2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2018 Free Software Foundation, Inc.
6 Contributed by Cygnus Support, using pieces from other GDB modules.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #if !defined (GDBTYPES_H)
26 /* * \page gdbtypes GDB Types
28 GDB represents all the different kinds of types in programming
29 languages using a common representation defined in gdbtypes.h.
31 The main data structure is main_type; it consists of a code (such
32 as #TYPE_CODE_ENUM for enumeration types), a number of
33 generally-useful fields such as the printable name, and finally a
34 field main_type::type_specific that is a union of info specific to
35 particular languages or other special cases (such as calling
38 The available type codes are defined in enum #type_code. The enum
39 includes codes both for types that are common across a variety
40 of languages, and for types that are language-specific.
42 Most accesses to type fields go through macros such as
43 #TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are
44 written such that they can be used as both rvalues and lvalues.
48 #include "common/offset-type.h"
49 #include "common/enum-flags.h"
50 #include "common/underlying.h"
51 #include "common/print-utils.h"
53 /* Forward declarations for prototypes. */
56 struct value_print_options;
59 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
60 are already DWARF-specific. */
62 /* * Offset relative to the start of its containing CU (compilation
64 DEFINE_OFFSET_TYPE (cu_offset, unsigned int);
66 /* * Offset relative to the start of its .debug_info or .debug_types
68 DEFINE_OFFSET_TYPE (sect_offset, uint64_t);
71 sect_offset_str (sect_offset offset)
73 return hex_string (to_underlying (offset));
76 /* Some macros for char-based bitfields. */
78 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
79 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
80 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
81 #define B_TYPE unsigned char
82 #define B_BYTES(x) ( 1 + ((x)>>3) )
83 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
85 /* * Different kinds of data types are distinguished by the `code'
90 TYPE_CODE_BITSTRING = -1, /**< Deprecated */
91 TYPE_CODE_UNDEF = 0, /**< Not used; catches errors */
92 TYPE_CODE_PTR, /**< Pointer type */
94 /* * Array type with lower & upper bounds.
96 Regardless of the language, GDB represents multidimensional
97 array types the way C does: as arrays of arrays. So an
98 instance of a GDB array type T can always be seen as a series
99 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
102 Row-major languages like C lay out multi-dimensional arrays so
103 that incrementing the rightmost index in a subscripting
104 expression results in the smallest change in the address of the
105 element referred to. Column-major languages like Fortran lay
106 them out so that incrementing the leftmost index results in the
109 This means that, in column-major languages, working our way
110 from type to target type corresponds to working through indices
111 from right to left, not left to right. */
114 TYPE_CODE_STRUCT, /**< C struct or Pascal record */
115 TYPE_CODE_UNION, /**< C union or Pascal variant part */
116 TYPE_CODE_ENUM, /**< Enumeration type */
117 TYPE_CODE_FLAGS, /**< Bit flags type */
118 TYPE_CODE_FUNC, /**< Function type */
119 TYPE_CODE_INT, /**< Integer type */
121 /* * Floating type. This is *NOT* a complex type. Beware, there
122 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
126 /* * Void type. The length field specifies the length (probably
127 always one) which is used in pointer arithmetic involving
128 pointers to this type, but actually dereferencing such a
129 pointer is invalid; a void type has no length and no actual
130 representation in memory or registers. A pointer to a void
131 type is a generic pointer. */
134 TYPE_CODE_SET, /**< Pascal sets */
135 TYPE_CODE_RANGE, /**< Range (integers within spec'd bounds). */
137 /* * A string type which is like an array of character but prints
138 differently. It does not contain a length field as Pascal
139 strings (for many Pascals, anyway) do; if we want to deal with
140 such strings, we should use a new type code. */
143 /* * Unknown type. The length field is valid if we were able to
144 deduce that much about the type, or 0 if we don't even know
149 TYPE_CODE_METHOD, /**< Method type */
151 /* * Pointer-to-member-function type. This describes how to access a
152 particular member function of a class (possibly a virtual
153 member function). The representation may vary between different
157 /* * Pointer-to-member type. This is the offset within a class to
158 some particular data member. The only currently supported
159 representation uses an unbiased offset, with -1 representing
160 NULL; this is used by the Itanium C++ ABI (used by GCC on all
164 TYPE_CODE_REF, /**< C++ Reference types */
166 TYPE_CODE_RVALUE_REF, /**< C++ rvalue reference types */
168 TYPE_CODE_CHAR, /**< *real* character type */
170 /* * Boolean type. 0 is false, 1 is true, and other values are
171 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
175 TYPE_CODE_COMPLEX, /**< Complex float */
179 TYPE_CODE_NAMESPACE, /**< C++ namespace. */
181 TYPE_CODE_DECFLOAT, /**< Decimal floating point. */
183 TYPE_CODE_MODULE, /**< Fortran module. */
185 /* * Internal function type. */
186 TYPE_CODE_INTERNAL_FUNCTION,
188 /* * Methods implemented in extension languages. */
192 /* * Some bits for the type's instance_flags word. See the macros
193 below for documentation on each bit. */
195 enum type_instance_flag_value
197 TYPE_INSTANCE_FLAG_CONST = (1 << 0),
198 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
199 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
200 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
201 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
202 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5),
203 TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6),
204 TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7),
205 TYPE_INSTANCE_FLAG_ATOMIC = (1 << 8)
208 DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags);
210 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
211 the type is signed (unless TYPE_NOSIGN (below) is set). */
213 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
215 /* * No sign for this type. In C++, "char", "signed char", and
216 "unsigned char" are distinct types; so we need an extra flag to
217 indicate the absence of a sign! */
219 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
221 /* * This appears in a type's flags word if it is a stub type (e.g.,
222 if someone referenced a type that wasn't defined in a source file
223 via (struct sir_not_appearing_in_this_film *)). */
225 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
227 /* * The target type of this type is a stub type, and this type needs
228 to be updated if it gets un-stubbed in check_typedef. Used for
229 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
230 based on the TYPE_LENGTH of the target type. Also, set for
231 TYPE_CODE_TYPEDEF. */
233 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
235 /* * This is a function type which appears to have a prototype. We
236 need this for function calls in order to tell us if it's necessary
237 to coerce the args, or to just do the standard conversions. This
238 is used with a short field. */
240 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
242 /* * This flag is used to indicate that processing for this type
245 (Mostly intended for HP platforms, where class methods, for
246 instance, can be encountered before their classes in the debug
247 info; the incomplete type has to be marked so that the class and
248 the method can be assigned correct types.) */
250 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
252 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
255 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
257 /* * Identify a vector type. Gcc is handling this by adding an extra
258 attribute to the array type. We slurp that in as a new flag of a
259 type. This is used only in dwarf2read.c. */
260 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
262 /* * The debugging formats (especially STABS) do not contain enough
263 information to represent all Ada types---especially those whose
264 size depends on dynamic quantities. Therefore, the GNAT Ada
265 compiler includes extra information in the form of additional type
266 definitions connected by naming conventions. This flag indicates
267 that the type is an ordinary (unencoded) GDB type that has been
268 created from the necessary run-time information, and does not need
269 further interpretation. Optionally marks ordinary, fixed-size GDB
272 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
274 /* * This debug target supports TYPE_STUB(t). In the unsupported case
275 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
276 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
277 guessed the TYPE_STUB(t) value (see dwarfread.c). */
279 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
281 /* * Not textual. By default, GDB treats all single byte integers as
282 characters (or elements of strings) unless this flag is set. */
284 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
286 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
287 address is returned by this function call. TYPE_TARGET_TYPE
288 determines the final returned function type to be presented to
291 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
293 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
294 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
295 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
297 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
298 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
299 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
301 /* * True if this type was declared using the "class" keyword. This is
302 only valid for C++ structure and enum types. If false, a structure
303 was declared as a "struct"; if true it was declared "class". For
304 enum types, this is true when "enum class" or "enum struct" was
305 used to declare the type.. */
307 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
309 /* * True if this type is a "flag" enum. A flag enum is one where all
310 the values are pairwise disjoint when "and"ed together. This
311 affects how enum values are printed. */
313 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
315 /* * Constant type. If this is set, the corresponding type has a
318 #define TYPE_CONST(t) ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) != 0)
320 /* * Volatile type. If this is set, the corresponding type has a
321 volatile modifier. */
323 #define TYPE_VOLATILE(t) \
324 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
326 /* * Restrict type. If this is set, the corresponding type has a
327 restrict modifier. */
329 #define TYPE_RESTRICT(t) \
330 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
332 /* * Atomic type. If this is set, the corresponding type has an
335 #define TYPE_ATOMIC(t) \
336 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
338 /* * True if this type represents either an lvalue or lvalue reference type. */
340 #define TYPE_IS_REFERENCE(t) \
341 (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
343 /* * Instruction-space delimited type. This is for Harvard architectures
344 which have separate instruction and data address spaces (and perhaps
347 GDB usually defines a flat address space that is a superset of the
348 architecture's two (or more) address spaces, but this is an extension
349 of the architecture's model.
351 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
352 resides in instruction memory, even if its address (in the extended
353 flat address space) does not reflect this.
355 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
356 corresponding type resides in the data memory space, even if
357 this is not indicated by its (flat address space) address.
359 If neither flag is set, the default space for functions / methods
360 is instruction space, and for data objects is data memory. */
362 #define TYPE_CODE_SPACE(t) \
363 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
365 #define TYPE_DATA_SPACE(t) \
366 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
368 /* * Address class flags. Some environments provide for pointers
369 whose size is different from that of a normal pointer or address
370 types where the bits are interpreted differently than normal
371 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
372 target specific ways to represent these different types of address
375 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
376 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
377 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
378 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
379 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
380 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
381 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
382 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
384 enum dynamic_prop_kind
386 PROP_UNDEFINED, /* Not defined. */
387 PROP_CONST, /* Constant. */
388 PROP_ADDR_OFFSET, /* Address offset. */
389 PROP_LOCEXPR, /* Location expression. */
390 PROP_LOCLIST /* Location list. */
393 union dynamic_prop_data
395 /* Storage for constant property. */
399 /* Storage for dynamic property. */
404 /* * Used to store a dynamic property. */
408 /* Determine which field of the union dynamic_prop.data is used. */
409 enum dynamic_prop_kind kind;
411 /* Storage for dynamic or static value. */
412 union dynamic_prop_data data;
415 /* Compare two dynamic_prop objects for equality. dynamic_prop
416 instances are equal iff they have the same type and storage. */
417 extern bool operator== (const dynamic_prop &l, const dynamic_prop &r);
419 /* Compare two dynamic_prop objects for inequality. */
420 static inline bool operator!= (const dynamic_prop &l, const dynamic_prop &r)
425 /* * Define a type's dynamic property node kind. */
426 enum dynamic_prop_node_kind
428 /* A property providing a type's data location.
429 Evaluating this field yields to the location of an object's data. */
430 DYN_PROP_DATA_LOCATION,
432 /* A property representing DW_AT_allocated. The presence of this attribute
433 indicates that the object of the type can be allocated/deallocated. */
436 /* A property representing DW_AT_allocated. The presence of this attribute
437 indicated that the object of the type can be associated. */
440 /* A property providing an array's byte stride. */
441 DYN_PROP_BYTE_STRIDE,
444 /* * List for dynamic type attributes. */
445 struct dynamic_prop_list
447 /* The kind of dynamic prop in this node. */
448 enum dynamic_prop_node_kind prop_kind;
450 /* The dynamic property itself. */
451 struct dynamic_prop prop;
453 /* A pointer to the next dynamic property. */
454 struct dynamic_prop_list *next;
457 /* * Determine which field of the union main_type.fields[x].loc is
462 FIELD_LOC_KIND_BITPOS, /**< bitpos */
463 FIELD_LOC_KIND_ENUMVAL, /**< enumval */
464 FIELD_LOC_KIND_PHYSADDR, /**< physaddr */
465 FIELD_LOC_KIND_PHYSNAME, /**< physname */
466 FIELD_LOC_KIND_DWARF_BLOCK /**< dwarf_block */
469 /* * A discriminant to determine which field in the
470 main_type.type_specific union is being used, if any.
472 For types such as TYPE_CODE_FLT, the use of this
473 discriminant is really redundant, as we know from the type code
474 which field is going to be used. As such, it would be possible to
475 reduce the size of this enum in order to save a bit or two for
476 other fields of struct main_type. But, since we still have extra
477 room , and for the sake of clarity and consistency, we treat all fields
478 of the union the same way. */
480 enum type_specific_kind
483 TYPE_SPECIFIC_CPLUS_STUFF,
484 TYPE_SPECIFIC_GNAT_STUFF,
485 TYPE_SPECIFIC_FLOATFORMAT,
486 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
488 TYPE_SPECIFIC_SELF_TYPE
493 struct objfile *objfile;
494 struct gdbarch *gdbarch;
499 /* * Position of this field, counting in bits from start of
500 containing structure. For gdbarch_bits_big_endian=1
501 targets, it is the bit offset to the MSB. For
502 gdbarch_bits_big_endian=0 targets, it is the bit offset to
510 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
511 physaddr is the location (in the target) of the static
512 field. Otherwise, physname is the mangled label of the
516 const char *physname;
518 /* * The field location can be computed by evaluating the
519 following DWARF block. Its DATA is allocated on
520 objfile_obstack - no CU load is needed to access it. */
522 struct dwarf2_locexpr_baton *dwarf_block;
527 union field_location loc;
529 /* * For a function or member type, this is 1 if the argument is
530 marked artificial. Artificial arguments should not be shown
531 to the user. For TYPE_CODE_RANGE it is set if the specific
532 bound is not defined. */
534 unsigned int artificial : 1;
536 /* * Discriminant for union field_location. */
538 ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
540 /* * Size of this field, in bits, or zero if not packed.
541 If non-zero in an array type, indicates the element size in
542 bits (used only in Ada at the moment).
543 For an unpacked field, the field's type's length
544 says how many bytes the field occupies. */
546 unsigned int bitsize : 28;
548 /* * In a struct or union type, type of this field.
549 - In a function or member type, type of this argument.
550 - In an array type, the domain-type of the array. */
554 /* * Name of field, value or argument.
555 NULL for range bounds, array domains, and member function
563 /* * Low bound of range. */
565 struct dynamic_prop low;
567 /* * High bound of range. */
569 struct dynamic_prop high;
571 /* True if HIGH range bound contains the number of elements in the
572 subrange. This affects how the final hight bound is computed. */
574 int flag_upper_bound_is_count : 1;
576 /* True if LOW or/and HIGH are resolved into a static bound from
579 int flag_bound_evaluated : 1;
582 /* Compare two range_bounds objects for equality. Simply does
583 memberwise comparison. */
584 extern bool operator== (const range_bounds &l, const range_bounds &r);
586 /* Compare two range_bounds objects for inequality. */
587 static inline bool operator!= (const range_bounds &l, const range_bounds &r)
594 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
595 point to cplus_struct_default, a default static instance of a
596 struct cplus_struct_type. */
598 struct cplus_struct_type *cplus_stuff;
600 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
601 provides additional information. */
603 struct gnat_aux_type *gnat_stuff;
605 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a
606 floatformat object that describes the floating-point value
607 that resides within the type. */
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_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 /* * A C++ rvalue reference type added in C++11. */
772 struct type *rvalue_reference_type;
774 /* * Variant chain. This points to a type that differs from this
775 one only in qualifiers and length. Currently, the possible
776 qualifiers are const, volatile, code-space, data-space, and
777 address class. The length may differ only when one of the
778 address class flags are set. The variants are linked in a
779 circular ring and share MAIN_TYPE. */
783 /* * Flags specific to this instance of the type, indicating where
786 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
787 binary or-ed with the target type, with a special case for
788 address class and space class. For example if this typedef does
789 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
790 instance flags are completely inherited from the target type. No
791 qualifiers can be cleared by the typedef. See also
795 /* * Length of storage for a value of this type. The value is the
796 expression in host bytes of what sizeof(type) would return. This
797 size includes padding. For example, an i386 extended-precision
798 floating point value really only occupies ten bytes, but most
799 ABI's declare its size to be 12 bytes, to preserve alignment.
800 A `struct type' representing such a floating-point type would
801 have a `length' value of 12, even though the last two bytes are
804 Since this field is expressed in host bytes, its value is appropriate
805 to pass to memcpy and such (it is assumed that GDB itself always runs
806 on an 8-bits addressable architecture). However, when using it for
807 target address arithmetic (e.g. adding it to a target address), the
808 type_length_units function should be used in order to get the length
809 expressed in target addressable memory units. */
813 /* * Core type, shared by a group of qualified types. */
815 struct main_type *main_type;
818 #define NULL_TYPE ((struct type *) 0)
823 /* * The overloaded name.
824 This is generally allocated in the objfile's obstack.
825 However stabsread.c sometimes uses malloc. */
829 /* * The number of methods with this name. */
833 /* * The list of methods. */
835 struct fn_field *fn_fields;
842 /* * If is_stub is clear, this is the mangled name which we can look
843 up to find the address of the method (FIXME: it would be cleaner
844 to have a pointer to the struct symbol here instead).
846 If is_stub is set, this is the portion of the mangled name which
847 specifies the arguments. For example, "ii", if there are two int
848 arguments, or "" if there are no arguments. See gdb_mangle_name
849 for the conversion from this format to the one used if is_stub is
852 const char *physname;
854 /* * The function type for the method.
856 (This comment used to say "The return value of the method", but
857 that's wrong. The function type is expected here, i.e. something
858 with TYPE_CODE_METHOD, and *not* the return-value type). */
862 /* * For virtual functions. First baseclass that defines this
865 struct type *fcontext;
869 unsigned int is_const:1;
870 unsigned int is_volatile:1;
871 unsigned int is_private:1;
872 unsigned int is_protected:1;
873 unsigned int is_artificial:1;
875 /* * A stub method only has some fields valid (but they are enough
876 to reconstruct the rest of the fields). */
878 unsigned int is_stub:1;
880 /* * True if this function is a constructor, false otherwise. */
882 unsigned int is_constructor : 1;
886 unsigned int dummy:9;
888 /* * Index into that baseclass's virtual function table, minus 2;
889 else if static: VOFFSET_STATIC; else: 0. */
891 unsigned int voffset:16;
893 #define VOFFSET_STATIC 1
899 /* * Unqualified name to be prefixed by owning class qualified
904 /* * Type this typedef named NAME represents. */
908 /* * True if this field was declared protected, false otherwise. */
909 unsigned int is_protected : 1;
911 /* * True if this field was declared private, false otherwise. */
912 unsigned int is_private : 1;
915 /* * C++ language-specific information for TYPE_CODE_STRUCT and
916 TYPE_CODE_UNION nodes. */
918 struct cplus_struct_type
920 /* * Number of base classes this type derives from. The
921 baseclasses are stored in the first N_BASECLASSES fields
922 (i.e. the `fields' field of the struct type). The only fields
923 of struct field that are used are: type, name, loc.bitpos. */
927 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
928 All access to this field must be through TYPE_VPTR_FIELDNO as one
929 thing it does is check whether the field has been initialized.
930 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
931 which for portability reasons doesn't initialize this field.
932 TYPE_VPTR_FIELDNO returns -1 for this case.
934 If -1, we were unable to find the virtual function table pointer in
935 initial symbol reading, and get_vptr_fieldno should be called to find
936 it if possible. get_vptr_fieldno will update this field if possible.
937 Otherwise the value is left at -1.
939 Unused if this type does not have virtual functions. */
943 /* * Number of methods with unique names. All overloaded methods
944 with the same name count only once. */
948 /* * Number of template arguments. */
950 unsigned short n_template_arguments;
952 /* * One if this struct is a dynamic class, as defined by the
953 Itanium C++ ABI: if it requires a virtual table pointer,
954 because it or any of its base classes have one or more virtual
955 member functions or virtual base classes. Minus one if not
956 dynamic. Zero if not yet computed. */
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 decl_field *typedef_field;
1014 unsigned typedef_field_count;
1016 /* * The nested types defined by this type. nested_types points to
1017 an array of nested_types_count elements. */
1019 struct decl_field *nested_types;
1021 unsigned nested_types_count;
1023 /* * The template arguments. This is an array with
1024 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
1027 struct symbol **template_arguments;
1030 /* * Struct used to store conversion rankings. */
1036 /* * When two conversions are of the same type and therefore have
1037 the same rank, subrank is used to differentiate the two.
1039 Eg: Two derived-class-pointer to base-class-pointer conversions
1040 would both have base pointer conversion rank, but the
1041 conversion with the shorter distance to the ancestor is
1042 preferable. 'subrank' would be used to reflect that. */
1047 /* * Struct used for ranking a function for overload resolution. */
1049 struct badness_vector
1055 /* * GNAT Ada-specific information for various Ada types. */
1057 struct gnat_aux_type
1059 /* * Parallel type used to encode information about dynamic types
1060 used in Ada (such as variant records, variable-size array,
1062 struct type* descriptive_type;
1065 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1069 /* * The calling convention for targets supporting multiple ABIs.
1070 Right now this is only fetched from the Dwarf-2
1071 DW_AT_calling_convention attribute. The value is one of the
1072 DW_CC enum dwarf_calling_convention constants. */
1074 unsigned calling_convention : 8;
1076 /* * Whether this function normally returns to its caller. It is
1077 set from the DW_AT_noreturn attribute if set on the
1078 DW_TAG_subprogram. */
1080 unsigned int is_noreturn : 1;
1082 /* * Only those DW_TAG_call_site's in this function that have
1083 DW_AT_call_tail_call set are linked in this list. Function
1084 without its tail call list complete
1085 (DW_AT_call_all_tail_calls or its superset
1086 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1087 DW_TAG_call_site's exist in such function. */
1089 struct call_site *tail_call_list;
1091 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1092 contains the method. */
1094 struct type *self_type;
1097 /* struct call_site_parameter can be referenced in callees by several ways. */
1099 enum call_site_parameter_kind
1101 /* * Use field call_site_parameter.u.dwarf_reg. */
1102 CALL_SITE_PARAMETER_DWARF_REG,
1104 /* * Use field call_site_parameter.u.fb_offset. */
1105 CALL_SITE_PARAMETER_FB_OFFSET,
1107 /* * Use field call_site_parameter.u.param_offset. */
1108 CALL_SITE_PARAMETER_PARAM_OFFSET
1111 struct call_site_target
1113 union field_location loc;
1115 /* * Discriminant for union field_location. */
1117 ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
1120 union call_site_parameter_u
1122 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1123 as DWARF register number, for register passed
1128 /* * Offset from the callee's frame base, for stack passed
1129 parameters. This equals offset from the caller's stack
1132 CORE_ADDR fb_offset;
1134 /* * Offset relative to the start of this PER_CU to
1135 DW_TAG_formal_parameter which is referenced by both
1136 caller and the callee. */
1138 cu_offset param_cu_off;
1141 struct call_site_parameter
1143 ENUM_BITFIELD (call_site_parameter_kind) kind : 2;
1145 union call_site_parameter_u u;
1147 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1149 const gdb_byte *value;
1152 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1153 It may be NULL if not provided by DWARF. */
1155 const gdb_byte *data_value;
1156 size_t data_value_size;
1159 /* * A place where a function gets called from, represented by
1160 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1164 /* * Address of the first instruction after this call. It must be
1165 the first field as we overload core_addr_hash and core_addr_eq
1170 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1172 struct call_site *tail_call_next;
1174 /* * Describe DW_AT_call_target. Missing attribute uses
1175 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1177 struct call_site_target target;
1179 /* * Size of the PARAMETER array. */
1181 unsigned parameter_count;
1183 /* * CU of the function where the call is located. It gets used
1184 for DWARF blocks execution in the parameter array below. */
1186 struct dwarf2_per_cu_data *per_cu;
1188 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1190 struct call_site_parameter parameter[1];
1193 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1194 static structure. */
1196 extern const struct cplus_struct_type cplus_struct_default;
1198 extern void allocate_cplus_struct_type (struct type *);
1200 #define INIT_CPLUS_SPECIFIC(type) \
1201 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1202 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1203 &cplus_struct_default)
1205 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1207 #define HAVE_CPLUS_STRUCT(type) \
1208 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1209 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1211 extern const struct gnat_aux_type gnat_aux_default;
1213 extern void allocate_gnat_aux_type (struct type *);
1215 #define INIT_GNAT_SPECIFIC(type) \
1216 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1217 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1218 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1219 /* * A macro that returns non-zero if the type-specific data should be
1220 read as "gnat-stuff". */
1221 #define HAVE_GNAT_AUX_INFO(type) \
1222 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1224 #define INIT_FUNC_SPECIFIC(type) \
1225 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1226 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1227 TYPE_ZALLOC (type, \
1228 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1230 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1231 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1232 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1233 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1234 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1235 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1236 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1237 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1238 #define TYPE_CHAIN(thistype) (thistype)->chain
1239 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1240 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1241 so you only have to call check_typedef once. Since allocate_value
1242 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1243 #define TYPE_LENGTH(thistype) (thistype)->length
1244 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1245 type, you need to do TYPE_CODE (check_type (this_type)). */
1246 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1247 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1248 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1250 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1251 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1252 #define TYPE_LOW_BOUND(range_type) \
1253 TYPE_RANGE_DATA(range_type)->low.data.const_val
1254 #define TYPE_HIGH_BOUND(range_type) \
1255 TYPE_RANGE_DATA(range_type)->high.data.const_val
1256 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1257 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1258 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1259 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1260 #define TYPE_HIGH_BOUND_KIND(range_type) \
1261 TYPE_RANGE_DATA(range_type)->high.kind
1262 #define TYPE_LOW_BOUND_KIND(range_type) \
1263 TYPE_RANGE_DATA(range_type)->low.kind
1265 /* Property accessors for the type data location. */
1266 #define TYPE_DATA_LOCATION(thistype) \
1267 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1268 #define TYPE_DATA_LOCATION_BATON(thistype) \
1269 TYPE_DATA_LOCATION (thistype)->data.baton
1270 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1271 TYPE_DATA_LOCATION (thistype)->data.const_val
1272 #define TYPE_DATA_LOCATION_KIND(thistype) \
1273 TYPE_DATA_LOCATION (thistype)->kind
1275 /* Property accessors for the type allocated/associated. */
1276 #define TYPE_ALLOCATED_PROP(thistype) \
1277 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1278 #define TYPE_ASSOCIATED_PROP(thistype) \
1279 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1281 /* Attribute accessors for dynamic properties. */
1282 #define TYPE_DYN_PROP_LIST(thistype) \
1283 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1284 #define TYPE_DYN_PROP_BATON(dynprop) \
1286 #define TYPE_DYN_PROP_ADDR(dynprop) \
1287 dynprop->data.const_val
1288 #define TYPE_DYN_PROP_KIND(dynprop) \
1292 /* Moto-specific stuff for FORTRAN arrays. */
1294 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1295 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1296 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1297 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1299 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1300 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1302 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1303 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1307 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1308 /* Do not call this, use TYPE_SELF_TYPE. */
1309 extern struct type *internal_type_self_type (struct type *);
1310 extern void set_type_self_type (struct type *, struct type *);
1312 extern int internal_type_vptr_fieldno (struct type *);
1313 extern void set_type_vptr_fieldno (struct type *, int);
1314 extern struct type *internal_type_vptr_basetype (struct type *);
1315 extern void set_type_vptr_basetype (struct type *, struct type *);
1316 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1317 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1319 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1320 #define TYPE_SPECIFIC_FIELD(thistype) \
1321 TYPE_MAIN_TYPE(thistype)->type_specific_field
1322 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1323 where we're trying to print an Ada array using the C language.
1324 In that case, there is no "cplus_stuff", but the C language assumes
1325 that there is. What we do, in that case, is pretend that there is
1326 an implicit one which is the default cplus stuff. */
1327 #define TYPE_CPLUS_SPECIFIC(thistype) \
1328 (!HAVE_CPLUS_STRUCT(thistype) \
1329 ? (struct cplus_struct_type*)&cplus_struct_default \
1330 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1331 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1332 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1333 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1334 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1335 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1336 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1337 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1338 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1339 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1340 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1341 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1342 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1343 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1344 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1346 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1347 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1348 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1350 #define FIELD_TYPE(thisfld) ((thisfld).type)
1351 #define FIELD_NAME(thisfld) ((thisfld).name)
1352 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1353 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1354 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1355 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1356 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1357 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1358 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1359 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1360 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1361 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1362 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1363 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1364 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1365 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1366 #define SET_FIELD_PHYSNAME(thisfld, name) \
1367 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1368 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1369 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1370 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1371 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1372 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1373 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1374 FIELD_DWARF_BLOCK (thisfld) = (addr))
1375 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1376 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1378 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1379 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1380 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1381 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1382 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1383 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1384 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1385 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1386 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1387 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1388 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1389 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1391 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1392 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1393 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1394 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1395 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1396 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1397 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1398 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1399 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1400 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1401 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1402 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1403 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1404 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1405 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1406 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1407 #define TYPE_FIELD_PRIVATE(thistype, n) \
1408 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1409 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1410 #define TYPE_FIELD_PROTECTED(thistype, n) \
1411 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1412 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1413 #define TYPE_FIELD_IGNORE(thistype, n) \
1414 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1415 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1416 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1417 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1418 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1420 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1421 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1422 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1423 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1424 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1426 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1427 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1428 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1429 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1430 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1431 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1433 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1434 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1435 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1436 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1437 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1438 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1439 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1440 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1441 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1442 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1443 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1444 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1445 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1446 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1447 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1449 /* Accessors for typedefs defined by a class. */
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
1460 #define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \
1461 TYPE_TYPEDEF_FIELD (thistype, n).is_protected
1462 #define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
1463 TYPE_TYPEDEF_FIELD (thistype, n).is_private
1465 #define TYPE_NESTED_TYPES_ARRAY(thistype) \
1466 TYPE_CPLUS_SPECIFIC (thistype)->nested_types
1467 #define TYPE_NESTED_TYPES_FIELD(thistype, n) \
1468 TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n]
1469 #define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \
1470 TYPE_NESTED_TYPES_FIELD (thistype, n).name
1471 #define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \
1472 TYPE_NESTED_TYPES_FIELD (thistype, n).type
1473 #define TYPE_NESTED_TYPES_COUNT(thistype) \
1474 TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count
1475 #define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \
1476 TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected
1477 #define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
1478 TYPE_NESTED_TYPES_FIELD (thistype, n).is_private
1480 #define TYPE_IS_OPAQUE(thistype) \
1481 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1482 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1483 && (TYPE_NFIELDS (thistype) == 0) \
1484 && (!HAVE_CPLUS_STRUCT (thistype) \
1485 || TYPE_NFN_FIELDS (thistype) == 0) \
1486 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1488 /* * A helper macro that returns the name of a type or "unnamed type"
1489 if the type has no name. */
1491 #define TYPE_SAFE_NAME(type) \
1492 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1494 /* * A helper macro that returns the name of an error type. If the
1495 type has a name, it is used; otherwise, a default is used. */
1497 #define TYPE_ERROR_NAME(type) \
1498 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1500 /* Given TYPE, return its floatformat. */
1501 const struct floatformat *floatformat_from_type (const struct type *type);
1505 /* Integral types. */
1507 /* Implicit size/sign (based on the architecture's ABI). */
1508 struct type *builtin_void;
1509 struct type *builtin_char;
1510 struct type *builtin_short;
1511 struct type *builtin_int;
1512 struct type *builtin_long;
1513 struct type *builtin_signed_char;
1514 struct type *builtin_unsigned_char;
1515 struct type *builtin_unsigned_short;
1516 struct type *builtin_unsigned_int;
1517 struct type *builtin_unsigned_long;
1518 struct type *builtin_float;
1519 struct type *builtin_double;
1520 struct type *builtin_long_double;
1521 struct type *builtin_complex;
1522 struct type *builtin_double_complex;
1523 struct type *builtin_string;
1524 struct type *builtin_bool;
1525 struct type *builtin_long_long;
1526 struct type *builtin_unsigned_long_long;
1527 struct type *builtin_decfloat;
1528 struct type *builtin_decdouble;
1529 struct type *builtin_declong;
1531 /* "True" character types.
1532 We use these for the '/c' print format, because c_char is just a
1533 one-byte integral type, which languages less laid back than C
1534 will print as ... well, a one-byte integral type. */
1535 struct type *builtin_true_char;
1536 struct type *builtin_true_unsigned_char;
1538 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1539 is for when an architecture needs to describe a register that has
1541 struct type *builtin_int0;
1542 struct type *builtin_int8;
1543 struct type *builtin_uint8;
1544 struct type *builtin_int16;
1545 struct type *builtin_uint16;
1546 struct type *builtin_int32;
1547 struct type *builtin_uint32;
1548 struct type *builtin_int64;
1549 struct type *builtin_uint64;
1550 struct type *builtin_int128;
1551 struct type *builtin_uint128;
1553 /* Wide character types. */
1554 struct type *builtin_char16;
1555 struct type *builtin_char32;
1556 struct type *builtin_wchar;
1558 /* Pointer types. */
1560 /* * `pointer to data' type. Some target platforms use an implicitly
1561 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1562 struct type *builtin_data_ptr;
1564 /* * `pointer to function (returning void)' type. Harvard
1565 architectures mean that ABI function and code pointers are not
1566 interconvertible. Similarly, since ANSI, C standards have
1567 explicitly said that pointers to functions and pointers to data
1568 are not interconvertible --- that is, you can't cast a function
1569 pointer to void * and back, and expect to get the same value.
1570 However, all function pointer types are interconvertible, so void
1571 (*) () can server as a generic function pointer. */
1573 struct type *builtin_func_ptr;
1575 /* * `function returning pointer to function (returning void)' type.
1576 The final void return type is not significant for it. */
1578 struct type *builtin_func_func;
1580 /* Special-purpose types. */
1582 /* * This type is used to represent a GDB internal function. */
1584 struct type *internal_fn;
1586 /* * This type is used to represent an xmethod. */
1587 struct type *xmethod;
1590 /* * Return the type table for the specified architecture. */
1592 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
1594 /* * Per-objfile types used by symbol readers. */
1598 /* Basic types based on the objfile architecture. */
1599 struct type *builtin_void;
1600 struct type *builtin_char;
1601 struct type *builtin_short;
1602 struct type *builtin_int;
1603 struct type *builtin_long;
1604 struct type *builtin_long_long;
1605 struct type *builtin_signed_char;
1606 struct type *builtin_unsigned_char;
1607 struct type *builtin_unsigned_short;
1608 struct type *builtin_unsigned_int;
1609 struct type *builtin_unsigned_long;
1610 struct type *builtin_unsigned_long_long;
1611 struct type *builtin_float;
1612 struct type *builtin_double;
1613 struct type *builtin_long_double;
1615 /* * This type is used to represent symbol addresses. */
1616 struct type *builtin_core_addr;
1618 /* * This type represents a type that was unrecognized in symbol
1620 struct type *builtin_error;
1622 /* * Types used for symbols with no debug information. */
1623 struct type *nodebug_text_symbol;
1624 struct type *nodebug_text_gnu_ifunc_symbol;
1625 struct type *nodebug_got_plt_symbol;
1626 struct type *nodebug_data_symbol;
1627 struct type *nodebug_unknown_symbol;
1628 struct type *nodebug_tls_symbol;
1631 /* * Return the type table for the specified objfile. */
1633 extern const struct objfile_type *objfile_type (struct objfile *objfile);
1635 /* Explicit floating-point formats. See "floatformat.h". */
1636 extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN];
1637 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
1638 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
1639 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
1640 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
1641 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
1642 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
1643 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
1644 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN];
1645 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
1646 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
1647 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
1650 /* * Allocate space for storing data associated with a particular
1651 type. We ensure that the space is allocated using the same
1652 mechanism that was used to allocate the space for the type
1653 structure itself. I.e. if the type is on an objfile's
1654 objfile_obstack, then the space for data associated with that type
1655 will also be allocated on the objfile_obstack. If the type is not
1656 associated with any particular objfile (such as builtin types),
1657 then the data space will be allocated with xmalloc, the same as for
1658 the type structure. */
1660 #define TYPE_ALLOC(t,size) \
1661 (TYPE_OBJFILE_OWNED (t) \
1662 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1665 #define TYPE_ZALLOC(t,size) \
1666 (TYPE_OBJFILE_OWNED (t) \
1667 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1671 /* Use alloc_type to allocate a type owned by an objfile. Use
1672 alloc_type_arch to allocate a type owned by an architecture. Use
1673 alloc_type_copy to allocate a type with the same owner as a
1674 pre-existing template type, no matter whether objfile or
1676 extern struct type *alloc_type (struct objfile *);
1677 extern struct type *alloc_type_arch (struct gdbarch *);
1678 extern struct type *alloc_type_copy (const struct type *);
1680 /* * Return the type's architecture. For types owned by an
1681 architecture, that architecture is returned. For types owned by an
1682 objfile, that objfile's architecture is returned. */
1684 extern struct gdbarch *get_type_arch (const struct type *);
1686 /* * This returns the target type (or NULL) of TYPE, also skipping
1689 extern struct type *get_target_type (struct type *type);
1691 /* Return the equivalent of TYPE_LENGTH, but in number of target
1692 addressable memory units of the associated gdbarch instead of bytes. */
1694 extern unsigned int type_length_units (struct type *type);
1696 /* * Helper function to construct objfile-owned types. */
1698 extern struct type *init_type (struct objfile *, enum type_code, int,
1700 extern struct type *init_integer_type (struct objfile *, int, int,
1702 extern struct type *init_character_type (struct objfile *, int, int,
1704 extern struct type *init_boolean_type (struct objfile *, int, int,
1706 extern struct type *init_float_type (struct objfile *, int, const char *,
1707 const struct floatformat **);
1708 extern struct type *init_decfloat_type (struct objfile *, int, const char *);
1709 extern struct type *init_complex_type (struct objfile *, const char *,
1711 extern struct type *init_pointer_type (struct objfile *, int, const char *,
1714 /* Helper functions to construct architecture-owned types. */
1715 extern struct type *arch_type (struct gdbarch *, enum type_code, int,
1717 extern struct type *arch_integer_type (struct gdbarch *, int, int,
1719 extern struct type *arch_character_type (struct gdbarch *, int, int,
1721 extern struct type *arch_boolean_type (struct gdbarch *, int, int,
1723 extern struct type *arch_float_type (struct gdbarch *, int, const char *,
1724 const struct floatformat **);
1725 extern struct type *arch_decfloat_type (struct gdbarch *, int, const char *);
1726 extern struct type *arch_complex_type (struct gdbarch *, const char *,
1728 extern struct type *arch_pointer_type (struct gdbarch *, int, const char *,
1731 /* Helper functions to construct a struct or record type. An
1732 initially empty type is created using arch_composite_type().
1733 Fields are then added using append_composite_type_field*(). A union
1734 type has its size set to the largest field. A struct type has each
1735 field packed against the previous. */
1737 extern struct type *arch_composite_type (struct gdbarch *gdbarch,
1738 const char *name, enum type_code code);
1739 extern void append_composite_type_field (struct type *t, const char *name,
1740 struct type *field);
1741 extern void append_composite_type_field_aligned (struct type *t,
1745 struct field *append_composite_type_field_raw (struct type *t, const char *name,
1746 struct type *field);
1748 /* Helper functions to construct a bit flags type. An initially empty
1749 type is created using arch_flag_type(). Flags are then added using
1750 append_flag_type_field() and append_flag_type_flag(). */
1751 extern struct type *arch_flags_type (struct gdbarch *gdbarch,
1752 const char *name, int bit);
1753 extern void append_flags_type_field (struct type *type,
1754 int start_bitpos, int nr_bits,
1755 struct type *field_type, const char *name);
1756 extern void append_flags_type_flag (struct type *type, int bitpos,
1759 extern void make_vector_type (struct type *array_type);
1760 extern struct type *init_vector_type (struct type *elt_type, int n);
1762 extern struct type *lookup_reference_type (struct type *, enum type_code);
1763 extern struct type *lookup_lvalue_reference_type (struct type *);
1764 extern struct type *lookup_rvalue_reference_type (struct type *);
1767 extern struct type *make_reference_type (struct type *, struct type **,
1770 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1772 extern struct type *make_restrict_type (struct type *);
1774 extern struct type *make_unqualified_type (struct type *);
1776 extern struct type *make_atomic_type (struct type *);
1778 extern void replace_type (struct type *, struct type *);
1780 extern int address_space_name_to_int (struct gdbarch *, char *);
1782 extern const char *address_space_int_to_name (struct gdbarch *, int);
1784 extern struct type *make_type_with_address_space (struct type *type,
1785 int space_identifier);
1787 extern struct type *lookup_memberptr_type (struct type *, struct type *);
1789 extern struct type *lookup_methodptr_type (struct type *);
1791 extern void smash_to_method_type (struct type *type, struct type *self_type,
1792 struct type *to_type, struct field *args,
1793 int nargs, int varargs);
1795 extern void smash_to_memberptr_type (struct type *, struct type *,
1798 extern void smash_to_methodptr_type (struct type *, struct type *);
1800 extern struct type *allocate_stub_method (struct type *);
1802 extern const char *type_name_no_tag (const struct type *);
1804 extern const char *type_name_no_tag_or_error (struct type *type);
1806 extern struct type *lookup_struct_elt_type (struct type *, const char *, int);
1808 extern struct type *make_pointer_type (struct type *, struct type **);
1810 extern struct type *lookup_pointer_type (struct type *);
1812 extern struct type *make_function_type (struct type *, struct type **);
1814 extern struct type *lookup_function_type (struct type *);
1816 extern struct type *lookup_function_type_with_arguments (struct type *,
1820 extern struct type *create_static_range_type (struct type *, struct type *,
1824 extern struct type *create_array_type_with_stride
1825 (struct type *, struct type *, struct type *,
1826 struct dynamic_prop *, unsigned int);
1828 extern struct type *create_range_type (struct type *, struct type *,
1829 const struct dynamic_prop *,
1830 const struct dynamic_prop *);
1832 extern struct type *create_array_type (struct type *, struct type *,
1835 extern struct type *lookup_array_range_type (struct type *, LONGEST, LONGEST);
1837 extern struct type *create_string_type (struct type *, struct type *,
1839 extern struct type *lookup_string_range_type (struct type *, LONGEST, LONGEST);
1841 extern struct type *create_set_type (struct type *, struct type *);
1843 extern struct type *lookup_unsigned_typename (const struct language_defn *,
1844 struct gdbarch *, const char *);
1846 extern struct type *lookup_signed_typename (const struct language_defn *,
1847 struct gdbarch *, const char *);
1849 extern void get_unsigned_type_max (struct type *, ULONGEST *);
1851 extern void get_signed_type_minmax (struct type *, LONGEST *, LONGEST *);
1853 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1854 ADDR specifies the location of the variable the type is bound to.
1855 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1856 static properties is returned. */
1857 extern struct type *resolve_dynamic_type (struct type *type,
1858 const gdb_byte *valaddr,
1861 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1862 extern int is_dynamic_type (struct type *type);
1864 /* * Return the dynamic property of the requested KIND from TYPE's
1865 list of dynamic properties. */
1866 extern struct dynamic_prop *get_dyn_prop
1867 (enum dynamic_prop_node_kind kind, const struct type *type);
1869 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1870 property to the given TYPE.
1872 This function assumes that TYPE is objfile-owned. */
1873 extern void add_dyn_prop
1874 (enum dynamic_prop_node_kind kind, struct dynamic_prop prop,
1877 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind,
1880 extern struct type *check_typedef (struct type *);
1882 extern void check_stub_method_group (struct type *, int);
1884 extern char *gdb_mangle_name (struct type *, int, int);
1886 extern struct type *lookup_typename (const struct language_defn *,
1887 struct gdbarch *, const char *,
1888 const struct block *, int);
1890 extern struct type *lookup_template_type (char *, struct type *,
1891 const struct block *);
1893 extern int get_vptr_fieldno (struct type *, struct type **);
1895 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1897 extern int get_array_bounds (struct type *type, LONGEST *low_bound,
1898 LONGEST *high_bound);
1900 extern int discrete_position (struct type *type, LONGEST val, LONGEST *pos);
1902 extern int class_types_same_p (const struct type *, const struct type *);
1904 extern int is_ancestor (struct type *, struct type *);
1906 extern int is_public_ancestor (struct type *, struct type *);
1908 extern int is_unique_ancestor (struct type *, struct value *);
1910 /* Overload resolution */
1912 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1914 /* * Badness if parameter list length doesn't match arg list length. */
1915 extern const struct rank LENGTH_MISMATCH_BADNESS;
1917 /* * Dummy badness value for nonexistent parameter positions. */
1918 extern const struct rank TOO_FEW_PARAMS_BADNESS;
1919 /* * Badness if no conversion among types. */
1920 extern const struct rank INCOMPATIBLE_TYPE_BADNESS;
1922 /* * Badness of an exact match. */
1923 extern const struct rank EXACT_MATCH_BADNESS;
1925 /* * Badness of integral promotion. */
1926 extern const struct rank INTEGER_PROMOTION_BADNESS;
1927 /* * Badness of floating promotion. */
1928 extern const struct rank FLOAT_PROMOTION_BADNESS;
1929 /* * Badness of converting a derived class pointer
1930 to a base class pointer. */
1931 extern const struct rank BASE_PTR_CONVERSION_BADNESS;
1932 /* * Badness of integral conversion. */
1933 extern const struct rank INTEGER_CONVERSION_BADNESS;
1934 /* * Badness of floating conversion. */
1935 extern const struct rank FLOAT_CONVERSION_BADNESS;
1936 /* * Badness of integer<->floating conversions. */
1937 extern const struct rank INT_FLOAT_CONVERSION_BADNESS;
1938 /* * Badness of conversion of pointer to void pointer. */
1939 extern const struct rank VOID_PTR_CONVERSION_BADNESS;
1940 /* * Badness of conversion to boolean. */
1941 extern const struct rank BOOL_CONVERSION_BADNESS;
1942 /* * Badness of converting derived to base class. */
1943 extern const struct rank BASE_CONVERSION_BADNESS;
1944 /* * Badness of converting from non-reference to reference. Subrank
1945 is the type of reference conversion being done. */
1946 extern const struct rank REFERENCE_CONVERSION_BADNESS;
1947 /* * Conversion to rvalue reference. */
1948 #define REFERENCE_CONVERSION_RVALUE 1
1949 /* * Conversion to const lvalue reference. */
1950 #define REFERENCE_CONVERSION_CONST_LVALUE 2
1952 /* * Badness of converting integer 0 to NULL pointer. */
1953 extern const struct rank NULL_POINTER_CONVERSION;
1954 /* * Badness of cv-conversion. Subrank is a flag describing the conversions
1956 extern const struct rank CV_CONVERSION_BADNESS;
1957 #define CV_CONVERSION_CONST 1
1958 #define CV_CONVERSION_VOLATILE 2
1960 /* Non-standard conversions allowed by the debugger */
1962 /* * Converting a pointer to an int is usually OK. */
1963 extern const struct rank NS_POINTER_CONVERSION_BADNESS;
1965 /* * Badness of converting a (non-zero) integer constant
1967 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS;
1969 extern struct rank sum_ranks (struct rank a, struct rank b);
1970 extern int compare_ranks (struct rank a, struct rank b);
1972 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1974 extern struct badness_vector *rank_function (struct type **, int,
1975 struct value **, int);
1977 extern struct rank rank_one_type (struct type *, struct type *,
1980 extern void recursive_dump_type (struct type *, int);
1982 extern int field_is_static (struct field *);
1986 extern void print_scalar_formatted (const gdb_byte *, struct type *,
1987 const struct value_print_options *,
1988 int, struct ui_file *);
1990 extern int can_dereference (struct type *);
1992 extern int is_integral_type (struct type *);
1994 extern int is_floating_type (struct type *);
1996 extern int is_scalar_type (struct type *type);
1998 extern int is_scalar_type_recursive (struct type *);
2000 extern int class_or_union_p (const struct type *);
2002 extern void maintenance_print_type (const char *, int);
2004 extern htab_t create_copied_types_hash (struct objfile *objfile);
2006 extern struct type *copy_type_recursive (struct objfile *objfile,
2008 htab_t copied_types);
2010 extern struct type *copy_type (const struct type *type);
2012 extern int types_equal (struct type *, struct type *);
2014 extern int types_deeply_equal (struct type *, struct type *);
2016 extern int type_not_allocated (const struct type *type);
2018 extern int type_not_associated (const struct type *type);
2020 #endif /* GDBTYPES_H */