gdb/gdbtypes.h

   1 /* Internal type definitions for GDB.
   2    Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
   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 /* Forward declarations for prototypes.  */
  27 struct block;
  28
  29 /* Codes for `fundamental types'.  This is a monstrosity based on the
  30    bogus notion that there are certain compiler-independent
  31    `fundamental types'.  None of these is well-defined (how big is
  32    FT_SHORT?  Does it depend on the language?  How does the
  33    language-specific code know which type to correlate to FT_SHORT?)  */
  34
  35 #define FT_VOID                 0
  36 #define FT_BOOLEAN              1
  37 #define FT_CHAR                 2       /* we use this for not-unsigned C/C++ chars */
  38 #define FT_SIGNED_CHAR          3       /* we use this for C++ signed chars */
  39 #define FT_UNSIGNED_CHAR        4       /* we use this for C/C++ unsigned chars */
  40 #define FT_SHORT                5
  41 #define FT_SIGNED_SHORT         6
  42 #define FT_UNSIGNED_SHORT       7
  43 #define FT_INTEGER              8
  44 #define FT_SIGNED_INTEGER       9
  45 #define FT_UNSIGNED_INTEGER     10
  46 #define FT_LONG                 11
  47 #define FT_SIGNED_LONG          12
  48 #define FT_UNSIGNED_LONG        13
  49 #define FT_LONG_LONG            14
  50 #define FT_SIGNED_LONG_LONG     15
  51 #define FT_UNSIGNED_LONG_LONG   16
  52 #define FT_FLOAT                17
  53 #define FT_DBL_PREC_FLOAT       18
  54 #define FT_EXT_PREC_FLOAT       19
  55 #define FT_COMPLEX              20
  56 #define FT_DBL_PREC_COMPLEX     21
  57 #define FT_EXT_PREC_COMPLEX     22
  58 #define FT_STRING               23
  59 #define FT_FIXED_DECIMAL        24
  60 #define FT_FLOAT_DECIMAL        25
  61 #define FT_BYTE                 26
  62 #define FT_UNSIGNED_BYTE        27
  63 #define FT_TEMPLATE_ARG         28
  64
  65 #define FT_NUM_MEMBERS          29      /* Highest FT_* above, plus one. */
  66
  67 /* Some macros for char-based bitfields.  */
  68
  69 #define B_SET(a,x)      ((a)[(x)>>3] |= (1 << ((x)&7)))
  70 #define B_CLR(a,x)      ((a)[(x)>>3] &= ~(1 << ((x)&7)))
  71 #define B_TST(a,x)      ((a)[(x)>>3] & (1 << ((x)&7)))
  72 #define B_TYPE          unsigned char
  73 #define B_BYTES(x)      ( 1 + ((x)>>3) )
  74 #define B_CLRALL(a,x)   memset ((a), 0, B_BYTES(x))
  75
  76 /* Different kinds of data types are distinguished by the `code' field.  */
  77
  78 enum type_code
  79   {
  80     TYPE_CODE_UNDEF,            /* Not used; catches errors */
  81     TYPE_CODE_PTR,              /* Pointer type */
  82     TYPE_CODE_ARRAY,            /* Array type with lower & upper bounds. */
  83     TYPE_CODE_STRUCT,           /* C struct or Pascal record */
  84     TYPE_CODE_UNION,            /* C union or Pascal variant part */
  85     TYPE_CODE_ENUM,             /* Enumeration type */
  86     TYPE_CODE_FUNC,             /* Function type */
  87     TYPE_CODE_INT,              /* Integer type */
  88
  89     /* Floating type.  This is *NOT* a complex type.  Beware, there are parts
  90        of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  91     TYPE_CODE_FLT,
  92
  93     /* Void type.  The length field specifies the length (probably always
  94        one) which is used in pointer arithmetic involving pointers to
  95        this type, but actually dereferencing such a pointer is invalid;
  96        a void type has no length and no actual representation in memory
  97        or registers.  A pointer to a void type is a generic pointer.  */
  98     TYPE_CODE_VOID,
  99
 100     TYPE_CODE_SET,              /* Pascal sets */
 101     TYPE_CODE_RANGE,            /* Range (integers within spec'd bounds) */
 102
 103     /* A string type which is like an array of character but prints
 104        differently (at least for CHILL).  It does not contain a length
 105        field as Pascal strings (for many Pascals, anyway) do; if we want
 106        to deal with such strings, we should use a new type code.  */
 107     TYPE_CODE_STRING,
 108
 109     /* String of bits; like TYPE_CODE_SET but prints differently (at least
 110        for CHILL).  */
 111     TYPE_CODE_BITSTRING,
 112
 113     /* Unknown type.  The length field is valid if we were able to
 114        deduce that much about the type, or 0 if we don't even know that.  */
 115     TYPE_CODE_ERROR,
 116
 117     /* C++ */
 118     TYPE_CODE_MEMBER,           /* Member type */
 119     TYPE_CODE_METHOD,           /* Method type */
 120     TYPE_CODE_REF,              /* C++ Reference types */
 121
 122     TYPE_CODE_CHAR,             /* *real* character type */
 123
 124     /* Boolean type.  0 is false, 1 is true, and other values are non-boolean
 125        (e.g. FORTRAN "logical" used as unsigned int).  */
 126     TYPE_CODE_BOOL,
 127
 128     /* Fortran */
 129     TYPE_CODE_COMPLEX,          /* Complex float */
 130
 131     TYPE_CODE_TYPEDEF,
 132     TYPE_CODE_TEMPLATE,         /* C++ template */
 133     TYPE_CODE_TEMPLATE_ARG      /* C++ template arg */
 134
 135   };
 136
 137 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 138    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 139    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 140    so that we can print "class" or "struct" depending on what the debug
 141    info said.  It's not clear we should bother.  */
 142
 143 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 144
 145 /* Some bits for the type's flags word, and macros to test them. */
 146
 147 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 148    type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
 149
 150 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 151 #define TYPE_UNSIGNED(t)        ((t)->flags & TYPE_FLAG_UNSIGNED)
 152
 153 /* No sign for this type.  In C++, "char", "signed char", and "unsigned
 154    char" are distinct types; so we need an extra flag to indicate the
 155    absence of a sign! */
 156
 157 #define TYPE_FLAG_NOSIGN        (1 << 1)
 158 #define TYPE_NOSIGN(t)          ((t)->flags & TYPE_FLAG_NOSIGN)
 159
 160 /* This appears in a type's flags word if it is a stub type (e.g., if
 161    someone referenced a type that wasn't defined in a source file
 162    via (struct sir_not_appearing_in_this_film *)).  */
 163
 164 #define TYPE_FLAG_STUB          (1 << 2)
 165 #define TYPE_STUB(t)            ((t)->flags & TYPE_FLAG_STUB)
 166
 167 /* The target type of this type is a stub type, and this type needs to
 168    be updated if it gets un-stubbed in check_typedef.
 169    Used for arrays and ranges, in which TYPE_LENGTH of the array/range
 170    gets set based on the TYPE_LENGTH of the target type.
 171    Also, set for TYPE_CODE_TYPEDEF. */
 172
 173 #define TYPE_FLAG_TARGET_STUB   (1 << 3)
 174 #define TYPE_TARGET_STUB(t)     ((t)->flags & TYPE_FLAG_TARGET_STUB)
 175
 176 /* Static type.  If this is set, the corresponding type had
 177  * a static modifier.
 178  * Note: This may be unnecessary, since static data members
 179  * are indicated by other means (bitpos == -1)
 180  */
 181
 182 #define TYPE_FLAG_STATIC        (1 << 4)
 183 #define TYPE_STATIC(t)          ((t)->flags & TYPE_FLAG_STATIC)
 184
 185 /* Constant type.  If this is set, the corresponding type has a
 186  * const modifier.
 187  */
 188
 189 #define TYPE_FLAG_CONST         (1 << 5)
 190 #define TYPE_CONST(t)           ((t)->flags & TYPE_FLAG_CONST)
 191
 192 /* Volatile type.  If this is set, the corresponding type has a
 193  * volatile modifier.
 194  */
 195
 196 #define TYPE_FLAG_VOLATILE      (1 << 6)
 197 #define TYPE_VOLATILE(t)        ((t)->flags & TYPE_FLAG_VOLATILE)
 198
 199
 200 /* This is a function type which appears to have a prototype.  We need this
 201    for function calls in order to tell us if it's necessary to coerce the args,
 202    or to just do the standard conversions.  This is used with a short field. */
 203
 204 #define TYPE_FLAG_PROTOTYPED    (1 << 7)
 205 #define TYPE_PROTOTYPED(t)      ((t)->flags & TYPE_FLAG_PROTOTYPED)
 206
 207 /* This flag is used to indicate that processing for this type
 208    is incomplete.
 209
 210    (Mostly intended for HP platforms, where class methods, for
 211    instance, can be encountered before their classes in the debug
 212    info; the incomplete type has to be marked so that the class and
 213    the method can be assigned correct types.) */
 214
 215 #define TYPE_FLAG_INCOMPLETE    (1 << 8)
 216 #define TYPE_INCOMPLETE(t)      ((t)->flags & TYPE_FLAG_INCOMPLETE)
 217
 218 /* Instruction-space delimited type.  This is for Harvard architectures
 219    which have separate instruction and data address spaces (and perhaps
 220    others).
 221
 222    GDB usually defines a flat address space that is a superset of the
 223    architecture's two (or more) address spaces, but this is an extension
 224    of the architecture's model.
 225
 226    If TYPE_FLAG_INST is set, an object of the corresponding type
 227    resides in instruction memory, even if its address (in the extended
 228    flat address space) does not reflect this.
 229
 230    Similarly, if TYPE_FLAG_DATA is set, then an object of the
 231    corresponding type resides in the data memory space, even if
 232    this is not indicated by its (flat address space) address.
 233
 234    If neither flag is set, the default space for functions / methods
 235    is instruction space, and for data objects is data memory.  */
 236
 237 #define TYPE_FLAG_CODE_SPACE    (1 << 9)
 238 #define TYPE_CODE_SPACE(t)      ((t)->flags & TYPE_FLAG_CODE_SPACE)
 239
 240 #define TYPE_FLAG_DATA_SPACE    (1 << 10)
 241 #define TYPE_DATA_SPACE(t)      ((t)->flags & TYPE_FLAG_DATA_SPACE)
 242
 243 /* FIXME: Kludge to mark a varargs function type for C++ member
 244    function argument processing.  Currently only used in dwarf2read.c,
 245    but put it here so we won't accidentally overload the bit with
 246    another flag.  */
 247
 248 #define TYPE_FLAG_VARARGS       (1 << 11)
 249 #define TYPE_VARARGS(t)         ((t)->flags & TYPE_FLAG_VARARGS)
 250
 251 struct type
 252   {
 253
 254     /* Code for kind of type */
 255
 256     enum type_code code;
 257
 258     /* Name of this type, or NULL if none.
 259
 260        This is used for printing only, except by poorly designed C++ code.
 261        For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 262
 263     char *name;
 264
 265     /* Tag name for this type, or NULL if none.  This means that the
 266        name of the type consists of a keyword followed by the tag name.
 267        Which keyword is determined by the type code ("struct" for
 268        TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 269        with this feature.
 270
 271        This is used for printing only, except by poorly designed C++ code.
 272        For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 273        One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 274        the name to use to look for definitions in other files.  */
 275
 276     char *tag_name;
 277
 278     /* Length of storage for a value of this type.  This is what
 279        sizeof(type) would return; use it for address arithmetic,
 280        memory reads and writes, etc.  This size includes padding.  For
 281        example, an i386 extended-precision floating point value really
 282        only occupies ten bytes, but most ABI's declare its size to be
 283        12 bytes, to preserve alignment.  A `struct type' representing
 284        such a floating-point type would have a `length' value of 12,
 285        even though the last two bytes are unused.
 286
 287        There's a bit of a host/target mess here, if you're concerned
 288        about machines whose bytes aren't eight bits long, or who don't
 289        have byte-addressed memory.  Various places pass this to memcpy
 290        and such, meaning it must be in units of host bytes.  Various
 291        other places expect they can calculate addresses by adding it
 292        and such, meaning it must be in units of target bytes.  For
 293        some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
 294        and TARGET_CHAR_BIT will be (say) 32, this is a problem.
 295
 296        One fix would be to make this field in bits (requiring that it
 297        always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
 298        the other choice would be to make it consistently in units of
 299        HOST_CHAR_BIT.  However, this would still fail to address
 300        machines based on a ternary or decimal representation.  */
 301     unsigned length;
 302
 303     /* FIXME, these should probably be restricted to a Fortran-specific
 304        field in some fashion.  */
 305 #define BOUND_CANNOT_BE_DETERMINED   5
 306 #define BOUND_BY_REF_ON_STACK        4
 307 #define BOUND_BY_VALUE_ON_STACK      3
 308 #define BOUND_BY_REF_IN_REG          2
 309 #define BOUND_BY_VALUE_IN_REG        1
 310 #define BOUND_SIMPLE                 0
 311     int upper_bound_type;
 312     int lower_bound_type;
 313
 314     /* Every type is now associated with a particular objfile, and the
 315        type is allocated on the type_obstack for that objfile.  One problem
 316        however, is that there are times when gdb allocates new types while
 317        it is not in the process of reading symbols from a particular objfile.
 318        Fortunately, these happen when the type being created is a derived
 319        type of an existing type, such as in lookup_pointer_type().  So
 320        we can just allocate the new type using the same objfile as the
 321        existing type, but to do this we need a backpointer to the objfile
 322        from the existing type.  Yes this is somewhat ugly, but without
 323        major overhaul of the internal type system, it can't be avoided
 324        for now. */
 325
 326     struct objfile *objfile;
 327
 328     /* For a pointer type, describes the type of object pointed to.
 329        For an array type, describes the type of the elements.
 330        For a function or method type, describes the type of the return value.
 331        For a range type, describes the type of the full range.
 332        For a complex type, describes the type of each coordinate.
 333        Unused otherwise.  */
 334
 335     struct type *target_type;
 336
 337     /* Type that is a pointer to this type.
 338        NULL if no such pointer-to type is known yet.
 339        The debugger may add the address of such a type
 340        if it has to construct one later.  */
 341
 342     struct type *pointer_type;
 343
 344     /* C++: also need a reference type.  */
 345
 346     struct type *reference_type;
 347
 348     /* C-v variant chain. This points to a type that
 349        differs from this one only in a const or volatile
 350        attribute (or both). The various c-v variants
 351        are chained together in a ring. */
 352     struct type *cv_type;
 353
 354     /* Address-space delimited variant chain.  This points to a type
 355        that differs from this one only in an address-space qualifier
 356        attribute.  The otherwise-identical address-space delimited
 357        types are chained together in a ring. */
 358     struct type *as_type;
 359
 360     /* Flags about this type.  */
 361
 362     int flags;
 363
 364     /* Number of fields described for this type */
 365
 366     short nfields;
 367
 368     /* For structure and union types, a description of each field.
 369        For set and pascal array types, there is one "field",
 370        whose type is the domain type of the set or array.
 371        For range types, there are two "fields",
 372        the minimum and maximum values (both inclusive).
 373        For enum types, each possible value is described by one "field".
 374        For a function type, a "field" for each parameter type.
 375        For C++ classes, there is one field for each base class (if it is
 376        a derived class) plus one field for each class data member.  Member
 377        functions are recorded elsewhere.
 378
 379        Using a pointer to a separate array of fields
 380        allows all types to have the same size, which is useful
 381        because we can allocate the space for a type before
 382        we know what to put in it.  */
 383
 384     struct field
 385       {
 386
 387
 388
 389         union field_location
 390           {
 391             /* Position of this field, counting in bits from start of
 392                containing structure.
 393                For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 394                For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
 395                For a function type, this is the position in the argument list
 396                of this argument.
 397                For a range bound or enum value, this is the value itself. */
 398
 399             int bitpos;
 400
 401             /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
 402                is the location (in the target) of the static field.
 403                Otherwise, physname is the mangled label of the static field. */
 404
 405             CORE_ADDR physaddr;
 406             char *physname;
 407           }
 408         loc;
 409
 410         /* Size of this field, in bits, or zero if not packed.
 411            For an unpacked field, the field's type's length
 412            says how many bytes the field occupies.
 413            A value of -1 or -2 indicates a static field;  -1 means the location
 414            is specified by the label loc.physname;  -2 means that loc.physaddr
 415            specifies the actual address. */
 416
 417         int bitsize;
 418
 419         /* In a struct or union type, type of this field.
 420            In a function type, type of this argument.
 421            In an array type, the domain-type of the array.  */
 422
 423         struct type *type;
 424
 425         /* Name of field, value or argument.
 426            NULL for range bounds and array domains.  */
 427
 428         char *name;
 429
 430       }
 431      *fields;
 432
 433     /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
 434        is the base class which defined the virtual function table pointer.
 435
 436        For types that are pointer to member types (TYPE_CODE_MEMBER),
 437        VPTR_BASETYPE is the type that this pointer is a member of.
 438
 439        For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
 440        type that contains the method.
 441
 442        Unused otherwise.  */
 443
 444     struct type *vptr_basetype;
 445
 446     /* Field number of the virtual function table pointer in
 447        VPTR_BASETYPE.  If -1, we were unable to find the virtual
 448        function table pointer in initial symbol reading, and
 449        fill_in_vptr_fieldno should be called to find it if possible.
 450
 451        Unused if this type does not have virtual functions.  */
 452
 453     int vptr_fieldno;
 454
 455     /* Slot to point to additional language-specific fields of this type.  */
 456
 457     union type_specific
 458       {
 459
 460         /* ARG_TYPES is for TYPE_CODE_METHOD.
 461            Contains the type of each argument, ending with a void type
 462            after the last argument for normal member functions or a NULL
 463            pointer after the last argument for functions with variable
 464            arguments.  */
 465
 466         struct type **arg_types;
 467
 468         /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 469            cplus_struct_default, a default static instance of a struct
 470            cplus_struct_type. */
 471
 472         struct cplus_struct_type *cplus_stuff;
 473
 474         /* FLOATFORMAT is for TYPE_CODE_FLT.  It is a pointer to the
 475            floatformat object that describes the floating-point value
 476            that resides within the type.  */
 477
 478         const struct floatformat *floatformat;
 479       }
 480     type_specific;
 481   };
 482
 483 #define NULL_TYPE ((struct type *) 0)
 484
 485 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 486    nodes.  */
 487
 488 struct cplus_struct_type
 489   {
 490     /* Number of base classes this type derives from.  The baseclasses are
 491        stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 492        the struct type).  I think only the `type' field of such a field has
 493        any meaning.  */
 494
 495     short n_baseclasses;
 496
 497     /* Number of methods with unique names.  All overloaded methods with
 498        the same name count only once. */
 499
 500     short nfn_fields;
 501
 502     /* Number of methods described for this type, not including the
 503        methods that it derives from.  */
 504
 505     short nfn_fields_total;
 506
 507     /* The "declared_type" field contains a code saying how the
 508        user really declared this type, e.g., "class s", "union s",
 509        "struct s".
 510        The 3 above things come out from the C++ compiler looking like classes,
 511        but we keep track of the real declaration so we can give
 512        the correct information on "ptype". (Note: TEMPLATE may not
 513        belong in this list...)  */
 514
 515 #define DECLARED_TYPE_CLASS 0
 516 #define DECLARED_TYPE_UNION 1
 517 #define DECLARED_TYPE_STRUCT 2
 518 #define DECLARED_TYPE_TEMPLATE 3
 519     short declared_type;        /* One of the above codes */
 520
 521     /* For derived classes, the number of base classes is given by n_baseclasses
 522        and virtual_field_bits is a bit vector containing one bit per base class.
 523        If the base class is virtual, the corresponding bit will be set.
 524        I.E, given:
 525
 526        class A{};
 527        class B{};
 528        class C : public B, public virtual A {};
 529
 530        B is a baseclass of C; A is a virtual baseclass for C.
 531        This is a C++ 2.0 language feature. */
 532
 533     B_TYPE *virtual_field_bits;
 534
 535     /* For classes with private fields, the number of fields is given by
 536        nfields and private_field_bits is a bit vector containing one bit
 537        per field.
 538        If the field is private, the corresponding bit will be set. */
 539
 540     B_TYPE *private_field_bits;
 541
 542     /* For classes with protected fields, the number of fields is given by
 543        nfields and protected_field_bits is a bit vector containing one bit
 544        per field.
 545        If the field is private, the corresponding bit will be set. */
 546
 547     B_TYPE *protected_field_bits;
 548
 549     /* for classes with fields to be ignored, either this is optimized out
 550        or this field has length 0 */
 551
 552     B_TYPE *ignore_field_bits;
 553
 554     /* For classes, structures, and unions, a description of each field,
 555        which consists of an overloaded name, followed by the types of
 556        arguments that the method expects, and then the name after it
 557        has been renamed to make it distinct.
 558
 559        fn_fieldlists points to an array of nfn_fields of these. */
 560
 561     struct fn_fieldlist
 562       {
 563
 564         /* The overloaded name.  */
 565
 566         char *name;
 567
 568         /* The number of methods with this name.  */
 569
 570         int length;
 571
 572         /* The list of methods.  */
 573
 574         struct fn_field
 575           {
 576
 577             /* If is_stub is clear, this is the mangled name which we can
 578                look up to find the address of the method (FIXME: it would
 579                be cleaner to have a pointer to the struct symbol here
 580                instead).  */
 581
 582             /* If is_stub is set, this is the portion of the mangled
 583                name which specifies the arguments.  For example, "ii",
 584                if there are two int arguments, or "" if there are no
 585                arguments.  See gdb_mangle_name for the conversion from this
 586                format to the one used if is_stub is clear.  */
 587
 588             char *physname;
 589
 590             /* The function type for the method.
 591                (This comment used to say "The return value of the method",
 592                but that's wrong. The function type
 593                is expected here, i.e. something with TYPE_CODE_FUNC,
 594                and *not* the return-value type). */
 595
 596             struct type *type;
 597
 598             /* The argument list.  Only valid if is_stub is clear.  Contains
 599                the type of each argument, including `this', and ending with
 600                a NULL pointer after the last argument.  Should not contain
 601                a `this' pointer for static member functions.  */
 602
 603             struct type **args;
 604
 605             /* For virtual functions.
 606                First baseclass that defines this virtual function.   */
 607
 608             struct type *fcontext;
 609
 610             /* Attributes. */
 611
 612             unsigned int is_const:1;
 613             unsigned int is_volatile:1;
 614             unsigned int is_private:1;
 615             unsigned int is_protected:1;
 616             unsigned int is_public:1;
 617             unsigned int is_abstract:1;
 618             unsigned int is_static:1;
 619             unsigned int is_final:1;
 620             unsigned int is_synchronized:1;
 621             unsigned int is_native:1;
 622
 623             /* A stub method only has some fields valid (but they are enough
 624                to reconstruct the rest of the fields).  */
 625             unsigned int is_stub:1;
 626
 627             /* C++ method that is inlined */
 628             unsigned int is_inlined:1;
 629
 630             /* Unused.  */
 631             unsigned int dummy:4;
 632
 633             /* Index into that baseclass's virtual function table,
 634                minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 635
 636             unsigned int voffset:16;
 637
 638 #define VOFFSET_STATIC 1
 639
 640           }
 641          *fn_fields;
 642
 643       }
 644      *fn_fieldlists;
 645
 646     /* If this "struct type" describes a template, then it
 647      * has arguments. "template_args" points to an array of
 648      * template arg descriptors, of length "ntemplate_args".
 649      * The only real information in each of these template arg descriptors
 650      * is a name. "type" will typically just point to a "struct type" with
 651      * the placeholder TYPE_CODE_TEMPLATE_ARG type.
 652      */
 653     short ntemplate_args;
 654     struct template_arg
 655       {
 656         char *name;
 657         struct type *type;
 658       }
 659      *template_args;
 660
 661     /* If this "struct type" describes a template, it has a list
 662      * of instantiations. "instantiations" is a pointer to an array
 663      * of type's, one representing each instantiation. There
 664      * are "ninstantiations" elements in this array.
 665      */
 666     short ninstantiations;
 667     struct type **instantiations;
 668
 669     /* The following points to information relevant to the runtime model
 670      * of the compiler.
 671      * Currently being used only for HP's ANSI C++ compiler.
 672      * (This type may have to be changed/enhanced for other compilers.)
 673      *
 674      * RUNTIME_PTR is NULL if there is no runtime information (currently
 675      * this means the type was not compiled by HP aCC).
 676      *
 677      * Fields in structure pointed to:
 678      * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
 679      *
 680      * ->PRIMARY_BASE points to the first non-virtual base class that has
 681      * a virtual table.
 682      *
 683      * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
 684      * point to the type information for all virtual bases among this type's
 685      * ancestors.
 686      */
 687     struct runtime_info
 688       {
 689         short has_vtable;
 690         struct type *primary_base;
 691         struct type **virtual_base_list;
 692       }
 693      *runtime_ptr;
 694
 695     /* Pointer to information about enclosing scope, if this is a
 696      * local type.  If it is not a local type, this is NULL
 697      */
 698     struct local_type_info
 699       {
 700         char *file;
 701         int line;
 702       }
 703      *localtype_ptr;
 704   };
 705
 706 /* Struct used in computing virtual base list */
 707 struct vbase
 708   {
 709     struct type *vbasetype;     /* pointer to virtual base */
 710     struct vbase *next;         /* next in chain */
 711   };
 712
 713 /* Struct used for ranking a function for overload resolution */
 714 struct badness_vector
 715   {
 716     int length;
 717     int *rank;
 718   };
 719
 720 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 721    this shared static structure. */
 722
 723 extern const struct cplus_struct_type cplus_struct_default;
 724
 725 extern void allocate_cplus_struct_type (struct type *);
 726
 727 #define INIT_CPLUS_SPECIFIC(type) \
 728   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 729 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 730 #define HAVE_CPLUS_STRUCT(type) \
 731   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 732
 733 #define TYPE_NAME(thistype) (thistype)->name
 734 #define TYPE_TAG_NAME(type) ((type)->tag_name)
 735 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
 736 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 737 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 738 #define TYPE_CV_TYPE(thistype) (thistype)->cv_type
 739 #define TYPE_AS_TYPE(thistype) (thistype)->as_type
 740 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
 741    But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
 742    so you only have to call check_typedef once.  Since allocate_value
 743    calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe.  */
 744 #define TYPE_LENGTH(thistype) (thistype)->length
 745 #define TYPE_OBJFILE(thistype) (thistype)->objfile
 746 #define TYPE_FLAGS(thistype) (thistype)->flags
 747 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
 748    type, you need to do TYPE_CODE (check_type (this_type)). */
 749 #define TYPE_CODE(thistype) (thistype)->code
 750 #define TYPE_NFIELDS(thistype) (thistype)->nfields
 751 #define TYPE_FIELDS(thistype) (thistype)->fields
 752 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
 753 #define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
 754
 755 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
 756 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 757 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 758
 759 /* Moto-specific stuff for FORTRAN arrays */
 760
 761 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
 762 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
 763
 764 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
 765    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
 766
 767 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
 768    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
 769
 770 /* C++ */
 771
 772 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
 773 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
 774 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
 775 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 776 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 777 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 778 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
 779 #define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
 780 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
 781 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
 782 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
 783 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
 784 #define TYPE_FLOATFORMAT(thistype) (thistype)->type_specific.floatformat
 785 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
 786 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 787 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
 788 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
 789 #define BASETYPE_VIA_PUBLIC(thistype, index) \
 790   ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
 791
 792 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 793   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 794     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
 795
 796 #define FIELD_TYPE(thisfld) ((thisfld).type)
 797 #define FIELD_NAME(thisfld) ((thisfld).name)
 798 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
 799 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
 800 #define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
 801 #define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
 802 #define SET_FIELD_PHYSNAME(thisfld, name) \
 803   ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
 804 #define SET_FIELD_PHYSADDR(thisfld, name) \
 805   ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
 806 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
 807 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
 808 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
 809 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
 810 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
 811 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
 812 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
 813 #define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
 814
 815 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 816   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 817 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 818   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 819 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 820   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 821 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 822   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 823 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 824   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 825 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 826   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 827 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 828   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 829 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 830   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 831 #define TYPE_FIELD_PRIVATE(thistype, n) \
 832   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 833     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 834 #define TYPE_FIELD_PROTECTED(thistype, n) \
 835   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 836     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 837 #define TYPE_FIELD_IGNORE(thistype, n) \
 838   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 839     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 840 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 841   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 842     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
 843
 844 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitsize < 0)
 845 #define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) ((thistype)->fields[n].bitsize == -2)
 846 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
 847 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
 848
 849 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 850 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 851 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 852 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 853 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 854
 855 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 856 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 857 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 858 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
 859 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 860 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 861 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 862 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 863 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
 864 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
 865 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
 866 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
 867 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
 868 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
 869 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 870 #define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
 871 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 872 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 873 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 874 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 875
 876 #define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
 877 #define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
 878 #define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
 879 #define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
 880 #define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
 881
 882 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
 883 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
 884 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
 885
 886 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) ||        \
 887                                    (TYPE_CODE (thistype) == TYPE_CODE_UNION))        && \
 888                                   (TYPE_NFIELDS (thistype) == 0)                     && \
 889                                   (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
 890
 891
 892
 893 /* Implicit sizes */
 894 extern struct type *builtin_type_void;
 895 extern struct type *builtin_type_char;
 896 extern struct type *builtin_type_short;
 897 extern struct type *builtin_type_int;
 898 extern struct type *builtin_type_long;
 899 extern struct type *builtin_type_signed_char;
 900 extern struct type *builtin_type_unsigned_char;
 901 extern struct type *builtin_type_unsigned_short;
 902 extern struct type *builtin_type_unsigned_int;
 903 extern struct type *builtin_type_unsigned_long;
 904 extern struct type *builtin_type_float;
 905 extern struct type *builtin_type_double;
 906 extern struct type *builtin_type_long_double;
 907 extern struct type *builtin_type_complex;
 908 extern struct type *builtin_type_double_complex;
 909 extern struct type *builtin_type_string;
 910 extern struct type *builtin_type_bool;
 911
 912 /* Address/pointer types: */
 913 /* (C) Language `pointer to data' type.  Some target platforms use an
 914    implicitly {sign,zero} -extended 32 bit C language pointer on a 64
 915    bit ISA.  */
 916 extern struct type *builtin_type_void_data_ptr;
 917
 918 /* (C) Language `pointer to function returning void' type.  Since
 919    ANSI, C standards have explicitly said that pointers to functions
 920    and pointers to data are not interconvertible --- that is, you
 921    can't cast a function pointer to void * and back, and expect to get
 922    the same value.  However, all function pointer types are
 923    interconvertible, so void (*) () can server as a generic function
 924    pointer.  */
 925 extern struct type *builtin_type_void_func_ptr;
 926
 927 /* The target CPU's address type.  This is the ISA address size. */
 928 extern struct type *builtin_type_CORE_ADDR;
 929 /* The symbol table address type.  Some object file formats have a 32
 930    bit address type even though the TARGET has a 64 bit pointer type
 931    (cf MIPS). */
 932 extern struct type *builtin_type_bfd_vma;
 933
 934 /* Explicit sizes - see C9X <intypes.h> for naming scheme */
 935 extern struct type *builtin_type_int8;
 936 extern struct type *builtin_type_uint8;
 937 extern struct type *builtin_type_int16;
 938 extern struct type *builtin_type_uint16;
 939 extern struct type *builtin_type_int32;
 940 extern struct type *builtin_type_uint32;
 941 extern struct type *builtin_type_int64;
 942 extern struct type *builtin_type_uint64;
 943 extern struct type *builtin_type_int128;
 944 extern struct type *builtin_type_uint128;
 945
 946 /* SIMD types.  We inherit these names from GCC.  */
 947 extern struct type *builtin_type_v4sf;
 948 extern struct type *builtin_type_v4si;
 949 extern struct type *builtin_type_v8qi;
 950 extern struct type *builtin_type_v4hi;
 951 extern struct type *builtin_type_v2si;
 952
 953 /* Explicit floating-point formats.  See "floatformat.h".  */
 954 extern struct type *builtin_type_ieee_single_big;
 955 extern struct type *builtin_type_ieee_single_little;
 956 extern struct type *builtin_type_ieee_double_big;
 957 extern struct type *builtin_type_ieee_double_little;
 958 extern struct type *builtin_type_ieee_double_littlebyte_bigword;
 959 extern struct type *builtin_type_i387_ext;
 960 extern struct type *builtin_type_m68881_ext;
 961 extern struct type *builtin_type_i960_ext;
 962 extern struct type *builtin_type_m88110_ext;
 963 extern struct type *builtin_type_m88110_harris_ext;
 964 extern struct type *builtin_type_arm_ext_big;
 965 extern struct type *builtin_type_arm_ext_littlebyte_bigword;
 966 extern struct type *builtin_type_ia64_spill_big;
 967 extern struct type *builtin_type_ia64_spill_little;
 968 extern struct type *builtin_type_ia64_quad_big;
 969 extern struct type *builtin_type_ia64_quad_little;
 970
 971 /* We use this for the '/c' print format, because builtin_type_char is
 972    just a one-byte integral type, which languages less laid back than
 973    C will print as ... well, a one-byte integral type.  */
 974 extern struct type *builtin_type_true_char;
 975
 976 /* This type represents a type that was unrecognized in symbol
 977    read-in.  */
 978
 979 extern struct type *builtin_type_error;
 980
 981 extern struct type *builtin_type_long_long;
 982 extern struct type *builtin_type_unsigned_long_long;
 983
 984 /* Modula-2 types */
 985
 986 extern struct type *builtin_type_m2_char;
 987 extern struct type *builtin_type_m2_int;
 988 extern struct type *builtin_type_m2_card;
 989 extern struct type *builtin_type_m2_real;
 990 extern struct type *builtin_type_m2_bool;
 991
 992 /* Chill types */
 993
 994 extern struct type *builtin_type_chill_bool;
 995 extern struct type *builtin_type_chill_char;
 996 extern struct type *builtin_type_chill_long;
 997 extern struct type *builtin_type_chill_ulong;
 998 extern struct type *builtin_type_chill_real;
 999
1000 /* Fortran (F77) types */
1001
1002 extern struct type *builtin_type_f_character;
1003 extern struct type *builtin_type_f_integer;
1004 extern struct type *builtin_type_f_integer_s2;
1005 extern struct type *builtin_type_f_logical;
1006 extern struct type *builtin_type_f_logical_s1;
1007 extern struct type *builtin_type_f_logical_s2;
1008 extern struct type *builtin_type_f_real;
1009 extern struct type *builtin_type_f_real_s8;
1010 extern struct type *builtin_type_f_real_s16;
1011 extern struct type *builtin_type_f_complex_s8;
1012 extern struct type *builtin_type_f_complex_s16;
1013 extern struct type *builtin_type_f_complex_s32;
1014 extern struct type *builtin_type_f_void;
1015
1016 /* RTTI for C++ */
1017 /* extern struct type *builtin_type_cxx_typeinfo; */
1018
1019 /* Maximum and minimum values of built-in types */
1020
1021 #define MAX_OF_TYPE(t)  \
1022    (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1023     : MAX_OF_SIZE(TYPE_LENGTH(t)))
1024
1025 #define MIN_OF_TYPE(t)  \
1026    (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1027     : MIN_OF_SIZE(TYPE_LENGTH(t)))
1028
1029 /* Allocate space for storing data associated with a particular type.
1030    We ensure that the space is allocated using the same mechanism that
1031    was used to allocate the space for the type structure itself.  I.E.
1032    if the type is on an objfile's type_obstack, then the space for data
1033    associated with that type will also be allocated on the type_obstack.
1034    If the type is not associated with any particular objfile (such as
1035    builtin types), then the data space will be allocated with xmalloc,
1036    the same as for the type structure. */
1037
1038 #define TYPE_ALLOC(t,size)  \
1039    (TYPE_OBJFILE (t) != NULL  \
1040     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
1041     : xmalloc (size))
1042
1043 extern struct type *alloc_type (struct objfile *);
1044
1045 extern struct type *init_type (enum type_code, int, int, char *,
1046                                struct objfile *);
1047
1048 extern struct type *lookup_reference_type (struct type *);
1049
1050 extern struct type *make_reference_type (struct type *, struct type **);
1051
1052 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1053
1054 extern void finish_cv_type (struct type *);
1055
1056 extern int address_space_name_to_int (char *);
1057
1058 extern char *address_space_int_to_name (int);
1059
1060 extern struct type *make_type_with_address_space (struct type *type,
1061                                                   int space_identifier);
1062
1063 extern struct type *lookup_member_type (struct type *, struct type *);
1064
1065 extern void
1066 smash_to_method_type (struct type *, struct type *, struct type *,
1067                       struct type **);
1068
1069 extern void
1070 smash_to_member_type (struct type *, struct type *, struct type *);
1071
1072 extern struct type *allocate_stub_method (struct type *);
1073
1074 extern char *type_name_no_tag (const struct type *);
1075
1076 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
1077
1078 extern struct type *make_pointer_type (struct type *, struct type **);
1079
1080 extern struct type *lookup_pointer_type (struct type *);
1081
1082 extern struct type *make_function_type (struct type *, struct type **);
1083
1084 extern struct type *lookup_function_type (struct type *);
1085
1086 extern struct type *create_range_type (struct type *, struct type *, int,
1087                                        int);
1088
1089 extern struct type *create_array_type (struct type *, struct type *,
1090                                        struct type *);
1091
1092 extern struct type *create_string_type (struct type *, struct type *);
1093
1094 extern struct type *create_set_type (struct type *, struct type *);
1095
1096 extern int chill_varying_type (struct type *);
1097
1098 extern struct type *lookup_unsigned_typename (char *);
1099
1100 extern struct type *lookup_signed_typename (char *);
1101
1102 extern struct type *check_typedef (struct type *);
1103
1104 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1105
1106 extern void check_stub_method (struct type *, int, int);
1107
1108 extern struct type *lookup_primitive_typename (char *);
1109
1110 extern char *gdb_mangle_name (struct type *, int, int);
1111
1112 extern struct type *builtin_type (char **);
1113
1114 extern struct type *lookup_typename (char *, struct block *, int);
1115
1116 extern struct type *lookup_template_type (char *, struct type *,
1117                                           struct block *);
1118
1119 extern struct type *lookup_fundamental_type (struct objfile *, int);
1120
1121 extern void fill_in_vptr_fieldno (struct type *);
1122
1123 extern int get_destructor_fn_field (struct type *, int *, int *);
1124
1125 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1126
1127 extern int is_ancestor (struct type *, struct type *);
1128
1129 extern int has_vtable (struct type *);
1130
1131 extern struct type *primary_base_class (struct type *);
1132
1133 extern struct type **virtual_base_list (struct type *);
1134
1135 extern int virtual_base_list_length (struct type *);
1136 extern int virtual_base_list_length_skip_primaries (struct type *);
1137
1138 extern int virtual_base_index (struct type *, struct type *);
1139 extern int virtual_base_index_skip_primaries (struct type *, struct type *);
1140
1141
1142 extern int class_index_in_primary_list (struct type *);
1143
1144 extern int count_virtual_fns (struct type *);
1145
1146 /* Constants for HP/Taligent ANSI C++ runtime model */
1147
1148 /* Where virtual function entries begin in the
1149  * virtual table, in the non-RRBC vtable format.
1150  * First 4 are the metavtable pointer, top offset,
1151  * typeinfo pointer, and dup base info pointer */
1152 #define HP_ACC_VFUNC_START        4
1153
1154 /* (Negative) Offset where virtual base offset entries begin
1155  * in the virtual table. Skips over metavtable pointer and
1156  * the self-offset entry.
1157  * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1158  * appear before the address point of the vtable (the slot
1159  * pointed to by the object's vtable pointer), i.e. at lower
1160  * addresses than the vtable pointer. */
1161 #define HP_ACC_VBASE_START        2
1162
1163 /* (Positive) Offset where the pointer to the typeinfo
1164  * object is present in the virtual table */
1165 #define HP_ACC_TYPEINFO_OFFSET    2
1166
1167 /* (Positive) Offset where the ``top offset'' entry of
1168  * the virtual table is */
1169 #define HP_ACC_TOP_OFFSET_OFFSET  1
1170
1171 /* Overload resolution */
1172
1173 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1174
1175 /* Badness if parameter list length doesn't match arg list length */
1176 #define LENGTH_MISMATCH_BADNESS      100
1177 /* Dummy badness value for nonexistent parameter positions */
1178 #define TOO_FEW_PARAMS_BADNESS       100
1179 /* Badness if no conversion among types */
1180 #define INCOMPATIBLE_TYPE_BADNESS    100
1181 /* Badness of coercing large integer to smaller size */
1182 #define INTEGER_COERCION_BADNESS     100
1183 /* Badness of coercing large floating type to smaller size */
1184 #define FLOAT_COERCION_BADNESS       100
1185
1186 /* Badness of integral promotion */
1187 #define INTEGER_PROMOTION_BADNESS      1
1188 /* Badness of floating promotion */
1189 #define FLOAT_PROMOTION_BADNESS        1
1190 /* Badness of integral conversion */
1191 #define INTEGER_CONVERSION_BADNESS     2
1192 /* Badness of floating conversion */
1193 #define FLOAT_CONVERSION_BADNESS       2
1194 /* Badness of integer<->floating conversions */
1195 #define INT_FLOAT_CONVERSION_BADNESS   2
1196 /* Badness of converting to a boolean */
1197 #define BOOLEAN_CONVERSION_BADNESS     2
1198 /* Badness of pointer conversion */
1199 #define POINTER_CONVERSION_BADNESS     2
1200 /* Badness of conversion of pointer to void pointer */
1201 #define VOID_PTR_CONVERSION_BADNESS    2
1202 /* Badness of converting derived to base class */
1203 #define BASE_CONVERSION_BADNESS        2
1204 /* Badness of converting from non-reference to reference */
1205 #define REFERENCE_CONVERSION_BADNESS   2
1206
1207 /* Non-standard conversions allowed by the debugger */
1208 /* Converting a pointer to an int is usually OK */
1209 #define NS_POINTER_CONVERSION_BADNESS 10
1210
1211
1212 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1213
1214 extern struct badness_vector *rank_function (struct type **, int,
1215                                              struct type **, int);
1216
1217 extern int rank_one_type (struct type *, struct type *);
1218
1219 extern void recursive_dump_type (struct type *, int);
1220
1221 /* printcmd.c */
1222
1223 extern void print_scalar_formatted (char *, struct type *, int, int,
1224                                     struct ui_file *);
1225
1226 extern int can_dereference (struct type *);
1227
1228 extern int is_integral_type (struct type *);
1229
1230 extern void maintenance_print_type (char *, int);
1231
1232 #endif /* GDBTYPES_H */