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
 141      This is used for printing only, except by poorly designed C++ code.
 142      For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 143
 144   char *name;
 145
 146   /* Tag name for this type, or NULL if none.  This means that the
 147      name of the type consists of a keyword followed by the tag name.
 148      Which keyword is determined by the type code ("struct" for
 149      TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 150      with this feature.
 151
 152      This is used for printing only, except by poorly designed C++ code.
 153      For looking up a name, look for a symbol in the STRUCT_NAMESPACE.  */
 154
 155   char *tag_name;
 156
 157   /* Length, in units of TARGET_CHAR_BIT bits,
 158      of storage for a value of this type */
 159
 160   unsigned length;
 161
 162   /* Every type is now associated with a particular objfile, and the
 163      type is allocated on the type_obstack for that objfile.  One problem
 164      however, is that there are times when gdb allocates new types while
 165      it is not in the process of reading symbols from a particular objfile.
 166      Fortunately, these happen when the type being created is a derived
 167      type of an existing type, such as in lookup_pointer_type().  So
 168      we can just allocate the new type using the same objfile as the
 169      existing type, but to do this we need a backpointer to the objfile
 170      from the existing type.  Yes this is somewhat ugly, but without
 171      major overhaul of the internal type system, it can't be avoided
 172      for now. */
 173
 174   struct objfile *objfile;
 175
 176   /* For a pointer type, describes the type of object pointed to.
 177      For an array type, describes the type of the elements.
 178      For a function or method type, describes the type of the return value.
 179      For a range type, describes the type of the full range.
 180      Unused otherwise.  */
 181
 182   struct type *target_type;
 183
 184   /* Type that is a pointer to this type.
 185      NULL if no such pointer-to type is known yet.
 186      The debugger may add the address of such a type
 187      if it has to construct one later.  */
 188
 189   struct type *pointer_type;
 190
 191   /* C++: also need a reference type.  */
 192
 193   struct type *reference_type;
 194
 195   /* Type that is a function returning this type.
 196      NULL if no such function type is known here.
 197      The debugger may add the address of such a type
 198      if it has to construct one later.  */
 199
 200   struct type *function_type;
 201
 202   /* Flags about this type.  */
 203
 204   short flags;
 205
 206   /* Number of fields described for this type */
 207
 208   short nfields;
 209
 210   /* For structure and union types, a description of each field.
 211      For set and pascal array types, there is one "field",
 212      whose type is the domain type of the set or array.
 213      For range types, there are two "fields",
 214      the minimum and maximum values (both inclusive).
 215      For enum types, each possible value is described by one "field".
 216      For C++ classes, there is one field for each base class (if it is
 217      a derived class) plus one field for each class data member.  Member
 218      functions are recorded elsewhere.
 219
 220      Using a pointer to a separate array of fields
 221      allows all types to have the same size, which is useful
 222      because we can allocate the space for a type before
 223      we know what to put in it.  */
 224
 225   struct field
 226     {
 227
 228       /* Position of this field, counting in bits from start of
 229          containing structure.  For a function type, this is the
 230          position in the argument list of this argument.
 231          For a range bound or enum value, this is the value itself.
 232          (FIXME:  What about ranges larger than host int size?)
 233          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 234          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
 235
 236       int bitpos;
 237
 238       /* Size of this field, in bits, or zero if not packed.
 239          For an unpacked field, the field's type's length
 240          says how many bytes the field occupies.  */
 241
 242       int bitsize;
 243
 244       /* In a struct or enum type, type of this field.
 245          In a function type, type of this argument.
 246          In an array type, the domain-type of the array.  */
 247
 248       struct type *type;
 249
 250       /* Name of field, value or argument.
 251          NULL for range bounds and array domains.  */
 252
 253       char *name;
 254
 255     } *fields;
 256
 257   /* For types with virtual functions, VPTR_BASETYPE is the base class which
 258      defined the virtual function table pointer.
 259
 260      For types that are pointer to member types, VPTR_BASETYPE
 261      is the type that this pointer is a member of.
 262
 263      Unused otherwise.  */
 264
 265   struct type *vptr_basetype;
 266
 267   /* Field number of the virtual function table pointer in
 268      VPTR_BASETYPE.  If -1, we were unable to find the virtual
 269      function table pointer in initial symbol reading, and
 270      fill_in_vptr_fieldno should be called to find it if possible.
 271
 272      Unused if this type does not have virtual functions.  */
 273
 274   int vptr_fieldno;
 275
 276   /* Slot to point to additional language-specific fields of this type.  */
 277
 278   union type_specific
 279     {
 280
 281       /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC.  */
 282
 283       struct type **arg_types;
 284
 285       /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 286          cplus_struct_default, a default static instance of a struct
 287          cplus_struct_type. */
 288
 289       struct cplus_struct_type *cplus_stuff;
 290
 291     } type_specific;
 292 };
 293
 294 #define NULL_TYPE ((struct type *) 0)
 295
 296 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 297    nodes.  */
 298
 299 struct cplus_struct_type
 300 {
 301   /* Number of base classes this type derives from.  The baseclasses are
 302      stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 303      the struct type).  I think only the `type' field of such a field has
 304      any meaning.  */
 305
 306   short n_baseclasses;
 307
 308   /* Number of methods with unique names.  All overloaded methods with
 309      the same name count only once. */
 310
 311   short nfn_fields;
 312
 313   /* Number of methods described for this type plus all the
 314      methods that it derives from.  */
 315
 316   int nfn_fields_total;
 317
 318   /* For derived classes, the number of base classes is given by n_baseclasses
 319      and virtual_field_bits is a bit vector containing one bit per base class.
 320      If the base class is virtual, the corresponding bit will be set.
 321      I.E, given:
 322
 323         class A{};
 324         class B{};
 325         class C : public B, public virtual A {};
 326
 327      B is a baseclass of C; A is a virtual baseclass for C.
 328      This is a C++ 2.0 language feature. */
 329
 330   B_TYPE *virtual_field_bits;
 331
 332   /* For classes with private fields, the number of fields is given by
 333      nfields and private_field_bits is a bit vector containing one bit
 334      per field.
 335      If the field is private, the corresponding bit will be set. */
 336
 337   B_TYPE *private_field_bits;
 338
 339   /* For classes with protected fields, the number of fields is given by
 340      nfields and protected_field_bits is a bit vector containing one bit
 341      per field.
 342      If the field is private, the corresponding bit will be set. */
 343
 344   B_TYPE *protected_field_bits;
 345
 346   /* For classes, structures, and unions, a description of each field,
 347      which consists of an overloaded name, followed by the types of
 348      arguments that the method expects, and then the name after it
 349      has been renamed to make it distinct.
 350
 351      fn_fieldlists points to an array of nfn_fields of these. */
 352
 353   struct fn_fieldlist
 354     {
 355
 356       /* The overloaded name.  */
 357
 358       char *name;
 359
 360       /* The number of methods with this name.  */
 361
 362       int length;
 363
 364       /* The list of methods.  */
 365
 366       struct fn_field
 367         {
 368
 369           /* If is_stub is clear, this is the mangled name which we can
 370              look up to find the address of the method (FIXME: it would
 371              be cleaner to have a pointer to the struct symbol here
 372              instead).  */
 373
 374           /* If is_stub is set, this is the portion of the mangled
 375              name which specifies the arguments.  For example, "ii",
 376              if there are two int arguments, or "" if there are no
 377              arguments.  See gdb_mangle_name for the conversion from this
 378              format to the one used if is_stub is clear.  */
 379
 380           char *physname;
 381
 382           /* The return value of the method */
 383
 384           struct type *type;
 385
 386           /* The argument list.  Only valid if is_stub is clear.  Contains
 387              the type of each argument, including `this', and ending with
 388              a NULL pointer after the last argument.  */
 389
 390           struct type **args;
 391
 392           /* For virtual functions.
 393              First baseclass that defines this virtual function.   */
 394
 395           struct type *fcontext;
 396
 397           /* Attributes. */
 398
 399           unsigned int is_const : 1;
 400           unsigned int is_volatile : 1;
 401           unsigned int is_private : 1;
 402           unsigned int is_protected : 1;
 403
 404           /* A stub method only has some fields valid (but they are enough
 405              to reconstruct the rest of the fields).  */
 406           unsigned int is_stub : 1;
 407
 408           /* Unused.  */
 409           unsigned int dummy : 3;
 410
 411           /* Index into that baseclass's virtual function table,
 412              minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 413
 414           unsigned int voffset : 24;
 415
 416 #         define VOFFSET_STATIC 1
 417
 418         } *fn_fields;
 419
 420     } *fn_fieldlists;
 421
 422 };
 423
 424 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 425    this shared static structure. */
 426
 427 extern const struct cplus_struct_type cplus_struct_default;
 428
 429 extern void
 430 allocate_cplus_struct_type PARAMS ((struct type *));
 431
 432 #define INIT_CPLUS_SPECIFIC(type) \
 433   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 434 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 435 #define HAVE_CPLUS_STRUCT(type) \
 436   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 437
 438 #define TYPE_NAME(thistype) (thistype)->name
 439 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 440 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 441 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 442 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 443 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
 444 #define TYPE_LENGTH(thistype) (thistype)->length
 445 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 446 #define TYPE_FLAGS(thistype) (thistype)->flags
 447 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 448 #define TYPE_CODE(thistype) (thistype)->code
 449 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 450 #define TYPE_FIELDS(thistype) (thistype)->fields
 451
 452 /* C++ */
 453
 454 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 455 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 456 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 457 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 458 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 459 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 460 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 461 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 462 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 463 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 464 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 465 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 466 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
 467 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
 468 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 469   B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
 470
 471 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 472 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
 473 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
 474 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
 475 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
 476 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
 477 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
 478
 479 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 480   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 481 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 482   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 483 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 484   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 485 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 486   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 487 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 488   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 489 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 490   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 491 #define TYPE_FIELD_PRIVATE(thistype, n) \
 492   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 493     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 494 #define TYPE_FIELD_PROTECTED(thistype, n) \
 495   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 496     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 497 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 498        B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 499
 500 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
 501 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
 502
 503 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 504 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 505 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 506 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 507 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 508
 509 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 510 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 511 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 512 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 513 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 514 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 515 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 516 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 517 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 518 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 519 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 520 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 521 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 522
 523 extern struct type *builtin_type_void;
 524 extern struct type *builtin_type_char;
 525 extern struct type *builtin_type_short;
 526 extern struct type *builtin_type_int;
 527 extern struct type *builtin_type_long;
 528 extern struct type *builtin_type_signed_char;
 529 extern struct type *builtin_type_unsigned_char;
 530 extern struct type *builtin_type_unsigned_short;
 531 extern struct type *builtin_type_unsigned_int;
 532 extern struct type *builtin_type_unsigned_long;
 533 extern struct type *builtin_type_float;
 534 extern struct type *builtin_type_double;
 535 extern struct type *builtin_type_long_double;
 536 extern struct type *builtin_type_complex;
 537 extern struct type *builtin_type_double_complex;
 538 extern struct type *builtin_type_string;
 539
 540 /* This type represents a type that was unrecognized in symbol
 541    read-in.  */
 542
 543 extern struct type *builtin_type_error;
 544
 545 extern struct type *builtin_type_long_long;
 546 extern struct type *builtin_type_unsigned_long_long;
 547
 548 /* Modula-2 types */
 549
 550 extern struct type *builtin_type_m2_char;
 551 extern struct type *builtin_type_m2_int;
 552 extern struct type *builtin_type_m2_card;
 553 extern struct type *builtin_type_m2_real;
 554 extern struct type *builtin_type_m2_bool;
 555
 556 /* Chill types */
 557
 558 extern struct type *builtin_type_chill_bool;
 559 extern struct type *builtin_type_chill_char;
 560 extern struct type *builtin_type_chill_long;
 561 extern struct type *builtin_type_chill_ulong;
 562 extern struct type *builtin_type_chill_real;
 563
 564 /* CC_HAS_LONG_LONG is defined if the host has "long long".  */
 565
 566 #ifdef CC_HAS_LONG_LONG
 567
 568 #define BUILTIN_TYPE_LONGEST builtin_type_long_long
 569 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long
 570
 571 #else /* not CC_HAS_LONG_LONG.  */
 572
 573 #define BUILTIN_TYPE_LONGEST builtin_type_long
 574 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long
 575
 576 #endif /* not CC_HAS_LONG_LONG.  */
 577
 578 /* Maximum and minimum values of built-in types */
 579
 580 #define MAX_OF_TYPE(t)  \
 581    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 582     : MAX_OF_SIZE(TYPE_LENGTH(t))
 583
 584 #define MIN_OF_TYPE(t)  \
 585    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 586     : MIN_OF_SIZE(TYPE_LENGTH(t))
 587
 588 /* Allocate space for storing data associated with a particular type.
 589    We ensure that the space is allocated using the same mechanism that
 590    was used to allocate the space for the type structure itself.  I.E.
 591    if the type is on an objfile's type_obstack, then the space for data
 592    associated with that type will also be allocated on the type_obstack.
 593    If the type is not associated with any particular objfile (such as
 594    builtin types), then the data space will be allocated with xmalloc,
 595    the same as for the type structure. */
 596
 597 #define TYPE_ALLOC(t,size)  \
 598    (TYPE_OBJFILE (t) != NULL  \
 599     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 600     : xmalloc (size))
 601
 602 extern struct type *
 603 alloc_type PARAMS ((struct objfile *));
 604
 605 extern struct type *
 606 init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 607
 608 extern struct type *
 609 lookup_reference_type PARAMS ((struct type *));
 610
 611 extern struct type *
 612 make_reference_type PARAMS ((struct type *, struct type **));
 613
 614 extern struct type *
 615 lookup_member_type PARAMS ((struct type *, struct type *));
 616
 617 extern void
 618 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 619                               struct type **));
 620
 621 extern void
 622 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 623
 624 extern struct type *
 625 allocate_stub_method PARAMS ((struct type *));
 626
 627 extern char *
 628 type_name_no_tag PARAMS ((const struct type *));
 629
 630 extern struct type *
 631 lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 632
 633 extern struct type *
 634 make_pointer_type PARAMS ((struct type *, struct type **));
 635
 636 extern struct type *
 637 lookup_pointer_type PARAMS ((struct type *));
 638
 639 extern struct type *
 640 make_function_type PARAMS ((struct type *, struct type **));
 641
 642 extern struct type *
 643 lookup_function_type PARAMS ((struct type *));
 644
 645 extern struct type *
 646 create_range_type PARAMS ((struct type *, struct type *, int, int));
 647
 648 extern struct type *
 649 create_array_type PARAMS ((struct type *, struct type *, struct type *));
 650
 651 extern struct type *
 652 create_string_type PARAMS ((struct type *, struct type *));
 653
 654 extern struct type *
 655 lookup_unsigned_typename PARAMS ((char *));
 656
 657 extern struct type *
 658 lookup_signed_typename PARAMS ((char *));
 659
 660 extern void
 661 check_stub_type PARAMS ((struct type *));
 662
 663 extern void
 664 check_stub_method PARAMS ((struct type *, int, int));
 665
 666 extern struct type *
 667 lookup_primitive_typename PARAMS ((char *));
 668
 669 extern char *
 670 gdb_mangle_name PARAMS ((struct type *, int, int));
 671
 672 extern struct type *
 673 builtin_type PARAMS ((char **));
 674
 675 extern struct type *
 676 lookup_typename PARAMS ((char *, struct block *, int));
 677
 678 extern struct type *
 679 lookup_template_type PARAMS ((char *, struct type *, struct block *));
 680
 681 extern struct type *
 682 lookup_fundamental_type PARAMS ((struct objfile *, int));
 683
 684 extern void
 685 fill_in_vptr_fieldno PARAMS ((struct type *));
 686
 687 #if MAINTENANCE_CMDS
 688 extern void recursive_dump_type PARAMS ((struct type *, int));
 689 #endif
 690
 691 /* printcmd.c */
 692
 693 extern void
 694 print_scalar_formatted PARAMS ((char *, struct type *, int, int, FILE *));
 695
 696 #if MAINTENANCE_CMDS
 697 extern void maintenance_print_type PARAMS ((char *, int));
 698 #endif
 699
 700 #endif  /* GDBTYPES_H */