2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2018 Free Software Foundation, Inc.
6 Contributed by Cygnus Support, using pieces from other GDB modules.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #if !defined (GDBTYPES_H)
26 /* * \page gdbtypes GDB Types
28 GDB represents all the different kinds of types in programming
29 languages using a common representation defined in gdbtypes.h.
31 The main data structure is main_type; it consists of a code (such
32 as #TYPE_CODE_ENUM for enumeration types), a number of
33 generally-useful fields such as the printable name, and finally a
34 field main_type::type_specific that is a union of info specific to
35 particular languages or other special cases (such as calling
38 The available type codes are defined in enum #type_code. The enum
39 includes codes both for types that are common across a variety
40 of languages, and for types that are language-specific.
42 Most accesses to type fields go through macros such as
43 #TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are
44 written such that they can be used as both rvalues and lvalues.
48 #include "common/offset-type.h"
49 #include "common/enum-flags.h"
51 /* Forward declarations for prototypes. */
54 struct value_print_options
;
57 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
58 are already DWARF-specific. */
60 /* * Offset relative to the start of its containing CU (compilation
62 DEFINE_OFFSET_TYPE (cu_offset
, unsigned int);
64 /* * Offset relative to the start of its .debug_info or .debug_types
66 DEFINE_OFFSET_TYPE (sect_offset
, unsigned int);
68 /* Some macros for char-based bitfields. */
70 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
71 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
72 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
73 #define B_TYPE unsigned char
74 #define B_BYTES(x) ( 1 + ((x)>>3) )
75 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
77 /* * Different kinds of data types are distinguished by the `code'
82 TYPE_CODE_BITSTRING
= -1, /**< Deprecated */
83 TYPE_CODE_UNDEF
= 0, /**< Not used; catches errors */
84 TYPE_CODE_PTR
, /**< Pointer type */
86 /* * Array type with lower & upper bounds.
88 Regardless of the language, GDB represents multidimensional
89 array types the way C does: as arrays of arrays. So an
90 instance of a GDB array type T can always be seen as a series
91 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
94 Row-major languages like C lay out multi-dimensional arrays so
95 that incrementing the rightmost index in a subscripting
96 expression results in the smallest change in the address of the
97 element referred to. Column-major languages like Fortran lay
98 them out so that incrementing the leftmost index results in the
101 This means that, in column-major languages, working our way
102 from type to target type corresponds to working through indices
103 from right to left, not left to right. */
106 TYPE_CODE_STRUCT
, /**< C struct or Pascal record */
107 TYPE_CODE_UNION
, /**< C union or Pascal variant part */
108 TYPE_CODE_ENUM
, /**< Enumeration type */
109 TYPE_CODE_FLAGS
, /**< Bit flags type */
110 TYPE_CODE_FUNC
, /**< Function type */
111 TYPE_CODE_INT
, /**< Integer type */
113 /* * Floating type. This is *NOT* a complex type. Beware, there
114 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
118 /* * Void type. The length field specifies the length (probably
119 always one) which is used in pointer arithmetic involving
120 pointers to this type, but actually dereferencing such a
121 pointer is invalid; a void type has no length and no actual
122 representation in memory or registers. A pointer to a void
123 type is a generic pointer. */
126 TYPE_CODE_SET
, /**< Pascal sets */
127 TYPE_CODE_RANGE
, /**< Range (integers within spec'd bounds). */
129 /* * A string type which is like an array of character but prints
130 differently. It does not contain a length field as Pascal
131 strings (for many Pascals, anyway) do; if we want to deal with
132 such strings, we should use a new type code. */
135 /* * Unknown type. The length field is valid if we were able to
136 deduce that much about the type, or 0 if we don't even know
141 TYPE_CODE_METHOD
, /**< Method type */
143 /* * Pointer-to-member-function type. This describes how to access a
144 particular member function of a class (possibly a virtual
145 member function). The representation may vary between different
149 /* * Pointer-to-member type. This is the offset within a class to
150 some particular data member. The only currently supported
151 representation uses an unbiased offset, with -1 representing
152 NULL; this is used by the Itanium C++ ABI (used by GCC on all
156 TYPE_CODE_REF
, /**< C++ Reference types */
158 TYPE_CODE_RVALUE_REF
, /**< C++ rvalue reference types */
160 TYPE_CODE_CHAR
, /**< *real* character type */
162 /* * Boolean type. 0 is false, 1 is true, and other values are
163 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
167 TYPE_CODE_COMPLEX
, /**< Complex float */
171 TYPE_CODE_NAMESPACE
, /**< C++ namespace. */
173 TYPE_CODE_DECFLOAT
, /**< Decimal floating point. */
175 TYPE_CODE_MODULE
, /**< Fortran module. */
177 /* * Internal function type. */
178 TYPE_CODE_INTERNAL_FUNCTION
,
180 /* * Methods implemented in extension languages. */
184 /* * Some bits for the type's instance_flags word. See the macros
185 below for documentation on each bit. */
187 enum type_instance_flag_value
189 TYPE_INSTANCE_FLAG_CONST
= (1 << 0),
190 TYPE_INSTANCE_FLAG_VOLATILE
= (1 << 1),
191 TYPE_INSTANCE_FLAG_CODE_SPACE
= (1 << 2),
192 TYPE_INSTANCE_FLAG_DATA_SPACE
= (1 << 3),
193 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1
= (1 << 4),
194 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2
= (1 << 5),
195 TYPE_INSTANCE_FLAG_NOTTEXT
= (1 << 6),
196 TYPE_INSTANCE_FLAG_RESTRICT
= (1 << 7),
197 TYPE_INSTANCE_FLAG_ATOMIC
= (1 << 8)
200 DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value
, type_instance_flags
);
202 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
203 the type is signed (unless TYPE_NOSIGN (below) is set). */
205 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
207 /* * No sign for this type. In C++, "char", "signed char", and
208 "unsigned char" are distinct types; so we need an extra flag to
209 indicate the absence of a sign! */
211 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
213 /* * This appears in a type's flags word if it is a stub type (e.g.,
214 if someone referenced a type that wasn't defined in a source file
215 via (struct sir_not_appearing_in_this_film *)). */
217 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
219 /* * The target type of this type is a stub type, and this type needs
220 to be updated if it gets un-stubbed in check_typedef. Used for
221 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
222 based on the TYPE_LENGTH of the target type. Also, set for
223 TYPE_CODE_TYPEDEF. */
225 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
227 /* * This is a function type which appears to have a prototype. We
228 need this for function calls in order to tell us if it's necessary
229 to coerce the args, or to just do the standard conversions. This
230 is used with a short field. */
232 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
234 /* * This flag is used to indicate that processing for this type
237 (Mostly intended for HP platforms, where class methods, for
238 instance, can be encountered before their classes in the debug
239 info; the incomplete type has to be marked so that the class and
240 the method can be assigned correct types.) */
242 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
244 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
247 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
249 /* * Identify a vector type. Gcc is handling this by adding an extra
250 attribute to the array type. We slurp that in as a new flag of a
251 type. This is used only in dwarf2read.c. */
252 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
254 /* * The debugging formats (especially STABS) do not contain enough
255 information to represent all Ada types---especially those whose
256 size depends on dynamic quantities. Therefore, the GNAT Ada
257 compiler includes extra information in the form of additional type
258 definitions connected by naming conventions. This flag indicates
259 that the type is an ordinary (unencoded) GDB type that has been
260 created from the necessary run-time information, and does not need
261 further interpretation. Optionally marks ordinary, fixed-size GDB
264 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
266 /* * This debug target supports TYPE_STUB(t). In the unsupported case
267 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
268 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
269 guessed the TYPE_STUB(t) value (see dwarfread.c). */
271 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
273 /* * Not textual. By default, GDB treats all single byte integers as
274 characters (or elements of strings) unless this flag is set. */
276 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
278 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
279 address is returned by this function call. TYPE_TARGET_TYPE
280 determines the final returned function type to be presented to
283 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
285 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
286 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
287 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
289 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
290 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
291 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
293 /* * True if this type was declared using the "class" keyword. This is
294 only valid for C++ structure and enum types. If false, a structure
295 was declared as a "struct"; if true it was declared "class". For
296 enum types, this is true when "enum class" or "enum struct" was
297 used to declare the type.. */
299 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
301 /* * True if this type is a "flag" enum. A flag enum is one where all
302 the values are pairwise disjoint when "and"ed together. This
303 affects how enum values are printed. */
305 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
307 /* * Constant type. If this is set, the corresponding type has a
310 #define TYPE_CONST(t) ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) != 0)
312 /* * Volatile type. If this is set, the corresponding type has a
313 volatile modifier. */
315 #define TYPE_VOLATILE(t) \
316 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
318 /* * Restrict type. If this is set, the corresponding type has a
319 restrict modifier. */
321 #define TYPE_RESTRICT(t) \
322 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
324 /* * Atomic type. If this is set, the corresponding type has an
327 #define TYPE_ATOMIC(t) \
328 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
330 /* * True if this type represents either an lvalue or lvalue reference type. */
332 #define TYPE_IS_REFERENCE(t) \
333 (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
335 /* * Instruction-space delimited type. This is for Harvard architectures
336 which have separate instruction and data address spaces (and perhaps
339 GDB usually defines a flat address space that is a superset of the
340 architecture's two (or more) address spaces, but this is an extension
341 of the architecture's model.
343 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
344 resides in instruction memory, even if its address (in the extended
345 flat address space) does not reflect this.
347 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
348 corresponding type resides in the data memory space, even if
349 this is not indicated by its (flat address space) address.
351 If neither flag is set, the default space for functions / methods
352 is instruction space, and for data objects is data memory. */
354 #define TYPE_CODE_SPACE(t) \
355 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
357 #define TYPE_DATA_SPACE(t) \
358 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
360 /* * Address class flags. Some environments provide for pointers
361 whose size is different from that of a normal pointer or address
362 types where the bits are interpreted differently than normal
363 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
364 target specific ways to represent these different types of address
367 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
368 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
369 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
370 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
371 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
372 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
373 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
374 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
376 enum dynamic_prop_kind
378 PROP_UNDEFINED
, /* Not defined. */
379 PROP_CONST
, /* Constant. */
380 PROP_ADDR_OFFSET
, /* Address offset. */
381 PROP_LOCEXPR
, /* Location expression. */
382 PROP_LOCLIST
/* Location list. */
385 union dynamic_prop_data
387 /* Storage for constant property. */
391 /* Storage for dynamic property. */
396 /* * Used to store a dynamic property. */
400 /* Determine which field of the union dynamic_prop.data is used. */
401 enum dynamic_prop_kind kind
;
403 /* Storage for dynamic or static value. */
404 union dynamic_prop_data data
;
407 /* Compare two dynamic_prop objects for equality. dynamic_prop
408 instances are equal iff they have the same type and storage. */
409 extern bool operator== (const dynamic_prop
&l
, const dynamic_prop
&r
);
411 /* Compare two dynamic_prop objects for inequality. */
412 static inline bool operator!= (const dynamic_prop
&l
, const dynamic_prop
&r
)
417 /* * Define a type's dynamic property node kind. */
418 enum dynamic_prop_node_kind
420 /* A property providing a type's data location.
421 Evaluating this field yields to the location of an object's data. */
422 DYN_PROP_DATA_LOCATION
,
424 /* A property representing DW_AT_allocated. The presence of this attribute
425 indicates that the object of the type can be allocated/deallocated. */
428 /* A property representing DW_AT_allocated. The presence of this attribute
429 indicated that the object of the type can be associated. */
432 /* A property providing an array's byte stride. */
433 DYN_PROP_BYTE_STRIDE
,
436 /* * List for dynamic type attributes. */
437 struct dynamic_prop_list
439 /* The kind of dynamic prop in this node. */
440 enum dynamic_prop_node_kind prop_kind
;
442 /* The dynamic property itself. */
443 struct dynamic_prop prop
;
445 /* A pointer to the next dynamic property. */
446 struct dynamic_prop_list
*next
;
449 /* * Determine which field of the union main_type.fields[x].loc is
454 FIELD_LOC_KIND_BITPOS
, /**< bitpos */
455 FIELD_LOC_KIND_ENUMVAL
, /**< enumval */
456 FIELD_LOC_KIND_PHYSADDR
, /**< physaddr */
457 FIELD_LOC_KIND_PHYSNAME
, /**< physname */
458 FIELD_LOC_KIND_DWARF_BLOCK
/**< dwarf_block */
461 /* * A discriminant to determine which field in the
462 main_type.type_specific union is being used, if any.
464 For types such as TYPE_CODE_FLT, the use of this
465 discriminant is really redundant, as we know from the type code
466 which field is going to be used. As such, it would be possible to
467 reduce the size of this enum in order to save a bit or two for
468 other fields of struct main_type. But, since we still have extra
469 room , and for the sake of clarity and consistency, we treat all fields
470 of the union the same way. */
472 enum type_specific_kind
475 TYPE_SPECIFIC_CPLUS_STUFF
,
476 TYPE_SPECIFIC_GNAT_STUFF
,
477 TYPE_SPECIFIC_FLOATFORMAT
,
478 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
480 TYPE_SPECIFIC_SELF_TYPE
485 struct objfile
*objfile
;
486 struct gdbarch
*gdbarch
;
491 /* * Position of this field, counting in bits from start of
492 containing structure. For gdbarch_bits_big_endian=1
493 targets, it is the bit offset to the MSB. For
494 gdbarch_bits_big_endian=0 targets, it is the bit offset to
502 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
503 physaddr is the location (in the target) of the static
504 field. Otherwise, physname is the mangled label of the
508 const char *physname
;
510 /* * The field location can be computed by evaluating the
511 following DWARF block. Its DATA is allocated on
512 objfile_obstack - no CU load is needed to access it. */
514 struct dwarf2_locexpr_baton
*dwarf_block
;
519 union field_location loc
;
521 /* * For a function or member type, this is 1 if the argument is
522 marked artificial. Artificial arguments should not be shown
523 to the user. For TYPE_CODE_RANGE it is set if the specific
524 bound is not defined. */
526 unsigned int artificial
: 1;
528 /* * Discriminant for union field_location. */
530 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
532 /* * Size of this field, in bits, or zero if not packed.
533 If non-zero in an array type, indicates the element size in
534 bits (used only in Ada at the moment).
535 For an unpacked field, the field's type's length
536 says how many bytes the field occupies. */
538 unsigned int bitsize
: 28;
540 /* * In a struct or union type, type of this field.
541 - In a function or member type, type of this argument.
542 - In an array type, the domain-type of the array. */
546 /* * Name of field, value or argument.
547 NULL for range bounds, array domains, and member function
555 /* * Low bound of range. */
557 struct dynamic_prop low
;
559 /* * High bound of range. */
561 struct dynamic_prop high
;
563 /* True if HIGH range bound contains the number of elements in the
564 subrange. This affects how the final hight bound is computed. */
566 int flag_upper_bound_is_count
: 1;
568 /* True if LOW or/and HIGH are resolved into a static bound from
571 int flag_bound_evaluated
: 1;
574 /* Compare two range_bounds objects for equality. Simply does
575 memberwise comparison. */
576 extern bool operator== (const range_bounds
&l
, const range_bounds
&r
);
578 /* Compare two range_bounds objects for inequality. */
579 static inline bool operator!= (const range_bounds
&l
, const range_bounds
&r
)
586 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
587 point to cplus_struct_default, a default static instance of a
588 struct cplus_struct_type. */
590 struct cplus_struct_type
*cplus_stuff
;
592 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
593 provides additional information. */
595 struct gnat_aux_type
*gnat_stuff
;
597 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a
598 floatformat object that describes the floating-point value
599 that resides within the type. */
601 const struct floatformat
*floatformat
;
603 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
605 struct func_type
*func_stuff
;
607 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
608 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
611 struct type
*self_type
;
614 /* * Main structure representing a type in GDB.
616 This structure is space-critical. Its layout has been tweaked to
617 reduce the space used. */
621 /* * Code for kind of type. */
623 ENUM_BITFIELD(type_code
) code
: 8;
625 /* * Flags about this type. These fields appear at this location
626 because they packs nicely here. See the TYPE_* macros for
627 documentation about these fields. */
629 unsigned int flag_unsigned
: 1;
630 unsigned int flag_nosign
: 1;
631 unsigned int flag_stub
: 1;
632 unsigned int flag_target_stub
: 1;
633 unsigned int flag_static
: 1;
634 unsigned int flag_prototyped
: 1;
635 unsigned int flag_incomplete
: 1;
636 unsigned int flag_varargs
: 1;
637 unsigned int flag_vector
: 1;
638 unsigned int flag_stub_supported
: 1;
639 unsigned int flag_gnu_ifunc
: 1;
640 unsigned int flag_fixed_instance
: 1;
641 unsigned int flag_objfile_owned
: 1;
643 /* * True if this type was declared with "class" rather than
646 unsigned int flag_declared_class
: 1;
648 /* * True if this is an enum type with disjoint values. This
649 affects how the enum is printed. */
651 unsigned int flag_flag_enum
: 1;
653 /* * A discriminant telling us which field of the type_specific
654 union is being used for this type, if any. */
656 ENUM_BITFIELD(type_specific_kind
) type_specific_field
: 3;
658 /* * Number of fields described for this type. This field appears
659 at this location because it packs nicely here. */
663 /* * Name of this type, or NULL if none.
665 This is used for printing only, except by poorly designed C++
666 code. For looking up a name, look for a symbol in the
667 VAR_DOMAIN. This is generally allocated in the objfile's
668 obstack. However coffread.c uses malloc. */
672 /* * Tag name for this type, or NULL if none. This means that the
673 name of the type consists of a keyword followed by the tag name.
674 Which keyword is determined by the type code ("struct" for
675 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
676 languages with this feature.
678 This is used for printing only, except by poorly designed C++ code.
679 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
680 One more legitimate use is that if TYPE_STUB is set, this is
681 the name to use to look for definitions in other files. */
683 const char *tag_name
;
685 /* * Every type is now associated with a particular objfile, and the
686 type is allocated on the objfile_obstack for that objfile. One
687 problem however, is that there are times when gdb allocates new
688 types while it is not in the process of reading symbols from a
689 particular objfile. Fortunately, these happen when the type
690 being created is a derived type of an existing type, such as in
691 lookup_pointer_type(). So we can just allocate the new type
692 using the same objfile as the existing type, but to do this we
693 need a backpointer to the objfile from the existing type. Yes
694 this is somewhat ugly, but without major overhaul of the internal
695 type system, it can't be avoided for now. */
697 union type_owner owner
;
699 /* * For a pointer type, describes the type of object pointed to.
700 - For an array type, describes the type of the elements.
701 - For a function or method type, describes the type of the return value.
702 - For a range type, describes the type of the full range.
703 - For a complex type, describes the type of each coordinate.
704 - For a special record or union type encoding a dynamic-sized type
705 in GNAT, a memoized pointer to a corresponding static version of
707 - Unused otherwise. */
709 struct type
*target_type
;
711 /* * For structure and union types, a description of each field.
712 For set and pascal array types, there is one "field",
713 whose type is the domain type of the set or array.
714 For range types, there are two "fields",
715 the minimum and maximum values (both inclusive).
716 For enum types, each possible value is described by one "field".
717 For a function or method type, a "field" for each parameter.
718 For C++ classes, there is one field for each base class (if it is
719 a derived class) plus one field for each class data member. Member
720 functions are recorded elsewhere.
722 Using a pointer to a separate array of fields
723 allows all types to have the same size, which is useful
724 because we can allocate the space for a type before
725 we know what to put in it. */
729 struct field
*fields
;
731 /* * Union member used for range types. */
733 struct range_bounds
*bounds
;
737 /* * Slot to point to additional language-specific fields of this
740 union type_specific type_specific
;
742 /* * Contains all dynamic type properties. */
743 struct dynamic_prop_list
*dyn_prop_list
;
746 /* * A ``struct type'' describes a particular instance of a type, with
747 some particular qualification. */
751 /* * Type that is a pointer to this type.
752 NULL if no such pointer-to type is known yet.
753 The debugger may add the address of such a type
754 if it has to construct one later. */
756 struct type
*pointer_type
;
758 /* * C++: also need a reference type. */
760 struct type
*reference_type
;
762 /* * A C++ rvalue reference type added in C++11. */
764 struct type
*rvalue_reference_type
;
766 /* * Variant chain. This points to a type that differs from this
767 one only in qualifiers and length. Currently, the possible
768 qualifiers are const, volatile, code-space, data-space, and
769 address class. The length may differ only when one of the
770 address class flags are set. The variants are linked in a
771 circular ring and share MAIN_TYPE. */
775 /* * Flags specific to this instance of the type, indicating where
778 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
779 binary or-ed with the target type, with a special case for
780 address class and space class. For example if this typedef does
781 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
782 instance flags are completely inherited from the target type. No
783 qualifiers can be cleared by the typedef. See also
787 /* * Length of storage for a value of this type. The value is the
788 expression in host bytes of what sizeof(type) would return. This
789 size includes padding. For example, an i386 extended-precision
790 floating point value really only occupies ten bytes, but most
791 ABI's declare its size to be 12 bytes, to preserve alignment.
792 A `struct type' representing such a floating-point type would
793 have a `length' value of 12, even though the last two bytes are
796 Since this field is expressed in host bytes, its value is appropriate
797 to pass to memcpy and such (it is assumed that GDB itself always runs
798 on an 8-bits addressable architecture). However, when using it for
799 target address arithmetic (e.g. adding it to a target address), the
800 type_length_units function should be used in order to get the length
801 expressed in target addressable memory units. */
805 /* * Core type, shared by a group of qualified types. */
807 struct main_type
*main_type
;
810 #define NULL_TYPE ((struct type *) 0)
815 /* * The overloaded name.
816 This is generally allocated in the objfile's obstack.
817 However stabsread.c sometimes uses malloc. */
821 /* * The number of methods with this name. */
825 /* * The list of methods. */
827 struct fn_field
*fn_fields
;
834 /* * If is_stub is clear, this is the mangled name which we can look
835 up to find the address of the method (FIXME: it would be cleaner
836 to have a pointer to the struct symbol here instead).
838 If is_stub is set, this is the portion of the mangled name which
839 specifies the arguments. For example, "ii", if there are two int
840 arguments, or "" if there are no arguments. See gdb_mangle_name
841 for the conversion from this format to the one used if is_stub is
844 const char *physname
;
846 /* * The function type for the method.
848 (This comment used to say "The return value of the method", but
849 that's wrong. The function type is expected here, i.e. something
850 with TYPE_CODE_METHOD, and *not* the return-value type). */
854 /* * For virtual functions. First baseclass that defines this
857 struct type
*fcontext
;
861 unsigned int is_const
:1;
862 unsigned int is_volatile
:1;
863 unsigned int is_private
:1;
864 unsigned int is_protected
:1;
865 unsigned int is_artificial
:1;
867 /* * A stub method only has some fields valid (but they are enough
868 to reconstruct the rest of the fields). */
870 unsigned int is_stub
:1;
872 /* * True if this function is a constructor, false otherwise. */
874 unsigned int is_constructor
: 1;
878 unsigned int dummy
:9;
880 /* * Index into that baseclass's virtual function table, minus 2;
881 else if static: VOFFSET_STATIC; else: 0. */
883 unsigned int voffset
:16;
885 #define VOFFSET_STATIC 1
891 /* * Unqualified name to be prefixed by owning class qualified
896 /* * Type this typedef named NAME represents. */
900 /* * True if this field was declared protected, false otherwise. */
901 unsigned int is_protected
: 1;
903 /* * True if this field was declared private, false otherwise. */
904 unsigned int is_private
: 1;
907 /* * C++ language-specific information for TYPE_CODE_STRUCT and
908 TYPE_CODE_UNION nodes. */
910 struct cplus_struct_type
912 /* * Number of base classes this type derives from. The
913 baseclasses are stored in the first N_BASECLASSES fields
914 (i.e. the `fields' field of the struct type). The only fields
915 of struct field that are used are: type, name, loc.bitpos. */
919 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
920 All access to this field must be through TYPE_VPTR_FIELDNO as one
921 thing it does is check whether the field has been initialized.
922 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
923 which for portability reasons doesn't initialize this field.
924 TYPE_VPTR_FIELDNO returns -1 for this case.
926 If -1, we were unable to find the virtual function table pointer in
927 initial symbol reading, and get_vptr_fieldno should be called to find
928 it if possible. get_vptr_fieldno will update this field if possible.
929 Otherwise the value is left at -1.
931 Unused if this type does not have virtual functions. */
935 /* * Number of methods with unique names. All overloaded methods
936 with the same name count only once. */
940 /* * Number of template arguments. */
942 unsigned short n_template_arguments
;
944 /* * One if this struct is a dynamic class, as defined by the
945 Itanium C++ ABI: if it requires a virtual table pointer,
946 because it or any of its base classes have one or more virtual
947 member functions or virtual base classes. Minus one if not
948 dynamic. Zero if not yet computed. */
952 /* * The base class which defined the virtual function table pointer. */
954 struct type
*vptr_basetype
;
956 /* * For derived classes, the number of base classes is given by
957 n_baseclasses and virtual_field_bits is a bit vector containing
958 one bit per base class. If the base class is virtual, the
959 corresponding bit will be set.
964 class C : public B, public virtual A {};
966 B is a baseclass of C; A is a virtual baseclass for C.
967 This is a C++ 2.0 language feature. */
969 B_TYPE
*virtual_field_bits
;
971 /* * For classes with private fields, the number of fields is
972 given by nfields and private_field_bits is a bit vector
973 containing one bit per field.
975 If the field is private, the corresponding bit will be set. */
977 B_TYPE
*private_field_bits
;
979 /* * For classes with protected fields, the number of fields is
980 given by nfields and protected_field_bits is a bit vector
981 containing one bit per field.
983 If the field is private, the corresponding bit will be set. */
985 B_TYPE
*protected_field_bits
;
987 /* * For classes with fields to be ignored, either this is
988 optimized out or this field has length 0. */
990 B_TYPE
*ignore_field_bits
;
992 /* * For classes, structures, and unions, a description of each
993 field, which consists of an overloaded name, followed by the
994 types of arguments that the method expects, and then the name
995 after it has been renamed to make it distinct.
997 fn_fieldlists points to an array of nfn_fields of these. */
999 struct fn_fieldlist
*fn_fieldlists
;
1001 /* * typedefs defined inside this class. typedef_field points to
1002 an array of typedef_field_count elements. */
1004 struct decl_field
*typedef_field
;
1006 unsigned typedef_field_count
;
1008 /* * The nested types defined by this type. nested_types points to
1009 an array of nested_types_count elements. */
1011 struct decl_field
*nested_types
;
1013 unsigned nested_types_count
;
1015 /* * The template arguments. This is an array with
1016 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
1019 struct symbol
**template_arguments
;
1022 /* * Struct used to store conversion rankings. */
1028 /* * When two conversions are of the same type and therefore have
1029 the same rank, subrank is used to differentiate the two.
1031 Eg: Two derived-class-pointer to base-class-pointer conversions
1032 would both have base pointer conversion rank, but the
1033 conversion with the shorter distance to the ancestor is
1034 preferable. 'subrank' would be used to reflect that. */
1039 /* * Struct used for ranking a function for overload resolution. */
1041 struct badness_vector
1047 /* * GNAT Ada-specific information for various Ada types. */
1049 struct gnat_aux_type
1051 /* * Parallel type used to encode information about dynamic types
1052 used in Ada (such as variant records, variable-size array,
1054 struct type
* descriptive_type
;
1057 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1061 /* * The calling convention for targets supporting multiple ABIs.
1062 Right now this is only fetched from the Dwarf-2
1063 DW_AT_calling_convention attribute. The value is one of the
1064 DW_CC enum dwarf_calling_convention constants. */
1066 unsigned calling_convention
: 8;
1068 /* * Whether this function normally returns to its caller. It is
1069 set from the DW_AT_noreturn attribute if set on the
1070 DW_TAG_subprogram. */
1072 unsigned int is_noreturn
: 1;
1074 /* * Only those DW_TAG_call_site's in this function that have
1075 DW_AT_call_tail_call set are linked in this list. Function
1076 without its tail call list complete
1077 (DW_AT_call_all_tail_calls or its superset
1078 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1079 DW_TAG_call_site's exist in such function. */
1081 struct call_site
*tail_call_list
;
1083 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1084 contains the method. */
1086 struct type
*self_type
;
1089 /* struct call_site_parameter can be referenced in callees by several ways. */
1091 enum call_site_parameter_kind
1093 /* * Use field call_site_parameter.u.dwarf_reg. */
1094 CALL_SITE_PARAMETER_DWARF_REG
,
1096 /* * Use field call_site_parameter.u.fb_offset. */
1097 CALL_SITE_PARAMETER_FB_OFFSET
,
1099 /* * Use field call_site_parameter.u.param_offset. */
1100 CALL_SITE_PARAMETER_PARAM_OFFSET
1103 struct call_site_target
1105 union field_location loc
;
1107 /* * Discriminant for union field_location. */
1109 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
1112 union call_site_parameter_u
1114 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1115 as DWARF register number, for register passed
1120 /* * Offset from the callee's frame base, for stack passed
1121 parameters. This equals offset from the caller's stack
1124 CORE_ADDR fb_offset
;
1126 /* * Offset relative to the start of this PER_CU to
1127 DW_TAG_formal_parameter which is referenced by both
1128 caller and the callee. */
1130 cu_offset param_cu_off
;
1133 struct call_site_parameter
1135 ENUM_BITFIELD (call_site_parameter_kind
) kind
: 2;
1137 union call_site_parameter_u u
;
1139 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1141 const gdb_byte
*value
;
1144 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1145 It may be NULL if not provided by DWARF. */
1147 const gdb_byte
*data_value
;
1148 size_t data_value_size
;
1151 /* * A place where a function gets called from, represented by
1152 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1156 /* * Address of the first instruction after this call. It must be
1157 the first field as we overload core_addr_hash and core_addr_eq
1162 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1164 struct call_site
*tail_call_next
;
1166 /* * Describe DW_AT_call_target. Missing attribute uses
1167 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1169 struct call_site_target target
;
1171 /* * Size of the PARAMETER array. */
1173 unsigned parameter_count
;
1175 /* * CU of the function where the call is located. It gets used
1176 for DWARF blocks execution in the parameter array below. */
1178 struct dwarf2_per_cu_data
*per_cu
;
1180 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1182 struct call_site_parameter parameter
[1];
1185 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1186 static structure. */
1188 extern const struct cplus_struct_type cplus_struct_default
;
1190 extern void allocate_cplus_struct_type (struct type
*);
1192 #define INIT_CPLUS_SPECIFIC(type) \
1193 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1194 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1195 &cplus_struct_default)
1197 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1199 #define HAVE_CPLUS_STRUCT(type) \
1200 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1201 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1203 extern const struct gnat_aux_type gnat_aux_default
;
1205 extern void allocate_gnat_aux_type (struct type
*);
1207 #define INIT_GNAT_SPECIFIC(type) \
1208 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1209 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1210 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1211 /* * A macro that returns non-zero if the type-specific data should be
1212 read as "gnat-stuff". */
1213 #define HAVE_GNAT_AUX_INFO(type) \
1214 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1216 #define INIT_FUNC_SPECIFIC(type) \
1217 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1218 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1219 TYPE_ZALLOC (type, \
1220 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1222 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1223 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1224 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1225 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1226 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1227 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1228 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1229 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1230 #define TYPE_CHAIN(thistype) (thistype)->chain
1231 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1232 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1233 so you only have to call check_typedef once. Since allocate_value
1234 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1235 #define TYPE_LENGTH(thistype) (thistype)->length
1236 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1237 type, you need to do TYPE_CODE (check_type (this_type)). */
1238 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1239 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1240 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1242 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1243 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1244 #define TYPE_LOW_BOUND(range_type) \
1245 TYPE_RANGE_DATA(range_type)->low.data.const_val
1246 #define TYPE_HIGH_BOUND(range_type) \
1247 TYPE_RANGE_DATA(range_type)->high.data.const_val
1248 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1249 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1250 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1251 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1252 #define TYPE_HIGH_BOUND_KIND(range_type) \
1253 TYPE_RANGE_DATA(range_type)->high.kind
1254 #define TYPE_LOW_BOUND_KIND(range_type) \
1255 TYPE_RANGE_DATA(range_type)->low.kind
1257 /* Property accessors for the type data location. */
1258 #define TYPE_DATA_LOCATION(thistype) \
1259 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1260 #define TYPE_DATA_LOCATION_BATON(thistype) \
1261 TYPE_DATA_LOCATION (thistype)->data.baton
1262 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1263 TYPE_DATA_LOCATION (thistype)->data.const_val
1264 #define TYPE_DATA_LOCATION_KIND(thistype) \
1265 TYPE_DATA_LOCATION (thistype)->kind
1267 /* Property accessors for the type allocated/associated. */
1268 #define TYPE_ALLOCATED_PROP(thistype) \
1269 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1270 #define TYPE_ASSOCIATED_PROP(thistype) \
1271 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1273 /* Attribute accessors for dynamic properties. */
1274 #define TYPE_DYN_PROP_LIST(thistype) \
1275 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1276 #define TYPE_DYN_PROP_BATON(dynprop) \
1278 #define TYPE_DYN_PROP_ADDR(dynprop) \
1279 dynprop->data.const_val
1280 #define TYPE_DYN_PROP_KIND(dynprop) \
1284 /* Moto-specific stuff for FORTRAN arrays. */
1286 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1287 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1288 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1289 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1291 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1292 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1294 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1295 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1299 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1300 /* Do not call this, use TYPE_SELF_TYPE. */
1301 extern struct type
*internal_type_self_type (struct type
*);
1302 extern void set_type_self_type (struct type
*, struct type
*);
1304 extern int internal_type_vptr_fieldno (struct type
*);
1305 extern void set_type_vptr_fieldno (struct type
*, int);
1306 extern struct type
*internal_type_vptr_basetype (struct type
*);
1307 extern void set_type_vptr_basetype (struct type
*, struct type
*);
1308 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1309 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1311 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1312 #define TYPE_SPECIFIC_FIELD(thistype) \
1313 TYPE_MAIN_TYPE(thistype)->type_specific_field
1314 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1315 where we're trying to print an Ada array using the C language.
1316 In that case, there is no "cplus_stuff", but the C language assumes
1317 that there is. What we do, in that case, is pretend that there is
1318 an implicit one which is the default cplus stuff. */
1319 #define TYPE_CPLUS_SPECIFIC(thistype) \
1320 (!HAVE_CPLUS_STRUCT(thistype) \
1321 ? (struct cplus_struct_type*)&cplus_struct_default \
1322 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1323 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1324 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1325 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1326 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1327 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1328 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1329 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1330 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1331 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1332 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1333 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1334 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1335 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1336 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1338 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1339 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1340 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1342 #define FIELD_TYPE(thisfld) ((thisfld).type)
1343 #define FIELD_NAME(thisfld) ((thisfld).name)
1344 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1345 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1346 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1347 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1348 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1349 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1350 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1351 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1352 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1353 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1354 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1355 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1356 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1357 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1358 #define SET_FIELD_PHYSNAME(thisfld, name) \
1359 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1360 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1361 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1362 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1363 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1364 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1365 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1366 FIELD_DWARF_BLOCK (thisfld) = (addr))
1367 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1368 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1370 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1371 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1372 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1373 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1374 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1375 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1376 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1377 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1378 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1379 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1380 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1381 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1383 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1384 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1385 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1386 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1387 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1388 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1389 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1390 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1391 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1392 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1393 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1394 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1395 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1396 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1397 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1398 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1399 #define TYPE_FIELD_PRIVATE(thistype, n) \
1400 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1401 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1402 #define TYPE_FIELD_PROTECTED(thistype, n) \
1403 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1404 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1405 #define TYPE_FIELD_IGNORE(thistype, n) \
1406 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1407 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1408 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1409 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1410 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1412 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1413 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1414 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1415 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1416 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1418 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1419 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1420 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1421 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1422 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1423 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1425 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1426 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1427 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1428 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1429 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1430 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1431 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1432 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1433 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1434 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1435 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1436 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1437 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1438 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1439 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1441 /* Accessors for typedefs defined by a class. */
1442 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1443 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1444 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1445 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1446 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1447 TYPE_TYPEDEF_FIELD (thistype, n).name
1448 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1449 TYPE_TYPEDEF_FIELD (thistype, n).type
1450 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1451 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1452 #define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \
1453 TYPE_TYPEDEF_FIELD (thistype, n).is_protected
1454 #define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
1455 TYPE_TYPEDEF_FIELD (thistype, n).is_private
1457 #define TYPE_NESTED_TYPES_ARRAY(thistype) \
1458 TYPE_CPLUS_SPECIFIC (thistype)->nested_types
1459 #define TYPE_NESTED_TYPES_FIELD(thistype, n) \
1460 TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n]
1461 #define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \
1462 TYPE_NESTED_TYPES_FIELD (thistype, n).name
1463 #define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \
1464 TYPE_NESTED_TYPES_FIELD (thistype, n).type
1465 #define TYPE_NESTED_TYPES_COUNT(thistype) \
1466 TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count
1467 #define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \
1468 TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected
1469 #define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
1470 TYPE_NESTED_TYPES_FIELD (thistype, n).is_private
1472 #define TYPE_IS_OPAQUE(thistype) \
1473 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1474 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1475 && (TYPE_NFIELDS (thistype) == 0) \
1476 && (!HAVE_CPLUS_STRUCT (thistype) \
1477 || TYPE_NFN_FIELDS (thistype) == 0) \
1478 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1480 /* * A helper macro that returns the name of a type or "unnamed type"
1481 if the type has no name. */
1483 #define TYPE_SAFE_NAME(type) \
1484 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1486 /* * A helper macro that returns the name of an error type. If the
1487 type has a name, it is used; otherwise, a default is used. */
1489 #define TYPE_ERROR_NAME(type) \
1490 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1492 /* Given TYPE, return its floatformat. */
1493 const struct floatformat
*floatformat_from_type (const struct type
*type
);
1497 /* Integral types. */
1499 /* Implicit size/sign (based on the architecture's ABI). */
1500 struct type
*builtin_void
;
1501 struct type
*builtin_char
;
1502 struct type
*builtin_short
;
1503 struct type
*builtin_int
;
1504 struct type
*builtin_long
;
1505 struct type
*builtin_signed_char
;
1506 struct type
*builtin_unsigned_char
;
1507 struct type
*builtin_unsigned_short
;
1508 struct type
*builtin_unsigned_int
;
1509 struct type
*builtin_unsigned_long
;
1510 struct type
*builtin_float
;
1511 struct type
*builtin_double
;
1512 struct type
*builtin_long_double
;
1513 struct type
*builtin_complex
;
1514 struct type
*builtin_double_complex
;
1515 struct type
*builtin_string
;
1516 struct type
*builtin_bool
;
1517 struct type
*builtin_long_long
;
1518 struct type
*builtin_unsigned_long_long
;
1519 struct type
*builtin_decfloat
;
1520 struct type
*builtin_decdouble
;
1521 struct type
*builtin_declong
;
1523 /* "True" character types.
1524 We use these for the '/c' print format, because c_char is just a
1525 one-byte integral type, which languages less laid back than C
1526 will print as ... well, a one-byte integral type. */
1527 struct type
*builtin_true_char
;
1528 struct type
*builtin_true_unsigned_char
;
1530 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1531 is for when an architecture needs to describe a register that has
1533 struct type
*builtin_int0
;
1534 struct type
*builtin_int8
;
1535 struct type
*builtin_uint8
;
1536 struct type
*builtin_int16
;
1537 struct type
*builtin_uint16
;
1538 struct type
*builtin_int32
;
1539 struct type
*builtin_uint32
;
1540 struct type
*builtin_int64
;
1541 struct type
*builtin_uint64
;
1542 struct type
*builtin_int128
;
1543 struct type
*builtin_uint128
;
1545 /* Wide character types. */
1546 struct type
*builtin_char16
;
1547 struct type
*builtin_char32
;
1548 struct type
*builtin_wchar
;
1550 /* Pointer types. */
1552 /* * `pointer to data' type. Some target platforms use an implicitly
1553 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1554 struct type
*builtin_data_ptr
;
1556 /* * `pointer to function (returning void)' type. Harvard
1557 architectures mean that ABI function and code pointers are not
1558 interconvertible. Similarly, since ANSI, C standards have
1559 explicitly said that pointers to functions and pointers to data
1560 are not interconvertible --- that is, you can't cast a function
1561 pointer to void * and back, and expect to get the same value.
1562 However, all function pointer types are interconvertible, so void
1563 (*) () can server as a generic function pointer. */
1565 struct type
*builtin_func_ptr
;
1567 /* * `function returning pointer to function (returning void)' type.
1568 The final void return type is not significant for it. */
1570 struct type
*builtin_func_func
;
1572 /* Special-purpose types. */
1574 /* * This type is used to represent a GDB internal function. */
1576 struct type
*internal_fn
;
1578 /* * This type is used to represent an xmethod. */
1579 struct type
*xmethod
;
1582 /* * Return the type table for the specified architecture. */
1584 extern const struct builtin_type
*builtin_type (struct gdbarch
*gdbarch
);
1586 /* * Per-objfile types used by symbol readers. */
1590 /* Basic types based on the objfile architecture. */
1591 struct type
*builtin_void
;
1592 struct type
*builtin_char
;
1593 struct type
*builtin_short
;
1594 struct type
*builtin_int
;
1595 struct type
*builtin_long
;
1596 struct type
*builtin_long_long
;
1597 struct type
*builtin_signed_char
;
1598 struct type
*builtin_unsigned_char
;
1599 struct type
*builtin_unsigned_short
;
1600 struct type
*builtin_unsigned_int
;
1601 struct type
*builtin_unsigned_long
;
1602 struct type
*builtin_unsigned_long_long
;
1603 struct type
*builtin_float
;
1604 struct type
*builtin_double
;
1605 struct type
*builtin_long_double
;
1607 /* * This type is used to represent symbol addresses. */
1608 struct type
*builtin_core_addr
;
1610 /* * This type represents a type that was unrecognized in symbol
1612 struct type
*builtin_error
;
1614 /* * Types used for symbols with no debug information. */
1615 struct type
*nodebug_text_symbol
;
1616 struct type
*nodebug_text_gnu_ifunc_symbol
;
1617 struct type
*nodebug_got_plt_symbol
;
1618 struct type
*nodebug_data_symbol
;
1619 struct type
*nodebug_unknown_symbol
;
1620 struct type
*nodebug_tls_symbol
;
1623 /* * Return the type table for the specified objfile. */
1625 extern const struct objfile_type
*objfile_type (struct objfile
*objfile
);
1627 /* Explicit floating-point formats. See "floatformat.h". */
1628 extern const struct floatformat
*floatformats_ieee_half
[BFD_ENDIAN_UNKNOWN
];
1629 extern const struct floatformat
*floatformats_ieee_single
[BFD_ENDIAN_UNKNOWN
];
1630 extern const struct floatformat
*floatformats_ieee_double
[BFD_ENDIAN_UNKNOWN
];
1631 extern const struct floatformat
*floatformats_ieee_double_littlebyte_bigword
[BFD_ENDIAN_UNKNOWN
];
1632 extern const struct floatformat
*floatformats_i387_ext
[BFD_ENDIAN_UNKNOWN
];
1633 extern const struct floatformat
*floatformats_m68881_ext
[BFD_ENDIAN_UNKNOWN
];
1634 extern const struct floatformat
*floatformats_arm_ext
[BFD_ENDIAN_UNKNOWN
];
1635 extern const struct floatformat
*floatformats_ia64_spill
[BFD_ENDIAN_UNKNOWN
];
1636 extern const struct floatformat
*floatformats_ia64_quad
[BFD_ENDIAN_UNKNOWN
];
1637 extern const struct floatformat
*floatformats_vax_f
[BFD_ENDIAN_UNKNOWN
];
1638 extern const struct floatformat
*floatformats_vax_d
[BFD_ENDIAN_UNKNOWN
];
1639 extern const struct floatformat
*floatformats_ibm_long_double
[BFD_ENDIAN_UNKNOWN
];
1642 /* * Allocate space for storing data associated with a particular
1643 type. We ensure that the space is allocated using the same
1644 mechanism that was used to allocate the space for the type
1645 structure itself. I.e. if the type is on an objfile's
1646 objfile_obstack, then the space for data associated with that type
1647 will also be allocated on the objfile_obstack. If the type is not
1648 associated with any particular objfile (such as builtin types),
1649 then the data space will be allocated with xmalloc, the same as for
1650 the type structure. */
1652 #define TYPE_ALLOC(t,size) \
1653 (TYPE_OBJFILE_OWNED (t) \
1654 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1657 #define TYPE_ZALLOC(t,size) \
1658 (TYPE_OBJFILE_OWNED (t) \
1659 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1663 /* Use alloc_type to allocate a type owned by an objfile. Use
1664 alloc_type_arch to allocate a type owned by an architecture. Use
1665 alloc_type_copy to allocate a type with the same owner as a
1666 pre-existing template type, no matter whether objfile or
1668 extern struct type
*alloc_type (struct objfile
*);
1669 extern struct type
*alloc_type_arch (struct gdbarch
*);
1670 extern struct type
*alloc_type_copy (const struct type
*);
1672 /* * Return the type's architecture. For types owned by an
1673 architecture, that architecture is returned. For types owned by an
1674 objfile, that objfile's architecture is returned. */
1676 extern struct gdbarch
*get_type_arch (const struct type
*);
1678 /* * This returns the target type (or NULL) of TYPE, also skipping
1681 extern struct type
*get_target_type (struct type
*type
);
1683 /* Return the equivalent of TYPE_LENGTH, but in number of target
1684 addressable memory units of the associated gdbarch instead of bytes. */
1686 extern unsigned int type_length_units (struct type
*type
);
1688 /* * Helper function to construct objfile-owned types. */
1690 extern struct type
*init_type (struct objfile
*, enum type_code
, int,
1692 extern struct type
*init_integer_type (struct objfile
*, int, int,
1694 extern struct type
*init_character_type (struct objfile
*, int, int,
1696 extern struct type
*init_boolean_type (struct objfile
*, int, int,
1698 extern struct type
*init_float_type (struct objfile
*, int, const char *,
1699 const struct floatformat
**);
1700 extern struct type
*init_decfloat_type (struct objfile
*, int, const char *);
1701 extern struct type
*init_complex_type (struct objfile
*, const char *,
1703 extern struct type
*init_pointer_type (struct objfile
*, int, const char *,
1706 /* Helper functions to construct architecture-owned types. */
1707 extern struct type
*arch_type (struct gdbarch
*, enum type_code
, int,
1709 extern struct type
*arch_integer_type (struct gdbarch
*, int, int,
1711 extern struct type
*arch_character_type (struct gdbarch
*, int, int,
1713 extern struct type
*arch_boolean_type (struct gdbarch
*, int, int,
1715 extern struct type
*arch_float_type (struct gdbarch
*, int, const char *,
1716 const struct floatformat
**);
1717 extern struct type
*arch_decfloat_type (struct gdbarch
*, int, const char *);
1718 extern struct type
*arch_complex_type (struct gdbarch
*, const char *,
1720 extern struct type
*arch_pointer_type (struct gdbarch
*, int, const char *,
1723 /* Helper functions to construct a struct or record type. An
1724 initially empty type is created using arch_composite_type().
1725 Fields are then added using append_composite_type_field*(). A union
1726 type has its size set to the largest field. A struct type has each
1727 field packed against the previous. */
1729 extern struct type
*arch_composite_type (struct gdbarch
*gdbarch
,
1730 const char *name
, enum type_code code
);
1731 extern void append_composite_type_field (struct type
*t
, const char *name
,
1732 struct type
*field
);
1733 extern void append_composite_type_field_aligned (struct type
*t
,
1737 struct field
*append_composite_type_field_raw (struct type
*t
, const char *name
,
1738 struct type
*field
);
1740 /* Helper functions to construct a bit flags type. An initially empty
1741 type is created using arch_flag_type(). Flags are then added using
1742 append_flag_type_field() and append_flag_type_flag(). */
1743 extern struct type
*arch_flags_type (struct gdbarch
*gdbarch
,
1744 const char *name
, int bit
);
1745 extern void append_flags_type_field (struct type
*type
,
1746 int start_bitpos
, int nr_bits
,
1747 struct type
*field_type
, const char *name
);
1748 extern void append_flags_type_flag (struct type
*type
, int bitpos
,
1751 extern void make_vector_type (struct type
*array_type
);
1752 extern struct type
*init_vector_type (struct type
*elt_type
, int n
);
1754 extern struct type
*lookup_reference_type (struct type
*, enum type_code
);
1755 extern struct type
*lookup_lvalue_reference_type (struct type
*);
1756 extern struct type
*lookup_rvalue_reference_type (struct type
*);
1759 extern struct type
*make_reference_type (struct type
*, struct type
**,
1762 extern struct type
*make_cv_type (int, int, struct type
*, struct type
**);
1764 extern struct type
*make_restrict_type (struct type
*);
1766 extern struct type
*make_unqualified_type (struct type
*);
1768 extern struct type
*make_atomic_type (struct type
*);
1770 extern void replace_type (struct type
*, struct type
*);
1772 extern int address_space_name_to_int (struct gdbarch
*, char *);
1774 extern const char *address_space_int_to_name (struct gdbarch
*, int);
1776 extern struct type
*make_type_with_address_space (struct type
*type
,
1777 int space_identifier
);
1779 extern struct type
*lookup_memberptr_type (struct type
*, struct type
*);
1781 extern struct type
*lookup_methodptr_type (struct type
*);
1783 extern void smash_to_method_type (struct type
*type
, struct type
*self_type
,
1784 struct type
*to_type
, struct field
*args
,
1785 int nargs
, int varargs
);
1787 extern void smash_to_memberptr_type (struct type
*, struct type
*,
1790 extern void smash_to_methodptr_type (struct type
*, struct type
*);
1792 extern struct type
*allocate_stub_method (struct type
*);
1794 extern const char *type_name_no_tag (const struct type
*);
1796 extern const char *type_name_no_tag_or_error (struct type
*type
);
1798 extern struct type
*lookup_struct_elt_type (struct type
*, const char *, int);
1800 extern struct type
*make_pointer_type (struct type
*, struct type
**);
1802 extern struct type
*lookup_pointer_type (struct type
*);
1804 extern struct type
*make_function_type (struct type
*, struct type
**);
1806 extern struct type
*lookup_function_type (struct type
*);
1808 extern struct type
*lookup_function_type_with_arguments (struct type
*,
1812 extern struct type
*create_static_range_type (struct type
*, struct type
*,
1816 extern struct type
*create_array_type_with_stride
1817 (struct type
*, struct type
*, struct type
*,
1818 struct dynamic_prop
*, unsigned int);
1820 extern struct type
*create_range_type (struct type
*, struct type
*,
1821 const struct dynamic_prop
*,
1822 const struct dynamic_prop
*);
1824 extern struct type
*create_array_type (struct type
*, struct type
*,
1827 extern struct type
*lookup_array_range_type (struct type
*, LONGEST
, LONGEST
);
1829 extern struct type
*create_string_type (struct type
*, struct type
*,
1831 extern struct type
*lookup_string_range_type (struct type
*, LONGEST
, LONGEST
);
1833 extern struct type
*create_set_type (struct type
*, struct type
*);
1835 extern struct type
*lookup_unsigned_typename (const struct language_defn
*,
1836 struct gdbarch
*, const char *);
1838 extern struct type
*lookup_signed_typename (const struct language_defn
*,
1839 struct gdbarch
*, const char *);
1841 extern void get_unsigned_type_max (struct type
*, ULONGEST
*);
1843 extern void get_signed_type_minmax (struct type
*, LONGEST
*, LONGEST
*);
1845 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1846 ADDR specifies the location of the variable the type is bound to.
1847 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1848 static properties is returned. */
1849 extern struct type
*resolve_dynamic_type (struct type
*type
,
1850 const gdb_byte
*valaddr
,
1853 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1854 extern int is_dynamic_type (struct type
*type
);
1856 /* * Return the dynamic property of the requested KIND from TYPE's
1857 list of dynamic properties. */
1858 extern struct dynamic_prop
*get_dyn_prop
1859 (enum dynamic_prop_node_kind kind
, const struct type
*type
);
1861 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1862 property to the given TYPE.
1864 This function assumes that TYPE is objfile-owned. */
1865 extern void add_dyn_prop
1866 (enum dynamic_prop_node_kind kind
, struct dynamic_prop prop
,
1869 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind
,
1872 extern struct type
*check_typedef (struct type
*);
1874 extern void check_stub_method_group (struct type
*, int);
1876 extern char *gdb_mangle_name (struct type
*, int, int);
1878 extern struct type
*lookup_typename (const struct language_defn
*,
1879 struct gdbarch
*, const char *,
1880 const struct block
*, int);
1882 extern struct type
*lookup_template_type (char *, struct type
*,
1883 const struct block
*);
1885 extern int get_vptr_fieldno (struct type
*, struct type
**);
1887 extern int get_discrete_bounds (struct type
*, LONGEST
*, LONGEST
*);
1889 extern int get_array_bounds (struct type
*type
, LONGEST
*low_bound
,
1890 LONGEST
*high_bound
);
1892 extern int discrete_position (struct type
*type
, LONGEST val
, LONGEST
*pos
);
1894 extern int class_types_same_p (const struct type
*, const struct type
*);
1896 extern int is_ancestor (struct type
*, struct type
*);
1898 extern int is_public_ancestor (struct type
*, struct type
*);
1900 extern int is_unique_ancestor (struct type
*, struct value
*);
1902 /* Overload resolution */
1904 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1906 /* * Badness if parameter list length doesn't match arg list length. */
1907 extern const struct rank LENGTH_MISMATCH_BADNESS
;
1909 /* * Dummy badness value for nonexistent parameter positions. */
1910 extern const struct rank TOO_FEW_PARAMS_BADNESS
;
1911 /* * Badness if no conversion among types. */
1912 extern const struct rank INCOMPATIBLE_TYPE_BADNESS
;
1914 /* * Badness of an exact match. */
1915 extern const struct rank EXACT_MATCH_BADNESS
;
1917 /* * Badness of integral promotion. */
1918 extern const struct rank INTEGER_PROMOTION_BADNESS
;
1919 /* * Badness of floating promotion. */
1920 extern const struct rank FLOAT_PROMOTION_BADNESS
;
1921 /* * Badness of converting a derived class pointer
1922 to a base class pointer. */
1923 extern const struct rank BASE_PTR_CONVERSION_BADNESS
;
1924 /* * Badness of integral conversion. */
1925 extern const struct rank INTEGER_CONVERSION_BADNESS
;
1926 /* * Badness of floating conversion. */
1927 extern const struct rank FLOAT_CONVERSION_BADNESS
;
1928 /* * Badness of integer<->floating conversions. */
1929 extern const struct rank INT_FLOAT_CONVERSION_BADNESS
;
1930 /* * Badness of conversion of pointer to void pointer. */
1931 extern const struct rank VOID_PTR_CONVERSION_BADNESS
;
1932 /* * Badness of conversion to boolean. */
1933 extern const struct rank BOOL_CONVERSION_BADNESS
;
1934 /* * Badness of converting derived to base class. */
1935 extern const struct rank BASE_CONVERSION_BADNESS
;
1936 /* * Badness of converting from non-reference to reference. Subrank
1937 is the type of reference conversion being done. */
1938 extern const struct rank REFERENCE_CONVERSION_BADNESS
;
1939 /* * Conversion to rvalue reference. */
1940 #define REFERENCE_CONVERSION_RVALUE 1
1941 /* * Conversion to const lvalue reference. */
1942 #define REFERENCE_CONVERSION_CONST_LVALUE 2
1944 /* * Badness of converting integer 0 to NULL pointer. */
1945 extern const struct rank NULL_POINTER_CONVERSION
;
1946 /* * Badness of cv-conversion. Subrank is a flag describing the conversions
1948 extern const struct rank CV_CONVERSION_BADNESS
;
1949 #define CV_CONVERSION_CONST 1
1950 #define CV_CONVERSION_VOLATILE 2
1952 /* Non-standard conversions allowed by the debugger */
1954 /* * Converting a pointer to an int is usually OK. */
1955 extern const struct rank NS_POINTER_CONVERSION_BADNESS
;
1957 /* * Badness of converting a (non-zero) integer constant
1959 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS
;
1961 extern struct rank
sum_ranks (struct rank a
, struct rank b
);
1962 extern int compare_ranks (struct rank a
, struct rank b
);
1964 extern int compare_badness (struct badness_vector
*, struct badness_vector
*);
1966 extern struct badness_vector
*rank_function (struct type
**, int,
1967 struct value
**, int);
1969 extern struct rank
rank_one_type (struct type
*, struct type
*,
1972 extern void recursive_dump_type (struct type
*, int);
1974 extern int field_is_static (struct field
*);
1978 extern void print_scalar_formatted (const gdb_byte
*, struct type
*,
1979 const struct value_print_options
*,
1980 int, struct ui_file
*);
1982 extern int can_dereference (struct type
*);
1984 extern int is_integral_type (struct type
*);
1986 extern int is_floating_type (struct type
*);
1988 extern int is_scalar_type (struct type
*type
);
1990 extern int is_scalar_type_recursive (struct type
*);
1992 extern int class_or_union_p (const struct type
*);
1994 extern void maintenance_print_type (const char *, int);
1996 extern htab_t
create_copied_types_hash (struct objfile
*objfile
);
1998 extern struct type
*copy_type_recursive (struct objfile
*objfile
,
2000 htab_t copied_types
);
2002 extern struct type
*copy_type (const struct type
*type
);
2004 extern int types_equal (struct type
*, struct type
*);
2006 extern int types_deeply_equal (struct type
*, struct type
*);
2008 extern int type_not_allocated (const struct type
*type
);
2010 extern int type_not_associated (const struct type
*type
);
2012 #endif /* GDBTYPES_H */