gdb/gdbtypes.h

   1 /* Internal type definitions for GDB.
   2    Copyright (C) 1992, 1993, 1994 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.  Beware, there are parts
  84      of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  85   TYPE_CODE_FLT,
  86
  87   /* Void type.  The length field specifies the length (probably always
  88      one) which is used in pointer arithmetic involving pointers to
  89      this type, but actually dereferencing such a pointer is invalid;
  90      a void type has no length and no actual representation in memory
  91      or registers.  A pointer to a void type is a generic pointer.  */
  92   TYPE_CODE_VOID,
  93
  94   TYPE_CODE_SET,                /* Pascal sets */
  95   TYPE_CODE_RANGE,              /* Range (integers within spec'd bounds) */
  96
  97   /* A string type which is like an array of character but prints
  98      differently (at least for CHILL).  It does not contain a length
  99      field as Pascal strings (for many Pascals, anyway) do; if we want
 100      to deal with such strings, we should use a new type code.  */
 101   TYPE_CODE_STRING,
 102
 103   /* String of bits; like TYPE_CODE_SET but prints differently (at least
 104      for CHILL).  */
 105   TYPE_CODE_BITSTRING,
 106
 107   /* Unknown type.  The length field is valid if we were able to
 108      deduce that much about the type, or 0 if we don't even know that.  */
 109   TYPE_CODE_ERROR,
 110
 111   /* C++ */
 112   TYPE_CODE_MEMBER,             /* Member type */
 113   TYPE_CODE_METHOD,             /* Method type */
 114   TYPE_CODE_REF,                /* C++ Reference types */
 115
 116   TYPE_CODE_CHAR,               /* *real* character type */
 117
 118   /* Boolean type.  0 is false, 1 is true, and other values are non-boolean
 119      (e.g. FORTRAN "logical" used as unsigned int).  */
 120   TYPE_CODE_BOOL,
 121
 122   /* Fortran */
 123   TYPE_CODE_COMPLEX,            /* Complex float */
 124 };
 125
 126 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 127    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 128    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 129    so that we can print "class" or "struct" depending on what the debug
 130    info said.  It's not clear we should bother.  */
 131
 132 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 133
 134 /* Some bits for the type's flags word. */
 135
 136 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 137    type is signed.  */
 138
 139 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 140
 141 /* This appears in a type's flags word if it is a stub type (e.g., if
 142    someone referenced a type that wasn't defined in a source file
 143    via (struct sir_not_appearing_in_this_film *)).  */
 144
 145 #define TYPE_FLAG_STUB          (1 << 2)
 146
 147 /* The target type of this type is a stub type, and this type needs to
 148    be updated if it gets un-stubbed in check_stub_type.  Currently only
 149    used for arrays, in which TYPE_LENGTH of the array gets set based
 150    on the TYPE_LENGTH of the target type.  */
 151
 152 #define TYPE_FLAG_TARGET_STUB (1 << 3)
 153
 154 struct type
 155 {
 156
 157   /* Code for kind of type */
 158
 159   enum type_code code;
 160
 161   /* Name of this type, or NULL if none.
 162
 163      This is used for printing only, except by poorly designed C++ code.
 164      For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 165
 166   char *name;
 167
 168   /* Tag name for this type, or NULL if none.  This means that the
 169      name of the type consists of a keyword followed by the tag name.
 170      Which keyword is determined by the type code ("struct" for
 171      TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 172      with this feature.
 173
 174      This is used for printing only, except by poorly designed C++ code.
 175      For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 176      One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 177      the name to use to look for definitions in other files.  */
 178
 179   char *tag_name;
 180
 181   /* Length, in units of TARGET_CHAR_BIT bits,
 182      of storage for a value of this type */
 183
 184   unsigned length;
 185
 186   /* FIXME, these should probably be restricted to a Fortran-specific
 187      field in some fashion.  */
 188 #define BOUND_CANNOT_BE_DETERMINED   5
 189 #define BOUND_BY_REF_ON_STACK        4
 190 #define BOUND_BY_VALUE_ON_STACK      3
 191 #define BOUND_BY_REF_IN_REG          2
 192 #define BOUND_BY_VALUE_IN_REG        1
 193 #define BOUND_SIMPLE                 0
 194   int upper_bound_type;
 195   int lower_bound_type;
 196
 197   /* Every type is now associated with a particular objfile, and the
 198      type is allocated on the type_obstack for that objfile.  One problem
 199      however, is that there are times when gdb allocates new types while
 200      it is not in the process of reading symbols from a particular objfile.
 201      Fortunately, these happen when the type being created is a derived
 202      type of an existing type, such as in lookup_pointer_type().  So
 203      we can just allocate the new type using the same objfile as the
 204      existing type, but to do this we need a backpointer to the objfile
 205      from the existing type.  Yes this is somewhat ugly, but without
 206      major overhaul of the internal type system, it can't be avoided
 207      for now. */
 208
 209   struct objfile *objfile;
 210
 211   /* For a pointer type, describes the type of object pointed to.
 212      For an array type, describes the type of the elements.
 213      For a function or method type, describes the type of the return value.
 214      For a range type, describes the type of the full range.
 215      For a complex type, describes the type of each coordinate.
 216      Unused otherwise.  */
 217
 218   struct type *target_type;
 219
 220   /* Type that is a pointer to this type.
 221      NULL if no such pointer-to type is known yet.
 222      The debugger may add the address of such a type
 223      if it has to construct one later.  */
 224
 225   struct type *pointer_type;
 226
 227   /* C++: also need a reference type.  */
 228
 229   struct type *reference_type;
 230
 231   /* Type that is a function returning this type.
 232      NULL if no such function type is known here.
 233      The debugger may add the address of such a type
 234      if it has to construct one later.  */
 235
 236   struct type *function_type;
 237
 238   /* Flags about this type.  */
 239
 240   short flags;
 241
 242   /* Number of fields described for this type */
 243
 244   short nfields;
 245
 246   /* For structure and union types, a description of each field.
 247      For set and pascal array types, there is one "field",
 248      whose type is the domain type of the set or array.
 249      For range types, there are two "fields",
 250      the minimum and maximum values (both inclusive).
 251      For enum types, each possible value is described by one "field".
 252      For C++ classes, there is one field for each base class (if it is
 253      a derived class) plus one field for each class data member.  Member
 254      functions are recorded elsewhere.
 255
 256      Using a pointer to a separate array of fields
 257      allows all types to have the same size, which is useful
 258      because we can allocate the space for a type before
 259      we know what to put in it.  */
 260
 261   struct field
 262     {
 263
 264       /* Position of this field, counting in bits from start of
 265          containing structure.  For a function type, this is the
 266          position in the argument list of this argument.
 267          For a range bound or enum value, this is the value itself.
 268          (FIXME:  What about ranges larger than host int size?)
 269          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 270          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
 271
 272       int bitpos;
 273
 274       /* Size of this field, in bits, or zero if not packed.
 275          For an unpacked field, the field's type's length
 276          says how many bytes the field occupies.  */
 277       /* FIXME: This is abused by TYPE_FIELD_STATIC_PHYSNAME to contain
 278          a pointer, so it has to be long.  */
 279
 280       long bitsize;
 281
 282       /* In a struct or enum type, type of this field.
 283          In a function type, type of this argument.
 284          In an array type, the domain-type of the array.  */
 285
 286       struct type *type;
 287
 288       /* Name of field, value or argument.
 289          NULL for range bounds and array domains.  */
 290
 291       char *name;
 292
 293     } *fields;
 294
 295   /* For types with virtual functions, VPTR_BASETYPE is the base class which
 296      defined the virtual function table pointer.
 297
 298      For types that are pointer to member types, VPTR_BASETYPE
 299      is the type that this pointer is a member of.
 300
 301      Unused otherwise.  */
 302
 303   struct type *vptr_basetype;
 304
 305   /* Field number of the virtual function table pointer in
 306      VPTR_BASETYPE.  If -1, we were unable to find the virtual
 307      function table pointer in initial symbol reading, and
 308      fill_in_vptr_fieldno should be called to find it if possible.
 309
 310      Unused if this type does not have virtual functions.  */
 311
 312   int vptr_fieldno;
 313
 314   /* Slot to point to additional language-specific fields of this type.  */
 315
 316   union type_specific
 317     {
 318
 319       /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC.  */
 320
 321       struct type **arg_types;
 322
 323       /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 324          cplus_struct_default, a default static instance of a struct
 325          cplus_struct_type. */
 326
 327       struct cplus_struct_type *cplus_stuff;
 328
 329     } type_specific;
 330 };
 331
 332 #define NULL_TYPE ((struct type *) 0)
 333
 334 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 335    nodes.  */
 336
 337 struct cplus_struct_type
 338 {
 339   /* Number of base classes this type derives from.  The baseclasses are
 340      stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 341      the struct type).  I think only the `type' field of such a field has
 342      any meaning.  */
 343
 344   short n_baseclasses;
 345
 346   /* Number of methods with unique names.  All overloaded methods with
 347      the same name count only once. */
 348
 349   short nfn_fields;
 350
 351   /* Number of methods described for this type, not including the
 352      methods that it derives from.  */
 353
 354   int nfn_fields_total;
 355
 356   /* For derived classes, the number of base classes is given by n_baseclasses
 357      and virtual_field_bits is a bit vector containing one bit per base class.
 358      If the base class is virtual, the corresponding bit will be set.
 359      I.E, given:
 360
 361         class A{};
 362         class B{};
 363         class C : public B, public virtual A {};
 364
 365      B is a baseclass of C; A is a virtual baseclass for C.
 366      This is a C++ 2.0 language feature. */
 367
 368   B_TYPE *virtual_field_bits;
 369
 370   /* For classes with private fields, the number of fields is given by
 371      nfields and private_field_bits is a bit vector containing one bit
 372      per field.
 373      If the field is private, the corresponding bit will be set. */
 374
 375   B_TYPE *private_field_bits;
 376
 377   /* For classes with protected fields, the number of fields is given by
 378      nfields and protected_field_bits is a bit vector containing one bit
 379      per field.
 380      If the field is private, the corresponding bit will be set. */
 381
 382   B_TYPE *protected_field_bits;
 383
 384   /* for classes with fields to be ignored, either this is optimized out
 385      or this field has length 0 */
 386
 387   B_TYPE *ignore_field_bits;
 388
 389   /* For classes, structures, and unions, a description of each field,
 390      which consists of an overloaded name, followed by the types of
 391      arguments that the method expects, and then the name after it
 392      has been renamed to make it distinct.
 393
 394      fn_fieldlists points to an array of nfn_fields of these. */
 395
 396   struct fn_fieldlist
 397     {
 398
 399       /* The overloaded name.  */
 400
 401       char *name;
 402
 403       /* The number of methods with this name.  */
 404
 405       int length;
 406
 407       /* The list of methods.  */
 408
 409       struct fn_field
 410         {
 411
 412           /* If is_stub is clear, this is the mangled name which we can
 413              look up to find the address of the method (FIXME: it would
 414              be cleaner to have a pointer to the struct symbol here
 415              instead).  */
 416
 417           /* If is_stub is set, this is the portion of the mangled
 418              name which specifies the arguments.  For example, "ii",
 419              if there are two int arguments, or "" if there are no
 420              arguments.  See gdb_mangle_name for the conversion from this
 421              format to the one used if is_stub is clear.  */
 422
 423           char *physname;
 424
 425           /* The return value of the method */
 426
 427           struct type *type;
 428
 429           /* The argument list.  Only valid if is_stub is clear.  Contains
 430              the type of each argument, including `this', and ending with
 431              a NULL pointer after the last argument.  Should not contain
 432              a `this' pointer for static member functions.  */
 433
 434           struct type **args;
 435
 436           /* For virtual functions.
 437              First baseclass that defines this virtual function.   */
 438
 439           struct type *fcontext;
 440
 441           /* Attributes. */
 442
 443           unsigned int is_const : 1;
 444           unsigned int is_volatile : 1;
 445           unsigned int is_private : 1;
 446           unsigned int is_protected : 1;
 447
 448           /* A stub method only has some fields valid (but they are enough
 449              to reconstruct the rest of the fields).  */
 450           unsigned int is_stub : 1;
 451
 452           /* Unused.  */
 453           unsigned int dummy : 3;
 454
 455           /* Index into that baseclass's virtual function table,
 456              minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 457
 458           unsigned int voffset : 24;
 459
 460 #         define VOFFSET_STATIC 1
 461
 462         } *fn_fields;
 463
 464     } *fn_fieldlists;
 465
 466 };
 467
 468 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 469    this shared static structure. */
 470
 471 extern const struct cplus_struct_type cplus_struct_default;
 472
 473 extern void
 474 allocate_cplus_struct_type PARAMS ((struct type *));
 475
 476 #define INIT_CPLUS_SPECIFIC(type) \
 477   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 478 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 479 #define HAVE_CPLUS_STRUCT(type) \
 480   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 481
 482 #define TYPE_NAME(thistype) (thistype)->name
 483 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 484 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 485 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 486 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 487 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
 488 #define TYPE_LENGTH(thistype) (thistype)->length
 489 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 490 #define TYPE_FLAGS(thistype) (thistype)->flags
 491 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 492 #define TYPE_CODE(thistype) (thistype)->code
 493 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 494 #define TYPE_FIELDS(thistype) (thistype)->fields
 495
 496 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
 497 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 498 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 499 /* If TYPE_DUMMY_RANGE is true for a range type, it was allocated
 500    by force_to_range_type. */
 501 #define TYPE_DUMMY_RANGE(type) ((type)->vptr_fieldno)
 502
 503 /* Moto-specific stuff for FORTRAN arrays */
 504
 505 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
 506 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
 507
 508 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
 509    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
 510
 511 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
 512    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
 513
 514 /* C++ */
 515
 516 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 517 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 518 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 519 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 520 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 521 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 522 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 523 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 524 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 525 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 526 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 527 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 528 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
 529 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
 530 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 531   B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
 532
 533 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 534 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
 535 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
 536 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
 537 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
 538 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
 539 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
 540
 541 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 542   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 543 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 544   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 545 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 546   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 547 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 548   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 549 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 550   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 551 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 552   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 553 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 554   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 555 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 556   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 557 #define TYPE_FIELD_PRIVATE(thistype, n) \
 558   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 559     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 560 #define TYPE_FIELD_PROTECTED(thistype, n) \
 561   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 562     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 563 #define TYPE_FIELD_IGNORE(thistype, n) \
 564   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 565     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 566 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 567        B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 568
 569 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
 570 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
 571
 572 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 573 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 574 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 575 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 576 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 577
 578 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 579 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 580 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 581 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 582 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 583 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 584 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 585 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 586 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 587 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 588 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 589 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 590 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 591
 592 extern struct type *builtin_type_void;
 593 extern struct type *builtin_type_char;
 594 extern struct type *builtin_type_short;
 595 extern struct type *builtin_type_int;
 596 extern struct type *builtin_type_long;
 597 extern struct type *builtin_type_signed_char;
 598 extern struct type *builtin_type_unsigned_char;
 599 extern struct type *builtin_type_unsigned_short;
 600 extern struct type *builtin_type_unsigned_int;
 601 extern struct type *builtin_type_unsigned_long;
 602 extern struct type *builtin_type_float;
 603 extern struct type *builtin_type_double;
 604 extern struct type *builtin_type_long_double;
 605 extern struct type *builtin_type_complex;
 606 extern struct type *builtin_type_double_complex;
 607 extern struct type *builtin_type_string;
 608
 609 /* This type represents a type that was unrecognized in symbol
 610    read-in.  */
 611
 612 extern struct type *builtin_type_error;
 613
 614 extern struct type *builtin_type_long_long;
 615 extern struct type *builtin_type_unsigned_long_long;
 616
 617 /* Modula-2 types */
 618
 619 extern struct type *builtin_type_m2_char;
 620 extern struct type *builtin_type_m2_int;
 621 extern struct type *builtin_type_m2_card;
 622 extern struct type *builtin_type_m2_real;
 623 extern struct type *builtin_type_m2_bool;
 624
 625 /* Chill types */
 626
 627 extern struct type *builtin_type_chill_bool;
 628 extern struct type *builtin_type_chill_char;
 629 extern struct type *builtin_type_chill_long;
 630 extern struct type *builtin_type_chill_ulong;
 631 extern struct type *builtin_type_chill_real;
 632
 633 /* Fortran (F77) types */
 634
 635 extern struct type *builtin_type_f_character;
 636 extern struct type *builtin_type_f_integer;
 637 extern struct type *builtin_type_f_logical;
 638 extern struct type *builtin_type_f_logical_s1;
 639 extern struct type *builtin_type_f_logical_s2;
 640 extern struct type *builtin_type_f_integer;
 641 extern struct type *builtin_type_f_integer_s2;
 642 extern struct type *builtin_type_f_real;
 643 extern struct type *builtin_type_f_real_s8;
 644 extern struct type *builtin_type_f_real_s16;
 645 extern struct type *builtin_type_f_complex_s8;
 646 extern struct type *builtin_type_f_complex_s16;
 647 extern struct type *builtin_type_f_complex_s32;
 648 extern struct type *builtin_type_f_void;
 649
 650 /* Maximum and minimum values of built-in types */
 651
 652 #define MAX_OF_TYPE(t)  \
 653    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 654     : MAX_OF_SIZE(TYPE_LENGTH(t))
 655
 656 #define MIN_OF_TYPE(t)  \
 657    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 658     : MIN_OF_SIZE(TYPE_LENGTH(t))
 659
 660 /* Allocate space for storing data associated with a particular type.
 661    We ensure that the space is allocated using the same mechanism that
 662    was used to allocate the space for the type structure itself.  I.E.
 663    if the type is on an objfile's type_obstack, then the space for data
 664    associated with that type will also be allocated on the type_obstack.
 665    If the type is not associated with any particular objfile (such as
 666    builtin types), then the data space will be allocated with xmalloc,
 667    the same as for the type structure. */
 668
 669 #define TYPE_ALLOC(t,size)  \
 670    (TYPE_OBJFILE (t) != NULL  \
 671     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 672     : xmalloc (size))
 673
 674 extern struct type *
 675 alloc_type PARAMS ((struct objfile *));
 676
 677 extern struct type *
 678 init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 679
 680 extern struct type *
 681 lookup_reference_type PARAMS ((struct type *));
 682
 683 extern struct type *
 684 make_reference_type PARAMS ((struct type *, struct type **));
 685
 686 extern struct type *
 687 lookup_member_type PARAMS ((struct type *, struct type *));
 688
 689 extern void
 690 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 691                               struct type **));
 692
 693 extern void
 694 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 695
 696 extern struct type *
 697 allocate_stub_method PARAMS ((struct type *));
 698
 699 extern char *
 700 type_name_no_tag PARAMS ((const struct type *));
 701
 702 extern struct type *
 703 lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 704
 705 extern struct type *
 706 make_pointer_type PARAMS ((struct type *, struct type **));
 707
 708 extern struct type *
 709 lookup_pointer_type PARAMS ((struct type *));
 710
 711 extern struct type *
 712 make_function_type PARAMS ((struct type *, struct type **));
 713
 714 extern struct type *
 715 lookup_function_type PARAMS ((struct type *));
 716
 717 extern struct type *
 718 create_range_type PARAMS ((struct type *, struct type *, int, int));
 719
 720 extern struct type *
 721 create_array_type PARAMS ((struct type *, struct type *, struct type *));
 722
 723 extern struct type *
 724 create_string_type PARAMS ((struct type *, struct type *));
 725
 726 extern struct type *create_set_type PARAMS ((struct type *, struct type *));
 727
 728 extern int chill_varying_type PARAMS ((struct type*));
 729
 730 extern struct type *
 731 lookup_unsigned_typename PARAMS ((char *));
 732
 733 extern struct type *
 734 lookup_signed_typename PARAMS ((char *));
 735
 736 extern void
 737 check_stub_type PARAMS ((struct type *));
 738
 739 extern void
 740 check_stub_method PARAMS ((struct type *, int, int));
 741
 742 extern struct type *
 743 lookup_primitive_typename PARAMS ((char *));
 744
 745 extern char *
 746 gdb_mangle_name PARAMS ((struct type *, int, int));
 747
 748 extern struct type *
 749 builtin_type PARAMS ((char **));
 750
 751 extern struct type *
 752 lookup_typename PARAMS ((char *, struct block *, int));
 753
 754 extern struct type *
 755 lookup_template_type PARAMS ((char *, struct type *, struct block *));
 756
 757 extern struct type *
 758 lookup_fundamental_type PARAMS ((struct objfile *, int));
 759
 760 extern void
 761 fill_in_vptr_fieldno PARAMS ((struct type *));
 762
 763 #if MAINTENANCE_CMDS
 764 extern void recursive_dump_type PARAMS ((struct type *, int));
 765 #endif
 766
 767 /* printcmd.c */
 768
 769 extern void
 770 print_scalar_formatted PARAMS ((char *, struct type *, int, int, GDB_FILE *));
 771
 772 extern int can_dereference PARAMS ((struct type *));
 773
 774 #if MAINTENANCE_CMDS
 775 extern void maintenance_print_type PARAMS ((char *, int));
 776 #endif
 777
 778 #endif  /* GDBTYPES_H */