2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2018 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)
26 /* * \page gdbtypes GDB Types
28 GDB represents all the different kinds of types in programming
29 languages using a common representation defined in gdbtypes.h.
31 The main data structure is main_type; it consists of a code (such
32 as #TYPE_CODE_ENUM for enumeration types), a number of
33 generally-useful fields such as the printable name, and finally a
34 field main_type::type_specific that is a union of info specific to
35 particular languages or other special cases (such as calling
38 The available type codes are defined in enum #type_code. The enum
39 includes codes both for types that are common across a variety
40 of languages, and for types that are language-specific.
42 Most accesses to type fields go through macros such as
43 #TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are
44 written such that they can be used as both rvalues and lvalues.
48 #include "common/offset-type.h"
49 #include "common/enum-flags.h"
50 #include "common/underlying.h"
51 #include "common/print-utils.h"
53 /* Forward declarations for prototypes. */
56 struct value_print_options
;
59 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
60 are already DWARF-specific. */
62 /* * Offset relative to the start of its containing CU (compilation
64 DEFINE_OFFSET_TYPE (cu_offset
, unsigned int);
66 /* * Offset relative to the start of its .debug_info or .debug_types
68 DEFINE_OFFSET_TYPE (sect_offset
, uint64_t);
71 sect_offset_str (sect_offset offset
)
73 return hex_string (to_underlying (offset
));
76 /* Some macros for char-based bitfields. */
78 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
79 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
80 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
81 #define B_TYPE unsigned char
82 #define B_BYTES(x) ( 1 + ((x)>>3) )
83 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
85 /* * Different kinds of data types are distinguished by the `code'
90 TYPE_CODE_BITSTRING
= -1, /**< Deprecated */
91 TYPE_CODE_UNDEF
= 0, /**< Not used; catches errors */
92 TYPE_CODE_PTR
, /**< Pointer type */
94 /* * Array type with lower & upper bounds.
96 Regardless of the language, GDB represents multidimensional
97 array types the way C does: as arrays of arrays. So an
98 instance of a GDB array type T can always be seen as a series
99 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
102 Row-major languages like C lay out multi-dimensional arrays so
103 that incrementing the rightmost index in a subscripting
104 expression results in the smallest change in the address of the
105 element referred to. Column-major languages like Fortran lay
106 them out so that incrementing the leftmost index results in the
109 This means that, in column-major languages, working our way
110 from type to target type corresponds to working through indices
111 from right to left, not left to right. */
114 TYPE_CODE_STRUCT
, /**< C struct or Pascal record */
115 TYPE_CODE_UNION
, /**< C union or Pascal variant part */
116 TYPE_CODE_ENUM
, /**< Enumeration type */
117 TYPE_CODE_FLAGS
, /**< Bit flags type */
118 TYPE_CODE_FUNC
, /**< Function type */
119 TYPE_CODE_INT
, /**< Integer type */
121 /* * Floating type. This is *NOT* a complex type. Beware, there
122 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
126 /* * Void type. The length field specifies the length (probably
127 always one) which is used in pointer arithmetic involving
128 pointers to this type, but actually dereferencing such a
129 pointer is invalid; a void type has no length and no actual
130 representation in memory or registers. A pointer to a void
131 type is a generic pointer. */
134 TYPE_CODE_SET
, /**< Pascal sets */
135 TYPE_CODE_RANGE
, /**< Range (integers within spec'd bounds). */
137 /* * A string type which is like an array of character but prints
138 differently. It does not contain a length field as Pascal
139 strings (for many Pascals, anyway) do; if we want to deal with
140 such strings, we should use a new type code. */
143 /* * Unknown type. The length field is valid if we were able to
144 deduce that much about the type, or 0 if we don't even know
149 TYPE_CODE_METHOD
, /**< Method type */
151 /* * Pointer-to-member-function type. This describes how to access a
152 particular member function of a class (possibly a virtual
153 member function). The representation may vary between different
157 /* * Pointer-to-member type. This is the offset within a class to
158 some particular data member. The only currently supported
159 representation uses an unbiased offset, with -1 representing
160 NULL; this is used by the Itanium C++ ABI (used by GCC on all
164 TYPE_CODE_REF
, /**< C++ Reference types */
166 TYPE_CODE_RVALUE_REF
, /**< C++ rvalue reference types */
168 TYPE_CODE_CHAR
, /**< *real* character type */
170 /* * Boolean type. 0 is false, 1 is true, and other values are
171 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
175 TYPE_CODE_COMPLEX
, /**< Complex float */
179 TYPE_CODE_NAMESPACE
, /**< C++ namespace. */
181 TYPE_CODE_DECFLOAT
, /**< Decimal floating point. */
183 TYPE_CODE_MODULE
, /**< Fortran module. */
185 /* * Internal function type. */
186 TYPE_CODE_INTERNAL_FUNCTION
,
188 /* * Methods implemented in extension languages. */
192 /* * Some bits for the type's instance_flags word. See the macros
193 below for documentation on each bit. */
195 enum type_instance_flag_value
197 TYPE_INSTANCE_FLAG_CONST
= (1 << 0),
198 TYPE_INSTANCE_FLAG_VOLATILE
= (1 << 1),
199 TYPE_INSTANCE_FLAG_CODE_SPACE
= (1 << 2),
200 TYPE_INSTANCE_FLAG_DATA_SPACE
= (1 << 3),
201 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1
= (1 << 4),
202 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2
= (1 << 5),
203 TYPE_INSTANCE_FLAG_NOTTEXT
= (1 << 6),
204 TYPE_INSTANCE_FLAG_RESTRICT
= (1 << 7),
205 TYPE_INSTANCE_FLAG_ATOMIC
= (1 << 8)
208 DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value
, type_instance_flags
);
210 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
211 the type is signed (unless TYPE_NOSIGN (below) is set). */
213 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
215 /* * No sign for this type. In C++, "char", "signed char", and
216 "unsigned char" are distinct types; so we need an extra flag to
217 indicate the absence of a sign! */
219 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
221 /* * This appears in a type's flags word if it is a stub type (e.g.,
222 if someone referenced a type that wasn't defined in a source file
223 via (struct sir_not_appearing_in_this_film *)). */
225 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
227 /* * The target type of this type is a stub type, and this type needs
228 to be updated if it gets un-stubbed in check_typedef. Used for
229 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
230 based on the TYPE_LENGTH of the target type. Also, set for
231 TYPE_CODE_TYPEDEF. */
233 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
235 /* * This is a function type which appears to have a prototype. We
236 need this for function calls in order to tell us if it's necessary
237 to coerce the args, or to just do the standard conversions. This
238 is used with a short field. */
240 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
242 /* * This flag is used to indicate that processing for this type
245 (Mostly intended for HP platforms, where class methods, for
246 instance, can be encountered before their classes in the debug
247 info; the incomplete type has to be marked so that the class and
248 the method can be assigned correct types.) */
250 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
252 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
255 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
257 /* * Identify a vector type. Gcc is handling this by adding an extra
258 attribute to the array type. We slurp that in as a new flag of a
259 type. This is used only in dwarf2read.c. */
260 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
262 /* * The debugging formats (especially STABS) do not contain enough
263 information to represent all Ada types---especially those whose
264 size depends on dynamic quantities. Therefore, the GNAT Ada
265 compiler includes extra information in the form of additional type
266 definitions connected by naming conventions. This flag indicates
267 that the type is an ordinary (unencoded) GDB type that has been
268 created from the necessary run-time information, and does not need
269 further interpretation. Optionally marks ordinary, fixed-size GDB
272 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
274 /* * This debug target supports TYPE_STUB(t). In the unsupported case
275 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
276 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
277 guessed the TYPE_STUB(t) value (see dwarfread.c). */
279 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
281 /* * Not textual. By default, GDB treats all single byte integers as
282 characters (or elements of strings) unless this flag is set. */
284 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
286 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
287 address is returned by this function call. TYPE_TARGET_TYPE
288 determines the final returned function type to be presented to
291 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
293 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
294 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
295 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
297 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
298 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
299 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
301 /* * True if this type was declared using the "class" keyword. This is
302 only valid for C++ structure and enum types. If false, a structure
303 was declared as a "struct"; if true it was declared "class". For
304 enum types, this is true when "enum class" or "enum struct" was
305 used to declare the type.. */
307 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
309 /* * True if this type is a "flag" enum. A flag enum is one where all
310 the values are pairwise disjoint when "and"ed together. This
311 affects how enum values are printed. */
313 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
315 /* * True if this type is a discriminated union type. Only valid for
316 TYPE_CODE_UNION. A discriminated union stores a reference to the
317 discriminant field along with the discriminator values in a dynamic
320 #define TYPE_FLAG_DISCRIMINATED_UNION(t) \
321 (TYPE_MAIN_TYPE (t)->flag_discriminated_union)
323 /* * Constant type. If this is set, the corresponding type has a
326 #define TYPE_CONST(t) ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) != 0)
328 /* * Volatile type. If this is set, the corresponding type has a
329 volatile modifier. */
331 #define TYPE_VOLATILE(t) \
332 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
334 /* * Restrict type. If this is set, the corresponding type has a
335 restrict modifier. */
337 #define TYPE_RESTRICT(t) \
338 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
340 /* * Atomic type. If this is set, the corresponding type has an
343 #define TYPE_ATOMIC(t) \
344 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
346 /* * True if this type represents either an lvalue or lvalue reference type. */
348 #define TYPE_IS_REFERENCE(t) \
349 (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
351 /* * Instruction-space delimited type. This is for Harvard architectures
352 which have separate instruction and data address spaces (and perhaps
355 GDB usually defines a flat address space that is a superset of the
356 architecture's two (or more) address spaces, but this is an extension
357 of the architecture's model.
359 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
360 resides in instruction memory, even if its address (in the extended
361 flat address space) does not reflect this.
363 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
364 corresponding type resides in the data memory space, even if
365 this is not indicated by its (flat address space) address.
367 If neither flag is set, the default space for functions / methods
368 is instruction space, and for data objects is data memory. */
370 #define TYPE_CODE_SPACE(t) \
371 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
373 #define TYPE_DATA_SPACE(t) \
374 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
376 /* * Address class flags. Some environments provide for pointers
377 whose size is different from that of a normal pointer or address
378 types where the bits are interpreted differently than normal
379 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
380 target specific ways to represent these different types of address
383 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
384 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
385 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
386 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
387 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
388 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
389 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
390 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
392 /* * Information needed for a discriminated union. A discriminated
393 union is handled somewhat differently from an ordinary union.
395 One field is designated as the discriminant. Only one other field
396 is active at a time; which one depends on the value of the
397 discriminant and the data in this structure.
399 Additionally, it is possible to have a univariant discriminated
400 union. In this case, the union has just a single field, which is
401 assumed to be the only active variant -- in this case no
402 discriminant is provided. */
404 struct discriminant_info
406 /* * The index of the discriminant field. If -1, then this union
407 must have just a single field. */
409 int discriminant_index
;
411 /* * The index of the default branch of the union. If -1, then
412 there is no default branch. */
416 /* * The discriminant values corresponding to each branch. This has
417 a number of entries equal to the number of fields in this union.
418 If discriminant_index is not -1, then that entry in this array is
419 not used. If default_index is not -1, then that entry in this
420 array is not used. */
422 ULONGEST discriminants
[1];
425 enum dynamic_prop_kind
427 PROP_UNDEFINED
, /* Not defined. */
428 PROP_CONST
, /* Constant. */
429 PROP_ADDR_OFFSET
, /* Address offset. */
430 PROP_LOCEXPR
, /* Location expression. */
431 PROP_LOCLIST
/* Location list. */
434 union dynamic_prop_data
436 /* Storage for constant property. */
440 /* Storage for dynamic property. */
445 /* * Used to store a dynamic property. */
449 /* Determine which field of the union dynamic_prop.data is used. */
450 enum dynamic_prop_kind kind
;
452 /* Storage for dynamic or static value. */
453 union dynamic_prop_data data
;
456 /* Compare two dynamic_prop objects for equality. dynamic_prop
457 instances are equal iff they have the same type and storage. */
458 extern bool operator== (const dynamic_prop
&l
, const dynamic_prop
&r
);
460 /* Compare two dynamic_prop objects for inequality. */
461 static inline bool operator!= (const dynamic_prop
&l
, const dynamic_prop
&r
)
466 /* * Define a type's dynamic property node kind. */
467 enum dynamic_prop_node_kind
469 /* A property providing a type's data location.
470 Evaluating this field yields to the location of an object's data. */
471 DYN_PROP_DATA_LOCATION
,
473 /* A property representing DW_AT_allocated. The presence of this attribute
474 indicates that the object of the type can be allocated/deallocated. */
477 /* A property representing DW_AT_allocated. The presence of this attribute
478 indicated that the object of the type can be associated. */
481 /* A property providing an array's byte stride. */
482 DYN_PROP_BYTE_STRIDE
,
484 /* A property holding information about a discriminated union. */
485 DYN_PROP_DISCRIMINATED
,
488 /* * List for dynamic type attributes. */
489 struct dynamic_prop_list
491 /* The kind of dynamic prop in this node. */
492 enum dynamic_prop_node_kind prop_kind
;
494 /* The dynamic property itself. */
495 struct dynamic_prop prop
;
497 /* A pointer to the next dynamic property. */
498 struct dynamic_prop_list
*next
;
501 /* * Determine which field of the union main_type.fields[x].loc is
506 FIELD_LOC_KIND_BITPOS
, /**< bitpos */
507 FIELD_LOC_KIND_ENUMVAL
, /**< enumval */
508 FIELD_LOC_KIND_PHYSADDR
, /**< physaddr */
509 FIELD_LOC_KIND_PHYSNAME
, /**< physname */
510 FIELD_LOC_KIND_DWARF_BLOCK
/**< dwarf_block */
513 /* * A discriminant to determine which field in the
514 main_type.type_specific union is being used, if any.
516 For types such as TYPE_CODE_FLT, the use of this
517 discriminant is really redundant, as we know from the type code
518 which field is going to be used. As such, it would be possible to
519 reduce the size of this enum in order to save a bit or two for
520 other fields of struct main_type. But, since we still have extra
521 room , and for the sake of clarity and consistency, we treat all fields
522 of the union the same way. */
524 enum type_specific_kind
527 TYPE_SPECIFIC_CPLUS_STUFF
,
528 TYPE_SPECIFIC_GNAT_STUFF
,
529 TYPE_SPECIFIC_FLOATFORMAT
,
530 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
532 TYPE_SPECIFIC_SELF_TYPE
537 struct objfile
*objfile
;
538 struct gdbarch
*gdbarch
;
543 /* * Position of this field, counting in bits from start of
544 containing structure. For gdbarch_bits_big_endian=1
545 targets, it is the bit offset to the MSB. For
546 gdbarch_bits_big_endian=0 targets, it is the bit offset to
554 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
555 physaddr is the location (in the target) of the static
556 field. Otherwise, physname is the mangled label of the
560 const char *physname
;
562 /* * The field location can be computed by evaluating the
563 following DWARF block. Its DATA is allocated on
564 objfile_obstack - no CU load is needed to access it. */
566 struct dwarf2_locexpr_baton
*dwarf_block
;
571 union field_location loc
;
573 /* * For a function or member type, this is 1 if the argument is
574 marked artificial. Artificial arguments should not be shown
575 to the user. For TYPE_CODE_RANGE it is set if the specific
576 bound is not defined. */
578 unsigned int artificial
: 1;
580 /* * Discriminant for union field_location. */
582 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
584 /* * Size of this field, in bits, or zero if not packed.
585 If non-zero in an array type, indicates the element size in
586 bits (used only in Ada at the moment).
587 For an unpacked field, the field's type's length
588 says how many bytes the field occupies. */
590 unsigned int bitsize
: 28;
592 /* * In a struct or union type, type of this field.
593 - In a function or member type, type of this argument.
594 - In an array type, the domain-type of the array. */
598 /* * Name of field, value or argument.
599 NULL for range bounds, array domains, and member function
607 /* * Low bound of range. */
609 struct dynamic_prop low
;
611 /* * High bound of range. */
613 struct dynamic_prop high
;
615 /* True if HIGH range bound contains the number of elements in the
616 subrange. This affects how the final hight bound is computed. */
618 int flag_upper_bound_is_count
: 1;
620 /* True if LOW or/and HIGH are resolved into a static bound from
623 int flag_bound_evaluated
: 1;
626 /* Compare two range_bounds objects for equality. Simply does
627 memberwise comparison. */
628 extern bool operator== (const range_bounds
&l
, const range_bounds
&r
);
630 /* Compare two range_bounds objects for inequality. */
631 static inline bool operator!= (const range_bounds
&l
, const range_bounds
&r
)
638 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
639 point to cplus_struct_default, a default static instance of a
640 struct cplus_struct_type. */
642 struct cplus_struct_type
*cplus_stuff
;
644 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
645 provides additional information. */
647 struct gnat_aux_type
*gnat_stuff
;
649 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a
650 floatformat object that describes the floating-point value
651 that resides within the type. */
653 const struct floatformat
*floatformat
;
655 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
657 struct func_type
*func_stuff
;
659 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
660 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
663 struct type
*self_type
;
666 /* * Main structure representing a type in GDB.
668 This structure is space-critical. Its layout has been tweaked to
669 reduce the space used. */
673 /* * Code for kind of type. */
675 ENUM_BITFIELD(type_code
) code
: 8;
677 /* * Flags about this type. These fields appear at this location
678 because they packs nicely here. See the TYPE_* macros for
679 documentation about these fields. */
681 unsigned int flag_unsigned
: 1;
682 unsigned int flag_nosign
: 1;
683 unsigned int flag_stub
: 1;
684 unsigned int flag_target_stub
: 1;
685 unsigned int flag_static
: 1;
686 unsigned int flag_prototyped
: 1;
687 unsigned int flag_incomplete
: 1;
688 unsigned int flag_varargs
: 1;
689 unsigned int flag_vector
: 1;
690 unsigned int flag_stub_supported
: 1;
691 unsigned int flag_gnu_ifunc
: 1;
692 unsigned int flag_fixed_instance
: 1;
693 unsigned int flag_objfile_owned
: 1;
695 /* * True if this type was declared with "class" rather than
698 unsigned int flag_declared_class
: 1;
700 /* * True if this is an enum type with disjoint values. This
701 affects how the enum is printed. */
703 unsigned int flag_flag_enum
: 1;
705 /* * True if this type is a discriminated union type. Only valid
706 for TYPE_CODE_UNION. A discriminated union stores a reference to
707 the discriminant field along with the discriminator values in a
710 unsigned int flag_discriminated_union
: 1;
712 /* * A discriminant telling us which field of the type_specific
713 union is being used for this type, if any. */
715 ENUM_BITFIELD(type_specific_kind
) type_specific_field
: 3;
717 /* * Number of fields described for this type. This field appears
718 at this location because it packs nicely here. */
722 /* * Name of this type, or NULL if none.
724 This is used for printing only, except by poorly designed C++
725 code. For looking up a name, look for a symbol in the
726 VAR_DOMAIN. This is generally allocated in the objfile's
727 obstack. However coffread.c uses malloc. */
731 /* * Tag name for this type, or NULL if none. This means that the
732 name of the type consists of a keyword followed by the tag name.
733 Which keyword is determined by the type code ("struct" for
734 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
735 languages with this feature.
737 This is used for printing only, except by poorly designed C++ code.
738 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
739 One more legitimate use is that if TYPE_STUB is set, this is
740 the name to use to look for definitions in other files. */
742 const char *tag_name
;
744 /* * Every type is now associated with a particular objfile, and the
745 type is allocated on the objfile_obstack for that objfile. One
746 problem however, is that there are times when gdb allocates new
747 types while it is not in the process of reading symbols from a
748 particular objfile. Fortunately, these happen when the type
749 being created is a derived type of an existing type, such as in
750 lookup_pointer_type(). So we can just allocate the new type
751 using the same objfile as the existing type, but to do this we
752 need a backpointer to the objfile from the existing type. Yes
753 this is somewhat ugly, but without major overhaul of the internal
754 type system, it can't be avoided for now. */
756 union type_owner owner
;
758 /* * For a pointer type, describes the type of object pointed to.
759 - For an array type, describes the type of the elements.
760 - For a function or method type, describes the type of the return value.
761 - For a range type, describes the type of the full range.
762 - For a complex type, describes the type of each coordinate.
763 - For a special record or union type encoding a dynamic-sized type
764 in GNAT, a memoized pointer to a corresponding static version of
766 - Unused otherwise. */
768 struct type
*target_type
;
770 /* * For structure and union types, a description of each field.
771 For set and pascal array types, there is one "field",
772 whose type is the domain type of the set or array.
773 For range types, there are two "fields",
774 the minimum and maximum values (both inclusive).
775 For enum types, each possible value is described by one "field".
776 For a function or method type, a "field" for each parameter.
777 For C++ classes, there is one field for each base class (if it is
778 a derived class) plus one field for each class data member. Member
779 functions are recorded elsewhere.
781 Using a pointer to a separate array of fields
782 allows all types to have the same size, which is useful
783 because we can allocate the space for a type before
784 we know what to put in it. */
788 struct field
*fields
;
790 /* * Union member used for range types. */
792 struct range_bounds
*bounds
;
796 /* * Slot to point to additional language-specific fields of this
799 union type_specific type_specific
;
801 /* * Contains all dynamic type properties. */
802 struct dynamic_prop_list
*dyn_prop_list
;
805 /* * A ``struct type'' describes a particular instance of a type, with
806 some particular qualification. */
810 /* * Type that is a pointer to this type.
811 NULL if no such pointer-to type is known yet.
812 The debugger may add the address of such a type
813 if it has to construct one later. */
815 struct type
*pointer_type
;
817 /* * C++: also need a reference type. */
819 struct type
*reference_type
;
821 /* * A C++ rvalue reference type added in C++11. */
823 struct type
*rvalue_reference_type
;
825 /* * Variant chain. This points to a type that differs from this
826 one only in qualifiers and length. Currently, the possible
827 qualifiers are const, volatile, code-space, data-space, and
828 address class. The length may differ only when one of the
829 address class flags are set. The variants are linked in a
830 circular ring and share MAIN_TYPE. */
834 /* * Flags specific to this instance of the type, indicating where
837 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
838 binary or-ed with the target type, with a special case for
839 address class and space class. For example if this typedef does
840 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
841 instance flags are completely inherited from the target type. No
842 qualifiers can be cleared by the typedef. See also
846 /* * Length of storage for a value of this type. The value is the
847 expression in host bytes of what sizeof(type) would return. This
848 size includes padding. For example, an i386 extended-precision
849 floating point value really only occupies ten bytes, but most
850 ABI's declare its size to be 12 bytes, to preserve alignment.
851 A `struct type' representing such a floating-point type would
852 have a `length' value of 12, even though the last two bytes are
855 Since this field is expressed in host bytes, its value is appropriate
856 to pass to memcpy and such (it is assumed that GDB itself always runs
857 on an 8-bits addressable architecture). However, when using it for
858 target address arithmetic (e.g. adding it to a target address), the
859 type_length_units function should be used in order to get the length
860 expressed in target addressable memory units. */
864 /* * Core type, shared by a group of qualified types. */
866 struct main_type
*main_type
;
869 #define NULL_TYPE ((struct type *) 0)
874 /* * The overloaded name.
875 This is generally allocated in the objfile's obstack.
876 However stabsread.c sometimes uses malloc. */
880 /* * The number of methods with this name. */
884 /* * The list of methods. */
886 struct fn_field
*fn_fields
;
893 /* * If is_stub is clear, this is the mangled name which we can look
894 up to find the address of the method (FIXME: it would be cleaner
895 to have a pointer to the struct symbol here instead).
897 If is_stub is set, this is the portion of the mangled name which
898 specifies the arguments. For example, "ii", if there are two int
899 arguments, or "" if there are no arguments. See gdb_mangle_name
900 for the conversion from this format to the one used if is_stub is
903 const char *physname
;
905 /* * The function type for the method.
907 (This comment used to say "The return value of the method", but
908 that's wrong. The function type is expected here, i.e. something
909 with TYPE_CODE_METHOD, and *not* the return-value type). */
913 /* * For virtual functions. First baseclass that defines this
916 struct type
*fcontext
;
920 unsigned int is_const
:1;
921 unsigned int is_volatile
:1;
922 unsigned int is_private
:1;
923 unsigned int is_protected
:1;
924 unsigned int is_artificial
:1;
926 /* * A stub method only has some fields valid (but they are enough
927 to reconstruct the rest of the fields). */
929 unsigned int is_stub
:1;
931 /* * True if this function is a constructor, false otherwise. */
933 unsigned int is_constructor
: 1;
937 unsigned int dummy
:9;
939 /* * Index into that baseclass's virtual function table, minus 2;
940 else if static: VOFFSET_STATIC; else: 0. */
942 unsigned int voffset
:16;
944 #define VOFFSET_STATIC 1
950 /* * Unqualified name to be prefixed by owning class qualified
955 /* * Type this typedef named NAME represents. */
959 /* * True if this field was declared protected, false otherwise. */
960 unsigned int is_protected
: 1;
962 /* * True if this field was declared private, false otherwise. */
963 unsigned int is_private
: 1;
966 /* * C++ language-specific information for TYPE_CODE_STRUCT and
967 TYPE_CODE_UNION nodes. */
969 struct cplus_struct_type
971 /* * Number of base classes this type derives from. The
972 baseclasses are stored in the first N_BASECLASSES fields
973 (i.e. the `fields' field of the struct type). The only fields
974 of struct field that are used are: type, name, loc.bitpos. */
978 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
979 All access to this field must be through TYPE_VPTR_FIELDNO as one
980 thing it does is check whether the field has been initialized.
981 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
982 which for portability reasons doesn't initialize this field.
983 TYPE_VPTR_FIELDNO returns -1 for this case.
985 If -1, we were unable to find the virtual function table pointer in
986 initial symbol reading, and get_vptr_fieldno should be called to find
987 it if possible. get_vptr_fieldno will update this field if possible.
988 Otherwise the value is left at -1.
990 Unused if this type does not have virtual functions. */
994 /* * Number of methods with unique names. All overloaded methods
995 with the same name count only once. */
999 /* * Number of template arguments. */
1001 unsigned short n_template_arguments
;
1003 /* * One if this struct is a dynamic class, as defined by the
1004 Itanium C++ ABI: if it requires a virtual table pointer,
1005 because it or any of its base classes have one or more virtual
1006 member functions or virtual base classes. Minus one if not
1007 dynamic. Zero if not yet computed. */
1011 /* * The base class which defined the virtual function table pointer. */
1013 struct type
*vptr_basetype
;
1015 /* * For derived classes, the number of base classes is given by
1016 n_baseclasses and virtual_field_bits is a bit vector containing
1017 one bit per base class. If the base class is virtual, the
1018 corresponding bit will be set.
1023 class C : public B, public virtual A {};
1025 B is a baseclass of C; A is a virtual baseclass for C.
1026 This is a C++ 2.0 language feature. */
1028 B_TYPE
*virtual_field_bits
;
1030 /* * For classes with private fields, the number of fields is
1031 given by nfields and private_field_bits is a bit vector
1032 containing one bit per field.
1034 If the field is private, the corresponding bit will be set. */
1036 B_TYPE
*private_field_bits
;
1038 /* * For classes with protected fields, the number of fields is
1039 given by nfields and protected_field_bits is a bit vector
1040 containing one bit per field.
1042 If the field is private, the corresponding bit will be set. */
1044 B_TYPE
*protected_field_bits
;
1046 /* * For classes with fields to be ignored, either this is
1047 optimized out or this field has length 0. */
1049 B_TYPE
*ignore_field_bits
;
1051 /* * For classes, structures, and unions, a description of each
1052 field, which consists of an overloaded name, followed by the
1053 types of arguments that the method expects, and then the name
1054 after it has been renamed to make it distinct.
1056 fn_fieldlists points to an array of nfn_fields of these. */
1058 struct fn_fieldlist
*fn_fieldlists
;
1060 /* * typedefs defined inside this class. typedef_field points to
1061 an array of typedef_field_count elements. */
1063 struct decl_field
*typedef_field
;
1065 unsigned typedef_field_count
;
1067 /* * The nested types defined by this type. nested_types points to
1068 an array of nested_types_count elements. */
1070 struct decl_field
*nested_types
;
1072 unsigned nested_types_count
;
1074 /* * The template arguments. This is an array with
1075 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
1078 struct symbol
**template_arguments
;
1081 /* * Struct used to store conversion rankings. */
1087 /* * When two conversions are of the same type and therefore have
1088 the same rank, subrank is used to differentiate the two.
1090 Eg: Two derived-class-pointer to base-class-pointer conversions
1091 would both have base pointer conversion rank, but the
1092 conversion with the shorter distance to the ancestor is
1093 preferable. 'subrank' would be used to reflect that. */
1098 /* * Struct used for ranking a function for overload resolution. */
1100 struct badness_vector
1106 /* * GNAT Ada-specific information for various Ada types. */
1108 struct gnat_aux_type
1110 /* * Parallel type used to encode information about dynamic types
1111 used in Ada (such as variant records, variable-size array,
1113 struct type
* descriptive_type
;
1116 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1120 /* * The calling convention for targets supporting multiple ABIs.
1121 Right now this is only fetched from the Dwarf-2
1122 DW_AT_calling_convention attribute. The value is one of the
1123 DW_CC enum dwarf_calling_convention constants. */
1125 unsigned calling_convention
: 8;
1127 /* * Whether this function normally returns to its caller. It is
1128 set from the DW_AT_noreturn attribute if set on the
1129 DW_TAG_subprogram. */
1131 unsigned int is_noreturn
: 1;
1133 /* * Only those DW_TAG_call_site's in this function that have
1134 DW_AT_call_tail_call set are linked in this list. Function
1135 without its tail call list complete
1136 (DW_AT_call_all_tail_calls or its superset
1137 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1138 DW_TAG_call_site's exist in such function. */
1140 struct call_site
*tail_call_list
;
1142 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1143 contains the method. */
1145 struct type
*self_type
;
1148 /* struct call_site_parameter can be referenced in callees by several ways. */
1150 enum call_site_parameter_kind
1152 /* * Use field call_site_parameter.u.dwarf_reg. */
1153 CALL_SITE_PARAMETER_DWARF_REG
,
1155 /* * Use field call_site_parameter.u.fb_offset. */
1156 CALL_SITE_PARAMETER_FB_OFFSET
,
1158 /* * Use field call_site_parameter.u.param_offset. */
1159 CALL_SITE_PARAMETER_PARAM_OFFSET
1162 struct call_site_target
1164 union field_location loc
;
1166 /* * Discriminant for union field_location. */
1168 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
1171 union call_site_parameter_u
1173 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1174 as DWARF register number, for register passed
1179 /* * Offset from the callee's frame base, for stack passed
1180 parameters. This equals offset from the caller's stack
1183 CORE_ADDR fb_offset
;
1185 /* * Offset relative to the start of this PER_CU to
1186 DW_TAG_formal_parameter which is referenced by both
1187 caller and the callee. */
1189 cu_offset param_cu_off
;
1192 struct call_site_parameter
1194 ENUM_BITFIELD (call_site_parameter_kind
) kind
: 2;
1196 union call_site_parameter_u u
;
1198 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1200 const gdb_byte
*value
;
1203 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1204 It may be NULL if not provided by DWARF. */
1206 const gdb_byte
*data_value
;
1207 size_t data_value_size
;
1210 /* * A place where a function gets called from, represented by
1211 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1215 /* * Address of the first instruction after this call. It must be
1216 the first field as we overload core_addr_hash and core_addr_eq
1221 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1223 struct call_site
*tail_call_next
;
1225 /* * Describe DW_AT_call_target. Missing attribute uses
1226 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1228 struct call_site_target target
;
1230 /* * Size of the PARAMETER array. */
1232 unsigned parameter_count
;
1234 /* * CU of the function where the call is located. It gets used
1235 for DWARF blocks execution in the parameter array below. */
1237 struct dwarf2_per_cu_data
*per_cu
;
1239 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1241 struct call_site_parameter parameter
[1];
1244 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1245 static structure. */
1247 extern const struct cplus_struct_type cplus_struct_default
;
1249 extern void allocate_cplus_struct_type (struct type
*);
1251 #define INIT_CPLUS_SPECIFIC(type) \
1252 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1253 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1254 &cplus_struct_default)
1256 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1258 #define HAVE_CPLUS_STRUCT(type) \
1259 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1260 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1262 extern const struct gnat_aux_type gnat_aux_default
;
1264 extern void allocate_gnat_aux_type (struct type
*);
1266 #define INIT_GNAT_SPECIFIC(type) \
1267 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1268 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1269 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1270 /* * A macro that returns non-zero if the type-specific data should be
1271 read as "gnat-stuff". */
1272 #define HAVE_GNAT_AUX_INFO(type) \
1273 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1275 #define INIT_FUNC_SPECIFIC(type) \
1276 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1277 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1278 TYPE_ZALLOC (type, \
1279 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1281 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1282 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1283 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1284 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1285 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1286 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1287 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1288 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1289 #define TYPE_CHAIN(thistype) (thistype)->chain
1290 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1291 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1292 so you only have to call check_typedef once. Since allocate_value
1293 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1294 #define TYPE_LENGTH(thistype) (thistype)->length
1295 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1296 type, you need to do TYPE_CODE (check_type (this_type)). */
1297 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1298 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1299 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1301 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1302 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1303 #define TYPE_LOW_BOUND(range_type) \
1304 TYPE_RANGE_DATA(range_type)->low.data.const_val
1305 #define TYPE_HIGH_BOUND(range_type) \
1306 TYPE_RANGE_DATA(range_type)->high.data.const_val
1307 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1308 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1309 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1310 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1311 #define TYPE_HIGH_BOUND_KIND(range_type) \
1312 TYPE_RANGE_DATA(range_type)->high.kind
1313 #define TYPE_LOW_BOUND_KIND(range_type) \
1314 TYPE_RANGE_DATA(range_type)->low.kind
1316 /* Property accessors for the type data location. */
1317 #define TYPE_DATA_LOCATION(thistype) \
1318 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1319 #define TYPE_DATA_LOCATION_BATON(thistype) \
1320 TYPE_DATA_LOCATION (thistype)->data.baton
1321 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1322 TYPE_DATA_LOCATION (thistype)->data.const_val
1323 #define TYPE_DATA_LOCATION_KIND(thistype) \
1324 TYPE_DATA_LOCATION (thistype)->kind
1326 /* Property accessors for the type allocated/associated. */
1327 #define TYPE_ALLOCATED_PROP(thistype) \
1328 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1329 #define TYPE_ASSOCIATED_PROP(thistype) \
1330 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1332 /* Attribute accessors for dynamic properties. */
1333 #define TYPE_DYN_PROP_LIST(thistype) \
1334 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1335 #define TYPE_DYN_PROP_BATON(dynprop) \
1337 #define TYPE_DYN_PROP_ADDR(dynprop) \
1338 dynprop->data.const_val
1339 #define TYPE_DYN_PROP_KIND(dynprop) \
1343 /* Moto-specific stuff for FORTRAN arrays. */
1345 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1346 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1347 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1348 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1350 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1351 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1353 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1354 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1358 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1359 /* Do not call this, use TYPE_SELF_TYPE. */
1360 extern struct type
*internal_type_self_type (struct type
*);
1361 extern void set_type_self_type (struct type
*, struct type
*);
1363 extern int internal_type_vptr_fieldno (struct type
*);
1364 extern void set_type_vptr_fieldno (struct type
*, int);
1365 extern struct type
*internal_type_vptr_basetype (struct type
*);
1366 extern void set_type_vptr_basetype (struct type
*, struct type
*);
1367 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1368 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1370 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1371 #define TYPE_SPECIFIC_FIELD(thistype) \
1372 TYPE_MAIN_TYPE(thistype)->type_specific_field
1373 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1374 where we're trying to print an Ada array using the C language.
1375 In that case, there is no "cplus_stuff", but the C language assumes
1376 that there is. What we do, in that case, is pretend that there is
1377 an implicit one which is the default cplus stuff. */
1378 #define TYPE_CPLUS_SPECIFIC(thistype) \
1379 (!HAVE_CPLUS_STRUCT(thistype) \
1380 ? (struct cplus_struct_type*)&cplus_struct_default \
1381 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1382 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1383 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1384 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1385 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1386 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1387 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1388 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1389 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1390 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1391 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1392 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1393 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1394 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1395 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1397 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1398 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1399 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1401 #define FIELD_TYPE(thisfld) ((thisfld).type)
1402 #define FIELD_NAME(thisfld) ((thisfld).name)
1403 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1404 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1405 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1406 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1407 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1408 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1409 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1410 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1411 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1412 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1413 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1414 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1415 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1416 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1417 #define SET_FIELD_PHYSNAME(thisfld, name) \
1418 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1419 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1420 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1421 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1422 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1423 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1424 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1425 FIELD_DWARF_BLOCK (thisfld) = (addr))
1426 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1427 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1429 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1430 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1431 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1432 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1433 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1434 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1435 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1436 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1437 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1438 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1439 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1440 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1442 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1443 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1444 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1445 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1446 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1447 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1448 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1449 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1450 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1451 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1452 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1453 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1454 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1455 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1456 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1457 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1458 #define TYPE_FIELD_PRIVATE(thistype, n) \
1459 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1460 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1461 #define TYPE_FIELD_PROTECTED(thistype, n) \
1462 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1463 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1464 #define TYPE_FIELD_IGNORE(thistype, n) \
1465 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1466 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1467 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1468 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1469 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1471 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1472 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1473 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1474 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1475 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1477 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1478 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1479 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1480 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1481 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1482 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1484 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1485 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1486 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1487 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1488 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1489 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1490 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1491 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1492 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1493 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1494 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1495 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1496 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1497 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1498 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1500 /* Accessors for typedefs defined by a class. */
1501 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1502 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1503 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1504 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1505 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1506 TYPE_TYPEDEF_FIELD (thistype, n).name
1507 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1508 TYPE_TYPEDEF_FIELD (thistype, n).type
1509 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1510 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1511 #define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \
1512 TYPE_TYPEDEF_FIELD (thistype, n).is_protected
1513 #define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
1514 TYPE_TYPEDEF_FIELD (thistype, n).is_private
1516 #define TYPE_NESTED_TYPES_ARRAY(thistype) \
1517 TYPE_CPLUS_SPECIFIC (thistype)->nested_types
1518 #define TYPE_NESTED_TYPES_FIELD(thistype, n) \
1519 TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n]
1520 #define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \
1521 TYPE_NESTED_TYPES_FIELD (thistype, n).name
1522 #define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \
1523 TYPE_NESTED_TYPES_FIELD (thistype, n).type
1524 #define TYPE_NESTED_TYPES_COUNT(thistype) \
1525 TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count
1526 #define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \
1527 TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected
1528 #define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
1529 TYPE_NESTED_TYPES_FIELD (thistype, n).is_private
1531 #define TYPE_IS_OPAQUE(thistype) \
1532 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1533 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1534 && (TYPE_NFIELDS (thistype) == 0) \
1535 && (!HAVE_CPLUS_STRUCT (thistype) \
1536 || TYPE_NFN_FIELDS (thistype) == 0) \
1537 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1539 /* * A helper macro that returns the name of a type or "unnamed type"
1540 if the type has no name. */
1542 #define TYPE_SAFE_NAME(type) \
1543 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1545 /* * A helper macro that returns the name of an error type. If the
1546 type has a name, it is used; otherwise, a default is used. */
1548 #define TYPE_ERROR_NAME(type) \
1549 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1551 /* Given TYPE, return its floatformat. */
1552 const struct floatformat
*floatformat_from_type (const struct type
*type
);
1556 /* Integral types. */
1558 /* Implicit size/sign (based on the architecture's ABI). */
1559 struct type
*builtin_void
;
1560 struct type
*builtin_char
;
1561 struct type
*builtin_short
;
1562 struct type
*builtin_int
;
1563 struct type
*builtin_long
;
1564 struct type
*builtin_signed_char
;
1565 struct type
*builtin_unsigned_char
;
1566 struct type
*builtin_unsigned_short
;
1567 struct type
*builtin_unsigned_int
;
1568 struct type
*builtin_unsigned_long
;
1569 struct type
*builtin_float
;
1570 struct type
*builtin_double
;
1571 struct type
*builtin_long_double
;
1572 struct type
*builtin_complex
;
1573 struct type
*builtin_double_complex
;
1574 struct type
*builtin_string
;
1575 struct type
*builtin_bool
;
1576 struct type
*builtin_long_long
;
1577 struct type
*builtin_unsigned_long_long
;
1578 struct type
*builtin_decfloat
;
1579 struct type
*builtin_decdouble
;
1580 struct type
*builtin_declong
;
1582 /* "True" character types.
1583 We use these for the '/c' print format, because c_char is just a
1584 one-byte integral type, which languages less laid back than C
1585 will print as ... well, a one-byte integral type. */
1586 struct type
*builtin_true_char
;
1587 struct type
*builtin_true_unsigned_char
;
1589 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1590 is for when an architecture needs to describe a register that has
1592 struct type
*builtin_int0
;
1593 struct type
*builtin_int8
;
1594 struct type
*builtin_uint8
;
1595 struct type
*builtin_int16
;
1596 struct type
*builtin_uint16
;
1597 struct type
*builtin_int32
;
1598 struct type
*builtin_uint32
;
1599 struct type
*builtin_int64
;
1600 struct type
*builtin_uint64
;
1601 struct type
*builtin_int128
;
1602 struct type
*builtin_uint128
;
1604 /* Wide character types. */
1605 struct type
*builtin_char16
;
1606 struct type
*builtin_char32
;
1607 struct type
*builtin_wchar
;
1609 /* Pointer types. */
1611 /* * `pointer to data' type. Some target platforms use an implicitly
1612 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1613 struct type
*builtin_data_ptr
;
1615 /* * `pointer to function (returning void)' type. Harvard
1616 architectures mean that ABI function and code pointers are not
1617 interconvertible. Similarly, since ANSI, C standards have
1618 explicitly said that pointers to functions and pointers to data
1619 are not interconvertible --- that is, you can't cast a function
1620 pointer to void * and back, and expect to get the same value.
1621 However, all function pointer types are interconvertible, so void
1622 (*) () can server as a generic function pointer. */
1624 struct type
*builtin_func_ptr
;
1626 /* * `function returning pointer to function (returning void)' type.
1627 The final void return type is not significant for it. */
1629 struct type
*builtin_func_func
;
1631 /* Special-purpose types. */
1633 /* * This type is used to represent a GDB internal function. */
1635 struct type
*internal_fn
;
1637 /* * This type is used to represent an xmethod. */
1638 struct type
*xmethod
;
1641 /* * Return the type table for the specified architecture. */
1643 extern const struct builtin_type
*builtin_type (struct gdbarch
*gdbarch
);
1645 /* * Per-objfile types used by symbol readers. */
1649 /* Basic types based on the objfile architecture. */
1650 struct type
*builtin_void
;
1651 struct type
*builtin_char
;
1652 struct type
*builtin_short
;
1653 struct type
*builtin_int
;
1654 struct type
*builtin_long
;
1655 struct type
*builtin_long_long
;
1656 struct type
*builtin_signed_char
;
1657 struct type
*builtin_unsigned_char
;
1658 struct type
*builtin_unsigned_short
;
1659 struct type
*builtin_unsigned_int
;
1660 struct type
*builtin_unsigned_long
;
1661 struct type
*builtin_unsigned_long_long
;
1662 struct type
*builtin_float
;
1663 struct type
*builtin_double
;
1664 struct type
*builtin_long_double
;
1666 /* * This type is used to represent symbol addresses. */
1667 struct type
*builtin_core_addr
;
1669 /* * This type represents a type that was unrecognized in symbol
1671 struct type
*builtin_error
;
1673 /* * Types used for symbols with no debug information. */
1674 struct type
*nodebug_text_symbol
;
1675 struct type
*nodebug_text_gnu_ifunc_symbol
;
1676 struct type
*nodebug_got_plt_symbol
;
1677 struct type
*nodebug_data_symbol
;
1678 struct type
*nodebug_unknown_symbol
;
1679 struct type
*nodebug_tls_symbol
;
1682 /* * Return the type table for the specified objfile. */
1684 extern const struct objfile_type
*objfile_type (struct objfile
*objfile
);
1686 /* Explicit floating-point formats. See "floatformat.h". */
1687 extern const struct floatformat
*floatformats_ieee_half
[BFD_ENDIAN_UNKNOWN
];
1688 extern const struct floatformat
*floatformats_ieee_single
[BFD_ENDIAN_UNKNOWN
];
1689 extern const struct floatformat
*floatformats_ieee_double
[BFD_ENDIAN_UNKNOWN
];
1690 extern const struct floatformat
*floatformats_ieee_double_littlebyte_bigword
[BFD_ENDIAN_UNKNOWN
];
1691 extern const struct floatformat
*floatformats_i387_ext
[BFD_ENDIAN_UNKNOWN
];
1692 extern const struct floatformat
*floatformats_m68881_ext
[BFD_ENDIAN_UNKNOWN
];
1693 extern const struct floatformat
*floatformats_arm_ext
[BFD_ENDIAN_UNKNOWN
];
1694 extern const struct floatformat
*floatformats_ia64_spill
[BFD_ENDIAN_UNKNOWN
];
1695 extern const struct floatformat
*floatformats_ia64_quad
[BFD_ENDIAN_UNKNOWN
];
1696 extern const struct floatformat
*floatformats_vax_f
[BFD_ENDIAN_UNKNOWN
];
1697 extern const struct floatformat
*floatformats_vax_d
[BFD_ENDIAN_UNKNOWN
];
1698 extern const struct floatformat
*floatformats_ibm_long_double
[BFD_ENDIAN_UNKNOWN
];
1701 /* * Allocate space for storing data associated with a particular
1702 type. We ensure that the space is allocated using the same
1703 mechanism that was used to allocate the space for the type
1704 structure itself. I.e. if the type is on an objfile's
1705 objfile_obstack, then the space for data associated with that type
1706 will also be allocated on the objfile_obstack. If the type is not
1707 associated with any particular objfile (such as builtin types),
1708 then the data space will be allocated with xmalloc, the same as for
1709 the type structure. */
1711 #define TYPE_ALLOC(t,size) \
1712 (TYPE_OBJFILE_OWNED (t) \
1713 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1716 #define TYPE_ZALLOC(t,size) \
1717 (TYPE_OBJFILE_OWNED (t) \
1718 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1722 /* Use alloc_type to allocate a type owned by an objfile. Use
1723 alloc_type_arch to allocate a type owned by an architecture. Use
1724 alloc_type_copy to allocate a type with the same owner as a
1725 pre-existing template type, no matter whether objfile or
1727 extern struct type
*alloc_type (struct objfile
*);
1728 extern struct type
*alloc_type_arch (struct gdbarch
*);
1729 extern struct type
*alloc_type_copy (const struct type
*);
1731 /* * Return the type's architecture. For types owned by an
1732 architecture, that architecture is returned. For types owned by an
1733 objfile, that objfile's architecture is returned. */
1735 extern struct gdbarch
*get_type_arch (const struct type
*);
1737 /* * This returns the target type (or NULL) of TYPE, also skipping
1740 extern struct type
*get_target_type (struct type
*type
);
1742 /* Return the equivalent of TYPE_LENGTH, but in number of target
1743 addressable memory units of the associated gdbarch instead of bytes. */
1745 extern unsigned int type_length_units (struct type
*type
);
1747 /* * Helper function to construct objfile-owned types. */
1749 extern struct type
*init_type (struct objfile
*, enum type_code
, int,
1751 extern struct type
*init_integer_type (struct objfile
*, int, int,
1753 extern struct type
*init_character_type (struct objfile
*, int, int,
1755 extern struct type
*init_boolean_type (struct objfile
*, int, int,
1757 extern struct type
*init_float_type (struct objfile
*, int, const char *,
1758 const struct floatformat
**);
1759 extern struct type
*init_decfloat_type (struct objfile
*, int, const char *);
1760 extern struct type
*init_complex_type (struct objfile
*, const char *,
1762 extern struct type
*init_pointer_type (struct objfile
*, int, const char *,
1765 /* Helper functions to construct architecture-owned types. */
1766 extern struct type
*arch_type (struct gdbarch
*, enum type_code
, int,
1768 extern struct type
*arch_integer_type (struct gdbarch
*, int, int,
1770 extern struct type
*arch_character_type (struct gdbarch
*, int, int,
1772 extern struct type
*arch_boolean_type (struct gdbarch
*, int, int,
1774 extern struct type
*arch_float_type (struct gdbarch
*, int, const char *,
1775 const struct floatformat
**);
1776 extern struct type
*arch_decfloat_type (struct gdbarch
*, int, const char *);
1777 extern struct type
*arch_complex_type (struct gdbarch
*, const char *,
1779 extern struct type
*arch_pointer_type (struct gdbarch
*, int, const char *,
1782 /* Helper functions to construct a struct or record type. An
1783 initially empty type is created using arch_composite_type().
1784 Fields are then added using append_composite_type_field*(). A union
1785 type has its size set to the largest field. A struct type has each
1786 field packed against the previous. */
1788 extern struct type
*arch_composite_type (struct gdbarch
*gdbarch
,
1789 const char *name
, enum type_code code
);
1790 extern void append_composite_type_field (struct type
*t
, const char *name
,
1791 struct type
*field
);
1792 extern void append_composite_type_field_aligned (struct type
*t
,
1796 struct field
*append_composite_type_field_raw (struct type
*t
, const char *name
,
1797 struct type
*field
);
1799 /* Helper functions to construct a bit flags type. An initially empty
1800 type is created using arch_flag_type(). Flags are then added using
1801 append_flag_type_field() and append_flag_type_flag(). */
1802 extern struct type
*arch_flags_type (struct gdbarch
*gdbarch
,
1803 const char *name
, int bit
);
1804 extern void append_flags_type_field (struct type
*type
,
1805 int start_bitpos
, int nr_bits
,
1806 struct type
*field_type
, const char *name
);
1807 extern void append_flags_type_flag (struct type
*type
, int bitpos
,
1810 extern void make_vector_type (struct type
*array_type
);
1811 extern struct type
*init_vector_type (struct type
*elt_type
, int n
);
1813 extern struct type
*lookup_reference_type (struct type
*, enum type_code
);
1814 extern struct type
*lookup_lvalue_reference_type (struct type
*);
1815 extern struct type
*lookup_rvalue_reference_type (struct type
*);
1818 extern struct type
*make_reference_type (struct type
*, struct type
**,
1821 extern struct type
*make_cv_type (int, int, struct type
*, struct type
**);
1823 extern struct type
*make_restrict_type (struct type
*);
1825 extern struct type
*make_unqualified_type (struct type
*);
1827 extern struct type
*make_atomic_type (struct type
*);
1829 extern void replace_type (struct type
*, struct type
*);
1831 extern int address_space_name_to_int (struct gdbarch
*, char *);
1833 extern const char *address_space_int_to_name (struct gdbarch
*, int);
1835 extern struct type
*make_type_with_address_space (struct type
*type
,
1836 int space_identifier
);
1838 extern struct type
*lookup_memberptr_type (struct type
*, struct type
*);
1840 extern struct type
*lookup_methodptr_type (struct type
*);
1842 extern void smash_to_method_type (struct type
*type
, struct type
*self_type
,
1843 struct type
*to_type
, struct field
*args
,
1844 int nargs
, int varargs
);
1846 extern void smash_to_memberptr_type (struct type
*, struct type
*,
1849 extern void smash_to_methodptr_type (struct type
*, struct type
*);
1851 extern struct type
*allocate_stub_method (struct type
*);
1853 extern const char *type_name_no_tag (const struct type
*);
1855 extern const char *type_name_no_tag_or_error (struct type
*type
);
1857 extern struct type
*lookup_struct_elt_type (struct type
*, const char *, int);
1859 extern struct type
*make_pointer_type (struct type
*, struct type
**);
1861 extern struct type
*lookup_pointer_type (struct type
*);
1863 extern struct type
*make_function_type (struct type
*, struct type
**);
1865 extern struct type
*lookup_function_type (struct type
*);
1867 extern struct type
*lookup_function_type_with_arguments (struct type
*,
1871 extern struct type
*create_static_range_type (struct type
*, struct type
*,
1875 extern struct type
*create_array_type_with_stride
1876 (struct type
*, struct type
*, struct type
*,
1877 struct dynamic_prop
*, unsigned int);
1879 extern struct type
*create_range_type (struct type
*, struct type
*,
1880 const struct dynamic_prop
*,
1881 const struct dynamic_prop
*);
1883 extern struct type
*create_array_type (struct type
*, struct type
*,
1886 extern struct type
*lookup_array_range_type (struct type
*, LONGEST
, LONGEST
);
1888 extern struct type
*create_string_type (struct type
*, struct type
*,
1890 extern struct type
*lookup_string_range_type (struct type
*, LONGEST
, LONGEST
);
1892 extern struct type
*create_set_type (struct type
*, struct type
*);
1894 extern struct type
*lookup_unsigned_typename (const struct language_defn
*,
1895 struct gdbarch
*, const char *);
1897 extern struct type
*lookup_signed_typename (const struct language_defn
*,
1898 struct gdbarch
*, const char *);
1900 extern void get_unsigned_type_max (struct type
*, ULONGEST
*);
1902 extern void get_signed_type_minmax (struct type
*, LONGEST
*, LONGEST
*);
1904 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1905 ADDR specifies the location of the variable the type is bound to.
1906 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1907 static properties is returned. */
1908 extern struct type
*resolve_dynamic_type (struct type
*type
,
1909 const gdb_byte
*valaddr
,
1912 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1913 extern int is_dynamic_type (struct type
*type
);
1915 /* * Return the dynamic property of the requested KIND from TYPE's
1916 list of dynamic properties. */
1917 extern struct dynamic_prop
*get_dyn_prop
1918 (enum dynamic_prop_node_kind kind
, const struct type
*type
);
1920 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1921 property to the given TYPE.
1923 This function assumes that TYPE is objfile-owned. */
1924 extern void add_dyn_prop
1925 (enum dynamic_prop_node_kind kind
, struct dynamic_prop prop
,
1928 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind
,
1931 extern struct type
*check_typedef (struct type
*);
1933 extern void check_stub_method_group (struct type
*, int);
1935 extern char *gdb_mangle_name (struct type
*, int, int);
1937 extern struct type
*lookup_typename (const struct language_defn
*,
1938 struct gdbarch
*, const char *,
1939 const struct block
*, int);
1941 extern struct type
*lookup_template_type (char *, struct type
*,
1942 const struct block
*);
1944 extern int get_vptr_fieldno (struct type
*, struct type
**);
1946 extern int get_discrete_bounds (struct type
*, LONGEST
*, LONGEST
*);
1948 extern int get_array_bounds (struct type
*type
, LONGEST
*low_bound
,
1949 LONGEST
*high_bound
);
1951 extern int discrete_position (struct type
*type
, LONGEST val
, LONGEST
*pos
);
1953 extern int class_types_same_p (const struct type
*, const struct type
*);
1955 extern int is_ancestor (struct type
*, struct type
*);
1957 extern int is_public_ancestor (struct type
*, struct type
*);
1959 extern int is_unique_ancestor (struct type
*, struct value
*);
1961 /* Overload resolution */
1963 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1965 /* * Badness if parameter list length doesn't match arg list length. */
1966 extern const struct rank LENGTH_MISMATCH_BADNESS
;
1968 /* * Dummy badness value for nonexistent parameter positions. */
1969 extern const struct rank TOO_FEW_PARAMS_BADNESS
;
1970 /* * Badness if no conversion among types. */
1971 extern const struct rank INCOMPATIBLE_TYPE_BADNESS
;
1973 /* * Badness of an exact match. */
1974 extern const struct rank EXACT_MATCH_BADNESS
;
1976 /* * Badness of integral promotion. */
1977 extern const struct rank INTEGER_PROMOTION_BADNESS
;
1978 /* * Badness of floating promotion. */
1979 extern const struct rank FLOAT_PROMOTION_BADNESS
;
1980 /* * Badness of converting a derived class pointer
1981 to a base class pointer. */
1982 extern const struct rank BASE_PTR_CONVERSION_BADNESS
;
1983 /* * Badness of integral conversion. */
1984 extern const struct rank INTEGER_CONVERSION_BADNESS
;
1985 /* * Badness of floating conversion. */
1986 extern const struct rank FLOAT_CONVERSION_BADNESS
;
1987 /* * Badness of integer<->floating conversions. */
1988 extern const struct rank INT_FLOAT_CONVERSION_BADNESS
;
1989 /* * Badness of conversion of pointer to void pointer. */
1990 extern const struct rank VOID_PTR_CONVERSION_BADNESS
;
1991 /* * Badness of conversion to boolean. */
1992 extern const struct rank BOOL_CONVERSION_BADNESS
;
1993 /* * Badness of converting derived to base class. */
1994 extern const struct rank BASE_CONVERSION_BADNESS
;
1995 /* * Badness of converting from non-reference to reference. Subrank
1996 is the type of reference conversion being done. */
1997 extern const struct rank REFERENCE_CONVERSION_BADNESS
;
1998 /* * Conversion to rvalue reference. */
1999 #define REFERENCE_CONVERSION_RVALUE 1
2000 /* * Conversion to const lvalue reference. */
2001 #define REFERENCE_CONVERSION_CONST_LVALUE 2
2003 /* * Badness of converting integer 0 to NULL pointer. */
2004 extern const struct rank NULL_POINTER_CONVERSION
;
2005 /* * Badness of cv-conversion. Subrank is a flag describing the conversions
2007 extern const struct rank CV_CONVERSION_BADNESS
;
2008 #define CV_CONVERSION_CONST 1
2009 #define CV_CONVERSION_VOLATILE 2
2011 /* Non-standard conversions allowed by the debugger */
2013 /* * Converting a pointer to an int is usually OK. */
2014 extern const struct rank NS_POINTER_CONVERSION_BADNESS
;
2016 /* * Badness of converting a (non-zero) integer constant
2018 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS
;
2020 extern struct rank
sum_ranks (struct rank a
, struct rank b
);
2021 extern int compare_ranks (struct rank a
, struct rank b
);
2023 extern int compare_badness (struct badness_vector
*, struct badness_vector
*);
2025 extern struct badness_vector
*rank_function (struct type
**, int,
2026 struct value
**, int);
2028 extern struct rank
rank_one_type (struct type
*, struct type
*,
2031 extern void recursive_dump_type (struct type
*, int);
2033 extern int field_is_static (struct field
*);
2037 extern void print_scalar_formatted (const gdb_byte
*, struct type
*,
2038 const struct value_print_options
*,
2039 int, struct ui_file
*);
2041 extern int can_dereference (struct type
*);
2043 extern int is_integral_type (struct type
*);
2045 extern int is_floating_type (struct type
*);
2047 extern int is_scalar_type (struct type
*type
);
2049 extern int is_scalar_type_recursive (struct type
*);
2051 extern int class_or_union_p (const struct type
*);
2053 extern void maintenance_print_type (const char *, int);
2055 extern htab_t
create_copied_types_hash (struct objfile
*objfile
);
2057 extern struct type
*copy_type_recursive (struct objfile
*objfile
,
2059 htab_t copied_types
);
2061 extern struct type
*copy_type (const struct type
*type
);
2063 extern int types_equal (struct type
*, struct type
*);
2065 extern int types_deeply_equal (struct type
*, struct type
*);
2067 extern int type_not_allocated (const struct type
*type
);
2069 extern int type_not_associated (const struct type
*type
);
2071 #endif /* GDBTYPES_H */