gdb/gdbtypes.h

   1 /* Internal type definitions for GDB.
   2    Copyright (C) 1992 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support, using pieces from other GDB modules.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #if !defined (GDBTYPES_H)
  22 #define GDBTYPES_H 1
  23
  24 /* When gdb creates fundamental types, it uses one of the following
  25    type identifiers.  The identifiers are used to index a vector of
  26    pointers to any types that are created. */
  27
  28 #define FT_VOID                 0
  29 #define FT_BOOLEAN              1
  30 #define FT_CHAR                 2
  31 #define FT_SIGNED_CHAR          3
  32 #define FT_UNSIGNED_CHAR        4
  33 #define FT_SHORT                5
  34 #define FT_SIGNED_SHORT         6
  35 #define FT_UNSIGNED_SHORT       7
  36 #define FT_INTEGER              8
  37 #define FT_SIGNED_INTEGER       9
  38 #define FT_UNSIGNED_INTEGER     10
  39 #define FT_LONG                 11
  40 #define FT_SIGNED_LONG          12
  41 #define FT_UNSIGNED_LONG        13
  42 #define FT_LONG_LONG            14
  43 #define FT_SIGNED_LONG_LONG     15
  44 #define FT_UNSIGNED_LONG_LONG   16
  45 #define FT_FLOAT                17
  46 #define FT_DBL_PREC_FLOAT       18
  47 #define FT_EXT_PREC_FLOAT       19
  48 #define FT_COMPLEX              20
  49 #define FT_DBL_PREC_COMPLEX     21
  50 #define FT_EXT_PREC_COMPLEX     22
  51 #define FT_STRING               23
  52 #define FT_FIXED_DECIMAL        24
  53 #define FT_FLOAT_DECIMAL        25
  54 #define FT_BYTE                 26
  55 #define FT_UNSIGNED_BYTE        27
  56
  57 #define FT_NUM_MEMBERS          28      /* Highest FT_* above, plus one. */
  58
  59 /* Some macros for char-based bitfields.  */
  60
  61 #define B_SET(a,x)      ((a)[(x)>>3] |= (1 << ((x)&7)))
  62 #define B_CLR(a,x)      ((a)[(x)>>3] &= ~(1 << ((x)&7)))
  63 #define B_TST(a,x)      ((a)[(x)>>3] & (1 << ((x)&7)))
  64 #define B_TYPE          unsigned char
  65 #define B_BYTES(x)      ( 1 + ((x)>>3) )
  66 #define B_CLRALL(a,x)   memset ((a), 0, B_BYTES(x))
  67
  68 /* Different kinds of data types are distinguished by the `code' field.  */
  69
  70 enum type_code
  71 {
  72   TYPE_CODE_UNDEF,              /* Not used; catches errors */
  73   TYPE_CODE_PTR,                /* Pointer type */
  74   TYPE_CODE_ARRAY,              /* Array type with lower & upper bounds. */
  75   TYPE_CODE_STRUCT,             /* C struct or Pascal record */
  76   TYPE_CODE_UNION,              /* C union or Pascal variant part */
  77   TYPE_CODE_ENUM,               /* Enumeration type */
  78   TYPE_CODE_FUNC,               /* Function type */
  79   TYPE_CODE_INT,                /* Integer type */
  80
  81   /* Floating type.  This is *NOT* a complex type.  Complex types, when
  82      we have them, will have their own type code (or TYPE_CODE_ERROR if
  83      we can parse a complex type but not manipulate it).  There are parts
  84      of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  85   TYPE_CODE_FLT,
  86
  87   /* Void type (values zero length; the length field is ignored).  */
  88   TYPE_CODE_VOID,
  89
  90   TYPE_CODE_SET,                /* Pascal sets */
  91   TYPE_CODE_RANGE,              /* Range (integers within spec'd bounds) */
  92   TYPE_CODE_STRING,             /* String types, distinct from array of char */
  93   TYPE_CODE_BITSTRING,          /* String of bits, distinct from bool array */
  94
  95   /* Unknown type.  The length field is valid if we were able to
  96      deduce that much about the type, or 0 if we don't even know that.  */
  97   TYPE_CODE_ERROR,
  98
  99   /* C++ */
 100   TYPE_CODE_MEMBER,             /* Member type */
 101   TYPE_CODE_METHOD,             /* Method type */
 102   TYPE_CODE_REF,                /* C++ Reference types */
 103
 104   /* Modula-2 */
 105   TYPE_CODE_CHAR,               /* *real* character type */
 106   TYPE_CODE_BOOL                /* BOOLEAN type */
 107 };
 108
 109 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 110    alias for TYPE_CODE_STRUCT.  Eventually these should probably be
 111    officially distinct types within gdb. */
 112
 113 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 114
 115 /* Some bits for the type's flags word. */
 116
 117 /* Explicitly unsigned integer type */
 118
 119 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 120
 121 /* Explicitly signed integer type */
 122
 123 #define TYPE_FLAG_SIGNED        (1 << 1)
 124
 125 /* This appears in a type's flags word if it is a stub type (eg. if
 126    someone referenced a type that wasn't defined in a source file
 127    via (struct sir_not_appearing_in_this_film *)).  */
 128
 129 #define TYPE_FLAG_STUB          (1 << 2)
 130
 131
 132 struct type
 133 {
 134
 135   /* Code for kind of type */
 136
 137   enum type_code code;
 138
 139   /* Name of this type, or NULL if none.
 140      This is used for printing only, except by poorly designed C++ code.
 141      Type names specified as input are defined by symbols.  */
 142
 143   char *name;
 144
 145   /* Length, in units of TARGET_CHAR_BIT bits,
 146      of storage for a value of this type */
 147
 148   unsigned length;
 149
 150   /* Every type is now associated with a particular objfile, and the
 151      type is allocated on the type_obstack for that objfile.  One problem
 152      however, is that there are times when gdb allocates new types while
 153      it is not in the process of reading symbols from a particular objfile.
 154      Fortunately, these happen when the type being created is a derived
 155      type of an existing type, such as in lookup_pointer_type().  So
 156      we can just allocate the new type using the same objfile as the
 157      existing type, but to do this we need a backpointer to the objfile
 158      from the existing type.  Yes this is somewhat ugly, but without
 159      major overhaul of the internal type system, it can't be avoided
 160      for now. */
 161
 162   struct objfile *objfile;
 163
 164   /* For a pointer type, describes the type of object pointed to.
 165      For an array type, describes the type of the elements.
 166      For a function or method type, describes the type of the return value.
 167      For a range type, describes the type of the full range.
 168      Unused otherwise.  */
 169
 170   struct type *target_type;
 171
 172   /* Type that is a pointer to this type.
 173      NULL if no such pointer-to type is known yet.
 174      The debugger may add the address of such a type
 175      if it has to construct one later.  */
 176
 177   struct type *pointer_type;
 178
 179   /* C++: also need a reference type.  */
 180
 181   struct type *reference_type;
 182
 183   /* Type that is a function returning this type.
 184      NULL if no such function type is known here.
 185      The debugger may add the address of such a type
 186      if it has to construct one later.  */
 187
 188   struct type *function_type;
 189
 190   /* Flags about this type.  */
 191
 192   short flags;
 193
 194   /* Number of fields described for this type */
 195
 196   short nfields;
 197
 198   /* For structure and union types, a description of each field.
 199      For set and pascal array types, there is one "field",
 200      whose type is the domain type of the set or array.
 201      For range types, there are two "fields",
 202      the minimum and maximum values (both inclusive).
 203      For enum types, each possible value is described by one "field".
 204      For C++ classes, there is one field for each base class (if it is
 205      a derived class) plus one field for each class data member.  Member
 206      functions are recorded elsewhere.
 207
 208      Using a pointer to a separate array of fields
 209      allows all types to have the same size, which is useful
 210      because we can allocate the space for a type before
 211      we know what to put in it.  */
 212
 213   struct field
 214     {
 215
 216       /* Position of this field, counting in bits from start of
 217          containing structure.  For a function type, this is the
 218          position in the argument list of this argument.
 219          For a range bound or enum value, this is the value itself.
 220          (FIXME:  What about ranges larger than host int size?)
 221          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 222          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
 223
 224       int bitpos;
 225
 226       /* Size of this field, in bits, or zero if not packed.
 227          For an unpacked field, the field's type's length
 228          says how many bytes the field occupies.  */
 229
 230       int bitsize;
 231
 232       /* In a struct or enum type, type of this field.
 233          In a function type, type of this argument.
 234          In an array type, the domain-type of the array.  */
 235
 236       struct type *type;
 237
 238       /* Name of field, value or argument.
 239          NULL for range bounds and array domains.  */
 240
 241       char *name;
 242
 243     } *fields;
 244
 245   /* For types with virtual functions, VPTR_BASETYPE is the base class which
 246      defined the virtual function table pointer.  VPTR_FIELDNO is
 247      the field number of that pointer in the structure.
 248
 249      For types that are pointer to member types, VPTR_BASETYPE
 250      is the type that this pointer is a member of.
 251
 252      Unused otherwise.  */
 253
 254   struct type *vptr_basetype;
 255
 256   int vptr_fieldno;
 257
 258   /* Slot to point to additional language-specific fields of this type.  */
 259
 260   union type_specific
 261     {
 262
 263       /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC.  */
 264
 265       struct type **arg_types;
 266
 267       /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 268          cplus_struct_default, a default static instance of a struct
 269          cplus_struct_type. */
 270
 271       struct cplus_struct_type *cplus_stuff;
 272
 273     } type_specific;
 274 };
 275
 276 #define NULL_TYPE ((struct type *) 0)
 277
 278 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 279    nodes.  */
 280
 281 struct cplus_struct_type
 282 {
 283   /* Number of base classes this type derives from. */
 284
 285   short n_baseclasses;
 286
 287   /* Number of methods with unique names.  All overloaded methods with
 288      the same name count only once. */
 289
 290   short nfn_fields;
 291
 292   /* Number of methods described for this type plus all the
 293      methods that it derives from.  */
 294
 295   int nfn_fields_total;
 296
 297   /* For derived classes, the number of base classes is given by n_baseclasses
 298      and virtual_field_bits is a bit vector containing one bit per base class.
 299      If the base class is virtual, the corresponding bit will be set.
 300      I.E, given:
 301
 302         class A{};
 303         class B{};
 304         class C : public B, public virtual A {};
 305
 306      B is a baseclass of C; A is a virtual baseclass for C.
 307      This is a C++ 2.0 language feature. */
 308
 309   B_TYPE *virtual_field_bits;
 310
 311   /* For classes with private fields, the number of fields is given by
 312      nfields and private_field_bits is a bit vector containing one bit
 313      per field.
 314      If the field is private, the corresponding bit will be set. */
 315
 316   B_TYPE *private_field_bits;
 317
 318   /* For classes with protected fields, the number of fields is given by
 319      nfields and protected_field_bits is a bit vector containing one bit
 320      per field.
 321      If the field is private, the corresponding bit will be set. */
 322
 323   B_TYPE *protected_field_bits;
 324
 325   /* For classes, structures, and unions, a description of each field,
 326      which consists of an overloaded name, followed by the types of
 327      arguments that the method expects, and then the name after it
 328      has been renamed to make it distinct.
 329
 330      fn_fieldlists points to an array of nfn_fields of these. */
 331
 332   struct fn_fieldlist
 333     {
 334
 335       /* The overloaded name.  */
 336
 337       char *name;
 338
 339       /* The number of methods with this name.  */
 340
 341       int length;
 342
 343       /* The list of methods.  */
 344
 345       struct fn_field
 346         {
 347
 348           /* The name after it has been processed */
 349
 350           char *physname;
 351
 352           /* The return value of the method */
 353
 354           struct type *type;
 355
 356           /* The argument list */
 357
 358           struct type **args;
 359
 360           /* For virtual functions.
 361              First baseclass that defines this virtual function.   */
 362
 363           struct type *fcontext;
 364
 365           /* Attributes. */
 366
 367           unsigned int is_const : 1;
 368           unsigned int is_volatile : 1;
 369           unsigned int is_private : 1;
 370           unsigned int is_protected : 1;
 371           unsigned int is_stub : 1;
 372           unsigned int dummy : 3;
 373
 374           /* Index into that baseclass's virtual function table,
 375              minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 376
 377           unsigned int voffset : 24;
 378
 379 #         define VOFFSET_STATIC 1
 380
 381         } *fn_fields;
 382
 383     } *fn_fieldlists;
 384
 385 };
 386
 387 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 388    this shared static structure. */
 389
 390 extern const struct cplus_struct_type cplus_struct_default;
 391
 392 extern void
 393 allocate_cplus_struct_type PARAMS ((struct type *));
 394
 395 #define INIT_CPLUS_SPECIFIC(type) \
 396   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 397 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 398 #define HAVE_CPLUS_STRUCT(type) \
 399   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 400
 401 #define TYPE_NAME(thistype) (thistype)->name
 402 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 403 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 404 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 405 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
 406 #define TYPE_LENGTH(thistype) (thistype)->length
 407 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 408 #define TYPE_FLAGS(thistype) (thistype)->flags
 409 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 410 #define TYPE_CODE(thistype) (thistype)->code
 411 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 412 #define TYPE_FIELDS(thistype) (thistype)->fields
 413
 414 /* C++ */
 415
 416 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 417 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 418 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 419 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 420 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 421 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 422 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 423 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 424 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 425 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 426 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 427 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 428 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
 429 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
 430 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 431   B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
 432
 433 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 434 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
 435 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
 436 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
 437 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
 438 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
 439 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
 440
 441 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 442   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 443 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 444   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 445 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 446   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 447 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 448   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 449 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 450   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 451 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 452   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 453 #define TYPE_FIELD_PRIVATE(thistype, n) \
 454   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 455     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 456 #define TYPE_FIELD_PROTECTED(thistype, n) \
 457   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 458     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 459 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 460        B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 461
 462 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
 463 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
 464
 465 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 466 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 467 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 468 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 469 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 470
 471 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 472 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 473 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 474 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 475 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 476 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 477 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 478 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 479 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 480 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 481 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 482 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 483 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 484
 485 extern struct type *builtin_type_void;
 486 extern struct type *builtin_type_char;
 487 extern struct type *builtin_type_short;
 488 extern struct type *builtin_type_int;
 489 extern struct type *builtin_type_long;
 490 extern struct type *builtin_type_signed_char;
 491 extern struct type *builtin_type_unsigned_char;
 492 extern struct type *builtin_type_unsigned_short;
 493 extern struct type *builtin_type_unsigned_int;
 494 extern struct type *builtin_type_unsigned_long;
 495 extern struct type *builtin_type_float;
 496 extern struct type *builtin_type_double;
 497 extern struct type *builtin_type_long_double;
 498 extern struct type *builtin_type_complex;
 499 extern struct type *builtin_type_double_complex;
 500 extern struct type *builtin_type_string;
 501
 502 /* This type represents a type that was unrecognized in symbol
 503    read-in.  */
 504
 505 extern struct type *builtin_type_error;
 506
 507 extern struct type *builtin_type_long_long;
 508 extern struct type *builtin_type_unsigned_long_long;
 509
 510 /* Modula-2 types */
 511
 512 extern struct type *builtin_type_m2_char;
 513 extern struct type *builtin_type_m2_int;
 514 extern struct type *builtin_type_m2_card;
 515 extern struct type *builtin_type_m2_real;
 516 extern struct type *builtin_type_m2_bool;
 517
 518 /* Chill types */
 519
 520 extern struct type *builtin_type_chill_bool;
 521 extern struct type *builtin_type_chill_char;
 522 extern struct type *builtin_type_chill_long;
 523 extern struct type *builtin_type_chill_ulong;
 524 extern struct type *builtin_type_chill_real;
 525
 526 /* CC_HAS_LONG_LONG is defined if the host has "long long".  */
 527
 528 #ifdef CC_HAS_LONG_LONG
 529
 530 #define BUILTIN_TYPE_LONGEST builtin_type_long_long
 531 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long
 532
 533 #else /* not CC_HAS_LONG_LONG.  */
 534
 535 #define BUILTIN_TYPE_LONGEST builtin_type_long
 536 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long
 537
 538 #endif /* not CC_HAS_LONG_LONG.  */
 539
 540 /* Maximum and minimum values of built-in types */
 541
 542 #define MAX_OF_TYPE(t)  \
 543    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 544     : MAX_OF_SIZE(TYPE_LENGTH(t))
 545
 546 #define MIN_OF_TYPE(t)  \
 547    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 548     : MIN_OF_SIZE(TYPE_LENGTH(t))
 549
 550 /* Allocate space for storing data associated with a particular type.
 551    We ensure that the space is allocated using the same mechanism that
 552    was used to allocate the space for the type structure itself.  I.E.
 553    if the type is on an objfile's type_obstack, then the space for data
 554    associated with that type will also be allocated on the type_obstack.
 555    If the type is not associated with any particular objfile (such as
 556    builtin types), then the data space will be allocated with xmalloc,
 557    the same as for the type structure. */
 558
 559 #define TYPE_ALLOC(t,size)  \
 560    (TYPE_OBJFILE (t) != NULL  \
 561     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 562     : xmalloc (size))
 563
 564 extern struct type *
 565 alloc_type PARAMS ((struct objfile *));
 566
 567 extern struct type *
 568 init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 569
 570 extern struct type *
 571 lookup_reference_type PARAMS ((struct type *));
 572
 573 extern struct type *
 574 make_reference_type PARAMS ((struct type *, struct type **));
 575
 576 extern struct type *
 577 lookup_member_type PARAMS ((struct type *, struct type *));
 578
 579 extern void
 580 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 581                               struct type **));
 582
 583 extern void
 584 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 585
 586 extern struct type *
 587 allocate_stub_method PARAMS ((struct type *));
 588
 589 extern char *
 590 type_name_no_tag PARAMS ((const struct type *));
 591
 592 extern struct type *
 593 lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 594
 595 extern struct type *
 596 make_pointer_type PARAMS ((struct type *, struct type **));
 597
 598 extern struct type *
 599 lookup_pointer_type PARAMS ((struct type *));
 600
 601 extern struct type *
 602 make_function_type PARAMS ((struct type *, struct type **));
 603
 604 extern struct type *
 605 lookup_function_type PARAMS ((struct type *));
 606
 607 extern struct type *
 608 create_range_type PARAMS ((struct type *, struct type *, int, int));
 609
 610 extern struct type *
 611 create_array_type PARAMS ((struct type *, struct type *, struct type *));
 612
 613 extern struct type *
 614 create_string_type PARAMS ((struct type *, struct type *));
 615
 616 extern struct type *
 617 lookup_unsigned_typename PARAMS ((char *));
 618
 619 extern struct type *
 620 lookup_signed_typename PARAMS ((char *));
 621
 622 extern void
 623 check_stub_type PARAMS ((struct type *));
 624
 625 extern void
 626 check_stub_method PARAMS ((struct type *, int, int));
 627
 628 extern struct type *
 629 lookup_primitive_typename PARAMS ((char *));
 630
 631 extern char *
 632 gdb_mangle_name PARAMS ((struct type *, int, int));
 633
 634 extern struct type *
 635 builtin_type PARAMS ((char **));
 636
 637 extern struct type *
 638 lookup_typename PARAMS ((char *, struct block *, int));
 639
 640 extern struct type *
 641 lookup_template_type PARAMS ((char *, struct type *, struct block *));
 642
 643 extern struct type *
 644 lookup_fundamental_type PARAMS ((struct objfile *, int));
 645
 646 extern void
 647 fill_in_vptr_fieldno PARAMS ((struct type *));
 648
 649 #if MAINTENANCE_CMDS
 650 extern void recursive_dump_type PARAMS ((struct type *, int));
 651 #endif
 652
 653 /* printcmd.c */
 654
 655 extern void
 656 print_scalar_formatted PARAMS ((char *, struct type *, int, int, FILE *));
 657
 658 #if MAINTENANCE_CMDS
 659 extern void maintenance_print_type PARAMS ((char *, int));
 660 #endif
 661
 662 #endif  /* GDBTYPES_H */