1/* Internal type definitions for GDB. 2 3 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 4 2001, 2002, 2003, 2004 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 2 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, write to the Free Software 22 Foundation, Inc., 59 Temple Place - Suite 330, 23 Boston, MA 02111-1307, USA. */ 24 25#if !defined (GDBTYPES_H) 26#define GDBTYPES_H 1 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 TYPE_CODE_ARRAY, /* Array type with lower & upper bounds. */ 86 TYPE_CODE_STRUCT, /* C struct or Pascal record */ 87 TYPE_CODE_UNION, /* C union or Pascal variant part */ 88 TYPE_CODE_ENUM, /* Enumeration type */ 89 TYPE_CODE_FUNC, /* Function type */ 90 TYPE_CODE_INT, /* Integer type */ 91 92 /* Floating type. This is *NOT* a complex type. Beware, there are parts 93 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */ 94 TYPE_CODE_FLT, 95 96 /* Void type. The length field specifies the length (probably always 97 one) which is used in pointer arithmetic involving pointers to 98 this type, but actually dereferencing such a pointer is invalid; 99 a void type has no length and no actual representation in memory 100 or registers. A pointer to a void type is a generic pointer. */ 101 TYPE_CODE_VOID, 102 103 TYPE_CODE_SET, /* Pascal sets */ 104 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */ 105 106 /* A string type which is like an array of character but prints 107 differently (at least for (the deleted) CHILL). It does not 108 contain a length field as Pascal strings (for many Pascals, 109 anyway) do; if we want to deal with such strings, we should use 110 a new type code. */ 111 TYPE_CODE_STRING, 112 113 /* String of bits; like TYPE_CODE_SET but prints differently (at 114 least for (the deleted) CHILL). */ 115 TYPE_CODE_BITSTRING, 116 117 /* Unknown type. The length field is valid if we were able to 118 deduce that much about the type, or 0 if we don't even know that. */ 119 TYPE_CODE_ERROR, 120 121 /* C++ */ 122 TYPE_CODE_MEMBER, /* Member type */ 123 TYPE_CODE_METHOD, /* Method type */ 124 TYPE_CODE_REF, /* C++ Reference types */ 125 126 TYPE_CODE_CHAR, /* *real* character type */ 127 128 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean 129 (e.g. FORTRAN "logical" used as unsigned int). */ 130 TYPE_CODE_BOOL, 131 132 /* Fortran */ 133 TYPE_CODE_COMPLEX, /* Complex float */ 134 135 TYPE_CODE_TYPEDEF, 136 TYPE_CODE_TEMPLATE, /* C++ template */ 137 TYPE_CODE_TEMPLATE_ARG, /* C++ template arg */ 138 139 TYPE_CODE_NAMESPACE /* C++ namespace. */ 140 }; 141 142/* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an 143 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct 144 "class" attribute. Perhaps we should actually have a separate TYPE_CODE 145 so that we can print "class" or "struct" depending on what the debug 146 info said. It's not clear we should bother. */ 147 148#define TYPE_CODE_CLASS TYPE_CODE_STRUCT 149 150/* Some bits for the type's flags word, and macros to test them. */ 151 152/* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the 153 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */ 154 155#define TYPE_FLAG_UNSIGNED (1 << 0) 156#define TYPE_UNSIGNED(t) (TYPE_FLAGS (t) & TYPE_FLAG_UNSIGNED) 157 158/* No sign for this type. In C++, "char", "signed char", and "unsigned 159 char" are distinct types; so we need an extra flag to indicate the 160 absence of a sign! */ 161 162#define TYPE_FLAG_NOSIGN (1 << 1) 163#define TYPE_NOSIGN(t) (TYPE_FLAGS (t) & TYPE_FLAG_NOSIGN) 164 165/* This appears in a type's flags word if it is a stub type (e.g., if 166 someone referenced a type that wasn't defined in a source file 167 via (struct sir_not_appearing_in_this_film *)). */ 168 169#define TYPE_FLAG_STUB (1 << 2) 170#define TYPE_STUB(t) (TYPE_FLAGS (t) & TYPE_FLAG_STUB) 171 172/* The target type of this type is a stub type, and this type needs to 173 be updated if it gets un-stubbed in check_typedef. 174 Used for arrays and ranges, in which TYPE_LENGTH of the array/range 175 gets set based on the TYPE_LENGTH of the target type. 176 Also, set for TYPE_CODE_TYPEDEF. */ 177 178#define TYPE_FLAG_TARGET_STUB (1 << 3) 179#define TYPE_TARGET_STUB(t) (TYPE_FLAGS (t) & TYPE_FLAG_TARGET_STUB) 180 181/* Static type. If this is set, the corresponding type had 182 * a static modifier. 183 * Note: This may be unnecessary, since static data members 184 * are indicated by other means (bitpos == -1) 185 */ 186 187#define TYPE_FLAG_STATIC (1 << 4) 188#define TYPE_STATIC(t) (TYPE_FLAGS (t) & TYPE_FLAG_STATIC) 189 190/* Constant type. If this is set, the corresponding type has a 191 * const modifier. 192 */ 193 194#define TYPE_FLAG_CONST (1 << 5) 195#define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CONST) 196 197/* Volatile type. If this is set, the corresponding type has a 198 * volatile modifier. 199 */ 200 201#define TYPE_FLAG_VOLATILE (1 << 6) 202#define TYPE_VOLATILE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_VOLATILE) 203 204 205/* This is a function type which appears to have a prototype. We need this 206 for function calls in order to tell us if it's necessary to coerce the args, 207 or to just do the standard conversions. This is used with a short field. */ 208 209#define TYPE_FLAG_PROTOTYPED (1 << 7) 210#define TYPE_PROTOTYPED(t) (TYPE_FLAGS (t) & TYPE_FLAG_PROTOTYPED) 211 212/* This flag is used to indicate that processing for this type 213 is incomplete. 214 215 (Mostly intended for HP platforms, where class methods, for 216 instance, can be encountered before their classes in the debug 217 info; the incomplete type has to be marked so that the class and 218 the method can be assigned correct types.) */ 219 220#define TYPE_FLAG_INCOMPLETE (1 << 8) 221#define TYPE_INCOMPLETE(t) (TYPE_FLAGS (t) & TYPE_FLAG_INCOMPLETE) 222 223/* Instruction-space delimited type. This is for Harvard architectures 224 which have separate instruction and data address spaces (and perhaps 225 others). 226 227 GDB usually defines a flat address space that is a superset of the 228 architecture's two (or more) address spaces, but this is an extension 229 of the architecture's model. 230 231 If TYPE_FLAG_INST is set, an object of the corresponding type 232 resides in instruction memory, even if its address (in the extended 233 flat address space) does not reflect this. 234 235 Similarly, if TYPE_FLAG_DATA is set, then an object of the 236 corresponding type resides in the data memory space, even if 237 this is not indicated by its (flat address space) address. 238 239 If neither flag is set, the default space for functions / methods 240 is instruction space, and for data objects is data memory. */ 241 242#define TYPE_FLAG_CODE_SPACE (1 << 9) 243#define TYPE_CODE_SPACE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CODE_SPACE) 244 245#define TYPE_FLAG_DATA_SPACE (1 << 10) 246#define TYPE_DATA_SPACE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_DATA_SPACE) 247 248/* FIXME drow/2002-06-03: Only used for methods, but applies as well 249 to functions. */ 250 251#define TYPE_FLAG_VARARGS (1 << 11) 252#define TYPE_VARARGS(t) (TYPE_FLAGS (t) & TYPE_FLAG_VARARGS) 253 254/* Identify a vector type. Gcc is handling this by adding an extra 255 attribute to the array type. We slurp that in as a new flag of a 256 type. This is used only in dwarf2read.c. */ 257#define TYPE_FLAG_VECTOR (1 << 12) 258#define TYPE_VECTOR(t) (TYPE_FLAGS (t) & TYPE_FLAG_VECTOR) 259 260/* Address class flags. Some environments provide for pointers whose 261 size is different from that of a normal pointer or address types 262 where the bits are interpreted differently than normal addresses. The 263 TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific 264 ways to represent these different types of address classes. */ 265#define TYPE_FLAG_ADDRESS_CLASS_1 (1 << 13) 266#define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \ 267 & TYPE_FLAG_ADDRESS_CLASS_1) 268#define TYPE_FLAG_ADDRESS_CLASS_2 (1 << 14) 269#define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \ 270 & TYPE_FLAG_ADDRESS_CLASS_2) 271#define TYPE_FLAG_ADDRESS_CLASS_ALL (TYPE_FLAG_ADDRESS_CLASS_1 \ 272 | TYPE_FLAG_ADDRESS_CLASS_2) 273#define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \ 274 & TYPE_FLAG_ADDRESS_CLASS_ALL) 275 276/* Restrict type. If this is set, the corresponding type has a 277 * restrict modifier. 278 */ 279 280#define TYPE_FLAG_RESTRICT (1 << 17) 281#define TYPE_RESTRICT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_RESTRICT) 282 283/* Array bound type. */ 284enum array_bound_type 285{ 286 BOUND_SIMPLE = 0, 287 BOUND_BY_VALUE_IN_REG, 288 BOUND_BY_REF_IN_REG, 289 BOUND_BY_VALUE_ON_STACK, 290 BOUND_BY_REF_ON_STACK, 291 BOUND_CANNOT_BE_DETERMINED 292}; 293 294/* This structure is space-critical. 295 Its layout has been tweaked to reduce the space used. */ 296 297struct main_type 298{ 299 /* Code for kind of type */ 300 301 ENUM_BITFIELD(type_code) code : 8; 302 303 /* Array bounds. These fields appear at this location because 304 they pack nicely here. */ 305 306 ENUM_BITFIELD(array_bound_type) upper_bound_type : 4; 307 ENUM_BITFIELD(array_bound_type) lower_bound_type : 4; 308 309 /* Name of this type, or NULL if none. 310 311 This is used for printing only, except by poorly designed C++ code. 312 For looking up a name, look for a symbol in the VAR_DOMAIN. */ 313 314 char *name; 315 316 /* Tag name for this type, or NULL if none. This means that the 317 name of the type consists of a keyword followed by the tag name. 318 Which keyword is determined by the type code ("struct" for 319 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages 320 with this feature. 321 322 This is used for printing only, except by poorly designed C++ code. 323 For looking up a name, look for a symbol in the STRUCT_DOMAIN. 324 One more legitimate use is that if TYPE_FLAG_STUB is set, this is 325 the name to use to look for definitions in other files. */ 326 327 char *tag_name; 328 329 /* Every type is now associated with a particular objfile, and the 330 type is allocated on the objfile_obstack for that objfile. One problem 331 however, is that there are times when gdb allocates new types while 332 it is not in the process of reading symbols from a particular objfile. 333 Fortunately, these happen when the type being created is a derived 334 type of an existing type, such as in lookup_pointer_type(). So 335 we can just allocate the new type using the same objfile as the 336 existing type, but to do this we need a backpointer to the objfile 337 from the existing type. Yes this is somewhat ugly, but without 338 major overhaul of the internal type system, it can't be avoided 339 for now. */ 340 341 struct objfile *objfile; 342 343 /* For a pointer type, describes the type of object pointed to. 344 For an array type, describes the type of the elements. 345 For a function or method type, describes the type of the return value. 346 For a range type, describes the type of the full range. 347 For a complex type, describes the type of each coordinate. 348 Unused otherwise. */ 349 350 struct type *target_type; 351 352 /* Flags about this type. */ 353 354 int flags; 355 356 /* Number of fields described for this type */ 357 358 short nfields; 359 360 /* Field number of the virtual function table pointer in 361 VPTR_BASETYPE. If -1, we were unable to find the virtual 362 function table pointer in initial symbol reading, and 363 fill_in_vptr_fieldno should be called to find it if possible. 364 365 Unused if this type does not have virtual functions. */ 366 367 short vptr_fieldno; 368 369 /* For structure and union types, a description of each field. 370 For set and pascal array types, there is one "field", 371 whose type is the domain type of the set or array. 372 For range types, there are two "fields", 373 the minimum and maximum values (both inclusive). 374 For enum types, each possible value is described by one "field". 375 For a function or method type, a "field" for each parameter. 376 For C++ classes, there is one field for each base class (if it is 377 a derived class) plus one field for each class data member. Member 378 functions are recorded elsewhere. 379 380 Using a pointer to a separate array of fields 381 allows all types to have the same size, which is useful 382 because we can allocate the space for a type before 383 we know what to put in it. */ 384 385 struct field 386 { 387 union field_location 388 { 389 /* Position of this field, counting in bits from start of 390 containing structure. 391 For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB. 392 For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. 393 For a range bound or enum value, this is the value itself. */ 394 395 int bitpos; 396 397 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr 398 is the location (in the target) of the static field. 399 Otherwise, physname is the mangled label of the static field. */ 400 401 CORE_ADDR physaddr; 402 char *physname; 403 } 404 loc; 405 406 /* For a function or member type, this is 1 if the argument is marked 407 artificial. Artificial arguments should not be shown to the 408 user. */ 409 unsigned int artificial : 1; 410 411 /* This flag is zero for non-static fields, 1 for fields whose location 412 is specified by the label loc.physname, and 2 for fields whose location 413 is specified by loc.physaddr. */ 414 415 unsigned int static_kind : 2; 416 417 /* Size of this field, in bits, or zero if not packed. 418 For an unpacked field, the field's type's length 419 says how many bytes the field occupies. */ 420 421 unsigned int bitsize : 29; 422 423 /* In a struct or union type, type of this field. 424 In a function or member type, type of this argument. 425 In an array type, the domain-type of the array. */ 426 427 struct type *type; 428 429 /* Name of field, value or argument. 430 NULL for range bounds, array domains, and member function 431 arguments. */ 432 433 char *name; 434 435 } *fields; 436 437 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE 438 is the base class which defined the virtual function table pointer. 439 440 For types that are pointer to member types (TYPE_CODE_MEMBER), 441 VPTR_BASETYPE is the type that this pointer is a member of. 442 443 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate 444 type that contains the method. 445 446 Unused otherwise. */ 447 448 struct type *vptr_basetype; 449 450 /* Slot to point to additional language-specific fields of this type. */ 451 452 union type_specific 453 { 454 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to 455 cplus_struct_default, a default static instance of a struct 456 cplus_struct_type. */ 457 458 struct cplus_struct_type *cplus_stuff; 459 460 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to the 461 floatformat object that describes the floating-point value 462 that resides within the type. */ 463 464 const struct floatformat *floatformat; 465 } type_specific; 466}; 467 468/* A ``struct type'' describes a particular instance of a type, with 469 some particular qualification. */ 470struct type 471{ 472 /* Type that is a pointer to this type. 473 NULL if no such pointer-to type is known yet. 474 The debugger may add the address of such a type 475 if it has to construct one later. */ 476 477 struct type *pointer_type; 478 479 /* C++: also need a reference type. */ 480 481 struct type *reference_type; 482 483 /* Variant chain. This points to a type that differs from this one only 484 in qualifiers and length. Currently, the possible qualifiers are 485 const, volatile, code-space, data-space, and address class. The 486 length may differ only when one of the address class flags are set. 487 The variants are linked in a circular ring and share MAIN_TYPE. */ 488 struct type *chain; 489 490 /* Flags specific to this instance of the type, indicating where 491 on the ring we are. */ 492 int instance_flags; 493 494 /* Length of storage for a value of this type. This is what 495 sizeof(type) would return; use it for address arithmetic, 496 memory reads and writes, etc. This size includes padding. For 497 example, an i386 extended-precision floating point value really 498 only occupies ten bytes, but most ABI's declare its size to be 499 12 bytes, to preserve alignment. A `struct type' representing 500 such a floating-point type would have a `length' value of 12, 501 even though the last two bytes are unused. 502 503 There's a bit of a host/target mess here, if you're concerned 504 about machines whose bytes aren't eight bits long, or who don't 505 have byte-addressed memory. Various places pass this to memcpy 506 and such, meaning it must be in units of host bytes. Various 507 other places expect they can calculate addresses by adding it 508 and such, meaning it must be in units of target bytes. For 509 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8 510 and TARGET_CHAR_BIT will be (say) 32, this is a problem. 511 512 One fix would be to make this field in bits (requiring that it 513 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) --- 514 the other choice would be to make it consistently in units of 515 HOST_CHAR_BIT. However, this would still fail to address 516 machines based on a ternary or decimal representation. */ 517 518 unsigned length; 519 520 /* Core type, shared by a group of qualified types. */ 521 struct main_type *main_type; 522}; 523 524#define NULL_TYPE ((struct type *) 0) 525 526/* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION 527 nodes. */ 528 529struct cplus_struct_type 530 { 531 /* Number of base classes this type derives from. The baseclasses are 532 stored in the first N_BASECLASSES fields (i.e. the `fields' field of 533 the struct type). I think only the `type' field of such a field has 534 any meaning. */ 535 536 short n_baseclasses; 537 538 /* Number of methods with unique names. All overloaded methods with 539 the same name count only once. */ 540 541 short nfn_fields; 542 543 /* Number of methods described for this type, not including the 544 methods that it derives from. */ 545 546 short nfn_fields_total; 547 548 /* The "declared_type" field contains a code saying how the 549 user really declared this type, e.g., "class s", "union s", 550 "struct s". 551 The 3 above things come out from the C++ compiler looking like classes, 552 but we keep track of the real declaration so we can give 553 the correct information on "ptype". (Note: TEMPLATE may not 554 belong in this list...) */ 555 556#define DECLARED_TYPE_CLASS 0 557#define DECLARED_TYPE_UNION 1 558#define DECLARED_TYPE_STRUCT 2 559#define DECLARED_TYPE_TEMPLATE 3 560 short declared_type; /* One of the above codes */ 561 562 /* For derived classes, the number of base classes is given by n_baseclasses 563 and virtual_field_bits is a bit vector containing one bit per base class. 564 If the base class is virtual, the corresponding bit will be set. 565 I.E, given: 566 567 class A{}; 568 class B{}; 569 class C : public B, public virtual A {}; 570 571 B is a baseclass of C; A is a virtual baseclass for C. 572 This is a C++ 2.0 language feature. */ 573 574 B_TYPE *virtual_field_bits; 575 576 /* For classes with private fields, the number of fields is given by 577 nfields and private_field_bits is a bit vector containing one bit 578 per field. 579 If the field is private, the corresponding bit will be set. */ 580 581 B_TYPE *private_field_bits; 582 583 /* For classes with protected fields, the number of fields is given by 584 nfields and protected_field_bits is a bit vector containing one bit 585 per field. 586 If the field is private, the corresponding bit will be set. */ 587 588 B_TYPE *protected_field_bits; 589 590 /* for classes with fields to be ignored, either this is optimized out 591 or this field has length 0 */ 592 593 B_TYPE *ignore_field_bits; 594 595 /* For classes, structures, and unions, a description of each field, 596 which consists of an overloaded name, followed by the types of 597 arguments that the method expects, and then the name after it 598 has been renamed to make it distinct. 599 600 fn_fieldlists points to an array of nfn_fields of these. */ 601 602 struct fn_fieldlist 603 { 604 605 /* The overloaded name. */ 606 607 char *name; 608 609 /* The number of methods with this name. */ 610 611 int length; 612 613 /* The list of methods. */ 614 615 struct fn_field 616 { 617 618 /* If is_stub is clear, this is the mangled name which we can 619 look up to find the address of the method (FIXME: it would 620 be cleaner to have a pointer to the struct symbol here 621 instead). */ 622 623 /* If is_stub is set, this is the portion of the mangled 624 name which specifies the arguments. For example, "ii", 625 if there are two int arguments, or "" if there are no 626 arguments. See gdb_mangle_name for the conversion from this 627 format to the one used if is_stub is clear. */ 628 629 char *physname; 630 631 /* The function type for the method. 632 (This comment used to say "The return value of the method", 633 but that's wrong. The function type 634 is expected here, i.e. something with TYPE_CODE_FUNC, 635 and *not* the return-value type). */ 636 637 struct type *type; 638 639 /* For virtual functions. 640 First baseclass that defines this virtual function. */ 641 642 struct type *fcontext; 643 644 /* Attributes. */ 645 646 unsigned int is_const:1; 647 unsigned int is_volatile:1; 648 unsigned int is_private:1; 649 unsigned int is_protected:1; 650 unsigned int is_public:1; 651 unsigned int is_abstract:1; 652 unsigned int is_static:1; 653 unsigned int is_final:1; 654 unsigned int is_synchronized:1; 655 unsigned int is_native:1; 656 unsigned int is_artificial:1; 657 658 /* A stub method only has some fields valid (but they are enough 659 to reconstruct the rest of the fields). */ 660 unsigned int is_stub:1; 661 662 /* C++ method that is inlined */ 663 unsigned int is_inlined:1; 664 665 /* Unused. */ 666 unsigned int dummy:3; 667 668 /* Index into that baseclass's virtual function table, 669 minus 2; else if static: VOFFSET_STATIC; else: 0. */ 670 671 unsigned int voffset:16; 672 673#define VOFFSET_STATIC 1 674 675 } 676 *fn_fields; 677 678 } 679 *fn_fieldlists; 680 681 /* If this "struct type" describes a template, then it 682 * has arguments. "template_args" points to an array of 683 * template arg descriptors, of length "ntemplate_args". 684 * The only real information in each of these template arg descriptors 685 * is a name. "type" will typically just point to a "struct type" with 686 * the placeholder TYPE_CODE_TEMPLATE_ARG type. 687 */ 688 short ntemplate_args; 689 struct template_arg 690 { 691 char *name; 692 struct type *type; 693 } 694 *template_args; 695 696 /* If this "struct type" describes a template, it has a list 697 * of instantiations. "instantiations" is a pointer to an array 698 * of type's, one representing each instantiation. There 699 * are "ninstantiations" elements in this array. 700 */ 701 short ninstantiations; 702 struct type **instantiations; 703 704 /* The following points to information relevant to the runtime model 705 * of the compiler. 706 * Currently being used only for HP's ANSI C++ compiler. 707 * (This type may have to be changed/enhanced for other compilers.) 708 * 709 * RUNTIME_PTR is NULL if there is no runtime information (currently 710 * this means the type was not compiled by HP aCC). 711 * 712 * Fields in structure pointed to: 713 * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present 714 * 715 * ->PRIMARY_BASE points to the first non-virtual base class that has 716 * a virtual table. 717 * 718 * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that 719 * point to the type information for all virtual bases among this type's 720 * ancestors. 721 */ 722 struct runtime_info 723 { 724 short has_vtable; 725 struct type *primary_base; 726 struct type **virtual_base_list; 727 } 728 *runtime_ptr; 729 730 /* Pointer to information about enclosing scope, if this is a 731 * local type. If it is not a local type, this is NULL 732 */ 733 struct local_type_info 734 { 735 char *file; 736 int line; 737 } 738 *localtype_ptr; 739 }; 740 741/* Struct used in computing virtual base list */ 742struct vbase 743 { 744 struct type *vbasetype; /* pointer to virtual base */ 745 struct vbase *next; /* next in chain */ 746 }; 747 748/* Struct used for ranking a function for overload resolution */ 749struct badness_vector 750 { 751 int length; 752 int *rank; 753 }; 754 755/* The default value of TYPE_CPLUS_SPECIFIC(T) points to the 756 this shared static structure. */ 757 758extern const struct cplus_struct_type cplus_struct_default; 759 760extern void allocate_cplus_struct_type (struct type *); 761 762#define INIT_CPLUS_SPECIFIC(type) \ 763 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default) 764#define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type) 765#define HAVE_CPLUS_STRUCT(type) \ 766 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default) 767 768#define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags 769#define TYPE_MAIN_TYPE(thistype) (thistype)->main_type 770#define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name 771#define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name 772#define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type 773#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type 774#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type 775#define TYPE_CHAIN(thistype) (thistype)->chain 776/* Note that if thistype is a TYPEDEF type, you have to call check_typedef. 777 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type, 778 so you only have to call check_typedef once. Since allocate_value 779 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */ 780#define TYPE_LENGTH(thistype) (thistype)->length 781#define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile 782#define TYPE_FLAGS(thistype) TYPE_MAIN_TYPE(thistype)->flags 783/* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real 784 type, you need to do TYPE_CODE (check_type (this_type)). */ 785#define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code 786#define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields 787#define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields 788#define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args 789#define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations 790 791#define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0) 792#define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0) 793#define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1) 794 795/* Moto-specific stuff for FORTRAN arrays */ 796 797#define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) \ 798 TYPE_MAIN_TYPE(thistype)->upper_bound_type 799#define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) \ 800 TYPE_MAIN_TYPE(thistype)->lower_bound_type 801 802#define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \ 803 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1)) 804 805#define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \ 806 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0)) 807 808/* C++ */ 809 810#define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype 811#define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype 812#define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno 813#define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields 814#define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields 815#define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total 816#define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args 817#define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations 818#define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type 819#define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific 820#define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff 821#define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat 822#define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type 823#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses 824#define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name 825#define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index) 826#define BASETYPE_VIA_PUBLIC(thistype, index) \ 827 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index))) 828 829#define BASETYPE_VIA_VIRTUAL(thistype, index) \ 830 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ 831 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))) 832 833#define FIELD_TYPE(thisfld) ((thisfld).type) 834#define FIELD_NAME(thisfld) ((thisfld).name) 835#define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos) 836#define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial) 837#define FIELD_BITSIZE(thisfld) ((thisfld).bitsize) 838#define FIELD_STATIC_KIND(thisfld) ((thisfld).static_kind) 839#define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname) 840#define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr) 841#define SET_FIELD_PHYSNAME(thisfld, name) \ 842 ((thisfld).static_kind = 1, FIELD_PHYSNAME(thisfld) = (name)) 843#define SET_FIELD_PHYSADDR(thisfld, name) \ 844 ((thisfld).static_kind = 2, FIELD_PHYSADDR(thisfld) = (name)) 845#define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n] 846#define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n)) 847#define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n)) 848#define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n)) 849#define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n)) 850#define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n)) 851#define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0) 852#define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n] 853#define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n] 854 855#define TYPE_FIELD_PRIVATE_BITS(thistype) \ 856 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits 857#define TYPE_FIELD_PROTECTED_BITS(thistype) \ 858 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits 859#define TYPE_FIELD_IGNORE_BITS(thistype) \ 860 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits 861#define TYPE_FIELD_VIRTUAL_BITS(thistype) \ 862 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits 863#define SET_TYPE_FIELD_PRIVATE(thistype, n) \ 864 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)) 865#define SET_TYPE_FIELD_PROTECTED(thistype, n) \ 866 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)) 867#define SET_TYPE_FIELD_IGNORE(thistype, n) \ 868 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)) 869#define SET_TYPE_FIELD_VIRTUAL(thistype, n) \ 870 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)) 871#define TYPE_FIELD_PRIVATE(thistype, n) \ 872 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \ 873 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))) 874#define TYPE_FIELD_PROTECTED(thistype, n) \ 875 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \ 876 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))) 877#define TYPE_FIELD_IGNORE(thistype, n) \ 878 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \ 879 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))) 880#define TYPE_FIELD_VIRTUAL(thistype, n) \ 881 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \ 882 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))) 883 884#define TYPE_FIELD_STATIC(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].static_kind != 0) 885#define TYPE_FIELD_STATIC_KIND(thistype, n) TYPE_MAIN_TYPE (thistype)->fields[n].static_kind 886#define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].static_kind == 2) 887#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n)) 888#define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n)) 889 890#define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists 891#define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n] 892#define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields 893#define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name 894#define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length 895 896#define TYPE_FN_FIELD(thisfn, n) (thisfn)[n] 897#define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname 898#define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type 899#define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type) 900#define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const) 901#define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile) 902#define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private) 903#define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected) 904#define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public) 905#define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static) 906#define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final) 907#define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized) 908#define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native) 909#define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial) 910#define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract) 911#define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub) 912#define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined) 913#define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext) 914#define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2) 915#define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1) 916#define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC) 917 918#define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr) 919#define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable) 920#define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype)) 921#define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base) 922#define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list) 923 924#define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr) 925#define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file) 926#define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line) 927 928#define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \ 929 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \ 930 (TYPE_NFIELDS (thistype) == 0) && \ 931 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0))) 932 933 934 935/* Implicit sizes */ 936extern struct type *builtin_type_void; 937extern struct type *builtin_type_char; 938extern struct type *builtin_type_short; 939extern struct type *builtin_type_int; 940extern struct type *builtin_type_long; 941extern struct type *builtin_type_signed_char; 942extern struct type *builtin_type_unsigned_char; 943extern struct type *builtin_type_unsigned_short; 944extern struct type *builtin_type_unsigned_int; 945extern struct type *builtin_type_unsigned_long; 946extern struct type *builtin_type_float; 947extern struct type *builtin_type_double; 948extern struct type *builtin_type_long_double; 949extern struct type *builtin_type_complex; 950extern struct type *builtin_type_double_complex; 951extern struct type *builtin_type_string; 952extern struct type *builtin_type_bool; 953 954/* Address/pointer types: */ 955/* (C) Language `pointer to data' type. Some target platforms use an 956 implicitly {sign,zero} -extended 32 bit C language pointer on a 64 957 bit ISA. */ 958extern struct type *builtin_type_void_data_ptr; 959 960/* (C) Language `pointer to function returning void' type. Since 961 ANSI, C standards have explicitly said that pointers to functions 962 and pointers to data are not interconvertible --- that is, you 963 can't cast a function pointer to void * and back, and expect to get 964 the same value. However, all function pointer types are 965 interconvertible, so void (*) () can server as a generic function 966 pointer. */ 967extern struct type *builtin_type_void_func_ptr; 968 969/* The target CPU's address type. This is the ISA address size. */ 970extern struct type *builtin_type_CORE_ADDR; 971/* The symbol table address type. Some object file formats have a 32 972 bit address type even though the TARGET has a 64 bit pointer type 973 (cf MIPS). */ 974extern struct type *builtin_type_bfd_vma; 975 976/* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0" 977 is for when an architecture needs to describe a register that has 978 no size. */ 979extern struct type *builtin_type_int0; 980extern struct type *builtin_type_int8; 981extern struct type *builtin_type_uint8; 982extern struct type *builtin_type_int16; 983extern struct type *builtin_type_uint16; 984extern struct type *builtin_type_int32; 985extern struct type *builtin_type_uint32; 986extern struct type *builtin_type_int64; 987extern struct type *builtin_type_uint64; 988extern struct type *builtin_type_int128; 989extern struct type *builtin_type_uint128; 990 991/* SIMD types. We inherit these names from GCC. */ 992extern struct type *builtin_type_v4sf; 993extern struct type *builtin_type_v4si; 994extern struct type *builtin_type_v16qi; 995extern struct type *builtin_type_v8qi; 996extern struct type *builtin_type_v8hi; 997extern struct type *builtin_type_v4hi; 998extern struct type *builtin_type_v2si; 999 1000/* Type for 64 bit vectors. */ 1001extern struct type *builtin_type_vec64; 1002extern struct type *builtin_type_vec64i; 1003 1004/* Type for 128 bit vectors. */ 1005extern struct type *builtin_type_vec128; 1006extern struct type *builtin_type_vec128i; 1007 1008/* Explicit floating-point formats. See "floatformat.h". */ 1009extern struct type *builtin_type_ieee_single_big; 1010extern struct type *builtin_type_ieee_single_little; 1011extern struct type *builtin_type_ieee_double_big; 1012extern struct type *builtin_type_ieee_double_little; 1013extern struct type *builtin_type_ieee_double_littlebyte_bigword; 1014extern struct type *builtin_type_i387_ext; 1015extern struct type *builtin_type_m68881_ext; 1016extern struct type *builtin_type_i960_ext; 1017extern struct type *builtin_type_m88110_ext; 1018extern struct type *builtin_type_m88110_harris_ext; 1019extern struct type *builtin_type_arm_ext_big; 1020extern struct type *builtin_type_arm_ext_littlebyte_bigword; 1021extern struct type *builtin_type_ia64_spill_big; 1022extern struct type *builtin_type_ia64_spill_little; 1023extern struct type *builtin_type_ia64_quad_big; 1024extern struct type *builtin_type_ia64_quad_little; 1025 1026/* We use this for the '/c' print format, because builtin_type_char is 1027 just a one-byte integral type, which languages less laid back than 1028 C will print as ... well, a one-byte integral type. */ 1029extern struct type *builtin_type_true_char; 1030 1031/* This type represents a type that was unrecognized in symbol 1032 read-in. */ 1033 1034extern struct type *builtin_type_error; 1035 1036extern struct type *builtin_type_long_long; 1037extern struct type *builtin_type_unsigned_long_long; 1038 1039/* Modula-2 types */ 1040 1041extern struct type *builtin_type_m2_char; 1042extern struct type *builtin_type_m2_int; 1043extern struct type *builtin_type_m2_card; 1044extern struct type *builtin_type_m2_real; 1045extern struct type *builtin_type_m2_bool; 1046 1047/* Fortran (F77) types */ 1048 1049extern struct type *builtin_type_f_character; 1050extern struct type *builtin_type_f_integer; 1051extern struct type *builtin_type_f_integer_s2; 1052extern struct type *builtin_type_f_logical; 1053extern struct type *builtin_type_f_logical_s1; 1054extern struct type *builtin_type_f_logical_s2; 1055extern struct type *builtin_type_f_real; 1056extern struct type *builtin_type_f_real_s8; 1057extern struct type *builtin_type_f_real_s16; 1058extern struct type *builtin_type_f_complex_s8; 1059extern struct type *builtin_type_f_complex_s16; 1060extern struct type *builtin_type_f_complex_s32; 1061extern struct type *builtin_type_f_void; 1062 1063/* RTTI for C++ */ 1064/* extern struct type *builtin_type_cxx_typeinfo; */ 1065 1066/* Maximum and minimum values of built-in types */ 1067 1068#define MAX_OF_TYPE(t) \ 1069 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \ 1070 : MAX_OF_SIZE(TYPE_LENGTH(t))) 1071 1072#define MIN_OF_TYPE(t) \ 1073 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \ 1074 : MIN_OF_SIZE(TYPE_LENGTH(t))) 1075 1076/* Allocate space for storing data associated with a particular type. 1077 We ensure that the space is allocated using the same mechanism that 1078 was used to allocate the space for the type structure itself. I.E. 1079 if the type is on an objfile's objfile_obstack, then the space for data 1080 associated with that type will also be allocated on the objfile_obstack. 1081 If the type is not associated with any particular objfile (such as 1082 builtin types), then the data space will be allocated with xmalloc, 1083 the same as for the type structure. */ 1084 1085#define TYPE_ALLOC(t,size) \ 1086 (TYPE_OBJFILE (t) != NULL \ 1087 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \ 1088 : xmalloc (size)) 1089 1090extern struct type *alloc_type (struct objfile *); 1091 1092extern struct type *init_type (enum type_code, int, int, char *, 1093 struct objfile *); 1094 1095/* Helper functions to construct a struct or record type. An 1096 initially empty type is created using init_composite_type(). 1097 Fields are then added using append_struct_type_field(). A union 1098 type has its size set to the largest field. A struct type has each 1099 field packed against the previous. */ 1100 1101extern struct type *init_composite_type (char *name, enum type_code code); 1102extern void append_composite_type_field (struct type *t, char *name, 1103 struct type *field); 1104 1105extern struct type *lookup_reference_type (struct type *); 1106 1107extern struct type *make_reference_type (struct type *, struct type **); 1108 1109extern struct type *make_cvr_type (int, int, int, struct type *, 1110 struct type **); 1111 1112extern void replace_type (struct type *, struct type *); 1113 1114extern int address_space_name_to_int (char *); 1115 1116extern const char *address_space_int_to_name (int); 1117 1118extern struct type *make_type_with_address_space (struct type *type, 1119 int space_identifier); 1120 1121extern struct type *lookup_member_type (struct type *, struct type *); 1122 1123extern void 1124smash_to_method_type (struct type *type, struct type *domain, 1125 struct type *to_type, struct field *args, 1126 int nargs, int varargs); 1127 1128extern void smash_to_member_type (struct type *, struct type *, struct type *); 1129 1130extern struct type *allocate_stub_method (struct type *); 1131 1132extern char *type_name_no_tag (const struct type *); 1133 1134extern struct type *lookup_struct_elt_type (struct type *, char *, int); 1135 1136extern struct type *make_pointer_type (struct type *, struct type **); 1137 1138extern struct type *lookup_pointer_type (struct type *); 1139 1140extern struct type *make_function_type (struct type *, struct type **); 1141 1142extern struct type *lookup_function_type (struct type *); 1143 1144extern struct type *create_range_type (struct type *, struct type *, int, 1145 int); 1146 1147extern struct type *create_array_type (struct type *, struct type *, 1148 struct type *); 1149 1150extern struct type *create_string_type (struct type *, struct type *); 1151 1152extern struct type *create_set_type (struct type *, struct type *); 1153 1154extern struct type *lookup_unsigned_typename (char *); 1155 1156extern struct type *lookup_signed_typename (char *); 1157 1158extern struct type *check_typedef (struct type *); 1159 1160#define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE) 1161 1162extern void check_stub_method_group (struct type *, int); 1163 1164extern struct type *lookup_primitive_typename (char *); 1165 1166extern char *gdb_mangle_name (struct type *, int, int); 1167 1168extern struct type *builtin_type (char **); 1169 1170extern struct type *lookup_typename (char *, struct block *, int); 1171 1172extern struct type *lookup_template_type (char *, struct type *, 1173 struct block *); 1174 1175extern struct type *lookup_fundamental_type (struct objfile *, int); 1176 1177extern void fill_in_vptr_fieldno (struct type *); 1178 1179extern int get_destructor_fn_field (struct type *, int *, int *); 1180 1181extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *); 1182 1183extern int is_ancestor (struct type *, struct type *); 1184 1185extern int has_vtable (struct type *); 1186 1187extern struct type *primary_base_class (struct type *); 1188 1189extern struct type **virtual_base_list (struct type *); 1190 1191extern int virtual_base_list_length (struct type *); 1192extern int virtual_base_list_length_skip_primaries (struct type *); 1193 1194extern int virtual_base_index (struct type *, struct type *); 1195extern int virtual_base_index_skip_primaries (struct type *, struct type *); 1196 1197 1198extern int class_index_in_primary_list (struct type *); 1199 1200extern int count_virtual_fns (struct type *); 1201 1202/* Constants for HP/Taligent ANSI C++ runtime model */ 1203 1204/* Where virtual function entries begin in the 1205 * virtual table, in the non-RRBC vtable format. 1206 * First 4 are the metavtable pointer, top offset, 1207 * typeinfo pointer, and dup base info pointer */ 1208#define HP_ACC_VFUNC_START 4 1209 1210/* (Negative) Offset where virtual base offset entries begin 1211 * in the virtual table. Skips over metavtable pointer and 1212 * the self-offset entry. 1213 * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets 1214 * appear before the address point of the vtable (the slot 1215 * pointed to by the object's vtable pointer), i.e. at lower 1216 * addresses than the vtable pointer. */ 1217#define HP_ACC_VBASE_START 2 1218 1219/* (Positive) Offset where the pointer to the typeinfo 1220 * object is present in the virtual table */ 1221#define HP_ACC_TYPEINFO_OFFSET 2 1222 1223/* (Positive) Offset where the ``top offset'' entry of 1224 * the virtual table is */ 1225#define HP_ACC_TOP_OFFSET_OFFSET 1 1226 1227/* Overload resolution */ 1228 1229#define LENGTH_MATCH(bv) ((bv)->rank[0]) 1230 1231/* Badness if parameter list length doesn't match arg list length */ 1232#define LENGTH_MISMATCH_BADNESS 100 1233/* Dummy badness value for nonexistent parameter positions */ 1234#define TOO_FEW_PARAMS_BADNESS 100 1235/* Badness if no conversion among types */ 1236#define INCOMPATIBLE_TYPE_BADNESS 100 1237 1238/* Badness of integral promotion */ 1239#define INTEGER_PROMOTION_BADNESS 1 1240/* Badness of floating promotion */ 1241#define FLOAT_PROMOTION_BADNESS 1 1242/* Badness of integral conversion */ 1243#define INTEGER_CONVERSION_BADNESS 2 1244/* Badness of floating conversion */ 1245#define FLOAT_CONVERSION_BADNESS 2 1246/* Badness of integer<->floating conversions */ 1247#define INT_FLOAT_CONVERSION_BADNESS 2 1248/* Badness of converting to a boolean */ 1249#define BOOLEAN_CONVERSION_BADNESS 2 1250/* Badness of pointer conversion */ 1251#define POINTER_CONVERSION_BADNESS 2 1252/* Badness of conversion of pointer to void pointer */ 1253#define VOID_PTR_CONVERSION_BADNESS 2 1254/* Badness of converting derived to base class */ 1255#define BASE_CONVERSION_BADNESS 2 1256/* Badness of converting from non-reference to reference */ 1257#define REFERENCE_CONVERSION_BADNESS 2 1258 1259/* Non-standard conversions allowed by the debugger */ 1260/* Converting a pointer to an int is usually OK */ 1261#define NS_POINTER_CONVERSION_BADNESS 10 1262 1263 1264extern int compare_badness (struct badness_vector *, struct badness_vector *); 1265 1266extern struct badness_vector *rank_function (struct type **, int, 1267 struct type **, int); 1268 1269extern int rank_one_type (struct type *, struct type *); 1270 1271extern void recursive_dump_type (struct type *, int); 1272 1273/* printcmd.c */ 1274 1275extern void print_scalar_formatted (void *, struct type *, int, int, 1276 struct ui_file *); 1277 1278extern int can_dereference (struct type *); 1279 1280extern int is_integral_type (struct type *); 1281 1282extern void maintenance_print_type (char *, int); 1283 1284#endif /* GDBTYPES_H */ 1285