| 1 | /* Support routines for manipulating internal types for GDB. |
| 2 | Copyright (C) 1992, 1993, 1994, 1995, 1996 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "gdb_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 | #include "complaints.h" |
| 34 | |
| 35 | /* These variables point to the objects |
| 36 | representing the predefined C data types. */ |
| 37 | |
| 38 | struct type *builtin_type_void; |
| 39 | struct type *builtin_type_char; |
| 40 | struct type *builtin_type_short; |
| 41 | struct type *builtin_type_int; |
| 42 | struct type *builtin_type_long; |
| 43 | struct type *builtin_type_long_long; |
| 44 | struct type *builtin_type_signed_char; |
| 45 | struct type *builtin_type_unsigned_char; |
| 46 | struct type *builtin_type_unsigned_short; |
| 47 | struct type *builtin_type_unsigned_int; |
| 48 | struct type *builtin_type_unsigned_long; |
| 49 | struct type *builtin_type_unsigned_long_long; |
| 50 | struct type *builtin_type_float; |
| 51 | struct type *builtin_type_double; |
| 52 | struct type *builtin_type_long_double; |
| 53 | struct type *builtin_type_complex; |
| 54 | struct type *builtin_type_double_complex; |
| 55 | struct type *builtin_type_string; |
| 56 | |
| 57 | struct extra { char str[128]; int len; }; /* maximum extention is 128! FIXME */ |
| 58 | |
| 59 | static void add_name PARAMS ((struct extra *, char *)); |
| 60 | static void add_mangled_type PARAMS ((struct extra *, struct type *)); |
| 61 | #if 0 |
| 62 | static void cfront_mangle_name PARAMS ((struct type *, int, int)); |
| 63 | #endif |
| 64 | static void print_bit_vector PARAMS ((B_TYPE *, int)); |
| 65 | static void print_arg_types PARAMS ((struct type **, int)); |
| 66 | static void dump_fn_fieldlists PARAMS ((struct type *, int)); |
| 67 | static void print_cplus_stuff PARAMS ((struct type *, int)); |
| 68 | |
| 69 | /* Alloc a new type structure and fill it with some defaults. If |
| 70 | OBJFILE is non-NULL, then allocate the space for the type structure |
| 71 | in that objfile's type_obstack. */ |
| 72 | |
| 73 | struct type * |
| 74 | alloc_type (objfile) |
| 75 | struct objfile *objfile; |
| 76 | { |
| 77 | register struct type *type; |
| 78 | |
| 79 | /* Alloc the structure and start off with all fields zeroed. */ |
| 80 | |
| 81 | if (objfile == NULL) |
| 82 | { |
| 83 | type = (struct type *) xmalloc (sizeof (struct type)); |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | type = (struct type *) obstack_alloc (&objfile -> type_obstack, |
| 88 | sizeof (struct type)); |
| 89 | OBJSTAT (objfile, n_types++); |
| 90 | } |
| 91 | memset ((char *) type, 0, sizeof (struct type)); |
| 92 | |
| 93 | /* Initialize the fields that might not be zero. */ |
| 94 | |
| 95 | TYPE_CODE (type) = TYPE_CODE_UNDEF; |
| 96 | TYPE_OBJFILE (type) = objfile; |
| 97 | TYPE_VPTR_FIELDNO (type) = -1; |
| 98 | |
| 99 | return (type); |
| 100 | } |
| 101 | |
| 102 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
| 103 | to a pointer to memory where the pointer type should be stored. |
| 104 | If *TYPEPTR is zero, update it to point to the pointer type we return. |
| 105 | We allocate new memory if needed. */ |
| 106 | |
| 107 | struct type * |
| 108 | make_pointer_type (type, typeptr) |
| 109 | struct type *type; |
| 110 | struct type **typeptr; |
| 111 | { |
| 112 | register struct type *ntype; /* New type */ |
| 113 | struct objfile *objfile; |
| 114 | |
| 115 | ntype = TYPE_POINTER_TYPE (type); |
| 116 | |
| 117 | if (ntype) |
| 118 | if (typeptr == 0) |
| 119 | return ntype; /* Don't care about alloc, and have new type. */ |
| 120 | else if (*typeptr == 0) |
| 121 | { |
| 122 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
| 123 | return ntype; |
| 124 | } |
| 125 | |
| 126 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| 127 | { |
| 128 | ntype = alloc_type (TYPE_OBJFILE (type)); |
| 129 | if (typeptr) |
| 130 | *typeptr = ntype; |
| 131 | } |
| 132 | else /* We have storage, but need to reset it. */ |
| 133 | { |
| 134 | ntype = *typeptr; |
| 135 | objfile = TYPE_OBJFILE (ntype); |
| 136 | memset ((char *) ntype, 0, sizeof (struct type)); |
| 137 | TYPE_OBJFILE (ntype) = objfile; |
| 138 | } |
| 139 | |
| 140 | TYPE_TARGET_TYPE (ntype) = type; |
| 141 | TYPE_POINTER_TYPE (type) = ntype; |
| 142 | |
| 143 | /* FIXME! Assume the machine has only one representation for pointers! */ |
| 144 | |
| 145 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; |
| 146 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
| 147 | |
| 148 | /* pointers are unsigned */ |
| 149 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; |
| 150 | |
| 151 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
| 152 | TYPE_POINTER_TYPE (type) = ntype; |
| 153 | |
| 154 | return ntype; |
| 155 | } |
| 156 | |
| 157 | /* Given a type TYPE, return a type of pointers to that type. |
| 158 | May need to construct such a type if this is the first use. */ |
| 159 | |
| 160 | struct type * |
| 161 | lookup_pointer_type (type) |
| 162 | struct type *type; |
| 163 | { |
| 164 | return make_pointer_type (type, (struct type **)0); |
| 165 | } |
| 166 | |
| 167 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points |
| 168 | to a pointer to memory where the reference type should be stored. |
| 169 | If *TYPEPTR is zero, update it to point to the reference type we return. |
| 170 | We allocate new memory if needed. */ |
| 171 | |
| 172 | struct type * |
| 173 | make_reference_type (type, typeptr) |
| 174 | struct type *type; |
| 175 | struct type **typeptr; |
| 176 | { |
| 177 | register struct type *ntype; /* New type */ |
| 178 | struct objfile *objfile; |
| 179 | |
| 180 | ntype = TYPE_REFERENCE_TYPE (type); |
| 181 | |
| 182 | if (ntype) |
| 183 | if (typeptr == 0) |
| 184 | return ntype; /* Don't care about alloc, and have new type. */ |
| 185 | else if (*typeptr == 0) |
| 186 | { |
| 187 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
| 188 | return ntype; |
| 189 | } |
| 190 | |
| 191 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| 192 | { |
| 193 | ntype = alloc_type (TYPE_OBJFILE (type)); |
| 194 | if (typeptr) |
| 195 | *typeptr = ntype; |
| 196 | } |
| 197 | else /* We have storage, but need to reset it. */ |
| 198 | { |
| 199 | ntype = *typeptr; |
| 200 | objfile = TYPE_OBJFILE (ntype); |
| 201 | memset ((char *) ntype, 0, sizeof (struct type)); |
| 202 | TYPE_OBJFILE (ntype) = objfile; |
| 203 | } |
| 204 | |
| 205 | TYPE_TARGET_TYPE (ntype) = type; |
| 206 | TYPE_REFERENCE_TYPE (type) = ntype; |
| 207 | |
| 208 | /* FIXME! Assume the machine has only one representation for references, |
| 209 | and that it matches the (only) representation for pointers! */ |
| 210 | |
| 211 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; |
| 212 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
| 213 | |
| 214 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
| 215 | TYPE_REFERENCE_TYPE (type) = ntype; |
| 216 | |
| 217 | return ntype; |
| 218 | } |
| 219 | |
| 220 | /* Same as above, but caller doesn't care about memory allocation details. */ |
| 221 | |
| 222 | struct type * |
| 223 | lookup_reference_type (type) |
| 224 | struct type *type; |
| 225 | { |
| 226 | return make_reference_type (type, (struct type **)0); |
| 227 | } |
| 228 | |
| 229 | /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points |
| 230 | to a pointer to memory where the function type should be stored. |
| 231 | If *TYPEPTR is zero, update it to point to the function type we return. |
| 232 | We allocate new memory if needed. */ |
| 233 | |
| 234 | struct type * |
| 235 | make_function_type (type, typeptr) |
| 236 | struct type *type; |
| 237 | struct type **typeptr; |
| 238 | { |
| 239 | register struct type *ntype; /* New type */ |
| 240 | struct objfile *objfile; |
| 241 | |
| 242 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| 243 | { |
| 244 | ntype = alloc_type (TYPE_OBJFILE (type)); |
| 245 | if (typeptr) |
| 246 | *typeptr = ntype; |
| 247 | } |
| 248 | else /* We have storage, but need to reset it. */ |
| 249 | { |
| 250 | ntype = *typeptr; |
| 251 | objfile = TYPE_OBJFILE (ntype); |
| 252 | memset ((char *) ntype, 0, sizeof (struct type)); |
| 253 | TYPE_OBJFILE (ntype) = objfile; |
| 254 | } |
| 255 | |
| 256 | TYPE_TARGET_TYPE (ntype) = type; |
| 257 | |
| 258 | TYPE_LENGTH (ntype) = 1; |
| 259 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; |
| 260 | |
| 261 | return ntype; |
| 262 | } |
| 263 | |
| 264 | |
| 265 | /* Given a type TYPE, return a type of functions that return that type. |
| 266 | May need to construct such a type if this is the first use. */ |
| 267 | |
| 268 | struct type * |
| 269 | lookup_function_type (type) |
| 270 | struct type *type; |
| 271 | { |
| 272 | return make_function_type (type, (struct type **)0); |
| 273 | } |
| 274 | |
| 275 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
| 276 | May need to construct such a type if this is the first use. |
| 277 | The TYPE is the type of the member. The DOMAIN is the type |
| 278 | of the aggregate that the member belongs to. */ |
| 279 | |
| 280 | struct type * |
| 281 | lookup_member_type (type, domain) |
| 282 | struct type *type; |
| 283 | struct type *domain; |
| 284 | { |
| 285 | register struct type *mtype; |
| 286 | |
| 287 | mtype = alloc_type (TYPE_OBJFILE (type)); |
| 288 | smash_to_member_type (mtype, domain, type); |
| 289 | return (mtype); |
| 290 | } |
| 291 | |
| 292 | /* Allocate a stub method whose return type is TYPE. |
| 293 | This apparently happens for speed of symbol reading, since parsing |
| 294 | out the arguments to the method is cpu-intensive, the way we are doing |
| 295 | it. So, we will fill in arguments later. |
| 296 | This always returns a fresh type. */ |
| 297 | |
| 298 | struct type * |
| 299 | allocate_stub_method (type) |
| 300 | struct type *type; |
| 301 | { |
| 302 | struct type *mtype; |
| 303 | |
| 304 | mtype = alloc_type (TYPE_OBJFILE (type)); |
| 305 | TYPE_TARGET_TYPE (mtype) = type; |
| 306 | /* _DOMAIN_TYPE (mtype) = unknown yet */ |
| 307 | /* _ARG_TYPES (mtype) = unknown yet */ |
| 308 | TYPE_FLAGS (mtype) = TYPE_FLAG_STUB; |
| 309 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; |
| 310 | TYPE_LENGTH (mtype) = 1; |
| 311 | return (mtype); |
| 312 | } |
| 313 | |
| 314 | /* Create a range type using either a blank type supplied in RESULT_TYPE, |
| 315 | or creating a new type, inheriting the objfile from INDEX_TYPE. |
| 316 | |
| 317 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to |
| 318 | HIGH_BOUND, inclusive. |
| 319 | |
| 320 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
| 321 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ |
| 322 | |
| 323 | struct type * |
| 324 | create_range_type (result_type, index_type, low_bound, high_bound) |
| 325 | struct type *result_type; |
| 326 | struct type *index_type; |
| 327 | int low_bound; |
| 328 | int high_bound; |
| 329 | { |
| 330 | if (result_type == NULL) |
| 331 | { |
| 332 | result_type = alloc_type (TYPE_OBJFILE (index_type)); |
| 333 | } |
| 334 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
| 335 | TYPE_TARGET_TYPE (result_type) = index_type; |
| 336 | if (TYPE_FLAGS (index_type) & TYPE_FLAG_STUB) |
| 337 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; |
| 338 | else |
| 339 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); |
| 340 | TYPE_NFIELDS (result_type) = 2; |
| 341 | TYPE_FIELDS (result_type) = (struct field *) |
| 342 | TYPE_ALLOC (result_type, 2 * sizeof (struct field)); |
| 343 | memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); |
| 344 | TYPE_FIELD_BITPOS (result_type, 0) = low_bound; |
| 345 | TYPE_FIELD_BITPOS (result_type, 1) = high_bound; |
| 346 | TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */ |
| 347 | TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */ |
| 348 | |
| 349 | return (result_type); |
| 350 | } |
| 351 | |
| 352 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE. |
| 353 | Return 1 of type is a range type, 0 if it is discrete (and bounds |
| 354 | will fit in LONGEST), or -1 otherwise. */ |
| 355 | |
| 356 | int |
| 357 | get_discrete_bounds (type, lowp, highp) |
| 358 | struct type *type; |
| 359 | LONGEST *lowp, *highp; |
| 360 | { |
| 361 | CHECK_TYPEDEF (type); |
| 362 | switch (TYPE_CODE (type)) |
| 363 | { |
| 364 | case TYPE_CODE_RANGE: |
| 365 | *lowp = TYPE_LOW_BOUND (type); |
| 366 | *highp = TYPE_HIGH_BOUND (type); |
| 367 | return 1; |
| 368 | case TYPE_CODE_ENUM: |
| 369 | if (TYPE_NFIELDS (type) > 0) |
| 370 | { |
| 371 | /* The enums may not be sorted by value, so search all |
| 372 | entries */ |
| 373 | int i; |
| 374 | |
| 375 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); |
| 376 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
| 377 | { |
| 378 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) |
| 379 | *lowp = TYPE_FIELD_BITPOS (type, i); |
| 380 | if (TYPE_FIELD_BITPOS (type, i) > *highp) |
| 381 | *highp = TYPE_FIELD_BITPOS (type, i); |
| 382 | } |
| 383 | } |
| 384 | else |
| 385 | { |
| 386 | *lowp = 0; |
| 387 | *highp = -1; |
| 388 | } |
| 389 | return 0; |
| 390 | case TYPE_CODE_BOOL: |
| 391 | *lowp = 0; |
| 392 | *highp = 1; |
| 393 | return 0; |
| 394 | case TYPE_CODE_INT: |
| 395 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
| 396 | return -1; |
| 397 | if (!TYPE_UNSIGNED (type)) |
| 398 | { |
| 399 | *lowp = - (1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
| 400 | *highp = -*lowp - 1; |
| 401 | return 0; |
| 402 | } |
| 403 | /* ... fall through for unsigned ints ... */ |
| 404 | case TYPE_CODE_CHAR: |
| 405 | *lowp = 0; |
| 406 | /* This round-about calculation is to avoid shifting by |
| 407 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
| 408 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
| 409 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
| 410 | *highp = (*highp - 1) | *highp; |
| 411 | return 0; |
| 412 | default: |
| 413 | return -1; |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | /* Create an array type using either a blank type supplied in RESULT_TYPE, |
| 418 | or creating a new type, inheriting the objfile from RANGE_TYPE. |
| 419 | |
| 420 | Elements will be of type ELEMENT_TYPE, the indices will be of type |
| 421 | RANGE_TYPE. |
| 422 | |
| 423 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
| 424 | sure it is TYPE_CODE_UNDEF before we bash it into an array type? */ |
| 425 | |
| 426 | struct type * |
| 427 | create_array_type (result_type, element_type, range_type) |
| 428 | struct type *result_type; |
| 429 | struct type *element_type; |
| 430 | struct type *range_type; |
| 431 | { |
| 432 | LONGEST low_bound, high_bound; |
| 433 | |
| 434 | if (result_type == NULL) |
| 435 | { |
| 436 | result_type = alloc_type (TYPE_OBJFILE (range_type)); |
| 437 | } |
| 438 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
| 439 | TYPE_TARGET_TYPE (result_type) = element_type; |
| 440 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) |
| 441 | low_bound = high_bound = 0; |
| 442 | CHECK_TYPEDEF (element_type); |
| 443 | TYPE_LENGTH (result_type) = |
| 444 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); |
| 445 | TYPE_NFIELDS (result_type) = 1; |
| 446 | TYPE_FIELDS (result_type) = |
| 447 | (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); |
| 448 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); |
| 449 | TYPE_FIELD_TYPE (result_type, 0) = range_type; |
| 450 | TYPE_VPTR_FIELDNO (result_type) = -1; |
| 451 | |
| 452 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ |
| 453 | if (TYPE_LENGTH (result_type) == 0) |
| 454 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; |
| 455 | |
| 456 | return (result_type); |
| 457 | } |
| 458 | |
| 459 | /* Create a string type using either a blank type supplied in RESULT_TYPE, |
| 460 | or creating a new type. String types are similar enough to array of |
| 461 | char types that we can use create_array_type to build the basic type |
| 462 | and then bash it into a string type. |
| 463 | |
| 464 | For fixed length strings, the range type contains 0 as the lower |
| 465 | bound and the length of the string minus one as the upper bound. |
| 466 | |
| 467 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
| 468 | sure it is TYPE_CODE_UNDEF before we bash it into a string type? */ |
| 469 | |
| 470 | struct type * |
| 471 | create_string_type (result_type, range_type) |
| 472 | struct type *result_type; |
| 473 | struct type *range_type; |
| 474 | { |
| 475 | result_type = create_array_type (result_type, |
| 476 | *current_language->string_char_type, |
| 477 | range_type); |
| 478 | TYPE_CODE (result_type) = TYPE_CODE_STRING; |
| 479 | return (result_type); |
| 480 | } |
| 481 | |
| 482 | struct type * |
| 483 | create_set_type (result_type, domain_type) |
| 484 | struct type *result_type; |
| 485 | struct type *domain_type; |
| 486 | { |
| 487 | LONGEST low_bound, high_bound, bit_length; |
| 488 | if (result_type == NULL) |
| 489 | { |
| 490 | result_type = alloc_type (TYPE_OBJFILE (domain_type)); |
| 491 | } |
| 492 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
| 493 | TYPE_NFIELDS (result_type) = 1; |
| 494 | TYPE_FIELDS (result_type) = (struct field *) |
| 495 | TYPE_ALLOC (result_type, 1 * sizeof (struct field)); |
| 496 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); |
| 497 | |
| 498 | if (! (TYPE_FLAGS (domain_type) & TYPE_FLAG_STUB)) |
| 499 | { |
| 500 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
| 501 | low_bound = high_bound = 0; |
| 502 | bit_length = high_bound - low_bound + 1; |
| 503 | TYPE_LENGTH (result_type) |
| 504 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; |
| 505 | } |
| 506 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; |
| 507 | return (result_type); |
| 508 | } |
| 509 | |
| 510 | /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. |
| 511 | A MEMBER is a wierd thing -- it amounts to a typed offset into |
| 512 | a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't |
| 513 | include the offset (that's the value of the MEMBER itself), but does |
| 514 | include the structure type into which it points (for some reason). |
| 515 | |
| 516 | When "smashing" the type, we preserve the objfile that the |
| 517 | old type pointed to, since we aren't changing where the type is actually |
| 518 | allocated. */ |
| 519 | |
| 520 | void |
| 521 | smash_to_member_type (type, domain, to_type) |
| 522 | struct type *type; |
| 523 | struct type *domain; |
| 524 | struct type *to_type; |
| 525 | { |
| 526 | struct objfile *objfile; |
| 527 | |
| 528 | objfile = TYPE_OBJFILE (type); |
| 529 | |
| 530 | memset ((char *) type, 0, sizeof (struct type)); |
| 531 | TYPE_OBJFILE (type) = objfile; |
| 532 | TYPE_TARGET_TYPE (type) = to_type; |
| 533 | TYPE_DOMAIN_TYPE (type) = domain; |
| 534 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
| 535 | TYPE_CODE (type) = TYPE_CODE_MEMBER; |
| 536 | } |
| 537 | |
| 538 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
| 539 | METHOD just means `function that gets an extra "this" argument'. |
| 540 | |
| 541 | When "smashing" the type, we preserve the objfile that the |
| 542 | old type pointed to, since we aren't changing where the type is actually |
| 543 | allocated. */ |
| 544 | |
| 545 | void |
| 546 | smash_to_method_type (type, domain, to_type, args) |
| 547 | struct type *type; |
| 548 | struct type *domain; |
| 549 | struct type *to_type; |
| 550 | struct type **args; |
| 551 | { |
| 552 | struct objfile *objfile; |
| 553 | |
| 554 | objfile = TYPE_OBJFILE (type); |
| 555 | |
| 556 | memset ((char *) type, 0, sizeof (struct type)); |
| 557 | TYPE_OBJFILE (type) = objfile; |
| 558 | TYPE_TARGET_TYPE (type) = to_type; |
| 559 | TYPE_DOMAIN_TYPE (type) = domain; |
| 560 | TYPE_ARG_TYPES (type) = args; |
| 561 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
| 562 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
| 563 | } |
| 564 | |
| 565 | /* Return a typename for a struct/union/enum type without "struct ", |
| 566 | "union ", or "enum ". If the type has a NULL name, return NULL. */ |
| 567 | |
| 568 | char * |
| 569 | type_name_no_tag (type) |
| 570 | register const struct type *type; |
| 571 | { |
| 572 | if (TYPE_TAG_NAME (type) != NULL) |
| 573 | return TYPE_TAG_NAME (type); |
| 574 | |
| 575 | /* Is there code which expects this to return the name if there is no |
| 576 | tag name? My guess is that this is mainly used for C++ in cases where |
| 577 | the two will always be the same. */ |
| 578 | return TYPE_NAME (type); |
| 579 | } |
| 580 | |
| 581 | /* Lookup a primitive type named NAME. |
| 582 | Return zero if NAME is not a primitive type.*/ |
| 583 | |
| 584 | struct type * |
| 585 | lookup_primitive_typename (name) |
| 586 | char *name; |
| 587 | { |
| 588 | struct type ** const *p; |
| 589 | |
| 590 | for (p = current_language -> la_builtin_type_vector; *p != NULL; p++) |
| 591 | { |
| 592 | if (STREQ ((**p) -> name, name)) |
| 593 | { |
| 594 | return (**p); |
| 595 | } |
| 596 | } |
| 597 | return (NULL); |
| 598 | } |
| 599 | |
| 600 | /* Lookup a typedef or primitive type named NAME, |
| 601 | visible in lexical block BLOCK. |
| 602 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ |
| 603 | |
| 604 | struct type * |
| 605 | lookup_typename (name, block, noerr) |
| 606 | char *name; |
| 607 | struct block *block; |
| 608 | int noerr; |
| 609 | { |
| 610 | register struct symbol *sym; |
| 611 | register struct type *tmp; |
| 612 | |
| 613 | sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); |
| 614 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
| 615 | { |
| 616 | tmp = lookup_primitive_typename (name); |
| 617 | if (tmp) |
| 618 | { |
| 619 | return (tmp); |
| 620 | } |
| 621 | else if (!tmp && noerr) |
| 622 | { |
| 623 | return (NULL); |
| 624 | } |
| 625 | else |
| 626 | { |
| 627 | error ("No type named %s.", name); |
| 628 | } |
| 629 | } |
| 630 | return (SYMBOL_TYPE (sym)); |
| 631 | } |
| 632 | |
| 633 | struct type * |
| 634 | lookup_unsigned_typename (name) |
| 635 | char *name; |
| 636 | { |
| 637 | char *uns = alloca (strlen (name) + 10); |
| 638 | |
| 639 | strcpy (uns, "unsigned "); |
| 640 | strcpy (uns + 9, name); |
| 641 | return (lookup_typename (uns, (struct block *) NULL, 0)); |
| 642 | } |
| 643 | |
| 644 | struct type * |
| 645 | lookup_signed_typename (name) |
| 646 | char *name; |
| 647 | { |
| 648 | struct type *t; |
| 649 | char *uns = alloca (strlen (name) + 8); |
| 650 | |
| 651 | strcpy (uns, "signed "); |
| 652 | strcpy (uns + 7, name); |
| 653 | t = lookup_typename (uns, (struct block *) NULL, 1); |
| 654 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
| 655 | if (t != NULL) |
| 656 | return t; |
| 657 | return lookup_typename (name, (struct block *) NULL, 0); |
| 658 | } |
| 659 | |
| 660 | /* Lookup a structure type named "struct NAME", |
| 661 | visible in lexical block BLOCK. */ |
| 662 | |
| 663 | struct type * |
| 664 | lookup_struct (name, block) |
| 665 | char *name; |
| 666 | struct block *block; |
| 667 | { |
| 668 | register struct symbol *sym; |
| 669 | |
| 670 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
| 671 | (struct symtab **) NULL); |
| 672 | |
| 673 | if (sym == NULL) |
| 674 | { |
| 675 | error ("No struct type named %s.", name); |
| 676 | } |
| 677 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) |
| 678 | { |
| 679 | error ("This context has class, union or enum %s, not a struct.", name); |
| 680 | } |
| 681 | return (SYMBOL_TYPE (sym)); |
| 682 | } |
| 683 | |
| 684 | /* Lookup a union type named "union NAME", |
| 685 | visible in lexical block BLOCK. */ |
| 686 | |
| 687 | struct type * |
| 688 | lookup_union (name, block) |
| 689 | char *name; |
| 690 | struct block *block; |
| 691 | { |
| 692 | register struct symbol *sym; |
| 693 | |
| 694 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
| 695 | (struct symtab **) NULL); |
| 696 | |
| 697 | if (sym == NULL) |
| 698 | { |
| 699 | error ("No union type named %s.", name); |
| 700 | } |
| 701 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_UNION) |
| 702 | { |
| 703 | error ("This context has class, struct or enum %s, not a union.", name); |
| 704 | } |
| 705 | return (SYMBOL_TYPE (sym)); |
| 706 | } |
| 707 | |
| 708 | /* Lookup an enum type named "enum NAME", |
| 709 | visible in lexical block BLOCK. */ |
| 710 | |
| 711 | struct type * |
| 712 | lookup_enum (name, block) |
| 713 | char *name; |
| 714 | struct block *block; |
| 715 | { |
| 716 | register struct symbol *sym; |
| 717 | |
| 718 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
| 719 | (struct symtab **) NULL); |
| 720 | if (sym == NULL) |
| 721 | { |
| 722 | error ("No enum type named %s.", name); |
| 723 | } |
| 724 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) |
| 725 | { |
| 726 | error ("This context has class, struct or union %s, not an enum.", name); |
| 727 | } |
| 728 | return (SYMBOL_TYPE (sym)); |
| 729 | } |
| 730 | |
| 731 | /* Lookup a template type named "template NAME<TYPE>", |
| 732 | visible in lexical block BLOCK. */ |
| 733 | |
| 734 | struct type * |
| 735 | lookup_template_type (name, type, block) |
| 736 | char *name; |
| 737 | struct type *type; |
| 738 | struct block *block; |
| 739 | { |
| 740 | struct symbol *sym; |
| 741 | char *nam = (char*) alloca(strlen(name) + strlen(type->name) + 4); |
| 742 | strcpy (nam, name); |
| 743 | strcat (nam, "<"); |
| 744 | strcat (nam, type->name); |
| 745 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
| 746 | |
| 747 | sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **)NULL); |
| 748 | |
| 749 | if (sym == NULL) |
| 750 | { |
| 751 | error ("No template type named %s.", name); |
| 752 | } |
| 753 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) |
| 754 | { |
| 755 | error ("This context has class, union or enum %s, not a struct.", name); |
| 756 | } |
| 757 | return (SYMBOL_TYPE (sym)); |
| 758 | } |
| 759 | |
| 760 | /* Given a type TYPE, lookup the type of the component of type named NAME. |
| 761 | |
| 762 | TYPE can be either a struct or union, or a pointer or reference to a struct or |
| 763 | union. If it is a pointer or reference, its target type is automatically used. |
| 764 | Thus '.' and '->' are interchangable, as specified for the definitions of the |
| 765 | expression element types STRUCTOP_STRUCT and STRUCTOP_PTR. |
| 766 | |
| 767 | If NOERR is nonzero, return zero if NAME is not suitably defined. |
| 768 | If NAME is the name of a baseclass type, return that type. */ |
| 769 | |
| 770 | struct type * |
| 771 | lookup_struct_elt_type (type, name, noerr) |
| 772 | struct type *type; |
| 773 | char *name; |
| 774 | int noerr; |
| 775 | { |
| 776 | int i; |
| 777 | |
| 778 | for (;;) |
| 779 | { |
| 780 | CHECK_TYPEDEF (type); |
| 781 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
| 782 | && TYPE_CODE (type) != TYPE_CODE_REF) |
| 783 | break; |
| 784 | type = TYPE_TARGET_TYPE (type); |
| 785 | } |
| 786 | |
| 787 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT && |
| 788 | TYPE_CODE (type) != TYPE_CODE_UNION) |
| 789 | { |
| 790 | target_terminal_ours (); |
| 791 | gdb_flush (gdb_stdout); |
| 792 | fprintf_unfiltered (gdb_stderr, "Type "); |
| 793 | type_print (type, "", gdb_stderr, -1); |
| 794 | error (" is not a structure or union type."); |
| 795 | } |
| 796 | |
| 797 | #if 0 |
| 798 | /* FIXME: This change put in by Michael seems incorrect for the case where |
| 799 | the structure tag name is the same as the member name. I.E. when doing |
| 800 | "ptype bell->bar" for "struct foo { int bar; int foo; } bell;" |
| 801 | Disabled by fnf. */ |
| 802 | { |
| 803 | char *typename; |
| 804 | |
| 805 | typename = type_name_no_tag (type); |
| 806 | if (typename != NULL && STREQ (typename, name)) |
| 807 | return type; |
| 808 | } |
| 809 | #endif |
| 810 | |
| 811 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) |
| 812 | { |
| 813 | char *t_field_name = TYPE_FIELD_NAME (type, i); |
| 814 | |
| 815 | if (t_field_name && STREQ (t_field_name, name)) |
| 816 | { |
| 817 | return TYPE_FIELD_TYPE (type, i); |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | /* OK, it's not in this class. Recursively check the baseclasses. */ |
| 822 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) |
| 823 | { |
| 824 | struct type *t; |
| 825 | |
| 826 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr); |
| 827 | if (t != NULL) |
| 828 | { |
| 829 | return t; |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | if (noerr) |
| 834 | { |
| 835 | return NULL; |
| 836 | } |
| 837 | |
| 838 | target_terminal_ours (); |
| 839 | gdb_flush (gdb_stdout); |
| 840 | fprintf_unfiltered (gdb_stderr, "Type "); |
| 841 | type_print (type, "", gdb_stderr, -1); |
| 842 | fprintf_unfiltered (gdb_stderr, " has no component named "); |
| 843 | fputs_filtered (name, gdb_stderr); |
| 844 | error ("."); |
| 845 | return (struct type *)-1; /* For lint */ |
| 846 | } |
| 847 | |
| 848 | /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE |
| 849 | valid. Callers should be aware that in some cases (for example, |
| 850 | the type or one of its baseclasses is a stub type and we are |
| 851 | debugging a .o file), this function will not be able to find the virtual |
| 852 | function table pointer, and vptr_fieldno will remain -1 and vptr_basetype |
| 853 | will remain NULL. */ |
| 854 | |
| 855 | void |
| 856 | fill_in_vptr_fieldno (type) |
| 857 | struct type *type; |
| 858 | { |
| 859 | CHECK_TYPEDEF (type); |
| 860 | |
| 861 | if (TYPE_VPTR_FIELDNO (type) < 0) |
| 862 | { |
| 863 | int i; |
| 864 | |
| 865 | /* We must start at zero in case the first (and only) baseclass is |
| 866 | virtual (and hence we cannot share the table pointer). */ |
| 867 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
| 868 | { |
| 869 | fill_in_vptr_fieldno (TYPE_BASECLASS (type, i)); |
| 870 | if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0) |
| 871 | { |
| 872 | TYPE_VPTR_FIELDNO (type) |
| 873 | = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)); |
| 874 | TYPE_VPTR_BASETYPE (type) |
| 875 | = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i)); |
| 876 | break; |
| 877 | } |
| 878 | } |
| 879 | } |
| 880 | } |
| 881 | |
| 882 | /* Find the method and field indices for the destructor in class type T. |
| 883 | Return 1 if the destructor was found, otherwise, return 0. */ |
| 884 | |
| 885 | int |
| 886 | get_destructor_fn_field (t, method_indexp, field_indexp) |
| 887 | struct type *t; |
| 888 | int *method_indexp; |
| 889 | int *field_indexp; |
| 890 | { |
| 891 | int i; |
| 892 | |
| 893 | for (i = 0; i < TYPE_NFN_FIELDS (t); i++) |
| 894 | { |
| 895 | int j; |
| 896 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); |
| 897 | |
| 898 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) |
| 899 | { |
| 900 | if (DESTRUCTOR_PREFIX_P (TYPE_FN_FIELD_PHYSNAME (f, j))) |
| 901 | { |
| 902 | *method_indexp = i; |
| 903 | *field_indexp = j; |
| 904 | return 1; |
| 905 | } |
| 906 | } |
| 907 | } |
| 908 | return 0; |
| 909 | } |
| 910 | |
| 911 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
| 912 | |
| 913 | If this is a stubbed struct (i.e. declared as struct foo *), see if |
| 914 | we can find a full definition in some other file. If so, copy this |
| 915 | definition, so we can use it in future. There used to be a comment (but |
| 916 | not any code) that if we don't find a full definition, we'd set a flag |
| 917 | so we don't spend time in the future checking the same type. That would |
| 918 | be a mistake, though--we might load in more symbols which contain a |
| 919 | full definition for the type. |
| 920 | |
| 921 | This used to be coded as a macro, but I don't think it is called |
| 922 | often enough to merit such treatment. */ |
| 923 | |
| 924 | struct complaint stub_noname_complaint = |
| 925 | {"stub type has NULL name", 0, 0}; |
| 926 | |
| 927 | struct type * |
| 928 | check_typedef (type) |
| 929 | register struct type *type; |
| 930 | { |
| 931 | struct type *orig_type = type; |
| 932 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
| 933 | { |
| 934 | if (!TYPE_TARGET_TYPE (type)) |
| 935 | { |
| 936 | char* name; |
| 937 | struct symbol *sym; |
| 938 | |
| 939 | /* It is dangerous to call lookup_symbol if we are currently |
| 940 | reading a symtab. Infinite recursion is one danger. */ |
| 941 | if (currently_reading_symtab) |
| 942 | return type; |
| 943 | |
| 944 | name = type_name_no_tag (type); |
| 945 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
| 946 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE |
| 947 | as appropriate? (this code was written before TYPE_NAME and |
| 948 | TYPE_TAG_NAME were separate). */ |
| 949 | if (name == NULL) |
| 950 | { |
| 951 | complain (&stub_noname_complaint); |
| 952 | return type; |
| 953 | } |
| 954 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, |
| 955 | (struct symtab **) NULL); |
| 956 | if (sym) |
| 957 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); |
| 958 | else |
| 959 | TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */ |
| 960 | } |
| 961 | type = TYPE_TARGET_TYPE (type); |
| 962 | } |
| 963 | |
| 964 | if ((TYPE_FLAGS(type) & TYPE_FLAG_STUB) && ! currently_reading_symtab) |
| 965 | { |
| 966 | char* name = type_name_no_tag (type); |
| 967 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
| 968 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE |
| 969 | as appropriate? (this code was written before TYPE_NAME and |
| 970 | TYPE_TAG_NAME were separate). */ |
| 971 | struct symbol *sym; |
| 972 | if (name == NULL) |
| 973 | { |
| 974 | complain (&stub_noname_complaint); |
| 975 | return type; |
| 976 | } |
| 977 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, |
| 978 | (struct symtab **) NULL); |
| 979 | if (sym) |
| 980 | { |
| 981 | memcpy ((char *)type, |
| 982 | (char *)SYMBOL_TYPE(sym), |
| 983 | sizeof (struct type)); |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | if (TYPE_FLAGS (type) & TYPE_FLAG_TARGET_STUB) |
| 988 | { |
| 989 | struct type *range_type; |
| 990 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
| 991 | |
| 992 | if (TYPE_FLAGS (target_type) & (TYPE_FLAG_STUB | TYPE_FLAG_TARGET_STUB)) |
| 993 | { } |
| 994 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
| 995 | && TYPE_NFIELDS (type) == 1 |
| 996 | && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) |
| 997 | == TYPE_CODE_RANGE)) |
| 998 | { |
| 999 | /* Now recompute the length of the array type, based on its |
| 1000 | number of elements and the target type's length. */ |
| 1001 | TYPE_LENGTH (type) = |
| 1002 | ((TYPE_FIELD_BITPOS (range_type, 1) |
| 1003 | - TYPE_FIELD_BITPOS (range_type, 0) |
| 1004 | + 1) |
| 1005 | * TYPE_LENGTH (target_type)); |
| 1006 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; |
| 1007 | } |
| 1008 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
| 1009 | { |
| 1010 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); |
| 1011 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; |
| 1012 | } |
| 1013 | } |
| 1014 | /* Cache TYPE_LENGTH for future use. */ |
| 1015 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
| 1016 | return type; |
| 1017 | } |
| 1018 | |
| 1019 | /* New code added to support parsing of Cfront stabs strings */ |
| 1020 | #include <ctype.h> |
| 1021 | #define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; } |
| 1022 | #define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; } |
| 1023 | |
| 1024 | static void |
| 1025 | add_name(pextras,n) |
| 1026 | struct extra * pextras; |
| 1027 | char * n; |
| 1028 | { |
| 1029 | int nlen; |
| 1030 | |
| 1031 | if ((nlen = (n ? strlen(n) : 0))==0) |
| 1032 | return; |
| 1033 | sprintf(pextras->str+pextras->len,"%d%s",nlen,n); |
| 1034 | pextras->len=strlen(pextras->str); |
| 1035 | } |
| 1036 | |
| 1037 | static void |
| 1038 | add_mangled_type(pextras,t) |
| 1039 | struct extra * pextras; |
| 1040 | struct type * t; |
| 1041 | { |
| 1042 | enum type_code tcode; |
| 1043 | int tlen, tflags; |
| 1044 | char * tname; |
| 1045 | |
| 1046 | tcode = TYPE_CODE(t); |
| 1047 | tlen = TYPE_LENGTH(t); |
| 1048 | tflags = TYPE_FLAGS(t); |
| 1049 | tname = TYPE_NAME(t); |
| 1050 | /* args of "..." seem to get mangled as "e" */ |
| 1051 | |
| 1052 | switch (tcode) |
| 1053 | { |
| 1054 | case TYPE_CODE_INT: |
| 1055 | if (tflags==1) |
| 1056 | ADD_EXTRA('U'); |
| 1057 | switch (tlen) |
| 1058 | { |
| 1059 | case 1: |
| 1060 | ADD_EXTRA('c'); |
| 1061 | break; |
| 1062 | case 2: |
| 1063 | ADD_EXTRA('s'); |
| 1064 | break; |
| 1065 | case 4: |
| 1066 | { |
| 1067 | char* pname; |
| 1068 | if ((pname=strrchr(tname,'l'),pname) && !strcmp(pname,"long")) |
| 1069 | ADD_EXTRA('l') |
| 1070 | else |
| 1071 | ADD_EXTRA('i') |
| 1072 | } |
| 1073 | break; |
| 1074 | default: |
| 1075 | { |
| 1076 | |
| 1077 | static struct complaint msg = {"Bad int type code length x%x\n",0,0}; |
| 1078 | |
| 1079 | complain (&msg, tlen); |
| 1080 | |
| 1081 | } |
| 1082 | } |
| 1083 | break; |
| 1084 | case TYPE_CODE_FLT: |
| 1085 | switch (tlen) |
| 1086 | { |
| 1087 | case 4: |
| 1088 | ADD_EXTRA('f'); |
| 1089 | break; |
| 1090 | case 8: |
| 1091 | ADD_EXTRA('d'); |
| 1092 | break; |
| 1093 | case 16: |
| 1094 | ADD_EXTRA('r'); |
| 1095 | break; |
| 1096 | default: |
| 1097 | { |
| 1098 | static struct complaint msg = {"Bad float type code length x%x\n",0,0}; |
| 1099 | complain (&msg, tlen); |
| 1100 | } |
| 1101 | } |
| 1102 | break; |
| 1103 | case TYPE_CODE_REF: |
| 1104 | ADD_EXTRA('R'); |
| 1105 | /* followed by what it's a ref to */ |
| 1106 | break; |
| 1107 | case TYPE_CODE_PTR: |
| 1108 | ADD_EXTRA('P'); |
| 1109 | /* followed by what it's a ptr to */ |
| 1110 | break; |
| 1111 | case TYPE_CODE_TYPEDEF: |
| 1112 | { |
| 1113 | static struct complaint msg = {"Typedefs in overloaded functions not yet supported\n",0,0}; |
| 1114 | complain (&msg); |
| 1115 | } |
| 1116 | /* followed by type bytes & name */ |
| 1117 | break; |
| 1118 | case TYPE_CODE_FUNC: |
| 1119 | ADD_EXTRA('F'); |
| 1120 | /* followed by func's arg '_' & ret types */ |
| 1121 | break; |
| 1122 | case TYPE_CODE_VOID: |
| 1123 | ADD_EXTRA('v'); |
| 1124 | break; |
| 1125 | case TYPE_CODE_METHOD: |
| 1126 | ADD_EXTRA('M'); |
| 1127 | /* followed by name of class and func's arg '_' & ret types */ |
| 1128 | add_name(pextras,tname); |
| 1129 | ADD_EXTRA('F'); /* then mangle function */ |
| 1130 | break; |
| 1131 | case TYPE_CODE_STRUCT: /* C struct */ |
| 1132 | case TYPE_CODE_UNION: /* C union */ |
| 1133 | case TYPE_CODE_ENUM: /* Enumeration type */ |
| 1134 | /* followed by name of type */ |
| 1135 | add_name(pextras,tname); |
| 1136 | break; |
| 1137 | |
| 1138 | /* errors possible types/not supported */ |
| 1139 | case TYPE_CODE_CHAR: |
| 1140 | case TYPE_CODE_ARRAY: /* Array type */ |
| 1141 | case TYPE_CODE_MEMBER: /* Member type */ |
| 1142 | case TYPE_CODE_BOOL: |
| 1143 | case TYPE_CODE_COMPLEX: /* Complex float */ |
| 1144 | case TYPE_CODE_UNDEF: |
| 1145 | case TYPE_CODE_SET: /* Pascal sets */ |
| 1146 | case TYPE_CODE_RANGE: |
| 1147 | case TYPE_CODE_STRING: |
| 1148 | case TYPE_CODE_BITSTRING: |
| 1149 | case TYPE_CODE_ERROR: |
| 1150 | default: |
| 1151 | { |
| 1152 | static struct complaint msg = {"Unknown type code x%x\n",0,0}; |
| 1153 | complain (&msg, tcode); |
| 1154 | } |
| 1155 | } |
| 1156 | if (t->target_type) |
| 1157 | add_mangled_type(pextras,t->target_type); |
| 1158 | } |
| 1159 | |
| 1160 | #if 0 |
| 1161 | void |
| 1162 | cfront_mangle_name(type, i, j) |
| 1163 | struct type *type; |
| 1164 | int i; |
| 1165 | int j; |
| 1166 | { |
| 1167 | struct fn_field *f; |
| 1168 | char *mangled_name = gdb_mangle_name (type, i, j); |
| 1169 | |
| 1170 | f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */ |
| 1171 | |
| 1172 | /* kludge to support cfront methods - gdb expects to find "F" for |
| 1173 | ARM_mangled names, so when we mangle, we have to add it here */ |
| 1174 | if (ARM_DEMANGLING) |
| 1175 | { |
| 1176 | int k; |
| 1177 | char * arm_mangled_name; |
| 1178 | struct fn_field *method = &f[j]; |
| 1179 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); |
| 1180 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); |
| 1181 | char *newname = type_name_no_tag (type); |
| 1182 | |
| 1183 | struct type *ftype = TYPE_FN_FIELD_TYPE (f, j); |
| 1184 | int nargs = TYPE_NFIELDS(ftype); /* number of args */ |
| 1185 | struct extra extras, * pextras = &extras; |
| 1186 | INIT_EXTRA |
| 1187 | |
| 1188 | if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */ |
| 1189 | ADD_EXTRA('S') |
| 1190 | ADD_EXTRA('F') |
| 1191 | /* add args here! */ |
| 1192 | if (nargs <= 1) /* no args besides this */ |
| 1193 | ADD_EXTRA('v') |
| 1194 | else { |
| 1195 | for (k=1; k<nargs; k++) |
| 1196 | { |
| 1197 | struct type * t; |
| 1198 | t = TYPE_FIELD_TYPE(ftype,k); |
| 1199 | add_mangled_type(pextras,t); |
| 1200 | } |
| 1201 | } |
| 1202 | ADD_EXTRA('\0') |
| 1203 | printf("add_mangled_type: %s\n",extras.str); /* FIXME */ |
| 1204 | arm_mangled_name = malloc(strlen(mangled_name)+extras.len); |
| 1205 | sprintf(arm_mangled_name,"%s%s",mangled_name,extras.str); |
| 1206 | free(mangled_name); |
| 1207 | mangled_name = arm_mangled_name; |
| 1208 | } |
| 1209 | } |
| 1210 | #endif /* 0 */ |
| 1211 | |
| 1212 | #undef ADD_EXTRA |
| 1213 | /* End of new code added to support parsing of Cfront stabs strings */ |
| 1214 | |
| 1215 | /* Ugly hack to convert method stubs into method types. |
| 1216 | |
| 1217 | He ain't kiddin'. This demangles the name of the method into a string |
| 1218 | including argument types, parses out each argument type, generates |
| 1219 | a string casting a zero to that type, evaluates the string, and stuffs |
| 1220 | the resulting type into an argtype vector!!! Then it knows the type |
| 1221 | of the whole function (including argument types for overloading), |
| 1222 | which info used to be in the stab's but was removed to hack back |
| 1223 | the space required for them. */ |
| 1224 | |
| 1225 | void |
| 1226 | check_stub_method (type, i, j) |
| 1227 | struct type *type; |
| 1228 | int i; |
| 1229 | int j; |
| 1230 | { |
| 1231 | struct fn_field *f; |
| 1232 | char *mangled_name = gdb_mangle_name (type, i, j); |
| 1233 | char *demangled_name = cplus_demangle (mangled_name, |
| 1234 | DMGL_PARAMS | DMGL_ANSI); |
| 1235 | char *argtypetext, *p; |
| 1236 | int depth = 0, argcount = 1; |
| 1237 | struct type **argtypes; |
| 1238 | struct type *mtype; |
| 1239 | |
| 1240 | /* Make sure we got back a function string that we can use. */ |
| 1241 | if (demangled_name) |
| 1242 | p = strchr (demangled_name, '('); |
| 1243 | |
| 1244 | if (demangled_name == NULL || p == NULL) |
| 1245 | error ("Internal: Cannot demangle mangled name `%s'.", mangled_name); |
| 1246 | |
| 1247 | /* Now, read in the parameters that define this type. */ |
| 1248 | p += 1; |
| 1249 | argtypetext = p; |
| 1250 | while (*p) |
| 1251 | { |
| 1252 | if (*p == '(') |
| 1253 | { |
| 1254 | depth += 1; |
| 1255 | } |
| 1256 | else if (*p == ')') |
| 1257 | { |
| 1258 | depth -= 1; |
| 1259 | } |
| 1260 | else if (*p == ',' && depth == 0) |
| 1261 | { |
| 1262 | argcount += 1; |
| 1263 | } |
| 1264 | |
| 1265 | p += 1; |
| 1266 | } |
| 1267 | |
| 1268 | /* We need two more slots: one for the THIS pointer, and one for the |
| 1269 | NULL [...] or void [end of arglist]. */ |
| 1270 | |
| 1271 | argtypes = (struct type **) |
| 1272 | TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *)); |
| 1273 | p = argtypetext; |
| 1274 | /* FIXME: This is wrong for static member functions. */ |
| 1275 | argtypes[0] = lookup_pointer_type (type); |
| 1276 | argcount = 1; |
| 1277 | |
| 1278 | if (*p != ')') /* () means no args, skip while */ |
| 1279 | { |
| 1280 | depth = 0; |
| 1281 | while (*p) |
| 1282 | { |
| 1283 | if (depth <= 0 && (*p == ',' || *p == ')')) |
| 1284 | { |
| 1285 | /* Avoid parsing of ellipsis, they will be handled below. */ |
| 1286 | if (strncmp (argtypetext, "...", p - argtypetext) != 0) |
| 1287 | { |
| 1288 | argtypes[argcount] = |
| 1289 | parse_and_eval_type (argtypetext, p - argtypetext); |
| 1290 | argcount += 1; |
| 1291 | } |
| 1292 | argtypetext = p + 1; |
| 1293 | } |
| 1294 | |
| 1295 | if (*p == '(') |
| 1296 | { |
| 1297 | depth += 1; |
| 1298 | } |
| 1299 | else if (*p == ')') |
| 1300 | { |
| 1301 | depth -= 1; |
| 1302 | } |
| 1303 | |
| 1304 | p += 1; |
| 1305 | } |
| 1306 | } |
| 1307 | |
| 1308 | if (p[-2] != '.') /* Not '...' */ |
| 1309 | { |
| 1310 | argtypes[argcount] = builtin_type_void; /* List terminator */ |
| 1311 | } |
| 1312 | else |
| 1313 | { |
| 1314 | argtypes[argcount] = NULL; /* Ellist terminator */ |
| 1315 | } |
| 1316 | |
| 1317 | free (demangled_name); |
| 1318 | |
| 1319 | f = TYPE_FN_FIELDLIST1 (type, i); |
| 1320 | |
| 1321 | TYPE_FN_FIELD_PHYSNAME (f, j) = mangled_name; |
| 1322 | |
| 1323 | /* Now update the old "stub" type into a real type. */ |
| 1324 | mtype = TYPE_FN_FIELD_TYPE (f, j); |
| 1325 | TYPE_DOMAIN_TYPE (mtype) = type; |
| 1326 | TYPE_ARG_TYPES (mtype) = argtypes; |
| 1327 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; |
| 1328 | TYPE_FN_FIELD_STUB (f, j) = 0; |
| 1329 | } |
| 1330 | |
| 1331 | const struct cplus_struct_type cplus_struct_default; |
| 1332 | |
| 1333 | void |
| 1334 | allocate_cplus_struct_type (type) |
| 1335 | struct type *type; |
| 1336 | { |
| 1337 | if (!HAVE_CPLUS_STRUCT (type)) |
| 1338 | { |
| 1339 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) |
| 1340 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); |
| 1341 | *(TYPE_CPLUS_SPECIFIC(type)) = cplus_struct_default; |
| 1342 | } |
| 1343 | } |
| 1344 | |
| 1345 | /* Helper function to initialize the standard scalar types. |
| 1346 | |
| 1347 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy |
| 1348 | of the string pointed to by name in the type_obstack for that objfile, |
| 1349 | and initialize the type name to that copy. There are places (mipsread.c |
| 1350 | in particular, where init_type is called with a NULL value for NAME). */ |
| 1351 | |
| 1352 | struct type * |
| 1353 | init_type (code, length, flags, name, objfile) |
| 1354 | enum type_code code; |
| 1355 | int length; |
| 1356 | int flags; |
| 1357 | char *name; |
| 1358 | struct objfile *objfile; |
| 1359 | { |
| 1360 | register struct type *type; |
| 1361 | |
| 1362 | type = alloc_type (objfile); |
| 1363 | TYPE_CODE (type) = code; |
| 1364 | TYPE_LENGTH (type) = length; |
| 1365 | TYPE_FLAGS (type) |= flags; |
| 1366 | if ((name != NULL) && (objfile != NULL)) |
| 1367 | { |
| 1368 | TYPE_NAME (type) = |
| 1369 | obsavestring (name, strlen (name), &objfile -> type_obstack); |
| 1370 | } |
| 1371 | else |
| 1372 | { |
| 1373 | TYPE_NAME (type) = name; |
| 1374 | } |
| 1375 | |
| 1376 | /* C++ fancies. */ |
| 1377 | |
| 1378 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION) |
| 1379 | { |
| 1380 | INIT_CPLUS_SPECIFIC (type); |
| 1381 | } |
| 1382 | return (type); |
| 1383 | } |
| 1384 | |
| 1385 | /* Look up a fundamental type for the specified objfile. |
| 1386 | May need to construct such a type if this is the first use. |
| 1387 | |
| 1388 | Some object file formats (ELF, COFF, etc) do not define fundamental |
| 1389 | types such as "int" or "double". Others (stabs for example), do |
| 1390 | define fundamental types. |
| 1391 | |
| 1392 | For the formats which don't provide fundamental types, gdb can create |
| 1393 | such types, using defaults reasonable for the current language and |
| 1394 | the current target machine. |
| 1395 | |
| 1396 | NOTE: This routine is obsolescent. Each debugging format reader |
| 1397 | should manage it's own fundamental types, either creating them from |
| 1398 | suitable defaults or reading them from the debugging information, |
| 1399 | whichever is appropriate. The DWARF reader has already been |
| 1400 | fixed to do this. Once the other readers are fixed, this routine |
| 1401 | will go away. Also note that fundamental types should be managed |
| 1402 | on a compilation unit basis in a multi-language environment, not |
| 1403 | on a linkage unit basis as is done here. */ |
| 1404 | |
| 1405 | |
| 1406 | struct type * |
| 1407 | lookup_fundamental_type (objfile, typeid) |
| 1408 | struct objfile *objfile; |
| 1409 | int typeid; |
| 1410 | { |
| 1411 | register struct type **typep; |
| 1412 | register int nbytes; |
| 1413 | |
| 1414 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) |
| 1415 | { |
| 1416 | error ("internal error - invalid fundamental type id %d", typeid); |
| 1417 | } |
| 1418 | |
| 1419 | /* If this is the first time we need a fundamental type for this objfile |
| 1420 | then we need to initialize the vector of type pointers. */ |
| 1421 | |
| 1422 | if (objfile -> fundamental_types == NULL) |
| 1423 | { |
| 1424 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); |
| 1425 | objfile -> fundamental_types = (struct type **) |
| 1426 | obstack_alloc (&objfile -> type_obstack, nbytes); |
| 1427 | memset ((char *) objfile -> fundamental_types, 0, nbytes); |
| 1428 | OBJSTAT (objfile, n_types += FT_NUM_MEMBERS); |
| 1429 | } |
| 1430 | |
| 1431 | /* Look for this particular type in the fundamental type vector. If one is |
| 1432 | not found, create and install one appropriate for the current language. */ |
| 1433 | |
| 1434 | typep = objfile -> fundamental_types + typeid; |
| 1435 | if (*typep == NULL) |
| 1436 | { |
| 1437 | *typep = create_fundamental_type (objfile, typeid); |
| 1438 | } |
| 1439 | |
| 1440 | return (*typep); |
| 1441 | } |
| 1442 | |
| 1443 | int |
| 1444 | can_dereference (t) |
| 1445 | struct type *t; |
| 1446 | { |
| 1447 | /* FIXME: Should we return true for references as well as pointers? */ |
| 1448 | CHECK_TYPEDEF (t); |
| 1449 | return |
| 1450 | (t != NULL |
| 1451 | && TYPE_CODE (t) == TYPE_CODE_PTR |
| 1452 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); |
| 1453 | } |
| 1454 | |
| 1455 | /* Chill varying string and arrays are represented as follows: |
| 1456 | |
| 1457 | struct { int __var_length; ELEMENT_TYPE[MAX_SIZE] __var_data}; |
| 1458 | |
| 1459 | Return true if TYPE is such a Chill varying type. */ |
| 1460 | |
| 1461 | int |
| 1462 | chill_varying_type (type) |
| 1463 | struct type *type; |
| 1464 | { |
| 1465 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
| 1466 | || TYPE_NFIELDS (type) != 2 |
| 1467 | || strcmp (TYPE_FIELD_NAME (type, 0), "__var_length") != 0) |
| 1468 | return 0; |
| 1469 | return 1; |
| 1470 | } |
| 1471 | |
| 1472 | #if MAINTENANCE_CMDS |
| 1473 | |
| 1474 | static void |
| 1475 | print_bit_vector (bits, nbits) |
| 1476 | B_TYPE *bits; |
| 1477 | int nbits; |
| 1478 | { |
| 1479 | int bitno; |
| 1480 | |
| 1481 | for (bitno = 0; bitno < nbits; bitno++) |
| 1482 | { |
| 1483 | if ((bitno % 8) == 0) |
| 1484 | { |
| 1485 | puts_filtered (" "); |
| 1486 | } |
| 1487 | if (B_TST (bits, bitno)) |
| 1488 | { |
| 1489 | printf_filtered ("1"); |
| 1490 | } |
| 1491 | else |
| 1492 | { |
| 1493 | printf_filtered ("0"); |
| 1494 | } |
| 1495 | } |
| 1496 | } |
| 1497 | |
| 1498 | /* The args list is a strange beast. It is either terminated by a NULL |
| 1499 | pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID |
| 1500 | type for normal fixed argcount functions. (FIXME someday) |
| 1501 | Also note the first arg should be the "this" pointer, we may not want to |
| 1502 | include it since we may get into a infinitely recursive situation. */ |
| 1503 | |
| 1504 | static void |
| 1505 | print_arg_types (args, spaces) |
| 1506 | struct type **args; |
| 1507 | int spaces; |
| 1508 | { |
| 1509 | if (args != NULL) |
| 1510 | { |
| 1511 | while (*args != NULL) |
| 1512 | { |
| 1513 | recursive_dump_type (*args, spaces + 2); |
| 1514 | if ((*args++) -> code == TYPE_CODE_VOID) |
| 1515 | { |
| 1516 | break; |
| 1517 | } |
| 1518 | } |
| 1519 | } |
| 1520 | } |
| 1521 | |
| 1522 | static void |
| 1523 | dump_fn_fieldlists (type, spaces) |
| 1524 | struct type *type; |
| 1525 | int spaces; |
| 1526 | { |
| 1527 | int method_idx; |
| 1528 | int overload_idx; |
| 1529 | struct fn_field *f; |
| 1530 | |
| 1531 | printfi_filtered (spaces, "fn_fieldlists "); |
| 1532 | gdb_print_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
| 1533 | printf_filtered ("\n"); |
| 1534 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) |
| 1535 | { |
| 1536 | f = TYPE_FN_FIELDLIST1 (type, method_idx); |
| 1537 | printfi_filtered (spaces + 2, "[%d] name '%s' (", |
| 1538 | method_idx, |
| 1539 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); |
| 1540 | gdb_print_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
| 1541 | gdb_stdout); |
| 1542 | printf_filtered (") length %d\n", |
| 1543 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
| 1544 | for (overload_idx = 0; |
| 1545 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); |
| 1546 | overload_idx++) |
| 1547 | { |
| 1548 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", |
| 1549 | overload_idx, |
| 1550 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); |
| 1551 | gdb_print_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
| 1552 | gdb_stdout); |
| 1553 | printf_filtered (")\n"); |
| 1554 | printfi_filtered (spaces + 8, "type "); |
| 1555 | gdb_print_address (TYPE_FN_FIELD_TYPE (f, overload_idx), gdb_stdout); |
| 1556 | printf_filtered ("\n"); |
| 1557 | |
| 1558 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), |
| 1559 | spaces + 8 + 2); |
| 1560 | |
| 1561 | printfi_filtered (spaces + 8, "args "); |
| 1562 | gdb_print_address (TYPE_FN_FIELD_ARGS (f, overload_idx), gdb_stdout); |
| 1563 | printf_filtered ("\n"); |
| 1564 | |
| 1565 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces); |
| 1566 | printfi_filtered (spaces + 8, "fcontext "); |
| 1567 | gdb_print_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
| 1568 | gdb_stdout); |
| 1569 | printf_filtered ("\n"); |
| 1570 | |
| 1571 | printfi_filtered (spaces + 8, "is_const %d\n", |
| 1572 | TYPE_FN_FIELD_CONST (f, overload_idx)); |
| 1573 | printfi_filtered (spaces + 8, "is_volatile %d\n", |
| 1574 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); |
| 1575 | printfi_filtered (spaces + 8, "is_private %d\n", |
| 1576 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); |
| 1577 | printfi_filtered (spaces + 8, "is_protected %d\n", |
| 1578 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); |
| 1579 | printfi_filtered (spaces + 8, "is_stub %d\n", |
| 1580 | TYPE_FN_FIELD_STUB (f, overload_idx)); |
| 1581 | printfi_filtered (spaces + 8, "voffset %u\n", |
| 1582 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); |
| 1583 | } |
| 1584 | } |
| 1585 | } |
| 1586 | |
| 1587 | static void |
| 1588 | print_cplus_stuff (type, spaces) |
| 1589 | struct type *type; |
| 1590 | int spaces; |
| 1591 | { |
| 1592 | printfi_filtered (spaces, "n_baseclasses %d\n", |
| 1593 | TYPE_N_BASECLASSES (type)); |
| 1594 | printfi_filtered (spaces, "nfn_fields %d\n", |
| 1595 | TYPE_NFN_FIELDS (type)); |
| 1596 | printfi_filtered (spaces, "nfn_fields_total %d\n", |
| 1597 | TYPE_NFN_FIELDS_TOTAL (type)); |
| 1598 | if (TYPE_N_BASECLASSES (type) > 0) |
| 1599 | { |
| 1600 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", |
| 1601 | TYPE_N_BASECLASSES (type)); |
| 1602 | gdb_print_address (TYPE_FIELD_VIRTUAL_BITS (type), gdb_stdout); |
| 1603 | printf_filtered (")"); |
| 1604 | |
| 1605 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), |
| 1606 | TYPE_N_BASECLASSES (type)); |
| 1607 | puts_filtered ("\n"); |
| 1608 | } |
| 1609 | if (TYPE_NFIELDS (type) > 0) |
| 1610 | { |
| 1611 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) |
| 1612 | { |
| 1613 | printfi_filtered (spaces, "private_field_bits (%d bits at *", |
| 1614 | TYPE_NFIELDS (type)); |
| 1615 | gdb_print_address (TYPE_FIELD_PRIVATE_BITS (type), gdb_stdout); |
| 1616 | printf_filtered (")"); |
| 1617 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), |
| 1618 | TYPE_NFIELDS (type)); |
| 1619 | puts_filtered ("\n"); |
| 1620 | } |
| 1621 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) |
| 1622 | { |
| 1623 | printfi_filtered (spaces, "protected_field_bits (%d bits at *", |
| 1624 | TYPE_NFIELDS (type)); |
| 1625 | gdb_print_address (TYPE_FIELD_PROTECTED_BITS (type), gdb_stdout); |
| 1626 | printf_filtered (")"); |
| 1627 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), |
| 1628 | TYPE_NFIELDS (type)); |
| 1629 | puts_filtered ("\n"); |
| 1630 | } |
| 1631 | } |
| 1632 | if (TYPE_NFN_FIELDS (type) > 0) |
| 1633 | { |
| 1634 | dump_fn_fieldlists (type, spaces); |
| 1635 | } |
| 1636 | } |
| 1637 | |
| 1638 | static struct obstack dont_print_type_obstack; |
| 1639 | |
| 1640 | void |
| 1641 | recursive_dump_type (type, spaces) |
| 1642 | struct type *type; |
| 1643 | int spaces; |
| 1644 | { |
| 1645 | int idx; |
| 1646 | |
| 1647 | if (spaces == 0) |
| 1648 | obstack_begin (&dont_print_type_obstack, 0); |
| 1649 | |
| 1650 | if (TYPE_NFIELDS (type) > 0 |
| 1651 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) |
| 1652 | { |
| 1653 | struct type **first_dont_print |
| 1654 | = (struct type **)obstack_base (&dont_print_type_obstack); |
| 1655 | |
| 1656 | int i = (struct type **)obstack_next_free (&dont_print_type_obstack) |
| 1657 | - first_dont_print; |
| 1658 | |
| 1659 | while (--i >= 0) |
| 1660 | { |
| 1661 | if (type == first_dont_print[i]) |
| 1662 | { |
| 1663 | printfi_filtered (spaces, "type node "); |
| 1664 | gdb_print_address (type, gdb_stdout); |
| 1665 | printf_filtered (" <same as already seen type>\n"); |
| 1666 | return; |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | obstack_ptr_grow (&dont_print_type_obstack, type); |
| 1671 | } |
| 1672 | |
| 1673 | printfi_filtered (spaces, "type node "); |
| 1674 | gdb_print_address (type, gdb_stdout); |
| 1675 | printf_filtered ("\n"); |
| 1676 | printfi_filtered (spaces, "name '%s' (", |
| 1677 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); |
| 1678 | gdb_print_address (TYPE_NAME (type), gdb_stdout); |
| 1679 | printf_filtered (")\n"); |
| 1680 | if (TYPE_TAG_NAME (type) != NULL) |
| 1681 | { |
| 1682 | printfi_filtered (spaces, "tagname '%s' (", |
| 1683 | TYPE_TAG_NAME (type)); |
| 1684 | gdb_print_address (TYPE_TAG_NAME (type), gdb_stdout); |
| 1685 | printf_filtered (")\n"); |
| 1686 | } |
| 1687 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
| 1688 | switch (TYPE_CODE (type)) |
| 1689 | { |
| 1690 | case TYPE_CODE_UNDEF: |
| 1691 | printf_filtered ("(TYPE_CODE_UNDEF)"); |
| 1692 | break; |
| 1693 | case TYPE_CODE_PTR: |
| 1694 | printf_filtered ("(TYPE_CODE_PTR)"); |
| 1695 | break; |
| 1696 | case TYPE_CODE_ARRAY: |
| 1697 | printf_filtered ("(TYPE_CODE_ARRAY)"); |
| 1698 | break; |
| 1699 | case TYPE_CODE_STRUCT: |
| 1700 | printf_filtered ("(TYPE_CODE_STRUCT)"); |
| 1701 | break; |
| 1702 | case TYPE_CODE_UNION: |
| 1703 | printf_filtered ("(TYPE_CODE_UNION)"); |
| 1704 | break; |
| 1705 | case TYPE_CODE_ENUM: |
| 1706 | printf_filtered ("(TYPE_CODE_ENUM)"); |
| 1707 | break; |
| 1708 | case TYPE_CODE_FUNC: |
| 1709 | printf_filtered ("(TYPE_CODE_FUNC)"); |
| 1710 | break; |
| 1711 | case TYPE_CODE_INT: |
| 1712 | printf_filtered ("(TYPE_CODE_INT)"); |
| 1713 | break; |
| 1714 | case TYPE_CODE_FLT: |
| 1715 | printf_filtered ("(TYPE_CODE_FLT)"); |
| 1716 | break; |
| 1717 | case TYPE_CODE_VOID: |
| 1718 | printf_filtered ("(TYPE_CODE_VOID)"); |
| 1719 | break; |
| 1720 | case TYPE_CODE_SET: |
| 1721 | printf_filtered ("(TYPE_CODE_SET)"); |
| 1722 | break; |
| 1723 | case TYPE_CODE_RANGE: |
| 1724 | printf_filtered ("(TYPE_CODE_RANGE)"); |
| 1725 | break; |
| 1726 | case TYPE_CODE_STRING: |
| 1727 | printf_filtered ("(TYPE_CODE_STRING)"); |
| 1728 | break; |
| 1729 | case TYPE_CODE_ERROR: |
| 1730 | printf_filtered ("(TYPE_CODE_ERROR)"); |
| 1731 | break; |
| 1732 | case TYPE_CODE_MEMBER: |
| 1733 | printf_filtered ("(TYPE_CODE_MEMBER)"); |
| 1734 | break; |
| 1735 | case TYPE_CODE_METHOD: |
| 1736 | printf_filtered ("(TYPE_CODE_METHOD)"); |
| 1737 | break; |
| 1738 | case TYPE_CODE_REF: |
| 1739 | printf_filtered ("(TYPE_CODE_REF)"); |
| 1740 | break; |
| 1741 | case TYPE_CODE_CHAR: |
| 1742 | printf_filtered ("(TYPE_CODE_CHAR)"); |
| 1743 | break; |
| 1744 | case TYPE_CODE_BOOL: |
| 1745 | printf_filtered ("(TYPE_CODE_BOOL)"); |
| 1746 | break; |
| 1747 | case TYPE_CODE_TYPEDEF: |
| 1748 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); |
| 1749 | break; |
| 1750 | default: |
| 1751 | printf_filtered ("(UNKNOWN TYPE CODE)"); |
| 1752 | break; |
| 1753 | } |
| 1754 | puts_filtered ("\n"); |
| 1755 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); |
| 1756 | printfi_filtered (spaces, "objfile "); |
| 1757 | gdb_print_address (TYPE_OBJFILE (type), gdb_stdout); |
| 1758 | printf_filtered ("\n"); |
| 1759 | printfi_filtered (spaces, "target_type "); |
| 1760 | gdb_print_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
| 1761 | printf_filtered ("\n"); |
| 1762 | if (TYPE_TARGET_TYPE (type) != NULL) |
| 1763 | { |
| 1764 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); |
| 1765 | } |
| 1766 | printfi_filtered (spaces, "pointer_type "); |
| 1767 | gdb_print_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
| 1768 | printf_filtered ("\n"); |
| 1769 | printfi_filtered (spaces, "reference_type "); |
| 1770 | gdb_print_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
| 1771 | printf_filtered ("\n"); |
| 1772 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); |
| 1773 | if (TYPE_FLAGS (type) & TYPE_FLAG_UNSIGNED) |
| 1774 | { |
| 1775 | puts_filtered (" TYPE_FLAG_UNSIGNED"); |
| 1776 | } |
| 1777 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) |
| 1778 | { |
| 1779 | puts_filtered (" TYPE_FLAG_STUB"); |
| 1780 | } |
| 1781 | puts_filtered ("\n"); |
| 1782 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); |
| 1783 | gdb_print_address (TYPE_FIELDS (type), gdb_stdout); |
| 1784 | puts_filtered ("\n"); |
| 1785 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) |
| 1786 | { |
| 1787 | printfi_filtered (spaces + 2, |
| 1788 | "[%d] bitpos %d bitsize %d type ", |
| 1789 | idx, TYPE_FIELD_BITPOS (type, idx), |
| 1790 | TYPE_FIELD_BITSIZE (type, idx)); |
| 1791 | gdb_print_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
| 1792 | printf_filtered (" name '%s' (", |
| 1793 | TYPE_FIELD_NAME (type, idx) != NULL |
| 1794 | ? TYPE_FIELD_NAME (type, idx) |
| 1795 | : "<NULL>"); |
| 1796 | gdb_print_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
| 1797 | printf_filtered (")\n"); |
| 1798 | if (TYPE_FIELD_TYPE (type, idx) != NULL) |
| 1799 | { |
| 1800 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); |
| 1801 | } |
| 1802 | } |
| 1803 | printfi_filtered (spaces, "vptr_basetype "); |
| 1804 | gdb_print_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
| 1805 | puts_filtered ("\n"); |
| 1806 | if (TYPE_VPTR_BASETYPE (type) != NULL) |
| 1807 | { |
| 1808 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); |
| 1809 | } |
| 1810 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
| 1811 | switch (TYPE_CODE (type)) |
| 1812 | { |
| 1813 | case TYPE_CODE_METHOD: |
| 1814 | case TYPE_CODE_FUNC: |
| 1815 | printfi_filtered (spaces, "arg_types "); |
| 1816 | gdb_print_address (TYPE_ARG_TYPES (type), gdb_stdout); |
| 1817 | puts_filtered ("\n"); |
| 1818 | print_arg_types (TYPE_ARG_TYPES (type), spaces); |
| 1819 | break; |
| 1820 | |
| 1821 | case TYPE_CODE_STRUCT: |
| 1822 | printfi_filtered (spaces, "cplus_stuff "); |
| 1823 | gdb_print_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
| 1824 | puts_filtered ("\n"); |
| 1825 | print_cplus_stuff (type, spaces); |
| 1826 | break; |
| 1827 | |
| 1828 | default: |
| 1829 | /* We have to pick one of the union types to be able print and test |
| 1830 | the value. Pick cplus_struct_type, even though we know it isn't |
| 1831 | any particular one. */ |
| 1832 | printfi_filtered (spaces, "type_specific "); |
| 1833 | gdb_print_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
| 1834 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
| 1835 | { |
| 1836 | printf_filtered (" (unknown data form)"); |
| 1837 | } |
| 1838 | printf_filtered ("\n"); |
| 1839 | break; |
| 1840 | |
| 1841 | } |
| 1842 | if (spaces == 0) |
| 1843 | obstack_free (&dont_print_type_obstack, NULL); |
| 1844 | } |
| 1845 | |
| 1846 | #endif /* MAINTENANCE_CMDS */ |
| 1847 | |
| 1848 | void |
| 1849 | _initialize_gdbtypes () |
| 1850 | { |
| 1851 | builtin_type_void = |
| 1852 | init_type (TYPE_CODE_VOID, 1, |
| 1853 | 0, |
| 1854 | "void", (struct objfile *) NULL); |
| 1855 | builtin_type_char = |
| 1856 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 1857 | 0, |
| 1858 | "char", (struct objfile *) NULL); |
| 1859 | builtin_type_signed_char = |
| 1860 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 1861 | 0, |
| 1862 | "signed char", (struct objfile *) NULL); |
| 1863 | builtin_type_unsigned_char = |
| 1864 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 1865 | TYPE_FLAG_UNSIGNED, |
| 1866 | "unsigned char", (struct objfile *) NULL); |
| 1867 | builtin_type_short = |
| 1868 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, |
| 1869 | 0, |
| 1870 | "short", (struct objfile *) NULL); |
| 1871 | builtin_type_unsigned_short = |
| 1872 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, |
| 1873 | TYPE_FLAG_UNSIGNED, |
| 1874 | "unsigned short", (struct objfile *) NULL); |
| 1875 | builtin_type_int = |
| 1876 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 1877 | 0, |
| 1878 | "int", (struct objfile *) NULL); |
| 1879 | builtin_type_unsigned_int = |
| 1880 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, |
| 1881 | TYPE_FLAG_UNSIGNED, |
| 1882 | "unsigned int", (struct objfile *) NULL); |
| 1883 | builtin_type_long = |
| 1884 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 1885 | 0, |
| 1886 | "long", (struct objfile *) NULL); |
| 1887 | builtin_type_unsigned_long = |
| 1888 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, |
| 1889 | TYPE_FLAG_UNSIGNED, |
| 1890 | "unsigned long", (struct objfile *) NULL); |
| 1891 | builtin_type_long_long = |
| 1892 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
| 1893 | 0, |
| 1894 | "long long", (struct objfile *) NULL); |
| 1895 | builtin_type_unsigned_long_long = |
| 1896 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
| 1897 | TYPE_FLAG_UNSIGNED, |
| 1898 | "unsigned long long", (struct objfile *) NULL); |
| 1899 | builtin_type_float = |
| 1900 | init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, |
| 1901 | 0, |
| 1902 | "float", (struct objfile *) NULL); |
| 1903 | builtin_type_double = |
| 1904 | init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 1905 | 0, |
| 1906 | "double", (struct objfile *) NULL); |
| 1907 | builtin_type_long_double = |
| 1908 | init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 1909 | 0, |
| 1910 | "long double", (struct objfile *) NULL); |
| 1911 | builtin_type_complex = |
| 1912 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, |
| 1913 | 0, |
| 1914 | "complex", (struct objfile *) NULL); |
| 1915 | TYPE_TARGET_TYPE (builtin_type_complex) = builtin_type_float; |
| 1916 | builtin_type_double_complex = |
| 1917 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, |
| 1918 | 0, |
| 1919 | "double complex", (struct objfile *) NULL); |
| 1920 | TYPE_TARGET_TYPE (builtin_type_double_complex) = builtin_type_double; |
| 1921 | builtin_type_string = |
| 1922 | init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 1923 | 0, |
| 1924 | "string", (struct objfile *) NULL); |
| 1925 | } |