2002-05-14 Daniel Jacobowitz <drow@mvista.com>
[deliverable/binutils-gdb.git] / gdb / gdbtypes.h
CommitLineData
c906108c 1/* Internal type definitions for GDB.
d7f0b9ce 2 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
b6ba6518 3 Free Software Foundation, Inc.
c906108c
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4 Contributed by Cygnus Support, using pieces from other GDB modules.
5
c5aa993b 6 This file is part of GDB.
c906108c 7
c5aa993b
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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.
c906108c 12
c5aa993b
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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.
c906108c 17
c5aa993b
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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. */
c906108c
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22
23#if !defined (GDBTYPES_H)
24#define GDBTYPES_H 1
25
7fc73f38
MK
26/* Forward declarations for prototypes. */
27struct block;
28
c906108c
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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
c5aa993b
JM
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 */
c906108c
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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
78enum type_code
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JM
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 };
c906108c
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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
aa468c60 145/* Some bits for the type's flags word, and macros to test them. */
c906108c
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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)
4c90d51b 151#define TYPE_UNSIGNED(t) (TYPE_FLAGS (t) & TYPE_FLAG_UNSIGNED)
c906108c
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152
153/* No sign for this type. In C++, "char", "signed char", and "unsigned
154 char" are distinct types; so we need an extra flag to indicate the
ba91526b 155 absence of a sign! */
c906108c
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156
157#define TYPE_FLAG_NOSIGN (1 << 1)
4c90d51b 158#define TYPE_NOSIGN(t) (TYPE_FLAGS (t) & TYPE_FLAG_NOSIGN)
c906108c
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159
160/* This appears in a type's flags word if it is a stub type (e.g., if
161 someone referenced a type that wasn't defined in a source file
162 via (struct sir_not_appearing_in_this_film *)). */
163
164#define TYPE_FLAG_STUB (1 << 2)
4c90d51b 165#define TYPE_STUB(t) (TYPE_FLAGS (t) & TYPE_FLAG_STUB)
c906108c
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166
167/* The target type of this type is a stub type, and this type needs to
168 be updated if it gets un-stubbed in check_typedef.
169 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
170 gets set based on the TYPE_LENGTH of the target type.
171 Also, set for TYPE_CODE_TYPEDEF. */
172
aa468c60 173#define TYPE_FLAG_TARGET_STUB (1 << 3)
4c90d51b 174#define TYPE_TARGET_STUB(t) (TYPE_FLAGS (t) & TYPE_FLAG_TARGET_STUB)
c906108c 175
7b83ea04 176/* Static type. If this is set, the corresponding type had
c906108c
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177 * a static modifier.
178 * Note: This may be unnecessary, since static data members
179 * are indicated by other means (bitpos == -1)
180 */
181
aa468c60 182#define TYPE_FLAG_STATIC (1 << 4)
4c90d51b 183#define TYPE_STATIC(t) (TYPE_FLAGS (t) & TYPE_FLAG_STATIC)
c906108c
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184
185/* Constant type. If this is set, the corresponding type has a
186 * const modifier.
187 */
188
aa468c60 189#define TYPE_FLAG_CONST (1 << 5)
2fdde8f8 190#define TYPE_CONST(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CONST)
c906108c
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191
192/* Volatile type. If this is set, the corresponding type has a
193 * volatile modifier.
194 */
195
aa468c60 196#define TYPE_FLAG_VOLATILE (1 << 6)
2fdde8f8 197#define TYPE_VOLATILE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_VOLATILE)
c906108c
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198
199
200/* This is a function type which appears to have a prototype. We need this
201 for function calls in order to tell us if it's necessary to coerce the args,
202 or to just do the standard conversions. This is used with a short field. */
203
aa468c60 204#define TYPE_FLAG_PROTOTYPED (1 << 7)
4c90d51b 205#define TYPE_PROTOTYPED(t) (TYPE_FLAGS (t) & TYPE_FLAG_PROTOTYPED)
c906108c
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206
207/* This flag is used to indicate that processing for this type
208 is incomplete.
c5aa993b 209
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210 (Mostly intended for HP platforms, where class methods, for
211 instance, can be encountered before their classes in the debug
212 info; the incomplete type has to be marked so that the class and
213 the method can be assigned correct types.) */
214
aa468c60 215#define TYPE_FLAG_INCOMPLETE (1 << 8)
4c90d51b 216#define TYPE_INCOMPLETE(t) (TYPE_FLAGS (t) & TYPE_FLAG_INCOMPLETE)
c906108c 217
47663de5
MS
218/* Instruction-space delimited type. This is for Harvard architectures
219 which have separate instruction and data address spaces (and perhaps
220 others).
221
222 GDB usually defines a flat address space that is a superset of the
223 architecture's two (or more) address spaces, but this is an extension
224 of the architecture's model.
225
226 If TYPE_FLAG_INST is set, an object of the corresponding type
227 resides in instruction memory, even if its address (in the extended
228 flat address space) does not reflect this.
229
230 Similarly, if TYPE_FLAG_DATA is set, then an object of the
231 corresponding type resides in the data memory space, even if
232 this is not indicated by its (flat address space) address.
233
234 If neither flag is set, the default space for functions / methods
235 is instruction space, and for data objects is data memory. */
236
aa468c60 237#define TYPE_FLAG_CODE_SPACE (1 << 9)
2fdde8f8 238#define TYPE_CODE_SPACE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_CODE_SPACE)
aa468c60
FF
239
240#define TYPE_FLAG_DATA_SPACE (1 << 10)
2fdde8f8 241#define TYPE_DATA_SPACE(t) (TYPE_INSTANCE_FLAGS (t) & TYPE_FLAG_DATA_SPACE)
47663de5 242
878ac530
FF
243/* FIXME: Kludge to mark a varargs function type for C++ member
244 function argument processing. Currently only used in dwarf2read.c,
245 but put it here so we won't accidentally overload the bit with
246 another flag. */
247
aa468c60 248#define TYPE_FLAG_VARARGS (1 << 11)
4c90d51b 249#define TYPE_VARARGS(t) (TYPE_FLAGS (t) & TYPE_FLAG_VARARGS)
c906108c 250
f5f8a009
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251/* Identify a vector type. Gcc is handling this by adding an extra
252 attribute to the array type. We slurp that in as a new flag of a
253 type. This is used only in dwarf2read.c. */
254#define TYPE_FLAG_VECTOR (1 << 12)
4c90d51b 255#define TYPE_VECTOR(t) (TYPE_FLAGS (t) & TYPE_FLAG_VECTOR)
f5f8a009 256
2fdde8f8
DJ
257struct main_type
258{
259 /* Code for kind of type */
260
261 enum type_code code;
262
263 /* Name of this type, or NULL if none.
264
265 This is used for printing only, except by poorly designed C++ code.
266 For looking up a name, look for a symbol in the VAR_NAMESPACE. */
267
268 char *name;
269
270 /* Tag name for this type, or NULL if none. This means that the
271 name of the type consists of a keyword followed by the tag name.
272 Which keyword is determined by the type code ("struct" for
273 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
274 with this feature.
275
276 This is used for printing only, except by poorly designed C++ code.
277 For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
278 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
279 the name to use to look for definitions in other files. */
280
281 char *tag_name;
282
283 /* Length of storage for a value of this type. This is what
284 sizeof(type) would return; use it for address arithmetic,
285 memory reads and writes, etc. This size includes padding. For
286 example, an i386 extended-precision floating point value really
287 only occupies ten bytes, but most ABI's declare its size to be
288 12 bytes, to preserve alignment. A `struct type' representing
289 such a floating-point type would have a `length' value of 12,
290 even though the last two bytes are unused.
291
292 There's a bit of a host/target mess here, if you're concerned
293 about machines whose bytes aren't eight bits long, or who don't
294 have byte-addressed memory. Various places pass this to memcpy
295 and such, meaning it must be in units of host bytes. Various
296 other places expect they can calculate addresses by adding it
297 and such, meaning it must be in units of target bytes. For
298 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
299 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
300
301 One fix would be to make this field in bits (requiring that it
302 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
303 the other choice would be to make it consistently in units of
304 HOST_CHAR_BIT. However, this would still fail to address
305 machines based on a ternary or decimal representation. */
306
307 unsigned length;
308
309 /* FIXME, these should probably be restricted to a Fortran-specific
310 field in some fashion. */
311#define BOUND_CANNOT_BE_DETERMINED 5
312#define BOUND_BY_REF_ON_STACK 4
313#define BOUND_BY_VALUE_ON_STACK 3
314#define BOUND_BY_REF_IN_REG 2
315#define BOUND_BY_VALUE_IN_REG 1
316#define BOUND_SIMPLE 0
317 int upper_bound_type;
318 int lower_bound_type;
319
320 /* Every type is now associated with a particular objfile, and the
321 type is allocated on the type_obstack for that objfile. One problem
322 however, is that there are times when gdb allocates new types while
323 it is not in the process of reading symbols from a particular objfile.
324 Fortunately, these happen when the type being created is a derived
325 type of an existing type, such as in lookup_pointer_type(). So
326 we can just allocate the new type using the same objfile as the
327 existing type, but to do this we need a backpointer to the objfile
328 from the existing type. Yes this is somewhat ugly, but without
329 major overhaul of the internal type system, it can't be avoided
330 for now. */
331
332 struct objfile *objfile;
333
334 /* For a pointer type, describes the type of object pointed to.
335 For an array type, describes the type of the elements.
336 For a function or method type, describes the type of the return value.
337 For a range type, describes the type of the full range.
338 For a complex type, describes the type of each coordinate.
339 Unused otherwise. */
340
341 struct type *target_type;
342
343 /* Flags about this type. */
344
345 int flags;
346
347 /* Number of fields described for this type */
348
349 short nfields;
350
351 /* For structure and union types, a description of each field.
352 For set and pascal array types, there is one "field",
353 whose type is the domain type of the set or array.
354 For range types, there are two "fields",
355 the minimum and maximum values (both inclusive).
356 For enum types, each possible value is described by one "field".
357 For a function type, a "field" for each parameter type.
358 For C++ classes, there is one field for each base class (if it is
359 a derived class) plus one field for each class data member. Member
360 functions are recorded elsewhere.
361
362 Using a pointer to a separate array of fields
363 allows all types to have the same size, which is useful
364 because we can allocate the space for a type before
365 we know what to put in it. */
366
367 struct field
c5aa993b 368 {
2fdde8f8
DJ
369 union field_location
370 {
371 /* Position of this field, counting in bits from start of
372 containing structure.
373 For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
374 For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
375 For a range bound or enum value, this is the value itself. */
c906108c 376
2fdde8f8 377 int bitpos;
c906108c 378
2fdde8f8
DJ
379 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
380 is the location (in the target) of the static field.
381 Otherwise, physname is the mangled label of the static field. */
c906108c 382
2fdde8f8
DJ
383 CORE_ADDR physaddr;
384 char *physname;
c906108c 385
2fdde8f8
DJ
386 /* For a function type, this is 1 if the argument is marked
387 artificial. Artificial arguments should not be shown to the
388 user. */
389 int artificial;
390 }
391 loc;
c906108c 392
2fdde8f8
DJ
393 /* Size of this field, in bits, or zero if not packed.
394 For an unpacked field, the field's type's length
395 says how many bytes the field occupies.
396 A value of -1 or -2 indicates a static field; -1 means the location
397 is specified by the label loc.physname; -2 means that loc.physaddr
398 specifies the actual address. */
c906108c 399
2fdde8f8 400 int bitsize;
c906108c 401
2fdde8f8
DJ
402 /* In a struct or union type, type of this field.
403 In a function type, type of this argument.
404 In an array type, the domain-type of the array. */
c906108c 405
2fdde8f8 406 struct type *type;
c906108c 407
2fdde8f8
DJ
408 /* Name of field, value or argument.
409 NULL for range bounds and array domains. */
8176bb6d 410
2fdde8f8 411 char *name;
c906108c 412
2fdde8f8 413 } *fields;
c906108c 414
2fdde8f8
DJ
415 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
416 is the base class which defined the virtual function table pointer.
c906108c 417
2fdde8f8
DJ
418 For types that are pointer to member types (TYPE_CODE_MEMBER),
419 VPTR_BASETYPE is the type that this pointer is a member of.
c906108c 420
2fdde8f8
DJ
421 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
422 type that contains the method.
c906108c 423
2fdde8f8 424 Unused otherwise. */
c906108c 425
2fdde8f8 426 struct type *vptr_basetype;
c906108c 427
2fdde8f8
DJ
428 /* Field number of the virtual function table pointer in
429 VPTR_BASETYPE. If -1, we were unable to find the virtual
430 function table pointer in initial symbol reading, and
431 fill_in_vptr_fieldno should be called to find it if possible.
c906108c 432
2fdde8f8 433 Unused if this type does not have virtual functions. */
c906108c 434
2fdde8f8 435 int vptr_fieldno;
c906108c 436
2fdde8f8 437 /* Slot to point to additional language-specific fields of this type. */
c906108c 438
2fdde8f8
DJ
439 union type_specific
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. */
c906108c 446
2fdde8f8 447 struct type **arg_types;
c906108c 448
2fdde8f8
DJ
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. */
c906108c 452
2fdde8f8 453 struct cplus_struct_type *cplus_stuff;
c906108c 454
2fdde8f8
DJ
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. */
c906108c 458
2fdde8f8
DJ
459 const struct floatformat *floatformat;
460 } type_specific;
461};
c906108c 462
2fdde8f8
DJ
463/* A ``struct type'' describes a particular instance of a type, with
464 some particular qualification. */
465struct type
466{
467 /* Type that is a pointer to this type.
468 NULL if no such pointer-to type is known yet.
469 The debugger may add the address of such a type
470 if it has to construct one later. */
c906108c 471
2fdde8f8 472 struct type *pointer_type;
c906108c 473
2fdde8f8 474 /* C++: also need a reference type. */
c906108c 475
2fdde8f8 476 struct type *reference_type;
c906108c 477
2fdde8f8
DJ
478 /* Variant chain. This points to a type that differs from this one only
479 in qualifiers. Currently, the possible qualifiers are const, volatile,
480 code-space, and data-space. The variants are linked in a circular
481 ring and share MAIN_TYPE. */
482 struct type *chain;
c906108c 483
2fdde8f8
DJ
484 /* Flags specific to this instance of the type, indicating where
485 on the ring we are. */
486 int instance_flags;
701c159d 487
2fdde8f8
DJ
488 /* Core type, shared by a group of qualified types. */
489 struct main_type *main_type;
490};
c906108c
SS
491
492#define NULL_TYPE ((struct type *) 0)
493
494/* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
495 nodes. */
496
497struct cplus_struct_type
c5aa993b
JM
498 {
499 /* Number of base classes this type derives from. The baseclasses are
500 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
501 the struct type). I think only the `type' field of such a field has
502 any meaning. */
c906108c 503
c5aa993b 504 short n_baseclasses;
c906108c 505
c5aa993b
JM
506 /* Number of methods with unique names. All overloaded methods with
507 the same name count only once. */
c906108c 508
c5aa993b 509 short nfn_fields;
c906108c 510
c5aa993b
JM
511 /* Number of methods described for this type, not including the
512 methods that it derives from. */
c906108c 513
c5aa993b 514 short nfn_fields_total;
c906108c 515
c5aa993b
JM
516 /* The "declared_type" field contains a code saying how the
517 user really declared this type, e.g., "class s", "union s",
518 "struct s".
7b83ea04 519 The 3 above things come out from the C++ compiler looking like classes,
c5aa993b
JM
520 but we keep track of the real declaration so we can give
521 the correct information on "ptype". (Note: TEMPLATE may not
522 belong in this list...) */
c906108c
SS
523
524#define DECLARED_TYPE_CLASS 0
525#define DECLARED_TYPE_UNION 1
526#define DECLARED_TYPE_STRUCT 2
527#define DECLARED_TYPE_TEMPLATE 3
c5aa993b
JM
528 short declared_type; /* One of the above codes */
529
530 /* For derived classes, the number of base classes is given by n_baseclasses
531 and virtual_field_bits is a bit vector containing one bit per base class.
532 If the base class is virtual, the corresponding bit will be set.
533 I.E, given:
c906108c 534
c5aa993b
JM
535 class A{};
536 class B{};
537 class C : public B, public virtual A {};
c906108c 538
c5aa993b
JM
539 B is a baseclass of C; A is a virtual baseclass for C.
540 This is a C++ 2.0 language feature. */
c906108c 541
c5aa993b 542 B_TYPE *virtual_field_bits;
c906108c 543
c5aa993b
JM
544 /* For classes with private fields, the number of fields is given by
545 nfields and private_field_bits is a bit vector containing one bit
546 per field.
547 If the field is private, the corresponding bit will be set. */
c906108c 548
c5aa993b 549 B_TYPE *private_field_bits;
c906108c 550
c5aa993b
JM
551 /* For classes with protected fields, the number of fields is given by
552 nfields and protected_field_bits is a bit vector containing one bit
553 per field.
554 If the field is private, the corresponding bit will be set. */
c906108c 555
c5aa993b 556 B_TYPE *protected_field_bits;
c906108c 557
c5aa993b
JM
558 /* for classes with fields to be ignored, either this is optimized out
559 or this field has length 0 */
c906108c 560
c5aa993b 561 B_TYPE *ignore_field_bits;
c906108c 562
c5aa993b
JM
563 /* For classes, structures, and unions, a description of each field,
564 which consists of an overloaded name, followed by the types of
565 arguments that the method expects, and then the name after it
566 has been renamed to make it distinct.
c906108c 567
c5aa993b 568 fn_fieldlists points to an array of nfn_fields of these. */
c906108c 569
c5aa993b
JM
570 struct fn_fieldlist
571 {
c906108c 572
c5aa993b 573 /* The overloaded name. */
c906108c 574
c5aa993b 575 char *name;
c906108c 576
c5aa993b 577 /* The number of methods with this name. */
c906108c 578
c5aa993b 579 int length;
c906108c 580
c5aa993b 581 /* The list of methods. */
c906108c 582
c5aa993b
JM
583 struct fn_field
584 {
c906108c 585
c5aa993b
JM
586 /* If is_stub is clear, this is the mangled name which we can
587 look up to find the address of the method (FIXME: it would
588 be cleaner to have a pointer to the struct symbol here
589 instead). */
c906108c 590
c5aa993b
JM
591 /* If is_stub is set, this is the portion of the mangled
592 name which specifies the arguments. For example, "ii",
593 if there are two int arguments, or "" if there are no
594 arguments. See gdb_mangle_name for the conversion from this
595 format to the one used if is_stub is clear. */
c906108c 596
c5aa993b 597 char *physname;
c906108c 598
c5aa993b
JM
599 /* The function type for the method.
600 (This comment used to say "The return value of the method",
7b83ea04 601 but that's wrong. The function type
c5aa993b
JM
602 is expected here, i.e. something with TYPE_CODE_FUNC,
603 and *not* the return-value type). */
c906108c 604
c5aa993b 605 struct type *type;
c906108c 606
c5aa993b
JM
607 /* The argument list. Only valid if is_stub is clear. Contains
608 the type of each argument, including `this', and ending with
609 a NULL pointer after the last argument. Should not contain
610 a `this' pointer for static member functions. */
c906108c 611
c5aa993b 612 struct type **args;
c906108c 613
c5aa993b
JM
614 /* For virtual functions.
615 First baseclass that defines this virtual function. */
c906108c 616
c5aa993b 617 struct type *fcontext;
c906108c 618
c5aa993b 619 /* Attributes. */
c906108c 620
c5aa993b
JM
621 unsigned int is_const:1;
622 unsigned int is_volatile:1;
623 unsigned int is_private:1;
624 unsigned int is_protected:1;
625 unsigned int is_public:1;
626 unsigned int is_abstract:1;
627 unsigned int is_static:1;
628 unsigned int is_final:1;
629 unsigned int is_synchronized:1;
630 unsigned int is_native:1;
b02dede2 631 unsigned int is_artificial:1;
c906108c 632
c5aa993b
JM
633 /* A stub method only has some fields valid (but they are enough
634 to reconstruct the rest of the fields). */
635 unsigned int is_stub:1;
c906108c 636
c5aa993b
JM
637 /* C++ method that is inlined */
638 unsigned int is_inlined:1;
c906108c 639
c5aa993b 640 /* Unused. */
b02dede2 641 unsigned int dummy:3;
c906108c 642
c5aa993b
JM
643 /* Index into that baseclass's virtual function table,
644 minus 2; else if static: VOFFSET_STATIC; else: 0. */
c906108c 645
c5aa993b 646 unsigned int voffset:16;
c906108c 647
c5aa993b 648#define VOFFSET_STATIC 1
c906108c 649
c5aa993b
JM
650 }
651 *fn_fields;
c906108c 652
c5aa993b
JM
653 }
654 *fn_fieldlists;
c906108c 655
7b83ea04 656 /* If this "struct type" describes a template, then it
c906108c
SS
657 * has arguments. "template_args" points to an array of
658 * template arg descriptors, of length "ntemplate_args".
659 * The only real information in each of these template arg descriptors
660 * is a name. "type" will typically just point to a "struct type" with
661 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
662 */
663 short ntemplate_args;
664 struct template_arg
c5aa993b
JM
665 {
666 char *name;
667 struct type *type;
668 }
669 *template_args;
c906108c
SS
670
671 /* If this "struct type" describes a template, it has a list
672 * of instantiations. "instantiations" is a pointer to an array
673 * of type's, one representing each instantiation. There
674 * are "ninstantiations" elements in this array.
675 */
676 short ninstantiations;
677 struct type **instantiations;
678
679 /* The following points to information relevant to the runtime model
680 * of the compiler.
681 * Currently being used only for HP's ANSI C++ compiler.
682 * (This type may have to be changed/enhanced for other compilers.)
683 *
684 * RUNTIME_PTR is NULL if there is no runtime information (currently
685 * this means the type was not compiled by HP aCC).
686 *
687 * Fields in structure pointed to:
688 * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
7b83ea04 689 *
c906108c
SS
690 * ->PRIMARY_BASE points to the first non-virtual base class that has
691 * a virtual table.
692 *
693 * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
694 * point to the type information for all virtual bases among this type's
695 * ancestors.
696 */
c5aa993b
JM
697 struct runtime_info
698 {
699 short has_vtable;
700 struct type *primary_base;
701 struct type **virtual_base_list;
702 }
703 *runtime_ptr;
c906108c
SS
704
705 /* Pointer to information about enclosing scope, if this is a
706 * local type. If it is not a local type, this is NULL
707 */
c5aa993b
JM
708 struct local_type_info
709 {
710 char *file;
711 int line;
712 }
713 *localtype_ptr;
714 };
c906108c
SS
715
716/* Struct used in computing virtual base list */
717struct vbase
c5aa993b
JM
718 {
719 struct type *vbasetype; /* pointer to virtual base */
720 struct vbase *next; /* next in chain */
721 };
c906108c
SS
722
723/* Struct used for ranking a function for overload resolution */
c5aa993b
JM
724struct badness_vector
725 {
726 int length;
727 int *rank;
728 };
c906108c
SS
729
730/* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
731 this shared static structure. */
732
733extern const struct cplus_struct_type cplus_struct_default;
734
a14ed312 735extern void allocate_cplus_struct_type (struct type *);
c906108c
SS
736
737#define INIT_CPLUS_SPECIFIC(type) \
738 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
739#define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
740#define HAVE_CPLUS_STRUCT(type) \
741 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
742
2fdde8f8
DJ
743#define TYPE_INSTANCE_FLAGS(thistype) (thistype)->instance_flags
744#define TYPE_MAIN_TYPE(thistype) (thistype)->main_type
745#define TYPE_NAME(thistype) TYPE_MAIN_TYPE(thistype)->name
746#define TYPE_TAG_NAME(type) TYPE_MAIN_TYPE(type)->tag_name
747#define TYPE_TARGET_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->target_type
c906108c
SS
748#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
749#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
2fdde8f8 750#define TYPE_CHAIN(thistype) (thistype)->chain
c906108c
SS
751/* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
752 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
753 so you only have to call check_typedef once. Since allocate_value
754 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
2fdde8f8
DJ
755#define TYPE_LENGTH(thistype) TYPE_MAIN_TYPE(thistype)->length
756#define TYPE_OBJFILE(thistype) TYPE_MAIN_TYPE(thistype)->objfile
757#define TYPE_FLAGS(thistype) TYPE_MAIN_TYPE(thistype)->flags
aa468c60 758/* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
c906108c 759 type, you need to do TYPE_CODE (check_type (this_type)). */
2fdde8f8
DJ
760#define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code
761#define TYPE_NFIELDS(thistype) TYPE_MAIN_TYPE(thistype)->nfields
762#define TYPE_FIELDS(thistype) TYPE_MAIN_TYPE(thistype)->fields
c906108c
SS
763#define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
764#define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
765
766#define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
767#define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
768#define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
769
770/* Moto-specific stuff for FORTRAN arrays */
771
2fdde8f8
DJ
772#define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) \
773 TYPE_MAIN_TYPE(thistype)->upper_bound_type
774#define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) \
775 TYPE_MAIN_TYPE(thistype)->lower_bound_type
c906108c
SS
776
777#define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
778 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
779
780#define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
781 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
782
783/* C++ */
784
2fdde8f8
DJ
785#define TYPE_VPTR_BASETYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
786#define TYPE_DOMAIN_TYPE(thistype) TYPE_MAIN_TYPE(thistype)->vptr_basetype
787#define TYPE_VPTR_FIELDNO(thistype) TYPE_MAIN_TYPE(thistype)->vptr_fieldno
c906108c
SS
788#define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
789#define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
790#define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
791#define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
792#define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
793#define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
2fdde8f8
DJ
794#define TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
795#define TYPE_ARG_TYPES(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.arg_types
796#define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
797#define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
798#define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type
c906108c 799#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
2fdde8f8 800#define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name
c906108c
SS
801#define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
802#define BASETYPE_VIA_PUBLIC(thistype, index) \
803 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
804
805#define BASETYPE_VIA_VIRTUAL(thistype, index) \
806 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
807 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
808
809#define FIELD_TYPE(thisfld) ((thisfld).type)
810#define FIELD_NAME(thisfld) ((thisfld).name)
811#define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
8176bb6d 812#define FIELD_ARTIFICIAL(thisfld) ((thisfld).loc.artificial)
c906108c
SS
813#define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
814#define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
815#define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
816#define SET_FIELD_PHYSNAME(thisfld, name) \
817 ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
818#define SET_FIELD_PHYSADDR(thisfld, name) \
819 ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
2fdde8f8 820#define TYPE_FIELD(thistype, n) TYPE_MAIN_TYPE(thistype)->fields[n]
c906108c
SS
821#define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
822#define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
823#define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
8176bb6d 824#define TYPE_FIELD_ARTIFICIAL(thistype, n) FIELD_ARTIFICIAL(TYPE_FIELD(thistype,n))
c906108c
SS
825#define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
826#define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
827#define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
828#define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
829
830#define TYPE_FIELD_PRIVATE_BITS(thistype) \
831 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
832#define TYPE_FIELD_PROTECTED_BITS(thistype) \
833 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
834#define TYPE_FIELD_IGNORE_BITS(thistype) \
835 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
836#define TYPE_FIELD_VIRTUAL_BITS(thistype) \
837 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
838#define SET_TYPE_FIELD_PRIVATE(thistype, n) \
839 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
840#define SET_TYPE_FIELD_PROTECTED(thistype, n) \
841 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
842#define SET_TYPE_FIELD_IGNORE(thistype, n) \
843 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
844#define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
845 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
846#define TYPE_FIELD_PRIVATE(thistype, n) \
847 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
848 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
849#define TYPE_FIELD_PROTECTED(thistype, n) \
850 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
851 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
852#define TYPE_FIELD_IGNORE(thistype, n) \
853 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
854 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
855#define TYPE_FIELD_VIRTUAL(thistype, n) \
856 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
857 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
858
2fdde8f8
DJ
859#define TYPE_FIELD_STATIC(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].bitsize < 0)
860#define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) (TYPE_MAIN_TYPE (thistype)->fields[n].bitsize == -2)
c906108c
SS
861#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
862#define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
863
864#define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
865#define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
866#define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
867#define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
868#define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
869
870#define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
871#define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
872#define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
873#define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
874#define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
875#define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
876#define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
877#define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
878#define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
879#define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
880#define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
881#define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
882#define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
b02dede2 883#define TYPE_FN_FIELD_ARTIFICIAL(thisfn, n) ((thisfn)[n].is_artificial)
c906108c
SS
884#define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
885#define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
886#define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
887#define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
888#define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
889#define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
890#define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
891
892#define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
893#define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
894#define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
895#define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
896#define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
c5aa993b 897
c906108c
SS
898#define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
899#define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
900#define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
c5aa993b 901
c906108c 902#define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
7b83ea04
AC
903 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
904 (TYPE_NFIELDS (thistype) == 0) && \
905 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
c5aa993b
JM
906
907
908
c906108c
SS
909/* Implicit sizes */
910extern struct type *builtin_type_void;
911extern struct type *builtin_type_char;
912extern struct type *builtin_type_short;
913extern struct type *builtin_type_int;
914extern struct type *builtin_type_long;
915extern struct type *builtin_type_signed_char;
916extern struct type *builtin_type_unsigned_char;
917extern struct type *builtin_type_unsigned_short;
918extern struct type *builtin_type_unsigned_int;
919extern struct type *builtin_type_unsigned_long;
920extern struct type *builtin_type_float;
921extern struct type *builtin_type_double;
922extern struct type *builtin_type_long_double;
923extern struct type *builtin_type_complex;
924extern struct type *builtin_type_double_complex;
925extern struct type *builtin_type_string;
926extern struct type *builtin_type_bool;
927
c4093a6a 928/* Address/pointer types: */
090a2205
AC
929/* (C) Language `pointer to data' type. Some target platforms use an
930 implicitly {sign,zero} -extended 32 bit C language pointer on a 64
931 bit ISA. */
932extern struct type *builtin_type_void_data_ptr;
ee3a7b7f
JB
933
934/* (C) Language `pointer to function returning void' type. Since
935 ANSI, C standards have explicitly said that pointers to functions
936 and pointers to data are not interconvertible --- that is, you
937 can't cast a function pointer to void * and back, and expect to get
938 the same value. However, all function pointer types are
939 interconvertible, so void (*) () can server as a generic function
940 pointer. */
941extern struct type *builtin_type_void_func_ptr;
942
c4093a6a
JM
943/* The target CPU's address type. This is the ISA address size. */
944extern struct type *builtin_type_CORE_ADDR;
945/* The symbol table address type. Some object file formats have a 32
946 bit address type even though the TARGET has a 64 bit pointer type
947 (cf MIPS). */
948extern struct type *builtin_type_bfd_vma;
949
950/* Explicit sizes - see C9X <intypes.h> for naming scheme */
c906108c
SS
951extern struct type *builtin_type_int8;
952extern struct type *builtin_type_uint8;
953extern struct type *builtin_type_int16;
954extern struct type *builtin_type_uint16;
955extern struct type *builtin_type_int32;
956extern struct type *builtin_type_uint32;
957extern struct type *builtin_type_int64;
958extern struct type *builtin_type_uint64;
8b982acf
EZ
959extern struct type *builtin_type_int128;
960extern struct type *builtin_type_uint128;
c2d11a7d
JM
961
962/* SIMD types. We inherit these names from GCC. */
917317f4 963extern struct type *builtin_type_v4sf;
c2d11a7d 964extern struct type *builtin_type_v4si;
08cf96df 965extern struct type *builtin_type_v16qi;
c2d11a7d 966extern struct type *builtin_type_v8qi;
08cf96df 967extern struct type *builtin_type_v8hi;
c2d11a7d
JM
968extern struct type *builtin_type_v4hi;
969extern struct type *builtin_type_v2si;
c906108c 970
08cf96df
EZ
971/* Type for 128 bit vectors. */
972extern struct type *builtin_type_vec128;
973
598f52df
AC
974/* Explicit floating-point formats. See "floatformat.h". */
975extern struct type *builtin_type_ieee_single_big;
976extern struct type *builtin_type_ieee_single_little;
977extern struct type *builtin_type_ieee_double_big;
978extern struct type *builtin_type_ieee_double_little;
979extern struct type *builtin_type_ieee_double_littlebyte_bigword;
980extern struct type *builtin_type_i387_ext;
981extern struct type *builtin_type_m68881_ext;
982extern struct type *builtin_type_i960_ext;
983extern struct type *builtin_type_m88110_ext;
984extern struct type *builtin_type_m88110_harris_ext;
985extern struct type *builtin_type_arm_ext_big;
986extern struct type *builtin_type_arm_ext_littlebyte_bigword;
987extern struct type *builtin_type_ia64_spill_big;
988extern struct type *builtin_type_ia64_spill_little;
989extern struct type *builtin_type_ia64_quad_big;
990extern struct type *builtin_type_ia64_quad_little;
991
9e0b60a8
JM
992/* We use this for the '/c' print format, because builtin_type_char is
993 just a one-byte integral type, which languages less laid back than
994 C will print as ... well, a one-byte integral type. */
995extern struct type *builtin_type_true_char;
996
c906108c
SS
997/* This type represents a type that was unrecognized in symbol
998 read-in. */
999
1000extern struct type *builtin_type_error;
1001
1002extern struct type *builtin_type_long_long;
1003extern struct type *builtin_type_unsigned_long_long;
1004
1005/* Modula-2 types */
1006
1007extern struct type *builtin_type_m2_char;
1008extern struct type *builtin_type_m2_int;
1009extern struct type *builtin_type_m2_card;
1010extern struct type *builtin_type_m2_real;
1011extern struct type *builtin_type_m2_bool;
1012
1013/* Chill types */
1014
1015extern struct type *builtin_type_chill_bool;
1016extern struct type *builtin_type_chill_char;
1017extern struct type *builtin_type_chill_long;
1018extern struct type *builtin_type_chill_ulong;
1019extern struct type *builtin_type_chill_real;
1020
1021/* Fortran (F77) types */
1022
1023extern struct type *builtin_type_f_character;
1024extern struct type *builtin_type_f_integer;
ba41d549 1025extern struct type *builtin_type_f_integer_s2;
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1026extern struct type *builtin_type_f_logical;
1027extern struct type *builtin_type_f_logical_s1;
1028extern struct type *builtin_type_f_logical_s2;
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1029extern struct type *builtin_type_f_real;
1030extern struct type *builtin_type_f_real_s8;
1031extern struct type *builtin_type_f_real_s16;
1032extern struct type *builtin_type_f_complex_s8;
1033extern struct type *builtin_type_f_complex_s16;
1034extern struct type *builtin_type_f_complex_s32;
1035extern struct type *builtin_type_f_void;
1036
1037/* RTTI for C++ */
c5aa993b 1038/* extern struct type *builtin_type_cxx_typeinfo; */
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1039
1040/* Maximum and minimum values of built-in types */
1041
1042#define MAX_OF_TYPE(t) \
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1043 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1044 : MAX_OF_SIZE(TYPE_LENGTH(t)))
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1045
1046#define MIN_OF_TYPE(t) \
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1047 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1048 : MIN_OF_SIZE(TYPE_LENGTH(t)))
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1049
1050/* Allocate space for storing data associated with a particular type.
1051 We ensure that the space is allocated using the same mechanism that
1052 was used to allocate the space for the type structure itself. I.E.
1053 if the type is on an objfile's type_obstack, then the space for data
1054 associated with that type will also be allocated on the type_obstack.
1055 If the type is not associated with any particular objfile (such as
1056 builtin types), then the data space will be allocated with xmalloc,
1057 the same as for the type structure. */
1058
1059#define TYPE_ALLOC(t,size) \
1060 (TYPE_OBJFILE (t) != NULL \
1061 ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
1062 : xmalloc (size))
1063
a14ed312 1064extern struct type *alloc_type (struct objfile *);
c906108c 1065
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1066extern struct type *init_type (enum type_code, int, int, char *,
1067 struct objfile *);
c906108c 1068
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1069/* Helper functions to construct a struct or record type. An
1070 initially empty type is created using init_composite_type().
1071 Fields are then added using append_struct_type_field(). A union
1072 type has its size set to the largest field. A struct type has each
1073 field packed against the previous. */
1074
1075extern struct type *init_composite_type (char *name, enum type_code code);
1076extern void append_composite_type_field (struct type *t, char *name,
1077 struct type *field);
1078
a14ed312 1079extern struct type *lookup_reference_type (struct type *);
c906108c 1080
a14ed312 1081extern struct type *make_reference_type (struct type *, struct type **);
c906108c 1082
a14ed312 1083extern struct type *make_cv_type (int, int, struct type *, struct type **);
c906108c 1084
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1085extern void replace_type (struct type *, struct type *);
1086
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1087extern int address_space_name_to_int (char *);
1088
1089extern char *address_space_int_to_name (int);
1090
1091extern struct type *make_type_with_address_space (struct type *type,
1092 int space_identifier);
1093
a14ed312 1094extern struct type *lookup_member_type (struct type *, struct type *);
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1095
1096extern void
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1097smash_to_method_type (struct type *, struct type *, struct type *,
1098 struct type **);
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1099
1100extern void
a14ed312 1101smash_to_member_type (struct type *, struct type *, struct type *);
c906108c 1102
a14ed312 1103extern struct type *allocate_stub_method (struct type *);
c906108c 1104
a14ed312 1105extern char *type_name_no_tag (const struct type *);
c906108c 1106
a14ed312 1107extern struct type *lookup_struct_elt_type (struct type *, char *, int);
c906108c 1108
a14ed312 1109extern struct type *make_pointer_type (struct type *, struct type **);
c906108c 1110
a14ed312 1111extern struct type *lookup_pointer_type (struct type *);
c906108c 1112
a14ed312 1113extern struct type *make_function_type (struct type *, struct type **);
c906108c 1114
a14ed312 1115extern struct type *lookup_function_type (struct type *);
c906108c 1116
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1117extern struct type *create_range_type (struct type *, struct type *, int,
1118 int);
c906108c 1119
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1120extern struct type *create_array_type (struct type *, struct type *,
1121 struct type *);
c906108c 1122
a14ed312 1123extern struct type *create_string_type (struct type *, struct type *);
c906108c 1124
a14ed312 1125extern struct type *create_set_type (struct type *, struct type *);
c906108c 1126
a14ed312 1127extern int chill_varying_type (struct type *);
c906108c 1128
a14ed312 1129extern struct type *lookup_unsigned_typename (char *);
c906108c 1130
a14ed312 1131extern struct type *lookup_signed_typename (char *);
c906108c 1132
a14ed312 1133extern struct type *check_typedef (struct type *);
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1134
1135#define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1136
a14ed312 1137extern void check_stub_method (struct type *, int, int);
c906108c 1138
a14ed312 1139extern struct type *lookup_primitive_typename (char *);
c906108c 1140
a14ed312 1141extern char *gdb_mangle_name (struct type *, int, int);
c906108c 1142
a14ed312 1143extern struct type *builtin_type (char **);
c906108c 1144
a14ed312 1145extern struct type *lookup_typename (char *, struct block *, int);
c906108c 1146
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1147extern struct type *lookup_template_type (char *, struct type *,
1148 struct block *);
c906108c 1149
a14ed312 1150extern struct type *lookup_fundamental_type (struct objfile *, int);
c906108c 1151
a14ed312 1152extern void fill_in_vptr_fieldno (struct type *);
c906108c 1153
a14ed312 1154extern int get_destructor_fn_field (struct type *, int *, int *);
c906108c 1155
a14ed312 1156extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
c906108c 1157
a14ed312 1158extern int is_ancestor (struct type *, struct type *);
c906108c 1159
a14ed312 1160extern int has_vtable (struct type *);
c906108c 1161
a14ed312 1162extern struct type *primary_base_class (struct type *);
c906108c 1163
a14ed312 1164extern struct type **virtual_base_list (struct type *);
c906108c 1165
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1166extern int virtual_base_list_length (struct type *);
1167extern int virtual_base_list_length_skip_primaries (struct type *);
c906108c 1168
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1169extern int virtual_base_index (struct type *, struct type *);
1170extern int virtual_base_index_skip_primaries (struct type *, struct type *);
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1171
1172
a14ed312 1173extern int class_index_in_primary_list (struct type *);
c906108c 1174
a14ed312 1175extern int count_virtual_fns (struct type *);
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1176
1177/* Constants for HP/Taligent ANSI C++ runtime model */
1178
1179/* Where virtual function entries begin in the
1180 * virtual table, in the non-RRBC vtable format.
1181 * First 4 are the metavtable pointer, top offset,
1182 * typeinfo pointer, and dup base info pointer */
1183#define HP_ACC_VFUNC_START 4
1184
7b83ea04 1185/* (Negative) Offset where virtual base offset entries begin
c906108c 1186 * in the virtual table. Skips over metavtable pointer and
7b83ea04 1187 * the self-offset entry.
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1188 * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1189 * appear before the address point of the vtable (the slot
1190 * pointed to by the object's vtable pointer), i.e. at lower
1191 * addresses than the vtable pointer. */
1192#define HP_ACC_VBASE_START 2
1193
1194/* (Positive) Offset where the pointer to the typeinfo
1195 * object is present in the virtual table */
1196#define HP_ACC_TYPEINFO_OFFSET 2
1197
1198/* (Positive) Offset where the ``top offset'' entry of
1199 * the virtual table is */
1200#define HP_ACC_TOP_OFFSET_OFFSET 1
1201
1202/* Overload resolution */
1203
1204#define LENGTH_MATCH(bv) ((bv)->rank[0])
1205
c5aa993b 1206/* Badness if parameter list length doesn't match arg list length */
c906108c 1207#define LENGTH_MISMATCH_BADNESS 100
c5aa993b 1208/* Dummy badness value for nonexistent parameter positions */
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1209#define TOO_FEW_PARAMS_BADNESS 100
1210/* Badness if no conversion among types */
1211#define INCOMPATIBLE_TYPE_BADNESS 100
1212/* Badness of coercing large integer to smaller size */
1213#define INTEGER_COERCION_BADNESS 100
1214/* Badness of coercing large floating type to smaller size */
1215#define FLOAT_COERCION_BADNESS 100
1216
1217/* Badness of integral promotion */
1218#define INTEGER_PROMOTION_BADNESS 1
1219/* Badness of floating promotion */
1220#define FLOAT_PROMOTION_BADNESS 1
1221/* Badness of integral conversion */
1222#define INTEGER_CONVERSION_BADNESS 2
1223/* Badness of floating conversion */
1224#define FLOAT_CONVERSION_BADNESS 2
1225/* Badness of integer<->floating conversions */
1226#define INT_FLOAT_CONVERSION_BADNESS 2
1227/* Badness of converting to a boolean */
1228#define BOOLEAN_CONVERSION_BADNESS 2
1229/* Badness of pointer conversion */
1230#define POINTER_CONVERSION_BADNESS 2
1231/* Badness of conversion of pointer to void pointer */
1232#define VOID_PTR_CONVERSION_BADNESS 2
db577aea 1233/* Badness of converting derived to base class */
c906108c 1234#define BASE_CONVERSION_BADNESS 2
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1235/* Badness of converting from non-reference to reference */
1236#define REFERENCE_CONVERSION_BADNESS 2
7b83ea04 1237
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1238/* Non-standard conversions allowed by the debugger */
1239/* Converting a pointer to an int is usually OK */
1240#define NS_POINTER_CONVERSION_BADNESS 10
1241
1242
a14ed312 1243extern int compare_badness (struct badness_vector *, struct badness_vector *);
c906108c 1244
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1245extern struct badness_vector *rank_function (struct type **, int,
1246 struct type **, int);
c906108c 1247
a14ed312 1248extern int rank_one_type (struct type *, struct type *);
c906108c 1249
a14ed312 1250extern void recursive_dump_type (struct type *, int);
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1251
1252/* printcmd.c */
1253
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JM
1254extern void print_scalar_formatted (char *, struct type *, int, int,
1255 struct ui_file *);
c906108c 1256
a14ed312 1257extern int can_dereference (struct type *);
c906108c 1258
a14ed312 1259extern int is_integral_type (struct type *);
adf40b2e 1260
a14ed312 1261extern void maintenance_print_type (char *, int);
c906108c 1262
c5aa993b 1263#endif /* GDBTYPES_H */
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