1 /* Internal type definitions for GDB.
2 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support, using pieces from other GDB modules.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 #if !defined (GDBTYPES_H)
26 /* Codes for `fundamental types'. This is a monstrosity based on the
27 bogus notion that there are certain compiler-independent
28 `fundamental types'. None of these is well-defined (how big is
29 FT_SHORT? Does it depend on the language? How does the
30 language-specific code know which type to correlate to FT_SHORT?) */
34 #define FT_CHAR 2 /* we use this for not-unsigned C/C++ chars */
35 #define FT_SIGNED_CHAR 3 /* we use this for C++ signed chars */
36 #define FT_UNSIGNED_CHAR 4 /* we use this for C/C++ unsigned chars */
38 #define FT_SIGNED_SHORT 6
39 #define FT_UNSIGNED_SHORT 7
41 #define FT_SIGNED_INTEGER 9
42 #define FT_UNSIGNED_INTEGER 10
44 #define FT_SIGNED_LONG 12
45 #define FT_UNSIGNED_LONG 13
46 #define FT_LONG_LONG 14
47 #define FT_SIGNED_LONG_LONG 15
48 #define FT_UNSIGNED_LONG_LONG 16
50 #define FT_DBL_PREC_FLOAT 18
51 #define FT_EXT_PREC_FLOAT 19
53 #define FT_DBL_PREC_COMPLEX 21
54 #define FT_EXT_PREC_COMPLEX 22
56 #define FT_FIXED_DECIMAL 24
57 #define FT_FLOAT_DECIMAL 25
59 #define FT_UNSIGNED_BYTE 27
60 #define FT_TEMPLATE_ARG 28
62 #define FT_NUM_MEMBERS 29 /* Highest FT_* above, plus one. */
64 /* Some macros for char-based bitfields. */
66 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
67 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
68 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
69 #define B_TYPE unsigned char
70 #define B_BYTES(x) ( 1 + ((x)>>3) )
71 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
73 /* Different kinds of data types are distinguished by the `code' field. */
77 TYPE_CODE_UNDEF, /* Not used; catches errors */
78 TYPE_CODE_PTR, /* Pointer type */
79 TYPE_CODE_ARRAY, /* Array type with lower & upper bounds. */
80 TYPE_CODE_STRUCT, /* C struct or Pascal record */
81 TYPE_CODE_UNION, /* C union or Pascal variant part */
82 TYPE_CODE_ENUM, /* Enumeration type */
83 TYPE_CODE_FUNC, /* Function type */
84 TYPE_CODE_INT, /* Integer type */
86 /* Floating type. This is *NOT* a complex type. Beware, there are parts
87 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
90 /* Void type. The length field specifies the length (probably always
91 one) which is used in pointer arithmetic involving pointers to
92 this type, but actually dereferencing such a pointer is invalid;
93 a void type has no length and no actual representation in memory
94 or registers. A pointer to a void type is a generic pointer. */
97 TYPE_CODE_SET, /* Pascal sets */
98 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
100 /* A string type which is like an array of character but prints
101 differently (at least for CHILL). It does not contain a length
102 field as Pascal strings (for many Pascals, anyway) do; if we want
103 to deal with such strings, we should use a new type code. */
106 /* String of bits; like TYPE_CODE_SET but prints differently (at least
110 /* Unknown type. The length field is valid if we were able to
111 deduce that much about the type, or 0 if we don't even know that. */
115 TYPE_CODE_MEMBER, /* Member type */
116 TYPE_CODE_METHOD, /* Method type */
117 TYPE_CODE_REF, /* C++ Reference types */
119 TYPE_CODE_CHAR, /* *real* character type */
121 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
122 (e.g. FORTRAN "logical" used as unsigned int). */
126 TYPE_CODE_COMPLEX, /* Complex float */
129 TYPE_CODE_TEMPLATE, /* C++ template */
130 TYPE_CODE_TEMPLATE_ARG /* C++ template arg */
134 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
135 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct
136 "class" attribute. Perhaps we should actually have a separate TYPE_CODE
137 so that we can print "class" or "struct" depending on what the debug
138 info said. It's not clear we should bother. */
140 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
142 /* Some bits for the type's flags word. */
144 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
145 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
147 #define TYPE_FLAG_UNSIGNED (1 << 0)
149 /* No sign for this type. In C++, "char", "signed char", and "unsigned
150 char" are distinct types; so we need an extra flag to indicate the
151 absence of a sign! */
153 #define TYPE_FLAG_NOSIGN (1 << 1)
155 /* This appears in a type's flags word if it is a stub type (e.g., if
156 someone referenced a type that wasn't defined in a source file
157 via (struct sir_not_appearing_in_this_film *)). */
159 #define TYPE_FLAG_STUB (1 << 2)
161 /* The target type of this type is a stub type, and this type needs to
162 be updated if it gets un-stubbed in check_typedef.
163 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
164 gets set based on the TYPE_LENGTH of the target type.
165 Also, set for TYPE_CODE_TYPEDEF. */
167 #define TYPE_FLAG_TARGET_STUB (1 << 3)
169 /* Static type. If this is set, the corresponding type had
171 * Note: This may be unnecessary, since static data members
172 * are indicated by other means (bitpos == -1)
175 #define TYPE_FLAG_STATIC (1 << 4)
177 /* Constant type. If this is set, the corresponding type has a
181 #define TYPE_FLAG_CONST (1 << 5)
183 /* Volatile type. If this is set, the corresponding type has a
187 #define TYPE_FLAG_VOLATILE (1 << 6)
190 /* This is a function type which appears to have a prototype. We need this
191 for function calls in order to tell us if it's necessary to coerce the args,
192 or to just do the standard conversions. This is used with a short field. */
194 #define TYPE_FLAG_PROTOTYPED (1 << 7)
196 /* This flag is used to indicate that processing for this type
199 (Mostly intended for HP platforms, where class methods, for
200 instance, can be encountered before their classes in the debug
201 info; the incomplete type has to be marked so that the class and
202 the method can be assigned correct types.) */
204 #define TYPE_FLAG_INCOMPLETE (1 << 8)
210 /* Code for kind of type */
214 /* Name of this type, or NULL if none.
216 This is used for printing only, except by poorly designed C++ code.
217 For looking up a name, look for a symbol in the VAR_NAMESPACE. */
221 /* Tag name for this type, or NULL if none. This means that the
222 name of the type consists of a keyword followed by the tag name.
223 Which keyword is determined by the type code ("struct" for
224 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
227 This is used for printing only, except by poorly designed C++ code.
228 For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
229 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
230 the name to use to look for definitions in other files. */
234 /* Length of storage for a value of this type. This is of length
235 of the type as defined by the debug info and not the length of
236 the value that resides within the type. For instance, an
237 i386-ext floating-point value only occupies 80 bits of what is
238 typically a 12 byte `long double'. Various places pass this to
239 memcpy and such, meaning it must be in units of HOST_CHAR_BIT.
240 Various other places expect they can calculate addresses by
241 adding it and such, meaning it must be in units of
242 TARGET_CHAR_BIT. For some DSP targets, in which HOST_CHAR_BIT
243 will (presumably) be 8 and TARGET_CHAR_BIT will be (say) 32,
244 this is a problem. One fix would be to make this field in bits
245 (requiring that it always be a multiple of HOST_CHAR_BIT and
246 TARGET_CHAR_BIT)--the other choice would be to make it
247 consistently in units of HOST_CHAR_BIT. */
251 /* FIXME, these should probably be restricted to a Fortran-specific
252 field in some fashion. */
253 #define BOUND_CANNOT_BE_DETERMINED 5
254 #define BOUND_BY_REF_ON_STACK 4
255 #define BOUND_BY_VALUE_ON_STACK 3
256 #define BOUND_BY_REF_IN_REG 2
257 #define BOUND_BY_VALUE_IN_REG 1
258 #define BOUND_SIMPLE 0
259 int upper_bound_type;
260 int lower_bound_type;
262 /* Every type is now associated with a particular objfile, and the
263 type is allocated on the type_obstack for that objfile. One problem
264 however, is that there are times when gdb allocates new types while
265 it is not in the process of reading symbols from a particular objfile.
266 Fortunately, these happen when the type being created is a derived
267 type of an existing type, such as in lookup_pointer_type(). So
268 we can just allocate the new type using the same objfile as the
269 existing type, but to do this we need a backpointer to the objfile
270 from the existing type. Yes this is somewhat ugly, but without
271 major overhaul of the internal type system, it can't be avoided
274 struct objfile *objfile;
276 /* For a pointer type, describes the type of object pointed to.
277 For an array type, describes the type of the elements.
278 For a function or method type, describes the type of the return value.
279 For a range type, describes the type of the full range.
280 For a complex type, describes the type of each coordinate.
283 struct type *target_type;
285 /* Type that is a pointer to this type.
286 NULL if no such pointer-to type is known yet.
287 The debugger may add the address of such a type
288 if it has to construct one later. */
290 struct type *pointer_type;
292 /* C++: also need a reference type. */
294 struct type *reference_type;
296 /* C-v variant chain. This points to a type that
297 differs from this one only in a const or volatile
298 attribute (or both). The various c-v variants
299 are chained together in a ring. */
300 struct type *cv_type;
302 /* Flags about this type. */
306 /* Number of fields described for this type */
310 /* For structure and union types, a description of each field.
311 For set and pascal array types, there is one "field",
312 whose type is the domain type of the set or array.
313 For range types, there are two "fields",
314 the minimum and maximum values (both inclusive).
315 For enum types, each possible value is described by one "field".
316 For a function type, a "field" for each parameter type.
317 For C++ classes, there is one field for each base class (if it is
318 a derived class) plus one field for each class data member. Member
319 functions are recorded elsewhere.
321 Using a pointer to a separate array of fields
322 allows all types to have the same size, which is useful
323 because we can allocate the space for a type before
324 we know what to put in it. */
333 /* Position of this field, counting in bits from start of
334 containing structure.
335 For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
336 For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
337 For a function type, this is the position in the argument list
339 For a range bound or enum value, this is the value itself. */
343 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
344 is the location (in the target) of the static field.
345 Otherwise, physname is the mangled label of the static field. */
352 /* Size of this field, in bits, or zero if not packed.
353 For an unpacked field, the field's type's length
354 says how many bytes the field occupies.
355 A value of -1 or -2 indicates a static field; -1 means the location
356 is specified by the label loc.physname; -2 means that loc.physaddr
357 specifies the actual address. */
361 /* In a struct or union type, type of this field.
362 In a function type, type of this argument.
363 In an array type, the domain-type of the array. */
367 /* Name of field, value or argument.
368 NULL for range bounds and array domains. */
375 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
376 is the base class which defined the virtual function table pointer.
378 For types that are pointer to member types (TYPE_CODE_MEMBER),
379 VPTR_BASETYPE is the type that this pointer is a member of.
381 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
382 type that contains the method.
386 struct type *vptr_basetype;
388 /* Field number of the virtual function table pointer in
389 VPTR_BASETYPE. If -1, we were unable to find the virtual
390 function table pointer in initial symbol reading, and
391 fill_in_vptr_fieldno should be called to find it if possible.
393 Unused if this type does not have virtual functions. */
397 /* Slot to point to additional language-specific fields of this type. */
402 /* ARG_TYPES is for TYPE_CODE_METHOD.
403 Contains the type of each argument, ending with a void type
404 after the last argument for normal member functions or a NULL
405 pointer after the last argument for functions with variable
408 struct type **arg_types;
410 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to
411 cplus_struct_default, a default static instance of a struct
412 cplus_struct_type. */
414 struct cplus_struct_type *cplus_stuff;
416 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to the
417 floatformat object that describes the floating-point value
418 that resides within the type. */
420 const struct floatformat *floatformat;
425 #define NULL_TYPE ((struct type *) 0)
427 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
430 struct cplus_struct_type
432 /* Number of base classes this type derives from. The baseclasses are
433 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
434 the struct type). I think only the `type' field of such a field has
439 /* Number of methods with unique names. All overloaded methods with
440 the same name count only once. */
444 /* Number of methods described for this type, not including the
445 methods that it derives from. */
447 short nfn_fields_total;
449 /* The "declared_type" field contains a code saying how the
450 user really declared this type, e.g., "class s", "union s",
452 The 3 above things come out from the C++ compiler looking like classes,
453 but we keep track of the real declaration so we can give
454 the correct information on "ptype". (Note: TEMPLATE may not
455 belong in this list...) */
457 #define DECLARED_TYPE_CLASS 0
458 #define DECLARED_TYPE_UNION 1
459 #define DECLARED_TYPE_STRUCT 2
460 #define DECLARED_TYPE_TEMPLATE 3
461 short declared_type; /* One of the above codes */
463 /* For derived classes, the number of base classes is given by n_baseclasses
464 and virtual_field_bits is a bit vector containing one bit per base class.
465 If the base class is virtual, the corresponding bit will be set.
470 class C : public B, public virtual A {};
472 B is a baseclass of C; A is a virtual baseclass for C.
473 This is a C++ 2.0 language feature. */
475 B_TYPE *virtual_field_bits;
477 /* For classes with private fields, the number of fields is given by
478 nfields and private_field_bits is a bit vector containing one bit
480 If the field is private, the corresponding bit will be set. */
482 B_TYPE *private_field_bits;
484 /* For classes with protected fields, the number of fields is given by
485 nfields and protected_field_bits is a bit vector containing one bit
487 If the field is private, the corresponding bit will be set. */
489 B_TYPE *protected_field_bits;
491 /* for classes with fields to be ignored, either this is optimized out
492 or this field has length 0 */
494 B_TYPE *ignore_field_bits;
496 /* For classes, structures, and unions, a description of each field,
497 which consists of an overloaded name, followed by the types of
498 arguments that the method expects, and then the name after it
499 has been renamed to make it distinct.
501 fn_fieldlists points to an array of nfn_fields of these. */
506 /* The overloaded name. */
510 /* The number of methods with this name. */
514 /* The list of methods. */
519 /* If is_stub is clear, this is the mangled name which we can
520 look up to find the address of the method (FIXME: it would
521 be cleaner to have a pointer to the struct symbol here
524 /* If is_stub is set, this is the portion of the mangled
525 name which specifies the arguments. For example, "ii",
526 if there are two int arguments, or "" if there are no
527 arguments. See gdb_mangle_name for the conversion from this
528 format to the one used if is_stub is clear. */
532 /* The function type for the method.
533 (This comment used to say "The return value of the method",
534 but that's wrong. The function type
535 is expected here, i.e. something with TYPE_CODE_FUNC,
536 and *not* the return-value type). */
540 /* The argument list. Only valid if is_stub is clear. Contains
541 the type of each argument, including `this', and ending with
542 a NULL pointer after the last argument. Should not contain
543 a `this' pointer for static member functions. */
547 /* For virtual functions.
548 First baseclass that defines this virtual function. */
550 struct type *fcontext;
554 unsigned int is_const:1;
555 unsigned int is_volatile:1;
556 unsigned int is_private:1;
557 unsigned int is_protected:1;
558 unsigned int is_public:1;
559 unsigned int is_abstract:1;
560 unsigned int is_static:1;
561 unsigned int is_final:1;
562 unsigned int is_synchronized:1;
563 unsigned int is_native:1;
565 /* A stub method only has some fields valid (but they are enough
566 to reconstruct the rest of the fields). */
567 unsigned int is_stub:1;
569 /* C++ method that is inlined */
570 unsigned int is_inlined:1;
573 unsigned int dummy:4;
575 /* Index into that baseclass's virtual function table,
576 minus 2; else if static: VOFFSET_STATIC; else: 0. */
578 unsigned int voffset:16;
580 #define VOFFSET_STATIC 1
588 /* If this "struct type" describes a template, then it
589 * has arguments. "template_args" points to an array of
590 * template arg descriptors, of length "ntemplate_args".
591 * The only real information in each of these template arg descriptors
592 * is a name. "type" will typically just point to a "struct type" with
593 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
595 short ntemplate_args;
603 /* If this "struct type" describes a template, it has a list
604 * of instantiations. "instantiations" is a pointer to an array
605 * of type's, one representing each instantiation. There
606 * are "ninstantiations" elements in this array.
608 short ninstantiations;
609 struct type **instantiations;
611 /* The following points to information relevant to the runtime model
613 * Currently being used only for HP's ANSI C++ compiler.
614 * (This type may have to be changed/enhanced for other compilers.)
616 * RUNTIME_PTR is NULL if there is no runtime information (currently
617 * this means the type was not compiled by HP aCC).
619 * Fields in structure pointed to:
620 * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
622 * ->PRIMARY_BASE points to the first non-virtual base class that has
625 * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
626 * point to the type information for all virtual bases among this type's
632 struct type *primary_base;
633 struct type **virtual_base_list;
637 /* Pointer to information about enclosing scope, if this is a
638 * local type. If it is not a local type, this is NULL
640 struct local_type_info
648 /* Struct used in computing virtual base list */
651 struct type *vbasetype; /* pointer to virtual base */
652 struct vbase *next; /* next in chain */
655 /* Struct used for ranking a function for overload resolution */
656 struct badness_vector
662 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
663 this shared static structure. */
665 extern const struct cplus_struct_type cplus_struct_default;
667 extern void allocate_cplus_struct_type (struct type *);
669 #define INIT_CPLUS_SPECIFIC(type) \
670 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
671 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
672 #define HAVE_CPLUS_STRUCT(type) \
673 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
675 #define TYPE_NAME(thistype) (thistype)->name
676 #define TYPE_TAG_NAME(type) ((type)->tag_name)
677 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
678 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
679 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
680 #define TYPE_CV_TYPE(thistype) (thistype)->cv_type
681 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
682 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
683 so you only have to call check_typedef once. Since allocate_value
684 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
685 #define TYPE_LENGTH(thistype) (thistype)->length
686 #define TYPE_OBJFILE(thistype) (thistype)->objfile
687 #define TYPE_FLAGS(thistype) (thistype)->flags
688 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
689 #define TYPE_NOSIGN(thistype) ((thistype)->flags & TYPE_FLAG_NOSIGN)
690 #define TYPE_CONST(thistype) ((thistype)->flags & TYPE_FLAG_CONST)
691 #define TYPE_VOLATILE(thistype) ((thistype)->flags & TYPE_FLAG_VOLATILE)
692 #define TYPE_INCOMPLETE(thistype) ((thistype)->flags & TYPE_FLAG_INCOMPLETE)
693 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
694 type, you need to do TYPE_CODE (check_type (this_type)). */
695 #define TYPE_CODE(thistype) (thistype)->code
696 #define TYPE_NFIELDS(thistype) (thistype)->nfields
697 #define TYPE_FIELDS(thistype) (thistype)->fields
698 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
699 #define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
701 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
702 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
703 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
705 /* Moto-specific stuff for FORTRAN arrays */
707 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
708 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
710 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
711 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
713 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
714 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
718 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
719 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
720 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
721 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
722 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
723 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
724 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
725 #define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
726 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
727 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
728 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
729 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
730 #define TYPE_FLOATFORMAT(thistype) (thistype)->type_specific.floatformat
731 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
732 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
733 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
734 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
735 #define BASETYPE_VIA_PUBLIC(thistype, index) \
736 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
738 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
739 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
740 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
742 #define FIELD_TYPE(thisfld) ((thisfld).type)
743 #define FIELD_NAME(thisfld) ((thisfld).name)
744 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
745 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
746 #define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
747 #define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
748 #define SET_FIELD_PHYSNAME(thisfld, name) \
749 ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
750 #define SET_FIELD_PHYSADDR(thisfld, name) \
751 ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
752 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
753 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
754 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
755 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
756 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
757 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
758 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
759 #define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
761 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
762 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
763 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
764 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
765 #define TYPE_FIELD_IGNORE_BITS(thistype) \
766 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
767 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
768 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
769 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
770 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
771 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
772 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
773 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
774 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
775 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
776 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
777 #define TYPE_FIELD_PRIVATE(thistype, n) \
778 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
779 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
780 #define TYPE_FIELD_PROTECTED(thistype, n) \
781 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
782 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
783 #define TYPE_FIELD_IGNORE(thistype, n) \
784 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
785 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
786 #define TYPE_FIELD_VIRTUAL(thistype, n) \
787 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
788 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
790 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitsize < 0)
791 #define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) ((thistype)->fields[n].bitsize == -2)
792 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
793 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
795 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
796 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
797 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
798 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
799 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
801 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
802 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
803 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
804 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
805 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
806 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
807 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
808 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
809 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
810 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
811 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
812 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
813 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
814 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
815 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
816 #define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
817 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
818 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
819 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
820 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
822 #define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
823 #define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
824 #define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
825 #define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
826 #define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
828 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
829 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
830 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
832 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
833 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
834 (TYPE_NFIELDS (thistype) == 0) && \
835 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
840 extern struct type *builtin_type_void;
841 extern struct type *builtin_type_char;
842 extern struct type *builtin_type_short;
843 extern struct type *builtin_type_int;
844 extern struct type *builtin_type_long;
845 extern struct type *builtin_type_signed_char;
846 extern struct type *builtin_type_unsigned_char;
847 extern struct type *builtin_type_unsigned_short;
848 extern struct type *builtin_type_unsigned_int;
849 extern struct type *builtin_type_unsigned_long;
850 extern struct type *builtin_type_float;
851 extern struct type *builtin_type_double;
852 extern struct type *builtin_type_long_double;
853 extern struct type *builtin_type_complex;
854 extern struct type *builtin_type_double_complex;
855 extern struct type *builtin_type_string;
856 extern struct type *builtin_type_bool;
858 /* Address/pointer types: */
859 /* (C) Language `pointer to data' type. Some target platforms use an
860 implicitly {sign,zero} -extended 32 bit C language pointer on a 64
862 extern struct type *builtin_type_void_data_ptr;
864 /* (C) Language `pointer to function returning void' type. Since
865 ANSI, C standards have explicitly said that pointers to functions
866 and pointers to data are not interconvertible --- that is, you
867 can't cast a function pointer to void * and back, and expect to get
868 the same value. However, all function pointer types are
869 interconvertible, so void (*) () can server as a generic function
871 extern struct type *builtin_type_void_func_ptr;
873 /* The target CPU's address type. This is the ISA address size. */
874 extern struct type *builtin_type_CORE_ADDR;
875 /* The symbol table address type. Some object file formats have a 32
876 bit address type even though the TARGET has a 64 bit pointer type
878 extern struct type *builtin_type_bfd_vma;
880 /* Explicit sizes - see C9X <intypes.h> for naming scheme */
881 extern struct type *builtin_type_int8;
882 extern struct type *builtin_type_uint8;
883 extern struct type *builtin_type_int16;
884 extern struct type *builtin_type_uint16;
885 extern struct type *builtin_type_int32;
886 extern struct type *builtin_type_uint32;
887 extern struct type *builtin_type_int64;
888 extern struct type *builtin_type_uint64;
890 /* SIMD types. We inherit these names from GCC. */
891 extern struct type *builtin_type_v4sf;
892 extern struct type *builtin_type_v4si;
893 extern struct type *builtin_type_v8qi;
894 extern struct type *builtin_type_v4hi;
895 extern struct type *builtin_type_v2si;
897 /* We use this for the '/c' print format, because builtin_type_char is
898 just a one-byte integral type, which languages less laid back than
899 C will print as ... well, a one-byte integral type. */
900 extern struct type *builtin_type_true_char;
902 /* This type represents a type that was unrecognized in symbol
905 extern struct type *builtin_type_error;
907 extern struct type *builtin_type_long_long;
908 extern struct type *builtin_type_unsigned_long_long;
912 extern struct type *builtin_type_m2_char;
913 extern struct type *builtin_type_m2_int;
914 extern struct type *builtin_type_m2_card;
915 extern struct type *builtin_type_m2_real;
916 extern struct type *builtin_type_m2_bool;
920 extern struct type *builtin_type_chill_bool;
921 extern struct type *builtin_type_chill_char;
922 extern struct type *builtin_type_chill_long;
923 extern struct type *builtin_type_chill_ulong;
924 extern struct type *builtin_type_chill_real;
926 /* Fortran (F77) types */
928 extern struct type *builtin_type_f_character;
929 extern struct type *builtin_type_f_integer;
930 extern struct type *builtin_type_f_integer_s2;
931 extern struct type *builtin_type_f_logical;
932 extern struct type *builtin_type_f_logical_s1;
933 extern struct type *builtin_type_f_logical_s2;
934 extern struct type *builtin_type_f_real;
935 extern struct type *builtin_type_f_real_s8;
936 extern struct type *builtin_type_f_real_s16;
937 extern struct type *builtin_type_f_complex_s8;
938 extern struct type *builtin_type_f_complex_s16;
939 extern struct type *builtin_type_f_complex_s32;
940 extern struct type *builtin_type_f_void;
943 /* extern struct type *builtin_type_cxx_typeinfo; */
945 /* Maximum and minimum values of built-in types */
947 #define MAX_OF_TYPE(t) \
948 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
949 : MAX_OF_SIZE(TYPE_LENGTH(t)))
951 #define MIN_OF_TYPE(t) \
952 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
953 : MIN_OF_SIZE(TYPE_LENGTH(t)))
955 /* Allocate space for storing data associated with a particular type.
956 We ensure that the space is allocated using the same mechanism that
957 was used to allocate the space for the type structure itself. I.E.
958 if the type is on an objfile's type_obstack, then the space for data
959 associated with that type will also be allocated on the type_obstack.
960 If the type is not associated with any particular objfile (such as
961 builtin types), then the data space will be allocated with xmalloc,
962 the same as for the type structure. */
964 #define TYPE_ALLOC(t,size) \
965 (TYPE_OBJFILE (t) != NULL \
966 ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
969 extern struct type *alloc_type (struct objfile *);
971 extern struct type *init_type (enum type_code, int, int, char *,
974 extern struct type *lookup_reference_type (struct type *);
976 extern struct type *make_reference_type (struct type *, struct type **);
978 extern struct type *make_cv_type (int, int, struct type *, struct type **);
980 extern struct type *lookup_member_type (struct type *, struct type *);
983 smash_to_method_type (struct type *, struct type *, struct type *,
987 smash_to_member_type (struct type *, struct type *, struct type *);
989 extern struct type *allocate_stub_method (struct type *);
991 extern char *type_name_no_tag (const struct type *);
993 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
995 extern struct type *make_pointer_type (struct type *, struct type **);
997 extern struct type *lookup_pointer_type (struct type *);
999 extern struct type *make_function_type (struct type *, struct type **);
1001 extern struct type *lookup_function_type (struct type *);
1003 extern struct type *create_range_type (struct type *, struct type *, int,
1006 extern struct type *create_array_type (struct type *, struct type *,
1009 extern struct type *create_string_type (struct type *, struct type *);
1011 extern struct type *create_set_type (struct type *, struct type *);
1013 extern int chill_varying_type (struct type *);
1015 extern struct type *lookup_unsigned_typename (char *);
1017 extern struct type *lookup_signed_typename (char *);
1019 extern struct type *check_typedef (struct type *);
1021 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1023 extern void check_stub_method (struct type *, int, int);
1025 extern struct type *lookup_primitive_typename (char *);
1027 extern char *gdb_mangle_name (struct type *, int, int);
1029 extern struct type *builtin_type (char **);
1031 extern struct type *lookup_typename (char *, struct block *, int);
1033 extern struct type *lookup_template_type (char *, struct type *,
1036 extern struct type *lookup_fundamental_type (struct objfile *, int);
1038 extern void fill_in_vptr_fieldno (struct type *);
1040 extern int get_destructor_fn_field (struct type *, int *, int *);
1042 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1044 extern int is_ancestor (struct type *, struct type *);
1046 extern int has_vtable (struct type *);
1048 extern struct type *primary_base_class (struct type *);
1050 extern struct type **virtual_base_list (struct type *);
1052 extern int virtual_base_list_length (struct type *);
1053 extern int virtual_base_list_length_skip_primaries (struct type *);
1055 extern int virtual_base_index (struct type *, struct type *);
1056 extern int virtual_base_index_skip_primaries (struct type *, struct type *);
1059 extern int class_index_in_primary_list (struct type *);
1061 extern int count_virtual_fns (struct type *);
1063 /* Constants for HP/Taligent ANSI C++ runtime model */
1065 /* Where virtual function entries begin in the
1066 * virtual table, in the non-RRBC vtable format.
1067 * First 4 are the metavtable pointer, top offset,
1068 * typeinfo pointer, and dup base info pointer */
1069 #define HP_ACC_VFUNC_START 4
1071 /* (Negative) Offset where virtual base offset entries begin
1072 * in the virtual table. Skips over metavtable pointer and
1073 * the self-offset entry.
1074 * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1075 * appear before the address point of the vtable (the slot
1076 * pointed to by the object's vtable pointer), i.e. at lower
1077 * addresses than the vtable pointer. */
1078 #define HP_ACC_VBASE_START 2
1080 /* (Positive) Offset where the pointer to the typeinfo
1081 * object is present in the virtual table */
1082 #define HP_ACC_TYPEINFO_OFFSET 2
1084 /* (Positive) Offset where the ``top offset'' entry of
1085 * the virtual table is */
1086 #define HP_ACC_TOP_OFFSET_OFFSET 1
1088 /* Overload resolution */
1090 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1092 /* Badness if parameter list length doesn't match arg list length */
1093 #define LENGTH_MISMATCH_BADNESS 100
1094 /* Dummy badness value for nonexistent parameter positions */
1095 #define TOO_FEW_PARAMS_BADNESS 100
1096 /* Badness if no conversion among types */
1097 #define INCOMPATIBLE_TYPE_BADNESS 100
1098 /* Badness of coercing large integer to smaller size */
1099 #define INTEGER_COERCION_BADNESS 100
1100 /* Badness of coercing large floating type to smaller size */
1101 #define FLOAT_COERCION_BADNESS 100
1103 /* Badness of integral promotion */
1104 #define INTEGER_PROMOTION_BADNESS 1
1105 /* Badness of floating promotion */
1106 #define FLOAT_PROMOTION_BADNESS 1
1107 /* Badness of integral conversion */
1108 #define INTEGER_CONVERSION_BADNESS 2
1109 /* Badness of floating conversion */
1110 #define FLOAT_CONVERSION_BADNESS 2
1111 /* Badness of integer<->floating conversions */
1112 #define INT_FLOAT_CONVERSION_BADNESS 2
1113 /* Badness of converting to a boolean */
1114 #define BOOLEAN_CONVERSION_BADNESS 2
1115 /* Badness of pointer conversion */
1116 #define POINTER_CONVERSION_BADNESS 2
1117 /* Badness of conversion of pointer to void pointer */
1118 #define VOID_PTR_CONVERSION_BADNESS 2
1119 /* Badness of converting derived to base class */
1120 #define BASE_CONVERSION_BADNESS 2
1121 /* Badness of converting from non-reference to reference */
1122 #define REFERENCE_CONVERSION_BADNESS 2
1124 /* Non-standard conversions allowed by the debugger */
1125 /* Converting a pointer to an int is usually OK */
1126 #define NS_POINTER_CONVERSION_BADNESS 10
1129 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1131 extern struct badness_vector *rank_function (struct type **, int,
1132 struct type **, int);
1134 extern int rank_one_type (struct type *, struct type *);
1136 extern void recursive_dump_type (struct type *, int);
1140 extern void print_scalar_formatted (char *, struct type *, int, int,
1143 extern int can_dereference (struct type *);
1145 extern int is_integral_type (struct type *);
1147 extern void maintenance_print_type (char *, int);
1149 #endif /* GDBTYPES_H */