gdb/gdbtypes.h

   1 /* Internal type definitions for GDB.
   2    Copyright (C) 1992-1994, 1996, 1998-2000 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,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #if !defined (GDBTYPES_H)
  23 #define GDBTYPES_H 1
  24
  25 /* Codes for `fundamental types'.  This is a monstrosity based on the
  26    bogus notion that there are certain compiler-independent
  27    `fundamental types'.  None of these is well-defined (how big is
  28    FT_SHORT?  Does it depend on the language?  How does the
  29    language-specific code know which type to correlate to FT_SHORT?)  */
  30
  31 #define FT_VOID                 0
  32 #define FT_BOOLEAN              1
  33 #define FT_CHAR                 2       /* we use this for not-unsigned C/C++ chars */
  34 #define FT_SIGNED_CHAR          3       /* we use this for C++ signed chars */
  35 #define FT_UNSIGNED_CHAR        4       /* we use this for C/C++ unsigned chars */
  36 #define FT_SHORT                5
  37 #define FT_SIGNED_SHORT         6
  38 #define FT_UNSIGNED_SHORT       7
  39 #define FT_INTEGER              8
  40 #define FT_SIGNED_INTEGER       9
  41 #define FT_UNSIGNED_INTEGER     10
  42 #define FT_LONG                 11
  43 #define FT_SIGNED_LONG          12
  44 #define FT_UNSIGNED_LONG        13
  45 #define FT_LONG_LONG            14
  46 #define FT_SIGNED_LONG_LONG     15
  47 #define FT_UNSIGNED_LONG_LONG   16
  48 #define FT_FLOAT                17
  49 #define FT_DBL_PREC_FLOAT       18
  50 #define FT_EXT_PREC_FLOAT       19
  51 #define FT_COMPLEX              20
  52 #define FT_DBL_PREC_COMPLEX     21
  53 #define FT_EXT_PREC_COMPLEX     22
  54 #define FT_STRING               23
  55 #define FT_FIXED_DECIMAL        24
  56 #define FT_FLOAT_DECIMAL        25
  57 #define FT_BYTE                 26
  58 #define FT_UNSIGNED_BYTE        27
  59 #define FT_TEMPLATE_ARG         28
  60
  61 #define FT_NUM_MEMBERS          29      /* Highest FT_* above, plus one. */
  62
  63 /* Some macros for char-based bitfields.  */
  64
  65 #define B_SET(a,x)      ((a)[(x)>>3] |= (1 << ((x)&7)))
  66 #define B_CLR(a,x)      ((a)[(x)>>3] &= ~(1 << ((x)&7)))
  67 #define B_TST(a,x)      ((a)[(x)>>3] & (1 << ((x)&7)))
  68 #define B_TYPE          unsigned char
  69 #define B_BYTES(x)      ( 1 + ((x)>>3) )
  70 #define B_CLRALL(a,x)   memset ((a), 0, B_BYTES(x))
  71
  72 /* Different kinds of data types are distinguished by the `code' field.  */
  73
  74 enum type_code
  75   {
  76     TYPE_CODE_UNDEF,            /* Not used; catches errors */
  77     TYPE_CODE_PTR,              /* Pointer type */
  78     TYPE_CODE_ARRAY,            /* Array type with lower & upper bounds. */
  79     TYPE_CODE_STRUCT,           /* C struct or Pascal record */
  80     TYPE_CODE_UNION,            /* C union or Pascal variant part */
  81     TYPE_CODE_ENUM,             /* Enumeration type */
  82     TYPE_CODE_FUNC,             /* Function type */
  83     TYPE_CODE_INT,              /* Integer type */
  84
  85     /* Floating type.  This is *NOT* a complex type.  Beware, there are parts
  86        of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  87     TYPE_CODE_FLT,
  88
  89     /* Void type.  The length field specifies the length (probably always
  90        one) which is used in pointer arithmetic involving pointers to
  91        this type, but actually dereferencing such a pointer is invalid;
  92        a void type has no length and no actual representation in memory
  93        or registers.  A pointer to a void type is a generic pointer.  */
  94     TYPE_CODE_VOID,
  95
  96     TYPE_CODE_SET,              /* Pascal sets */
  97     TYPE_CODE_RANGE,            /* Range (integers within spec'd bounds) */
  98
  99     /* A string type which is like an array of character but prints
 100        differently (at least for CHILL).  It does not contain a length
 101        field as Pascal strings (for many Pascals, anyway) do; if we want
 102        to deal with such strings, we should use a new type code.  */
 103     TYPE_CODE_STRING,
 104
 105     /* String of bits; like TYPE_CODE_SET but prints differently (at least
 106        for CHILL).  */
 107     TYPE_CODE_BITSTRING,
 108
 109     /* Unknown type.  The length field is valid if we were able to
 110        deduce that much about the type, or 0 if we don't even know that.  */
 111     TYPE_CODE_ERROR,
 112
 113     /* C++ */
 114     TYPE_CODE_MEMBER,           /* Member type */
 115     TYPE_CODE_METHOD,           /* Method type */
 116     TYPE_CODE_REF,              /* C++ Reference types */
 117
 118     TYPE_CODE_CHAR,             /* *real* character type */
 119
 120     /* Boolean type.  0 is false, 1 is true, and other values are non-boolean
 121        (e.g. FORTRAN "logical" used as unsigned int).  */
 122     TYPE_CODE_BOOL,
 123
 124     /* Fortran */
 125     TYPE_CODE_COMPLEX,          /* Complex float */
 126
 127     TYPE_CODE_TYPEDEF,
 128     TYPE_CODE_TEMPLATE,         /* C++ template */
 129     TYPE_CODE_TEMPLATE_ARG      /* C++ template arg */
 130
 131   };
 132
 133 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 134    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 135    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 136    so that we can print "class" or "struct" depending on what the debug
 137    info said.  It's not clear we should bother.  */
 138
 139 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 140
 141 /* Some bits for the type's flags word. */
 142
 143 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 144    type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
 145
 146 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 147
 148 /* No sign for this type.  In C++, "char", "signed char", and "unsigned
 149    char" are distinct types; so we need an extra flag to indicate the
 150    absence ofa sign! */
 151
 152 #define TYPE_FLAG_NOSIGN        (1 << 1)
 153
 154 /* This appears in a type's flags word if it is a stub type (e.g., if
 155    someone referenced a type that wasn't defined in a source file
 156    via (struct sir_not_appearing_in_this_film *)).  */
 157
 158 #define TYPE_FLAG_STUB          (1 << 2)
 159
 160 /* The target type of this type is a stub type, and this type needs to
 161    be updated if it gets un-stubbed in check_typedef.
 162    Used for arrays and ranges, in which TYPE_LENGTH of the array/range
 163    gets set based on the TYPE_LENGTH of the target type.
 164    Also, set for TYPE_CODE_TYPEDEF. */
 165
 166 #define TYPE_FLAG_TARGET_STUB (1 << 3)
 167
 168 /* Static type.  If this is set, the corresponding type had
 169  * a static modifier.
 170  * Note: This may be unnecessary, since static data members
 171  * are indicated by other means (bitpos == -1)
 172  */
 173
 174 #define TYPE_FLAG_STATIC (1 << 4)
 175
 176 /* Constant type.  If this is set, the corresponding type has a
 177  * const modifier.
 178  */
 179
 180 #define TYPE_FLAG_CONST (1 << 5)
 181
 182 /* Volatile type.  If this is set, the corresponding type has a
 183  * volatile modifier.
 184  */
 185
 186 #define TYPE_FLAG_VOLATILE (1 << 6)
 187
 188
 189 /* This is a function type which appears to have a prototype.  We need this
 190    for function calls in order to tell us if it's necessary to coerce the args,
 191    or to just do the standard conversions.  This is used with a short field. */
 192
 193 #define TYPE_FLAG_PROTOTYPED (1 << 7)
 194
 195 /* This flag is used to indicate that processing for this type
 196    is incomplete.
 197
 198    (Mostly intended for HP platforms, where class methods, for
 199    instance, can be encountered before their classes in the debug
 200    info; the incomplete type has to be marked so that the class and
 201    the method can be assigned correct types.) */
 202
 203 #define TYPE_FLAG_INCOMPLETE (1 << 8)
 204
 205
 206 struct type
 207   {
 208
 209     /* Code for kind of type */
 210
 211     enum type_code code;
 212
 213     /* Name of this type, or NULL if none.
 214
 215        This is used for printing only, except by poorly designed C++ code.
 216        For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 217
 218     char *name;
 219
 220     /* Tag name for this type, or NULL if none.  This means that the
 221        name of the type consists of a keyword followed by the tag name.
 222        Which keyword is determined by the type code ("struct" for
 223        TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 224        with this feature.
 225
 226        This is used for printing only, except by poorly designed C++ code.
 227        For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 228        One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 229        the name to use to look for definitions in other files.  */
 230
 231     char *tag_name;
 232
 233     /* Length of storage for a value of this type.  Various places pass
 234        this to memcpy and such, meaning it must be in units of
 235        HOST_CHAR_BIT.  Various other places expect they can calculate
 236        addresses by adding it and such, meaning it must be in units of
 237        TARGET_CHAR_BIT.  For some DSP targets, in which HOST_CHAR_BIT
 238        will (presumably) be 8 and TARGET_CHAR_BIT will be (say) 32, this
 239        is a problem.  One fix would be to make this field in bits
 240        (requiring that it always be a multiple of HOST_CHAR_BIT and
 241        TARGET_CHAR_BIT)--the other choice would be to make it
 242        consistently in units of HOST_CHAR_BIT.  */
 243
 244     unsigned length;
 245
 246     /* FIXME, these should probably be restricted to a Fortran-specific
 247        field in some fashion.  */
 248 #define BOUND_CANNOT_BE_DETERMINED   5
 249 #define BOUND_BY_REF_ON_STACK        4
 250 #define BOUND_BY_VALUE_ON_STACK      3
 251 #define BOUND_BY_REF_IN_REG          2
 252 #define BOUND_BY_VALUE_IN_REG        1
 253 #define BOUND_SIMPLE                 0
 254     int upper_bound_type;
 255     int lower_bound_type;
 256
 257     /* Every type is now associated with a particular objfile, and the
 258        type is allocated on the type_obstack for that objfile.  One problem
 259        however, is that there are times when gdb allocates new types while
 260        it is not in the process of reading symbols from a particular objfile.
 261        Fortunately, these happen when the type being created is a derived
 262        type of an existing type, such as in lookup_pointer_type().  So
 263        we can just allocate the new type using the same objfile as the
 264        existing type, but to do this we need a backpointer to the objfile
 265        from the existing type.  Yes this is somewhat ugly, but without
 266        major overhaul of the internal type system, it can't be avoided
 267        for now. */
 268
 269     struct objfile *objfile;
 270
 271     /* For a pointer type, describes the type of object pointed to.
 272        For an array type, describes the type of the elements.
 273        For a function or method type, describes the type of the return value.
 274        For a range type, describes the type of the full range.
 275        For a complex type, describes the type of each coordinate.
 276        Unused otherwise.  */
 277
 278     struct type *target_type;
 279
 280     /* Type that is a pointer to this type.
 281        NULL if no such pointer-to type is known yet.
 282        The debugger may add the address of such a type
 283        if it has to construct one later.  */
 284
 285     struct type *pointer_type;
 286
 287     /* C++: also need a reference type.  */
 288
 289     struct type *reference_type;
 290
 291     /* C-v variant chain. This points to a type that
 292        differs from this one only in a const or volatile
 293        attribute (or both). The various c-v variants
 294        are chained together in a ring. */
 295     struct type *cv_type;
 296
 297     /* Flags about this type.  */
 298
 299     int flags;
 300
 301     /* Number of fields described for this type */
 302
 303     short nfields;
 304
 305     /* For structure and union types, a description of each field.
 306        For set and pascal array types, there is one "field",
 307        whose type is the domain type of the set or array.
 308        For range types, there are two "fields",
 309        the minimum and maximum values (both inclusive).
 310        For enum types, each possible value is described by one "field".
 311        For a function type, a "field" for each parameter type.
 312        For C++ classes, there is one field for each base class (if it is
 313        a derived class) plus one field for each class data member.  Member
 314        functions are recorded elsewhere.
 315
 316        Using a pointer to a separate array of fields
 317        allows all types to have the same size, which is useful
 318        because we can allocate the space for a type before
 319        we know what to put in it.  */
 320
 321     struct field
 322       {
 323
 324
 325
 326         union field_location
 327           {
 328             /* Position of this field, counting in bits from start of
 329                containing structure.
 330                For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 331                For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
 332                For a function type, this is the position in the argument list
 333                of this argument.
 334                For a range bound or enum value, this is the value itself. */
 335
 336             int bitpos;
 337
 338             /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
 339                is the location (in the target) of the static field.
 340                Otherwise, physname is the mangled label of the static field. */
 341
 342             CORE_ADDR physaddr;
 343             char *physname;
 344           }
 345         loc;
 346
 347         /* Size of this field, in bits, or zero if not packed.
 348            For an unpacked field, the field's type's length
 349            says how many bytes the field occupies.
 350            A value of -1 or -2 indicates a static field;  -1 means the location
 351            is specified by the label loc.physname;  -2 means that loc.physaddr
 352            specifies the actual address. */
 353
 354         int bitsize;
 355
 356         /* In a struct or union type, type of this field.
 357            In a function type, type of this argument.
 358            In an array type, the domain-type of the array.  */
 359
 360         struct type *type;
 361
 362         /* Name of field, value or argument.
 363            NULL for range bounds and array domains.  */
 364
 365         char *name;
 366
 367       }
 368      *fields;
 369
 370     /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
 371        is the base class which defined the virtual function table pointer.
 372
 373        For types that are pointer to member types (TYPE_CODE_MEMBER),
 374        VPTR_BASETYPE is the type that this pointer is a member of.
 375
 376        For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
 377        type that contains the method.
 378
 379        Unused otherwise.  */
 380
 381     struct type *vptr_basetype;
 382
 383     /* Field number of the virtual function table pointer in
 384        VPTR_BASETYPE.  If -1, we were unable to find the virtual
 385        function table pointer in initial symbol reading, and
 386        fill_in_vptr_fieldno should be called to find it if possible.
 387
 388        Unused if this type does not have virtual functions.  */
 389
 390     int vptr_fieldno;
 391
 392     /* Slot to point to additional language-specific fields of this type.  */
 393
 394     union type_specific
 395       {
 396
 397         /* ARG_TYPES is for TYPE_CODE_METHOD.
 398            Contains the type of each argument, ending with a void type
 399            after the last argument for normal member functions or a NULL
 400            pointer after the last argument for functions with variable
 401            arguments.  */
 402
 403         struct type **arg_types;
 404
 405         /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 406            cplus_struct_default, a default static instance of a struct
 407            cplus_struct_type. */
 408
 409         struct cplus_struct_type *cplus_stuff;
 410
 411       }
 412     type_specific;
 413   };
 414
 415 #define NULL_TYPE ((struct type *) 0)
 416
 417 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 418    nodes.  */
 419
 420 struct cplus_struct_type
 421   {
 422     /* Number of base classes this type derives from.  The baseclasses are
 423        stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 424        the struct type).  I think only the `type' field of such a field has
 425        any meaning.  */
 426
 427     short n_baseclasses;
 428
 429     /* Number of methods with unique names.  All overloaded methods with
 430        the same name count only once. */
 431
 432     short nfn_fields;
 433
 434     /* Number of methods described for this type, not including the
 435        methods that it derives from.  */
 436
 437     short nfn_fields_total;
 438
 439     /* The "declared_type" field contains a code saying how the
 440        user really declared this type, e.g., "class s", "union s",
 441        "struct s".
 442        The 3 above things come out from the C++ compiler looking like classes,
 443        but we keep track of the real declaration so we can give
 444        the correct information on "ptype". (Note: TEMPLATE may not
 445        belong in this list...)  */
 446
 447 #define DECLARED_TYPE_CLASS 0
 448 #define DECLARED_TYPE_UNION 1
 449 #define DECLARED_TYPE_STRUCT 2
 450 #define DECLARED_TYPE_TEMPLATE 3
 451     short declared_type;        /* One of the above codes */
 452
 453     /* For derived classes, the number of base classes is given by n_baseclasses
 454        and virtual_field_bits is a bit vector containing one bit per base class.
 455        If the base class is virtual, the corresponding bit will be set.
 456        I.E, given:
 457
 458        class A{};
 459        class B{};
 460        class C : public B, public virtual A {};
 461
 462        B is a baseclass of C; A is a virtual baseclass for C.
 463        This is a C++ 2.0 language feature. */
 464
 465     B_TYPE *virtual_field_bits;
 466
 467     /* For classes with private fields, the number of fields is given by
 468        nfields and private_field_bits is a bit vector containing one bit
 469        per field.
 470        If the field is private, the corresponding bit will be set. */
 471
 472     B_TYPE *private_field_bits;
 473
 474     /* For classes with protected fields, the number of fields is given by
 475        nfields and protected_field_bits is a bit vector containing one bit
 476        per field.
 477        If the field is private, the corresponding bit will be set. */
 478
 479     B_TYPE *protected_field_bits;
 480
 481     /* for classes with fields to be ignored, either this is optimized out
 482        or this field has length 0 */
 483
 484     B_TYPE *ignore_field_bits;
 485
 486     /* For classes, structures, and unions, a description of each field,
 487        which consists of an overloaded name, followed by the types of
 488        arguments that the method expects, and then the name after it
 489        has been renamed to make it distinct.
 490
 491        fn_fieldlists points to an array of nfn_fields of these. */
 492
 493     struct fn_fieldlist
 494       {
 495
 496         /* The overloaded name.  */
 497
 498         char *name;
 499
 500         /* The number of methods with this name.  */
 501
 502         int length;
 503
 504         /* The list of methods.  */
 505
 506         struct fn_field
 507           {
 508
 509             /* If is_stub is clear, this is the mangled name which we can
 510                look up to find the address of the method (FIXME: it would
 511                be cleaner to have a pointer to the struct symbol here
 512                instead).  */
 513
 514             /* If is_stub is set, this is the portion of the mangled
 515                name which specifies the arguments.  For example, "ii",
 516                if there are two int arguments, or "" if there are no
 517                arguments.  See gdb_mangle_name for the conversion from this
 518                format to the one used if is_stub is clear.  */
 519
 520             char *physname;
 521
 522             /* The function type for the method.
 523                (This comment used to say "The return value of the method",
 524                but that's wrong. The function type
 525                is expected here, i.e. something with TYPE_CODE_FUNC,
 526                and *not* the return-value type). */
 527
 528             struct type *type;
 529
 530             /* The argument list.  Only valid if is_stub is clear.  Contains
 531                the type of each argument, including `this', and ending with
 532                a NULL pointer after the last argument.  Should not contain
 533                a `this' pointer for static member functions.  */
 534
 535             struct type **args;
 536
 537             /* For virtual functions.
 538                First baseclass that defines this virtual function.   */
 539
 540             struct type *fcontext;
 541
 542             /* Attributes. */
 543
 544             unsigned int is_const:1;
 545             unsigned int is_volatile:1;
 546             unsigned int is_private:1;
 547             unsigned int is_protected:1;
 548             unsigned int is_public:1;
 549             unsigned int is_abstract:1;
 550             unsigned int is_static:1;
 551             unsigned int is_final:1;
 552             unsigned int is_synchronized:1;
 553             unsigned int is_native:1;
 554
 555             /* A stub method only has some fields valid (but they are enough
 556                to reconstruct the rest of the fields).  */
 557             unsigned int is_stub:1;
 558
 559             /* C++ method that is inlined */
 560             unsigned int is_inlined:1;
 561
 562             /* Unused.  */
 563             unsigned int dummy:4;
 564
 565             /* Index into that baseclass's virtual function table,
 566                minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 567
 568             unsigned int voffset:16;
 569
 570 #define VOFFSET_STATIC 1
 571
 572           }
 573          *fn_fields;
 574
 575       }
 576      *fn_fieldlists;
 577
 578     /* If this "struct type" describes a template, then it
 579      * has arguments. "template_args" points to an array of
 580      * template arg descriptors, of length "ntemplate_args".
 581      * The only real information in each of these template arg descriptors
 582      * is a name. "type" will typically just point to a "struct type" with
 583      * the placeholder TYPE_CODE_TEMPLATE_ARG type.
 584      */
 585     short ntemplate_args;
 586     struct template_arg
 587       {
 588         char *name;
 589         struct type *type;
 590       }
 591      *template_args;
 592
 593     /* If this "struct type" describes a template, it has a list
 594      * of instantiations. "instantiations" is a pointer to an array
 595      * of type's, one representing each instantiation. There
 596      * are "ninstantiations" elements in this array.
 597      */
 598     short ninstantiations;
 599     struct type **instantiations;
 600
 601     /* The following points to information relevant to the runtime model
 602      * of the compiler.
 603      * Currently being used only for HP's ANSI C++ compiler.
 604      * (This type may have to be changed/enhanced for other compilers.)
 605      *
 606      * RUNTIME_PTR is NULL if there is no runtime information (currently
 607      * this means the type was not compiled by HP aCC).
 608      *
 609      * Fields in structure pointed to:
 610      * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
 611      *
 612      * ->PRIMARY_BASE points to the first non-virtual base class that has
 613      * a virtual table.
 614      *
 615      * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
 616      * point to the type information for all virtual bases among this type's
 617      * ancestors.
 618      */
 619     struct runtime_info
 620       {
 621         short has_vtable;
 622         struct type *primary_base;
 623         struct type **virtual_base_list;
 624       }
 625      *runtime_ptr;
 626
 627     /* Pointer to information about enclosing scope, if this is a
 628      * local type.  If it is not a local type, this is NULL
 629      */
 630     struct local_type_info
 631       {
 632         char *file;
 633         int line;
 634       }
 635      *localtype_ptr;
 636   };
 637
 638 /* Struct used in computing virtual base list */
 639 struct vbase
 640   {
 641     struct type *vbasetype;     /* pointer to virtual base */
 642     struct vbase *next;         /* next in chain */
 643   };
 644
 645 /* Struct used for ranking a function for overload resolution */
 646 struct badness_vector
 647   {
 648     int length;
 649     int *rank;
 650   };
 651
 652 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 653    this shared static structure. */
 654
 655 extern const struct cplus_struct_type cplus_struct_default;
 656
 657 extern void
 658 allocate_cplus_struct_type PARAMS ((struct type *));
 659
 660 #define INIT_CPLUS_SPECIFIC(type) \
 661   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 662 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 663 #define HAVE_CPLUS_STRUCT(type) \
 664   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 665
 666 #define TYPE_NAME(thistype) (thistype)->name
 667 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 668 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 669 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 670 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 671 #define TYPE_CV_TYPE(thistype) (thistype)->cv_type
 672 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
 673    But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
 674    so you only have to call check_typedef once.  Since allocate_value
 675    calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe.  */
 676 #define TYPE_LENGTH(thistype) (thistype)->length
 677 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 678 #define TYPE_FLAGS(thistype) (thistype)->flags
 679 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
 680 #define TYPE_NOSIGN(thistype) ((thistype)->flags & TYPE_FLAG_NOSIGN)
 681 #define TYPE_CONST(thistype) ((thistype)->flags & TYPE_FLAG_CONST)
 682 #define TYPE_VOLATILE(thistype) ((thistype)->flags & TYPE_FLAG_VOLATILE)
 683 #define TYPE_INCOMPLETE(thistype) ((thistype)->flags & TYPE_FLAG_INCOMPLETE)
 684 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
 685    type, you need to do TYPE_CODE (check_type (this_type)). */
 686 #define TYPE_CODE(thistype) (thistype)->code
 687 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 688 #define TYPE_FIELDS(thistype) (thistype)->fields
 689 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
 690 #define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
 691
 692 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
 693 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 694 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 695
 696 /* Moto-specific stuff for FORTRAN arrays */
 697
 698 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
 699 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
 700
 701 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
 702    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
 703
 704 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
 705    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
 706
 707 /* C++ */
 708
 709 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 710 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 711 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 712 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 713 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 714 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 715 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
 716 #define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
 717 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
 718 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 719 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 720 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 721 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 722 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 723 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 724 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
 725 #define BASETYPE_VIA_PUBLIC(thistype, index) \
 726   ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
 727
 728 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 729   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 730     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
 731
 732 #define FIELD_TYPE(thisfld) ((thisfld).type)
 733 #define FIELD_NAME(thisfld) ((thisfld).name)
 734 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
 735 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
 736 #define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
 737 #define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
 738 #define SET_FIELD_PHYSNAME(thisfld, name) \
 739   ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
 740 #define SET_FIELD_PHYSADDR(thisfld, name) \
 741   ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
 742 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 743 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
 744 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
 745 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
 746 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
 747 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
 748 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
 749 #define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
 750
 751 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 752   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 753 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 754   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 755 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 756   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 757 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 758   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 759 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 760   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 761 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 762   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 763 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 764   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 765 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 766   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 767 #define TYPE_FIELD_PRIVATE(thistype, n) \
 768   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 769     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 770 #define TYPE_FIELD_PROTECTED(thistype, n) \
 771   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 772     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 773 #define TYPE_FIELD_IGNORE(thistype, n) \
 774   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 775     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 776 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 777   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 778     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
 779
 780 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitsize < 0)
 781 #define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) ((thistype)->fields[n].bitsize == -2)
 782 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
 783 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
 784
 785 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 786 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 787 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 788 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 789 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 790
 791 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 792 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 793 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 794 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 795 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 796 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 797 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 798 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 799 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
 800 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
 801 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
 802 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
 803 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
 804 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
 805 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 806 #define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
 807 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 808 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 809 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 810 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 811
 812 #define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
 813 #define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
 814 #define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
 815 #define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
 816 #define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
 817
 818 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
 819 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
 820 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
 821
 822 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) ||        \
 823                                    (TYPE_CODE (thistype) == TYPE_CODE_UNION))        && \
 824                                   (TYPE_NFIELDS (thistype) == 0)                     && \
 825                                   (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
 826
 827
 828
 829 /* Implicit sizes */
 830 extern struct type *builtin_type_void;
 831 extern struct type *builtin_type_char;
 832 extern struct type *builtin_type_short;
 833 extern struct type *builtin_type_int;
 834 extern struct type *builtin_type_long;
 835 extern struct type *builtin_type_signed_char;
 836 extern struct type *builtin_type_unsigned_char;
 837 extern struct type *builtin_type_unsigned_short;
 838 extern struct type *builtin_type_unsigned_int;
 839 extern struct type *builtin_type_unsigned_long;
 840 extern struct type *builtin_type_float;
 841 extern struct type *builtin_type_double;
 842 extern struct type *builtin_type_long_double;
 843 extern struct type *builtin_type_complex;
 844 extern struct type *builtin_type_double_complex;
 845 extern struct type *builtin_type_string;
 846 extern struct type *builtin_type_bool;
 847
 848 /* Address/pointer types: */
 849 /* (C) Language pointer type. Some target platforms use an implicitly
 850    {sign,zero} -extended 32 bit C language pointer on a 64 bit ISA. */
 851 extern struct type *builtin_type_ptr;
 852 /* The target CPU's address type.  This is the ISA address size. */
 853 extern struct type *builtin_type_CORE_ADDR;
 854 /* The symbol table address type.  Some object file formats have a 32
 855    bit address type even though the TARGET has a 64 bit pointer type
 856    (cf MIPS). */
 857 extern struct type *builtin_type_bfd_vma;
 858
 859 /* Explicit sizes - see C9X <intypes.h> for naming scheme */
 860 extern struct type *builtin_type_int8;
 861 extern struct type *builtin_type_uint8;
 862 extern struct type *builtin_type_int16;
 863 extern struct type *builtin_type_uint16;
 864 extern struct type *builtin_type_int32;
 865 extern struct type *builtin_type_uint32;
 866 extern struct type *builtin_type_int64;
 867 extern struct type *builtin_type_uint64;
 868
 869 /* SIMD types.  We inherit these names from GCC.  */
 870 extern struct type *builtin_type_v4sf;
 871 extern struct type *builtin_type_v4si;
 872 extern struct type *builtin_type_v8qi;
 873 extern struct type *builtin_type_v4hi;
 874 extern struct type *builtin_type_v2si;
 875
 876 /* We use this for the '/c' print format, because builtin_type_char is
 877    just a one-byte integral type, which languages less laid back than
 878    C will print as ... well, a one-byte integral type.  */
 879 extern struct type *builtin_type_true_char;
 880
 881 /* This type represents a type that was unrecognized in symbol
 882    read-in.  */
 883
 884 extern struct type *builtin_type_error;
 885
 886 extern struct type *builtin_type_long_long;
 887 extern struct type *builtin_type_unsigned_long_long;
 888
 889 /* Modula-2 types */
 890
 891 extern struct type *builtin_type_m2_char;
 892 extern struct type *builtin_type_m2_int;
 893 extern struct type *builtin_type_m2_card;
 894 extern struct type *builtin_type_m2_real;
 895 extern struct type *builtin_type_m2_bool;
 896
 897 /* Chill types */
 898
 899 extern struct type *builtin_type_chill_bool;
 900 extern struct type *builtin_type_chill_char;
 901 extern struct type *builtin_type_chill_long;
 902 extern struct type *builtin_type_chill_ulong;
 903 extern struct type *builtin_type_chill_real;
 904
 905 /* Fortran (F77) types */
 906
 907 extern struct type *builtin_type_f_character;
 908 extern struct type *builtin_type_f_integer;
 909 extern struct type *builtin_type_f_logical;
 910 extern struct type *builtin_type_f_logical_s1;
 911 extern struct type *builtin_type_f_logical_s2;
 912 extern struct type *builtin_type_f_integer;
 913 extern struct type *builtin_type_f_integer_s2;
 914 extern struct type *builtin_type_f_real;
 915 extern struct type *builtin_type_f_real_s8;
 916 extern struct type *builtin_type_f_real_s16;
 917 extern struct type *builtin_type_f_complex_s8;
 918 extern struct type *builtin_type_f_complex_s16;
 919 extern struct type *builtin_type_f_complex_s32;
 920 extern struct type *builtin_type_f_void;
 921
 922 /* RTTI for C++ */
 923 /* extern struct type *builtin_type_cxx_typeinfo; */
 924
 925 /* Maximum and minimum values of built-in types */
 926
 927 #define MAX_OF_TYPE(t)  \
 928    TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
 929     : MAX_OF_SIZE(TYPE_LENGTH(t))
 930
 931 #define MIN_OF_TYPE(t)  \
 932    TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
 933     : MIN_OF_SIZE(TYPE_LENGTH(t))
 934
 935 /* Allocate space for storing data associated with a particular type.
 936    We ensure that the space is allocated using the same mechanism that
 937    was used to allocate the space for the type structure itself.  I.E.
 938    if the type is on an objfile's type_obstack, then the space for data
 939    associated with that type will also be allocated on the type_obstack.
 940    If the type is not associated with any particular objfile (such as
 941    builtin types), then the data space will be allocated with xmalloc,
 942    the same as for the type structure. */
 943
 944 #define TYPE_ALLOC(t,size)  \
 945    (TYPE_OBJFILE (t) != NULL  \
 946     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
 947     : xmalloc (size))
 948
 949 extern struct type *
 950   alloc_type PARAMS ((struct objfile *));
 951
 952 extern struct type *
 953   init_type PARAMS ((enum type_code, int, int, char *, struct objfile *));
 954
 955 extern struct type *
 956   lookup_reference_type PARAMS ((struct type *));
 957
 958 extern struct type *
 959   make_reference_type PARAMS ((struct type *, struct type **));
 960
 961 extern struct type *
 962   make_cv_type PARAMS ((int, int, struct type *, struct type **));
 963
 964 extern struct type *
 965   lookup_member_type PARAMS ((struct type *, struct type *));
 966
 967 extern void
 968 smash_to_method_type PARAMS ((struct type *, struct type *, struct type *,
 969                               struct type **));
 970
 971 extern void
 972 smash_to_member_type PARAMS ((struct type *, struct type *, struct type *));
 973
 974 extern struct type *
 975   allocate_stub_method PARAMS ((struct type *));
 976
 977 extern char *
 978   type_name_no_tag PARAMS ((const struct type *));
 979
 980 extern struct type *
 981   lookup_struct_elt_type PARAMS ((struct type *, char *, int));
 982
 983 extern struct type *
 984   make_pointer_type PARAMS ((struct type *, struct type **));
 985
 986 extern struct type *
 987   lookup_pointer_type PARAMS ((struct type *));
 988
 989 extern struct type *
 990   make_function_type PARAMS ((struct type *, struct type **));
 991
 992 extern struct type *
 993   lookup_function_type PARAMS ((struct type *));
 994
 995 extern struct type *
 996   create_range_type PARAMS ((struct type *, struct type *, int, int));
 997
 998 extern struct type *
 999   create_array_type PARAMS ((struct type *, struct type *, struct type *));
1000
1001 extern struct type *
1002   create_string_type PARAMS ((struct type *, struct type *));
1003
1004 extern struct type *create_set_type PARAMS ((struct type *, struct type *));
1005
1006 extern int chill_varying_type PARAMS ((struct type *));
1007
1008 extern struct type *
1009   lookup_unsigned_typename PARAMS ((char *));
1010
1011 extern struct type *
1012   lookup_signed_typename PARAMS ((char *));
1013
1014 extern struct type *
1015   check_typedef PARAMS ((struct type *));
1016
1017 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1018
1019 extern void
1020 check_stub_method PARAMS ((struct type *, int, int));
1021
1022 extern struct type *
1023   lookup_primitive_typename PARAMS ((char *));
1024
1025 extern char *
1026   gdb_mangle_name PARAMS ((struct type *, int, int));
1027
1028 extern struct type *
1029   builtin_type PARAMS ((char **));
1030
1031 extern struct type *
1032   lookup_typename PARAMS ((char *, struct block *, int));
1033
1034 extern struct type *
1035   lookup_template_type PARAMS ((char *, struct type *, struct block *));
1036
1037 extern struct type *
1038   lookup_fundamental_type PARAMS ((struct objfile *, int));
1039
1040 extern void
1041 fill_in_vptr_fieldno PARAMS ((struct type *));
1042
1043 extern int get_destructor_fn_field PARAMS ((struct type *, int *, int *));
1044
1045 extern int get_discrete_bounds PARAMS ((struct type *, LONGEST *, LONGEST *));
1046
1047 extern int
1048 is_ancestor PARAMS ((struct type *, struct type *));
1049
1050 extern int
1051 has_vtable PARAMS ((struct type *));
1052
1053 extern struct type *
1054   primary_base_class PARAMS ((struct type *));
1055
1056 extern struct type **
1057   virtual_base_list PARAMS ((struct type *));
1058
1059 extern int
1060 virtual_base_list_length PARAMS ((struct type *));
1061 extern int
1062 virtual_base_list_length_skip_primaries PARAMS ((struct type *));
1063
1064 extern int
1065 virtual_base_index PARAMS ((struct type *, struct type *));
1066 extern int
1067 virtual_base_index_skip_primaries PARAMS ((struct type *, struct type *));
1068
1069
1070 extern int
1071 class_index_in_primary_list PARAMS ((struct type *));
1072
1073 extern int
1074 count_virtual_fns PARAMS ((struct type *));
1075
1076 /* Constants for HP/Taligent ANSI C++ runtime model */
1077
1078 /* Where virtual function entries begin in the
1079  * virtual table, in the non-RRBC vtable format.
1080  * First 4 are the metavtable pointer, top offset,
1081  * typeinfo pointer, and dup base info pointer */
1082 #define HP_ACC_VFUNC_START        4
1083
1084 /* (Negative) Offset where virtual base offset entries begin
1085  * in the virtual table. Skips over metavtable pointer and
1086  * the self-offset entry.
1087  * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1088  * appear before the address point of the vtable (the slot
1089  * pointed to by the object's vtable pointer), i.e. at lower
1090  * addresses than the vtable pointer. */
1091 #define HP_ACC_VBASE_START        2
1092
1093 /* (Positive) Offset where the pointer to the typeinfo
1094  * object is present in the virtual table */
1095 #define HP_ACC_TYPEINFO_OFFSET    2
1096
1097 /* (Positive) Offset where the ``top offset'' entry of
1098  * the virtual table is */
1099 #define HP_ACC_TOP_OFFSET_OFFSET  1
1100
1101 /* Overload resolution */
1102
1103 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1104
1105 /* Badness if parameter list length doesn't match arg list length */
1106 #define LENGTH_MISMATCH_BADNESS      100
1107 /* Dummy badness value for nonexistent parameter positions */
1108 #define TOO_FEW_PARAMS_BADNESS       100
1109 /* Badness if no conversion among types */
1110 #define INCOMPATIBLE_TYPE_BADNESS    100
1111 /* Badness of coercing large integer to smaller size */
1112 #define INTEGER_COERCION_BADNESS     100
1113 /* Badness of coercing large floating type to smaller size */
1114 #define FLOAT_COERCION_BADNESS       100
1115
1116 /* Badness of integral promotion */
1117 #define INTEGER_PROMOTION_BADNESS      1
1118 /* Badness of floating promotion */
1119 #define FLOAT_PROMOTION_BADNESS        1
1120 /* Badness of integral conversion */
1121 #define INTEGER_CONVERSION_BADNESS     2
1122 /* Badness of floating conversion */
1123 #define FLOAT_CONVERSION_BADNESS       2
1124 /* Badness of integer<->floating conversions */
1125 #define INT_FLOAT_CONVERSION_BADNESS   2
1126 /* Badness of converting to a boolean */
1127 #define BOOLEAN_CONVERSION_BADNESS     2
1128 /* Badness of pointer conversion */
1129 #define POINTER_CONVERSION_BADNESS     2
1130 /* Badness of conversion of pointer to void pointer */
1131 #define VOID_PTR_CONVERSION_BADNESS    2
1132 /* Badness of converting derived to base class */
1133 #define BASE_CONVERSION_BADNESS        2
1134 /* Badness of converting from non-reference to reference */
1135 #define REFERENCE_CONVERSION_BADNESS   2
1136
1137 /* Non-standard conversions allowed by the debugger */
1138 /* Converting a pointer to an int is usually OK */
1139 #define NS_POINTER_CONVERSION_BADNESS 10
1140
1141
1142 extern int
1143 compare_badness PARAMS ((struct badness_vector *, struct badness_vector *));
1144
1145 extern struct badness_vector *
1146   rank_function PARAMS ((struct type **, int, struct type **, int));
1147
1148 extern int
1149 rank_one_type PARAMS ((struct type *, struct type *));
1150
1151 extern void recursive_dump_type PARAMS ((struct type *, int));
1152
1153 /* printcmd.c */
1154
1155 extern void print_scalar_formatted (char *, struct type *, int, int,
1156                                     struct ui_file *);
1157
1158 extern int can_dereference PARAMS ((struct type *));
1159
1160 extern int is_integral_type PARAMS ((struct type *));
1161
1162 extern void maintenance_print_type PARAMS ((char *, int));
1163
1164 /* typeprint.c */
1165
1166 extern void print_type_scalar (struct type *, LONGEST, struct ui_file *);
1167
1168 #endif /* GDBTYPES_H */