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 (e.g., 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      One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 155      the name to use to look for definitions in other files.  */
 156
 157   char *tag_name;
 158
 159   /* Length, in units of TARGET_CHAR_BIT bits,
 160      of storage for a value of this type */
 161
 162   unsigned length;
 163
 164   /* Every type is now associated with a particular objfile, and the
 165      type is allocated on the type_obstack for that objfile.  One problem
 166      however, is that there are times when gdb allocates new types while
 167      it is not in the process of reading symbols from a particular objfile.
 168      Fortunately, these happen when the type being created is a derived
 169      type of an existing type, such as in lookup_pointer_type().  So
 170      we can just allocate the new type using the same objfile as the
 171      existing type, but to do this we need a backpointer to the objfile
 172      from the existing type.  Yes this is somewhat ugly, but without
 173      major overhaul of the internal type system, it can't be avoided
 174      for now. */
 175
 176   struct objfile *objfile;
 177
 178   /* For a pointer type, describes the type of object pointed to.
 179      For an array type, describes the type of the elements.
 180      For a function or method type, describes the type of the return value.
 181      For a range type, describes the type of the full range.
 182      Unused otherwise.  */
 183
 184   struct type *target_type;
 185
 186   /* Type that is a pointer to this type.
 187      NULL if no such pointer-to type is known yet.
 188      The debugger may add the address of such a type
 189      if it has to construct one later.  */
 190
 191   struct type *pointer_type;
 192
 193   /* C++: also need a reference type.  */
 194
 195   struct type *reference_type;
 196
 197   /* Type that is a function returning this type.
 198      NULL if no such function type is known here.
 199      The debugger may add the address of such a type
 200      if it has to construct one later.  */
 201
 202   struct type *function_type;
 203
 204   /* Flags about this type.  */
 205
 206   short flags;
 207
 208   /* Number of fields described for this type */
 209
 210   short nfields;
 211
 212   /* For structure and union types, a description of each field.
 213      For set and pascal array types, there is one "field",
 214      whose type is the domain type of the set or array.
 215      For range types, there are two "fields",
 216      the minimum and maximum values (both inclusive).
 217      For enum types, each possible value is described by one "field".
 218      For C++ classes, there is one field for each base class (if it is
 219      a derived class) plus one field for each class data member.  Member
 220      functions are recorded elsewhere.
 221
 222      Using a pointer to a separate array of fields
 223      allows all types to have the same size, which is useful
 224      because we can allocate the space for a type before
 225      we know what to put in it.  */
 226
 227   struct field
 228     {
 229
 230       /* Position of this field, counting in bits from start of
 231          containing structure.  For a function type, this is the
 232          position in the argument list of this argument.
 233          For a range bound or enum value, this is the value itself.
 234          (FIXME:  What about ranges larger than host int size?)
 235          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 236          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
 237
 238       int bitpos;
 239
 240       /* Size of this field, in bits, or zero if not packed.
 241          For an unpacked field, the field's type's length
 242          says how many bytes the field occupies.  */
 243       /* FIXME: This is abused by TYPE_FIELD_STATIC_PHYSNAME to contain
 244          a pointer, so it has to be long.  */
 245
 246       long bitsize;
 247
 248       /* In a struct or enum type, type of this field.
 249          In a function type, type of this argument.
 250          In an array type, the domain-type of the array.  */
 251
 252       struct type *type;
 253
 254       /* Name of field, value or argument.
 255          NULL for range bounds and array domains.  */
 256
 257       char *name;
 258
 259     } *fields;
 260
 261   /* For types with virtual functions, VPTR_BASETYPE is the base class which
 262      defined the virtual function table pointer.
 263
 264      For types that are pointer to member types, VPTR_BASETYPE
 265      is the type that this pointer is a member of.
 266
 267      Unused otherwise.  */
 268
 269   struct type *vptr_basetype;
 270
 271   /* Field number of the virtual function table pointer in
 272      VPTR_BASETYPE.  If -1, we were unable to find the virtual
 273      function table pointer in initial symbol reading, and
 274      fill_in_vptr_fieldno should be called to find it if possible.
 275
 276      Unused if this type does not have virtual functions.  */
 277
 278   int vptr_fieldno;
 279
 280   /* Slot to point to additional language-specific fields of this type.  */
 281
 282   union type_specific
 283     {
 284
 285       /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC.  */
 286
 287       struct type **arg_types;
 288
 289       /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 290          cplus_struct_default, a default static instance of a struct
 291          cplus_struct_type. */
 292
 293       struct cplus_struct_type *cplus_stuff;
 294
 295     } type_specific;
 296 };
 297
 298 #define NULL_TYPE ((struct type *) 0)
 299
 300 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 301    nodes.  */
 302
 303 struct cplus_struct_type
 304 {
 305   /* Number of base classes this type derives from.  The baseclasses are
 306      stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 307      the struct type).  I think only the `type' field of such a field has
 308      any meaning.  */
 309
 310   short n_baseclasses;
 311
 312   /* Number of methods with unique names.  All overloaded methods with
 313      the same name count only once. */
 314
 315   short nfn_fields;
 316
 317   /* Number of methods described for this type plus all the
 318      methods that it derives from.  */
 319
 320   int nfn_fields_total;
 321
 322   /* For derived classes, the number of base classes is given by n_baseclasses
 323      and virtual_field_bits is a bit vector containing one bit per base class.
 324      If the base class is virtual, the corresponding bit will be set.
 325      I.E, given:
 326
 327         class A{};
 328         class B{};
 329         class C : public B, public virtual A {};
 330
 331      B is a baseclass of C; A is a virtual baseclass for C.
 332      This is a C++ 2.0 language feature. */
 333
 334   B_TYPE *virtual_field_bits;
 335
 336   /* For classes with private fields, the number of fields is given by
 337      nfields and private_field_bits is a bit vector containing one bit
 338      per field.
 339      If the field is private, the corresponding bit will be set. */
 340
 341   B_TYPE *private_field_bits;
 342
 343   /* For classes with protected fields, the number of fields is given by
 344      nfields and protected_field_bits is a bit vector containing one bit
 345      per field.
 346      If the field is private, the corresponding bit will be set. */
 347
 348   B_TYPE *protected_field_bits;
 349
 350   /* For classes, structures, and unions, a description of each field,
 351      which consists of an overloaded name, followed by the types of
 352      arguments that the method expects, and then the name after it
 353      has been renamed to make it distinct.
 354
 355      fn_fieldlists points to an array of nfn_fields of these. */
 356
 357   struct fn_fieldlist
 358     {
 359
 360       /* The overloaded name.  */
 361
 362       char *name;
 363
 364       /* The number of methods with this name.  */
 365
 366       int length;
 367
 368       /* The list of methods.  */
 369
 370       struct fn_field
 371         {
 372
 373           /* If is_stub is clear, this is the mangled name which we can
 374              look up to find the address of the method (FIXME: it would
 375              be cleaner to have a pointer to the struct symbol here
 376              instead).  */
 377
 378           /* If is_stub is set, this is the portion of the mangled
 379              name which specifies the arguments.  For example, "ii",
 380              if there are two int arguments, or "" if there are no
 381              arguments.  See gdb_mangle_name for the conversion from this
 382              format to the one used if is_stub is clear.  */
 383
 384           char *physname;
 385
 386           /* The return value of the method */
 387
 388           struct type *type;
 389
 390           /* The argument list.  Only valid if is_stub is clear.  Contains
 391              the type of each argument, including `this', and ending with
 392              a NULL pointer after the last argument.  */
 393
 394           struct type **args;
 395
 396           /* For virtual functions.
 397              First baseclass that defines this virtual function.   */
 398
 399           struct type *fcontext;
 400
 401           /* Attributes. */
 402
 403           unsigned int is_const : 1;
 404           unsigned int is_volatile : 1;
 405           unsigned int is_private : 1;
 406           unsigned int is_protected : 1;
 407
 408           /* A stub method only has some fields valid (but they are enough
 409              to reconstruct the rest of the fields).  */
 410           unsigned int is_stub : 1;
 411
 412           /* Unused.  */
 413           unsigned int dummy : 3;
 414
 415           /* Index into that baseclass's virtual function table,
 416              minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 417
 418           unsigned int voffset : 24;
 419
 420 #         define VOFFSET_STATIC 1
 421
 422         } *fn_fields;
 423
 424     } *fn_fieldlists;
 425
 426 };
 427
 428 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 429    this shared static structure. */
 430
 431 extern const struct cplus_struct_type cplus_struct_default;
 432
 433 extern void
 434 allocate_cplus_struct_type PARAMS ((struct type *));
 435
 436 #define INIT_CPLUS_SPECIFIC(type) \
 437   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 438 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 439 #define HAVE_CPLUS_STRUCT(type) \
 440   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 441
 442 #define TYPE_NAME(thistype) (thistype)->name
 443 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 444 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 445 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 446 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 447 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
 448 #define TYPE_LENGTH(thistype) (thistype)->length
 449 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 450 #define TYPE_FLAGS(thistype) (thistype)->flags
 451 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 452 #define TYPE_CODE(thistype) (thistype)->code
 453 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 454 #define TYPE_FIELDS(thistype) (thistype)->fields
 455
 456 /* C++ */
 457
 458 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 459 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 460 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 461 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 462 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 463 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 464 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 465 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 466 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 467 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 468 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 469 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 470 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
 471 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
 472 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 473   B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
 474
 475 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 476 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
 477 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
 478 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
 479 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
 480 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
 481 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
 482
 483 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 484   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 485 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 486   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 487 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 488   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 489 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 490   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 491 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 492   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 493 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 494   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 495 #define TYPE_FIELD_PRIVATE(thistype, n) \
 496   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 497     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 498 #define TYPE_FIELD_PROTECTED(thistype, n) \
 499   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 500     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 501 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 502        B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 503
 504 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
 505 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
 506
 507 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 508 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 509 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 510 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 511 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 512
 513 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 514 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 515 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 516 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 517 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 518 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 519 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 520 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 521 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 522 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 523 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 524 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 525 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 526
 527 extern struct type *builtin_type_void;
 528 extern struct type *builtin_type_char;
 529 extern struct type *builtin_type_short;
 530 extern struct type *builtin_type_int;
 531 extern struct type *builtin_type_long;
 532 extern struct type *builtin_type_signed_char;
 533 extern struct type *builtin_type_unsigned_char;
 534 extern struct type *builtin_type_unsigned_short;
 535 extern struct type *builtin_type_unsigned_int;
 536 extern struct type *builtin_type_unsigned_long;
 537 extern struct type *builtin_type_float;
 538 extern struct type *builtin_type_double;
 539 extern struct type *builtin_type_long_double;
 540 extern struct type *builtin_type_complex;
 541 extern struct type *builtin_type_double_complex;
 542 extern struct type *builtin_type_string;
 543
 544 /* This type represents a type that was unrecognized in symbol
 545    read-in.  */
 546
 547 extern struct type *builtin_type_error;
 548
 549 extern struct type *builtin_type_long_long;
 550 extern struct type *builtin_type_unsigned_long_long;
 551
 552 /* Modula-2 types */
 553
 554 extern struct type *builtin_type_m2_char;
 555 extern struct type *builtin_type_m2_int;
 556 extern struct type *builtin_type_m2_card;
 557 extern struct type *builtin_type_m2_real;
 558 extern struct type *builtin_type_m2_bool;
 559
 560 /* Chill types */
 561
 562 extern struct type *builtin_type_chill_bool;
 563 extern struct type *builtin_type_chill_char;
 564 extern struct type *builtin_type_chill_long;
 565 extern struct type *builtin_type_chill_ulong;
 566 extern struct type *builtin_type_chill_real;
 567
 568 /* CC_HAS_LONG_LONG is defined if the host has "long long".  */
 569
 570 #ifdef CC_HAS_LONG_LONG
 571
 572 #define BUILTIN_TYPE_LONGEST builtin_type_long_long
 573 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long
 574
 575 #else /* not CC_HAS_LONG_LONG.  */
 576
 577 #define BUILTIN_TYPE_LONGEST builtin_type_long
 578 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long
 579
 580 #endif /* not CC_HAS_LONG_LONG.  */
 581
 582 /* Maximum and minimum values of built-in types */
 583
 584 #define MAX_OF_TYPE(t)  \
 585    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 586     : MAX_OF_SIZE(TYPE_LENGTH(t))
 587
 588 #define MIN_OF_TYPE(t)  \
 589    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 590     : MIN_OF_SIZE(TYPE_LENGTH(t))
 591
 592 /* Allocate space for storing data associated with a particular type.
 593    We ensure that the space is allocated using the same mechanism that
 594    was used to allocate the space for the type structure itself.  I.E.
 595    if the type is on an objfile's type_obstack, then the space for data
 596    associated with that type will also be allocated on the type_obstack.
 597    If the type is not associated with any particular objfile (such as
 598    builtin types), then the data space will be allocated with xmalloc,
 599    the same as for the type structure. */
 600
 601 #define TYPE_ALLOC(t,size)  \
 602    (TYPE_OBJFILE (t) != NULL  \
 603     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 604     : xmalloc (size))
 605
 606 extern struct type *
 607 alloc_type PARAMS ((struct objfile *));
 608
 609 extern struct type *
 610 init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 611
 612 extern struct type *
 613 lookup_reference_type PARAMS ((struct type *));
 614
 615 extern struct type *
 616 make_reference_type PARAMS ((struct type *, struct type **));
 617
 618 extern struct type *
 619 lookup_member_type PARAMS ((struct type *, struct type *));
 620
 621 extern void
 622 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 623                               struct type **));
 624
 625 extern void
 626 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 627
 628 extern struct type *
 629 allocate_stub_method PARAMS ((struct type *));
 630
 631 extern char *
 632 type_name_no_tag PARAMS ((const struct type *));
 633
 634 extern struct type *
 635 lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 636
 637 extern struct type *
 638 make_pointer_type PARAMS ((struct type *, struct type **));
 639
 640 extern struct type *
 641 lookup_pointer_type PARAMS ((struct type *));
 642
 643 extern struct type *
 644 make_function_type PARAMS ((struct type *, struct type **));
 645
 646 extern struct type *
 647 lookup_function_type PARAMS ((struct type *));
 648
 649 extern struct type *
 650 create_range_type PARAMS ((struct type *, struct type *, int, int));
 651
 652 extern struct type *
 653 create_array_type PARAMS ((struct type *, struct type *, struct type *));
 654
 655 extern struct type *
 656 create_string_type PARAMS ((struct type *, struct type *));
 657
 658 extern struct type *
 659 lookup_unsigned_typename PARAMS ((char *));
 660
 661 extern struct type *
 662 lookup_signed_typename PARAMS ((char *));
 663
 664 extern void
 665 check_stub_type PARAMS ((struct type *));
 666
 667 extern void
 668 check_stub_method PARAMS ((struct type *, int, int));
 669
 670 extern struct type *
 671 lookup_primitive_typename PARAMS ((char *));
 672
 673 extern char *
 674 gdb_mangle_name PARAMS ((struct type *, int, int));
 675
 676 extern struct type *
 677 builtin_type PARAMS ((char **));
 678
 679 extern struct type *
 680 lookup_typename PARAMS ((char *, struct block *, int));
 681
 682 extern struct type *
 683 lookup_template_type PARAMS ((char *, struct type *, struct block *));
 684
 685 extern struct type *
 686 lookup_fundamental_type PARAMS ((struct objfile *, int));
 687
 688 extern void
 689 fill_in_vptr_fieldno PARAMS ((struct type *));
 690
 691 #if MAINTENANCE_CMDS
 692 extern void recursive_dump_type PARAMS ((struct type *, int));
 693 #endif
 694
 695 /* printcmd.c */
 696
 697 extern void
 698 print_scalar_formatted PARAMS ((char *, struct type *, int, int, FILE *));
 699
 700 #if MAINTENANCE_CMDS
 701 extern void maintenance_print_type PARAMS ((char *, int));
 702 #endif
 703
 704 #endif  /* GDBTYPES_H */