2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2021 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 "gdbsupport/array-view.h"
49 #include "gdbsupport/gdb_optional.h"
50 #include "gdbsupport/offset-type.h"
51 #include "gdbsupport/enum-flags.h"
52 #include "gdbsupport/underlying.h"
53 #include "gdbsupport/print-utils.h"
55 #include "gdb_obstack.h"
56 #include "gmp-utils.h"
58 /* Forward declarations for prototypes. */
61 struct value_print_options
;
63 struct dwarf2_per_cu_data
;
64 struct dwarf2_per_objfile
;
66 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
67 are already DWARF-specific. */
69 /* * Offset relative to the start of its containing CU (compilation
71 DEFINE_OFFSET_TYPE (cu_offset
, unsigned int);
73 /* * Offset relative to the start of its .debug_info or .debug_types
75 DEFINE_OFFSET_TYPE (sect_offset
, uint64_t);
78 sect_offset_str (sect_offset offset
)
80 return hex_string (to_underlying (offset
));
83 /* Some macros for char-based bitfields. */
85 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
86 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
87 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
88 #define B_TYPE unsigned char
89 #define B_BYTES(x) ( 1 + ((x)>>3) )
90 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
92 /* * Different kinds of data types are distinguished by the `code'
97 TYPE_CODE_BITSTRING
= -1, /**< Deprecated */
98 TYPE_CODE_UNDEF
= 0, /**< Not used; catches errors */
99 TYPE_CODE_PTR
, /**< Pointer type */
101 /* * Array type with lower & upper bounds.
103 Regardless of the language, GDB represents multidimensional
104 array types the way C does: as arrays of arrays. So an
105 instance of a GDB array type T can always be seen as a series
106 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
109 Row-major languages like C lay out multi-dimensional arrays so
110 that incrementing the rightmost index in a subscripting
111 expression results in the smallest change in the address of the
112 element referred to. Column-major languages like Fortran lay
113 them out so that incrementing the leftmost index results in the
116 This means that, in column-major languages, working our way
117 from type to target type corresponds to working through indices
118 from right to left, not left to right. */
121 TYPE_CODE_STRUCT
, /**< C struct or Pascal record */
122 TYPE_CODE_UNION
, /**< C union or Pascal variant part */
123 TYPE_CODE_ENUM
, /**< Enumeration type */
124 TYPE_CODE_FLAGS
, /**< Bit flags type */
125 TYPE_CODE_FUNC
, /**< Function type */
126 TYPE_CODE_INT
, /**< Integer type */
128 /* * Floating type. This is *NOT* a complex type. */
131 /* * Void type. The length field specifies the length (probably
132 always one) which is used in pointer arithmetic involving
133 pointers to this type, but actually dereferencing such a
134 pointer is invalid; a void type has no length and no actual
135 representation in memory or registers. A pointer to a void
136 type is a generic pointer. */
139 TYPE_CODE_SET
, /**< Pascal sets */
140 TYPE_CODE_RANGE
, /**< Range (integers within spec'd bounds). */
142 /* * A string type which is like an array of character but prints
143 differently. It does not contain a length field as Pascal
144 strings (for many Pascals, anyway) do; if we want to deal with
145 such strings, we should use a new type code. */
148 /* * Unknown type. The length field is valid if we were able to
149 deduce that much about the type, or 0 if we don't even know
154 TYPE_CODE_METHOD
, /**< Method type */
156 /* * Pointer-to-member-function type. This describes how to access a
157 particular member function of a class (possibly a virtual
158 member function). The representation may vary between different
162 /* * Pointer-to-member type. This is the offset within a class to
163 some particular data member. The only currently supported
164 representation uses an unbiased offset, with -1 representing
165 NULL; this is used by the Itanium C++ ABI (used by GCC on all
169 TYPE_CODE_REF
, /**< C++ Reference types */
171 TYPE_CODE_RVALUE_REF
, /**< C++ rvalue reference types */
173 TYPE_CODE_CHAR
, /**< *real* character type */
175 /* * Boolean type. 0 is false, 1 is true, and other values are
176 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
180 TYPE_CODE_COMPLEX
, /**< Complex float */
184 TYPE_CODE_NAMESPACE
, /**< C++ namespace. */
186 TYPE_CODE_DECFLOAT
, /**< Decimal floating point. */
188 TYPE_CODE_MODULE
, /**< Fortran module. */
190 /* * Internal function type. */
191 TYPE_CODE_INTERNAL_FUNCTION
,
193 /* * Methods implemented in extension languages. */
196 /* * Fixed Point type. */
197 TYPE_CODE_FIXED_POINT
,
200 /* * Some bits for the type's instance_flags word. See the macros
201 below for documentation on each bit. */
203 enum type_instance_flag_value
: unsigned
205 TYPE_INSTANCE_FLAG_CONST
= (1 << 0),
206 TYPE_INSTANCE_FLAG_VOLATILE
= (1 << 1),
207 TYPE_INSTANCE_FLAG_CODE_SPACE
= (1 << 2),
208 TYPE_INSTANCE_FLAG_DATA_SPACE
= (1 << 3),
209 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1
= (1 << 4),
210 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2
= (1 << 5),
211 TYPE_INSTANCE_FLAG_NOTTEXT
= (1 << 6),
212 TYPE_INSTANCE_FLAG_RESTRICT
= (1 << 7),
213 TYPE_INSTANCE_FLAG_ATOMIC
= (1 << 8)
216 DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value
, type_instance_flags
);
218 /* * Not textual. By default, GDB treats all single byte integers as
219 characters (or elements of strings) unless this flag is set. */
221 #define TYPE_NOTTEXT(t) (((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_NOTTEXT)
223 #define TYPE_FLAG_ENUM(t) ((t)->is_flag_enum ())
225 /* * Constant type. If this is set, the corresponding type has a
228 #define TYPE_CONST(t) ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_CONST) != 0)
230 /* * Volatile type. If this is set, the corresponding type has a
231 volatile modifier. */
233 #define TYPE_VOLATILE(t) \
234 ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
236 /* * Restrict type. If this is set, the corresponding type has a
237 restrict modifier. */
239 #define TYPE_RESTRICT(t) \
240 ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
242 /* * Atomic type. If this is set, the corresponding type has an
245 #define TYPE_ATOMIC(t) \
246 ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
248 /* * True if this type represents either an lvalue or lvalue reference type. */
250 #define TYPE_IS_REFERENCE(t) \
251 ((t)->code () == TYPE_CODE_REF || (t)->code () == TYPE_CODE_RVALUE_REF)
253 /* * True if this type is allocatable. */
254 #define TYPE_IS_ALLOCATABLE(t) \
255 ((t)->dyn_prop (DYN_PROP_ALLOCATED) != NULL)
257 /* * True if this type has variant parts. */
258 #define TYPE_HAS_VARIANT_PARTS(t) \
259 ((t)->dyn_prop (DYN_PROP_VARIANT_PARTS) != nullptr)
261 /* * True if this type has a dynamic length. */
262 #define TYPE_HAS_DYNAMIC_LENGTH(t) \
263 ((t)->dyn_prop (DYN_PROP_BYTE_SIZE) != nullptr)
265 /* * Instruction-space delimited type. This is for Harvard architectures
266 which have separate instruction and data address spaces (and perhaps
269 GDB usually defines a flat address space that is a superset of the
270 architecture's two (or more) address spaces, but this is an extension
271 of the architecture's model.
273 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
274 resides in instruction memory, even if its address (in the extended
275 flat address space) does not reflect this.
277 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
278 corresponding type resides in the data memory space, even if
279 this is not indicated by its (flat address space) address.
281 If neither flag is set, the default space for functions / methods
282 is instruction space, and for data objects is data memory. */
284 #define TYPE_CODE_SPACE(t) \
285 ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
287 #define TYPE_DATA_SPACE(t) \
288 ((((t)->instance_flags ()) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
290 /* * Address class flags. Some environments provide for pointers
291 whose size is different from that of a normal pointer or address
292 types where the bits are interpreted differently than normal
293 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
294 target specific ways to represent these different types of address
297 #define TYPE_ADDRESS_CLASS_1(t) (((t)->instance_flags ()) \
298 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
299 #define TYPE_ADDRESS_CLASS_2(t) (((t)->instance_flags ()) \
300 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
301 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
302 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
303 #define TYPE_ADDRESS_CLASS_ALL(t) (((t)->instance_flags ()) \
304 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
306 /* * Information about a single discriminant. */
308 struct discriminant_range
310 /* * The range of values for the variant. This is an inclusive
314 /* * Return true if VALUE is contained in this range. IS_UNSIGNED
315 is true if this should be an unsigned comparison; false for
317 bool contains (ULONGEST value
, bool is_unsigned
) const
320 return value
>= low
&& value
<= high
;
321 LONGEST valuel
= (LONGEST
) value
;
322 return valuel
>= (LONGEST
) low
&& valuel
<= (LONGEST
) high
;
328 /* * A single variant. A variant has a list of discriminant values.
329 When the discriminator matches one of these, the variant is
330 enabled. Each variant controls zero or more fields; and may also
331 control other variant parts as well. This struct corresponds to
332 DW_TAG_variant in DWARF. */
334 struct variant
: allocate_on_obstack
336 /* * The discriminant ranges for this variant. */
337 gdb::array_view
<discriminant_range
> discriminants
;
339 /* * The fields controlled by this variant. This is inclusive on
340 the low end and exclusive on the high end. A variant may not
341 control any fields, in which case the two values will be equal.
342 These are indexes into the type's array of fields. */
346 /* * Variant parts controlled by this variant. */
347 gdb::array_view
<variant_part
> parts
;
349 /* * Return true if this is the default variant. The default
350 variant can be recognized because it has no associated
352 bool is_default () const
354 return discriminants
.empty ();
357 /* * Return true if this variant matches VALUE. IS_UNSIGNED is true
358 if this should be an unsigned comparison; false for signed. */
359 bool matches (ULONGEST value
, bool is_unsigned
) const;
362 /* * A variant part. Each variant part has an optional discriminant
363 and holds an array of variants. This struct corresponds to
364 DW_TAG_variant_part in DWARF. */
366 struct variant_part
: allocate_on_obstack
368 /* * The index of the discriminant field in the outer type. This is
369 an index into the type's array of fields. If this is -1, there
370 is no discriminant, and only the default variant can be
371 considered to be selected. */
372 int discriminant_index
;
374 /* * True if this discriminant is unsigned; false if signed. This
375 comes from the type of the discriminant. */
378 /* * The variants that are controlled by this variant part. Note
379 that these will always be sorted by field number. */
380 gdb::array_view
<variant
> variants
;
384 enum dynamic_prop_kind
386 PROP_UNDEFINED
, /* Not defined. */
387 PROP_CONST
, /* Constant. */
388 PROP_ADDR_OFFSET
, /* Address offset. */
389 PROP_LOCEXPR
, /* Location expression. */
390 PROP_LOCLIST
, /* Location list. */
391 PROP_VARIANT_PARTS
, /* Variant parts. */
392 PROP_TYPE
, /* Type. */
395 union dynamic_prop_data
397 /* Storage for constant property. */
401 /* Storage for dynamic property. */
405 /* Storage of variant parts for a type. A type with variant parts
406 has all its fields "linearized" -- stored in a single field
407 array, just as if they had all been declared that way. The
408 variant parts are attached via a dynamic property, and then are
409 used to control which fields end up in the final type during
410 dynamic type resolution. */
412 const gdb::array_view
<variant_part
> *variant_parts
;
414 /* Once a variant type is resolved, we may want to be able to go
415 from the resolved type to the original type. In this case we
416 rewrite the property's kind and set this field. */
418 struct type
*original_type
;
421 /* * Used to store a dynamic property. */
425 dynamic_prop_kind
kind () const
430 void set_undefined ()
432 m_kind
= PROP_UNDEFINED
;
435 LONGEST
const_val () const
437 gdb_assert (m_kind
== PROP_CONST
);
439 return m_data
.const_val
;
442 void set_const_val (LONGEST const_val
)
445 m_data
.const_val
= const_val
;
450 gdb_assert (m_kind
== PROP_LOCEXPR
451 || m_kind
== PROP_LOCLIST
452 || m_kind
== PROP_ADDR_OFFSET
);
457 void set_locexpr (void *baton
)
459 m_kind
= PROP_LOCEXPR
;
460 m_data
.baton
= baton
;
463 void set_loclist (void *baton
)
465 m_kind
= PROP_LOCLIST
;
466 m_data
.baton
= baton
;
469 void set_addr_offset (void *baton
)
471 m_kind
= PROP_ADDR_OFFSET
;
472 m_data
.baton
= baton
;
475 const gdb::array_view
<variant_part
> *variant_parts () const
477 gdb_assert (m_kind
== PROP_VARIANT_PARTS
);
479 return m_data
.variant_parts
;
482 void set_variant_parts (gdb::array_view
<variant_part
> *variant_parts
)
484 m_kind
= PROP_VARIANT_PARTS
;
485 m_data
.variant_parts
= variant_parts
;
488 struct type
*original_type () const
490 gdb_assert (m_kind
== PROP_TYPE
);
492 return m_data
.original_type
;
495 void set_original_type (struct type
*original_type
)
498 m_data
.original_type
= original_type
;
501 /* Determine which field of the union dynamic_prop.data is used. */
502 enum dynamic_prop_kind m_kind
;
504 /* Storage for dynamic or static value. */
505 union dynamic_prop_data m_data
;
508 /* Compare two dynamic_prop objects for equality. dynamic_prop
509 instances are equal iff they have the same type and storage. */
510 extern bool operator== (const dynamic_prop
&l
, const dynamic_prop
&r
);
512 /* Compare two dynamic_prop objects for inequality. */
513 static inline bool operator!= (const dynamic_prop
&l
, const dynamic_prop
&r
)
518 /* * Define a type's dynamic property node kind. */
519 enum dynamic_prop_node_kind
521 /* A property providing a type's data location.
522 Evaluating this field yields to the location of an object's data. */
523 DYN_PROP_DATA_LOCATION
,
525 /* A property representing DW_AT_allocated. The presence of this attribute
526 indicates that the object of the type can be allocated/deallocated. */
529 /* A property representing DW_AT_associated. The presence of this attribute
530 indicated that the object of the type can be associated. */
533 /* A property providing an array's byte stride. */
534 DYN_PROP_BYTE_STRIDE
,
536 /* A property holding variant parts. */
537 DYN_PROP_VARIANT_PARTS
,
539 /* A property holding the size of the type. */
543 /* * List for dynamic type attributes. */
544 struct dynamic_prop_list
546 /* The kind of dynamic prop in this node. */
547 enum dynamic_prop_node_kind prop_kind
;
549 /* The dynamic property itself. */
550 struct dynamic_prop prop
;
552 /* A pointer to the next dynamic property. */
553 struct dynamic_prop_list
*next
;
556 /* * Determine which field of the union main_type.fields[x].loc is
561 FIELD_LOC_KIND_BITPOS
, /**< bitpos */
562 FIELD_LOC_KIND_ENUMVAL
, /**< enumval */
563 FIELD_LOC_KIND_PHYSADDR
, /**< physaddr */
564 FIELD_LOC_KIND_PHYSNAME
, /**< physname */
565 FIELD_LOC_KIND_DWARF_BLOCK
/**< dwarf_block */
568 /* * A discriminant to determine which field in the
569 main_type.type_specific union is being used, if any.
571 For types such as TYPE_CODE_FLT, the use of this
572 discriminant is really redundant, as we know from the type code
573 which field is going to be used. As such, it would be possible to
574 reduce the size of this enum in order to save a bit or two for
575 other fields of struct main_type. But, since we still have extra
576 room , and for the sake of clarity and consistency, we treat all fields
577 of the union the same way. */
579 enum type_specific_kind
582 TYPE_SPECIFIC_CPLUS_STUFF
,
583 TYPE_SPECIFIC_GNAT_STUFF
,
584 TYPE_SPECIFIC_FLOATFORMAT
,
585 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
587 TYPE_SPECIFIC_SELF_TYPE
,
589 TYPE_SPECIFIC_FIXED_POINT
,
594 struct objfile
*objfile
;
595 struct gdbarch
*gdbarch
;
600 /* * Position of this field, counting in bits from start of
601 containing structure. For big-endian targets, it is the bit
602 offset to the MSB. For little-endian targets, it is the bit
603 offset to the LSB. */
610 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
611 physaddr is the location (in the target) of the static
612 field. Otherwise, physname is the mangled label of the
616 const char *physname
;
618 /* * The field location can be computed by evaluating the
619 following DWARF block. Its DATA is allocated on
620 objfile_obstack - no CU load is needed to access it. */
622 struct dwarf2_locexpr_baton
*dwarf_block
;
627 struct type
*type () const
632 void set_type (struct type
*type
)
637 union field_location loc
;
639 /* * For a function or member type, this is 1 if the argument is
640 marked artificial. Artificial arguments should not be shown
641 to the user. For TYPE_CODE_RANGE it is set if the specific
642 bound is not defined. */
644 unsigned int artificial
: 1;
646 /* * Discriminant for union field_location. */
648 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
650 /* * Size of this field, in bits, or zero if not packed.
651 If non-zero in an array type, indicates the element size in
652 bits (used only in Ada at the moment).
653 For an unpacked field, the field's type's length
654 says how many bytes the field occupies. */
656 unsigned int bitsize
: 28;
658 /* * In a struct or union type, type of this field.
659 - In a function or member type, type of this argument.
660 - In an array type, the domain-type of the array. */
664 /* * Name of field, value or argument.
665 NULL for range bounds, array domains, and member function
673 ULONGEST
bit_stride () const
675 if (this->flag_is_byte_stride
)
676 return this->stride
.const_val () * 8;
678 return this->stride
.const_val ();
681 /* * Low bound of range. */
683 struct dynamic_prop low
;
685 /* * High bound of range. */
687 struct dynamic_prop high
;
689 /* The stride value for this range. This can be stored in bits or bytes
690 based on the value of BYTE_STRIDE_P. It is optional to have a stride
691 value, if this range has no stride value defined then this will be set
692 to the constant zero. */
694 struct dynamic_prop stride
;
696 /* * The bias. Sometimes a range value is biased before storage.
697 The bias is added to the stored bits to form the true value. */
701 /* True if HIGH range bound contains the number of elements in the
702 subrange. This affects how the final high bound is computed. */
704 unsigned int flag_upper_bound_is_count
: 1;
706 /* True if LOW or/and HIGH are resolved into a static bound from
709 unsigned int flag_bound_evaluated
: 1;
711 /* If this is true this STRIDE is in bytes, otherwise STRIDE is in bits. */
713 unsigned int flag_is_byte_stride
: 1;
716 /* Compare two range_bounds objects for equality. Simply does
717 memberwise comparison. */
718 extern bool operator== (const range_bounds
&l
, const range_bounds
&r
);
720 /* Compare two range_bounds objects for inequality. */
721 static inline bool operator!= (const range_bounds
&l
, const range_bounds
&r
)
728 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
729 point to cplus_struct_default, a default static instance of a
730 struct cplus_struct_type. */
732 struct cplus_struct_type
*cplus_stuff
;
734 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
735 provides additional information. */
737 struct gnat_aux_type
*gnat_stuff
;
739 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a
740 floatformat object that describes the floating-point value
741 that resides within the type. */
743 const struct floatformat
*floatformat
;
745 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
747 struct func_type
*func_stuff
;
749 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
750 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
753 struct type
*self_type
;
755 /* * For TYPE_CODE_FIXED_POINT types, the info necessary to decode
756 values of that type. */
757 struct fixed_point_type_info
*fixed_point_info
;
759 /* * An integer-like scalar type may be stored in just part of its
760 enclosing storage bytes. This structure describes this
764 /* * The bit size of the integer. This can be 0. For integers
765 that fill their storage (the ordinary case), this field holds
766 the byte size times 8. */
767 unsigned short bit_size
;
768 /* * The bit offset of the integer. This is ordinarily 0, and can
769 only be non-zero if the bit size is less than the storage
771 unsigned short bit_offset
;
775 /* * Main structure representing a type in GDB.
777 This structure is space-critical. Its layout has been tweaked to
778 reduce the space used. */
782 /* * Code for kind of type. */
784 ENUM_BITFIELD(type_code
) code
: 8;
786 /* * Flags about this type. These fields appear at this location
787 because they packs nicely here. See the TYPE_* macros for
788 documentation about these fields. */
790 unsigned int m_flag_unsigned
: 1;
791 unsigned int m_flag_nosign
: 1;
792 unsigned int m_flag_stub
: 1;
793 unsigned int m_flag_target_stub
: 1;
794 unsigned int m_flag_prototyped
: 1;
795 unsigned int m_flag_varargs
: 1;
796 unsigned int m_flag_vector
: 1;
797 unsigned int m_flag_stub_supported
: 1;
798 unsigned int m_flag_gnu_ifunc
: 1;
799 unsigned int m_flag_fixed_instance
: 1;
800 unsigned int m_flag_objfile_owned
: 1;
801 unsigned int m_flag_endianity_not_default
: 1;
803 /* * True if this type was declared with "class" rather than
806 unsigned int m_flag_declared_class
: 1;
808 /* * True if this is an enum type with disjoint values. This
809 affects how the enum is printed. */
811 unsigned int m_flag_flag_enum
: 1;
813 /* * A discriminant telling us which field of the type_specific
814 union is being used for this type, if any. */
816 ENUM_BITFIELD(type_specific_kind
) type_specific_field
: 3;
818 /* * Number of fields described for this type. This field appears
819 at this location because it packs nicely here. */
823 /* * Name of this type, or NULL if none.
825 This is used for printing only. For looking up a name, look for
826 a symbol in the VAR_DOMAIN. This is generally allocated in the
827 objfile's obstack. However coffread.c uses malloc. */
831 /* * Every type is now associated with a particular objfile, and the
832 type is allocated on the objfile_obstack for that objfile. One
833 problem however, is that there are times when gdb allocates new
834 types while it is not in the process of reading symbols from a
835 particular objfile. Fortunately, these happen when the type
836 being created is a derived type of an existing type, such as in
837 lookup_pointer_type(). So we can just allocate the new type
838 using the same objfile as the existing type, but to do this we
839 need a backpointer to the objfile from the existing type. Yes
840 this is somewhat ugly, but without major overhaul of the internal
841 type system, it can't be avoided for now. */
843 union type_owner m_owner
;
845 /* * For a pointer type, describes the type of object pointed to.
846 - For an array type, describes the type of the elements.
847 - For a function or method type, describes the type of the return value.
848 - For a range type, describes the type of the full range.
849 - For a complex type, describes the type of each coordinate.
850 - For a special record or union type encoding a dynamic-sized type
851 in GNAT, a memoized pointer to a corresponding static version of
853 - Unused otherwise. */
855 struct type
*target_type
;
857 /* * For structure and union types, a description of each field.
858 For set and pascal array types, there is one "field",
859 whose type is the domain type of the set or array.
860 For range types, there are two "fields",
861 the minimum and maximum values (both inclusive).
862 For enum types, each possible value is described by one "field".
863 For a function or method type, a "field" for each parameter.
864 For C++ classes, there is one field for each base class (if it is
865 a derived class) plus one field for each class data member. Member
866 functions are recorded elsewhere.
868 Using a pointer to a separate array of fields
869 allows all types to have the same size, which is useful
870 because we can allocate the space for a type before
871 we know what to put in it. */
875 struct field
*fields
;
877 /* * Union member used for range types. */
879 struct range_bounds
*bounds
;
881 /* If this is a scalar type, then this is its corresponding
883 struct type
*complex_type
;
887 /* * Slot to point to additional language-specific fields of this
890 union type_specific type_specific
;
892 /* * Contains all dynamic type properties. */
893 struct dynamic_prop_list
*dyn_prop_list
;
896 /* * Number of bits allocated for alignment. */
898 #define TYPE_ALIGN_BITS 8
900 /* * A ``struct type'' describes a particular instance of a type, with
901 some particular qualification. */
905 /* Get the type code of this type.
907 Note that the code can be TYPE_CODE_TYPEDEF, so if you want the real
908 type, you need to do `check_typedef (type)->code ()`. */
909 type_code
code () const
911 return this->main_type
->code
;
914 /* Set the type code of this type. */
915 void set_code (type_code code
)
917 this->main_type
->code
= code
;
920 /* Get the name of this type. */
921 const char *name () const
923 return this->main_type
->name
;
926 /* Set the name of this type. */
927 void set_name (const char *name
)
929 this->main_type
->name
= name
;
932 /* Get the number of fields of this type. */
933 int num_fields () const
935 return this->main_type
->nfields
;
938 /* Set the number of fields of this type. */
939 void set_num_fields (int num_fields
)
941 this->main_type
->nfields
= num_fields
;
944 /* Get the fields array of this type. */
945 struct field
*fields () const
947 return this->main_type
->flds_bnds
.fields
;
950 /* Get the field at index IDX. */
951 struct field
&field (int idx
) const
953 return this->fields ()[idx
];
956 /* Set the fields array of this type. */
957 void set_fields (struct field
*fields
)
959 this->main_type
->flds_bnds
.fields
= fields
;
962 type
*index_type () const
964 return this->field (0).type ();
967 void set_index_type (type
*index_type
)
969 this->field (0).set_type (index_type
);
972 /* Return the instance flags converted to the correct type. */
973 const type_instance_flags
instance_flags () const
975 return (enum type_instance_flag_value
) this->m_instance_flags
;
978 /* Set the instance flags. */
979 void set_instance_flags (type_instance_flags flags
)
981 this->m_instance_flags
= flags
;
984 /* Get the bounds bounds of this type. The type must be a range type. */
985 range_bounds
*bounds () const
987 switch (this->code ())
989 case TYPE_CODE_RANGE
:
990 return this->main_type
->flds_bnds
.bounds
;
992 case TYPE_CODE_ARRAY
:
993 case TYPE_CODE_STRING
:
994 return this->index_type ()->bounds ();
997 gdb_assert_not_reached
998 ("type::bounds called on type with invalid code");
1002 /* Set the bounds of this type. The type must be a range type. */
1003 void set_bounds (range_bounds
*bounds
)
1005 gdb_assert (this->code () == TYPE_CODE_RANGE
);
1007 this->main_type
->flds_bnds
.bounds
= bounds
;
1010 ULONGEST
bit_stride () const
1012 return this->bounds ()->bit_stride ();
1015 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT,
1016 the type is signed (unless TYPE_NOSIGN is set). */
1018 bool is_unsigned () const
1020 return this->main_type
->m_flag_unsigned
;
1023 void set_is_unsigned (bool is_unsigned
)
1025 this->main_type
->m_flag_unsigned
= is_unsigned
;
1028 /* No sign for this type. In C++, "char", "signed char", and
1029 "unsigned char" are distinct types; so we need an extra flag to
1030 indicate the absence of a sign! */
1032 bool has_no_signedness () const
1034 return this->main_type
->m_flag_nosign
;
1037 void set_has_no_signedness (bool has_no_signedness
)
1039 this->main_type
->m_flag_nosign
= has_no_signedness
;
1042 /* This appears in a type's flags word if it is a stub type (e.g.,
1043 if someone referenced a type that wasn't defined in a source file
1044 via (struct sir_not_appearing_in_this_film *)). */
1046 bool is_stub () const
1048 return this->main_type
->m_flag_stub
;
1051 void set_is_stub (bool is_stub
)
1053 this->main_type
->m_flag_stub
= is_stub
;
1056 /* The target type of this type is a stub type, and this type needs
1057 to be updated if it gets un-stubbed in check_typedef. Used for
1058 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
1059 based on the TYPE_LENGTH of the target type. Also, set for
1060 TYPE_CODE_TYPEDEF. */
1062 bool target_is_stub () const
1064 return this->main_type
->m_flag_target_stub
;
1067 void set_target_is_stub (bool target_is_stub
)
1069 this->main_type
->m_flag_target_stub
= target_is_stub
;
1072 /* This is a function type which appears to have a prototype. We
1073 need this for function calls in order to tell us if it's necessary
1074 to coerce the args, or to just do the standard conversions. This
1075 is used with a short field. */
1077 bool is_prototyped () const
1079 return this->main_type
->m_flag_prototyped
;
1082 void set_is_prototyped (bool is_prototyped
)
1084 this->main_type
->m_flag_prototyped
= is_prototyped
;
1087 /* FIXME drow/2002-06-03: Only used for methods, but applies as well
1090 bool has_varargs () const
1092 return this->main_type
->m_flag_varargs
;
1095 void set_has_varargs (bool has_varargs
)
1097 this->main_type
->m_flag_varargs
= has_varargs
;
1100 /* Identify a vector type. Gcc is handling this by adding an extra
1101 attribute to the array type. We slurp that in as a new flag of a
1102 type. This is used only in dwarf2read.c. */
1104 bool is_vector () const
1106 return this->main_type
->m_flag_vector
;
1109 void set_is_vector (bool is_vector
)
1111 this->main_type
->m_flag_vector
= is_vector
;
1114 /* This debug target supports TYPE_STUB(t). In the unsupported case
1115 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
1116 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
1117 guessed the TYPE_STUB(t) value (see dwarfread.c). */
1119 bool stub_is_supported () const
1121 return this->main_type
->m_flag_stub_supported
;
1124 void set_stub_is_supported (bool stub_is_supported
)
1126 this->main_type
->m_flag_stub_supported
= stub_is_supported
;
1129 /* Used only for TYPE_CODE_FUNC where it specifies the real function
1130 address is returned by this function call. TYPE_TARGET_TYPE
1131 determines the final returned function type to be presented to
1134 bool is_gnu_ifunc () const
1136 return this->main_type
->m_flag_gnu_ifunc
;
1139 void set_is_gnu_ifunc (bool is_gnu_ifunc
)
1141 this->main_type
->m_flag_gnu_ifunc
= is_gnu_ifunc
;
1144 /* The debugging formats (especially STABS) do not contain enough
1145 information to represent all Ada types---especially those whose
1146 size depends on dynamic quantities. Therefore, the GNAT Ada
1147 compiler includes extra information in the form of additional type
1148 definitions connected by naming conventions. This flag indicates
1149 that the type is an ordinary (unencoded) GDB type that has been
1150 created from the necessary run-time information, and does not need
1151 further interpretation. Optionally marks ordinary, fixed-size GDB
1154 bool is_fixed_instance () const
1156 return this->main_type
->m_flag_fixed_instance
;
1159 void set_is_fixed_instance (bool is_fixed_instance
)
1161 this->main_type
->m_flag_fixed_instance
= is_fixed_instance
;
1164 /* A compiler may supply dwarf instrumentation that indicates the desired
1165 endian interpretation of the variable differs from the native endian
1168 bool endianity_is_not_default () const
1170 return this->main_type
->m_flag_endianity_not_default
;
1173 void set_endianity_is_not_default (bool endianity_is_not_default
)
1175 this->main_type
->m_flag_endianity_not_default
= endianity_is_not_default
;
1179 /* True if this type was declared using the "class" keyword. This is
1180 only valid for C++ structure and enum types. If false, a structure
1181 was declared as a "struct"; if true it was declared "class". For
1182 enum types, this is true when "enum class" or "enum struct" was
1183 used to declare the type. */
1185 bool is_declared_class () const
1187 return this->main_type
->m_flag_declared_class
;
1190 void set_is_declared_class (bool is_declared_class
) const
1192 this->main_type
->m_flag_declared_class
= is_declared_class
;
1195 /* True if this type is a "flag" enum. A flag enum is one where all
1196 the values are pairwise disjoint when "and"ed together. This
1197 affects how enum values are printed. */
1199 bool is_flag_enum () const
1201 return this->main_type
->m_flag_flag_enum
;
1204 void set_is_flag_enum (bool is_flag_enum
)
1206 this->main_type
->m_flag_flag_enum
= is_flag_enum
;
1209 /* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, return a reference
1210 to this type's fixed_point_info. */
1212 struct fixed_point_type_info
&fixed_point_info () const
1214 gdb_assert (this->code () == TYPE_CODE_FIXED_POINT
);
1215 gdb_assert (this->main_type
->type_specific
.fixed_point_info
!= nullptr);
1217 return *this->main_type
->type_specific
.fixed_point_info
;
1220 /* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, set this type's
1221 fixed_point_info to INFO. */
1223 void set_fixed_point_info (struct fixed_point_type_info
*info
) const
1225 gdb_assert (this->code () == TYPE_CODE_FIXED_POINT
);
1227 this->main_type
->type_specific
.fixed_point_info
= info
;
1230 /* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, return its base type.
1232 In other words, this returns the type after having peeled all
1233 intermediate type layers (such as TYPE_CODE_RANGE, for instance).
1234 The TYPE_CODE of the type returned is guaranteed to be
1235 a TYPE_CODE_FIXED_POINT. */
1237 struct type
*fixed_point_type_base_type ();
1239 /* * Assuming that THIS is a TYPE_CODE_FIXED_POINT, return its scaling
1242 const gdb_mpq
&fixed_point_scaling_factor ();
1244 /* * Return the dynamic property of the requested KIND from this type's
1245 list of dynamic properties. */
1246 dynamic_prop
*dyn_prop (dynamic_prop_node_kind kind
) const;
1248 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1249 property to this type.
1251 This function assumes that this type is objfile-owned. */
1252 void add_dyn_prop (dynamic_prop_node_kind kind
, dynamic_prop prop
);
1254 /* * Remove dynamic property of kind KIND from this type, if it exists. */
1255 void remove_dyn_prop (dynamic_prop_node_kind kind
);
1257 /* Return true if this type is owned by an objfile. Return false if it is
1258 owned by an architecture. */
1259 bool is_objfile_owned () const
1261 return this->main_type
->m_flag_objfile_owned
;
1264 /* Set the owner of the type to be OBJFILE. */
1265 void set_owner (objfile
*objfile
)
1267 gdb_assert (objfile
!= nullptr);
1269 this->main_type
->m_owner
.objfile
= objfile
;
1270 this->main_type
->m_flag_objfile_owned
= true;
1273 /* Set the owner of the type to be ARCH. */
1274 void set_owner (gdbarch
*arch
)
1276 gdb_assert (arch
!= nullptr);
1278 this->main_type
->m_owner
.gdbarch
= arch
;
1279 this->main_type
->m_flag_objfile_owned
= false;
1282 /* Return the objfile owner of this type.
1284 Return nullptr if this type is not objfile-owned. */
1285 struct objfile
*objfile_owner () const
1287 if (!this->is_objfile_owned ())
1290 return this->main_type
->m_owner
.objfile
;
1293 /* Return the gdbarch owner of this type.
1295 Return nullptr if this type is not gdbarch-owned. */
1296 gdbarch
*arch_owner () const
1298 if (this->is_objfile_owned ())
1301 return this->main_type
->m_owner
.gdbarch
;
1304 /* Return the type's architecture. For types owned by an
1305 architecture, that architecture is returned. For types owned by an
1306 objfile, that objfile's architecture is returned.
1308 The return value is always non-nullptr. */
1309 gdbarch
*arch () const;
1311 /* * Return true if this is an integer type whose logical (bit) size
1312 differs from its storage size; false otherwise. Always return
1313 false for non-integer (i.e., non-TYPE_SPECIFIC_INT) types. */
1314 bool bit_size_differs_p () const
1316 return (main_type
->type_specific_field
== TYPE_SPECIFIC_INT
1317 && main_type
->type_specific
.int_stuff
.bit_size
!= 8 * length
);
1320 /* * Return the logical (bit) size for this integer type. Only
1321 valid for integer (TYPE_SPECIFIC_INT) types. */
1322 unsigned short bit_size () const
1324 gdb_assert (main_type
->type_specific_field
== TYPE_SPECIFIC_INT
);
1325 return main_type
->type_specific
.int_stuff
.bit_size
;
1328 /* * Return the bit offset for this integer type. Only valid for
1329 integer (TYPE_SPECIFIC_INT) types. */
1330 unsigned short bit_offset () const
1332 gdb_assert (main_type
->type_specific_field
== TYPE_SPECIFIC_INT
);
1333 return main_type
->type_specific
.int_stuff
.bit_offset
;
1336 /* * Type that is a pointer to this type.
1337 NULL if no such pointer-to type is known yet.
1338 The debugger may add the address of such a type
1339 if it has to construct one later. */
1341 struct type
*pointer_type
;
1343 /* * C++: also need a reference type. */
1345 struct type
*reference_type
;
1347 /* * A C++ rvalue reference type added in C++11. */
1349 struct type
*rvalue_reference_type
;
1351 /* * Variant chain. This points to a type that differs from this
1352 one only in qualifiers and length. Currently, the possible
1353 qualifiers are const, volatile, code-space, data-space, and
1354 address class. The length may differ only when one of the
1355 address class flags are set. The variants are linked in a
1356 circular ring and share MAIN_TYPE. */
1360 /* * The alignment for this type. Zero means that the alignment was
1361 not specified in the debug info. Note that this is stored in a
1362 funny way: as the log base 2 (plus 1) of the alignment; so a
1363 value of 1 means the alignment is 1, and a value of 9 means the
1364 alignment is 256. */
1366 unsigned align_log2
: TYPE_ALIGN_BITS
;
1368 /* * Flags specific to this instance of the type, indicating where
1371 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
1372 binary or-ed with the target type, with a special case for
1373 address class and space class. For example if this typedef does
1374 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
1375 instance flags are completely inherited from the target type. No
1376 qualifiers can be cleared by the typedef. See also
1378 unsigned m_instance_flags
: 9;
1380 /* * Length of storage for a value of this type. The value is the
1381 expression in host bytes of what sizeof(type) would return. This
1382 size includes padding. For example, an i386 extended-precision
1383 floating point value really only occupies ten bytes, but most
1384 ABI's declare its size to be 12 bytes, to preserve alignment.
1385 A `struct type' representing such a floating-point type would
1386 have a `length' value of 12, even though the last two bytes are
1389 Since this field is expressed in host bytes, its value is appropriate
1390 to pass to memcpy and such (it is assumed that GDB itself always runs
1391 on an 8-bits addressable architecture). However, when using it for
1392 target address arithmetic (e.g. adding it to a target address), the
1393 type_length_units function should be used in order to get the length
1394 expressed in target addressable memory units. */
1398 /* * Core type, shared by a group of qualified types. */
1400 struct main_type
*main_type
;
1406 /* * The overloaded name.
1407 This is generally allocated in the objfile's obstack.
1408 However stabsread.c sometimes uses malloc. */
1412 /* * The number of methods with this name. */
1416 /* * The list of methods. */
1418 struct fn_field
*fn_fields
;
1425 /* * If is_stub is clear, this is the mangled name which we can look
1426 up to find the address of the method (FIXME: it would be cleaner
1427 to have a pointer to the struct symbol here instead).
1429 If is_stub is set, this is the portion of the mangled name which
1430 specifies the arguments. For example, "ii", if there are two int
1431 arguments, or "" if there are no arguments. See gdb_mangle_name
1432 for the conversion from this format to the one used if is_stub is
1435 const char *physname
;
1437 /* * The function type for the method.
1439 (This comment used to say "The return value of the method", but
1440 that's wrong. The function type is expected here, i.e. something
1441 with TYPE_CODE_METHOD, and *not* the return-value type). */
1445 /* * For virtual functions. First baseclass that defines this
1446 virtual function. */
1448 struct type
*fcontext
;
1452 unsigned int is_const
:1;
1453 unsigned int is_volatile
:1;
1454 unsigned int is_private
:1;
1455 unsigned int is_protected
:1;
1456 unsigned int is_artificial
:1;
1458 /* * A stub method only has some fields valid (but they are enough
1459 to reconstruct the rest of the fields). */
1461 unsigned int is_stub
:1;
1463 /* * True if this function is a constructor, false otherwise. */
1465 unsigned int is_constructor
: 1;
1467 /* * True if this function is deleted, false otherwise. */
1469 unsigned int is_deleted
: 1;
1471 /* * DW_AT_defaulted attribute for this function. The value is one
1472 of the DW_DEFAULTED constants. */
1474 ENUM_BITFIELD (dwarf_defaulted_attribute
) defaulted
: 2;
1478 unsigned int dummy
:6;
1480 /* * Index into that baseclass's virtual function table, minus 2;
1481 else if static: VOFFSET_STATIC; else: 0. */
1483 unsigned int voffset
:16;
1485 #define VOFFSET_STATIC 1
1491 /* * Unqualified name to be prefixed by owning class qualified
1496 /* * Type this typedef named NAME represents. */
1500 /* * True if this field was declared protected, false otherwise. */
1501 unsigned int is_protected
: 1;
1503 /* * True if this field was declared private, false otherwise. */
1504 unsigned int is_private
: 1;
1507 /* * C++ language-specific information for TYPE_CODE_STRUCT and
1508 TYPE_CODE_UNION nodes. */
1510 struct cplus_struct_type
1512 /* * Number of base classes this type derives from. The
1513 baseclasses are stored in the first N_BASECLASSES fields
1514 (i.e. the `fields' field of the struct type). The only fields
1515 of struct field that are used are: type, name, loc.bitpos. */
1517 short n_baseclasses
;
1519 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
1520 All access to this field must be through TYPE_VPTR_FIELDNO as one
1521 thing it does is check whether the field has been initialized.
1522 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
1523 which for portability reasons doesn't initialize this field.
1524 TYPE_VPTR_FIELDNO returns -1 for this case.
1526 If -1, we were unable to find the virtual function table pointer in
1527 initial symbol reading, and get_vptr_fieldno should be called to find
1528 it if possible. get_vptr_fieldno will update this field if possible.
1529 Otherwise the value is left at -1.
1531 Unused if this type does not have virtual functions. */
1535 /* * Number of methods with unique names. All overloaded methods
1536 with the same name count only once. */
1540 /* * Number of template arguments. */
1542 unsigned short n_template_arguments
;
1544 /* * One if this struct is a dynamic class, as defined by the
1545 Itanium C++ ABI: if it requires a virtual table pointer,
1546 because it or any of its base classes have one or more virtual
1547 member functions or virtual base classes. Minus one if not
1548 dynamic. Zero if not yet computed. */
1552 /* * The calling convention for this type, fetched from the
1553 DW_AT_calling_convention attribute. The value is one of the
1556 ENUM_BITFIELD (dwarf_calling_convention
) calling_convention
: 8;
1558 /* * The base class which defined the virtual function table pointer. */
1560 struct type
*vptr_basetype
;
1562 /* * For derived classes, the number of base classes is given by
1563 n_baseclasses and virtual_field_bits is a bit vector containing
1564 one bit per base class. If the base class is virtual, the
1565 corresponding bit will be set.
1570 class C : public B, public virtual A {};
1572 B is a baseclass of C; A is a virtual baseclass for C.
1573 This is a C++ 2.0 language feature. */
1575 B_TYPE
*virtual_field_bits
;
1577 /* * For classes with private fields, the number of fields is
1578 given by nfields and private_field_bits is a bit vector
1579 containing one bit per field.
1581 If the field is private, the corresponding bit will be set. */
1583 B_TYPE
*private_field_bits
;
1585 /* * For classes with protected fields, the number of fields is
1586 given by nfields and protected_field_bits is a bit vector
1587 containing one bit per field.
1589 If the field is private, the corresponding bit will be set. */
1591 B_TYPE
*protected_field_bits
;
1593 /* * For classes with fields to be ignored, either this is
1594 optimized out or this field has length 0. */
1596 B_TYPE
*ignore_field_bits
;
1598 /* * For classes, structures, and unions, a description of each
1599 field, which consists of an overloaded name, followed by the
1600 types of arguments that the method expects, and then the name
1601 after it has been renamed to make it distinct.
1603 fn_fieldlists points to an array of nfn_fields of these. */
1605 struct fn_fieldlist
*fn_fieldlists
;
1607 /* * typedefs defined inside this class. typedef_field points to
1608 an array of typedef_field_count elements. */
1610 struct decl_field
*typedef_field
;
1612 unsigned typedef_field_count
;
1614 /* * The nested types defined by this type. nested_types points to
1615 an array of nested_types_count elements. */
1617 struct decl_field
*nested_types
;
1619 unsigned nested_types_count
;
1621 /* * The template arguments. This is an array with
1622 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
1625 struct symbol
**template_arguments
;
1628 /* * Struct used to store conversion rankings. */
1634 /* * When two conversions are of the same type and therefore have
1635 the same rank, subrank is used to differentiate the two.
1637 Eg: Two derived-class-pointer to base-class-pointer conversions
1638 would both have base pointer conversion rank, but the
1639 conversion with the shorter distance to the ancestor is
1640 preferable. 'subrank' would be used to reflect that. */
1645 /* * Used for ranking a function for overload resolution. */
1647 typedef std::vector
<rank
> badness_vector
;
1649 /* * GNAT Ada-specific information for various Ada types. */
1651 struct gnat_aux_type
1653 /* * Parallel type used to encode information about dynamic types
1654 used in Ada (such as variant records, variable-size array,
1656 struct type
* descriptive_type
;
1659 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1663 /* * The calling convention for targets supporting multiple ABIs.
1664 Right now this is only fetched from the Dwarf-2
1665 DW_AT_calling_convention attribute. The value is one of the
1668 ENUM_BITFIELD (dwarf_calling_convention
) calling_convention
: 8;
1670 /* * Whether this function normally returns to its caller. It is
1671 set from the DW_AT_noreturn attribute if set on the
1672 DW_TAG_subprogram. */
1674 unsigned int is_noreturn
: 1;
1676 /* * Only those DW_TAG_call_site's in this function that have
1677 DW_AT_call_tail_call set are linked in this list. Function
1678 without its tail call list complete
1679 (DW_AT_call_all_tail_calls or its superset
1680 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1681 DW_TAG_call_site's exist in such function. */
1683 struct call_site
*tail_call_list
;
1685 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1686 contains the method. */
1688 struct type
*self_type
;
1691 /* struct call_site_parameter can be referenced in callees by several ways. */
1693 enum call_site_parameter_kind
1695 /* * Use field call_site_parameter.u.dwarf_reg. */
1696 CALL_SITE_PARAMETER_DWARF_REG
,
1698 /* * Use field call_site_parameter.u.fb_offset. */
1699 CALL_SITE_PARAMETER_FB_OFFSET
,
1701 /* * Use field call_site_parameter.u.param_offset. */
1702 CALL_SITE_PARAMETER_PARAM_OFFSET
1705 struct call_site_target
1707 union field_location loc
;
1709 /* * Discriminant for union field_location. */
1711 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
1714 union call_site_parameter_u
1716 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1717 as DWARF register number, for register passed
1722 /* * Offset from the callee's frame base, for stack passed
1723 parameters. This equals offset from the caller's stack
1726 CORE_ADDR fb_offset
;
1728 /* * Offset relative to the start of this PER_CU to
1729 DW_TAG_formal_parameter which is referenced by both
1730 caller and the callee. */
1732 cu_offset param_cu_off
;
1735 struct call_site_parameter
1737 ENUM_BITFIELD (call_site_parameter_kind
) kind
: 2;
1739 union call_site_parameter_u u
;
1741 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1743 const gdb_byte
*value
;
1746 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1747 It may be NULL if not provided by DWARF. */
1749 const gdb_byte
*data_value
;
1750 size_t data_value_size
;
1753 /* * A place where a function gets called from, represented by
1754 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1758 /* * Address of the first instruction after this call. It must be
1759 the first field as we overload core_addr_hash and core_addr_eq
1764 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1766 struct call_site
*tail_call_next
;
1768 /* * Describe DW_AT_call_target. Missing attribute uses
1769 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1771 struct call_site_target target
;
1773 /* * Size of the PARAMETER array. */
1775 unsigned parameter_count
;
1777 /* * CU of the function where the call is located. It gets used
1778 for DWARF blocks execution in the parameter array below. */
1780 dwarf2_per_cu_data
*per_cu
;
1782 /* objfile of the function where the call is located. */
1784 dwarf2_per_objfile
*per_objfile
;
1786 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1788 struct call_site_parameter parameter
[1];
1791 /* The type-specific info for TYPE_CODE_FIXED_POINT types. */
1793 struct fixed_point_type_info
1795 /* The fixed point type's scaling factor. */
1796 gdb_mpq scaling_factor
;
1799 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1800 static structure. */
1802 extern const struct cplus_struct_type cplus_struct_default
;
1804 extern void allocate_cplus_struct_type (struct type
*);
1806 #define INIT_CPLUS_SPECIFIC(type) \
1807 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1808 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1809 &cplus_struct_default)
1811 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1813 #define HAVE_CPLUS_STRUCT(type) \
1814 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1815 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1817 #define INIT_NONE_SPECIFIC(type) \
1818 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_NONE, \
1819 TYPE_MAIN_TYPE (type)->type_specific = {})
1821 extern const struct gnat_aux_type gnat_aux_default
;
1823 extern void allocate_gnat_aux_type (struct type
*);
1825 #define INIT_GNAT_SPECIFIC(type) \
1826 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1827 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1828 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1829 /* * A macro that returns non-zero if the type-specific data should be
1830 read as "gnat-stuff". */
1831 #define HAVE_GNAT_AUX_INFO(type) \
1832 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1834 /* * True if TYPE is known to be an Ada type of some kind. */
1835 #define ADA_TYPE_P(type) \
1836 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF \
1837 || (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE \
1838 && (type)->is_fixed_instance ()))
1840 #define INIT_FUNC_SPECIFIC(type) \
1841 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1842 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1843 TYPE_ZALLOC (type, \
1844 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1846 /* "struct fixed_point_type_info" has a field that has a destructor.
1847 See allocate_fixed_point_type_info to understand how this is
1849 #define INIT_FIXED_POINT_SPECIFIC(type) \
1850 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FIXED_POINT, \
1851 allocate_fixed_point_type_info (type))
1853 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1854 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1855 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1856 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1857 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1858 #define TYPE_CHAIN(thistype) (thistype)->chain
1859 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1860 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1861 so you only have to call check_typedef once. Since allocate_value
1862 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1863 #define TYPE_LENGTH(thistype) (thistype)->length
1865 /* * Return the alignment of the type in target addressable memory
1866 units, or 0 if no alignment was specified. */
1867 #define TYPE_RAW_ALIGN(thistype) type_raw_align (thistype)
1869 /* * Return the alignment of the type in target addressable memory
1870 units, or 0 if no alignment was specified. */
1871 extern unsigned type_raw_align (struct type
*);
1873 /* * Return the alignment of the type in target addressable memory
1874 units. Return 0 if the alignment cannot be determined; but note
1875 that this makes an effort to compute the alignment even it it was
1876 not specified in the debug info. */
1877 extern unsigned type_align (struct type
*);
1879 /* * Set the alignment of the type. The alignment must be a power of
1880 2. Returns false if the given value does not fit in the available
1881 space in struct type. */
1882 extern bool set_type_align (struct type
*, ULONGEST
);
1884 /* Property accessors for the type data location. */
1885 #define TYPE_DATA_LOCATION(thistype) \
1886 ((thistype)->dyn_prop (DYN_PROP_DATA_LOCATION))
1887 #define TYPE_DATA_LOCATION_BATON(thistype) \
1888 TYPE_DATA_LOCATION (thistype)->data.baton
1889 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1890 (TYPE_DATA_LOCATION (thistype)->const_val ())
1891 #define TYPE_DATA_LOCATION_KIND(thistype) \
1892 (TYPE_DATA_LOCATION (thistype)->kind ())
1893 #define TYPE_DYNAMIC_LENGTH(thistype) \
1894 ((thistype)->dyn_prop (DYN_PROP_BYTE_SIZE))
1896 /* Property accessors for the type allocated/associated. */
1897 #define TYPE_ALLOCATED_PROP(thistype) \
1898 ((thistype)->dyn_prop (DYN_PROP_ALLOCATED))
1899 #define TYPE_ASSOCIATED_PROP(thistype) \
1900 ((thistype)->dyn_prop (DYN_PROP_ASSOCIATED))
1904 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1905 /* Do not call this, use TYPE_SELF_TYPE. */
1906 extern struct type
*internal_type_self_type (struct type
*);
1907 extern void set_type_self_type (struct type
*, struct type
*);
1909 extern int internal_type_vptr_fieldno (struct type
*);
1910 extern void set_type_vptr_fieldno (struct type
*, int);
1911 extern struct type
*internal_type_vptr_basetype (struct type
*);
1912 extern void set_type_vptr_basetype (struct type
*, struct type
*);
1913 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1914 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1916 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1917 #define TYPE_SPECIFIC_FIELD(thistype) \
1918 TYPE_MAIN_TYPE(thistype)->type_specific_field
1919 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1920 where we're trying to print an Ada array using the C language.
1921 In that case, there is no "cplus_stuff", but the C language assumes
1922 that there is. What we do, in that case, is pretend that there is
1923 an implicit one which is the default cplus stuff. */
1924 #define TYPE_CPLUS_SPECIFIC(thistype) \
1925 (!HAVE_CPLUS_STRUCT(thistype) \
1926 ? (struct cplus_struct_type*)&cplus_struct_default \
1927 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1928 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1929 #define TYPE_CPLUS_CALLING_CONVENTION(thistype) \
1930 TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff->calling_convention
1931 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1932 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1933 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1934 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1935 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1936 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1937 #define TYPE_BASECLASS(thistype,index) ((thistype)->field (index).type ())
1938 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1939 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1940 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1941 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1942 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1943 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1945 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1946 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1947 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1949 #define FIELD_NAME(thisfld) ((thisfld).name)
1950 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1951 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1952 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1953 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1954 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1955 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1956 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1957 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1958 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1959 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1960 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1961 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1962 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1963 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1964 #define SET_FIELD_PHYSNAME(thisfld, name) \
1965 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1966 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1967 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1968 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1969 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1970 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1971 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1972 FIELD_DWARF_BLOCK (thisfld) = (addr))
1973 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1974 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1976 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME((thistype)->field (n))
1977 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND ((thistype)->field (n))
1978 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS ((thistype)->field (n))
1979 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL ((thistype)->field (n))
1980 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME ((thistype)->field (n))
1981 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR ((thistype)->field (n))
1982 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK ((thistype)->field (n))
1983 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL((thistype)->field (n))
1984 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE((thistype)->field (n))
1985 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE((thistype)->field (n))!=0)
1987 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1988 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1989 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1990 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1991 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1992 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1993 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1994 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1995 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1996 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1997 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1998 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1999 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
2000 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
2001 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
2002 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
2003 #define TYPE_FIELD_PRIVATE(thistype, n) \
2004 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
2005 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
2006 #define TYPE_FIELD_PROTECTED(thistype, n) \
2007 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
2008 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
2009 #define TYPE_FIELD_IGNORE(thistype, n) \
2010 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
2011 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
2012 #define TYPE_FIELD_VIRTUAL(thistype, n) \
2013 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
2014 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
2016 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
2017 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
2018 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
2019 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
2020 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
2022 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
2023 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
2024 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
2025 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
2026 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
2027 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
2029 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
2030 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
2031 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
2032 #define TYPE_FN_FIELD_ARGS(thisfn, n) (((thisfn)[n].type)->fields ())
2033 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
2034 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
2035 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
2036 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
2037 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
2038 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
2039 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
2040 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
2041 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
2042 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
2043 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
2044 #define TYPE_FN_FIELD_DEFAULTED(thisfn, n) ((thisfn)[n].defaulted)
2045 #define TYPE_FN_FIELD_DELETED(thisfn, n) ((thisfn)[n].is_deleted)
2047 /* Accessors for typedefs defined by a class. */
2048 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
2049 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
2050 #define TYPE_TYPEDEF_FIELD(thistype, n) \
2051 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
2052 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
2053 TYPE_TYPEDEF_FIELD (thistype, n).name
2054 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
2055 TYPE_TYPEDEF_FIELD (thistype, n).type
2056 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
2057 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
2058 #define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \
2059 TYPE_TYPEDEF_FIELD (thistype, n).is_protected
2060 #define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
2061 TYPE_TYPEDEF_FIELD (thistype, n).is_private
2063 #define TYPE_NESTED_TYPES_ARRAY(thistype) \
2064 TYPE_CPLUS_SPECIFIC (thistype)->nested_types
2065 #define TYPE_NESTED_TYPES_FIELD(thistype, n) \
2066 TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n]
2067 #define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \
2068 TYPE_NESTED_TYPES_FIELD (thistype, n).name
2069 #define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \
2070 TYPE_NESTED_TYPES_FIELD (thistype, n).type
2071 #define TYPE_NESTED_TYPES_COUNT(thistype) \
2072 TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count
2073 #define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \
2074 TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected
2075 #define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
2076 TYPE_NESTED_TYPES_FIELD (thistype, n).is_private
2078 #define TYPE_IS_OPAQUE(thistype) \
2079 ((((thistype)->code () == TYPE_CODE_STRUCT) \
2080 || ((thistype)->code () == TYPE_CODE_UNION)) \
2081 && ((thistype)->num_fields () == 0) \
2082 && (!HAVE_CPLUS_STRUCT (thistype) \
2083 || TYPE_NFN_FIELDS (thistype) == 0) \
2084 && ((thistype)->is_stub () || !(thistype)->stub_is_supported ()))
2086 /* * A helper macro that returns the name of a type or "unnamed type"
2087 if the type has no name. */
2089 #define TYPE_SAFE_NAME(type) \
2090 (type->name () != nullptr ? type->name () : _("<unnamed type>"))
2092 /* * A helper macro that returns the name of an error type. If the
2093 type has a name, it is used; otherwise, a default is used. */
2095 #define TYPE_ERROR_NAME(type) \
2096 (type->name () ? type->name () : _("<error type>"))
2098 /* Given TYPE, return its floatformat. */
2099 const struct floatformat
*floatformat_from_type (const struct type
*type
);
2103 /* Integral types. */
2105 /* Implicit size/sign (based on the architecture's ABI). */
2106 struct type
*builtin_void
;
2107 struct type
*builtin_char
;
2108 struct type
*builtin_short
;
2109 struct type
*builtin_int
;
2110 struct type
*builtin_long
;
2111 struct type
*builtin_signed_char
;
2112 struct type
*builtin_unsigned_char
;
2113 struct type
*builtin_unsigned_short
;
2114 struct type
*builtin_unsigned_int
;
2115 struct type
*builtin_unsigned_long
;
2116 struct type
*builtin_bfloat16
;
2117 struct type
*builtin_half
;
2118 struct type
*builtin_float
;
2119 struct type
*builtin_double
;
2120 struct type
*builtin_long_double
;
2121 struct type
*builtin_complex
;
2122 struct type
*builtin_double_complex
;
2123 struct type
*builtin_string
;
2124 struct type
*builtin_bool
;
2125 struct type
*builtin_long_long
;
2126 struct type
*builtin_unsigned_long_long
;
2127 struct type
*builtin_decfloat
;
2128 struct type
*builtin_decdouble
;
2129 struct type
*builtin_declong
;
2131 /* "True" character types.
2132 We use these for the '/c' print format, because c_char is just a
2133 one-byte integral type, which languages less laid back than C
2134 will print as ... well, a one-byte integral type. */
2135 struct type
*builtin_true_char
;
2136 struct type
*builtin_true_unsigned_char
;
2138 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
2139 is for when an architecture needs to describe a register that has
2141 struct type
*builtin_int0
;
2142 struct type
*builtin_int8
;
2143 struct type
*builtin_uint8
;
2144 struct type
*builtin_int16
;
2145 struct type
*builtin_uint16
;
2146 struct type
*builtin_int24
;
2147 struct type
*builtin_uint24
;
2148 struct type
*builtin_int32
;
2149 struct type
*builtin_uint32
;
2150 struct type
*builtin_int64
;
2151 struct type
*builtin_uint64
;
2152 struct type
*builtin_int128
;
2153 struct type
*builtin_uint128
;
2155 /* Wide character types. */
2156 struct type
*builtin_char16
;
2157 struct type
*builtin_char32
;
2158 struct type
*builtin_wchar
;
2160 /* Pointer types. */
2162 /* * `pointer to data' type. Some target platforms use an implicitly
2163 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
2164 struct type
*builtin_data_ptr
;
2166 /* * `pointer to function (returning void)' type. Harvard
2167 architectures mean that ABI function and code pointers are not
2168 interconvertible. Similarly, since ANSI, C standards have
2169 explicitly said that pointers to functions and pointers to data
2170 are not interconvertible --- that is, you can't cast a function
2171 pointer to void * and back, and expect to get the same value.
2172 However, all function pointer types are interconvertible, so void
2173 (*) () can server as a generic function pointer. */
2175 struct type
*builtin_func_ptr
;
2177 /* * `function returning pointer to function (returning void)' type.
2178 The final void return type is not significant for it. */
2180 struct type
*builtin_func_func
;
2182 /* Special-purpose types. */
2184 /* * This type is used to represent a GDB internal function. */
2186 struct type
*internal_fn
;
2188 /* * This type is used to represent an xmethod. */
2189 struct type
*xmethod
;
2192 /* * Return the type table for the specified architecture. */
2194 extern const struct builtin_type
*builtin_type (struct gdbarch
*gdbarch
);
2196 /* * Per-objfile types used by symbol readers. */
2200 /* Basic types based on the objfile architecture. */
2201 struct type
*builtin_void
;
2202 struct type
*builtin_char
;
2203 struct type
*builtin_short
;
2204 struct type
*builtin_int
;
2205 struct type
*builtin_long
;
2206 struct type
*builtin_long_long
;
2207 struct type
*builtin_signed_char
;
2208 struct type
*builtin_unsigned_char
;
2209 struct type
*builtin_unsigned_short
;
2210 struct type
*builtin_unsigned_int
;
2211 struct type
*builtin_unsigned_long
;
2212 struct type
*builtin_unsigned_long_long
;
2213 struct type
*builtin_half
;
2214 struct type
*builtin_float
;
2215 struct type
*builtin_double
;
2216 struct type
*builtin_long_double
;
2218 /* * This type is used to represent symbol addresses. */
2219 struct type
*builtin_core_addr
;
2221 /* * This type represents a type that was unrecognized in symbol
2223 struct type
*builtin_error
;
2225 /* * Types used for symbols with no debug information. */
2226 struct type
*nodebug_text_symbol
;
2227 struct type
*nodebug_text_gnu_ifunc_symbol
;
2228 struct type
*nodebug_got_plt_symbol
;
2229 struct type
*nodebug_data_symbol
;
2230 struct type
*nodebug_unknown_symbol
;
2231 struct type
*nodebug_tls_symbol
;
2234 /* * Return the type table for the specified objfile. */
2236 extern const struct objfile_type
*objfile_type (struct objfile
*objfile
);
2238 /* Explicit floating-point formats. See "floatformat.h". */
2239 extern const struct floatformat
*floatformats_ieee_half
[BFD_ENDIAN_UNKNOWN
];
2240 extern const struct floatformat
*floatformats_ieee_single
[BFD_ENDIAN_UNKNOWN
];
2241 extern const struct floatformat
*floatformats_ieee_double
[BFD_ENDIAN_UNKNOWN
];
2242 extern const struct floatformat
*floatformats_ieee_double_littlebyte_bigword
[BFD_ENDIAN_UNKNOWN
];
2243 extern const struct floatformat
*floatformats_i387_ext
[BFD_ENDIAN_UNKNOWN
];
2244 extern const struct floatformat
*floatformats_m68881_ext
[BFD_ENDIAN_UNKNOWN
];
2245 extern const struct floatformat
*floatformats_arm_ext
[BFD_ENDIAN_UNKNOWN
];
2246 extern const struct floatformat
*floatformats_ia64_spill
[BFD_ENDIAN_UNKNOWN
];
2247 extern const struct floatformat
*floatformats_ia64_quad
[BFD_ENDIAN_UNKNOWN
];
2248 extern const struct floatformat
*floatformats_vax_f
[BFD_ENDIAN_UNKNOWN
];
2249 extern const struct floatformat
*floatformats_vax_d
[BFD_ENDIAN_UNKNOWN
];
2250 extern const struct floatformat
*floatformats_ibm_long_double
[BFD_ENDIAN_UNKNOWN
];
2251 extern const struct floatformat
*floatformats_bfloat16
[BFD_ENDIAN_UNKNOWN
];
2253 /* Allocate space for storing data associated with a particular
2254 type. We ensure that the space is allocated using the same
2255 mechanism that was used to allocate the space for the type
2256 structure itself. I.e. if the type is on an objfile's
2257 objfile_obstack, then the space for data associated with that type
2258 will also be allocated on the objfile_obstack. If the type is
2259 associated with a gdbarch, then the space for data associated with that
2260 type will also be allocated on the gdbarch_obstack.
2262 If a type is not associated with neither an objfile or a gdbarch then
2263 you should not use this macro to allocate space for data, instead you
2264 should call xmalloc directly, and ensure the memory is correctly freed
2265 when it is no longer needed. */
2267 #define TYPE_ALLOC(t,size) \
2268 (obstack_alloc (((t)->is_objfile_owned () \
2269 ? &((t)->objfile_owner ()->objfile_obstack) \
2270 : gdbarch_obstack ((t)->arch_owner ())), \
2274 /* See comment on TYPE_ALLOC. */
2276 #define TYPE_ZALLOC(t,size) (memset (TYPE_ALLOC (t, size), 0, size))
2278 /* Use alloc_type to allocate a type owned by an objfile. Use
2279 alloc_type_arch to allocate a type owned by an architecture. Use
2280 alloc_type_copy to allocate a type with the same owner as a
2281 pre-existing template type, no matter whether objfile or
2283 extern struct type
*alloc_type (struct objfile
*);
2284 extern struct type
*alloc_type_arch (struct gdbarch
*);
2285 extern struct type
*alloc_type_copy (const struct type
*);
2287 /* * This returns the target type (or NULL) of TYPE, also skipping
2290 extern struct type
*get_target_type (struct type
*type
);
2292 /* Return the equivalent of TYPE_LENGTH, but in number of target
2293 addressable memory units of the associated gdbarch instead of bytes. */
2295 extern unsigned int type_length_units (struct type
*type
);
2297 /* * Helper function to construct objfile-owned types. */
2299 extern struct type
*init_type (struct objfile
*, enum type_code
, int,
2301 extern struct type
*init_integer_type (struct objfile
*, int, int,
2303 extern struct type
*init_character_type (struct objfile
*, int, int,
2305 extern struct type
*init_boolean_type (struct objfile
*, int, int,
2307 extern struct type
*init_float_type (struct objfile
*, int, const char *,
2308 const struct floatformat
**,
2309 enum bfd_endian
= BFD_ENDIAN_UNKNOWN
);
2310 extern struct type
*init_decfloat_type (struct objfile
*, int, const char *);
2311 extern bool can_create_complex_type (struct type
*);
2312 extern struct type
*init_complex_type (const char *, struct type
*);
2313 extern struct type
*init_pointer_type (struct objfile
*, int, const char *,
2315 extern struct type
*init_fixed_point_type (struct objfile
*, int, int,
2318 /* Helper functions to construct architecture-owned types. */
2319 extern struct type
*arch_type (struct gdbarch
*, enum type_code
, int,
2321 extern struct type
*arch_integer_type (struct gdbarch
*, int, int,
2323 extern struct type
*arch_character_type (struct gdbarch
*, int, int,
2325 extern struct type
*arch_boolean_type (struct gdbarch
*, int, int,
2327 extern struct type
*arch_float_type (struct gdbarch
*, int, const char *,
2328 const struct floatformat
**);
2329 extern struct type
*arch_decfloat_type (struct gdbarch
*, int, const char *);
2330 extern struct type
*arch_pointer_type (struct gdbarch
*, int, const char *,
2333 /* Helper functions to construct a struct or record type. An
2334 initially empty type is created using arch_composite_type().
2335 Fields are then added using append_composite_type_field*(). A union
2336 type has its size set to the largest field. A struct type has each
2337 field packed against the previous. */
2339 extern struct type
*arch_composite_type (struct gdbarch
*gdbarch
,
2340 const char *name
, enum type_code code
);
2341 extern void append_composite_type_field (struct type
*t
, const char *name
,
2342 struct type
*field
);
2343 extern void append_composite_type_field_aligned (struct type
*t
,
2347 struct field
*append_composite_type_field_raw (struct type
*t
, const char *name
,
2348 struct type
*field
);
2350 /* Helper functions to construct a bit flags type. An initially empty
2351 type is created using arch_flag_type(). Flags are then added using
2352 append_flag_type_field() and append_flag_type_flag(). */
2353 extern struct type
*arch_flags_type (struct gdbarch
*gdbarch
,
2354 const char *name
, int bit
);
2355 extern void append_flags_type_field (struct type
*type
,
2356 int start_bitpos
, int nr_bits
,
2357 struct type
*field_type
, const char *name
);
2358 extern void append_flags_type_flag (struct type
*type
, int bitpos
,
2361 extern void make_vector_type (struct type
*array_type
);
2362 extern struct type
*init_vector_type (struct type
*elt_type
, int n
);
2364 extern struct type
*lookup_reference_type (struct type
*, enum type_code
);
2365 extern struct type
*lookup_lvalue_reference_type (struct type
*);
2366 extern struct type
*lookup_rvalue_reference_type (struct type
*);
2369 extern struct type
*make_reference_type (struct type
*, struct type
**,
2372 extern struct type
*make_cv_type (int, int, struct type
*, struct type
**);
2374 extern struct type
*make_restrict_type (struct type
*);
2376 extern struct type
*make_unqualified_type (struct type
*);
2378 extern struct type
*make_atomic_type (struct type
*);
2380 extern void replace_type (struct type
*, struct type
*);
2382 extern type_instance_flags address_space_name_to_type_instance_flags
2383 (struct gdbarch
*, const char *);
2385 extern const char *address_space_type_instance_flags_to_name
2386 (struct gdbarch
*, type_instance_flags
);
2388 extern struct type
*make_type_with_address_space
2389 (struct type
*type
, type_instance_flags space_identifier
);
2391 extern struct type
*lookup_memberptr_type (struct type
*, struct type
*);
2393 extern struct type
*lookup_methodptr_type (struct type
*);
2395 extern void smash_to_method_type (struct type
*type
, struct type
*self_type
,
2396 struct type
*to_type
, struct field
*args
,
2397 int nargs
, int varargs
);
2399 extern void smash_to_memberptr_type (struct type
*, struct type
*,
2402 extern void smash_to_methodptr_type (struct type
*, struct type
*);
2404 extern struct type
*allocate_stub_method (struct type
*);
2406 extern const char *type_name_or_error (struct type
*type
);
2410 /* The field of the element, or NULL if no element was found. */
2411 struct field
*field
;
2413 /* The bit offset of the element in the parent structure. */
2417 /* Given a type TYPE, lookup the field and offset of the component named
2420 TYPE can be either a struct or union, or a pointer or reference to
2421 a struct or union. If it is a pointer or reference, its target
2422 type is automatically used. Thus '.' and '->' are interchangable,
2423 as specified for the definitions of the expression element types
2424 STRUCTOP_STRUCT and STRUCTOP_PTR.
2426 If NOERR is nonzero, the returned structure will have field set to
2427 NULL if there is no component named NAME.
2429 If the component NAME is a field in an anonymous substructure of
2430 TYPE, the returned offset is a "global" offset relative to TYPE
2431 rather than an offset within the substructure. */
2433 extern struct_elt
lookup_struct_elt (struct type
*, const char *, int);
2435 /* Given a type TYPE, lookup the type of the component named NAME.
2437 TYPE can be either a struct or union, or a pointer or reference to
2438 a struct or union. If it is a pointer or reference, its target
2439 type is automatically used. Thus '.' and '->' are interchangable,
2440 as specified for the definitions of the expression element types
2441 STRUCTOP_STRUCT and STRUCTOP_PTR.
2443 If NOERR is nonzero, return NULL if there is no component named
2446 extern struct type
*lookup_struct_elt_type (struct type
*, const char *, int);
2448 extern struct type
*make_pointer_type (struct type
*, struct type
**);
2450 extern struct type
*lookup_pointer_type (struct type
*);
2452 extern struct type
*make_function_type (struct type
*, struct type
**);
2454 extern struct type
*lookup_function_type (struct type
*);
2456 extern struct type
*lookup_function_type_with_arguments (struct type
*,
2460 extern struct type
*create_static_range_type (struct type
*, struct type
*,
2464 extern struct type
*create_array_type_with_stride
2465 (struct type
*, struct type
*, struct type
*,
2466 struct dynamic_prop
*, unsigned int);
2468 extern struct type
*create_range_type (struct type
*, struct type
*,
2469 const struct dynamic_prop
*,
2470 const struct dynamic_prop
*,
2473 /* Like CREATE_RANGE_TYPE but also sets up a stride. When BYTE_STRIDE_P
2474 is true the value in STRIDE is a byte stride, otherwise STRIDE is a bit
2477 extern struct type
* create_range_type_with_stride
2478 (struct type
*result_type
, struct type
*index_type
,
2479 const struct dynamic_prop
*low_bound
,
2480 const struct dynamic_prop
*high_bound
, LONGEST bias
,
2481 const struct dynamic_prop
*stride
, bool byte_stride_p
);
2483 extern struct type
*create_array_type (struct type
*, struct type
*,
2486 extern struct type
*lookup_array_range_type (struct type
*, LONGEST
, LONGEST
);
2488 extern struct type
*create_string_type (struct type
*, struct type
*,
2490 extern struct type
*lookup_string_range_type (struct type
*, LONGEST
, LONGEST
);
2492 extern struct type
*create_set_type (struct type
*, struct type
*);
2494 extern struct type
*lookup_unsigned_typename (const struct language_defn
*,
2497 extern struct type
*lookup_signed_typename (const struct language_defn
*,
2500 extern void get_unsigned_type_max (struct type
*, ULONGEST
*);
2502 extern void get_signed_type_minmax (struct type
*, LONGEST
*, LONGEST
*);
2504 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
2505 ADDR specifies the location of the variable the type is bound to.
2506 If TYPE has no dynamic properties return TYPE; otherwise a new type with
2507 static properties is returned. */
2508 extern struct type
*resolve_dynamic_type
2509 (struct type
*type
, gdb::array_view
<const gdb_byte
> valaddr
,
2512 /* * Predicate if the type has dynamic values, which are not resolved yet. */
2513 extern int is_dynamic_type (struct type
*type
);
2515 extern struct type
*check_typedef (struct type
*);
2517 extern void check_stub_method_group (struct type
*, int);
2519 extern char *gdb_mangle_name (struct type
*, int, int);
2521 extern struct type
*lookup_typename (const struct language_defn
*,
2522 const char *, const struct block
*, int);
2524 extern struct type
*lookup_template_type (const char *, struct type
*,
2525 const struct block
*);
2527 extern int get_vptr_fieldno (struct type
*, struct type
**);
2529 /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type
2532 Return true if the two bounds are available, false otherwise. */
2534 extern bool get_discrete_bounds (struct type
*type
, LONGEST
*lowp
,
2537 /* If TYPE's low bound is a known constant, return it, else return nullopt. */
2539 extern gdb::optional
<LONGEST
> get_discrete_low_bound (struct type
*type
);
2541 /* If TYPE's high bound is a known constant, return it, else return nullopt. */
2543 extern gdb::optional
<LONGEST
> get_discrete_high_bound (struct type
*type
);
2545 /* Assuming TYPE is a simple, non-empty array type, compute its upper
2546 and lower bound. Save the low bound into LOW_BOUND if not NULL.
2547 Save the high bound into HIGH_BOUND if not NULL.
2549 Return true if the operation was successful. Return false otherwise,
2550 in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. */
2552 extern bool get_array_bounds (struct type
*type
, LONGEST
*low_bound
,
2553 LONGEST
*high_bound
);
2555 extern gdb::optional
<LONGEST
> discrete_position (struct type
*type
,
2558 extern int class_types_same_p (const struct type
*, const struct type
*);
2560 extern int is_ancestor (struct type
*, struct type
*);
2562 extern int is_public_ancestor (struct type
*, struct type
*);
2564 extern int is_unique_ancestor (struct type
*, struct value
*);
2566 /* Overload resolution */
2568 /* * Badness if parameter list length doesn't match arg list length. */
2569 extern const struct rank LENGTH_MISMATCH_BADNESS
;
2571 /* * Dummy badness value for nonexistent parameter positions. */
2572 extern const struct rank TOO_FEW_PARAMS_BADNESS
;
2573 /* * Badness if no conversion among types. */
2574 extern const struct rank INCOMPATIBLE_TYPE_BADNESS
;
2576 /* * Badness of an exact match. */
2577 extern const struct rank EXACT_MATCH_BADNESS
;
2579 /* * Badness of integral promotion. */
2580 extern const struct rank INTEGER_PROMOTION_BADNESS
;
2581 /* * Badness of floating promotion. */
2582 extern const struct rank FLOAT_PROMOTION_BADNESS
;
2583 /* * Badness of converting a derived class pointer
2584 to a base class pointer. */
2585 extern const struct rank BASE_PTR_CONVERSION_BADNESS
;
2586 /* * Badness of integral conversion. */
2587 extern const struct rank INTEGER_CONVERSION_BADNESS
;
2588 /* * Badness of floating conversion. */
2589 extern const struct rank FLOAT_CONVERSION_BADNESS
;
2590 /* * Badness of integer<->floating conversions. */
2591 extern const struct rank INT_FLOAT_CONVERSION_BADNESS
;
2592 /* * Badness of conversion of pointer to void pointer. */
2593 extern const struct rank VOID_PTR_CONVERSION_BADNESS
;
2594 /* * Badness of conversion to boolean. */
2595 extern const struct rank BOOL_CONVERSION_BADNESS
;
2596 /* * Badness of converting derived to base class. */
2597 extern const struct rank BASE_CONVERSION_BADNESS
;
2598 /* * Badness of converting from non-reference to reference. Subrank
2599 is the type of reference conversion being done. */
2600 extern const struct rank REFERENCE_CONVERSION_BADNESS
;
2601 extern const struct rank REFERENCE_SEE_THROUGH_BADNESS
;
2602 /* * Conversion to rvalue reference. */
2603 #define REFERENCE_CONVERSION_RVALUE 1
2604 /* * Conversion to const lvalue reference. */
2605 #define REFERENCE_CONVERSION_CONST_LVALUE 2
2607 /* * Badness of converting integer 0 to NULL pointer. */
2608 extern const struct rank NULL_POINTER_CONVERSION
;
2609 /* * Badness of cv-conversion. Subrank is a flag describing the conversions
2611 extern const struct rank CV_CONVERSION_BADNESS
;
2612 #define CV_CONVERSION_CONST 1
2613 #define CV_CONVERSION_VOLATILE 2
2615 /* Non-standard conversions allowed by the debugger */
2617 /* * Converting a pointer to an int is usually OK. */
2618 extern const struct rank NS_POINTER_CONVERSION_BADNESS
;
2620 /* * Badness of converting a (non-zero) integer constant
2622 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS
;
2624 extern struct rank
sum_ranks (struct rank a
, struct rank b
);
2625 extern int compare_ranks (struct rank a
, struct rank b
);
2627 extern int compare_badness (const badness_vector
&,
2628 const badness_vector
&);
2630 extern badness_vector
rank_function (gdb::array_view
<type
*> parms
,
2631 gdb::array_view
<value
*> args
);
2633 extern struct rank
rank_one_type (struct type
*, struct type
*,
2636 extern void recursive_dump_type (struct type
*, int);
2638 extern int field_is_static (struct field
*);
2642 extern void print_scalar_formatted (const gdb_byte
*, struct type
*,
2643 const struct value_print_options
*,
2644 int, struct ui_file
*);
2646 extern int can_dereference (struct type
*);
2648 extern int is_integral_type (struct type
*);
2650 extern int is_floating_type (struct type
*);
2652 extern int is_scalar_type (struct type
*type
);
2654 extern int is_scalar_type_recursive (struct type
*);
2656 extern int class_or_union_p (const struct type
*);
2658 extern void maintenance_print_type (const char *, int);
2660 extern htab_up
create_copied_types_hash (struct objfile
*objfile
);
2662 extern struct type
*copy_type_recursive (struct objfile
*objfile
,
2664 htab_t copied_types
);
2666 extern struct type
*copy_type (const struct type
*type
);
2668 extern bool types_equal (struct type
*, struct type
*);
2670 extern bool types_deeply_equal (struct type
*, struct type
*);
2672 extern int type_not_allocated (const struct type
*type
);
2674 extern int type_not_associated (const struct type
*type
);
2676 /* Return True if TYPE is a TYPE_CODE_FIXED_POINT or if TYPE is
2677 a range type whose base type is a TYPE_CODE_FIXED_POINT. */
2678 extern bool is_fixed_point_type (struct type
*type
);
2680 /* Allocate a fixed-point type info for TYPE. This should only be
2681 called by INIT_FIXED_POINT_SPECIFIC. */
2682 extern void allocate_fixed_point_type_info (struct type
*type
);
2684 /* * When the type includes explicit byte ordering, return that.
2685 Otherwise, the byte ordering from gdbarch_byte_order for
2686 the type's arch is returned. */
2688 extern enum bfd_endian
type_byte_order (const struct type
*type
);
2690 /* A flag to enable printing of debugging information of C++
2693 extern unsigned int overload_debug
;
2695 #endif /* GDBTYPES_H */