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, 2009 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. */
139 /* Internal function type. */
140 TYPE_CODE_INTERNAL_FUNCTION
143 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
144 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct
145 "class" attribute. Perhaps we should actually have a separate TYPE_CODE
146 so that we can print "class" or "struct" depending on what the debug
147 info said. It's not clear we should bother. */
149 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
151 /* Some constants representing each bit field in the main_type. See
152 the bit-field-specific macros, below, for documentation of each
153 constant in this enum. These enum values are only used with
154 init_type. Note that the values are chosen not to conflict with
155 type_instance_flag_value; this lets init_type error-check its
160 TYPE_FLAG_UNSIGNED = (1 << 6),
161 TYPE_FLAG_NOSIGN = (1 << 7),
162 TYPE_FLAG_STUB = (1 << 8),
163 TYPE_FLAG_TARGET_STUB = (1 << 9),
164 TYPE_FLAG_STATIC = (1 << 10),
165 TYPE_FLAG_PROTOTYPED = (1 << 11),
166 TYPE_FLAG_INCOMPLETE = (1 << 12),
167 TYPE_FLAG_VARARGS = (1 << 13),
168 TYPE_FLAG_VECTOR = (1 << 14),
169 TYPE_FLAG_FIXED_INSTANCE = (1 << 15),
170 TYPE_FLAG_STUB_SUPPORTED = (1 << 16),
171 TYPE_FLAG_NOTTEXT = (1 << 17),
173 /* Used for error-checking. */
174 TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
177 /* Some bits for the type's instance_flags word. See the macros below
178 for documentation on each bit. Note that if you add a value here,
179 you must update the enum type_flag_value as well. */
180 enum type_instance_flag_value
182 TYPE_INSTANCE_FLAG_CONST = (1 << 0),
183 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
184 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
185 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
186 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
187 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5)
190 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
191 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
193 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
195 /* No sign for this type. In C++, "char", "signed char", and "unsigned
196 char" are distinct types; so we need an extra flag to indicate the
197 absence of a sign! */
199 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
201 /* This appears in a type's flags word if it is a stub type (e.g., if
202 someone referenced a type that wasn't defined in a source file
203 via (struct sir_not_appearing_in_this_film *)). */
205 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
207 /* The target type of this type is a stub type, and this type needs to
208 be updated if it gets un-stubbed in check_typedef.
209 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
210 gets set based on the TYPE_LENGTH of the target type.
211 Also, set for TYPE_CODE_TYPEDEF. */
213 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
215 /* Static type. If this is set, the corresponding type had
217 * Note: This may be unnecessary, since static data members
218 * are indicated by other means (bitpos == -1)
221 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
223 /* This is a function type which appears to have a prototype. We need this
224 for function calls in order to tell us if it's necessary to coerce the args,
225 or to just do the standard conversions. This is used with a short field. */
227 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
229 /* This flag is used to indicate that processing for this type
232 (Mostly intended for HP platforms, where class methods, for
233 instance, can be encountered before their classes in the debug
234 info; the incomplete type has to be marked so that the class and
235 the method can be assigned correct types.) */
237 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
239 /* FIXME drow/2002-06-03: Only used for methods, but applies as well
242 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
244 /* Identify a vector type. Gcc is handling this by adding an extra
245 attribute to the array type. We slurp that in as a new flag of a
246 type. This is used only in dwarf2read.c. */
247 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
249 /* The debugging formats (especially STABS) do not contain enough information
250 to represent all Ada types---especially those whose size depends on
251 dynamic quantities. Therefore, the GNAT Ada compiler includes
252 extra information in the form of additional type definitions
253 connected by naming conventions. This flag indicates that the
254 type is an ordinary (unencoded) GDB type that has been created from
255 the necessary run-time information, and does not need further
256 interpretation. Optionally marks ordinary, fixed-size GDB type. */
258 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
260 /* This debug target supports TYPE_STUB(t). In the unsupported case we have to
261 rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE ().
262 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only guessed
263 the TYPE_STUB(t) value (see dwarfread.c). */
265 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
267 /* Not textual. By default, GDB treats all single byte integers as
268 characters (or elements of strings) unless this flag is set. */
270 #define TYPE_NOTTEXT(t) (TYPE_MAIN_TYPE (t)->flag_nottext)
272 /* Constant type. If this is set, the corresponding type has a
276 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
278 /* Volatile type. If this is set, the corresponding type has a
282 #define TYPE_VOLATILE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
284 /* Instruction-space delimited type. This is for Harvard architectures
285 which have separate instruction and data address spaces (and perhaps
288 GDB usually defines a flat address space that is a superset of the
289 architecture's two (or more) address spaces, but this is an extension
290 of the architecture's model.
292 If TYPE_FLAG_INST is set, an object of the corresponding type
293 resides in instruction memory, even if its address (in the extended
294 flat address space) does not reflect this.
296 Similarly, if TYPE_FLAG_DATA is set, then an object of the
297 corresponding type resides in the data memory space, even if
298 this is not indicated by its (flat address space) address.
300 If neither flag is set, the default space for functions / methods
301 is instruction space, and for data objects is data memory. */
303 #define TYPE_CODE_SPACE(t) \
304 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
306 #define TYPE_DATA_SPACE(t) \
307 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
309 /* Address class flags. Some environments provide for pointers whose
310 size is different from that of a normal pointer or address types
311 where the bits are interpreted differently than normal addresses. The
312 TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific
313 ways to represent these different types of address classes. */
314 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
315 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
316 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
317 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
318 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
319 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
320 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
321 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
323 /* Determine which field of the union main_type.fields[x].loc is used. */
327 FIELD_LOC_KIND_BITPOS, /* bitpos */
328 FIELD_LOC_KIND_PHYSADDR, /* physaddr */
329 FIELD_LOC_KIND_PHYSNAME, /* physname */
330 FIELD_LOC_KIND_DWARF_BLOCK /* dwarf_block */
333 /* This structure is space-critical.
334 Its layout has been tweaked to reduce the space used. */
338 /* Code for kind of type */
340 ENUM_BITFIELD(type_code) code : 8;
342 /* Flags about this type. These fields appear at this location
343 because they packs nicely here. See the TYPE_* macros for
344 documentation about these fields. */
346 unsigned int flag_unsigned : 1;
347 unsigned int flag_nosign : 1;
348 unsigned int flag_stub : 1;
349 unsigned int flag_target_stub : 1;
350 unsigned int flag_static : 1;
351 unsigned int flag_prototyped : 1;
352 unsigned int flag_incomplete : 1;
353 unsigned int flag_varargs : 1;
354 unsigned int flag_vector : 1;
355 unsigned int flag_stub_supported : 1;
356 unsigned int flag_nottext : 1;
357 unsigned int flag_fixed_instance : 1;
359 /* Number of fields described for this type. This field appears at
360 this location because it packs nicely here. */
364 /* Field number of the virtual function table pointer in
365 VPTR_BASETYPE. If -1, we were unable to find the virtual
366 function table pointer in initial symbol reading, and
367 get_vptr_fieldno should be called to find it if possible.
368 get_vptr_fieldno will update this field if possible.
369 Otherwise the value is left at -1.
371 Unused if this type does not have virtual functions.
373 This field appears at this location because it packs nicely here. */
377 /* Name of this type, or NULL if none.
379 This is used for printing only, except by poorly designed C++ code.
380 For looking up a name, look for a symbol in the VAR_DOMAIN. */
384 /* Tag name for this type, or NULL if none. This means that the
385 name of the type consists of a keyword followed by the tag name.
386 Which keyword is determined by the type code ("struct" for
387 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
390 This is used for printing only, except by poorly designed C++ code.
391 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
392 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
393 the name to use to look for definitions in other files. */
397 /* Every type is now associated with a particular objfile, and the
398 type is allocated on the objfile_obstack for that objfile. One problem
399 however, is that there are times when gdb allocates new types while
400 it is not in the process of reading symbols from a particular objfile.
401 Fortunately, these happen when the type being created is a derived
402 type of an existing type, such as in lookup_pointer_type(). So
403 we can just allocate the new type using the same objfile as the
404 existing type, but to do this we need a backpointer to the objfile
405 from the existing type. Yes this is somewhat ugly, but without
406 major overhaul of the internal type system, it can't be avoided
409 struct objfile *objfile;
411 /* For a pointer type, describes the type of object pointed to.
412 For an array type, describes the type of the elements.
413 For a function or method type, describes the type of the return value.
414 For a range type, describes the type of the full range.
415 For a complex type, describes the type of each coordinate.
418 struct type *target_type;
420 /* For structure and union types, a description of each field.
421 For set and pascal array types, there is one "field",
422 whose type is the domain type of the set or array.
423 For range types, there are two "fields",
424 the minimum and maximum values (both inclusive).
425 For enum types, each possible value is described by one "field".
426 For a function or method type, a "field" for each parameter.
427 For C++ classes, there is one field for each base class (if it is
428 a derived class) plus one field for each class data member. Member
429 functions are recorded elsewhere.
431 Using a pointer to a separate array of fields
432 allows all types to have the same size, which is useful
433 because we can allocate the space for a type before
434 we know what to put in it. */
440 /* Position of this field, counting in bits from start of
441 containing structure.
442 For gdbarch_bits_big_endian=1 targets, it is the bit offset to the MSB.
443 For gdbarch_bits_big_endian=0 targets, it is the bit offset to the LSB.
444 For a range bound or enum value, this is the value itself. */
448 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
449 is the location (in the target) of the static field.
450 Otherwise, physname is the mangled label of the static field. */
455 /* The field location can be computed by evaluating the following DWARF
456 block. This can be used in Fortran variable-length arrays, for
459 struct dwarf2_locexpr_baton *dwarf_block;
463 /* For a function or member type, this is 1 if the argument is marked
464 artificial. Artificial arguments should not be shown to the
465 user. For TYPE_CODE_RANGE it is set if the specific bound is not
467 unsigned int artificial : 1;
469 /* Discriminant for union field_location. */
470 ENUM_BITFIELD(field_loc_kind) loc_kind : 2;
472 /* Size of this field, in bits, or zero if not packed.
473 For an unpacked field, the field's type's length
474 says how many bytes the field occupies. */
476 unsigned int bitsize : 29;
478 /* In a struct or union type, type of this field.
479 In a function or member type, type of this argument.
480 In an array type, the domain-type of the array. */
484 /* Name of field, value or argument.
485 NULL for range bounds, array domains, and member function
492 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
493 is the base class which defined the virtual function table pointer.
495 For types that are pointer to member types (TYPE_CODE_METHODPTR,
496 TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer
499 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
500 type that contains the method.
504 struct type *vptr_basetype;
506 /* Slot to point to additional language-specific fields of this type. */
510 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to
511 cplus_struct_default, a default static instance of a struct
512 cplus_struct_type. */
514 struct cplus_struct_type *cplus_stuff;
516 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
517 floatformat objects that describe the floating-point value
518 that resides within the type. The first is for big endian
519 targets and the second is for little endian targets. */
521 const struct floatformat **floatformat;
523 /* For TYPE_CODE_FUNC types, the calling convention for targets
524 supporting multiple ABIs. Right now this is only fetched from
525 the Dwarf-2 DW_AT_calling_convention attribute. */
526 unsigned calling_convention;
530 /* A ``struct type'' describes a particular instance of a type, with
531 some particular qualification. */
534 /* Type that is a pointer to this type.
535 NULL if no such pointer-to type is known yet.
536 The debugger may add the address of such a type
537 if it has to construct one later. */
539 struct type *pointer_type;
541 /* C++: also need a reference type. */
543 struct type *reference_type;
545 /* Variant chain. This points to a type that differs from this one only
546 in qualifiers and length. Currently, the possible qualifiers are
547 const, volatile, code-space, data-space, and address class. The
548 length may differ only when one of the address class flags are set.
549 The variants are linked in a circular ring and share MAIN_TYPE. */
552 /* Flags specific to this instance of the type, indicating where
553 on the ring we are. */
556 /* Length of storage for a value of this type. This is what
557 sizeof(type) would return; use it for address arithmetic,
558 memory reads and writes, etc. This size includes padding. For
559 example, an i386 extended-precision floating point value really
560 only occupies ten bytes, but most ABI's declare its size to be
561 12 bytes, to preserve alignment. A `struct type' representing
562 such a floating-point type would have a `length' value of 12,
563 even though the last two bytes are unused.
565 There's a bit of a host/target mess here, if you're concerned
566 about machines whose bytes aren't eight bits long, or who don't
567 have byte-addressed memory. Various places pass this to memcpy
568 and such, meaning it must be in units of host bytes. Various
569 other places expect they can calculate addresses by adding it
570 and such, meaning it must be in units of target bytes. For
571 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
572 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
574 One fix would be to make this field in bits (requiring that it
575 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
576 the other choice would be to make it consistently in units of
577 HOST_CHAR_BIT. However, this would still fail to address
578 machines based on a ternary or decimal representation. */
582 /* Core type, shared by a group of qualified types. */
583 struct main_type *main_type;
586 #define NULL_TYPE ((struct type *) 0)
588 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
591 struct cplus_struct_type
593 /* Number of base classes this type derives from. The baseclasses are
594 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
595 the struct type). I think only the `type' field of such a field has
600 /* Number of methods with unique names. All overloaded methods with
601 the same name count only once. */
605 /* Number of methods described for this type, not including the
606 methods that it derives from. */
608 short nfn_fields_total;
610 /* The "declared_type" field contains a code saying how the
611 user really declared this type, e.g., "class s", "union s",
613 The 3 above things come out from the C++ compiler looking like classes,
614 but we keep track of the real declaration so we can give
615 the correct information on "ptype". (Note: TEMPLATE may not
616 belong in this list...) */
618 #define DECLARED_TYPE_CLASS 0
619 #define DECLARED_TYPE_UNION 1
620 #define DECLARED_TYPE_STRUCT 2
621 #define DECLARED_TYPE_TEMPLATE 3
622 short declared_type; /* One of the above codes */
624 /* For derived classes, the number of base classes is given by n_baseclasses
625 and virtual_field_bits is a bit vector containing one bit per base class.
626 If the base class is virtual, the corresponding bit will be set.
631 class C : public B, public virtual A {};
633 B is a baseclass of C; A is a virtual baseclass for C.
634 This is a C++ 2.0 language feature. */
636 B_TYPE *virtual_field_bits;
638 /* For classes with private fields, the number of fields is given by
639 nfields and private_field_bits is a bit vector containing one bit
641 If the field is private, the corresponding bit will be set. */
643 B_TYPE *private_field_bits;
645 /* For classes with protected fields, the number of fields is given by
646 nfields and protected_field_bits is a bit vector containing one bit
648 If the field is private, the corresponding bit will be set. */
650 B_TYPE *protected_field_bits;
652 /* for classes with fields to be ignored, either this is optimized out
653 or this field has length 0 */
655 B_TYPE *ignore_field_bits;
657 /* For classes, structures, and unions, a description of each field,
658 which consists of an overloaded name, followed by the types of
659 arguments that the method expects, and then the name after it
660 has been renamed to make it distinct.
662 fn_fieldlists points to an array of nfn_fields of these. */
667 /* The overloaded name. */
671 /* The number of methods with this name. */
675 /* The list of methods. */
680 /* If is_stub is clear, this is the mangled name which we can
681 look up to find the address of the method (FIXME: it would
682 be cleaner to have a pointer to the struct symbol here
685 /* If is_stub is set, this is the portion of the mangled
686 name which specifies the arguments. For example, "ii",
687 if there are two int arguments, or "" if there are no
688 arguments. See gdb_mangle_name for the conversion from this
689 format to the one used if is_stub is clear. */
693 /* The function type for the method.
694 (This comment used to say "The return value of the method",
695 but that's wrong. The function type
696 is expected here, i.e. something with TYPE_CODE_FUNC,
697 and *not* the return-value type). */
701 /* For virtual functions.
702 First baseclass that defines this virtual function. */
704 struct type *fcontext;
708 unsigned int is_const:1;
709 unsigned int is_volatile:1;
710 unsigned int is_private:1;
711 unsigned int is_protected:1;
712 unsigned int is_public:1;
713 unsigned int is_abstract:1;
714 unsigned int is_static:1;
715 unsigned int is_final:1;
716 unsigned int is_synchronized:1;
717 unsigned int is_native:1;
718 unsigned int is_artificial:1;
720 /* A stub method only has some fields valid (but they are enough
721 to reconstruct the rest of the fields). */
722 unsigned int is_stub:1;
725 unsigned int dummy:4;
727 /* Index into that baseclass's virtual function table,
728 minus 2; else if static: VOFFSET_STATIC; else: 0. */
730 unsigned int voffset:16;
732 #define VOFFSET_STATIC 1
740 /* If this "struct type" describes a template, then it
741 * has arguments. "template_args" points to an array of
742 * template arg descriptors, of length "ntemplate_args".
743 * The only real information in each of these template arg descriptors
744 * is a name. "type" will typically just point to a "struct type" with
745 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
747 short ntemplate_args;
755 /* Pointer to information about enclosing scope, if this is a
756 * local type. If it is not a local type, this is NULL
758 struct local_type_info
766 /* Struct used in computing virtual base list */
769 struct type *vbasetype; /* pointer to virtual base */
770 struct vbase *next; /* next in chain */
773 /* Struct used for ranking a function for overload resolution */
774 struct badness_vector
780 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
781 this shared static structure. */
783 extern const struct cplus_struct_type cplus_struct_default;
785 extern void allocate_cplus_struct_type (struct type *);
787 #define INIT_CPLUS_SPECIFIC(type) \
788 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
789 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
790 #define HAVE_CPLUS_STRUCT(type) \
791 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
793 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
794 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
795 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
796 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
797 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
798 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
799 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
800 #define TYPE_CHAIN(thistype) (thistype)->chain
801 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
802 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
803 so you only have to call check_typedef once. Since allocate_value
804 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
805 #define TYPE_LENGTH(thistype) (thistype)->length
806 #define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile
807 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
808 type, you need to do TYPE_CODE (check_type (this_type)). */
809 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
810 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
811 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields
812 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
814 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
815 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
816 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
818 /* Moto-specific stuff for FORTRAN arrays */
820 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
821 (TYPE_FIELD_ARTIFICIAL(TYPE_INDEX_TYPE((arraytype)),1))
822 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
823 (TYPE_FIELD_ARTIFICIAL(TYPE_INDEX_TYPE((arraytype)),0))
825 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
826 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
828 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
829 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
833 #define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
834 #define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
835 #define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
836 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
837 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
838 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
839 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
840 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
841 #define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
842 #define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
843 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
844 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.calling_convention
845 #define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type
846 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
847 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name
848 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
849 #define BASETYPE_VIA_PUBLIC(thistype, index) \
850 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
852 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
853 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
854 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
856 #define FIELD_TYPE(thisfld) ((thisfld).type)
857 #define FIELD_NAME(thisfld) ((thisfld).name)
858 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
859 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
860 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
861 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
862 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
863 #define SET_FIELD_BITPOS(thisfld, bitpos) \
864 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
865 FIELD_BITPOS (thisfld) = (bitpos))
866 #define SET_FIELD_PHYSNAME(thisfld, name) \
867 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
868 FIELD_STATIC_PHYSNAME (thisfld) = (name))
869 #define SET_FIELD_PHYSADDR(thisfld, addr) \
870 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
871 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
872 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
873 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
874 FIELD_DWARF_BLOCK (thisfld) = (addr))
875 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
876 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
878 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n]
879 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
880 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
881 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
882 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
883 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
884 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
885 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
886 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
887 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
888 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
889 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
891 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
892 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
893 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
894 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
895 #define TYPE_FIELD_IGNORE_BITS(thistype) \
896 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
897 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
898 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
899 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
900 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
901 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
902 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
903 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
904 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
905 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
906 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
907 #define TYPE_FIELD_PRIVATE(thistype, n) \
908 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
909 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
910 #define TYPE_FIELD_PROTECTED(thistype, n) \
911 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
912 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
913 #define TYPE_FIELD_IGNORE(thistype, n) \
914 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
915 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
916 #define TYPE_FIELD_VIRTUAL(thistype, n) \
917 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
918 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
920 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
921 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
922 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
923 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
924 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
926 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
927 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
928 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
929 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
930 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
931 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
932 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
933 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
934 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
935 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
936 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
937 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
938 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
939 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
940 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
941 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
942 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
943 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
944 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
945 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
947 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
948 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
949 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
951 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
952 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
953 (TYPE_NFIELDS (thistype) == 0) && \
954 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)) && \
955 (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
959 /* Address/pointer types. */
961 /* `pointer to data' type. Some target platforms use an implicitly
962 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
963 struct type *builtin_data_ptr;
965 /* `pointer to function (returning void)' type. Harvard
966 architectures mean that ABI function and code pointers are not
967 interconvertible. Similarly, since ANSI, C standards have
968 explicitly said that pointers to functions and pointers to data
969 are not interconvertible --- that is, you can't cast a function
970 pointer to void * and back, and expect to get the same value.
971 However, all function pointer types are interconvertible, so void
972 (*) () can server as a generic function pointer. */
973 struct type *builtin_func_ptr;
975 /* The target CPU's address type. This is the ISA address size. */
976 struct type *builtin_core_addr;
979 /* Types used for symbols with no debug information. */
980 struct type *nodebug_text_symbol;
981 struct type *nodebug_data_symbol;
982 struct type *nodebug_unknown_symbol;
983 struct type *nodebug_tls_symbol;
986 /* Integral types. */
988 /* Implicit size/sign (based on the the architecture's ABI). */
989 struct type *builtin_void;
990 struct type *builtin_char;
991 struct type *builtin_short;
992 struct type *builtin_int;
993 struct type *builtin_long;
994 struct type *builtin_signed_char;
995 struct type *builtin_unsigned_char;
996 struct type *builtin_unsigned_short;
997 struct type *builtin_unsigned_int;
998 struct type *builtin_unsigned_long;
999 struct type *builtin_float;
1000 struct type *builtin_double;
1001 struct type *builtin_long_double;
1002 struct type *builtin_complex;
1003 struct type *builtin_double_complex;
1004 struct type *builtin_string;
1005 struct type *builtin_bool;
1006 struct type *builtin_long_long;
1007 struct type *builtin_unsigned_long_long;
1008 struct type *builtin_decfloat;
1009 struct type *builtin_decdouble;
1010 struct type *builtin_declong;
1013 /* Return the type table for the specified architecture. */
1014 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
1017 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1018 is for when an architecture needs to describe a register that has
1020 extern struct type *builtin_type_int0;
1021 extern struct type *builtin_type_int8;
1022 extern struct type *builtin_type_uint8;
1023 extern struct type *builtin_type_int16;
1024 extern struct type *builtin_type_uint16;
1025 extern struct type *builtin_type_int32;
1026 extern struct type *builtin_type_uint32;
1027 extern struct type *builtin_type_int64;
1028 extern struct type *builtin_type_uint64;
1029 extern struct type *builtin_type_int128;
1030 extern struct type *builtin_type_uint128;
1032 /* Explicit floating-point formats. See "floatformat.h". */
1033 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
1034 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
1035 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
1036 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
1037 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
1038 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
1039 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
1040 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN];
1041 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
1042 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
1043 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
1045 extern struct type *builtin_type_ieee_single;
1046 extern struct type *builtin_type_ieee_double;
1047 extern struct type *builtin_type_i387_ext;
1048 extern struct type *builtin_type_m68881_ext;
1049 extern struct type *builtin_type_arm_ext;
1050 extern struct type *builtin_type_ia64_spill;
1051 extern struct type *builtin_type_ia64_quad;
1053 /* Platform-neutral void type. Never attempt to construct a pointer
1054 or reference type to this, because those cannot be platform-neutral.
1055 You must use builtin_type (...)->builtin_void in those cases. */
1056 extern struct type *builtin_type_void;
1058 /* Platform-neutral character types.
1059 We use these for the '/c' print format, because c_char is just a
1060 one-byte integral type, which languages less laid back than C
1061 will print as ... well, a one-byte integral type. */
1062 extern struct type *builtin_type_true_char;
1063 extern struct type *builtin_type_true_unsigned_char;
1066 /* This type represents a type that was unrecognized in symbol
1068 extern struct type *builtin_type_error;
1072 /* extern struct type *builtin_type_cxx_typeinfo; */
1074 /* Maximum and minimum values of built-in types */
1076 #define MAX_OF_TYPE(t) \
1077 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1078 : MAX_OF_SIZE(TYPE_LENGTH(t)))
1080 #define MIN_OF_TYPE(t) \
1081 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1082 : MIN_OF_SIZE(TYPE_LENGTH(t)))
1084 /* Allocate space for storing data associated with a particular type.
1085 We ensure that the space is allocated using the same mechanism that
1086 was used to allocate the space for the type structure itself. I.E.
1087 if the type is on an objfile's objfile_obstack, then the space for data
1088 associated with that type will also be allocated on the objfile_obstack.
1089 If the type is not associated with any particular objfile (such as
1090 builtin types), then the data space will be allocated with xmalloc,
1091 the same as for the type structure. */
1093 #define TYPE_ALLOC(t,size) \
1094 (TYPE_OBJFILE (t) != NULL \
1095 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1098 #define TYPE_ZALLOC(t,size) \
1099 (TYPE_OBJFILE (t) != NULL \
1100 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1104 extern struct type *alloc_type (struct objfile *);
1106 extern struct type *init_type (enum type_code, int, int, char *,
1109 /* Helper functions to construct a struct or record type. An
1110 initially empty type is created using init_composite_type().
1111 Fields are then added using append_struct_type_field(). A union
1112 type has its size set to the largest field. A struct type has each
1113 field packed against the previous. */
1115 extern struct type *init_composite_type (char *name, enum type_code code);
1116 extern void append_composite_type_field (struct type *t, char *name,
1117 struct type *field);
1118 extern void append_composite_type_field_aligned (struct type *t,
1123 /* Helper functions to construct a bit flags type. An initially empty
1124 type is created using init_flag_type(). Flags are then added using
1125 append_flag_type_flag(). */
1126 extern struct type *init_flags_type (char *name, int length);
1127 extern void append_flags_type_flag (struct type *type, int bitpos, char *name);
1129 extern void make_vector_type (struct type *array_type);
1130 extern struct type *init_vector_type (struct type *elt_type, int n);
1132 extern struct type *lookup_reference_type (struct type *);
1134 extern struct type *make_reference_type (struct type *, struct type **);
1136 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1138 extern void replace_type (struct type *, struct type *);
1140 extern int address_space_name_to_int (char *);
1142 extern const char *address_space_int_to_name (int);
1144 extern struct type *make_type_with_address_space (struct type *type,
1145 int space_identifier);
1147 extern struct type *lookup_memberptr_type (struct type *, struct type *);
1149 extern struct type *lookup_methodptr_type (struct type *);
1151 extern void smash_to_method_type (struct type *type, struct type *domain,
1152 struct type *to_type, struct field *args,
1153 int nargs, int varargs);
1155 extern void smash_to_memberptr_type (struct type *, struct type *,
1158 extern struct type *allocate_stub_method (struct type *);
1160 extern char *type_name_no_tag (const struct type *);
1162 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
1164 extern struct type *make_pointer_type (struct type *, struct type **);
1166 extern struct type *lookup_pointer_type (struct type *);
1168 extern struct type *make_function_type (struct type *, struct type **);
1170 extern struct type *lookup_function_type (struct type *);
1172 extern struct type *create_range_type (struct type *, struct type *, int,
1175 extern struct type *create_array_type (struct type *, struct type *,
1178 extern struct type *create_string_type (struct type *, struct type *);
1180 extern struct type *create_set_type (struct type *, struct type *);
1182 extern struct type *lookup_unsigned_typename (char *);
1184 extern struct type *lookup_signed_typename (char *);
1186 extern struct type *check_typedef (struct type *);
1188 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1190 extern void check_stub_method_group (struct type *, int);
1192 extern char *gdb_mangle_name (struct type *, int, int);
1194 extern struct type *lookup_typename (char *, struct block *, int);
1196 extern struct type *lookup_template_type (char *, struct type *,
1199 extern int get_vptr_fieldno (struct type *, struct type **);
1201 extern int get_destructor_fn_field (struct type *, int *, int *);
1203 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1205 extern int is_ancestor (struct type *, struct type *);
1207 /* Overload resolution */
1209 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1211 /* Badness if parameter list length doesn't match arg list length */
1212 #define LENGTH_MISMATCH_BADNESS 100
1213 /* Dummy badness value for nonexistent parameter positions */
1214 #define TOO_FEW_PARAMS_BADNESS 100
1215 /* Badness if no conversion among types */
1216 #define INCOMPATIBLE_TYPE_BADNESS 100
1218 /* Badness of integral promotion */
1219 #define INTEGER_PROMOTION_BADNESS 1
1220 /* Badness of floating promotion */
1221 #define FLOAT_PROMOTION_BADNESS 1
1222 /* Badness of integral conversion */
1223 #define INTEGER_CONVERSION_BADNESS 2
1224 /* Badness of floating conversion */
1225 #define FLOAT_CONVERSION_BADNESS 2
1226 /* Badness of integer<->floating conversions */
1227 #define INT_FLOAT_CONVERSION_BADNESS 2
1228 /* Badness of converting to a boolean */
1229 #define BOOLEAN_CONVERSION_BADNESS 2
1230 /* Badness of pointer conversion */
1231 #define POINTER_CONVERSION_BADNESS 2
1232 /* Badness of conversion of pointer to void pointer */
1233 #define VOID_PTR_CONVERSION_BADNESS 2
1234 /* Badness of converting derived to base class */
1235 #define BASE_CONVERSION_BADNESS 2
1236 /* Badness of converting from non-reference to reference */
1237 #define REFERENCE_CONVERSION_BADNESS 2
1239 /* Non-standard conversions allowed by the debugger */
1240 /* Converting a pointer to an int is usually OK */
1241 #define NS_POINTER_CONVERSION_BADNESS 10
1244 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1246 extern struct badness_vector *rank_function (struct type **, int,
1247 struct type **, int);
1249 extern int rank_one_type (struct type *, struct type *);
1251 extern void recursive_dump_type (struct type *, int);
1253 extern int field_is_static (struct field *);
1257 extern void print_scalar_formatted (const void *, struct type *,
1258 const struct value_print_options *,
1259 int, struct ui_file *);
1261 extern int can_dereference (struct type *);
1263 extern int is_integral_type (struct type *);
1265 extern void maintenance_print_type (char *, int);
1267 extern htab_t create_copied_types_hash (struct objfile *objfile);
1269 extern struct type *copy_type_recursive (struct objfile *objfile,
1271 htab_t copied_types);
1273 extern struct type *copy_type (const struct type *type);
1275 #endif /* GDBTYPES_H */