2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2017 Free Software Foundation, Inc.
6 Contributed by Cygnus Support, using pieces from other GDB modules.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #if !defined (GDBTYPES_H)
26 /* * \page gdbtypes GDB Types
28 GDB represents all the different kinds of types in programming
29 languages using a common representation defined in gdbtypes.h.
31 The main data structure is main_type; it consists of a code (such
32 as #TYPE_CODE_ENUM for enumeration types), a number of
33 generally-useful fields such as the printable name, and finally a
34 field main_type::type_specific that is a union of info specific to
35 particular languages or other special cases (such as calling
38 The available type codes are defined in enum #type_code. The enum
39 includes codes both for types that are common across a variety
40 of languages, and for types that are language-specific.
42 Most accesses to type fields go through macros such as
43 #TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are
44 written such that they can be used as both rvalues and lvalues.
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_RVALUE_REF
, /**< C++ rvalue reference types */
165 TYPE_CODE_CHAR
, /**< *real* character type */
167 /* * Boolean type. 0 is false, 1 is true, and other values are
168 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
172 TYPE_CODE_COMPLEX
, /**< Complex float */
176 TYPE_CODE_NAMESPACE
, /**< C++ namespace. */
178 TYPE_CODE_DECFLOAT
, /**< Decimal floating point. */
180 TYPE_CODE_MODULE
, /**< Fortran module. */
182 /* * Internal function type. */
183 TYPE_CODE_INTERNAL_FUNCTION
,
185 /* * Methods implemented in extension languages. */
189 /* * Some bits for the type's instance_flags word. See the macros
190 below for documentation on each bit. */
192 enum type_instance_flag_value
194 TYPE_INSTANCE_FLAG_CONST
= (1 << 0),
195 TYPE_INSTANCE_FLAG_VOLATILE
= (1 << 1),
196 TYPE_INSTANCE_FLAG_CODE_SPACE
= (1 << 2),
197 TYPE_INSTANCE_FLAG_DATA_SPACE
= (1 << 3),
198 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1
= (1 << 4),
199 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2
= (1 << 5),
200 TYPE_INSTANCE_FLAG_NOTTEXT
= (1 << 6),
201 TYPE_INSTANCE_FLAG_RESTRICT
= (1 << 7),
202 TYPE_INSTANCE_FLAG_ATOMIC
= (1 << 8)
205 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
206 the type is signed (unless TYPE_NOSIGN (below) is set). */
208 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
210 /* * No sign for this type. In C++, "char", "signed char", and
211 "unsigned char" are distinct types; so we need an extra flag to
212 indicate the absence of a sign! */
214 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
216 /* * This appears in a type's flags word if it is a stub type (e.g.,
217 if someone referenced a type that wasn't defined in a source file
218 via (struct sir_not_appearing_in_this_film *)). */
220 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
222 /* * The target type of this type is a stub type, and this type needs
223 to be updated if it gets un-stubbed in check_typedef. Used for
224 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
225 based on the TYPE_LENGTH of the target type. Also, set for
226 TYPE_CODE_TYPEDEF. */
228 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
230 /* * Static type. If this is set, the corresponding type had
232 Note: This may be unnecessary, since static data members
233 are indicated by other means (bitpos == -1). */
235 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
237 /* * This is a function type which appears to have a prototype. We
238 need this for function calls in order to tell us if it's necessary
239 to coerce the args, or to just do the standard conversions. This
240 is used with a short field. */
242 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
244 /* * This flag is used to indicate that processing for this type
247 (Mostly intended for HP platforms, where class methods, for
248 instance, can be encountered before their classes in the debug
249 info; the incomplete type has to be marked so that the class and
250 the method can be assigned correct types.) */
252 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
254 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
257 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
259 /* * Identify a vector type. Gcc is handling this by adding an extra
260 attribute to the array type. We slurp that in as a new flag of a
261 type. This is used only in dwarf2read.c. */
262 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
264 /* * The debugging formats (especially STABS) do not contain enough
265 information to represent all Ada types---especially those whose
266 size depends on dynamic quantities. Therefore, the GNAT Ada
267 compiler includes extra information in the form of additional type
268 definitions connected by naming conventions. This flag indicates
269 that the type is an ordinary (unencoded) GDB type that has been
270 created from the necessary run-time information, and does not need
271 further interpretation. Optionally marks ordinary, fixed-size GDB
274 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
276 /* * This debug target supports TYPE_STUB(t). In the unsupported case
277 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
278 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
279 guessed the TYPE_STUB(t) value (see dwarfread.c). */
281 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
283 /* * Not textual. By default, GDB treats all single byte integers as
284 characters (or elements of strings) unless this flag is set. */
286 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
288 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
289 address is returned by this function call. TYPE_TARGET_TYPE
290 determines the final returned function type to be presented to
293 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
295 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
296 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
297 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
299 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
300 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
301 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
303 /* * True if this type was declared using the "class" keyword. This is
304 only valid for C++ structure and enum types. If false, a structure
305 was declared as a "struct"; if true it was declared "class". For
306 enum types, this is true when "enum class" or "enum struct" was
307 used to declare the type.. */
309 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
311 /* * True if this type is a "flag" enum. A flag enum is one where all
312 the values are pairwise disjoint when "and"ed together. This
313 affects how enum values are printed. */
315 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
317 /* * Constant type. If this is set, the corresponding type has a
320 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
322 /* * Volatile type. If this is set, the corresponding type has a
323 volatile modifier. */
325 #define TYPE_VOLATILE(t) \
326 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
328 /* * Restrict type. If this is set, the corresponding type has a
329 restrict modifier. */
331 #define TYPE_RESTRICT(t) \
332 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT)
334 /* * Atomic type. If this is set, the corresponding type has an
337 #define TYPE_ATOMIC(t) \
338 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC)
340 /* * True if this type represents either an lvalue or lvalue reference type. */
342 #define TYPE_IS_REFERENCE(t) \
343 (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
345 /* * Instruction-space delimited type. This is for Harvard architectures
346 which have separate instruction and data address spaces (and perhaps
349 GDB usually defines a flat address space that is a superset of the
350 architecture's two (or more) address spaces, but this is an extension
351 of the architecture's model.
353 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
354 resides in instruction memory, even if its address (in the extended
355 flat address space) does not reflect this.
357 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
358 corresponding type resides in the data memory space, even if
359 this is not indicated by its (flat address space) address.
361 If neither flag is set, the default space for functions / methods
362 is instruction space, and for data objects is data memory. */
364 #define TYPE_CODE_SPACE(t) \
365 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
367 #define TYPE_DATA_SPACE(t) \
368 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
370 /* * Address class flags. Some environments provide for pointers
371 whose size is different from that of a normal pointer or address
372 types where the bits are interpreted differently than normal
373 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
374 target specific ways to represent these different types of address
377 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
378 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
379 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
380 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
381 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
382 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
383 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
384 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
386 enum dynamic_prop_kind
388 PROP_UNDEFINED
, /* Not defined. */
389 PROP_CONST
, /* Constant. */
390 PROP_ADDR_OFFSET
, /* Address offset. */
391 PROP_LOCEXPR
, /* Location expression. */
392 PROP_LOCLIST
/* Location list. */
395 union dynamic_prop_data
397 /* Storage for constant property. */
401 /* Storage for dynamic property. */
406 /* * Used to store a dynamic property. */
410 /* Determine which field of the union dynamic_prop.data is used. */
411 enum dynamic_prop_kind kind
;
413 /* Storage for dynamic or static value. */
414 union dynamic_prop_data data
;
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. */
433 /* * List for dynamic type attributes. */
434 struct dynamic_prop_list
436 /* The kind of dynamic prop in this node. */
437 enum dynamic_prop_node_kind prop_kind
;
439 /* The dynamic property itself. */
440 struct dynamic_prop prop
;
442 /* A pointer to the next dynamic property. */
443 struct dynamic_prop_list
*next
;
446 /* * Determine which field of the union main_type.fields[x].loc is
451 FIELD_LOC_KIND_BITPOS
, /**< bitpos */
452 FIELD_LOC_KIND_ENUMVAL
, /**< enumval */
453 FIELD_LOC_KIND_PHYSADDR
, /**< physaddr */
454 FIELD_LOC_KIND_PHYSNAME
, /**< physname */
455 FIELD_LOC_KIND_DWARF_BLOCK
/**< dwarf_block */
458 /* * A discriminant to determine which field in the
459 main_type.type_specific union is being used, if any.
461 For types such as TYPE_CODE_FLT, the use of this
462 discriminant is really redundant, as we know from the type code
463 which field is going to be used. As such, it would be possible to
464 reduce the size of this enum in order to save a bit or two for
465 other fields of struct main_type. But, since we still have extra
466 room , and for the sake of clarity and consistency, we treat all fields
467 of the union the same way. */
469 enum type_specific_kind
472 TYPE_SPECIFIC_CPLUS_STUFF
,
473 TYPE_SPECIFIC_GNAT_STUFF
,
474 TYPE_SPECIFIC_FLOATFORMAT
,
475 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
477 TYPE_SPECIFIC_SELF_TYPE
482 struct objfile
*objfile
;
483 struct gdbarch
*gdbarch
;
488 /* * Position of this field, counting in bits from start of
489 containing structure. For gdbarch_bits_big_endian=1
490 targets, it is the bit offset to the MSB. For
491 gdbarch_bits_big_endian=0 targets, it is the bit offset to
499 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
500 physaddr is the location (in the target) of the static
501 field. Otherwise, physname is the mangled label of the
505 const char *physname
;
507 /* * The field location can be computed by evaluating the
508 following DWARF block. Its DATA is allocated on
509 objfile_obstack - no CU load is needed to access it. */
511 struct dwarf2_locexpr_baton
*dwarf_block
;
516 union field_location loc
;
518 /* * For a function or member type, this is 1 if the argument is
519 marked artificial. Artificial arguments should not be shown
520 to the user. For TYPE_CODE_RANGE it is set if the specific
521 bound is not defined. */
523 unsigned int artificial
: 1;
525 /* * Discriminant for union field_location. */
527 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
529 /* * Size of this field, in bits, or zero if not packed.
530 If non-zero in an array type, indicates the element size in
531 bits (used only in Ada at the moment).
532 For an unpacked field, the field's type's length
533 says how many bytes the field occupies. */
535 unsigned int bitsize
: 28;
537 /* * In a struct or union type, type of this field.
538 - In a function or member type, type of this argument.
539 - In an array type, the domain-type of the array. */
543 /* * Name of field, value or argument.
544 NULL for range bounds, array domains, and member function
552 /* * Low bound of range. */
554 struct dynamic_prop low
;
556 /* * High bound of range. */
558 struct dynamic_prop high
;
560 /* True if HIGH range bound contains the number of elements in the
561 subrange. This affects how the final hight bound is computed. */
563 int flag_upper_bound_is_count
: 1;
565 /* True if LOW or/and HIGH are resolved into a static bound from
568 int flag_bound_evaluated
: 1;
573 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
574 point to cplus_struct_default, a default static instance of a
575 struct cplus_struct_type. */
577 struct cplus_struct_type
*cplus_stuff
;
579 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
580 provides additional information. */
582 struct gnat_aux_type
*gnat_stuff
;
584 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
585 floatformat objects that describe the floating-point value
586 that resides within the type. The first is for big endian
587 targets and the second is for little endian targets. */
589 const struct floatformat
**floatformat
;
591 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
593 struct func_type
*func_stuff
;
595 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
596 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
599 struct type
*self_type
;
602 /* * Main structure representing a type in GDB.
604 This structure is space-critical. Its layout has been tweaked to
605 reduce the space used. */
609 /* * Code for kind of type. */
611 ENUM_BITFIELD(type_code
) code
: 8;
613 /* * Flags about this type. These fields appear at this location
614 because they packs nicely here. See the TYPE_* macros for
615 documentation about these fields. */
617 unsigned int flag_unsigned
: 1;
618 unsigned int flag_nosign
: 1;
619 unsigned int flag_stub
: 1;
620 unsigned int flag_target_stub
: 1;
621 unsigned int flag_static
: 1;
622 unsigned int flag_prototyped
: 1;
623 unsigned int flag_incomplete
: 1;
624 unsigned int flag_varargs
: 1;
625 unsigned int flag_vector
: 1;
626 unsigned int flag_stub_supported
: 1;
627 unsigned int flag_gnu_ifunc
: 1;
628 unsigned int flag_fixed_instance
: 1;
629 unsigned int flag_objfile_owned
: 1;
631 /* * True if this type was declared with "class" rather than
634 unsigned int flag_declared_class
: 1;
636 /* * True if this is an enum type with disjoint values. This
637 affects how the enum is printed. */
639 unsigned int flag_flag_enum
: 1;
641 /* * A discriminant telling us which field of the type_specific
642 union is being used for this type, if any. */
644 ENUM_BITFIELD(type_specific_kind
) type_specific_field
: 3;
646 /* * Number of fields described for this type. This field appears
647 at this location because it packs nicely here. */
651 /* * Name of this type, or NULL if none.
653 This is used for printing only, except by poorly designed C++
654 code. For looking up a name, look for a symbol in the
655 VAR_DOMAIN. This is generally allocated in the objfile's
656 obstack. However coffread.c uses malloc. */
660 /* * Tag name for this type, or NULL if none. This means that the
661 name of the type consists of a keyword followed by the tag name.
662 Which keyword is determined by the type code ("struct" for
663 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
664 languages with this feature.
666 This is used for printing only, except by poorly designed C++ code.
667 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
668 One more legitimate use is that if TYPE_STUB is set, this is
669 the name to use to look for definitions in other files. */
671 const char *tag_name
;
673 /* * Every type is now associated with a particular objfile, and the
674 type is allocated on the objfile_obstack for that objfile. One
675 problem however, is that there are times when gdb allocates new
676 types while it is not in the process of reading symbols from a
677 particular objfile. Fortunately, these happen when the type
678 being created is a derived type of an existing type, such as in
679 lookup_pointer_type(). So we can just allocate the new type
680 using the same objfile as the existing type, but to do this we
681 need a backpointer to the objfile from the existing type. Yes
682 this is somewhat ugly, but without major overhaul of the internal
683 type system, it can't be avoided for now. */
685 union type_owner owner
;
687 /* * For a pointer type, describes the type of object pointed to.
688 - For an array type, describes the type of the elements.
689 - For a function or method type, describes the type of the return value.
690 - For a range type, describes the type of the full range.
691 - For a complex type, describes the type of each coordinate.
692 - For a special record or union type encoding a dynamic-sized type
693 in GNAT, a memoized pointer to a corresponding static version of
695 - Unused otherwise. */
697 struct type
*target_type
;
699 /* * For structure and union types, a description of each field.
700 For set and pascal array types, there is one "field",
701 whose type is the domain type of the set or array.
702 For range types, there are two "fields",
703 the minimum and maximum values (both inclusive).
704 For enum types, each possible value is described by one "field".
705 For a function or method type, a "field" for each parameter.
706 For C++ classes, there is one field for each base class (if it is
707 a derived class) plus one field for each class data member. Member
708 functions are recorded elsewhere.
710 Using a pointer to a separate array of fields
711 allows all types to have the same size, which is useful
712 because we can allocate the space for a type before
713 we know what to put in it. */
717 struct field
*fields
;
719 /* * Union member used for range types. */
721 struct range_bounds
*bounds
;
725 /* * Slot to point to additional language-specific fields of this
728 union type_specific type_specific
;
730 /* * Contains all dynamic type properties. */
731 struct dynamic_prop_list
*dyn_prop_list
;
734 /* * A ``struct type'' describes a particular instance of a type, with
735 some particular qualification. */
739 /* * Type that is a pointer to this type.
740 NULL if no such pointer-to type is known yet.
741 The debugger may add the address of such a type
742 if it has to construct one later. */
744 struct type
*pointer_type
;
746 /* * C++: also need a reference type. */
748 struct type
*reference_type
;
750 /* * A C++ rvalue reference type added in C++11. */
752 struct type
*rvalue_reference_type
;
754 /* * Variant chain. This points to a type that differs from this
755 one only in qualifiers and length. Currently, the possible
756 qualifiers are const, volatile, code-space, data-space, and
757 address class. The length may differ only when one of the
758 address class flags are set. The variants are linked in a
759 circular ring and share MAIN_TYPE. */
763 /* * Flags specific to this instance of the type, indicating where
766 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
767 binary or-ed with the target type, with a special case for
768 address class and space class. For example if this typedef does
769 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
770 instance flags are completely inherited from the target type. No
771 qualifiers can be cleared by the typedef. See also
775 /* * Length of storage for a value of this type. The value is the
776 expression in host bytes of what sizeof(type) would return. This
777 size includes padding. For example, an i386 extended-precision
778 floating point value really only occupies ten bytes, but most
779 ABI's declare its size to be 12 bytes, to preserve alignment.
780 A `struct type' representing such a floating-point type would
781 have a `length' value of 12, even though the last two bytes are
784 Since this field is expressed in host bytes, its value is appropriate
785 to pass to memcpy and such (it is assumed that GDB itself always runs
786 on an 8-bits addressable architecture). However, when using it for
787 target address arithmetic (e.g. adding it to a target address), the
788 type_length_units function should be used in order to get the length
789 expressed in target addressable memory units. */
793 /* * Core type, shared by a group of qualified types. */
795 struct main_type
*main_type
;
798 #define NULL_TYPE ((struct type *) 0)
803 /* * The overloaded name.
804 This is generally allocated in the objfile's obstack.
805 However stabsread.c sometimes uses malloc. */
809 /* * The number of methods with this name. */
813 /* * The list of methods. */
815 struct fn_field
*fn_fields
;
822 /* * If is_stub is clear, this is the mangled name which we can look
823 up to find the address of the method (FIXME: it would be cleaner
824 to have a pointer to the struct symbol here instead).
826 If is_stub is set, this is the portion of the mangled name which
827 specifies the arguments. For example, "ii", if there are two int
828 arguments, or "" if there are no arguments. See gdb_mangle_name
829 for the conversion from this format to the one used if is_stub is
832 const char *physname
;
834 /* * The function type for the method.
836 (This comment used to say "The return value of the method", but
837 that's wrong. The function type is expected here, i.e. something
838 with TYPE_CODE_METHOD, and *not* the return-value type). */
842 /* * For virtual functions. First baseclass that defines this
845 struct type
*fcontext
;
849 unsigned int is_const
:1;
850 unsigned int is_volatile
:1;
851 unsigned int is_private
:1;
852 unsigned int is_protected
:1;
853 unsigned int is_public
:1;
854 unsigned int is_abstract
:1;
855 unsigned int is_static
:1;
856 unsigned int is_final
:1;
857 unsigned int is_synchronized
:1;
858 unsigned int is_native
:1;
859 unsigned int is_artificial
:1;
861 /* * A stub method only has some fields valid (but they are enough
862 to reconstruct the rest of the fields). */
864 unsigned int is_stub
:1;
866 /* * True if this function is a constructor, false otherwise. */
868 unsigned int is_constructor
: 1;
872 unsigned int dummy
:3;
874 /* * Index into that baseclass's virtual function table, minus 2;
875 else if static: VOFFSET_STATIC; else: 0. */
877 unsigned int voffset
:16;
879 #define VOFFSET_STATIC 1
885 /* * Unqualified name to be prefixed by owning class qualified
890 /* * Type this typedef named NAME represents. */
895 /* * C++ language-specific information for TYPE_CODE_STRUCT and
896 TYPE_CODE_UNION nodes. */
898 struct cplus_struct_type
900 /* * Number of base classes this type derives from. The
901 baseclasses are stored in the first N_BASECLASSES fields
902 (i.e. the `fields' field of the struct type). The only fields
903 of struct field that are used are: type, name, loc.bitpos. */
907 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
908 All access to this field must be through TYPE_VPTR_FIELDNO as one
909 thing it does is check whether the field has been initialized.
910 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
911 which for portability reasons doesn't initialize this field.
912 TYPE_VPTR_FIELDNO returns -1 for this case.
914 If -1, we were unable to find the virtual function table pointer in
915 initial symbol reading, and get_vptr_fieldno should be called to find
916 it if possible. get_vptr_fieldno will update this field if possible.
917 Otherwise the value is left at -1.
919 Unused if this type does not have virtual functions. */
923 /* * Number of methods with unique names. All overloaded methods
924 with the same name count only once. */
928 /* * Number of template arguments. */
930 unsigned short n_template_arguments
;
932 /* * One if this struct is a dynamic class, as defined by the
933 Itanium C++ ABI: if it requires a virtual table pointer,
934 because it or any of its base classes have one or more virtual
935 member functions or virtual base classes. Minus one if not
936 dynamic. Zero if not yet computed. */
940 /* * The base class which defined the virtual function table pointer. */
942 struct type
*vptr_basetype
;
944 /* * For derived classes, the number of base classes is given by
945 n_baseclasses and virtual_field_bits is a bit vector containing
946 one bit per base class. If the base class is virtual, the
947 corresponding bit will be set.
952 class C : public B, public virtual A {};
954 B is a baseclass of C; A is a virtual baseclass for C.
955 This is a C++ 2.0 language feature. */
957 B_TYPE
*virtual_field_bits
;
959 /* * For classes with private fields, the number of fields is
960 given by nfields and private_field_bits is a bit vector
961 containing one bit per field.
963 If the field is private, the corresponding bit will be set. */
965 B_TYPE
*private_field_bits
;
967 /* * For classes with protected fields, the number of fields is
968 given by nfields and protected_field_bits is a bit vector
969 containing one bit per field.
971 If the field is private, the corresponding bit will be set. */
973 B_TYPE
*protected_field_bits
;
975 /* * For classes with fields to be ignored, either this is
976 optimized out or this field has length 0. */
978 B_TYPE
*ignore_field_bits
;
980 /* * For classes, structures, and unions, a description of each
981 field, which consists of an overloaded name, followed by the
982 types of arguments that the method expects, and then the name
983 after it has been renamed to make it distinct.
985 fn_fieldlists points to an array of nfn_fields of these. */
987 struct fn_fieldlist
*fn_fieldlists
;
989 /* * typedefs defined inside this class. typedef_field points to
990 an array of typedef_field_count elements. */
992 struct typedef_field
*typedef_field
;
994 unsigned typedef_field_count
;
996 /* * The template arguments. This is an array with
997 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
1000 struct symbol
**template_arguments
;
1003 /* * Struct used to store conversion rankings. */
1009 /* * When two conversions are of the same type and therefore have
1010 the same rank, subrank is used to differentiate the two.
1012 Eg: Two derived-class-pointer to base-class-pointer conversions
1013 would both have base pointer conversion rank, but the
1014 conversion with the shorter distance to the ancestor is
1015 preferable. 'subrank' would be used to reflect that. */
1020 /* * Struct used for ranking a function for overload resolution. */
1022 struct badness_vector
1028 /* * GNAT Ada-specific information for various Ada types. */
1030 struct gnat_aux_type
1032 /* * Parallel type used to encode information about dynamic types
1033 used in Ada (such as variant records, variable-size array,
1035 struct type
* descriptive_type
;
1038 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1042 /* * The calling convention for targets supporting multiple ABIs.
1043 Right now this is only fetched from the Dwarf-2
1044 DW_AT_calling_convention attribute. The value is one of the
1045 DW_CC enum dwarf_calling_convention constants. */
1047 unsigned calling_convention
: 8;
1049 /* * Whether this function normally returns to its caller. It is
1050 set from the DW_AT_noreturn attribute if set on the
1051 DW_TAG_subprogram. */
1053 unsigned int is_noreturn
: 1;
1055 /* * Only those DW_TAG_call_site's in this function that have
1056 DW_AT_call_tail_call set are linked in this list. Function
1057 without its tail call list complete
1058 (DW_AT_call_all_tail_calls or its superset
1059 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1060 DW_TAG_call_site's exist in such function. */
1062 struct call_site
*tail_call_list
;
1064 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1065 contains the method. */
1067 struct type
*self_type
;
1070 /* struct call_site_parameter can be referenced in callees by several ways. */
1072 enum call_site_parameter_kind
1074 /* * Use field call_site_parameter.u.dwarf_reg. */
1075 CALL_SITE_PARAMETER_DWARF_REG
,
1077 /* * Use field call_site_parameter.u.fb_offset. */
1078 CALL_SITE_PARAMETER_FB_OFFSET
,
1080 /* * Use field call_site_parameter.u.param_offset. */
1081 CALL_SITE_PARAMETER_PARAM_OFFSET
1084 struct call_site_target
1086 union field_location loc
;
1088 /* * Discriminant for union field_location. */
1090 ENUM_BITFIELD(field_loc_kind
) loc_kind
: 3;
1093 union call_site_parameter_u
1095 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1096 as DWARF register number, for register passed
1101 /* * Offset from the callee's frame base, for stack passed
1102 parameters. This equals offset from the caller's stack
1105 CORE_ADDR fb_offset
;
1107 /* * Offset relative to the start of this PER_CU to
1108 DW_TAG_formal_parameter which is referenced by both
1109 caller and the callee. */
1111 cu_offset param_offset
;
1114 struct call_site_parameter
1116 ENUM_BITFIELD (call_site_parameter_kind
) kind
: 2;
1118 union call_site_parameter_u u
;
1120 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1122 const gdb_byte
*value
;
1125 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1126 It may be NULL if not provided by DWARF. */
1128 const gdb_byte
*data_value
;
1129 size_t data_value_size
;
1132 /* * A place where a function gets called from, represented by
1133 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1137 /* * Address of the first instruction after this call. It must be
1138 the first field as we overload core_addr_hash and core_addr_eq
1143 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1145 struct call_site
*tail_call_next
;
1147 /* * Describe DW_AT_call_target. Missing attribute uses
1148 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1150 struct call_site_target target
;
1152 /* * Size of the PARAMETER array. */
1154 unsigned parameter_count
;
1156 /* * CU of the function where the call is located. It gets used
1157 for DWARF blocks execution in the parameter array below. */
1159 struct dwarf2_per_cu_data
*per_cu
;
1161 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1163 struct call_site_parameter parameter
[1];
1166 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1167 static structure. */
1169 extern const struct cplus_struct_type cplus_struct_default
;
1171 extern void allocate_cplus_struct_type (struct type
*);
1173 #define INIT_CPLUS_SPECIFIC(type) \
1174 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1175 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1176 &cplus_struct_default)
1178 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1180 #define HAVE_CPLUS_STRUCT(type) \
1181 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1182 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1184 extern const struct gnat_aux_type gnat_aux_default
;
1186 extern void allocate_gnat_aux_type (struct type
*);
1188 #define INIT_GNAT_SPECIFIC(type) \
1189 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1190 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1191 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1192 /* * A macro that returns non-zero if the type-specific data should be
1193 read as "gnat-stuff". */
1194 #define HAVE_GNAT_AUX_INFO(type) \
1195 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1197 #define INIT_FUNC_SPECIFIC(type) \
1198 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1199 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1200 TYPE_ZALLOC (type, \
1201 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1203 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1204 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1205 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1206 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1207 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1208 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1209 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1210 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1211 #define TYPE_CHAIN(thistype) (thistype)->chain
1212 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1213 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1214 so you only have to call check_typedef once. Since allocate_value
1215 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1216 #define TYPE_LENGTH(thistype) (thistype)->length
1217 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1218 type, you need to do TYPE_CODE (check_type (this_type)). */
1219 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1220 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1221 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1223 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1224 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1225 #define TYPE_LOW_BOUND(range_type) \
1226 TYPE_RANGE_DATA(range_type)->low.data.const_val
1227 #define TYPE_HIGH_BOUND(range_type) \
1228 TYPE_RANGE_DATA(range_type)->high.data.const_val
1229 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1230 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1231 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1232 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1233 #define TYPE_HIGH_BOUND_KIND(range_type) \
1234 TYPE_RANGE_DATA(range_type)->high.kind
1235 #define TYPE_LOW_BOUND_KIND(range_type) \
1236 TYPE_RANGE_DATA(range_type)->low.kind
1238 /* Property accessors for the type data location. */
1239 #define TYPE_DATA_LOCATION(thistype) \
1240 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1241 #define TYPE_DATA_LOCATION_BATON(thistype) \
1242 TYPE_DATA_LOCATION (thistype)->data.baton
1243 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1244 TYPE_DATA_LOCATION (thistype)->data.const_val
1245 #define TYPE_DATA_LOCATION_KIND(thistype) \
1246 TYPE_DATA_LOCATION (thistype)->kind
1248 /* Property accessors for the type allocated/associated. */
1249 #define TYPE_ALLOCATED_PROP(thistype) \
1250 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1251 #define TYPE_ASSOCIATED_PROP(thistype) \
1252 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1254 /* Attribute accessors for dynamic properties. */
1255 #define TYPE_DYN_PROP_LIST(thistype) \
1256 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1257 #define TYPE_DYN_PROP_BATON(dynprop) \
1259 #define TYPE_DYN_PROP_ADDR(dynprop) \
1260 dynprop->data.const_val
1261 #define TYPE_DYN_PROP_KIND(dynprop) \
1265 /* Moto-specific stuff for FORTRAN arrays. */
1267 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1268 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1269 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1270 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1272 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1273 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1275 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1276 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1280 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1281 /* Do not call this, use TYPE_SELF_TYPE. */
1282 extern struct type
*internal_type_self_type (struct type
*);
1283 extern void set_type_self_type (struct type
*, struct type
*);
1285 extern int internal_type_vptr_fieldno (struct type
*);
1286 extern void set_type_vptr_fieldno (struct type
*, int);
1287 extern struct type
*internal_type_vptr_basetype (struct type
*);
1288 extern void set_type_vptr_basetype (struct type
*, struct type
*);
1289 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1290 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1292 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1293 #define TYPE_SPECIFIC_FIELD(thistype) \
1294 TYPE_MAIN_TYPE(thistype)->type_specific_field
1295 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1296 where we're trying to print an Ada array using the C language.
1297 In that case, there is no "cplus_stuff", but the C language assumes
1298 that there is. What we do, in that case, is pretend that there is
1299 an implicit one which is the default cplus stuff. */
1300 #define TYPE_CPLUS_SPECIFIC(thistype) \
1301 (!HAVE_CPLUS_STRUCT(thistype) \
1302 ? (struct cplus_struct_type*)&cplus_struct_default \
1303 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1304 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1305 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1306 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1307 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1308 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1309 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1310 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1311 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1312 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1313 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1314 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1315 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1316 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1317 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1319 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1320 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1321 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1323 #define FIELD_TYPE(thisfld) ((thisfld).type)
1324 #define FIELD_NAME(thisfld) ((thisfld).name)
1325 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1326 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1327 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1328 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1329 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1330 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1331 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1332 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1333 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1334 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1335 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1336 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1337 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1338 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1339 #define SET_FIELD_PHYSNAME(thisfld, name) \
1340 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1341 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1342 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1343 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1344 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1345 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1346 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1347 FIELD_DWARF_BLOCK (thisfld) = (addr))
1348 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1349 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1351 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1352 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1353 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1354 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1355 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1356 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1357 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1358 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1359 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1360 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1361 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1362 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1364 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1365 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1366 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1367 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1368 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1369 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1370 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1371 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1372 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1373 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1374 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1375 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1376 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1377 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1378 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1379 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1380 #define TYPE_FIELD_PRIVATE(thistype, n) \
1381 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1382 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1383 #define TYPE_FIELD_PROTECTED(thistype, n) \
1384 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1385 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1386 #define TYPE_FIELD_IGNORE(thistype, n) \
1387 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1388 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1389 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1390 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1391 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1393 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1394 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1395 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1396 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1397 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1399 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1400 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1401 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1402 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1403 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1404 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1406 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1407 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1408 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1409 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1410 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1411 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1412 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1413 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1414 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
1415 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
1416 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
1417 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
1418 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
1419 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1420 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
1421 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1422 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1423 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1424 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1425 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1426 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1428 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1429 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1430 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1431 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1432 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1433 TYPE_TYPEDEF_FIELD (thistype, n).name
1434 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1435 TYPE_TYPEDEF_FIELD (thistype, n).type
1436 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1437 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1439 #define TYPE_IS_OPAQUE(thistype) \
1440 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1441 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1442 && (TYPE_NFIELDS (thistype) == 0) \
1443 && (!HAVE_CPLUS_STRUCT (thistype) \
1444 || TYPE_NFN_FIELDS (thistype) == 0) \
1445 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1447 /* * A helper macro that returns the name of a type or "unnamed type"
1448 if the type has no name. */
1450 #define TYPE_SAFE_NAME(type) \
1451 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1453 /* * A helper macro that returns the name of an error type. If the
1454 type has a name, it is used; otherwise, a default is used. */
1456 #define TYPE_ERROR_NAME(type) \
1457 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1461 /* Integral types. */
1463 /* Implicit size/sign (based on the architecture's ABI). */
1464 struct type
*builtin_void
;
1465 struct type
*builtin_char
;
1466 struct type
*builtin_short
;
1467 struct type
*builtin_int
;
1468 struct type
*builtin_long
;
1469 struct type
*builtin_signed_char
;
1470 struct type
*builtin_unsigned_char
;
1471 struct type
*builtin_unsigned_short
;
1472 struct type
*builtin_unsigned_int
;
1473 struct type
*builtin_unsigned_long
;
1474 struct type
*builtin_float
;
1475 struct type
*builtin_double
;
1476 struct type
*builtin_long_double
;
1477 struct type
*builtin_complex
;
1478 struct type
*builtin_double_complex
;
1479 struct type
*builtin_string
;
1480 struct type
*builtin_bool
;
1481 struct type
*builtin_long_long
;
1482 struct type
*builtin_unsigned_long_long
;
1483 struct type
*builtin_decfloat
;
1484 struct type
*builtin_decdouble
;
1485 struct type
*builtin_declong
;
1487 /* "True" character types.
1488 We use these for the '/c' print format, because c_char is just a
1489 one-byte integral type, which languages less laid back than C
1490 will print as ... well, a one-byte integral type. */
1491 struct type
*builtin_true_char
;
1492 struct type
*builtin_true_unsigned_char
;
1494 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1495 is for when an architecture needs to describe a register that has
1497 struct type
*builtin_int0
;
1498 struct type
*builtin_int8
;
1499 struct type
*builtin_uint8
;
1500 struct type
*builtin_int16
;
1501 struct type
*builtin_uint16
;
1502 struct type
*builtin_int32
;
1503 struct type
*builtin_uint32
;
1504 struct type
*builtin_int64
;
1505 struct type
*builtin_uint64
;
1506 struct type
*builtin_int128
;
1507 struct type
*builtin_uint128
;
1509 /* Wide character types. */
1510 struct type
*builtin_char16
;
1511 struct type
*builtin_char32
;
1513 /* Pointer types. */
1515 /* * `pointer to data' type. Some target platforms use an implicitly
1516 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1517 struct type
*builtin_data_ptr
;
1519 /* * `pointer to function (returning void)' type. Harvard
1520 architectures mean that ABI function and code pointers are not
1521 interconvertible. Similarly, since ANSI, C standards have
1522 explicitly said that pointers to functions and pointers to data
1523 are not interconvertible --- that is, you can't cast a function
1524 pointer to void * and back, and expect to get the same value.
1525 However, all function pointer types are interconvertible, so void
1526 (*) () can server as a generic function pointer. */
1528 struct type
*builtin_func_ptr
;
1530 /* * `function returning pointer to function (returning void)' type.
1531 The final void return type is not significant for it. */
1533 struct type
*builtin_func_func
;
1535 /* Special-purpose types. */
1537 /* * This type is used to represent a GDB internal function. */
1539 struct type
*internal_fn
;
1541 /* * This type is used to represent an xmethod. */
1542 struct type
*xmethod
;
1545 /* * Return the type table for the specified architecture. */
1547 extern const struct builtin_type
*builtin_type (struct gdbarch
*gdbarch
);
1549 /* * Per-objfile types used by symbol readers. */
1553 /* Basic types based on the objfile architecture. */
1554 struct type
*builtin_void
;
1555 struct type
*builtin_char
;
1556 struct type
*builtin_short
;
1557 struct type
*builtin_int
;
1558 struct type
*builtin_long
;
1559 struct type
*builtin_long_long
;
1560 struct type
*builtin_signed_char
;
1561 struct type
*builtin_unsigned_char
;
1562 struct type
*builtin_unsigned_short
;
1563 struct type
*builtin_unsigned_int
;
1564 struct type
*builtin_unsigned_long
;
1565 struct type
*builtin_unsigned_long_long
;
1566 struct type
*builtin_float
;
1567 struct type
*builtin_double
;
1568 struct type
*builtin_long_double
;
1570 /* * This type is used to represent symbol addresses. */
1571 struct type
*builtin_core_addr
;
1573 /* * This type represents a type that was unrecognized in symbol
1575 struct type
*builtin_error
;
1577 /* * Types used for symbols with no debug information. */
1578 struct type
*nodebug_text_symbol
;
1579 struct type
*nodebug_text_gnu_ifunc_symbol
;
1580 struct type
*nodebug_got_plt_symbol
;
1581 struct type
*nodebug_data_symbol
;
1582 struct type
*nodebug_unknown_symbol
;
1583 struct type
*nodebug_tls_symbol
;
1586 /* * Return the type table for the specified objfile. */
1588 extern const struct objfile_type
*objfile_type (struct objfile
*objfile
);
1590 /* Explicit floating-point formats. See "floatformat.h". */
1591 extern const struct floatformat
*floatformats_ieee_half
[BFD_ENDIAN_UNKNOWN
];
1592 extern const struct floatformat
*floatformats_ieee_single
[BFD_ENDIAN_UNKNOWN
];
1593 extern const struct floatformat
*floatformats_ieee_double
[BFD_ENDIAN_UNKNOWN
];
1594 extern const struct floatformat
*floatformats_ieee_double_littlebyte_bigword
[BFD_ENDIAN_UNKNOWN
];
1595 extern const struct floatformat
*floatformats_i387_ext
[BFD_ENDIAN_UNKNOWN
];
1596 extern const struct floatformat
*floatformats_m68881_ext
[BFD_ENDIAN_UNKNOWN
];
1597 extern const struct floatformat
*floatformats_arm_ext
[BFD_ENDIAN_UNKNOWN
];
1598 extern const struct floatformat
*floatformats_ia64_spill
[BFD_ENDIAN_UNKNOWN
];
1599 extern const struct floatformat
*floatformats_ia64_quad
[BFD_ENDIAN_UNKNOWN
];
1600 extern const struct floatformat
*floatformats_vax_f
[BFD_ENDIAN_UNKNOWN
];
1601 extern const struct floatformat
*floatformats_vax_d
[BFD_ENDIAN_UNKNOWN
];
1602 extern const struct floatformat
*floatformats_ibm_long_double
[BFD_ENDIAN_UNKNOWN
];
1605 /* * Allocate space for storing data associated with a particular
1606 type. We ensure that the space is allocated using the same
1607 mechanism that was used to allocate the space for the type
1608 structure itself. I.e. if the type is on an objfile's
1609 objfile_obstack, then the space for data associated with that type
1610 will also be allocated on the objfile_obstack. If the type is not
1611 associated with any particular objfile (such as builtin types),
1612 then the data space will be allocated with xmalloc, the same as for
1613 the type structure. */
1615 #define TYPE_ALLOC(t,size) \
1616 (TYPE_OBJFILE_OWNED (t) \
1617 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1620 #define TYPE_ZALLOC(t,size) \
1621 (TYPE_OBJFILE_OWNED (t) \
1622 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1626 /* Use alloc_type to allocate a type owned by an objfile. Use
1627 alloc_type_arch to allocate a type owned by an architecture. Use
1628 alloc_type_copy to allocate a type with the same owner as a
1629 pre-existing template type, no matter whether objfile or
1631 extern struct type
*alloc_type (struct objfile
*);
1632 extern struct type
*alloc_type_arch (struct gdbarch
*);
1633 extern struct type
*alloc_type_copy (const struct type
*);
1635 /* * Return the type's architecture. For types owned by an
1636 architecture, that architecture is returned. For types owned by an
1637 objfile, that objfile's architecture is returned. */
1639 extern struct gdbarch
*get_type_arch (const struct type
*);
1641 /* * This returns the target type (or NULL) of TYPE, also skipping
1644 extern struct type
*get_target_type (struct type
*type
);
1646 /* Return the equivalent of TYPE_LENGTH, but in number of target
1647 addressable memory units of the associated gdbarch instead of bytes. */
1649 extern unsigned int type_length_units (struct type
*type
);
1651 /* * Helper function to construct objfile-owned types. */
1653 extern struct type
*init_type (struct objfile
*, enum type_code
, int,
1655 extern struct type
*init_integer_type (struct objfile
*, int, int,
1657 extern struct type
*init_character_type (struct objfile
*, int, int,
1659 extern struct type
*init_boolean_type (struct objfile
*, int, int,
1661 extern struct type
*init_float_type (struct objfile
*, int, const char *,
1662 const struct floatformat
**);
1663 extern struct type
*init_decfloat_type (struct objfile
*, int, const char *);
1664 extern struct type
*init_complex_type (struct objfile
*, const char *,
1666 extern struct type
*init_pointer_type (struct objfile
*, int, const char *,
1669 /* Helper functions to construct architecture-owned types. */
1670 extern struct type
*arch_type (struct gdbarch
*, enum type_code
, int,
1672 extern struct type
*arch_integer_type (struct gdbarch
*, int, int,
1674 extern struct type
*arch_character_type (struct gdbarch
*, int, int,
1676 extern struct type
*arch_boolean_type (struct gdbarch
*, int, int,
1678 extern struct type
*arch_float_type (struct gdbarch
*, int, const char *,
1679 const struct floatformat
**);
1680 extern struct type
*arch_decfloat_type (struct gdbarch
*, int, const char *);
1681 extern struct type
*arch_complex_type (struct gdbarch
*, const char *,
1683 extern struct type
*arch_pointer_type (struct gdbarch
*, int, const char *,
1686 /* Helper functions to construct a struct or record type. An
1687 initially empty type is created using arch_composite_type().
1688 Fields are then added using append_composite_type_field*(). A union
1689 type has its size set to the largest field. A struct type has each
1690 field packed against the previous. */
1692 extern struct type
*arch_composite_type (struct gdbarch
*gdbarch
,
1693 const char *name
, enum type_code code
);
1694 extern void append_composite_type_field (struct type
*t
, const char *name
,
1695 struct type
*field
);
1696 extern void append_composite_type_field_aligned (struct type
*t
,
1700 struct field
*append_composite_type_field_raw (struct type
*t
, const char *name
,
1701 struct type
*field
);
1703 /* Helper functions to construct a bit flags type. An initially empty
1704 type is created using arch_flag_type(). Flags are then added using
1705 append_flag_type_field() and append_flag_type_flag(). */
1706 extern struct type
*arch_flags_type (struct gdbarch
*gdbarch
,
1707 const char *name
, int length
);
1708 extern void append_flags_type_field (struct type
*type
,
1709 int start_bitpos
, int nr_bits
,
1710 struct type
*field_type
, const char *name
);
1711 extern void append_flags_type_flag (struct type
*type
, int bitpos
,
1714 extern void make_vector_type (struct type
*array_type
);
1715 extern struct type
*init_vector_type (struct type
*elt_type
, int n
);
1717 extern struct type
*lookup_reference_type (struct type
*);
1719 extern struct type
*make_reference_type (struct type
*, struct type
**);
1721 extern struct type
*make_cv_type (int, int, struct type
*, struct type
**);
1723 extern struct type
*make_restrict_type (struct type
*);
1725 extern struct type
*make_unqualified_type (struct type
*);
1727 extern struct type
*make_atomic_type (struct type
*);
1729 extern void replace_type (struct type
*, struct type
*);
1731 extern int address_space_name_to_int (struct gdbarch
*, char *);
1733 extern const char *address_space_int_to_name (struct gdbarch
*, int);
1735 extern struct type
*make_type_with_address_space (struct type
*type
,
1736 int space_identifier
);
1738 extern struct type
*lookup_memberptr_type (struct type
*, struct type
*);
1740 extern struct type
*lookup_methodptr_type (struct type
*);
1742 extern void smash_to_method_type (struct type
*type
, struct type
*self_type
,
1743 struct type
*to_type
, struct field
*args
,
1744 int nargs
, int varargs
);
1746 extern void smash_to_memberptr_type (struct type
*, struct type
*,
1749 extern void smash_to_methodptr_type (struct type
*, struct type
*);
1751 extern struct type
*allocate_stub_method (struct type
*);
1753 extern const char *type_name_no_tag (const struct type
*);
1755 extern const char *type_name_no_tag_or_error (struct type
*type
);
1757 extern struct type
*lookup_struct_elt_type (struct type
*, const char *, int);
1759 extern struct type
*make_pointer_type (struct type
*, struct type
**);
1761 extern struct type
*lookup_pointer_type (struct type
*);
1763 extern struct type
*make_function_type (struct type
*, struct type
**);
1765 extern struct type
*lookup_function_type (struct type
*);
1767 extern struct type
*lookup_function_type_with_arguments (struct type
*,
1771 extern struct type
*create_static_range_type (struct type
*, struct type
*,
1775 extern struct type
*create_array_type_with_stride
1776 (struct type
*, struct type
*, struct type
*, unsigned int);
1778 extern struct type
*create_range_type (struct type
*, struct type
*,
1779 const struct dynamic_prop
*,
1780 const struct dynamic_prop
*);
1782 extern struct type
*create_array_type (struct type
*, struct type
*,
1785 extern struct type
*lookup_array_range_type (struct type
*, LONGEST
, LONGEST
);
1787 extern struct type
*create_string_type (struct type
*, struct type
*,
1789 extern struct type
*lookup_string_range_type (struct type
*, LONGEST
, LONGEST
);
1791 extern struct type
*create_set_type (struct type
*, struct type
*);
1793 extern struct type
*lookup_unsigned_typename (const struct language_defn
*,
1794 struct gdbarch
*, const char *);
1796 extern struct type
*lookup_signed_typename (const struct language_defn
*,
1797 struct gdbarch
*, const char *);
1799 extern void get_unsigned_type_max (struct type
*, ULONGEST
*);
1801 extern void get_signed_type_minmax (struct type
*, LONGEST
*, LONGEST
*);
1803 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1804 ADDR specifies the location of the variable the type is bound to.
1805 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1806 static properties is returned. */
1807 extern struct type
*resolve_dynamic_type (struct type
*type
,
1808 const gdb_byte
*valaddr
,
1811 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1812 extern int is_dynamic_type (struct type
*type
);
1814 /* * Return the dynamic property of the requested KIND from TYPE's
1815 list of dynamic properties. */
1816 extern struct dynamic_prop
*get_dyn_prop
1817 (enum dynamic_prop_node_kind kind
, const struct type
*type
);
1819 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1820 property to the given TYPE.
1822 This function assumes that TYPE is objfile-owned, and that OBJFILE
1823 is the TYPE's objfile. */
1824 extern void add_dyn_prop
1825 (enum dynamic_prop_node_kind kind
, struct dynamic_prop prop
,
1826 struct type
*type
, struct objfile
*objfile
);
1828 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind
,
1831 extern struct type
*check_typedef (struct type
*);
1833 extern void check_stub_method_group (struct type
*, int);
1835 extern char *gdb_mangle_name (struct type
*, int, int);
1837 extern struct type
*lookup_typename (const struct language_defn
*,
1838 struct gdbarch
*, const char *,
1839 const struct block
*, int);
1841 extern struct type
*lookup_template_type (char *, struct type
*,
1842 const struct block
*);
1844 extern int get_vptr_fieldno (struct type
*, struct type
**);
1846 extern int get_discrete_bounds (struct type
*, LONGEST
*, LONGEST
*);
1848 extern int get_array_bounds (struct type
*type
, LONGEST
*low_bound
,
1849 LONGEST
*high_bound
);
1851 extern int discrete_position (struct type
*type
, LONGEST val
, LONGEST
*pos
);
1853 extern int class_types_same_p (const struct type
*, const struct type
*);
1855 extern int is_ancestor (struct type
*, struct type
*);
1857 extern int is_public_ancestor (struct type
*, struct type
*);
1859 extern int is_unique_ancestor (struct type
*, struct value
*);
1861 /* Overload resolution */
1863 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1865 /* * Badness if parameter list length doesn't match arg list length. */
1866 extern const struct rank LENGTH_MISMATCH_BADNESS
;
1868 /* * Dummy badness value for nonexistent parameter positions. */
1869 extern const struct rank TOO_FEW_PARAMS_BADNESS
;
1870 /* * Badness if no conversion among types. */
1871 extern const struct rank INCOMPATIBLE_TYPE_BADNESS
;
1873 /* * Badness of an exact match. */
1874 extern const struct rank EXACT_MATCH_BADNESS
;
1876 /* * Badness of integral promotion. */
1877 extern const struct rank INTEGER_PROMOTION_BADNESS
;
1878 /* * Badness of floating promotion. */
1879 extern const struct rank FLOAT_PROMOTION_BADNESS
;
1880 /* * Badness of converting a derived class pointer
1881 to a base class pointer. */
1882 extern const struct rank BASE_PTR_CONVERSION_BADNESS
;
1883 /* * Badness of integral conversion. */
1884 extern const struct rank INTEGER_CONVERSION_BADNESS
;
1885 /* * Badness of floating conversion. */
1886 extern const struct rank FLOAT_CONVERSION_BADNESS
;
1887 /* * Badness of integer<->floating conversions. */
1888 extern const struct rank INT_FLOAT_CONVERSION_BADNESS
;
1889 /* * Badness of conversion of pointer to void pointer. */
1890 extern const struct rank VOID_PTR_CONVERSION_BADNESS
;
1891 /* * Badness of conversion to boolean. */
1892 extern const struct rank BOOL_CONVERSION_BADNESS
;
1893 /* * Badness of converting derived to base class. */
1894 extern const struct rank BASE_CONVERSION_BADNESS
;
1895 /* * Badness of converting from non-reference to reference. */
1896 extern const struct rank REFERENCE_CONVERSION_BADNESS
;
1897 /* * Badness of converting integer 0 to NULL pointer. */
1898 extern const struct rank NULL_POINTER_CONVERSION
;
1900 /* Non-standard conversions allowed by the debugger */
1902 /* * Converting a pointer to an int is usually OK. */
1903 extern const struct rank NS_POINTER_CONVERSION_BADNESS
;
1905 /* * Badness of converting a (non-zero) integer constant
1907 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS
;
1909 extern struct rank
sum_ranks (struct rank a
, struct rank b
);
1910 extern int compare_ranks (struct rank a
, struct rank b
);
1912 extern int compare_badness (struct badness_vector
*, struct badness_vector
*);
1914 extern struct badness_vector
*rank_function (struct type
**, int,
1915 struct value
**, int);
1917 extern struct rank
rank_one_type (struct type
*, struct type
*,
1920 extern void recursive_dump_type (struct type
*, int);
1922 extern int field_is_static (struct field
*);
1926 extern void print_scalar_formatted (const gdb_byte
*, struct type
*,
1927 const struct value_print_options
*,
1928 int, struct ui_file
*);
1930 extern int can_dereference (struct type
*);
1932 extern int is_integral_type (struct type
*);
1934 extern int is_scalar_type (struct type
*type
);
1936 extern int is_scalar_type_recursive (struct type
*);
1938 extern int class_or_union_p (const struct type
*);
1940 extern void maintenance_print_type (char *, int);
1942 extern htab_t
create_copied_types_hash (struct objfile
*objfile
);
1944 extern struct type
*copy_type_recursive (struct objfile
*objfile
,
1946 htab_t copied_types
);
1948 extern struct type
*copy_type (const struct type
*type
);
1950 extern int types_equal (struct type
*, struct type
*);
1952 extern int types_deeply_equal (struct type
*, struct type
*);
1954 extern int type_not_allocated (const struct type
*type
);
1956 extern int type_not_associated (const struct type
*type
);
1958 #endif /* GDBTYPES_H */