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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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   TYPE_CODE_TYPEDEF
 126 };
 127
 128 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 129    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 130    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 131    so that we can print "class" or "struct" depending on what the debug
 132    info said.  It's not clear we should bother.  */
 133
 134 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 135
 136 /* Some bits for the type's flags word. */
 137
 138 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 139    type is signed.  */
 140
 141 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 142
 143 /* This appears in a type's flags word if it is a stub type (e.g., if
 144    someone referenced a type that wasn't defined in a source file
 145    via (struct sir_not_appearing_in_this_film *)).  */
 146
 147 #define TYPE_FLAG_STUB          (1 << 2)
 148
 149 /* The target type of this type is a stub type, and this type needs to
 150    be updated if it gets un-stubbed in check_typedef.
 151    Used for arrays and ranges, in which TYPE_LENGTH of the array/range
 152    gets set based on the TYPE_LENGTH of the target type.
 153    Also, set for TYPE_CODE_TYPEDEF. */
 154
 155 #define TYPE_FLAG_TARGET_STUB (1 << 3)
 156
 157 struct type
 158 {
 159
 160   /* Code for kind of type */
 161
 162   enum type_code code;
 163
 164   /* Name of this type, or NULL if none.
 165
 166      This is used for printing only, except by poorly designed C++ code.
 167      For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 168
 169   char *name;
 170
 171   /* Tag name for this type, or NULL if none.  This means that the
 172      name of the type consists of a keyword followed by the tag name.
 173      Which keyword is determined by the type code ("struct" for
 174      TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 175      with this feature.
 176
 177      This is used for printing only, except by poorly designed C++ code.
 178      For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 179      One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 180      the name to use to look for definitions in other files.  */
 181
 182   char *tag_name;
 183
 184   /* Length of storage for a value of this type.  Various places pass
 185      this to memcpy and such, meaning it must be in units of
 186      HOST_CHAR_BIT.  Various other places expect they can calculate
 187      addresses by adding it and such, meaning it must be in units of
 188      TARGET_CHAR_BIT.  For some DSP targets, in which HOST_CHAR_BIT
 189      will (presumably) be 8 and TARGET_CHAR_BIT will be (say) 32, this
 190      is a problem.  One fix would be to make this field in bits
 191      (requiring that it always be a multiple of HOST_CHAR_BIT and
 192      TARGET_CHAR_BIT)--the other choice would be to make it
 193      consistently in units of HOST_CHAR_BIT.  */
 194
 195   unsigned length;
 196
 197   /* FIXME, these should probably be restricted to a Fortran-specific
 198      field in some fashion.  */
 199 #define BOUND_CANNOT_BE_DETERMINED   5
 200 #define BOUND_BY_REF_ON_STACK        4
 201 #define BOUND_BY_VALUE_ON_STACK      3
 202 #define BOUND_BY_REF_IN_REG          2
 203 #define BOUND_BY_VALUE_IN_REG        1
 204 #define BOUND_SIMPLE                 0
 205   int upper_bound_type;
 206   int lower_bound_type;
 207
 208   /* Every type is now associated with a particular objfile, and the
 209      type is allocated on the type_obstack for that objfile.  One problem
 210      however, is that there are times when gdb allocates new types while
 211      it is not in the process of reading symbols from a particular objfile.
 212      Fortunately, these happen when the type being created is a derived
 213      type of an existing type, such as in lookup_pointer_type().  So
 214      we can just allocate the new type using the same objfile as the
 215      existing type, but to do this we need a backpointer to the objfile
 216      from the existing type.  Yes this is somewhat ugly, but without
 217      major overhaul of the internal type system, it can't be avoided
 218      for now. */
 219
 220   struct objfile *objfile;
 221
 222   /* For a pointer type, describes the type of object pointed to.
 223      For an array type, describes the type of the elements.
 224      For a function or method type, describes the type of the return value.
 225      For a range type, describes the type of the full range.
 226      For a complex type, describes the type of each coordinate.
 227      Unused otherwise.  */
 228
 229   struct type *target_type;
 230
 231   /* Type that is a pointer to this type.
 232      NULL if no such pointer-to type is known yet.
 233      The debugger may add the address of such a type
 234      if it has to construct one later.  */
 235
 236   struct type *pointer_type;
 237
 238   /* C++: also need a reference type.  */
 239
 240   struct type *reference_type;
 241
 242   /* Flags about this type.  */
 243
 244   short flags;
 245
 246   /* Number of fields described for this type */
 247
 248   short nfields;
 249
 250   /* For structure and union types, a description of each field.
 251      For set and pascal array types, there is one "field",
 252      whose type is the domain type of the set or array.
 253      For range types, there are two "fields",
 254      the minimum and maximum values (both inclusive).
 255      For enum types, each possible value is described by one "field".
 256      For a function type, a "field" for each parameter type.
 257      For C++ classes, there is one field for each base class (if it is
 258      a derived class) plus one field for each class data member.  Member
 259      functions are recorded elsewhere.
 260
 261      Using a pointer to a separate array of fields
 262      allows all types to have the same size, which is useful
 263      because we can allocate the space for a type before
 264      we know what to put in it.  */
 265
 266   struct field
 267     {
 268
 269       /* Position of this field, counting in bits from start of
 270          containing structure.  For a function type, this is the
 271          position in the argument list of this argument.
 272          For a range bound or enum value, this is the value itself.
 273          (FIXME:  What about ranges larger than host int size?)
 274          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 275          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB. */
 276
 277       int bitpos;
 278
 279       /* Size of this field, in bits, or zero if not packed.
 280          For an unpacked field, the field's type's length
 281          says how many bytes the field occupies.  */
 282       /* FIXME: This is abused by TYPE_FIELD_STATIC_PHYSNAME to contain
 283          a pointer, so it has to be long.  */
 284
 285       long bitsize;
 286
 287       /* In a struct or enum type, type of this field.
 288          In a function type, type of this argument.
 289          In an array type, the domain-type of the array.  */
 290
 291       struct type *type;
 292
 293       /* Name of field, value or argument.
 294          NULL for range bounds and array domains.  */
 295
 296       char *name;
 297
 298     } *fields;
 299
 300   /* For types with virtual functions, VPTR_BASETYPE is the base class which
 301      defined the virtual function table pointer.
 302
 303      For types that are pointer to member types, VPTR_BASETYPE
 304      is the type that this pointer is a member of.
 305
 306      Unused otherwise.  */
 307
 308   struct type *vptr_basetype;
 309
 310   /* Field number of the virtual function table pointer in
 311      VPTR_BASETYPE.  If -1, we were unable to find the virtual
 312      function table pointer in initial symbol reading, and
 313      fill_in_vptr_fieldno should be called to find it if possible.
 314
 315      Unused if this type does not have virtual functions.  */
 316
 317   int vptr_fieldno;
 318
 319   /* Slot to point to additional language-specific fields of this type.  */
 320
 321   union type_specific
 322     {
 323
 324       /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNC.  */
 325
 326       struct type **arg_types;
 327
 328       /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 329          cplus_struct_default, a default static instance of a struct
 330          cplus_struct_type. */
 331
 332       struct cplus_struct_type *cplus_stuff;
 333
 334     } type_specific;
 335 };
 336
 337 #define NULL_TYPE ((struct type *) 0)
 338
 339 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 340    nodes.  */
 341
 342 struct cplus_struct_type
 343 {
 344   /* Number of base classes this type derives from.  The baseclasses are
 345      stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 346      the struct type).  I think only the `type' field of such a field has
 347      any meaning.  */
 348
 349   short n_baseclasses;
 350
 351   /* Number of methods with unique names.  All overloaded methods with
 352      the same name count only once. */
 353
 354   short nfn_fields;
 355
 356   /* Number of methods described for this type, not including the
 357      methods that it derives from.  */
 358
 359   int nfn_fields_total;
 360
 361   /* For derived classes, the number of base classes is given by n_baseclasses
 362      and virtual_field_bits is a bit vector containing one bit per base class.
 363      If the base class is virtual, the corresponding bit will be set.
 364      I.E, given:
 365
 366         class A{};
 367         class B{};
 368         class C : public B, public virtual A {};
 369
 370      B is a baseclass of C; A is a virtual baseclass for C.
 371      This is a C++ 2.0 language feature. */
 372
 373   B_TYPE *virtual_field_bits;
 374
 375   /* For classes with private fields, the number of fields is given by
 376      nfields and private_field_bits is a bit vector containing one bit
 377      per field.
 378      If the field is private, the corresponding bit will be set. */
 379
 380   B_TYPE *private_field_bits;
 381
 382   /* For classes with protected fields, the number of fields is given by
 383      nfields and protected_field_bits is a bit vector containing one bit
 384      per field.
 385      If the field is private, the corresponding bit will be set. */
 386
 387   B_TYPE *protected_field_bits;
 388
 389   /* for classes with fields to be ignored, either this is optimized out
 390      or this field has length 0 */
 391
 392   B_TYPE *ignore_field_bits;
 393
 394   /* For classes, structures, and unions, a description of each field,
 395      which consists of an overloaded name, followed by the types of
 396      arguments that the method expects, and then the name after it
 397      has been renamed to make it distinct.
 398
 399      fn_fieldlists points to an array of nfn_fields of these. */
 400
 401   struct fn_fieldlist
 402     {
 403
 404       /* The overloaded name.  */
 405
 406       char *name;
 407
 408       /* The number of methods with this name.  */
 409
 410       int length;
 411
 412       /* The list of methods.  */
 413
 414       struct fn_field
 415         {
 416
 417           /* If is_stub is clear, this is the mangled name which we can
 418              look up to find the address of the method (FIXME: it would
 419              be cleaner to have a pointer to the struct symbol here
 420              instead).  */
 421
 422           /* If is_stub is set, this is the portion of the mangled
 423              name which specifies the arguments.  For example, "ii",
 424              if there are two int arguments, or "" if there are no
 425              arguments.  See gdb_mangle_name for the conversion from this
 426              format to the one used if is_stub is clear.  */
 427
 428           char *physname;
 429
 430           /* The return value of the method */
 431
 432           struct type *type;
 433
 434           /* The argument list.  Only valid if is_stub is clear.  Contains
 435              the type of each argument, including `this', and ending with
 436              a NULL pointer after the last argument.  Should not contain
 437              a `this' pointer for static member functions.  */
 438
 439           struct type **args;
 440
 441           /* For virtual functions.
 442              First baseclass that defines this virtual function.   */
 443
 444           struct type *fcontext;
 445
 446           /* Attributes. */
 447
 448           unsigned int is_const : 1;
 449           unsigned int is_volatile : 1;
 450           unsigned int is_private : 1;
 451           unsigned int is_protected : 1;
 452
 453           /* A stub method only has some fields valid (but they are enough
 454              to reconstruct the rest of the fields).  */
 455           unsigned int is_stub : 1;
 456
 457           /* Unused.  */
 458           unsigned int dummy : 3;
 459
 460           /* Index into that baseclass's virtual function table,
 461              minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 462
 463           unsigned int voffset : 24;
 464
 465 #         define VOFFSET_STATIC 1
 466
 467         } *fn_fields;
 468
 469     } *fn_fieldlists;
 470
 471 };
 472
 473 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 474    this shared static structure. */
 475
 476 extern const struct cplus_struct_type cplus_struct_default;
 477
 478 extern void
 479 allocate_cplus_struct_type PARAMS ((struct type *));
 480
 481 #define INIT_CPLUS_SPECIFIC(type) \
 482   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 483 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 484 #define HAVE_CPLUS_STRUCT(type) \
 485   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 486
 487 #define TYPE_NAME(thistype) (thistype)->name
 488 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 489 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 490 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 491 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 492 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
 493    But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
 494    so you only have to call check_typedef once.  Since allocate_value
 495    calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe.  */
 496 #define TYPE_LENGTH(thistype) (thistype)->length
 497 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 498 #define TYPE_FLAGS(thistype) (thistype)->flags
 499 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 500 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
 501    type, you need to do TYPE_CODE (check_type (this_type)). */
 502 #define TYPE_CODE(thistype) (thistype)->code
 503 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 504 #define TYPE_FIELDS(thistype) (thistype)->fields
 505
 506 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
 507 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 508 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 509
 510 /* Moto-specific stuff for FORTRAN arrays */
 511
 512 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
 513 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
 514
 515 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
 516    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
 517
 518 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
 519    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
 520
 521 /* C++ */
 522
 523 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 524 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 525 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 526 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 527 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 528 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 529 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 530 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 531 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 532 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 533 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 534 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 535 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
 536 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
 537 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 538   B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
 539
 540 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 541 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
 542 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
 543 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
 544 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
 545 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
 546 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
 547
 548 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 549   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 550 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 551   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 552 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 553   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 554 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 555   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 556 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 557   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 558 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 559   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 560 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 561   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 562 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 563   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 564 #define TYPE_FIELD_PRIVATE(thistype, n) \
 565   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 566     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 567 #define TYPE_FIELD_PROTECTED(thistype, n) \
 568   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 569     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 570 #define TYPE_FIELD_IGNORE(thistype, n) \
 571   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 572     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 573 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 574        B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 575
 576 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
 577 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
 578
 579 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 580 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 581 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 582 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 583 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 584
 585 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 586 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 587 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 588 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 589 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 590 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 591 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 592 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 593 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 594 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 595 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 596 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 597 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 598
 599 extern struct type *builtin_type_void;
 600 extern struct type *builtin_type_char;
 601 extern struct type *builtin_type_short;
 602 extern struct type *builtin_type_int;
 603 extern struct type *builtin_type_long;
 604 extern struct type *builtin_type_signed_char;
 605 extern struct type *builtin_type_unsigned_char;
 606 extern struct type *builtin_type_unsigned_short;
 607 extern struct type *builtin_type_unsigned_int;
 608 extern struct type *builtin_type_unsigned_long;
 609 extern struct type *builtin_type_float;
 610 extern struct type *builtin_type_double;
 611 extern struct type *builtin_type_long_double;
 612 extern struct type *builtin_type_complex;
 613 extern struct type *builtin_type_double_complex;
 614 extern struct type *builtin_type_string;
 615
 616 /* This type represents a type that was unrecognized in symbol
 617    read-in.  */
 618
 619 extern struct type *builtin_type_error;
 620
 621 extern struct type *builtin_type_long_long;
 622 extern struct type *builtin_type_unsigned_long_long;
 623
 624 /* Modula-2 types */
 625
 626 extern struct type *builtin_type_m2_char;
 627 extern struct type *builtin_type_m2_int;
 628 extern struct type *builtin_type_m2_card;
 629 extern struct type *builtin_type_m2_real;
 630 extern struct type *builtin_type_m2_bool;
 631
 632 /* Chill types */
 633
 634 extern struct type *builtin_type_chill_bool;
 635 extern struct type *builtin_type_chill_char;
 636 extern struct type *builtin_type_chill_long;
 637 extern struct type *builtin_type_chill_ulong;
 638 extern struct type *builtin_type_chill_real;
 639
 640 /* Fortran (F77) types */
 641
 642 extern struct type *builtin_type_f_character;
 643 extern struct type *builtin_type_f_integer;
 644 extern struct type *builtin_type_f_logical;
 645 extern struct type *builtin_type_f_logical_s1;
 646 extern struct type *builtin_type_f_logical_s2;
 647 extern struct type *builtin_type_f_integer;
 648 extern struct type *builtin_type_f_integer_s2;
 649 extern struct type *builtin_type_f_real;
 650 extern struct type *builtin_type_f_real_s8;
 651 extern struct type *builtin_type_f_real_s16;
 652 extern struct type *builtin_type_f_complex_s8;
 653 extern struct type *builtin_type_f_complex_s16;
 654 extern struct type *builtin_type_f_complex_s32;
 655 extern struct type *builtin_type_f_void;
 656
 657 /* Maximum and minimum values of built-in types */
 658
 659 #define MAX_OF_TYPE(t)  \
 660    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 661     : MAX_OF_SIZE(TYPE_LENGTH(t))
 662
 663 #define MIN_OF_TYPE(t)  \
 664    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 665     : MIN_OF_SIZE(TYPE_LENGTH(t))
 666
 667 /* Allocate space for storing data associated with a particular type.
 668    We ensure that the space is allocated using the same mechanism that
 669    was used to allocate the space for the type structure itself.  I.E.
 670    if the type is on an objfile's type_obstack, then the space for data
 671    associated with that type will also be allocated on the type_obstack.
 672    If the type is not associated with any particular objfile (such as
 673    builtin types), then the data space will be allocated with xmalloc,
 674    the same as for the type structure. */
 675
 676 #define TYPE_ALLOC(t,size)  \
 677    (TYPE_OBJFILE (t) != NULL  \
 678     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 679     : xmalloc (size))
 680
 681 extern struct type *
 682 alloc_type PARAMS ((struct objfile *));
 683
 684 extern struct type *
 685 init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 686
 687 extern struct type *
 688 lookup_reference_type PARAMS ((struct type *));
 689
 690 extern struct type *
 691 make_reference_type PARAMS ((struct type *, struct type **));
 692
 693 extern struct type *
 694 lookup_member_type PARAMS ((struct type *, struct type *));
 695
 696 extern void
 697 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 698                               struct type **));
 699
 700 extern void
 701 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 702
 703 extern struct type *
 704 allocate_stub_method PARAMS ((struct type *));
 705
 706 extern char *
 707 type_name_no_tag PARAMS ((const struct type *));
 708
 709 extern struct type *
 710 lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 711
 712 extern struct type *
 713 make_pointer_type PARAMS ((struct type *, struct type **));
 714
 715 extern struct type *
 716 lookup_pointer_type PARAMS ((struct type *));
 717
 718 extern struct type *
 719 make_function_type PARAMS ((struct type *, struct type **));
 720
 721 extern struct type *
 722 lookup_function_type PARAMS ((struct type *));
 723
 724 extern struct type *
 725 create_range_type PARAMS ((struct type *, struct type *, int, int));
 726
 727 extern struct type *
 728 create_array_type PARAMS ((struct type *, struct type *, struct type *));
 729
 730 extern struct type *
 731 create_string_type PARAMS ((struct type *, struct type *));
 732
 733 extern struct type *create_set_type PARAMS ((struct type *, struct type *));
 734
 735 extern int chill_varying_type PARAMS ((struct type*));
 736
 737 extern struct type *
 738 lookup_unsigned_typename PARAMS ((char *));
 739
 740 extern struct type *
 741 lookup_signed_typename PARAMS ((char *));
 742
 743 extern struct type *
 744 check_typedef PARAMS ((struct type *));
 745
 746 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
 747
 748 extern void
 749 check_stub_method PARAMS ((struct type *, int, int));
 750
 751 extern struct type *
 752 lookup_primitive_typename PARAMS ((char *));
 753
 754 extern char *
 755 gdb_mangle_name PARAMS ((struct type *, int, int));
 756
 757 extern struct type *
 758 builtin_type PARAMS ((char **));
 759
 760 extern struct type *
 761 lookup_typename PARAMS ((char *, struct block *, int));
 762
 763 extern struct type *
 764 lookup_template_type PARAMS ((char *, struct type *, struct block *));
 765
 766 extern struct type *
 767 lookup_fundamental_type PARAMS ((struct objfile *, int));
 768
 769 extern void
 770 fill_in_vptr_fieldno PARAMS ((struct type *));
 771
 772 extern int get_discrete_bounds PARAMS ((struct type*, LONGEST*, LONGEST*));
 773
 774 #if MAINTENANCE_CMDS
 775 extern void recursive_dump_type PARAMS ((struct type *, int));
 776 #endif
 777
 778 /* printcmd.c */
 779
 780 extern void
 781 print_scalar_formatted PARAMS ((char *, struct type *, int, int, GDB_FILE *));
 782
 783 extern int can_dereference PARAMS ((struct type *));
 784
 785 #if MAINTENANCE_CMDS
 786 extern void maintenance_print_type PARAMS ((char *, int));
 787 #endif
 788
 789 #endif  /* GDBTYPES_H */