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 /* Codes for `fundamental types'.  This is a monstrosity based on the
  25    bogus notion that there are certain compiler-independent
  26    `fundamental types'.  None of these is well-defined (how big is
  27    FT_SHORT?  Does it depend on the language?  How does the
  28    language-specific code know which type to correlate to FT_SHORT?)  */
  29
  30 #define FT_VOID                 0
  31 #define FT_BOOLEAN              1
  32 #define FT_CHAR                 2
  33 #define FT_SIGNED_CHAR          3
  34 #define FT_UNSIGNED_CHAR        4
  35 #define FT_SHORT                5
  36 #define FT_SIGNED_SHORT         6
  37 #define FT_UNSIGNED_SHORT       7
  38 #define FT_INTEGER              8
  39 #define FT_SIGNED_INTEGER       9
  40 #define FT_UNSIGNED_INTEGER     10
  41 #define FT_LONG                 11
  42 #define FT_SIGNED_LONG          12
  43 #define FT_UNSIGNED_LONG        13
  44 #define FT_LONG_LONG            14
  45 #define FT_SIGNED_LONG_LONG     15
  46 #define FT_UNSIGNED_LONG_LONG   16
  47 #define FT_FLOAT                17
  48 #define FT_DBL_PREC_FLOAT       18
  49 #define FT_EXT_PREC_FLOAT       19
  50 #define FT_COMPLEX              20
  51 #define FT_DBL_PREC_COMPLEX     21
  52 #define FT_EXT_PREC_COMPLEX     22
  53 #define FT_STRING               23
  54 #define FT_FIXED_DECIMAL        24
  55 #define FT_FLOAT_DECIMAL        25
  56 #define FT_BYTE                 26
  57 #define FT_UNSIGNED_BYTE        27
  58
  59 #define FT_NUM_MEMBERS          28      /* Highest FT_* above, plus one. */
  60
  61 /* Some macros for char-based bitfields.  */
  62
  63 #define B_SET(a,x)      ((a)[(x)>>3] |= (1 << ((x)&7)))
  64 #define B_CLR(a,x)      ((a)[(x)>>3] &= ~(1 << ((x)&7)))
  65 #define B_TST(a,x)      ((a)[(x)>>3] & (1 << ((x)&7)))
  66 #define B_TYPE          unsigned char
  67 #define B_BYTES(x)      ( 1 + ((x)>>3) )
  68 #define B_CLRALL(a,x)   memset ((a), 0, B_BYTES(x))
  69
  70 /* Different kinds of data types are distinguished by the `code' field.  */
  71
  72 enum type_code
  73 {
  74   TYPE_CODE_UNDEF,              /* Not used; catches errors */
  75   TYPE_CODE_PTR,                /* Pointer type */
  76   TYPE_CODE_ARRAY,              /* Array type with lower & upper bounds. */
  77   TYPE_CODE_STRUCT,             /* C struct or Pascal record */
  78   TYPE_CODE_UNION,              /* C union or Pascal variant part */
  79   TYPE_CODE_ENUM,               /* Enumeration type */
  80   TYPE_CODE_FUNC,               /* Function type */
  81   TYPE_CODE_INT,                /* Integer type */
  82
  83   /* Floating type.  This is *NOT* a complex type.  Complex types, when
  84      we have them, will have their own type code (or TYPE_CODE_ERROR if
  85      we can parse a complex type but not manipulate it).  There are parts
  86      of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  87   TYPE_CODE_FLT,
  88
  89   /* Void type (values zero length; the length field is ignored).  */
  90   TYPE_CODE_VOID,
  91
  92   TYPE_CODE_SET,                /* Pascal sets */
  93   TYPE_CODE_RANGE,              /* Range (integers within spec'd bounds) */
  94
  95   /* A string type which is like an array of character but prints
  96      differently (at least for CHILL).  It does not contain a length
  97      field as Pascal strings (for many Pascals, anyway) do; if we want
  98      to deal with such strings, we should use a new type code.  */
  99   TYPE_CODE_STRING,
 100
 101   /* String of bits; like TYPE_CODE_SET but prints differently (at least
 102      for CHILL).  */
 103   TYPE_CODE_BITSTRING,
 104
 105   /* Unknown type.  The length field is valid if we were able to
 106      deduce that much about the type, or 0 if we don't even know that.  */
 107   TYPE_CODE_ERROR,
 108
 109   /* C++ */
 110   TYPE_CODE_MEMBER,             /* Member type */
 111   TYPE_CODE_METHOD,             /* Method type */
 112   TYPE_CODE_REF,                /* C++ Reference types */
 113
 114   TYPE_CODE_CHAR,               /* *real* character type */
 115
 116   /* Boolean type.  0 is false, 1 is true, and other values are non-boolean
 117      (e.g. FORTRAN "logical" used as unsigned int).  */
 118   TYPE_CODE_BOOL
 119 };
 120
 121 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 122    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 123    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 124    so that we can print "class" or "struct" depending on what the debug
 125    info said.  It's not clear we should bother.  */
 126
 127 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 128
 129 /* Some bits for the type's flags word. */
 130
 131 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 132    type is signed.  */
 133
 134 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 135
 136 /* This appears in a type's flags word if it is a stub type (e.g., if
 137    someone referenced a type that wasn't defined in a source file
 138    via (struct sir_not_appearing_in_this_film *)).  */
 139
 140 #define TYPE_FLAG_STUB          (1 << 2)
 141
 142 /* The target type of this type is a stub type, and this type needs to
 143    be updated if it gets un-stubbed in check_stub_type.  Currently only
 144    used for arrays, in which TYPE_LENGTH of the array gets set based
 145    on the TYPE_LENGTH of the target type.  */
 146
 147 #define TYPE_FLAG_TARGET_STUB (1 << 3)
 148
 149 struct type
 150 {
 151
 152   /* Code for kind of type */
 153
 154   enum type_code code;
 155
 156   /* Name of this type, or NULL if none.
 157
 158      This is used for printing only, except by poorly designed C++ code.
 159      For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 160
 161   char *name;
 162
 163   /* Tag name for this type, or NULL if none.  This means that the
 164      name of the type consists of a keyword followed by the tag name.
 165      Which keyword is determined by the type code ("struct" for
 166      TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 167      with this feature.
 168
 169      This is used for printing only, except by poorly designed C++ code.
 170      For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 171      One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 172      the name to use to look for definitions in other files.  */
 173
 174   char *tag_name;
 175
 176   /* Length, in units of TARGET_CHAR_BIT bits,
 177      of storage for a value of this type */
 178
 179   unsigned length;
 180
 181   /* Every type is now associated with a particular objfile, and the
 182      type is allocated on the type_obstack for that objfile.  One problem
 183      however, is that there are times when gdb allocates new types while
 184      it is not in the process of reading symbols from a particular objfile.
 185      Fortunately, these happen when the type being created is a derived
 186      type of an existing type, such as in lookup_pointer_type().  So
 187      we can just allocate the new type using the same objfile as the
 188      existing type, but to do this we need a backpointer to the objfile
 189      from the existing type.  Yes this is somewhat ugly, but without
 190      major overhaul of the internal type system, it can't be avoided
 191      for now. */
 192
 193   struct objfile *objfile;
 194
 195   /* For a pointer type, describes the type of object pointed to.
 196      For an array type, describes the type of the elements.
 197      For a function or method type, describes the type of the return value.
 198      For a range type, describes the type of the full range.
 199      Unused otherwise.  */
 200
 201   struct type *target_type;
 202
 203   /* Type that is a pointer to this type.
 204      NULL if no such pointer-to type is known yet.
 205      The debugger may add the address of such a type
 206      if it has to construct one later.  */
 207
 208   struct type *pointer_type;
 209
 210   /* C++: also need a reference type.  */
 211
 212   struct type *reference_type;
 213
 214   /* Type that is a function returning this type.
 215      NULL if no such function type is known here.
 216      The debugger may add the address of such a type
 217      if it has to construct one later.  */
 218
 219   struct type *function_type;
 220
 221   /* Flags about this type.  */
 222
 223   short flags;
 224
 225   /* Number of fields described for this type */
 226
 227   short nfields;
 228
 229   /* For structure and union types, a description of each field.
 230      For set and pascal array types, there is one "field",
 231      whose type is the domain type of the set or array.
 232      For range types, there are two "fields",
 233      the minimum and maximum values (both inclusive).
 234      For enum types, each possible value is described by one "field".
 235      For C++ classes, there is one field for each base class (if it is
 236      a derived class) plus one field for each class data member.  Member
 237      functions are recorded elsewhere.
 238
 239      Using a pointer to a separate array of fields
 240      allows all types to have the same size, which is useful
 241      because we can allocate the space for a type before
 242      we know what to put in it.  */
 243
 244   struct field
 245     {
 246
 247       /* Position of this field, counting in bits from start of
 248          containing structure.  For a function type, this is the
 249          position in the argument list of this argument.
 250          For a range bound or enum value, this is the value itself.
 251          (FIXME:  What about ranges larger than host int size?)
 252          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 253          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
 254
 255       int bitpos;
 256
 257       /* Size of this field, in bits, or zero if not packed.
 258          For an unpacked field, the field's type's length
 259          says how many bytes the field occupies.  */
 260       /* FIXME: This is abused by TYPE_FIELD_STATIC_PHYSNAME to contain
 261          a pointer, so it has to be long.  */
 262
 263       long bitsize;
 264
 265       /* In a struct or enum type, type of this field.
 266          In a function type, type of this argument.
 267          In an array type, the domain-type of the array.  */
 268
 269       struct type *type;
 270
 271       /* Name of field, value or argument.
 272          NULL for range bounds and array domains.  */
 273
 274       char *name;
 275
 276     } *fields;
 277
 278   /* For types with virtual functions, VPTR_BASETYPE is the base class which
 279      defined the virtual function table pointer.
 280
 281      For types that are pointer to member types, VPTR_BASETYPE
 282      is the type that this pointer is a member of.
 283
 284      Unused otherwise.  */
 285
 286   struct type *vptr_basetype;
 287
 288   /* Field number of the virtual function table pointer in
 289      VPTR_BASETYPE.  If -1, we were unable to find the virtual
 290      function table pointer in initial symbol reading, and
 291      fill_in_vptr_fieldno should be called to find it if possible.
 292
 293      Unused if this type does not have virtual functions.  */
 294
 295   int vptr_fieldno;
 296
 297   /* Slot to point to additional language-specific fields of this type.  */
 298
 299   union type_specific
 300     {
 301
 302       /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC.  */
 303
 304       struct type **arg_types;
 305
 306       /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 307          cplus_struct_default, a default static instance of a struct
 308          cplus_struct_type. */
 309
 310       struct cplus_struct_type *cplus_stuff;
 311
 312     } type_specific;
 313 };
 314
 315 #define NULL_TYPE ((struct type *) 0)
 316
 317 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 318    nodes.  */
 319
 320 struct cplus_struct_type
 321 {
 322   /* Number of base classes this type derives from.  The baseclasses are
 323      stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 324      the struct type).  I think only the `type' field of such a field has
 325      any meaning.  */
 326
 327   short n_baseclasses;
 328
 329   /* Number of methods with unique names.  All overloaded methods with
 330      the same name count only once. */
 331
 332   short nfn_fields;
 333
 334   /* Number of methods described for this type plus all the
 335      methods that it derives from.  */
 336
 337   int nfn_fields_total;
 338
 339   /* For derived classes, the number of base classes is given by n_baseclasses
 340      and virtual_field_bits is a bit vector containing one bit per base class.
 341      If the base class is virtual, the corresponding bit will be set.
 342      I.E, given:
 343
 344         class A{};
 345         class B{};
 346         class C : public B, public virtual A {};
 347
 348      B is a baseclass of C; A is a virtual baseclass for C.
 349      This is a C++ 2.0 language feature. */
 350
 351   B_TYPE *virtual_field_bits;
 352
 353   /* For classes with private fields, the number of fields is given by
 354      nfields and private_field_bits is a bit vector containing one bit
 355      per field.
 356      If the field is private, the corresponding bit will be set. */
 357
 358   B_TYPE *private_field_bits;
 359
 360   /* For classes with protected fields, the number of fields is given by
 361      nfields and protected_field_bits is a bit vector containing one bit
 362      per field.
 363      If the field is private, the corresponding bit will be set. */
 364
 365   B_TYPE *protected_field_bits;
 366
 367   /* for classes with fields to be ignored, either this is optimized out
 368      or this field has length 0 */
 369
 370   B_TYPE *ignore_field_bits;
 371
 372   /* For classes, structures, and unions, a description of each field,
 373      which consists of an overloaded name, followed by the types of
 374      arguments that the method expects, and then the name after it
 375      has been renamed to make it distinct.
 376
 377      fn_fieldlists points to an array of nfn_fields of these. */
 378
 379   struct fn_fieldlist
 380     {
 381
 382       /* The overloaded name.  */
 383
 384       char *name;
 385
 386       /* The number of methods with this name.  */
 387
 388       int length;
 389
 390       /* The list of methods.  */
 391
 392       struct fn_field
 393         {
 394
 395           /* If is_stub is clear, this is the mangled name which we can
 396              look up to find the address of the method (FIXME: it would
 397              be cleaner to have a pointer to the struct symbol here
 398              instead).  */
 399
 400           /* If is_stub is set, this is the portion of the mangled
 401              name which specifies the arguments.  For example, "ii",
 402              if there are two int arguments, or "" if there are no
 403              arguments.  See gdb_mangle_name for the conversion from this
 404              format to the one used if is_stub is clear.  */
 405
 406           char *physname;
 407
 408           /* The return value of the method */
 409
 410           struct type *type;
 411
 412           /* The argument list.  Only valid if is_stub is clear.  Contains
 413              the type of each argument, including `this', and ending with
 414              a NULL pointer after the last argument.  */
 415
 416           struct type **args;
 417
 418           /* For virtual functions.
 419              First baseclass that defines this virtual function.   */
 420
 421           struct type *fcontext;
 422
 423           /* Attributes. */
 424
 425           unsigned int is_const : 1;
 426           unsigned int is_volatile : 1;
 427           unsigned int is_private : 1;
 428           unsigned int is_protected : 1;
 429
 430           /* A stub method only has some fields valid (but they are enough
 431              to reconstruct the rest of the fields).  */
 432           unsigned int is_stub : 1;
 433
 434           /* Unused.  */
 435           unsigned int dummy : 3;
 436
 437           /* Index into that baseclass's virtual function table,
 438              minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 439
 440           unsigned int voffset : 24;
 441
 442 #         define VOFFSET_STATIC 1
 443
 444         } *fn_fields;
 445
 446     } *fn_fieldlists;
 447
 448 };
 449
 450 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 451    this shared static structure. */
 452
 453 extern const struct cplus_struct_type cplus_struct_default;
 454
 455 extern void
 456 allocate_cplus_struct_type PARAMS ((struct type *));
 457
 458 #define INIT_CPLUS_SPECIFIC(type) \
 459   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 460 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 461 #define HAVE_CPLUS_STRUCT(type) \
 462   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 463
 464 #define TYPE_NAME(thistype) (thistype)->name
 465 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 466 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 467 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 468 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 469 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
 470 #define TYPE_LENGTH(thistype) (thistype)->length
 471 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 472 #define TYPE_FLAGS(thistype) (thistype)->flags
 473 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 474 #define TYPE_CODE(thistype) (thistype)->code
 475 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 476 #define TYPE_FIELDS(thistype) (thistype)->fields
 477
 478 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 479 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 480 /* If TYPE_DUMMY_RANGE is true for a range type, it was allocated
 481    by force_to_range_type. */
 482 #define TYPE_DUMMY_RANGE(type) ((type)->vptr_fieldno)
 483
 484 /* C++ */
 485
 486 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 487 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 488 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 489 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 490 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 491 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 492 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 493 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 494 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 495 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 496 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 497 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 498 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
 499 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
 500 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 501   B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
 502
 503 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 504 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
 505 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
 506 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
 507 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
 508 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
 509 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
 510
 511 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 512   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 513 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 514   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 515 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 516   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 517 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 518   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 519 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 520   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 521 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 522   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 523 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 524   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 525 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 526   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 527 #define TYPE_FIELD_PRIVATE(thistype, n) \
 528   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 529     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 530 #define TYPE_FIELD_PROTECTED(thistype, n) \
 531   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 532     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 533 #define TYPE_FIELD_IGNORE(thistype, n) \
 534   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 535     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 536 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 537        B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 538
 539 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
 540 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
 541
 542 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 543 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 544 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 545 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 546 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 547
 548 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 549 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 550 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 551 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 552 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 553 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 554 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 555 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 556 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 557 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 558 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 559 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 560 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 561
 562 extern struct type *builtin_type_void;
 563 extern struct type *builtin_type_char;
 564 extern struct type *builtin_type_short;
 565 extern struct type *builtin_type_int;
 566 extern struct type *builtin_type_long;
 567 extern struct type *builtin_type_signed_char;
 568 extern struct type *builtin_type_unsigned_char;
 569 extern struct type *builtin_type_unsigned_short;
 570 extern struct type *builtin_type_unsigned_int;
 571 extern struct type *builtin_type_unsigned_long;
 572 extern struct type *builtin_type_float;
 573 extern struct type *builtin_type_double;
 574 extern struct type *builtin_type_long_double;
 575 extern struct type *builtin_type_complex;
 576 extern struct type *builtin_type_double_complex;
 577 extern struct type *builtin_type_string;
 578
 579 /* This type represents a type that was unrecognized in symbol
 580    read-in.  */
 581
 582 extern struct type *builtin_type_error;
 583
 584 extern struct type *builtin_type_long_long;
 585 extern struct type *builtin_type_unsigned_long_long;
 586
 587 /* Modula-2 types */
 588
 589 extern struct type *builtin_type_m2_char;
 590 extern struct type *builtin_type_m2_int;
 591 extern struct type *builtin_type_m2_card;
 592 extern struct type *builtin_type_m2_real;
 593 extern struct type *builtin_type_m2_bool;
 594
 595 /* Chill types */
 596
 597 extern struct type *builtin_type_chill_bool;
 598 extern struct type *builtin_type_chill_char;
 599 extern struct type *builtin_type_chill_long;
 600 extern struct type *builtin_type_chill_ulong;
 601 extern struct type *builtin_type_chill_real;
 602
 603 /* Maximum and minimum values of built-in types */
 604
 605 #define MAX_OF_TYPE(t)  \
 606    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 607     : MAX_OF_SIZE(TYPE_LENGTH(t))
 608
 609 #define MIN_OF_TYPE(t)  \
 610    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 611     : MIN_OF_SIZE(TYPE_LENGTH(t))
 612
 613 /* Allocate space for storing data associated with a particular type.
 614    We ensure that the space is allocated using the same mechanism that
 615    was used to allocate the space for the type structure itself.  I.E.
 616    if the type is on an objfile's type_obstack, then the space for data
 617    associated with that type will also be allocated on the type_obstack.
 618    If the type is not associated with any particular objfile (such as
 619    builtin types), then the data space will be allocated with xmalloc,
 620    the same as for the type structure. */
 621
 622 #define TYPE_ALLOC(t,size)  \
 623    (TYPE_OBJFILE (t) != NULL  \
 624     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 625     : xmalloc (size))
 626
 627 extern struct type *
 628 alloc_type PARAMS ((struct objfile *));
 629
 630 extern struct type *
 631 init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 632
 633 extern struct type *
 634 lookup_reference_type PARAMS ((struct type *));
 635
 636 extern struct type *
 637 make_reference_type PARAMS ((struct type *, struct type **));
 638
 639 extern struct type *
 640 lookup_member_type PARAMS ((struct type *, struct type *));
 641
 642 extern void
 643 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 644                               struct type **));
 645
 646 extern void
 647 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 648
 649 extern struct type *
 650 allocate_stub_method PARAMS ((struct type *));
 651
 652 extern char *
 653 type_name_no_tag PARAMS ((const struct type *));
 654
 655 extern struct type *
 656 lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 657
 658 extern struct type *
 659 make_pointer_type PARAMS ((struct type *, struct type **));
 660
 661 extern struct type *
 662 lookup_pointer_type PARAMS ((struct type *));
 663
 664 extern struct type *
 665 make_function_type PARAMS ((struct type *, struct type **));
 666
 667 extern struct type *
 668 lookup_function_type PARAMS ((struct type *));
 669
 670 extern struct type *
 671 create_range_type PARAMS ((struct type *, struct type *, int, int));
 672
 673 extern struct type *
 674 create_array_type PARAMS ((struct type *, struct type *, struct type *));
 675
 676 extern struct type *
 677 create_string_type PARAMS ((struct type *, struct type *));
 678
 679 extern struct type *
 680 create_set_type PARAMS ((struct type *, struct type *));
 681
 682 extern struct type *
 683 lookup_unsigned_typename PARAMS ((char *));
 684
 685 extern struct type *
 686 lookup_signed_typename PARAMS ((char *));
 687
 688 extern void
 689 check_stub_type PARAMS ((struct type *));
 690
 691 extern void
 692 check_stub_method PARAMS ((struct type *, int, int));
 693
 694 extern struct type *
 695 lookup_primitive_typename PARAMS ((char *));
 696
 697 extern char *
 698 gdb_mangle_name PARAMS ((struct type *, int, int));
 699
 700 extern struct type *
 701 builtin_type PARAMS ((char **));
 702
 703 extern struct type *
 704 lookup_typename PARAMS ((char *, struct block *, int));
 705
 706 extern struct type *
 707 lookup_template_type PARAMS ((char *, struct type *, struct block *));
 708
 709 extern struct type *
 710 lookup_fundamental_type PARAMS ((struct objfile *, int));
 711
 712 extern void
 713 fill_in_vptr_fieldno PARAMS ((struct type *));
 714
 715 #if MAINTENANCE_CMDS
 716 extern void recursive_dump_type PARAMS ((struct type *, int));
 717 #endif
 718
 719 /* printcmd.c */
 720
 721 extern void
 722 print_scalar_formatted PARAMS ((char *, struct type *, int, int, GDB_FILE *));
 723
 724 #if MAINTENANCE_CMDS
 725 extern void maintenance_print_type PARAMS ((char *, int));
 726 #endif
 727
 728 #endif  /* GDBTYPES_H */