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