1 /* Internal type definitions for GDB. 2 3 Copyright (C) 1992-2004, 2006-2012 Free Software Foundation, Inc. 4 5 Contributed by Cygnus Support, using pieces from other GDB modules. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #if !defined (GDBTYPES_H) 23 #define GDBTYPES_H 1 24 25 #include "hashtab.h" 26 27 /* Forward declarations for prototypes. */ 28 struct field; 29 struct block; 30 struct value_print_options; 31 struct language_defn; 32 33 /* Some macros for char-based bitfields. */ 34 35 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7))) 36 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7))) 37 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7))) 38 #define B_TYPE unsigned char 39 #define B_BYTES(x) ( 1 + ((x)>>3) ) 40 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x)) 41 42 /* Different kinds of data types are distinguished by the `code' field. */ 43 44 enum type_code 45 { 46 TYPE_CODE_UNDEF, /* Not used; catches errors */ 47 TYPE_CODE_PTR, /* Pointer type */ 48 49 /* Array type with lower & upper bounds. 50 51 Regardless of the language, GDB represents multidimensional 52 array types the way C does: as arrays of arrays. So an 53 instance of a GDB array type T can always be seen as a series 54 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in 55 memory. 56 57 Row-major languages like C lay out multi-dimensional arrays so 58 that incrementing the rightmost index in a subscripting 59 expression results in the smallest change in the address of the 60 element referred to. Column-major languages like Fortran lay 61 them out so that incrementing the leftmost index results in the 62 smallest change. 63 64 This means that, in column-major languages, working our way 65 from type to target type corresponds to working through indices 66 from right to left, not left to right. */ 67 TYPE_CODE_ARRAY, 68 69 TYPE_CODE_STRUCT, /* C struct or Pascal record */ 70 TYPE_CODE_UNION, /* C union or Pascal variant part */ 71 TYPE_CODE_ENUM, /* Enumeration type */ 72 TYPE_CODE_FLAGS, /* Bit flags type */ 73 TYPE_CODE_FUNC, /* Function type */ 74 TYPE_CODE_INT, /* Integer type */ 75 76 /* Floating type. This is *NOT* a complex type. Beware, there are parts 77 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */ 78 TYPE_CODE_FLT, 79 80 /* Void type. The length field specifies the length (probably always 81 one) which is used in pointer arithmetic involving pointers to 82 this type, but actually dereferencing such a pointer is invalid; 83 a void type has no length and no actual representation in memory 84 or registers. A pointer to a void type is a generic pointer. */ 85 TYPE_CODE_VOID, 86 87 TYPE_CODE_SET, /* Pascal sets */ 88 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds). */ 89 90 /* A string type which is like an array of character but prints 91 differently (at least for (the deleted) CHILL). It does not 92 contain a length field as Pascal strings (for many Pascals, 93 anyway) do; if we want to deal with such strings, we should use 94 a new type code. */ 95 TYPE_CODE_STRING, 96 97 /* String of bits; like TYPE_CODE_SET but prints differently (at 98 least for (the deleted) CHILL). */ 99 TYPE_CODE_BITSTRING, 100 101 /* Unknown type. The length field is valid if we were able to 102 deduce that much about the type, or 0 if we don't even know that. */ 103 TYPE_CODE_ERROR, 104 105 /* C++ */ 106 TYPE_CODE_METHOD, /* Method type */ 107 108 /* Pointer-to-member-function type. This describes how to access a 109 particular member function of a class (possibly a virtual 110 member function). The representation may vary between different 111 C++ ABIs. */ 112 TYPE_CODE_METHODPTR, 113 114 /* Pointer-to-member type. This is the offset within a class to some 115 particular data member. The only currently supported representation 116 uses an unbiased offset, with -1 representing NULL; this is used 117 by the Itanium C++ ABI (used by GCC on all platforms). */ 118 TYPE_CODE_MEMBERPTR, 119 120 TYPE_CODE_REF, /* C++ Reference types */ 121 122 TYPE_CODE_CHAR, /* *real* character type */ 123 124 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean 125 (e.g. FORTRAN "logical" used as unsigned int). */ 126 TYPE_CODE_BOOL, 127 128 /* Fortran */ 129 TYPE_CODE_COMPLEX, /* Complex float */ 130 131 TYPE_CODE_TYPEDEF, 132 133 TYPE_CODE_NAMESPACE, /* C++ namespace. */ 134 135 TYPE_CODE_DECFLOAT, /* Decimal floating point. */ 136 137 TYPE_CODE_MODULE, /* Fortran module. */ 138 139 /* Internal function type. */ 140 TYPE_CODE_INTERNAL_FUNCTION 141 }; 142 143 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an 144 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct 145 "class" attribute. Perhaps we should actually have a separate TYPE_CODE 146 so that we can print "class" or "struct" depending on what the debug 147 info said. It's not clear we should bother. */ 148 149 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT 150 151 /* Some constants representing each bit field in the main_type. See 152 the bit-field-specific macros, below, for documentation of each 153 constant in this enum. These enum values are only used with 154 init_type. Note that the values are chosen not to conflict with 155 type_instance_flag_value; this lets init_type error-check its 156 input. */ 157 158 enum type_flag_value 159 { 160 TYPE_FLAG_UNSIGNED = (1 << 7), 161 TYPE_FLAG_NOSIGN = (1 << 8), 162 TYPE_FLAG_STUB = (1 << 9), 163 TYPE_FLAG_TARGET_STUB = (1 << 10), 164 TYPE_FLAG_STATIC = (1 << 11), 165 TYPE_FLAG_PROTOTYPED = (1 << 12), 166 TYPE_FLAG_INCOMPLETE = (1 << 13), 167 TYPE_FLAG_VARARGS = (1 << 14), 168 TYPE_FLAG_VECTOR = (1 << 15), 169 TYPE_FLAG_FIXED_INSTANCE = (1 << 16), 170 TYPE_FLAG_STUB_SUPPORTED = (1 << 17), 171 TYPE_FLAG_GNU_IFUNC = (1 << 18), 172 173 /* Used for error-checking. */ 174 TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED 175 }; 176 177 /* Some bits for the type's instance_flags word. See the macros below 178 for documentation on each bit. Note that if you add a value here, 179 you must update the enum type_flag_value as well. */ 180 enum type_instance_flag_value 181 { 182 TYPE_INSTANCE_FLAG_CONST = (1 << 0), 183 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1), 184 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2), 185 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3), 186 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4), 187 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5), 188 TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6), 189 }; 190 191 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the 192 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */ 193 194 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned) 195 196 /* No sign for this type. In C++, "char", "signed char", and "unsigned 197 char" are distinct types; so we need an extra flag to indicate the 198 absence of a sign! */ 199 200 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign) 201 202 /* This appears in a type's flags word if it is a stub type (e.g., if 203 someone referenced a type that wasn't defined in a source file 204 via (struct sir_not_appearing_in_this_film *)). */ 205 206 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub) 207 208 /* The target type of this type is a stub type, and this type needs to 209 be updated if it gets un-stubbed in check_typedef. 210 Used for arrays and ranges, in which TYPE_LENGTH of the array/range 211 gets set based on the TYPE_LENGTH of the target type. 212 Also, set for TYPE_CODE_TYPEDEF. */ 213 214 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub) 215 216 /* Static type. If this is set, the corresponding type had 217 a static modifier. 218 Note: This may be unnecessary, since static data members 219 are indicated by other means (bitpos == -1). */ 220 221 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static) 222 223 /* This is a function type which appears to have a prototype. We need 224 this for function calls in order to tell us if it's necessary to 225 coerce the args, or to just do the standard conversions. This is 226 used with a short field. */ 227 228 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped) 229 230 /* This flag is used to indicate that processing for this type 231 is incomplete. 232 233 (Mostly intended for HP platforms, where class methods, for 234 instance, can be encountered before their classes in the debug 235 info; the incomplete type has to be marked so that the class and 236 the method can be assigned correct types.) */ 237 238 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete) 239 240 /* FIXME drow/2002-06-03: Only used for methods, but applies as well 241 to functions. */ 242 243 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs) 244 245 /* Identify a vector type. Gcc is handling this by adding an extra 246 attribute to the array type. We slurp that in as a new flag of a 247 type. This is used only in dwarf2read.c. */ 248 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector) 249 250 /* The debugging formats (especially STABS) do not contain enough information 251 to represent all Ada types---especially those whose size depends on 252 dynamic quantities. Therefore, the GNAT Ada compiler includes 253 extra information in the form of additional type definitions 254 connected by naming conventions. This flag indicates that the 255 type is an ordinary (unencoded) GDB type that has been created from 256 the necessary run-time information, and does not need further 257 interpretation. Optionally marks ordinary, fixed-size GDB type. */ 258 259 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance) 260 261 /* This debug target supports TYPE_STUB(t). In the unsupported case we have to 262 rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE (). 263 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only guessed 264 the TYPE_STUB(t) value (see dwarfread.c). */ 265 266 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported) 267 268 /* Not textual. By default, GDB treats all single byte integers as 269 characters (or elements of strings) unless this flag is set. */ 270 271 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT) 272 273 /* Used only for TYPE_CODE_FUNC where it specifies the real function 274 address is returned by this function call. TYPE_TARGET_TYPE determines the 275 final returned function type to be presented to user. */ 276 277 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc) 278 279 /* Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by 280 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is 281 owned by an architecture; TYPE_OBJFILE is NULL in this case. */ 282 283 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned) 284 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner 285 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL) 286 287 /* True if this type was declared using the "class" keyword. This is 288 only valid for C++ structure types, and only used for displaying 289 the type. If false, the structure was declared as a "struct". */ 290 291 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class) 292 293 /* Constant type. If this is set, the corresponding type has a 294 const modifier. */ 295 296 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) 297 298 /* Volatile type. If this is set, the corresponding type has a 299 volatile modifier. */ 300 301 #define TYPE_VOLATILE(t) \ 302 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) 303 304 /* Instruction-space delimited type. This is for Harvard architectures 305 which have separate instruction and data address spaces (and perhaps 306 others). 307 308 GDB usually defines a flat address space that is a superset of the 309 architecture's two (or more) address spaces, but this is an extension 310 of the architecture's model. 311 312 If TYPE_FLAG_INST is set, an object of the corresponding type 313 resides in instruction memory, even if its address (in the extended 314 flat address space) does not reflect this. 315 316 Similarly, if TYPE_FLAG_DATA is set, then an object of the 317 corresponding type resides in the data memory space, even if 318 this is not indicated by its (flat address space) address. 319 320 If neither flag is set, the default space for functions / methods 321 is instruction space, and for data objects is data memory. */ 322 323 #define TYPE_CODE_SPACE(t) \ 324 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) 325 326 #define TYPE_DATA_SPACE(t) \ 327 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) 328 329 /* Address class flags. Some environments provide for pointers whose 330 size is different from that of a normal pointer or address types 331 where the bits are interpreted differently than normal addresses. The 332 TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific 333 ways to represent these different types of address classes. */ 334 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \ 335 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1) 336 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \ 337 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2) 338 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \ 339 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2) 340 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \ 341 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) 342 343 /* Determine which field of the union main_type.fields[x].loc is used. */ 344 345 enum field_loc_kind 346 { 347 FIELD_LOC_KIND_BITPOS, /* bitpos */ 348 FIELD_LOC_KIND_PHYSADDR, /* physaddr */ 349 FIELD_LOC_KIND_PHYSNAME, /* physname */ 350 FIELD_LOC_KIND_DWARF_BLOCK /* dwarf_block */ 351 }; 352 353 /* A discriminant to determine which field in the main_type.type_specific 354 union is being used, if any. 355 356 For types such as TYPE_CODE_FLT or TYPE_CODE_FUNC, the use of this 357 discriminant is really redundant, as we know from the type code 358 which field is going to be used. As such, it would be possible to 359 reduce the size of this enum in order to save a bit or two for 360 other fields of struct main_type. But, since we still have extra 361 room , and for the sake of clarity and consistency, we treat all fields 362 of the union the same way. */ 363 364 enum type_specific_kind 365 { 366 TYPE_SPECIFIC_NONE, 367 TYPE_SPECIFIC_CPLUS_STUFF, 368 TYPE_SPECIFIC_GNAT_STUFF, 369 TYPE_SPECIFIC_FLOATFORMAT, 370 TYPE_SPECIFIC_FUNC 371 }; 372 373 /* This structure is space-critical. 374 Its layout has been tweaked to reduce the space used. */ 375 376 struct main_type 377 { 378 /* Code for kind of type. */ 379 380 ENUM_BITFIELD(type_code) code : 8; 381 382 /* Flags about this type. These fields appear at this location 383 because they packs nicely here. See the TYPE_* macros for 384 documentation about these fields. */ 385 386 unsigned int flag_unsigned : 1; 387 unsigned int flag_nosign : 1; 388 unsigned int flag_stub : 1; 389 unsigned int flag_target_stub : 1; 390 unsigned int flag_static : 1; 391 unsigned int flag_prototyped : 1; 392 unsigned int flag_incomplete : 1; 393 unsigned int flag_varargs : 1; 394 unsigned int flag_vector : 1; 395 unsigned int flag_stub_supported : 1; 396 unsigned int flag_gnu_ifunc : 1; 397 unsigned int flag_fixed_instance : 1; 398 unsigned int flag_objfile_owned : 1; 399 /* True if this type was declared with "class" rather than 400 "struct". */ 401 unsigned int flag_declared_class : 1; 402 403 /* A discriminant telling us which field of the type_specific union 404 is being used for this type, if any. */ 405 ENUM_BITFIELD(type_specific_kind) type_specific_field : 3; 406 407 /* Number of fields described for this type. This field appears at 408 this location because it packs nicely here. */ 409 410 short nfields; 411 412 /* Field number of the virtual function table pointer in 413 VPTR_BASETYPE. If -1, we were unable to find the virtual 414 function table pointer in initial symbol reading, and 415 get_vptr_fieldno should be called to find it if possible. 416 get_vptr_fieldno will update this field if possible. 417 Otherwise the value is left at -1. 418 419 Unused if this type does not have virtual functions. 420 421 This field appears at this location because it packs nicely here. */ 422 423 short vptr_fieldno; 424 425 /* Name of this type, or NULL if none. 426 427 This is used for printing only, except by poorly designed C++ code. 428 For looking up a name, look for a symbol in the VAR_DOMAIN. */ 429 430 char *name; 431 432 /* Tag name for this type, or NULL if none. This means that the 433 name of the type consists of a keyword followed by the tag name. 434 Which keyword is determined by the type code ("struct" for 435 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages 436 with this feature. 437 438 This is used for printing only, except by poorly designed C++ code. 439 For looking up a name, look for a symbol in the STRUCT_DOMAIN. 440 One more legitimate use is that if TYPE_FLAG_STUB is set, this is 441 the name to use to look for definitions in other files. */ 442 443 char *tag_name; 444 445 /* Every type is now associated with a particular objfile, and the 446 type is allocated on the objfile_obstack for that objfile. One problem 447 however, is that there are times when gdb allocates new types while 448 it is not in the process of reading symbols from a particular objfile. 449 Fortunately, these happen when the type being created is a derived 450 type of an existing type, such as in lookup_pointer_type(). So 451 we can just allocate the new type using the same objfile as the 452 existing type, but to do this we need a backpointer to the objfile 453 from the existing type. Yes this is somewhat ugly, but without 454 major overhaul of the internal type system, it can't be avoided 455 for now. */ 456 457 union type_owner 458 { 459 struct objfile *objfile; 460 struct gdbarch *gdbarch; 461 } owner; 462 463 /* For a pointer type, describes the type of object pointed to. 464 For an array type, describes the type of the elements. 465 For a function or method type, describes the type of the return value. 466 For a range type, describes the type of the full range. 467 For a complex type, describes the type of each coordinate. 468 For a special record or union type encoding a dynamic-sized type 469 in GNAT, a memoized pointer to a corresponding static version of 470 the type. 471 Unused otherwise. */ 472 473 struct type *target_type; 474 475 /* For structure and union types, a description of each field. 476 For set and pascal array types, there is one "field", 477 whose type is the domain type of the set or array. 478 For range types, there are two "fields", 479 the minimum and maximum values (both inclusive). 480 For enum types, each possible value is described by one "field". 481 For a function or method type, a "field" for each parameter. 482 For C++ classes, there is one field for each base class (if it is 483 a derived class) plus one field for each class data member. Member 484 functions are recorded elsewhere. 485 486 Using a pointer to a separate array of fields 487 allows all types to have the same size, which is useful 488 because we can allocate the space for a type before 489 we know what to put in it. */ 490 491 union 492 { 493 struct field 494 { 495 union field_location 496 { 497 /* Position of this field, counting in bits from start of 498 containing structure. For gdbarch_bits_big_endian=1 499 targets, it is the bit offset to the MSB. For 500 gdbarch_bits_big_endian=0 targets, it is the bit offset to 501 the LSB. For a range bound or enum value, this is the 502 value itself. */ 503 504 int bitpos; 505 506 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr 507 is the location (in the target) of the static field. 508 Otherwise, physname is the mangled label of the static field. */ 509 510 CORE_ADDR physaddr; 511 const char *physname; 512 513 /* The field location can be computed by evaluating the following DWARF 514 block. Its DATA is allocated on objfile_obstack - no CU load is 515 needed to access it. */ 516 517 struct dwarf2_locexpr_baton *dwarf_block; 518 } 519 loc; 520 521 /* For a function or member type, this is 1 if the argument is marked 522 artificial. Artificial arguments should not be shown to the 523 user. For TYPE_CODE_RANGE it is set if the specific bound is not 524 defined. */ 525 unsigned int artificial : 1; 526 527 /* Discriminant for union field_location. */ 528 ENUM_BITFIELD(field_loc_kind) loc_kind : 2; 529 530 /* Size of this field, in bits, or zero if not packed. 531 If non-zero in an array type, indicates the element size in 532 bits (used only in Ada at the moment). 533 For an unpacked field, the field's type's length 534 says how many bytes the field occupies. */ 535 536 unsigned int bitsize : 29; 537 538 /* In a struct or union type, type of this field. 539 In a function or member type, type of this argument. 540 In an array type, the domain-type of the array. */ 541 542 struct type *type; 543 544 /* Name of field, value or argument. 545 NULL for range bounds, array domains, and member function 546 arguments. */ 547 548 char *name; 549 } *fields; 550 551 /* Union member used for range types. */ 552 553 struct range_bounds 554 { 555 /* Low bound of range. */ 556 557 LONGEST low; 558 559 /* High bound of range. */ 560 561 LONGEST high; 562 563 /* Flags indicating whether the values of low and high are 564 valid. When true, the respective range value is 565 undefined. Currently used only for FORTRAN arrays. */ 566 567 char low_undefined; 568 char high_undefined; 569 570 } *bounds; 571 572 } flds_bnds; 573 574 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE 575 is the base class which defined the virtual function table pointer. 576 577 For types that are pointer to member types (TYPE_CODE_METHODPTR, 578 TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer 579 is a member of. 580 581 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate 582 type that contains the method. 583 584 Unused otherwise. */ 585 586 struct type *vptr_basetype; 587 588 /* Slot to point to additional language-specific fields of this type. */ 589 590 union type_specific 591 { 592 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to 593 cplus_struct_default, a default static instance of a struct 594 cplus_struct_type. */ 595 596 struct cplus_struct_type *cplus_stuff; 597 598 /* GNAT_STUFF is for types for which the GNAT Ada compiler 599 provides additional information. */ 600 struct gnat_aux_type *gnat_stuff; 601 602 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two 603 floatformat objects that describe the floating-point value 604 that resides within the type. The first is for big endian 605 targets and the second is for little endian targets. */ 606 607 const struct floatformat **floatformat; 608 609 /* For TYPE_CODE_FUNC types, */ 610 struct func_type *func_stuff; 611 } type_specific; 612 }; 613 614 /* A ``struct type'' describes a particular instance of a type, with 615 some particular qualification. */ 616 struct type 617 { 618 /* Type that is a pointer to this type. 619 NULL if no such pointer-to type is known yet. 620 The debugger may add the address of such a type 621 if it has to construct one later. */ 622 623 struct type *pointer_type; 624 625 /* C++: also need a reference type. */ 626 627 struct type *reference_type; 628 629 /* Variant chain. This points to a type that differs from this one only 630 in qualifiers and length. Currently, the possible qualifiers are 631 const, volatile, code-space, data-space, and address class. The 632 length may differ only when one of the address class flags are set. 633 The variants are linked in a circular ring and share MAIN_TYPE. */ 634 struct type *chain; 635 636 /* Flags specific to this instance of the type, indicating where 637 on the ring we are. 638 639 For TYPE_CODE_TYPEDEF the flags of the typedef type should be binary 640 or-ed with the target type, with a special case for address class and 641 space class. For example if this typedef does not specify any new 642 qualifiers, TYPE_INSTANCE_FLAGS is 0 and the instance flags are 643 completely inherited from the target type. No qualifiers can be cleared 644 by the typedef. See also check_typedef. */ 645 int instance_flags; 646 647 /* Length of storage for a value of this type. This is what 648 sizeof(type) would return; use it for address arithmetic, 649 memory reads and writes, etc. This size includes padding. For 650 example, an i386 extended-precision floating point value really 651 only occupies ten bytes, but most ABI's declare its size to be 652 12 bytes, to preserve alignment. A `struct type' representing 653 such a floating-point type would have a `length' value of 12, 654 even though the last two bytes are unused. 655 656 There's a bit of a host/target mess here, if you're concerned 657 about machines whose bytes aren't eight bits long, or who don't 658 have byte-addressed memory. Various places pass this to memcpy 659 and such, meaning it must be in units of host bytes. Various 660 other places expect they can calculate addresses by adding it 661 and such, meaning it must be in units of target bytes. For 662 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8 663 and TARGET_CHAR_BIT will be (say) 32, this is a problem. 664 665 One fix would be to make this field in bits (requiring that it 666 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) --- 667 the other choice would be to make it consistently in units of 668 HOST_CHAR_BIT. However, this would still fail to address 669 machines based on a ternary or decimal representation. */ 670 671 unsigned length; 672 673 /* Core type, shared by a group of qualified types. */ 674 struct main_type *main_type; 675 }; 676 677 #define NULL_TYPE ((struct type *) 0) 678 679 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION 680 nodes. */ 681 682 struct cplus_struct_type 683 { 684 /* Number of base classes this type derives from. The baseclasses are 685 stored in the first N_BASECLASSES fields (i.e. the `fields' field of 686 the struct type). I think only the `type' field of such a field has 687 any meaning. */ 688 689 short n_baseclasses; 690 691 /* Number of methods with unique names. All overloaded methods with 692 the same name count only once. */ 693 694 short nfn_fields; 695 696 /* Number of methods described for this type, not including the 697 methods that it derives from. */ 698 699 short nfn_fields_total; 700 701 /* Number of template arguments. */ 702 unsigned short n_template_arguments; 703 704 /* One if this struct is a dynamic class, as defined by the 705 Itanium C++ ABI: if it requires a virtual table pointer, 706 because it or any of its base classes have one or more virtual 707 member functions or virtual base classes. Minus one if not 708 dynamic. Zero if not yet computed. */ 709 int is_dynamic : 2; 710 711 /* Non-zero if this type came from a Java CU. */ 712 unsigned int is_java : 1; 713 714 /* For derived classes, the number of base classes is given by 715 n_baseclasses and virtual_field_bits is a bit vector containing 716 one bit per base class. If the base class is virtual, the 717 corresponding bit will be set. 718 I.E, given: 719 720 class A{}; 721 class B{}; 722 class C : public B, public virtual A {}; 723 724 B is a baseclass of C; A is a virtual baseclass for C. 725 This is a C++ 2.0 language feature. */ 726 727 B_TYPE *virtual_field_bits; 728 729 /* For classes with private fields, the number of fields is given by 730 nfields and private_field_bits is a bit vector containing one bit 731 per field. 732 If the field is private, the corresponding bit will be set. */ 733 734 B_TYPE *private_field_bits; 735 736 /* For classes with protected fields, the number of fields is given by 737 nfields and protected_field_bits is a bit vector containing one bit 738 per field. 739 If the field is private, the corresponding bit will be set. */ 740 741 B_TYPE *protected_field_bits; 742 743 /* For classes with fields to be ignored, either this is optimized out 744 or this field has length 0. */ 745 746 B_TYPE *ignore_field_bits; 747 748 /* For classes, structures, and unions, a description of each field, 749 which consists of an overloaded name, followed by the types of 750 arguments that the method expects, and then the name after it 751 has been renamed to make it distinct. 752 753 fn_fieldlists points to an array of nfn_fields of these. */ 754 755 struct fn_fieldlist 756 { 757 758 /* The overloaded name. */ 759 760 char *name; 761 762 /* The number of methods with this name. */ 763 764 int length; 765 766 /* The list of methods. */ 767 768 struct fn_field 769 { 770 771 /* If is_stub is clear, this is the mangled name which we can 772 look up to find the address of the method (FIXME: it would 773 be cleaner to have a pointer to the struct symbol here 774 instead). */ 775 776 /* If is_stub is set, this is the portion of the mangled 777 name which specifies the arguments. For example, "ii", 778 if there are two int arguments, or "" if there are no 779 arguments. See gdb_mangle_name for the conversion from this 780 format to the one used if is_stub is clear. */ 781 782 const char *physname; 783 784 /* The function type for the method. 785 (This comment used to say "The return value of the method", 786 but that's wrong. The function type 787 is expected here, i.e. something with TYPE_CODE_FUNC, 788 and *not* the return-value type). */ 789 790 struct type *type; 791 792 /* For virtual functions. 793 First baseclass that defines this virtual function. */ 794 795 struct type *fcontext; 796 797 /* Attributes. */ 798 799 unsigned int is_const:1; 800 unsigned int is_volatile:1; 801 unsigned int is_private:1; 802 unsigned int is_protected:1; 803 unsigned int is_public:1; 804 unsigned int is_abstract:1; 805 unsigned int is_static:1; 806 unsigned int is_final:1; 807 unsigned int is_synchronized:1; 808 unsigned int is_native:1; 809 unsigned int is_artificial:1; 810 811 /* A stub method only has some fields valid (but they are enough 812 to reconstruct the rest of the fields). */ 813 unsigned int is_stub:1; 814 815 /* Unused. */ 816 unsigned int dummy:4; 817 818 /* Index into that baseclass's virtual function table, 819 minus 2; else if static: VOFFSET_STATIC; else: 0. */ 820 821 unsigned int voffset:16; 822 823 #define VOFFSET_STATIC 1 824 825 } 826 *fn_fields; 827 828 } 829 *fn_fieldlists; 830 831 /* Pointer to information about enclosing scope, if this is a 832 local type. If it is not a local type, this is NULL. */ 833 struct local_type_info 834 { 835 char *file; 836 int line; 837 } 838 *localtype_ptr; 839 840 /* typedefs defined inside this class. TYPEDEF_FIELD points to an array of 841 TYPEDEF_FIELD_COUNT elements. */ 842 struct typedef_field 843 { 844 /* Unqualified name to be prefixed by owning class qualified name. */ 845 const char *name; 846 847 /* Type this typedef named NAME represents. */ 848 struct type *type; 849 } 850 *typedef_field; 851 unsigned typedef_field_count; 852 853 /* The template arguments. This is an array with 854 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template 855 classes. */ 856 struct symbol **template_arguments; 857 }; 858 859 /* Struct used in computing virtual base list. */ 860 struct vbase 861 { 862 struct type *vbasetype; /* pointer to virtual base */ 863 struct vbase *next; /* next in chain */ 864 }; 865 866 /* Struct used to store conversion rankings. */ 867 struct rank 868 { 869 short rank; 870 871 /* When two conversions are of the same type and therefore have the same 872 rank, subrank is used to differentiate the two. 873 Eg: Two derived-class-pointer to base-class-pointer conversions would 874 both have base pointer conversion rank, but the conversion with the 875 shorter distance to the ancestor is preferable. 'subrank' would be used 876 to reflect that. */ 877 short subrank; 878 }; 879 880 /* Struct used for ranking a function for overload resolution. */ 881 struct badness_vector 882 { 883 int length; 884 struct rank *rank; 885 }; 886 887 /* GNAT Ada-specific information for various Ada types. */ 888 struct gnat_aux_type 889 { 890 /* Parallel type used to encode information about dynamic types 891 used in Ada (such as variant records, variable-size array, 892 etc). */ 893 struct type* descriptive_type; 894 }; 895 896 /* For TYPE_CODE_FUNC types, */ 897 struct func_type 898 { 899 /* The calling convention for targets supporting multiple ABIs. Right now 900 this is only fetched from the Dwarf-2 DW_AT_calling_convention 901 attribute. */ 902 unsigned calling_convention; 903 904 /* Only those DW_TAG_GNU_call_site's in this function that have 905 DW_AT_GNU_tail_call set are linked in this list. Function without its 906 tail call list complete (DW_AT_GNU_all_tail_call_sites or its superset 907 DW_AT_GNU_all_call_sites) has TAIL_CALL_LIST NULL, even if some 908 DW_TAG_GNU_call_site's exist in such function. */ 909 struct call_site *tail_call_list; 910 }; 911 912 /* A place where a function gets called from, represented by 913 DW_TAG_GNU_call_site. It can be looked up from symtab->call_site_htab. */ 914 915 struct call_site 916 { 917 /* Address of the first instruction after this call. It must be the first 918 field as we overload core_addr_hash and core_addr_eq for it. */ 919 CORE_ADDR pc; 920 921 /* List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */ 922 struct call_site *tail_call_next; 923 924 /* Describe DW_AT_GNU_call_site_target. Missing attribute uses 925 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */ 926 struct 927 { 928 union field_location loc; 929 930 /* Discriminant for union field_location. */ 931 ENUM_BITFIELD(field_loc_kind) loc_kind : 2; 932 } 933 target; 934 935 /* Size of the PARAMETER array. */ 936 unsigned parameter_count; 937 938 /* CU of the function where the call is located. It gets used for DWARF 939 blocks execution in the parameter array below. */ 940 struct dwarf2_per_cu_data *per_cu; 941 942 /* Describe DW_TAG_GNU_call_site's DW_TAG_formal_parameter. */ 943 struct call_site_parameter 944 { 945 /* DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX as DWARF 946 register number, for register passed parameters. If -1 then use 947 fb_offset. */ 948 int dwarf_reg; 949 950 /* Offset from the callee's frame base, for stack passed parameters. 951 This equals offset from the caller's stack pointer. Valid only if 952 DWARF_REGNUM is -1. */ 953 CORE_ADDR fb_offset; 954 955 /* DW_TAG_formal_parameter's DW_AT_GNU_call_site_value. It is never 956 NULL. */ 957 const gdb_byte *value; 958 size_t value_size; 959 960 /* DW_TAG_formal_parameter's DW_AT_GNU_call_site_data_value. It may be 961 NULL if not provided by DWARF. */ 962 const gdb_byte *data_value; 963 size_t data_value_size; 964 } 965 parameter[1]; 966 }; 967 968 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the 969 this shared static structure. */ 970 971 extern const struct cplus_struct_type cplus_struct_default; 972 973 extern void allocate_cplus_struct_type (struct type *); 974 975 #define INIT_CPLUS_SPECIFIC(type) \ 976 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \ 977 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \ 978 &cplus_struct_default) 979 980 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type) 981 982 #define HAVE_CPLUS_STRUCT(type) \ 983 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \ 984 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default) 985 986 extern const struct gnat_aux_type gnat_aux_default; 987 988 extern void allocate_gnat_aux_type (struct type *); 989 990 #define INIT_GNAT_SPECIFIC(type) \ 991 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \ 992 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default) 993 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type) 994 /* A macro that returns non-zero if the type-specific data should be 995 read as "gnat-stuff". */ 996 #define HAVE_GNAT_AUX_INFO(type) \ 997 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF) 998 999 #define INIT_FUNC_SPECIFIC(type) \ 1000 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \ 1001 TYPE_MAIN_TYPE (type)->type_specific.func_stuff \ 1002 = TYPE_ZALLOC (type, \ 1003 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff))) 1004 1005 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags 1006 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type 1007 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name 1008 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name 1009 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type 1010 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type 1011 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type 1012 #define TYPE_CHAIN(thistype) (thistype)->chain 1013 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef. 1014 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type, 1015 so you only have to call check_typedef once. Since allocate_value 1016 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */ 1017 #define TYPE_LENGTH(thistype) (thistype)->length 1018 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real 1019 type, you need to do TYPE_CODE (check_type (this_type)). */ 1020 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code 1021 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields 1022 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields 1023 1024 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0) 1025 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds 1026 #define TYPE_LOW_BOUND(range_type) TYPE_RANGE_DATA(range_type)->low 1027 #define TYPE_HIGH_BOUND(range_type) TYPE_RANGE_DATA(range_type)->high 1028 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \ 1029 TYPE_RANGE_DATA(range_type)->low_undefined 1030 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \ 1031 TYPE_RANGE_DATA(range_type)->high_undefined 1032 1033 /* Moto-specific stuff for FORTRAN arrays. */ 1034 1035 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \ 1036 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype)) 1037 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \ 1038 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype)) 1039 1040 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \ 1041 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype)))) 1042 1043 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \ 1044 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype)))) 1045 1046 /* C++ */ 1047 1048 #define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype 1049 #define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype 1050 #define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno 1051 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields 1052 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields 1053 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total 1054 #define TYPE_SPECIFIC_FIELD(thistype) \ 1055 TYPE_MAIN_TYPE(thistype)->type_specific_field 1056 #define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific 1057 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case 1058 where we're trying to print an Ada array using the C language. 1059 In that case, there is no "cplus_stuff", but the C language assumes 1060 that there is. What we do, in that case, is pretend that there is 1061 an implicit one which is the default cplus stuff. */ 1062 #define TYPE_CPLUS_SPECIFIC(thistype) \ 1063 (!HAVE_CPLUS_STRUCT(thistype) \ 1064 ? (struct cplus_struct_type*)&cplus_struct_default \ 1065 : TYPE_RAW_CPLUS_SPECIFIC(thistype)) 1066 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff 1067 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat 1068 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff 1069 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type 1070 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention 1071 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list 1072 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index) 1073 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses 1074 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index) 1075 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index) 1076 #define BASETYPE_VIA_PUBLIC(thistype, index) \ 1077 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index))) 1078 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic 1079 #define TYPE_CPLUS_REALLY_JAVA(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_java 1080 1081 #define BASETYPE_VIA_VIRTUAL(thistype, index) \ 1082 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ 1083 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))) 1084 1085 #define FIELD_TYPE(thisfld) ((thisfld).type) 1086 #define FIELD_NAME(thisfld) ((thisfld).name) 1087 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind) 1088 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos) 1089 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname) 1090 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr) 1091 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block) 1092 #define SET_FIELD_BITPOS(thisfld, bitpos) \ 1093 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \ 1094 FIELD_BITPOS (thisfld) = (bitpos)) 1095 #define SET_FIELD_PHYSNAME(thisfld, name) \ 1096 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \ 1097 FIELD_STATIC_PHYSNAME (thisfld) = (name)) 1098 #define SET_FIELD_PHYSADDR(thisfld, addr) \ 1099 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \ 1100 FIELD_STATIC_PHYSADDR (thisfld) = (addr)) 1101 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \ 1102 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \ 1103 FIELD_DWARF_BLOCK (thisfld) = (addr)) 1104 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial) 1105 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize) 1106 1107 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n] 1108 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n)) 1109 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n)) 1110 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n)) 1111 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n)) 1112 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n)) 1113 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n)) 1114 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n)) 1115 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n)) 1116 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n)) 1117 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0) 1118 1119 #define TYPE_FIELD_PRIVATE_BITS(thistype) \ 1120 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits 1121 #define TYPE_FIELD_PROTECTED_BITS(thistype) \ 1122 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits 1123 #define TYPE_FIELD_IGNORE_BITS(thistype) \ 1124 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits 1125 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \ 1126 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits 1127 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \ 1128 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)) 1129 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \ 1130 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)) 1131 #define SET_TYPE_FIELD_IGNORE(thistype, n) \ 1132 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)) 1133 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \ 1134 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)) 1135 #define TYPE_FIELD_PRIVATE(thistype, n) \ 1136 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \ 1137 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))) 1138 #define TYPE_FIELD_PROTECTED(thistype, n) \ 1139 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \ 1140 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))) 1141 #define TYPE_FIELD_IGNORE(thistype, n) \ 1142 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \ 1143 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))) 1144 #define TYPE_FIELD_VIRTUAL(thistype, n) \ 1145 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ 1146 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))) 1147 1148 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists 1149 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n] 1150 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields 1151 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name 1152 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length 1153 1154 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \ 1155 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments 1156 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \ 1157 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments 1158 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \ 1159 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n] 1160 1161 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n] 1162 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname 1163 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type 1164 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type) 1165 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const) 1166 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile) 1167 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private) 1168 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected) 1169 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public) 1170 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static) 1171 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final) 1172 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized) 1173 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native) 1174 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial) 1175 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract) 1176 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub) 1177 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext) 1178 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2) 1179 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1) 1180 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC) 1181 1182 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr) 1183 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file) 1184 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line) 1185 1186 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \ 1187 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field 1188 #define TYPE_TYPEDEF_FIELD(thistype, n) \ 1189 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n] 1190 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \ 1191 TYPE_TYPEDEF_FIELD (thistype, n).name 1192 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \ 1193 TYPE_TYPEDEF_FIELD (thistype, n).type 1194 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \ 1195 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count 1196 1197 #define TYPE_IS_OPAQUE(thistype) \ 1198 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \ 1199 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \ 1200 && (TYPE_NFIELDS (thistype) == 0) \ 1201 && (!HAVE_CPLUS_STRUCT (thistype) \ 1202 || TYPE_NFN_FIELDS (thistype) == 0) \ 1203 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype))) 1204 1205 /* A helper macro that returns the name of a type or "unnamed type" if the type 1206 has no name. */ 1207 #define TYPE_SAFE_NAME(type) \ 1208 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>")) 1209 1210 /* A helper macro that returns the name of an error type. If the type 1211 has a name, it is used; otherwise, a default is used. */ 1212 #define TYPE_ERROR_NAME(type) \ 1213 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>")) 1214 1215 struct builtin_type 1216 { 1217 /* Integral types. */ 1218 1219 /* Implicit size/sign (based on the architecture's ABI). */ 1220 struct type *builtin_void; 1221 struct type *builtin_char; 1222 struct type *builtin_short; 1223 struct type *builtin_int; 1224 struct type *builtin_long; 1225 struct type *builtin_signed_char; 1226 struct type *builtin_unsigned_char; 1227 struct type *builtin_unsigned_short; 1228 struct type *builtin_unsigned_int; 1229 struct type *builtin_unsigned_long; 1230 struct type *builtin_float; 1231 struct type *builtin_double; 1232 struct type *builtin_long_double; 1233 struct type *builtin_complex; 1234 struct type *builtin_double_complex; 1235 struct type *builtin_string; 1236 struct type *builtin_bool; 1237 struct type *builtin_long_long; 1238 struct type *builtin_unsigned_long_long; 1239 struct type *builtin_decfloat; 1240 struct type *builtin_decdouble; 1241 struct type *builtin_declong; 1242 1243 /* "True" character types. 1244 We use these for the '/c' print format, because c_char is just a 1245 one-byte integral type, which languages less laid back than C 1246 will print as ... well, a one-byte integral type. */ 1247 struct type *builtin_true_char; 1248 struct type *builtin_true_unsigned_char; 1249 1250 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0" 1251 is for when an architecture needs to describe a register that has 1252 no size. */ 1253 struct type *builtin_int0; 1254 struct type *builtin_int8; 1255 struct type *builtin_uint8; 1256 struct type *builtin_int16; 1257 struct type *builtin_uint16; 1258 struct type *builtin_int32; 1259 struct type *builtin_uint32; 1260 struct type *builtin_int64; 1261 struct type *builtin_uint64; 1262 struct type *builtin_int128; 1263 struct type *builtin_uint128; 1264 1265 /* Wide character types. */ 1266 struct type *builtin_char16; 1267 struct type *builtin_char32; 1268 1269 /* Pointer types. */ 1270 1271 /* `pointer to data' type. Some target platforms use an implicitly 1272 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */ 1273 struct type *builtin_data_ptr; 1274 1275 /* `pointer to function (returning void)' type. Harvard 1276 architectures mean that ABI function and code pointers are not 1277 interconvertible. Similarly, since ANSI, C standards have 1278 explicitly said that pointers to functions and pointers to data 1279 are not interconvertible --- that is, you can't cast a function 1280 pointer to void * and back, and expect to get the same value. 1281 However, all function pointer types are interconvertible, so void 1282 (*) () can server as a generic function pointer. */ 1283 struct type *builtin_func_ptr; 1284 1285 /* `function returning pointer to function (returning void)' type. 1286 The final void return type is not significant for it. */ 1287 struct type *builtin_func_func; 1288 1289 1290 /* Special-purpose types. */ 1291 1292 /* This type is used to represent a GDB internal function. */ 1293 struct type *internal_fn; 1294 }; 1295 1296 /* Return the type table for the specified architecture. */ 1297 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch); 1298 1299 1300 /* Per-objfile types used by symbol readers. */ 1301 1302 struct objfile_type 1303 { 1304 /* Basic types based on the objfile architecture. */ 1305 struct type *builtin_void; 1306 struct type *builtin_char; 1307 struct type *builtin_short; 1308 struct type *builtin_int; 1309 struct type *builtin_long; 1310 struct type *builtin_long_long; 1311 struct type *builtin_signed_char; 1312 struct type *builtin_unsigned_char; 1313 struct type *builtin_unsigned_short; 1314 struct type *builtin_unsigned_int; 1315 struct type *builtin_unsigned_long; 1316 struct type *builtin_unsigned_long_long; 1317 struct type *builtin_float; 1318 struct type *builtin_double; 1319 struct type *builtin_long_double; 1320 1321 /* This type is used to represent symbol addresses. */ 1322 struct type *builtin_core_addr; 1323 1324 /* This type represents a type that was unrecognized in symbol read-in. */ 1325 struct type *builtin_error; 1326 1327 /* Types used for symbols with no debug information. */ 1328 struct type *nodebug_text_symbol; 1329 struct type *nodebug_text_gnu_ifunc_symbol; 1330 struct type *nodebug_got_plt_symbol; 1331 struct type *nodebug_data_symbol; 1332 struct type *nodebug_unknown_symbol; 1333 struct type *nodebug_tls_symbol; 1334 }; 1335 1336 /* Return the type table for the specified objfile. */ 1337 extern const struct objfile_type *objfile_type (struct objfile *objfile); 1338 1339 1340 /* Explicit floating-point formats. See "floatformat.h". */ 1341 extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN]; 1342 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN]; 1343 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN]; 1344 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN]; 1345 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN]; 1346 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN]; 1347 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN]; 1348 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN]; 1349 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN]; 1350 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN]; 1351 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN]; 1352 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN]; 1353 1354 1355 /* Allocate space for storing data associated with a particular type. 1356 We ensure that the space is allocated using the same mechanism that 1357 was used to allocate the space for the type structure itself. I.e. 1358 if the type is on an objfile's objfile_obstack, then the space for data 1359 associated with that type will also be allocated on the objfile_obstack. 1360 If the type is not associated with any particular objfile (such as 1361 builtin types), then the data space will be allocated with xmalloc, 1362 the same as for the type structure. */ 1363 1364 #define TYPE_ALLOC(t,size) \ 1365 (TYPE_OBJFILE_OWNED (t) \ 1366 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \ 1367 : xmalloc (size)) 1368 1369 #define TYPE_ZALLOC(t,size) \ 1370 (TYPE_OBJFILE_OWNED (t) \ 1371 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \ 1372 0, size) \ 1373 : xzalloc (size)) 1374 1375 /* Use alloc_type to allocate a type owned by an objfile. 1376 Use alloc_type_arch to allocate a type owned by an architecture. 1377 Use alloc_type_copy to allocate a type with the same owner as a 1378 pre-existing template type, no matter whether objfile or gdbarch. */ 1379 extern struct type *alloc_type (struct objfile *); 1380 extern struct type *alloc_type_arch (struct gdbarch *); 1381 extern struct type *alloc_type_copy (const struct type *); 1382 1383 /* Return the type's architecture. For types owned by an architecture, 1384 that architecture is returned. For types owned by an objfile, that 1385 objfile's architecture is returned. */ 1386 extern struct gdbarch *get_type_arch (const struct type *); 1387 1388 /* Helper function to construct objfile-owned types. */ 1389 extern struct type *init_type (enum type_code, int, int, char *, 1390 struct objfile *); 1391 1392 /* Helper functions to construct architecture-owned types. */ 1393 extern struct type *arch_type (struct gdbarch *, enum type_code, int, char *); 1394 extern struct type *arch_integer_type (struct gdbarch *, int, int, char *); 1395 extern struct type *arch_character_type (struct gdbarch *, int, int, char *); 1396 extern struct type *arch_boolean_type (struct gdbarch *, int, int, char *); 1397 extern struct type *arch_float_type (struct gdbarch *, int, char *, 1398 const struct floatformat **); 1399 extern struct type *arch_complex_type (struct gdbarch *, char *, 1400 struct type *); 1401 1402 /* Helper functions to construct a struct or record type. An 1403 initially empty type is created using arch_composite_type(). 1404 Fields are then added using append_composite_type_field*(). A union 1405 type has its size set to the largest field. A struct type has each 1406 field packed against the previous. */ 1407 1408 extern struct type *arch_composite_type (struct gdbarch *gdbarch, 1409 char *name, enum type_code code); 1410 extern void append_composite_type_field (struct type *t, char *name, 1411 struct type *field); 1412 extern void append_composite_type_field_aligned (struct type *t, 1413 char *name, 1414 struct type *field, 1415 int alignment); 1416 struct field *append_composite_type_field_raw (struct type *t, char *name, 1417 struct type *field); 1418 1419 /* Helper functions to construct a bit flags type. An initially empty 1420 type is created using arch_flag_type(). Flags are then added using 1421 append_flag_type_flag(). */ 1422 extern struct type *arch_flags_type (struct gdbarch *gdbarch, 1423 char *name, int length); 1424 extern void append_flags_type_flag (struct type *type, int bitpos, char *name); 1425 1426 extern void make_vector_type (struct type *array_type); 1427 extern struct type *init_vector_type (struct type *elt_type, int n); 1428 1429 extern struct type *lookup_reference_type (struct type *); 1430 1431 extern struct type *make_reference_type (struct type *, struct type **); 1432 1433 extern struct type *make_cv_type (int, int, struct type *, struct type **); 1434 1435 extern void replace_type (struct type *, struct type *); 1436 1437 extern int address_space_name_to_int (struct gdbarch *, char *); 1438 1439 extern const char *address_space_int_to_name (struct gdbarch *, int); 1440 1441 extern struct type *make_type_with_address_space (struct type *type, 1442 int space_identifier); 1443 1444 extern struct type *lookup_memberptr_type (struct type *, struct type *); 1445 1446 extern struct type *lookup_methodptr_type (struct type *); 1447 1448 extern void smash_to_method_type (struct type *type, struct type *domain, 1449 struct type *to_type, struct field *args, 1450 int nargs, int varargs); 1451 1452 extern void smash_to_memberptr_type (struct type *, struct type *, 1453 struct type *); 1454 1455 extern void smash_to_methodptr_type (struct type *, struct type *); 1456 1457 extern struct type *allocate_stub_method (struct type *); 1458 1459 extern char *type_name_no_tag (const struct type *); 1460 1461 extern const char *type_name_no_tag_or_error (struct type *type); 1462 1463 extern struct type *lookup_struct_elt_type (struct type *, char *, int); 1464 1465 extern struct type *make_pointer_type (struct type *, struct type **); 1466 1467 extern struct type *lookup_pointer_type (struct type *); 1468 1469 extern struct type *make_function_type (struct type *, struct type **); 1470 1471 extern struct type *lookup_function_type (struct type *); 1472 1473 extern struct type *create_range_type (struct type *, struct type *, LONGEST, 1474 LONGEST); 1475 1476 extern struct type *create_array_type (struct type *, struct type *, 1477 struct type *); 1478 extern struct type *lookup_array_range_type (struct type *, int, int); 1479 1480 extern struct type *create_string_type (struct type *, struct type *, 1481 struct type *); 1482 extern struct type *lookup_string_range_type (struct type *, int, int); 1483 1484 extern struct type *create_set_type (struct type *, struct type *); 1485 1486 extern struct type *lookup_unsigned_typename (const struct language_defn *, 1487 struct gdbarch *,char *); 1488 1489 extern struct type *lookup_signed_typename (const struct language_defn *, 1490 struct gdbarch *,char *); 1491 1492 extern struct type *check_typedef (struct type *); 1493 1494 #define CHECK_TYPEDEF(TYPE) \ 1495 do { \ 1496 (TYPE) = check_typedef (TYPE); \ 1497 } while (0) 1498 1499 extern void check_stub_method_group (struct type *, int); 1500 1501 extern char *gdb_mangle_name (struct type *, int, int); 1502 1503 extern struct type *lookup_typename (const struct language_defn *, 1504 struct gdbarch *, const char *, 1505 const struct block *, int); 1506 1507 extern struct type *lookup_template_type (char *, struct type *, 1508 struct block *); 1509 1510 extern int get_vptr_fieldno (struct type *, struct type **); 1511 1512 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *); 1513 1514 extern int get_array_bounds (struct type *type, LONGEST *low_bound, 1515 LONGEST *high_bound); 1516 1517 extern int class_types_same_p (const struct type *, const struct type *); 1518 1519 extern int is_ancestor (struct type *, struct type *); 1520 1521 extern int is_public_ancestor (struct type *, struct type *); 1522 1523 extern int is_unique_ancestor (struct type *, struct value *); 1524 1525 /* Overload resolution */ 1526 1527 #define LENGTH_MATCH(bv) ((bv)->rank[0]) 1528 1529 /* Badness if parameter list length doesn't match arg list length. */ 1530 extern const struct rank LENGTH_MISMATCH_BADNESS; 1531 1532 /* Dummy badness value for nonexistent parameter positions. */ 1533 extern const struct rank TOO_FEW_PARAMS_BADNESS; 1534 /* Badness if no conversion among types. */ 1535 extern const struct rank INCOMPATIBLE_TYPE_BADNESS; 1536 1537 /* Badness of an exact match. */ 1538 extern const struct rank EXACT_MATCH_BADNESS; 1539 1540 /* Badness of integral promotion. */ 1541 extern const struct rank INTEGER_PROMOTION_BADNESS; 1542 /* Badness of floating promotion. */ 1543 extern const struct rank FLOAT_PROMOTION_BADNESS; 1544 /* Badness of converting a derived class pointer 1545 to a base class pointer. */ 1546 extern const struct rank BASE_PTR_CONVERSION_BADNESS; 1547 /* Badness of integral conversion. */ 1548 extern const struct rank INTEGER_CONVERSION_BADNESS; 1549 /* Badness of floating conversion. */ 1550 extern const struct rank FLOAT_CONVERSION_BADNESS; 1551 /* Badness of integer<->floating conversions. */ 1552 extern const struct rank INT_FLOAT_CONVERSION_BADNESS; 1553 /* Badness of conversion of pointer to void pointer. */ 1554 extern const struct rank VOID_PTR_CONVERSION_BADNESS; 1555 /* Badness of conversion of pointer to boolean. */ 1556 extern const struct rank BOOL_PTR_CONVERSION_BADNESS; 1557 /* Badness of converting derived to base class. */ 1558 extern const struct rank BASE_CONVERSION_BADNESS; 1559 /* Badness of converting from non-reference to reference. */ 1560 extern const struct rank REFERENCE_CONVERSION_BADNESS; 1561 /* Badness of converting integer 0 to NULL pointer. */ 1562 extern const struct rank NULL_POINTER_CONVERSION; 1563 1564 /* Non-standard conversions allowed by the debugger */ 1565 /* Converting a pointer to an int is usually OK. */ 1566 extern const struct rank NS_POINTER_CONVERSION_BADNESS; 1567 1568 1569 extern struct rank sum_ranks (struct rank a, struct rank b); 1570 extern int compare_ranks (struct rank a, struct rank b); 1571 1572 extern int compare_badness (struct badness_vector *, struct badness_vector *); 1573 1574 extern struct badness_vector *rank_function (struct type **, int, 1575 struct value **, int); 1576 1577 extern struct rank rank_one_type (struct type *, struct type *, 1578 struct value *); 1579 1580 extern void recursive_dump_type (struct type *, int); 1581 1582 extern int field_is_static (struct field *); 1583 1584 /* printcmd.c */ 1585 1586 extern void print_scalar_formatted (const void *, struct type *, 1587 const struct value_print_options *, 1588 int, struct ui_file *); 1589 1590 extern int can_dereference (struct type *); 1591 1592 extern int is_integral_type (struct type *); 1593 1594 extern int is_scalar_type_recursive (struct type *); 1595 1596 extern void maintenance_print_type (char *, int); 1597 1598 extern htab_t create_copied_types_hash (struct objfile *objfile); 1599 1600 extern struct type *copy_type_recursive (struct objfile *objfile, 1601 struct type *type, 1602 htab_t copied_types); 1603 1604 extern struct type *copy_type (const struct type *type); 1605 1606 #endif /* GDBTYPES_H */ 1607