1 /* Internal type definitions for GDB.
3 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 2002, 2003, 2004, 2006, 2007, 2008, 2009 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)
28 /* Forward declarations for prototypes. */
31 struct value_print_options;
34 /* Some macros for char-based bitfields. */
36 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
37 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
38 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
39 #define B_TYPE unsigned char
40 #define B_BYTES(x) ( 1 + ((x)>>3) )
41 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
43 /* Different kinds of data types are distinguished by the `code' field. */
47 TYPE_CODE_UNDEF, /* Not used; catches errors */
48 TYPE_CODE_PTR, /* Pointer type */
50 /* Array type with lower & upper bounds.
52 Regardless of the language, GDB represents multidimensional
53 array types the way C does: as arrays of arrays. So an
54 instance of a GDB array type T can always be seen as a series
55 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
58 Row-major languages like C lay out multi-dimensional arrays so
59 that incrementing the rightmost index in a subscripting
60 expression results in the smallest change in the address of the
61 element referred to. Column-major languages like Fortran lay
62 them out so that incrementing the leftmost index results in the
65 This means that, in column-major languages, working our way
66 from type to target type corresponds to working through indices
67 from right to left, not left to right. */
70 TYPE_CODE_STRUCT, /* C struct or Pascal record */
71 TYPE_CODE_UNION, /* C union or Pascal variant part */
72 TYPE_CODE_ENUM, /* Enumeration type */
73 TYPE_CODE_FLAGS, /* Bit flags type */
74 TYPE_CODE_FUNC, /* Function type */
75 TYPE_CODE_INT, /* Integer type */
77 /* Floating type. This is *NOT* a complex type. Beware, there are parts
78 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
81 /* Void type. The length field specifies the length (probably always
82 one) which is used in pointer arithmetic involving pointers to
83 this type, but actually dereferencing such a pointer is invalid;
84 a void type has no length and no actual representation in memory
85 or registers. A pointer to a void type is a generic pointer. */
88 TYPE_CODE_SET, /* Pascal sets */
89 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
91 /* A string type which is like an array of character but prints
92 differently (at least for (the deleted) CHILL). It does not
93 contain a length field as Pascal strings (for many Pascals,
94 anyway) do; if we want to deal with such strings, we should use
98 /* String of bits; like TYPE_CODE_SET but prints differently (at
99 least for (the deleted) CHILL). */
102 /* Unknown type. The length field is valid if we were able to
103 deduce that much about the type, or 0 if we don't even know that. */
107 TYPE_CODE_METHOD, /* Method type */
109 /* Pointer-to-member-function type. This describes how to access a
110 particular member function of a class (possibly a virtual
111 member function). The representation may vary between different
115 /* Pointer-to-member type. This is the offset within a class to some
116 particular data member. The only currently supported representation
117 uses an unbiased offset, with -1 representing NULL; this is used
118 by the Itanium C++ ABI (used by GCC on all platforms). */
121 TYPE_CODE_REF, /* C++ Reference types */
123 TYPE_CODE_CHAR, /* *real* character type */
125 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
126 (e.g. FORTRAN "logical" used as unsigned int). */
130 TYPE_CODE_COMPLEX, /* Complex float */
133 TYPE_CODE_TEMPLATE, /* C++ template */
134 TYPE_CODE_TEMPLATE_ARG, /* C++ template arg */
136 TYPE_CODE_NAMESPACE, /* C++ namespace. */
138 TYPE_CODE_DECFLOAT, /* Decimal floating point. */
140 /* Internal function type. */
141 TYPE_CODE_INTERNAL_FUNCTION
144 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
145 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct
146 "class" attribute. Perhaps we should actually have a separate TYPE_CODE
147 so that we can print "class" or "struct" depending on what the debug
148 info said. It's not clear we should bother. */
150 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
152 /* Some constants representing each bit field in the main_type. See
153 the bit-field-specific macros, below, for documentation of each
154 constant in this enum. These enum values are only used with
155 init_type. Note that the values are chosen not to conflict with
156 type_instance_flag_value; this lets init_type error-check its
161 TYPE_FLAG_UNSIGNED = (1 << 6),
162 TYPE_FLAG_NOSIGN = (1 << 7),
163 TYPE_FLAG_STUB = (1 << 8),
164 TYPE_FLAG_TARGET_STUB = (1 << 9),
165 TYPE_FLAG_STATIC = (1 << 10),
166 TYPE_FLAG_PROTOTYPED = (1 << 11),
167 TYPE_FLAG_INCOMPLETE = (1 << 12),
168 TYPE_FLAG_VARARGS = (1 << 13),
169 TYPE_FLAG_VECTOR = (1 << 14),
170 TYPE_FLAG_FIXED_INSTANCE = (1 << 15),
171 TYPE_FLAG_STUB_SUPPORTED = (1 << 16),
172 TYPE_FLAG_NOTTEXT = (1 << 17),
174 /* Used for error-checking. */
175 TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
178 /* Some bits for the type's instance_flags word. See the macros below
179 for documentation on each bit. Note that if you add a value here,
180 you must update the enum type_flag_value as well. */
181 enum type_instance_flag_value
183 TYPE_INSTANCE_FLAG_CONST = (1 << 0),
184 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
185 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
186 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
187 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
188 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5)
191 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
192 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
194 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
196 /* No sign for this type. In C++, "char", "signed char", and "unsigned
197 char" are distinct types; so we need an extra flag to indicate the
198 absence of a sign! */
200 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
202 /* This appears in a type's flags word if it is a stub type (e.g., if
203 someone referenced a type that wasn't defined in a source file
204 via (struct sir_not_appearing_in_this_film *)). */
206 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
208 /* The target type of this type is a stub type, and this type needs to
209 be updated if it gets un-stubbed in check_typedef.
210 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
211 gets set based on the TYPE_LENGTH of the target type.
212 Also, set for TYPE_CODE_TYPEDEF. */
214 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
216 /* Static type. If this is set, the corresponding type had
218 * Note: This may be unnecessary, since static data members
219 * are indicated by other means (bitpos == -1)
222 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
224 /* This is a function type which appears to have a prototype. We need this
225 for function calls in order to tell us if it's necessary to coerce the args,
226 or to just do the standard conversions. This is used with a short field. */
228 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
230 /* This flag is used to indicate that processing for this type
233 (Mostly intended for HP platforms, where class methods, for
234 instance, can be encountered before their classes in the debug
235 info; the incomplete type has to be marked so that the class and
236 the method can be assigned correct types.) */
238 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
240 /* FIXME drow/2002-06-03: Only used for methods, but applies as well
243 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
245 /* Identify a vector type. Gcc is handling this by adding an extra
246 attribute to the array type. We slurp that in as a new flag of a
247 type. This is used only in dwarf2read.c. */
248 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
250 /* The debugging formats (especially STABS) do not contain enough information
251 to represent all Ada types---especially those whose size depends on
252 dynamic quantities. Therefore, the GNAT Ada compiler includes
253 extra information in the form of additional type definitions
254 connected by naming conventions. This flag indicates that the
255 type is an ordinary (unencoded) GDB type that has been created from
256 the necessary run-time information, and does not need further
257 interpretation. Optionally marks ordinary, fixed-size GDB type. */
259 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
261 /* This debug target supports TYPE_STUB(t). In the unsupported case we have to
262 rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE ().
263 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only guessed
264 the TYPE_STUB(t) value (see dwarfread.c). */
266 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
268 /* Not textual. By default, GDB treats all single byte integers as
269 characters (or elements of strings) unless this flag is set. */
271 #define TYPE_NOTTEXT(t) (TYPE_MAIN_TYPE (t)->flag_nottext)
273 /* Constant type. If this is set, the corresponding type has a
277 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
279 /* Volatile type. If this is set, the corresponding type has a
283 #define TYPE_VOLATILE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
285 /* Instruction-space delimited type. This is for Harvard architectures
286 which have separate instruction and data address spaces (and perhaps
289 GDB usually defines a flat address space that is a superset of the
290 architecture's two (or more) address spaces, but this is an extension
291 of the architecture's model.
293 If TYPE_FLAG_INST is set, an object of the corresponding type
294 resides in instruction memory, even if its address (in the extended
295 flat address space) does not reflect this.
297 Similarly, if TYPE_FLAG_DATA is set, then an object of the
298 corresponding type resides in the data memory space, even if
299 this is not indicated by its (flat address space) address.
301 If neither flag is set, the default space for functions / methods
302 is instruction space, and for data objects is data memory. */
304 #define TYPE_CODE_SPACE(t) \
305 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
307 #define TYPE_DATA_SPACE(t) \
308 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
310 /* Address class flags. Some environments provide for pointers whose
311 size is different from that of a normal pointer or address types
312 where the bits are interpreted differently than normal addresses. The
313 TYPE_FLAG_ADDRESS_CLASS_n flags may be used in target specific
314 ways to represent these different types of address classes. */
315 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
316 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
317 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
318 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
319 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
320 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
321 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
322 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
324 /* Determine which field of the union main_type.fields[x].loc is used. */
328 FIELD_LOC_KIND_BITPOS, /* bitpos */
329 FIELD_LOC_KIND_PHYSADDR, /* physaddr */
330 FIELD_LOC_KIND_PHYSNAME, /* physname */
331 FIELD_LOC_KIND_DWARF_BLOCK /* dwarf_block */
334 /* This structure is space-critical.
335 Its layout has been tweaked to reduce the space used. */
339 /* Code for kind of type */
341 ENUM_BITFIELD(type_code) code : 8;
343 /* Flags about this type. These fields appear at this location
344 because they packs nicely here. See the TYPE_* macros for
345 documentation about these fields. */
347 unsigned int flag_unsigned : 1;
348 unsigned int flag_nosign : 1;
349 unsigned int flag_stub : 1;
350 unsigned int flag_target_stub : 1;
351 unsigned int flag_static : 1;
352 unsigned int flag_prototyped : 1;
353 unsigned int flag_incomplete : 1;
354 unsigned int flag_varargs : 1;
355 unsigned int flag_vector : 1;
356 unsigned int flag_stub_supported : 1;
357 unsigned int flag_nottext : 1;
358 unsigned int flag_fixed_instance : 1;
360 /* Number of fields described for this type. This field appears at
361 this location because it packs nicely here. */
365 /* Field number of the virtual function table pointer in
366 VPTR_BASETYPE. If -1, we were unable to find the virtual
367 function table pointer in initial symbol reading, and
368 get_vptr_fieldno should be called to find it if possible.
369 get_vptr_fieldno will update this field if possible.
370 Otherwise the value is left at -1.
372 Unused if this type does not have virtual functions.
374 This field appears at this location because it packs nicely here. */
378 /* Name of this type, or NULL if none.
380 This is used for printing only, except by poorly designed C++ code.
381 For looking up a name, look for a symbol in the VAR_DOMAIN. */
385 /* Tag name for this type, or NULL if none. This means that the
386 name of the type consists of a keyword followed by the tag name.
387 Which keyword is determined by the type code ("struct" for
388 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
391 This is used for printing only, except by poorly designed C++ code.
392 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
393 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
394 the name to use to look for definitions in other files. */
398 /* Every type is now associated with a particular objfile, and the
399 type is allocated on the objfile_obstack for that objfile. One problem
400 however, is that there are times when gdb allocates new types while
401 it is not in the process of reading symbols from a particular objfile.
402 Fortunately, these happen when the type being created is a derived
403 type of an existing type, such as in lookup_pointer_type(). So
404 we can just allocate the new type using the same objfile as the
405 existing type, but to do this we need a backpointer to the objfile
406 from the existing type. Yes this is somewhat ugly, but without
407 major overhaul of the internal type system, it can't be avoided
410 struct objfile *objfile;
412 /* For a pointer type, describes the type of object pointed to.
413 For an array type, describes the type of the elements.
414 For a function or method type, describes the type of the return value.
415 For a range type, describes the type of the full range.
416 For a complex type, describes the type of each coordinate.
419 struct type *target_type;
421 /* For structure and union types, a description of each field.
422 For set and pascal array types, there is one "field",
423 whose type is the domain type of the set or array.
424 For range types, there are two "fields",
425 the minimum and maximum values (both inclusive).
426 For enum types, each possible value is described by one "field".
427 For a function or method type, a "field" for each parameter.
428 For C++ classes, there is one field for each base class (if it is
429 a derived class) plus one field for each class data member. Member
430 functions are recorded elsewhere.
432 Using a pointer to a separate array of fields
433 allows all types to have the same size, which is useful
434 because we can allocate the space for a type before
435 we know what to put in it. */
441 /* Position of this field, counting in bits from start of
442 containing structure.
443 For gdbarch_bits_big_endian=1 targets, it is the bit offset to the MSB.
444 For gdbarch_bits_big_endian=0 targets, it is the bit offset to the LSB.
445 For a range bound or enum value, this is the value itself. */
449 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
450 is the location (in the target) of the static field.
451 Otherwise, physname is the mangled label of the static field. */
456 /* The field location can be computed by evaluating the following DWARF
457 block. This can be used in Fortran variable-length arrays, for
460 struct dwarf2_locexpr_baton *dwarf_block;
464 /* For a function or member type, this is 1 if the argument is marked
465 artificial. Artificial arguments should not be shown to the
466 user. For TYPE_CODE_RANGE it is set if the specific bound is not
468 unsigned int artificial : 1;
470 /* Discriminant for union field_location. */
471 ENUM_BITFIELD(field_loc_kind) loc_kind : 2;
473 /* Size of this field, in bits, or zero if not packed.
474 For an unpacked field, the field's type's length
475 says how many bytes the field occupies. */
477 unsigned int bitsize : 29;
479 /* In a struct or union type, type of this field.
480 In a function or member type, type of this argument.
481 In an array type, the domain-type of the array. */
485 /* Name of field, value or argument.
486 NULL for range bounds, array domains, and member function
493 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
494 is the base class which defined the virtual function table pointer.
496 For types that are pointer to member types (TYPE_CODE_METHODPTR,
497 TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer
500 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
501 type that contains the method.
505 struct type *vptr_basetype;
507 /* Slot to point to additional language-specific fields of this type. */
511 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to
512 cplus_struct_default, a default static instance of a struct
513 cplus_struct_type. */
515 struct cplus_struct_type *cplus_stuff;
517 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
518 floatformat objects that describe the floating-point value
519 that resides within the type. The first is for big endian
520 targets and the second is for little endian targets. */
522 const struct floatformat **floatformat;
524 /* For TYPE_CODE_FUNC types, the calling convention for targets
525 supporting multiple ABIs. Right now this is only fetched from
526 the Dwarf-2 DW_AT_calling_convention attribute. */
527 unsigned calling_convention;
531 /* A ``struct type'' describes a particular instance of a type, with
532 some particular qualification. */
535 /* Type that is a pointer to this type.
536 NULL if no such pointer-to type is known yet.
537 The debugger may add the address of such a type
538 if it has to construct one later. */
540 struct type *pointer_type;
542 /* C++: also need a reference type. */
544 struct type *reference_type;
546 /* Variant chain. This points to a type that differs from this one only
547 in qualifiers and length. Currently, the possible qualifiers are
548 const, volatile, code-space, data-space, and address class. The
549 length may differ only when one of the address class flags are set.
550 The variants are linked in a circular ring and share MAIN_TYPE. */
553 /* Flags specific to this instance of the type, indicating where
554 on the ring we are. */
557 /* Length of storage for a value of this type. This is what
558 sizeof(type) would return; use it for address arithmetic,
559 memory reads and writes, etc. This size includes padding. For
560 example, an i386 extended-precision floating point value really
561 only occupies ten bytes, but most ABI's declare its size to be
562 12 bytes, to preserve alignment. A `struct type' representing
563 such a floating-point type would have a `length' value of 12,
564 even though the last two bytes are unused.
566 There's a bit of a host/target mess here, if you're concerned
567 about machines whose bytes aren't eight bits long, or who don't
568 have byte-addressed memory. Various places pass this to memcpy
569 and such, meaning it must be in units of host bytes. Various
570 other places expect they can calculate addresses by adding it
571 and such, meaning it must be in units of target bytes. For
572 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
573 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
575 One fix would be to make this field in bits (requiring that it
576 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
577 the other choice would be to make it consistently in units of
578 HOST_CHAR_BIT. However, this would still fail to address
579 machines based on a ternary or decimal representation. */
583 /* Core type, shared by a group of qualified types. */
584 struct main_type *main_type;
587 #define NULL_TYPE ((struct type *) 0)
589 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
592 struct cplus_struct_type
594 /* Number of base classes this type derives from. The baseclasses are
595 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
596 the struct type). I think only the `type' field of such a field has
601 /* Number of methods with unique names. All overloaded methods with
602 the same name count only once. */
606 /* Number of methods described for this type, not including the
607 methods that it derives from. */
609 short nfn_fields_total;
611 /* The "declared_type" field contains a code saying how the
612 user really declared this type, e.g., "class s", "union s",
614 The 3 above things come out from the C++ compiler looking like classes,
615 but we keep track of the real declaration so we can give
616 the correct information on "ptype". (Note: TEMPLATE may not
617 belong in this list...) */
619 #define DECLARED_TYPE_CLASS 0
620 #define DECLARED_TYPE_UNION 1
621 #define DECLARED_TYPE_STRUCT 2
622 #define DECLARED_TYPE_TEMPLATE 3
623 short declared_type; /* One of the above codes */
625 /* For derived classes, the number of base classes is given by n_baseclasses
626 and virtual_field_bits is a bit vector containing one bit per base class.
627 If the base class is virtual, the corresponding bit will be set.
632 class C : public B, public virtual A {};
634 B is a baseclass of C; A is a virtual baseclass for C.
635 This is a C++ 2.0 language feature. */
637 B_TYPE *virtual_field_bits;
639 /* For classes with private fields, the number of fields is given by
640 nfields and private_field_bits is a bit vector containing one bit
642 If the field is private, the corresponding bit will be set. */
644 B_TYPE *private_field_bits;
646 /* For classes with protected fields, the number of fields is given by
647 nfields and protected_field_bits is a bit vector containing one bit
649 If the field is private, the corresponding bit will be set. */
651 B_TYPE *protected_field_bits;
653 /* for classes with fields to be ignored, either this is optimized out
654 or this field has length 0 */
656 B_TYPE *ignore_field_bits;
658 /* For classes, structures, and unions, a description of each field,
659 which consists of an overloaded name, followed by the types of
660 arguments that the method expects, and then the name after it
661 has been renamed to make it distinct.
663 fn_fieldlists points to an array of nfn_fields of these. */
668 /* The overloaded name. */
672 /* The number of methods with this name. */
676 /* The list of methods. */
681 /* If is_stub is clear, this is the mangled name which we can
682 look up to find the address of the method (FIXME: it would
683 be cleaner to have a pointer to the struct symbol here
686 /* If is_stub is set, this is the portion of the mangled
687 name which specifies the arguments. For example, "ii",
688 if there are two int arguments, or "" if there are no
689 arguments. See gdb_mangle_name for the conversion from this
690 format to the one used if is_stub is clear. */
694 /* The function type for the method.
695 (This comment used to say "The return value of the method",
696 but that's wrong. The function type
697 is expected here, i.e. something with TYPE_CODE_FUNC,
698 and *not* the return-value type). */
702 /* For virtual functions.
703 First baseclass that defines this virtual function. */
705 struct type *fcontext;
709 unsigned int is_const:1;
710 unsigned int is_volatile:1;
711 unsigned int is_private:1;
712 unsigned int is_protected:1;
713 unsigned int is_public:1;
714 unsigned int is_abstract:1;
715 unsigned int is_static:1;
716 unsigned int is_final:1;
717 unsigned int is_synchronized:1;
718 unsigned int is_native:1;
719 unsigned int is_artificial:1;
721 /* A stub method only has some fields valid (but they are enough
722 to reconstruct the rest of the fields). */
723 unsigned int is_stub:1;
726 unsigned int dummy:4;
728 /* Index into that baseclass's virtual function table,
729 minus 2; else if static: VOFFSET_STATIC; else: 0. */
731 unsigned int voffset:16;
733 #define VOFFSET_STATIC 1
741 /* If this "struct type" describes a template, then it
742 * has arguments. "template_args" points to an array of
743 * template arg descriptors, of length "ntemplate_args".
744 * The only real information in each of these template arg descriptors
745 * is a name. "type" will typically just point to a "struct type" with
746 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
748 short ntemplate_args;
756 /* Pointer to information about enclosing scope, if this is a
757 * local type. If it is not a local type, this is NULL
759 struct local_type_info
767 /* Struct used in computing virtual base list */
770 struct type *vbasetype; /* pointer to virtual base */
771 struct vbase *next; /* next in chain */
774 /* Struct used for ranking a function for overload resolution */
775 struct badness_vector
781 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
782 this shared static structure. */
784 extern const struct cplus_struct_type cplus_struct_default;
786 extern void allocate_cplus_struct_type (struct type *);
788 #define INIT_CPLUS_SPECIFIC(type) \
789 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
790 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
791 #define HAVE_CPLUS_STRUCT(type) \
792 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
794 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
795 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
796 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
797 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
798 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
799 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
800 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
801 #define TYPE_CHAIN(thistype) (thistype)->chain
802 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
803 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
804 so you only have to call check_typedef once. Since allocate_value
805 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
806 #define TYPE_LENGTH(thistype) (thistype)->length
807 #define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile
808 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
809 type, you need to do TYPE_CODE (check_type (this_type)). */
810 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
811 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
812 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields
813 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
815 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
816 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
817 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
819 /* Moto-specific stuff for FORTRAN arrays */
821 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
822 (TYPE_FIELD_ARTIFICIAL(TYPE_INDEX_TYPE((arraytype)),1))
823 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
824 (TYPE_FIELD_ARTIFICIAL(TYPE_INDEX_TYPE((arraytype)),0))
826 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
827 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
829 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
830 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
834 #define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
835 #define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
836 #define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
837 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
838 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
839 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
840 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
841 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
842 #define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
843 #define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
844 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
845 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.calling_convention
846 #define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type
847 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
848 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name
849 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
850 #define BASETYPE_VIA_PUBLIC(thistype, index) \
851 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
853 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
854 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
855 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
857 #define FIELD_TYPE(thisfld) ((thisfld).type)
858 #define FIELD_NAME(thisfld) ((thisfld).name)
859 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
860 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
861 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
862 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
863 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
864 #define SET_FIELD_BITPOS(thisfld, bitpos) \
865 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
866 FIELD_BITPOS (thisfld) = (bitpos))
867 #define SET_FIELD_PHYSNAME(thisfld, name) \
868 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
869 FIELD_STATIC_PHYSNAME (thisfld) = (name))
870 #define SET_FIELD_PHYSADDR(thisfld, addr) \
871 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
872 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
873 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
874 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
875 FIELD_DWARF_BLOCK (thisfld) = (addr))
876 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
877 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
879 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n]
880 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
881 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
882 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
883 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
884 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
885 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
886 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
887 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
888 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
889 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
890 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
892 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
893 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
894 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
895 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
896 #define TYPE_FIELD_IGNORE_BITS(thistype) \
897 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
898 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
899 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
900 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
901 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
902 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
903 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
904 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
905 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
906 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
907 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
908 #define TYPE_FIELD_PRIVATE(thistype, n) \
909 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
910 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
911 #define TYPE_FIELD_PROTECTED(thistype, n) \
912 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
913 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
914 #define TYPE_FIELD_IGNORE(thistype, n) \
915 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
916 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
917 #define TYPE_FIELD_VIRTUAL(thistype, n) \
918 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
919 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
921 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
922 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
923 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
924 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
925 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
927 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
928 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
929 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
930 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
931 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
932 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
933 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
934 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
935 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
936 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
937 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
938 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
939 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
940 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
941 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
942 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
943 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
944 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
945 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
946 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
948 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
949 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
950 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
952 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
953 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
954 (TYPE_NFIELDS (thistype) == 0) && \
955 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)) && \
956 (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
960 /* Integral types. */
962 /* Implicit size/sign (based on the the architecture's ABI). */
963 struct type *builtin_void;
964 struct type *builtin_char;
965 struct type *builtin_short;
966 struct type *builtin_int;
967 struct type *builtin_long;
968 struct type *builtin_signed_char;
969 struct type *builtin_unsigned_char;
970 struct type *builtin_unsigned_short;
971 struct type *builtin_unsigned_int;
972 struct type *builtin_unsigned_long;
973 struct type *builtin_float;
974 struct type *builtin_double;
975 struct type *builtin_long_double;
976 struct type *builtin_complex;
977 struct type *builtin_double_complex;
978 struct type *builtin_string;
979 struct type *builtin_bool;
980 struct type *builtin_long_long;
981 struct type *builtin_unsigned_long_long;
982 struct type *builtin_decfloat;
983 struct type *builtin_decdouble;
984 struct type *builtin_declong;
986 /* "True" character types.
987 We use these for the '/c' print format, because c_char is just a
988 one-byte integral type, which languages less laid back than C
989 will print as ... well, a one-byte integral type. */
990 struct type *builtin_true_char;
991 struct type *builtin_true_unsigned_char;
993 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
994 is for when an architecture needs to describe a register that has
996 struct type *builtin_int0;
997 struct type *builtin_int8;
998 struct type *builtin_uint8;
999 struct type *builtin_int16;
1000 struct type *builtin_uint16;
1001 struct type *builtin_int32;
1002 struct type *builtin_uint32;
1003 struct type *builtin_int64;
1004 struct type *builtin_uint64;
1005 struct type *builtin_int128;
1006 struct type *builtin_uint128;
1009 /* Pointer types. */
1011 /* `pointer to data' type. Some target platforms use an implicitly
1012 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1013 struct type *builtin_data_ptr;
1015 /* `pointer to function (returning void)' type. Harvard
1016 architectures mean that ABI function and code pointers are not
1017 interconvertible. Similarly, since ANSI, C standards have
1018 explicitly said that pointers to functions and pointers to data
1019 are not interconvertible --- that is, you can't cast a function
1020 pointer to void * and back, and expect to get the same value.
1021 However, all function pointer types are interconvertible, so void
1022 (*) () can server as a generic function pointer. */
1023 struct type *builtin_func_ptr;
1026 /* Special-purpose types. */
1028 /* This type is used to represent a GDB internal function. */
1029 struct type *internal_fn;
1032 /* Return the type table for the specified architecture. */
1033 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
1036 /* Per-objfile types used by symbol readers. */
1040 /* Basic types based on the objfile architecture. */
1041 struct type *builtin_void;
1042 struct type *builtin_char;
1043 struct type *builtin_short;
1044 struct type *builtin_int;
1045 struct type *builtin_long;
1046 struct type *builtin_long_long;
1047 struct type *builtin_signed_char;
1048 struct type *builtin_unsigned_char;
1049 struct type *builtin_unsigned_short;
1050 struct type *builtin_unsigned_int;
1051 struct type *builtin_unsigned_long;
1052 struct type *builtin_unsigned_long_long;
1053 struct type *builtin_float;
1054 struct type *builtin_double;
1055 struct type *builtin_long_double;
1057 /* This type is used to represent symbol addresses. */
1058 struct type *builtin_core_addr;
1060 /* This type represents a type that was unrecognized in symbol read-in. */
1061 struct type *builtin_error;
1063 /* Types used for symbols with no debug information. */
1064 struct type *nodebug_text_symbol;
1065 struct type *nodebug_data_symbol;
1066 struct type *nodebug_unknown_symbol;
1067 struct type *nodebug_tls_symbol;
1070 /* Return the type table for the specified objfile. */
1071 extern const struct objfile_type *objfile_type (struct objfile *objfile);
1074 /* Explicit floating-point formats. See "floatformat.h". */
1075 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
1076 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
1077 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
1078 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
1079 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
1080 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
1081 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
1082 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN];
1083 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
1084 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
1085 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
1088 /* Maximum and minimum values of built-in types */
1090 #define MAX_OF_TYPE(t) \
1091 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1092 : MAX_OF_SIZE(TYPE_LENGTH(t)))
1094 #define MIN_OF_TYPE(t) \
1095 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1096 : MIN_OF_SIZE(TYPE_LENGTH(t)))
1098 /* Allocate space for storing data associated with a particular type.
1099 We ensure that the space is allocated using the same mechanism that
1100 was used to allocate the space for the type structure itself. I.E.
1101 if the type is on an objfile's objfile_obstack, then the space for data
1102 associated with that type will also be allocated on the objfile_obstack.
1103 If the type is not associated with any particular objfile (such as
1104 builtin types), then the data space will be allocated with xmalloc,
1105 the same as for the type structure. */
1107 #define TYPE_ALLOC(t,size) \
1108 (TYPE_OBJFILE (t) != NULL \
1109 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1112 #define TYPE_ZALLOC(t,size) \
1113 (TYPE_OBJFILE (t) != NULL \
1114 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1118 extern struct type *alloc_type (struct objfile *);
1120 extern struct type *init_type (enum type_code, int, int, char *,
1123 /* Helper functions to construct a struct or record type. An
1124 initially empty type is created using init_composite_type().
1125 Fields are then added using append_struct_type_field(). A union
1126 type has its size set to the largest field. A struct type has each
1127 field packed against the previous. */
1129 extern struct type *init_composite_type (char *name, enum type_code code);
1130 extern void append_composite_type_field (struct type *t, char *name,
1131 struct type *field);
1132 extern void append_composite_type_field_aligned (struct type *t,
1137 /* Helper functions to construct a bit flags type. An initially empty
1138 type is created using init_flag_type(). Flags are then added using
1139 append_flag_type_flag(). */
1140 extern struct type *init_flags_type (char *name, int length);
1141 extern void append_flags_type_flag (struct type *type, int bitpos, char *name);
1143 extern void make_vector_type (struct type *array_type);
1144 extern struct type *init_vector_type (struct type *elt_type, int n);
1146 extern struct type *init_float_type (int bit, char *name,
1147 const struct floatformat **floatformats);
1148 extern struct type *init_complex_type (char *name, struct type *target_type);
1150 extern struct type *lookup_reference_type (struct type *);
1152 extern struct type *make_reference_type (struct type *, struct type **);
1154 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1156 extern void replace_type (struct type *, struct type *);
1158 extern int address_space_name_to_int (char *);
1160 extern const char *address_space_int_to_name (int);
1162 extern struct type *make_type_with_address_space (struct type *type,
1163 int space_identifier);
1165 extern struct type *lookup_memberptr_type (struct type *, struct type *);
1167 extern struct type *lookup_methodptr_type (struct type *);
1169 extern void smash_to_method_type (struct type *type, struct type *domain,
1170 struct type *to_type, struct field *args,
1171 int nargs, int varargs);
1173 extern void smash_to_memberptr_type (struct type *, struct type *,
1176 extern struct type *allocate_stub_method (struct type *);
1178 extern char *type_name_no_tag (const struct type *);
1180 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
1182 extern struct type *make_pointer_type (struct type *, struct type **);
1184 extern struct type *lookup_pointer_type (struct type *);
1186 extern struct type *make_function_type (struct type *, struct type **);
1188 extern struct type *lookup_function_type (struct type *);
1190 extern struct type *create_range_type (struct type *, struct type *, int,
1193 extern struct type *create_array_type (struct type *, struct type *,
1195 extern struct type *lookup_array_range_type (struct type *, int, int);
1197 extern struct type *create_string_type (struct type *, struct type *,
1199 extern struct type *lookup_string_range_type (struct type *, int, int);
1201 extern struct type *create_set_type (struct type *, struct type *);
1203 extern struct type *lookup_unsigned_typename (const struct language_defn *,
1204 struct gdbarch *,char *);
1206 extern struct type *lookup_signed_typename (const struct language_defn *,
1207 struct gdbarch *,char *);
1209 extern struct type *check_typedef (struct type *);
1211 #define CHECK_TYPEDEF(TYPE) \
1213 (TYPE) = check_typedef (TYPE); \
1216 extern void check_stub_method_group (struct type *, int);
1218 extern char *gdb_mangle_name (struct type *, int, int);
1220 extern struct type *lookup_typename (const struct language_defn *,
1221 struct gdbarch *, char *,
1222 struct block *, int);
1224 extern struct type *lookup_template_type (char *, struct type *,
1227 extern int get_vptr_fieldno (struct type *, struct type **);
1229 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1231 extern int is_ancestor (struct type *, struct type *);
1233 /* Overload resolution */
1235 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1237 /* Badness if parameter list length doesn't match arg list length */
1238 #define LENGTH_MISMATCH_BADNESS 100
1239 /* Dummy badness value for nonexistent parameter positions */
1240 #define TOO_FEW_PARAMS_BADNESS 100
1241 /* Badness if no conversion among types */
1242 #define INCOMPATIBLE_TYPE_BADNESS 100
1244 /* Badness of integral promotion */
1245 #define INTEGER_PROMOTION_BADNESS 1
1246 /* Badness of floating promotion */
1247 #define FLOAT_PROMOTION_BADNESS 1
1248 /* Badness of integral conversion */
1249 #define INTEGER_CONVERSION_BADNESS 2
1250 /* Badness of floating conversion */
1251 #define FLOAT_CONVERSION_BADNESS 2
1252 /* Badness of integer<->floating conversions */
1253 #define INT_FLOAT_CONVERSION_BADNESS 2
1254 /* Badness of converting to a boolean */
1255 #define BOOLEAN_CONVERSION_BADNESS 2
1256 /* Badness of pointer conversion */
1257 #define POINTER_CONVERSION_BADNESS 2
1258 /* Badness of conversion of pointer to void pointer */
1259 #define VOID_PTR_CONVERSION_BADNESS 2
1260 /* Badness of converting derived to base class */
1261 #define BASE_CONVERSION_BADNESS 2
1262 /* Badness of converting from non-reference to reference */
1263 #define REFERENCE_CONVERSION_BADNESS 2
1265 /* Non-standard conversions allowed by the debugger */
1266 /* Converting a pointer to an int is usually OK */
1267 #define NS_POINTER_CONVERSION_BADNESS 10
1270 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1272 extern struct badness_vector *rank_function (struct type **, int,
1273 struct type **, int);
1275 extern int rank_one_type (struct type *, struct type *);
1277 extern void recursive_dump_type (struct type *, int);
1279 extern int field_is_static (struct field *);
1283 extern void print_scalar_formatted (const void *, struct type *,
1284 const struct value_print_options *,
1285 int, struct ui_file *);
1287 extern int can_dereference (struct type *);
1289 extern int is_integral_type (struct type *);
1291 extern void maintenance_print_type (char *, int);
1293 extern htab_t create_copied_types_hash (struct objfile *objfile);
1295 extern struct type *copy_type_recursive (struct objfile *objfile,
1297 htab_t copied_types);
1299 extern struct type *copy_type (const struct type *type);
1301 #endif /* GDBTYPES_H */