2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2017 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"
50 /* Forward declarations for prototypes. */
53 struct value_print_options
;
56 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
57 are already DWARF-specific. */
59 /* * Offset relative to the start of its containing CU (compilation
61 DEFINE_OFFSET_TYPE (cu_offset
, unsigned int);
63 /* * Offset relative to the start of its .debug_info or .debug_types
65 DEFINE_OFFSET_TYPE (sect_offset
, unsigned int);
67 /* Some macros for char-based bitfields. */
69 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
70 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
71 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
72 #define B_TYPE unsigned char
73 #define B_BYTES(x) ( 1 + ((x)>>3) )
74 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
76 /* * Different kinds of data types are distinguished by the `code'
81 TYPE_CODE_BITSTRING
= -1, /**< Deprecated */
82 TYPE_CODE_UNDEF
= 0, /**< Not used; catches errors */
83 TYPE_CODE_PTR
, /**< Pointer type */
85 /* * Array type with lower & upper bounds.
87 Regardless of the language, GDB represents multidimensional
88 array types the way C does: as arrays of arrays. So an
89 instance of a GDB array type T can always be seen as a series
90 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
93 Row-major languages like C lay out multi-dimensional arrays so
94 that incrementing the rightmost index in a subscripting
95 expression results in the smallest change in the address of the
96 element referred to. Column-major languages like Fortran lay
97 them out so that incrementing the leftmost index results in the
100 This means that, in column-major languages, working our way
101 from type to target type corresponds to working through indices
102 from right to left, not left to right. */
105 TYPE_CODE_STRUCT
, /**< C struct or Pascal record */
106 TYPE_CODE_UNION
, /**< C union or Pascal variant part */
107 TYPE_CODE_ENUM
, /**< Enumeration type */
108 TYPE_CODE_FLAGS
, /**< Bit flags type */
109 TYPE_CODE_FUNC
, /**< Function type */
110 TYPE_CODE_INT
, /**< Integer type */
112 /* * Floating type. This is *NOT* a complex type. Beware, there
113 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
117 /* * Void type. The length field specifies the length (probably
118 always one) which is used in pointer arithmetic involving
119 pointers to this type, but actually dereferencing such a
120 pointer is invalid; a void type has no length and no actual
121 representation in memory or registers. A pointer to a void
122 type is a generic pointer. */
125 TYPE_CODE_SET
, /**< Pascal sets */
126 TYPE_CODE_RANGE
, /**< Range (integers within spec'd bounds). */
128 /* * A string type which is like an array of character but prints
129 differently. It does not contain a length field as Pascal
130 strings (for many Pascals, anyway) do; if we want to deal with
131 such strings, we should use a new type code. */
134 /* * Unknown type. The length field is valid if we were able to
135 deduce that much about the type, or 0 if we don't even know
140 TYPE_CODE_METHOD
, /**< Method type */
142 /* * Pointer-to-member-function type. This describes how to access a
143 particular member function of a class (possibly a virtual
144 member function). The representation may vary between different
148 /* * Pointer-to-member type. This is the offset within a class to
149 some particular data member. The only currently supported
150 representation uses an unbiased offset, with -1 representing
151 NULL; this is used by the Itanium C++ ABI (used by GCC on all
155 TYPE_CODE_REF
, /**< C++ Reference types */
157 TYPE_CODE_RVALUE_REF
, /**< C++ rvalue reference types */
159 TYPE_CODE_CHAR
, /**< *real* character type */
161 /* * Boolean type. 0 is false, 1 is true, and other values are
162 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
166 TYPE_CODE_COMPLEX
, /**< Complex float */
170 TYPE_CODE_NAMESPACE
, /**< C++ namespace. */
172 TYPE_CODE_DECFLOAT
, /**< Decimal floating point. */
174 TYPE_CODE_MODULE
, /**< Fortran module. */
176 /* * Internal function type. */
177 TYPE_CODE_INTERNAL_FUNCTION
,
179 /* * Methods implemented in extension languages. */
183 /* * Some bits for the type's instance_flags word. See the macros
184 below for documentation on each bit. */
186 enum type_instance_flag_value
188 TYPE_INSTANCE_FLAG_CONST
= (1 << 0),
189 TYPE_INSTANCE_FLAG_VOLATILE
= (1 << 1),
190 TYPE_INSTANCE_FLAG_CODE_SPACE
= (1 << 2),
191 TYPE_INSTANCE_FLAG_DATA_SPACE
= (1 << 3),
192 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1
= (1 << 4),
193 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2
= (1 << 5),
194 TYPE_INSTANCE_FLAG_NOTTEXT
= (1 << 6),
195 TYPE_INSTANCE_FLAG_RESTRICT
= (1 << 7),
196 TYPE_INSTANCE_FLAG_ATOMIC
= (1 << 8)
199 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
200 the type is signed (unless TYPE_NOSIGN (below) is set). */
202 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
204 /* * No sign for this type. In C++, "char", "signed char", and
205 "unsigned char" are distinct types; so we need an extra flag to
206 indicate the absence of a sign! */
208 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
210 /* * This appears in a type's flags word if it is a stub type (e.g.,
211 if someone referenced a type that wasn't defined in a source file
212 via (struct sir_not_appearing_in_this_film *)). */
214 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
216 /* * The target type of this type is a stub type, and this type needs
217 to be updated if it gets un-stubbed in check_typedef. Used for
218 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
219 based on the TYPE_LENGTH of the target type. Also, set for
220 TYPE_CODE_TYPEDEF. */
222 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
224 /* * This is a function type which appears to have a prototype. We
225 need this for function calls in order to tell us if it's necessary
226 to coerce the args, or to just do the standard conversions. This
227 is used with a short field. */
229 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
231 /* * This flag is used to indicate that processing for this type
234 (Mostly intended for HP platforms, where class methods, for
235 instance, can be encountered before their classes in the debug
236 info; the incomplete type has to be marked so that the class and
237 the method can be assigned correct types.) */
239 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
241 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
244 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
246 /* * Identify a vector type. Gcc is handling this by adding an extra
247 attribute to the array type. We slurp that in as a new flag of a
248 type. This is used only in dwarf2read.c. */
249 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
251 /* * The debugging formats (especially STABS) do not contain enough
252 information to represent all Ada types---especially those whose
253 size depends on dynamic quantities. Therefore, the GNAT Ada
254 compiler includes extra information in the form of additional type
255 definitions connected by naming conventions. This flag indicates
256 that the type is an ordinary (unencoded) GDB type that has been
257 created from the necessary run-time information, and does not need
258 further interpretation. Optionally marks ordinary, fixed-size GDB
261 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
263 /* * This debug target supports TYPE_STUB(t). In the unsupported case
264 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
265 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
266 guessed the TYPE_STUB(t) value (see dwarfread.c). */
268 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
270 /* * Not textual. By default, GDB treats all single byte integers as
271 characters (or elements of strings) unless this flag is set. */
273 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
275 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
276 address is returned by this function call. TYPE_TARGET_TYPE
277 determines the final returned function type to be presented to
280 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
282 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
283 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
284 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
286 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
287 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
288 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
290 /* * True if this type was declared using the "class" keyword. This is
291 only valid for C++ structure and enum types. If false, a structure
292 was declared as a "struct"; if true it was declared "class". For
293 enum types, this is true when "enum class" or "enum struct" was
294 used to declare the type.. */
296 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
298 /* * True if this type is a "flag" enum. A flag enum is one where all
299 the values are pairwise disjoint when "and"ed together. This
300 affects how enum values are printed. */
302 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
304 /* * Constant type. If this is set, the corresponding type has a
307 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
309 /* * Volatile type. If this is set, the corresponding type has a
310 volatile modifier. */
312 #define TYPE_VOLATILE(t) \
313 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
315 /* * Restrict type. If this is set, the corresponding type has a
316 restrict modifier. */
318 #define TYPE_RESTRICT(t) \
319 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT)
321 /* * Atomic type. If this is set, the corresponding type has an
324 #define TYPE_ATOMIC(t) \
325 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC)
327 /* * True if this type represents either an lvalue or lvalue reference type. */
329 #define TYPE_IS_REFERENCE(t) \
330 (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
332 /* * Instruction-space delimited type. This is for Harvard architectures
333 which have separate instruction and data address spaces (and perhaps
336 GDB usually defines a flat address space that is a superset of the
337 architecture's two (or more) address spaces, but this is an extension
338 of the architecture's model.
340 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
341 resides in instruction memory, even if its address (in the extended
342 flat address space) does not reflect this.
344 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
345 corresponding type resides in the data memory space, even if
346 this is not indicated by its (flat address space) address.
348 If neither flag is set, the default space for functions / methods
349 is instruction space, and for data objects is data memory. */
351 #define TYPE_CODE_SPACE(t) \
352 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
354 #define TYPE_DATA_SPACE(t) \
355 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
357 /* * Address class flags. Some environments provide for pointers
358 whose size is different from that of a normal pointer or address
359 types where the bits are interpreted differently than normal
360 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
361 target specific ways to represent these different types of address
364 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
365 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
366 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
367 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
368 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
369 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
370 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
371 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
373 enum dynamic_prop_kind
375 PROP_UNDEFINED
, /* Not defined. */
376 PROP_CONST
, /* Constant. */
377 PROP_ADDR_OFFSET
, /* Address offset. */
378 PROP_LOCEXPR
, /* Location expression. */
379 PROP_LOCLIST
/* Location list. */
382 union dynamic_prop_data
384 /* Storage for constant property. */
388 /* Storage for dynamic property. */
393 /* * Used to store a dynamic property. */
397 /* Determine which field of the union dynamic_prop.data is used. */
398 enum dynamic_prop_kind kind
;
400 /* Storage for dynamic or static value. */
401 union dynamic_prop_data data
;
404 /* * Define a type's dynamic property node kind. */
405 enum dynamic_prop_node_kind
407 /* A property providing a type's data location.
408 Evaluating this field yields to the location of an object's data. */
409 DYN_PROP_DATA_LOCATION
,
411 /* A property representing DW_AT_allocated. The presence of this attribute
412 indicates that the object of the type can be allocated/deallocated. */
415 /* A property representing DW_AT_allocated. The presence of this attribute
416 indicated that the object of the type can be associated. */
420 /* * List for dynamic type attributes. */
421 struct dynamic_prop_list
423 /* The kind of dynamic prop in this node. */
424 enum dynamic_prop_node_kind prop_kind
;
426 /* The dynamic property itself. */
427 struct dynamic_prop prop
;
429 /* A pointer to the next dynamic property. */
430 struct dynamic_prop_list
*next
;
433 /* * Determine which field of the union main_type.fields[x].loc is
438 FIELD_LOC_KIND_BITPOS
, /**< bitpos */
439 FIELD_LOC_KIND_ENUMVAL
, /**< enumval */
440 FIELD_LOC_KIND_PHYSADDR
, /**< physaddr */
441 FIELD_LOC_KIND_PHYSNAME
, /**< physname */
442 FIELD_LOC_KIND_DWARF_BLOCK
/**< dwarf_block */
445 /* * A discriminant to determine which field in the
446 main_type.type_specific union is being used, if any.
448 For types such as TYPE_CODE_FLT, the use of this
449 discriminant is really redundant, as we know from the type code
450 which field is going to be used. As such, it would be possible to
451 reduce the size of this enum in order to save a bit or two for
452 other fields of struct main_type. But, since we still have extra
453 room , and for the sake of clarity and consistency, we treat all fields
454 of the union the same way. */
456 enum type_specific_kind
459 TYPE_SPECIFIC_CPLUS_STUFF
,
460 TYPE_SPECIFIC_GNAT_STUFF
,
461 TYPE_SPECIFIC_FLOATFORMAT
,
462 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
464 TYPE_SPECIFIC_SELF_TYPE
469 struct objfile
*objfile
;
470 struct gdbarch
*gdbarch
;
475 /* * Position of this field, counting in bits from start of
476 containing structure. For gdbarch_bits_big_endian=1
477 targets, it is the bit offset to the MSB. For
478 gdbarch_bits_big_endian=0 targets, it is the bit offset to
486 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
487 physaddr is the location (in the target) of the static
488 field. Otherwise, physname is the mangled label of the
492 const char *physname
;
494 /* * The field location can be computed by evaluating the
495 following DWARF block. Its DATA is allocated on
496 objfile_obstack - no CU load is needed to access it. */
498 struct dwarf2_locexpr_baton
*dwarf_block
;
503 union field_location loc
;
505 /* * For a function or member type, this is 1 if the argument is
506 marked artificial. Artificial arguments should not be shown
507 to the user. For TYPE_CODE_RANGE it is set if the specific
508 bound is not defined. */
510 unsigned int artificial
: 1;
512 /* * Discriminant for union field_location. */
514 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
516 /* * Size of this field, in bits, or zero if not packed.
517 If non-zero in an array type, indicates the element size in
518 bits (used only in Ada at the moment).
519 For an unpacked field, the field's type's length
520 says how many bytes the field occupies. */
522 unsigned int bitsize
: 28;
524 /* * In a struct or union type, type of this field.
525 - In a function or member type, type of this argument.
526 - In an array type, the domain-type of the array. */
530 /* * Name of field, value or argument.
531 NULL for range bounds, array domains, and member function
539 /* * Low bound of range. */
541 struct dynamic_prop low
;
543 /* * High bound of range. */
545 struct dynamic_prop high
;
547 /* True if HIGH range bound contains the number of elements in the
548 subrange. This affects how the final hight bound is computed. */
550 int flag_upper_bound_is_count
: 1;
552 /* True if LOW or/and HIGH are resolved into a static bound from
555 int flag_bound_evaluated
: 1;
560 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
561 point to cplus_struct_default, a default static instance of a
562 struct cplus_struct_type. */
564 struct cplus_struct_type
*cplus_stuff
;
566 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
567 provides additional information. */
569 struct gnat_aux_type
*gnat_stuff
;
571 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
572 floatformat objects that describe the floating-point value
573 that resides within the type. The first is for big endian
574 targets and the second is for little endian targets. */
576 const struct floatformat
**floatformat
;
578 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
580 struct func_type
*func_stuff
;
582 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
583 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
586 struct type
*self_type
;
589 /* * Main structure representing a type in GDB.
591 This structure is space-critical. Its layout has been tweaked to
592 reduce the space used. */
596 /* * Code for kind of type. */
598 ENUM_BITFIELD(type_code
) code
: 8;
600 /* * Flags about this type. These fields appear at this location
601 because they packs nicely here. See the TYPE_* macros for
602 documentation about these fields. */
604 unsigned int flag_unsigned
: 1;
605 unsigned int flag_nosign
: 1;
606 unsigned int flag_stub
: 1;
607 unsigned int flag_target_stub
: 1;
608 unsigned int flag_static
: 1;
609 unsigned int flag_prototyped
: 1;
610 unsigned int flag_incomplete
: 1;
611 unsigned int flag_varargs
: 1;
612 unsigned int flag_vector
: 1;
613 unsigned int flag_stub_supported
: 1;
614 unsigned int flag_gnu_ifunc
: 1;
615 unsigned int flag_fixed_instance
: 1;
616 unsigned int flag_objfile_owned
: 1;
618 /* * True if this type was declared with "class" rather than
621 unsigned int flag_declared_class
: 1;
623 /* * True if this is an enum type with disjoint values. This
624 affects how the enum is printed. */
626 unsigned int flag_flag_enum
: 1;
628 /* * A discriminant telling us which field of the type_specific
629 union is being used for this type, if any. */
631 ENUM_BITFIELD(type_specific_kind
) type_specific_field
: 3;
633 /* * Number of fields described for this type. This field appears
634 at this location because it packs nicely here. */
638 /* * Name of this type, or NULL if none.
640 This is used for printing only, except by poorly designed C++
641 code. For looking up a name, look for a symbol in the
642 VAR_DOMAIN. This is generally allocated in the objfile's
643 obstack. However coffread.c uses malloc. */
647 /* * Tag name for this type, or NULL if none. This means that the
648 name of the type consists of a keyword followed by the tag name.
649 Which keyword is determined by the type code ("struct" for
650 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
651 languages with this feature.
653 This is used for printing only, except by poorly designed C++ code.
654 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
655 One more legitimate use is that if TYPE_STUB is set, this is
656 the name to use to look for definitions in other files. */
658 const char *tag_name
;
660 /* * Every type is now associated with a particular objfile, and the
661 type is allocated on the objfile_obstack for that objfile. One
662 problem however, is that there are times when gdb allocates new
663 types while it is not in the process of reading symbols from a
664 particular objfile. Fortunately, these happen when the type
665 being created is a derived type of an existing type, such as in
666 lookup_pointer_type(). So we can just allocate the new type
667 using the same objfile as the existing type, but to do this we
668 need a backpointer to the objfile from the existing type. Yes
669 this is somewhat ugly, but without major overhaul of the internal
670 type system, it can't be avoided for now. */
672 union type_owner owner
;
674 /* * For a pointer type, describes the type of object pointed to.
675 - For an array type, describes the type of the elements.
676 - For a function or method type, describes the type of the return value.
677 - For a range type, describes the type of the full range.
678 - For a complex type, describes the type of each coordinate.
679 - For a special record or union type encoding a dynamic-sized type
680 in GNAT, a memoized pointer to a corresponding static version of
682 - Unused otherwise. */
684 struct type
*target_type
;
686 /* * For structure and union types, a description of each field.
687 For set and pascal array types, there is one "field",
688 whose type is the domain type of the set or array.
689 For range types, there are two "fields",
690 the minimum and maximum values (both inclusive).
691 For enum types, each possible value is described by one "field".
692 For a function or method type, a "field" for each parameter.
693 For C++ classes, there is one field for each base class (if it is
694 a derived class) plus one field for each class data member. Member
695 functions are recorded elsewhere.
697 Using a pointer to a separate array of fields
698 allows all types to have the same size, which is useful
699 because we can allocate the space for a type before
700 we know what to put in it. */
704 struct field
*fields
;
706 /* * Union member used for range types. */
708 struct range_bounds
*bounds
;
712 /* * Slot to point to additional language-specific fields of this
715 union type_specific type_specific
;
717 /* * Contains all dynamic type properties. */
718 struct dynamic_prop_list
*dyn_prop_list
;
721 /* * A ``struct type'' describes a particular instance of a type, with
722 some particular qualification. */
726 /* * Type that is a pointer to this type.
727 NULL if no such pointer-to type is known yet.
728 The debugger may add the address of such a type
729 if it has to construct one later. */
731 struct type
*pointer_type
;
733 /* * C++: also need a reference type. */
735 struct type
*reference_type
;
737 /* * A C++ rvalue reference type added in C++11. */
739 struct type
*rvalue_reference_type
;
741 /* * Variant chain. This points to a type that differs from this
742 one only in qualifiers and length. Currently, the possible
743 qualifiers are const, volatile, code-space, data-space, and
744 address class. The length may differ only when one of the
745 address class flags are set. The variants are linked in a
746 circular ring and share MAIN_TYPE. */
750 /* * Flags specific to this instance of the type, indicating where
753 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
754 binary or-ed with the target type, with a special case for
755 address class and space class. For example if this typedef does
756 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
757 instance flags are completely inherited from the target type. No
758 qualifiers can be cleared by the typedef. See also
762 /* * Length of storage for a value of this type. The value is the
763 expression in host bytes of what sizeof(type) would return. This
764 size includes padding. For example, an i386 extended-precision
765 floating point value really only occupies ten bytes, but most
766 ABI's declare its size to be 12 bytes, to preserve alignment.
767 A `struct type' representing such a floating-point type would
768 have a `length' value of 12, even though the last two bytes are
771 Since this field is expressed in host bytes, its value is appropriate
772 to pass to memcpy and such (it is assumed that GDB itself always runs
773 on an 8-bits addressable architecture). However, when using it for
774 target address arithmetic (e.g. adding it to a target address), the
775 type_length_units function should be used in order to get the length
776 expressed in target addressable memory units. */
780 /* * Core type, shared by a group of qualified types. */
782 struct main_type
*main_type
;
785 #define NULL_TYPE ((struct type *) 0)
790 /* * The overloaded name.
791 This is generally allocated in the objfile's obstack.
792 However stabsread.c sometimes uses malloc. */
796 /* * The number of methods with this name. */
800 /* * The list of methods. */
802 struct fn_field
*fn_fields
;
809 /* * If is_stub is clear, this is the mangled name which we can look
810 up to find the address of the method (FIXME: it would be cleaner
811 to have a pointer to the struct symbol here instead).
813 If is_stub is set, this is the portion of the mangled name which
814 specifies the arguments. For example, "ii", if there are two int
815 arguments, or "" if there are no arguments. See gdb_mangle_name
816 for the conversion from this format to the one used if is_stub is
819 const char *physname
;
821 /* * The function type for the method.
823 (This comment used to say "The return value of the method", but
824 that's wrong. The function type is expected here, i.e. something
825 with TYPE_CODE_METHOD, and *not* the return-value type). */
829 /* * For virtual functions. First baseclass that defines this
832 struct type
*fcontext
;
836 unsigned int is_const
:1;
837 unsigned int is_volatile
:1;
838 unsigned int is_private
:1;
839 unsigned int is_protected
:1;
840 unsigned int is_artificial
:1;
842 /* * A stub method only has some fields valid (but they are enough
843 to reconstruct the rest of the fields). */
845 unsigned int is_stub
:1;
847 /* * True if this function is a constructor, false otherwise. */
849 unsigned int is_constructor
: 1;
853 unsigned int dummy
:9;
855 /* * Index into that baseclass's virtual function table, minus 2;
856 else if static: VOFFSET_STATIC; else: 0. */
858 unsigned int voffset
:16;
860 #define VOFFSET_STATIC 1
866 /* * Unqualified name to be prefixed by owning class qualified
871 /* * Type this typedef named NAME represents. */
876 /* * C++ language-specific information for TYPE_CODE_STRUCT and
877 TYPE_CODE_UNION nodes. */
879 struct cplus_struct_type
881 /* * Number of base classes this type derives from. The
882 baseclasses are stored in the first N_BASECLASSES fields
883 (i.e. the `fields' field of the struct type). The only fields
884 of struct field that are used are: type, name, loc.bitpos. */
888 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
889 All access to this field must be through TYPE_VPTR_FIELDNO as one
890 thing it does is check whether the field has been initialized.
891 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
892 which for portability reasons doesn't initialize this field.
893 TYPE_VPTR_FIELDNO returns -1 for this case.
895 If -1, we were unable to find the virtual function table pointer in
896 initial symbol reading, and get_vptr_fieldno should be called to find
897 it if possible. get_vptr_fieldno will update this field if possible.
898 Otherwise the value is left at -1.
900 Unused if this type does not have virtual functions. */
904 /* * Number of methods with unique names. All overloaded methods
905 with the same name count only once. */
909 /* * Number of template arguments. */
911 unsigned short n_template_arguments
;
913 /* * One if this struct is a dynamic class, as defined by the
914 Itanium C++ ABI: if it requires a virtual table pointer,
915 because it or any of its base classes have one or more virtual
916 member functions or virtual base classes. Minus one if not
917 dynamic. Zero if not yet computed. */
921 /* * The base class which defined the virtual function table pointer. */
923 struct type
*vptr_basetype
;
925 /* * For derived classes, the number of base classes is given by
926 n_baseclasses and virtual_field_bits is a bit vector containing
927 one bit per base class. If the base class is virtual, the
928 corresponding bit will be set.
933 class C : public B, public virtual A {};
935 B is a baseclass of C; A is a virtual baseclass for C.
936 This is a C++ 2.0 language feature. */
938 B_TYPE
*virtual_field_bits
;
940 /* * For classes with private fields, the number of fields is
941 given by nfields and private_field_bits is a bit vector
942 containing one bit per field.
944 If the field is private, the corresponding bit will be set. */
946 B_TYPE
*private_field_bits
;
948 /* * For classes with protected fields, the number of fields is
949 given by nfields and protected_field_bits is a bit vector
950 containing one bit per field.
952 If the field is private, the corresponding bit will be set. */
954 B_TYPE
*protected_field_bits
;
956 /* * For classes with fields to be ignored, either this is
957 optimized out or this field has length 0. */
959 B_TYPE
*ignore_field_bits
;
961 /* * For classes, structures, and unions, a description of each
962 field, which consists of an overloaded name, followed by the
963 types of arguments that the method expects, and then the name
964 after it has been renamed to make it distinct.
966 fn_fieldlists points to an array of nfn_fields of these. */
968 struct fn_fieldlist
*fn_fieldlists
;
970 /* * typedefs defined inside this class. typedef_field points to
971 an array of typedef_field_count elements. */
973 struct typedef_field
*typedef_field
;
975 unsigned typedef_field_count
;
977 /* * The template arguments. This is an array with
978 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
981 struct symbol
**template_arguments
;
984 /* * Struct used to store conversion rankings. */
990 /* * When two conversions are of the same type and therefore have
991 the same rank, subrank is used to differentiate the two.
993 Eg: Two derived-class-pointer to base-class-pointer conversions
994 would both have base pointer conversion rank, but the
995 conversion with the shorter distance to the ancestor is
996 preferable. 'subrank' would be used to reflect that. */
1001 /* * Struct used for ranking a function for overload resolution. */
1003 struct badness_vector
1009 /* * GNAT Ada-specific information for various Ada types. */
1011 struct gnat_aux_type
1013 /* * Parallel type used to encode information about dynamic types
1014 used in Ada (such as variant records, variable-size array,
1016 struct type
* descriptive_type
;
1019 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1023 /* * The calling convention for targets supporting multiple ABIs.
1024 Right now this is only fetched from the Dwarf-2
1025 DW_AT_calling_convention attribute. The value is one of the
1026 DW_CC enum dwarf_calling_convention constants. */
1028 unsigned calling_convention
: 8;
1030 /* * Whether this function normally returns to its caller. It is
1031 set from the DW_AT_noreturn attribute if set on the
1032 DW_TAG_subprogram. */
1034 unsigned int is_noreturn
: 1;
1036 /* * Only those DW_TAG_call_site's in this function that have
1037 DW_AT_call_tail_call set are linked in this list. Function
1038 without its tail call list complete
1039 (DW_AT_call_all_tail_calls or its superset
1040 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1041 DW_TAG_call_site's exist in such function. */
1043 struct call_site
*tail_call_list
;
1045 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1046 contains the method. */
1048 struct type
*self_type
;
1051 /* struct call_site_parameter can be referenced in callees by several ways. */
1053 enum call_site_parameter_kind
1055 /* * Use field call_site_parameter.u.dwarf_reg. */
1056 CALL_SITE_PARAMETER_DWARF_REG
,
1058 /* * Use field call_site_parameter.u.fb_offset. */
1059 CALL_SITE_PARAMETER_FB_OFFSET
,
1061 /* * Use field call_site_parameter.u.param_offset. */
1062 CALL_SITE_PARAMETER_PARAM_OFFSET
1065 struct call_site_target
1067 union field_location loc
;
1069 /* * Discriminant for union field_location. */
1071 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
1074 union call_site_parameter_u
1076 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1077 as DWARF register number, for register passed
1082 /* * Offset from the callee's frame base, for stack passed
1083 parameters. This equals offset from the caller's stack
1086 CORE_ADDR fb_offset
;
1088 /* * Offset relative to the start of this PER_CU to
1089 DW_TAG_formal_parameter which is referenced by both
1090 caller and the callee. */
1092 cu_offset param_cu_off
;
1095 struct call_site_parameter
1097 ENUM_BITFIELD (call_site_parameter_kind
) kind
: 2;
1099 union call_site_parameter_u u
;
1101 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1103 const gdb_byte
*value
;
1106 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1107 It may be NULL if not provided by DWARF. */
1109 const gdb_byte
*data_value
;
1110 size_t data_value_size
;
1113 /* * A place where a function gets called from, represented by
1114 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1118 /* * Address of the first instruction after this call. It must be
1119 the first field as we overload core_addr_hash and core_addr_eq
1124 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1126 struct call_site
*tail_call_next
;
1128 /* * Describe DW_AT_call_target. Missing attribute uses
1129 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1131 struct call_site_target target
;
1133 /* * Size of the PARAMETER array. */
1135 unsigned parameter_count
;
1137 /* * CU of the function where the call is located. It gets used
1138 for DWARF blocks execution in the parameter array below. */
1140 struct dwarf2_per_cu_data
*per_cu
;
1142 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1144 struct call_site_parameter parameter
[1];
1147 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1148 static structure. */
1150 extern const struct cplus_struct_type cplus_struct_default
;
1152 extern void allocate_cplus_struct_type (struct type
*);
1154 #define INIT_CPLUS_SPECIFIC(type) \
1155 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1156 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1157 &cplus_struct_default)
1159 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1161 #define HAVE_CPLUS_STRUCT(type) \
1162 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1163 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1165 extern const struct gnat_aux_type gnat_aux_default
;
1167 extern void allocate_gnat_aux_type (struct type
*);
1169 #define INIT_GNAT_SPECIFIC(type) \
1170 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1171 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1172 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1173 /* * A macro that returns non-zero if the type-specific data should be
1174 read as "gnat-stuff". */
1175 #define HAVE_GNAT_AUX_INFO(type) \
1176 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1178 #define INIT_FUNC_SPECIFIC(type) \
1179 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1180 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1181 TYPE_ZALLOC (type, \
1182 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1184 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1185 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1186 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1187 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1188 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1189 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1190 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1191 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1192 #define TYPE_CHAIN(thistype) (thistype)->chain
1193 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1194 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1195 so you only have to call check_typedef once. Since allocate_value
1196 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1197 #define TYPE_LENGTH(thistype) (thistype)->length
1198 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1199 type, you need to do TYPE_CODE (check_type (this_type)). */
1200 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1201 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1202 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1204 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1205 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1206 #define TYPE_LOW_BOUND(range_type) \
1207 TYPE_RANGE_DATA(range_type)->low.data.const_val
1208 #define TYPE_HIGH_BOUND(range_type) \
1209 TYPE_RANGE_DATA(range_type)->high.data.const_val
1210 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1211 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1212 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1213 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1214 #define TYPE_HIGH_BOUND_KIND(range_type) \
1215 TYPE_RANGE_DATA(range_type)->high.kind
1216 #define TYPE_LOW_BOUND_KIND(range_type) \
1217 TYPE_RANGE_DATA(range_type)->low.kind
1219 /* Property accessors for the type data location. */
1220 #define TYPE_DATA_LOCATION(thistype) \
1221 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1222 #define TYPE_DATA_LOCATION_BATON(thistype) \
1223 TYPE_DATA_LOCATION (thistype)->data.baton
1224 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1225 TYPE_DATA_LOCATION (thistype)->data.const_val
1226 #define TYPE_DATA_LOCATION_KIND(thistype) \
1227 TYPE_DATA_LOCATION (thistype)->kind
1229 /* Property accessors for the type allocated/associated. */
1230 #define TYPE_ALLOCATED_PROP(thistype) \
1231 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1232 #define TYPE_ASSOCIATED_PROP(thistype) \
1233 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1235 /* Attribute accessors for dynamic properties. */
1236 #define TYPE_DYN_PROP_LIST(thistype) \
1237 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1238 #define TYPE_DYN_PROP_BATON(dynprop) \
1240 #define TYPE_DYN_PROP_ADDR(dynprop) \
1241 dynprop->data.const_val
1242 #define TYPE_DYN_PROP_KIND(dynprop) \
1246 /* Moto-specific stuff for FORTRAN arrays. */
1248 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1249 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1250 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1251 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1253 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1254 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1256 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1257 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1261 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1262 /* Do not call this, use TYPE_SELF_TYPE. */
1263 extern struct type
*internal_type_self_type (struct type
*);
1264 extern void set_type_self_type (struct type
*, struct type
*);
1266 extern int internal_type_vptr_fieldno (struct type
*);
1267 extern void set_type_vptr_fieldno (struct type
*, int);
1268 extern struct type
*internal_type_vptr_basetype (struct type
*);
1269 extern void set_type_vptr_basetype (struct type
*, struct type
*);
1270 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1271 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1273 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1274 #define TYPE_SPECIFIC_FIELD(thistype) \
1275 TYPE_MAIN_TYPE(thistype)->type_specific_field
1276 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1277 where we're trying to print an Ada array using the C language.
1278 In that case, there is no "cplus_stuff", but the C language assumes
1279 that there is. What we do, in that case, is pretend that there is
1280 an implicit one which is the default cplus stuff. */
1281 #define TYPE_CPLUS_SPECIFIC(thistype) \
1282 (!HAVE_CPLUS_STRUCT(thistype) \
1283 ? (struct cplus_struct_type*)&cplus_struct_default \
1284 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1285 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1286 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1287 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1288 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1289 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1290 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1291 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1292 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1293 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1294 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1295 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1296 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1297 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1298 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1300 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1301 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1302 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1304 #define FIELD_TYPE(thisfld) ((thisfld).type)
1305 #define FIELD_NAME(thisfld) ((thisfld).name)
1306 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1307 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1308 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1309 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1310 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1311 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1312 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1313 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1314 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1315 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1316 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1317 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1318 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1319 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1320 #define SET_FIELD_PHYSNAME(thisfld, name) \
1321 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1322 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1323 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1324 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1325 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1326 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1327 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1328 FIELD_DWARF_BLOCK (thisfld) = (addr))
1329 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1330 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1332 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1333 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1334 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1335 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1336 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1337 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1338 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1339 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1340 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1341 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1342 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1343 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1345 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1346 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1347 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1348 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1349 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1350 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1351 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1352 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1353 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1354 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1355 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1356 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1357 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1358 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1359 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1360 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1361 #define TYPE_FIELD_PRIVATE(thistype, n) \
1362 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1363 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1364 #define TYPE_FIELD_PROTECTED(thistype, n) \
1365 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1366 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1367 #define TYPE_FIELD_IGNORE(thistype, n) \
1368 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1369 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1370 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1371 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1372 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1374 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1375 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1376 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1377 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1378 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1380 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1381 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1382 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1383 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1384 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1385 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1387 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1388 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1389 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1390 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1391 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1392 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1393 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1394 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1395 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1396 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1397 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1398 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1399 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1400 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1401 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1403 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1404 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1405 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1406 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1407 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1408 TYPE_TYPEDEF_FIELD (thistype, n).name
1409 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1410 TYPE_TYPEDEF_FIELD (thistype, n).type
1411 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1412 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1414 #define TYPE_IS_OPAQUE(thistype) \
1415 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1416 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1417 && (TYPE_NFIELDS (thistype) == 0) \
1418 && (!HAVE_CPLUS_STRUCT (thistype) \
1419 || TYPE_NFN_FIELDS (thistype) == 0) \
1420 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1422 /* * A helper macro that returns the name of a type or "unnamed type"
1423 if the type has no name. */
1425 #define TYPE_SAFE_NAME(type) \
1426 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1428 /* * A helper macro that returns the name of an error type. If the
1429 type has a name, it is used; otherwise, a default is used. */
1431 #define TYPE_ERROR_NAME(type) \
1432 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1436 /* Integral types. */
1438 /* Implicit size/sign (based on the architecture's ABI). */
1439 struct type
*builtin_void
;
1440 struct type
*builtin_char
;
1441 struct type
*builtin_short
;
1442 struct type
*builtin_int
;
1443 struct type
*builtin_long
;
1444 struct type
*builtin_signed_char
;
1445 struct type
*builtin_unsigned_char
;
1446 struct type
*builtin_unsigned_short
;
1447 struct type
*builtin_unsigned_int
;
1448 struct type
*builtin_unsigned_long
;
1449 struct type
*builtin_float
;
1450 struct type
*builtin_double
;
1451 struct type
*builtin_long_double
;
1452 struct type
*builtin_complex
;
1453 struct type
*builtin_double_complex
;
1454 struct type
*builtin_string
;
1455 struct type
*builtin_bool
;
1456 struct type
*builtin_long_long
;
1457 struct type
*builtin_unsigned_long_long
;
1458 struct type
*builtin_decfloat
;
1459 struct type
*builtin_decdouble
;
1460 struct type
*builtin_declong
;
1462 /* "True" character types.
1463 We use these for the '/c' print format, because c_char is just a
1464 one-byte integral type, which languages less laid back than C
1465 will print as ... well, a one-byte integral type. */
1466 struct type
*builtin_true_char
;
1467 struct type
*builtin_true_unsigned_char
;
1469 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1470 is for when an architecture needs to describe a register that has
1472 struct type
*builtin_int0
;
1473 struct type
*builtin_int8
;
1474 struct type
*builtin_uint8
;
1475 struct type
*builtin_int16
;
1476 struct type
*builtin_uint16
;
1477 struct type
*builtin_int32
;
1478 struct type
*builtin_uint32
;
1479 struct type
*builtin_int64
;
1480 struct type
*builtin_uint64
;
1481 struct type
*builtin_int128
;
1482 struct type
*builtin_uint128
;
1484 /* Wide character types. */
1485 struct type
*builtin_char16
;
1486 struct type
*builtin_char32
;
1487 struct type
*builtin_wchar
;
1489 /* Pointer types. */
1491 /* * `pointer to data' type. Some target platforms use an implicitly
1492 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1493 struct type
*builtin_data_ptr
;
1495 /* * `pointer to function (returning void)' type. Harvard
1496 architectures mean that ABI function and code pointers are not
1497 interconvertible. Similarly, since ANSI, C standards have
1498 explicitly said that pointers to functions and pointers to data
1499 are not interconvertible --- that is, you can't cast a function
1500 pointer to void * and back, and expect to get the same value.
1501 However, all function pointer types are interconvertible, so void
1502 (*) () can server as a generic function pointer. */
1504 struct type
*builtin_func_ptr
;
1506 /* * `function returning pointer to function (returning void)' type.
1507 The final void return type is not significant for it. */
1509 struct type
*builtin_func_func
;
1511 /* Special-purpose types. */
1513 /* * This type is used to represent a GDB internal function. */
1515 struct type
*internal_fn
;
1517 /* * This type is used to represent an xmethod. */
1518 struct type
*xmethod
;
1521 /* * Return the type table for the specified architecture. */
1523 extern const struct builtin_type
*builtin_type (struct gdbarch
*gdbarch
);
1525 /* * Per-objfile types used by symbol readers. */
1529 /* Basic types based on the objfile architecture. */
1530 struct type
*builtin_void
;
1531 struct type
*builtin_char
;
1532 struct type
*builtin_short
;
1533 struct type
*builtin_int
;
1534 struct type
*builtin_long
;
1535 struct type
*builtin_long_long
;
1536 struct type
*builtin_signed_char
;
1537 struct type
*builtin_unsigned_char
;
1538 struct type
*builtin_unsigned_short
;
1539 struct type
*builtin_unsigned_int
;
1540 struct type
*builtin_unsigned_long
;
1541 struct type
*builtin_unsigned_long_long
;
1542 struct type
*builtin_float
;
1543 struct type
*builtin_double
;
1544 struct type
*builtin_long_double
;
1546 /* * This type is used to represent symbol addresses. */
1547 struct type
*builtin_core_addr
;
1549 /* * This type represents a type that was unrecognized in symbol
1551 struct type
*builtin_error
;
1553 /* * Types used for symbols with no debug information. */
1554 struct type
*nodebug_text_symbol
;
1555 struct type
*nodebug_text_gnu_ifunc_symbol
;
1556 struct type
*nodebug_got_plt_symbol
;
1557 struct type
*nodebug_data_symbol
;
1558 struct type
*nodebug_unknown_symbol
;
1559 struct type
*nodebug_tls_symbol
;
1562 /* * Return the type table for the specified objfile. */
1564 extern const struct objfile_type
*objfile_type (struct objfile
*objfile
);
1566 /* Explicit floating-point formats. See "floatformat.h". */
1567 extern const struct floatformat
*floatformats_ieee_half
[BFD_ENDIAN_UNKNOWN
];
1568 extern const struct floatformat
*floatformats_ieee_single
[BFD_ENDIAN_UNKNOWN
];
1569 extern const struct floatformat
*floatformats_ieee_double
[BFD_ENDIAN_UNKNOWN
];
1570 extern const struct floatformat
*floatformats_ieee_double_littlebyte_bigword
[BFD_ENDIAN_UNKNOWN
];
1571 extern const struct floatformat
*floatformats_i387_ext
[BFD_ENDIAN_UNKNOWN
];
1572 extern const struct floatformat
*floatformats_m68881_ext
[BFD_ENDIAN_UNKNOWN
];
1573 extern const struct floatformat
*floatformats_arm_ext
[BFD_ENDIAN_UNKNOWN
];
1574 extern const struct floatformat
*floatformats_ia64_spill
[BFD_ENDIAN_UNKNOWN
];
1575 extern const struct floatformat
*floatformats_ia64_quad
[BFD_ENDIAN_UNKNOWN
];
1576 extern const struct floatformat
*floatformats_vax_f
[BFD_ENDIAN_UNKNOWN
];
1577 extern const struct floatformat
*floatformats_vax_d
[BFD_ENDIAN_UNKNOWN
];
1578 extern const struct floatformat
*floatformats_ibm_long_double
[BFD_ENDIAN_UNKNOWN
];
1581 /* * Allocate space for storing data associated with a particular
1582 type. We ensure that the space is allocated using the same
1583 mechanism that was used to allocate the space for the type
1584 structure itself. I.e. if the type is on an objfile's
1585 objfile_obstack, then the space for data associated with that type
1586 will also be allocated on the objfile_obstack. If the type is not
1587 associated with any particular objfile (such as builtin types),
1588 then the data space will be allocated with xmalloc, the same as for
1589 the type structure. */
1591 #define TYPE_ALLOC(t,size) \
1592 (TYPE_OBJFILE_OWNED (t) \
1593 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1596 #define TYPE_ZALLOC(t,size) \
1597 (TYPE_OBJFILE_OWNED (t) \
1598 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1602 /* Use alloc_type to allocate a type owned by an objfile. Use
1603 alloc_type_arch to allocate a type owned by an architecture. Use
1604 alloc_type_copy to allocate a type with the same owner as a
1605 pre-existing template type, no matter whether objfile or
1607 extern struct type
*alloc_type (struct objfile
*);
1608 extern struct type
*alloc_type_arch (struct gdbarch
*);
1609 extern struct type
*alloc_type_copy (const struct type
*);
1611 /* * Return the type's architecture. For types owned by an
1612 architecture, that architecture is returned. For types owned by an
1613 objfile, that objfile's architecture is returned. */
1615 extern struct gdbarch
*get_type_arch (const struct type
*);
1617 /* * This returns the target type (or NULL) of TYPE, also skipping
1620 extern struct type
*get_target_type (struct type
*type
);
1622 /* Return the equivalent of TYPE_LENGTH, but in number of target
1623 addressable memory units of the associated gdbarch instead of bytes. */
1625 extern unsigned int type_length_units (struct type
*type
);
1627 /* * Helper function to construct objfile-owned types. */
1629 extern struct type
*init_type (struct objfile
*, enum type_code
, int,
1631 extern struct type
*init_integer_type (struct objfile
*, int, int,
1633 extern struct type
*init_character_type (struct objfile
*, int, int,
1635 extern struct type
*init_boolean_type (struct objfile
*, int, int,
1637 extern struct type
*init_float_type (struct objfile
*, int, const char *,
1638 const struct floatformat
**);
1639 extern struct type
*init_decfloat_type (struct objfile
*, int, const char *);
1640 extern struct type
*init_complex_type (struct objfile
*, const char *,
1642 extern struct type
*init_pointer_type (struct objfile
*, int, const char *,
1645 /* Helper functions to construct architecture-owned types. */
1646 extern struct type
*arch_type (struct gdbarch
*, enum type_code
, int,
1648 extern struct type
*arch_integer_type (struct gdbarch
*, int, int,
1650 extern struct type
*arch_character_type (struct gdbarch
*, int, int,
1652 extern struct type
*arch_boolean_type (struct gdbarch
*, int, int,
1654 extern struct type
*arch_float_type (struct gdbarch
*, int, const char *,
1655 const struct floatformat
**);
1656 extern struct type
*arch_decfloat_type (struct gdbarch
*, int, const char *);
1657 extern struct type
*arch_complex_type (struct gdbarch
*, const char *,
1659 extern struct type
*arch_pointer_type (struct gdbarch
*, int, const char *,
1662 /* Helper functions to construct a struct or record type. An
1663 initially empty type is created using arch_composite_type().
1664 Fields are then added using append_composite_type_field*(). A union
1665 type has its size set to the largest field. A struct type has each
1666 field packed against the previous. */
1668 extern struct type
*arch_composite_type (struct gdbarch
*gdbarch
,
1669 const char *name
, enum type_code code
);
1670 extern void append_composite_type_field (struct type
*t
, const char *name
,
1671 struct type
*field
);
1672 extern void append_composite_type_field_aligned (struct type
*t
,
1676 struct field
*append_composite_type_field_raw (struct type
*t
, const char *name
,
1677 struct type
*field
);
1679 /* Helper functions to construct a bit flags type. An initially empty
1680 type is created using arch_flag_type(). Flags are then added using
1681 append_flag_type_field() and append_flag_type_flag(). */
1682 extern struct type
*arch_flags_type (struct gdbarch
*gdbarch
,
1683 const char *name
, int length
);
1684 extern void append_flags_type_field (struct type
*type
,
1685 int start_bitpos
, int nr_bits
,
1686 struct type
*field_type
, const char *name
);
1687 extern void append_flags_type_flag (struct type
*type
, int bitpos
,
1690 extern void make_vector_type (struct type
*array_type
);
1691 extern struct type
*init_vector_type (struct type
*elt_type
, int n
);
1693 extern struct type
*lookup_reference_type (struct type
*, enum type_code
);
1694 extern struct type
*lookup_lvalue_reference_type (struct type
*);
1695 extern struct type
*lookup_rvalue_reference_type (struct type
*);
1698 extern struct type
*make_reference_type (struct type
*, struct type
**,
1701 extern struct type
*make_cv_type (int, int, struct type
*, struct type
**);
1703 extern struct type
*make_restrict_type (struct type
*);
1705 extern struct type
*make_unqualified_type (struct type
*);
1707 extern struct type
*make_atomic_type (struct type
*);
1709 extern void replace_type (struct type
*, struct type
*);
1711 extern int address_space_name_to_int (struct gdbarch
*, char *);
1713 extern const char *address_space_int_to_name (struct gdbarch
*, int);
1715 extern struct type
*make_type_with_address_space (struct type
*type
,
1716 int space_identifier
);
1718 extern struct type
*lookup_memberptr_type (struct type
*, struct type
*);
1720 extern struct type
*lookup_methodptr_type (struct type
*);
1722 extern void smash_to_method_type (struct type
*type
, struct type
*self_type
,
1723 struct type
*to_type
, struct field
*args
,
1724 int nargs
, int varargs
);
1726 extern void smash_to_memberptr_type (struct type
*, struct type
*,
1729 extern void smash_to_methodptr_type (struct type
*, struct type
*);
1731 extern struct type
*allocate_stub_method (struct type
*);
1733 extern const char *type_name_no_tag (const struct type
*);
1735 extern const char *type_name_no_tag_or_error (struct type
*type
);
1737 extern struct type
*lookup_struct_elt_type (struct type
*, const char *, int);
1739 extern struct type
*make_pointer_type (struct type
*, struct type
**);
1741 extern struct type
*lookup_pointer_type (struct type
*);
1743 extern struct type
*make_function_type (struct type
*, struct type
**);
1745 extern struct type
*lookup_function_type (struct type
*);
1747 extern struct type
*lookup_function_type_with_arguments (struct type
*,
1751 extern struct type
*create_static_range_type (struct type
*, struct type
*,
1755 extern struct type
*create_array_type_with_stride
1756 (struct type
*, struct type
*, struct type
*, unsigned int);
1758 extern struct type
*create_range_type (struct type
*, struct type
*,
1759 const struct dynamic_prop
*,
1760 const struct dynamic_prop
*);
1762 extern struct type
*create_array_type (struct type
*, struct type
*,
1765 extern struct type
*lookup_array_range_type (struct type
*, LONGEST
, LONGEST
);
1767 extern struct type
*create_string_type (struct type
*, struct type
*,
1769 extern struct type
*lookup_string_range_type (struct type
*, LONGEST
, LONGEST
);
1771 extern struct type
*create_set_type (struct type
*, struct type
*);
1773 extern struct type
*lookup_unsigned_typename (const struct language_defn
*,
1774 struct gdbarch
*, const char *);
1776 extern struct type
*lookup_signed_typename (const struct language_defn
*,
1777 struct gdbarch
*, const char *);
1779 extern void get_unsigned_type_max (struct type
*, ULONGEST
*);
1781 extern void get_signed_type_minmax (struct type
*, LONGEST
*, LONGEST
*);
1783 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1784 ADDR specifies the location of the variable the type is bound to.
1785 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1786 static properties is returned. */
1787 extern struct type
*resolve_dynamic_type (struct type
*type
,
1788 const gdb_byte
*valaddr
,
1791 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1792 extern int is_dynamic_type (struct type
*type
);
1794 /* * Return the dynamic property of the requested KIND from TYPE's
1795 list of dynamic properties. */
1796 extern struct dynamic_prop
*get_dyn_prop
1797 (enum dynamic_prop_node_kind kind
, const struct type
*type
);
1799 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1800 property to the given TYPE.
1802 This function assumes that TYPE is objfile-owned, and that OBJFILE
1803 is the TYPE's objfile. */
1804 extern void add_dyn_prop
1805 (enum dynamic_prop_node_kind kind
, struct dynamic_prop prop
,
1806 struct type
*type
, struct objfile
*objfile
);
1808 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind
,
1811 extern struct type
*check_typedef (struct type
*);
1813 extern void check_stub_method_group (struct type
*, int);
1815 extern char *gdb_mangle_name (struct type
*, int, int);
1817 extern struct type
*lookup_typename (const struct language_defn
*,
1818 struct gdbarch
*, const char *,
1819 const struct block
*, int);
1821 extern struct type
*lookup_template_type (char *, struct type
*,
1822 const struct block
*);
1824 extern int get_vptr_fieldno (struct type
*, struct type
**);
1826 extern int get_discrete_bounds (struct type
*, LONGEST
*, LONGEST
*);
1828 extern int get_array_bounds (struct type
*type
, LONGEST
*low_bound
,
1829 LONGEST
*high_bound
);
1831 extern int discrete_position (struct type
*type
, LONGEST val
, LONGEST
*pos
);
1833 extern int class_types_same_p (const struct type
*, const struct type
*);
1835 extern int is_ancestor (struct type
*, struct type
*);
1837 extern int is_public_ancestor (struct type
*, struct type
*);
1839 extern int is_unique_ancestor (struct type
*, struct value
*);
1841 /* Overload resolution */
1843 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1845 /* * Badness if parameter list length doesn't match arg list length. */
1846 extern const struct rank LENGTH_MISMATCH_BADNESS
;
1848 /* * Dummy badness value for nonexistent parameter positions. */
1849 extern const struct rank TOO_FEW_PARAMS_BADNESS
;
1850 /* * Badness if no conversion among types. */
1851 extern const struct rank INCOMPATIBLE_TYPE_BADNESS
;
1853 /* * Badness of an exact match. */
1854 extern const struct rank EXACT_MATCH_BADNESS
;
1856 /* * Badness of integral promotion. */
1857 extern const struct rank INTEGER_PROMOTION_BADNESS
;
1858 /* * Badness of floating promotion. */
1859 extern const struct rank FLOAT_PROMOTION_BADNESS
;
1860 /* * Badness of converting a derived class pointer
1861 to a base class pointer. */
1862 extern const struct rank BASE_PTR_CONVERSION_BADNESS
;
1863 /* * Badness of integral conversion. */
1864 extern const struct rank INTEGER_CONVERSION_BADNESS
;
1865 /* * Badness of floating conversion. */
1866 extern const struct rank FLOAT_CONVERSION_BADNESS
;
1867 /* * Badness of integer<->floating conversions. */
1868 extern const struct rank INT_FLOAT_CONVERSION_BADNESS
;
1869 /* * Badness of conversion of pointer to void pointer. */
1870 extern const struct rank VOID_PTR_CONVERSION_BADNESS
;
1871 /* * Badness of conversion to boolean. */
1872 extern const struct rank BOOL_CONVERSION_BADNESS
;
1873 /* * Badness of converting derived to base class. */
1874 extern const struct rank BASE_CONVERSION_BADNESS
;
1875 /* * Badness of converting from non-reference to reference. Subrank
1876 is the type of reference conversion being done. */
1877 extern const struct rank REFERENCE_CONVERSION_BADNESS
;
1878 /* * Conversion to rvalue reference. */
1879 #define REFERENCE_CONVERSION_RVALUE 1
1880 /* * Conversion to const lvalue reference. */
1881 #define REFERENCE_CONVERSION_CONST_LVALUE 2
1883 /* * Badness of converting integer 0 to NULL pointer. */
1884 extern const struct rank NULL_POINTER_CONVERSION
;
1885 /* * Badness of cv-conversion. Subrank is a flag describing the conversions
1887 extern const struct rank CV_CONVERSION_BADNESS
;
1888 #define CV_CONVERSION_CONST 1
1889 #define CV_CONVERSION_VOLATILE 2
1891 /* Non-standard conversions allowed by the debugger */
1893 /* * Converting a pointer to an int is usually OK. */
1894 extern const struct rank NS_POINTER_CONVERSION_BADNESS
;
1896 /* * Badness of converting a (non-zero) integer constant
1898 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS
;
1900 extern struct rank
sum_ranks (struct rank a
, struct rank b
);
1901 extern int compare_ranks (struct rank a
, struct rank b
);
1903 extern int compare_badness (struct badness_vector
*, struct badness_vector
*);
1905 extern struct badness_vector
*rank_function (struct type
**, int,
1906 struct value
**, int);
1908 extern struct rank
rank_one_type (struct type
*, struct type
*,
1911 extern void recursive_dump_type (struct type
*, int);
1913 extern int field_is_static (struct field
*);
1917 extern void print_scalar_formatted (const gdb_byte
*, struct type
*,
1918 const struct value_print_options
*,
1919 int, struct ui_file
*);
1921 extern int can_dereference (struct type
*);
1923 extern int is_integral_type (struct type
*);
1925 extern int is_scalar_type (struct type
*type
);
1927 extern int is_scalar_type_recursive (struct type
*);
1929 extern int class_or_union_p (const struct type
*);
1931 extern void maintenance_print_type (char *, int);
1933 extern htab_t
create_copied_types_hash (struct objfile
*objfile
);
1935 extern struct type
*copy_type_recursive (struct objfile
*objfile
,
1937 htab_t copied_types
);
1939 extern struct type
*copy_type (const struct type
*type
);
1941 extern int types_equal (struct type
*, struct type
*);
1943 extern int types_deeply_equal (struct type
*, struct type
*);
1945 extern int type_not_allocated (const struct type
*type
);
1947 extern int type_not_associated (const struct type
*type
);
1949 #endif /* GDBTYPES_H */