1 /* Internal type definitions for GDB.
3 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 2002, 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
6 Contributed by Cygnus Support, using pieces from other GDB modules.
8 This file is part of GDB.
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 3 of the License, or
13 (at your option) any later version.
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.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #if !defined (GDBTYPES_H)
28 /* Forward declarations for prototypes. */
31 struct value_print_options;
33 /* Some macros for char-based bitfields. */
35 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
36 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
37 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
38 #define B_TYPE unsigned char
39 #define B_BYTES(x) ( 1 + ((x)>>3) )
40 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
42 /* Different kinds of data types are distinguished by the `code' field. */
46 TYPE_CODE_UNDEF, /* Not used; catches errors */
47 TYPE_CODE_PTR, /* Pointer type */
49 /* Array type with lower & upper bounds.
51 Regardless of the language, GDB represents multidimensional
52 array types the way C does: as arrays of arrays. So an
53 instance of a GDB array type T can always be seen as a series
54 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
57 Row-major languages like C lay out multi-dimensional arrays so
58 that incrementing the rightmost index in a subscripting
59 expression results in the smallest change in the address of the
60 element referred to. Column-major languages like Fortran lay
61 them out so that incrementing the leftmost index results in the
64 This means that, in column-major languages, working our way
65 from type to target type corresponds to working through indices
66 from right to left, not left to right. */
69 TYPE_CODE_STRUCT, /* C struct or Pascal record */
70 TYPE_CODE_UNION, /* C union or Pascal variant part */
71 TYPE_CODE_ENUM, /* Enumeration type */
72 TYPE_CODE_FLAGS, /* Bit flags type */
73 TYPE_CODE_FUNC, /* Function type */
74 TYPE_CODE_INT, /* Integer type */
76 /* Floating type. This is *NOT* a complex type. Beware, there are parts
77 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
80 /* Void type. The length field specifies the length (probably always
81 one) which is used in pointer arithmetic involving pointers to
82 this type, but actually dereferencing such a pointer is invalid;
83 a void type has no length and no actual representation in memory
84 or registers. A pointer to a void type is a generic pointer. */
87 TYPE_CODE_SET, /* Pascal sets */
88 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
90 /* A string type which is like an array of character but prints
91 differently (at least for (the deleted) CHILL). It does not
92 contain a length field as Pascal strings (for many Pascals,
93 anyway) do; if we want to deal with such strings, we should use
97 /* String of bits; like TYPE_CODE_SET but prints differently (at
98 least for (the deleted) CHILL). */
101 /* Unknown type. The length field is valid if we were able to
102 deduce that much about the type, or 0 if we don't even know that. */
106 TYPE_CODE_METHOD, /* Method type */
108 /* Pointer-to-member-function type. This describes how to access a
109 particular member function of a class (possibly a virtual
110 member function). The representation may vary between different
114 /* Pointer-to-member type. This is the offset within a class to some
115 particular data member. The only currently supported representation
116 uses an unbiased offset, with -1 representing NULL; this is used
117 by the Itanium C++ ABI (used by GCC on all platforms). */
120 TYPE_CODE_REF, /* C++ Reference types */
122 TYPE_CODE_CHAR, /* *real* character type */
124 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
125 (e.g. FORTRAN "logical" used as unsigned int). */
129 TYPE_CODE_COMPLEX, /* Complex float */
132 TYPE_CODE_TEMPLATE, /* C++ template */
133 TYPE_CODE_TEMPLATE_ARG, /* C++ template arg */
135 TYPE_CODE_NAMESPACE, /* C++ namespace. */
137 TYPE_CODE_DECFLOAT /* Decimal floating point. */
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. */
146 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
148 /* Some constants representing each bit field in the main_type. See
149 the bit-field-specific macros, below, for documentation of each
150 constant in this enum. These enum values are only used with
151 init_type. Note that the values are chosen not to conflict with
152 type_instance_flag_value; this lets init_type error-check its
157 TYPE_FLAG_UNSIGNED = (1 << 6),
158 TYPE_FLAG_NOSIGN = (1 << 7),
159 TYPE_FLAG_STUB = (1 << 8),
160 TYPE_FLAG_TARGET_STUB = (1 << 9),
161 TYPE_FLAG_STATIC = (1 << 10),
162 TYPE_FLAG_PROTOTYPED = (1 << 11),
163 TYPE_FLAG_INCOMPLETE = (1 << 12),
164 TYPE_FLAG_VARARGS = (1 << 13),
165 TYPE_FLAG_VECTOR = (1 << 14),
166 TYPE_FLAG_FIXED_INSTANCE = (1 << 15),
167 TYPE_FLAG_STUB_SUPPORTED = (1 << 16),
168 TYPE_FLAG_NOTTEXT = (1 << 17),
170 /* Used for error-checking. */
171 TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
174 /* Some bits for the type's instance_flags word. See the macros below
175 for documentation on each bit. Note that if you add a value here,
176 you must update the enum type_flag_value as well. */
177 enum type_instance_flag_value
179 TYPE_INSTANCE_FLAG_CONST = (1 << 0),
180 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
181 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
182 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
183 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
184 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5)
187 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
188 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
190 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
192 /* No sign for this type. In C++, "char", "signed char", and "unsigned
193 char" are distinct types; so we need an extra flag to indicate the
194 absence of a sign! */
196 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
198 /* This appears in a type's flags word if it is a stub type (e.g., if
199 someone referenced a type that wasn't defined in a source file
200 via (struct sir_not_appearing_in_this_film *)). */
202 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
204 /* The target type of this type is a stub type, and this type needs to
205 be updated if it gets un-stubbed in check_typedef.
206 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
207 gets set based on the TYPE_LENGTH of the target type.
208 Also, set for TYPE_CODE_TYPEDEF. */
210 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
212 /* Static type. If this is set, the corresponding type had
214 * Note: This may be unnecessary, since static data members
215 * are indicated by other means (bitpos == -1)
218 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
220 /* This is a function type which appears to have a prototype. We need this
221 for function calls in order to tell us if it's necessary to coerce the args,
222 or to just do the standard conversions. This is used with a short field. */
224 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
226 /* This flag is used to indicate that processing for this type
229 (Mostly intended for HP platforms, where class methods, for
230 instance, can be encountered before their classes in the debug
231 info; the incomplete type has to be marked so that the class and
232 the method can be assigned correct types.) */
234 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
236 /* FIXME drow/2002-06-03: Only used for methods, but applies as well
239 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
241 /* Identify a vector type. Gcc is handling this by adding an extra
242 attribute to the array type. We slurp that in as a new flag of a
243 type. This is used only in dwarf2read.c. */
244 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
246 /* The debugging formats (especially STABS) do not contain enough information
247 to represent all Ada types---especially those whose size depends on
248 dynamic quantities. Therefore, the GNAT Ada compiler includes
249 extra information in the form of additional type definitions
250 connected by naming conventions. This flag indicates that the
251 type is an ordinary (unencoded) GDB type that has been created from
252 the necessary run-time information, and does not need further
253 interpretation. Optionally marks ordinary, fixed-size GDB type. */
255 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
257 /* This debug target supports TYPE_STUB(t). In the unsupported case we have to
258 rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE ().
259 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only guessed
260 the TYPE_STUB(t) value (see dwarfread.c). */
262 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
264 /* Not textual. By default, GDB treats all single byte integers as
265 characters (or elements of strings) unless this flag is set. */
267 #define TYPE_NOTTEXT(t) (TYPE_MAIN_TYPE (t)->flag_nottext)
269 /* Constant type. If this is set, the corresponding type has a
273 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
275 /* Volatile type. If this is set, the corresponding type has a
279 #define TYPE_VOLATILE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
281 /* Instruction-space delimited type. This is for Harvard architectures
282 which have separate instruction and data address spaces (and perhaps
285 GDB usually defines a flat address space that is a superset of the
286 architecture's two (or more) address spaces, but this is an extension
287 of the architecture's model.
289 If TYPE_FLAG_INST is set, an object of the corresponding type
290 resides in instruction memory, even if its address (in the extended
291 flat address space) does not reflect this.
293 Similarly, if TYPE_FLAG_DATA is set, then an object of the
294 corresponding type resides in the data memory space, even if
295 this is not indicated by its (flat address space) address.
297 If neither flag is set, the default space for functions / methods
298 is instruction space, and for data objects is data memory. */
300 #define TYPE_CODE_SPACE(t) \
301 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
303 #define TYPE_DATA_SPACE(t) \
304 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
306 /* Address class flags. Some environments provide for pointers whose
307 size is different from that of a normal pointer or address types
308 where the bits are interpreted differently than normal addresses. The
309 TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific
310 ways to represent these different types of address classes. */
311 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
312 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
313 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
314 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
315 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
316 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
317 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
318 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
320 /* Determine which field of the union main_type.fields[x].loc is used. */
324 FIELD_LOC_KIND_BITPOS, /* bitpos */
325 FIELD_LOC_KIND_PHYSADDR, /* physaddr */
326 FIELD_LOC_KIND_PHYSNAME, /* physname */
327 FIELD_LOC_KIND_DWARF_BLOCK /* dwarf_block */
330 /* This structure is space-critical.
331 Its layout has been tweaked to reduce the space used. */
335 /* Code for kind of type */
337 ENUM_BITFIELD(type_code) code : 8;
339 /* Flags about this type. These fields appear at this location
340 because they packs nicely here. See the TYPE_* macros for
341 documentation about these fields. */
343 unsigned int flag_unsigned : 1;
344 unsigned int flag_nosign : 1;
345 unsigned int flag_stub : 1;
346 unsigned int flag_target_stub : 1;
347 unsigned int flag_static : 1;
348 unsigned int flag_prototyped : 1;
349 unsigned int flag_incomplete : 1;
350 unsigned int flag_varargs : 1;
351 unsigned int flag_vector : 1;
352 unsigned int flag_stub_supported : 1;
353 unsigned int flag_nottext : 1;
354 unsigned int flag_fixed_instance : 1;
356 /* Number of fields described for this type. This field appears at
357 this location because it packs nicely here. */
361 /* Field number of the virtual function table pointer in
362 VPTR_BASETYPE. If -1, we were unable to find the virtual
363 function table pointer in initial symbol reading, and
364 get_vptr_fieldno should be called to find it if possible.
365 get_vptr_fieldno will update this field if possible.
366 Otherwise the value is left at -1.
368 Unused if this type does not have virtual functions.
370 This field appears at this location because it packs nicely here. */
374 /* Name of this type, or NULL if none.
376 This is used for printing only, except by poorly designed C++ code.
377 For looking up a name, look for a symbol in the VAR_DOMAIN. */
381 /* Tag name for this type, or NULL if none. This means that the
382 name of the type consists of a keyword followed by the tag name.
383 Which keyword is determined by the type code ("struct" for
384 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
387 This is used for printing only, except by poorly designed C++ code.
388 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
389 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
390 the name to use to look for definitions in other files. */
394 /* Every type is now associated with a particular objfile, and the
395 type is allocated on the objfile_obstack for that objfile. One problem
396 however, is that there are times when gdb allocates new types while
397 it is not in the process of reading symbols from a particular objfile.
398 Fortunately, these happen when the type being created is a derived
399 type of an existing type, such as in lookup_pointer_type(). So
400 we can just allocate the new type using the same objfile as the
401 existing type, but to do this we need a backpointer to the objfile
402 from the existing type. Yes this is somewhat ugly, but without
403 major overhaul of the internal type system, it can't be avoided
406 struct objfile *objfile;
408 /* For a pointer type, describes the type of object pointed to.
409 For an array type, describes the type of the elements.
410 For a function or method type, describes the type of the return value.
411 For a range type, describes the type of the full range.
412 For a complex type, describes the type of each coordinate.
415 struct type *target_type;
417 /* For structure and union types, a description of each field.
418 For set and pascal array types, there is one "field",
419 whose type is the domain type of the set or array.
420 For range types, there are two "fields",
421 the minimum and maximum values (both inclusive).
422 For enum types, each possible value is described by one "field".
423 For a function or method type, a "field" for each parameter.
424 For C++ classes, there is one field for each base class (if it is
425 a derived class) plus one field for each class data member. Member
426 functions are recorded elsewhere.
428 Using a pointer to a separate array of fields
429 allows all types to have the same size, which is useful
430 because we can allocate the space for a type before
431 we know what to put in it. */
437 /* Position of this field, counting in bits from start of
438 containing structure.
439 For gdbarch_bits_big_endian=1 targets, it is the bit offset to the MSB.
440 For gdbarch_bits_big_endian=0 targets, it is the bit offset to the LSB.
441 For a range bound or enum value, this is the value itself. */
445 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
446 is the location (in the target) of the static field.
447 Otherwise, physname is the mangled label of the static field. */
452 /* The field location can be computed by evaluating the following DWARF
453 block. This can be used in Fortran variable-length arrays, for
456 struct dwarf2_locexpr_baton *dwarf_block;
460 /* For a function or member type, this is 1 if the argument is marked
461 artificial. Artificial arguments should not be shown to the
462 user. For TYPE_CODE_RANGE it is set if the specific bound is not
464 unsigned int artificial : 1;
466 /* Discriminant for union field_location. */
467 ENUM_BITFIELD(field_loc_kind) loc_kind : 2;
469 /* Size of this field, in bits, or zero if not packed.
470 For an unpacked field, the field's type's length
471 says how many bytes the field occupies. */
473 unsigned int bitsize : 29;
475 /* In a struct or union type, type of this field.
476 In a function or member type, type of this argument.
477 In an array type, the domain-type of the array. */
481 /* Name of field, value or argument.
482 NULL for range bounds, array domains, and member function
489 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
490 is the base class which defined the virtual function table pointer.
492 For types that are pointer to member types (TYPE_CODE_METHODPTR,
493 TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer
496 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
497 type that contains the method.
501 struct type *vptr_basetype;
503 /* Slot to point to additional language-specific fields of this type. */
507 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to
508 cplus_struct_default, a default static instance of a struct
509 cplus_struct_type. */
511 struct cplus_struct_type *cplus_stuff;
513 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
514 floatformat objects that describe the floating-point value
515 that resides within the type. The first is for big endian
516 targets and the second is for little endian targets. */
518 const struct floatformat **floatformat;
520 /* For TYPE_CODE_FUNC types, the calling convention for targets
521 supporting multiple ABIs. Right now this is only fetched from
522 the Dwarf-2 DW_AT_calling_convention attribute. */
523 unsigned calling_convention;
527 /* A ``struct type'' describes a particular instance of a type, with
528 some particular qualification. */
531 /* Type that is a pointer to this type.
532 NULL if no such pointer-to type is known yet.
533 The debugger may add the address of such a type
534 if it has to construct one later. */
536 struct type *pointer_type;
538 /* C++: also need a reference type. */
540 struct type *reference_type;
542 /* Variant chain. This points to a type that differs from this one only
543 in qualifiers and length. Currently, the possible qualifiers are
544 const, volatile, code-space, data-space, and address class. The
545 length may differ only when one of the address class flags are set.
546 The variants are linked in a circular ring and share MAIN_TYPE. */
549 /* Flags specific to this instance of the type, indicating where
550 on the ring we are. */
553 /* Length of storage for a value of this type. This is what
554 sizeof(type) would return; use it for address arithmetic,
555 memory reads and writes, etc. This size includes padding. For
556 example, an i386 extended-precision floating point value really
557 only occupies ten bytes, but most ABI's declare its size to be
558 12 bytes, to preserve alignment. A `struct type' representing
559 such a floating-point type would have a `length' value of 12,
560 even though the last two bytes are unused.
562 There's a bit of a host/target mess here, if you're concerned
563 about machines whose bytes aren't eight bits long, or who don't
564 have byte-addressed memory. Various places pass this to memcpy
565 and such, meaning it must be in units of host bytes. Various
566 other places expect they can calculate addresses by adding it
567 and such, meaning it must be in units of target bytes. For
568 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
569 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
571 One fix would be to make this field in bits (requiring that it
572 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
573 the other choice would be to make it consistently in units of
574 HOST_CHAR_BIT. However, this would still fail to address
575 machines based on a ternary or decimal representation. */
579 /* Core type, shared by a group of qualified types. */
580 struct main_type *main_type;
583 #define NULL_TYPE ((struct type *) 0)
585 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
588 struct cplus_struct_type
590 /* Number of base classes this type derives from. The baseclasses are
591 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
592 the struct type). I think only the `type' field of such a field has
597 /* Number of methods with unique names. All overloaded methods with
598 the same name count only once. */
602 /* Number of methods described for this type, not including the
603 methods that it derives from. */
605 short nfn_fields_total;
607 /* The "declared_type" field contains a code saying how the
608 user really declared this type, e.g., "class s", "union s",
610 The 3 above things come out from the C++ compiler looking like classes,
611 but we keep track of the real declaration so we can give
612 the correct information on "ptype". (Note: TEMPLATE may not
613 belong in this list...) */
615 #define DECLARED_TYPE_CLASS 0
616 #define DECLARED_TYPE_UNION 1
617 #define DECLARED_TYPE_STRUCT 2
618 #define DECLARED_TYPE_TEMPLATE 3
619 short declared_type; /* One of the above codes */
621 /* For derived classes, the number of base classes is given by n_baseclasses
622 and virtual_field_bits is a bit vector containing one bit per base class.
623 If the base class is virtual, the corresponding bit will be set.
628 class C : public B, public virtual A {};
630 B is a baseclass of C; A is a virtual baseclass for C.
631 This is a C++ 2.0 language feature. */
633 B_TYPE *virtual_field_bits;
635 /* For classes with private fields, the number of fields is given by
636 nfields and private_field_bits is a bit vector containing one bit
638 If the field is private, the corresponding bit will be set. */
640 B_TYPE *private_field_bits;
642 /* For classes with protected fields, the number of fields is given by
643 nfields and protected_field_bits is a bit vector containing one bit
645 If the field is private, the corresponding bit will be set. */
647 B_TYPE *protected_field_bits;
649 /* for classes with fields to be ignored, either this is optimized out
650 or this field has length 0 */
652 B_TYPE *ignore_field_bits;
654 /* For classes, structures, and unions, a description of each field,
655 which consists of an overloaded name, followed by the types of
656 arguments that the method expects, and then the name after it
657 has been renamed to make it distinct.
659 fn_fieldlists points to an array of nfn_fields of these. */
664 /* The overloaded name. */
668 /* The number of methods with this name. */
672 /* The list of methods. */
677 /* If is_stub is clear, this is the mangled name which we can
678 look up to find the address of the method (FIXME: it would
679 be cleaner to have a pointer to the struct symbol here
682 /* If is_stub is set, this is the portion of the mangled
683 name which specifies the arguments. For example, "ii",
684 if there are two int arguments, or "" if there are no
685 arguments. See gdb_mangle_name for the conversion from this
686 format to the one used if is_stub is clear. */
690 /* The function type for the method.
691 (This comment used to say "The return value of the method",
692 but that's wrong. The function type
693 is expected here, i.e. something with TYPE_CODE_FUNC,
694 and *not* the return-value type). */
698 /* For virtual functions.
699 First baseclass that defines this virtual function. */
701 struct type *fcontext;
705 unsigned int is_const:1;
706 unsigned int is_volatile:1;
707 unsigned int is_private:1;
708 unsigned int is_protected:1;
709 unsigned int is_public:1;
710 unsigned int is_abstract:1;
711 unsigned int is_static:1;
712 unsigned int is_final:1;
713 unsigned int is_synchronized:1;
714 unsigned int is_native:1;
715 unsigned int is_artificial:1;
717 /* A stub method only has some fields valid (but they are enough
718 to reconstruct the rest of the fields). */
719 unsigned int is_stub:1;
722 unsigned int dummy:4;
724 /* Index into that baseclass's virtual function table,
725 minus 2; else if static: VOFFSET_STATIC; else: 0. */
727 unsigned int voffset:16;
729 #define VOFFSET_STATIC 1
737 /* If this "struct type" describes a template, then it
738 * has arguments. "template_args" points to an array of
739 * template arg descriptors, of length "ntemplate_args".
740 * The only real information in each of these template arg descriptors
741 * is a name. "type" will typically just point to a "struct type" with
742 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
744 short ntemplate_args;
752 /* Pointer to information about enclosing scope, if this is a
753 * local type. If it is not a local type, this is NULL
755 struct local_type_info
763 /* Struct used in computing virtual base list */
766 struct type *vbasetype; /* pointer to virtual base */
767 struct vbase *next; /* next in chain */
770 /* Struct used for ranking a function for overload resolution */
771 struct badness_vector
777 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
778 this shared static structure. */
780 extern const struct cplus_struct_type cplus_struct_default;
782 extern void allocate_cplus_struct_type (struct type *);
784 #define INIT_CPLUS_SPECIFIC(type) \
785 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
786 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
787 #define HAVE_CPLUS_STRUCT(type) \
788 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
790 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
791 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
792 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
793 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
794 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
795 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
796 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
797 #define TYPE_CHAIN(thistype) (thistype)->chain
798 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
799 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
800 so you only have to call check_typedef once. Since allocate_value
801 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
802 #define TYPE_LENGTH(thistype) (thistype)->length
803 #define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile
804 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
805 type, you need to do TYPE_CODE (check_type (this_type)). */
806 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
807 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
808 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields
809 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
811 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
812 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
813 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
815 /* Moto-specific stuff for FORTRAN arrays */
817 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
818 (TYPE_FIELD_ARTIFICIAL((TYPE_FIELD_TYPE((arraytype),0)),1))
819 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
820 (TYPE_FIELD_ARTIFICIAL((TYPE_FIELD_TYPE((arraytype),0)),0))
822 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
823 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
825 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
826 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
830 #define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
831 #define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
832 #define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
833 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
834 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
835 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
836 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
837 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
838 #define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
839 #define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
840 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
841 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.calling_convention
842 #define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type
843 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
844 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name
845 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
846 #define BASETYPE_VIA_PUBLIC(thistype, index) \
847 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
849 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
850 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
851 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
853 #define FIELD_TYPE(thisfld) ((thisfld).type)
854 #define FIELD_NAME(thisfld) ((thisfld).name)
855 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
856 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
857 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
858 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
859 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
860 #define SET_FIELD_BITPOS(thisfld, bitpos) \
861 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
862 FIELD_BITPOS (thisfld) = (bitpos))
863 #define SET_FIELD_PHYSNAME(thisfld, name) \
864 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
865 FIELD_STATIC_PHYSNAME (thisfld) = (name))
866 #define SET_FIELD_PHYSADDR(thisfld, addr) \
867 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
868 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
869 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
870 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
871 FIELD_DWARF_BLOCK (thisfld) = (addr))
872 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
873 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
875 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n]
876 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
877 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
878 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
879 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
880 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
881 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
882 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
883 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
884 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
885 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
886 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
888 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
889 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
890 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
891 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
892 #define TYPE_FIELD_IGNORE_BITS(thistype) \
893 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
894 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
895 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
896 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
897 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
898 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
899 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
900 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
901 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
902 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
903 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
904 #define TYPE_FIELD_PRIVATE(thistype, n) \
905 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
906 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
907 #define TYPE_FIELD_PROTECTED(thistype, n) \
908 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
909 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
910 #define TYPE_FIELD_IGNORE(thistype, n) \
911 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
912 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
913 #define TYPE_FIELD_VIRTUAL(thistype, n) \
914 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
915 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
917 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
918 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
919 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
920 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
921 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
923 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
924 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
925 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
926 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
927 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
928 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
929 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
930 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
931 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
932 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
933 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
934 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
935 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
936 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
937 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
938 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
939 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
940 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
941 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
942 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
944 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
945 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
946 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
948 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
949 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
950 (TYPE_NFIELDS (thistype) == 0) && \
951 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)) && \
952 (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
956 /* Address/pointer types. */
958 /* `pointer to data' type. Some target platforms use an implicitly
959 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
960 struct type *builtin_data_ptr;
962 /* `pointer to function (returning void)' type. Harvard
963 architectures mean that ABI function and code pointers are not
964 interconvertible. Similarly, since ANSI, C standards have
965 explicitly said that pointers to functions and pointers to data
966 are not interconvertible --- that is, you can't cast a function
967 pointer to void * and back, and expect to get the same value.
968 However, all function pointer types are interconvertible, so void
969 (*) () can server as a generic function pointer. */
970 struct type *builtin_func_ptr;
972 /* The target CPU's address type. This is the ISA address size. */
973 struct type *builtin_core_addr;
976 /* Types used for symbols with no debug information. */
977 struct type *nodebug_text_symbol;
978 struct type *nodebug_data_symbol;
979 struct type *nodebug_unknown_symbol;
980 struct type *nodebug_tls_symbol;
983 /* Integral types. */
985 /* Implicit size/sign (based on the the architecture's ABI). */
986 struct type *builtin_void;
987 struct type *builtin_char;
988 struct type *builtin_short;
989 struct type *builtin_int;
990 struct type *builtin_long;
991 struct type *builtin_signed_char;
992 struct type *builtin_unsigned_char;
993 struct type *builtin_unsigned_short;
994 struct type *builtin_unsigned_int;
995 struct type *builtin_unsigned_long;
996 struct type *builtin_float;
997 struct type *builtin_double;
998 struct type *builtin_long_double;
999 struct type *builtin_complex;
1000 struct type *builtin_double_complex;
1001 struct type *builtin_string;
1002 struct type *builtin_bool;
1003 struct type *builtin_long_long;
1004 struct type *builtin_unsigned_long_long;
1005 struct type *builtin_decfloat;
1006 struct type *builtin_decdouble;
1007 struct type *builtin_declong;
1010 /* Return the type table for the specified architecture. */
1011 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
1014 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1015 is for when an architecture needs to describe a register that has
1017 extern struct type *builtin_type_int0;
1018 extern struct type *builtin_type_int8;
1019 extern struct type *builtin_type_uint8;
1020 extern struct type *builtin_type_int16;
1021 extern struct type *builtin_type_uint16;
1022 extern struct type *builtin_type_int32;
1023 extern struct type *builtin_type_uint32;
1024 extern struct type *builtin_type_int64;
1025 extern struct type *builtin_type_uint64;
1026 extern struct type *builtin_type_int128;
1027 extern struct type *builtin_type_uint128;
1029 /* Explicit floating-point formats. See "floatformat.h". */
1030 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
1031 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
1032 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
1033 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
1034 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
1035 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
1036 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
1037 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN];
1038 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
1039 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
1040 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
1042 extern struct type *builtin_type_ieee_single;
1043 extern struct type *builtin_type_ieee_double;
1044 extern struct type *builtin_type_i387_ext;
1045 extern struct type *builtin_type_m68881_ext;
1046 extern struct type *builtin_type_arm_ext;
1047 extern struct type *builtin_type_ia64_spill;
1048 extern struct type *builtin_type_ia64_quad;
1050 /* Platform-neutral void type. Never attempt to construct a pointer
1051 or reference type to this, because those cannot be platform-neutral.
1052 You must use builtin_type (...)->builtin_void in those cases. */
1053 extern struct type *builtin_type_void;
1055 /* Platform-neutral character types.
1056 We use these for the '/c' print format, because c_char is just a
1057 one-byte integral type, which languages less laid back than C
1058 will print as ... well, a one-byte integral type. */
1059 extern struct type *builtin_type_true_char;
1060 extern struct type *builtin_type_true_unsigned_char;
1063 /* This type represents a type that was unrecognized in symbol
1065 extern struct type *builtin_type_error;
1069 /* extern struct type *builtin_type_cxx_typeinfo; */
1071 /* Maximum and minimum values of built-in types */
1073 #define MAX_OF_TYPE(t) \
1074 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1075 : MAX_OF_SIZE(TYPE_LENGTH(t)))
1077 #define MIN_OF_TYPE(t) \
1078 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1079 : MIN_OF_SIZE(TYPE_LENGTH(t)))
1081 /* Allocate space for storing data associated with a particular type.
1082 We ensure that the space is allocated using the same mechanism that
1083 was used to allocate the space for the type structure itself. I.E.
1084 if the type is on an objfile's objfile_obstack, then the space for data
1085 associated with that type will also be allocated on the objfile_obstack.
1086 If the type is not associated with any particular objfile (such as
1087 builtin types), then the data space will be allocated with xmalloc,
1088 the same as for the type structure. */
1090 #define TYPE_ALLOC(t,size) \
1091 (TYPE_OBJFILE (t) != NULL \
1092 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1095 #define TYPE_ZALLOC(t,size) \
1096 (TYPE_OBJFILE (t) != NULL \
1097 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1101 extern struct type *alloc_type (struct objfile *);
1103 extern struct type *init_type (enum type_code, int, int, char *,
1106 /* Helper functions to construct a struct or record type. An
1107 initially empty type is created using init_composite_type().
1108 Fields are then added using append_struct_type_field(). A union
1109 type has its size set to the largest field. A struct type has each
1110 field packed against the previous. */
1112 extern struct type *init_composite_type (char *name, enum type_code code);
1113 extern void append_composite_type_field (struct type *t, char *name,
1114 struct type *field);
1116 /* Helper functions to construct a bit flags type. An initially empty
1117 type is created using init_flag_type(). Flags are then added using
1118 append_flag_type_flag(). */
1119 extern struct type *init_flags_type (char *name, int length);
1120 extern void append_flags_type_flag (struct type *type, int bitpos, char *name);
1122 extern void make_vector_type (struct type *array_type);
1123 extern struct type *init_vector_type (struct type *elt_type, int n);
1125 extern struct type *lookup_reference_type (struct type *);
1127 extern struct type *make_reference_type (struct type *, struct type **);
1129 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1131 extern void replace_type (struct type *, struct type *);
1133 extern int address_space_name_to_int (char *);
1135 extern const char *address_space_int_to_name (int);
1137 extern struct type *make_type_with_address_space (struct type *type,
1138 int space_identifier);
1140 extern struct type *lookup_memberptr_type (struct type *, struct type *);
1142 extern struct type *lookup_methodptr_type (struct type *);
1144 extern void smash_to_method_type (struct type *type, struct type *domain,
1145 struct type *to_type, struct field *args,
1146 int nargs, int varargs);
1148 extern void smash_to_memberptr_type (struct type *, struct type *,
1151 extern struct type *allocate_stub_method (struct type *);
1153 extern char *type_name_no_tag (const struct type *);
1155 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
1157 extern struct type *make_pointer_type (struct type *, struct type **);
1159 extern struct type *lookup_pointer_type (struct type *);
1161 extern struct type *make_function_type (struct type *, struct type **);
1163 extern struct type *lookup_function_type (struct type *);
1165 extern struct type *create_range_type (struct type *, struct type *, int,
1168 extern struct type *create_array_type (struct type *, struct type *,
1171 extern struct type *create_string_type (struct type *, struct type *);
1173 extern struct type *create_set_type (struct type *, struct type *);
1175 extern struct type *lookup_unsigned_typename (char *);
1177 extern struct type *lookup_signed_typename (char *);
1179 extern struct type *check_typedef (struct type *);
1181 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1183 extern void check_stub_method_group (struct type *, int);
1185 extern char *gdb_mangle_name (struct type *, int, int);
1187 extern struct type *lookup_typename (char *, struct block *, int);
1189 extern struct type *lookup_template_type (char *, struct type *,
1192 extern int get_vptr_fieldno (struct type *, struct type **);
1194 extern int get_destructor_fn_field (struct type *, int *, int *);
1196 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1198 extern int is_ancestor (struct type *, struct type *);
1200 /* Overload resolution */
1202 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1204 /* Badness if parameter list length doesn't match arg list length */
1205 #define LENGTH_MISMATCH_BADNESS 100
1206 /* Dummy badness value for nonexistent parameter positions */
1207 #define TOO_FEW_PARAMS_BADNESS 100
1208 /* Badness if no conversion among types */
1209 #define INCOMPATIBLE_TYPE_BADNESS 100
1211 /* Badness of integral promotion */
1212 #define INTEGER_PROMOTION_BADNESS 1
1213 /* Badness of floating promotion */
1214 #define FLOAT_PROMOTION_BADNESS 1
1215 /* Badness of integral conversion */
1216 #define INTEGER_CONVERSION_BADNESS 2
1217 /* Badness of floating conversion */
1218 #define FLOAT_CONVERSION_BADNESS 2
1219 /* Badness of integer<->floating conversions */
1220 #define INT_FLOAT_CONVERSION_BADNESS 2
1221 /* Badness of converting to a boolean */
1222 #define BOOLEAN_CONVERSION_BADNESS 2
1223 /* Badness of pointer conversion */
1224 #define POINTER_CONVERSION_BADNESS 2
1225 /* Badness of conversion of pointer to void pointer */
1226 #define VOID_PTR_CONVERSION_BADNESS 2
1227 /* Badness of converting derived to base class */
1228 #define BASE_CONVERSION_BADNESS 2
1229 /* Badness of converting from non-reference to reference */
1230 #define REFERENCE_CONVERSION_BADNESS 2
1232 /* Non-standard conversions allowed by the debugger */
1233 /* Converting a pointer to an int is usually OK */
1234 #define NS_POINTER_CONVERSION_BADNESS 10
1237 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1239 extern struct badness_vector *rank_function (struct type **, int,
1240 struct type **, int);
1242 extern int rank_one_type (struct type *, struct type *);
1244 extern void recursive_dump_type (struct type *, int);
1246 extern int field_is_static (struct field *);
1250 extern void print_scalar_formatted (const void *, struct type *,
1251 const struct value_print_options *,
1252 int, struct ui_file *);
1254 extern int can_dereference (struct type *);
1256 extern int is_integral_type (struct type *);
1258 extern void maintenance_print_type (char *, int);
1260 extern htab_t create_copied_types_hash (struct objfile *objfile);
1262 extern struct type *copy_type_recursive (struct objfile *objfile,
1264 htab_t copied_types);
1266 extern struct type *copy_type (const struct type *type);
1268 #endif /* GDBTYPES_H */