gdb/gdbtypes.h

   1 /* Internal type definitions for GDB.
   2    Copyright (C) 1992, 1993, 1994, 1996, 1998, 1999
   3    Free Software Foundation, Inc.
   4    Contributed by Cygnus Support, using pieces from other GDB modules.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #if !defined (GDBTYPES_H)
  24 #define GDBTYPES_H 1
  25
  26 /* Codes for `fundamental types'.  This is a monstrosity based on the
  27    bogus notion that there are certain compiler-independent
  28    `fundamental types'.  None of these is well-defined (how big is
  29    FT_SHORT?  Does it depend on the language?  How does the
  30    language-specific code know which type to correlate to FT_SHORT?)  */
  31
  32 #define FT_VOID                 0
  33 #define FT_BOOLEAN              1
  34 #define FT_CHAR                 2       /* we use this for not-unsigned C/C++ chars */
  35 #define FT_SIGNED_CHAR          3       /* we use this for C++ signed chars */
  36 #define FT_UNSIGNED_CHAR        4       /* we use this for C/C++ unsigned chars */
  37 #define FT_SHORT                5
  38 #define FT_SIGNED_SHORT         6
  39 #define FT_UNSIGNED_SHORT       7
  40 #define FT_INTEGER              8
  41 #define FT_SIGNED_INTEGER       9
  42 #define FT_UNSIGNED_INTEGER     10
  43 #define FT_LONG                 11
  44 #define FT_SIGNED_LONG          12
  45 #define FT_UNSIGNED_LONG        13
  46 #define FT_LONG_LONG            14
  47 #define FT_SIGNED_LONG_LONG     15
  48 #define FT_UNSIGNED_LONG_LONG   16
  49 #define FT_FLOAT                17
  50 #define FT_DBL_PREC_FLOAT       18
  51 #define FT_EXT_PREC_FLOAT       19
  52 #define FT_COMPLEX              20
  53 #define FT_DBL_PREC_COMPLEX     21
  54 #define FT_EXT_PREC_COMPLEX     22
  55 #define FT_STRING               23
  56 #define FT_FIXED_DECIMAL        24
  57 #define FT_FLOAT_DECIMAL        25
  58 #define FT_BYTE                 26
  59 #define FT_UNSIGNED_BYTE        27
  60 #define FT_TEMPLATE_ARG         28
  61
  62 #define FT_NUM_MEMBERS          29      /* Highest FT_* above, plus one. */
  63
  64 /* Some macros for char-based bitfields.  */
  65
  66 #define B_SET(a,x)      ((a)[(x)>>3] |= (1 << ((x)&7)))
  67 #define B_CLR(a,x)      ((a)[(x)>>3] &= ~(1 << ((x)&7)))
  68 #define B_TST(a,x)      ((a)[(x)>>3] & (1 << ((x)&7)))
  69 #define B_TYPE          unsigned char
  70 #define B_BYTES(x)      ( 1 + ((x)>>3) )
  71 #define B_CLRALL(a,x)   memset ((a), 0, B_BYTES(x))
  72
  73 /* Different kinds of data types are distinguished by the `code' field.  */
  74
  75 enum type_code
  76   {
  77     TYPE_CODE_UNDEF,            /* Not used; catches errors */
  78     TYPE_CODE_PTR,              /* Pointer type */
  79     TYPE_CODE_ARRAY,            /* Array type with lower & upper bounds. */
  80     TYPE_CODE_STRUCT,           /* C struct or Pascal record */
  81     TYPE_CODE_UNION,            /* C union or Pascal variant part */
  82     TYPE_CODE_ENUM,             /* Enumeration type */
  83     TYPE_CODE_FUNC,             /* Function type */
  84     TYPE_CODE_INT,              /* Integer type */
  85
  86     /* Floating type.  This is *NOT* a complex type.  Beware, there are parts
  87        of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  88     TYPE_CODE_FLT,
  89
  90     /* Void type.  The length field specifies the length (probably always
  91        one) which is used in pointer arithmetic involving pointers to
  92        this type, but actually dereferencing such a pointer is invalid;
  93        a void type has no length and no actual representation in memory
  94        or registers.  A pointer to a void type is a generic pointer.  */
  95     TYPE_CODE_VOID,
  96
  97     TYPE_CODE_SET,              /* Pascal sets */
  98     TYPE_CODE_RANGE,            /* Range (integers within spec'd bounds) */
  99
 100     /* A string type which is like an array of character but prints
 101        differently (at least for CHILL).  It does not contain a length
 102        field as Pascal strings (for many Pascals, anyway) do; if we want
 103        to deal with such strings, we should use a new type code.  */
 104     TYPE_CODE_STRING,
 105
 106     /* String of bits; like TYPE_CODE_SET but prints differently (at least
 107        for CHILL).  */
 108     TYPE_CODE_BITSTRING,
 109
 110     /* Unknown type.  The length field is valid if we were able to
 111        deduce that much about the type, or 0 if we don't even know that.  */
 112     TYPE_CODE_ERROR,
 113
 114     /* C++ */
 115     TYPE_CODE_MEMBER,           /* Member type */
 116     TYPE_CODE_METHOD,           /* Method type */
 117     TYPE_CODE_REF,              /* C++ Reference types */
 118
 119     TYPE_CODE_CHAR,             /* *real* character type */
 120
 121     /* Boolean type.  0 is false, 1 is true, and other values are non-boolean
 122        (e.g. FORTRAN "logical" used as unsigned int).  */
 123     TYPE_CODE_BOOL,
 124
 125     /* Fortran */
 126     TYPE_CODE_COMPLEX,          /* Complex float */
 127
 128     TYPE_CODE_TYPEDEF,
 129     TYPE_CODE_TEMPLATE,         /* C++ template */
 130     TYPE_CODE_TEMPLATE_ARG      /* C++ template arg */
 131
 132   };
 133
 134 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 135    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 136    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 137    so that we can print "class" or "struct" depending on what the debug
 138    info said.  It's not clear we should bother.  */
 139
 140 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 141
 142 /* Some bits for the type's flags word. */
 143
 144 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 145    type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
 146
 147 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 148
 149 /* No sign for this type.  In C++, "char", "signed char", and "unsigned
 150    char" are distinct types; so we need an extra flag to indicate the
 151    absence ofa sign! */
 152
 153 #define TYPE_FLAG_NOSIGN        (1 << 1)
 154
 155 /* This appears in a type's flags word if it is a stub type (e.g., if
 156    someone referenced a type that wasn't defined in a source file
 157    via (struct sir_not_appearing_in_this_film *)).  */
 158
 159 #define TYPE_FLAG_STUB          (1 << 2)
 160
 161 /* The target type of this type is a stub type, and this type needs to
 162    be updated if it gets un-stubbed in check_typedef.
 163    Used for arrays and ranges, in which TYPE_LENGTH of the array/range
 164    gets set based on the TYPE_LENGTH of the target type.
 165    Also, set for TYPE_CODE_TYPEDEF. */
 166
 167 #define TYPE_FLAG_TARGET_STUB (1 << 3)
 168
 169 /* Static type.  If this is set, the corresponding type had
 170  * a static modifier.
 171  * Note: This may be unnecessary, since static data members
 172  * are indicated by other means (bitpos == -1)
 173  */
 174
 175 #define TYPE_FLAG_STATIC (1 << 4)
 176
 177 /* Constant type.  If this is set, the corresponding type has a
 178  * const modifier.
 179  */
 180
 181 #define TYPE_FLAG_CONST (1 << 5)
 182
 183 /* Volatile type.  If this is set, the corresponding type has a
 184  * volatile modifier.
 185  */
 186
 187 #define TYPE_FLAG_VOLATILE (1 << 6)
 188
 189
 190 /* This is a function type which appears to have a prototype.  We need this
 191    for function calls in order to tell us if it's necessary to coerce the args,
 192    or to just do the standard conversions.  This is used with a short field. */
 193
 194 #define TYPE_FLAG_PROTOTYPED (1 << 7)
 195
 196 /* This flag is used to indicate that processing for this type
 197    is incomplete.
 198
 199    (Mostly intended for HP platforms, where class methods, for
 200    instance, can be encountered before their classes in the debug
 201    info; the incomplete type has to be marked so that the class and
 202    the method can be assigned correct types.) */
 203
 204 #define TYPE_FLAG_INCOMPLETE (1 << 8)
 205
 206
 207 struct type
 208   {
 209
 210     /* Code for kind of type */
 211
 212     enum type_code code;
 213
 214     /* Name of this type, or NULL if none.
 215
 216        This is used for printing only, except by poorly designed C++ code.
 217        For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 218
 219     char *name;
 220
 221     /* Tag name for this type, or NULL if none.  This means that the
 222        name of the type consists of a keyword followed by the tag name.
 223        Which keyword is determined by the type code ("struct" for
 224        TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 225        with this feature.
 226
 227        This is used for printing only, except by poorly designed C++ code.
 228        For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 229        One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 230        the name to use to look for definitions in other files.  */
 231
 232     char *tag_name;
 233
 234     /* Length of storage for a value of this type.  Various places pass
 235        this to memcpy and such, meaning it must be in units of
 236        HOST_CHAR_BIT.  Various other places expect they can calculate
 237        addresses by adding it and such, meaning it must be in units of
 238        TARGET_CHAR_BIT.  For some DSP targets, in which HOST_CHAR_BIT
 239        will (presumably) be 8 and TARGET_CHAR_BIT will be (say) 32, this
 240        is a problem.  One fix would be to make this field in bits
 241        (requiring that it always be a multiple of HOST_CHAR_BIT and
 242        TARGET_CHAR_BIT)--the other choice would be to make it
 243        consistently in units of HOST_CHAR_BIT.  */
 244
 245     unsigned length;
 246
 247     /* FIXME, these should probably be restricted to a Fortran-specific
 248        field in some fashion.  */
 249 #define BOUND_CANNOT_BE_DETERMINED   5
 250 #define BOUND_BY_REF_ON_STACK        4
 251 #define BOUND_BY_VALUE_ON_STACK      3
 252 #define BOUND_BY_REF_IN_REG          2
 253 #define BOUND_BY_VALUE_IN_REG        1
 254 #define BOUND_SIMPLE                 0
 255     int upper_bound_type;
 256     int lower_bound_type;
 257
 258     /* Every type is now associated with a particular objfile, and the
 259        type is allocated on the type_obstack for that objfile.  One problem
 260        however, is that there are times when gdb allocates new types while
 261        it is not in the process of reading symbols from a particular objfile.
 262        Fortunately, these happen when the type being created is a derived
 263        type of an existing type, such as in lookup_pointer_type().  So
 264        we can just allocate the new type using the same objfile as the
 265        existing type, but to do this we need a backpointer to the objfile
 266        from the existing type.  Yes this is somewhat ugly, but without
 267        major overhaul of the internal type system, it can't be avoided
 268        for now. */
 269
 270     struct objfile *objfile;
 271
 272     /* For a pointer type, describes the type of object pointed to.
 273        For an array type, describes the type of the elements.
 274        For a function or method type, describes the type of the return value.
 275        For a range type, describes the type of the full range.
 276        For a complex type, describes the type of each coordinate.
 277        Unused otherwise.  */
 278
 279     struct type *target_type;
 280
 281     /* Type that is a pointer to this type.
 282        NULL if no such pointer-to type is known yet.
 283        The debugger may add the address of such a type
 284        if it has to construct one later.  */
 285
 286     struct type *pointer_type;
 287
 288     /* C++: also need a reference type.  */
 289
 290     struct type *reference_type;
 291
 292     /* C-v variant chain. This points to a type that
 293        differs from this one only in a const or volatile
 294        attribute (or both). The various c-v variants
 295        are chained together in a ring. */
 296     struct type *cv_type;
 297
 298     /* Flags about this type.  */
 299
 300     int flags;
 301
 302     /* Number of fields described for this type */
 303
 304     short nfields;
 305
 306     /* For structure and union types, a description of each field.
 307        For set and pascal array types, there is one "field",
 308        whose type is the domain type of the set or array.
 309        For range types, there are two "fields",
 310        the minimum and maximum values (both inclusive).
 311        For enum types, each possible value is described by one "field".
 312        For a function type, a "field" for each parameter type.
 313        For C++ classes, there is one field for each base class (if it is
 314        a derived class) plus one field for each class data member.  Member
 315        functions are recorded elsewhere.
 316
 317        Using a pointer to a separate array of fields
 318        allows all types to have the same size, which is useful
 319        because we can allocate the space for a type before
 320        we know what to put in it.  */
 321
 322     struct field
 323       {
 324
 325
 326
 327         union field_location
 328           {
 329             /* Position of this field, counting in bits from start of
 330                containing structure.
 331                For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 332                For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
 333                For a function type, this is the position in the argument list
 334                of this argument.
 335                For a range bound or enum value, this is the value itself. */
 336
 337             int bitpos;
 338
 339             /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
 340                is the location (in the target) of the static field.
 341                Otherwise, physname is the mangled label of the static field. */
 342
 343             CORE_ADDR physaddr;
 344             char *physname;
 345           }
 346         loc;
 347
 348         /* Size of this field, in bits, or zero if not packed.
 349            For an unpacked field, the field's type's length
 350            says how many bytes the field occupies.
 351            A value of -1 or -2 indicates a static field;  -1 means the location
 352            is specified by the label loc.physname;  -2 means that loc.physaddr
 353            specifies the actual address. */
 354
 355         int bitsize;
 356
 357         /* In a struct or union type, type of this field.
 358            In a function type, type of this argument.
 359            In an array type, the domain-type of the array.  */
 360
 361         struct type *type;
 362
 363         /* Name of field, value or argument.
 364            NULL for range bounds and array domains.  */
 365
 366         char *name;
 367
 368       }
 369      *fields;
 370
 371     /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
 372        is the base class which defined the virtual function table pointer.
 373
 374        For types that are pointer to member types (TYPE_CODE_MEMBER),
 375        VPTR_BASETYPE is the type that this pointer is a member of.
 376
 377        For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
 378        type that contains the method.
 379
 380        Unused otherwise.  */
 381
 382     struct type *vptr_basetype;
 383
 384     /* Field number of the virtual function table pointer in
 385        VPTR_BASETYPE.  If -1, we were unable to find the virtual
 386        function table pointer in initial symbol reading, and
 387        fill_in_vptr_fieldno should be called to find it if possible.
 388
 389        Unused if this type does not have virtual functions.  */
 390
 391     int vptr_fieldno;
 392
 393     /* Slot to point to additional language-specific fields of this type.  */
 394
 395     union type_specific
 396       {
 397
 398         /* ARG_TYPES is for TYPE_CODE_METHOD.
 399            Contains the type of each argument, ending with a void type
 400            after the last argument for normal member functions or a NULL
 401            pointer after the last argument for functions with variable
 402            arguments.  */
 403
 404         struct type **arg_types;
 405
 406         /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 407            cplus_struct_default, a default static instance of a struct
 408            cplus_struct_type. */
 409
 410         struct cplus_struct_type *cplus_stuff;
 411
 412       }
 413     type_specific;
 414   };
 415
 416 #define NULL_TYPE ((struct type *) 0)
 417
 418 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 419    nodes.  */
 420
 421 struct cplus_struct_type
 422   {
 423     /* Number of base classes this type derives from.  The baseclasses are
 424        stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 425        the struct type).  I think only the `type' field of such a field has
 426        any meaning.  */
 427
 428     short n_baseclasses;
 429
 430     /* Number of methods with unique names.  All overloaded methods with
 431        the same name count only once. */
 432
 433     short nfn_fields;
 434
 435     /* Number of methods described for this type, not including the
 436        methods that it derives from.  */
 437
 438     short nfn_fields_total;
 439
 440     /* The "declared_type" field contains a code saying how the
 441        user really declared this type, e.g., "class s", "union s",
 442        "struct s".
 443        The 3 above things come out from the C++ compiler looking like classes,
 444        but we keep track of the real declaration so we can give
 445        the correct information on "ptype". (Note: TEMPLATE may not
 446        belong in this list...)  */
 447
 448 #define DECLARED_TYPE_CLASS 0
 449 #define DECLARED_TYPE_UNION 1
 450 #define DECLARED_TYPE_STRUCT 2
 451 #define DECLARED_TYPE_TEMPLATE 3
 452     short declared_type;        /* One of the above codes */
 453
 454     /* For derived classes, the number of base classes is given by n_baseclasses
 455        and virtual_field_bits is a bit vector containing one bit per base class.
 456        If the base class is virtual, the corresponding bit will be set.
 457        I.E, given:
 458
 459        class A{};
 460        class B{};
 461        class C : public B, public virtual A {};
 462
 463        B is a baseclass of C; A is a virtual baseclass for C.
 464        This is a C++ 2.0 language feature. */
 465
 466     B_TYPE *virtual_field_bits;
 467
 468     /* For classes with private fields, the number of fields is given by
 469        nfields and private_field_bits is a bit vector containing one bit
 470        per field.
 471        If the field is private, the corresponding bit will be set. */
 472
 473     B_TYPE *private_field_bits;
 474
 475     /* For classes with protected fields, the number of fields is given by
 476        nfields and protected_field_bits is a bit vector containing one bit
 477        per field.
 478        If the field is private, the corresponding bit will be set. */
 479
 480     B_TYPE *protected_field_bits;
 481
 482     /* for classes with fields to be ignored, either this is optimized out
 483        or this field has length 0 */
 484
 485     B_TYPE *ignore_field_bits;
 486
 487     /* For classes, structures, and unions, a description of each field,
 488        which consists of an overloaded name, followed by the types of
 489        arguments that the method expects, and then the name after it
 490        has been renamed to make it distinct.
 491
 492        fn_fieldlists points to an array of nfn_fields of these. */
 493
 494     struct fn_fieldlist
 495       {
 496
 497         /* The overloaded name.  */
 498
 499         char *name;
 500
 501         /* The number of methods with this name.  */
 502
 503         int length;
 504
 505         /* The list of methods.  */
 506
 507         struct fn_field
 508           {
 509
 510             /* If is_stub is clear, this is the mangled name which we can
 511                look up to find the address of the method (FIXME: it would
 512                be cleaner to have a pointer to the struct symbol here
 513                instead).  */
 514
 515             /* If is_stub is set, this is the portion of the mangled
 516                name which specifies the arguments.  For example, "ii",
 517                if there are two int arguments, or "" if there are no
 518                arguments.  See gdb_mangle_name for the conversion from this
 519                format to the one used if is_stub is clear.  */
 520
 521             char *physname;
 522
 523             /* The function type for the method.
 524                (This comment used to say "The return value of the method",
 525                but that's wrong. The function type
 526                is expected here, i.e. something with TYPE_CODE_FUNC,
 527                and *not* the return-value type). */
 528
 529             struct type *type;
 530
 531             /* The argument list.  Only valid if is_stub is clear.  Contains
 532                the type of each argument, including `this', and ending with
 533                a NULL pointer after the last argument.  Should not contain
 534                a `this' pointer for static member functions.  */
 535
 536             struct type **args;
 537
 538             /* For virtual functions.
 539                First baseclass that defines this virtual function.   */
 540
 541             struct type *fcontext;
 542
 543             /* Attributes. */
 544
 545             unsigned int is_const:1;
 546             unsigned int is_volatile:1;
 547             unsigned int is_private:1;
 548             unsigned int is_protected:1;
 549             unsigned int is_public:1;
 550             unsigned int is_abstract:1;
 551             unsigned int is_static:1;
 552             unsigned int is_final:1;
 553             unsigned int is_synchronized:1;
 554             unsigned int is_native:1;
 555
 556             /* A stub method only has some fields valid (but they are enough
 557                to reconstruct the rest of the fields).  */
 558             unsigned int is_stub:1;
 559
 560             /* C++ method that is inlined */
 561             unsigned int is_inlined:1;
 562
 563             /* Unused.  */
 564             unsigned int dummy:4;
 565
 566             /* Index into that baseclass's virtual function table,
 567                minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 568
 569             unsigned int voffset:16;
 570
 571 #define VOFFSET_STATIC 1
 572
 573           }
 574          *fn_fields;
 575
 576       }
 577      *fn_fieldlists;
 578
 579     /* If this "struct type" describes a template, then it
 580      * has arguments. "template_args" points to an array of
 581      * template arg descriptors, of length "ntemplate_args".
 582      * The only real information in each of these template arg descriptors
 583      * is a name. "type" will typically just point to a "struct type" with
 584      * the placeholder TYPE_CODE_TEMPLATE_ARG type.
 585      */
 586     short ntemplate_args;
 587     struct template_arg
 588       {
 589         char *name;
 590         struct type *type;
 591       }
 592      *template_args;
 593
 594     /* If this "struct type" describes a template, it has a list
 595      * of instantiations. "instantiations" is a pointer to an array
 596      * of type's, one representing each instantiation. There
 597      * are "ninstantiations" elements in this array.
 598      */
 599     short ninstantiations;
 600     struct type **instantiations;
 601
 602     /* The following points to information relevant to the runtime model
 603      * of the compiler.
 604      * Currently being used only for HP's ANSI C++ compiler.
 605      * (This type may have to be changed/enhanced for other compilers.)
 606      *
 607      * RUNTIME_PTR is NULL if there is no runtime information (currently
 608      * this means the type was not compiled by HP aCC).
 609      *
 610      * Fields in structure pointed to:
 611      * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
 612      *
 613      * ->PRIMARY_BASE points to the first non-virtual base class that has
 614      * a virtual table.
 615      *
 616      * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
 617      * point to the type information for all virtual bases among this type's
 618      * ancestors.
 619      */
 620     struct runtime_info
 621       {
 622         short has_vtable;
 623         struct type *primary_base;
 624         struct type **virtual_base_list;
 625       }
 626      *runtime_ptr;
 627
 628     /* Pointer to information about enclosing scope, if this is a
 629      * local type.  If it is not a local type, this is NULL
 630      */
 631     struct local_type_info
 632       {
 633         char *file;
 634         int line;
 635       }
 636      *localtype_ptr;
 637   };
 638
 639 /* Struct used in computing virtual base list */
 640 struct vbase
 641   {
 642     struct type *vbasetype;     /* pointer to virtual base */
 643     struct vbase *next;         /* next in chain */
 644   };
 645
 646 /* Struct used for ranking a function for overload resolution */
 647 struct badness_vector
 648   {
 649     int length;
 650     int *rank;
 651   };
 652
 653 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 654    this shared static structure. */
 655
 656 extern const struct cplus_struct_type cplus_struct_default;
 657
 658 extern void
 659 allocate_cplus_struct_type PARAMS ((struct type *));
 660
 661 #define INIT_CPLUS_SPECIFIC(type) \
 662   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 663 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 664 #define HAVE_CPLUS_STRUCT(type) \
 665   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 666
 667 #define TYPE_NAME(thistype) (thistype)->name
 668 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 669 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 670 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 671 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 672 #define TYPE_CV_TYPE(thistype) (thistype)->cv_type
 673 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
 674    But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
 675    so you only have to call check_typedef once.  Since allocate_value
 676    calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe.  */
 677 #define TYPE_LENGTH(thistype) (thistype)->length
 678 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 679 #define TYPE_FLAGS(thistype) (thistype)->flags
 680 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 681 #define TYPE_NOSIGN(thistype) ((thistype)->flags & TYPE_FLAG_NOSIGN)
 682 #define TYPE_CONST(thistype) ((thistype)->flags & TYPE_FLAG_CONST)
 683 #define TYPE_VOLATILE(thistype) ((thistype)->flags & TYPE_FLAG_VOLATILE)
 684 #define TYPE_INCOMPLETE(thistype) ((thistype)->flags & TYPE_FLAG_INCOMPLETE)
 685 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
 686    type, you need to do TYPE_CODE (check_type (this_type)). */
 687 #define TYPE_CODE(thistype) (thistype)->code
 688 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 689 #define TYPE_FIELDS(thistype) (thistype)->fields
 690 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
 691 #define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
 692
 693 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
 694 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 695 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 696
 697 /* Moto-specific stuff for FORTRAN arrays */
 698
 699 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
 700 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
 701
 702 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
 703    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
 704
 705 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
 706    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
 707
 708 /* C++ */
 709
 710 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 711 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 712 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 713 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 714 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 715 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 716 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
 717 #define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
 718 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
 719 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 720 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 721 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 722 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 723 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 724 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 725 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
 726 #define BASETYPE_VIA_PUBLIC(thistype, index) \
 727   ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
 728
 729 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 730   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 731     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
 732
 733 #define FIELD_TYPE(thisfld) ((thisfld).type)
 734 #define FIELD_NAME(thisfld) ((thisfld).name)
 735 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
 736 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
 737 #define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
 738 #define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
 739 #define SET_FIELD_PHYSNAME(thisfld, name) \
 740   ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
 741 #define SET_FIELD_PHYSADDR(thisfld, name) \
 742   ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
 743 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 744 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
 745 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
 746 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
 747 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
 748 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
 749 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
 750 #define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
 751
 752 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 753   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 754 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 755   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 756 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 757   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 758 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 759   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 760 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 761   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 762 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 763   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 764 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 765   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 766 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 767   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 768 #define TYPE_FIELD_PRIVATE(thistype, n) \
 769   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 770     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 771 #define TYPE_FIELD_PROTECTED(thistype, n) \
 772   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 773     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 774 #define TYPE_FIELD_IGNORE(thistype, n) \
 775   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 776     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 777 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 778   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 779     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
 780
 781 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitsize < 0)
 782 #define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) ((thistype)->fields[n].bitsize == -2)
 783 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
 784 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
 785
 786 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 787 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 788 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 789 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 790 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 791
 792 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 793 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 794 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 795 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 796 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 797 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 798 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 799 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 800 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
 801 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
 802 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
 803 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
 804 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
 805 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
 806 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 807 #define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
 808 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 809 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 810 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 811 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 812
 813 #define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
 814 #define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
 815 #define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
 816 #define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
 817 #define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
 818
 819 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
 820 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
 821 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
 822
 823 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) ||        \
 824                                    (TYPE_CODE (thistype) == TYPE_CODE_UNION))        && \
 825                                   (TYPE_NFIELDS (thistype) == 0)                     && \
 826                                   (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
 827
 828
 829
 830 /* Implicit sizes */
 831 extern struct type *builtin_type_void;
 832 extern struct type *builtin_type_char;
 833 extern struct type *builtin_type_short;
 834 extern struct type *builtin_type_int;
 835 extern struct type *builtin_type_long;
 836 extern struct type *builtin_type_signed_char;
 837 extern struct type *builtin_type_unsigned_char;
 838 extern struct type *builtin_type_unsigned_short;
 839 extern struct type *builtin_type_unsigned_int;
 840 extern struct type *builtin_type_unsigned_long;
 841 extern struct type *builtin_type_float;
 842 extern struct type *builtin_type_double;
 843 extern struct type *builtin_type_long_double;
 844 extern struct type *builtin_type_complex;
 845 extern struct type *builtin_type_double_complex;
 846 extern struct type *builtin_type_string;
 847 extern struct type *builtin_type_bool;
 848
 849 /* Explicit sizes - see <intypes.h> for naming schema */
 850 extern struct type *builtin_type_int8;
 851 extern struct type *builtin_type_uint8;
 852 extern struct type *builtin_type_int16;
 853 extern struct type *builtin_type_uint16;
 854 extern struct type *builtin_type_int32;
 855 extern struct type *builtin_type_uint32;
 856 extern struct type *builtin_type_int64;
 857 extern struct type *builtin_type_uint64;
 858
 859 /* We use this for the '/c' print format, because builtin_type_char is
 860    just a one-byte integral type, which languages less laid back than
 861    C will print as ... well, a one-byte integral type.  */
 862 extern struct type *builtin_type_true_char;
 863
 864 /* This type represents a type that was unrecognized in symbol
 865    read-in.  */
 866
 867 extern struct type *builtin_type_error;
 868
 869 extern struct type *builtin_type_long_long;
 870 extern struct type *builtin_type_unsigned_long_long;
 871
 872 /* Modula-2 types */
 873
 874 extern struct type *builtin_type_m2_char;
 875 extern struct type *builtin_type_m2_int;
 876 extern struct type *builtin_type_m2_card;
 877 extern struct type *builtin_type_m2_real;
 878 extern struct type *builtin_type_m2_bool;
 879
 880 /* Chill types */
 881
 882 extern struct type *builtin_type_chill_bool;
 883 extern struct type *builtin_type_chill_char;
 884 extern struct type *builtin_type_chill_long;
 885 extern struct type *builtin_type_chill_ulong;
 886 extern struct type *builtin_type_chill_real;
 887
 888 /* Fortran (F77) types */
 889
 890 extern struct type *builtin_type_f_character;
 891 extern struct type *builtin_type_f_integer;
 892 extern struct type *builtin_type_f_logical;
 893 extern struct type *builtin_type_f_logical_s1;
 894 extern struct type *builtin_type_f_logical_s2;
 895 extern struct type *builtin_type_f_integer;
 896 extern struct type *builtin_type_f_integer_s2;
 897 extern struct type *builtin_type_f_real;
 898 extern struct type *builtin_type_f_real_s8;
 899 extern struct type *builtin_type_f_real_s16;
 900 extern struct type *builtin_type_f_complex_s8;
 901 extern struct type *builtin_type_f_complex_s16;
 902 extern struct type *builtin_type_f_complex_s32;
 903 extern struct type *builtin_type_f_void;
 904
 905 /* RTTI for C++ */
 906 /* extern struct type *builtin_type_cxx_typeinfo; */
 907
 908 /* Maximum and minimum values of built-in types */
 909
 910 #define MAX_OF_TYPE(t)  \
 911    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 912     : MAX_OF_SIZE(TYPE_LENGTH(t))
 913
 914 #define MIN_OF_TYPE(t)  \
 915    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 916     : MIN_OF_SIZE(TYPE_LENGTH(t))
 917
 918 /* Allocate space for storing data associated with a particular type.
 919    We ensure that the space is allocated using the same mechanism that
 920    was used to allocate the space for the type structure itself.  I.E.
 921    if the type is on an objfile's type_obstack, then the space for data
 922    associated with that type will also be allocated on the type_obstack.
 923    If the type is not associated with any particular objfile (such as
 924    builtin types), then the data space will be allocated with xmalloc,
 925    the same as for the type structure. */
 926
 927 #define TYPE_ALLOC(t,size)  \
 928    (TYPE_OBJFILE (t) != NULL  \
 929     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 930     : xmalloc (size))
 931
 932 extern struct type *
 933   alloc_type PARAMS ((struct objfile *));
 934
 935 extern struct type *
 936   init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 937
 938 extern struct type *
 939   lookup_reference_type PARAMS ((struct type *));
 940
 941 extern struct type *
 942   make_reference_type PARAMS ((struct type *, struct type **));
 943
 944 extern struct type *
 945   make_cv_type PARAMS ((int, int, struct type *, struct type **));
 946
 947 extern struct type *
 948   lookup_member_type PARAMS ((struct type *, struct type *));
 949
 950 extern void
 951 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 952                               struct type **));
 953
 954 extern void
 955 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 956
 957 extern struct type *
 958   allocate_stub_method PARAMS ((struct type *));
 959
 960 extern char *
 961   type_name_no_tag PARAMS ((const struct type *));
 962
 963 extern struct type *
 964   lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 965
 966 extern struct type *
 967   make_pointer_type PARAMS ((struct type *, struct type **));
 968
 969 extern struct type *
 970   lookup_pointer_type PARAMS ((struct type *));
 971
 972 extern struct type *
 973   make_function_type PARAMS ((struct type *, struct type **));
 974
 975 extern struct type *
 976   lookup_function_type PARAMS ((struct type *));
 977
 978 extern struct type *
 979   create_range_type PARAMS ((struct type *, struct type *, int, int));
 980
 981 extern struct type *
 982   create_array_type PARAMS ((struct type *, struct type *, struct type *));
 983
 984 extern struct type *
 985   create_string_type PARAMS ((struct type *, struct type *));
 986
 987 extern struct type *create_set_type PARAMS ((struct type *, struct type *));
 988
 989 extern int chill_varying_type PARAMS ((struct type *));
 990
 991 extern struct type *
 992   lookup_unsigned_typename PARAMS ((char *));
 993
 994 extern struct type *
 995   lookup_signed_typename PARAMS ((char *));
 996
 997 extern struct type *
 998   check_typedef PARAMS ((struct type *));
 999
1000 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1001
1002 extern void
1003 check_stub_method PARAMS ((struct type *, int, int));
1004
1005 extern struct type *
1006   lookup_primitive_typename PARAMS ((char *));
1007
1008 extern char *
1009   gdb_mangle_name PARAMS ((struct type *, int, int));
1010
1011 extern struct type *
1012   builtin_type PARAMS ((char **));
1013
1014 extern struct type *
1015   lookup_typename PARAMS ((char *, struct block *, int));
1016
1017 extern struct type *
1018   lookup_template_type PARAMS ((char *, struct type *, struct block *));
1019
1020 extern struct type *
1021   lookup_fundamental_type PARAMS ((struct objfile *, int));
1022
1023 extern void
1024 fill_in_vptr_fieldno PARAMS ((struct type *));
1025
1026 extern int get_destructor_fn_field PARAMS ((struct type *, int *, int *));
1027
1028 extern int get_discrete_bounds PARAMS ((struct type *, LONGEST *, LONGEST *));
1029
1030 extern int
1031 is_ancestor PARAMS ((struct type *, struct type *));
1032
1033 extern int
1034 has_vtable PARAMS ((struct type *));
1035
1036 extern struct type *
1037   primary_base_class PARAMS ((struct type *));
1038
1039 extern struct type **
1040   virtual_base_list PARAMS ((struct type *));
1041
1042 extern int
1043 virtual_base_list_length PARAMS ((struct type *));
1044 extern int
1045 virtual_base_list_length_skip_primaries PARAMS ((struct type *));
1046
1047 extern int
1048 virtual_base_index PARAMS ((struct type *, struct type *));
1049 extern int
1050 virtual_base_index_skip_primaries PARAMS ((struct type *, struct type *));
1051
1052
1053 extern int
1054 class_index_in_primary_list PARAMS ((struct type *));
1055
1056 extern int
1057 count_virtual_fns PARAMS ((struct type *));
1058
1059 /* Constants for HP/Taligent ANSI C++ runtime model */
1060
1061 /* Where virtual function entries begin in the
1062  * virtual table, in the non-RRBC vtable format.
1063  * First 4 are the metavtable pointer, top offset,
1064  * typeinfo pointer, and dup base info pointer */
1065 #define HP_ACC_VFUNC_START        4
1066
1067 /* (Negative) Offset where virtual base offset entries begin
1068  * in the virtual table. Skips over metavtable pointer and
1069  * the self-offset entry.
1070  * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1071  * appear before the address point of the vtable (the slot
1072  * pointed to by the object's vtable pointer), i.e. at lower
1073  * addresses than the vtable pointer. */
1074 #define HP_ACC_VBASE_START        2
1075
1076 /* (Positive) Offset where the pointer to the typeinfo
1077  * object is present in the virtual table */
1078 #define HP_ACC_TYPEINFO_OFFSET    2
1079
1080 /* (Positive) Offset where the ``top offset'' entry of
1081  * the virtual table is */
1082 #define HP_ACC_TOP_OFFSET_OFFSET  1
1083
1084 /* Overload resolution */
1085
1086 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1087
1088 /* Badness if parameter list length doesn't match arg list length */
1089 #define LENGTH_MISMATCH_BADNESS      100
1090 /* Dummy badness value for nonexistent parameter positions */
1091 #define TOO_FEW_PARAMS_BADNESS       100
1092 /* Badness if no conversion among types */
1093 #define INCOMPATIBLE_TYPE_BADNESS    100
1094 /* Badness of coercing large integer to smaller size */
1095 #define INTEGER_COERCION_BADNESS     100
1096 /* Badness of coercing large floating type to smaller size */
1097 #define FLOAT_COERCION_BADNESS       100
1098
1099 /* Badness of integral promotion */
1100 #define INTEGER_PROMOTION_BADNESS      1
1101 /* Badness of floating promotion */
1102 #define FLOAT_PROMOTION_BADNESS        1
1103 /* Badness of integral conversion */
1104 #define INTEGER_CONVERSION_BADNESS     2
1105 /* Badness of floating conversion */
1106 #define FLOAT_CONVERSION_BADNESS       2
1107 /* Badness of integer<->floating conversions */
1108 #define INT_FLOAT_CONVERSION_BADNESS   2
1109 /* Badness of converting to a boolean */
1110 #define BOOLEAN_CONVERSION_BADNESS     2
1111 /* Badness of pointer conversion */
1112 #define POINTER_CONVERSION_BADNESS     2
1113 /* Badness of conversion of pointer to void pointer */
1114 #define VOID_PTR_CONVERSION_BADNESS    2
1115 /* Badness of convering derived to base class */
1116 #define BASE_CONVERSION_BADNESS        2
1117
1118 /* Non-standard conversions allowed by the debugger */
1119 /* Converting a pointer to an int is usually OK */
1120 #define NS_POINTER_CONVERSION_BADNESS 10
1121
1122
1123 extern int
1124 compare_badness PARAMS ((struct badness_vector *, struct badness_vector *));
1125
1126 extern struct badness_vector *
1127   rank_function PARAMS ((struct type **, int, struct type **, int));
1128
1129 extern int
1130 rank_one_type PARAMS ((struct type *, struct type *));
1131
1132 extern void recursive_dump_type PARAMS ((struct type *, int));
1133
1134 /* printcmd.c */
1135
1136 extern void
1137 print_scalar_formatted PARAMS ((char *, struct type *, int, int, GDB_FILE *));
1138
1139 extern int can_dereference PARAMS ((struct type *));
1140
1141 extern void maintenance_print_type PARAMS ((char *, int));
1142
1143 /* typeprint.c */
1144
1145 extern void print_type_scalar PARAMS ((struct type *, LONGEST, GDB_FILE *));
1146
1147 #endif /* GDBTYPES_H */