2001-11-14 Michael Snyder <msnyder@redhat.com>
[binutils-gdb.git] / gdb / gdbtypes.h
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.
5
6 This file is part of GDB.
7
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.
12
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.
17
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. */
22
23 #if !defined (GDBTYPES_H)
24 #define GDBTYPES_H 1
25
26 /* Forward declarations for prototypes. */
27 struct block;
28
29 /* Codes for `fundamental types'. This is a monstrosity based on the
30 bogus notion that there are certain compiler-independent
31 `fundamental types'. None of these is well-defined (how big is
32 FT_SHORT? Does it depend on the language? How does the
33 language-specific code know which type to correlate to FT_SHORT?) */
34
35 #define FT_VOID 0
36 #define FT_BOOLEAN 1
37 #define FT_CHAR 2 /* we use this for not-unsigned C/C++ chars */
38 #define FT_SIGNED_CHAR 3 /* we use this for C++ signed chars */
39 #define FT_UNSIGNED_CHAR 4 /* we use this for C/C++ unsigned chars */
40 #define FT_SHORT 5
41 #define FT_SIGNED_SHORT 6
42 #define FT_UNSIGNED_SHORT 7
43 #define FT_INTEGER 8
44 #define FT_SIGNED_INTEGER 9
45 #define FT_UNSIGNED_INTEGER 10
46 #define FT_LONG 11
47 #define FT_SIGNED_LONG 12
48 #define FT_UNSIGNED_LONG 13
49 #define FT_LONG_LONG 14
50 #define FT_SIGNED_LONG_LONG 15
51 #define FT_UNSIGNED_LONG_LONG 16
52 #define FT_FLOAT 17
53 #define FT_DBL_PREC_FLOAT 18
54 #define FT_EXT_PREC_FLOAT 19
55 #define FT_COMPLEX 20
56 #define FT_DBL_PREC_COMPLEX 21
57 #define FT_EXT_PREC_COMPLEX 22
58 #define FT_STRING 23
59 #define FT_FIXED_DECIMAL 24
60 #define FT_FLOAT_DECIMAL 25
61 #define FT_BYTE 26
62 #define FT_UNSIGNED_BYTE 27
63 #define FT_TEMPLATE_ARG 28
64
65 #define FT_NUM_MEMBERS 29 /* Highest FT_* above, plus one. */
66
67 /* Some macros for char-based bitfields. */
68
69 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
70 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
71 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
72 #define B_TYPE unsigned char
73 #define B_BYTES(x) ( 1 + ((x)>>3) )
74 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
75
76 /* Different kinds of data types are distinguished by the `code' field. */
77
78 enum type_code
79 {
80 TYPE_CODE_UNDEF, /* Not used; catches errors */
81 TYPE_CODE_PTR, /* Pointer type */
82 TYPE_CODE_ARRAY, /* Array type with lower & upper bounds. */
83 TYPE_CODE_STRUCT, /* C struct or Pascal record */
84 TYPE_CODE_UNION, /* C union or Pascal variant part */
85 TYPE_CODE_ENUM, /* Enumeration type */
86 TYPE_CODE_FUNC, /* Function type */
87 TYPE_CODE_INT, /* Integer type */
88
89 /* Floating type. This is *NOT* a complex type. Beware, there are parts
90 of GDB which bogusly assume that TYPE_CODE_FLT can mean complex. */
91 TYPE_CODE_FLT,
92
93 /* Void type. The length field specifies the length (probably always
94 one) which is used in pointer arithmetic involving pointers to
95 this type, but actually dereferencing such a pointer is invalid;
96 a void type has no length and no actual representation in memory
97 or registers. A pointer to a void type is a generic pointer. */
98 TYPE_CODE_VOID,
99
100 TYPE_CODE_SET, /* Pascal sets */
101 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
102
103 /* A string type which is like an array of character but prints
104 differently (at least for CHILL). It does not contain a length
105 field as Pascal strings (for many Pascals, anyway) do; if we want
106 to deal with such strings, we should use a new type code. */
107 TYPE_CODE_STRING,
108
109 /* String of bits; like TYPE_CODE_SET but prints differently (at least
110 for CHILL). */
111 TYPE_CODE_BITSTRING,
112
113 /* Unknown type. The length field is valid if we were able to
114 deduce that much about the type, or 0 if we don't even know that. */
115 TYPE_CODE_ERROR,
116
117 /* C++ */
118 TYPE_CODE_MEMBER, /* Member type */
119 TYPE_CODE_METHOD, /* Method type */
120 TYPE_CODE_REF, /* C++ Reference types */
121
122 TYPE_CODE_CHAR, /* *real* character type */
123
124 /* Boolean type. 0 is false, 1 is true, and other values are non-boolean
125 (e.g. FORTRAN "logical" used as unsigned int). */
126 TYPE_CODE_BOOL,
127
128 /* Fortran */
129 TYPE_CODE_COMPLEX, /* Complex float */
130
131 TYPE_CODE_TYPEDEF,
132 TYPE_CODE_TEMPLATE, /* C++ template */
133 TYPE_CODE_TEMPLATE_ARG /* C++ template arg */
134
135 };
136
137 /* For now allow source to use TYPE_CODE_CLASS for C++ classes, as an
138 alias for TYPE_CODE_STRUCT. This is for DWARF, which has a distinct
139 "class" attribute. Perhaps we should actually have a separate TYPE_CODE
140 so that we can print "class" or "struct" depending on what the debug
141 info said. It's not clear we should bother. */
142
143 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
144
145 /* Some bits for the type's flags word. */
146
147 /* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
148 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
149
150 #define TYPE_FLAG_UNSIGNED (1 << 0)
151
152 /* No sign for this type. In C++, "char", "signed char", and "unsigned
153 char" are distinct types; so we need an extra flag to indicate the
154 absence of a sign! */
155
156 #define TYPE_FLAG_NOSIGN (1 << 1)
157
158 /* This appears in a type's flags word if it is a stub type (e.g., if
159 someone referenced a type that wasn't defined in a source file
160 via (struct sir_not_appearing_in_this_film *)). */
161
162 #define TYPE_FLAG_STUB (1 << 2)
163
164 /* The target type of this type is a stub type, and this type needs to
165 be updated if it gets un-stubbed in check_typedef.
166 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
167 gets set based on the TYPE_LENGTH of the target type.
168 Also, set for TYPE_CODE_TYPEDEF. */
169
170 #define TYPE_FLAG_TARGET_STUB (1 << 3)
171
172 /* Static type. If this is set, the corresponding type had
173 * a static modifier.
174 * Note: This may be unnecessary, since static data members
175 * are indicated by other means (bitpos == -1)
176 */
177
178 #define TYPE_FLAG_STATIC (1 << 4)
179
180 /* Constant type. If this is set, the corresponding type has a
181 * const modifier.
182 */
183
184 #define TYPE_FLAG_CONST (1 << 5)
185
186 /* Volatile type. If this is set, the corresponding type has a
187 * volatile modifier.
188 */
189
190 #define TYPE_FLAG_VOLATILE (1 << 6)
191
192
193 /* This is a function type which appears to have a prototype. We need this
194 for function calls in order to tell us if it's necessary to coerce the args,
195 or to just do the standard conversions. This is used with a short field. */
196
197 #define TYPE_FLAG_PROTOTYPED (1 << 7)
198
199 /* This flag is used to indicate that processing for this type
200 is incomplete.
201
202 (Mostly intended for HP platforms, where class methods, for
203 instance, can be encountered before their classes in the debug
204 info; the incomplete type has to be marked so that the class and
205 the method can be assigned correct types.) */
206
207 #define TYPE_FLAG_INCOMPLETE (1 << 8)
208
209 /* Instruction-space delimited type. This is for Harvard architectures
210 which have separate instruction and data address spaces (and perhaps
211 others).
212
213 GDB usually defines a flat address space that is a superset of the
214 architecture's two (or more) address spaces, but this is an extension
215 of the architecture's model.
216
217 If TYPE_FLAG_INST is set, an object of the corresponding type
218 resides in instruction memory, even if its address (in the extended
219 flat address space) does not reflect this.
220
221 Similarly, if TYPE_FLAG_DATA is set, then an object of the
222 corresponding type resides in the data memory space, even if
223 this is not indicated by its (flat address space) address.
224
225 If neither flag is set, the default space for functions / methods
226 is instruction space, and for data objects is data memory. */
227
228 #define TYPE_FLAG_CODE_SPACE (1 << 9)
229 #define TYPE_FLAG_DATA_SPACE (1 << 10)
230
231
232 struct type
233 {
234
235 /* Code for kind of type */
236
237 enum type_code code;
238
239 /* Name of this type, or NULL if none.
240
241 This is used for printing only, except by poorly designed C++ code.
242 For looking up a name, look for a symbol in the VAR_NAMESPACE. */
243
244 char *name;
245
246 /* Tag name for this type, or NULL if none. This means that the
247 name of the type consists of a keyword followed by the tag name.
248 Which keyword is determined by the type code ("struct" for
249 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
250 with this feature.
251
252 This is used for printing only, except by poorly designed C++ code.
253 For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
254 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
255 the name to use to look for definitions in other files. */
256
257 char *tag_name;
258
259 /* Length of storage for a value of this type. This is what
260 sizeof(type) would return; use it for address arithmetic,
261 memory reads and writes, etc. This size includes padding. For
262 example, an i386 extended-precision floating point value really
263 only occupies ten bytes, but most ABI's declare its size to be
264 12 bytes, to preserve alignment. A `struct type' representing
265 such a floating-point type would have a `length' value of 12,
266 even though the last two bytes are unused.
267
268 There's a bit of a host/target mess here, if you're concerned
269 about machines whose bytes aren't eight bits long, or who don't
270 have byte-addressed memory. Various places pass this to memcpy
271 and such, meaning it must be in units of host bytes. Various
272 other places expect they can calculate addresses by adding it
273 and such, meaning it must be in units of target bytes. For
274 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
275 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
276
277 One fix would be to make this field in bits (requiring that it
278 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
279 the other choice would be to make it consistently in units of
280 HOST_CHAR_BIT. However, this would still fail to address
281 machines based on a ternary or decimal representation. */
282 unsigned length;
283
284 /* FIXME, these should probably be restricted to a Fortran-specific
285 field in some fashion. */
286 #define BOUND_CANNOT_BE_DETERMINED 5
287 #define BOUND_BY_REF_ON_STACK 4
288 #define BOUND_BY_VALUE_ON_STACK 3
289 #define BOUND_BY_REF_IN_REG 2
290 #define BOUND_BY_VALUE_IN_REG 1
291 #define BOUND_SIMPLE 0
292 int upper_bound_type;
293 int lower_bound_type;
294
295 /* Every type is now associated with a particular objfile, and the
296 type is allocated on the type_obstack for that objfile. One problem
297 however, is that there are times when gdb allocates new types while
298 it is not in the process of reading symbols from a particular objfile.
299 Fortunately, these happen when the type being created is a derived
300 type of an existing type, such as in lookup_pointer_type(). So
301 we can just allocate the new type using the same objfile as the
302 existing type, but to do this we need a backpointer to the objfile
303 from the existing type. Yes this is somewhat ugly, but without
304 major overhaul of the internal type system, it can't be avoided
305 for now. */
306
307 struct objfile *objfile;
308
309 /* For a pointer type, describes the type of object pointed to.
310 For an array type, describes the type of the elements.
311 For a function or method type, describes the type of the return value.
312 For a range type, describes the type of the full range.
313 For a complex type, describes the type of each coordinate.
314 Unused otherwise. */
315
316 struct type *target_type;
317
318 /* Type that is a pointer to this type.
319 NULL if no such pointer-to type is known yet.
320 The debugger may add the address of such a type
321 if it has to construct one later. */
322
323 struct type *pointer_type;
324
325 /* C++: also need a reference type. */
326
327 struct type *reference_type;
328
329 /* C-v variant chain. This points to a type that
330 differs from this one only in a const or volatile
331 attribute (or both). The various c-v variants
332 are chained together in a ring. */
333 struct type *cv_type;
334
335 /* Address-space delimited variant chain. This points to a type
336 that differs from this one only in an address-space qualifier
337 attribute. The otherwise-identical address-space delimited
338 types are chained together in a ring. */
339 struct type *as_type;
340
341 /* Flags about this type. */
342
343 int flags;
344
345 /* Number of fields described for this type */
346
347 short nfields;
348
349 /* For structure and union types, a description of each field.
350 For set and pascal array types, there is one "field",
351 whose type is the domain type of the set or array.
352 For range types, there are two "fields",
353 the minimum and maximum values (both inclusive).
354 For enum types, each possible value is described by one "field".
355 For a function type, a "field" for each parameter type.
356 For C++ classes, there is one field for each base class (if it is
357 a derived class) plus one field for each class data member. Member
358 functions are recorded elsewhere.
359
360 Using a pointer to a separate array of fields
361 allows all types to have the same size, which is useful
362 because we can allocate the space for a type before
363 we know what to put in it. */
364
365 struct field
366 {
367
368
369
370 union field_location
371 {
372 /* Position of this field, counting in bits from start of
373 containing structure.
374 For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
375 For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
376 For a function type, this is the position in the argument list
377 of this argument.
378 For a range bound or enum value, this is the value itself. */
379
380 int bitpos;
381
382 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
383 is the location (in the target) of the static field.
384 Otherwise, physname is the mangled label of the static field. */
385
386 CORE_ADDR physaddr;
387 char *physname;
388 }
389 loc;
390
391 /* Size of this field, in bits, or zero if not packed.
392 For an unpacked field, the field's type's length
393 says how many bytes the field occupies.
394 A value of -1 or -2 indicates a static field; -1 means the location
395 is specified by the label loc.physname; -2 means that loc.physaddr
396 specifies the actual address. */
397
398 int bitsize;
399
400 /* In a struct or union type, type of this field.
401 In a function type, type of this argument.
402 In an array type, the domain-type of the array. */
403
404 struct type *type;
405
406 /* Name of field, value or argument.
407 NULL for range bounds and array domains. */
408
409 char *name;
410
411 }
412 *fields;
413
414 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
415 is the base class which defined the virtual function table pointer.
416
417 For types that are pointer to member types (TYPE_CODE_MEMBER),
418 VPTR_BASETYPE is the type that this pointer is a member of.
419
420 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
421 type that contains the method.
422
423 Unused otherwise. */
424
425 struct type *vptr_basetype;
426
427 /* Field number of the virtual function table pointer in
428 VPTR_BASETYPE. If -1, we were unable to find the virtual
429 function table pointer in initial symbol reading, and
430 fill_in_vptr_fieldno should be called to find it if possible.
431
432 Unused if this type does not have virtual functions. */
433
434 int vptr_fieldno;
435
436 /* Slot to point to additional language-specific fields of this type. */
437
438 union type_specific
439 {
440
441 /* ARG_TYPES is for TYPE_CODE_METHOD.
442 Contains the type of each argument, ending with a void type
443 after the last argument for normal member functions or a NULL
444 pointer after the last argument for functions with variable
445 arguments. */
446
447 struct type **arg_types;
448
449 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to point to
450 cplus_struct_default, a default static instance of a struct
451 cplus_struct_type. */
452
453 struct cplus_struct_type *cplus_stuff;
454
455 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to the
456 floatformat object that describes the floating-point value
457 that resides within the type. */
458
459 const struct floatformat *floatformat;
460 }
461 type_specific;
462 };
463
464 #define NULL_TYPE ((struct type *) 0)
465
466 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
467 nodes. */
468
469 struct cplus_struct_type
470 {
471 /* Number of base classes this type derives from. The baseclasses are
472 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
473 the struct type). I think only the `type' field of such a field has
474 any meaning. */
475
476 short n_baseclasses;
477
478 /* Number of methods with unique names. All overloaded methods with
479 the same name count only once. */
480
481 short nfn_fields;
482
483 /* Number of methods described for this type, not including the
484 methods that it derives from. */
485
486 short nfn_fields_total;
487
488 /* The "declared_type" field contains a code saying how the
489 user really declared this type, e.g., "class s", "union s",
490 "struct s".
491 The 3 above things come out from the C++ compiler looking like classes,
492 but we keep track of the real declaration so we can give
493 the correct information on "ptype". (Note: TEMPLATE may not
494 belong in this list...) */
495
496 #define DECLARED_TYPE_CLASS 0
497 #define DECLARED_TYPE_UNION 1
498 #define DECLARED_TYPE_STRUCT 2
499 #define DECLARED_TYPE_TEMPLATE 3
500 short declared_type; /* One of the above codes */
501
502 /* For derived classes, the number of base classes is given by n_baseclasses
503 and virtual_field_bits is a bit vector containing one bit per base class.
504 If the base class is virtual, the corresponding bit will be set.
505 I.E, given:
506
507 class A{};
508 class B{};
509 class C : public B, public virtual A {};
510
511 B is a baseclass of C; A is a virtual baseclass for C.
512 This is a C++ 2.0 language feature. */
513
514 B_TYPE *virtual_field_bits;
515
516 /* For classes with private fields, the number of fields is given by
517 nfields and private_field_bits is a bit vector containing one bit
518 per field.
519 If the field is private, the corresponding bit will be set. */
520
521 B_TYPE *private_field_bits;
522
523 /* For classes with protected fields, the number of fields is given by
524 nfields and protected_field_bits is a bit vector containing one bit
525 per field.
526 If the field is private, the corresponding bit will be set. */
527
528 B_TYPE *protected_field_bits;
529
530 /* for classes with fields to be ignored, either this is optimized out
531 or this field has length 0 */
532
533 B_TYPE *ignore_field_bits;
534
535 /* For classes, structures, and unions, a description of each field,
536 which consists of an overloaded name, followed by the types of
537 arguments that the method expects, and then the name after it
538 has been renamed to make it distinct.
539
540 fn_fieldlists points to an array of nfn_fields of these. */
541
542 struct fn_fieldlist
543 {
544
545 /* The overloaded name. */
546
547 char *name;
548
549 /* The number of methods with this name. */
550
551 int length;
552
553 /* The list of methods. */
554
555 struct fn_field
556 {
557
558 /* If is_stub is clear, this is the mangled name which we can
559 look up to find the address of the method (FIXME: it would
560 be cleaner to have a pointer to the struct symbol here
561 instead). */
562
563 /* If is_stub is set, this is the portion of the mangled
564 name which specifies the arguments. For example, "ii",
565 if there are two int arguments, or "" if there are no
566 arguments. See gdb_mangle_name for the conversion from this
567 format to the one used if is_stub is clear. */
568
569 char *physname;
570
571 /* The function type for the method.
572 (This comment used to say "The return value of the method",
573 but that's wrong. The function type
574 is expected here, i.e. something with TYPE_CODE_FUNC,
575 and *not* the return-value type). */
576
577 struct type *type;
578
579 /* The argument list. Only valid if is_stub is clear. Contains
580 the type of each argument, including `this', and ending with
581 a NULL pointer after the last argument. Should not contain
582 a `this' pointer for static member functions. */
583
584 struct type **args;
585
586 /* For virtual functions.
587 First baseclass that defines this virtual function. */
588
589 struct type *fcontext;
590
591 /* Attributes. */
592
593 unsigned int is_const:1;
594 unsigned int is_volatile:1;
595 unsigned int is_private:1;
596 unsigned int is_protected:1;
597 unsigned int is_public:1;
598 unsigned int is_abstract:1;
599 unsigned int is_static:1;
600 unsigned int is_final:1;
601 unsigned int is_synchronized:1;
602 unsigned int is_native:1;
603
604 /* A stub method only has some fields valid (but they are enough
605 to reconstruct the rest of the fields). */
606 unsigned int is_stub:1;
607
608 /* C++ method that is inlined */
609 unsigned int is_inlined:1;
610
611 /* Unused. */
612 unsigned int dummy:4;
613
614 /* Index into that baseclass's virtual function table,
615 minus 2; else if static: VOFFSET_STATIC; else: 0. */
616
617 unsigned int voffset:16;
618
619 #define VOFFSET_STATIC 1
620
621 }
622 *fn_fields;
623
624 }
625 *fn_fieldlists;
626
627 /* If this "struct type" describes a template, then it
628 * has arguments. "template_args" points to an array of
629 * template arg descriptors, of length "ntemplate_args".
630 * The only real information in each of these template arg descriptors
631 * is a name. "type" will typically just point to a "struct type" with
632 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
633 */
634 short ntemplate_args;
635 struct template_arg
636 {
637 char *name;
638 struct type *type;
639 }
640 *template_args;
641
642 /* If this "struct type" describes a template, it has a list
643 * of instantiations. "instantiations" is a pointer to an array
644 * of type's, one representing each instantiation. There
645 * are "ninstantiations" elements in this array.
646 */
647 short ninstantiations;
648 struct type **instantiations;
649
650 /* The following points to information relevant to the runtime model
651 * of the compiler.
652 * Currently being used only for HP's ANSI C++ compiler.
653 * (This type may have to be changed/enhanced for other compilers.)
654 *
655 * RUNTIME_PTR is NULL if there is no runtime information (currently
656 * this means the type was not compiled by HP aCC).
657 *
658 * Fields in structure pointed to:
659 * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
660 *
661 * ->PRIMARY_BASE points to the first non-virtual base class that has
662 * a virtual table.
663 *
664 * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
665 * point to the type information for all virtual bases among this type's
666 * ancestors.
667 */
668 struct runtime_info
669 {
670 short has_vtable;
671 struct type *primary_base;
672 struct type **virtual_base_list;
673 }
674 *runtime_ptr;
675
676 /* Pointer to information about enclosing scope, if this is a
677 * local type. If it is not a local type, this is NULL
678 */
679 struct local_type_info
680 {
681 char *file;
682 int line;
683 }
684 *localtype_ptr;
685 };
686
687 /* Struct used in computing virtual base list */
688 struct vbase
689 {
690 struct type *vbasetype; /* pointer to virtual base */
691 struct vbase *next; /* next in chain */
692 };
693
694 /* Struct used for ranking a function for overload resolution */
695 struct badness_vector
696 {
697 int length;
698 int *rank;
699 };
700
701 /* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
702 this shared static structure. */
703
704 extern const struct cplus_struct_type cplus_struct_default;
705
706 extern void allocate_cplus_struct_type (struct type *);
707
708 #define INIT_CPLUS_SPECIFIC(type) \
709 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
710 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
711 #define HAVE_CPLUS_STRUCT(type) \
712 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
713
714 #define TYPE_NAME(thistype) (thistype)->name
715 #define TYPE_TAG_NAME(type) ((type)->tag_name)
716 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
717 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
718 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
719 #define TYPE_CV_TYPE(thistype) (thistype)->cv_type
720 #define TYPE_AS_TYPE(thistype) (thistype)->as_type
721 /* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
722 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
723 so you only have to call check_typedef once. Since allocate_value
724 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
725 #define TYPE_LENGTH(thistype) (thistype)->length
726 #define TYPE_OBJFILE(thistype) (thistype)->objfile
727 #define TYPE_FLAGS(thistype) (thistype)->flags
728 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
729 #define TYPE_NOSIGN(thistype) ((thistype)->flags & TYPE_FLAG_NOSIGN)
730 #define TYPE_CONST(thistype) ((thistype)->flags & TYPE_FLAG_CONST)
731 #define TYPE_VOLATILE(thistype) ((thistype)->flags & TYPE_FLAG_VOLATILE)
732 #define TYPE_INCOMPLETE(thistype) ((thistype)->flags & TYPE_FLAG_INCOMPLETE)
733 /* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
734 type, you need to do TYPE_CODE (check_type (this_type)). */
735 #define TYPE_CODE(thistype) (thistype)->code
736 #define TYPE_NFIELDS(thistype) (thistype)->nfields
737 #define TYPE_FIELDS(thistype) (thistype)->fields
738 #define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
739 #define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
740
741 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
742 #define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
743 #define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
744
745 /* Moto-specific stuff for FORTRAN arrays */
746
747 #define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
748 #define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
749
750 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
751 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
752
753 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
754 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
755
756 /* C++ */
757
758 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
759 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
760 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
761 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
762 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
763 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
764 #define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
765 #define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
766 #define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
767 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
768 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
769 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
770 #define TYPE_FLOATFORMAT(thistype) (thistype)->type_specific.floatformat
771 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
772 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
773 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
774 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
775 #define BASETYPE_VIA_PUBLIC(thistype, index) \
776 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
777
778 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
779 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
780 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
781
782 #define FIELD_TYPE(thisfld) ((thisfld).type)
783 #define FIELD_NAME(thisfld) ((thisfld).name)
784 #define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
785 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
786 #define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
787 #define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
788 #define SET_FIELD_PHYSNAME(thisfld, name) \
789 ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
790 #define SET_FIELD_PHYSADDR(thisfld, name) \
791 ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
792 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
793 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
794 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
795 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
796 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
797 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
798 #define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
799 #define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
800
801 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
802 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
803 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
804 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
805 #define TYPE_FIELD_IGNORE_BITS(thistype) \
806 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
807 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
808 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
809 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
810 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
811 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
812 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
813 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
814 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
815 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
816 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
817 #define TYPE_FIELD_PRIVATE(thistype, n) \
818 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
819 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
820 #define TYPE_FIELD_PROTECTED(thistype, n) \
821 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
822 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
823 #define TYPE_FIELD_IGNORE(thistype, n) \
824 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
825 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
826 #define TYPE_FIELD_VIRTUAL(thistype, n) \
827 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
828 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
829
830 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitsize < 0)
831 #define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) ((thistype)->fields[n].bitsize == -2)
832 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
833 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
834
835 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
836 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
837 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
838 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
839 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
840
841 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
842 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
843 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
844 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
845 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
846 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
847 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
848 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
849 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
850 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
851 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
852 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
853 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
854 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
855 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
856 #define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
857 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
858 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
859 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
860 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
861
862 #define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
863 #define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
864 #define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
865 #define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
866 #define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
867
868 #define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
869 #define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
870 #define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
871
872 #define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
873 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
874 (TYPE_NFIELDS (thistype) == 0) && \
875 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
876
877
878
879 /* Implicit sizes */
880 extern struct type *builtin_type_void;
881 extern struct type *builtin_type_char;
882 extern struct type *builtin_type_short;
883 extern struct type *builtin_type_int;
884 extern struct type *builtin_type_long;
885 extern struct type *builtin_type_signed_char;
886 extern struct type *builtin_type_unsigned_char;
887 extern struct type *builtin_type_unsigned_short;
888 extern struct type *builtin_type_unsigned_int;
889 extern struct type *builtin_type_unsigned_long;
890 extern struct type *builtin_type_float;
891 extern struct type *builtin_type_double;
892 extern struct type *builtin_type_long_double;
893 extern struct type *builtin_type_complex;
894 extern struct type *builtin_type_double_complex;
895 extern struct type *builtin_type_string;
896 extern struct type *builtin_type_bool;
897
898 /* Address/pointer types: */
899 /* (C) Language `pointer to data' type. Some target platforms use an
900 implicitly {sign,zero} -extended 32 bit C language pointer on a 64
901 bit ISA. */
902 extern struct type *builtin_type_void_data_ptr;
903
904 /* (C) Language `pointer to function returning void' type. Since
905 ANSI, C standards have explicitly said that pointers to functions
906 and pointers to data are not interconvertible --- that is, you
907 can't cast a function pointer to void * and back, and expect to get
908 the same value. However, all function pointer types are
909 interconvertible, so void (*) () can server as a generic function
910 pointer. */
911 extern struct type *builtin_type_void_func_ptr;
912
913 /* The target CPU's address type. This is the ISA address size. */
914 extern struct type *builtin_type_CORE_ADDR;
915 /* The symbol table address type. Some object file formats have a 32
916 bit address type even though the TARGET has a 64 bit pointer type
917 (cf MIPS). */
918 extern struct type *builtin_type_bfd_vma;
919
920 /* Explicit sizes - see C9X <intypes.h> for naming scheme */
921 extern struct type *builtin_type_int8;
922 extern struct type *builtin_type_uint8;
923 extern struct type *builtin_type_int16;
924 extern struct type *builtin_type_uint16;
925 extern struct type *builtin_type_int32;
926 extern struct type *builtin_type_uint32;
927 extern struct type *builtin_type_int64;
928 extern struct type *builtin_type_uint64;
929 extern struct type *builtin_type_int128;
930 extern struct type *builtin_type_uint128;
931
932 /* SIMD types. We inherit these names from GCC. */
933 extern struct type *builtin_type_v4sf;
934 extern struct type *builtin_type_v4si;
935 extern struct type *builtin_type_v8qi;
936 extern struct type *builtin_type_v4hi;
937 extern struct type *builtin_type_v2si;
938
939 /* Explicit floating-point formats. See "floatformat.h". */
940 extern struct type *builtin_type_ieee_single_big;
941 extern struct type *builtin_type_ieee_single_little;
942 extern struct type *builtin_type_ieee_double_big;
943 extern struct type *builtin_type_ieee_double_little;
944 extern struct type *builtin_type_ieee_double_littlebyte_bigword;
945 extern struct type *builtin_type_i387_ext;
946 extern struct type *builtin_type_m68881_ext;
947 extern struct type *builtin_type_i960_ext;
948 extern struct type *builtin_type_m88110_ext;
949 extern struct type *builtin_type_m88110_harris_ext;
950 extern struct type *builtin_type_arm_ext_big;
951 extern struct type *builtin_type_arm_ext_littlebyte_bigword;
952 extern struct type *builtin_type_ia64_spill_big;
953 extern struct type *builtin_type_ia64_spill_little;
954 extern struct type *builtin_type_ia64_quad_big;
955 extern struct type *builtin_type_ia64_quad_little;
956
957 /* We use this for the '/c' print format, because builtin_type_char is
958 just a one-byte integral type, which languages less laid back than
959 C will print as ... well, a one-byte integral type. */
960 extern struct type *builtin_type_true_char;
961
962 /* This type represents a type that was unrecognized in symbol
963 read-in. */
964
965 extern struct type *builtin_type_error;
966
967 extern struct type *builtin_type_long_long;
968 extern struct type *builtin_type_unsigned_long_long;
969
970 /* Modula-2 types */
971
972 extern struct type *builtin_type_m2_char;
973 extern struct type *builtin_type_m2_int;
974 extern struct type *builtin_type_m2_card;
975 extern struct type *builtin_type_m2_real;
976 extern struct type *builtin_type_m2_bool;
977
978 /* Chill types */
979
980 extern struct type *builtin_type_chill_bool;
981 extern struct type *builtin_type_chill_char;
982 extern struct type *builtin_type_chill_long;
983 extern struct type *builtin_type_chill_ulong;
984 extern struct type *builtin_type_chill_real;
985
986 /* Fortran (F77) types */
987
988 extern struct type *builtin_type_f_character;
989 extern struct type *builtin_type_f_integer;
990 extern struct type *builtin_type_f_integer_s2;
991 extern struct type *builtin_type_f_logical;
992 extern struct type *builtin_type_f_logical_s1;
993 extern struct type *builtin_type_f_logical_s2;
994 extern struct type *builtin_type_f_real;
995 extern struct type *builtin_type_f_real_s8;
996 extern struct type *builtin_type_f_real_s16;
997 extern struct type *builtin_type_f_complex_s8;
998 extern struct type *builtin_type_f_complex_s16;
999 extern struct type *builtin_type_f_complex_s32;
1000 extern struct type *builtin_type_f_void;
1001
1002 /* RTTI for C++ */
1003 /* extern struct type *builtin_type_cxx_typeinfo; */
1004
1005 /* Maximum and minimum values of built-in types */
1006
1007 #define MAX_OF_TYPE(t) \
1008 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1009 : MAX_OF_SIZE(TYPE_LENGTH(t)))
1010
1011 #define MIN_OF_TYPE(t) \
1012 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1013 : MIN_OF_SIZE(TYPE_LENGTH(t)))
1014
1015 /* Allocate space for storing data associated with a particular type.
1016 We ensure that the space is allocated using the same mechanism that
1017 was used to allocate the space for the type structure itself. I.E.
1018 if the type is on an objfile's type_obstack, then the space for data
1019 associated with that type will also be allocated on the type_obstack.
1020 If the type is not associated with any particular objfile (such as
1021 builtin types), then the data space will be allocated with xmalloc,
1022 the same as for the type structure. */
1023
1024 #define TYPE_ALLOC(t,size) \
1025 (TYPE_OBJFILE (t) != NULL \
1026 ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
1027 : xmalloc (size))
1028
1029 extern struct type *alloc_type (struct objfile *);
1030
1031 extern struct type *init_type (enum type_code, int, int, char *,
1032 struct objfile *);
1033
1034 extern struct type *lookup_reference_type (struct type *);
1035
1036 extern struct type *make_reference_type (struct type *, struct type **);
1037
1038 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1039
1040 extern int address_space_name_to_int (char *);
1041
1042 extern char *address_space_int_to_name (int);
1043
1044 extern struct type *make_type_with_address_space (struct type *type,
1045 int space_identifier);
1046
1047 extern struct type *lookup_member_type (struct type *, struct type *);
1048
1049 extern void
1050 smash_to_method_type (struct type *, struct type *, struct type *,
1051 struct type **);
1052
1053 extern void
1054 smash_to_member_type (struct type *, struct type *, struct type *);
1055
1056 extern struct type *allocate_stub_method (struct type *);
1057
1058 extern char *type_name_no_tag (const struct type *);
1059
1060 extern struct type *lookup_struct_elt_type (struct type *, char *, int);
1061
1062 extern struct type *make_pointer_type (struct type *, struct type **);
1063
1064 extern struct type *lookup_pointer_type (struct type *);
1065
1066 extern struct type *make_function_type (struct type *, struct type **);
1067
1068 extern struct type *lookup_function_type (struct type *);
1069
1070 extern struct type *create_range_type (struct type *, struct type *, int,
1071 int);
1072
1073 extern struct type *create_array_type (struct type *, struct type *,
1074 struct type *);
1075
1076 extern struct type *create_string_type (struct type *, struct type *);
1077
1078 extern struct type *create_set_type (struct type *, struct type *);
1079
1080 extern int chill_varying_type (struct type *);
1081
1082 extern struct type *lookup_unsigned_typename (char *);
1083
1084 extern struct type *lookup_signed_typename (char *);
1085
1086 extern struct type *check_typedef (struct type *);
1087
1088 #define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1089
1090 extern void check_stub_method (struct type *, int, int);
1091
1092 extern struct type *lookup_primitive_typename (char *);
1093
1094 extern char *gdb_mangle_name (struct type *, int, int);
1095
1096 extern struct type *builtin_type (char **);
1097
1098 extern struct type *lookup_typename (char *, struct block *, int);
1099
1100 extern struct type *lookup_template_type (char *, struct type *,
1101 struct block *);
1102
1103 extern struct type *lookup_fundamental_type (struct objfile *, int);
1104
1105 extern void fill_in_vptr_fieldno (struct type *);
1106
1107 extern int get_destructor_fn_field (struct type *, int *, int *);
1108
1109 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1110
1111 extern int is_ancestor (struct type *, struct type *);
1112
1113 extern int has_vtable (struct type *);
1114
1115 extern struct type *primary_base_class (struct type *);
1116
1117 extern struct type **virtual_base_list (struct type *);
1118
1119 extern int virtual_base_list_length (struct type *);
1120 extern int virtual_base_list_length_skip_primaries (struct type *);
1121
1122 extern int virtual_base_index (struct type *, struct type *);
1123 extern int virtual_base_index_skip_primaries (struct type *, struct type *);
1124
1125
1126 extern int class_index_in_primary_list (struct type *);
1127
1128 extern int count_virtual_fns (struct type *);
1129
1130 /* Constants for HP/Taligent ANSI C++ runtime model */
1131
1132 /* Where virtual function entries begin in the
1133 * virtual table, in the non-RRBC vtable format.
1134 * First 4 are the metavtable pointer, top offset,
1135 * typeinfo pointer, and dup base info pointer */
1136 #define HP_ACC_VFUNC_START 4
1137
1138 /* (Negative) Offset where virtual base offset entries begin
1139 * in the virtual table. Skips over metavtable pointer and
1140 * the self-offset entry.
1141 * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1142 * appear before the address point of the vtable (the slot
1143 * pointed to by the object's vtable pointer), i.e. at lower
1144 * addresses than the vtable pointer. */
1145 #define HP_ACC_VBASE_START 2
1146
1147 /* (Positive) Offset where the pointer to the typeinfo
1148 * object is present in the virtual table */
1149 #define HP_ACC_TYPEINFO_OFFSET 2
1150
1151 /* (Positive) Offset where the ``top offset'' entry of
1152 * the virtual table is */
1153 #define HP_ACC_TOP_OFFSET_OFFSET 1
1154
1155 /* Overload resolution */
1156
1157 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1158
1159 /* Badness if parameter list length doesn't match arg list length */
1160 #define LENGTH_MISMATCH_BADNESS 100
1161 /* Dummy badness value for nonexistent parameter positions */
1162 #define TOO_FEW_PARAMS_BADNESS 100
1163 /* Badness if no conversion among types */
1164 #define INCOMPATIBLE_TYPE_BADNESS 100
1165 /* Badness of coercing large integer to smaller size */
1166 #define INTEGER_COERCION_BADNESS 100
1167 /* Badness of coercing large floating type to smaller size */
1168 #define FLOAT_COERCION_BADNESS 100
1169
1170 /* Badness of integral promotion */
1171 #define INTEGER_PROMOTION_BADNESS 1
1172 /* Badness of floating promotion */
1173 #define FLOAT_PROMOTION_BADNESS 1
1174 /* Badness of integral conversion */
1175 #define INTEGER_CONVERSION_BADNESS 2
1176 /* Badness of floating conversion */
1177 #define FLOAT_CONVERSION_BADNESS 2
1178 /* Badness of integer<->floating conversions */
1179 #define INT_FLOAT_CONVERSION_BADNESS 2
1180 /* Badness of converting to a boolean */
1181 #define BOOLEAN_CONVERSION_BADNESS 2
1182 /* Badness of pointer conversion */
1183 #define POINTER_CONVERSION_BADNESS 2
1184 /* Badness of conversion of pointer to void pointer */
1185 #define VOID_PTR_CONVERSION_BADNESS 2
1186 /* Badness of converting derived to base class */
1187 #define BASE_CONVERSION_BADNESS 2
1188 /* Badness of converting from non-reference to reference */
1189 #define REFERENCE_CONVERSION_BADNESS 2
1190
1191 /* Non-standard conversions allowed by the debugger */
1192 /* Converting a pointer to an int is usually OK */
1193 #define NS_POINTER_CONVERSION_BADNESS 10
1194
1195
1196 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1197
1198 extern struct badness_vector *rank_function (struct type **, int,
1199 struct type **, int);
1200
1201 extern int rank_one_type (struct type *, struct type *);
1202
1203 extern void recursive_dump_type (struct type *, int);
1204
1205 /* printcmd.c */
1206
1207 extern void print_scalar_formatted (char *, struct type *, int, int,
1208 struct ui_file *);
1209
1210 extern int can_dereference (struct type *);
1211
1212 extern int is_integral_type (struct type *);
1213
1214 extern void maintenance_print_type (char *, int);
1215
1216 #endif /* GDBTYPES_H */