | p += 1; |
| 792 | } |
| 793 | |
| 794 | /* We need two more slots: one for the THIS pointer, and one for the |
| 795 | NULL [...] or void [end of arglist]. */ |
| 796 | |
| 797 | argtypes = (struct type **) |
| 798 | TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *)); |
| 799 | p = argtypetext; |
| 800 | argtypes[0] = lookup_pointer_type (type); |
| 801 | argcount = 1; |
| 802 | |
| 803 | if (*p != ')') /* () means no args, skip while */ |
| 804 | { |
| 805 | depth = 0; |
| 806 | while (*p) |
| 807 | { |
| 808 | if (depth <= 0 && (*p == ',' || *p == ')')) |
| 809 | { |
| 810 | argtypes[argcount] = |
| 811 | parse_and_eval_type (argtypetext, p - argtypetext); |
| 812 | argcount += 1; |
| 813 | argtypetext = p + 1; |
| 814 | } |
| 815 | |
| 816 | if (*p == '(') |
| 817 | { |
| 818 | depth += 1; |
| 819 | } |
| 820 | else if (*p == ')') |
| 821 | { |
| 822 | depth -= 1; |
| 823 | } |
| 824 | |
| 825 | p += 1; |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | if (p[-2] != '.') /* Not '...' */ |
| 830 | { |
| 831 | argtypes[argcount] = builtin_type_void; /* List terminator */ |
| 832 | } |
| 833 | else |
| 834 | { |
| 835 | argtypes[argcount] = NULL; /* Ellist terminator */ |
| 836 | } |
| 837 | |
| 838 | free (demangled_name); |
| 839 | |
| 840 | f = TYPE_FN_FIELDLIST1 (type, i); |
| 841 | TYPE_FN_FIELD_PHYSNAME (f, j) = mangled_name; |
| 842 | |
| 843 | /* Now update the old "stub" type into a real type. */ |
| 844 | mtype = TYPE_FN_FIELD_TYPE (f, j); |
| 845 | TYPE_DOMAIN_TYPE (mtype) = type; |
| 846 | TYPE_ARG_TYPES (mtype) = argtypes; |
| 847 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; |
| 848 | TYPE_FN_FIELD_STUB (f, j) = 0; |
| 849 | } |
| 850 | |
| 851 | const struct cplus_struct_type cplus_struct_default; |
| 852 | |
| 853 | void |
| 854 | allocate_cplus_struct_type (type) |
| 855 | struct type *type; |
| 856 | { |
| 857 | if (!HAVE_CPLUS_STRUCT (type)) |
| 858 | { |
| 859 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) |
| 860 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); |
| 861 | *(TYPE_CPLUS_SPECIFIC(type)) = cplus_struct_default; |
| 862 | } |
| 863 | } |
| 864 | |
| 865 | /* Helper function to initialize the standard scalar types. |
| 866 | |
| 867 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy |
| 868 | of the string pointed to by name in the type_obstack for that objfile, |
| 869 | and initialize the type name to that copy. There are places (mipsread.c |
| 870 | in particular, where init_type is called with a NULL value for NAME). */ |
| 871 | |
| 872 | struct type * |
| 873 | init_type (code, length, flags, name, objfile) |
| 874 | enum type_code code; |
| 875 | int length; |
| 876 | int flags; |
| 877 | char *name; |
| 878 | struct objfile *objfile; |
| 879 | { |
| 880 | register struct type *type; |
| 881 | |
| 882 | type = alloc_type (objfile); |
| 883 | TYPE_CODE (type) = code; |
| 884 | TYPE_LENGTH (type) = length; |
| 885 | TYPE_FLAGS (type) |= flags; |
| 886 | if ((name != NULL) && (objfile != NULL)) |
| 887 | { |
| 888 | TYPE_NAME (type) = |
| 889 | obsavestring (name, strlen (name), &objfile -> type_obstack); |
| 890 | } |
| 891 | else |
| 892 | { |
| 893 | TYPE_NAME (type) = name; |
| 894 | } |
| 895 | |
| 896 | /* C++ fancies. */ |
| 897 | |
| 898 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION) |
| 899 | { |
| 900 | INIT_CPLUS_SPECIFIC (type); |
| 901 | } |
| 902 | return (type); |
| 903 | } |
| 904 | |
| 905 | /* Look up a fundamental type for the specified objfile. |
| 906 | May need to construct such a type if this is the first use. |
| 907 | |
| 908 | Some object file formats (ELF, COFF, etc) do not define fundamental |
| 909 | types such as "int" or "double". Others (stabs for example), do |
| 910 | define fundamental types. |
| 911 | |
| 912 | For the formats which don't provide fundamental types, gdb can create |
| 913 | such types, using defaults reasonable for the current target machine. |
| 914 | |
| 915 | FIXME: Some compilers distinguish explicitly signed integral types |
| 916 | (signed short, signed int, signed long) from "regular" integral types |
| 917 | (short, int, long) in the debugging information. There is some dis- |
| 918 | agreement as to how useful this feature is. In particular, gcc does |
| 919 | not support this. Also, only some debugging formats allow the |
| 920 | distinction to be passed on to a debugger. For now, we always just |
| 921 | use "short", "int", or "long" as the type name, for both the implicit |
| 922 | and explicitly signed types. This also makes life easier for the |
| 923 | gdb test suite since we don't have to account for the differences |
| 924 | in output depending upon what the compiler and debugging format |
| 925 | support. We will probably have to re-examine the issue when gdb |
| 926 | starts taking it's fundamental type information directly from the |
| 927 | debugging information supplied by the compiler. fnf@cygnus.com */ |
| 928 | |
| 929 | struct type * |
| 930 | lookup_fundamental_type (objfile, typeid) |
| 931 | struct objfile *objfile; |
| 932 | int typeid; |
| 933 | { |
| 934 | register struct type *type = NULL; |
| 935 | register struct type **typep; |
| 936 | register int nbytes; |
| 937 | |
| 938 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) |
| 939 | { |
| 940 | error ("internal error - invalid fundamental type id %d", typeid); |
| 941 | } |
| 942 | else |
| 943 | { |
| 944 | /* If this is the first time we */ |
| 945 | if (objfile -> fundamental_types == NULL) |
| 946 | { |
| 947 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); |
| 948 | objfile -> fundamental_types = (struct type **) |
| 949 | obstack_alloc (&objfile -> type_obstack, nbytes); |
| 950 | memset ((char *) objfile -> fundamental_types, 0, nbytes); |
| 951 | } |
| 952 | typep = objfile -> fundamental_types + typeid; |
| 953 | if ((type = *typep) == NULL) |
| 954 | { |
| 955 | switch (typeid) |
| 956 | { |
| 957 | default: |
| 958 | error ("internal error: unhandled type id %d", typeid); |
| 959 | break; |
| 960 | case FT_VOID: |
| 961 | type = init_type (TYPE_CODE_VOID, |
| 962 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 963 | 0, |
| 964 | "void", objfile); |
| 965 | break; |
| 966 | case FT_BOOLEAN: |
| 967 | type = init_type (TYPE_CODE_INT, |
| 968 | TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 969 | TYPE_FLAG_UNSIGNED, |
| 970 | "boolean", objfile); |
| 971 | break; |
| 972 | case FT_STRING: |
| 973 | type = init_type (TYPE_CODE_PASCAL_ARRAY, |
| 974 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 975 | 0, |
| 976 | "string", objfile); |
| 977 | break; |
| 978 | case FT_CHAR: |
| 979 | type = init_type (TYPE_CODE_INT, |
| 980 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 981 | 0, |
| 982 | "char", objfile); |
| 983 | break; |
| 984 | case FT_SIGNED_CHAR: |
| 985 | type = init_type (TYPE_CODE_INT, |
| 986 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 987 | TYPE_FLAG_SIGNED, |
| 988 | "signed char", objfile); |
| 989 | break; |
| 990 | case FT_UNSIGNED_CHAR: |
| 991 | type = init_type (TYPE_CODE_INT, |
| 992 | TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 993 | TYPE_FLAG_UNSIGNED, |
| 994 | "unsigned char", objfile); |
| 995 | break; |
| 996 | case FT_SHORT: |
| 997 | type = init_type (TYPE_CODE_INT, |
| 998 | TARGET_SHORT_BIT / TARGET_CHAR_BIT, |
| 999 | 0, |
| 1000 | "short", objfile); |
| 1001 | break; |
| 1002 | case FT_SIGNED_SHORT: |
| 1003 | type = init_type (TYPE_CODE_INT, |
| 1004 | TARGET_SHORT_BIT / TARGET_CHAR_BIT, |
| 1005 | TYPE_FLAG_SIGNED, |
| 1006 | "short", objfile); /* FIXME -fnf */ |
| 1007 | break; |
| 1008 | case FT_UNSIGNED_SHORT: |
| 1009 | type = init_type (TYPE_CODE_INT, |
| 1010 | TARGET_SHORT_BIT / TARGET_CHAR_BIT, |
| 1011 | TYPE_FLAG_UNSIGNED, |
| 1012 | "unsigned short", objfile); |
| 1013 | break; |
| 1014 | case FT_INTEGER: |
| 1015 | type = init_type (TYPE_CODE_INT, |
| 1016 | TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 1017 | 0, |
| 1018 | "int", objfile); |
| 1019 | break; |
| 1020 | case FT_SIGNED_INTEGER: |
| 1021 | type = init_type (TYPE_CODE_INT, |
| 1022 | TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 1023 | TYPE_FLAG_SIGNED, |
| 1024 | "int", objfile); /* FIXME -fnf */ |
| 1025 | break; |
| 1026 | case FT_UNSIGNED_INTEGER: |
| 1027 | type = init_type (TYPE_CODE_INT, |
| 1028 | TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 1029 | TYPE_FLAG_UNSIGNED, |
| 1030 | "unsigned int", objfile); |
| 1031 | break; |
| 1032 | case FT_FIXED_DECIMAL: |
| 1033 | type = init_type (TYPE_CODE_INT, |
| 1034 | TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 1035 | 0, |
| 1036 | "fixed decimal", objfile); |
| 1037 | break; |
| 1038 | case FT_LONG: |
| 1039 | type = init_type (TYPE_CODE_INT, |
| 1040 | TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 1041 | 0, |
| 1042 | "long", objfile); |
| 1043 | break; |
| 1044 | case FT_SIGNED_LONG: |
| 1045 | type = init_type (TYPE_CODE_INT, |
| 1046 | TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 1047 | TYPE_FLAG_SIGNED, |
| 1048 | "long", objfile); /* FIXME -fnf */ |
| 1049 | break; |
| 1050 | case FT_UNSIGNED_LONG: |
| 1051 | type = init_type (TYPE_CODE_INT, |
| 1052 | TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 1053 | TYPE_FLAG_UNSIGNED, |
| 1054 | "unsigned long", objfile); |
| 1055 | break; |
| 1056 | case FT_LONG_LONG: |
| 1057 | type = init_type (TYPE_CODE_INT, |
| 1058 | TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
| 1059 | 0, |
| 1060 | "long long", objfile); |
| 1061 | break; |
| 1062 | case FT_SIGNED_LONG_LONG: |
| 1063 | type = init_type (TYPE_CODE_INT, |
| 1064 | TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
| 1065 | TYPE_FLAG_SIGNED, |
| 1066 | "signed long long", objfile); |
| 1067 | break; |
| 1068 | case FT_UNSIGNED_LONG_LONG: |
| 1069 | type = init_type (TYPE_CODE_INT, |
| 1070 | TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
| 1071 | TYPE_FLAG_UNSIGNED, |
| 1072 | "unsigned long long", objfile); |
| 1073 | break; |
| 1074 | case FT_FLOAT: |
| 1075 | type = init_type (TYPE_CODE_FLT, |
| 1076 | TARGET_FLOAT_BIT / TARGET_CHAR_BIT, |
| 1077 | 0, |
| 1078 | "float", objfile); |
| 1079 | break; |
| 1080 | case FT_DBL_PREC_FLOAT: |
| 1081 | type = init_type (TYPE_CODE_FLT, |
| 1082 | TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 1083 | 0, |
| 1084 | "double", objfile); |
| 1085 | break; |
| 1086 | case FT_FLOAT_DECIMAL: |
| 1087 | type = init_type (TYPE_CODE_FLT, |
| 1088 | TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 1089 | 0, |
| 1090 | "floating decimal", objfile); |
| 1091 | break; |
| 1092 | case FT_EXT_PREC_FLOAT: |
| 1093 | type = init_type (TYPE_CODE_FLT, |
| 1094 | TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 1095 | 0, |
| 1096 | "long double", objfile); |
| 1097 | break; |
| 1098 | case FT_COMPLEX: |
| 1099 | type = init_type (TYPE_CODE_FLT, |
| 1100 | TARGET_COMPLEX_BIT / TARGET_CHAR_BIT, |
| 1101 | 0, |
| 1102 | "complex", objfile); |
| 1103 | break; |
| 1104 | case FT_DBL_PREC_COMPLEX: |
| 1105 | type = init_type (TYPE_CODE_FLT, |
| 1106 | TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT, |
| 1107 | 0, |
| 1108 | "double complex", objfile); |
| 1109 | break; |
| 1110 | case FT_EXT_PREC_COMPLEX: |
| 1111 | type = init_type (TYPE_CODE_FLT, |
| 1112 | TARGET_DOUBLE_COMPLEX_BIT / TARGET_CHAR_BIT, |
| 1113 | 0, |
| 1114 | "long double complex", objfile); |
| 1115 | break; |
| 1116 | } |
| 1117 | /* Install the newly created type in the objfile's fundamental_types |
| 1118 | vector. */ |
| 1119 | *typep = type; |
| 1120 | } |
| 1121 | } |
| 1122 | return (type); |
| 1123 | } |
| 1124 | |
| 1125 | #if MAINTENANCE_CMDS |
| 1126 | |
| 1127 | static void |
| 1128 | print_bit_vector (bits, nbits) |
| 1129 | B_TYPE *bits; |
| 1130 | int nbits; |
| 1131 | { |
| 1132 | int bitno; |
| 1133 | |
| 1134 | for (bitno = 0; bitno < nbits; bitno++) |
| 1135 | { |
| 1136 | if ((bitno % 8) == 0) |
| 1137 | { |
| 1138 | puts_filtered (" "); |
| 1139 | } |
| 1140 | if (B_TST (bits, bitno)) |
| 1141 | { |
| 1142 | printf_filtered ("1"); |
| 1143 | } |
| 1144 | else |
| 1145 | { |
| 1146 | printf_filtered ("0"); |
| 1147 | } |
| 1148 | } |
| 1149 | } |
| 1150 | |
| 1151 | /* The args list is a strange beast. It is either terminated by a NULL |
| 1152 | pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID |
| 1153 | type for normal fixed argcount functions. (FIXME someday) |
| 1154 | Also note the first arg should be the "this" pointer, we may not want to |
| 1155 | include it since we may get into a infinitely recursive situation. */ |
| 1156 | |
| 1157 | static void |
| 1158 | print_arg_types (args, spaces) |
| 1159 | struct type **args; |
| 1160 | int spaces; |
| 1161 | { |
| 1162 | if (args != NULL) |
| 1163 | { |
| 1164 | while (*args != NULL) |
| 1165 | { |
| 1166 | recursive_dump_type (*args, spaces + 2); |
| 1167 | if ((*args++) -> code == TYPE_CODE_VOID) |
| 1168 | { |
| 1169 | break; |
| 1170 | } |
| 1171 | } |
| 1172 | } |
| 1173 | } |
| 1174 | |
| 1175 | static void |
| 1176 | dump_fn_fieldlists (type, spaces) |
| 1177 | struct type *type; |
| 1178 | int spaces; |
| 1179 | { |
| 1180 | int method_idx; |
| 1181 | int overload_idx; |
| 1182 | struct fn_field *f; |
| 1183 | |
| 1184 | printfi_filtered (spaces, "fn_fieldlists 0x%x\n", |
| 1185 | TYPE_FN_FIELDLISTS (type)); |
| 1186 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) |
| 1187 | { |
| 1188 | f = TYPE_FN_FIELDLIST1 (type, method_idx); |
| 1189 | printfi_filtered (spaces + 2, "[%d] name '%s' (0x%x) length %d\n", |
| 1190 | method_idx, |
| 1191 | TYPE_FN_FIELDLIST_NAME (type, method_idx), |
| 1192 | TYPE_FN_FIELDLIST_NAME (type, method_idx), |
| 1193 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
| 1194 | for (overload_idx = 0; |
| 1195 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); |
| 1196 | overload_idx++) |
| 1197 | { |
| 1198 | printfi_filtered (spaces + 4, "[%d] physname '%s' (0x%x)\n", |
| 1199 | overload_idx, |
| 1200 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
| 1201 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); |
| 1202 | printfi_filtered (spaces + 8, "type 0x%x\n", |
| 1203 | TYPE_FN_FIELD_TYPE (f, overload_idx)); |
| 1204 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), |
| 1205 | spaces + 8 + 2); |
| 1206 | printfi_filtered (spaces + 8, "args 0x%x\n", |
| 1207 | TYPE_FN_FIELD_ARGS (f, overload_idx)); |
| 1208 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces); |
| 1209 | printfi_filtered (spaces + 8, "fcontext 0x%x\n", |
| 1210 | TYPE_FN_FIELD_FCONTEXT (f, overload_idx)); |
| 1211 | printfi_filtered (spaces + 8, "is_const %d\n", |
| 1212 | TYPE_FN_FIELD_CONST (f, overload_idx)); |
| 1213 | printfi_filtered (spaces + 8, "is_volatile %d\n", |
| 1214 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); |
| 1215 | printfi_filtered (spaces + 8, "is_private %d\n", |
| 1216 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); |
| 1217 | printfi_filtered (spaces + 8, "is_protected %d\n", |
| 1218 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); |
| 1219 | printfi_filtered (spaces + 8, "is_stub %d\n", |
| 1220 | TYPE_FN_FIELD_STUB (f, overload_idx)); |
| 1221 | printfi_filtered (spaces + 8, "voffset %u\n", |
| 1222 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); |
| 1223 | } |
| 1224 | } |
| 1225 | } |
| 1226 | |
| 1227 | static void |
| 1228 | print_cplus_stuff (type, spaces) |
| 1229 | struct type *type; |
| 1230 | int spaces; |
| 1231 | { |
| 1232 | int bitno; |
| 1233 | |
| 1234 | printfi_filtered (spaces, "n_baseclasses %d\n", |
| 1235 | TYPE_N_BASECLASSES (type)); |
| 1236 | printfi_filtered (spaces, "nfn_fields %d\n", |
| 1237 | TYPE_NFN_FIELDS (type)); |
| 1238 | printfi_filtered (spaces, "nfn_fields_total %d\n", |
| 1239 | TYPE_NFN_FIELDS_TOTAL (type)); |
| 1240 | if (TYPE_N_BASECLASSES (type) > 0) |
| 1241 | { |
| 1242 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *0x%x)", |
| 1243 | TYPE_N_BASECLASSES (type), |
| 1244 | TYPE_FIELD_VIRTUAL_BITS (type)); |
| 1245 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), |
| 1246 | TYPE_N_BASECLASSES (type)); |
| 1247 | puts_filtered ("\n"); |
| 1248 | } |
| 1249 | if (TYPE_NFIELDS (type) > 0) |
| 1250 | { |
| 1251 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) |
| 1252 | { |
| 1253 | printfi_filtered (spaces, "private_field_bits (%d bits at *0x%x)", |
| 1254 | TYPE_NFIELDS (type), |
| 1255 | TYPE_FIELD_PRIVATE_BITS (type)); |
| 1256 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), |
| 1257 | TYPE_NFIELDS (type)); |
| 1258 | puts_filtered ("\n"); |
| 1259 | } |
| 1260 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) |
| 1261 | { |
| 1262 | printfi_filtered (spaces, "protected_field_bits (%d bits at *0x%x)", |
| 1263 | TYPE_NFIELDS (type), |
| 1264 | TYPE_FIELD_PROTECTED_BITS (type)); |
| 1265 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), |
| 1266 | TYPE_NFIELDS (type)); |
| 1267 | puts_filtered ("\n"); |
| 1268 | } |
| 1269 | } |
| 1270 | if (TYPE_NFN_FIELDS (type) > 0) |
| 1271 | { |
| 1272 | dump_fn_fieldlists (type, spaces); |
| 1273 | } |
| 1274 | } |
| 1275 | |
| 1276 | void |
| 1277 | recursive_dump_type (type, spaces) |
| 1278 | struct type *type; |
| 1279 | int spaces; |
| 1280 | { |
| 1281 | int idx; |
| 1282 | |
| 1283 | printfi_filtered (spaces, "type node 0x%x\n", type); |
| 1284 | printfi_filtered (spaces, "name '%s' (0x%x)\n", TYPE_NAME (type), |
| 1285 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); |
| 1286 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
| 1287 | switch (TYPE_CODE (type)) |
| 1288 | { |
| 1289 | case TYPE_CODE_UNDEF: |
| 1290 | printf_filtered ("(TYPE_CODE_UNDEF)"); |
| 1291 | break; |
| 1292 | case TYPE_CODE_PTR: |
| 1293 | printf_filtered ("(TYPE_CODE_PTR)"); |
| 1294 | break; |
| 1295 | case TYPE_CODE_ARRAY: |
| 1296 | printf_filtered ("(TYPE_CODE_ARRAY)"); |
| 1297 | break; |
| 1298 | case TYPE_CODE_STRUCT: |
| 1299 | printf_filtered ("(TYPE_CODE_STRUCT)"); |
| 1300 | break; |
| 1301 | case TYPE_CODE_UNION: |
| 1302 | printf_filtered ("(TYPE_CODE_UNION)"); |
| 1303 | break; |
| 1304 | case TYPE_CODE_ENUM: |
| 1305 | printf_filtered ("(TYPE_CODE_ENUM)"); |
| 1306 | break; |
| 1307 | case TYPE_CODE_FUNC: |
| 1308 | printf_filtered ("(TYPE_CODE_FUNC)"); |
| 1309 | break; |
| 1310 | case TYPE_CODE_INT: |
| 1311 | printf_filtered ("(TYPE_CODE_INT)"); |
| 1312 | break; |
| 1313 | case TYPE_CODE_FLT: |
| 1314 | printf_filtered ("(TYPE_CODE_FLT)"); |
| 1315 | break; |
| 1316 | case TYPE_CODE_VOID: |
| 1317 | printf_filtered ("(TYPE_CODE_VOID)"); |
| 1318 | break; |
| 1319 | case TYPE_CODE_SET: |
| 1320 | printf_filtered ("(TYPE_CODE_SET)"); |
| 1321 | break; |
| 1322 | case TYPE_CODE_RANGE: |
| 1323 | printf_filtered ("(TYPE_CODE_RANGE)"); |
| 1324 | break; |
| 1325 | case TYPE_CODE_PASCAL_ARRAY: |
| 1326 | printf_filtered ("(TYPE_CODE_PASCAL_ARRAY)"); |
| 1327 | break; |
| 1328 | case TYPE_CODE_ERROR: |
| 1329 | printf_filtered ("(TYPE_CODE_ERROR)"); |
| 1330 | break; |
| 1331 | case TYPE_CODE_MEMBER: |
| 1332 | printf_filtered ("(TYPE_CODE_MEMBER)"); |
| 1333 | break; |
| 1334 | case TYPE_CODE_METHOD: |
| 1335 | printf_filtered ("(TYPE_CODE_METHOD)"); |
| 1336 | break; |
| 1337 | case TYPE_CODE_REF: |
| 1338 | printf_filtered ("(TYPE_CODE_REF)"); |
| 1339 | break; |
| 1340 | case TYPE_CODE_CHAR: |
| 1341 | printf_filtered ("(TYPE_CODE_CHAR)"); |
| 1342 | break; |
| 1343 | case TYPE_CODE_BOOL: |
| 1344 | printf_filtered ("(TYPE_CODE_BOOL)"); |
| 1345 | break; |
| 1346 | default: |
| 1347 | printf_filtered ("(UNKNOWN TYPE CODE)"); |
| 1348 | break; |
| 1349 | } |
| 1350 | puts_filtered ("\n"); |
| 1351 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); |
| 1352 | printfi_filtered (spaces, "objfile 0x%x\n", TYPE_OBJFILE (type)); |
| 1353 | printfi_filtered (spaces, "target_type 0x%x\n", TYPE_TARGET_TYPE (type)); |
| 1354 | if (TYPE_TARGET_TYPE (type) != NULL) |
| 1355 | { |
| 1356 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); |
| 1357 | } |
| 1358 | printfi_filtered (spaces, "pointer_type 0x%x\n", |
| 1359 | TYPE_POINTER_TYPE (type)); |
| 1360 | printfi_filtered (spaces, "reference_type 0x%x\n", |
| 1361 | TYPE_REFERENCE_TYPE (type)); |
| 1362 | printfi_filtered (spaces, "function_type 0x%x\n", |
| 1363 | TYPE_FUNCTION_TYPE (type)); |
| 1364 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); |
| 1365 | if (TYPE_FLAGS (type) & TYPE_FLAG_UNSIGNED) |
| 1366 | { |
| 1367 | puts_filtered (" TYPE_FLAG_UNSIGNED"); |
| 1368 | } |
| 1369 | if (TYPE_FLAGS (type) & TYPE_FLAG_SIGNED) |
| 1370 | { |
| 1371 | puts_filtered (" TYPE_FLAG_SIGNED"); |
| 1372 | } |
| 1373 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) |
| 1374 | { |
| 1375 | puts_filtered (" TYPE_FLAG_STUB"); |
| 1376 | } |
| 1377 | puts_filtered ("\n"); |
| 1378 | printfi_filtered (spaces, "nfields %d 0x%x\n", TYPE_NFIELDS (type), |
| 1379 | TYPE_FIELDS (type)); |
| 1380 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) |
| 1381 | { |
| 1382 | printfi_filtered (spaces + 2, |
| 1383 | "[%d] bitpos %d bitsize %d type 0x%x name '%s' (0x%x)\n", |
| 1384 | idx, TYPE_FIELD_BITPOS (type, idx), |
| 1385 | TYPE_FIELD_BITSIZE (type, idx), |
| 1386 | TYPE_FIELD_TYPE (type, idx), |
| 1387 | TYPE_FIELD_NAME (type, idx), |
| 1388 | TYPE_FIELD_NAME (type, idx) != NULL |
| 1389 | ? TYPE_FIELD_NAME (type, idx) |
| 1390 | : "<NULL>"); |
| 1391 | if (TYPE_FIELD_TYPE (type, idx) != NULL) |
| 1392 | { |
| 1393 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); |
| 1394 | } |
| 1395 | } |
| 1396 | printfi_filtered (spaces, "vptr_basetype 0x%x\n", |
| 1397 | TYPE_VPTR_BASETYPE (type)); |
| 1398 | if (TYPE_VPTR_BASETYPE (type) != NULL) |
| 1399 | { |
| 1400 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); |
| 1401 | } |
| 1402 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
| 1403 | switch (TYPE_CODE (type)) |
| 1404 | { |
| 1405 | case TYPE_CODE_METHOD: |
| 1406 | case TYPE_CODE_FUNC: |
| 1407 | printfi_filtered (spaces, "arg_types 0x%x\n", TYPE_ARG_TYPES (type)); |
| 1408 | print_arg_types (TYPE_ARG_TYPES (type), spaces); |
| 1409 | break; |
| 1410 | |
| 1411 | case TYPE_CODE_STRUCT: |
| 1412 | printfi_filtered (spaces, "cplus_stuff 0x%x\n", |
| 1413 | TYPE_CPLUS_SPECIFIC (type)); |
| 1414 | print_cplus_stuff (type, spaces); |
| 1415 | break; |
| 1416 | |
| 1417 | default: |
| 1418 | /* We have to pick one of the union types to be able print and test |
| 1419 | the value. Pick cplus_struct_type, even though we know it isn't |
| 1420 | any particular one. */ |
| 1421 | printfi_filtered (spaces, "type_specific 0x%x", |
| 1422 | TYPE_CPLUS_SPECIFIC (type)); |
| 1423 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
| 1424 | { |
| 1425 | printf_filtered (" (unknown data form)"); |
| 1426 | } |
| 1427 | printf_filtered ("\n"); |
| 1428 | break; |
| 1429 | |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | #endif /* MAINTENANCE_CMDS */ |