1/* Internal type definitions for GDB. 2 3 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 4 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. 5 6 Contributed by Cygnus Support, using pieces from other GDB modules. 7 8 This file is part of GDB. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 22 23#if !defined (GDBTYPES_H) 24#define GDBTYPES_H 1 25 26#include "hashtab.h" 27 28/* Forward declarations for prototypes. */ 29struct field; 30struct block; 31 32/* Codes for `fundamental types'. This is a monstrosity based on the 33 bogus notion that there are certain compiler-independent 34 `fundamental types'. None of these is well-defined (how big is 35 FT_SHORT? Does it depend on the language? How does the 36 language-specific code know which type to correlate to FT_SHORT?) */ 37 38#define FT_VOID 0 39#define FT_BOOLEAN 1 40#define FT_CHAR 2 /* we use this for not-unsigned C/C++ chars */ 41#define FT_SIGNED_CHAR 3 /* we use this for C++ signed chars */ 42#define FT_UNSIGNED_CHAR 4 /* we use this for C/C++ unsigned chars */ 43#define FT_SHORT 5 44#define FT_SIGNED_SHORT 6 45#define FT_UNSIGNED_SHORT 7 46#define FT_INTEGER 8 47#define FT_SIGNED_INTEGER 9 48#define FT_UNSIGNED_INTEGER 10 49#define FT_LONG 11 50#define FT_SIGNED_LONG 12 51#define FT_UNSIGNED_LONG 13 52#define FT_LONG_LONG 14 53#define FT_SIGNED_LONG_LONG 15 54#define FT_UNSIGNED_LONG_LONG 16 55#define FT_FLOAT 17 56#define FT_DBL_PREC_FLOAT 18 57#define FT_EXT_PREC_FLOAT 19 58#define FT_COMPLEX 20 59#define FT_DBL_PREC_COMPLEX 21 60#define FT_EXT_PREC_COMPLEX 22 61#define FT_STRING 23 62#define FT_FIXED_DECIMAL 24 63#define FT_FLOAT_DECIMAL 25 64#define FT_BYTE 26 65#define FT_UNSIGNED_BYTE 27 66#define FT_TEMPLATE_ARG 28 67 68#define FT_NUM_MEMBERS 29 /* Highest FT_* above, plus one. */ 69 70/* Some macros for char-based bitfields. */ 71 72#define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7))) 73#define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7))) 74#define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7))) 75#define B_TYPE unsigned char 76#define B_BYTES(x) ( 1 + ((x)>>3) ) 77#define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x)) 78 79/* Different kinds of data types are distinguished by the `code' field. */ 80 81enum type_code 82 { 83 TYPE_CODE_UNDEF, /* Not used; catches errors */ 84 TYPE_CODE_PTR, /* Pointer type */ 85 86 /* Array type with lower & upper bounds. 87 88 Regardless of the language, GDB represents multidimensional 89 array types the way C does: as arrays of arrays. So an 90 instance of a GDB array type T can always be seen as a series 91 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in 92 memory. 93 94 Row-major languages like C lay out multi-dimensional arrays so 95 that incrementing the rightmost index in a subscripting 96 expression results in the smallest change in the address of the 97 element referred to. Column-major languages like Fortran lay 98 them out so that incrementing the leftmost index results in the 99 smallest change. 100 101 This means that, in column-major languages, working our way 102 from type to target type corresponds to working through indices 103 from right to left, not left to right. */ 104 TYPE_CODE_ARRAY, 105 106 TYPE_CODE_STRUCT, /* C struct or Pascal record */ 107 TYPE_CODE_UNION, /* C union or Pascal variant part */ 108 TYPE_CODE_ENUM, /* Enumeration type */ 109 TYPE_CODE_FLAGS, /* Bit flags type */ 110 TYPE_CODE_FUNC, /* Function type */ 111 TYPE_CODE_INT, /* Integer type */ 112 113 /* Floating type. This is *NOT* a complex type. Beware, there are parts 114 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */ 115 TYPE_CODE_FLT, 116 117 /* Void type. The length field specifies the length (probably always 118 one) which is used in pointer arithmetic involving pointers to 119 this type, but actually dereferencing such a pointer is invalid; 120 a void type has no length and no actual representation in memory 121 or registers. A pointer to a void type is a generic pointer. */ 122 TYPE_CODE_VOID, 123 124 TYPE_CODE_SET, /* Pascal sets */ 125 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */ 126 127 /* A string type which is like an array of character but prints 128 differently (at least for (the deleted) CHILL). It does not 129 contain a length field as Pascal strings (for many Pascals, 130 anyway) do; if we want to deal with such strings, we should use 131 a new type code. */ 132 TYPE_CODE_STRING, 133 134 /* String of bits; like TYPE_CODE_SET but prints differently (at 135 least for (the deleted) CHILL). */ 136 TYPE_CODE_BITSTRING, 137 138 /* Unknown type. The length field is valid if we were able to 139 deduce that much about the type, or 0 if we don't even know that. */ 140 TYPE_CODE_ERROR, 141 142 /* C++ */ 143 TYPE_CODE_METHOD, /* Method type */ 144 145 /* Pointer-to-member-function type. This describes how to access a 146 particular member function of a class (possibly a virtual 147 member function). The representation may vary between different 148 C++ ABIs. */ 149 TYPE_CODE_METHODPTR, 150 151 /* Pointer-to-member type. This is the offset within a class to some 152 particular data member. The only currently supported representation 153 uses an unbiased offset, with -1 representing NULL; this is used 154 by the Itanium C++ ABI (used by GCC on all platforms). */ 155 TYPE_CODE_MEMBERPTR, 156 157 TYPE_CODE_REF, /* C++ Reference types */ 158 159 TYPE_CODE_CHAR, /* *real* character type */ 160 161 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean 162 (e.g. FORTRAN "logical" used as unsigned int). */ 163 TYPE_CODE_BOOL, 164 165 /* Fortran */ 166 TYPE_CODE_COMPLEX, /* Complex float */ 167 168 TYPE_CODE_TYPEDEF, 169 TYPE_CODE_TEMPLATE, /* C++ template */ 170 TYPE_CODE_TEMPLATE_ARG, /* C++ template arg */ 171 172 TYPE_CODE_NAMESPACE /* C++ namespace. */ 173 }; 174 175/* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an 176 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct 177 "class" attribute. Perhaps we should actually have a separate TYPE_CODE 178 so that we can print "class" or "struct" depending on what the debug 179 info said. It's not clear we should bother. */ 180 181#define TYPE_CODE_CLASS TYPE_CODE_STRUCT 182 183/* Some bits for the type's flags word, and macros to test them. */ 184 185/* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the 186 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */ 187 188#define TYPE_FLAG_UNSIGNED (1 << 0) 189#define TYPE_UNSIGNED(t) (TYPE_FLAGS (t) & TYPE_FLAG_UNSIGNED) 190 191/* No sign for this type. In C++, "char", "signed char", and "unsigned 192 char" are distinct types; so we need an extra flag to indicate the 193 absence of a sign! */ 194 195#define TYPE_FLAG_NOSIGN (1 << 1) 196#define TYPE_NOSIGN(t) (TYPE_FLAGS (t) & TYPE_FLAG_NOSIGN) 197 198/* This appears in a type's flags word if it is a stub type (e.g., if 199 someone referenced a type that wasn't defined in a source file 200 via (struct sir_not_appearing_in_this_film *)). */ 201 202#define TYPE_FLAG_STUB (1 << 2) 203#define TYPE_STUB(t) (TYPE_FLAGS (t) & TYPE_FLAG_STUB) 204 205/* The target type of this type is a stub type, and this type needs to 206 be updated if it gets un-stubbed in check_typedef. 207 Used for arrays and ranges, in which TYPE_LENGTH of the array/range 208 gets set based on the TYPE_LENGTH of the target type. 209 Also, set for TYPE_CODE_TYPEDEF. */ 210 211#define TYPE_FLAG_TARGET_STUB (1 << 3) 212#define TYPE_TARGET_STUB(t) (TYPE_FLAGS (t) & TYPE_FLAG_TARGET_STUB) 213 214/* Static type. If this is set, the corresponding type had 215 * a static modifier. 216 * Note: This may be unnecessary, since static data members 217 * are indicated by other means (bitpos == -1) 218 */ 219 220#define TYPE_FLAG_STATIC (1 << 4) 221#define TYPE_STATIC(t) (TYPE_FLAGS (t) & TYPE_FLAG_STATIC) 222 223/* Constant type. If this is set, the corresponding type has a 224 * const modifier. 225 */ 226 227#define TYPE_FLAG_CONST (1 << 5) 228#define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CONST) 229 230/* Volatile type. If this is set, the corresponding type has a 231 * volatile modifier. 232 */ 233 234#define TYPE_FLAG_VOLATILE (1 << 6) 235#define TYPE_VOLATILE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_VOLATILE) 236 237 238/* This is a function type which appears to have a prototype. We need this 239 for function calls in order to tell us if it's necessary to coerce the args, 240 or to just do the standard conversions. This is used with a short field. */ 241 242#define TYPE_FLAG_PROTOTYPED (1 << 7) 243#define TYPE_PROTOTYPED(t) (TYPE_FLAGS (t) & TYPE_FLAG_PROTOTYPED) 244 245/* This flag is used to indicate that processing for this type 246 is incomplete. 247 248 (Mostly intended for HP platforms, where class methods, for 249 instance, can be encountered before their classes in the debug 250 info; the incomplete type has to be marked so that the class and 251 the method can be assigned correct types.) */ 252 253#define TYPE_FLAG_INCOMPLETE (1 << 8) 254#define TYPE_INCOMPLETE(t) (TYPE_FLAGS (t) & TYPE_FLAG_INCOMPLETE) 255 256/* Instruction-space delimited type. This is for Harvard architectures 257 which have separate instruction and data address spaces (and perhaps 258 others). 259 260 GDB usually defines a flat address space that is a superset of the 261 architecture's two (or more) address spaces, but this is an extension 262 of the architecture's model. 263 264 If TYPE_FLAG_INST is set, an object of the corresponding type 265 resides in instruction memory, even if its address (in the extended 266 flat address space) does not reflect this. 267 268 Similarly, if TYPE_FLAG_DATA is set, then an object of the 269 corresponding type resides in the data memory space, even if 270 this is not indicated by its (flat address space) address. 271 272 If neither flag is set, the default space for functions / methods 273 is instruction space, and for data objects is data memory. */ 274 275#define TYPE_FLAG_CODE_SPACE (1 << 9) 276#define TYPE_CODE_SPACE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CODE_SPACE) 277 278#define TYPE_FLAG_DATA_SPACE (1 << 10) 279#define TYPE_DATA_SPACE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_DATA_SPACE) 280 281/* FIXME drow/2002-06-03: Only used for methods, but applies as well 282 to functions. */ 283 284#define TYPE_FLAG_VARARGS (1 << 11) 285#define TYPE_VARARGS(t) (TYPE_FLAGS (t) & TYPE_FLAG_VARARGS) 286 287/* Identify a vector type. Gcc is handling this by adding an extra 288 attribute to the array type. We slurp that in as a new flag of a 289 type. This is used only in dwarf2read.c. */ 290#define TYPE_FLAG_VECTOR (1 << 12) 291#define TYPE_VECTOR(t) (TYPE_FLAGS (t) & TYPE_FLAG_VECTOR) 292 293/* Address class flags. Some environments provide for pointers whose 294 size is different from that of a normal pointer or address types 295 where the bits are interpreted differently than normal addresses. The 296 TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific 297 ways to represent these different types of address classes. */ 298#define TYPE_FLAG_ADDRESS_CLASS_1 (1 << 13) 299#define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \ 300 & TYPE_FLAG_ADDRESS_CLASS_1) 301#define TYPE_FLAG_ADDRESS_CLASS_2 (1 << 14) 302#define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \ 303 & TYPE_FLAG_ADDRESS_CLASS_2) 304#define TYPE_FLAG_ADDRESS_CLASS_ALL (TYPE_FLAG_ADDRESS_CLASS_1 \ 305 | TYPE_FLAG_ADDRESS_CLASS_2) 306#define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \ 307 & TYPE_FLAG_ADDRESS_CLASS_ALL) 308 309/* The debugging formats (especially STABS) do not contain enough information 310 to represent all Ada types---especially those whose size depends on 311 dynamic quantities. Therefore, the GNAT Ada compiler includes 312 extra information in the form of additional type definitions 313 connected by naming conventions. This flag indicates that the 314 type is an ordinary (unencoded) GDB type that has been created from 315 the necessary run-time information, and does not need further 316 interpretation. Optionally marks ordinary, fixed-size GDB type. */ 317 318#define TYPE_FLAG_FIXED_INSTANCE (1 << 15) 319 320/* This debug target supports TYPE_STUB(t). In the unsupported case we have to 321 rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE (). 322 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only guessed 323 the TYPE_STUB(t) value (see dwarfread.c). */ 324 325#define TYPE_FLAG_STUB_SUPPORTED (1 << 16) 326#define TYPE_STUB_SUPPORTED(t) (TYPE_FLAGS (t) & TYPE_FLAG_STUB_SUPPORTED) 327 328/* Not textual. By default, GDB treats all single byte integers as 329 characters (or elements of strings) unless this flag is set. */ 330 331#define TYPE_FLAG_NOTTEXT (1 << 17) 332#define TYPE_NOTTEXT(t) (TYPE_FLAGS (t) & TYPE_FLAG_NOTTEXT) 333 334/* Array bound type. */ 335enum array_bound_type 336{ 337 BOUND_SIMPLE = 0, 338 BOUND_BY_VALUE_IN_REG, 339 BOUND_BY_REF_IN_REG, 340 BOUND_BY_VALUE_ON_STACK, 341 BOUND_BY_REF_ON_STACK, 342 BOUND_CANNOT_BE_DETERMINED 343}; 344 345/* This structure is space-critical. 346 Its layout has been tweaked to reduce the space used. */ 347 348struct main_type 349{ 350 /* Code for kind of type */ 351 352 ENUM_BITFIELD(type_code) code : 8; 353 354 /* Array bounds. These fields appear at this location because 355 they pack nicely here. */ 356 357 ENUM_BITFIELD(array_bound_type) upper_bound_type : 4; 358 ENUM_BITFIELD(array_bound_type) lower_bound_type : 4; 359 360 /* Name of this type, or NULL if none. 361 362 This is used for printing only, except by poorly designed C++ code. 363 For looking up a name, look for a symbol in the VAR_DOMAIN. */ 364 365 char *name; 366 367 /* Tag name for this type, or NULL if none. This means that the 368 name of the type consists of a keyword followed by the tag name. 369 Which keyword is determined by the type code ("struct" for 370 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages 371 with this feature. 372 373 This is used for printing only, except by poorly designed C++ code. 374 For looking up a name, look for a symbol in the STRUCT_DOMAIN. 375 One more legitimate use is that if TYPE_FLAG_STUB is set, this is 376 the name to use to look for definitions in other files. */ 377 378 char *tag_name; 379 380 /* Every type is now associated with a particular objfile, and the 381 type is allocated on the objfile_obstack for that objfile. One problem 382 however, is that there are times when gdb allocates new types while 383 it is not in the process of reading symbols from a particular objfile. 384 Fortunately, these happen when the type being created is a derived 385 type of an existing type, such as in lookup_pointer_type(). So 386 we can just allocate the new type using the same objfile as the 387 existing type, but to do this we need a backpointer to the objfile 388 from the existing type. Yes this is somewhat ugly, but without 389 major overhaul of the internal type system, it can't be avoided 390 for now. */ 391 392 struct objfile *objfile; 393 394 /* For a pointer type, describes the type of object pointed to. 395 For an array type, describes the type of the elements. 396 For a function or method type, describes the type of the return value. 397 For a range type, describes the type of the full range. 398 For a complex type, describes the type of each coordinate. 399 Unused otherwise. */ 400 401 struct type *target_type; 402 403 /* Flags about this type. */ 404 405 int flags; 406 407 /* Number of fields described for this type */ 408 409 short nfields; 410 411 /* Field number of the virtual function table pointer in 412 VPTR_BASETYPE. If -1, we were unable to find the virtual 413 function table pointer in initial symbol reading, and 414 fill_in_vptr_fieldno should be called to find it if possible. 415 416 Unused if this type does not have virtual functions. */ 417 418 short vptr_fieldno; 419 420 /* For structure and union types, a description of each field. 421 For set and pascal array types, there is one "field", 422 whose type is the domain type of the set or array. 423 For range types, there are two "fields", 424 the minimum and maximum values (both inclusive). 425 For enum types, each possible value is described by one "field". 426 For a function or method type, a "field" for each parameter. 427 For C++ classes, there is one field for each base class (if it is 428 a derived class) plus one field for each class data member. Member 429 functions are recorded elsewhere. 430 431 Using a pointer to a separate array of fields 432 allows all types to have the same size, which is useful 433 because we can allocate the space for a type before 434 we know what to put in it. */ 435 436 struct field 437 { 438 union field_location 439 { 440 /* Position of this field, counting in bits from start of 441 containing structure. 442 For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB. 443 For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. 444 For a range bound or enum value, this is the value itself. */ 445 446 int bitpos; 447 448 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr 449 is the location (in the target) of the static field. 450 Otherwise, physname is the mangled label of the static field. */ 451 452 CORE_ADDR physaddr; 453 char *physname; 454 } 455 loc; 456 457 /* For a function or member type, this is 1 if the argument is marked 458 artificial. Artificial arguments should not be shown to the 459 user. */ 460 unsigned int artificial : 1; 461 462 /* This flag is zero for non-static fields, 1 for fields whose location 463 is specified by the label loc.physname, and 2 for fields whose location 464 is specified by loc.physaddr. */ 465 466 unsigned int static_kind : 2; 467 468 /* Size of this field, in bits, or zero if not packed. 469 For an unpacked field, the field's type's length 470 says how many bytes the field occupies. */ 471 472 unsigned int bitsize : 29; 473 474 /* In a struct or union type, type of this field. 475 In a function or member type, type of this argument. 476 In an array type, the domain-type of the array. */ 477 478 struct type *type; 479 480 /* Name of field, value or argument. 481 NULL for range bounds, array domains, and member function 482 arguments. */ 483 484 char *name; 485 486 } *fields; 487 488 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE 489 is the base class which defined the virtual function table pointer. 490 491 For types that are pointer to member types (TYPE_CODE_METHODPTR, 492 TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer 493 is a member of. 494 495 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate 496 type that contains the method. 497 498 Unused otherwise. */ 499 500 struct type *vptr_basetype; 501 502 /* Slot to point to additional language-specific fields of this type. */ 503 504 union type_specific 505 { 506 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to 507 cplus_struct_default, a default static instance of a struct 508 cplus_struct_type. */ 509 510 struct cplus_struct_type *cplus_stuff; 511 512 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two 513 floatformat objects that describe the floating-point value 514 that resides within the type. The first is for big endian 515 targets and the second is for little endian targets. */ 516 517 const struct floatformat **floatformat; 518 } type_specific; 519}; 520 521/* A ``struct type'' describes a particular instance of a type, with 522 some particular qualification. */ 523struct type 524{ 525 /* Type that is a pointer to this type. 526 NULL if no such pointer-to type is known yet. 527 The debugger may add the address of such a type 528 if it has to construct one later. */ 529 530 struct type *pointer_type; 531 532 /* C++: also need a reference type. */ 533 534 struct type *reference_type; 535 536 /* Variant chain. This points to a type that differs from this one only 537 in qualifiers and length. Currently, the possible qualifiers are 538 const, volatile, code-space, data-space, and address class. The 539 length may differ only when one of the address class flags are set. 540 The variants are linked in a circular ring and share MAIN_TYPE. */ 541 struct type *chain; 542 543 /* Flags specific to this instance of the type, indicating where 544 on the ring we are. */ 545 int instance_flags; 546 547 /* Length of storage for a value of this type. This is what 548 sizeof(type) would return; use it for address arithmetic, 549 memory reads and writes, etc. This size includes padding. For 550 example, an i386 extended-precision floating point value really 551 only occupies ten bytes, but most ABI's declare its size to be 552 12 bytes, to preserve alignment. A `struct type' representing 553 such a floating-point type would have a `length' value of 12, 554 even though the last two bytes are unused. 555 556 There's a bit of a host/target mess here, if you're concerned 557 about machines whose bytes aren't eight bits long, or who don't 558 have byte-addressed memory. Various places pass this to memcpy 559 and such, meaning it must be in units of host bytes. Various 560 other places expect they can calculate addresses by adding it 561 and such, meaning it must be in units of target bytes. For 562 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8 563 and TARGET_CHAR_BIT will be (say) 32, this is a problem. 564 565 One fix would be to make this field in bits (requiring that it 566 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) --- 567 the other choice would be to make it consistently in units of 568 HOST_CHAR_BIT. However, this would still fail to address 569 machines based on a ternary or decimal representation. */ 570 571 unsigned length; 572 573 /* Core type, shared by a group of qualified types. */ 574 struct main_type *main_type; 575}; 576 577#define NULL_TYPE ((struct type *) 0) 578 579/* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION 580 nodes. */ 581 582struct cplus_struct_type 583 { 584 /* Number of base classes this type derives from. The baseclasses are 585 stored in the first N_BASECLASSES fields (i.e. the `fields' field of 586 the struct type). I think only the `type' field of such a field has 587 any meaning. */ 588 589 short n_baseclasses; 590 591 /* Number of methods with unique names. All overloaded methods with 592 the same name count only once. */ 593 594 short nfn_fields; 595 596 /* Number of methods described for this type, not including the 597 methods that it derives from. */ 598 599 short nfn_fields_total; 600 601 /* The "declared_type" field contains a code saying how the 602 user really declared this type, e.g., "class s", "union s", 603 "struct s". 604 The 3 above things come out from the C++ compiler looking like classes, 605 but we keep track of the real declaration so we can give 606 the correct information on "ptype". (Note: TEMPLATE may not 607 belong in this list...) */ 608 609#define DECLARED_TYPE_CLASS 0 610#define DECLARED_TYPE_UNION 1 611#define DECLARED_TYPE_STRUCT 2 612#define DECLARED_TYPE_TEMPLATE 3 613 short declared_type; /* One of the above codes */ 614 615 /* For derived classes, the number of base classes is given by n_baseclasses 616 and virtual_field_bits is a bit vector containing one bit per base class. 617 If the base class is virtual, the corresponding bit will be set. 618 I.E, given: 619 620 class A{}; 621 class B{}; 622 class C : public B, public virtual A {}; 623 624 B is a baseclass of C; A is a virtual baseclass for C. 625 This is a C++ 2.0 language feature. */ 626 627 B_TYPE *virtual_field_bits; 628 629 /* For classes with private fields, the number of fields is given by 630 nfields and private_field_bits is a bit vector containing one bit 631 per field. 632 If the field is private, the corresponding bit will be set. */ 633 634 B_TYPE *private_field_bits; 635 636 /* For classes with protected fields, the number of fields is given by 637 nfields and protected_field_bits is a bit vector containing one bit 638 per field. 639 If the field is private, the corresponding bit will be set. */ 640 641 B_TYPE *protected_field_bits; 642 643 /* for classes with fields to be ignored, either this is optimized out 644 or this field has length 0 */ 645 646 B_TYPE *ignore_field_bits; 647 648 /* For classes, structures, and unions, a description of each field, 649 which consists of an overloaded name, followed by the types of 650 arguments that the method expects, and then the name after it 651 has been renamed to make it distinct. 652 653 fn_fieldlists points to an array of nfn_fields of these. */ 654 655 struct fn_fieldlist 656 { 657 658 /* The overloaded name. */ 659 660 char *name; 661 662 /* The number of methods with this name. */ 663 664 int length; 665 666 /* The list of methods. */ 667 668 struct fn_field 669 { 670 671 /* If is_stub is clear, this is the mangled name which we can 672 look up to find the address of the method (FIXME: it would 673 be cleaner to have a pointer to the struct symbol here 674 instead). */ 675 676 /* If is_stub is set, this is the portion of the mangled 677 name which specifies the arguments. For example, "ii", 678 if there are two int arguments, or "" if there are no 679 arguments. See gdb_mangle_name for the conversion from this 680 format to the one used if is_stub is clear. */ 681 682 char *physname; 683 684 /* The function type for the method. 685 (This comment used to say "The return value of the method", 686 but that's wrong. The function type 687 is expected here, i.e. something with TYPE_CODE_FUNC, 688 and *not* the return-value type). */ 689 690 struct type *type; 691 692 /* For virtual functions. 693 First baseclass that defines this virtual function. */ 694 695 struct type *fcontext; 696 697 /* Attributes. */ 698 699 unsigned int is_const:1; 700 unsigned int is_volatile:1; 701 unsigned int is_private:1; 702 unsigned int is_protected:1; 703 unsigned int is_public:1; 704 unsigned int is_abstract:1; 705 unsigned int is_static:1; 706 unsigned int is_final:1; 707 unsigned int is_synchronized:1; 708 unsigned int is_native:1; 709 unsigned int is_artificial:1; 710 711 /* A stub method only has some fields valid (but they are enough 712 to reconstruct the rest of the fields). */ 713 unsigned int is_stub:1; 714 715 /* C++ method that is inlined */ 716 unsigned int is_inlined:1; 717 718 /* Unused. */ 719 unsigned int dummy:3; 720 721 /* Index into that baseclass's virtual function table, 722 minus 2; else if static: VOFFSET_STATIC; else: 0. */ 723 724 unsigned int voffset:16; 725 726#define VOFFSET_STATIC 1 727 728 } 729 *fn_fields; 730 731 } 732 *fn_fieldlists; 733 734 /* If this "struct type" describes a template, then it 735 * has arguments. "template_args" points to an array of 736 * template arg descriptors, of length "ntemplate_args". 737 * The only real information in each of these template arg descriptors 738 * is a name. "type" will typically just point to a "struct type" with 739 * the placeholder TYPE_CODE_TEMPLATE_ARG type. 740 */ 741 short ntemplate_args; 742 struct template_arg 743 { 744 char *name; 745 struct type *type; 746 } 747 *template_args; 748 749 /* If this "struct type" describes a template, it has a list 750 * of instantiations. "instantiations" is a pointer to an array 751 * of type's, one representing each instantiation. There 752 * are "ninstantiations" elements in this array. 753 */ 754 short ninstantiations; 755 struct type **instantiations; 756 757 /* The following points to information relevant to the runtime model 758 * of the compiler. 759 * Currently being used only for HP's ANSI C++ compiler. 760 * (This type may have to be changed/enhanced for other compilers.) 761 * 762 * RUNTIME_PTR is NULL if there is no runtime information (currently 763 * this means the type was not compiled by HP aCC). 764 * 765 * Fields in structure pointed to: 766 * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present 767 * 768 * ->PRIMARY_BASE points to the first non-virtual base class that has 769 * a virtual table. 770 * 771 * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that 772 * point to the type information for all virtual bases among this type's 773 * ancestors. 774 */ 775 struct runtime_info 776 { 777 short has_vtable; 778 struct type *primary_base; 779 struct type **virtual_base_list; 780 } 781 *runtime_ptr; 782 783 /* Pointer to information about enclosing scope, if this is a 784 * local type. If it is not a local type, this is NULL 785 */ 786 struct local_type_info 787 { 788 char *file; 789 int line; 790 } 791 *localtype_ptr; 792 }; 793 794/* Struct used in computing virtual base list */ 795struct vbase 796 { 797 struct type *vbasetype; /* pointer to virtual base */ 798 struct vbase *next; /* next in chain */ 799 }; 800 801/* Struct used for ranking a function for overload resolution */ 802struct badness_vector 803 { 804 int length; 805 int *rank; 806 }; 807 808/* The default value of TYPE_CPLUS_SPECIFIC(T) points to the 809 this shared static structure. */ 810 811extern const struct cplus_struct_type cplus_struct_default; 812 813extern void allocate_cplus_struct_type (struct type *); 814 815#define INIT_CPLUS_SPECIFIC(type) \ 816 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default) 817#define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type) 818#define HAVE_CPLUS_STRUCT(type) \ 819 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default) 820 821#define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags 822#define TYPE_MAIN_TYPE(thistype) (thistype)->main_type 823#define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name 824#define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name 825#define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type 826#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type 827#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type 828#define TYPE_CHAIN(thistype) (thistype)->chain 829/* Note that if thistype is a TYPEDEF type, you have to call check_typedef. 830 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type, 831 so you only have to call check_typedef once. Since allocate_value 832 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */ 833#define TYPE_LENGTH(thistype) (thistype)->length 834#define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile 835#define TYPE_FLAGS(thistype) TYPE_MAIN_TYPE(thistype)->flags 836/* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real 837 type, you need to do TYPE_CODE (check_type (this_type)). */ 838#define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code 839#define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields 840#define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields 841#define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args 842#define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations 843 844#define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0) 845#define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0) 846#define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1) 847 848/* Moto-specific stuff for FORTRAN arrays */ 849 850#define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) \ 851 TYPE_MAIN_TYPE(thistype)->upper_bound_type 852#define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) \ 853 TYPE_MAIN_TYPE(thistype)->lower_bound_type 854 855#define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \ 856 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1)) 857 858#define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \ 859 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0)) 860 861/* C++ */ 862 863#define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype 864#define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype 865#define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno 866#define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields 867#define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields 868#define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total 869#define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args 870#define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations 871#define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type 872#define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific 873#define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff 874#define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat 875#define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type 876#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses 877#define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name 878#define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index) 879#define BASETYPE_VIA_PUBLIC(thistype, index) \ 880 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index))) 881 882#define BASETYPE_VIA_VIRTUAL(thistype, index) \ 883 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ 884 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))) 885 886#define FIELD_TYPE(thisfld) ((thisfld).type) 887#define FIELD_NAME(thisfld) ((thisfld).name) 888#define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos) 889#define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial) 890#define FIELD_BITSIZE(thisfld) ((thisfld).bitsize) 891#define FIELD_STATIC_KIND(thisfld) ((thisfld).static_kind) 892#define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname) 893#define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr) 894#define SET_FIELD_PHYSNAME(thisfld, name) \ 895 ((thisfld).static_kind = 1, FIELD_PHYSNAME(thisfld) = (name)) 896#define SET_FIELD_PHYSADDR(thisfld, name) \ 897 ((thisfld).static_kind = 2, FIELD_PHYSADDR(thisfld) = (name)) 898#define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n] 899#define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n)) 900#define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n)) 901#define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n)) 902#define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n)) 903#define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n)) 904#define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0) 905#define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n] 906#define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n] 907 908#define TYPE_FIELD_PRIVATE_BITS(thistype) \ 909 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits 910#define TYPE_FIELD_PROTECTED_BITS(thistype) \ 911 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits 912#define TYPE_FIELD_IGNORE_BITS(thistype) \ 913 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits 914#define TYPE_FIELD_VIRTUAL_BITS(thistype) \ 915 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits 916#define SET_TYPE_FIELD_PRIVATE(thistype, n) \ 917 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)) 918#define SET_TYPE_FIELD_PROTECTED(thistype, n) \ 919 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)) 920#define SET_TYPE_FIELD_IGNORE(thistype, n) \ 921 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)) 922#define SET_TYPE_FIELD_VIRTUAL(thistype, n) \ 923 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)) 924#define TYPE_FIELD_PRIVATE(thistype, n) \ 925 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \ 926 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))) 927#define TYPE_FIELD_PROTECTED(thistype, n) \ 928 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \ 929 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))) 930#define TYPE_FIELD_IGNORE(thistype, n) \ 931 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \ 932 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))) 933#define TYPE_FIELD_VIRTUAL(thistype, n) \ 934 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ 935 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))) 936 937#define TYPE_FIELD_STATIC(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].static_kind != 0) 938#define TYPE_FIELD_STATIC_KIND(thistype, n) TYPE_MAIN_TYPE (thistype)->fields[n].static_kind 939#define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].static_kind == 2) 940#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n)) 941#define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n)) 942 943#define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists 944#define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n] 945#define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields 946#define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name 947#define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length 948 949#define TYPE_FN_FIELD(thisfn, n) (thisfn)[n] 950#define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname 951#define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type 952#define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type) 953#define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const) 954#define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile) 955#define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private) 956#define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected) 957#define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public) 958#define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static) 959#define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final) 960#define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized) 961#define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native) 962#define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial) 963#define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract) 964#define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub) 965#define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined) 966#define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext) 967#define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2) 968#define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1) 969#define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC) 970 971#define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr) 972#define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable) 973#define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype)) 974#define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base) 975#define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list) 976 977#define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr) 978#define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file) 979#define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line) 980 981#define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \ 982 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \ 983 (TYPE_NFIELDS (thistype) == 0) && \ 984 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)) && \ 985 (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype))) 986 987struct builtin_type 988{ 989 /* Address/pointer types. */ 990 991 /* `pointer to data' type. Some target platforms use an implicitly 992 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */ 993 struct type *builtin_data_ptr; 994 995 /* `pointer to function (returning void)' type. Harvard 996 architectures mean that ABI function and code pointers are not 997 interconvertible. Similarly, since ANSI, C standards have 998 explicitly said that pointers to functions and pointers to data 999 are not interconvertible --- that is, you can't cast a function 1000 pointer to void * and back, and expect to get the same value. 1001 However, all function pointer types are interconvertible, so void 1002 (*) () can server as a generic function pointer. */ 1003 struct type *builtin_func_ptr; 1004 1005 /* The target CPU's address type. This is the ISA address size. */ 1006 struct type *builtin_core_addr; 1007 1008 1009 /* Types used for symbols with no debug information. */ 1010 struct type *nodebug_text_symbol; 1011 struct type *nodebug_data_symbol; 1012 struct type *nodebug_unknown_symbol; 1013 struct type *nodebug_tls_symbol; 1014 1015 1016 /* Integral types. */ 1017 1018 /* We use these for the '/c' print format, because c_char is just a 1019 one-byte integral type, which languages less laid back than C 1020 will print as ... well, a one-byte integral type. */ 1021 struct type *builtin_true_char; 1022 struct type *builtin_true_unsigned_char; 1023 1024 /* Implicit size/sign (based on the the architecture's ABI). */ 1025 struct type *builtin_void; 1026 struct type *builtin_char; 1027 struct type *builtin_short; 1028 struct type *builtin_int; 1029 struct type *builtin_long; 1030 struct type *builtin_signed_char; 1031 struct type *builtin_unsigned_char; 1032 struct type *builtin_unsigned_short; 1033 struct type *builtin_unsigned_int; 1034 struct type *builtin_unsigned_long; 1035 struct type *builtin_float; 1036 struct type *builtin_double; 1037 struct type *builtin_long_double; 1038 struct type *builtin_complex; 1039 struct type *builtin_double_complex; 1040 struct type *builtin_string; 1041 struct type *builtin_bool; 1042 struct type *builtin_long_long; 1043 struct type *builtin_unsigned_long_long; 1044}; 1045 1046/* Return the type table for the specified architecture. */ 1047extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch); 1048 1049/* Compatibility macros to access types for the current architecture. */ 1050#define builtin_type_void_data_ptr \ 1051 (builtin_type (current_gdbarch)->builtin_data_ptr) 1052#define builtin_type_void_func_ptr \ 1053 (builtin_type (current_gdbarch)->builtin_func_ptr) 1054#define builtin_type_CORE_ADDR \ 1055 (builtin_type (current_gdbarch)->builtin_core_addr) 1056#define builtin_type_true_char \ 1057 (builtin_type (current_gdbarch)->builtin_true_char) 1058#define builtin_type_void \ 1059 (builtin_type (current_gdbarch)->builtin_void) 1060#define builtin_type_char \ 1061 (builtin_type (current_gdbarch)->builtin_char) 1062#define builtin_type_short \ 1063 (builtin_type (current_gdbarch)->builtin_short) 1064#define builtin_type_int \ 1065 (builtin_type (current_gdbarch)->builtin_int) 1066#define builtin_type_long \ 1067 (builtin_type (current_gdbarch)->builtin_long) 1068#define builtin_type_signed_char \ 1069 (builtin_type (current_gdbarch)->builtin_signed_char) 1070#define builtin_type_unsigned_char \ 1071 (builtin_type (current_gdbarch)->builtin_unsigned_char) 1072#define builtin_type_unsigned_short \ 1073 (builtin_type (current_gdbarch)->builtin_unsigned_short) 1074#define builtin_type_unsigned_int \ 1075 (builtin_type (current_gdbarch)->builtin_unsigned_int) 1076#define builtin_type_unsigned_long \ 1077 (builtin_type (current_gdbarch)->builtin_unsigned_long) 1078#define builtin_type_float \ 1079 (builtin_type (current_gdbarch)->builtin_float) 1080#define builtin_type_double \ 1081 (builtin_type (current_gdbarch)->builtin_double) 1082#define builtin_type_long_double \ 1083 (builtin_type (current_gdbarch)->builtin_long_double) 1084#define builtin_type_complex \ 1085 (builtin_type (current_gdbarch)->builtin_complex) 1086#define builtin_type_double_complex \ 1087 (builtin_type (current_gdbarch)->builtin_double_complex) 1088#define builtin_type_string \ 1089 (builtin_type (current_gdbarch)->builtin_string) 1090#define builtin_type_bool \ 1091 (builtin_type (current_gdbarch)->builtin_bool) 1092#define builtin_type_long_long \ 1093 (builtin_type (current_gdbarch)->builtin_long_long) 1094#define builtin_type_unsigned_long_long \ 1095 (builtin_type (current_gdbarch)->builtin_unsigned_long_long) 1096 1097 1098/* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0" 1099 is for when an architecture needs to describe a register that has 1100 no size. */ 1101extern struct type *builtin_type_int0; 1102extern struct type *builtin_type_int8; 1103extern struct type *builtin_type_uint8; 1104extern struct type *builtin_type_int16; 1105extern struct type *builtin_type_uint16; 1106extern struct type *builtin_type_int32; 1107extern struct type *builtin_type_uint32; 1108extern struct type *builtin_type_int64; 1109extern struct type *builtin_type_uint64; 1110extern struct type *builtin_type_int128; 1111extern struct type *builtin_type_uint128; 1112 1113/* Explicit floating-point formats. See "floatformat.h". */ 1114extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN]; 1115extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN]; 1116extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN]; 1117extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN]; 1118extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN]; 1119extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN]; 1120extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN]; 1121extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN]; 1122extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN]; 1123extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN]; 1124 1125extern struct type *builtin_type_ieee_single; 1126extern struct type *builtin_type_ieee_double; 1127extern struct type *builtin_type_i387_ext; 1128extern struct type *builtin_type_m68881_ext; 1129extern struct type *builtin_type_arm_ext; 1130extern struct type *builtin_type_ia64_spill; 1131extern struct type *builtin_type_ia64_quad; 1132 1133/* This type represents a type that was unrecognized in symbol 1134 read-in. */ 1135 1136extern struct type *builtin_type_error; 1137 1138 1139/* Modula-2 types */ 1140 1141struct builtin_m2_type 1142{ 1143 struct type *builtin_char; 1144 struct type *builtin_int; 1145 struct type *builtin_card; 1146 struct type *builtin_real; 1147 struct type *builtin_bool; 1148}; 1149 1150/* Return the Modula-2 type table for the specified architecture. */ 1151extern const struct builtin_m2_type *builtin_m2_type (struct gdbarch *gdbarch); 1152 1153/* Compatibility macros to access types for the current architecture. */ 1154#define builtin_type_m2_char \ 1155 (builtin_m2_type (current_gdbarch)->builtin_char) 1156#define builtin_type_m2_int \ 1157 (builtin_m2_type (current_gdbarch)->builtin_int) 1158#define builtin_type_m2_card \ 1159 (builtin_m2_type (current_gdbarch)->builtin_card) 1160#define builtin_type_m2_real \ 1161 (builtin_m2_type (current_gdbarch)->builtin_real) 1162#define builtin_type_m2_bool \ 1163 (builtin_m2_type (current_gdbarch)->builtin_bool) 1164 1165 1166/* Fortran (F77) types */ 1167 1168struct builtin_f_type 1169{ 1170 struct type *builtin_character; 1171 struct type *builtin_integer; 1172 struct type *builtin_integer_s2; 1173 struct type *builtin_logical; 1174 struct type *builtin_logical_s1; 1175 struct type *builtin_logical_s2; 1176 struct type *builtin_real; 1177 struct type *builtin_real_s8; 1178 struct type *builtin_real_s16; 1179 struct type *builtin_complex_s8; 1180 struct type *builtin_complex_s16; 1181 struct type *builtin_complex_s32; 1182 struct type *builtin_void; 1183}; 1184 1185/* Return the Fortran type table for the specified architecture. */ 1186extern const struct builtin_f_type *builtin_f_type (struct gdbarch *gdbarch); 1187 1188/* Compatibility macros to access types for the current architecture. */ 1189#define builtin_type_f_character \ 1190 (builtin_f_type (current_gdbarch)->builtin_character) 1191#define builtin_type_f_integer \ 1192 (builtin_f_type (current_gdbarch)->builtin_integer) 1193#define builtin_type_f_integer_s2 \ 1194 (builtin_f_type (current_gdbarch)->builtin_integer_s2) 1195#define builtin_type_f_logical \ 1196 (builtin_f_type (current_gdbarch)->builtin_logical) 1197#define builtin_type_f_logical_s1 \ 1198 (builtin_f_type (current_gdbarch)->builtin_logical_s1) 1199#define builtin_type_f_logical_s2 \ 1200 (builtin_f_type (current_gdbarch)->builtin_logical_s2) 1201#define builtin_type_f_real \ 1202 (builtin_f_type (current_gdbarch)->builtin_real) 1203#define builtin_type_f_real_s8 \ 1204 (builtin_f_type (current_gdbarch)->builtin_real_s8) 1205#define builtin_type_f_real_s16 \ 1206 (builtin_f_type (current_gdbarch)->builtin_real_s16) 1207#define builtin_type_f_complex_s8 \ 1208 (builtin_f_type (current_gdbarch)->builtin_complex_s8) 1209#define builtin_type_f_complex_s16 \ 1210 (builtin_f_type (current_gdbarch)->builtin_complex_s16) 1211#define builtin_type_f_complex_s32 \ 1212 (builtin_f_type (current_gdbarch)->builtin_complex_s32) 1213#define builtin_type_f_void \ 1214 (builtin_f_type (current_gdbarch)->builtin_void) 1215 1216 1217/* RTTI for C++ */ 1218/* extern struct type *builtin_type_cxx_typeinfo; */ 1219 1220/* Maximum and minimum values of built-in types */ 1221 1222#define MAX_OF_TYPE(t) \ 1223 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \ 1224 : MAX_OF_SIZE(TYPE_LENGTH(t))) 1225 1226#define MIN_OF_TYPE(t) \ 1227 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \ 1228 : MIN_OF_SIZE(TYPE_LENGTH(t))) 1229 1230/* Allocate space for storing data associated with a particular type. 1231 We ensure that the space is allocated using the same mechanism that 1232 was used to allocate the space for the type structure itself. I.E. 1233 if the type is on an objfile's objfile_obstack, then the space for data 1234 associated with that type will also be allocated on the objfile_obstack. 1235 If the type is not associated with any particular objfile (such as 1236 builtin types), then the data space will be allocated with xmalloc, 1237 the same as for the type structure. */ 1238 1239#define TYPE_ALLOC(t,size) \ 1240 (TYPE_OBJFILE (t) != NULL \ 1241 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \ 1242 : xmalloc (size)) 1243 1244#define TYPE_ZALLOC(t,size) \ 1245 (TYPE_OBJFILE (t) != NULL \ 1246 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \ 1247 0, size) \ 1248 : xzalloc (size)) 1249 1250extern struct type *alloc_type (struct objfile *); 1251 1252extern struct type *init_type (enum type_code, int, int, char *, 1253 struct objfile *); 1254 1255/* Helper functions to construct a struct or record type. An 1256 initially empty type is created using init_composite_type(). 1257 Fields are then added using append_struct_type_field(). A union 1258 type has its size set to the largest field. A struct type has each 1259 field packed against the previous. */ 1260 1261extern struct type *init_composite_type (char *name, enum type_code code); 1262extern void append_composite_type_field (struct type *t, char *name, 1263 struct type *field); 1264 1265/* Helper functions to construct a bit flags type. An initially empty 1266 type is created using init_flag_type(). Flags are then added using 1267 append_flag_type_flag(). */ 1268extern struct type *init_flags_type (char *name, int length); 1269extern void append_flags_type_flag (struct type *type, int bitpos, char *name); 1270 1271extern void make_vector_type (struct type *array_type); 1272extern struct type *init_vector_type (struct type *elt_type, int n); 1273 1274extern struct type *lookup_reference_type (struct type *); 1275 1276extern struct type *make_reference_type (struct type *, struct type **); 1277 1278extern struct type *make_cv_type (int, int, struct type *, struct type **); 1279 1280extern void replace_type (struct type *, struct type *); 1281 1282extern int address_space_name_to_int (char *); 1283 1284extern const char *address_space_int_to_name (int); 1285 1286extern struct type *make_type_with_address_space (struct type *type, 1287 int space_identifier); 1288 1289extern struct type *lookup_memberptr_type (struct type *, struct type *); 1290 1291extern struct type *lookup_methodptr_type (struct type *); 1292 1293extern void smash_to_method_type (struct type *type, struct type *domain, 1294 struct type *to_type, struct field *args, 1295 int nargs, int varargs); 1296 1297extern void smash_to_memberptr_type (struct type *, struct type *, 1298 struct type *); 1299 1300extern struct type *allocate_stub_method (struct type *); 1301 1302extern char *type_name_no_tag (const struct type *); 1303 1304extern struct type *lookup_struct_elt_type (struct type *, char *, int); 1305 1306extern struct type *make_pointer_type (struct type *, struct type **); 1307 1308extern struct type *lookup_pointer_type (struct type *); 1309 1310extern struct type *make_function_type (struct type *, struct type **); 1311 1312extern struct type *lookup_function_type (struct type *); 1313 1314extern struct type *create_range_type (struct type *, struct type *, int, 1315 int); 1316 1317extern struct type *create_array_type (struct type *, struct type *, 1318 struct type *); 1319 1320extern struct type *create_string_type (struct type *, struct type *); 1321 1322extern struct type *create_set_type (struct type *, struct type *); 1323 1324extern struct type *lookup_unsigned_typename (char *); 1325 1326extern struct type *lookup_signed_typename (char *); 1327 1328extern struct type *check_typedef (struct type *); 1329 1330#define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE) 1331 1332extern void check_stub_method_group (struct type *, int); 1333 1334extern char *gdb_mangle_name (struct type *, int, int); 1335 1336extern struct type *lookup_typename (char *, struct block *, int); 1337 1338extern struct type *lookup_template_type (char *, struct type *, 1339 struct block *); 1340 1341extern struct type *lookup_fundamental_type (struct objfile *, int); 1342 1343extern void fill_in_vptr_fieldno (struct type *); 1344 1345extern int get_destructor_fn_field (struct type *, int *, int *); 1346 1347extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *); 1348 1349extern int is_ancestor (struct type *, struct type *); 1350 1351extern int has_vtable (struct type *); 1352 1353extern struct type *primary_base_class (struct type *); 1354 1355extern int virtual_base_list_length (struct type *); 1356extern int virtual_base_list_length_skip_primaries (struct type *); 1357 1358extern int virtual_base_index (struct type *, struct type *); 1359extern int virtual_base_index_skip_primaries (struct type *, struct type *); 1360 1361 1362extern int class_index_in_primary_list (struct type *); 1363 1364extern int count_virtual_fns (struct type *); 1365 1366/* Constants for HP/Taligent ANSI C++ runtime model */ 1367 1368/* Where virtual function entries begin in the 1369 * virtual table, in the non-RRBC vtable format. 1370 * First 4 are the metavtable pointer, top offset, 1371 * typeinfo pointer, and dup base info pointer */ 1372#define HP_ACC_VFUNC_START 4 1373 1374/* (Negative) Offset where virtual base offset entries begin 1375 * in the virtual table. Skips over metavtable pointer and 1376 * the self-offset entry. 1377 * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets 1378 * appear before the address point of the vtable (the slot 1379 * pointed to by the object's vtable pointer), i.e. at lower 1380 * addresses than the vtable pointer. */ 1381#define HP_ACC_VBASE_START 2 1382 1383/* (Positive) Offset where the pointer to the typeinfo 1384 * object is present in the virtual table */ 1385#define HP_ACC_TYPEINFO_OFFSET 2 1386 1387/* (Positive) Offset where the ``top offset'' entry of 1388 * the virtual table is */ 1389#define HP_ACC_TOP_OFFSET_OFFSET 1 1390 1391/* Overload resolution */ 1392 1393#define LENGTH_MATCH(bv) ((bv)->rank[0]) 1394 1395/* Badness if parameter list length doesn't match arg list length */ 1396#define LENGTH_MISMATCH_BADNESS 100 1397/* Dummy badness value for nonexistent parameter positions */ 1398#define TOO_FEW_PARAMS_BADNESS 100 1399/* Badness if no conversion among types */ 1400#define INCOMPATIBLE_TYPE_BADNESS 100 1401 1402/* Badness of integral promotion */ 1403#define INTEGER_PROMOTION_BADNESS 1 1404/* Badness of floating promotion */ 1405#define FLOAT_PROMOTION_BADNESS 1 1406/* Badness of integral conversion */ 1407#define INTEGER_CONVERSION_BADNESS 2 1408/* Badness of floating conversion */ 1409#define FLOAT_CONVERSION_BADNESS 2 1410/* Badness of integer<->floating conversions */ 1411#define INT_FLOAT_CONVERSION_BADNESS 2 1412/* Badness of converting to a boolean */ 1413#define BOOLEAN_CONVERSION_BADNESS 2 1414/* Badness of pointer conversion */ 1415#define POINTER_CONVERSION_BADNESS 2 1416/* Badness of conversion of pointer to void pointer */ 1417#define VOID_PTR_CONVERSION_BADNESS 2 1418/* Badness of converting derived to base class */ 1419#define BASE_CONVERSION_BADNESS 2 1420/* Badness of converting from non-reference to reference */ 1421#define REFERENCE_CONVERSION_BADNESS 2 1422 1423/* Non-standard conversions allowed by the debugger */ 1424/* Converting a pointer to an int is usually OK */ 1425#define NS_POINTER_CONVERSION_BADNESS 10 1426 1427 1428extern int compare_badness (struct badness_vector *, struct badness_vector *); 1429 1430extern struct badness_vector *rank_function (struct type **, int, 1431 struct type **, int); 1432 1433extern int rank_one_type (struct type *, struct type *); 1434 1435extern void recursive_dump_type (struct type *, int); 1436 1437/* printcmd.c */ 1438 1439extern void print_scalar_formatted (const void *, struct type *, int, int, 1440 struct ui_file *); 1441 1442extern int can_dereference (struct type *); 1443 1444extern int is_integral_type (struct type *); 1445 1446extern void maintenance_print_type (char *, int); 1447 1448extern htab_t create_copied_types_hash (struct objfile *objfile); 1449 1450extern struct type *copy_type_recursive (struct objfile *objfile, 1451 struct type *type, 1452 htab_t copied_types); 1453 1454#endif /* GDBTYPES_H */ 1455