2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2016 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.
49 /* Forward declarations for prototypes. */
52 struct value_print_options
;
55 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
56 are already DWARF-specific. */
58 /* * Offset relative to the start of its containing CU (compilation
65 /* * Offset relative to the start of its .debug_info or .debug_types
70 unsigned int sect_off
;
73 /* Some macros for char-based bitfields. */
75 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
76 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
77 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
78 #define B_TYPE unsigned char
79 #define B_BYTES(x) ( 1 + ((x)>>3) )
80 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
82 /* * Different kinds of data types are distinguished by the `code'
87 TYPE_CODE_BITSTRING
= -1, /**< Deprecated */
88 TYPE_CODE_UNDEF
= 0, /**< Not used; catches errors */
89 TYPE_CODE_PTR
, /**< Pointer type */
91 /* * Array type with lower & upper bounds.
93 Regardless of the language, GDB represents multidimensional
94 array types the way C does: as arrays of arrays. So an
95 instance of a GDB array type T can always be seen as a series
96 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
99 Row-major languages like C lay out multi-dimensional arrays so
100 that incrementing the rightmost index in a subscripting
101 expression results in the smallest change in the address of the
102 element referred to. Column-major languages like Fortran lay
103 them out so that incrementing the leftmost index results in the
106 This means that, in column-major languages, working our way
107 from type to target type corresponds to working through indices
108 from right to left, not left to right. */
111 TYPE_CODE_STRUCT
, /**< C struct or Pascal record */
112 TYPE_CODE_UNION
, /**< C union or Pascal variant part */
113 TYPE_CODE_ENUM
, /**< Enumeration type */
114 TYPE_CODE_FLAGS
, /**< Bit flags type */
115 TYPE_CODE_FUNC
, /**< Function type */
116 TYPE_CODE_INT
, /**< Integer type */
118 /* * Floating type. This is *NOT* a complex type. Beware, there
119 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
123 /* * Void type. The length field specifies the length (probably
124 always one) which is used in pointer arithmetic involving
125 pointers to this type, but actually dereferencing such a
126 pointer is invalid; a void type has no length and no actual
127 representation in memory or registers. A pointer to a void
128 type is a generic pointer. */
131 TYPE_CODE_SET
, /**< Pascal sets */
132 TYPE_CODE_RANGE
, /**< Range (integers within spec'd bounds). */
134 /* * A string type which is like an array of character but prints
135 differently. It does not contain a length field as Pascal
136 strings (for many Pascals, anyway) do; if we want to deal with
137 such strings, we should use a new type code. */
140 /* * Unknown type. The length field is valid if we were able to
141 deduce that much about the type, or 0 if we don't even know
146 TYPE_CODE_METHOD
, /**< Method type */
148 /* * Pointer-to-member-function type. This describes how to access a
149 particular member function of a class (possibly a virtual
150 member function). The representation may vary between different
154 /* * Pointer-to-member type. This is the offset within a class to
155 some particular data member. The only currently supported
156 representation uses an unbiased offset, with -1 representing
157 NULL; this is used by the Itanium C++ ABI (used by GCC on all
161 TYPE_CODE_REF
, /**< C++ Reference types */
163 TYPE_CODE_CHAR
, /**< *real* character type */
165 /* * Boolean type. 0 is false, 1 is true, and other values are
166 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
170 TYPE_CODE_COMPLEX
, /**< Complex float */
174 TYPE_CODE_NAMESPACE
, /**< C++ namespace. */
176 TYPE_CODE_DECFLOAT
, /**< Decimal floating point. */
178 TYPE_CODE_MODULE
, /**< Fortran module. */
180 /* * Internal function type. */
181 TYPE_CODE_INTERNAL_FUNCTION
,
183 /* * Methods implemented in extension languages. */
187 /* * Some constants representing each bit field in the main_type. See
188 the bit-field-specific macros, below, for documentation of each
189 constant in this enum. These enum values are only used with
190 init_type. Note that the values are chosen not to conflict with
191 type_instance_flag_value; this lets init_type error-check its
196 TYPE_FLAG_UNSIGNED
= (1 << 9),
197 TYPE_FLAG_NOSIGN
= (1 << 10),
198 TYPE_FLAG_STUB
= (1 << 11),
199 TYPE_FLAG_TARGET_STUB
= (1 << 12),
200 TYPE_FLAG_STATIC
= (1 << 13),
201 TYPE_FLAG_PROTOTYPED
= (1 << 14),
202 TYPE_FLAG_INCOMPLETE
= (1 << 15),
203 TYPE_FLAG_VARARGS
= (1 << 16),
204 TYPE_FLAG_VECTOR
= (1 << 17),
205 TYPE_FLAG_FIXED_INSTANCE
= (1 << 18),
206 TYPE_FLAG_STUB_SUPPORTED
= (1 << 19),
207 TYPE_FLAG_GNU_IFUNC
= (1 << 20),
209 /* * Used for error-checking. */
210 TYPE_FLAG_MIN
= TYPE_FLAG_UNSIGNED
213 /* * Some bits for the type's instance_flags word. See the macros
214 below for documentation on each bit. Note that if you add a value
215 here, you must update the enum type_flag_value as well. */
217 enum type_instance_flag_value
219 TYPE_INSTANCE_FLAG_CONST
= (1 << 0),
220 TYPE_INSTANCE_FLAG_VOLATILE
= (1 << 1),
221 TYPE_INSTANCE_FLAG_CODE_SPACE
= (1 << 2),
222 TYPE_INSTANCE_FLAG_DATA_SPACE
= (1 << 3),
223 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1
= (1 << 4),
224 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2
= (1 << 5),
225 TYPE_INSTANCE_FLAG_NOTTEXT
= (1 << 6),
226 TYPE_INSTANCE_FLAG_RESTRICT
= (1 << 7),
227 TYPE_INSTANCE_FLAG_ATOMIC
= (1 << 8)
230 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
231 the type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
233 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
235 /* * No sign for this type. In C++, "char", "signed char", and
236 "unsigned char" are distinct types; so we need an extra flag to
237 indicate the absence of a sign! */
239 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
241 /* * This appears in a type's flags word if it is a stub type (e.g.,
242 if someone referenced a type that wasn't defined in a source file
243 via (struct sir_not_appearing_in_this_film *)). */
245 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
247 /* * The target type of this type is a stub type, and this type needs
248 to be updated if it gets un-stubbed in check_typedef. Used for
249 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
250 based on the TYPE_LENGTH of the target type. Also, set for
251 TYPE_CODE_TYPEDEF. */
253 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
255 /* * Static type. If this is set, the corresponding type had
257 Note: This may be unnecessary, since static data members
258 are indicated by other means (bitpos == -1). */
260 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
262 /* * This is a function type which appears to have a prototype. We
263 need this for function calls in order to tell us if it's necessary
264 to coerce the args, or to just do the standard conversions. This
265 is used with a short field. */
267 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
269 /* * This flag is used to indicate that processing for this type
272 (Mostly intended for HP platforms, where class methods, for
273 instance, can be encountered before their classes in the debug
274 info; the incomplete type has to be marked so that the class and
275 the method can be assigned correct types.) */
277 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
279 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
282 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
284 /* * Identify a vector type. Gcc is handling this by adding an extra
285 attribute to the array type. We slurp that in as a new flag of a
286 type. This is used only in dwarf2read.c. */
287 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
289 /* * The debugging formats (especially STABS) do not contain enough
290 information to represent all Ada types---especially those whose
291 size depends on dynamic quantities. Therefore, the GNAT Ada
292 compiler includes extra information in the form of additional type
293 definitions connected by naming conventions. This flag indicates
294 that the type is an ordinary (unencoded) GDB type that has been
295 created from the necessary run-time information, and does not need
296 further interpretation. Optionally marks ordinary, fixed-size GDB
299 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
301 /* * This debug target supports TYPE_STUB(t). In the unsupported case
302 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
303 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
304 guessed the TYPE_STUB(t) value (see dwarfread.c). */
306 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
308 /* * Not textual. By default, GDB treats all single byte integers as
309 characters (or elements of strings) unless this flag is set. */
311 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
313 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
314 address is returned by this function call. TYPE_TARGET_TYPE
315 determines the final returned function type to be presented to
318 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
320 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
321 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
322 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
324 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
325 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
326 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
328 /* * True if this type was declared using the "class" keyword. This is
329 only valid for C++ structure and enum types. If false, a structure
330 was declared as a "struct"; if true it was declared "class". For
331 enum types, this is true when "enum class" or "enum struct" was
332 used to declare the type.. */
334 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
336 /* * True if this type is a "flag" enum. A flag enum is one where all
337 the values are pairwise disjoint when "and"ed together. This
338 affects how enum values are printed. */
340 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
342 /* * Constant type. If this is set, the corresponding type has a
345 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
347 /* * Volatile type. If this is set, the corresponding type has a
348 volatile modifier. */
350 #define TYPE_VOLATILE(t) \
351 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
353 /* * Restrict type. If this is set, the corresponding type has a
354 restrict modifier. */
356 #define TYPE_RESTRICT(t) \
357 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT)
359 /* * Atomic type. If this is set, the corresponding type has an
362 #define TYPE_ATOMIC(t) \
363 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC)
365 /* * Instruction-space delimited type. This is for Harvard architectures
366 which have separate instruction and data address spaces (and perhaps
369 GDB usually defines a flat address space that is a superset of the
370 architecture's two (or more) address spaces, but this is an extension
371 of the architecture's model.
373 If TYPE_FLAG_INST is set, an object of the corresponding type
374 resides in instruction memory, even if its address (in the extended
375 flat address space) does not reflect this.
377 Similarly, if TYPE_FLAG_DATA is set, then an object of the
378 corresponding type resides in the data memory space, even if
379 this is not indicated by its (flat address space) address.
381 If neither flag is set, the default space for functions / methods
382 is instruction space, and for data objects is data memory. */
384 #define TYPE_CODE_SPACE(t) \
385 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
387 #define TYPE_DATA_SPACE(t) \
388 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
390 /* * Address class flags. Some environments provide for pointers
391 whose size is different from that of a normal pointer or address
392 types where the bits are interpreted differently than normal
393 addresses. The TYPE_FLAG_ADDRESS_CLASS_n flags may be used in
394 target specific ways to represent these different types of address
397 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
398 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
399 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
400 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
401 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
402 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
403 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
404 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
406 enum dynamic_prop_kind
408 PROP_UNDEFINED
, /* Not defined. */
409 PROP_CONST
, /* Constant. */
410 PROP_ADDR_OFFSET
, /* Address offset. */
411 PROP_LOCEXPR
, /* Location expression. */
412 PROP_LOCLIST
/* Location list. */
415 union dynamic_prop_data
417 /* Storage for constant property. */
421 /* Storage for dynamic property. */
426 /* * Used to store a dynamic property. */
430 /* Determine which field of the union dynamic_prop.data is used. */
431 enum dynamic_prop_kind kind
;
433 /* Storage for dynamic or static value. */
434 union dynamic_prop_data data
;
437 /* * Define a type's dynamic property node kind. */
438 enum dynamic_prop_node_kind
440 /* A property providing a type's data location.
441 Evaluating this field yields to the location of an object's data. */
442 DYN_PROP_DATA_LOCATION
,
444 /* A property representing DW_AT_allocated. The presence of this attribute
445 indicates that the object of the type can be allocated/deallocated. */
448 /* A property representing DW_AT_allocated. The presence of this attribute
449 indicated that the object of the type can be associated. */
453 /* * List for dynamic type attributes. */
454 struct dynamic_prop_list
456 /* The kind of dynamic prop in this node. */
457 enum dynamic_prop_node_kind prop_kind
;
459 /* The dynamic property itself. */
460 struct dynamic_prop prop
;
462 /* A pointer to the next dynamic property. */
463 struct dynamic_prop_list
*next
;
466 /* * Determine which field of the union main_type.fields[x].loc is
471 FIELD_LOC_KIND_BITPOS
, /**< bitpos */
472 FIELD_LOC_KIND_ENUMVAL
, /**< enumval */
473 FIELD_LOC_KIND_PHYSADDR
, /**< physaddr */
474 FIELD_LOC_KIND_PHYSNAME
, /**< physname */
475 FIELD_LOC_KIND_DWARF_BLOCK
/**< dwarf_block */
478 /* * A discriminant to determine which field in the
479 main_type.type_specific union is being used, if any.
481 For types such as TYPE_CODE_FLT, the use of this
482 discriminant is really redundant, as we know from the type code
483 which field is going to be used. As such, it would be possible to
484 reduce the size of this enum in order to save a bit or two for
485 other fields of struct main_type. But, since we still have extra
486 room , and for the sake of clarity and consistency, we treat all fields
487 of the union the same way. */
489 enum type_specific_kind
492 TYPE_SPECIFIC_CPLUS_STUFF
,
493 TYPE_SPECIFIC_GNAT_STUFF
,
494 TYPE_SPECIFIC_FLOATFORMAT
,
495 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
497 TYPE_SPECIFIC_SELF_TYPE
502 struct objfile
*objfile
;
503 struct gdbarch
*gdbarch
;
508 /* * Position of this field, counting in bits from start of
509 containing structure. For gdbarch_bits_big_endian=1
510 targets, it is the bit offset to the MSB. For
511 gdbarch_bits_big_endian=0 targets, it is the bit offset to
519 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
520 physaddr is the location (in the target) of the static
521 field. Otherwise, physname is the mangled label of the
525 const char *physname
;
527 /* * The field location can be computed by evaluating the
528 following DWARF block. Its DATA is allocated on
529 objfile_obstack - no CU load is needed to access it. */
531 struct dwarf2_locexpr_baton
*dwarf_block
;
536 union field_location loc
;
538 /* * For a function or member type, this is 1 if the argument is
539 marked artificial. Artificial arguments should not be shown
540 to the user. For TYPE_CODE_RANGE it is set if the specific
541 bound is not defined. */
543 unsigned int artificial
: 1;
545 /* * Discriminant for union field_location. */
547 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
549 /* * Size of this field, in bits, or zero if not packed.
550 If non-zero in an array type, indicates the element size in
551 bits (used only in Ada at the moment).
552 For an unpacked field, the field's type's length
553 says how many bytes the field occupies. */
555 unsigned int bitsize
: 28;
557 /* * In a struct or union type, type of this field.
558 - In a function or member type, type of this argument.
559 - In an array type, the domain-type of the array. */
563 /* * Name of field, value or argument.
564 NULL for range bounds, array domains, and member function
572 /* * Low bound of range. */
574 struct dynamic_prop low
;
576 /* * High bound of range. */
578 struct dynamic_prop high
;
580 /* True if HIGH range bound contains the number of elements in the
581 subrange. This affects how the final hight bound is computed. */
583 int flag_upper_bound_is_count
: 1;
585 /* True if LOW or/and HIGH are resolved into a static bound from
588 int flag_bound_evaluated
: 1;
593 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
594 point to cplus_struct_default, a default static instance of a
595 struct cplus_struct_type. */
597 struct cplus_struct_type
*cplus_stuff
;
599 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
600 provides additional information. */
602 struct gnat_aux_type
*gnat_stuff
;
604 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
605 floatformat objects that describe the floating-point value
606 that resides within the type. The first is for big endian
607 targets and the second is for little endian targets. */
609 const struct floatformat
**floatformat
;
611 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
613 struct func_type
*func_stuff
;
615 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
616 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
619 struct type
*self_type
;
622 /* * Main structure representing a type in GDB.
624 This structure is space-critical. Its layout has been tweaked to
625 reduce the space used. */
629 /* * Code for kind of type. */
631 ENUM_BITFIELD(type_code
) code
: 8;
633 /* * Flags about this type. These fields appear at this location
634 because they packs nicely here. See the TYPE_* macros for
635 documentation about these fields. */
637 unsigned int flag_unsigned
: 1;
638 unsigned int flag_nosign
: 1;
639 unsigned int flag_stub
: 1;
640 unsigned int flag_target_stub
: 1;
641 unsigned int flag_static
: 1;
642 unsigned int flag_prototyped
: 1;
643 unsigned int flag_incomplete
: 1;
644 unsigned int flag_varargs
: 1;
645 unsigned int flag_vector
: 1;
646 unsigned int flag_stub_supported
: 1;
647 unsigned int flag_gnu_ifunc
: 1;
648 unsigned int flag_fixed_instance
: 1;
649 unsigned int flag_objfile_owned
: 1;
651 /* * True if this type was declared with "class" rather than
654 unsigned int flag_declared_class
: 1;
656 /* * True if this is an enum type with disjoint values. This
657 affects how the enum is printed. */
659 unsigned int flag_flag_enum
: 1;
661 /* * A discriminant telling us which field of the type_specific
662 union is being used for this type, if any. */
664 ENUM_BITFIELD(type_specific_kind
) type_specific_field
: 3;
666 /* * Number of fields described for this type. This field appears
667 at this location because it packs nicely here. */
671 /* * Name of this type, or NULL if none.
673 This is used for printing only, except by poorly designed C++
674 code. For looking up a name, look for a symbol in the
675 VAR_DOMAIN. This is generally allocated in the objfile's
676 obstack. However coffread.c uses malloc. */
680 /* * Tag name for this type, or NULL if none. This means that the
681 name of the type consists of a keyword followed by the tag name.
682 Which keyword is determined by the type code ("struct" for
683 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
684 languages with this feature.
686 This is used for printing only, except by poorly designed C++ code.
687 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
688 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
689 the name to use to look for definitions in other files. */
691 const char *tag_name
;
693 /* * Every type is now associated with a particular objfile, and the
694 type is allocated on the objfile_obstack for that objfile. One
695 problem however, is that there are times when gdb allocates new
696 types while it is not in the process of reading symbols from a
697 particular objfile. Fortunately, these happen when the type
698 being created is a derived type of an existing type, such as in
699 lookup_pointer_type(). So we can just allocate the new type
700 using the same objfile as the existing type, but to do this we
701 need a backpointer to the objfile from the existing type. Yes
702 this is somewhat ugly, but without major overhaul of the internal
703 type system, it can't be avoided for now. */
705 union type_owner owner
;
707 /* * For a pointer type, describes the type of object pointed to.
708 - For an array type, describes the type of the elements.
709 - For a function or method type, describes the type of the return value.
710 - For a range type, describes the type of the full range.
711 - For a complex type, describes the type of each coordinate.
712 - For a special record or union type encoding a dynamic-sized type
713 in GNAT, a memoized pointer to a corresponding static version of
715 - Unused otherwise. */
717 struct type
*target_type
;
719 /* * For structure and union types, a description of each field.
720 For set and pascal array types, there is one "field",
721 whose type is the domain type of the set or array.
722 For range types, there are two "fields",
723 the minimum and maximum values (both inclusive).
724 For enum types, each possible value is described by one "field".
725 For a function or method type, a "field" for each parameter.
726 For C++ classes, there is one field for each base class (if it is
727 a derived class) plus one field for each class data member. Member
728 functions are recorded elsewhere.
730 Using a pointer to a separate array of fields
731 allows all types to have the same size, which is useful
732 because we can allocate the space for a type before
733 we know what to put in it. */
737 struct field
*fields
;
739 /* * Union member used for range types. */
741 struct range_bounds
*bounds
;
745 /* * Slot to point to additional language-specific fields of this
748 union type_specific type_specific
;
750 /* * Contains all dynamic type properties. */
751 struct dynamic_prop_list
*dyn_prop_list
;
754 /* * A ``struct type'' describes a particular instance of a type, with
755 some particular qualification. */
759 /* * Type that is a pointer to this type.
760 NULL if no such pointer-to type is known yet.
761 The debugger may add the address of such a type
762 if it has to construct one later. */
764 struct type
*pointer_type
;
766 /* * C++: also need a reference type. */
768 struct type
*reference_type
;
770 /* * Variant chain. This points to a type that differs from this
771 one only in qualifiers and length. Currently, the possible
772 qualifiers are const, volatile, code-space, data-space, and
773 address class. The length may differ only when one of the
774 address class flags are set. The variants are linked in a
775 circular ring and share MAIN_TYPE. */
779 /* * Flags specific to this instance of the type, indicating where
782 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
783 binary or-ed with the target type, with a special case for
784 address class and space class. For example if this typedef does
785 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
786 instance flags are completely inherited from the target type. No
787 qualifiers can be cleared by the typedef. See also
791 /* * Length of storage for a value of this type. The value is the
792 expression in host bytes of what sizeof(type) would return. This
793 size includes padding. For example, an i386 extended-precision
794 floating point value really only occupies ten bytes, but most
795 ABI's declare its size to be 12 bytes, to preserve alignment.
796 A `struct type' representing such a floating-point type would
797 have a `length' value of 12, even though the last two bytes are
800 Since this field is expressed in host bytes, its value is appropriate
801 to pass to memcpy and such (it is assumed that GDB itself always runs
802 on an 8-bits addressable architecture). However, when using it for
803 target address arithmetic (e.g. adding it to a target address), the
804 type_length_units function should be used in order to get the length
805 expressed in target addressable memory units. */
809 /* * Core type, shared by a group of qualified types. */
811 struct main_type
*main_type
;
814 #define NULL_TYPE ((struct type *) 0)
819 /* * The overloaded name.
820 This is generally allocated in the objfile's obstack.
821 However stabsread.c sometimes uses malloc. */
825 /* * The number of methods with this name. */
829 /* * The list of methods. */
831 struct fn_field
*fn_fields
;
838 /* * If is_stub is clear, this is the mangled name which we can look
839 up to find the address of the method (FIXME: it would be cleaner
840 to have a pointer to the struct symbol here instead).
842 If is_stub is set, this is the portion of the mangled name which
843 specifies the arguments. For example, "ii", if there are two int
844 arguments, or "" if there are no arguments. See gdb_mangle_name
845 for the conversion from this format to the one used if is_stub is
848 const char *physname
;
850 /* * The function type for the method.
852 (This comment used to say "The return value of the method", but
853 that's wrong. The function type is expected here, i.e. something
854 with TYPE_CODE_METHOD, and *not* the return-value type). */
858 /* * For virtual functions. First baseclass that defines this
861 struct type
*fcontext
;
865 unsigned int is_const
:1;
866 unsigned int is_volatile
:1;
867 unsigned int is_private
:1;
868 unsigned int is_protected
:1;
869 unsigned int is_public
:1;
870 unsigned int is_abstract
:1;
871 unsigned int is_static
:1;
872 unsigned int is_final
:1;
873 unsigned int is_synchronized
:1;
874 unsigned int is_native
:1;
875 unsigned int is_artificial
:1;
877 /* * A stub method only has some fields valid (but they are enough
878 to reconstruct the rest of the fields). */
880 unsigned int is_stub
:1;
882 /* * True if this function is a constructor, false otherwise. */
884 unsigned int is_constructor
: 1;
888 unsigned int dummy
:3;
890 /* * Index into that baseclass's virtual function table, minus 2;
891 else if static: VOFFSET_STATIC; else: 0. */
893 unsigned int voffset
:16;
895 #define VOFFSET_STATIC 1
901 /* * Unqualified name to be prefixed by owning class qualified
906 /* * Type this typedef named NAME represents. */
911 /* * C++ language-specific information for TYPE_CODE_STRUCT and
912 TYPE_CODE_UNION nodes. */
914 struct cplus_struct_type
916 /* * Number of base classes this type derives from. The
917 baseclasses are stored in the first N_BASECLASSES fields
918 (i.e. the `fields' field of the struct type). The only fields
919 of struct field that are used are: type, name, loc.bitpos. */
923 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
924 All access to this field must be through TYPE_VPTR_FIELDNO as one
925 thing it does is check whether the field has been initialized.
926 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
927 which for portability reasons doesn't initialize this field.
928 TYPE_VPTR_FIELDNO returns -1 for this case.
930 If -1, we were unable to find the virtual function table pointer in
931 initial symbol reading, and get_vptr_fieldno should be called to find
932 it if possible. get_vptr_fieldno will update this field if possible.
933 Otherwise the value is left at -1.
935 Unused if this type does not have virtual functions. */
939 /* * Number of methods with unique names. All overloaded methods
940 with the same name count only once. */
944 /* * Number of template arguments. */
946 unsigned short n_template_arguments
;
948 /* * One if this struct is a dynamic class, as defined by the
949 Itanium C++ ABI: if it requires a virtual table pointer,
950 because it or any of its base classes have one or more virtual
951 member functions or virtual base classes. Minus one if not
952 dynamic. Zero if not yet computed. */
956 /* * Non-zero if this type came from a Java CU. */
958 unsigned int is_java
: 1;
960 /* * The base class which defined the virtual function table pointer. */
962 struct type
*vptr_basetype
;
964 /* * For derived classes, the number of base classes is given by
965 n_baseclasses and virtual_field_bits is a bit vector containing
966 one bit per base class. If the base class is virtual, the
967 corresponding bit will be set.
972 class C : public B, public virtual A {};
974 B is a baseclass of C; A is a virtual baseclass for C.
975 This is a C++ 2.0 language feature. */
977 B_TYPE
*virtual_field_bits
;
979 /* * For classes with private fields, the number of fields is
980 given by nfields and private_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
*private_field_bits
;
987 /* * For classes with protected fields, the number of fields is
988 given by nfields and protected_field_bits is a bit vector
989 containing one bit per field.
991 If the field is private, the corresponding bit will be set. */
993 B_TYPE
*protected_field_bits
;
995 /* * For classes with fields to be ignored, either this is
996 optimized out or this field has length 0. */
998 B_TYPE
*ignore_field_bits
;
1000 /* * For classes, structures, and unions, a description of each
1001 field, which consists of an overloaded name, followed by the
1002 types of arguments that the method expects, and then the name
1003 after it has been renamed to make it distinct.
1005 fn_fieldlists points to an array of nfn_fields of these. */
1007 struct fn_fieldlist
*fn_fieldlists
;
1009 /* * typedefs defined inside this class. typedef_field points to
1010 an array of typedef_field_count elements. */
1012 struct typedef_field
*typedef_field
;
1014 unsigned typedef_field_count
;
1016 /* * The template arguments. This is an array with
1017 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
1020 struct symbol
**template_arguments
;
1023 /* * Struct used to store conversion rankings. */
1029 /* * When two conversions are of the same type and therefore have
1030 the same rank, subrank is used to differentiate the two.
1032 Eg: Two derived-class-pointer to base-class-pointer conversions
1033 would both have base pointer conversion rank, but the
1034 conversion with the shorter distance to the ancestor is
1035 preferable. 'subrank' would be used to reflect that. */
1040 /* * Struct used for ranking a function for overload resolution. */
1042 struct badness_vector
1048 /* * GNAT Ada-specific information for various Ada types. */
1050 struct gnat_aux_type
1052 /* * Parallel type used to encode information about dynamic types
1053 used in Ada (such as variant records, variable-size array,
1055 struct type
* descriptive_type
;
1058 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1062 /* * The calling convention for targets supporting multiple ABIs.
1063 Right now this is only fetched from the Dwarf-2
1064 DW_AT_calling_convention attribute. The value is one of the
1065 DW_CC enum dwarf_calling_convention constants. */
1067 unsigned calling_convention
: 8;
1069 /* * Whether this function normally returns to its caller. It is
1070 set from the DW_AT_noreturn attribute if set on the
1071 DW_TAG_subprogram. */
1073 unsigned int is_noreturn
: 1;
1075 /* * Only those DW_TAG_GNU_call_site's in this function that have
1076 DW_AT_GNU_tail_call set are linked in this list. Function
1077 without its tail call list complete
1078 (DW_AT_GNU_all_tail_call_sites or its superset
1079 DW_AT_GNU_all_call_sites) has TAIL_CALL_LIST NULL, even if some
1080 DW_TAG_GNU_call_site's exist in such function. */
1082 struct call_site
*tail_call_list
;
1084 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1085 contains the method. */
1087 struct type
*self_type
;
1090 /* struct call_site_parameter can be referenced in callees by several ways. */
1092 enum call_site_parameter_kind
1094 /* * Use field call_site_parameter.u.dwarf_reg. */
1095 CALL_SITE_PARAMETER_DWARF_REG
,
1097 /* * Use field call_site_parameter.u.fb_offset. */
1098 CALL_SITE_PARAMETER_FB_OFFSET
,
1100 /* * Use field call_site_parameter.u.param_offset. */
1101 CALL_SITE_PARAMETER_PARAM_OFFSET
1104 struct call_site_target
1106 union field_location loc
;
1108 /* * Discriminant for union field_location. */
1110 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
1113 union call_site_parameter_u
1115 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1116 as DWARF register number, for register passed
1121 /* * Offset from the callee's frame base, for stack passed
1122 parameters. This equals offset from the caller's stack
1125 CORE_ADDR fb_offset
;
1127 /* * Offset relative to the start of this PER_CU to
1128 DW_TAG_formal_parameter which is referenced by both
1129 caller and the callee. */
1131 cu_offset param_offset
;
1134 struct call_site_parameter
1136 ENUM_BITFIELD (call_site_parameter_kind
) kind
: 2;
1138 union call_site_parameter_u u
;
1140 /* * DW_TAG_formal_parameter's DW_AT_GNU_call_site_value. It
1143 const gdb_byte
*value
;
1146 /* * DW_TAG_formal_parameter's DW_AT_GNU_call_site_data_value.
1147 It may be NULL if not provided by DWARF. */
1149 const gdb_byte
*data_value
;
1150 size_t data_value_size
;
1153 /* * A place where a function gets called from, represented by
1154 DW_TAG_GNU_call_site. It can be looked up from
1155 symtab->call_site_htab. */
1159 /* * Address of the first instruction after this call. It must be
1160 the first field as we overload core_addr_hash and core_addr_eq
1165 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1167 struct call_site
*tail_call_next
;
1169 /* * Describe DW_AT_GNU_call_site_target. Missing attribute uses
1170 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1172 struct call_site_target target
;
1174 /* * Size of the PARAMETER array. */
1176 unsigned parameter_count
;
1178 /* * CU of the function where the call is located. It gets used
1179 for DWARF blocks execution in the parameter array below. */
1181 struct dwarf2_per_cu_data
*per_cu
;
1183 /* * Describe DW_TAG_GNU_call_site's DW_TAG_formal_parameter. */
1185 struct call_site_parameter parameter
[1];
1188 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1189 static structure. */
1191 extern const struct cplus_struct_type cplus_struct_default
;
1193 extern void allocate_cplus_struct_type (struct type
*);
1195 #define INIT_CPLUS_SPECIFIC(type) \
1196 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1197 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1198 &cplus_struct_default)
1200 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1202 #define HAVE_CPLUS_STRUCT(type) \
1203 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1204 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1206 extern const struct gnat_aux_type gnat_aux_default
;
1208 extern void allocate_gnat_aux_type (struct type
*);
1210 #define INIT_GNAT_SPECIFIC(type) \
1211 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1212 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1213 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1214 /* * A macro that returns non-zero if the type-specific data should be
1215 read as "gnat-stuff". */
1216 #define HAVE_GNAT_AUX_INFO(type) \
1217 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1219 #define INIT_FUNC_SPECIFIC(type) \
1220 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1221 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1222 TYPE_ZALLOC (type, \
1223 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1225 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1226 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1227 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1228 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1229 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1230 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1231 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1232 #define TYPE_CHAIN(thistype) (thistype)->chain
1233 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1234 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1235 so you only have to call check_typedef once. Since allocate_value
1236 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1237 #define TYPE_LENGTH(thistype) (thistype)->length
1238 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1239 type, you need to do TYPE_CODE (check_type (this_type)). */
1240 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1241 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1242 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1244 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1245 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1246 #define TYPE_LOW_BOUND(range_type) \
1247 TYPE_RANGE_DATA(range_type)->low.data.const_val
1248 #define TYPE_HIGH_BOUND(range_type) \
1249 TYPE_RANGE_DATA(range_type)->high.data.const_val
1250 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1251 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1252 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1253 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1254 #define TYPE_HIGH_BOUND_KIND(range_type) \
1255 TYPE_RANGE_DATA(range_type)->high.kind
1256 #define TYPE_LOW_BOUND_KIND(range_type) \
1257 TYPE_RANGE_DATA(range_type)->low.kind
1259 /* Property accessors for the type data location. */
1260 #define TYPE_DATA_LOCATION(thistype) \
1261 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1262 #define TYPE_DATA_LOCATION_BATON(thistype) \
1263 TYPE_DATA_LOCATION (thistype)->data.baton
1264 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1265 TYPE_DATA_LOCATION (thistype)->data.const_val
1266 #define TYPE_DATA_LOCATION_KIND(thistype) \
1267 TYPE_DATA_LOCATION (thistype)->kind
1269 /* Property accessors for the type allocated/associated. */
1270 #define TYPE_ALLOCATED_PROP(thistype) \
1271 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1272 #define TYPE_ASSOCIATED_PROP(thistype) \
1273 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1275 /* Attribute accessors for dynamic properties. */
1276 #define TYPE_DYN_PROP_LIST(thistype) \
1277 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1278 #define TYPE_DYN_PROP_BATON(dynprop) \
1280 #define TYPE_DYN_PROP_ADDR(dynprop) \
1281 dynprop->data.const_val
1282 #define TYPE_DYN_PROP_KIND(dynprop) \
1286 /* Moto-specific stuff for FORTRAN arrays. */
1288 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1289 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1290 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1291 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1293 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1294 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1296 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1297 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1301 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1302 /* Do not call this, use TYPE_SELF_TYPE. */
1303 extern struct type
*internal_type_self_type (struct type
*);
1304 extern void set_type_self_type (struct type
*, struct type
*);
1306 extern int internal_type_vptr_fieldno (struct type
*);
1307 extern void set_type_vptr_fieldno (struct type
*, int);
1308 extern struct type
*internal_type_vptr_basetype (struct type
*);
1309 extern void set_type_vptr_basetype (struct type
*, struct type
*);
1310 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1311 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1313 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1314 #define TYPE_SPECIFIC_FIELD(thistype) \
1315 TYPE_MAIN_TYPE(thistype)->type_specific_field
1316 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1317 where we're trying to print an Ada array using the C language.
1318 In that case, there is no "cplus_stuff", but the C language assumes
1319 that there is. What we do, in that case, is pretend that there is
1320 an implicit one which is the default cplus stuff. */
1321 #define TYPE_CPLUS_SPECIFIC(thistype) \
1322 (!HAVE_CPLUS_STRUCT(thistype) \
1323 ? (struct cplus_struct_type*)&cplus_struct_default \
1324 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1325 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1326 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1327 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1328 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1329 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1330 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1331 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1332 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1333 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1334 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1335 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1336 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1337 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1338 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1339 #define TYPE_CPLUS_REALLY_JAVA(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_java
1341 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1342 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1343 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1345 #define FIELD_TYPE(thisfld) ((thisfld).type)
1346 #define FIELD_NAME(thisfld) ((thisfld).name)
1347 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1348 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1349 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1350 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1351 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1352 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1353 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1354 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1355 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1356 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1357 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1358 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1359 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1360 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1361 #define SET_FIELD_PHYSNAME(thisfld, name) \
1362 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1363 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1364 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1365 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1366 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1367 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1368 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1369 FIELD_DWARF_BLOCK (thisfld) = (addr))
1370 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1371 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1373 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1374 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1375 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1376 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1377 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1378 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1379 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1380 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1381 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1382 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1383 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1384 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1386 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1387 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1388 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1389 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1390 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1391 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1392 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1393 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1394 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1395 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1396 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1397 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1398 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1399 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1400 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1401 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1402 #define TYPE_FIELD_PRIVATE(thistype, n) \
1403 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1404 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1405 #define TYPE_FIELD_PROTECTED(thistype, n) \
1406 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1407 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1408 #define TYPE_FIELD_IGNORE(thistype, n) \
1409 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1410 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1411 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1412 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1413 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1415 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1416 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1417 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1418 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1419 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1421 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1422 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1423 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1424 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1425 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1426 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1428 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1429 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1430 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1431 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1432 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1433 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1434 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1435 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1436 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
1437 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
1438 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
1439 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
1440 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
1441 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1442 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
1443 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1444 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1445 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1446 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1447 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1448 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1450 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1451 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1452 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1453 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1454 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1455 TYPE_TYPEDEF_FIELD (thistype, n).name
1456 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1457 TYPE_TYPEDEF_FIELD (thistype, n).type
1458 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1459 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1461 #define TYPE_IS_OPAQUE(thistype) \
1462 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1463 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1464 && (TYPE_NFIELDS (thistype) == 0) \
1465 && (!HAVE_CPLUS_STRUCT (thistype) \
1466 || TYPE_NFN_FIELDS (thistype) == 0) \
1467 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1469 /* * A helper macro that returns the name of a type or "unnamed type"
1470 if the type has no name. */
1472 #define TYPE_SAFE_NAME(type) \
1473 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1475 /* * A helper macro that returns the name of an error type. If the
1476 type has a name, it is used; otherwise, a default is used. */
1478 #define TYPE_ERROR_NAME(type) \
1479 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1483 /* Integral types. */
1485 /* Implicit size/sign (based on the architecture's ABI). */
1486 struct type
*builtin_void
;
1487 struct type
*builtin_char
;
1488 struct type
*builtin_short
;
1489 struct type
*builtin_int
;
1490 struct type
*builtin_long
;
1491 struct type
*builtin_signed_char
;
1492 struct type
*builtin_unsigned_char
;
1493 struct type
*builtin_unsigned_short
;
1494 struct type
*builtin_unsigned_int
;
1495 struct type
*builtin_unsigned_long
;
1496 struct type
*builtin_float
;
1497 struct type
*builtin_double
;
1498 struct type
*builtin_long_double
;
1499 struct type
*builtin_complex
;
1500 struct type
*builtin_double_complex
;
1501 struct type
*builtin_string
;
1502 struct type
*builtin_bool
;
1503 struct type
*builtin_long_long
;
1504 struct type
*builtin_unsigned_long_long
;
1505 struct type
*builtin_decfloat
;
1506 struct type
*builtin_decdouble
;
1507 struct type
*builtin_declong
;
1509 /* "True" character types.
1510 We use these for the '/c' print format, because c_char is just a
1511 one-byte integral type, which languages less laid back than C
1512 will print as ... well, a one-byte integral type. */
1513 struct type
*builtin_true_char
;
1514 struct type
*builtin_true_unsigned_char
;
1516 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1517 is for when an architecture needs to describe a register that has
1519 struct type
*builtin_int0
;
1520 struct type
*builtin_int8
;
1521 struct type
*builtin_uint8
;
1522 struct type
*builtin_int16
;
1523 struct type
*builtin_uint16
;
1524 struct type
*builtin_int32
;
1525 struct type
*builtin_uint32
;
1526 struct type
*builtin_int64
;
1527 struct type
*builtin_uint64
;
1528 struct type
*builtin_int128
;
1529 struct type
*builtin_uint128
;
1531 /* Wide character types. */
1532 struct type
*builtin_char16
;
1533 struct type
*builtin_char32
;
1535 /* Pointer types. */
1537 /* * `pointer to data' type. Some target platforms use an implicitly
1538 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1539 struct type
*builtin_data_ptr
;
1541 /* * `pointer to function (returning void)' type. Harvard
1542 architectures mean that ABI function and code pointers are not
1543 interconvertible. Similarly, since ANSI, C standards have
1544 explicitly said that pointers to functions and pointers to data
1545 are not interconvertible --- that is, you can't cast a function
1546 pointer to void * and back, and expect to get the same value.
1547 However, all function pointer types are interconvertible, so void
1548 (*) () can server as a generic function pointer. */
1550 struct type
*builtin_func_ptr
;
1552 /* * `function returning pointer to function (returning void)' type.
1553 The final void return type is not significant for it. */
1555 struct type
*builtin_func_func
;
1557 /* Special-purpose types. */
1559 /* * This type is used to represent a GDB internal function. */
1561 struct type
*internal_fn
;
1563 /* * This type is used to represent an xmethod. */
1564 struct type
*xmethod
;
1567 /* * Return the type table for the specified architecture. */
1569 extern const struct builtin_type
*builtin_type (struct gdbarch
*gdbarch
);
1571 /* * Per-objfile types used by symbol readers. */
1575 /* Basic types based on the objfile architecture. */
1576 struct type
*builtin_void
;
1577 struct type
*builtin_char
;
1578 struct type
*builtin_short
;
1579 struct type
*builtin_int
;
1580 struct type
*builtin_long
;
1581 struct type
*builtin_long_long
;
1582 struct type
*builtin_signed_char
;
1583 struct type
*builtin_unsigned_char
;
1584 struct type
*builtin_unsigned_short
;
1585 struct type
*builtin_unsigned_int
;
1586 struct type
*builtin_unsigned_long
;
1587 struct type
*builtin_unsigned_long_long
;
1588 struct type
*builtin_float
;
1589 struct type
*builtin_double
;
1590 struct type
*builtin_long_double
;
1592 /* * This type is used to represent symbol addresses. */
1593 struct type
*builtin_core_addr
;
1595 /* * This type represents a type that was unrecognized in symbol
1597 struct type
*builtin_error
;
1599 /* * Types used for symbols with no debug information. */
1600 struct type
*nodebug_text_symbol
;
1601 struct type
*nodebug_text_gnu_ifunc_symbol
;
1602 struct type
*nodebug_got_plt_symbol
;
1603 struct type
*nodebug_data_symbol
;
1604 struct type
*nodebug_unknown_symbol
;
1605 struct type
*nodebug_tls_symbol
;
1608 /* * Return the type table for the specified objfile. */
1610 extern const struct objfile_type
*objfile_type (struct objfile
*objfile
);
1612 /* Explicit floating-point formats. See "floatformat.h". */
1613 extern const struct floatformat
*floatformats_ieee_half
[BFD_ENDIAN_UNKNOWN
];
1614 extern const struct floatformat
*floatformats_ieee_single
[BFD_ENDIAN_UNKNOWN
];
1615 extern const struct floatformat
*floatformats_ieee_double
[BFD_ENDIAN_UNKNOWN
];
1616 extern const struct floatformat
*floatformats_ieee_double_littlebyte_bigword
[BFD_ENDIAN_UNKNOWN
];
1617 extern const struct floatformat
*floatformats_i387_ext
[BFD_ENDIAN_UNKNOWN
];
1618 extern const struct floatformat
*floatformats_m68881_ext
[BFD_ENDIAN_UNKNOWN
];
1619 extern const struct floatformat
*floatformats_arm_ext
[BFD_ENDIAN_UNKNOWN
];
1620 extern const struct floatformat
*floatformats_ia64_spill
[BFD_ENDIAN_UNKNOWN
];
1621 extern const struct floatformat
*floatformats_ia64_quad
[BFD_ENDIAN_UNKNOWN
];
1622 extern const struct floatformat
*floatformats_vax_f
[BFD_ENDIAN_UNKNOWN
];
1623 extern const struct floatformat
*floatformats_vax_d
[BFD_ENDIAN_UNKNOWN
];
1624 extern const struct floatformat
*floatformats_ibm_long_double
[BFD_ENDIAN_UNKNOWN
];
1627 /* * Allocate space for storing data associated with a particular
1628 type. We ensure that the space is allocated using the same
1629 mechanism that was used to allocate the space for the type
1630 structure itself. I.e. if the type is on an objfile's
1631 objfile_obstack, then the space for data associated with that type
1632 will also be allocated on the objfile_obstack. If the type is not
1633 associated with any particular objfile (such as builtin types),
1634 then the data space will be allocated with xmalloc, the same as for
1635 the type structure. */
1637 #define TYPE_ALLOC(t,size) \
1638 (TYPE_OBJFILE_OWNED (t) \
1639 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1642 #define TYPE_ZALLOC(t,size) \
1643 (TYPE_OBJFILE_OWNED (t) \
1644 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1648 /* Use alloc_type to allocate a type owned by an objfile. Use
1649 alloc_type_arch to allocate a type owned by an architecture. Use
1650 alloc_type_copy to allocate a type with the same owner as a
1651 pre-existing template type, no matter whether objfile or
1653 extern struct type
*alloc_type (struct objfile
*);
1654 extern struct type
*alloc_type_arch (struct gdbarch
*);
1655 extern struct type
*alloc_type_copy (const struct type
*);
1657 /* * Return the type's architecture. For types owned by an
1658 architecture, that architecture is returned. For types owned by an
1659 objfile, that objfile's architecture is returned. */
1661 extern struct gdbarch
*get_type_arch (const struct type
*);
1663 /* * This returns the target type (or NULL) of TYPE, also skipping
1666 extern struct type
*get_target_type (struct type
*type
);
1668 /* Return the equivalent of TYPE_LENGTH, but in number of target
1669 addressable memory units of the associated gdbarch instead of bytes. */
1671 extern unsigned int type_length_units (struct type
*type
);
1673 /* * Helper function to construct objfile-owned types. */
1675 extern struct type
*init_type (struct objfile
*, enum type_code
, int,
1677 extern struct type
*init_integer_type (struct objfile
*, int, int,
1679 extern struct type
*init_character_type (struct objfile
*, int, int,
1681 extern struct type
*init_boolean_type (struct objfile
*, int, int,
1683 extern struct type
*init_float_type (struct objfile
*, int, const char *,
1684 const struct floatformat
**);
1685 extern struct type
*init_decfloat_type (struct objfile
*, int, const char *);
1686 extern struct type
*init_complex_type (struct objfile
*, const char *,
1688 extern struct type
*init_pointer_type (struct objfile
*, int, const char *,
1691 /* Helper functions to construct architecture-owned types. */
1692 extern struct type
*arch_type (struct gdbarch
*, enum type_code
, int,
1694 extern struct type
*arch_integer_type (struct gdbarch
*, int, int,
1696 extern struct type
*arch_character_type (struct gdbarch
*, int, int,
1698 extern struct type
*arch_boolean_type (struct gdbarch
*, int, int,
1700 extern struct type
*arch_float_type (struct gdbarch
*, int, const char *,
1701 const struct floatformat
**);
1702 extern struct type
*arch_decfloat_type (struct gdbarch
*, int, const char *);
1703 extern struct type
*arch_complex_type (struct gdbarch
*, const char *,
1705 extern struct type
*arch_pointer_type (struct gdbarch
*, int, const char *,
1708 /* Helper functions to construct a struct or record type. An
1709 initially empty type is created using arch_composite_type().
1710 Fields are then added using append_composite_type_field*(). A union
1711 type has its size set to the largest field. A struct type has each
1712 field packed against the previous. */
1714 extern struct type
*arch_composite_type (struct gdbarch
*gdbarch
,
1715 const char *name
, enum type_code code
);
1716 extern void append_composite_type_field (struct type
*t
, const char *name
,
1717 struct type
*field
);
1718 extern void append_composite_type_field_aligned (struct type
*t
,
1722 struct field
*append_composite_type_field_raw (struct type
*t
, const char *name
,
1723 struct type
*field
);
1725 /* Helper functions to construct a bit flags type. An initially empty
1726 type is created using arch_flag_type(). Flags are then added using
1727 append_flag_type_field() and append_flag_type_flag(). */
1728 extern struct type
*arch_flags_type (struct gdbarch
*gdbarch
,
1729 const char *name
, int length
);
1730 extern void append_flags_type_field (struct type
*type
,
1731 int start_bitpos
, int nr_bits
,
1732 struct type
*field_type
, const char *name
);
1733 extern void append_flags_type_flag (struct type
*type
, int bitpos
,
1736 extern void make_vector_type (struct type
*array_type
);
1737 extern struct type
*init_vector_type (struct type
*elt_type
, int n
);
1739 extern struct type
*lookup_reference_type (struct type
*);
1741 extern struct type
*make_reference_type (struct type
*, struct type
**);
1743 extern struct type
*make_cv_type (int, int, struct type
*, struct type
**);
1745 extern struct type
*make_restrict_type (struct type
*);
1747 extern struct type
*make_unqualified_type (struct type
*);
1749 extern struct type
*make_atomic_type (struct type
*);
1751 extern void replace_type (struct type
*, struct type
*);
1753 extern int address_space_name_to_int (struct gdbarch
*, char *);
1755 extern const char *address_space_int_to_name (struct gdbarch
*, int);
1757 extern struct type
*make_type_with_address_space (struct type
*type
,
1758 int space_identifier
);
1760 extern struct type
*lookup_memberptr_type (struct type
*, struct type
*);
1762 extern struct type
*lookup_methodptr_type (struct type
*);
1764 extern void smash_to_method_type (struct type
*type
, struct type
*self_type
,
1765 struct type
*to_type
, struct field
*args
,
1766 int nargs
, int varargs
);
1768 extern void smash_to_memberptr_type (struct type
*, struct type
*,
1771 extern void smash_to_methodptr_type (struct type
*, struct type
*);
1773 extern struct type
*allocate_stub_method (struct type
*);
1775 extern const char *type_name_no_tag (const struct type
*);
1777 extern const char *type_name_no_tag_or_error (struct type
*type
);
1779 extern struct type
*lookup_struct_elt_type (struct type
*, const char *, int);
1781 extern struct type
*make_pointer_type (struct type
*, struct type
**);
1783 extern struct type
*lookup_pointer_type (struct type
*);
1785 extern struct type
*make_function_type (struct type
*, struct type
**);
1787 extern struct type
*lookup_function_type (struct type
*);
1789 extern struct type
*lookup_function_type_with_arguments (struct type
*,
1793 extern struct type
*create_static_range_type (struct type
*, struct type
*,
1797 extern struct type
*create_array_type_with_stride
1798 (struct type
*, struct type
*, struct type
*, unsigned int);
1800 extern struct type
*create_range_type (struct type
*, struct type
*,
1801 const struct dynamic_prop
*,
1802 const struct dynamic_prop
*);
1804 extern struct type
*create_array_type (struct type
*, struct type
*,
1807 extern struct type
*lookup_array_range_type (struct type
*, LONGEST
, LONGEST
);
1809 extern struct type
*create_string_type (struct type
*, struct type
*,
1811 extern struct type
*lookup_string_range_type (struct type
*, LONGEST
, LONGEST
);
1813 extern struct type
*create_set_type (struct type
*, struct type
*);
1815 extern struct type
*lookup_unsigned_typename (const struct language_defn
*,
1816 struct gdbarch
*, const char *);
1818 extern struct type
*lookup_signed_typename (const struct language_defn
*,
1819 struct gdbarch
*, const char *);
1821 extern void get_unsigned_type_max (struct type
*, ULONGEST
*);
1823 extern void get_signed_type_minmax (struct type
*, LONGEST
*, LONGEST
*);
1825 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1826 ADDR specifies the location of the variable the type is bound to.
1827 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1828 static properties is returned. */
1829 extern struct type
*resolve_dynamic_type (struct type
*type
,
1830 const gdb_byte
*valaddr
,
1833 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1834 extern int is_dynamic_type (struct type
*type
);
1836 /* * Return the dynamic property of the requested KIND from TYPE's
1837 list of dynamic properties. */
1838 extern struct dynamic_prop
*get_dyn_prop
1839 (enum dynamic_prop_node_kind kind
, const struct type
*type
);
1841 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1842 property to the given TYPE.
1844 This function assumes that TYPE is objfile-owned, and that OBJFILE
1845 is the TYPE's objfile. */
1846 extern void add_dyn_prop
1847 (enum dynamic_prop_node_kind kind
, struct dynamic_prop prop
,
1848 struct type
*type
, struct objfile
*objfile
);
1850 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind
,
1853 extern struct type
*check_typedef (struct type
*);
1855 extern void check_stub_method_group (struct type
*, int);
1857 extern char *gdb_mangle_name (struct type
*, int, int);
1859 extern struct type
*lookup_typename (const struct language_defn
*,
1860 struct gdbarch
*, const char *,
1861 const struct block
*, int);
1863 extern struct type
*lookup_template_type (char *, struct type
*,
1864 const struct block
*);
1866 extern int get_vptr_fieldno (struct type
*, struct type
**);
1868 extern int get_discrete_bounds (struct type
*, LONGEST
*, LONGEST
*);
1870 extern int get_array_bounds (struct type
*type
, LONGEST
*low_bound
,
1871 LONGEST
*high_bound
);
1873 extern int discrete_position (struct type
*type
, LONGEST val
, LONGEST
*pos
);
1875 extern int class_types_same_p (const struct type
*, const struct type
*);
1877 extern int is_ancestor (struct type
*, struct type
*);
1879 extern int is_public_ancestor (struct type
*, struct type
*);
1881 extern int is_unique_ancestor (struct type
*, struct value
*);
1883 /* Overload resolution */
1885 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1887 /* * Badness if parameter list length doesn't match arg list length. */
1888 extern const struct rank LENGTH_MISMATCH_BADNESS
;
1890 /* * Dummy badness value for nonexistent parameter positions. */
1891 extern const struct rank TOO_FEW_PARAMS_BADNESS
;
1892 /* * Badness if no conversion among types. */
1893 extern const struct rank INCOMPATIBLE_TYPE_BADNESS
;
1895 /* * Badness of an exact match. */
1896 extern const struct rank EXACT_MATCH_BADNESS
;
1898 /* * Badness of integral promotion. */
1899 extern const struct rank INTEGER_PROMOTION_BADNESS
;
1900 /* * Badness of floating promotion. */
1901 extern const struct rank FLOAT_PROMOTION_BADNESS
;
1902 /* * Badness of converting a derived class pointer
1903 to a base class pointer. */
1904 extern const struct rank BASE_PTR_CONVERSION_BADNESS
;
1905 /* * Badness of integral conversion. */
1906 extern const struct rank INTEGER_CONVERSION_BADNESS
;
1907 /* * Badness of floating conversion. */
1908 extern const struct rank FLOAT_CONVERSION_BADNESS
;
1909 /* * Badness of integer<->floating conversions. */
1910 extern const struct rank INT_FLOAT_CONVERSION_BADNESS
;
1911 /* * Badness of conversion of pointer to void pointer. */
1912 extern const struct rank VOID_PTR_CONVERSION_BADNESS
;
1913 /* * Badness of conversion to boolean. */
1914 extern const struct rank BOOL_CONVERSION_BADNESS
;
1915 /* * Badness of converting derived to base class. */
1916 extern const struct rank BASE_CONVERSION_BADNESS
;
1917 /* * Badness of converting from non-reference to reference. */
1918 extern const struct rank REFERENCE_CONVERSION_BADNESS
;
1919 /* * Badness of converting integer 0 to NULL pointer. */
1920 extern const struct rank NULL_POINTER_CONVERSION
;
1922 /* Non-standard conversions allowed by the debugger */
1924 /* * Converting a pointer to an int is usually OK. */
1925 extern const struct rank NS_POINTER_CONVERSION_BADNESS
;
1927 /* * Badness of converting a (non-zero) integer constant
1929 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS
;
1931 extern struct rank
sum_ranks (struct rank a
, struct rank b
);
1932 extern int compare_ranks (struct rank a
, struct rank b
);
1934 extern int compare_badness (struct badness_vector
*, struct badness_vector
*);
1936 extern struct badness_vector
*rank_function (struct type
**, int,
1937 struct value
**, int);
1939 extern struct rank
rank_one_type (struct type
*, struct type
*,
1942 extern void recursive_dump_type (struct type
*, int);
1944 extern int field_is_static (struct field
*);
1948 extern void print_scalar_formatted (const gdb_byte
*, struct type
*,
1949 const struct value_print_options
*,
1950 int, struct ui_file
*);
1952 extern int can_dereference (struct type
*);
1954 extern int is_integral_type (struct type
*);
1956 extern int is_scalar_type (struct type
*type
);
1958 extern int is_scalar_type_recursive (struct type
*);
1960 extern int class_or_union_p (const struct type
*);
1962 extern void maintenance_print_type (char *, int);
1964 extern htab_t
create_copied_types_hash (struct objfile
*objfile
);
1966 extern struct type
*copy_type_recursive (struct objfile
*objfile
,
1968 htab_t copied_types
);
1970 extern struct type
*copy_type (const struct type
*type
);
1972 extern int types_equal (struct type
*, struct type
*);
1974 extern int types_deeply_equal (struct type
*, struct type
*);
1976 extern int type_not_allocated (const struct type
*type
);
1978 extern int type_not_associated (const struct type
*type
);
1980 #endif /* GDBTYPES_H */