Approved by Jim Blandy:
[deliverable/binutils-gdb.git] / gdb / gdbtypes.h
CommitLineData
c906108c 1/* Internal type definitions for GDB.
b6ba6518
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2 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
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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
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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
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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
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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
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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
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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 */
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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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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 };
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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
145/* Some bits for the type's flags word. */
146
147/* Unsigned integer type. If this is not set for a TYPE_CODE_INT, the
148 type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
149
150#define TYPE_FLAG_UNSIGNED (1 << 0)
151
152/* No sign for this type. In C++, "char", "signed char", and "unsigned
153 char" are distinct types; so we need an extra flag to indicate the
ba91526b 154 absence of a sign! */
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155
156#define TYPE_FLAG_NOSIGN (1 << 1)
157
158/* This appears in a type's flags word if it is a stub type (e.g., if
159 someone referenced a type that wasn't defined in a source file
160 via (struct sir_not_appearing_in_this_film *)). */
161
162#define TYPE_FLAG_STUB (1 << 2)
163
164/* The target type of this type is a stub type, and this type needs to
165 be updated if it gets un-stubbed in check_typedef.
166 Used for arrays and ranges, in which TYPE_LENGTH of the array/range
167 gets set based on the TYPE_LENGTH of the target type.
168 Also, set for TYPE_CODE_TYPEDEF. */
169
170#define TYPE_FLAG_TARGET_STUB (1 << 3)
171
7b83ea04 172/* Static type. If this is set, the corresponding type had
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173 * a static modifier.
174 * Note: This may be unnecessary, since static data members
175 * are indicated by other means (bitpos == -1)
176 */
177
178#define TYPE_FLAG_STATIC (1 << 4)
179
180/* Constant type. If this is set, the corresponding type has a
181 * const modifier.
182 */
183
184#define TYPE_FLAG_CONST (1 << 5)
185
186/* Volatile type. If this is set, the corresponding type has a
187 * volatile modifier.
188 */
189
190#define TYPE_FLAG_VOLATILE (1 << 6)
191
192
193/* This is a function type which appears to have a prototype. We need this
194 for function calls in order to tell us if it's necessary to coerce the args,
195 or to just do the standard conversions. This is used with a short field. */
196
197#define TYPE_FLAG_PROTOTYPED (1 << 7)
198
199/* This flag is used to indicate that processing for this type
200 is incomplete.
c5aa993b 201
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202 (Mostly intended for HP platforms, where class methods, for
203 instance, can be encountered before their classes in the debug
204 info; the incomplete type has to be marked so that the class and
205 the method can be assigned correct types.) */
206
207#define TYPE_FLAG_INCOMPLETE (1 << 8)
208
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209/* Instruction-space delimited type. This is for Harvard architectures
210 which have separate instruction and data address spaces (and perhaps
211 others).
212
213 GDB usually defines a flat address space that is a superset of the
214 architecture's two (or more) address spaces, but this is an extension
215 of the architecture's model.
216
217 If TYPE_FLAG_INST is set, an object of the corresponding type
218 resides in instruction memory, even if its address (in the extended
219 flat address space) does not reflect this.
220
221 Similarly, if TYPE_FLAG_DATA is set, then an object of the
222 corresponding type resides in the data memory space, even if
223 this is not indicated by its (flat address space) address.
224
225 If neither flag is set, the default space for functions / methods
226 is instruction space, and for data objects is data memory. */
227
228#define TYPE_FLAG_CODE_SPACE (1 << 9)
229#define TYPE_FLAG_DATA_SPACE (1 << 10)
230
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231
232struct type
c5aa993b 233 {
c906108c 234
c5aa993b 235 /* Code for kind of type */
c906108c 236
c5aa993b 237 enum type_code code;
c906108c 238
c5aa993b 239 /* Name of this type, or NULL if none.
c906108c 240
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241 This is used for printing only, except by poorly designed C++ code.
242 For looking up a name, look for a symbol in the VAR_NAMESPACE. */
c906108c 243
c5aa993b 244 char *name;
c906108c 245
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246 /* Tag name for this type, or NULL if none. This means that the
247 name of the type consists of a keyword followed by the tag name.
248 Which keyword is determined by the type code ("struct" for
249 TYPE_CODE_STRUCT, etc.). As far as I know C/C++ are the only languages
250 with this feature.
c906108c 251
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252 This is used for printing only, except by poorly designed C++ code.
253 For looking up a name, look for a symbol in the STRUCT_NAMESPACE.
254 One more legitimate use is that if TYPE_FLAG_STUB is set, this is
255 the name to use to look for definitions in other files. */
c906108c 256
c5aa993b 257 char *tag_name;
c906108c 258
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259 /* Length of storage for a value of this type. This is what
260 sizeof(type) would return; use it for address arithmetic,
261 memory reads and writes, etc. This size includes padding. For
262 example, an i386 extended-precision floating point value really
263 only occupies ten bytes, but most ABI's declare its size to be
264 12 bytes, to preserve alignment. A `struct type' representing
265 such a floating-point type would have a `length' value of 12,
266 even though the last two bytes are unused.
267
268 There's a bit of a host/target mess here, if you're concerned
269 about machines whose bytes aren't eight bits long, or who don't
270 have byte-addressed memory. Various places pass this to memcpy
271 and such, meaning it must be in units of host bytes. Various
272 other places expect they can calculate addresses by adding it
273 and such, meaning it must be in units of target bytes. For
274 some DSP targets, in which HOST_CHAR_BIT will (presumably) be 8
275 and TARGET_CHAR_BIT will be (say) 32, this is a problem.
276
277 One fix would be to make this field in bits (requiring that it
278 always be a multiple of HOST_CHAR_BIT and TARGET_CHAR_BIT) ---
279 the other choice would be to make it consistently in units of
280 HOST_CHAR_BIT. However, this would still fail to address
281 machines based on a ternary or decimal representation. */
c5aa993b 282 unsigned length;
c906108c 283
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284 /* FIXME, these should probably be restricted to a Fortran-specific
285 field in some fashion. */
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286#define BOUND_CANNOT_BE_DETERMINED 5
287#define BOUND_BY_REF_ON_STACK 4
288#define BOUND_BY_VALUE_ON_STACK 3
289#define BOUND_BY_REF_IN_REG 2
290#define BOUND_BY_VALUE_IN_REG 1
291#define BOUND_SIMPLE 0
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292 int upper_bound_type;
293 int lower_bound_type;
c906108c 294
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295 /* Every type is now associated with a particular objfile, and the
296 type is allocated on the type_obstack for that objfile. One problem
297 however, is that there are times when gdb allocates new types while
298 it is not in the process of reading symbols from a particular objfile.
299 Fortunately, these happen when the type being created is a derived
300 type of an existing type, such as in lookup_pointer_type(). So
301 we can just allocate the new type using the same objfile as the
302 existing type, but to do this we need a backpointer to the objfile
303 from the existing type. Yes this is somewhat ugly, but without
304 major overhaul of the internal type system, it can't be avoided
305 for now. */
c906108c 306
c5aa993b 307 struct objfile *objfile;
c906108c 308
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309 /* For a pointer type, describes the type of object pointed to.
310 For an array type, describes the type of the elements.
311 For a function or method type, describes the type of the return value.
312 For a range type, describes the type of the full range.
313 For a complex type, describes the type of each coordinate.
314 Unused otherwise. */
c906108c 315
c5aa993b 316 struct type *target_type;
c906108c 317
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318 /* Type that is a pointer to this type.
319 NULL if no such pointer-to type is known yet.
320 The debugger may add the address of such a type
321 if it has to construct one later. */
c906108c 322
c5aa993b 323 struct type *pointer_type;
c906108c 324
c5aa993b 325 /* C++: also need a reference type. */
c906108c 326
c5aa993b 327 struct type *reference_type;
c906108c 328
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329 /* C-v variant chain. This points to a type that
330 differs from this one only in a const or volatile
331 attribute (or both). The various c-v variants
332 are chained together in a ring. */
333 struct type *cv_type;
c906108c 334
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335 /* Address-space delimited variant chain. This points to a type
336 that differs from this one only in an address-space qualifier
337 attribute. The otherwise-identical address-space delimited
338 types are chained together in a ring. */
339 struct type *as_type;
340
c5aa993b 341 /* Flags about this type. */
c906108c 342
c5aa993b 343 int flags;
c906108c 344
c5aa993b 345 /* Number of fields described for this type */
c906108c 346
c5aa993b 347 short nfields;
c906108c 348
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349 /* For structure and union types, a description of each field.
350 For set and pascal array types, there is one "field",
351 whose type is the domain type of the set or array.
352 For range types, there are two "fields",
353 the minimum and maximum values (both inclusive).
354 For enum types, each possible value is described by one "field".
355 For a function type, a "field" for each parameter type.
356 For C++ classes, there is one field for each base class (if it is
357 a derived class) plus one field for each class data member. Member
358 functions are recorded elsewhere.
c906108c 359
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360 Using a pointer to a separate array of fields
361 allows all types to have the same size, which is useful
362 because we can allocate the space for a type before
363 we know what to put in it. */
c906108c 364
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365 struct field
366 {
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367
368
369
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370 union field_location
371 {
372 /* Position of this field, counting in bits from start of
373 containing structure.
374 For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
375 For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
376 For a function type, this is the position in the argument list
377 of this argument.
378 For a range bound or enum value, this is the value itself. */
c906108c 379
c5aa993b 380 int bitpos;
c906108c 381
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382 /* For a static field, if TYPE_FIELD_STATIC_HAS_ADDR then physaddr
383 is the location (in the target) of the static field.
384 Otherwise, physname is the mangled label of the static field. */
c906108c 385
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386 CORE_ADDR physaddr;
387 char *physname;
388 }
389 loc;
c906108c 390
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391 /* Size of this field, in bits, or zero if not packed.
392 For an unpacked field, the field's type's length
393 says how many bytes the field occupies.
394 A value of -1 or -2 indicates a static field; -1 means the location
395 is specified by the label loc.physname; -2 means that loc.physaddr
396 specifies the actual address. */
c906108c 397
c5aa993b 398 int bitsize;
c906108c 399
c5aa993b
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400 /* In a struct or union type, type of this field.
401 In a function type, type of this argument.
402 In an array type, the domain-type of the array. */
c906108c 403
c5aa993b 404 struct type *type;
c906108c 405
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406 /* Name of field, value or argument.
407 NULL for range bounds and array domains. */
c906108c 408
c5aa993b 409 char *name;
c906108c 410
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411 }
412 *fields;
c906108c 413
c5aa993b 414 /* For types with virtual functions (TYPE_CODE_STRUCT), VPTR_BASETYPE
7b83ea04 415 is the base class which defined the virtual function table pointer.
c906108c 416
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417 For types that are pointer to member types (TYPE_CODE_MEMBER),
418 VPTR_BASETYPE is the type that this pointer is a member of.
c906108c 419
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420 For method types (TYPE_CODE_METHOD), VPTR_BASETYPE is the aggregate
421 type that contains the method.
c906108c 422
c5aa993b 423 Unused otherwise. */
c906108c 424
c5aa993b 425 struct type *vptr_basetype;
c906108c 426
c5aa993b
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427 /* Field number of the virtual function table pointer in
428 VPTR_BASETYPE. If -1, we were unable to find the virtual
429 function table pointer in initial symbol reading, and
430 fill_in_vptr_fieldno should be called to find it if possible.
c906108c 431
c5aa993b 432 Unused if this type does not have virtual functions. */
c906108c 433
c5aa993b 434 int vptr_fieldno;
c906108c 435
c5aa993b 436 /* Slot to point to additional language-specific fields of this type. */
c906108c 437
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438 union type_specific
439 {
c906108c 440
c5aa993b
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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
c5aa993b 447 struct type **arg_types;
c906108c 448
c5aa993b
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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
c5aa993b 453 struct cplus_struct_type *cplus_stuff;
c906108c 454
701c159d
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455 /* FLOATFORMAT is for TYPE_CODE_FLT. It is a pointer to the
456 floatformat object that describes the floating-point value
457 that resides within the type. */
458
459 const struct floatformat *floatformat;
c5aa993b
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460 }
461 type_specific;
462 };
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463
464#define NULL_TYPE ((struct type *) 0)
465
466/* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
467 nodes. */
468
469struct cplus_struct_type
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470 {
471 /* Number of base classes this type derives from. The baseclasses are
472 stored in the first N_BASECLASSES fields (i.e. the `fields' field of
473 the struct type). I think only the `type' field of such a field has
474 any meaning. */
c906108c 475
c5aa993b 476 short n_baseclasses;
c906108c 477
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478 /* Number of methods with unique names. All overloaded methods with
479 the same name count only once. */
c906108c 480
c5aa993b 481 short nfn_fields;
c906108c 482
c5aa993b
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483 /* Number of methods described for this type, not including the
484 methods that it derives from. */
c906108c 485
c5aa993b 486 short nfn_fields_total;
c906108c 487
c5aa993b
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488 /* The "declared_type" field contains a code saying how the
489 user really declared this type, e.g., "class s", "union s",
490 "struct s".
7b83ea04 491 The 3 above things come out from the C++ compiler looking like classes,
c5aa993b
JM
492 but we keep track of the real declaration so we can give
493 the correct information on "ptype". (Note: TEMPLATE may not
494 belong in this list...) */
c906108c
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495
496#define DECLARED_TYPE_CLASS 0
497#define DECLARED_TYPE_UNION 1
498#define DECLARED_TYPE_STRUCT 2
499#define DECLARED_TYPE_TEMPLATE 3
c5aa993b
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500 short declared_type; /* One of the above codes */
501
502 /* For derived classes, the number of base classes is given by n_baseclasses
503 and virtual_field_bits is a bit vector containing one bit per base class.
504 If the base class is virtual, the corresponding bit will be set.
505 I.E, given:
c906108c 506
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507 class A{};
508 class B{};
509 class C : public B, public virtual A {};
c906108c 510
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511 B is a baseclass of C; A is a virtual baseclass for C.
512 This is a C++ 2.0 language feature. */
c906108c 513
c5aa993b 514 B_TYPE *virtual_field_bits;
c906108c 515
c5aa993b
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516 /* For classes with private fields, the number of fields is given by
517 nfields and private_field_bits is a bit vector containing one bit
518 per field.
519 If the field is private, the corresponding bit will be set. */
c906108c 520
c5aa993b 521 B_TYPE *private_field_bits;
c906108c 522
c5aa993b
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523 /* For classes with protected fields, the number of fields is given by
524 nfields and protected_field_bits is a bit vector containing one bit
525 per field.
526 If the field is private, the corresponding bit will be set. */
c906108c 527
c5aa993b 528 B_TYPE *protected_field_bits;
c906108c 529
c5aa993b
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530 /* for classes with fields to be ignored, either this is optimized out
531 or this field has length 0 */
c906108c 532
c5aa993b 533 B_TYPE *ignore_field_bits;
c906108c 534
c5aa993b
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535 /* For classes, structures, and unions, a description of each field,
536 which consists of an overloaded name, followed by the types of
537 arguments that the method expects, and then the name after it
538 has been renamed to make it distinct.
c906108c 539
c5aa993b 540 fn_fieldlists points to an array of nfn_fields of these. */
c906108c 541
c5aa993b
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542 struct fn_fieldlist
543 {
c906108c 544
c5aa993b 545 /* The overloaded name. */
c906108c 546
c5aa993b 547 char *name;
c906108c 548
c5aa993b 549 /* The number of methods with this name. */
c906108c 550
c5aa993b 551 int length;
c906108c 552
c5aa993b 553 /* The list of methods. */
c906108c 554
c5aa993b
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555 struct fn_field
556 {
c906108c 557
c5aa993b
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558 /* If is_stub is clear, this is the mangled name which we can
559 look up to find the address of the method (FIXME: it would
560 be cleaner to have a pointer to the struct symbol here
561 instead). */
c906108c 562
c5aa993b
JM
563 /* If is_stub is set, this is the portion of the mangled
564 name which specifies the arguments. For example, "ii",
565 if there are two int arguments, or "" if there are no
566 arguments. See gdb_mangle_name for the conversion from this
567 format to the one used if is_stub is clear. */
c906108c 568
c5aa993b 569 char *physname;
c906108c 570
c5aa993b
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571 /* The function type for the method.
572 (This comment used to say "The return value of the method",
7b83ea04 573 but that's wrong. The function type
c5aa993b
JM
574 is expected here, i.e. something with TYPE_CODE_FUNC,
575 and *not* the return-value type). */
c906108c 576
c5aa993b 577 struct type *type;
c906108c 578
c5aa993b
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579 /* The argument list. Only valid if is_stub is clear. Contains
580 the type of each argument, including `this', and ending with
581 a NULL pointer after the last argument. Should not contain
582 a `this' pointer for static member functions. */
c906108c 583
c5aa993b 584 struct type **args;
c906108c 585
c5aa993b
JM
586 /* For virtual functions.
587 First baseclass that defines this virtual function. */
c906108c 588
c5aa993b 589 struct type *fcontext;
c906108c 590
c5aa993b 591 /* Attributes. */
c906108c 592
c5aa993b
JM
593 unsigned int is_const:1;
594 unsigned int is_volatile:1;
595 unsigned int is_private:1;
596 unsigned int is_protected:1;
597 unsigned int is_public:1;
598 unsigned int is_abstract:1;
599 unsigned int is_static:1;
600 unsigned int is_final:1;
601 unsigned int is_synchronized:1;
602 unsigned int is_native:1;
c906108c 603
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604 /* A stub method only has some fields valid (but they are enough
605 to reconstruct the rest of the fields). */
606 unsigned int is_stub:1;
c906108c 607
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608 /* C++ method that is inlined */
609 unsigned int is_inlined:1;
c906108c 610
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611 /* Unused. */
612 unsigned int dummy:4;
c906108c 613
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614 /* Index into that baseclass's virtual function table,
615 minus 2; else if static: VOFFSET_STATIC; else: 0. */
c906108c 616
c5aa993b 617 unsigned int voffset:16;
c906108c 618
c5aa993b 619#define VOFFSET_STATIC 1
c906108c 620
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JM
621 }
622 *fn_fields;
c906108c 623
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624 }
625 *fn_fieldlists;
c906108c 626
7b83ea04 627 /* If this "struct type" describes a template, then it
c906108c
SS
628 * has arguments. "template_args" points to an array of
629 * template arg descriptors, of length "ntemplate_args".
630 * The only real information in each of these template arg descriptors
631 * is a name. "type" will typically just point to a "struct type" with
632 * the placeholder TYPE_CODE_TEMPLATE_ARG type.
633 */
634 short ntemplate_args;
635 struct template_arg
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JM
636 {
637 char *name;
638 struct type *type;
639 }
640 *template_args;
c906108c
SS
641
642 /* If this "struct type" describes a template, it has a list
643 * of instantiations. "instantiations" is a pointer to an array
644 * of type's, one representing each instantiation. There
645 * are "ninstantiations" elements in this array.
646 */
647 short ninstantiations;
648 struct type **instantiations;
649
650 /* The following points to information relevant to the runtime model
651 * of the compiler.
652 * Currently being used only for HP's ANSI C++ compiler.
653 * (This type may have to be changed/enhanced for other compilers.)
654 *
655 * RUNTIME_PTR is NULL if there is no runtime information (currently
656 * this means the type was not compiled by HP aCC).
657 *
658 * Fields in structure pointed to:
659 * ->HAS_VTABLE : 0 => no virtual table, 1 => vtable present
7b83ea04 660 *
c906108c
SS
661 * ->PRIMARY_BASE points to the first non-virtual base class that has
662 * a virtual table.
663 *
664 * ->VIRTUAL_BASE_LIST points to a list of struct type * pointers that
665 * point to the type information for all virtual bases among this type's
666 * ancestors.
667 */
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JM
668 struct runtime_info
669 {
670 short has_vtable;
671 struct type *primary_base;
672 struct type **virtual_base_list;
673 }
674 *runtime_ptr;
c906108c
SS
675
676 /* Pointer to information about enclosing scope, if this is a
677 * local type. If it is not a local type, this is NULL
678 */
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JM
679 struct local_type_info
680 {
681 char *file;
682 int line;
683 }
684 *localtype_ptr;
685 };
c906108c
SS
686
687/* Struct used in computing virtual base list */
688struct vbase
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JM
689 {
690 struct type *vbasetype; /* pointer to virtual base */
691 struct vbase *next; /* next in chain */
692 };
c906108c
SS
693
694/* Struct used for ranking a function for overload resolution */
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JM
695struct badness_vector
696 {
697 int length;
698 int *rank;
699 };
c906108c
SS
700
701/* The default value of TYPE_CPLUS_SPECIFIC(T) points to the
702 this shared static structure. */
703
704extern const struct cplus_struct_type cplus_struct_default;
705
a14ed312 706extern void allocate_cplus_struct_type (struct type *);
c906108c
SS
707
708#define INIT_CPLUS_SPECIFIC(type) \
709 (TYPE_CPLUS_SPECIFIC(type)=(struct cplus_struct_type*)&cplus_struct_default)
710#define ALLOCATE_CPLUS_STRUCT_TYPE(type) allocate_cplus_struct_type (type)
711#define HAVE_CPLUS_STRUCT(type) \
712 (TYPE_CPLUS_SPECIFIC(type) != &cplus_struct_default)
713
714#define TYPE_NAME(thistype) (thistype)->name
715#define TYPE_TAG_NAME(type) ((type)->tag_name)
716#define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
717#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
718#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
719#define TYPE_CV_TYPE(thistype) (thistype)->cv_type
47663de5 720#define TYPE_AS_TYPE(thistype) (thistype)->as_type
c906108c
SS
721/* Note that if thistype is a TYPEDEF type, you have to call check_typedef.
722 But check_typedef does set the TYPE_LENGTH of the TYPEDEF type,
723 so you only have to call check_typedef once. Since allocate_value
724 calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe. */
725#define TYPE_LENGTH(thistype) (thistype)->length
726#define TYPE_OBJFILE(thistype) (thistype)->objfile
727#define TYPE_FLAGS(thistype) (thistype)->flags
728#define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
729#define TYPE_NOSIGN(thistype) ((thistype)->flags & TYPE_FLAG_NOSIGN)
730#define TYPE_CONST(thistype) ((thistype)->flags & TYPE_FLAG_CONST)
731#define TYPE_VOLATILE(thistype) ((thistype)->flags & TYPE_FLAG_VOLATILE)
732#define TYPE_INCOMPLETE(thistype) ((thistype)->flags & TYPE_FLAG_INCOMPLETE)
733/* Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you wan the real
734 type, you need to do TYPE_CODE (check_type (this_type)). */
735#define TYPE_CODE(thistype) (thistype)->code
736#define TYPE_NFIELDS(thistype) (thistype)->nfields
737#define TYPE_FIELDS(thistype) (thistype)->fields
738#define TYPE_TEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->template_args
739#define TYPE_INSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->instantiations
740
741#define TYPE_INDEX_TYPE(type) TYPE_FIELD_TYPE (type, 0)
742#define TYPE_LOW_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 0)
743#define TYPE_HIGH_BOUND(range_type) TYPE_FIELD_BITPOS (range_type, 1)
744
745/* Moto-specific stuff for FORTRAN arrays */
746
747#define TYPE_ARRAY_UPPER_BOUND_TYPE(thistype) (thistype)->upper_bound_type
748#define TYPE_ARRAY_LOWER_BOUND_TYPE(thistype) (thistype)->lower_bound_type
749
750#define TYPE_ARRAY_UPPER_BOUND_VALUE(arraytype) \
751 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),1))
752
753#define TYPE_ARRAY_LOWER_BOUND_VALUE(arraytype) \
754 (TYPE_FIELD_BITPOS((TYPE_FIELD_TYPE((arraytype),0)),0))
755
756/* C++ */
757
758#define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
759#define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
760#define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
761#define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
762#define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
763#define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
764#define TYPE_NTEMPLATE_ARGS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ntemplate_args
765#define TYPE_NINSTANTIATIONS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->ninstantiations
766#define TYPE_DECLARED_TYPE(thistype) TYPE_CPLUS_SPECIFIC(thistype)->declared_type
767#define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
768#define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
769#define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
701c159d 770#define TYPE_FLOATFORMAT(thistype) (thistype)->type_specific.floatformat
c906108c
SS
771#define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
772#define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
773#define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
774#define TYPE_BASECLASS_BITPOS(thistype,index) TYPE_FIELD_BITPOS(thistype,index)
775#define BASETYPE_VIA_PUBLIC(thistype, index) \
776 ((!TYPE_FIELD_PRIVATE(thistype, index)) && (!TYPE_FIELD_PROTECTED(thistype, index)))
777
778#define BASETYPE_VIA_VIRTUAL(thistype, index) \
779 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
780 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index)))
781
782#define FIELD_TYPE(thisfld) ((thisfld).type)
783#define FIELD_NAME(thisfld) ((thisfld).name)
784#define FIELD_BITPOS(thisfld) ((thisfld).loc.bitpos)
785#define FIELD_BITSIZE(thisfld) ((thisfld).bitsize)
786#define FIELD_PHYSNAME(thisfld) ((thisfld).loc.physname)
787#define FIELD_PHYSADDR(thisfld) ((thisfld).loc.physaddr)
788#define SET_FIELD_PHYSNAME(thisfld, name) \
789 ((thisfld).bitsize = -1, FIELD_PHYSNAME(thisfld) = (name))
790#define SET_FIELD_PHYSADDR(thisfld, name) \
791 ((thisfld).bitsize = -2, FIELD_PHYSADDR(thisfld) = (name))
792#define TYPE_FIELD(thistype, n) (thistype)->fields[n]
793#define TYPE_FIELD_TYPE(thistype, n) FIELD_TYPE(TYPE_FIELD(thistype, n))
794#define TYPE_FIELD_NAME(thistype, n) FIELD_NAME(TYPE_FIELD(thistype, n))
795#define TYPE_FIELD_BITPOS(thistype, n) FIELD_BITPOS(TYPE_FIELD(thistype,n))
796#define TYPE_FIELD_BITSIZE(thistype, n) FIELD_BITSIZE(TYPE_FIELD(thistype,n))
797#define TYPE_FIELD_PACKED(thistype, n) (FIELD_BITSIZE(TYPE_FIELD(thistype,n))!=0)
798#define TYPE_TEMPLATE_ARG(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->template_args[n]
799#define TYPE_INSTANTIATION(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->instantiations[n]
800
801#define TYPE_FIELD_PRIVATE_BITS(thistype) \
802 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
803#define TYPE_FIELD_PROTECTED_BITS(thistype) \
804 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
805#define TYPE_FIELD_IGNORE_BITS(thistype) \
806 TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits
807#define TYPE_FIELD_VIRTUAL_BITS(thistype) \
808 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
809#define SET_TYPE_FIELD_PRIVATE(thistype, n) \
810 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
811#define SET_TYPE_FIELD_PROTECTED(thistype, n) \
812 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
813#define SET_TYPE_FIELD_IGNORE(thistype, n) \
814 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n))
815#define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
816 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
817#define TYPE_FIELD_PRIVATE(thistype, n) \
818 (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits == NULL ? 0 \
819 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n)))
820#define TYPE_FIELD_PROTECTED(thistype, n) \
821 (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits == NULL ? 0 \
822 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n)))
823#define TYPE_FIELD_IGNORE(thistype, n) \
824 (TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits == NULL ? 0 \
825 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->ignore_field_bits, (n)))
826#define TYPE_FIELD_VIRTUAL(thistype, n) \
827 (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits == NULL ? 0 \
828 : B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n)))
829
830#define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitsize < 0)
831#define TYPE_FIELD_STATIC_HAS_ADDR(thistype, n) ((thistype)->fields[n].bitsize == -2)
832#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) FIELD_PHYSNAME(TYPE_FIELD(thistype, n))
833#define TYPE_FIELD_STATIC_PHYSADDR(thistype, n) FIELD_PHYSADDR(TYPE_FIELD(thistype, n))
834
835#define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
836#define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
837#define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
838#define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
839#define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
840
841#define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
842#define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
843#define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
844#define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
845#define TYPE_FN_FIELD_CONST(thisfn, n) ((thisfn)[n].is_const)
846#define TYPE_FN_FIELD_VOLATILE(thisfn, n) ((thisfn)[n].is_volatile)
847#define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
848#define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
849#define TYPE_FN_FIELD_PUBLIC(thisfn, n) ((thisfn)[n].is_public)
850#define TYPE_FN_FIELD_STATIC(thisfn, n) ((thisfn)[n].is_static)
851#define TYPE_FN_FIELD_FINAL(thisfn, n) ((thisfn)[n].is_final)
852#define TYPE_FN_FIELD_SYNCHRONIZED(thisfn, n) ((thisfn)[n].is_synchronized)
853#define TYPE_FN_FIELD_NATIVE(thisfn, n) ((thisfn)[n].is_native)
854#define TYPE_FN_FIELD_ABSTRACT(thisfn, n) ((thisfn)[n].is_abstract)
855#define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
856#define TYPE_FN_FIELD_INLINED(thisfn, n) ((thisfn)[n].is_inlined)
857#define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
858#define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
859#define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
860#define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
861
862#define TYPE_RUNTIME_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->runtime_ptr)
863#define TYPE_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype)->has_vtable)
864#define TYPE_HAS_VTABLE(thistype) (TYPE_RUNTIME_PTR(thistype) && TYPE_VTABLE(thistype))
865#define TYPE_PRIMARY_BASE(thistype) (TYPE_RUNTIME_PTR(thistype)->primary_base)
866#define TYPE_VIRTUAL_BASE_LIST(thistype) (TYPE_RUNTIME_PTR(thistype)->virtual_base_list)
c5aa993b 867
c906108c
SS
868#define TYPE_LOCALTYPE_PTR(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr)
869#define TYPE_LOCALTYPE_FILE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->file)
870#define TYPE_LOCALTYPE_LINE(thistype) (TYPE_CPLUS_SPECIFIC(thistype)->localtype_ptr->line)
c5aa993b 871
c906108c 872#define TYPE_IS_OPAQUE(thistype) (((TYPE_CODE (thistype) == TYPE_CODE_STRUCT) || \
7b83ea04
AC
873 (TYPE_CODE (thistype) == TYPE_CODE_UNION)) && \
874 (TYPE_NFIELDS (thistype) == 0) && \
875 (TYPE_CPLUS_SPECIFIC (thistype) && (TYPE_NFN_FIELDS (thistype) == 0)))
c5aa993b
JM
876
877
878
c906108c
SS
879/* Implicit sizes */
880extern struct type *builtin_type_void;
881extern struct type *builtin_type_char;
882extern struct type *builtin_type_short;
883extern struct type *builtin_type_int;
884extern struct type *builtin_type_long;
885extern struct type *builtin_type_signed_char;
886extern struct type *builtin_type_unsigned_char;
887extern struct type *builtin_type_unsigned_short;
888extern struct type *builtin_type_unsigned_int;
889extern struct type *builtin_type_unsigned_long;
890extern struct type *builtin_type_float;
891extern struct type *builtin_type_double;
892extern struct type *builtin_type_long_double;
893extern struct type *builtin_type_complex;
894extern struct type *builtin_type_double_complex;
895extern struct type *builtin_type_string;
896extern struct type *builtin_type_bool;
897
c4093a6a 898/* Address/pointer types: */
090a2205
AC
899/* (C) Language `pointer to data' type. Some target platforms use an
900 implicitly {sign,zero} -extended 32 bit C language pointer on a 64
901 bit ISA. */
902extern struct type *builtin_type_void_data_ptr;
ee3a7b7f
JB
903
904/* (C) Language `pointer to function returning void' type. Since
905 ANSI, C standards have explicitly said that pointers to functions
906 and pointers to data are not interconvertible --- that is, you
907 can't cast a function pointer to void * and back, and expect to get
908 the same value. However, all function pointer types are
909 interconvertible, so void (*) () can server as a generic function
910 pointer. */
911extern struct type *builtin_type_void_func_ptr;
912
c4093a6a
JM
913/* The target CPU's address type. This is the ISA address size. */
914extern struct type *builtin_type_CORE_ADDR;
915/* The symbol table address type. Some object file formats have a 32
916 bit address type even though the TARGET has a 64 bit pointer type
917 (cf MIPS). */
918extern struct type *builtin_type_bfd_vma;
919
920/* Explicit sizes - see C9X <intypes.h> for naming scheme */
c906108c
SS
921extern struct type *builtin_type_int8;
922extern struct type *builtin_type_uint8;
923extern struct type *builtin_type_int16;
924extern struct type *builtin_type_uint16;
925extern struct type *builtin_type_int32;
926extern struct type *builtin_type_uint32;
927extern struct type *builtin_type_int64;
928extern struct type *builtin_type_uint64;
8b982acf
EZ
929extern struct type *builtin_type_int128;
930extern struct type *builtin_type_uint128;
c2d11a7d
JM
931
932/* SIMD types. We inherit these names from GCC. */
917317f4 933extern struct type *builtin_type_v4sf;
c2d11a7d
JM
934extern struct type *builtin_type_v4si;
935extern struct type *builtin_type_v8qi;
936extern struct type *builtin_type_v4hi;
937extern struct type *builtin_type_v2si;
c906108c 938
598f52df
AC
939/* Explicit floating-point formats. See "floatformat.h". */
940extern struct type *builtin_type_ieee_single_big;
941extern struct type *builtin_type_ieee_single_little;
942extern struct type *builtin_type_ieee_double_big;
943extern struct type *builtin_type_ieee_double_little;
944extern struct type *builtin_type_ieee_double_littlebyte_bigword;
945extern struct type *builtin_type_i387_ext;
946extern struct type *builtin_type_m68881_ext;
947extern struct type *builtin_type_i960_ext;
948extern struct type *builtin_type_m88110_ext;
949extern struct type *builtin_type_m88110_harris_ext;
950extern struct type *builtin_type_arm_ext_big;
951extern struct type *builtin_type_arm_ext_littlebyte_bigword;
952extern struct type *builtin_type_ia64_spill_big;
953extern struct type *builtin_type_ia64_spill_little;
954extern struct type *builtin_type_ia64_quad_big;
955extern struct type *builtin_type_ia64_quad_little;
956
9e0b60a8
JM
957/* We use this for the '/c' print format, because builtin_type_char is
958 just a one-byte integral type, which languages less laid back than
959 C will print as ... well, a one-byte integral type. */
960extern struct type *builtin_type_true_char;
961
c906108c
SS
962/* This type represents a type that was unrecognized in symbol
963 read-in. */
964
965extern struct type *builtin_type_error;
966
967extern struct type *builtin_type_long_long;
968extern struct type *builtin_type_unsigned_long_long;
969
970/* Modula-2 types */
971
972extern struct type *builtin_type_m2_char;
973extern struct type *builtin_type_m2_int;
974extern struct type *builtin_type_m2_card;
975extern struct type *builtin_type_m2_real;
976extern struct type *builtin_type_m2_bool;
977
978/* Chill types */
979
980extern struct type *builtin_type_chill_bool;
981extern struct type *builtin_type_chill_char;
982extern struct type *builtin_type_chill_long;
983extern struct type *builtin_type_chill_ulong;
984extern struct type *builtin_type_chill_real;
985
986/* Fortran (F77) types */
987
988extern struct type *builtin_type_f_character;
989extern struct type *builtin_type_f_integer;
ba41d549 990extern struct type *builtin_type_f_integer_s2;
c906108c
SS
991extern struct type *builtin_type_f_logical;
992extern struct type *builtin_type_f_logical_s1;
993extern struct type *builtin_type_f_logical_s2;
c906108c
SS
994extern struct type *builtin_type_f_real;
995extern struct type *builtin_type_f_real_s8;
996extern struct type *builtin_type_f_real_s16;
997extern struct type *builtin_type_f_complex_s8;
998extern struct type *builtin_type_f_complex_s16;
999extern struct type *builtin_type_f_complex_s32;
1000extern struct type *builtin_type_f_void;
1001
1002/* RTTI for C++ */
c5aa993b 1003/* extern struct type *builtin_type_cxx_typeinfo; */
c906108c
SS
1004
1005/* Maximum and minimum values of built-in types */
1006
1007#define MAX_OF_TYPE(t) \
ba41d549
C
1008 (TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) \
1009 : MAX_OF_SIZE(TYPE_LENGTH(t)))
c906108c
SS
1010
1011#define MIN_OF_TYPE(t) \
ba41d549
C
1012 (TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) \
1013 : MIN_OF_SIZE(TYPE_LENGTH(t)))
c906108c
SS
1014
1015/* Allocate space for storing data associated with a particular type.
1016 We ensure that the space is allocated using the same mechanism that
1017 was used to allocate the space for the type structure itself. I.E.
1018 if the type is on an objfile's type_obstack, then the space for data
1019 associated with that type will also be allocated on the type_obstack.
1020 If the type is not associated with any particular objfile (such as
1021 builtin types), then the data space will be allocated with xmalloc,
1022 the same as for the type structure. */
1023
1024#define TYPE_ALLOC(t,size) \
1025 (TYPE_OBJFILE (t) != NULL \
1026 ? obstack_alloc (&TYPE_OBJFILE (t) -> type_obstack, size) \
1027 : xmalloc (size))
1028
a14ed312 1029extern struct type *alloc_type (struct objfile *);
c906108c 1030
a14ed312
KB
1031extern struct type *init_type (enum type_code, int, int, char *,
1032 struct objfile *);
c906108c 1033
a14ed312 1034extern struct type *lookup_reference_type (struct type *);
c906108c 1035
a14ed312 1036extern struct type *make_reference_type (struct type *, struct type **);
c906108c 1037
a14ed312 1038extern struct type *make_cv_type (int, int, struct type *, struct type **);
c906108c 1039
a02fd225
DJ
1040extern void finish_cv_type (struct type *);
1041
47663de5
MS
1042extern int address_space_name_to_int (char *);
1043
1044extern char *address_space_int_to_name (int);
1045
1046extern struct type *make_type_with_address_space (struct type *type,
1047 int space_identifier);
1048
a14ed312 1049extern struct type *lookup_member_type (struct type *, struct type *);
c906108c
SS
1050
1051extern void
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1052smash_to_method_type (struct type *, struct type *, struct type *,
1053 struct type **);
c906108c
SS
1054
1055extern void
a14ed312 1056smash_to_member_type (struct type *, struct type *, struct type *);
c906108c 1057
a14ed312 1058extern struct type *allocate_stub_method (struct type *);
c906108c 1059
a14ed312 1060extern char *type_name_no_tag (const struct type *);
c906108c 1061
a14ed312 1062extern struct type *lookup_struct_elt_type (struct type *, char *, int);
c906108c 1063
a14ed312 1064extern struct type *make_pointer_type (struct type *, struct type **);
c906108c 1065
a14ed312 1066extern struct type *lookup_pointer_type (struct type *);
c906108c 1067
a14ed312 1068extern struct type *make_function_type (struct type *, struct type **);
c906108c 1069
a14ed312 1070extern struct type *lookup_function_type (struct type *);
c906108c 1071
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1072extern struct type *create_range_type (struct type *, struct type *, int,
1073 int);
c906108c 1074
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1075extern struct type *create_array_type (struct type *, struct type *,
1076 struct type *);
c906108c 1077
a14ed312 1078extern struct type *create_string_type (struct type *, struct type *);
c906108c 1079
a14ed312 1080extern struct type *create_set_type (struct type *, struct type *);
c906108c 1081
a14ed312 1082extern int chill_varying_type (struct type *);
c906108c 1083
a14ed312 1084extern struct type *lookup_unsigned_typename (char *);
c906108c 1085
a14ed312 1086extern struct type *lookup_signed_typename (char *);
c906108c 1087
a14ed312 1088extern struct type *check_typedef (struct type *);
c906108c
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1089
1090#define CHECK_TYPEDEF(TYPE) (TYPE) = check_typedef (TYPE)
1091
a14ed312 1092extern void check_stub_method (struct type *, int, int);
c906108c 1093
a14ed312 1094extern struct type *lookup_primitive_typename (char *);
c906108c 1095
a14ed312 1096extern char *gdb_mangle_name (struct type *, int, int);
c906108c 1097
a14ed312 1098extern struct type *builtin_type (char **);
c906108c 1099
a14ed312 1100extern struct type *lookup_typename (char *, struct block *, int);
c906108c 1101
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1102extern struct type *lookup_template_type (char *, struct type *,
1103 struct block *);
c906108c 1104
a14ed312 1105extern struct type *lookup_fundamental_type (struct objfile *, int);
c906108c 1106
a14ed312 1107extern void fill_in_vptr_fieldno (struct type *);
c906108c 1108
a14ed312 1109extern int get_destructor_fn_field (struct type *, int *, int *);
c906108c 1110
a14ed312 1111extern int get_discrete_bounds (struct type *, LONGEST *, LONGEST *);
c906108c 1112
a14ed312 1113extern int is_ancestor (struct type *, struct type *);
c906108c 1114
a14ed312 1115extern int has_vtable (struct type *);
c906108c 1116
a14ed312 1117extern struct type *primary_base_class (struct type *);
c906108c 1118
a14ed312 1119extern struct type **virtual_base_list (struct type *);
c906108c 1120
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1121extern int virtual_base_list_length (struct type *);
1122extern int virtual_base_list_length_skip_primaries (struct type *);
c906108c 1123
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1124extern int virtual_base_index (struct type *, struct type *);
1125extern int virtual_base_index_skip_primaries (struct type *, struct type *);
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1126
1127
a14ed312 1128extern int class_index_in_primary_list (struct type *);
c906108c 1129
a14ed312 1130extern int count_virtual_fns (struct type *);
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1131
1132/* Constants for HP/Taligent ANSI C++ runtime model */
1133
1134/* Where virtual function entries begin in the
1135 * virtual table, in the non-RRBC vtable format.
1136 * First 4 are the metavtable pointer, top offset,
1137 * typeinfo pointer, and dup base info pointer */
1138#define HP_ACC_VFUNC_START 4
1139
7b83ea04 1140/* (Negative) Offset where virtual base offset entries begin
c906108c 1141 * in the virtual table. Skips over metavtable pointer and
7b83ea04 1142 * the self-offset entry.
c906108c
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1143 * NOTE: NEGATE THIS BEFORE USING! The virtual base offsets
1144 * appear before the address point of the vtable (the slot
1145 * pointed to by the object's vtable pointer), i.e. at lower
1146 * addresses than the vtable pointer. */
1147#define HP_ACC_VBASE_START 2
1148
1149/* (Positive) Offset where the pointer to the typeinfo
1150 * object is present in the virtual table */
1151#define HP_ACC_TYPEINFO_OFFSET 2
1152
1153/* (Positive) Offset where the ``top offset'' entry of
1154 * the virtual table is */
1155#define HP_ACC_TOP_OFFSET_OFFSET 1
1156
1157/* Overload resolution */
1158
1159#define LENGTH_MATCH(bv) ((bv)->rank[0])
1160
c5aa993b 1161/* Badness if parameter list length doesn't match arg list length */
c906108c 1162#define LENGTH_MISMATCH_BADNESS 100
c5aa993b 1163/* Dummy badness value for nonexistent parameter positions */
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1164#define TOO_FEW_PARAMS_BADNESS 100
1165/* Badness if no conversion among types */
1166#define INCOMPATIBLE_TYPE_BADNESS 100
1167/* Badness of coercing large integer to smaller size */
1168#define INTEGER_COERCION_BADNESS 100
1169/* Badness of coercing large floating type to smaller size */
1170#define FLOAT_COERCION_BADNESS 100
1171
1172/* Badness of integral promotion */
1173#define INTEGER_PROMOTION_BADNESS 1
1174/* Badness of floating promotion */
1175#define FLOAT_PROMOTION_BADNESS 1
1176/* Badness of integral conversion */
1177#define INTEGER_CONVERSION_BADNESS 2
1178/* Badness of floating conversion */
1179#define FLOAT_CONVERSION_BADNESS 2
1180/* Badness of integer<->floating conversions */
1181#define INT_FLOAT_CONVERSION_BADNESS 2
1182/* Badness of converting to a boolean */
1183#define BOOLEAN_CONVERSION_BADNESS 2
1184/* Badness of pointer conversion */
1185#define POINTER_CONVERSION_BADNESS 2
1186/* Badness of conversion of pointer to void pointer */
1187#define VOID_PTR_CONVERSION_BADNESS 2
db577aea 1188/* Badness of converting derived to base class */
c906108c 1189#define BASE_CONVERSION_BADNESS 2
db577aea
AC
1190/* Badness of converting from non-reference to reference */
1191#define REFERENCE_CONVERSION_BADNESS 2
7b83ea04 1192
c906108c
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1193/* Non-standard conversions allowed by the debugger */
1194/* Converting a pointer to an int is usually OK */
1195#define NS_POINTER_CONVERSION_BADNESS 10
1196
1197
a14ed312 1198extern int compare_badness (struct badness_vector *, struct badness_vector *);
c906108c 1199
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1200extern struct badness_vector *rank_function (struct type **, int,
1201 struct type **, int);
c906108c 1202
a14ed312 1203extern int rank_one_type (struct type *, struct type *);
c906108c 1204
a14ed312 1205extern void recursive_dump_type (struct type *, int);
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1206
1207/* printcmd.c */
1208
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JM
1209extern void print_scalar_formatted (char *, struct type *, int, int,
1210 struct ui_file *);
c906108c 1211
a14ed312 1212extern int can_dereference (struct type *);
c906108c 1213
a14ed312 1214extern int is_integral_type (struct type *);
adf40b2e 1215
a14ed312 1216extern void maintenance_print_type (char *, int);
c906108c 1217
c5aa993b 1218#endif /* GDBTYPES_H */
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