gdb/gdbtypes.h

   1 /* Internal type definitions for GDB.
   2
   3    Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   4    2001, 2002, 2003 Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Support, using pieces from other GDB modules.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330,
  23    Boston, MA 02111-1307, USA.  */
  24
  25 #if !defined (GDBTYPES_H)
  26 #define GDBTYPES_H 1
  27
  28 /* Forward declarations for prototypes.  */
  29 struct block;
  30
  31 /* Codes for `fundamental types'.  This is a monstrosity based on the
  32    bogus notion that there are certain compiler-independent
  33    `fundamental types'.  None of these is well-defined (how big is
  34    FT_SHORT?  Does it depend on the language?  How does the
  35    language-specific code know which type to correlate to FT_SHORT?)  */
  36
  37 #define FT_VOID                 0
  38 #define FT_BOOLEAN              1
  39 #define FT_CHAR                 2       /* we use this for not-unsigned C/C++ chars */
  40 #define FT_SIGNED_CHAR          3       /* we use this for C++ signed chars */
  41 #define FT_UNSIGNED_CHAR        4       /* we use this for C/C++ unsigned chars */
  42 #define FT_SHORT                5
  43 #define FT_SIGNED_SHORT         6
  44 #define FT_UNSIGNED_SHORT       7
  45 #define FT_INTEGER              8
  46 #define FT_SIGNED_INTEGER       9
  47 #define FT_UNSIGNED_INTEGER     10
  48 #define FT_LONG                 11
  49 #define FT_SIGNED_LONG          12
  50 #define FT_UNSIGNED_LONG        13
  51 #define FT_LONG_LONG            14
  52 #define FT_SIGNED_LONG_LONG     15
  53 #define FT_UNSIGNED_LONG_LONG   16
  54 #define FT_FLOAT                17
  55 #define FT_DBL_PREC_FLOAT       18
  56 #define FT_EXT_PREC_FLOAT       19
  57 #define FT_COMPLEX              20
  58 #define FT_DBL_PREC_COMPLEX     21
  59 #define FT_EXT_PREC_COMPLEX     22
  60 #define FT_STRING               23
  61 #define FT_FIXED_DECIMAL        24
  62 #define FT_FLOAT_DECIMAL        25
  63 #define FT_BYTE                 26
  64 #define FT_UNSIGNED_BYTE        27
  65 #define FT_TEMPLATE_ARG         28
  66
  67 #define FT_NUM_MEMBERS          29      /* Highest FT_* above, plus one. */
  68
  69 /* Some macros for char-based bitfields.  */
  70
  71 #define B_SET(a,x)      ((a)[(x)>>3] |= (1 << ((x)&7)))
  72 #define B_CLR(a,x)      ((a)[(x)>>3] &= ~(1 << ((x)&7)))
  73 #define B_TST(a,x)      ((a)[(x)>>3] & (1 << ((x)&7)))
  74 #define B_TYPE          unsigned char
  75 #define B_BYTES(x)      ( 1 + ((x)>>3) )
  76 #define B_CLRALL(a,x)   memset ((a), 0, B_BYTES(x))
  77
  78 /* Different kinds of data types are distinguished by the `code' field.  */
  79
  80 enum type_code
  81   {
  82     TYPE_CODE_UNDEF,            /* Not used; catches errors */
  83     TYPE_CODE_PTR,              /* Pointer type */
  84     TYPE_CODE_ARRAY,            /* Array type with lower & upper bounds. */
  85     TYPE_CODE_STRUCT,           /* C struct or Pascal record */
  86     TYPE_CODE_UNION,            /* C union or Pascal variant part */
  87     TYPE_CODE_ENUM,             /* Enumeration type */
  88     TYPE_CODE_FUNC,             /* Function type */
  89     TYPE_CODE_INT,              /* Integer type */
  90
  91     /* Floating type.  This is *NOT* a complex type.  Beware, there are parts
  92        of GDB which bogusly assume that TYPE_CODE_FLT can mean complex.  */
  93     TYPE_CODE_FLT,
  94
  95     /* Void type.  The length field specifies the length (probably always
  96        one) which is used in pointer arithmetic involving pointers to
  97        this type, but actually dereferencing such a pointer is invalid;
  98        a void type has no length and no actual representation in memory
  99        or registers.  A pointer to a void type is a generic pointer.  */
 100     TYPE_CODE_VOID,
 101
 102     TYPE_CODE_SET,              /* Pascal sets */
 103     TYPE_CODE_RANGE,            /* Range (integers within spec'd bounds) */
 104
 105     /* A string type which is like an array of character but prints
 106        differently (at least for (the deleted) CHILL).  It does not
 107        contain a length field as Pascal strings (for many Pascals,
 108        anyway) do; if we want to deal with such strings, we should use
 109        a new type code.  */
 110     TYPE_CODE_STRING,
 111
 112     /* String of bits; like TYPE_CODE_SET but prints differently (at
 113        least for (the deleted) CHILL).  */
 114     TYPE_CODE_BITSTRING,
 115
 116     /* Unknown type.  The length field is valid if we were able to
 117        deduce that much about the type, or 0 if we don't even know that.  */
 118     TYPE_CODE_ERROR,
 119
 120     /* C++ */
 121     TYPE_CODE_MEMBER,           /* Member type */
 122     TYPE_CODE_METHOD,           /* Method type */
 123     TYPE_CODE_REF,              /* C++ Reference types */
 124
 125     TYPE_CODE_CHAR,             /* *real* character type */
 126
 127     /* Boolean type.  0 is false, 1 is true, and other values are non-boolean
 128        (e.g. FORTRAN "logical" used as unsigned int).  */
 129     TYPE_CODE_BOOL,
 130
 131     /* Fortran */
 132     TYPE_CODE_COMPLEX,          /* Complex float */
 133
 134     TYPE_CODE_TYPEDEF,
 135     TYPE_CODE_TEMPLATE,         /* C++ template */
 136     TYPE_CODE_TEMPLATE_ARG      /* C++ template arg */
 137
 138   };
 139
 140 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
 141    alias for TYPE_CODE_STRUCT.  This is for DWARF, which has a distinct
 142    "class" attribute.  Perhaps we should actually have a separate TYPE_CODE
 143    so that we can print "class" or "struct" depending on what the debug
 144    info said.  It's not clear we should bother.  */
 145
 146 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
 147
 148 /* Some bits for the type's flags word, and macros to test them. */
 149
 150 /* Unsigned integer type.  If this is not set for a TYPE_CODE_INT, the
 151    type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
 152
 153 #define TYPE_FLAG_UNSIGNED      (1 << 0)
 154 #define TYPE_UNSIGNED(t)        (TYPE_FLAGS (t) & TYPE_FLAG_UNSIGNED)
 155
 156 /* No sign for this type.  In C++, "char", "signed char", and "unsigned
 157    char" are distinct types; so we need an extra flag to indicate the
 158    absence of a sign! */
 159
 160 #define TYPE_FLAG_NOSIGN        (1 << 1)
 161 #define TYPE_NOSIGN(t)          (TYPE_FLAGS (t) & TYPE_FLAG_NOSIGN)
 162
 163 /* This appears in a type's flags word if it is a stub type (e.g., if
 164    someone referenced a type that wasn't defined in a source file
 165    via (struct sir_not_appearing_in_this_film *)).  */
 166
 167 #define TYPE_FLAG_STUB          (1 << 2)
 168 #define TYPE_STUB(t)            (TYPE_FLAGS (t) & TYPE_FLAG_STUB)
 169
 170 /* The target type of this type is a stub type, and this type needs to
 171    be updated if it gets un-stubbed in check_typedef.
 172    Used for arrays and ranges, in which TYPE_LENGTH of the array/range
 173    gets set based on the TYPE_LENGTH of the target type.
 174    Also, set for TYPE_CODE_TYPEDEF. */
 175
 176 #define TYPE_FLAG_TARGET_STUB   (1 << 3)
 177 #define TYPE_TARGET_STUB(t)     (TYPE_FLAGS (t) & TYPE_FLAG_TARGET_STUB)
 178
 179 /* Static type.  If this is set, the corresponding type had
 180  * a static modifier.
 181  * Note: This may be unnecessary, since static data members
 182  * are indicated by other means (bitpos == -1)
 183  */
 184
 185 #define TYPE_FLAG_STATIC        (1 << 4)
 186 #define TYPE_STATIC(t)          (TYPE_FLAGS (t) & TYPE_FLAG_STATIC)
 187
 188 /* Constant type.  If this is set, the corresponding type has a
 189  * const modifier.
 190  */
 191
 192 #define TYPE_FLAG_CONST         (1 << 5)
 193 #define TYPE_CONST(t)           (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CONST)
 194
 195 /* Volatile type.  If this is set, the corresponding type has a
 196  * volatile modifier.
 197  */
 198
 199 #define TYPE_FLAG_VOLATILE      (1 << 6)
 200 #define TYPE_VOLATILE(t)        (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_VOLATILE)
 201
 202
 203 /* This is a function type which appears to have a prototype.  We need this
 204    for function calls in order to tell us if it's necessary to coerce the args,
 205    or to just do the standard conversions.  This is used with a short field. */
 206
 207 #define TYPE_FLAG_PROTOTYPED    (1 << 7)
 208 #define TYPE_PROTOTYPED(t)      (TYPE_FLAGS (t) & TYPE_FLAG_PROTOTYPED)
 209
 210 /* This flag is used to indicate that processing for this type
 211    is incomplete.
 212
 213    (Mostly intended for HP platforms, where class methods, for
 214    instance, can be encountered before their classes in the debug
 215    info; the incomplete type has to be marked so that the class and
 216    the method can be assigned correct types.) */
 217
 218 #define TYPE_FLAG_INCOMPLETE    (1 << 8)
 219 #define TYPE_INCOMPLETE(t)      (TYPE_FLAGS (t) & TYPE_FLAG_INCOMPLETE)
 220
 221 /* Instruction-space delimited type.  This is for Harvard architectures
 222    which have separate instruction and data address spaces (and perhaps
 223    others).
 224
 225    GDB usually defines a flat address space that is a superset of the
 226    architecture's two (or more) address spaces, but this is an extension
 227    of the architecture's model.
 228
 229    If TYPE_FLAG_INST is set, an object of the corresponding type
 230    resides in instruction memory, even if its address (in the extended
 231    flat address space) does not reflect this.
 232
 233    Similarly, if TYPE_FLAG_DATA is set, then an object of the
 234    corresponding type resides in the data memory space, even if
 235    this is not indicated by its (flat address space) address.
 236
 237    If neither flag is set, the default space for functions / methods
 238    is instruction space, and for data objects is data memory.  */
 239
 240 #define TYPE_FLAG_CODE_SPACE    (1 << 9)
 241 #define TYPE_CODE_SPACE(t)      (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CODE_SPACE)
 242
 243 #define TYPE_FLAG_DATA_SPACE    (1 << 10)
 244 #define TYPE_DATA_SPACE(t)      (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_DATA_SPACE)
 245
 246 /* FIXME drow/2002-06-03:  Only used for methods, but applies as well
 247    to functions.  */
 248
 249 #define TYPE_FLAG_VARARGS       (1 << 11)
 250 #define TYPE_VARARGS(t)         (TYPE_FLAGS (t) & TYPE_FLAG_VARARGS)
 251
 252 /* Identify a vector type.  Gcc is handling this by adding an extra
 253    attribute to the array type.  We slurp that in as a new flag of a
 254    type.  This is used only in dwarf2read.c.  */
 255 #define TYPE_FLAG_VECTOR        (1 << 12)
 256 #define TYPE_VECTOR(t)          (TYPE_FLAGS (t) & TYPE_FLAG_VECTOR)
 257
 258 /* Address class flags.  Some environments provide for pointers whose
 259    size is different from that of a normal pointer or address types
 260    where the bits are interpreted differently than normal addresses.  The
 261    TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific
 262    ways to represent these different types of address classes.  */
 263 #define TYPE_FLAG_ADDRESS_CLASS_1 (1 << 13)
 264 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
 265                                  & TYPE_FLAG_ADDRESS_CLASS_1)
 266 #define TYPE_FLAG_ADDRESS_CLASS_2 (1 << 14)
 267 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
 268                                  & TYPE_FLAG_ADDRESS_CLASS_2)
 269 #define TYPE_FLAG_ADDRESS_CLASS_ALL (TYPE_FLAG_ADDRESS_CLASS_1 \
 270                                      | TYPE_FLAG_ADDRESS_CLASS_2)
 271 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
 272                                    & TYPE_FLAG_ADDRESS_CLASS_ALL)
 273
 274 struct main_type
 275 {
 276   /* Code for kind of type */
 277
 278   enum type_code code;
 279
 280   /* Name of this type, or NULL if none.
 281
 282      This is used for printing only, except by poorly designed C++ code.
 283      For looking up a name, look for a symbol in the VAR_NAMESPACE.  */
 284
 285   char *name;
 286
 287   /* Tag name for this type, or NULL if none.  This means that the
 288      name of the type consists of a keyword followed by the tag name.
 289      Which keyword is determined by the type code ("struct" for
 290      TYPE_CODE_STRUCT, etc.).  As far as I know C/C++ are the only languages
 291      with this feature.
 292
 293      This is used for printing only, except by poorly designed C++ code.
 294      For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
 295      One more legitimate use is that if TYPE_FLAG_STUB is set, this is
 296      the name to use to look for definitions in other files.  */
 297
 298   char *tag_name;
 299
 300   /* Length of storage for a value of this type.  This is what
 301      sizeof(type) would return; use it for address arithmetic,
 302      memory reads and writes, etc.  This size includes padding.  For
 303      example, an i386 extended-precision floating point value really
 304      only occupies ten bytes, but most ABI's declare its size to be
 305      12 bytes, to preserve alignment.  A `struct type' representing
 306      such a floating-point type would have a `length' value of 12,
 307      even though the last two bytes are unused.
 308
 309      There's a bit of a host/target mess here, if you're concerned
 310      about machines whose bytes aren't eight bits long, or who don't
 311      have byte-addressed memory.  Various places pass this to memcpy
 312      and such, meaning it must be in units of host bytes.  Various
 313      other places expect they can calculate addresses by adding it
 314      and such, meaning it must be in units of target bytes.  For
 315      some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
 316      and TARGET_CHAR_BIT will be (say) 32, this is a problem.
 317
 318      One fix would be to make this field in bits (requiring that it
 319      always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
 320      the other choice would be to make it consistently in units of
 321      HOST_CHAR_BIT.  However, this would still fail to address
 322      machines based on a ternary or decimal representation.  */
 323
 324   unsigned length;
 325
 326   /* FIXME, these should probably be restricted to a Fortran-specific
 327      field in some fashion.  */
 328 #define BOUND_CANNOT_BE_DETERMINED   5
 329 #define BOUND_BY_REF_ON_STACK        4
 330 #define BOUND_BY_VALUE_ON_STACK      3
 331 #define BOUND_BY_REF_IN_REG          2
 332 #define BOUND_BY_VALUE_IN_REG        1
 333 #define BOUND_SIMPLE                 0
 334   int upper_bound_type;
 335   int lower_bound_type;
 336
 337   /* Every type is now associated with a particular objfile, and the
 338      type is allocated on the type_obstack for that objfile.  One problem
 339      however, is that there are times when gdb allocates new types while
 340      it is not in the process of reading symbols from a particular objfile.
 341      Fortunately, these happen when the type being created is a derived
 342      type of an existing type, such as in lookup_pointer_type().  So
 343      we can just allocate the new type using the same objfile as the
 344      existing type, but to do this we need a backpointer to the objfile
 345      from the existing type.  Yes this is somewhat ugly, but without
 346      major overhaul of the internal type system, it can't be avoided
 347      for now. */
 348
 349   struct objfile *objfile;
 350
 351   /* For a pointer type, describes the type of object pointed to.
 352      For an array type, describes the type of the elements.
 353      For a function or method type, describes the type of the return value.
 354      For a range type, describes the type of the full range.
 355      For a complex type, describes the type of each coordinate.
 356      Unused otherwise.  */
 357
 358   struct type *target_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 or method type, a "field" for each parameter.
 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     union field_location
 387     {
 388       /* Position of this field, counting in bits from start of
 389          containing structure.
 390          For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
 391          For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
 392          For a range bound or enum value, this is the value itself. */
 393
 394       int bitpos;
 395
 396       /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
 397          is the location (in the target) of the static field.
 398          Otherwise, physname is the mangled label of the static field. */
 399
 400       CORE_ADDR physaddr;
 401       char *physname;
 402     }
 403     loc;
 404
 405     /* For a function or member type, this is 1 if the argument is marked
 406        artificial.  Artificial arguments should not be shown to the
 407        user.  */
 408     unsigned int artificial : 1;
 409
 410     /* This flag is zero for non-static fields, 1 for fields whose location
 411        is specified by the label loc.physname, and 2 for fields whose location
 412        is specified by loc.physaddr.  */
 413
 414     unsigned int static_kind : 2;
 415
 416     /* Size of this field, in bits, or zero if not packed.
 417        For an unpacked field, the field's type's length
 418        says how many bytes the field occupies.  */
 419
 420     unsigned int bitsize : 29;
 421
 422     /* In a struct or union type, type of this field.
 423        In a function or member type, type of this argument.
 424        In an array type, the domain-type of the array.  */
 425
 426     struct type *type;
 427
 428     /* Name of field, value or argument.
 429        NULL for range bounds, array domains, and member function
 430        arguments.  */
 431
 432     char *name;
 433
 434   } *fields;
 435
 436   /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
 437      is the base class which defined the virtual function table pointer.
 438
 439      For types that are pointer to member types (TYPE_CODE_MEMBER),
 440      VPTR_BASETYPE is the type that this pointer is a member of.
 441
 442      For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
 443      type that contains the method.
 444
 445      Unused otherwise.  */
 446
 447   struct type *vptr_basetype;
 448
 449   /* Field number of the virtual function table pointer in
 450      VPTR_BASETYPE.  If -1, we were unable to find the virtual
 451      function table pointer in initial symbol reading, and
 452      fill_in_vptr_fieldno should be called to find it if possible.
 453
 454      Unused if this type does not have virtual functions.  */
 455
 456   int vptr_fieldno;
 457
 458   /* Slot to point to additional language-specific fields of this type.  */
 459
 460   union type_specific
 461   {
 462     /* CPLUS_STUFF is for TYPE_CODE_STRUCT.  It is initialized to point to
 463        cplus_struct_default, a default static instance of a struct
 464        cplus_struct_type. */
 465
 466     struct cplus_struct_type *cplus_stuff;
 467
 468     /* FLOATFORMAT is for TYPE_CODE_FLT.  It is a pointer to the
 469        floatformat object that describes the floating-point value
 470        that resides within the type.  */
 471
 472     const struct floatformat *floatformat;
 473   } type_specific;
 474 };
 475
 476 /* A ``struct type'' describes a particular instance of a type, with
 477    some particular qualification.  */
 478 struct type
 479 {
 480   /* Type that is a pointer to this type.
 481      NULL if no such pointer-to type is known yet.
 482      The debugger may add the address of such a type
 483      if it has to construct one later.  */
 484
 485   struct type *pointer_type;
 486
 487   /* C++: also need a reference type.  */
 488
 489   struct type *reference_type;
 490
 491   /* Variant chain.  This points to a type that differs from this one only
 492      in qualifiers.  Currently, the possible qualifiers are const, volatile,
 493      code-space, and data-space.  The variants are linked in a circular
 494      ring and share MAIN_TYPE.  */
 495   struct type *chain;
 496
 497   /* Flags specific to this instance of the type, indicating where
 498      on the ring we are.  */
 499   int instance_flags;
 500
 501   /* Core type, shared by a group of qualified types.  */
 502   struct main_type *main_type;
 503 };
 504
 505 #define NULL_TYPE ((struct type *) 0)
 506
 507 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
 508    nodes.  */
 509
 510 struct cplus_struct_type
 511   {
 512     /* Number of base classes this type derives from.  The baseclasses are
 513        stored in the first N_BASECLASSES fields (i.e. the `fields' field of
 514        the struct type).  I think only the `type' field of such a field has
 515        any meaning.  */
 516
 517     short n_baseclasses;
 518
 519     /* Number of methods with unique names.  All overloaded methods with
 520        the same name count only once. */
 521
 522     short nfn_fields;
 523
 524     /* Number of methods described for this type, not including the
 525        methods that it derives from.  */
 526
 527     short nfn_fields_total;
 528
 529     /* The "declared_type" field contains a code saying how the
 530        user really declared this type, e.g., "class s", "union s",
 531        "struct s".
 532        The 3 above things come out from the C++ compiler looking like classes,
 533        but we keep track of the real declaration so we can give
 534        the correct information on "ptype". (Note: TEMPLATE may not
 535        belong in this list...)  */
 536
 537 #define DECLARED_TYPE_CLASS 0
 538 #define DECLARED_TYPE_UNION 1
 539 #define DECLARED_TYPE_STRUCT 2
 540 #define DECLARED_TYPE_TEMPLATE 3
 541     short declared_type;        /* One of the above codes */
 542
 543     /* For derived classes, the number of base classes is given by n_baseclasses
 544        and virtual_field_bits is a bit vector containing one bit per base class.
 545        If the base class is virtual, the corresponding bit will be set.
 546        I.E, given:
 547
 548        class A{};
 549        class B{};
 550        class C : public B, public virtual A {};
 551
 552        B is a baseclass of C; A is a virtual baseclass for C.
 553        This is a C++ 2.0 language feature. */
 554
 555     B_TYPE *virtual_field_bits;
 556
 557     /* For classes with private fields, the number of fields is given by
 558        nfields and private_field_bits is a bit vector containing one bit
 559        per field.
 560        If the field is private, the corresponding bit will be set. */
 561
 562     B_TYPE *private_field_bits;
 563
 564     /* For classes with protected fields, the number of fields is given by
 565        nfields and protected_field_bits is a bit vector containing one bit
 566        per field.
 567        If the field is private, the corresponding bit will be set. */
 568
 569     B_TYPE *protected_field_bits;
 570
 571     /* for classes with fields to be ignored, either this is optimized out
 572        or this field has length 0 */
 573
 574     B_TYPE *ignore_field_bits;
 575
 576     /* For classes, structures, and unions, a description of each field,
 577        which consists of an overloaded name, followed by the types of
 578        arguments that the method expects, and then the name after it
 579        has been renamed to make it distinct.
 580
 581        fn_fieldlists points to an array of nfn_fields of these. */
 582
 583     struct fn_fieldlist
 584       {
 585
 586         /* The overloaded name.  */
 587
 588         char *name;
 589
 590         /* The number of methods with this name.  */
 591
 592         int length;
 593
 594         /* The list of methods.  */
 595
 596         struct fn_field
 597           {
 598
 599             /* If is_stub is clear, this is the mangled name which we can
 600                look up to find the address of the method (FIXME: it would
 601                be cleaner to have a pointer to the struct symbol here
 602                instead).  */
 603
 604             /* If is_stub is set, this is the portion of the mangled
 605                name which specifies the arguments.  For example, "ii",
 606                if there are two int arguments, or "" if there are no
 607                arguments.  See gdb_mangle_name for the conversion from this
 608                format to the one used if is_stub is clear.  */
 609
 610             char *physname;
 611
 612             /* The function type for the method.
 613                (This comment used to say "The return value of the method",
 614                but that's wrong. The function type
 615                is expected here, i.e. something with TYPE_CODE_FUNC,
 616                and *not* the return-value type). */
 617
 618             struct type *type;
 619
 620             /* For virtual functions.
 621                First baseclass that defines this virtual function.   */
 622
 623             struct type *fcontext;
 624
 625             /* Attributes. */
 626
 627             unsigned int is_const:1;
 628             unsigned int is_volatile:1;
 629             unsigned int is_private:1;
 630             unsigned int is_protected:1;
 631             unsigned int is_public:1;
 632             unsigned int is_abstract:1;
 633             unsigned int is_static:1;
 634             unsigned int is_final:1;
 635             unsigned int is_synchronized:1;
 636             unsigned int is_native:1;
 637             unsigned int is_artificial:1;
 638
 639             /* A stub method only has some fields valid (but they are enough
 640                to reconstruct the rest of the fields).  */
 641             unsigned int is_stub:1;
 642
 643             /* C++ method that is inlined */
 644             unsigned int is_inlined:1;
 645
 646             /* Unused.  */
 647             unsigned int dummy:3;
 648
 649             /* Index into that baseclass's virtual function table,
 650                minus 2; else if static: VOFFSET_STATIC; else: 0.  */
 651
 652             unsigned int voffset:16;
 653
 654 #define VOFFSET_STATIC 1
 655
 656           }
 657          *fn_fields;
 658
 659       }
 660      *fn_fieldlists;
 661
 662     /* If this "struct type" describes a template, then it
 663      * has arguments. "template_args" points to an array of
 664      * template arg descriptors, of length "ntemplate_args".
 665      * The only real information in each of these template arg descriptors
 666      * is a name. "type" will typically just point to a "struct type" with
 667      * the placeholder TYPE_CODE_TEMPLATE_ARG type.
 668      */
 669     short ntemplate_args;
 670     struct template_arg
 671       {
 672         char *name;
 673         struct type *type;
 674       }
 675      *template_args;
 676
 677     /* If this "struct type" describes a template, it has a list
 678      * of instantiations. "instantiations" is a pointer to an array
 679      * of type's, one representing each instantiation. There
 680      * are "ninstantiations" elements in this array.
 681      */
 682     short ninstantiations;
 683     struct type **instantiations;
 684
 685     /* The following points to information relevant to the runtime model
 686      * of the compiler.
 687      * Currently being used only for HP's ANSI C++ compiler.
 688      * (This type may have to be changed/enhanced for other compilers.)
 689      *
 690      * RUNTIME_PTR is NULL if there is no runtime information (currently
 691      * this means the type was not compiled by HP aCC).
 692      *
 693      * Fields in structure pointed to:
 694      * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
 695      *
 696      * ->PRIMARY_BASE points to the first non-virtual base class that has
 697      * a virtual table.
 698      *
 699      * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
 700      * point to the type information for all virtual bases among this type's
 701      * ancestors.
 702      */
 703     struct runtime_info
 704       {
 705         short has_vtable;
 706         struct type *primary_base;
 707         struct type **virtual_base_list;
 708       }
 709      *runtime_ptr;
 710
 711     /* Pointer to information about enclosing scope, if this is a
 712      * local type.  If it is not a local type, this is NULL
 713      */
 714     struct local_type_info
 715       {
 716         char *file;
 717         int line;
 718       }
 719      *localtype_ptr;
 720   };
 721
 722 /* Struct used in computing virtual base list */
 723 struct vbase
 724   {
 725     struct type *vbasetype;     /* pointer to virtual base */
 726     struct vbase *next;         /* next in chain */
 727   };
 728
 729 /* Struct used for ranking a function for overload resolution */
 730 struct badness_vector
 731   {
 732     int length;
 733     int *rank;
 734   };
 735
 736 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
 737    this shared static structure. */
 738
 739 extern const struct cplus_struct_type cplus_struct_default;
 740
 741 extern void allocate_cplus_struct_type (struct type *);
 742
 743 #define INIT_CPLUS_SPECIFIC(type) \
 744   (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
 745 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
 746 #define HAVE_CPLUS_STRUCT(type) \
 747   (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
 748
 749 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
 750 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
 751 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
 752 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
 753 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
 754 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
 755 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
 756 #define TYPE_CHAIN(thistype) (thistype)->chain
 757 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
 758    But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
 759    so you only have to call check_typedef once.  Since allocate_value
 760    calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe.  */
 761 #define TYPE_LENGTH(thistype) TYPE_MAIN_TYPE(thistype)->length
 762 #define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile
 763 #define TYPE_FLAGS(thistype) TYPE_MAIN_TYPE(thistype)->flags
 764 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
 765    type, you need to do TYPE_CODE (check_type (this_type)). */
 766 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
 767 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
 768 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields
 769 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
 770 #define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
 771
 772 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
 773 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
 774 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
 775
 776 /* Moto-specific stuff for FORTRAN arrays */
 777
 778 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) \
 779         TYPE_MAIN_TYPE(thistype)->upper_bound_type
 780 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) \
 781         TYPE_MAIN_TYPE(thistype)->lower_bound_type
 782
 783 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
 784    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
 785
 786 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
 787    (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
 788
 789 /* C++ */
 790
 791 #define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
 792 #define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
 793 #define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
 794 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
 795 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
 796 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
 797 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
 798 #define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
 799 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
 800 #define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
 801 #define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
 802 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
 803 #define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type
 804 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 805 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name
 806 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
 807 #define BASETYPE_VIA_PUBLIC(thistype, index) \
 808   ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
 809
 810 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
 811   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 812     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
 813
 814 #define FIELD_TYPE(thisfld) ((thisfld).type)
 815 #define FIELD_NAME(thisfld) ((thisfld).name)
 816 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
 817 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
 818 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
 819 #define FIELD_STATIC_KIND(thisfld) ((thisfld).static_kind)
 820 #define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
 821 #define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
 822 #define SET_FIELD_PHYSNAME(thisfld, name) \
 823   ((thisfld).static_kind = 1, FIELD_PHYSNAME(thisfld) = (name))
 824 #define SET_FIELD_PHYSADDR(thisfld, name) \
 825   ((thisfld).static_kind = 2, FIELD_PHYSADDR(thisfld) = (name))
 826 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n]
 827 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
 828 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
 829 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
 830 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
 831 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
 832 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
 833 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
 834 #define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
 835
 836 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
 837   TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
 838 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
 839   TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
 840 #define TYPE_FIELD_IGNORE_BITS(thistype) \
 841   TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
 842 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
 843   TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
 844 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
 845   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
 846 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
 847   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
 848 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
 849   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
 850 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
 851   B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
 852 #define TYPE_FIELD_PRIVATE(thistype, n) \
 853   (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
 854     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
 855 #define TYPE_FIELD_PROTECTED(thistype, n) \
 856   (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
 857     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
 858 #define TYPE_FIELD_IGNORE(thistype, n) \
 859   (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
 860     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
 861 #define TYPE_FIELD_VIRTUAL(thistype, n) \
 862   (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
 863     : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
 864
 865 #define TYPE_FIELD_STATIC(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].static_kind != 0)
 866 #define TYPE_FIELD_STATIC_KIND(thistype, n) TYPE_MAIN_TYPE (thistype)->fields[n].static_kind
 867 #define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].static_kind == 2)
 868 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
 869 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
 870
 871 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
 872 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
 873 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
 874 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
 875 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
 876
 877 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
 878 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
 879 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
 880 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
 881 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
 882 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
 883 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
 884 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
 885 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
 886 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
 887 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
 888 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
 889 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
 890 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
 891 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
 892 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
 893 #define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
 894 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
 895 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
 896 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
 897 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
 898
 899 #define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
 900 #define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
 901 #define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
 902 #define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
 903 #define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
 904
 905 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
 906 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
 907 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
 908
 909 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) ||        \
 910                                    (TYPE_CODE (thistype) == TYPE_CODE_UNION))        && \
 911                                   (TYPE_NFIELDS (thistype) == 0)                     && \
 912                                   (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
 913
 914
 915
 916 /* Implicit sizes */
 917 extern struct type *builtin_type_void;
 918 extern struct type *builtin_type_char;
 919 extern struct type *builtin_type_short;
 920 extern struct type *builtin_type_int;
 921 extern struct type *builtin_type_long;
 922 extern struct type *builtin_type_signed_char;
 923 extern struct type *builtin_type_unsigned_char;
 924 extern struct type *builtin_type_unsigned_short;
 925 extern struct type *builtin_type_unsigned_int;
 926 extern struct type *builtin_type_unsigned_long;
 927 extern struct type *builtin_type_float;
 928 extern struct type *builtin_type_double;
 929 extern struct type *builtin_type_long_double;
 930 extern struct type *builtin_type_complex;
 931 extern struct type *builtin_type_double_complex;
 932 extern struct type *builtin_type_string;
 933 extern struct type *builtin_type_bool;
 934
 935 /* Address/pointer types: */
 936 /* (C) Language `pointer to data' type.  Some target platforms use an
 937    implicitly {sign,zero} -extended 32 bit C language pointer on a 64
 938    bit ISA.  */
 939 extern struct type *builtin_type_void_data_ptr;
 940
 941 /* (C) Language `pointer to function returning void' type.  Since
 942    ANSI, C standards have explicitly said that pointers to functions
 943    and pointers to data are not interconvertible --- that is, you
 944    can't cast a function pointer to void * and back, and expect to get
 945    the same value.  However, all function pointer types are
 946    interconvertible, so void (*) () can server as a generic function
 947    pointer.  */
 948 extern struct type *builtin_type_void_func_ptr;
 949
 950 /* The target CPU's address type.  This is the ISA address size. */
 951 extern struct type *builtin_type_CORE_ADDR;
 952 /* The symbol table address type.  Some object file formats have a 32
 953    bit address type even though the TARGET has a 64 bit pointer type
 954    (cf MIPS). */
 955 extern struct type *builtin_type_bfd_vma;
 956
 957 /* Explicit sizes - see C9X <intypes.h> for naming scheme */
 958 extern struct type *builtin_type_int8;
 959 extern struct type *builtin_type_uint8;
 960 extern struct type *builtin_type_int16;
 961 extern struct type *builtin_type_uint16;
 962 extern struct type *builtin_type_int32;
 963 extern struct type *builtin_type_uint32;
 964 extern struct type *builtin_type_int64;
 965 extern struct type *builtin_type_uint64;
 966 extern struct type *builtin_type_int128;
 967 extern struct type *builtin_type_uint128;
 968
 969 /* SIMD types.  We inherit these names from GCC.  */
 970 extern struct type *builtin_type_v4sf;
 971 extern struct type *builtin_type_v4si;
 972 extern struct type *builtin_type_v16qi;
 973 extern struct type *builtin_type_v8qi;
 974 extern struct type *builtin_type_v8hi;
 975 extern struct type *builtin_type_v4hi;
 976 extern struct type *builtin_type_v2si;
 977
 978 /* Type for 64 bit vectors. */
 979 extern struct type *builtin_type_vec64;
 980 extern struct type *builtin_type_vec64i;
 981
 982 /* Type for 128 bit vectors. */
 983 extern struct type *builtin_type_vec128;
 984 extern struct type *builtin_type_vec128i;
 985
 986 /* Explicit floating-point formats.  See "floatformat.h".  */
 987 extern struct type *builtin_type_ieee_single_big;
 988 extern struct type *builtin_type_ieee_single_little;
 989 extern struct type *builtin_type_ieee_double_big;
 990 extern struct type *builtin_type_ieee_double_little;
 991 extern struct type *builtin_type_ieee_double_littlebyte_bigword;
 992 extern struct type *builtin_type_i387_ext;
 993 extern struct type *builtin_type_m68881_ext;
 994 extern struct type *builtin_type_i960_ext;
 995 extern struct type *builtin_type_m88110_ext;
 996 extern struct type *builtin_type_m88110_harris_ext;
 997 extern struct type *builtin_type_arm_ext_big;
 998 extern struct type *builtin_type_arm_ext_littlebyte_bigword;
 999 extern struct type *builtin_type_ia64_spill_big;
1000 extern struct type *builtin_type_ia64_spill_little;
1001 extern struct type *builtin_type_ia64_quad_big;
1002 extern struct type *builtin_type_ia64_quad_little;
1003
1004 /* We use this for the '/c' print format, because builtin_type_char is
1005    just a one-byte integral type, which languages less laid back than
1006    C will print as ... well, a one-byte integral type.  */
1007 extern struct type *builtin_type_true_char;
1008
1009 /* This type represents a type that was unrecognized in symbol
1010    read-in.  */
1011
1012 extern struct type *builtin_type_error;
1013
1014 extern struct type *builtin_type_long_long;
1015 extern struct type *builtin_type_unsigned_long_long;
1016
1017 /* Modula-2 types */
1018
1019 extern struct type *builtin_type_m2_char;
1020 extern struct type *builtin_type_m2_int;
1021 extern struct type *builtin_type_m2_card;
1022 extern struct type *builtin_type_m2_real;
1023 extern struct type *builtin_type_m2_bool;
1024
1025 /* Fortran (F77) types */
1026
1027 extern struct type *builtin_type_f_character;
1028 extern struct type *builtin_type_f_integer;
1029 extern struct type *builtin_type_f_integer_s2;
1030 extern struct type *builtin_type_f_logical;
1031 extern struct type *builtin_type_f_logical_s1;
1032 extern struct type *builtin_type_f_logical_s2;
1033 extern struct type *builtin_type_f_real;
1034 extern struct type *builtin_type_f_real_s8;
1035 extern struct type *builtin_type_f_real_s16;
1036 extern struct type *builtin_type_f_complex_s8;
1037 extern struct type *builtin_type_f_complex_s16;
1038 extern struct type *builtin_type_f_complex_s32;
1039 extern struct type *builtin_type_f_void;
1040
1041 /* RTTI for C++ */
1042 /* extern struct type *builtin_type_cxx_typeinfo; */
1043
1044 /* Maximum and minimum values of built-in types */
1045
1046 #define MAX_OF_TYPE(t)  \
1047    (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1048     : MAX_OF_SIZE(TYPE_LENGTH(t)))
1049
1050 #define MIN_OF_TYPE(t)  \
1051    (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1052     : MIN_OF_SIZE(TYPE_LENGTH(t)))
1053
1054 /* Allocate space for storing data associated with a particular type.
1055    We ensure that the space is allocated using the same mechanism that
1056    was used to allocate the space for the type structure itself.  I.E.
1057    if the type is on an objfile's type_obstack, then the space for data
1058    associated with that type will also be allocated on the type_obstack.
1059    If the type is not associated with any particular objfile (such as
1060    builtin types), then the data space will be allocated with xmalloc,
1061    the same as for the type structure. */
1062
1063 #define TYPE_ALLOC(t,size)  \
1064    (TYPE_OBJFILE (t) != NULL  \
1065     ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
1066     : xmalloc (size))
1067
1068 extern struct type *alloc_type (struct objfile *);
1069
1070 extern struct type *init_type (enum type_code, int, int, char *,
1071                                struct objfile *);
1072
1073 /* Helper functions to construct a struct or record type.  An
1074    initially empty type is created using init_composite_type().
1075    Fields are then added using append_struct_type_field().  A union
1076    type has its size set to the largest field.  A struct type has each
1077    field packed against the previous.  */
1078
1079 extern struct type *init_composite_type (char *name, enum type_code code);
1080 extern void append_composite_type_field (struct type *t, char *name,
1081                                          struct type *field);
1082
1083 extern struct type *lookup_reference_type (struct type *);
1084
1085 extern struct type *make_reference_type (struct type *, struct type **);
1086
1087 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1088
1089 extern void replace_type (struct type *, struct type *);
1090
1091 extern int address_space_name_to_int (char *);
1092
1093 extern const char *address_space_int_to_name (int);
1094
1095 extern struct type *make_type_with_address_space (struct type *type,
1096                                                   int space_identifier);
1097
1098 extern struct type *lookup_member_type (struct type *, struct type *);
1099
1100 extern void
1101 smash_to_method_type (struct type *type, struct type *domain,
1102                       struct type *to_type, struct field *args,
1103                       int nargs, int varargs);
1104
1105 extern void smash_to_member_type (struct type *, struct type *, struct type *);
1106
1107 extern struct type *allocate_stub_method (struct type *);
1108
1109 extern char *type_name_no_tag (const struct type *);
1110
1111 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
1112
1113 extern struct type *make_pointer_type (struct type *, struct type **);
1114
1115 extern struct type *lookup_pointer_type (struct type *);
1116
1117 extern struct type *make_function_type (struct type *, struct type **);
1118
1119 extern struct type *lookup_function_type (struct type *);
1120
1121 extern struct type *create_range_type (struct type *, struct type *, int,
1122                                        int);
1123
1124 extern struct type *create_array_type (struct type *, struct type *,
1125                                        struct type *);
1126
1127 extern struct type *create_string_type (struct type *, struct type *);
1128
1129 extern struct type *create_set_type (struct type *, struct type *);
1130
1131 extern struct type *lookup_unsigned_typename (char *);
1132
1133 extern struct type *lookup_signed_typename (char *);
1134
1135 extern struct type *check_typedef (struct type *);
1136
1137 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1138
1139 extern void check_stub_method_group (struct type *, int);
1140
1141 extern struct type *lookup_primitive_typename (char *);
1142
1143 extern char *gdb_mangle_name (struct type *, int, int);
1144
1145 extern struct type *builtin_type (char **);
1146
1147 extern struct type *lookup_typename (char *, struct block *, int);
1148
1149 extern struct type *lookup_template_type (char *, struct type *,
1150                                           struct block *);
1151
1152 extern struct type *lookup_fundamental_type (struct objfile *, int);
1153
1154 extern void fill_in_vptr_fieldno (struct type *);
1155
1156 extern int get_destructor_fn_field (struct type *, int *, int *);
1157
1158 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1159
1160 extern int is_ancestor (struct type *, struct type *);
1161
1162 extern int has_vtable (struct type *);
1163
1164 extern struct type *primary_base_class (struct type *);
1165
1166 extern struct type **virtual_base_list (struct type *);
1167
1168 extern int virtual_base_list_length (struct type *);
1169 extern int virtual_base_list_length_skip_primaries (struct type *);
1170
1171 extern int virtual_base_index (struct type *, struct type *);
1172 extern int virtual_base_index_skip_primaries (struct type *, struct type *);
1173
1174
1175 extern int class_index_in_primary_list (struct type *);
1176
1177 extern int count_virtual_fns (struct type *);
1178
1179 /* Constants for HP/Taligent ANSI C++ runtime model */
1180
1181 /* Where virtual function entries begin in the
1182  * virtual table, in the non-RRBC vtable format.
1183  * First 4 are the metavtable pointer, top offset,
1184  * typeinfo pointer, and dup base info pointer */
1185 #define HP_ACC_VFUNC_START        4
1186
1187 /* (Negative) Offset where virtual base offset entries begin
1188  * in the virtual table. Skips over metavtable pointer and
1189  * the self-offset entry.
1190  * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1191  * appear before the address point of the vtable (the slot
1192  * pointed to by the object's vtable pointer), i.e. at lower
1193  * addresses than the vtable pointer. */
1194 #define HP_ACC_VBASE_START        2
1195
1196 /* (Positive) Offset where the pointer to the typeinfo
1197  * object is present in the virtual table */
1198 #define HP_ACC_TYPEINFO_OFFSET    2
1199
1200 /* (Positive) Offset where the ``top offset'' entry of
1201  * the virtual table is */
1202 #define HP_ACC_TOP_OFFSET_OFFSET  1
1203
1204 /* Overload resolution */
1205
1206 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1207
1208 /* Badness if parameter list length doesn't match arg list length */
1209 #define LENGTH_MISMATCH_BADNESS      100
1210 /* Dummy badness value for nonexistent parameter positions */
1211 #define TOO_FEW_PARAMS_BADNESS       100
1212 /* Badness if no conversion among types */
1213 #define INCOMPATIBLE_TYPE_BADNESS    100
1214 /* Badness of coercing large integer to smaller size */
1215 #define INTEGER_COERCION_BADNESS     100
1216 /* Badness of coercing large floating type to smaller size */
1217 #define FLOAT_COERCION_BADNESS       100
1218
1219 /* Badness of integral promotion */
1220 #define INTEGER_PROMOTION_BADNESS      1
1221 /* Badness of floating promotion */
1222 #define FLOAT_PROMOTION_BADNESS        1
1223 /* Badness of integral conversion */
1224 #define INTEGER_CONVERSION_BADNESS     2
1225 /* Badness of floating conversion */
1226 #define FLOAT_CONVERSION_BADNESS       2
1227 /* Badness of integer<->floating conversions */
1228 #define INT_FLOAT_CONVERSION_BADNESS   2
1229 /* Badness of converting to a boolean */
1230 #define BOOLEAN_CONVERSION_BADNESS     2
1231 /* Badness of pointer conversion */
1232 #define POINTER_CONVERSION_BADNESS     2
1233 /* Badness of conversion of pointer to void pointer */
1234 #define VOID_PTR_CONVERSION_BADNESS    2
1235 /* Badness of converting derived to base class */
1236 #define BASE_CONVERSION_BADNESS        2
1237 /* Badness of converting from non-reference to reference */
1238 #define REFERENCE_CONVERSION_BADNESS   2
1239
1240 /* Non-standard conversions allowed by the debugger */
1241 /* Converting a pointer to an int is usually OK */
1242 #define NS_POINTER_CONVERSION_BADNESS 10
1243
1244
1245 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1246
1247 extern struct badness_vector *rank_function (struct type **, int,
1248                                              struct type **, int);
1249
1250 extern int rank_one_type (struct type *, struct type *);
1251
1252 extern void recursive_dump_type (struct type *, int);
1253
1254 /* printcmd.c */
1255
1256 extern void print_scalar_formatted (char *, struct type *, int, int,
1257                                     struct ui_file *);
1258
1259 extern int can_dereference (struct type *);
1260
1261 extern int is_integral_type (struct type *);
1262
1263 extern void maintenance_print_type (char *, int);
1264
1265 #endif /* GDBTYPES_H */