vla: support for DW_AT_count
[binutils-gdb.git] / gdb / gdbtypes.h
1
2 /* Internal type definitions for GDB.
3
4 Copyright (C) 1992-2014 Free Software Foundation, Inc.
5
6 Contributed by Cygnus Support, using pieces from other GDB modules.
7
8 This file is part of GDB.
9
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.
14
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.
19
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/>. */
22
23 #if !defined (GDBTYPES_H)
24 #define GDBTYPES_H 1
25
26 /* * \page gdbtypes GDB Types
27
28 GDB represents all the different kinds of types in programming
29 languages using a common representation defined in gdbtypes.h.
30
31 The main data structure is main_type; it consists of a code (such
32 as TYPE_CODE_ENUM for enumeration types), a number of
33 generally-useful fields such as the printable name, and finally a
34 field type_specific that is a union of info specific to particular
35 languages or other special cases (such as calling convention).
36
37 The available type codes are defined in enum type_code. The enum
38 includes codes both for types that are common across a variety
39 of languages, and for types that are language-specific.
40
41 Most accesses to type fields go through macros such as TYPE_CODE
42 and TYPE_FN_FIELD_CONST. These are written such that they can be
43 used as both rvalues and lvalues.
44 */
45
46 #include "hashtab.h"
47
48 /* Forward declarations for prototypes. */
49 struct field;
50 struct block;
51 struct value_print_options;
52 struct language_defn;
53
54 /* These declarations are DWARF-specific as some of the gdbtypes.h data types
55 are already DWARF-specific. */
56
57 /* * Offset relative to the start of its containing CU (compilation
58 unit). */
59 typedef struct
60 {
61 unsigned int cu_off;
62 } cu_offset;
63
64 /* * Offset relative to the start of its .debug_info or .debug_types
65 section. */
66
67 typedef struct
68 {
69 unsigned int sect_off;
70 } sect_offset;
71
72 /* Some macros for char-based bitfields. */
73
74 #define B_SET(a,x) ((a)[(x)>>3] |= (1 << ((x)&7)))
75 #define B_CLR(a,x) ((a)[(x)>>3] &= ~(1 << ((x)&7)))
76 #define B_TST(a,x) ((a)[(x)>>3] & (1 << ((x)&7)))
77 #define B_TYPE unsigned char
78 #define B_BYTES(x) ( 1 + ((x)>>3) )
79 #define B_CLRALL(a,x) memset ((a), 0, B_BYTES(x))
80
81 /* * Different kinds of data types are distinguished by the `code'
82 field. */
83
84 enum type_code
85 {
86 TYPE_CODE_BITSTRING = -1, /**< Deprecated */
87 TYPE_CODE_UNDEF = 0, /**< Not used; catches errors */
88 TYPE_CODE_PTR, /**< Pointer type */
89
90 /* * Array type with lower & upper bounds.
91
92 Regardless of the language, GDB represents multidimensional
93 array types the way C does: as arrays of arrays. So an
94 instance of a GDB array type T can always be seen as a series
95 of instances of TYPE_TARGET_TYPE (T) laid out sequentially in
96 memory.
97
98 Row-major languages like C lay out multi-dimensional arrays so
99 that incrementing the rightmost index in a subscripting
100 expression results in the smallest change in the address of the
101 element referred to. Column-major languages like Fortran lay
102 them out so that incrementing the leftmost index results in the
103 smallest change.
104
105 This means that, in column-major languages, working our way
106 from type to target type corresponds to working through indices
107 from right to left, not left to right. */
108 TYPE_CODE_ARRAY,
109
110 TYPE_CODE_STRUCT, /**< C struct or Pascal record */
111 TYPE_CODE_UNION, /**< C union or Pascal variant part */
112 TYPE_CODE_ENUM, /**< Enumeration type */
113 TYPE_CODE_FLAGS, /**< Bit flags type */
114 TYPE_CODE_FUNC, /**< Function type */
115 TYPE_CODE_INT, /**< Integer type */
116
117 /* * Floating type. This is *NOT* a complex type. Beware, there
118 are parts of GDB which bogusly assume that TYPE_CODE_FLT can
119 mean complex. */
120 TYPE_CODE_FLT,
121
122 /* * Void type. The length field specifies the length (probably
123 always one) which is used in pointer arithmetic involving
124 pointers to this type, but actually dereferencing such a
125 pointer is invalid; a void type has no length and no actual
126 representation in memory or registers. A pointer to a void
127 type is a generic pointer. */
128 TYPE_CODE_VOID,
129
130 TYPE_CODE_SET, /**< Pascal sets */
131 TYPE_CODE_RANGE, /**< Range (integers within spec'd bounds). */
132
133 /* * A string type which is like an array of character but prints
134 differently (at least for (the deleted) CHILL). It does not
135 contain a length field as Pascal strings (for many Pascals,
136 anyway) do; if we want to deal with such strings, we should use
137 a new type code. */
138 TYPE_CODE_STRING,
139
140 /* * Unknown type. The length field is valid if we were able to
141 deduce that much about the type, or 0 if we don't even know
142 that. */
143 TYPE_CODE_ERROR,
144
145 /* C++ */
146 TYPE_CODE_METHOD, /**< Method type */
147
148 /* * Pointer-to-member-function type. This describes how to access a
149 particular member function of a class (possibly a virtual
150 member function). The representation may vary between different
151 C++ ABIs. */
152 TYPE_CODE_METHODPTR,
153
154 /* * Pointer-to-member type. This is the offset within a class to
155 some particular data member. The only currently supported
156 representation uses an unbiased offset, with -1 representing
157 NULL; this is used by the Itanium C++ ABI (used by GCC on all
158 platforms). */
159 TYPE_CODE_MEMBERPTR,
160
161 TYPE_CODE_REF, /**< C++ Reference types */
162
163 TYPE_CODE_CHAR, /**< *real* character type */
164
165 /* * Boolean type. 0 is false, 1 is true, and other values are
166 non-boolean (e.g. FORTRAN "logical" used as unsigned int). */
167 TYPE_CODE_BOOL,
168
169 /* Fortran */
170 TYPE_CODE_COMPLEX, /**< Complex float */
171
172 TYPE_CODE_TYPEDEF,
173
174 TYPE_CODE_NAMESPACE, /**< C++ namespace. */
175
176 TYPE_CODE_DECFLOAT, /**< Decimal floating point. */
177
178 TYPE_CODE_MODULE, /**< Fortran module. */
179
180 /* * Internal function type. */
181 TYPE_CODE_INTERNAL_FUNCTION
182 };
183
184 /* * For now allow source to use TYPE_CODE_CLASS for C++ classes, as
185 an alias for TYPE_CODE_STRUCT. This is for DWARF, which has a
186 distinct "class" attribute. Perhaps we should actually have a
187 separate TYPE_CODE so that we can print "class" or "struct"
188 depending on what the debug info said. It's not clear we should
189 bother. */
190
191 #define TYPE_CODE_CLASS TYPE_CODE_STRUCT
192
193 /* * Some constants representing each bit field in the main_type. See
194 the bit-field-specific macros, below, for documentation of each
195 constant in this enum. These enum values are only used with
196 init_type. Note that the values are chosen not to conflict with
197 type_instance_flag_value; this lets init_type error-check its
198 input. */
199
200 enum type_flag_value
201 {
202 TYPE_FLAG_UNSIGNED = (1 << 8),
203 TYPE_FLAG_NOSIGN = (1 << 9),
204 TYPE_FLAG_STUB = (1 << 10),
205 TYPE_FLAG_TARGET_STUB = (1 << 11),
206 TYPE_FLAG_STATIC = (1 << 12),
207 TYPE_FLAG_PROTOTYPED = (1 << 13),
208 TYPE_FLAG_INCOMPLETE = (1 << 14),
209 TYPE_FLAG_VARARGS = (1 << 15),
210 TYPE_FLAG_VECTOR = (1 << 16),
211 TYPE_FLAG_FIXED_INSTANCE = (1 << 17),
212 TYPE_FLAG_STUB_SUPPORTED = (1 << 18),
213 TYPE_FLAG_GNU_IFUNC = (1 << 19),
214
215 /* * Used for error-checking. */
216 TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
217 };
218
219 /* * Some bits for the type's instance_flags word. See the macros
220 below for documentation on each bit. Note that if you add a value
221 here, you must update the enum type_flag_value as well. */
222
223 enum type_instance_flag_value
224 {
225 TYPE_INSTANCE_FLAG_CONST = (1 << 0),
226 TYPE_INSTANCE_FLAG_VOLATILE = (1 << 1),
227 TYPE_INSTANCE_FLAG_CODE_SPACE = (1 << 2),
228 TYPE_INSTANCE_FLAG_DATA_SPACE = (1 << 3),
229 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 = (1 << 4),
230 TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2 = (1 << 5),
231 TYPE_INSTANCE_FLAG_NOTTEXT = (1 << 6),
232 TYPE_INSTANCE_FLAG_RESTRICT = (1 << 7)
233 };
234
235 /* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
236 the type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
237
238 #define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
239
240 /* * No sign for this type. In C++, "char", "signed char", and
241 "unsigned char" are distinct types; so we need an extra flag to
242 indicate the absence of a sign! */
243
244 #define TYPE_NOSIGN(t) (TYPE_MAIN_TYPE (t)->flag_nosign)
245
246 /* * This appears in a type's flags word if it is a stub type (e.g.,
247 if someone referenced a type that wasn't defined in a source file
248 via (struct sir_not_appearing_in_this_film *)). */
249
250 #define TYPE_STUB(t) (TYPE_MAIN_TYPE (t)->flag_stub)
251
252 /* * The target type of this type is a stub type, and this type needs
253 to be updated if it gets un-stubbed in check_typedef. Used for
254 arrays and ranges, in which TYPE_LENGTH of the array/range gets set
255 based on the TYPE_LENGTH of the target type. Also, set for
256 TYPE_CODE_TYPEDEF. */
257
258 #define TYPE_TARGET_STUB(t) (TYPE_MAIN_TYPE (t)->flag_target_stub)
259
260 /* * Static type. If this is set, the corresponding type had
261 a static modifier.
262 Note: This may be unnecessary, since static data members
263 are indicated by other means (bitpos == -1). */
264
265 #define TYPE_STATIC(t) (TYPE_MAIN_TYPE (t)->flag_static)
266
267 /* * This is a function type which appears to have a prototype. We
268 need this for function calls in order to tell us if it's necessary
269 to coerce the args, or to just do the standard conversions. This
270 is used with a short field. */
271
272 #define TYPE_PROTOTYPED(t) (TYPE_MAIN_TYPE (t)->flag_prototyped)
273
274 /* * This flag is used to indicate that processing for this type
275 is incomplete.
276
277 (Mostly intended for HP platforms, where class methods, for
278 instance, can be encountered before their classes in the debug
279 info; the incomplete type has to be marked so that the class and
280 the method can be assigned correct types.) */
281
282 #define TYPE_INCOMPLETE(t) (TYPE_MAIN_TYPE (t)->flag_incomplete)
283
284 /* * FIXME drow/2002-06-03: Only used for methods, but applies as well
285 to functions. */
286
287 #define TYPE_VARARGS(t) (TYPE_MAIN_TYPE (t)->flag_varargs)
288
289 /* * Identify a vector type. Gcc is handling this by adding an extra
290 attribute to the array type. We slurp that in as a new flag of a
291 type. This is used only in dwarf2read.c. */
292 #define TYPE_VECTOR(t) (TYPE_MAIN_TYPE (t)->flag_vector)
293
294 /* * The debugging formats (especially STABS) do not contain enough
295 information to represent all Ada types---especially those whose
296 size depends on dynamic quantities. Therefore, the GNAT Ada
297 compiler includes extra information in the form of additional type
298 definitions connected by naming conventions. This flag indicates
299 that the type is an ordinary (unencoded) GDB type that has been
300 created from the necessary run-time information, and does not need
301 further interpretation. Optionally marks ordinary, fixed-size GDB
302 type. */
303
304 #define TYPE_FIXED_INSTANCE(t) (TYPE_MAIN_TYPE (t)->flag_fixed_instance)
305
306 /* * This debug target supports TYPE_STUB(t). In the unsupported case
307 we have to rely on NFIELDS to be zero etc., see TYPE_IS_OPAQUE().
308 TYPE_STUB(t) with !TYPE_STUB_SUPPORTED(t) may exist if we only
309 guessed the TYPE_STUB(t) value (see dwarfread.c). */
310
311 #define TYPE_STUB_SUPPORTED(t) (TYPE_MAIN_TYPE (t)->flag_stub_supported)
312
313 /* * Not textual. By default, GDB treats all single byte integers as
314 characters (or elements of strings) unless this flag is set. */
315
316 #define TYPE_NOTTEXT(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_NOTTEXT)
317
318 /* * Used only for TYPE_CODE_FUNC where it specifies the real function
319 address is returned by this function call. TYPE_TARGET_TYPE
320 determines the final returned function type to be presented to
321 user. */
322
323 #define TYPE_GNU_IFUNC(t) (TYPE_MAIN_TYPE (t)->flag_gnu_ifunc)
324
325 /* * Type owner. If TYPE_OBJFILE_OWNED is true, the type is owned by
326 the objfile retrieved as TYPE_OBJFILE. Otherweise, the type is
327 owned by an architecture; TYPE_OBJFILE is NULL in this case. */
328
329 #define TYPE_OBJFILE_OWNED(t) (TYPE_MAIN_TYPE (t)->flag_objfile_owned)
330 #define TYPE_OWNER(t) TYPE_MAIN_TYPE(t)->owner
331 #define TYPE_OBJFILE(t) (TYPE_OBJFILE_OWNED(t)? TYPE_OWNER(t).objfile : NULL)
332
333 /* * True if this type was declared using the "class" keyword. This is
334 only valid for C++ structure types, and only used for displaying
335 the type. If false, the structure was declared as a "struct". */
336
337 #define TYPE_DECLARED_CLASS(t) (TYPE_MAIN_TYPE (t)->flag_declared_class)
338
339 /* * True if this type is a "flag" enum. A flag enum is one where all
340 the values are pairwise disjoint when "and"ed together. This
341 affects how enum values are printed. */
342
343 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
344
345 /* * Constant type. If this is set, the corresponding type has a
346 const modifier. */
347
348 #define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CONST)
349
350 /* * Volatile type. If this is set, the corresponding type has a
351 volatile modifier. */
352
353 #define TYPE_VOLATILE(t) \
354 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_VOLATILE)
355
356 /* * Restrict type. If this is set, the corresponding type has a
357 restrict modifier. */
358
359 #define TYPE_RESTRICT(t) \
360 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_RESTRICT)
361
362 /* * Instruction-space delimited type. This is for Harvard architectures
363 which have separate instruction and data address spaces (and perhaps
364 others).
365
366 GDB usually defines a flat address space that is a superset of the
367 architecture's two (or more) address spaces, but this is an extension
368 of the architecture's model.
369
370 If TYPE_FLAG_INST is set, an object of the corresponding type
371 resides in instruction memory, even if its address (in the extended
372 flat address space) does not reflect this.
373
374 Similarly, if TYPE_FLAG_DATA is set, then an object of the
375 corresponding type resides in the data memory space, even if
376 this is not indicated by its (flat address space) address.
377
378 If neither flag is set, the default space for functions / methods
379 is instruction space, and for data objects is data memory. */
380
381 #define TYPE_CODE_SPACE(t) \
382 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_CODE_SPACE)
383
384 #define TYPE_DATA_SPACE(t) \
385 (TYPE_INSTANCE_FLAGS (t) & TYPE_INSTANCE_FLAG_DATA_SPACE)
386
387 /* * Address class flags. Some environments provide for pointers
388 whose size is different from that of a normal pointer or address
389 types where the bits are interpreted differently than normal
390 addresses. The TYPE_FLAG_ADDRESS_CLASS_n flags may be used in
391 target specific ways to represent these different types of address
392 classes. */
393
394 #define TYPE_ADDRESS_CLASS_1(t) (TYPE_INSTANCE_FLAGS(t) \
395 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1)
396 #define TYPE_ADDRESS_CLASS_2(t) (TYPE_INSTANCE_FLAGS(t) \
397 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
398 #define TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL \
399 (TYPE_INSTANCE_FLAG_ADDRESS_CLASS_1 | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_2)
400 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
401 & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
402
403 /* * Used to store a dynamic property. */
404
405 struct dynamic_prop
406 {
407 /* Determine which field of the union dynamic_prop.data is used. */
408 enum
409 {
410 PROP_UNDEFINED, /* Not defined. */
411 PROP_CONST, /* Constant. */
412 PROP_LOCEXPR, /* Location expression. */
413 PROP_LOCLIST /* Location list. */
414 } kind;
415
416 /* Storage for dynamic or static value. */
417 union data
418 {
419 /* Storage for constant property. */
420
421 LONGEST const_val;
422
423 /* Storage for dynamic property. */
424
425 void *baton;
426 } data;
427 };
428
429
430 /* * Determine which field of the union main_type.fields[x].loc is
431 used. */
432
433 enum field_loc_kind
434 {
435 FIELD_LOC_KIND_BITPOS, /**< bitpos */
436 FIELD_LOC_KIND_ENUMVAL, /**< enumval */
437 FIELD_LOC_KIND_PHYSADDR, /**< physaddr */
438 FIELD_LOC_KIND_PHYSNAME, /**< physname */
439 FIELD_LOC_KIND_DWARF_BLOCK /**< dwarf_block */
440 };
441
442 /* * A discriminant to determine which field in the
443 main_type.type_specific union is being used, if any.
444
445 For types such as TYPE_CODE_FLT or TYPE_CODE_FUNC, the use of this
446 discriminant is really redundant, as we know from the type code
447 which field is going to be used. As such, it would be possible to
448 reduce the size of this enum in order to save a bit or two for
449 other fields of struct main_type. But, since we still have extra
450 room , and for the sake of clarity and consistency, we treat all fields
451 of the union the same way. */
452
453 enum type_specific_kind
454 {
455 TYPE_SPECIFIC_NONE,
456 TYPE_SPECIFIC_CPLUS_STUFF,
457 TYPE_SPECIFIC_GNAT_STUFF,
458 TYPE_SPECIFIC_FLOATFORMAT,
459 TYPE_SPECIFIC_FUNC
460 };
461
462 /* * Main structure representing a type in GDB.
463
464 This structure is space-critical. Its layout has been tweaked to
465 reduce the space used. */
466
467 struct main_type
468 {
469 /* * Code for kind of type. */
470
471 ENUM_BITFIELD(type_code) code : 8;
472
473 /* * Flags about this type. These fields appear at this location
474 because they packs nicely here. See the TYPE_* macros for
475 documentation about these fields. */
476
477 unsigned int flag_unsigned : 1;
478 unsigned int flag_nosign : 1;
479 unsigned int flag_stub : 1;
480 unsigned int flag_target_stub : 1;
481 unsigned int flag_static : 1;
482 unsigned int flag_prototyped : 1;
483 unsigned int flag_incomplete : 1;
484 unsigned int flag_varargs : 1;
485 unsigned int flag_vector : 1;
486 unsigned int flag_stub_supported : 1;
487 unsigned int flag_gnu_ifunc : 1;
488 unsigned int flag_fixed_instance : 1;
489 unsigned int flag_objfile_owned : 1;
490
491 /* * True if this type was declared with "class" rather than
492 "struct". */
493
494 unsigned int flag_declared_class : 1;
495
496 /* * True if this is an enum type with disjoint values. This
497 affects how the enum is printed. */
498
499 unsigned int flag_flag_enum : 1;
500
501 /* * A discriminant telling us which field of the type_specific
502 union is being used for this type, if any. */
503
504 ENUM_BITFIELD(type_specific_kind) type_specific_field : 3;
505
506 /* * Number of fields described for this type. This field appears
507 at this location because it packs nicely here. */
508
509 short nfields;
510
511 /* * Field number of the virtual function table pointer in
512 VPTR_BASETYPE. If -1, we were unable to find the virtual
513 function table pointer in initial symbol reading, and
514 get_vptr_fieldno should be called to find it if possible.
515 get_vptr_fieldno will update this field if possible. Otherwise
516 the value is left at -1.
517
518 Unused if this type does not have virtual functions.
519
520 This field appears at this location because it packs nicely here. */
521
522 short vptr_fieldno;
523
524 /* * Name of this type, or NULL if none.
525
526 This is used for printing only, except by poorly designed C++
527 code. For looking up a name, look for a symbol in the
528 VAR_DOMAIN. This is generally allocated in the objfile's
529 obstack. However coffread.c uses malloc. */
530
531 const char *name;
532
533 /* * Tag name for this type, or NULL if none. This means that the
534 name of the type consists of a keyword followed by the tag name.
535 Which keyword is determined by the type code ("struct" for
536 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only
537 languages with this feature.
538
539 This is used for printing only, except by poorly designed C++ code.
540 For looking up a name, look for a symbol in the STRUCT_DOMAIN.
541 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
542 the name to use to look for definitions in other files. */
543
544 const char *tag_name;
545
546 /* * Every type is now associated with a particular objfile, and the
547 type is allocated on the objfile_obstack for that objfile. One
548 problem however, is that there are times when gdb allocates new
549 types while it is not in the process of reading symbols from a
550 particular objfile. Fortunately, these happen when the type
551 being created is a derived type of an existing type, such as in
552 lookup_pointer_type(). So we can just allocate the new type
553 using the same objfile as the existing type, but to do this we
554 need a backpointer to the objfile from the existing type. Yes
555 this is somewhat ugly, but without major overhaul of the internal
556 type system, it can't be avoided for now. */
557
558 union type_owner
559 {
560 struct objfile *objfile;
561 struct gdbarch *gdbarch;
562 } owner;
563
564 /* * For a pointer type, describes the type of object pointed to.
565 - For an array type, describes the type of the elements.
566 - For a function or method type, describes the type of the return value.
567 - For a range type, describes the type of the full range.
568 - For a complex type, describes the type of each coordinate.
569 - For a special record or union type encoding a dynamic-sized type
570 in GNAT, a memoized pointer to a corresponding static version of
571 the type.
572 - Unused otherwise. */
573
574 struct type *target_type;
575
576 /* * For structure and union types, a description of each field.
577 For set and pascal array types, there is one "field",
578 whose type is the domain type of the set or array.
579 For range types, there are two "fields",
580 the minimum and maximum values (both inclusive).
581 For enum types, each possible value is described by one "field".
582 For a function or method type, a "field" for each parameter.
583 For C++ classes, there is one field for each base class (if it is
584 a derived class) plus one field for each class data member. Member
585 functions are recorded elsewhere.
586
587 Using a pointer to a separate array of fields
588 allows all types to have the same size, which is useful
589 because we can allocate the space for a type before
590 we know what to put in it. */
591
592 union
593 {
594 struct field
595 {
596 union field_location
597 {
598 /* * Position of this field, counting in bits from start of
599 containing structure. For gdbarch_bits_big_endian=1
600 targets, it is the bit offset to the MSB. For
601 gdbarch_bits_big_endian=0 targets, it is the bit offset to
602 the LSB. */
603
604 int bitpos;
605
606 /* * Enum value. */
607 LONGEST enumval;
608
609 /* * For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then
610 physaddr is the location (in the target) of the static
611 field. Otherwise, physname is the mangled label of the
612 static field. */
613
614 CORE_ADDR physaddr;
615 const char *physname;
616
617 /* * The field location can be computed by evaluating the
618 following DWARF block. Its DATA is allocated on
619 objfile_obstack - no CU load is needed to access it. */
620
621 struct dwarf2_locexpr_baton *dwarf_block;
622 }
623 loc;
624
625 /* * For a function or member type, this is 1 if the argument is
626 marked artificial. Artificial arguments should not be shown
627 to the user. For TYPE_CODE_RANGE it is set if the specific
628 bound is not defined. */
629 unsigned int artificial : 1;
630
631 /* * Discriminant for union field_location. */
632 ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
633
634 /* * Size of this field, in bits, or zero if not packed.
635 If non-zero in an array type, indicates the element size in
636 bits (used only in Ada at the moment).
637 For an unpacked field, the field's type's length
638 says how many bytes the field occupies. */
639
640 unsigned int bitsize : 28;
641
642 /* * In a struct or union type, type of this field.
643 - In a function or member type, type of this argument.
644 - In an array type, the domain-type of the array. */
645
646 struct type *type;
647
648 /* * Name of field, value or argument.
649 NULL for range bounds, array domains, and member function
650 arguments. */
651
652 const char *name;
653 } *fields;
654
655 /* * Union member used for range types. */
656
657 struct range_bounds
658 {
659 /* * Low bound of range. */
660
661 struct dynamic_prop low;
662
663 /* * High bound of range. */
664
665 struct dynamic_prop high;
666
667 /* True if HIGH range bound contains the number of elements in the
668 subrange. This affects how the final hight bound is computed. */
669
670 int flag_upper_bound_is_count : 1;
671 } *bounds;
672
673 } flds_bnds;
674
675 /* * For types with virtual functions (TYPE_CODE_STRUCT),
676 VPTR_BASETYPE is the base class which defined the virtual
677 function table pointer.
678
679 For types that are pointer to member types (TYPE_CODE_METHODPTR,
680 TYPE_CODE_MEMBERPTR), VPTR_BASETYPE is the type that this pointer
681 is a member of.
682
683 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
684 type that contains the method.
685
686 Unused otherwise. */
687
688 struct type *vptr_basetype;
689
690 /* * Slot to point to additional language-specific fields of this
691 type. */
692
693 union type_specific
694 {
695 /* * CPLUS_STUFF is for TYPE_CODE_STRUCT. It is initialized to
696 point to cplus_struct_default, a default static instance of a
697 struct cplus_struct_type. */
698
699 struct cplus_struct_type *cplus_stuff;
700
701 /* * GNAT_STUFF is for types for which the GNAT Ada compiler
702 provides additional information. */
703
704 struct gnat_aux_type *gnat_stuff;
705
706 /* * FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to two
707 floatformat objects that describe the floating-point value
708 that resides within the type. The first is for big endian
709 targets and the second is for little endian targets. */
710
711 const struct floatformat **floatformat;
712
713 /* * For TYPE_CODE_FUNC types, */
714
715 struct func_type *func_stuff;
716 } type_specific;
717 };
718
719 /* * A ``struct type'' describes a particular instance of a type, with
720 some particular qualification. */
721
722 struct type
723 {
724 /* * Type that is a pointer to this type.
725 NULL if no such pointer-to type is known yet.
726 The debugger may add the address of such a type
727 if it has to construct one later. */
728
729 struct type *pointer_type;
730
731 /* * C++: also need a reference type. */
732
733 struct type *reference_type;
734
735 /* * Variant chain. This points to a type that differs from this
736 one only in qualifiers and length. Currently, the possible
737 qualifiers are const, volatile, code-space, data-space, and
738 address class. The length may differ only when one of the
739 address class flags are set. The variants are linked in a
740 circular ring and share MAIN_TYPE. */
741
742 struct type *chain;
743
744 /* * Flags specific to this instance of the type, indicating where
745 on the ring we are.
746
747 For TYPE_CODE_TYPEDEF the flags of the typedef type should be
748 binary or-ed with the target type, with a special case for
749 address class and space class. For example if this typedef does
750 not specify any new qualifiers, TYPE_INSTANCE_FLAGS is 0 and the
751 instance flags are completely inherited from the target type. No
752 qualifiers can be cleared by the typedef. See also
753 check_typedef. */
754 int instance_flags;
755
756 /* * Length of storage for a value of this type. This is what
757 sizeof(type) would return; use it for address arithmetic, memory
758 reads and writes, etc. This size includes padding. For example,
759 an i386 extended-precision floating point value really only
760 occupies ten bytes, but most ABI's declare its size to be 12
761 bytes, to preserve alignment. A `struct type' representing such
762 a floating-point type would have a `length' value of 12, even
763 though the last two bytes are unused.
764
765 There's a bit of a host/target mess here, if you're concerned
766 about machines whose bytes aren't eight bits long, or who don't
767 have byte-addressed memory. Various places pass this to memcpy
768 and such, meaning it must be in units of host bytes. Various
769 other places expect they can calculate addresses by adding it
770 and such, meaning it must be in units of target bytes. For
771 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
772 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
773
774 One fix would be to make this field in bits (requiring that it
775 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
776 the other choice would be to make it consistently in units of
777 HOST_CHAR_BIT. However, this would still fail to address
778 machines based on a ternary or decimal representation. */
779
780 unsigned length;
781
782 /* * Core type, shared by a group of qualified types. */
783
784 struct main_type *main_type;
785 };
786
787 #define NULL_TYPE ((struct type *) 0)
788
789 /* * C++ language-specific information for TYPE_CODE_STRUCT and
790 TYPE_CODE_UNION nodes. */
791
792 struct cplus_struct_type
793 {
794 /* * Number of base classes this type derives from. The
795 baseclasses are stored in the first N_BASECLASSES fields
796 (i.e. the `fields' field of the struct type). I think only the
797 `type' field of such a field has any meaning. */
798
799 short n_baseclasses;
800
801 /* * Number of methods with unique names. All overloaded methods
802 with the same name count only once. */
803
804 short nfn_fields;
805
806 /* * Number of template arguments. */
807
808 unsigned short n_template_arguments;
809
810 /* * One if this struct is a dynamic class, as defined by the
811 Itanium C++ ABI: if it requires a virtual table pointer,
812 because it or any of its base classes have one or more virtual
813 member functions or virtual base classes. Minus one if not
814 dynamic. Zero if not yet computed. */
815
816 int is_dynamic : 2;
817
818 /* * Non-zero if this type came from a Java CU. */
819
820 unsigned int is_java : 1;
821
822 /* * For derived classes, the number of base classes is given by
823 n_baseclasses and virtual_field_bits is a bit vector containing
824 one bit per base class. If the base class is virtual, the
825 corresponding bit will be set.
826 I.E, given:
827
828 class A{};
829 class B{};
830 class C : public B, public virtual A {};
831
832 B is a baseclass of C; A is a virtual baseclass for C.
833 This is a C++ 2.0 language feature. */
834
835 B_TYPE *virtual_field_bits;
836
837 /* * For classes with private fields, the number of fields is
838 given by nfields and private_field_bits is a bit vector
839 containing one bit per field.
840
841 If the field is private, the corresponding bit will be set. */
842
843 B_TYPE *private_field_bits;
844
845 /* * For classes with protected fields, the number of fields is
846 given by nfields and protected_field_bits is a bit vector
847 containing one bit per field.
848
849 If the field is private, the corresponding bit will be set. */
850
851 B_TYPE *protected_field_bits;
852
853 /* * For classes with fields to be ignored, either this is
854 optimized out or this field has length 0. */
855
856 B_TYPE *ignore_field_bits;
857
858 /* * For classes, structures, and unions, a description of each
859 field, which consists of an overloaded name, followed by the
860 types of arguments that the method expects, and then the name
861 after it has been renamed to make it distinct.
862
863 fn_fieldlists points to an array of nfn_fields of these. */
864
865 struct fn_fieldlist
866 {
867
868 /* * The overloaded name.
869 This is generally allocated in the objfile's obstack.
870 However stabsread.c sometimes uses malloc. */
871
872 const char *name;
873
874 /* * The number of methods with this name. */
875
876 int length;
877
878 /* * The list of methods. */
879
880 struct fn_field
881 {
882
883 /* * If is_stub is clear, this is the mangled name which
884 we can look up to find the address of the method
885 (FIXME: it would be cleaner to have a pointer to the
886 struct symbol here instead).
887
888 If is_stub is set, this is the portion of the mangled
889 name which specifies the arguments. For example, "ii",
890 if there are two int arguments, or "" if there are no
891 arguments. See gdb_mangle_name for the conversion from
892 this format to the one used if is_stub is clear. */
893
894 const char *physname;
895
896 /* * The function type for the method.
897
898 (This comment used to say "The return value of the
899 method", but that's wrong. The function type is
900 expected here, i.e. something with TYPE_CODE_FUNC, and
901 *not* the return-value type). */
902
903 struct type *type;
904
905 /* * For virtual functions.
906 First baseclass that defines this virtual function. */
907
908 struct type *fcontext;
909
910 /* Attributes. */
911
912 unsigned int is_const:1;
913 unsigned int is_volatile:1;
914 unsigned int is_private:1;
915 unsigned int is_protected:1;
916 unsigned int is_public:1;
917 unsigned int is_abstract:1;
918 unsigned int is_static:1;
919 unsigned int is_final:1;
920 unsigned int is_synchronized:1;
921 unsigned int is_native:1;
922 unsigned int is_artificial:1;
923
924 /* * A stub method only has some fields valid (but they
925 are enough to reconstruct the rest of the fields). */
926
927 unsigned int is_stub:1;
928
929 /* * True if this function is a constructor, false
930 otherwise. */
931
932 unsigned int is_constructor : 1;
933
934 /* * Unused. */
935
936 unsigned int dummy:3;
937
938 /* * Index into that baseclass's virtual function table,
939 minus 2; else if static: VOFFSET_STATIC; else: 0. */
940
941 unsigned int voffset:16;
942
943 #define VOFFSET_STATIC 1
944
945 }
946 *fn_fields;
947
948 }
949 *fn_fieldlists;
950
951 /* * typedefs defined inside this class. typedef_field points to
952 an array of typedef_field_count elements. */
953
954 struct typedef_field
955 {
956 /* * Unqualified name to be prefixed by owning class qualified
957 name. */
958
959 const char *name;
960
961 /* * Type this typedef named NAME represents. */
962
963 struct type *type;
964 }
965 *typedef_field;
966 unsigned typedef_field_count;
967
968 /* * The template arguments. This is an array with
969 N_TEMPLATE_ARGUMENTS elements. This is NULL for non-template
970 classes. */
971
972 struct symbol **template_arguments;
973 };
974
975 /* * Struct used to store conversion rankings. */
976
977 struct rank
978 {
979 short rank;
980
981 /* * When two conversions are of the same type and therefore have
982 the same rank, subrank is used to differentiate the two.
983
984 Eg: Two derived-class-pointer to base-class-pointer conversions
985 would both have base pointer conversion rank, but the
986 conversion with the shorter distance to the ancestor is
987 preferable. 'subrank' would be used to reflect that. */
988
989 short subrank;
990 };
991
992 /* * Struct used for ranking a function for overload resolution. */
993
994 struct badness_vector
995 {
996 int length;
997 struct rank *rank;
998 };
999
1000 /* * GNAT Ada-specific information for various Ada types. */
1001
1002 struct gnat_aux_type
1003 {
1004 /* * Parallel type used to encode information about dynamic types
1005 used in Ada (such as variant records, variable-size array,
1006 etc). */
1007 struct type* descriptive_type;
1008 };
1009
1010 /* * For TYPE_CODE_FUNC types. */
1011
1012 struct func_type
1013 {
1014 /* * The calling convention for targets supporting multiple ABIs.
1015 Right now this is only fetched from the Dwarf-2
1016 DW_AT_calling_convention attribute. */
1017
1018 unsigned calling_convention;
1019
1020 /* * Only those DW_TAG_GNU_call_site's in this function that have
1021 DW_AT_GNU_tail_call set are linked in this list. Function
1022 without its tail call list complete
1023 (DW_AT_GNU_all_tail_call_sites or its superset
1024 DW_AT_GNU_all_call_sites) has TAIL_CALL_LIST NULL, even if some
1025 DW_TAG_GNU_call_site's exist in such function. */
1026
1027 struct call_site *tail_call_list;
1028 };
1029
1030 /* struct call_site_parameter can be referenced in callees by several ways. */
1031
1032 enum call_site_parameter_kind
1033 {
1034 /* * Use field call_site_parameter.u.dwarf_reg. */
1035 CALL_SITE_PARAMETER_DWARF_REG,
1036
1037 /* * Use field call_site_parameter.u.fb_offset. */
1038 CALL_SITE_PARAMETER_FB_OFFSET,
1039
1040 /* * Use field call_site_parameter.u.param_offset. */
1041 CALL_SITE_PARAMETER_PARAM_OFFSET
1042 };
1043
1044 /* * A place where a function gets called from, represented by
1045 DW_TAG_GNU_call_site. It can be looked up from
1046 symtab->call_site_htab. */
1047
1048 struct call_site
1049 {
1050 /* * Address of the first instruction after this call. It must be
1051 the first field as we overload core_addr_hash and core_addr_eq
1052 for it. */
1053
1054 CORE_ADDR pc;
1055
1056 /* * List successor with head in FUNC_TYPE.TAIL_CALL_LIST. */
1057
1058 struct call_site *tail_call_next;
1059
1060 /* * Describe DW_AT_GNU_call_site_target. Missing attribute uses
1061 FIELD_LOC_KIND_DWARF_BLOCK with FIELD_DWARF_BLOCK == NULL. */
1062
1063 struct
1064 {
1065 union field_location loc;
1066
1067 /* * Discriminant for union field_location. */
1068
1069 ENUM_BITFIELD(field_loc_kind) loc_kind : 3;
1070 }
1071 target;
1072
1073 /* * Size of the PARAMETER array. */
1074
1075 unsigned parameter_count;
1076
1077 /* * CU of the function where the call is located. It gets used
1078 for DWARF blocks execution in the parameter array below. */
1079
1080 struct dwarf2_per_cu_data *per_cu;
1081
1082 /* * Describe DW_TAG_GNU_call_site's DW_TAG_formal_parameter. */
1083
1084 struct call_site_parameter
1085 {
1086 ENUM_BITFIELD (call_site_parameter_kind) kind : 2;
1087
1088 union call_site_parameter_u
1089 {
1090 /* * DW_TAG_formal_parameter's DW_AT_location's DW_OP_regX
1091 as DWARF register number, for register passed
1092 parameters. */
1093
1094 int dwarf_reg;
1095
1096 /* * Offset from the callee's frame base, for stack passed
1097 parameters. This equals offset from the caller's stack
1098 pointer. */
1099
1100 CORE_ADDR fb_offset;
1101
1102 /* * Offset relative to the start of this PER_CU to
1103 DW_TAG_formal_parameter which is referenced by both
1104 caller and the callee. */
1105
1106 cu_offset param_offset;
1107 }
1108 u;
1109
1110 /* * DW_TAG_formal_parameter's DW_AT_GNU_call_site_value. It
1111 is never NULL. */
1112
1113 const gdb_byte *value;
1114 size_t value_size;
1115
1116 /* * DW_TAG_formal_parameter's DW_AT_GNU_call_site_data_value.
1117 It may be NULL if not provided by DWARF. */
1118
1119 const gdb_byte *data_value;
1120 size_t data_value_size;
1121 }
1122 parameter[1];
1123 };
1124
1125 /* * The default value of TYPE_CPLUS_SPECIFIC(T) points to this shared
1126 static structure. */
1127
1128 extern const struct cplus_struct_type cplus_struct_default;
1129
1130 extern void allocate_cplus_struct_type (struct type *);
1131
1132 #define INIT_CPLUS_SPECIFIC(type) \
1133 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF, \
1134 TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type*) \
1135 &cplus_struct_default)
1136
1137 #define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
1138
1139 #define HAVE_CPLUS_STRUCT(type) \
1140 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF \
1141 && TYPE_RAW_CPLUS_SPECIFIC (type) != &cplus_struct_default)
1142
1143 extern const struct gnat_aux_type gnat_aux_default;
1144
1145 extern void allocate_gnat_aux_type (struct type *);
1146
1147 #define INIT_GNAT_SPECIFIC(type) \
1148 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF, \
1149 TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) &gnat_aux_default)
1150 #define ALLOCATE_GNAT_AUX_TYPE(type) allocate_gnat_aux_type (type)
1151 /* * A macro that returns non-zero if the type-specific data should be
1152 read as "gnat-stuff". */
1153 #define HAVE_GNAT_AUX_INFO(type) \
1154 (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_GNAT_STUFF)
1155
1156 #define INIT_FUNC_SPECIFIC(type) \
1157 (TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FUNC, \
1158 TYPE_MAIN_TYPE (type)->type_specific.func_stuff \
1159 = TYPE_ZALLOC (type, \
1160 sizeof (*TYPE_MAIN_TYPE (type)->type_specific.func_stuff)))
1161
1162 #define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
1163 #define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
1164 #define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
1165 #define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
1166 #define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
1167 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
1168 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
1169 #define TYPE_CHAIN(thistype) (thistype)->chain
1170 /* * Note that if thistype is a TYPEDEF type, you have to call check_typedef.
1171 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
1172 so you only have to call check_typedef once. Since allocate_value
1173 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
1174 #define TYPE_LENGTH(thistype) (thistype)->length
1175 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
1176 type, you need to do TYPE_CODE (check_type (this_type)). */
1177 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
1178 #define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
1179 #define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields
1180
1181 #define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
1182 #define TYPE_RANGE_DATA(thistype) TYPE_MAIN_TYPE(thistype)->flds_bnds.bounds
1183 #define TYPE_LOW_BOUND(range_type) \
1184 TYPE_RANGE_DATA(range_type)->low.data.const_val
1185 #define TYPE_HIGH_BOUND(range_type) \
1186 TYPE_RANGE_DATA(range_type)->high.data.const_val
1187 #define TYPE_LOW_BOUND_UNDEFINED(range_type) \
1188 (TYPE_RANGE_DATA(range_type)->low.kind == PROP_UNDEFINED)
1189 #define TYPE_HIGH_BOUND_UNDEFINED(range_type) \
1190 (TYPE_RANGE_DATA(range_type)->high.kind == PROP_UNDEFINED)
1191 #define TYPE_HIGH_BOUND_KIND(range_type) \
1192 TYPE_RANGE_DATA(range_type)->high.kind
1193 #define TYPE_LOW_BOUND_KIND(range_type) \
1194 TYPE_RANGE_DATA(range_type)->low.kind
1195
1196 /* Moto-specific stuff for FORTRAN arrays. */
1197
1198 #define TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED(arraytype) \
1199 TYPE_HIGH_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1200 #define TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED(arraytype) \
1201 TYPE_LOW_BOUND_UNDEFINED(TYPE_INDEX_TYPE(arraytype))
1202
1203 #define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
1204 (TYPE_HIGH_BOUND(TYPE_INDEX_TYPE((arraytype))))
1205
1206 #define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
1207 (TYPE_LOW_BOUND(TYPE_INDEX_TYPE((arraytype))))
1208
1209 /* C++ */
1210
1211 #define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
1212 #define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
1213 #define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
1214 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
1215 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
1216 #define TYPE_SPECIFIC_FIELD(thistype) \
1217 TYPE_MAIN_TYPE(thistype)->type_specific_field
1218 #define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
1219 /* We need this tap-dance with the TYPE_RAW_SPECIFIC because of the case
1220 where we're trying to print an Ada array using the C language.
1221 In that case, there is no "cplus_stuff", but the C language assumes
1222 that there is. What we do, in that case, is pretend that there is
1223 an implicit one which is the default cplus stuff. */
1224 #define TYPE_CPLUS_SPECIFIC(thistype) \
1225 (!HAVE_CPLUS_STRUCT(thistype) \
1226 ? (struct cplus_struct_type*)&cplus_struct_default \
1227 : TYPE_RAW_CPLUS_SPECIFIC(thistype))
1228 #define TYPE_RAW_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
1229 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
1230 #define TYPE_GNAT_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.gnat_stuff
1231 #define TYPE_DESCRIPTIVE_TYPE(thistype) TYPE_GNAT_SPECIFIC(thistype)->descriptive_type
1232 #define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->calling_convention
1233 #define TYPE_TAIL_CALL_LIST(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.func_stuff->tail_call_list
1234 #define TYPE_BASECLASS(thistype,index) TYPE_FIELD_TYPE(thistype, index)
1235 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
1236 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_FIELD_NAME(thistype, index)
1237 #define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
1238 #define BASETYPE_VIA_PUBLIC(thistype, index) \
1239 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
1240 #define TYPE_CPLUS_DYNAMIC(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_dynamic
1241 #define TYPE_CPLUS_REALLY_JAVA(thistype) TYPE_CPLUS_SPECIFIC (thistype)->is_java
1242
1243 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
1244 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1245 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
1246
1247 #define FIELD_TYPE(thisfld) ((thisfld).type)
1248 #define FIELD_NAME(thisfld) ((thisfld).name)
1249 #define FIELD_LOC_KIND(thisfld) ((thisfld).loc_kind)
1250 #define FIELD_BITPOS_LVAL(thisfld) ((thisfld).loc.bitpos)
1251 #define FIELD_BITPOS(thisfld) (FIELD_BITPOS_LVAL (thisfld) + 0)
1252 #define FIELD_ENUMVAL_LVAL(thisfld) ((thisfld).loc.enumval)
1253 #define FIELD_ENUMVAL(thisfld) (FIELD_ENUMVAL_LVAL (thisfld) + 0)
1254 #define FIELD_STATIC_PHYSNAME(thisfld) ((thisfld).loc.physname)
1255 #define FIELD_STATIC_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
1256 #define FIELD_DWARF_BLOCK(thisfld) ((thisfld).loc.dwarf_block)
1257 #define SET_FIELD_BITPOS(thisfld, bitpos) \
1258 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_BITPOS, \
1259 FIELD_BITPOS_LVAL (thisfld) = (bitpos))
1260 #define SET_FIELD_ENUMVAL(thisfld, enumval) \
1261 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_ENUMVAL, \
1262 FIELD_ENUMVAL_LVAL (thisfld) = (enumval))
1263 #define SET_FIELD_PHYSNAME(thisfld, name) \
1264 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSNAME, \
1265 FIELD_STATIC_PHYSNAME (thisfld) = (name))
1266 #define SET_FIELD_PHYSADDR(thisfld, addr) \
1267 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_PHYSADDR, \
1268 FIELD_STATIC_PHYSADDR (thisfld) = (addr))
1269 #define SET_FIELD_DWARF_BLOCK(thisfld, addr) \
1270 (FIELD_LOC_KIND (thisfld) = FIELD_LOC_KIND_DWARF_BLOCK, \
1271 FIELD_DWARF_BLOCK (thisfld) = (addr))
1272 #define FIELD_ARTIFICIAL(thisfld) ((thisfld).artificial)
1273 #define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
1274
1275 #define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->flds_bnds.fields[n]
1276 #define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
1277 #define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
1278 #define TYPE_FIELD_LOC_KIND(thistype, n) FIELD_LOC_KIND (TYPE_FIELD (thistype, n))
1279 #define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS (TYPE_FIELD (thistype, n))
1280 #define TYPE_FIELD_ENUMVAL(thistype, n) FIELD_ENUMVAL (TYPE_FIELD (thistype, n))
1281 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_STATIC_PHYSNAME (TYPE_FIELD (thistype, n))
1282 #define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_STATIC_PHYSADDR (TYPE_FIELD (thistype, n))
1283 #define TYPE_FIELD_DWARF_BLOCK(thistype, n) FIELD_DWARF_BLOCK (TYPE_FIELD (thistype, n))
1284 #define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
1285 #define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
1286 #define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
1287
1288 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
1289 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
1290 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
1291 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
1292 #define TYPE_FIELD_IGNORE_BITS(thistype) \
1293 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
1294 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
1295 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
1296 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
1297 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
1298 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
1299 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
1300 #define SET_TYPE_FIELD_IGNORE(thistype, n) \
1301 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
1302 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
1303 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
1304 #define TYPE_FIELD_PRIVATE(thistype, n) \
1305 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
1306 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
1307 #define TYPE_FIELD_PROTECTED(thistype, n) \
1308 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
1309 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
1310 #define TYPE_FIELD_IGNORE(thistype, n) \
1311 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
1312 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
1313 #define TYPE_FIELD_VIRTUAL(thistype, n) \
1314 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
1315 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
1316
1317 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
1318 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
1319 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
1320 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
1321 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
1322
1323 #define TYPE_N_TEMPLATE_ARGUMENTS(thistype) \
1324 TYPE_CPLUS_SPECIFIC (thistype)->n_template_arguments
1325 #define TYPE_TEMPLATE_ARGUMENTS(thistype) \
1326 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments
1327 #define TYPE_TEMPLATE_ARGUMENT(thistype, n) \
1328 TYPE_CPLUS_SPECIFIC (thistype)->template_arguments[n]
1329
1330 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
1331 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
1332 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
1333 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_FIELDS ((thisfn)[n].type)
1334 #define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
1335 #define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
1336 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
1337 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
1338 #define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
1339 #define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
1340 #define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
1341 #define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
1342 #define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
1343 #define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
1344 #define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
1345 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
1346 #define TYPE_FN_FIELD_CONSTRUCTOR(thisfn, n) ((thisfn)[n].is_constructor)
1347 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
1348 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
1349 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
1350 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
1351
1352 #define TYPE_TYPEDEF_FIELD_ARRAY(thistype) \
1353 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field
1354 #define TYPE_TYPEDEF_FIELD(thistype, n) \
1355 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field[n]
1356 #define TYPE_TYPEDEF_FIELD_NAME(thistype, n) \
1357 TYPE_TYPEDEF_FIELD (thistype, n).name
1358 #define TYPE_TYPEDEF_FIELD_TYPE(thistype, n) \
1359 TYPE_TYPEDEF_FIELD (thistype, n).type
1360 #define TYPE_TYPEDEF_FIELD_COUNT(thistype) \
1361 TYPE_CPLUS_SPECIFIC (thistype)->typedef_field_count
1362
1363 #define TYPE_IS_OPAQUE(thistype) \
1364 (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) \
1365 || (TYPE_CODE (thistype) == TYPE_CODE_UNION)) \
1366 && (TYPE_NFIELDS (thistype) == 0) \
1367 && (!HAVE_CPLUS_STRUCT (thistype) \
1368 || TYPE_NFN_FIELDS (thistype) == 0) \
1369 && (TYPE_STUB (thistype) || !TYPE_STUB_SUPPORTED (thistype)))
1370
1371 /* * A helper macro that returns the name of a type or "unnamed type"
1372 if the type has no name. */
1373
1374 #define TYPE_SAFE_NAME(type) \
1375 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<unnamed type>"))
1376
1377 /* * A helper macro that returns the name of an error type. If the
1378 type has a name, it is used; otherwise, a default is used. */
1379
1380 #define TYPE_ERROR_NAME(type) \
1381 (TYPE_NAME (type) ? TYPE_NAME (type) : _("<error type>"))
1382
1383 struct builtin_type
1384 {
1385 /* Integral types. */
1386
1387 /* Implicit size/sign (based on the architecture's ABI). */
1388 struct type *builtin_void;
1389 struct type *builtin_char;
1390 struct type *builtin_short;
1391 struct type *builtin_int;
1392 struct type *builtin_long;
1393 struct type *builtin_signed_char;
1394 struct type *builtin_unsigned_char;
1395 struct type *builtin_unsigned_short;
1396 struct type *builtin_unsigned_int;
1397 struct type *builtin_unsigned_long;
1398 struct type *builtin_float;
1399 struct type *builtin_double;
1400 struct type *builtin_long_double;
1401 struct type *builtin_complex;
1402 struct type *builtin_double_complex;
1403 struct type *builtin_string;
1404 struct type *builtin_bool;
1405 struct type *builtin_long_long;
1406 struct type *builtin_unsigned_long_long;
1407 struct type *builtin_decfloat;
1408 struct type *builtin_decdouble;
1409 struct type *builtin_declong;
1410
1411 /* "True" character types.
1412 We use these for the '/c' print format, because c_char is just a
1413 one-byte integral type, which languages less laid back than C
1414 will print as ... well, a one-byte integral type. */
1415 struct type *builtin_true_char;
1416 struct type *builtin_true_unsigned_char;
1417
1418 /* Explicit sizes - see C9X <intypes.h> for naming scheme. The "int0"
1419 is for when an architecture needs to describe a register that has
1420 no size. */
1421 struct type *builtin_int0;
1422 struct type *builtin_int8;
1423 struct type *builtin_uint8;
1424 struct type *builtin_int16;
1425 struct type *builtin_uint16;
1426 struct type *builtin_int32;
1427 struct type *builtin_uint32;
1428 struct type *builtin_int64;
1429 struct type *builtin_uint64;
1430 struct type *builtin_int128;
1431 struct type *builtin_uint128;
1432
1433 /* Wide character types. */
1434 struct type *builtin_char16;
1435 struct type *builtin_char32;
1436
1437 /* Pointer types. */
1438
1439 /* * `pointer to data' type. Some target platforms use an implicitly
1440 {sign,zero} -extended 32-bit ABI pointer on a 64-bit ISA. */
1441 struct type *builtin_data_ptr;
1442
1443 /* * `pointer to function (returning void)' type. Harvard
1444 architectures mean that ABI function and code pointers are not
1445 interconvertible. Similarly, since ANSI, C standards have
1446 explicitly said that pointers to functions and pointers to data
1447 are not interconvertible --- that is, you can't cast a function
1448 pointer to void * and back, and expect to get the same value.
1449 However, all function pointer types are interconvertible, so void
1450 (*) () can server as a generic function pointer. */
1451
1452 struct type *builtin_func_ptr;
1453
1454 /* * `function returning pointer to function (returning void)' type.
1455 The final void return type is not significant for it. */
1456
1457 struct type *builtin_func_func;
1458
1459 /* Special-purpose types. */
1460
1461 /* * This type is used to represent a GDB internal function. */
1462
1463 struct type *internal_fn;
1464 };
1465
1466 /* * Return the type table for the specified architecture. */
1467
1468 extern const struct builtin_type *builtin_type (struct gdbarch *gdbarch);
1469
1470 /* * Per-objfile types used by symbol readers. */
1471
1472 struct objfile_type
1473 {
1474 /* Basic types based on the objfile architecture. */
1475 struct type *builtin_void;
1476 struct type *builtin_char;
1477 struct type *builtin_short;
1478 struct type *builtin_int;
1479 struct type *builtin_long;
1480 struct type *builtin_long_long;
1481 struct type *builtin_signed_char;
1482 struct type *builtin_unsigned_char;
1483 struct type *builtin_unsigned_short;
1484 struct type *builtin_unsigned_int;
1485 struct type *builtin_unsigned_long;
1486 struct type *builtin_unsigned_long_long;
1487 struct type *builtin_float;
1488 struct type *builtin_double;
1489 struct type *builtin_long_double;
1490
1491 /* * This type is used to represent symbol addresses. */
1492 struct type *builtin_core_addr;
1493
1494 /* * This type represents a type that was unrecognized in symbol
1495 read-in. */
1496 struct type *builtin_error;
1497
1498 /* * Types used for symbols with no debug information. */
1499 struct type *nodebug_text_symbol;
1500 struct type *nodebug_text_gnu_ifunc_symbol;
1501 struct type *nodebug_got_plt_symbol;
1502 struct type *nodebug_data_symbol;
1503 struct type *nodebug_unknown_symbol;
1504 struct type *nodebug_tls_symbol;
1505 };
1506
1507 /* * Return the type table for the specified objfile. */
1508
1509 extern const struct objfile_type *objfile_type (struct objfile *objfile);
1510
1511 /* Explicit floating-point formats. See "floatformat.h". */
1512 extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN];
1513 extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
1514 extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
1515 extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
1516 extern const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN];
1517 extern const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN];
1518 extern const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN];
1519 extern const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN];
1520 extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN];
1521 extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN];
1522 extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN];
1523 extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN];
1524
1525
1526 /* * Allocate space for storing data associated with a particular
1527 type. We ensure that the space is allocated using the same
1528 mechanism that was used to allocate the space for the type
1529 structure itself. I.e. if the type is on an objfile's
1530 objfile_obstack, then the space for data associated with that type
1531 will also be allocated on the objfile_obstack. If the type is not
1532 associated with any particular objfile (such as builtin types),
1533 then the data space will be allocated with xmalloc, the same as for
1534 the type structure. */
1535
1536 #define TYPE_ALLOC(t,size) \
1537 (TYPE_OBJFILE_OWNED (t) \
1538 ? obstack_alloc (&TYPE_OBJFILE (t) -> objfile_obstack, size) \
1539 : xmalloc (size))
1540
1541 #define TYPE_ZALLOC(t,size) \
1542 (TYPE_OBJFILE_OWNED (t) \
1543 ? memset (obstack_alloc (&TYPE_OBJFILE (t)->objfile_obstack, size), \
1544 0, size) \
1545 : xzalloc (size))
1546
1547 /* Use alloc_type to allocate a type owned by an objfile. Use
1548 alloc_type_arch to allocate a type owned by an architecture. Use
1549 alloc_type_copy to allocate a type with the same owner as a
1550 pre-existing template type, no matter whether objfile or
1551 gdbarch. */
1552 extern struct type *alloc_type (struct objfile *);
1553 extern struct type *alloc_type_arch (struct gdbarch *);
1554 extern struct type *alloc_type_copy (const struct type *);
1555
1556 /* * Return the type's architecture. For types owned by an
1557 architecture, that architecture is returned. For types owned by an
1558 objfile, that objfile's architecture is returned. */
1559
1560 extern struct gdbarch *get_type_arch (const struct type *);
1561
1562 /* * This returns the target type (or NULL) of TYPE, also skipping
1563 past typedefs. */
1564
1565 extern struct type *get_target_type (struct type *type);
1566
1567 /* * Helper function to construct objfile-owned types. */
1568
1569 extern struct type *init_type (enum type_code, int, int, const char *,
1570 struct objfile *);
1571
1572 /* Helper functions to construct architecture-owned types. */
1573 extern struct type *arch_type (struct gdbarch *, enum type_code, int, char *);
1574 extern struct type *arch_integer_type (struct gdbarch *, int, int, char *);
1575 extern struct type *arch_character_type (struct gdbarch *, int, int, char *);
1576 extern struct type *arch_boolean_type (struct gdbarch *, int, int, char *);
1577 extern struct type *arch_float_type (struct gdbarch *, int, char *,
1578 const struct floatformat **);
1579 extern struct type *arch_complex_type (struct gdbarch *, char *,
1580 struct type *);
1581
1582 /* Helper functions to construct a struct or record type. An
1583 initially empty type is created using arch_composite_type().
1584 Fields are then added using append_composite_type_field*(). A union
1585 type has its size set to the largest field. A struct type has each
1586 field packed against the previous. */
1587
1588 extern struct type *arch_composite_type (struct gdbarch *gdbarch,
1589 char *name, enum type_code code);
1590 extern void append_composite_type_field (struct type *t, char *name,
1591 struct type *field);
1592 extern void append_composite_type_field_aligned (struct type *t,
1593 char *name,
1594 struct type *field,
1595 int alignment);
1596 struct field *append_composite_type_field_raw (struct type *t, char *name,
1597 struct type *field);
1598
1599 /* Helper functions to construct a bit flags type. An initially empty
1600 type is created using arch_flag_type(). Flags are then added using
1601 append_flag_type_flag(). */
1602 extern struct type *arch_flags_type (struct gdbarch *gdbarch,
1603 char *name, int length);
1604 extern void append_flags_type_flag (struct type *type, int bitpos, char *name);
1605
1606 extern void make_vector_type (struct type *array_type);
1607 extern struct type *init_vector_type (struct type *elt_type, int n);
1608
1609 extern struct type *lookup_reference_type (struct type *);
1610
1611 extern struct type *make_reference_type (struct type *, struct type **);
1612
1613 extern struct type *make_cv_type (int, int, struct type *, struct type **);
1614
1615 extern struct type *make_restrict_type (struct type *);
1616
1617 extern void replace_type (struct type *, struct type *);
1618
1619 extern int address_space_name_to_int (struct gdbarch *, char *);
1620
1621 extern const char *address_space_int_to_name (struct gdbarch *, int);
1622
1623 extern struct type *make_type_with_address_space (struct type *type,
1624 int space_identifier);
1625
1626 extern struct type *lookup_memberptr_type (struct type *, struct type *);
1627
1628 extern struct type *lookup_methodptr_type (struct type *);
1629
1630 extern void smash_to_method_type (struct type *type, struct type *domain,
1631 struct type *to_type, struct field *args,
1632 int nargs, int varargs);
1633
1634 extern void smash_to_memberptr_type (struct type *, struct type *,
1635 struct type *);
1636
1637 extern void smash_to_methodptr_type (struct type *, struct type *);
1638
1639 extern struct type *allocate_stub_method (struct type *);
1640
1641 extern const char *type_name_no_tag (const struct type *);
1642
1643 extern const char *type_name_no_tag_or_error (struct type *type);
1644
1645 extern struct type *lookup_struct_elt_type (struct type *, const char *, int);
1646
1647 extern struct type *make_pointer_type (struct type *, struct type **);
1648
1649 extern struct type *lookup_pointer_type (struct type *);
1650
1651 extern struct type *make_function_type (struct type *, struct type **);
1652
1653 extern struct type *lookup_function_type (struct type *);
1654
1655 extern struct type *lookup_function_type_with_arguments (struct type *,
1656 int,
1657 struct type **);
1658
1659 extern struct type *create_static_range_type (struct type *, struct type *,
1660 LONGEST, LONGEST);
1661
1662
1663 extern struct type *create_array_type_with_stride
1664 (struct type *, struct type *, struct type *, unsigned int);
1665
1666 extern struct type *create_range_type (struct type *, struct type *,
1667 const struct dynamic_prop *,
1668 const struct dynamic_prop *);
1669
1670 extern struct type *create_array_type (struct type *, struct type *,
1671 struct type *);
1672
1673 extern struct type *lookup_array_range_type (struct type *, LONGEST, LONGEST);
1674
1675 extern struct type *create_string_type (struct type *, struct type *,
1676 struct type *);
1677 extern struct type *lookup_string_range_type (struct type *, LONGEST, LONGEST);
1678
1679 extern struct type *create_set_type (struct type *, struct type *);
1680
1681 extern struct type *lookup_unsigned_typename (const struct language_defn *,
1682 struct gdbarch *, const char *);
1683
1684 extern struct type *lookup_signed_typename (const struct language_defn *,
1685 struct gdbarch *, const char *);
1686
1687 extern void get_unsigned_type_max (struct type *, ULONGEST *);
1688
1689 extern void get_signed_type_minmax (struct type *, LONGEST *, LONGEST *);
1690
1691 /* * Resolve all dynamic values of a type e.g. array bounds to static values.
1692 ADDR specifies the location of the variable the type is bound to.
1693 If TYPE has no dynamic properties return TYPE; otherwise a new type with
1694 static properties is returned. */
1695 extern struct type *resolve_dynamic_type (struct type *type, CORE_ADDR addr);
1696
1697 /* * Predicate if the type has dynamic values, which are not resolved yet. */
1698 extern int is_dynamic_type (struct type *type);
1699
1700 extern struct type *check_typedef (struct type *);
1701
1702 #define CHECK_TYPEDEF(TYPE) \
1703 do { \
1704 (TYPE) = check_typedef (TYPE); \
1705 } while (0)
1706
1707 extern void check_stub_method_group (struct type *, int);
1708
1709 extern char *gdb_mangle_name (struct type *, int, int);
1710
1711 extern struct type *lookup_typename (const struct language_defn *,
1712 struct gdbarch *, const char *,
1713 const struct block *, int);
1714
1715 extern struct type *lookup_template_type (char *, struct type *,
1716 const struct block *);
1717
1718 extern int get_vptr_fieldno (struct type *, struct type **);
1719
1720 extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
1721
1722 extern int get_array_bounds (struct type *type, LONGEST *low_bound,
1723 LONGEST *high_bound);
1724
1725 extern int class_types_same_p (const struct type *, const struct type *);
1726
1727 extern int is_ancestor (struct type *, struct type *);
1728
1729 extern int is_public_ancestor (struct type *, struct type *);
1730
1731 extern int is_unique_ancestor (struct type *, struct value *);
1732
1733 /* Overload resolution */
1734
1735 #define LENGTH_MATCH(bv) ((bv)->rank[0])
1736
1737 /* * Badness if parameter list length doesn't match arg list length. */
1738 extern const struct rank LENGTH_MISMATCH_BADNESS;
1739
1740 /* * Dummy badness value for nonexistent parameter positions. */
1741 extern const struct rank TOO_FEW_PARAMS_BADNESS;
1742 /* * Badness if no conversion among types. */
1743 extern const struct rank INCOMPATIBLE_TYPE_BADNESS;
1744
1745 /* * Badness of an exact match. */
1746 extern const struct rank EXACT_MATCH_BADNESS;
1747
1748 /* * Badness of integral promotion. */
1749 extern const struct rank INTEGER_PROMOTION_BADNESS;
1750 /* * Badness of floating promotion. */
1751 extern const struct rank FLOAT_PROMOTION_BADNESS;
1752 /* * Badness of converting a derived class pointer
1753 to a base class pointer. */
1754 extern const struct rank BASE_PTR_CONVERSION_BADNESS;
1755 /* * Badness of integral conversion. */
1756 extern const struct rank INTEGER_CONVERSION_BADNESS;
1757 /* * Badness of floating conversion. */
1758 extern const struct rank FLOAT_CONVERSION_BADNESS;
1759 /* * Badness of integer<->floating conversions. */
1760 extern const struct rank INT_FLOAT_CONVERSION_BADNESS;
1761 /* * Badness of conversion of pointer to void pointer. */
1762 extern const struct rank VOID_PTR_CONVERSION_BADNESS;
1763 /* * Badness of conversion to boolean. */
1764 extern const struct rank BOOL_CONVERSION_BADNESS;
1765 /* * Badness of converting derived to base class. */
1766 extern const struct rank BASE_CONVERSION_BADNESS;
1767 /* * Badness of converting from non-reference to reference. */
1768 extern const struct rank REFERENCE_CONVERSION_BADNESS;
1769 /* * Badness of converting integer 0 to NULL pointer. */
1770 extern const struct rank NULL_POINTER_CONVERSION;
1771
1772 /* Non-standard conversions allowed by the debugger */
1773
1774 /* * Converting a pointer to an int is usually OK. */
1775 extern const struct rank NS_POINTER_CONVERSION_BADNESS;
1776
1777 /* * Badness of converting a (non-zero) integer constant
1778 to a pointer. */
1779 extern const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS;
1780
1781 extern struct rank sum_ranks (struct rank a, struct rank b);
1782 extern int compare_ranks (struct rank a, struct rank b);
1783
1784 extern int compare_badness (struct badness_vector *, struct badness_vector *);
1785
1786 extern struct badness_vector *rank_function (struct type **, int,
1787 struct value **, int);
1788
1789 extern struct rank rank_one_type (struct type *, struct type *,
1790 struct value *);
1791
1792 extern void recursive_dump_type (struct type *, int);
1793
1794 extern int field_is_static (struct field *);
1795
1796 /* printcmd.c */
1797
1798 extern void print_scalar_formatted (const void *, struct type *,
1799 const struct value_print_options *,
1800 int, struct ui_file *);
1801
1802 extern int can_dereference (struct type *);
1803
1804 extern int is_integral_type (struct type *);
1805
1806 extern int is_scalar_type_recursive (struct type *);
1807
1808 extern void maintenance_print_type (char *, int);
1809
1810 extern htab_t create_copied_types_hash (struct objfile *objfile);
1811
1812 extern struct type *copy_type_recursive (struct objfile *objfile,
1813 struct type *type,
1814 htab_t copied_types);
1815
1816 extern struct type *copy_type (const struct type *type);
1817
1818 extern int types_equal (struct type *, struct type *);
1819
1820 extern int types_deeply_equal (struct type *, struct type *);
1821
1822 #endif /* GDBTYPES_H */