2 /* Internal type definitions for GDB.
4 Copyright (C) 1992-2017 Free Software Foundation, Inc.
6 Contributed by Cygnus Support, using pieces from other GDB modules.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #if !defined (GDBTYPES_H)
26 /* * \page gdbtypes GDB Types
28 GDB represents all the different kinds of types in programming
29 languages using a common representation defined in gdbtypes.h.
31 The main data structure is main_type; it consists of a code (such
32 as #TYPE_CODE_ENUM for enumeration types), a number of
33 generally-useful fields such as the printable name, and finally a
34 field main_type::type_specific that is a union of info specific to
35 particular languages or other special cases (such as calling
38 The available type codes are defined in enum #type_code. The enum
39 includes codes both for types that are common across a variety
40 of languages, and for types that are language-specific.
42 Most accesses to type fields go through macros such as
43 #TYPE_CODE(thistype) and #TYPE_FN_FIELD_CONST(thisfn, n). These are
44 written such that they can be used as both rvalues and lvalues.
48 #include "common/offset-type.h"
49 #include "common/enum-flags.h"
51 /* Forward declarations for prototypes. */
54 struct value_print_options;
57 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
58 are already DWARF-specific. */
60 /* * Offset relative to the start of its containing CU (compilation
62 DEFINE_OFFSET_TYPE (cu_offset, unsigned int);
64 /* * Offset relative to the start of its .debug_info or .debug_types
66 DEFINE_OFFSET_TYPE (sect_offset, unsigned int);
68 /* Some macros for char-based bitfields. */
70 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
71 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
72 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
73 #define B_TYPE unsigned char
74 #define B_BYTES(x) ( 1 + ((x)>>3) )
75 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
77 /* * Different kinds of data types are distinguished by the `code'
82 TYPE_CODE_BITSTRING = -1, /**< Deprecated */
83 TYPE_CODE_UNDEF = 0, /**< Not used; catches errors */
84 TYPE_CODE_PTR, /**< Pointer type */
86 /* * Array type with lower & upper bounds.
88 Regardless of the language, GDB represents multidimensional
89 array types the way C does: as arrays of arrays. So an
90 instance of a GDB array type T can always be seen as a series
91 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
94 Row-major languages like C lay out multi-dimensional arrays so
95 that incrementing the rightmost index in a subscripting
96 expression results in the smallest change in the address of the
97 element referred to. Column-major languages like Fortran lay
98 them out so that incrementing the leftmost index results in the
101 This means that, in column-major languages, working our way
102 from type to target type corresponds to working through indices
103 from right to left, not left to right. */
106 TYPE_CODE_STRUCT, /**< C struct or Pascal record */
107 TYPE_CODE_UNION, /**< C union or Pascal variant part */
108 TYPE_CODE_ENUM, /**< Enumeration type */
109 TYPE_CODE_FLAGS, /**< Bit flags type */
110 TYPE_CODE_FUNC, /**< Function type */
111 TYPE_CODE_INT, /**< Integer type */
113 /* * Floating type. This is *NOT* a complex type. Beware, there
114 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
118 /* * Void type. The length field specifies the length (probably
119 always one) which is used in pointer arithmetic involving
120 pointers to this type, but actually dereferencing such a
121 pointer is invalid; a void type has no length and no actual
122 representation in memory or registers. A pointer to a void
123 type is a generic pointer. */
126 TYPE_CODE_SET, /**< Pascal sets */
127 TYPE_CODE_RANGE, /**< Range (integers within spec'd bounds). */
129 /* * A string type which is like an array of character but prints
130 differently. It does not contain a length field as Pascal
131 strings (for many Pascals, anyway) do; if we want to deal with
132 such strings, we should use a new type code. */
135 /* * Unknown type. The length field is valid if we were able to
136 deduce that much about the type, or 0 if we don't even know
141 TYPE_CODE_METHOD, /**< Method type */
143 /* * Pointer-to-member-function type. This describes how to access a
144 particular member function of a class (possibly a virtual
145 member function). The representation may vary between different
149 /* * Pointer-to-member type. This is the offset within a class to
150 some particular data member. The only currently supported
151 representation uses an unbiased offset, with -1 representing
152 NULL; this is used by the Itanium C++ ABI (used by GCC on all
156 TYPE_CODE_REF, /**< C++ Reference types */
158 TYPE_CODE_RVALUE_REF, /**< C++ rvalue reference types */
160 TYPE_CODE_CHAR, /**< *real* character type */
162 /* * Boolean type. 0 is false, 1 is true, and other values are
163 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
167 TYPE_CODE_COMPLEX, /**< Complex float */
171 TYPE_CODE_NAMESPACE, /**< C++ namespace. */
173 TYPE_CODE_DECFLOAT, /**< Decimal floating point. */
175 TYPE_CODE_MODULE, /**< Fortran module. */
177 /* * Internal function type. */
178 TYPE_CODE_INTERNAL_FUNCTION,
180 /* * Methods implemented in extension languages. */
184 /* * Some bits for the type's instance_flags word. See the macros
185 below for documentation on each bit. */
187 enum type_instance_flag_value
189 TYPE_INSTANCE_FLAG_CONST = (1 << 0),
190 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
191 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
192 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
193 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
194 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5),
195 TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6),
196 TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7),
197 TYPE_INSTANCE_FLAG_ATOMIC = (1 << 8)
200 DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags);
202 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
203 the type is signed (unless TYPE_NOSIGN (below) is set). */
205 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
207 /* * No sign for this type. In C++, "char", "signed char", and
208 "unsigned char" are distinct types; so we need an extra flag to
209 indicate the absence of a sign! */
211 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
213 /* * This appears in a type's flags word if it is a stub type (e.g.,
214 if someone referenced a type that wasn't defined in a source file
215 via (struct sir_not_appearing_in_this_film *)). */
217 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
219 /* * The target type of this type is a stub type, and this type needs
220 to be updated if it gets un-stubbed in check_typedef. Used for
221 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
222 based on the TYPE_LENGTH of the target type. Also, set for
223 TYPE_CODE_TYPEDEF. */
225 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
227 /* * This is a function type which appears to have a prototype. We
228 need this for function calls in order to tell us if it's necessary
229 to coerce the args, or to just do the standard conversions. This
230 is used with a short field. */
232 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
234 /* * This flag is used to indicate that processing for this type
237 (Mostly intended for HP platforms, where class methods, for
238 instance, can be encountered before their classes in the debug
239 info; the incomplete type has to be marked so that the class and
240 the method can be assigned correct types.) */
242 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
244 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
247 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
249 /* * Identify a vector type. Gcc is handling this by adding an extra
250 attribute to the array type. We slurp that in as a new flag of a
251 type. This is used only in dwarf2read.c. */
252 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
254 /* * The debugging formats (especially STABS) do not contain enough
255 information to represent all Ada types---especially those whose
256 size depends on dynamic quantities. Therefore, the GNAT Ada
257 compiler includes extra information in the form of additional type
258 definitions connected by naming conventions. This flag indicates
259 that the type is an ordinary (unencoded) GDB type that has been
260 created from the necessary run-time information, and does not need
261 further interpretation. Optionally marks ordinary, fixed-size GDB
264 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
266 /* * This debug target supports TYPE_STUB(t). In the unsupported case
267 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
268 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
269 guessed the TYPE_STUB(t) value (see dwarfread.c). */
271 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
273 /* * Not textual. By default, GDB treats all single byte integers as
274 characters (or elements of strings) unless this flag is set. */
276 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
278 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
279 address is returned by this function call. TYPE_TARGET_TYPE
280 determines the final returned function type to be presented to
283 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
285 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
286 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
287 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
289 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
290 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
291 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
293 /* * True if this type was declared using the "class" keyword. This is
294 only valid for C++ structure and enum types. If false, a structure
295 was declared as a "struct"; if true it was declared "class". For
296 enum types, this is true when "enum class" or "enum struct" was
297 used to declare the type.. */
299 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
301 /* * True if this type is a "flag" enum. A flag enum is one where all
302 the values are pairwise disjoint when "and"ed together. This
303 affects how enum values are printed. */
305 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
307 /* * Constant type. If this is set, the corresponding type has a
310 #define TYPE_CONST(t) ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST) != 0)
312 /* * Volatile type. If this is set, the corresponding type has a
313 volatile modifier. */
315 #define TYPE_VOLATILE(t) \
316 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE) != 0)
318 /* * Restrict type. If this is set, the corresponding type has a
319 restrict modifier. */
321 #define TYPE_RESTRICT(t) \
322 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT) != 0)
324 /* * Atomic type. If this is set, the corresponding type has an
327 #define TYPE_ATOMIC(t) \
328 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_ATOMIC) != 0)
330 /* * True if this type represents either an lvalue or lvalue reference type. */
332 #define TYPE_IS_REFERENCE(t) \
333 (TYPE_CODE (t) == TYPE_CODE_REF || TYPE_CODE (t) == TYPE_CODE_RVALUE_REF)
335 /* * Instruction-space delimited type. This is for Harvard architectures
336 which have separate instruction and data address spaces (and perhaps
339 GDB usually defines a flat address space that is a superset of the
340 architecture's two (or more) address spaces, but this is an extension
341 of the architecture's model.
343 If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
344 resides in instruction memory, even if its address (in the extended
345 flat address space) does not reflect this.
347 Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
348 corresponding type resides in the data memory space, even if
349 this is not indicated by its (flat address space) address.
351 If neither flag is set, the default space for functions / methods
352 is instruction space, and for data objects is data memory. */
354 #define TYPE_CODE_SPACE(t) \
355 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE) != 0)
357 #define TYPE_DATA_SPACE(t) \
358 ((TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE) != 0)
360 /* * Address class flags. Some environments provide for pointers
361 whose size is different from that of a normal pointer or address
362 types where the bits are interpreted differently than normal
363 addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
364 target specific ways to represent these different types of address
367 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
368 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
369 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
370 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
371 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
372 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
373 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
374 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
376 enum dynamic_prop_kind
378 PROP_UNDEFINED, /* Not defined. */
379 PROP_CONST, /* Constant. */
380 PROP_ADDR_OFFSET, /* Address offset. */
381 PROP_LOCEXPR, /* Location expression. */
382 PROP_LOCLIST /* Location list. */
385 union dynamic_prop_data
387 /* Storage for constant property. */
391 /* Storage for dynamic property. */
396 /* * Used to store a dynamic property. */
400 /* Determine which field of the union dynamic_prop.data is used. */
401 enum dynamic_prop_kind kind;
403 /* Storage for dynamic or static value. */
404 union dynamic_prop_data data;
407 /* * Define a type's dynamic property node kind. */
408 enum dynamic_prop_node_kind
410 /* A property providing a type's data location.
411 Evaluating this field yields to the location of an object's data. */
412 DYN_PROP_DATA_LOCATION,
414 /* A property representing DW_AT_allocated. The presence of this attribute
415 indicates that the object of the type can be allocated/deallocated. */
418 /* A property representing DW_AT_allocated. The presence of this attribute
419 indicated that the object of the type can be associated. */
423 /* * List for dynamic type attributes. */
424 struct dynamic_prop_list
426 /* The kind of dynamic prop in this node. */
427 enum dynamic_prop_node_kind prop_kind;
429 /* The dynamic property itself. */
430 struct dynamic_prop prop;
432 /* A pointer to the next dynamic property. */
433 struct dynamic_prop_list *next;
436 /* * Determine which field of the union main_type.fields[x].loc is
441 FIELD_LOC_KIND_BITPOS, /**< bitpos */
442 FIELD_LOC_KIND_ENUMVAL, /**< enumval */
443 FIELD_LOC_KIND_PHYSADDR, /**< physaddr */
444 FIELD_LOC_KIND_PHYSNAME, /**< physname */
445 FIELD_LOC_KIND_DWARF_BLOCK /**< dwarf_block */
448 /* * A discriminant to determine which field in the
449 main_type.type_specific union is being used, if any.
451 For types such as TYPE_CODE_FLT, the use of this
452 discriminant is really redundant, as we know from the type code
453 which field is going to be used. As such, it would be possible to
454 reduce the size of this enum in order to save a bit or two for
455 other fields of struct main_type. But, since we still have extra
456 room , and for the sake of clarity and consistency, we treat all fields
457 of the union the same way. */
459 enum type_specific_kind
462 TYPE_SPECIFIC_CPLUS_STUFF,
463 TYPE_SPECIFIC_GNAT_STUFF,
464 TYPE_SPECIFIC_FLOATFORMAT,
465 /* Note: This is used by TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
467 TYPE_SPECIFIC_SELF_TYPE
472 struct objfile *objfile;
473 struct gdbarch *gdbarch;
478 /* * Position of this field, counting in bits from start of
479 containing structure. For gdbarch_bits_big_endian=1
480 targets, it is the bit offset to the MSB. For
481 gdbarch_bits_big_endian=0 targets, it is the bit offset to
489 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
490 physaddr is the location (in the target) of the static
491 field. Otherwise, physname is the mangled label of the
495 const char *physname;
497 /* * The field location can be computed by evaluating the
498 following DWARF block. Its DATA is allocated on
499 objfile_obstack - no CU load is needed to access it. */
501 struct dwarf2_locexpr_baton *dwarf_block;
506 union field_location loc;
508 /* * For a function or member type, this is 1 if the argument is
509 marked artificial. Artificial arguments should not be shown
510 to the user. For TYPE_CODE_RANGE it is set if the specific
511 bound is not defined. */
513 unsigned int artificial : 1;
515 /* * Discriminant for union field_location. */
517 ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
519 /* * Size of this field, in bits, or zero if not packed.
520 If non-zero in an array type, indicates the element size in
521 bits (used only in Ada at the moment).
522 For an unpacked field, the field's type's length
523 says how many bytes the field occupies. */
525 unsigned int bitsize : 28;
527 /* * In a struct or union type, type of this field.
528 - In a function or member type, type of this argument.
529 - In an array type, the domain-type of the array. */
533 /* * Name of field, value or argument.
534 NULL for range bounds, array domains, and member function
542 /* * Low bound of range. */
544 struct dynamic_prop low;
546 /* * High bound of range. */
548 struct dynamic_prop high;
550 /* True if HIGH range bound contains the number of elements in the
551 subrange. This affects how the final hight bound is computed. */
553 int flag_upper_bound_is_count : 1;
555 /* True if LOW or/and HIGH are resolved into a static bound from
558 int flag_bound_evaluated : 1;
563 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
564 point to cplus_struct_default, a default static instance of a
565 struct cplus_struct_type. */
567 struct cplus_struct_type *cplus_stuff;
569 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
570 provides additional information. */
572 struct gnat_aux_type *gnat_stuff;
574 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to a
575 floatformat object that describes the floating-point value
576 that resides within the type. */
578 const struct floatformat *floatformat;
580 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
582 struct func_type *func_stuff;
584 /* * For types that are pointer to member types (TYPE_CODE_METHODPTR,
585 TYPE_CODE_MEMBERPTR), SELF_TYPE is the type that this pointer
588 struct type *self_type;
591 /* * Main structure representing a type in GDB.
593 This structure is space-critical. Its layout has been tweaked to
594 reduce the space used. */
598 /* * Code for kind of type. */
600 ENUM_BITFIELD(type_code) code : 8;
602 /* * Flags about this type. These fields appear at this location
603 because they packs nicely here. See the TYPE_* macros for
604 documentation about these fields. */
606 unsigned int flag_unsigned : 1;
607 unsigned int flag_nosign : 1;
608 unsigned int flag_stub : 1;
609 unsigned int flag_target_stub : 1;
610 unsigned int flag_static : 1;
611 unsigned int flag_prototyped : 1;
612 unsigned int flag_incomplete : 1;
613 unsigned int flag_varargs : 1;
614 unsigned int flag_vector : 1;
615 unsigned int flag_stub_supported : 1;
616 unsigned int flag_gnu_ifunc : 1;
617 unsigned int flag_fixed_instance : 1;
618 unsigned int flag_objfile_owned : 1;
620 /* * True if this type was declared with "class" rather than
623 unsigned int flag_declared_class : 1;
625 /* * True if this is an enum type with disjoint values. This
626 affects how the enum is printed. */
628 unsigned int flag_flag_enum : 1;
630 /* * A discriminant telling us which field of the type_specific
631 union is being used for this type, if any. */
633 ENUM_BITFIELD(type_specific_kind) type_specific_field : 3;
635 /* * Number of fields described for this type. This field appears
636 at this location because it packs nicely here. */
640 /* * Name of this type, or NULL if none.
642 This is used for printing only, except by poorly designed C++
643 code. For looking up a name, look for a symbol in the
644 VAR_DOMAIN. This is generally allocated in the objfile's
645 obstack. However coffread.c uses malloc. */
649 /* * Tag name for this type, or NULL if none. This means that the
650 name of the type consists of a keyword followed by the tag name.
651 Which keyword is determined by the type code ("struct" for
652 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
653 languages with this feature.
655 This is used for printing only, except by poorly designed C++ code.
656 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
657 One more legitimate use is that if TYPE_STUB is set, this is
658 the name to use to look for definitions in other files. */
660 const char *tag_name;
662 /* * Every type is now associated with a particular objfile, and the
663 type is allocated on the objfile_obstack for that objfile. One
664 problem however, is that there are times when gdb allocates new
665 types while it is not in the process of reading symbols from a
666 particular objfile. Fortunately, these happen when the type
667 being created is a derived type of an existing type, such as in
668 lookup_pointer_type(). So we can just allocate the new type
669 using the same objfile as the existing type, but to do this we
670 need a backpointer to the objfile from the existing type. Yes
671 this is somewhat ugly, but without major overhaul of the internal
672 type system, it can't be avoided for now. */
674 union type_owner owner;
676 /* * For a pointer type, describes the type of object pointed to.
677 - For an array type, describes the type of the elements.
678 - For a function or method type, describes the type of the return value.
679 - For a range type, describes the type of the full range.
680 - For a complex type, describes the type of each coordinate.
681 - For a special record or union type encoding a dynamic-sized type
682 in GNAT, a memoized pointer to a corresponding static version of
684 - Unused otherwise. */
686 struct type *target_type;
688 /* * For structure and union types, a description of each field.
689 For set and pascal array types, there is one "field",
690 whose type is the domain type of the set or array.
691 For range types, there are two "fields",
692 the minimum and maximum values (both inclusive).
693 For enum types, each possible value is described by one "field".
694 For a function or method type, a "field" for each parameter.
695 For C++ classes, there is one field for each base class (if it is
696 a derived class) plus one field for each class data member. Member
697 functions are recorded elsewhere.
699 Using a pointer to a separate array of fields
700 allows all types to have the same size, which is useful
701 because we can allocate the space for a type before
702 we know what to put in it. */
706 struct field *fields;
708 /* * Union member used for range types. */
710 struct range_bounds *bounds;
714 /* * Slot to point to additional language-specific fields of this
717 union type_specific type_specific;
719 /* * Contains all dynamic type properties. */
720 struct dynamic_prop_list *dyn_prop_list;
723 /* * A ``struct type'' describes a particular instance of a type, with
724 some particular qualification. */
728 /* * Type that is a pointer to this type.
729 NULL if no such pointer-to type is known yet.
730 The debugger may add the address of such a type
731 if it has to construct one later. */
733 struct type *pointer_type;
735 /* * C++: also need a reference type. */
737 struct type *reference_type;
739 /* * A C++ rvalue reference type added in C++11. */
741 struct type *rvalue_reference_type;
743 /* * Variant chain. This points to a type that differs from this
744 one only in qualifiers and length. Currently, the possible
745 qualifiers are const, volatile, code-space, data-space, and
746 address class. The length may differ only when one of the
747 address class flags are set. The variants are linked in a
748 circular ring and share MAIN_TYPE. */
752 /* * Flags specific to this instance of the type, indicating where
755 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
756 binary or-ed with the target type, with a special case for
757 address class and space class. For example if this typedef does
758 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
759 instance flags are completely inherited from the target type. No
760 qualifiers can be cleared by the typedef. See also
764 /* * Length of storage for a value of this type. The value is the
765 expression in host bytes of what sizeof(type) would return. This
766 size includes padding. For example, an i386 extended-precision
767 floating point value really only occupies ten bytes, but most
768 ABI's declare its size to be 12 bytes, to preserve alignment.
769 A `struct type' representing such a floating-point type would
770 have a `length' value of 12, even though the last two bytes are
773 Since this field is expressed in host bytes, its value is appropriate
774 to pass to memcpy and such (it is assumed that GDB itself always runs
775 on an 8-bits addressable architecture). However, when using it for
776 target address arithmetic (e.g. adding it to a target address), the
777 type_length_units function should be used in order to get the length
778 expressed in target addressable memory units. */
782 /* * Core type, shared by a group of qualified types. */
784 struct main_type *main_type;
787 #define NULL_TYPE ((struct type *) 0)
792 /* * The overloaded name.
793 This is generally allocated in the objfile's obstack.
794 However stabsread.c sometimes uses malloc. */
798 /* * The number of methods with this name. */
802 /* * The list of methods. */
804 struct fn_field *fn_fields;
811 /* * If is_stub is clear, this is the mangled name which we can look
812 up to find the address of the method (FIXME: it would be cleaner
813 to have a pointer to the struct symbol here instead).
815 If is_stub is set, this is the portion of the mangled name which
816 specifies the arguments. For example, "ii", if there are two int
817 arguments, or "" if there are no arguments. See gdb_mangle_name
818 for the conversion from this format to the one used if is_stub is
821 const char *physname;
823 /* * The function type for the method.
825 (This comment used to say "The return value of the method", but
826 that's wrong. The function type is expected here, i.e. something
827 with TYPE_CODE_METHOD, and *not* the return-value type). */
831 /* * For virtual functions. First baseclass that defines this
834 struct type *fcontext;
838 unsigned int is_const:1;
839 unsigned int is_volatile:1;
840 unsigned int is_private:1;
841 unsigned int is_protected:1;
842 unsigned int is_artificial:1;
844 /* * A stub method only has some fields valid (but they are enough
845 to reconstruct the rest of the fields). */
847 unsigned int is_stub:1;
849 /* * True if this function is a constructor, false otherwise. */
851 unsigned int is_constructor : 1;
855 unsigned int dummy:9;
857 /* * Index into that baseclass's virtual function table, minus 2;
858 else if static: VOFFSET_STATIC; else: 0. */
860 unsigned int voffset:16;
862 #define VOFFSET_STATIC 1
868 /* * Unqualified name to be prefixed by owning class qualified
873 /* * Type this typedef named NAME represents. */
877 /* * True if this field was declared protected, false otherwise. */
878 unsigned int is_protected : 1;
880 /* * True if this field was declared private, false otherwise. */
881 unsigned int is_private : 1;
884 /* * C++ language-specific information for TYPE_CODE_STRUCT and
885 TYPE_CODE_UNION nodes. */
887 struct cplus_struct_type
889 /* * Number of base classes this type derives from. The
890 baseclasses are stored in the first N_BASECLASSES fields
891 (i.e. the `fields' field of the struct type). The only fields
892 of struct field that are used are: type, name, loc.bitpos. */
896 /* * Field number of the virtual function table pointer in VPTR_BASETYPE.
897 All access to this field must be through TYPE_VPTR_FIELDNO as one
898 thing it does is check whether the field has been initialized.
899 Initially TYPE_RAW_CPLUS_SPECIFIC has the value of cplus_struct_default,
900 which for portability reasons doesn't initialize this field.
901 TYPE_VPTR_FIELDNO returns -1 for this case.
903 If -1, we were unable to find the virtual function table pointer in
904 initial symbol reading, and get_vptr_fieldno should be called to find
905 it if possible. get_vptr_fieldno will update this field if possible.
906 Otherwise the value is left at -1.
908 Unused if this type does not have virtual functions. */
912 /* * Number of methods with unique names. All overloaded methods
913 with the same name count only once. */
917 /* * Number of template arguments. */
919 unsigned short n_template_arguments;
921 /* * One if this struct is a dynamic class, as defined by the
922 Itanium C++ ABI: if it requires a virtual table pointer,
923 because it or any of its base classes have one or more virtual
924 member functions or virtual base classes. Minus one if not
925 dynamic. Zero if not yet computed. */
929 /* * The base class which defined the virtual function table pointer. */
931 struct type *vptr_basetype;
933 /* * For derived classes, the number of base classes is given by
934 n_baseclasses and virtual_field_bits is a bit vector containing
935 one bit per base class. If the base class is virtual, the
936 corresponding bit will be set.
941 class C : public B, public virtual A {};
943 B is a baseclass of C; A is a virtual baseclass for C.
944 This is a C++ 2.0 language feature. */
946 B_TYPE *virtual_field_bits;
948 /* * For classes with private fields, the number of fields is
949 given by nfields and private_field_bits is a bit vector
950 containing one bit per field.
952 If the field is private, the corresponding bit will be set. */
954 B_TYPE *private_field_bits;
956 /* * For classes with protected fields, the number of fields is
957 given by nfields and protected_field_bits is a bit vector
958 containing one bit per field.
960 If the field is private, the corresponding bit will be set. */
962 B_TYPE *protected_field_bits;
964 /* * For classes with fields to be ignored, either this is
965 optimized out or this field has length 0. */
967 B_TYPE *ignore_field_bits;
969 /* * For classes, structures, and unions, a description of each
970 field, which consists of an overloaded name, followed by the
971 types of arguments that the method expects, and then the name
972 after it has been renamed to make it distinct.
974 fn_fieldlists points to an array of nfn_fields of these. */
976 struct fn_fieldlist *fn_fieldlists;
978 /* * typedefs defined inside this class. typedef_field points to
979 an array of typedef_field_count elements. */
981 struct decl_field *typedef_field;
983 unsigned typedef_field_count;
985 /* * The nested types defined by this type. nested_types points to
986 an array of nested_types_count elements. */
988 struct decl_field *nested_types;
990 unsigned nested_types_count;
992 /* * The template arguments. This is an array with
993 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
996 struct symbol **template_arguments;
999 /* * Struct used to store conversion rankings. */
1005 /* * When two conversions are of the same type and therefore have
1006 the same rank, subrank is used to differentiate the two.
1008 Eg: Two derived-class-pointer to base-class-pointer conversions
1009 would both have base pointer conversion rank, but the
1010 conversion with the shorter distance to the ancestor is
1011 preferable. 'subrank' would be used to reflect that. */
1016 /* * Struct used for ranking a function for overload resolution. */
1018 struct badness_vector
1024 /* * GNAT Ada-specific information for various Ada types. */
1026 struct gnat_aux_type
1028 /* * Parallel type used to encode information about dynamic types
1029 used in Ada (such as variant records, variable-size array,
1031 struct type* descriptive_type;
1034 /* * For TYPE_CODE_FUNC and TYPE_CODE_METHOD types. */
1038 /* * The calling convention for targets supporting multiple ABIs.
1039 Right now this is only fetched from the Dwarf-2
1040 DW_AT_calling_convention attribute. The value is one of the
1041 DW_CC enum dwarf_calling_convention constants. */
1043 unsigned calling_convention : 8;
1045 /* * Whether this function normally returns to its caller. It is
1046 set from the DW_AT_noreturn attribute if set on the
1047 DW_TAG_subprogram. */
1049 unsigned int is_noreturn : 1;
1051 /* * Only those DW_TAG_call_site's in this function that have
1052 DW_AT_call_tail_call set are linked in this list. Function
1053 without its tail call list complete
1054 (DW_AT_call_all_tail_calls or its superset
1055 DW_AT_call_all_calls) has TAIL_CALL_LIST NULL, even if some
1056 DW_TAG_call_site's exist in such function. */
1058 struct call_site *tail_call_list;
1060 /* * For method types (TYPE_CODE_METHOD), the aggregate type that
1061 contains the method. */
1063 struct type *self_type;
1066 /* struct call_site_parameter can be referenced in callees by several ways. */
1068 enum call_site_parameter_kind
1070 /* * Use field call_site_parameter.u.dwarf_reg. */
1071 CALL_SITE_PARAMETER_DWARF_REG,
1073 /* * Use field call_site_parameter.u.fb_offset. */
1074 CALL_SITE_PARAMETER_FB_OFFSET,
1076 /* * Use field call_site_parameter.u.param_offset. */
1077 CALL_SITE_PARAMETER_PARAM_OFFSET
1080 struct call_site_target
1082 union field_location loc;
1084 /* * Discriminant for union field_location. */
1086 ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
1089 union call_site_parameter_u
1091 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1092 as DWARF register number, for register passed
1097 /* * Offset from the callee's frame base, for stack passed
1098 parameters. This equals offset from the caller's stack
1101 CORE_ADDR fb_offset;
1103 /* * Offset relative to the start of this PER_CU to
1104 DW_TAG_formal_parameter which is referenced by both
1105 caller and the callee. */
1107 cu_offset param_cu_off;
1110 struct call_site_parameter
1112 ENUM_BITFIELD (call_site_parameter_kind) kind : 2;
1114 union call_site_parameter_u u;
1116 /* * DW_TAG_formal_parameter's DW_AT_call_value. It is never NULL. */
1118 const gdb_byte *value;
1121 /* * DW_TAG_formal_parameter's DW_AT_call_data_value.
1122 It may be NULL if not provided by DWARF. */
1124 const gdb_byte *data_value;
1125 size_t data_value_size;
1128 /* * A place where a function gets called from, represented by
1129 DW_TAG_call_site. It can be looked up from symtab->call_site_htab. */
1133 /* * Address of the first instruction after this call. It must be
1134 the first field as we overload core_addr_hash and core_addr_eq
1139 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1141 struct call_site *tail_call_next;
1143 /* * Describe DW_AT_call_target. Missing attribute uses
1144 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1146 struct call_site_target target;
1148 /* * Size of the PARAMETER array. */
1150 unsigned parameter_count;
1152 /* * CU of the function where the call is located. It gets used
1153 for DWARF blocks execution in the parameter array below. */
1155 struct dwarf2_per_cu_data *per_cu;
1157 /* * Describe DW_TAG_call_site's DW_TAG_formal_parameter. */
1159 struct call_site_parameter parameter[1];
1162 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1163 static structure. */
1165 extern const struct cplus_struct_type cplus_struct_default;
1167 extern void allocate_cplus_struct_type (struct type *);
1169 #define INIT_CPLUS_SPECIFIC(type) \
1170 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1171 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1172 &cplus_struct_default)
1174 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1176 #define HAVE_CPLUS_STRUCT(type) \
1177 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1178 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1180 extern const struct gnat_aux_type gnat_aux_default;
1182 extern void allocate_gnat_aux_type (struct type *);
1184 #define INIT_GNAT_SPECIFIC(type) \
1185 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1186 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1187 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1188 /* * A macro that returns non-zero if the type-specific data should be
1189 read as "gnat-stuff". */
1190 #define HAVE_GNAT_AUX_INFO(type) \
1191 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1193 #define INIT_FUNC_SPECIFIC(type) \
1194 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1195 TYPE_MAIN_TYPE (type)->type_specific.func_stuff = (struct func_type *) \
1196 TYPE_ZALLOC (type, \
1197 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1199 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1200 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1201 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1202 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1203 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1204 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1205 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1206 #define TYPE_RVALUE_REFERENCE_TYPE(thistype) (thistype)->rvalue_reference_type
1207 #define TYPE_CHAIN(thistype) (thistype)->chain
1208 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1209 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1210 so you only have to call check_typedef once. Since allocate_value
1211 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1212 #define TYPE_LENGTH(thistype) (thistype)->length
1213 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1214 type, you need to do TYPE_CODE (check_type (this_type)). */
1215 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1216 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1217 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1219 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1220 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1221 #define TYPE_LOW_BOUND(range_type) \
1222 TYPE_RANGE_DATA(range_type)->low.data.const_val
1223 #define TYPE_HIGH_BOUND(range_type) \
1224 TYPE_RANGE_DATA(range_type)->high.data.const_val
1225 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1226 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1227 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1228 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1229 #define TYPE_HIGH_BOUND_KIND(range_type) \
1230 TYPE_RANGE_DATA(range_type)->high.kind
1231 #define TYPE_LOW_BOUND_KIND(range_type) \
1232 TYPE_RANGE_DATA(range_type)->low.kind
1234 /* Property accessors for the type data location. */
1235 #define TYPE_DATA_LOCATION(thistype) \
1236 get_dyn_prop (DYN_PROP_DATA_LOCATION, thistype)
1237 #define TYPE_DATA_LOCATION_BATON(thistype) \
1238 TYPE_DATA_LOCATION (thistype)->data.baton
1239 #define TYPE_DATA_LOCATION_ADDR(thistype) \
1240 TYPE_DATA_LOCATION (thistype)->data.const_val
1241 #define TYPE_DATA_LOCATION_KIND(thistype) \
1242 TYPE_DATA_LOCATION (thistype)->kind
1244 /* Property accessors for the type allocated/associated. */
1245 #define TYPE_ALLOCATED_PROP(thistype) \
1246 get_dyn_prop (DYN_PROP_ALLOCATED, thistype)
1247 #define TYPE_ASSOCIATED_PROP(thistype) \
1248 get_dyn_prop (DYN_PROP_ASSOCIATED, thistype)
1250 /* Attribute accessors for dynamic properties. */
1251 #define TYPE_DYN_PROP_LIST(thistype) \
1252 TYPE_MAIN_TYPE(thistype)->dyn_prop_list
1253 #define TYPE_DYN_PROP_BATON(dynprop) \
1255 #define TYPE_DYN_PROP_ADDR(dynprop) \
1256 dynprop->data.const_val
1257 #define TYPE_DYN_PROP_KIND(dynprop) \
1261 /* Moto-specific stuff for FORTRAN arrays. */
1263 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1264 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1265 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1266 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1268 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1269 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1271 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1272 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1276 #define TYPE_SELF_TYPE(thistype) internal_type_self_type (thistype)
1277 /* Do not call this, use TYPE_SELF_TYPE. */
1278 extern struct type *internal_type_self_type (struct type *);
1279 extern void set_type_self_type (struct type *, struct type *);
1281 extern int internal_type_vptr_fieldno (struct type *);
1282 extern void set_type_vptr_fieldno (struct type *, int);
1283 extern struct type *internal_type_vptr_basetype (struct type *);
1284 extern void set_type_vptr_basetype (struct type *, struct type *);
1285 #define TYPE_VPTR_FIELDNO(thistype) internal_type_vptr_fieldno (thistype)
1286 #define TYPE_VPTR_BASETYPE(thistype) internal_type_vptr_basetype (thistype)
1288 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1289 #define TYPE_SPECIFIC_FIELD(thistype) \
1290 TYPE_MAIN_TYPE(thistype)->type_specific_field
1291 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1292 where we're trying to print an Ada array using the C language.
1293 In that case, there is no "cplus_stuff", but the C language assumes
1294 that there is. What we do, in that case, is pretend that there is
1295 an implicit one which is the default cplus stuff. */
1296 #define TYPE_CPLUS_SPECIFIC(thistype) \
1297 (!HAVE_CPLUS_STRUCT(thistype) \
1298 ? (struct cplus_struct_type*)&cplus_struct_default \
1299 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1300 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1301 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1302 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1303 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1304 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1305 #define TYPE_NO_RETURN(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->is_noreturn
1306 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1307 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1308 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1309 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1310 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1311 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1312 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1313 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1315 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1316 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1317 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1319 #define FIELD_TYPE(thisfld) ((thisfld).type)
1320 #define FIELD_NAME(thisfld) ((thisfld).name)
1321 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1322 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1323 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1324 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1325 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1326 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1327 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1328 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1329 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1330 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1331 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1332 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1333 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1334 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1335 #define SET_FIELD_PHYSNAME(thisfld, name) \
1336 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1337 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1338 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1339 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1340 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1341 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1342 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1343 FIELD_DWARF_BLOCK (thisfld) = (addr))
1344 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1345 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1347 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1348 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1349 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1350 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1351 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1352 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1353 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1354 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1355 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1356 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1357 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1358 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1360 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1361 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1362 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1363 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1364 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1365 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1366 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1367 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1368 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1369 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1370 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1371 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1372 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1373 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1374 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1375 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1376 #define TYPE_FIELD_PRIVATE(thistype, n) \
1377 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1378 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1379 #define TYPE_FIELD_PROTECTED(thistype, n) \
1380 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1381 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1382 #define TYPE_FIELD_IGNORE(thistype, n) \
1383 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1384 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1385 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1386 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1387 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1389 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1390 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1391 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1392 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1393 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1395 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1396 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1397 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1398 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1399 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1400 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1402 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1403 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1404 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1405 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1406 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1407 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1408 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1409 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1410 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1411 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1412 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1413 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1414 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1415 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1416 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1418 /* Accessors for typedefs defined by a class. */
1419 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1420 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1421 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1422 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1423 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1424 TYPE_TYPEDEF_FIELD (thistype, n).name
1425 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1426 TYPE_TYPEDEF_FIELD (thistype, n).type
1427 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1428 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1429 #define TYPE_TYPEDEF_FIELD_PROTECTED(thistype, n) \
1430 TYPE_TYPEDEF_FIELD (thistype, n).is_protected
1431 #define TYPE_TYPEDEF_FIELD_PRIVATE(thistype, n) \
1432 TYPE_TYPEDEF_FIELD (thistype, n).is_private
1434 #define TYPE_NESTED_TYPES_ARRAY(thistype) \
1435 TYPE_CPLUS_SPECIFIC (thistype)->nested_types
1436 #define TYPE_NESTED_TYPES_FIELD(thistype, n) \
1437 TYPE_CPLUS_SPECIFIC (thistype)->nested_types[n]
1438 #define TYPE_NESTED_TYPES_FIELD_NAME(thistype, n) \
1439 TYPE_NESTED_TYPES_FIELD (thistype, n).name
1440 #define TYPE_NESTED_TYPES_FIELD_TYPE(thistype, n) \
1441 TYPE_NESTED_TYPES_FIELD (thistype, n).type
1442 #define TYPE_NESTED_TYPES_COUNT(thistype) \
1443 TYPE_CPLUS_SPECIFIC (thistype)->nested_types_count
1444 #define TYPE_NESTED_TYPES_FIELD_PROTECTED(thistype, n) \
1445 TYPE_NESTED_TYPES_FIELD (thistype, n).is_protected
1446 #define TYPE_NESTED_TYPES_FIELD_PRIVATE(thistype, n) \
1447 TYPE_NESTED_TYPES_FIELD (thistype, n).is_private
1449 #define TYPE_IS_OPAQUE(thistype) \
1450 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1451 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1452 && (TYPE_NFIELDS (thistype) == 0) \
1453 && (!HAVE_CPLUS_STRUCT (thistype) \
1454 || TYPE_NFN_FIELDS (thistype) == 0) \
1455 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1457 /* * A helper macro that returns the name of a type or "unnamed type"
1458 if the type has no name. */
1460 #define TYPE_SAFE_NAME(type) \
1461 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1463 /* * A helper macro that returns the name of an error type. If the
1464 type has a name, it is used; otherwise, a default is used. */
1466 #define TYPE_ERROR_NAME(type) \
1467 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1469 /* Given TYPE, return its floatformat. */
1470 const struct floatformat *floatformat_from_type (const struct type *type);
1474 /* Integral types. */
1476 /* Implicit size/sign (based on the architecture's ABI). */
1477 struct type *builtin_void;
1478 struct type *builtin_char;
1479 struct type *builtin_short;
1480 struct type *builtin_int;
1481 struct type *builtin_long;
1482 struct type *builtin_signed_char;
1483 struct type *builtin_unsigned_char;
1484 struct type *builtin_unsigned_short;
1485 struct type *builtin_unsigned_int;
1486 struct type *builtin_unsigned_long;
1487 struct type *builtin_float;
1488 struct type *builtin_double;
1489 struct type *builtin_long_double;
1490 struct type *builtin_complex;
1491 struct type *builtin_double_complex;
1492 struct type *builtin_string;
1493 struct type *builtin_bool;
1494 struct type *builtin_long_long;
1495 struct type *builtin_unsigned_long_long;
1496 struct type *builtin_decfloat;
1497 struct type *builtin_decdouble;
1498 struct type *builtin_declong;
1500 /* "True" character types.
1501 We use these for the '/c' print format, because c_char is just a
1502 one-byte integral type, which languages less laid back than C
1503 will print as ... well, a one-byte integral type. */
1504 struct type *builtin_true_char;
1505 struct type *builtin_true_unsigned_char;
1507 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1508 is for when an architecture needs to describe a register that has
1510 struct type *builtin_int0;
1511 struct type *builtin_int8;
1512 struct type *builtin_uint8;
1513 struct type *builtin_int16;
1514 struct type *builtin_uint16;
1515 struct type *builtin_int32;
1516 struct type *builtin_uint32;
1517 struct type *builtin_int64;
1518 struct type *builtin_uint64;
1519 struct type *builtin_int128;
1520 struct type *builtin_uint128;
1522 /* Wide character types. */
1523 struct type *builtin_char16;
1524 struct type *builtin_char32;
1525 struct type *builtin_wchar;
1527 /* Pointer types. */
1529 /* * `pointer to data' type. Some target platforms use an implicitly
1530 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1531 struct type *builtin_data_ptr;
1533 /* * `pointer to function (returning void)' type. Harvard
1534 architectures mean that ABI function and code pointers are not
1535 interconvertible. Similarly, since ANSI, C standards have
1536 explicitly said that pointers to functions and pointers to data
1537 are not interconvertible --- that is, you can't cast a function
1538 pointer to void * and back, and expect to get the same value.
1539 However, all function pointer types are interconvertible, so void
1540 (*) () can server as a generic function pointer. */
1542 struct type *builtin_func_ptr;
1544 /* * `function returning pointer to function (returning void)' type.
1545 The final void return type is not significant for it. */
1547 struct type *builtin_func_func;
1549 /* Special-purpose types. */
1551 /* * This type is used to represent a GDB internal function. */
1553 struct type *internal_fn;
1555 /* * This type is used to represent an xmethod. */
1556 struct type *xmethod;
1559 /* * Return the type table for the specified architecture. */
1561 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
1563 /* * Per-objfile types used by symbol readers. */
1567 /* Basic types based on the objfile architecture. */
1568 struct type *builtin_void;
1569 struct type *builtin_char;
1570 struct type *builtin_short;
1571 struct type *builtin_int;
1572 struct type *builtin_long;
1573 struct type *builtin_long_long;
1574 struct type *builtin_signed_char;
1575 struct type *builtin_unsigned_char;
1576 struct type *builtin_unsigned_short;
1577 struct type *builtin_unsigned_int;
1578 struct type *builtin_unsigned_long;
1579 struct type *builtin_unsigned_long_long;
1580 struct type *builtin_float;
1581 struct type *builtin_double;
1582 struct type *builtin_long_double;
1584 /* * This type is used to represent symbol addresses. */
1585 struct type *builtin_core_addr;
1587 /* * This type represents a type that was unrecognized in symbol
1589 struct type *builtin_error;
1591 /* * Types used for symbols with no debug information. */
1592 struct type *nodebug_text_symbol;
1593 struct type *nodebug_text_gnu_ifunc_symbol;
1594 struct type *nodebug_got_plt_symbol;
1595 struct type *nodebug_data_symbol;
1596 struct type *nodebug_unknown_symbol;
1597 struct type *nodebug_tls_symbol;
1600 /* * Return the type table for the specified objfile. */
1602 extern const struct objfile_type *objfile_type (struct objfile *objfile);
1604 /* Explicit floating-point formats. See "floatformat.h". */
1605 extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN];
1606 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
1607 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
1608 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
1609 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
1610 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
1611 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
1612 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
1613 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN];
1614 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
1615 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
1616 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
1619 /* * Allocate space for storing data associated with a particular
1620 type. We ensure that the space is allocated using the same
1621 mechanism that was used to allocate the space for the type
1622 structure itself. I.e. if the type is on an objfile's
1623 objfile_obstack, then the space for data associated with that type
1624 will also be allocated on the objfile_obstack. If the type is not
1625 associated with any particular objfile (such as builtin types),
1626 then the data space will be allocated with xmalloc, the same as for
1627 the type structure. */
1629 #define TYPE_ALLOC(t,size) \
1630 (TYPE_OBJFILE_OWNED (t) \
1631 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1634 #define TYPE_ZALLOC(t,size) \
1635 (TYPE_OBJFILE_OWNED (t) \
1636 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1640 /* Use alloc_type to allocate a type owned by an objfile. Use
1641 alloc_type_arch to allocate a type owned by an architecture. Use
1642 alloc_type_copy to allocate a type with the same owner as a
1643 pre-existing template type, no matter whether objfile or
1645 extern struct type *alloc_type (struct objfile *);
1646 extern struct type *alloc_type_arch (struct gdbarch *);
1647 extern struct type *alloc_type_copy (const struct type *);
1649 /* * Return the type's architecture. For types owned by an
1650 architecture, that architecture is returned. For types owned by an
1651 objfile, that objfile's architecture is returned. */
1653 extern struct gdbarch *get_type_arch (const struct type *);
1655 /* * This returns the target type (or NULL) of TYPE, also skipping
1658 extern struct type *get_target_type (struct type *type);
1660 /* Return the equivalent of TYPE_LENGTH, but in number of target
1661 addressable memory units of the associated gdbarch instead of bytes. */
1663 extern unsigned int type_length_units (struct type *type);
1665 /* * Helper function to construct objfile-owned types. */
1667 extern struct type *init_type (struct objfile *, enum type_code, int,
1669 extern struct type *init_integer_type (struct objfile *, int, int,
1671 extern struct type *init_character_type (struct objfile *, int, int,
1673 extern struct type *init_boolean_type (struct objfile *, int, int,
1675 extern struct type *init_float_type (struct objfile *, int, const char *,
1676 const struct floatformat **);
1677 extern struct type *init_decfloat_type (struct objfile *, int, const char *);
1678 extern struct type *init_complex_type (struct objfile *, const char *,
1680 extern struct type *init_pointer_type (struct objfile *, int, const char *,
1683 /* Helper functions to construct architecture-owned types. */
1684 extern struct type *arch_type (struct gdbarch *, enum type_code, int,
1686 extern struct type *arch_integer_type (struct gdbarch *, int, int,
1688 extern struct type *arch_character_type (struct gdbarch *, int, int,
1690 extern struct type *arch_boolean_type (struct gdbarch *, int, int,
1692 extern struct type *arch_float_type (struct gdbarch *, int, const char *,
1693 const struct floatformat **);
1694 extern struct type *arch_decfloat_type (struct gdbarch *, int, const char *);
1695 extern struct type *arch_complex_type (struct gdbarch *, const char *,
1697 extern struct type *arch_pointer_type (struct gdbarch *, int, const char *,
1700 /* Helper functions to construct a struct or record type. An
1701 initially empty type is created using arch_composite_type().
1702 Fields are then added using append_composite_type_field*(). A union
1703 type has its size set to the largest field. A struct type has each
1704 field packed against the previous. */
1706 extern struct type *arch_composite_type (struct gdbarch *gdbarch,
1707 const char *name, enum type_code code);
1708 extern void append_composite_type_field (struct type *t, const char *name,
1709 struct type *field);
1710 extern void append_composite_type_field_aligned (struct type *t,
1714 struct field *append_composite_type_field_raw (struct type *t, const char *name,
1715 struct type *field);
1717 /* Helper functions to construct a bit flags type. An initially empty
1718 type is created using arch_flag_type(). Flags are then added using
1719 append_flag_type_field() and append_flag_type_flag(). */
1720 extern struct type *arch_flags_type (struct gdbarch *gdbarch,
1721 const char *name, int bit);
1722 extern void append_flags_type_field (struct type *type,
1723 int start_bitpos, int nr_bits,
1724 struct type *field_type, const char *name);
1725 extern void append_flags_type_flag (struct type *type, int bitpos,
1728 extern void make_vector_type (struct type *array_type);
1729 extern struct type *init_vector_type (struct type *elt_type, int n);
1731 extern struct type *lookup_reference_type (struct type *, enum type_code);
1732 extern struct type *lookup_lvalue_reference_type (struct type *);
1733 extern struct type *lookup_rvalue_reference_type (struct type *);
1736 extern struct type *make_reference_type (struct type *, struct type **,
1739 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1741 extern struct type *make_restrict_type (struct type *);
1743 extern struct type *make_unqualified_type (struct type *);
1745 extern struct type *make_atomic_type (struct type *);
1747 extern void replace_type (struct type *, struct type *);
1749 extern int address_space_name_to_int (struct gdbarch *, char *);
1751 extern const char *address_space_int_to_name (struct gdbarch *, int);
1753 extern struct type *make_type_with_address_space (struct type *type,
1754 int space_identifier);
1756 extern struct type *lookup_memberptr_type (struct type *, struct type *);
1758 extern struct type *lookup_methodptr_type (struct type *);
1760 extern void smash_to_method_type (struct type *type, struct type *self_type,
1761 struct type *to_type, struct field *args,
1762 int nargs, int varargs);
1764 extern void smash_to_memberptr_type (struct type *, struct type *,
1767 extern void smash_to_methodptr_type (struct type *, struct type *);
1769 extern struct type *allocate_stub_method (struct type *);
1771 extern const char *type_name_no_tag (const struct type *);
1773 extern const char *type_name_no_tag_or_error (struct type *type);
1775 extern struct type *lookup_struct_elt_type (struct type *, const char *, int);
1777 extern struct type *make_pointer_type (struct type *, struct type **);
1779 extern struct type *lookup_pointer_type (struct type *);
1781 extern struct type *make_function_type (struct type *, struct type **);
1783 extern struct type *lookup_function_type (struct type *);
1785 extern struct type *lookup_function_type_with_arguments (struct type *,
1789 extern struct type *create_static_range_type (struct type *, struct type *,
1793 extern struct type *create_array_type_with_stride
1794 (struct type *, struct type *, struct type *, unsigned int);
1796 extern struct type *create_range_type (struct type *, struct type *,
1797 const struct dynamic_prop *,
1798 const struct dynamic_prop *);
1800 extern struct type *create_array_type (struct type *, struct type *,
1803 extern struct type *lookup_array_range_type (struct type *, LONGEST, LONGEST);
1805 extern struct type *create_string_type (struct type *, struct type *,
1807 extern struct type *lookup_string_range_type (struct type *, LONGEST, LONGEST);
1809 extern struct type *create_set_type (struct type *, struct type *);
1811 extern struct type *lookup_unsigned_typename (const struct language_defn *,
1812 struct gdbarch *, const char *);
1814 extern struct type *lookup_signed_typename (const struct language_defn *,
1815 struct gdbarch *, const char *);
1817 extern void get_unsigned_type_max (struct type *, ULONGEST *);
1819 extern void get_signed_type_minmax (struct type *, LONGEST *, LONGEST *);
1821 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1822 ADDR specifies the location of the variable the type is bound to.
1823 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1824 static properties is returned. */
1825 extern struct type *resolve_dynamic_type (struct type *type,
1826 const gdb_byte *valaddr,
1829 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1830 extern int is_dynamic_type (struct type *type);
1832 /* * Return the dynamic property of the requested KIND from TYPE's
1833 list of dynamic properties. */
1834 extern struct dynamic_prop *get_dyn_prop
1835 (enum dynamic_prop_node_kind kind, const struct type *type);
1837 /* * Given a dynamic property PROP of a given KIND, add this dynamic
1838 property to the given TYPE.
1840 This function assumes that TYPE is objfile-owned, and that OBJFILE
1841 is the TYPE's objfile. */
1842 extern void add_dyn_prop
1843 (enum dynamic_prop_node_kind kind, struct dynamic_prop prop,
1844 struct type *type, struct objfile *objfile);
1846 extern void remove_dyn_prop (enum dynamic_prop_node_kind prop_kind,
1849 extern struct type *check_typedef (struct type *);
1851 extern void check_stub_method_group (struct type *, int);
1853 extern char *gdb_mangle_name (struct type *, int, int);
1855 extern struct type *lookup_typename (const struct language_defn *,
1856 struct gdbarch *, const char *,
1857 const struct block *, int);
1859 extern struct type *lookup_template_type (char *, struct type *,
1860 const struct block *);
1862 extern int get_vptr_fieldno (struct type *, struct type **);
1864 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1866 extern int get_array_bounds (struct type *type, LONGEST *low_bound,
1867 LONGEST *high_bound);
1869 extern int discrete_position (struct type *type, LONGEST val, LONGEST *pos);
1871 extern int class_types_same_p (const struct type *, const struct type *);
1873 extern int is_ancestor (struct type *, struct type *);
1875 extern int is_public_ancestor (struct type *, struct type *);
1877 extern int is_unique_ancestor (struct type *, struct value *);
1879 /* Overload resolution */
1881 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1883 /* * Badness if parameter list length doesn't match arg list length. */
1884 extern const struct rank LENGTH_MISMATCH_BADNESS;
1886 /* * Dummy badness value for nonexistent parameter positions. */
1887 extern const struct rank TOO_FEW_PARAMS_BADNESS;
1888 /* * Badness if no conversion among types. */
1889 extern const struct rank INCOMPATIBLE_TYPE_BADNESS;
1891 /* * Badness of an exact match. */
1892 extern const struct rank EXACT_MATCH_BADNESS;
1894 /* * Badness of integral promotion. */
1895 extern const struct rank INTEGER_PROMOTION_BADNESS;
1896 /* * Badness of floating promotion. */
1897 extern const struct rank FLOAT_PROMOTION_BADNESS;
1898 /* * Badness of converting a derived class pointer
1899 to a base class pointer. */
1900 extern const struct rank BASE_PTR_CONVERSION_BADNESS;
1901 /* * Badness of integral conversion. */
1902 extern const struct rank INTEGER_CONVERSION_BADNESS;
1903 /* * Badness of floating conversion. */
1904 extern const struct rank FLOAT_CONVERSION_BADNESS;
1905 /* * Badness of integer<->floating conversions. */
1906 extern const struct rank INT_FLOAT_CONVERSION_BADNESS;
1907 /* * Badness of conversion of pointer to void pointer. */
1908 extern const struct rank VOID_PTR_CONVERSION_BADNESS;
1909 /* * Badness of conversion to boolean. */
1910 extern const struct rank BOOL_CONVERSION_BADNESS;
1911 /* * Badness of converting derived to base class. */
1912 extern const struct rank BASE_CONVERSION_BADNESS;
1913 /* * Badness of converting from non-reference to reference. Subrank
1914 is the type of reference conversion being done. */
1915 extern const struct rank REFERENCE_CONVERSION_BADNESS;
1916 /* * Conversion to rvalue reference. */
1917 #define REFERENCE_CONVERSION_RVALUE 1
1918 /* * Conversion to const lvalue reference. */
1919 #define REFERENCE_CONVERSION_CONST_LVALUE 2
1921 /* * Badness of converting integer 0 to NULL pointer. */
1922 extern const struct rank NULL_POINTER_CONVERSION;
1923 /* * Badness of cv-conversion. Subrank is a flag describing the conversions
1925 extern const struct rank CV_CONVERSION_BADNESS;
1926 #define CV_CONVERSION_CONST 1
1927 #define CV_CONVERSION_VOLATILE 2
1929 /* Non-standard conversions allowed by the debugger */
1931 /* * Converting a pointer to an int is usually OK. */
1932 extern const struct rank NS_POINTER_CONVERSION_BADNESS;
1934 /* * Badness of converting a (non-zero) integer constant
1936 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS;
1938 extern struct rank sum_ranks (struct rank a, struct rank b);
1939 extern int compare_ranks (struct rank a, struct rank b);
1941 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1943 extern struct badness_vector *rank_function (struct type **, int,
1944 struct value **, int);
1946 extern struct rank rank_one_type (struct type *, struct type *,
1949 extern void recursive_dump_type (struct type *, int);
1951 extern int field_is_static (struct field *);
1955 extern void print_scalar_formatted (const gdb_byte *, struct type *,
1956 const struct value_print_options *,
1957 int, struct ui_file *);
1959 extern int can_dereference (struct type *);
1961 extern int is_integral_type (struct type *);
1963 extern int is_floating_type (struct type *);
1965 extern int is_scalar_type (struct type *type);
1967 extern int is_scalar_type_recursive (struct type *);
1969 extern int class_or_union_p (const struct type *);
1971 extern void maintenance_print_type (const char *, int);
1973 extern htab_t create_copied_types_hash (struct objfile *objfile);
1975 extern struct type *copy_type_recursive (struct objfile *objfile,
1977 htab_t copied_types);
1979 extern struct type *copy_type (const struct type *type);
1981 extern int types_equal (struct type *, struct type *);
1983 extern int types_deeply_equal (struct type *, struct type *);
1985 extern int type_not_allocated (const struct type *type);
1987 extern int type_not_associated (const struct type *type);
1989 #endif /* GDBTYPES_H */